* [PATCH 1/4] strip: move driver to staging
@ 2009-10-20 5:17 John W. Linville
2009-10-20 5:17 ` [PATCH 2/4] arlan: " John W. Linville
` (2 more replies)
0 siblings, 3 replies; 33+ messages in thread
From: John W. Linville @ 2009-10-20 5:17 UTC (permalink / raw)
To: linux-kernel; +Cc: gregkh, John W. Linville
Move the strip ("Starmode Radio IP") driver to drivers/staging. For
several years this driver has only seen API "bombing-run" changes, and
few people ever had the hardware. This driver represents unnecessary
ongoing maintenance for no clear benefit.
This patch brought to you by the "hacking" session at the 2009 Kernel
Summit in Tokyo, Japan...
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/Kconfig | 23 -
drivers/net/wireless/Makefile | 1 -
drivers/net/wireless/strip.c | 2805 ----------------------------------------
drivers/staging/Kconfig | 2 +
drivers/staging/Makefile | 1 +
drivers/staging/strip/Kconfig | 22 +
drivers/staging/strip/Makefile | 1 +
drivers/staging/strip/strip.c | 2805 ++++++++++++++++++++++++++++++++++++++++
8 files changed, 2831 insertions(+), 2829 deletions(-)
delete mode 100644 drivers/net/wireless/strip.c
create mode 100644 drivers/staging/strip/Kconfig
create mode 100644 drivers/staging/strip/Makefile
create mode 100644 drivers/staging/strip/strip.c
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index d7a764a..019db8e 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -24,29 +24,6 @@ menuconfig WLAN_PRE80211
This option does not affect the kernel build, it only
lets you choose drivers.
-config STRIP
- tristate "STRIP (Metricom starmode radio IP)"
- depends on INET && WLAN_PRE80211
- select WIRELESS_EXT
- ---help---
- Say Y if you have a Metricom radio and intend to use Starmode Radio
- IP. STRIP is a radio protocol developed for the MosquitoNet project
- to send Internet traffic using Metricom radios. Metricom radios are
- small, battery powered, 100kbit/sec packet radio transceivers, about
- the size and weight of a cellular telephone. (You may also have heard
- them called "Metricom modems" but we avoid the term "modem" because
- it misleads many people into thinking that you can plug a Metricom
- modem into a phone line and use it as a modem.)
-
- You can use STRIP on any Linux machine with a serial port, although
- it is obviously most useful for people with laptop computers. If you
- think you might get a Metricom radio in the future, there is no harm
- in saying Y to STRIP now, except that it makes the kernel a bit
- bigger.
-
- To compile this as a module, choose M here: the module will be
- called strip.
-
config ARLAN
tristate "Aironet Arlan 655 & IC2200 DS support"
depends on ISA && !64BIT && WLAN_PRE80211
diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
index 7a4647e..527c272 100644
--- a/drivers/net/wireless/Makefile
+++ b/drivers/net/wireless/Makefile
@@ -5,7 +5,6 @@
obj-$(CONFIG_IPW2100) += ipw2x00/
obj-$(CONFIG_IPW2200) += ipw2x00/
-obj-$(CONFIG_STRIP) += strip.o
obj-$(CONFIG_ARLAN) += arlan.o
arlan-objs := arlan-main.o arlan-proc.o
diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c
deleted file mode 100644
index ea6a87c..0000000
--- a/drivers/net/wireless/strip.c
+++ /dev/null
@@ -1,2805 +0,0 @@
-/*
- * Copyright 1996 The Board of Trustees of The Leland Stanford
- * Junior University. All Rights Reserved.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies. Stanford University
- * makes no representations about the suitability of this
- * software for any purpose. It is provided "as is" without
- * express or implied warranty.
- *
- * strip.c This module implements Starmode Radio IP (STRIP)
- * for kernel-based devices like TTY. It interfaces between a
- * raw TTY, and the kernel's INET protocol layers (via DDI).
- *
- * Version: @(#)strip.c 1.3 July 1997
- *
- * Author: Stuart Cheshire <cheshire@cs.stanford.edu>
- *
- * Fixes: v0.9 12th Feb 1996 (SC)
- * New byte stuffing (2+6 run-length encoding)
- * New watchdog timer task
- * New Protocol key (SIP0)
- *
- * v0.9.1 3rd March 1996 (SC)
- * Changed to dynamic device allocation -- no more compile
- * time (or boot time) limit on the number of STRIP devices.
- *
- * v0.9.2 13th March 1996 (SC)
- * Uses arp cache lookups (but doesn't send arp packets yet)
- *
- * v0.9.3 17th April 1996 (SC)
- * Fixed bug where STR_ERROR flag was getting set unneccessarily
- * (causing otherwise good packets to be unneccessarily dropped)
- *
- * v0.9.4 27th April 1996 (SC)
- * First attempt at using "&COMMAND" Starmode AT commands
- *
- * v0.9.5 29th May 1996 (SC)
- * First attempt at sending (unicast) ARP packets
- *
- * v0.9.6 5th June 1996 (Elliot)
- * Put "message level" tags in every "printk" statement
- *
- * v0.9.7 13th June 1996 (laik)
- * Added support for the /proc fs
- *
- * v0.9.8 July 1996 (Mema)
- * Added packet logging
- *
- * v1.0 November 1996 (SC)
- * Fixed (severe) memory leaks in the /proc fs code
- * Fixed race conditions in the logging code
- *
- * v1.1 January 1997 (SC)
- * Deleted packet logging (use tcpdump instead)
- * Added support for Metricom Firmware v204 features
- * (like message checksums)
- *
- * v1.2 January 1997 (SC)
- * Put portables list back in
- *
- * v1.3 July 1997 (SC)
- * Made STRIP driver set the radio's baud rate automatically.
- * It is no longer necessarily to manually set the radio's
- * rate permanently to 115200 -- the driver handles setting
- * the rate automatically.
- */
-
-#ifdef MODULE
-static const char StripVersion[] = "1.3A-STUART.CHESHIRE-MODULAR";
-#else
-static const char StripVersion[] = "1.3A-STUART.CHESHIRE";
-#endif
-
-#define TICKLE_TIMERS 0
-#define EXT_COUNTERS 1
-
-
-/************************************************************************/
-/* Header files */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-# include <linux/ctype.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/in.h>
-#include <linux/tty.h>
-#include <linux/errno.h>
-#include <linux/netdevice.h>
-#include <linux/inetdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-#include <linux/if_strip.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/serial.h>
-#include <linux/serialP.h>
-#include <linux/rcupdate.h>
-#include <net/arp.h>
-#include <net/net_namespace.h>
-
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/time.h>
-#include <linux/jiffies.h>
-
-/************************************************************************/
-/* Useful structures and definitions */
-
-/*
- * A MetricomKey identifies the protocol being carried inside a Metricom
- * Starmode packet.
- */
-
-typedef union {
- __u8 c[4];
- __u32 l;
-} MetricomKey;
-
-/*
- * An IP address can be viewed as four bytes in memory (which is what it is) or as
- * a single 32-bit long (which is convenient for assignment, equality testing etc.)
- */
-
-typedef union {
- __u8 b[4];
- __u32 l;
-} IPaddr;
-
-/*
- * A MetricomAddressString is used to hold a printable representation of
- * a Metricom address.
- */
-
-typedef struct {
- __u8 c[24];
-} MetricomAddressString;
-
-/* Encapsulation can expand packet of size x to 65/64x + 1
- * Sent packet looks like "<CR>*<address>*<key><encaps payload><CR>"
- * 1 1 1-18 1 4 ? 1
- * eg. <CR>*0000-1234*SIP0<encaps payload><CR>
- * We allow 31 bytes for the stars, the key, the address and the <CR>s
- */
-#define STRIP_ENCAP_SIZE(X) (32 + (X)*65L/64L)
-
-/*
- * A STRIP_Header is never really sent over the radio, but making a dummy
- * header for internal use within the kernel that looks like an Ethernet
- * header makes certain other software happier. For example, tcpdump
- * already understands Ethernet headers.
- */
-
-typedef struct {
- MetricomAddress dst_addr; /* Destination address, e.g. "0000-1234" */
- MetricomAddress src_addr; /* Source address, e.g. "0000-5678" */
- unsigned short protocol; /* The protocol type, using Ethernet codes */
-} STRIP_Header;
-
-typedef struct {
- char c[60];
-} MetricomNode;
-
-#define NODE_TABLE_SIZE 32
-typedef struct {
- struct timeval timestamp;
- int num_nodes;
- MetricomNode node[NODE_TABLE_SIZE];
-} MetricomNodeTable;
-
-enum { FALSE = 0, TRUE = 1 };
-
-/*
- * Holds the radio's firmware version.
- */
-typedef struct {
- char c[50];
-} FirmwareVersion;
-
-/*
- * Holds the radio's serial number.
- */
-typedef struct {
- char c[18];
-} SerialNumber;
-
-/*
- * Holds the radio's battery voltage.
- */
-typedef struct {
- char c[11];
-} BatteryVoltage;
-
-typedef struct {
- char c[8];
-} char8;
-
-enum {
- NoStructure = 0, /* Really old firmware */
- StructuredMessages = 1, /* Parsable AT response msgs */
- ChecksummedMessages = 2 /* Parsable AT response msgs with checksums */
-};
-
-struct strip {
- int magic;
- /*
- * These are pointers to the malloc()ed frame buffers.
- */
-
- unsigned char *rx_buff; /* buffer for received IP packet */
- unsigned char *sx_buff; /* buffer for received serial data */
- int sx_count; /* received serial data counter */
- int sx_size; /* Serial buffer size */
- unsigned char *tx_buff; /* transmitter buffer */
- unsigned char *tx_head; /* pointer to next byte to XMIT */
- int tx_left; /* bytes left in XMIT queue */
- int tx_size; /* Serial buffer size */
-
- /*
- * STRIP interface statistics.
- */
-
- unsigned long rx_packets; /* inbound frames counter */
- unsigned long tx_packets; /* outbound frames counter */
- unsigned long rx_errors; /* Parity, etc. errors */
- unsigned long tx_errors; /* Planned stuff */
- unsigned long rx_dropped; /* No memory for skb */
- unsigned long tx_dropped; /* When MTU change */
- unsigned long rx_over_errors; /* Frame bigger than STRIP buf. */
-
- unsigned long pps_timer; /* Timer to determine pps */
- unsigned long rx_pps_count; /* Counter to determine pps */
- unsigned long tx_pps_count; /* Counter to determine pps */
- unsigned long sx_pps_count; /* Counter to determine pps */
- unsigned long rx_average_pps; /* rx packets per second * 8 */
- unsigned long tx_average_pps; /* tx packets per second * 8 */
- unsigned long sx_average_pps; /* sent packets per second * 8 */
-
-#ifdef EXT_COUNTERS
- unsigned long rx_bytes; /* total received bytes */
- unsigned long tx_bytes; /* total received bytes */
- unsigned long rx_rbytes; /* bytes thru radio i/f */
- unsigned long tx_rbytes; /* bytes thru radio i/f */
- unsigned long rx_sbytes; /* tot bytes thru serial i/f */
- unsigned long tx_sbytes; /* tot bytes thru serial i/f */
- unsigned long rx_ebytes; /* tot stat/err bytes */
- unsigned long tx_ebytes; /* tot stat/err bytes */
-#endif
-
- /*
- * Internal variables.
- */
-
- struct list_head list; /* Linked list of devices */
-
- int discard; /* Set if serial error */
- int working; /* Is radio working correctly? */
- int firmware_level; /* Message structuring level */
- int next_command; /* Next periodic command */
- unsigned int user_baud; /* The user-selected baud rate */
- int mtu; /* Our mtu (to spot changes!) */
- long watchdog_doprobe; /* Next time to test the radio */
- long watchdog_doreset; /* Time to do next reset */
- long gratuitous_arp; /* Time to send next ARP refresh */
- long arp_interval; /* Next ARP interval */
- struct timer_list idle_timer; /* For periodic wakeup calls */
- MetricomAddress true_dev_addr; /* True address of radio */
- int manual_dev_addr; /* Hack: See note below */
-
- FirmwareVersion firmware_version; /* The radio's firmware version */
- SerialNumber serial_number; /* The radio's serial number */
- BatteryVoltage battery_voltage; /* The radio's battery voltage */
-
- /*
- * Other useful structures.
- */
-
- struct tty_struct *tty; /* ptr to TTY structure */
- struct net_device *dev; /* Our device structure */
-
- /*
- * Neighbour radio records
- */
-
- MetricomNodeTable portables;
- MetricomNodeTable poletops;
-};
-
-/*
- * Note: manual_dev_addr hack
- *
- * It is not possible to change the hardware address of a Metricom radio,
- * or to send packets with a user-specified hardware source address, thus
- * trying to manually set a hardware source address is a questionable
- * thing to do. However, if the user *does* manually set the hardware
- * source address of a STRIP interface, then the kernel will believe it,
- * and use it in certain places. For example, the hardware address listed
- * by ifconfig will be the manual address, not the true one.
- * (Both addresses are listed in /proc/net/strip.)
- * Also, ARP packets will be sent out giving the user-specified address as
- * the source address, not the real address. This is dangerous, because
- * it means you won't receive any replies -- the ARP replies will go to
- * the specified address, which will be some other radio. The case where
- * this is useful is when that other radio is also connected to the same
- * machine. This allows you to connect a pair of radios to one machine,
- * and to use one exclusively for inbound traffic, and the other
- * exclusively for outbound traffic. Pretty neat, huh?
- *
- * Here's the full procedure to set this up:
- *
- * 1. "slattach" two interfaces, e.g. st0 for outgoing packets,
- * and st1 for incoming packets
- *
- * 2. "ifconfig" st0 (outbound radio) to have the hardware address
- * which is the real hardware address of st1 (inbound radio).
- * Now when it sends out packets, it will masquerade as st1, and
- * replies will be sent to that radio, which is exactly what we want.
- *
- * 3. Set the route table entry ("route add default ..." or
- * "route add -net ...", as appropriate) to send packets via the st0
- * interface (outbound radio). Do not add any route which sends packets
- * out via the st1 interface -- that radio is for inbound traffic only.
- *
- * 4. "ifconfig" st1 (inbound radio) to have hardware address zero.
- * This tells the STRIP driver to "shut down" that interface and not
- * send any packets through it. In particular, it stops sending the
- * periodic gratuitous ARP packets that a STRIP interface normally sends.
- * Also, when packets arrive on that interface, it will search the
- * interface list to see if there is another interface who's manual
- * hardware address matches its own real address (i.e. st0 in this
- * example) and if so it will transfer ownership of the skbuff to
- * that interface, so that it looks to the kernel as if the packet
- * arrived on that interface. This is necessary because when the
- * kernel sends an ARP packet on st0, it expects to get a reply on
- * st0, and if it sees the reply come from st1 then it will ignore
- * it (to be accurate, it puts the entry in the ARP table, but
- * labelled in such a way that st0 can't use it).
- *
- * Thanks to Petros Maniatis for coming up with the idea of splitting
- * inbound and outbound traffic between two interfaces, which turned
- * out to be really easy to implement, even if it is a bit of a hack.
- *
- * Having set a manual address on an interface, you can restore it
- * to automatic operation (where the address is automatically kept
- * consistent with the real address of the radio) by setting a manual
- * address of all ones, e.g. "ifconfig st0 hw strip FFFFFFFFFFFF"
- * This 'turns off' manual override mode for the device address.
- *
- * Note: The IEEE 802 headers reported in tcpdump will show the *real*
- * radio addresses the packets were sent and received from, so that you
- * can see what is really going on with packets, and which interfaces
- * they are really going through.
- */
-
-
-/************************************************************************/
-/* Constants */
-
-/*
- * CommandString1 works on all radios
- * Other CommandStrings are only used with firmware that provides structured responses.
- *
- * ats319=1 Enables Info message for node additions and deletions
- * ats319=2 Enables Info message for a new best node
- * ats319=4 Enables checksums
- * ats319=8 Enables ACK messages
- */
-
-static const int MaxCommandStringLength = 32;
-static const int CompatibilityCommand = 1;
-
-static const char CommandString0[] = "*&COMMAND*ATS319=7"; /* Turn on checksums & info messages */
-static const char CommandString1[] = "*&COMMAND*ATS305?"; /* Query radio name */
-static const char CommandString2[] = "*&COMMAND*ATS325?"; /* Query battery voltage */
-static const char CommandString3[] = "*&COMMAND*ATS300?"; /* Query version information */
-static const char CommandString4[] = "*&COMMAND*ATS311?"; /* Query poletop list */
-static const char CommandString5[] = "*&COMMAND*AT~LA"; /* Query portables list */
-typedef struct {
- const char *string;
- long length;
-} StringDescriptor;
-
-static const StringDescriptor CommandString[] = {
- {CommandString0, sizeof(CommandString0) - 1},
- {CommandString1, sizeof(CommandString1) - 1},
- {CommandString2, sizeof(CommandString2) - 1},
- {CommandString3, sizeof(CommandString3) - 1},
- {CommandString4, sizeof(CommandString4) - 1},
- {CommandString5, sizeof(CommandString5) - 1}
-};
-
-#define GOT_ALL_RADIO_INFO(S) \
- ((S)->firmware_version.c[0] && \
- (S)->battery_voltage.c[0] && \
- memcmp(&(S)->true_dev_addr, zero_address.c, sizeof(zero_address)))
-
-static const char hextable[16] = "0123456789ABCDEF";
-
-static const MetricomAddress zero_address;
-static const MetricomAddress broadcast_address =
- { {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF} };
-
-static const MetricomKey SIP0Key = { "SIP0" };
-static const MetricomKey ARP0Key = { "ARP0" };
-static const MetricomKey ATR_Key = { "ATR " };
-static const MetricomKey ACK_Key = { "ACK_" };
-static const MetricomKey INF_Key = { "INF_" };
-static const MetricomKey ERR_Key = { "ERR_" };
-
-static const long MaxARPInterval = 60 * HZ; /* One minute */
-
-/*
- * Maximum Starmode packet length is 1183 bytes. Allowing 4 bytes for
- * protocol key, 4 bytes for checksum, one byte for CR, and 65/64 expansion
- * for STRIP encoding, that translates to a maximum payload MTU of 1155.
- * Note: A standard NFS 1K data packet is a total of 0x480 (1152) bytes
- * long, including IP header, UDP header, and NFS header. Setting the STRIP
- * MTU to 1152 allows us to send default sized NFS packets without fragmentation.
- */
-static const unsigned short MAX_SEND_MTU = 1152;
-static const unsigned short MAX_RECV_MTU = 1500; /* Hoping for Ethernet sized packets in the future! */
-static const unsigned short DEFAULT_STRIP_MTU = 1152;
-static const int STRIP_MAGIC = 0x5303;
-static const long LongTime = 0x7FFFFFFF;
-
-/************************************************************************/
-/* Global variables */
-
-static LIST_HEAD(strip_list);
-static DEFINE_SPINLOCK(strip_lock);
-
-/************************************************************************/
-/* Macros */
-
-/* Returns TRUE if text T begins with prefix P */
-#define has_prefix(T,L,P) (((L) >= sizeof(P)-1) && !strncmp((T), (P), sizeof(P)-1))
-
-/* Returns TRUE if text T of length L is equal to string S */
-#define text_equal(T,L,S) (((L) == sizeof(S)-1) && !strncmp((T), (S), sizeof(S)-1))
-
-#define READHEX(X) ((X)>='0' && (X)<='9' ? (X)-'0' : \
- (X)>='a' && (X)<='f' ? (X)-'a'+10 : \
- (X)>='A' && (X)<='F' ? (X)-'A'+10 : 0 )
-
-#define READHEX16(X) ((__u16)(READHEX(X)))
-
-#define READDEC(X) ((X)>='0' && (X)<='9' ? (X)-'0' : 0)
-
-#define ARRAY_END(X) (&((X)[ARRAY_SIZE(X)]))
-
-#define JIFFIE_TO_SEC(X) ((X) / HZ)
-
-
-/************************************************************************/
-/* Utility routines */
-
-static int arp_query(unsigned char *haddr, u32 paddr,
- struct net_device *dev)
-{
- struct neighbour *neighbor_entry;
- int ret = 0;
-
- neighbor_entry = neigh_lookup(&arp_tbl, &paddr, dev);
-
- if (neighbor_entry != NULL) {
- neighbor_entry->used = jiffies;
- if (neighbor_entry->nud_state & NUD_VALID) {
- memcpy(haddr, neighbor_entry->ha, dev->addr_len);
- ret = 1;
- }
- neigh_release(neighbor_entry);
- }
- return ret;
-}
-
-static void DumpData(char *msg, struct strip *strip_info, __u8 * ptr,
- __u8 * end)
-{
- static const int MAX_DumpData = 80;
- __u8 pkt_text[MAX_DumpData], *p = pkt_text;
-
- *p++ = '\"';
-
- while (ptr < end && p < &pkt_text[MAX_DumpData - 4]) {
- if (*ptr == '\\') {
- *p++ = '\\';
- *p++ = '\\';
- } else {
- if (*ptr >= 32 && *ptr <= 126) {
- *p++ = *ptr;
- } else {
- sprintf(p, "\\%02X", *ptr);
- p += 3;
- }
- }
- ptr++;
- }
-
- if (ptr == end)
- *p++ = '\"';
- *p++ = 0;
-
- printk(KERN_INFO "%s: %-13s%s\n", strip_info->dev->name, msg, pkt_text);
-}
-
-
-/************************************************************************/
-/* Byte stuffing/unstuffing routines */
-
-/* Stuffing scheme:
- * 00 Unused (reserved character)
- * 01-3F Run of 2-64 different characters
- * 40-7F Run of 1-64 different characters plus a single zero at the end
- * 80-BF Run of 1-64 of the same character
- * C0-FF Run of 1-64 zeroes (ASCII 0)
- */
-
-typedef enum {
- Stuff_Diff = 0x00,
- Stuff_DiffZero = 0x40,
- Stuff_Same = 0x80,
- Stuff_Zero = 0xC0,
- Stuff_NoCode = 0xFF, /* Special code, meaning no code selected */
-
- Stuff_CodeMask = 0xC0,
- Stuff_CountMask = 0x3F,
- Stuff_MaxCount = 0x3F,
- Stuff_Magic = 0x0D /* The value we are eliminating */
-} StuffingCode;
-
-/* StuffData encodes the data starting at "src" for "length" bytes.
- * It writes it to the buffer pointed to by "dst" (which must be at least
- * as long as 1 + 65/64 of the input length). The output may be up to 1.6%
- * larger than the input for pathological input, but will usually be smaller.
- * StuffData returns the new value of the dst pointer as its result.
- * "code_ptr_ptr" points to a "__u8 *" which is used to hold encoding state
- * between calls, allowing an encoded packet to be incrementally built up
- * from small parts. On the first call, the "__u8 *" pointed to should be
- * initialized to NULL; between subsequent calls the calling routine should
- * leave the value alone and simply pass it back unchanged so that the
- * encoder can recover its current state.
- */
-
-#define StuffData_FinishBlock(X) \
-(*code_ptr = (X) ^ Stuff_Magic, code = Stuff_NoCode)
-
-static __u8 *StuffData(__u8 * src, __u32 length, __u8 * dst,
- __u8 ** code_ptr_ptr)
-{
- __u8 *end = src + length;
- __u8 *code_ptr = *code_ptr_ptr;
- __u8 code = Stuff_NoCode, count = 0;
-
- if (!length)
- return (dst);
-
- if (code_ptr) {
- /*
- * Recover state from last call, if applicable
- */
- code = (*code_ptr ^ Stuff_Magic) & Stuff_CodeMask;
- count = (*code_ptr ^ Stuff_Magic) & Stuff_CountMask;
- }
-
- while (src < end) {
- switch (code) {
- /* Stuff_NoCode: If no current code, select one */
- case Stuff_NoCode:
- /* Record where we're going to put this code */
- code_ptr = dst++;
- count = 0; /* Reset the count (zero means one instance) */
- /* Tentatively start a new block */
- if (*src == 0) {
- code = Stuff_Zero;
- src++;
- } else {
- code = Stuff_Same;
- *dst++ = *src++ ^ Stuff_Magic;
- }
- /* Note: We optimistically assume run of same -- */
- /* which will be fixed later in Stuff_Same */
- /* if it turns out not to be true. */
- break;
-
- /* Stuff_Zero: We already have at least one zero encoded */
- case Stuff_Zero:
- /* If another zero, count it, else finish this code block */
- if (*src == 0) {
- count++;
- src++;
- } else {
- StuffData_FinishBlock(Stuff_Zero + count);
- }
- break;
-
- /* Stuff_Same: We already have at least one byte encoded */
- case Stuff_Same:
- /* If another one the same, count it */
- if ((*src ^ Stuff_Magic) == code_ptr[1]) {
- count++;
- src++;
- break;
- }
- /* else, this byte does not match this block. */
- /* If we already have two or more bytes encoded, finish this code block */
- if (count) {
- StuffData_FinishBlock(Stuff_Same + count);
- break;
- }
- /* else, we only have one so far, so switch to Stuff_Diff code */
- code = Stuff_Diff;
- /* and fall through to Stuff_Diff case below
- * Note cunning cleverness here: case Stuff_Diff compares
- * the current character with the previous two to see if it
- * has a run of three the same. Won't this be an error if
- * there aren't two previous characters stored to compare with?
- * No. Because we know the current character is *not* the same
- * as the previous one, the first test below will necessarily
- * fail and the send half of the "if" won't be executed.
- */
-
- /* Stuff_Diff: We have at least two *different* bytes encoded */
- case Stuff_Diff:
- /* If this is a zero, must encode a Stuff_DiffZero, and begin a new block */
- if (*src == 0) {
- StuffData_FinishBlock(Stuff_DiffZero +
- count);
- }
- /* else, if we have three in a row, it is worth starting a Stuff_Same block */
- else if ((*src ^ Stuff_Magic) == dst[-1]
- && dst[-1] == dst[-2]) {
- /* Back off the last two characters we encoded */
- code += count - 2;
- /* Note: "Stuff_Diff + 0" is an illegal code */
- if (code == Stuff_Diff + 0) {
- code = Stuff_Same + 0;
- }
- StuffData_FinishBlock(code);
- code_ptr = dst - 2;
- /* dst[-1] already holds the correct value */
- count = 2; /* 2 means three bytes encoded */
- code = Stuff_Same;
- }
- /* else, another different byte, so add it to the block */
- else {
- *dst++ = *src ^ Stuff_Magic;
- count++;
- }
- src++; /* Consume the byte */
- break;
- }
- if (count == Stuff_MaxCount) {
- StuffData_FinishBlock(code + count);
- }
- }
- if (code == Stuff_NoCode) {
- *code_ptr_ptr = NULL;
- } else {
- *code_ptr_ptr = code_ptr;
- StuffData_FinishBlock(code + count);
- }
- return (dst);
-}
-
-/*
- * UnStuffData decodes the data at "src", up to (but not including) "end".
- * It writes the decoded data into the buffer pointed to by "dst", up to a
- * maximum of "dst_length", and returns the new value of "src" so that a
- * follow-on call can read more data, continuing from where the first left off.
- *
- * There are three types of results:
- * 1. The source data runs out before extracting "dst_length" bytes:
- * UnStuffData returns NULL to indicate failure.
- * 2. The source data produces exactly "dst_length" bytes:
- * UnStuffData returns new_src = end to indicate that all bytes were consumed.
- * 3. "dst_length" bytes are extracted, with more remaining.
- * UnStuffData returns new_src < end to indicate that there are more bytes
- * to be read.
- *
- * Note: The decoding may be destructive, in that it may alter the source
- * data in the process of decoding it (this is necessary to allow a follow-on
- * call to resume correctly).
- */
-
-static __u8 *UnStuffData(__u8 * src, __u8 * end, __u8 * dst,
- __u32 dst_length)
-{
- __u8 *dst_end = dst + dst_length;
- /* Sanity check */
- if (!src || !end || !dst || !dst_length)
- return (NULL);
- while (src < end && dst < dst_end) {
- int count = (*src ^ Stuff_Magic) & Stuff_CountMask;
- switch ((*src ^ Stuff_Magic) & Stuff_CodeMask) {
- case Stuff_Diff:
- if (src + 1 + count >= end)
- return (NULL);
- do {
- *dst++ = *++src ^ Stuff_Magic;
- }
- while (--count >= 0 && dst < dst_end);
- if (count < 0)
- src += 1;
- else {
- if (count == 0)
- *src = Stuff_Same ^ Stuff_Magic;
- else
- *src =
- (Stuff_Diff +
- count) ^ Stuff_Magic;
- }
- break;
- case Stuff_DiffZero:
- if (src + 1 + count >= end)
- return (NULL);
- do {
- *dst++ = *++src ^ Stuff_Magic;
- }
- while (--count >= 0 && dst < dst_end);
- if (count < 0)
- *src = Stuff_Zero ^ Stuff_Magic;
- else
- *src =
- (Stuff_DiffZero + count) ^ Stuff_Magic;
- break;
- case Stuff_Same:
- if (src + 1 >= end)
- return (NULL);
- do {
- *dst++ = src[1] ^ Stuff_Magic;
- }
- while (--count >= 0 && dst < dst_end);
- if (count < 0)
- src += 2;
- else
- *src = (Stuff_Same + count) ^ Stuff_Magic;
- break;
- case Stuff_Zero:
- do {
- *dst++ = 0;
- }
- while (--count >= 0 && dst < dst_end);
- if (count < 0)
- src += 1;
- else
- *src = (Stuff_Zero + count) ^ Stuff_Magic;
- break;
- }
- }
- if (dst < dst_end)
- return (NULL);
- else
- return (src);
-}
-
-
-/************************************************************************/
-/* General routines for STRIP */
-
-/*
- * set_baud sets the baud rate to the rate defined by baudcode
- */
-static void set_baud(struct tty_struct *tty, speed_t baudrate)
-{
- struct ktermios old_termios;
-
- mutex_lock(&tty->termios_mutex);
- old_termios =*(tty->termios);
- tty_encode_baud_rate(tty, baudrate, baudrate);
- tty->ops->set_termios(tty, &old_termios);
- mutex_unlock(&tty->termios_mutex);
-}
-
-/*
- * Convert a string to a Metricom Address.
- */
-
-#define IS_RADIO_ADDRESS(p) ( \
- isdigit((p)[0]) && isdigit((p)[1]) && isdigit((p)[2]) && isdigit((p)[3]) && \
- (p)[4] == '-' && \
- isdigit((p)[5]) && isdigit((p)[6]) && isdigit((p)[7]) && isdigit((p)[8]) )
-
-static int string_to_radio_address(MetricomAddress * addr, __u8 * p)
-{
- if (!IS_RADIO_ADDRESS(p))
- return (1);
- addr->c[0] = 0;
- addr->c[1] = 0;
- addr->c[2] = READHEX(p[0]) << 4 | READHEX(p[1]);
- addr->c[3] = READHEX(p[2]) << 4 | READHEX(p[3]);
- addr->c[4] = READHEX(p[5]) << 4 | READHEX(p[6]);
- addr->c[5] = READHEX(p[7]) << 4 | READHEX(p[8]);
- return (0);
-}
-
-/*
- * Convert a Metricom Address to a string.
- */
-
-static __u8 *radio_address_to_string(const MetricomAddress * addr,
- MetricomAddressString * p)
-{
- sprintf(p->c, "%02X%02X-%02X%02X", addr->c[2], addr->c[3],
- addr->c[4], addr->c[5]);
- return (p->c);
-}
-
-/*
- * Note: Must make sure sx_size is big enough to receive a stuffed
- * MAX_RECV_MTU packet. Additionally, we also want to ensure that it's
- * big enough to receive a large radio neighbour list (currently 4K).
- */
-
-static int allocate_buffers(struct strip *strip_info, int mtu)
-{
- struct net_device *dev = strip_info->dev;
- int sx_size = max_t(int, STRIP_ENCAP_SIZE(MAX_RECV_MTU), 4096);
- int tx_size = STRIP_ENCAP_SIZE(mtu) + MaxCommandStringLength;
- __u8 *r = kmalloc(MAX_RECV_MTU, GFP_ATOMIC);
- __u8 *s = kmalloc(sx_size, GFP_ATOMIC);
- __u8 *t = kmalloc(tx_size, GFP_ATOMIC);
- if (r && s && t) {
- strip_info->rx_buff = r;
- strip_info->sx_buff = s;
- strip_info->tx_buff = t;
- strip_info->sx_size = sx_size;
- strip_info->tx_size = tx_size;
- strip_info->mtu = dev->mtu = mtu;
- return (1);
- }
- kfree(r);
- kfree(s);
- kfree(t);
- return (0);
-}
-
-/*
- * MTU has been changed by the IP layer.
- * We could be in
- * an upcall from the tty driver, or in an ip packet queue.
- */
-static int strip_change_mtu(struct net_device *dev, int new_mtu)
-{
- struct strip *strip_info = netdev_priv(dev);
- int old_mtu = strip_info->mtu;
- unsigned char *orbuff = strip_info->rx_buff;
- unsigned char *osbuff = strip_info->sx_buff;
- unsigned char *otbuff = strip_info->tx_buff;
-
- if (new_mtu > MAX_SEND_MTU) {
- printk(KERN_ERR
- "%s: MTU exceeds maximum allowable (%d), MTU change cancelled.\n",
- strip_info->dev->name, MAX_SEND_MTU);
- return -EINVAL;
- }
-
- spin_lock_bh(&strip_lock);
- if (!allocate_buffers(strip_info, new_mtu)) {
- printk(KERN_ERR "%s: unable to grow strip buffers, MTU change cancelled.\n",
- strip_info->dev->name);
- spin_unlock_bh(&strip_lock);
- return -ENOMEM;
- }
-
- if (strip_info->sx_count) {
- if (strip_info->sx_count <= strip_info->sx_size)
- memcpy(strip_info->sx_buff, osbuff,
- strip_info->sx_count);
- else {
- strip_info->discard = strip_info->sx_count;
- strip_info->rx_over_errors++;
- }
- }
-
- if (strip_info->tx_left) {
- if (strip_info->tx_left <= strip_info->tx_size)
- memcpy(strip_info->tx_buff, strip_info->tx_head,
- strip_info->tx_left);
- else {
- strip_info->tx_left = 0;
- strip_info->tx_dropped++;
- }
- }
- strip_info->tx_head = strip_info->tx_buff;
- spin_unlock_bh(&strip_lock);
-
- printk(KERN_NOTICE "%s: strip MTU changed fom %d to %d.\n",
- strip_info->dev->name, old_mtu, strip_info->mtu);
-
- kfree(orbuff);
- kfree(osbuff);
- kfree(otbuff);
- return 0;
-}
-
-static void strip_unlock(struct strip *strip_info)
-{
- /*
- * Set the timer to go off in one second.
- */
- strip_info->idle_timer.expires = jiffies + 1 * HZ;
- add_timer(&strip_info->idle_timer);
- netif_wake_queue(strip_info->dev);
-}
-
-
-
-/*
- * If the time is in the near future, time_delta prints the number of
- * seconds to go into the buffer and returns the address of the buffer.
- * If the time is not in the near future, it returns the address of the
- * string "Not scheduled" The buffer must be long enough to contain the
- * ascii representation of the number plus 9 charactes for the " seconds"
- * and the null character.
- */
-#ifdef CONFIG_PROC_FS
-static char *time_delta(char buffer[], long time)
-{
- time -= jiffies;
- if (time > LongTime / 2)
- return ("Not scheduled");
- if (time < 0)
- time = 0; /* Don't print negative times */
- sprintf(buffer, "%ld seconds", time / HZ);
- return (buffer);
-}
-
-/* get Nth element of the linked list */
-static struct strip *strip_get_idx(loff_t pos)
-{
- struct strip *str;
- int i = 0;
-
- list_for_each_entry_rcu(str, &strip_list, list) {
- if (pos == i)
- return str;
- ++i;
- }
- return NULL;
-}
-
-static void *strip_seq_start(struct seq_file *seq, loff_t *pos)
- __acquires(RCU)
-{
- rcu_read_lock();
- return *pos ? strip_get_idx(*pos - 1) : SEQ_START_TOKEN;
-}
-
-static void *strip_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
- struct list_head *l;
- struct strip *s;
-
- ++*pos;
- if (v == SEQ_START_TOKEN)
- return strip_get_idx(1);
-
- s = v;
- l = &s->list;
- list_for_each_continue_rcu(l, &strip_list) {
- return list_entry(l, struct strip, list);
- }
- return NULL;
-}
-
-static void strip_seq_stop(struct seq_file *seq, void *v)
- __releases(RCU)
-{
- rcu_read_unlock();
-}
-
-static void strip_seq_neighbours(struct seq_file *seq,
- const MetricomNodeTable * table,
- const char *title)
-{
- /* We wrap this in a do/while loop, so if the table changes */
- /* while we're reading it, we just go around and try again. */
- struct timeval t;
-
- do {
- int i;
- t = table->timestamp;
- if (table->num_nodes)
- seq_printf(seq, "\n %s\n", title);
- for (i = 0; i < table->num_nodes; i++) {
- MetricomNode node;
-
- spin_lock_bh(&strip_lock);
- node = table->node[i];
- spin_unlock_bh(&strip_lock);
- seq_printf(seq, " %s\n", node.c);
- }
- } while (table->timestamp.tv_sec != t.tv_sec
- || table->timestamp.tv_usec != t.tv_usec);
-}
-
-/*
- * This function prints radio status information via the seq_file
- * interface. The interface takes care of buffer size and over
- * run issues.
- *
- * The buffer in seq_file is PAGESIZE (4K)
- * so this routine should never print more or it will get truncated.
- * With the maximum of 32 portables and 32 poletops
- * reported, the routine outputs 3107 bytes into the buffer.
- */
-static void strip_seq_status_info(struct seq_file *seq,
- const struct strip *strip_info)
-{
- char temp[32];
- MetricomAddressString addr_string;
-
- /* First, we must copy all of our data to a safe place, */
- /* in case a serial interrupt comes in and changes it. */
- int tx_left = strip_info->tx_left;
- unsigned long rx_average_pps = strip_info->rx_average_pps;
- unsigned long tx_average_pps = strip_info->tx_average_pps;
- unsigned long sx_average_pps = strip_info->sx_average_pps;
- int working = strip_info->working;
- int firmware_level = strip_info->firmware_level;
- long watchdog_doprobe = strip_info->watchdog_doprobe;
- long watchdog_doreset = strip_info->watchdog_doreset;
- long gratuitous_arp = strip_info->gratuitous_arp;
- long arp_interval = strip_info->arp_interval;
- FirmwareVersion firmware_version = strip_info->firmware_version;
- SerialNumber serial_number = strip_info->serial_number;
- BatteryVoltage battery_voltage = strip_info->battery_voltage;
- char *if_name = strip_info->dev->name;
- MetricomAddress true_dev_addr = strip_info->true_dev_addr;
- MetricomAddress dev_dev_addr =
- *(MetricomAddress *) strip_info->dev->dev_addr;
- int manual_dev_addr = strip_info->manual_dev_addr;
-#ifdef EXT_COUNTERS
- unsigned long rx_bytes = strip_info->rx_bytes;
- unsigned long tx_bytes = strip_info->tx_bytes;
- unsigned long rx_rbytes = strip_info->rx_rbytes;
- unsigned long tx_rbytes = strip_info->tx_rbytes;
- unsigned long rx_sbytes = strip_info->rx_sbytes;
- unsigned long tx_sbytes = strip_info->tx_sbytes;
- unsigned long rx_ebytes = strip_info->rx_ebytes;
- unsigned long tx_ebytes = strip_info->tx_ebytes;
-#endif
-
- seq_printf(seq, "\nInterface name\t\t%s\n", if_name);
- seq_printf(seq, " Radio working:\t\t%s\n", working ? "Yes" : "No");
- radio_address_to_string(&true_dev_addr, &addr_string);
- seq_printf(seq, " Radio address:\t\t%s\n", addr_string.c);
- if (manual_dev_addr) {
- radio_address_to_string(&dev_dev_addr, &addr_string);
- seq_printf(seq, " Device address:\t%s\n", addr_string.c);
- }
- seq_printf(seq, " Firmware version:\t%s", !working ? "Unknown" :
- !firmware_level ? "Should be upgraded" :
- firmware_version.c);
- if (firmware_level >= ChecksummedMessages)
- seq_printf(seq, " (Checksums Enabled)");
- seq_printf(seq, "\n");
- seq_printf(seq, " Serial number:\t\t%s\n", serial_number.c);
- seq_printf(seq, " Battery voltage:\t%s\n", battery_voltage.c);
- seq_printf(seq, " Transmit queue (bytes):%d\n", tx_left);
- seq_printf(seq, " Receive packet rate: %ld packets per second\n",
- rx_average_pps / 8);
- seq_printf(seq, " Transmit packet rate: %ld packets per second\n",
- tx_average_pps / 8);
- seq_printf(seq, " Sent packet rate: %ld packets per second\n",
- sx_average_pps / 8);
- seq_printf(seq, " Next watchdog probe:\t%s\n",
- time_delta(temp, watchdog_doprobe));
- seq_printf(seq, " Next watchdog reset:\t%s\n",
- time_delta(temp, watchdog_doreset));
- seq_printf(seq, " Next gratuitous ARP:\t");
-
- if (!memcmp
- (strip_info->dev->dev_addr, zero_address.c,
- sizeof(zero_address)))
- seq_printf(seq, "Disabled\n");
- else {
- seq_printf(seq, "%s\n", time_delta(temp, gratuitous_arp));
- seq_printf(seq, " Next ARP interval:\t%ld seconds\n",
- JIFFIE_TO_SEC(arp_interval));
- }
-
- if (working) {
-#ifdef EXT_COUNTERS
- seq_printf(seq, "\n");
- seq_printf(seq,
- " Total bytes: \trx:\t%lu\ttx:\t%lu\n",
- rx_bytes, tx_bytes);
- seq_printf(seq,
- " thru radio: \trx:\t%lu\ttx:\t%lu\n",
- rx_rbytes, tx_rbytes);
- seq_printf(seq,
- " thru serial port: \trx:\t%lu\ttx:\t%lu\n",
- rx_sbytes, tx_sbytes);
- seq_printf(seq,
- " Total stat/err bytes:\trx:\t%lu\ttx:\t%lu\n",
- rx_ebytes, tx_ebytes);
-#endif
- strip_seq_neighbours(seq, &strip_info->poletops,
- "Poletops:");
- strip_seq_neighbours(seq, &strip_info->portables,
- "Portables:");
- }
-}
-
-/*
- * This function is exports status information from the STRIP driver through
- * the /proc file system.
- */
-static int strip_seq_show(struct seq_file *seq, void *v)
-{
- if (v == SEQ_START_TOKEN)
- seq_printf(seq, "strip_version: %s\n", StripVersion);
- else
- strip_seq_status_info(seq, (const struct strip *)v);
- return 0;
-}
-
-
-static const struct seq_operations strip_seq_ops = {
- .start = strip_seq_start,
- .next = strip_seq_next,
- .stop = strip_seq_stop,
- .show = strip_seq_show,
-};
-
-static int strip_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &strip_seq_ops);
-}
-
-static const struct file_operations strip_seq_fops = {
- .owner = THIS_MODULE,
- .open = strip_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-#endif
-
-
-
-/************************************************************************/
-/* Sending routines */
-
-static void ResetRadio(struct strip *strip_info)
-{
- struct tty_struct *tty = strip_info->tty;
- static const char init[] = "ate0q1dt**starmode\r**";
- StringDescriptor s = { init, sizeof(init) - 1 };
-
- /*
- * If the radio isn't working anymore,
- * we should clear the old status information.
- */
- if (strip_info->working) {
- printk(KERN_INFO "%s: No response: Resetting radio.\n",
- strip_info->dev->name);
- strip_info->firmware_version.c[0] = '\0';
- strip_info->serial_number.c[0] = '\0';
- strip_info->battery_voltage.c[0] = '\0';
- strip_info->portables.num_nodes = 0;
- do_gettimeofday(&strip_info->portables.timestamp);
- strip_info->poletops.num_nodes = 0;
- do_gettimeofday(&strip_info->poletops.timestamp);
- }
-
- strip_info->pps_timer = jiffies;
- strip_info->rx_pps_count = 0;
- strip_info->tx_pps_count = 0;
- strip_info->sx_pps_count = 0;
- strip_info->rx_average_pps = 0;
- strip_info->tx_average_pps = 0;
- strip_info->sx_average_pps = 0;
-
- /* Mark radio address as unknown */
- *(MetricomAddress *) & strip_info->true_dev_addr = zero_address;
- if (!strip_info->manual_dev_addr)
- *(MetricomAddress *) strip_info->dev->dev_addr =
- zero_address;
- strip_info->working = FALSE;
- strip_info->firmware_level = NoStructure;
- strip_info->next_command = CompatibilityCommand;
- strip_info->watchdog_doprobe = jiffies + 10 * HZ;
- strip_info->watchdog_doreset = jiffies + 1 * HZ;
-
- /* If the user has selected a baud rate above 38.4 see what magic we have to do */
- if (strip_info->user_baud > 38400) {
- /*
- * Subtle stuff: Pay attention :-)
- * If the serial port is currently at the user's selected (>38.4) rate,
- * then we temporarily switch to 19.2 and issue the ATS304 command
- * to tell the radio to switch to the user's selected rate.
- * If the serial port is not currently at that rate, that means we just
- * issued the ATS304 command last time through, so this time we restore
- * the user's selected rate and issue the normal starmode reset string.
- */
- if (strip_info->user_baud == tty_get_baud_rate(tty)) {
- static const char b0[] = "ate0q1s304=57600\r";
- static const char b1[] = "ate0q1s304=115200\r";
- static const StringDescriptor baudstring[2] =
- { {b0, sizeof(b0) - 1}
- , {b1, sizeof(b1) - 1}
- };
- set_baud(tty, 19200);
- if (strip_info->user_baud == 57600)
- s = baudstring[0];
- else if (strip_info->user_baud == 115200)
- s = baudstring[1];
- else
- s = baudstring[1]; /* For now */
- } else
- set_baud(tty, strip_info->user_baud);
- }
-
- tty->ops->write(tty, s.string, s.length);
-#ifdef EXT_COUNTERS
- strip_info->tx_ebytes += s.length;
-#endif
-}
-
-/*
- * Called by the driver when there's room for more data. If we have
- * more packets to send, we send them here.
- */
-
-static void strip_write_some_more(struct tty_struct *tty)
-{
- struct strip *strip_info = tty->disc_data;
-
- /* First make sure we're connected. */
- if (!strip_info || strip_info->magic != STRIP_MAGIC ||
- !netif_running(strip_info->dev))
- return;
-
- if (strip_info->tx_left > 0) {
- int num_written =
- tty->ops->write(tty, strip_info->tx_head,
- strip_info->tx_left);
- strip_info->tx_left -= num_written;
- strip_info->tx_head += num_written;
-#ifdef EXT_COUNTERS
- strip_info->tx_sbytes += num_written;
-#endif
- } else { /* Else start transmission of another packet */
-
- clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
- strip_unlock(strip_info);
- }
-}
-
-static __u8 *add_checksum(__u8 * buffer, __u8 * end)
-{
- __u16 sum = 0;
- __u8 *p = buffer;
- while (p < end)
- sum += *p++;
- end[3] = hextable[sum & 0xF];
- sum >>= 4;
- end[2] = hextable[sum & 0xF];
- sum >>= 4;
- end[1] = hextable[sum & 0xF];
- sum >>= 4;
- end[0] = hextable[sum & 0xF];
- return (end + 4);
-}
-
-static unsigned char *strip_make_packet(unsigned char *buffer,
- struct strip *strip_info,
- struct sk_buff *skb)
-{
- __u8 *ptr = buffer;
- __u8 *stuffstate = NULL;
- STRIP_Header *header = (STRIP_Header *) skb->data;
- MetricomAddress haddr = header->dst_addr;
- int len = skb->len - sizeof(STRIP_Header);
- MetricomKey key;
-
- /*HexDump("strip_make_packet", strip_info, skb->data, skb->data + skb->len); */
-
- if (header->protocol == htons(ETH_P_IP))
- key = SIP0Key;
- else if (header->protocol == htons(ETH_P_ARP))
- key = ARP0Key;
- else {
- printk(KERN_ERR
- "%s: strip_make_packet: Unknown packet type 0x%04X\n",
- strip_info->dev->name, ntohs(header->protocol));
- return (NULL);
- }
-
- if (len > strip_info->mtu) {
- printk(KERN_ERR
- "%s: Dropping oversized transmit packet: %d bytes\n",
- strip_info->dev->name, len);
- return (NULL);
- }
-
- /*
- * If we're sending to ourselves, discard the packet.
- * (Metricom radios choke if they try to send a packet to their own address.)
- */
- if (!memcmp(haddr.c, strip_info->true_dev_addr.c, sizeof(haddr))) {
- printk(KERN_ERR "%s: Dropping packet addressed to self\n",
- strip_info->dev->name);
- return (NULL);
- }
-
- /*
- * If this is a broadcast packet, send it to our designated Metricom
- * 'broadcast hub' radio (First byte of address being 0xFF means broadcast)
- */
- if (haddr.c[0] == 0xFF) {
- __be32 brd = 0;
- struct in_device *in_dev;
-
- rcu_read_lock();
- in_dev = __in_dev_get_rcu(strip_info->dev);
- if (in_dev == NULL) {
- rcu_read_unlock();
- return NULL;
- }
- if (in_dev->ifa_list)
- brd = in_dev->ifa_list->ifa_broadcast;
- rcu_read_unlock();
-
- /* arp_query returns 1 if it succeeds in looking up the address, 0 if it fails */
- if (!arp_query(haddr.c, brd, strip_info->dev)) {
- printk(KERN_ERR
- "%s: Unable to send packet (no broadcast hub configured)\n",
- strip_info->dev->name);
- return (NULL);
- }
- /*
- * If we are the broadcast hub, don't bother sending to ourselves.
- * (Metricom radios choke if they try to send a packet to their own address.)
- */
- if (!memcmp
- (haddr.c, strip_info->true_dev_addr.c, sizeof(haddr)))
- return (NULL);
- }
-
- *ptr++ = 0x0D;
- *ptr++ = '*';
- *ptr++ = hextable[haddr.c[2] >> 4];
- *ptr++ = hextable[haddr.c[2] & 0xF];
- *ptr++ = hextable[haddr.c[3] >> 4];
- *ptr++ = hextable[haddr.c[3] & 0xF];
- *ptr++ = '-';
- *ptr++ = hextable[haddr.c[4] >> 4];
- *ptr++ = hextable[haddr.c[4] & 0xF];
- *ptr++ = hextable[haddr.c[5] >> 4];
- *ptr++ = hextable[haddr.c[5] & 0xF];
- *ptr++ = '*';
- *ptr++ = key.c[0];
- *ptr++ = key.c[1];
- *ptr++ = key.c[2];
- *ptr++ = key.c[3];
-
- ptr =
- StuffData(skb->data + sizeof(STRIP_Header), len, ptr,
- &stuffstate);
-
- if (strip_info->firmware_level >= ChecksummedMessages)
- ptr = add_checksum(buffer + 1, ptr);
-
- *ptr++ = 0x0D;
- return (ptr);
-}
-
-static void strip_send(struct strip *strip_info, struct sk_buff *skb)
-{
- MetricomAddress haddr;
- unsigned char *ptr = strip_info->tx_buff;
- int doreset = (long) jiffies - strip_info->watchdog_doreset >= 0;
- int doprobe = (long) jiffies - strip_info->watchdog_doprobe >= 0
- && !doreset;
- __be32 addr, brd;
-
- /*
- * 1. If we have a packet, encapsulate it and put it in the buffer
- */
- if (skb) {
- char *newptr = strip_make_packet(ptr, strip_info, skb);
- strip_info->tx_pps_count++;
- if (!newptr)
- strip_info->tx_dropped++;
- else {
- ptr = newptr;
- strip_info->sx_pps_count++;
- strip_info->tx_packets++; /* Count another successful packet */
-#ifdef EXT_COUNTERS
- strip_info->tx_bytes += skb->len;
- strip_info->tx_rbytes += ptr - strip_info->tx_buff;
-#endif
- /*DumpData("Sending:", strip_info, strip_info->tx_buff, ptr); */
- /*HexDump("Sending", strip_info, strip_info->tx_buff, ptr); */
- }
- }
-
- /*
- * 2. If it is time for another tickle, tack it on, after the packet
- */
- if (doprobe) {
- StringDescriptor ts = CommandString[strip_info->next_command];
-#if TICKLE_TIMERS
- {
- struct timeval tv;
- do_gettimeofday(&tv);
- printk(KERN_INFO "**** Sending tickle string %d at %02d.%06d\n",
- strip_info->next_command, tv.tv_sec % 100,
- tv.tv_usec);
- }
-#endif
- if (ptr == strip_info->tx_buff)
- *ptr++ = 0x0D;
-
- *ptr++ = '*'; /* First send "**" to provoke an error message */
- *ptr++ = '*';
-
- /* Then add the command */
- memcpy(ptr, ts.string, ts.length);
-
- /* Add a checksum ? */
- if (strip_info->firmware_level < ChecksummedMessages)
- ptr += ts.length;
- else
- ptr = add_checksum(ptr, ptr + ts.length);
-
- *ptr++ = 0x0D; /* Terminate the command with a <CR> */
-
- /* Cycle to next periodic command? */
- if (strip_info->firmware_level >= StructuredMessages)
- if (++strip_info->next_command >=
- ARRAY_SIZE(CommandString))
- strip_info->next_command = 0;
-#ifdef EXT_COUNTERS
- strip_info->tx_ebytes += ts.length;
-#endif
- strip_info->watchdog_doprobe = jiffies + 10 * HZ;
- strip_info->watchdog_doreset = jiffies + 1 * HZ;
- /*printk(KERN_INFO "%s: Routine radio test.\n", strip_info->dev->name); */
- }
-
- /*
- * 3. Set up the strip_info ready to send the data (if any).
- */
- strip_info->tx_head = strip_info->tx_buff;
- strip_info->tx_left = ptr - strip_info->tx_buff;
- set_bit(TTY_DO_WRITE_WAKEUP, &strip_info->tty->flags);
- /*
- * 4. Debugging check to make sure we're not overflowing the buffer.
- */
- if (strip_info->tx_size - strip_info->tx_left < 20)
- printk(KERN_ERR "%s: Sending%5d bytes;%5d bytes free.\n",
- strip_info->dev->name, strip_info->tx_left,
- strip_info->tx_size - strip_info->tx_left);
-
- /*
- * 5. If watchdog has expired, reset the radio. Note: if there's data waiting in
- * the buffer, strip_write_some_more will send it after the reset has finished
- */
- if (doreset) {
- ResetRadio(strip_info);
- return;
- }
-
- if (1) {
- struct in_device *in_dev;
-
- brd = addr = 0;
- rcu_read_lock();
- in_dev = __in_dev_get_rcu(strip_info->dev);
- if (in_dev) {
- if (in_dev->ifa_list) {
- brd = in_dev->ifa_list->ifa_broadcast;
- addr = in_dev->ifa_list->ifa_local;
- }
- }
- rcu_read_unlock();
- }
-
-
- /*
- * 6. If it is time for a periodic ARP, queue one up to be sent.
- * We only do this if:
- * 1. The radio is working
- * 2. It's time to send another periodic ARP
- * 3. We really know what our address is (and it is not manually set to zero)
- * 4. We have a designated broadcast address configured
- * If we queue up an ARP packet when we don't have a designated broadcast
- * address configured, then the packet will just have to be discarded in
- * strip_make_packet. This is not fatal, but it causes misleading information
- * to be displayed in tcpdump. tcpdump will report that periodic APRs are
- * being sent, when in fact they are not, because they are all being dropped
- * in the strip_make_packet routine.
- */
- if (strip_info->working
- && (long) jiffies - strip_info->gratuitous_arp >= 0
- && memcmp(strip_info->dev->dev_addr, zero_address.c,
- sizeof(zero_address))
- && arp_query(haddr.c, brd, strip_info->dev)) {
- /*printk(KERN_INFO "%s: Sending gratuitous ARP with interval %ld\n",
- strip_info->dev->name, strip_info->arp_interval / HZ); */
- strip_info->gratuitous_arp =
- jiffies + strip_info->arp_interval;
- strip_info->arp_interval *= 2;
- if (strip_info->arp_interval > MaxARPInterval)
- strip_info->arp_interval = MaxARPInterval;
- if (addr)
- arp_send(ARPOP_REPLY, ETH_P_ARP, addr, /* Target address of ARP packet is our address */
- strip_info->dev, /* Device to send packet on */
- addr, /* Source IP address this ARP packet comes from */
- NULL, /* Destination HW address is NULL (broadcast it) */
- strip_info->dev->dev_addr, /* Source HW address is our HW address */
- strip_info->dev->dev_addr); /* Target HW address is our HW address (redundant) */
- }
-
- /*
- * 7. All ready. Start the transmission
- */
- strip_write_some_more(strip_info->tty);
-}
-
-/* Encapsulate a datagram and kick it into a TTY queue. */
-static netdev_tx_t strip_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct strip *strip_info = netdev_priv(dev);
-
- if (!netif_running(dev)) {
- printk(KERN_ERR "%s: xmit call when iface is down\n",
- dev->name);
- return NETDEV_TX_BUSY;
- }
-
- netif_stop_queue(dev);
-
- del_timer(&strip_info->idle_timer);
-
-
- if (time_after(jiffies, strip_info->pps_timer + HZ)) {
- unsigned long t = jiffies - strip_info->pps_timer;
- unsigned long rx_pps_count =
- DIV_ROUND_CLOSEST(strip_info->rx_pps_count*HZ*8, t);
- unsigned long tx_pps_count =
- DIV_ROUND_CLOSEST(strip_info->tx_pps_count*HZ*8, t);
- unsigned long sx_pps_count =
- DIV_ROUND_CLOSEST(strip_info->sx_pps_count*HZ*8, t);
-
- strip_info->pps_timer = jiffies;
- strip_info->rx_pps_count = 0;
- strip_info->tx_pps_count = 0;
- strip_info->sx_pps_count = 0;
-
- strip_info->rx_average_pps = (strip_info->rx_average_pps + rx_pps_count + 1) / 2;
- strip_info->tx_average_pps = (strip_info->tx_average_pps + tx_pps_count + 1) / 2;
- strip_info->sx_average_pps = (strip_info->sx_average_pps + sx_pps_count + 1) / 2;
-
- if (rx_pps_count / 8 >= 10)
- printk(KERN_INFO "%s: WARNING: Receiving %ld packets per second.\n",
- strip_info->dev->name, rx_pps_count / 8);
- if (tx_pps_count / 8 >= 10)
- printk(KERN_INFO "%s: WARNING: Tx %ld packets per second.\n",
- strip_info->dev->name, tx_pps_count / 8);
- if (sx_pps_count / 8 >= 10)
- printk(KERN_INFO "%s: WARNING: Sending %ld packets per second.\n",
- strip_info->dev->name, sx_pps_count / 8);
- }
-
- spin_lock_bh(&strip_lock);
-
- strip_send(strip_info, skb);
-
- spin_unlock_bh(&strip_lock);
-
- if (skb)
- dev_kfree_skb(skb);
- return NETDEV_TX_OK;
-}
-
-/*
- * IdleTask periodically calls strip_xmit, so even when we have no IP packets
- * to send for an extended period of time, the watchdog processing still gets
- * done to ensure that the radio stays in Starmode
- */
-
-static void strip_IdleTask(unsigned long parameter)
-{
- strip_xmit(NULL, (struct net_device *) parameter);
-}
-
-/*
- * Create the MAC header for an arbitrary protocol layer
- *
- * saddr!=NULL means use this specific address (n/a for Metricom)
- * saddr==NULL means use default device source address
- * daddr!=NULL means use this destination address
- * daddr==NULL means leave destination address alone
- * (e.g. unresolved arp -- kernel will call
- * rebuild_header later to fill in the address)
- */
-
-static int strip_header(struct sk_buff *skb, struct net_device *dev,
- unsigned short type, const void *daddr,
- const void *saddr, unsigned len)
-{
- struct strip *strip_info = netdev_priv(dev);
- STRIP_Header *header = (STRIP_Header *) skb_push(skb, sizeof(STRIP_Header));
-
- /*printk(KERN_INFO "%s: strip_header 0x%04X %s\n", dev->name, type,
- type == ETH_P_IP ? "IP" : type == ETH_P_ARP ? "ARP" : ""); */
-
- header->src_addr = strip_info->true_dev_addr;
- header->protocol = htons(type);
-
- /*HexDump("strip_header", netdev_priv(dev), skb->data, skb->data + skb->len); */
-
- if (!daddr)
- return (-dev->hard_header_len);
-
- header->dst_addr = *(MetricomAddress *) daddr;
- return (dev->hard_header_len);
-}
-
-/*
- * Rebuild the MAC header. This is called after an ARP
- * (or in future other address resolution) has completed on this
- * sk_buff. We now let ARP fill in the other fields.
- * I think this should return zero if packet is ready to send,
- * or non-zero if it needs more time to do an address lookup
- */
-
-static int strip_rebuild_header(struct sk_buff *skb)
-{
-#ifdef CONFIG_INET
- STRIP_Header *header = (STRIP_Header *) skb->data;
-
- /* Arp find returns zero if if knows the address, */
- /* or if it doesn't know the address it sends an ARP packet and returns non-zero */
- return arp_find(header->dst_addr.c, skb) ? 1 : 0;
-#else
- return 0;
-#endif
-}
-
-
-/************************************************************************/
-/* Receiving routines */
-
-/*
- * This function parses the response to the ATS300? command,
- * extracting the radio version and serial number.
- */
-static void get_radio_version(struct strip *strip_info, __u8 * ptr, __u8 * end)
-{
- __u8 *p, *value_begin, *value_end;
- int len;
-
- /* Determine the beginning of the second line of the payload */
- p = ptr;
- while (p < end && *p != 10)
- p++;
- if (p >= end)
- return;
- p++;
- value_begin = p;
-
- /* Determine the end of line */
- while (p < end && *p != 10)
- p++;
- if (p >= end)
- return;
- value_end = p;
- p++;
-
- len = value_end - value_begin;
- len = min_t(int, len, sizeof(FirmwareVersion) - 1);
- if (strip_info->firmware_version.c[0] == 0)
- printk(KERN_INFO "%s: Radio Firmware: %.*s\n",
- strip_info->dev->name, len, value_begin);
- sprintf(strip_info->firmware_version.c, "%.*s", len, value_begin);
-
- /* Look for the first colon */
- while (p < end && *p != ':')
- p++;
- if (p >= end)
- return;
- /* Skip over the space */
- p += 2;
- len = sizeof(SerialNumber) - 1;
- if (p + len <= end) {
- sprintf(strip_info->serial_number.c, "%.*s", len, p);
- } else {
- printk(KERN_DEBUG
- "STRIP: radio serial number shorter (%zd) than expected (%d)\n",
- end - p, len);
- }
-}
-
-/*
- * This function parses the response to the ATS325? command,
- * extracting the radio battery voltage.
- */
-static void get_radio_voltage(struct strip *strip_info, __u8 * ptr, __u8 * end)
-{
- int len;
-
- len = sizeof(BatteryVoltage) - 1;
- if (ptr + len <= end) {
- sprintf(strip_info->battery_voltage.c, "%.*s", len, ptr);
- } else {
- printk(KERN_DEBUG
- "STRIP: radio voltage string shorter (%zd) than expected (%d)\n",
- end - ptr, len);
- }
-}
-
-/*
- * This function parses the responses to the AT~LA and ATS311 commands,
- * which list the radio's neighbours.
- */
-static void get_radio_neighbours(MetricomNodeTable * table, __u8 * ptr, __u8 * end)
-{
- table->num_nodes = 0;
- while (ptr < end && table->num_nodes < NODE_TABLE_SIZE) {
- MetricomNode *node = &table->node[table->num_nodes++];
- char *dst = node->c, *limit = dst + sizeof(*node) - 1;
- while (ptr < end && *ptr <= 32)
- ptr++;
- while (ptr < end && dst < limit && *ptr != 10)
- *dst++ = *ptr++;
- *dst++ = 0;
- while (ptr < end && ptr[-1] != 10)
- ptr++;
- }
- do_gettimeofday(&table->timestamp);
-}
-
-static int get_radio_address(struct strip *strip_info, __u8 * p)
-{
- MetricomAddress addr;
-
- if (string_to_radio_address(&addr, p))
- return (1);
-
- /* See if our radio address has changed */
- if (memcmp(strip_info->true_dev_addr.c, addr.c, sizeof(addr))) {
- MetricomAddressString addr_string;
- radio_address_to_string(&addr, &addr_string);
- printk(KERN_INFO "%s: Radio address = %s\n",
- strip_info->dev->name, addr_string.c);
- strip_info->true_dev_addr = addr;
- if (!strip_info->manual_dev_addr)
- *(MetricomAddress *) strip_info->dev->dev_addr =
- addr;
- /* Give the radio a few seconds to get its head straight, then send an arp */
- strip_info->gratuitous_arp = jiffies + 15 * HZ;
- strip_info->arp_interval = 1 * HZ;
- }
- return (0);
-}
-
-static int verify_checksum(struct strip *strip_info)
-{
- __u8 *p = strip_info->sx_buff;
- __u8 *end = strip_info->sx_buff + strip_info->sx_count - 4;
- u_short sum =
- (READHEX16(end[0]) << 12) | (READHEX16(end[1]) << 8) |
- (READHEX16(end[2]) << 4) | (READHEX16(end[3]));
- while (p < end)
- sum -= *p++;
- if (sum == 0 && strip_info->firmware_level == StructuredMessages) {
- strip_info->firmware_level = ChecksummedMessages;
- printk(KERN_INFO "%s: Radio provides message checksums\n",
- strip_info->dev->name);
- }
- return (sum == 0);
-}
-
-static void RecvErr(char *msg, struct strip *strip_info)
-{
- __u8 *ptr = strip_info->sx_buff;
- __u8 *end = strip_info->sx_buff + strip_info->sx_count;
- DumpData(msg, strip_info, ptr, end);
- strip_info->rx_errors++;
-}
-
-static void RecvErr_Message(struct strip *strip_info, __u8 * sendername,
- const __u8 * msg, u_long len)
-{
- if (has_prefix(msg, len, "001")) { /* Not in StarMode! */
- RecvErr("Error Msg:", strip_info);
- printk(KERN_INFO "%s: Radio %s is not in StarMode\n",
- strip_info->dev->name, sendername);
- }
-
- else if (has_prefix(msg, len, "002")) { /* Remap handle */
- /* We ignore "Remap handle" messages for now */
- }
-
- else if (has_prefix(msg, len, "003")) { /* Can't resolve name */
- RecvErr("Error Msg:", strip_info);
- printk(KERN_INFO "%s: Destination radio name is unknown\n",
- strip_info->dev->name);
- }
-
- else if (has_prefix(msg, len, "004")) { /* Name too small or missing */
- strip_info->watchdog_doreset = jiffies + LongTime;
-#if TICKLE_TIMERS
- {
- struct timeval tv;
- do_gettimeofday(&tv);
- printk(KERN_INFO
- "**** Got ERR_004 response at %02d.%06d\n",
- tv.tv_sec % 100, tv.tv_usec);
- }
-#endif
- if (!strip_info->working) {
- strip_info->working = TRUE;
- printk(KERN_INFO "%s: Radio now in starmode\n",
- strip_info->dev->name);
- /*
- * If the radio has just entered a working state, we should do our first
- * probe ASAP, so that we find out our radio address etc. without delay.
- */
- strip_info->watchdog_doprobe = jiffies;
- }
- if (strip_info->firmware_level == NoStructure && sendername) {
- strip_info->firmware_level = StructuredMessages;
- strip_info->next_command = 0; /* Try to enable checksums ASAP */
- printk(KERN_INFO
- "%s: Radio provides structured messages\n",
- strip_info->dev->name);
- }
- if (strip_info->firmware_level >= StructuredMessages) {
- /*
- * If this message has a valid checksum on the end, then the call to verify_checksum
- * will elevate the firmware_level to ChecksummedMessages for us. (The actual return
- * code from verify_checksum is ignored here.)
- */
- verify_checksum(strip_info);
- /*
- * If the radio has structured messages but we don't yet have all our information about it,
- * we should do probes without delay, until we have gathered all the information
- */
- if (!GOT_ALL_RADIO_INFO(strip_info))
- strip_info->watchdog_doprobe = jiffies;
- }
- }
-
- else if (has_prefix(msg, len, "005")) /* Bad count specification */
- RecvErr("Error Msg:", strip_info);
-
- else if (has_prefix(msg, len, "006")) /* Header too big */
- RecvErr("Error Msg:", strip_info);
-
- else if (has_prefix(msg, len, "007")) { /* Body too big */
- RecvErr("Error Msg:", strip_info);
- printk(KERN_ERR
- "%s: Error! Packet size too big for radio.\n",
- strip_info->dev->name);
- }
-
- else if (has_prefix(msg, len, "008")) { /* Bad character in name */
- RecvErr("Error Msg:", strip_info);
- printk(KERN_ERR
- "%s: Radio name contains illegal character\n",
- strip_info->dev->name);
- }
-
- else if (has_prefix(msg, len, "009")) /* No count or line terminator */
- RecvErr("Error Msg:", strip_info);
-
- else if (has_prefix(msg, len, "010")) /* Invalid checksum */
- RecvErr("Error Msg:", strip_info);
-
- else if (has_prefix(msg, len, "011")) /* Checksum didn't match */
- RecvErr("Error Msg:", strip_info);
-
- else if (has_prefix(msg, len, "012")) /* Failed to transmit packet */
- RecvErr("Error Msg:", strip_info);
-
- else
- RecvErr("Error Msg:", strip_info);
-}
-
-static void process_AT_response(struct strip *strip_info, __u8 * ptr,
- __u8 * end)
-{
- u_long len;
- __u8 *p = ptr;
- while (p < end && p[-1] != 10)
- p++; /* Skip past first newline character */
- /* Now ptr points to the AT command, and p points to the text of the response. */
- len = p - ptr;
-
-#if TICKLE_TIMERS
- {
- struct timeval tv;
- do_gettimeofday(&tv);
- printk(KERN_INFO "**** Got AT response %.7s at %02d.%06d\n",
- ptr, tv.tv_sec % 100, tv.tv_usec);
- }
-#endif
-
- if (has_prefix(ptr, len, "ATS300?"))
- get_radio_version(strip_info, p, end);
- else if (has_prefix(ptr, len, "ATS305?"))
- get_radio_address(strip_info, p);
- else if (has_prefix(ptr, len, "ATS311?"))
- get_radio_neighbours(&strip_info->poletops, p, end);
- else if (has_prefix(ptr, len, "ATS319=7"))
- verify_checksum(strip_info);
- else if (has_prefix(ptr, len, "ATS325?"))
- get_radio_voltage(strip_info, p, end);
- else if (has_prefix(ptr, len, "AT~LA"))
- get_radio_neighbours(&strip_info->portables, p, end);
- else
- RecvErr("Unknown AT Response:", strip_info);
-}
-
-static void process_ACK(struct strip *strip_info, __u8 * ptr, __u8 * end)
-{
- /* Currently we don't do anything with ACKs from the radio */
-}
-
-static void process_Info(struct strip *strip_info, __u8 * ptr, __u8 * end)
-{
- if (ptr + 16 > end)
- RecvErr("Bad Info Msg:", strip_info);
-}
-
-static struct net_device *get_strip_dev(struct strip *strip_info)
-{
- /* If our hardware address is *manually set* to zero, and we know our */
- /* real radio hardware address, try to find another strip device that has been */
- /* manually set to that address that we can 'transfer ownership' of this packet to */
- if (strip_info->manual_dev_addr &&
- !memcmp(strip_info->dev->dev_addr, zero_address.c,
- sizeof(zero_address))
- && memcmp(&strip_info->true_dev_addr, zero_address.c,
- sizeof(zero_address))) {
- struct net_device *dev;
- read_lock_bh(&dev_base_lock);
- for_each_netdev(&init_net, dev) {
- if (dev->type == strip_info->dev->type &&
- !memcmp(dev->dev_addr,
- &strip_info->true_dev_addr,
- sizeof(MetricomAddress))) {
- printk(KERN_INFO
- "%s: Transferred packet ownership to %s.\n",
- strip_info->dev->name, dev->name);
- read_unlock_bh(&dev_base_lock);
- return (dev);
- }
- }
- read_unlock_bh(&dev_base_lock);
- }
- return (strip_info->dev);
-}
-
-/*
- * Send one completely decapsulated datagram to the next layer.
- */
-
-static void deliver_packet(struct strip *strip_info, STRIP_Header * header,
- __u16 packetlen)
-{
- struct sk_buff *skb = dev_alloc_skb(sizeof(STRIP_Header) + packetlen);
- if (!skb) {
- printk(KERN_ERR "%s: memory squeeze, dropping packet.\n",
- strip_info->dev->name);
- strip_info->rx_dropped++;
- } else {
- memcpy(skb_put(skb, sizeof(STRIP_Header)), header,
- sizeof(STRIP_Header));
- memcpy(skb_put(skb, packetlen), strip_info->rx_buff,
- packetlen);
- skb->dev = get_strip_dev(strip_info);
- skb->protocol = header->protocol;
- skb_reset_mac_header(skb);
-
- /* Having put a fake header on the front of the sk_buff for the */
- /* benefit of tools like tcpdump, skb_pull now 'consumes' that */
- /* fake header before we hand the packet up to the next layer. */
- skb_pull(skb, sizeof(STRIP_Header));
-
- /* Finally, hand the packet up to the next layer (e.g. IP or ARP, etc.) */
- strip_info->rx_packets++;
- strip_info->rx_pps_count++;
-#ifdef EXT_COUNTERS
- strip_info->rx_bytes += packetlen;
-#endif
- netif_rx(skb);
- }
-}
-
-static void process_IP_packet(struct strip *strip_info,
- STRIP_Header * header, __u8 * ptr,
- __u8 * end)
-{
- __u16 packetlen;
-
- /* Decode start of the IP packet header */
- ptr = UnStuffData(ptr, end, strip_info->rx_buff, 4);
- if (!ptr) {
- RecvErr("IP Packet too short", strip_info);
- return;
- }
-
- packetlen = ((__u16) strip_info->rx_buff[2] << 8) | strip_info->rx_buff[3];
-
- if (packetlen > MAX_RECV_MTU) {
- printk(KERN_INFO "%s: Dropping oversized received IP packet: %d bytes\n",
- strip_info->dev->name, packetlen);
- strip_info->rx_dropped++;
- return;
- }
-
- /*printk(KERN_INFO "%s: Got %d byte IP packet\n", strip_info->dev->name, packetlen); */
-
- /* Decode remainder of the IP packet */
- ptr =
- UnStuffData(ptr, end, strip_info->rx_buff + 4, packetlen - 4);
- if (!ptr) {
- RecvErr("IP Packet too short", strip_info);
- return;
- }
-
- if (ptr < end) {
- RecvErr("IP Packet too long", strip_info);
- return;
- }
-
- header->protocol = htons(ETH_P_IP);
-
- deliver_packet(strip_info, header, packetlen);
-}
-
-static void process_ARP_packet(struct strip *strip_info,
- STRIP_Header * header, __u8 * ptr,
- __u8 * end)
-{
- __u16 packetlen;
- struct arphdr *arphdr = (struct arphdr *) strip_info->rx_buff;
-
- /* Decode start of the ARP packet */
- ptr = UnStuffData(ptr, end, strip_info->rx_buff, 8);
- if (!ptr) {
- RecvErr("ARP Packet too short", strip_info);
- return;
- }
-
- packetlen = 8 + (arphdr->ar_hln + arphdr->ar_pln) * 2;
-
- if (packetlen > MAX_RECV_MTU) {
- printk(KERN_INFO
- "%s: Dropping oversized received ARP packet: %d bytes\n",
- strip_info->dev->name, packetlen);
- strip_info->rx_dropped++;
- return;
- }
-
- /*printk(KERN_INFO "%s: Got %d byte ARP %s\n",
- strip_info->dev->name, packetlen,
- ntohs(arphdr->ar_op) == ARPOP_REQUEST ? "request" : "reply"); */
-
- /* Decode remainder of the ARP packet */
- ptr =
- UnStuffData(ptr, end, strip_info->rx_buff + 8, packetlen - 8);
- if (!ptr) {
- RecvErr("ARP Packet too short", strip_info);
- return;
- }
-
- if (ptr < end) {
- RecvErr("ARP Packet too long", strip_info);
- return;
- }
-
- header->protocol = htons(ETH_P_ARP);
-
- deliver_packet(strip_info, header, packetlen);
-}
-
-/*
- * process_text_message processes a <CR>-terminated block of data received
- * from the radio that doesn't begin with a '*' character. All normal
- * Starmode communication messages with the radio begin with a '*',
- * so any text that does not indicates a serial port error, a radio that
- * is in Hayes command mode instead of Starmode, or a radio with really
- * old firmware that doesn't frame its Starmode responses properly.
- */
-static void process_text_message(struct strip *strip_info)
-{
- __u8 *msg = strip_info->sx_buff;
- int len = strip_info->sx_count;
-
- /* Check for anything that looks like it might be our radio name */
- /* (This is here for backwards compatibility with old firmware) */
- if (len == 9 && get_radio_address(strip_info, msg) == 0)
- return;
-
- if (text_equal(msg, len, "OK"))
- return; /* Ignore 'OK' responses from prior commands */
- if (text_equal(msg, len, "ERROR"))
- return; /* Ignore 'ERROR' messages */
- if (has_prefix(msg, len, "ate0q1"))
- return; /* Ignore character echo back from the radio */
-
- /* Catch other error messages */
- /* (This is here for backwards compatibility with old firmware) */
- if (has_prefix(msg, len, "ERR_")) {
- RecvErr_Message(strip_info, NULL, &msg[4], len - 4);
- return;
- }
-
- RecvErr("No initial *", strip_info);
-}
-
-/*
- * process_message processes a <CR>-terminated block of data received
- * from the radio. If the radio is not in Starmode or has old firmware,
- * it may be a line of text in response to an AT command. Ideally, with
- * a current radio that's properly in Starmode, all data received should
- * be properly framed and checksummed radio message blocks, containing
- * either a starmode packet, or a other communication from the radio
- * firmware, like "INF_" Info messages and &COMMAND responses.
- */
-static void process_message(struct strip *strip_info)
-{
- STRIP_Header header = { zero_address, zero_address, 0 };
- __u8 *ptr = strip_info->sx_buff;
- __u8 *end = strip_info->sx_buff + strip_info->sx_count;
- __u8 sendername[32], *sptr = sendername;
- MetricomKey key;
-
- /*HexDump("Receiving", strip_info, ptr, end); */
-
- /* Check for start of address marker, and then skip over it */
- if (*ptr == '*')
- ptr++;
- else {
- process_text_message(strip_info);
- return;
- }
-
- /* Copy out the return address */
- while (ptr < end && *ptr != '*'
- && sptr < ARRAY_END(sendername) - 1)
- *sptr++ = *ptr++;
- *sptr = 0; /* Null terminate the sender name */
-
- /* Check for end of address marker, and skip over it */
- if (ptr >= end || *ptr != '*') {
- RecvErr("No second *", strip_info);
- return;
- }
- ptr++; /* Skip the second '*' */
-
- /* If the sender name is "&COMMAND", ignore this 'packet' */
- /* (This is here for backwards compatibility with old firmware) */
- if (!strcmp(sendername, "&COMMAND")) {
- strip_info->firmware_level = NoStructure;
- strip_info->next_command = CompatibilityCommand;
- return;
- }
-
- if (ptr + 4 > end) {
- RecvErr("No proto key", strip_info);
- return;
- }
-
- /* Get the protocol key out of the buffer */
- key.c[0] = *ptr++;
- key.c[1] = *ptr++;
- key.c[2] = *ptr++;
- key.c[3] = *ptr++;
-
- /* If we're using checksums, verify the checksum at the end of the packet */
- if (strip_info->firmware_level >= ChecksummedMessages) {
- end -= 4; /* Chop the last four bytes off the packet (they're the checksum) */
- if (ptr > end) {
- RecvErr("Missing Checksum", strip_info);
- return;
- }
- if (!verify_checksum(strip_info)) {
- RecvErr("Bad Checksum", strip_info);
- return;
- }
- }
-
- /*printk(KERN_INFO "%s: Got packet from \"%s\".\n", strip_info->dev->name, sendername); */
-
- /*
- * Fill in (pseudo) source and destination addresses in the packet.
- * We assume that the destination address was our address (the radio does not
- * tell us this). If the radio supplies a source address, then we use it.
- */
- header.dst_addr = strip_info->true_dev_addr;
- string_to_radio_address(&header.src_addr, sendername);
-
-#ifdef EXT_COUNTERS
- if (key.l == SIP0Key.l) {
- strip_info->rx_rbytes += (end - ptr);
- process_IP_packet(strip_info, &header, ptr, end);
- } else if (key.l == ARP0Key.l) {
- strip_info->rx_rbytes += (end - ptr);
- process_ARP_packet(strip_info, &header, ptr, end);
- } else if (key.l == ATR_Key.l) {
- strip_info->rx_ebytes += (end - ptr);
- process_AT_response(strip_info, ptr, end);
- } else if (key.l == ACK_Key.l) {
- strip_info->rx_ebytes += (end - ptr);
- process_ACK(strip_info, ptr, end);
- } else if (key.l == INF_Key.l) {
- strip_info->rx_ebytes += (end - ptr);
- process_Info(strip_info, ptr, end);
- } else if (key.l == ERR_Key.l) {
- strip_info->rx_ebytes += (end - ptr);
- RecvErr_Message(strip_info, sendername, ptr, end - ptr);
- } else
- RecvErr("Unrecognized protocol key", strip_info);
-#else
- if (key.l == SIP0Key.l)
- process_IP_packet(strip_info, &header, ptr, end);
- else if (key.l == ARP0Key.l)
- process_ARP_packet(strip_info, &header, ptr, end);
- else if (key.l == ATR_Key.l)
- process_AT_response(strip_info, ptr, end);
- else if (key.l == ACK_Key.l)
- process_ACK(strip_info, ptr, end);
- else if (key.l == INF_Key.l)
- process_Info(strip_info, ptr, end);
- else if (key.l == ERR_Key.l)
- RecvErr_Message(strip_info, sendername, ptr, end - ptr);
- else
- RecvErr("Unrecognized protocol key", strip_info);
-#endif
-}
-
-#define TTYERROR(X) ((X) == TTY_BREAK ? "Break" : \
- (X) == TTY_FRAME ? "Framing Error" : \
- (X) == TTY_PARITY ? "Parity Error" : \
- (X) == TTY_OVERRUN ? "Hardware Overrun" : "Unknown Error")
-
-/*
- * Handle the 'receiver data ready' interrupt.
- * This function is called by the 'tty_io' module in the kernel when
- * a block of STRIP data has been received, which can now be decapsulated
- * and sent on to some IP layer for further processing.
- */
-
-static void strip_receive_buf(struct tty_struct *tty, const unsigned char *cp,
- char *fp, int count)
-{
- struct strip *strip_info = tty->disc_data;
- const unsigned char *end = cp + count;
-
- if (!strip_info || strip_info->magic != STRIP_MAGIC
- || !netif_running(strip_info->dev))
- return;
-
- spin_lock_bh(&strip_lock);
-#if 0
- {
- struct timeval tv;
- do_gettimeofday(&tv);
- printk(KERN_INFO
- "**** strip_receive_buf: %3d bytes at %02d.%06d\n",
- count, tv.tv_sec % 100, tv.tv_usec);
- }
-#endif
-
-#ifdef EXT_COUNTERS
- strip_info->rx_sbytes += count;
-#endif
-
- /* Read the characters out of the buffer */
- while (cp < end) {
- if (fp && *fp)
- printk(KERN_INFO "%s: %s on serial port\n",
- strip_info->dev->name, TTYERROR(*fp));
- if (fp && *fp++ && !strip_info->discard) { /* If there's a serial error, record it */
- /* If we have some characters in the buffer, discard them */
- strip_info->discard = strip_info->sx_count;
- strip_info->rx_errors++;
- }
-
- /* Leading control characters (CR, NL, Tab, etc.) are ignored */
- if (strip_info->sx_count > 0 || *cp >= ' ') {
- if (*cp == 0x0D) { /* If end of packet, decide what to do with it */
- if (strip_info->sx_count > 3000)
- printk(KERN_INFO
- "%s: Cut a %d byte packet (%zd bytes remaining)%s\n",
- strip_info->dev->name,
- strip_info->sx_count,
- end - cp - 1,
- strip_info->
- discard ? " (discarded)" :
- "");
- if (strip_info->sx_count >
- strip_info->sx_size) {
- strip_info->rx_over_errors++;
- printk(KERN_INFO
- "%s: sx_buff overflow (%d bytes total)\n",
- strip_info->dev->name,
- strip_info->sx_count);
- } else if (strip_info->discard)
- printk(KERN_INFO
- "%s: Discarding bad packet (%d/%d)\n",
- strip_info->dev->name,
- strip_info->discard,
- strip_info->sx_count);
- else
- process_message(strip_info);
- strip_info->discard = 0;
- strip_info->sx_count = 0;
- } else {
- /* Make sure we have space in the buffer */
- if (strip_info->sx_count <
- strip_info->sx_size)
- strip_info->sx_buff[strip_info->
- sx_count] =
- *cp;
- strip_info->sx_count++;
- }
- }
- cp++;
- }
- spin_unlock_bh(&strip_lock);
-}
-
-
-/************************************************************************/
-/* General control routines */
-
-static int set_mac_address(struct strip *strip_info,
- MetricomAddress * addr)
-{
- /*
- * We're using a manually specified address if the address is set
- * to anything other than all ones. Setting the address to all ones
- * disables manual mode and goes back to automatic address determination
- * (tracking the true address that the radio has).
- */
- strip_info->manual_dev_addr =
- memcmp(addr->c, broadcast_address.c,
- sizeof(broadcast_address));
- if (strip_info->manual_dev_addr)
- *(MetricomAddress *) strip_info->dev->dev_addr = *addr;
- else
- *(MetricomAddress *) strip_info->dev->dev_addr =
- strip_info->true_dev_addr;
- return 0;
-}
-
-static int strip_set_mac_address(struct net_device *dev, void *addr)
-{
- struct strip *strip_info = netdev_priv(dev);
- struct sockaddr *sa = addr;
- printk(KERN_INFO "%s: strip_set_dev_mac_address called\n", dev->name);
- set_mac_address(strip_info, (MetricomAddress *) sa->sa_data);
- return 0;
-}
-
-static struct net_device_stats *strip_get_stats(struct net_device *dev)
-{
- struct strip *strip_info = netdev_priv(dev);
- static struct net_device_stats stats;
-
- memset(&stats, 0, sizeof(struct net_device_stats));
-
- stats.rx_packets = strip_info->rx_packets;
- stats.tx_packets = strip_info->tx_packets;
- stats.rx_dropped = strip_info->rx_dropped;
- stats.tx_dropped = strip_info->tx_dropped;
- stats.tx_errors = strip_info->tx_errors;
- stats.rx_errors = strip_info->rx_errors;
- stats.rx_over_errors = strip_info->rx_over_errors;
- return (&stats);
-}
-
-
-/************************************************************************/
-/* Opening and closing */
-
-/*
- * Here's the order things happen:
- * When the user runs "slattach -p strip ..."
- * 1. The TTY module calls strip_open;;
- * 2. strip_open calls strip_alloc
- * 3. strip_alloc calls register_netdev
- * 4. register_netdev calls strip_dev_init
- * 5. then strip_open finishes setting up the strip_info
- *
- * When the user runs "ifconfig st<x> up address netmask ..."
- * 6. strip_open_low gets called
- *
- * When the user runs "ifconfig st<x> down"
- * 7. strip_close_low gets called
- *
- * When the user kills the slattach process
- * 8. strip_close gets called
- * 9. strip_close calls dev_close
- * 10. if the device is still up, then dev_close calls strip_close_low
- * 11. strip_close calls strip_free
- */
-
-/* Open the low-level part of the STRIP channel. Easy! */
-
-static int strip_open_low(struct net_device *dev)
-{
- struct strip *strip_info = netdev_priv(dev);
-
- if (strip_info->tty == NULL)
- return (-ENODEV);
-
- if (!allocate_buffers(strip_info, dev->mtu))
- return (-ENOMEM);
-
- strip_info->sx_count = 0;
- strip_info->tx_left = 0;
-
- strip_info->discard = 0;
- strip_info->working = FALSE;
- strip_info->firmware_level = NoStructure;
- strip_info->next_command = CompatibilityCommand;
- strip_info->user_baud = tty_get_baud_rate(strip_info->tty);
-
- printk(KERN_INFO "%s: Initializing Radio.\n",
- strip_info->dev->name);
- ResetRadio(strip_info);
- strip_info->idle_timer.expires = jiffies + 1 * HZ;
- add_timer(&strip_info->idle_timer);
- netif_wake_queue(dev);
- return (0);
-}
-
-
-/*
- * Close the low-level part of the STRIP channel. Easy!
- */
-
-static int strip_close_low(struct net_device *dev)
-{
- struct strip *strip_info = netdev_priv(dev);
-
- if (strip_info->tty == NULL)
- return -EBUSY;
- clear_bit(TTY_DO_WRITE_WAKEUP, &strip_info->tty->flags);
- netif_stop_queue(dev);
-
- /*
- * Free all STRIP frame buffers.
- */
- kfree(strip_info->rx_buff);
- strip_info->rx_buff = NULL;
- kfree(strip_info->sx_buff);
- strip_info->sx_buff = NULL;
- kfree(strip_info->tx_buff);
- strip_info->tx_buff = NULL;
-
- del_timer(&strip_info->idle_timer);
- return 0;
-}
-
-static const struct header_ops strip_header_ops = {
- .create = strip_header,
- .rebuild = strip_rebuild_header,
-};
-
-
-static const struct net_device_ops strip_netdev_ops = {
- .ndo_open = strip_open_low,
- .ndo_stop = strip_close_low,
- .ndo_start_xmit = strip_xmit,
- .ndo_set_mac_address = strip_set_mac_address,
- .ndo_get_stats = strip_get_stats,
- .ndo_change_mtu = strip_change_mtu,
-};
-
-/*
- * This routine is called by DDI when the
- * (dynamically assigned) device is registered
- */
-
-static void strip_dev_setup(struct net_device *dev)
-{
- /*
- * Finish setting up the DEVICE info.
- */
-
- dev->trans_start = 0;
- dev->tx_queue_len = 30; /* Drop after 30 frames queued */
-
- dev->flags = 0;
- dev->mtu = DEFAULT_STRIP_MTU;
- dev->type = ARPHRD_METRICOM; /* dtang */
- dev->hard_header_len = sizeof(STRIP_Header);
- /*
- * netdev_priv(dev) Already holds a pointer to our struct strip
- */
-
- *(MetricomAddress *)dev->broadcast = broadcast_address;
- dev->dev_addr[0] = 0;
- dev->addr_len = sizeof(MetricomAddress);
-
- dev->header_ops = &strip_header_ops,
- dev->netdev_ops = &strip_netdev_ops;
-}
-
-/*
- * Free a STRIP channel.
- */
-
-static void strip_free(struct strip *strip_info)
-{
- spin_lock_bh(&strip_lock);
- list_del_rcu(&strip_info->list);
- spin_unlock_bh(&strip_lock);
-
- strip_info->magic = 0;
-
- free_netdev(strip_info->dev);
-}
-
-
-/*
- * Allocate a new free STRIP channel
- */
-static struct strip *strip_alloc(void)
-{
- struct list_head *n;
- struct net_device *dev;
- struct strip *strip_info;
-
- dev = alloc_netdev(sizeof(struct strip), "st%d",
- strip_dev_setup);
-
- if (!dev)
- return NULL; /* If no more memory, return */
-
-
- strip_info = netdev_priv(dev);
- strip_info->dev = dev;
-
- strip_info->magic = STRIP_MAGIC;
- strip_info->tty = NULL;
-
- strip_info->gratuitous_arp = jiffies + LongTime;
- strip_info->arp_interval = 0;
- init_timer(&strip_info->idle_timer);
- strip_info->idle_timer.data = (long) dev;
- strip_info->idle_timer.function = strip_IdleTask;
-
-
- spin_lock_bh(&strip_lock);
- rescan:
- /*
- * Search the list to find where to put our new entry
- * (and in the process decide what channel number it is
- * going to be)
- */
- list_for_each(n, &strip_list) {
- struct strip *s = hlist_entry(n, struct strip, list);
-
- if (s->dev->base_addr == dev->base_addr) {
- ++dev->base_addr;
- goto rescan;
- }
- }
-
- sprintf(dev->name, "st%ld", dev->base_addr);
-
- list_add_tail_rcu(&strip_info->list, &strip_list);
- spin_unlock_bh(&strip_lock);
-
- return strip_info;
-}
-
-/*
- * Open the high-level part of the STRIP channel.
- * This function is called by the TTY module when the
- * STRIP line discipline is called for. Because we are
- * sure the tty line exists, we only have to link it to
- * a free STRIP channel...
- */
-
-static int strip_open(struct tty_struct *tty)
-{
- struct strip *strip_info = tty->disc_data;
-
- /*
- * First make sure we're not already connected.
- */
-
- if (strip_info && strip_info->magic == STRIP_MAGIC)
- return -EEXIST;
-
- /*
- * We need a write method.
- */
-
- if (tty->ops->write == NULL || tty->ops->set_termios == NULL)
- return -EOPNOTSUPP;
-
- /*
- * OK. Find a free STRIP channel to use.
- */
- if ((strip_info = strip_alloc()) == NULL)
- return -ENFILE;
-
- /*
- * Register our newly created device so it can be ifconfig'd
- * strip_dev_init() will be called as a side-effect
- */
-
- if (register_netdev(strip_info->dev) != 0) {
- printk(KERN_ERR "strip: register_netdev() failed.\n");
- strip_free(strip_info);
- return -ENFILE;
- }
-
- strip_info->tty = tty;
- tty->disc_data = strip_info;
- tty->receive_room = 65536;
-
- tty_driver_flush_buffer(tty);
-
- /*
- * Restore default settings
- */
-
- strip_info->dev->type = ARPHRD_METRICOM; /* dtang */
-
- /*
- * Set tty options
- */
-
- tty->termios->c_iflag |= IGNBRK | IGNPAR; /* Ignore breaks and parity errors. */
- tty->termios->c_cflag |= CLOCAL; /* Ignore modem control signals. */
- tty->termios->c_cflag &= ~HUPCL; /* Don't close on hup */
-
- printk(KERN_INFO "STRIP: device \"%s\" activated\n",
- strip_info->dev->name);
-
- /*
- * Done. We have linked the TTY line to a channel.
- */
- return (strip_info->dev->base_addr);
-}
-
-/*
- * Close down a STRIP channel.
- * This means flushing out any pending queues, and then restoring the
- * TTY line discipline to what it was before it got hooked to STRIP
- * (which usually is TTY again).
- */
-
-static void strip_close(struct tty_struct *tty)
-{
- struct strip *strip_info = tty->disc_data;
-
- /*
- * First make sure we're connected.
- */
-
- if (!strip_info || strip_info->magic != STRIP_MAGIC)
- return;
-
- unregister_netdev(strip_info->dev);
-
- tty->disc_data = NULL;
- strip_info->tty = NULL;
- printk(KERN_INFO "STRIP: device \"%s\" closed down\n",
- strip_info->dev->name);
- strip_free(strip_info);
- tty->disc_data = NULL;
-}
-
-
-/************************************************************************/
-/* Perform I/O control calls on an active STRIP channel. */
-
-static int strip_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct strip *strip_info = tty->disc_data;
-
- /*
- * First make sure we're connected.
- */
-
- if (!strip_info || strip_info->magic != STRIP_MAGIC)
- return -EINVAL;
-
- switch (cmd) {
- case SIOCGIFNAME:
- if(copy_to_user((void __user *) arg, strip_info->dev->name, strlen(strip_info->dev->name) + 1))
- return -EFAULT;
- break;
- case SIOCSIFHWADDR:
- {
- MetricomAddress addr;
- //printk(KERN_INFO "%s: SIOCSIFHWADDR\n", strip_info->dev->name);
- if(copy_from_user(&addr, (void __user *) arg, sizeof(MetricomAddress)))
- return -EFAULT;
- return set_mac_address(strip_info, &addr);
- }
- default:
- return tty_mode_ioctl(tty, file, cmd, arg);
- break;
- }
- return 0;
-}
-
-
-/************************************************************************/
-/* Initialization */
-
-static struct tty_ldisc_ops strip_ldisc = {
- .magic = TTY_LDISC_MAGIC,
- .name = "strip",
- .owner = THIS_MODULE,
- .open = strip_open,
- .close = strip_close,
- .ioctl = strip_ioctl,
- .receive_buf = strip_receive_buf,
- .write_wakeup = strip_write_some_more,
-};
-
-/*
- * Initialize the STRIP driver.
- * This routine is called at boot time, to bootstrap the multi-channel
- * STRIP driver
- */
-
-static char signon[] __initdata =
- KERN_INFO "STRIP: Version %s (unlimited channels)\n";
-
-static int __init strip_init_driver(void)
-{
- int status;
-
- printk(signon, StripVersion);
-
-
- /*
- * Fill in our line protocol discipline, and register it
- */
- if ((status = tty_register_ldisc(N_STRIP, &strip_ldisc)))
- printk(KERN_ERR "STRIP: can't register line discipline (err = %d)\n",
- status);
-
- /*
- * Register the status file with /proc
- */
- proc_net_fops_create(&init_net, "strip", S_IFREG | S_IRUGO, &strip_seq_fops);
-
- return status;
-}
-
-module_init(strip_init_driver);
-
-static const char signoff[] __exitdata =
- KERN_INFO "STRIP: Module Unloaded\n";
-
-static void __exit strip_exit_driver(void)
-{
- int i;
- struct list_head *p,*n;
-
- /* module ref count rules assure that all entries are unregistered */
- list_for_each_safe(p, n, &strip_list) {
- struct strip *s = list_entry(p, struct strip, list);
- strip_free(s);
- }
-
- /* Unregister with the /proc/net file here. */
- proc_net_remove(&init_net, "strip");
-
- if ((i = tty_unregister_ldisc(N_STRIP)))
- printk(KERN_ERR "STRIP: can't unregister line discipline (err = %d)\n", i);
-
- printk(signoff);
-}
-
-module_exit(strip_exit_driver);
-
-MODULE_AUTHOR("Stuart Cheshire <cheshire@cs.stanford.edu>");
-MODULE_DESCRIPTION("Starmode Radio IP (STRIP) Device Driver");
-MODULE_LICENSE("Dual BSD/GPL");
-
-MODULE_SUPPORTED_DEVICE("Starmode Radio IP (STRIP) modem");
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 7df3ba4..dffc820 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -127,5 +127,7 @@ source "drivers/staging/sep/Kconfig"
source "drivers/staging/iio/Kconfig"
+source "drivers/staging/strip/Kconfig"
+
endif # !STAGING_EXCLUDE_BUILD
endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 7475711..e91391d 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -45,3 +45,4 @@ obj-$(CONFIG_VME_BUS) += vme/
obj-$(CONFIG_RAR_REGISTER) += rar/
obj-$(CONFIG_DX_SEP) += sep/
obj-$(CONFIG_IIO) += iio/
+obj-$(CONFIG_STRIP) += strip/
diff --git a/drivers/staging/strip/Kconfig b/drivers/staging/strip/Kconfig
new file mode 100644
index 0000000..36257b5
--- /dev/null
+++ b/drivers/staging/strip/Kconfig
@@ -0,0 +1,22 @@
+config STRIP
+ tristate "STRIP (Metricom starmode radio IP)"
+ depends on INET
+ select WIRELESS_EXT
+ ---help---
+ Say Y if you have a Metricom radio and intend to use Starmode Radio
+ IP. STRIP is a radio protocol developed for the MosquitoNet project
+ to send Internet traffic using Metricom radios. Metricom radios are
+ small, battery powered, 100kbit/sec packet radio transceivers, about
+ the size and weight of a cellular telephone. (You may also have heard
+ them called "Metricom modems" but we avoid the term "modem" because
+ it misleads many people into thinking that you can plug a Metricom
+ modem into a phone line and use it as a modem.)
+
+ You can use STRIP on any Linux machine with a serial port, although
+ it is obviously most useful for people with laptop computers. If you
+ think you might get a Metricom radio in the future, there is no harm
+ in saying Y to STRIP now, except that it makes the kernel a bit
+ bigger.
+
+ To compile this as a module, choose M here: the module will be
+ called strip.
diff --git a/drivers/staging/strip/Makefile b/drivers/staging/strip/Makefile
new file mode 100644
index 0000000..6417bdc
--- /dev/null
+++ b/drivers/staging/strip/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_STRIP) += strip.o
diff --git a/drivers/staging/strip/strip.c b/drivers/staging/strip/strip.c
new file mode 100644
index 0000000..ea6a87c
--- /dev/null
+++ b/drivers/staging/strip/strip.c
@@ -0,0 +1,2805 @@
+/*
+ * Copyright 1996 The Board of Trustees of The Leland Stanford
+ * Junior University. All Rights Reserved.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies. Stanford University
+ * makes no representations about the suitability of this
+ * software for any purpose. It is provided "as is" without
+ * express or implied warranty.
+ *
+ * strip.c This module implements Starmode Radio IP (STRIP)
+ * for kernel-based devices like TTY. It interfaces between a
+ * raw TTY, and the kernel's INET protocol layers (via DDI).
+ *
+ * Version: @(#)strip.c 1.3 July 1997
+ *
+ * Author: Stuart Cheshire <cheshire@cs.stanford.edu>
+ *
+ * Fixes: v0.9 12th Feb 1996 (SC)
+ * New byte stuffing (2+6 run-length encoding)
+ * New watchdog timer task
+ * New Protocol key (SIP0)
+ *
+ * v0.9.1 3rd March 1996 (SC)
+ * Changed to dynamic device allocation -- no more compile
+ * time (or boot time) limit on the number of STRIP devices.
+ *
+ * v0.9.2 13th March 1996 (SC)
+ * Uses arp cache lookups (but doesn't send arp packets yet)
+ *
+ * v0.9.3 17th April 1996 (SC)
+ * Fixed bug where STR_ERROR flag was getting set unneccessarily
+ * (causing otherwise good packets to be unneccessarily dropped)
+ *
+ * v0.9.4 27th April 1996 (SC)
+ * First attempt at using "&COMMAND" Starmode AT commands
+ *
+ * v0.9.5 29th May 1996 (SC)
+ * First attempt at sending (unicast) ARP packets
+ *
+ * v0.9.6 5th June 1996 (Elliot)
+ * Put "message level" tags in every "printk" statement
+ *
+ * v0.9.7 13th June 1996 (laik)
+ * Added support for the /proc fs
+ *
+ * v0.9.8 July 1996 (Mema)
+ * Added packet logging
+ *
+ * v1.0 November 1996 (SC)
+ * Fixed (severe) memory leaks in the /proc fs code
+ * Fixed race conditions in the logging code
+ *
+ * v1.1 January 1997 (SC)
+ * Deleted packet logging (use tcpdump instead)
+ * Added support for Metricom Firmware v204 features
+ * (like message checksums)
+ *
+ * v1.2 January 1997 (SC)
+ * Put portables list back in
+ *
+ * v1.3 July 1997 (SC)
+ * Made STRIP driver set the radio's baud rate automatically.
+ * It is no longer necessarily to manually set the radio's
+ * rate permanently to 115200 -- the driver handles setting
+ * the rate automatically.
+ */
+
+#ifdef MODULE
+static const char StripVersion[] = "1.3A-STUART.CHESHIRE-MODULAR";
+#else
+static const char StripVersion[] = "1.3A-STUART.CHESHIRE";
+#endif
+
+#define TICKLE_TIMERS 0
+#define EXT_COUNTERS 1
+
+
+/************************************************************************/
+/* Header files */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+# include <linux/ctype.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/in.h>
+#include <linux/tty.h>
+#include <linux/errno.h>
+#include <linux/netdevice.h>
+#include <linux/inetdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+#include <linux/if_strip.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/serial.h>
+#include <linux/serialP.h>
+#include <linux/rcupdate.h>
+#include <net/arp.h>
+#include <net/net_namespace.h>
+
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/time.h>
+#include <linux/jiffies.h>
+
+/************************************************************************/
+/* Useful structures and definitions */
+
+/*
+ * A MetricomKey identifies the protocol being carried inside a Metricom
+ * Starmode packet.
+ */
+
+typedef union {
+ __u8 c[4];
+ __u32 l;
+} MetricomKey;
+
+/*
+ * An IP address can be viewed as four bytes in memory (which is what it is) or as
+ * a single 32-bit long (which is convenient for assignment, equality testing etc.)
+ */
+
+typedef union {
+ __u8 b[4];
+ __u32 l;
+} IPaddr;
+
+/*
+ * A MetricomAddressString is used to hold a printable representation of
+ * a Metricom address.
+ */
+
+typedef struct {
+ __u8 c[24];
+} MetricomAddressString;
+
+/* Encapsulation can expand packet of size x to 65/64x + 1
+ * Sent packet looks like "<CR>*<address>*<key><encaps payload><CR>"
+ * 1 1 1-18 1 4 ? 1
+ * eg. <CR>*0000-1234*SIP0<encaps payload><CR>
+ * We allow 31 bytes for the stars, the key, the address and the <CR>s
+ */
+#define STRIP_ENCAP_SIZE(X) (32 + (X)*65L/64L)
+
+/*
+ * A STRIP_Header is never really sent over the radio, but making a dummy
+ * header for internal use within the kernel that looks like an Ethernet
+ * header makes certain other software happier. For example, tcpdump
+ * already understands Ethernet headers.
+ */
+
+typedef struct {
+ MetricomAddress dst_addr; /* Destination address, e.g. "0000-1234" */
+ MetricomAddress src_addr; /* Source address, e.g. "0000-5678" */
+ unsigned short protocol; /* The protocol type, using Ethernet codes */
+} STRIP_Header;
+
+typedef struct {
+ char c[60];
+} MetricomNode;
+
+#define NODE_TABLE_SIZE 32
+typedef struct {
+ struct timeval timestamp;
+ int num_nodes;
+ MetricomNode node[NODE_TABLE_SIZE];
+} MetricomNodeTable;
+
+enum { FALSE = 0, TRUE = 1 };
+
+/*
+ * Holds the radio's firmware version.
+ */
+typedef struct {
+ char c[50];
+} FirmwareVersion;
+
+/*
+ * Holds the radio's serial number.
+ */
+typedef struct {
+ char c[18];
+} SerialNumber;
+
+/*
+ * Holds the radio's battery voltage.
+ */
+typedef struct {
+ char c[11];
+} BatteryVoltage;
+
+typedef struct {
+ char c[8];
+} char8;
+
+enum {
+ NoStructure = 0, /* Really old firmware */
+ StructuredMessages = 1, /* Parsable AT response msgs */
+ ChecksummedMessages = 2 /* Parsable AT response msgs with checksums */
+};
+
+struct strip {
+ int magic;
+ /*
+ * These are pointers to the malloc()ed frame buffers.
+ */
+
+ unsigned char *rx_buff; /* buffer for received IP packet */
+ unsigned char *sx_buff; /* buffer for received serial data */
+ int sx_count; /* received serial data counter */
+ int sx_size; /* Serial buffer size */
+ unsigned char *tx_buff; /* transmitter buffer */
+ unsigned char *tx_head; /* pointer to next byte to XMIT */
+ int tx_left; /* bytes left in XMIT queue */
+ int tx_size; /* Serial buffer size */
+
+ /*
+ * STRIP interface statistics.
+ */
+
+ unsigned long rx_packets; /* inbound frames counter */
+ unsigned long tx_packets; /* outbound frames counter */
+ unsigned long rx_errors; /* Parity, etc. errors */
+ unsigned long tx_errors; /* Planned stuff */
+ unsigned long rx_dropped; /* No memory for skb */
+ unsigned long tx_dropped; /* When MTU change */
+ unsigned long rx_over_errors; /* Frame bigger than STRIP buf. */
+
+ unsigned long pps_timer; /* Timer to determine pps */
+ unsigned long rx_pps_count; /* Counter to determine pps */
+ unsigned long tx_pps_count; /* Counter to determine pps */
+ unsigned long sx_pps_count; /* Counter to determine pps */
+ unsigned long rx_average_pps; /* rx packets per second * 8 */
+ unsigned long tx_average_pps; /* tx packets per second * 8 */
+ unsigned long sx_average_pps; /* sent packets per second * 8 */
+
+#ifdef EXT_COUNTERS
+ unsigned long rx_bytes; /* total received bytes */
+ unsigned long tx_bytes; /* total received bytes */
+ unsigned long rx_rbytes; /* bytes thru radio i/f */
+ unsigned long tx_rbytes; /* bytes thru radio i/f */
+ unsigned long rx_sbytes; /* tot bytes thru serial i/f */
+ unsigned long tx_sbytes; /* tot bytes thru serial i/f */
+ unsigned long rx_ebytes; /* tot stat/err bytes */
+ unsigned long tx_ebytes; /* tot stat/err bytes */
+#endif
+
+ /*
+ * Internal variables.
+ */
+
+ struct list_head list; /* Linked list of devices */
+
+ int discard; /* Set if serial error */
+ int working; /* Is radio working correctly? */
+ int firmware_level; /* Message structuring level */
+ int next_command; /* Next periodic command */
+ unsigned int user_baud; /* The user-selected baud rate */
+ int mtu; /* Our mtu (to spot changes!) */
+ long watchdog_doprobe; /* Next time to test the radio */
+ long watchdog_doreset; /* Time to do next reset */
+ long gratuitous_arp; /* Time to send next ARP refresh */
+ long arp_interval; /* Next ARP interval */
+ struct timer_list idle_timer; /* For periodic wakeup calls */
+ MetricomAddress true_dev_addr; /* True address of radio */
+ int manual_dev_addr; /* Hack: See note below */
+
+ FirmwareVersion firmware_version; /* The radio's firmware version */
+ SerialNumber serial_number; /* The radio's serial number */
+ BatteryVoltage battery_voltage; /* The radio's battery voltage */
+
+ /*
+ * Other useful structures.
+ */
+
+ struct tty_struct *tty; /* ptr to TTY structure */
+ struct net_device *dev; /* Our device structure */
+
+ /*
+ * Neighbour radio records
+ */
+
+ MetricomNodeTable portables;
+ MetricomNodeTable poletops;
+};
+
+/*
+ * Note: manual_dev_addr hack
+ *
+ * It is not possible to change the hardware address of a Metricom radio,
+ * or to send packets with a user-specified hardware source address, thus
+ * trying to manually set a hardware source address is a questionable
+ * thing to do. However, if the user *does* manually set the hardware
+ * source address of a STRIP interface, then the kernel will believe it,
+ * and use it in certain places. For example, the hardware address listed
+ * by ifconfig will be the manual address, not the true one.
+ * (Both addresses are listed in /proc/net/strip.)
+ * Also, ARP packets will be sent out giving the user-specified address as
+ * the source address, not the real address. This is dangerous, because
+ * it means you won't receive any replies -- the ARP replies will go to
+ * the specified address, which will be some other radio. The case where
+ * this is useful is when that other radio is also connected to the same
+ * machine. This allows you to connect a pair of radios to one machine,
+ * and to use one exclusively for inbound traffic, and the other
+ * exclusively for outbound traffic. Pretty neat, huh?
+ *
+ * Here's the full procedure to set this up:
+ *
+ * 1. "slattach" two interfaces, e.g. st0 for outgoing packets,
+ * and st1 for incoming packets
+ *
+ * 2. "ifconfig" st0 (outbound radio) to have the hardware address
+ * which is the real hardware address of st1 (inbound radio).
+ * Now when it sends out packets, it will masquerade as st1, and
+ * replies will be sent to that radio, which is exactly what we want.
+ *
+ * 3. Set the route table entry ("route add default ..." or
+ * "route add -net ...", as appropriate) to send packets via the st0
+ * interface (outbound radio). Do not add any route which sends packets
+ * out via the st1 interface -- that radio is for inbound traffic only.
+ *
+ * 4. "ifconfig" st1 (inbound radio) to have hardware address zero.
+ * This tells the STRIP driver to "shut down" that interface and not
+ * send any packets through it. In particular, it stops sending the
+ * periodic gratuitous ARP packets that a STRIP interface normally sends.
+ * Also, when packets arrive on that interface, it will search the
+ * interface list to see if there is another interface who's manual
+ * hardware address matches its own real address (i.e. st0 in this
+ * example) and if so it will transfer ownership of the skbuff to
+ * that interface, so that it looks to the kernel as if the packet
+ * arrived on that interface. This is necessary because when the
+ * kernel sends an ARP packet on st0, it expects to get a reply on
+ * st0, and if it sees the reply come from st1 then it will ignore
+ * it (to be accurate, it puts the entry in the ARP table, but
+ * labelled in such a way that st0 can't use it).
+ *
+ * Thanks to Petros Maniatis for coming up with the idea of splitting
+ * inbound and outbound traffic between two interfaces, which turned
+ * out to be really easy to implement, even if it is a bit of a hack.
+ *
+ * Having set a manual address on an interface, you can restore it
+ * to automatic operation (where the address is automatically kept
+ * consistent with the real address of the radio) by setting a manual
+ * address of all ones, e.g. "ifconfig st0 hw strip FFFFFFFFFFFF"
+ * This 'turns off' manual override mode for the device address.
+ *
+ * Note: The IEEE 802 headers reported in tcpdump will show the *real*
+ * radio addresses the packets were sent and received from, so that you
+ * can see what is really going on with packets, and which interfaces
+ * they are really going through.
+ */
+
+
+/************************************************************************/
+/* Constants */
+
+/*
+ * CommandString1 works on all radios
+ * Other CommandStrings are only used with firmware that provides structured responses.
+ *
+ * ats319=1 Enables Info message for node additions and deletions
+ * ats319=2 Enables Info message for a new best node
+ * ats319=4 Enables checksums
+ * ats319=8 Enables ACK messages
+ */
+
+static const int MaxCommandStringLength = 32;
+static const int CompatibilityCommand = 1;
+
+static const char CommandString0[] = "*&COMMAND*ATS319=7"; /* Turn on checksums & info messages */
+static const char CommandString1[] = "*&COMMAND*ATS305?"; /* Query radio name */
+static const char CommandString2[] = "*&COMMAND*ATS325?"; /* Query battery voltage */
+static const char CommandString3[] = "*&COMMAND*ATS300?"; /* Query version information */
+static const char CommandString4[] = "*&COMMAND*ATS311?"; /* Query poletop list */
+static const char CommandString5[] = "*&COMMAND*AT~LA"; /* Query portables list */
+typedef struct {
+ const char *string;
+ long length;
+} StringDescriptor;
+
+static const StringDescriptor CommandString[] = {
+ {CommandString0, sizeof(CommandString0) - 1},
+ {CommandString1, sizeof(CommandString1) - 1},
+ {CommandString2, sizeof(CommandString2) - 1},
+ {CommandString3, sizeof(CommandString3) - 1},
+ {CommandString4, sizeof(CommandString4) - 1},
+ {CommandString5, sizeof(CommandString5) - 1}
+};
+
+#define GOT_ALL_RADIO_INFO(S) \
+ ((S)->firmware_version.c[0] && \
+ (S)->battery_voltage.c[0] && \
+ memcmp(&(S)->true_dev_addr, zero_address.c, sizeof(zero_address)))
+
+static const char hextable[16] = "0123456789ABCDEF";
+
+static const MetricomAddress zero_address;
+static const MetricomAddress broadcast_address =
+ { {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF} };
+
+static const MetricomKey SIP0Key = { "SIP0" };
+static const MetricomKey ARP0Key = { "ARP0" };
+static const MetricomKey ATR_Key = { "ATR " };
+static const MetricomKey ACK_Key = { "ACK_" };
+static const MetricomKey INF_Key = { "INF_" };
+static const MetricomKey ERR_Key = { "ERR_" };
+
+static const long MaxARPInterval = 60 * HZ; /* One minute */
+
+/*
+ * Maximum Starmode packet length is 1183 bytes. Allowing 4 bytes for
+ * protocol key, 4 bytes for checksum, one byte for CR, and 65/64 expansion
+ * for STRIP encoding, that translates to a maximum payload MTU of 1155.
+ * Note: A standard NFS 1K data packet is a total of 0x480 (1152) bytes
+ * long, including IP header, UDP header, and NFS header. Setting the STRIP
+ * MTU to 1152 allows us to send default sized NFS packets without fragmentation.
+ */
+static const unsigned short MAX_SEND_MTU = 1152;
+static const unsigned short MAX_RECV_MTU = 1500; /* Hoping for Ethernet sized packets in the future! */
+static const unsigned short DEFAULT_STRIP_MTU = 1152;
+static const int STRIP_MAGIC = 0x5303;
+static const long LongTime = 0x7FFFFFFF;
+
+/************************************************************************/
+/* Global variables */
+
+static LIST_HEAD(strip_list);
+static DEFINE_SPINLOCK(strip_lock);
+
+/************************************************************************/
+/* Macros */
+
+/* Returns TRUE if text T begins with prefix P */
+#define has_prefix(T,L,P) (((L) >= sizeof(P)-1) && !strncmp((T), (P), sizeof(P)-1))
+
+/* Returns TRUE if text T of length L is equal to string S */
+#define text_equal(T,L,S) (((L) == sizeof(S)-1) && !strncmp((T), (S), sizeof(S)-1))
+
+#define READHEX(X) ((X)>='0' && (X)<='9' ? (X)-'0' : \
+ (X)>='a' && (X)<='f' ? (X)-'a'+10 : \
+ (X)>='A' && (X)<='F' ? (X)-'A'+10 : 0 )
+
+#define READHEX16(X) ((__u16)(READHEX(X)))
+
+#define READDEC(X) ((X)>='0' && (X)<='9' ? (X)-'0' : 0)
+
+#define ARRAY_END(X) (&((X)[ARRAY_SIZE(X)]))
+
+#define JIFFIE_TO_SEC(X) ((X) / HZ)
+
+
+/************************************************************************/
+/* Utility routines */
+
+static int arp_query(unsigned char *haddr, u32 paddr,
+ struct net_device *dev)
+{
+ struct neighbour *neighbor_entry;
+ int ret = 0;
+
+ neighbor_entry = neigh_lookup(&arp_tbl, &paddr, dev);
+
+ if (neighbor_entry != NULL) {
+ neighbor_entry->used = jiffies;
+ if (neighbor_entry->nud_state & NUD_VALID) {
+ memcpy(haddr, neighbor_entry->ha, dev->addr_len);
+ ret = 1;
+ }
+ neigh_release(neighbor_entry);
+ }
+ return ret;
+}
+
+static void DumpData(char *msg, struct strip *strip_info, __u8 * ptr,
+ __u8 * end)
+{
+ static const int MAX_DumpData = 80;
+ __u8 pkt_text[MAX_DumpData], *p = pkt_text;
+
+ *p++ = '\"';
+
+ while (ptr < end && p < &pkt_text[MAX_DumpData - 4]) {
+ if (*ptr == '\\') {
+ *p++ = '\\';
+ *p++ = '\\';
+ } else {
+ if (*ptr >= 32 && *ptr <= 126) {
+ *p++ = *ptr;
+ } else {
+ sprintf(p, "\\%02X", *ptr);
+ p += 3;
+ }
+ }
+ ptr++;
+ }
+
+ if (ptr == end)
+ *p++ = '\"';
+ *p++ = 0;
+
+ printk(KERN_INFO "%s: %-13s%s\n", strip_info->dev->name, msg, pkt_text);
+}
+
+
+/************************************************************************/
+/* Byte stuffing/unstuffing routines */
+
+/* Stuffing scheme:
+ * 00 Unused (reserved character)
+ * 01-3F Run of 2-64 different characters
+ * 40-7F Run of 1-64 different characters plus a single zero at the end
+ * 80-BF Run of 1-64 of the same character
+ * C0-FF Run of 1-64 zeroes (ASCII 0)
+ */
+
+typedef enum {
+ Stuff_Diff = 0x00,
+ Stuff_DiffZero = 0x40,
+ Stuff_Same = 0x80,
+ Stuff_Zero = 0xC0,
+ Stuff_NoCode = 0xFF, /* Special code, meaning no code selected */
+
+ Stuff_CodeMask = 0xC0,
+ Stuff_CountMask = 0x3F,
+ Stuff_MaxCount = 0x3F,
+ Stuff_Magic = 0x0D /* The value we are eliminating */
+} StuffingCode;
+
+/* StuffData encodes the data starting at "src" for "length" bytes.
+ * It writes it to the buffer pointed to by "dst" (which must be at least
+ * as long as 1 + 65/64 of the input length). The output may be up to 1.6%
+ * larger than the input for pathological input, but will usually be smaller.
+ * StuffData returns the new value of the dst pointer as its result.
+ * "code_ptr_ptr" points to a "__u8 *" which is used to hold encoding state
+ * between calls, allowing an encoded packet to be incrementally built up
+ * from small parts. On the first call, the "__u8 *" pointed to should be
+ * initialized to NULL; between subsequent calls the calling routine should
+ * leave the value alone and simply pass it back unchanged so that the
+ * encoder can recover its current state.
+ */
+
+#define StuffData_FinishBlock(X) \
+(*code_ptr = (X) ^ Stuff_Magic, code = Stuff_NoCode)
+
+static __u8 *StuffData(__u8 * src, __u32 length, __u8 * dst,
+ __u8 ** code_ptr_ptr)
+{
+ __u8 *end = src + length;
+ __u8 *code_ptr = *code_ptr_ptr;
+ __u8 code = Stuff_NoCode, count = 0;
+
+ if (!length)
+ return (dst);
+
+ if (code_ptr) {
+ /*
+ * Recover state from last call, if applicable
+ */
+ code = (*code_ptr ^ Stuff_Magic) & Stuff_CodeMask;
+ count = (*code_ptr ^ Stuff_Magic) & Stuff_CountMask;
+ }
+
+ while (src < end) {
+ switch (code) {
+ /* Stuff_NoCode: If no current code, select one */
+ case Stuff_NoCode:
+ /* Record where we're going to put this code */
+ code_ptr = dst++;
+ count = 0; /* Reset the count (zero means one instance) */
+ /* Tentatively start a new block */
+ if (*src == 0) {
+ code = Stuff_Zero;
+ src++;
+ } else {
+ code = Stuff_Same;
+ *dst++ = *src++ ^ Stuff_Magic;
+ }
+ /* Note: We optimistically assume run of same -- */
+ /* which will be fixed later in Stuff_Same */
+ /* if it turns out not to be true. */
+ break;
+
+ /* Stuff_Zero: We already have at least one zero encoded */
+ case Stuff_Zero:
+ /* If another zero, count it, else finish this code block */
+ if (*src == 0) {
+ count++;
+ src++;
+ } else {
+ StuffData_FinishBlock(Stuff_Zero + count);
+ }
+ break;
+
+ /* Stuff_Same: We already have at least one byte encoded */
+ case Stuff_Same:
+ /* If another one the same, count it */
+ if ((*src ^ Stuff_Magic) == code_ptr[1]) {
+ count++;
+ src++;
+ break;
+ }
+ /* else, this byte does not match this block. */
+ /* If we already have two or more bytes encoded, finish this code block */
+ if (count) {
+ StuffData_FinishBlock(Stuff_Same + count);
+ break;
+ }
+ /* else, we only have one so far, so switch to Stuff_Diff code */
+ code = Stuff_Diff;
+ /* and fall through to Stuff_Diff case below
+ * Note cunning cleverness here: case Stuff_Diff compares
+ * the current character with the previous two to see if it
+ * has a run of three the same. Won't this be an error if
+ * there aren't two previous characters stored to compare with?
+ * No. Because we know the current character is *not* the same
+ * as the previous one, the first test below will necessarily
+ * fail and the send half of the "if" won't be executed.
+ */
+
+ /* Stuff_Diff: We have at least two *different* bytes encoded */
+ case Stuff_Diff:
+ /* If this is a zero, must encode a Stuff_DiffZero, and begin a new block */
+ if (*src == 0) {
+ StuffData_FinishBlock(Stuff_DiffZero +
+ count);
+ }
+ /* else, if we have three in a row, it is worth starting a Stuff_Same block */
+ else if ((*src ^ Stuff_Magic) == dst[-1]
+ && dst[-1] == dst[-2]) {
+ /* Back off the last two characters we encoded */
+ code += count - 2;
+ /* Note: "Stuff_Diff + 0" is an illegal code */
+ if (code == Stuff_Diff + 0) {
+ code = Stuff_Same + 0;
+ }
+ StuffData_FinishBlock(code);
+ code_ptr = dst - 2;
+ /* dst[-1] already holds the correct value */
+ count = 2; /* 2 means three bytes encoded */
+ code = Stuff_Same;
+ }
+ /* else, another different byte, so add it to the block */
+ else {
+ *dst++ = *src ^ Stuff_Magic;
+ count++;
+ }
+ src++; /* Consume the byte */
+ break;
+ }
+ if (count == Stuff_MaxCount) {
+ StuffData_FinishBlock(code + count);
+ }
+ }
+ if (code == Stuff_NoCode) {
+ *code_ptr_ptr = NULL;
+ } else {
+ *code_ptr_ptr = code_ptr;
+ StuffData_FinishBlock(code + count);
+ }
+ return (dst);
+}
+
+/*
+ * UnStuffData decodes the data at "src", up to (but not including) "end".
+ * It writes the decoded data into the buffer pointed to by "dst", up to a
+ * maximum of "dst_length", and returns the new value of "src" so that a
+ * follow-on call can read more data, continuing from where the first left off.
+ *
+ * There are three types of results:
+ * 1. The source data runs out before extracting "dst_length" bytes:
+ * UnStuffData returns NULL to indicate failure.
+ * 2. The source data produces exactly "dst_length" bytes:
+ * UnStuffData returns new_src = end to indicate that all bytes were consumed.
+ * 3. "dst_length" bytes are extracted, with more remaining.
+ * UnStuffData returns new_src < end to indicate that there are more bytes
+ * to be read.
+ *
+ * Note: The decoding may be destructive, in that it may alter the source
+ * data in the process of decoding it (this is necessary to allow a follow-on
+ * call to resume correctly).
+ */
+
+static __u8 *UnStuffData(__u8 * src, __u8 * end, __u8 * dst,
+ __u32 dst_length)
+{
+ __u8 *dst_end = dst + dst_length;
+ /* Sanity check */
+ if (!src || !end || !dst || !dst_length)
+ return (NULL);
+ while (src < end && dst < dst_end) {
+ int count = (*src ^ Stuff_Magic) & Stuff_CountMask;
+ switch ((*src ^ Stuff_Magic) & Stuff_CodeMask) {
+ case Stuff_Diff:
+ if (src + 1 + count >= end)
+ return (NULL);
+ do {
+ *dst++ = *++src ^ Stuff_Magic;
+ }
+ while (--count >= 0 && dst < dst_end);
+ if (count < 0)
+ src += 1;
+ else {
+ if (count == 0)
+ *src = Stuff_Same ^ Stuff_Magic;
+ else
+ *src =
+ (Stuff_Diff +
+ count) ^ Stuff_Magic;
+ }
+ break;
+ case Stuff_DiffZero:
+ if (src + 1 + count >= end)
+ return (NULL);
+ do {
+ *dst++ = *++src ^ Stuff_Magic;
+ }
+ while (--count >= 0 && dst < dst_end);
+ if (count < 0)
+ *src = Stuff_Zero ^ Stuff_Magic;
+ else
+ *src =
+ (Stuff_DiffZero + count) ^ Stuff_Magic;
+ break;
+ case Stuff_Same:
+ if (src + 1 >= end)
+ return (NULL);
+ do {
+ *dst++ = src[1] ^ Stuff_Magic;
+ }
+ while (--count >= 0 && dst < dst_end);
+ if (count < 0)
+ src += 2;
+ else
+ *src = (Stuff_Same + count) ^ Stuff_Magic;
+ break;
+ case Stuff_Zero:
+ do {
+ *dst++ = 0;
+ }
+ while (--count >= 0 && dst < dst_end);
+ if (count < 0)
+ src += 1;
+ else
+ *src = (Stuff_Zero + count) ^ Stuff_Magic;
+ break;
+ }
+ }
+ if (dst < dst_end)
+ return (NULL);
+ else
+ return (src);
+}
+
+
+/************************************************************************/
+/* General routines for STRIP */
+
+/*
+ * set_baud sets the baud rate to the rate defined by baudcode
+ */
+static void set_baud(struct tty_struct *tty, speed_t baudrate)
+{
+ struct ktermios old_termios;
+
+ mutex_lock(&tty->termios_mutex);
+ old_termios =*(tty->termios);
+ tty_encode_baud_rate(tty, baudrate, baudrate);
+ tty->ops->set_termios(tty, &old_termios);
+ mutex_unlock(&tty->termios_mutex);
+}
+
+/*
+ * Convert a string to a Metricom Address.
+ */
+
+#define IS_RADIO_ADDRESS(p) ( \
+ isdigit((p)[0]) && isdigit((p)[1]) && isdigit((p)[2]) && isdigit((p)[3]) && \
+ (p)[4] == '-' && \
+ isdigit((p)[5]) && isdigit((p)[6]) && isdigit((p)[7]) && isdigit((p)[8]) )
+
+static int string_to_radio_address(MetricomAddress * addr, __u8 * p)
+{
+ if (!IS_RADIO_ADDRESS(p))
+ return (1);
+ addr->c[0] = 0;
+ addr->c[1] = 0;
+ addr->c[2] = READHEX(p[0]) << 4 | READHEX(p[1]);
+ addr->c[3] = READHEX(p[2]) << 4 | READHEX(p[3]);
+ addr->c[4] = READHEX(p[5]) << 4 | READHEX(p[6]);
+ addr->c[5] = READHEX(p[7]) << 4 | READHEX(p[8]);
+ return (0);
+}
+
+/*
+ * Convert a Metricom Address to a string.
+ */
+
+static __u8 *radio_address_to_string(const MetricomAddress * addr,
+ MetricomAddressString * p)
+{
+ sprintf(p->c, "%02X%02X-%02X%02X", addr->c[2], addr->c[3],
+ addr->c[4], addr->c[5]);
+ return (p->c);
+}
+
+/*
+ * Note: Must make sure sx_size is big enough to receive a stuffed
+ * MAX_RECV_MTU packet. Additionally, we also want to ensure that it's
+ * big enough to receive a large radio neighbour list (currently 4K).
+ */
+
+static int allocate_buffers(struct strip *strip_info, int mtu)
+{
+ struct net_device *dev = strip_info->dev;
+ int sx_size = max_t(int, STRIP_ENCAP_SIZE(MAX_RECV_MTU), 4096);
+ int tx_size = STRIP_ENCAP_SIZE(mtu) + MaxCommandStringLength;
+ __u8 *r = kmalloc(MAX_RECV_MTU, GFP_ATOMIC);
+ __u8 *s = kmalloc(sx_size, GFP_ATOMIC);
+ __u8 *t = kmalloc(tx_size, GFP_ATOMIC);
+ if (r && s && t) {
+ strip_info->rx_buff = r;
+ strip_info->sx_buff = s;
+ strip_info->tx_buff = t;
+ strip_info->sx_size = sx_size;
+ strip_info->tx_size = tx_size;
+ strip_info->mtu = dev->mtu = mtu;
+ return (1);
+ }
+ kfree(r);
+ kfree(s);
+ kfree(t);
+ return (0);
+}
+
+/*
+ * MTU has been changed by the IP layer.
+ * We could be in
+ * an upcall from the tty driver, or in an ip packet queue.
+ */
+static int strip_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct strip *strip_info = netdev_priv(dev);
+ int old_mtu = strip_info->mtu;
+ unsigned char *orbuff = strip_info->rx_buff;
+ unsigned char *osbuff = strip_info->sx_buff;
+ unsigned char *otbuff = strip_info->tx_buff;
+
+ if (new_mtu > MAX_SEND_MTU) {
+ printk(KERN_ERR
+ "%s: MTU exceeds maximum allowable (%d), MTU change cancelled.\n",
+ strip_info->dev->name, MAX_SEND_MTU);
+ return -EINVAL;
+ }
+
+ spin_lock_bh(&strip_lock);
+ if (!allocate_buffers(strip_info, new_mtu)) {
+ printk(KERN_ERR "%s: unable to grow strip buffers, MTU change cancelled.\n",
+ strip_info->dev->name);
+ spin_unlock_bh(&strip_lock);
+ return -ENOMEM;
+ }
+
+ if (strip_info->sx_count) {
+ if (strip_info->sx_count <= strip_info->sx_size)
+ memcpy(strip_info->sx_buff, osbuff,
+ strip_info->sx_count);
+ else {
+ strip_info->discard = strip_info->sx_count;
+ strip_info->rx_over_errors++;
+ }
+ }
+
+ if (strip_info->tx_left) {
+ if (strip_info->tx_left <= strip_info->tx_size)
+ memcpy(strip_info->tx_buff, strip_info->tx_head,
+ strip_info->tx_left);
+ else {
+ strip_info->tx_left = 0;
+ strip_info->tx_dropped++;
+ }
+ }
+ strip_info->tx_head = strip_info->tx_buff;
+ spin_unlock_bh(&strip_lock);
+
+ printk(KERN_NOTICE "%s: strip MTU changed fom %d to %d.\n",
+ strip_info->dev->name, old_mtu, strip_info->mtu);
+
+ kfree(orbuff);
+ kfree(osbuff);
+ kfree(otbuff);
+ return 0;
+}
+
+static void strip_unlock(struct strip *strip_info)
+{
+ /*
+ * Set the timer to go off in one second.
+ */
+ strip_info->idle_timer.expires = jiffies + 1 * HZ;
+ add_timer(&strip_info->idle_timer);
+ netif_wake_queue(strip_info->dev);
+}
+
+
+
+/*
+ * If the time is in the near future, time_delta prints the number of
+ * seconds to go into the buffer and returns the address of the buffer.
+ * If the time is not in the near future, it returns the address of the
+ * string "Not scheduled" The buffer must be long enough to contain the
+ * ascii representation of the number plus 9 charactes for the " seconds"
+ * and the null character.
+ */
+#ifdef CONFIG_PROC_FS
+static char *time_delta(char buffer[], long time)
+{
+ time -= jiffies;
+ if (time > LongTime / 2)
+ return ("Not scheduled");
+ if (time < 0)
+ time = 0; /* Don't print negative times */
+ sprintf(buffer, "%ld seconds", time / HZ);
+ return (buffer);
+}
+
+/* get Nth element of the linked list */
+static struct strip *strip_get_idx(loff_t pos)
+{
+ struct strip *str;
+ int i = 0;
+
+ list_for_each_entry_rcu(str, &strip_list, list) {
+ if (pos == i)
+ return str;
+ ++i;
+ }
+ return NULL;
+}
+
+static void *strip_seq_start(struct seq_file *seq, loff_t *pos)
+ __acquires(RCU)
+{
+ rcu_read_lock();
+ return *pos ? strip_get_idx(*pos - 1) : SEQ_START_TOKEN;
+}
+
+static void *strip_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct list_head *l;
+ struct strip *s;
+
+ ++*pos;
+ if (v == SEQ_START_TOKEN)
+ return strip_get_idx(1);
+
+ s = v;
+ l = &s->list;
+ list_for_each_continue_rcu(l, &strip_list) {
+ return list_entry(l, struct strip, list);
+ }
+ return NULL;
+}
+
+static void strip_seq_stop(struct seq_file *seq, void *v)
+ __releases(RCU)
+{
+ rcu_read_unlock();
+}
+
+static void strip_seq_neighbours(struct seq_file *seq,
+ const MetricomNodeTable * table,
+ const char *title)
+{
+ /* We wrap this in a do/while loop, so if the table changes */
+ /* while we're reading it, we just go around and try again. */
+ struct timeval t;
+
+ do {
+ int i;
+ t = table->timestamp;
+ if (table->num_nodes)
+ seq_printf(seq, "\n %s\n", title);
+ for (i = 0; i < table->num_nodes; i++) {
+ MetricomNode node;
+
+ spin_lock_bh(&strip_lock);
+ node = table->node[i];
+ spin_unlock_bh(&strip_lock);
+ seq_printf(seq, " %s\n", node.c);
+ }
+ } while (table->timestamp.tv_sec != t.tv_sec
+ || table->timestamp.tv_usec != t.tv_usec);
+}
+
+/*
+ * This function prints radio status information via the seq_file
+ * interface. The interface takes care of buffer size and over
+ * run issues.
+ *
+ * The buffer in seq_file is PAGESIZE (4K)
+ * so this routine should never print more or it will get truncated.
+ * With the maximum of 32 portables and 32 poletops
+ * reported, the routine outputs 3107 bytes into the buffer.
+ */
+static void strip_seq_status_info(struct seq_file *seq,
+ const struct strip *strip_info)
+{
+ char temp[32];
+ MetricomAddressString addr_string;
+
+ /* First, we must copy all of our data to a safe place, */
+ /* in case a serial interrupt comes in and changes it. */
+ int tx_left = strip_info->tx_left;
+ unsigned long rx_average_pps = strip_info->rx_average_pps;
+ unsigned long tx_average_pps = strip_info->tx_average_pps;
+ unsigned long sx_average_pps = strip_info->sx_average_pps;
+ int working = strip_info->working;
+ int firmware_level = strip_info->firmware_level;
+ long watchdog_doprobe = strip_info->watchdog_doprobe;
+ long watchdog_doreset = strip_info->watchdog_doreset;
+ long gratuitous_arp = strip_info->gratuitous_arp;
+ long arp_interval = strip_info->arp_interval;
+ FirmwareVersion firmware_version = strip_info->firmware_version;
+ SerialNumber serial_number = strip_info->serial_number;
+ BatteryVoltage battery_voltage = strip_info->battery_voltage;
+ char *if_name = strip_info->dev->name;
+ MetricomAddress true_dev_addr = strip_info->true_dev_addr;
+ MetricomAddress dev_dev_addr =
+ *(MetricomAddress *) strip_info->dev->dev_addr;
+ int manual_dev_addr = strip_info->manual_dev_addr;
+#ifdef EXT_COUNTERS
+ unsigned long rx_bytes = strip_info->rx_bytes;
+ unsigned long tx_bytes = strip_info->tx_bytes;
+ unsigned long rx_rbytes = strip_info->rx_rbytes;
+ unsigned long tx_rbytes = strip_info->tx_rbytes;
+ unsigned long rx_sbytes = strip_info->rx_sbytes;
+ unsigned long tx_sbytes = strip_info->tx_sbytes;
+ unsigned long rx_ebytes = strip_info->rx_ebytes;
+ unsigned long tx_ebytes = strip_info->tx_ebytes;
+#endif
+
+ seq_printf(seq, "\nInterface name\t\t%s\n", if_name);
+ seq_printf(seq, " Radio working:\t\t%s\n", working ? "Yes" : "No");
+ radio_address_to_string(&true_dev_addr, &addr_string);
+ seq_printf(seq, " Radio address:\t\t%s\n", addr_string.c);
+ if (manual_dev_addr) {
+ radio_address_to_string(&dev_dev_addr, &addr_string);
+ seq_printf(seq, " Device address:\t%s\n", addr_string.c);
+ }
+ seq_printf(seq, " Firmware version:\t%s", !working ? "Unknown" :
+ !firmware_level ? "Should be upgraded" :
+ firmware_version.c);
+ if (firmware_level >= ChecksummedMessages)
+ seq_printf(seq, " (Checksums Enabled)");
+ seq_printf(seq, "\n");
+ seq_printf(seq, " Serial number:\t\t%s\n", serial_number.c);
+ seq_printf(seq, " Battery voltage:\t%s\n", battery_voltage.c);
+ seq_printf(seq, " Transmit queue (bytes):%d\n", tx_left);
+ seq_printf(seq, " Receive packet rate: %ld packets per second\n",
+ rx_average_pps / 8);
+ seq_printf(seq, " Transmit packet rate: %ld packets per second\n",
+ tx_average_pps / 8);
+ seq_printf(seq, " Sent packet rate: %ld packets per second\n",
+ sx_average_pps / 8);
+ seq_printf(seq, " Next watchdog probe:\t%s\n",
+ time_delta(temp, watchdog_doprobe));
+ seq_printf(seq, " Next watchdog reset:\t%s\n",
+ time_delta(temp, watchdog_doreset));
+ seq_printf(seq, " Next gratuitous ARP:\t");
+
+ if (!memcmp
+ (strip_info->dev->dev_addr, zero_address.c,
+ sizeof(zero_address)))
+ seq_printf(seq, "Disabled\n");
+ else {
+ seq_printf(seq, "%s\n", time_delta(temp, gratuitous_arp));
+ seq_printf(seq, " Next ARP interval:\t%ld seconds\n",
+ JIFFIE_TO_SEC(arp_interval));
+ }
+
+ if (working) {
+#ifdef EXT_COUNTERS
+ seq_printf(seq, "\n");
+ seq_printf(seq,
+ " Total bytes: \trx:\t%lu\ttx:\t%lu\n",
+ rx_bytes, tx_bytes);
+ seq_printf(seq,
+ " thru radio: \trx:\t%lu\ttx:\t%lu\n",
+ rx_rbytes, tx_rbytes);
+ seq_printf(seq,
+ " thru serial port: \trx:\t%lu\ttx:\t%lu\n",
+ rx_sbytes, tx_sbytes);
+ seq_printf(seq,
+ " Total stat/err bytes:\trx:\t%lu\ttx:\t%lu\n",
+ rx_ebytes, tx_ebytes);
+#endif
+ strip_seq_neighbours(seq, &strip_info->poletops,
+ "Poletops:");
+ strip_seq_neighbours(seq, &strip_info->portables,
+ "Portables:");
+ }
+}
+
+/*
+ * This function is exports status information from the STRIP driver through
+ * the /proc file system.
+ */
+static int strip_seq_show(struct seq_file *seq, void *v)
+{
+ if (v == SEQ_START_TOKEN)
+ seq_printf(seq, "strip_version: %s\n", StripVersion);
+ else
+ strip_seq_status_info(seq, (const struct strip *)v);
+ return 0;
+}
+
+
+static const struct seq_operations strip_seq_ops = {
+ .start = strip_seq_start,
+ .next = strip_seq_next,
+ .stop = strip_seq_stop,
+ .show = strip_seq_show,
+};
+
+static int strip_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &strip_seq_ops);
+}
+
+static const struct file_operations strip_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = strip_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+#endif
+
+
+
+/************************************************************************/
+/* Sending routines */
+
+static void ResetRadio(struct strip *strip_info)
+{
+ struct tty_struct *tty = strip_info->tty;
+ static const char init[] = "ate0q1dt**starmode\r**";
+ StringDescriptor s = { init, sizeof(init) - 1 };
+
+ /*
+ * If the radio isn't working anymore,
+ * we should clear the old status information.
+ */
+ if (strip_info->working) {
+ printk(KERN_INFO "%s: No response: Resetting radio.\n",
+ strip_info->dev->name);
+ strip_info->firmware_version.c[0] = '\0';
+ strip_info->serial_number.c[0] = '\0';
+ strip_info->battery_voltage.c[0] = '\0';
+ strip_info->portables.num_nodes = 0;
+ do_gettimeofday(&strip_info->portables.timestamp);
+ strip_info->poletops.num_nodes = 0;
+ do_gettimeofday(&strip_info->poletops.timestamp);
+ }
+
+ strip_info->pps_timer = jiffies;
+ strip_info->rx_pps_count = 0;
+ strip_info->tx_pps_count = 0;
+ strip_info->sx_pps_count = 0;
+ strip_info->rx_average_pps = 0;
+ strip_info->tx_average_pps = 0;
+ strip_info->sx_average_pps = 0;
+
+ /* Mark radio address as unknown */
+ *(MetricomAddress *) & strip_info->true_dev_addr = zero_address;
+ if (!strip_info->manual_dev_addr)
+ *(MetricomAddress *) strip_info->dev->dev_addr =
+ zero_address;
+ strip_info->working = FALSE;
+ strip_info->firmware_level = NoStructure;
+ strip_info->next_command = CompatibilityCommand;
+ strip_info->watchdog_doprobe = jiffies + 10 * HZ;
+ strip_info->watchdog_doreset = jiffies + 1 * HZ;
+
+ /* If the user has selected a baud rate above 38.4 see what magic we have to do */
+ if (strip_info->user_baud > 38400) {
+ /*
+ * Subtle stuff: Pay attention :-)
+ * If the serial port is currently at the user's selected (>38.4) rate,
+ * then we temporarily switch to 19.2 and issue the ATS304 command
+ * to tell the radio to switch to the user's selected rate.
+ * If the serial port is not currently at that rate, that means we just
+ * issued the ATS304 command last time through, so this time we restore
+ * the user's selected rate and issue the normal starmode reset string.
+ */
+ if (strip_info->user_baud == tty_get_baud_rate(tty)) {
+ static const char b0[] = "ate0q1s304=57600\r";
+ static const char b1[] = "ate0q1s304=115200\r";
+ static const StringDescriptor baudstring[2] =
+ { {b0, sizeof(b0) - 1}
+ , {b1, sizeof(b1) - 1}
+ };
+ set_baud(tty, 19200);
+ if (strip_info->user_baud == 57600)
+ s = baudstring[0];
+ else if (strip_info->user_baud == 115200)
+ s = baudstring[1];
+ else
+ s = baudstring[1]; /* For now */
+ } else
+ set_baud(tty, strip_info->user_baud);
+ }
+
+ tty->ops->write(tty, s.string, s.length);
+#ifdef EXT_COUNTERS
+ strip_info->tx_ebytes += s.length;
+#endif
+}
+
+/*
+ * Called by the driver when there's room for more data. If we have
+ * more packets to send, we send them here.
+ */
+
+static void strip_write_some_more(struct tty_struct *tty)
+{
+ struct strip *strip_info = tty->disc_data;
+
+ /* First make sure we're connected. */
+ if (!strip_info || strip_info->magic != STRIP_MAGIC ||
+ !netif_running(strip_info->dev))
+ return;
+
+ if (strip_info->tx_left > 0) {
+ int num_written =
+ tty->ops->write(tty, strip_info->tx_head,
+ strip_info->tx_left);
+ strip_info->tx_left -= num_written;
+ strip_info->tx_head += num_written;
+#ifdef EXT_COUNTERS
+ strip_info->tx_sbytes += num_written;
+#endif
+ } else { /* Else start transmission of another packet */
+
+ clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+ strip_unlock(strip_info);
+ }
+}
+
+static __u8 *add_checksum(__u8 * buffer, __u8 * end)
+{
+ __u16 sum = 0;
+ __u8 *p = buffer;
+ while (p < end)
+ sum += *p++;
+ end[3] = hextable[sum & 0xF];
+ sum >>= 4;
+ end[2] = hextable[sum & 0xF];
+ sum >>= 4;
+ end[1] = hextable[sum & 0xF];
+ sum >>= 4;
+ end[0] = hextable[sum & 0xF];
+ return (end + 4);
+}
+
+static unsigned char *strip_make_packet(unsigned char *buffer,
+ struct strip *strip_info,
+ struct sk_buff *skb)
+{
+ __u8 *ptr = buffer;
+ __u8 *stuffstate = NULL;
+ STRIP_Header *header = (STRIP_Header *) skb->data;
+ MetricomAddress haddr = header->dst_addr;
+ int len = skb->len - sizeof(STRIP_Header);
+ MetricomKey key;
+
+ /*HexDump("strip_make_packet", strip_info, skb->data, skb->data + skb->len); */
+
+ if (header->protocol == htons(ETH_P_IP))
+ key = SIP0Key;
+ else if (header->protocol == htons(ETH_P_ARP))
+ key = ARP0Key;
+ else {
+ printk(KERN_ERR
+ "%s: strip_make_packet: Unknown packet type 0x%04X\n",
+ strip_info->dev->name, ntohs(header->protocol));
+ return (NULL);
+ }
+
+ if (len > strip_info->mtu) {
+ printk(KERN_ERR
+ "%s: Dropping oversized transmit packet: %d bytes\n",
+ strip_info->dev->name, len);
+ return (NULL);
+ }
+
+ /*
+ * If we're sending to ourselves, discard the packet.
+ * (Metricom radios choke if they try to send a packet to their own address.)
+ */
+ if (!memcmp(haddr.c, strip_info->true_dev_addr.c, sizeof(haddr))) {
+ printk(KERN_ERR "%s: Dropping packet addressed to self\n",
+ strip_info->dev->name);
+ return (NULL);
+ }
+
+ /*
+ * If this is a broadcast packet, send it to our designated Metricom
+ * 'broadcast hub' radio (First byte of address being 0xFF means broadcast)
+ */
+ if (haddr.c[0] == 0xFF) {
+ __be32 brd = 0;
+ struct in_device *in_dev;
+
+ rcu_read_lock();
+ in_dev = __in_dev_get_rcu(strip_info->dev);
+ if (in_dev == NULL) {
+ rcu_read_unlock();
+ return NULL;
+ }
+ if (in_dev->ifa_list)
+ brd = in_dev->ifa_list->ifa_broadcast;
+ rcu_read_unlock();
+
+ /* arp_query returns 1 if it succeeds in looking up the address, 0 if it fails */
+ if (!arp_query(haddr.c, brd, strip_info->dev)) {
+ printk(KERN_ERR
+ "%s: Unable to send packet (no broadcast hub configured)\n",
+ strip_info->dev->name);
+ return (NULL);
+ }
+ /*
+ * If we are the broadcast hub, don't bother sending to ourselves.
+ * (Metricom radios choke if they try to send a packet to their own address.)
+ */
+ if (!memcmp
+ (haddr.c, strip_info->true_dev_addr.c, sizeof(haddr)))
+ return (NULL);
+ }
+
+ *ptr++ = 0x0D;
+ *ptr++ = '*';
+ *ptr++ = hextable[haddr.c[2] >> 4];
+ *ptr++ = hextable[haddr.c[2] & 0xF];
+ *ptr++ = hextable[haddr.c[3] >> 4];
+ *ptr++ = hextable[haddr.c[3] & 0xF];
+ *ptr++ = '-';
+ *ptr++ = hextable[haddr.c[4] >> 4];
+ *ptr++ = hextable[haddr.c[4] & 0xF];
+ *ptr++ = hextable[haddr.c[5] >> 4];
+ *ptr++ = hextable[haddr.c[5] & 0xF];
+ *ptr++ = '*';
+ *ptr++ = key.c[0];
+ *ptr++ = key.c[1];
+ *ptr++ = key.c[2];
+ *ptr++ = key.c[3];
+
+ ptr =
+ StuffData(skb->data + sizeof(STRIP_Header), len, ptr,
+ &stuffstate);
+
+ if (strip_info->firmware_level >= ChecksummedMessages)
+ ptr = add_checksum(buffer + 1, ptr);
+
+ *ptr++ = 0x0D;
+ return (ptr);
+}
+
+static void strip_send(struct strip *strip_info, struct sk_buff *skb)
+{
+ MetricomAddress haddr;
+ unsigned char *ptr = strip_info->tx_buff;
+ int doreset = (long) jiffies - strip_info->watchdog_doreset >= 0;
+ int doprobe = (long) jiffies - strip_info->watchdog_doprobe >= 0
+ && !doreset;
+ __be32 addr, brd;
+
+ /*
+ * 1. If we have a packet, encapsulate it and put it in the buffer
+ */
+ if (skb) {
+ char *newptr = strip_make_packet(ptr, strip_info, skb);
+ strip_info->tx_pps_count++;
+ if (!newptr)
+ strip_info->tx_dropped++;
+ else {
+ ptr = newptr;
+ strip_info->sx_pps_count++;
+ strip_info->tx_packets++; /* Count another successful packet */
+#ifdef EXT_COUNTERS
+ strip_info->tx_bytes += skb->len;
+ strip_info->tx_rbytes += ptr - strip_info->tx_buff;
+#endif
+ /*DumpData("Sending:", strip_info, strip_info->tx_buff, ptr); */
+ /*HexDump("Sending", strip_info, strip_info->tx_buff, ptr); */
+ }
+ }
+
+ /*
+ * 2. If it is time for another tickle, tack it on, after the packet
+ */
+ if (doprobe) {
+ StringDescriptor ts = CommandString[strip_info->next_command];
+#if TICKLE_TIMERS
+ {
+ struct timeval tv;
+ do_gettimeofday(&tv);
+ printk(KERN_INFO "**** Sending tickle string %d at %02d.%06d\n",
+ strip_info->next_command, tv.tv_sec % 100,
+ tv.tv_usec);
+ }
+#endif
+ if (ptr == strip_info->tx_buff)
+ *ptr++ = 0x0D;
+
+ *ptr++ = '*'; /* First send "**" to provoke an error message */
+ *ptr++ = '*';
+
+ /* Then add the command */
+ memcpy(ptr, ts.string, ts.length);
+
+ /* Add a checksum ? */
+ if (strip_info->firmware_level < ChecksummedMessages)
+ ptr += ts.length;
+ else
+ ptr = add_checksum(ptr, ptr + ts.length);
+
+ *ptr++ = 0x0D; /* Terminate the command with a <CR> */
+
+ /* Cycle to next periodic command? */
+ if (strip_info->firmware_level >= StructuredMessages)
+ if (++strip_info->next_command >=
+ ARRAY_SIZE(CommandString))
+ strip_info->next_command = 0;
+#ifdef EXT_COUNTERS
+ strip_info->tx_ebytes += ts.length;
+#endif
+ strip_info->watchdog_doprobe = jiffies + 10 * HZ;
+ strip_info->watchdog_doreset = jiffies + 1 * HZ;
+ /*printk(KERN_INFO "%s: Routine radio test.\n", strip_info->dev->name); */
+ }
+
+ /*
+ * 3. Set up the strip_info ready to send the data (if any).
+ */
+ strip_info->tx_head = strip_info->tx_buff;
+ strip_info->tx_left = ptr - strip_info->tx_buff;
+ set_bit(TTY_DO_WRITE_WAKEUP, &strip_info->tty->flags);
+ /*
+ * 4. Debugging check to make sure we're not overflowing the buffer.
+ */
+ if (strip_info->tx_size - strip_info->tx_left < 20)
+ printk(KERN_ERR "%s: Sending%5d bytes;%5d bytes free.\n",
+ strip_info->dev->name, strip_info->tx_left,
+ strip_info->tx_size - strip_info->tx_left);
+
+ /*
+ * 5. If watchdog has expired, reset the radio. Note: if there's data waiting in
+ * the buffer, strip_write_some_more will send it after the reset has finished
+ */
+ if (doreset) {
+ ResetRadio(strip_info);
+ return;
+ }
+
+ if (1) {
+ struct in_device *in_dev;
+
+ brd = addr = 0;
+ rcu_read_lock();
+ in_dev = __in_dev_get_rcu(strip_info->dev);
+ if (in_dev) {
+ if (in_dev->ifa_list) {
+ brd = in_dev->ifa_list->ifa_broadcast;
+ addr = in_dev->ifa_list->ifa_local;
+ }
+ }
+ rcu_read_unlock();
+ }
+
+
+ /*
+ * 6. If it is time for a periodic ARP, queue one up to be sent.
+ * We only do this if:
+ * 1. The radio is working
+ * 2. It's time to send another periodic ARP
+ * 3. We really know what our address is (and it is not manually set to zero)
+ * 4. We have a designated broadcast address configured
+ * If we queue up an ARP packet when we don't have a designated broadcast
+ * address configured, then the packet will just have to be discarded in
+ * strip_make_packet. This is not fatal, but it causes misleading information
+ * to be displayed in tcpdump. tcpdump will report that periodic APRs are
+ * being sent, when in fact they are not, because they are all being dropped
+ * in the strip_make_packet routine.
+ */
+ if (strip_info->working
+ && (long) jiffies - strip_info->gratuitous_arp >= 0
+ && memcmp(strip_info->dev->dev_addr, zero_address.c,
+ sizeof(zero_address))
+ && arp_query(haddr.c, brd, strip_info->dev)) {
+ /*printk(KERN_INFO "%s: Sending gratuitous ARP with interval %ld\n",
+ strip_info->dev->name, strip_info->arp_interval / HZ); */
+ strip_info->gratuitous_arp =
+ jiffies + strip_info->arp_interval;
+ strip_info->arp_interval *= 2;
+ if (strip_info->arp_interval > MaxARPInterval)
+ strip_info->arp_interval = MaxARPInterval;
+ if (addr)
+ arp_send(ARPOP_REPLY, ETH_P_ARP, addr, /* Target address of ARP packet is our address */
+ strip_info->dev, /* Device to send packet on */
+ addr, /* Source IP address this ARP packet comes from */
+ NULL, /* Destination HW address is NULL (broadcast it) */
+ strip_info->dev->dev_addr, /* Source HW address is our HW address */
+ strip_info->dev->dev_addr); /* Target HW address is our HW address (redundant) */
+ }
+
+ /*
+ * 7. All ready. Start the transmission
+ */
+ strip_write_some_more(strip_info->tty);
+}
+
+/* Encapsulate a datagram and kick it into a TTY queue. */
+static netdev_tx_t strip_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct strip *strip_info = netdev_priv(dev);
+
+ if (!netif_running(dev)) {
+ printk(KERN_ERR "%s: xmit call when iface is down\n",
+ dev->name);
+ return NETDEV_TX_BUSY;
+ }
+
+ netif_stop_queue(dev);
+
+ del_timer(&strip_info->idle_timer);
+
+
+ if (time_after(jiffies, strip_info->pps_timer + HZ)) {
+ unsigned long t = jiffies - strip_info->pps_timer;
+ unsigned long rx_pps_count =
+ DIV_ROUND_CLOSEST(strip_info->rx_pps_count*HZ*8, t);
+ unsigned long tx_pps_count =
+ DIV_ROUND_CLOSEST(strip_info->tx_pps_count*HZ*8, t);
+ unsigned long sx_pps_count =
+ DIV_ROUND_CLOSEST(strip_info->sx_pps_count*HZ*8, t);
+
+ strip_info->pps_timer = jiffies;
+ strip_info->rx_pps_count = 0;
+ strip_info->tx_pps_count = 0;
+ strip_info->sx_pps_count = 0;
+
+ strip_info->rx_average_pps = (strip_info->rx_average_pps + rx_pps_count + 1) / 2;
+ strip_info->tx_average_pps = (strip_info->tx_average_pps + tx_pps_count + 1) / 2;
+ strip_info->sx_average_pps = (strip_info->sx_average_pps + sx_pps_count + 1) / 2;
+
+ if (rx_pps_count / 8 >= 10)
+ printk(KERN_INFO "%s: WARNING: Receiving %ld packets per second.\n",
+ strip_info->dev->name, rx_pps_count / 8);
+ if (tx_pps_count / 8 >= 10)
+ printk(KERN_INFO "%s: WARNING: Tx %ld packets per second.\n",
+ strip_info->dev->name, tx_pps_count / 8);
+ if (sx_pps_count / 8 >= 10)
+ printk(KERN_INFO "%s: WARNING: Sending %ld packets per second.\n",
+ strip_info->dev->name, sx_pps_count / 8);
+ }
+
+ spin_lock_bh(&strip_lock);
+
+ strip_send(strip_info, skb);
+
+ spin_unlock_bh(&strip_lock);
+
+ if (skb)
+ dev_kfree_skb(skb);
+ return NETDEV_TX_OK;
+}
+
+/*
+ * IdleTask periodically calls strip_xmit, so even when we have no IP packets
+ * to send for an extended period of time, the watchdog processing still gets
+ * done to ensure that the radio stays in Starmode
+ */
+
+static void strip_IdleTask(unsigned long parameter)
+{
+ strip_xmit(NULL, (struct net_device *) parameter);
+}
+
+/*
+ * Create the MAC header for an arbitrary protocol layer
+ *
+ * saddr!=NULL means use this specific address (n/a for Metricom)
+ * saddr==NULL means use default device source address
+ * daddr!=NULL means use this destination address
+ * daddr==NULL means leave destination address alone
+ * (e.g. unresolved arp -- kernel will call
+ * rebuild_header later to fill in the address)
+ */
+
+static int strip_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, const void *daddr,
+ const void *saddr, unsigned len)
+{
+ struct strip *strip_info = netdev_priv(dev);
+ STRIP_Header *header = (STRIP_Header *) skb_push(skb, sizeof(STRIP_Header));
+
+ /*printk(KERN_INFO "%s: strip_header 0x%04X %s\n", dev->name, type,
+ type == ETH_P_IP ? "IP" : type == ETH_P_ARP ? "ARP" : ""); */
+
+ header->src_addr = strip_info->true_dev_addr;
+ header->protocol = htons(type);
+
+ /*HexDump("strip_header", netdev_priv(dev), skb->data, skb->data + skb->len); */
+
+ if (!daddr)
+ return (-dev->hard_header_len);
+
+ header->dst_addr = *(MetricomAddress *) daddr;
+ return (dev->hard_header_len);
+}
+
+/*
+ * Rebuild the MAC header. This is called after an ARP
+ * (or in future other address resolution) has completed on this
+ * sk_buff. We now let ARP fill in the other fields.
+ * I think this should return zero if packet is ready to send,
+ * or non-zero if it needs more time to do an address lookup
+ */
+
+static int strip_rebuild_header(struct sk_buff *skb)
+{
+#ifdef CONFIG_INET
+ STRIP_Header *header = (STRIP_Header *) skb->data;
+
+ /* Arp find returns zero if if knows the address, */
+ /* or if it doesn't know the address it sends an ARP packet and returns non-zero */
+ return arp_find(header->dst_addr.c, skb) ? 1 : 0;
+#else
+ return 0;
+#endif
+}
+
+
+/************************************************************************/
+/* Receiving routines */
+
+/*
+ * This function parses the response to the ATS300? command,
+ * extracting the radio version and serial number.
+ */
+static void get_radio_version(struct strip *strip_info, __u8 * ptr, __u8 * end)
+{
+ __u8 *p, *value_begin, *value_end;
+ int len;
+
+ /* Determine the beginning of the second line of the payload */
+ p = ptr;
+ while (p < end && *p != 10)
+ p++;
+ if (p >= end)
+ return;
+ p++;
+ value_begin = p;
+
+ /* Determine the end of line */
+ while (p < end && *p != 10)
+ p++;
+ if (p >= end)
+ return;
+ value_end = p;
+ p++;
+
+ len = value_end - value_begin;
+ len = min_t(int, len, sizeof(FirmwareVersion) - 1);
+ if (strip_info->firmware_version.c[0] == 0)
+ printk(KERN_INFO "%s: Radio Firmware: %.*s\n",
+ strip_info->dev->name, len, value_begin);
+ sprintf(strip_info->firmware_version.c, "%.*s", len, value_begin);
+
+ /* Look for the first colon */
+ while (p < end && *p != ':')
+ p++;
+ if (p >= end)
+ return;
+ /* Skip over the space */
+ p += 2;
+ len = sizeof(SerialNumber) - 1;
+ if (p + len <= end) {
+ sprintf(strip_info->serial_number.c, "%.*s", len, p);
+ } else {
+ printk(KERN_DEBUG
+ "STRIP: radio serial number shorter (%zd) than expected (%d)\n",
+ end - p, len);
+ }
+}
+
+/*
+ * This function parses the response to the ATS325? command,
+ * extracting the radio battery voltage.
+ */
+static void get_radio_voltage(struct strip *strip_info, __u8 * ptr, __u8 * end)
+{
+ int len;
+
+ len = sizeof(BatteryVoltage) - 1;
+ if (ptr + len <= end) {
+ sprintf(strip_info->battery_voltage.c, "%.*s", len, ptr);
+ } else {
+ printk(KERN_DEBUG
+ "STRIP: radio voltage string shorter (%zd) than expected (%d)\n",
+ end - ptr, len);
+ }
+}
+
+/*
+ * This function parses the responses to the AT~LA and ATS311 commands,
+ * which list the radio's neighbours.
+ */
+static void get_radio_neighbours(MetricomNodeTable * table, __u8 * ptr, __u8 * end)
+{
+ table->num_nodes = 0;
+ while (ptr < end && table->num_nodes < NODE_TABLE_SIZE) {
+ MetricomNode *node = &table->node[table->num_nodes++];
+ char *dst = node->c, *limit = dst + sizeof(*node) - 1;
+ while (ptr < end && *ptr <= 32)
+ ptr++;
+ while (ptr < end && dst < limit && *ptr != 10)
+ *dst++ = *ptr++;
+ *dst++ = 0;
+ while (ptr < end && ptr[-1] != 10)
+ ptr++;
+ }
+ do_gettimeofday(&table->timestamp);
+}
+
+static int get_radio_address(struct strip *strip_info, __u8 * p)
+{
+ MetricomAddress addr;
+
+ if (string_to_radio_address(&addr, p))
+ return (1);
+
+ /* See if our radio address has changed */
+ if (memcmp(strip_info->true_dev_addr.c, addr.c, sizeof(addr))) {
+ MetricomAddressString addr_string;
+ radio_address_to_string(&addr, &addr_string);
+ printk(KERN_INFO "%s: Radio address = %s\n",
+ strip_info->dev->name, addr_string.c);
+ strip_info->true_dev_addr = addr;
+ if (!strip_info->manual_dev_addr)
+ *(MetricomAddress *) strip_info->dev->dev_addr =
+ addr;
+ /* Give the radio a few seconds to get its head straight, then send an arp */
+ strip_info->gratuitous_arp = jiffies + 15 * HZ;
+ strip_info->arp_interval = 1 * HZ;
+ }
+ return (0);
+}
+
+static int verify_checksum(struct strip *strip_info)
+{
+ __u8 *p = strip_info->sx_buff;
+ __u8 *end = strip_info->sx_buff + strip_info->sx_count - 4;
+ u_short sum =
+ (READHEX16(end[0]) << 12) | (READHEX16(end[1]) << 8) |
+ (READHEX16(end[2]) << 4) | (READHEX16(end[3]));
+ while (p < end)
+ sum -= *p++;
+ if (sum == 0 && strip_info->firmware_level == StructuredMessages) {
+ strip_info->firmware_level = ChecksummedMessages;
+ printk(KERN_INFO "%s: Radio provides message checksums\n",
+ strip_info->dev->name);
+ }
+ return (sum == 0);
+}
+
+static void RecvErr(char *msg, struct strip *strip_info)
+{
+ __u8 *ptr = strip_info->sx_buff;
+ __u8 *end = strip_info->sx_buff + strip_info->sx_count;
+ DumpData(msg, strip_info, ptr, end);
+ strip_info->rx_errors++;
+}
+
+static void RecvErr_Message(struct strip *strip_info, __u8 * sendername,
+ const __u8 * msg, u_long len)
+{
+ if (has_prefix(msg, len, "001")) { /* Not in StarMode! */
+ RecvErr("Error Msg:", strip_info);
+ printk(KERN_INFO "%s: Radio %s is not in StarMode\n",
+ strip_info->dev->name, sendername);
+ }
+
+ else if (has_prefix(msg, len, "002")) { /* Remap handle */
+ /* We ignore "Remap handle" messages for now */
+ }
+
+ else if (has_prefix(msg, len, "003")) { /* Can't resolve name */
+ RecvErr("Error Msg:", strip_info);
+ printk(KERN_INFO "%s: Destination radio name is unknown\n",
+ strip_info->dev->name);
+ }
+
+ else if (has_prefix(msg, len, "004")) { /* Name too small or missing */
+ strip_info->watchdog_doreset = jiffies + LongTime;
+#if TICKLE_TIMERS
+ {
+ struct timeval tv;
+ do_gettimeofday(&tv);
+ printk(KERN_INFO
+ "**** Got ERR_004 response at %02d.%06d\n",
+ tv.tv_sec % 100, tv.tv_usec);
+ }
+#endif
+ if (!strip_info->working) {
+ strip_info->working = TRUE;
+ printk(KERN_INFO "%s: Radio now in starmode\n",
+ strip_info->dev->name);
+ /*
+ * If the radio has just entered a working state, we should do our first
+ * probe ASAP, so that we find out our radio address etc. without delay.
+ */
+ strip_info->watchdog_doprobe = jiffies;
+ }
+ if (strip_info->firmware_level == NoStructure && sendername) {
+ strip_info->firmware_level = StructuredMessages;
+ strip_info->next_command = 0; /* Try to enable checksums ASAP */
+ printk(KERN_INFO
+ "%s: Radio provides structured messages\n",
+ strip_info->dev->name);
+ }
+ if (strip_info->firmware_level >= StructuredMessages) {
+ /*
+ * If this message has a valid checksum on the end, then the call to verify_checksum
+ * will elevate the firmware_level to ChecksummedMessages for us. (The actual return
+ * code from verify_checksum is ignored here.)
+ */
+ verify_checksum(strip_info);
+ /*
+ * If the radio has structured messages but we don't yet have all our information about it,
+ * we should do probes without delay, until we have gathered all the information
+ */
+ if (!GOT_ALL_RADIO_INFO(strip_info))
+ strip_info->watchdog_doprobe = jiffies;
+ }
+ }
+
+ else if (has_prefix(msg, len, "005")) /* Bad count specification */
+ RecvErr("Error Msg:", strip_info);
+
+ else if (has_prefix(msg, len, "006")) /* Header too big */
+ RecvErr("Error Msg:", strip_info);
+
+ else if (has_prefix(msg, len, "007")) { /* Body too big */
+ RecvErr("Error Msg:", strip_info);
+ printk(KERN_ERR
+ "%s: Error! Packet size too big for radio.\n",
+ strip_info->dev->name);
+ }
+
+ else if (has_prefix(msg, len, "008")) { /* Bad character in name */
+ RecvErr("Error Msg:", strip_info);
+ printk(KERN_ERR
+ "%s: Radio name contains illegal character\n",
+ strip_info->dev->name);
+ }
+
+ else if (has_prefix(msg, len, "009")) /* No count or line terminator */
+ RecvErr("Error Msg:", strip_info);
+
+ else if (has_prefix(msg, len, "010")) /* Invalid checksum */
+ RecvErr("Error Msg:", strip_info);
+
+ else if (has_prefix(msg, len, "011")) /* Checksum didn't match */
+ RecvErr("Error Msg:", strip_info);
+
+ else if (has_prefix(msg, len, "012")) /* Failed to transmit packet */
+ RecvErr("Error Msg:", strip_info);
+
+ else
+ RecvErr("Error Msg:", strip_info);
+}
+
+static void process_AT_response(struct strip *strip_info, __u8 * ptr,
+ __u8 * end)
+{
+ u_long len;
+ __u8 *p = ptr;
+ while (p < end && p[-1] != 10)
+ p++; /* Skip past first newline character */
+ /* Now ptr points to the AT command, and p points to the text of the response. */
+ len = p - ptr;
+
+#if TICKLE_TIMERS
+ {
+ struct timeval tv;
+ do_gettimeofday(&tv);
+ printk(KERN_INFO "**** Got AT response %.7s at %02d.%06d\n",
+ ptr, tv.tv_sec % 100, tv.tv_usec);
+ }
+#endif
+
+ if (has_prefix(ptr, len, "ATS300?"))
+ get_radio_version(strip_info, p, end);
+ else if (has_prefix(ptr, len, "ATS305?"))
+ get_radio_address(strip_info, p);
+ else if (has_prefix(ptr, len, "ATS311?"))
+ get_radio_neighbours(&strip_info->poletops, p, end);
+ else if (has_prefix(ptr, len, "ATS319=7"))
+ verify_checksum(strip_info);
+ else if (has_prefix(ptr, len, "ATS325?"))
+ get_radio_voltage(strip_info, p, end);
+ else if (has_prefix(ptr, len, "AT~LA"))
+ get_radio_neighbours(&strip_info->portables, p, end);
+ else
+ RecvErr("Unknown AT Response:", strip_info);
+}
+
+static void process_ACK(struct strip *strip_info, __u8 * ptr, __u8 * end)
+{
+ /* Currently we don't do anything with ACKs from the radio */
+}
+
+static void process_Info(struct strip *strip_info, __u8 * ptr, __u8 * end)
+{
+ if (ptr + 16 > end)
+ RecvErr("Bad Info Msg:", strip_info);
+}
+
+static struct net_device *get_strip_dev(struct strip *strip_info)
+{
+ /* If our hardware address is *manually set* to zero, and we know our */
+ /* real radio hardware address, try to find another strip device that has been */
+ /* manually set to that address that we can 'transfer ownership' of this packet to */
+ if (strip_info->manual_dev_addr &&
+ !memcmp(strip_info->dev->dev_addr, zero_address.c,
+ sizeof(zero_address))
+ && memcmp(&strip_info->true_dev_addr, zero_address.c,
+ sizeof(zero_address))) {
+ struct net_device *dev;
+ read_lock_bh(&dev_base_lock);
+ for_each_netdev(&init_net, dev) {
+ if (dev->type == strip_info->dev->type &&
+ !memcmp(dev->dev_addr,
+ &strip_info->true_dev_addr,
+ sizeof(MetricomAddress))) {
+ printk(KERN_INFO
+ "%s: Transferred packet ownership to %s.\n",
+ strip_info->dev->name, dev->name);
+ read_unlock_bh(&dev_base_lock);
+ return (dev);
+ }
+ }
+ read_unlock_bh(&dev_base_lock);
+ }
+ return (strip_info->dev);
+}
+
+/*
+ * Send one completely decapsulated datagram to the next layer.
+ */
+
+static void deliver_packet(struct strip *strip_info, STRIP_Header * header,
+ __u16 packetlen)
+{
+ struct sk_buff *skb = dev_alloc_skb(sizeof(STRIP_Header) + packetlen);
+ if (!skb) {
+ printk(KERN_ERR "%s: memory squeeze, dropping packet.\n",
+ strip_info->dev->name);
+ strip_info->rx_dropped++;
+ } else {
+ memcpy(skb_put(skb, sizeof(STRIP_Header)), header,
+ sizeof(STRIP_Header));
+ memcpy(skb_put(skb, packetlen), strip_info->rx_buff,
+ packetlen);
+ skb->dev = get_strip_dev(strip_info);
+ skb->protocol = header->protocol;
+ skb_reset_mac_header(skb);
+
+ /* Having put a fake header on the front of the sk_buff for the */
+ /* benefit of tools like tcpdump, skb_pull now 'consumes' that */
+ /* fake header before we hand the packet up to the next layer. */
+ skb_pull(skb, sizeof(STRIP_Header));
+
+ /* Finally, hand the packet up to the next layer (e.g. IP or ARP, etc.) */
+ strip_info->rx_packets++;
+ strip_info->rx_pps_count++;
+#ifdef EXT_COUNTERS
+ strip_info->rx_bytes += packetlen;
+#endif
+ netif_rx(skb);
+ }
+}
+
+static void process_IP_packet(struct strip *strip_info,
+ STRIP_Header * header, __u8 * ptr,
+ __u8 * end)
+{
+ __u16 packetlen;
+
+ /* Decode start of the IP packet header */
+ ptr = UnStuffData(ptr, end, strip_info->rx_buff, 4);
+ if (!ptr) {
+ RecvErr("IP Packet too short", strip_info);
+ return;
+ }
+
+ packetlen = ((__u16) strip_info->rx_buff[2] << 8) | strip_info->rx_buff[3];
+
+ if (packetlen > MAX_RECV_MTU) {
+ printk(KERN_INFO "%s: Dropping oversized received IP packet: %d bytes\n",
+ strip_info->dev->name, packetlen);
+ strip_info->rx_dropped++;
+ return;
+ }
+
+ /*printk(KERN_INFO "%s: Got %d byte IP packet\n", strip_info->dev->name, packetlen); */
+
+ /* Decode remainder of the IP packet */
+ ptr =
+ UnStuffData(ptr, end, strip_info->rx_buff + 4, packetlen - 4);
+ if (!ptr) {
+ RecvErr("IP Packet too short", strip_info);
+ return;
+ }
+
+ if (ptr < end) {
+ RecvErr("IP Packet too long", strip_info);
+ return;
+ }
+
+ header->protocol = htons(ETH_P_IP);
+
+ deliver_packet(strip_info, header, packetlen);
+}
+
+static void process_ARP_packet(struct strip *strip_info,
+ STRIP_Header * header, __u8 * ptr,
+ __u8 * end)
+{
+ __u16 packetlen;
+ struct arphdr *arphdr = (struct arphdr *) strip_info->rx_buff;
+
+ /* Decode start of the ARP packet */
+ ptr = UnStuffData(ptr, end, strip_info->rx_buff, 8);
+ if (!ptr) {
+ RecvErr("ARP Packet too short", strip_info);
+ return;
+ }
+
+ packetlen = 8 + (arphdr->ar_hln + arphdr->ar_pln) * 2;
+
+ if (packetlen > MAX_RECV_MTU) {
+ printk(KERN_INFO
+ "%s: Dropping oversized received ARP packet: %d bytes\n",
+ strip_info->dev->name, packetlen);
+ strip_info->rx_dropped++;
+ return;
+ }
+
+ /*printk(KERN_INFO "%s: Got %d byte ARP %s\n",
+ strip_info->dev->name, packetlen,
+ ntohs(arphdr->ar_op) == ARPOP_REQUEST ? "request" : "reply"); */
+
+ /* Decode remainder of the ARP packet */
+ ptr =
+ UnStuffData(ptr, end, strip_info->rx_buff + 8, packetlen - 8);
+ if (!ptr) {
+ RecvErr("ARP Packet too short", strip_info);
+ return;
+ }
+
+ if (ptr < end) {
+ RecvErr("ARP Packet too long", strip_info);
+ return;
+ }
+
+ header->protocol = htons(ETH_P_ARP);
+
+ deliver_packet(strip_info, header, packetlen);
+}
+
+/*
+ * process_text_message processes a <CR>-terminated block of data received
+ * from the radio that doesn't begin with a '*' character. All normal
+ * Starmode communication messages with the radio begin with a '*',
+ * so any text that does not indicates a serial port error, a radio that
+ * is in Hayes command mode instead of Starmode, or a radio with really
+ * old firmware that doesn't frame its Starmode responses properly.
+ */
+static void process_text_message(struct strip *strip_info)
+{
+ __u8 *msg = strip_info->sx_buff;
+ int len = strip_info->sx_count;
+
+ /* Check for anything that looks like it might be our radio name */
+ /* (This is here for backwards compatibility with old firmware) */
+ if (len == 9 && get_radio_address(strip_info, msg) == 0)
+ return;
+
+ if (text_equal(msg, len, "OK"))
+ return; /* Ignore 'OK' responses from prior commands */
+ if (text_equal(msg, len, "ERROR"))
+ return; /* Ignore 'ERROR' messages */
+ if (has_prefix(msg, len, "ate0q1"))
+ return; /* Ignore character echo back from the radio */
+
+ /* Catch other error messages */
+ /* (This is here for backwards compatibility with old firmware) */
+ if (has_prefix(msg, len, "ERR_")) {
+ RecvErr_Message(strip_info, NULL, &msg[4], len - 4);
+ return;
+ }
+
+ RecvErr("No initial *", strip_info);
+}
+
+/*
+ * process_message processes a <CR>-terminated block of data received
+ * from the radio. If the radio is not in Starmode or has old firmware,
+ * it may be a line of text in response to an AT command. Ideally, with
+ * a current radio that's properly in Starmode, all data received should
+ * be properly framed and checksummed radio message blocks, containing
+ * either a starmode packet, or a other communication from the radio
+ * firmware, like "INF_" Info messages and &COMMAND responses.
+ */
+static void process_message(struct strip *strip_info)
+{
+ STRIP_Header header = { zero_address, zero_address, 0 };
+ __u8 *ptr = strip_info->sx_buff;
+ __u8 *end = strip_info->sx_buff + strip_info->sx_count;
+ __u8 sendername[32], *sptr = sendername;
+ MetricomKey key;
+
+ /*HexDump("Receiving", strip_info, ptr, end); */
+
+ /* Check for start of address marker, and then skip over it */
+ if (*ptr == '*')
+ ptr++;
+ else {
+ process_text_message(strip_info);
+ return;
+ }
+
+ /* Copy out the return address */
+ while (ptr < end && *ptr != '*'
+ && sptr < ARRAY_END(sendername) - 1)
+ *sptr++ = *ptr++;
+ *sptr = 0; /* Null terminate the sender name */
+
+ /* Check for end of address marker, and skip over it */
+ if (ptr >= end || *ptr != '*') {
+ RecvErr("No second *", strip_info);
+ return;
+ }
+ ptr++; /* Skip the second '*' */
+
+ /* If the sender name is "&COMMAND", ignore this 'packet' */
+ /* (This is here for backwards compatibility with old firmware) */
+ if (!strcmp(sendername, "&COMMAND")) {
+ strip_info->firmware_level = NoStructure;
+ strip_info->next_command = CompatibilityCommand;
+ return;
+ }
+
+ if (ptr + 4 > end) {
+ RecvErr("No proto key", strip_info);
+ return;
+ }
+
+ /* Get the protocol key out of the buffer */
+ key.c[0] = *ptr++;
+ key.c[1] = *ptr++;
+ key.c[2] = *ptr++;
+ key.c[3] = *ptr++;
+
+ /* If we're using checksums, verify the checksum at the end of the packet */
+ if (strip_info->firmware_level >= ChecksummedMessages) {
+ end -= 4; /* Chop the last four bytes off the packet (they're the checksum) */
+ if (ptr > end) {
+ RecvErr("Missing Checksum", strip_info);
+ return;
+ }
+ if (!verify_checksum(strip_info)) {
+ RecvErr("Bad Checksum", strip_info);
+ return;
+ }
+ }
+
+ /*printk(KERN_INFO "%s: Got packet from \"%s\".\n", strip_info->dev->name, sendername); */
+
+ /*
+ * Fill in (pseudo) source and destination addresses in the packet.
+ * We assume that the destination address was our address (the radio does not
+ * tell us this). If the radio supplies a source address, then we use it.
+ */
+ header.dst_addr = strip_info->true_dev_addr;
+ string_to_radio_address(&header.src_addr, sendername);
+
+#ifdef EXT_COUNTERS
+ if (key.l == SIP0Key.l) {
+ strip_info->rx_rbytes += (end - ptr);
+ process_IP_packet(strip_info, &header, ptr, end);
+ } else if (key.l == ARP0Key.l) {
+ strip_info->rx_rbytes += (end - ptr);
+ process_ARP_packet(strip_info, &header, ptr, end);
+ } else if (key.l == ATR_Key.l) {
+ strip_info->rx_ebytes += (end - ptr);
+ process_AT_response(strip_info, ptr, end);
+ } else if (key.l == ACK_Key.l) {
+ strip_info->rx_ebytes += (end - ptr);
+ process_ACK(strip_info, ptr, end);
+ } else if (key.l == INF_Key.l) {
+ strip_info->rx_ebytes += (end - ptr);
+ process_Info(strip_info, ptr, end);
+ } else if (key.l == ERR_Key.l) {
+ strip_info->rx_ebytes += (end - ptr);
+ RecvErr_Message(strip_info, sendername, ptr, end - ptr);
+ } else
+ RecvErr("Unrecognized protocol key", strip_info);
+#else
+ if (key.l == SIP0Key.l)
+ process_IP_packet(strip_info, &header, ptr, end);
+ else if (key.l == ARP0Key.l)
+ process_ARP_packet(strip_info, &header, ptr, end);
+ else if (key.l == ATR_Key.l)
+ process_AT_response(strip_info, ptr, end);
+ else if (key.l == ACK_Key.l)
+ process_ACK(strip_info, ptr, end);
+ else if (key.l == INF_Key.l)
+ process_Info(strip_info, ptr, end);
+ else if (key.l == ERR_Key.l)
+ RecvErr_Message(strip_info, sendername, ptr, end - ptr);
+ else
+ RecvErr("Unrecognized protocol key", strip_info);
+#endif
+}
+
+#define TTYERROR(X) ((X) == TTY_BREAK ? "Break" : \
+ (X) == TTY_FRAME ? "Framing Error" : \
+ (X) == TTY_PARITY ? "Parity Error" : \
+ (X) == TTY_OVERRUN ? "Hardware Overrun" : "Unknown Error")
+
+/*
+ * Handle the 'receiver data ready' interrupt.
+ * This function is called by the 'tty_io' module in the kernel when
+ * a block of STRIP data has been received, which can now be decapsulated
+ * and sent on to some IP layer for further processing.
+ */
+
+static void strip_receive_buf(struct tty_struct *tty, const unsigned char *cp,
+ char *fp, int count)
+{
+ struct strip *strip_info = tty->disc_data;
+ const unsigned char *end = cp + count;
+
+ if (!strip_info || strip_info->magic != STRIP_MAGIC
+ || !netif_running(strip_info->dev))
+ return;
+
+ spin_lock_bh(&strip_lock);
+#if 0
+ {
+ struct timeval tv;
+ do_gettimeofday(&tv);
+ printk(KERN_INFO
+ "**** strip_receive_buf: %3d bytes at %02d.%06d\n",
+ count, tv.tv_sec % 100, tv.tv_usec);
+ }
+#endif
+
+#ifdef EXT_COUNTERS
+ strip_info->rx_sbytes += count;
+#endif
+
+ /* Read the characters out of the buffer */
+ while (cp < end) {
+ if (fp && *fp)
+ printk(KERN_INFO "%s: %s on serial port\n",
+ strip_info->dev->name, TTYERROR(*fp));
+ if (fp && *fp++ && !strip_info->discard) { /* If there's a serial error, record it */
+ /* If we have some characters in the buffer, discard them */
+ strip_info->discard = strip_info->sx_count;
+ strip_info->rx_errors++;
+ }
+
+ /* Leading control characters (CR, NL, Tab, etc.) are ignored */
+ if (strip_info->sx_count > 0 || *cp >= ' ') {
+ if (*cp == 0x0D) { /* If end of packet, decide what to do with it */
+ if (strip_info->sx_count > 3000)
+ printk(KERN_INFO
+ "%s: Cut a %d byte packet (%zd bytes remaining)%s\n",
+ strip_info->dev->name,
+ strip_info->sx_count,
+ end - cp - 1,
+ strip_info->
+ discard ? " (discarded)" :
+ "");
+ if (strip_info->sx_count >
+ strip_info->sx_size) {
+ strip_info->rx_over_errors++;
+ printk(KERN_INFO
+ "%s: sx_buff overflow (%d bytes total)\n",
+ strip_info->dev->name,
+ strip_info->sx_count);
+ } else if (strip_info->discard)
+ printk(KERN_INFO
+ "%s: Discarding bad packet (%d/%d)\n",
+ strip_info->dev->name,
+ strip_info->discard,
+ strip_info->sx_count);
+ else
+ process_message(strip_info);
+ strip_info->discard = 0;
+ strip_info->sx_count = 0;
+ } else {
+ /* Make sure we have space in the buffer */
+ if (strip_info->sx_count <
+ strip_info->sx_size)
+ strip_info->sx_buff[strip_info->
+ sx_count] =
+ *cp;
+ strip_info->sx_count++;
+ }
+ }
+ cp++;
+ }
+ spin_unlock_bh(&strip_lock);
+}
+
+
+/************************************************************************/
+/* General control routines */
+
+static int set_mac_address(struct strip *strip_info,
+ MetricomAddress * addr)
+{
+ /*
+ * We're using a manually specified address if the address is set
+ * to anything other than all ones. Setting the address to all ones
+ * disables manual mode and goes back to automatic address determination
+ * (tracking the true address that the radio has).
+ */
+ strip_info->manual_dev_addr =
+ memcmp(addr->c, broadcast_address.c,
+ sizeof(broadcast_address));
+ if (strip_info->manual_dev_addr)
+ *(MetricomAddress *) strip_info->dev->dev_addr = *addr;
+ else
+ *(MetricomAddress *) strip_info->dev->dev_addr =
+ strip_info->true_dev_addr;
+ return 0;
+}
+
+static int strip_set_mac_address(struct net_device *dev, void *addr)
+{
+ struct strip *strip_info = netdev_priv(dev);
+ struct sockaddr *sa = addr;
+ printk(KERN_INFO "%s: strip_set_dev_mac_address called\n", dev->name);
+ set_mac_address(strip_info, (MetricomAddress *) sa->sa_data);
+ return 0;
+}
+
+static struct net_device_stats *strip_get_stats(struct net_device *dev)
+{
+ struct strip *strip_info = netdev_priv(dev);
+ static struct net_device_stats stats;
+
+ memset(&stats, 0, sizeof(struct net_device_stats));
+
+ stats.rx_packets = strip_info->rx_packets;
+ stats.tx_packets = strip_info->tx_packets;
+ stats.rx_dropped = strip_info->rx_dropped;
+ stats.tx_dropped = strip_info->tx_dropped;
+ stats.tx_errors = strip_info->tx_errors;
+ stats.rx_errors = strip_info->rx_errors;
+ stats.rx_over_errors = strip_info->rx_over_errors;
+ return (&stats);
+}
+
+
+/************************************************************************/
+/* Opening and closing */
+
+/*
+ * Here's the order things happen:
+ * When the user runs "slattach -p strip ..."
+ * 1. The TTY module calls strip_open;;
+ * 2. strip_open calls strip_alloc
+ * 3. strip_alloc calls register_netdev
+ * 4. register_netdev calls strip_dev_init
+ * 5. then strip_open finishes setting up the strip_info
+ *
+ * When the user runs "ifconfig st<x> up address netmask ..."
+ * 6. strip_open_low gets called
+ *
+ * When the user runs "ifconfig st<x> down"
+ * 7. strip_close_low gets called
+ *
+ * When the user kills the slattach process
+ * 8. strip_close gets called
+ * 9. strip_close calls dev_close
+ * 10. if the device is still up, then dev_close calls strip_close_low
+ * 11. strip_close calls strip_free
+ */
+
+/* Open the low-level part of the STRIP channel. Easy! */
+
+static int strip_open_low(struct net_device *dev)
+{
+ struct strip *strip_info = netdev_priv(dev);
+
+ if (strip_info->tty == NULL)
+ return (-ENODEV);
+
+ if (!allocate_buffers(strip_info, dev->mtu))
+ return (-ENOMEM);
+
+ strip_info->sx_count = 0;
+ strip_info->tx_left = 0;
+
+ strip_info->discard = 0;
+ strip_info->working = FALSE;
+ strip_info->firmware_level = NoStructure;
+ strip_info->next_command = CompatibilityCommand;
+ strip_info->user_baud = tty_get_baud_rate(strip_info->tty);
+
+ printk(KERN_INFO "%s: Initializing Radio.\n",
+ strip_info->dev->name);
+ ResetRadio(strip_info);
+ strip_info->idle_timer.expires = jiffies + 1 * HZ;
+ add_timer(&strip_info->idle_timer);
+ netif_wake_queue(dev);
+ return (0);
+}
+
+
+/*
+ * Close the low-level part of the STRIP channel. Easy!
+ */
+
+static int strip_close_low(struct net_device *dev)
+{
+ struct strip *strip_info = netdev_priv(dev);
+
+ if (strip_info->tty == NULL)
+ return -EBUSY;
+ clear_bit(TTY_DO_WRITE_WAKEUP, &strip_info->tty->flags);
+ netif_stop_queue(dev);
+
+ /*
+ * Free all STRIP frame buffers.
+ */
+ kfree(strip_info->rx_buff);
+ strip_info->rx_buff = NULL;
+ kfree(strip_info->sx_buff);
+ strip_info->sx_buff = NULL;
+ kfree(strip_info->tx_buff);
+ strip_info->tx_buff = NULL;
+
+ del_timer(&strip_info->idle_timer);
+ return 0;
+}
+
+static const struct header_ops strip_header_ops = {
+ .create = strip_header,
+ .rebuild = strip_rebuild_header,
+};
+
+
+static const struct net_device_ops strip_netdev_ops = {
+ .ndo_open = strip_open_low,
+ .ndo_stop = strip_close_low,
+ .ndo_start_xmit = strip_xmit,
+ .ndo_set_mac_address = strip_set_mac_address,
+ .ndo_get_stats = strip_get_stats,
+ .ndo_change_mtu = strip_change_mtu,
+};
+
+/*
+ * This routine is called by DDI when the
+ * (dynamically assigned) device is registered
+ */
+
+static void strip_dev_setup(struct net_device *dev)
+{
+ /*
+ * Finish setting up the DEVICE info.
+ */
+
+ dev->trans_start = 0;
+ dev->tx_queue_len = 30; /* Drop after 30 frames queued */
+
+ dev->flags = 0;
+ dev->mtu = DEFAULT_STRIP_MTU;
+ dev->type = ARPHRD_METRICOM; /* dtang */
+ dev->hard_header_len = sizeof(STRIP_Header);
+ /*
+ * netdev_priv(dev) Already holds a pointer to our struct strip
+ */
+
+ *(MetricomAddress *)dev->broadcast = broadcast_address;
+ dev->dev_addr[0] = 0;
+ dev->addr_len = sizeof(MetricomAddress);
+
+ dev->header_ops = &strip_header_ops,
+ dev->netdev_ops = &strip_netdev_ops;
+}
+
+/*
+ * Free a STRIP channel.
+ */
+
+static void strip_free(struct strip *strip_info)
+{
+ spin_lock_bh(&strip_lock);
+ list_del_rcu(&strip_info->list);
+ spin_unlock_bh(&strip_lock);
+
+ strip_info->magic = 0;
+
+ free_netdev(strip_info->dev);
+}
+
+
+/*
+ * Allocate a new free STRIP channel
+ */
+static struct strip *strip_alloc(void)
+{
+ struct list_head *n;
+ struct net_device *dev;
+ struct strip *strip_info;
+
+ dev = alloc_netdev(sizeof(struct strip), "st%d",
+ strip_dev_setup);
+
+ if (!dev)
+ return NULL; /* If no more memory, return */
+
+
+ strip_info = netdev_priv(dev);
+ strip_info->dev = dev;
+
+ strip_info->magic = STRIP_MAGIC;
+ strip_info->tty = NULL;
+
+ strip_info->gratuitous_arp = jiffies + LongTime;
+ strip_info->arp_interval = 0;
+ init_timer(&strip_info->idle_timer);
+ strip_info->idle_timer.data = (long) dev;
+ strip_info->idle_timer.function = strip_IdleTask;
+
+
+ spin_lock_bh(&strip_lock);
+ rescan:
+ /*
+ * Search the list to find where to put our new entry
+ * (and in the process decide what channel number it is
+ * going to be)
+ */
+ list_for_each(n, &strip_list) {
+ struct strip *s = hlist_entry(n, struct strip, list);
+
+ if (s->dev->base_addr == dev->base_addr) {
+ ++dev->base_addr;
+ goto rescan;
+ }
+ }
+
+ sprintf(dev->name, "st%ld", dev->base_addr);
+
+ list_add_tail_rcu(&strip_info->list, &strip_list);
+ spin_unlock_bh(&strip_lock);
+
+ return strip_info;
+}
+
+/*
+ * Open the high-level part of the STRIP channel.
+ * This function is called by the TTY module when the
+ * STRIP line discipline is called for. Because we are
+ * sure the tty line exists, we only have to link it to
+ * a free STRIP channel...
+ */
+
+static int strip_open(struct tty_struct *tty)
+{
+ struct strip *strip_info = tty->disc_data;
+
+ /*
+ * First make sure we're not already connected.
+ */
+
+ if (strip_info && strip_info->magic == STRIP_MAGIC)
+ return -EEXIST;
+
+ /*
+ * We need a write method.
+ */
+
+ if (tty->ops->write == NULL || tty->ops->set_termios == NULL)
+ return -EOPNOTSUPP;
+
+ /*
+ * OK. Find a free STRIP channel to use.
+ */
+ if ((strip_info = strip_alloc()) == NULL)
+ return -ENFILE;
+
+ /*
+ * Register our newly created device so it can be ifconfig'd
+ * strip_dev_init() will be called as a side-effect
+ */
+
+ if (register_netdev(strip_info->dev) != 0) {
+ printk(KERN_ERR "strip: register_netdev() failed.\n");
+ strip_free(strip_info);
+ return -ENFILE;
+ }
+
+ strip_info->tty = tty;
+ tty->disc_data = strip_info;
+ tty->receive_room = 65536;
+
+ tty_driver_flush_buffer(tty);
+
+ /*
+ * Restore default settings
+ */
+
+ strip_info->dev->type = ARPHRD_METRICOM; /* dtang */
+
+ /*
+ * Set tty options
+ */
+
+ tty->termios->c_iflag |= IGNBRK | IGNPAR; /* Ignore breaks and parity errors. */
+ tty->termios->c_cflag |= CLOCAL; /* Ignore modem control signals. */
+ tty->termios->c_cflag &= ~HUPCL; /* Don't close on hup */
+
+ printk(KERN_INFO "STRIP: device \"%s\" activated\n",
+ strip_info->dev->name);
+
+ /*
+ * Done. We have linked the TTY line to a channel.
+ */
+ return (strip_info->dev->base_addr);
+}
+
+/*
+ * Close down a STRIP channel.
+ * This means flushing out any pending queues, and then restoring the
+ * TTY line discipline to what it was before it got hooked to STRIP
+ * (which usually is TTY again).
+ */
+
+static void strip_close(struct tty_struct *tty)
+{
+ struct strip *strip_info = tty->disc_data;
+
+ /*
+ * First make sure we're connected.
+ */
+
+ if (!strip_info || strip_info->magic != STRIP_MAGIC)
+ return;
+
+ unregister_netdev(strip_info->dev);
+
+ tty->disc_data = NULL;
+ strip_info->tty = NULL;
+ printk(KERN_INFO "STRIP: device \"%s\" closed down\n",
+ strip_info->dev->name);
+ strip_free(strip_info);
+ tty->disc_data = NULL;
+}
+
+
+/************************************************************************/
+/* Perform I/O control calls on an active STRIP channel. */
+
+static int strip_ioctl(struct tty_struct *tty, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ struct strip *strip_info = tty->disc_data;
+
+ /*
+ * First make sure we're connected.
+ */
+
+ if (!strip_info || strip_info->magic != STRIP_MAGIC)
+ return -EINVAL;
+
+ switch (cmd) {
+ case SIOCGIFNAME:
+ if(copy_to_user((void __user *) arg, strip_info->dev->name, strlen(strip_info->dev->name) + 1))
+ return -EFAULT;
+ break;
+ case SIOCSIFHWADDR:
+ {
+ MetricomAddress addr;
+ //printk(KERN_INFO "%s: SIOCSIFHWADDR\n", strip_info->dev->name);
+ if(copy_from_user(&addr, (void __user *) arg, sizeof(MetricomAddress)))
+ return -EFAULT;
+ return set_mac_address(strip_info, &addr);
+ }
+ default:
+ return tty_mode_ioctl(tty, file, cmd, arg);
+ break;
+ }
+ return 0;
+}
+
+
+/************************************************************************/
+/* Initialization */
+
+static struct tty_ldisc_ops strip_ldisc = {
+ .magic = TTY_LDISC_MAGIC,
+ .name = "strip",
+ .owner = THIS_MODULE,
+ .open = strip_open,
+ .close = strip_close,
+ .ioctl = strip_ioctl,
+ .receive_buf = strip_receive_buf,
+ .write_wakeup = strip_write_some_more,
+};
+
+/*
+ * Initialize the STRIP driver.
+ * This routine is called at boot time, to bootstrap the multi-channel
+ * STRIP driver
+ */
+
+static char signon[] __initdata =
+ KERN_INFO "STRIP: Version %s (unlimited channels)\n";
+
+static int __init strip_init_driver(void)
+{
+ int status;
+
+ printk(signon, StripVersion);
+
+
+ /*
+ * Fill in our line protocol discipline, and register it
+ */
+ if ((status = tty_register_ldisc(N_STRIP, &strip_ldisc)))
+ printk(KERN_ERR "STRIP: can't register line discipline (err = %d)\n",
+ status);
+
+ /*
+ * Register the status file with /proc
+ */
+ proc_net_fops_create(&init_net, "strip", S_IFREG | S_IRUGO, &strip_seq_fops);
+
+ return status;
+}
+
+module_init(strip_init_driver);
+
+static const char signoff[] __exitdata =
+ KERN_INFO "STRIP: Module Unloaded\n";
+
+static void __exit strip_exit_driver(void)
+{
+ int i;
+ struct list_head *p,*n;
+
+ /* module ref count rules assure that all entries are unregistered */
+ list_for_each_safe(p, n, &strip_list) {
+ struct strip *s = list_entry(p, struct strip, list);
+ strip_free(s);
+ }
+
+ /* Unregister with the /proc/net file here. */
+ proc_net_remove(&init_net, "strip");
+
+ if ((i = tty_unregister_ldisc(N_STRIP)))
+ printk(KERN_ERR "STRIP: can't unregister line discipline (err = %d)\n", i);
+
+ printk(signoff);
+}
+
+module_exit(strip_exit_driver);
+
+MODULE_AUTHOR("Stuart Cheshire <cheshire@cs.stanford.edu>");
+MODULE_DESCRIPTION("Starmode Radio IP (STRIP) Device Driver");
+MODULE_LICENSE("Dual BSD/GPL");
+
+MODULE_SUPPORTED_DEVICE("Starmode Radio IP (STRIP) modem");
--
1.6.2.5
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 2/4] arlan: move driver to staging
2009-10-20 5:17 [PATCH 1/4] strip: move driver to staging John W. Linville
@ 2009-10-20 5:17 ` John W. Linville
[not found] ` <1256015830-12700-3-git-send-email-linville@tuxdriver.com>
2009-10-20 16:06 ` [PATCH 1/4] strip: " Randy Dunlap
2009-10-23 16:10 ` Pavel Machek
2 siblings, 1 reply; 33+ messages in thread
From: John W. Linville @ 2009-10-20 5:17 UTC (permalink / raw)
To: linux-kernel; +Cc: gregkh, John W. Linville
Move the arlan driver to drivers/staging. This is another pre-802.11
driver that has seen virtually no non-API-fixup activity in years, and
for which no active hardware is likely to still exist. This driver
represents unnecessary ongoing maintenance for no clear benefit.
This patch brought to you by the "hacking" session at the 2009 Kernel
Summit in Tokyo, Japan...
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/Kconfig | 16 -
drivers/net/wireless/Makefile | 4 -
drivers/net/wireless/arlan-main.c | 1887 ------------------------------------
drivers/net/wireless/arlan-proc.c | 1253 ------------------------
drivers/net/wireless/arlan.h | 539 ----------
drivers/staging/Kconfig | 2 +
drivers/staging/Makefile | 1 +
drivers/staging/arlan/Kconfig | 15 +
drivers/staging/arlan/Makefile | 3 +
drivers/staging/arlan/arlan-main.c | 1887 ++++++++++++++++++++++++++++++++++++
drivers/staging/arlan/arlan-proc.c | 1253 ++++++++++++++++++++++++
drivers/staging/arlan/arlan.h | 539 ++++++++++
12 files changed, 3700 insertions(+), 3699 deletions(-)
delete mode 100644 drivers/net/wireless/arlan-main.c
delete mode 100644 drivers/net/wireless/arlan-proc.c
delete mode 100644 drivers/net/wireless/arlan.h
create mode 100644 drivers/staging/arlan/Kconfig
create mode 100644 drivers/staging/arlan/Makefile
create mode 100644 drivers/staging/arlan/arlan-main.c
create mode 100644 drivers/staging/arlan/arlan-proc.c
create mode 100644 drivers/staging/arlan/arlan.h
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index 019db8e..f38b979 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -24,22 +24,6 @@ menuconfig WLAN_PRE80211
This option does not affect the kernel build, it only
lets you choose drivers.
-config ARLAN
- tristate "Aironet Arlan 655 & IC2200 DS support"
- depends on ISA && !64BIT && WLAN_PRE80211
- select WIRELESS_EXT
- ---help---
- Aironet makes Arlan, a class of wireless LAN adapters. These use the
- www.Telxon.com chip, which is also used on several similar cards.
- This driver is tested on the 655 and IC2200 series cards. Look at
- <http://www.ylenurme.ee/~elmer/655/> for the latest information.
-
- The driver is built as two modules, arlan and arlan-proc. The latter
- is the /proc interface and is not needed most of time.
-
- On some computers the card ends up in non-valid state after some
- time. Use a ping-reset script to clear it.
-
config WAVELAN
tristate "AT&T/Lucent old WaveLAN & DEC RoamAbout DS ISA support"
depends on ISA && WLAN_PRE80211
diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
index 527c272..b56c70f 100644
--- a/drivers/net/wireless/Makefile
+++ b/drivers/net/wireless/Makefile
@@ -5,10 +5,6 @@
obj-$(CONFIG_IPW2100) += ipw2x00/
obj-$(CONFIG_IPW2200) += ipw2x00/
-obj-$(CONFIG_ARLAN) += arlan.o
-
-arlan-objs := arlan-main.o arlan-proc.o
-
# Obsolete cards
obj-$(CONFIG_WAVELAN) += wavelan.o
obj-$(CONFIG_PCMCIA_NETWAVE) += netwave_cs.o
diff --git a/drivers/net/wireless/arlan-main.c b/drivers/net/wireless/arlan-main.c
deleted file mode 100644
index 921a082..0000000
--- a/drivers/net/wireless/arlan-main.c
+++ /dev/null
@@ -1,1887 +0,0 @@
-/*
- * Copyright (C) 1997 Cullen Jennings
- * Copyright (C) 1998 Elmer Joandiu, elmer@ylenurme.ee
- * GNU General Public License applies
- * This module provides support for the Arlan 655 card made by Aironet
- */
-
-#include "arlan.h"
-
-#if BITS_PER_LONG != 32
-# error FIXME: this driver requires a 32-bit platform
-#endif
-
-static const char *arlan_version = "C.Jennigs 97 & Elmer.Joandi@ut.ee Oct'98, http://www.ylenurme.ee/~elmer/655/";
-
-struct net_device *arlan_device[MAX_ARLANS];
-
-static int SID = SIDUNKNOWN;
-static int radioNodeId = radioNodeIdUNKNOWN;
-static char encryptionKey[12] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'};
-int arlan_debug = debugUNKNOWN;
-static int spreadingCode = spreadingCodeUNKNOWN;
-static int channelNumber = channelNumberUNKNOWN;
-static int channelSet = channelSetUNKNOWN;
-static int systemId = systemIdUNKNOWN;
-static int registrationMode = registrationModeUNKNOWN;
-static int keyStart;
-static int tx_delay_ms;
-static int retries = 5;
-static int tx_queue_len = 1;
-static int arlan_EEPROM_bad;
-
-#ifdef ARLAN_DEBUGGING
-
-static int testMemory = testMemoryUNKNOWN;
-static int irq = irqUNKNOWN;
-static int txScrambled = 1;
-static int mdebug;
-
-module_param(irq, int, 0);
-module_param(mdebug, int, 0);
-module_param(testMemory, int, 0);
-module_param(txScrambled, int, 0);
-MODULE_PARM_DESC(irq, "(unused)");
-MODULE_PARM_DESC(testMemory, "(unused)");
-MODULE_PARM_DESC(mdebug, "Arlan multicast debugging (0-1)");
-#endif
-
-module_param_named(debug, arlan_debug, int, 0);
-module_param(spreadingCode, int, 0);
-module_param(channelNumber, int, 0);
-module_param(channelSet, int, 0);
-module_param(systemId, int, 0);
-module_param(registrationMode, int, 0);
-module_param(radioNodeId, int, 0);
-module_param(SID, int, 0);
-module_param(keyStart, int, 0);
-module_param(tx_delay_ms, int, 0);
-module_param(retries, int, 0);
-module_param(tx_queue_len, int, 0);
-module_param_named(EEPROM_bad, arlan_EEPROM_bad, int, 0);
-MODULE_PARM_DESC(debug, "Arlan debug enable (0-1)");
-MODULE_PARM_DESC(retries, "Arlan maximum packet retransmisions");
-#ifdef ARLAN_ENTRY_EXIT_DEBUGGING
-static int arlan_entry_debug;
-static int arlan_exit_debug;
-static int arlan_entry_and_exit_debug;
-module_param_named(entry_debug, arlan_entry_debug, int, 0);
-module_param_named(exit_debug, arlan_exit_debug, int, 0);
-module_param_named(entry_and_exit_debug, arlan_entry_and_exit_debug, int, 0);
-MODULE_PARM_DESC(entry_debug, "Arlan driver function entry debugging");
-MODULE_PARM_DESC(exit_debug, "Arlan driver function exit debugging");
-MODULE_PARM_DESC(entry_and_exit_debug, "Arlan driver function entry and exit debugging");
-#endif
-
-struct arlan_conf_stru arlan_conf[MAX_ARLANS];
-static int arlans_found;
-
-static int arlan_open(struct net_device *dev);
-static netdev_tx_t arlan_tx(struct sk_buff *skb, struct net_device *dev);
-static irqreturn_t arlan_interrupt(int irq, void *dev_id);
-static int arlan_close(struct net_device *dev);
-static struct net_device_stats *
- arlan_statistics (struct net_device *dev);
-static void arlan_set_multicast (struct net_device *dev);
-static int arlan_hw_tx (struct net_device* dev, char *buf, int length );
-static int arlan_hw_config (struct net_device * dev);
-static void arlan_tx_done_interrupt (struct net_device * dev, int status);
-static void arlan_rx_interrupt (struct net_device * dev, u_char rxStatus, u_short, u_short);
-static void arlan_process_interrupt (struct net_device * dev);
-static void arlan_tx_timeout (struct net_device *dev);
-
-static inline long us2ticks(int us)
-{
- return us * (1000000 / HZ);
-}
-
-
-#ifdef ARLAN_ENTRY_EXIT_DEBUGGING
-#define ARLAN_DEBUG_ENTRY(name) \
- {\
- struct timeval timev;\
- do_gettimeofday(&timev);\
- if (arlan_entry_debug || arlan_entry_and_exit_debug)\
- printk("--->>>" name " %ld " "\n",((long int) timev.tv_sec * 1000000 + timev.tv_usec));\
- }
-#define ARLAN_DEBUG_EXIT(name) \
- {\
- struct timeval timev;\
- do_gettimeofday(&timev);\
- if (arlan_exit_debug || arlan_entry_and_exit_debug)\
- printk("<<<---" name " %ld " "\n",((long int) timev.tv_sec * 1000000 + timev.tv_usec) );\
- }
-#else
-#define ARLAN_DEBUG_ENTRY(name)
-#define ARLAN_DEBUG_EXIT(name)
-#endif
-
-
-#define arlan_interrupt_ack(dev)\
- clearClearInterrupt(dev);\
- setClearInterrupt(dev);
-
-static inline int arlan_drop_tx(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
-
- dev->stats.tx_errors++;
- if (priv->Conf->tx_delay_ms)
- {
- priv->tx_done_delayed = jiffies + priv->Conf->tx_delay_ms * HZ / 1000 + 1;
- }
- else
- {
- priv->waiting_command_mask &= ~ARLAN_COMMAND_TX;
- TXHEAD(dev).offset = 0;
- TXTAIL(dev).offset = 0;
- priv->txLast = 0;
- priv->bad = 0;
- if (!priv->under_reset && !priv->under_config)
- netif_wake_queue (dev);
- }
- return 1;
-}
-
-
-int arlan_command(struct net_device *dev, int command_p)
-{
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
- struct arlan_conf_stru *conf = priv->Conf;
- int udelayed = 0;
- int i = 0;
- unsigned long flags;
-
- ARLAN_DEBUG_ENTRY("arlan_command");
-
- if (priv->card_polling_interval)
- priv->card_polling_interval = 1;
-
- if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
- printk(KERN_DEBUG "arlan_command, %lx commandByte %x waiting %lx incoming %x \n",
- jiffies, READSHMB(arlan->commandByte),
- priv->waiting_command_mask, command_p);
-
- priv->waiting_command_mask |= command_p;
-
- if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
- if (time_after(jiffies, priv->lastReset + 5 * HZ))
- priv->waiting_command_mask &= ~ARLAN_COMMAND_RESET;
-
- if (priv->waiting_command_mask & ARLAN_COMMAND_INT_ACK)
- {
- arlan_interrupt_ack(dev);
- priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_ACK;
- }
- if (priv->waiting_command_mask & ARLAN_COMMAND_INT_ENABLE)
- {
- setInterruptEnable(dev);
- priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_ENABLE;
- }
-
- /* Card access serializing lock */
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Check cards status and waiting */
-
- if (priv->waiting_command_mask & (ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW))
- {
- while (priv->waiting_command_mask & (ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW))
- {
- if (READSHMB(arlan->resetFlag) ||
- READSHMB(arlan->commandByte)) /* ||
- (readControlRegister(dev) & ARLAN_ACCESS))
- */
- udelay(40);
- else
- priv->waiting_command_mask &= ~(ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW);
-
- udelayed++;
-
- if (priv->waiting_command_mask & ARLAN_COMMAND_LONG_WAIT_NOW)
- {
- if (udelayed * 40 > 1000000)
- {
- printk(KERN_ERR "%s long wait too long \n", dev->name);
- priv->waiting_command_mask |= ARLAN_COMMAND_RESET;
- break;
- }
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_WAIT_NOW)
- {
- if (udelayed * 40 > 1000)
- {
- printk(KERN_ERR "%s short wait too long \n", dev->name);
- goto bad_end;
- }
- }
- }
- }
- else
- {
- i = 0;
- while ((READSHMB(arlan->resetFlag) ||
- READSHMB(arlan->commandByte)) &&
- conf->pre_Command_Wait > (i++) * 10)
- udelay(10);
-
-
- if ((READSHMB(arlan->resetFlag) ||
- READSHMB(arlan->commandByte)) &&
- !(priv->waiting_command_mask & ARLAN_COMMAND_RESET))
- {
- goto card_busy_end;
- }
- }
- if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
- priv->under_reset = 1;
- if (priv->waiting_command_mask & ARLAN_COMMAND_CONF)
- priv->under_config = 1;
-
- /* Issuing command */
- arlan_lock_card_access(dev);
- if (priv->waiting_command_mask & ARLAN_COMMAND_POWERUP)
- {
- // if (readControlRegister(dev) & (ARLAN_ACCESS && ARLAN_POWER))
- setPowerOn(dev);
- arlan_interrupt_lancpu(dev);
- priv->waiting_command_mask &= ~ARLAN_COMMAND_POWERUP;
- priv->waiting_command_mask |= ARLAN_COMMAND_RESET;
- priv->card_polling_interval = HZ / 10;
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_ACTIVATE)
- {
- WRITESHMB(arlan->commandByte, ARLAN_COM_ACTIVATE);
- arlan_interrupt_lancpu(dev);
- priv->waiting_command_mask &= ~ARLAN_COMMAND_ACTIVATE;
- priv->card_polling_interval = HZ / 10;
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_RX_ABORT)
- {
- if (priv->rx_command_given)
- {
- WRITESHMB(arlan->commandByte, ARLAN_COM_RX_ABORT);
- arlan_interrupt_lancpu(dev);
- priv->rx_command_given = 0;
- }
- priv->waiting_command_mask &= ~ARLAN_COMMAND_RX_ABORT;
- priv->card_polling_interval = 1;
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_TX_ABORT)
- {
- if (priv->tx_command_given)
- {
- WRITESHMB(arlan->commandByte, ARLAN_COM_TX_ABORT);
- arlan_interrupt_lancpu(dev);
- priv->tx_command_given = 0;
- }
- priv->waiting_command_mask &= ~ARLAN_COMMAND_TX_ABORT;
- priv->card_polling_interval = 1;
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
- {
- priv->under_reset=1;
- netif_stop_queue (dev);
-
- arlan_drop_tx(dev);
- if (priv->tx_command_given || priv->rx_command_given)
- {
- printk(KERN_ERR "%s: Reset under tx or rx command \n", dev->name);
- }
- netif_stop_queue (dev);
- if (arlan_debug & ARLAN_DEBUG_RESET)
- printk(KERN_ERR "%s: Doing chip reset\n", dev->name);
- priv->lastReset = jiffies;
- WRITESHM(arlan->commandByte, 0, u_char);
- /* hold card in reset state */
- setHardwareReset(dev);
- /* set reset flag and then release reset */
- WRITESHM(arlan->resetFlag, 0xff, u_char);
- clearChannelAttention(dev);
- clearHardwareReset(dev);
- priv->card_polling_interval = HZ / 4;
- priv->waiting_command_mask &= ~ARLAN_COMMAND_RESET;
- priv->waiting_command_mask |= ARLAN_COMMAND_INT_RACK;
-// priv->waiting_command_mask |= ARLAN_COMMAND_INT_RENABLE;
-// priv->waiting_command_mask |= ARLAN_COMMAND_RX;
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_INT_RACK)
- {
- clearHardwareReset(dev);
- clearClearInterrupt(dev);
- setClearInterrupt(dev);
- setInterruptEnable(dev);
- priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_RACK;
- priv->waiting_command_mask |= ARLAN_COMMAND_CONF;
- priv->under_config = 1;
- priv->under_reset = 0;
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_INT_RENABLE)
- {
- setInterruptEnable(dev);
- priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_RENABLE;
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_CONF)
- {
- if (priv->tx_command_given || priv->rx_command_given)
- {
- printk(KERN_ERR "%s: Reset under tx or rx command \n", dev->name);
- }
- arlan_drop_tx(dev);
- setInterruptEnable(dev);
- arlan_hw_config(dev);
- arlan_interrupt_lancpu(dev);
- priv->waiting_command_mask &= ~ARLAN_COMMAND_CONF;
- priv->card_polling_interval = HZ / 10;
-// priv->waiting_command_mask |= ARLAN_COMMAND_INT_RACK;
-// priv->waiting_command_mask |= ARLAN_COMMAND_INT_ENABLE;
- priv->waiting_command_mask |= ARLAN_COMMAND_CONF_WAIT;
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_CONF_WAIT)
- {
- if (READSHMB(arlan->configuredStatusFlag) != 0 &&
- READSHMB(arlan->diagnosticInfo) == 0xff)
- {
- priv->waiting_command_mask &= ~ARLAN_COMMAND_CONF_WAIT;
- priv->waiting_command_mask |= ARLAN_COMMAND_RX;
- priv->waiting_command_mask |= ARLAN_COMMAND_TBUSY_CLEAR;
- priv->card_polling_interval = HZ / 10;
- priv->tx_command_given = 0;
- priv->under_config = 0;
- }
- else
- {
- priv->card_polling_interval = 1;
- if (arlan_debug & ARLAN_DEBUG_TIMING)
- printk(KERN_ERR "configure delayed \n");
- }
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_RX)
- {
- if (!registrationBad(dev))
- {
- setInterruptEnable(dev);
- memset_io(arlan->commandParameter, 0, 0xf);
- WRITESHMB(arlan->commandByte, ARLAN_COM_INT | ARLAN_COM_RX_ENABLE);
- WRITESHMB(arlan->commandParameter[0], conf->rxParameter);
- arlan_interrupt_lancpu(dev);
- priv->rx_command_given = 0; // mnjah, bad
- priv->waiting_command_mask &= ~ARLAN_COMMAND_RX;
- priv->card_polling_interval = 1;
- }
- else
- priv->card_polling_interval = 2;
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_TBUSY_CLEAR)
- {
- if ( !registrationBad(dev) &&
- (netif_queue_stopped(dev) || !netif_running(dev)) )
- {
- priv->waiting_command_mask &= ~ARLAN_COMMAND_TBUSY_CLEAR;
- netif_wake_queue (dev);
- }
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_TX)
- {
- if (!test_and_set_bit(0, (void *) &priv->tx_command_given))
- {
- if (time_after(jiffies,
- priv->tx_last_sent + us2ticks(conf->rx_tweak1))
- || time_before(jiffies,
- priv->last_rx_int_ack_time + us2ticks(conf->rx_tweak2)))
- {
- setInterruptEnable(dev);
- memset_io(arlan->commandParameter, 0, 0xf);
- WRITESHMB(arlan->commandByte, ARLAN_COM_TX_ENABLE | ARLAN_COM_INT);
- memcpy_toio(arlan->commandParameter, &TXLAST(dev), 14);
-// for ( i=1 ; i < 15 ; i++) printk("%02x:",READSHMB(arlan->commandParameter[i]));
- priv->tx_last_sent = jiffies;
- arlan_interrupt_lancpu(dev);
- priv->tx_command_given = 1;
- priv->waiting_command_mask &= ~ARLAN_COMMAND_TX;
- priv->card_polling_interval = 1;
- }
- else
- {
- priv->tx_command_given = 0;
- priv->card_polling_interval = 1;
- }
- }
- else if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
- printk(KERN_ERR "tx command when tx chain locked \n");
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_NOOPINT)
- {
- {
- WRITESHMB(arlan->commandByte, ARLAN_COM_NOP | ARLAN_COM_INT);
- }
- arlan_interrupt_lancpu(dev);
- priv->waiting_command_mask &= ~ARLAN_COMMAND_NOOPINT;
- priv->card_polling_interval = HZ / 3;
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_NOOP)
- {
- WRITESHMB(arlan->commandByte, ARLAN_COM_NOP);
- arlan_interrupt_lancpu(dev);
- priv->waiting_command_mask &= ~ARLAN_COMMAND_NOOP;
- priv->card_polling_interval = HZ / 3;
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_SLOW_POLL)
- {
- WRITESHMB(arlan->commandByte, ARLAN_COM_GOTO_SLOW_POLL);
- arlan_interrupt_lancpu(dev);
- priv->waiting_command_mask &= ~ARLAN_COMMAND_SLOW_POLL;
- priv->card_polling_interval = HZ / 3;
- }
- else if (priv->waiting_command_mask & ARLAN_COMMAND_POWERDOWN)
- {
- setPowerOff(dev);
- if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
- printk(KERN_WARNING "%s: Arlan Going Standby\n", dev->name);
- priv->waiting_command_mask &= ~ARLAN_COMMAND_POWERDOWN;
- priv->card_polling_interval = 3 * HZ;
- }
- arlan_unlock_card_access(dev);
- for (i = 0; READSHMB(arlan->commandByte) && i < 20; i++)
- udelay(10);
- if (READSHMB(arlan->commandByte))
- if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
- printk(KERN_ERR "card busy leaving command %lx\n", priv->waiting_command_mask);
-
- spin_unlock_irqrestore(&priv->lock, flags);
- ARLAN_DEBUG_EXIT("arlan_command");
- priv->last_command_buff_free_time = jiffies;
- return 0;
-
-card_busy_end:
- if (time_after(jiffies, priv->last_command_buff_free_time + HZ))
- priv->waiting_command_mask |= ARLAN_COMMAND_CLEAN_AND_RESET;
-
- if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
- printk(KERN_ERR "%s arlan_command card busy end \n", dev->name);
- spin_unlock_irqrestore(&priv->lock, flags);
- ARLAN_DEBUG_EXIT("arlan_command");
- return 1;
-
-bad_end:
- printk(KERN_ERR "%s arlan_command bad end \n", dev->name);
-
- spin_unlock_irqrestore(&priv->lock, flags);
- ARLAN_DEBUG_EXIT("arlan_command");
-
- return -1;
-}
-
-static inline void arlan_command_process(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
-
- int times = 0;
- while (priv->waiting_command_mask && times < 8)
- {
- if (priv->waiting_command_mask)
- {
- if (arlan_command(dev, 0))
- break;
- times++;
- }
- /* if long command, we won't repeat trying */ ;
- if (priv->card_polling_interval > 1)
- break;
- times++;
- }
-}
-
-
-static inline void arlan_retransmit_now(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
-
-
- ARLAN_DEBUG_ENTRY("arlan_retransmit_now");
- if (TXLAST(dev).offset == 0)
- {
- if (TXHEAD(dev).offset)
- {
- priv->txLast = 0;
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_DEBUG "TX buff switch to head \n");
-
- }
- else if (TXTAIL(dev).offset)
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_DEBUG "TX buff switch to tail \n");
- priv->txLast = 1;
- }
- else
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_ERR "ReTransmit buff empty");
- netif_wake_queue (dev);
- return;
-
- }
- arlan_command(dev, ARLAN_COMMAND_TX);
-
- priv->Conf->driverRetransmissions++;
- priv->retransmissions++;
-
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk("Retransmit %d bytes \n", TXLAST(dev).length);
-
- ARLAN_DEBUG_EXIT("arlan_retransmit_now");
-}
-
-
-
-static void arlan_registration_timer(unsigned long data)
-{
- struct net_device *dev = (struct net_device *) data;
- struct arlan_private *priv = netdev_priv(dev);
- int bh_mark_needed = 0;
- int next_tick = 1;
- long lostTime = ((long)jiffies - (long)priv->registrationLastSeen)
- * (1000/HZ);
-
- if (registrationBad(dev))
- {
- priv->registrationLostCount++;
- if (lostTime > 7000 && lostTime < 7200)
- {
- printk(KERN_NOTICE "%s registration Lost \n", dev->name);
- }
- if (lostTime / priv->reRegisterExp > 2000)
- arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_CONF);
- if (lostTime / (priv->reRegisterExp) > 3500)
- arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
- if (priv->reRegisterExp < 400)
- priv->reRegisterExp += 2;
- if (lostTime > 7200)
- {
- next_tick = HZ;
- arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
- }
- }
- else
- {
- if (priv->Conf->registrationMode && lostTime > 10000 &&
- priv->registrationLostCount)
- {
- printk(KERN_NOTICE "%s registration is back after %ld milliseconds\n",
- dev->name, lostTime);
- }
- priv->registrationLastSeen = jiffies;
- priv->registrationLostCount = 0;
- priv->reRegisterExp = 1;
- if (!netif_running(dev) )
- netif_wake_queue(dev);
- if (time_after(priv->tx_last_sent,priv->tx_last_cleared) &&
- time_after(jiffies, priv->tx_last_sent * 5*HZ) ){
- arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
- priv->tx_last_cleared = jiffies;
- }
- }
-
-
- if (!registrationBad(dev) && priv->ReTransmitRequested)
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk(KERN_ERR "Retransmit from timer \n");
- priv->ReTransmitRequested = 0;
- arlan_retransmit_now(dev);
- }
- if (!registrationBad(dev) &&
- time_after(jiffies, priv->tx_done_delayed) &&
- priv->tx_done_delayed != 0)
- {
- TXLAST(dev).offset = 0;
- if (priv->txLast)
- priv->txLast = 0;
- else if (TXTAIL(dev).offset)
- priv->txLast = 1;
- if (TXLAST(dev).offset)
- {
- arlan_retransmit_now(dev);
- dev->trans_start = jiffies;
- }
- if (!(TXHEAD(dev).offset && TXTAIL(dev).offset))
- {
- netif_wake_queue (dev);
- }
- priv->tx_done_delayed = 0;
- bh_mark_needed = 1;
- }
- if (bh_mark_needed)
- {
- netif_wake_queue (dev);
- }
- arlan_process_interrupt(dev);
-
- if (next_tick < priv->card_polling_interval)
- next_tick = priv->card_polling_interval;
-
- priv->timer.expires = jiffies + next_tick;
-
- add_timer(&priv->timer);
-}
-
-
-#ifdef ARLAN_DEBUGGING
-
-static void arlan_print_registers(struct net_device *dev, int line)
-{
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem *arlan = priv->card;
-
- u_char hostcpuLock, lancpuLock, controlRegister, cntrlRegImage,
- txStatus, rxStatus, interruptInProgress, commandByte;
-
-
- ARLAN_DEBUG_ENTRY("arlan_print_registers");
- READSHM(interruptInProgress, arlan->interruptInProgress, u_char);
- READSHM(hostcpuLock, arlan->hostcpuLock, u_char);
- READSHM(lancpuLock, arlan->lancpuLock, u_char);
- READSHM(controlRegister, arlan->controlRegister, u_char);
- READSHM(cntrlRegImage, arlan->cntrlRegImage, u_char);
- READSHM(txStatus, arlan->txStatus, u_char);
- READSHM(rxStatus, arlan->rxStatus, u_char);
- READSHM(commandByte, arlan->commandByte, u_char);
-
- printk(KERN_WARNING "line %04d IP %02x HL %02x LL %02x CB %02x CR %02x CRI %02x TX %02x RX %02x\n",
- line, interruptInProgress, hostcpuLock, lancpuLock, commandByte,
- controlRegister, cntrlRegImage, txStatus, rxStatus);
-
- ARLAN_DEBUG_EXIT("arlan_print_registers");
-}
-#endif
-
-
-static int arlan_hw_tx(struct net_device *dev, char *buf, int length)
-{
- int i;
-
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
- struct arlan_conf_stru *conf = priv->Conf;
-
- int tailStarts = 0x800;
- int headEnds = 0x0;
-
-
- ARLAN_DEBUG_ENTRY("arlan_hw_tx");
- if (TXHEAD(dev).offset)
- headEnds = (((TXHEAD(dev).offset + TXHEAD(dev).length - offsetof(struct arlan_shmem, txBuffer)) / 64) + 1) * 64;
- if (TXTAIL(dev).offset)
- tailStarts = 0x800 - (((TXTAIL(dev).offset - offsetof(struct arlan_shmem, txBuffer)) / 64) + 2) * 64;
-
-
- if (!TXHEAD(dev).offset && length < tailStarts)
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk(KERN_ERR "TXHEAD insert, tailStart %d\n", tailStarts);
-
- TXHEAD(dev).offset =
- offsetof(struct arlan_shmem, txBuffer);
- TXHEAD(dev).length = length - ARLAN_FAKE_HDR_LEN;
- for (i = 0; i < 6; i++)
- TXHEAD(dev).dest[i] = buf[i];
- TXHEAD(dev).clear = conf->txClear;
- TXHEAD(dev).retries = conf->txRetries; /* 0 is use default */
- TXHEAD(dev).routing = conf->txRouting;
- TXHEAD(dev).scrambled = conf->txScrambled;
- memcpy_toio((char __iomem *)arlan + TXHEAD(dev).offset, buf + ARLAN_FAKE_HDR_LEN, TXHEAD(dev).length);
- }
- else if (!TXTAIL(dev).offset && length < (0x800 - headEnds))
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk(KERN_ERR "TXTAIL insert, headEnd %d\n", headEnds);
-
- TXTAIL(dev).offset =
- offsetof(struct arlan_shmem, txBuffer) + 0x800 - (length / 64 + 2) * 64;
- TXTAIL(dev).length = length - ARLAN_FAKE_HDR_LEN;
- for (i = 0; i < 6; i++)
- TXTAIL(dev).dest[i] = buf[i];
- TXTAIL(dev).clear = conf->txClear;
- TXTAIL(dev).retries = conf->txRetries;
- TXTAIL(dev).routing = conf->txRouting;
- TXTAIL(dev).scrambled = conf->txScrambled;
- memcpy_toio(((char __iomem *)arlan + TXTAIL(dev).offset), buf + ARLAN_FAKE_HDR_LEN, TXTAIL(dev).length);
- }
- else
- {
- netif_stop_queue (dev);
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk(KERN_ERR "TX TAIL & HEAD full, return, tailStart %d headEnd %d\n", tailStarts, headEnds);
- return -1;
- }
- priv->out_bytes += length;
- priv->out_bytes10 += length;
- if (conf->measure_rate < 1)
- conf->measure_rate = 1;
- if (time_after(jiffies, priv->out_time + conf->measure_rate * HZ))
- {
- conf->out_speed = priv->out_bytes / conf->measure_rate;
- priv->out_bytes = 0;
- priv->out_time = jiffies;
- }
- if (time_after(jiffies, priv->out_time10 + conf->measure_rate * 10*HZ))
- {
- conf->out_speed10 = priv->out_bytes10 / (10 * conf->measure_rate);
- priv->out_bytes10 = 0;
- priv->out_time10 = jiffies;
- }
- if (TXHEAD(dev).offset && TXTAIL(dev).offset)
- {
- netif_stop_queue (dev);
- return 0;
- }
- else
- netif_start_queue (dev);
-
-
- IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
- printk(KERN_WARNING "%s Transmit t %2x:%2x:%2x:%2x:%2x:%2x f %2x:%2x:%2x:%2x:%2x:%2x \n", dev->name,
- (unsigned char) buf[0], (unsigned char) buf[1], (unsigned char) buf[2], (unsigned char) buf[3],
- (unsigned char) buf[4], (unsigned char) buf[5], (unsigned char) buf[6], (unsigned char) buf[7],
- (unsigned char) buf[8], (unsigned char) buf[9], (unsigned char) buf[10], (unsigned char) buf[11]);
-
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_ERR "TX command prepare for buffer %d\n", priv->txLast);
-
- arlan_command(dev, ARLAN_COMMAND_TX);
-
- priv->tx_last_sent = jiffies;
-
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk("%s TX Qued %d bytes \n", dev->name, length);
-
- ARLAN_DEBUG_EXIT("arlan_hw_tx");
-
- return 0;
-}
-
-
-static int arlan_hw_config(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
- struct arlan_conf_stru *conf = priv->Conf;
-
- ARLAN_DEBUG_ENTRY("arlan_hw_config");
-
- printk(KERN_NOTICE "%s arlan configure called \n", dev->name);
- if (arlan_EEPROM_bad)
- printk(KERN_NOTICE "arlan configure with eeprom bad option \n");
-
-
- WRITESHM(arlan->spreadingCode, conf->spreadingCode, u_char);
- WRITESHM(arlan->channelSet, conf->channelSet, u_char);
-
- if (arlan_EEPROM_bad)
- WRITESHM(arlan->defaultChannelSet, conf->channelSet, u_char);
-
- WRITESHM(arlan->channelNumber, conf->channelNumber, u_char);
-
- WRITESHM(arlan->scramblingDisable, conf->scramblingDisable, u_char);
- WRITESHM(arlan->txAttenuation, conf->txAttenuation, u_char);
-
- WRITESHM(arlan->systemId, conf->systemId, u_int);
-
- WRITESHM(arlan->maxRetries, conf->maxRetries, u_char);
- WRITESHM(arlan->receiveMode, conf->receiveMode, u_char);
- WRITESHM(arlan->priority, conf->priority, u_char);
- WRITESHM(arlan->rootOrRepeater, conf->rootOrRepeater, u_char);
- WRITESHM(arlan->SID, conf->SID, u_int);
-
- WRITESHM(arlan->registrationMode, conf->registrationMode, u_char);
-
- WRITESHM(arlan->registrationFill, conf->registrationFill, u_char);
- WRITESHM(arlan->localTalkAddress, conf->localTalkAddress, u_char);
- WRITESHM(arlan->codeFormat, conf->codeFormat, u_char);
- WRITESHM(arlan->numChannels, conf->numChannels, u_char);
- WRITESHM(arlan->channel1, conf->channel1, u_char);
- WRITESHM(arlan->channel2, conf->channel2, u_char);
- WRITESHM(arlan->channel3, conf->channel3, u_char);
- WRITESHM(arlan->channel4, conf->channel4, u_char);
- WRITESHM(arlan->radioNodeId, conf->radioNodeId, u_short);
- WRITESHM(arlan->SID, conf->SID, u_int);
- WRITESHM(arlan->waitTime, conf->waitTime, u_short);
- WRITESHM(arlan->lParameter, conf->lParameter, u_short);
- memcpy_toio(&(arlan->_15), &(conf->_15), 3);
- WRITESHM(arlan->_15, conf->_15, u_short);
- WRITESHM(arlan->headerSize, conf->headerSize, u_short);
- if (arlan_EEPROM_bad)
- WRITESHM(arlan->hardwareType, conf->hardwareType, u_char);
- WRITESHM(arlan->radioType, conf->radioType, u_char);
- if (arlan_EEPROM_bad)
- WRITESHM(arlan->radioModule, conf->radioType, u_char);
-
- memcpy_toio(arlan->encryptionKey + keyStart, encryptionKey, 8);
- memcpy_toio(arlan->name, conf->siteName, 16);
-
- WRITESHMB(arlan->commandByte, ARLAN_COM_INT | ARLAN_COM_CONF); /* do configure */
- memset_io(arlan->commandParameter, 0, 0xf); /* 0xf */
- memset_io(arlan->commandParameter + 1, 0, 2);
- if (conf->writeEEPROM)
- {
- memset_io(arlan->commandParameter, conf->writeEEPROM, 1);
-// conf->writeEEPROM=0;
- }
- if (conf->registrationMode && conf->registrationInterrupts)
- memset_io(arlan->commandParameter + 3, 1, 1);
- else
- memset_io(arlan->commandParameter + 3, 0, 1);
-
- priv->irq_test_done = 0;
-
- if (conf->tx_queue_len)
- dev->tx_queue_len = conf->tx_queue_len;
- udelay(100);
-
- ARLAN_DEBUG_EXIT("arlan_hw_config");
- return 0;
-}
-
-
-static int arlan_read_card_configuration(struct net_device *dev)
-{
- u_char tlx415;
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
- struct arlan_conf_stru *conf = priv->Conf;
-
- ARLAN_DEBUG_ENTRY("arlan_read_card_configuration");
-
- if (radioNodeId == radioNodeIdUNKNOWN)
- {
- READSHM(conf->radioNodeId, arlan->radioNodeId, u_short);
- }
- else
- conf->radioNodeId = radioNodeId;
-
- if (SID == SIDUNKNOWN)
- {
- READSHM(conf->SID, arlan->SID, u_int);
- }
- else conf->SID = SID;
-
- if (spreadingCode == spreadingCodeUNKNOWN)
- {
- READSHM(conf->spreadingCode, arlan->spreadingCode, u_char);
- }
- else
- conf->spreadingCode = spreadingCode;
-
- if (channelSet == channelSetUNKNOWN)
- {
- READSHM(conf->channelSet, arlan->channelSet, u_char);
- }
- else conf->channelSet = channelSet;
-
- if (channelNumber == channelNumberUNKNOWN)
- {
- READSHM(conf->channelNumber, arlan->channelNumber, u_char);
- }
- else conf->channelNumber = channelNumber;
-
- READSHM(conf->scramblingDisable, arlan->scramblingDisable, u_char);
- READSHM(conf->txAttenuation, arlan->txAttenuation, u_char);
-
- if (systemId == systemIdUNKNOWN)
- {
- READSHM(conf->systemId, arlan->systemId, u_int);
- }
- else conf->systemId = systemId;
-
- READSHM(conf->maxDatagramSize, arlan->maxDatagramSize, u_short);
- READSHM(conf->maxFrameSize, arlan->maxFrameSize, u_short);
- READSHM(conf->maxRetries, arlan->maxRetries, u_char);
- READSHM(conf->receiveMode, arlan->receiveMode, u_char);
- READSHM(conf->priority, arlan->priority, u_char);
- READSHM(conf->rootOrRepeater, arlan->rootOrRepeater, u_char);
-
- if (SID == SIDUNKNOWN)
- {
- READSHM(conf->SID, arlan->SID, u_int);
- }
- else conf->SID = SID;
-
- if (registrationMode == registrationModeUNKNOWN)
- {
- READSHM(conf->registrationMode, arlan->registrationMode, u_char);
- }
- else conf->registrationMode = registrationMode;
-
- READSHM(conf->registrationFill, arlan->registrationFill, u_char);
- READSHM(conf->localTalkAddress, arlan->localTalkAddress, u_char);
- READSHM(conf->codeFormat, arlan->codeFormat, u_char);
- READSHM(conf->numChannels, arlan->numChannels, u_char);
- READSHM(conf->channel1, arlan->channel1, u_char);
- READSHM(conf->channel2, arlan->channel2, u_char);
- READSHM(conf->channel3, arlan->channel3, u_char);
- READSHM(conf->channel4, arlan->channel4, u_char);
- READSHM(conf->waitTime, arlan->waitTime, u_short);
- READSHM(conf->lParameter, arlan->lParameter, u_short);
- READSHM(conf->_15, arlan->_15, u_short);
- READSHM(conf->headerSize, arlan->headerSize, u_short);
- READSHM(conf->hardwareType, arlan->hardwareType, u_char);
- READSHM(conf->radioType, arlan->radioModule, u_char);
-
- if (conf->radioType == 0)
- conf->radioType = 0xc;
-
- WRITESHM(arlan->configStatus, 0xA5, u_char);
- READSHM(tlx415, arlan->configStatus, u_char);
-
- if (tlx415 != 0xA5)
- printk(KERN_INFO "%s tlx415 chip \n", dev->name);
-
- conf->txClear = 0;
- conf->txRetries = 1;
- conf->txRouting = 1;
- conf->txScrambled = 0;
- conf->rxParameter = 1;
- conf->txTimeoutMs = 4000;
- conf->waitCardTimeout = 100000;
- conf->receiveMode = ARLAN_RCV_CLEAN;
- memcpy_fromio(conf->siteName, arlan->name, 16);
- conf->siteName[16] = '\0';
- conf->retries = retries;
- conf->tx_delay_ms = tx_delay_ms;
- conf->ReTransmitPacketMaxSize = 200;
- conf->waitReTransmitPacketMaxSize = 200;
- conf->txAckTimeoutMs = 900;
- conf->fastReTransCount = 3;
-
- ARLAN_DEBUG_EXIT("arlan_read_card_configuration");
-
- return 0;
-}
-
-
-static int lastFoundAt = 0xbe000;
-
-
-/*
- * This is the real probe routine. Linux has a history of friendly device
- * probes on the ISA bus. A good device probes avoids doing writes, and
- * verifies that the correct device exists and functions.
- */
-#define ARLAN_SHMEM_SIZE 0x2000
-static int __init arlan_check_fingerprint(unsigned long memaddr)
-{
- static const char probeText[] = "TELESYSTEM SLW INC. ARLAN \0";
- volatile struct arlan_shmem __iomem *arlan = (struct arlan_shmem *) memaddr;
- unsigned long paddr = virt_to_phys((void *) memaddr);
- char tempBuf[49];
-
- ARLAN_DEBUG_ENTRY("arlan_check_fingerprint");
-
- if (!request_mem_region(paddr, ARLAN_SHMEM_SIZE, "arlan")) {
- // printk(KERN_WARNING "arlan: memory region %lx excluded from probing \n",paddr);
- return -ENODEV;
- }
-
- memcpy_fromio(tempBuf, arlan->textRegion, 29);
- tempBuf[30] = 0;
-
- /* check for card at this address */
- if (0 != strncmp(tempBuf, probeText, 29)){
- release_mem_region(paddr, ARLAN_SHMEM_SIZE);
- return -ENODEV;
- }
-
-// printk(KERN_INFO "arlan found at 0x%x \n",memaddr);
- ARLAN_DEBUG_EXIT("arlan_check_fingerprint");
-
- return 0;
-}
-
-static int arlan_change_mtu(struct net_device *dev, int new_mtu)
-{
- struct arlan_private *priv = netdev_priv(dev);
- struct arlan_conf_stru *conf = priv->Conf;
-
- ARLAN_DEBUG_ENTRY("arlan_change_mtu");
- if (new_mtu > 2032)
- return -EINVAL;
- dev->mtu = new_mtu;
- if (new_mtu < 256)
- new_mtu = 256; /* cards book suggests 1600 */
- conf->maxDatagramSize = new_mtu;
- conf->maxFrameSize = new_mtu + 48;
-
- arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_CONF);
- printk(KERN_NOTICE "%s mtu changed to %d \n", dev->name, new_mtu);
-
- ARLAN_DEBUG_EXIT("arlan_change_mtu");
-
- return 0;
-}
-
-static int arlan_mac_addr(struct net_device *dev, void *p)
-{
- struct sockaddr *addr = p;
-
-
- ARLAN_DEBUG_ENTRY("arlan_mac_addr");
- return -EINVAL;
-
- if (netif_running(dev))
- return -EBUSY;
- memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
-
- ARLAN_DEBUG_EXIT("arlan_mac_addr");
- return 0;
-}
-
-static const struct net_device_ops arlan_netdev_ops = {
- .ndo_open = arlan_open,
- .ndo_stop = arlan_close,
- .ndo_start_xmit = arlan_tx,
- .ndo_get_stats = arlan_statistics,
- .ndo_set_multicast_list = arlan_set_multicast,
- .ndo_change_mtu = arlan_change_mtu,
- .ndo_set_mac_address = arlan_mac_addr,
- .ndo_tx_timeout = arlan_tx_timeout,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-static int __init arlan_setup_device(struct net_device *dev, int num)
-{
- struct arlan_private *ap = netdev_priv(dev);
- int err;
-
- ARLAN_DEBUG_ENTRY("arlan_setup_device");
-
- ap->conf = (struct arlan_shmem *)(ap+1);
-
- dev->tx_queue_len = tx_queue_len;
- dev->netdev_ops = &arlan_netdev_ops;
- dev->watchdog_timeo = 3*HZ;
-
- ap->irq_test_done = 0;
- ap->Conf = &arlan_conf[num];
-
- ap->Conf->pre_Command_Wait = 40;
- ap->Conf->rx_tweak1 = 30;
- ap->Conf->rx_tweak2 = 0;
-
-
- err = register_netdev(dev);
- if (err) {
- release_mem_region(virt_to_phys((void *) dev->mem_start),
- ARLAN_SHMEM_SIZE);
- free_netdev(dev);
- return err;
- }
- arlan_device[num] = dev;
- ARLAN_DEBUG_EXIT("arlan_setup_device");
- return 0;
-}
-
-static int __init arlan_probe_here(struct net_device *dev,
- unsigned long memaddr)
-{
- struct arlan_private *ap = netdev_priv(dev);
-
- ARLAN_DEBUG_ENTRY("arlan_probe_here");
-
- if (arlan_check_fingerprint(memaddr))
- return -ENODEV;
-
- printk(KERN_NOTICE "%s: Arlan found at %llx, \n ", dev->name,
- (u64) virt_to_phys((void*)memaddr));
-
- ap->card = (void *) memaddr;
- dev->mem_start = memaddr;
- dev->mem_end = memaddr + ARLAN_SHMEM_SIZE-1;
-
- if (dev->irq < 2)
- {
- READSHM(dev->irq, ap->card->irqLevel, u_char);
- } else if (dev->irq == 2)
- dev->irq = 9;
-
- arlan_read_card_configuration(dev);
-
- ARLAN_DEBUG_EXIT("arlan_probe_here");
- return 0;
-}
-
-
-static int arlan_open(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
- int ret = 0;
-
- ARLAN_DEBUG_ENTRY("arlan_open");
-
- ret = request_irq(dev->irq, &arlan_interrupt, 0, dev->name, dev);
- if (ret)
- {
- printk(KERN_ERR "%s: unable to get IRQ %d .\n",
- dev->name, dev->irq);
- return ret;
- }
-
-
- priv->bad = 0;
- priv->lastReset = 0;
- priv->reset = 0;
- memcpy_fromio(dev->dev_addr, arlan->lanCardNodeId, 6);
- memset(dev->broadcast, 0xff, 6);
- dev->tx_queue_len = tx_queue_len;
- priv->interrupt_processing_active = 0;
- spin_lock_init(&priv->lock);
-
- netif_start_queue (dev);
-
- priv->registrationLostCount = 0;
- priv->registrationLastSeen = jiffies;
- priv->txLast = 0;
- priv->tx_command_given = 0;
- priv->rx_command_given = 0;
-
- priv->reRegisterExp = 1;
- priv->tx_last_sent = jiffies - 1;
- priv->tx_last_cleared = jiffies;
- priv->Conf->writeEEPROM = 0;
- priv->Conf->registrationInterrupts = 1;
-
- init_timer(&priv->timer);
- priv->timer.expires = jiffies + HZ / 10;
- priv->timer.data = (unsigned long) dev;
- priv->timer.function = &arlan_registration_timer; /* timer handler */
-
- arlan_command(dev, ARLAN_COMMAND_POWERUP | ARLAN_COMMAND_LONG_WAIT_NOW);
- mdelay(200);
- add_timer(&priv->timer);
-
- ARLAN_DEBUG_EXIT("arlan_open");
- return 0;
-}
-
-
-static void arlan_tx_timeout (struct net_device *dev)
-{
- printk(KERN_ERR "%s: arlan transmit timed out, kernel decided\n", dev->name);
- /* Try to restart the adaptor. */
- arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
- // dev->trans_start = jiffies;
- // netif_start_queue (dev);
-}
-
-
-static netdev_tx_t arlan_tx(struct sk_buff *skb, struct net_device *dev)
-{
- short length;
- unsigned char *buf;
-
- ARLAN_DEBUG_ENTRY("arlan_tx");
-
- length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
- buf = skb->data;
-
- if (length + 0x12 > 0x800) {
- printk(KERN_ERR "TX RING overflow \n");
- netif_stop_queue (dev);
- }
-
- if (arlan_hw_tx(dev, buf, length) == -1)
- goto bad_end;
-
- dev->trans_start = jiffies;
-
- dev_kfree_skb(skb);
-
- arlan_process_interrupt(dev);
- ARLAN_DEBUG_EXIT("arlan_tx");
- return NETDEV_TX_OK;
-
-bad_end:
- arlan_process_interrupt(dev);
- netif_stop_queue (dev);
- ARLAN_DEBUG_EXIT("arlan_tx");
- return NETDEV_TX_BUSY;
-}
-
-
-static inline int DoNotReTransmitCrap(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
-
- if (TXLAST(dev).length < priv->Conf->ReTransmitPacketMaxSize)
- return 1;
- return 0;
-
-}
-
-static inline int DoNotWaitReTransmitCrap(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
-
- if (TXLAST(dev).length < priv->Conf->waitReTransmitPacketMaxSize)
- return 1;
- return 0;
-}
-
-static inline void arlan_queue_retransmit(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
-
- ARLAN_DEBUG_ENTRY("arlan_queue_retransmit");
-
- if (DoNotWaitReTransmitCrap(dev))
- {
- arlan_drop_tx(dev);
- } else
- priv->ReTransmitRequested++;
-
- ARLAN_DEBUG_EXIT("arlan_queue_retransmit");
-}
-
-static inline void RetryOrFail(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
-
- ARLAN_DEBUG_ENTRY("RetryOrFail");
-
- if (priv->retransmissions > priv->Conf->retries ||
- DoNotReTransmitCrap(dev))
- {
- arlan_drop_tx(dev);
- }
- else if (priv->bad <= priv->Conf->fastReTransCount)
- {
- arlan_retransmit_now(dev);
- }
- else arlan_queue_retransmit(dev);
-
- ARLAN_DEBUG_EXIT("RetryOrFail");
-}
-
-
-static void arlan_tx_done_interrupt(struct net_device *dev, int status)
-{
- struct arlan_private *priv = netdev_priv(dev);
-
- ARLAN_DEBUG_ENTRY("arlan_tx_done_interrupt");
-
- priv->tx_last_cleared = jiffies;
- priv->tx_command_given = 0;
- switch (status)
- {
- case 1:
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk("arlan intr: transmit OK\n");
- dev->stats.tx_packets++;
- priv->bad = 0;
- priv->reset = 0;
- priv->retransmissions = 0;
- if (priv->Conf->tx_delay_ms)
- {
- priv->tx_done_delayed = jiffies + (priv->Conf->tx_delay_ms * HZ) / 1000 + 1;
- }
- else
- {
- TXLAST(dev).offset = 0;
- if (priv->txLast)
- priv->txLast = 0;
- else if (TXTAIL(dev).offset)
- priv->txLast = 1;
- if (TXLAST(dev).offset)
- {
- arlan_retransmit_now(dev);
- dev->trans_start = jiffies;
- }
- if (!TXHEAD(dev).offset || !TXTAIL(dev).offset)
- {
- netif_wake_queue (dev);
- }
- }
- }
- break;
-
- case 2:
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk("arlan intr: transmit timed out\n");
- priv->bad += 1;
- //arlan_queue_retransmit(dev);
- RetryOrFail(dev);
- }
- break;
-
- case 3:
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk("arlan intr: transmit max retries\n");
- priv->bad += 1;
- priv->reset = 0;
- //arlan_queue_retransmit(dev);
- RetryOrFail(dev);
- }
- break;
-
- case 4:
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk("arlan intr: transmit aborted\n");
- priv->bad += 1;
- arlan_queue_retransmit(dev);
- //RetryOrFail(dev);
- }
- break;
-
- case 5:
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk("arlan intr: transmit not registered\n");
- priv->bad += 1;
- //debug=101;
- arlan_queue_retransmit(dev);
- }
- break;
-
- case 6:
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk("arlan intr: transmit destination full\n");
- priv->bad += 1;
- priv->reset = 0;
- //arlan_drop_tx(dev);
- arlan_queue_retransmit(dev);
- }
- break;
-
- case 7:
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk("arlan intr: transmit unknown ack\n");
- priv->bad += 1;
- priv->reset = 0;
- arlan_queue_retransmit(dev);
- }
- break;
-
- case 8:
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk("arlan intr: transmit dest mail box full\n");
- priv->bad += 1;
- priv->reset = 0;
- //arlan_drop_tx(dev);
- arlan_queue_retransmit(dev);
- }
- break;
-
- case 9:
- {
- IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
- printk("arlan intr: transmit root dest not reg.\n");
- priv->bad += 1;
- priv->reset = 1;
- //arlan_drop_tx(dev);
- arlan_queue_retransmit(dev);
- }
- break;
-
- default:
- {
- printk(KERN_ERR "arlan intr: transmit status unknown\n");
- priv->bad += 1;
- priv->reset = 1;
- arlan_drop_tx(dev);
- }
- }
-
- ARLAN_DEBUG_EXIT("arlan_tx_done_interrupt");
-}
-
-
-static void arlan_rx_interrupt(struct net_device *dev, u_char rxStatus, u_short rxOffset, u_short pkt_len)
-{
- char *skbtmp;
- int i = 0;
-
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
- struct arlan_conf_stru *conf = priv->Conf;
-
-
- ARLAN_DEBUG_ENTRY("arlan_rx_interrupt");
- // by spec, not WRITESHMB(arlan->rxStatus,0x00);
- // prohibited here arlan_command(dev, ARLAN_COMMAND_RX);
-
- if (pkt_len < 10 || pkt_len > 2048)
- {
- printk(KERN_WARNING "%s: got too short or long packet, len %d \n", dev->name, pkt_len);
- return;
- }
- if (rxOffset + pkt_len > 0x2000)
- {
- printk("%s: got too long packet, len %d offset %x\n", dev->name, pkt_len, rxOffset);
- return;
- }
- priv->in_bytes += pkt_len;
- priv->in_bytes10 += pkt_len;
- if (conf->measure_rate < 1)
- conf->measure_rate = 1;
- if (time_after(jiffies, priv->in_time + conf->measure_rate * HZ))
- {
- conf->in_speed = priv->in_bytes / conf->measure_rate;
- priv->in_bytes = 0;
- priv->in_time = jiffies;
- }
- if (time_after(jiffies, priv->in_time10 + conf->measure_rate * 10*HZ))
- {
- conf->in_speed10 = priv->in_bytes10 / (10 * conf->measure_rate);
- priv->in_bytes10 = 0;
- priv->in_time10 = jiffies;
- }
- DEBUGSHM(1, "arlan rcv pkt rxStatus= %d ", arlan->rxStatus, u_char);
- switch (rxStatus)
- {
- case 1:
- case 2:
- case 3:
- {
- /* Malloc up new buffer. */
- struct sk_buff *skb;
-
- DEBUGSHM(50, "arlan recv pkt offs=%d\n", arlan->rxOffset, u_short);
- DEBUGSHM(1, "arlan rxFrmType = %d \n", arlan->rxFrmType, u_char);
- DEBUGSHM(1, KERN_INFO "arlan rx scrambled = %d \n", arlan->scrambled, u_char);
-
- /* here we do multicast filtering to avoid slow 8-bit memcopy */
-#ifdef ARLAN_MULTICAST
- if (!(dev->flags & IFF_ALLMULTI) &&
- !(dev->flags & IFF_PROMISC) &&
- dev->mc_list)
- {
- char hw_dst_addr[6];
- struct dev_mc_list *dmi = dev->mc_list;
- int i;
-
- memcpy_fromio(hw_dst_addr, arlan->ultimateDestAddress, 6);
- if (hw_dst_addr[0] == 0x01)
- {
- if (mdebug)
- if (hw_dst_addr[1] == 0x00)
- printk(KERN_ERR "%s mcast 0x0100 \n", dev->name);
- else if (hw_dst_addr[1] == 0x40)
- printk(KERN_ERR "%s m/bcast 0x0140 \n", dev->name);
- while (dmi)
- {
- if (dmi->dmi_addrlen == 6) {
- if (arlan_debug & ARLAN_DEBUG_HEADER_DUMP)
- printk(KERN_ERR "%s mcl %pM\n",
- dev->name, dmi->dmi_addr);
- for (i = 0; i < 6; i++)
- if (dmi->dmi_addr[i] != hw_dst_addr[i])
- break;
- if (i == 6)
- break;
- } else
- printk(KERN_ERR "%s: invalid multicast address length given.\n", dev->name);
- dmi = dmi->next;
- }
- /* we reach here if multicast filtering is on and packet
- * is multicast and not for receive */
- goto end_of_interrupt;
- }
- }
-#endif // ARLAN_MULTICAST
- /* multicast filtering ends here */
- pkt_len += ARLAN_FAKE_HDR_LEN;
-
- skb = dev_alloc_skb(pkt_len + 4);
- if (skb == NULL)
- {
- printk(KERN_ERR "%s: Memory squeeze, dropping packet.\n", dev->name);
- dev->stats.rx_dropped++;
- break;
- }
- skb_reserve(skb, 2);
- skbtmp = skb_put(skb, pkt_len);
-
- memcpy_fromio(skbtmp + ARLAN_FAKE_HDR_LEN, ((char __iomem *) arlan) + rxOffset, pkt_len - ARLAN_FAKE_HDR_LEN);
- memcpy_fromio(skbtmp, arlan->ultimateDestAddress, 6);
- memcpy_fromio(skbtmp + 6, arlan->rxSrc, 6);
- WRITESHMB(arlan->rxStatus, 0x00);
- arlan_command(dev, ARLAN_COMMAND_RX);
-
- IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
- {
- char immedDestAddress[6];
- char immedSrcAddress[6];
- memcpy_fromio(immedDestAddress, arlan->immedDestAddress, 6);
- memcpy_fromio(immedSrcAddress, arlan->immedSrcAddress, 6);
-
- printk(KERN_WARNING "%s t %pM f %pM imd %pM ims %pM\n",
- dev->name, skbtmp,
- &skbtmp[6],
- immedDestAddress,
- immedSrcAddress);
- }
- skb->protocol = eth_type_trans(skb, dev);
- IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
- if (skb->protocol != 0x608 && skb->protocol != 0x8)
- {
- for (i = 0; i <= 22; i++)
- printk("%02x:", (u_char) skbtmp[i + 12]);
- printk(KERN_ERR "\n");
- printk(KERN_WARNING "arlan kernel pkt type trans %x \n", skb->protocol);
- }
- netif_rx(skb);
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += pkt_len;
- }
- break;
-
- default:
- printk(KERN_ERR "arlan intr: received unknown status\n");
- dev->stats.rx_crc_errors++;
- break;
- }
- ARLAN_DEBUG_EXIT("arlan_rx_interrupt");
-}
-
-static void arlan_process_interrupt(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
- u_char rxStatus = READSHMB(arlan->rxStatus);
- u_char txStatus = READSHMB(arlan->txStatus);
- u_short rxOffset = READSHMS(arlan->rxOffset);
- u_short pkt_len = READSHMS(arlan->rxLength);
- int interrupt_count = 0;
-
- ARLAN_DEBUG_ENTRY("arlan_process_interrupt");
-
- if (test_and_set_bit(0, (void *) &priv->interrupt_processing_active))
- {
- if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
- printk(KERN_ERR "interrupt chain reentering \n");
- goto end_int_process;
- }
- while ((rxStatus || txStatus || priv->interrupt_ack_requested)
- && (interrupt_count < 5))
- {
- if (rxStatus)
- priv->last_rx_int_ack_time = jiffies;
-
- arlan_command(dev, ARLAN_COMMAND_INT_ACK);
- arlan_command(dev, ARLAN_COMMAND_INT_ENABLE);
-
- IFDEBUG(ARLAN_DEBUG_INTERRUPT)
- printk(KERN_ERR "%s: got IRQ rx %x tx %x comm %x rxOff %x rxLen %x \n",
- dev->name, rxStatus, txStatus, READSHMB(arlan->commandByte),
- rxOffset, pkt_len);
-
- if (rxStatus == 0 && txStatus == 0)
- {
- if (priv->irq_test_done)
- {
- if (!registrationBad(dev))
- IFDEBUG(ARLAN_DEBUG_INTERRUPT) printk(KERN_ERR "%s unknown interrupt(nop? regLost ?) reason tx %d rx %d ",
- dev->name, txStatus, rxStatus);
- } else {
- IFDEBUG(ARLAN_DEBUG_INTERRUPT)
- printk(KERN_INFO "%s irq $%d test OK \n", dev->name, dev->irq);
-
- }
- priv->interrupt_ack_requested = 0;
- goto ends;
- }
- if (txStatus != 0)
- {
- WRITESHMB(arlan->txStatus, 0x00);
- arlan_tx_done_interrupt(dev, txStatus);
- goto ends;
- }
- if (rxStatus == 1 || rxStatus == 2)
- { /* a packet waiting */
- arlan_rx_interrupt(dev, rxStatus, rxOffset, pkt_len);
- goto ends;
- }
- if (rxStatus > 2 && rxStatus < 0xff)
- {
- WRITESHMB(arlan->rxStatus, 0x00);
- printk(KERN_ERR "%s unknown rxStatus reason tx %d rx %d ",
- dev->name, txStatus, rxStatus);
- goto ends;
- }
- if (rxStatus == 0xff)
- {
- WRITESHMB(arlan->rxStatus, 0x00);
- arlan_command(dev, ARLAN_COMMAND_RX);
- if (registrationBad(dev))
- netif_device_detach(dev);
- if (!registrationBad(dev))
- {
- priv->registrationLastSeen = jiffies;
- if (!netif_queue_stopped(dev) && !priv->under_reset && !priv->under_config)
- netif_wake_queue (dev);
- }
- goto ends;
- }
-ends:
-
- arlan_command_process(dev);
-
- rxStatus = READSHMB(arlan->rxStatus);
- txStatus = READSHMB(arlan->txStatus);
- rxOffset = READSHMS(arlan->rxOffset);
- pkt_len = READSHMS(arlan->rxLength);
-
-
- priv->irq_test_done = 1;
-
- interrupt_count++;
- }
- priv->interrupt_processing_active = 0;
-
-end_int_process:
- arlan_command_process(dev);
-
- ARLAN_DEBUG_EXIT("arlan_process_interrupt");
- return;
-}
-
-static irqreturn_t arlan_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
- u_char rxStatus = READSHMB(arlan->rxStatus);
- u_char txStatus = READSHMB(arlan->txStatus);
-
- ARLAN_DEBUG_ENTRY("arlan_interrupt");
-
-
- if (!rxStatus && !txStatus)
- priv->interrupt_ack_requested++;
-
- arlan_process_interrupt(dev);
-
- priv->irq_test_done = 1;
-
- ARLAN_DEBUG_EXIT("arlan_interrupt");
- return IRQ_HANDLED;
-
-}
-
-
-static int arlan_close(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
-
- ARLAN_DEBUG_ENTRY("arlan_close");
-
- del_timer_sync(&priv->timer);
-
- arlan_command(dev, ARLAN_COMMAND_POWERDOWN);
-
- IFDEBUG(ARLAN_DEBUG_STARTUP)
- printk(KERN_NOTICE "%s: Closing device\n", dev->name);
-
- netif_stop_queue(dev);
- free_irq(dev->irq, dev);
-
- ARLAN_DEBUG_EXIT("arlan_close");
- return 0;
-}
-
-#ifdef ARLAN_DEBUGGING
-static long alignLong(volatile u_char * ptr)
-{
- long ret;
- memcpy_fromio(&ret, (void *) ptr, 4);
- return ret;
-}
-#endif
-
-/*
- * Get the current statistics.
- * This may be called with the card open or closed.
- */
-
-static struct net_device_stats *arlan_statistics(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
-
-
- ARLAN_DEBUG_ENTRY("arlan_statistics");
-
- /* Update the statistics from the device registers. */
-
- READSHM(dev->stats.collisions, arlan->numReTransmissions, u_int);
- READSHM(dev->stats.rx_crc_errors, arlan->numCRCErrors, u_int);
- READSHM(dev->stats.rx_dropped, arlan->numFramesDiscarded, u_int);
- READSHM(dev->stats.rx_fifo_errors, arlan->numRXBufferOverflows, u_int);
- READSHM(dev->stats.rx_frame_errors, arlan->numReceiveFramesLost, u_int);
- READSHM(dev->stats.rx_over_errors, arlan->numRXOverruns, u_int);
- READSHM(dev->stats.rx_packets, arlan->numDatagramsReceived, u_int);
- READSHM(dev->stats.tx_aborted_errors, arlan->numAbortErrors, u_int);
- READSHM(dev->stats.tx_carrier_errors, arlan->numStatusTimeouts, u_int);
- READSHM(dev->stats.tx_dropped, arlan->numDatagramsDiscarded, u_int);
- READSHM(dev->stats.tx_fifo_errors, arlan->numTXUnderruns, u_int);
- READSHM(dev->stats.tx_packets, arlan->numDatagramsTransmitted, u_int);
- READSHM(dev->stats.tx_window_errors, arlan->numHoldOffs, u_int);
-
- ARLAN_DEBUG_EXIT("arlan_statistics");
-
- return &dev->stats;
-}
-
-
-static void arlan_set_multicast(struct net_device *dev)
-{
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
- struct arlan_conf_stru *conf = priv->Conf;
- int board_conf_needed = 0;
-
-
- ARLAN_DEBUG_ENTRY("arlan_set_multicast");
-
- if (dev->flags & IFF_PROMISC)
- {
- unsigned char recMode;
- READSHM(recMode, arlan->receiveMode, u_char);
- conf->receiveMode = (ARLAN_RCV_PROMISC | ARLAN_RCV_CONTROL);
- if (conf->receiveMode != recMode)
- board_conf_needed = 1;
- }
- else
- {
- /* turn off promiscuous mode */
- unsigned char recMode;
- READSHM(recMode, arlan->receiveMode, u_char);
- conf->receiveMode = ARLAN_RCV_CLEAN | ARLAN_RCV_CONTROL;
- if (conf->receiveMode != recMode)
- board_conf_needed = 1;
- }
- if (board_conf_needed)
- arlan_command(dev, ARLAN_COMMAND_CONF);
-
- ARLAN_DEBUG_EXIT("arlan_set_multicast");
-}
-
-
-struct net_device * __init arlan_probe(int unit)
-{
- struct net_device *dev;
- int err;
- int m;
-
- ARLAN_DEBUG_ENTRY("arlan_probe");
-
- if (arlans_found == MAX_ARLANS)
- return ERR_PTR(-ENODEV);
-
- /*
- * Reserve space for local data and a copy of the shared memory
- * that is used by the /proc interface.
- */
- dev = alloc_etherdev(sizeof(struct arlan_private)
- + sizeof(struct arlan_shmem));
- if (!dev)
- return ERR_PTR(-ENOMEM);
-
- if (unit >= 0) {
- sprintf(dev->name, "eth%d", unit);
- netdev_boot_setup_check(dev);
-
- if (dev->mem_start) {
- if (arlan_probe_here(dev, dev->mem_start) == 0)
- goto found;
- goto not_found;
- }
-
- }
-
-
- for (m = (int)phys_to_virt(lastFoundAt) + ARLAN_SHMEM_SIZE;
- m <= (int)phys_to_virt(0xDE000);
- m += ARLAN_SHMEM_SIZE)
- {
- if (arlan_probe_here(dev, m) == 0)
- {
- lastFoundAt = (int)virt_to_phys((void*)m);
- goto found;
- }
- }
-
- if (lastFoundAt == 0xbe000)
- printk(KERN_ERR "arlan: No Arlan devices found \n");
-
- not_found:
- free_netdev(dev);
- return ERR_PTR(-ENODEV);
-
- found:
- err = arlan_setup_device(dev, arlans_found);
- if (err)
- dev = ERR_PTR(err);
- else if (!arlans_found++)
- printk(KERN_INFO "Arlan driver %s\n", arlan_version);
-
- return dev;
-}
-
-#ifdef MODULE
-int __init init_module(void)
-{
- int i = 0;
-
- ARLAN_DEBUG_ENTRY("init_module");
-
- if (channelSet != channelSetUNKNOWN || channelNumber != channelNumberUNKNOWN || systemId != systemIdUNKNOWN)
- return -EINVAL;
-
- for (i = 0; i < MAX_ARLANS; i++) {
- struct net_device *dev = arlan_probe(i);
-
- if (IS_ERR(dev))
- return PTR_ERR(dev);
- }
- init_arlan_proc();
- printk(KERN_INFO "Arlan driver %s\n", arlan_version);
- ARLAN_DEBUG_EXIT("init_module");
- return 0;
-}
-
-
-void __exit cleanup_module(void)
-{
- int i = 0;
- struct net_device *dev;
-
- ARLAN_DEBUG_ENTRY("cleanup_module");
-
- IFDEBUG(ARLAN_DEBUG_SHUTDOWN)
- printk(KERN_INFO "arlan: unloading module\n");
-
- cleanup_arlan_proc();
-
- for (i = 0; i < MAX_ARLANS; i++)
- {
- dev = arlan_device[i];
- if (dev) {
- arlan_command(dev, ARLAN_COMMAND_POWERDOWN );
-
- unregister_netdev(dev);
- release_mem_region(virt_to_phys((void *) dev->mem_start),
- ARLAN_SHMEM_SIZE);
- free_netdev(dev);
- arlan_device[i] = NULL;
- }
- }
-
- ARLAN_DEBUG_EXIT("cleanup_module");
-}
-
-
-#endif
-MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/arlan-proc.c b/drivers/net/wireless/arlan-proc.c
deleted file mode 100644
index a8b6896..0000000
--- a/drivers/net/wireless/arlan-proc.c
+++ /dev/null
@@ -1,1253 +0,0 @@
-#include "arlan.h"
-
-#include <linux/sysctl.h>
-
-#ifdef CONFIG_PROC_FS
-
-/* void enableReceive(struct net_device* dev);
-*/
-
-
-
-#define ARLAN_STR_SIZE 0x2ff0
-#define DEV_ARLAN_INFO 1
-#define DEV_ARLAN 1
-#define SARLG(type,var) {\
- pos += sprintf(arlan_drive_info+pos, "%s\t=\t0x%x\n", #var, READSHMB(priva->card->var)); \
- }
-
-#define SARLBN(type,var,nn) {\
- pos += sprintf(arlan_drive_info+pos, "%s\t=\t0x",#var);\
- for (i=0; i < nn; i++ ) pos += sprintf(arlan_drive_info+pos, "%02x",READSHMB(priva->card->var[i]));\
- pos += sprintf(arlan_drive_info+pos, "\n"); \
- }
-
-#define SARLBNpln(type,var,nn) {\
- for (i=0; i < nn; i++ ) pos += sprintf(arlan_drive_info+pos, "%02x",READSHMB(priva->card->var[i]));\
- }
-
-#define SARLSTR(var,nn) {\
- char tmpStr[400];\
- int tmpLn = nn;\
- if (nn > 399 ) tmpLn = 399; \
- memcpy(tmpStr,(char *) priva->conf->var,tmpLn);\
- tmpStr[tmpLn] = 0; \
- pos += sprintf(arlan_drive_info+pos, "%s\t=\t%s \n",#var,priva->conf->var);\
- }
-
-#define SARLUC(var) SARLG(u_char, var)
-#define SARLUCN(var,nn) SARLBN(u_char,var, nn)
-#define SARLUS(var) SARLG(u_short, var)
-#define SARLUSN(var,nn) SARLBN(u_short,var, nn)
-#define SARLUI(var) SARLG(u_int, var)
-
-#define SARLUSA(var) {\
- u_short tmpVar;\
- memcpy(&tmpVar, (short *) priva->conf->var,2); \
- pos += sprintf(arlan_drive_info+pos, "%s\t=\t0x%x\n",#var, tmpVar);\
-}
-
-#define SARLUIA(var) {\
- u_int tmpVar;\
- memcpy(&tmpVar, (int* )priva->conf->var,4); \
- pos += sprintf(arlan_drive_info+pos, "%s\t=\t0x%x\n",#var, tmpVar);\
-}
-
-
-static const char *arlan_diagnostic_info_string(struct net_device *dev)
-{
-
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
- u_char diagnosticInfo;
-
- READSHM(diagnosticInfo, arlan->diagnosticInfo, u_char);
-
- switch (diagnosticInfo)
- {
- case 0xFF:
- return "Diagnostic info is OK";
- case 0xFE:
- return "ERROR EPROM Checksum error ";
- case 0xFD:
- return "ERROR Local Ram Test Failed ";
- case 0xFC:
- return "ERROR SCC failure ";
- case 0xFB:
- return "ERROR BackBone failure ";
- case 0xFA:
- return "ERROR transceiver not found ";
- case 0xF9:
- return "ERROR no more address space ";
- case 0xF8:
- return "ERROR Checksum error ";
- case 0xF7:
- return "ERROR Missing SS Code";
- case 0xF6:
- return "ERROR Invalid config format";
- case 0xF5:
- return "ERROR Reserved errorcode F5";
- case 0xF4:
- return "ERROR Invalid spreading code/channel number";
- case 0xF3:
- return "ERROR Load Code Error";
- case 0xF2:
- return "ERROR Reserver errorcode F2 ";
- case 0xF1:
- return "ERROR Invalid command receivec by LAN card ";
- case 0xF0:
- return "ERROR Invalid parameter found in command ";
- case 0xEF:
- return "ERROR On-chip timer failure ";
- case 0xEE:
- return "ERROR T410 timer failure ";
- case 0xED:
- return "ERROR Too Many TxEnable commands ";
- case 0xEC:
- return "ERROR EEPROM error on radio module ";
- default:
- return "ERROR unknown Diagnostic info reply code ";
- }
-}
-
-static const char *arlan_hardware_type_string(struct net_device *dev)
-{
- u_char hardwareType;
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
-
- READSHM(hardwareType, arlan->hardwareType, u_char);
- switch (hardwareType)
- {
- case 0x00:
- return "type A450";
- case 0x01:
- return "type A650 ";
- case 0x04:
- return "type TMA coproc";
- case 0x0D:
- return "type A650E ";
- case 0x18:
- return "type TMA coproc Australian";
- case 0x19:
- return "type A650A ";
- case 0x26:
- return "type TMA coproc European";
- case 0x2E:
- return "type A655 ";
- case 0x2F:
- return "type A655A ";
- case 0x30:
- return "type A655E ";
- case 0x0B:
- return "type A670 ";
- case 0x0C:
- return "type A670E ";
- case 0x2D:
- return "type A670A ";
- case 0x0F:
- return "type A411T";
- case 0x16:
- return "type A411TA";
- case 0x1B:
- return "type A440T";
- case 0x1C:
- return "type A412T";
- case 0x1E:
- return "type A412TA";
- case 0x22:
- return "type A411TE";
- case 0x24:
- return "type A412TE";
- case 0x27:
- return "type A671T ";
- case 0x29:
- return "type A671TA ";
- case 0x2B:
- return "type A671TE ";
- case 0x31:
- return "type A415T ";
- case 0x33:
- return "type A415TA ";
- case 0x35:
- return "type A415TE ";
- case 0x37:
- return "type A672";
- case 0x39:
- return "type A672A ";
- case 0x3B:
- return "type A672T";
- case 0x6B:
- return "type IC2200";
- default:
- return "type A672T";
- }
-}
-#ifdef ARLAN_DEBUGGING
-static void arlan_print_diagnostic_info(struct net_device *dev)
-{
- int i;
- u_char diagnosticInfo;
- u_short diagnosticOffset;
- u_char hardwareType;
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
-
- // ARLAN_DEBUG_ENTRY("arlan_print_diagnostic_info");
-
- if (READSHMB(arlan->configuredStatusFlag) == 0)
- printk("Arlan: Card NOT configured\n");
- else
- printk("Arlan: Card is configured\n");
-
- READSHM(diagnosticInfo, arlan->diagnosticInfo, u_char);
- READSHM(diagnosticOffset, arlan->diagnosticOffset, u_short);
-
- printk(KERN_INFO "%s\n", arlan_diagnostic_info_string(dev));
-
- if (diagnosticInfo != 0xff)
- printk("%s arlan: Diagnostic Offset %d \n", dev->name, diagnosticOffset);
-
- printk("arlan: LAN CODE ID = ");
- for (i = 0; i < 6; i++)
- DEBUGSHM(1, "%03d:", arlan->lanCardNodeId[i], u_char);
- printk("\n");
-
- printk("arlan: Arlan BroadCast address = ");
- for (i = 0; i < 6; i++)
- DEBUGSHM(1, "%03d:", arlan->broadcastAddress[i], u_char);
- printk("\n");
-
- READSHM(hardwareType, arlan->hardwareType, u_char);
- printk(KERN_INFO "%s\n", arlan_hardware_type_string(dev));
-
-
- DEBUGSHM(1, "arlan: channelNumber=%d\n", arlan->channelNumber, u_char);
- DEBUGSHM(1, "arlan: channelSet=%d\n", arlan->channelSet, u_char);
- DEBUGSHM(1, "arlan: spreadingCode=%d\n", arlan->spreadingCode, u_char);
- DEBUGSHM(1, "arlan: radioNodeId=%d\n", arlan->radioNodeId, u_short);
- DEBUGSHM(1, "arlan: SID =%d\n", arlan->SID, u_short);
- DEBUGSHM(1, "arlan: rxOffset=%d\n", arlan->rxOffset, u_short);
-
- DEBUGSHM(1, "arlan: registration mode is %d\n", arlan->registrationMode, u_char);
-
- printk("arlan: name= ");
- IFDEBUG(1)
-
- for (i = 0; i < 16; i++)
- {
- char c;
- READSHM(c, arlan->name[i], char);
- if (c)
- printk("%c", c);
- }
- printk("\n");
-
-// ARLAN_DEBUG_EXIT("arlan_print_diagnostic_info");
-
-}
-
-
-/****************************** TEST MEMORY **************/
-
-static int arlan_hw_test_memory(struct net_device *dev)
-{
- u_char *ptr;
- int i;
- int memlen = sizeof(struct arlan_shmem) - 0xF; /* avoid control register */
- volatile char *arlan_mem = (char *) (dev->mem_start);
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
- char pattern;
-
- ptr = NULL;
-
- /* hold card in reset state */
- setHardwareReset(dev);
-
- /* test memory */
- pattern = 0;
- for (i = 0; i < memlen; i++)
- WRITESHM(arlan_mem[i], ((u_char) pattern++), u_char);
-
- pattern = 0;
- for (i = 0; i < memlen; i++)
- {
- char res;
- READSHM(res, arlan_mem[i], char);
- if (res != pattern++)
- {
- printk(KERN_ERR "Arlan driver memory test 1 failed \n");
- return -1;
- }
- }
-
- pattern = 0;
- for (i = 0; i < memlen; i++)
- WRITESHM(arlan_mem[i], ~(pattern++), char);
-
- pattern = 0;
- for (i = 0; i < memlen; i++)
- {
- char res;
- READSHM(res, arlan_mem[i], char);
- if (res != ~(pattern++))
- {
- printk(KERN_ERR "Arlan driver memory test 2 failed \n");
- return -1;
- }
- }
-
- /* zero memory */
- for (i = 0; i < memlen; i++)
- WRITESHM(arlan_mem[i], 0x00, char);
-
- IFDEBUG(1) printk(KERN_INFO "Arlan: memory tests ok\n");
-
- /* set reset flag and then release reset */
- WRITESHM(arlan->resetFlag, 0xff, u_char);
-
- clearChannelAttention(dev);
- clearHardwareReset(dev);
-
- /* wait for reset flag to become zero, we'll wait for two seconds */
- if (arlan_command(dev, ARLAN_COMMAND_LONG_WAIT_NOW))
- {
- printk(KERN_ERR "%s arlan: failed to come back from memory test\n", dev->name);
- return -1;
- }
- return 0;
-}
-
-static int arlan_setup_card_by_book(struct net_device *dev)
-{
- u_char irqLevel, configuredStatusFlag;
- struct arlan_private *priv = netdev_priv(dev);
- volatile struct arlan_shmem __iomem *arlan = priv->card;
-
-// ARLAN_DEBUG_ENTRY("arlan_setup_card");
-
- READSHM(configuredStatusFlag, arlan->configuredStatusFlag, u_char);
-
- IFDEBUG(10)
- if (configuredStatusFlag != 0)
- IFDEBUG(10) printk("arlan: CARD IS CONFIGURED\n");
- else
- IFDEBUG(10) printk("arlan: card is NOT configured\n");
-
- if (testMemory || (READSHMB(arlan->diagnosticInfo) != 0xff))
- if (arlan_hw_test_memory(dev))
- return -1;
-
- DEBUGSHM(4, "arlan configuredStatus = %d \n", arlan->configuredStatusFlag, u_char);
- DEBUGSHM(4, "arlan driver diagnostic: 0x%2x\n", arlan->diagnosticInfo, u_char);
-
- /* issue nop command - no interrupt */
- arlan_command(dev, ARLAN_COMMAND_NOOP);
- if (arlan_command(dev, ARLAN_COMMAND_WAIT_NOW) != 0)
- return -1;
-
- IFDEBUG(50) printk("1st Noop successfully executed !!\n");
-
- /* try to turn on the arlan interrupts */
- clearClearInterrupt(dev);
- setClearInterrupt(dev);
- setInterruptEnable(dev);
-
- /* issue nop command - with interrupt */
-
- arlan_command(dev, ARLAN_COMMAND_NOOPINT);
- if (arlan_command(dev, ARLAN_COMMAND_WAIT_NOW) != 0)
- return -1;
-
-
- IFDEBUG(50) printk("2nd Noop successfully executed !!\n");
-
- READSHM(irqLevel, arlan->irqLevel, u_char)
-
- if (irqLevel != dev->irq)
- {
- IFDEBUG(1) printk(KERN_WARNING "arlan dip switches set irq to %d\n", irqLevel);
- printk(KERN_WARNING "device driver irq set to %d - does not match\n", dev->irq);
- dev->irq = irqLevel;
- }
- else
- IFDEBUG(2) printk("irq level is OK\n");
-
-
- IFDEBUG(3) arlan_print_diagnostic_info(dev);
-
- arlan_command(dev, ARLAN_COMMAND_CONF);
-
- READSHM(configuredStatusFlag, arlan->configuredStatusFlag, u_char);
- if (configuredStatusFlag == 0)
- {
- printk(KERN_WARNING "arlan configure failed\n");
- return -1;
- }
- arlan_command(dev, ARLAN_COMMAND_LONG_WAIT_NOW);
- arlan_command(dev, ARLAN_COMMAND_RX);
- arlan_command(dev, ARLAN_COMMAND_LONG_WAIT_NOW);
- printk(KERN_NOTICE "%s: arlan driver version %s loaded\n",
- dev->name, arlan_version);
-
-// ARLAN_DEBUG_EXIT("arlan_setup_card");
-
- return 0; /* no errors */
-}
-#endif
-
-#ifdef ARLAN_PROC_INTERFACE
-#ifdef ARLAN_PROC_SHM_DUMP
-
-static char arlan_drive_info[ARLAN_STR_SIZE] = "A655\n\0";
-
-static int arlan_sysctl_info(ctl_table * ctl, int write,
- void __user *buffer, size_t * lenp, loff_t *ppos)
-{
- int i;
- int retv, pos, devnum;
- struct arlan_private *priva = NULL;
- struct net_device *dev;
- pos = 0;
- if (write)
- {
- printk("wrirte: ");
- for (i = 0; i < 100; i++)
- printk("adi %x \n", arlan_drive_info[i]);
- }
- if (ctl->procname == NULL || arlan_drive_info == NULL)
- {
- printk(KERN_WARNING " procname is NULL in sysctl_table or arlan_drive_info is NULL \n at arlan module\n ");
- return -1;
- }
- devnum = ctl->procname[5] - '0';
- if (devnum < 0 || devnum > MAX_ARLANS - 1)
- {
- printk(KERN_WARNING "too strange devnum in procfs parse\n ");
- return -1;
- }
- else if (arlan_device[devnum] == NULL)
- {
- if (ctl->procname)
- pos += sprintf(arlan_drive_info + pos, "\t%s\n\n", ctl->procname);
- pos += sprintf(arlan_drive_info + pos, "No device found here \n");
- goto final;
- }
- else
- priva = netdev_priv(arlan_device[devnum]);
-
- if (priva == NULL)
- {
- printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
- return -1;
- }
- dev = arlan_device[devnum];
-
- memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
-
- pos = sprintf(arlan_drive_info, "Arlan info \n");
- /* Header Signature */
- SARLSTR(textRegion, 48);
- SARLUC(resetFlag);
- pos += sprintf(arlan_drive_info + pos, "diagnosticInfo\t=\t%s \n", arlan_diagnostic_info_string(dev));
- SARLUC(diagnosticInfo);
- SARLUS(diagnosticOffset);
- SARLUCN(_1, 12);
- SARLUCN(lanCardNodeId, 6);
- SARLUCN(broadcastAddress, 6);
- pos += sprintf(arlan_drive_info + pos, "hardwareType =\t %s \n", arlan_hardware_type_string(dev));
- SARLUC(hardwareType);
- SARLUC(majorHardwareVersion);
- SARLUC(minorHardwareVersion);
- SARLUC(radioModule);
- SARLUC(defaultChannelSet);
- SARLUCN(_2, 47);
-
- /* Control/Status Block - 0x0080 */
- SARLUC(interruptInProgress);
- SARLUC(cntrlRegImage);
-
- SARLUCN(_3, 14);
- SARLUC(commandByte);
- SARLUCN(commandParameter, 15);
-
- /* Receive Status - 0x00a0 */
- SARLUC(rxStatus);
- SARLUC(rxFrmType);
- SARLUS(rxOffset);
- SARLUS(rxLength);
- SARLUCN(rxSrc, 6);
- SARLUC(rxBroadcastFlag);
- SARLUC(rxQuality);
- SARLUC(scrambled);
- SARLUCN(_4, 1);
-
- /* Transmit Status - 0x00b0 */
- SARLUC(txStatus);
- SARLUC(txAckQuality);
- SARLUC(numRetries);
- SARLUCN(_5, 14);
- SARLUCN(registeredRouter, 6);
- SARLUCN(backboneRouter, 6);
- SARLUC(registrationStatus);
- SARLUC(configuredStatusFlag);
- SARLUCN(_6, 1);
- SARLUCN(ultimateDestAddress, 6);
- SARLUCN(immedDestAddress, 6);
- SARLUCN(immedSrcAddress, 6);
- SARLUS(rxSequenceNumber);
- SARLUC(assignedLocaltalkAddress);
- SARLUCN(_7, 27);
-
- /* System Parameter Block */
-
- /* - Driver Parameters (Novell Specific) */
-
- SARLUS(txTimeout);
- SARLUS(transportTime);
- SARLUCN(_8, 4);
-
- /* - Configuration Parameters */
- SARLUC(irqLevel);
- SARLUC(spreadingCode);
- SARLUC(channelSet);
- SARLUC(channelNumber);
- SARLUS(radioNodeId);
- SARLUCN(_9, 2);
- SARLUC(scramblingDisable);
- SARLUC(radioType);
- SARLUS(routerId);
- SARLUCN(_10, 9);
- SARLUC(txAttenuation);
- SARLUIA(systemId);
- SARLUS(globalChecksum);
- SARLUCN(_11, 4);
- SARLUS(maxDatagramSize);
- SARLUS(maxFrameSize);
- SARLUC(maxRetries);
- SARLUC(receiveMode);
- SARLUC(priority);
- SARLUC(rootOrRepeater);
- SARLUCN(specifiedRouter, 6);
- SARLUS(fastPollPeriod);
- SARLUC(pollDecay);
- SARLUSA(fastPollDelay);
- SARLUC(arlThreshold);
- SARLUC(arlDecay);
- SARLUCN(_12, 1);
- SARLUS(specRouterTimeout);
- SARLUCN(_13, 5);
-
- /* Scrambled Area */
- SARLUIA(SID);
- SARLUCN(encryptionKey, 12);
- SARLUIA(_14);
- SARLUSA(waitTime);
- SARLUSA(lParameter);
- SARLUCN(_15, 3);
- SARLUS(headerSize);
- SARLUS(sectionChecksum);
-
- SARLUC(registrationMode);
- SARLUC(registrationFill);
- SARLUS(pollPeriod);
- SARLUS(refreshPeriod);
- SARLSTR(name, 16);
- SARLUCN(NID, 6);
- SARLUC(localTalkAddress);
- SARLUC(codeFormat);
- SARLUC(numChannels);
- SARLUC(channel1);
- SARLUC(channel2);
- SARLUC(channel3);
- SARLUC(channel4);
- SARLUCN(SSCode, 59);
-
-/* SARLUCN( _16, 0x140);
- */
- /* Statistics Block - 0x0300 */
- SARLUC(hostcpuLock);
- SARLUC(lancpuLock);
- SARLUCN(resetTime, 18);
- SARLUIA(numDatagramsTransmitted);
- SARLUIA(numReTransmissions);
- SARLUIA(numFramesDiscarded);
- SARLUIA(numDatagramsReceived);
- SARLUIA(numDuplicateReceivedFrames);
- SARLUIA(numDatagramsDiscarded);
- SARLUS(maxNumReTransmitDatagram);
- SARLUS(maxNumReTransmitFrames);
- SARLUS(maxNumConsecutiveDuplicateFrames);
- /* misaligned here so we have to go to characters */
- SARLUIA(numBytesTransmitted);
- SARLUIA(numBytesReceived);
- SARLUIA(numCRCErrors);
- SARLUIA(numLengthErrors);
- SARLUIA(numAbortErrors);
- SARLUIA(numTXUnderruns);
- SARLUIA(numRXOverruns);
- SARLUIA(numHoldOffs);
- SARLUIA(numFramesTransmitted);
- SARLUIA(numFramesReceived);
- SARLUIA(numReceiveFramesLost);
- SARLUIA(numRXBufferOverflows);
- SARLUIA(numFramesDiscardedAddrMismatch);
- SARLUIA(numFramesDiscardedSIDMismatch);
- SARLUIA(numPollsTransmistted);
- SARLUIA(numPollAcknowledges);
- SARLUIA(numStatusTimeouts);
- SARLUIA(numNACKReceived);
- SARLUS(auxCmd);
- SARLUCN(dumpPtr, 4);
- SARLUC(dumpVal);
- SARLUC(wireTest);
-
- /* next 4 seems too long for procfs, over single page ?
- SARLUCN( _17, 0x86);
- SARLUCN( txBuffer, 0x800);
- SARLUCN( rxBuffer, 0x800);
- SARLUCN( _18, 0x0bff);
- */
-
- pos += sprintf(arlan_drive_info + pos, "rxRing\t=\t0x");
- for (i = 0; i < 0x50; i++)
- pos += sprintf(arlan_drive_info + pos, "%02x", ((char *) priva->conf)[priva->conf->rxOffset + i]);
- pos += sprintf(arlan_drive_info + pos, "\n");
-
- SARLUC(configStatus);
- SARLUC(_22);
- SARLUC(progIOCtrl);
- SARLUC(shareMBase);
- SARLUC(controlRegister);
-
- pos += sprintf(arlan_drive_info + pos, " total %d chars\n", pos);
- if (ctl)
- if (ctl->procname)
- pos += sprintf(arlan_drive_info + pos, " driver name : %s\n", ctl->procname);
-final:
- *lenp = pos;
-
- if (!write)
- retv = proc_dostring(ctl, write, buffer, lenp, ppos);
- else
- {
- *lenp = 0;
- return -1;
- }
- return retv;
-}
-
-
-static int arlan_sysctl_info161719(ctl_table * ctl, int write,
- void __user *buffer, size_t * lenp, loff_t *ppos)
-{
- int i;
- int retv, pos, devnum;
- struct arlan_private *priva = NULL;
-
- pos = 0;
- devnum = ctl->procname[5] - '0';
- if (arlan_device[devnum] == NULL)
- {
- pos += sprintf(arlan_drive_info + pos, "No device found here \n");
- goto final;
- }
- else
- priva = netdev_priv(arlan_device[devnum]);
- if (priva == NULL)
- {
- printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
- return -1;
- }
- memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
- SARLUCN(_16, 0xC0);
- SARLUCN(_17, 0x6A);
- SARLUCN(_18, 14);
- SARLUCN(_19, 0x86);
- SARLUCN(_21, 0x3fd);
-
-final:
- *lenp = pos;
- retv = proc_dostring(ctl, write, buffer, lenp, ppos);
- return retv;
-}
-
-static int arlan_sysctl_infotxRing(ctl_table * ctl, int write,
- void __user *buffer, size_t * lenp, loff_t *ppos)
-{
- int i;
- int retv, pos, devnum;
- struct arlan_private *priva = NULL;
-
- pos = 0;
- devnum = ctl->procname[5] - '0';
- if (arlan_device[devnum] == NULL)
- {
- pos += sprintf(arlan_drive_info + pos, "No device found here \n");
- goto final;
- }
- else
- priva = netdev_priv(arlan_device[devnum]);
- if (priva == NULL)
- {
- printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
- return -1;
- }
- memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
- SARLBNpln(u_char, txBuffer, 0x800);
-final:
- *lenp = pos;
- retv = proc_dostring(ctl, write, buffer, lenp, ppos);
- return retv;
-}
-
-static int arlan_sysctl_inforxRing(ctl_table * ctl, int write,
- void __user *buffer, size_t * lenp, loff_t *ppos)
-{
- int i;
- int retv, pos, devnum;
- struct arlan_private *priva = NULL;
-
- pos = 0;
- devnum = ctl->procname[5] - '0';
- if (arlan_device[devnum] == NULL)
- {
- pos += sprintf(arlan_drive_info + pos, "No device found here \n");
- goto final;
- } else
- priva = netdev_priv(arlan_device[devnum]);
- if (priva == NULL)
- {
- printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
- return -1;
- }
- memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
- SARLBNpln(u_char, rxBuffer, 0x800);
-final:
- *lenp = pos;
- retv = proc_dostring(ctl, write, buffer, lenp, ppos);
- return retv;
-}
-
-static int arlan_sysctl_info18(ctl_table * ctl, int write,
- void __user *buffer, size_t * lenp, loff_t *ppos)
-{
- int i;
- int retv, pos, devnum;
- struct arlan_private *priva = NULL;
-
- pos = 0;
- devnum = ctl->procname[5] - '0';
- if (arlan_device[devnum] == NULL)
- {
- pos += sprintf(arlan_drive_info + pos, "No device found here \n");
- goto final;
- }
- else
- priva = netdev_priv(arlan_device[devnum]);
- if (priva == NULL)
- {
- printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
- return -1;
- }
- memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
- SARLBNpln(u_char, _18, 0x800);
-
-final:
- *lenp = pos;
- retv = proc_dostring(ctl, write, buffer, lenp, ppos);
- return retv;
-}
-
-
-#endif /* #ifdef ARLAN_PROC_SHM_DUMP */
-
-
-static char conf_reset_result[200];
-
-static int arlan_configure(ctl_table * ctl, int write,
- void __user *buffer, size_t * lenp, loff_t *ppos)
-{
- int pos = 0;
- int devnum = ctl->procname[6] - '0';
- struct arlan_private *priv;
-
- if (devnum < 0 || devnum > MAX_ARLANS - 1)
- {
- printk(KERN_WARNING "too strange devnum in procfs parse\n ");
- return -1;
- }
- else if (arlan_device[devnum] != NULL)
- {
- priv = netdev_priv(arlan_device[devnum]);
-
- arlan_command(arlan_device[devnum], ARLAN_COMMAND_CLEAN_AND_CONF);
- }
- else
- return -1;
-
- *lenp = pos;
- return proc_dostring(ctl, write, buffer, lenp, ppos);
-}
-
-static int arlan_sysctl_reset(ctl_table * ctl, int write,
- void __user *buffer, size_t * lenp, loff_t *ppos)
-{
- int pos = 0;
- int devnum = ctl->procname[5] - '0';
- struct arlan_private *priv;
-
- if (devnum < 0 || devnum > MAX_ARLANS - 1)
- {
- printk(KERN_WARNING "too strange devnum in procfs parse\n ");
- return -1;
- }
- else if (arlan_device[devnum] != NULL)
- {
- priv = netdev_priv(arlan_device[devnum]);
- arlan_command(arlan_device[devnum], ARLAN_COMMAND_CLEAN_AND_RESET);
-
- } else
- return -1;
- *lenp = pos + 3;
- return proc_dostring(ctl, write, buffer, lenp, ppos);
-}
-
-
-/* Place files in /proc/sys/dev/arlan */
-#define CTBLN(num,card,nam) \
- { .ctl_name = num,\
- .procname = #nam,\
- .data = &(arlan_conf[card].nam),\
- .maxlen = sizeof(int), .mode = 0600, .proc_handler = &proc_dointvec}
-#ifdef ARLAN_DEBUGGING
-
-#define ARLAN_PROC_DEBUG_ENTRIES \
- { .ctl_name = 48, .procname = "entry_exit_debug",\
- .data = &arlan_entry_and_exit_debug,\
- .maxlen = sizeof(int), .mode = 0600, .proc_handler = &proc_dointvec},\
- { .ctl_name = 49, .procname = "debug", .data = &arlan_debug,\
- .maxlen = sizeof(int), .mode = 0600, .proc_handler = &proc_dointvec},
-#else
-#define ARLAN_PROC_DEBUG_ENTRIES
-#endif
-
-#define ARLAN_SYSCTL_TABLE_TOTAL(cardNo)\
- CTBLN(1,cardNo,spreadingCode),\
- CTBLN(2,cardNo, channelNumber),\
- CTBLN(3,cardNo, scramblingDisable),\
- CTBLN(4,cardNo, txAttenuation),\
- CTBLN(5,cardNo, systemId), \
- CTBLN(6,cardNo, maxDatagramSize),\
- CTBLN(7,cardNo, maxFrameSize),\
- CTBLN(8,cardNo, maxRetries),\
- CTBLN(9,cardNo, receiveMode),\
- CTBLN(10,cardNo, priority),\
- CTBLN(11,cardNo, rootOrRepeater),\
- CTBLN(12,cardNo, SID),\
- CTBLN(13,cardNo, registrationMode),\
- CTBLN(14,cardNo, registrationFill),\
- CTBLN(15,cardNo, localTalkAddress),\
- CTBLN(16,cardNo, codeFormat),\
- CTBLN(17,cardNo, numChannels),\
- CTBLN(18,cardNo, channel1),\
- CTBLN(19,cardNo, channel2),\
- CTBLN(20,cardNo, channel3),\
- CTBLN(21,cardNo, channel4),\
- CTBLN(22,cardNo, txClear),\
- CTBLN(23,cardNo, txRetries),\
- CTBLN(24,cardNo, txRouting),\
- CTBLN(25,cardNo, txScrambled),\
- CTBLN(26,cardNo, rxParameter),\
- CTBLN(27,cardNo, txTimeoutMs),\
- CTBLN(28,cardNo, waitCardTimeout),\
- CTBLN(29,cardNo, channelSet), \
- {.ctl_name = 30, .procname = "name",\
- .data = arlan_conf[cardNo].siteName,\
- .maxlen = 16, .mode = 0600, .proc_handler = &proc_dostring},\
- CTBLN(31,cardNo,waitTime),\
- CTBLN(32,cardNo,lParameter),\
- CTBLN(33,cardNo,_15),\
- CTBLN(34,cardNo,headerSize),\
- CTBLN(36,cardNo,tx_delay_ms),\
- CTBLN(37,cardNo,retries),\
- CTBLN(38,cardNo,ReTransmitPacketMaxSize),\
- CTBLN(39,cardNo,waitReTransmitPacketMaxSize),\
- CTBLN(40,cardNo,fastReTransCount),\
- CTBLN(41,cardNo,driverRetransmissions),\
- CTBLN(42,cardNo,txAckTimeoutMs),\
- CTBLN(43,cardNo,registrationInterrupts),\
- CTBLN(44,cardNo,hardwareType),\
- CTBLN(45,cardNo,radioType),\
- CTBLN(46,cardNo,writeEEPROM),\
- CTBLN(47,cardNo,writeRadioType),\
- ARLAN_PROC_DEBUG_ENTRIES\
- CTBLN(50,cardNo,in_speed),\
- CTBLN(51,cardNo,out_speed),\
- CTBLN(52,cardNo,in_speed10),\
- CTBLN(53,cardNo,out_speed10),\
- CTBLN(54,cardNo,in_speed_max),\
- CTBLN(55,cardNo,out_speed_max),\
- CTBLN(56,cardNo,measure_rate),\
- CTBLN(57,cardNo,pre_Command_Wait),\
- CTBLN(58,cardNo,rx_tweak1),\
- CTBLN(59,cardNo,rx_tweak2),\
- CTBLN(60,cardNo,tx_queue_len),\
-
-
-
-static ctl_table arlan_conf_table0[] =
-{
- ARLAN_SYSCTL_TABLE_TOTAL(0)
-
-#ifdef ARLAN_PROC_SHM_DUMP
- {
- .ctl_name = 150,
- .procname = "arlan0-txRing",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_infotxRing,
- },
- {
- .ctl_name = 151,
- .procname = "arlan0-rxRing",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_inforxRing,
- },
- {
- .ctl_name = 152,
- .procname = "arlan0-18",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_info18,
- },
- {
- .ctl_name = 153,
- .procname = "arlan0-ring",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_info161719,
- },
- {
- .ctl_name = 154,
- .procname = "arlan0-shm-cpy",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_info,
- },
-#endif
- {
- .ctl_name = 155,
- .procname = "config0",
- .data = &conf_reset_result,
- .maxlen = 100,
- .mode = 0400,
- .proc_handler = &arlan_configure
- },
- {
- .ctl_name = 156,
- .procname = "reset0",
- .data = &conf_reset_result,
- .maxlen = 100,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_reset,
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table arlan_conf_table1[] =
-{
-
- ARLAN_SYSCTL_TABLE_TOTAL(1)
-
-#ifdef ARLAN_PROC_SHM_DUMP
- {
- .ctl_name = 150,
- .procname = "arlan1-txRing",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_infotxRing,
- },
- {
- .ctl_name = 151,
- .procname = "arlan1-rxRing",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_inforxRing,
- },
- {
- .ctl_name = 152,
- .procname = "arlan1-18",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_info18,
- },
- {
- .ctl_name = 153,
- .procname = "arlan1-ring",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_info161719,
- },
- {
- .ctl_name = 154,
- .procname = "arlan1-shm-cpy",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_info,
- },
-#endif
- {
- .ctl_name = 155,
- .procname = "config1",
- .data = &conf_reset_result,
- .maxlen = 100,
- .mode = 0400,
- .proc_handler = &arlan_configure,
- },
- {
- .ctl_name = 156,
- .procname = "reset1",
- .data = &conf_reset_result,
- .maxlen = 100,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_reset,
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table arlan_conf_table2[] =
-{
-
- ARLAN_SYSCTL_TABLE_TOTAL(2)
-
-#ifdef ARLAN_PROC_SHM_DUMP
- {
- .ctl_name = 150,
- .procname = "arlan2-txRing",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_infotxRing,
- },
- {
- .ctl_name = 151,
- .procname = "arlan2-rxRing",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_inforxRing,
- },
- {
- .ctl_name = 152,
- .procname = "arlan2-18",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_info18,
- },
- {
- .ctl_name = 153,
- .procname = "arlan2-ring",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_info161719,
- },
- {
- .ctl_name = 154,
- .procname = "arlan2-shm-cpy",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_info,
- },
-#endif
- {
- .ctl_name = 155,
- .procname = "config2",
- .data = &conf_reset_result,
- .maxlen = 100,
- .mode = 0400,
- .proc_handler = &arlan_configure,
- },
- {
- .ctl_name = 156,
- .procname = "reset2",
- .data = &conf_reset_result,
- .maxlen = 100,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_reset,
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table arlan_conf_table3[] =
-{
-
- ARLAN_SYSCTL_TABLE_TOTAL(3)
-
-#ifdef ARLAN_PROC_SHM_DUMP
- {
- .ctl_name = 150,
- .procname = "arlan3-txRing",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_infotxRing,
- },
- {
- .ctl_name = 151,
- .procname = "arlan3-rxRing",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_inforxRing,
- },
- {
- .ctl_name = 152,
- .procname = "arlan3-18",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_info18,
- },
- {
- .ctl_name = 153,
- .procname = "arlan3-ring",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_info161719,
- },
- {
- .ctl_name = 154,
- .procname = "arlan3-shm-cpy",
- .data = &arlan_drive_info,
- .maxlen = ARLAN_STR_SIZE,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_info,
- },
-#endif
- {
- .ctl_name = 155,
- .procname = "config3",
- .data = &conf_reset_result,
- .maxlen = 100,
- .mode = 0400,
- .proc_handler = &arlan_configure,
- },
- {
- .ctl_name = 156,
- .procname = "reset3",
- .data = &conf_reset_result,
- .maxlen = 100,
- .mode = 0400,
- .proc_handler = &arlan_sysctl_reset,
- },
- { .ctl_name = 0 }
-};
-
-
-
-static ctl_table arlan_table[] =
-{
- {
- .ctl_name = 0,
- .procname = "arlan0",
- .maxlen = 0,
- .mode = 0600,
- .child = arlan_conf_table0,
- },
- {
- .ctl_name = 0,
- .procname = "arlan1",
- .maxlen = 0,
- .mode = 0600,
- .child = arlan_conf_table1,
- },
- {
- .ctl_name = 0,
- .procname = "arlan2",
- .maxlen = 0,
- .mode = 0600,
- .child = arlan_conf_table2,
- },
- {
- .ctl_name = 0,
- .procname = "arlan3",
- .maxlen = 0,
- .mode = 0600,
- .child = arlan_conf_table3,
- },
- { .ctl_name = 0 }
-};
-
-#else
-
-static ctl_table arlan_table[MAX_ARLANS + 1] =
-{
- { .ctl_name = 0 }
-};
-#endif
-
-
-// static int mmtu = 1234;
-
-static ctl_table arlan_root_table[] =
-{
- {
- .ctl_name = CTL_ARLAN,
- .procname = "arlan",
- .maxlen = 0,
- .mode = 0555,
- .child = arlan_table,
- },
- { .ctl_name = 0 }
-};
-
-/* Make sure that /proc/sys/dev is there */
-//static ctl_table arlan_device_root_table[] =
-//{
-// {CTL_DEV, "dev", NULL, 0, 0555, arlan_root_table},
-// {0}
-//};
-
-
-static struct ctl_table_header *arlan_device_sysctl_header;
-
-int __init init_arlan_proc(void)
-{
-
- int i = 0;
- if (arlan_device_sysctl_header)
- return 0;
- for (i = 0; i < MAX_ARLANS && arlan_device[i]; i++)
- arlan_table[i].ctl_name = i + 1;
- arlan_device_sysctl_header = register_sysctl_table(arlan_root_table);
- if (!arlan_device_sysctl_header)
- return -1;
-
- return 0;
-
-}
-
-void __exit cleanup_arlan_proc(void)
-{
- unregister_sysctl_table(arlan_device_sysctl_header);
- arlan_device_sysctl_header = NULL;
-
-}
-#endif
diff --git a/drivers/net/wireless/arlan.h b/drivers/net/wireless/arlan.h
deleted file mode 100644
index fb3ad51..0000000
--- a/drivers/net/wireless/arlan.h
+++ /dev/null
@@ -1,539 +0,0 @@
-/*
- * Copyright (C) 1997 Cullen Jennings
- * Copyright (C) 1998 Elmer.Joandi@ut.ee, +37-255-13500
- * GNU General Public License applies
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/skbuff.h>
-#include <linux/if_ether.h> /* For the statistics structure. */
-#include <linux/if_arp.h> /* For ARPHRD_ETHER */
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/in.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <linux/errno.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-
-
-//#define ARLAN_DEBUGGING 1
-
-#define ARLAN_PROC_INTERFACE
-#define MAX_ARLANS 4 /* not more than 4 ! */
-#define ARLAN_PROC_SHM_DUMP /* shows all card registers, makes driver way larger */
-
-#define ARLAN_MAX_MULTICAST_ADDRS 16
-#define ARLAN_RCV_CLEAN 0
-#define ARLAN_RCV_PROMISC 1
-#define ARLAN_RCV_CONTROL 2
-
-#ifdef CONFIG_PROC_FS
-extern int init_arlan_proc(void);
-extern void cleanup_arlan_proc(void);
-#else
-#define init_arlan_proc() ({ 0; })
-#define cleanup_arlan_proc() do { } while (0)
-#endif
-
-extern struct net_device *arlan_device[MAX_ARLANS];
-extern int arlan_debug;
-extern int arlan_entry_debug;
-extern int arlan_exit_debug;
-extern int testMemory;
-extern int arlan_command(struct net_device * dev, int command);
-
-#define SIDUNKNOWN -1
-#define radioNodeIdUNKNOWN -1
-#define irqUNKNOWN 0
-#define debugUNKNOWN 0
-#define testMemoryUNKNOWN 1
-#define spreadingCodeUNKNOWN 0
-#define channelNumberUNKNOWN 0
-#define channelSetUNKNOWN 0
-#define systemIdUNKNOWN -1
-#define registrationModeUNKNOWN -1
-
-
-#define IFDEBUG( L ) if ( (L) & arlan_debug )
-#define ARLAN_FAKE_HDR_LEN 12
-
-#ifdef ARLAN_DEBUGGING
- #define DEBUG 1
- #define ARLAN_ENTRY_EXIT_DEBUGGING 1
- #define ARLAN_DEBUG(a,b) printk(KERN_DEBUG a, b)
-#else
- #define ARLAN_DEBUG(a,b)
-#endif
-
-#define ARLAN_SHMEM_SIZE 0x2000
-
-struct arlan_shmem
-{
- /* Header Signature */
- volatile char textRegion[48];
- volatile u_char resetFlag;
- volatile u_char diagnosticInfo;
- volatile u_short diagnosticOffset;
- volatile u_char _1[12];
- volatile u_char lanCardNodeId[6];
- volatile u_char broadcastAddress[6];
- volatile u_char hardwareType;
- volatile u_char majorHardwareVersion;
- volatile u_char minorHardwareVersion;
- volatile u_char radioModule;// shows EEPROM, can be overridden at 0x111
- volatile u_char defaultChannelSet; // shows EEProm, can be overriiden at 0x10A
- volatile u_char _2[47];
-
- /* Control/Status Block - 0x0080 */
- volatile u_char interruptInProgress; /* not used by lancpu */
- volatile u_char cntrlRegImage; /* not used by lancpu */
- volatile u_char _3[13];
- volatile u_char dumpByte;
- volatile u_char commandByte; /* non-zero = active */
- volatile u_char commandParameter[15];
-
- /* Receive Status - 0x00a0 */
- volatile u_char rxStatus; /* 1- data, 2-control, 0xff - registr change */
- volatile u_char rxFrmType;
- volatile u_short rxOffset;
- volatile u_short rxLength;
- volatile u_char rxSrc[6];
- volatile u_char rxBroadcastFlag;
- volatile u_char rxQuality;
- volatile u_char scrambled;
- volatile u_char _4[1];
-
- /* Transmit Status - 0x00b0 */
- volatile u_char txStatus;
- volatile u_char txAckQuality;
- volatile u_char numRetries;
- volatile u_char _5[14];
- volatile u_char registeredRouter[6];
- volatile u_char backboneRouter[6];
- volatile u_char registrationStatus;
- volatile u_char configuredStatusFlag;
- volatile u_char _6[1];
- volatile u_char ultimateDestAddress[6];
- volatile u_char immedDestAddress[6];
- volatile u_char immedSrcAddress[6];
- volatile u_short rxSequenceNumber;
- volatile u_char assignedLocaltalkAddress;
- volatile u_char _7[27];
-
- /* System Parameter Block */
-
- /* - Driver Parameters (Novell Specific) */
-
- volatile u_short txTimeout;
- volatile u_short transportTime;
- volatile u_char _8[4];
-
- /* - Configuration Parameters */
- volatile u_char irqLevel;
- volatile u_char spreadingCode;
- volatile u_char channelSet;
- volatile u_char channelNumber;
- volatile u_short radioNodeId;
- volatile u_char _9[2];
- volatile u_char scramblingDisable;
- volatile u_char radioType;
- volatile u_short routerId;
- volatile u_char _10[9];
- volatile u_char txAttenuation;
- volatile u_char systemId[4];
- volatile u_short globalChecksum;
- volatile u_char _11[4];
- volatile u_short maxDatagramSize;
- volatile u_short maxFrameSize;
- volatile u_char maxRetries;
- volatile u_char receiveMode;
- volatile u_char priority;
- volatile u_char rootOrRepeater;
- volatile u_char specifiedRouter[6];
- volatile u_short fastPollPeriod;
- volatile u_char pollDecay;
- volatile u_char fastPollDelay[2];
- volatile u_char arlThreshold;
- volatile u_char arlDecay;
- volatile u_char _12[1];
- volatile u_short specRouterTimeout;
- volatile u_char _13[5];
-
- /* Scrambled Area */
- volatile u_char SID[4];
- volatile u_char encryptionKey[12];
- volatile u_char _14[2];
- volatile u_char waitTime[2];
- volatile u_char lParameter[2];
- volatile u_char _15[3];
- volatile u_short headerSize;
- volatile u_short sectionChecksum;
-
- volatile u_char registrationMode;
- volatile u_char registrationFill;
- volatile u_short pollPeriod;
- volatile u_short refreshPeriod;
- volatile u_char name[16];
- volatile u_char NID[6];
- volatile u_char localTalkAddress;
- volatile u_char codeFormat;
- volatile u_char numChannels;
- volatile u_char channel1;
- volatile u_char channel2;
- volatile u_char channel3;
- volatile u_char channel4;
- volatile u_char SSCode[59];
-
- volatile u_char _16[0xC0];
- volatile u_short auxCmd;
- volatile u_char dumpPtr[4];
- volatile u_char dumpVal;
- volatile u_char _17[0x6A];
- volatile u_char wireTest;
- volatile u_char _18[14];
-
- /* Statistics Block - 0x0300 */
- volatile u_char hostcpuLock;
- volatile u_char lancpuLock;
- volatile u_char resetTime[18];
-
- volatile u_char numDatagramsTransmitted[4];
- volatile u_char numReTransmissions[4];
- volatile u_char numFramesDiscarded[4];
- volatile u_char numDatagramsReceived[4];
- volatile u_char numDuplicateReceivedFrames[4];
- volatile u_char numDatagramsDiscarded[4];
-
- volatile u_short maxNumReTransmitDatagram;
- volatile u_short maxNumReTransmitFrames;
- volatile u_short maxNumConsecutiveDuplicateFrames;
- /* misaligned here so we have to go to characters */
-
- volatile u_char numBytesTransmitted[4];
- volatile u_char numBytesReceived[4];
- volatile u_char numCRCErrors[4];
- volatile u_char numLengthErrors[4];
- volatile u_char numAbortErrors[4];
- volatile u_char numTXUnderruns[4];
- volatile u_char numRXOverruns[4];
- volatile u_char numHoldOffs[4];
- volatile u_char numFramesTransmitted[4];
- volatile u_char numFramesReceived[4];
- volatile u_char numReceiveFramesLost[4];
- volatile u_char numRXBufferOverflows[4];
- volatile u_char numFramesDiscardedAddrMismatch[4];
- volatile u_char numFramesDiscardedSIDMismatch[4];
- volatile u_char numPollsTransmistted[4];
- volatile u_char numPollAcknowledges[4];
- volatile u_char numStatusTimeouts[4];
- volatile u_char numNACKReceived[4];
-
- volatile u_char _19[0x86];
-
- volatile u_char txBuffer[0x800];
- volatile u_char rxBuffer[0x800];
-
- volatile u_char _20[0x800];
- volatile u_char _21[0x3fb];
- volatile u_char configStatus;
- volatile u_char _22;
- volatile u_char progIOCtrl;
- volatile u_char shareMBase;
- volatile u_char controlRegister;
-};
-
-struct arlan_conf_stru {
- int spreadingCode;
- int channelSet;
- int channelNumber;
- int scramblingDisable;
- int txAttenuation;
- int systemId;
- int maxDatagramSize;
- int maxFrameSize;
- int maxRetries;
- int receiveMode;
- int priority;
- int rootOrRepeater;
- int SID;
- int radioNodeId;
- int registrationMode;
- int registrationFill;
- int localTalkAddress;
- int codeFormat;
- int numChannels;
- int channel1;
- int channel2;
- int channel3;
- int channel4;
- int txClear;
- int txRetries;
- int txRouting;
- int txScrambled;
- int rxParameter;
- int txTimeoutMs;
- int txAckTimeoutMs;
- int waitCardTimeout;
- int waitTime;
- int lParameter;
- int _15;
- int headerSize;
- int retries;
- int tx_delay_ms;
- int waitReTransmitPacketMaxSize;
- int ReTransmitPacketMaxSize;
- int fastReTransCount;
- int driverRetransmissions;
- int registrationInterrupts;
- int hardwareType;
- int radioType;
- int writeRadioType;
- int writeEEPROM;
- char siteName[17];
- int measure_rate;
- int in_speed;
- int out_speed;
- int in_speed10;
- int out_speed10;
- int in_speed_max;
- int out_speed_max;
- int pre_Command_Wait;
- int rx_tweak1;
- int rx_tweak2;
- int tx_queue_len;
-};
-
-extern struct arlan_conf_stru arlan_conf[MAX_ARLANS];
-
-struct TxParam
-{
- volatile short offset;
- volatile short length;
- volatile u_char dest[6];
- volatile unsigned char clear;
- volatile unsigned char retries;
- volatile unsigned char routing;
- volatile unsigned char scrambled;
-};
-
-#define TX_RING_SIZE 2
-/* Information that need to be kept for each board. */
-struct arlan_private {
- struct arlan_shmem __iomem * card;
- struct arlan_shmem * conf;
-
- struct arlan_conf_stru * Conf;
- int bad;
- int reset;
- unsigned long lastReset;
- struct timer_list timer;
- struct timer_list tx_delay_timer;
- struct timer_list tx_retry_timer;
- struct timer_list rx_check_timer;
-
- int registrationLostCount;
- int reRegisterExp;
- int irq_test_done;
-
- struct TxParam txRing[TX_RING_SIZE];
- char reTransmitBuff[0x800];
- int txLast;
- unsigned ReTransmitRequested;
- unsigned long tx_done_delayed;
- unsigned long registrationLastSeen;
-
- unsigned long tx_last_sent;
- unsigned long tx_last_cleared;
- unsigned long retransmissions;
- unsigned long interrupt_ack_requested;
- spinlock_t lock;
- unsigned long waiting_command_mask;
- unsigned long card_polling_interval;
- unsigned long last_command_buff_free_time;
-
- int under_reset;
- int under_config;
- int rx_command_given;
- int tx_command_given;
- unsigned long interrupt_processing_active;
- unsigned long last_rx_int_ack_time;
- unsigned long in_bytes;
- unsigned long out_bytes;
- unsigned long in_time;
- unsigned long out_time;
- unsigned long in_time10;
- unsigned long out_time10;
- unsigned long in_bytes10;
- unsigned long out_bytes10;
- int init_etherdev_alloc;
-};
-
-
-
-#define ARLAN_CLEAR 0x00
-#define ARLAN_RESET 0x01
-#define ARLAN_CHANNEL_ATTENTION 0x02
-#define ARLAN_INTERRUPT_ENABLE 0x04
-#define ARLAN_CLEAR_INTERRUPT 0x08
-#define ARLAN_POWER 0x40
-#define ARLAN_ACCESS 0x80
-
-#define ARLAN_COM_CONF 0x01
-#define ARLAN_COM_RX_ENABLE 0x03
-#define ARLAN_COM_RX_ABORT 0x04
-#define ARLAN_COM_TX_ENABLE 0x05
-#define ARLAN_COM_TX_ABORT 0x06
-#define ARLAN_COM_NOP 0x07
-#define ARLAN_COM_STANDBY 0x08
-#define ARLAN_COM_ACTIVATE 0x09
-#define ARLAN_COM_GOTO_SLOW_POLL 0x0a
-#define ARLAN_COM_INT 0x80
-
-
-#define TXLAST(dev) (((struct arlan_private *)netdev_priv(dev))->txRing[((struct arlan_private *)netdev_priv(dev))->txLast])
-#define TXHEAD(dev) (((struct arlan_private *)netdev_priv(dev))->txRing[0])
-#define TXTAIL(dev) (((struct arlan_private *)netdev_priv(dev))->txRing[1])
-
-#define TXBuffStart(dev) offsetof(struct arlan_shmem, txBuffer)
-#define TXBuffEnd(dev) offsetof(struct arlan_shmem, xxBuffer)
-
-#define READSHM(to,from,atype) {\
- atype tmp;\
- memcpy_fromio(&(tmp),&(from),sizeof(atype));\
- to = tmp;\
- }
-
-#define READSHMEM(from,atype)\
- atype from; \
- READSHM(from, arlan->from, atype);
-
-#define WRITESHM(to,from,atype) \
- { atype tmpSHM = from;\
- memcpy_toio(&(to),&tmpSHM,sizeof(atype));\
- }
-
-#define DEBUGSHM(levelSHM,stringSHM,stuff,atype) \
- { atype tmpSHM; \
- memcpy_fromio(&tmpSHM,&(stuff),sizeof(atype));\
- IFDEBUG(levelSHM) printk(stringSHM,tmpSHM);\
- }
-
-#define WRITESHMB(to, val) \
- writeb(val,&(to))
-#define READSHMB(to) \
- readb(&(to))
-#define WRITESHMS(to, val) \
- writew(val,&(to))
-#define READSHMS(to) \
- readw(&(to))
-#define WRITESHMI(to, val) \
- writel(val,&(to))
-#define READSHMI(to) \
- readl(&(to))
-
-
-
-
-
-#define registrationBad(dev)\
- ( ( READSHMB(((struct arlan_private *)netdev_priv(dev))->card->registrationMode) > 0) && \
- ( READSHMB(((struct arlan_private *)netdev_priv(dev))->card->registrationStatus) == 0) )
-
-
-#define readControlRegister(dev)\
- READSHMB(((struct arlan_private *)netdev_priv(dev))->card->cntrlRegImage)
-
-#define writeControlRegister(dev, v){\
- WRITESHMB(((struct arlan_private *)netdev_priv(dev))->card->cntrlRegImage ,((v) &0xF) );\
- WRITESHMB(((struct arlan_private *)netdev_priv(dev))->card->controlRegister ,(v) );}
-
-
-#define arlan_interrupt_lancpu(dev) {\
- int cr; \
- \
- cr = readControlRegister(dev);\
- if (cr & ARLAN_CHANNEL_ATTENTION){ \
- writeControlRegister(dev, (cr & ~ARLAN_CHANNEL_ATTENTION));\
- }else \
- writeControlRegister(dev, (cr | ARLAN_CHANNEL_ATTENTION));\
-}
-
-#define clearChannelAttention(dev){ \
- writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_CHANNEL_ATTENTION);}
-#define setHardwareReset(dev) {\
- writeControlRegister(dev,readControlRegister(dev) | ARLAN_RESET);}
-#define clearHardwareReset(dev) {\
- writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_RESET);}
-#define setInterruptEnable(dev){\
- writeControlRegister(dev,readControlRegister(dev) | ARLAN_INTERRUPT_ENABLE) ;}
-#define clearInterruptEnable(dev){\
- writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_INTERRUPT_ENABLE) ;}
-#define setClearInterrupt(dev){\
- writeControlRegister(dev,readControlRegister(dev) | ARLAN_CLEAR_INTERRUPT) ;}
-#define clearClearInterrupt(dev){\
- writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_CLEAR_INTERRUPT);}
-#define setPowerOff(dev){\
- writeControlRegister(dev,readControlRegister(dev) | (ARLAN_POWER && ARLAN_ACCESS));\
- writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_ACCESS);}
-#define setPowerOn(dev){\
- writeControlRegister(dev,readControlRegister(dev) & ~(ARLAN_POWER)); }
-#define arlan_lock_card_access(dev){\
- writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_ACCESS);}
-#define arlan_unlock_card_access(dev){\
- writeControlRegister(dev,readControlRegister(dev) | ARLAN_ACCESS ); }
-
-
-
-
-#define ARLAN_COMMAND_RX 0x000001
-#define ARLAN_COMMAND_NOOP 0x000002
-#define ARLAN_COMMAND_NOOPINT 0x000004
-#define ARLAN_COMMAND_TX 0x000008
-#define ARLAN_COMMAND_CONF 0x000010
-#define ARLAN_COMMAND_RESET 0x000020
-#define ARLAN_COMMAND_TX_ABORT 0x000040
-#define ARLAN_COMMAND_RX_ABORT 0x000080
-#define ARLAN_COMMAND_POWERDOWN 0x000100
-#define ARLAN_COMMAND_POWERUP 0x000200
-#define ARLAN_COMMAND_SLOW_POLL 0x000400
-#define ARLAN_COMMAND_ACTIVATE 0x000800
-#define ARLAN_COMMAND_INT_ACK 0x001000
-#define ARLAN_COMMAND_INT_ENABLE 0x002000
-#define ARLAN_COMMAND_WAIT_NOW 0x004000
-#define ARLAN_COMMAND_LONG_WAIT_NOW 0x008000
-#define ARLAN_COMMAND_STANDBY 0x010000
-#define ARLAN_COMMAND_INT_RACK 0x020000
-#define ARLAN_COMMAND_INT_RENABLE 0x040000
-#define ARLAN_COMMAND_CONF_WAIT 0x080000
-#define ARLAN_COMMAND_TBUSY_CLEAR 0x100000
-#define ARLAN_COMMAND_CLEAN_AND_CONF (ARLAN_COMMAND_TX_ABORT\
- | ARLAN_COMMAND_RX_ABORT\
- | ARLAN_COMMAND_CONF)
-#define ARLAN_COMMAND_CLEAN_AND_RESET (ARLAN_COMMAND_TX_ABORT\
- | ARLAN_COMMAND_RX_ABORT\
- | ARLAN_COMMAND_RESET)
-
-
-
-#define ARLAN_DEBUG_CHAIN_LOCKS 0x00001
-#define ARLAN_DEBUG_RESET 0x00002
-#define ARLAN_DEBUG_TIMING 0x00004
-#define ARLAN_DEBUG_CARD_STATE 0x00008
-#define ARLAN_DEBUG_TX_CHAIN 0x00010
-#define ARLAN_DEBUG_MULTICAST 0x00020
-#define ARLAN_DEBUG_HEADER_DUMP 0x00040
-#define ARLAN_DEBUG_INTERRUPT 0x00080
-#define ARLAN_DEBUG_STARTUP 0x00100
-#define ARLAN_DEBUG_SHUTDOWN 0x00200
-
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index dffc820..0603cc5 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -129,5 +129,7 @@ source "drivers/staging/iio/Kconfig"
source "drivers/staging/strip/Kconfig"
+source "drivers/staging/arlan/Kconfig"
+
endif # !STAGING_EXCLUDE_BUILD
endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index e91391d..cfc16fd 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -46,3 +46,4 @@ obj-$(CONFIG_RAR_REGISTER) += rar/
obj-$(CONFIG_DX_SEP) += sep/
obj-$(CONFIG_IIO) += iio/
obj-$(CONFIG_STRIP) += strip/
+obj-$(CONFIG_ARLAN) += arlan/
diff --git a/drivers/staging/arlan/Kconfig b/drivers/staging/arlan/Kconfig
new file mode 100644
index 0000000..0585ed8
--- /dev/null
+++ b/drivers/staging/arlan/Kconfig
@@ -0,0 +1,15 @@
+config ARLAN
+ tristate "Aironet Arlan 655 & IC2200 DS support"
+ depends on ISA && !64BIT
+ select WIRELESS_EXT
+ ---help---
+ Aironet makes Arlan, a class of wireless LAN adapters. These use the
+ www.Telxon.com chip, which is also used on several similar cards.
+ This driver is tested on the 655 and IC2200 series cards. Look at
+ <http://www.ylenurme.ee/~elmer/655/> for the latest information.
+
+ The driver is built as two modules, arlan and arlan-proc. The latter
+ is the /proc interface and is not needed most of time.
+
+ On some computers the card ends up in non-valid state after some
+ time. Use a ping-reset script to clear it.
diff --git a/drivers/staging/arlan/Makefile b/drivers/staging/arlan/Makefile
new file mode 100644
index 0000000..9e58e5f
--- /dev/null
+++ b/drivers/staging/arlan/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_ARLAN) += arlan.o
+
+arlan-objs := arlan-main.o arlan-proc.o
diff --git a/drivers/staging/arlan/arlan-main.c b/drivers/staging/arlan/arlan-main.c
new file mode 100644
index 0000000..921a082
--- /dev/null
+++ b/drivers/staging/arlan/arlan-main.c
@@ -0,0 +1,1887 @@
+/*
+ * Copyright (C) 1997 Cullen Jennings
+ * Copyright (C) 1998 Elmer Joandiu, elmer@ylenurme.ee
+ * GNU General Public License applies
+ * This module provides support for the Arlan 655 card made by Aironet
+ */
+
+#include "arlan.h"
+
+#if BITS_PER_LONG != 32
+# error FIXME: this driver requires a 32-bit platform
+#endif
+
+static const char *arlan_version = "C.Jennigs 97 & Elmer.Joandi@ut.ee Oct'98, http://www.ylenurme.ee/~elmer/655/";
+
+struct net_device *arlan_device[MAX_ARLANS];
+
+static int SID = SIDUNKNOWN;
+static int radioNodeId = radioNodeIdUNKNOWN;
+static char encryptionKey[12] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'};
+int arlan_debug = debugUNKNOWN;
+static int spreadingCode = spreadingCodeUNKNOWN;
+static int channelNumber = channelNumberUNKNOWN;
+static int channelSet = channelSetUNKNOWN;
+static int systemId = systemIdUNKNOWN;
+static int registrationMode = registrationModeUNKNOWN;
+static int keyStart;
+static int tx_delay_ms;
+static int retries = 5;
+static int tx_queue_len = 1;
+static int arlan_EEPROM_bad;
+
+#ifdef ARLAN_DEBUGGING
+
+static int testMemory = testMemoryUNKNOWN;
+static int irq = irqUNKNOWN;
+static int txScrambled = 1;
+static int mdebug;
+
+module_param(irq, int, 0);
+module_param(mdebug, int, 0);
+module_param(testMemory, int, 0);
+module_param(txScrambled, int, 0);
+MODULE_PARM_DESC(irq, "(unused)");
+MODULE_PARM_DESC(testMemory, "(unused)");
+MODULE_PARM_DESC(mdebug, "Arlan multicast debugging (0-1)");
+#endif
+
+module_param_named(debug, arlan_debug, int, 0);
+module_param(spreadingCode, int, 0);
+module_param(channelNumber, int, 0);
+module_param(channelSet, int, 0);
+module_param(systemId, int, 0);
+module_param(registrationMode, int, 0);
+module_param(radioNodeId, int, 0);
+module_param(SID, int, 0);
+module_param(keyStart, int, 0);
+module_param(tx_delay_ms, int, 0);
+module_param(retries, int, 0);
+module_param(tx_queue_len, int, 0);
+module_param_named(EEPROM_bad, arlan_EEPROM_bad, int, 0);
+MODULE_PARM_DESC(debug, "Arlan debug enable (0-1)");
+MODULE_PARM_DESC(retries, "Arlan maximum packet retransmisions");
+#ifdef ARLAN_ENTRY_EXIT_DEBUGGING
+static int arlan_entry_debug;
+static int arlan_exit_debug;
+static int arlan_entry_and_exit_debug;
+module_param_named(entry_debug, arlan_entry_debug, int, 0);
+module_param_named(exit_debug, arlan_exit_debug, int, 0);
+module_param_named(entry_and_exit_debug, arlan_entry_and_exit_debug, int, 0);
+MODULE_PARM_DESC(entry_debug, "Arlan driver function entry debugging");
+MODULE_PARM_DESC(exit_debug, "Arlan driver function exit debugging");
+MODULE_PARM_DESC(entry_and_exit_debug, "Arlan driver function entry and exit debugging");
+#endif
+
+struct arlan_conf_stru arlan_conf[MAX_ARLANS];
+static int arlans_found;
+
+static int arlan_open(struct net_device *dev);
+static netdev_tx_t arlan_tx(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t arlan_interrupt(int irq, void *dev_id);
+static int arlan_close(struct net_device *dev);
+static struct net_device_stats *
+ arlan_statistics (struct net_device *dev);
+static void arlan_set_multicast (struct net_device *dev);
+static int arlan_hw_tx (struct net_device* dev, char *buf, int length );
+static int arlan_hw_config (struct net_device * dev);
+static void arlan_tx_done_interrupt (struct net_device * dev, int status);
+static void arlan_rx_interrupt (struct net_device * dev, u_char rxStatus, u_short, u_short);
+static void arlan_process_interrupt (struct net_device * dev);
+static void arlan_tx_timeout (struct net_device *dev);
+
+static inline long us2ticks(int us)
+{
+ return us * (1000000 / HZ);
+}
+
+
+#ifdef ARLAN_ENTRY_EXIT_DEBUGGING
+#define ARLAN_DEBUG_ENTRY(name) \
+ {\
+ struct timeval timev;\
+ do_gettimeofday(&timev);\
+ if (arlan_entry_debug || arlan_entry_and_exit_debug)\
+ printk("--->>>" name " %ld " "\n",((long int) timev.tv_sec * 1000000 + timev.tv_usec));\
+ }
+#define ARLAN_DEBUG_EXIT(name) \
+ {\
+ struct timeval timev;\
+ do_gettimeofday(&timev);\
+ if (arlan_exit_debug || arlan_entry_and_exit_debug)\
+ printk("<<<---" name " %ld " "\n",((long int) timev.tv_sec * 1000000 + timev.tv_usec) );\
+ }
+#else
+#define ARLAN_DEBUG_ENTRY(name)
+#define ARLAN_DEBUG_EXIT(name)
+#endif
+
+
+#define arlan_interrupt_ack(dev)\
+ clearClearInterrupt(dev);\
+ setClearInterrupt(dev);
+
+static inline int arlan_drop_tx(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+
+ dev->stats.tx_errors++;
+ if (priv->Conf->tx_delay_ms)
+ {
+ priv->tx_done_delayed = jiffies + priv->Conf->tx_delay_ms * HZ / 1000 + 1;
+ }
+ else
+ {
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_TX;
+ TXHEAD(dev).offset = 0;
+ TXTAIL(dev).offset = 0;
+ priv->txLast = 0;
+ priv->bad = 0;
+ if (!priv->under_reset && !priv->under_config)
+ netif_wake_queue (dev);
+ }
+ return 1;
+}
+
+
+int arlan_command(struct net_device *dev, int command_p)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+ struct arlan_conf_stru *conf = priv->Conf;
+ int udelayed = 0;
+ int i = 0;
+ unsigned long flags;
+
+ ARLAN_DEBUG_ENTRY("arlan_command");
+
+ if (priv->card_polling_interval)
+ priv->card_polling_interval = 1;
+
+ if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
+ printk(KERN_DEBUG "arlan_command, %lx commandByte %x waiting %lx incoming %x \n",
+ jiffies, READSHMB(arlan->commandByte),
+ priv->waiting_command_mask, command_p);
+
+ priv->waiting_command_mask |= command_p;
+
+ if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
+ if (time_after(jiffies, priv->lastReset + 5 * HZ))
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_RESET;
+
+ if (priv->waiting_command_mask & ARLAN_COMMAND_INT_ACK)
+ {
+ arlan_interrupt_ack(dev);
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_ACK;
+ }
+ if (priv->waiting_command_mask & ARLAN_COMMAND_INT_ENABLE)
+ {
+ setInterruptEnable(dev);
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_ENABLE;
+ }
+
+ /* Card access serializing lock */
+ spin_lock_irqsave(&priv->lock, flags);
+
+ /* Check cards status and waiting */
+
+ if (priv->waiting_command_mask & (ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW))
+ {
+ while (priv->waiting_command_mask & (ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW))
+ {
+ if (READSHMB(arlan->resetFlag) ||
+ READSHMB(arlan->commandByte)) /* ||
+ (readControlRegister(dev) & ARLAN_ACCESS))
+ */
+ udelay(40);
+ else
+ priv->waiting_command_mask &= ~(ARLAN_COMMAND_LONG_WAIT_NOW | ARLAN_COMMAND_WAIT_NOW);
+
+ udelayed++;
+
+ if (priv->waiting_command_mask & ARLAN_COMMAND_LONG_WAIT_NOW)
+ {
+ if (udelayed * 40 > 1000000)
+ {
+ printk(KERN_ERR "%s long wait too long \n", dev->name);
+ priv->waiting_command_mask |= ARLAN_COMMAND_RESET;
+ break;
+ }
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_WAIT_NOW)
+ {
+ if (udelayed * 40 > 1000)
+ {
+ printk(KERN_ERR "%s short wait too long \n", dev->name);
+ goto bad_end;
+ }
+ }
+ }
+ }
+ else
+ {
+ i = 0;
+ while ((READSHMB(arlan->resetFlag) ||
+ READSHMB(arlan->commandByte)) &&
+ conf->pre_Command_Wait > (i++) * 10)
+ udelay(10);
+
+
+ if ((READSHMB(arlan->resetFlag) ||
+ READSHMB(arlan->commandByte)) &&
+ !(priv->waiting_command_mask & ARLAN_COMMAND_RESET))
+ {
+ goto card_busy_end;
+ }
+ }
+ if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
+ priv->under_reset = 1;
+ if (priv->waiting_command_mask & ARLAN_COMMAND_CONF)
+ priv->under_config = 1;
+
+ /* Issuing command */
+ arlan_lock_card_access(dev);
+ if (priv->waiting_command_mask & ARLAN_COMMAND_POWERUP)
+ {
+ // if (readControlRegister(dev) & (ARLAN_ACCESS && ARLAN_POWER))
+ setPowerOn(dev);
+ arlan_interrupt_lancpu(dev);
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_POWERUP;
+ priv->waiting_command_mask |= ARLAN_COMMAND_RESET;
+ priv->card_polling_interval = HZ / 10;
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_ACTIVATE)
+ {
+ WRITESHMB(arlan->commandByte, ARLAN_COM_ACTIVATE);
+ arlan_interrupt_lancpu(dev);
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_ACTIVATE;
+ priv->card_polling_interval = HZ / 10;
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_RX_ABORT)
+ {
+ if (priv->rx_command_given)
+ {
+ WRITESHMB(arlan->commandByte, ARLAN_COM_RX_ABORT);
+ arlan_interrupt_lancpu(dev);
+ priv->rx_command_given = 0;
+ }
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_RX_ABORT;
+ priv->card_polling_interval = 1;
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_TX_ABORT)
+ {
+ if (priv->tx_command_given)
+ {
+ WRITESHMB(arlan->commandByte, ARLAN_COM_TX_ABORT);
+ arlan_interrupt_lancpu(dev);
+ priv->tx_command_given = 0;
+ }
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_TX_ABORT;
+ priv->card_polling_interval = 1;
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_RESET)
+ {
+ priv->under_reset=1;
+ netif_stop_queue (dev);
+
+ arlan_drop_tx(dev);
+ if (priv->tx_command_given || priv->rx_command_given)
+ {
+ printk(KERN_ERR "%s: Reset under tx or rx command \n", dev->name);
+ }
+ netif_stop_queue (dev);
+ if (arlan_debug & ARLAN_DEBUG_RESET)
+ printk(KERN_ERR "%s: Doing chip reset\n", dev->name);
+ priv->lastReset = jiffies;
+ WRITESHM(arlan->commandByte, 0, u_char);
+ /* hold card in reset state */
+ setHardwareReset(dev);
+ /* set reset flag and then release reset */
+ WRITESHM(arlan->resetFlag, 0xff, u_char);
+ clearChannelAttention(dev);
+ clearHardwareReset(dev);
+ priv->card_polling_interval = HZ / 4;
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_RESET;
+ priv->waiting_command_mask |= ARLAN_COMMAND_INT_RACK;
+// priv->waiting_command_mask |= ARLAN_COMMAND_INT_RENABLE;
+// priv->waiting_command_mask |= ARLAN_COMMAND_RX;
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_INT_RACK)
+ {
+ clearHardwareReset(dev);
+ clearClearInterrupt(dev);
+ setClearInterrupt(dev);
+ setInterruptEnable(dev);
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_RACK;
+ priv->waiting_command_mask |= ARLAN_COMMAND_CONF;
+ priv->under_config = 1;
+ priv->under_reset = 0;
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_INT_RENABLE)
+ {
+ setInterruptEnable(dev);
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_INT_RENABLE;
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_CONF)
+ {
+ if (priv->tx_command_given || priv->rx_command_given)
+ {
+ printk(KERN_ERR "%s: Reset under tx or rx command \n", dev->name);
+ }
+ arlan_drop_tx(dev);
+ setInterruptEnable(dev);
+ arlan_hw_config(dev);
+ arlan_interrupt_lancpu(dev);
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_CONF;
+ priv->card_polling_interval = HZ / 10;
+// priv->waiting_command_mask |= ARLAN_COMMAND_INT_RACK;
+// priv->waiting_command_mask |= ARLAN_COMMAND_INT_ENABLE;
+ priv->waiting_command_mask |= ARLAN_COMMAND_CONF_WAIT;
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_CONF_WAIT)
+ {
+ if (READSHMB(arlan->configuredStatusFlag) != 0 &&
+ READSHMB(arlan->diagnosticInfo) == 0xff)
+ {
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_CONF_WAIT;
+ priv->waiting_command_mask |= ARLAN_COMMAND_RX;
+ priv->waiting_command_mask |= ARLAN_COMMAND_TBUSY_CLEAR;
+ priv->card_polling_interval = HZ / 10;
+ priv->tx_command_given = 0;
+ priv->under_config = 0;
+ }
+ else
+ {
+ priv->card_polling_interval = 1;
+ if (arlan_debug & ARLAN_DEBUG_TIMING)
+ printk(KERN_ERR "configure delayed \n");
+ }
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_RX)
+ {
+ if (!registrationBad(dev))
+ {
+ setInterruptEnable(dev);
+ memset_io(arlan->commandParameter, 0, 0xf);
+ WRITESHMB(arlan->commandByte, ARLAN_COM_INT | ARLAN_COM_RX_ENABLE);
+ WRITESHMB(arlan->commandParameter[0], conf->rxParameter);
+ arlan_interrupt_lancpu(dev);
+ priv->rx_command_given = 0; // mnjah, bad
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_RX;
+ priv->card_polling_interval = 1;
+ }
+ else
+ priv->card_polling_interval = 2;
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_TBUSY_CLEAR)
+ {
+ if ( !registrationBad(dev) &&
+ (netif_queue_stopped(dev) || !netif_running(dev)) )
+ {
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_TBUSY_CLEAR;
+ netif_wake_queue (dev);
+ }
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_TX)
+ {
+ if (!test_and_set_bit(0, (void *) &priv->tx_command_given))
+ {
+ if (time_after(jiffies,
+ priv->tx_last_sent + us2ticks(conf->rx_tweak1))
+ || time_before(jiffies,
+ priv->last_rx_int_ack_time + us2ticks(conf->rx_tweak2)))
+ {
+ setInterruptEnable(dev);
+ memset_io(arlan->commandParameter, 0, 0xf);
+ WRITESHMB(arlan->commandByte, ARLAN_COM_TX_ENABLE | ARLAN_COM_INT);
+ memcpy_toio(arlan->commandParameter, &TXLAST(dev), 14);
+// for ( i=1 ; i < 15 ; i++) printk("%02x:",READSHMB(arlan->commandParameter[i]));
+ priv->tx_last_sent = jiffies;
+ arlan_interrupt_lancpu(dev);
+ priv->tx_command_given = 1;
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_TX;
+ priv->card_polling_interval = 1;
+ }
+ else
+ {
+ priv->tx_command_given = 0;
+ priv->card_polling_interval = 1;
+ }
+ }
+ else if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
+ printk(KERN_ERR "tx command when tx chain locked \n");
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_NOOPINT)
+ {
+ {
+ WRITESHMB(arlan->commandByte, ARLAN_COM_NOP | ARLAN_COM_INT);
+ }
+ arlan_interrupt_lancpu(dev);
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_NOOPINT;
+ priv->card_polling_interval = HZ / 3;
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_NOOP)
+ {
+ WRITESHMB(arlan->commandByte, ARLAN_COM_NOP);
+ arlan_interrupt_lancpu(dev);
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_NOOP;
+ priv->card_polling_interval = HZ / 3;
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_SLOW_POLL)
+ {
+ WRITESHMB(arlan->commandByte, ARLAN_COM_GOTO_SLOW_POLL);
+ arlan_interrupt_lancpu(dev);
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_SLOW_POLL;
+ priv->card_polling_interval = HZ / 3;
+ }
+ else if (priv->waiting_command_mask & ARLAN_COMMAND_POWERDOWN)
+ {
+ setPowerOff(dev);
+ if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
+ printk(KERN_WARNING "%s: Arlan Going Standby\n", dev->name);
+ priv->waiting_command_mask &= ~ARLAN_COMMAND_POWERDOWN;
+ priv->card_polling_interval = 3 * HZ;
+ }
+ arlan_unlock_card_access(dev);
+ for (i = 0; READSHMB(arlan->commandByte) && i < 20; i++)
+ udelay(10);
+ if (READSHMB(arlan->commandByte))
+ if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
+ printk(KERN_ERR "card busy leaving command %lx\n", priv->waiting_command_mask);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+ ARLAN_DEBUG_EXIT("arlan_command");
+ priv->last_command_buff_free_time = jiffies;
+ return 0;
+
+card_busy_end:
+ if (time_after(jiffies, priv->last_command_buff_free_time + HZ))
+ priv->waiting_command_mask |= ARLAN_COMMAND_CLEAN_AND_RESET;
+
+ if (arlan_debug & ARLAN_DEBUG_CARD_STATE)
+ printk(KERN_ERR "%s arlan_command card busy end \n", dev->name);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ ARLAN_DEBUG_EXIT("arlan_command");
+ return 1;
+
+bad_end:
+ printk(KERN_ERR "%s arlan_command bad end \n", dev->name);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+ ARLAN_DEBUG_EXIT("arlan_command");
+
+ return -1;
+}
+
+static inline void arlan_command_process(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+
+ int times = 0;
+ while (priv->waiting_command_mask && times < 8)
+ {
+ if (priv->waiting_command_mask)
+ {
+ if (arlan_command(dev, 0))
+ break;
+ times++;
+ }
+ /* if long command, we won't repeat trying */ ;
+ if (priv->card_polling_interval > 1)
+ break;
+ times++;
+ }
+}
+
+
+static inline void arlan_retransmit_now(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+
+
+ ARLAN_DEBUG_ENTRY("arlan_retransmit_now");
+ if (TXLAST(dev).offset == 0)
+ {
+ if (TXHEAD(dev).offset)
+ {
+ priv->txLast = 0;
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_DEBUG "TX buff switch to head \n");
+
+ }
+ else if (TXTAIL(dev).offset)
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_DEBUG "TX buff switch to tail \n");
+ priv->txLast = 1;
+ }
+ else
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_ERR "ReTransmit buff empty");
+ netif_wake_queue (dev);
+ return;
+
+ }
+ arlan_command(dev, ARLAN_COMMAND_TX);
+
+ priv->Conf->driverRetransmissions++;
+ priv->retransmissions++;
+
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk("Retransmit %d bytes \n", TXLAST(dev).length);
+
+ ARLAN_DEBUG_EXIT("arlan_retransmit_now");
+}
+
+
+
+static void arlan_registration_timer(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *) data;
+ struct arlan_private *priv = netdev_priv(dev);
+ int bh_mark_needed = 0;
+ int next_tick = 1;
+ long lostTime = ((long)jiffies - (long)priv->registrationLastSeen)
+ * (1000/HZ);
+
+ if (registrationBad(dev))
+ {
+ priv->registrationLostCount++;
+ if (lostTime > 7000 && lostTime < 7200)
+ {
+ printk(KERN_NOTICE "%s registration Lost \n", dev->name);
+ }
+ if (lostTime / priv->reRegisterExp > 2000)
+ arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_CONF);
+ if (lostTime / (priv->reRegisterExp) > 3500)
+ arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
+ if (priv->reRegisterExp < 400)
+ priv->reRegisterExp += 2;
+ if (lostTime > 7200)
+ {
+ next_tick = HZ;
+ arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
+ }
+ }
+ else
+ {
+ if (priv->Conf->registrationMode && lostTime > 10000 &&
+ priv->registrationLostCount)
+ {
+ printk(KERN_NOTICE "%s registration is back after %ld milliseconds\n",
+ dev->name, lostTime);
+ }
+ priv->registrationLastSeen = jiffies;
+ priv->registrationLostCount = 0;
+ priv->reRegisterExp = 1;
+ if (!netif_running(dev) )
+ netif_wake_queue(dev);
+ if (time_after(priv->tx_last_sent,priv->tx_last_cleared) &&
+ time_after(jiffies, priv->tx_last_sent * 5*HZ) ){
+ arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
+ priv->tx_last_cleared = jiffies;
+ }
+ }
+
+
+ if (!registrationBad(dev) && priv->ReTransmitRequested)
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk(KERN_ERR "Retransmit from timer \n");
+ priv->ReTransmitRequested = 0;
+ arlan_retransmit_now(dev);
+ }
+ if (!registrationBad(dev) &&
+ time_after(jiffies, priv->tx_done_delayed) &&
+ priv->tx_done_delayed != 0)
+ {
+ TXLAST(dev).offset = 0;
+ if (priv->txLast)
+ priv->txLast = 0;
+ else if (TXTAIL(dev).offset)
+ priv->txLast = 1;
+ if (TXLAST(dev).offset)
+ {
+ arlan_retransmit_now(dev);
+ dev->trans_start = jiffies;
+ }
+ if (!(TXHEAD(dev).offset && TXTAIL(dev).offset))
+ {
+ netif_wake_queue (dev);
+ }
+ priv->tx_done_delayed = 0;
+ bh_mark_needed = 1;
+ }
+ if (bh_mark_needed)
+ {
+ netif_wake_queue (dev);
+ }
+ arlan_process_interrupt(dev);
+
+ if (next_tick < priv->card_polling_interval)
+ next_tick = priv->card_polling_interval;
+
+ priv->timer.expires = jiffies + next_tick;
+
+ add_timer(&priv->timer);
+}
+
+
+#ifdef ARLAN_DEBUGGING
+
+static void arlan_print_registers(struct net_device *dev, int line)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem *arlan = priv->card;
+
+ u_char hostcpuLock, lancpuLock, controlRegister, cntrlRegImage,
+ txStatus, rxStatus, interruptInProgress, commandByte;
+
+
+ ARLAN_DEBUG_ENTRY("arlan_print_registers");
+ READSHM(interruptInProgress, arlan->interruptInProgress, u_char);
+ READSHM(hostcpuLock, arlan->hostcpuLock, u_char);
+ READSHM(lancpuLock, arlan->lancpuLock, u_char);
+ READSHM(controlRegister, arlan->controlRegister, u_char);
+ READSHM(cntrlRegImage, arlan->cntrlRegImage, u_char);
+ READSHM(txStatus, arlan->txStatus, u_char);
+ READSHM(rxStatus, arlan->rxStatus, u_char);
+ READSHM(commandByte, arlan->commandByte, u_char);
+
+ printk(KERN_WARNING "line %04d IP %02x HL %02x LL %02x CB %02x CR %02x CRI %02x TX %02x RX %02x\n",
+ line, interruptInProgress, hostcpuLock, lancpuLock, commandByte,
+ controlRegister, cntrlRegImage, txStatus, rxStatus);
+
+ ARLAN_DEBUG_EXIT("arlan_print_registers");
+}
+#endif
+
+
+static int arlan_hw_tx(struct net_device *dev, char *buf, int length)
+{
+ int i;
+
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+ struct arlan_conf_stru *conf = priv->Conf;
+
+ int tailStarts = 0x800;
+ int headEnds = 0x0;
+
+
+ ARLAN_DEBUG_ENTRY("arlan_hw_tx");
+ if (TXHEAD(dev).offset)
+ headEnds = (((TXHEAD(dev).offset + TXHEAD(dev).length - offsetof(struct arlan_shmem, txBuffer)) / 64) + 1) * 64;
+ if (TXTAIL(dev).offset)
+ tailStarts = 0x800 - (((TXTAIL(dev).offset - offsetof(struct arlan_shmem, txBuffer)) / 64) + 2) * 64;
+
+
+ if (!TXHEAD(dev).offset && length < tailStarts)
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk(KERN_ERR "TXHEAD insert, tailStart %d\n", tailStarts);
+
+ TXHEAD(dev).offset =
+ offsetof(struct arlan_shmem, txBuffer);
+ TXHEAD(dev).length = length - ARLAN_FAKE_HDR_LEN;
+ for (i = 0; i < 6; i++)
+ TXHEAD(dev).dest[i] = buf[i];
+ TXHEAD(dev).clear = conf->txClear;
+ TXHEAD(dev).retries = conf->txRetries; /* 0 is use default */
+ TXHEAD(dev).routing = conf->txRouting;
+ TXHEAD(dev).scrambled = conf->txScrambled;
+ memcpy_toio((char __iomem *)arlan + TXHEAD(dev).offset, buf + ARLAN_FAKE_HDR_LEN, TXHEAD(dev).length);
+ }
+ else if (!TXTAIL(dev).offset && length < (0x800 - headEnds))
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk(KERN_ERR "TXTAIL insert, headEnd %d\n", headEnds);
+
+ TXTAIL(dev).offset =
+ offsetof(struct arlan_shmem, txBuffer) + 0x800 - (length / 64 + 2) * 64;
+ TXTAIL(dev).length = length - ARLAN_FAKE_HDR_LEN;
+ for (i = 0; i < 6; i++)
+ TXTAIL(dev).dest[i] = buf[i];
+ TXTAIL(dev).clear = conf->txClear;
+ TXTAIL(dev).retries = conf->txRetries;
+ TXTAIL(dev).routing = conf->txRouting;
+ TXTAIL(dev).scrambled = conf->txScrambled;
+ memcpy_toio(((char __iomem *)arlan + TXTAIL(dev).offset), buf + ARLAN_FAKE_HDR_LEN, TXTAIL(dev).length);
+ }
+ else
+ {
+ netif_stop_queue (dev);
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk(KERN_ERR "TX TAIL & HEAD full, return, tailStart %d headEnd %d\n", tailStarts, headEnds);
+ return -1;
+ }
+ priv->out_bytes += length;
+ priv->out_bytes10 += length;
+ if (conf->measure_rate < 1)
+ conf->measure_rate = 1;
+ if (time_after(jiffies, priv->out_time + conf->measure_rate * HZ))
+ {
+ conf->out_speed = priv->out_bytes / conf->measure_rate;
+ priv->out_bytes = 0;
+ priv->out_time = jiffies;
+ }
+ if (time_after(jiffies, priv->out_time10 + conf->measure_rate * 10*HZ))
+ {
+ conf->out_speed10 = priv->out_bytes10 / (10 * conf->measure_rate);
+ priv->out_bytes10 = 0;
+ priv->out_time10 = jiffies;
+ }
+ if (TXHEAD(dev).offset && TXTAIL(dev).offset)
+ {
+ netif_stop_queue (dev);
+ return 0;
+ }
+ else
+ netif_start_queue (dev);
+
+
+ IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
+ printk(KERN_WARNING "%s Transmit t %2x:%2x:%2x:%2x:%2x:%2x f %2x:%2x:%2x:%2x:%2x:%2x \n", dev->name,
+ (unsigned char) buf[0], (unsigned char) buf[1], (unsigned char) buf[2], (unsigned char) buf[3],
+ (unsigned char) buf[4], (unsigned char) buf[5], (unsigned char) buf[6], (unsigned char) buf[7],
+ (unsigned char) buf[8], (unsigned char) buf[9], (unsigned char) buf[10], (unsigned char) buf[11]);
+
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk(KERN_ERR "TX command prepare for buffer %d\n", priv->txLast);
+
+ arlan_command(dev, ARLAN_COMMAND_TX);
+
+ priv->tx_last_sent = jiffies;
+
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN) printk("%s TX Qued %d bytes \n", dev->name, length);
+
+ ARLAN_DEBUG_EXIT("arlan_hw_tx");
+
+ return 0;
+}
+
+
+static int arlan_hw_config(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+ struct arlan_conf_stru *conf = priv->Conf;
+
+ ARLAN_DEBUG_ENTRY("arlan_hw_config");
+
+ printk(KERN_NOTICE "%s arlan configure called \n", dev->name);
+ if (arlan_EEPROM_bad)
+ printk(KERN_NOTICE "arlan configure with eeprom bad option \n");
+
+
+ WRITESHM(arlan->spreadingCode, conf->spreadingCode, u_char);
+ WRITESHM(arlan->channelSet, conf->channelSet, u_char);
+
+ if (arlan_EEPROM_bad)
+ WRITESHM(arlan->defaultChannelSet, conf->channelSet, u_char);
+
+ WRITESHM(arlan->channelNumber, conf->channelNumber, u_char);
+
+ WRITESHM(arlan->scramblingDisable, conf->scramblingDisable, u_char);
+ WRITESHM(arlan->txAttenuation, conf->txAttenuation, u_char);
+
+ WRITESHM(arlan->systemId, conf->systemId, u_int);
+
+ WRITESHM(arlan->maxRetries, conf->maxRetries, u_char);
+ WRITESHM(arlan->receiveMode, conf->receiveMode, u_char);
+ WRITESHM(arlan->priority, conf->priority, u_char);
+ WRITESHM(arlan->rootOrRepeater, conf->rootOrRepeater, u_char);
+ WRITESHM(arlan->SID, conf->SID, u_int);
+
+ WRITESHM(arlan->registrationMode, conf->registrationMode, u_char);
+
+ WRITESHM(arlan->registrationFill, conf->registrationFill, u_char);
+ WRITESHM(arlan->localTalkAddress, conf->localTalkAddress, u_char);
+ WRITESHM(arlan->codeFormat, conf->codeFormat, u_char);
+ WRITESHM(arlan->numChannels, conf->numChannels, u_char);
+ WRITESHM(arlan->channel1, conf->channel1, u_char);
+ WRITESHM(arlan->channel2, conf->channel2, u_char);
+ WRITESHM(arlan->channel3, conf->channel3, u_char);
+ WRITESHM(arlan->channel4, conf->channel4, u_char);
+ WRITESHM(arlan->radioNodeId, conf->radioNodeId, u_short);
+ WRITESHM(arlan->SID, conf->SID, u_int);
+ WRITESHM(arlan->waitTime, conf->waitTime, u_short);
+ WRITESHM(arlan->lParameter, conf->lParameter, u_short);
+ memcpy_toio(&(arlan->_15), &(conf->_15), 3);
+ WRITESHM(arlan->_15, conf->_15, u_short);
+ WRITESHM(arlan->headerSize, conf->headerSize, u_short);
+ if (arlan_EEPROM_bad)
+ WRITESHM(arlan->hardwareType, conf->hardwareType, u_char);
+ WRITESHM(arlan->radioType, conf->radioType, u_char);
+ if (arlan_EEPROM_bad)
+ WRITESHM(arlan->radioModule, conf->radioType, u_char);
+
+ memcpy_toio(arlan->encryptionKey + keyStart, encryptionKey, 8);
+ memcpy_toio(arlan->name, conf->siteName, 16);
+
+ WRITESHMB(arlan->commandByte, ARLAN_COM_INT | ARLAN_COM_CONF); /* do configure */
+ memset_io(arlan->commandParameter, 0, 0xf); /* 0xf */
+ memset_io(arlan->commandParameter + 1, 0, 2);
+ if (conf->writeEEPROM)
+ {
+ memset_io(arlan->commandParameter, conf->writeEEPROM, 1);
+// conf->writeEEPROM=0;
+ }
+ if (conf->registrationMode && conf->registrationInterrupts)
+ memset_io(arlan->commandParameter + 3, 1, 1);
+ else
+ memset_io(arlan->commandParameter + 3, 0, 1);
+
+ priv->irq_test_done = 0;
+
+ if (conf->tx_queue_len)
+ dev->tx_queue_len = conf->tx_queue_len;
+ udelay(100);
+
+ ARLAN_DEBUG_EXIT("arlan_hw_config");
+ return 0;
+}
+
+
+static int arlan_read_card_configuration(struct net_device *dev)
+{
+ u_char tlx415;
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+ struct arlan_conf_stru *conf = priv->Conf;
+
+ ARLAN_DEBUG_ENTRY("arlan_read_card_configuration");
+
+ if (radioNodeId == radioNodeIdUNKNOWN)
+ {
+ READSHM(conf->radioNodeId, arlan->radioNodeId, u_short);
+ }
+ else
+ conf->radioNodeId = radioNodeId;
+
+ if (SID == SIDUNKNOWN)
+ {
+ READSHM(conf->SID, arlan->SID, u_int);
+ }
+ else conf->SID = SID;
+
+ if (spreadingCode == spreadingCodeUNKNOWN)
+ {
+ READSHM(conf->spreadingCode, arlan->spreadingCode, u_char);
+ }
+ else
+ conf->spreadingCode = spreadingCode;
+
+ if (channelSet == channelSetUNKNOWN)
+ {
+ READSHM(conf->channelSet, arlan->channelSet, u_char);
+ }
+ else conf->channelSet = channelSet;
+
+ if (channelNumber == channelNumberUNKNOWN)
+ {
+ READSHM(conf->channelNumber, arlan->channelNumber, u_char);
+ }
+ else conf->channelNumber = channelNumber;
+
+ READSHM(conf->scramblingDisable, arlan->scramblingDisable, u_char);
+ READSHM(conf->txAttenuation, arlan->txAttenuation, u_char);
+
+ if (systemId == systemIdUNKNOWN)
+ {
+ READSHM(conf->systemId, arlan->systemId, u_int);
+ }
+ else conf->systemId = systemId;
+
+ READSHM(conf->maxDatagramSize, arlan->maxDatagramSize, u_short);
+ READSHM(conf->maxFrameSize, arlan->maxFrameSize, u_short);
+ READSHM(conf->maxRetries, arlan->maxRetries, u_char);
+ READSHM(conf->receiveMode, arlan->receiveMode, u_char);
+ READSHM(conf->priority, arlan->priority, u_char);
+ READSHM(conf->rootOrRepeater, arlan->rootOrRepeater, u_char);
+
+ if (SID == SIDUNKNOWN)
+ {
+ READSHM(conf->SID, arlan->SID, u_int);
+ }
+ else conf->SID = SID;
+
+ if (registrationMode == registrationModeUNKNOWN)
+ {
+ READSHM(conf->registrationMode, arlan->registrationMode, u_char);
+ }
+ else conf->registrationMode = registrationMode;
+
+ READSHM(conf->registrationFill, arlan->registrationFill, u_char);
+ READSHM(conf->localTalkAddress, arlan->localTalkAddress, u_char);
+ READSHM(conf->codeFormat, arlan->codeFormat, u_char);
+ READSHM(conf->numChannels, arlan->numChannels, u_char);
+ READSHM(conf->channel1, arlan->channel1, u_char);
+ READSHM(conf->channel2, arlan->channel2, u_char);
+ READSHM(conf->channel3, arlan->channel3, u_char);
+ READSHM(conf->channel4, arlan->channel4, u_char);
+ READSHM(conf->waitTime, arlan->waitTime, u_short);
+ READSHM(conf->lParameter, arlan->lParameter, u_short);
+ READSHM(conf->_15, arlan->_15, u_short);
+ READSHM(conf->headerSize, arlan->headerSize, u_short);
+ READSHM(conf->hardwareType, arlan->hardwareType, u_char);
+ READSHM(conf->radioType, arlan->radioModule, u_char);
+
+ if (conf->radioType == 0)
+ conf->radioType = 0xc;
+
+ WRITESHM(arlan->configStatus, 0xA5, u_char);
+ READSHM(tlx415, arlan->configStatus, u_char);
+
+ if (tlx415 != 0xA5)
+ printk(KERN_INFO "%s tlx415 chip \n", dev->name);
+
+ conf->txClear = 0;
+ conf->txRetries = 1;
+ conf->txRouting = 1;
+ conf->txScrambled = 0;
+ conf->rxParameter = 1;
+ conf->txTimeoutMs = 4000;
+ conf->waitCardTimeout = 100000;
+ conf->receiveMode = ARLAN_RCV_CLEAN;
+ memcpy_fromio(conf->siteName, arlan->name, 16);
+ conf->siteName[16] = '\0';
+ conf->retries = retries;
+ conf->tx_delay_ms = tx_delay_ms;
+ conf->ReTransmitPacketMaxSize = 200;
+ conf->waitReTransmitPacketMaxSize = 200;
+ conf->txAckTimeoutMs = 900;
+ conf->fastReTransCount = 3;
+
+ ARLAN_DEBUG_EXIT("arlan_read_card_configuration");
+
+ return 0;
+}
+
+
+static int lastFoundAt = 0xbe000;
+
+
+/*
+ * This is the real probe routine. Linux has a history of friendly device
+ * probes on the ISA bus. A good device probes avoids doing writes, and
+ * verifies that the correct device exists and functions.
+ */
+#define ARLAN_SHMEM_SIZE 0x2000
+static int __init arlan_check_fingerprint(unsigned long memaddr)
+{
+ static const char probeText[] = "TELESYSTEM SLW INC. ARLAN \0";
+ volatile struct arlan_shmem __iomem *arlan = (struct arlan_shmem *) memaddr;
+ unsigned long paddr = virt_to_phys((void *) memaddr);
+ char tempBuf[49];
+
+ ARLAN_DEBUG_ENTRY("arlan_check_fingerprint");
+
+ if (!request_mem_region(paddr, ARLAN_SHMEM_SIZE, "arlan")) {
+ // printk(KERN_WARNING "arlan: memory region %lx excluded from probing \n",paddr);
+ return -ENODEV;
+ }
+
+ memcpy_fromio(tempBuf, arlan->textRegion, 29);
+ tempBuf[30] = 0;
+
+ /* check for card at this address */
+ if (0 != strncmp(tempBuf, probeText, 29)){
+ release_mem_region(paddr, ARLAN_SHMEM_SIZE);
+ return -ENODEV;
+ }
+
+// printk(KERN_INFO "arlan found at 0x%x \n",memaddr);
+ ARLAN_DEBUG_EXIT("arlan_check_fingerprint");
+
+ return 0;
+}
+
+static int arlan_change_mtu(struct net_device *dev, int new_mtu)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+ struct arlan_conf_stru *conf = priv->Conf;
+
+ ARLAN_DEBUG_ENTRY("arlan_change_mtu");
+ if (new_mtu > 2032)
+ return -EINVAL;
+ dev->mtu = new_mtu;
+ if (new_mtu < 256)
+ new_mtu = 256; /* cards book suggests 1600 */
+ conf->maxDatagramSize = new_mtu;
+ conf->maxFrameSize = new_mtu + 48;
+
+ arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_CONF);
+ printk(KERN_NOTICE "%s mtu changed to %d \n", dev->name, new_mtu);
+
+ ARLAN_DEBUG_EXIT("arlan_change_mtu");
+
+ return 0;
+}
+
+static int arlan_mac_addr(struct net_device *dev, void *p)
+{
+ struct sockaddr *addr = p;
+
+
+ ARLAN_DEBUG_ENTRY("arlan_mac_addr");
+ return -EINVAL;
+
+ if (netif_running(dev))
+ return -EBUSY;
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+ ARLAN_DEBUG_EXIT("arlan_mac_addr");
+ return 0;
+}
+
+static const struct net_device_ops arlan_netdev_ops = {
+ .ndo_open = arlan_open,
+ .ndo_stop = arlan_close,
+ .ndo_start_xmit = arlan_tx,
+ .ndo_get_stats = arlan_statistics,
+ .ndo_set_multicast_list = arlan_set_multicast,
+ .ndo_change_mtu = arlan_change_mtu,
+ .ndo_set_mac_address = arlan_mac_addr,
+ .ndo_tx_timeout = arlan_tx_timeout,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+static int __init arlan_setup_device(struct net_device *dev, int num)
+{
+ struct arlan_private *ap = netdev_priv(dev);
+ int err;
+
+ ARLAN_DEBUG_ENTRY("arlan_setup_device");
+
+ ap->conf = (struct arlan_shmem *)(ap+1);
+
+ dev->tx_queue_len = tx_queue_len;
+ dev->netdev_ops = &arlan_netdev_ops;
+ dev->watchdog_timeo = 3*HZ;
+
+ ap->irq_test_done = 0;
+ ap->Conf = &arlan_conf[num];
+
+ ap->Conf->pre_Command_Wait = 40;
+ ap->Conf->rx_tweak1 = 30;
+ ap->Conf->rx_tweak2 = 0;
+
+
+ err = register_netdev(dev);
+ if (err) {
+ release_mem_region(virt_to_phys((void *) dev->mem_start),
+ ARLAN_SHMEM_SIZE);
+ free_netdev(dev);
+ return err;
+ }
+ arlan_device[num] = dev;
+ ARLAN_DEBUG_EXIT("arlan_setup_device");
+ return 0;
+}
+
+static int __init arlan_probe_here(struct net_device *dev,
+ unsigned long memaddr)
+{
+ struct arlan_private *ap = netdev_priv(dev);
+
+ ARLAN_DEBUG_ENTRY("arlan_probe_here");
+
+ if (arlan_check_fingerprint(memaddr))
+ return -ENODEV;
+
+ printk(KERN_NOTICE "%s: Arlan found at %llx, \n ", dev->name,
+ (u64) virt_to_phys((void*)memaddr));
+
+ ap->card = (void *) memaddr;
+ dev->mem_start = memaddr;
+ dev->mem_end = memaddr + ARLAN_SHMEM_SIZE-1;
+
+ if (dev->irq < 2)
+ {
+ READSHM(dev->irq, ap->card->irqLevel, u_char);
+ } else if (dev->irq == 2)
+ dev->irq = 9;
+
+ arlan_read_card_configuration(dev);
+
+ ARLAN_DEBUG_EXIT("arlan_probe_here");
+ return 0;
+}
+
+
+static int arlan_open(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+ int ret = 0;
+
+ ARLAN_DEBUG_ENTRY("arlan_open");
+
+ ret = request_irq(dev->irq, &arlan_interrupt, 0, dev->name, dev);
+ if (ret)
+ {
+ printk(KERN_ERR "%s: unable to get IRQ %d .\n",
+ dev->name, dev->irq);
+ return ret;
+ }
+
+
+ priv->bad = 0;
+ priv->lastReset = 0;
+ priv->reset = 0;
+ memcpy_fromio(dev->dev_addr, arlan->lanCardNodeId, 6);
+ memset(dev->broadcast, 0xff, 6);
+ dev->tx_queue_len = tx_queue_len;
+ priv->interrupt_processing_active = 0;
+ spin_lock_init(&priv->lock);
+
+ netif_start_queue (dev);
+
+ priv->registrationLostCount = 0;
+ priv->registrationLastSeen = jiffies;
+ priv->txLast = 0;
+ priv->tx_command_given = 0;
+ priv->rx_command_given = 0;
+
+ priv->reRegisterExp = 1;
+ priv->tx_last_sent = jiffies - 1;
+ priv->tx_last_cleared = jiffies;
+ priv->Conf->writeEEPROM = 0;
+ priv->Conf->registrationInterrupts = 1;
+
+ init_timer(&priv->timer);
+ priv->timer.expires = jiffies + HZ / 10;
+ priv->timer.data = (unsigned long) dev;
+ priv->timer.function = &arlan_registration_timer; /* timer handler */
+
+ arlan_command(dev, ARLAN_COMMAND_POWERUP | ARLAN_COMMAND_LONG_WAIT_NOW);
+ mdelay(200);
+ add_timer(&priv->timer);
+
+ ARLAN_DEBUG_EXIT("arlan_open");
+ return 0;
+}
+
+
+static void arlan_tx_timeout (struct net_device *dev)
+{
+ printk(KERN_ERR "%s: arlan transmit timed out, kernel decided\n", dev->name);
+ /* Try to restart the adaptor. */
+ arlan_command(dev, ARLAN_COMMAND_CLEAN_AND_RESET);
+ // dev->trans_start = jiffies;
+ // netif_start_queue (dev);
+}
+
+
+static netdev_tx_t arlan_tx(struct sk_buff *skb, struct net_device *dev)
+{
+ short length;
+ unsigned char *buf;
+
+ ARLAN_DEBUG_ENTRY("arlan_tx");
+
+ length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
+ buf = skb->data;
+
+ if (length + 0x12 > 0x800) {
+ printk(KERN_ERR "TX RING overflow \n");
+ netif_stop_queue (dev);
+ }
+
+ if (arlan_hw_tx(dev, buf, length) == -1)
+ goto bad_end;
+
+ dev->trans_start = jiffies;
+
+ dev_kfree_skb(skb);
+
+ arlan_process_interrupt(dev);
+ ARLAN_DEBUG_EXIT("arlan_tx");
+ return NETDEV_TX_OK;
+
+bad_end:
+ arlan_process_interrupt(dev);
+ netif_stop_queue (dev);
+ ARLAN_DEBUG_EXIT("arlan_tx");
+ return NETDEV_TX_BUSY;
+}
+
+
+static inline int DoNotReTransmitCrap(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+
+ if (TXLAST(dev).length < priv->Conf->ReTransmitPacketMaxSize)
+ return 1;
+ return 0;
+
+}
+
+static inline int DoNotWaitReTransmitCrap(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+
+ if (TXLAST(dev).length < priv->Conf->waitReTransmitPacketMaxSize)
+ return 1;
+ return 0;
+}
+
+static inline void arlan_queue_retransmit(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+
+ ARLAN_DEBUG_ENTRY("arlan_queue_retransmit");
+
+ if (DoNotWaitReTransmitCrap(dev))
+ {
+ arlan_drop_tx(dev);
+ } else
+ priv->ReTransmitRequested++;
+
+ ARLAN_DEBUG_EXIT("arlan_queue_retransmit");
+}
+
+static inline void RetryOrFail(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+
+ ARLAN_DEBUG_ENTRY("RetryOrFail");
+
+ if (priv->retransmissions > priv->Conf->retries ||
+ DoNotReTransmitCrap(dev))
+ {
+ arlan_drop_tx(dev);
+ }
+ else if (priv->bad <= priv->Conf->fastReTransCount)
+ {
+ arlan_retransmit_now(dev);
+ }
+ else arlan_queue_retransmit(dev);
+
+ ARLAN_DEBUG_EXIT("RetryOrFail");
+}
+
+
+static void arlan_tx_done_interrupt(struct net_device *dev, int status)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+
+ ARLAN_DEBUG_ENTRY("arlan_tx_done_interrupt");
+
+ priv->tx_last_cleared = jiffies;
+ priv->tx_command_given = 0;
+ switch (status)
+ {
+ case 1:
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk("arlan intr: transmit OK\n");
+ dev->stats.tx_packets++;
+ priv->bad = 0;
+ priv->reset = 0;
+ priv->retransmissions = 0;
+ if (priv->Conf->tx_delay_ms)
+ {
+ priv->tx_done_delayed = jiffies + (priv->Conf->tx_delay_ms * HZ) / 1000 + 1;
+ }
+ else
+ {
+ TXLAST(dev).offset = 0;
+ if (priv->txLast)
+ priv->txLast = 0;
+ else if (TXTAIL(dev).offset)
+ priv->txLast = 1;
+ if (TXLAST(dev).offset)
+ {
+ arlan_retransmit_now(dev);
+ dev->trans_start = jiffies;
+ }
+ if (!TXHEAD(dev).offset || !TXTAIL(dev).offset)
+ {
+ netif_wake_queue (dev);
+ }
+ }
+ }
+ break;
+
+ case 2:
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk("arlan intr: transmit timed out\n");
+ priv->bad += 1;
+ //arlan_queue_retransmit(dev);
+ RetryOrFail(dev);
+ }
+ break;
+
+ case 3:
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk("arlan intr: transmit max retries\n");
+ priv->bad += 1;
+ priv->reset = 0;
+ //arlan_queue_retransmit(dev);
+ RetryOrFail(dev);
+ }
+ break;
+
+ case 4:
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk("arlan intr: transmit aborted\n");
+ priv->bad += 1;
+ arlan_queue_retransmit(dev);
+ //RetryOrFail(dev);
+ }
+ break;
+
+ case 5:
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk("arlan intr: transmit not registered\n");
+ priv->bad += 1;
+ //debug=101;
+ arlan_queue_retransmit(dev);
+ }
+ break;
+
+ case 6:
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk("arlan intr: transmit destination full\n");
+ priv->bad += 1;
+ priv->reset = 0;
+ //arlan_drop_tx(dev);
+ arlan_queue_retransmit(dev);
+ }
+ break;
+
+ case 7:
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk("arlan intr: transmit unknown ack\n");
+ priv->bad += 1;
+ priv->reset = 0;
+ arlan_queue_retransmit(dev);
+ }
+ break;
+
+ case 8:
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk("arlan intr: transmit dest mail box full\n");
+ priv->bad += 1;
+ priv->reset = 0;
+ //arlan_drop_tx(dev);
+ arlan_queue_retransmit(dev);
+ }
+ break;
+
+ case 9:
+ {
+ IFDEBUG(ARLAN_DEBUG_TX_CHAIN)
+ printk("arlan intr: transmit root dest not reg.\n");
+ priv->bad += 1;
+ priv->reset = 1;
+ //arlan_drop_tx(dev);
+ arlan_queue_retransmit(dev);
+ }
+ break;
+
+ default:
+ {
+ printk(KERN_ERR "arlan intr: transmit status unknown\n");
+ priv->bad += 1;
+ priv->reset = 1;
+ arlan_drop_tx(dev);
+ }
+ }
+
+ ARLAN_DEBUG_EXIT("arlan_tx_done_interrupt");
+}
+
+
+static void arlan_rx_interrupt(struct net_device *dev, u_char rxStatus, u_short rxOffset, u_short pkt_len)
+{
+ char *skbtmp;
+ int i = 0;
+
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+ struct arlan_conf_stru *conf = priv->Conf;
+
+
+ ARLAN_DEBUG_ENTRY("arlan_rx_interrupt");
+ // by spec, not WRITESHMB(arlan->rxStatus,0x00);
+ // prohibited here arlan_command(dev, ARLAN_COMMAND_RX);
+
+ if (pkt_len < 10 || pkt_len > 2048)
+ {
+ printk(KERN_WARNING "%s: got too short or long packet, len %d \n", dev->name, pkt_len);
+ return;
+ }
+ if (rxOffset + pkt_len > 0x2000)
+ {
+ printk("%s: got too long packet, len %d offset %x\n", dev->name, pkt_len, rxOffset);
+ return;
+ }
+ priv->in_bytes += pkt_len;
+ priv->in_bytes10 += pkt_len;
+ if (conf->measure_rate < 1)
+ conf->measure_rate = 1;
+ if (time_after(jiffies, priv->in_time + conf->measure_rate * HZ))
+ {
+ conf->in_speed = priv->in_bytes / conf->measure_rate;
+ priv->in_bytes = 0;
+ priv->in_time = jiffies;
+ }
+ if (time_after(jiffies, priv->in_time10 + conf->measure_rate * 10*HZ))
+ {
+ conf->in_speed10 = priv->in_bytes10 / (10 * conf->measure_rate);
+ priv->in_bytes10 = 0;
+ priv->in_time10 = jiffies;
+ }
+ DEBUGSHM(1, "arlan rcv pkt rxStatus= %d ", arlan->rxStatus, u_char);
+ switch (rxStatus)
+ {
+ case 1:
+ case 2:
+ case 3:
+ {
+ /* Malloc up new buffer. */
+ struct sk_buff *skb;
+
+ DEBUGSHM(50, "arlan recv pkt offs=%d\n", arlan->rxOffset, u_short);
+ DEBUGSHM(1, "arlan rxFrmType = %d \n", arlan->rxFrmType, u_char);
+ DEBUGSHM(1, KERN_INFO "arlan rx scrambled = %d \n", arlan->scrambled, u_char);
+
+ /* here we do multicast filtering to avoid slow 8-bit memcopy */
+#ifdef ARLAN_MULTICAST
+ if (!(dev->flags & IFF_ALLMULTI) &&
+ !(dev->flags & IFF_PROMISC) &&
+ dev->mc_list)
+ {
+ char hw_dst_addr[6];
+ struct dev_mc_list *dmi = dev->mc_list;
+ int i;
+
+ memcpy_fromio(hw_dst_addr, arlan->ultimateDestAddress, 6);
+ if (hw_dst_addr[0] == 0x01)
+ {
+ if (mdebug)
+ if (hw_dst_addr[1] == 0x00)
+ printk(KERN_ERR "%s mcast 0x0100 \n", dev->name);
+ else if (hw_dst_addr[1] == 0x40)
+ printk(KERN_ERR "%s m/bcast 0x0140 \n", dev->name);
+ while (dmi)
+ {
+ if (dmi->dmi_addrlen == 6) {
+ if (arlan_debug & ARLAN_DEBUG_HEADER_DUMP)
+ printk(KERN_ERR "%s mcl %pM\n",
+ dev->name, dmi->dmi_addr);
+ for (i = 0; i < 6; i++)
+ if (dmi->dmi_addr[i] != hw_dst_addr[i])
+ break;
+ if (i == 6)
+ break;
+ } else
+ printk(KERN_ERR "%s: invalid multicast address length given.\n", dev->name);
+ dmi = dmi->next;
+ }
+ /* we reach here if multicast filtering is on and packet
+ * is multicast and not for receive */
+ goto end_of_interrupt;
+ }
+ }
+#endif // ARLAN_MULTICAST
+ /* multicast filtering ends here */
+ pkt_len += ARLAN_FAKE_HDR_LEN;
+
+ skb = dev_alloc_skb(pkt_len + 4);
+ if (skb == NULL)
+ {
+ printk(KERN_ERR "%s: Memory squeeze, dropping packet.\n", dev->name);
+ dev->stats.rx_dropped++;
+ break;
+ }
+ skb_reserve(skb, 2);
+ skbtmp = skb_put(skb, pkt_len);
+
+ memcpy_fromio(skbtmp + ARLAN_FAKE_HDR_LEN, ((char __iomem *) arlan) + rxOffset, pkt_len - ARLAN_FAKE_HDR_LEN);
+ memcpy_fromio(skbtmp, arlan->ultimateDestAddress, 6);
+ memcpy_fromio(skbtmp + 6, arlan->rxSrc, 6);
+ WRITESHMB(arlan->rxStatus, 0x00);
+ arlan_command(dev, ARLAN_COMMAND_RX);
+
+ IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
+ {
+ char immedDestAddress[6];
+ char immedSrcAddress[6];
+ memcpy_fromio(immedDestAddress, arlan->immedDestAddress, 6);
+ memcpy_fromio(immedSrcAddress, arlan->immedSrcAddress, 6);
+
+ printk(KERN_WARNING "%s t %pM f %pM imd %pM ims %pM\n",
+ dev->name, skbtmp,
+ &skbtmp[6],
+ immedDestAddress,
+ immedSrcAddress);
+ }
+ skb->protocol = eth_type_trans(skb, dev);
+ IFDEBUG(ARLAN_DEBUG_HEADER_DUMP)
+ if (skb->protocol != 0x608 && skb->protocol != 0x8)
+ {
+ for (i = 0; i <= 22; i++)
+ printk("%02x:", (u_char) skbtmp[i + 12]);
+ printk(KERN_ERR "\n");
+ printk(KERN_WARNING "arlan kernel pkt type trans %x \n", skb->protocol);
+ }
+ netif_rx(skb);
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += pkt_len;
+ }
+ break;
+
+ default:
+ printk(KERN_ERR "arlan intr: received unknown status\n");
+ dev->stats.rx_crc_errors++;
+ break;
+ }
+ ARLAN_DEBUG_EXIT("arlan_rx_interrupt");
+}
+
+static void arlan_process_interrupt(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+ u_char rxStatus = READSHMB(arlan->rxStatus);
+ u_char txStatus = READSHMB(arlan->txStatus);
+ u_short rxOffset = READSHMS(arlan->rxOffset);
+ u_short pkt_len = READSHMS(arlan->rxLength);
+ int interrupt_count = 0;
+
+ ARLAN_DEBUG_ENTRY("arlan_process_interrupt");
+
+ if (test_and_set_bit(0, (void *) &priv->interrupt_processing_active))
+ {
+ if (arlan_debug & ARLAN_DEBUG_CHAIN_LOCKS)
+ printk(KERN_ERR "interrupt chain reentering \n");
+ goto end_int_process;
+ }
+ while ((rxStatus || txStatus || priv->interrupt_ack_requested)
+ && (interrupt_count < 5))
+ {
+ if (rxStatus)
+ priv->last_rx_int_ack_time = jiffies;
+
+ arlan_command(dev, ARLAN_COMMAND_INT_ACK);
+ arlan_command(dev, ARLAN_COMMAND_INT_ENABLE);
+
+ IFDEBUG(ARLAN_DEBUG_INTERRUPT)
+ printk(KERN_ERR "%s: got IRQ rx %x tx %x comm %x rxOff %x rxLen %x \n",
+ dev->name, rxStatus, txStatus, READSHMB(arlan->commandByte),
+ rxOffset, pkt_len);
+
+ if (rxStatus == 0 && txStatus == 0)
+ {
+ if (priv->irq_test_done)
+ {
+ if (!registrationBad(dev))
+ IFDEBUG(ARLAN_DEBUG_INTERRUPT) printk(KERN_ERR "%s unknown interrupt(nop? regLost ?) reason tx %d rx %d ",
+ dev->name, txStatus, rxStatus);
+ } else {
+ IFDEBUG(ARLAN_DEBUG_INTERRUPT)
+ printk(KERN_INFO "%s irq $%d test OK \n", dev->name, dev->irq);
+
+ }
+ priv->interrupt_ack_requested = 0;
+ goto ends;
+ }
+ if (txStatus != 0)
+ {
+ WRITESHMB(arlan->txStatus, 0x00);
+ arlan_tx_done_interrupt(dev, txStatus);
+ goto ends;
+ }
+ if (rxStatus == 1 || rxStatus == 2)
+ { /* a packet waiting */
+ arlan_rx_interrupt(dev, rxStatus, rxOffset, pkt_len);
+ goto ends;
+ }
+ if (rxStatus > 2 && rxStatus < 0xff)
+ {
+ WRITESHMB(arlan->rxStatus, 0x00);
+ printk(KERN_ERR "%s unknown rxStatus reason tx %d rx %d ",
+ dev->name, txStatus, rxStatus);
+ goto ends;
+ }
+ if (rxStatus == 0xff)
+ {
+ WRITESHMB(arlan->rxStatus, 0x00);
+ arlan_command(dev, ARLAN_COMMAND_RX);
+ if (registrationBad(dev))
+ netif_device_detach(dev);
+ if (!registrationBad(dev))
+ {
+ priv->registrationLastSeen = jiffies;
+ if (!netif_queue_stopped(dev) && !priv->under_reset && !priv->under_config)
+ netif_wake_queue (dev);
+ }
+ goto ends;
+ }
+ends:
+
+ arlan_command_process(dev);
+
+ rxStatus = READSHMB(arlan->rxStatus);
+ txStatus = READSHMB(arlan->txStatus);
+ rxOffset = READSHMS(arlan->rxOffset);
+ pkt_len = READSHMS(arlan->rxLength);
+
+
+ priv->irq_test_done = 1;
+
+ interrupt_count++;
+ }
+ priv->interrupt_processing_active = 0;
+
+end_int_process:
+ arlan_command_process(dev);
+
+ ARLAN_DEBUG_EXIT("arlan_process_interrupt");
+ return;
+}
+
+static irqreturn_t arlan_interrupt(int irq, void *dev_id)
+{
+ struct net_device *dev = dev_id;
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+ u_char rxStatus = READSHMB(arlan->rxStatus);
+ u_char txStatus = READSHMB(arlan->txStatus);
+
+ ARLAN_DEBUG_ENTRY("arlan_interrupt");
+
+
+ if (!rxStatus && !txStatus)
+ priv->interrupt_ack_requested++;
+
+ arlan_process_interrupt(dev);
+
+ priv->irq_test_done = 1;
+
+ ARLAN_DEBUG_EXIT("arlan_interrupt");
+ return IRQ_HANDLED;
+
+}
+
+
+static int arlan_close(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+
+ ARLAN_DEBUG_ENTRY("arlan_close");
+
+ del_timer_sync(&priv->timer);
+
+ arlan_command(dev, ARLAN_COMMAND_POWERDOWN);
+
+ IFDEBUG(ARLAN_DEBUG_STARTUP)
+ printk(KERN_NOTICE "%s: Closing device\n", dev->name);
+
+ netif_stop_queue(dev);
+ free_irq(dev->irq, dev);
+
+ ARLAN_DEBUG_EXIT("arlan_close");
+ return 0;
+}
+
+#ifdef ARLAN_DEBUGGING
+static long alignLong(volatile u_char * ptr)
+{
+ long ret;
+ memcpy_fromio(&ret, (void *) ptr, 4);
+ return ret;
+}
+#endif
+
+/*
+ * Get the current statistics.
+ * This may be called with the card open or closed.
+ */
+
+static struct net_device_stats *arlan_statistics(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+
+
+ ARLAN_DEBUG_ENTRY("arlan_statistics");
+
+ /* Update the statistics from the device registers. */
+
+ READSHM(dev->stats.collisions, arlan->numReTransmissions, u_int);
+ READSHM(dev->stats.rx_crc_errors, arlan->numCRCErrors, u_int);
+ READSHM(dev->stats.rx_dropped, arlan->numFramesDiscarded, u_int);
+ READSHM(dev->stats.rx_fifo_errors, arlan->numRXBufferOverflows, u_int);
+ READSHM(dev->stats.rx_frame_errors, arlan->numReceiveFramesLost, u_int);
+ READSHM(dev->stats.rx_over_errors, arlan->numRXOverruns, u_int);
+ READSHM(dev->stats.rx_packets, arlan->numDatagramsReceived, u_int);
+ READSHM(dev->stats.tx_aborted_errors, arlan->numAbortErrors, u_int);
+ READSHM(dev->stats.tx_carrier_errors, arlan->numStatusTimeouts, u_int);
+ READSHM(dev->stats.tx_dropped, arlan->numDatagramsDiscarded, u_int);
+ READSHM(dev->stats.tx_fifo_errors, arlan->numTXUnderruns, u_int);
+ READSHM(dev->stats.tx_packets, arlan->numDatagramsTransmitted, u_int);
+ READSHM(dev->stats.tx_window_errors, arlan->numHoldOffs, u_int);
+
+ ARLAN_DEBUG_EXIT("arlan_statistics");
+
+ return &dev->stats;
+}
+
+
+static void arlan_set_multicast(struct net_device *dev)
+{
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+ struct arlan_conf_stru *conf = priv->Conf;
+ int board_conf_needed = 0;
+
+
+ ARLAN_DEBUG_ENTRY("arlan_set_multicast");
+
+ if (dev->flags & IFF_PROMISC)
+ {
+ unsigned char recMode;
+ READSHM(recMode, arlan->receiveMode, u_char);
+ conf->receiveMode = (ARLAN_RCV_PROMISC | ARLAN_RCV_CONTROL);
+ if (conf->receiveMode != recMode)
+ board_conf_needed = 1;
+ }
+ else
+ {
+ /* turn off promiscuous mode */
+ unsigned char recMode;
+ READSHM(recMode, arlan->receiveMode, u_char);
+ conf->receiveMode = ARLAN_RCV_CLEAN | ARLAN_RCV_CONTROL;
+ if (conf->receiveMode != recMode)
+ board_conf_needed = 1;
+ }
+ if (board_conf_needed)
+ arlan_command(dev, ARLAN_COMMAND_CONF);
+
+ ARLAN_DEBUG_EXIT("arlan_set_multicast");
+}
+
+
+struct net_device * __init arlan_probe(int unit)
+{
+ struct net_device *dev;
+ int err;
+ int m;
+
+ ARLAN_DEBUG_ENTRY("arlan_probe");
+
+ if (arlans_found == MAX_ARLANS)
+ return ERR_PTR(-ENODEV);
+
+ /*
+ * Reserve space for local data and a copy of the shared memory
+ * that is used by the /proc interface.
+ */
+ dev = alloc_etherdev(sizeof(struct arlan_private)
+ + sizeof(struct arlan_shmem));
+ if (!dev)
+ return ERR_PTR(-ENOMEM);
+
+ if (unit >= 0) {
+ sprintf(dev->name, "eth%d", unit);
+ netdev_boot_setup_check(dev);
+
+ if (dev->mem_start) {
+ if (arlan_probe_here(dev, dev->mem_start) == 0)
+ goto found;
+ goto not_found;
+ }
+
+ }
+
+
+ for (m = (int)phys_to_virt(lastFoundAt) + ARLAN_SHMEM_SIZE;
+ m <= (int)phys_to_virt(0xDE000);
+ m += ARLAN_SHMEM_SIZE)
+ {
+ if (arlan_probe_here(dev, m) == 0)
+ {
+ lastFoundAt = (int)virt_to_phys((void*)m);
+ goto found;
+ }
+ }
+
+ if (lastFoundAt == 0xbe000)
+ printk(KERN_ERR "arlan: No Arlan devices found \n");
+
+ not_found:
+ free_netdev(dev);
+ return ERR_PTR(-ENODEV);
+
+ found:
+ err = arlan_setup_device(dev, arlans_found);
+ if (err)
+ dev = ERR_PTR(err);
+ else if (!arlans_found++)
+ printk(KERN_INFO "Arlan driver %s\n", arlan_version);
+
+ return dev;
+}
+
+#ifdef MODULE
+int __init init_module(void)
+{
+ int i = 0;
+
+ ARLAN_DEBUG_ENTRY("init_module");
+
+ if (channelSet != channelSetUNKNOWN || channelNumber != channelNumberUNKNOWN || systemId != systemIdUNKNOWN)
+ return -EINVAL;
+
+ for (i = 0; i < MAX_ARLANS; i++) {
+ struct net_device *dev = arlan_probe(i);
+
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+ }
+ init_arlan_proc();
+ printk(KERN_INFO "Arlan driver %s\n", arlan_version);
+ ARLAN_DEBUG_EXIT("init_module");
+ return 0;
+}
+
+
+void __exit cleanup_module(void)
+{
+ int i = 0;
+ struct net_device *dev;
+
+ ARLAN_DEBUG_ENTRY("cleanup_module");
+
+ IFDEBUG(ARLAN_DEBUG_SHUTDOWN)
+ printk(KERN_INFO "arlan: unloading module\n");
+
+ cleanup_arlan_proc();
+
+ for (i = 0; i < MAX_ARLANS; i++)
+ {
+ dev = arlan_device[i];
+ if (dev) {
+ arlan_command(dev, ARLAN_COMMAND_POWERDOWN );
+
+ unregister_netdev(dev);
+ release_mem_region(virt_to_phys((void *) dev->mem_start),
+ ARLAN_SHMEM_SIZE);
+ free_netdev(dev);
+ arlan_device[i] = NULL;
+ }
+ }
+
+ ARLAN_DEBUG_EXIT("cleanup_module");
+}
+
+
+#endif
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/arlan/arlan-proc.c b/drivers/staging/arlan/arlan-proc.c
new file mode 100644
index 0000000..a8b6896
--- /dev/null
+++ b/drivers/staging/arlan/arlan-proc.c
@@ -0,0 +1,1253 @@
+#include "arlan.h"
+
+#include <linux/sysctl.h>
+
+#ifdef CONFIG_PROC_FS
+
+/* void enableReceive(struct net_device* dev);
+*/
+
+
+
+#define ARLAN_STR_SIZE 0x2ff0
+#define DEV_ARLAN_INFO 1
+#define DEV_ARLAN 1
+#define SARLG(type,var) {\
+ pos += sprintf(arlan_drive_info+pos, "%s\t=\t0x%x\n", #var, READSHMB(priva->card->var)); \
+ }
+
+#define SARLBN(type,var,nn) {\
+ pos += sprintf(arlan_drive_info+pos, "%s\t=\t0x",#var);\
+ for (i=0; i < nn; i++ ) pos += sprintf(arlan_drive_info+pos, "%02x",READSHMB(priva->card->var[i]));\
+ pos += sprintf(arlan_drive_info+pos, "\n"); \
+ }
+
+#define SARLBNpln(type,var,nn) {\
+ for (i=0; i < nn; i++ ) pos += sprintf(arlan_drive_info+pos, "%02x",READSHMB(priva->card->var[i]));\
+ }
+
+#define SARLSTR(var,nn) {\
+ char tmpStr[400];\
+ int tmpLn = nn;\
+ if (nn > 399 ) tmpLn = 399; \
+ memcpy(tmpStr,(char *) priva->conf->var,tmpLn);\
+ tmpStr[tmpLn] = 0; \
+ pos += sprintf(arlan_drive_info+pos, "%s\t=\t%s \n",#var,priva->conf->var);\
+ }
+
+#define SARLUC(var) SARLG(u_char, var)
+#define SARLUCN(var,nn) SARLBN(u_char,var, nn)
+#define SARLUS(var) SARLG(u_short, var)
+#define SARLUSN(var,nn) SARLBN(u_short,var, nn)
+#define SARLUI(var) SARLG(u_int, var)
+
+#define SARLUSA(var) {\
+ u_short tmpVar;\
+ memcpy(&tmpVar, (short *) priva->conf->var,2); \
+ pos += sprintf(arlan_drive_info+pos, "%s\t=\t0x%x\n",#var, tmpVar);\
+}
+
+#define SARLUIA(var) {\
+ u_int tmpVar;\
+ memcpy(&tmpVar, (int* )priva->conf->var,4); \
+ pos += sprintf(arlan_drive_info+pos, "%s\t=\t0x%x\n",#var, tmpVar);\
+}
+
+
+static const char *arlan_diagnostic_info_string(struct net_device *dev)
+{
+
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+ u_char diagnosticInfo;
+
+ READSHM(diagnosticInfo, arlan->diagnosticInfo, u_char);
+
+ switch (diagnosticInfo)
+ {
+ case 0xFF:
+ return "Diagnostic info is OK";
+ case 0xFE:
+ return "ERROR EPROM Checksum error ";
+ case 0xFD:
+ return "ERROR Local Ram Test Failed ";
+ case 0xFC:
+ return "ERROR SCC failure ";
+ case 0xFB:
+ return "ERROR BackBone failure ";
+ case 0xFA:
+ return "ERROR transceiver not found ";
+ case 0xF9:
+ return "ERROR no more address space ";
+ case 0xF8:
+ return "ERROR Checksum error ";
+ case 0xF7:
+ return "ERROR Missing SS Code";
+ case 0xF6:
+ return "ERROR Invalid config format";
+ case 0xF5:
+ return "ERROR Reserved errorcode F5";
+ case 0xF4:
+ return "ERROR Invalid spreading code/channel number";
+ case 0xF3:
+ return "ERROR Load Code Error";
+ case 0xF2:
+ return "ERROR Reserver errorcode F2 ";
+ case 0xF1:
+ return "ERROR Invalid command receivec by LAN card ";
+ case 0xF0:
+ return "ERROR Invalid parameter found in command ";
+ case 0xEF:
+ return "ERROR On-chip timer failure ";
+ case 0xEE:
+ return "ERROR T410 timer failure ";
+ case 0xED:
+ return "ERROR Too Many TxEnable commands ";
+ case 0xEC:
+ return "ERROR EEPROM error on radio module ";
+ default:
+ return "ERROR unknown Diagnostic info reply code ";
+ }
+}
+
+static const char *arlan_hardware_type_string(struct net_device *dev)
+{
+ u_char hardwareType;
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+
+ READSHM(hardwareType, arlan->hardwareType, u_char);
+ switch (hardwareType)
+ {
+ case 0x00:
+ return "type A450";
+ case 0x01:
+ return "type A650 ";
+ case 0x04:
+ return "type TMA coproc";
+ case 0x0D:
+ return "type A650E ";
+ case 0x18:
+ return "type TMA coproc Australian";
+ case 0x19:
+ return "type A650A ";
+ case 0x26:
+ return "type TMA coproc European";
+ case 0x2E:
+ return "type A655 ";
+ case 0x2F:
+ return "type A655A ";
+ case 0x30:
+ return "type A655E ";
+ case 0x0B:
+ return "type A670 ";
+ case 0x0C:
+ return "type A670E ";
+ case 0x2D:
+ return "type A670A ";
+ case 0x0F:
+ return "type A411T";
+ case 0x16:
+ return "type A411TA";
+ case 0x1B:
+ return "type A440T";
+ case 0x1C:
+ return "type A412T";
+ case 0x1E:
+ return "type A412TA";
+ case 0x22:
+ return "type A411TE";
+ case 0x24:
+ return "type A412TE";
+ case 0x27:
+ return "type A671T ";
+ case 0x29:
+ return "type A671TA ";
+ case 0x2B:
+ return "type A671TE ";
+ case 0x31:
+ return "type A415T ";
+ case 0x33:
+ return "type A415TA ";
+ case 0x35:
+ return "type A415TE ";
+ case 0x37:
+ return "type A672";
+ case 0x39:
+ return "type A672A ";
+ case 0x3B:
+ return "type A672T";
+ case 0x6B:
+ return "type IC2200";
+ default:
+ return "type A672T";
+ }
+}
+#ifdef ARLAN_DEBUGGING
+static void arlan_print_diagnostic_info(struct net_device *dev)
+{
+ int i;
+ u_char diagnosticInfo;
+ u_short diagnosticOffset;
+ u_char hardwareType;
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+
+ // ARLAN_DEBUG_ENTRY("arlan_print_diagnostic_info");
+
+ if (READSHMB(arlan->configuredStatusFlag) == 0)
+ printk("Arlan: Card NOT configured\n");
+ else
+ printk("Arlan: Card is configured\n");
+
+ READSHM(diagnosticInfo, arlan->diagnosticInfo, u_char);
+ READSHM(diagnosticOffset, arlan->diagnosticOffset, u_short);
+
+ printk(KERN_INFO "%s\n", arlan_diagnostic_info_string(dev));
+
+ if (diagnosticInfo != 0xff)
+ printk("%s arlan: Diagnostic Offset %d \n", dev->name, diagnosticOffset);
+
+ printk("arlan: LAN CODE ID = ");
+ for (i = 0; i < 6; i++)
+ DEBUGSHM(1, "%03d:", arlan->lanCardNodeId[i], u_char);
+ printk("\n");
+
+ printk("arlan: Arlan BroadCast address = ");
+ for (i = 0; i < 6; i++)
+ DEBUGSHM(1, "%03d:", arlan->broadcastAddress[i], u_char);
+ printk("\n");
+
+ READSHM(hardwareType, arlan->hardwareType, u_char);
+ printk(KERN_INFO "%s\n", arlan_hardware_type_string(dev));
+
+
+ DEBUGSHM(1, "arlan: channelNumber=%d\n", arlan->channelNumber, u_char);
+ DEBUGSHM(1, "arlan: channelSet=%d\n", arlan->channelSet, u_char);
+ DEBUGSHM(1, "arlan: spreadingCode=%d\n", arlan->spreadingCode, u_char);
+ DEBUGSHM(1, "arlan: radioNodeId=%d\n", arlan->radioNodeId, u_short);
+ DEBUGSHM(1, "arlan: SID =%d\n", arlan->SID, u_short);
+ DEBUGSHM(1, "arlan: rxOffset=%d\n", arlan->rxOffset, u_short);
+
+ DEBUGSHM(1, "arlan: registration mode is %d\n", arlan->registrationMode, u_char);
+
+ printk("arlan: name= ");
+ IFDEBUG(1)
+
+ for (i = 0; i < 16; i++)
+ {
+ char c;
+ READSHM(c, arlan->name[i], char);
+ if (c)
+ printk("%c", c);
+ }
+ printk("\n");
+
+// ARLAN_DEBUG_EXIT("arlan_print_diagnostic_info");
+
+}
+
+
+/****************************** TEST MEMORY **************/
+
+static int arlan_hw_test_memory(struct net_device *dev)
+{
+ u_char *ptr;
+ int i;
+ int memlen = sizeof(struct arlan_shmem) - 0xF; /* avoid control register */
+ volatile char *arlan_mem = (char *) (dev->mem_start);
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+ char pattern;
+
+ ptr = NULL;
+
+ /* hold card in reset state */
+ setHardwareReset(dev);
+
+ /* test memory */
+ pattern = 0;
+ for (i = 0; i < memlen; i++)
+ WRITESHM(arlan_mem[i], ((u_char) pattern++), u_char);
+
+ pattern = 0;
+ for (i = 0; i < memlen; i++)
+ {
+ char res;
+ READSHM(res, arlan_mem[i], char);
+ if (res != pattern++)
+ {
+ printk(KERN_ERR "Arlan driver memory test 1 failed \n");
+ return -1;
+ }
+ }
+
+ pattern = 0;
+ for (i = 0; i < memlen; i++)
+ WRITESHM(arlan_mem[i], ~(pattern++), char);
+
+ pattern = 0;
+ for (i = 0; i < memlen; i++)
+ {
+ char res;
+ READSHM(res, arlan_mem[i], char);
+ if (res != ~(pattern++))
+ {
+ printk(KERN_ERR "Arlan driver memory test 2 failed \n");
+ return -1;
+ }
+ }
+
+ /* zero memory */
+ for (i = 0; i < memlen; i++)
+ WRITESHM(arlan_mem[i], 0x00, char);
+
+ IFDEBUG(1) printk(KERN_INFO "Arlan: memory tests ok\n");
+
+ /* set reset flag and then release reset */
+ WRITESHM(arlan->resetFlag, 0xff, u_char);
+
+ clearChannelAttention(dev);
+ clearHardwareReset(dev);
+
+ /* wait for reset flag to become zero, we'll wait for two seconds */
+ if (arlan_command(dev, ARLAN_COMMAND_LONG_WAIT_NOW))
+ {
+ printk(KERN_ERR "%s arlan: failed to come back from memory test\n", dev->name);
+ return -1;
+ }
+ return 0;
+}
+
+static int arlan_setup_card_by_book(struct net_device *dev)
+{
+ u_char irqLevel, configuredStatusFlag;
+ struct arlan_private *priv = netdev_priv(dev);
+ volatile struct arlan_shmem __iomem *arlan = priv->card;
+
+// ARLAN_DEBUG_ENTRY("arlan_setup_card");
+
+ READSHM(configuredStatusFlag, arlan->configuredStatusFlag, u_char);
+
+ IFDEBUG(10)
+ if (configuredStatusFlag != 0)
+ IFDEBUG(10) printk("arlan: CARD IS CONFIGURED\n");
+ else
+ IFDEBUG(10) printk("arlan: card is NOT configured\n");
+
+ if (testMemory || (READSHMB(arlan->diagnosticInfo) != 0xff))
+ if (arlan_hw_test_memory(dev))
+ return -1;
+
+ DEBUGSHM(4, "arlan configuredStatus = %d \n", arlan->configuredStatusFlag, u_char);
+ DEBUGSHM(4, "arlan driver diagnostic: 0x%2x\n", arlan->diagnosticInfo, u_char);
+
+ /* issue nop command - no interrupt */
+ arlan_command(dev, ARLAN_COMMAND_NOOP);
+ if (arlan_command(dev, ARLAN_COMMAND_WAIT_NOW) != 0)
+ return -1;
+
+ IFDEBUG(50) printk("1st Noop successfully executed !!\n");
+
+ /* try to turn on the arlan interrupts */
+ clearClearInterrupt(dev);
+ setClearInterrupt(dev);
+ setInterruptEnable(dev);
+
+ /* issue nop command - with interrupt */
+
+ arlan_command(dev, ARLAN_COMMAND_NOOPINT);
+ if (arlan_command(dev, ARLAN_COMMAND_WAIT_NOW) != 0)
+ return -1;
+
+
+ IFDEBUG(50) printk("2nd Noop successfully executed !!\n");
+
+ READSHM(irqLevel, arlan->irqLevel, u_char)
+
+ if (irqLevel != dev->irq)
+ {
+ IFDEBUG(1) printk(KERN_WARNING "arlan dip switches set irq to %d\n", irqLevel);
+ printk(KERN_WARNING "device driver irq set to %d - does not match\n", dev->irq);
+ dev->irq = irqLevel;
+ }
+ else
+ IFDEBUG(2) printk("irq level is OK\n");
+
+
+ IFDEBUG(3) arlan_print_diagnostic_info(dev);
+
+ arlan_command(dev, ARLAN_COMMAND_CONF);
+
+ READSHM(configuredStatusFlag, arlan->configuredStatusFlag, u_char);
+ if (configuredStatusFlag == 0)
+ {
+ printk(KERN_WARNING "arlan configure failed\n");
+ return -1;
+ }
+ arlan_command(dev, ARLAN_COMMAND_LONG_WAIT_NOW);
+ arlan_command(dev, ARLAN_COMMAND_RX);
+ arlan_command(dev, ARLAN_COMMAND_LONG_WAIT_NOW);
+ printk(KERN_NOTICE "%s: arlan driver version %s loaded\n",
+ dev->name, arlan_version);
+
+// ARLAN_DEBUG_EXIT("arlan_setup_card");
+
+ return 0; /* no errors */
+}
+#endif
+
+#ifdef ARLAN_PROC_INTERFACE
+#ifdef ARLAN_PROC_SHM_DUMP
+
+static char arlan_drive_info[ARLAN_STR_SIZE] = "A655\n\0";
+
+static int arlan_sysctl_info(ctl_table * ctl, int write,
+ void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+ int i;
+ int retv, pos, devnum;
+ struct arlan_private *priva = NULL;
+ struct net_device *dev;
+ pos = 0;
+ if (write)
+ {
+ printk("wrirte: ");
+ for (i = 0; i < 100; i++)
+ printk("adi %x \n", arlan_drive_info[i]);
+ }
+ if (ctl->procname == NULL || arlan_drive_info == NULL)
+ {
+ printk(KERN_WARNING " procname is NULL in sysctl_table or arlan_drive_info is NULL \n at arlan module\n ");
+ return -1;
+ }
+ devnum = ctl->procname[5] - '0';
+ if (devnum < 0 || devnum > MAX_ARLANS - 1)
+ {
+ printk(KERN_WARNING "too strange devnum in procfs parse\n ");
+ return -1;
+ }
+ else if (arlan_device[devnum] == NULL)
+ {
+ if (ctl->procname)
+ pos += sprintf(arlan_drive_info + pos, "\t%s\n\n", ctl->procname);
+ pos += sprintf(arlan_drive_info + pos, "No device found here \n");
+ goto final;
+ }
+ else
+ priva = netdev_priv(arlan_device[devnum]);
+
+ if (priva == NULL)
+ {
+ printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+ return -1;
+ }
+ dev = arlan_device[devnum];
+
+ memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
+
+ pos = sprintf(arlan_drive_info, "Arlan info \n");
+ /* Header Signature */
+ SARLSTR(textRegion, 48);
+ SARLUC(resetFlag);
+ pos += sprintf(arlan_drive_info + pos, "diagnosticInfo\t=\t%s \n", arlan_diagnostic_info_string(dev));
+ SARLUC(diagnosticInfo);
+ SARLUS(diagnosticOffset);
+ SARLUCN(_1, 12);
+ SARLUCN(lanCardNodeId, 6);
+ SARLUCN(broadcastAddress, 6);
+ pos += sprintf(arlan_drive_info + pos, "hardwareType =\t %s \n", arlan_hardware_type_string(dev));
+ SARLUC(hardwareType);
+ SARLUC(majorHardwareVersion);
+ SARLUC(minorHardwareVersion);
+ SARLUC(radioModule);
+ SARLUC(defaultChannelSet);
+ SARLUCN(_2, 47);
+
+ /* Control/Status Block - 0x0080 */
+ SARLUC(interruptInProgress);
+ SARLUC(cntrlRegImage);
+
+ SARLUCN(_3, 14);
+ SARLUC(commandByte);
+ SARLUCN(commandParameter, 15);
+
+ /* Receive Status - 0x00a0 */
+ SARLUC(rxStatus);
+ SARLUC(rxFrmType);
+ SARLUS(rxOffset);
+ SARLUS(rxLength);
+ SARLUCN(rxSrc, 6);
+ SARLUC(rxBroadcastFlag);
+ SARLUC(rxQuality);
+ SARLUC(scrambled);
+ SARLUCN(_4, 1);
+
+ /* Transmit Status - 0x00b0 */
+ SARLUC(txStatus);
+ SARLUC(txAckQuality);
+ SARLUC(numRetries);
+ SARLUCN(_5, 14);
+ SARLUCN(registeredRouter, 6);
+ SARLUCN(backboneRouter, 6);
+ SARLUC(registrationStatus);
+ SARLUC(configuredStatusFlag);
+ SARLUCN(_6, 1);
+ SARLUCN(ultimateDestAddress, 6);
+ SARLUCN(immedDestAddress, 6);
+ SARLUCN(immedSrcAddress, 6);
+ SARLUS(rxSequenceNumber);
+ SARLUC(assignedLocaltalkAddress);
+ SARLUCN(_7, 27);
+
+ /* System Parameter Block */
+
+ /* - Driver Parameters (Novell Specific) */
+
+ SARLUS(txTimeout);
+ SARLUS(transportTime);
+ SARLUCN(_8, 4);
+
+ /* - Configuration Parameters */
+ SARLUC(irqLevel);
+ SARLUC(spreadingCode);
+ SARLUC(channelSet);
+ SARLUC(channelNumber);
+ SARLUS(radioNodeId);
+ SARLUCN(_9, 2);
+ SARLUC(scramblingDisable);
+ SARLUC(radioType);
+ SARLUS(routerId);
+ SARLUCN(_10, 9);
+ SARLUC(txAttenuation);
+ SARLUIA(systemId);
+ SARLUS(globalChecksum);
+ SARLUCN(_11, 4);
+ SARLUS(maxDatagramSize);
+ SARLUS(maxFrameSize);
+ SARLUC(maxRetries);
+ SARLUC(receiveMode);
+ SARLUC(priority);
+ SARLUC(rootOrRepeater);
+ SARLUCN(specifiedRouter, 6);
+ SARLUS(fastPollPeriod);
+ SARLUC(pollDecay);
+ SARLUSA(fastPollDelay);
+ SARLUC(arlThreshold);
+ SARLUC(arlDecay);
+ SARLUCN(_12, 1);
+ SARLUS(specRouterTimeout);
+ SARLUCN(_13, 5);
+
+ /* Scrambled Area */
+ SARLUIA(SID);
+ SARLUCN(encryptionKey, 12);
+ SARLUIA(_14);
+ SARLUSA(waitTime);
+ SARLUSA(lParameter);
+ SARLUCN(_15, 3);
+ SARLUS(headerSize);
+ SARLUS(sectionChecksum);
+
+ SARLUC(registrationMode);
+ SARLUC(registrationFill);
+ SARLUS(pollPeriod);
+ SARLUS(refreshPeriod);
+ SARLSTR(name, 16);
+ SARLUCN(NID, 6);
+ SARLUC(localTalkAddress);
+ SARLUC(codeFormat);
+ SARLUC(numChannels);
+ SARLUC(channel1);
+ SARLUC(channel2);
+ SARLUC(channel3);
+ SARLUC(channel4);
+ SARLUCN(SSCode, 59);
+
+/* SARLUCN( _16, 0x140);
+ */
+ /* Statistics Block - 0x0300 */
+ SARLUC(hostcpuLock);
+ SARLUC(lancpuLock);
+ SARLUCN(resetTime, 18);
+ SARLUIA(numDatagramsTransmitted);
+ SARLUIA(numReTransmissions);
+ SARLUIA(numFramesDiscarded);
+ SARLUIA(numDatagramsReceived);
+ SARLUIA(numDuplicateReceivedFrames);
+ SARLUIA(numDatagramsDiscarded);
+ SARLUS(maxNumReTransmitDatagram);
+ SARLUS(maxNumReTransmitFrames);
+ SARLUS(maxNumConsecutiveDuplicateFrames);
+ /* misaligned here so we have to go to characters */
+ SARLUIA(numBytesTransmitted);
+ SARLUIA(numBytesReceived);
+ SARLUIA(numCRCErrors);
+ SARLUIA(numLengthErrors);
+ SARLUIA(numAbortErrors);
+ SARLUIA(numTXUnderruns);
+ SARLUIA(numRXOverruns);
+ SARLUIA(numHoldOffs);
+ SARLUIA(numFramesTransmitted);
+ SARLUIA(numFramesReceived);
+ SARLUIA(numReceiveFramesLost);
+ SARLUIA(numRXBufferOverflows);
+ SARLUIA(numFramesDiscardedAddrMismatch);
+ SARLUIA(numFramesDiscardedSIDMismatch);
+ SARLUIA(numPollsTransmistted);
+ SARLUIA(numPollAcknowledges);
+ SARLUIA(numStatusTimeouts);
+ SARLUIA(numNACKReceived);
+ SARLUS(auxCmd);
+ SARLUCN(dumpPtr, 4);
+ SARLUC(dumpVal);
+ SARLUC(wireTest);
+
+ /* next 4 seems too long for procfs, over single page ?
+ SARLUCN( _17, 0x86);
+ SARLUCN( txBuffer, 0x800);
+ SARLUCN( rxBuffer, 0x800);
+ SARLUCN( _18, 0x0bff);
+ */
+
+ pos += sprintf(arlan_drive_info + pos, "rxRing\t=\t0x");
+ for (i = 0; i < 0x50; i++)
+ pos += sprintf(arlan_drive_info + pos, "%02x", ((char *) priva->conf)[priva->conf->rxOffset + i]);
+ pos += sprintf(arlan_drive_info + pos, "\n");
+
+ SARLUC(configStatus);
+ SARLUC(_22);
+ SARLUC(progIOCtrl);
+ SARLUC(shareMBase);
+ SARLUC(controlRegister);
+
+ pos += sprintf(arlan_drive_info + pos, " total %d chars\n", pos);
+ if (ctl)
+ if (ctl->procname)
+ pos += sprintf(arlan_drive_info + pos, " driver name : %s\n", ctl->procname);
+final:
+ *lenp = pos;
+
+ if (!write)
+ retv = proc_dostring(ctl, write, buffer, lenp, ppos);
+ else
+ {
+ *lenp = 0;
+ return -1;
+ }
+ return retv;
+}
+
+
+static int arlan_sysctl_info161719(ctl_table * ctl, int write,
+ void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+ int i;
+ int retv, pos, devnum;
+ struct arlan_private *priva = NULL;
+
+ pos = 0;
+ devnum = ctl->procname[5] - '0';
+ if (arlan_device[devnum] == NULL)
+ {
+ pos += sprintf(arlan_drive_info + pos, "No device found here \n");
+ goto final;
+ }
+ else
+ priva = netdev_priv(arlan_device[devnum]);
+ if (priva == NULL)
+ {
+ printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+ return -1;
+ }
+ memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
+ SARLUCN(_16, 0xC0);
+ SARLUCN(_17, 0x6A);
+ SARLUCN(_18, 14);
+ SARLUCN(_19, 0x86);
+ SARLUCN(_21, 0x3fd);
+
+final:
+ *lenp = pos;
+ retv = proc_dostring(ctl, write, buffer, lenp, ppos);
+ return retv;
+}
+
+static int arlan_sysctl_infotxRing(ctl_table * ctl, int write,
+ void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+ int i;
+ int retv, pos, devnum;
+ struct arlan_private *priva = NULL;
+
+ pos = 0;
+ devnum = ctl->procname[5] - '0';
+ if (arlan_device[devnum] == NULL)
+ {
+ pos += sprintf(arlan_drive_info + pos, "No device found here \n");
+ goto final;
+ }
+ else
+ priva = netdev_priv(arlan_device[devnum]);
+ if (priva == NULL)
+ {
+ printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+ return -1;
+ }
+ memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
+ SARLBNpln(u_char, txBuffer, 0x800);
+final:
+ *lenp = pos;
+ retv = proc_dostring(ctl, write, buffer, lenp, ppos);
+ return retv;
+}
+
+static int arlan_sysctl_inforxRing(ctl_table * ctl, int write,
+ void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+ int i;
+ int retv, pos, devnum;
+ struct arlan_private *priva = NULL;
+
+ pos = 0;
+ devnum = ctl->procname[5] - '0';
+ if (arlan_device[devnum] == NULL)
+ {
+ pos += sprintf(arlan_drive_info + pos, "No device found here \n");
+ goto final;
+ } else
+ priva = netdev_priv(arlan_device[devnum]);
+ if (priva == NULL)
+ {
+ printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+ return -1;
+ }
+ memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
+ SARLBNpln(u_char, rxBuffer, 0x800);
+final:
+ *lenp = pos;
+ retv = proc_dostring(ctl, write, buffer, lenp, ppos);
+ return retv;
+}
+
+static int arlan_sysctl_info18(ctl_table * ctl, int write,
+ void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+ int i;
+ int retv, pos, devnum;
+ struct arlan_private *priva = NULL;
+
+ pos = 0;
+ devnum = ctl->procname[5] - '0';
+ if (arlan_device[devnum] == NULL)
+ {
+ pos += sprintf(arlan_drive_info + pos, "No device found here \n");
+ goto final;
+ }
+ else
+ priva = netdev_priv(arlan_device[devnum]);
+ if (priva == NULL)
+ {
+ printk(KERN_WARNING " Could not find the device private in arlan procsys, bad\n ");
+ return -1;
+ }
+ memcpy_fromio(priva->conf, priva->card, sizeof(struct arlan_shmem));
+ SARLBNpln(u_char, _18, 0x800);
+
+final:
+ *lenp = pos;
+ retv = proc_dostring(ctl, write, buffer, lenp, ppos);
+ return retv;
+}
+
+
+#endif /* #ifdef ARLAN_PROC_SHM_DUMP */
+
+
+static char conf_reset_result[200];
+
+static int arlan_configure(ctl_table * ctl, int write,
+ void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+ int pos = 0;
+ int devnum = ctl->procname[6] - '0';
+ struct arlan_private *priv;
+
+ if (devnum < 0 || devnum > MAX_ARLANS - 1)
+ {
+ printk(KERN_WARNING "too strange devnum in procfs parse\n ");
+ return -1;
+ }
+ else if (arlan_device[devnum] != NULL)
+ {
+ priv = netdev_priv(arlan_device[devnum]);
+
+ arlan_command(arlan_device[devnum], ARLAN_COMMAND_CLEAN_AND_CONF);
+ }
+ else
+ return -1;
+
+ *lenp = pos;
+ return proc_dostring(ctl, write, buffer, lenp, ppos);
+}
+
+static int arlan_sysctl_reset(ctl_table * ctl, int write,
+ void __user *buffer, size_t * lenp, loff_t *ppos)
+{
+ int pos = 0;
+ int devnum = ctl->procname[5] - '0';
+ struct arlan_private *priv;
+
+ if (devnum < 0 || devnum > MAX_ARLANS - 1)
+ {
+ printk(KERN_WARNING "too strange devnum in procfs parse\n ");
+ return -1;
+ }
+ else if (arlan_device[devnum] != NULL)
+ {
+ priv = netdev_priv(arlan_device[devnum]);
+ arlan_command(arlan_device[devnum], ARLAN_COMMAND_CLEAN_AND_RESET);
+
+ } else
+ return -1;
+ *lenp = pos + 3;
+ return proc_dostring(ctl, write, buffer, lenp, ppos);
+}
+
+
+/* Place files in /proc/sys/dev/arlan */
+#define CTBLN(num,card,nam) \
+ { .ctl_name = num,\
+ .procname = #nam,\
+ .data = &(arlan_conf[card].nam),\
+ .maxlen = sizeof(int), .mode = 0600, .proc_handler = &proc_dointvec}
+#ifdef ARLAN_DEBUGGING
+
+#define ARLAN_PROC_DEBUG_ENTRIES \
+ { .ctl_name = 48, .procname = "entry_exit_debug",\
+ .data = &arlan_entry_and_exit_debug,\
+ .maxlen = sizeof(int), .mode = 0600, .proc_handler = &proc_dointvec},\
+ { .ctl_name = 49, .procname = "debug", .data = &arlan_debug,\
+ .maxlen = sizeof(int), .mode = 0600, .proc_handler = &proc_dointvec},
+#else
+#define ARLAN_PROC_DEBUG_ENTRIES
+#endif
+
+#define ARLAN_SYSCTL_TABLE_TOTAL(cardNo)\
+ CTBLN(1,cardNo,spreadingCode),\
+ CTBLN(2,cardNo, channelNumber),\
+ CTBLN(3,cardNo, scramblingDisable),\
+ CTBLN(4,cardNo, txAttenuation),\
+ CTBLN(5,cardNo, systemId), \
+ CTBLN(6,cardNo, maxDatagramSize),\
+ CTBLN(7,cardNo, maxFrameSize),\
+ CTBLN(8,cardNo, maxRetries),\
+ CTBLN(9,cardNo, receiveMode),\
+ CTBLN(10,cardNo, priority),\
+ CTBLN(11,cardNo, rootOrRepeater),\
+ CTBLN(12,cardNo, SID),\
+ CTBLN(13,cardNo, registrationMode),\
+ CTBLN(14,cardNo, registrationFill),\
+ CTBLN(15,cardNo, localTalkAddress),\
+ CTBLN(16,cardNo, codeFormat),\
+ CTBLN(17,cardNo, numChannels),\
+ CTBLN(18,cardNo, channel1),\
+ CTBLN(19,cardNo, channel2),\
+ CTBLN(20,cardNo, channel3),\
+ CTBLN(21,cardNo, channel4),\
+ CTBLN(22,cardNo, txClear),\
+ CTBLN(23,cardNo, txRetries),\
+ CTBLN(24,cardNo, txRouting),\
+ CTBLN(25,cardNo, txScrambled),\
+ CTBLN(26,cardNo, rxParameter),\
+ CTBLN(27,cardNo, txTimeoutMs),\
+ CTBLN(28,cardNo, waitCardTimeout),\
+ CTBLN(29,cardNo, channelSet), \
+ {.ctl_name = 30, .procname = "name",\
+ .data = arlan_conf[cardNo].siteName,\
+ .maxlen = 16, .mode = 0600, .proc_handler = &proc_dostring},\
+ CTBLN(31,cardNo,waitTime),\
+ CTBLN(32,cardNo,lParameter),\
+ CTBLN(33,cardNo,_15),\
+ CTBLN(34,cardNo,headerSize),\
+ CTBLN(36,cardNo,tx_delay_ms),\
+ CTBLN(37,cardNo,retries),\
+ CTBLN(38,cardNo,ReTransmitPacketMaxSize),\
+ CTBLN(39,cardNo,waitReTransmitPacketMaxSize),\
+ CTBLN(40,cardNo,fastReTransCount),\
+ CTBLN(41,cardNo,driverRetransmissions),\
+ CTBLN(42,cardNo,txAckTimeoutMs),\
+ CTBLN(43,cardNo,registrationInterrupts),\
+ CTBLN(44,cardNo,hardwareType),\
+ CTBLN(45,cardNo,radioType),\
+ CTBLN(46,cardNo,writeEEPROM),\
+ CTBLN(47,cardNo,writeRadioType),\
+ ARLAN_PROC_DEBUG_ENTRIES\
+ CTBLN(50,cardNo,in_speed),\
+ CTBLN(51,cardNo,out_speed),\
+ CTBLN(52,cardNo,in_speed10),\
+ CTBLN(53,cardNo,out_speed10),\
+ CTBLN(54,cardNo,in_speed_max),\
+ CTBLN(55,cardNo,out_speed_max),\
+ CTBLN(56,cardNo,measure_rate),\
+ CTBLN(57,cardNo,pre_Command_Wait),\
+ CTBLN(58,cardNo,rx_tweak1),\
+ CTBLN(59,cardNo,rx_tweak2),\
+ CTBLN(60,cardNo,tx_queue_len),\
+
+
+
+static ctl_table arlan_conf_table0[] =
+{
+ ARLAN_SYSCTL_TABLE_TOTAL(0)
+
+#ifdef ARLAN_PROC_SHM_DUMP
+ {
+ .ctl_name = 150,
+ .procname = "arlan0-txRing",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_infotxRing,
+ },
+ {
+ .ctl_name = 151,
+ .procname = "arlan0-rxRing",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_inforxRing,
+ },
+ {
+ .ctl_name = 152,
+ .procname = "arlan0-18",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_info18,
+ },
+ {
+ .ctl_name = 153,
+ .procname = "arlan0-ring",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_info161719,
+ },
+ {
+ .ctl_name = 154,
+ .procname = "arlan0-shm-cpy",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_info,
+ },
+#endif
+ {
+ .ctl_name = 155,
+ .procname = "config0",
+ .data = &conf_reset_result,
+ .maxlen = 100,
+ .mode = 0400,
+ .proc_handler = &arlan_configure
+ },
+ {
+ .ctl_name = 156,
+ .procname = "reset0",
+ .data = &conf_reset_result,
+ .maxlen = 100,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_reset,
+ },
+ { .ctl_name = 0 }
+};
+
+static ctl_table arlan_conf_table1[] =
+{
+
+ ARLAN_SYSCTL_TABLE_TOTAL(1)
+
+#ifdef ARLAN_PROC_SHM_DUMP
+ {
+ .ctl_name = 150,
+ .procname = "arlan1-txRing",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_infotxRing,
+ },
+ {
+ .ctl_name = 151,
+ .procname = "arlan1-rxRing",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_inforxRing,
+ },
+ {
+ .ctl_name = 152,
+ .procname = "arlan1-18",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_info18,
+ },
+ {
+ .ctl_name = 153,
+ .procname = "arlan1-ring",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_info161719,
+ },
+ {
+ .ctl_name = 154,
+ .procname = "arlan1-shm-cpy",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_info,
+ },
+#endif
+ {
+ .ctl_name = 155,
+ .procname = "config1",
+ .data = &conf_reset_result,
+ .maxlen = 100,
+ .mode = 0400,
+ .proc_handler = &arlan_configure,
+ },
+ {
+ .ctl_name = 156,
+ .procname = "reset1",
+ .data = &conf_reset_result,
+ .maxlen = 100,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_reset,
+ },
+ { .ctl_name = 0 }
+};
+
+static ctl_table arlan_conf_table2[] =
+{
+
+ ARLAN_SYSCTL_TABLE_TOTAL(2)
+
+#ifdef ARLAN_PROC_SHM_DUMP
+ {
+ .ctl_name = 150,
+ .procname = "arlan2-txRing",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_infotxRing,
+ },
+ {
+ .ctl_name = 151,
+ .procname = "arlan2-rxRing",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_inforxRing,
+ },
+ {
+ .ctl_name = 152,
+ .procname = "arlan2-18",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_info18,
+ },
+ {
+ .ctl_name = 153,
+ .procname = "arlan2-ring",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_info161719,
+ },
+ {
+ .ctl_name = 154,
+ .procname = "arlan2-shm-cpy",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_info,
+ },
+#endif
+ {
+ .ctl_name = 155,
+ .procname = "config2",
+ .data = &conf_reset_result,
+ .maxlen = 100,
+ .mode = 0400,
+ .proc_handler = &arlan_configure,
+ },
+ {
+ .ctl_name = 156,
+ .procname = "reset2",
+ .data = &conf_reset_result,
+ .maxlen = 100,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_reset,
+ },
+ { .ctl_name = 0 }
+};
+
+static ctl_table arlan_conf_table3[] =
+{
+
+ ARLAN_SYSCTL_TABLE_TOTAL(3)
+
+#ifdef ARLAN_PROC_SHM_DUMP
+ {
+ .ctl_name = 150,
+ .procname = "arlan3-txRing",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_infotxRing,
+ },
+ {
+ .ctl_name = 151,
+ .procname = "arlan3-rxRing",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_inforxRing,
+ },
+ {
+ .ctl_name = 152,
+ .procname = "arlan3-18",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_info18,
+ },
+ {
+ .ctl_name = 153,
+ .procname = "arlan3-ring",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_info161719,
+ },
+ {
+ .ctl_name = 154,
+ .procname = "arlan3-shm-cpy",
+ .data = &arlan_drive_info,
+ .maxlen = ARLAN_STR_SIZE,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_info,
+ },
+#endif
+ {
+ .ctl_name = 155,
+ .procname = "config3",
+ .data = &conf_reset_result,
+ .maxlen = 100,
+ .mode = 0400,
+ .proc_handler = &arlan_configure,
+ },
+ {
+ .ctl_name = 156,
+ .procname = "reset3",
+ .data = &conf_reset_result,
+ .maxlen = 100,
+ .mode = 0400,
+ .proc_handler = &arlan_sysctl_reset,
+ },
+ { .ctl_name = 0 }
+};
+
+
+
+static ctl_table arlan_table[] =
+{
+ {
+ .ctl_name = 0,
+ .procname = "arlan0",
+ .maxlen = 0,
+ .mode = 0600,
+ .child = arlan_conf_table0,
+ },
+ {
+ .ctl_name = 0,
+ .procname = "arlan1",
+ .maxlen = 0,
+ .mode = 0600,
+ .child = arlan_conf_table1,
+ },
+ {
+ .ctl_name = 0,
+ .procname = "arlan2",
+ .maxlen = 0,
+ .mode = 0600,
+ .child = arlan_conf_table2,
+ },
+ {
+ .ctl_name = 0,
+ .procname = "arlan3",
+ .maxlen = 0,
+ .mode = 0600,
+ .child = arlan_conf_table3,
+ },
+ { .ctl_name = 0 }
+};
+
+#else
+
+static ctl_table arlan_table[MAX_ARLANS + 1] =
+{
+ { .ctl_name = 0 }
+};
+#endif
+
+
+// static int mmtu = 1234;
+
+static ctl_table arlan_root_table[] =
+{
+ {
+ .ctl_name = CTL_ARLAN,
+ .procname = "arlan",
+ .maxlen = 0,
+ .mode = 0555,
+ .child = arlan_table,
+ },
+ { .ctl_name = 0 }
+};
+
+/* Make sure that /proc/sys/dev is there */
+//static ctl_table arlan_device_root_table[] =
+//{
+// {CTL_DEV, "dev", NULL, 0, 0555, arlan_root_table},
+// {0}
+//};
+
+
+static struct ctl_table_header *arlan_device_sysctl_header;
+
+int __init init_arlan_proc(void)
+{
+
+ int i = 0;
+ if (arlan_device_sysctl_header)
+ return 0;
+ for (i = 0; i < MAX_ARLANS && arlan_device[i]; i++)
+ arlan_table[i].ctl_name = i + 1;
+ arlan_device_sysctl_header = register_sysctl_table(arlan_root_table);
+ if (!arlan_device_sysctl_header)
+ return -1;
+
+ return 0;
+
+}
+
+void __exit cleanup_arlan_proc(void)
+{
+ unregister_sysctl_table(arlan_device_sysctl_header);
+ arlan_device_sysctl_header = NULL;
+
+}
+#endif
diff --git a/drivers/staging/arlan/arlan.h b/drivers/staging/arlan/arlan.h
new file mode 100644
index 0000000..fb3ad51
--- /dev/null
+++ b/drivers/staging/arlan/arlan.h
@@ -0,0 +1,539 @@
+/*
+ * Copyright (C) 1997 Cullen Jennings
+ * Copyright (C) 1998 Elmer.Joandi@ut.ee, +37-255-13500
+ * GNU General Public License applies
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/skbuff.h>
+#include <linux/if_ether.h> /* For the statistics structure. */
+#include <linux/if_arp.h> /* For ARPHRD_ETHER */
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/in.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+
+
+//#define ARLAN_DEBUGGING 1
+
+#define ARLAN_PROC_INTERFACE
+#define MAX_ARLANS 4 /* not more than 4 ! */
+#define ARLAN_PROC_SHM_DUMP /* shows all card registers, makes driver way larger */
+
+#define ARLAN_MAX_MULTICAST_ADDRS 16
+#define ARLAN_RCV_CLEAN 0
+#define ARLAN_RCV_PROMISC 1
+#define ARLAN_RCV_CONTROL 2
+
+#ifdef CONFIG_PROC_FS
+extern int init_arlan_proc(void);
+extern void cleanup_arlan_proc(void);
+#else
+#define init_arlan_proc() ({ 0; })
+#define cleanup_arlan_proc() do { } while (0)
+#endif
+
+extern struct net_device *arlan_device[MAX_ARLANS];
+extern int arlan_debug;
+extern int arlan_entry_debug;
+extern int arlan_exit_debug;
+extern int testMemory;
+extern int arlan_command(struct net_device * dev, int command);
+
+#define SIDUNKNOWN -1
+#define radioNodeIdUNKNOWN -1
+#define irqUNKNOWN 0
+#define debugUNKNOWN 0
+#define testMemoryUNKNOWN 1
+#define spreadingCodeUNKNOWN 0
+#define channelNumberUNKNOWN 0
+#define channelSetUNKNOWN 0
+#define systemIdUNKNOWN -1
+#define registrationModeUNKNOWN -1
+
+
+#define IFDEBUG( L ) if ( (L) & arlan_debug )
+#define ARLAN_FAKE_HDR_LEN 12
+
+#ifdef ARLAN_DEBUGGING
+ #define DEBUG 1
+ #define ARLAN_ENTRY_EXIT_DEBUGGING 1
+ #define ARLAN_DEBUG(a,b) printk(KERN_DEBUG a, b)
+#else
+ #define ARLAN_DEBUG(a,b)
+#endif
+
+#define ARLAN_SHMEM_SIZE 0x2000
+
+struct arlan_shmem
+{
+ /* Header Signature */
+ volatile char textRegion[48];
+ volatile u_char resetFlag;
+ volatile u_char diagnosticInfo;
+ volatile u_short diagnosticOffset;
+ volatile u_char _1[12];
+ volatile u_char lanCardNodeId[6];
+ volatile u_char broadcastAddress[6];
+ volatile u_char hardwareType;
+ volatile u_char majorHardwareVersion;
+ volatile u_char minorHardwareVersion;
+ volatile u_char radioModule;// shows EEPROM, can be overridden at 0x111
+ volatile u_char defaultChannelSet; // shows EEProm, can be overriiden at 0x10A
+ volatile u_char _2[47];
+
+ /* Control/Status Block - 0x0080 */
+ volatile u_char interruptInProgress; /* not used by lancpu */
+ volatile u_char cntrlRegImage; /* not used by lancpu */
+ volatile u_char _3[13];
+ volatile u_char dumpByte;
+ volatile u_char commandByte; /* non-zero = active */
+ volatile u_char commandParameter[15];
+
+ /* Receive Status - 0x00a0 */
+ volatile u_char rxStatus; /* 1- data, 2-control, 0xff - registr change */
+ volatile u_char rxFrmType;
+ volatile u_short rxOffset;
+ volatile u_short rxLength;
+ volatile u_char rxSrc[6];
+ volatile u_char rxBroadcastFlag;
+ volatile u_char rxQuality;
+ volatile u_char scrambled;
+ volatile u_char _4[1];
+
+ /* Transmit Status - 0x00b0 */
+ volatile u_char txStatus;
+ volatile u_char txAckQuality;
+ volatile u_char numRetries;
+ volatile u_char _5[14];
+ volatile u_char registeredRouter[6];
+ volatile u_char backboneRouter[6];
+ volatile u_char registrationStatus;
+ volatile u_char configuredStatusFlag;
+ volatile u_char _6[1];
+ volatile u_char ultimateDestAddress[6];
+ volatile u_char immedDestAddress[6];
+ volatile u_char immedSrcAddress[6];
+ volatile u_short rxSequenceNumber;
+ volatile u_char assignedLocaltalkAddress;
+ volatile u_char _7[27];
+
+ /* System Parameter Block */
+
+ /* - Driver Parameters (Novell Specific) */
+
+ volatile u_short txTimeout;
+ volatile u_short transportTime;
+ volatile u_char _8[4];
+
+ /* - Configuration Parameters */
+ volatile u_char irqLevel;
+ volatile u_char spreadingCode;
+ volatile u_char channelSet;
+ volatile u_char channelNumber;
+ volatile u_short radioNodeId;
+ volatile u_char _9[2];
+ volatile u_char scramblingDisable;
+ volatile u_char radioType;
+ volatile u_short routerId;
+ volatile u_char _10[9];
+ volatile u_char txAttenuation;
+ volatile u_char systemId[4];
+ volatile u_short globalChecksum;
+ volatile u_char _11[4];
+ volatile u_short maxDatagramSize;
+ volatile u_short maxFrameSize;
+ volatile u_char maxRetries;
+ volatile u_char receiveMode;
+ volatile u_char priority;
+ volatile u_char rootOrRepeater;
+ volatile u_char specifiedRouter[6];
+ volatile u_short fastPollPeriod;
+ volatile u_char pollDecay;
+ volatile u_char fastPollDelay[2];
+ volatile u_char arlThreshold;
+ volatile u_char arlDecay;
+ volatile u_char _12[1];
+ volatile u_short specRouterTimeout;
+ volatile u_char _13[5];
+
+ /* Scrambled Area */
+ volatile u_char SID[4];
+ volatile u_char encryptionKey[12];
+ volatile u_char _14[2];
+ volatile u_char waitTime[2];
+ volatile u_char lParameter[2];
+ volatile u_char _15[3];
+ volatile u_short headerSize;
+ volatile u_short sectionChecksum;
+
+ volatile u_char registrationMode;
+ volatile u_char registrationFill;
+ volatile u_short pollPeriod;
+ volatile u_short refreshPeriod;
+ volatile u_char name[16];
+ volatile u_char NID[6];
+ volatile u_char localTalkAddress;
+ volatile u_char codeFormat;
+ volatile u_char numChannels;
+ volatile u_char channel1;
+ volatile u_char channel2;
+ volatile u_char channel3;
+ volatile u_char channel4;
+ volatile u_char SSCode[59];
+
+ volatile u_char _16[0xC0];
+ volatile u_short auxCmd;
+ volatile u_char dumpPtr[4];
+ volatile u_char dumpVal;
+ volatile u_char _17[0x6A];
+ volatile u_char wireTest;
+ volatile u_char _18[14];
+
+ /* Statistics Block - 0x0300 */
+ volatile u_char hostcpuLock;
+ volatile u_char lancpuLock;
+ volatile u_char resetTime[18];
+
+ volatile u_char numDatagramsTransmitted[4];
+ volatile u_char numReTransmissions[4];
+ volatile u_char numFramesDiscarded[4];
+ volatile u_char numDatagramsReceived[4];
+ volatile u_char numDuplicateReceivedFrames[4];
+ volatile u_char numDatagramsDiscarded[4];
+
+ volatile u_short maxNumReTransmitDatagram;
+ volatile u_short maxNumReTransmitFrames;
+ volatile u_short maxNumConsecutiveDuplicateFrames;
+ /* misaligned here so we have to go to characters */
+
+ volatile u_char numBytesTransmitted[4];
+ volatile u_char numBytesReceived[4];
+ volatile u_char numCRCErrors[4];
+ volatile u_char numLengthErrors[4];
+ volatile u_char numAbortErrors[4];
+ volatile u_char numTXUnderruns[4];
+ volatile u_char numRXOverruns[4];
+ volatile u_char numHoldOffs[4];
+ volatile u_char numFramesTransmitted[4];
+ volatile u_char numFramesReceived[4];
+ volatile u_char numReceiveFramesLost[4];
+ volatile u_char numRXBufferOverflows[4];
+ volatile u_char numFramesDiscardedAddrMismatch[4];
+ volatile u_char numFramesDiscardedSIDMismatch[4];
+ volatile u_char numPollsTransmistted[4];
+ volatile u_char numPollAcknowledges[4];
+ volatile u_char numStatusTimeouts[4];
+ volatile u_char numNACKReceived[4];
+
+ volatile u_char _19[0x86];
+
+ volatile u_char txBuffer[0x800];
+ volatile u_char rxBuffer[0x800];
+
+ volatile u_char _20[0x800];
+ volatile u_char _21[0x3fb];
+ volatile u_char configStatus;
+ volatile u_char _22;
+ volatile u_char progIOCtrl;
+ volatile u_char shareMBase;
+ volatile u_char controlRegister;
+};
+
+struct arlan_conf_stru {
+ int spreadingCode;
+ int channelSet;
+ int channelNumber;
+ int scramblingDisable;
+ int txAttenuation;
+ int systemId;
+ int maxDatagramSize;
+ int maxFrameSize;
+ int maxRetries;
+ int receiveMode;
+ int priority;
+ int rootOrRepeater;
+ int SID;
+ int radioNodeId;
+ int registrationMode;
+ int registrationFill;
+ int localTalkAddress;
+ int codeFormat;
+ int numChannels;
+ int channel1;
+ int channel2;
+ int channel3;
+ int channel4;
+ int txClear;
+ int txRetries;
+ int txRouting;
+ int txScrambled;
+ int rxParameter;
+ int txTimeoutMs;
+ int txAckTimeoutMs;
+ int waitCardTimeout;
+ int waitTime;
+ int lParameter;
+ int _15;
+ int headerSize;
+ int retries;
+ int tx_delay_ms;
+ int waitReTransmitPacketMaxSize;
+ int ReTransmitPacketMaxSize;
+ int fastReTransCount;
+ int driverRetransmissions;
+ int registrationInterrupts;
+ int hardwareType;
+ int radioType;
+ int writeRadioType;
+ int writeEEPROM;
+ char siteName[17];
+ int measure_rate;
+ int in_speed;
+ int out_speed;
+ int in_speed10;
+ int out_speed10;
+ int in_speed_max;
+ int out_speed_max;
+ int pre_Command_Wait;
+ int rx_tweak1;
+ int rx_tweak2;
+ int tx_queue_len;
+};
+
+extern struct arlan_conf_stru arlan_conf[MAX_ARLANS];
+
+struct TxParam
+{
+ volatile short offset;
+ volatile short length;
+ volatile u_char dest[6];
+ volatile unsigned char clear;
+ volatile unsigned char retries;
+ volatile unsigned char routing;
+ volatile unsigned char scrambled;
+};
+
+#define TX_RING_SIZE 2
+/* Information that need to be kept for each board. */
+struct arlan_private {
+ struct arlan_shmem __iomem * card;
+ struct arlan_shmem * conf;
+
+ struct arlan_conf_stru * Conf;
+ int bad;
+ int reset;
+ unsigned long lastReset;
+ struct timer_list timer;
+ struct timer_list tx_delay_timer;
+ struct timer_list tx_retry_timer;
+ struct timer_list rx_check_timer;
+
+ int registrationLostCount;
+ int reRegisterExp;
+ int irq_test_done;
+
+ struct TxParam txRing[TX_RING_SIZE];
+ char reTransmitBuff[0x800];
+ int txLast;
+ unsigned ReTransmitRequested;
+ unsigned long tx_done_delayed;
+ unsigned long registrationLastSeen;
+
+ unsigned long tx_last_sent;
+ unsigned long tx_last_cleared;
+ unsigned long retransmissions;
+ unsigned long interrupt_ack_requested;
+ spinlock_t lock;
+ unsigned long waiting_command_mask;
+ unsigned long card_polling_interval;
+ unsigned long last_command_buff_free_time;
+
+ int under_reset;
+ int under_config;
+ int rx_command_given;
+ int tx_command_given;
+ unsigned long interrupt_processing_active;
+ unsigned long last_rx_int_ack_time;
+ unsigned long in_bytes;
+ unsigned long out_bytes;
+ unsigned long in_time;
+ unsigned long out_time;
+ unsigned long in_time10;
+ unsigned long out_time10;
+ unsigned long in_bytes10;
+ unsigned long out_bytes10;
+ int init_etherdev_alloc;
+};
+
+
+
+#define ARLAN_CLEAR 0x00
+#define ARLAN_RESET 0x01
+#define ARLAN_CHANNEL_ATTENTION 0x02
+#define ARLAN_INTERRUPT_ENABLE 0x04
+#define ARLAN_CLEAR_INTERRUPT 0x08
+#define ARLAN_POWER 0x40
+#define ARLAN_ACCESS 0x80
+
+#define ARLAN_COM_CONF 0x01
+#define ARLAN_COM_RX_ENABLE 0x03
+#define ARLAN_COM_RX_ABORT 0x04
+#define ARLAN_COM_TX_ENABLE 0x05
+#define ARLAN_COM_TX_ABORT 0x06
+#define ARLAN_COM_NOP 0x07
+#define ARLAN_COM_STANDBY 0x08
+#define ARLAN_COM_ACTIVATE 0x09
+#define ARLAN_COM_GOTO_SLOW_POLL 0x0a
+#define ARLAN_COM_INT 0x80
+
+
+#define TXLAST(dev) (((struct arlan_private *)netdev_priv(dev))->txRing[((struct arlan_private *)netdev_priv(dev))->txLast])
+#define TXHEAD(dev) (((struct arlan_private *)netdev_priv(dev))->txRing[0])
+#define TXTAIL(dev) (((struct arlan_private *)netdev_priv(dev))->txRing[1])
+
+#define TXBuffStart(dev) offsetof(struct arlan_shmem, txBuffer)
+#define TXBuffEnd(dev) offsetof(struct arlan_shmem, xxBuffer)
+
+#define READSHM(to,from,atype) {\
+ atype tmp;\
+ memcpy_fromio(&(tmp),&(from),sizeof(atype));\
+ to = tmp;\
+ }
+
+#define READSHMEM(from,atype)\
+ atype from; \
+ READSHM(from, arlan->from, atype);
+
+#define WRITESHM(to,from,atype) \
+ { atype tmpSHM = from;\
+ memcpy_toio(&(to),&tmpSHM,sizeof(atype));\
+ }
+
+#define DEBUGSHM(levelSHM,stringSHM,stuff,atype) \
+ { atype tmpSHM; \
+ memcpy_fromio(&tmpSHM,&(stuff),sizeof(atype));\
+ IFDEBUG(levelSHM) printk(stringSHM,tmpSHM);\
+ }
+
+#define WRITESHMB(to, val) \
+ writeb(val,&(to))
+#define READSHMB(to) \
+ readb(&(to))
+#define WRITESHMS(to, val) \
+ writew(val,&(to))
+#define READSHMS(to) \
+ readw(&(to))
+#define WRITESHMI(to, val) \
+ writel(val,&(to))
+#define READSHMI(to) \
+ readl(&(to))
+
+
+
+
+
+#define registrationBad(dev)\
+ ( ( READSHMB(((struct arlan_private *)netdev_priv(dev))->card->registrationMode) > 0) && \
+ ( READSHMB(((struct arlan_private *)netdev_priv(dev))->card->registrationStatus) == 0) )
+
+
+#define readControlRegister(dev)\
+ READSHMB(((struct arlan_private *)netdev_priv(dev))->card->cntrlRegImage)
+
+#define writeControlRegister(dev, v){\
+ WRITESHMB(((struct arlan_private *)netdev_priv(dev))->card->cntrlRegImage ,((v) &0xF) );\
+ WRITESHMB(((struct arlan_private *)netdev_priv(dev))->card->controlRegister ,(v) );}
+
+
+#define arlan_interrupt_lancpu(dev) {\
+ int cr; \
+ \
+ cr = readControlRegister(dev);\
+ if (cr & ARLAN_CHANNEL_ATTENTION){ \
+ writeControlRegister(dev, (cr & ~ARLAN_CHANNEL_ATTENTION));\
+ }else \
+ writeControlRegister(dev, (cr | ARLAN_CHANNEL_ATTENTION));\
+}
+
+#define clearChannelAttention(dev){ \
+ writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_CHANNEL_ATTENTION);}
+#define setHardwareReset(dev) {\
+ writeControlRegister(dev,readControlRegister(dev) | ARLAN_RESET);}
+#define clearHardwareReset(dev) {\
+ writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_RESET);}
+#define setInterruptEnable(dev){\
+ writeControlRegister(dev,readControlRegister(dev) | ARLAN_INTERRUPT_ENABLE) ;}
+#define clearInterruptEnable(dev){\
+ writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_INTERRUPT_ENABLE) ;}
+#define setClearInterrupt(dev){\
+ writeControlRegister(dev,readControlRegister(dev) | ARLAN_CLEAR_INTERRUPT) ;}
+#define clearClearInterrupt(dev){\
+ writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_CLEAR_INTERRUPT);}
+#define setPowerOff(dev){\
+ writeControlRegister(dev,readControlRegister(dev) | (ARLAN_POWER && ARLAN_ACCESS));\
+ writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_ACCESS);}
+#define setPowerOn(dev){\
+ writeControlRegister(dev,readControlRegister(dev) & ~(ARLAN_POWER)); }
+#define arlan_lock_card_access(dev){\
+ writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_ACCESS);}
+#define arlan_unlock_card_access(dev){\
+ writeControlRegister(dev,readControlRegister(dev) | ARLAN_ACCESS ); }
+
+
+
+
+#define ARLAN_COMMAND_RX 0x000001
+#define ARLAN_COMMAND_NOOP 0x000002
+#define ARLAN_COMMAND_NOOPINT 0x000004
+#define ARLAN_COMMAND_TX 0x000008
+#define ARLAN_COMMAND_CONF 0x000010
+#define ARLAN_COMMAND_RESET 0x000020
+#define ARLAN_COMMAND_TX_ABORT 0x000040
+#define ARLAN_COMMAND_RX_ABORT 0x000080
+#define ARLAN_COMMAND_POWERDOWN 0x000100
+#define ARLAN_COMMAND_POWERUP 0x000200
+#define ARLAN_COMMAND_SLOW_POLL 0x000400
+#define ARLAN_COMMAND_ACTIVATE 0x000800
+#define ARLAN_COMMAND_INT_ACK 0x001000
+#define ARLAN_COMMAND_INT_ENABLE 0x002000
+#define ARLAN_COMMAND_WAIT_NOW 0x004000
+#define ARLAN_COMMAND_LONG_WAIT_NOW 0x008000
+#define ARLAN_COMMAND_STANDBY 0x010000
+#define ARLAN_COMMAND_INT_RACK 0x020000
+#define ARLAN_COMMAND_INT_RENABLE 0x040000
+#define ARLAN_COMMAND_CONF_WAIT 0x080000
+#define ARLAN_COMMAND_TBUSY_CLEAR 0x100000
+#define ARLAN_COMMAND_CLEAN_AND_CONF (ARLAN_COMMAND_TX_ABORT\
+ | ARLAN_COMMAND_RX_ABORT\
+ | ARLAN_COMMAND_CONF)
+#define ARLAN_COMMAND_CLEAN_AND_RESET (ARLAN_COMMAND_TX_ABORT\
+ | ARLAN_COMMAND_RX_ABORT\
+ | ARLAN_COMMAND_RESET)
+
+
+
+#define ARLAN_DEBUG_CHAIN_LOCKS 0x00001
+#define ARLAN_DEBUG_RESET 0x00002
+#define ARLAN_DEBUG_TIMING 0x00004
+#define ARLAN_DEBUG_CARD_STATE 0x00008
+#define ARLAN_DEBUG_TX_CHAIN 0x00010
+#define ARLAN_DEBUG_MULTICAST 0x00020
+#define ARLAN_DEBUG_HEADER_DUMP 0x00040
+#define ARLAN_DEBUG_INTERRUPT 0x00080
+#define ARLAN_DEBUG_STARTUP 0x00100
+#define ARLAN_DEBUG_SHUTDOWN 0x00200
+
--
1.6.2.5
^ permalink raw reply related [flat|nested] 33+ messages in thread
* [PATCH 4/4] netwave: move driver to staging
[not found] ` <1256015830-12700-3-git-send-email-linville@tuxdriver.com>
@ 2009-10-20 5:17 ` John W. Linville
2009-10-27 20:36 ` Staging: " Greg KH
0 siblings, 1 reply; 33+ messages in thread
From: John W. Linville @ 2009-10-20 5:17 UTC (permalink / raw)
To: linux-kernel; +Cc: gregkh, John W. Linville
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 95391 bytes --]
Move the netwave driver to drivers/staging. This is another pre-802.11
driver that has seen virtually no non-API-fixup activity in years, and
for which no active hardware is likely to still exist. This driver
represents unnecessary ongoing maintenance for no clear benefit.
This patch brought to you by the "hacking" session at the 2009 Kernel
Summit in Tokyo, Japan...
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/Kconfig | 65 +--
drivers/net/wireless/Makefile | 3 -
drivers/net/wireless/netwave_cs.c | 1389 ----------------------------------
drivers/staging/Kconfig | 2 +
drivers/staging/Makefile | 1 +
drivers/staging/netwave/Kconfig | 10 +
drivers/staging/netwave/Makefile | 1 +
drivers/staging/netwave/netwave_cs.c | 1389 ++++++++++++++++++++++++++++++++++
8 files changed, 1420 insertions(+), 1440 deletions(-)
delete mode 100644 drivers/net/wireless/netwave_cs.c
create mode 100644 drivers/staging/netwave/Kconfig
create mode 100644 drivers/staging/netwave/Makefile
create mode 100644 drivers/staging/netwave/netwave_cs.c
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index fc1eae1..18cadf0 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -7,47 +7,17 @@ menuconfig WLAN
depends on !S390
default y
---help---
- This section contains all the pre 802.11 and 802.11 wireless
- device drivers. For a complete list of drivers and documentation
+ This section contains all the 802.11 wireless LAN device
+ drivers. For a complete list of drivers and documentation
on them refer to the wireless wiki:
http://wireless.kernel.org/en/users/Drivers
if WLAN
-menuconfig WLAN_PRE80211
- bool "Wireless LAN (pre-802.11)"
- depends on NETDEVICES
- ---help---
- Say Y if you have any pre-802.11 wireless LAN hardware.
-
- This option does not affect the kernel build, it only
- lets you choose drivers.
-
-config PCMCIA_NETWAVE
- tristate "Xircom Netwave AirSurfer Pcmcia wireless support"
- depends on PCMCIA && WLAN_PRE80211
- select WIRELESS_EXT
- help
- Say Y here if you intend to attach this type of PCMCIA (PC-card)
- wireless Ethernet networking card to your computer.
-
- To compile this driver as a module, choose M here: the module will be
- called netwave_cs. If unsure, say N.
-
-
-menuconfig WLAN_80211
- bool "Wireless LAN (IEEE 802.11)"
- depends on NETDEVICES
- ---help---
- Say Y if you have any 802.11 wireless LAN hardware.
-
- This option does not affect the kernel build, it only
- lets you choose drivers.
-
config PCMCIA_RAYCS
tristate "Aviator/Raytheon 2.4GHz wireless support"
- depends on PCMCIA && WLAN_80211
+ depends on PCMCIA
select WIRELESS_EXT
---help---
Say Y here if you intend to attach an Aviator/Raytheon PCMCIA
@@ -60,7 +30,6 @@ config PCMCIA_RAYCS
config LIBERTAS
tristate "Marvell 8xxx Libertas WLAN driver support"
- depends on WLAN_80211
select WIRELESS_EXT
select LIB80211
select FW_LOADER
@@ -100,7 +69,7 @@ config LIBERTAS_DEBUG
config LIBERTAS_THINFIRM
tristate "Marvell 8xxx Libertas WLAN driver support with thin firmware"
- depends on WLAN_80211 && MAC80211
+ depends on MAC80211
select FW_LOADER
---help---
A library for Marvell Libertas 8xxx devices using thinfirm.
@@ -113,7 +82,7 @@ config LIBERTAS_THINFIRM_USB
config AIRO
tristate "Cisco/Aironet 34X/35X/4500/4800 ISA and PCI cards"
- depends on ISA_DMA_API && WLAN_80211 && (PCI || BROKEN)
+ depends on ISA_DMA_API && (PCI || BROKEN)
select WIRELESS_EXT
select CRYPTO
---help---
@@ -131,7 +100,7 @@ config AIRO
config ATMEL
tristate "Atmel at76c50x chipset 802.11b support"
- depends on (PCI || PCMCIA) && WLAN_80211
+ depends on (PCI || PCMCIA)
select WIRELESS_EXT
select FW_LOADER
select CRC32
@@ -165,7 +134,7 @@ config PCMCIA_ATMEL
config AT76C50X_USB
tristate "Atmel at76c503/at76c505/at76c505a USB cards"
- depends on MAC80211 && WLAN_80211 && USB
+ depends on MAC80211 && USB
select FW_LOADER
---help---
Enable support for USB Wireless devices using Atmel at76c503,
@@ -173,7 +142,7 @@ config AT76C50X_USB
config AIRO_CS
tristate "Cisco/Aironet 34X/35X/4500/4800 PCMCIA cards"
- depends on PCMCIA && (BROKEN || !M32R) && WLAN_80211
+ depends on PCMCIA && (BROKEN || !M32R)
select WIRELESS_EXT
select CRYPTO
select CRYPTO_AES
@@ -193,7 +162,7 @@ config AIRO_CS
config PCMCIA_WL3501
tristate "Planet WL3501 PCMCIA cards"
- depends on EXPERIMENTAL && PCMCIA && WLAN_80211
+ depends on EXPERIMENTAL && PCMCIA
select WIRELESS_EXT
---help---
A driver for WL3501 PCMCIA 802.11 wireless cards made by Planet.
@@ -202,7 +171,7 @@ config PCMCIA_WL3501
config PRISM54
tristate 'Intersil Prism GT/Duette/Indigo PCI/Cardbus (DEPRECATED)'
- depends on PCI && EXPERIMENTAL && WLAN_80211
+ depends on PCI && EXPERIMENTAL
select WIRELESS_EXT
select FW_LOADER
---help---
@@ -224,7 +193,7 @@ config PRISM54
config USB_ZD1201
tristate "USB ZD1201 based Wireless device support"
- depends on USB && WLAN_80211
+ depends on USB
select WIRELESS_EXT
select FW_LOADER
---help---
@@ -242,7 +211,7 @@ config USB_ZD1201
config USB_NET_RNDIS_WLAN
tristate "Wireless RNDIS USB support"
- depends on USB && WLAN_80211 && EXPERIMENTAL
+ depends on USB && EXPERIMENTAL
depends on CFG80211
select USB_USBNET
select USB_NET_CDCETHER
@@ -270,7 +239,7 @@ config USB_NET_RNDIS_WLAN
config RTL8180
tristate "Realtek 8180/8185 PCI support"
- depends on MAC80211 && PCI && WLAN_80211 && EXPERIMENTAL
+ depends on MAC80211 && PCI && EXPERIMENTAL
select EEPROM_93CX6
---help---
This is a driver for RTL8180 and RTL8185 based cards.
@@ -326,7 +295,7 @@ config RTL8180
config RTL8187
tristate "Realtek 8187 and 8187B USB support"
- depends on MAC80211 && USB && WLAN_80211
+ depends on MAC80211 && USB
select EEPROM_93CX6
---help---
This is a driver for RTL8187 and RTL8187B based cards.
@@ -355,7 +324,7 @@ config RTL8187_LEDS
config ADM8211
tristate "ADMtek ADM8211 support"
- depends on MAC80211 && PCI && WLAN_80211 && EXPERIMENTAL
+ depends on MAC80211 && PCI && EXPERIMENTAL
select CRC32
select EEPROM_93CX6
---help---
@@ -382,7 +351,7 @@ config ADM8211
config MAC80211_HWSIM
tristate "Simulated radio testing tool for mac80211"
- depends on MAC80211 && WLAN_80211
+ depends on MAC80211
---help---
This driver is a developer testing tool that can be used to test
IEEE 802.11 networking stack (mac80211) functionality. This is not
@@ -395,7 +364,7 @@ config MAC80211_HWSIM
config MWL8K
tristate "Marvell 88W8xxx PCI/PCIe Wireless support"
- depends on MAC80211 && PCI && WLAN_80211 && EXPERIMENTAL
+ depends on MAC80211 && PCI && EXPERIMENTAL
---help---
This driver supports Marvell TOPDOG 802.11 wireless cards.
diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
index f4a7c8a..5d4ce4d 100644
--- a/drivers/net/wireless/Makefile
+++ b/drivers/net/wireless/Makefile
@@ -5,9 +5,6 @@
obj-$(CONFIG_IPW2100) += ipw2x00/
obj-$(CONFIG_IPW2200) += ipw2x00/
-# Obsolete cards
-obj-$(CONFIG_PCMCIA_NETWAVE) += netwave_cs.o
-
obj-$(CONFIG_HERMES) += orinoco/
obj-$(CONFIG_AIRO) += airo.o
diff --git a/drivers/net/wireless/netwave_cs.c b/drivers/net/wireless/netwave_cs.c
deleted file mode 100644
index 9498b46..0000000
--- a/drivers/net/wireless/netwave_cs.c
+++ /dev/null
@@ -1,1389 +0,0 @@
-/*********************************************************************
- *
- * Filename: netwave_cs.c
- * Version: 0.4.1
- * Description: Netwave AirSurfer Wireless LAN PC Card driver
- * Status: Experimental.
- * Authors: John Markus Bjørndalen <johnm@cs.uit.no>
- * Dag Brattli <dagb@cs.uit.no>
- * David Hinds <dahinds@users.sourceforge.net>
- * Created at: A long time ago!
- * Modified at: Mon Nov 10 11:54:37 1997
- * Modified by: Dag Brattli <dagb@cs.uit.no>
- *
- * Copyright (c) 1997 University of Tromsø, Norway
- *
- * Revision History:
- *
- * 08-Nov-97 15:14:47 John Markus Bjørndalen <johnm@cs.uit.no>
- * - Fixed some bugs in netwave_rx and cleaned it up a bit.
- * (One of the bugs would have destroyed packets when receiving
- * multiple packets per interrupt).
- * - Cleaned up parts of newave_hw_xmit.
- * - A few general cleanups.
- * 24-Oct-97 13:17:36 Dag Brattli <dagb@cs.uit.no>
- * - Fixed netwave_rx receive function (got updated docs)
- * Others:
- * - Changed name from xircnw to netwave, take a look at
- * http://www.netwave-wireless.com
- * - Some reorganizing of the code
- * - Removed possible race condition between interrupt handler and transmit
- * function
- * - Started to add wireless extensions, but still needs some coding
- * - Added watchdog for better handling of transmission timeouts
- * (hopefully this works better)
- ********************************************************************/
-
-/* To have statistics (just packets sent) define this */
-#undef NETWAVE_STATS
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/fcntl.h>
-#include <linux/interrupt.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/in.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/errno.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/bitops.h>
-#include <linux/wireless.h>
-#include <net/iw_handler.h>
-
-#include <pcmcia/cs_types.h>
-#include <pcmcia/cs.h>
-#include <pcmcia/cistpl.h>
-#include <pcmcia/cisreg.h>
-#include <pcmcia/ds.h>
-#include <pcmcia/mem_op.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-
-#define NETWAVE_REGOFF 0x8000
-/* The Netwave IO registers, offsets to iobase */
-#define NETWAVE_REG_COR 0x0
-#define NETWAVE_REG_CCSR 0x2
-#define NETWAVE_REG_ASR 0x4
-#define NETWAVE_REG_IMR 0xa
-#define NETWAVE_REG_PMR 0xc
-#define NETWAVE_REG_IOLOW 0x6
-#define NETWAVE_REG_IOHI 0x7
-#define NETWAVE_REG_IOCONTROL 0x8
-#define NETWAVE_REG_DATA 0xf
-/* The Netwave Extended IO registers, offsets to RamBase */
-#define NETWAVE_EREG_ASCC 0x114
-#define NETWAVE_EREG_RSER 0x120
-#define NETWAVE_EREG_RSERW 0x124
-#define NETWAVE_EREG_TSER 0x130
-#define NETWAVE_EREG_TSERW 0x134
-#define NETWAVE_EREG_CB 0x100
-#define NETWAVE_EREG_SPCQ 0x154
-#define NETWAVE_EREG_SPU 0x155
-#define NETWAVE_EREG_LIF 0x14e
-#define NETWAVE_EREG_ISPLQ 0x156
-#define NETWAVE_EREG_HHC 0x158
-#define NETWAVE_EREG_NI 0x16e
-#define NETWAVE_EREG_MHS 0x16b
-#define NETWAVE_EREG_TDP 0x140
-#define NETWAVE_EREG_RDP 0x150
-#define NETWAVE_EREG_PA 0x160
-#define NETWAVE_EREG_EC 0x180
-#define NETWAVE_EREG_CRBP 0x17a
-#define NETWAVE_EREG_ARW 0x166
-
-/*
- * Commands used in the extended command buffer
- * NETWAVE_EREG_CB (0x100-0x10F)
- */
-#define NETWAVE_CMD_NOP 0x00
-#define NETWAVE_CMD_SRC 0x01
-#define NETWAVE_CMD_STC 0x02
-#define NETWAVE_CMD_AMA 0x03
-#define NETWAVE_CMD_DMA 0x04
-#define NETWAVE_CMD_SAMA 0x05
-#define NETWAVE_CMD_ER 0x06
-#define NETWAVE_CMD_DR 0x07
-#define NETWAVE_CMD_TL 0x08
-#define NETWAVE_CMD_SRP 0x09
-#define NETWAVE_CMD_SSK 0x0a
-#define NETWAVE_CMD_SMD 0x0b
-#define NETWAVE_CMD_SAPD 0x0c
-#define NETWAVE_CMD_SSS 0x11
-/* End of Command marker */
-#define NETWAVE_CMD_EOC 0x00
-
-/* ASR register bits */
-#define NETWAVE_ASR_RXRDY 0x80
-#define NETWAVE_ASR_TXBA 0x01
-
-#define TX_TIMEOUT ((32*HZ)/100)
-
-static const unsigned int imrConfRFU1 = 0x10; /* RFU interrupt mask, keep high */
-static const unsigned int imrConfIENA = 0x02; /* Interrupt enable */
-
-static const unsigned int corConfIENA = 0x01; /* Interrupt enable */
-static const unsigned int corConfLVLREQ = 0x40; /* Keep high */
-
-static const unsigned int rxConfRxEna = 0x80; /* Receive Enable */
-static const unsigned int rxConfMAC = 0x20; /* MAC host receive mode*/
-static const unsigned int rxConfPro = 0x10; /* Promiscuous */
-static const unsigned int rxConfAMP = 0x08; /* Accept Multicast Packets */
-static const unsigned int rxConfBcast = 0x04; /* Accept Broadcast Packets */
-
-static const unsigned int txConfTxEna = 0x80; /* Transmit Enable */
-static const unsigned int txConfMAC = 0x20; /* Host sends MAC mode */
-static const unsigned int txConfEUD = 0x10; /* Enable Uni-Data packets */
-static const unsigned int txConfKey = 0x02; /* Scramble data packets */
-static const unsigned int txConfLoop = 0x01; /* Loopback mode */
-
-/*
- All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
- you do not define PCMCIA_DEBUG at all, all the debug code will be
- left out. If you compile with PCMCIA_DEBUG=0, the debug code will
- be present but disabled -- but it can then be enabled for specific
- modules at load time with a 'pc_debug=#' option to insmod.
-*/
-
-#ifdef PCMCIA_DEBUG
-static int pc_debug = PCMCIA_DEBUG;
-module_param(pc_debug, int, 0);
-#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
-static char *version =
-"netwave_cs.c 0.3.0 Thu Jul 17 14:36:02 1997 (John Markus Bjørndalen)\n";
-#else
-#define DEBUG(n, args...)
-#endif
-
-/*====================================================================*/
-
-/* Parameters that can be set with 'insmod' */
-
-/* Choose the domain, default is 0x100 */
-static u_int domain = 0x100;
-
-/* Scramble key, range from 0x0 to 0xffff.
- * 0x0 is no scrambling.
- */
-static u_int scramble_key = 0x0;
-
-/* Shared memory speed, in ns. The documentation states that
- * the card should not be read faster than every 400ns.
- * This timing should be provided by the HBA. If it becomes a
- * problem, try setting mem_speed to 400.
- */
-static int mem_speed;
-
-module_param(domain, int, 0);
-module_param(scramble_key, int, 0);
-module_param(mem_speed, int, 0);
-
-/*====================================================================*/
-
-/* PCMCIA (Card Services) related functions */
-static void netwave_release(struct pcmcia_device *link); /* Card removal */
-static int netwave_pcmcia_config(struct pcmcia_device *arg); /* Runs after card
- insertion */
-static void netwave_detach(struct pcmcia_device *p_dev); /* Destroy instance */
-
-/* Hardware configuration */
-static void netwave_doreset(unsigned int iobase, u_char __iomem *ramBase);
-static void netwave_reset(struct net_device *dev);
-
-/* Misc device stuff */
-static int netwave_open(struct net_device *dev); /* Open the device */
-static int netwave_close(struct net_device *dev); /* Close the device */
-
-/* Packet transmission and Packet reception */
-static netdev_tx_t netwave_start_xmit( struct sk_buff *skb,
- struct net_device *dev);
-static int netwave_rx( struct net_device *dev);
-
-/* Interrupt routines */
-static irqreturn_t netwave_interrupt(int irq, void *dev_id);
-static void netwave_watchdog(struct net_device *);
-
-/* Wireless extensions */
-static struct iw_statistics* netwave_get_wireless_stats(struct net_device *dev);
-
-static void set_multicast_list(struct net_device *dev);
-
-/*
- A struct pcmcia_device structure has fields for most things that are needed
- to keep track of a socket, but there will usually be some device
- specific information that also needs to be kept track of. The
- 'priv' pointer in a struct pcmcia_device structure can be used to point to
- a device-specific private data structure, like this.
-
- A driver needs to provide a dev_node_t structure for each device
- on a card. In some cases, there is only one device per card (for
- example, ethernet cards, modems). In other cases, there may be
- many actual or logical devices (SCSI adapters, memory cards with
- multiple partitions). The dev_node_t structures need to be kept
- in a linked list starting at the 'dev' field of a struct pcmcia_device
- structure. We allocate them in the card's private data structure,
- because they generally can't be allocated dynamically.
-*/
-
-static const struct iw_handler_def netwave_handler_def;
-
-#define SIOCGIPSNAP SIOCIWFIRSTPRIV + 1 /* Site Survey Snapshot */
-
-#define MAX_ESA 10
-
-typedef struct net_addr {
- u_char addr48[6];
-} net_addr;
-
-struct site_survey {
- u_short length;
- u_char struct_revision;
- u_char roaming_state;
-
- u_char sp_existsFlag;
- u_char sp_link_quality;
- u_char sp_max_link_quality;
- u_char linkQualityGoodFairBoundary;
- u_char linkQualityFairPoorBoundary;
- u_char sp_utilization;
- u_char sp_goodness;
- u_char sp_hotheadcount;
- u_char roaming_condition;
-
- net_addr sp;
- u_char numAPs;
- net_addr nearByAccessPoints[MAX_ESA];
-};
-
-typedef struct netwave_private {
- struct pcmcia_device *p_dev;
- spinlock_t spinlock; /* Serialize access to the hardware (SMP) */
- dev_node_t node;
- u_char __iomem *ramBase;
- int timeoutCounter;
- int lastExec;
- struct timer_list watchdog; /* To avoid blocking state */
- struct site_survey nss;
- struct iw_statistics iw_stats; /* Wireless stats */
-} netwave_private;
-
-/*
- * The Netwave card is little-endian, so won't work for big endian
- * systems.
- */
-static inline unsigned short get_uint16(u_char __iomem *staddr)
-{
- return readw(staddr); /* Return only 16 bits */
-}
-
-static inline short get_int16(u_char __iomem * staddr)
-{
- return readw(staddr);
-}
-
-/*
- * Wait until the WOC (Write Operation Complete) bit in the
- * ASR (Adapter Status Register) is asserted.
- * This should have aborted if it takes too long time.
- */
-static inline void wait_WOC(unsigned int iobase)
-{
- /* Spin lock */
- while ((inb(iobase + NETWAVE_REG_ASR) & 0x8) != 0x8) ;
-}
-
-static void netwave_snapshot(netwave_private *priv, u_char __iomem *ramBase,
- unsigned int iobase) {
- u_short resultBuffer;
-
- /* if time since last snapshot is > 1 sec. (100 jiffies?) then take
- * new snapshot, else return cached data. This is the recommended rate.
- */
- if ( jiffies - priv->lastExec > 100) {
- /* Take site survey snapshot */
- /*printk( KERN_DEBUG "Taking new snapshot. %ld\n", jiffies -
- priv->lastExec); */
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_SSS, ramBase + NETWAVE_EREG_CB + 0);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
- wait_WOC(iobase);
-
- /* Get result and copy to cach */
- resultBuffer = readw(ramBase + NETWAVE_EREG_CRBP);
- copy_from_pc( &priv->nss, ramBase+resultBuffer,
- sizeof(struct site_survey));
- }
-}
-
-/*
- * Function netwave_get_wireless_stats (dev)
- *
- * Wireless extensions statistics
- *
- */
-static struct iw_statistics *netwave_get_wireless_stats(struct net_device *dev)
-{
- unsigned long flags;
- unsigned int iobase = dev->base_addr;
- netwave_private *priv = netdev_priv(dev);
- u_char __iomem *ramBase = priv->ramBase;
- struct iw_statistics* wstats;
-
- wstats = &priv->iw_stats;
-
- spin_lock_irqsave(&priv->spinlock, flags);
-
- netwave_snapshot( priv, ramBase, iobase);
-
- wstats->status = priv->nss.roaming_state;
- wstats->qual.qual = readb( ramBase + NETWAVE_EREG_SPCQ);
- wstats->qual.level = readb( ramBase + NETWAVE_EREG_ISPLQ);
- wstats->qual.noise = readb( ramBase + NETWAVE_EREG_SPU) & 0x3f;
- wstats->discard.nwid = 0L;
- wstats->discard.code = 0L;
- wstats->discard.misc = 0L;
-
- spin_unlock_irqrestore(&priv->spinlock, flags);
-
- return &priv->iw_stats;
-}
-
-static const struct net_device_ops netwave_netdev_ops = {
- .ndo_open = netwave_open,
- .ndo_stop = netwave_close,
- .ndo_start_xmit = netwave_start_xmit,
- .ndo_set_multicast_list = set_multicast_list,
- .ndo_tx_timeout = netwave_watchdog,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-/*
- * Function netwave_attach (void)
- *
- * Creates an "instance" of the driver, allocating local data
- * structures for one device. The device is registered with Card
- * Services.
- *
- * The dev_link structure is initialized, but we don't actually
- * configure the card at this point -- we wait until we receive a
- * card insertion event.
- */
-static int netwave_probe(struct pcmcia_device *link)
-{
- struct net_device *dev;
- netwave_private *priv;
-
- DEBUG(0, "netwave_attach()\n");
-
- /* Initialize the struct pcmcia_device structure */
- dev = alloc_etherdev(sizeof(netwave_private));
- if (!dev)
- return -ENOMEM;
- priv = netdev_priv(dev);
- priv->p_dev = link;
- link->priv = dev;
-
- /* The io structure describes IO port mapping */
- link->io.NumPorts1 = 16;
- link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
- /* link->io.NumPorts2 = 16;
- link->io.Attributes2 = IO_DATA_PATH_WIDTH_16; */
- link->io.IOAddrLines = 5;
-
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
- link->irq.IRQInfo1 = IRQ_LEVEL_ID;
- link->irq.Handler = &netwave_interrupt;
-
- /* General socket configuration */
- link->conf.Attributes = CONF_ENABLE_IRQ;
- link->conf.IntType = INT_MEMORY_AND_IO;
- link->conf.ConfigIndex = 1;
-
- /* Netwave private struct init. link/dev/node already taken care of,
- * other stuff zero'd - Jean II */
- spin_lock_init(&priv->spinlock);
-
- /* Netwave specific entries in the device structure */
- dev->netdev_ops = &netwave_netdev_ops;
- /* wireless extensions */
- dev->wireless_handlers = &netwave_handler_def;
-
- dev->watchdog_timeo = TX_TIMEOUT;
-
- link->irq.Instance = dev;
-
- return netwave_pcmcia_config( link);
-} /* netwave_attach */
-
-/*
- * Function netwave_detach (link)
- *
- * This deletes a driver "instance". The device is de-registered
- * with Card Services. If it has been released, all local data
- * structures are freed. Otherwise, the structures will be freed
- * when the device is released.
- */
-static void netwave_detach(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
-
- DEBUG(0, "netwave_detach(0x%p)\n", link);
-
- netwave_release(link);
-
- if (link->dev_node)
- unregister_netdev(dev);
-
- free_netdev(dev);
-} /* netwave_detach */
-
-/*
- * Wireless Handler : get protocol name
- */
-static int netwave_get_name(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra)
-{
- strcpy(wrqu->name, "Netwave");
- return 0;
-}
-
-/*
- * Wireless Handler : set Network ID
- */
-static int netwave_set_nwid(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra)
-{
- unsigned long flags;
- unsigned int iobase = dev->base_addr;
- netwave_private *priv = netdev_priv(dev);
- u_char __iomem *ramBase = priv->ramBase;
-
- /* Disable interrupts & save flags */
- spin_lock_irqsave(&priv->spinlock, flags);
-
- if(!wrqu->nwid.disabled) {
- domain = wrqu->nwid.value;
- printk( KERN_DEBUG "Setting domain to 0x%x%02x\n",
- (domain >> 8) & 0x01, domain & 0xff);
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0);
- writeb( domain & 0xff, ramBase + NETWAVE_EREG_CB + 1);
- writeb((domain >>8 ) & 0x01,ramBase + NETWAVE_EREG_CB+2);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
- }
-
- /* ReEnable interrupts & restore flags */
- spin_unlock_irqrestore(&priv->spinlock, flags);
-
- return 0;
-}
-
-/*
- * Wireless Handler : get Network ID
- */
-static int netwave_get_nwid(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra)
-{
- wrqu->nwid.value = domain;
- wrqu->nwid.disabled = 0;
- wrqu->nwid.fixed = 1;
- return 0;
-}
-
-/*
- * Wireless Handler : set scramble key
- */
-static int netwave_set_scramble(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *key)
-{
- unsigned long flags;
- unsigned int iobase = dev->base_addr;
- netwave_private *priv = netdev_priv(dev);
- u_char __iomem *ramBase = priv->ramBase;
-
- /* Disable interrupts & save flags */
- spin_lock_irqsave(&priv->spinlock, flags);
-
- scramble_key = (key[0] << 8) | key[1];
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0);
- writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1);
- writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
-
- /* ReEnable interrupts & restore flags */
- spin_unlock_irqrestore(&priv->spinlock, flags);
-
- return 0;
-}
-
-/*
- * Wireless Handler : get scramble key
- */
-static int netwave_get_scramble(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *key)
-{
- key[1] = scramble_key & 0xff;
- key[0] = (scramble_key>>8) & 0xff;
- wrqu->encoding.flags = IW_ENCODE_ENABLED;
- wrqu->encoding.length = 2;
- return 0;
-}
-
-/*
- * Wireless Handler : get mode
- */
-static int netwave_get_mode(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra)
-{
- if(domain & 0x100)
- wrqu->mode = IW_MODE_INFRA;
- else
- wrqu->mode = IW_MODE_ADHOC;
-
- return 0;
-}
-
-/*
- * Wireless Handler : get range info
- */
-static int netwave_get_range(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra)
-{
- struct iw_range *range = (struct iw_range *) extra;
- int ret = 0;
-
- /* Set the length (very important for backward compatibility) */
- wrqu->data.length = sizeof(struct iw_range);
-
- /* Set all the info we don't care or don't know about to zero */
- memset(range, 0, sizeof(struct iw_range));
-
- /* Set the Wireless Extension versions */
- range->we_version_compiled = WIRELESS_EXT;
- range->we_version_source = 9; /* Nothing for us in v10 and v11 */
-
- /* Set information in the range struct */
- range->throughput = 450 * 1000; /* don't argue on this ! */
- range->min_nwid = 0x0000;
- range->max_nwid = 0x01FF;
-
- range->num_channels = range->num_frequency = 0;
-
- range->sensitivity = 0x3F;
- range->max_qual.qual = 255;
- range->max_qual.level = 255;
- range->max_qual.noise = 0;
-
- range->num_bitrates = 1;
- range->bitrate[0] = 1000000; /* 1 Mb/s */
-
- range->encoding_size[0] = 2; /* 16 bits scrambling */
- range->num_encoding_sizes = 1;
- range->max_encoding_tokens = 1; /* Only one key possible */
-
- return ret;
-}
-
-/*
- * Wireless Private Handler : get snapshot
- */
-static int netwave_get_snap(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu,
- char *extra)
-{
- unsigned long flags;
- unsigned int iobase = dev->base_addr;
- netwave_private *priv = netdev_priv(dev);
- u_char __iomem *ramBase = priv->ramBase;
-
- /* Disable interrupts & save flags */
- spin_lock_irqsave(&priv->spinlock, flags);
-
- /* Take snapshot of environment */
- netwave_snapshot( priv, ramBase, iobase);
- wrqu->data.length = priv->nss.length;
- memcpy(extra, (u_char *) &priv->nss, sizeof( struct site_survey));
-
- priv->lastExec = jiffies;
-
- /* ReEnable interrupts & restore flags */
- spin_unlock_irqrestore(&priv->spinlock, flags);
-
- return(0);
-}
-
-/*
- * Structures to export the Wireless Handlers
- * This is the stuff that are treated the wireless extensions (iwconfig)
- */
-
-static const struct iw_priv_args netwave_private_args[] = {
-/*{ cmd, set_args, get_args, name } */
- { SIOCGIPSNAP, 0,
- IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof(struct site_survey),
- "getsitesurvey" },
-};
-
-static const iw_handler netwave_handler[] =
-{
- NULL, /* SIOCSIWNAME */
- netwave_get_name, /* SIOCGIWNAME */
- netwave_set_nwid, /* SIOCSIWNWID */
- netwave_get_nwid, /* SIOCGIWNWID */
- NULL, /* SIOCSIWFREQ */
- NULL, /* SIOCGIWFREQ */
- NULL, /* SIOCSIWMODE */
- netwave_get_mode, /* SIOCGIWMODE */
- NULL, /* SIOCSIWSENS */
- NULL, /* SIOCGIWSENS */
- NULL, /* SIOCSIWRANGE */
- netwave_get_range, /* SIOCGIWRANGE */
- NULL, /* SIOCSIWPRIV */
- NULL, /* SIOCGIWPRIV */
- NULL, /* SIOCSIWSTATS */
- NULL, /* SIOCGIWSTATS */
- NULL, /* SIOCSIWSPY */
- NULL, /* SIOCGIWSPY */
- NULL, /* -- hole -- */
- NULL, /* -- hole -- */
- NULL, /* SIOCSIWAP */
- NULL, /* SIOCGIWAP */
- NULL, /* -- hole -- */
- NULL, /* SIOCGIWAPLIST */
- NULL, /* -- hole -- */
- NULL, /* -- hole -- */
- NULL, /* SIOCSIWESSID */
- NULL, /* SIOCGIWESSID */
- NULL, /* SIOCSIWNICKN */
- NULL, /* SIOCGIWNICKN */
- NULL, /* -- hole -- */
- NULL, /* -- hole -- */
- NULL, /* SIOCSIWRATE */
- NULL, /* SIOCGIWRATE */
- NULL, /* SIOCSIWRTS */
- NULL, /* SIOCGIWRTS */
- NULL, /* SIOCSIWFRAG */
- NULL, /* SIOCGIWFRAG */
- NULL, /* SIOCSIWTXPOW */
- NULL, /* SIOCGIWTXPOW */
- NULL, /* SIOCSIWRETRY */
- NULL, /* SIOCGIWRETRY */
- netwave_set_scramble, /* SIOCSIWENCODE */
- netwave_get_scramble, /* SIOCGIWENCODE */
-};
-
-static const iw_handler netwave_private_handler[] =
-{
- NULL, /* SIOCIWFIRSTPRIV */
- netwave_get_snap, /* SIOCIWFIRSTPRIV + 1 */
-};
-
-static const struct iw_handler_def netwave_handler_def =
-{
- .num_standard = ARRAY_SIZE(netwave_handler),
- .num_private = ARRAY_SIZE(netwave_private_handler),
- .num_private_args = ARRAY_SIZE(netwave_private_args),
- .standard = (iw_handler *) netwave_handler,
- .private = (iw_handler *) netwave_private_handler,
- .private_args = (struct iw_priv_args *) netwave_private_args,
- .get_wireless_stats = netwave_get_wireless_stats,
-};
-
-/*
- * Function netwave_pcmcia_config (link)
- *
- * netwave_pcmcia_config() is scheduled to run after a CARD_INSERTION
- * event is received, to configure the PCMCIA socket, and to make the
- * device available to the system.
- *
- */
-
-#define CS_CHECK(fn, ret) \
-do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
-
-static int netwave_pcmcia_config(struct pcmcia_device *link) {
- struct net_device *dev = link->priv;
- netwave_private *priv = netdev_priv(dev);
- int i, j, last_ret, last_fn;
- win_req_t req;
- memreq_t mem;
- u_char __iomem *ramBase = NULL;
-
- DEBUG(0, "netwave_pcmcia_config(0x%p)\n", link);
-
- /*
- * Try allocating IO ports. This tries a few fixed addresses.
- * If you want, you can also read the card's config table to
- * pick addresses -- see the serial driver for an example.
- */
- for (i = j = 0x0; j < 0x400; j += 0x20) {
- link->io.BasePort1 = j ^ 0x300;
- i = pcmcia_request_io(link, &link->io);
- if (i == 0)
- break;
- }
- if (i != 0) {
- cs_error(link, RequestIO, i);
- goto failed;
- }
-
- /*
- * Now allocate an interrupt line. Note that this does not
- * actually assign a handler to the interrupt.
- */
- CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
-
- /*
- * This actually configures the PCMCIA socket -- setting up
- * the I/O windows and the interrupt mapping.
- */
- CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
-
- /*
- * Allocate a 32K memory window. Note that the struct pcmcia_device
- * structure provides space for one window handle -- if your
- * device needs several windows, you'll need to keep track of
- * the handles in your private data structure, dev->priv.
- */
- DEBUG(1, "Setting mem speed of %d\n", mem_speed);
-
- req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
- req.Base = 0; req.Size = 0x8000;
- req.AccessSpeed = mem_speed;
- CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &link->win));
- mem.CardOffset = 0x20000; mem.Page = 0;
- CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
-
- /* Store base address of the common window frame */
- ramBase = ioremap(req.Base, 0x8000);
- priv->ramBase = ramBase;
-
- dev->irq = link->irq.AssignedIRQ;
- dev->base_addr = link->io.BasePort1;
- SET_NETDEV_DEV(dev, &handle_to_dev(link));
-
- if (register_netdev(dev) != 0) {
- printk(KERN_DEBUG "netwave_cs: register_netdev() failed\n");
- goto failed;
- }
-
- strcpy(priv->node.dev_name, dev->name);
- link->dev_node = &priv->node;
-
- /* Reset card before reading physical address */
- netwave_doreset(dev->base_addr, ramBase);
-
- /* Read the ethernet address and fill in the Netwave registers. */
- for (i = 0; i < 6; i++)
- dev->dev_addr[i] = readb(ramBase + NETWAVE_EREG_PA + i);
-
- printk(KERN_INFO "%s: Netwave: port %#3lx, irq %d, mem %lx, "
- "id %c%c, hw_addr %pM\n",
- dev->name, dev->base_addr, dev->irq,
- (u_long) ramBase,
- (int) readb(ramBase+NETWAVE_EREG_NI),
- (int) readb(ramBase+NETWAVE_EREG_NI+1),
- dev->dev_addr);
-
- /* get revision words */
- printk(KERN_DEBUG "Netwave_reset: revision %04x %04x\n",
- get_uint16(ramBase + NETWAVE_EREG_ARW),
- get_uint16(ramBase + NETWAVE_EREG_ARW+2));
- return 0;
-
-cs_failed:
- cs_error(link, last_fn, last_ret);
-failed:
- netwave_release(link);
- return -ENODEV;
-} /* netwave_pcmcia_config */
-
-/*
- * Function netwave_release (arg)
- *
- * After a card is removed, netwave_release() will unregister the net
- * device, and release the PCMCIA configuration. If the device is
- * still open, this will be postponed until it is closed.
- */
-static void netwave_release(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
- netwave_private *priv = netdev_priv(dev);
-
- DEBUG(0, "netwave_release(0x%p)\n", link);
-
- pcmcia_disable_device(link);
- if (link->win)
- iounmap(priv->ramBase);
-}
-
-static int netwave_suspend(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
-
- if (link->open)
- netif_device_detach(dev);
-
- return 0;
-}
-
-static int netwave_resume(struct pcmcia_device *link)
-{
- struct net_device *dev = link->priv;
-
- if (link->open) {
- netwave_reset(dev);
- netif_device_attach(dev);
- }
-
- return 0;
-}
-
-
-/*
- * Function netwave_doreset (ioBase, ramBase)
- *
- * Proper hardware reset of the card.
- */
-static void netwave_doreset(unsigned int ioBase, u_char __iomem *ramBase)
-{
- /* Reset card */
- wait_WOC(ioBase);
- outb(0x80, ioBase + NETWAVE_REG_PMR);
- writeb(0x08, ramBase + NETWAVE_EREG_ASCC); /* Bit 3 is WOC */
- outb(0x0, ioBase + NETWAVE_REG_PMR); /* release reset */
-}
-
-/*
- * Function netwave_reset (dev)
- *
- * Reset and restore all of the netwave registers
- */
-static void netwave_reset(struct net_device *dev) {
- /* u_char state; */
- netwave_private *priv = netdev_priv(dev);
- u_char __iomem *ramBase = priv->ramBase;
- unsigned int iobase = dev->base_addr;
-
- DEBUG(0, "netwave_reset: Done with hardware reset\n");
-
- priv->timeoutCounter = 0;
-
- /* Reset card */
- netwave_doreset(iobase, ramBase);
- printk(KERN_DEBUG "netwave_reset: Done with hardware reset\n");
-
- /* Write a NOP to check the card */
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_NOP, ramBase + NETWAVE_EREG_CB + 0);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
-
- /* Set receive conf */
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0);
- writeb(rxConfRxEna + rxConfBcast, ramBase + NETWAVE_EREG_CB + 1);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
-
- /* Set transmit conf */
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_STC, ramBase + NETWAVE_EREG_CB + 0);
- writeb(txConfTxEna, ramBase + NETWAVE_EREG_CB + 1);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
-
- /* Now set the MU Domain */
- printk(KERN_DEBUG "Setting domain to 0x%x%02x\n", (domain >> 8) & 0x01, domain & 0xff);
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0);
- writeb(domain & 0xff, ramBase + NETWAVE_EREG_CB + 1);
- writeb((domain>>8) & 0x01, ramBase + NETWAVE_EREG_CB + 2);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
-
- /* Set scramble key */
- printk(KERN_DEBUG "Setting scramble key to 0x%x\n", scramble_key);
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0);
- writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1);
- writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
-
- /* Enable interrupts, bit 4 high to keep unused
- * source from interrupting us, bit 2 high to
- * set interrupt enable, 567 to enable TxDN,
- * RxErr and RxRdy
- */
- wait_WOC(iobase);
- outb(imrConfIENA+imrConfRFU1, iobase + NETWAVE_REG_IMR);
-
- /* Hent 4 bytes fra 0x170. Skal vaere 0a,29,88,36
- * waitWOC
- * skriv 80 til d000:3688
- * sjekk om det ble 80
- */
-
- /* Enable Receiver */
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_ER, ramBase + NETWAVE_EREG_CB + 0);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
-
- /* Set the IENA bit in COR */
- wait_WOC(iobase);
- outb(corConfIENA + corConfLVLREQ, iobase + NETWAVE_REG_COR);
-}
-
-/*
- * Function netwave_hw_xmit (data, len, dev)
- */
-static int netwave_hw_xmit(unsigned char* data, int len,
- struct net_device* dev) {
- unsigned long flags;
- unsigned int TxFreeList,
- curBuff,
- MaxData,
- DataOffset;
- int tmpcount;
-
- netwave_private *priv = netdev_priv(dev);
- u_char __iomem * ramBase = priv->ramBase;
- unsigned int iobase = dev->base_addr;
-
- /* Disable interrupts & save flags */
- spin_lock_irqsave(&priv->spinlock, flags);
-
- /* Check if there are transmit buffers available */
- wait_WOC(iobase);
- if ((inb(iobase+NETWAVE_REG_ASR) & NETWAVE_ASR_TXBA) == 0) {
- /* No buffers available */
- printk(KERN_DEBUG "netwave_hw_xmit: %s - no xmit buffers available.\n",
- dev->name);
- spin_unlock_irqrestore(&priv->spinlock, flags);
- return 1;
- }
-
- dev->stats.tx_bytes += len;
-
- DEBUG(3, "Transmitting with SPCQ %x SPU %x LIF %x ISPLQ %x\n",
- readb(ramBase + NETWAVE_EREG_SPCQ),
- readb(ramBase + NETWAVE_EREG_SPU),
- readb(ramBase + NETWAVE_EREG_LIF),
- readb(ramBase + NETWAVE_EREG_ISPLQ));
-
- /* Now try to insert it into the adapters free memory */
- wait_WOC(iobase);
- TxFreeList = get_uint16(ramBase + NETWAVE_EREG_TDP);
- MaxData = get_uint16(ramBase + NETWAVE_EREG_TDP+2);
- DataOffset = get_uint16(ramBase + NETWAVE_EREG_TDP+4);
-
- DEBUG(3, "TxFreeList %x, MaxData %x, DataOffset %x\n",
- TxFreeList, MaxData, DataOffset);
-
- /* Copy packet to the adapter fragment buffers */
- curBuff = TxFreeList;
- tmpcount = 0;
- while (tmpcount < len) {
- int tmplen = len - tmpcount;
- copy_to_pc(ramBase + curBuff + DataOffset, data + tmpcount,
- (tmplen < MaxData) ? tmplen : MaxData);
- tmpcount += MaxData;
-
- /* Advance to next buffer */
- curBuff = get_uint16(ramBase + curBuff);
- }
-
- /* Now issue transmit list */
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_TL, ramBase + NETWAVE_EREG_CB + 0);
- writeb(len & 0xff, ramBase + NETWAVE_EREG_CB + 1);
- writeb((len>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
-
- spin_unlock_irqrestore(&priv->spinlock, flags);
- return 0;
-}
-
-static netdev_tx_t netwave_start_xmit(struct sk_buff *skb,
- struct net_device *dev) {
- /* This flag indicate that the hardware can't perform a transmission.
- * Theoritically, NET3 check it before sending a packet to the driver,
- * but in fact it never do that and pool continuously.
- * As the watchdog will abort too long transmissions, we are quite safe...
- */
-
- netif_stop_queue(dev);
-
- {
- short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
- unsigned char* buf = skb->data;
-
- if (netwave_hw_xmit( buf, length, dev) == 1) {
- /* Some error, let's make them call us another time? */
- netif_start_queue(dev);
- }
- dev->trans_start = jiffies;
- }
- dev_kfree_skb(skb);
-
- return NETDEV_TX_OK;
-} /* netwave_start_xmit */
-
-/*
- * Function netwave_interrupt (irq, dev_id)
- *
- * This function is the interrupt handler for the Netwave card. This
- * routine will be called whenever:
- * 1. A packet is received.
- * 2. A packet has successfully been transferred and the unit is
- * ready to transmit another packet.
- * 3. A command has completed execution.
- */
-static irqreturn_t netwave_interrupt(int irq, void* dev_id)
-{
- unsigned int iobase;
- u_char __iomem *ramBase;
- struct net_device *dev = (struct net_device *)dev_id;
- struct netwave_private *priv = netdev_priv(dev);
- struct pcmcia_device *link = priv->p_dev;
- int i;
-
- if (!netif_device_present(dev))
- return IRQ_NONE;
-
- iobase = dev->base_addr;
- ramBase = priv->ramBase;
-
- /* Now find what caused the interrupt, check while interrupts ready */
- for (i = 0; i < 10; i++) {
- u_char status;
-
- wait_WOC(iobase);
- if (!(inb(iobase+NETWAVE_REG_CCSR) & 0x02))
- break; /* None of the interrupt sources asserted (normal exit) */
-
- status = inb(iobase + NETWAVE_REG_ASR);
-
- if (!pcmcia_dev_present(link)) {
- DEBUG(1, "netwave_interrupt: Interrupt with status 0x%x "
- "from removed or suspended card!\n", status);
- break;
- }
-
- /* RxRdy */
- if (status & 0x80) {
- netwave_rx(dev);
- /* wait_WOC(iobase); */
- /* RxRdy cannot be reset directly by the host */
- }
- /* RxErr */
- if (status & 0x40) {
- u_char rser;
-
- rser = readb(ramBase + NETWAVE_EREG_RSER);
-
- if (rser & 0x04) {
- ++dev->stats.rx_dropped;
- ++dev->stats.rx_crc_errors;
- }
- if (rser & 0x02)
- ++dev->stats.rx_frame_errors;
-
- /* Clear the RxErr bit in RSER. RSER+4 is the
- * write part. Also clear the RxCRC (0x04) and
- * RxBig (0x02) bits if present */
- wait_WOC(iobase);
- writeb(0x40 | (rser & 0x06), ramBase + NETWAVE_EREG_RSER + 4);
-
- /* Write bit 6 high to ASCC to clear RxErr in ASR,
- * WOC must be set first!
- */
- wait_WOC(iobase);
- writeb(0x40, ramBase + NETWAVE_EREG_ASCC);
-
- /* Remember to count up dev->stats on error packets */
- ++dev->stats.rx_errors;
- }
- /* TxDN */
- if (status & 0x20) {
- int txStatus;
-
- txStatus = readb(ramBase + NETWAVE_EREG_TSER);
- DEBUG(3, "Transmit done. TSER = %x id %x\n",
- txStatus, readb(ramBase + NETWAVE_EREG_TSER + 1));
-
- if (txStatus & 0x20) {
- /* Transmitting was okay, clear bits */
- wait_WOC(iobase);
- writeb(0x2f, ramBase + NETWAVE_EREG_TSER + 4);
- ++dev->stats.tx_packets;
- }
-
- if (txStatus & 0xd0) {
- if (txStatus & 0x80) {
- ++dev->stats.collisions; /* Because of /proc/net/dev*/
- /* ++dev->stats.tx_aborted_errors; */
- /* printk("Collision. %ld\n", jiffies - dev->trans_start); */
- }
- if (txStatus & 0x40)
- ++dev->stats.tx_carrier_errors;
- /* 0x80 TxGU Transmit giveup - nine times and no luck
- * 0x40 TxNOAP No access point. Discarded packet.
- * 0x10 TxErr Transmit error. Always set when
- * TxGU and TxNOAP is set. (Those are the only ones
- * to set TxErr).
- */
- DEBUG(3, "netwave_interrupt: TxDN with error status %x\n",
- txStatus);
-
- /* Clear out TxGU, TxNOAP, TxErr and TxTrys */
- wait_WOC(iobase);
- writeb(0xdf & txStatus, ramBase+NETWAVE_EREG_TSER+4);
- ++dev->stats.tx_errors;
- }
- DEBUG(3, "New status is TSER %x ASR %x\n",
- readb(ramBase + NETWAVE_EREG_TSER),
- inb(iobase + NETWAVE_REG_ASR));
-
- netif_wake_queue(dev);
- }
- /* TxBA, this would trigger on all error packets received */
- /* if (status & 0x01) {
- DEBUG(4, "Transmit buffers available, %x\n", status);
- }
- */
- }
- /* Handled if we looped at least one time - Jean II */
- return IRQ_RETVAL(i);
-} /* netwave_interrupt */
-
-/*
- * Function netwave_watchdog (a)
- *
- * Watchdog : when we start a transmission, we set a timer in the
- * kernel. If the transmission complete, this timer is disabled. If
- * it expire, we reset the card.
- *
- */
-static void netwave_watchdog(struct net_device *dev) {
-
- DEBUG(1, "%s: netwave_watchdog: watchdog timer expired\n", dev->name);
- netwave_reset(dev);
- dev->trans_start = jiffies;
- netif_wake_queue(dev);
-} /* netwave_watchdog */
-
-static int netwave_rx(struct net_device *dev)
-{
- netwave_private *priv = netdev_priv(dev);
- u_char __iomem *ramBase = priv->ramBase;
- unsigned int iobase = dev->base_addr;
- u_char rxStatus;
- struct sk_buff *skb = NULL;
- unsigned int curBuffer,
- rcvList;
- int rcvLen;
- int tmpcount = 0;
- int dataCount, dataOffset;
- int i;
- u_char *ptr;
-
- DEBUG(3, "xinw_rx: Receiving ... \n");
-
- /* Receive max 10 packets for now. */
- for (i = 0; i < 10; i++) {
- /* Any packets? */
- wait_WOC(iobase);
- rxStatus = readb(ramBase + NETWAVE_EREG_RSER);
- if ( !( rxStatus & 0x80)) /* No more packets */
- break;
-
- /* Check if multicast/broadcast or other */
- /* multicast = (rxStatus & 0x20); */
-
- /* The receive list pointer and length of the packet */
- wait_WOC(iobase);
- rcvLen = get_int16( ramBase + NETWAVE_EREG_RDP);
- rcvList = get_uint16( ramBase + NETWAVE_EREG_RDP + 2);
-
- if (rcvLen < 0) {
- printk(KERN_DEBUG "netwave_rx: Receive packet with len %d\n",
- rcvLen);
- return 0;
- }
-
- skb = dev_alloc_skb(rcvLen+5);
- if (skb == NULL) {
- DEBUG(1, "netwave_rx: Could not allocate an sk_buff of "
- "length %d\n", rcvLen);
- ++dev->stats.rx_dropped;
- /* Tell the adapter to skip the packet */
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
- return 0;
- }
-
- skb_reserve( skb, 2); /* Align IP on 16 byte */
- skb_put( skb, rcvLen);
-
- /* Copy packet fragments to the skb data area */
- ptr = (u_char*) skb->data;
- curBuffer = rcvList;
- tmpcount = 0;
- while ( tmpcount < rcvLen) {
- /* Get length and offset of current buffer */
- dataCount = get_uint16( ramBase+curBuffer+2);
- dataOffset = get_uint16( ramBase+curBuffer+4);
-
- copy_from_pc( ptr + tmpcount,
- ramBase+curBuffer+dataOffset, dataCount);
-
- tmpcount += dataCount;
-
- /* Point to next buffer */
- curBuffer = get_uint16(ramBase + curBuffer);
- }
-
- skb->protocol = eth_type_trans(skb,dev);
- /* Queue packet for network layer */
- netif_rx(skb);
-
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += rcvLen;
-
- /* Got the packet, tell the adapter to skip it */
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
- DEBUG(3, "Packet reception ok\n");
- }
- return 0;
-}
-
-static int netwave_open(struct net_device *dev) {
- netwave_private *priv = netdev_priv(dev);
- struct pcmcia_device *link = priv->p_dev;
-
- DEBUG(1, "netwave_open: starting.\n");
-
- if (!pcmcia_dev_present(link))
- return -ENODEV;
-
- link->open++;
-
- netif_start_queue(dev);
- netwave_reset(dev);
-
- return 0;
-}
-
-static int netwave_close(struct net_device *dev) {
- netwave_private *priv = netdev_priv(dev);
- struct pcmcia_device *link = priv->p_dev;
-
- DEBUG(1, "netwave_close: finishing.\n");
-
- link->open--;
- netif_stop_queue(dev);
-
- return 0;
-}
-
-static struct pcmcia_device_id netwave_ids[] = {
- PCMCIA_DEVICE_PROD_ID12("Xircom", "CreditCard Netwave", 0x2e3ee845, 0x54e28a28),
- PCMCIA_DEVICE_NULL,
-};
-MODULE_DEVICE_TABLE(pcmcia, netwave_ids);
-
-static struct pcmcia_driver netwave_driver = {
- .owner = THIS_MODULE,
- .drv = {
- .name = "netwave_cs",
- },
- .probe = netwave_probe,
- .remove = netwave_detach,
- .id_table = netwave_ids,
- .suspend = netwave_suspend,
- .resume = netwave_resume,
-};
-
-static int __init init_netwave_cs(void)
-{
- return pcmcia_register_driver(&netwave_driver);
-}
-
-static void __exit exit_netwave_cs(void)
-{
- pcmcia_unregister_driver(&netwave_driver);
-}
-
-module_init(init_netwave_cs);
-module_exit(exit_netwave_cs);
-
-/* Set or clear the multicast filter for this adaptor.
- num_addrs == -1 Promiscuous mode, receive all packets
- num_addrs == 0 Normal mode, clear multicast list
- num_addrs > 0 Multicast mode, receive normal and MC packets, and do
- best-effort filtering.
- */
-static void set_multicast_list(struct net_device *dev)
-{
- unsigned int iobase = dev->base_addr;
- netwave_private *priv = netdev_priv(dev);
- u_char __iomem * ramBase = priv->ramBase;
- u_char rcvMode = 0;
-
-#ifdef PCMCIA_DEBUG
- if (pc_debug > 2) {
- static int old;
- if (old != dev->mc_count) {
- old = dev->mc_count;
- DEBUG(0, "%s: setting Rx mode to %d addresses.\n",
- dev->name, dev->mc_count);
- }
- }
-#endif
-
- if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) {
- /* Multicast Mode */
- rcvMode = rxConfRxEna + rxConfAMP + rxConfBcast;
- } else if (dev->flags & IFF_PROMISC) {
- /* Promiscous mode */
- rcvMode = rxConfRxEna + rxConfPro + rxConfAMP + rxConfBcast;
- } else {
- /* Normal mode */
- rcvMode = rxConfRxEna + rxConfBcast;
- }
-
- /* printk("netwave set_multicast_list: rcvMode to %x\n", rcvMode);*/
- /* Now set receive mode */
- wait_WOC(iobase);
- writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0);
- writeb(rcvMode, ramBase + NETWAVE_EREG_CB + 1);
- writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
-}
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 71cad2f..7e4a0b5 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -133,5 +133,7 @@ source "drivers/staging/arlan/Kconfig"
source "drivers/staging/wavelan/Kconfig"
+source "drivers/staging/netwave/Kconfig"
+
endif # !STAGING_EXCLUDE_BUILD
endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 95bc3e5..4cb1b78 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -49,3 +49,4 @@ obj-$(CONFIG_STRIP) += strip/
obj-$(CONFIG_ARLAN) += arlan/
obj-$(CONFIG_WAVELAN) += wavelan/
obj-$(CONFIG_PCMCIA_WAVELAN) += wavelan/
+obj-$(CONFIG_PCMCIA_NETWAVE) += netwave/
diff --git a/drivers/staging/netwave/Kconfig b/drivers/staging/netwave/Kconfig
new file mode 100644
index 0000000..b6f0f0a
--- /dev/null
+++ b/drivers/staging/netwave/Kconfig
@@ -0,0 +1,10 @@
+config PCMCIA_NETWAVE
+ tristate "Xircom Netwave AirSurfer Pcmcia wireless support"
+ depends on PCMCIA
+ select WIRELESS_EXT
+ help
+ Say Y here if you intend to attach this type of PCMCIA (PC-card)
+ wireless Ethernet networking card to your computer.
+
+ To compile this driver as a module, choose M here: the module will be
+ called netwave_cs. If unsure, say N.
diff --git a/drivers/staging/netwave/Makefile b/drivers/staging/netwave/Makefile
new file mode 100644
index 0000000..2ab89de
--- /dev/null
+++ b/drivers/staging/netwave/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_PCMCIA_NETWAVE) += netwave_cs.o
diff --git a/drivers/staging/netwave/netwave_cs.c b/drivers/staging/netwave/netwave_cs.c
new file mode 100644
index 0000000..9498b46
--- /dev/null
+++ b/drivers/staging/netwave/netwave_cs.c
@@ -0,0 +1,1389 @@
+/*********************************************************************
+ *
+ * Filename: netwave_cs.c
+ * Version: 0.4.1
+ * Description: Netwave AirSurfer Wireless LAN PC Card driver
+ * Status: Experimental.
+ * Authors: John Markus Bjørndalen <johnm@cs.uit.no>
+ * Dag Brattli <dagb@cs.uit.no>
+ * David Hinds <dahinds@users.sourceforge.net>
+ * Created at: A long time ago!
+ * Modified at: Mon Nov 10 11:54:37 1997
+ * Modified by: Dag Brattli <dagb@cs.uit.no>
+ *
+ * Copyright (c) 1997 University of Tromsø, Norway
+ *
+ * Revision History:
+ *
+ * 08-Nov-97 15:14:47 John Markus Bjørndalen <johnm@cs.uit.no>
+ * - Fixed some bugs in netwave_rx and cleaned it up a bit.
+ * (One of the bugs would have destroyed packets when receiving
+ * multiple packets per interrupt).
+ * - Cleaned up parts of newave_hw_xmit.
+ * - A few general cleanups.
+ * 24-Oct-97 13:17:36 Dag Brattli <dagb@cs.uit.no>
+ * - Fixed netwave_rx receive function (got updated docs)
+ * Others:
+ * - Changed name from xircnw to netwave, take a look at
+ * http://www.netwave-wireless.com
+ * - Some reorganizing of the code
+ * - Removed possible race condition between interrupt handler and transmit
+ * function
+ * - Started to add wireless extensions, but still needs some coding
+ * - Added watchdog for better handling of transmission timeouts
+ * (hopefully this works better)
+ ********************************************************************/
+
+/* To have statistics (just packets sent) define this */
+#undef NETWAVE_STATS
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/in.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/errno.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/bitops.h>
+#include <linux/wireless.h>
+#include <net/iw_handler.h>
+
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/mem_op.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+
+#define NETWAVE_REGOFF 0x8000
+/* The Netwave IO registers, offsets to iobase */
+#define NETWAVE_REG_COR 0x0
+#define NETWAVE_REG_CCSR 0x2
+#define NETWAVE_REG_ASR 0x4
+#define NETWAVE_REG_IMR 0xa
+#define NETWAVE_REG_PMR 0xc
+#define NETWAVE_REG_IOLOW 0x6
+#define NETWAVE_REG_IOHI 0x7
+#define NETWAVE_REG_IOCONTROL 0x8
+#define NETWAVE_REG_DATA 0xf
+/* The Netwave Extended IO registers, offsets to RamBase */
+#define NETWAVE_EREG_ASCC 0x114
+#define NETWAVE_EREG_RSER 0x120
+#define NETWAVE_EREG_RSERW 0x124
+#define NETWAVE_EREG_TSER 0x130
+#define NETWAVE_EREG_TSERW 0x134
+#define NETWAVE_EREG_CB 0x100
+#define NETWAVE_EREG_SPCQ 0x154
+#define NETWAVE_EREG_SPU 0x155
+#define NETWAVE_EREG_LIF 0x14e
+#define NETWAVE_EREG_ISPLQ 0x156
+#define NETWAVE_EREG_HHC 0x158
+#define NETWAVE_EREG_NI 0x16e
+#define NETWAVE_EREG_MHS 0x16b
+#define NETWAVE_EREG_TDP 0x140
+#define NETWAVE_EREG_RDP 0x150
+#define NETWAVE_EREG_PA 0x160
+#define NETWAVE_EREG_EC 0x180
+#define NETWAVE_EREG_CRBP 0x17a
+#define NETWAVE_EREG_ARW 0x166
+
+/*
+ * Commands used in the extended command buffer
+ * NETWAVE_EREG_CB (0x100-0x10F)
+ */
+#define NETWAVE_CMD_NOP 0x00
+#define NETWAVE_CMD_SRC 0x01
+#define NETWAVE_CMD_STC 0x02
+#define NETWAVE_CMD_AMA 0x03
+#define NETWAVE_CMD_DMA 0x04
+#define NETWAVE_CMD_SAMA 0x05
+#define NETWAVE_CMD_ER 0x06
+#define NETWAVE_CMD_DR 0x07
+#define NETWAVE_CMD_TL 0x08
+#define NETWAVE_CMD_SRP 0x09
+#define NETWAVE_CMD_SSK 0x0a
+#define NETWAVE_CMD_SMD 0x0b
+#define NETWAVE_CMD_SAPD 0x0c
+#define NETWAVE_CMD_SSS 0x11
+/* End of Command marker */
+#define NETWAVE_CMD_EOC 0x00
+
+/* ASR register bits */
+#define NETWAVE_ASR_RXRDY 0x80
+#define NETWAVE_ASR_TXBA 0x01
+
+#define TX_TIMEOUT ((32*HZ)/100)
+
+static const unsigned int imrConfRFU1 = 0x10; /* RFU interrupt mask, keep high */
+static const unsigned int imrConfIENA = 0x02; /* Interrupt enable */
+
+static const unsigned int corConfIENA = 0x01; /* Interrupt enable */
+static const unsigned int corConfLVLREQ = 0x40; /* Keep high */
+
+static const unsigned int rxConfRxEna = 0x80; /* Receive Enable */
+static const unsigned int rxConfMAC = 0x20; /* MAC host receive mode*/
+static const unsigned int rxConfPro = 0x10; /* Promiscuous */
+static const unsigned int rxConfAMP = 0x08; /* Accept Multicast Packets */
+static const unsigned int rxConfBcast = 0x04; /* Accept Broadcast Packets */
+
+static const unsigned int txConfTxEna = 0x80; /* Transmit Enable */
+static const unsigned int txConfMAC = 0x20; /* Host sends MAC mode */
+static const unsigned int txConfEUD = 0x10; /* Enable Uni-Data packets */
+static const unsigned int txConfKey = 0x02; /* Scramble data packets */
+static const unsigned int txConfLoop = 0x01; /* Loopback mode */
+
+/*
+ All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
+ you do not define PCMCIA_DEBUG at all, all the debug code will be
+ left out. If you compile with PCMCIA_DEBUG=0, the debug code will
+ be present but disabled -- but it can then be enabled for specific
+ modules at load time with a 'pc_debug=#' option to insmod.
+*/
+
+#ifdef PCMCIA_DEBUG
+static int pc_debug = PCMCIA_DEBUG;
+module_param(pc_debug, int, 0);
+#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
+static char *version =
+"netwave_cs.c 0.3.0 Thu Jul 17 14:36:02 1997 (John Markus Bjørndalen)\n";
+#else
+#define DEBUG(n, args...)
+#endif
+
+/*====================================================================*/
+
+/* Parameters that can be set with 'insmod' */
+
+/* Choose the domain, default is 0x100 */
+static u_int domain = 0x100;
+
+/* Scramble key, range from 0x0 to 0xffff.
+ * 0x0 is no scrambling.
+ */
+static u_int scramble_key = 0x0;
+
+/* Shared memory speed, in ns. The documentation states that
+ * the card should not be read faster than every 400ns.
+ * This timing should be provided by the HBA. If it becomes a
+ * problem, try setting mem_speed to 400.
+ */
+static int mem_speed;
+
+module_param(domain, int, 0);
+module_param(scramble_key, int, 0);
+module_param(mem_speed, int, 0);
+
+/*====================================================================*/
+
+/* PCMCIA (Card Services) related functions */
+static void netwave_release(struct pcmcia_device *link); /* Card removal */
+static int netwave_pcmcia_config(struct pcmcia_device *arg); /* Runs after card
+ insertion */
+static void netwave_detach(struct pcmcia_device *p_dev); /* Destroy instance */
+
+/* Hardware configuration */
+static void netwave_doreset(unsigned int iobase, u_char __iomem *ramBase);
+static void netwave_reset(struct net_device *dev);
+
+/* Misc device stuff */
+static int netwave_open(struct net_device *dev); /* Open the device */
+static int netwave_close(struct net_device *dev); /* Close the device */
+
+/* Packet transmission and Packet reception */
+static netdev_tx_t netwave_start_xmit( struct sk_buff *skb,
+ struct net_device *dev);
+static int netwave_rx( struct net_device *dev);
+
+/* Interrupt routines */
+static irqreturn_t netwave_interrupt(int irq, void *dev_id);
+static void netwave_watchdog(struct net_device *);
+
+/* Wireless extensions */
+static struct iw_statistics* netwave_get_wireless_stats(struct net_device *dev);
+
+static void set_multicast_list(struct net_device *dev);
+
+/*
+ A struct pcmcia_device structure has fields for most things that are needed
+ to keep track of a socket, but there will usually be some device
+ specific information that also needs to be kept track of. The
+ 'priv' pointer in a struct pcmcia_device structure can be used to point to
+ a device-specific private data structure, like this.
+
+ A driver needs to provide a dev_node_t structure for each device
+ on a card. In some cases, there is only one device per card (for
+ example, ethernet cards, modems). In other cases, there may be
+ many actual or logical devices (SCSI adapters, memory cards with
+ multiple partitions). The dev_node_t structures need to be kept
+ in a linked list starting at the 'dev' field of a struct pcmcia_device
+ structure. We allocate them in the card's private data structure,
+ because they generally can't be allocated dynamically.
+*/
+
+static const struct iw_handler_def netwave_handler_def;
+
+#define SIOCGIPSNAP SIOCIWFIRSTPRIV + 1 /* Site Survey Snapshot */
+
+#define MAX_ESA 10
+
+typedef struct net_addr {
+ u_char addr48[6];
+} net_addr;
+
+struct site_survey {
+ u_short length;
+ u_char struct_revision;
+ u_char roaming_state;
+
+ u_char sp_existsFlag;
+ u_char sp_link_quality;
+ u_char sp_max_link_quality;
+ u_char linkQualityGoodFairBoundary;
+ u_char linkQualityFairPoorBoundary;
+ u_char sp_utilization;
+ u_char sp_goodness;
+ u_char sp_hotheadcount;
+ u_char roaming_condition;
+
+ net_addr sp;
+ u_char numAPs;
+ net_addr nearByAccessPoints[MAX_ESA];
+};
+
+typedef struct netwave_private {
+ struct pcmcia_device *p_dev;
+ spinlock_t spinlock; /* Serialize access to the hardware (SMP) */
+ dev_node_t node;
+ u_char __iomem *ramBase;
+ int timeoutCounter;
+ int lastExec;
+ struct timer_list watchdog; /* To avoid blocking state */
+ struct site_survey nss;
+ struct iw_statistics iw_stats; /* Wireless stats */
+} netwave_private;
+
+/*
+ * The Netwave card is little-endian, so won't work for big endian
+ * systems.
+ */
+static inline unsigned short get_uint16(u_char __iomem *staddr)
+{
+ return readw(staddr); /* Return only 16 bits */
+}
+
+static inline short get_int16(u_char __iomem * staddr)
+{
+ return readw(staddr);
+}
+
+/*
+ * Wait until the WOC (Write Operation Complete) bit in the
+ * ASR (Adapter Status Register) is asserted.
+ * This should have aborted if it takes too long time.
+ */
+static inline void wait_WOC(unsigned int iobase)
+{
+ /* Spin lock */
+ while ((inb(iobase + NETWAVE_REG_ASR) & 0x8) != 0x8) ;
+}
+
+static void netwave_snapshot(netwave_private *priv, u_char __iomem *ramBase,
+ unsigned int iobase) {
+ u_short resultBuffer;
+
+ /* if time since last snapshot is > 1 sec. (100 jiffies?) then take
+ * new snapshot, else return cached data. This is the recommended rate.
+ */
+ if ( jiffies - priv->lastExec > 100) {
+ /* Take site survey snapshot */
+ /*printk( KERN_DEBUG "Taking new snapshot. %ld\n", jiffies -
+ priv->lastExec); */
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_SSS, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
+ wait_WOC(iobase);
+
+ /* Get result and copy to cach */
+ resultBuffer = readw(ramBase + NETWAVE_EREG_CRBP);
+ copy_from_pc( &priv->nss, ramBase+resultBuffer,
+ sizeof(struct site_survey));
+ }
+}
+
+/*
+ * Function netwave_get_wireless_stats (dev)
+ *
+ * Wireless extensions statistics
+ *
+ */
+static struct iw_statistics *netwave_get_wireless_stats(struct net_device *dev)
+{
+ unsigned long flags;
+ unsigned int iobase = dev->base_addr;
+ netwave_private *priv = netdev_priv(dev);
+ u_char __iomem *ramBase = priv->ramBase;
+ struct iw_statistics* wstats;
+
+ wstats = &priv->iw_stats;
+
+ spin_lock_irqsave(&priv->spinlock, flags);
+
+ netwave_snapshot( priv, ramBase, iobase);
+
+ wstats->status = priv->nss.roaming_state;
+ wstats->qual.qual = readb( ramBase + NETWAVE_EREG_SPCQ);
+ wstats->qual.level = readb( ramBase + NETWAVE_EREG_ISPLQ);
+ wstats->qual.noise = readb( ramBase + NETWAVE_EREG_SPU) & 0x3f;
+ wstats->discard.nwid = 0L;
+ wstats->discard.code = 0L;
+ wstats->discard.misc = 0L;
+
+ spin_unlock_irqrestore(&priv->spinlock, flags);
+
+ return &priv->iw_stats;
+}
+
+static const struct net_device_ops netwave_netdev_ops = {
+ .ndo_open = netwave_open,
+ .ndo_stop = netwave_close,
+ .ndo_start_xmit = netwave_start_xmit,
+ .ndo_set_multicast_list = set_multicast_list,
+ .ndo_tx_timeout = netwave_watchdog,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+/*
+ * Function netwave_attach (void)
+ *
+ * Creates an "instance" of the driver, allocating local data
+ * structures for one device. The device is registered with Card
+ * Services.
+ *
+ * The dev_link structure is initialized, but we don't actually
+ * configure the card at this point -- we wait until we receive a
+ * card insertion event.
+ */
+static int netwave_probe(struct pcmcia_device *link)
+{
+ struct net_device *dev;
+ netwave_private *priv;
+
+ DEBUG(0, "netwave_attach()\n");
+
+ /* Initialize the struct pcmcia_device structure */
+ dev = alloc_etherdev(sizeof(netwave_private));
+ if (!dev)
+ return -ENOMEM;
+ priv = netdev_priv(dev);
+ priv->p_dev = link;
+ link->priv = dev;
+
+ /* The io structure describes IO port mapping */
+ link->io.NumPorts1 = 16;
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
+ /* link->io.NumPorts2 = 16;
+ link->io.Attributes2 = IO_DATA_PATH_WIDTH_16; */
+ link->io.IOAddrLines = 5;
+
+ /* Interrupt setup */
+ link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
+ link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+ link->irq.Handler = &netwave_interrupt;
+
+ /* General socket configuration */
+ link->conf.Attributes = CONF_ENABLE_IRQ;
+ link->conf.IntType = INT_MEMORY_AND_IO;
+ link->conf.ConfigIndex = 1;
+
+ /* Netwave private struct init. link/dev/node already taken care of,
+ * other stuff zero'd - Jean II */
+ spin_lock_init(&priv->spinlock);
+
+ /* Netwave specific entries in the device structure */
+ dev->netdev_ops = &netwave_netdev_ops;
+ /* wireless extensions */
+ dev->wireless_handlers = &netwave_handler_def;
+
+ dev->watchdog_timeo = TX_TIMEOUT;
+
+ link->irq.Instance = dev;
+
+ return netwave_pcmcia_config( link);
+} /* netwave_attach */
+
+/*
+ * Function netwave_detach (link)
+ *
+ * This deletes a driver "instance". The device is de-registered
+ * with Card Services. If it has been released, all local data
+ * structures are freed. Otherwise, the structures will be freed
+ * when the device is released.
+ */
+static void netwave_detach(struct pcmcia_device *link)
+{
+ struct net_device *dev = link->priv;
+
+ DEBUG(0, "netwave_detach(0x%p)\n", link);
+
+ netwave_release(link);
+
+ if (link->dev_node)
+ unregister_netdev(dev);
+
+ free_netdev(dev);
+} /* netwave_detach */
+
+/*
+ * Wireless Handler : get protocol name
+ */
+static int netwave_get_name(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu,
+ char *extra)
+{
+ strcpy(wrqu->name, "Netwave");
+ return 0;
+}
+
+/*
+ * Wireless Handler : set Network ID
+ */
+static int netwave_set_nwid(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu,
+ char *extra)
+{
+ unsigned long flags;
+ unsigned int iobase = dev->base_addr;
+ netwave_private *priv = netdev_priv(dev);
+ u_char __iomem *ramBase = priv->ramBase;
+
+ /* Disable interrupts & save flags */
+ spin_lock_irqsave(&priv->spinlock, flags);
+
+ if(!wrqu->nwid.disabled) {
+ domain = wrqu->nwid.value;
+ printk( KERN_DEBUG "Setting domain to 0x%x%02x\n",
+ (domain >> 8) & 0x01, domain & 0xff);
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0);
+ writeb( domain & 0xff, ramBase + NETWAVE_EREG_CB + 1);
+ writeb((domain >>8 ) & 0x01,ramBase + NETWAVE_EREG_CB+2);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
+ }
+
+ /* ReEnable interrupts & restore flags */
+ spin_unlock_irqrestore(&priv->spinlock, flags);
+
+ return 0;
+}
+
+/*
+ * Wireless Handler : get Network ID
+ */
+static int netwave_get_nwid(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu,
+ char *extra)
+{
+ wrqu->nwid.value = domain;
+ wrqu->nwid.disabled = 0;
+ wrqu->nwid.fixed = 1;
+ return 0;
+}
+
+/*
+ * Wireless Handler : set scramble key
+ */
+static int netwave_set_scramble(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu,
+ char *key)
+{
+ unsigned long flags;
+ unsigned int iobase = dev->base_addr;
+ netwave_private *priv = netdev_priv(dev);
+ u_char __iomem *ramBase = priv->ramBase;
+
+ /* Disable interrupts & save flags */
+ spin_lock_irqsave(&priv->spinlock, flags);
+
+ scramble_key = (key[0] << 8) | key[1];
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1);
+ writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
+
+ /* ReEnable interrupts & restore flags */
+ spin_unlock_irqrestore(&priv->spinlock, flags);
+
+ return 0;
+}
+
+/*
+ * Wireless Handler : get scramble key
+ */
+static int netwave_get_scramble(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu,
+ char *key)
+{
+ key[1] = scramble_key & 0xff;
+ key[0] = (scramble_key>>8) & 0xff;
+ wrqu->encoding.flags = IW_ENCODE_ENABLED;
+ wrqu->encoding.length = 2;
+ return 0;
+}
+
+/*
+ * Wireless Handler : get mode
+ */
+static int netwave_get_mode(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu,
+ char *extra)
+{
+ if(domain & 0x100)
+ wrqu->mode = IW_MODE_INFRA;
+ else
+ wrqu->mode = IW_MODE_ADHOC;
+
+ return 0;
+}
+
+/*
+ * Wireless Handler : get range info
+ */
+static int netwave_get_range(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu,
+ char *extra)
+{
+ struct iw_range *range = (struct iw_range *) extra;
+ int ret = 0;
+
+ /* Set the length (very important for backward compatibility) */
+ wrqu->data.length = sizeof(struct iw_range);
+
+ /* Set all the info we don't care or don't know about to zero */
+ memset(range, 0, sizeof(struct iw_range));
+
+ /* Set the Wireless Extension versions */
+ range->we_version_compiled = WIRELESS_EXT;
+ range->we_version_source = 9; /* Nothing for us in v10 and v11 */
+
+ /* Set information in the range struct */
+ range->throughput = 450 * 1000; /* don't argue on this ! */
+ range->min_nwid = 0x0000;
+ range->max_nwid = 0x01FF;
+
+ range->num_channels = range->num_frequency = 0;
+
+ range->sensitivity = 0x3F;
+ range->max_qual.qual = 255;
+ range->max_qual.level = 255;
+ range->max_qual.noise = 0;
+
+ range->num_bitrates = 1;
+ range->bitrate[0] = 1000000; /* 1 Mb/s */
+
+ range->encoding_size[0] = 2; /* 16 bits scrambling */
+ range->num_encoding_sizes = 1;
+ range->max_encoding_tokens = 1; /* Only one key possible */
+
+ return ret;
+}
+
+/*
+ * Wireless Private Handler : get snapshot
+ */
+static int netwave_get_snap(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu,
+ char *extra)
+{
+ unsigned long flags;
+ unsigned int iobase = dev->base_addr;
+ netwave_private *priv = netdev_priv(dev);
+ u_char __iomem *ramBase = priv->ramBase;
+
+ /* Disable interrupts & save flags */
+ spin_lock_irqsave(&priv->spinlock, flags);
+
+ /* Take snapshot of environment */
+ netwave_snapshot( priv, ramBase, iobase);
+ wrqu->data.length = priv->nss.length;
+ memcpy(extra, (u_char *) &priv->nss, sizeof( struct site_survey));
+
+ priv->lastExec = jiffies;
+
+ /* ReEnable interrupts & restore flags */
+ spin_unlock_irqrestore(&priv->spinlock, flags);
+
+ return(0);
+}
+
+/*
+ * Structures to export the Wireless Handlers
+ * This is the stuff that are treated the wireless extensions (iwconfig)
+ */
+
+static const struct iw_priv_args netwave_private_args[] = {
+/*{ cmd, set_args, get_args, name } */
+ { SIOCGIPSNAP, 0,
+ IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof(struct site_survey),
+ "getsitesurvey" },
+};
+
+static const iw_handler netwave_handler[] =
+{
+ NULL, /* SIOCSIWNAME */
+ netwave_get_name, /* SIOCGIWNAME */
+ netwave_set_nwid, /* SIOCSIWNWID */
+ netwave_get_nwid, /* SIOCGIWNWID */
+ NULL, /* SIOCSIWFREQ */
+ NULL, /* SIOCGIWFREQ */
+ NULL, /* SIOCSIWMODE */
+ netwave_get_mode, /* SIOCGIWMODE */
+ NULL, /* SIOCSIWSENS */
+ NULL, /* SIOCGIWSENS */
+ NULL, /* SIOCSIWRANGE */
+ netwave_get_range, /* SIOCGIWRANGE */
+ NULL, /* SIOCSIWPRIV */
+ NULL, /* SIOCGIWPRIV */
+ NULL, /* SIOCSIWSTATS */
+ NULL, /* SIOCGIWSTATS */
+ NULL, /* SIOCSIWSPY */
+ NULL, /* SIOCGIWSPY */
+ NULL, /* -- hole -- */
+ NULL, /* -- hole -- */
+ NULL, /* SIOCSIWAP */
+ NULL, /* SIOCGIWAP */
+ NULL, /* -- hole -- */
+ NULL, /* SIOCGIWAPLIST */
+ NULL, /* -- hole -- */
+ NULL, /* -- hole -- */
+ NULL, /* SIOCSIWESSID */
+ NULL, /* SIOCGIWESSID */
+ NULL, /* SIOCSIWNICKN */
+ NULL, /* SIOCGIWNICKN */
+ NULL, /* -- hole -- */
+ NULL, /* -- hole -- */
+ NULL, /* SIOCSIWRATE */
+ NULL, /* SIOCGIWRATE */
+ NULL, /* SIOCSIWRTS */
+ NULL, /* SIOCGIWRTS */
+ NULL, /* SIOCSIWFRAG */
+ NULL, /* SIOCGIWFRAG */
+ NULL, /* SIOCSIWTXPOW */
+ NULL, /* SIOCGIWTXPOW */
+ NULL, /* SIOCSIWRETRY */
+ NULL, /* SIOCGIWRETRY */
+ netwave_set_scramble, /* SIOCSIWENCODE */
+ netwave_get_scramble, /* SIOCGIWENCODE */
+};
+
+static const iw_handler netwave_private_handler[] =
+{
+ NULL, /* SIOCIWFIRSTPRIV */
+ netwave_get_snap, /* SIOCIWFIRSTPRIV + 1 */
+};
+
+static const struct iw_handler_def netwave_handler_def =
+{
+ .num_standard = ARRAY_SIZE(netwave_handler),
+ .num_private = ARRAY_SIZE(netwave_private_handler),
+ .num_private_args = ARRAY_SIZE(netwave_private_args),
+ .standard = (iw_handler *) netwave_handler,
+ .private = (iw_handler *) netwave_private_handler,
+ .private_args = (struct iw_priv_args *) netwave_private_args,
+ .get_wireless_stats = netwave_get_wireless_stats,
+};
+
+/*
+ * Function netwave_pcmcia_config (link)
+ *
+ * netwave_pcmcia_config() is scheduled to run after a CARD_INSERTION
+ * event is received, to configure the PCMCIA socket, and to make the
+ * device available to the system.
+ *
+ */
+
+#define CS_CHECK(fn, ret) \
+do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
+
+static int netwave_pcmcia_config(struct pcmcia_device *link) {
+ struct net_device *dev = link->priv;
+ netwave_private *priv = netdev_priv(dev);
+ int i, j, last_ret, last_fn;
+ win_req_t req;
+ memreq_t mem;
+ u_char __iomem *ramBase = NULL;
+
+ DEBUG(0, "netwave_pcmcia_config(0x%p)\n", link);
+
+ /*
+ * Try allocating IO ports. This tries a few fixed addresses.
+ * If you want, you can also read the card's config table to
+ * pick addresses -- see the serial driver for an example.
+ */
+ for (i = j = 0x0; j < 0x400; j += 0x20) {
+ link->io.BasePort1 = j ^ 0x300;
+ i = pcmcia_request_io(link, &link->io);
+ if (i == 0)
+ break;
+ }
+ if (i != 0) {
+ cs_error(link, RequestIO, i);
+ goto failed;
+ }
+
+ /*
+ * Now allocate an interrupt line. Note that this does not
+ * actually assign a handler to the interrupt.
+ */
+ CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
+
+ /*
+ * This actually configures the PCMCIA socket -- setting up
+ * the I/O windows and the interrupt mapping.
+ */
+ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
+
+ /*
+ * Allocate a 32K memory window. Note that the struct pcmcia_device
+ * structure provides space for one window handle -- if your
+ * device needs several windows, you'll need to keep track of
+ * the handles in your private data structure, dev->priv.
+ */
+ DEBUG(1, "Setting mem speed of %d\n", mem_speed);
+
+ req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
+ req.Base = 0; req.Size = 0x8000;
+ req.AccessSpeed = mem_speed;
+ CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &link->win));
+ mem.CardOffset = 0x20000; mem.Page = 0;
+ CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
+
+ /* Store base address of the common window frame */
+ ramBase = ioremap(req.Base, 0x8000);
+ priv->ramBase = ramBase;
+
+ dev->irq = link->irq.AssignedIRQ;
+ dev->base_addr = link->io.BasePort1;
+ SET_NETDEV_DEV(dev, &handle_to_dev(link));
+
+ if (register_netdev(dev) != 0) {
+ printk(KERN_DEBUG "netwave_cs: register_netdev() failed\n");
+ goto failed;
+ }
+
+ strcpy(priv->node.dev_name, dev->name);
+ link->dev_node = &priv->node;
+
+ /* Reset card before reading physical address */
+ netwave_doreset(dev->base_addr, ramBase);
+
+ /* Read the ethernet address and fill in the Netwave registers. */
+ for (i = 0; i < 6; i++)
+ dev->dev_addr[i] = readb(ramBase + NETWAVE_EREG_PA + i);
+
+ printk(KERN_INFO "%s: Netwave: port %#3lx, irq %d, mem %lx, "
+ "id %c%c, hw_addr %pM\n",
+ dev->name, dev->base_addr, dev->irq,
+ (u_long) ramBase,
+ (int) readb(ramBase+NETWAVE_EREG_NI),
+ (int) readb(ramBase+NETWAVE_EREG_NI+1),
+ dev->dev_addr);
+
+ /* get revision words */
+ printk(KERN_DEBUG "Netwave_reset: revision %04x %04x\n",
+ get_uint16(ramBase + NETWAVE_EREG_ARW),
+ get_uint16(ramBase + NETWAVE_EREG_ARW+2));
+ return 0;
+
+cs_failed:
+ cs_error(link, last_fn, last_ret);
+failed:
+ netwave_release(link);
+ return -ENODEV;
+} /* netwave_pcmcia_config */
+
+/*
+ * Function netwave_release (arg)
+ *
+ * After a card is removed, netwave_release() will unregister the net
+ * device, and release the PCMCIA configuration. If the device is
+ * still open, this will be postponed until it is closed.
+ */
+static void netwave_release(struct pcmcia_device *link)
+{
+ struct net_device *dev = link->priv;
+ netwave_private *priv = netdev_priv(dev);
+
+ DEBUG(0, "netwave_release(0x%p)\n", link);
+
+ pcmcia_disable_device(link);
+ if (link->win)
+ iounmap(priv->ramBase);
+}
+
+static int netwave_suspend(struct pcmcia_device *link)
+{
+ struct net_device *dev = link->priv;
+
+ if (link->open)
+ netif_device_detach(dev);
+
+ return 0;
+}
+
+static int netwave_resume(struct pcmcia_device *link)
+{
+ struct net_device *dev = link->priv;
+
+ if (link->open) {
+ netwave_reset(dev);
+ netif_device_attach(dev);
+ }
+
+ return 0;
+}
+
+
+/*
+ * Function netwave_doreset (ioBase, ramBase)
+ *
+ * Proper hardware reset of the card.
+ */
+static void netwave_doreset(unsigned int ioBase, u_char __iomem *ramBase)
+{
+ /* Reset card */
+ wait_WOC(ioBase);
+ outb(0x80, ioBase + NETWAVE_REG_PMR);
+ writeb(0x08, ramBase + NETWAVE_EREG_ASCC); /* Bit 3 is WOC */
+ outb(0x0, ioBase + NETWAVE_REG_PMR); /* release reset */
+}
+
+/*
+ * Function netwave_reset (dev)
+ *
+ * Reset and restore all of the netwave registers
+ */
+static void netwave_reset(struct net_device *dev) {
+ /* u_char state; */
+ netwave_private *priv = netdev_priv(dev);
+ u_char __iomem *ramBase = priv->ramBase;
+ unsigned int iobase = dev->base_addr;
+
+ DEBUG(0, "netwave_reset: Done with hardware reset\n");
+
+ priv->timeoutCounter = 0;
+
+ /* Reset card */
+ netwave_doreset(iobase, ramBase);
+ printk(KERN_DEBUG "netwave_reset: Done with hardware reset\n");
+
+ /* Write a NOP to check the card */
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_NOP, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
+
+ /* Set receive conf */
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(rxConfRxEna + rxConfBcast, ramBase + NETWAVE_EREG_CB + 1);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
+
+ /* Set transmit conf */
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_STC, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(txConfTxEna, ramBase + NETWAVE_EREG_CB + 1);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
+
+ /* Now set the MU Domain */
+ printk(KERN_DEBUG "Setting domain to 0x%x%02x\n", (domain >> 8) & 0x01, domain & 0xff);
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(domain & 0xff, ramBase + NETWAVE_EREG_CB + 1);
+ writeb((domain>>8) & 0x01, ramBase + NETWAVE_EREG_CB + 2);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
+
+ /* Set scramble key */
+ printk(KERN_DEBUG "Setting scramble key to 0x%x\n", scramble_key);
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1);
+ writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
+
+ /* Enable interrupts, bit 4 high to keep unused
+ * source from interrupting us, bit 2 high to
+ * set interrupt enable, 567 to enable TxDN,
+ * RxErr and RxRdy
+ */
+ wait_WOC(iobase);
+ outb(imrConfIENA+imrConfRFU1, iobase + NETWAVE_REG_IMR);
+
+ /* Hent 4 bytes fra 0x170. Skal vaere 0a,29,88,36
+ * waitWOC
+ * skriv 80 til d000:3688
+ * sjekk om det ble 80
+ */
+
+ /* Enable Receiver */
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_ER, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
+
+ /* Set the IENA bit in COR */
+ wait_WOC(iobase);
+ outb(corConfIENA + corConfLVLREQ, iobase + NETWAVE_REG_COR);
+}
+
+/*
+ * Function netwave_hw_xmit (data, len, dev)
+ */
+static int netwave_hw_xmit(unsigned char* data, int len,
+ struct net_device* dev) {
+ unsigned long flags;
+ unsigned int TxFreeList,
+ curBuff,
+ MaxData,
+ DataOffset;
+ int tmpcount;
+
+ netwave_private *priv = netdev_priv(dev);
+ u_char __iomem * ramBase = priv->ramBase;
+ unsigned int iobase = dev->base_addr;
+
+ /* Disable interrupts & save flags */
+ spin_lock_irqsave(&priv->spinlock, flags);
+
+ /* Check if there are transmit buffers available */
+ wait_WOC(iobase);
+ if ((inb(iobase+NETWAVE_REG_ASR) & NETWAVE_ASR_TXBA) == 0) {
+ /* No buffers available */
+ printk(KERN_DEBUG "netwave_hw_xmit: %s - no xmit buffers available.\n",
+ dev->name);
+ spin_unlock_irqrestore(&priv->spinlock, flags);
+ return 1;
+ }
+
+ dev->stats.tx_bytes += len;
+
+ DEBUG(3, "Transmitting with SPCQ %x SPU %x LIF %x ISPLQ %x\n",
+ readb(ramBase + NETWAVE_EREG_SPCQ),
+ readb(ramBase + NETWAVE_EREG_SPU),
+ readb(ramBase + NETWAVE_EREG_LIF),
+ readb(ramBase + NETWAVE_EREG_ISPLQ));
+
+ /* Now try to insert it into the adapters free memory */
+ wait_WOC(iobase);
+ TxFreeList = get_uint16(ramBase + NETWAVE_EREG_TDP);
+ MaxData = get_uint16(ramBase + NETWAVE_EREG_TDP+2);
+ DataOffset = get_uint16(ramBase + NETWAVE_EREG_TDP+4);
+
+ DEBUG(3, "TxFreeList %x, MaxData %x, DataOffset %x\n",
+ TxFreeList, MaxData, DataOffset);
+
+ /* Copy packet to the adapter fragment buffers */
+ curBuff = TxFreeList;
+ tmpcount = 0;
+ while (tmpcount < len) {
+ int tmplen = len - tmpcount;
+ copy_to_pc(ramBase + curBuff + DataOffset, data + tmpcount,
+ (tmplen < MaxData) ? tmplen : MaxData);
+ tmpcount += MaxData;
+
+ /* Advance to next buffer */
+ curBuff = get_uint16(ramBase + curBuff);
+ }
+
+ /* Now issue transmit list */
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_TL, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(len & 0xff, ramBase + NETWAVE_EREG_CB + 1);
+ writeb((len>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
+
+ spin_unlock_irqrestore(&priv->spinlock, flags);
+ return 0;
+}
+
+static netdev_tx_t netwave_start_xmit(struct sk_buff *skb,
+ struct net_device *dev) {
+ /* This flag indicate that the hardware can't perform a transmission.
+ * Theoritically, NET3 check it before sending a packet to the driver,
+ * but in fact it never do that and pool continuously.
+ * As the watchdog will abort too long transmissions, we are quite safe...
+ */
+
+ netif_stop_queue(dev);
+
+ {
+ short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
+ unsigned char* buf = skb->data;
+
+ if (netwave_hw_xmit( buf, length, dev) == 1) {
+ /* Some error, let's make them call us another time? */
+ netif_start_queue(dev);
+ }
+ dev->trans_start = jiffies;
+ }
+ dev_kfree_skb(skb);
+
+ return NETDEV_TX_OK;
+} /* netwave_start_xmit */
+
+/*
+ * Function netwave_interrupt (irq, dev_id)
+ *
+ * This function is the interrupt handler for the Netwave card. This
+ * routine will be called whenever:
+ * 1. A packet is received.
+ * 2. A packet has successfully been transferred and the unit is
+ * ready to transmit another packet.
+ * 3. A command has completed execution.
+ */
+static irqreturn_t netwave_interrupt(int irq, void* dev_id)
+{
+ unsigned int iobase;
+ u_char __iomem *ramBase;
+ struct net_device *dev = (struct net_device *)dev_id;
+ struct netwave_private *priv = netdev_priv(dev);
+ struct pcmcia_device *link = priv->p_dev;
+ int i;
+
+ if (!netif_device_present(dev))
+ return IRQ_NONE;
+
+ iobase = dev->base_addr;
+ ramBase = priv->ramBase;
+
+ /* Now find what caused the interrupt, check while interrupts ready */
+ for (i = 0; i < 10; i++) {
+ u_char status;
+
+ wait_WOC(iobase);
+ if (!(inb(iobase+NETWAVE_REG_CCSR) & 0x02))
+ break; /* None of the interrupt sources asserted (normal exit) */
+
+ status = inb(iobase + NETWAVE_REG_ASR);
+
+ if (!pcmcia_dev_present(link)) {
+ DEBUG(1, "netwave_interrupt: Interrupt with status 0x%x "
+ "from removed or suspended card!\n", status);
+ break;
+ }
+
+ /* RxRdy */
+ if (status & 0x80) {
+ netwave_rx(dev);
+ /* wait_WOC(iobase); */
+ /* RxRdy cannot be reset directly by the host */
+ }
+ /* RxErr */
+ if (status & 0x40) {
+ u_char rser;
+
+ rser = readb(ramBase + NETWAVE_EREG_RSER);
+
+ if (rser & 0x04) {
+ ++dev->stats.rx_dropped;
+ ++dev->stats.rx_crc_errors;
+ }
+ if (rser & 0x02)
+ ++dev->stats.rx_frame_errors;
+
+ /* Clear the RxErr bit in RSER. RSER+4 is the
+ * write part. Also clear the RxCRC (0x04) and
+ * RxBig (0x02) bits if present */
+ wait_WOC(iobase);
+ writeb(0x40 | (rser & 0x06), ramBase + NETWAVE_EREG_RSER + 4);
+
+ /* Write bit 6 high to ASCC to clear RxErr in ASR,
+ * WOC must be set first!
+ */
+ wait_WOC(iobase);
+ writeb(0x40, ramBase + NETWAVE_EREG_ASCC);
+
+ /* Remember to count up dev->stats on error packets */
+ ++dev->stats.rx_errors;
+ }
+ /* TxDN */
+ if (status & 0x20) {
+ int txStatus;
+
+ txStatus = readb(ramBase + NETWAVE_EREG_TSER);
+ DEBUG(3, "Transmit done. TSER = %x id %x\n",
+ txStatus, readb(ramBase + NETWAVE_EREG_TSER + 1));
+
+ if (txStatus & 0x20) {
+ /* Transmitting was okay, clear bits */
+ wait_WOC(iobase);
+ writeb(0x2f, ramBase + NETWAVE_EREG_TSER + 4);
+ ++dev->stats.tx_packets;
+ }
+
+ if (txStatus & 0xd0) {
+ if (txStatus & 0x80) {
+ ++dev->stats.collisions; /* Because of /proc/net/dev*/
+ /* ++dev->stats.tx_aborted_errors; */
+ /* printk("Collision. %ld\n", jiffies - dev->trans_start); */
+ }
+ if (txStatus & 0x40)
+ ++dev->stats.tx_carrier_errors;
+ /* 0x80 TxGU Transmit giveup - nine times and no luck
+ * 0x40 TxNOAP No access point. Discarded packet.
+ * 0x10 TxErr Transmit error. Always set when
+ * TxGU and TxNOAP is set. (Those are the only ones
+ * to set TxErr).
+ */
+ DEBUG(3, "netwave_interrupt: TxDN with error status %x\n",
+ txStatus);
+
+ /* Clear out TxGU, TxNOAP, TxErr and TxTrys */
+ wait_WOC(iobase);
+ writeb(0xdf & txStatus, ramBase+NETWAVE_EREG_TSER+4);
+ ++dev->stats.tx_errors;
+ }
+ DEBUG(3, "New status is TSER %x ASR %x\n",
+ readb(ramBase + NETWAVE_EREG_TSER),
+ inb(iobase + NETWAVE_REG_ASR));
+
+ netif_wake_queue(dev);
+ }
+ /* TxBA, this would trigger on all error packets received */
+ /* if (status & 0x01) {
+ DEBUG(4, "Transmit buffers available, %x\n", status);
+ }
+ */
+ }
+ /* Handled if we looped at least one time - Jean II */
+ return IRQ_RETVAL(i);
+} /* netwave_interrupt */
+
+/*
+ * Function netwave_watchdog (a)
+ *
+ * Watchdog : when we start a transmission, we set a timer in the
+ * kernel. If the transmission complete, this timer is disabled. If
+ * it expire, we reset the card.
+ *
+ */
+static void netwave_watchdog(struct net_device *dev) {
+
+ DEBUG(1, "%s: netwave_watchdog: watchdog timer expired\n", dev->name);
+ netwave_reset(dev);
+ dev->trans_start = jiffies;
+ netif_wake_queue(dev);
+} /* netwave_watchdog */
+
+static int netwave_rx(struct net_device *dev)
+{
+ netwave_private *priv = netdev_priv(dev);
+ u_char __iomem *ramBase = priv->ramBase;
+ unsigned int iobase = dev->base_addr;
+ u_char rxStatus;
+ struct sk_buff *skb = NULL;
+ unsigned int curBuffer,
+ rcvList;
+ int rcvLen;
+ int tmpcount = 0;
+ int dataCount, dataOffset;
+ int i;
+ u_char *ptr;
+
+ DEBUG(3, "xinw_rx: Receiving ... \n");
+
+ /* Receive max 10 packets for now. */
+ for (i = 0; i < 10; i++) {
+ /* Any packets? */
+ wait_WOC(iobase);
+ rxStatus = readb(ramBase + NETWAVE_EREG_RSER);
+ if ( !( rxStatus & 0x80)) /* No more packets */
+ break;
+
+ /* Check if multicast/broadcast or other */
+ /* multicast = (rxStatus & 0x20); */
+
+ /* The receive list pointer and length of the packet */
+ wait_WOC(iobase);
+ rcvLen = get_int16( ramBase + NETWAVE_EREG_RDP);
+ rcvList = get_uint16( ramBase + NETWAVE_EREG_RDP + 2);
+
+ if (rcvLen < 0) {
+ printk(KERN_DEBUG "netwave_rx: Receive packet with len %d\n",
+ rcvLen);
+ return 0;
+ }
+
+ skb = dev_alloc_skb(rcvLen+5);
+ if (skb == NULL) {
+ DEBUG(1, "netwave_rx: Could not allocate an sk_buff of "
+ "length %d\n", rcvLen);
+ ++dev->stats.rx_dropped;
+ /* Tell the adapter to skip the packet */
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
+ return 0;
+ }
+
+ skb_reserve( skb, 2); /* Align IP on 16 byte */
+ skb_put( skb, rcvLen);
+
+ /* Copy packet fragments to the skb data area */
+ ptr = (u_char*) skb->data;
+ curBuffer = rcvList;
+ tmpcount = 0;
+ while ( tmpcount < rcvLen) {
+ /* Get length and offset of current buffer */
+ dataCount = get_uint16( ramBase+curBuffer+2);
+ dataOffset = get_uint16( ramBase+curBuffer+4);
+
+ copy_from_pc( ptr + tmpcount,
+ ramBase+curBuffer+dataOffset, dataCount);
+
+ tmpcount += dataCount;
+
+ /* Point to next buffer */
+ curBuffer = get_uint16(ramBase + curBuffer);
+ }
+
+ skb->protocol = eth_type_trans(skb,dev);
+ /* Queue packet for network layer */
+ netif_rx(skb);
+
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += rcvLen;
+
+ /* Got the packet, tell the adapter to skip it */
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
+ DEBUG(3, "Packet reception ok\n");
+ }
+ return 0;
+}
+
+static int netwave_open(struct net_device *dev) {
+ netwave_private *priv = netdev_priv(dev);
+ struct pcmcia_device *link = priv->p_dev;
+
+ DEBUG(1, "netwave_open: starting.\n");
+
+ if (!pcmcia_dev_present(link))
+ return -ENODEV;
+
+ link->open++;
+
+ netif_start_queue(dev);
+ netwave_reset(dev);
+
+ return 0;
+}
+
+static int netwave_close(struct net_device *dev) {
+ netwave_private *priv = netdev_priv(dev);
+ struct pcmcia_device *link = priv->p_dev;
+
+ DEBUG(1, "netwave_close: finishing.\n");
+
+ link->open--;
+ netif_stop_queue(dev);
+
+ return 0;
+}
+
+static struct pcmcia_device_id netwave_ids[] = {
+ PCMCIA_DEVICE_PROD_ID12("Xircom", "CreditCard Netwave", 0x2e3ee845, 0x54e28a28),
+ PCMCIA_DEVICE_NULL,
+};
+MODULE_DEVICE_TABLE(pcmcia, netwave_ids);
+
+static struct pcmcia_driver netwave_driver = {
+ .owner = THIS_MODULE,
+ .drv = {
+ .name = "netwave_cs",
+ },
+ .probe = netwave_probe,
+ .remove = netwave_detach,
+ .id_table = netwave_ids,
+ .suspend = netwave_suspend,
+ .resume = netwave_resume,
+};
+
+static int __init init_netwave_cs(void)
+{
+ return pcmcia_register_driver(&netwave_driver);
+}
+
+static void __exit exit_netwave_cs(void)
+{
+ pcmcia_unregister_driver(&netwave_driver);
+}
+
+module_init(init_netwave_cs);
+module_exit(exit_netwave_cs);
+
+/* Set or clear the multicast filter for this adaptor.
+ num_addrs == -1 Promiscuous mode, receive all packets
+ num_addrs == 0 Normal mode, clear multicast list
+ num_addrs > 0 Multicast mode, receive normal and MC packets, and do
+ best-effort filtering.
+ */
+static void set_multicast_list(struct net_device *dev)
+{
+ unsigned int iobase = dev->base_addr;
+ netwave_private *priv = netdev_priv(dev);
+ u_char __iomem * ramBase = priv->ramBase;
+ u_char rcvMode = 0;
+
+#ifdef PCMCIA_DEBUG
+ if (pc_debug > 2) {
+ static int old;
+ if (old != dev->mc_count) {
+ old = dev->mc_count;
+ DEBUG(0, "%s: setting Rx mode to %d addresses.\n",
+ dev->name, dev->mc_count);
+ }
+ }
+#endif
+
+ if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) {
+ /* Multicast Mode */
+ rcvMode = rxConfRxEna + rxConfAMP + rxConfBcast;
+ } else if (dev->flags & IFF_PROMISC) {
+ /* Promiscous mode */
+ rcvMode = rxConfRxEna + rxConfPro + rxConfAMP + rxConfBcast;
+ } else {
+ /* Normal mode */
+ rcvMode = rxConfRxEna + rxConfBcast;
+ }
+
+ /* printk("netwave set_multicast_list: rcvMode to %x\n", rcvMode);*/
+ /* Now set receive mode */
+ wait_WOC(iobase);
+ writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0);
+ writeb(rcvMode, ramBase + NETWAVE_EREG_CB + 1);
+ writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
+}
+MODULE_LICENSE("GPL");
--
1.6.2.5
^ permalink raw reply related [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-20 5:17 [PATCH 1/4] strip: move driver to staging John W. Linville
2009-10-20 5:17 ` [PATCH 2/4] arlan: " John W. Linville
@ 2009-10-20 16:06 ` Randy Dunlap
2009-10-26 16:46 ` John W. Linville
2009-10-23 16:10 ` Pavel Machek
2 siblings, 1 reply; 33+ messages in thread
From: Randy Dunlap @ 2009-10-20 16:06 UTC (permalink / raw)
To: John W. Linville; +Cc: linux-kernel, gregkh
On Tue, 20 Oct 2009 14:17:07 +0900 John W. Linville wrote:
> Move the strip ("Starmode Radio IP") driver to drivers/staging. For
> several years this driver has only seen API "bombing-run" changes, and
> few people ever had the hardware. This driver represents unnecessary
> ongoing maintenance for no clear benefit.
>
> This patch brought to you by the "hacking" session at the 2009 Kernel
> Summit in Tokyo, Japan...
is drivers/staging/ a temporary home or a permanent home?
so no explanation of what it means to be in drivers/staging/ and
no warning to users? either in Kconfig or in feature-removal-schedule.txt?
> Signed-off-by: John W. Linville <linville@tuxdriver.com>
> ---
> drivers/net/wireless/Kconfig | 23 -
> drivers/net/wireless/Makefile | 1 -
> drivers/net/wireless/strip.c | 2805 ----------------------------------------
> drivers/staging/Kconfig | 2 +
> drivers/staging/Makefile | 1 +
> drivers/staging/strip/Kconfig | 22 +
> drivers/staging/strip/Makefile | 1 +
> drivers/staging/strip/strip.c | 2805 ++++++++++++++++++++++++++++++++++++++++
> 8 files changed, 2831 insertions(+), 2829 deletions(-)
> delete mode 100644 drivers/net/wireless/strip.c
> create mode 100644 drivers/staging/strip/Kconfig
> create mode 100644 drivers/staging/strip/Makefile
> create mode 100644 drivers/staging/strip/strip.c
---
~Randy
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-20 5:17 [PATCH 1/4] strip: move driver to staging John W. Linville
2009-10-20 5:17 ` [PATCH 2/4] arlan: " John W. Linville
2009-10-20 16:06 ` [PATCH 1/4] strip: " Randy Dunlap
@ 2009-10-23 16:10 ` Pavel Machek
2009-10-23 16:54 ` Alan Cox
2009-10-26 16:55 ` John W. Linville
2 siblings, 2 replies; 33+ messages in thread
From: Pavel Machek @ 2009-10-23 16:10 UTC (permalink / raw)
To: John W. Linville; +Cc: linux-kernel, gregkh
On Tue 2009-10-20 14:17:07, John W. Linville wrote:
> Move the strip ("Starmode Radio IP") driver to drivers/staging. For
> several years this driver has only seen API "bombing-run" changes, and
> few people ever had the hardware. This driver represents unnecessary
> ongoing maintenance for no clear benefit.
This seems like abuse of the staging process.
There's no TODO to say what needs to be fixed. You just don't want to
maintain it. Because there's nothing to fix, noone has reason to patch
it, and the (working, good enough) driver will just be removed.
It also marks driver as broken when it is not...
What about removing it in the regular way, that's
Documentation/feature-removal.txt ?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-23 16:10 ` Pavel Machek
@ 2009-10-23 16:54 ` Alan Cox
2009-10-26 16:55 ` John W. Linville
1 sibling, 0 replies; 33+ messages in thread
From: Alan Cox @ 2009-10-23 16:54 UTC (permalink / raw)
To: Pavel Machek; +Cc: John W. Linville, linux-kernel, gregkh
> It also marks driver as broken when it is not...
Given the changes since anyone last used it I would assume it is.
>
> What about removing it in the regular way, that's
> Documentation/feature-removal.txt ?
I'd go with that. And remove it ASAP along with about twenty other
similar 'ex drivers'
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-20 16:06 ` [PATCH 1/4] strip: " Randy Dunlap
@ 2009-10-26 16:46 ` John W. Linville
2009-10-26 17:02 ` Randy Dunlap
0 siblings, 1 reply; 33+ messages in thread
From: John W. Linville @ 2009-10-26 16:46 UTC (permalink / raw)
To: Randy Dunlap; +Cc: linux-kernel, gregkh
On Tue, Oct 20, 2009 at 09:06:27AM -0700, Randy Dunlap wrote:
> On Tue, 20 Oct 2009 14:17:07 +0900 John W. Linville wrote:
>
> > Move the strip ("Starmode Radio IP") driver to drivers/staging. For
> > several years this driver has only seen API "bombing-run" changes, and
> > few people ever had the hardware. This driver represents unnecessary
> > ongoing maintenance for no clear benefit.
> >
> > This patch brought to you by the "hacking" session at the 2009 Kernel
> > Summit in Tokyo, Japan...
>
> is drivers/staging/ a temporary home or a permanent home?
I would presume it to be "permanent until removed"...
> so no explanation of what it means to be in drivers/staging/ and
> no warning to users? either in Kconfig or in feature-removal-schedule.txt?
Moving it to staging _is_ the warning. As for the removal schedule,
I imagined that Greg would "do the needful" before actually removing
the driver.
John
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-23 16:10 ` Pavel Machek
2009-10-23 16:54 ` Alan Cox
@ 2009-10-26 16:55 ` John W. Linville
2009-10-26 17:18 ` david
2009-10-26 17:24 ` Pavel Machek
1 sibling, 2 replies; 33+ messages in thread
From: John W. Linville @ 2009-10-26 16:55 UTC (permalink / raw)
To: Pavel Machek; +Cc: linux-kernel, gregkh
On Fri, Oct 23, 2009 at 06:10:06PM +0200, Pavel Machek wrote:
> On Tue 2009-10-20 14:17:07, John W. Linville wrote:
> > Move the strip ("Starmode Radio IP") driver to drivers/staging. For
> > several years this driver has only seen API "bombing-run" changes, and
> > few people ever had the hardware. This driver represents unnecessary
> > ongoing maintenance for no clear benefit.
>
> This seems like abuse of the staging process.
My mailbox has been filling-up with discussions of using staging like
this for the past few weeks. I'm reasonably certain those threads
were on the public lists.
> There's no TODO to say what needs to be fixed. You just don't want to
> maintain it. Because there's nothing to fix, noone has reason to patch
> it, and the (working, good enough) driver will just be removed.
"ongoing maintenance for no clear benefit" -- that is what is wrong
with it.
> It also marks driver as broken when it is not...
I didn't mark it broken, I proposed moving it to staging. As for
whether or not it actually is broken, how do you know?
The drivers in this thread are for pre-802.11 devices -- old ones
(e.g. ISA) at that. If we actually have users that are willing
to maintain them then maybe that is fine. But I don't see the
benefit of maintaining these simply as extra targets for API change
"bombing runs"...
> What about removing it in the regular way, that's
> Documentation/feature-removal.txt ?
This has been discussed recently as an alternative for unmaintained
drivers. I suspect this is better than adding a note to a file that
no one reads...
John
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 16:46 ` John W. Linville
@ 2009-10-26 17:02 ` Randy Dunlap
2009-10-26 18:48 ` Greg KH
0 siblings, 1 reply; 33+ messages in thread
From: Randy Dunlap @ 2009-10-26 17:02 UTC (permalink / raw)
To: John W. Linville; +Cc: linux-kernel, gregkh
On Mon, 26 Oct 2009 12:46:45 -0400 John W. Linville wrote:
> On Tue, Oct 20, 2009 at 09:06:27AM -0700, Randy Dunlap wrote:
> > On Tue, 20 Oct 2009 14:17:07 +0900 John W. Linville wrote:
> >
> > > Move the strip ("Starmode Radio IP") driver to drivers/staging. For
> > > several years this driver has only seen API "bombing-run" changes, and
> > > few people ever had the hardware. This driver represents unnecessary
> > > ongoing maintenance for no clear benefit.
> > >
> > > This patch brought to you by the "hacking" session at the 2009 Kernel
> > > Summit in Tokyo, Japan...
> >
> > is drivers/staging/ a temporary home or a permanent home?
>
> I would presume it to be "permanent until removed"...
>
> > so no explanation of what it means to be in drivers/staging/ and
> > no warning to users? either in Kconfig or in feature-removal-schedule.txt?
>
> Moving it to staging _is_ the warning.
Nah. Maybe it is for developers, but not for users (IMO of course).
> As for the removal schedule,
> I imagined that Greg would "do the needful" before actually removing
> the driver.
He usually wants patches, but that's up to him.
---
~Randy
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 16:55 ` John W. Linville
@ 2009-10-26 17:18 ` david
2009-10-26 17:43 ` John W. Linville
2009-10-26 18:47 ` Greg KH
2009-10-26 17:24 ` Pavel Machek
1 sibling, 2 replies; 33+ messages in thread
From: david @ 2009-10-26 17:18 UTC (permalink / raw)
To: John W. Linville; +Cc: Pavel Machek, linux-kernel, gregkh
On Mon, 26 Oct 2009, John W. Linville wrote:
> On Fri, Oct 23, 2009 at 06:10:06PM +0200, Pavel Machek wrote:
>> On Tue 2009-10-20 14:17:07, John W. Linville wrote:
>>> Move the strip ("Starmode Radio IP") driver to drivers/staging. For
>>> several years this driver has only seen API "bombing-run" changes, and
>>> few people ever had the hardware. This driver represents unnecessary
>>> ongoing maintenance for no clear benefit.
>>
>> This seems like abuse of the staging process.
>
> My mailbox has been filling-up with discussions of using staging like
> this for the past few weeks. I'm reasonably certain those threads
> were on the public lists.
>
>> There's no TODO to say what needs to be fixed. You just don't want to
>> maintain it. Because there's nothing to fix, noone has reason to patch
>> it, and the (working, good enough) driver will just be removed.
>
> "ongoing maintenance for no clear benefit" -- that is what is wrong
> with it.
supporting existing hardware is no longer a 'clear benifit'?
is this driver broken (as in not working)?
other than the fact that you don't think many people have this hardware,
is there anything wrong with this driver?
>> It also marks driver as broken when it is not...
>
> I didn't mark it broken, I proposed moving it to staging. As for
> whether or not it actually is broken, how do you know?
>
> The drivers in this thread are for pre-802.11 devices -- old ones
> (e.g. ISA) at that. If we actually have users that are willing
> to maintain them then maybe that is fine. But I don't see the
> benefit of maintaining these simply as extra targets for API change
> "bombing runs"...
>
>> What about removing it in the regular way, that's
>> Documentation/feature-removal.txt ?
>
> This has been discussed recently as an alternative for unmaintained
> drivers. I suspect this is better than adding a note to a file that
> no one reads...
this is exactly the type of thing I was afraid would start happening when
I noticed the discussion. when I tried to bring it up I was told that this
would only be used for things that were really broken or otherwise causing
significant problems.
if this driver hasn't been changed other than for blanket API changes, how
is it causing significant problems?
if someone were to claim 'maintainership' and then do nothing other than
complain if someone else were to change an API but not fix this in the
process, how would this be different than the current situation?
David Lang
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 16:55 ` John W. Linville
2009-10-26 17:18 ` david
@ 2009-10-26 17:24 ` Pavel Machek
2009-10-26 17:29 ` Alan Cox
` (2 more replies)
1 sibling, 3 replies; 33+ messages in thread
From: Pavel Machek @ 2009-10-26 17:24 UTC (permalink / raw)
To: John W. Linville; +Cc: linux-kernel, gregkh
On Mon 2009-10-26 12:55:19, John W. Linville wrote:
> On Fri, Oct 23, 2009 at 06:10:06PM +0200, Pavel Machek wrote:
> > On Tue 2009-10-20 14:17:07, John W. Linville wrote:
> > > Move the strip ("Starmode Radio IP") driver to drivers/staging. For
> > > several years this driver has only seen API "bombing-run" changes, and
> > > few people ever had the hardware. This driver represents unnecessary
> > > ongoing maintenance for no clear benefit.
> >
> > This seems like abuse of the staging process.
>
> My mailbox has been filling-up with discussions of using staging like
> this for the past few weeks. I'm reasonably certain those threads
> were on the public lists.
Yes and I skimmed those.
> > There's no TODO to say what needs to be fixed. You just don't want to
> > maintain it. Because there's nothing to fix, noone has reason to patch
> > it, and the (working, good enough) driver will just be removed.
>
> "ongoing maintenance for no clear benefit" -- that is what is wrong
> with it.
And how is moving to staging helping with that?
Anyway, for moving to staging, TODO file describing what needs to be
fixed before it is brought back was listed as a requirement. So it
looks like staging is wrong tool for the job.
> > What about removing it in the regular way, that's
> > Documentation/feature-removal.txt ?
>
> This has been discussed recently as an alternative for unmaintained
> drivers. I suspect this is better than adding a note to a file that
> no one reads...
There are other alternatives, like printk() in module_init...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 17:24 ` Pavel Machek
@ 2009-10-26 17:29 ` Alan Cox
2009-10-26 17:34 ` John W. Linville
2009-10-26 18:48 ` Greg KH
2 siblings, 0 replies; 33+ messages in thread
From: Alan Cox @ 2009-10-26 17:29 UTC (permalink / raw)
To: Pavel Machek; +Cc: John W. Linville, linux-kernel, gregkh
> > This has been discussed recently as an alternative for unmaintained
> > drivers. I suspect this is better than adding a note to a file that
> > no one reads...
>
> There are other alternatives, like printk() in module_init...
Put it in feature removal for tomrrow wait until midnight and then submit
a deletion patch. Like anyone cares about the strip driver
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 17:24 ` Pavel Machek
2009-10-26 17:29 ` Alan Cox
@ 2009-10-26 17:34 ` John W. Linville
2009-10-26 18:48 ` Greg KH
2 siblings, 0 replies; 33+ messages in thread
From: John W. Linville @ 2009-10-26 17:34 UTC (permalink / raw)
To: Pavel Machek; +Cc: linux-kernel, gregkh
On Mon, Oct 26, 2009 at 06:24:34PM +0100, Pavel Machek wrote:
> On Mon 2009-10-26 12:55:19, John W. Linville wrote:
> > On Fri, Oct 23, 2009 at 06:10:06PM +0200, Pavel Machek wrote:
> > > There's no TODO to say what needs to be fixed. You just don't want to
> > > maintain it. Because there's nothing to fix, noone has reason to patch
> > > it, and the (working, good enough) driver will just be removed.
> >
> > "ongoing maintenance for no clear benefit" -- that is what is wrong
> > with it.
>
> And how is moving to staging helping with that?
Because no one is required to protect staging drivers from API-change
breakage.
John
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 17:18 ` david
@ 2009-10-26 17:43 ` John W. Linville
2009-10-26 18:47 ` Greg KH
1 sibling, 0 replies; 33+ messages in thread
From: John W. Linville @ 2009-10-26 17:43 UTC (permalink / raw)
To: david; +Cc: Pavel Machek, linux-kernel, gregkh
On Mon, Oct 26, 2009 at 10:18:20AM -0700, david@lang.hm wrote:
> On Mon, 26 Oct 2009, John W. Linville wrote:
>> "ongoing maintenance for no clear benefit" -- that is what is wrong
>> with it.
>
> supporting existing hardware is no longer a 'clear benifit'?
Do you own or have access to such hardware? If the hardware is
obsolete, unused, and mostly non-existant then what is the benefit
to maintaining a driver that is rotting?
> is this driver broken (as in not working)?
I have no idea. I suspect that you don't know either.
> other than the fact that you don't think many people have this hardware,
> is there anything wrong with this driver?
It sits there, bloating the target area for API maintenance and
providing a likely broken example of how to write Linux drivers.
> if this driver hasn't been changed other than for blanket API changes,
> how is it causing significant problems?
It is a distraction for no clear (or even murky) benefit, one more
thing to keep compiling.
> if someone were to claim 'maintainership' and then do nothing other than
> complain if someone else were to change an API but not fix this in the
> process, how would this be different than the current situation?
Not much different, possibly worse if they created a bigger
distraction. But if they actually had the hardware we might at least
be confident that the effort was in some way worthwhile...
John
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 17:18 ` david
2009-10-26 17:43 ` John W. Linville
@ 2009-10-26 18:47 ` Greg KH
2009-10-27 4:17 ` david
1 sibling, 1 reply; 33+ messages in thread
From: Greg KH @ 2009-10-26 18:47 UTC (permalink / raw)
To: david; +Cc: John W. Linville, Pavel Machek, linux-kernel
On Mon, Oct 26, 2009 at 10:18:20AM -0700, david@lang.hm wrote:
> if someone were to claim 'maintainership' and then do nothing other than
> complain if someone else were to change an API but not fix this in the
> process, how would this be different than the current situation?
A person "claiming maintainership" would then be responsible for keeping
the API up to date and ensuring that the driver worked. To do that,
hardware would probably need to be present.
Do you have this kind of hardware and are willing to accept ownership of
this driver?
thanks,
greg k-h
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 17:24 ` Pavel Machek
2009-10-26 17:29 ` Alan Cox
2009-10-26 17:34 ` John W. Linville
@ 2009-10-26 18:48 ` Greg KH
2009-10-26 19:07 ` Joe Perches
2 siblings, 1 reply; 33+ messages in thread
From: Greg KH @ 2009-10-26 18:48 UTC (permalink / raw)
To: Pavel Machek; +Cc: John W. Linville, linux-kernel
On Mon, Oct 26, 2009 at 06:24:34PM +0100, Pavel Machek wrote:
> Anyway, for moving to staging, TODO file describing what needs to be
> fixed before it is brought back was listed as a requirement. So it
> looks like staging is wrong tool for the job.
I will add such a TODO file.
It will say:
- A maintainer is needed to take ownership of this driver and
they must be willing to maintain and test any future api
changes needed.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 17:02 ` Randy Dunlap
@ 2009-10-26 18:48 ` Greg KH
0 siblings, 0 replies; 33+ messages in thread
From: Greg KH @ 2009-10-26 18:48 UTC (permalink / raw)
To: Randy Dunlap; +Cc: John W. Linville, linux-kernel
On Mon, Oct 26, 2009 at 10:02:35AM -0700, Randy Dunlap wrote:
> On Mon, 26 Oct 2009 12:46:45 -0400 John W. Linville wrote:
>
> > On Tue, Oct 20, 2009 at 09:06:27AM -0700, Randy Dunlap wrote:
> > > On Tue, 20 Oct 2009 14:17:07 +0900 John W. Linville wrote:
> > >
> > > > Move the strip ("Starmode Radio IP") driver to drivers/staging. For
> > > > several years this driver has only seen API "bombing-run" changes, and
> > > > few people ever had the hardware. This driver represents unnecessary
> > > > ongoing maintenance for no clear benefit.
> > > >
> > > > This patch brought to you by the "hacking" session at the 2009 Kernel
> > > > Summit in Tokyo, Japan...
> > >
> > > is drivers/staging/ a temporary home or a permanent home?
> >
> > I would presume it to be "permanent until removed"...
> >
> > > so no explanation of what it means to be in drivers/staging/ and
> > > no warning to users? either in Kconfig or in feature-removal-schedule.txt?
> >
> > Moving it to staging _is_ the warning.
>
> Nah. Maybe it is for developers, but not for users (IMO of course).
>
> > As for the removal schedule,
> > I imagined that Greg would "do the needful" before actually removing
> > the driver.
>
> He usually wants patches, but that's up to him.
Nah, it's trivial for me to delete things on my own :)
thanks,
greg k-h
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 18:48 ` Greg KH
@ 2009-10-26 19:07 ` Joe Perches
2009-10-26 19:17 ` Greg KH
2009-10-26 19:20 ` John W. Linville
0 siblings, 2 replies; 33+ messages in thread
From: Joe Perches @ 2009-10-26 19:07 UTC (permalink / raw)
To: Greg KH; +Cc: Pavel Machek, John W. Linville, linux-kernel
On Mon, 2009-10-26 at 11:48 -0700, Greg KH wrote:
> On Mon, Oct 26, 2009 at 06:24:34PM +0100, Pavel Machek wrote:
> > Anyway, for moving to staging, TODO file describing what needs to be
> > fixed before it is brought back was listed as a requirement.
> - A maintainer is needed to take ownership of this driver and
> they must be willing to maintain and test any future api
> changes needed.
There are a lot of files in the tree without assigned maintainers.
(want a list? ;)
I think adding a requirement that files have maintainers before
being added to not-staging is not a good thing.
It is likely that strip could have be deleted without anyone caring.
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 19:07 ` Joe Perches
@ 2009-10-26 19:17 ` Greg KH
2009-10-26 19:20 ` John W. Linville
1 sibling, 0 replies; 33+ messages in thread
From: Greg KH @ 2009-10-26 19:17 UTC (permalink / raw)
To: Joe Perches; +Cc: Pavel Machek, John W. Linville, linux-kernel
On Mon, Oct 26, 2009 at 12:07:43PM -0700, Joe Perches wrote:
> On Mon, 2009-10-26 at 11:48 -0700, Greg KH wrote:
> > On Mon, Oct 26, 2009 at 06:24:34PM +0100, Pavel Machek wrote:
> > > Anyway, for moving to staging, TODO file describing what needs to be
> > > fixed before it is brought back was listed as a requirement.
> > - A maintainer is needed to take ownership of this driver and
> > they must be willing to maintain and test any future api
> > changes needed.
>
> There are a lot of files in the tree without assigned maintainers.
> (want a list? ;)
>
> I think adding a requirement that files have maintainers before
> being added to not-staging is not a good thing.
>
> It is likely that strip could have be deleted without anyone caring.
Ok, then we can delete it, but I was trying to be nice here and provide
a way for people to "rescue" it with a nice announcement and grace
period.
Geesh, see what I get for being nice...
greg k-h
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 19:07 ` Joe Perches
2009-10-26 19:17 ` Greg KH
@ 2009-10-26 19:20 ` John W. Linville
2009-10-26 19:36 ` Greg KH
2009-10-26 20:06 ` Joe Perches
1 sibling, 2 replies; 33+ messages in thread
From: John W. Linville @ 2009-10-26 19:20 UTC (permalink / raw)
To: Joe Perches; +Cc: Greg KH, Pavel Machek, linux-kernel
On Mon, Oct 26, 2009 at 12:07:43PM -0700, Joe Perches wrote:
> On Mon, 2009-10-26 at 11:48 -0700, Greg KH wrote:
> > On Mon, Oct 26, 2009 at 06:24:34PM +0100, Pavel Machek wrote:
> > > Anyway, for moving to staging, TODO file describing what needs to be
> > > fixed before it is brought back was listed as a requirement.
> > - A maintainer is needed to take ownership of this driver and
> > they must be willing to maintain and test any future api
> > changes needed.
>
> There are a lot of files in the tree without assigned maintainers.
> (want a list? ;)
>
> I think adding a requirement that files have maintainers before
> being added to not-staging is not a good thing.
This is not a blanket policy. Please don't imply that it is.
> It is likely that strip could have be deleted without anyone caring.
Perhaps so...how would that be better? It would be less work for Greg,
but he seems to be fine with this...
John
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 19:20 ` John W. Linville
@ 2009-10-26 19:36 ` Greg KH
2009-10-26 20:06 ` Joe Perches
1 sibling, 0 replies; 33+ messages in thread
From: Greg KH @ 2009-10-26 19:36 UTC (permalink / raw)
To: John W. Linville; +Cc: Joe Perches, Pavel Machek, linux-kernel
On Mon, Oct 26, 2009 at 03:20:26PM -0400, John W. Linville wrote:
> On Mon, Oct 26, 2009 at 12:07:43PM -0700, Joe Perches wrote:
> > On Mon, 2009-10-26 at 11:48 -0700, Greg KH wrote:
> > > On Mon, Oct 26, 2009 at 06:24:34PM +0100, Pavel Machek wrote:
> > > > Anyway, for moving to staging, TODO file describing what needs to be
> > > > fixed before it is brought back was listed as a requirement.
> > > - A maintainer is needed to take ownership of this driver and
> > > they must be willing to maintain and test any future api
> > > changes needed.
> >
> > There are a lot of files in the tree without assigned maintainers.
> > (want a list? ;)
> >
> > I think adding a requirement that files have maintainers before
> > being added to not-staging is not a good thing.
>
> This is not a blanket policy. Please don't imply that it is.
>
> > It is likely that strip could have be deleted without anyone caring.
>
> Perhaps so...how would that be better? It would be less work for Greg,
> but he seems to be fine with this...
Exactly, why are people who are not doing any work with these devices,
suddenly worried about any additional work for me? As if people care
about my patch workload suddenly :)
As everyone here has no problem with this specific driver, or the other
ones posted, why is there even any discussion?
thanks,
greg k-h
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 19:20 ` John W. Linville
2009-10-26 19:36 ` Greg KH
@ 2009-10-26 20:06 ` Joe Perches
1 sibling, 0 replies; 33+ messages in thread
From: Joe Perches @ 2009-10-26 20:06 UTC (permalink / raw)
To: John W. Linville; +Cc: Greg KH, Pavel Machek, linux-kernel
(forgot the reply-all)
On Mon, 2009-10-26 at 15:20 -0400, John W. Linville wrote:
> On Mon, Oct 26, 2009 at 12:07:43PM -0700, Joe Perches wrote:
> > I think adding a requirement that files have maintainers before
> > being added to not-staging is not a good thing.
> This is not a blanket policy. Please don't imply that it is.
I believe it's an unnecessary precedent.
> > It is likely that strip could have be deleted without anyone caring.
>
> Perhaps so...how would that be better? It would be less work for Greg,
> but he seems to be fine with this...
It's fine by me if it moves to staging.
It's fine by me if it simply disappears as well.
It's fine by me if Greg works all he wants.
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-26 18:47 ` Greg KH
@ 2009-10-27 4:17 ` david
2009-10-27 5:21 ` David Miller
` (2 more replies)
0 siblings, 3 replies; 33+ messages in thread
From: david @ 2009-10-27 4:17 UTC (permalink / raw)
To: Greg KH; +Cc: John W. Linville, Pavel Machek, linux-kernel
On Mon, 26 Oct 2009, Greg KH wrote:
> On Mon, Oct 26, 2009 at 10:18:20AM -0700, david@lang.hm wrote:
>> if someone were to claim 'maintainership' and then do nothing other than
>> complain if someone else were to change an API but not fix this in the
>> process, how would this be different than the current situation?
>
> A person "claiming maintainership" would then be responsible for keeping
> the API up to date and ensuring that the driver worked. To do that,
> hardware would probably need to be present.
actually, I understood that the person changing the API was responsible
for making the changes. when did this change?
> Do you have this kind of hardware and are willing to accept ownership of
> this driver?
no, I do not have the hardware, but if there are no bugs reported against
this driverit would seem that having a 'maintainer' who made absolutly no
changes to the driver (just allowing API changes by others to be
implemented) would be the same thing as having no maintainer, but in the
first case you are willing to have the driver in the kernel, in the other
you want to rip it out.
it used to be (not that long ago) that when people said that the reason
they didn't push their driver upstream into the kernel because there
wasn't that much demand for it, the response was that we wanted drivers
for everything, no matter how small the user base. I remember seeing posts
from core developers saying that we had drivers for hardware where there
were only single digit quantities ever built.
now it appears that you have to have 'enough' users (an amount undefined)
or a person to specificly take maintainership of the driver to keep it in.
prior to the kernel summit, the criteria for having something moved out of
the kernel into staging was for fairly significant problems (with a sloppy
edge of 'or an unreasonable maintinance burden')
I don't think anyone who read that would have thought that 'an
unreasonable maintinance burden' could be "I don't want to change this
driver when I change an API"
for old hardware the driver _should_ be static except for API changes. the
hardware isn't changing, why should the driver.
David Lang
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-27 4:17 ` david
@ 2009-10-27 5:21 ` David Miller
2009-10-27 8:34 ` Stefan Richter
2009-10-27 14:08 ` Greg KH
2 siblings, 0 replies; 33+ messages in thread
From: David Miller @ 2009-10-27 5:21 UTC (permalink / raw)
To: david; +Cc: gregkh, linville, pavel, linux-kernel
From: david@lang.hm
Date: Mon, 26 Oct 2009 21:17:55 -0700 (PDT)
> On Mon, 26 Oct 2009, Greg KH wrote:
>
>> Do you have this kind of hardware and are willing to accept ownership
>> of
>> this driver?
>
> no, I do not have the hardware, but if there are no bugs reported
> against this driverit would seem that having a 'maintainer' who made
> absolutly no changes to the driver (just allowing API changes by
> others to be implemented) would be the same thing as having no
> maintainer, but in the first case you are willing to have the driver
> in the kernel, in the other you want to rip it out.
Nobody is using this driver, and we're pretty damn confident
of that.
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-27 4:17 ` david
2009-10-27 5:21 ` David Miller
@ 2009-10-27 8:34 ` Stefan Richter
2009-10-27 14:08 ` Greg KH
2 siblings, 0 replies; 33+ messages in thread
From: Stefan Richter @ 2009-10-27 8:34 UTC (permalink / raw)
To: david; +Cc: Greg KH, John W. Linville, Pavel Machek, linux-kernel
david@lang.hm wrote:
> On Mon, 26 Oct 2009, Greg KH wrote:
>> A person "claiming maintainership" would then be responsible for keeping
>> the API up to date and ensuring that the driver worked. To do that,
>> hardware would probably need to be present.
>
> actually, I understood that the person changing the API was responsible
> for making the changes. when did this change?
I'm not sure what the procedure with drivers/staging/ is, which is a
middle ground between in-tree and out-of-tree. For in-tree code, last
time I watched the procedure was thus:
- Those who change an infrastructure are responsible to /code/ the
necessary changes in all infrastructure using subsystems.
- Usually they are also responsible to submit those changes upstream;
if the change is done in a source-compatible manner during a transition
period, then those API changes in dependent subsystems are sometimes
submitted via the respective subsystem maintainers instead, but that's
not typical.
- Those who introduce such changes usually cannot be expected to
runtime-test except with one or few subsystems for which they happen to
have matching hardware. Thus, a small but real danger of regressions
remains. Usually only the subsystem maintainer or users can detect and
fix such regressions.
But remember, there are no formal rules, there are only "best
practices". (And sometimes new procedures are tried out in order to
find out whether they work or not, such as the 2.4+2.5 -> 2.6 switch of
development models, the merge window, linux-next, drivers/staging/ as a
way in for out-of-tree drivers, drivers/staging as a way out for broken
or obsolete drivers...)
--
Stefan Richter
-=====-==--= =-=- ==-==
http://arcgraph.de/sr/
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-27 4:17 ` david
2009-10-27 5:21 ` David Miller
2009-10-27 8:34 ` Stefan Richter
@ 2009-10-27 14:08 ` Greg KH
2009-10-27 18:39 ` david
2 siblings, 1 reply; 33+ messages in thread
From: Greg KH @ 2009-10-27 14:08 UTC (permalink / raw)
To: david; +Cc: John W. Linville, Pavel Machek, linux-kernel
On Mon, Oct 26, 2009 at 09:17:55PM -0700, david@lang.hm wrote:
> On Mon, 26 Oct 2009, Greg KH wrote:
>
> > On Mon, Oct 26, 2009 at 10:18:20AM -0700, david@lang.hm wrote:
> >> if someone were to claim 'maintainership' and then do nothing other than
> >> complain if someone else were to change an API but not fix this in the
> >> process, how would this be different than the current situation?
> >
> > A person "claiming maintainership" would then be responsible for keeping
> > the API up to date and ensuring that the driver worked. To do that,
> > hardware would probably need to be present.
>
> actually, I understood that the person changing the API was responsible
> for making the changes. when did this change?
It did not.
> > Do you have this kind of hardware and are willing to accept ownership of
> > this driver?
>
> no, I do not have the hardware, but if there are no bugs reported against
> this driverit would seem that having a 'maintainer' who made absolutly no
> changes to the driver (just allowing API changes by others to be
> implemented) would be the same thing as having no maintainer, but in the
> first case you are willing to have the driver in the kernel, in the other
> you want to rip it out.
>
> it used to be (not that long ago) that when people said that the reason
> they didn't push their driver upstream into the kernel because there
> wasn't that much demand for it, the response was that we wanted drivers
> for everything, no matter how small the user base. I remember seeing posts
> from core developers saying that we had drivers for hardware where there
> were only single digit quantities ever built.
>
> now it appears that you have to have 'enough' users (an amount undefined)
That amount would be 1. This driver does not have that, so it can be
removed.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-27 14:08 ` Greg KH
@ 2009-10-27 18:39 ` david
2009-10-27 20:38 ` Greg KH
` (2 more replies)
0 siblings, 3 replies; 33+ messages in thread
From: david @ 2009-10-27 18:39 UTC (permalink / raw)
To: Greg KH; +Cc: John W. Linville, Pavel Machek, linux-kernel
On Tue, 27 Oct 2009, Greg KH wrote:
> On Mon, Oct 26, 2009 at 09:17:55PM -0700, david@lang.hm wrote:
>> On Mon, 26 Oct 2009, Greg KH wrote:
>>
>>> On Mon, Oct 26, 2009 at 10:18:20AM -0700, david@lang.hm wrote:
>>>> if someone were to claim 'maintainership' and then do nothing other than
>>>> complain if someone else were to change an API but not fix this in the
>>>> process, how would this be different than the current situation?
>>>
>>> A person "claiming maintainership" would then be responsible for keeping
>>> the API up to date and ensuring that the driver worked. To do that,
>>> hardware would probably need to be present.
>>
>> actually, I understood that the person changing the API was responsible
>> for making the changes. when did this change?
>
> It did not.
>
>>> Do you have this kind of hardware and are willing to accept ownership of
>>> this driver?
>>
>> no, I do not have the hardware, but if there are no bugs reported against
>> this driverit would seem that having a 'maintainer' who made absolutly no
>> changes to the driver (just allowing API changes by others to be
>> implemented) would be the same thing as having no maintainer, but in the
>> first case you are willing to have the driver in the kernel, in the other
>> you want to rip it out.
>>
>> it used to be (not that long ago) that when people said that the reason
>> they didn't push their driver upstream into the kernel because there
>> wasn't that much demand for it, the response was that we wanted drivers
>> for everything, no matter how small the user base. I remember seeing posts
>> from core developers saying that we had drivers for hardware where there
>> were only single digit quantities ever built.
>>
>> now it appears that you have to have 'enough' users (an amount undefined)
>
> That amount would be 1. This driver does not have that, so it can be
> removed.
while I definantly agree that this driver is unlikly to have many users,
unless it is known broken (which David Miller has stated that it is, but
had not been mentioned previously in this thread), how can you know that
the number of users has dropped below 1?
David Lang
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: Staging: netwave: move driver to staging
2009-10-20 5:17 ` [PATCH 4/4] netwave: " John W. Linville
@ 2009-10-27 20:36 ` Greg KH
2009-10-27 21:05 ` John W. Linville
0 siblings, 1 reply; 33+ messages in thread
From: Greg KH @ 2009-10-27 20:36 UTC (permalink / raw)
To: John W. Linville; +Cc: linux-kernel, gregkh
On Tue, Oct 20, 2009 at 02:17:10PM +0900, John W. Linville wrote:
> -menuconfig WLAN_80211
If you are removing this config option, what should we use to depend on
the wireless stack? This is what the staging wireless drivers use,
should they be changed to use something else?
thanks,
greg k-h
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-27 18:39 ` david
@ 2009-10-27 20:38 ` Greg KH
2009-10-27 21:13 ` John W. Linville
2009-10-27 21:32 ` Alan Cox
2 siblings, 0 replies; 33+ messages in thread
From: Greg KH @ 2009-10-27 20:38 UTC (permalink / raw)
To: david; +Cc: John W. Linville, Pavel Machek, linux-kernel
On Tue, Oct 27, 2009 at 11:39:54AM -0700, david@lang.hm wrote:
> >> now it appears that you have to have 'enough' users (an amount undefined)
> >
> > That amount would be 1. This driver does not have that, so it can be
> > removed.
>
> while I definantly agree that this driver is unlikly to have many users,
> unless it is known broken (which David Miller has stated that it is, but
> had not been mentioned previously in this thread), how can you know that
> the number of users has dropped below 1?
As the driver is known to be broken, I would think that the number of
users has dropped below 1 :)
And again, if someone for this driver shows up, it is _trivial_ to add
it back to the tree.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: Staging: netwave: move driver to staging
2009-10-27 20:36 ` Staging: " Greg KH
@ 2009-10-27 21:05 ` John W. Linville
2009-10-27 22:12 ` Greg KH
0 siblings, 1 reply; 33+ messages in thread
From: John W. Linville @ 2009-10-27 21:05 UTC (permalink / raw)
To: Greg KH; +Cc: linux-kernel, gregkh
On Tue, Oct 27, 2009 at 01:36:43PM -0700, Greg KH wrote:
> On Tue, Oct 20, 2009 at 02:17:10PM +0900, John W. Linville wrote:
> > -menuconfig WLAN_80211
>
> If you are removing this config option, what should we use to depend on
> the wireless stack? This is what the staging wireless drivers use,
> should they be changed to use something else?
Hmmm...probably WLAN will do. I should probably make that depend on NETDEVICES as well...
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-27 18:39 ` david
2009-10-27 20:38 ` Greg KH
@ 2009-10-27 21:13 ` John W. Linville
2009-10-27 21:32 ` Alan Cox
2 siblings, 0 replies; 33+ messages in thread
From: John W. Linville @ 2009-10-27 21:13 UTC (permalink / raw)
To: david; +Cc: Greg KH, Pavel Machek, linux-kernel
On Tue, Oct 27, 2009 at 11:39:54AM -0700, david@lang.hm wrote:
> while I definantly agree that this driver is unlikly to have many users,
> unless it is known broken (which David Miller has stated that it is, but
> had not been mentioned previously in this thread), how can you know that
> the number of users has dropped below 1?
You are free to disagree, but IMHO these devices are so unlikely to
still be in use that the burden of proof of whether or not the driver
works lies upon a forthcoming user. Further, such a user needs to
be at least willing to test patches and probably needs to be in a
position to analyze most "normal" problems that might materialize.
IOW, such a user needs to be a de facto maintainer.
Blindly holding onto a driver not which not only has no known users
but which is believed to have no users at all merely because we can't
_prove_ it is broken is just a waste of resources.
John
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: [PATCH 1/4] strip: move driver to staging
2009-10-27 18:39 ` david
2009-10-27 20:38 ` Greg KH
2009-10-27 21:13 ` John W. Linville
@ 2009-10-27 21:32 ` Alan Cox
2 siblings, 0 replies; 33+ messages in thread
From: Alan Cox @ 2009-10-27 21:32 UTC (permalink / raw)
To: david; +Cc: Greg KH, John W. Linville, Pavel Machek, linux-kernel
O> while I definantly agree that this driver is unlikly to have many users,
> unless it is known broken (which David Miller has stated that it is, but
> had not been mentioned previously in this thread), how can you know that
> the number of users has dropped below 1?
By the fact it never turns up in bugzilla, in kernel questions or
in google - and then by deleting it and checking for screaming noises.
Do you have a better testing procedure ?
^ permalink raw reply [flat|nested] 33+ messages in thread
* Re: Staging: netwave: move driver to staging
2009-10-27 21:05 ` John W. Linville
@ 2009-10-27 22:12 ` Greg KH
0 siblings, 0 replies; 33+ messages in thread
From: Greg KH @ 2009-10-27 22:12 UTC (permalink / raw)
To: John W. Linville; +Cc: linux-kernel, gregkh
On Tue, Oct 27, 2009 at 05:05:54PM -0400, John W. Linville wrote:
> On Tue, Oct 27, 2009 at 01:36:43PM -0700, Greg KH wrote:
> > On Tue, Oct 20, 2009 at 02:17:10PM +0900, John W. Linville wrote:
> > > -menuconfig WLAN_80211
> >
> > If you are removing this config option, what should we use to depend on
> > the wireless stack? This is what the staging wireless drivers use,
> > should they be changed to use something else?
>
> Hmmm...probably WLAN will do. I should probably make that depend on NETDEVICES as well...
Ok, I'll go change the staging drivers now to depend on that so they
don't "disappear" when this change goes through your tree.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 33+ messages in thread
end of thread, other threads:[~2009-10-27 22:32 UTC | newest]
Thread overview: 33+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-10-20 5:17 [PATCH 1/4] strip: move driver to staging John W. Linville
2009-10-20 5:17 ` [PATCH 2/4] arlan: " John W. Linville
[not found] ` <1256015830-12700-3-git-send-email-linville@tuxdriver.com>
2009-10-20 5:17 ` [PATCH 4/4] netwave: " John W. Linville
2009-10-27 20:36 ` Staging: " Greg KH
2009-10-27 21:05 ` John W. Linville
2009-10-27 22:12 ` Greg KH
2009-10-20 16:06 ` [PATCH 1/4] strip: " Randy Dunlap
2009-10-26 16:46 ` John W. Linville
2009-10-26 17:02 ` Randy Dunlap
2009-10-26 18:48 ` Greg KH
2009-10-23 16:10 ` Pavel Machek
2009-10-23 16:54 ` Alan Cox
2009-10-26 16:55 ` John W. Linville
2009-10-26 17:18 ` david
2009-10-26 17:43 ` John W. Linville
2009-10-26 18:47 ` Greg KH
2009-10-27 4:17 ` david
2009-10-27 5:21 ` David Miller
2009-10-27 8:34 ` Stefan Richter
2009-10-27 14:08 ` Greg KH
2009-10-27 18:39 ` david
2009-10-27 20:38 ` Greg KH
2009-10-27 21:13 ` John W. Linville
2009-10-27 21:32 ` Alan Cox
2009-10-26 17:24 ` Pavel Machek
2009-10-26 17:29 ` Alan Cox
2009-10-26 17:34 ` John W. Linville
2009-10-26 18:48 ` Greg KH
2009-10-26 19:07 ` Joe Perches
2009-10-26 19:17 ` Greg KH
2009-10-26 19:20 ` John W. Linville
2009-10-26 19:36 ` Greg KH
2009-10-26 20:06 ` Joe Perches
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