* [PATCH 0/6] I8K and Toshiba legacy driver cleanup
@ 2005-04-27 6:49 Dmitry Torokhov
2005-04-27 6:50 ` [PATCH 1/6] Toshiba " Dmitry Torokhov
` (5 more replies)
0 siblings, 6 replies; 11+ messages in thread
From: Dmitry Torokhov @ 2005-04-27 6:49 UTC (permalink / raw)
To: Andrew Morton, LKML
Hi Andrew,
I have several patches cleaning up Toshiba and I8K drivers a bit and I
was wondering if you could add them to -mm. I8K patches have been sent
to LKML earlier and were tested (although I have dropped sysfs export
patch, there were some objections from Greg).
01-toshiba-cleanup
Toshiba legacy driver cleanup:
- use module_init/module_exit for initialization instead of using
#ifdef MODULE and calling tosh_init manually from drivers/char/misc.c
- do not explicitly initialize static variables
- some whitespace and formatting cleanups
02-i8k-lindent.patch
- pass through Lindent to change 4 spaces identation to TABs
03-i8k-use-dmi.patch
- Change to use stock dmi infrastructure instead of homegrown
parsing code. The driver now requires box's DMI data to match
list of supported models so driver can be safely compiled-in
by default without fear of it poking into random SMM BIOS
code. DMI checks can be ignored with i8k.ignore_dmi option.
04-i8k-seqfile.patch
- Change proc code to use seq_file.
05-i8k-cleanup.patch
- use module_{init|exit} instead of old style #ifdef MODULE
code, some formatting changes
06-i8k-new-signatures.patch
- add BIOS signatures of a newer Dell laptops, also there can be
more than one temperature sensor reported by BIOS.
Thanks!
--
Dmitry
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 1/6] Toshiba driver cleanup
2005-04-27 6:49 [PATCH 0/6] I8K and Toshiba legacy driver cleanup Dmitry Torokhov
@ 2005-04-27 6:50 ` Dmitry Torokhov
2005-04-27 7:33 ` Andrew Morton
2005-04-27 6:52 ` [PATCH 2/6] I8K: pass through lindent Dmitry Torokhov
` (4 subsequent siblings)
5 siblings, 1 reply; 11+ messages in thread
From: Dmitry Torokhov @ 2005-04-27 6:50 UTC (permalink / raw)
To: Andrew Morton; +Cc: LKML
Toshiba legacy driver cleanup:
- use module_init/module_exit for initialization instead of using
#ifdef MODULE and calling tosh_init manually from drivers/char/misc.c
- do not explicitly initialize static variables
- some whitespace and formatting cleanups
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
misc.c | 4 ----
toshiba.c | 60 ++++++++++++++++++++++++------------------------------------
2 files changed, 24 insertions(+), 40 deletions(-)
Index: dtor/drivers/char/toshiba.c
===================================================================
--- dtor.orig/drivers/char/toshiba.c
+++ dtor/drivers/char/toshiba.c
@@ -73,16 +73,20 @@
#define TOSH_MINOR_DEV 181
-static int tosh_id = 0x0000;
-static int tosh_bios = 0x0000;
-static int tosh_date = 0x0000;
-static int tosh_sci = 0x0000;
-static int tosh_fan = 0;
-
-static int tosh_fn = 0;
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jonathan Buzzard <jonathan@buzzard.org.uk>");
+MODULE_DESCRIPTION("Toshiba laptop SMM driver");
+MODULE_SUPPORTED_DEVICE("toshiba");
-module_param(tosh_fn, int, 0);
+static int tosh_fn;
+module_param(fn, int, 0);
+MODULE_PARM_DESC(tosh_fn, "User specified Fn key detection port");
+static int tosh_id;
+static int tosh_bios;
+static int tosh_date;
+static int tosh_sci;
+static int tosh_fan;
static int tosh_ioctl(struct inode *, struct file *, unsigned int,
unsigned long);
@@ -359,7 +363,7 @@ static int tosh_get_machine_id(void)
unsigned long address;
id = (0x100*(int) isa_readb(0xffffe))+((int) isa_readb(0xffffa));
-
+
/* do we have a SCTTable machine identication number on our hands */
if (id==0xfc2f) {
@@ -424,7 +428,7 @@ static int tosh_probe(void)
}
/* call the Toshiba SCI support check routine */
-
+
regs.eax = 0xf0f0;
regs.ebx = 0x0000;
regs.ecx = 0x0000;
@@ -440,7 +444,7 @@ static int tosh_probe(void)
/* if we get this far then we are running on a Toshiba (probably)! */
tosh_sci = regs.edx & 0xffff;
-
+
/* next get the machine ID of the current laptop */
tosh_id = tosh_get_machine_id();
@@ -475,16 +479,15 @@ static int tosh_probe(void)
return 0;
}
-int __init tosh_init(void)
+static int __init toshiba_init(void)
{
int retval;
/* are we running on a Toshiba laptop */
- if (tosh_probe()!=0)
- return -EIO;
+ if (tosh_probe())
+ return -ENODEV;
- printk(KERN_INFO "Toshiba System Managment Mode driver v"
- TOSH_VERSION"\n");
+ printk(KERN_INFO "Toshiba System Managment Mode driver v" TOSH_VERSION "\n");
/* set the port to use for Fn status if not specified as a parameter */
if (tosh_fn==0x00)
@@ -492,12 +495,12 @@ int __init tosh_init(void)
/* register the device file */
retval = misc_register(&tosh_device);
- if(retval < 0)
+ if (retval < 0)
return retval;
#ifdef CONFIG_PROC_FS
/* register the proc entry */
- if(create_proc_info_entry("toshiba", 0, NULL, tosh_get_info) == NULL){
+ if (create_proc_info_entry("toshiba", 0, NULL, tosh_get_info) == NULL) {
misc_deregister(&tosh_device);
return -ENOMEM;
}
@@ -506,27 +509,12 @@ int __init tosh_init(void)
return 0;
}
-#ifdef MODULE
-int init_module(void)
-{
- return tosh_init();
-}
-
-void cleanup_module(void)
+static void __exit toshiba_exit(void)
{
- /* remove the proc entry */
-
remove_proc_entry("toshiba", NULL);
-
- /* unregister the device file */
-
misc_deregister(&tosh_device);
}
-#endif
-MODULE_LICENSE("GPL");
-MODULE_PARM_DESC(tosh_fn, "User specified Fn key detection port");
-MODULE_AUTHOR("Jonathan Buzzard <jonathan@buzzard.org.uk>");
-MODULE_DESCRIPTION("Toshiba laptop SMM driver");
-MODULE_SUPPORTED_DEVICE("toshiba");
+module_init(toshiba_init);
+module_exit(toshiba_exit);
Index: dtor/drivers/char/misc.c
===================================================================
--- dtor.orig/drivers/char/misc.c
+++ dtor/drivers/char/misc.c
@@ -66,7 +66,6 @@ static unsigned char misc_minors[DYNAMIC
extern int rtc_DP8570A_init(void);
extern int rtc_MK48T08_init(void);
extern int pmu_device_init(void);
-extern int tosh_init(void);
extern int i8k_init(void);
#ifdef CONFIG_PROC_FS
@@ -314,9 +313,6 @@ static int __init misc_init(void)
#ifdef CONFIG_PMAC_PBOOK
pmu_device_init();
#endif
-#ifdef CONFIG_TOSHIBA
- tosh_init();
-#endif
#ifdef CONFIG_I8K
i8k_init();
#endif
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 2/6] I8K: pass through lindent
2005-04-27 6:49 [PATCH 0/6] I8K and Toshiba legacy driver cleanup Dmitry Torokhov
2005-04-27 6:50 ` [PATCH 1/6] Toshiba " Dmitry Torokhov
@ 2005-04-27 6:52 ` Dmitry Torokhov
2005-04-27 6:52 ` [PATCH 3/6] I8K: use standard DMI interface Dmitry Torokhov
` (3 subsequent siblings)
5 siblings, 0 replies; 11+ messages in thread
From: Dmitry Torokhov @ 2005-04-27 6:52 UTC (permalink / raw)
To: Andrew Morton; +Cc: LKML
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="utf-8", Size: 27392 bytes --]
I8K: pass through Lindent to change 4 spaces identation to TABs
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
i8k.c | 954 +++++++++++++++++++++++++++++++++---------------------------------
1 files changed, 477 insertions(+), 477 deletions(-)
Index: dtor/drivers/char/i8k.c
===================================================================
--- dtor.orig/drivers/char/i8k.c
+++ dtor/drivers/char/i8k.c
@@ -55,14 +55,14 @@
#define DELL_SIGNATURE "Dell Computer"
static char *supported_models[] = {
- "Inspiron",
- "Latitude",
- NULL
+ "Inspiron",
+ "Latitude",
+ NULL
};
static char system_vendor[48] = "?";
-static char product_name [48] = "?";
-static char bios_version [4] = "?";
+static char product_name[48] = "?";
+static char bios_version[4] = "?";
static char serial_number[16] = "?";
MODULE_AUTHOR("Massimo Dal Zotto (dz@debian.org)");
@@ -86,64 +86,63 @@ static int i8k_ioctl(struct inode *, str
unsigned long);
static struct file_operations i8k_fops = {
- .read = i8k_read,
- .ioctl = i8k_ioctl,
+ .read = i8k_read,
+ .ioctl = i8k_ioctl,
};
typedef struct {
- unsigned int eax;
- unsigned int ebx __attribute__ ((packed));
- unsigned int ecx __attribute__ ((packed));
- unsigned int edx __attribute__ ((packed));
- unsigned int esi __attribute__ ((packed));
- unsigned int edi __attribute__ ((packed));
+ unsigned int eax;
+ unsigned int ebx __attribute__ ((packed));
+ unsigned int ecx __attribute__ ((packed));
+ unsigned int edx __attribute__ ((packed));
+ unsigned int esi __attribute__ ((packed));
+ unsigned int edi __attribute__ ((packed));
} SMMRegisters;
typedef struct {
- u8 type;
- u8 length;
- u16 handle;
+ u8 type;
+ u8 length;
+ u16 handle;
} DMIHeader;
/*
* Call the System Management Mode BIOS. Code provided by Jonathan Buzzard.
*/
-static int i8k_smm(SMMRegisters *regs)
+static int i8k_smm(SMMRegisters * regs)
{
- int rc;
- int eax = regs->eax;
+ int rc;
+ int eax = regs->eax;
- asm("pushl %%eax\n\t" \
- "movl 0(%%eax),%%edx\n\t" \
- "push %%edx\n\t" \
- "movl 4(%%eax),%%ebx\n\t" \
- "movl 8(%%eax),%%ecx\n\t" \
- "movl 12(%%eax),%%edx\n\t" \
- "movl 16(%%eax),%%esi\n\t" \
- "movl 20(%%eax),%%edi\n\t" \
- "popl %%eax\n\t" \
- "out %%al,$0xb2\n\t" \
- "out %%al,$0x84\n\t" \
- "xchgl %%eax,(%%esp)\n\t"
- "movl %%ebx,4(%%eax)\n\t" \
- "movl %%ecx,8(%%eax)\n\t" \
- "movl %%edx,12(%%eax)\n\t" \
- "movl %%esi,16(%%eax)\n\t" \
- "movl %%edi,20(%%eax)\n\t" \
- "popl %%edx\n\t" \
- "movl %%edx,0(%%eax)\n\t" \
- "lahf\n\t" \
- "shrl $8,%%eax\n\t" \
- "andl $1,%%eax\n" \
- : "=a" (rc)
- : "a" (regs)
- : "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory");
-
- if ((rc != 0) || ((regs->eax & 0xffff) == 0xffff) || (regs->eax == eax)) {
- return -EINVAL;
- }
+ asm("pushl %%eax\n\t"
+ "movl 0(%%eax),%%edx\n\t"
+ "push %%edx\n\t"
+ "movl 4(%%eax),%%ebx\n\t"
+ "movl 8(%%eax),%%ecx\n\t"
+ "movl 12(%%eax),%%edx\n\t"
+ "movl 16(%%eax),%%esi\n\t"
+ "movl 20(%%eax),%%edi\n\t"
+ "popl %%eax\n\t"
+ "out %%al,$0xb2\n\t"
+ "out %%al,$0x84\n\t"
+ "xchgl %%eax,(%%esp)\n\t"
+ "movl %%ebx,4(%%eax)\n\t"
+ "movl %%ecx,8(%%eax)\n\t"
+ "movl %%edx,12(%%eax)\n\t"
+ "movl %%esi,16(%%eax)\n\t"
+ "movl %%edi,20(%%eax)\n\t"
+ "popl %%edx\n\t"
+ "movl %%edx,0(%%eax)\n\t"
+ "lahf\n\t"
+ "shrl $8,%%eax\n\t"
+ "andl $1,%%eax\n":"=a"(rc)
+ : "a"(regs)
+ : "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory");
- return 0;
+ if ((rc != 0) || ((regs->eax & 0xffff) == 0xffff) || (regs->eax == eax)) {
+ return -EINVAL;
+ }
+
+ return 0;
}
/*
@@ -152,15 +151,15 @@ static int i8k_smm(SMMRegisters *regs)
*/
static int i8k_get_bios_version(void)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
- int rc;
+ SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+ int rc;
- regs.eax = I8K_SMM_BIOS_VERSION;
- if ((rc=i8k_smm(®s)) < 0) {
- return rc;
- }
+ regs.eax = I8K_SMM_BIOS_VERSION;
+ if ((rc = i8k_smm(®s)) < 0) {
+ return rc;
+ }
- return regs.eax;
+ return regs.eax;
}
/*
@@ -168,8 +167,8 @@ static int i8k_get_bios_version(void)
*/
static int i8k_get_serial_number(unsigned char *buff)
{
- strlcpy(buff, serial_number, sizeof(serial_number));
- return 0;
+ strlcpy(buff, serial_number, sizeof(serial_number));
+ return 0;
}
/*
@@ -177,24 +176,24 @@ static int i8k_get_serial_number(unsigne
*/
static int i8k_get_fn_status(void)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
- int rc;
+ SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+ int rc;
- regs.eax = I8K_SMM_FN_STATUS;
- if ((rc=i8k_smm(®s)) < 0) {
- return rc;
- }
-
- switch ((regs.eax >> I8K_FN_SHIFT) & I8K_FN_MASK) {
- case I8K_FN_UP:
- return I8K_VOL_UP;
- case I8K_FN_DOWN:
- return I8K_VOL_DOWN;
- case I8K_FN_MUTE:
- return I8K_VOL_MUTE;
- default:
- return 0;
- }
+ regs.eax = I8K_SMM_FN_STATUS;
+ if ((rc = i8k_smm(®s)) < 0) {
+ return rc;
+ }
+
+ switch ((regs.eax >> I8K_FN_SHIFT) & I8K_FN_MASK) {
+ case I8K_FN_UP:
+ return I8K_VOL_UP;
+ case I8K_FN_DOWN:
+ return I8K_VOL_DOWN;
+ case I8K_FN_MUTE:
+ return I8K_VOL_MUTE;
+ default:
+ return 0;
+ }
}
/*
@@ -202,20 +201,20 @@ static int i8k_get_fn_status(void)
*/
static int i8k_get_power_status(void)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
- int rc;
+ SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+ int rc;
+
+ regs.eax = I8K_SMM_POWER_STATUS;
+ if ((rc = i8k_smm(®s)) < 0) {
+ return rc;
+ }
- regs.eax = I8K_SMM_POWER_STATUS;
- if ((rc=i8k_smm(®s)) < 0) {
- return rc;
- }
-
- switch (regs.eax & 0xff) {
- case I8K_POWER_AC:
- return I8K_AC;
- default:
- return I8K_BATTERY;
- }
+ switch (regs.eax & 0xff) {
+ case I8K_POWER_AC:
+ return I8K_AC;
+ default:
+ return I8K_BATTERY;
+ }
}
/*
@@ -223,16 +222,16 @@ static int i8k_get_power_status(void)
*/
static int i8k_get_fan_status(int fan)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
- int rc;
+ SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+ int rc;
- regs.eax = I8K_SMM_GET_FAN;
- regs.ebx = fan & 0xff;
- if ((rc=i8k_smm(®s)) < 0) {
- return rc;
- }
+ regs.eax = I8K_SMM_GET_FAN;
+ regs.ebx = fan & 0xff;
+ if ((rc = i8k_smm(®s)) < 0) {
+ return rc;
+ }
- return (regs.eax & 0xff);
+ return (regs.eax & 0xff);
}
/*
@@ -240,16 +239,16 @@ static int i8k_get_fan_status(int fan)
*/
static int i8k_get_fan_speed(int fan)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
- int rc;
+ SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+ int rc;
- regs.eax = I8K_SMM_GET_SPEED;
- regs.ebx = fan & 0xff;
- if ((rc=i8k_smm(®s)) < 0) {
- return rc;
- }
+ regs.eax = I8K_SMM_GET_SPEED;
+ regs.ebx = fan & 0xff;
+ if ((rc = i8k_smm(®s)) < 0) {
+ return rc;
+ }
- return (regs.eax & 0xffff) * I8K_FAN_MULT;
+ return (regs.eax & 0xffff) * I8K_FAN_MULT;
}
/*
@@ -257,18 +256,18 @@ static int i8k_get_fan_speed(int fan)
*/
static int i8k_set_fan(int fan, int speed)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
- int rc;
+ SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+ int rc;
- speed = (speed < 0) ? 0 : ((speed > I8K_FAN_MAX) ? I8K_FAN_MAX : speed);
+ speed = (speed < 0) ? 0 : ((speed > I8K_FAN_MAX) ? I8K_FAN_MAX : speed);
- regs.eax = I8K_SMM_SET_FAN;
- regs.ebx = (fan & 0xff) | (speed << 8);
- if ((rc=i8k_smm(®s)) < 0) {
- return rc;
- }
+ regs.eax = I8K_SMM_SET_FAN;
+ regs.ebx = (fan & 0xff) | (speed << 8);
+ if ((rc = i8k_smm(®s)) < 0) {
+ return rc;
+ }
- return (i8k_get_fan_status(fan));
+ return (i8k_get_fan_status(fan));
}
/*
@@ -276,143 +275,143 @@ static int i8k_set_fan(int fan, int spee
*/
static int i8k_get_cpu_temp(void)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
- int rc;
- int temp;
+ SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+ int rc;
+ int temp;
#ifdef I8K_TEMPERATURE_BUG
- static int prev = 0;
+ static int prev = 0;
#endif
- regs.eax = I8K_SMM_GET_TEMP;
- if ((rc=i8k_smm(®s)) < 0) {
- return rc;
- }
- temp = regs.eax & 0xff;
+ regs.eax = I8K_SMM_GET_TEMP;
+ if ((rc = i8k_smm(®s)) < 0) {
+ return rc;
+ }
+ temp = regs.eax & 0xff;
#ifdef I8K_TEMPERATURE_BUG
- /*
- * Sometimes the temperature sensor returns 0x99, which is out of range.
- * In this case we return (once) the previous cached value. For example:
- # 1003655137 00000058 00005a4b
- # 1003655138 00000099 00003a80 <--- 0x99 = 153 degrees
- # 1003655139 00000054 00005c52
- */
- if (temp > I8K_MAX_TEMP) {
- temp = prev;
- prev = I8K_MAX_TEMP;
- } else {
- prev = temp;
- }
+ /*
+ * Sometimes the temperature sensor returns 0x99, which is out of range.
+ * In this case we return (once) the previous cached value. For example:
+ # 1003655137 00000058 00005a4b
+ # 1003655138 00000099 00003a80 <--- 0x99 = 153 degrees
+ # 1003655139 00000054 00005c52
+ */
+ if (temp > I8K_MAX_TEMP) {
+ temp = prev;
+ prev = I8K_MAX_TEMP;
+ } else {
+ prev = temp;
+ }
#endif
- return temp;
+ return temp;
}
static int i8k_get_dell_signature(void)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
- int rc;
+ SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+ int rc;
- regs.eax = I8K_SMM_GET_DELL_SIG;
- if ((rc=i8k_smm(®s)) < 0) {
- return rc;
- }
+ regs.eax = I8K_SMM_GET_DELL_SIG;
+ if ((rc = i8k_smm(®s)) < 0) {
+ return rc;
+ }
- if ((regs.eax == 1145651527) && (regs.edx == 1145392204)) {
- return 0;
- } else {
- return -1;
- }
+ if ((regs.eax == 1145651527) && (regs.edx == 1145392204)) {
+ return 0;
+ } else {
+ return -1;
+ }
}
static int i8k_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
unsigned long arg)
{
- int val;
- int speed;
- unsigned char buff[16];
- int __user *argp = (int __user *)arg;
-
- if (!argp)
- return -EINVAL;
-
- switch (cmd) {
- case I8K_BIOS_VERSION:
- val = i8k_get_bios_version();
- break;
-
- case I8K_MACHINE_ID:
- memset(buff, 0, 16);
- val = i8k_get_serial_number(buff);
- break;
-
- case I8K_FN_STATUS:
- val = i8k_get_fn_status();
- break;
-
- case I8K_POWER_STATUS:
- val = i8k_get_power_status();
- break;
-
- case I8K_GET_TEMP:
- val = i8k_get_cpu_temp();
- break;
-
- case I8K_GET_SPEED:
- if (copy_from_user(&val, argp, sizeof(int))) {
- return -EFAULT;
- }
- val = i8k_get_fan_speed(val);
- break;
-
- case I8K_GET_FAN:
- if (copy_from_user(&val, argp, sizeof(int))) {
- return -EFAULT;
- }
- val = i8k_get_fan_status(val);
- break;
-
- case I8K_SET_FAN:
- if (restricted && !capable(CAP_SYS_ADMIN)) {
- return -EPERM;
- }
- if (copy_from_user(&val, argp, sizeof(int))) {
- return -EFAULT;
- }
- if (copy_from_user(&speed, argp+1, sizeof(int))) {
- return -EFAULT;
- }
- val = i8k_set_fan(val, speed);
- break;
-
- default:
- return -EINVAL;
- }
-
- if (val < 0) {
- return val;
- }
-
- switch (cmd) {
- case I8K_BIOS_VERSION:
- if (copy_to_user(argp, &val, 4)) {
- return -EFAULT;
- }
- break;
- case I8K_MACHINE_ID:
- if (copy_to_user(argp, buff, 16)) {
- return -EFAULT;
- }
- break;
- default:
- if (copy_to_user(argp, &val, sizeof(int))) {
- return -EFAULT;
+ int val;
+ int speed;
+ unsigned char buff[16];
+ int __user *argp = (int __user *)arg;
+
+ if (!argp)
+ return -EINVAL;
+
+ switch (cmd) {
+ case I8K_BIOS_VERSION:
+ val = i8k_get_bios_version();
+ break;
+
+ case I8K_MACHINE_ID:
+ memset(buff, 0, 16);
+ val = i8k_get_serial_number(buff);
+ break;
+
+ case I8K_FN_STATUS:
+ val = i8k_get_fn_status();
+ break;
+
+ case I8K_POWER_STATUS:
+ val = i8k_get_power_status();
+ break;
+
+ case I8K_GET_TEMP:
+ val = i8k_get_cpu_temp();
+ break;
+
+ case I8K_GET_SPEED:
+ if (copy_from_user(&val, argp, sizeof(int))) {
+ return -EFAULT;
+ }
+ val = i8k_get_fan_speed(val);
+ break;
+
+ case I8K_GET_FAN:
+ if (copy_from_user(&val, argp, sizeof(int))) {
+ return -EFAULT;
+ }
+ val = i8k_get_fan_status(val);
+ break;
+
+ case I8K_SET_FAN:
+ if (restricted && !capable(CAP_SYS_ADMIN)) {
+ return -EPERM;
+ }
+ if (copy_from_user(&val, argp, sizeof(int))) {
+ return -EFAULT;
+ }
+ if (copy_from_user(&speed, argp + 1, sizeof(int))) {
+ return -EFAULT;
+ }
+ val = i8k_set_fan(val, speed);
+ break;
+
+ default:
+ return -EINVAL;
}
- break;
- }
- return 0;
+ if (val < 0) {
+ return val;
+ }
+
+ switch (cmd) {
+ case I8K_BIOS_VERSION:
+ if (copy_to_user(argp, &val, 4)) {
+ return -EFAULT;
+ }
+ break;
+ case I8K_MACHINE_ID:
+ if (copy_to_user(argp, buff, 16)) {
+ return -EFAULT;
+ }
+ break;
+ default:
+ if (copy_to_user(argp, &val, sizeof(int))) {
+ return -EFAULT;
+ }
+ break;
+ }
+
+ return 0;
}
/*
@@ -420,90 +419,87 @@ static int i8k_ioctl(struct inode *ip, s
*/
static int i8k_get_info(char *buffer, char **start, off_t fpos, int length)
{
- int n, fn_key, cpu_temp, ac_power;
- int left_fan, right_fan, left_speed, right_speed;
+ int n, fn_key, cpu_temp, ac_power;
+ int left_fan, right_fan, left_speed, right_speed;
+
+ cpu_temp = i8k_get_cpu_temp(); /* 11100 µs */
+ left_fan = i8k_get_fan_status(I8K_FAN_LEFT); /* 580 µs */
+ right_fan = i8k_get_fan_status(I8K_FAN_RIGHT); /* 580 µs */
+ left_speed = i8k_get_fan_speed(I8K_FAN_LEFT); /* 580 µs */
+ right_speed = i8k_get_fan_speed(I8K_FAN_RIGHT); /* 580 µs */
+ fn_key = i8k_get_fn_status(); /* 750 µs */
+ if (power_status) {
+ ac_power = i8k_get_power_status(); /* 14700 µs */
+ } else {
+ ac_power = -1;
+ }
- cpu_temp = i8k_get_cpu_temp(); /* 11100 µs */
- left_fan = i8k_get_fan_status(I8K_FAN_LEFT); /* 580 µs */
- right_fan = i8k_get_fan_status(I8K_FAN_RIGHT); /* 580 µs */
- left_speed = i8k_get_fan_speed(I8K_FAN_LEFT); /* 580 µs */
- right_speed = i8k_get_fan_speed(I8K_FAN_RIGHT); /* 580 µs */
- fn_key = i8k_get_fn_status(); /* 750 µs */
- if (power_status) {
- ac_power = i8k_get_power_status(); /* 14700 µs */
- } else {
- ac_power = -1;
- }
-
- /*
- * Info:
- *
- * 1) Format version (this will change if format changes)
- * 2) BIOS version
- * 3) BIOS machine ID
- * 4) Cpu temperature
- * 5) Left fan status
- * 6) Right fan status
- * 7) Left fan speed
- * 8) Right fan speed
- * 9) AC power
- * 10) Fn Key status
- */
- n = sprintf(buffer, "%s %s %s %d %d %d %d %d %d %d\n",
- I8K_PROC_FMT,
- bios_version,
- serial_number,
- cpu_temp,
- left_fan,
- right_fan,
- left_speed,
- right_speed,
- ac_power,
- fn_key);
-
- return n;
+ /*
+ * Info:
+ *
+ * 1) Format version (this will change if format changes)
+ * 2) BIOS version
+ * 3) BIOS machine ID
+ * 4) Cpu temperature
+ * 5) Left fan status
+ * 6) Right fan status
+ * 7) Left fan speed
+ * 8) Right fan speed
+ * 9) AC power
+ * 10) Fn Key status
+ */
+ n = sprintf(buffer, "%s %s %s %d %d %d %d %d %d %d\n",
+ I8K_PROC_FMT,
+ bios_version,
+ serial_number,
+ cpu_temp,
+ left_fan,
+ right_fan, left_speed, right_speed, ac_power, fn_key);
+
+ return n;
}
-static ssize_t i8k_read(struct file *f, char __user *buffer, size_t len, loff_t *fpos)
+static ssize_t i8k_read(struct file *f, char __user * buffer, size_t len,
+ loff_t * fpos)
{
- int n;
- char info[128];
+ int n;
+ char info[128];
- n = i8k_get_info(info, NULL, 0, 128);
- if (n <= 0) {
- return n;
- }
+ n = i8k_get_info(info, NULL, 0, 128);
+ if (n <= 0) {
+ return n;
+ }
- if (*fpos >= n) {
- return 0;
- }
+ if (*fpos >= n) {
+ return 0;
+ }
- if ((*fpos + len) >= n) {
- len = n - *fpos;
- }
+ if ((*fpos + len) >= n) {
+ len = n - *fpos;
+ }
- if (copy_to_user(buffer, info, len) != 0) {
- return -EFAULT;
- }
+ if (copy_to_user(buffer, info, len) != 0) {
+ return -EFAULT;
+ }
- *fpos += len;
- return len;
+ *fpos += len;
+ return len;
}
-static char* __init string_trim(char *s, int size)
+static char *__init string_trim(char *s, int size)
{
- int len;
- char *p;
+ int len;
+ char *p;
- if ((len = strlen(s)) > size) {
- len = size;
- }
+ if ((len = strlen(s)) > size) {
+ len = size;
+ }
- for (p=s+len-1; len && (*p==' '); len--,p--) {
- *p = '\0';
- }
+ for (p = s + len - 1; len && (*p == ' '); len--, p--) {
+ *p = '\0';
+ }
- return s;
+ return s;
}
/* DMI code, stolen from arch/i386/kernel/dmi_scan.c */
@@ -515,111 +511,112 @@ static char* __init string_trim(char *s,
* | |
* +-----------------------+
*/
-static char* __init dmi_string(DMIHeader *dmi, u8 s)
+static char *__init dmi_string(DMIHeader * dmi, u8 s)
{
- u8 *p;
+ u8 *p;
- if (!s) {
- return "";
- }
- s--;
-
- p = (u8 *)dmi + dmi->length;
- while (s > 0) {
- p += strlen(p);
- p++;
+ if (!s) {
+ return "";
+ }
s--;
- }
- return p;
+ p = (u8 *) dmi + dmi->length;
+ while (s > 0) {
+ p += strlen(p);
+ p++;
+ s--;
+ }
+
+ return p;
}
-static void __init dmi_decode(DMIHeader *dmi)
+static void __init dmi_decode(DMIHeader * dmi)
{
- u8 *data = (u8 *) dmi;
- char *p;
+ u8 *data = (u8 *) dmi;
+ char *p;
#ifdef I8K_DEBUG
- int i;
- printk("%08x ", (int)data);
- for (i=0; i<data[1] && i<64; i++) {
- printk("%02x ", data[i]);
- }
- printk("\n");
+ int i;
+ printk("%08x ", (int)data);
+ for (i = 0; i < data[1] && i < 64; i++) {
+ printk("%02x ", data[i]);
+ }
+ printk("\n");
#endif
- switch (dmi->type) {
- case 0: /* BIOS Information */
- p = dmi_string(dmi,data[5]);
- if (*p) {
- strlcpy(bios_version, p, sizeof(bios_version));
- string_trim(bios_version, sizeof(bios_version));
- }
- break;
- case 1: /* System Information */
- p = dmi_string(dmi,data[4]);
- if (*p) {
- strlcpy(system_vendor, p, sizeof(system_vendor));
- string_trim(system_vendor, sizeof(system_vendor));
- }
- p = dmi_string(dmi,data[5]);
- if (*p) {
- strlcpy(product_name, p, sizeof(product_name));
- string_trim(product_name, sizeof(product_name));
- }
- p = dmi_string(dmi,data[7]);
- if (*p) {
- strlcpy(serial_number, p, sizeof(serial_number));
- string_trim(serial_number, sizeof(serial_number));
- }
- break;
- }
-}
-
-static int __init dmi_table(u32 base, int len, int num, void (*fn)(DMIHeader*))
-{
- u8 *buf;
- u8 *data;
- DMIHeader *dmi;
- int i = 1;
+ switch (dmi->type) {
+ case 0: /* BIOS Information */
+ p = dmi_string(dmi, data[5]);
+ if (*p) {
+ strlcpy(bios_version, p, sizeof(bios_version));
+ string_trim(bios_version, sizeof(bios_version));
+ }
+ break;
+ case 1: /* System Information */
+ p = dmi_string(dmi, data[4]);
+ if (*p) {
+ strlcpy(system_vendor, p, sizeof(system_vendor));
+ string_trim(system_vendor, sizeof(system_vendor));
+ }
+ p = dmi_string(dmi, data[5]);
+ if (*p) {
+ strlcpy(product_name, p, sizeof(product_name));
+ string_trim(product_name, sizeof(product_name));
+ }
+ p = dmi_string(dmi, data[7]);
+ if (*p) {
+ strlcpy(serial_number, p, sizeof(serial_number));
+ string_trim(serial_number, sizeof(serial_number));
+ }
+ break;
+ }
+}
- buf = ioremap(base, len);
- if (buf == NULL) {
- return -1;
- }
- data = buf;
+static int __init dmi_table(u32 base, int len, int num,
+ void (*fn) (DMIHeader *))
+{
+ u8 *buf;
+ u8 *data;
+ DMIHeader *dmi;
+ int i = 1;
- /*
- * Stop when we see al the items the table claimed to have
- * or we run off the end of the table (also happens)
- */
- while ((i<num) && ((data-buf) < len)) {
- dmi = (DMIHeader *)data;
- /*
- * Avoid misparsing crud if the length of the last
- * record is crap
- */
- if ((data-buf+dmi->length) >= len) {
- break;
+ buf = ioremap(base, len);
+ if (buf == NULL) {
+ return -1;
}
- fn(dmi);
- data += dmi->length;
+ data = buf;
+
/*
- * Don't go off the end of the data if there is
- * stuff looking like string fill past the end
+ * Stop when we see al the items the table claimed to have
+ * or we run off the end of the table (also happens)
*/
- while (((data-buf) < len) && (*data || data[1])) {
- data++;
+ while ((i < num) && ((data - buf) < len)) {
+ dmi = (DMIHeader *) data;
+ /*
+ * Avoid misparsing crud if the length of the last
+ * record is crap
+ */
+ if ((data - buf + dmi->length) >= len) {
+ break;
+ }
+ fn(dmi);
+ data += dmi->length;
+ /*
+ * Don't go off the end of the data if there is
+ * stuff looking like string fill past the end
+ */
+ while (((data - buf) < len) && (*data || data[1])) {
+ data++;
+ }
+ data += 2;
+ i++;
}
- data += 2;
- i++;
- }
- iounmap(buf);
+ iounmap(buf);
- return 0;
+ return 0;
}
-static int __init dmi_iterate(void (*decode)(DMIHeader *))
+static int __init dmi_iterate(void (*decode) (DMIHeader *))
{
unsigned char buf[20];
void __iomem *p = ioremap(0xe0000, 0x20000), *q;
@@ -629,20 +626,20 @@ static int __init dmi_iterate(void (*dec
for (q = p; q < p + 0x20000; q += 16) {
memcpy_fromio(buf, q, 20);
- if (memcmp(buf, "_DMI_", 5)==0) {
- u16 num = buf[13]<<8 | buf[12];
- u16 len = buf [7]<<8 | buf [6];
- u32 base = buf[11]<<24 | buf[10]<<16 | buf[9]<<8 | buf[8];
+ if (memcmp(buf, "_DMI_", 5) == 0) {
+ u16 num = buf[13] << 8 | buf[12];
+ u16 len = buf[7] << 8 | buf[6];
+ u32 base = buf[11] << 24 | buf[10] << 16 | buf[9] << 8 | buf[8];
#ifdef I8K_DEBUG
printk(KERN_INFO "DMI %d.%d present.\n",
- buf[14]>>4, buf[14]&0x0F);
+ buf[14] >> 4, buf[14] & 0x0F);
printk(KERN_INFO "%d structures occupying %d bytes.\n",
- buf[13]<<8 | buf[12],
- buf [7]<<8 | buf[6]);
+ buf[13] << 8 | buf[12], buf[7] << 8 | buf[6]);
printk(KERN_INFO "DMI table at 0x%08X.\n",
- buf[11]<<24 | buf[10]<<16 | buf[9]<<8 | buf[8]);
+ buf[11] << 24 | buf[10] << 16 | buf[9] << 8 |
+ buf[8]);
#endif
- if (dmi_table(base, len, num, decode)==0) {
+ if (dmi_table(base, len, num, decode) == 0) {
iounmap(p);
return 0;
}
@@ -651,6 +648,7 @@ static int __init dmi_iterate(void (*dec
iounmap(p);
return -1;
}
+
/* end of DMI code */
/*
@@ -658,29 +656,30 @@ static int __init dmi_iterate(void (*dec
*/
static int __init i8k_dmi_probe(void)
{
- char **p;
-
- if (dmi_iterate(dmi_decode) != 0) {
- printk(KERN_INFO "i8k: unable to get DMI information\n");
- return -ENODEV;
- }
+ char **p;
- if (strncmp(system_vendor,DELL_SIGNATURE,strlen(DELL_SIGNATURE)) != 0) {
- printk(KERN_INFO "i8k: not running on a Dell system\n");
- return -ENODEV;
- }
+ if (dmi_iterate(dmi_decode) != 0) {
+ printk(KERN_INFO "i8k: unable to get DMI information\n");
+ return -ENODEV;
+ }
- for (p=supported_models; ; p++) {
- if (!*p) {
- printk(KERN_INFO "i8k: unsupported model: %s\n", product_name);
- return -ENODEV;
+ if (strncmp(system_vendor, DELL_SIGNATURE, strlen(DELL_SIGNATURE)) != 0) {
+ printk(KERN_INFO "i8k: not running on a Dell system\n");
+ return -ENODEV;
}
- if (strncmp(product_name,*p,strlen(*p)) == 0) {
- break;
+
+ for (p = supported_models;; p++) {
+ if (!*p) {
+ printk(KERN_INFO "i8k: unsupported model: %s\n",
+ product_name);
+ return -ENODEV;
+ }
+ if (strncmp(product_name, *p, strlen(*p)) == 0) {
+ break;
+ }
}
- }
- return 0;
+ return 0;
}
/*
@@ -688,59 +687,60 @@ static int __init i8k_dmi_probe(void)
*/
static int __init i8k_probe(void)
{
- char buff[4];
- int version;
- int smm_found = 0;
-
- /*
- * Get DMI information
- */
- if (i8k_dmi_probe() != 0) {
- printk(KERN_INFO "i8k: vendor=%s, model=%s, version=%s\n",
- system_vendor, product_name, bios_version);
- }
-
- /*
- * Get SMM Dell signature
- */
- if (i8k_get_dell_signature() != 0) {
- printk(KERN_INFO "i8k: unable to get SMM Dell signature\n");
- } else {
- smm_found = 1;
- }
-
- /*
- * Get SMM BIOS version.
- */
- version = i8k_get_bios_version();
- if (version <= 0) {
- printk(KERN_INFO "i8k: unable to get SMM BIOS version\n");
- } else {
- smm_found = 1;
- buff[0] = (version >> 16) & 0xff;
- buff[1] = (version >> 8) & 0xff;
- buff[2] = (version) & 0xff;
- buff[3] = '\0';
+ char buff[4];
+ int version;
+ int smm_found = 0;
+
/*
- * If DMI BIOS version is unknown use SMM BIOS version.
+ * Get DMI information
*/
- if (bios_version[0] == '?') {
- strcpy(bios_version, buff);
+ if (i8k_dmi_probe() != 0) {
+ printk(KERN_INFO "i8k: vendor=%s, model=%s, version=%s\n",
+ system_vendor, product_name, bios_version);
}
+
/*
- * Check if the two versions match.
+ * Get SMM Dell signature
*/
- if (strncmp(buff,bios_version,sizeof(bios_version)) != 0) {
- printk(KERN_INFO "i8k: BIOS version mismatch: %s != %s\n",
- buff, bios_version);
+ if (i8k_get_dell_signature() != 0) {
+ printk(KERN_INFO "i8k: unable to get SMM Dell signature\n");
+ } else {
+ smm_found = 1;
}
- }
- if (!smm_found && !force) {
- return -ENODEV;
- }
+ /*
+ * Get SMM BIOS version.
+ */
+ version = i8k_get_bios_version();
+ if (version <= 0) {
+ printk(KERN_INFO "i8k: unable to get SMM BIOS version\n");
+ } else {
+ smm_found = 1;
+ buff[0] = (version >> 16) & 0xff;
+ buff[1] = (version >> 8) & 0xff;
+ buff[2] = (version) & 0xff;
+ buff[3] = '\0';
+ /*
+ * If DMI BIOS version is unknown use SMM BIOS version.
+ */
+ if (bios_version[0] == '?') {
+ strcpy(bios_version, buff);
+ }
+ /*
+ * Check if the two versions match.
+ */
+ if (strncmp(buff, bios_version, sizeof(bios_version)) != 0) {
+ printk(KERN_INFO
+ "i8k: BIOS version mismatch: %s != %s\n", buff,
+ bios_version);
+ }
+ }
- return 0;
+ if (!smm_found && !force) {
+ return -ENODEV;
+ }
+
+ return 0;
}
#ifdef MODULE
@@ -748,40 +748,40 @@ static
#endif
int __init i8k_init(void)
{
- struct proc_dir_entry *proc_i8k;
+ struct proc_dir_entry *proc_i8k;
- /* Are we running on an supported laptop? */
- if (i8k_probe() != 0) {
- return -ENODEV;
- }
-
- /* Register the proc entry */
- proc_i8k = create_proc_info_entry("i8k", 0, NULL, i8k_get_info);
- if (!proc_i8k) {
- return -ENOENT;
- }
- proc_i8k->proc_fops = &i8k_fops;
- proc_i8k->owner = THIS_MODULE;
-
- printk(KERN_INFO
- "Dell laptop SMM driver v%s Massimo Dal Zotto (dz@debian.org)\n",
- I8K_VERSION);
+ /* Are we running on an supported laptop? */
+ if (i8k_probe() != 0) {
+ return -ENODEV;
+ }
+
+ /* Register the proc entry */
+ proc_i8k = create_proc_info_entry("i8k", 0, NULL, i8k_get_info);
+ if (!proc_i8k) {
+ return -ENOENT;
+ }
+ proc_i8k->proc_fops = &i8k_fops;
+ proc_i8k->owner = THIS_MODULE;
- return 0;
+ printk(KERN_INFO
+ "Dell laptop SMM driver v%s Massimo Dal Zotto (dz@debian.org)\n",
+ I8K_VERSION);
+
+ return 0;
}
#ifdef MODULE
int init_module(void)
{
- return i8k_init();
+ return i8k_init();
}
void cleanup_module(void)
{
- /* Remove the proc entry */
- remove_proc_entry("i8k", NULL);
+ /* Remove the proc entry */
+ remove_proc_entry("i8k", NULL);
- printk(KERN_INFO "i8k: module unloaded\n");
+ printk(KERN_INFO "i8k: module unloaded\n");
}
#endif
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 3/6] I8K: use standard DMI interface
2005-04-27 6:49 [PATCH 0/6] I8K and Toshiba legacy driver cleanup Dmitry Torokhov
2005-04-27 6:50 ` [PATCH 1/6] Toshiba " Dmitry Torokhov
2005-04-27 6:52 ` [PATCH 2/6] I8K: pass through lindent Dmitry Torokhov
@ 2005-04-27 6:52 ` Dmitry Torokhov
2005-04-28 5:02 ` Dmitry Torokhov
2005-04-27 6:53 ` [PATCH 4/6] I8K: convert to seqfile Dmitry Torokhov
` (2 subsequent siblings)
5 siblings, 1 reply; 11+ messages in thread
From: Dmitry Torokhov @ 2005-04-27 6:52 UTC (permalink / raw)
To: Andrew Morton; +Cc: LKML
I8K: Change to use stock dmi infrastructure instead of homegrown
parsing code. The driver now requires box's DMI data to match
list of supported models so driver can be safely compiled-in
by default without fear of it poking into random SMM BIOS
code. DMI checks can be ignored with i8k.ignore_dmi option.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
Documentation/kernel-parameters.txt | 3
arch/i386/kernel/dmi_scan.c | 1
drivers/char/i8k.c | 302 ++++++------------------------------
include/linux/dmi.h | 1
4 files changed, 58 insertions(+), 249 deletions(-)
Index: dtor/arch/i386/kernel/dmi_scan.c
===================================================================
--- dtor.orig/arch/i386/kernel/dmi_scan.c
+++ dtor/arch/i386/kernel/dmi_scan.c
@@ -414,6 +414,7 @@ static void __init dmi_decode(struct dmi
dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6);
dmi_printk(("Serial Number: %s\n",
dmi_string(dm, data[7])));
+ dmi_save_ident(dm, DMI_PRODUCT_SERIAL, 7);
break;
case 2:
dmi_printk(("Board Vendor: %s\n",
Index: dtor/include/linux/dmi.h
===================================================================
--- dtor.orig/include/linux/dmi.h
+++ dtor/include/linux/dmi.h
@@ -9,6 +9,7 @@ enum dmi_field {
DMI_SYS_VENDOR,
DMI_PRODUCT_NAME,
DMI_PRODUCT_VERSION,
+ DMI_PRODUCT_SERIAL,
DMI_BOARD_VENDOR,
DMI_BOARD_NAME,
DMI_BOARD_VERSION,
Index: dtor/drivers/char/i8k.c
===================================================================
--- dtor.orig/drivers/char/i8k.c
+++ dtor/drivers/char/i8k.c
@@ -20,7 +20,7 @@
#include <linux/types.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
-#include <linux/apm_bios.h>
+#include <linux/dmi.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -52,18 +52,7 @@
#define I8K_TEMPERATURE_BUG 1
-#define DELL_SIGNATURE "Dell Computer"
-
-static char *supported_models[] = {
- "Inspiron",
- "Latitude",
- NULL
-};
-
-static char system_vendor[48] = "?";
-static char product_name[48] = "?";
-static char bios_version[4] = "?";
-static char serial_number[16] = "?";
+static char bios_version[4];
MODULE_AUTHOR("Massimo Dal Zotto (dz@debian.org)");
MODULE_DESCRIPTION("Driver for accessing SMM BIOS on Dell laptops");
@@ -73,6 +62,10 @@ static int force;
module_param(force, bool, 0);
MODULE_PARM_DESC(force, "Force loading without checking for supported models");
+static int ignore_dmi;
+module_param(ignore_dmi, bool, 0);
+MODULE_PARM_DESC(ignore_dmi, "Continue probing hardware even if DMI data does not match");
+
static int restricted;
module_param(restricted, bool, 0);
MODULE_PARM_DESC(restricted, "Allow fan control if SYS_ADMIN capability set");
@@ -99,11 +92,10 @@ typedef struct {
unsigned int edi __attribute__ ((packed));
} SMMRegisters;
-typedef struct {
- u8 type;
- u8 length;
- u16 handle;
-} DMIHeader;
+static inline char *i8k_get_dmi_data(int field)
+{
+ return dmi_get_system_info(field) ? : "N/A";
+}
/*
* Call the System Management Mode BIOS. Code provided by Jonathan Buzzard.
@@ -163,15 +155,6 @@ static int i8k_get_bios_version(void)
}
/*
- * Read the machine id.
- */
-static int i8k_get_serial_number(unsigned char *buff)
-{
- strlcpy(buff, serial_number, sizeof(serial_number));
- return 0;
-}
-
-/*
* Read the Fn key status.
*/
static int i8k_get_fn_status(void)
@@ -328,7 +311,7 @@ static int i8k_get_dell_signature(void)
static int i8k_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
unsigned long arg)
{
- int val;
+ int val = 0;
int speed;
unsigned char buff[16];
int __user *argp = (int __user *)arg;
@@ -343,7 +326,7 @@ static int i8k_ioctl(struct inode *ip, s
case I8K_MACHINE_ID:
memset(buff, 0, 16);
- val = i8k_get_serial_number(buff);
+ strlcpy(buff, i8k_get_dmi_data(DMI_PRODUCT_SERIAL), sizeof(buff));
break;
case I8K_FN_STATUS:
@@ -451,10 +434,10 @@ static int i8k_get_info(char *buffer, ch
n = sprintf(buffer, "%s %s %s %d %d %d %d %d %d %d\n",
I8K_PROC_FMT,
bios_version,
- serial_number,
+ dmi_get_system_info(DMI_PRODUCT_SERIAL) ? : "N/A",
cpu_temp,
- left_fan,
- right_fan, left_speed, right_speed, ac_power, fn_key);
+ left_fan, right_fan, left_speed, right_speed,
+ ac_power, fn_key);
return n;
}
@@ -486,201 +469,23 @@ static ssize_t i8k_read(struct file *f,
return len;
}
-static char *__init string_trim(char *s, int size)
-{
- int len;
- char *p;
-
- if ((len = strlen(s)) > size) {
- len = size;
- }
-
- for (p = s + len - 1; len && (*p == ' '); len--, p--) {
- *p = '\0';
- }
-
- return s;
-}
-
-/* DMI code, stolen from arch/i386/kernel/dmi_scan.c */
-
-/*
- * |<-- dmi->length -->|
- * | |
- * |dmi header s=N | string1,\0, ..., stringN,\0, ..., \0
- * | |
- * +-----------------------+
- */
-static char *__init dmi_string(DMIHeader * dmi, u8 s)
-{
- u8 *p;
-
- if (!s) {
- return "";
- }
- s--;
-
- p = (u8 *) dmi + dmi->length;
- while (s > 0) {
- p += strlen(p);
- p++;
- s--;
- }
-
- return p;
-}
-
-static void __init dmi_decode(DMIHeader * dmi)
-{
- u8 *data = (u8 *) dmi;
- char *p;
-
-#ifdef I8K_DEBUG
- int i;
- printk("%08x ", (int)data);
- for (i = 0; i < data[1] && i < 64; i++) {
- printk("%02x ", data[i]);
- }
- printk("\n");
-#endif
-
- switch (dmi->type) {
- case 0: /* BIOS Information */
- p = dmi_string(dmi, data[5]);
- if (*p) {
- strlcpy(bios_version, p, sizeof(bios_version));
- string_trim(bios_version, sizeof(bios_version));
- }
- break;
- case 1: /* System Information */
- p = dmi_string(dmi, data[4]);
- if (*p) {
- strlcpy(system_vendor, p, sizeof(system_vendor));
- string_trim(system_vendor, sizeof(system_vendor));
- }
- p = dmi_string(dmi, data[5]);
- if (*p) {
- strlcpy(product_name, p, sizeof(product_name));
- string_trim(product_name, sizeof(product_name));
- }
- p = dmi_string(dmi, data[7]);
- if (*p) {
- strlcpy(serial_number, p, sizeof(serial_number));
- string_trim(serial_number, sizeof(serial_number));
- }
- break;
- }
-}
-
-static int __init dmi_table(u32 base, int len, int num,
- void (*fn) (DMIHeader *))
-{
- u8 *buf;
- u8 *data;
- DMIHeader *dmi;
- int i = 1;
-
- buf = ioremap(base, len);
- if (buf == NULL) {
- return -1;
- }
- data = buf;
-
- /*
- * Stop when we see al the items the table claimed to have
- * or we run off the end of the table (also happens)
- */
- while ((i < num) && ((data - buf) < len)) {
- dmi = (DMIHeader *) data;
- /*
- * Avoid misparsing crud if the length of the last
- * record is crap
- */
- if ((data - buf + dmi->length) >= len) {
- break;
- }
- fn(dmi);
- data += dmi->length;
- /*
- * Don't go off the end of the data if there is
- * stuff looking like string fill past the end
- */
- while (((data - buf) < len) && (*data || data[1])) {
- data++;
- }
- data += 2;
- i++;
- }
- iounmap(buf);
-
- return 0;
-}
-
-static int __init dmi_iterate(void (*decode) (DMIHeader *))
-{
- unsigned char buf[20];
- void __iomem *p = ioremap(0xe0000, 0x20000), *q;
-
- if (!p)
- return -1;
-
- for (q = p; q < p + 0x20000; q += 16) {
- memcpy_fromio(buf, q, 20);
- if (memcmp(buf, "_DMI_", 5) == 0) {
- u16 num = buf[13] << 8 | buf[12];
- u16 len = buf[7] << 8 | buf[6];
- u32 base = buf[11] << 24 | buf[10] << 16 | buf[9] << 8 | buf[8];
-#ifdef I8K_DEBUG
- printk(KERN_INFO "DMI %d.%d present.\n",
- buf[14] >> 4, buf[14] & 0x0F);
- printk(KERN_INFO "%d structures occupying %d bytes.\n",
- buf[13] << 8 | buf[12], buf[7] << 8 | buf[6]);
- printk(KERN_INFO "DMI table at 0x%08X.\n",
- buf[11] << 24 | buf[10] << 16 | buf[9] << 8 |
- buf[8]);
-#endif
- if (dmi_table(base, len, num, decode) == 0) {
- iounmap(p);
- return 0;
- }
- }
- }
- iounmap(p);
- return -1;
-}
-
-/* end of DMI code */
-
-/*
- * Get DMI information.
- */
-static int __init i8k_dmi_probe(void)
-{
- char **p;
-
- if (dmi_iterate(dmi_decode) != 0) {
- printk(KERN_INFO "i8k: unable to get DMI information\n");
- return -ENODEV;
- }
-
- if (strncmp(system_vendor, DELL_SIGNATURE, strlen(DELL_SIGNATURE)) != 0) {
- printk(KERN_INFO "i8k: not running on a Dell system\n");
- return -ENODEV;
- }
-
- for (p = supported_models;; p++) {
- if (!*p) {
- printk(KERN_INFO "i8k: unsupported model: %s\n",
- product_name);
- return -ENODEV;
- }
- if (strncmp(product_name, *p, strlen(*p)) == 0) {
- break;
- }
- }
-
- return 0;
-}
+static struct dmi_system_id __initdata i8k_dmi_table[] = {
+ {
+ .ident = "Dell Inspiron",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron"),
+ },
+ },
+ {
+ .ident = "Dell Latitude",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude"),
+ },
+ },
+ { }
+};
/*
* Probe for the presence of a supported laptop.
@@ -689,23 +494,30 @@ static int __init i8k_probe(void)
{
char buff[4];
int version;
- int smm_found = 0;
/*
* Get DMI information
*/
- if (i8k_dmi_probe() != 0) {
+ if (!dmi_check_system(i8k_dmi_table)) {
+ if (!ignore_dmi && !force)
+ return -ENODEV;
+
+ printk(KERN_INFO "i8k: not running on a supported Dell system.\n");
printk(KERN_INFO "i8k: vendor=%s, model=%s, version=%s\n",
- system_vendor, product_name, bios_version);
+ i8k_get_dmi_data(DMI_SYS_VENDOR),
+ i8k_get_dmi_data(DMI_PRODUCT_NAME),
+ i8k_get_dmi_data(DMI_BIOS_VERSION));
}
+ strlcpy(bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION), sizeof(bios_version));
+
/*
* Get SMM Dell signature
*/
if (i8k_get_dell_signature() != 0) {
- printk(KERN_INFO "i8k: unable to get SMM Dell signature\n");
- } else {
- smm_found = 1;
+ printk(KERN_ERR "i8k: unable to get SMM Dell signature\n");
+ if (!force)
+ return -ENODEV;
}
/*
@@ -713,9 +525,8 @@ static int __init i8k_probe(void)
*/
version = i8k_get_bios_version();
if (version <= 0) {
- printk(KERN_INFO "i8k: unable to get SMM BIOS version\n");
+ printk(KERN_WARNING "i8k: unable to get SMM BIOS version\n");
} else {
- smm_found = 1;
buff[0] = (version >> 16) & 0xff;
buff[1] = (version >> 8) & 0xff;
buff[2] = (version) & 0xff;
@@ -723,21 +534,15 @@ static int __init i8k_probe(void)
/*
* If DMI BIOS version is unknown use SMM BIOS version.
*/
- if (bios_version[0] == '?') {
- strcpy(bios_version, buff);
- }
+ if (!dmi_get_system_info(DMI_BIOS_VERSION))
+ strlcpy(bios_version, buff, sizeof(bios_version));
+
/*
* Check if the two versions match.
*/
- if (strncmp(buff, bios_version, sizeof(bios_version)) != 0) {
- printk(KERN_INFO
- "i8k: BIOS version mismatch: %s != %s\n", buff,
- bios_version);
- }
- }
-
- if (!smm_found && !force) {
- return -ENODEV;
+ if (strncmp(buff, bios_version, sizeof(bios_version)) != 0)
+ printk(KERN_WARNING "i8k: BIOS version mismatch: %s != %s\n",
+ buff, bios_version);
}
return 0;
@@ -751,9 +556,8 @@ int __init i8k_init(void)
struct proc_dir_entry *proc_i8k;
/* Are we running on an supported laptop? */
- if (i8k_probe() != 0) {
+ if (i8k_probe())
return -ENODEV;
- }
/* Register the proc entry */
proc_i8k = create_proc_info_entry("i8k", 0, NULL, i8k_get_info);
Index: dtor/Documentation/kernel-parameters.txt
===================================================================
--- dtor.orig/Documentation/kernel-parameters.txt
+++ dtor/Documentation/kernel-parameters.txt
@@ -548,6 +548,9 @@ running once the system is up.
i810= [HW,DRM]
+ i8k.ignore_dmi [HW] Continue probing hardware even if DMI data
+ indicates that the driver is running on unsupported
+ hardware.
i8k.force [HW] Activate i8k driver even if SMM BIOS signature
does not match list of supported models.
i8k.power_status
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 4/6] I8K: convert to seqfile
2005-04-27 6:49 [PATCH 0/6] I8K and Toshiba legacy driver cleanup Dmitry Torokhov
` (2 preceding siblings ...)
2005-04-27 6:52 ` [PATCH 3/6] I8K: use standard DMI interface Dmitry Torokhov
@ 2005-04-27 6:53 ` Dmitry Torokhov
2005-04-27 6:54 ` [PATCH 5/6] I8K: initialization code cleanup; formatting Dmitry Torokhov
2005-04-27 6:55 ` [PATCH 6/6] I8K: add new BIOS signatures Dmitry Torokhov
5 siblings, 0 replies; 11+ messages in thread
From: Dmitry Torokhov @ 2005-04-27 6:53 UTC (permalink / raw)
To: Andrew Morton; +Cc: LKML
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="utf-8", Size: 3363 bytes --]
I8K: Change proc code to use seq_file.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
i8k.c | 64 ++++++++++++++++++++++------------------------------------------
1 files changed, 22 insertions(+), 42 deletions(-)
Index: dtor/drivers/char/i8k.c
===================================================================
--- dtor.orig/drivers/char/i8k.c
+++ dtor/drivers/char/i8k.c
@@ -20,13 +20,14 @@
#include <linux/types.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <linux/dmi.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <linux/i8k.h>
-#define I8K_VERSION "1.13 14/05/2002"
+#define I8K_VERSION "1.14 21/02/2005"
#define I8K_SMM_FN_STATUS 0x0025
#define I8K_SMM_POWER_STATUS 0x0069
@@ -74,13 +75,16 @@ static int power_status;
module_param(power_status, bool, 0600);
MODULE_PARM_DESC(power_status, "Report power status in /proc/i8k");
-static ssize_t i8k_read(struct file *, char __user *, size_t, loff_t *);
+static int i8k_open_fs(struct inode *inode, struct file *file);
static int i8k_ioctl(struct inode *, struct file *, unsigned int,
unsigned long);
static struct file_operations i8k_fops = {
- .read = i8k_read,
- .ioctl = i8k_ioctl,
+ .open = i8k_open_fs,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .ioctl = i8k_ioctl,
};
typedef struct {
@@ -400,9 +404,9 @@ static int i8k_ioctl(struct inode *ip, s
/*
* Print the information for /proc/i8k.
*/
-static int i8k_get_info(char *buffer, char **start, off_t fpos, int length)
+static int i8k_proc_show(struct seq_file *seq, void *offset)
{
- int n, fn_key, cpu_temp, ac_power;
+ int fn_key, cpu_temp, ac_power;
int left_fan, right_fan, left_speed, right_speed;
cpu_temp = i8k_get_cpu_temp(); /* 11100 µs */
@@ -431,42 +435,18 @@ static int i8k_get_info(char *buffer, ch
* 9) AC power
* 10) Fn Key status
*/
- n = sprintf(buffer, "%s %s %s %d %d %d %d %d %d %d\n",
- I8K_PROC_FMT,
- bios_version,
- dmi_get_system_info(DMI_PRODUCT_SERIAL) ? : "N/A",
- cpu_temp,
- left_fan, right_fan, left_speed, right_speed,
- ac_power, fn_key);
-
- return n;
+ return seq_printf(seq, "%s %s %s %d %d %d %d %d %d %d\n",
+ I8K_PROC_FMT,
+ bios_version,
+ dmi_get_system_info(DMI_PRODUCT_SERIAL) ? : "N/A",
+ cpu_temp,
+ left_fan, right_fan, left_speed, right_speed,
+ ac_power, fn_key);
}
-static ssize_t i8k_read(struct file *f, char __user * buffer, size_t len,
- loff_t * fpos)
+static int i8k_open_fs(struct inode *inode, struct file *file)
{
- int n;
- char info[128];
-
- n = i8k_get_info(info, NULL, 0, 128);
- if (n <= 0) {
- return n;
- }
-
- if (*fpos >= n) {
- return 0;
- }
-
- if ((*fpos + len) >= n) {
- len = n - *fpos;
- }
-
- if (copy_to_user(buffer, info, len) != 0) {
- return -EFAULT;
- }
-
- *fpos += len;
- return len;
+ return single_open(file, i8k_proc_show, NULL);
}
static struct dmi_system_id __initdata i8k_dmi_table[] = {
@@ -560,10 +540,10 @@ int __init i8k_init(void)
return -ENODEV;
/* Register the proc entry */
- proc_i8k = create_proc_info_entry("i8k", 0, NULL, i8k_get_info);
- if (!proc_i8k) {
+ proc_i8k = create_proc_entry("i8k", 0, NULL);
+ if (!proc_i8k)
return -ENOENT;
- }
+
proc_i8k->proc_fops = &i8k_fops;
proc_i8k->owner = THIS_MODULE;
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 5/6] I8K: initialization code cleanup; formatting
2005-04-27 6:49 [PATCH 0/6] I8K and Toshiba legacy driver cleanup Dmitry Torokhov
` (3 preceding siblings ...)
2005-04-27 6:53 ` [PATCH 4/6] I8K: convert to seqfile Dmitry Torokhov
@ 2005-04-27 6:54 ` Dmitry Torokhov
2005-04-27 6:55 ` [PATCH 6/6] I8K: add new BIOS signatures Dmitry Torokhov
5 siblings, 0 replies; 11+ messages in thread
From: Dmitry Torokhov @ 2005-04-27 6:54 UTC (permalink / raw)
To: Andrew Morton; +Cc: LKML
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="utf-8", Size: 8480 bytes --]
I8K: use module_{init|exit} instead of old style #ifdef MODULE
code, some formatting changes.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
i8k.c | 149 ++++++++++++++++++++---------------------------------------------
misc.c | 4 -
2 files changed, 47 insertions(+), 106 deletions(-)
Index: dtor/drivers/char/misc.c
===================================================================
--- dtor.orig/drivers/char/misc.c
+++ dtor/drivers/char/misc.c
@@ -66,7 +66,6 @@ static unsigned char misc_minors[DYNAMIC
extern int rtc_DP8570A_init(void);
extern int rtc_MK48T08_init(void);
extern int pmu_device_init(void);
-extern int i8k_init(void);
#ifdef CONFIG_PROC_FS
static void *misc_seq_start(struct seq_file *seq, loff_t *pos)
@@ -313,9 +312,6 @@ static int __init misc_init(void)
#ifdef CONFIG_PMAC_PBOOK
pmu_device_init();
#endif
-#ifdef CONFIG_I8K
- i8k_init();
-#endif
if (register_chrdev(MISC_MAJOR,"misc",&misc_fops)) {
printk("unable to get major %d for misc devices\n",
MISC_MAJOR);
Index: dtor/drivers/char/i8k.c
===================================================================
--- dtor.orig/drivers/char/i8k.c
+++ dtor/drivers/char/i8k.c
@@ -87,14 +87,14 @@ static struct file_operations i8k_fops =
.ioctl = i8k_ioctl,
};
-typedef struct {
+struct smm_regs {
unsigned int eax;
unsigned int ebx __attribute__ ((packed));
unsigned int ecx __attribute__ ((packed));
unsigned int edx __attribute__ ((packed));
unsigned int esi __attribute__ ((packed));
unsigned int edi __attribute__ ((packed));
-} SMMRegisters;
+};
static inline char *i8k_get_dmi_data(int field)
{
@@ -104,7 +104,7 @@ static inline char *i8k_get_dmi_data(int
/*
* Call the System Management Mode BIOS. Code provided by Jonathan Buzzard.
*/
-static int i8k_smm(SMMRegisters * regs)
+static int i8k_smm(struct smm_regs *regs)
{
int rc;
int eax = regs->eax;
@@ -134,9 +134,8 @@ static int i8k_smm(SMMRegisters * regs)
: "a"(regs)
: "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory");
- if ((rc != 0) || ((regs->eax & 0xffff) == 0xffff) || (regs->eax == eax)) {
+ if (rc != 0 || (regs->eax & 0xffff) == 0xffff || regs->eax == eax)
return -EINVAL;
- }
return 0;
}
@@ -147,15 +146,9 @@ static int i8k_smm(SMMRegisters * regs)
*/
static int i8k_get_bios_version(void)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
- int rc;
-
- regs.eax = I8K_SMM_BIOS_VERSION;
- if ((rc = i8k_smm(®s)) < 0) {
- return rc;
- }
+ struct smm_regs regs = { .eax = I8K_SMM_BIOS_VERSION, };
- return regs.eax;
+ return i8k_smm(®s) ? : regs.eax;
}
/*
@@ -163,13 +156,11 @@ static int i8k_get_bios_version(void)
*/
static int i8k_get_fn_status(void)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+ struct smm_regs regs = { .eax = I8K_SMM_FN_STATUS, };
int rc;
- regs.eax = I8K_SMM_FN_STATUS;
- if ((rc = i8k_smm(®s)) < 0) {
+ if ((rc = i8k_smm(®s)) < 0)
return rc;
- }
switch ((regs.eax >> I8K_FN_SHIFT) & I8K_FN_MASK) {
case I8K_FN_UP:
@@ -188,20 +179,13 @@ static int i8k_get_fn_status(void)
*/
static int i8k_get_power_status(void)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+ struct smm_regs regs = { .eax = I8K_SMM_POWER_STATUS, };
int rc;
- regs.eax = I8K_SMM_POWER_STATUS;
- if ((rc = i8k_smm(®s)) < 0) {
+ if ((rc = i8k_smm(®s)) < 0)
return rc;
- }
- switch (regs.eax & 0xff) {
- case I8K_POWER_AC:
- return I8K_AC;
- default:
- return I8K_BATTERY;
- }
+ return (regs.eax & 0xff) == I8K_POWER_AC ? I8K_AC : I8K_BATTERY;
}
/*
@@ -209,16 +193,10 @@ static int i8k_get_power_status(void)
*/
static int i8k_get_fan_status(int fan)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
- int rc;
+ struct smm_regs regs = { .eax = I8K_SMM_GET_FAN, };
- regs.eax = I8K_SMM_GET_FAN;
regs.ebx = fan & 0xff;
- if ((rc = i8k_smm(®s)) < 0) {
- return rc;
- }
-
- return (regs.eax & 0xff);
+ return i8k_smm(®s) ? : regs.eax & 0xff;
}
/*
@@ -226,16 +204,10 @@ static int i8k_get_fan_status(int fan)
*/
static int i8k_get_fan_speed(int fan)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
- int rc;
+ struct smm_regs regs = { .eax = I8K_SMM_GET_SPEED, };
- regs.eax = I8K_SMM_GET_SPEED;
regs.ebx = fan & 0xff;
- if ((rc = i8k_smm(®s)) < 0) {
- return rc;
- }
-
- return (regs.eax & 0xffff) * I8K_FAN_MULT;
+ return i8k_smm(®s) ? : (regs.eax & 0xffff) * I8K_FAN_MULT;
}
/*
@@ -243,18 +215,12 @@ static int i8k_get_fan_speed(int fan)
*/
static int i8k_set_fan(int fan, int speed)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
- int rc;
+ struct smm_regs regs = { .eax = I8K_SMM_SET_FAN, };
speed = (speed < 0) ? 0 : ((speed > I8K_FAN_MAX) ? I8K_FAN_MAX : speed);
-
- regs.eax = I8K_SMM_SET_FAN;
regs.ebx = (fan & 0xff) | (speed << 8);
- if ((rc = i8k_smm(®s)) < 0) {
- return rc;
- }
- return (i8k_get_fan_status(fan));
+ return i8k_smm(®s) ? : i8k_get_fan_status(fan);
}
/*
@@ -262,18 +228,17 @@ static int i8k_set_fan(int fan, int spee
*/
static int i8k_get_cpu_temp(void)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+ struct smm_regs regs = { .eax = I8K_SMM_GET_TEMP, };
int rc;
int temp;
#ifdef I8K_TEMPERATURE_BUG
- static int prev = 0;
+ static int prev;
#endif
- regs.eax = I8K_SMM_GET_TEMP;
- if ((rc = i8k_smm(®s)) < 0) {
+ if ((rc = i8k_smm(®s)) < 0)
return rc;
- }
+
temp = regs.eax & 0xff;
#ifdef I8K_TEMPERATURE_BUG
@@ -297,19 +262,13 @@ static int i8k_get_cpu_temp(void)
static int i8k_get_dell_signature(void)
{
- SMMRegisters regs = { 0, 0, 0, 0, 0, 0 };
+ struct smm_regs regs = { .eax = I8K_SMM_GET_DELL_SIG, };
int rc;
- regs.eax = I8K_SMM_GET_DELL_SIG;
- if ((rc = i8k_smm(®s)) < 0) {
+ if ((rc = i8k_smm(®s)) < 0)
return rc;
- }
- if ((regs.eax == 1145651527) && (regs.edx == 1145392204)) {
- return 0;
- } else {
- return -1;
- }
+ return regs.eax == 1145651527 && regs.edx == 1145392204 ? 0 : -1;
}
static int i8k_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
@@ -346,29 +305,29 @@ static int i8k_ioctl(struct inode *ip, s
break;
case I8K_GET_SPEED:
- if (copy_from_user(&val, argp, sizeof(int))) {
+ if (copy_from_user(&val, argp, sizeof(int)))
return -EFAULT;
- }
+
val = i8k_get_fan_speed(val);
break;
case I8K_GET_FAN:
- if (copy_from_user(&val, argp, sizeof(int))) {
+ if (copy_from_user(&val, argp, sizeof(int)))
return -EFAULT;
- }
+
val = i8k_get_fan_status(val);
break;
case I8K_SET_FAN:
- if (restricted && !capable(CAP_SYS_ADMIN)) {
+ if (restricted && !capable(CAP_SYS_ADMIN))
return -EPERM;
- }
- if (copy_from_user(&val, argp, sizeof(int))) {
+
+ if (copy_from_user(&val, argp, sizeof(int)))
return -EFAULT;
- }
- if (copy_from_user(&speed, argp + 1, sizeof(int))) {
+
+ if (copy_from_user(&speed, argp + 1, sizeof(int)))
return -EFAULT;
- }
+
val = i8k_set_fan(val, speed);
break;
@@ -376,25 +335,24 @@ static int i8k_ioctl(struct inode *ip, s
return -EINVAL;
}
- if (val < 0) {
+ if (val < 0)
return val;
- }
switch (cmd) {
case I8K_BIOS_VERSION:
- if (copy_to_user(argp, &val, 4)) {
+ if (copy_to_user(argp, &val, 4))
return -EFAULT;
- }
+
break;
case I8K_MACHINE_ID:
- if (copy_to_user(argp, buff, 16)) {
+ if (copy_to_user(argp, buff, 16))
return -EFAULT;
- }
+
break;
default:
- if (copy_to_user(argp, &val, sizeof(int))) {
+ if (copy_to_user(argp, &val, sizeof(int)))
return -EFAULT;
- }
+
break;
}
@@ -415,11 +373,10 @@ static int i8k_proc_show(struct seq_file
left_speed = i8k_get_fan_speed(I8K_FAN_LEFT); /* 580 µs */
right_speed = i8k_get_fan_speed(I8K_FAN_RIGHT); /* 580 µs */
fn_key = i8k_get_fn_status(); /* 750 µs */
- if (power_status) {
+ if (power_status)
ac_power = i8k_get_power_status(); /* 14700 µs */
- } else {
+ else
ac_power = -1;
- }
/*
* Info:
@@ -528,10 +485,7 @@ static int __init i8k_probe(void)
return 0;
}
-#ifdef MODULE
-static
-#endif
-int __init i8k_init(void)
+static int __init i8k_init(void)
{
struct proc_dir_entry *proc_i8k;
@@ -554,19 +508,10 @@ int __init i8k_init(void)
return 0;
}
-#ifdef MODULE
-int init_module(void)
+static void __exit i8k_exit(void)
{
- return i8k_init();
-}
-
-void cleanup_module(void)
-{
- /* Remove the proc entry */
remove_proc_entry("i8k", NULL);
-
- printk(KERN_INFO "i8k: module unloaded\n");
}
-#endif
-/* end of file */
+module_init(i8k_init);
+module_exit(i8k_exit);
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 6/6] I8K: add new BIOS signatures
2005-04-27 6:49 [PATCH 0/6] I8K and Toshiba legacy driver cleanup Dmitry Torokhov
` (4 preceding siblings ...)
2005-04-27 6:54 ` [PATCH 5/6] I8K: initialization code cleanup; formatting Dmitry Torokhov
@ 2005-04-27 6:55 ` Dmitry Torokhov
5 siblings, 0 replies; 11+ messages in thread
From: Dmitry Torokhov @ 2005-04-27 6:55 UTC (permalink / raw)
To: Andrew Morton; +Cc: LKML
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="utf-8", Size: 2921 bytes --]
I8K: add BIOS signatures of a newer Dell laptops, also there can be
more than one temperature sensor reported by BIOS. Lifted from
driver 1.25 on Massimo Dal Zotto's site.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
i8k.c | 32 ++++++++++++++++++++++++--------
1 files changed, 24 insertions(+), 8 deletions(-)
Index: dtor/drivers/char/i8k.c
===================================================================
--- dtor.orig/drivers/char/i8k.c
+++ dtor/drivers/char/i8k.c
@@ -35,7 +35,8 @@
#define I8K_SMM_GET_FAN 0x00a3
#define I8K_SMM_GET_SPEED 0x02a3
#define I8K_SMM_GET_TEMP 0x10a3
-#define I8K_SMM_GET_DELL_SIG 0xffa3
+#define I8K_SMM_GET_DELL_SIG1 0xfea3
+#define I8K_SMM_GET_DELL_SIG2 0xffa3
#define I8K_SMM_BIOS_VERSION 0x00a6
#define I8K_FAN_MULT 30
@@ -226,7 +227,7 @@ static int i8k_set_fan(int fan, int spee
/*
* Read the cpu temperature.
*/
-static int i8k_get_cpu_temp(void)
+static int i8k_get_temp(int sensor)
{
struct smm_regs regs = { .eax = I8K_SMM_GET_TEMP, };
int rc;
@@ -235,7 +236,7 @@ static int i8k_get_cpu_temp(void)
#ifdef I8K_TEMPERATURE_BUG
static int prev;
#endif
-
+ regs.ebx = sensor & 0xff;
if ((rc = i8k_smm(®s)) < 0)
return rc;
@@ -260,9 +261,9 @@ static int i8k_get_cpu_temp(void)
return temp;
}
-static int i8k_get_dell_signature(void)
+static int i8k_get_dell_signature(int req_fn)
{
- struct smm_regs regs = { .eax = I8K_SMM_GET_DELL_SIG, };
+ struct smm_regs regs = { .eax = req_fn, };
int rc;
if ((rc = i8k_smm(®s)) < 0)
@@ -301,7 +302,7 @@ static int i8k_ioctl(struct inode *ip, s
break;
case I8K_GET_TEMP:
- val = i8k_get_cpu_temp();
+ val = i8k_get_temp(0);
break;
case I8K_GET_SPEED:
@@ -367,7 +368,7 @@ static int i8k_proc_show(struct seq_file
int fn_key, cpu_temp, ac_power;
int left_fan, right_fan, left_speed, right_speed;
- cpu_temp = i8k_get_cpu_temp(); /* 11100 µs */
+ cpu_temp = i8k_get_temp(0); /* 11100 µs */
left_fan = i8k_get_fan_status(I8K_FAN_LEFT); /* 580 µs */
right_fan = i8k_get_fan_status(I8K_FAN_RIGHT); /* 580 µs */
left_speed = i8k_get_fan_speed(I8K_FAN_LEFT); /* 580 µs */
@@ -421,6 +422,20 @@ static struct dmi_system_id __initdata i
DMI_MATCH(DMI_PRODUCT_NAME, "Latitude"),
},
},
+ {
+ .ident = "Dell Inspiron 2",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron"),
+ },
+ },
+ {
+ .ident = "Dell Latitude 2",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude"),
+ },
+ },
{ }
};
@@ -451,7 +466,8 @@ static int __init i8k_probe(void)
/*
* Get SMM Dell signature
*/
- if (i8k_get_dell_signature() != 0) {
+ if (i8k_get_dell_signature(I8K_SMM_GET_DELL_SIG1) &&
+ i8k_get_dell_signature(I8K_SMM_GET_DELL_SIG2)) {
printk(KERN_ERR "i8k: unable to get SMM Dell signature\n");
if (!force)
return -ENODEV;
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 1/6] Toshiba driver cleanup
2005-04-27 6:50 ` [PATCH 1/6] Toshiba " Dmitry Torokhov
@ 2005-04-27 7:33 ` Andrew Morton
2005-04-27 13:42 ` Dmitry Torokhov
0 siblings, 1 reply; 11+ messages in thread
From: Andrew Morton @ 2005-04-27 7:33 UTC (permalink / raw)
To: Dmitry Torokhov; +Cc: linux-kernel
Dmitry Torokhov <dtor_core@ameritech.net> wrote:
>
> Toshiba legacy driver cleanup:
--- 25/drivers/char/toshiba.c~toshiba-driver-cleanup-fix 2005-04-27 00:32:47.306512192 -0700
+++ 25-akpm/drivers/char/toshiba.c 2005-04-27 00:32:51.521871360 -0700
@@ -79,7 +79,7 @@ MODULE_DESCRIPTION("Toshiba laptop SMM d
MODULE_SUPPORTED_DEVICE("toshiba");
static int tosh_fn;
-module_param(fn, int, 0);
+module_param(tosh_fn, int, 0);
MODULE_PARM_DESC(tosh_fn, "User specified Fn key detection port");
static int tosh_id;
_
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 1/6] Toshiba driver cleanup
2005-04-27 7:33 ` Andrew Morton
@ 2005-04-27 13:42 ` Dmitry Torokhov
2005-04-28 4:58 ` Dmitry Torokhov
0 siblings, 1 reply; 11+ messages in thread
From: Dmitry Torokhov @ 2005-04-27 13:42 UTC (permalink / raw)
To: Andrew Morton; +Cc: linux-kernel
On 4/27/05, Andrew Morton <akpm@osdl.org> wrote:
> Dmitry Torokhov <dtor_core@ameritech.net> wrote:
> >
> > Toshiba legacy driver cleanup:
>
> --- 25/drivers/char/toshiba.c~toshiba-driver-cleanup-fix 2005-04-27 00:32:47.306512192 -0700
> +++ 25-akpm/drivers/char/toshiba.c 2005-04-27 00:32:51.521871360 -0700
> @@ -79,7 +79,7 @@ MODULE_DESCRIPTION("Toshiba laptop SMM d
> MODULE_SUPPORTED_DEVICE("toshiba");
>
> static int tosh_fn;
> -module_param(fn, int, 0);
> +module_param(tosh_fn, int, 0);
> MODULE_PARM_DESC(tosh_fn, "User specified Fn key detection port");
>
Ahem, sorry, somehow picked up bad version... It was supposed to be
module_param_named(). I will send an updated patch tonight.
--
Dmitry
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 1/6] Toshiba driver cleanup
2005-04-27 13:42 ` Dmitry Torokhov
@ 2005-04-28 4:58 ` Dmitry Torokhov
0 siblings, 0 replies; 11+ messages in thread
From: Dmitry Torokhov @ 2005-04-28 4:58 UTC (permalink / raw)
To: linux-kernel; +Cc: Andrew Morton
On Wednesday 27 April 2005 08:42, Dmitry Torokhov wrote:
> On 4/27/05, Andrew Morton <akpm@osdl.org> wrote:
> > Dmitry Torokhov <dtor_core@ameritech.net> wrote:
> > >
> > > Toshiba legacy driver cleanup:
> >
> > --- 25/drivers/char/toshiba.c~toshiba-driver-cleanup-fix 2005-04-27 00:32:47.306512192 -0700
> > +++ 25-akpm/drivers/char/toshiba.c 2005-04-27 00:32:51.521871360 -0700
> > @@ -79,7 +79,7 @@ MODULE_DESCRIPTION("Toshiba laptop SMM d
> > MODULE_SUPPORTED_DEVICE("toshiba");
> >
> > static int tosh_fn;
> > -module_param(fn, int, 0);
> > +module_param(tosh_fn, int, 0);
> > MODULE_PARM_DESC(tosh_fn, "User specified Fn key detection port");
> >
>
> Ahem, sorry, somehow picked up bad version... It was supposed to be
> module_param_named(). I will send an updated patch tonight.
>
Ok, this is the right one. Parameter is changed to "toshiba.fn" and
documented in kernel-parameters.txt
--
Dmitry
===================================================================
Toshiba legacy driver cleanup:
- use module_init/module_exit for initialization instead of using
#ifdef MODULE and calling tosh_init manually from drivers/char/misc.c
- do not explicitly initialize static variables
- some whitespace and formatting cleanups
- rename module parameter tosh_fn to toshiba.fn and document in
kernel-parameters.txt
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
Documentation/kernel-parameters.txt | 5 ++
drivers/char/misc.c | 4 --
drivers/char/toshiba.c | 62 ++++++++++++++----------------------
3 files changed, 30 insertions(+), 41 deletions(-)
Index: dtor/drivers/char/toshiba.c
===================================================================
--- dtor.orig/drivers/char/toshiba.c
+++ dtor/drivers/char/toshiba.c
@@ -73,16 +73,20 @@
#define TOSH_MINOR_DEV 181
-static int tosh_id = 0x0000;
-static int tosh_bios = 0x0000;
-static int tosh_date = 0x0000;
-static int tosh_sci = 0x0000;
-static int tosh_fan = 0;
-
-static int tosh_fn = 0;
-
-module_param(tosh_fn, int, 0);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jonathan Buzzard <jonathan@buzzard.org.uk>");
+MODULE_DESCRIPTION("Toshiba laptop SMM driver");
+MODULE_SUPPORTED_DEVICE("toshiba");
+static int tosh_fn;
+module_param_named(fn, tosh_fn, int, 0);
+MODULE_PARM_DESC(fn, "User specified Fn key detection port");
+
+static int tosh_id;
+static int tosh_bios;
+static int tosh_date;
+static int tosh_sci;
+static int tosh_fan;
static int tosh_ioctl(struct inode *, struct file *, unsigned int,
unsigned long);
@@ -359,7 +363,7 @@ static int tosh_get_machine_id(void)
unsigned long address;
id = (0x100*(int) isa_readb(0xffffe))+((int) isa_readb(0xffffa));
-
+
/* do we have a SCTTable machine identication number on our hands */
if (id==0xfc2f) {
@@ -424,7 +428,7 @@ static int tosh_probe(void)
}
/* call the Toshiba SCI support check routine */
-
+
regs.eax = 0xf0f0;
regs.ebx = 0x0000;
regs.ecx = 0x0000;
@@ -440,7 +444,7 @@ static int tosh_probe(void)
/* if we get this far then we are running on a Toshiba (probably)! */
tosh_sci = regs.edx & 0xffff;
-
+
/* next get the machine ID of the current laptop */
tosh_id = tosh_get_machine_id();
@@ -475,16 +479,15 @@ static int tosh_probe(void)
return 0;
}
-int __init tosh_init(void)
+static int __init toshiba_init(void)
{
int retval;
/* are we running on a Toshiba laptop */
- if (tosh_probe()!=0)
- return -EIO;
+ if (tosh_probe())
+ return -ENODEV;
- printk(KERN_INFO "Toshiba System Managment Mode driver v"
- TOSH_VERSION"\n");
+ printk(KERN_INFO "Toshiba System Managment Mode driver v" TOSH_VERSION "\n");
/* set the port to use for Fn status if not specified as a parameter */
if (tosh_fn==0x00)
@@ -492,12 +495,12 @@ int __init tosh_init(void)
/* register the device file */
retval = misc_register(&tosh_device);
- if(retval < 0)
+ if (retval < 0)
return retval;
#ifdef CONFIG_PROC_FS
/* register the proc entry */
- if(create_proc_info_entry("toshiba", 0, NULL, tosh_get_info) == NULL){
+ if (create_proc_info_entry("toshiba", 0, NULL, tosh_get_info) == NULL) {
misc_deregister(&tosh_device);
return -ENOMEM;
}
@@ -506,27 +509,12 @@ int __init tosh_init(void)
return 0;
}
-#ifdef MODULE
-int init_module(void)
+static void __exit toshiba_exit(void)
{
- return tosh_init();
-}
-
-void cleanup_module(void)
-{
- /* remove the proc entry */
-
remove_proc_entry("toshiba", NULL);
-
- /* unregister the device file */
-
misc_deregister(&tosh_device);
}
-#endif
-MODULE_LICENSE("GPL");
-MODULE_PARM_DESC(tosh_fn, "User specified Fn key detection port");
-MODULE_AUTHOR("Jonathan Buzzard <jonathan@buzzard.org.uk>");
-MODULE_DESCRIPTION("Toshiba laptop SMM driver");
-MODULE_SUPPORTED_DEVICE("toshiba");
+module_init(toshiba_init);
+module_exit(toshiba_exit);
Index: dtor/drivers/char/misc.c
===================================================================
--- dtor.orig/drivers/char/misc.c
+++ dtor/drivers/char/misc.c
@@ -66,7 +66,6 @@ static unsigned char misc_minors[DYNAMIC
extern int rtc_DP8570A_init(void);
extern int rtc_MK48T08_init(void);
extern int pmu_device_init(void);
-extern int tosh_init(void);
extern int i8k_init(void);
#ifdef CONFIG_PROC_FS
@@ -314,9 +313,6 @@ static int __init misc_init(void)
#ifdef CONFIG_PMAC_PBOOK
pmu_device_init();
#endif
-#ifdef CONFIG_TOSHIBA
- tosh_init();
-#endif
#ifdef CONFIG_I8K
i8k_init();
#endif
Index: dtor/Documentation/kernel-parameters.txt
===================================================================
--- dtor.orig/Documentation/kernel-parameters.txt
+++ dtor/Documentation/kernel-parameters.txt
@@ -1427,6 +1427,11 @@ running once the system is up.
See comment before function dc390_setup() in
drivers/scsi/tmscsim.c.
+ toshiba.fn= [HW] Specifies port Toshiba laptop SMM driver should
+ use to read status of Fn key. 0 (default value) tells
+ the driver to automatically select appropriate port
+ depending on the model of the laptop.
+
tp720= [HW,PS2]
trix= [HW,OSS] MediaTrix AudioTrix Pro
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 3/6] I8K: use standard DMI interface
2005-04-27 6:52 ` [PATCH 3/6] I8K: use standard DMI interface Dmitry Torokhov
@ 2005-04-28 5:02 ` Dmitry Torokhov
0 siblings, 0 replies; 11+ messages in thread
From: Dmitry Torokhov @ 2005-04-28 5:02 UTC (permalink / raw)
To: linux-kernel; +Cc: Andrew Morton
Andrew brought to my attention yet again that I forgot to
export dmi_get_system_info.
--
Dmitry
=============================================================
I8K: Change to use stock dmi infrastructure instead of homegrown
parsing code. The driver now requires box's DMI data to match
list of supported models so driver can be safely compiled-in
by default without fear of it poking into random SMM BIOS
code. DMI checks can be ignored with i8k.ignore_dmi option.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
Documentation/kernel-parameters.txt | 3
arch/i386/kernel/dmi_scan.c | 4
drivers/char/i8k.c | 302 ++++++------------------------------
include/linux/dmi.h | 1
4 files changed, 60 insertions(+), 250 deletions(-)
Index: dtor/arch/i386/kernel/dmi_scan.c
===================================================================
--- dtor.orig/arch/i386/kernel/dmi_scan.c
+++ dtor/arch/i386/kernel/dmi_scan.c
@@ -414,6 +414,7 @@ static void __init dmi_decode(struct dmi
dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6);
dmi_printk(("Serial Number: %s\n",
dmi_string(dm, data[7])));
+ dmi_save_ident(dm, DMI_PRODUCT_SERIAL, 7);
break;
case 2:
dmi_printk(("Board Vendor: %s\n",
@@ -480,8 +481,9 @@ EXPORT_SYMBOL(dmi_check_system);
* Returns one DMI data value, can be used to perform
* complex DMI data checks.
*/
-char * dmi_get_system_info(int field)
+char *dmi_get_system_info(int field)
{
return dmi_ident[field];
}
+EXPORT_SYMBOL(dmi_get_system_info);
Index: dtor/include/linux/dmi.h
===================================================================
--- dtor.orig/include/linux/dmi.h
+++ dtor/include/linux/dmi.h
@@ -9,6 +9,7 @@ enum dmi_field {
DMI_SYS_VENDOR,
DMI_PRODUCT_NAME,
DMI_PRODUCT_VERSION,
+ DMI_PRODUCT_SERIAL,
DMI_BOARD_VENDOR,
DMI_BOARD_NAME,
DMI_BOARD_VERSION,
Index: dtor/drivers/char/i8k.c
===================================================================
--- dtor.orig/drivers/char/i8k.c
+++ dtor/drivers/char/i8k.c
@@ -20,7 +20,7 @@
#include <linux/types.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
-#include <linux/apm_bios.h>
+#include <linux/dmi.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -52,18 +52,7 @@
#define I8K_TEMPERATURE_BUG 1
-#define DELL_SIGNATURE "Dell Computer"
-
-static char *supported_models[] = {
- "Inspiron",
- "Latitude",
- NULL
-};
-
-static char system_vendor[48] = "?";
-static char product_name[48] = "?";
-static char bios_version[4] = "?";
-static char serial_number[16] = "?";
+static char bios_version[4];
MODULE_AUTHOR("Massimo Dal Zotto (dz@debian.org)");
MODULE_DESCRIPTION("Driver for accessing SMM BIOS on Dell laptops");
@@ -73,6 +62,10 @@ static int force;
module_param(force, bool, 0);
MODULE_PARM_DESC(force, "Force loading without checking for supported models");
+static int ignore_dmi;
+module_param(ignore_dmi, bool, 0);
+MODULE_PARM_DESC(ignore_dmi, "Continue probing hardware even if DMI data does not match");
+
static int restricted;
module_param(restricted, bool, 0);
MODULE_PARM_DESC(restricted, "Allow fan control if SYS_ADMIN capability set");
@@ -99,11 +92,10 @@ typedef struct {
unsigned int edi __attribute__ ((packed));
} SMMRegisters;
-typedef struct {
- u8 type;
- u8 length;
- u16 handle;
-} DMIHeader;
+static inline char *i8k_get_dmi_data(int field)
+{
+ return dmi_get_system_info(field) ? : "N/A";
+}
/*
* Call the System Management Mode BIOS. Code provided by Jonathan Buzzard.
@@ -163,15 +155,6 @@ static int i8k_get_bios_version(void)
}
/*
- * Read the machine id.
- */
-static int i8k_get_serial_number(unsigned char *buff)
-{
- strlcpy(buff, serial_number, sizeof(serial_number));
- return 0;
-}
-
-/*
* Read the Fn key status.
*/
static int i8k_get_fn_status(void)
@@ -328,7 +311,7 @@ static int i8k_get_dell_signature(void)
static int i8k_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
unsigned long arg)
{
- int val;
+ int val = 0;
int speed;
unsigned char buff[16];
int __user *argp = (int __user *)arg;
@@ -343,7 +326,7 @@ static int i8k_ioctl(struct inode *ip, s
case I8K_MACHINE_ID:
memset(buff, 0, 16);
- val = i8k_get_serial_number(buff);
+ strlcpy(buff, i8k_get_dmi_data(DMI_PRODUCT_SERIAL), sizeof(buff));
break;
case I8K_FN_STATUS:
@@ -451,10 +434,10 @@ static int i8k_get_info(char *buffer, ch
n = sprintf(buffer, "%s %s %s %d %d %d %d %d %d %d\n",
I8K_PROC_FMT,
bios_version,
- serial_number,
+ dmi_get_system_info(DMI_PRODUCT_SERIAL) ? : "N/A",
cpu_temp,
- left_fan,
- right_fan, left_speed, right_speed, ac_power, fn_key);
+ left_fan, right_fan, left_speed, right_speed,
+ ac_power, fn_key);
return n;
}
@@ -486,201 +469,23 @@ static ssize_t i8k_read(struct file *f,
return len;
}
-static char *__init string_trim(char *s, int size)
-{
- int len;
- char *p;
-
- if ((len = strlen(s)) > size) {
- len = size;
- }
-
- for (p = s + len - 1; len && (*p == ' '); len--, p--) {
- *p = '\0';
- }
-
- return s;
-}
-
-/* DMI code, stolen from arch/i386/kernel/dmi_scan.c */
-
-/*
- * |<-- dmi->length -->|
- * | |
- * |dmi header s=N | string1,\0, ..., stringN,\0, ..., \0
- * | |
- * +-----------------------+
- */
-static char *__init dmi_string(DMIHeader * dmi, u8 s)
-{
- u8 *p;
-
- if (!s) {
- return "";
- }
- s--;
-
- p = (u8 *) dmi + dmi->length;
- while (s > 0) {
- p += strlen(p);
- p++;
- s--;
- }
-
- return p;
-}
-
-static void __init dmi_decode(DMIHeader * dmi)
-{
- u8 *data = (u8 *) dmi;
- char *p;
-
-#ifdef I8K_DEBUG
- int i;
- printk("%08x ", (int)data);
- for (i = 0; i < data[1] && i < 64; i++) {
- printk("%02x ", data[i]);
- }
- printk("\n");
-#endif
-
- switch (dmi->type) {
- case 0: /* BIOS Information */
- p = dmi_string(dmi, data[5]);
- if (*p) {
- strlcpy(bios_version, p, sizeof(bios_version));
- string_trim(bios_version, sizeof(bios_version));
- }
- break;
- case 1: /* System Information */
- p = dmi_string(dmi, data[4]);
- if (*p) {
- strlcpy(system_vendor, p, sizeof(system_vendor));
- string_trim(system_vendor, sizeof(system_vendor));
- }
- p = dmi_string(dmi, data[5]);
- if (*p) {
- strlcpy(product_name, p, sizeof(product_name));
- string_trim(product_name, sizeof(product_name));
- }
- p = dmi_string(dmi, data[7]);
- if (*p) {
- strlcpy(serial_number, p, sizeof(serial_number));
- string_trim(serial_number, sizeof(serial_number));
- }
- break;
- }
-}
-
-static int __init dmi_table(u32 base, int len, int num,
- void (*fn) (DMIHeader *))
-{
- u8 *buf;
- u8 *data;
- DMIHeader *dmi;
- int i = 1;
-
- buf = ioremap(base, len);
- if (buf == NULL) {
- return -1;
- }
- data = buf;
-
- /*
- * Stop when we see al the items the table claimed to have
- * or we run off the end of the table (also happens)
- */
- while ((i < num) && ((data - buf) < len)) {
- dmi = (DMIHeader *) data;
- /*
- * Avoid misparsing crud if the length of the last
- * record is crap
- */
- if ((data - buf + dmi->length) >= len) {
- break;
- }
- fn(dmi);
- data += dmi->length;
- /*
- * Don't go off the end of the data if there is
- * stuff looking like string fill past the end
- */
- while (((data - buf) < len) && (*data || data[1])) {
- data++;
- }
- data += 2;
- i++;
- }
- iounmap(buf);
-
- return 0;
-}
-
-static int __init dmi_iterate(void (*decode) (DMIHeader *))
-{
- unsigned char buf[20];
- void __iomem *p = ioremap(0xe0000, 0x20000), *q;
-
- if (!p)
- return -1;
-
- for (q = p; q < p + 0x20000; q += 16) {
- memcpy_fromio(buf, q, 20);
- if (memcmp(buf, "_DMI_", 5) == 0) {
- u16 num = buf[13] << 8 | buf[12];
- u16 len = buf[7] << 8 | buf[6];
- u32 base = buf[11] << 24 | buf[10] << 16 | buf[9] << 8 | buf[8];
-#ifdef I8K_DEBUG
- printk(KERN_INFO "DMI %d.%d present.\n",
- buf[14] >> 4, buf[14] & 0x0F);
- printk(KERN_INFO "%d structures occupying %d bytes.\n",
- buf[13] << 8 | buf[12], buf[7] << 8 | buf[6]);
- printk(KERN_INFO "DMI table at 0x%08X.\n",
- buf[11] << 24 | buf[10] << 16 | buf[9] << 8 |
- buf[8]);
-#endif
- if (dmi_table(base, len, num, decode) == 0) {
- iounmap(p);
- return 0;
- }
- }
- }
- iounmap(p);
- return -1;
-}
-
-/* end of DMI code */
-
-/*
- * Get DMI information.
- */
-static int __init i8k_dmi_probe(void)
-{
- char **p;
-
- if (dmi_iterate(dmi_decode) != 0) {
- printk(KERN_INFO "i8k: unable to get DMI information\n");
- return -ENODEV;
- }
-
- if (strncmp(system_vendor, DELL_SIGNATURE, strlen(DELL_SIGNATURE)) != 0) {
- printk(KERN_INFO "i8k: not running on a Dell system\n");
- return -ENODEV;
- }
-
- for (p = supported_models;; p++) {
- if (!*p) {
- printk(KERN_INFO "i8k: unsupported model: %s\n",
- product_name);
- return -ENODEV;
- }
- if (strncmp(product_name, *p, strlen(*p)) == 0) {
- break;
- }
- }
-
- return 0;
-}
+static struct dmi_system_id __initdata i8k_dmi_table[] = {
+ {
+ .ident = "Dell Inspiron",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron"),
+ },
+ },
+ {
+ .ident = "Dell Latitude",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude"),
+ },
+ },
+ { }
+};
/*
* Probe for the presence of a supported laptop.
@@ -689,23 +494,30 @@ static int __init i8k_probe(void)
{
char buff[4];
int version;
- int smm_found = 0;
/*
* Get DMI information
*/
- if (i8k_dmi_probe() != 0) {
+ if (!dmi_check_system(i8k_dmi_table)) {
+ if (!ignore_dmi && !force)
+ return -ENODEV;
+
+ printk(KERN_INFO "i8k: not running on a supported Dell system.\n");
printk(KERN_INFO "i8k: vendor=%s, model=%s, version=%s\n",
- system_vendor, product_name, bios_version);
+ i8k_get_dmi_data(DMI_SYS_VENDOR),
+ i8k_get_dmi_data(DMI_PRODUCT_NAME),
+ i8k_get_dmi_data(DMI_BIOS_VERSION));
}
+ strlcpy(bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION), sizeof(bios_version));
+
/*
* Get SMM Dell signature
*/
if (i8k_get_dell_signature() != 0) {
- printk(KERN_INFO "i8k: unable to get SMM Dell signature\n");
- } else {
- smm_found = 1;
+ printk(KERN_ERR "i8k: unable to get SMM Dell signature\n");
+ if (!force)
+ return -ENODEV;
}
/*
@@ -713,9 +525,8 @@ static int __init i8k_probe(void)
*/
version = i8k_get_bios_version();
if (version <= 0) {
- printk(KERN_INFO "i8k: unable to get SMM BIOS version\n");
+ printk(KERN_WARNING "i8k: unable to get SMM BIOS version\n");
} else {
- smm_found = 1;
buff[0] = (version >> 16) & 0xff;
buff[1] = (version >> 8) & 0xff;
buff[2] = (version) & 0xff;
@@ -723,21 +534,15 @@ static int __init i8k_probe(void)
/*
* If DMI BIOS version is unknown use SMM BIOS version.
*/
- if (bios_version[0] == '?') {
- strcpy(bios_version, buff);
- }
+ if (!dmi_get_system_info(DMI_BIOS_VERSION))
+ strlcpy(bios_version, buff, sizeof(bios_version));
+
/*
* Check if the two versions match.
*/
- if (strncmp(buff, bios_version, sizeof(bios_version)) != 0) {
- printk(KERN_INFO
- "i8k: BIOS version mismatch: %s != %s\n", buff,
- bios_version);
- }
- }
-
- if (!smm_found && !force) {
- return -ENODEV;
+ if (strncmp(buff, bios_version, sizeof(bios_version)) != 0)
+ printk(KERN_WARNING "i8k: BIOS version mismatch: %s != %s\n",
+ buff, bios_version);
}
return 0;
@@ -751,9 +556,8 @@ int __init i8k_init(void)
struct proc_dir_entry *proc_i8k;
/* Are we running on an supported laptop? */
- if (i8k_probe() != 0) {
+ if (i8k_probe())
return -ENODEV;
- }
/* Register the proc entry */
proc_i8k = create_proc_info_entry("i8k", 0, NULL, i8k_get_info);
Index: dtor/Documentation/kernel-parameters.txt
===================================================================
--- dtor.orig/Documentation/kernel-parameters.txt
+++ dtor/Documentation/kernel-parameters.txt
@@ -548,6 +548,9 @@ running once the system is up.
i810= [HW,DRM]
+ i8k.ignore_dmi [HW] Continue probing hardware even if DMI data
+ indicates that the driver is running on unsupported
+ hardware.
i8k.force [HW] Activate i8k driver even if SMM BIOS signature
does not match list of supported models.
i8k.power_status
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2005-04-28 5:03 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2005-04-27 6:49 [PATCH 0/6] I8K and Toshiba legacy driver cleanup Dmitry Torokhov
2005-04-27 6:50 ` [PATCH 1/6] Toshiba " Dmitry Torokhov
2005-04-27 7:33 ` Andrew Morton
2005-04-27 13:42 ` Dmitry Torokhov
2005-04-28 4:58 ` Dmitry Torokhov
2005-04-27 6:52 ` [PATCH 2/6] I8K: pass through lindent Dmitry Torokhov
2005-04-27 6:52 ` [PATCH 3/6] I8K: use standard DMI interface Dmitry Torokhov
2005-04-28 5:02 ` Dmitry Torokhov
2005-04-27 6:53 ` [PATCH 4/6] I8K: convert to seqfile Dmitry Torokhov
2005-04-27 6:54 ` [PATCH 5/6] I8K: initialization code cleanup; formatting Dmitry Torokhov
2005-04-27 6:55 ` [PATCH 6/6] I8K: add new BIOS signatures Dmitry Torokhov
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