[PATCH 00/32] pata_parport-bpck6: rework bpck6 protocol driver

[PATCH 00/32] pata_parport-bpck6: rework bpck6 protocol driver

[Ondrej Zary]

This patch series simplifies bpck6 code, removing ppc6lnx.c file to match
the simplicity of other protocol drivers. It also converts the direct
port I/O access to paraport access functions. This conversion revealed that
there's no 8-bit and 16-bit EPP support in parport_pc so patch 11 implements
that.

Tested with Backpack CD-RW 222011 and CD-RW 19350.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 452 +++++++++++++++++++++++++++--------
 drivers/ata/pata_parport/ppc6lnx.c | 726 ---------------------------------------------------------
 drivers/parport/parport_pc.c       |  20 +-
 include/uapi/linux/parport.h       |   3 +
 4 files changed, 370 insertions(+), 831 deletions(-)

[PATCH 01/32] pata_parport-bpck6: remove useless defines

[Ondrej Zary]

Almost all the ATAPI_ defines are unused. Remove them and use
ATA_REG_DATA instead of ATAPI_DATA.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c | 21 ++-------------------
 1 file changed, 2 insertions(+), 19 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 964bc688e280..842e8116b649 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -23,23 +23,6 @@
 
 #define PPCSTRUCT(pi) ((Interface *)(pi->private))
 
-/****************************************************************/
-/*
- ATAPI CDROM DRIVE REGISTERS
-*/
-#define ATAPI_DATA       0      /* data port                  */
-#define ATAPI_ERROR      1      /* error register (read)      */
-#define ATAPI_FEATURES   1      /* feature register (write)   */
-#define ATAPI_INT_REASON 2      /* interrupt reason register  */
-#define ATAPI_COUNT_LOW  4      /* byte count register (low)  */
-#define ATAPI_COUNT_HIGH 5      /* byte count register (high) */
-#define ATAPI_DRIVE_SEL  6      /* drive select register      */
-#define ATAPI_STATUS     7      /* status port (read)         */
-#define ATAPI_COMMAND    7      /* command port (write)       */
-#define ATAPI_ALT_STATUS 0x0e /* alternate status reg (read) */
-#define ATAPI_DEVICE_CONTROL 0x0e /* device control (write)   */
-/****************************************************************/
-
 static int bpck6_read_regr(struct pi_adapter *pi, int cont, int reg)
 {
 	unsigned int out;
@@ -64,12 +47,12 @@ static void bpck6_write_regr(struct pi_adapter *pi, int cont, int reg, int val)
 
 static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 {
-	ppc6_wr_port16_blk(PPCSTRUCT(pi),ATAPI_DATA,buf,(u32)len>>1); 
+	ppc6_wr_port16_blk(PPCSTRUCT(pi), ATA_REG_DATA, buf, (u32)len>>1);
 }
 
 static void bpck6_read_block(struct pi_adapter *pi, char *buf, int len)
 {
-	ppc6_rd_port16_blk(PPCSTRUCT(pi),ATAPI_DATA,buf,(u32)len>>1);
+	ppc6_rd_port16_blk(PPCSTRUCT(pi), ATA_REG_DATA, buf, (u32)len>>1);
 }
 
 static void bpck6_connect(struct pi_adapter *pi)
-- 
Ondrej Zary

Re: [PATCH 01/32] pata_parport-bpck6: remove useless defines

[Sergei Shtylyov]

Hello!

  (Sending via my Gmail account, as the OMP SMTP server rejects mails...) 

On 3/8/23 1:45 AM, Ondrej Zary wrote:

> Almost all the ATAPI_ defines are unused. Remove them and use
> ATA_REG_DATA instead of ATAPI_DATA.
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>

Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>

[...]

MBR, Sergey

[PATCH 02/32] pata_parport-bpck6: remove useless range check from read/write_regr

[Ondrej Zary]

bpck6_read_regr() and bpck6_write_regr() check values of cont and reg
but there's no point in doing that. They can only be called with
a fixed set of values. Remove the checks.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 842e8116b649..4d6edb9c1245 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -25,24 +25,12 @@
 
 static int bpck6_read_regr(struct pi_adapter *pi, int cont, int reg)
 {
-	unsigned int out;
-
-	/* check for bad settings */
-	if (reg<0 || reg>7 || cont<0 || cont>2)
-	{
-		return(-1);
-	}
-	out=ppc6_rd_port(PPCSTRUCT(pi),cont?reg|8:reg);
-	return(out);
+	return ppc6_rd_port(PPCSTRUCT(pi), cont?reg|8:reg);
 }
 
 static void bpck6_write_regr(struct pi_adapter *pi, int cont, int reg, int val)
 {
-	/* check for bad settings */
-	if (reg>=0 && reg<=7 && cont>=0 && cont<=1)
-	{
-		ppc6_wr_port(PPCSTRUCT(pi),cont?reg|8:reg,(u8)val);
-	}
+	ppc6_wr_port(PPCSTRUCT(pi), cont?reg|8:reg, val);
 }
 
 static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
-- 
Ondrej Zary

Re: [PATCH 02/32] pata_parport-bpck6: remove useless range check from read/write_regr

[Sergey Shtylyov]

On 3/8/23 1:45 AM, Ondrej Zary wrote:

> bpck6_read_regr() and bpck6_write_regr() check values of cont and reg
> but there's no point in doing that. They can only be called with
> a fixed set of values. Remove the checks.
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>


Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>

[...]

MBR, Sergey

[PATCH 03/32] pata_parport-bpck6: don't cast pi->pardev to struct pardevice *

[Ondrej Zary]

pi->pardev is struct pardevice *, no need to cast it to the same type.
Also clean up the return mess.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c | 24 ++++++------------------
 1 file changed, 6 insertions(+), 18 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 4d6edb9c1245..fa1f7d4fe3cb 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -74,30 +74,18 @@ static void bpck6_disconnect(struct pi_adapter *pi)
 static int bpck6_test_port(struct pi_adapter *pi)   /* check for 8-bit port */
 {
 	dev_dbg(&pi->dev, "PARPORT indicates modes=%x for lp=0x%lx\n",
-		((struct pardevice *)(pi->pardev))->port->modes,
-		((struct pardevice *)(pi->pardev))->port->base);
+		pi->pardev->port->modes, pi->pardev->port->base);
 
 	/*copy over duplicate stuff.. initialize state info*/
 	PPCSTRUCT(pi)->ppc_id=pi->unit;
 	PPCSTRUCT(pi)->lpt_addr=pi->port;
 
-	/* look at the parport device to see if what modes we can use */
-	if(((struct pardevice *)(pi->pardev))->port->modes & 
-		(PARPORT_MODE_EPP)
-          )
-	{
-		return 5; /* Can do EPP*/
-	}
-	else if(((struct pardevice *)(pi->pardev))->port->modes & 
-			(PARPORT_MODE_TRISTATE)
-               )
-	{
+	/* look at the parport device to see what modes we can use */
+	if (pi->pardev->port->modes & PARPORT_MODE_EPP)
+		return 5; /* Can do EPP */
+	if (pi->pardev->port->modes & PARPORT_MODE_TRISTATE)
 		return 2;
-	}
-	else /*Just flat SPP*/
-	{
-		return 1;
-	}
+	return 1; /* Just flat SPP */
 }
 
 static int bpck6_probe_unit(struct pi_adapter *pi)
-- 
Ondrej Zary

Re: [PATCH 03/32] pata_parport-bpck6: don't cast pi->pardev to struct pardevice *

[Sergey Shtylyov]

On 3/8/23 1:45 AM, Ondrej Zary wrote:

> pi->pardev is struct pardevice *, no need to cast it to the same type.
> Also clean up the return mess.
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>

Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>

[...]

MBR, Sergey

[PATCH 04/32] pata_parport-bpck6: pass around struct pi_adapter *

[Ondrej Zary]

Remove Interface typedef, pass around struct pi_adapter * down to all
functions instead. Remove PPCSTRUCT define.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   |  43 ++++-----
 drivers/ata/pata_parport/ppc6lnx.c | 139 +++++++++++++++--------------
 2 files changed, 96 insertions(+), 86 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index fa1f7d4fe3cb..bc128a2c444e 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -18,67 +18,67 @@
 #include <linux/types.h>
 #include <asm/io.h>
 #include <linux/parport.h>
-#include "ppc6lnx.c"
 #include "pata_parport.h"
-
-#define PPCSTRUCT(pi) ((Interface *)(pi->private))
+#include "ppc6lnx.c"
 
 static int bpck6_read_regr(struct pi_adapter *pi, int cont, int reg)
 {
-	return ppc6_rd_port(PPCSTRUCT(pi), cont?reg|8:reg);
+	return ppc6_rd_port(pi, cont?reg|8:reg);
 }
 
 static void bpck6_write_regr(struct pi_adapter *pi, int cont, int reg, int val)
 {
-	ppc6_wr_port(PPCSTRUCT(pi), cont?reg|8:reg, val);
+	ppc6_wr_port(pi, cont?reg|8:reg, val);
 }
 
 static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 {
-	ppc6_wr_port16_blk(PPCSTRUCT(pi), ATA_REG_DATA, buf, (u32)len>>1);
+	ppc6_wr_port16_blk(pi, ATA_REG_DATA, buf, (u32)len>>1);
 }
 
 static void bpck6_read_block(struct pi_adapter *pi, char *buf, int len)
 {
-	ppc6_rd_port16_blk(PPCSTRUCT(pi), ATA_REG_DATA, buf, (u32)len>>1);
+	ppc6_rd_port16_blk(pi, ATA_REG_DATA, buf, (u32)len>>1);
 }
 
 static void bpck6_connect(struct pi_adapter *pi)
 {
+	struct ppc_storage *ppc = (void *)(pi->private);
 	dev_dbg(&pi->dev, "connect\n");
 
 	if(pi->mode >=2)
   	{
-		PPCSTRUCT(pi)->mode=4+pi->mode-2;	
+		ppc->mode = 4+pi->mode-2;
 	}
 	else if(pi->mode==1)
 	{
-		PPCSTRUCT(pi)->mode=3;	
+		ppc->mode = 3;
 	}
 	else
 	{
-		PPCSTRUCT(pi)->mode=1;		
+		ppc->mode = 1;
 	}
 
-	ppc6_open(PPCSTRUCT(pi));  
-	ppc6_wr_extout(PPCSTRUCT(pi),0x3);
+	ppc6_open(pi);
+	ppc6_wr_extout(pi, 0x3);
 }
 
 static void bpck6_disconnect(struct pi_adapter *pi)
 {
 	dev_dbg(&pi->dev, "disconnect\n");
-	ppc6_wr_extout(PPCSTRUCT(pi),0x0);
-	ppc6_close(PPCSTRUCT(pi));
+	ppc6_wr_extout(pi, 0x0);
+	ppc6_close(pi);
 }
 
 static int bpck6_test_port(struct pi_adapter *pi)   /* check for 8-bit port */
 {
+	struct ppc_storage *ppc = (void *)(pi->private);
 	dev_dbg(&pi->dev, "PARPORT indicates modes=%x for lp=0x%lx\n",
 		pi->pardev->port->modes, pi->pardev->port->base);
 
 	/*copy over duplicate stuff.. initialize state info*/
-	PPCSTRUCT(pi)->ppc_id=pi->unit;
-	PPCSTRUCT(pi)->lpt_addr=pi->port;
+	ppc->ppc_id = pi->unit;
+	ppc->lpt_addr = pi->port;
 
 	/* look at the parport device to see what modes we can use */
 	if (pi->pardev->port->modes & PARPORT_MODE_EPP)
@@ -90,23 +90,24 @@ static int bpck6_test_port(struct pi_adapter *pi)   /* check for 8-bit port */
 
 static int bpck6_probe_unit(struct pi_adapter *pi)
 {
+	struct ppc_storage *ppc = (void *)(pi->private);
 	int out;
 
 	dev_dbg(&pi->dev, "PROBE UNIT %x on port:%x\n", pi->unit, pi->port);
 
 	/*SET PPC UNIT NUMBER*/
-	PPCSTRUCT(pi)->ppc_id=pi->unit;
+	ppc->ppc_id = pi->unit;
 
 	/*LOWER DOWN TO UNIDIRECTIONAL*/
-	PPCSTRUCT(pi)->mode=1;		
+	ppc->mode = 1;
 
-	out=ppc6_open(PPCSTRUCT(pi));
+	out = ppc6_open(pi);
 
 	dev_dbg(&pi->dev, "ppc_open returned %2x\n", out);
 
   	if(out)
  	{
-		ppc6_close(PPCSTRUCT(pi));
+		ppc6_close(pi);
 		dev_dbg(&pi->dev, "leaving probe\n");
                return(1);
 	}
@@ -128,7 +129,7 @@ static void bpck6_log_adapter(struct pi_adapter *pi)
 
 static int bpck6_init_proto(struct pi_adapter *pi)
 {
-	Interface *p = kzalloc(sizeof(Interface), GFP_KERNEL);
+	struct ppc_storage *p = kzalloc(sizeof(struct ppc_storage), GFP_KERNEL);
 
 	if (p) {
 		pi->private = (unsigned long)p;
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 5e5521d3b1dd..f12bb019fc61 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -64,7 +64,7 @@
 
 //***************************************************************************
 
-typedef struct ppc_storage {
+struct ppc_storage {
 	u16	lpt_addr;				// LPT base address
 	u8	ppc_id;
 	u8	mode;						// operating mode
@@ -79,7 +79,7 @@ typedef struct ppc_storage {
 	u8	org_data;				// original LPT data port contents
 	u8	org_ctrl;				// original LPT control port contents
 	u8	cur_ctrl;				// current control port contents
-} Interface;
+};
 
 //***************************************************************************
 
@@ -101,26 +101,27 @@ typedef struct ppc_storage {
 
 //***************************************************************************
 
-static int ppc6_select(Interface *ppc);
-static void ppc6_deselect(Interface *ppc);
-static void ppc6_send_cmd(Interface *ppc, u8 cmd);
-static void ppc6_wr_data_byte(Interface *ppc, u8 data);
-static u8 ppc6_rd_data_byte(Interface *ppc);
-static u8 ppc6_rd_port(Interface *ppc, u8 port);
-static void ppc6_wr_port(Interface *ppc, u8 port, u8 data);
-static void ppc6_rd_data_blk(Interface *ppc, u8 *data, long count);
-static void ppc6_wait_for_fifo(Interface *ppc);
-static void ppc6_wr_data_blk(Interface *ppc, u8 *data, long count);
-static void ppc6_rd_port16_blk(Interface *ppc, u8 port, u8 *data, long length);
-static void ppc6_wr_port16_blk(Interface *ppc, u8 port, u8 *data, long length);
-static void ppc6_wr_extout(Interface *ppc, u8 regdata);
-static int ppc6_open(Interface *ppc);
-static void ppc6_close(Interface *ppc);
+static int ppc6_select(struct pi_adapter *pi);
+static void ppc6_deselect(struct pi_adapter *pi);
+static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd);
+static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
+static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
+static u8 ppc6_rd_port(struct pi_adapter *pi, u8 port);
+static void ppc6_wr_port(struct pi_adapter *pi, u8 port, u8 data);
+static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count);
+static void ppc6_wait_for_fifo(struct pi_adapter *pi);
+static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count);
+static void ppc6_rd_port16_blk(struct pi_adapter *pi, u8 port, u8 *data, long length);
+static void ppc6_wr_port16_blk(struct pi_adapter *pi, u8 port, u8 *data, long length);
+static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata);
+static int ppc6_open(struct pi_adapter *pi);
+static void ppc6_close(struct pi_adapter *pi);
 
 //***************************************************************************
 
-static int ppc6_select(Interface *ppc)
+static int ppc6_select(struct pi_adapter *pi)
 {
+	struct ppc_storage *ppc = (void *)(pi->private);
 	u8 i, j, k;
 
 	i = inb(ppc->lpt_addr + 1);
@@ -205,8 +206,9 @@ static int ppc6_select(Interface *ppc)
 
 //***************************************************************************
 
-static void ppc6_deselect(Interface *ppc)
+static void ppc6_deselect(struct pi_adapter *pi)
 {
+	struct ppc_storage *ppc = (void *)(pi->private);
 	if (ppc->mode & 4)	// EPP
 		ppc->cur_ctrl |= port_init;
 	else								// PPC/ECP
@@ -223,8 +225,9 @@ static void ppc6_deselect(Interface *ppc)
 
 //***************************************************************************
 
-static void ppc6_send_cmd(Interface *ppc, u8 cmd)
+static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 {
+	struct ppc_storage *ppc = (void *)(pi->private);
 	switch(ppc->mode)
 	{
 		case PPCMODE_UNI_SW :
@@ -254,8 +257,9 @@ static void ppc6_send_cmd(Interface *ppc, u8 cmd)
 
 //***************************************************************************
 
-static void ppc6_wr_data_byte(Interface *ppc, u8 data)
+static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 {
+	struct ppc_storage *ppc = (void *)(pi->private);
 	switch(ppc->mode)
 	{
 		case PPCMODE_UNI_SW :
@@ -285,8 +289,9 @@ static void ppc6_wr_data_byte(Interface *ppc, u8 data)
 
 //***************************************************************************
 
-static u8 ppc6_rd_data_byte(Interface *ppc)
+static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 {
+	struct ppc_storage *ppc = (void *)(pi->private);
 	u8 data = 0;
 
 	switch(ppc->mode)
@@ -358,26 +363,27 @@ static u8 ppc6_rd_data_byte(Interface *ppc)
 
 //***************************************************************************
 
-static u8 ppc6_rd_port(Interface *ppc, u8 port)
+static u8 ppc6_rd_port(struct pi_adapter *pi, u8 port)
 {
-	ppc6_send_cmd(ppc,(u8)(port | ACCESS_PORT | ACCESS_READ));
+	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_READ);
 
-	return(ppc6_rd_data_byte(ppc));
+	return ppc6_rd_data_byte(pi);
 }
 
 //***************************************************************************
 
-static void ppc6_wr_port(Interface *ppc, u8 port, u8 data)
+static void ppc6_wr_port(struct pi_adapter *pi, u8 port, u8 data)
 {
-	ppc6_send_cmd(ppc,(u8)(port | ACCESS_PORT | ACCESS_WRITE));
+	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_WRITE);
 
-	ppc6_wr_data_byte(ppc, data);
+	ppc6_wr_data_byte(pi, data);
 }
 
 //***************************************************************************
 
-static void ppc6_rd_data_blk(Interface *ppc, u8 *data, long count)
+static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 {
+	struct ppc_storage *ppc = (void *)(pi->private);
 	switch(ppc->mode)
 	{
 		case PPCMODE_UNI_SW :
@@ -512,8 +518,9 @@ static void ppc6_rd_data_blk(Interface *ppc, u8 *data, long count)
 
 //***************************************************************************
 
-static void ppc6_wait_for_fifo(Interface *ppc)
+static void ppc6_wait_for_fifo(struct pi_adapter *pi)
 {
+	struct ppc_storage *ppc = (void *)(pi->private);
 	int i;
 
 	if (ppc->ppc_flags & fifo_wait)
@@ -525,8 +532,9 @@ static void ppc6_wait_for_fifo(Interface *ppc)
 
 //***************************************************************************
 
-static void ppc6_wr_data_blk(Interface *ppc, u8 *data, long count)
+static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 {
+	struct ppc_storage *ppc = (void *)(pi->private);
 	switch(ppc->mode)
 	{
 		case PPCMODE_UNI_SW :
@@ -549,7 +557,7 @@ static void ppc6_wr_data_blk(Interface *ppc, u8 *data, long count)
 		{
 			u8 this, last;
 
-			ppc6_send_cmd(ppc,(CMD_PREFIX_SET | PREFIX_FASTWR));
+			ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_FASTWR);
 
 			ppc->cur_ctrl |= port_stb;
 
@@ -582,7 +590,7 @@ static void ppc6_wr_data_blk(Interface *ppc, u8 *data, long count)
 
 			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
 
-			ppc6_send_cmd(ppc,(CMD_PREFIX_RESET | PREFIX_FASTWR));
+			ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_FASTWR);
 
 			break;
 		}
@@ -595,7 +603,7 @@ static void ppc6_wr_data_blk(Interface *ppc, u8 *data, long count)
 				count--;
 			}
 
-			ppc6_wait_for_fifo(ppc);
+			ppc6_wait_for_fifo(pi);
 
 			break;
 		}
@@ -615,7 +623,7 @@ static void ppc6_wr_data_blk(Interface *ppc, u8 *data, long count)
 				count--;
 			}
 
-			ppc6_wait_for_fifo(ppc);
+			ppc6_wait_for_fifo(pi);
 
 			break;
 		}
@@ -635,7 +643,7 @@ static void ppc6_wr_data_blk(Interface *ppc, u8 *data, long count)
 				count--;
 			}
 
-			ppc6_wait_for_fifo(ppc);
+			ppc6_wait_for_fifo(pi);
 
 			break;
 		}
@@ -644,72 +652,73 @@ static void ppc6_wr_data_blk(Interface *ppc, u8 *data, long count)
 
 //***************************************************************************
 
-static void ppc6_rd_port16_blk(Interface *ppc, u8 port, u8 *data, long length)
+static void ppc6_rd_port16_blk(struct pi_adapter *pi, u8 port, u8 *data, long length)
 {
 	length = length << 1;
 
-	ppc6_send_cmd(ppc, (REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE));
-	ppc6_wr_data_byte(ppc,(u8)length);
-	ppc6_wr_data_byte(ppc,(u8)(length >> 8));
-	ppc6_wr_data_byte(ppc,0);
+	ppc6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
+	ppc6_wr_data_byte(pi, (u8)length);
+	ppc6_wr_data_byte(pi, (u8)(length >> 8));
+	ppc6_wr_data_byte(pi, 0);
 
-	ppc6_send_cmd(ppc, (CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK));
+	ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
 
-	ppc6_send_cmd(ppc, (u8)(port | ACCESS_PORT | ACCESS_READ));
+	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_READ);
 
-	ppc6_rd_data_blk(ppc, data, length);
+	ppc6_rd_data_blk(pi, data, length);
 
-	ppc6_send_cmd(ppc, (CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK));
+	ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
 }
 
 //***************************************************************************
 
-static void ppc6_wr_port16_blk(Interface *ppc, u8 port, u8 *data, long length)
+static void ppc6_wr_port16_blk(struct pi_adapter *pi, u8 port, u8 *data, long length)
 {
 	length = length << 1;
 
-	ppc6_send_cmd(ppc, (REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE));
-	ppc6_wr_data_byte(ppc,(u8)length);
-	ppc6_wr_data_byte(ppc,(u8)(length >> 8));
-	ppc6_wr_data_byte(ppc,0);
+	ppc6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
+	ppc6_wr_data_byte(pi, (u8)length);
+	ppc6_wr_data_byte(pi, (u8)(length >> 8));
+	ppc6_wr_data_byte(pi, 0);
 
-	ppc6_send_cmd(ppc, (CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK));
+	ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
 
-	ppc6_send_cmd(ppc, (u8)(port | ACCESS_PORT | ACCESS_WRITE));
+	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_WRITE);
 
-	ppc6_wr_data_blk(ppc, data, length);
+	ppc6_wr_data_blk(pi, data, length);
 
-	ppc6_send_cmd(ppc, (CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK));
+	ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
 }
 
 //***************************************************************************
 
-static void ppc6_wr_extout(Interface *ppc, u8 regdata)
+static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata)
 {
-	ppc6_send_cmd(ppc,(REG_VERSION | ACCESS_REG | ACCESS_WRITE));
+	ppc6_send_cmd(pi, REG_VERSION | ACCESS_REG | ACCESS_WRITE);
 
-	ppc6_wr_data_byte(ppc, (u8)((regdata & 0x03) << 6));
+	ppc6_wr_data_byte(pi, (u8)((regdata & 0x03) << 6));
 }
 
 //***************************************************************************
 
-static int ppc6_open(Interface *ppc)
+static int ppc6_open(struct pi_adapter *pi)
 {
+	struct ppc_storage *ppc = (void *)(pi->private);
 	int ret;
 
-	ret = ppc6_select(ppc);
+	ret = ppc6_select(pi);
 
 	if (ret == 0)
 		return(ret);
 
 	ppc->ppc_flags &= ~fifo_wait;
 
-	ppc6_send_cmd(ppc, (ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE));
-	ppc6_wr_data_byte(ppc, RAMSIZE_128K);
+	ppc6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
+	ppc6_wr_data_byte(pi, RAMSIZE_128K);
 
-	ppc6_send_cmd(ppc, (ACCESS_REG | ACCESS_READ | REG_VERSION));
+	ppc6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
 
-	if ((ppc6_rd_data_byte(ppc) & 0x3F) == 0x0C)
+	if ((ppc6_rd_data_byte(pi) & 0x3F) == 0x0C)
 		ppc->ppc_flags |= fifo_wait;
 
 	return(ret);
@@ -717,9 +726,9 @@ static int ppc6_open(Interface *ppc)
 
 //***************************************************************************
 
-static void ppc6_close(Interface *ppc)
+static void ppc6_close(struct pi_adapter *pi)
 {
-	ppc6_deselect(ppc);
+	ppc6_deselect(pi);
 }
 
 //***************************************************************************
-- 
Ondrej Zary

Re: [PATCH 04/32] pata_parport-bpck6: pass around struct pi_adapter *

[Sergey Shtylyov]

On 3/8/23 1:45 AM, Ondrej Zary wrote:

> Remove Interface typedef, pass around struct pi_adapter * down to all
> functions instead. Remove PPCSTRUCT define.
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>

Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>

   I had some nit tho -- see below...

[...]

> diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
> index fa1f7d4fe3cb..bc128a2c444e 100644
> --- a/drivers/ata/pata_parport/bpck6.c
> +++ b/drivers/ata/pata_parport/bpck6.c
[...]
>  static void bpck6_connect(struct pi_adapter *pi)
>  {
> +	struct ppc_storage *ppc = (void *)(pi->private);

   Parens around pi->private are unnecessary here and elsewhere...

[...]
> diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
> index 5e5521d3b1dd..f12bb019fc61 100644
> --- a/drivers/ata/pata_parport/ppc6lnx.c
> +++ b/drivers/ata/pata_parport/ppc6lnx.c
[...]
> @@ -101,26 +101,27 @@ typedef struct ppc_storage {
[...]
>  //***************************************************************************
>  
> -static int ppc6_select(Interface *ppc)
> +static int ppc6_select(struct pi_adapter *pi)
>  {
> +	struct ppc_storage *ppc = (void *)(pi->private);

   Parens around pi->private are unnecessary here and elsewhere...

[...]

MBR, Sergey

Re: [PATCH 04/32] pata_parport-bpck6: pass around struct pi_adapter *

[Ondrej Zary]

On Wednesday 08 March 2023 21:33:59 Sergey Shtylyov wrote:
> On 3/8/23 1:45 AM, Ondrej Zary wrote:
> 
> > Remove Interface typedef, pass around struct pi_adapter * down to all
> > functions instead. Remove PPCSTRUCT define.
> > 
> > Signed-off-by: Ondrej Zary <linux@zary.sk>
> 
> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
> 
>    I had some nit tho -- see below...
> 
> [...]
> 
> > diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
> > index fa1f7d4fe3cb..bc128a2c444e 100644
> > --- a/drivers/ata/pata_parport/bpck6.c
> > +++ b/drivers/ata/pata_parport/bpck6.c
> [...]
> >  static void bpck6_connect(struct pi_adapter *pi)
> >  {
> > +	struct ppc_storage *ppc = (void *)(pi->private);
> 
>    Parens around pi->private are unnecessary here and elsewhere...
> 
> [...]
> > diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
> > index 5e5521d3b1dd..f12bb019fc61 100644
> > --- a/drivers/ata/pata_parport/ppc6lnx.c
> > +++ b/drivers/ata/pata_parport/ppc6lnx.c
> [...]
> > @@ -101,26 +101,27 @@ typedef struct ppc_storage {
> [...]
> >  //***************************************************************************
> >  
> > -static int ppc6_select(Interface *ppc)
> > +static int ppc6_select(struct pi_adapter *pi)
> >  {
> > +	struct ppc_storage *ppc = (void *)(pi->private);
> 
>    Parens around pi->private are unnecessary here and elsewhere...

Yes, missed that. But it's "fixed" in patch 9 by removing this code :)

-- 
Ondrej Zary

Re: [PATCH 04/32] pata_parport-bpck6: pass around struct pi_adapter *

[Sergey Shtylyov]

On 3/9/23 11:58 PM, Ondrej Zary wrote:
[...]

>>> Remove Interface typedef, pass around struct pi_adapter * down to all
>>> functions instead. Remove PPCSTRUCT define.
>>>
>>> Signed-off-by: Ondrej Zary <linux@zary.sk>
>>
>> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
>>
>>    I had some nit tho -- see below...
>>
>> [...]
>>
>>> diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
>>> index fa1f7d4fe3cb..bc128a2c444e 100644
>>> --- a/drivers/ata/pata_parport/bpck6.c
>>> +++ b/drivers/ata/pata_parport/bpck6.c
>> [...]
>>>  static void bpck6_connect(struct pi_adapter *pi)
>>>  {
>>> +	struct ppc_storage *ppc = (void *)(pi->private);
>>
>>    Parens around pi->private are unnecessary here and elsewhere...
>>
>> [...]
>>> diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
>>> index 5e5521d3b1dd..f12bb019fc61 100644
>>> --- a/drivers/ata/pata_parport/ppc6lnx.c
>>> +++ b/drivers/ata/pata_parport/ppc6lnx.c
>> [...]
>>> @@ -101,26 +101,27 @@ typedef struct ppc_storage {
>> [...]
>>>  //***************************************************************************
>>>  
>>> -static int ppc6_select(Interface *ppc)
>>> +static int ppc6_select(struct pi_adapter *pi)
>>>  {
>>> +	struct ppc_storage *ppc = (void *)(pi->private);
>>
>>    Parens around pi->private are unnecessary here and elsewhere...
> 
> Yes, missed that. But it's "fixed" in patch 9 by removing this code :)

   Yeah, saw that later... Nevermind then. :-)

MBR, Sergey

Re: [PATCH 04/32] pata_parport-bpck6: pass around struct pi_adapter *

[Sergey Shtylyov]

On 3/8/23 1:45 AM, Ondrej Zary wrote:

> Remove Interface typedef, pass around struct pi_adapter * down to all
> functions instead. Remove PPCSTRUCT define.
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>

Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>

   I had some nit tho -- see below...

[...]

> diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
> index fa1f7d4fe3cb..bc128a2c444e 100644
> --- a/drivers/ata/pata_parport/bpck6.c
> +++ b/drivers/ata/pata_parport/bpck6.c
[...]
>  static void bpck6_connect(struct pi_adapter *pi)
>  {
> +	struct ppc_storage *ppc = (void *)(pi->private);

   Parens around pi->private are unnecessary here and elsewhere...

[...]
> diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
> index 5e5521d3b1dd..f12bb019fc61 100644
> --- a/drivers/ata/pata_parport/ppc6lnx.c
> +++ b/drivers/ata/pata_parport/ppc6lnx.c
[...]
> @@ -101,26 +101,27 @@ typedef struct ppc_storage {
[...]
>  //***************************************************************************
>  
> -static int ppc6_select(Interface *ppc)
> +static int ppc6_select(struct pi_adapter *pi)
>  {
> +	struct ppc_storage *ppc = (void *)(pi->private);

   Parens around pi->private are unnecessary here and elsewhere...

[...]

MBR, Sergey

[PATCH 05/32] pata_parport-bpck6: remove lpt_addr from struct ppc_storage

[Ondrej Zary]

lpt_addr duplicates pi->port. Remove it.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   |   1 -
 drivers/ata/pata_parport/ppc6lnx.c | 153 ++++++++++++++---------------
 2 files changed, 76 insertions(+), 78 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index bc128a2c444e..50d313fc529e 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -78,7 +78,6 @@ static int bpck6_test_port(struct pi_adapter *pi)   /* check for 8-bit port */
 
 	/*copy over duplicate stuff.. initialize state info*/
 	ppc->ppc_id = pi->unit;
-	ppc->lpt_addr = pi->port;
 
 	/* look at the parport device to see what modes we can use */
 	if (pi->pardev->port->modes & PARPORT_MODE_EPP)
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index f12bb019fc61..c00e561cc833 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -65,7 +65,6 @@
 //***************************************************************************
 
 struct ppc_storage {
-	u16	lpt_addr;				// LPT base address
 	u8	ppc_id;
 	u8	mode;						// operating mode
 					// 0 = PPC Uni SW
@@ -124,65 +123,65 @@ static int ppc6_select(struct pi_adapter *pi)
 	struct ppc_storage *ppc = (void *)(pi->private);
 	u8 i, j, k;
 
-	i = inb(ppc->lpt_addr + 1);
+	i = inb(pi->port + 1);
 
 	if (i & 1)
-		outb(i, ppc->lpt_addr + 1);
+		outb(i, pi->port + 1);
 
-	ppc->org_data = inb(ppc->lpt_addr);
+	ppc->org_data = inb(pi->port);
 
-	ppc->org_ctrl = inb(ppc->lpt_addr + 2) & 0x5F; // readback ctrl
+	ppc->org_ctrl = inb(pi->port + 2) & 0x5F; // readback ctrl
 
 	ppc->cur_ctrl = ppc->org_ctrl;
 
 	ppc->cur_ctrl |= port_sel;
 
-	outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+	outb(ppc->cur_ctrl, pi->port + 2);
 
 	if (ppc->org_data == 'b')
-		outb('x', ppc->lpt_addr);
+		outb('x', pi->port);
 
-	outb('b', ppc->lpt_addr);
-	outb('p', ppc->lpt_addr);
-	outb(ppc->ppc_id, ppc->lpt_addr);
-	outb(~ppc->ppc_id,ppc->lpt_addr);
+	outb('b', pi->port);
+	outb('p', pi->port);
+	outb(ppc->ppc_id, pi->port);
+	outb(~ppc->ppc_id, pi->port);
 
 	ppc->cur_ctrl &= ~port_sel;
 
-	outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+	outb(ppc->cur_ctrl, pi->port + 2);
 
 	ppc->cur_ctrl = (ppc->cur_ctrl & port_int) | port_init;
 
-	outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+	outb(ppc->cur_ctrl, pi->port + 2);
 
 	i = ppc->mode & 0x0C;
 
 	if (i == 0)
 		i = (ppc->mode & 2) | 1;
 
-	outb(i, ppc->lpt_addr);
+	outb(i, pi->port);
 
 	ppc->cur_ctrl |= port_sel;
 
-	outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+	outb(ppc->cur_ctrl, pi->port + 2);
 
 	// DELAY
 
 	ppc->cur_ctrl |= port_afd;
 
-	outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+	outb(ppc->cur_ctrl, pi->port + 2);
 
 	j = ((i & 0x08) << 4) | ((i & 0x07) << 3);
 
-	k = inb(ppc->lpt_addr + 1) & 0xB8;
+	k = inb(pi->port + 1) & 0xB8;
 
 	if (j == k)
 	{
 		ppc->cur_ctrl &= ~port_afd;
 
-		outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+		outb(ppc->cur_ctrl, pi->port + 2);
 
-		k = (inb(ppc->lpt_addr + 1) & 0xB8) ^ 0xB8;
+		k = (inb(pi->port + 1) & 0xB8) ^ 0xB8;
 
 		if (j == k)
 		{
@@ -191,15 +190,15 @@ static int ppc6_select(struct pi_adapter *pi)
 			else				// PPC/ECP
 				ppc->cur_ctrl &= ~port_sel;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			return(1);
 		}
 	}
 
-	outb(ppc->org_ctrl, ppc->lpt_addr + 2);
+	outb(ppc->org_ctrl, pi->port + 2);
 
-	outb(ppc->org_data, ppc->lpt_addr);
+	outb(ppc->org_data, pi->port);
 
 	return(0); // FAIL
 }
@@ -214,13 +213,13 @@ static void ppc6_deselect(struct pi_adapter *pi)
 	else								// PPC/ECP
 		ppc->cur_ctrl |= port_sel;
 
-	outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+	outb(ppc->cur_ctrl, pi->port + 2);
 
-	outb(ppc->org_data, ppc->lpt_addr);
+	outb(ppc->org_data, pi->port);
 
-	outb((ppc->org_ctrl | port_sel), ppc->lpt_addr + 2);
+	outb((ppc->org_ctrl | port_sel), pi->port + 2);
 
-	outb(ppc->org_ctrl, ppc->lpt_addr + 2);
+	outb(ppc->org_ctrl, pi->port + 2);
 }
 
 //***************************************************************************
@@ -235,11 +234,11 @@ static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 		case PPCMODE_BI_SW :
 		case PPCMODE_BI_FW :
 		{
-			outb(cmd, ppc->lpt_addr);
+			outb(cmd, pi->port);
 
 			ppc->cur_ctrl ^= cmd_stb;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			break;
 		}
@@ -248,7 +247,7 @@ static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 		case PPCMODE_EPP_WORD :
 		case PPCMODE_EPP_DWORD :
 		{
-			outb(cmd, ppc->lpt_addr + 3);
+			outb(cmd, pi->port + 3);
 
 			break;
 		}
@@ -267,11 +266,11 @@ static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 		case PPCMODE_BI_SW :
 		case PPCMODE_BI_FW :
 		{
-			outb(data, ppc->lpt_addr);
+			outb(data, pi->port);
 
 			ppc->cur_ctrl ^= data_stb;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			break;
 		}
@@ -280,7 +279,7 @@ static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 		case PPCMODE_EPP_WORD :
 		case PPCMODE_EPP_DWORD :
 		{
-			outb(data, ppc->lpt_addr + 4);
+			outb(data, pi->port + 4);
 
 			break;
 		}
@@ -301,21 +300,21 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 		{
 			ppc->cur_ctrl = (ppc->cur_ctrl & ~port_stb) ^ data_stb;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			// DELAY
 
-			data = inb(ppc->lpt_addr + 1);
+			data = inb(pi->port + 1);
 
 			data = ((data & 0x80) >> 1) | ((data & 0x38) >> 3);
 
 			ppc->cur_ctrl |= port_stb;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			// DELAY
 
-			data |= inb(ppc->lpt_addr + 1) & 0xB8;
+			data |= inb(pi->port + 1) & 0xB8;
 
 			break;
 		}
@@ -325,21 +324,21 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 		{
 			ppc->cur_ctrl |= port_dir;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			ppc->cur_ctrl = (ppc->cur_ctrl | port_stb) ^ data_stb;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
-			data = inb(ppc->lpt_addr);
+			data = inb(pi->port);
 
 			ppc->cur_ctrl &= ~port_stb;
 
-			outb(ppc->cur_ctrl,ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			ppc->cur_ctrl &= ~port_dir;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			break;
 		}
@@ -348,11 +347,11 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 		case PPCMODE_EPP_WORD :
 		case PPCMODE_EPP_DWORD :
 		{
-			outb((ppc->cur_ctrl | port_dir),ppc->lpt_addr + 2);
+			outb((ppc->cur_ctrl | port_dir), pi->port + 2);
 
-			data = inb(ppc->lpt_addr + 4);
+			data = inb(pi->port + 4);
 
-			outb(ppc->cur_ctrl,ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			break;
 		}
@@ -395,21 +394,21 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 				ppc->cur_ctrl = (ppc->cur_ctrl & ~port_stb) ^ data_stb;
 
-				outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+				outb(ppc->cur_ctrl, pi->port + 2);
 
 				// DELAY
 
-				d = inb(ppc->lpt_addr + 1);
+				d = inb(pi->port + 1);
 
 				d = ((d & 0x80) >> 1) | ((d & 0x38) >> 3);
 
 				ppc->cur_ctrl |= port_stb;
 
-				outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+				outb(ppc->cur_ctrl, pi->port + 2);
 
 				// DELAY
 
-				d |= inb(ppc->lpt_addr + 1) & 0xB8;
+				d |= inb(pi->port + 1) & 0xB8;
 
 				*data++ = d;
 				count--;
@@ -423,7 +422,7 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 		{
 			ppc->cur_ctrl |= port_dir;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			ppc->cur_ctrl |= port_stb;
 
@@ -431,84 +430,84 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 			{
 				ppc->cur_ctrl ^= data_stb;
 
-				outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+				outb(ppc->cur_ctrl, pi->port + 2);
 
-				*data++ = inb(ppc->lpt_addr);
+				*data++ = inb(pi->port);
 				count--;
 			}
 
 			ppc->cur_ctrl &= ~port_stb;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			ppc->cur_ctrl &= ~port_dir;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			break;
 		}
 
 		case PPCMODE_EPP_BYTE :
 		{
-			outb((ppc->cur_ctrl | port_dir), ppc->lpt_addr + 2);
+			outb((ppc->cur_ctrl | port_dir), pi->port + 2);
 
 			// DELAY
 
 			while(count)
 			{
-				*data++ = inb(ppc->lpt_addr + 4);
+				*data++ = inb(pi->port + 4);
 				count--;
 			}
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			break;
 		}
 
 		case PPCMODE_EPP_WORD :
 		{
-			outb((ppc->cur_ctrl | port_dir), ppc->lpt_addr + 2);
+			outb((ppc->cur_ctrl | port_dir), pi->port + 2);
 
 			// DELAY
 
 			while(count > 1)
 			{
-				*((u16 *)data) = inw(ppc->lpt_addr + 4);
+				*((u16 *)data) = inw(pi->port + 4);
 				data  += 2;
 				count -= 2;
 			}
 
 			while(count)
 			{
-				*data++ = inb(ppc->lpt_addr + 4);
+				*data++ = inb(pi->port + 4);
 				count--;
 			}
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			break;
 		}
 
 		case PPCMODE_EPP_DWORD :
 		{
-			outb((ppc->cur_ctrl | port_dir),ppc->lpt_addr + 2);
+			outb((ppc->cur_ctrl | port_dir), pi->port + 2);
 
 			// DELAY
 
 			while(count > 3)
 			{
-				*((u32 *)data) = inl(ppc->lpt_addr + 4);
+				*((u32 *)data) = inl(pi->port + 4);
 				data  += 4;
 				count -= 4;
 			}
 
 			while(count)
 			{
-				*data++ = inb(ppc->lpt_addr + 4);
+				*data++ = inb(pi->port + 4);
 				count--;
 			}
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			break;
 		}
@@ -526,7 +525,7 @@ static void ppc6_wait_for_fifo(struct pi_adapter *pi)
 	if (ppc->ppc_flags & fifo_wait)
 	{
 		for(i=0; i<20; i++)
-			inb(ppc->lpt_addr + 1);
+			inb(pi->port + 1);
 	}
 }
 
@@ -542,11 +541,11 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 		{
 			while(count--)
 			{
-				outb(*data++, ppc->lpt_addr);
+				outb(*data++, pi->port);
 
 				ppc->cur_ctrl ^= data_stb;
 
-				outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+				outb(ppc->cur_ctrl, pi->port + 2);
 			}
 
 			break;
@@ -561,11 +560,11 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 			ppc->cur_ctrl |= port_stb;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			last = *data;
 
-			outb(last, ppc->lpt_addr);
+			outb(last, pi->port);
 
 			while(count)
 			{
@@ -576,11 +575,11 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 				{
 					ppc->cur_ctrl ^= data_stb;
 
-					outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+					outb(ppc->cur_ctrl, pi->port + 2);
 				}
 				else
 				{
-					outb(this, ppc->lpt_addr);
+					outb(this, pi->port);
 
 					last = this;
 				}
@@ -588,7 +587,7 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 			ppc->cur_ctrl &= ~port_stb;
 
-			outb(ppc->cur_ctrl, ppc->lpt_addr + 2);
+			outb(ppc->cur_ctrl, pi->port + 2);
 
 			ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_FASTWR);
 
@@ -599,7 +598,7 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 		{
 			while(count)
 			{
-				outb(*data++,ppc->lpt_addr + 4);
+				outb(*data++, pi->port + 4);
 				count--;
 			}
 
@@ -612,14 +611,14 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 		{
 			while(count > 1)
 			{
-				outw(*((u16 *)data),ppc->lpt_addr + 4);
+				outw(*((u16 *)data), pi->port + 4);
 				data  += 2;
 				count -= 2;
 			}
 
 			while(count)
 			{
-				outb(*data++,ppc->lpt_addr + 4);
+				outb(*data++, pi->port + 4);
 				count--;
 			}
 
@@ -632,14 +631,14 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 		{
 			while(count > 3)
 			{
-				outl(*((u32 *)data),ppc->lpt_addr + 4);
+				outl(*((u32 *)data), pi->port + 4);
 				data  += 4;
 				count -= 4;
 			}
 
 			while(count)
 			{
-				outb(*data++,ppc->lpt_addr + 4);
+				outb(*data++, pi->port + 4);
 				count--;
 			}
 
-- 
Ondrej Zary

Re: [PATCH 05/32] pata_parport-bpck6: remove lpt_addr from struct ppc_storage

[Sergey Shtylyov]

On 3/8/23 1:46 AM, Ondrej Zary wrote:

> lpt_addr duplicates pi->port. Remove it.
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>

Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>

[...]

MBR, Sergey

[PATCH 06/32] pata_parport-bpck6: remove ppc_id from struct ppc_storage

[Ondrej Zary]

ppc_id duplicates pi->unit. Remove it.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 7 -------
 drivers/ata/pata_parport/ppc6lnx.c | 5 ++---
 2 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 50d313fc529e..176bf456c698 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -72,13 +72,9 @@ static void bpck6_disconnect(struct pi_adapter *pi)
 
 static int bpck6_test_port(struct pi_adapter *pi)   /* check for 8-bit port */
 {
-	struct ppc_storage *ppc = (void *)(pi->private);
 	dev_dbg(&pi->dev, "PARPORT indicates modes=%x for lp=0x%lx\n",
 		pi->pardev->port->modes, pi->pardev->port->base);
 
-	/*copy over duplicate stuff.. initialize state info*/
-	ppc->ppc_id = pi->unit;
-
 	/* look at the parport device to see what modes we can use */
 	if (pi->pardev->port->modes & PARPORT_MODE_EPP)
 		return 5; /* Can do EPP */
@@ -94,9 +90,6 @@ static int bpck6_probe_unit(struct pi_adapter *pi)
 
 	dev_dbg(&pi->dev, "PROBE UNIT %x on port:%x\n", pi->unit, pi->port);
 
-	/*SET PPC UNIT NUMBER*/
-	ppc->ppc_id = pi->unit;
-
 	/*LOWER DOWN TO UNIDIRECTIONAL*/
 	ppc->mode = 1;
 
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index c00e561cc833..dd9f3040f9a7 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -65,7 +65,6 @@
 //***************************************************************************
 
 struct ppc_storage {
-	u8	ppc_id;
 	u8	mode;						// operating mode
 					// 0 = PPC Uni SW
 					// 1 = PPC Uni FW
@@ -143,8 +142,8 @@ static int ppc6_select(struct pi_adapter *pi)
 
 	outb('b', pi->port);
 	outb('p', pi->port);
-	outb(ppc->ppc_id, pi->port);
-	outb(~ppc->ppc_id, pi->port);
+	outb(pi->unit, pi->port);
+	outb(~pi->unit, pi->port);
 
 	ppc->cur_ctrl &= ~port_sel;
 
-- 
Ondrej Zary

Re: [PATCH 06/32] pata_parport-bpck6: remove ppc_id from struct ppc_storage

[Sergey Shtylyov]

On 3/8/23 1:46 AM, Ondrej Zary wrote:

> ppc_id duplicates pi->unit. Remove it.
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>

Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>

[...]

MBR, Sergey

[PATCH 07/32] pata_parport-bpck6: remove org_* from struct ppc_storage

[Ondrej Zary]

org_data duplicates saved_r0 and org_ctrl duplicates saved_r2 in
pi->unit. Remove them.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/ppc6lnx.c | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index dd9f3040f9a7..7ea8e8a31aeb 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -74,8 +74,6 @@ struct ppc_storage {
 					// 5 = EPP Word
 					// 6 = EPP Dword
 	u8	ppc_flags;
-	u8	org_data;				// original LPT data port contents
-	u8	org_ctrl;				// original LPT control port contents
 	u8	cur_ctrl;				// current control port contents
 };
 
@@ -127,17 +125,17 @@ static int ppc6_select(struct pi_adapter *pi)
 	if (i & 1)
 		outb(i, pi->port + 1);
 
-	ppc->org_data = inb(pi->port);
+	pi->saved_r0 = inb(pi->port);
 
-	ppc->org_ctrl = inb(pi->port + 2) & 0x5F; // readback ctrl
+	pi->saved_r2 = inb(pi->port + 2) & 0x5F; // readback ctrl
 
-	ppc->cur_ctrl = ppc->org_ctrl;
+	ppc->cur_ctrl = pi->saved_r2;
 
 	ppc->cur_ctrl |= port_sel;
 
 	outb(ppc->cur_ctrl, pi->port + 2);
 
-	if (ppc->org_data == 'b')
+	if (pi->saved_r0 == 'b')
 		outb('x', pi->port);
 
 	outb('b', pi->port);
@@ -195,9 +193,9 @@ static int ppc6_select(struct pi_adapter *pi)
 		}
 	}
 
-	outb(ppc->org_ctrl, pi->port + 2);
+	outb(pi->saved_r2, pi->port + 2);
 
-	outb(ppc->org_data, pi->port);
+	outb(pi->saved_r0, pi->port);
 
 	return(0); // FAIL
 }
@@ -214,11 +212,11 @@ static void ppc6_deselect(struct pi_adapter *pi)
 
 	outb(ppc->cur_ctrl, pi->port + 2);
 
-	outb(ppc->org_data, pi->port);
+	outb(pi->saved_r0, pi->port);
 
-	outb((ppc->org_ctrl | port_sel), pi->port + 2);
+	outb((pi->saved_r2 | port_sel), pi->port + 2);
 
-	outb(ppc->org_ctrl, pi->port + 2);
+	outb(pi->saved_r2, pi->port + 2);
 }
 
 //***************************************************************************
-- 
Ondrej Zary

Re: [PATCH 07/32] pata_parport-bpck6: remove org_* from struct ppc_storage

[Sergey Shtylyov]

On 3/8/23 1:46 AM, Ondrej Zary wrote:

> org_data duplicates saved_r0 and org_ctrl duplicates saved_r2 in
> pi->unit. Remove them.
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>

Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>

[...]

MBR, Sergey

[PATCH 08/32] pata_parport-bpck6: remove mode from struct ppc_storage

[Ondrej Zary]

introduce mode_map[] that maps bpck6 modes to ppc6 modes and use it to
replace mode in ppc_storage

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 22 +++++-----------------
 drivers/ata/pata_parport/ppc6lnx.c | 27 +++++++++++----------------
 2 files changed, 16 insertions(+), 33 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 176bf456c698..fe97d1dee51c 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -43,22 +43,8 @@ static void bpck6_read_block(struct pi_adapter *pi, char *buf, int len)
 
 static void bpck6_connect(struct pi_adapter *pi)
 {
-	struct ppc_storage *ppc = (void *)(pi->private);
 	dev_dbg(&pi->dev, "connect\n");
 
-	if(pi->mode >=2)
-  	{
-		ppc->mode = 4+pi->mode-2;
-	}
-	else if(pi->mode==1)
-	{
-		ppc->mode = 3;
-	}
-	else
-	{
-		ppc->mode = 1;
-	}
-
 	ppc6_open(pi);
 	ppc6_wr_extout(pi, 0x3);
 }
@@ -85,13 +71,13 @@ static int bpck6_test_port(struct pi_adapter *pi)   /* check for 8-bit port */
 
 static int bpck6_probe_unit(struct pi_adapter *pi)
 {
-	struct ppc_storage *ppc = (void *)(pi->private);
-	int out;
+	int out, saved_mode;
 
 	dev_dbg(&pi->dev, "PROBE UNIT %x on port:%x\n", pi->unit, pi->port);
 
+	saved_mode = pi->mode;
 	/*LOWER DOWN TO UNIDIRECTIONAL*/
-	ppc->mode = 1;
+	pi->mode = 0;
 
 	out = ppc6_open(pi);
 
@@ -101,11 +87,13 @@ static int bpck6_probe_unit(struct pi_adapter *pi)
  	{
 		ppc6_close(pi);
 		dev_dbg(&pi->dev, "leaving probe\n");
+		pi->mode = saved_mode;
                return(1);
 	}
   	else
   	{
 		dev_dbg(&pi->dev, "Failed open\n");
+		pi->mode = saved_mode;
     		return(0);
   	}
 }
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 7ea8e8a31aeb..75f9748d8de5 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -65,14 +65,6 @@
 //***************************************************************************
 
 struct ppc_storage {
-	u8	mode;						// operating mode
-					// 0 = PPC Uni SW
-					// 1 = PPC Uni FW
-					// 2 = PPC Bi SW
-					// 3 = PPC Bi FW
-					// 4 = EPP Byte
-					// 5 = EPP Word
-					// 6 = EPP Dword
 	u8	ppc_flags;
 	u8	cur_ctrl;				// current control port contents
 };
@@ -115,6 +107,9 @@ static void ppc6_close(struct pi_adapter *pi);
 
 //***************************************************************************
 
+int mode_map[] = { PPCMODE_UNI_FW, PPCMODE_BI_FW, PPCMODE_EPP_BYTE,
+		   PPCMODE_EPP_WORD, PPCMODE_EPP_DWORD };
+
 static int ppc6_select(struct pi_adapter *pi)
 {
 	struct ppc_storage *ppc = (void *)(pi->private);
@@ -151,10 +146,10 @@ static int ppc6_select(struct pi_adapter *pi)
 
 	outb(ppc->cur_ctrl, pi->port + 2);
 
-	i = ppc->mode & 0x0C;
+	i = mode_map[pi->mode] & 0x0C;
 
 	if (i == 0)
-		i = (ppc->mode & 2) | 1;
+		i = (mode_map[pi->mode] & 2) | 1;
 
 	outb(i, pi->port);
 
@@ -205,7 +200,7 @@ static int ppc6_select(struct pi_adapter *pi)
 static void ppc6_deselect(struct pi_adapter *pi)
 {
 	struct ppc_storage *ppc = (void *)(pi->private);
-	if (ppc->mode & 4)	// EPP
+	if (mode_map[pi->mode] & 4)	// EPP
 		ppc->cur_ctrl |= port_init;
 	else								// PPC/ECP
 		ppc->cur_ctrl |= port_sel;
@@ -224,7 +219,7 @@ static void ppc6_deselect(struct pi_adapter *pi)
 static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 {
 	struct ppc_storage *ppc = (void *)(pi->private);
-	switch(ppc->mode)
+	switch (mode_map[pi->mode])
 	{
 		case PPCMODE_UNI_SW :
 		case PPCMODE_UNI_FW :
@@ -256,7 +251,7 @@ static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 {
 	struct ppc_storage *ppc = (void *)(pi->private);
-	switch(ppc->mode)
+	switch (mode_map[pi->mode])
 	{
 		case PPCMODE_UNI_SW :
 		case PPCMODE_UNI_FW :
@@ -290,7 +285,7 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 	struct ppc_storage *ppc = (void *)(pi->private);
 	u8 data = 0;
 
-	switch(ppc->mode)
+	switch (mode_map[pi->mode])
 	{
 		case PPCMODE_UNI_SW :
 		case PPCMODE_UNI_FW :
@@ -380,7 +375,7 @@ static void ppc6_wr_port(struct pi_adapter *pi, u8 port, u8 data)
 static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 {
 	struct ppc_storage *ppc = (void *)(pi->private);
-	switch(ppc->mode)
+	switch (mode_map[pi->mode])
 	{
 		case PPCMODE_UNI_SW :
 		case PPCMODE_UNI_FW :
@@ -531,7 +526,7 @@ static void ppc6_wait_for_fifo(struct pi_adapter *pi)
 static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 {
 	struct ppc_storage *ppc = (void *)(pi->private);
-	switch(ppc->mode)
+	switch (mode_map[pi->mode])
 	{
 		case PPCMODE_UNI_SW :
 		case PPCMODE_BI_SW :
-- 
Ondrej Zary

Re: [PATCH 08/32] pata_parport-bpck6: remove mode from struct ppc_storage

[Sergey Shtylyov]

On 3/8/23 1:46 AM, Ondrej Zary wrote:

> introduce mode_map[] that maps bpck6 modes to ppc6 modes and use it to
> replace mode in ppc_storage
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>

Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>

[...]
 
MBR, Sergey

[PATCH 09/32] pata_parport-bpck6: remove struct ppc_storage

[Ondrej Zary]

Store the remaining two variables (cur_ctrl and ppc_flags) in struct
ppc_storage directly in pi->private and remove struct ppc_storage.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   |  21 ----
 drivers/ata/pata_parport/ppc6lnx.c | 149 +++++++++++++----------------
 2 files changed, 69 insertions(+), 101 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index fe97d1dee51c..dc0f71cc305e 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -14,7 +14,6 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
-#include <linux/slab.h>
 #include <linux/types.h>
 #include <asm/io.h>
 #include <linux/parport.h>
@@ -107,24 +106,6 @@ static void bpck6_log_adapter(struct pi_adapter *pi)
 		pi->unit, pi->port, pi->mode, mode_string[pi->mode], pi->delay);
 }
 
-static int bpck6_init_proto(struct pi_adapter *pi)
-{
-	struct ppc_storage *p = kzalloc(sizeof(struct ppc_storage), GFP_KERNEL);
-
-	if (p) {
-		pi->private = (unsigned long)p;
-		return 0;
-	}
-
-	dev_err(&pi->dev, "ERROR COULDN'T ALLOCATE MEMORY\n");
-	return -1;
-}
-
-static void bpck6_release_proto(struct pi_adapter *pi)
-{
-	kfree((void *)(pi->private)); 
-}
-
 static struct pi_protocol bpck6 = {
 	.owner		= THIS_MODULE,
 	.name		= "bpck6",
@@ -140,8 +121,6 @@ static struct pi_protocol bpck6 = {
 	.test_port	= bpck6_test_port,
 	.probe_unit	= bpck6_probe_unit,
 	.log_adapter	= bpck6_log_adapter,
-	.init_proto	= bpck6_init_proto,
-	.release_proto	= bpck6_release_proto,
 };
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 75f9748d8de5..ee8cee6bae7c 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -64,10 +64,8 @@
 
 //***************************************************************************
 
-struct ppc_storage {
-	u8	ppc_flags;
-	u8	cur_ctrl;				// current control port contents
-};
+#define CUR_CTRL	(((u8 *)&pi->private)[0])
+#define PPC_FLAGS	(((u8 *)&pi->private)[1])
 
 //***************************************************************************
 
@@ -112,7 +110,6 @@ int mode_map[] = { PPCMODE_UNI_FW, PPCMODE_BI_FW, PPCMODE_EPP_BYTE,
 
 static int ppc6_select(struct pi_adapter *pi)
 {
-	struct ppc_storage *ppc = (void *)(pi->private);
 	u8 i, j, k;
 
 	i = inb(pi->port + 1);
@@ -124,11 +121,11 @@ static int ppc6_select(struct pi_adapter *pi)
 
 	pi->saved_r2 = inb(pi->port + 2) & 0x5F; // readback ctrl
 
-	ppc->cur_ctrl = pi->saved_r2;
+	CUR_CTRL = pi->saved_r2;
 
-	ppc->cur_ctrl |= port_sel;
+	CUR_CTRL |= port_sel;
 
-	outb(ppc->cur_ctrl, pi->port + 2);
+	outb(CUR_CTRL, pi->port + 2);
 
 	if (pi->saved_r0 == 'b')
 		outb('x', pi->port);
@@ -138,13 +135,13 @@ static int ppc6_select(struct pi_adapter *pi)
 	outb(pi->unit, pi->port);
 	outb(~pi->unit, pi->port);
 
-	ppc->cur_ctrl &= ~port_sel;
+	CUR_CTRL &= ~port_sel;
 
-	outb(ppc->cur_ctrl, pi->port + 2);
+	outb(CUR_CTRL, pi->port + 2);
 
-	ppc->cur_ctrl = (ppc->cur_ctrl & port_int) | port_init;
+	CUR_CTRL = (CUR_CTRL & port_int) | port_init;
 
-	outb(ppc->cur_ctrl, pi->port + 2);
+	outb(CUR_CTRL, pi->port + 2);
 
 	i = mode_map[pi->mode] & 0x0C;
 
@@ -153,15 +150,15 @@ static int ppc6_select(struct pi_adapter *pi)
 
 	outb(i, pi->port);
 
-	ppc->cur_ctrl |= port_sel;
+	CUR_CTRL |= port_sel;
 
-	outb(ppc->cur_ctrl, pi->port + 2);
+	outb(CUR_CTRL, pi->port + 2);
 
 	// DELAY
 
-	ppc->cur_ctrl |= port_afd;
+	CUR_CTRL |= port_afd;
 
-	outb(ppc->cur_ctrl, pi->port + 2);
+	outb(CUR_CTRL, pi->port + 2);
 
 	j = ((i & 0x08) << 4) | ((i & 0x07) << 3);
 
@@ -169,20 +166,20 @@ static int ppc6_select(struct pi_adapter *pi)
 
 	if (j == k)
 	{
-		ppc->cur_ctrl &= ~port_afd;
+		CUR_CTRL &= ~port_afd;
 
-		outb(ppc->cur_ctrl, pi->port + 2);
+		outb(CUR_CTRL, pi->port + 2);
 
 		k = (inb(pi->port + 1) & 0xB8) ^ 0xB8;
 
 		if (j == k)
 		{
 			if (i & 4)	// EPP
-				ppc->cur_ctrl &= ~(port_sel | port_init);
+				CUR_CTRL &= ~(port_sel | port_init);
 			else				// PPC/ECP
-				ppc->cur_ctrl &= ~port_sel;
+				CUR_CTRL &= ~port_sel;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			return(1);
 		}
@@ -199,13 +196,12 @@ static int ppc6_select(struct pi_adapter *pi)
 
 static void ppc6_deselect(struct pi_adapter *pi)
 {
-	struct ppc_storage *ppc = (void *)(pi->private);
 	if (mode_map[pi->mode] & 4)	// EPP
-		ppc->cur_ctrl |= port_init;
+		CUR_CTRL |= port_init;
 	else								// PPC/ECP
-		ppc->cur_ctrl |= port_sel;
+		CUR_CTRL |= port_sel;
 
-	outb(ppc->cur_ctrl, pi->port + 2);
+	outb(CUR_CTRL, pi->port + 2);
 
 	outb(pi->saved_r0, pi->port);
 
@@ -218,7 +214,6 @@ static void ppc6_deselect(struct pi_adapter *pi)
 
 static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 {
-	struct ppc_storage *ppc = (void *)(pi->private);
 	switch (mode_map[pi->mode])
 	{
 		case PPCMODE_UNI_SW :
@@ -228,9 +223,9 @@ static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 		{
 			outb(cmd, pi->port);
 
-			ppc->cur_ctrl ^= cmd_stb;
+			CUR_CTRL ^= cmd_stb;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			break;
 		}
@@ -250,7 +245,6 @@ static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 {
-	struct ppc_storage *ppc = (void *)(pi->private);
 	switch (mode_map[pi->mode])
 	{
 		case PPCMODE_UNI_SW :
@@ -260,9 +254,9 @@ static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 		{
 			outb(data, pi->port);
 
-			ppc->cur_ctrl ^= data_stb;
+			CUR_CTRL ^= data_stb;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			break;
 		}
@@ -282,7 +276,6 @@ static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 
 static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 {
-	struct ppc_storage *ppc = (void *)(pi->private);
 	u8 data = 0;
 
 	switch (mode_map[pi->mode])
@@ -290,9 +283,9 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 		case PPCMODE_UNI_SW :
 		case PPCMODE_UNI_FW :
 		{
-			ppc->cur_ctrl = (ppc->cur_ctrl & ~port_stb) ^ data_stb;
+			CUR_CTRL = (CUR_CTRL & ~port_stb) ^ data_stb;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			// DELAY
 
@@ -300,9 +293,9 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 
 			data = ((data & 0x80) >> 1) | ((data & 0x38) >> 3);
 
-			ppc->cur_ctrl |= port_stb;
+			CUR_CTRL |= port_stb;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			// DELAY
 
@@ -314,23 +307,23 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 		case PPCMODE_BI_SW :
 		case PPCMODE_BI_FW :
 		{
-			ppc->cur_ctrl |= port_dir;
+			CUR_CTRL |= port_dir;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
-			ppc->cur_ctrl = (ppc->cur_ctrl | port_stb) ^ data_stb;
+			CUR_CTRL = (CUR_CTRL | port_stb) ^ data_stb;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			data = inb(pi->port);
 
-			ppc->cur_ctrl &= ~port_stb;
+			CUR_CTRL &= ~port_stb;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
-			ppc->cur_ctrl &= ~port_dir;
+			CUR_CTRL &= ~port_dir;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			break;
 		}
@@ -339,11 +332,11 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 		case PPCMODE_EPP_WORD :
 		case PPCMODE_EPP_DWORD :
 		{
-			outb((ppc->cur_ctrl | port_dir), pi->port + 2);
+			outb((CUR_CTRL | port_dir), pi->port + 2);
 
 			data = inb(pi->port + 4);
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			break;
 		}
@@ -374,7 +367,6 @@ static void ppc6_wr_port(struct pi_adapter *pi, u8 port, u8 data)
 
 static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 {
-	struct ppc_storage *ppc = (void *)(pi->private);
 	switch (mode_map[pi->mode])
 	{
 		case PPCMODE_UNI_SW :
@@ -384,9 +376,9 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 			{
 				u8 d;
 
-				ppc->cur_ctrl = (ppc->cur_ctrl & ~port_stb) ^ data_stb;
+				CUR_CTRL = (CUR_CTRL & ~port_stb) ^ data_stb;
 
-				outb(ppc->cur_ctrl, pi->port + 2);
+				outb(CUR_CTRL, pi->port + 2);
 
 				// DELAY
 
@@ -394,9 +386,9 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 				d = ((d & 0x80) >> 1) | ((d & 0x38) >> 3);
 
-				ppc->cur_ctrl |= port_stb;
+				CUR_CTRL |= port_stb;
 
-				outb(ppc->cur_ctrl, pi->port + 2);
+				outb(CUR_CTRL, pi->port + 2);
 
 				// DELAY
 
@@ -412,36 +404,36 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 		case PPCMODE_BI_SW :
 		case PPCMODE_BI_FW :
 		{
-			ppc->cur_ctrl |= port_dir;
+			CUR_CTRL |= port_dir;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
-			ppc->cur_ctrl |= port_stb;
+			CUR_CTRL |= port_stb;
 
 			while(count)
 			{
-				ppc->cur_ctrl ^= data_stb;
+				CUR_CTRL ^= data_stb;
 
-				outb(ppc->cur_ctrl, pi->port + 2);
+				outb(CUR_CTRL, pi->port + 2);
 
 				*data++ = inb(pi->port);
 				count--;
 			}
 
-			ppc->cur_ctrl &= ~port_stb;
+			CUR_CTRL &= ~port_stb;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
-			ppc->cur_ctrl &= ~port_dir;
+			CUR_CTRL &= ~port_dir;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			break;
 		}
 
 		case PPCMODE_EPP_BYTE :
 		{
-			outb((ppc->cur_ctrl | port_dir), pi->port + 2);
+			outb((CUR_CTRL | port_dir), pi->port + 2);
 
 			// DELAY
 
@@ -451,14 +443,14 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 				count--;
 			}
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			break;
 		}
 
 		case PPCMODE_EPP_WORD :
 		{
-			outb((ppc->cur_ctrl | port_dir), pi->port + 2);
+			outb((CUR_CTRL | port_dir), pi->port + 2);
 
 			// DELAY
 
@@ -475,14 +467,14 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 				count--;
 			}
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			break;
 		}
 
 		case PPCMODE_EPP_DWORD :
 		{
-			outb((ppc->cur_ctrl | port_dir), pi->port + 2);
+			outb((CUR_CTRL | port_dir), pi->port + 2);
 
 			// DELAY
 
@@ -499,7 +491,7 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 				count--;
 			}
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			break;
 		}
@@ -511,10 +503,9 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 static void ppc6_wait_for_fifo(struct pi_adapter *pi)
 {
-	struct ppc_storage *ppc = (void *)(pi->private);
 	int i;
 
-	if (ppc->ppc_flags & fifo_wait)
+	if (PPC_FLAGS & fifo_wait)
 	{
 		for(i=0; i<20; i++)
 			inb(pi->port + 1);
@@ -525,7 +516,6 @@ static void ppc6_wait_for_fifo(struct pi_adapter *pi)
 
 static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 {
-	struct ppc_storage *ppc = (void *)(pi->private);
 	switch (mode_map[pi->mode])
 	{
 		case PPCMODE_UNI_SW :
@@ -535,9 +525,9 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 			{
 				outb(*data++, pi->port);
 
-				ppc->cur_ctrl ^= data_stb;
+				CUR_CTRL ^= data_stb;
 
-				outb(ppc->cur_ctrl, pi->port + 2);
+				outb(CUR_CTRL, pi->port + 2);
 			}
 
 			break;
@@ -550,9 +540,9 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 			ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_FASTWR);
 
-			ppc->cur_ctrl |= port_stb;
+			CUR_CTRL |= port_stb;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			last = *data;
 
@@ -565,9 +555,9 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 				if (this == last)
 				{
-					ppc->cur_ctrl ^= data_stb;
+					CUR_CTRL ^= data_stb;
 
-					outb(ppc->cur_ctrl, pi->port + 2);
+					outb(CUR_CTRL, pi->port + 2);
 				}
 				else
 				{
@@ -577,9 +567,9 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 				}
 			}
 
-			ppc->cur_ctrl &= ~port_stb;
+			CUR_CTRL &= ~port_stb;
 
-			outb(ppc->cur_ctrl, pi->port + 2);
+			outb(CUR_CTRL, pi->port + 2);
 
 			ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_FASTWR);
 
@@ -694,7 +684,6 @@ static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata)
 
 static int ppc6_open(struct pi_adapter *pi)
 {
-	struct ppc_storage *ppc = (void *)(pi->private);
 	int ret;
 
 	ret = ppc6_select(pi);
@@ -702,7 +691,7 @@ static int ppc6_open(struct pi_adapter *pi)
 	if (ret == 0)
 		return(ret);
 
-	ppc->ppc_flags &= ~fifo_wait;
+	PPC_FLAGS &= ~fifo_wait;
 
 	ppc6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
 	ppc6_wr_data_byte(pi, RAMSIZE_128K);
@@ -710,7 +699,7 @@ static int ppc6_open(struct pi_adapter *pi)
 	ppc6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
 
 	if ((ppc6_rd_data_byte(pi) & 0x3F) == 0x0C)
-		ppc->ppc_flags |= fifo_wait;
+		PPC_FLAGS |= fifo_wait;
 
 	return(ret);
 }
-- 
Ondrej Zary

Re: [PATCH 09/32] pata_parport-bpck6: remove struct ppc_storage

[Sergey Shtylyov]

On 3/8/23 1:46 AM, Ondrej Zary wrote:

> Store the remaining two variables (cur_ctrl and ppc_flags) in struct

   s/variables/fields/, maybe?

> ppc_storage directly in pi->private and remove struct ppc_storage.
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>
[...]

Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>

> diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
> index 75f9748d8de5..ee8cee6bae7c 100644
> --- a/drivers/ata/pata_parport/ppc6lnx.c
> +++ b/drivers/ata/pata_parport/ppc6lnx.c
> @@ -64,10 +64,8 @@
>  
>  //***************************************************************************
>  
> -struct ppc_storage {
> -	u8	ppc_flags;
> -	u8	cur_ctrl;				// current control port contents
> -};
> +#define CUR_CTRL	(((u8 *)&pi->private)[0])
> +#define PPC_FLAGS	(((u8 *)&pi->private)[1])

   Hm, that's a creative abuse of *unsigned long*... :-)

[...]

MBR, Sergey

[PATCH 10/32] pata_parport-bpck6: remove parallel port bit defines

[Ondrej Zary]

Remove port_stb, port_afd, cmd_stb, port_init, data_stb and port_sel
defines and use standard PARPORT_CONTROL_* instead.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/ppc6lnx.c | 59 ++++++++++++++----------------
 1 file changed, 27 insertions(+), 32 deletions(-)

diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index ee8cee6bae7c..09480a7fcaee 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -16,12 +16,6 @@
 //***************************************************************************
 
 
-#define port_stb					1
-#define port_afd					2
-#define cmd_stb						port_afd
-#define port_init					4
-#define data_stb					port_init
-#define port_sel					8
 #define port_int					16
 #define port_dir					0x20
 
@@ -123,7 +117,7 @@ static int ppc6_select(struct pi_adapter *pi)
 
 	CUR_CTRL = pi->saved_r2;
 
-	CUR_CTRL |= port_sel;
+	CUR_CTRL |= PARPORT_CONTROL_SELECT;
 
 	outb(CUR_CTRL, pi->port + 2);
 
@@ -135,11 +129,11 @@ static int ppc6_select(struct pi_adapter *pi)
 	outb(pi->unit, pi->port);
 	outb(~pi->unit, pi->port);
 
-	CUR_CTRL &= ~port_sel;
+	CUR_CTRL &= ~PARPORT_CONTROL_SELECT;
 
 	outb(CUR_CTRL, pi->port + 2);
 
-	CUR_CTRL = (CUR_CTRL & port_int) | port_init;
+	CUR_CTRL = (CUR_CTRL & port_int) | PARPORT_CONTROL_INIT;
 
 	outb(CUR_CTRL, pi->port + 2);
 
@@ -150,13 +144,13 @@ static int ppc6_select(struct pi_adapter *pi)
 
 	outb(i, pi->port);
 
-	CUR_CTRL |= port_sel;
+	CUR_CTRL |= PARPORT_CONTROL_SELECT;
 
 	outb(CUR_CTRL, pi->port + 2);
 
 	// DELAY
 
-	CUR_CTRL |= port_afd;
+	CUR_CTRL |= PARPORT_CONTROL_AUTOFD;
 
 	outb(CUR_CTRL, pi->port + 2);
 
@@ -166,7 +160,7 @@ static int ppc6_select(struct pi_adapter *pi)
 
 	if (j == k)
 	{
-		CUR_CTRL &= ~port_afd;
+		CUR_CTRL &= ~PARPORT_CONTROL_AUTOFD;
 
 		outb(CUR_CTRL, pi->port + 2);
 
@@ -175,9 +169,9 @@ static int ppc6_select(struct pi_adapter *pi)
 		if (j == k)
 		{
 			if (i & 4)	// EPP
-				CUR_CTRL &= ~(port_sel | port_init);
+				CUR_CTRL &= ~(PARPORT_CONTROL_SELECT | PARPORT_CONTROL_INIT);
 			else				// PPC/ECP
-				CUR_CTRL &= ~port_sel;
+				CUR_CTRL &= ~PARPORT_CONTROL_SELECT;
 
 			outb(CUR_CTRL, pi->port + 2);
 
@@ -197,15 +191,15 @@ static int ppc6_select(struct pi_adapter *pi)
 static void ppc6_deselect(struct pi_adapter *pi)
 {
 	if (mode_map[pi->mode] & 4)	// EPP
-		CUR_CTRL |= port_init;
+		CUR_CTRL |= PARPORT_CONTROL_INIT;
 	else								// PPC/ECP
-		CUR_CTRL |= port_sel;
+		CUR_CTRL |= PARPORT_CONTROL_SELECT;
 
 	outb(CUR_CTRL, pi->port + 2);
 
 	outb(pi->saved_r0, pi->port);
 
-	outb((pi->saved_r2 | port_sel), pi->port + 2);
+	outb((pi->saved_r2 | PARPORT_CONTROL_SELECT), pi->port + 2);
 
 	outb(pi->saved_r2, pi->port + 2);
 }
@@ -223,7 +217,7 @@ static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 		{
 			outb(cmd, pi->port);
 
-			CUR_CTRL ^= cmd_stb;
+			CUR_CTRL ^= PARPORT_CONTROL_AUTOFD;
 
 			outb(CUR_CTRL, pi->port + 2);
 
@@ -254,7 +248,7 @@ static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 		{
 			outb(data, pi->port);
 
-			CUR_CTRL ^= data_stb;
+			CUR_CTRL ^= PARPORT_CONTROL_INIT;
 
 			outb(CUR_CTRL, pi->port + 2);
 
@@ -283,7 +277,7 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 		case PPCMODE_UNI_SW :
 		case PPCMODE_UNI_FW :
 		{
-			CUR_CTRL = (CUR_CTRL & ~port_stb) ^ data_stb;
+			CUR_CTRL = (CUR_CTRL & ~PARPORT_CONTROL_STROBE) ^ PARPORT_CONTROL_INIT;
 
 			outb(CUR_CTRL, pi->port + 2);
 
@@ -293,7 +287,7 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 
 			data = ((data & 0x80) >> 1) | ((data & 0x38) >> 3);
 
-			CUR_CTRL |= port_stb;
+			CUR_CTRL |= PARPORT_CONTROL_STROBE;
 
 			outb(CUR_CTRL, pi->port + 2);
 
@@ -311,13 +305,13 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 
 			outb(CUR_CTRL, pi->port + 2);
 
-			CUR_CTRL = (CUR_CTRL | port_stb) ^ data_stb;
+			CUR_CTRL = (CUR_CTRL | PARPORT_CONTROL_STROBE) ^ PARPORT_CONTROL_INIT;
 
 			outb(CUR_CTRL, pi->port + 2);
 
 			data = inb(pi->port);
 
-			CUR_CTRL &= ~port_stb;
+			CUR_CTRL &= ~PARPORT_CONTROL_STROBE;
 
 			outb(CUR_CTRL, pi->port + 2);
 
@@ -376,7 +370,8 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 			{
 				u8 d;
 
-				CUR_CTRL = (CUR_CTRL & ~port_stb) ^ data_stb;
+				CUR_CTRL = (CUR_CTRL & ~PARPORT_CONTROL_STROBE)
+							^ PARPORT_CONTROL_INIT;
 
 				outb(CUR_CTRL, pi->port + 2);
 
@@ -386,7 +381,7 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 				d = ((d & 0x80) >> 1) | ((d & 0x38) >> 3);
 
-				CUR_CTRL |= port_stb;
+				CUR_CTRL |= PARPORT_CONTROL_STROBE;
 
 				outb(CUR_CTRL, pi->port + 2);
 
@@ -408,11 +403,11 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 			outb(CUR_CTRL, pi->port + 2);
 
-			CUR_CTRL |= port_stb;
+			CUR_CTRL |= PARPORT_CONTROL_STROBE;
 
 			while(count)
 			{
-				CUR_CTRL ^= data_stb;
+				CUR_CTRL ^= PARPORT_CONTROL_INIT;
 
 				outb(CUR_CTRL, pi->port + 2);
 
@@ -420,7 +415,7 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 				count--;
 			}
 
-			CUR_CTRL &= ~port_stb;
+			CUR_CTRL &= ~PARPORT_CONTROL_STROBE;
 
 			outb(CUR_CTRL, pi->port + 2);
 
@@ -525,7 +520,7 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 			{
 				outb(*data++, pi->port);
 
-				CUR_CTRL ^= data_stb;
+				CUR_CTRL ^= PARPORT_CONTROL_INIT;
 
 				outb(CUR_CTRL, pi->port + 2);
 			}
@@ -540,7 +535,7 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 			ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_FASTWR);
 
-			CUR_CTRL |= port_stb;
+			CUR_CTRL |= PARPORT_CONTROL_STROBE;
 
 			outb(CUR_CTRL, pi->port + 2);
 
@@ -555,7 +550,7 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 				if (this == last)
 				{
-					CUR_CTRL ^= data_stb;
+					CUR_CTRL ^= PARPORT_CONTROL_INIT;
 
 					outb(CUR_CTRL, pi->port + 2);
 				}
@@ -567,7 +562,7 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 				}
 			}
 
-			CUR_CTRL &= ~port_stb;
+			CUR_CTRL &= ~PARPORT_CONTROL_STROBE;
 
 			outb(CUR_CTRL, pi->port + 2);
 
-- 
Ondrej Zary

[PATCH 11/32] parport_pc: add 16-bit and 8-bit fast EPP transfer flags

[Ondrej Zary]

PARPORT_EPP_FAST flag currently uses 32-bit I/O port access for data
read/write (insl/outsl).
Add PARPORT_EPP_FAST_16 and PARPORT_EPP_FAST_8 that use insw/outsw
and insb/outsb (and PARPORT_EPP_FAST_32 as alias for PARPORT_EPP_FAST).

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/parport/parport_pc.c | 20 ++++++++++++++++----
 include/uapi/linux/parport.h |  3 +++
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index 5784dc20fb38..eda4e4e6d4e8 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -298,9 +298,15 @@ static size_t parport_pc_epp_read_data(struct parport *port, void *buf,
 		}
 		return got;
 	}
-	if ((flags & PARPORT_EPP_FAST) && (length > 1)) {
-		if (!(((long)buf | length) & 0x03))
+	if ((length > 1) && ((flags & PARPORT_EPP_FAST_32)
+			   || flags & PARPORT_EPP_FAST_16
+			   || flags & PARPORT_EPP_FAST_8)) {
+		if ((flags & PARPORT_EPP_FAST_32)
+		    && !(((long)buf | length) & 0x03))
 			insl(EPPDATA(port), buf, (length >> 2));
+		else if ((flags & PARPORT_EPP_FAST_16)
+			 && !(((long)buf | length) & 0x01))
+			insw(EPPDATA(port), buf, length >> 1);
 		else
 			insb(EPPDATA(port), buf, length);
 		if (inb(STATUS(port)) & 0x01) {
@@ -327,9 +333,15 @@ static size_t parport_pc_epp_write_data(struct parport *port, const void *buf,
 {
 	size_t written = 0;
 
-	if ((flags & PARPORT_EPP_FAST) && (length > 1)) {
-		if (!(((long)buf | length) & 0x03))
+	if ((length > 1) && ((flags & PARPORT_EPP_FAST_32)
+			   || flags & PARPORT_EPP_FAST_16
+			   || flags & PARPORT_EPP_FAST_8)) {
+		if ((flags & PARPORT_EPP_FAST_32)
+		    && !(((long)buf | length) & 0x03))
 			outsl(EPPDATA(port), buf, (length >> 2));
+		else if ((flags & PARPORT_EPP_FAST_16)
+			 && !(((long)buf | length) & 0x01))
+			outsw(EPPDATA(port), buf, length >> 1);
 		else
 			outsb(EPPDATA(port), buf, length);
 		if (inb(STATUS(port)) & 0x01) {
diff --git a/include/uapi/linux/parport.h b/include/uapi/linux/parport.h
index f41388f88dc3..fe93e41fc205 100644
--- a/include/uapi/linux/parport.h
+++ b/include/uapi/linux/parport.h
@@ -90,6 +90,9 @@ typedef enum {
 /* Flags for block transfer operations. */
 #define PARPORT_EPP_FAST		(1<<0) /* Unreliable counts. */
 #define PARPORT_W91284PIC		(1<<1) /* have a Warp9 w91284pic in the device */
+#define PARPORT_EPP_FAST_32		PARPORT_EPP_FAST /* 32-bit EPP transfers */
+#define PARPORT_EPP_FAST_16		(1<<2) /* 16-bit EPP transfers */
+#define PARPORT_EPP_FAST_8		(1<<3) /* 8-bit EPP transfers */
 
 /* The rest is for the kernel only */
 #endif /* _UAPI_PARPORT_H_ */
-- 
Ondrej Zary

Re: [PATCH 11/32] parport_pc: add 16-bit and 8-bit fast EPP transfer flags

[Sergey Shtylyov]

On 3/8/23 1:46 AM, Ondrej Zary wrote:

> PARPORT_EPP_FAST flag currently uses 32-bit I/O port access for data
> read/write (insl/outsl).
> Add PARPORT_EPP_FAST_16 and PARPORT_EPP_FAST_8 that use insw/outsw
> and insb/outsb (and PARPORT_EPP_FAST_32 as alias for PARPORT_EPP_FAST).
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>
> ---
>  drivers/parport/parport_pc.c | 20 ++++++++++++++++----
>  include/uapi/linux/parport.h |  3 +++
>  2 files changed, 19 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
> index 5784dc20fb38..eda4e4e6d4e8 100644
> --- a/drivers/parport/parport_pc.c
> +++ b/drivers/parport/parport_pc.c
> @@ -298,9 +298,15 @@ static size_t parport_pc_epp_read_data(struct parport *port, void *buf,
>  		}
>  		return got;
>  	}
> -	if ((flags & PARPORT_EPP_FAST) && (length > 1)) {
> -		if (!(((long)buf | length) & 0x03))
> +	if ((length > 1) && ((flags & PARPORT_EPP_FAST_32)
> +			   || flags & PARPORT_EPP_FAST_16
> +			   || flags & PARPORT_EPP_FAST_8)) {

   Why not:

> +		if ((flags & PARPORT_EPP_FAST_32)
> +		    && !(((long)buf | length) & 0x03))
>  			insl(EPPDATA(port), buf, (length >> 2));
> +		else if ((flags & PARPORT_EPP_FAST_16)
> +			 && !(((long)buf | length) & 0x01))
> +			insw(EPPDATA(port), buf, length >> 1);
>  		else
>  			insb(EPPDATA(port), buf, length);
>  		if (inb(STATUS(port)) & 0x01) {
> @@ -327,9 +333,15 @@ static size_t parport_pc_epp_write_data(struct parport *port, const void *buf,
>  {
>  	size_t written = 0;
>  
> -	if ((flags & PARPORT_EPP_FAST) && (length > 1)) {
> -		if (!(((long)buf | length) & 0x03))
> +	if ((length > 1) && ((flags & PARPORT_EPP_FAST_32)
> +			   || flags & PARPORT_EPP_FAST_16

   I think it's preferred that an operator is left at the end of a broken up line...

> +			   || flags & PARPORT_EPP_FAST_8)) {

	if (length > 1 && (flags & (PARPORT_EPP_FAST_32 |
				    PARPORT_EPP_FAST_16 |
			   	    PARPORT_EPP_FAST_8)) {

> +		if ((flags & PARPORT_EPP_FAST_32)
> +		    && !(((long)buf | length) & 0x03))

  Again, leave && on the higher line...

>  			outsl(EPPDATA(port), buf, (length >> 2));
> +		else if ((flags & PARPORT_EPP_FAST_16)
> +			 && !(((long)buf | length) & 0x01))
> +			outsw(EPPDATA(port), buf, length >> 1);
>  		else
>  			outsb(EPPDATA(port), buf, length);
>  		if (inb(STATUS(port)) & 0x01) {
[...]

MBR, Sergey

Re: [PATCH 11/32] parport_pc: add 16-bit and 8-bit fast EPP transfer flags

[Sergey Shtylyov]

On 3/11/23 11:09 PM, Sergey Shtylyov wrote:

>> PARPORT_EPP_FAST flag currently uses 32-bit I/O port access for data
>> read/write (insl/outsl).
>> Add PARPORT_EPP_FAST_16 and PARPORT_EPP_FAST_8 that use insw/outsw
>> and insb/outsb (and PARPORT_EPP_FAST_32 as alias for PARPORT_EPP_FAST).
>>
>> Signed-off-by: Ondrej Zary <linux@zary.sk>
>> ---
>>  drivers/parport/parport_pc.c | 20 ++++++++++++++++----
>>  include/uapi/linux/parport.h |  3 +++
>>  2 files changed, 19 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
>> index 5784dc20fb38..eda4e4e6d4e8 100644
>> --- a/drivers/parport/parport_pc.c
>> +++ b/drivers/parport/parport_pc.c
>> @@ -298,9 +298,15 @@ static size_t parport_pc_epp_read_data(struct parport *port, void *buf,
>>  		}
>>  		return got;
>>  	}
>> -	if ((flags & PARPORT_EPP_FAST) && (length > 1)) {
>> -		if (!(((long)buf | length) & 0x03))
>> +	if ((length > 1) && ((flags & PARPORT_EPP_FAST_32)
>> +			   || flags & PARPORT_EPP_FAST_16
>> +			   || flags & PARPORT_EPP_FAST_8)) {
> 
>    Why not:
> 
>> +		if ((flags & PARPORT_EPP_FAST_32)
>> +		    && !(((long)buf | length) & 0x03))
>>  			insl(EPPDATA(port), buf, (length >> 2));
>> +		else if ((flags & PARPORT_EPP_FAST_16)
>> +			 && !(((long)buf | length) & 0x01))
>> +			insw(EPPDATA(port), buf, length >> 1);
>>  		else
>>  			insb(EPPDATA(port), buf, length);
>

   Oopsie, s/th went wrong while editing... :-/

[...]

MBR, Sergey

[PATCH 12/32] pata_parport-bpck6: use parport access functions instead of port I/O

[Ondrej Zary]

Use parport access functions instead of inb/outb/inw/outw/inl/outl.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   |   1 -
 drivers/ata/pata_parport/ppc6lnx.c | 212 +++++++++--------------------
 2 files changed, 68 insertions(+), 145 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index dc0f71cc305e..39ac6e1a0aee 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -15,7 +15,6 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
-#include <asm/io.h>
 #include <linux/parport.h>
 #include "pata_parport.h"
 #include "ppc6lnx.c"
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 09480a7fcaee..89c40d6ab036 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -17,7 +17,6 @@
 
 
 #define port_int					16
-#define port_dir					0x20
 
 #define ECR_EPP	0x80
 #define ECR_BI	0x20
@@ -106,65 +105,60 @@ static int ppc6_select(struct pi_adapter *pi)
 {
 	u8 i, j, k;
 
-	i = inb(pi->port + 1);
+	pi->saved_r0 = parport_read_data(pi->pardev->port);
 
-	if (i & 1)
-		outb(i, pi->port + 1);
-
-	pi->saved_r0 = inb(pi->port);
-
-	pi->saved_r2 = inb(pi->port + 2) & 0x5F; // readback ctrl
+	pi->saved_r2 = parport_read_control(pi->pardev->port) & 0x5F; // readback ctrl
 
 	CUR_CTRL = pi->saved_r2;
 
 	CUR_CTRL |= PARPORT_CONTROL_SELECT;
 
-	outb(CUR_CTRL, pi->port + 2);
+	parport_write_control(pi->pardev->port, CUR_CTRL);
 
 	if (pi->saved_r0 == 'b')
-		outb('x', pi->port);
+		parport_write_data(pi->pardev->port, 'x');
 
-	outb('b', pi->port);
-	outb('p', pi->port);
-	outb(pi->unit, pi->port);
-	outb(~pi->unit, pi->port);
+	parport_write_data(pi->pardev->port, 'b');
+	parport_write_data(pi->pardev->port, 'p');
+	parport_write_data(pi->pardev->port, pi->unit);
+	parport_write_data(pi->pardev->port, ~pi->unit);
 
 	CUR_CTRL &= ~PARPORT_CONTROL_SELECT;
 
-	outb(CUR_CTRL, pi->port + 2);
+	parport_write_control(pi->pardev->port, CUR_CTRL);
 
 	CUR_CTRL = (CUR_CTRL & port_int) | PARPORT_CONTROL_INIT;
 
-	outb(CUR_CTRL, pi->port + 2);
+	parport_write_control(pi->pardev->port, CUR_CTRL);
 
 	i = mode_map[pi->mode] & 0x0C;
 
 	if (i == 0)
 		i = (mode_map[pi->mode] & 2) | 1;
 
-	outb(i, pi->port);
+	parport_write_data(pi->pardev->port, i);
 
 	CUR_CTRL |= PARPORT_CONTROL_SELECT;
 
-	outb(CUR_CTRL, pi->port + 2);
+	parport_write_control(pi->pardev->port, CUR_CTRL);
 
 	// DELAY
 
 	CUR_CTRL |= PARPORT_CONTROL_AUTOFD;
 
-	outb(CUR_CTRL, pi->port + 2);
+	parport_write_control(pi->pardev->port, CUR_CTRL);
 
 	j = ((i & 0x08) << 4) | ((i & 0x07) << 3);
 
-	k = inb(pi->port + 1) & 0xB8;
+	k = parport_read_status(pi->pardev->port) & 0xB8;
 
 	if (j == k)
 	{
 		CUR_CTRL &= ~PARPORT_CONTROL_AUTOFD;
 
-		outb(CUR_CTRL, pi->port + 2);
+		parport_write_control(pi->pardev->port, CUR_CTRL);
 
-		k = (inb(pi->port + 1) & 0xB8) ^ 0xB8;
+		k = (parport_read_status(pi->pardev->port) & 0xB8) ^ 0xB8;
 
 		if (j == k)
 		{
@@ -173,15 +167,15 @@ static int ppc6_select(struct pi_adapter *pi)
 			else				// PPC/ECP
 				CUR_CTRL &= ~PARPORT_CONTROL_SELECT;
 
-			outb(CUR_CTRL, pi->port + 2);
+			parport_write_control(pi->pardev->port, CUR_CTRL);
 
 			return(1);
 		}
 	}
 
-	outb(pi->saved_r2, pi->port + 2);
+	parport_write_control(pi->pardev->port, pi->saved_r2);
 
-	outb(pi->saved_r0, pi->port);
+	parport_write_data(pi->pardev->port, pi->saved_r0);
 
 	return(0); // FAIL
 }
@@ -195,13 +189,13 @@ static void ppc6_deselect(struct pi_adapter *pi)
 	else								// PPC/ECP
 		CUR_CTRL |= PARPORT_CONTROL_SELECT;
 
-	outb(CUR_CTRL, pi->port + 2);
+	parport_write_control(pi->pardev->port, CUR_CTRL);
 
-	outb(pi->saved_r0, pi->port);
+	parport_write_data(pi->pardev->port, pi->saved_r0);
 
-	outb((pi->saved_r2 | PARPORT_CONTROL_SELECT), pi->port + 2);
+	parport_write_control(pi->pardev->port, (pi->saved_r2 | PARPORT_CONTROL_SELECT));
 
-	outb(pi->saved_r2, pi->port + 2);
+	parport_write_control(pi->pardev->port, pi->saved_r2);
 }
 
 //***************************************************************************
@@ -215,11 +209,11 @@ static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 		case PPCMODE_BI_SW :
 		case PPCMODE_BI_FW :
 		{
-			outb(cmd, pi->port);
+			parport_write_data(pi->pardev->port, cmd);
 
 			CUR_CTRL ^= PARPORT_CONTROL_AUTOFD;
 
-			outb(CUR_CTRL, pi->port + 2);
+			parport_write_control(pi->pardev->port, CUR_CTRL);
 
 			break;
 		}
@@ -228,7 +222,7 @@ static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 		case PPCMODE_EPP_WORD :
 		case PPCMODE_EPP_DWORD :
 		{
-			outb(cmd, pi->port + 3);
+			pi->pardev->port->ops->epp_write_addr(pi->pardev->port, &cmd, 1, 0);
 
 			break;
 		}
@@ -246,11 +240,11 @@ static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 		case PPCMODE_BI_SW :
 		case PPCMODE_BI_FW :
 		{
-			outb(data, pi->port);
+			parport_write_data(pi->pardev->port, data);
 
 			CUR_CTRL ^= PARPORT_CONTROL_INIT;
 
-			outb(CUR_CTRL, pi->port + 2);
+			parport_write_control(pi->pardev->port, CUR_CTRL);
 
 			break;
 		}
@@ -259,7 +253,7 @@ static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 		case PPCMODE_EPP_WORD :
 		case PPCMODE_EPP_DWORD :
 		{
-			outb(data, pi->port + 4);
+			pi->pardev->port->ops->epp_write_data(pi->pardev->port, &data, 1, 0);
 
 			break;
 		}
@@ -279,21 +273,21 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 		{
 			CUR_CTRL = (CUR_CTRL & ~PARPORT_CONTROL_STROBE) ^ PARPORT_CONTROL_INIT;
 
-			outb(CUR_CTRL, pi->port + 2);
+			parport_write_control(pi->pardev->port, CUR_CTRL);
 
 			// DELAY
 
-			data = inb(pi->port + 1);
+			data = parport_read_status(pi->pardev->port);
 
 			data = ((data & 0x80) >> 1) | ((data & 0x38) >> 3);
 
 			CUR_CTRL |= PARPORT_CONTROL_STROBE;
 
-			outb(CUR_CTRL, pi->port + 2);
+			parport_write_control(pi->pardev->port, CUR_CTRL);
 
 			// DELAY
 
-			data |= inb(pi->port + 1) & 0xB8;
+			data |= parport_read_status(pi->pardev->port) & 0xB8;
 
 			break;
 		}
@@ -301,23 +295,19 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 		case PPCMODE_BI_SW :
 		case PPCMODE_BI_FW :
 		{
-			CUR_CTRL |= port_dir;
-
-			outb(CUR_CTRL, pi->port + 2);
+			parport_data_reverse(pi->pardev->port);
 
 			CUR_CTRL = (CUR_CTRL | PARPORT_CONTROL_STROBE) ^ PARPORT_CONTROL_INIT;
 
-			outb(CUR_CTRL, pi->port + 2);
+			parport_write_control(pi->pardev->port, CUR_CTRL);
 
-			data = inb(pi->port);
+			data = parport_read_data(pi->pardev->port);
 
 			CUR_CTRL &= ~PARPORT_CONTROL_STROBE;
 
-			outb(CUR_CTRL, pi->port + 2);
-
-			CUR_CTRL &= ~port_dir;
+			parport_write_control(pi->pardev->port, CUR_CTRL);
 
-			outb(CUR_CTRL, pi->port + 2);
+			parport_data_forward(pi->pardev->port);
 
 			break;
 		}
@@ -326,11 +316,7 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 		case PPCMODE_EPP_WORD :
 		case PPCMODE_EPP_DWORD :
 		{
-			outb((CUR_CTRL | port_dir), pi->port + 2);
-
-			data = inb(pi->port + 4);
-
-			outb(CUR_CTRL, pi->port + 2);
+			pi->pardev->port->ops->epp_read_data(pi->pardev->port, &data, 1, 0);
 
 			break;
 		}
@@ -373,21 +359,21 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 				CUR_CTRL = (CUR_CTRL & ~PARPORT_CONTROL_STROBE)
 							^ PARPORT_CONTROL_INIT;
 
-				outb(CUR_CTRL, pi->port + 2);
+				parport_write_control(pi->pardev->port, CUR_CTRL);
 
 				// DELAY
 
-				d = inb(pi->port + 1);
+				d = parport_read_status(pi->pardev->port);
 
 				d = ((d & 0x80) >> 1) | ((d & 0x38) >> 3);
 
 				CUR_CTRL |= PARPORT_CONTROL_STROBE;
 
-				outb(CUR_CTRL, pi->port + 2);
+				parport_write_control(pi->pardev->port, CUR_CTRL);
 
 				// DELAY
 
-				d |= inb(pi->port + 1) & 0xB8;
+				d |= parport_read_status(pi->pardev->port) & 0xB8;
 
 				*data++ = d;
 				count--;
@@ -399,9 +385,7 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 		case PPCMODE_BI_SW :
 		case PPCMODE_BI_FW :
 		{
-			CUR_CTRL |= port_dir;
-
-			outb(CUR_CTRL, pi->port + 2);
+			parport_data_reverse(pi->pardev->port);
 
 			CUR_CTRL |= PARPORT_CONTROL_STROBE;
 
@@ -409,84 +393,47 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 			{
 				CUR_CTRL ^= PARPORT_CONTROL_INIT;
 
-				outb(CUR_CTRL, pi->port + 2);
+				parport_write_control(pi->pardev->port, CUR_CTRL);
 
-				*data++ = inb(pi->port);
+				*data++ = parport_read_data(pi->pardev->port);
 				count--;
 			}
 
 			CUR_CTRL &= ~PARPORT_CONTROL_STROBE;
 
-			outb(CUR_CTRL, pi->port + 2);
+			parport_write_control(pi->pardev->port, CUR_CTRL);
 
-			CUR_CTRL &= ~port_dir;
-
-			outb(CUR_CTRL, pi->port + 2);
+			parport_data_forward(pi->pardev->port);
 
 			break;
 		}
 
 		case PPCMODE_EPP_BYTE :
 		{
-			outb((CUR_CTRL | port_dir), pi->port + 2);
-
 			// DELAY
 
-			while(count)
-			{
-				*data++ = inb(pi->port + 4);
-				count--;
-			}
-
-			outb(CUR_CTRL, pi->port + 2);
+			pi->pardev->port->ops->epp_read_data(pi->pardev->port,
+					data, count, PARPORT_EPP_FAST_8);
 
 			break;
 		}
 
 		case PPCMODE_EPP_WORD :
 		{
-			outb((CUR_CTRL | port_dir), pi->port + 2);
-
 			// DELAY
 
-			while(count > 1)
-			{
-				*((u16 *)data) = inw(pi->port + 4);
-				data  += 2;
-				count -= 2;
-			}
-
-			while(count)
-			{
-				*data++ = inb(pi->port + 4);
-				count--;
-			}
-
-			outb(CUR_CTRL, pi->port + 2);
+			pi->pardev->port->ops->epp_read_data(pi->pardev->port,
+					data, count, PARPORT_EPP_FAST_16);
 
 			break;
 		}
 
 		case PPCMODE_EPP_DWORD :
 		{
-			outb((CUR_CTRL | port_dir), pi->port + 2);
-
 			// DELAY
 
-			while(count > 3)
-			{
-				*((u32 *)data) = inl(pi->port + 4);
-				data  += 4;
-				count -= 4;
-			}
-
-			while(count)
-			{
-				*data++ = inb(pi->port + 4);
-				count--;
-			}
-
-			outb(CUR_CTRL, pi->port + 2);
+			pi->pardev->port->ops->epp_read_data(pi->pardev->port,
+					data, count, PARPORT_EPP_FAST_32);
 
 			break;
 		}
@@ -503,7 +450,7 @@ static void ppc6_wait_for_fifo(struct pi_adapter *pi)
 	if (PPC_FLAGS & fifo_wait)
 	{
 		for(i=0; i<20; i++)
-			inb(pi->port + 1);
+			parport_read_status(pi->pardev->port);
 	}
 }
 
@@ -518,11 +465,11 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 		{
 			while(count--)
 			{
-				outb(*data++, pi->port);
+				parport_write_data(pi->pardev->port, *data++);
 
 				CUR_CTRL ^= PARPORT_CONTROL_INIT;
 
-				outb(CUR_CTRL, pi->port + 2);
+				parport_write_control(pi->pardev->port, CUR_CTRL);
 			}
 
 			break;
@@ -537,11 +484,11 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 			CUR_CTRL |= PARPORT_CONTROL_STROBE;
 
-			outb(CUR_CTRL, pi->port + 2);
+			parport_write_control(pi->pardev->port, CUR_CTRL);
 
 			last = *data;
 
-			outb(last, pi->port);
+			parport_write_data(pi->pardev->port, last);
 
 			while(count)
 			{
@@ -552,11 +499,11 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 				{
 					CUR_CTRL ^= PARPORT_CONTROL_INIT;
 
-					outb(CUR_CTRL, pi->port + 2);
+					parport_write_control(pi->pardev->port, CUR_CTRL);
 				}
 				else
 				{
-					outb(this, pi->port);
+					parport_write_data(pi->pardev->port, this);
 
 					last = this;
 				}
@@ -564,7 +511,7 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 			CUR_CTRL &= ~PARPORT_CONTROL_STROBE;
 
-			outb(CUR_CTRL, pi->port + 2);
+			parport_write_control(pi->pardev->port, CUR_CTRL);
 
 			ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_FASTWR);
 
@@ -573,11 +520,8 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 		case PPCMODE_EPP_BYTE :
 		{
-			while(count)
-			{
-				outb(*data++, pi->port + 4);
-				count--;
-			}
+			pi->pardev->port->ops->epp_write_data(pi->pardev->port,
+					data, count, PARPORT_EPP_FAST_8);
 
 			ppc6_wait_for_fifo(pi);
 
@@ -586,18 +530,8 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 		case PPCMODE_EPP_WORD :
 		{
-			while(count > 1)
-			{
-				outw(*((u16 *)data), pi->port + 4);
-				data  += 2;
-				count -= 2;
-			}
-
-			while(count)
-			{
-				outb(*data++, pi->port + 4);
-				count--;
-			}
+			pi->pardev->port->ops->epp_write_data(pi->pardev->port,
+					data, count, PARPORT_EPP_FAST_16);
 
 			ppc6_wait_for_fifo(pi);
 
@@ -606,18 +540,8 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 		case PPCMODE_EPP_DWORD :
 		{
-			while(count > 3)
-			{
-				outl(*((u32 *)data), pi->port + 4);
-				data  += 4;
-				count -= 4;
-			}
-
-			while(count)
-			{
-				outb(*data++, pi->port + 4);
-				count--;
-			}
+			pi->pardev->port->ops->epp_write_data(pi->pardev->port,
+					data, count, PARPORT_EPP_FAST_32);
 
 			ppc6_wait_for_fifo(pi);
 
-- 
Ondrej Zary

[PATCH 13/32] pata_parport-bpck6: use parport_frob_control and remove CUR_CTRL

[Ondrej Zary]

Use parport_frob_control instead of manually maintaining control
register state.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/ppc6lnx.c | 120 +++++++++--------------------
 1 file changed, 36 insertions(+), 84 deletions(-)

diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 89c40d6ab036..fdc11875bf1b 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -15,14 +15,6 @@
 
 //***************************************************************************
 
-
-#define port_int					16
-
-#define ECR_EPP	0x80
-#define ECR_BI	0x20
-
-//***************************************************************************
-
 //  60772 Commands
 
 #define ACCESS_REG				0x00
@@ -57,7 +49,6 @@
 
 //***************************************************************************
 
-#define CUR_CTRL	(((u8 *)&pi->private)[0])
 #define PPC_FLAGS	(((u8 *)&pi->private)[1])
 
 //***************************************************************************
@@ -109,11 +100,7 @@ static int ppc6_select(struct pi_adapter *pi)
 
 	pi->saved_r2 = parport_read_control(pi->pardev->port) & 0x5F; // readback ctrl
 
-	CUR_CTRL = pi->saved_r2;
-
-	CUR_CTRL |= PARPORT_CONTROL_SELECT;
-
-	parport_write_control(pi->pardev->port, CUR_CTRL);
+	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_SELECT, PARPORT_CONTROL_SELECT);
 
 	if (pi->saved_r0 == 'b')
 		parport_write_data(pi->pardev->port, 'x');
@@ -123,13 +110,9 @@ static int ppc6_select(struct pi_adapter *pi)
 	parport_write_data(pi->pardev->port, pi->unit);
 	parport_write_data(pi->pardev->port, ~pi->unit);
 
-	CUR_CTRL &= ~PARPORT_CONTROL_SELECT;
-
-	parport_write_control(pi->pardev->port, CUR_CTRL);
+	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_SELECT, 0);
 
-	CUR_CTRL = (CUR_CTRL & port_int) | PARPORT_CONTROL_INIT;
-
-	parport_write_control(pi->pardev->port, CUR_CTRL);
+	parport_write_control(pi->pardev->port, PARPORT_CONTROL_INIT);
 
 	i = mode_map[pi->mode] & 0x0C;
 
@@ -138,15 +121,11 @@ static int ppc6_select(struct pi_adapter *pi)
 
 	parport_write_data(pi->pardev->port, i);
 
-	CUR_CTRL |= PARPORT_CONTROL_SELECT;
-
-	parport_write_control(pi->pardev->port, CUR_CTRL);
+	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_SELECT, PARPORT_CONTROL_SELECT);
 
 	// DELAY
 
-	CUR_CTRL |= PARPORT_CONTROL_AUTOFD;
-
-	parport_write_control(pi->pardev->port, CUR_CTRL);
+	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_AUTOFD, PARPORT_CONTROL_AUTOFD);
 
 	j = ((i & 0x08) << 4) | ((i & 0x07) << 3);
 
@@ -154,20 +133,18 @@ static int ppc6_select(struct pi_adapter *pi)
 
 	if (j == k)
 	{
-		CUR_CTRL &= ~PARPORT_CONTROL_AUTOFD;
-
-		parport_write_control(pi->pardev->port, CUR_CTRL);
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_AUTOFD, 0);
 
 		k = (parport_read_status(pi->pardev->port) & 0xB8) ^ 0xB8;
 
 		if (j == k)
 		{
 			if (i & 4)	// EPP
-				CUR_CTRL &= ~(PARPORT_CONTROL_SELECT | PARPORT_CONTROL_INIT);
+				parport_frob_control(pi->pardev->port,
+					PARPORT_CONTROL_SELECT | PARPORT_CONTROL_INIT, 0);
 			else				// PPC/ECP
-				CUR_CTRL &= ~PARPORT_CONTROL_SELECT;
-
-			parport_write_control(pi->pardev->port, CUR_CTRL);
+				parport_frob_control(pi->pardev->port,
+					PARPORT_CONTROL_SELECT, 0);
 
 			return(1);
 		}
@@ -185,11 +162,11 @@ static int ppc6_select(struct pi_adapter *pi)
 static void ppc6_deselect(struct pi_adapter *pi)
 {
 	if (mode_map[pi->mode] & 4)	// EPP
-		CUR_CTRL |= PARPORT_CONTROL_INIT;
+		parport_frob_control(pi->pardev->port,
+			PARPORT_CONTROL_INIT, PARPORT_CONTROL_INIT);
 	else								// PPC/ECP
-		CUR_CTRL |= PARPORT_CONTROL_SELECT;
-
-	parport_write_control(pi->pardev->port, CUR_CTRL);
+		parport_frob_control(pi->pardev->port,
+			PARPORT_CONTROL_SELECT, PARPORT_CONTROL_SELECT);
 
 	parport_write_data(pi->pardev->port, pi->saved_r0);
 
@@ -210,10 +187,7 @@ static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 		case PPCMODE_BI_FW :
 		{
 			parport_write_data(pi->pardev->port, cmd);
-
-			CUR_CTRL ^= PARPORT_CONTROL_AUTOFD;
-
-			parport_write_control(pi->pardev->port, CUR_CTRL);
+			parport_frob_control(pi->pardev->port, 0, PARPORT_CONTROL_AUTOFD);
 
 			break;
 		}
@@ -241,10 +215,7 @@ static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 		case PPCMODE_BI_FW :
 		{
 			parport_write_data(pi->pardev->port, data);
-
-			CUR_CTRL ^= PARPORT_CONTROL_INIT;
-
-			parport_write_control(pi->pardev->port, CUR_CTRL);
+			parport_frob_control(pi->pardev->port, 0, PARPORT_CONTROL_INIT);
 
 			break;
 		}
@@ -271,9 +242,8 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 		case PPCMODE_UNI_SW :
 		case PPCMODE_UNI_FW :
 		{
-			CUR_CTRL = (CUR_CTRL & ~PARPORT_CONTROL_STROBE) ^ PARPORT_CONTROL_INIT;
-
-			parport_write_control(pi->pardev->port, CUR_CTRL);
+			parport_frob_control(pi->pardev->port,
+				PARPORT_CONTROL_STROBE, PARPORT_CONTROL_INIT);
 
 			// DELAY
 
@@ -281,9 +251,8 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 
 			data = ((data & 0x80) >> 1) | ((data & 0x38) >> 3);
 
-			CUR_CTRL |= PARPORT_CONTROL_STROBE;
-
-			parport_write_control(pi->pardev->port, CUR_CTRL);
+			parport_frob_control(pi->pardev->port,
+				PARPORT_CONTROL_STROBE, PARPORT_CONTROL_STROBE);
 
 			// DELAY
 
@@ -297,15 +266,12 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 		{
 			parport_data_reverse(pi->pardev->port);
 
-			CUR_CTRL = (CUR_CTRL | PARPORT_CONTROL_STROBE) ^ PARPORT_CONTROL_INIT;
-
-			parport_write_control(pi->pardev->port, CUR_CTRL);
+			parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE,
+				PARPORT_CONTROL_STROBE | PARPORT_CONTROL_INIT);
 
 			data = parport_read_data(pi->pardev->port);
 
-			CUR_CTRL &= ~PARPORT_CONTROL_STROBE;
-
-			parport_write_control(pi->pardev->port, CUR_CTRL);
+			parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE, 0);
 
 			parport_data_forward(pi->pardev->port);
 
@@ -356,10 +322,8 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 			{
 				u8 d;
 
-				CUR_CTRL = (CUR_CTRL & ~PARPORT_CONTROL_STROBE)
-							^ PARPORT_CONTROL_INIT;
-
-				parport_write_control(pi->pardev->port, CUR_CTRL);
+				parport_frob_control(pi->pardev->port,
+					PARPORT_CONTROL_STROBE, PARPORT_CONTROL_INIT);
 
 				// DELAY
 
@@ -367,9 +331,8 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 				d = ((d & 0x80) >> 1) | ((d & 0x38) >> 3);
 
-				CUR_CTRL |= PARPORT_CONTROL_STROBE;
-
-				parport_write_control(pi->pardev->port, CUR_CTRL);
+				parport_frob_control(pi->pardev->port,
+					PARPORT_CONTROL_STROBE, PARPORT_CONTROL_STROBE);
 
 				// DELAY
 
@@ -387,21 +350,16 @@ static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 		{
 			parport_data_reverse(pi->pardev->port);
 
-			CUR_CTRL |= PARPORT_CONTROL_STROBE;
-
 			while(count)
 			{
-				CUR_CTRL ^= PARPORT_CONTROL_INIT;
-
-				parport_write_control(pi->pardev->port, CUR_CTRL);
+				parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE,
+					PARPORT_CONTROL_STROBE | PARPORT_CONTROL_INIT);
 
 				*data++ = parport_read_data(pi->pardev->port);
 				count--;
 			}
 
-			CUR_CTRL &= ~PARPORT_CONTROL_STROBE;
-
-			parport_write_control(pi->pardev->port, CUR_CTRL);
+			parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE, 0);
 
 			parport_data_forward(pi->pardev->port);
 
@@ -467,9 +425,7 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 			{
 				parport_write_data(pi->pardev->port, *data++);
 
-				CUR_CTRL ^= PARPORT_CONTROL_INIT;
-
-				parport_write_control(pi->pardev->port, CUR_CTRL);
+				parport_frob_control(pi->pardev->port, 0, PARPORT_CONTROL_INIT);
 			}
 
 			break;
@@ -482,9 +438,8 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 			ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_FASTWR);
 
-			CUR_CTRL |= PARPORT_CONTROL_STROBE;
-
-			parport_write_control(pi->pardev->port, CUR_CTRL);
+			parport_frob_control(pi->pardev->port,
+				PARPORT_CONTROL_STROBE, PARPORT_CONTROL_STROBE);
 
 			last = *data;
 
@@ -497,9 +452,8 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 				if (this == last)
 				{
-					CUR_CTRL ^= PARPORT_CONTROL_INIT;
-
-					parport_write_control(pi->pardev->port, CUR_CTRL);
+					parport_frob_control(pi->pardev->port,
+						0, PARPORT_CONTROL_INIT);
 				}
 				else
 				{
@@ -509,9 +463,7 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 				}
 			}
 
-			CUR_CTRL &= ~PARPORT_CONTROL_STROBE;
-
-			parport_write_control(pi->pardev->port, CUR_CTRL);
+			parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE, 0);
 
 			ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_FASTWR);
 
-- 
Ondrej Zary

[PATCH 14/32] pata_parport-bpck6: remove PPC_FLAGS

[Ondrej Zary]

pi->private is now not used for any other purpose, so store wait_fifo
flag directly there and remove PPC_FLAGS define.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/ppc6lnx.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index fdc11875bf1b..9a166f396112 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -49,10 +49,6 @@
 
 //***************************************************************************
 
-#define PPC_FLAGS	(((u8 *)&pi->private)[1])
-
-//***************************************************************************
-
 // ppc_flags
 
 #define fifo_wait					0x10
@@ -405,7 +401,7 @@ static void ppc6_wait_for_fifo(struct pi_adapter *pi)
 {
 	int i;
 
-	if (PPC_FLAGS & fifo_wait)
+	if (pi->private & fifo_wait)
 	{
 		for(i=0; i<20; i++)
 			parport_read_status(pi->pardev->port);
@@ -562,7 +558,7 @@ static int ppc6_open(struct pi_adapter *pi)
 	if (ret == 0)
 		return(ret);
 
-	PPC_FLAGS &= ~fifo_wait;
+	pi->private = 0;
 
 	ppc6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
 	ppc6_wr_data_byte(pi, RAMSIZE_128K);
@@ -570,7 +566,7 @@ static int ppc6_open(struct pi_adapter *pi)
 	ppc6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
 
 	if ((ppc6_rd_data_byte(pi) & 0x3F) == 0x0C)
-		PPC_FLAGS |= fifo_wait;
+		pi->private |= fifo_wait;
 
 	return(ret);
 }
-- 
Ondrej Zary

Re: [PATCH 14/32] pata_parport-bpck6: remove PPC_FLAGS

[Sergey Shtylyov]

On 3/8/23 1:46 AM, Ondrej Zary wrote:

> pi->private is now not used for any other purpose, so store wait_fifo
> flag directly there and remove PPC_FLAGS define.
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>

[...]

Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>

MBR, Sergey

[PATCH 15/32] pata_parport-bpck6: remove ppc6_close

[Ondrej Zary]

ppc6_close does not do anything except calling ppc6_deselect. Remove
ppc6_close and call ppc6_deselect directly.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 4 ++--
 drivers/ata/pata_parport/ppc6lnx.c | 8 --------
 2 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 39ac6e1a0aee..b8135a6eed16 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -51,7 +51,7 @@ static void bpck6_disconnect(struct pi_adapter *pi)
 {
 	dev_dbg(&pi->dev, "disconnect\n");
 	ppc6_wr_extout(pi, 0x0);
-	ppc6_close(pi);
+	ppc6_deselect(pi);
 }
 
 static int bpck6_test_port(struct pi_adapter *pi)   /* check for 8-bit port */
@@ -83,7 +83,7 @@ static int bpck6_probe_unit(struct pi_adapter *pi)
 
   	if(out)
  	{
-		ppc6_close(pi);
+		ppc6_deselect(pi);
 		dev_dbg(&pi->dev, "leaving probe\n");
 		pi->mode = saved_mode;
                return(1);
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 9a166f396112..5b7796083e7e 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -81,7 +81,6 @@ static void ppc6_rd_port16_blk(struct pi_adapter *pi, u8 port, u8 *data, long le
 static void ppc6_wr_port16_blk(struct pi_adapter *pi, u8 port, u8 *data, long length);
 static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata);
 static int ppc6_open(struct pi_adapter *pi);
-static void ppc6_close(struct pi_adapter *pi);
 
 //***************************************************************************
 
@@ -573,10 +572,3 @@ static int ppc6_open(struct pi_adapter *pi)
 
 //***************************************************************************
 
-static void ppc6_close(struct pi_adapter *pi)
-{
-	ppc6_deselect(pi);
-}
-
-//***************************************************************************
-
-- 
Ondrej Zary

[PATCH 16/32] pata_parport-bpck6: merge ppc6_rd_port into bpck6_read_regr

[Ondrej Zary]

ppc6_rd_port is only called by bpck6_read_regr. Merge ppc6_rd_port
into bpck6_read_regr.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   |  5 ++++-
 drivers/ata/pata_parport/ppc6lnx.c | 10 ----------
 2 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index b8135a6eed16..2918fc9e9def 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -21,7 +21,10 @@
 
 static int bpck6_read_regr(struct pi_adapter *pi, int cont, int reg)
 {
-	return ppc6_rd_port(pi, cont?reg|8:reg);
+	u8 port = cont ? reg | 8 : reg;
+
+	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_READ);
+	return ppc6_rd_data_byte(pi);
 }
 
 static void bpck6_write_regr(struct pi_adapter *pi, int cont, int reg, int val)
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 5b7796083e7e..23dce177b722 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -72,7 +72,6 @@ static void ppc6_deselect(struct pi_adapter *pi);
 static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd);
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
 static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
-static u8 ppc6_rd_port(struct pi_adapter *pi, u8 port);
 static void ppc6_wr_port(struct pi_adapter *pi, u8 port, u8 data);
 static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count);
 static void ppc6_wait_for_fifo(struct pi_adapter *pi);
@@ -288,15 +287,6 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 
 //***************************************************************************
 
-static u8 ppc6_rd_port(struct pi_adapter *pi, u8 port)
-{
-	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_READ);
-
-	return ppc6_rd_data_byte(pi);
-}
-
-//***************************************************************************
-
 static void ppc6_wr_port(struct pi_adapter *pi, u8 port, u8 data)
 {
 	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_WRITE);
-- 
Ondrej Zary

[PATCH 17/32] pata_parport-bpck6: merge ppc6_wr_port into bpck6_write_regr

[Ondrej Zary]

ppc6_wr_port is only called by bpck6_write_regr. Merge ppc6_wr_port
into bpck6_write_regr.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   |  5 ++++-
 drivers/ata/pata_parport/ppc6lnx.c | 10 ----------
 2 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 2918fc9e9def..8e0094e3b02b 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -29,7 +29,10 @@ static int bpck6_read_regr(struct pi_adapter *pi, int cont, int reg)
 
 static void bpck6_write_regr(struct pi_adapter *pi, int cont, int reg, int val)
 {
-	ppc6_wr_port(pi, cont?reg|8:reg, val);
+	u8 port = cont ? reg | 8 : reg;
+
+	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_WRITE);
+	ppc6_wr_data_byte(pi, val);
 }
 
 static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 23dce177b722..35427742e4d3 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -72,7 +72,6 @@ static void ppc6_deselect(struct pi_adapter *pi);
 static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd);
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
 static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
-static void ppc6_wr_port(struct pi_adapter *pi, u8 port, u8 data);
 static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count);
 static void ppc6_wait_for_fifo(struct pi_adapter *pi);
 static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count);
@@ -287,15 +286,6 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 
 //***************************************************************************
 
-static void ppc6_wr_port(struct pi_adapter *pi, u8 port, u8 data)
-{
-	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_WRITE);
-
-	ppc6_wr_data_byte(pi, data);
-}
-
-//***************************************************************************
-
 static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
 {
 	switch (mode_map[pi->mode])
-- 
Ondrej Zary

[PATCH 18/32] pata_parport-bpck6: merge ppc6_rd_port16_blk into bpck6_read_block

[Ondrej Zary]

ppc6_rd_port16_blk is only called by bpck6_read_block. Merge
ppc6_rd_port16_blk into bpck6_read_block.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 10 +++++++++-
 drivers/ata/pata_parport/ppc6lnx.c | 21 ---------------------
 2 files changed, 9 insertions(+), 22 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 8e0094e3b02b..aaf6737891a5 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -42,7 +42,15 @@ static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 
 static void bpck6_read_block(struct pi_adapter *pi, char *buf, int len)
 {
-	ppc6_rd_port16_blk(pi, ATA_REG_DATA, buf, (u32)len>>1);
+	ppc6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
+	ppc6_wr_data_byte(pi, (u8)len);
+	ppc6_wr_data_byte(pi, (u8)(len >> 8));
+	ppc6_wr_data_byte(pi, 0);
+
+	ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
+	ppc6_send_cmd(pi, ATA_REG_DATA | ACCESS_PORT | ACCESS_READ);
+	ppc6_rd_data_blk(pi, buf, len);
+	ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
 }
 
 static void bpck6_connect(struct pi_adapter *pi)
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 35427742e4d3..ac336ce1695b 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -75,7 +75,6 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
 static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count);
 static void ppc6_wait_for_fifo(struct pi_adapter *pi);
 static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count);
-static void ppc6_rd_port16_blk(struct pi_adapter *pi, u8 port, u8 *data, long length);
 static void ppc6_wr_port16_blk(struct pi_adapter *pi, u8 port, u8 *data, long length);
 static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata);
 static int ppc6_open(struct pi_adapter *pi);
@@ -479,26 +478,6 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 //***************************************************************************
 
-static void ppc6_rd_port16_blk(struct pi_adapter *pi, u8 port, u8 *data, long length)
-{
-	length = length << 1;
-
-	ppc6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
-	ppc6_wr_data_byte(pi, (u8)length);
-	ppc6_wr_data_byte(pi, (u8)(length >> 8));
-	ppc6_wr_data_byte(pi, 0);
-
-	ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
-
-	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_READ);
-
-	ppc6_rd_data_blk(pi, data, length);
-
-	ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
-}
-
-//***************************************************************************
-
 static void ppc6_wr_port16_blk(struct pi_adapter *pi, u8 port, u8 *data, long length)
 {
 	length = length << 1;
-- 
Ondrej Zary

[PATCH 19/32] pata_parport-bpck6: merge ppc6_wr_port16_blk into bpck6_write_block

[Ondrej Zary]

ppc6_wr_port16_blk is only called by bpck6_write_block. Merge
ppc6_wr_port16_blk into bpck6_write_block.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 10 +++++++++-
 drivers/ata/pata_parport/ppc6lnx.c | 21 ---------------------
 2 files changed, 9 insertions(+), 22 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index aaf6737891a5..1c04fcaba74a 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -37,7 +37,15 @@ static void bpck6_write_regr(struct pi_adapter *pi, int cont, int reg, int val)
 
 static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 {
-	ppc6_wr_port16_blk(pi, ATA_REG_DATA, buf, (u32)len>>1);
+	ppc6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
+	ppc6_wr_data_byte(pi, (u8)len);
+	ppc6_wr_data_byte(pi, (u8)(len >> 8));
+	ppc6_wr_data_byte(pi, 0);
+
+	ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
+	ppc6_send_cmd(pi, ATA_REG_DATA | ACCESS_PORT | ACCESS_WRITE);
+	ppc6_wr_data_blk(pi, buf, len);
+	ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
 }
 
 static void bpck6_read_block(struct pi_adapter *pi, char *buf, int len)
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index ac336ce1695b..d275de3f1ead 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -75,7 +75,6 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
 static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count);
 static void ppc6_wait_for_fifo(struct pi_adapter *pi);
 static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count);
-static void ppc6_wr_port16_blk(struct pi_adapter *pi, u8 port, u8 *data, long length);
 static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata);
 static int ppc6_open(struct pi_adapter *pi);
 
@@ -478,26 +477,6 @@ static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
 
 //***************************************************************************
 
-static void ppc6_wr_port16_blk(struct pi_adapter *pi, u8 port, u8 *data, long length)
-{
-	length = length << 1;
-
-	ppc6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
-	ppc6_wr_data_byte(pi, (u8)length);
-	ppc6_wr_data_byte(pi, (u8)(length >> 8));
-	ppc6_wr_data_byte(pi, 0);
-
-	ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
-
-	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_WRITE);
-
-	ppc6_wr_data_blk(pi, data, length);
-
-	ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
-}
-
-//***************************************************************************
-
 static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata)
 {
 	ppc6_send_cmd(pi, REG_VERSION | ACCESS_REG | ACCESS_WRITE);
-- 
Ondrej Zary

[PATCH 20/32] pata_parport-bpck6: merge ppc6_rd_data_blk into bpck6_read_block

[Ondrej Zary]

ppc6_rd_data_blk is only called by bpck6_read_block. Merge
ppc6_rd_data_blk into bpck6_read_block.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 49 +++++++++++++++-
 drivers/ata/pata_parport/ppc6lnx.c | 91 ------------------------------
 2 files changed, 48 insertions(+), 92 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 1c04fcaba74a..d379603424ff 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -57,7 +57,54 @@ static void bpck6_read_block(struct pi_adapter *pi, char *buf, int len)
 
 	ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
 	ppc6_send_cmd(pi, ATA_REG_DATA | ACCESS_PORT | ACCESS_READ);
-	ppc6_rd_data_blk(pi, buf, len);
+
+	switch (mode_map[pi->mode]) {
+	case PPCMODE_UNI_SW:
+	case PPCMODE_UNI_FW:
+		while (len) {
+			u8 d;
+
+			parport_frob_control(pi->pardev->port,
+					PARPORT_CONTROL_STROBE,
+					PARPORT_CONTROL_INIT); /* DATA STROBE */
+			d = parport_read_status(pi->pardev->port);
+			d = ((d & 0x80) >> 1) | ((d & 0x38) >> 3);
+			parport_frob_control(pi->pardev->port,
+					PARPORT_CONTROL_STROBE,
+					PARPORT_CONTROL_STROBE);
+			d |= parport_read_status(pi->pardev->port) & 0xB8;
+			*buf++ = d;
+			len--;
+		}
+		break;
+	case PPCMODE_BI_SW:
+	case PPCMODE_BI_FW:
+		parport_data_reverse(pi->pardev->port);
+		while (len) {
+			parport_frob_control(pi->pardev->port,
+				PARPORT_CONTROL_STROBE,
+				PARPORT_CONTROL_STROBE | PARPORT_CONTROL_INIT);
+			*buf++ = parport_read_data(pi->pardev->port);
+			len--;
+		}
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE,
+					0);
+		parport_data_forward(pi->pardev->port);
+		break;
+	case PPCMODE_EPP_BYTE:
+		pi->pardev->port->ops->epp_read_data(pi->pardev->port, buf, len,
+						PARPORT_EPP_FAST_8);
+		break;
+	case PPCMODE_EPP_WORD:
+		pi->pardev->port->ops->epp_read_data(pi->pardev->port, buf, len,
+						PARPORT_EPP_FAST_16);
+		break;
+	case PPCMODE_EPP_DWORD:
+		pi->pardev->port->ops->epp_read_data(pi->pardev->port, buf, len,
+						PARPORT_EPP_FAST_32);
+		break;
+	}
+
 	ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
 }
 
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index d275de3f1ead..679261e19ac5 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -72,7 +72,6 @@ static void ppc6_deselect(struct pi_adapter *pi);
 static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd);
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
 static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
-static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count);
 static void ppc6_wait_for_fifo(struct pi_adapter *pi);
 static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count);
 static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata);
@@ -284,96 +283,6 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 
 //***************************************************************************
 
-static void ppc6_rd_data_blk(struct pi_adapter *pi, u8 *data, long count)
-{
-	switch (mode_map[pi->mode])
-	{
-		case PPCMODE_UNI_SW :
-		case PPCMODE_UNI_FW :
-		{
-			while(count)
-			{
-				u8 d;
-
-				parport_frob_control(pi->pardev->port,
-					PARPORT_CONTROL_STROBE, PARPORT_CONTROL_INIT);
-
-				// DELAY
-
-				d = parport_read_status(pi->pardev->port);
-
-				d = ((d & 0x80) >> 1) | ((d & 0x38) >> 3);
-
-				parport_frob_control(pi->pardev->port,
-					PARPORT_CONTROL_STROBE, PARPORT_CONTROL_STROBE);
-
-				// DELAY
-
-				d |= parport_read_status(pi->pardev->port) & 0xB8;
-
-				*data++ = d;
-				count--;
-			}
-
-			break;
-		}
-
-		case PPCMODE_BI_SW :
-		case PPCMODE_BI_FW :
-		{
-			parport_data_reverse(pi->pardev->port);
-
-			while(count)
-			{
-				parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE,
-					PARPORT_CONTROL_STROBE | PARPORT_CONTROL_INIT);
-
-				*data++ = parport_read_data(pi->pardev->port);
-				count--;
-			}
-
-			parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE, 0);
-
-			parport_data_forward(pi->pardev->port);
-
-			break;
-		}
-
-		case PPCMODE_EPP_BYTE :
-		{
-			// DELAY
-
-			pi->pardev->port->ops->epp_read_data(pi->pardev->port,
-					data, count, PARPORT_EPP_FAST_8);
-
-			break;
-		}
-
-		case PPCMODE_EPP_WORD :
-		{
-			// DELAY
-
-			pi->pardev->port->ops->epp_read_data(pi->pardev->port,
-					data, count, PARPORT_EPP_FAST_16);
-
-			break;
-		}
-
-		case PPCMODE_EPP_DWORD :
-		{
-			// DELAY
-
-			pi->pardev->port->ops->epp_read_data(pi->pardev->port,
-					data, count, PARPORT_EPP_FAST_32);
-
-			break;
-		}
-	}
-
-}
-
-//***************************************************************************
-
 static void ppc6_wait_for_fifo(struct pi_adapter *pi)
 {
 	int i;
-- 
Ondrej Zary

[PATCH 21/32] pata_parport-bpck6: merge ppc6_wr_data_blk into bpck6_write_block

[Ondrej Zary]

ppc6_wr_data_blk is only called by bpck6_write_block. Merge
ppc6_wr_data_blk into bpck6_write_block.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 58 ++++++++++++++++++-
 drivers/ata/pata_parport/ppc6lnx.c | 91 ------------------------------
 2 files changed, 57 insertions(+), 92 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index d379603424ff..27c1fa3bb336 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -37,6 +37,8 @@ static void bpck6_write_regr(struct pi_adapter *pi, int cont, int reg, int val)
 
 static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 {
+	u8 this, last;
+
 	ppc6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
 	ppc6_wr_data_byte(pi, (u8)len);
 	ppc6_wr_data_byte(pi, (u8)(len >> 8));
@@ -44,7 +46,61 @@ static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 
 	ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
 	ppc6_send_cmd(pi, ATA_REG_DATA | ACCESS_PORT | ACCESS_WRITE);
-	ppc6_wr_data_blk(pi, buf, len);
+
+	switch (mode_map[pi->mode]) {
+	case PPCMODE_UNI_SW:
+	case PPCMODE_BI_SW:
+		while (len--) {
+			parport_write_data(pi->pardev->port, *buf++);
+			parport_frob_control(pi->pardev->port, 0,
+							PARPORT_CONTROL_INIT);
+		}
+		break;
+	case PPCMODE_UNI_FW:
+	case PPCMODE_BI_FW:
+		ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_FASTWR);
+
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE,
+							PARPORT_CONTROL_STROBE);
+
+		last = *buf;
+
+		parport_write_data(pi->pardev->port, last);
+
+		while (len) {
+			this = *buf++;
+			len--;
+
+			if (this == last) {
+				parport_frob_control(pi->pardev->port, 0,
+							PARPORT_CONTROL_INIT);
+			} else {
+				parport_write_data(pi->pardev->port, this);
+				last = this;
+			}
+		}
+
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE,
+							0);
+		ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_FASTWR);
+		break;
+	case PPCMODE_EPP_BYTE:
+		pi->pardev->port->ops->epp_write_data(pi->pardev->port, buf,
+						len, PARPORT_EPP_FAST_8);
+		ppc6_wait_for_fifo(pi);
+		break;
+	case PPCMODE_EPP_WORD:
+		pi->pardev->port->ops->epp_write_data(pi->pardev->port, buf,
+						len, PARPORT_EPP_FAST_16);
+		ppc6_wait_for_fifo(pi);
+		break;
+	case PPCMODE_EPP_DWORD:
+		pi->pardev->port->ops->epp_write_data(pi->pardev->port, buf,
+						len, PARPORT_EPP_FAST_32);
+		ppc6_wait_for_fifo(pi);
+		break;
+	}
+
 	ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
 }
 
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 679261e19ac5..3ba920251c1c 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -73,7 +73,6 @@ static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd);
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
 static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
 static void ppc6_wait_for_fifo(struct pi_adapter *pi);
-static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count);
 static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata);
 static int ppc6_open(struct pi_adapter *pi);
 
@@ -296,96 +295,6 @@ static void ppc6_wait_for_fifo(struct pi_adapter *pi)
 
 //***************************************************************************
 
-static void ppc6_wr_data_blk(struct pi_adapter *pi, u8 *data, long count)
-{
-	switch (mode_map[pi->mode])
-	{
-		case PPCMODE_UNI_SW :
-		case PPCMODE_BI_SW :
-		{
-			while(count--)
-			{
-				parport_write_data(pi->pardev->port, *data++);
-
-				parport_frob_control(pi->pardev->port, 0, PARPORT_CONTROL_INIT);
-			}
-
-			break;
-		}
-
-		case PPCMODE_UNI_FW :
-		case PPCMODE_BI_FW :
-		{
-			u8 this, last;
-
-			ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_FASTWR);
-
-			parport_frob_control(pi->pardev->port,
-				PARPORT_CONTROL_STROBE, PARPORT_CONTROL_STROBE);
-
-			last = *data;
-
-			parport_write_data(pi->pardev->port, last);
-
-			while(count)
-			{
-				this = *data++;
-				count--;
-
-				if (this == last)
-				{
-					parport_frob_control(pi->pardev->port,
-						0, PARPORT_CONTROL_INIT);
-				}
-				else
-				{
-					parport_write_data(pi->pardev->port, this);
-
-					last = this;
-				}
-			}
-
-			parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE, 0);
-
-			ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_FASTWR);
-
-			break;
-		}
-
-		case PPCMODE_EPP_BYTE :
-		{
-			pi->pardev->port->ops->epp_write_data(pi->pardev->port,
-					data, count, PARPORT_EPP_FAST_8);
-
-			ppc6_wait_for_fifo(pi);
-
-			break;
-		}
-
-		case PPCMODE_EPP_WORD :
-		{
-			pi->pardev->port->ops->epp_write_data(pi->pardev->port,
-					data, count, PARPORT_EPP_FAST_16);
-
-			ppc6_wait_for_fifo(pi);
-
-			break;
-		}
-
-		case PPCMODE_EPP_DWORD :
-		{
-			pi->pardev->port->ops->epp_write_data(pi->pardev->port,
-					data, count, PARPORT_EPP_FAST_32);
-
-			ppc6_wait_for_fifo(pi);
-
-			break;
-		}
-	}
-}
-
-//***************************************************************************
-
 static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata)
 {
 	ppc6_send_cmd(pi, REG_VERSION | ACCESS_REG | ACCESS_WRITE);
-- 
Ondrej Zary

[PATCH 22/32] pata_parport-bpck6: move ppc6_wait_for_fifo to bpck6.c and rename

[Ondrej Zary]

Move ppc6_wait_for_fifo to bpck6.c and rename it to bpck6_wait_for_fifo

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 16 +++++++++++++---
 drivers/ata/pata_parport/ppc6lnx.c | 14 --------------
 2 files changed, 13 insertions(+), 17 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 27c1fa3bb336..1f976ee04ef2 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -35,6 +35,16 @@ static void bpck6_write_regr(struct pi_adapter *pi, int cont, int reg, int val)
 	ppc6_wr_data_byte(pi, val);
 }
 
+static void bpck6_wait_for_fifo(struct pi_adapter *pi)
+{
+	int i;
+
+	if (pi->private & fifo_wait) {
+		for (i = 0; i < 20; i++)
+			parport_read_status(pi->pardev->port);
+	}
+}
+
 static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 {
 	u8 this, last;
@@ -87,17 +97,17 @@ static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 	case PPCMODE_EPP_BYTE:
 		pi->pardev->port->ops->epp_write_data(pi->pardev->port, buf,
 						len, PARPORT_EPP_FAST_8);
-		ppc6_wait_for_fifo(pi);
+		bpck6_wait_for_fifo(pi);
 		break;
 	case PPCMODE_EPP_WORD:
 		pi->pardev->port->ops->epp_write_data(pi->pardev->port, buf,
 						len, PARPORT_EPP_FAST_16);
-		ppc6_wait_for_fifo(pi);
+		bpck6_wait_for_fifo(pi);
 		break;
 	case PPCMODE_EPP_DWORD:
 		pi->pardev->port->ops->epp_write_data(pi->pardev->port, buf,
 						len, PARPORT_EPP_FAST_32);
-		ppc6_wait_for_fifo(pi);
+		bpck6_wait_for_fifo(pi);
 		break;
 	}
 
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 3ba920251c1c..cd4fa31a5ff8 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -72,7 +72,6 @@ static void ppc6_deselect(struct pi_adapter *pi);
 static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd);
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
 static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
-static void ppc6_wait_for_fifo(struct pi_adapter *pi);
 static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata);
 static int ppc6_open(struct pi_adapter *pi);
 
@@ -282,19 +281,6 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 
 //***************************************************************************
 
-static void ppc6_wait_for_fifo(struct pi_adapter *pi)
-{
-	int i;
-
-	if (pi->private & fifo_wait)
-	{
-		for(i=0; i<20; i++)
-			parport_read_status(pi->pardev->port);
-	}
-}
-
-//***************************************************************************
-
 static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata)
 {
 	ppc6_send_cmd(pi, REG_VERSION | ACCESS_REG | ACCESS_WRITE);
-- 
Ondrej Zary

[PATCH 23/32] pata_parport-bpck6: move ppc6_wr_extout to bpck6.c and rename

[Ondrej Zary]

Move ppc6_wr_extout to bpck6.c and rename it to bpck6_wr_extout

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 10 ++++++++--
 drivers/ata/pata_parport/ppc6lnx.c | 10 ----------
 2 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 1f976ee04ef2..968c9f3297e3 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -174,18 +174,24 @@ static void bpck6_read_block(struct pi_adapter *pi, char *buf, int len)
 	ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
 }
 
+static void bpck6_wr_extout(struct pi_adapter *pi, u8 regdata)
+{
+	ppc6_send_cmd(pi, REG_VERSION | ACCESS_REG | ACCESS_WRITE);
+	ppc6_wr_data_byte(pi, (u8)((regdata & 0x03) << 6));
+}
+
 static void bpck6_connect(struct pi_adapter *pi)
 {
 	dev_dbg(&pi->dev, "connect\n");
 
 	ppc6_open(pi);
-	ppc6_wr_extout(pi, 0x3);
+	bpck6_wr_extout(pi, 0x3);
 }
 
 static void bpck6_disconnect(struct pi_adapter *pi)
 {
 	dev_dbg(&pi->dev, "disconnect\n");
-	ppc6_wr_extout(pi, 0x0);
+	bpck6_wr_extout(pi, 0x0);
 	ppc6_deselect(pi);
 }
 
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index cd4fa31a5ff8..931bf67fabb9 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -72,7 +72,6 @@ static void ppc6_deselect(struct pi_adapter *pi);
 static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd);
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
 static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
-static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata);
 static int ppc6_open(struct pi_adapter *pi);
 
 //***************************************************************************
@@ -281,15 +280,6 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 
 //***************************************************************************
 
-static void ppc6_wr_extout(struct pi_adapter *pi, u8 regdata)
-{
-	ppc6_send_cmd(pi, REG_VERSION | ACCESS_REG | ACCESS_WRITE);
-
-	ppc6_wr_data_byte(pi, (u8)((regdata & 0x03) << 6));
-}
-
-//***************************************************************************
-
 static int ppc6_open(struct pi_adapter *pi)
 {
 	int ret;
-- 
Ondrej Zary

[PATCH 24/32] pata_parport-bpck6: move ppc6_open to bpck6.c and rename

[Ondrej Zary]

Move ppc6_open to bpck6.c and rename it to bpck6_open

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 23 +++++++++++++++++++++--
 drivers/ata/pata_parport/ppc6lnx.c | 28 ----------------------------
 2 files changed, 21 insertions(+), 30 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 968c9f3297e3..02f16dedfd29 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -174,6 +174,25 @@ static void bpck6_read_block(struct pi_adapter *pi, char *buf, int len)
 	ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
 }
 
+static int bpck6_open(struct pi_adapter *pi)
+{
+	int ret = ppc6_select(pi);
+
+	if (ret == 0)
+		return ret;
+
+	pi->private = 0;
+
+	ppc6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
+	ppc6_wr_data_byte(pi, RAMSIZE_128K);
+
+	ppc6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
+	if ((ppc6_rd_data_byte(pi) & 0x3F) == 0x0C)
+		pi->private |= fifo_wait;
+
+	return ret;
+}
+
 static void bpck6_wr_extout(struct pi_adapter *pi, u8 regdata)
 {
 	ppc6_send_cmd(pi, REG_VERSION | ACCESS_REG | ACCESS_WRITE);
@@ -184,7 +203,7 @@ static void bpck6_connect(struct pi_adapter *pi)
 {
 	dev_dbg(&pi->dev, "connect\n");
 
-	ppc6_open(pi);
+	bpck6_open(pi);
 	bpck6_wr_extout(pi, 0x3);
 }
 
@@ -218,7 +237,7 @@ static int bpck6_probe_unit(struct pi_adapter *pi)
 	/*LOWER DOWN TO UNIDIRECTIONAL*/
 	pi->mode = 0;
 
-	out = ppc6_open(pi);
+	out = bpck6_open(pi);
 
 	dev_dbg(&pi->dev, "ppc_open returned %2x\n", out);
 
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 931bf67fabb9..a902ede5ecc5 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -72,7 +72,6 @@ static void ppc6_deselect(struct pi_adapter *pi);
 static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd);
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
 static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
-static int ppc6_open(struct pi_adapter *pi);
 
 //***************************************************************************
 
@@ -277,30 +276,3 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
 
 	return(data);
 }
-
-//***************************************************************************
-
-static int ppc6_open(struct pi_adapter *pi)
-{
-	int ret;
-
-	ret = ppc6_select(pi);
-
-	if (ret == 0)
-		return(ret);
-
-	pi->private = 0;
-
-	ppc6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
-	ppc6_wr_data_byte(pi, RAMSIZE_128K);
-
-	ppc6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
-
-	if ((ppc6_rd_data_byte(pi) & 0x3F) == 0x0C)
-		pi->private |= fifo_wait;
-
-	return(ret);
-}
-
-//***************************************************************************
-
-- 
Ondrej Zary

[PATCH 25/32] pata_parport-bpck6: merge ppc6_select into bpck6_open

[Ondrej Zary]

ppc6_select is only called by bpck6_open. Merge ppc6_select into
bpck6_open.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 68 ++++++++++++++++++++++++------
 drivers/ata/pata_parport/ppc6lnx.c | 66 -----------------------------
 2 files changed, 55 insertions(+), 79 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 02f16dedfd29..9b05e1c827cd 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -176,21 +176,63 @@ static void bpck6_read_block(struct pi_adapter *pi, char *buf, int len)
 
 static int bpck6_open(struct pi_adapter *pi)
 {
-	int ret = ppc6_select(pi);
-
-	if (ret == 0)
-		return ret;
-
-	pi->private = 0;
-
-	ppc6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
-	ppc6_wr_data_byte(pi, RAMSIZE_128K);
+	u8 i, j, k;
+
+	pi->saved_r0 = parport_read_data(pi->pardev->port);
+	pi->saved_r2 = parport_read_control(pi->pardev->port) & 0x5F;
+
+	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_SELECT,
+						PARPORT_CONTROL_SELECT);
+	if (pi->saved_r0 == 'b')
+		parport_write_data(pi->pardev->port, 'x');
+	parport_write_data(pi->pardev->port, 'b');
+	parport_write_data(pi->pardev->port, 'p');
+	parport_write_data(pi->pardev->port, pi->unit);
+	parport_write_data(pi->pardev->port, ~pi->unit);
+
+	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_SELECT, 0);
+	parport_write_control(pi->pardev->port, PARPORT_CONTROL_INIT);
+
+	i = mode_map[pi->mode] & 0x0C;
+	if (i == 0)
+		i = (mode_map[pi->mode] & 2) | 1;
+	parport_write_data(pi->pardev->port, i);
+
+	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_SELECT,
+						PARPORT_CONTROL_SELECT);
+	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_AUTOFD,
+						PARPORT_CONTROL_AUTOFD);
+
+	j = ((i & 0x08) << 4) | ((i & 0x07) << 3);
+	k = parport_read_status(pi->pardev->port) & 0xB8;
+	if (j == k) {
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_AUTOFD, 0);
+		k = (parport_read_status(pi->pardev->port) & 0xB8) ^ 0xB8;
+		if (j == k) {
+			if (i & 4)	// EPP
+				parport_frob_control(pi->pardev->port,
+					PARPORT_CONTROL_SELECT | PARPORT_CONTROL_INIT, 0);
+			else				// PPC/ECP
+				parport_frob_control(pi->pardev->port,
+					PARPORT_CONTROL_SELECT, 0);
+
+			pi->private = 0;
+
+			ppc6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
+			ppc6_wr_data_byte(pi, RAMSIZE_128K);
+
+			ppc6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
+			if ((ppc6_rd_data_byte(pi) & 0x3F) == 0x0C)
+				pi->private |= fifo_wait;
+
+			return 1;
+		}
+	}
 
-	ppc6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
-	if ((ppc6_rd_data_byte(pi) & 0x3F) == 0x0C)
-		pi->private |= fifo_wait;
+	parport_write_control(pi->pardev->port, pi->saved_r2);
+	parport_write_data(pi->pardev->port, pi->saved_r0);
 
-	return ret;
+	return 0; // FAIL
 }
 
 static void bpck6_wr_extout(struct pi_adapter *pi, u8 regdata)
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index a902ede5ecc5..16d0497dfeaa 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -67,7 +67,6 @@
 
 //***************************************************************************
 
-static int ppc6_select(struct pi_adapter *pi);
 static void ppc6_deselect(struct pi_adapter *pi);
 static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd);
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
@@ -78,71 +77,6 @@ static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
 int mode_map[] = { PPCMODE_UNI_FW, PPCMODE_BI_FW, PPCMODE_EPP_BYTE,
 		   PPCMODE_EPP_WORD, PPCMODE_EPP_DWORD };
 
-static int ppc6_select(struct pi_adapter *pi)
-{
-	u8 i, j, k;
-
-	pi->saved_r0 = parport_read_data(pi->pardev->port);
-
-	pi->saved_r2 = parport_read_control(pi->pardev->port) & 0x5F; // readback ctrl
-
-	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_SELECT, PARPORT_CONTROL_SELECT);
-
-	if (pi->saved_r0 == 'b')
-		parport_write_data(pi->pardev->port, 'x');
-
-	parport_write_data(pi->pardev->port, 'b');
-	parport_write_data(pi->pardev->port, 'p');
-	parport_write_data(pi->pardev->port, pi->unit);
-	parport_write_data(pi->pardev->port, ~pi->unit);
-
-	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_SELECT, 0);
-
-	parport_write_control(pi->pardev->port, PARPORT_CONTROL_INIT);
-
-	i = mode_map[pi->mode] & 0x0C;
-
-	if (i == 0)
-		i = (mode_map[pi->mode] & 2) | 1;
-
-	parport_write_data(pi->pardev->port, i);
-
-	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_SELECT, PARPORT_CONTROL_SELECT);
-
-	// DELAY
-
-	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_AUTOFD, PARPORT_CONTROL_AUTOFD);
-
-	j = ((i & 0x08) << 4) | ((i & 0x07) << 3);
-
-	k = parport_read_status(pi->pardev->port) & 0xB8;
-
-	if (j == k)
-	{
-		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_AUTOFD, 0);
-
-		k = (parport_read_status(pi->pardev->port) & 0xB8) ^ 0xB8;
-
-		if (j == k)
-		{
-			if (i & 4)	// EPP
-				parport_frob_control(pi->pardev->port,
-					PARPORT_CONTROL_SELECT | PARPORT_CONTROL_INIT, 0);
-			else				// PPC/ECP
-				parport_frob_control(pi->pardev->port,
-					PARPORT_CONTROL_SELECT, 0);
-
-			return(1);
-		}
-	}
-
-	parport_write_control(pi->pardev->port, pi->saved_r2);
-
-	parport_write_data(pi->pardev->port, pi->saved_r0);
-
-	return(0); // FAIL
-}
-
 //***************************************************************************
 
 static void ppc6_deselect(struct pi_adapter *pi)
-- 
Ondrej Zary

[PATCH 26/32] pata_parport-bpck6: move ppc6_deselect to bpck6.c and rename

[Ondrej Zary]

Move ppc6_deselect to bpck6.c and rename it to bpck6_deselect

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 19 +++++++++++++++++--
 drivers/ata/pata_parport/ppc6lnx.c | 19 -------------------
 2 files changed, 17 insertions(+), 21 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 9b05e1c827cd..46a91b04aed3 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -235,6 +235,21 @@ static int bpck6_open(struct pi_adapter *pi)
 	return 0; // FAIL
 }
 
+static void bpck6_deselect(struct pi_adapter *pi)
+{
+	if (mode_map[pi->mode] & 4)	// EPP
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_INIT,
+							PARPORT_CONTROL_INIT);
+	else								// PPC/ECP
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_SELECT,
+							PARPORT_CONTROL_SELECT);
+
+	parport_write_data(pi->pardev->port, pi->saved_r0);
+	parport_write_control(pi->pardev->port,
+			pi->saved_r2 | PARPORT_CONTROL_SELECT);
+	parport_write_control(pi->pardev->port, pi->saved_r2);
+}
+
 static void bpck6_wr_extout(struct pi_adapter *pi, u8 regdata)
 {
 	ppc6_send_cmd(pi, REG_VERSION | ACCESS_REG | ACCESS_WRITE);
@@ -253,7 +268,7 @@ static void bpck6_disconnect(struct pi_adapter *pi)
 {
 	dev_dbg(&pi->dev, "disconnect\n");
 	bpck6_wr_extout(pi, 0x0);
-	ppc6_deselect(pi);
+	bpck6_deselect(pi);
 }
 
 static int bpck6_test_port(struct pi_adapter *pi)   /* check for 8-bit port */
@@ -285,7 +300,7 @@ static int bpck6_probe_unit(struct pi_adapter *pi)
 
   	if(out)
  	{
-		ppc6_deselect(pi);
+		bpck6_deselect(pi);
 		dev_dbg(&pi->dev, "leaving probe\n");
 		pi->mode = saved_mode;
                return(1);
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 16d0497dfeaa..6c34bbbdf6db 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -67,7 +67,6 @@
 
 //***************************************************************************
 
-static void ppc6_deselect(struct pi_adapter *pi);
 static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd);
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
 static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
@@ -79,24 +78,6 @@ int mode_map[] = { PPCMODE_UNI_FW, PPCMODE_BI_FW, PPCMODE_EPP_BYTE,
 
 //***************************************************************************
 
-static void ppc6_deselect(struct pi_adapter *pi)
-{
-	if (mode_map[pi->mode] & 4)	// EPP
-		parport_frob_control(pi->pardev->port,
-			PARPORT_CONTROL_INIT, PARPORT_CONTROL_INIT);
-	else								// PPC/ECP
-		parport_frob_control(pi->pardev->port,
-			PARPORT_CONTROL_SELECT, PARPORT_CONTROL_SELECT);
-
-	parport_write_data(pi->pardev->port, pi->saved_r0);
-
-	parport_write_control(pi->pardev->port, (pi->saved_r2 | PARPORT_CONTROL_SELECT));
-
-	parport_write_control(pi->pardev->port, pi->saved_r2);
-}
-
-//***************************************************************************
-
 static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
 {
 	switch (mode_map[pi->mode])
-- 
Ondrej Zary

[PATCH 27/32] pata_parport-bpck6: move ppc6_send_cmd to bpck6.c and rename

[Ondrej Zary]

Move ppc6_send_cmd to bpck6.c and rename it to bpck6_send_cmd

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 48 ++++++++++++++++++++----------
 drivers/ata/pata_parport/ppc6lnx.c | 29 ------------------
 2 files changed, 33 insertions(+), 44 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 46a91b04aed3..32dc9e61e80c 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -19,11 +19,29 @@
 #include "pata_parport.h"
 #include "ppc6lnx.c"
 
+static void bpck6_send_cmd(struct pi_adapter *pi, u8 cmd)
+{
+	switch (mode_map[pi->mode]) {
+	case PPCMODE_UNI_SW:
+	case PPCMODE_UNI_FW:
+	case PPCMODE_BI_SW:
+	case PPCMODE_BI_FW:
+		parport_write_data(pi->pardev->port, cmd);
+		parport_frob_control(pi->pardev->port, 0, PARPORT_CONTROL_AUTOFD);
+		break;
+	case PPCMODE_EPP_BYTE:
+	case PPCMODE_EPP_WORD:
+	case PPCMODE_EPP_DWORD:
+		pi->pardev->port->ops->epp_write_addr(pi->pardev->port, &cmd, 1, 0);
+		break;
+	}
+}
+
 static int bpck6_read_regr(struct pi_adapter *pi, int cont, int reg)
 {
 	u8 port = cont ? reg | 8 : reg;
 
-	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_READ);
+	bpck6_send_cmd(pi, port | ACCESS_PORT | ACCESS_READ);
 	return ppc6_rd_data_byte(pi);
 }
 
@@ -31,7 +49,7 @@ static void bpck6_write_regr(struct pi_adapter *pi, int cont, int reg, int val)
 {
 	u8 port = cont ? reg | 8 : reg;
 
-	ppc6_send_cmd(pi, port | ACCESS_PORT | ACCESS_WRITE);
+	bpck6_send_cmd(pi, port | ACCESS_PORT | ACCESS_WRITE);
 	ppc6_wr_data_byte(pi, val);
 }
 
@@ -49,13 +67,13 @@ static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 {
 	u8 this, last;
 
-	ppc6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
+	bpck6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
 	ppc6_wr_data_byte(pi, (u8)len);
 	ppc6_wr_data_byte(pi, (u8)(len >> 8));
 	ppc6_wr_data_byte(pi, 0);
 
-	ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
-	ppc6_send_cmd(pi, ATA_REG_DATA | ACCESS_PORT | ACCESS_WRITE);
+	bpck6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
+	bpck6_send_cmd(pi, ATA_REG_DATA | ACCESS_PORT | ACCESS_WRITE);
 
 	switch (mode_map[pi->mode]) {
 	case PPCMODE_UNI_SW:
@@ -68,7 +86,7 @@ static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 		break;
 	case PPCMODE_UNI_FW:
 	case PPCMODE_BI_FW:
-		ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_FASTWR);
+		bpck6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_FASTWR);
 
 		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE,
 							PARPORT_CONTROL_STROBE);
@@ -92,7 +110,7 @@ static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 
 		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE,
 							0);
-		ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_FASTWR);
+		bpck6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_FASTWR);
 		break;
 	case PPCMODE_EPP_BYTE:
 		pi->pardev->port->ops->epp_write_data(pi->pardev->port, buf,
@@ -111,18 +129,18 @@ static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 		break;
 	}
 
-	ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
+	bpck6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
 }
 
 static void bpck6_read_block(struct pi_adapter *pi, char *buf, int len)
 {
-	ppc6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
+	bpck6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
 	ppc6_wr_data_byte(pi, (u8)len);
 	ppc6_wr_data_byte(pi, (u8)(len >> 8));
 	ppc6_wr_data_byte(pi, 0);
 
-	ppc6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
-	ppc6_send_cmd(pi, ATA_REG_DATA | ACCESS_PORT | ACCESS_READ);
+	bpck6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
+	bpck6_send_cmd(pi, ATA_REG_DATA | ACCESS_PORT | ACCESS_READ);
 
 	switch (mode_map[pi->mode]) {
 	case PPCMODE_UNI_SW:
@@ -171,7 +189,7 @@ static void bpck6_read_block(struct pi_adapter *pi, char *buf, int len)
 		break;
 	}
 
-	ppc6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
+	bpck6_send_cmd(pi, CMD_PREFIX_RESET | PREFIX_IO16 | PREFIX_BLK);
 }
 
 static int bpck6_open(struct pi_adapter *pi)
@@ -218,10 +236,10 @@ static int bpck6_open(struct pi_adapter *pi)
 
 			pi->private = 0;
 
-			ppc6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
+			bpck6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
 			ppc6_wr_data_byte(pi, RAMSIZE_128K);
 
-			ppc6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
+			bpck6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
 			if ((ppc6_rd_data_byte(pi) & 0x3F) == 0x0C)
 				pi->private |= fifo_wait;
 
@@ -252,7 +270,7 @@ static void bpck6_deselect(struct pi_adapter *pi)
 
 static void bpck6_wr_extout(struct pi_adapter *pi, u8 regdata)
 {
-	ppc6_send_cmd(pi, REG_VERSION | ACCESS_REG | ACCESS_WRITE);
+	bpck6_send_cmd(pi, REG_VERSION | ACCESS_REG | ACCESS_WRITE);
 	ppc6_wr_data_byte(pi, (u8)((regdata & 0x03) << 6));
 }
 
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 6c34bbbdf6db..d3c3968fbfc8 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -67,7 +67,6 @@
 
 //***************************************************************************
 
-static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd);
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
 static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
 
@@ -78,34 +77,6 @@ int mode_map[] = { PPCMODE_UNI_FW, PPCMODE_BI_FW, PPCMODE_EPP_BYTE,
 
 //***************************************************************************
 
-static void ppc6_send_cmd(struct pi_adapter *pi, u8 cmd)
-{
-	switch (mode_map[pi->mode])
-	{
-		case PPCMODE_UNI_SW :
-		case PPCMODE_UNI_FW :
-		case PPCMODE_BI_SW :
-		case PPCMODE_BI_FW :
-		{
-			parport_write_data(pi->pardev->port, cmd);
-			parport_frob_control(pi->pardev->port, 0, PARPORT_CONTROL_AUTOFD);
-
-			break;
-		}
-
-		case PPCMODE_EPP_BYTE :
-		case PPCMODE_EPP_WORD :
-		case PPCMODE_EPP_DWORD :
-		{
-			pi->pardev->port->ops->epp_write_addr(pi->pardev->port, &cmd, 1, 0);
-
-			break;
-		}
-	}
-}
-
-//***************************************************************************
-
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 {
 	switch (mode_map[pi->mode])
-- 
Ondrej Zary

[PATCH 28/32] pata_parport-bpck6: move ppc6_rd_data_byte to bpck6.c and rename

[Ondrej Zary]

Move ppc6_rd_data_byte to bpck6.c and rename it to bpck6_rd_data_byte

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 38 ++++++++++++++++++-
 drivers/ata/pata_parport/ppc6lnx.c | 61 ------------------------------
 2 files changed, 36 insertions(+), 63 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 32dc9e61e80c..064696b6d68f 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -37,12 +37,46 @@ static void bpck6_send_cmd(struct pi_adapter *pi, u8 cmd)
 	}
 }
 
+static u8 bpck6_rd_data_byte(struct pi_adapter *pi)
+{
+	u8 data = 0;
+
+	switch (mode_map[pi->mode]) {
+	case PPCMODE_UNI_SW:
+	case PPCMODE_UNI_FW:
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE,
+							PARPORT_CONTROL_INIT);
+		data = parport_read_status(pi->pardev->port);
+		data = ((data & 0x80) >> 1) | ((data & 0x38) >> 3);
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE,
+							PARPORT_CONTROL_STROBE);
+		data |= parport_read_status(pi->pardev->port) & 0xB8;
+		break;
+	case PPCMODE_BI_SW:
+	case PPCMODE_BI_FW:
+		parport_data_reverse(pi->pardev->port);
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE,
+				PARPORT_CONTROL_STROBE | PARPORT_CONTROL_INIT);
+		data = parport_read_data(pi->pardev->port);
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE, 0);
+		parport_data_forward(pi->pardev->port);
+		break;
+	case PPCMODE_EPP_BYTE:
+	case PPCMODE_EPP_WORD:
+	case PPCMODE_EPP_DWORD:
+		pi->pardev->port->ops->epp_read_data(pi->pardev->port, &data, 1, 0);
+		break;
+	}
+
+	return data;
+}
+
 static int bpck6_read_regr(struct pi_adapter *pi, int cont, int reg)
 {
 	u8 port = cont ? reg | 8 : reg;
 
 	bpck6_send_cmd(pi, port | ACCESS_PORT | ACCESS_READ);
-	return ppc6_rd_data_byte(pi);
+	return bpck6_rd_data_byte(pi);
 }
 
 static void bpck6_write_regr(struct pi_adapter *pi, int cont, int reg, int val)
@@ -240,7 +274,7 @@ static int bpck6_open(struct pi_adapter *pi)
 			ppc6_wr_data_byte(pi, RAMSIZE_128K);
 
 			bpck6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
-			if ((ppc6_rd_data_byte(pi) & 0x3F) == 0x0C)
+			if ((bpck6_rd_data_byte(pi) & 0x3F) == 0x0C)
 				pi->private |= fifo_wait;
 
 			return 1;
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index d3c3968fbfc8..838af60a0d4d 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -68,7 +68,6 @@
 //***************************************************************************
 
 static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
-static u8 ppc6_rd_data_byte(struct pi_adapter *pi);
 
 //***************************************************************************
 
@@ -102,63 +101,3 @@ static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
 		}
 	}
 }
-
-//***************************************************************************
-
-static u8 ppc6_rd_data_byte(struct pi_adapter *pi)
-{
-	u8 data = 0;
-
-	switch (mode_map[pi->mode])
-	{
-		case PPCMODE_UNI_SW :
-		case PPCMODE_UNI_FW :
-		{
-			parport_frob_control(pi->pardev->port,
-				PARPORT_CONTROL_STROBE, PARPORT_CONTROL_INIT);
-
-			// DELAY
-
-			data = parport_read_status(pi->pardev->port);
-
-			data = ((data & 0x80) >> 1) | ((data & 0x38) >> 3);
-
-			parport_frob_control(pi->pardev->port,
-				PARPORT_CONTROL_STROBE, PARPORT_CONTROL_STROBE);
-
-			// DELAY
-
-			data |= parport_read_status(pi->pardev->port) & 0xB8;
-
-			break;
-		}
-
-		case PPCMODE_BI_SW :
-		case PPCMODE_BI_FW :
-		{
-			parport_data_reverse(pi->pardev->port);
-
-			parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE,
-				PARPORT_CONTROL_STROBE | PARPORT_CONTROL_INIT);
-
-			data = parport_read_data(pi->pardev->port);
-
-			parport_frob_control(pi->pardev->port, PARPORT_CONTROL_STROBE, 0);
-
-			parport_data_forward(pi->pardev->port);
-
-			break;
-		}
-
-		case PPCMODE_EPP_BYTE :
-		case PPCMODE_EPP_WORD :
-		case PPCMODE_EPP_DWORD :
-		{
-			pi->pardev->port->ops->epp_read_data(pi->pardev->port, &data, 1, 0);
-
-			break;
-		}
-	}
-
-	return(data);
-}
-- 
Ondrej Zary

[PATCH 29/32] pata_parport-bpck6: move ppc6_wr_data_byte to bpck6.c and rename

[Ondrej Zary]

Move ppc6_wr_data_byte to bpck6.c and rename it to bpck6_wr_data_byte

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 36 ++++++++++++++++++++++--------
 drivers/ata/pata_parport/ppc6lnx.c | 32 --------------------------
 2 files changed, 27 insertions(+), 41 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 064696b6d68f..f6d0916577b3 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -71,6 +71,24 @@ static u8 bpck6_rd_data_byte(struct pi_adapter *pi)
 	return data;
 }
 
+static void bpck6_wr_data_byte(struct pi_adapter *pi, u8 data)
+{
+	switch (mode_map[pi->mode]) {
+	case PPCMODE_UNI_SW:
+	case PPCMODE_UNI_FW:
+	case PPCMODE_BI_SW:
+	case PPCMODE_BI_FW:
+		parport_write_data(pi->pardev->port, data);
+		parport_frob_control(pi->pardev->port, 0, PARPORT_CONTROL_INIT);
+		break;
+	case PPCMODE_EPP_BYTE:
+	case PPCMODE_EPP_WORD:
+	case PPCMODE_EPP_DWORD:
+		pi->pardev->port->ops->epp_write_data(pi->pardev->port, &data, 1, 0);
+		break;
+	}
+}
+
 static int bpck6_read_regr(struct pi_adapter *pi, int cont, int reg)
 {
 	u8 port = cont ? reg | 8 : reg;
@@ -84,7 +102,7 @@ static void bpck6_write_regr(struct pi_adapter *pi, int cont, int reg, int val)
 	u8 port = cont ? reg | 8 : reg;
 
 	bpck6_send_cmd(pi, port | ACCESS_PORT | ACCESS_WRITE);
-	ppc6_wr_data_byte(pi, val);
+	bpck6_wr_data_byte(pi, val);
 }
 
 static void bpck6_wait_for_fifo(struct pi_adapter *pi)
@@ -102,9 +120,9 @@ static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 	u8 this, last;
 
 	bpck6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
-	ppc6_wr_data_byte(pi, (u8)len);
-	ppc6_wr_data_byte(pi, (u8)(len >> 8));
-	ppc6_wr_data_byte(pi, 0);
+	bpck6_wr_data_byte(pi, (u8)len);
+	bpck6_wr_data_byte(pi, (u8)(len >> 8));
+	bpck6_wr_data_byte(pi, 0);
 
 	bpck6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
 	bpck6_send_cmd(pi, ATA_REG_DATA | ACCESS_PORT | ACCESS_WRITE);
@@ -169,9 +187,9 @@ static void bpck6_write_block(struct pi_adapter *pi, char *buf, int len)
 static void bpck6_read_block(struct pi_adapter *pi, char *buf, int len)
 {
 	bpck6_send_cmd(pi, REG_BLKSIZE | ACCESS_REG | ACCESS_WRITE);
-	ppc6_wr_data_byte(pi, (u8)len);
-	ppc6_wr_data_byte(pi, (u8)(len >> 8));
-	ppc6_wr_data_byte(pi, 0);
+	bpck6_wr_data_byte(pi, (u8)len);
+	bpck6_wr_data_byte(pi, (u8)(len >> 8));
+	bpck6_wr_data_byte(pi, 0);
 
 	bpck6_send_cmd(pi, CMD_PREFIX_SET | PREFIX_IO16 | PREFIX_BLK);
 	bpck6_send_cmd(pi, ATA_REG_DATA | ACCESS_PORT | ACCESS_READ);
@@ -271,7 +289,7 @@ static int bpck6_open(struct pi_adapter *pi)
 			pi->private = 0;
 
 			bpck6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
-			ppc6_wr_data_byte(pi, RAMSIZE_128K);
+			bpck6_wr_data_byte(pi, RAMSIZE_128K);
 
 			bpck6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
 			if ((bpck6_rd_data_byte(pi) & 0x3F) == 0x0C)
@@ -305,7 +323,7 @@ static void bpck6_deselect(struct pi_adapter *pi)
 static void bpck6_wr_extout(struct pi_adapter *pi, u8 regdata)
 {
 	bpck6_send_cmd(pi, REG_VERSION | ACCESS_REG | ACCESS_WRITE);
-	ppc6_wr_data_byte(pi, (u8)((regdata & 0x03) << 6));
+	bpck6_wr_data_byte(pi, (u8)((regdata & 0x03) << 6));
 }
 
 static void bpck6_connect(struct pi_adapter *pi)
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 838af60a0d4d..9a763cbda130 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -67,37 +67,5 @@
 
 //***************************************************************************
 
-static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data);
-
-//***************************************************************************
-
 int mode_map[] = { PPCMODE_UNI_FW, PPCMODE_BI_FW, PPCMODE_EPP_BYTE,
 		   PPCMODE_EPP_WORD, PPCMODE_EPP_DWORD };
-
-//***************************************************************************
-
-static void ppc6_wr_data_byte(struct pi_adapter *pi, u8 data)
-{
-	switch (mode_map[pi->mode])
-	{
-		case PPCMODE_UNI_SW :
-		case PPCMODE_UNI_FW :
-		case PPCMODE_BI_SW :
-		case PPCMODE_BI_FW :
-		{
-			parport_write_data(pi->pardev->port, data);
-			parport_frob_control(pi->pardev->port, 0, PARPORT_CONTROL_INIT);
-
-			break;
-		}
-
-		case PPCMODE_EPP_BYTE :
-		case PPCMODE_EPP_WORD :
-		case PPCMODE_EPP_DWORD :
-		{
-			pi->pardev->port->ops->epp_write_data(pi->pardev->port, &data, 1, 0);
-
-			break;
-		}
-	}
-}
-- 
Ondrej Zary

[PATCH 30/32] pata_parport-bpck6: move defines and mode_map to bpck6.c

[Ondrej Zary]

Move all register definitions and mode_map to bpck6.c

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   | 44 ++++++++++++++++++++++++
 drivers/ata/pata_parport/ppc6lnx.c | 54 ------------------------------
 2 files changed, 44 insertions(+), 54 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index f6d0916577b3..0ed6a97ab04f 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -19,6 +19,50 @@
 #include "pata_parport.h"
 #include "ppc6lnx.c"
 
+/* 60772 Commands */
+#define ACCESS_REG		0x00
+#define ACCESS_PORT		0x40
+
+#define ACCESS_READ		0x00
+#define ACCESS_WRITE		0x20
+
+/* 60772 Command Prefix */
+#define CMD_PREFIX_SET		0xe0	// Special command that modifies next command's operation
+#define CMD_PREFIX_RESET	0xc0	// Resets current cmd modifier reg bits
+ #define PREFIX_IO16		0x01	// perform 16-bit wide I/O
+ #define PREFIX_FASTWR		0x04	// enable PPC mode fast-write
+ #define PREFIX_BLK		0x08	// enable block transfer mode
+
+/* 60772 Registers */
+#define REG_STATUS		0x00	// status register
+ #define STATUS_IRQA		0x01	// Peripheral IRQA line
+ #define STATUS_EEPROM_DO	0x40	// Serial EEPROM data bit
+#define REG_VERSION		0x01	// PPC version register (read)
+#define REG_HWCFG		0x02	// Hardware Config register
+#define REG_RAMSIZE		0x03	// Size of RAM Buffer
+ #define RAMSIZE_128K		0x02
+#define REG_EEPROM		0x06	// EEPROM control register
+ #define EEPROM_SK		0x01	// eeprom SK bit
+ #define EEPROM_DI		0x02	// eeprom DI bit
+ #define EEPROM_CS		0x04	// eeprom CS bit
+ #define EEPROM_EN		0x08	// eeprom output enable
+#define REG_BLKSIZE		0x08	// Block transfer len (24 bit)
+
+/* flags */
+#define fifo_wait		0x10
+
+/* DONT CHANGE THESE LEST YOU BREAK EVERYTHING - BIT FIELD DEPENDENCIES */
+#define PPCMODE_UNI_SW		0
+#define PPCMODE_UNI_FW		1
+#define PPCMODE_BI_SW		2
+#define PPCMODE_BI_FW		3
+#define PPCMODE_EPP_BYTE	4
+#define PPCMODE_EPP_WORD	5
+#define PPCMODE_EPP_DWORD	6
+
+int mode_map[] = { PPCMODE_UNI_FW, PPCMODE_BI_FW, PPCMODE_EPP_BYTE,
+		   PPCMODE_EPP_WORD, PPCMODE_EPP_DWORD };
+
 static void bpck6_send_cmd(struct pi_adapter *pi, u8 cmd)
 {
 	switch (mode_map[pi->mode]) {
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
index 9a763cbda130..e72b1842adda 100644
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ b/drivers/ata/pata_parport/ppc6lnx.c
@@ -15,57 +15,3 @@
 
 //***************************************************************************
 
-//  60772 Commands
-
-#define ACCESS_REG				0x00
-#define ACCESS_PORT				0x40
-
-#define ACCESS_READ				0x00
-#define ACCESS_WRITE			0x20
-
-//  60772 Command Prefix
-
-#define CMD_PREFIX_SET		0xe0		// Special command that modifies the next command's operation
-#define CMD_PREFIX_RESET	0xc0		// Resets current cmd modifier reg bits
- #define PREFIX_IO16			0x01		// perform 16-bit wide I/O
- #define PREFIX_FASTWR		0x04		// enable PPC mode fast-write
- #define PREFIX_BLK				0x08		// enable block transfer mode
-
-// 60772 Registers
-
-#define REG_STATUS				0x00		// status register
- #define STATUS_IRQA			0x01		// Peripheral IRQA line
- #define STATUS_EEPROM_DO	0x40		// Serial EEPROM data bit
-#define REG_VERSION				0x01		// PPC version register (read)
-#define REG_HWCFG					0x02		// Hardware Config register
-#define REG_RAMSIZE				0x03		// Size of RAM Buffer
- #define RAMSIZE_128K			0x02
-#define REG_EEPROM				0x06		// EEPROM control register
- #define EEPROM_SK				0x01		// eeprom SK bit
- #define EEPROM_DI				0x02		// eeprom DI bit
- #define EEPROM_CS				0x04		// eeprom CS bit
- #define EEPROM_EN				0x08		// eeprom output enable
-#define REG_BLKSIZE				0x08		// Block transfer len (24 bit)
-
-//***************************************************************************
-
-// ppc_flags
-
-#define fifo_wait					0x10
-
-//***************************************************************************
-
-// DONT CHANGE THESE LEST YOU BREAK EVERYTHING - BIT FIELD DEPENDENCIES
-
-#define PPCMODE_UNI_SW		0
-#define PPCMODE_UNI_FW		1
-#define PPCMODE_BI_SW			2
-#define PPCMODE_BI_FW			3
-#define PPCMODE_EPP_BYTE	4
-#define PPCMODE_EPP_WORD	5
-#define PPCMODE_EPP_DWORD	6
-
-//***************************************************************************
-
-int mode_map[] = { PPCMODE_UNI_FW, PPCMODE_BI_FW, PPCMODE_EPP_BYTE,
-		   PPCMODE_EPP_WORD, PPCMODE_EPP_DWORD };
-- 
Ondrej Zary

[PATCH 31/32] pata_parport-bpck6: delete ppc6lnx.c

[Ondrej Zary]

Remove now empty ppc6lnx.c.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c   |  1 -
 drivers/ata/pata_parport/ppc6lnx.c | 17 -----------------
 2 files changed, 18 deletions(-)
 delete mode 100644 drivers/ata/pata_parport/ppc6lnx.c

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 0ed6a97ab04f..53d0ad1d6e89 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -17,7 +17,6 @@
 #include <linux/types.h>
 #include <linux/parport.h>
 #include "pata_parport.h"
-#include "ppc6lnx.c"
 
 /* 60772 Commands */
 #define ACCESS_REG		0x00
diff --git a/drivers/ata/pata_parport/ppc6lnx.c b/drivers/ata/pata_parport/ppc6lnx.c
deleted file mode 100644
index e72b1842adda..000000000000
--- a/drivers/ata/pata_parport/ppc6lnx.c
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
-	ppc6lnx.c (c) 2001 Micro Solutions Inc.
-		Released under the terms of the GNU General Public license
-
-	ppc6lnx.c  is a par of the protocol driver for the Micro Solutions
-		"BACKPACK" parallel port IDE adapter
-		(Works on Series 6 drives)
-
-*/
-
-//***************************************************************************
-
-// PPC 6 Code in C sanitized for LINUX
-// Original x86 ASM by Ron, Converted to C by Clive
-
-//***************************************************************************
-
-- 
Ondrej Zary

Re: [PATCH 31/32] pata_parport-bpck6: delete ppc6lnx.c

[Sergey Shtylyov]

On 3/8/23 1:46 AM, Ondrej Zary wrote:

> Remove now empty ppc6lnx.c.
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>

[...]

Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>

MBR, Sergey

[PATCH 32/32] pata_parport-bpck6: reduce indents in bpck6_open

[Ondrej Zary]

Reverse error handling conditions to reduce code indents in bpck6_open.

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/bpck6.c | 48 +++++++++++++++++---------------
 1 file changed, 25 insertions(+), 23 deletions(-)

diff --git a/drivers/ata/pata_parport/bpck6.c b/drivers/ata/pata_parport/bpck6.c
index 53d0ad1d6e89..295dbe5cdaa4 100644
--- a/drivers/ata/pata_parport/bpck6.c
+++ b/drivers/ata/pata_parport/bpck6.c
@@ -318,30 +318,32 @@ static int bpck6_open(struct pi_adapter *pi)
 
 	j = ((i & 0x08) << 4) | ((i & 0x07) << 3);
 	k = parport_read_status(pi->pardev->port) & 0xB8;
-	if (j == k) {
-		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_AUTOFD, 0);
-		k = (parport_read_status(pi->pardev->port) & 0xB8) ^ 0xB8;
-		if (j == k) {
-			if (i & 4)	// EPP
-				parport_frob_control(pi->pardev->port,
-					PARPORT_CONTROL_SELECT | PARPORT_CONTROL_INIT, 0);
-			else				// PPC/ECP
-				parport_frob_control(pi->pardev->port,
-					PARPORT_CONTROL_SELECT, 0);
-
-			pi->private = 0;
-
-			bpck6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
-			bpck6_wr_data_byte(pi, RAMSIZE_128K);
-
-			bpck6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
-			if ((bpck6_rd_data_byte(pi) & 0x3F) == 0x0C)
-				pi->private |= fifo_wait;
-
-			return 1;
-		}
-	}
+	if (j != k)
+		goto fail;
+
+	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_AUTOFD, 0);
+	k = (parport_read_status(pi->pardev->port) & 0xB8) ^ 0xB8;
+	if (j != k)
+		goto fail;
+
+	if (i & 4)	// EPP
+		parport_frob_control(pi->pardev->port,
+			PARPORT_CONTROL_SELECT | PARPORT_CONTROL_INIT, 0);
+	else				// PPC/ECP
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_SELECT, 0);
+
+	pi->private = 0;
+
+	bpck6_send_cmd(pi, ACCESS_REG | ACCESS_WRITE | REG_RAMSIZE);
+	bpck6_wr_data_byte(pi, RAMSIZE_128K);
+
+	bpck6_send_cmd(pi, ACCESS_REG | ACCESS_READ | REG_VERSION);
+	if ((bpck6_rd_data_byte(pi) & 0x3F) == 0x0C)
+		pi->private |= fifo_wait;
+
+	return 1;
 
+fail:
 	parport_write_control(pi->pardev->port, pi->saved_r2);
 	parport_write_data(pi->pardev->port, pi->saved_r0);
 
-- 
Ondrej Zary

Re: [PATCH 00/32] pata_parport-bpck6: rework bpck6 protocol driver

[Sergey Shtylyov]

Hello!

On 3/8/23 1:45 AM, Ondrej Zary wrote:

> This patch series simplifies bpck6 code, removing ppc6lnx.c file to match
> the simplicity of other protocol drivers. It also converts the direct
> port I/O access to paraport access functions. This conversion revealed that
> there's no 8-bit and 16-bit EPP support in parport_pc so patch 11 implements
> that.
> 
> Tested with Backpack CD-RW 222011 and CD-RW 19350.
> 
> Signed-off-by: Ondrej Zary <linux@zary.sk>
> ---
>  drivers/ata/pata_parport/bpck6.c   | 452 +++++++++++++++++++++++++++--------
>  drivers/ata/pata_parport/ppc6lnx.c | 726 ---------------------------------------------------------
>  drivers/parport/parport_pc.c       |  20 +-
>  include/uapi/linux/parport.h       |   3 +
>  4 files changed, 370 insertions(+), 831 deletions(-)

   OK, it's finally clear I can't keep up with reviewing 32 patches posted
at once...  Luckily, all those patches seem to be dealing with parallel port
control), not the PATA control! Of course, when I volunteered to review the
PATA driver patches, I didn't expect such patch volumes -- I mostly expected
some odd fixes, not a massive driver rework... :-/

MBR, Sergey

Re: [PATCH 00/32] pata_parport-bpck6: rework bpck6 protocol driver

[Ondrej Zary]

On Saturday 11 March 2023 21:00:01 Sergey Shtylyov wrote:
> Hello!
> 
> On 3/8/23 1:45 AM, Ondrej Zary wrote:
> 
> > This patch series simplifies bpck6 code, removing ppc6lnx.c file to match
> > the simplicity of other protocol drivers. It also converts the direct
> > port I/O access to paraport access functions. This conversion revealed that
> > there's no 8-bit and 16-bit EPP support in parport_pc so patch 11 implements
> > that.
> > 
> > Tested with Backpack CD-RW 222011 and CD-RW 19350.
> > 
> > Signed-off-by: Ondrej Zary <linux@zary.sk>
> > ---
> >  drivers/ata/pata_parport/bpck6.c   | 452 +++++++++++++++++++++++++++--------
> >  drivers/ata/pata_parport/ppc6lnx.c | 726 ---------------------------------------------------------
> >  drivers/parport/parport_pc.c       |  20 +-
> >  include/uapi/linux/parport.h       |   3 +
> >  4 files changed, 370 insertions(+), 831 deletions(-)
> 
>    OK, it's finally clear I can't keep up with reviewing 32 patches posted
> at once...  Luckily, all those patches seem to be dealing with parallel port
> control), not the PATA control! Of course, when I volunteered to review the
> PATA driver patches, I didn't expect such patch volumes -- I mostly expected
> some odd fixes, not a massive driver rework... :-/

So you're going to review the (P)ATA parts (if any) only.
Maybe Sudip (as parport maintainer) could review the parallel port parts?

-- 
Ondrej Zary

Re: [PATCH 00/32] pata_parport-bpck6: rework bpck6 protocol driver

[Sergey Shtylyov]

On 3/18/23 9:55 PM, Ondrej Zary wrote:

>>> This patch series simplifies bpck6 code, removing ppc6lnx.c file to match
>>> the simplicity of other protocol drivers. It also converts the direct
>>> port I/O access to paraport access functions. This conversion revealed that
>>> there's no 8-bit and 16-bit EPP support in parport_pc so patch 11 implements
>>> that.
>>>
>>> Tested with Backpack CD-RW 222011 and CD-RW 19350.
>>>
>>> Signed-off-by: Ondrej Zary <linux@zary.sk>
>>> ---
>>>  drivers/ata/pata_parport/bpck6.c   | 452 +++++++++++++++++++++++++++--------
>>>  drivers/ata/pata_parport/ppc6lnx.c | 726 ---------------------------------------------------------
>>>  drivers/parport/parport_pc.c       |  20 +-
>>>  include/uapi/linux/parport.h       |   3 +
>>>  4 files changed, 370 insertions(+), 831 deletions(-)
>>
>>    OK, it's finally clear I can't keep up with reviewing 32 patches posted
>> at once...  Luckily, all those patches seem to be dealing with parallel port
>> control), not the PATA control! Of course, when I volunteered to review the
>> PATA driver patches, I didn't expect such patch volumes -- I mostly expected
>> some odd fixes, not a massive driver rework... :-/
> 
> So you're going to review the (P)ATA parts (if any) only.

   I saw no PATA parts in this patcheset...

> Maybe Sudip (as parport maintainer) could review the parallel port parts?

   I have no objections! :-)

MBR, Sergey

Re: [PATCH 00/32] pata_parport-bpck6: rework bpck6 protocol driver

[Ondrej Zary]

On Sunday 19 March 2023 21:02:43 Sergey Shtylyov wrote:
> On 3/18/23 9:55 PM, Ondrej Zary wrote:
> 
> >>> This patch series simplifies bpck6 code, removing ppc6lnx.c file to match
> >>> the simplicity of other protocol drivers. It also converts the direct
> >>> port I/O access to paraport access functions. This conversion revealed that
> >>> there's no 8-bit and 16-bit EPP support in parport_pc so patch 11 implements
> >>> that.
> >>>
> >>> Tested with Backpack CD-RW 222011 and CD-RW 19350.
> >>>
> >>> Signed-off-by: Ondrej Zary <linux@zary.sk>
> >>> ---
> >>>  drivers/ata/pata_parport/bpck6.c   | 452 +++++++++++++++++++++++++++--------
> >>>  drivers/ata/pata_parport/ppc6lnx.c | 726 ---------------------------------------------------------
> >>>  drivers/parport/parport_pc.c       |  20 +-
> >>>  include/uapi/linux/parport.h       |   3 +
> >>>  4 files changed, 370 insertions(+), 831 deletions(-)
> >>
> >>    OK, it's finally clear I can't keep up with reviewing 32 patches posted
> >> at once...  Luckily, all those patches seem to be dealing with parallel port
> >> control), not the PATA control! Of course, when I volunteered to review the
> >> PATA driver patches, I didn't expect such patch volumes -- I mostly expected
> >> some odd fixes, not a massive driver rework... :-/
> > 
> > So you're going to review the (P)ATA parts (if any) only.
> 
>    I saw no PATA parts in this patcheset...
> 
> > Maybe Sudip (as parport maintainer) could review the parallel port parts?
> 
>    I have no objections! :-)

Looks like Sudip does not care. What needs to be done so this can be merged?

-- 
Ondrej Zary

Re: [PATCH 00/32] pata_parport-bpck6: rework bpck6 protocol driver

[Damien Le Moal]

On 3/22/23 21:10, Ondrej Zary wrote:
> On Sunday 19 March 2023 21:02:43 Sergey Shtylyov wrote:
>> On 3/18/23 9:55 PM, Ondrej Zary wrote:
>>
>>>>> This patch series simplifies bpck6 code, removing ppc6lnx.c file to match
>>>>> the simplicity of other protocol drivers. It also converts the direct
>>>>> port I/O access to paraport access functions. This conversion revealed that
>>>>> there's no 8-bit and 16-bit EPP support in parport_pc so patch 11 implements
>>>>> that.
>>>>>
>>>>> Tested with Backpack CD-RW 222011 and CD-RW 19350.
>>>>>
>>>>> Signed-off-by: Ondrej Zary <linux@zary.sk>
>>>>> ---
>>>>>  drivers/ata/pata_parport/bpck6.c   | 452 +++++++++++++++++++++++++++--------
>>>>>  drivers/ata/pata_parport/ppc6lnx.c | 726 ---------------------------------------------------------
>>>>>  drivers/parport/parport_pc.c       |  20 +-
>>>>>  include/uapi/linux/parport.h       |   3 +
>>>>>  4 files changed, 370 insertions(+), 831 deletions(-)
>>>>
>>>>    OK, it's finally clear I can't keep up with reviewing 32 patches posted
>>>> at once...  Luckily, all those patches seem to be dealing with parallel port
>>>> control), not the PATA control! Of course, when I volunteered to review the
>>>> PATA driver patches, I didn't expect such patch volumes -- I mostly expected
>>>> some odd fixes, not a massive driver rework... :-/
>>>
>>> So you're going to review the (P)ATA parts (if any) only.
>>
>>    I saw no PATA parts in this patcheset...
>>
>>> Maybe Sudip (as parport maintainer) could review the parallel port parts?
>>
>>    I have no objections! :-)
> 
> Looks like Sudip does not care. What needs to be done so this can be merged?

I will have a look at the series this morning and merge it if I do not see any
issues.


-- 
Damien Le Moal
Western Digital Research

Re: [PATCH 00/32] pata_parport-bpck6: rework bpck6 protocol driver

[Sudip Mukherjee]

On Wed, 22 Mar 2023 at 12:11, Ondrej Zary <linux@zary.sk> wrote:
>
> On Sunday 19 March 2023 21:02:43 Sergey Shtylyov wrote:
> > On 3/18/23 9:55 PM, Ondrej Zary wrote:
> >
> > >>> This patch series simplifies bpck6 code, removing ppc6lnx.c file to match
> > >>> the simplicity of other protocol drivers. It also converts the direct
> > >>> port I/O access to paraport access functions. This conversion revealed that
> > >>> there's no 8-bit and 16-bit EPP support in parport_pc so patch 11 implements
> > >>> that.
> > >>>
> > >>> Tested with Backpack CD-RW 222011 and CD-RW 19350.
> > >>>
> > >>> Signed-off-by: Ondrej Zary <linux@zary.sk>
> > >>> ---
> > >>>  drivers/ata/pata_parport/bpck6.c   | 452 +++++++++++++++++++++++++++--------
> > >>>  drivers/ata/pata_parport/ppc6lnx.c | 726 ---------------------------------------------------------
> > >>>  drivers/parport/parport_pc.c       |  20 +-
> > >>>  include/uapi/linux/parport.h       |   3 +
> > >>>  4 files changed, 370 insertions(+), 831 deletions(-)
> > >>
> > >>    OK, it's finally clear I can't keep up with reviewing 32 patches posted
> > >> at once...  Luckily, all those patches seem to be dealing with parallel port
> > >> control), not the PATA control! Of course, when I volunteered to review the
> > >> PATA driver patches, I didn't expect such patch volumes -- I mostly expected
> > >> some odd fixes, not a massive driver rework... :-/
> > >
> > > So you're going to review the (P)ATA parts (if any) only.
> >
> >    I saw no PATA parts in this patcheset...
> >
> > > Maybe Sudip (as parport maintainer) could review the parallel port parts?
> >
> >    I have no objections! :-)
>
> Looks like Sudip does not care. What needs to be done so this can be merged?

oops.. sorry. I missed it.


-- 
Regards
Sudip

Re: [PATCH 00/32] pata_parport-bpck6: rework bpck6 protocol driver

[Damien Le Moal]

On 3/8/23 07:45, Ondrej Zary wrote:
> This patch series simplifies bpck6 code, removing ppc6lnx.c file to match
> the simplicity of other protocol drivers. It also converts the direct
> port I/O access to paraport access functions. This conversion revealed that
> there's no 8-bit and 16-bit EPP support in parport_pc so patch 11 implements
> that.
> 
> Tested with Backpack CD-RW 222011 and CD-RW 19350.

I applied this series to for-6.4. The code style in some places is far from
ideal. So follow up cleaning would be nice.

I also noticed a couple of issues that I fixed locally. Sending patches for them.

-- 
Damien Le Moal
Western Digital Research