lkml.org 
[lkml]   [2002]   [Mar]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] 2.5.7 IDE 25
Wed Mar 20 01:52:22 CET 2002 ide-clean-25

- Replace the task_io_reg_t with the simple u8. There is no need to obfuscate
the code more then necessary.

- kill some unnecessary type definitions out from hdreg.h.

- Add proper attributes to register files in hdreg.h.

- Don't use raw arrays for tfRegister and hobRegister in ide_task_s. Use out
nice global structures describing the fields in them. This allows to kill
the following defines:

IDE_DATA_OFFSET
IDE_FEATURE_OFFSET
IDE_NSECTOR_OFFSET
IDE_SECTOR_OFFSET
IDE_LCYL_OFFSET
IDE_HCYL_OFFSET
IDE_SELECT_OFFSET
IDE_COMMAND_OFFSET

and many many others.

- Please have a look at the following in pdc4030.c. It couldn't have worked!
This has been fixed in one go with the above change:

memcpy(args.hobRegister, NULL, sizeof(struct hd_drive_hob_hdr));

- Kill the redundant *_REG_HOB definitions. They don't help readability in any
way.
diff -urN linux-2.5.7/drivers/ide/ide-disk.c linux/drivers/ide/ide-disk.c
--- linux-2.5.7/drivers/ide/ide-disk.c Wed Mar 20 03:28:37 2002
+++ linux/drivers/ide/ide-disk.c Wed Mar 20 03:10:27 2002
@@ -106,7 +106,7 @@
return 0; /* lba_capacity value may be bad */
}

-static task_ioreg_t get_command(ide_drive_t *drive, int cmd)
+static u8 get_command(ide_drive_t *drive, int cmd)
{
int lba48bit = (drive->id->cfs_enable_2 & 0x0400) ? 1 : 0;

@@ -162,17 +162,19 @@
unsigned int head = (track % drive->head);
unsigned int cyl = (track / drive->head);

- memset(&taskfile, 0, sizeof(task_struct_t));
- memset(&hobfile, 0, sizeof(hob_struct_t));
+ memset(&taskfile, 0, sizeof(struct hd_drive_task_hdr));
+ memset(&hobfile, 0, sizeof(struct hd_drive_hob_hdr));

sectors = rq->nr_sectors;
if (sectors == 256)
sectors = 0;

taskfile.sector_count = sectors;
+
taskfile.sector_number = sect;
taskfile.low_cylinder = cyl;
taskfile.high_cylinder = (cyl>>8);
+
taskfile.device_head = head;
taskfile.device_head |= drive->select.all;
taskfile.command = get_command(drive, rq_data_dir(rq));
@@ -186,14 +188,14 @@
printk("buffer=0x%08lx\n", (unsigned long) rq->buffer);
#endif

- memcpy(args.tfRegister, &taskfile, sizeof(struct hd_drive_task_hdr));
- memcpy(args.hobRegister, &hobfile, sizeof(struct hd_drive_hob_hdr));
+ args.taskfile = taskfile;
+ args.hobfile = hobfile;
ide_cmd_type_parser(&args);
rq->special = &args;

return ata_taskfile(drive,
- (struct hd_drive_task_hdr *) &args.tfRegister,
- (struct hd_drive_hob_hdr *) &args.hobRegister,
+ &args.taskfile,
+ &args.hobfile,
args.handler,
args.prehandler,
rq);
@@ -210,14 +212,16 @@
if (sectors == 256)
sectors = 0;

- memset(&taskfile, 0, sizeof(task_struct_t));
- memset(&hobfile, 0, sizeof(hob_struct_t));
+ memset(&taskfile, 0, sizeof(struct hd_drive_task_hdr));
+ memset(&hobfile, 0, sizeof(struct hd_drive_hob_hdr));

taskfile.sector_count = sectors;
taskfile.sector_number = block;
- taskfile.low_cylinder = (block>>=8);
- taskfile.high_cylinder = (block>>=8);
- taskfile.device_head = ((block>>8)&0x0f);
+ taskfile.low_cylinder = (block >>= 8);
+
+ taskfile.high_cylinder = (block >>= 8);
+
+ taskfile.device_head = ((block >> 8) & 0x0f);
taskfile.device_head |= drive->select.all;
taskfile.command = get_command(drive, rq_data_dir(rq));

@@ -230,14 +234,14 @@
printk("buffer=0x%08lx\n", (unsigned long) rq->buffer);
#endif

- memcpy(args.tfRegister, &taskfile, sizeof(struct hd_drive_task_hdr));
- memcpy(args.hobRegister, &hobfile, sizeof(struct hd_drive_hob_hdr));
+ args.taskfile = taskfile;
+ args.hobfile = hobfile;
ide_cmd_type_parser(&args);
rq->special = &args;

return ata_taskfile(drive,
- (struct hd_drive_task_hdr *) &args.tfRegister,
- (struct hd_drive_hob_hdr *) &args.hobRegister,
+ &args.taskfile,
+ &args.hobfile,
args.handler,
args.prehandler,
rq);
@@ -256,8 +260,8 @@
ide_task_t args;
int sectors;

- memset(&taskfile, 0, sizeof(task_struct_t));
- memset(&hobfile, 0, sizeof(hob_struct_t));
+ memset(&taskfile, 0, sizeof(struct hd_drive_task_hdr));
+ memset(&hobfile, 0, sizeof(struct hd_drive_hob_hdr));

sectors = rq->nr_sectors;
if (sectors == 65536)
@@ -271,12 +275,14 @@
hobfile.sector_count = 0x00;
}

- taskfile.sector_number = block; /* low lba */
- taskfile.low_cylinder = (block>>=8); /* mid lba */
- taskfile.high_cylinder = (block>>=8); /* hi lba */
- hobfile.sector_number = (block>>=8); /* low lba */
- hobfile.low_cylinder = (block>>=8); /* mid lba */
- hobfile.high_cylinder = (block>>=8); /* hi lba */
+ taskfile.sector_number = block; /* low lba */
+ taskfile.low_cylinder = (block >>= 8); /* mid lba */
+ taskfile.high_cylinder = (block >>= 8); /* hi lba */
+
+ hobfile.sector_number = (block >>= 8); /* low lba */
+ hobfile.low_cylinder = (block >>= 8); /* mid lba */
+ hobfile.high_cylinder = (block >>= 8); /* hi lba */
+
taskfile.device_head = drive->select.all;
hobfile.device_head = taskfile.device_head;
hobfile.control = (drive->ctl|0x80);
@@ -291,14 +297,14 @@
printk("buffer=0x%08lx\n", (unsigned long) rq->buffer);
#endif

- memcpy(args.tfRegister, &taskfile, sizeof(struct hd_drive_task_hdr));
- memcpy(args.hobRegister, &hobfile, sizeof(struct hd_drive_hob_hdr));
+ args.taskfile = taskfile;
+ args.hobfile = hobfile;
ide_cmd_type_parser(&args);
rq->special = &args;

return ata_taskfile(drive,
- (struct hd_drive_task_hdr *) &args.tfRegister,
- (struct hd_drive_hob_hdr *) &args.hobRegister,
+ &args.taskfile,
+ &args.hobfile,
args.handler,
args.prehandler,
rq);
@@ -355,6 +361,7 @@
memset(&hobfile, 0, sizeof(struct hd_drive_hob_hdr));

check_disk_change(inode->i_rdev);
+
taskfile.command = WIN_DOORLOCK;

/*
@@ -376,9 +383,9 @@
memset(&taskfile, 0, sizeof(struct hd_drive_task_hdr));
memset(&hobfile, 0, sizeof(struct hd_drive_hob_hdr));
if (drive->id->cfs_enable_2 & 0x2400)
- taskfile.command = WIN_FLUSH_CACHE_EXT;
+ taskfile.command = WIN_FLUSH_CACHE_EXT;
else
- taskfile.command = WIN_FLUSH_CACHE;
+ taskfile.command = WIN_FLUSH_CACHE;
return ide_wait_taskfile(drive, &taskfile, &hobfile, NULL);
}

@@ -387,9 +394,12 @@
if (drive->removable && !drive->usage) {
struct hd_drive_task_hdr taskfile;
struct hd_drive_hob_hdr hobfile;
+
memset(&taskfile, 0, sizeof(struct hd_drive_task_hdr));
memset(&hobfile, 0, sizeof(struct hd_drive_hob_hdr));
+
invalidate_bdev(inode->i_bdev, 0);
+
taskfile.command = WIN_DOORUNLOCK;
if (drive->doorlocking &&
ide_wait_taskfile(drive, &taskfile, &hobfile, NULL))
@@ -423,21 +433,23 @@

/* Create IDE/ATA command request structure */
memset(&args, 0, sizeof(ide_task_t));
- args.tfRegister[IDE_SELECT_OFFSET] = 0x40;
- args.tfRegister[IDE_COMMAND_OFFSET] = WIN_READ_NATIVE_MAX;
- args.handler = task_no_data_intr;
+ args.taskfile.device_head = 0x40;
+ args.taskfile.command = WIN_READ_NATIVE_MAX;
+ args.handler = task_no_data_intr;

/* submit command request */
ide_raw_taskfile(drive, &args, NULL);

/* if OK, compute maximum address value */
- if ((args.tfRegister[IDE_STATUS_OFFSET] & 0x01) == 0) {
- addr = ((args.tfRegister[IDE_SELECT_OFFSET] & 0x0f) << 24)
- | ((args.tfRegister[ IDE_HCYL_OFFSET] ) << 16)
- | ((args.tfRegister[ IDE_LCYL_OFFSET] ) << 8)
- | ((args.tfRegister[IDE_SECTOR_OFFSET] ));
+ if ((args.taskfile.command & 0x01) == 0) {
+ addr = ((args.taskfile.device_head & 0x0f) << 24)
+ | (args.taskfile.high_cylinder << 16)
+ | (args.taskfile.low_cylinder << 8)
+ | args.taskfile.sector_number;
}
+
addr++; /* since the return value is (maxlba - 1), we add 1 */
+
return addr;
}

@@ -449,24 +461,26 @@
/* Create IDE/ATA command request structure */
memset(&args, 0, sizeof(ide_task_t));

- args.tfRegister[IDE_SELECT_OFFSET] = 0x40;
- args.tfRegister[IDE_COMMAND_OFFSET] = WIN_READ_NATIVE_MAX_EXT;
- args.handler = task_no_data_intr;
+ args.taskfile.device_head = 0x40;
+ args.taskfile.command = WIN_READ_NATIVE_MAX_EXT;
+ args.handler = task_no_data_intr;

/* submit command request */
ide_raw_taskfile(drive, &args, NULL);

/* if OK, compute maximum address value */
- if ((args.tfRegister[IDE_STATUS_OFFSET] & 0x01) == 0) {
- u32 high = ((args.hobRegister[IDE_HCYL_OFFSET_HOB])<<16) |
- ((args.hobRegister[IDE_LCYL_OFFSET_HOB])<<8) |
- (args.hobRegister[IDE_SECTOR_OFFSET_HOB]);
- u32 low = ((args.tfRegister[IDE_HCYL_OFFSET])<<16) |
- ((args.tfRegister[IDE_LCYL_OFFSET])<<8) |
- (args.tfRegister[IDE_SECTOR_OFFSET]);
+ if ((args.taskfile.command & 0x01) == 0) {
+ u32 high = (args.hobfile.high_cylinder << 16) |
+ (args.hobfile.low_cylinder << 8) |
+ args.hobfile.sector_number;
+ u32 low = (args.taskfile.high_cylinder << 16) |
+ (args.taskfile.low_cylinder << 8) |
+ args.taskfile.sector_number;
addr = ((__u64)high << 24) | low;
}
+
addr++; /* since the return value is (maxlba - 1), we add 1 */
+
return addr;
}

@@ -483,20 +497,22 @@
addr_req--;
/* Create IDE/ATA command request structure */
memset(&args, 0, sizeof(ide_task_t));
- args.tfRegister[IDE_SECTOR_OFFSET] = ((addr_req >> 0) & 0xff);
- args.tfRegister[IDE_LCYL_OFFSET] = ((addr_req >> 8) & 0xff);
- args.tfRegister[IDE_HCYL_OFFSET] = ((addr_req >> 16) & 0xff);
- args.tfRegister[IDE_SELECT_OFFSET] = ((addr_req >> 24) & 0x0f) | 0x40;
- args.tfRegister[IDE_COMMAND_OFFSET] = WIN_SET_MAX;
+
+ args.taskfile.sector_number = (addr_req >> 0);
+ args.taskfile.low_cylinder = (addr_req >> 8);
+ args.taskfile.high_cylinder = (addr_req >> 16);
+
+ args.taskfile.device_head = ((addr_req >> 24) & 0x0f) | 0x40;
+ args.taskfile.command = WIN_SET_MAX;
args.handler = task_no_data_intr;
/* submit command request */
ide_raw_taskfile(drive, &args, NULL);
/* if OK, read new maximum address value */
- if ((args.tfRegister[IDE_STATUS_OFFSET] & 0x01) == 0) {
- addr_set = ((args.tfRegister[IDE_SELECT_OFFSET] & 0x0f) << 24)
- | ((args.tfRegister[ IDE_HCYL_OFFSET] ) << 16)
- | ((args.tfRegister[ IDE_LCYL_OFFSET] ) << 8)
- | ((args.tfRegister[IDE_SECTOR_OFFSET] ));
+ if ((args.taskfile.command & 0x01) == 0) {
+ addr_set = ((args.taskfile.device_head & 0x0f) << 24)
+ | (args.taskfile.high_cylinder << 16)
+ | (args.taskfile.low_cylinder << 8)
+ | args.taskfile.sector_number;
}
addr_set++;
return addr_set;
@@ -510,27 +526,31 @@
addr_req--;
/* Create IDE/ATA command request structure */
memset(&args, 0, sizeof(ide_task_t));
- args.tfRegister[IDE_SECTOR_OFFSET] = ((addr_req >> 0) & 0xff);
- args.tfRegister[IDE_LCYL_OFFSET] = ((addr_req >>= 8) & 0xff);
- args.tfRegister[IDE_HCYL_OFFSET] = ((addr_req >>= 8) & 0xff);
- args.tfRegister[IDE_SELECT_OFFSET] = 0x40;
- args.tfRegister[IDE_COMMAND_OFFSET] = WIN_SET_MAX_EXT;
- args.hobRegister[IDE_SECTOR_OFFSET_HOB] = ((addr_req >>= 8) & 0xff);
- args.hobRegister[IDE_LCYL_OFFSET_HOB] = ((addr_req >>= 8) & 0xff);
- args.hobRegister[IDE_HCYL_OFFSET_HOB] = ((addr_req >>= 8) & 0xff);
- args.hobRegister[IDE_SELECT_OFFSET_HOB] = 0x40;
- args.hobRegister[IDE_CONTROL_OFFSET_HOB]= (drive->ctl|0x80);
+
+ args.taskfile.sector_number = (addr_req >> 0);
+ args.taskfile.low_cylinder = (addr_req >>= 8);
+ args.taskfile.high_cylinder = (addr_req >>= 8);
+ args.taskfile.device_head = 0x40;
+ args.taskfile.command = WIN_SET_MAX_EXT;
+
+ args.hobfile.sector_number = (addr_req >>= 8);
+ args.hobfile.low_cylinder = (addr_req >>= 8);
+ args.hobfile.high_cylinder = (addr_req >>= 8);
+
+ args.hobfile.device_head = 0x40;
+ args.hobfile.control = (drive->ctl | 0x80);
+
args.handler = task_no_data_intr;
/* submit command request */
ide_raw_taskfile(drive, &args, NULL);
/* if OK, compute maximum address value */
- if ((args.tfRegister[IDE_STATUS_OFFSET] & 0x01) == 0) {
- u32 high = ((args.hobRegister[IDE_HCYL_OFFSET_HOB])<<16) |
- ((args.hobRegister[IDE_LCYL_OFFSET_HOB])<<8) |
- (args.hobRegister[IDE_SECTOR_OFFSET_HOB]);
- u32 low = ((args.tfRegister[IDE_HCYL_OFFSET])<<16) |
- ((args.tfRegister[IDE_LCYL_OFFSET])<<8) |
- (args.tfRegister[IDE_SECTOR_OFFSET]);
+ if ((args.taskfile.command & 0x01) == 0) {
+ u32 high = (args.hobfile.high_cylinder << 16) |
+ (args.hobfile.low_cylinder << 8) |
+ args.hobfile.sector_number;
+ u32 low = (args.taskfile.high_cylinder << 16) |
+ (args.taskfile.low_cylinder << 8) |
+ args.taskfile.sector_number;
addr_set = ((__u64)high << 24) | low;
}
return addr_set;
diff -urN linux-2.5.7/drivers/ide/ide-dma.c linux/drivers/ide/ide-dma.c
--- linux-2.5.7/drivers/ide/ide-dma.c Mon Mar 18 21:37:07 2002
+++ linux/drivers/ide/ide-dma.c Wed Mar 20 02:44:47 2002
@@ -592,7 +592,7 @@
if ((HWGROUP(drive)->rq->flags & REQ_DRIVE_TASKFILE) &&
(drive->addressing == 1)) {
ide_task_t *args = HWGROUP(drive)->rq->special;
- OUT_BYTE(args->tfRegister[IDE_COMMAND_OFFSET], IDE_COMMAND_REG);
+ OUT_BYTE(args->taskfile.command, IDE_COMMAND_REG);
} else if (drive->addressing) {
OUT_BYTE(reading ? WIN_READDMA_EXT : WIN_WRITEDMA_EXT, IDE_COMMAND_REG);
} else {
diff -urN linux-2.5.7/drivers/ide/ide-features.c linux/drivers/ide/ide-features.c
--- linux-2.5.7/drivers/ide/ide-features.c Mon Mar 18 21:37:17 2002
+++ linux/drivers/ide/ide-features.c Wed Mar 20 03:03:34 2002
@@ -2,7 +2,7 @@
* linux/drivers/block/ide-features.c Version 0.04 June 9, 2000
*
* Copyright (C) 1999-2000 Linus Torvalds & authors (see below)
- *
+ *
* Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
*
* Extracts if ide.c to address the evolving transfer rate code for
@@ -186,9 +186,9 @@
*/
int ide_ata66_check (ide_drive_t *drive, ide_task_t *args)
{
- if ((args->tfRegister[IDE_COMMAND_OFFSET] == WIN_SETFEATURES) &&
- (args->tfRegister[IDE_SECTOR_OFFSET] > XFER_UDMA_2) &&
- (args->tfRegister[IDE_FEATURE_OFFSET] == SETFEATURES_XFER)) {
+ if ((args->taskfile.command == WIN_SETFEATURES) &&
+ (args->taskfile.sector_number > XFER_UDMA_2) &&
+ (args->taskfile.feature == SETFEATURES_XFER)) {
if (!HWIF(drive)->udma_four) {
printk("%s: Speed warnings UDMA 3/4/5 is not functional.\n", HWIF(drive)->name);
return 1;
@@ -213,9 +213,9 @@
*/
int set_transfer (ide_drive_t *drive, ide_task_t *args)
{
- if ((args->tfRegister[IDE_COMMAND_OFFSET] == WIN_SETFEATURES) &&
- (args->tfRegister[IDE_SECTOR_OFFSET] >= XFER_SW_DMA_0) &&
- (args->tfRegister[IDE_FEATURE_OFFSET] == SETFEATURES_XFER) &&
+ if ((args->taskfile.command == WIN_SETFEATURES) &&
+ (args->taskfile.sector_number >= XFER_SW_DMA_0) &&
+ (args->taskfile.feature == SETFEATURES_XFER) &&
(drive->id->dma_ultra ||
drive->id->dma_mword ||
drive->id->dma_1word))
diff -urN linux-2.5.7/drivers/ide/ide-geometry.c linux/drivers/ide/ide-geometry.c
--- linux-2.5.7/drivers/ide/ide-geometry.c Mon Mar 18 21:37:03 2002
+++ linux/drivers/ide/ide-geometry.c Wed Mar 20 02:03:29 2002
@@ -7,6 +7,7 @@
*/

#include <linux/config.h>
+#include <linux/types.h>
#include <linux/ide.h>
#include <linux/mc146818rtc.h>
#include <asm/io.h>
diff -urN linux-2.5.7/drivers/ide/ide-taskfile.c linux/drivers/ide/ide-taskfile.c
--- linux-2.5.7/drivers/ide/ide-taskfile.c Wed Mar 20 03:28:37 2002
+++ linux/drivers/ide/ide-taskfile.c Wed Mar 20 03:06:52 2002
@@ -534,8 +534,8 @@
}

/* (ks/hs): Fixed Multi Write */
- if ((args->tfRegister[IDE_COMMAND_OFFSET] != WIN_MULTWRITE) &&
- (args->tfRegister[IDE_COMMAND_OFFSET] != WIN_MULTWRITE_EXT)) {
+ if ((args->taskfile.command != WIN_MULTWRITE) &&
+ (args->taskfile.command != WIN_MULTWRITE_EXT)) {
unsigned long flags;
char *buf = ide_map_rq(rq, &flags);
/* For Write_sectors we need to stuff the first sector */
@@ -741,12 +741,12 @@
/* Called by ioctl to feature out type of command being called */
void ide_cmd_type_parser(ide_task_t *args)
{
- struct hd_drive_task_hdr *taskfile = (struct hd_drive_task_hdr *) args->tfRegister;
+ struct hd_drive_task_hdr *taskfile = &args->taskfile;

args->prehandler = NULL;
args->handler = NULL;

- switch(args->tfRegister[IDE_COMMAND_OFFSET]) {
+ switch(args->taskfile.command) {
case WIN_IDENTIFY:
case WIN_PIDENTIFY:
args->handler = task_in_intr;
@@ -797,9 +797,11 @@
case WIN_SMART:
if (taskfile->feature == SMART_WRITE_LOG_SECTOR)
args->prehandler = pre_task_out_intr;
- args->tfRegister[IDE_LCYL_OFFSET] = SMART_LCYL_PASS;
- args->tfRegister[IDE_HCYL_OFFSET] = SMART_HCYL_PASS;
- switch(args->tfRegister[IDE_FEATURE_OFFSET]) {
+
+ args->taskfile.low_cylinder = SMART_LCYL_PASS;
+ args->taskfile.high_cylinder = SMART_HCYL_PASS;
+
+ switch(args->taskfile.feature) {
case SMART_READ_VALUES:
case SMART_READ_THRESHOLDS:
case SMART_READ_LOG_SECTOR:
@@ -837,7 +839,7 @@
#endif
case WIN_SETFEATURES:
args->handler = task_no_data_intr;
- switch(args->tfRegister[IDE_FEATURE_OFFSET]) {
+ switch(args->taskfile.feature) {
case SETFEATURES_XFER:
args->command_type = IDE_DRIVE_TASK_SET_XFER;
return;
@@ -944,27 +946,13 @@
int ide_wait_taskfile(ide_drive_t *drive, struct hd_drive_task_hdr *taskfile, struct hd_drive_hob_hdr *hobfile, byte *buf)
{
struct request rq;
+ /* FIXME: This is on stack! */
ide_task_t args;

memset(&args, 0, sizeof(ide_task_t));

- args.tfRegister[IDE_DATA_OFFSET] = taskfile->data;
- args.tfRegister[IDE_FEATURE_OFFSET] = taskfile->feature;
- args.tfRegister[IDE_NSECTOR_OFFSET] = taskfile->sector_count;
- args.tfRegister[IDE_SECTOR_OFFSET] = taskfile->sector_number;
- args.tfRegister[IDE_LCYL_OFFSET] = taskfile->low_cylinder;
- args.tfRegister[IDE_HCYL_OFFSET] = taskfile->high_cylinder;
- args.tfRegister[IDE_SELECT_OFFSET] = taskfile->device_head;
- args.tfRegister[IDE_COMMAND_OFFSET] = taskfile->command;
-
- args.hobRegister[IDE_DATA_OFFSET_HOB] = hobfile->data;
- args.hobRegister[IDE_FEATURE_OFFSET_HOB] = hobfile->feature;
- args.hobRegister[IDE_NSECTOR_OFFSET_HOB] = hobfile->sector_count;
- args.hobRegister[IDE_SECTOR_OFFSET_HOB] = hobfile->sector_number;
- args.hobRegister[IDE_LCYL_OFFSET_HOB] = hobfile->low_cylinder;
- args.hobRegister[IDE_HCYL_OFFSET_HOB] = hobfile->high_cylinder;
- args.hobRegister[IDE_SELECT_OFFSET_HOB] = hobfile->device_head;
- args.hobRegister[IDE_CONTROL_OFFSET_HOB] = hobfile->control;
+ args.taskfile = *taskfile;
+ args.hobfile = *hobfile;

init_taskfile_request(&rq);

@@ -986,7 +974,9 @@
rq.buffer = buf;

if (args->command_type != IDE_DRIVE_TASK_NO_DATA)
- rq.current_nr_sectors = rq.nr_sectors = (args->hobRegister[IDE_NSECTOR_OFFSET_HOB] << 8) | args->tfRegister[IDE_NSECTOR_OFFSET];
+ rq.current_nr_sectors = rq.nr_sectors
+ = (args->hobfile.sector_count << 8)
+ | args->taskfile.sector_count;

rq.special = args;

@@ -1032,13 +1022,13 @@
if (copy_from_user(args, (void *)arg, 4))
return -EFAULT;

- tfargs.tfRegister[IDE_FEATURE_OFFSET] = args[2];
- tfargs.tfRegister[IDE_NSECTOR_OFFSET] = args[3];
- tfargs.tfRegister[IDE_SECTOR_OFFSET] = args[1];
- tfargs.tfRegister[IDE_LCYL_OFFSET] = 0x00;
- tfargs.tfRegister[IDE_HCYL_OFFSET] = 0x00;
- tfargs.tfRegister[IDE_SELECT_OFFSET] = 0x00;
- tfargs.tfRegister[IDE_COMMAND_OFFSET] = args[0];
+ tfargs.taskfile.feature = args[2];
+ tfargs.taskfile.sector_count = args[3];
+ tfargs.taskfile.sector_number = args[1];
+ tfargs.taskfile.low_cylinder = 0x00;
+ tfargs.taskfile.high_cylinder = 0x00;
+ tfargs.taskfile.device_head = 0x00;
+ tfargs.taskfile.command = args[0];

if (args[3]) {
argsize = 4 + (SECTOR_WORDS * 4 * args[3]);
diff -urN linux-2.5.7/drivers/ide/ide.c linux/drivers/ide/ide.c
--- linux-2.5.7/drivers/ide/ide.c Wed Mar 20 03:28:37 2002
+++ linux/drivers/ide/ide.c Wed Mar 20 03:17:31 2002
@@ -737,22 +737,25 @@
ide_task_t *args = (ide_task_t *) rq->special;
rq->errors = !OK_STAT(stat,READY_STAT,BAD_STAT);
if (args) {
- args->tfRegister[IDE_ERROR_OFFSET] = err;
- args->tfRegister[IDE_NSECTOR_OFFSET] = IN_BYTE(IDE_NSECTOR_REG);
- args->tfRegister[IDE_SECTOR_OFFSET] = IN_BYTE(IDE_SECTOR_REG);
- args->tfRegister[IDE_LCYL_OFFSET] = IN_BYTE(IDE_LCYL_REG);
- args->tfRegister[IDE_HCYL_OFFSET] = IN_BYTE(IDE_HCYL_REG);
- args->tfRegister[IDE_SELECT_OFFSET] = IN_BYTE(IDE_SELECT_REG);
- args->tfRegister[IDE_STATUS_OFFSET] = stat;
+ args->taskfile.feature = err;
+ args->taskfile.sector_count = IN_BYTE(IDE_NSECTOR_REG);
+ args->taskfile.sector_number = IN_BYTE(IDE_SECTOR_REG);
+ args->taskfile.low_cylinder = IN_BYTE(IDE_LCYL_REG);
+ args->taskfile.high_cylinder = IN_BYTE(IDE_HCYL_REG);
+ args->taskfile.device_head = IN_BYTE(IDE_SELECT_REG);
+ args->taskfile.command = stat;
if ((drive->id->command_set_2 & 0x0400) &&
(drive->id->cfs_enable_2 & 0x0400) &&
(drive->addressing == 1)) {
- OUT_BYTE(drive->ctl|0x80, IDE_CONTROL_REG_HOB);
- args->hobRegister[IDE_FEATURE_OFFSET_HOB] = IN_BYTE(IDE_FEATURE_REG);
- args->hobRegister[IDE_NSECTOR_OFFSET_HOB] = IN_BYTE(IDE_NSECTOR_REG);
- args->hobRegister[IDE_SECTOR_OFFSET_HOB] = IN_BYTE(IDE_SECTOR_REG);
- args->hobRegister[IDE_LCYL_OFFSET_HOB] = IN_BYTE(IDE_LCYL_REG);
- args->hobRegister[IDE_HCYL_OFFSET_HOB] = IN_BYTE(IDE_HCYL_REG);
+ /* The following command goes to the hob file! */
+
+ OUT_BYTE(drive->ctl|0x80, IDE_CONTROL_REG);
+ args->hobfile.feature = IN_BYTE(IDE_FEATURE_REG);
+ args->hobfile.sector_count = IN_BYTE(IDE_NSECTOR_REG);
+
+ args->hobfile.sector_number = IN_BYTE(IDE_SECTOR_REG);
+ args->hobfile.low_cylinder = IN_BYTE(IDE_LCYL_REG);
+ args->hobfile.high_cylinder = IN_BYTE(IDE_HCYL_REG);
}
}
}
@@ -1081,12 +1084,12 @@
goto args_error;

ata_taskfile(drive,
- (struct hd_drive_task_hdr *)&args->tfRegister,
- (struct hd_drive_hob_hdr *)&args->hobRegister,
+ &args->taskfile,
+ &args->hobfile,
args->handler, NULL, NULL);

if (((args->command_type == IDE_DRIVE_TASK_RAW_WRITE) ||
- (args->command_type == IDE_DRIVE_TASK_OUT)) &&
+ (args->command_type == IDE_DRIVE_TASK_OUT)) &&
args->prehandler && args->handler)
return args->prehandler(drive, rq);
return ide_started;
diff -urN linux-2.5.7/drivers/ide/pdc4030.c linux/drivers/ide/pdc4030.c
--- linux-2.5.7/drivers/ide/pdc4030.c Wed Mar 20 03:28:37 2002
+++ linux/drivers/ide/pdc4030.c Wed Mar 20 03:09:00 2002
@@ -549,8 +549,8 @@
*/
ide_startstop_t do_pdc4030_io (ide_drive_t *drive, ide_task_t *task)
{
- struct request *rq = HWGROUP(drive)->rq;
- task_struct_t *taskfile = (task_struct_t *) task->tfRegister;
+ struct request *rq = HWGROUP(drive)->rq;
+ struct hd_drive_task_hdr *taskfile = &task->taskfile;
unsigned long timeout;
byte stat;

@@ -652,8 +652,9 @@
taskfile.device_head = ((block>>8)&0x0f)|drive->select.all;
taskfile.command = (rq_data_dir(rq)==READ)?PROMISE_READ:PROMISE_WRITE;

- memcpy(args.tfRegister, &taskfile, sizeof(struct hd_drive_task_hdr));
- memcpy(args.hobRegister, NULL, sizeof(struct hd_drive_hob_hdr));
+ args.taskfile = taskfile;
+ memset(&args.hobfile, 0, sizeof(struct hd_drive_hob_hdr));
+
ide_cmd_type_parser(&args);
/* We don't use the generic inerrupt handlers here? */
args.prehandler = NULL;
diff -urN linux-2.5.7/include/linux/hdreg.h linux/include/linux/hdreg.h
--- linux-2.5.7/include/linux/hdreg.h Mon Mar 18 21:37:14 2002
+++ linux/include/linux/hdreg.h Wed Mar 20 03:23:44 2002
@@ -54,16 +54,9 @@
* HDIO_DRIVE_CMD and HDIO_DRIVE_TASK
*/

-#if 0
-#include <asm/hdreg.h>
-typedef ide_ioreg_t task_ioreg_t;
-#else
-typedef unsigned char task_ioreg_t;
-#endif
-
-#define HDIO_DRIVE_CMD_HDR_SIZE 4*sizeof(task_ioreg_t)
-#define HDIO_DRIVE_TASK_HDR_SIZE 8*sizeof(task_ioreg_t)
-#define HDIO_DRIVE_HOB_HDR_SIZE 8*sizeof(task_ioreg_t)
+#define HDIO_DRIVE_CMD_HDR_SIZE (4 * sizeof(u8))
+#define HDIO_DRIVE_TASK_HDR_SIZE (8 * sizeof(u8))
+#define HDIO_DRIVE_HOB_HDR_SIZE (8 * sizeof(u8))

#define IDE_DRIVE_TASK_INVALID -1
#define IDE_DRIVE_TASK_NO_DATA 0
@@ -74,57 +67,27 @@
#define IDE_DRIVE_TASK_OUT 3
#define IDE_DRIVE_TASK_RAW_WRITE 4

-struct hd_drive_cmd_hdr {
- task_ioreg_t command;
- task_ioreg_t sector_number;
- task_ioreg_t feature;
- task_ioreg_t sector_count;
-};
-
-typedef struct hd_drive_task_hdr {
- task_ioreg_t data;
- task_ioreg_t feature;
- task_ioreg_t sector_count;
- task_ioreg_t sector_number;
- task_ioreg_t low_cylinder;
- task_ioreg_t high_cylinder;
- task_ioreg_t device_head;
- task_ioreg_t command;
-} task_struct_t;
-
-typedef struct hd_drive_hob_hdr {
- task_ioreg_t data;
- task_ioreg_t feature;
- task_ioreg_t sector_count;
- task_ioreg_t sector_number;
- task_ioreg_t low_cylinder;
- task_ioreg_t high_cylinder;
- task_ioreg_t device_head;
- task_ioreg_t control;
-} hob_struct_t;
-
-typedef union ide_reg_valid_s {
- unsigned all : 16;
- struct {
- unsigned data : 1;
- unsigned error_feature : 1;
- unsigned sector : 1;
- unsigned nsector : 1;
- unsigned lcyl : 1;
- unsigned hcyl : 1;
- unsigned select : 1;
- unsigned status_command : 1;
-
- unsigned data_hob : 1;
- unsigned error_feature_hob : 1;
- unsigned sector_hob : 1;
- unsigned nsector_hob : 1;
- unsigned lcyl_hob : 1;
- unsigned hcyl_hob : 1;
- unsigned select_hob : 1;
- unsigned control_hob : 1;
- } b;
-} ide_reg_valid_t;
+struct hd_drive_task_hdr {
+ u8 data;
+ u8 feature;
+ u8 sector_count;
+ u8 sector_number;
+ u8 low_cylinder;
+ u8 high_cylinder;
+ u8 device_head;
+ u8 command;
+} __attribute__((packed));
+
+struct hd_drive_hob_hdr {
+ u8 data;
+ u8 feature;
+ u8 sector_count;
+ u8 sector_number;
+ u8 low_cylinder;
+ u8 high_cylinder;
+ u8 device_head;
+ u8 control;
+} __attribute__((packed));

/*
* Define standard taskfile in/out register
@@ -134,23 +97,6 @@
#define IDE_HOB_STD_OUT_FLAGS 0xC0
#define IDE_HOB_STD_IN_FLAGS 0xC0

-typedef struct ide_task_request_s {
- task_ioreg_t io_ports[8];
- task_ioreg_t hob_ports[8];
- ide_reg_valid_t out_flags;
- ide_reg_valid_t in_flags;
- int data_phase;
- int req_cmd;
- unsigned long out_size;
- unsigned long in_size;
-} ide_task_request_t;
-
-typedef struct ide_ioctl_request_s {
- ide_task_request_t *task_request;
- unsigned char *out_buffer;
- unsigned char *in_buffer;
-} ide_ioctl_request_t;
-
#define TASKFILE_INVALID 0x7fff
#define TASKFILE_48 0x8000

@@ -212,7 +158,7 @@
#define WIN_PIDENTIFY 0xA1 /* identify ATAPI device */
#define WIN_QUEUED_SERVICE 0xA2
#define WIN_SMART 0xB0 /* self-monitoring and reporting */
-#define CFA_ERASE_SECTORS 0xC0
+#define CFA_ERASE_SECTORS 0xC0
#define WIN_MULTREAD 0xC4 /* read sectors using multiple mode*/
#define WIN_MULTWRITE 0xC5 /* write sectors using multiple mode */
#define WIN_SETMULT 0xC6 /* enable/disable multiple mode */
@@ -221,12 +167,12 @@
#define WIN_WRITEDMA 0xCA /* write sectors using DMA transfers */
#define WIN_WRITEDMA_QUEUED 0xCC /* write sectors using Queued DMA transfers */
#define CFA_WRITE_MULTI_WO_ERASE 0xCD /* CFA Write multiple without erase */
-#define WIN_GETMEDIASTATUS 0xDA
+#define WIN_GETMEDIASTATUS 0xDA
#define WIN_DOORLOCK 0xDE /* lock door on removable drives */
#define WIN_DOORUNLOCK 0xDF /* unlock door on removable drives */
#define WIN_STANDBYNOW1 0xE0
#define WIN_IDLEIMMEDIATE 0xE1 /* force drive to become "ready" */
-#define WIN_STANDBY 0xE2 /* Set device in Standby Mode */
+#define WIN_STANDBY 0xE2 /* Set device in Standby Mode */
#define WIN_SETIDLE1 0xE3
#define WIN_READ_BUFFER 0xE4 /* force read only 1 sector */
#define WIN_CHECKPOWERMODE1 0xE5
@@ -268,7 +214,7 @@

#define SMART_LCYL_PASS 0x4F
#define SMART_HCYL_PASS 0xC2
-
+
/* WIN_SETFEATURES sub-commands */

#define SETFEATURES_EN_WCACHE 0x02 /* Enable write cache */
diff -urN linux-2.5.7/include/linux/ide.h linux/include/linux/ide.h
--- linux-2.5.7/include/linux/ide.h Wed Mar 20 03:28:37 2002
+++ linux/include/linux/ide.h Wed Mar 20 03:23:51 2002
@@ -90,17 +90,6 @@
#define IDE_FEATURE_OFFSET IDE_ERROR_OFFSET
#define IDE_COMMAND_OFFSET IDE_STATUS_OFFSET

-#define IDE_DATA_OFFSET_HOB (0)
-#define IDE_ERROR_OFFSET_HOB (1)
-#define IDE_NSECTOR_OFFSET_HOB (2)
-#define IDE_SECTOR_OFFSET_HOB (3)
-#define IDE_LCYL_OFFSET_HOB (4)
-#define IDE_HCYL_OFFSET_HOB (5)
-#define IDE_SELECT_OFFSET_HOB (6)
-#define IDE_CONTROL_OFFSET_HOB (7)
-
-#define IDE_FEATURE_OFFSET_HOB IDE_ERROR_OFFSET_HOB
-
#define IDE_DATA_REG (HWIF(drive)->io_ports[IDE_DATA_OFFSET])
#define IDE_ERROR_REG (HWIF(drive)->io_ports[IDE_ERROR_OFFSET])
#define IDE_NSECTOR_REG (HWIF(drive)->io_ports[IDE_NSECTOR_OFFSET])
@@ -112,16 +101,6 @@
#define IDE_CONTROL_REG (HWIF(drive)->io_ports[IDE_CONTROL_OFFSET])
#define IDE_IRQ_REG (HWIF(drive)->io_ports[IDE_IRQ_OFFSET])

-#define IDE_DATA_REG_HOB (HWIF(drive)->io_ports[IDE_DATA_OFFSET])
-#define IDE_ERROR_REG_HOB (HWIF(drive)->io_ports[IDE_ERROR_OFFSET])
-#define IDE_NSECTOR_REG_HOB (HWIF(drive)->io_ports[IDE_NSECTOR_OFFSET])
-#define IDE_SECTOR_REG_HOB (HWIF(drive)->io_ports[IDE_SECTOR_OFFSET])
-#define IDE_LCYL_REG_HOB (HWIF(drive)->io_ports[IDE_LCYL_OFFSET])
-#define IDE_HCYL_REG_HOB (HWIF(drive)->io_ports[IDE_HCYL_OFFSET])
-#define IDE_SELECT_REG_HOB (HWIF(drive)->io_ports[IDE_SELECT_OFFSET])
-#define IDE_STATUS_REG_HOB (HWIF(drive)->io_ports[IDE_STATUS_OFFSET])
-#define IDE_CONTROL_REG_HOB (HWIF(drive)->io_ports[IDE_CONTROL_OFFSET])
-
#define IDE_FEATURE_REG IDE_ERROR_REG
#define IDE_COMMAND_REG IDE_STATUS_REG
#define IDE_ALTSTATUS_REG IDE_CONTROL_REG
@@ -785,8 +764,8 @@
void ide_end_drive_cmd (ide_drive_t *drive, byte stat, byte err);

typedef struct ide_task_s {
- task_ioreg_t tfRegister[8];
- task_ioreg_t hobRegister[8];
+ struct hd_drive_task_hdr taskfile;
+ struct hd_drive_hob_hdr hobfile;
int command_type;
ide_pre_handler_t *prehandler;
ide_handler_t *handler;
\
 
 \ /
  Last update: 2005-03-22 13:22    [W:0.283 / U:7.632 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site