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ide: add struct ide_taskfile (take 2)

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* Don't set write-only ide_task_t.hobRegister[6] and ide_task_t.hobRegister[7]
  in idedisk_set_max_address_ext().

* Add struct ide_taskfile and use it in ide_task_t instead of tfRegister[]
  and hobRegister[].

* Remove no longer needed IDE_CONTROL_OFFSET_HOB define.

* Add #ifndef/#endif __KERNEL__ around definitions of {task,hob}_struct_t.

While at it:

* Use ATA_LBA define for LBA bit (0x40) as suggested by Tejun Heo.

v2:
* Add missing newlines. (Noticed by Sergei)

* Use ~ATA_LBA instead of 0xBF. (Noticed by Sergei)

* Use unnamed unions for error/feature and status/command.
  (Suggested by Sergei).

There should be no functionality changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-01-25 22:17:06 +01:00
parent cd2a2d9697
commit 650d841d9e
8 changed files with 179 additions and 171 deletions
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8
drivers/ide/ide-acpi.c
View File

@ -388,13 +388,7 @@ static int taskfile_load_raw(ide_drive_t *drive,
args.handler = &task_no_data_intr;
/* convert gtf to IDE Taskfile */
args.tfRegister[1] = gtf->tfa[0]; /* 0x1f1 */
args.tfRegister[2] = gtf->tfa[1]; /* 0x1f2 */
args.tfRegister[3] = gtf->tfa[2]; /* 0x1f3 */
args.tfRegister[4] = gtf->tfa[3]; /* 0x1f4 */
args.tfRegister[5] = gtf->tfa[4]; /* 0x1f5 */
args.tfRegister[6] = gtf->tfa[5]; /* 0x1f6 */
args.tfRegister[7] = gtf->tfa[6]; /* 0x1f7 */
memcpy(&args.tf_array[7], &gtf->tfa, 7);
if (ide_noacpitfs) {
DEBPRINT("_GTF execution disabled\n");

120
drivers/ide/ide-disk.c
View File

@ -310,23 +310,22 @@ static ide_startstop_t ide_do_rw_disk (ide_drive_t *drive, struct request *rq, s
static unsigned long idedisk_read_native_max_address(ide_drive_t *drive)
{
ide_task_t args;
struct ide_taskfile *tf = &args.tf;
unsigned long addr = 0;
/* 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;
tf->device = ATA_LBA;
tf->command = WIN_READ_NATIVE_MAX;
args.command_type = IDE_DRIVE_TASK_NO_DATA;
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 ((tf->status & 0x01) == 0) {
addr = ((tf->device & 0xf) << 24) |
(tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
addr++; /* since the return value is (maxlba - 1), we add 1 */
}
return addr;
@ -335,26 +334,24 @@ static unsigned long idedisk_read_native_max_address(ide_drive_t *drive)
static unsigned long long idedisk_read_native_max_address_ext(ide_drive_t *drive)
{
ide_task_t args;
struct ide_taskfile *tf = &args.tf;
unsigned long long addr = 0;
/* 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;
tf->device = ATA_LBA;
tf->command = WIN_READ_NATIVE_MAX_EXT;
args.command_type = IDE_DRIVE_TASK_NO_DATA;
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] << 16) |
(args.hobRegister[IDE_LCYL_OFFSET] << 8) |
args.hobRegister[IDE_SECTOR_OFFSET];
u32 low = ((args.tfRegister[IDE_HCYL_OFFSET])<<16) |
((args.tfRegister[IDE_LCYL_OFFSET])<<8) |
(args.tfRegister[IDE_SECTOR_OFFSET]);
if ((tf->status & 0x01) == 0) {
u32 high, low;
high = (tf->hob_lbah << 16) | (tf->hob_lbam << 8) | tf->hob_lbal;
low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
addr = ((__u64)high << 24) | low;
addr++; /* since the return value is (maxlba - 1), we add 1 */
}
@ -368,26 +365,25 @@ static unsigned long long idedisk_read_native_max_address_ext(ide_drive_t *drive
static unsigned long idedisk_set_max_address(ide_drive_t *drive, unsigned long addr_req)
{
ide_task_t args;
struct ide_taskfile *tf = &args.tf;
unsigned long addr_set = 0;
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;
tf->lbal = (addr_req >> 0) & 0xff;
tf->lbam = (addr_req >> 8) & 0xff;
tf->lbah = (addr_req >> 16) & 0xff;
tf->device = ((addr_req >> 24) & 0x0f) | ATA_LBA;
tf->command = WIN_SET_MAX;
args.command_type = IDE_DRIVE_TASK_NO_DATA;
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 ((tf->status & 0x01) == 0) {
addr_set = ((tf->device & 0xf) << 24) |
(tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
addr_set++;
}
return addr_set;
@ -396,33 +392,30 @@ static unsigned long idedisk_set_max_address(ide_drive_t *drive, unsigned long a
static unsigned long long idedisk_set_max_address_ext(ide_drive_t *drive, unsigned long long addr_req)
{
ide_task_t args;
struct ide_taskfile *tf = &args.tf;
unsigned long long addr_set = 0;
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] = (addr_req >>= 8) & 0xff;
args.hobRegister[IDE_LCYL_OFFSET] = (addr_req >>= 8) & 0xff;
args.hobRegister[IDE_HCYL_OFFSET] = (addr_req >>= 8) & 0xff;
args.hobRegister[IDE_SELECT_OFFSET] = 0x40;
args.hobRegister[IDE_CONTROL_OFFSET_HOB]= (drive->ctl|0x80);
tf->lbal = (addr_req >> 0) & 0xff;
tf->lbam = (addr_req >>= 8) & 0xff;
tf->lbah = (addr_req >>= 8) & 0xff;
tf->device = ATA_LBA;
tf->command = WIN_SET_MAX_EXT;
tf->hob_lbal = (addr_req >>= 8) & 0xff;
tf->hob_lbam = (addr_req >>= 8) & 0xff;
tf->hob_lbah = (addr_req >>= 8) & 0xff;
args.command_type = IDE_DRIVE_TASK_NO_DATA;
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] << 16) |
(args.hobRegister[IDE_LCYL_OFFSET] << 8) |
args.hobRegister[IDE_SECTOR_OFFSET];
u32 low = ((args.tfRegister[IDE_HCYL_OFFSET])<<16) |
((args.tfRegister[IDE_LCYL_OFFSET])<<8) |
(args.tfRegister[IDE_SECTOR_OFFSET]);
if ((tf->status & 0x01) == 0) {
u32 high, low;
high = (tf->hob_lbah << 16) | (tf->hob_lbam << 8) | tf->hob_lbal;
low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
addr_set = ((__u64)high << 24) | low;
addr_set++;
}
@ -556,12 +549,13 @@ static sector_t idedisk_capacity (ide_drive_t *drive)
static int smart_enable(ide_drive_t *drive)
{
ide_task_t args;
struct ide_taskfile *tf = &args.tf;
memset(&args, 0, sizeof(ide_task_t));
args.tfRegister[IDE_FEATURE_OFFSET] = SMART_ENABLE;
args.tfRegister[IDE_LCYL_OFFSET] = SMART_LCYL_PASS;
args.tfRegister[IDE_HCYL_OFFSET] = SMART_HCYL_PASS;
args.tfRegister[IDE_COMMAND_OFFSET] = WIN_SMART;
tf->feature = SMART_ENABLE;
tf->lbam = SMART_LCYL_PASS;
tf->lbah = SMART_HCYL_PASS;
tf->command = WIN_SMART;
args.command_type = IDE_DRIVE_TASK_NO_DATA;
args.handler = &task_no_data_intr;
return ide_raw_taskfile(drive, &args, NULL);
@ -570,13 +564,14 @@ static int smart_enable(ide_drive_t *drive)
static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd)
{
ide_task_t args;
struct ide_taskfile *tf = &args.tf;
memset(&args, 0, sizeof(ide_task_t));
args.tfRegister[IDE_FEATURE_OFFSET] = sub_cmd;
args.tfRegister[IDE_NSECTOR_OFFSET] = 0x01;
args.tfRegister[IDE_LCYL_OFFSET] = SMART_LCYL_PASS;
args.tfRegister[IDE_HCYL_OFFSET] = SMART_HCYL_PASS;
args.tfRegister[IDE_COMMAND_OFFSET] = WIN_SMART;
tf->feature = sub_cmd;
tf->nsect = 0x01;
tf->lbam = SMART_LCYL_PASS;
tf->lbah = SMART_HCYL_PASS;
tf->command = WIN_SMART;
args.command_type = IDE_DRIVE_TASK_IN;
args.data_phase = TASKFILE_IN;
args.handler = &task_in_intr;
@ -753,9 +748,9 @@ static int write_cache(ide_drive_t *drive, int arg)
if (ide_id_has_flush_cache(drive->id)) {
memset(&args, 0, sizeof(ide_task_t));
args.tfRegister[IDE_FEATURE_OFFSET] = (arg) ?
args.tf.feature = arg ?
SETFEATURES_EN_WCACHE : SETFEATURES_DIS_WCACHE;
args.tfRegister[IDE_COMMAND_OFFSET] = WIN_SETFEATURES;
args.tf.command = WIN_SETFEATURES;
args.command_type = IDE_DRIVE_TASK_NO_DATA;
args.handler = &task_no_data_intr;
err = ide_raw_taskfile(drive, &args, NULL);
@ -774,9 +769,9 @@ static int do_idedisk_flushcache (ide_drive_t *drive)
memset(&args, 0, sizeof(ide_task_t));
if (ide_id_has_flush_cache_ext(drive->id))
args.tfRegister[IDE_COMMAND_OFFSET] = WIN_FLUSH_CACHE_EXT;
args.tf.command = WIN_FLUSH_CACHE_EXT;
else
args.tfRegister[IDE_COMMAND_OFFSET] = WIN_FLUSH_CACHE;
args.tf.command = WIN_FLUSH_CACHE;
args.command_type = IDE_DRIVE_TASK_NO_DATA;
args.handler = &task_no_data_intr;
return ide_raw_taskfile(drive, &args, NULL);
@ -790,10 +785,9 @@ static int set_acoustic (ide_drive_t *drive, int arg)
return -EINVAL;
memset(&args, 0, sizeof(ide_task_t));
args.tfRegister[IDE_FEATURE_OFFSET] = (arg) ? SETFEATURES_EN_AAM :
SETFEATURES_DIS_AAM;
args.tfRegister[IDE_NSECTOR_OFFSET] = arg;
args.tfRegister[IDE_COMMAND_OFFSET] = WIN_SETFEATURES;
args.tf.feature = arg ? SETFEATURES_EN_AAM : SETFEATURES_DIS_AAM;
args.tf.nsect = arg;
args.tf.command = WIN_SETFEATURES;
args.command_type = IDE_DRIVE_TASK_NO_DATA;
args.handler = &task_no_data_intr;
ide_raw_taskfile(drive, &args, NULL);
@ -1057,7 +1051,7 @@ static int idedisk_open(struct inode *inode, struct file *filp)
if (drive->removable && idkp->openers == 1) {
ide_task_t args;
memset(&args, 0, sizeof(ide_task_t));
args.tfRegister[IDE_COMMAND_OFFSET] = WIN_DOORLOCK;
args.tf.command = WIN_DOORLOCK;
args.command_type = IDE_DRIVE_TASK_NO_DATA;
args.handler = &task_no_data_intr;
check_disk_change(inode->i_bdev);
@ -1084,7 +1078,7 @@ static int idedisk_release(struct inode *inode, struct file *filp)
if (drive->removable && idkp->openers == 1) {
ide_task_t args;
memset(&args, 0, sizeof(ide_task_t));
args.tfRegister[IDE_COMMAND_OFFSET] = WIN_DOORUNLOCK;
args.tf.command = WIN_DOORUNLOCK;
args.command_type = IDE_DRIVE_TASK_NO_DATA;
args.handler = &task_no_data_intr;
if (drive->doorlocking && ide_raw_taskfile(drive, &args, NULL))

61
drivers/ide/ide-io.c
View File

@ -189,15 +189,15 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
return ide_stopped;
}
if (ide_id_has_flush_cache_ext(drive->id))
args->tfRegister[IDE_COMMAND_OFFSET] = WIN_FLUSH_CACHE_EXT;
args->tf.command = WIN_FLUSH_CACHE_EXT;
else
args->tfRegister[IDE_COMMAND_OFFSET] = WIN_FLUSH_CACHE;
args->tf.command = WIN_FLUSH_CACHE;
args->command_type = IDE_DRIVE_TASK_NO_DATA;
args->handler = &task_no_data_intr;
return do_rw_taskfile(drive, args);
case idedisk_pm_standby: /* Suspend step 2 (standby) */
args->tfRegister[IDE_COMMAND_OFFSET] = WIN_STANDBYNOW1;
args->tf.command = WIN_STANDBYNOW1;
args->command_type = IDE_DRIVE_TASK_NO_DATA;
args->handler = &task_no_data_intr;
return do_rw_taskfile(drive, args);
@ -214,7 +214,7 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
return ide_stopped;
case idedisk_pm_idle: /* Resume step 2 (idle) */
args->tfRegister[IDE_COMMAND_OFFSET] = WIN_IDLEIMMEDIATE;
args->tf.command = WIN_IDLEIMMEDIATE;
args->command_type = IDE_DRIVE_TASK_NO_DATA;
args->handler = task_no_data_intr;
return do_rw_taskfile(drive, args);
@ -354,28 +354,31 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
rq->errors = !OK_STAT(stat,READY_STAT,BAD_STAT);
if (args) {
struct ide_taskfile *tf = &args->tf;
if (args->tf_in_flags.b.data) {
u16 data = hwif->INW(IDE_DATA_REG);
args->tfRegister[IDE_DATA_OFFSET] = (data) & 0xFF;
args->hobRegister[IDE_DATA_OFFSET] = (data >> 8) & 0xFF;
u16 data = hwif->INW(IDE_DATA_REG);
tf->data = data & 0xff;
tf->hob_data = (data >> 8) & 0xff;
}
args->tfRegister[IDE_ERROR_OFFSET] = err;
tf->error = err;
/* be sure we're looking at the low order bits */
hwif->OUTB(drive->ctl & ~0x80, IDE_CONTROL_REG);
args->tfRegister[IDE_NSECTOR_OFFSET] = hwif->INB(IDE_NSECTOR_REG);
args->tfRegister[IDE_SECTOR_OFFSET] = hwif->INB(IDE_SECTOR_REG);
args->tfRegister[IDE_LCYL_OFFSET] = hwif->INB(IDE_LCYL_REG);
args->tfRegister[IDE_HCYL_OFFSET] = hwif->INB(IDE_HCYL_REG);
args->tfRegister[IDE_SELECT_OFFSET] = hwif->INB(IDE_SELECT_REG);
args->tfRegister[IDE_STATUS_OFFSET] = stat;
tf->nsect = hwif->INB(IDE_NSECTOR_REG);
tf->lbal = hwif->INB(IDE_SECTOR_REG);
tf->lbam = hwif->INB(IDE_LCYL_REG);
tf->lbah = hwif->INB(IDE_HCYL_REG);
tf->device = hwif->INB(IDE_SELECT_REG);
tf->status = stat;
if (drive->addressing == 1) {
hwif->OUTB(drive->ctl|0x80, IDE_CONTROL_REG);
args->hobRegister[IDE_FEATURE_OFFSET] = hwif->INB(IDE_FEATURE_REG);
args->hobRegister[IDE_NSECTOR_OFFSET] = hwif->INB(IDE_NSECTOR_REG);
args->hobRegister[IDE_SECTOR_OFFSET] = hwif->INB(IDE_SECTOR_REG);
args->hobRegister[IDE_LCYL_OFFSET] = hwif->INB(IDE_LCYL_REG);
args->hobRegister[IDE_HCYL_OFFSET] = hwif->INB(IDE_HCYL_REG);
tf->hob_feature = hwif->INB(IDE_FEATURE_REG);
tf->hob_nsect = hwif->INB(IDE_NSECTOR_REG);
tf->hob_lbal = hwif->INB(IDE_SECTOR_REG);
tf->hob_lbam = hwif->INB(IDE_LCYL_REG);
tf->hob_lbah = hwif->INB(IDE_HCYL_REG);
}
}
} else if (blk_pm_request(rq)) {
@ -675,28 +678,28 @@ static ide_startstop_t drive_cmd_intr (ide_drive_t *drive)
static void ide_init_specify_cmd(ide_drive_t *drive, ide_task_t *task)
{
task->tfRegister[IDE_NSECTOR_OFFSET] = drive->sect;
task->tfRegister[IDE_SECTOR_OFFSET] = drive->sect;
task->tfRegister[IDE_LCYL_OFFSET] = drive->cyl;
task->tfRegister[IDE_HCYL_OFFSET] = drive->cyl>>8;
task->tfRegister[IDE_SELECT_OFFSET] = ((drive->head-1)|drive->select.all)&0xBF;
task->tfRegister[IDE_COMMAND_OFFSET] = WIN_SPECIFY;
task->tf.nsect = drive->sect;
task->tf.lbal = drive->sect;
task->tf.lbam = drive->cyl;
task->tf.lbah = drive->cyl >> 8;
task->tf.device = ((drive->head - 1) | drive->select.all) & ~ATA_LBA;
task->tf.command = WIN_SPECIFY;
task->handler = &set_geometry_intr;
}
static void ide_init_restore_cmd(ide_drive_t *drive, ide_task_t *task)
{
task->tfRegister[IDE_NSECTOR_OFFSET] = drive->sect;
task->tfRegister[IDE_COMMAND_OFFSET] = WIN_RESTORE;
task->tf.nsect = drive->sect;
task->tf.command = WIN_RESTORE;
task->handler = &recal_intr;
}
static void ide_init_setmult_cmd(ide_drive_t *drive, ide_task_t *task)
{
task->tfRegister[IDE_NSECTOR_OFFSET] = drive->mult_req;
task->tfRegister[IDE_COMMAND_OFFSET] = WIN_SETMULT;
task->tf.nsect = drive->mult_req;
task->tf.command = WIN_SETMULT;
task->handler = &set_multmode_intr;
}

12
drivers/ide/ide-iops.c
View File

@ -642,9 +642,9 @@ no_80w:
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->tf.command == WIN_SETFEATURES &&
args->tf.lbal > XFER_UDMA_2 &&
args->tf.feature == SETFEATURES_XFER) {
if (eighty_ninty_three(drive) == 0) {
printk(KERN_WARNING "%s: UDMA speeds >UDMA33 cannot "
"be set\n", drive->name);
@ -662,9 +662,9 @@ int ide_ata66_check (ide_drive_t *drive, ide_task_t *args)
*/
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->tf.command == WIN_SETFEATURES &&
args->tf.lbal >= XFER_SW_DMA_0 &&
args->tf.feature == SETFEATURES_XFER &&
(drive->id->dma_ultra ||
drive->id->dma_mword ||
drive->id->dma_1word))

3
drivers/ide/ide-lib.c
View File

@ -468,8 +468,7 @@ static void ide_dump_opcode(ide_drive_t *drive)
} else if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
ide_task_t *args = rq->special;
if (args) {
task_struct_t *tf = (task_struct_t *) args->tfRegister;
opcode = tf->command;
opcode = args->tf.command;
found = 1;
}
}

99
drivers/ide/ide-taskfile.c
View File

@ -66,12 +66,13 @@ static void taskfile_output_data(ide_drive_t *drive, void *buffer, u32 wcount)
int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
{
ide_task_t args;
memset(&args, 0, sizeof(ide_task_t));
args.tfRegister[IDE_NSECTOR_OFFSET] = 0x01;
args.tf.nsect = 0x01;
if (drive->media == ide_disk)
args.tfRegister[IDE_COMMAND_OFFSET] = WIN_IDENTIFY;
args.tf.command = WIN_IDENTIFY;
else
args.tfRegister[IDE_COMMAND_OFFSET] = WIN_PIDENTIFY;
args.tf.command = WIN_PIDENTIFY;
args.command_type = IDE_DRIVE_TASK_IN;
args.data_phase = TASKFILE_IN;
args.handler = &task_in_intr;
@ -81,8 +82,7 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
{
ide_hwif_t *hwif = HWIF(drive);
task_struct_t *taskfile = (task_struct_t *) task->tfRegister;
hob_struct_t *hobfile = (hob_struct_t *) task->hobRegister;
struct ide_taskfile *tf = &task->tf;
u8 HIHI = (drive->addressing == 1) ? 0xE0 : 0xEF;
/* ALL Command Block Executions SHALL clear nIEN, unless otherwise */
@ -93,35 +93,35 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
SELECT_MASK(drive, 0);
if (drive->addressing == 1) {
hwif->OUTB(hobfile->feature, IDE_FEATURE_REG);
hwif->OUTB(hobfile->sector_count, IDE_NSECTOR_REG);
hwif->OUTB(hobfile->sector_number, IDE_SECTOR_REG);
hwif->OUTB(hobfile->low_cylinder, IDE_LCYL_REG);
hwif->OUTB(hobfile->high_cylinder, IDE_HCYL_REG);
hwif->OUTB(tf->hob_feature, IDE_FEATURE_REG);
hwif->OUTB(tf->hob_nsect, IDE_NSECTOR_REG);
hwif->OUTB(tf->hob_lbal, IDE_SECTOR_REG);
hwif->OUTB(tf->hob_lbam, IDE_LCYL_REG);
hwif->OUTB(tf->hob_lbah, IDE_HCYL_REG);
}
hwif->OUTB(taskfile->feature, IDE_FEATURE_REG);
hwif->OUTB(taskfile->sector_count, IDE_NSECTOR_REG);
hwif->OUTB(taskfile->sector_number, IDE_SECTOR_REG);
hwif->OUTB(taskfile->low_cylinder, IDE_LCYL_REG);
hwif->OUTB(taskfile->high_cylinder, IDE_HCYL_REG);
hwif->OUTB(tf->feature, IDE_FEATURE_REG);
hwif->OUTB(tf->nsect, IDE_NSECTOR_REG);
hwif->OUTB(tf->lbal, IDE_SECTOR_REG);
hwif->OUTB(tf->lbam, IDE_LCYL_REG);
hwif->OUTB(tf->lbah, IDE_HCYL_REG);
hwif->OUTB((taskfile->device_head & HIHI) | drive->select.all, IDE_SELECT_REG);
hwif->OUTB((tf->device & HIHI) | drive->select.all, IDE_SELECT_REG);
if (task->handler != NULL) {
if (task->prehandler != NULL) {
hwif->OUTBSYNC(drive, taskfile->command, IDE_COMMAND_REG);
hwif->OUTBSYNC(drive, tf->command, IDE_COMMAND_REG);
ndelay(400); /* FIXME */
return task->prehandler(drive, task->rq);
}
ide_execute_command(drive, taskfile->command, task->handler, WAIT_WORSTCASE, NULL);
ide_execute_command(drive, tf->command, task->handler, WAIT_WORSTCASE, NULL);
return ide_started;
}
if (!drive->using_dma)
return ide_stopped;
switch (taskfile->command) {
switch (tf->command) {
case WIN_WRITEDMA_ONCE:
case WIN_WRITEDMA:
case WIN_WRITEDMA_EXT:
@ -130,7 +130,7 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
case WIN_READDMA_EXT:
case WIN_IDENTIFY_DMA:
if (!hwif->dma_setup(drive)) {
hwif->dma_exec_cmd(drive, taskfile->command);
hwif->dma_exec_cmd(drive, tf->command);
hwif->dma_start(drive);
return ide_started;
}
@ -483,7 +483,7 @@ static int ide_diag_taskfile(ide_drive_t *drive, ide_task_t *args, unsigned long
*/
if (args->command_type != IDE_DRIVE_TASK_NO_DATA) {
if (data_size == 0)
rq.nr_sectors = (args->hobRegister[IDE_NSECTOR_OFFSET] << 8) | args->tfRegister[IDE_NSECTOR_OFFSET];
rq.nr_sectors = (args->tf.hob_nsect << 8) | args->tf.nsect;
else
rq.nr_sectors = data_size / SECTOR_SIZE;
@ -519,8 +519,6 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
ide_task_t args;
u8 *outbuf = NULL;
u8 *inbuf = NULL;
u8 *argsptr = args.tfRegister;
u8 *hobsptr = args.hobRegister;
int err = 0;
int tasksize = sizeof(struct ide_task_request_s);
unsigned int taskin = 0;
@ -572,9 +570,9 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
}
memset(&args, 0, sizeof(ide_task_t));
memcpy(argsptr, req_task->io_ports, HDIO_DRIVE_TASK_HDR_SIZE);
memcpy(hobsptr, req_task->hob_ports, HDIO_DRIVE_HOB_HDR_SIZE);
memcpy(&args.tf_array[0], req_task->hob_ports, HDIO_DRIVE_HOB_HDR_SIZE - 2);
memcpy(&args.tf_array[6], req_task->io_ports, HDIO_DRIVE_TASK_HDR_SIZE);
args.tf_in_flags = req_task->in_flags;
args.tf_out_flags = req_task->out_flags;
args.data_phase = req_task->data_phase;
@ -628,8 +626,8 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
goto abort;
}
memcpy(req_task->io_ports, &(args.tfRegister), HDIO_DRIVE_TASK_HDR_SIZE);
memcpy(req_task->hob_ports, &(args.hobRegister), HDIO_DRIVE_HOB_HDR_SIZE);
memcpy(req_task->hob_ports, &args.tf_array[0], HDIO_DRIVE_HOB_HDR_SIZE - 2);
memcpy(req_task->io_ports, &args.tf_array[6], HDIO_DRIVE_TASK_HDR_SIZE);
req_task->in_flags = args.tf_in_flags;
req_task->out_flags = args.tf_out_flags;
@ -688,6 +686,7 @@ int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
u8 xfer_rate = 0;
int argsize = 4;
ide_task_t tfargs;
struct ide_taskfile *tf = &tfargs.tf;
if (NULL == (void *) arg) {
struct request rq;
@ -699,13 +698,10 @@ int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
return -EFAULT;
memset(&tfargs, 0, sizeof(ide_task_t));
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];
tf->feature = args[2];
tf->nsect = args[3];
tf->lbal = args[1];
tf->command = args[0];
if (args[3]) {
argsize = 4 + (SECTOR_WORDS * 4 * args[3]);
@ -767,8 +763,7 @@ int ide_task_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
ide_startstop_t flagged_taskfile (ide_drive_t *drive, ide_task_t *task)
{
ide_hwif_t *hwif = HWIF(drive);
task_struct_t *taskfile = (task_struct_t *) task->tfRegister;
hob_struct_t *hobfile = (hob_struct_t *) task->hobRegister;
struct ide_taskfile *tf = &task->tf;
if (task->data_phase == TASKFILE_MULTI_IN ||
task->data_phase == TASKFILE_MULTI_OUT) {
@ -798,34 +793,32 @@ ide_startstop_t flagged_taskfile (ide_drive_t *drive, ide_task_t *task)
hwif->OUTB(drive->ctl, IDE_CONTROL_REG);
SELECT_MASK(drive, 0);
if (task->tf_out_flags.b.data) {
u16 data = taskfile->data + (hobfile->data << 8);
hwif->OUTW(data, IDE_DATA_REG);
}
if (task->tf_out_flags.b.data)
hwif->OUTW((tf->hob_data << 8) | tf->data, IDE_DATA_REG);
/* (ks) send hob registers first */
if (task->tf_out_flags.b.nsector_hob)
hwif->OUTB(hobfile->sector_count, IDE_NSECTOR_REG);
hwif->OUTB(tf->hob_nsect, IDE_NSECTOR_REG);
if (task->tf_out_flags.b.sector_hob)
hwif->OUTB(hobfile->sector_number, IDE_SECTOR_REG);
hwif->OUTB(tf->hob_lbal, IDE_SECTOR_REG);
if (task->tf_out_flags.b.lcyl_hob)
hwif->OUTB(hobfile->low_cylinder, IDE_LCYL_REG);
hwif->OUTB(tf->hob_lbam, IDE_LCYL_REG);
if (task->tf_out_flags.b.hcyl_hob)
hwif->OUTB(hobfile->high_cylinder, IDE_HCYL_REG);
hwif->OUTB(tf->hob_lbah, IDE_HCYL_REG);
/* (ks) Send now the standard registers */
if (task->tf_out_flags.b.error_feature)
hwif->OUTB(taskfile->feature, IDE_FEATURE_REG);
hwif->OUTB(tf->feature, IDE_FEATURE_REG);
/* refers to number of sectors to transfer */
if (task->tf_out_flags.b.nsector)
hwif->OUTB(taskfile->sector_count, IDE_NSECTOR_REG);
hwif->OUTB(tf->nsect, IDE_NSECTOR_REG);
/* refers to sector offset or start sector */
if (task->tf_out_flags.b.sector)
hwif->OUTB(taskfile->sector_number, IDE_SECTOR_REG);
hwif->OUTB(tf->lbal, IDE_SECTOR_REG);
if (task->tf_out_flags.b.lcyl)
hwif->OUTB(taskfile->low_cylinder, IDE_LCYL_REG);
hwif->OUTB(tf->lbam, IDE_LCYL_REG);
if (task->tf_out_flags.b.hcyl)
hwif->OUTB(taskfile->high_cylinder, IDE_HCYL_REG);
hwif->OUTB(tf->lbah, IDE_HCYL_REG);
/*
* (ks) In the flagged taskfile approch, we will use all specified
@ -833,7 +826,7 @@ ide_startstop_t flagged_taskfile (ide_drive_t *drive, ide_task_t *task)
* select bit (master/slave) in the drive_head register. We must make
* sure that the desired drive is selected.
*/
hwif->OUTB(taskfile->device_head | drive->select.all, IDE_SELECT_REG);
hwif->OUTB(tf->device | drive->select.all, IDE_SELECT_REG);
switch(task->data_phase) {
case TASKFILE_OUT_DMAQ:
@ -844,7 +837,7 @@ ide_startstop_t flagged_taskfile (ide_drive_t *drive, ide_task_t *task)
break;
if (!hwif->dma_setup(drive)) {
hwif->dma_exec_cmd(drive, taskfile->command);
hwif->dma_exec_cmd(drive, tf->command);
hwif->dma_start(drive);
return ide_started;
}
@ -856,11 +849,11 @@ ide_startstop_t flagged_taskfile (ide_drive_t *drive, ide_task_t *task)
/* Issue the command */
if (task->prehandler) {
hwif->OUTBSYNC(drive, taskfile->command, IDE_COMMAND_REG);
hwif->OUTBSYNC(drive, tf->command, IDE_COMMAND_REG);
ndelay(400); /* FIXME */
return task->prehandler(drive, task->rq);
}
ide_execute_command(drive, taskfile->command, task->handler, WAIT_WORSTCASE, NULL);
ide_execute_command(drive, tf->command, task->handler, WAIT_WORSTCASE, NULL);
return ide_started;
}

4
include/linux/hdreg.h
View File

@ -117,7 +117,7 @@ typedef union ide_reg_valid_s {
typedef struct ide_task_request_s {
__u8 io_ports[8];
__u8 hob_ports[8];
__u8 hob_ports[8]; /* bytes 6 and 7 are unused */
ide_reg_valid_t out_flags;
ide_reg_valid_t in_flags;
int data_phase;
@ -139,6 +139,7 @@ struct hd_drive_cmd_hdr {
__u8 sector_count;
};
#ifndef __KERNEL__
typedef struct hd_drive_task_hdr {
__u8 data;
__u8 feature;
@ -160,6 +161,7 @@ typedef struct hd_drive_hob_hdr {
__u8 device_head;
__u8 control;
} hob_struct_t;
#endif
#define TASKFILE_INVALID 0x7fff
#define TASKFILE_48 0x8000

43
include/linux/ide.h
View File

@ -103,8 +103,6 @@ typedef unsigned char byte; /* used everywhere */
#define IDE_FEATURE_OFFSET IDE_ERROR_OFFSET
#define IDE_COMMAND_OFFSET IDE_STATUS_OFFSET
#define IDE_CONTROL_OFFSET_HOB (7)
#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])
@ -1062,15 +1060,40 @@ extern void ide_end_drive_cmd(ide_drive_t *, u8, u8);
*/
extern int ide_wait_cmd(ide_drive_t *, u8, u8, u8, u8, u8 *);
struct ide_taskfile {
u8 hob_data; /* 0: high data byte (for TASKFILE IOCTL) */
u8 hob_feature; /* 1-5: additional data to support LBA48 */
u8 hob_nsect;
u8 hob_lbal;
u8 hob_lbam;
u8 hob_lbah;
u8 data; /* 6: low data byte (for TASKFILE IOCTL) */
union { /*  7: */
u8 error; /* read: error */
u8 feature; /* write: feature */
};
u8 nsect; /* 8: number of sectors */
u8 lbal; /* 9: LBA low */
u8 lbam; /* 10: LBA mid */
u8 lbah; /* 11: LBA high */
u8 device; /* 12: device select */
union { /* 13: */
u8 status; /*  read: status  */
u8 command; /* write: command */
};
};
typedef struct ide_task_s {
/*
* struct hd_drive_task_hdr tf;
* task_struct_t tf;
* struct hd_drive_hob_hdr hobf;
* hob_struct_t hobf;
*/
u8 tfRegister[8];
u8 hobRegister[8];
union {
struct ide_taskfile tf;
u8 tf_array[14];
};
ide_reg_valid_t tf_out_flags;
ide_reg_valid_t tf_in_flags;
int data_phase;