Bartlomiej Zolnierkiewicz wrote:
* 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.
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Nearly-acked-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>
Index: b/drivers/ide/ide-disk.c
===================================================================
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
[...]
+ if ((tf->command & 0x01) == 0) {
+ u32 high, low;
Isn't newline needed after declarations?
+ 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 */
}
[...]
@@ -422,33 +417,29 @@ static unsigned long idedisk_set_max_add
[...]
/* 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->command & 0x01) == 0) {
+ u32 high, low;
Again missing newline...
+ 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++;
}
@@ -582,12 +573,13 @@ static sector_t idedisk_capacity (ide_dr
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);
@@ -596,13 +588,14 @@ static int smart_enable(ide_drive_t *dri
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;
I guess the code above and below were menat to have the same = indentation...
args.command_type = IDE_DRIVE_TASK_IN;
args.data_phase = TASKFILE_IN;
args.handler = &task_in_intr;
@@ -808,9 +801,9 @@ static int write_cache(ide_drive_t *driv
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;
Same here...
args.command_type = IDE_DRIVE_TASK_NO_DATA;
args.handler = &task_no_data_intr;
err = ide_raw_taskfile(drive, &args, NULL);
@@ -829,9 +822,9 @@ static int do_idedisk_flushcache (ide_dr
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;
... and here...
args.command_type = IDE_DRIVE_TASK_NO_DATA;
args.handler = &task_no_data_intr;
return ide_raw_taskfile(drive, &args, NULL);
@@ -845,10 +838,9 @@ static int set_acoustic (ide_drive_t *dr
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;
... and here...
args.command_type = IDE_DRIVE_TASK_NO_DATA;
args.handler = &task_no_data_intr;
ide_raw_taskfile(drive, &args, NULL);
@@ -1115,7 +1107,7 @@ static int idedisk_open(struct inode *in
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;
... and here...
args.command_type = IDE_DRIVE_TASK_NO_DATA;
args.handler = &task_no_data_intr;
check_disk_change(inode->i_bdev);
@@ -1142,7 +1134,7 @@ static int idedisk_release(struct inode
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;
... and here...
args.command_type = IDE_DRIVE_TASK_NO_DATA;
args.handler = &task_no_data_intr;
if (drive->doorlocking && ide_raw_taskfile(drive, &args, NULL))
Index: b/drivers/ide/ide-io.c
===================================================================
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -189,15 +189,15 @@ static ide_startstop_t ide_start_power_s
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;
... and here...
args->command_type = IDE_DRIVE_TASK_NO_DATA;
args->handler = &task_no_data_intr;
return do_rw_taskfile(drive, args);
[...]
@@ -387,28 +387,30 @@ void ide_end_drive_cmd (ide_drive_t *dri
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);
Again, no newline after declaration block.
[...]
@@ -707,28 +709,28 @@ static ide_startstop_t drive_cmd_intr (i
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) & 0xBF;
Well, if you started using ATA_LBA, s/0xBF/~ATA_LBA.
+ task->tf.command = WIN_SPECIFY;
[...]
Index: b/drivers/ide/ide-taskfile.c
===================================================================
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
[...]
/* (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
Well, maybe it time to fix typo in approAch? :-)
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -103,8 +103,6 @@ typedef unsigned char byte; /* used ever
#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])
@@ -1072,15 +1070,33 @@ extern void ide_end_drive_cmd(ide_drive_
*/
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) */
I wonder who needs to read/write the data reg. (even with HOB)? :-O
MBR, Sergei
-
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