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ide: add ->read_status method

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* Remove ide_read_status() inline helper.

* Add ->read_status method for reading ATA Status register
  and use it instead of ->INB.

While at it:

* Don't use HWGROUP() macro.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-07-23 19:55:52 +02:00
parent c6dfa867bb
commit b73c7ee25d
15 changed files with 103 additions and 69 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/ide/ide-taskfile.c
View File

@ -124,7 +124,8 @@ EXPORT_SYMBOL_GPL(do_rw_taskfile);
*/
static ide_startstop_t set_multmode_intr(ide_drive_t *drive)
{
u8 stat = ide_read_status(drive);
ide_hwif_t *hwif = drive->hwif;
u8 stat = hwif->read_status(hwif);
if (OK_STAT(stat, READY_STAT, BAD_STAT))
drive->mult_count = drive->mult_req;
@ -141,10 +142,11 @@ static ide_startstop_t set_multmode_intr(ide_drive_t *drive)
*/
static ide_startstop_t set_geometry_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
int retries = 5;
u8 stat;
while (((stat = ide_read_status(drive)) & BUSY_STAT) && retries--)
while (((stat = hwif->read_status(hwif)) & BUSY_STAT) && retries--)
udelay(10);
if (OK_STAT(stat, READY_STAT, BAD_STAT))
@ -162,7 +164,8 @@ static ide_startstop_t set_geometry_intr(ide_drive_t *drive)
*/
static ide_startstop_t recal_intr(ide_drive_t *drive)
{
u8 stat = ide_read_status(drive);
ide_hwif_t *hwif = drive->hwif;
u8 stat = hwif->read_status(hwif);
if (!OK_STAT(stat, READY_STAT, BAD_STAT))
return ide_error(drive, "recal_intr", stat);
@ -174,11 +177,12 @@ static ide_startstop_t recal_intr(ide_drive_t *drive)
*/
static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
{
ide_task_t *args = HWGROUP(drive)->rq->special;
ide_hwif_t *hwif = drive->hwif;
ide_task_t *args = hwif->hwgroup->rq->special;
u8 stat;
local_irq_enable_in_hardirq();
stat = ide_read_status(drive);
stat = hwif->read_status(hwif);
if (!OK_STAT(stat, READY_STAT, BAD_STAT))
return ide_error(drive, "task_no_data_intr", stat);
@ -192,6 +196,7 @@ static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
static u8 wait_drive_not_busy(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
int retries;
u8 stat;
@ -200,7 +205,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive)
* take up to 6 ms on some ATAPI devices, so we will wait max 10 ms.
*/
for (retries = 0; retries < 1000; retries++) {
stat = ide_read_status(drive);
stat = hwif->read_status(hwif);
if (stat & BUSY_STAT)
udelay(10);
@ -383,8 +388,8 @@ static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq
static ide_startstop_t task_in_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = HWGROUP(drive)->rq;
u8 stat = ide_read_status(drive);
struct request *rq = hwif->hwgroup->rq;
u8 stat = hwif->read_status(hwif);
/* Error? */
if (stat & ERR_STAT)
@ -418,7 +423,7 @@ static ide_startstop_t task_out_intr (ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = HWGROUP(drive)->rq;
u8 stat = ide_read_status(drive);
u8 stat = hwif->read_status(hwif);
if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
return task_error(drive, rq, __func__, stat);