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ide: add ide_tf_read() helper

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* Factor out code reading taskfile registers from ide_end_drive_cmd()
  to the new ide_tf_read() helper.

* Add IDE_TFLAG_IN_* taskfile flags to indicate the need to load
  particular IDE taskfile register in ide_tf_read().

* Update ide_end_drive_cmd() to set respective IDE_TFLAG_IN_* taksfile flags.

* Add ide_get_lba_addr() for getting LBA sector address from taskfile struct.

* Factor out code getting sector address from ide_dump_ata_status()
  to the new ide_dump_sector() function.

* Convert ide_dump_sector() to use ide_tf_read() and ide_get_lba_addr().

* Remove no longer needed ide_read_24().

The only change in functionality caused by this patch is that
ide_dump_ata_status() no longer prints "high"/"low" parts of LBA48
sector address (of course LBA48 sector address is still printed).

Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-01-25 22:17:17 +01:00
parent d32444771b
commit c2b57cdc1d
4 changed files with 106 additions and 63 deletions
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8
drivers/ide/ide-iops.c
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@ -158,14 +158,6 @@ void default_hwif_mmiops (ide_hwif_t *hwif)
EXPORT_SYMBOL(default_hwif_mmiops);
u32 ide_read_24 (ide_drive_t *drive)
{
u8 sect = HWIF(drive)->INB(IDE_SECTOR_REG);
u8 lcyl = HWIF(drive)->INB(IDE_LCYL_REG);
u8 hcyl = HWIF(drive)->INB(IDE_HCYL_REG);
return (hcyl<<16)|(lcyl<<8)|sect;
}
void SELECT_DRIVE (ide_drive_t *drive)
{
if (HWIF(drive)->selectproc)