diff options
| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-07-23 19:55:52 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-07-23 19:55:52 +0200 |
| commit | 1f6d8a0fd8f6cc5ee2219a8cf9b2da16dfd67397 (patch) | |
| tree | 4a858f4525ea67cd325ec370f4823adc1f7c0450 /drivers/ide/ide-iops.c | |
| parent | b73c7ee25da6133f97f47ffd3557288417da7c76 (diff) | |
ide: add ->read_altstatus method
* Remove ide_read_altstatus() inline helper.
* Add ->read_altstatus method for reading ATA Alternate Status
register and use it instead of ->INB.
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-iops.c')
| -rw-r--r-- | drivers/ide/ide-iops.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 086eceaeeafd..e106954e13f9 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -119,6 +119,14 @@ static u8 ide_read_status(ide_hwif_t *hwif) return inb(hwif->io_ports.status_addr); } +static u8 ide_read_altstatus(ide_hwif_t *hwif) +{ + if (hwif->host_flags & IDE_HFLAG_MMIO) + return readb((void __iomem *)hwif->io_ports.ctl_addr); + else + return inb(hwif->io_ports.ctl_addr); +} + static u8 ide_read_sff_dma_status(ide_hwif_t *hwif) { if (hwif->host_flags & IDE_HFLAG_MMIO) @@ -349,6 +357,7 @@ void default_hwif_transport(ide_hwif_t *hwif) { hwif->exec_command = ide_exec_command; hwif->read_status = ide_read_status; + hwif->read_altstatus = ide_read_altstatus; hwif->read_sff_dma_status = ide_read_sff_dma_status; hwif->tf_load = ide_tf_load; @@ -511,7 +520,7 @@ int drive_is_ready (ide_drive_t *drive) * about possible isa-pnp and pci-pnp issues yet. */ if (hwif->io_ports.ctl_addr) - stat = ide_read_altstatus(drive); + stat = hwif->read_altstatus(hwif); else /* Note: this may clear a pending IRQ!! */ stat = hwif->read_status(hwif); @@ -724,7 +733,7 @@ int ide_driveid_update(ide_drive_t *drive) } msleep(50); /* give drive a breather */ - stat = ide_read_altstatus(drive); + stat = hwif->read_altstatus(hwif); } while (stat & BUSY_STAT); msleep(50); /* wait for IRQ and DRQ_STAT */ |