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ide: add ->set_irq method

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Add ->set_irq method for setting nIEN bit of ATA Device Control
register and use it instead of ide_set_irq().

While at it:

* Use ->set_irq in init_irq() and do_reset1().

* Don't use HWIF() macro in ide_check_pm_state().

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 1f6d8a0fd8
commit 6e6afb3b74
7 changed files with 78 additions and 30 deletions
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37
drivers/ide/ide-iops.c
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@ -135,6 +135,23 @@ static u8 ide_read_sff_dma_status(ide_hwif_t *hwif)
return inb(hwif->dma_base + ATA_DMA_STATUS);
}
static void ide_set_irq(ide_hwif_t *hwif, int on)
{
u8 ctl = ATA_DEVCTL_OBS;
if (on == 4) { /* hack for SRST */
ctl |= 4;
on &= ~4;
}
ctl |= on ? 0 : 2;
if (hwif->host_flags & IDE_HFLAG_MMIO)
writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr);
else
outb(ctl, hwif->io_ports.ctl_addr);
}
static void ide_tf_load(ide_drive_t *drive, ide_task_t *task)
{
ide_hwif_t *hwif = drive->hwif;
@ -360,6 +377,8 @@ void default_hwif_transport(ide_hwif_t *hwif)
hwif->read_altstatus = ide_read_altstatus;
hwif->read_sff_dma_status = ide_read_sff_dma_status;
hwif->set_irq = ide_set_irq;
hwif->tf_load = ide_tf_load;
hwif->tf_read = ide_tf_read;
@ -722,7 +741,7 @@ int ide_driveid_update(ide_drive_t *drive)
*/
SELECT_MASK(drive, 1);
ide_set_irq(drive, 0);
hwif->set_irq(hwif, 0);
msleep(50);
hwif->exec_command(hwif, WIN_IDENTIFY);
timeout = jiffies + WAIT_WORSTCASE;
@ -808,12 +827,12 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
SELECT_DRIVE(drive);
SELECT_MASK(drive, 0);
udelay(1);
ide_set_irq(drive, 0);
hwif->set_irq(hwif, 0);
hwif->OUTB(speed, io_ports->nsect_addr);
hwif->OUTB(SETFEATURES_XFER, io_ports->feature_addr);
hwif->exec_command(hwif, WIN_SETFEATURES);
if (drive->quirk_list == 2)
ide_set_irq(drive, 1);
hwif->set_irq(hwif, 1);
error = __ide_wait_stat(drive, drive->ready_stat,
BUSY_STAT|DRQ_STAT|ERR_STAT,
@ -1129,7 +1148,6 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
ide_hwgroup_t *hwgroup;
struct ide_io_ports *io_ports;
const struct ide_port_ops *port_ops;
u8 ctl;
spin_lock_irqsave(&ide_lock, flags);
hwif = HWIF(drive);
@ -1174,16 +1192,15 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
* immediate interrupt due to the edge transition it produces.
* This single interrupt gives us a "fast poll" for drives that
* recover from reset very quickly, saving us the first 50ms wait time.
*
* TODO: add ->softreset method and stop abusing ->set_irq
*/
/* set SRST and nIEN */
hwif->OUTBSYNC(hwif, ATA_DEVCTL_OBS | 6, io_ports->ctl_addr);
hwif->set_irq(hwif, 4);
/* more than enough time */
udelay(10);
if (drive->quirk_list == 2)
ctl = ATA_DEVCTL_OBS; /* clear SRST and nIEN */
else
ctl = ATA_DEVCTL_OBS | 2; /* clear SRST, leave nIEN */
hwif->OUTBSYNC(hwif, ctl, io_ports->ctl_addr);
/* clear SRST, leave nIEN (unless device is on the quirk list) */
hwif->set_irq(hwif, drive->quirk_list == 2);
/* more than enough time */
udelay(10);
hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;