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ide: move drive_is_ready() to ide-io.c

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Move drive_is_ready() to ide-io.c, then make it static.

Also make some minor CodingStyle fixups while at it.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2009-03-24 23:22:43 +01:00
parent 75a0cff4e8
commit b6a45a0b1e
3 changed files with 23 additions and 27 deletions
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23
drivers/ide/ide-io.c
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@@ -887,6 +887,29 @@ static void ide_plug_device(ide_drive_t *drive)
spin_unlock_irqrestore(q->queue_lock, flags);
}
static int drive_is_ready(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
u8 stat = 0;
if (drive->waiting_for_dma)
return hwif->dma_ops->dma_test_irq(drive);
if (hwif->io_ports.ctl_addr &&
(hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0)
stat = hwif->tp_ops->read_altstatus(hwif);
else
/* Note: this may clear a pending IRQ!! */
stat = hwif->tp_ops->read_status(hwif);
if (stat & ATA_BUSY)
/* drive busy: definitely not interrupting */
return 0;
/* drive ready: *might* be interrupting */
return 1;
}
/**
* ide_timer_expiry - handle lack of an IDE interrupt
* @data: timer callback magic (hwif)