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sl82c105: implement test_irq() method 

Implement test_irq() method.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Sergei Shtylyov 2009-06-15 18:53:00 +02:00 committed by Bartlomiej Zolnierkiewicz
parent ec053e4ee9
commit 3779f818a4
1 changed files with 11 additions and 0 deletions
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11
drivers/ide/sl82c105.c
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@ -114,6 +114,16 @@ static void sl82c105_set_dma_mode(ide_drive_t *drive, const u8 speed)
drive->drive_data |= (unsigned long)drv_ctrl << 16;
}
static int sl82c105_test_irq(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
u32 val, mask = hwif->channel ? CTRL_IDE_IRQB : CTRL_IDE_IRQA;
pci_read_config_dword(dev, 0x40, &val);
return (val & mask) ? 1 : 0;
}
/*
* The SL82C105 holds off all IDE interrupts while in DMA mode until
* all DMA activity is completed. Sometimes this causes problems (eg,
@ -288,6 +298,7 @@ static const struct ide_port_ops sl82c105_port_ops = {
.set_pio_mode = sl82c105_set_pio_mode,
.set_dma_mode = sl82c105_set_dma_mode,
.resetproc = sl82c105_resetproc,
.test_irq = sl82c105_test_irq,
};
static const struct ide_dma_ops sl82c105_dma_ops = {