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Commit e0321fbe authored by Sergei Shtylyov's avatar Sergei Shtylyov Committed by Bartlomiej Zolnierkiewicz
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pdc202xx_old: implement test_irq() method (take 2) 



Implement test_irq() method based on the driver's former dma_test_irq() method.

Signed-off-by: default avatarSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 628df2f3

drivers/ide/pdc202xx_old.c

+22 −0
Original line number Diff line number Diff line
@@ -104,6 +104,27 @@ static void pdc202xx_set_pio_mode(ide_drive_t *drive, const u8 pio) 
	pdc202xx_set_mode(drive, XFER_PIO_0 + pio);

}



static int pdc202xx_test_irq(ide_hwif_t *hwif)

{

	struct pci_dev *dev	= to_pci_dev(hwif->dev);

	unsigned long high_16	= pci_resource_start(dev, 4);

	u8 sc1d			= inb(high_16 + 0x1d);



	if (hwif->channel) {

		/*

		 * bit 7: error, bit 6: interrupting,

		 * bit 5: FIFO full, bit 4: FIFO empty

		 */

		return ((sc1d & 0x50) == 0x40) ? 1 : 0;

	} else	{

		/*

		 * bit 3: error, bit 2: interrupting,

		 * bit 1: FIFO full, bit 0: FIFO empty

		 */

		return ((sc1d & 0x05) == 0x04) ? 1 : 0;

	}

}



static u8 pdc2026x_cable_detect(ide_hwif_t *hwif)

{

	struct pci_dev *dev = to_pci_dev(hwif->dev);
@@ -231,6 +252,7 @@ static void __devinit pdc202ata4_fixup_irq(struct pci_dev *dev, 
static const struct ide_port_ops pdc20246_port_ops = {

	.set_pio_mode		= pdc202xx_set_pio_mode,

	.set_dma_mode		= pdc202xx_set_mode,

	.test_irq		= pdc202xx_test_irq,

};



static const struct ide_port_ops pdc2026x_port_ops = {