Implement test_irq() method based on the driver's former dma_test_irq() method.
Signed-off-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>
---
The patch is atop of ide-2.6.git 'for-next' branch.
Bart, it wouldn't hurt to check this against the documentation...
drivers/ide/pdc202xx_old.c | 13 +++++++++++++
1 files changed, 13 insertions(+)
Index: ide-2.6/drivers/ide/pdc202xx_old.c
===================================================================
--- ide-2.6.orig/drivers/ide/pdc202xx_old.c
+++ ide-2.6/drivers/ide/pdc202xx_old.c
@@ -104,6 +104,18 @@ static void pdc202xx_set_pio_mode(ide_dr
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)
+ return ((sc1d & 0x50) == 0x40) ? 1 : 0;
+ else
+ 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 +243,7 @@ static void __devinit pdc202ata4_fixup_i
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 = {
--
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