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authorSergei Shtylyov <sshtylyov@ru.mvista.com>2009-06-15 18:53:00 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-06-15 18:53:00 +0200
commit3779f818a42879038c4be8bc83123432b774279d (patch)
treec5177aeb0858cdf85a0947d7cd407e9f70bd732a /drivers/ide/sl82c105.c
parentsiimage: implement test_irq() method (diff)
downloadlinux-3779f818a42879038c4be8bc83123432b774279d.tar.xz
linux-3779f818a42879038c4be8bc83123432b774279d.zip
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>
Diffstat (limited to 'drivers/ide/sl82c105.c')
-rw-r--r--drivers/ide/sl82c105.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/ide/sl82c105.c b/drivers/ide/sl82c105.c
index 88ac47085cd9..6246bea585c4 100644
--- a/drivers/ide/sl82c105.c
+++ b/drivers/ide/sl82c105.c
@@ -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 = {