From 3779f818a42879038c4be8bc83123432b774279d Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Mon, 15 Jun 2009 18:53:00 +0200 Subject: [PATCH] sl82c105: implement test_irq() method Implement test_irq() method. Signed-off-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/sl82c105.c | 11 +++++++++++ 1 file changed, 11 insertions(+) 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 = { -- 2.20.1