示例#1
0
static void svia_noop_freeze(struct ata_port *ap)
{
	/* Some VIA controllers choke if ATA_NIEN is manipulated in
	 * certain way.  Leave it alone and just clear pending IRQ.
	 */
	ap->ops->sff_check_status(ap);
	ata_bmdma_irq_clear(ap);
}
示例#2
0
static void cmd64x_sff_irq_clear(struct ata_port *ap)
{
	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
	int irq_reg = ap->port_no ? ARTTIM23 : CFR;
	u8 irq_stat;

	ata_bmdma_irq_clear(ap);

	/* Reading the register should be enough to clear the interrupt */
	pci_read_config_byte(pdev, irq_reg, &irq_stat);
}
示例#3
0
static void cmd648_sff_irq_clear(struct ata_port *ap)
{
	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
	unsigned long base = pci_resource_start(pdev, 4);
	int irq_mask = ap->port_no ? MRDMODE_INTR_CH1 : MRDMODE_INTR_CH0;
	u8 mrdmode;

	ata_bmdma_irq_clear(ap);

	/* Clear this port's interrupt bit (leaving the other port alone) */
	mrdmode  = inb(base + 1);
	mrdmode &= ~(MRDMODE_INTR_CH0 | MRDMODE_INTR_CH1);
	outb(mrdmode | irq_mask, base + 1);
}