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r8169: irq mask helpers.

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Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>
This commit is contained in:
Francois Romieu 2012-01-26 12:59:08 +01:00
parent 3e990ff5f1
commit 9085cdfa2f
1 changed files with 30 additions and 7 deletions
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37
drivers/net/ethernet/realtek/r8169.c
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@ -1184,6 +1184,29 @@ static u8 rtl8168d_efuse_read(void __iomem *ioaddr, int reg_addr)
return value;
}
static u16 rtl_get_events(struct rtl8169_private *tp)
{
void __iomem *ioaddr = tp->mmio_addr;
return RTL_R16(IntrStatus);
}
static void rtl_ack_events(struct rtl8169_private *tp, u16 bits)
{
void __iomem *ioaddr = tp->mmio_addr;
RTL_W16(IntrStatus, bits);
mmiowb();
}
static void rtl_irq_disable(struct rtl8169_private *tp)
{
void __iomem *ioaddr = tp->mmio_addr;
RTL_W16(IntrMask, 0);
mmiowb();
}
static void rtl_irq_enable(struct rtl8169_private *tp, u16 bits)
{
void __iomem *ioaddr = tp->mmio_addr;
@ -1195,8 +1218,8 @@ static void rtl8169_irq_mask_and_ack(struct rtl8169_private *tp)
{
void __iomem *ioaddr = tp->mmio_addr;
RTL_W16(IntrMask, 0x0000);
RTL_W16(IntrStatus, tp->intr_event);
rtl_irq_disable(tp);
rtl_ack_events(tp, tp->intr_event);
RTL_R8(ChipCmd);
}
@ -4057,11 +4080,11 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
rtl_init_rxcfg(tp);
RTL_W16(IntrMask, 0x0000);
rtl_irq_disable(tp);
rtl_hw_reset(tp);
RTL_W16(IntrStatus, 0xffff);
rtl_ack_events(tp, 0xffff);
pci_set_master(pdev);
@ -5775,12 +5798,12 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
struct rtl8169_private *tp = netdev_priv(dev);
void __iomem *ioaddr = tp->mmio_addr;
int handled = 0;
int status;
u16 status;
/* loop handling interrupts until we have no new ones or
* we hit a invalid/hotplug case.
*/
status = RTL_R16(IntrStatus);
status = rtl_get_events(tp);
while (status && status != 0xffff) {
status &= tp->intr_event;
if (!status)
@ -5839,7 +5862,7 @@ static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance)
*/
RTL_W16(IntrStatus,
(status & RxFIFOOver) ? (status | RxOverflow) : status);
status = RTL_R16(IntrStatus);
status = rtl_get_events(tp);
}
done:
return IRQ_RETVAL(handled);