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authorMichael Buesch <mbuesch@freenet.de>2006-03-19 21:43:40 +0100
committerJohn W. Linville <linville@tuxdriver.com>2006-03-27 11:19:42 -0500
commit0ac59daee5f7fbaab25784a643edede669b5419e (patch)
tree7e415dbd5dc7aee5eab28f18de1388e2e77f0f9e
parent6ab5b8e670c4bb7ac0035ec3c6d6a161fae12009 (diff)
downloadop-kernel-dev-0ac59daee5f7fbaab25784a643edede669b5419e.zip
op-kernel-dev-0ac59daee5f7fbaab25784a643edede669b5419e.tar.gz
[PATCH] bcm43xx: some IRQ handler cleanups.
Signed-off-by: Michael Buesch <mbuesch@freenet.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx_main.c65
1 files changed, 30 insertions, 35 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_main.c b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
index a851763..12c93d2 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_main.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
@@ -1785,10 +1785,6 @@ static void bcm43xx_interrupt_tasklet(struct bcm43xx_private *bcm)
bcmirq_handled(BCM43xx_IRQ_XMIT_STATUS);
}
- /* We get spurious IRQs, althought they are masked.
- * Assume they are void and ignore them.
- */
- bcmirq_handled(~(bcm->irq_savedstate));
/* IRQ_PIO_WORKAROUND is handled in the top-half. */
bcmirq_handled(BCM43xx_IRQ_PIO_WORKAROUND);
#ifdef CONFIG_BCM43XX_DEBUG
@@ -1809,41 +1805,31 @@ static void bcm43xx_interrupt_tasklet(struct bcm43xx_private *bcm)
bcm43xx_unlock_mmio(bcm, flags);
}
-static void bcm43xx_interrupt_ack(struct bcm43xx_private *bcm,
- u32 reason, u32 mask)
+static void pio_irq_workaround(struct bcm43xx_private *bcm,
+ u16 base, int queueidx)
{
- bcm->dma_reason[0] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA1_REASON)
- & 0x0001dc00;
- bcm->dma_reason[1] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA2_REASON)
- & 0x0000dc00;
- bcm->dma_reason[2] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA3_REASON)
- & 0x0000dc00;
- bcm->dma_reason[3] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA4_REASON)
- & 0x0001dc00;
+ u16 rxctl;
+
+ rxctl = bcm43xx_read16(bcm, base + BCM43xx_PIO_RXCTL);
+ if (rxctl & BCM43xx_PIO_RXCTL_DATAAVAILABLE)
+ bcm->dma_reason[queueidx] |= BCM43xx_DMAIRQ_RX_DONE;
+ else
+ bcm->dma_reason[queueidx] &= ~BCM43xx_DMAIRQ_RX_DONE;
+}
+static void bcm43xx_interrupt_ack(struct bcm43xx_private *bcm, u32 reason)
+{
if (bcm43xx_using_pio(bcm) &&
(bcm->current_core->rev < 3) &&
(!(reason & BCM43xx_IRQ_PIO_WORKAROUND))) {
/* Apply a PIO specific workaround to the dma_reasons */
-
-#define apply_pio_workaround(BASE, QNUM) \
- do { \
- if (bcm43xx_read16(bcm, BASE + BCM43xx_PIO_RXCTL) & BCM43xx_PIO_RXCTL_DATAAVAILABLE) \
- bcm->dma_reason[QNUM] |= 0x00010000; \
- else \
- bcm->dma_reason[QNUM] &= ~0x00010000; \
- } while (0)
-
- apply_pio_workaround(BCM43xx_MMIO_PIO1_BASE, 0);
- apply_pio_workaround(BCM43xx_MMIO_PIO2_BASE, 1);
- apply_pio_workaround(BCM43xx_MMIO_PIO3_BASE, 2);
- apply_pio_workaround(BCM43xx_MMIO_PIO4_BASE, 3);
-
-#undef apply_pio_workaround
+ pio_irq_workaround(bcm, BCM43xx_MMIO_PIO1_BASE, 0);
+ pio_irq_workaround(bcm, BCM43xx_MMIO_PIO2_BASE, 1);
+ pio_irq_workaround(bcm, BCM43xx_MMIO_PIO3_BASE, 2);
+ pio_irq_workaround(bcm, BCM43xx_MMIO_PIO4_BASE, 3);
}
- bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON,
- reason & mask);
+ bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, reason);
bcm43xx_write32(bcm, BCM43xx_MMIO_DMA1_REASON,
bcm->dma_reason[0]);
@@ -1860,7 +1846,7 @@ static irqreturn_t bcm43xx_interrupt_handler(int irq, void *dev_id, struct pt_re
{
irqreturn_t ret = IRQ_HANDLED;
struct bcm43xx_private *bcm = dev_id;
- u32 reason, mask;
+ u32 reason;
if (!bcm)
return IRQ_NONE;
@@ -1873,11 +1859,20 @@ static irqreturn_t bcm43xx_interrupt_handler(int irq, void *dev_id, struct pt_re
ret = IRQ_NONE;
goto out;
}
- mask = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK);
- if (!(reason & mask))
+ reason &= bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK);
+ if (!reason)
goto out;
- bcm43xx_interrupt_ack(bcm, reason, mask);
+ bcm->dma_reason[0] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA1_REASON)
+ & 0x0001dc00;
+ bcm->dma_reason[1] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA2_REASON)
+ & 0x0000dc00;
+ bcm->dma_reason[2] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA3_REASON)
+ & 0x0000dc00;
+ bcm->dma_reason[3] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA4_REASON)
+ & 0x0001dc00;
+
+ bcm43xx_interrupt_ack(bcm, reason);
/* Only accept IRQs, if we are initialized properly.
* This avoids an RX race while initializing.
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