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path: root/drivers/net/wireless
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-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx_dma.c61
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx_dma.h18
2 files changed, 51 insertions, 28 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_dma.c b/drivers/net/wireless/bcm43xx/bcm43xx_dma.c
index 0cd29284795..fbe19b922aa 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_dma.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_dma.c
@@ -374,13 +374,11 @@ static int dmacontroller_setup(struct bcm43xx_dmaring *ring)
if (ring->tx) {
/* Set Transmit Control register to "transmit enable" */
- bcm43xx_write32(ring->bcm,
- ring->mmio_base + BCM43xx_DMA_TX_CONTROL,
- BCM43xx_DMA_TXCTRL_ENABLE);
+ bcm43xx_dma_write(ring, BCM43xx_DMA_TX_CONTROL,
+ BCM43xx_DMA_TXCTRL_ENABLE);
/* Set Transmit Descriptor ring address. */
- bcm43xx_write32(ring->bcm,
- ring->mmio_base + BCM43xx_DMA_TX_DESC_RING,
- ring->dmabase + ring->memoffset);
+ bcm43xx_dma_write(ring, BCM43xx_DMA_TX_DESC_RING,
+ ring->dmabase + ring->memoffset);
} else {
err = alloc_initial_descbuffers(ring);
if (err)
@@ -388,17 +386,12 @@ static int dmacontroller_setup(struct bcm43xx_dmaring *ring)
/* Set Receive Control "receive enable" and frame offset */
value = (ring->frameoffset << BCM43xx_DMA_RXCTRL_FRAMEOFF_SHIFT);
value |= BCM43xx_DMA_RXCTRL_ENABLE;
- bcm43xx_write32(ring->bcm,
- ring->mmio_base + BCM43xx_DMA_RX_CONTROL,
- value);
+ bcm43xx_dma_write(ring, BCM43xx_DMA_RX_CONTROL, value);
/* Set Receive Descriptor ring address. */
- bcm43xx_write32(ring->bcm,
- ring->mmio_base + BCM43xx_DMA_RX_DESC_RING,
- ring->dmabase + ring->memoffset);
+ bcm43xx_dma_write(ring, BCM43xx_DMA_RX_DESC_RING,
+ ring->dmabase + ring->memoffset);
/* Init the descriptor pointer. */
- bcm43xx_write32(ring->bcm,
- ring->mmio_base + BCM43xx_DMA_RX_DESC_INDEX,
- 200);
+ bcm43xx_dma_write(ring, BCM43xx_DMA_RX_DESC_INDEX, 200);
}
out:
@@ -411,15 +404,11 @@ static void dmacontroller_cleanup(struct bcm43xx_dmaring *ring)
if (ring->tx) {
bcm43xx_dmacontroller_tx_reset(ring->bcm, ring->mmio_base);
/* Zero out Transmit Descriptor ring address. */
- bcm43xx_write32(ring->bcm,
- ring->mmio_base + BCM43xx_DMA_TX_DESC_RING,
- 0x00000000);
+ bcm43xx_dma_write(ring, BCM43xx_DMA_TX_DESC_RING, 0);
} else {
bcm43xx_dmacontroller_rx_reset(ring->bcm, ring->mmio_base);
/* Zero out Receive Descriptor ring address. */
- bcm43xx_write32(ring->bcm,
- ring->mmio_base + BCM43xx_DMA_RX_DESC_RING,
- 0x00000000);
+ bcm43xx_dma_write(ring, BCM43xx_DMA_RX_DESC_RING, 0);
}
}
@@ -698,9 +687,8 @@ static void dmacontroller_poke_tx(struct bcm43xx_dmaring *ring,
*/
wmb();
slot = next_slot(ring, slot);
- bcm43xx_write32(ring->bcm,
- ring->mmio_base + BCM43xx_DMA_TX_DESC_INDEX,
- (u32)(slot * sizeof(struct bcm43xx_dmadesc)));
+ bcm43xx_dma_write(ring, BCM43xx_DMA_TX_DESC_INDEX,
+ (u32)(slot * sizeof(struct bcm43xx_dmadesc)));
}
static int dma_tx_fragment(struct bcm43xx_dmaring *ring,
@@ -940,7 +928,7 @@ void bcm43xx_dma_rx(struct bcm43xx_dmaring *ring)
#endif
assert(!ring->tx);
- status = bcm43xx_read32(ring->bcm, ring->mmio_base + BCM43xx_DMA_RX_STATUS);
+ status = bcm43xx_dma_read(ring, BCM43xx_DMA_RX_STATUS);
descptr = (status & BCM43xx_DMA_RXSTAT_DPTR_MASK);
current_slot = descptr / sizeof(struct bcm43xx_dmadesc);
assert(current_slot >= 0 && current_slot < ring->nr_slots);
@@ -953,10 +941,27 @@ void bcm43xx_dma_rx(struct bcm43xx_dmaring *ring)
ring->max_used_slots = used_slots;
#endif
}
- bcm43xx_write32(ring->bcm,
- ring->mmio_base + BCM43xx_DMA_RX_DESC_INDEX,
- (u32)(slot * sizeof(struct bcm43xx_dmadesc)));
+ bcm43xx_dma_write(ring, BCM43xx_DMA_RX_DESC_INDEX,
+ (u32)(slot * sizeof(struct bcm43xx_dmadesc)));
ring->current_slot = slot;
}
+void bcm43xx_dma_tx_suspend(struct bcm43xx_dmaring *ring)
+{
+ assert(ring->tx);
+ bcm43xx_power_saving_ctl_bits(ring->bcm, -1, 1);
+ bcm43xx_dma_write(ring, BCM43xx_DMA_TX_CONTROL,
+ bcm43xx_dma_read(ring, BCM43xx_DMA_TX_CONTROL)
+ | BCM43xx_DMA_TXCTRL_SUSPEND);
+}
+
+void bcm43xx_dma_tx_resume(struct bcm43xx_dmaring *ring)
+{
+ assert(ring->tx);
+ bcm43xx_dma_write(ring, BCM43xx_DMA_TX_CONTROL,
+ bcm43xx_dma_read(ring, BCM43xx_DMA_TX_CONTROL)
+ & ~BCM43xx_DMA_TXCTRL_SUSPEND);
+ bcm43xx_power_saving_ctl_bits(ring->bcm, -1, -1);
+}
+
/* vim: set ts=8 sw=8 sts=8: */
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_dma.h b/drivers/net/wireless/bcm43xx/bcm43xx_dma.h
index c07e34689be..2d520e4b027 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_dma.h
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_dma.h
@@ -140,6 +140,21 @@ struct bcm43xx_dmaring {
};
+static inline
+u32 bcm43xx_dma_read(struct bcm43xx_dmaring *ring,
+ u16 offset)
+{
+ return bcm43xx_read32(ring->bcm, ring->mmio_base + offset);
+}
+
+static inline
+void bcm43xx_dma_write(struct bcm43xx_dmaring *ring,
+ u16 offset, u32 value)
+{
+ bcm43xx_write32(ring->bcm, ring->mmio_base + offset, value);
+}
+
+
int bcm43xx_dma_init(struct bcm43xx_private *bcm);
void bcm43xx_dma_free(struct bcm43xx_private *bcm);
@@ -148,6 +163,9 @@ int bcm43xx_dmacontroller_rx_reset(struct bcm43xx_private *bcm,
int bcm43xx_dmacontroller_tx_reset(struct bcm43xx_private *bcm,
u16 dmacontroller_mmio_base);
+void bcm43xx_dma_tx_suspend(struct bcm43xx_dmaring *ring);
+void bcm43xx_dma_tx_resume(struct bcm43xx_dmaring *ring);
+
void bcm43xx_dma_handle_xmitstatus(struct bcm43xx_private *bcm,
struct bcm43xx_xmitstatus *status);