diff options
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/bcm43xx/bcm43xx_dma.c | 61 | ||||
| -rw-r--r-- | drivers/net/wireless/bcm43xx/bcm43xx_dma.h | 18 |
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); |