diff options
Diffstat (limited to 'drivers/net/wireless/b43/dma.c')
| -rw-r--r-- | drivers/net/wireless/b43/dma.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index ce572aebeffd..83cba22ac6e8 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -4,7 +4,7 @@ DMA ringbuffer and descriptor allocation/management - Copyright (c) 2005, 2006 Michael Buesch <mb@bu3sch.de> + Copyright (c) 2005, 2006 Michael Buesch <m@bues.ch> Some code in this file is derived from the b44.c driver Copyright (C) 2002 David S. Miller @@ -174,7 +174,7 @@ static void op64_fill_descriptor(struct b43_dmaring *ring, addrhi = (((u64) dmaaddr >> 32) & ~SSB_DMA_TRANSLATION_MASK); addrext = (((u64) dmaaddr >> 32) & SSB_DMA_TRANSLATION_MASK) >> SSB_DMA_TRANSLATION_SHIFT; - addrhi |= (ring->dev->dma.translation << 1); + addrhi |= ring->dev->dma.translation; if (slot == ring->nr_slots - 1) ctl0 |= B43_DMA64_DCTL0_DTABLEEND; if (start) @@ -659,6 +659,7 @@ static int dmacontroller_setup(struct b43_dmaring *ring) u32 value; u32 addrext; u32 trans = ring->dev->dma.translation; + bool parity = ring->dev->dma.parity; if (ring->tx) { if (ring->type == B43_DMA_64BIT) { @@ -669,13 +670,15 @@ static int dmacontroller_setup(struct b43_dmaring *ring) value = B43_DMA64_TXENABLE; value |= (addrext << B43_DMA64_TXADDREXT_SHIFT) & B43_DMA64_TXADDREXT_MASK; + if (!parity) + value |= B43_DMA64_TXPARITYDISABLE; b43_dma_write(ring, B43_DMA64_TXCTL, value); b43_dma_write(ring, B43_DMA64_TXRINGLO, (ringbase & 0xFFFFFFFF)); b43_dma_write(ring, B43_DMA64_TXRINGHI, ((ringbase >> 32) & ~SSB_DMA_TRANSLATION_MASK) - | (trans << 1)); + | trans); } else { u32 ringbase = (u32) (ring->dmabase); @@ -684,6 +687,8 @@ static int dmacontroller_setup(struct b43_dmaring *ring) value = B43_DMA32_TXENABLE; value |= (addrext << B43_DMA32_TXADDREXT_SHIFT) & B43_DMA32_TXADDREXT_MASK; + if (!parity) + value |= B43_DMA32_TXPARITYDISABLE; b43_dma_write(ring, B43_DMA32_TXCTL, value); b43_dma_write(ring, B43_DMA32_TXRING, (ringbase & ~SSB_DMA_TRANSLATION_MASK) @@ -702,13 +707,15 @@ static int dmacontroller_setup(struct b43_dmaring *ring) value |= B43_DMA64_RXENABLE; value |= (addrext << B43_DMA64_RXADDREXT_SHIFT) & B43_DMA64_RXADDREXT_MASK; + if (!parity) + value |= B43_DMA64_RXPARITYDISABLE; b43_dma_write(ring, B43_DMA64_RXCTL, value); b43_dma_write(ring, B43_DMA64_RXRINGLO, (ringbase & 0xFFFFFFFF)); b43_dma_write(ring, B43_DMA64_RXRINGHI, ((ringbase >> 32) & ~SSB_DMA_TRANSLATION_MASK) - | (trans << 1)); + | trans); b43_dma_write(ring, B43_DMA64_RXINDEX, ring->nr_slots * sizeof(struct b43_dmadesc64)); } else { @@ -720,6 +727,8 @@ static int dmacontroller_setup(struct b43_dmaring *ring) value |= B43_DMA32_RXENABLE; value |= (addrext << B43_DMA32_RXADDREXT_SHIFT) & B43_DMA32_RXADDREXT_MASK; + if (!parity) + value |= B43_DMA32_RXPARITYDISABLE; b43_dma_write(ring, B43_DMA32_RXCTL, value); b43_dma_write(ring, B43_DMA32_RXRING, (ringbase & ~SSB_DMA_TRANSLATION_MASK) @@ -1057,6 +1066,11 @@ int b43_dma_init(struct b43_wldev *dev) return err; switch (dev->dev->bus_type) { +#ifdef CONFIG_B43_BCMA + case B43_BUS_BCMA: + dma->translation = bcma_core_dma_translation(dev->dev->bdev); + break; +#endif #ifdef CONFIG_B43_SSB case B43_BUS_SSB: dma->translation = ssb_dma_translation(dev->dev->sdev); @@ -1064,6 +1078,13 @@ int b43_dma_init(struct b43_wldev *dev) #endif } + dma->parity = true; +#ifdef CONFIG_B43_BCMA + /* TODO: find out which SSB devices need disabling parity */ + if (dev->dev->bus_type == B43_BUS_BCMA) + dma->parity = false; +#endif + err = -ENOMEM; /* setup TX DMA channels. */ dma->tx_ring_AC_BK = b43_setup_dmaring(dev, 0, 1, type); |