Skip to content

Commit

Permalink
b43: replace the ssb_dma API with the generic DMA API
Browse files Browse the repository at this point in the history 
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Stefano Brivio <stefano.brivio@polimi.it>
Cc: John W. Linville <linville@tuxdriver.com>
Acked-by: Michael Buesch <mb@bu3sch.de>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
  • Loading branch information
FUJITA Tomonori authored and John W. Linville committed Jun 4, 2010
1 parent 4e80313 commit 718e889
Showing 1 changed file with 34 additions and 31 deletions.
65 changes: 34 additions & 31 deletions drivers/net/wireless/b43/dma.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -333,11 +333,11 @@ static inline
dma_addr_t dmaaddr;

if (tx) {
dmaaddr = ssb_dma_map_single(ring->dev->dev,
buf, len, DMA_TO_DEVICE);
dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
buf, len, DMA_TO_DEVICE);
} else {
dmaaddr = ssb_dma_map_single(ring->dev->dev,
buf, len, DMA_FROM_DEVICE);
dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
buf, len, DMA_FROM_DEVICE);
}

return dmaaddr;
Expand All @@ -348,11 +348,11 @@ static inline
dma_addr_t addr, size_t len, int tx)
{
if (tx) {
ssb_dma_unmap_single(ring->dev->dev,
addr, len, DMA_TO_DEVICE);
dma_unmap_single(ring->dev->dev->dma_dev,
addr, len, DMA_TO_DEVICE);
} else {
ssb_dma_unmap_single(ring->dev->dev,
addr, len, DMA_FROM_DEVICE);
dma_unmap_single(ring->dev->dev->dma_dev,
addr, len, DMA_FROM_DEVICE);
}
}

Expand All @@ -361,7 +361,7 @@ static inline
dma_addr_t addr, size_t len)
{
B43_WARN_ON(ring->tx);
ssb_dma_sync_single_for_cpu(ring->dev->dev,
dma_sync_single_for_cpu(ring->dev->dev->dma_dev,
addr, len, DMA_FROM_DEVICE);
}

Expand All @@ -370,8 +370,8 @@ static inline
dma_addr_t addr, size_t len)
{
B43_WARN_ON(ring->tx);
ssb_dma_sync_single_for_device(ring->dev->dev,
addr, len, DMA_FROM_DEVICE);
dma_sync_single_for_device(ring->dev->dev->dma_dev,
addr, len, DMA_FROM_DEVICE);
}

static inline
Expand Down Expand Up @@ -401,9 +401,9 @@ static int alloc_ringmemory(struct b43_dmaring *ring)
*/
if (ring->type == B43_DMA_64BIT)
flags |= GFP_DMA;
ring->descbase = ssb_dma_alloc_consistent(ring->dev->dev,
B43_DMA_RINGMEMSIZE,
&(ring->dmabase), flags);
ring->descbase = dma_alloc_coherent(ring->dev->dev->dma_dev,
B43_DMA_RINGMEMSIZE,
&(ring->dmabase), flags);
if (!ring->descbase) {
b43err(ring->dev->wl, "DMA ringmemory allocation failed\n");
return -ENOMEM;
Expand All @@ -420,8 +420,8 @@ static void free_ringmemory(struct b43_dmaring *ring)
if (ring->type == B43_DMA_64BIT)
flags |= GFP_DMA;

ssb_dma_free_consistent(ring->dev->dev, B43_DMA_RINGMEMSIZE,
ring->descbase, ring->dmabase, flags);
dma_free_coherent(ring->dev->dev->dma_dev, B43_DMA_RINGMEMSIZE,
ring->descbase, ring->dmabase);
}

/* Reset the RX DMA channel */
Expand Down Expand Up @@ -528,7 +528,7 @@ static bool b43_dma_mapping_error(struct b43_dmaring *ring,
dma_addr_t addr,
size_t buffersize, bool dma_to_device)
{
if (unlikely(ssb_dma_mapping_error(ring->dev->dev, addr)))
if (unlikely(dma_mapping_error(ring->dev->dev->dma_dev, addr)))
return 1;

switch (ring->type) {
Expand Down Expand Up @@ -874,10 +874,10 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev,
goto err_kfree_meta;

/* test for ability to dma to txhdr_cache */
dma_test = ssb_dma_map_single(dev->dev,
ring->txhdr_cache,
b43_txhdr_size(dev),
DMA_TO_DEVICE);
dma_test = dma_map_single(dev->dev->dma_dev,
ring->txhdr_cache,
b43_txhdr_size(dev),
DMA_TO_DEVICE);

if (b43_dma_mapping_error(ring, dma_test,
b43_txhdr_size(dev), 1)) {
Expand All @@ -889,10 +889,10 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev,
if (!ring->txhdr_cache)
goto err_kfree_meta;

dma_test = ssb_dma_map_single(dev->dev,
ring->txhdr_cache,
b43_txhdr_size(dev),
DMA_TO_DEVICE);
dma_test = dma_map_single(dev->dev->dma_dev,
ring->txhdr_cache,
b43_txhdr_size(dev),
DMA_TO_DEVICE);

if (b43_dma_mapping_error(ring, dma_test,
b43_txhdr_size(dev), 1)) {
Expand All @@ -903,9 +903,9 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev,
}
}

ssb_dma_unmap_single(dev->dev,
dma_test, b43_txhdr_size(dev),
DMA_TO_DEVICE);
dma_unmap_single(dev->dev->dma_dev,
dma_test, b43_txhdr_size(dev),
DMA_TO_DEVICE);
}

err = alloc_ringmemory(ring);
Expand Down Expand Up @@ -1018,9 +1018,12 @@ static int b43_dma_set_mask(struct b43_wldev *dev, u64 mask)
/* Try to set the DMA mask. If it fails, try falling back to a
* lower mask, as we can always also support a lower one. */
while (1) {
err = ssb_dma_set_mask(dev->dev, mask);
if (!err)
break;
err = dma_set_mask(dev->dev->dma_dev, mask);
if (!err) {
err = dma_set_coherent_mask(dev->dev->dma_dev, mask);
if (!err)
break;
}
if (mask == DMA_BIT_MASK(64)) {
mask = DMA_BIT_MASK(32);
fallback = 1;
Expand Down

0 comments on commit 718e889

Please sign in to comment.