Skip to content

Commit

Permalink
b43legacy: 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: Larry Finger <Larry.Finger@lwfinger.net>
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>
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 14f9295 commit 4e80313
Showing 1 changed file with 26 additions and 23 deletions.
49 changes: 26 additions & 23 deletions drivers/net/wireless/b43legacy/dma.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -394,11 +394,11 @@ dma_addr_t map_descbuffer(struct b43legacy_dmaring *ring,
dma_addr_t dmaaddr;

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

Expand All @@ -412,11 +412,11 @@ void unmap_descbuffer(struct b43legacy_dmaring *ring,
int tx)
{
if (tx)
ssb_dma_unmap_single(ring->dev->dev,
dma_unmap_single(ring->dev->dev->dma_dev,
addr, len,
DMA_TO_DEVICE);
else
ssb_dma_unmap_single(ring->dev->dev,
dma_unmap_single(ring->dev->dev->dma_dev,
addr, len,
DMA_FROM_DEVICE);
}
Expand All @@ -428,8 +428,8 @@ void sync_descbuffer_for_cpu(struct b43legacy_dmaring *ring,
{
B43legacy_WARN_ON(ring->tx);

ssb_dma_sync_single_for_cpu(ring->dev->dev,
addr, len, DMA_FROM_DEVICE);
dma_sync_single_for_cpu(ring->dev->dev->dma_dev,
addr, len, DMA_FROM_DEVICE);
}

static inline
Expand All @@ -439,8 +439,8 @@ void sync_descbuffer_for_device(struct b43legacy_dmaring *ring,
{
B43legacy_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 All @@ -460,10 +460,10 @@ void free_descriptor_buffer(struct b43legacy_dmaring *ring,
static int alloc_ringmemory(struct b43legacy_dmaring *ring)
{
/* GFP flags must match the flags in free_ringmemory()! */
ring->descbase = ssb_dma_alloc_consistent(ring->dev->dev,
B43legacy_DMA_RINGMEMSIZE,
&(ring->dmabase),
GFP_KERNEL);
ring->descbase = dma_alloc_coherent(ring->dev->dev->dma_dev,
B43legacy_DMA_RINGMEMSIZE,
&(ring->dmabase),
GFP_KERNEL);
if (!ring->descbase) {
b43legacyerr(ring->dev->wl, "DMA ringmemory allocation"
" failed\n");
Expand All @@ -476,8 +476,8 @@ static int alloc_ringmemory(struct b43legacy_dmaring *ring)

static void free_ringmemory(struct b43legacy_dmaring *ring)
{
ssb_dma_free_consistent(ring->dev->dev, B43legacy_DMA_RINGMEMSIZE,
ring->descbase, ring->dmabase, GFP_KERNEL);
dma_free_coherent(ring->dev->dev->dma_dev, B43legacy_DMA_RINGMEMSIZE,
ring->descbase, ring->dmabase);
}

/* Reset the RX DMA channel */
Expand Down Expand Up @@ -589,7 +589,7 @@ static bool b43legacy_dma_mapping_error(struct b43legacy_dmaring *ring,
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 @@ -906,7 +906,7 @@ struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_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,
dma_test = dma_map_single(dev->dev->dma_dev, ring->txhdr_cache,
sizeof(struct b43legacy_txhdr_fw3),
DMA_TO_DEVICE);

Expand All @@ -920,7 +920,7 @@ struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_wldev *dev,
if (!ring->txhdr_cache)
goto err_kfree_meta;

dma_test = ssb_dma_map_single(dev->dev,
dma_test = dma_map_single(dev->dev->dma_dev,
ring->txhdr_cache,
sizeof(struct b43legacy_txhdr_fw3),
DMA_TO_DEVICE);
Expand All @@ -930,9 +930,9 @@ struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_wldev *dev,
goto err_kfree_txhdr_cache;
}

ssb_dma_unmap_single(dev->dev, dma_test,
sizeof(struct b43legacy_txhdr_fw3),
DMA_TO_DEVICE);
dma_unmap_single(dev->dev->dma_dev, dma_test,
sizeof(struct b43legacy_txhdr_fw3),
DMA_TO_DEVICE);
}

ring->nr_slots = nr_slots;
Expand Down Expand Up @@ -1040,9 +1040,12 @@ static int b43legacy_dma_set_mask(struct b43legacy_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 4e80313

Please sign in to comment.