openwrt/package/b43/patches/002-ssb-backport.patch

Index: b43/dma.c
===================================================================
--- b43.orig/dma.c	2008-07-27 13:56:25.000000000 +0200
+++ b43/dma.c	2008-07-27 14:02:26.000000000 +0200
@@ -328,11 +328,11 @@ 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;
@@ -343,11 +343,11 @@ 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);
 	}
 }
 
@@ -356,8 +356,8 @@ static inline
 				 dma_addr_t addr, size_t len)
 {
 	B43_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
@@ -365,8 +365,8 @@ 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
@@ -381,6 +381,7 @@ static inline
 
 static int alloc_ringmemory(struct b43_dmaring *ring)
 {
+	struct device *dma_dev = ring->dev->dev->dma_dev;
 	gfp_t flags = GFP_KERNEL;
 
 	/* The specs call for 4K buffers for 30- and 32-bit DMA with 4K
@@ -391,14 +392,11 @@ static int alloc_ringmemory(struct b43_dmaring *ring)
 	 * For unknown reasons - possibly a hardware error - the BCM4311 rev
 	 * 02, which uses 64-bit DMA, needs the ring buffer in very low memory,
 	 * which accounts for the GFP_DMA flag below.
-	 *
-	 * The flags here must match the flags in free_ringmemory below!
 	 */
 	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(dma_dev, B43_DMA_RINGMEMSIZE,
+					    &(ring->dmabase), flags);
 	if (!ring->descbase) {
 		b43err(ring->dev->wl, "DMA ringmemory allocation failed\n");
 		return -ENOMEM;
@@ -410,13 +408,10 @@ static int alloc_ringmemory(struct b43_dmaring *ring)
 
 static void free_ringmemory(struct b43_dmaring *ring)
 {
-	gfp_t flags = GFP_KERNEL;
-
-	if (ring->type == B43_DMA_64BIT)
-		flags |= GFP_DMA;
+	struct device *dma_dev = ring->dev->dev->dma_dev;
 
-	ssb_dma_free_consistent(ring->dev->dev, B43_DMA_RINGMEMSIZE,
-				ring->descbase, ring->dmabase, flags);
+	dma_free_coherent(dma_dev, B43_DMA_RINGMEMSIZE,
+			  ring->descbase, ring->dmabase);
 }
 
 /* Reset the RX DMA channel */
@@ -523,7 +518,7 @@ 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(addr)))
 		return 1;
 
 	switch (ring->type) {
@@ -849,10 +844,10 @@ 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)) {
@@ -864,10 +859,10 @@ 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)) {
@@ -878,9 +873,9 @@ 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);