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-rw-r--r--package/mac80211/patches-brcm/002-ssb-backport.patch296
1 files changed, 296 insertions, 0 deletions
diff --git a/package/mac80211/patches-brcm/002-ssb-backport.patch b/package/mac80211/patches-brcm/002-ssb-backport.patch
new file mode 100644
index 000000000..a57143ae1
--- /dev/null
+++ b/package/mac80211/patches-brcm/002-ssb-backport.patch
@@ -0,0 +1,296 @@
+This patch backports the interface of the b43 and b43legacy driver from
+the new to the old ssb API. This patch is needed as long the old ssb
+version is used in the kernel for broadcom devices. After upgrading to
+ssb version out of kernel 2.6.27 or later this patch is not needed any more.
+
+diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c
+index 098f886..8a09a1d 100644
+--- a/drivers/net/wireless/b43/dma.c
++++ b/drivers/net/wireless/b43/dma.c
+@@ -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);
+diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c
+index fb6819e..87b1049 100644
+--- a/drivers/net/wireless/b43legacy/dma.c
++++ b/drivers/net/wireless/b43legacy/dma.c
+@@ -393,13 +393,13 @@ dma_addr_t map_descbuffer(struct b43legacy_dmaring *ring,
+ 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;
+ }
+@@ -411,13 +411,13 @@ void unmap_descbuffer(struct b43legacy_dmaring *ring,
+ 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);
+ }
+
+ static inline
+@@ -427,8 +427,8 @@ 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
+@@ -438,8 +438,8 @@ 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
+@@ -458,11 +458,10 @@ 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);
++ struct device *dma_dev = ring->dev->dev->dma_dev;
++
++ ring->descbase = dma_alloc_coherent(dma_dev, B43legacy_DMA_RINGMEMSIZE,
++ &(ring->dmabase), GFP_KERNEL);
+ if (!ring->descbase) {
+ b43legacyerr(ring->dev->wl, "DMA ringmemory allocation"
+ " failed\n");
+@@ -475,8 +474,10 @@ 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);
++ struct device *dma_dev = ring->dev->dev->dma_dev;
++
++ dma_free_coherent(dma_dev, B43legacy_DMA_RINGMEMSIZE,
++ ring->descbase, ring->dmabase);
+ }
+
+ /* Reset the RX DMA channel */
+@@ -588,7 +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(addr)))
+ return 1;
+
+ switch (ring->type) {
+@@ -905,9 +906,9 @@ 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,
+- sizeof(struct b43legacy_txhdr_fw3),
+- DMA_TO_DEVICE);
++ dma_test = dma_map_single(dev->dev->dma_dev, ring->txhdr_cache,
++ sizeof(struct b43legacy_txhdr_fw3),
++ DMA_TO_DEVICE);
+
+ if (b43legacy_dma_mapping_error(ring, dma_test,
+ sizeof(struct b43legacy_txhdr_fw3), 1)) {
+@@ -919,7 +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);
+@@ -929,9 +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;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 12:30:10 +0000