package/mac80211/patches-old/002-ssb-backport.patch

   1 This patch backports the interface of the b43 and b43legacy driver from
   2 the new to the old ssb API. This patch is needed as long the old ssb
   3 version is used in the kernel for broadcom devices. After upgrading to
   4 ssb version out of kernel 2.6.27 or later this patch is not needed any more.
   5
   6 --- a/drivers/net/wireless/b43/dma.c
   7 +++ b/drivers/net/wireless/b43/dma.c
   8 @@ -328,11 +328,11 @@ static inline
   9         dma_addr_t dmaaddr;
  10
  11         if (tx) {
  12 -               dmaaddr = ssb_dma_map_single(ring->dev->dev,
  13 -                                            buf, len, DMA_TO_DEVICE);
  14 +               dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
  15 +                                        buf, len, DMA_TO_DEVICE);
  16         } else {
  17 -               dmaaddr = ssb_dma_map_single(ring->dev->dev,
  18 -                                            buf, len, DMA_FROM_DEVICE);
  19 +               dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
  20 +                                        buf, len, DMA_FROM_DEVICE);
  21         }
  22
  23         return dmaaddr;
  24 @@ -343,11 +343,11 @@ static inline
  25                           dma_addr_t addr, size_t len, int tx)
  26  {
  27         if (tx) {
  28 -               ssb_dma_unmap_single(ring->dev->dev,
  29 -                                    addr, len, DMA_TO_DEVICE);
  30 +               dma_unmap_single(ring->dev->dev->dma_dev,
  31 +                                addr, len, DMA_TO_DEVICE);
  32         } else {
  33 -               ssb_dma_unmap_single(ring->dev->dev,
  34 -                                    addr, len, DMA_FROM_DEVICE);
  35 +               dma_unmap_single(ring->dev->dev->dma_dev,
  36 +                                addr, len, DMA_FROM_DEVICE);
  37         }
  38  }
  39
  40 @@ -356,8 +356,8 @@ static inline
  41                                  dma_addr_t addr, size_t len)
  42  {
  43         B43_WARN_ON(ring->tx);
  44 -       ssb_dma_sync_single_for_cpu(ring->dev->dev,
  45 -                                   addr, len, DMA_FROM_DEVICE);
  46 +       dma_sync_single_for_cpu(ring->dev->dev->dma_dev,
  47 +                               addr, len, DMA_FROM_DEVICE);
  48  }
  49
  50  static inline
  51 @@ -365,8 +365,8 @@ static inline
  52                                     dma_addr_t addr, size_t len)
  53  {
  54         B43_WARN_ON(ring->tx);
  55 -       ssb_dma_sync_single_for_device(ring->dev->dev,
  56 -                                      addr, len, DMA_FROM_DEVICE);
  57 +       dma_sync_single_for_device(ring->dev->dev->dma_dev,
  58 +                                  addr, len, DMA_FROM_DEVICE);
  59  }
  60
  61  static inline
  62 @@ -381,6 +381,7 @@ static inline
  63
  64  static int alloc_ringmemory(struct b43_dmaring *ring)
  65  {
  66 +       struct device *dma_dev = ring->dev->dev->dma_dev;
  67         gfp_t flags = GFP_KERNEL;
  68
  69         /* The specs call for 4K buffers for 30- and 32-bit DMA with 4K
  70 @@ -391,14 +392,11 @@ static int alloc_ringmemory(struct b43_d
  71          * For unknown reasons - possibly a hardware error - the BCM4311 rev
  72          * 02, which uses 64-bit DMA, needs the ring buffer in very low memory,
  73          * which accounts for the GFP_DMA flag below.
  74 -        *
  75 -        * The flags here must match the flags in free_ringmemory below!
  76          */
  77         if (ring->type == B43_DMA_64BIT)
  78                 flags |= GFP_DMA;
  79 -       ring->descbase = ssb_dma_alloc_consistent(ring->dev->dev,
  80 -                                                 B43_DMA_RINGMEMSIZE,
  81 -                                                 &(ring->dmabase), flags);
  82 +       ring->descbase = dma_alloc_coherent(dma_dev, B43_DMA_RINGMEMSIZE,
  83 +                                           &(ring->dmabase), flags);
  84         if (!ring->descbase) {
  85                 b43err(ring->dev->wl, "DMA ringmemory allocation failed\n");
  86                 return -ENOMEM;
  87 @@ -410,13 +408,10 @@ static int alloc_ringmemory(struct b43_d
  88
  89  static void free_ringmemory(struct b43_dmaring *ring)
  90  {
  91 -       gfp_t flags = GFP_KERNEL;
  92 -
  93 -       if (ring->type == B43_DMA_64BIT)
  94 -               flags |= GFP_DMA;
  95 +       struct device *dma_dev = ring->dev->dev->dma_dev;
  96
  97 -       ssb_dma_free_consistent(ring->dev->dev, B43_DMA_RINGMEMSIZE,
  98 -                               ring->descbase, ring->dmabase, flags);
  99 +       dma_free_coherent(dma_dev, B43_DMA_RINGMEMSIZE,
 100 +                         ring->descbase, ring->dmabase);
 101  }
 102
 103  /* Reset the RX DMA channel */
 104 @@ -523,7 +518,7 @@ static bool b43_dma_mapping_error(struct
 105                                   dma_addr_t addr,
 106                                   size_t buffersize, bool dma_to_device)
 107  {
 108 -       if (unlikely(ssb_dma_mapping_error(ring->dev->dev, addr)))
 109 +       if (unlikely(dma_mapping_error(addr)))
 110                 return 1;
 111
 112         switch (ring->type) {
 113 @@ -849,10 +844,10 @@ struct b43_dmaring *b43_setup_dmaring(st
 114                         goto err_kfree_meta;
 115
 116                 /* test for ability to dma to txhdr_cache */
 117 -               dma_test = ssb_dma_map_single(dev->dev,
 118 -                                             ring->txhdr_cache,
 119 -                                             b43_txhdr_size(dev),
 120 -                                             DMA_TO_DEVICE);
 121 +               dma_test = dma_map_single(dev->dev->dma_dev,
 122 +                                         ring->txhdr_cache,
 123 +                                         b43_txhdr_size(dev),
 124 +                                         DMA_TO_DEVICE);
 125
 126                 if (b43_dma_mapping_error(ring, dma_test,
 127                                           b43_txhdr_size(dev), 1)) {
 128 @@ -864,10 +859,10 @@ struct b43_dmaring *b43_setup_dmaring(st
 129                         if (!ring->txhdr_cache)
 130                                 goto err_kfree_meta;
 131
 132 -                       dma_test = ssb_dma_map_single(dev->dev,
 133 -                                                     ring->txhdr_cache,
 134 -                                                     b43_txhdr_size(dev),
 135 -                                                     DMA_TO_DEVICE);
 136 +                       dma_test = dma_map_single(dev->dev->dma_dev,
 137 +                                                 ring->txhdr_cache,
 138 +                                                 b43_txhdr_size(dev),
 139 +                                                 DMA_TO_DEVICE);
 140
 141                         if (b43_dma_mapping_error(ring, dma_test,
 142                                                   b43_txhdr_size(dev), 1)) {
 143 @@ -878,9 +873,9 @@ struct b43_dmaring *b43_setup_dmaring(st
 144                         }
 145                 }
 146
 147 -               ssb_dma_unmap_single(dev->dev,
 148 -                                    dma_test, b43_txhdr_size(dev),
 149 -                                    DMA_TO_DEVICE);
 150 +               dma_unmap_single(dev->dev->dma_dev,
 151 +                                dma_test, b43_txhdr_size(dev),
 152 +                                DMA_TO_DEVICE);
 153         }
 154
 155         err = alloc_ringmemory(ring);
 156 --- a/drivers/net/wireless/b43legacy/dma.c
 157 +++ b/drivers/net/wireless/b43legacy/dma.c
 158 @@ -393,13 +393,13 @@ dma_addr_t map_descbuffer(struct b43lega
 159         dma_addr_t dmaaddr;
 160
 161         if (tx)
 162 -               dmaaddr = ssb_dma_map_single(ring->dev->dev,
 163 -                                            buf, len,
 164 -                                            DMA_TO_DEVICE);
 165 +               dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
 166 +                                        buf, len,
 167 +                                        DMA_TO_DEVICE);
 168         else
 169 -               dmaaddr = ssb_dma_map_single(ring->dev->dev,
 170 -                                            buf, len,
 171 -                                            DMA_FROM_DEVICE);
 172 +               dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
 173 +                                        buf, len,
 174 +                                        DMA_FROM_DEVICE);
 175
 176         return dmaaddr;
 177  }
 178 @@ -411,13 +411,13 @@ void unmap_descbuffer(struct b43legacy_d
 179                       int tx)
 180  {
 181         if (tx)
 182 -               ssb_dma_unmap_single(ring->dev->dev,
 183 -                                    addr, len,
 184 -                                    DMA_TO_DEVICE);
 185 +               dma_unmap_single(ring->dev->dev->dma_dev,
 186 +                                addr, len,
 187 +                                DMA_TO_DEVICE);
 188         else
 189 -               ssb_dma_unmap_single(ring->dev->dev,
 190 -                                    addr, len,
 191 -                                    DMA_FROM_DEVICE);
 192 +               dma_unmap_single(ring->dev->dev->dma_dev,
 193 +                                addr, len,
 194 +                                DMA_FROM_DEVICE);
 195  }
 196
 197  static inline
 198 @@ -427,8 +427,8 @@ void sync_descbuffer_for_cpu(struct b43l
 199  {
 200         B43legacy_WARN_ON(ring->tx);
 201
 202 -       ssb_dma_sync_single_for_cpu(ring->dev->dev,
 203 -                                   addr, len, DMA_FROM_DEVICE);
 204 +       dma_sync_single_for_cpu(ring->dev->dev->dma_dev,
 205 +                               addr, len, DMA_FROM_DEVICE);
 206  }
 207
 208  static inline
 209 @@ -438,8 +438,8 @@ void sync_descbuffer_for_device(struct b
 210  {
 211         B43legacy_WARN_ON(ring->tx);
 212
 213 -       ssb_dma_sync_single_for_device(ring->dev->dev,
 214 -                                      addr, len, DMA_FROM_DEVICE);
 215 +       dma_sync_single_for_device(ring->dev->dev->dma_dev,
 216 +                                  addr, len, DMA_FROM_DEVICE);
 217  }
 218
 219  static inline
 220 @@ -458,11 +458,10 @@ void free_descriptor_buffer(struct b43le
 221
 222  static int alloc_ringmemory(struct b43legacy_dmaring *ring)
 223  {
 224 -       /* GFP flags must match the flags in free_ringmemory()! */
 225 -       ring->descbase = ssb_dma_alloc_consistent(ring->dev->dev,
 226 -                                                 B43legacy_DMA_RINGMEMSIZE,
 227 -                                                 &(ring->dmabase),
 228 -                                                 GFP_KERNEL);
 229 +       struct device *dma_dev = ring->dev->dev->dma_dev;
 230 +
 231 +       ring->descbase = dma_alloc_coherent(dma_dev, B43legacy_DMA_RINGMEMSIZE,
 232 +                                           &(ring->dmabase), GFP_KERNEL);
 233         if (!ring->descbase) {
 234                 b43legacyerr(ring->dev->wl, "DMA ringmemory allocation"
 235                              " failed\n");
 236 @@ -475,8 +474,10 @@ static int alloc_ringmemory(struct b43le
 237
 238  static void free_ringmemory(struct b43legacy_dmaring *ring)
 239  {
 240 -       ssb_dma_free_consistent(ring->dev->dev, B43legacy_DMA_RINGMEMSIZE,
 241 -                               ring->descbase, ring->dmabase, GFP_KERNEL);
 242 +       struct device *dma_dev = ring->dev->dev->dma_dev;
 243 +
 244 +       dma_free_coherent(dma_dev, B43legacy_DMA_RINGMEMSIZE,
 245 +                         ring->descbase, ring->dmabase);
 246  }
 247
 248  /* Reset the RX DMA channel */
 249 @@ -588,7 +589,7 @@ static bool b43legacy_dma_mapping_error(
 250                                          size_t buffersize,
 251                                          bool dma_to_device)
 252  {
 253 -       if (unlikely(ssb_dma_mapping_error(ring->dev->dev, addr)))
 254 +       if (unlikely(dma_mapping_error(addr)))
 255                 return 1;
 256
 257         switch (ring->type) {
 258 @@ -905,9 +906,9 @@ struct b43legacy_dmaring *b43legacy_setu
 259                         goto err_kfree_meta;
 260
 261                 /* test for ability to dma to txhdr_cache */
 262 -               dma_test = ssb_dma_map_single(dev->dev, ring->txhdr_cache,
 263 -                                             sizeof(struct b43legacy_txhdr_fw3),
 264 -                                             DMA_TO_DEVICE);
 265 +               dma_test = dma_map_single(dev->dev->dma_dev, ring->txhdr_cache,
 266 +                                         sizeof(struct b43legacy_txhdr_fw3),
 267 +                                         DMA_TO_DEVICE);
 268
 269                 if (b43legacy_dma_mapping_error(ring, dma_test,
 270                                         sizeof(struct b43legacy_txhdr_fw3), 1)) {
 271 @@ -919,7 +920,7 @@ struct b43legacy_dmaring *b43legacy_setu
 272                         if (!ring->txhdr_cache)
 273                                 goto err_kfree_meta;
 274
 275 -                               dma_test = ssb_dma_map_single(dev->dev,
 276 +                       dma_test = dma_map_single(dev->dev->dma_dev,
 277                                         ring->txhdr_cache,
 278                                         sizeof(struct b43legacy_txhdr_fw3),
 279                                         DMA_TO_DEVICE);
 280 @@ -929,9 +930,9 @@ struct b43legacy_dmaring *b43legacy_setu
 281                                 goto err_kfree_txhdr_cache;
 282                 }
 283
 284 -               ssb_dma_unmap_single(dev->dev, dma_test,
 285 -                                    sizeof(struct b43legacy_txhdr_fw3),
 286 -                                    DMA_TO_DEVICE);
 287 +               dma_unmap_single(dev->dev->dma_dev,
 288 +                                dma_test, sizeof(struct b43legacy_txhdr_fw3),
 289 +                                DMA_TO_DEVICE);
 290         }
 291
 292         ring->nr_slots = nr_slots;