drivers/net/wireless/b43/bus.c

   1 /*
   2
   3   Broadcom B43 wireless driver
   4   Bus abstraction layer
   5
   6   Copyright (c) 2011 Rafał Miłecki <zajec5@gmail.com>
   7
   8   This program is free software; you can redistribute it and/or modify
   9   it under the terms of the GNU General Public License as published by
  10   the Free Software Foundation; either version 2 of the License, or
  11   (at your option) any later version.
  12
  13   This program is distributed in the hope that it will be useful,
  14   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16   GNU General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with this program; see the file COPYING.  If not, write to
  20   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  21   Boston, MA 02110-1301, USA.
  22
  23 */
  24
  25 #include "b43.h"
  26 #include "bus.h"
  27
  28 /* BCMA */
  29 #ifdef CONFIG_B43_BCMA
  30 static int b43_bus_bcma_bus_may_powerdown(struct b43_bus_dev *dev)
  31 {
  32         return 0; /* bcma_bus_may_powerdown(dev->bdev->bus); */
  33 }
  34 static int b43_bus_bcma_bus_powerup(struct b43_bus_dev *dev,
  35                                           bool dynamic_pctl)
  36 {
  37         return 0; /* bcma_bus_powerup(dev->sdev->bus, dynamic_pctl); */
  38 }
  39 static int b43_bus_bcma_device_is_enabled(struct b43_bus_dev *dev)
  40 {
  41         return bcma_core_is_enabled(dev->bdev);
  42 }
  43 static void b43_bus_bcma_device_enable(struct b43_bus_dev *dev,
  44                                              u32 core_specific_flags)
  45 {
  46         bcma_core_enable(dev->bdev, core_specific_flags);
  47 }
  48 static void b43_bus_bcma_device_disable(struct b43_bus_dev *dev,
  49                                               u32 core_specific_flags)
  50 {
  51         bcma_core_disable(dev->bdev, core_specific_flags);
  52 }
  53 static u16 b43_bus_bcma_read16(struct b43_bus_dev *dev, u16 offset)
  54 {
  55         return bcma_read16(dev->bdev, offset);
  56 }
  57 static u32 b43_bus_bcma_read32(struct b43_bus_dev *dev, u16 offset)
  58 {
  59         return bcma_read32(dev->bdev, offset);
  60 }
  61 static
  62 void b43_bus_bcma_write16(struct b43_bus_dev *dev, u16 offset, u16 value)
  63 {
  64         bcma_write16(dev->bdev, offset, value);
  65 }
  66 static
  67 void b43_bus_bcma_write32(struct b43_bus_dev *dev, u16 offset, u32 value)
  68 {
  69         bcma_write32(dev->bdev, offset, value);
  70 }
  71 static
  72 void b43_bus_bcma_block_read(struct b43_bus_dev *dev, void *buffer,
  73                              size_t count, u16 offset, u8 reg_width)
  74 {
  75         bcma_block_read(dev->bdev, buffer, count, offset, reg_width);
  76 }
  77 static
  78 void b43_bus_bcma_block_write(struct b43_bus_dev *dev, const void *buffer,
  79                               size_t count, u16 offset, u8 reg_width)
  80 {
  81         bcma_block_write(dev->bdev, buffer, count, offset, reg_width);
  82 }
  83
  84 struct b43_bus_dev *b43_bus_dev_bcma_init(struct bcma_device *core)
  85 {
  86         struct b43_bus_dev *dev = kzalloc(sizeof(*dev), GFP_KERNEL);
  87         if (!dev)
  88                 return NULL;
  89
  90         dev->bus_type = B43_BUS_BCMA;
  91         dev->bdev = core;
  92
  93         dev->bus_may_powerdown = b43_bus_bcma_bus_may_powerdown;
  94         dev->bus_powerup = b43_bus_bcma_bus_powerup;
  95         dev->device_is_enabled = b43_bus_bcma_device_is_enabled;
  96         dev->device_enable = b43_bus_bcma_device_enable;
  97         dev->device_disable = b43_bus_bcma_device_disable;
  98
  99         dev->read16 = b43_bus_bcma_read16;
 100         dev->read32 = b43_bus_bcma_read32;
 101         dev->write16 = b43_bus_bcma_write16;
 102         dev->write32 = b43_bus_bcma_write32;
 103         dev->block_read = b43_bus_bcma_block_read;
 104         dev->block_write = b43_bus_bcma_block_write;
 105
 106         dev->dev = &core->dev;
 107         dev->dma_dev = core->dma_dev;
 108         dev->irq = core->irq;
 109
 110         dev->board_vendor = core->bus->boardinfo.vendor;
 111         dev->board_type = core->bus->boardinfo.type;
 112         dev->board_rev = core->bus->sprom.board_rev;
 113
 114         dev->chip_id = core->bus->chipinfo.id;
 115         dev->chip_rev = core->bus->chipinfo.rev;
 116         dev->chip_pkg = core->bus->chipinfo.pkg;
 117
 118         dev->bus_sprom = &core->bus->sprom;
 119
 120         dev->core_id = core->id.id;
 121         dev->core_rev = core->id.rev;
 122
 123         return dev;
 124 }
 125 #endif /* CONFIG_B43_BCMA */
 126
 127 /* SSB */
 128 #ifdef CONFIG_B43_SSB
 129 static int b43_bus_ssb_bus_may_powerdown(struct b43_bus_dev *dev)
 130 {
 131         return ssb_bus_may_powerdown(dev->sdev->bus);
 132 }
 133 static int b43_bus_ssb_bus_powerup(struct b43_bus_dev *dev,
 134                                           bool dynamic_pctl)
 135 {
 136         return ssb_bus_powerup(dev->sdev->bus, dynamic_pctl);
 137 }
 138 static int b43_bus_ssb_device_is_enabled(struct b43_bus_dev *dev)
 139 {
 140         return ssb_device_is_enabled(dev->sdev);
 141 }
 142 static void b43_bus_ssb_device_enable(struct b43_bus_dev *dev,
 143                                              u32 core_specific_flags)
 144 {
 145         ssb_device_enable(dev->sdev, core_specific_flags);
 146 }
 147 static void b43_bus_ssb_device_disable(struct b43_bus_dev *dev,
 148                                               u32 core_specific_flags)
 149 {
 150         ssb_device_disable(dev->sdev, core_specific_flags);
 151 }
 152
 153 static u16 b43_bus_ssb_read16(struct b43_bus_dev *dev, u16 offset)
 154 {
 155         return ssb_read16(dev->sdev, offset);
 156 }
 157 static u32 b43_bus_ssb_read32(struct b43_bus_dev *dev, u16 offset)
 158 {
 159         return ssb_read32(dev->sdev, offset);
 160 }
 161 static void b43_bus_ssb_write16(struct b43_bus_dev *dev, u16 offset, u16 value)
 162 {
 163         ssb_write16(dev->sdev, offset, value);
 164 }
 165 static void b43_bus_ssb_write32(struct b43_bus_dev *dev, u16 offset, u32 value)
 166 {
 167         ssb_write32(dev->sdev, offset, value);
 168 }
 169 static void b43_bus_ssb_block_read(struct b43_bus_dev *dev, void *buffer,
 170                                    size_t count, u16 offset, u8 reg_width)
 171 {
 172         ssb_block_read(dev->sdev, buffer, count, offset, reg_width);
 173 }
 174 static
 175 void b43_bus_ssb_block_write(struct b43_bus_dev *dev, const void *buffer,
 176                              size_t count, u16 offset, u8 reg_width)
 177 {
 178         ssb_block_write(dev->sdev, buffer, count, offset, reg_width);
 179 }
 180
 181 struct b43_bus_dev *b43_bus_dev_ssb_init(struct ssb_device *sdev)
 182 {
 183         struct b43_bus_dev *dev;
 184
 185         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 186         if (!dev)
 187                 return NULL;
 188
 189         dev->bus_type = B43_BUS_SSB;
 190         dev->sdev = sdev;
 191
 192         dev->bus_may_powerdown = b43_bus_ssb_bus_may_powerdown;
 193         dev->bus_powerup = b43_bus_ssb_bus_powerup;
 194         dev->device_is_enabled = b43_bus_ssb_device_is_enabled;
 195         dev->device_enable = b43_bus_ssb_device_enable;
 196         dev->device_disable = b43_bus_ssb_device_disable;
 197
 198         dev->read16 = b43_bus_ssb_read16;
 199         dev->read32 = b43_bus_ssb_read32;
 200         dev->write16 = b43_bus_ssb_write16;
 201         dev->write32 = b43_bus_ssb_write32;
 202         dev->block_read = b43_bus_ssb_block_read;
 203         dev->block_write = b43_bus_ssb_block_write;
 204
 205         dev->dev = sdev->dev;
 206         dev->dma_dev = sdev->dma_dev;
 207         dev->irq = sdev->irq;
 208
 209         dev->board_vendor = sdev->bus->boardinfo.vendor;
 210         dev->board_type = sdev->bus->boardinfo.type;
 211         dev->board_rev = sdev->bus->sprom.board_rev;
 212
 213         dev->chip_id = sdev->bus->chip_id;
 214         dev->chip_rev = sdev->bus->chip_rev;
 215         dev->chip_pkg = sdev->bus->chip_package;
 216
 217         dev->bus_sprom = &sdev->bus->sprom;
 218
 219         dev->core_id = sdev->id.coreid;
 220         dev->core_rev = sdev->id.revision;
 221
 222         return dev;
 223 }
 224 #endif /* CONFIG_B43_SSB */
 225
 226 void *b43_bus_get_wldev(struct b43_bus_dev *dev)
 227 {
 228         switch (dev->bus_type) {
 229 #ifdef CONFIG_B43_BCMA
 230         case B43_BUS_BCMA:
 231                 return bcma_get_drvdata(dev->bdev);
 232 #endif
 233 #ifdef CONFIG_B43_SSB
 234         case B43_BUS_SSB:
 235                 return ssb_get_drvdata(dev->sdev);
 236 #endif
 237         }
 238         return NULL;
 239 }
 240
 241 void b43_bus_set_wldev(struct b43_bus_dev *dev, void *wldev)
 242 {
 243         switch (dev->bus_type) {
 244 #ifdef CONFIG_B43_BCMA
 245         case B43_BUS_BCMA:
 246                 bcma_set_drvdata(dev->bdev, wldev);
 247                 break;
 248 #endif
 249 #ifdef CONFIG_B43_SSB
 250         case B43_BUS_SSB:
 251                 ssb_set_drvdata(dev->sdev, wldev);
 252                 break;
 253 #endif
 254         }
 255 }