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         /*
 111         dev->board_vendor = core->bus->boardinfo.vendor;
 112         dev->board_type = core->bus->boardinfo.type;
 113         dev->board_rev = core->bus->boardinfo.rev;
 114         */
 115
 116         dev->chip_id = core->bus->chipinfo.id;
 117         dev->chip_rev = core->bus->chipinfo.rev;
 118         dev->chip_pkg = core->bus->chipinfo.pkg;
 119
 120         dev->bus_sprom = &core->bus->sprom;
 121
 122         dev->core_id = core->id.id;
 123         dev->core_rev = core->id.rev;
 124
 125         return dev;
 126 }
 127 #endif /* CONFIG_B43_BCMA */
 128
 129 /* SSB */
 130 #ifdef CONFIG_B43_SSB
 131 static int b43_bus_ssb_bus_may_powerdown(struct b43_bus_dev *dev)
 132 {
 133         return ssb_bus_may_powerdown(dev->sdev->bus);
 134 }
 135 static int b43_bus_ssb_bus_powerup(struct b43_bus_dev *dev,
 136                                           bool dynamic_pctl)
 137 {
 138         return ssb_bus_powerup(dev->sdev->bus, dynamic_pctl);
 139 }
 140 static int b43_bus_ssb_device_is_enabled(struct b43_bus_dev *dev)
 141 {
 142         return ssb_device_is_enabled(dev->sdev);
 143 }
 144 static void b43_bus_ssb_device_enable(struct b43_bus_dev *dev,
 145                                              u32 core_specific_flags)
 146 {
 147         ssb_device_enable(dev->sdev, core_specific_flags);
 148 }
 149 static void b43_bus_ssb_device_disable(struct b43_bus_dev *dev,
 150                                               u32 core_specific_flags)
 151 {
 152         ssb_device_disable(dev->sdev, core_specific_flags);
 153 }
 154
 155 static u16 b43_bus_ssb_read16(struct b43_bus_dev *dev, u16 offset)
 156 {
 157         return ssb_read16(dev->sdev, offset);
 158 }
 159 static u32 b43_bus_ssb_read32(struct b43_bus_dev *dev, u16 offset)
 160 {
 161         return ssb_read32(dev->sdev, offset);
 162 }
 163 static void b43_bus_ssb_write16(struct b43_bus_dev *dev, u16 offset, u16 value)
 164 {
 165         ssb_write16(dev->sdev, offset, value);
 166 }
 167 static void b43_bus_ssb_write32(struct b43_bus_dev *dev, u16 offset, u32 value)
 168 {
 169         ssb_write32(dev->sdev, offset, value);
 170 }
 171 static void b43_bus_ssb_block_read(struct b43_bus_dev *dev, void *buffer,
 172                                    size_t count, u16 offset, u8 reg_width)
 173 {
 174         ssb_block_read(dev->sdev, buffer, count, offset, reg_width);
 175 }
 176 static
 177 void b43_bus_ssb_block_write(struct b43_bus_dev *dev, const void *buffer,
 178                              size_t count, u16 offset, u8 reg_width)
 179 {
 180         ssb_block_write(dev->sdev, buffer, count, offset, reg_width);
 181 }
 182
 183 struct b43_bus_dev *b43_bus_dev_ssb_init(struct ssb_device *sdev)
 184 {
 185         struct b43_bus_dev *dev;
 186
 187         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 188         if (!dev)
 189                 return NULL;
 190
 191         dev->bus_type = B43_BUS_SSB;
 192         dev->sdev = sdev;
 193
 194         dev->bus_may_powerdown = b43_bus_ssb_bus_may_powerdown;
 195         dev->bus_powerup = b43_bus_ssb_bus_powerup;
 196         dev->device_is_enabled = b43_bus_ssb_device_is_enabled;
 197         dev->device_enable = b43_bus_ssb_device_enable;
 198         dev->device_disable = b43_bus_ssb_device_disable;
 199
 200         dev->read16 = b43_bus_ssb_read16;
 201         dev->read32 = b43_bus_ssb_read32;
 202         dev->write16 = b43_bus_ssb_write16;
 203         dev->write32 = b43_bus_ssb_write32;
 204         dev->block_read = b43_bus_ssb_block_read;
 205         dev->block_write = b43_bus_ssb_block_write;
 206
 207         dev->dev = sdev->dev;
 208         dev->dma_dev = sdev->dma_dev;
 209         dev->irq = sdev->irq;
 210
 211         dev->board_vendor = sdev->bus->boardinfo.vendor;
 212         dev->board_type = sdev->bus->boardinfo.type;
 213         dev->board_rev = sdev->bus->boardinfo.rev;
 214
 215         dev->chip_id = sdev->bus->chip_id;
 216         dev->chip_rev = sdev->bus->chip_rev;
 217         dev->chip_pkg = sdev->bus->chip_package;
 218
 219         dev->bus_sprom = &sdev->bus->sprom;
 220
 221         dev->core_id = sdev->id.coreid;
 222         dev->core_rev = sdev->id.revision;
 223
 224         return dev;
 225 }
 226 #endif /* CONFIG_B43_SSB */
 227
 228 void *b43_bus_get_wldev(struct b43_bus_dev *dev)
 229 {
 230         switch (dev->bus_type) {
 231 #ifdef CONFIG_B43_BCMA
 232         case B43_BUS_BCMA:
 233                 return bcma_get_drvdata(dev->bdev);
 234 #endif
 235 #ifdef CONFIG_B43_SSB
 236         case B43_BUS_SSB:
 237                 return ssb_get_drvdata(dev->sdev);
 238 #endif
 239         }
 240         return NULL;
 241 }
 242
 243 void b43_bus_set_wldev(struct b43_bus_dev *dev, void *wldev)
 244 {
 245         switch (dev->bus_type) {
 246 #ifdef CONFIG_B43_BCMA
 247         case B43_BUS_BCMA:
 248                 bcma_set_drvdata(dev->bdev, wldev);
 249                 break;
 250 #endif
 251 #ifdef CONFIG_B43_SSB
 252         case B43_BUS_SSB:
 253                 ssb_set_drvdata(dev->sdev, wldev);
 254                 break;
 255 #endif
 256         }
 257 }