1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 4 Broadcom B43 wireless driver 5 Bus abstraction layer 6 7 Copyright (c) 2011 Rafał Miłecki <zajec5@gmail.com> 8 9 10*/ 11 12#ifdef CONFIG_BCM47XX_BCMA 13#include <asm/mach-bcm47xx/bcm47xx.h> 14#endif 15 16#include "b43.h" 17#include "bus.h" 18 19/* BCMA */ 20#ifdef CONFIG_B43_BCMA 21static int b43_bus_bcma_bus_may_powerdown(struct b43_bus_dev *dev) 22{ 23 return 0; /* bcma_bus_may_powerdown(dev->bdev->bus); */ 24} 25static int b43_bus_bcma_bus_powerup(struct b43_bus_dev *dev, 26 bool dynamic_pctl) 27{ 28 return 0; /* bcma_bus_powerup(dev->sdev->bus, dynamic_pctl); */ 29} 30static int b43_bus_bcma_device_is_enabled(struct b43_bus_dev *dev) 31{ 32 return bcma_core_is_enabled(dev->bdev); 33} 34static void b43_bus_bcma_device_enable(struct b43_bus_dev *dev, 35 u32 core_specific_flags) 36{ 37 bcma_core_enable(dev->bdev, core_specific_flags); 38} 39static void b43_bus_bcma_device_disable(struct b43_bus_dev *dev, 40 u32 core_specific_flags) 41{ 42 bcma_core_disable(dev->bdev, core_specific_flags); 43} 44static u16 b43_bus_bcma_read16(struct b43_bus_dev *dev, u16 offset) 45{ 46 return bcma_read16(dev->bdev, offset); 47} 48static u32 b43_bus_bcma_read32(struct b43_bus_dev *dev, u16 offset) 49{ 50 return bcma_read32(dev->bdev, offset); 51} 52static 53void b43_bus_bcma_write16(struct b43_bus_dev *dev, u16 offset, u16 value) 54{ 55 bcma_write16(dev->bdev, offset, value); 56} 57static 58void b43_bus_bcma_write32(struct b43_bus_dev *dev, u16 offset, u32 value) 59{ 60 bcma_write32(dev->bdev, offset, value); 61} 62static 63void b43_bus_bcma_block_read(struct b43_bus_dev *dev, void *buffer, 64 size_t count, u16 offset, u8 reg_width) 65{ 66 bcma_block_read(dev->bdev, buffer, count, offset, reg_width); 67} 68static 69void b43_bus_bcma_block_write(struct b43_bus_dev *dev, const void *buffer, 70 size_t count, u16 offset, u8 reg_width) 71{ 72 bcma_block_write(dev->bdev, buffer, count, offset, reg_width); 73} 74 75struct b43_bus_dev *b43_bus_dev_bcma_init(struct bcma_device *core) 76{ 77 struct b43_bus_dev *dev = kzalloc(sizeof(*dev), GFP_KERNEL); 78 if (!dev) 79 return NULL; 80 81 dev->bus_type = B43_BUS_BCMA; 82 dev->bdev = core; 83 84 dev->bus_may_powerdown = b43_bus_bcma_bus_may_powerdown; 85 dev->bus_powerup = b43_bus_bcma_bus_powerup; 86 dev->device_is_enabled = b43_bus_bcma_device_is_enabled; 87 dev->device_enable = b43_bus_bcma_device_enable; 88 dev->device_disable = b43_bus_bcma_device_disable; 89 90 dev->read16 = b43_bus_bcma_read16; 91 dev->read32 = b43_bus_bcma_read32; 92 dev->write16 = b43_bus_bcma_write16; 93 dev->write32 = b43_bus_bcma_write32; 94 dev->block_read = b43_bus_bcma_block_read; 95 dev->block_write = b43_bus_bcma_block_write; 96#ifdef CONFIG_BCM47XX_BCMA 97 if (b43_bus_host_is_pci(dev) && 98 bcm47xx_bus_type == BCM47XX_BUS_TYPE_BCMA && 99 bcm47xx_bus.bcma.bus.chipinfo.id == BCMA_CHIP_ID_BCM4716) 100 dev->flush_writes = true; 101#endif 102 103 dev->dev = &core->dev; 104 dev->dma_dev = core->dma_dev; 105 dev->irq = core->irq; 106 107 dev->board_vendor = core->bus->boardinfo.vendor; 108 dev->board_type = core->bus->boardinfo.type; 109 dev->board_rev = core->bus->sprom.board_rev; 110 111 dev->chip_id = core->bus->chipinfo.id; 112 dev->chip_rev = core->bus->chipinfo.rev; 113 dev->chip_pkg = core->bus->chipinfo.pkg; 114 115 dev->bus_sprom = &core->bus->sprom; 116 117 dev->core_id = core->id.id; 118 dev->core_rev = core->id.rev; 119 120 return dev; 121} 122#endif /* CONFIG_B43_BCMA */ 123 124/* SSB */ 125#ifdef CONFIG_B43_SSB 126static int b43_bus_ssb_bus_may_powerdown(struct b43_bus_dev *dev) 127{ 128 return ssb_bus_may_powerdown(dev->sdev->bus); 129} 130static int b43_bus_ssb_bus_powerup(struct b43_bus_dev *dev, 131 bool dynamic_pctl) 132{ 133 return ssb_bus_powerup(dev->sdev->bus, dynamic_pctl); 134} 135static int b43_bus_ssb_device_is_enabled(struct b43_bus_dev *dev) 136{ 137 return ssb_device_is_enabled(dev->sdev); 138} 139static void b43_bus_ssb_device_enable(struct b43_bus_dev *dev, 140 u32 core_specific_flags) 141{ 142 ssb_device_enable(dev->sdev, core_specific_flags); 143} 144static void b43_bus_ssb_device_disable(struct b43_bus_dev *dev, 145 u32 core_specific_flags) 146{ 147 ssb_device_disable(dev->sdev, core_specific_flags); 148} 149 150static u16 b43_bus_ssb_read16(struct b43_bus_dev *dev, u16 offset) 151{ 152 return ssb_read16(dev->sdev, offset); 153} 154static u32 b43_bus_ssb_read32(struct b43_bus_dev *dev, u16 offset) 155{ 156 return ssb_read32(dev->sdev, offset); 157} 158static void b43_bus_ssb_write16(struct b43_bus_dev *dev, u16 offset, u16 value) 159{ 160 ssb_write16(dev->sdev, offset, value); 161} 162static void b43_bus_ssb_write32(struct b43_bus_dev *dev, u16 offset, u32 value) 163{ 164 ssb_write32(dev->sdev, offset, value); 165} 166static void b43_bus_ssb_block_read(struct b43_bus_dev *dev, void *buffer, 167 size_t count, u16 offset, u8 reg_width) 168{ 169 ssb_block_read(dev->sdev, buffer, count, offset, reg_width); 170} 171static 172void b43_bus_ssb_block_write(struct b43_bus_dev *dev, const void *buffer, 173 size_t count, u16 offset, u8 reg_width) 174{ 175 ssb_block_write(dev->sdev, buffer, count, offset, reg_width); 176} 177 178struct b43_bus_dev *b43_bus_dev_ssb_init(struct ssb_device *sdev) 179{ 180 struct b43_bus_dev *dev; 181 182 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 183 if (!dev) 184 return NULL; 185 186 dev->bus_type = B43_BUS_SSB; 187 dev->sdev = sdev; 188 189 dev->bus_may_powerdown = b43_bus_ssb_bus_may_powerdown; 190 dev->bus_powerup = b43_bus_ssb_bus_powerup; 191 dev->device_is_enabled = b43_bus_ssb_device_is_enabled; 192 dev->device_enable = b43_bus_ssb_device_enable; 193 dev->device_disable = b43_bus_ssb_device_disable; 194 195 dev->read16 = b43_bus_ssb_read16; 196 dev->read32 = b43_bus_ssb_read32; 197 dev->write16 = b43_bus_ssb_write16; 198 dev->write32 = b43_bus_ssb_write32; 199 dev->block_read = b43_bus_ssb_block_read; 200 dev->block_write = b43_bus_ssb_block_write; 201 202 dev->dev = sdev->dev; 203 dev->dma_dev = sdev->dma_dev; 204 dev->irq = sdev->irq; 205 206 dev->board_vendor = sdev->bus->boardinfo.vendor; 207 dev->board_type = sdev->bus->boardinfo.type; 208 dev->board_rev = sdev->bus->sprom.board_rev; 209 210 dev->chip_id = sdev->bus->chip_id; 211 dev->chip_rev = sdev->bus->chip_rev; 212 dev->chip_pkg = sdev->bus->chip_package; 213 214 dev->bus_sprom = &sdev->bus->sprom; 215 216 dev->core_id = sdev->id.coreid; 217 dev->core_rev = sdev->id.revision; 218 219 return dev; 220} 221#endif /* CONFIG_B43_SSB */ 222 223void *b43_bus_get_wldev(struct b43_bus_dev *dev) 224{ 225 switch (dev->bus_type) { 226#ifdef CONFIG_B43_BCMA 227 case B43_BUS_BCMA: 228 return bcma_get_drvdata(dev->bdev); 229#endif 230#ifdef CONFIG_B43_SSB 231 case B43_BUS_SSB: 232 return ssb_get_drvdata(dev->sdev); 233#endif 234 } 235 return NULL; 236} 237 238void b43_bus_set_wldev(struct b43_bus_dev *dev, void *wldev) 239{ 240 switch (dev->bus_type) { 241#ifdef CONFIG_B43_BCMA 242 case B43_BUS_BCMA: 243 bcma_set_drvdata(dev->bdev, wldev); 244 break; 245#endif 246#ifdef CONFIG_B43_SSB 247 case B43_BUS_SSB: 248 ssb_set_drvdata(dev->sdev, wldev); 249 break; 250#endif 251 } 252} 253