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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 4 Broadcom B43 wireless driver5 Bus abstraction layer6 7 Copyright (c) 2011 Rafał Miłecki <zajec5@gmail.com>8 9 10*/11 12#ifdef CONFIG_BCM47XX_BCMA13#include <asm/mach-bcm47xx/bcm47xx.h>14#endif15 16#include "b43.h"17#include "bus.h"18 19/* BCMA */20#ifdef CONFIG_B43_BCMA21static 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}52static53void b43_bus_bcma_write16(struct b43_bus_dev *dev, u16 offset, u16 value)54{55 bcma_write16(dev->bdev, offset, value);56}57static58void b43_bus_bcma_write32(struct b43_bus_dev *dev, u16 offset, u32 value)59{60 bcma_write32(dev->bdev, offset, value);61}62static63void 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}68static69void 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_BCMA97 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#endif102 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_SSB126static 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}171static172void 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_BCMA227 case B43_BUS_BCMA:228 return bcma_get_drvdata(dev->bdev);229#endif230#ifdef CONFIG_B43_SSB231 case B43_BUS_SSB:232 return ssb_get_drvdata(dev->sdev);233#endif234 }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_BCMA242 case B43_BUS_BCMA:243 bcma_set_drvdata(dev->bdev, wldev);244 break;245#endif246#ifdef CONFIG_B43_SSB247 case B43_BUS_SSB:248 ssb_set_drvdata(dev->sdev, wldev);249 break;250#endif251 }252}253