diff options
Diffstat (limited to 'drivers/net/wireless/b43/bus.c')
| -rw-r--r-- | drivers/net/wireless/b43/bus.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/bus.c b/drivers/net/wireless/b43/bus.c new file mode 100644 index 000000000..17d16a391 --- /dev/null +++ b/drivers/net/wireless/b43/bus.c @@ -0,0 +1,265 @@ +/* + + Broadcom B43 wireless driver + Bus abstraction layer + + Copyright (c) 2011 Rafał Miłecki <zajec5@gmail.com> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#ifdef CONFIG_BCM47XX_BCMA +#include <asm/mach-bcm47xx/bcm47xx.h> +#endif + +#include "b43.h" +#include "bus.h" + +/* BCMA */ +#ifdef CONFIG_B43_BCMA +static int b43_bus_bcma_bus_may_powerdown(struct b43_bus_dev *dev) +{ + return 0; /* bcma_bus_may_powerdown(dev->bdev->bus); */ +} +static int b43_bus_bcma_bus_powerup(struct b43_bus_dev *dev, + bool dynamic_pctl) +{ + return 0; /* bcma_bus_powerup(dev->sdev->bus, dynamic_pctl); */ +} +static int b43_bus_bcma_device_is_enabled(struct b43_bus_dev *dev) +{ + return bcma_core_is_enabled(dev->bdev); +} +static void b43_bus_bcma_device_enable(struct b43_bus_dev *dev, + u32 core_specific_flags) +{ + bcma_core_enable(dev->bdev, core_specific_flags); +} +static void b43_bus_bcma_device_disable(struct b43_bus_dev *dev, + u32 core_specific_flags) +{ + bcma_core_disable(dev->bdev, core_specific_flags); +} +static u16 b43_bus_bcma_read16(struct b43_bus_dev *dev, u16 offset) +{ + return bcma_read16(dev->bdev, offset); +} +static u32 b43_bus_bcma_read32(struct b43_bus_dev *dev, u16 offset) +{ + return bcma_read32(dev->bdev, offset); +} +static +void b43_bus_bcma_write16(struct b43_bus_dev *dev, u16 offset, u16 value) +{ + bcma_write16(dev->bdev, offset, value); +} +static +void b43_bus_bcma_write32(struct b43_bus_dev *dev, u16 offset, u32 value) +{ + bcma_write32(dev->bdev, offset, value); +} +static +void b43_bus_bcma_block_read(struct b43_bus_dev *dev, void *buffer, + size_t count, u16 offset, u8 reg_width) +{ + bcma_block_read(dev->bdev, buffer, count, offset, reg_width); +} +static +void b43_bus_bcma_block_write(struct b43_bus_dev *dev, const void *buffer, + size_t count, u16 offset, u8 reg_width) +{ + bcma_block_write(dev->bdev, buffer, count, offset, reg_width); +} + +struct b43_bus_dev *b43_bus_dev_bcma_init(struct bcma_device *core) +{ + struct b43_bus_dev *dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) + return NULL; + + dev->bus_type = B43_BUS_BCMA; + dev->bdev = core; + + dev->bus_may_powerdown = b43_bus_bcma_bus_may_powerdown; + dev->bus_powerup = b43_bus_bcma_bus_powerup; + dev->device_is_enabled = b43_bus_bcma_device_is_enabled; + dev->device_enable = b43_bus_bcma_device_enable; + dev->device_disable = b43_bus_bcma_device_disable; + + dev->read16 = b43_bus_bcma_read16; + dev->read32 = b43_bus_bcma_read32; + dev->write16 = b43_bus_bcma_write16; + dev->write32 = b43_bus_bcma_write32; + dev->block_read = b43_bus_bcma_block_read; + dev->block_write = b43_bus_bcma_block_write; +#ifdef CONFIG_BCM47XX_BCMA + if (b43_bus_host_is_pci(dev) && + bcm47xx_bus_type == BCM47XX_BUS_TYPE_BCMA && + bcm47xx_bus.bcma.bus.chipinfo.id == BCMA_CHIP_ID_BCM4716) + dev->flush_writes = true; +#endif + + dev->dev = &core->dev; + dev->dma_dev = core->dma_dev; + dev->irq = core->irq; + + dev->board_vendor = core->bus->boardinfo.vendor; + dev->board_type = core->bus->boardinfo.type; + dev->board_rev = core->bus->sprom.board_rev; + + dev->chip_id = core->bus->chipinfo.id; + dev->chip_rev = core->bus->chipinfo.rev; + dev->chip_pkg = core->bus->chipinfo.pkg; + + dev->bus_sprom = &core->bus->sprom; + + dev->core_id = core->id.id; + dev->core_rev = core->id.rev; + + return dev; +} +#endif /* CONFIG_B43_BCMA */ + +/* SSB */ +#ifdef CONFIG_B43_SSB +static int b43_bus_ssb_bus_may_powerdown(struct b43_bus_dev *dev) +{ + return ssb_bus_may_powerdown(dev->sdev->bus); +} +static int b43_bus_ssb_bus_powerup(struct b43_bus_dev *dev, + bool dynamic_pctl) +{ + return ssb_bus_powerup(dev->sdev->bus, dynamic_pctl); +} +static int b43_bus_ssb_device_is_enabled(struct b43_bus_dev *dev) +{ + return ssb_device_is_enabled(dev->sdev); +} +static void b43_bus_ssb_device_enable(struct b43_bus_dev *dev, + u32 core_specific_flags) +{ + ssb_device_enable(dev->sdev, core_specific_flags); +} +static void b43_bus_ssb_device_disable(struct b43_bus_dev *dev, + u32 core_specific_flags) +{ + ssb_device_disable(dev->sdev, core_specific_flags); +} + +static u16 b43_bus_ssb_read16(struct b43_bus_dev *dev, u16 offset) +{ + return ssb_read16(dev->sdev, offset); +} +static u32 b43_bus_ssb_read32(struct b43_bus_dev *dev, u16 offset) +{ + return ssb_read32(dev->sdev, offset); +} +static void b43_bus_ssb_write16(struct b43_bus_dev *dev, u16 offset, u16 value) +{ + ssb_write16(dev->sdev, offset, value); +} +static void b43_bus_ssb_write32(struct b43_bus_dev *dev, u16 offset, u32 value) +{ + ssb_write32(dev->sdev, offset, value); +} +static void b43_bus_ssb_block_read(struct b43_bus_dev *dev, void *buffer, + size_t count, u16 offset, u8 reg_width) +{ + ssb_block_read(dev->sdev, buffer, count, offset, reg_width); +} +static +void b43_bus_ssb_block_write(struct b43_bus_dev *dev, const void *buffer, + size_t count, u16 offset, u8 reg_width) +{ + ssb_block_write(dev->sdev, buffer, count, offset, reg_width); +} + +struct b43_bus_dev *b43_bus_dev_ssb_init(struct ssb_device *sdev) +{ + struct b43_bus_dev *dev; + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) + return NULL; + + dev->bus_type = B43_BUS_SSB; + dev->sdev = sdev; + + dev->bus_may_powerdown = b43_bus_ssb_bus_may_powerdown; + dev->bus_powerup = b43_bus_ssb_bus_powerup; + dev->device_is_enabled = b43_bus_ssb_device_is_enabled; + dev->device_enable = b43_bus_ssb_device_enable; + dev->device_disable = b43_bus_ssb_device_disable; + + dev->read16 = b43_bus_ssb_read16; + dev->read32 = b43_bus_ssb_read32; + dev->write16 = b43_bus_ssb_write16; + dev->write32 = b43_bus_ssb_write32; + dev->block_read = b43_bus_ssb_block_read; + dev->block_write = b43_bus_ssb_block_write; + + dev->dev = sdev->dev; + dev->dma_dev = sdev->dma_dev; + dev->irq = sdev->irq; + + dev->board_vendor = sdev->bus->boardinfo.vendor; + dev->board_type = sdev->bus->boardinfo.type; + dev->board_rev = sdev->bus->sprom.board_rev; + + dev->chip_id = sdev->bus->chip_id; + dev->chip_rev = sdev->bus->chip_rev; + dev->chip_pkg = sdev->bus->chip_package; + + dev->bus_sprom = &sdev->bus->sprom; + + dev->core_id = sdev->id.coreid; + dev->core_rev = sdev->id.revision; + + return dev; +} +#endif /* CONFIG_B43_SSB */ + +void *b43_bus_get_wldev(struct b43_bus_dev *dev) +{ + switch (dev->bus_type) { +#ifdef CONFIG_B43_BCMA + case B43_BUS_BCMA: + return bcma_get_drvdata(dev->bdev); +#endif +#ifdef CONFIG_B43_SSB + case B43_BUS_SSB: + return ssb_get_drvdata(dev->sdev); +#endif + } + return NULL; +} + +void b43_bus_set_wldev(struct b43_bus_dev *dev, void *wldev) +{ + switch (dev->bus_type) { +#ifdef CONFIG_B43_BCMA + case B43_BUS_BCMA: + bcma_set_drvdata(dev->bdev, wldev); + break; +#endif +#ifdef CONFIG_B43_SSB + case B43_BUS_SSB: + ssb_set_drvdata(dev->sdev, wldev); + break; +#endif + } +} |