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If userencounter the "Fatal DMA Problem" with a BCM43XX device, and still wish to use b43 as the driver, their only option is to rebuild the kernel with CONFIG_B43_FORCE_PIO. This patch removes this option and allows PIO mode to be selected with a load-time parameter for the module. Note that the configuration variable CONFIG_B43_PIO is also removed. Once the DMA problem with the BCM4312 devices is solved, this patch will likely be reverted. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Tested-by: John Daiker <daikerjohn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
134 lines
4.0 KiB
Plaintext
134 lines
4.0 KiB
Plaintext
config B43
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tristate "Broadcom 43xx wireless support (mac80211 stack)"
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depends on SSB_POSSIBLE && MAC80211 && HAS_DMA
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select SSB
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select FW_LOADER
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select SSB_BLOCKIO
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---help---
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b43 is a driver for the Broadcom 43xx series wireless devices.
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Check "lspci" for something like
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"Broadcom Corporation BCM43XX 802.11 Wireless LAN Controller"
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to determine whether you own such a device.
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This driver supports the new BCM43xx IEEE 802.11G devices, but not
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the old IEEE 802.11B devices. Old devices are supported by
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the b43legacy driver.
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Note that this has nothing to do with the standard that your AccessPoint
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supports (A, B, G or a combination).
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IEEE 802.11G devices can talk to IEEE 802.11B AccessPoints.
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It is safe to include both b43 and b43legacy as the underlying glue
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layer will automatically load the correct version for your device.
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This driver uses V4 firmware, which must be installed separately using
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b43-fwcutter.
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This driver can be built as a module (recommended) that will be called "b43".
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If unsure, say M.
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# Auto-select SSB PCI-HOST support, if possible
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config B43_PCI_AUTOSELECT
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bool
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depends on B43 && SSB_PCIHOST_POSSIBLE
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select SSB_PCIHOST
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select SSB_B43_PCI_BRIDGE
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default y
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# Auto-select SSB PCICORE driver, if possible
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config B43_PCICORE_AUTOSELECT
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bool
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depends on B43 && SSB_DRIVER_PCICORE_POSSIBLE
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select SSB_DRIVER_PCICORE
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default y
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config B43_PCMCIA
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bool "Broadcom 43xx PCMCIA device support"
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depends on B43 && SSB_PCMCIAHOST_POSSIBLE
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select SSB_PCMCIAHOST
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---help---
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Broadcom 43xx PCMCIA device support.
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Support for 16bit PCMCIA devices.
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Please note that most PC-CARD devices are _NOT_ 16bit PCMCIA
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devices, but 32bit CardBUS devices. CardBUS devices are supported
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out of the box by b43.
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With this config option you can drive b43 cards in
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CompactFlash formfactor in a PCMCIA adaptor.
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CF b43 cards can sometimes be found in handheld PCs.
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It's safe to select Y here, even if you don't have a B43 PCMCIA device.
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If unsure, say N.
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config B43_SDIO
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bool "Broadcom 43xx SDIO device support (EXPERIMENTAL)"
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depends on B43 && SSB_SDIOHOST_POSSIBLE && EXPERIMENTAL
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select SSB_SDIOHOST
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---help---
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Broadcom 43xx device support for Soft-MAC SDIO devices.
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With this config option you can drive Soft-MAC b43 cards with a
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Secure Digital I/O interface.
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This includes the WLAN daughter card found on the Nintendo Wii
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video game console.
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Note that this does not support Broadcom 43xx Full-MAC devices.
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It's safe to select Y here, even if you don't have a B43 SDIO device.
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If unsure, say N.
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config B43_NPHY
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bool "Pre IEEE 802.11n support (BROKEN)"
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depends on B43 && EXPERIMENTAL && BROKEN
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---help---
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Support for the IEEE 802.11n draft.
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THIS IS BROKEN AND DOES NOT WORK YET.
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SAY N.
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config B43_PHY_LP
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bool "Support for low-power (LP-PHY) devices (EXPERIMENTAL)"
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depends on B43 && EXPERIMENTAL
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default y
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---help---
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Support for the LP-PHY.
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The LP-PHY is a low-power PHY built into some notebooks
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and embedded devices. It supports 802.11a/g
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(802.11a support is optional, and currently disabled).
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# This config option automatically enables b43 LEDS support,
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# if it's possible.
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config B43_LEDS
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bool
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depends on B43 && MAC80211_LEDS && (LEDS_CLASS = y || LEDS_CLASS = B43)
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default y
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# This config option automatically enables b43 HW-RNG support,
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# if the HW-RNG core is enabled.
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config B43_HWRNG
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bool
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depends on B43 && (HW_RANDOM = y || HW_RANDOM = B43)
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default y
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config B43_DEBUG
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bool "Broadcom 43xx debugging"
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depends on B43
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---help---
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Broadcom 43xx debugging.
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This adds additional runtime sanity checks and statistics to the driver.
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These checks and statistics might me expensive and hurt runtime performance
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of your system.
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This also adds the b43 debugfs interface.
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Do not enable this, unless you are debugging the driver.
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Say N, if you are a distributor or user building a release kernel
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for production use.
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Only say Y, if you are debugging a problem in the b43 driver sourcecode.
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