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config B43
tristate "Broadcom 43xx wireless support (mac80211 stack)"
depends on SSB_POSSIBLE && MAC80211 && WLAN_80211 && HAS_DMA
select SSB
select FW_LOADER
select HW_RANDOM
---help---
b43 is a driver for the Broadcom 43xx series wireless devices.
Check "lspci" for something like
"Broadcom Corporation BCM43XX 802.11 Wireless LAN Controller"
to determine whether you own such a device.
This driver supports the new BCM43xx IEEE 802.11G devices, but not
the old IEEE 802.11B devices. Old devices are supported by
the b43legacy driver.
Note that this has nothing to do with the standard that your AccessPoint
supports (A, B, G or a combination).
IEEE 802.11G devices can talk to IEEE 802.11B AccessPoints.
It is safe to include both b43 and b43legacy as the underlying glue
layer will automatically load the correct version for your device.
This driver uses V4 firmware, which must be installed separately using
b43-fwcutter.
This driver can be built as a module (recommended) that will be called "b43".
If unsure, say M.
# Auto-select SSB PCI-HOST support, if possible
config B43_PCI_AUTOSELECT
bool
depends on B43 && SSB_PCIHOST_POSSIBLE
select SSB_PCIHOST
select SSB_B43_PCI_BRIDGE
default y
# Auto-select SSB PCICORE driver, if possible
config B43_PCICORE_AUTOSELECT
bool
depends on B43 && SSB_DRIVER_PCICORE_POSSIBLE
select SSB_DRIVER_PCICORE
default y
config B43_PCMCIA
bool "Broadcom 43xx PCMCIA device support (EXPERIMENTAL)"
depends on B43 && SSB_PCMCIAHOST_POSSIBLE && EXPERIMENTAL
select SSB_PCMCIAHOST
---help---
Broadcom 43xx PCMCIA device support.
Support for 16bit PCMCIA devices.
Please note that most PC-CARD devices are _NOT_ 16bit PCMCIA
devices, but 32bit CardBUS devices. CardBUS devices are supported
out of the box by b43.
With this config option you can drive b43 cards in
CompactFlash formfactor in a PCMCIA adaptor.
CF b43 cards can sometimes be found in handheld PCs.
It's safe to select Y here, even if you don't have a B43 PCMCIA device.
If unsure, say N.
# Data transfers to the device via PIO
# This is only needed on PCMCIA devices. All others can do DMA properly.
config B43_PIO
bool
depends on B43 && (B43_PCMCIA || B43_FORCE_PIO)
select SSB_BLOCKIO
default y
config B43_NPHY
bool "Pre IEEE 802.11n support (BROKEN)"
depends on B43 && EXPERIMENTAL && BROKEN
---help---
Support for the IEEE 802.11n draft.
THIS IS BROKEN AND DOES NOT WORK YET.
SAY N.
config B43_PHY_LP
bool "IEEE 802.11g LP-PHY support (BROKEN)"
depends on B43 && EXPERIMENTAL && BROKEN
---help---
Support for the LP-PHY.
The LP-PHY is an IEEE 802.11g based PHY built into some notebooks
and embedded devices.
THIS IS BROKEN AND DOES NOT WORK YET.
SAY N.
# This config option automatically enables b43 LEDS support,
# if it's possible.
config B43_LEDS
bool
depends on B43 && MAC80211_LEDS && (LEDS_CLASS = y || LEDS_CLASS = B43)
default y
# This config option automatically enables b43 RFKILL support,
# if it's possible.
config B43_RFKILL
bool
depends on B43 && (RFKILL = y || RFKILL = B43) && RFKILL_INPUT && (INPUT_POLLDEV = y || INPUT_POLLDEV = B43)
default y
config B43_DEBUG
bool "Broadcom 43xx debugging"
depends on B43
---help---
Broadcom 43xx debugging.
This adds additional runtime sanity checks and statistics to the driver.
These checks and statistics might me expensive and hurt runtime performance
of your system.
This also adds the b43 debugfs interface.
Do not enable this, unless you are debugging the driver.
Say N, if you are a distributor or user building a release kernel
for production use.
Only say Y, if you are debugging a problem in the b43 driver sourcecode.
config B43_FORCE_PIO
bool "Force usage of PIO instead of DMA"
depends on B43 && B43_DEBUG
---help---
This will disable DMA and always enable PIO instead.
Say N!
This is only for debugging the PIO engine code. You do
_NOT_ want to enable this.