d8c17e1597
This changes the b43-PIO code to use the new SSB block-I/O. This reduces the overhead by removing lots of function calls, pointer dereferencing, if-conditionals any byteswapping for each packet data word. This also fixes a harmless sparse endianness warning. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
114 lines
3.3 KiB
Text
114 lines
3.3 KiB
Text
config B43
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tristate "Broadcom 43xx wireless support (mac80211 stack)"
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depends on SSB_POSSIBLE && MAC80211 && WLAN_80211
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select SSB
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select FW_LOADER
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select HW_RANDOM
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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 (EXPERIMENTAL)"
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depends on B43 && SSB_PCMCIAHOST_POSSIBLE && EXPERIMENTAL
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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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# Data transfers to the device via PIO
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# This is only needed on PCMCIA devices. All others can do DMA properly.
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config B43_PIO
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bool
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depends on B43 && (B43_PCMCIA || B43_FORCE_PIO)
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select SSB_BLOCKIO
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default y
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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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# 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 RFKILL support,
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# if it's possible.
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config B43_RFKILL
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bool
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depends on B43 && (RFKILL = y || RFKILL = B43) && RFKILL_INPUT && (INPUT_POLLDEV = y || INPUT_POLLDEV = 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 messages.
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Say Y, if you want to find out why the driver does not
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work for you.
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config B43_FORCE_PIO
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bool "Force usage of PIO instead of DMA"
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depends on B43 && B43_DEBUG
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---help---
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This will disable DMA and always enable PIO instead.
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Say N!
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This is only for debugging the PIO engine code. You do
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_NOT_ want to enable this.
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