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# SPDX-License-Identifier: GPL-2.0-only
config B43LEGACY
tristate "Broadcom 43xx-legacy wireless support (mac80211 stack)"
depends on SSB_POSSIBLE && MAC80211 && HAS_DMA
select SSB
select FW_LOADER
help
b43legacy is a driver for 802.11b devices from Broadcom (BCM4301 and
BCM4303) and early model 802.11g chips (BCM4306 Ver. 2) used in the
Linksys WPC54G V1 PCMCIA devices.
Newer 802.11g and 802.11a devices need b43.
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 V3 firmware, which must be installed separately using
b43-fwcutter.
This driver can be built as a module (recommended) that will be
called "b43legacy". If unsure, say M.
# Auto-select SSB PCI-HOST support, if possible
config B43LEGACY_PCI_AUTOSELECT
bool
depends on B43LEGACY && SSB_PCIHOST_POSSIBLE
select SSB_PCIHOST
select SSB_B43_PCI_BRIDGE
default y
# Auto-select SSB PCICORE driver, if possible
config B43LEGACY_PCICORE_AUTOSELECT
bool
depends on B43LEGACY && SSB_DRIVER_PCICORE_POSSIBLE
select SSB_DRIVER_PCICORE
default y
# LED support
# This config option automatically enables b43legacy LEDS support,
# if it's possible.
config B43LEGACY_LEDS
bool
depends on B43LEGACY && MAC80211_LEDS && (LEDS_CLASS = y || LEDS_CLASS = B43LEGACY)
default y
# This config option automatically enables b43 HW-RNG support,
# if the HW-RNG core is enabled.
config B43LEGACY_HWRNG
bool
depends on B43LEGACY && (HW_RANDOM = y || HW_RANDOM = B43LEGACY)
default y
config B43LEGACY_DEBUG
bool "Broadcom 43xx-legacy debugging"
depends on B43LEGACY
default y
help
Say Y, because this information will help you get the driver running.
This option generates a minimum of log output.
config B43LEGACY_DMA
bool
depends on B43LEGACY
config B43LEGACY_PIO
bool
depends on B43LEGACY
choice
prompt "Broadcom 43xx-legacy data transfer mode"
depends on B43LEGACY
default B43LEGACY_DMA_AND_PIO_MODE
config B43LEGACY_DMA_AND_PIO_MODE
bool "DMA + PIO"
select B43LEGACY_DMA
select B43LEGACY_PIO
help
Include both, Direct Memory Access (DMA) and Programmed I/O (PIO)
data transfer modes. The mode actually used is selectable through
the module parameter "pio". With pio=0 as a module parameter, the
default DMA is used, otherwise PIO is used.
If unsure, choose this option.
config B43LEGACY_DMA_MODE
bool "DMA (Direct Memory Access) only"
select B43LEGACY_DMA
help
Only include Direct Memory Access (DMA).
This reduces the size of the driver module, by omitting the PIO code.
config B43LEGACY_PIO_MODE
bool "PIO (Programmed I/O) only"
select B43LEGACY_PIO
help
Only include Programmed I/O (PIO).
This reduces the size of the driver module, by omitting the DMA code.
Please note that PIO transfers are slow (compared to DMA).
Also note that not all devices of the b43legacy series support PIO.
You should use PIO only if DMA does not work for you.
endchoice
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