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