mirror of https://gitee.com/openkylin/linux.git
68 lines
1.9 KiB
Plaintext
68 lines
1.9 KiB
Plaintext
config BCM43XX
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tristate "Broadcom BCM43xx wireless support"
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depends on PCI && IEEE80211 && IEEE80211_SOFTMAC && WLAN_80211 && EXPERIMENTAL
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select WIRELESS_EXT
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select FW_LOADER
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select HW_RANDOM
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---help---
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This is an experimental driver for the Broadcom 43xx wireless chip,
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found in the Apple Airport Extreme and various other devices.
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config BCM43XX_DEBUG
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bool "Broadcom BCM43xx debugging (RECOMMENDED)"
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depends on BCM43XX
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default y
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---help---
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Broadcom 43xx debugging messages.
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Say Y, because the driver is still very experimental and
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this will help you get it running.
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config BCM43XX_DMA
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bool
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depends on BCM43XX
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config BCM43XX_PIO
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bool
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depends on BCM43XX
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choice
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prompt "BCM43xx data transfer mode"
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depends on BCM43XX
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default BCM43XX_DMA_AND_PIO_MODE
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config BCM43XX_DMA_AND_PIO_MODE
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bool "DMA + PIO"
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select BCM43XX_DMA
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select BCM43XX_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.
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The actually used mode is selectable through the module
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parameter "pio". If the module parameter is pio=0, DMA is used.
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Otherwise PIO is used. DMA is default.
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If unsure, choose this option.
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config BCM43XX_DMA_MODE
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bool "DMA (Direct Memory Access) only"
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select BCM43XX_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 BCM43XX_PIO_MODE
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bool "PIO (Programmed I/O) only"
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select BCM43XX_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 43xx series support PIO.
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The 4306 (Apple Airport Extreme and others) supports PIO, while
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the 4318 is known to _not_ support PIO.
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Only use PIO, if DMA does not work for you.
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endchoice
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