1config BCM43XX 2 tristate "Broadcom BCM43xx wireless support" 3 depends on PCI && IEEE80211 && IEEE80211_SOFTMAC && WLAN_80211 && EXPERIMENTAL 4 select WIRELESS_EXT 5 select FW_LOADER 6 select HW_RANDOM 7 ---help--- 8 This is an experimental driver for the Broadcom 43xx wireless chip, 9 found in the Apple Airport Extreme and various other devices. 10 11config BCM43XX_DEBUG 12 bool "Broadcom BCM43xx debugging (RECOMMENDED)" 13 depends on BCM43XX 14 default y 15 ---help--- 16 Broadcom 43xx debugging messages. 17 Say Y, because the driver is still very experimental and 18 this will help you get it running. 19 20config BCM43XX_DMA 21 bool 22 depends on BCM43XX 23 24config BCM43XX_PIO 25 bool 26 depends on BCM43XX 27 28choice 29 prompt "BCM43xx data transfer mode" 30 depends on BCM43XX 31 default BCM43XX_DMA_AND_PIO_MODE 32 33config BCM43XX_DMA_AND_PIO_MODE 34 bool "DMA + PIO" 35 select BCM43XX_DMA 36 select BCM43XX_PIO 37 ---help--- 38 Include both, Direct Memory Access (DMA) and Programmed I/O (PIO) 39 data transfer modes. 40 The actually used mode is selectable through the module 41 parameter "pio". If the module parameter is pio=0, DMA is used. 42 Otherwise PIO is used. DMA is default. 43 44 If unsure, choose this option. 45 46config BCM43XX_DMA_MODE 47 bool "DMA (Direct Memory Access) only" 48 select BCM43XX_DMA 49 ---help--- 50 Only include Direct Memory Access (DMA). 51 This reduces the size of the driver module, by omitting the PIO code. 52 53config BCM43XX_PIO_MODE 54 bool "PIO (Programmed I/O) only" 55 select BCM43XX_PIO 56 ---help--- 57 Only include Programmed I/O (PIO). 58 This reduces the size of the driver module, by omitting the DMA code. 59 Please note that PIO transfers are slow (compared to DMA). 60 61 Also note that not all devices of the 43xx series support PIO. 62 The 4306 (Apple Airport Extreme and others) supports PIO, while 63 the 4318 is known to _not_ support PIO. 64 65 Only use PIO, if DMA does not work for you. 66 67endchoice 68