[B43LEGACY]: add mac80211-based driver for legacy BCM43xx devices

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -804,6 +804,13 @@ L:	linux-wireless@vger.kernel.org
 W:	http://bcm43xx.berlios.de/
 S:	Maintained
 
+B43LEGACY WIRELESS DRIVER
+P:	Larry Finger
+M:	Larry.Finger@lwfinger.net
+L:	linux-wireless@vger.kernel.org
+W:	http://bcm43xx.berlios.de/
+S:	Maintained
+
 BCM43XX WIRELESS DRIVER (SOFTMAC BASED VERSION)
 P:	Larry Finger
 M:	Larry.Finger@lwfinger.net

drivers/net/wireless/Kconfig

@@ -580,6 +580,7 @@ config ADM8211
 source "drivers/net/wireless/hostap/Kconfig"
 source "drivers/net/wireless/bcm43xx/Kconfig"
 source "drivers/net/wireless/b43/Kconfig"
+source "drivers/net/wireless/b43legacy/Kconfig"
 source "drivers/net/wireless/zd1211rw/Kconfig"
 
 endmenu

drivers/net/wireless/Makefile

@@ -37,6 +37,7 @@ obj-$(CONFIG_PRISM54)		+= prism54/
 obj-$(CONFIG_HOSTAP)		+= hostap/
 obj-$(CONFIG_BCM43XX)		+= bcm43xx/
 obj-$(CONFIG_B43)		+= b43/
+obj-$(CONFIG_B43LEGACY)		+= b43legacy/
 obj-$(CONFIG_ZD1211RW)		+= zd1211rw/
 
 # 16-bit wireless PCMCIA client drivers

drivers/net/wireless/b43legacy/Kconfig

@@ -0,0 +1,89 @@
+config B43LEGACY
+	tristate "Broadcom 43xx-legacy wireless support (mac80211 stack)"
+	depends on SSB_POSSIBLE && MAC80211 && WLAN_80211
+	select SSB
+	select FW_LOADER
+	select HW_RANDOM
+	---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
+	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
+
+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

drivers/net/wireless/b43legacy/Makefile

@@ -0,0 +1,14 @@
+obj-$(CONFIG_B43LEGACY) += b43legacy.o
+b43legacy-obj-$(CONFIG_B43LEGACY_DEBUG) += debugfs.o
+
+b43legacy-obj-$(CONFIG_B43LEGACY_DMA) += dma.o
+b43legacy-obj-$(CONFIG_B43LEGACY_PIO) += pio.o
+
+b43legacy-objs := main.o \
+		ilt.o \
+		leds.o \
+		phy.o \
+		radio.o \
+		sysfs.o \
+		xmit.o \
+		$(b43legacy-obj-y)