[B43]: add mac80211-based driver for modern BCM43xx devices

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -795,6 +795,15 @@ L:	linux-hams@vger.kernel.org
 W:	http://www.baycom.org/~tom/ham/ham.html
 S:	Maintained
 
+B43 WIRELESS DRIVER
+P:	Michael Buesch
+M:	mb@bu3sch.de
+P:	Stefano Brivio
+M:	st3@riseup.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

@@ -579,6 +579,7 @@ config ADM8211
 
 source "drivers/net/wireless/hostap/Kconfig"
 source "drivers/net/wireless/bcm43xx/Kconfig"
+source "drivers/net/wireless/b43/Kconfig"
 source "drivers/net/wireless/zd1211rw/Kconfig"
 
 endmenu

drivers/net/wireless/Makefile

@@ -36,6 +36,7 @@ obj-$(CONFIG_PRISM54)		+= prism54/
 
 obj-$(CONFIG_HOSTAP)		+= hostap/
 obj-$(CONFIG_BCM43XX)		+= bcm43xx/
+obj-$(CONFIG_B43)		+= b43/
 obj-$(CONFIG_ZD1211RW)		+= zd1211rw/
 
 # 16-bit wireless PCMCIA client drivers

drivers/net/wireless/b43/Kconfig

+config B43
+	tristate "Broadcom 43xx wireless support (mac80211 stack)"
+	depends on SSB_POSSIBLE && MAC80211 && WLAN_80211
+	select SSB
+	select FW_LOADER
+	select HW_RANDOM
+	---help---
+	  b43 is a driver for the Broadcom 43xx series wireless devices.
+
+	  Check "lspci" for something like
+	  "Broadcom Corporation BCM43XX 802.11 Wireless LAN Controller"
+	  to determine whether you own such a device.
+
+	  This driver supports the new BCM43xx IEEE 802.11G devices, but not
+	  the old IEEE 802.11B devices. Old devices are supported by
+	  the b43legacy driver.
+	  Note that this has nothing to do with the standard that your AccessPoint
+	  supports (A, B, G or a combination).
+	  IEEE 802.11G devices can talk to IEEE 802.11B AccessPoints.
+
+	  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 V4 firmware, which must be installed separately using
+	  b43-fwcutter.
+
+	  This driver can be built as a module (recommended) that will be called "b43".
+	  If unsure, say M.
+
+# Auto-select SSB PCI-HOST support, if possible
+config B43_PCI_AUTOSELECT
+	bool
+	depends on B43 && SSB_PCIHOST_POSSIBLE
+	select SSB_PCIHOST
+	default y
+
+# Auto-select SSB PCICORE driver, if possible
+config B43_PCICORE_AUTOSELECT
+	bool
+	depends on B43 && SSB_DRIVER_PCICORE_POSSIBLE
+	select SSB_DRIVER_PCICORE
+	default y
+
+config B43_PCMCIA
+	bool "Broadcom 43xx PCMCIA device support (EXPERIMENTAL)"
+	depends on B43 && SSB_PCMCIAHOST_POSSIBLE && EXPERIMENTAL
+	select SSB_PCMCIAHOST
+	---help---
+	  Broadcom 43xx PCMCIA device support.
+
+	  Support for 16bit PCMCIA devices.
+	  Please note that most PC-CARD devices are _NOT_ 16bit PCMCIA
+	  devices, but 32bit CardBUS devices. CardBUS devices are supported
+	  out of the box by b43.
+
+	  With this config option you can drive b43 cards in
+	  CompactFlash formfactor in a PCMCIA adaptor.
+	  CF b43 cards can sometimes be found in handheld PCs.
+
+	  It's safe to select Y here, even if you don't have a B43 PCMCIA device.
+
+	  If unsure, say N.
+
+config B43_DEBUG
+	bool "Broadcom 43xx debugging"
+	depends on B43
+	---help---
+	  Broadcom 43xx debugging messages.
+
+	  Say Y, if you want to find out why the driver does not
+	  work for you.
+
+config B43_DMA
+	bool
+	depends on B43
+config B43_PIO
+	bool
+	depends on B43
+
+choice
+	prompt "Broadcom 43xx data transfer mode"
+	depends on B43
+	default B43_DMA_AND_PIO_MODE
+
+config B43_DMA_AND_PIO_MODE
+	bool "DMA + PIO"
+	select B43_DMA
+	select B43_PIO
+	---help---
+	  Include both, Direct Memory Access (DMA) and Programmed I/O (PIO)
+	  data transfer modes.
+	  The actually used mode is selectable through the module
+	  parameter "pio". If the module parameter is pio=0, DMA is used.
+	  Otherwise PIO is used. DMA is default.
+
+	  If unsure, choose this option.
+
+config B43_DMA_MODE
+	bool "DMA (Direct Memory Access) only"
+	select B43_DMA
+	---help---
+	  Only include Direct Memory Access (DMA).
+	  This reduces the size of the driver module, by omitting the PIO code.
+
+config B43_PIO_MODE
+	bool "PIO (Programmed I/O) only"
+	select B43_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 43xx series support PIO.
+	  The 4306 (Apple Airport Extreme and others) supports PIO, while
+	  the 4318 is known to _not_ support PIO.
+
+	  Only use PIO, if DMA does not work for you.
+
+endchoice

drivers/net/wireless/b43/Makefile

+# b43 core
+b43-y				+= main.o
+b43-y				+= tables.o
+b43-y				+= phy.o
+b43-y				+= sysfs.o
+b43-y				+= leds.o
+b43-y				+= xmit.o
+b43-y				+= lo.o
+# b43 PCMCIA support
+b43-$(CONFIG_B43_PCMCIA)	+= pcmcia.o
+# b43 debugging
+b43-$(CONFIG_B43_DEBUG)		+= debugfs.o
+# b43 DMA and PIO
+b43-$(CONFIG_B43_DMA)		+= dma.o
+b43-$(CONFIG_B43_PIO)		+= pio.o
+
+obj-$(CONFIG_B43)		+= b43.o

drivers/net/wireless/b43/debugfs.h

+#ifndef B43_DEBUGFS_H_
+#define B43_DEBUGFS_H_
+
+struct b43_wldev;
+struct b43_txstatus;
+
+enum b43_dyndbg {		/* Dynamic debugging features */
+	B43_DBG_XMITPOWER,
+	B43_DBG_DMAOVERFLOW,
+	B43_DBG_DMAVERBOSE,
+	B43_DBG_PWORK_FAST,
+	B43_DBG_PWORK_STOP,
+	__B43_NR_DYNDBG,
+};
+
+#ifdef CONFIG_B43_DEBUG
+
+struct dentry;
+
+#define B43_NR_LOGGED_TXSTATUS	100
+
+struct b43_txstatus_log {
+	struct b43_txstatus *log;
+	int end;
+	spinlock_t lock;
+};
+
+struct b43_dfs_file {
+	struct dentry *dentry;
+	char *buffer;
+	size_t data_len;
+};
+
+struct b43_dfsentry {
+	struct b43_wldev *dev;
+	struct dentry *subdir;
+
+	struct b43_dfs_file file_tsf;
+	struct b43_dfs_file file_ucode_regs;
+	struct b43_dfs_file file_shm;
+	struct b43_dfs_file file_txstat;
+	struct b43_dfs_file file_txpower_g;
+	struct b43_dfs_file file_restart;
+	struct b43_dfs_file file_loctls;
+
+	struct b43_txstatus_log txstatlog;
+
+	/* Enabled/Disabled list for the dynamic debugging features. */
+	u32 dyn_debug[__B43_NR_DYNDBG];
+	/* Dentries for the dynamic debugging entries. */
+	struct dentry *dyn_debug_dentries[__B43_NR_DYNDBG];
+};
+
+int b43_debug(struct b43_wldev *dev, enum b43_dyndbg feature);
+
+void b43_debugfs_init(void);
+void b43_debugfs_exit(void);
+void b43_debugfs_add_device(struct b43_wldev *dev);
+void b43_debugfs_remove_device(struct b43_wldev *dev);
+void b43_debugfs_log_txstat(struct b43_wldev *dev,
+			    const struct b43_txstatus *status);
+
+#else /* CONFIG_B43_DEBUG */
+
+static inline int b43_debug(struct b43_wldev *dev, enum b43_dyndbg feature)
+{
+	return 0;
+}
+
+static inline void b43_debugfs_init(void)
+{
+}
+static inline void b43_debugfs_exit(void)
+{
+}
+static inline void b43_debugfs_add_device(struct b43_wldev *dev)
+{
+}
+static inline void b43_debugfs_remove_device(struct b43_wldev *dev)
+{
+}
+static inline void b43_debugfs_log_txstat(struct b43_wldev *dev,
+					  const struct b43_txstatus *status)
+{
+}
+
+#endif /* CONFIG_B43_DEBUG */
+
+#endif /* B43_DEBUGFS_H_ */

drivers/net/wireless/b43/leds.c

+/*
+
+  Broadcom B43 wireless driver
+
+  Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
+                     Stefano Brivio <st3@riseup.net>
+                     Michael Buesch <mb@bu3sch.de>
+                     Danny van Dyk <kugelfang@gentoo.org>
+                     Andreas Jaggi <andreas.jaggi@waterwave.ch>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; see the file COPYING.  If not, write to
+  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+  Boston, MA 02110-1301, USA.
+
+*/
+
+#include "b43.h"
+#include "leds.h"
+#include "main.h"
+
+static void b43_led_changestate(struct b43_led *led)
+{
+	struct b43_wldev *dev = led->dev;
+	const int index = b43_led_index(led);
+	const u16 mask = (1 << index);
+	u16 ledctl;
+
+	B43_WARN_ON(!(index >= 0 && index < B43_NR_LEDS));
+	B43_WARN_ON(!led->blink_interval);
+	ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
+	ledctl = (ledctl & mask) ? (ledctl & ~mask) : (ledctl | mask);
+	b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
+}
+
+static void b43_led_blink(unsigned long d)
+{
+	struct b43_led *led = (struct b43_led *)d;
+	struct b43_wldev *dev = led->dev;
+	unsigned long flags;
+
+	spin_lock_irqsave(&dev->wl->leds_lock, flags);
+	if (led->blink_interval) {
+		b43_led_changestate(led);
+		mod_timer(&led->blink_timer, jiffies + led->blink_interval);
+	}
+	spin_unlock_irqrestore(&dev->wl->leds_lock, flags);
+}
+
+static void b43_led_blink_start(struct b43_led *led, unsigned long interval)
+{
+	if (led->blink_interval)
+		return;
+	led->blink_interval = interval;
+	b43_led_changestate(led);
+	led->blink_timer.expires = jiffies + interval;
+	add_timer(&led->blink_timer);
+}
+
+static void b43_led_blink_stop(struct b43_led *led, int sync)
+{
+	struct b43_wldev *dev = led->dev;
+	const int index = b43_led_index(led);
+	u16 ledctl;
+
+	if (!led->blink_interval)
+		return;
+	if (unlikely(sync))
+		del_timer_sync(&led->blink_timer);
+	else
+		del_timer(&led->blink_timer);
+	led->blink_interval = 0;
+
+	/* Make sure the LED is turned off. */
+	B43_WARN_ON(!(index >= 0 && index < B43_NR_LEDS));
+	ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
+	if (led->activelow)
+		ledctl |= (1 << index);
+	else
+		ledctl &= ~(1 << index);
+	b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
+}
+
+static void b43_led_init_hardcoded(struct b43_wldev *dev,
+				   struct b43_led *led, int led_index)
+{
+	struct ssb_bus *bus = dev->dev->bus;
+
+	/* This function is called, if the behaviour (and activelow)
+	 * information for a LED is missing in the SPROM.
+	 * We hardcode the behaviour values for various devices here.
+	 * Note that the B43_LED_TEST_XXX behaviour values can
+	 * be used to figure out which led is mapped to which index.
+	 */
+
+	switch (led_index) {
+	case 0:
+		led->behaviour = B43_LED_ACTIVITY;
+		led->activelow = 1;
+		if (bus->boardinfo.vendor == PCI_VENDOR_ID_COMPAQ)
+			led->behaviour = B43_LED_RADIO_ALL;
+		break;
+	case 1:
+		led->behaviour = B43_LED_RADIO_B;
+		if (bus->boardinfo.vendor == PCI_VENDOR_ID_ASUSTEK)
+			led->behaviour = B43_LED_ASSOC;
+		break;
+	case 2:
+		led->behaviour = B43_LED_RADIO_A;
+		break;
+	case 3:
+		led->behaviour = B43_LED_OFF;
+		break;
+	default:
+		B43_WARN_ON(1);
+	}
+}
+
+int b43_leds_init(struct b43_wldev *dev)
+{
+	struct b43_led *led;
+	u8 sprom[4];
+	int i;
+
+	sprom[0] = dev->dev->bus->sprom.r1.gpio0;
+	sprom[1] = dev->dev->bus->sprom.r1.gpio1;
+	sprom[2] = dev->dev->bus->sprom.r1.gpio2;
+	sprom[3] = dev->dev->bus->sprom.r1.gpio3;
+
+	for (i = 0; i < B43_NR_LEDS; i++) {
+		led = &(dev->leds[i]);
+		led->dev = dev;
+		setup_timer(&led->blink_timer,
+			    b43_led_blink, (unsigned long)led);
+
+		if (sprom[i] == 0xFF) {
+			b43_led_init_hardcoded(dev, led, i);
+		} else {
+			led->behaviour = sprom[i] & B43_LED_BEHAVIOUR;
+			led->activelow = !!(sprom[i] & B43_LED_ACTIVELOW);
+		}
+	}
+
+	return 0;
+}
+
+void b43_leds_exit(struct b43_wldev *dev)
+{
+	struct b43_led *led;
+	int i;
+
+	for (i = 0; i < B43_NR_LEDS; i++) {
+		led = &(dev->leds[i]);
+		b43_led_blink_stop(led, 1);
+	}
+	b43_leds_switch_all(dev, 0);
+}
+
+void b43_leds_update(struct b43_wldev *dev, int activity)
+{
+	struct b43_led *led;
+	struct b43_phy *phy = &dev->phy;
+	const int transferring =
+	    (jiffies - dev->stats.last_tx) < B43_LED_XFER_THRES;
+	int i, turn_on;
+	unsigned long interval = 0;
+	u16 ledctl;
+	unsigned long flags;
+
+	spin_lock_irqsave(&dev->wl->leds_lock, flags);
+	ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
+	for (i = 0; i < B43_NR_LEDS; i++) {
+		led = &(dev->leds[i]);
+
+		turn_on = 0;
+		switch (led->behaviour) {
+		case B43_LED_INACTIVE:
+			continue;
+		case B43_LED_OFF:
+			break;
+		case B43_LED_ON:
+			turn_on = 1;
+			break;
+		case B43_LED_ACTIVITY:
+			turn_on = activity;
+			break;
+		case B43_LED_RADIO_ALL:
+			turn_on = phy->radio_on && b43_is_hw_radio_enabled(dev);
+			break;
+		case B43_LED_RADIO_A:
+			turn_on = (phy->radio_on && b43_is_hw_radio_enabled(dev)
+				   && phy->type == B43_PHYTYPE_A);
+			break;
+		case B43_LED_RADIO_B:
+			turn_on = (phy->radio_on && b43_is_hw_radio_enabled(dev)
+				   && (phy->type == B43_PHYTYPE_B
+				       || phy->type == B43_PHYTYPE_G));
+			break;
+		case B43_LED_MODE_BG:
+			if (phy->type == B43_PHYTYPE_G
+			    && b43_is_hw_radio_enabled(dev)
+			    && 1 /*FIXME: using G rates. */ )
+				turn_on = 1;
+			break;
+		case B43_LED_TRANSFER:
+			if (transferring)
+				b43_led_blink_start(led, B43_LEDBLINK_MEDIUM);
+			else
+				b43_led_blink_stop(led, 0);
+			continue;
+		case B43_LED_APTRANSFER:
+			if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) {
+				if (transferring) {
+					interval = B43_LEDBLINK_FAST;
+					turn_on = 1;
+				}
+			} else {
+				turn_on = 1;
+				if (0 /*TODO: not assoc */ )
+					interval = B43_LEDBLINK_SLOW;
+				else if (transferring)
+					interval = B43_LEDBLINK_FAST;
+				else
+					turn_on = 0;
+			}
+			if (turn_on)
+				b43_led_blink_start(led, interval);
+			else
+				b43_led_blink_stop(led, 0);
+			continue;
+		case B43_LED_WEIRD:
+			//TODO
+			break;
+		case B43_LED_ASSOC:
+			if (1 /*dev->softmac->associated */ )
+				turn_on = 1;
+			break;
+#ifdef CONFIG_B43_DEBUG
+		case B43_LED_TEST_BLINKSLOW:
+			b43_led_blink_start(led, B43_LEDBLINK_SLOW);
+			continue;
+		case B43_LED_TEST_BLINKMEDIUM:
+			b43_led_blink_start(led, B43_LEDBLINK_MEDIUM);
+			continue;
+		case B43_LED_TEST_BLINKFAST:
+			b43_led_blink_start(led, B43_LEDBLINK_FAST);
+			continue;
+#endif /* CONFIG_B43_DEBUG */
+		default:
+			B43_WARN_ON(1);
+		};
+
+		if (led->activelow)
+			turn_on = !turn_on;
+		if (turn_on)
+			ledctl |= (1 << i);
+		else
+			ledctl &= ~(1 << i);
+	}
+	b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
+	spin_unlock_irqrestore(&dev->wl->leds_lock, flags);
+}
+
+void b43_leds_switch_all(struct b43_wldev *dev, int on)
+{
+	struct b43_led *led;
+	u16 ledctl;
+	int i;
+	int bit_on;
+	unsigned long flags;
+
+	spin_lock_irqsave(&dev->wl->leds_lock, flags);
+	ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
+	for (i = 0; i < B43_NR_LEDS; i++) {
+		led = &(dev->leds[i]);
+		if (led->behaviour == B43_LED_INACTIVE)
+			continue;
+		if (on)
+			bit_on = led->activelow ? 0 : 1;
+		else
+			bit_on = led->activelow ? 1 : 0;
+		if (bit_on)
+			ledctl |= (1 << i);
+		else
+			ledctl &= ~(1 << i);
+	}
+	b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
+	spin_unlock_irqrestore(&dev->wl->leds_lock, flags);
+}

drivers/net/wireless/b43/leds.h

+#ifndef B43_LEDS_H_
+#define B43_LEDS_H_
+
+#include <linux/types.h>
+#include <linux/timer.h>
+
+struct b43_led {
+	u8 behaviour:7;
+	u8 activelow:1;
+
+	struct b43_wldev *dev;
+	struct timer_list blink_timer;
+	unsigned long blink_interval;
+};
+#define b43_led_index(led)	((int)((led) - (led)->dev->leds))
+
+/* Delay between state changes when blinking in jiffies */
+#define B43_LEDBLINK_SLOW		(HZ / 1)
+#define B43_LEDBLINK_MEDIUM		(HZ / 4)
+#define B43_LEDBLINK_FAST		(HZ / 8)
+
+#define B43_LED_XFER_THRES		(HZ / 100)
+
+#define B43_LED_BEHAVIOUR		0x7F
+#define B43_LED_ACTIVELOW		0x80
+enum {				/* LED behaviour values */
+	B43_LED_OFF,
+	B43_LED_ON,
+	B43_LED_ACTIVITY,
+	B43_LED_RADIO_ALL,
+	B43_LED_RADIO_A,
+	B43_LED_RADIO_B,
+	B43_LED_MODE_BG,
+	B43_LED_TRANSFER,
+	B43_LED_APTRANSFER,
+	B43_LED_WEIRD,		//FIXME
+	B43_LED_ASSOC,
+	B43_LED_INACTIVE,
+
+	/* Behaviour values for testing.
+	 * With these values it is easier to figure out
+	 * the real behaviour of leds, in case the SPROM
+	 * is missing information.
+	 */
+	B43_LED_TEST_BLINKSLOW,
+	B43_LED_TEST_BLINKMEDIUM,
+	B43_LED_TEST_BLINKFAST,
+};
+
+int b43_leds_init(struct b43_wldev *dev);
+void b43_leds_exit(struct b43_wldev *dev);
+void b43_leds_update(struct b43_wldev *dev, int activity);
+void b43_leds_switch_all(struct b43_wldev *dev, int on);
+
+#endif /* B43_LEDS_H_ */

drivers/net/wireless/b43/lo.h

+#ifndef B43_LO_H_
+#define B43_LO_H_
+
+#include "phy.h"
+
+struct b43_wldev;
+
+/* Local Oscillator control value-pair. */
+struct b43_loctl {
+	/* Control values. */
+	s8 i;
+	s8 q;
+	/* "Used by hardware" flag. */
+	bool used;
+#ifdef CONFIG_B43_DEBUG
+	/* Is this lo-control-array entry calibrated? */
+	bool calibrated;
+#endif
+};
+
+/* Debugging: Poison value for i and q values. */
+#define B43_LOCTL_POISON	111
+
+/* loctl->calibrated debugging mechanism */
+#ifdef CONFIG_B43_DEBUG
+static inline void b43_loctl_set_calibrated(struct b43_loctl *loctl,
+					    bool calibrated)
+{
+	loctl->calibrated = calibrated;
+}
+static inline bool b43_loctl_is_calibrated(struct b43_loctl *loctl)
+{
+	return loctl->calibrated;
+}
+#else
+static inline void b43_loctl_set_calibrated(struct b43_loctl *loctl,
+					    bool calibrated)
+{
+}
+static inline bool b43_loctl_is_calibrated(struct b43_loctl *loctl)
+{
+	return 1;
+}
+#endif
+
+/* TX Power LO Control Array.
+ * Value-pairs to adjust the LocalOscillator are stored
+ * in this structure.
+ * There are two different set of values. One for "Flag is Set"
+ * and one for "Flag is Unset".
+ * By "Flag" the flag in struct b43_rfatt is meant.
+ * The Value arrays are two-dimensional. The first index
+ * is the baseband attenuation and the second index
+ * is the radio attenuation.
+ * Use b43_get_lo_g_ctl() to retrieve a value from the lists.
+ */
+struct b43_txpower_lo_control {
+#define B43_NR_BB	12
+#define B43_NR_RF	16
+	/* LO Control values, with PAD Mixer */
+	struct b43_loctl with_padmix[B43_NR_BB][B43_NR_RF];
+	/* LO Control values, without PAD Mixer */
+	struct b43_loctl no_padmix[B43_NR_BB][B43_NR_RF];
+
+	/* Flag to indicate a complete rebuild of the two tables above
+	 * to the LO measuring code. */
+	bool rebuild;
+
+	/* Lists of valid RF and BB attenuation values for this device. */
+	struct b43_rfatt_list rfatt_list;
+	struct b43_bbatt_list bbatt_list;
+
+	/* Current TX Bias value */
+	u8 tx_bias;
+	/* Current TX Magnification Value (if used by the device) */
+	u8 tx_magn;
+
+	/* GPHY LO is measured. */
+	bool lo_measured;
+
+	/* Saved device PowerVector */
+	u64 power_vector;
+};
+
+/* Measure the BPHY Local Oscillator. */
+void b43_lo_b_measure(struct b43_wldev *dev);
+/* Measure the BPHY/GPHY Local Oscillator. */
+void b43_lo_g_measure(struct b43_wldev *dev);
+
+/* Adjust the Local Oscillator to the saved attenuation
+ * and txctl values.
+ */
+void b43_lo_g_adjust(struct b43_wldev *dev);
+/* Adjust to specific values. */
+void b43_lo_g_adjust_to(struct b43_wldev *dev,
+			u16 rfatt, u16 bbatt, u16 tx_control);
+
+/* Mark all possible b43_lo_g_ctl as "unused" */
+void b43_lo_g_ctl_mark_all_unused(struct b43_wldev *dev);
+/* Mark the b43_lo_g_ctl corresponding to the current
+ * attenuation values as used.
+ */
+void b43_lo_g_ctl_mark_cur_used(struct b43_wldev *dev);
+
+/* Get a reference to a LO Control value pair in the
+ * TX Power LO Control Array.
+ */
+struct b43_loctl *b43_get_lo_g_ctl(struct b43_wldev *dev,
+				   const struct b43_rfatt *rfatt,
+				   const struct b43_bbatt *bbatt);
+
+#endif /* B43_LO_H_ */

drivers/net/wireless/b43/main.h

+/*
+
+  Broadcom B43 wireless driver
+
+  Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
+                     Stefano Brivio <st3@riseup.net>
+                     Michael Buesch <mb@bu3sch.de>
+                     Danny van Dyk <kugelfang@gentoo.org>
+                     Andreas Jaggi <andreas.jaggi@waterwave.ch>
+
+  Some parts of the code in this file are derived from the ipw2200
+  driver  Copyright(c) 2003 - 2004 Intel Corporation.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; see the file COPYING.  If not, write to
+  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+  Boston, MA 02110-1301, USA.
+
+*/
+
+#ifndef B43_MAIN_H_
+#define B43_MAIN_H_
+
+#include "b43.h"
+
+#define P4D_BYT3S(magic, nr_bytes)	u8 __p4dding##magic[nr_bytes]
+#define P4D_BYTES(line, nr_bytes)	P4D_BYT3S(line, nr_bytes)
+/* Magic helper macro to pad structures. Ignore those above. It's magic. */
+#define PAD_BYTES(nr_bytes)		P4D_BYTES( __LINE__ , (nr_bytes))
+
+/* Lightweight function to convert a frequency (in Mhz) to a channel number. */
+static inline u8 b43_freq_to_channel_a(int freq)
+{
+	return ((freq - 5000) / 5);
+}
+static inline u8 b43_freq_to_channel_bg(int freq)
+{
+	u8 channel;
+
+	if (freq == 2484)
+		channel = 14;
+	else
+		channel = (freq - 2407) / 5;
+
+	return channel;
+}
+static inline u8 b43_freq_to_channel(struct b43_wldev *dev, int freq)
+{
+	if (dev->phy.type == B43_PHYTYPE_A)
+		return b43_freq_to_channel_a(freq);
+	return b43_freq_to_channel_bg(freq);
+}
+
+/* Lightweight function to convert a channel number to a frequency (in Mhz). */
+static inline int b43_channel_to_freq_a(u8 channel)
+{
+	return (5000 + (5 * channel));
+}
+static inline int b43_channel_to_freq_bg(u8 channel)
+{
+	int freq;
+
+	if (channel == 14)
+		freq = 2484;
+	else
+		freq = 2407 + (5 * channel);
+
+	return freq;
+}
+static inline int b43_channel_to_freq(struct b43_wldev *dev, u8 channel)
+{
+	if (dev->phy.type == B43_PHYTYPE_A)
+		return b43_channel_to_freq_a(channel);
+	return b43_channel_to_freq_bg(channel);
+}
+
+static inline int b43_is_cck_rate(int rate)
+{
+	return (rate == B43_CCK_RATE_1MB ||
+		rate == B43_CCK_RATE_2MB ||
+		rate == B43_CCK_RATE_5MB || rate == B43_CCK_RATE_11MB);
+}
+
+static inline int b43_is_ofdm_rate(int rate)
+{
+	return !b43_is_cck_rate(rate);
+}
+
+static inline int b43_is_hw_radio_enabled(struct b43_wldev *dev)
+{
+	/* function to return state of hardware enable of radio
+	 * returns 0 if radio disabled, 1 if radio enabled
+	 */
+	struct b43_phy *phy = &dev->phy;
+
+	if (phy->rev >= 3)
+		return ((b43_read32(dev, B43_MMIO_RADIO_HWENABLED_HI)
+			 & B43_MMIO_RADIO_HWENABLED_HI_MASK)
+			== 0) ? 1 : 0;
+	else
+		return ((b43_read16(dev, B43_MMIO_RADIO_HWENABLED_LO)
+			 & B43_MMIO_RADIO_HWENABLED_LO_MASK)
+			== 0) ? 0 : 1;
+}
+
+void b43_tsf_read(struct b43_wldev *dev, u64 * tsf);
+void b43_tsf_write(struct b43_wldev *dev, u64 tsf);
+
+u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset);
+u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset);
+void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value);
+void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value);
+
+u32 b43_hf_read(struct b43_wldev *dev);
+void b43_hf_write(struct b43_wldev *dev, u32 value);
+
+void b43_dummy_transmission(struct b43_wldev *dev);
+
+void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags);
+
+void b43_mac_suspend(struct b43_wldev *dev);
+void b43_mac_enable(struct b43_wldev *dev);
+
+void b43_controller_restart(struct b43_wldev *dev, const char *reason);
+
+#define B43_PS_ENABLED	(1 << 0)	/* Force enable hardware power saving */
+#define B43_PS_DISABLED	(1 << 1)	/* Force disable hardware power saving */
+#define B43_PS_AWAKE	(1 << 2)	/* Force device awake */
+#define B43_PS_ASLEEP	(1 << 3)	/* Force device asleep */
+void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags);
+
+#endif /* B43_MAIN_H_ */

drivers/net/wireless/b43/pcmcia.c

+/*
+
+  Broadcom B43 wireless driver
+
+  Copyright (c) 2007 Michael Buesch <mb@bu3sch.de>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; see the file COPYING.  If not, write to
+  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+  Boston, MA 02110-1301, USA.
+
+*/
+
+#include <linux/ssb/ssb.h>
+
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cisreg.h>
+
+static /*const */ struct pcmcia_device_id b43_pcmcia_tbl[] = {
+	PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x448),
+	PCMCIA_DEVICE_NULL,
+};
+
+MODULE_DEVICE_TABLE(pcmcia, b43_pcmcia_tbl);
+
+#ifdef CONFIG_PM
+static int b43_pcmcia_suspend(struct pcmcia_device *dev)
+{
+	//TODO
+	return 0;
+}
+
+static int b43_pcmcia_resume(struct pcmcia_device *dev)
+{
+	//TODO
+	return 0;
+}
+#else /* CONFIG_PM */
+# define b43_pcmcia_suspend		NULL
+# define b43_pcmcia_resume		NULL
+#endif /* CONFIG_PM */
+
+static int __devinit b43_pcmcia_probe(struct pcmcia_device *dev)
+{
+	struct ssb_bus *ssb;
+	win_req_t win;
+	memreq_t mem;
+	tuple_t tuple;
+	cisparse_t parse;
+	int err = -ENOMEM;
+	int res;
+	unsigned char buf[64];
+
+	ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
+	if (!ssb)
+		goto out;
+
+	err = -ENODEV;
+	tuple.DesiredTuple = CISTPL_CONFIG;
+	tuple.Attributes = 0;
+	tuple.TupleData = buf;
+	tuple.TupleDataMax = sizeof(buf);
+	tuple.TupleOffset = 0;
+
+	res = pcmcia_get_first_tuple(dev, &tuple);
+	if (res != CS_SUCCESS)
+		goto err_kfree_ssb;
+	res = pcmcia_get_tuple_data(dev, &tuple);
+	if (res != CS_SUCCESS)
+		goto err_kfree_ssb;
+	res = pcmcia_parse_tuple(dev, &tuple, &parse);
+	if (res != CS_SUCCESS)
+		goto err_kfree_ssb;
+
+	dev->conf.ConfigBase = parse.config.base;
+	dev->conf.Present = parse.config.rmask[0];
+
+	dev->io.BasePort2 = 0;
+	dev->io.NumPorts2 = 0;
+	dev->io.Attributes2 = 0;
+
+	win.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT;
+	win.Base = 0;
+	win.Size = SSB_CORE_SIZE;
+	win.AccessSpeed = 1000;
+	res = pcmcia_request_window(&dev, &win, &dev->win);
+	if (res != CS_SUCCESS)
+		goto err_kfree_ssb;
+
+	mem.CardOffset = 0;
+	mem.Page = 0;
+	res = pcmcia_map_mem_page(dev->win, &mem);
+	if (res != CS_SUCCESS)
+		goto err_kfree_ssb;
+
+	res = pcmcia_request_configuration(dev, &dev->conf);
+	if (res != CS_SUCCESS)
+		goto err_disable;
+
+	err = ssb_bus_pcmciabus_register(ssb, dev, win.Base);
+	dev->priv = ssb;
+
+      out:
+	return err;
+      err_disable:
+	pcmcia_disable_device(dev);
+      err_kfree_ssb:
+	kfree(ssb);
+	return err;
+}
+
+static void __devexit b43_pcmcia_remove(struct pcmcia_device *dev)
+{
+	struct ssb_bus *ssb = dev->priv;
+
+	ssb_bus_unregister(ssb);
+	pcmcia_release_window(dev->win);
+	pcmcia_disable_device(dev);
+	kfree(ssb);
+	dev->priv = NULL;
+}
+
+static struct pcmcia_driver b43_pcmcia_driver = {
+	.owner = THIS_MODULE,
+	.drv = {
+		.name = "b43-pcmcia",
+		},
+	.id_table = b43_pcmcia_tbl,
+	.probe = b43_pcmcia_probe,
+	.remove = b43_pcmcia_remove,
+	.suspend = b43_pcmcia_suspend,
+	.resume = b43_pcmcia_resume,
+};
+
+int b43_pcmcia_init(void)
+{
+	return pcmcia_register_driver(&b43_pcmcia_driver);
+}
+
+void b43_pcmcia_exit(void)
+{
+	pcmcia_unregister_driver(&b43_pcmcia_driver);
+}

drivers/net/wireless/b43/pcmcia.h

+#ifndef B43_PCMCIA_H_
+#define B43_PCMCIA_H_
+
+#ifdef CONFIG_B43_PCMCIA
+
+int b43_pcmcia_init(void);
+void b43_pcmcia_exit(void);
+
+#else /* CONFIG_B43_PCMCIA */
+
+static inline int b43_pcmcia_init(void)
+{
+	return 0;
+}
+static inline void b43_pcmcia_exit(void)
+{
+}
+
+#endif /* CONFIG_B43_PCMCIA */
+#endif /* B43_PCMCIA_H_ */

drivers/net/wireless/b43/pio.h

+#ifndef B43_PIO_H_
+#define B43_PIO_H_
+
+#include "b43.h"
+
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+
+#define B43_PIO_TXCTL		0x00
+#define B43_PIO_TXDATA		0x02
+#define B43_PIO_TXQBUFSIZE		0x04
+#define B43_PIO_RXCTL		0x08
+#define B43_PIO_RXDATA		0x0A
+
+#define B43_PIO_TXCTL_WRITELO	(1 << 0)
+#define B43_PIO_TXCTL_WRITEHI	(1 << 1)
+#define B43_PIO_TXCTL_COMPLETE	(1 << 2)
+#define B43_PIO_TXCTL_INIT		(1 << 3)
+#define B43_PIO_TXCTL_SUSPEND	(1 << 7)
+
+#define B43_PIO_RXCTL_DATAAVAILABLE	(1 << 0)
+#define B43_PIO_RXCTL_READY		(1 << 1)
+
+/* PIO constants */
+#define B43_PIO_MAXTXDEVQPACKETS	31
+#define B43_PIO_TXQADJUST		80
+
+/* PIO tuning knobs */
+#define B43_PIO_MAXTXPACKETS	256
+
+#ifdef CONFIG_B43_PIO
+
+struct b43_pioqueue;
+struct b43_xmitstatus;
+
+struct b43_pio_txpacket {
+	struct b43_pioqueue *queue;
+	struct sk_buff *skb;
+	struct ieee80211_tx_status txstat;
+	struct list_head list;
+};
+
+#define pio_txpacket_getindex(packet) ((int)((packet) - (packet)->queue->tx_packets_cache))
+
+struct b43_pioqueue {
+	struct b43_wldev *dev;
+	u16 mmio_base;
+
+	bool tx_suspended;
+	bool tx_frozen;
+	bool need_workarounds;	/* Workarounds needed for core.rev < 3 */
+
+	/* Adjusted size of the device internal TX buffer. */
+	u16 tx_devq_size;
+	/* Used octets of the device internal TX buffer. */
+	u16 tx_devq_used;
+	/* Used packet slots in the device internal TX buffer. */
+	u8 tx_devq_packets;
+	/* Packets from the txfree list can
+	 * be taken on incoming TX requests.
+	 */
+	struct list_head txfree;
+	unsigned int nr_txfree;
+	/* Packets on the txqueue are queued,
+	 * but not completely written to the chip, yet.
+	 */
+	struct list_head txqueue;
+	/* Packets on the txrunning queue are completely
+	 * posted to the device. We are waiting for the txstatus.
+	 */
+	struct list_head txrunning;
+	/* Total number or packets sent.
+	 * (This counter can obviously wrap).
+	 */
+	unsigned int nr_tx_packets;
+	struct tasklet_struct txtask;
+	struct b43_pio_txpacket tx_packets_cache[B43_PIO_MAXTXPACKETS];
+};
+
+static inline u16 b43_pio_read(struct b43_pioqueue *queue, u16 offset)
+{
+	return b43_read16(queue->dev, queue->mmio_base + offset);
+}
+
+static inline
+    void b43_pio_write(struct b43_pioqueue *queue, u16 offset, u16 value)
+{
+	b43_write16(queue->dev, queue->mmio_base + offset, value);
+	mmiowb();
+}
+
+int b43_pio_init(struct b43_wldev *dev);
+void b43_pio_free(struct b43_wldev *dev);
+
+int b43_pio_tx(struct b43_wldev *dev,
+	       struct sk_buff *skb, struct ieee80211_tx_control *ctl);
+void b43_pio_handle_txstatus(struct b43_wldev *dev,
+			     const struct b43_txstatus *status);
+void b43_pio_get_tx_stats(struct b43_wldev *dev,
+			  struct ieee80211_tx_queue_stats *stats);
+void b43_pio_rx(struct b43_pioqueue *queue);
+
+/* Suspend TX queue in hardware. */
+void b43_pio_tx_suspend(struct b43_pioqueue *queue);
+void b43_pio_tx_resume(struct b43_pioqueue *queue);
+/* Suspend (freeze) the TX tasklet (software level). */
+void b43_pio_freeze_txqueues(struct b43_wldev *dev);
+void b43_pio_thaw_txqueues(struct b43_wldev *dev);
+
+#else /* CONFIG_B43_PIO */
+
+static inline int b43_pio_init(struct b43_wldev *dev)
+{
+	return 0;
+}
+static inline void b43_pio_free(struct b43_wldev *dev)
+{
+}
+static inline
+    int b43_pio_tx(struct b43_wldev *dev,
+		   struct sk_buff *skb, struct ieee80211_tx_control *ctl)
+{
+	return 0;
+}
+static inline
+    void b43_pio_handle_txstatus(struct b43_wldev *dev,
+				 const struct b43_txstatus *status)
+{
+}
+static inline
+    void b43_pio_get_tx_stats(struct b43_wldev *dev,
+			      struct ieee80211_tx_queue_stats *stats)
+{
+}
+static inline void b43_pio_rx(struct b43_pioqueue *queue)
+{
+}
+static inline void b43_pio_tx_suspend(struct b43_pioqueue *queue)
+{
+}
+static inline void b43_pio_tx_resume(struct b43_pioqueue *queue)
+{
+}
+static inline void b43_pio_freeze_txqueues(struct b43_wldev *dev)
+{
+}
+static inline void b43_pio_thaw_txqueues(struct b43_wldev *dev)
+{
+}
+
+#endif /* CONFIG_B43_PIO */
+#endif /* B43_PIO_H_ */

drivers/net/wireless/b43/sysfs.h

+#ifndef B43_SYSFS_H_
+#define B43_SYSFS_H_
+
+struct b43_wldev;
+
+int b43_sysfs_register(struct b43_wldev *dev);
+void b43_sysfs_unregister(struct b43_wldev *dev);
+
+#endif /* B43_SYSFS_H_ */

drivers/net/wireless/b43/tables.h

+#ifndef B43_TABLES_H_
+#define B43_TABLES_H_
+
+#define B43_TAB_ROTOR_SIZE		53
+extern const u32 b43_tab_rotor[];
+#define B43_TAB_RETARD_SIZE		53
+extern const u32 b43_tab_retard[];
+#define B43_TAB_FINEFREQA_SIZE	256
+extern const u16 b43_tab_finefreqa[];
+#define B43_TAB_FINEFREQG_SIZE	256
+extern const u16 b43_tab_finefreqg[];
+#define B43_TAB_NOISEA2_SIZE	8
+extern const u16 b43_tab_noisea2[];
+#define B43_TAB_NOISEA3_SIZE	8
+extern const u16 b43_tab_noisea3[];
+#define B43_TAB_NOISEG1_SIZE	8
+extern const u16 b43_tab_noiseg1[];
+#define B43_TAB_NOISEG2_SIZE	8
+extern const u16 b43_tab_noiseg2[];
+#define B43_TAB_NOISESCALEG_SIZE	27
+extern const u16 b43_tab_noisescaleg1[];
+extern const u16 b43_tab_noisescaleg2[];
+extern const u16 b43_tab_noisescaleg3[];
+#define B43_TAB_SIGMASQR_SIZE	53
+extern const u16 b43_tab_sigmasqr1[];
+extern const u16 b43_tab_sigmasqr2[];
+
+#endif /* B43_TABLES_H_ */