[RT2x00]: add driver for Ralink wireless hardware

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2026-05-01 15:00:59 -07:00 · 2007-09-25 17:57:13 -07:00
parent b481de9ca0
commit 95ea36275f
31 changed files with 21174 additions and 0 deletions
@@ -665,6 +665,11 @@ D: Minor updates to SCSI types, added /proc/pid/maps protection
 S: (ask for current address)
 S: USA

+N: Robin Cornelius
+E: robincornelius@users.sourceforge.net
+D: Ralink rt2x00 WLAN driver
+S: Cornwall, U.K.
+
 N: Mark Corner
 E: mcorner@umich.edu
 W: http://www.eecs.umich.edu/~mcorner/
@@ -679,6 +684,11 @@ D: Kernel module SMART utilities
 S: Santa Cruz, California
 S: USA

+N: Luis Correia
+E: lfcorreia@users.sf.net
+D: Ralink rt2x00 WLAN driver
+S: Belas, Portugal
+
 N: Alan Cox
 W: http://www.linux.org.uk/diary/
 D: Linux Networking (0.99.10->2.0.29)
@@ -833,6 +843,12 @@ S: Lancs
 S: PR4 6AX
 S: United Kingdom

+N: Ivo van Doorn
+E: IvDoorn@gmail.com
+W: http://www.mendiosus.nl
+D: Ralink rt2x00 WLAN driver
+S: Haarlem, The Netherlands
+
 N: John G Dorsey
 E: john+@cs.cmu.edu
 D: ARM Linux ports to Assabet/Neponset, Spot
@@ -3517,6 +3533,12 @@ S: Maastrichterweg 63
 S: 5554 GG Valkenswaard
 S: The Netherlands

+N: Mark Wallis
+E: mwallis@serialmonkey.com
+W: http://mark.serialmonkey.com
+D: Ralink rt2x00 WLAN driver
+S: Newcastle, Australia
+
 N: Peter Shaobo Wang
 E: pwang@mmdcorp.com
 W: http://www.mmdcorp.com/pw/linux
@@ -3651,6 +3673,15 @@ S: Alte Regensburger Str. 11a
 S: 93149 Nittenau
 S: Germany

+N: Gertjan van Wingerde
+E: gwingerde@home.nl
+D: Ralink rt2x00 WLAN driver
+D: Minix V2 file-system
+D: Misc fixes
+S: Geessinkweg 177
+S: 7544 TX Enschede
+S: The Netherlands
+
 N: Lars Wirzenius
 E: liw@iki.fi
 D: Linux System Administrator's Guide, author, former maintainer
@@ -3147,6 +3147,14 @@ M:	corey@world.std.com
 L:	linux-wireless@vger.kernel.org
 S:	Maintained

+RALINK RT2X00 WLAN DRIVER
+P:	rt2x00 project
+L:	linux-wireless@vger.kernel.org
+L:	rt2400-devel@lists.sourceforge.net
+W:	http://rt2x00.serialmonkey.com/
+S:	Maintained
+F:	drivers/net/wireless/rt2x00/
+
 RANDOM NUMBER DRIVER
 P:	Matt Mackall
 M:	mpm@selenic.com
@@ -583,5 +583,6 @@ source "drivers/net/wireless/bcm43xx/Kconfig"
 source "drivers/net/wireless/b43/Kconfig"
 source "drivers/net/wireless/b43legacy/Kconfig"
 source "drivers/net/wireless/zd1211rw/Kconfig"
+source "drivers/net/wireless/rt2x00/Kconfig"

 endmenu
@@ -53,3 +53,4 @@ obj-$(CONFIG_RTL8187)	+= rtl8187.o
 obj-$(CONFIG_ADM8211)	+= adm8211.o

 obj-$(CONFIG_IWLWIFI)	+= iwlwifi/
+obj-$(CONFIG_RT2X00)	+= rt2x00/
@@ -0,0 +1,130 @@
+config RT2X00
+	tristate "Ralink driver support"
+	depends on MAC80211 && WLAN_80211 && EXPERIMENTAL
+	---help---
+	  This will enable the experimental support for the Ralink drivers,
+	  developed in the rt2x00 project <http://rt2x00.serialmonkey.com>.
+
+	  These drivers will make use of the Devicescape ieee80211 stack.
+
+	  When building one of the individual drivers, the rt2x00 library
+	  will also be created. That library (when the driver is built as
+	  a module) will be called "rt2x00lib.ko".
+
+config RT2X00_LIB
+	tristate
+	depends on RT2X00
+
+config RT2X00_LIB_PCI
+	tristate
+	depends on RT2X00
+	select RT2X00_LIB
+
+config RT2X00_LIB_USB
+	tristate
+	depends on RT2X00
+	select RT2X00_LIB
+
+config RT2X00_LIB_FIRMWARE
+	boolean
+	depends on RT2X00_LIB
+	select CRC_ITU_T
+	select FW_LOADER
+
+config RT2X00_LIB_RFKILL
+	boolean
+	depends on RT2X00_LIB
+	select RFKILL
+	select INPUT_POLLDEV
+
+config RT2400PCI
+	tristate "Ralink rt2400 pci/pcmcia support"
+	depends on RT2X00 && PCI
+	select RT2X00_LIB_PCI
+	select EEPROM_93CX6
+	---help---
+	  This is an experimental driver for the Ralink rt2400 wireless chip.
+
+	  When compiled as a module, this driver will be called "rt2400pci.ko".
+
+config RT2400PCI_RFKILL
+	bool "RT2400 rfkill support"
+	depends on RT2400PCI
+	select RT2X00_LIB_RFKILL
+	---help---
+	  This adds support for integrated rt2400 devices that feature a
+	  hardware button to control the radio state.
+	  This feature depends on the RF switch subsystem rfkill.
+
+config RT2500PCI
+	tristate "Ralink rt2500 pci/pcmcia support"
+	depends on RT2X00 && PCI
+	select RT2X00_LIB_PCI
+	select EEPROM_93CX6
+	---help---
+	  This is an experimental driver for the Ralink rt2500 wireless chip.
+
+	  When compiled as a module, this driver will be called "rt2500pci.ko".
+
+config RT2500PCI_RFKILL
+	bool "RT2500 rfkill support"
+	depends on RT2500PCI
+	select RT2X00_LIB_RFKILL
+	---help---
+	  This adds support for integrated rt2500 devices that feature a
+	  hardware button to control the radio state.
+	  This feature depends on the RF switch subsystem rfkill.
+
+config RT61PCI
+	tristate "Ralink rt61 pci/pcmcia support"
+	depends on RT2X00 && PCI
+	select RT2X00_LIB_PCI
+	select RT2X00_LIB_FIRMWARE
+	select EEPROM_93CX6
+	---help---
+	  This is an experimental driver for the Ralink rt61 wireless chip.
+
+	  When compiled as a module, this driver will be called "rt61pci.ko".
+
+config RT61PCI_RFKILL
+	bool "RT61 rfkill support"
+	depends on RT61PCI
+	select RT2X00_LIB_RFKILL
+	---help---
+	  This adds support for integrated rt61 devices that feature a
+	  hardware button to control the radio state.
+	  This feature depends on the RF switch subsystem rfkill.
+
+config RT2500USB
+	tristate "Ralink rt2500 usb support"
+	depends on RT2X00 && USB
+	select RT2X00_LIB_USB
+	---help---
+	  This is an experimental driver for the Ralink rt2500 wireless chip.
+
+	  When compiled as a module, this driver will be called "rt2500usb.ko".
+
+config RT73USB
+	tristate "Ralink rt73 usb support"
+	depends on RT2X00 && USB
+	select RT2X00_LIB_USB
+	select RT2X00_LIB_FIRMWARE
+	---help---
+	  This is an experimental driver for the Ralink rt73 wireless chip.
+
+	  When compiled as a module, this driver will be called "rt73usb.ko".
+
+config RT2X00_LIB_DEBUGFS
+	bool "Ralink debugfs support"
+	depends on RT2X00_LIB && MAC80211_DEBUGFS
+	---help---
+	  Enable creation of debugfs files for the rt2x00 drivers.
+	  These debugfs files support both reading and writing of the
+	  most important register types of the rt2x00 devices.
+
+config RT2X00_DEBUG
+	bool "Ralink debug output"
+	depends on RT2X00_LIB
+	---help---
+	  Enable debugging output for all rt2x00 modules
+
@@ -0,0 +1,22 @@
+rt2x00lib-objs := rt2x00dev.o rt2x00mac.o rt2x00config.o
+
+ifeq ($(CONFIG_RT2X00_LIB_DEBUGFS),y)
+	rt2x00lib-objs += rt2x00debug.o
+endif
+
+ifeq ($(CONFIG_RT2X00_LIB_RFKILL),y)
+	rt2x00lib-objs += rt2x00rfkill.o
+endif
+
+ifeq ($(CONFIG_RT2X00_LIB_FIRMWARE),y)
+	rt2x00lib-objs += rt2x00firmware.o
+endif
+
+obj-$(CONFIG_RT2X00_LIB)	+= rt2x00lib.o
+obj-$(CONFIG_RT2X00_LIB_PCI)	+= rt2x00pci.o
+obj-$(CONFIG_RT2X00_LIB_USB)	+= rt2x00usb.o
+obj-$(CONFIG_RT2400PCI)		+= rt2400pci.o
+obj-$(CONFIG_RT2500PCI)		+= rt2500pci.o
+obj-$(CONFIG_RT61PCI)		+= rt61pci.o
+obj-$(CONFIG_RT2500USB)		+= rt2500usb.o
+obj-$(CONFIG_RT73USB)		+= rt73usb.o
@@ -0,0 +1,165 @@
+/*
+	Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+	<http://rt2x00.serialmonkey.com>
+
+	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; if not, write to the
+	Free Software Foundation, Inc.,
+	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+	Module: rt2x00lib
+	Abstract: rt2x00 generic configuration routines.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2x00lib"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "rt2x00.h"
+#include "rt2x00lib.h"
+
+void rt2x00lib_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *mac)
+{
+	if (mac)
+		rt2x00dev->ops->lib->config_mac_addr(rt2x00dev, mac);
+}
+
+void rt2x00lib_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
+{
+	if (bssid)
+		rt2x00dev->ops->lib->config_bssid(rt2x00dev, bssid);
+}
+
+void rt2x00lib_config_packet_filter(struct rt2x00_dev *rt2x00dev, int filter)
+{
+	/*
+	 * Only configure the device when something has changed,
+	 * or if we are in RESUME state in which case all configuration
+	 * will be forced upon the device.
+	 */
+	if (!test_bit(INTERFACE_RESUME, &rt2x00dev->flags) &&
+	    !test_bit(PACKET_FILTER_PENDING, &rt2x00dev->flags))
+		return;
+
+	/*
+	 * Write configuration to device and clear the update flag.
+	 */
+	rt2x00dev->ops->lib->config_packet_filter(rt2x00dev, filter);
+	__clear_bit(PACKET_FILTER_PENDING, &rt2x00dev->flags);
+}
+
+void rt2x00lib_config_type(struct rt2x00_dev *rt2x00dev, int type)
+{
+	struct interface *intf = &rt2x00dev->interface;
+
+	/*
+	 * Fallback when a invalid interface is attempted to
+	 * be configured. If a monitor interface is present,
+	 * we are going configure that, otherwise exit.
+	 */
+	if (type == INVALID_INTERFACE) {
+		if (is_monitor_present(intf))
+			type = IEEE80211_IF_TYPE_MNTR;
+		else
+			return;
+	}
+
+	/*
+	 * Only configure the device when something has changed,
+	 * or if we are in RESUME state in which case all configuration
+	 * will be forced upon the device.
+	 */
+	if (!test_bit(INTERFACE_RESUME, &rt2x00dev->flags) &&
+	    (!(is_interface_present(intf) ^
+	       test_bit(INTERFACE_ENABLED, &rt2x00dev->flags)) &&
+	     !(is_monitor_present(intf) ^
+	       test_bit(INTERFACE_ENABLED_MONITOR, &rt2x00dev->flags))))
+		return;
+
+	/*
+	 * Configure device.
+	 */
+	rt2x00dev->ops->lib->config_type(rt2x00dev, type);
+
+	/*
+	 * Update the configuration flags.
+	 */
+	if (type != IEEE80211_IF_TYPE_MNTR) {
+		if (is_interface_present(intf))
+			__set_bit(INTERFACE_ENABLED, &rt2x00dev->flags);
+		else
+			__clear_bit(INTERFACE_ENABLED, &rt2x00dev->flags);
+	} else {
+		if (is_monitor_present(intf))
+			__set_bit(INTERFACE_ENABLED_MONITOR, &rt2x00dev->flags);
+		else
+			__clear_bit(INTERFACE_ENABLED_MONITOR,
+				    &rt2x00dev->flags);
+	}
+}
+
+void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, struct ieee80211_conf *conf)
+{
+	int flags = 0;
+
+	/*
+	 * If we are in RESUME state we should
+	 * force all configuration options.
+	 */
+	if (test_bit(INTERFACE_RESUME, &rt2x00dev->flags)) {
+		flags = CONFIG_UPDATE_ALL;
+		goto config;
+	}
+
+	/*
+	 * Check which configuration options have been
+	 * updated and should be send to the device.
+	 */
+	if (rt2x00dev->rx_status.phymode != conf->phymode)
+		flags |= CONFIG_UPDATE_PHYMODE;
+	if (rt2x00dev->rx_status.channel != conf->channel)
+		flags |= CONFIG_UPDATE_CHANNEL;
+	if (rt2x00dev->tx_power != conf->power_level)
+		flags |= CONFIG_UPDATE_TXPOWER;
+	if (rt2x00dev->rx_status.antenna == conf->antenna_sel_rx)
+		flags |= CONFIG_UPDATE_ANTENNA;
+
+	/*
+	 * The following configuration options are never
+	 * stored anywhere and will always be updated.
+	 */
+	flags |= CONFIG_UPDATE_SLOT_TIME;
+	flags |= CONFIG_UPDATE_BEACON_INT;
+
+config:
+	rt2x00dev->ops->lib->config(rt2x00dev, flags, conf);
+
+	/*
+	 * Some configuration changes affect the link quality
+	 * which means we need to reset the link tuner.
+	 */
+	if (flags & (CONFIG_UPDATE_CHANNEL | CONFIG_UPDATE_ANTENNA))
+		rt2x00lib_reset_link_tuner(rt2x00dev);
+
+	rt2x00dev->rx_status.phymode = conf->phymode;
+	rt2x00dev->rx_status.freq = conf->freq;
+	rt2x00dev->rx_status.channel = conf->channel;
+	rt2x00dev->tx_power = conf->power_level;
+	rt2x00dev->rx_status.antenna = conf->antenna_sel_rx;
+}
@@ -0,0 +1,331 @@
+/*
+	Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+	<http://rt2x00.serialmonkey.com>
+
+	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; if not, write to the
+	Free Software Foundation, Inc.,
+	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+	Module: rt2x00lib
+	Abstract: rt2x00 debugfs specific routines.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2x00lib"
+
+#include <linux/debugfs.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/uaccess.h>
+
+#include "rt2x00.h"
+#include "rt2x00lib.h"
+
+#define PRINT_LINE_LEN_MAX 32
+
+struct rt2x00debug_intf {
+	/*
+	 * Pointer to driver structure where
+	 * this debugfs entry belongs to.
+	 */
+	struct rt2x00_dev *rt2x00dev;
+
+	/*
+	 * Reference to the rt2x00debug structure
+	 * which can be used to communicate with
+	 * the registers.
+	 */
+	const struct rt2x00debug *debug;
+
+	/*
+	 * Debugfs entries for:
+	 * - driver folder
+	 * - driver file
+	 * - chipset file
+	 * - register offset/value files
+	 * - eeprom offset/value files
+	 * - bbp offset/value files
+	 * - rf offset/value files
+	 */
+	struct dentry *driver_folder;
+	struct dentry *driver_entry;
+	struct dentry *chipset_entry;
+	struct dentry *csr_off_entry;
+	struct dentry *csr_val_entry;
+	struct dentry *eeprom_off_entry;
+	struct dentry *eeprom_val_entry;
+	struct dentry *bbp_off_entry;
+	struct dentry *bbp_val_entry;
+	struct dentry *rf_off_entry;
+	struct dentry *rf_val_entry;
+
+	/*
+	 * Driver and chipset files will use a data buffer
+	 * that has been created in advance. This will simplify
+	 * the code since we can use the debugfs functions.
+	 */
+	struct debugfs_blob_wrapper driver_blob;
+	struct debugfs_blob_wrapper chipset_blob;
+
+	/*
+	 * Requested offset for each register type.
+	 */
+	unsigned int offset_csr;
+	unsigned int offset_eeprom;
+	unsigned int offset_bbp;
+	unsigned int offset_rf;
+};
+
+static int rt2x00debug_file_open(struct inode *inode, struct file *file)
+{
+	struct rt2x00debug_intf *intf = inode->i_private;
+
+	file->private_data = inode->i_private;
+
+	if (!try_module_get(intf->debug->owner))
+		return -EBUSY;
+
+	return 0;
+}
+
+static int rt2x00debug_file_release(struct inode *inode, struct file *file)
+{
+	struct rt2x00debug_intf *intf = file->private_data;
+
+	module_put(intf->debug->owner);
+
+	return 0;
+}
+
+#define RT2X00DEBUGFS_OPS_READ(__name, __format, __type)	\
+static ssize_t rt2x00debug_read_##__name(struct file *file,	\
+					 char __user *buf,	\
+					 size_t length,		\
+					 loff_t *offset)	\
+{								\
+	struct rt2x00debug_intf *intf =	file->private_data;	\
+	const struct rt2x00debug *debug = intf->debug;		\
+	char line[16];						\
+	size_t size;						\
+	__type value;						\
+								\
+	if (*offset)						\
+		return 0;					\
+								\
+	if (intf->offset_##__name >= debug->__name.word_count)	\
+		return -EINVAL;					\
+								\
+	debug->__name.read(intf->rt2x00dev,			\
+			   intf->offset_##__name, &value);	\
+								\
+	size = sprintf(line, __format, value);			\
+								\
+	if (copy_to_user(buf, line, size))			\
+		return -EFAULT;					\
+								\
+	*offset += size;					\
+	return size;						\
+}
+
+#define RT2X00DEBUGFS_OPS_WRITE(__name, __type)			\
+static ssize_t rt2x00debug_write_##__name(struct file *file,	\
+					  const char __user *buf,\
+					  size_t length,	\
+					  loff_t *offset)	\
+{								\
+	struct rt2x00debug_intf *intf =	file->private_data;	\
+	const struct rt2x00debug *debug = intf->debug;		\
+	char line[16];						\
+	size_t size;						\
+	__type value;						\
+								\
+	if (*offset)						\
+		return 0;					\
+								\
+	if (!capable(CAP_NET_ADMIN))				\
+		return -EPERM;					\
+								\
+	if (intf->offset_##__name >= debug->__name.word_count)	\
+		return -EINVAL;					\
+								\
+	if (copy_from_user(line, buf, length))			\
+		return -EFAULT;					\
+								\
+	size = strlen(line);					\
+	value = simple_strtoul(line, NULL, 0);			\
+								\
+	debug->__name.write(intf->rt2x00dev,			\
+			    intf->offset_##__name, value);	\
+								\
+	*offset += size;					\
+	return size;						\
+}
+
+#define RT2X00DEBUGFS_OPS(__name, __format, __type)		\
+RT2X00DEBUGFS_OPS_READ(__name, __format, __type);		\
+RT2X00DEBUGFS_OPS_WRITE(__name, __type);			\
+								\
+static const struct file_operations rt2x00debug_fop_##__name = {\
+	.owner		= THIS_MODULE,				\
+	.read		= rt2x00debug_read_##__name,		\
+	.write		= rt2x00debug_write_##__name,		\
+	.open		= rt2x00debug_file_open,		\
+	.release	= rt2x00debug_file_release,		\
+};
+
+RT2X00DEBUGFS_OPS(csr, "0x%.8x\n", u32);
+RT2X00DEBUGFS_OPS(eeprom, "0x%.4x\n", u16);
+RT2X00DEBUGFS_OPS(bbp, "0x%.2x\n", u8);
+RT2X00DEBUGFS_OPS(rf, "0x%.8x\n", u32);
+
+static struct dentry *rt2x00debug_create_file_driver(const char *name,
+						     struct rt2x00debug_intf
+						     *intf,
+						     struct debugfs_blob_wrapper
+						     *blob)
+{
+	char *data;
+
+	data = kzalloc(3 * PRINT_LINE_LEN_MAX, GFP_KERNEL);
+	if (!data)
+		return NULL;
+
+	blob->data = data;
+	data += sprintf(data, "driver: %s\n", intf->rt2x00dev->ops->name);
+	data += sprintf(data, "version: %s\n", DRV_VERSION);
+	data += sprintf(data, "compiled: %s %s\n", __DATE__, __TIME__);
+	blob->size = strlen(blob->data);
+
+	return debugfs_create_blob(name, S_IRUGO, intf->driver_folder, blob);
+}
+
+static struct dentry *rt2x00debug_create_file_chipset(const char *name,
+						      struct rt2x00debug_intf
+						      *intf,
+						      struct
+						      debugfs_blob_wrapper
+						      *blob)
+{
+	const struct rt2x00debug *debug = intf->debug;
+	char *data;
+
+	data = kzalloc(4 * PRINT_LINE_LEN_MAX, GFP_KERNEL);
+	if (!data)
+		return NULL;
+
+	blob->data = data;
+	data += sprintf(data, "csr length: %d\n", debug->csr.word_count);
+	data += sprintf(data, "eeprom length: %d\n", debug->eeprom.word_count);
+	data += sprintf(data, "bbp length: %d\n", debug->bbp.word_count);
+	data += sprintf(data, "rf length: %d\n", debug->rf.word_count);
+	blob->size = strlen(blob->data);
+
+	return debugfs_create_blob(name, S_IRUGO, intf->driver_folder, blob);
+}
+
+void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
+{
+	const struct rt2x00debug *debug = rt2x00dev->ops->debugfs;
+	struct rt2x00debug_intf *intf;
+
+	intf = kzalloc(sizeof(struct rt2x00debug_intf), GFP_KERNEL);
+	if (!intf) {
+		ERROR(rt2x00dev, "Failed to allocate debug handler.\n");
+		return;
+	}
+
+	intf->debug = debug;
+	intf->rt2x00dev = rt2x00dev;
+	rt2x00dev->debugfs_intf = intf;
+
+	intf->driver_folder =
+	    debugfs_create_dir(intf->rt2x00dev->ops->name,
+			       rt2x00dev->hw->wiphy->debugfsdir);
+	if (IS_ERR(intf->driver_folder))
+		goto exit;
+
+	intf->driver_entry =
+	    rt2x00debug_create_file_driver("driver", intf, &intf->driver_blob);
+	if (IS_ERR(intf->driver_entry))
+		goto exit;
+
+	intf->chipset_entry =
+	    rt2x00debug_create_file_chipset("chipset",
+					    intf, &intf->chipset_blob);
+	if (IS_ERR(intf->chipset_entry))
+		goto exit;
+
+#define RT2X00DEBUGFS_CREATE_ENTRY(__intf, __name)		\
+({								\
+	(__intf)->__name##_off_entry =				\
+	    debugfs_create_u32(__stringify(__name) "_offset",	\
+			       S_IRUGO | S_IWUSR,		\
+			       (__intf)->driver_folder,		\
+			       &(__intf)->offset_##__name);	\
+	if (IS_ERR((__intf)->__name##_off_entry))		\
+		goto exit;					\
+								\
+	(__intf)->__name##_val_entry =				\
+	    debugfs_create_file(__stringify(__name) "_value",	\
+				S_IRUGO | S_IWUSR,		\
+				(__intf)->driver_folder,	\
+				(__intf), &rt2x00debug_fop_##__name);\
+	if (IS_ERR((__intf)->__name##_val_entry))		\
+		goto exit;					\
+})
+
+	RT2X00DEBUGFS_CREATE_ENTRY(intf, csr);
+	RT2X00DEBUGFS_CREATE_ENTRY(intf, eeprom);
+	RT2X00DEBUGFS_CREATE_ENTRY(intf, bbp);
+	RT2X00DEBUGFS_CREATE_ENTRY(intf, rf);
+
+#undef RT2X00DEBUGFS_CREATE_ENTRY
+
+	return;
+
+exit:
+	rt2x00debug_deregister(rt2x00dev);
+	ERROR(rt2x00dev, "Failed to register debug handler.\n");
+
+	return;
+}
+
+void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev)
+{
+	const struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf;
+
+	if (unlikely(!intf))
+		return;
+
+	debugfs_remove(intf->rf_val_entry);
+	debugfs_remove(intf->rf_off_entry);
+	debugfs_remove(intf->bbp_val_entry);
+	debugfs_remove(intf->bbp_off_entry);
+	debugfs_remove(intf->eeprom_val_entry);
+	debugfs_remove(intf->eeprom_off_entry);
+	debugfs_remove(intf->csr_val_entry);
+	debugfs_remove(intf->csr_off_entry);
+	debugfs_remove(intf->chipset_entry);
+	debugfs_remove(intf->driver_entry);
+	debugfs_remove(intf->driver_folder);
+	kfree(intf->chipset_blob.data);
+	kfree(intf->driver_blob.data);
+	kfree(intf);
+
+	rt2x00dev->debugfs_intf = NULL;
+}
@@ -0,0 +1,57 @@
+/*
+	Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+	<http://rt2x00.serialmonkey.com>
+
+	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; if not, write to the
+	Free Software Foundation, Inc.,
+	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+	Module: rt2x00debug
+	Abstract: Data structures for the rt2x00debug.
+ */
+
+#ifndef RT2X00DEBUG_H
+#define RT2X00DEBUG_H
+
+struct rt2x00_dev;
+
+#define RT2X00DEBUGFS_REGISTER_ENTRY(__name, __type)		\
+struct reg##__name {						\
+	void (*read)(const struct rt2x00_dev *rt2x00dev,	\
+		     const unsigned int word, __type *data);	\
+	void (*write)(const struct rt2x00_dev *rt2x00dev,	\
+		      const unsigned int word, __type data);	\
+								\
+	unsigned int word_size;					\
+	unsigned int word_count;				\
+} __name
+
+struct rt2x00debug {
+	/*
+	 * Reference to the modules structure.
+	 */
+	struct module *owner;
+
+	/*
+	 * Register access entries.
+	 */
+	RT2X00DEBUGFS_REGISTER_ENTRY(csr, u32);
+	RT2X00DEBUGFS_REGISTER_ENTRY(eeprom, u16);
+	RT2X00DEBUGFS_REGISTER_ENTRY(bbp, u8);
+	RT2X00DEBUGFS_REGISTER_ENTRY(rf, u32);
+};
+
+#endif /* RT2X00DEBUG_H */
@@ -0,0 +1,124 @@
+/*
+	Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+	<http://rt2x00.serialmonkey.com>
+
+	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; if not, write to the
+	Free Software Foundation, Inc.,
+	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+	Module: rt2x00lib
+	Abstract: rt2x00 firmware loading routines.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2x00lib"
+
+#include <linux/crc-itu-t.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "rt2x00.h"
+#include "rt2x00lib.h"
+
+static int rt2x00lib_request_firmware(struct rt2x00_dev *rt2x00dev)
+{
+	struct device *device = wiphy_dev(rt2x00dev->hw->wiphy);
+	const struct firmware *fw;
+	char *fw_name;
+	int retval;
+	u16 crc;
+	u16 tmp;
+
+	/*
+	 * Read correct firmware from harddisk.
+	 */
+	fw_name = rt2x00dev->ops->lib->get_firmware_name(rt2x00dev);
+	if (!fw_name) {
+		ERROR(rt2x00dev,
+		      "Invalid firmware filename.\n"
+		      "Please file bug report to %s.\n", DRV_PROJECT);
+		return -EINVAL;
+	}
+
+	INFO(rt2x00dev, "Loading firmware file '%s'.\n", fw_name);
+
+	retval = request_firmware(&fw, fw_name, device);
+	if (retval) {
+		ERROR(rt2x00dev, "Failed to request Firmware.\n");
+		return retval;
+	}
+
+	if (!fw || !fw->size || !fw->data) {
+		ERROR(rt2x00dev, "Failed to read Firmware.\n");
+		return -ENOENT;
+	}
+
+	/*
+	 * Validate the firmware using 16 bit CRC.
+	 * The last 2 bytes of the firmware are the CRC
+	 * so substract those 2 bytes from the CRC checksum,
+	 * and set those 2 bytes to 0 when calculating CRC.
+	 */
+	tmp = 0;
+	crc = crc_itu_t(0, fw->data, fw->size - 2);
+	crc = crc_itu_t(crc, (u8 *)&tmp, 2);
+
+	if (crc != (fw->data[fw->size - 2] << 8 | fw->data[fw->size - 1])) {
+		ERROR(rt2x00dev, "Firmware CRC error.\n");
+		retval = -ENOENT;
+		goto exit;
+	}
+
+	INFO(rt2x00dev, "Firmware detected - version: %d.%d.\n",
+	     fw->data[fw->size - 4], fw->data[fw->size - 3]);
+
+	rt2x00dev->fw = fw;
+
+	return 0;
+
+exit:
+	release_firmware(fw);
+
+	return retval;
+}
+
+int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev)
+{
+	int retval;
+
+	if (!rt2x00dev->fw) {
+		retval = rt2x00lib_request_firmware(rt2x00dev);
+		if (retval)
+			return retval;
+	}
+
+	/*
+	 * Send firmware to the device.
+	 */
+	retval = rt2x00dev->ops->lib->load_firmware(rt2x00dev,
+						    rt2x00dev->fw->data,
+						    rt2x00dev->fw->size);
+	return retval;
+}
+
+void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev)
+{
+	release_firmware(rt2x00dev->fw);
+	rt2x00dev->fw = NULL;
+}
+
@@ -0,0 +1,125 @@
+/*
+	Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+	<http://rt2x00.serialmonkey.com>
+
+	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; if not, write to the
+	Free Software Foundation, Inc.,
+	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+	Module: rt2x00lib
+	Abstract: Data structures and definitions for the rt2x00lib module.
+ */
+
+#ifndef RT2X00LIB_H
+#define RT2X00LIB_H
+
+/*
+ * Interval defines
+ */
+#define LINK_TUNE_INTERVAL	( round_jiffies(HZ) )
+#define RFKILL_POLL_INTERVAL	( HZ / 4 )
+
+/*
+ * Radio control handlers.
+ */
+int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_toggle_rx(struct rt2x00_dev *rt2x00dev, int enable);
+void rt2x00lib_reset_link_tuner(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * Initialization handlers.
+ */
+int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * Configuration handlers.
+ */
+void rt2x00lib_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *mac);
+void rt2x00lib_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid);
+void rt2x00lib_config_packet_filter(struct rt2x00_dev *rt2x00dev, int filter);
+void rt2x00lib_config_type(struct rt2x00_dev *rt2x00dev, int type);
+void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, struct ieee80211_conf *conf);
+
+/*
+ * Firmware handlers.
+ */
+#ifdef CONFIG_RT2X00_LIB_FIRMWARE
+int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev);
+#else
+static inline int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev)
+{
+	return 0;
+}
+static inline void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev)
+{
+}
+#endif /* CONFIG_RT2X00_LIB_FIRMWARE */
+
+/*
+ * Debugfs handlers.
+ */
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+void rt2x00debug_register(struct rt2x00_dev *rt2x00dev);
+void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev);
+#else
+static inline void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static inline void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev)
+{
+}
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+
+/*
+ * RFkill handlers.
+ */
+#ifdef CONFIG_RT2X00_LIB_RFKILL
+int rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev);
+void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev);
+int rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev);
+void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev);
+#else
+static inline int rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
+{
+	/*
+	 * Force enable this flag, this will assure that
+	 * devices with a hardware button but without rfkill support
+	 * can still use their hardware.
+	 */
+	__set_bit(DEVICE_ENABLED_RADIO_HW, &rt2x00dev->flags);
+
+	return 0;
+}
+
+static inline void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static inline int rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev)
+{
+	return 0;
+}
+
+static inline void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev)
+{
+}
+#endif /* CONFIG_RT2X00_LIB_RFKILL */
+
+#endif /* RT2X00LIB_H */
@@ -0,0 +1,459 @@
+/*
+	Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+	<http://rt2x00.serialmonkey.com>
+
+	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; if not, write to the
+	Free Software Foundation, Inc.,
+	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+	Module: rt2x00mac
+	Abstract: rt2x00 generic mac80211 routines.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2x00lib"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "rt2x00.h"
+#include "rt2x00lib.h"
+
+static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev,
+				struct data_ring *ring,
+				struct sk_buff *frag_skb,
+				struct ieee80211_tx_control *control)
+{
+	struct sk_buff *skb;
+	int size;
+
+	if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
+		size = sizeof(struct ieee80211_cts);
+	else
+		size = sizeof(struct ieee80211_rts);
+
+	skb = dev_alloc_skb(size + rt2x00dev->hw->extra_tx_headroom);
+	if (!skb) {
+		WARNING(rt2x00dev, "Failed to create RTS/CTS frame.\n");
+		return NETDEV_TX_BUSY;
+	}
+
+	skb_reserve(skb, rt2x00dev->hw->extra_tx_headroom);
+	skb_put(skb, size);
+
+	if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
+		ieee80211_ctstoself_get(rt2x00dev->hw, rt2x00dev->interface.id,
+					frag_skb->data, frag_skb->len, control,
+					(struct ieee80211_cts *)(skb->data));
+	else
+		ieee80211_rts_get(rt2x00dev->hw, rt2x00dev->interface.id,
+				  frag_skb->data, frag_skb->len, control,
+				  (struct ieee80211_rts *)(skb->data));
+
+	if (rt2x00dev->ops->lib->write_tx_data(rt2x00dev, ring, skb, control)) {
+		WARNING(rt2x00dev, "Failed to send RTS/CTS frame.\n");
+		return NETDEV_TX_BUSY;
+	}
+
+	return NETDEV_TX_OK;
+}
+
+int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
+		 struct ieee80211_tx_control *control)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data;
+	struct data_ring *ring;
+	u16 frame_control;
+
+	/*
+	 * Determine which ring to put packet on.
+	 */
+	ring = rt2x00lib_get_ring(rt2x00dev, control->queue);
+	if (unlikely(!ring)) {
+		ERROR(rt2x00dev,
+		      "Attempt to send packet over invalid queue %d.\n"
+		      "Please file bug report to %s.\n",
+		      control->queue, DRV_PROJECT);
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	/*
+	 * If CTS/RTS is required. and this frame is not CTS or RTS,
+	 * create and queue that frame first. But make sure we have
+	 * at least enough entries available to send this CTS/RTS
+	 * frame as well as the data frame.
+	 */
+	frame_control = le16_to_cpu(ieee80211hdr->frame_control);
+	if (!is_rts_frame(frame_control) && !is_cts_frame(frame_control) &&
+	    (control->flags & (IEEE80211_TXCTL_USE_RTS_CTS |
+			       IEEE80211_TXCTL_USE_CTS_PROTECT))) {
+		if (rt2x00_ring_free(ring) <= 1)
+			return NETDEV_TX_BUSY;
+
+		if (rt2x00mac_tx_rts_cts(rt2x00dev, ring, skb, control))
+			return NETDEV_TX_BUSY;
+	}
+
+	if (rt2x00dev->ops->lib->write_tx_data(rt2x00dev, ring, skb, control))
+		return NETDEV_TX_BUSY;
+
+	if (rt2x00dev->ops->lib->kick_tx_queue)
+		rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, control->queue);
+
+	return NETDEV_TX_OK;
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_tx);
+
+int rt2x00mac_start(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	int status;
+
+	if (test_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
+		return 0;
+
+	/*
+	 * If this is the first interface which is added,
+	 * we should load the firmware now.
+	 */
+	if (test_bit(REQUIRE_FIRMWARE, &rt2x00dev->flags)) {
+		status = rt2x00lib_load_firmware(rt2x00dev);
+		if (status)
+			return status;
+	}
+
+	/*
+	 * Initialize the device.
+	 */
+	status = rt2x00lib_initialize(rt2x00dev);
+	if (status)
+		return status;
+
+	/*
+	 * Enable radio.
+	 */
+	status = rt2x00lib_enable_radio(rt2x00dev);
+	if (status) {
+		rt2x00lib_uninitialize(rt2x00dev);
+		return status;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_start);
+
+void rt2x00mac_stop(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	/*
+	 * Perhaps we can add something smarter here,
+	 * but for now just disabling the radio should do.
+	 */
+	rt2x00lib_disable_radio(rt2x00dev);
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_stop);
+
+int rt2x00mac_add_interface(struct ieee80211_hw *hw,
+			    struct ieee80211_if_init_conf *conf)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	struct interface *intf = &rt2x00dev->interface;
+	int retval;
+
+	/*
+	 * We only support 1 non-monitor interface.
+	 */
+	if (conf->type != IEEE80211_IF_TYPE_MNTR && is_interface_present(intf))
+		return -ENOBUFS;
+
+	/*
+	 * HACK: Placeholder until start/stop handler has been
+	 * added to the mac80211 callback functions structure.
+	 */
+	retval = rt2x00mac_start(hw);
+	if (retval)
+		return retval;
+
+	/*
+	 * We support muliple monitor mode interfaces.
+	 * All we need to do is increase the monitor_count.
+	 */
+	if (conf->type == IEEE80211_IF_TYPE_MNTR) {
+		intf->monitor_count++;
+	} else {
+		intf->id = conf->if_id;
+		intf->type = conf->type;
+		if (conf->type == IEEE80211_IF_TYPE_AP)
+			memcpy(&intf->bssid, conf->mac_addr, ETH_ALEN);
+		memcpy(&intf->mac, conf->mac_addr, ETH_ALEN);
+		intf->filter = 0;
+	}
+
+	/*
+	 * Configure interface.
+	 * The MAC adddress must be configured after the device
+	 * has been initialized. Else the device can reset the
+	 * MAC registers.
+	 */
+	rt2x00lib_config_mac_addr(rt2x00dev, intf->mac);
+	rt2x00lib_config_type(rt2x00dev, conf->type);
+	rt2x00lib_config_packet_filter(rt2x00dev, intf->filter);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_add_interface);
+
+void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
+				struct ieee80211_if_init_conf *conf)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	struct interface *intf = &rt2x00dev->interface;
+
+	/*
+	 * We only support 1 non-monitor interface.
+	 */
+	if (conf->type != IEEE80211_IF_TYPE_MNTR && !is_interface_present(intf))
+		return;
+
+	/*
+	 * When removing an monitor interface, decrease monitor_count.
+	 * For non-monitor interfaces, all interface data needs to be reset.
+	 */
+	if (conf->type == IEEE80211_IF_TYPE_MNTR) {
+		intf->monitor_count--;
+	} else if (intf->type == conf->type) {
+		intf->id = 0;
+		intf->type = INVALID_INTERFACE;
+		memset(&intf->bssid, 0x00, ETH_ALEN);
+		memset(&intf->mac, 0x00, ETH_ALEN);
+		intf->filter = 0;
+	}
+
+	/*
+	 * Make sure the bssid and mac address registers
+	 * are cleared to prevent false ACKing of frames.
+	 */
+	rt2x00lib_config_mac_addr(rt2x00dev, intf->mac);
+	rt2x00lib_config_bssid(rt2x00dev, intf->bssid);
+	rt2x00lib_config_type(rt2x00dev, intf->type);
+
+	/*
+	 * HACK: Placeholder untill start/stop handler has been
+	 * added to the mac80211 callback functions structure.
+	 */
+	rt2x00mac_stop(hw);
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_remove_interface);
+
+int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	/*
+	 * If the device is not initialized we shouldn't accept
+	 * any configuration changes. Mac80211 might be calling
+	 * this function while we are trying to remove the device
+	 * or perhaps suspending it.
+	 */
+	if (!test_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
+		return 0;
+
+	/*
+	 * Check if we need to disable the radio,
+	 * if this is not the case, at least the RX must be disabled.
+	 */
+	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags)) {
+		if (!conf->radio_enabled)
+			rt2x00lib_disable_radio(rt2x00dev);
+		else
+			rt2x00lib_toggle_rx(rt2x00dev, 0);
+	}
+
+	rt2x00lib_config(rt2x00dev, conf);
+
+	/*
+	 * If promisc mode cannot be configured in irq context,
+	 * then it is now the time to configure it.
+	 */
+	if (test_bit(PACKET_FILTER_SCHEDULED, &rt2x00dev->flags))
+		rt2x00lib_config_packet_filter(rt2x00dev,
+					       rt2x00dev->interface.filter);
+
+	/*
+	 * Reenable RX only if the radio should be on.
+	 */
+	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+		rt2x00lib_toggle_rx(rt2x00dev, 1);
+	else if (conf->radio_enabled)
+		return rt2x00lib_enable_radio(rt2x00dev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_config);
+
+int rt2x00mac_config_interface(struct ieee80211_hw *hw, int if_id,
+			       struct ieee80211_if_conf *conf)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	struct interface *intf = &rt2x00dev->interface;
+	int status;
+
+	/*
+	 * If the device is not initialized we shouldn't accept
+	 * any configuration changes. Mac80211 might be calling
+	 * this function while we are trying to remove the device
+	 * or perhaps suspending it.
+	 */
+	if (!test_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
+		return 0;
+
+	/*
+	 * Monitor mode does not need configuring.
+	 * If the given type does not match the configured type,
+	 * there has been a problem.
+	 */
+	if (conf->type == IEEE80211_IF_TYPE_MNTR)
+		return 0;
+	else if (conf->type != intf->type)
+		return -EINVAL;
+
+	/*
+	 * If the interface does not work in master mode,
+	 * then the bssid value in the interface structure
+	 * should now be set.
+	 */
+	if (conf->type != IEEE80211_IF_TYPE_AP)
+		memcpy(&intf->bssid, conf->bssid, ETH_ALEN);
+	rt2x00lib_config_bssid(rt2x00dev, intf->bssid);
+
+	/*
+	 * We only need to initialize the beacon when master mode is enabled.
+	 */
+	if (conf->type != IEEE80211_IF_TYPE_AP || !conf->beacon)
+		return 0;
+
+	status = rt2x00dev->ops->hw->beacon_update(rt2x00dev->hw,
+						   conf->beacon,
+						   conf->beacon_control);
+	if (status)
+		dev_kfree_skb(conf->beacon);
+
+	return status;
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_config_interface);
+
+void rt2x00mac_set_multicast_list(struct ieee80211_hw *hw,
+				  unsigned short flags, int mc_count)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	/*
+	 * Check if the new state is different then the old state.
+	 */
+	if (rt2x00dev->interface.filter == flags)
+		return;
+
+	rt2x00dev->interface.filter = flags;
+
+	/*
+	 * Raise the pending bit to indicate the
+	 * packet filter should be updated.
+	 */
+	__set_bit(PACKET_FILTER_PENDING, &rt2x00dev->flags);
+
+	/*
+	 * Check if Packet filter actions are allowed in
+	 * atomic context. If not, raise the pending flag and
+	 * let it be.
+	 */
+	if (!test_bit(PACKET_FILTER_SCHEDULED, &rt2x00dev->flags) ||
+	    !in_atomic())
+		rt2x00lib_config_packet_filter(rt2x00dev, flags);
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_set_multicast_list);
+
+int rt2x00mac_get_stats(struct ieee80211_hw *hw,
+			struct ieee80211_low_level_stats *stats)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	/*
+	 * The dot11ACKFailureCount, dot11RTSFailureCount and
+	 * dot11RTSSuccessCount are updated in interrupt time.
+	 * dot11FCSErrorCount is updated in the link tuner.
+	 */
+	memcpy(stats, &rt2x00dev->low_level_stats, sizeof(*stats));
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_get_stats);
+
+int rt2x00mac_get_tx_stats(struct ieee80211_hw *hw,
+			   struct ieee80211_tx_queue_stats *stats)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	unsigned int i;
+
+	for (i = 0; i < hw->queues; i++)
+		memcpy(&stats->data[i], &rt2x00dev->tx[i].stats,
+		       sizeof(rt2x00dev->tx[i].stats));
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_get_tx_stats);
+
+int rt2x00mac_conf_tx(struct ieee80211_hw *hw, int queue,
+		      const struct ieee80211_tx_queue_params *params)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	struct data_ring *ring;
+
+	ring = rt2x00lib_get_ring(rt2x00dev, queue);
+	if (unlikely(!ring))
+		return -EINVAL;
+
+	/*
+	 * The passed variables are stored as real value ((2^n)-1).
+	 * Ralink registers require to know the bit number 'n'.
+	 */
+	if (params->cw_min)
+		ring->tx_params.cw_min = fls(params->cw_min);
+	else
+		ring->tx_params.cw_min = 5; /* cw_min: 2^5 = 32. */
+
+	if (params->cw_max)
+		ring->tx_params.cw_max = fls(params->cw_max);
+	else
+		ring->tx_params.cw_max = 10; /* cw_min: 2^10 = 1024. */
+
+	if (params->aifs)
+		ring->tx_params.aifs = params->aifs;
+	else
+		ring->tx_params.aifs = 2;
+
+	INFO(rt2x00dev,
+	     "Configured TX ring %d - CWmin: %d, CWmax: %d, Aifs: %d.\n",
+	     queue, ring->tx_params.cw_min, ring->tx_params.cw_max,
+	     ring->tx_params.aifs);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_conf_tx);
--- a/Show More
+++ b/Show More