Add rt2x00-mac80211 snapshot (#1916)

SVN-Revision: 8184

28 files changed, 19548 insertions, 0 deletions

diff --git a/package/rt2x00/src/Makefile b/package/rt2x00/src/Makefile
new file mode 100644
index 0000000..4f3304f
--- /dev/null
+++ b/package/rt2x00/src/Makefile
@@ -0,0 +1,11 @@
+rt2x00lib-objs := rt2x00dev.o rt2x00mac.o
+
+EXTRA_CFLAGS += -DCONFIG_RT2X00_LIB_FIRMWARE
+
+obj-m				+= rt2x00lib.o rt2x00pci.o 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
diff --git a/package/rt2x00/src/rt2400pci.c b/package/rt2x00/src/rt2400pci.c
new file mode 100644
index 0000000..aaed3b4
--- /dev/null
+++ b/package/rt2x00/src/rt2400pci.c
@@ -0,0 +1,1694 @@
+/*
+	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: rt2400pci
+	Abstract: rt2400pci device specific routines.
+	Supported chipsets: RT2460.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2400pci"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/eeprom_93cx6.h>
+
+#include <asm/io.h>
+
+#include "rt2x00.h"
+#include "rt2x00pci.h"
+#include "rt2400pci.h"
+
+/*
+ * Register access.
+ * All access to the CSR registers will go through the methods
+ * rt2x00pci_register_read and rt2x00pci_register_write.
+ * BBP and RF register require indirect register access,
+ * and use the CSR registers BBPCSR and RFCSR to achieve this.
+ * These indirect registers work with busy bits,
+ * and we will try maximal REGISTER_BUSY_COUNT times to access
+ * the register while taking a REGISTER_BUSY_DELAY us delay
+ * between each attampt. When the busy bit is still set at that time,
+ * the access attempt is considered to have failed,
+ * and we will print an error.
+ */
+static u32 rt2400pci_bbp_check(const struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+	unsigned int i;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2x00pci_register_read(rt2x00dev, BBPCSR, &reg);
+		if (!rt2x00_get_field32(reg, BBPCSR_BUSY))
+			break;
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	return reg;
+}
+
+static void rt2400pci_bbp_write(const struct rt2x00_dev *rt2x00dev,
+	const u8 reg_id, const u8 value)
+{
+	u32 reg;
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt2400pci_bbp_check(rt2x00dev);
+	if (rt2x00_get_field32(reg, BBPCSR_BUSY)) {
+		ERROR(rt2x00dev, "BBPCSR register busy. Write failed.\n");
+		return;
+	}
+
+	/*
+	 * Write the data into the BBP.
+	 */
+	reg = 0;
+	rt2x00_set_field32(&reg, BBPCSR_VALUE, value);
+	rt2x00_set_field32(&reg, BBPCSR_REGNUM, reg_id);
+	rt2x00_set_field32(&reg, BBPCSR_BUSY, 1);
+	rt2x00_set_field32(&reg, BBPCSR_WRITE_CONTROL, 1);
+
+	rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
+}
+
+static void rt2400pci_bbp_read(const struct rt2x00_dev *rt2x00dev,
+	const u8 reg_id, u8 *value)
+{
+	u32 reg;
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt2400pci_bbp_check(rt2x00dev);
+	if (rt2x00_get_field32(reg, BBPCSR_BUSY)) {
+		ERROR(rt2x00dev, "BBPCSR register busy. Read failed.\n");
+		return;
+	}
+
+	/*
+	 * Write the request into the BBP.
+	 */
+	reg = 0;
+	rt2x00_set_field32(&reg, BBPCSR_REGNUM, reg_id);
+	rt2x00_set_field32(&reg, BBPCSR_BUSY, 1);
+	rt2x00_set_field32(&reg, BBPCSR_WRITE_CONTROL, 0);
+
+	rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt2400pci_bbp_check(rt2x00dev);
+	if (rt2x00_get_field32(reg, BBPCSR_BUSY)) {
+		ERROR(rt2x00dev, "BBPCSR register busy. Read failed.\n");
+		*value = 0xff;
+		return;
+	}
+
+	*value = rt2x00_get_field32(reg, BBPCSR_VALUE);
+}
+
+static void rt2400pci_rf_write(const struct rt2x00_dev *rt2x00dev,
+	const u32 value)
+{
+	u32 reg;
+	unsigned int i;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2x00pci_register_read(rt2x00dev, RFCSR, &reg);
+		if (!rt2x00_get_field32(reg, RFCSR_BUSY))
+			goto rf_write;
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	ERROR(rt2x00dev, "RFCSR register busy. Write failed.\n");
+	return;
+
+rf_write:
+	reg = 0;
+	rt2x00_set_field32(&reg, RFCSR_VALUE, value);
+	rt2x00_set_field32(&reg, RFCSR_NUMBER_OF_BITS, 20);
+	rt2x00_set_field32(&reg, RFCSR_IF_SELECT, 0);
+	rt2x00_set_field32(&reg, RFCSR_BUSY, 1);
+
+	rt2x00pci_register_write(rt2x00dev, RFCSR, reg);
+}
+
+static void rt2400pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
+{
+	struct rt2x00_dev *rt2x00dev = eeprom->data;
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, CSR21, &reg);
+
+	eeprom->reg_data_in = !!rt2x00_get_field32(reg,
+		CSR21_EEPROM_DATA_IN);
+	eeprom->reg_data_out = !!rt2x00_get_field32(reg,
+		CSR21_EEPROM_DATA_OUT);
+	eeprom->reg_data_clock = !!rt2x00_get_field32(reg,
+		CSR21_EEPROM_DATA_CLOCK);
+	eeprom->reg_chip_select = !!rt2x00_get_field32(reg,
+		CSR21_EEPROM_CHIP_SELECT);
+}
+
+static void rt2400pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
+{
+	struct rt2x00_dev *rt2x00dev = eeprom->data;
+	u32 reg = 0;
+
+	rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_IN,
+		!!eeprom->reg_data_in);
+	rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_OUT,
+		!!eeprom->reg_data_out);
+	rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_CLOCK,
+		!!eeprom->reg_data_clock);
+	rt2x00_set_field32(&reg, CSR21_EEPROM_CHIP_SELECT,
+		!!eeprom->reg_chip_select);
+
+	rt2x00pci_register_write(rt2x00dev, CSR21, reg);
+}
+
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+#define CSR_OFFSET(__word)	( CSR_REG_BASE + ((__word) * sizeof(u32)) )
+
+static void rt2400pci_read_csr(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00pci_register_read(rt2x00dev, CSR_OFFSET(word), data);
+}
+
+static void rt2400pci_write_csr(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00pci_register_write(rt2x00dev, CSR_OFFSET(word), *((u32*)data));
+}
+
+static void rt2400pci_read_eeprom(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00_eeprom_read(rt2x00dev, word, data);
+}
+
+static void rt2400pci_write_eeprom(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00_eeprom_write(rt2x00dev, word, *((u16*)data));
+}
+
+static void rt2400pci_read_bbp(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2400pci_bbp_read(rt2x00dev, word, data);
+}
+
+static void rt2400pci_write_bbp(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2400pci_bbp_write(rt2x00dev, word, *((u8*)data));
+}
+
+static const struct rt2x00debug rt2400pci_rt2x00debug = {
+	.owner 		= THIS_MODULE,
+	.reg_csr	= {
+		.read		= rt2400pci_read_csr,
+		.write		= rt2400pci_write_csr,
+		.word_size	= sizeof(u32),
+		.word_count	= CSR_REG_SIZE / sizeof(u32),
+	},
+	.reg_eeprom	= {
+		.read		= rt2400pci_read_eeprom,
+		.write		= rt2400pci_write_eeprom,
+		.word_size	= sizeof(u16),
+		.word_count	= EEPROM_SIZE / sizeof(u16),
+	},
+	.reg_bbp	= {
+		.read		= rt2400pci_read_bbp,
+		.write		= rt2400pci_write_bbp,
+		.word_size	= sizeof(u8),
+		.word_count	= BBP_SIZE / sizeof(u8),
+	},
+};
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+
+#ifdef CONFIG_RT2400PCI_RFKILL
+static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, GPIOCSR, &reg);
+	return rt2x00_get_field32(reg, GPIOCSR_BIT0);
+}
+#endif /* CONFIG_RT2400PCI_RFKILL */
+
+/*
+ * Configuration handlers.
+ */
+static void rt2400pci_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
+{
+	u32 reg[2];
+
+	memset(&reg, 0, sizeof(reg));
+	memcpy(&reg, bssid, ETH_ALEN);
+
+	/*
+	 * The BSSID is passed to us as an array of bytes,
+	 * that array is little endian, so no need for byte ordering.
+	 */
+	rt2x00pci_register_multiwrite(rt2x00dev, CSR5, &reg, sizeof(reg));
+}
+
+static void rt2400pci_config_promisc(struct rt2x00_dev *rt2x00dev,
+	const int promisc)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
+	rt2x00_set_field32(&reg, RXCSR0_DROP_NOT_TO_ME, !promisc);
+	rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
+}
+
+static void rt2400pci_config_type(struct rt2x00_dev *rt2x00dev, int type)
+{
+	u32 reg;
+
+	rt2x00pci_register_write(rt2x00dev, CSR14, 0);
+
+	/*
+	 * Apply hardware packet filter.
+	 */
+	rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
+
+	if (!is_monitor_present(&rt2x00dev->interface) &&
+	    (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_STA))
+		rt2x00_set_field32(&reg, RXCSR0_DROP_TODS, 1);
+	else
+		rt2x00_set_field32(&reg, RXCSR0_DROP_TODS, 0);
+
+	rt2x00_set_field32(&reg, RXCSR0_DROP_CRC, 1);
+	if (is_monitor_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL, 0);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL, 0);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 0);
+	} else {
+		rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL, 1);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL, 1);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 1);
+	}
+
+	rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
+
+	/*
+	 * Enable beacon config
+	 */
+	rt2x00pci_register_read(rt2x00dev, BCNCSR1, &reg);
+	rt2x00_set_field32(&reg, BCNCSR1_PRELOAD,
+		PREAMBLE + get_duration(IEEE80211_HEADER, 2));
+	rt2x00pci_register_write(rt2x00dev, BCNCSR1, reg);
+
+	/*
+	 * Enable synchronisation.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
+	if (is_interface_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, CSR14_TSF_COUNT, 1);
+		rt2x00_set_field32(&reg, CSR14_TBCN, 1);
+	}
+
+	rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 0);
+	if (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_AP)
+		rt2x00_set_field32(&reg, CSR14_TSF_SYNC, 2);
+	else if (type == IEEE80211_IF_TYPE_STA)
+		rt2x00_set_field32(&reg, CSR14_TSF_SYNC, 1);
+	else if (is_monitor_present(&rt2x00dev->interface) &&
+		 !is_interface_present(&rt2x00dev->interface))
+		rt2x00_set_field32(&reg, CSR14_TSF_SYNC, 0);
+
+	rt2x00pci_register_write(rt2x00dev, CSR14, reg);
+}
+
+static void rt2400pci_config_channel(struct rt2x00_dev *rt2x00dev,
+	const int value, const int channel, const int txpower)
+{
+	u32 rf1 = rt2x00dev->rf1;
+	u32 rf2 = value;
+	u32 rf3 = rt2x00dev->rf3;
+
+	/*
+	 * Switch on tuning bits.
+	 */
+	rt2x00_set_field32(&rf1, RF1_TUNER, 1);
+	rt2x00_set_field32(&rf3, RF3_TUNER, 1);
+
+	rt2400pci_rf_write(rt2x00dev, rf1);
+	rt2400pci_rf_write(rt2x00dev, rf2);
+	rt2400pci_rf_write(rt2x00dev, rf3);
+
+	/*
+	 * RF2420 chipset don't need any additional actions.
+	 */
+	if (rt2x00_rf(&rt2x00dev->chip, RF2420))
+		return;
+
+	/*
+	 * For the RT2421 chipsets we need to write an invalid
+	 * reference clock rate to activate auto_tune.
+	 * After that we set the value back to the correct channel.
+	 */
+	rt2400pci_rf_write(rt2x00dev, rf1);
+	rt2400pci_rf_write(rt2x00dev, 0x000c2a32);
+	rt2400pci_rf_write(rt2x00dev, rf3);
+
+	msleep(1);
+
+	rt2400pci_rf_write(rt2x00dev, rf1);
+	rt2400pci_rf_write(rt2x00dev, rf2);
+	rt2400pci_rf_write(rt2x00dev, rf3);
+
+	msleep(1);
+
+	/*
+	 * Switch off tuning bits.
+	 */
+	rt2x00_set_field32(&rf1, RF1_TUNER, 0);
+	rt2x00_set_field32(&rf3, RF3_TUNER, 0);
+
+	rt2400pci_rf_write(rt2x00dev, rf1);
+	rt2400pci_rf_write(rt2x00dev, rf3);
+
+	/*
+	 * Update rf fields
+	 */
+	rt2x00dev->rf1 = rf1;
+	rt2x00dev->rf2 = rf2;
+	rt2x00dev->rf3 = rf3;
+
+	/*
+	 * Clear false CRC during channel switch.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CNT0, &rf1);
+}
+
+static void rt2400pci_config_txpower(struct rt2x00_dev *rt2x00dev, int txpower)
+{
+	rt2400pci_bbp_write(rt2x00dev, 3, TXPOWER_TO_DEV(txpower));
+}
+
+static void rt2400pci_config_antenna(struct rt2x00_dev *rt2x00dev,
+	int antenna_tx, int antenna_rx)
+{
+	u8 r1;
+	u8 r4;
+
+	rt2400pci_bbp_read(rt2x00dev, 4, &r4);
+	rt2400pci_bbp_read(rt2x00dev, 1, &r1);
+
+	/*
+	 * Configure the TX antenna.
+	 */
+	if (antenna_tx == ANTENNA_DIVERSITY)
+		rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 1);
+	else if (antenna_tx == ANTENNA_A)
+		rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 0);
+	else if (antenna_tx == ANTENNA_B)
+		rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 2);
+
+	/*
+	 * Configure the RX antenna.
+	 */
+	if (antenna_rx == ANTENNA_DIVERSITY)
+		rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
+	else if (antenna_rx == ANTENNA_A)
+		rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 0);
+	else if (antenna_rx == ANTENNA_B)
+		rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
+
+	rt2400pci_bbp_write(rt2x00dev, 4, r4);
+	rt2400pci_bbp_write(rt2x00dev, 1, r1);
+}
+
+static void rt2400pci_config_cw(struct rt2x00_dev *rt2x00dev,
+	struct ieee80211_tx_queue_params *params)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
+	rt2x00_set_field32(&reg, CSR11_CWMIN, params->cw_min);
+	rt2x00_set_field32(&reg, CSR11_CWMAX, params->cw_max);
+	rt2x00pci_register_write(rt2x00dev, CSR11, reg);
+}
+
+static void rt2400pci_config_duration(struct rt2x00_dev *rt2x00dev,
+	int short_slot_time, int beacon_int)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
+	rt2x00_set_field32(&reg, CSR11_SLOT_TIME,
+		short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME);
+	rt2x00pci_register_write(rt2x00dev, CSR11, reg);
+
+	rt2x00pci_register_read(rt2x00dev, CSR18, &reg);
+	rt2x00_set_field32(&reg, CSR18_SIFS, SIFS);
+	rt2x00_set_field32(&reg, CSR18_PIFS,
+		short_slot_time ? SHORT_PIFS :  PIFS);
+	rt2x00pci_register_write(rt2x00dev, CSR18, reg);
+
+	rt2x00pci_register_read(rt2x00dev, CSR19, &reg);
+	rt2x00_set_field32(&reg, CSR19_DIFS,
+		short_slot_time ? SHORT_DIFS : DIFS);
+	rt2x00_set_field32(&reg, CSR19_EIFS, EIFS);
+	rt2x00pci_register_write(rt2x00dev, CSR19, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR1, &reg);
+	rt2x00_set_field32(&reg, TXCSR1_TSF_OFFSET, IEEE80211_HEADER);
+	rt2x00_set_field32(&reg, TXCSR1_AUTORESPONDER, 1);
+	rt2x00pci_register_write(rt2x00dev, TXCSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, CSR12, &reg);
+	rt2x00_set_field32(&reg, CSR12_BEACON_INTERVAL, beacon_int * 16);
+	rt2x00_set_field32(&reg, CSR12_CFP_MAX_DURATION, beacon_int * 16);
+	rt2x00pci_register_write(rt2x00dev, CSR12, reg);
+}
+
+static void rt2400pci_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
+{
+	struct ieee80211_conf *conf = &rt2x00dev->hw->conf;
+	u32 reg;
+	u32 preamble;
+	u16 value;
+
+	preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE)
+		? SHORT_PREAMBLE : PREAMBLE;
+
+	reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE;
+	rt2x00pci_register_write(rt2x00dev, ARCSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR1, &reg);
+	value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
+		 SHORT_DIFS :  DIFS) +
+		PLCP + preamble + get_duration(ACK_SIZE, 10);
+	rt2x00_set_field32(&reg, TXCSR1_ACK_TIMEOUT, value);
+	value = SIFS + PLCP + preamble + get_duration(ACK_SIZE, 10);
+	rt2x00_set_field32(&reg, TXCSR1_ACK_CONSUME_TIME, value);
+	rt2x00pci_register_write(rt2x00dev, TXCSR1, reg);
+
+	preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE) ? 0x08 : 0x00;
+
+	rt2x00pci_register_read(rt2x00dev, ARCSR2, &reg);
+	rt2x00_set_field32(&reg, ARCSR2_SIGNAL, 0x00 | preamble);
+	rt2x00_set_field32(&reg, ARCSR2_SERVICE, 0x04);
+	rt2x00_set_field32(&reg, ARCSR2_LENGTH, get_duration(ACK_SIZE, 10));
+	rt2x00pci_register_write(rt2x00dev, ARCSR2, reg);
+
+	rt2x00pci_register_read(rt2x00dev, ARCSR3, &reg);
+	rt2x00_set_field32(&reg, ARCSR3_SIGNAL, 0x01 | preamble);
+	rt2x00_set_field32(&reg, ARCSR3_SERVICE, 0x04);
+	rt2x00_set_field32(&reg, ARCSR2_LENGTH, get_duration(ACK_SIZE, 20));
+	rt2x00pci_register_write(rt2x00dev, ARCSR3, reg);
+
+	rt2x00pci_register_read(rt2x00dev, ARCSR4, &reg);
+	rt2x00_set_field32(&reg, ARCSR4_SIGNAL, 0x02 | preamble);
+	rt2x00_set_field32(&reg, ARCSR4_SERVICE, 0x04);
+	rt2x00_set_field32(&reg, ARCSR2_LENGTH, get_duration(ACK_SIZE, 55));
+	rt2x00pci_register_write(rt2x00dev, ARCSR4, reg);
+
+	rt2x00pci_register_read(rt2x00dev, ARCSR5, &reg);
+	rt2x00_set_field32(&reg, ARCSR5_SIGNAL, 0x03 | preamble);
+	rt2x00_set_field32(&reg, ARCSR5_SERVICE, 0x84);
+	rt2x00_set_field32(&reg, ARCSR2_LENGTH, get_duration(ACK_SIZE, 110));
+	rt2x00pci_register_write(rt2x00dev, ARCSR5, reg);
+}
+
+static void rt2400pci_config_phymode(struct rt2x00_dev *rt2x00dev,
+	const int phymode)
+{
+	struct ieee80211_hw_mode *mode;
+	struct ieee80211_rate *rate;
+
+	rt2x00dev->curr_hwmode = HWMODE_B;
+
+	mode = &rt2x00dev->hwmodes[rt2x00dev->curr_hwmode];
+	rate = &mode->rates[mode->num_rates - 1];
+
+	rt2400pci_config_rate(rt2x00dev, rate->val2);
+}
+
+static void rt2400pci_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr)
+{
+	u32 reg[2];
+
+	memset(&reg, 0, sizeof(reg));
+	memcpy(&reg, addr, ETH_ALEN);
+
+	/*
+	 * The MAC address is passed to us as an array of bytes,
+	 * that array is little endian, so no need for byte ordering.
+	 */
+	rt2x00pci_register_multiwrite(rt2x00dev, CSR3, &reg, sizeof(reg));
+}
+
+/*
+ * LED functions.
+ */
+static void rt2400pci_enable_led(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, LEDCSR, &reg);
+
+	rt2x00_set_field32(&reg, LEDCSR_ON_PERIOD, 70);
+	rt2x00_set_field32(&reg, LEDCSR_OFF_PERIOD, 30);
+
+	if (rt2x00dev->led_mode == LED_MODE_TXRX_ACTIVITY) {
+		rt2x00_set_field32(&reg, LEDCSR_LINK, 1);
+		rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, 0);
+	} else if (rt2x00dev->led_mode == LED_MODE_ASUS) {
+		rt2x00_set_field32(&reg, LEDCSR_LINK, 0);
+		rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, 1);
+	} else {
+		rt2x00_set_field32(&reg, LEDCSR_LINK, 1);
+		rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, 1);
+	}
+
+	rt2x00pci_register_write(rt2x00dev, LEDCSR, reg);
+}
+
+static void rt2400pci_disable_led(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, LEDCSR, &reg);
+	rt2x00_set_field32(&reg, LEDCSR_LINK, 0);
+	rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, 0);
+	rt2x00pci_register_write(rt2x00dev, LEDCSR, reg);
+}
+
+/*
+ * Link tuning
+ */
+static void rt2400pci_link_tuner(struct rt2x00_dev *rt2x00dev, int rssi)
+{
+	u8 reg;
+	char false_cca_delta;
+
+	/*
+	 * The link tuner should not run longer then 60 seconds,
+	 * and should run once every 2 seconds.
+	 */
+	if (rt2x00dev->link.count > 60 || !(rt2x00dev->link.count % 1))
+		return;
+
+	/*
+	 * Read false CCA counter.
+	 */
+	rt2400pci_bbp_read(rt2x00dev, 39, &reg);
+
+	/*
+	 * Determine difference with previous CCA counter.
+	 */
+	false_cca_delta = reg - rt2x00dev->link.false_cca;
+	rt2x00dev->link.false_cca = reg;
+
+	/*
+	 * Check if the difference is higher than the
+	 * threshold and if so, tune the link.
+	 */
+	if (false_cca_delta >= 8) {
+		/*
+		 * Read and update RX AGC VGC.
+		 */
+		rt2400pci_bbp_read(rt2x00dev, 13, &reg);
+		reg += 2;
+		if (reg < 0x20)
+			rt2400pci_bbp_write(rt2x00dev, 13, reg);
+	}
+}
+
+/*
+ * Initialization functions.
+ */
+static void rt2400pci_init_rxring(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_desc *rxd;
+	unsigned int i;
+	u32 word;
+
+	memset(rt2x00dev->rx->data_addr, 0x00,
+		rt2x00_get_ring_size(rt2x00dev->rx));
+
+	for (i = 0; i < rt2x00dev->rx->stats.limit; i++) {
+		rxd = rt2x00dev->rx->entry[i].priv;
+
+		rt2x00_desc_read(rxd, 2, &word);
+		rt2x00_set_field32(&word, RXD_W2_BUFFER_LENGTH,
+			rt2x00dev->rx->data_size);
+		rt2x00_desc_write(rxd, 2, word);
+
+		rt2x00_desc_read(rxd, 1, &word);
+		rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS,
+			rt2x00dev->rx->entry[i].data_dma);
+		rt2x00_desc_write(rxd, 1, word);
+
+		rt2x00_desc_read(rxd, 0, &word);
+		rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
+		rt2x00_desc_write(rxd, 0, word);
+	}
+
+	rt2x00_ring_index_clear(rt2x00dev->rx);
+}
+
+static void rt2400pci_init_txring(struct rt2x00_dev *rt2x00dev,
+	const int queue)
+{
+	struct data_ring *ring = rt2x00_get_ring(rt2x00dev, queue);
+	struct data_desc *txd;
+	unsigned int i;
+	u32 word;
+
+	memset(ring->data_addr, 0x00, rt2x00_get_ring_size(ring));
+
+	for (i = 0; i < ring->stats.limit; i++) {
+		txd = ring->entry[i].priv;
+
+		rt2x00_desc_read(txd, 1, &word);
+		rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS,
+			ring->entry[i].data_dma);
+		rt2x00_desc_write(txd, 1, word);
+
+		rt2x00_desc_read(txd, 2, &word);
+		rt2x00_set_field32(&word, TXD_W2_BUFFER_LENGTH,
+			ring->data_size);
+		rt2x00_desc_write(txd, 2, word);
+
+		rt2x00_desc_read(txd, 0, &word);
+		rt2x00_set_field32(&word, TXD_W0_VALID, 0);
+		rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
+		rt2x00_desc_write(txd, 0, word);
+	}
+
+	rt2x00_ring_index_clear(ring);
+}
+
+static int rt2400pci_init_rings(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	/*
+	 * Initialize rings.
+	 */
+	rt2400pci_init_rxring(rt2x00dev);
+	rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA0);
+	rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA1);
+	rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_AFTER_BEACON);
+	rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
+
+	/*
+	 * Initialize registers.
+	 */
+	rt2x00pci_register_read(rt2x00dev, TXCSR2, &reg);
+	rt2x00_set_field32(&reg, TXCSR2_TXD_SIZE,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].desc_size);
+	rt2x00_set_field32(&reg, TXCSR2_NUM_TXD,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].stats.limit);
+	rt2x00_set_field32(&reg, TXCSR2_NUM_ATIM,
+		rt2x00dev->bcn[1].stats.limit);
+	rt2x00_set_field32(&reg, TXCSR2_NUM_PRIO,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].stats.limit);
+	rt2x00pci_register_write(rt2x00dev, TXCSR2, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR3, &reg);
+	rt2x00_set_field32(&reg, TXCSR3_TX_RING_REGISTER,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].data_dma);
+	rt2x00pci_register_write(rt2x00dev, TXCSR3, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR5, &reg);
+	rt2x00_set_field32(&reg, TXCSR5_PRIO_RING_REGISTER,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].data_dma);
+	rt2x00pci_register_write(rt2x00dev, TXCSR5, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR4, &reg);
+	rt2x00_set_field32(&reg, TXCSR4_ATIM_RING_REGISTER,
+		rt2x00dev->bcn[1].data_dma);
+	rt2x00pci_register_write(rt2x00dev, TXCSR4, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR6, &reg);
+	rt2x00_set_field32(&reg, TXCSR6_BEACON_RING_REGISTER,
+		rt2x00dev->bcn[0].data_dma);
+	rt2x00pci_register_write(rt2x00dev, TXCSR6, reg);
+
+	rt2x00pci_register_read(rt2x00dev, RXCSR1, &reg);
+	rt2x00_set_field32(&reg, RXCSR1_RXD_SIZE,
+		rt2x00dev->rx->desc_size);
+	rt2x00_set_field32(&reg, RXCSR1_NUM_RXD,
+		rt2x00dev->rx->stats.limit);
+	rt2x00pci_register_write(rt2x00dev, RXCSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, RXCSR2, &reg);
+	rt2x00_set_field32(&reg, RXCSR2_RX_RING_REGISTER,
+		rt2x00dev->rx->data_dma);
+	rt2x00pci_register_write(rt2x00dev, RXCSR2, reg);
+
+	return 0;
+}
+
+static int rt2400pci_init_registers(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
+		return -EBUSY;
+
+	rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0x3f3b3100);
+
+	rt2x00pci_register_write(rt2x00dev, PSCSR0, 0x00020002);
+	rt2x00pci_register_write(rt2x00dev, PSCSR1, 0x00000002);
+	rt2x00pci_register_write(rt2x00dev, PSCSR2, 0x00020002);
+	rt2x00pci_register_write(rt2x00dev, PSCSR3, 0x00000002);
+
+	rt2x00pci_register_read(rt2x00dev, TIMECSR, &reg);
+	rt2x00_set_field32(&reg, TIMECSR_US_COUNT, 33);
+	rt2x00_set_field32(&reg, TIMECSR_US_64_COUNT, 63);
+	rt2x00_set_field32(&reg, TIMECSR_BEACON_EXPECT, 0);
+	rt2x00pci_register_write(rt2x00dev, TIMECSR, reg);
+
+	rt2x00pci_register_read(rt2x00dev, CSR9, &reg);
+	rt2x00_set_field32(&reg, CSR9_MAX_FRAME_UNIT,
+		(rt2x00dev->rx->data_size / 128));
+	rt2x00pci_register_write(rt2x00dev, CSR9, reg);
+
+	rt2x00pci_register_write(rt2x00dev, CNT3, 0x3f080000);
+
+	rt2x00pci_register_write(rt2x00dev, MACCSR0, 0x00217223);
+	rt2x00pci_register_write(rt2x00dev, MACCSR1, 0x00235518);
+
+	rt2x00pci_register_read(rt2x00dev, MACCSR2, &reg);
+	rt2x00_set_field32(&reg, MACCSR2_DELAY, 64);
+	rt2x00pci_register_write(rt2x00dev, MACCSR2, reg);
+
+	rt2x00pci_register_read(rt2x00dev, RXCSR3, &reg);
+	/*
+	 * Tx power.
+	 */
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID0, 3);
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID0_VALID, 1);
+	/*
+	 * Signal.
+	 */
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID1, 32);
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID1_VALID, 1);
+	/*
+	 * Rssi.
+	 */
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID2, 36);
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID2_VALID, 1);
+	rt2x00pci_register_write(rt2x00dev, RXCSR3, reg);
+
+	rt2x00pci_register_read(rt2x00dev, RALINKCSR, &reg);
+	rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_DATA0, 17);
+	rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_ID0, 154);
+	rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_DATA1, 0);
+	rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_ID1, 154);
+	rt2x00pci_register_write(rt2x00dev, RALINKCSR, reg);
+
+	rt2x00pci_register_read(rt2x00dev, CSR1, &reg);
+	rt2x00_set_field32(&reg, CSR1_SOFT_RESET, 1);
+	rt2x00_set_field32(&reg, CSR1_BBP_RESET, 0);
+	rt2x00_set_field32(&reg, CSR1_HOST_READY, 0);
+	rt2x00pci_register_write(rt2x00dev, CSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, CSR1, &reg);
+	rt2x00_set_field32(&reg, CSR1_SOFT_RESET, 0);
+	rt2x00_set_field32(&reg, CSR1_HOST_READY, 1);
+	rt2x00pci_register_write(rt2x00dev, CSR1, reg);
+
+	/*
+	 * We must clear the FCS and FIFO error count.
+	 * These registers are cleared on read,
+	 * so we may pass a useless variable to store the value.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CNT0, &reg);
+	rt2x00pci_register_read(rt2x00dev, CNT4, &reg);
+
+	return 0;
+}
+
+static int rt2400pci_init_bbp(struct rt2x00_dev *rt2x00dev)
+{
+	unsigned int i;
+	u16 eeprom;
+	u8 reg_id;
+	u8 value;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2400pci_bbp_read(rt2x00dev, 0, &value);
+		if ((value != 0xff) && (value != 0x00))
+			goto continue_csr_init;
+		NOTICE(rt2x00dev, "Waiting for BBP register.\n");
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
+	return -EACCES;
+
+continue_csr_init:
+	rt2400pci_bbp_write(rt2x00dev, 1, 0x00);
+	rt2400pci_bbp_write(rt2x00dev, 3, 0x27);
+	rt2400pci_bbp_write(rt2x00dev, 4, 0x08);
+	rt2400pci_bbp_write(rt2x00dev, 10, 0x0f);
+	rt2400pci_bbp_write(rt2x00dev, 13, 0x08);
+	rt2400pci_bbp_write(rt2x00dev, 15, 0x72);
+	rt2400pci_bbp_write(rt2x00dev, 16, 0x74);
+	rt2400pci_bbp_write(rt2x00dev, 17, 0x20);
+	rt2400pci_bbp_write(rt2x00dev, 18, 0x72);
+	rt2400pci_bbp_write(rt2x00dev, 19, 0x0b);
+	rt2400pci_bbp_write(rt2x00dev, 20, 0x00);
+	rt2400pci_bbp_write(rt2x00dev, 28, 0x11);
+	rt2400pci_bbp_write(rt2x00dev, 29, 0x04);
+	rt2400pci_bbp_write(rt2x00dev, 30, 0x21);
+	rt2400pci_bbp_write(rt2x00dev, 31, 0x00);
+
+	DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
+	for (i = 0; i < EEPROM_BBP_SIZE; i++) {
+		rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
+
+		if (eeprom != 0xffff && eeprom != 0x0000) {
+			reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
+			value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
+			DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
+				reg_id, value);
+			rt2400pci_bbp_write(rt2x00dev, reg_id, value);
+		}
+	}
+	DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
+
+	return 0;
+}
+
+/*
+ * Device state switch handlers.
+ */
+static void rt2400pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
+	rt2x00_set_field32(&reg, RXCSR0_DISABLE_RX,
+		state == STATE_RADIO_RX_OFF);
+	rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
+}
+
+static int rt2400pci_enable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	/*
+	 * Initialize all registers.
+	 */
+	if (rt2400pci_init_rings(rt2x00dev) ||
+	    rt2400pci_init_registers(rt2x00dev) ||
+	    rt2400pci_init_bbp(rt2x00dev)) {
+		ERROR(rt2x00dev, "Register initialization failed.\n");
+		return -EIO;
+	}
+
+	/*
+	 * Clear interrupts.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
+	rt2x00pci_register_write(rt2x00dev, CSR7, reg);
+
+	/*
+	 * Enable interrupts.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CSR8, &reg);
+	rt2x00_set_field32(&reg, CSR8_TBCN_EXPIRE, 0);
+	rt2x00_set_field32(&reg, CSR8_TXDONE_TXRING, 0);
+	rt2x00_set_field32(&reg, CSR8_TXDONE_ATIMRING, 0);
+	rt2x00_set_field32(&reg, CSR8_TXDONE_PRIORING, 0);
+	rt2x00_set_field32(&reg, CSR8_RXDONE, 0);
+	rt2x00pci_register_write(rt2x00dev, CSR8, reg);
+
+	/*
+	 * Enable LED
+	 */
+	rt2400pci_enable_led(rt2x00dev);
+
+	return 0;
+}
+
+static void rt2400pci_disable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	/*
+	 * Disable LED
+	 */
+	rt2400pci_disable_led(rt2x00dev);
+
+	rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0);
+
+	/*
+	 * Disable synchronisation.
+	 */
+	rt2x00pci_register_write(rt2x00dev, CSR14, 0);
+
+	/*
+	 * Cancel RX and TX.
+	 */
+	rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
+	rt2x00_set_field32(&reg, TXCSR0_ABORT, 1);
+	rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
+
+	/*
+	 * Disable interrupts.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CSR8, &reg);
+	rt2x00_set_field32(&reg, CSR8_TBCN_EXPIRE, 1);
+	rt2x00_set_field32(&reg, CSR8_TXDONE_TXRING, 1);
+	rt2x00_set_field32(&reg, CSR8_TXDONE_ATIMRING, 1);
+	rt2x00_set_field32(&reg, CSR8_TXDONE_PRIORING, 1);
+	rt2x00_set_field32(&reg, CSR8_RXDONE, 1);
+	rt2x00pci_register_write(rt2x00dev, CSR8, reg);
+}
+
+static int rt2400pci_set_state(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	u32 reg;
+	unsigned int i;
+	char put_to_sleep;
+	char bbp_state;
+	char rf_state;
+
+	put_to_sleep = (state != STATE_AWAKE);
+
+	rt2x00pci_register_read(rt2x00dev, PWRCSR1, &reg);
+	rt2x00_set_field32(&reg, PWRCSR1_SET_STATE, 1);
+	rt2x00_set_field32(&reg, PWRCSR1_BBP_DESIRE_STATE, state);
+	rt2x00_set_field32(&reg, PWRCSR1_RF_DESIRE_STATE, state);
+	rt2x00_set_field32(&reg, PWRCSR1_PUT_TO_SLEEP, put_to_sleep);
+	rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg);
+
+	/*
+	 * Device is not guaranteed to be in the requested state yet.
+	 * We must wait until the register indicates that the
+	 * device has entered the correct state.
+	 */
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2x00pci_register_read(rt2x00dev, PWRCSR1, &reg);
+		bbp_state = rt2x00_get_field32(reg, PWRCSR1_BBP_CURR_STATE);
+		rf_state = rt2x00_get_field32(reg, PWRCSR1_RF_CURR_STATE);
+		if (bbp_state == state && rf_state == state)
+			return 0;
+		msleep(10);
+	}
+
+	NOTICE(rt2x00dev, "Device failed to enter state %d, "
+		"current device state: bbp %d and rf %d.\n",
+		state, bbp_state, rf_state);
+
+	return -EBUSY;
+}
+
+static int rt2400pci_set_device_state(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	int retval = 0;
+
+	switch (state) {
+		case STATE_RADIO_ON:
+			retval = rt2400pci_enable_radio(rt2x00dev);
+		break;
+		case STATE_RADIO_OFF:
+			rt2400pci_disable_radio(rt2x00dev);
+		break;
+		case STATE_RADIO_RX_ON:
+		case STATE_RADIO_RX_OFF:
+			rt2400pci_toggle_rx(rt2x00dev, state);
+		break;
+		case STATE_DEEP_SLEEP:
+		case STATE_SLEEP:
+		case STATE_STANDBY:
+		case STATE_AWAKE:
+			retval = rt2400pci_set_state(rt2x00dev, state);
+		break;
+		default:
+			retval = -ENOTSUPP;
+		break;
+	}
+
+	return retval;
+}
+
+/*
+ * TX descriptor initialization
+ */
+static void rt2400pci_write_tx_desc(struct rt2x00_dev *rt2x00dev,
+	struct data_entry *entry, struct data_desc *txd,
+	struct data_entry_desc *desc, struct ieee80211_hdr *ieee80211hdr,
+	unsigned int length, struct ieee80211_tx_control *control)
+{
+	u32 word;
+	u32 signal = 0;
+	u32 service = 0;
+	u32 length_high = 0;
+	u32 length_low = 0;
+
+	/*
+	 * The PLCP values should be treated as if they
+	 * were BBP values.
+	 */
+	rt2x00_set_field32(&signal, BBPCSR_VALUE, desc->signal);
+	rt2x00_set_field32(&signal, BBPCSR_REGNUM, 5);
+	rt2x00_set_field32(&signal, BBPCSR_BUSY, 1);
+
+	rt2x00_set_field32(&service, BBPCSR_VALUE, desc->service);
+	rt2x00_set_field32(&service, BBPCSR_REGNUM, 6);
+	rt2x00_set_field32(&service, BBPCSR_BUSY, 1);
+
+	rt2x00_set_field32(&length_high, BBPCSR_VALUE, desc->length_high);
+	rt2x00_set_field32(&length_high, BBPCSR_REGNUM, 7);
+	rt2x00_set_field32(&length_high, BBPCSR_BUSY, 1);
+
+	rt2x00_set_field32(&length_low, BBPCSR_VALUE, desc->length_low);
+	rt2x00_set_field32(&length_low, BBPCSR_REGNUM, 8);
+	rt2x00_set_field32(&length_low, BBPCSR_BUSY, 1);
+
+	/*
+	 * Start writing the descriptor words.
+	 */
+	rt2x00_desc_read(txd, 2, &word);
+	rt2x00_set_field32(&word, TXD_W2_DATABYTE_COUNT, length);
+	rt2x00_desc_write(txd, 2, word);
+
+	rt2x00_desc_read(txd, 3, &word);
+	rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, signal);
+	rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, service);
+	rt2x00_desc_write(txd, 3, word);
+
+	rt2x00_desc_read(txd, 4, &word);
+	rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_LOW, length_low);
+	rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_HIGH, length_high);
+	rt2x00_desc_write(txd, 4, word);
+
+	rt2x00_desc_read(txd, 0, &word);
+	rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1);
+	rt2x00_set_field32(&word, TXD_W0_VALID, 1);
+	rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
+		test_bit(ENTRY_TXD_MORE_FRAG, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_ACK,
+		test_bit(ENTRY_TXD_REQ_ACK, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
+		test_bit(ENTRY_TXD_REQ_TIMESTAMP, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_RTS,
+		test_bit(ENTRY_TXD_RTS_FRAME, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs);
+	rt2x00_set_field32(&word, TXD_W0_RETRY_MODE, 0);
+	rt2x00_desc_write(txd, 0, word);
+}
+
+/*
+ * TX data initialization
+ */
+static void rt2400pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev, int queue)
+{
+	u32 reg;
+
+	if (queue == IEEE80211_TX_QUEUE_BEACON) {
+		rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
+		if (!rt2x00_get_field32(reg, CSR14_BEACON_GEN)) {
+			rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 1);
+			rt2x00pci_register_write(rt2x00dev, CSR14, reg);
+		}
+		return;
+	}
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
+	if (queue == IEEE80211_TX_QUEUE_DATA0)
+		rt2x00_set_field32(&reg, TXCSR0_KICK_PRIO, 1);
+	else if (queue == IEEE80211_TX_QUEUE_DATA1)
+		rt2x00_set_field32(&reg, TXCSR0_KICK_TX, 1);
+	else if (queue == IEEE80211_TX_QUEUE_AFTER_BEACON)
+		rt2x00_set_field32(&reg, TXCSR0_KICK_ATIM, 1);
+	rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
+}
+
+/*
+ * Interrupt functions.
+ */
+static void rt2400pci_rxdone(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_ring *ring = rt2x00dev->rx;
+	struct data_entry *entry;
+	struct data_desc *rxd;
+	u32 word0;
+	u32 word2;
+	int signal;
+	int rssi;
+	u16 size;
+
+	while (1) {
+		entry = rt2x00_get_data_entry(ring);
+		rxd = entry->priv;
+		rt2x00_desc_read(rxd, 0, &word0);
+		rt2x00_desc_read(rxd, 2, &word2);
+
+		if (rt2x00_get_field32(word0, RXD_W0_OWNER_NIC))
+			break;
+
+		/*
+		 * TODO: Don't we need to keep statistics
+		 * updated about events like CRC and physical errors?
+		 */
+		if (rt2x00_get_field32(word0, RXD_W0_CRC) ||
+		    rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
+			goto skip_entry;
+
+		/*
+		 * Obtain the status about this packet.
+		 */
+		size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
+		signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL);
+		rssi = rt2x00_get_field32(word2, RXD_W2_RSSI);
+
+		/*
+		 * Send the packet to upper layer.
+		 */
+		rt2x00lib_rxdone(entry, entry->data_addr, size,
+			signal, rssi, 0);
+
+skip_entry:
+		if (test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags)) {
+			rt2x00_set_field32(&word0, RXD_W0_OWNER_NIC, 1);
+			rt2x00_desc_write(rxd, 0, word0);
+		}
+
+		rt2x00_ring_index_inc(ring);
+	}
+}
+
+static void rt2400pci_txdone(struct rt2x00_dev *rt2x00dev, const int queue)
+{
+	struct data_ring *ring = rt2x00_get_ring(rt2x00dev, queue);
+	struct data_entry *entry;
+	struct data_desc *txd;
+	u32 word;
+	int tx_status;
+	int retry;
+
+	while (!rt2x00_ring_empty(ring)) {
+		entry = rt2x00_get_data_entry_done(ring);
+		txd = entry->priv;
+		rt2x00_desc_read(txd, 0, &word);
+
+		if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
+		    !rt2x00_get_field32(word, TXD_W0_VALID))
+			break;
+
+		/*
+		 * Obtain the status about this packet.
+		 */
+		tx_status = rt2x00_get_field32(word, TXD_W0_RESULT);
+		retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT);
+
+		rt2x00lib_txdone(entry, tx_status, retry);
+
+		/*
+		 * Make this entry available for reuse.
+		 */
+		entry->flags = 0;
+		rt2x00_set_field32(&word, TXD_W0_VALID, 0);
+		rt2x00_desc_write(txd, 0, word);
+		rt2x00_ring_index_done_inc(ring);
+	}
+
+	/*
+	 * If the data ring was full before the txdone handler
+	 * we must make sure the packet queue in the mac80211 stack
+	 * is reenabled when the txdone handler has finished.
+	 */
+	entry = ring->entry;
+	if (!rt2x00_ring_full(ring))
+		ieee80211_wake_queue(rt2x00dev->hw,
+			entry->tx_status.control.queue);
+}
+
+static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance)
+{
+	struct rt2x00_dev *rt2x00dev = dev_instance;
+	u32 reg;
+
+	/*
+	 * Get the interrupt sources & saved to local variable.
+	 * Write register value back to clear pending interrupts.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
+	rt2x00pci_register_write(rt2x00dev, CSR7, reg);
+
+	if (!reg)
+		return IRQ_NONE;
+
+	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+		return IRQ_HANDLED;
+
+	/*
+	 * Handle interrupts, walk through all bits
+	 * and run the tasks, the bits are checked in order of
+	 * priority.
+	 */
+
+	/*
+	 * 1 - Beacon timer expired interrupt.
+	 */
+	if (rt2x00_get_field32(reg, CSR7_TBCN_EXPIRE))
+		rt2x00pci_beacondone(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
+
+	/*
+	 * 2 - Rx ring done interrupt.
+	 */
+	if (rt2x00_get_field32(reg, CSR7_RXDONE))
+		rt2400pci_rxdone(rt2x00dev);
+
+	/*
+	 * 3 - Atim ring transmit done interrupt.
+	 */
+	if (rt2x00_get_field32(reg, CSR7_TXDONE_ATIMRING))
+		rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_AFTER_BEACON);
+
+	/*
+	 * 4 - Priority ring transmit done interrupt.
+	 */
+	if (rt2x00_get_field32(reg, CSR7_TXDONE_PRIORING))
+		rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_DATA0);
+
+	/*
+	 * 5 - Tx ring transmit done interrupt.
+	 */
+	if (rt2x00_get_field32(reg, CSR7_TXDONE_TXRING))
+		rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_DATA1);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * Device initialization functions.
+ */
+static int rt2400pci_alloc_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	struct eeprom_93cx6 eeprom;
+	u32 reg;
+	u16 word;
+
+	/*
+	 * Allocate the eeprom memory, check the eeprom width
+	 * and copy the entire eeprom into this allocated memory.
+	 */
+	rt2x00dev->eeprom = kzalloc(EEPROM_SIZE, GFP_KERNEL);
+	if (!rt2x00dev->eeprom)
+		return -ENOMEM;
+
+	rt2x00pci_register_read(rt2x00dev, CSR21, &reg);
+
+	eeprom.data = rt2x00dev;
+	eeprom.register_read = rt2400pci_eepromregister_read;
+	eeprom.register_write = rt2400pci_eepromregister_write;
+	eeprom.width = rt2x00_get_field32(reg, CSR21_TYPE_93C46) ?
+		PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
+	eeprom.reg_data_in = 0;
+	eeprom.reg_data_out = 0;
+	eeprom.reg_data_clock = 0;
+	eeprom.reg_chip_select = 0;
+
+	eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
+		EEPROM_SIZE / sizeof(u16));
+
+	/*
+	 * Start validation of the data that has been read.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
+	if (word == 0xffff) {
+		ERROR(rt2x00dev, "Invalid EEPROM data detected.\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int rt2400pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+	u16 value;
+	u16 eeprom;
+
+	/*
+	 * Read EEPROM word for configuration.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
+
+	/*
+	 * Identify RF chipset.
+	 */
+	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
+	rt2x00pci_register_read(rt2x00dev, CSR0, &reg);
+	rt2x00_set_chip(rt2x00dev, RT2460, value, reg);
+
+	if (!rt2x00_rf(&rt2x00dev->chip, RF2420) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2421)) {
+		ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
+		return -ENODEV;
+	}
+
+	/*
+	 * Identify default antenna configuration.
+	 */
+	rt2x00dev->hw->conf.antenna_sel_tx = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_TX_DEFAULT);
+	rt2x00dev->hw->conf.antenna_sel_rx = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_RX_DEFAULT);
+
+	/*
+	 * Store led mode, for correct led behaviour.
+	 */
+	rt2x00dev->led_mode = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_LED_MODE);
+
+	/*
+	 * Detect if this device has an hardware controlled radio.
+	 */
+	if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
+		__set_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
+
+	/*
+	 * Check if the BBP tuning should be enabled.
+	 */
+	if (!rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_AGCVGC_TUNING))
+		__set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
+
+	return 0;
+}
+
+/*
+ * RF value list for RF2420 & RF2421
+ * Supports: 2.4 GHz
+ */
+static const u32 rf_vals_bg[] = {
+	0x000c1fda, 0x000c1fee, 0x000c2002, 0x000c2016, 0x000c202a,
+	0x000c203e, 0x000c2052, 0x000c2066, 0x000c207a, 0x000c208e,
+	0x000c20a2, 0x000c20b6, 0x000c20ca, 0x000c20fa
+};
+
+static void rt2400pci_init_hw_mode(struct rt2x00_dev *rt2x00dev)
+{
+	struct hw_mode_spec *spec = &rt2x00dev->spec;
+	u8 *txpower;
+	unsigned int i;
+
+	/*
+	 * Initialize all hw fields.
+	 */
+	rt2x00dev->hw->flags = IEEE80211_HW_HOST_GEN_BEACON |
+		IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
+		IEEE80211_HW_WEP_INCLUDE_IV |
+		IEEE80211_HW_DATA_NULLFUNC_ACK |
+		IEEE80211_HW_NO_TKIP_WMM_HWACCEL |
+		IEEE80211_HW_MONITOR_DURING_OPER;
+	rt2x00dev->hw->extra_tx_headroom = 0;
+	rt2x00dev->hw->max_rssi = MAX_RX_SSI;
+	rt2x00dev->hw->max_noise = MAX_RX_NOISE;
+	rt2x00dev->hw->queues = 2;
+
+	/*
+	 * This device supports ATIM
+	 */
+	__set_bit(DEVICE_SUPPORT_ATIM, &rt2x00dev->flags);
+
+	/*
+	 * Set device specific, but channel independent RF values.
+	 */
+	rt2x00dev->rf1 = 0x00022058;
+	if (rt2x00_rf(&rt2x00dev->chip, RF2420))
+		rt2x00dev->rf3 = 0x00000111;
+	else
+		rt2x00dev->rf3 = 0x00000101;
+
+	/*
+	 * Convert tx_power array in eeprom.
+	 */
+	txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
+	for (i = 0; i < 14; i++)
+		txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
+
+	/*
+	 * Initialize hw_mode information.
+	 */
+	spec->mac_addr = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
+	spec->num_modes = 1;
+	spec->num_rates = 4;
+	spec->num_channels = 14;
+	spec->tx_power_a = NULL;
+	spec->tx_power_bg = txpower;
+	spec->tx_power_default = DEFAULT_TXPOWER;
+	spec->chan_val_a = NULL;
+	spec->chan_val_bg = rf_vals_bg;
+}
+
+static int rt2400pci_init_hw(struct rt2x00_dev *rt2x00dev)
+{
+	int retval;
+
+	/*
+	 * Allocate eeprom data.
+	 */
+	retval = rt2400pci_alloc_eeprom(rt2x00dev);
+	if (retval)
+		return retval;
+
+	retval = rt2400pci_init_eeprom(rt2x00dev);
+	if (retval)
+		return retval;
+
+	/*
+	 * Initialize hw specifications.
+	 */
+	rt2400pci_init_hw_mode(rt2x00dev);
+
+	return 0;
+}
+
+/*
+ * IEEE80211 stack callback functions.
+ */
+static int rt2400pci_get_stats(struct ieee80211_hw *hw,
+	struct ieee80211_low_level_stats *stats)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u32 reg;
+
+	/*
+	 * Update FCS error count from register.
+	 * The dot11ACKFailureCount, dot11RTSFailureCount and
+	 * dot11RTSSuccessCount are updated in interrupt time.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CNT0, &reg);
+	rt2x00dev->low_level_stats.dot11FCSErrorCount +=
+		rt2x00_get_field32(reg, CNT0_FCS_ERROR);
+
+	memcpy(stats, &rt2x00dev->low_level_stats, sizeof(*stats));
+
+	return 0;
+}
+
+static int rt2400pci_set_retry_limit(struct ieee80211_hw *hw,
+	u32 short_retry, u32 long_retry)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
+	rt2x00_set_field32(&reg, CSR11_LONG_RETRY, long_retry);
+	rt2x00_set_field32(&reg, CSR11_SHORT_RETRY, short_retry);
+	rt2x00pci_register_write(rt2x00dev, CSR11, reg);
+
+	return 0;
+}
+
+static int rt2400pci_conf_tx(struct ieee80211_hw *hw,
+	int queue, const struct ieee80211_tx_queue_params *params)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	/*
+	 * We don't support variating cw_min and cw_max variables
+	 * per queue. So by default we only configure the TX queue,
+	 * and ignore all other configurations.
+	 */
+	if (queue != IEEE80211_TX_QUEUE_DATA0)
+		return -EINVAL;
+
+	if (rt2x00lib_conf_tx(hw, queue, params))
+		return -EINVAL;
+
+	/*
+	 * Write configuration to register.
+	 */
+	rt2400pci_config_cw(rt2x00dev, &rt2x00dev->tx->tx_params);
+
+	return 0;
+}
+
+static u64 rt2400pci_get_tsf(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u64 tsf;
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, CSR17, &reg);
+	tsf = (u64)rt2x00_get_field32(reg, CSR17_HIGH_TSFTIMER) << 32;
+	rt2x00pci_register_read(rt2x00dev, CSR16, &reg);
+	tsf |= rt2x00_get_field32(reg, CSR16_LOW_TSFTIMER);
+
+	return tsf;
+}
+
+static void rt2400pci_reset_tsf(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	rt2x00pci_register_write(rt2x00dev, CSR16, 0);
+	rt2x00pci_register_write(rt2x00dev, CSR17, 0);
+}
+
+static int rt2400pci_tx_last_beacon(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, CSR15, &reg);
+	return rt2x00_get_field32(reg, CSR15_BEACON_SENT);
+}
+
+static const struct ieee80211_ops rt2400pci_mac80211_ops = {
+	.tx			= rt2x00lib_tx,
+	.reset			= rt2x00lib_reset,
+	.open			= rt2x00lib_open,
+	.stop			= rt2x00lib_stop,
+	.add_interface		= rt2x00lib_add_interface,
+	.remove_interface	= rt2x00lib_remove_interface,
+	.config			= rt2x00lib_config,
+	.config_interface	= rt2x00lib_config_interface,
+	.set_multicast_list	= rt2x00lib_set_multicast_list,
+	.get_stats		= rt2400pci_get_stats,
+	.set_retry_limit	= rt2400pci_set_retry_limit,
+	.conf_tx		= rt2400pci_conf_tx,
+	.get_tx_stats		= rt2x00lib_get_tx_stats,
+	.get_tsf		= rt2400pci_get_tsf,
+	.reset_tsf		= rt2400pci_reset_tsf,
+	.beacon_update		= rt2x00pci_beacon_update,
+	.tx_last_beacon		= rt2400pci_tx_last_beacon,
+};
+
+static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {
+	.irq_handler		= rt2400pci_interrupt,
+	.init_hw		= rt2400pci_init_hw,
+	.initialize		= rt2x00pci_initialize,
+	.uninitialize		= rt2x00pci_uninitialize,
+	.set_device_state	= rt2400pci_set_device_state,
+#ifdef CONFIG_RT2400PCI_RFKILL
+	.rfkill_poll		= rt2400pci_rfkill_poll,
+#endif /* CONFIG_RT2400PCI_RFKILL */
+	.link_tuner		= rt2400pci_link_tuner,
+	.write_tx_desc		= rt2400pci_write_tx_desc,
+	.write_tx_data		= rt2x00pci_write_tx_data,
+	.kick_tx_queue		= rt2400pci_kick_tx_queue,
+	.config_type		= rt2400pci_config_type,
+	.config_phymode		= rt2400pci_config_phymode,
+	.config_channel		= rt2400pci_config_channel,
+	.config_mac_addr	= rt2400pci_config_mac_addr,
+	.config_bssid		= rt2400pci_config_bssid,
+	.config_promisc		= rt2400pci_config_promisc,
+	.config_txpower		= rt2400pci_config_txpower,
+	.config_antenna		= rt2400pci_config_antenna,
+	.config_duration	= rt2400pci_config_duration,
+};
+
+static const struct rt2x00_ops rt2400pci_ops = {
+	.name	= DRV_NAME,
+	.rxd_size = RXD_DESC_SIZE,
+	.txd_size = TXD_DESC_SIZE,
+	.lib	= &rt2400pci_rt2x00_ops,
+	.hw	= &rt2400pci_mac80211_ops,
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+	.debugfs = &rt2400pci_rt2x00debug,
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+};
+
+/*
+ * RT2400pci module information.
+ */
+static struct pci_device_id rt2400pci_device_table[] = {
+	{ PCI_DEVICE(0x1814, 0x0101), PCI_DEVICE_DATA(&rt2400pci_ops) },
+	{ 0, }
+};
+
+MODULE_AUTHOR(DRV_PROJECT);
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("Ralink RT2400 PCI & PCMCIA Wireless LAN driver.");
+MODULE_SUPPORTED_DEVICE("Ralink RT2460 PCI & PCMCIA chipset based cards");
+MODULE_DEVICE_TABLE(pci, rt2400pci_device_table);
+MODULE_LICENSE("GPL");
+
+static struct pci_driver rt2400pci_driver = {
+	.name		= DRV_NAME,
+	.id_table	= rt2400pci_device_table,
+	.probe		= rt2x00pci_probe,
+	.remove		= __devexit_p(rt2x00pci_remove),
+#ifdef CONFIG_PM
+	.suspend	= rt2x00pci_suspend,
+	.resume		= rt2x00pci_resume,
+#endif /* CONFIG_PM */
+};
+
+static int __init rt2400pci_init(void)
+{
+	printk(KERN_INFO "Loading module: %s - %s by %s.\n",
+		DRV_NAME, DRV_VERSION, DRV_PROJECT);
+	return pci_register_driver(&rt2400pci_driver);
+}
+
+static void __exit rt2400pci_exit(void)
+{
+	printk(KERN_INFO "Unloading module: %s.\n", DRV_NAME);
+	pci_unregister_driver(&rt2400pci_driver);
+}
+
+module_init(rt2400pci_init);
+module_exit(rt2400pci_exit);
diff --git a/package/rt2x00/src/rt2400pci.h b/package/rt2x00/src/rt2400pci.h
new file mode 100644
index 0000000..097f4c9
--- /dev/null
+++ b/package/rt2x00/src/rt2400pci.h
@@ -0,0 +1,933 @@
+/*
+	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: rt2400pci
+	Abstract: Data structures and registers for the rt2400pci module.
+	Supported chipsets: RT2460.
+ */
+
+#ifndef RT2400PCI_H
+#define RT2400PCI_H
+
+/*
+ * RF chip defines.
+ */
+#define RF2420				0x0000
+#define RF2421				0x0001
+
+/*
+ * Max RSSI value, required for RSSI <-> dBm conversion.
+ */
+#define MAX_RX_SSI			100
+#define MAX_RX_NOISE			-110
+
+/*
+ * Register layout information.
+ */
+#define CSR_REG_BASE			0x0000
+#define CSR_REG_SIZE			0x014c
+#define EEPROM_BASE			0x0000
+#define EEPROM_SIZE			0x0100
+#define BBP_SIZE			0x0020
+
+/*
+ * Control/Status Registers(CSR).
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * CSR0: ASIC revision number.
+ */
+#define CSR0				0x0000
+
+/*
+ * CSR1: System control register.
+ * SOFT_RESET: Software reset, 1: reset, 0: normal.
+ * BBP_RESET: Hardware reset, 1: reset, 0, release.
+ * HOST_READY: Host ready after initialization.
+ */
+#define CSR1				0x0004
+#define CSR1_SOFT_RESET			FIELD32(0x00000001)
+#define CSR1_BBP_RESET			FIELD32(0x00000002)
+#define CSR1_HOST_READY			FIELD32(0x00000004)
+
+/*
+ * CSR2: System admin status register (invalid).
+ */
+#define CSR2				0x0008
+
+/*
+ * CSR3: STA MAC address register 0.
+ */
+#define CSR3				0x000c
+#define CSR3_BYTE0			FIELD32(0x000000ff)
+#define CSR3_BYTE1			FIELD32(0x0000ff00)
+#define CSR3_BYTE2			FIELD32(0x00ff0000)
+#define CSR3_BYTE3			FIELD32(0xff000000)
+
+/*
+ * CSR4: STA MAC address register 1.
+ */
+#define CSR4				0x0010
+#define CSR4_BYTE4			FIELD32(0x000000ff)
+#define CSR4_BYTE5			FIELD32(0x0000ff00)
+
+/*
+ * CSR5: BSSID register 0.
+ */
+#define CSR5				0x0014
+#define CSR5_BYTE0			FIELD32(0x000000ff)
+#define CSR5_BYTE1			FIELD32(0x0000ff00)
+#define CSR5_BYTE2			FIELD32(0x00ff0000)
+#define CSR5_BYTE3			FIELD32(0xff000000)
+
+/*
+ * CSR6: BSSID register 1.
+ */
+#define CSR6				0x0018
+#define CSR6_BYTE4			FIELD32(0x000000ff)
+#define CSR6_BYTE5			FIELD32(0x0000ff00)
+
+/*
+ * CSR7: Interrupt source register.
+ * Write 1 to clear interrupt.
+ * TBCN_EXPIRE: Beacon timer expired interrupt.
+ * TWAKE_EXPIRE: Wakeup timer expired interrupt.
+ * TATIMW_EXPIRE: Timer of atim window expired interrupt.
+ * TXDONE_TXRING: Tx ring transmit done interrupt.
+ * TXDONE_ATIMRING: Atim ring transmit done interrupt.
+ * TXDONE_PRIORING: Priority ring transmit done interrupt.
+ * RXDONE: Receive done interrupt.
+ */
+#define CSR7				0x001c
+#define CSR7_TBCN_EXPIRE		FIELD32(0x00000001)
+#define CSR7_TWAKE_EXPIRE		FIELD32(0x00000002)
+#define CSR7_TATIMW_EXPIRE		FIELD32(0x00000004)
+#define CSR7_TXDONE_TXRING		FIELD32(0x00000008)
+#define CSR7_TXDONE_ATIMRING		FIELD32(0x00000010)
+#define CSR7_TXDONE_PRIORING		FIELD32(0x00000020)
+#define CSR7_RXDONE			FIELD32(0x00000040)
+
+/*
+ * CSR8: Interrupt mask register.
+ * Write 1 to mask interrupt.
+ * TBCN_EXPIRE: Beacon timer expired interrupt.
+ * TWAKE_EXPIRE: Wakeup timer expired interrupt.
+ * TATIMW_EXPIRE: Timer of atim window expired interrupt.
+ * TXDONE_TXRING: Tx ring transmit done interrupt.
+ * TXDONE_ATIMRING: Atim ring transmit done interrupt.
+ * TXDONE_PRIORING: Priority ring transmit done interrupt.
+ * RXDONE: Receive done interrupt.
+ */
+#define CSR8				0x0020
+#define CSR8_TBCN_EXPIRE		FIELD32(0x00000001)
+#define CSR8_TWAKE_EXPIRE		FIELD32(0x00000002)
+#define CSR8_TATIMW_EXPIRE		FIELD32(0x00000004)
+#define CSR8_TXDONE_TXRING		FIELD32(0x00000008)
+#define CSR8_TXDONE_ATIMRING		FIELD32(0x00000010)
+#define CSR8_TXDONE_PRIORING		FIELD32(0x00000020)
+#define CSR8_RXDONE			FIELD32(0x00000040)
+
+/*
+ * CSR9: Maximum frame length register.
+ * MAX_FRAME_UNIT: Maximum frame length in 128b unit, default: 12.
+ */
+#define CSR9				0x0024
+#define CSR9_MAX_FRAME_UNIT		FIELD32(0x00000f80)
+
+/*
+ * CSR11: Back-off control register.
+ * CWMIN: CWmin. Default cwmin is 31 (2^5 - 1).
+ * CWMAX: CWmax. Default cwmax is 1023 (2^10 - 1).
+ * SLOT_TIME: Slot time, default is 20us for 802.11b.
+ * LONG_RETRY: Long retry count.
+ * SHORT_RETRY: Short retry count.
+ */
+#define CSR11				0x002c
+#define CSR11_CWMIN			FIELD32(0x0000000f)
+#define CSR11_CWMAX			FIELD32(0x000000f0)
+#define CSR11_SLOT_TIME			FIELD32(0x00001f00)
+#define CSR11_LONG_RETRY		FIELD32(0x00ff0000)
+#define CSR11_SHORT_RETRY		FIELD32(0xff000000)
+
+/*
+ * CSR12: Synchronization configuration register 0.
+ * All units in 1/16 TU.
+ * BEACON_INTERVAL: Beacon interval, default is 100 TU.
+ * CFPMAX_DURATION: Cfp maximum duration, default is 100 TU.
+ */
+#define CSR12				0x0030
+#define CSR12_BEACON_INTERVAL		FIELD32(0x0000ffff)
+#define CSR12_CFP_MAX_DURATION		FIELD32(0xffff0000)
+
+/*
+ * CSR13: Synchronization configuration register 1.
+ * All units in 1/16 TU.
+ * ATIMW_DURATION: Atim window duration.
+ * CFP_PERIOD: Cfp period, default is 0 TU.
+ */
+#define CSR13				0x0034
+#define CSR13_ATIMW_DURATION		FIELD32(0x0000ffff)
+#define CSR13_CFP_PERIOD		FIELD32(0x00ff0000)
+
+/*
+ * CSR14: Synchronization control register.
+ * TSF_COUNT: Enable tsf auto counting.
+ * TSF_SYNC: Tsf sync, 0: disable, 1: infra, 2: ad-hoc/master mode.
+ * TBCN: Enable tbcn with reload value.
+ * TCFP: Enable tcfp & cfp / cp switching.
+ * TATIMW: Enable tatimw & atim window switching.
+ * BEACON_GEN: Enable beacon generator.
+ * CFP_COUNT_PRELOAD: Cfp count preload value.
+ * TBCM_PRELOAD: Tbcn preload value in units of 64us.
+ */
+#define CSR14				0x0038
+#define CSR14_TSF_COUNT			FIELD32(0x00000001)
+#define CSR14_TSF_SYNC			FIELD32(0x00000006)
+#define CSR14_TBCN			FIELD32(0x00000008)
+#define CSR14_TCFP			FIELD32(0x00000010)
+#define CSR14_TATIMW			FIELD32(0x00000020)
+#define CSR14_BEACON_GEN		FIELD32(0x00000040)
+#define CSR14_CFP_COUNT_PRELOAD		FIELD32(0x0000ff00)
+#define CSR14_TBCM_PRELOAD		FIELD32(0xffff0000)
+
+/*
+ * CSR15: Synchronization status register.
+ * CFP: ASIC is in contention-free period.
+ * ATIMW: ASIC is in ATIM window.
+ * BEACON_SENT: Beacon is send.
+ */
+#define CSR15				0x003c
+#define CSR15_CFP			FIELD32(0x00000001)
+#define CSR15_ATIMW			FIELD32(0x00000002)
+#define CSR15_BEACON_SENT		FIELD32(0x00000004)
+
+/*
+ * CSR16: TSF timer register 0.
+ */
+#define CSR16				0x0040
+#define CSR16_LOW_TSFTIMER		FIELD32(0xffffffff)
+
+/*
+ * CSR17: TSF timer register 1.
+ */
+#define CSR17				0x0044
+#define CSR17_HIGH_TSFTIMER		FIELD32(0xffffffff)
+
+/*
+ * CSR18: IFS timer register 0.
+ * SIFS: Sifs, default is 10 us.
+ * PIFS: Pifs, default is 30 us.
+ */
+#define CSR18				0x0048
+#define CSR18_SIFS			FIELD32(0x0000ffff)
+#define CSR18_PIFS			FIELD32(0xffff0000)
+
+/*
+ * CSR19: IFS timer register 1.
+ * DIFS: Difs, default is 50 us.
+ * EIFS: Eifs, default is 364 us.
+ */
+#define CSR19				0x004c
+#define CSR19_DIFS			FIELD32(0x0000ffff)
+#define CSR19_EIFS			FIELD32(0xffff0000)
+
+/*
+ * CSR20: Wakeup timer register.
+ * DELAY_AFTER_TBCN: Delay after tbcn expired in units of 1/16 TU.
+ * TBCN_BEFORE_WAKEUP: Number of beacon before wakeup.
+ * AUTOWAKE: Enable auto wakeup / sleep mechanism.
+ */
+#define CSR20				0x0050
+#define CSR20_DELAY_AFTER_TBCN		FIELD32(0x0000ffff)
+#define CSR20_TBCN_BEFORE_WAKEUP	FIELD32(0x00ff0000)
+#define CSR20_AUTOWAKE			FIELD32(0x01000000)
+
+/*
+ * CSR21: EEPROM control register.
+ * RELOAD: Write 1 to reload eeprom content.
+ * TYPE_93C46: 1: 93c46, 0:93c66.
+ */
+#define CSR21				0x0054
+#define CSR21_RELOAD			FIELD32(0x00000001)
+#define CSR21_EEPROM_DATA_CLOCK		FIELD32(0x00000002)
+#define CSR21_EEPROM_CHIP_SELECT	FIELD32(0x00000004)
+#define CSR21_EEPROM_DATA_IN		FIELD32(0x00000008)
+#define CSR21_EEPROM_DATA_OUT		FIELD32(0x00000010)
+#define CSR21_TYPE_93C46		FIELD32(0x00000020)
+
+/*
+ * CSR22: CFP control register.
+ * CFP_DURATION_REMAIN: Cfp duration remain, in units of TU.
+ * RELOAD_CFP_DURATION: Write 1 to reload cfp duration remain.
+ */
+#define CSR22				0x0058
+#define CSR22_CFP_DURATION_REMAIN	FIELD32(0x0000ffff)
+#define CSR22_RELOAD_CFP_DURATION	FIELD32(0x00010000)
+
+/*
+ * Transmit related CSRs.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * TXCSR0: TX Control Register.
+ * KICK_TX: Kick tx ring.
+ * KICK_ATIM: Kick atim ring.
+ * KICK_PRIO: Kick priority ring.
+ * ABORT: Abort all transmit related ring operation.
+ */
+#define TXCSR0				0x0060
+#define TXCSR0_KICK_TX			FIELD32(0x00000001)
+#define TXCSR0_KICK_ATIM		FIELD32(0x00000002)
+#define TXCSR0_KICK_PRIO		FIELD32(0x00000004)
+#define TXCSR0_ABORT			FIELD32(0x00000008)
+
+/*
+ * TXCSR1: TX Configuration Register.
+ * ACK_TIMEOUT: Ack timeout, default = sifs + 2*slottime + acktime @ 1mbps.
+ * ACK_CONSUME_TIME: Ack consume time, default = sifs + acktime @ 1mbps.
+ * TSF_OFFSET: Insert tsf offset.
+ * AUTORESPONDER: Enable auto responder which include ack & cts.
+ */
+#define TXCSR1				0x0064
+#define TXCSR1_ACK_TIMEOUT		FIELD32(0x000001ff)
+#define TXCSR1_ACK_CONSUME_TIME		FIELD32(0x0003fe00)
+#define TXCSR1_TSF_OFFSET		FIELD32(0x00fc0000)
+#define TXCSR1_AUTORESPONDER		FIELD32(0x01000000)
+
+/*
+ * TXCSR2: Tx descriptor configuration register.
+ * TXD_SIZE: Tx descriptor size, default is 48.
+ * NUM_TXD: Number of tx entries in ring.
+ * NUM_ATIM: Number of atim entries in ring.
+ * NUM_PRIO: Number of priority entries in ring.
+ */
+#define TXCSR2				0x0068
+#define TXCSR2_TXD_SIZE			FIELD32(0x000000ff)
+#define TXCSR2_NUM_TXD			FIELD32(0x0000ff00)
+#define TXCSR2_NUM_ATIM			FIELD32(0x00ff0000)
+#define TXCSR2_NUM_PRIO			FIELD32(0xff000000)
+
+/*
+ * TXCSR3: TX Ring Base address register.
+ */
+#define TXCSR3				0x006c
+#define TXCSR3_TX_RING_REGISTER		FIELD32(0xffffffff)
+
+/*
+ * TXCSR4: TX Atim Ring Base address register.
+ */
+#define TXCSR4				0x0070
+#define TXCSR4_ATIM_RING_REGISTER	FIELD32(0xffffffff)
+
+/*
+ * TXCSR5: TX Prio Ring Base address register.
+ */
+#define TXCSR5				0x0074
+#define TXCSR5_PRIO_RING_REGISTER	FIELD32(0xffffffff)
+
+/*
+ * TXCSR6: Beacon Base address register.
+ */
+#define TXCSR6				0x0078
+#define TXCSR6_BEACON_RING_REGISTER	FIELD32(0xffffffff)
+
+/*
+ * TXCSR7: Auto responder control register.
+ * AR_POWERMANAGEMENT: Auto responder power management bit.
+ */
+#define TXCSR7				0x007c
+#define TXCSR7_AR_POWERMANAGEMENT	FIELD32(0x00000001)
+
+/*
+ * Receive related CSRs.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * RXCSR0: RX Control Register.
+ * DISABLE_RX: Disable rx engine.
+ * DROP_CRC: Drop crc error.
+ * DROP_PHYSICAL: Drop physical error.
+ * DROP_CONTROL: Drop control frame.
+ * DROP_NOT_TO_ME: Drop not to me unicast frame.
+ * DROP_TODS: Drop frame tods bit is true.
+ * DROP_VERSION_ERROR: Drop version error frame.
+ * PASS_CRC: Pass all packets with crc attached.
+ */
+#define RXCSR0				0x0080
+#define RXCSR0_DISABLE_RX		FIELD32(0x00000001)
+#define RXCSR0_DROP_CRC			FIELD32(0x00000002)
+#define RXCSR0_DROP_PHYSICAL		FIELD32(0x00000004)
+#define RXCSR0_DROP_CONTROL		FIELD32(0x00000008)
+#define RXCSR0_DROP_NOT_TO_ME		FIELD32(0x00000010)
+#define RXCSR0_DROP_TODS		FIELD32(0x00000020)
+#define RXCSR0_DROP_VERSION_ERROR	FIELD32(0x00000040)
+#define RXCSR0_PASS_CRC			FIELD32(0x00000080)
+
+/*
+ * RXCSR1: RX descriptor configuration register.
+ * RXD_SIZE: Rx descriptor size, default is 32b.
+ * NUM_RXD: Number of rx entries in ring.
+ */
+#define RXCSR1				0x0084
+#define RXCSR1_RXD_SIZE			FIELD32(0x000000ff)
+#define RXCSR1_NUM_RXD			FIELD32(0x0000ff00)
+
+/*
+ * RXCSR2: RX Ring base address register.
+ */
+#define RXCSR2				0x0088
+#define RXCSR2_RX_RING_REGISTER		FIELD32(0xffffffff)
+
+/*
+ * RXCSR3: BBP ID register for Rx operation.
+ * BBP_ID#: BBP register # id.
+ * BBP_ID#_VALID: BBP register # id is valid or not.
+ */
+#define RXCSR3				0x0090
+#define RXCSR3_BBP_ID0			FIELD32(0x0000007f)
+#define RXCSR3_BBP_ID0_VALID		FIELD32(0x00000080)
+#define RXCSR3_BBP_ID1			FIELD32(0x00007f00)
+#define RXCSR3_BBP_ID1_VALID		FIELD32(0x00008000)
+#define RXCSR3_BBP_ID2			FIELD32(0x007f0000)
+#define RXCSR3_BBP_ID2_VALID		FIELD32(0x00800000)
+#define RXCSR3_BBP_ID3			FIELD32(0x7f000000)
+#define RXCSR3_BBP_ID3_VALID		FIELD32(0x80000000)
+
+/*
+ * RXCSR4: BBP ID register for Rx operation.
+ * BBP_ID#: BBP register # id.
+ * BBP_ID#_VALID: BBP register # id is valid or not.
+ */
+#define RXCSR4				0x0094
+#define RXCSR4_BBP_ID4			FIELD32(0x0000007f)
+#define RXCSR4_BBP_ID4_VALID		FIELD32(0x00000080)
+#define RXCSR4_BBP_ID5			FIELD32(0x00007f00)
+#define RXCSR4_BBP_ID5_VALID		FIELD32(0x00008000)
+
+/*
+ * ARCSR0: Auto Responder PLCP config register 0.
+ * ARCSR0_AR_BBP_DATA#: Auto responder BBP register # data.
+ * ARCSR0_AR_BBP_ID#: Auto responder BBP register # Id.
+ */
+#define ARCSR0				0x0098
+#define ARCSR0_AR_BBP_DATA0		FIELD32(0x000000ff)
+#define ARCSR0_AR_BBP_ID0		FIELD32(0x0000ff00)
+#define ARCSR0_AR_BBP_DATA1		FIELD32(0x00ff0000)
+#define ARCSR0_AR_BBP_ID1		FIELD32(0xff000000)
+
+/*
+ * ARCSR1: Auto Responder PLCP config register 1.
+ * ARCSR0_AR_BBP_DATA#: Auto responder BBP register # data.
+ * ARCSR0_AR_BBP_ID#: Auto responder BBP register # Id.
+ */
+#define ARCSR1				0x009c
+#define ARCSR1_AR_BBP_DATA2		FIELD32(0x000000ff)
+#define ARCSR1_AR_BBP_ID2		FIELD32(0x0000ff00)
+#define ARCSR1_AR_BBP_DATA3		FIELD32(0x00ff0000)
+#define ARCSR1_AR_BBP_ID3		FIELD32(0xff000000)
+
+/*
+ * Miscellaneous Registers.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * PCICSR: PCI control register.
+ * BIG_ENDIAN: 1: big endian, 0: little endian.
+ * RX_TRESHOLD: Rx threshold in dw to start pci access
+ * 0: 16dw (default), 1: 8dw, 2: 4dw, 3: 32dw.
+ * TX_TRESHOLD: Tx threshold in dw to start pci access
+ * 0: 0dw (default), 1: 1dw, 2: 4dw, 3: forward.
+ * BURST_LENTH: Pci burst length 0: 4dw (default, 1: 8dw, 2: 16dw, 3:32dw.
+ * ENABLE_CLK: Enable clk_run, pci clock can't going down to non-operational.
+ */
+#define PCICSR				0x008c
+#define PCICSR_BIG_ENDIAN		FIELD32(0x00000001)
+#define PCICSR_RX_TRESHOLD		FIELD32(0x00000006)
+#define PCICSR_TX_TRESHOLD		FIELD32(0x00000018)
+#define PCICSR_BURST_LENTH		FIELD32(0x00000060)
+#define PCICSR_ENABLE_CLK		FIELD32(0x00000080)
+
+/*
+ * CNT0: FCS error count.
+ * FCS_ERROR: FCS error count, cleared when read.
+ */
+#define CNT0				0x00a0
+#define CNT0_FCS_ERROR			FIELD32(0x0000ffff)
+
+/*
+ * Statistic Register.
+ * CNT1: PLCP error count.
+ * CNT2: Long error count.
+ * CNT3: CCA false alarm count.
+ * CNT4: Rx FIFO overflow count.
+ * CNT5: Tx FIFO underrun count.
+ */
+#define TIMECSR2			0x00a8
+#define CNT1				0x00ac
+#define CNT2				0x00b0
+#define TIMECSR3			0x00b4
+#define CNT3				0x00b8
+#define CNT4				0x00bc
+#define CNT5				0x00c0
+
+/*
+ * Baseband Control Register.
+ */
+
+/*
+ * PWRCSR0: Power mode configuration register.
+ */
+#define PWRCSR0				0x00c4
+
+/*
+ * Power state transition time registers.
+ */
+#define PSCSR0				0x00c8
+#define PSCSR1				0x00cc
+#define PSCSR2				0x00d0
+#define PSCSR3				0x00d4
+
+/*
+ * PWRCSR1: Manual power control / status register.
+ * Allowed state: 0 deep_sleep, 1: sleep, 2: standby, 3: awake.
+ * SET_STATE: Set state. Write 1 to trigger, self cleared.
+ * BBP_DESIRE_STATE: BBP desired state.
+ * RF_DESIRE_STATE: RF desired state.
+ * BBP_CURR_STATE: BBP current state.
+ * RF_CURR_STATE: RF current state.
+ * PUT_TO_SLEEP: Put to sleep. Write 1 to trigger, self cleared.
+ */
+#define PWRCSR1				0x00d8
+#define PWRCSR1_SET_STATE		FIELD32(0x00000001)
+#define PWRCSR1_BBP_DESIRE_STATE	FIELD32(0x00000006)
+#define PWRCSR1_RF_DESIRE_STATE		FIELD32(0x00000018)
+#define PWRCSR1_BBP_CURR_STATE		FIELD32(0x00000060)
+#define PWRCSR1_RF_CURR_STATE		FIELD32(0x00000180)
+#define PWRCSR1_PUT_TO_SLEEP		FIELD32(0x00000200)
+
+/*
+ * TIMECSR: Timer control register.
+ * US_COUNT: 1 us timer count in units of clock cycles.
+ * US_64_COUNT: 64 us timer count in units of 1 us timer.
+ * BEACON_EXPECT: Beacon expect window.
+ */
+#define TIMECSR				0x00dc
+#define TIMECSR_US_COUNT		FIELD32(0x000000ff)
+#define TIMECSR_US_64_COUNT		FIELD32(0x0000ff00)
+#define TIMECSR_BEACON_EXPECT		FIELD32(0x00070000)
+
+/*
+ * MACCSR0: MAC configuration register 0.
+ */
+#define MACCSR0				0x00e0
+
+
+/*
+ * MACCSR1: MAC configuration register 1.
+ * KICK_RX: Kick one-shot rx in one-shot rx mode.
+ * ONESHOT_RXMODE: Enable one-shot rx mode for debugging.
+ * BBPRX_RESET_MODE: Ralink bbp rx reset mode.
+ * AUTO_TXBBP: Auto tx logic access bbp control register.
+ * AUTO_RXBBP: Auto rx logic access bbp control register.
+ * LOOPBACK: Loopback mode. 0: normal, 1: internal, 2: external, 3:rsvd.
+ * INTERSIL_IF: Intersil if calibration pin.
+ */
+#define MACCSR1				0x00e4
+#define MACCSR1_KICK_RX			FIELD32(0x00000001)
+#define MACCSR1_ONESHOT_RXMODE		FIELD32(0x00000002)
+#define MACCSR1_BBPRX_RESET_MODE	FIELD32(0x00000004)
+#define MACCSR1_AUTO_TXBBP		FIELD32(0x00000008)
+#define MACCSR1_AUTO_RXBBP		FIELD32(0x00000010)
+#define MACCSR1_LOOPBACK		FIELD32(0x00000060)
+#define MACCSR1_INTERSIL_IF		FIELD32(0x00000080)
+
+/*
+ * RALINKCSR: Ralink Rx auto-reset BBCR.
+ * AR_BBP_DATA#: Auto reset BBP register # data.
+ * AR_BBP_ID#: Auto reset BBP register # id.
+ */
+#define RALINKCSR			0x00e8
+#define RALINKCSR_AR_BBP_DATA0		FIELD32(0x000000ff)
+#define RALINKCSR_AR_BBP_ID0		FIELD32(0x0000ff00)
+#define RALINKCSR_AR_BBP_DATA1		FIELD32(0x00ff0000)
+#define RALINKCSR_AR_BBP_ID1		FIELD32(0xff000000)
+
+/*
+ * BCNCSR: Beacon interval control register.
+ * CHANGE: Write one to change beacon interval.
+ * DELTATIME: The delta time value.
+ * NUM_BEACON: Number of beacon according to mode.
+ * MODE: Please refer to asic specs.
+ * PLUS: Plus or minus delta time value.
+ */
+#define BCNCSR				0x00ec
+#define BCNCSR_CHANGE			FIELD32(0x00000001)
+#define BCNCSR_DELTATIME		FIELD32(0x0000001e)
+#define BCNCSR_NUM_BEACON		FIELD32(0x00001fe0)
+#define BCNCSR_MODE			FIELD32(0x00006000)
+#define BCNCSR_PLUS			FIELD32(0x00008000)
+
+/*
+ * BBP / RF / IF Control Register.
+ */
+
+/*
+ * BBPCSR: BBP serial control register.
+ * VALUE: Register value to program into BBP.
+ * REGNUM: Selected BBP register.
+ * BUSY: 1: asic is busy execute BBP programming.
+ * WRITE_CONTROL: 1: write BBP, 0: read BBP.
+ */
+#define BBPCSR				0x00f0
+#define BBPCSR_VALUE			FIELD32(0x000000ff)
+#define BBPCSR_REGNUM			FIELD32(0x00007f00)
+#define BBPCSR_BUSY			FIELD32(0x00008000)
+#define BBPCSR_WRITE_CONTROL		FIELD32(0x00010000)
+
+/*
+ * RFCSR: RF serial control register.
+ * VALUE: Register value + id to program into rf/if.
+ * NUMBER_OF_BITS: Number of bits used in value (i:20, rfmd:22).
+ * IF_SELECT: Chip to program: 0: rf, 1: if.
+ * PLL_LD: Rf pll_ld status.
+ * BUSY: 1: asic is busy execute rf programming.
+ */
+#define RFCSR				0x00f4
+#define RFCSR_VALUE			FIELD32(0x00ffffff)
+#define RFCSR_NUMBER_OF_BITS		FIELD32(0x1f000000)
+#define RFCSR_IF_SELECT			FIELD32(0x20000000)
+#define RFCSR_PLL_LD			FIELD32(0x40000000)
+#define RFCSR_BUSY			FIELD32(0x80000000)
+
+/*
+ * LEDCSR: LED control register.
+ * ON_PERIOD: On period, default 70ms.
+ * OFF_PERIOD: Off period, default 30ms.
+ * LINK: 0: linkoff, 1: linkup.
+ * ACTIVITY: 0: idle, 1: active.
+ */
+#define LEDCSR				0x00f8
+#define LEDCSR_ON_PERIOD		FIELD32(0x000000ff)
+#define LEDCSR_OFF_PERIOD		FIELD32(0x0000ff00)
+#define LEDCSR_LINK			FIELD32(0x00010000)
+#define LEDCSR_ACTIVITY			FIELD32(0x00020000)
+
+/*
+ * ASIC pointer information.
+ * RXPTR: Current RX ring address.
+ * TXPTR: Current Tx ring address.
+ * PRIPTR: Current Priority ring address.
+ * ATIMPTR: Current ATIM ring address.
+ */
+#define RXPTR				0x0100
+#define TXPTR				0x0104
+#define PRIPTR				0x0108
+#define ATIMPTR				0x010c
+
+/*
+ * GPIO and others.
+ */
+
+/*
+ * GPIOCSR: GPIO control register.
+ */
+#define GPIOCSR				0x0120
+#define GPIOCSR_BIT0			FIELD32(0x00000001)
+#define GPIOCSR_BIT1			FIELD32(0x00000002)
+#define GPIOCSR_BIT2			FIELD32(0x00000004)
+#define GPIOCSR_BIT3			FIELD32(0x00000008)
+#define GPIOCSR_BIT4			FIELD32(0x00000010)
+#define GPIOCSR_BIT5			FIELD32(0x00000020)
+#define GPIOCSR_BIT6			FIELD32(0x00000040)
+#define GPIOCSR_BIT7			FIELD32(0x00000080)
+
+/*
+ * BBPPCSR: BBP Pin control register.
+ */
+#define BBPPCSR				0x0124
+
+/*
+ * BCNCSR1: Tx BEACON offset time control register.
+ * PRELOAD: Beacon timer offset in units of usec.
+ */
+#define BCNCSR1				0x0130
+#define BCNCSR1_PRELOAD			FIELD32(0x0000ffff)
+
+/*
+ * MACCSR2: TX_PE to RX_PE turn-around time control register
+ * DELAY: RX_PE low width, in units of pci clock cycle.
+ */
+#define MACCSR2				0x0134
+#define MACCSR2_DELAY			FIELD32(0x000000ff)
+
+/*
+ * ARCSR2: 1 Mbps ACK/CTS PLCP.
+ */
+#define ARCSR2				0x013c
+#define ARCSR2_SIGNAL			FIELD32(0x000000ff)
+#define ARCSR2_SERVICE			FIELD32(0x0000ff00)
+#define ARCSR2_LENGTH_LOW		FIELD32(0x00ff0000)
+#define ARCSR2_LENGTH			FIELD32(0xffff0000)
+
+/*
+ * ARCSR3: 2 Mbps ACK/CTS PLCP.
+ */
+#define ARCSR3				0x0140
+#define ARCSR3_SIGNAL			FIELD32(0x000000ff)
+#define ARCSR3_SERVICE			FIELD32(0x0000ff00)
+#define ARCSR3_LENGTH			FIELD32(0xffff0000)
+
+/*
+ * ARCSR4: 5.5 Mbps ACK/CTS PLCP.
+ */
+#define ARCSR4				0x0144
+#define ARCSR4_SIGNAL			FIELD32(0x000000ff)
+#define ARCSR4_SERVICE			FIELD32(0x0000ff00)
+#define ARCSR4_LENGTH			FIELD32(0xffff0000)
+
+/*
+ * ARCSR5: 11 Mbps ACK/CTS PLCP.
+ */
+#define ARCSR5				0x0148
+#define ARCSR5_SIGNAL			FIELD32(0x000000ff)
+#define ARCSR5_SERVICE			FIELD32(0x0000ff00)
+#define ARCSR5_LENGTH			FIELD32(0xffff0000)
+
+/*
+ * RF registers
+ */
+#define RF1_TUNER			FIELD32(0x00020000)
+#define RF3_TUNER			FIELD32(0x00000100)
+#define RF3_TXPOWER			FIELD32(0x00003e00)
+
+/*
+ * EEPROM content.
+ * The wordsize of the EEPROM is 16 bits.
+ */
+
+/*
+ * HW MAC address.
+ */
+#define EEPROM_MAC_ADDR_0		0x0002
+#define EEPROM_MAC_ADDR_BYTE0		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE1		FIELD16(0xff00)
+#define EEPROM_MAC_ADDR1		0x0003
+#define EEPROM_MAC_ADDR_BYTE2		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE3		FIELD16(0xff00)
+#define EEPROM_MAC_ADDR_2		0x0004
+#define EEPROM_MAC_ADDR_BYTE4		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE5		FIELD16(0xff00)
+
+/*
+ * EEPROM antenna.
+ * ANTENNA_NUM: Number of antenna's.
+ * TX_DEFAULT: Default antenna 0: diversity, 1: A, 2: B.
+ * RX_DEFAULT: Default antenna 0: diversity, 1: A, 2: B.
+ * RF_TYPE: Rf_type of this adapter.
+ * LED_MODE: 0: default, 1: TX/RX activity,2: Single (ignore link), 3: rsvd.
+ * RX_AGCVGC: 0: disable, 1:enable BBP R13 tuning.
+ * HARDWARE_RADIO: 1: Hardware controlled radio. Read GPIO0.
+ */
+#define EEPROM_ANTENNA			0x0b
+#define EEPROM_ANTENNA_NUM		FIELD16(0x0003)
+#define EEPROM_ANTENNA_TX_DEFAULT	FIELD16(0x000c)
+#define EEPROM_ANTENNA_RX_DEFAULT	FIELD16(0x0030)
+#define EEPROM_ANTENNA_RF_TYPE		FIELD16(0x0040)
+#define EEPROM_ANTENNA_LED_MODE		FIELD16(0x0180)
+#define EEPROM_ANTENNA_RX_AGCVGC_TUNING	FIELD16(0x0200)
+#define EEPROM_ANTENNA_HARDWARE_RADIO	FIELD16(0x0400)
+
+/*
+ * EEPROM BBP.
+ */
+#define EEPROM_BBP_START		0x0c
+#define EEPROM_BBP_SIZE			7
+#define EEPROM_BBP_VALUE		FIELD16(0x00ff)
+#define EEPROM_BBP_REG_ID		FIELD16(0xff00)
+
+/*
+ * EEPROM TXPOWER
+ */
+#define EEPROM_TXPOWER_START		0x13
+#define EEPROM_TXPOWER_SIZE		7
+#define EEPROM_TXPOWER_1		FIELD16(0x00ff)
+#define EEPROM_TXPOWER_2		FIELD16(0xff00)
+
+/*
+ * BBP content.
+ * The wordsize of the BBP is 8 bits.
+ */
+
+/*
+ * BBP_R1: TX antenna control
+ */
+#define BBP_R1_TX_ANTENNA		FIELD8(0x03)
+
+/*
+ * BBP_R4: RX antenna control
+ */
+#define BBP_R4_RX_ANTENNA		FIELD8(0x06)
+
+/*
+ * DMA descriptor defines.
+ */
+#define TXD_DESC_SIZE			( 8 * sizeof(struct data_desc) )
+#define RXD_DESC_SIZE			( 8 * sizeof(struct data_desc) )
+
+/*
+ * TX descriptor format for TX, PRIO, ATIM and Beacon Ring.
+ */
+
+/*
+ * Word0
+ */
+#define TXD_W0_OWNER_NIC		FIELD32(0x00000001)
+#define TXD_W0_VALID			FIELD32(0x00000002)
+#define TXD_W0_RESULT			FIELD32(0x0000001c)
+#define TXD_W0_RETRY_COUNT		FIELD32(0x000000e0)
+#define TXD_W0_MORE_FRAG		FIELD32(0x00000100)
+#define TXD_W0_ACK			FIELD32(0x00000200)
+#define TXD_W0_TIMESTAMP		FIELD32(0x00000400)
+#define TXD_W0_RTS			FIELD32(0x00000800)
+#define TXD_W0_IFS			FIELD32(0x00006000)
+#define TXD_W0_RETRY_MODE		FIELD32(0x00008000)
+#define TXD_W0_AGC			FIELD32(0x00ff0000)
+#define TXD_W0_R2			FIELD32(0xff000000)
+
+/*
+ * Word1
+ */
+#define TXD_W1_BUFFER_ADDRESS		FIELD32(0xffffffff)
+
+/*
+ * Word2
+ */
+#define TXD_W2_BUFFER_LENGTH		FIELD32(0x0000ffff)
+#define TXD_W2_DATABYTE_COUNT		FIELD32(0xffff0000)
+
+/*
+ * Word3 & 4: PLCP information
+ */
+#define TXD_W3_PLCP_SIGNAL		FIELD32(0x0000ffff)
+#define TXD_W3_PLCP_SERVICE		FIELD32(0xffff0000)
+#define TXD_W4_PLCP_LENGTH_LOW		FIELD32(0x0000ffff)
+#define TXD_W4_PLCP_LENGTH_HIGH		FIELD32(0xffff0000)
+
+/*
+ * Word5
+ */
+#define TXD_W5_BBCR4			FIELD32(0x0000ffff)
+#define TXD_W5_AGC_REG			FIELD32(0x007f0000)
+#define TXD_W5_AGC_REG_VALID		FIELD32(0x00800000)
+#define TXD_W5_XXX_REG			FIELD32(0x7f000000)
+#define TXD_W5_XXX_REG_VALID		FIELD32(0x80000000)
+
+/*
+ * Word6
+ */
+#define TXD_W6_SK_BUFF			FIELD32(0xffffffff)
+
+/*
+ * Word7
+ */
+#define TXD_W7_RESERVED			FIELD32(0xffffffff)
+
+/*
+ * RX descriptor format for RX Ring.
+ */
+
+/*
+ * Word0
+ */
+#define RXD_W0_OWNER_NIC		FIELD32(0x00000001)
+#define RXD_W0_UNICAST_TO_ME		FIELD32(0x00000002)
+#define RXD_W0_MULTICAST		FIELD32(0x00000004)
+#define RXD_W0_BROADCAST		FIELD32(0x00000008)
+#define RXD_W0_MY_BSS			FIELD32(0x00000010)
+#define RXD_W0_CRC			FIELD32(0x00000020)
+#define RXD_W0_PHYSICAL_ERROR		FIELD32(0x00000080)
+#define RXD_W0_DATABYTE_COUNT		FIELD32(0xffff0000)
+
+/*
+ * Word1
+ */
+#define RXD_W1_BUFFER_ADDRESS		FIELD32(0xffffffff)
+
+/*
+ * Word2
+ */
+#define RXD_W2_BUFFER_LENGTH		FIELD32(0x0000ffff)
+#define RXD_W2_SIGNAL			FIELD32(0x00ff0000)
+#define RXD_W2_RSSI			FIELD32(0xff000000)
+
+/*
+ * Word3
+ */
+#define RXD_W3_BBR2			FIELD32(0x000000ff)
+#define RXD_W3_BBR3			FIELD32(0x0000ff00)
+#define RXD_W3_BBR4			FIELD32(0x00ff0000)
+#define RXD_W3_BBR5			FIELD32(0xff000000)
+
+/*
+ * Word4
+ */
+#define RXD_W4_RX_END_TIME		FIELD32(0xffffffff)
+
+/*
+ * Word5 & 6 & 7: Reserved
+ */
+#define RXD_W5_RESERVED			FIELD32(0xffffffff)
+#define RXD_W6_RESERVED			FIELD32(0xffffffff)
+#define RXD_W7_RESERVED			FIELD32(0xffffffff)
+
+/*
+ * Macro's for converting txpower from EEPROM to dscape value
+ * and from dscape value to register value.
+ * NOTE: Logics in rt2400pci for txpower are reversed
+ * compared to the other rt2x00 drivers. A higher txpower
+ * value means that the txpower must be lowered. This is
+ * important when converting the value coming from the
+ * dscape stack to the rt2400 acceptable value.
+ */
+#define MIN_TXPOWER	31
+#define MAX_TXPOWER	62
+#define DEFAULT_TXPOWER	39
+
+#define TXPOWER_FROM_DEV(__txpower)					\
+({									\
+	((__txpower) > MAX_TXPOWER) ? DEFAULT_TXPOWER - MIN_TXPOWER :	\
+	((__txpower) < MIN_TXPOWER) ? DEFAULT_TXPOWER - MIN_TXPOWER :	\
+	(((__txpower) - MAX_TXPOWER) + MIN_TXPOWER);			\
+})
+
+#define TXPOWER_TO_DEV(__txpower)			\
+({							\
+	(__txpower) += MIN_TXPOWER;			\
+	((__txpower) <= MIN_TXPOWER) ? MAX_TXPOWER :	\
+	(((__txpower) >= MAX_TXPOWER) ? MIN_TXPOWER :	\
+	(MAX_TXPOWER - ((__txpower) - MIN_TXPOWER)));	\
+})
+
+#endif /* RT2400PCI_H */
diff --git a/package/rt2x00/src/rt2500pci.c b/package/rt2x00/src/rt2500pci.c
new file mode 100644
index 0000000..61d7e74
--- /dev/null
+++ b/package/rt2x00/src/rt2500pci.c
@@ -0,0 +1,1907 @@
+/*
+	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: rt2500pci
+	Abstract: rt2500pci device specific routines.
+	Supported chipsets: RT2560.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2500pci"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/eeprom_93cx6.h>
+
+#include <asm/io.h>
+
+#include "rt2x00.h"
+#include "rt2x00pci.h"
+#include "rt2500pci.h"
+
+/*
+ * Register access.
+ * All access to the CSR registers will go through the methods
+ * rt2x00pci_register_read and rt2x00pci_register_write.
+ * BBP and RF register require indirect register access,
+ * and use the CSR registers BBPCSR and RFCSR to achieve this.
+ * These indirect registers work with busy bits,
+ * and we will try maximal REGISTER_BUSY_COUNT times to access
+ * the register while taking a REGISTER_BUSY_DELAY us delay
+ * between each attampt. When the busy bit is still set at that time,
+ * the access attempt is considered to have failed,
+ * and we will print an error.
+ */
+static u32 rt2500pci_bbp_check(const struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+	unsigned int i;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2x00pci_register_read(rt2x00dev, BBPCSR, &reg);
+		if (!rt2x00_get_field32(reg, BBPCSR_BUSY))
+			break;
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	return reg;
+}
+
+static void rt2500pci_bbp_write(const struct rt2x00_dev *rt2x00dev,
+	const u8 reg_id, const u8 value)
+{
+	u32 reg;
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt2500pci_bbp_check(rt2x00dev);
+	if (rt2x00_get_field32(reg, BBPCSR_BUSY)) {
+		ERROR(rt2x00dev, "BBPCSR register busy. Write failed.\n");
+		return;
+	}
+
+	/*
+	 * Write the data into the BBP.
+	 */
+	reg = 0;
+	rt2x00_set_field32(&reg, BBPCSR_VALUE, value);
+	rt2x00_set_field32(&reg, BBPCSR_REGNUM, reg_id);
+	rt2x00_set_field32(&reg, BBPCSR_BUSY, 1);
+	rt2x00_set_field32(&reg, BBPCSR_WRITE_CONTROL, 1);
+
+	rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
+}
+
+static void rt2500pci_bbp_read(const struct rt2x00_dev *rt2x00dev,
+	const u8 reg_id, u8 *value)
+{
+	u32 reg;
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt2500pci_bbp_check(rt2x00dev);
+	if (rt2x00_get_field32(reg, BBPCSR_BUSY)) {
+		ERROR(rt2x00dev, "BBPCSR register busy. Read failed.\n");
+		return;
+	}
+
+	/*
+	 * Write the request into the BBP.
+	 */
+	reg = 0;
+	rt2x00_set_field32(&reg, BBPCSR_REGNUM, reg_id);
+	rt2x00_set_field32(&reg, BBPCSR_BUSY, 1);
+	rt2x00_set_field32(&reg, BBPCSR_WRITE_CONTROL, 0);
+
+	rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt2500pci_bbp_check(rt2x00dev);
+	if (rt2x00_get_field32(reg, BBPCSR_BUSY)) {
+		ERROR(rt2x00dev, "BBPCSR register busy. Read failed.\n");
+		*value = 0xff;
+		return;
+	}
+
+	*value = rt2x00_get_field32(reg, BBPCSR_VALUE);
+}
+
+static void rt2500pci_rf_write(const struct rt2x00_dev *rt2x00dev,
+	const u32 value)
+{
+	u32 reg;
+	unsigned int i;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2x00pci_register_read(rt2x00dev, RFCSR, &reg);
+		if (!rt2x00_get_field32(reg, RFCSR_BUSY))
+			goto rf_write;
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	ERROR(rt2x00dev, "RFCSR register busy. Write failed.\n");
+	return;
+
+rf_write:
+	reg = 0;
+	rt2x00_set_field32(&reg, RFCSR_VALUE, value);
+	rt2x00_set_field32(&reg, RFCSR_NUMBER_OF_BITS, 20);
+	rt2x00_set_field32(&reg, RFCSR_IF_SELECT, 0);
+	rt2x00_set_field32(&reg, RFCSR_BUSY, 1);
+
+	rt2x00pci_register_write(rt2x00dev, RFCSR, reg);
+}
+
+static void rt2500pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
+{
+	struct rt2x00_dev *rt2x00dev = eeprom->data;
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, CSR21, &reg);
+
+	eeprom->reg_data_in = !!rt2x00_get_field32(reg,
+		CSR21_EEPROM_DATA_IN);
+	eeprom->reg_data_out = !!rt2x00_get_field32(reg,
+		CSR21_EEPROM_DATA_OUT);
+	eeprom->reg_data_clock = !!rt2x00_get_field32(reg,
+		CSR21_EEPROM_DATA_CLOCK);
+	eeprom->reg_chip_select = !!rt2x00_get_field32(reg,
+		CSR21_EEPROM_CHIP_SELECT);
+}
+
+static void rt2500pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
+{
+	struct rt2x00_dev *rt2x00dev = eeprom->data;
+	u32 reg = 0;
+
+	rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_IN,
+		!!eeprom->reg_data_in);
+	rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_OUT,
+		!!eeprom->reg_data_out);
+	rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_CLOCK,
+		!!eeprom->reg_data_clock);
+	rt2x00_set_field32(&reg, CSR21_EEPROM_CHIP_SELECT,
+		!!eeprom->reg_chip_select);
+
+	rt2x00pci_register_write(rt2x00dev, CSR21, reg);
+}
+
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+#define CSR_OFFSET(__word)	( CSR_REG_BASE + ((__word) * sizeof(u32)) )
+
+static void rt2500pci_read_csr(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00pci_register_read(rt2x00dev, CSR_OFFSET(word), data);
+}
+
+static void rt2500pci_write_csr(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00pci_register_write(rt2x00dev, CSR_OFFSET(word), *((u32*)data));
+}
+
+static void rt2500pci_read_eeprom(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00_eeprom_read(rt2x00dev, word, data);
+}
+
+static void rt2500pci_write_eeprom(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00_eeprom_write(rt2x00dev, word, *((u16*)data));
+}
+
+static void rt2500pci_read_bbp(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2500pci_bbp_read(rt2x00dev, word, data);
+}
+
+static void rt2500pci_write_bbp(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2500pci_bbp_write(rt2x00dev, word, *((u8*)data));
+}
+
+static const struct rt2x00debug rt2500pci_rt2x00debug = {
+	.owner 		= THIS_MODULE,
+	.reg_csr	= {
+		.read		= rt2500pci_read_csr,
+		.write		= rt2500pci_write_csr,
+		.word_size	= sizeof(u32),
+		.word_count	= CSR_REG_SIZE / sizeof(u32),
+	},
+	.reg_eeprom	= {
+		.read		= rt2500pci_read_eeprom,
+		.write		= rt2500pci_write_eeprom,
+		.word_size	= sizeof(u16),
+		.word_count	= EEPROM_SIZE / sizeof(u16),
+	},
+	.reg_bbp	= {
+		.read		= rt2500pci_read_bbp,
+		.write		= rt2500pci_write_bbp,
+		.word_size	= sizeof(u8),
+		.word_count	= BBP_SIZE / sizeof(u8),
+	},
+};
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+
+#ifdef CONFIG_RT2500PCI_RFKILL
+static int rt2500pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, GPIOCSR, &reg);
+	return rt2x00_get_field32(reg, GPIOCSR_BIT0);
+}
+#endif /* CONFIG_RT2400PCI_RFKILL */
+
+/*
+ * Configuration handlers.
+ */
+static void rt2500pci_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
+{
+	u32 reg[2];
+
+	memset(&reg, 0, sizeof(reg));
+	memcpy(&reg, bssid, ETH_ALEN);
+
+	/*
+	 * The BSSID is passed to us as an array of bytes,
+	 * that array is little endian, so no need for byte ordering.
+	 */
+	rt2x00pci_register_multiwrite(rt2x00dev, CSR5, &reg, sizeof(reg));
+}
+
+static void rt2500pci_config_promisc(struct rt2x00_dev *rt2x00dev,
+	const int promisc)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
+	rt2x00_set_field32(&reg, RXCSR0_DROP_NOT_TO_ME, !promisc);
+	rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
+}
+
+static void rt2500pci_config_type(struct rt2x00_dev *rt2x00dev,
+	const int type)
+{
+	u32 reg;
+
+	rt2x00pci_register_write(rt2x00dev, CSR14, 0);
+
+	/*
+	 * Apply hardware packet filter.
+	 */
+	rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
+
+	if (!is_monitor_present(&rt2x00dev->interface) &&
+	    (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_STA))
+		rt2x00_set_field32(&reg, RXCSR0_DROP_TODS, 1);
+	else
+		rt2x00_set_field32(&reg, RXCSR0_DROP_TODS, 0);
+
+	rt2x00_set_field32(&reg, RXCSR0_DROP_CRC, 1);
+	if (is_monitor_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL, 0);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL, 0);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 0);
+	} else {
+		rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL, 1);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL, 1);
+		rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 1);
+	}
+
+	rt2x00_set_field32(&reg, RXCSR0_DROP_MCAST, 0);
+	rt2x00_set_field32(&reg, RXCSR0_DROP_BCAST, 0);
+
+	rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
+
+	/*
+	 * Enable beacon config
+	 */
+	rt2x00pci_register_read(rt2x00dev, BCNCSR1, &reg);
+	rt2x00_set_field32(&reg, BCNCSR1_PRELOAD,
+		PREAMBLE + get_duration(IEEE80211_HEADER, 2));
+	rt2x00_set_field32(&reg, BCNCSR1_BEACON_CWMIN,
+		rt2x00_get_ring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON)
+			->tx_params.cw_min);
+	rt2x00pci_register_write(rt2x00dev, BCNCSR1, reg);
+
+	/*
+	 * Enable synchronisation.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
+	if (is_interface_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, CSR14_TSF_COUNT, 1);
+		rt2x00_set_field32(&reg, CSR14_TBCN, 1);
+	}
+
+	rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 0);
+	if (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_AP)
+		rt2x00_set_field32(&reg, CSR14_TSF_SYNC, 2);
+	else if (type == IEEE80211_IF_TYPE_STA)
+		rt2x00_set_field32(&reg, CSR14_TSF_SYNC, 1);
+	else if (is_monitor_present(&rt2x00dev->interface) &&
+		 !is_interface_present(&rt2x00dev->interface))
+		rt2x00_set_field32(&reg, CSR14_TSF_SYNC, 0);
+
+	rt2x00pci_register_write(rt2x00dev, CSR14, reg);
+}
+
+static void rt2500pci_config_channel(struct rt2x00_dev *rt2x00dev,
+	const int value, const int channel, const int txpower)
+{
+	u32 rf1 = rt2x00dev->rf1;
+	u32 rf2 = value;
+	u32 rf3 = rt2x00dev->rf3;
+	u32 rf4 = rt2x00dev->rf4;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF2525) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF2525E))
+		rf2 |= 0x00080000;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF2525E) && channel == 14)
+		rf4 |= 0x00000010;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
+		if (channel < 14) {
+			rf1 = 0x00022020;
+			rf4 = 0x00000a0b;
+		} else if (channel == 14) {
+			rf1 = 0x00022010;
+			rf4 = 0x00000a1b;
+		} else if (channel < 64) {
+			rf1 = 0x00022010;
+			rf4 = 0x00000a1f;
+		} else if (channel < 140) {
+			rf1 = 0x00022010;
+			rf4 = 0x00000a0f;
+		} else if (channel < 161) {
+			rf1 = 0x00022020;
+			rf4 = 0x00000a07;
+		}
+	}
+
+	/*
+	 * Set TXpower.
+	 */
+	rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
+
+	/*
+	 * Switch on tuning bits.
+	 * For RT2523 devices we do not need to update the R1 register.
+	 */
+	if (!rt2x00_rf(&rt2x00dev->chip, RF2523))
+		rt2x00_set_field32(&rf1, RF1_TUNER, 1);
+	rt2x00_set_field32(&rf3, RF3_TUNER, 1);
+
+	/*
+	 * For RT2525 we should first set the channel to half band higher.
+	 */
+	if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
+		static const u32 vals[] = {
+			0x00080cbe, 0x00080d02, 0x00080d06, 0x00080d0a,
+			0x00080d0e, 0x00080d12, 0x00080d16, 0x00080d1a,
+			0x00080d1e, 0x00080d22, 0x00080d26, 0x00080d2a,
+			0x00080d2e, 0x00080d3a
+		};
+
+		rt2500pci_rf_write(rt2x00dev, rf1);
+		rt2500pci_rf_write(rt2x00dev, vals[channel - 1]);
+		rt2500pci_rf_write(rt2x00dev, rf3);
+		if (rf4)
+			rt2500pci_rf_write(rt2x00dev, rf4);
+	}
+
+	rt2500pci_rf_write(rt2x00dev, rf1);
+	rt2500pci_rf_write(rt2x00dev, rf2);
+	rt2500pci_rf_write(rt2x00dev, rf3);
+	if (rf4)
+		rt2500pci_rf_write(rt2x00dev, rf4);
+
+	/*
+	 * Channel 14 requires the Japan filter bit to be set.
+	 */
+	rt2500pci_bbp_write(rt2x00dev, 70, (channel == 14) ? 0x4e : 0x46);
+
+	msleep(1);
+
+	/*
+	 * Switch off tuning bits.
+	 * For RT2523 devices we do not need to update the R1 register.
+	 */
+	rt2x00_set_field32(&rf1, RF1_TUNER, 0);
+	rt2x00_set_field32(&rf3, RF3_TUNER, 0);
+
+
+	if (!rt2x00_rf(&rt2x00dev->chip, RF2523))
+		rt2500pci_rf_write(rt2x00dev, rf1);
+
+	rt2500pci_rf_write(rt2x00dev, rf3);
+
+	/*
+	 * Update rf fields
+	 */
+	rt2x00dev->rf1 = rf1;
+	rt2x00dev->rf2 = rf2;
+	rt2x00dev->rf3 = rf3;
+	rt2x00dev->rf4 = rf4;
+	rt2x00dev->tx_power = txpower;
+
+	/*
+	 * Clear false CRC during channel switch.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CNT0, &rf1);
+}
+
+static void rt2500pci_config_txpower(struct rt2x00_dev *rt2x00dev,
+	const int txpower)
+{
+	rt2x00_set_field32(&rt2x00dev->rf3, RF3_TXPOWER,
+		TXPOWER_TO_DEV(txpower));
+	rt2500pci_rf_write(rt2x00dev, rt2x00dev->rf3);
+
+}
+
+static void rt2500pci_config_antenna(struct rt2x00_dev *rt2x00dev,
+	const int antenna_tx, const int antenna_rx)
+{
+	u32 reg;
+	u8 r14;
+	u8 r2;
+
+	rt2x00pci_register_read(rt2x00dev, BBPCSR1, &reg);
+	rt2500pci_bbp_read(rt2x00dev, 14, &r14);
+	rt2500pci_bbp_read(rt2x00dev, 2, &r2);
+
+	/*
+	 * Configure the TX antenna.
+	 */
+	if (antenna_tx == ANTENNA_DIVERSITY) {
+		rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
+		rt2x00_set_field32(&reg, BBPCSR1_CCK, 2);
+		rt2x00_set_field32(&reg, BBPCSR1_OFDM, 2);
+	} else if (antenna_tx == ANTENNA_A) {
+		rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
+		rt2x00_set_field32(&reg, BBPCSR1_CCK, 0);
+		rt2x00_set_field32(&reg, BBPCSR1_OFDM, 0);
+	} else if (antenna_tx == ANTENNA_B) {
+		rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
+		rt2x00_set_field32(&reg, BBPCSR1_CCK, 2);
+		rt2x00_set_field32(&reg, BBPCSR1_OFDM, 2);
+	}
+
+	/*
+	 * Configure the RX antenna.
+	 */
+	if (antenna_rx == ANTENNA_DIVERSITY)
+		rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
+	else if (antenna_rx == ANTENNA_A)
+		rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
+	else if (antenna_rx == ANTENNA_B)
+		rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
+
+	/*
+	 * RT2525E and RT5222 need to flip TX I/Q
+	 */
+	if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF5222)) {
+		rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
+		rt2x00_set_field32(&reg, BBPCSR1_CCK_FLIP, 1);
+		rt2x00_set_field32(&reg, BBPCSR1_OFDM_FLIP, 1);
+
+		/*
+		 * RT2525E does not need RX I/Q Flip.
+		 */
+		if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
+			rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
+	} else {
+		rt2x00_set_field32(&reg, BBPCSR1_CCK_FLIP, 0);
+		rt2x00_set_field32(&reg, BBPCSR1_OFDM_FLIP, 0);
+	}
+
+	rt2x00pci_register_write(rt2x00dev, BBPCSR1, reg);
+	rt2500pci_bbp_write(rt2x00dev, 14, r14);
+	rt2500pci_bbp_write(rt2x00dev, 2, r2);
+}
+
+static void rt2500pci_config_duration(struct rt2x00_dev *rt2x00dev,
+	const int short_slot_time, const int beacon_int)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
+	rt2x00_set_field32(&reg, CSR11_SLOT_TIME,
+		short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME);
+	rt2x00pci_register_write(rt2x00dev, CSR11, reg);
+
+	rt2x00pci_register_read(rt2x00dev, CSR18, &reg);
+	rt2x00_set_field32(&reg, CSR18_SIFS, SIFS);
+	rt2x00_set_field32(&reg, CSR18_PIFS,
+		short_slot_time ? SHORT_PIFS : PIFS);
+	rt2x00pci_register_write(rt2x00dev, CSR18, reg);
+
+	rt2x00pci_register_read(rt2x00dev, CSR19, &reg);
+	rt2x00_set_field32(&reg, CSR19_DIFS,
+		short_slot_time ? SHORT_DIFS : DIFS);
+	rt2x00_set_field32(&reg, CSR19_EIFS, EIFS);
+	rt2x00pci_register_write(rt2x00dev, CSR19, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR1, &reg);
+	rt2x00_set_field32(&reg, TXCSR1_TSF_OFFSET, IEEE80211_HEADER);
+	rt2x00_set_field32(&reg, TXCSR1_AUTORESPONDER, 1);
+	rt2x00pci_register_write(rt2x00dev, TXCSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, CSR12, &reg);
+	rt2x00_set_field32(&reg, CSR12_BEACON_INTERVAL, beacon_int * 16);
+	rt2x00_set_field32(&reg, CSR12_CFP_MAX_DURATION, beacon_int * 16);
+	rt2x00pci_register_write(rt2x00dev, CSR12, reg);
+}
+
+static void rt2500pci_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
+{
+	struct ieee80211_conf *conf = &rt2x00dev->hw->conf;
+	u32 reg;
+	u32 preamble;
+	u16 value;
+
+	preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE)
+		? SHORT_PREAMBLE : PREAMBLE;
+
+	reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE;
+	rt2x00pci_register_write(rt2x00dev, ARCSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR1, &reg);
+	value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
+		 SHORT_DIFS :  DIFS) +
+		PLCP + preamble + get_duration(ACK_SIZE, 10);
+	rt2x00_set_field32(&reg, TXCSR1_ACK_TIMEOUT, value);
+	value = SIFS + PLCP + preamble + get_duration(ACK_SIZE, 10);
+	rt2x00_set_field32(&reg, TXCSR1_ACK_CONSUME_TIME, value);
+	rt2x00pci_register_write(rt2x00dev, TXCSR1, reg);
+
+	preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE) ? 0x08 : 0x00;
+
+	rt2x00pci_register_read(rt2x00dev, ARCSR2, &reg);
+	rt2x00_set_field32(&reg, ARCSR2_SIGNAL, 0x00 | preamble);
+	rt2x00_set_field32(&reg, ARCSR2_SERVICE, 0x04);
+	rt2x00_set_field32(&reg, ARCSR2_LENGTH, get_duration(ACK_SIZE, 10));
+	rt2x00pci_register_write(rt2x00dev, ARCSR2, reg);
+
+	rt2x00pci_register_read(rt2x00dev, ARCSR3, &reg);
+	rt2x00_set_field32(&reg, ARCSR3_SIGNAL, 0x01 | preamble);
+	rt2x00_set_field32(&reg, ARCSR3_SERVICE, 0x04);
+	rt2x00_set_field32(&reg, ARCSR2_LENGTH, get_duration(ACK_SIZE, 20));
+	rt2x00pci_register_write(rt2x00dev, ARCSR3, reg);
+
+	rt2x00pci_register_read(rt2x00dev, ARCSR4, &reg);
+	rt2x00_set_field32(&reg, ARCSR4_SIGNAL, 0x02 | preamble);
+	rt2x00_set_field32(&reg, ARCSR4_SERVICE, 0x04);
+	rt2x00_set_field32(&reg, ARCSR2_LENGTH, get_duration(ACK_SIZE, 55));
+	rt2x00pci_register_write(rt2x00dev, ARCSR4, reg);
+
+	rt2x00pci_register_read(rt2x00dev, ARCSR5, &reg);
+	rt2x00_set_field32(&reg, ARCSR5_SIGNAL, 0x03 | preamble);
+	rt2x00_set_field32(&reg, ARCSR5_SERVICE, 0x84);
+	rt2x00_set_field32(&reg, ARCSR2_LENGTH, get_duration(ACK_SIZE, 110));
+	rt2x00pci_register_write(rt2x00dev, ARCSR5, reg);
+}
+
+static void rt2500pci_config_phymode(struct rt2x00_dev *rt2x00dev,
+	const int phymode)
+{
+	struct ieee80211_hw_mode *mode;
+	struct ieee80211_rate *rate;
+
+	if (phymode == MODE_IEEE80211A)
+		rt2x00dev->curr_hwmode = HWMODE_A;
+	else if (phymode == MODE_IEEE80211B)
+		rt2x00dev->curr_hwmode = HWMODE_B;
+	else
+		rt2x00dev->curr_hwmode = HWMODE_G;
+
+	mode = &rt2x00dev->hwmodes[rt2x00dev->curr_hwmode];
+	rate = &mode->rates[mode->num_rates - 1];
+
+	rt2500pci_config_rate(rt2x00dev, rate->val2);
+}
+
+static void rt2500pci_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr)
+{
+	u32 reg[2];
+
+	memset(&reg, 0, sizeof(reg));
+	memcpy(&reg, addr, ETH_ALEN);
+
+	/*
+	 * The MAC address is passed to us as an array of bytes,
+	 * that array is little endian, so no need for byte ordering.
+	 */
+	rt2x00pci_register_multiwrite(rt2x00dev, CSR3, &reg, sizeof(reg));
+}
+
+/*
+ * LED functions.
+ */
+static void rt2500pci_enable_led(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, LEDCSR, &reg);
+
+	rt2x00_set_field32(&reg, LEDCSR_ON_PERIOD, 70);
+	rt2x00_set_field32(&reg, LEDCSR_OFF_PERIOD, 30);
+
+	if (rt2x00dev->led_mode == LED_MODE_TXRX_ACTIVITY) {
+		rt2x00_set_field32(&reg, LEDCSR_LINK, 1);
+		rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, 0);
+	} else if (rt2x00dev->led_mode == LED_MODE_ASUS) {
+		rt2x00_set_field32(&reg, LEDCSR_LINK, 0);
+		rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, 1);
+	} else {
+		rt2x00_set_field32(&reg, LEDCSR_LINK, 1);
+		rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, 1);
+	}
+
+	rt2x00pci_register_write(rt2x00dev, LEDCSR, reg);
+}
+
+static void rt2500pci_disable_led(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, LEDCSR, &reg);
+	rt2x00_set_field32(&reg, LEDCSR_LINK, 0);
+	rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, 0);
+	rt2x00pci_register_write(rt2x00dev, LEDCSR, reg);
+}
+
+/*
+ * Link tuning
+ */
+static void rt2500pci_link_tuner(struct rt2x00_dev *rt2x00dev, int rssi)
+{
+	u32 reg;
+	u8 r17;
+
+	/*
+	 * To prevent collisions with MAC ASIC on chipsets
+	 * up to version C the link tuning should halt after 20
+	 * seconds.
+	 */
+	if (rt2x00_rev(&rt2x00dev->chip) < RT2560_VERSION_D &&
+	    rt2x00dev->link.count > 20)
+		return;
+
+	rt2500pci_bbp_read(rt2x00dev, 17, &r17);
+
+	/*
+	 * Chipset versions C and lower should directly continue
+	 * to the dynamic CCA tuning.
+	 */
+	if (rt2x00_rev(&rt2x00dev->chip) < RT2560_VERSION_D)
+		goto dynamic_cca_tune;
+
+	/*
+	 * A too low RSSI will cause too much false CCA which will
+	 * then corrupt the R17 tuning. To remidy this the tuning should
+	 * be stopped (While making sure the R17 value will not exceed limits)
+	 */
+	if (rssi < -80 && rt2x00dev->link.count > 20) {
+		if (r17 >= 0x41) {
+			r17 = rt2x00dev->link.curr_noise;
+			rt2500pci_bbp_write(rt2x00dev, 17, r17);
+		}
+		return;
+	}
+
+	/*
+	 * Special big-R17 for short distance
+	 */
+	if (rssi >= -58) {
+		if (r17 != 0x50)
+			rt2500pci_bbp_write(rt2x00dev, 17, 0x50);
+		return;
+	}
+
+	/*
+	 * Special mid-R17 for middle distance
+	 */
+	if (rssi >= -74) {
+		if (r17 != 0x41)
+			rt2500pci_bbp_write(rt2x00dev, 17, 0x41);
+		return;
+	}
+
+	/*
+	 * Leave short or middle distance condition, restore r17
+	 * to the dynamic tuning range.
+	 */
+	if (r17 >= 0x41) {
+		rt2500pci_bbp_write(rt2x00dev, 17, rt2x00dev->link.curr_noise);
+		return;
+	}
+
+dynamic_cca_tune:
+
+	/*
+	 * R17 is inside the dynamic tuning range,
+	 * start tuning the link based on the false cca counter.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CNT3, &reg);
+	rt2x00dev->link.false_cca = rt2x00_get_field32(reg, CNT3_FALSE_CCA);
+
+	if (rt2x00dev->link.false_cca > 512 && r17 < 0x40) {
+		rt2500pci_bbp_write(rt2x00dev, 17, ++r17);
+		rt2x00dev->link.curr_noise = r17;
+	} else if (rt2x00dev->link.false_cca < 100 && r17 > 0x32) {
+		rt2500pci_bbp_write(rt2x00dev, 17, --r17);
+		rt2x00dev->link.curr_noise = r17;
+	}
+}
+
+/*
+ * Initialization functions.
+ */
+static void rt2500pci_init_rxring(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_desc *rxd;
+	unsigned int i;
+	u32 word;
+
+	memset(rt2x00dev->rx->data_addr, 0x00,
+		rt2x00_get_ring_size(rt2x00dev->rx));
+
+	for (i = 0; i < rt2x00dev->rx->stats.limit; i++) {
+		rxd = rt2x00dev->rx->entry[i].priv;
+
+		rt2x00_desc_read(rxd, 1, &word);
+		rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS,
+			rt2x00dev->rx->entry[i].data_dma);
+		rt2x00_desc_write(rxd, 1, word);
+
+		rt2x00_desc_read(rxd, 0, &word);
+		rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
+		rt2x00_desc_write(rxd, 0, word);
+	}
+
+	rt2x00_ring_index_clear(rt2x00dev->rx);
+}
+
+static void rt2500pci_init_txring(struct rt2x00_dev *rt2x00dev,
+	const int queue)
+{
+	struct data_ring *ring = rt2x00_get_ring(rt2x00dev, queue);
+	struct data_desc *txd;
+	unsigned int i;
+	u32 word;
+
+	memset(ring->data_addr, 0x00, rt2x00_get_ring_size(ring));
+
+	for (i = 0; i < ring->stats.limit; i++) {
+		txd = ring->entry[i].priv;
+
+		rt2x00_desc_read(txd, 1, &word);
+		rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS,
+			ring->entry[i].data_dma);
+		rt2x00_desc_write(txd, 1, word);
+
+		rt2x00_desc_read(txd, 0, &word);
+		rt2x00_set_field32(&word, TXD_W0_VALID, 0);
+		rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
+		rt2x00_desc_write(txd, 0, word);
+	}
+
+	rt2x00_ring_index_clear(ring);
+}
+
+static int rt2500pci_init_rings(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	/*
+	 * Initialize rings.
+	 */
+	rt2500pci_init_rxring(rt2x00dev);
+	rt2500pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA0);
+	rt2500pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA1);
+	rt2500pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_AFTER_BEACON);
+	rt2500pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
+
+	/*
+	 * Initialize registers.
+	 */
+	rt2x00pci_register_read(rt2x00dev, TXCSR2, &reg);
+	rt2x00_set_field32(&reg, TXCSR2_TXD_SIZE,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].desc_size);
+	rt2x00_set_field32(&reg, TXCSR2_NUM_TXD,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].stats.limit);
+	rt2x00_set_field32(&reg, TXCSR2_NUM_ATIM,
+		rt2x00dev->bcn[1].stats.limit);
+	rt2x00_set_field32(&reg, TXCSR2_NUM_PRIO,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].stats.limit);
+	rt2x00pci_register_write(rt2x00dev, TXCSR2, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR3, &reg);
+	rt2x00_set_field32(&reg, TXCSR3_TX_RING_REGISTER,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].data_dma);
+	rt2x00pci_register_write(rt2x00dev, TXCSR3, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR5, &reg);
+	rt2x00_set_field32(&reg, TXCSR5_PRIO_RING_REGISTER,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].data_dma);
+	rt2x00pci_register_write(rt2x00dev, TXCSR5, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR4, &reg);
+	rt2x00_set_field32(&reg, TXCSR4_ATIM_RING_REGISTER,
+		rt2x00dev->bcn[1].data_dma);
+	rt2x00pci_register_write(rt2x00dev, TXCSR4, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR6, &reg);
+	rt2x00_set_field32(&reg, TXCSR6_BEACON_RING_REGISTER,
+		rt2x00dev->bcn[0].data_dma);
+	rt2x00pci_register_write(rt2x00dev, TXCSR6, reg);
+
+	rt2x00pci_register_read(rt2x00dev, RXCSR1, &reg);
+	rt2x00_set_field32(&reg, RXCSR1_RXD_SIZE,
+		rt2x00dev->rx->desc_size);
+	rt2x00_set_field32(&reg, RXCSR1_NUM_RXD,
+		rt2x00dev->rx->stats.limit);
+	rt2x00pci_register_write(rt2x00dev, RXCSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, RXCSR2, &reg);
+	rt2x00_set_field32(&reg, RXCSR2_RX_RING_REGISTER,
+		rt2x00dev->rx->data_dma);
+	rt2x00pci_register_write(rt2x00dev, RXCSR2, reg);
+
+	return 0;
+}
+
+static int rt2500pci_init_registers(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
+		return -EBUSY;
+
+	rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0x3f3b3100);
+	rt2x00pci_register_write(rt2x00dev, PCICSR, 0x000003b8);
+
+	rt2x00pci_register_write(rt2x00dev, PSCSR0, 0x00020002);
+	rt2x00pci_register_write(rt2x00dev, PSCSR1, 0x00000002);
+	rt2x00pci_register_write(rt2x00dev, PSCSR2, 0x00020002);
+	rt2x00pci_register_write(rt2x00dev, PSCSR3, 0x00000002);
+
+	rt2x00pci_register_read(rt2x00dev, TIMECSR, &reg);
+	rt2x00_set_field32(&reg, TIMECSR_US_COUNT, 33);
+	rt2x00_set_field32(&reg, TIMECSR_US_64_COUNT, 63);
+	rt2x00_set_field32(&reg, TIMECSR_BEACON_EXPECT, 0);
+	rt2x00pci_register_write(rt2x00dev, TIMECSR, reg);
+
+	rt2x00pci_register_read(rt2x00dev, CSR9, &reg);
+	rt2x00_set_field32(&reg, CSR9_MAX_FRAME_UNIT,
+		rt2x00dev->rx->data_size / 128);
+	rt2x00pci_register_write(rt2x00dev, CSR9, reg);
+
+	rt2x00pci_register_write(rt2x00dev, CNT3, 0);
+
+	rt2x00pci_register_write(rt2x00dev, GPIOCSR, 0x0000ff00);
+	rt2x00pci_register_write(rt2x00dev, TESTCSR, 0x000000f0);
+
+	rt2x00pci_register_write(rt2x00dev, MACCSR0, 0x00213223);
+	rt2x00pci_register_write(rt2x00dev, MACCSR1, 0x00235518);
+
+	rt2x00pci_register_read(rt2x00dev, MACCSR2, &reg);
+	rt2x00_set_field32(&reg, MACCSR2_DELAY, 64);
+	rt2x00pci_register_write(rt2x00dev, MACCSR2, reg);
+
+	/*
+	 * Always use CWmin and CWmax set in descriptor.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
+	rt2x00_set_field32(&reg, CSR11_CW_SELECT, 0);
+	rt2x00pci_register_write(rt2x00dev, CSR11, reg);
+
+	rt2x00pci_register_read(rt2x00dev, RXCSR3, &reg);
+	/*
+	 * Signal.
+	 */
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID0, 47);
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID0_VALID, 1);
+	/*
+	 * Rssi.
+	 */
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID1, 51);
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID1_VALID, 1);
+	/*
+	 * OFDM Rate.
+	 */
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID2, 42);
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID2_VALID, 1);
+	/*
+	 * OFDM.
+	 */
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID3, 51);
+	rt2x00_set_field32(&reg, RXCSR3_BBP_ID3_VALID, 1);
+	rt2x00pci_register_write(rt2x00dev, RXCSR3, reg);
+
+	rt2x00pci_register_read(rt2x00dev, RALINKCSR, &reg);
+	rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_DATA0, 17);
+	rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_ID0, 26);
+	rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_VALID0, 1);
+	rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_DATA1, 0);
+	rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_ID1, 26);
+	rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_VALID1, 1);
+	rt2x00pci_register_write(rt2x00dev, RALINKCSR, reg);
+
+	rt2x00pci_register_write(rt2x00dev, BBPCSR1, 0x82188200);
+
+	rt2x00pci_register_write(rt2x00dev, TXACKCSR0, 0x00000020);
+
+	rt2x00pci_register_write(rt2x00dev, ARTCSR0, 0x7038140a);
+	rt2x00pci_register_write(rt2x00dev, ARTCSR1, 0x1d21252d);
+	rt2x00pci_register_write(rt2x00dev, ARTCSR2, 0x1919191d);
+
+	rt2x00pci_register_read(rt2x00dev, CSR1, &reg);
+	rt2x00_set_field32(&reg, CSR1_SOFT_RESET, 1);
+	rt2x00_set_field32(&reg, CSR1_BBP_RESET, 0);
+	rt2x00_set_field32(&reg, CSR1_HOST_READY, 0);
+	rt2x00pci_register_write(rt2x00dev, CSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, CSR1, &reg);
+	rt2x00_set_field32(&reg, CSR1_SOFT_RESET, 0);
+	rt2x00_set_field32(&reg, CSR1_HOST_READY, 1);
+	rt2x00pci_register_write(rt2x00dev, CSR1, reg);
+
+	/*
+	 * We must clear the FCS and FIFO error count.
+	 * These registers are cleared on read,
+	 * so we may pass a useless variable to store the value.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CNT0, &reg);
+	rt2x00pci_register_read(rt2x00dev, CNT4, &reg);
+
+	return 0;
+}
+
+static int rt2500pci_init_bbp(struct rt2x00_dev *rt2x00dev)
+{
+	unsigned int i;
+	u16 eeprom;
+	u8 reg_id;
+	u8 value;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2500pci_bbp_read(rt2x00dev, 0, &value);
+		if ((value != 0xff) && (value != 0x00))
+			goto continue_csr_init;
+		NOTICE(rt2x00dev, "Waiting for BBP register.\n");
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
+	return -EACCES;
+
+continue_csr_init:
+	rt2500pci_bbp_write(rt2x00dev, 3, 0x02);
+	rt2500pci_bbp_write(rt2x00dev, 4, 0x19);
+	rt2500pci_bbp_write(rt2x00dev, 14, 0x1c);
+	rt2500pci_bbp_write(rt2x00dev, 15, 0x30);
+	rt2500pci_bbp_write(rt2x00dev, 16, 0xac);
+	rt2500pci_bbp_write(rt2x00dev, 17, 0x48);
+	rt2500pci_bbp_write(rt2x00dev, 18, 0x18);
+	rt2500pci_bbp_write(rt2x00dev, 19, 0xff);
+	rt2500pci_bbp_write(rt2x00dev, 20, 0x1e);
+	rt2500pci_bbp_write(rt2x00dev, 21, 0x08);
+	rt2500pci_bbp_write(rt2x00dev, 22, 0x08);
+	rt2500pci_bbp_write(rt2x00dev, 23, 0x08);
+	rt2500pci_bbp_write(rt2x00dev, 24, 0x70);
+	rt2500pci_bbp_write(rt2x00dev, 25, 0x40);
+	rt2500pci_bbp_write(rt2x00dev, 26, 0x08);
+	rt2500pci_bbp_write(rt2x00dev, 27, 0x23);
+	rt2500pci_bbp_write(rt2x00dev, 30, 0x10);
+	rt2500pci_bbp_write(rt2x00dev, 31, 0x2b);
+	rt2500pci_bbp_write(rt2x00dev, 32, 0xb9);
+	rt2500pci_bbp_write(rt2x00dev, 34, 0x12);
+	rt2500pci_bbp_write(rt2x00dev, 35, 0x50);
+	rt2500pci_bbp_write(rt2x00dev, 39, 0xc4);
+	rt2500pci_bbp_write(rt2x00dev, 40, 0x02);
+	rt2500pci_bbp_write(rt2x00dev, 41, 0x60);
+	rt2500pci_bbp_write(rt2x00dev, 53, 0x10);
+	rt2500pci_bbp_write(rt2x00dev, 54, 0x18);
+	rt2500pci_bbp_write(rt2x00dev, 56, 0x08);
+	rt2500pci_bbp_write(rt2x00dev, 57, 0x10);
+	rt2500pci_bbp_write(rt2x00dev, 58, 0x08);
+	rt2500pci_bbp_write(rt2x00dev, 61, 0x6d);
+	rt2500pci_bbp_write(rt2x00dev, 62, 0x10);
+
+	DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
+	for (i = 0; i < EEPROM_BBP_SIZE; i++) {
+		rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
+
+		if (eeprom != 0xffff && eeprom != 0x0000) {
+			reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
+			value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
+			DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
+				reg_id, value);
+			rt2500pci_bbp_write(rt2x00dev, reg_id, value);
+		}
+	}
+	DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
+
+	return 0;
+}
+
+/*
+ * Device state switch handlers.
+ */
+static void rt2500pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
+	rt2x00_set_field32(&reg, RXCSR0_DISABLE_RX,
+		state == STATE_RADIO_RX_OFF);
+	rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
+}
+
+static int rt2500pci_enable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	/*
+	 * Initialize all registers.
+	 */
+	if (rt2500pci_init_rings(rt2x00dev) ||
+	    rt2500pci_init_registers(rt2x00dev) ||
+	    rt2500pci_init_bbp(rt2x00dev)) {
+		ERROR(rt2x00dev, "Register initialization failed.\n");
+		return -EIO;
+	}
+
+	/*
+	 * Clear interrupts.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
+	rt2x00pci_register_write(rt2x00dev, CSR7, reg);
+
+	/*
+	 * Enable interrupts.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CSR8, &reg);
+	rt2x00_set_field32(&reg, CSR8_TBCN_EXPIRE, 0);
+	rt2x00_set_field32(&reg, CSR8_TXDONE_TXRING, 0);
+	rt2x00_set_field32(&reg, CSR8_TXDONE_ATIMRING, 0);
+	rt2x00_set_field32(&reg, CSR8_TXDONE_PRIORING, 0);
+	rt2x00_set_field32(&reg, CSR8_RXDONE, 0);
+	rt2x00pci_register_write(rt2x00dev, CSR8, reg);
+
+	/*
+	 * Enable LED
+	 */
+	rt2500pci_enable_led(rt2x00dev);
+
+	return 0;
+}
+
+static void rt2500pci_disable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	/*
+	 * Disable LED
+	 */
+	rt2500pci_disable_led(rt2x00dev);
+
+	rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0);
+
+	/*
+	 * Disable synchronisation.
+	 */
+	rt2x00pci_register_write(rt2x00dev, CSR14, 0);
+
+	/*
+	 * Cancel RX and TX.
+	 */
+	rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
+	rt2x00_set_field32(&reg, TXCSR0_ABORT, 1);
+	rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
+
+	/*
+	 * Disable interrupts.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CSR8, &reg);
+	rt2x00_set_field32(&reg, CSR8_TBCN_EXPIRE, 1);
+	rt2x00_set_field32(&reg, CSR8_TXDONE_TXRING, 1);
+	rt2x00_set_field32(&reg, CSR8_TXDONE_ATIMRING, 1);
+	rt2x00_set_field32(&reg, CSR8_TXDONE_PRIORING, 1);
+	rt2x00_set_field32(&reg, CSR8_RXDONE, 1);
+	rt2x00pci_register_write(rt2x00dev, CSR8, reg);
+}
+
+static int rt2500pci_set_state(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	u32 reg;
+	unsigned int i;
+	char put_to_sleep;
+	char bbp_state;
+	char rf_state;
+
+	put_to_sleep = (state != STATE_AWAKE);
+
+	rt2x00pci_register_read(rt2x00dev, PWRCSR1, &reg);
+	rt2x00_set_field32(&reg, PWRCSR1_SET_STATE, 1);
+	rt2x00_set_field32(&reg, PWRCSR1_BBP_DESIRE_STATE, state);
+	rt2x00_set_field32(&reg, PWRCSR1_RF_DESIRE_STATE, state);
+	rt2x00_set_field32(&reg, PWRCSR1_PUT_TO_SLEEP, put_to_sleep);
+	rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg);
+
+	/*
+	 * Device is not guaranteed to be in the requested state yet.
+	 * We must wait until the register indicates that the
+	 * device has entered the correct state.
+	 */
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2x00pci_register_read(rt2x00dev, PWRCSR1, &reg);
+		bbp_state = rt2x00_get_field32(reg, PWRCSR1_BBP_CURR_STATE);
+		rf_state = rt2x00_get_field32(reg, PWRCSR1_RF_CURR_STATE);
+		if (bbp_state == state && rf_state == state)
+			return 0;
+		msleep(10);
+	}
+
+	NOTICE(rt2x00dev, "Device failed to enter state %d, "
+		"current device state: bbp %d and rf %d.\n",
+		state, bbp_state, rf_state);
+
+	return -EBUSY;
+}
+
+static int rt2500pci_set_device_state(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	int retval = 0;
+
+	switch (state) {
+		case STATE_RADIO_ON:
+			retval = rt2500pci_enable_radio(rt2x00dev);
+		break;
+		case STATE_RADIO_OFF:
+			rt2500pci_disable_radio(rt2x00dev);
+		break;
+		case STATE_RADIO_RX_ON:
+		case STATE_RADIO_RX_OFF:
+			rt2500pci_toggle_rx(rt2x00dev, state);
+		break;
+		case STATE_DEEP_SLEEP:
+		case STATE_SLEEP:
+		case STATE_STANDBY:
+		case STATE_AWAKE:
+			retval = rt2500pci_set_state(rt2x00dev, state);
+		break;
+		default:
+			retval = -ENOTSUPP;
+		break;
+	}
+
+	return retval;
+}
+
+/*
+ * TX descriptor initialization
+ */
+static void rt2500pci_write_tx_desc(struct rt2x00_dev *rt2x00dev,
+	struct data_entry *entry, struct data_desc *txd,
+	struct data_entry_desc *desc, struct ieee80211_hdr *ieee80211hdr,
+	unsigned int length, struct ieee80211_tx_control *control)
+{
+	u32 word;
+
+	/*
+	 * Start writing the descriptor words.
+	 */
+	rt2x00_desc_read(txd, 2, &word);
+	rt2x00_set_field32(&word, TXD_W2_IV_OFFSET, IEEE80211_HEADER);
+	rt2x00_set_field32(&word, TXD_W2_AIFS, entry->ring->tx_params.aifs);
+	rt2x00_set_field32(&word, TXD_W2_CWMIN, entry->ring->tx_params.cw_min);
+	rt2x00_set_field32(&word, TXD_W2_CWMAX, entry->ring->tx_params.cw_max);
+	rt2x00_desc_write(txd, 2, word);
+
+	rt2x00_desc_read(txd, 3, &word);
+	rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, desc->signal);
+	rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, desc->service);
+	rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW, desc->length_low);
+	rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH, desc->length_high);
+	rt2x00_desc_write(txd, 3, word);
+
+	rt2x00_desc_read(txd, 10, &word);
+	rt2x00_set_field32(&word, TXD_W10_RTS,
+		test_bit(ENTRY_TXD_RTS_FRAME, &entry->flags));
+	rt2x00_desc_write(txd, 10, word);
+
+	rt2x00_desc_read(txd, 0, &word);
+	rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1);
+	rt2x00_set_field32(&word, TXD_W0_VALID, 1);
+	rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
+		test_bit(ENTRY_TXD_MORE_FRAG, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_ACK,
+		test_bit(ENTRY_TXD_REQ_ACK, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
+		test_bit(ENTRY_TXD_REQ_TIMESTAMP, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_OFDM,
+		test_bit(ENTRY_TXD_OFDM_RATE, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_CIPHER_OWNER, 1);
+	rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs);
+	rt2x00_set_field32(&word, TXD_W0_RETRY_MODE, 0);
+	rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, length);
+	rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE);
+	rt2x00_desc_write(txd, 0, word);
+}
+
+/*
+ * TX data initialization
+ */
+static void rt2500pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev, int queue)
+{
+	u32 reg;
+
+	if (queue == IEEE80211_TX_QUEUE_BEACON) {
+		rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
+		if (!rt2x00_get_field32(reg, CSR14_BEACON_GEN)) {
+			rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 1);
+			rt2x00pci_register_write(rt2x00dev, CSR14, reg);
+		}
+		return;
+	}
+
+	rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
+	if (queue == IEEE80211_TX_QUEUE_DATA0)
+		rt2x00_set_field32(&reg, TXCSR0_KICK_PRIO, 1);
+	else if (queue == IEEE80211_TX_QUEUE_DATA1)
+		rt2x00_set_field32(&reg, TXCSR0_KICK_TX, 1);
+	else if (queue == IEEE80211_TX_QUEUE_AFTER_BEACON)
+		rt2x00_set_field32(&reg, TXCSR0_KICK_ATIM, 1);
+	rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
+}
+
+/*
+ * Interrupt functions.
+ */
+static void rt2500pci_rxdone(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_ring *ring = rt2x00dev->rx;
+	struct data_entry *entry;
+	struct data_desc *rxd;
+	u32 word0;
+	u32 word2;
+	int signal;
+	int rssi;
+	int ofdm;
+	u16 size;
+
+	while (1) {
+		entry = rt2x00_get_data_entry(ring);
+		rxd = entry->priv;
+		rt2x00_desc_read(rxd, 0, &word0);
+		rt2x00_desc_read(rxd, 2, &word2);
+
+		if (rt2x00_get_field32(word0, RXD_W0_OWNER_NIC))
+			break;
+
+		/*
+		 * TODO: Don't we need to keep statistics
+		 * updated about events like CRC and physical errors?
+		 */
+		if (rt2x00_get_field32(word0, RXD_W0_CRC) ||
+		    rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
+			goto skip_entry;
+
+		/*
+		 * Obtain the status about this packet.
+		 */
+		size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
+		signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL);
+		rssi = rt2x00_get_field32(word2, RXD_W2_RSSI);
+		ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
+
+		/*
+		 * Send the packet to upper layer.
+		 */
+		rt2x00lib_rxdone(entry, entry->data_addr, size,
+			signal, rssi, ofdm);
+
+skip_entry:
+		if (test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags)) {
+			rt2x00_set_field32(&word0, RXD_W0_OWNER_NIC, 1);
+			rt2x00_desc_write(rxd, 0, word0);
+		}
+
+		rt2x00_ring_index_inc(ring);
+	}
+}
+
+static void rt2500pci_txdone(struct rt2x00_dev *rt2x00dev, const int queue)
+{
+	struct data_ring *ring = rt2x00_get_ring(rt2x00dev, queue);
+	struct data_entry *entry;
+	struct data_desc *txd;
+	u32 word;
+	int tx_status;
+	int retry;
+
+	while (!rt2x00_ring_empty(ring)) {
+		entry = rt2x00_get_data_entry_done(ring);
+		txd = entry->priv;
+		rt2x00_desc_read(txd, 0, &word);
+
+		if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
+		    !rt2x00_get_field32(word, TXD_W0_VALID))
+			break;
+
+		/*
+		 * Obtain the status about this packet.
+		 */
+		tx_status = rt2x00_get_field32(word, TXD_W0_RESULT);
+		retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT);
+
+		rt2x00lib_txdone(entry, tx_status, retry);
+
+		/*
+		 * Make this entry available for reuse.
+		 */
+		entry->flags = 0;
+		rt2x00_set_field32(&word, TXD_W0_VALID, 0);
+		rt2x00_desc_write(txd, 0, word);
+		rt2x00_ring_index_done_inc(ring);
+	}
+
+	/*
+	 * If the data ring was full before the txdone handler
+	 * we must make sure the packet queue in the mac80211 stack
+	 * is reenabled when the txdone handler has finished.
+	 */
+	entry = ring->entry;
+	if (!rt2x00_ring_full(ring))
+		ieee80211_wake_queue(rt2x00dev->hw,
+			entry->tx_status.control.queue);
+}
+
+static irqreturn_t rt2500pci_interrupt(int irq, void *dev_instance)
+{
+	struct rt2x00_dev *rt2x00dev = dev_instance;
+	u32 reg;
+
+	/*
+	 * Get the interrupt sources & saved to local variable.
+	 * Write register value back to clear pending interrupts.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
+	rt2x00pci_register_write(rt2x00dev, CSR7, reg);
+
+	if (!reg)
+		return IRQ_NONE;
+
+	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+		return IRQ_HANDLED;
+
+	/*
+	 * Handle interrupts, walk through all bits
+	 * and run the tasks, the bits are checked in order of
+	 * priority.
+	 */
+
+	/*
+	 * 1 - Beacon timer expired interrupt.
+	 */
+	if (rt2x00_get_field32(reg, CSR7_TBCN_EXPIRE))
+		rt2x00pci_beacondone(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
+
+	/*
+	 * 2 - Rx ring done interrupt.
+	 */
+	if (rt2x00_get_field32(reg, CSR7_RXDONE))
+		rt2500pci_rxdone(rt2x00dev);
+
+	/*
+	 * 3 - Atim ring transmit done interrupt.
+	 */
+	if (rt2x00_get_field32(reg, CSR7_TXDONE_ATIMRING))
+		rt2500pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_AFTER_BEACON);
+
+	/*
+	 * 4 - Priority ring transmit done interrupt.
+	 */
+	if (rt2x00_get_field32(reg, CSR7_TXDONE_PRIORING))
+		rt2500pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_DATA0);
+
+	/*
+	 * 5 - Tx ring transmit done interrupt.
+	 */
+	if (rt2x00_get_field32(reg, CSR7_TXDONE_TXRING))
+		rt2500pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_DATA1);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * Device initialization functions.
+ */
+static int rt2500pci_alloc_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	struct eeprom_93cx6 eeprom;
+	u32 reg;
+	u16 word;
+
+	/*
+	 * Allocate the eeprom memory, check the eeprom width
+	 * and copy the entire eeprom into this allocated memory.
+	 */
+	rt2x00dev->eeprom = kzalloc(EEPROM_SIZE, GFP_KERNEL);
+	if (!rt2x00dev->eeprom)
+		return -ENOMEM;
+
+	rt2x00pci_register_read(rt2x00dev, CSR21, &reg);
+
+	eeprom.data = rt2x00dev;
+	eeprom.register_read = rt2500pci_eepromregister_read;
+	eeprom.register_write = rt2500pci_eepromregister_write;
+	eeprom.width = rt2x00_get_field32(reg, CSR21_TYPE_93C46) ?
+		PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
+	eeprom.reg_data_in = 0;
+	eeprom.reg_data_out = 0;
+	eeprom.reg_data_clock = 0;
+	eeprom.reg_chip_select = 0;
+
+	eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
+		EEPROM_SIZE / sizeof(u16));
+
+	/*
+	 * Start validation of the data that has been read.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
+		EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
+		rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
+		rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
+		EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
+			MAX_RX_SSI);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
+		EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
+	}
+
+	return 0;
+}
+
+static int rt2500pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+	u16 value;
+	u16 eeprom;
+
+	/*
+	 * Read EEPROM word for configuration.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
+
+	/*
+	 * Identify RF chipset.
+	 */
+	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
+	rt2x00pci_register_read(rt2x00dev, CSR0, &reg);
+	rt2x00_set_chip(rt2x00dev, RT2560, value, reg);
+
+	if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
+		ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
+		return -ENODEV;
+	}
+
+	/*
+	 * Identify default antenna configuration.
+	 */
+	rt2x00dev->hw->conf.antenna_sel_tx = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_TX_DEFAULT);
+	rt2x00dev->hw->conf.antenna_sel_rx = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_RX_DEFAULT);
+
+	/*
+	 * Store led mode, for correct led behaviour.
+	 */
+	rt2x00dev->led_mode = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_LED_MODE);
+
+	/*
+	 * Detect if this device has an hardware controlled radio.
+	 */
+	if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
+		__set_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
+
+	/*
+	 * Check if the BBP tuning should be enabled.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
+
+	if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
+		__set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
+
+	/*
+	 * Read the RSSI <-> dBm offset information.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
+	rt2x00dev->hw->max_rssi =
+		rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
+
+	return 0;
+}
+
+static const struct {
+	unsigned int chip;
+	u32 val[3];
+} rf_vals[] = {
+	{ RF2522,	{ 0x00002050, 0x00000101, 0x00000000 } },
+	{ RF2523,	{ 0x00022010, 0x000e0111, 0x00000a1b } },
+	{ RF2524,	{ 0x00032020, 0x00000101, 0x00000a1b } },
+	{ RF2525,	{ 0x00022020, 0x00060111, 0x00000a1b } },
+	{ RF2525E,	{ 0x00022020, 0x00060111, 0x00000a0b } },
+	{ RF5222,	{ 0x00000000, 0x00000101, 0x00000000 } },
+};
+
+/*
+ * RF value list for RF2522
+ * Supports: 2.4 GHz
+ */
+static const u32 rf_vals_bg_2522[] = {
+	0x000c1fda, 0x000c1fee, 0x000c2002, 0x000c2016, 0x000c202a,
+	0x000c203e, 0x000c2052, 0x000c2066, 0x000c207a, 0x000c208e,
+	0x000c20a2, 0x000c20b6, 0x000c20ca, 0x000c20fa
+};
+
+/*
+ * RF value list for RF2523, RF2524 & RF2525
+ * Supports: 2.4 GHz
+ */
+static const u32 rf_vals_bg_252x[] = {
+	0x00000c9e, 0x00000ca2, 0x00000ca6, 0x00000caa, 0x00000cae,
+	0x00000cb2, 0x00000cb6, 0x00000cba, 0x00000cbe, 0x00000d02,
+	0x00000d06, 0x00000d0a, 0x00000d0e, 0x00000d1a
+};
+
+/*
+ * RF value list for RF2525E & RF5222
+ * Supports: 2.4 GHz
+ */
+static const u32 rf_vals_bg_5x[] = {
+	0x00001136, 0x0000113a, 0x0000113e, 0x00001182, 0x00001186,
+	0x0000118a, 0x0000118e, 0x00001192, 0x00001196, 0x0000119a,
+	0x0000119e, 0x000011a2, 0x000011a6, 0x000011ae
+};
+
+/*
+ * RF value list for RF5222 (supplement to rf_vals_bg_5x)
+ * Supports: 5.2 GHz
+ */
+static const u32 rf_vals_a_5x[] = {
+	0x00018896, 0x0001889a, 0x0001889e, 0x000188a2, 0x000188a6,
+	0x000188aa, 0x000188ae, 0x000188b2, 0x00008802, 0x00008806,
+	0x0000880a, 0x0000880e, 0x00008812, 0x00008816, 0x0000881a,
+	0x0000881e, 0x00008822, 0x00008826, 0x0000882a, 0x000090a6,
+	0x000090ae, 0x000090b6, 0x000090be
+};
+
+static void rt2500pci_init_hw_mode(struct rt2x00_dev *rt2x00dev)
+{
+	struct hw_mode_spec *spec = &rt2x00dev->spec;
+	u8 *txpower;
+	unsigned int i;
+
+	/*
+	 * Initialize all hw fields.
+	 */
+	rt2x00dev->hw->flags =  IEEE80211_HW_HOST_GEN_BEACON |
+		IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
+		IEEE80211_HW_WEP_INCLUDE_IV |
+		IEEE80211_HW_DATA_NULLFUNC_ACK |
+		IEEE80211_HW_NO_TKIP_WMM_HWACCEL |
+		IEEE80211_HW_MONITOR_DURING_OPER;
+	rt2x00dev->hw->extra_tx_headroom = 0;
+	rt2x00dev->hw->max_rssi = MAX_RX_SSI;
+	rt2x00dev->hw->max_noise = MAX_RX_NOISE;
+	rt2x00dev->hw->queues = 2;
+
+	/*
+	 * This device supports ATIM
+	 */
+	__set_bit(DEVICE_SUPPORT_ATIM, &rt2x00dev->flags);
+
+	/*
+	 * Set device specific, but channel independent RF values.
+	 */
+	for (i = 0; i < ARRAY_SIZE(rf_vals); i++) {
+		if (rt2x00_rf(&rt2x00dev->chip, rf_vals[i].chip)) {
+			rt2x00dev->rf1 = rf_vals[i].val[0];
+			rt2x00dev->rf3 = rf_vals[i].val[1];
+			rt2x00dev->rf4 = rf_vals[i].val[2];
+		}
+	}
+
+	/*
+	 * Convert tx_power array in eeprom.
+	 */
+	txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
+	for (i = 0; i < 14; i++)
+		txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
+
+	/*
+	 * Initialize hw_mode information.
+	 */
+	spec->mac_addr = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
+	spec->num_modes = 2;
+	spec->num_rates = 12;
+	spec->num_channels = 14;
+	spec->tx_power_a = NULL;
+	spec->tx_power_bg = txpower;
+	spec->tx_power_default = DEFAULT_TXPOWER;
+	spec->chan_val_a = NULL;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF2522))
+		spec->chan_val_bg = rf_vals_bg_2522;
+	else if (rt2x00_rf(&rt2x00dev->chip, RF2523) ||
+		 rt2x00_rf(&rt2x00dev->chip, RF2524) ||
+		 rt2x00_rf(&rt2x00dev->chip, RF2525))
+		spec->chan_val_bg = rf_vals_bg_252x;
+	else if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
+		 rt2x00_rf(&rt2x00dev->chip, RF5222))
+		spec->chan_val_bg = rf_vals_bg_5x;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
+		spec->num_modes = 3;
+		spec->num_channels += 23;
+		spec->chan_val_a = rf_vals_a_5x;
+	}
+}
+
+static int rt2500pci_init_hw(struct rt2x00_dev *rt2x00dev)
+{
+	int retval;
+
+	/*
+	 * Allocate eeprom data.
+	 */
+	retval = rt2500pci_alloc_eeprom(rt2x00dev);
+	if (retval)
+		return retval;
+
+	retval = rt2500pci_init_eeprom(rt2x00dev);
+	if (retval)
+		return retval;
+
+	/*
+	 * Initialize hw specifications.
+	 */
+	rt2500pci_init_hw_mode(rt2x00dev);
+
+	return 0;
+}
+
+/*
+ * IEEE80211 stack callback functions.
+ */
+static int rt2500pci_get_stats(struct ieee80211_hw *hw,
+	struct ieee80211_low_level_stats *stats)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u32 reg;
+
+	/*
+	 * Update FCS error count from register.
+	 * The dot11ACKFailureCount, dot11RTSFailureCount and
+	 * dot11RTSSuccessCount are updated in interrupt time.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CNT0, &reg);
+	rt2x00dev->low_level_stats.dot11FCSErrorCount +=
+		rt2x00_get_field32(reg, CNT0_FCS_ERROR);
+
+	memcpy(stats, &rt2x00dev->low_level_stats, sizeof(*stats));
+
+	return 0;
+}
+
+static int rt2500pci_set_retry_limit(struct ieee80211_hw *hw,
+	u32 short_retry, u32 long_retry)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
+	rt2x00_set_field32(&reg, CSR11_LONG_RETRY, long_retry);
+	rt2x00_set_field32(&reg, CSR11_SHORT_RETRY, short_retry);
+	rt2x00pci_register_write(rt2x00dev, CSR11, reg);
+
+	return 0;
+}
+
+static u64 rt2500pci_get_tsf(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u64 tsf;
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, CSR17, &reg);
+	tsf = (u64)rt2x00_get_field32(reg, CSR17_HIGH_TSFTIMER) << 32;
+	rt2x00pci_register_read(rt2x00dev, CSR16, &reg);
+	tsf |= rt2x00_get_field32(reg, CSR16_LOW_TSFTIMER);
+
+	return tsf;
+}
+
+static void rt2500pci_reset_tsf(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	rt2x00pci_register_write(rt2x00dev, CSR16, 0);
+	rt2x00pci_register_write(rt2x00dev, CSR17, 0);
+}
+
+static int rt2500pci_tx_last_beacon(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, CSR15, &reg);
+	return rt2x00_get_field32(reg, CSR15_BEACON_SENT);
+}
+
+static const struct ieee80211_ops rt2500pci_mac80211_ops = {
+	.tx			= rt2x00lib_tx,
+	.reset			= rt2x00lib_reset,
+	.open			= rt2x00lib_open,
+	.stop			= rt2x00lib_stop,
+	.add_interface		= rt2x00lib_add_interface,
+	.remove_interface	= rt2x00lib_remove_interface,
+	.config			= rt2x00lib_config,
+	.config_interface	= rt2x00lib_config_interface,
+	.set_multicast_list	= rt2x00lib_set_multicast_list,
+	.get_stats		= rt2500pci_get_stats,
+	.set_retry_limit	= rt2500pci_set_retry_limit,
+	.conf_tx		= rt2x00lib_conf_tx,
+	.get_tx_stats		= rt2x00lib_get_tx_stats,
+	.get_tsf		= rt2500pci_get_tsf,
+	.reset_tsf		= rt2500pci_reset_tsf,
+	.beacon_update		= rt2x00pci_beacon_update,
+	.tx_last_beacon		= rt2500pci_tx_last_beacon,
+};
+
+static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = {
+	.irq_handler		= rt2500pci_interrupt,
+	.init_hw		= rt2500pci_init_hw,
+	.initialize		= rt2x00pci_initialize,
+	.uninitialize		= rt2x00pci_uninitialize,
+	.set_device_state	= rt2500pci_set_device_state,
+#ifdef CONFIG_RT2500PCI_RFKILL
+	.rfkill_poll		= rt2500pci_rfkill_poll,
+#endif /* CONFIG_RT2500PCI_RFKILL */
+	.link_tuner		= rt2500pci_link_tuner,
+	.write_tx_desc		= rt2500pci_write_tx_desc,
+	.write_tx_data		= rt2x00pci_write_tx_data,
+	.kick_tx_queue		= rt2500pci_kick_tx_queue,
+	.config_type		= rt2500pci_config_type,
+	.config_phymode		= rt2500pci_config_phymode,
+	.config_channel		= rt2500pci_config_channel,
+	.config_mac_addr	= rt2500pci_config_mac_addr,
+	.config_bssid		= rt2500pci_config_bssid,
+	.config_promisc		= rt2500pci_config_promisc,
+	.config_txpower		= rt2500pci_config_txpower,
+	.config_antenna		= rt2500pci_config_antenna,
+	.config_duration	= rt2500pci_config_duration,
+};
+
+static const struct rt2x00_ops rt2500pci_ops = {
+	.name	= DRV_NAME,
+	.rxd_size = RXD_DESC_SIZE,
+	.txd_size = TXD_DESC_SIZE,
+	.lib	= &rt2500pci_rt2x00_ops,
+	.hw	= &rt2500pci_mac80211_ops,
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+	.debugfs = &rt2500pci_rt2x00debug,
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+};
+
+/*
+ * RT2500pci module information.
+ */
+static struct pci_device_id rt2500pci_device_table[] = {
+	{ PCI_DEVICE(0x1814, 0x0201), PCI_DEVICE_DATA(&rt2500pci_ops) },
+	{ 0, }
+};
+
+MODULE_AUTHOR(DRV_PROJECT);
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("Ralink RT2500 PCI & PCMCIA Wireless LAN driver.");
+MODULE_SUPPORTED_DEVICE("Ralink RT2560 PCI & PCMCIA chipset based cards");
+MODULE_DEVICE_TABLE(pci, rt2500pci_device_table);
+MODULE_LICENSE("GPL");
+
+static struct pci_driver rt2500pci_driver = {
+	.name		= DRV_NAME,
+	.id_table	= rt2500pci_device_table,
+	.probe		= rt2x00pci_probe,
+	.remove		= __devexit_p(rt2x00pci_remove),
+#ifdef CONFIG_PM
+	.suspend	= rt2x00pci_suspend,
+	.resume		= rt2x00pci_resume,
+#endif /* CONFIG_PM */
+};
+
+static int __init rt2500pci_init(void)
+{
+	printk(KERN_INFO "Loading module: %s - %s by %s.\n",
+		DRV_NAME, DRV_VERSION, DRV_PROJECT);
+	return pci_register_driver(&rt2500pci_driver);
+}
+
+static void __exit rt2500pci_exit(void)
+{
+	printk(KERN_INFO "Unloading module: %s.\n", DRV_NAME);
+	pci_unregister_driver(&rt2500pci_driver);
+}
+
+module_init(rt2500pci_init);
+module_exit(rt2500pci_exit);
diff --git a/package/rt2x00/src/rt2500pci.h b/package/rt2x00/src/rt2500pci.h
new file mode 100644
index 0000000..e695a57
--- /dev/null
+++ b/package/rt2x00/src/rt2500pci.h
@@ -0,0 +1,1202 @@
+/*
+	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: rt2500pci
+	Abstract: Data structures and registers for the rt2500pci module.
+	Supported chipsets: RT2560.
+ */
+
+#ifndef RT2500PCI_H
+#define RT2500PCI_H
+
+/*
+ * RF chip defines.
+ */
+#define RF2522				0x0000
+#define RF2523				0x0001
+#define RF2524				0x0002
+#define RF2525				0x0003
+#define RF2525E				0x0004
+#define RF5222				0x0010
+
+/*
+ * RT2560 version
+ */
+#define RT2560_VERSION_B		2
+#define RT2560_VERSION_C		3
+#define RT2560_VERSION_D		4
+
+/*
+ * Max RSSI value, required for RSSI <-> dBm conversion.
+ */
+#define MAX_RX_SSI			121
+#define MAX_RX_NOISE			-110
+
+/*
+ * Register layout information.
+ */
+#define CSR_REG_BASE			0x0000
+#define CSR_REG_SIZE			0x0174
+#define EEPROM_BASE			0x0000
+#define EEPROM_SIZE			0x0200
+#define BBP_SIZE			0x0040
+
+/*
+ * Control/Status Registers(CSR).
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * CSR0: ASIC revision number.
+ */
+#define CSR0				0x0000
+
+/*
+ * CSR1: System control register.
+ * SOFT_RESET: Software reset, 1: reset, 0: normal.
+ * BBP_RESET: Hardware reset, 1: reset, 0, release.
+ * HOST_READY: Host ready after initialization.
+ */
+#define CSR1				0x0004
+#define CSR1_SOFT_RESET			FIELD32(0x00000001)
+#define CSR1_BBP_RESET			FIELD32(0x00000002)
+#define CSR1_HOST_READY			FIELD32(0x00000004)
+
+/*
+ * CSR2: System admin status register (invalid).
+ */
+#define CSR2				0x0008
+
+/*
+ * CSR3: STA MAC address register 0.
+ */
+#define CSR3				0x000c
+#define CSR3_BYTE0			FIELD32(0x000000ff)
+#define CSR3_BYTE1			FIELD32(0x0000ff00)
+#define CSR3_BYTE2			FIELD32(0x00ff0000)
+#define CSR3_BYTE3			FIELD32(0xff000000)
+
+/*
+ * CSR4: STA MAC address register 1.
+ */
+#define CSR4				0x0010
+#define CSR4_BYTE4			FIELD32(0x000000ff)
+#define CSR4_BYTE5			FIELD32(0x0000ff00)
+
+/*
+ * CSR5: BSSID register 0.
+ */
+#define CSR5				0x0014
+#define CSR5_BYTE0			FIELD32(0x000000ff)
+#define CSR5_BYTE1			FIELD32(0x0000ff00)
+#define CSR5_BYTE2			FIELD32(0x00ff0000)
+#define CSR5_BYTE3			FIELD32(0xff000000)
+
+/*
+ * CSR6: BSSID register 1.
+ */
+#define CSR6				0x0018
+#define CSR6_BYTE4			FIELD32(0x000000ff)
+#define CSR6_BYTE5			FIELD32(0x0000ff00)
+
+/*
+ * CSR7: Interrupt source register.
+ * Write 1 to clear.
+ * TBCN_EXPIRE: Beacon timer expired interrupt.
+ * TWAKE_EXPIRE: Wakeup timer expired interrupt.
+ * TATIMW_EXPIRE: Timer of atim window expired interrupt.
+ * TXDONE_TXRING: Tx ring transmit done interrupt.
+ * TXDONE_ATIMRING: Atim ring transmit done interrupt.
+ * TXDONE_PRIORING: Priority ring transmit done interrupt.
+ * RXDONE: Receive done interrupt.
+ * DECRYPTION_DONE: Decryption done interrupt.
+ * ENCRYPTION_DONE: Encryption done interrupt.
+ * UART1_TX_TRESHOLD: UART1 TX reaches threshold.
+ * UART1_RX_TRESHOLD: UART1 RX reaches threshold.
+ * UART1_IDLE_TRESHOLD: UART1 IDLE over threshold.
+ * UART1_TX_BUFF_ERROR: UART1 TX buffer error.
+ * UART1_RX_BUFF_ERROR: UART1 RX buffer error.
+ * UART2_TX_TRESHOLD: UART2 TX reaches threshold.
+ * UART2_RX_TRESHOLD: UART2 RX reaches threshold.
+ * UART2_IDLE_TRESHOLD: UART2 IDLE over threshold.
+ * UART2_TX_BUFF_ERROR: UART2 TX buffer error.
+ * UART2_RX_BUFF_ERROR: UART2 RX buffer error.
+ * TIMER_CSR3_EXPIRE: TIMECSR3 timer expired (802.1H quiet period).
+
+ */
+#define CSR7				0x001c
+#define CSR7_TBCN_EXPIRE		FIELD32(0x00000001)
+#define CSR7_TWAKE_EXPIRE		FIELD32(0x00000002)
+#define CSR7_TATIMW_EXPIRE		FIELD32(0x00000004)
+#define CSR7_TXDONE_TXRING		FIELD32(0x00000008)
+#define CSR7_TXDONE_ATIMRING		FIELD32(0x00000010)
+#define CSR7_TXDONE_PRIORING		FIELD32(0x00000020)
+#define CSR7_RXDONE			FIELD32(0x00000040)
+#define CSR7_DECRYPTION_DONE		FIELD32(0x00000080)
+#define CSR7_ENCRYPTION_DONE		FIELD32(0x00000100)
+#define CSR7_UART1_TX_TRESHOLD		FIELD32(0x00000200)
+#define CSR7_UART1_RX_TRESHOLD		FIELD32(0x00000400)
+#define CSR7_UART1_IDLE_TRESHOLD	FIELD32(0x00000800)
+#define CSR7_UART1_TX_BUFF_ERROR	FIELD32(0x00001000)
+#define CSR7_UART1_RX_BUFF_ERROR	FIELD32(0x00002000)
+#define CSR7_UART2_TX_TRESHOLD		FIELD32(0x00004000)
+#define CSR7_UART2_RX_TRESHOLD		FIELD32(0x00008000)
+#define CSR7_UART2_IDLE_TRESHOLD	FIELD32(0x00010000)
+#define CSR7_UART2_TX_BUFF_ERROR	FIELD32(0x00020000)
+#define CSR7_UART2_RX_BUFF_ERROR	FIELD32(0x00040000)
+#define CSR7_TIMER_CSR3_EXPIRE		FIELD32(0x00080000)
+
+/*
+ * CSR8: Interrupt mask register.
+ * Write 1 to mask interrupt.
+ * TBCN_EXPIRE: Beacon timer expired interrupt.
+ * TWAKE_EXPIRE: Wakeup timer expired interrupt.
+ * TATIMW_EXPIRE: Timer of atim window expired interrupt.
+ * TXDONE_TXRING: Tx ring transmit done interrupt.
+ * TXDONE_ATIMRING: Atim ring transmit done interrupt.
+ * TXDONE_PRIORING: Priority ring transmit done interrupt.
+ * RXDONE: Receive done interrupt.
+ * DECRYPTION_DONE: Decryption done interrupt.
+ * ENCRYPTION_DONE: Encryption done interrupt.
+ * UART1_TX_TRESHOLD: UART1 TX reaches threshold.
+ * UART1_RX_TRESHOLD: UART1 RX reaches threshold.
+ * UART1_IDLE_TRESHOLD: UART1 IDLE over threshold.
+ * UART1_TX_BUFF_ERROR: UART1 TX buffer error.
+ * UART1_RX_BUFF_ERROR: UART1 RX buffer error.
+ * UART2_TX_TRESHOLD: UART2 TX reaches threshold.
+ * UART2_RX_TRESHOLD: UART2 RX reaches threshold.
+ * UART2_IDLE_TRESHOLD: UART2 IDLE over threshold.
+ * UART2_TX_BUFF_ERROR: UART2 TX buffer error.
+ * UART2_RX_BUFF_ERROR: UART2 RX buffer error.
+ * TIMER_CSR3_EXPIRE: TIMECSR3 timer expired (802.1H quiet period).
+ */
+#define CSR8				0x0020
+#define CSR8_TBCN_EXPIRE		FIELD32(0x00000001)
+#define CSR8_TWAKE_EXPIRE		FIELD32(0x00000002)
+#define CSR8_TATIMW_EXPIRE		FIELD32(0x00000004)
+#define CSR8_TXDONE_TXRING		FIELD32(0x00000008)
+#define CSR8_TXDONE_ATIMRING		FIELD32(0x00000010)
+#define CSR8_TXDONE_PRIORING		FIELD32(0x00000020)
+#define CSR8_RXDONE			FIELD32(0x00000040)
+#define CSR8_DECRYPTION_DONE		FIELD32(0x00000080)
+#define CSR8_ENCRYPTION_DONE		FIELD32(0x00000100)
+#define CSR8_UART1_TX_TRESHOLD		FIELD32(0x00000200)
+#define CSR8_UART1_RX_TRESHOLD		FIELD32(0x00000400)
+#define CSR8_UART1_IDLE_TRESHOLD	FIELD32(0x00000800)
+#define CSR8_UART1_TX_BUFF_ERROR	FIELD32(0x00001000)
+#define CSR8_UART1_RX_BUFF_ERROR	FIELD32(0x00002000)
+#define CSR8_UART2_TX_TRESHOLD		FIELD32(0x00004000)
+#define CSR8_UART2_RX_TRESHOLD		FIELD32(0x00008000)
+#define CSR8_UART2_IDLE_TRESHOLD	FIELD32(0x00010000)
+#define CSR8_UART2_TX_BUFF_ERROR	FIELD32(0x00020000)
+#define CSR8_UART2_RX_BUFF_ERROR	FIELD32(0x00040000)
+#define CSR8_TIMER_CSR3_EXPIRE		FIELD32(0x00080000)
+
+/*
+ * CSR9: Maximum frame length register.
+ * MAX_FRAME_UNIT: Maximum frame length in 128b unit, default: 12.
+ */
+#define CSR9				0x0024
+#define CSR9_MAX_FRAME_UNIT		FIELD32(0x00000f80)
+
+/*
+ * SECCSR0: WEP control register.
+ * KICK_DECRYPT: Kick decryption engine, self-clear.
+ * ONE_SHOT: 0: ring mode, 1: One shot only mode.
+ * DESC_ADDRESS: Descriptor physical address of frame.
+ */
+#define SECCSR0				0x0028
+#define SECCSR0_KICK_DECRYPT		FIELD32(0x00000001)
+#define SECCSR0_ONE_SHOT		FIELD32(0x00000002)
+#define SECCSR0_DESC_ADDRESS		FIELD32(0xfffffffc)
+
+/*
+ * CSR11: Back-off control register.
+ * CWMIN: CWmin. Default cwmin is 31 (2^5 - 1).
+ * CWMAX: CWmax. Default cwmax is 1023 (2^10 - 1).
+ * SLOT_TIME: Slot time, default is 20us for 802.11b
+ * CW_SELECT: CWmin/CWmax selection, 1: Register, 0: TXD.
+ * LONG_RETRY: Long retry count.
+ * SHORT_RETRY: Short retry count.
+ */
+#define CSR11				0x002c
+#define CSR11_CWMIN			FIELD32(0x0000000f)
+#define CSR11_CWMAX			FIELD32(0x000000f0)
+#define CSR11_SLOT_TIME			FIELD32(0x00001f00)
+#define CSR11_CW_SELECT			FIELD32(0x00002000)
+#define CSR11_LONG_RETRY		FIELD32(0x00ff0000)
+#define CSR11_SHORT_RETRY		FIELD32(0xff000000)
+
+/*
+ * CSR12: Synchronization configuration register 0.
+ * All units in 1/16 TU.
+ * BEACON_INTERVAL: Beacon interval, default is 100 TU.
+ * CFP_MAX_DURATION: Cfp maximum duration, default is 100 TU.
+ */
+#define CSR12				0x0030
+#define CSR12_BEACON_INTERVAL		FIELD32(0x0000ffff)
+#define CSR12_CFP_MAX_DURATION		FIELD32(0xffff0000)
+
+/*
+ * CSR13: Synchronization configuration register 1.
+ * All units in 1/16 TU.
+ * ATIMW_DURATION: Atim window duration.
+ * CFP_PERIOD: Cfp period, default is 0 TU.
+ */
+#define CSR13				0x0034
+#define CSR13_ATIMW_DURATION		FIELD32(0x0000ffff)
+#define CSR13_CFP_PERIOD		FIELD32(0x00ff0000)
+
+/*
+ * CSR14: Synchronization control register.
+ * TSF_COUNT: Enable tsf auto counting.
+ * TSF_SYNC: Tsf sync, 0: disable, 1: infra, 2: ad-hoc/master mode.
+ * TBCN: Enable tbcn with reload value.
+ * TCFP: Enable tcfp & cfp / cp switching.
+ * TATIMW: Enable tatimw & atim window switching.
+ * BEACON_GEN: Enable beacon generator.
+ * CFP_COUNT_PRELOAD: Cfp count preload value.
+ * TBCM_PRELOAD: Tbcn preload value in units of 64us.
+ */
+#define CSR14				0x0038
+#define CSR14_TSF_COUNT			FIELD32(0x00000001)
+#define CSR14_TSF_SYNC			FIELD32(0x00000006)
+#define CSR14_TBCN			FIELD32(0x00000008)
+#define CSR14_TCFP			FIELD32(0x00000010)
+#define CSR14_TATIMW			FIELD32(0x00000020)
+#define CSR14_BEACON_GEN		FIELD32(0x00000040)
+#define CSR14_CFP_COUNT_PRELOAD		FIELD32(0x0000ff00)
+#define CSR14_TBCM_PRELOAD		FIELD32(0xffff0000)
+
+/*
+ * CSR15: Synchronization status register.
+ * CFP: ASIC is in contention-free period.
+ * ATIMW: ASIC is in ATIM window.
+ * BEACON_SENT: Beacon is send.
+ */
+#define CSR15				0x003c
+#define CSR15_CFP			FIELD32(0x00000001)
+#define CSR15_ATIMW			FIELD32(0x00000002)
+#define CSR15_BEACON_SENT		FIELD32(0x00000004)
+
+/*
+ * CSR16: TSF timer register 0.
+ */
+#define CSR16				0x0040
+#define CSR16_LOW_TSFTIMER		FIELD32(0xffffffff)
+
+/*
+ * CSR17: TSF timer register 1.
+ */
+#define CSR17				0x0044
+#define CSR17_HIGH_TSFTIMER		FIELD32(0xffffffff)
+
+/*
+ * CSR18: IFS timer register 0.
+ * SIFS: Sifs, default is 10 us.
+ * PIFS: Pifs, default is 30 us.
+ */
+#define CSR18				0x0048
+#define CSR18_SIFS			FIELD32(0x000001ff)
+#define CSR18_PIFS			FIELD32(0x001f0000)
+
+/*
+ * CSR19: IFS timer register 1.
+ * DIFS: Difs, default is 50 us.
+ * EIFS: Eifs, default is 364 us.
+ */
+#define CSR19				0x004c
+#define CSR19_DIFS			FIELD32(0x0000ffff)
+#define CSR19_EIFS			FIELD32(0xffff0000)
+
+/*
+ * CSR20: Wakeup timer register.
+ * DELAY_AFTER_TBCN: Delay after tbcn expired in units of 1/16 TU.
+ * TBCN_BEFORE_WAKEUP: Number of beacon before wakeup.
+ * AUTOWAKE: Enable auto wakeup / sleep mechanism.
+ */
+#define CSR20				0x0050
+#define CSR20_DELAY_AFTER_TBCN		FIELD32(0x0000ffff)
+#define CSR20_TBCN_BEFORE_WAKEUP	FIELD32(0x00ff0000)
+#define CSR20_AUTOWAKE			FIELD32(0x01000000)
+
+/*
+ * CSR21: EEPROM control register.
+ * RELOAD: Write 1 to reload eeprom content.
+ * TYPE_93C46: 1: 93c46, 0:93c66.
+ */
+#define CSR21				0x0054
+#define CSR21_RELOAD			FIELD32(0x00000001)
+#define CSR21_EEPROM_DATA_CLOCK		FIELD32(0x00000002)
+#define CSR21_EEPROM_CHIP_SELECT	FIELD32(0x00000004)
+#define CSR21_EEPROM_DATA_IN		FIELD32(0x00000008)
+#define CSR21_EEPROM_DATA_OUT		FIELD32(0x00000010)
+#define CSR21_TYPE_93C46		FIELD32(0x00000020)
+
+/*
+ * CSR22: CFP control register.
+ * CFP_DURATION_REMAIN: Cfp duration remain, in units of TU.
+ * RELOAD_CFP_DURATION: Write 1 to reload cfp duration remain.
+ */
+#define CSR22				0x0058
+#define CSR22_CFP_DURATION_REMAIN	FIELD32(0x0000ffff)
+#define CSR22_RELOAD_CFP_DURATION	FIELD32(0x00010000)
+
+/*
+ * Transmit related CSRs.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * TXCSR0: TX Control Register.
+ * KICK_TX: Kick tx ring.
+ * KICK_ATIM: Kick atim ring.
+ * KICK_PRIO: Kick priority ring.
+ * ABORT: Abort all transmit related ring operation.
+ */
+#define TXCSR0				0x0060
+#define TXCSR0_KICK_TX			FIELD32(0x00000001)
+#define TXCSR0_KICK_ATIM		FIELD32(0x00000002)
+#define TXCSR0_KICK_PRIO		FIELD32(0x00000004)
+#define TXCSR0_ABORT			FIELD32(0x00000008)
+
+/*
+ * TXCSR1: TX Configuration Register.
+ * ACK_TIMEOUT: Ack timeout, default = sifs + 2*slottime + acktime @ 1mbps.
+ * ACK_CONSUME_TIME: Ack consume time, default = sifs + acktime @ 1mbps.
+ * TSF_OFFSET: Insert tsf offset.
+ * AUTORESPONDER: Enable auto responder which include ack & cts.
+ */
+#define TXCSR1				0x0064
+#define TXCSR1_ACK_TIMEOUT		FIELD32(0x000001ff)
+#define TXCSR1_ACK_CONSUME_TIME		FIELD32(0x0003fe00)
+#define TXCSR1_TSF_OFFSET		FIELD32(0x00fc0000)
+#define TXCSR1_AUTORESPONDER		FIELD32(0x01000000)
+
+/*
+ * TXCSR2: Tx descriptor configuration register.
+ * TXD_SIZE: Tx descriptor size, default is 48.
+ * NUM_TXD: Number of tx entries in ring.
+ * NUM_ATIM: Number of atim entries in ring.
+ * NUM_PRIO: Number of priority entries in ring.
+ */
+#define TXCSR2				0x0068
+#define TXCSR2_TXD_SIZE			FIELD32(0x000000ff)
+#define TXCSR2_NUM_TXD			FIELD32(0x0000ff00)
+#define TXCSR2_NUM_ATIM			FIELD32(0x00ff0000)
+#define TXCSR2_NUM_PRIO			FIELD32(0xff000000)
+
+/*
+ * TXCSR3: TX Ring Base address register.
+ */
+#define TXCSR3				0x006c
+#define TXCSR3_TX_RING_REGISTER		FIELD32(0xffffffff)
+
+/*
+ * TXCSR4: TX Atim Ring Base address register.
+ */
+#define TXCSR4				0x0070
+#define TXCSR4_ATIM_RING_REGISTER	FIELD32(0xffffffff)
+
+/*
+ * TXCSR5: TX Prio Ring Base address register.
+ */
+#define TXCSR5				0x0074
+#define TXCSR5_PRIO_RING_REGISTER	FIELD32(0xffffffff)
+
+/*
+ * TXCSR6: Beacon Base address register.
+ */
+#define TXCSR6				0x0078
+#define TXCSR6_BEACON_RING_REGISTER	FIELD32(0xffffffff)
+
+/*
+ * TXCSR7: Auto responder control register.
+ * AR_POWERMANAGEMENT: Auto responder power management bit.
+ */
+#define TXCSR7				0x007c
+#define TXCSR7_AR_POWERMANAGEMENT	FIELD32(0x00000001)
+
+/*
+ * TXCSR8: CCK Tx BBP register.
+ * CCK_SIGNAL: BBP rate field address for CCK.
+ * CCK_SERVICE: BBP service field address for CCK.
+ * CCK_LENGTH_LOW: BBP length low byte address for CCK.
+ * CCK_LENGTH_HIGH: BBP length high byte address for CCK.
+ */
+#define TXCSR8				0x0098
+#define TXCSR8_CCK_SIGNAL		FIELD32(0x000000ff)
+#define TXCSR8_CCK_SERVICE		FIELD32(0x0000ff00)
+#define TXCSR8_CCK_LENGTH_LOW		FIELD32(0x00ff0000)
+#define TXCSR8_CCK_LENGTH_HIGH		FIELD32(0xff000000)
+
+/*
+ * TXCSR9: OFDM TX BBP registers
+ * OFDM_SIGNAL: BBP rate field address for OFDM.
+ * OFDM_SERVICE: BBP service field address for OFDM.
+ * OFDM_LENGTH_LOW: BBP length low byte address for OFDM.
+ * OFDM_LENGTH_HIGH: BBP length high byte address for OFDM.
+ */
+#define TXCSR9				0x0094
+#define TXCSR9_OFDM_RATE		FIELD32(0x000000ff)
+#define TXCSR9_OFDM_SERVICE		FIELD32(0x0000ff00)
+#define TXCSR9_OFDM_LENGTH_LOW		FIELD32(0x00ff0000)
+#define TXCSR9_OFDM_LENGTH_HIGH		FIELD32(0xff000000)
+
+/*
+ * Receive related CSRs.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * RXCSR0: RX Control Register.
+ * DISABLE_RX: Disable rx engine.
+ * DROP_CRC: Drop crc error.
+ * DROP_PHYSICAL: Drop physical error.
+ * DROP_CONTROL: Drop control frame.
+ * DROP_NOT_TO_ME: Drop not to me unicast frame.
+ * DROP_TODS: Drop frame tods bit is true.
+ * DROP_VERSION_ERROR: Drop version error frame.
+ * PASS_CRC: Pass all packets with crc attached.
+ * PASS_CRC: Pass all packets with crc attached.
+ * PASS_PLCP: Pass all packets with 4 bytes PLCP attached.
+ * DROP_MCAST: Drop multicast frames.
+ * DROP_BCAST: Drop broadcast frames.
+ * ENABLE_QOS: Accept QOS data frame and parse QOS field.
+ */
+#define RXCSR0				0x0080
+#define RXCSR0_DISABLE_RX		FIELD32(0x00000001)
+#define RXCSR0_DROP_CRC			FIELD32(0x00000002)
+#define RXCSR0_DROP_PHYSICAL		FIELD32(0x00000004)
+#define RXCSR0_DROP_CONTROL		FIELD32(0x00000008)
+#define RXCSR0_DROP_NOT_TO_ME		FIELD32(0x00000010)
+#define RXCSR0_DROP_TODS		FIELD32(0x00000020)
+#define RXCSR0_DROP_VERSION_ERROR	FIELD32(0x00000040)
+#define RXCSR0_PASS_CRC			FIELD32(0x00000080)
+#define RXCSR0_PASS_PLCP		FIELD32(0x00000100)
+#define RXCSR0_DROP_MCAST		FIELD32(0x00000200)
+#define RXCSR0_DROP_BCAST		FIELD32(0x00000400)
+#define RXCSR0_ENABLE_QOS		FIELD32(0x00000800)
+
+/*
+ * RXCSR1: RX descriptor configuration register.
+ * RXD_SIZE: Rx descriptor size, default is 32b.
+ * NUM_RXD: Number of rx entries in ring.
+ */
+#define RXCSR1				0x0084
+#define RXCSR1_RXD_SIZE			FIELD32(0x000000ff)
+#define RXCSR1_NUM_RXD			FIELD32(0x0000ff00)
+
+/*
+ * RXCSR2: RX Ring base address register.
+ */
+#define RXCSR2				0x0088
+#define RXCSR2_RX_RING_REGISTER		FIELD32(0xffffffff)
+
+/*
+ * RXCSR3: BBP ID register for Rx operation.
+ * BBP_ID#: BBP register # id.
+ * BBP_ID#_VALID: BBP register # id is valid or not.
+ */
+#define RXCSR3				0x0090
+#define RXCSR3_BBP_ID0			FIELD32(0x0000007f)
+#define RXCSR3_BBP_ID0_VALID		FIELD32(0x00000080)
+#define RXCSR3_BBP_ID1			FIELD32(0x00007f00)
+#define RXCSR3_BBP_ID1_VALID		FIELD32(0x00008000)
+#define RXCSR3_BBP_ID2			FIELD32(0x007f0000)
+#define RXCSR3_BBP_ID2_VALID		FIELD32(0x00800000)
+#define RXCSR3_BBP_ID3			FIELD32(0x7f000000)
+#define RXCSR3_BBP_ID3_VALID		FIELD32(0x80000000)
+
+/*
+ * ARCSR1: Auto Responder PLCP config register 1.
+ * AR_BBP_DATA#: Auto responder BBP register # data.
+ * AR_BBP_ID#: Auto responder BBP register # Id.
+ */
+#define ARCSR1				0x009c
+#define ARCSR1_AR_BBP_DATA2		FIELD32(0x000000ff)
+#define ARCSR1_AR_BBP_ID2		FIELD32(0x0000ff00)
+#define ARCSR1_AR_BBP_DATA3		FIELD32(0x00ff0000)
+#define ARCSR1_AR_BBP_ID3		FIELD32(0xff000000)
+
+/*
+ * Miscellaneous Registers.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+
+ */
+
+/*
+ * PCICSR: PCI control register.
+ * BIG_ENDIAN: 1: big endian, 0: little endian.
+ * RX_TRESHOLD: Rx threshold in dw to start pci access
+ * 0: 16dw (default), 1: 8dw, 2: 4dw, 3: 32dw.
+ * TX_TRESHOLD: Tx threshold in dw to start pci access
+ * 0: 0dw (default), 1: 1dw, 2: 4dw, 3: forward.
+ * BURST_LENTH: Pci burst length 0: 4dw (default, 1: 8dw, 2: 16dw, 3:32dw.
+ * ENABLE_CLK: Enable clk_run, pci clock can't going down to non-operational.
+ * READ_MULTIPLE: Enable memory read multiple.
+ * WRITE_INVALID: Enable memory write & invalid.
+ */
+#define PCICSR				0x008c
+#define PCICSR_BIG_ENDIAN		FIELD32(0x00000001)
+#define PCICSR_RX_TRESHOLD		FIELD32(0x00000006)
+#define PCICSR_TX_TRESHOLD		FIELD32(0x00000018)
+#define PCICSR_BURST_LENTH		FIELD32(0x00000060)
+#define PCICSR_ENABLE_CLK		FIELD32(0x00000080)
+#define PCICSR_READ_MULTIPLE		FIELD32(0x00000100)
+#define PCICSR_WRITE_INVALID		FIELD32(0x00000200)
+
+/*
+ * CNT0: FCS error count.
+ * FCS_ERROR: FCS error count, cleared when read.
+ */
+#define CNT0				0x00a0
+#define CNT0_FCS_ERROR			FIELD32(0x0000ffff)
+
+/*
+ * Statistic Register.
+ * CNT1: PLCP error count.
+ * CNT2: Long error count.
+ */
+#define TIMECSR2			0x00a8
+#define CNT1				0x00ac
+#define CNT2				0x00b0
+#define TIMECSR3			0x00b4
+
+/*
+ * CNT3: CCA false alarm count.
+ */
+#define CNT3				0x00b8
+#define CNT3_FALSE_CCA			FIELD32(0x0000ffff)
+
+/*
+ * Statistic Register.
+ * CNT4: Rx FIFO overflow count.
+ * CNT5: Tx FIFO underrun count.
+ */
+#define CNT4				0x00bc
+#define CNT5				0x00c0
+
+/*
+ * Baseband Control Register.
+ */
+
+/*
+ * PWRCSR0: Power mode configuration register.
+ */
+#define PWRCSR0				0x00c4
+
+/*
+ * Power state transition time registers.
+ */
+#define PSCSR0				0x00c8
+#define PSCSR1				0x00cc
+#define PSCSR2				0x00d0
+#define PSCSR3				0x00d4
+
+/*
+ * PWRCSR1: Manual power control / status register.
+ * Allowed state: 0 deep_sleep, 1: sleep, 2: standby, 3: awake.
+ * SET_STATE: Set state. Write 1 to trigger, self cleared.
+ * BBP_DESIRE_STATE: BBP desired state.
+ * RF_DESIRE_STATE: RF desired state.
+ * BBP_CURR_STATE: BBP current state.
+ * RF_CURR_STATE: RF current state.
+ * PUT_TO_SLEEP: Put to sleep. Write 1 to trigger, self cleared.
+ */
+#define PWRCSR1				0x00d8
+#define PWRCSR1_SET_STATE		FIELD32(0x00000001)
+#define PWRCSR1_BBP_DESIRE_STATE	FIELD32(0x00000006)
+#define PWRCSR1_RF_DESIRE_STATE		FIELD32(0x00000018)
+#define PWRCSR1_BBP_CURR_STATE		FIELD32(0x00000060)
+#define PWRCSR1_RF_CURR_STATE		FIELD32(0x00000180)
+#define PWRCSR1_PUT_TO_SLEEP		FIELD32(0x00000200)
+
+/*
+ * TIMECSR: Timer control register.
+ * US_COUNT: 1 us timer count in units of clock cycles.
+ * US_64_COUNT: 64 us timer count in units of 1 us timer.
+ * BEACON_EXPECT: Beacon expect window.
+ */
+#define TIMECSR				0x00dc
+#define TIMECSR_US_COUNT		FIELD32(0x000000ff)
+#define TIMECSR_US_64_COUNT		FIELD32(0x0000ff00)
+#define TIMECSR_BEACON_EXPECT		FIELD32(0x00070000)
+
+/*
+ * MACCSR0: MAC configuration register 0.
+ */
+#define MACCSR0				0x00e0
+
+/*
+ * MACCSR1: MAC configuration register 1.
+ * KICK_RX: Kick one-shot rx in one-shot rx mode.
+ * ONESHOT_RXMODE: Enable one-shot rx mode for debugging.
+ * BBPRX_RESET_MODE: Ralink bbp rx reset mode.
+ * AUTO_TXBBP: Auto tx logic access bbp control register.
+ * AUTO_RXBBP: Auto rx logic access bbp control register.
+ * LOOPBACK: Loopback mode. 0: normal, 1: internal, 2: external, 3:rsvd.
+ * INTERSIL_IF: Intersil if calibration pin.
+ */
+#define MACCSR1				0x00e4
+#define MACCSR1_KICK_RX			FIELD32(0x00000001)
+#define MACCSR1_ONESHOT_RXMODE		FIELD32(0x00000002)
+#define MACCSR1_BBPRX_RESET_MODE	FIELD32(0x00000004)
+#define MACCSR1_AUTO_TXBBP		FIELD32(0x00000008)
+#define MACCSR1_AUTO_RXBBP		FIELD32(0x00000010)
+#define MACCSR1_LOOPBACK		FIELD32(0x00000060)
+#define MACCSR1_INTERSIL_IF		FIELD32(0x00000080)
+
+/*
+ * RALINKCSR: Ralink Rx auto-reset BBCR.
+ * AR_BBP_DATA#: Auto reset BBP register # data.
+ * AR_BBP_ID#: Auto reset BBP register # id.
+ */
+#define RALINKCSR			0x00e8
+#define RALINKCSR_AR_BBP_DATA0		FIELD32(0x000000ff)
+#define RALINKCSR_AR_BBP_ID0		FIELD32(0x00007f00)
+#define RALINKCSR_AR_BBP_VALID0		FIELD32(0x00008000)
+#define RALINKCSR_AR_BBP_DATA1		FIELD32(0x00ff0000)
+#define RALINKCSR_AR_BBP_ID1		FIELD32(0x7f000000)
+#define RALINKCSR_AR_BBP_VALID1		FIELD32(0x80000000)
+
+/*
+ * BCNCSR: Beacon interval control register.
+ * CHANGE: Write one to change beacon interval.
+ * DELTATIME: The delta time value.
+ * NUM_BEACON: Number of beacon according to mode.
+ * MODE: Please refer to asic specs.
+ * PLUS: Plus or minus delta time value.
+ */
+#define BCNCSR				0x00ec
+#define BCNCSR_CHANGE			FIELD32(0x00000001)
+#define BCNCSR_DELTATIME		FIELD32(0x0000001e)
+#define BCNCSR_NUM_BEACON		FIELD32(0x00001fe0)
+#define BCNCSR_MODE			FIELD32(0x00006000)
+#define BCNCSR_PLUS			FIELD32(0x00008000)
+
+/*
+ * BBP / RF / IF Control Register.
+ */
+
+/*
+ * BBPCSR: BBP serial control register.
+ * VALUE: Register value to program into BBP.
+ * REGNUM: Selected BBP register.
+ * BUSY: 1: asic is busy execute BBP programming.
+ * WRITE_CONTROL: 1: write BBP, 0: read BBP.
+ */
+#define BBPCSR				0x00f0
+#define BBPCSR_VALUE			FIELD32(0x000000ff)
+#define BBPCSR_REGNUM			FIELD32(0x00007f00)
+#define BBPCSR_BUSY			FIELD32(0x00008000)
+#define BBPCSR_WRITE_CONTROL		FIELD32(0x00010000)
+
+/*
+ * RFCSR: RF serial control register.
+ * VALUE: Register value + id to program into rf/if.
+ * NUMBER_OF_BITS: Number of bits used in value (i:20, rfmd:22).
+ * IF_SELECT: Chip to program: 0: rf, 1: if.
+ * PLL_LD: Rf pll_ld status.
+ * BUSY: 1: asic is busy execute rf programming.
+ */
+#define RFCSR				0x00f4
+#define RFCSR_VALUE			FIELD32(0x00ffffff)
+#define RFCSR_NUMBER_OF_BITS		FIELD32(0x1f000000)
+#define RFCSR_IF_SELECT			FIELD32(0x20000000)
+#define RFCSR_PLL_LD			FIELD32(0x40000000)
+#define RFCSR_BUSY			FIELD32(0x80000000)
+
+/*
+ * LEDCSR: LED control register.
+ * ON_PERIOD: On period, default 70ms.
+ * OFF_PERIOD: Off period, default 30ms.
+ * LINK: 0: linkoff, 1: linkup.
+ * ACTIVITY: 0: idle, 1: active.
+ * LINK_POLARITY: 0: active low, 1: active high.
+ * ACTIVITY_POLARITY: 0: active low, 1: active high.
+ * LED_DEFAULT: LED state for "enable" 0: ON, 1: OFF.
+ */
+#define LEDCSR				0x00f8
+#define LEDCSR_ON_PERIOD		FIELD32(0x000000ff)
+#define LEDCSR_OFF_PERIOD		FIELD32(0x0000ff00)
+#define LEDCSR_LINK			FIELD32(0x00010000)
+#define LEDCSR_ACTIVITY			FIELD32(0x00020000)
+#define LEDCSR_LINK_POLARITY		FIELD32(0x00040000)
+#define LEDCSR_ACTIVITY_POLARITY	FIELD32(0x00080000)
+#define LEDCSR_LED_DEFAULT		FIELD32(0x00100000)
+
+/*
+ * AES control register.
+ */
+#define SECCSR3				0x00fc
+
+/*
+ * ASIC pointer information.
+ * RXPTR: Current RX ring address.
+ * TXPTR: Current Tx ring address.
+ * PRIPTR: Current Priority ring address.
+ * ATIMPTR: Current ATIM ring address.
+ */
+#define RXPTR				0x0100
+#define TXPTR				0x0104
+#define PRIPTR				0x0108
+#define ATIMPTR				0x010c
+
+/*
+ * TXACKCSR0: TX ACK timeout.
+ */
+#define TXACKCSR0			0x0110
+
+/*
+ * ACK timeout count registers.
+ * ACKCNT0: TX ACK timeout count.
+ * ACKCNT1: RX ACK timeout count.
+ */
+#define ACKCNT0				0x0114
+#define ACKCNT1				0x0118
+
+/*
+ * GPIO and others.
+ */
+
+/*
+ * GPIOCSR: GPIO control register.
+ */
+#define GPIOCSR				0x0120
+#define GPIOCSR_BIT0			FIELD32(0x00000001)
+#define GPIOCSR_BIT1			FIELD32(0x00000002)
+#define GPIOCSR_BIT2			FIELD32(0x00000004)
+#define GPIOCSR_BIT3			FIELD32(0x00000008)
+#define GPIOCSR_BIT4			FIELD32(0x00000010)
+#define GPIOCSR_BIT5			FIELD32(0x00000020)
+#define GPIOCSR_BIT6			FIELD32(0x00000040)
+#define GPIOCSR_BIT7			FIELD32(0x00000080)
+#define GPIOCSR_DIR0			FIELD32(0x00000100)
+#define GPIOCSR_DIR1			FIELD32(0x00000200)
+#define GPIOCSR_DIR2			FIELD32(0x00000400)
+#define GPIOCSR_DIR3			FIELD32(0x00000800)
+#define GPIOCSR_DIR4			FIELD32(0x00001000)
+#define GPIOCSR_DIR5			FIELD32(0x00002000)
+#define GPIOCSR_DIR6			FIELD32(0x00004000)
+#define GPIOCSR_DIR7			FIELD32(0x00008000)
+
+/*
+ * FIFO pointer registers.
+ * FIFOCSR0: TX FIFO pointer.
+ * FIFOCSR1: RX FIFO pointer.
+ */
+#define FIFOCSR0			0x0128
+#define FIFOCSR1			0x012c
+
+/*
+ * BCNCSR1: Tx BEACON offset time control register.
+ * PRELOAD: Beacon timer offset in units of usec.
+ * BEACON_CWMIN: 2^CwMin.
+ */
+#define BCNCSR1				0x0130
+#define BCNCSR1_PRELOAD			FIELD32(0x0000ffff)
+#define BCNCSR1_BEACON_CWMIN		FIELD32(0x000f0000)
+
+/*
+ * MACCSR2: TX_PE to RX_PE turn-around time control register
+ * DELAY: RX_PE low width, in units of pci clock cycle.
+ */
+#define MACCSR2				0x0134
+#define MACCSR2_DELAY			FIELD32(0x000000ff)
+
+/*
+ * TESTCSR: TEST mode selection register.
+ */
+#define TESTCSR				0x0138
+
+/*
+ * ARCSR2: 1 Mbps ACK/CTS PLCP.
+ */
+#define ARCSR2				0x013c
+#define ARCSR2_SIGNAL			FIELD32(0x000000ff)
+#define ARCSR2_SERVICE			FIELD32(0x0000ff00)
+#define ARCSR2_LENGTH			FIELD32(0xffff0000)
+
+/*
+ * ARCSR3: 2 Mbps ACK/CTS PLCP.
+ */
+#define ARCSR3				0x0140
+#define ARCSR3_SIGNAL			FIELD32(0x000000ff)
+#define ARCSR3_SERVICE			FIELD32(0x0000ff00)
+#define ARCSR3_LENGTH			FIELD32(0xffff0000)
+
+/*
+ * ARCSR4: 5.5 Mbps ACK/CTS PLCP.
+ */
+#define ARCSR4				0x0144
+#define ARCSR4_SIGNAL			FIELD32(0x000000ff)
+#define ARCSR4_SERVICE			FIELD32(0x0000ff00)
+#define ARCSR4_LENGTH			FIELD32(0xffff0000)
+
+/*
+ * ARCSR5: 11 Mbps ACK/CTS PLCP.
+ */
+#define ARCSR5				0x0148
+#define ARCSR5_SIGNAL			FIELD32(0x000000ff)
+#define ARCSR5_SERVICE			FIELD32(0x0000ff00)
+#define ARCSR5_LENGTH			FIELD32(0xffff0000)
+
+/*
+ * ACK/CTS payload consumed time registers.
+ * ARTCSR0: CCK ACK/CTS payload consumed time for 1/2/5.5/11 mbps.
+ * ARTCSR1: OFDM ACK/CTS payload consumed time for 6/9/12/18 mbps.
+ * ARTCSR2: OFDM ACK/CTS payload consumed time for 24/36/48/54 mbps.
+ */
+#define ARTCSR0				0x014c
+#define ARTCSR1				0x0150
+#define ARTCSR2				0x0154
+
+/*
+ * SECCSR1_RT2509: WEP control register.
+ * KICK_ENCRYPT: Kick encryption engine, self-clear.
+ * ONE_SHOT: 0: ring mode, 1: One shot only mode.
+ * DESC_ADDRESS: Descriptor physical address of frame.
+ */
+#define SECCSR1				0x0158
+#define SECCSR1_KICK_ENCRYPT		FIELD32(0x00000001)
+#define SECCSR1_ONE_SHOT		FIELD32(0x00000002)
+#define SECCSR1_DESC_ADDRESS		FIELD32(0xfffffffc)
+
+/*
+ * BBPCSR1: BBP TX configuration.
+ */
+#define BBPCSR1				0x015c
+#define BBPCSR1_CCK			FIELD32(0x00000003)
+#define BBPCSR1_CCK_FLIP		FIELD32(0x00000004)
+#define BBPCSR1_OFDM			FIELD32(0x00030000)
+#define BBPCSR1_OFDM_FLIP		FIELD32(0x00040000)
+
+/*
+ * Dual band configuration registers.
+ * DBANDCSR0: Dual band configuration register 0.
+ * DBANDCSR1: Dual band configuration register 1.
+ */
+#define DBANDCSR0			0x0160
+#define DBANDCSR1			0x0164
+
+/*
+ * BBPPCSR: BBP Pin control register.
+ */
+#define BBPPCSR				0x0168
+
+/*
+ * MAC special debug mode selection registers.
+ * DBGSEL0: MAC special debug mode selection register 0.
+ * DBGSEL1: MAC special debug mode selection register 1.
+ */
+#define DBGSEL0				0x016c
+#define DBGSEL1				0x0170
+
+/*
+ * BISTCSR: BBP BIST register.
+ */
+#define BISTCSR				0x0174
+
+/*
+ * Multicast filter registers.
+ * MCAST0: Multicast filter register 0.
+ * MCAST1: Multicast filter register 1.
+ */
+#define MCAST0				0x0178
+#define MCAST1				0x017c
+
+/*
+ * UART registers.
+ * UARTCSR0: UART1 TX register.
+ * UARTCSR1: UART1 RX register.
+ * UARTCSR3: UART1 frame control register.
+ * UARTCSR4: UART1 buffer control register.
+ * UART2CSR0: UART2 TX register.
+ * UART2CSR1: UART2 RX register.
+ * UART2CSR3: UART2 frame control register.
+ * UART2CSR4: UART2 buffer control register.
+ */
+#define UARTCSR0			0x0180
+#define UARTCSR1			0x0184
+#define UARTCSR3			0x0188
+#define UARTCSR4			0x018c
+#define UART2CSR0			0x0190
+#define UART2CSR1			0x0194
+#define UART2CSR3			0x0198
+#define UART2CSR4			0x019c
+
+/*
+ * RF registers
+ */
+#define RF1_TUNER			FIELD32(0x00020000)
+#define RF3_TUNER			FIELD32(0x00000100)
+#define RF3_TXPOWER			FIELD32(0x00003e00)
+
+/*
+ * EEPROM content.
+ * The wordsize of the EEPROM is 16 bits.
+ */
+
+/*
+ * HW MAC address.
+ */
+#define EEPROM_MAC_ADDR_0		0x0002
+#define EEPROM_MAC_ADDR_BYTE0		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE1		FIELD16(0xff00)
+#define EEPROM_MAC_ADDR1		0x0003
+#define EEPROM_MAC_ADDR_BYTE2		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE3		FIELD16(0xff00)
+#define EEPROM_MAC_ADDR_2		0x0004
+#define EEPROM_MAC_ADDR_BYTE4		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE5		FIELD16(0xff00)
+
+/*
+ * EEPROM antenna.
+ * ANTENNA_NUM: Number of antenna's.
+ * TX_DEFAULT: Default antenna 0: diversity, 1: A, 2: B.
+ * RX_DEFAULT: Default antenna 0: diversity, 1: A, 2: B.
+ * LED_MODE: 0: default, 1: TX/RX activity,2: Single (ignore link), 3: rsvd.
+ * DYN_TXAGC: Dynamic TX AGC control.
+ * HARDWARE_RADIO: 1: Hardware controlled radio. Read GPIO0.
+ * RF_TYPE: Rf_type of this adapter.
+ */
+#define EEPROM_ANTENNA			0x10
+#define EEPROM_ANTENNA_NUM		FIELD16(0x0003)
+#define EEPROM_ANTENNA_TX_DEFAULT	FIELD16(0x000c)
+#define EEPROM_ANTENNA_RX_DEFAULT	FIELD16(0x0030)
+#define EEPROM_ANTENNA_LED_MODE		FIELD16(0x01c0)
+#define EEPROM_ANTENNA_DYN_TXAGC	FIELD16(0x0200)
+#define EEPROM_ANTENNA_HARDWARE_RADIO	FIELD16(0x0400)
+#define EEPROM_ANTENNA_RF_TYPE		FIELD16(0xf800)
+
+/*
+ * EEPROM NIC config.
+ * CARDBUS_ACCEL: 0: enable, 1: disable.
+ * DYN_BBP_TUNE: 0: enable, 1: disable.
+ * CCK_TX_POWER: CCK TX power compensation.
+ */
+#define EEPROM_NIC			0x11
+#define EEPROM_NIC_CARDBUS_ACCEL	FIELD16(0x0001)
+#define EEPROM_NIC_DYN_BBP_TUNE		FIELD16(0x0002)
+#define EEPROM_NIC_CCK_TX_POWER		FIELD16(0x000c)
+
+/*
+ * EEPROM geography.
+ * GEO: Default geography setting for device.
+ */
+#define EEPROM_GEOGRAPHY		0x12
+#define EEPROM_GEOGRAPHY_GEO		FIELD16(0x0f00)
+
+/*
+ * EEPROM BBP.
+ */
+#define EEPROM_BBP_START		0x13
+#define EEPROM_BBP_SIZE			16
+#define EEPROM_BBP_VALUE		FIELD16(0x00ff)
+#define EEPROM_BBP_REG_ID		FIELD16(0xff00)
+
+/*
+ * EEPROM TXPOWER
+ */
+#define EEPROM_TXPOWER_START		0x23
+#define EEPROM_TXPOWER_SIZE		7
+#define EEPROM_TXPOWER_1		FIELD16(0x00ff)
+#define EEPROM_TXPOWER_2		FIELD16(0xff00)
+
+/*
+ * RSSI <-> dBm offset calibration
+ */
+#define EEPROM_CALIBRATE_OFFSET		0x3e
+#define EEPROM_CALIBRATE_OFFSET_RSSI	FIELD16(0x00ff)
+
+/*
+ * BBP content.
+ * The wordsize of the BBP is 8 bits.
+ */
+
+/*
+ * BBP_R2: TX antenna control
+ */
+#define BBP_R2_TX_ANTENNA		FIELD8(0x03)
+#define BBP_R2_TX_IQ_FLIP		FIELD8(0x04)
+
+/*
+ * BBP_R14: RX antenna control
+ */
+#define BBP_R14_RX_ANTENNA		FIELD8(0x03)
+#define BBP_R14_RX_IQ_FLIP		FIELD8(0x04)
+
+/*
+ * DMA descriptor defines.
+ */
+#define TXD_DESC_SIZE			( 11 * sizeof(struct data_desc) )
+#define RXD_DESC_SIZE			( 11 * sizeof(struct data_desc) )
+
+/*
+ * TX descriptor format for TX, PRIO, ATIM and Beacon Ring.
+ */
+
+/*
+ * Word0
+ */
+#define TXD_W0_OWNER_NIC		FIELD32(0x00000001)
+#define TXD_W0_VALID			FIELD32(0x00000002)
+#define TXD_W0_RESULT			FIELD32(0x0000001c)
+#define TXD_W0_RETRY_COUNT		FIELD32(0x000000e0)
+#define TXD_W0_MORE_FRAG		FIELD32(0x00000100)
+#define TXD_W0_ACK			FIELD32(0x00000200)
+#define TXD_W0_TIMESTAMP		FIELD32(0x00000400)
+#define TXD_W0_OFDM			FIELD32(0x00000800)
+#define TXD_W0_CIPHER_OWNER		FIELD32(0x00001000)
+#define TXD_W0_IFS			FIELD32(0x00006000)
+#define TXD_W0_RETRY_MODE		FIELD32(0x00008000)
+#define TXD_W0_DATABYTE_COUNT		FIELD32(0x0fff0000)
+#define TXD_W0_CIPHER_ALG		FIELD32(0xe0000000)
+
+/*
+ * Word1
+ */
+#define TXD_W1_BUFFER_ADDRESS		FIELD32(0xffffffff)
+
+/*
+ * Word2
+ */
+#define TXD_W2_IV_OFFSET		FIELD32(0x0000003f)
+#define TXD_W2_AIFS			FIELD32(0x000000c0)
+#define TXD_W2_CWMIN			FIELD32(0x00000f00)
+#define TXD_W2_CWMAX			FIELD32(0x0000f000)
+
+/*
+ * Word3: PLCP information
+ */
+#define TXD_W3_PLCP_SIGNAL		FIELD32(0x000000ff)
+#define TXD_W3_PLCP_SERVICE		FIELD32(0x0000ff00)
+#define TXD_W3_PLCP_LENGTH_LOW		FIELD32(0x00ff0000)
+#define TXD_W3_PLCP_LENGTH_HIGH		FIELD32(0xff000000)
+
+/*
+ * Word4
+ */
+#define TXD_W4_IV			FIELD32(0xffffffff)
+
+/*
+ * Word5
+ */
+#define TXD_W5_EIV			FIELD32(0xffffffff)
+
+/*
+ * Word6-9: Key
+ */
+#define TXD_W6_KEY			FIELD32(0xffffffff)
+#define TXD_W7_KEY			FIELD32(0xffffffff)
+#define TXD_W8_KEY			FIELD32(0xffffffff)
+#define TXD_W9_KEY			FIELD32(0xffffffff)
+
+/*
+ * Word10
+ */
+#define TXD_W10_RTS			FIELD32(0x00000001)
+#define TXD_W10_TX_RATE			FIELD32(0x000000fe)
+
+/*
+ * RX descriptor format for RX Ring.
+ */
+
+/*
+ * Word0
+ */
+#define RXD_W0_OWNER_NIC		FIELD32(0x00000001)
+#define RXD_W0_UNICAST_TO_ME		FIELD32(0x00000002)
+#define RXD_W0_MULTICAST		FIELD32(0x00000004)
+#define RXD_W0_BROADCAST		FIELD32(0x00000008)
+#define RXD_W0_MY_BSS			FIELD32(0x00000010)
+#define RXD_W0_CRC			FIELD32(0x00000020)
+#define RXD_W0_OFDM			FIELD32(0x00000040)
+#define RXD_W0_PHYSICAL_ERROR		FIELD32(0x00000080)
+#define RXD_W0_CIPHER_OWNER		FIELD32(0x00000100)
+#define RXD_W0_ICV_ERROR		FIELD32(0x00000200)
+#define RXD_W0_IV_OFFSET		FIELD32(0x0000fc00)
+#define RXD_W0_DATABYTE_COUNT		FIELD32(0x0fff0000)
+#define RXD_W0_CIPHER_ALG		FIELD32(0xe0000000)
+
+/*
+ * Word1
+ */
+#define RXD_W1_BUFFER_ADDRESS		FIELD32(0xffffffff)
+
+/*
+ * Word2
+ */
+#define RXD_W2_SIGNAL			FIELD32(0x000000ff)
+#define RXD_W2_RSSI			FIELD32(0x0000ff00)
+#define RXD_W2_TA			FIELD32(0xffff0000)
+
+/*
+ * Word3
+ */
+#define RXD_W3_TA			FIELD32(0xffffffff)
+
+/*
+ * Word4
+ */
+#define RXD_W4_IV			FIELD32(0xffffffff)
+
+/*
+ * Word5
+ */
+#define RXD_W5_EIV			FIELD32(0xffffffff)
+
+/*
+ * Word6-9: Key
+ */
+#define RXD_W6_KEY			FIELD32(0xffffffff)
+#define RXD_W7_KEY			FIELD32(0xffffffff)
+#define RXD_W8_KEY			FIELD32(0xffffffff)
+#define RXD_W9_KEY			FIELD32(0xffffffff)
+
+/*
+ * Word10
+ */
+#define RXD_W10_DROP			FIELD32(0x00000001)
+
+/*
+ * Macro's for converting txpower from EEPROM to dscape value
+ * and from dscape value to register value.
+ */
+#define MIN_TXPOWER	0
+#define MAX_TXPOWER	31
+#define DEFAULT_TXPOWER	24
+
+#define TXPOWER_FROM_DEV(__txpower)		\
+({						\
+	((__txpower) > MAX_TXPOWER) ?		\
+		DEFAULT_TXPOWER : (__txpower);	\
+})
+
+#define TXPOWER_TO_DEV(__txpower)			\
+({							\
+	((__txpower) <= MIN_TXPOWER) ? MIN_TXPOWER :	\
+	(((__txpower) >= MAX_TXPOWER) ? MAX_TXPOWER :	\
+	(__txpower));					\
+})
+
+#endif /* RT2500PCI_H */
diff --git a/package/rt2x00/src/rt2500usb.c b/package/rt2x00/src/rt2500usb.c
new file mode 100644
index 0000000..c5459b5
--- /dev/null
+++ b/package/rt2x00/src/rt2500usb.c
@@ -0,0 +1,1680 @@
+/*
+	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: rt2500usb
+	Abstract: rt2500usb device specific routines.
+	Supported chipsets: RT2570.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2500usb"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/usb.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+
+#include "rt2x00.h"
+#include "rt2x00usb.h"
+#include "rt2500usb.h"
+
+/*
+ * Register access.
+ * All access to the CSR registers will go through the methods
+ * rt2500usb_register_read and rt2500usb_register_write.
+ * BBP and RF register require indirect register access,
+ * and use the CSR registers BBPCSR and RFCSR to achieve this.
+ * These indirect registers work with busy bits,
+ * and we will try maximal REGISTER_BUSY_COUNT times to access
+ * the register while taking a REGISTER_BUSY_DELAY us delay
+ * between each attampt. When the busy bit is still set at that time,
+ * the access attempt is considered to have failed,
+ * and we will print an error.
+ */
+static inline void rt2500usb_register_read(
+	const struct rt2x00_dev *rt2x00dev,
+	const u16 offset, u16 *value)
+{
+	__le16 reg;
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_MULTI_READ, USB_VENDOR_REQUEST_IN,
+		offset, 0x00, &reg, sizeof(u16), REGISTER_TIMEOUT);
+	*value = le16_to_cpu(reg);
+}
+
+static inline void rt2500usb_register_multiread(
+	const struct rt2x00_dev *rt2x00dev,
+	const u16 offset, void *value, const u16 length)
+{
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_MULTI_READ, USB_VENDOR_REQUEST_IN,
+		offset, 0x00, value, length,
+		REGISTER_TIMEOUT * (length / sizeof(u16)));
+}
+
+static inline void rt2500usb_register_write(
+	const struct rt2x00_dev *rt2x00dev,
+	const u16 offset, u16 value)
+{
+	__le16 reg = cpu_to_le16(value);
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_MULTI_WRITE, USB_VENDOR_REQUEST_OUT,
+		offset, 0x00, &reg, sizeof(u16), REGISTER_TIMEOUT);
+}
+
+static inline void rt2500usb_register_multiwrite(
+	const struct rt2x00_dev *rt2x00dev,
+	const u16 offset, void *value, const u16 length)
+{
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_MULTI_WRITE, USB_VENDOR_REQUEST_OUT,
+		offset, 0x00, value, length,
+		REGISTER_TIMEOUT * (length / sizeof(u16)));
+}
+
+static u16 rt2500usb_bbp_check(const struct rt2x00_dev *rt2x00dev)
+{
+	u16 reg;
+	unsigned int i;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2500usb_register_read(rt2x00dev, PHY_CSR8, &reg);
+		if (!rt2x00_get_field16(reg, PHY_CSR8_BUSY))
+			break;
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	return reg;
+}
+
+static void rt2500usb_bbp_write(const struct rt2x00_dev *rt2x00dev,
+	const u8 reg_id, const u8 value)
+{
+	u16 reg;
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt2500usb_bbp_check(rt2x00dev);
+	if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
+		ERROR(rt2x00dev, "PHY_CSR8 register busy. Write failed.\n");
+		return;
+	}
+
+	/*
+	 * Write the data into the BBP.
+	 */
+	reg = 0;
+	rt2x00_set_field16(&reg, PHY_CSR7_DATA, value);
+	rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, reg_id);
+	rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 0);
+
+	rt2500usb_register_write(rt2x00dev, PHY_CSR7, reg);
+}
+
+static void rt2500usb_bbp_read(const struct rt2x00_dev *rt2x00dev,
+	const u8 reg_id, u8 *value)
+{
+	u16 reg;
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt2500usb_bbp_check(rt2x00dev);
+	if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
+		ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
+		return;
+	}
+
+	/*
+	 * Write the request into the BBP.
+	 */
+	reg =0;
+	rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, reg_id);
+	rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 1);
+
+	rt2500usb_register_write(rt2x00dev, PHY_CSR7, reg);
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt2500usb_bbp_check(rt2x00dev);
+	if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
+		ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
+		*value = 0xff;
+		return;
+	}
+
+	rt2500usb_register_read(rt2x00dev, PHY_CSR7, &reg);
+	*value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
+}
+
+static void rt2500usb_rf_write(const struct rt2x00_dev *rt2x00dev,
+	const u32 value)
+{
+	u16 reg;
+	unsigned int i;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2500usb_register_read(rt2x00dev, PHY_CSR10, &reg);
+		if (!rt2x00_get_field16(reg, PHY_CSR10_RF_BUSY))
+			goto rf_write;
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	ERROR(rt2x00dev, "PHY_CSR10 register busy. Write failed.\n");
+	return;
+
+rf_write:
+	reg = 0;
+	rt2x00_set_field16(&reg, PHY_CSR9_RF_VALUE, value);
+	rt2500usb_register_write(rt2x00dev, PHY_CSR9, reg);
+
+	reg = 0;
+	rt2x00_set_field16(&reg, PHY_CSR10_RF_VALUE, value >> 16);
+	rt2x00_set_field16(&reg, PHY_CSR10_RF_NUMBER_OF_BITS, 20);
+	rt2x00_set_field16(&reg, PHY_CSR10_RF_IF_SELECT, 0);
+	rt2x00_set_field16(&reg, PHY_CSR10_RF_BUSY, 1);
+
+	rt2500usb_register_write(rt2x00dev, PHY_CSR10, reg);
+}
+
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+#define CSR_OFFSET(__word)	( CSR_REG_BASE + ((__word) * sizeof(u16)) )
+
+static void rt2500usb_read_csr(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2500usb_register_read(rt2x00dev, CSR_OFFSET(word), data);
+}
+
+static void rt2500usb_write_csr(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2500usb_register_write(rt2x00dev, CSR_OFFSET(word), *((u16*)data));
+}
+
+static void rt2500usb_read_eeprom(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00_eeprom_read(rt2x00dev, word, data);
+}
+
+static void rt2500usb_write_eeprom(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00_eeprom_write(rt2x00dev, word, *((u16*)data));
+}
+
+static void rt2500usb_read_bbp(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2500usb_bbp_read(rt2x00dev, word, data);
+}
+
+static void rt2500usb_write_bbp(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2500usb_bbp_write(rt2x00dev, word, *((u8*)data));
+}
+
+static const struct rt2x00debug rt2500usb_rt2x00debug = {
+	.owner 		= THIS_MODULE,
+	.reg_csr	= {
+		.read		= rt2500usb_read_csr,
+		.write		= rt2500usb_write_csr,
+		.word_size	= sizeof(u16),
+		.word_count	= CSR_REG_SIZE / sizeof(u16),
+	},
+	.reg_eeprom	= {
+		.read		= rt2500usb_read_eeprom,
+		.write		= rt2500usb_write_eeprom,
+		.word_size	= sizeof(u16),
+		.word_count	= EEPROM_SIZE / sizeof(u16),
+	},
+	.reg_bbp	= {
+		.read		= rt2500usb_read_bbp,
+		.write		= rt2500usb_write_bbp,
+		.word_size	= sizeof(u8),
+		.word_count	= BBP_SIZE / sizeof(u8),
+	},
+};
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+
+/*
+ * Configuration handlers.
+ */
+static void rt2500usb_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
+{
+	u16 reg[3];
+
+	memset(&reg, 0, sizeof(reg));
+	memcpy(&reg, bssid, ETH_ALEN);
+
+	/*
+	 * The BSSID is passed to us as an array of bytes,
+	 * that array is little endian, so no need for byte ordering.
+	 */
+	rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, &reg, sizeof(reg));
+}
+
+static void rt2500usb_config_promisc(struct rt2x00_dev *rt2x00dev,
+	const int promisc)
+{
+	u16 reg;
+
+	rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
+	rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME, !promisc);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
+}
+
+static void rt2500usb_config_type(struct rt2x00_dev *rt2x00dev,
+	const int type)
+{
+	u16 reg;
+
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
+
+	/*
+	 * Apply hardware packet filter.
+	 */
+	rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
+
+	if (!is_monitor_present(&rt2x00dev->interface) &&
+	    (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_STA))
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS, 1);
+	else
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS, 0);
+
+	rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC, 1);
+	if (is_monitor_present(&rt2x00dev->interface)) {
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL, 0);
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL, 0);
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 0);
+	} else {
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL, 1);
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL, 1);
+		rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
+	}
+
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
+
+	/*
+	 * Enable beacon config
+	 */
+	rt2500usb_register_read(rt2x00dev, TXRX_CSR20, &reg);
+	rt2x00_set_field16(&reg, TXRX_CSR20_OFFSET,
+		(PREAMBLE + get_duration(IEEE80211_HEADER, 2)) >> 6);
+	if (type == IEEE80211_IF_TYPE_STA)
+		rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW, 0);
+	else
+		rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW, 2);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
+
+	/*
+	 * Enable synchronisation.
+	 */
+	rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
+	rt2x00_set_field16(&reg, TXRX_CSR18_OFFSET, 0);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
+
+	rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
+	if (is_interface_present(&rt2x00dev->interface)) {
+		rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
+		rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
+	}
+
+	rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
+	if (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_AP)
+		rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 2);
+	else if (type == IEEE80211_IF_TYPE_STA)
+		rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 1);
+	else if (is_monitor_present(&rt2x00dev->interface) &&
+		 !is_interface_present(&rt2x00dev->interface))
+		rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 0);
+
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
+}
+
+static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
+	const int value, const int channel, const int txpower)
+{
+	u32 rf1 = rt2x00dev->rf1;
+	u32 rf2 = value;
+	u32 rf3 = rt2x00dev->rf3;
+	u32 rf4 = rt2x00dev->rf4;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF2525))
+		rf2 |= 0x00080000;
+
+	if ((rt2x00_rf(&rt2x00dev->chip, RF2523) ||
+	     rt2x00_rf(&rt2x00dev->chip, RF2524) ||
+	     rt2x00_rf(&rt2x00dev->chip, RF2525)) &&
+	     channel == 14)
+		rf4 &= ~0x00000018;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
+		if (channel & 0x01)
+			rf4 = 0x00000e1b;
+		else
+			rf4 = 0x00000e07;
+		if (channel == 14)
+			rf4 = 0x00000e23;
+	}
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
+		if (channel < 14) {
+			rf1 = 0x00022020;
+			rf4 = 0x00000a0b;
+		} else if (channel == 14) {
+			rf1 = 0x00022010;
+			rf4 = 0x00000a1b;
+		} else if (channel < 64) {
+			rf1 = 0x00022010;
+			rf4 = 0x00000a1f;
+		} else if (channel < 140) {
+			rf1 = 0x00022010;
+			rf4 = 0x00000a0f;
+		} else if (channel < 161) {
+			rf1 = 0x00022020;
+			rf4 = 0x00000a07;
+		}
+	}
+
+	/*
+	 * Set TXpower.
+	 */
+	rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
+
+	/*
+	 * For RT2525E we should first set the channel to half band higher.
+	 */
+	if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
+		static const u32 vals[] = {
+			0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
+			0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
+			0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
+			0x00000902, 0x00000906
+		};
+
+		rt2500usb_rf_write(rt2x00dev, vals[channel - 1]);
+		if (rf4)
+			rt2500usb_rf_write(rt2x00dev, rf4);
+	}
+
+	rt2500usb_rf_write(rt2x00dev, rf1);
+	rt2500usb_rf_write(rt2x00dev, rf2);
+	rt2500usb_rf_write(rt2x00dev, rf3);
+	if (rf4)
+		rt2500usb_rf_write(rt2x00dev, rf4);
+
+	/*
+	 * Update rf fields
+	 */
+	rt2x00dev->rf1 = rf1;
+	rt2x00dev->rf2 = rf2;
+	rt2x00dev->rf3 = rf3;
+	rt2x00dev->rf4 = rf4;
+	rt2x00dev->tx_power = txpower;
+}
+
+static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
+	const int txpower)
+{
+	rt2x00_set_field32(&rt2x00dev->rf3, RF3_TXPOWER,
+		TXPOWER_TO_DEV(txpower));
+	rt2500usb_rf_write(rt2x00dev, rt2x00dev->rf3);
+}
+
+static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
+	const int antenna_tx, const int antenna_rx)
+{
+	u8 r2;
+	u8 r14;
+	u16 csr5;
+	u16 csr6;
+
+	rt2500usb_bbp_read(rt2x00dev, 2, &r2);
+	rt2500usb_bbp_read(rt2x00dev, 14, &r14);
+	rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
+	rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
+
+	/*
+	 * Configure the TX antenna.
+	 */
+	if (antenna_tx == ANTENNA_DIVERSITY) {
+		rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
+		rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
+		rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
+	} else if (antenna_tx == ANTENNA_A) {
+		rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
+		rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
+		rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
+	} else if (antenna_tx == ANTENNA_B) {
+		rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
+		rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
+		rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
+	}
+
+	/*
+	 * Configure the RX antenna.
+	 */
+	if (antenna_rx == ANTENNA_DIVERSITY)
+		rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
+	else if (antenna_rx == ANTENNA_A)
+		rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
+	else if (antenna_rx == ANTENNA_B)
+		rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
+
+	/*
+	 * RT2525E and RT5222 need to flip TX I/Q
+	 */
+	if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF5222)) {
+		rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
+		rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
+		rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
+
+		/*
+		 * RT2525E does not need RX I/Q Flip.
+		 */
+		if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
+			rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
+	} else {
+		rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
+		rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
+	}
+
+	rt2500usb_bbp_write(rt2x00dev, 2, r2);
+	rt2500usb_bbp_write(rt2x00dev, 14, r14);
+	rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
+	rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
+}
+
+static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev,
+	const int short_slot_time, const int beacon_int)
+{
+	u16 reg;
+
+	rt2500usb_register_write(rt2x00dev, MAC_CSR10,
+		short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME);
+
+	rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
+	rt2x00_set_field16(&reg, TXRX_CSR18_INTERVAL, beacon_int * 4);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
+}
+
+static void rt2500usb_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
+{
+	struct ieee80211_conf *conf = &rt2x00dev->hw->conf;
+	u16 reg;
+	u16 value;
+	u16 preamble;
+
+	preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE)
+		? SHORT_PREAMBLE : PREAMBLE;
+
+	reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE;
+
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR11, reg);
+
+	rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
+	value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
+		 SHORT_DIFS :  DIFS) +
+		PLCP + preamble + get_duration(ACK_SIZE, 10);
+	rt2x00_set_field16(&reg, TXRX_CSR1_ACK_TIMEOUT, value);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
+
+	rt2500usb_register_read(rt2x00dev, TXRX_CSR10, &reg);
+	if (preamble == SHORT_PREAMBLE)
+		rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE, 1);
+	else
+		rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE, 0);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
+}
+
+static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev,
+	const int phymode)
+{
+	struct ieee80211_hw_mode *mode;
+	struct ieee80211_rate *rate;
+
+	if (phymode == MODE_IEEE80211A)
+		rt2x00dev->curr_hwmode = HWMODE_A;
+	else if (phymode == MODE_IEEE80211B)
+		rt2x00dev->curr_hwmode = HWMODE_B;
+	else
+		rt2x00dev->curr_hwmode = HWMODE_G;
+
+	mode = &rt2x00dev->hwmodes[rt2x00dev->curr_hwmode];
+	rate = &mode->rates[mode->num_rates - 1];
+
+	rt2500usb_config_rate(rt2x00dev, rate->val2);
+
+	if (phymode == MODE_IEEE80211B) {
+		rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x000b);
+		rt2500usb_register_write(rt2x00dev, MAC_CSR12, 0x0040);
+	} else {
+		rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0005);
+		rt2500usb_register_write(rt2x00dev, MAC_CSR12, 0x016c);
+	}
+}
+
+static void rt2500usb_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr)
+{
+	u16 reg[3];
+
+	memset(&reg, 0, sizeof(reg));
+	memcpy(&reg, addr, ETH_ALEN);
+
+	/*
+	 * The MAC address is passed to us as an array of bytes,
+	 * that array is little endian, so no need for byte ordering.
+	 */
+	rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, &reg, sizeof(reg));
+}
+
+/*
+ * LED functions.
+ */
+static void rt2500usb_enable_led(struct rt2x00_dev *rt2x00dev)
+{
+	u16 reg;
+
+	rt2500usb_register_read(rt2x00dev, MAC_CSR21, &reg);
+	rt2x00_set_field16(&reg, MAC_CSR21_ON_PERIOD, 70);
+	rt2x00_set_field16(&reg, MAC_CSR21_OFF_PERIOD, 30);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR21, reg);
+
+	rt2500usb_register_read(rt2x00dev, MAC_CSR20, &reg);
+
+	if (rt2x00dev->led_mode == LED_MODE_TXRX_ACTIVITY) {
+		rt2x00_set_field16(&reg, MAC_CSR20_LINK, 1);
+		rt2x00_set_field16(&reg, MAC_CSR20_ACTIVITY, 0);
+	} else if (rt2x00dev->led_mode == LED_MODE_ASUS) {
+		rt2x00_set_field16(&reg, MAC_CSR20_LINK, 0);
+		rt2x00_set_field16(&reg, MAC_CSR20_ACTIVITY, 1);
+	} else {
+		rt2x00_set_field16(&reg, MAC_CSR20_LINK, 1);
+		rt2x00_set_field16(&reg, MAC_CSR20_ACTIVITY, 1);
+	}
+
+	rt2500usb_register_write(rt2x00dev, MAC_CSR20, reg);
+}
+
+static void rt2500usb_disable_led(struct rt2x00_dev *rt2x00dev)
+{
+	u16 reg;
+
+	rt2500usb_register_read(rt2x00dev, MAC_CSR20, &reg);
+	rt2x00_set_field16(&reg, MAC_CSR20_LINK, 0);
+	rt2x00_set_field16(&reg, MAC_CSR20_ACTIVITY, 0);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR20, reg);
+}
+
+/*
+ * Link tuning
+ */
+static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev, int rssi)
+{
+	u16 bbp_thresh;
+	u16 cca_alarm;
+	u16 vgc_bound;
+	u16 sens;
+	u16 r24;
+	u16 r25;
+	u16 r61;
+	u16 r17_sens;
+	u8 r17;
+	u8 up_bound;
+	u8 low_bound;
+
+	/*
+	 * Determine the BBP tuning threshold and correctly
+	 * set BBP 24, 25 and 61.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
+	bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
+
+	if ((rssi + bbp_thresh) > 0) {
+		r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
+		r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
+		r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
+	} else {
+		r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
+		r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
+		r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
+	}
+
+	rt2500usb_bbp_write(rt2x00dev, 24, r24);
+	rt2500usb_bbp_write(rt2x00dev, 25, r25);
+	rt2500usb_bbp_write(rt2x00dev, 61, r61);
+
+	/*
+	 * Read current r17 value, as well as the sensitivity values
+	 * for the r17 register.
+	 */
+	rt2500usb_bbp_read(rt2x00dev, 17, &r17);
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
+
+	/*
+	 * A too low RSSI will cause too much false CCA which will
+	 * then corrupt the R17 tuning. To remidy this the tuning should
+	 * be stopped (While making sure the R17 value will not exceed limits)
+	 */
+	if (rssi >= -40) {
+		if (r17 != 0x60)
+			rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
+		return;
+	}
+
+	/*
+	 * Special big-R17 for short distance
+	 */
+	if (rssi >= -58) {
+		sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
+		if (r17 != sens)
+			rt2500usb_bbp_write(rt2x00dev, 17, sens);
+		return;
+	}
+
+	/*
+	 * Special mid-R17 for middle distance
+	 */
+	if (rssi >= -74) {
+		sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
+		if (r17 != sens)
+			rt2500usb_bbp_write(rt2x00dev, 17, sens);
+		return;
+	}
+
+	/*
+	 * Leave short or middle distance condition, restore r17
+	 * to the dynamic tuning range.
+	 */
+	rt2500usb_register_read(rt2x00dev, STA_CSR3, &cca_alarm);
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
+	vgc_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
+
+	low_bound = 0x32;
+	if (rssi >= -77)
+		up_bound = vgc_bound;
+	else
+		up_bound = vgc_bound - (-77 - rssi);
+
+	if (up_bound < low_bound)
+		up_bound = low_bound;
+
+	if (r17 > up_bound) {
+		rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
+		rt2x00dev->link.curr_noise = up_bound;
+	} else if (cca_alarm > 512 && r17 < up_bound) {
+		rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
+		rt2x00dev->link.curr_noise = r17;
+	} else if (cca_alarm < 100 && r17 > low_bound) {
+		rt2500usb_bbp_write(rt2x00dev, 17, --r17);
+		rt2x00dev->link.curr_noise = r17;
+	}
+}
+
+/*
+ * Initialization functions.
+ */
+static void rt2500usb_init_rxring(struct rt2x00_dev *rt2x00dev)
+{
+	struct usb_device *usb_dev =
+		interface_to_usbdev(rt2x00dev_usb(rt2x00dev));
+	unsigned int i;
+
+	for (i = 0; i < rt2x00dev->rx->stats.limit; i++) {
+		usb_fill_bulk_urb(
+			rt2x00dev->rx->entry[i].priv,
+			usb_dev,
+			usb_rcvbulkpipe(usb_dev, 1),
+			rt2x00dev->rx->entry[i].skb->data,
+			rt2x00dev->rx->entry[i].skb->len,
+			rt2500usb_interrupt_rxdone,
+			&rt2x00dev->rx->entry[i]);
+	}
+
+	rt2x00_ring_index_clear(rt2x00dev->rx);
+}
+
+static void rt2500usb_init_txring(struct rt2x00_dev *rt2x00dev,
+	const int queue)
+{
+	struct data_ring *ring = rt2x00_get_ring(rt2x00dev, queue);
+	unsigned int i;
+
+	for (i = 0; i < ring->stats.limit; i++)
+		ring->entry[i].flags = 0;
+
+	rt2x00_ring_index_clear(ring);
+}
+
+static int rt2500usb_init_rings(struct rt2x00_dev *rt2x00dev)
+{
+	rt2500usb_init_rxring(rt2x00dev);
+	rt2500usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA0);
+	rt2500usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA1);
+	rt2500usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_AFTER_BEACON);
+	rt2500usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
+
+	return 0;
+}
+
+static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
+{
+	u16 reg;
+
+	rt2x00usb_vendor_request(rt2x00dev, USB_DEVICE_MODE,
+		USB_VENDOR_REQUEST_OUT, 0x0001, USB_MODE_TEST, NULL, 0,
+		REGISTER_TIMEOUT);
+	rt2x00usb_vendor_request(rt2x00dev, USB_SINGLE_WRITE,
+		USB_VENDOR_REQUEST_OUT, 0x0308, 0xf0, NULL, 0,
+		REGISTER_TIMEOUT);
+
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR2, 0x0001);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
+
+	rt2500usb_register_write(rt2x00dev, MAC_CSR1, 0x0003);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR1, 0x0000);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR5, 0x8c8d);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR6, 0x8b8a);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR7, 0x8687);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR8, 0x0085);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
+
+	if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
+		return -EBUSY;
+
+	rt2500usb_register_write(rt2x00dev, MAC_CSR1, 0x0004);
+
+	reg = 0;
+	rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
+	if (reg >= 0x0003) {
+		rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
+		reg &= ~0x0002;
+	} else {
+		reg = 0x3002;
+	}
+	rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
+
+	rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
+
+	rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
+	rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
+	rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0xff);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
+
+	rt2500usb_register_read(rt2x00dev, MAC_CSR8, &reg);
+	rt2x00_set_field16(&reg, MAC_CSR8_MAX_FRAME_UNIT,
+		rt2x00dev->rx->data_size);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
+
+	rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
+	rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON, 0x5a);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
+
+	rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
+	rt2x00_set_field16(&reg, TXRX_CSR1_AUTO_SEQUENCE, 1);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
+
+	rt2500usb_register_read(rt2x00dev, PHY_CSR4, &reg);
+	rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg | 0x0001);
+
+	return 0;
+}
+
+static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
+{
+	unsigned int i;
+	u16 eeprom;
+	u8 value;
+	u8 reg_id;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2500usb_bbp_read(rt2x00dev, 0, &value);
+		if ((value != 0xff) && (value != 0x00))
+			goto continue_csr_init;
+		NOTICE(rt2x00dev, "Waiting for BBP register.\n");
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
+	return -EACCES;
+
+continue_csr_init:
+	rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
+	rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
+	rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
+	rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
+	rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
+	rt2500usb_bbp_write(rt2x00dev, 17, 0x48);
+	rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
+	rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
+	rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
+	rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
+	rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
+	rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
+	rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
+	rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
+	rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
+	rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
+	rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
+	rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
+	rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
+	rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
+	rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
+	rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
+	rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
+	rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
+	rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
+	rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
+	rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
+	rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
+	rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
+	rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
+	rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
+	rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
+
+	DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
+	for (i = 0; i < EEPROM_BBP_SIZE; i++) {
+		rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
+
+		if (eeprom != 0xffff && eeprom != 0x0000) {
+			reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
+			value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
+			DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
+				reg_id, value);
+			rt2500usb_bbp_write(rt2x00dev, reg_id, value);
+		}
+	}
+	DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
+	value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
+	rt2500usb_bbp_write(rt2x00dev, 24, value);
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
+	value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
+	rt2500usb_bbp_write(rt2x00dev, 25, value);
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
+	value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
+	rt2500usb_bbp_write(rt2x00dev, 61, value);
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
+	value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
+	rt2500usb_bbp_write(rt2x00dev, 17, value);
+
+	return 0;
+}
+
+/*
+ * Device state switch handlers.
+ */
+static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	u16 reg;
+
+	rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
+	rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX,
+		state == STATE_RADIO_RX_OFF);
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
+}
+
+static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	/*
+	 * Initialize all registers.
+	 */
+	if (rt2500usb_init_rings(rt2x00dev) ||
+	    rt2500usb_init_registers(rt2x00dev) ||
+	    rt2500usb_init_bbp(rt2x00dev)) {
+		ERROR(rt2x00dev, "Register initialization failed.\n");
+		return -EIO;
+	}
+
+	rt2x00usb_enable_radio(rt2x00dev);
+
+	/*
+	 * Enable LED
+	 */
+	rt2500usb_enable_led(rt2x00dev);
+
+	return 0;
+}
+
+static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	/*
+	 * Disable LED
+	 */
+	rt2500usb_disable_led(rt2x00dev);
+
+	rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
+
+	/*
+	 * Disable synchronisation.
+	 */
+	rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
+
+	rt2x00usb_disable_radio(rt2x00dev);
+}
+
+static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	u16 reg;
+	u16 reg2;
+	unsigned int i;
+	char put_to_sleep;
+	char bbp_state;
+	char rf_state;
+
+	put_to_sleep = (state != STATE_AWAKE);
+
+	reg = 0;
+	rt2x00_set_field16(&reg, MAC_CSR17_BBP_DESIRE_STATE, state);
+	rt2x00_set_field16(&reg, MAC_CSR17_RF_DESIRE_STATE, state);
+	rt2x00_set_field16(&reg, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
+	rt2x00_set_field16(&reg, MAC_CSR17_SET_STATE, 1);
+	rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
+
+	/*
+	 * Device is not guaranteed to be in the requested state yet.
+	 * We must wait until the register indicates that the
+	 * device has entered the correct state.
+	 */
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2500usb_register_read(rt2x00dev, MAC_CSR17, &reg2);
+		bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
+		rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
+		if (bbp_state == state && rf_state == state)
+			return 0;
+		rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
+		msleep(30);
+	}
+
+	NOTICE(rt2x00dev, "Device failed to enter state %d, "
+		"current device state: bbp %d and rf %d.\n",
+		state, bbp_state, rf_state);
+
+	return -EBUSY;
+}
+
+static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	int retval = 0;
+
+	switch (state) {
+		case STATE_RADIO_ON:
+			retval = rt2500usb_enable_radio(rt2x00dev);
+		break;
+		case STATE_RADIO_OFF:
+			rt2500usb_disable_radio(rt2x00dev);
+		break;
+		case STATE_RADIO_RX_ON:
+		case STATE_RADIO_RX_OFF:
+			rt2500usb_toggle_rx(rt2x00dev, state);
+		break;
+		case STATE_DEEP_SLEEP:
+		case STATE_SLEEP:
+		case STATE_STANDBY:
+		case STATE_AWAKE:
+			retval = rt2500usb_set_state(rt2x00dev, state);
+		break;
+		default:
+			retval = -ENOTSUPP;
+		break;
+	}
+
+	return retval;
+}
+
+/*
+ * TX descriptor initialization
+ */
+static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
+	struct data_entry *entry, struct data_desc *txd,
+	struct data_entry_desc *desc, struct ieee80211_hdr *ieee80211hdr,
+	unsigned int length, struct ieee80211_tx_control *control)
+{
+	u32 word;
+
+	/*
+	 * Start writing the descriptor words.
+	 */
+	rt2x00_desc_read(txd, 1, &word);
+	rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
+	rt2x00_set_field32(&word, TXD_W1_AIFS, entry->ring->tx_params.aifs);
+	rt2x00_set_field32(&word, TXD_W1_CWMIN, entry->ring->tx_params.cw_min);
+	rt2x00_set_field32(&word, TXD_W1_CWMAX, entry->ring->tx_params.cw_max);
+	rt2x00_desc_write(txd, 1, word);
+
+	rt2x00_desc_read(txd, 2, &word);
+	rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, desc->signal);
+	rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, desc->service);
+	rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, desc->length_low);
+	rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, desc->length_high);
+	rt2x00_desc_write(txd, 2, word);
+
+	rt2x00_desc_read(txd, 0, &word);
+	rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, control->retry_limit);
+	rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
+		test_bit(ENTRY_TXD_MORE_FRAG, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_ACK,
+		test_bit(ENTRY_TXD_REQ_ACK, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
+		test_bit(ENTRY_TXD_REQ_TIMESTAMP, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_OFDM,
+		test_bit(ENTRY_TXD_OFDM_RATE, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
+		test_bit(ENTRY_TXD_NEW_SEQ, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs);
+	rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, length);
+	rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
+	rt2x00_desc_write(txd, 0, word);
+}
+
+/*
+ * TX data initialization
+ */
+static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev, int queue)
+{
+	u16 reg;
+
+	if (queue != IEEE80211_TX_QUEUE_BEACON)
+		return;
+
+	rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
+	if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
+		rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
+		/*
+		 * Beacon generation will fail initially.
+		 * To prevent this we need to register the TXRX_CSR19
+		 * register several times.
+		 */
+		rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
+		rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
+		rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
+		rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
+		rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
+	}
+}
+
+/*
+ * Interrupt functions.
+ */
+static void rt2500usb_interrupt_rxdone(struct urb *urb)
+{
+	struct data_entry *entry = (struct data_entry*)urb->context;
+	struct data_ring *ring = entry->ring;
+	struct rt2x00_dev *rt2x00dev = ring->rt2x00dev;
+	struct data_desc *rxd = (struct data_desc*)
+		(entry->skb->data + urb->actual_length - ring->desc_size);
+	u32 word0;
+	u32 word1;
+	int signal;
+	int rssi;
+	int ofdm;
+	u16 size;
+
+	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
+	    !test_and_clear_bit(ENTRY_OWNER_NIC, &entry->flags))
+		return;
+
+	/*
+	 * Check if the received data is simply too small
+	 * to be actually valid, or if the urb is signaling
+	 * a problem.
+	 */
+	if (urb->actual_length < entry->ring->desc_size || urb->status)
+		goto skip_entry;
+
+	rt2x00_desc_read(rxd, 0, &word0);
+	rt2x00_desc_read(rxd, 1, &word1);
+
+	/*
+	 * TODO: Don't we need to keep statistics
+	 * updated about events like CRC and physical errors?
+	 */
+	if (rt2x00_get_field32(word0, RXD_W0_CRC) ||
+	    rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
+		goto skip_entry;
+
+	/*
+	 * Obtain the status about this packet.
+	 */
+	size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT) - FCS_LEN;
+	signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
+	rssi = rt2x00_get_field32(word1, RXD_W1_RSSI);
+	ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
+
+	/*
+	 * Trim the skb_buffer to only contain the valid
+	 * frame data (so ignore the device's descriptor).
+	 */
+	skb_trim(entry->skb, size);
+
+	/*
+	 * Send the packet to upper layer, and update urb.
+	 */
+	rt2x00lib_rxdone(entry, NULL, ring->data_size + ring->desc_size,
+		signal, rssi, ofdm);
+	urb->transfer_buffer = entry->skb->data;
+	urb->transfer_buffer_length = entry->skb->len;
+
+skip_entry:
+	if (test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags)) {
+		__set_bit(ENTRY_OWNER_NIC, &entry->flags);
+		usb_submit_urb(urb, GFP_ATOMIC);
+	}
+
+	rt2x00_ring_index_inc(ring);
+}
+
+/*
+ * Device initialization functions.
+ */
+static int rt2500usb_alloc_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	u16 word;
+
+	/*
+	 * Allocate the eeprom memory, check the eeprom width
+	 * and copy the entire eeprom into this allocated memory.
+	 */
+	rt2x00dev->eeprom = kzalloc(EEPROM_SIZE, GFP_KERNEL);
+	if (!rt2x00dev->eeprom)
+		return -ENOMEM;
+
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_EEPROM_READ, USB_VENDOR_REQUEST_IN,
+		EEPROM_BASE, 0x00, rt2x00dev->eeprom, EEPROM_SIZE,
+		REGISTER_TIMEOUT * (EEPROM_SIZE / sizeof(u16)));
+
+	/*
+	 * Start validation of the data that has been read.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
+		EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
+		rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
+		rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
+		EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
+			MAX_RX_SSI);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
+		EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
+		EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
+		EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
+		rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
+		EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
+		rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
+		EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
+		rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
+		EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
+		rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
+		EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
+	}
+
+	return 0;
+}
+
+static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	u16 reg;
+	u16 value;
+	u16 eeprom;
+
+	/*
+	 * Read EEPROM word for configuration.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
+
+	/*
+	 * Identify RF chipset.
+	 */
+	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
+	rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
+	rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
+
+	if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
+		ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
+		return -ENODEV;
+	}
+
+	/*
+	 * Identify default antenna configuration.
+	 */
+	rt2x00dev->hw->conf.antenna_sel_tx = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_TX_DEFAULT);
+	rt2x00dev->hw->conf.antenna_sel_rx = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_RX_DEFAULT);
+
+	/*
+	 * Store led mode, for correct led behaviour.
+	 */
+	rt2x00dev->led_mode = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_LED_MODE);
+
+	/*
+	 * Check if the BBP tuning should be disabled.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
+	if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
+		__set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
+
+	/*
+	 * Read the RSSI <-> dBm offset information.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
+	rt2x00dev->hw->max_rssi =
+		rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
+
+	return 0;
+}
+
+static const struct {
+	unsigned int chip;
+	u32 val[3];
+} rf_vals[] = {
+	{ RF2522,	{ 0x00002050, 0x00000101, 0x00000000 } },
+	{ RF2523,	{ 0x00022010, 0x000e0111, 0x00000a1b } },
+	{ RF2524,	{ 0x00032020, 0x00000101, 0x00000a1b } },
+	{ RF2525,	{ 0x00022020, 0x00060111, 0x00000a1b } },
+	{ RF2525E,	{ 0x00022010, 0x00060111, 0x00000000 } },
+	{ RF5222,	{ 0x00000000, 0x00000101, 0x00000000 } }
+};
+
+/*
+ * RF value list for RF2522
+ * Supports: 2.4 GHz
+ */
+static const u32 rf_vals_bg_2522[] = {
+	0x000c1fda, 0x000c1fee, 0x000c2002, 0x000c2016, 0x000c202a,
+	0x000c203e, 0x000c2052, 0x000c2066, 0x000c207a, 0x000c208e,
+	0x000c20a2, 0x000c20b6, 0x000c20ca, 0x000c20fa
+};
+
+/*
+ * RF value list for RF2523, RF2524 & RF2525
+ * Supports: 2.4 GHz
+ */
+static const u32 rf_vals_bg_252x[] = {
+	0x00000c9e, 0x00000ca2, 0x00000ca6, 0x00000caa, 0x00000cae,
+	0x00000cb2, 0x00000cb6, 0x00000cba, 0x00000cbe, 0x00000d02,
+	0x00000d06, 0x00000d0a, 0x00000d0e, 0x00000d1a
+};
+
+/*
+ * RF value list for RF2525E
+ * Supports: 2.4 GHz
+ */
+static const u32 rf_vals_bg_2525e[] = {
+	0x0000089a, 0x0000089e, 0x0000089e, 0x000008a2, 0x000008a2,
+	0x000008a6, 0x000008a6, 0x000008aa, 0x000008aa, 0x000008ae,
+	0x000008ae, 0x000008b2, 0x000008b2, 0x000008b6
+};
+
+/*
+ * RF value list for RF5222
+ * Supports: 2.4 GHz & 5.2 GHz
+ */
+static const u32 rf_vals_abg_5222[] = {
+	0x00001136, 0x0000113a, 0x0000113e, 0x00001182, 0x00001186,
+	0x0000118a, 0x0000118e, 0x00001192, 0x00001196, 0x0000119a,
+	0x0000119e, 0x000011a2, 0x000011a6, 0x000011ae, 0x0001889a,
+	0x0001889a, 0x0001889e, 0x000188a2, 0x000188a6, 0x000188aa,
+	0x000188ae, 0x000188b2, 0x00008802, 0x00008806, 0x0000880a,
+	0x0000880e, 0x00008812, 0x00008816, 0x0000881a, 0x0000881e,
+	0x00008822, 0x00008826, 0x0000882a, 0x000090a6, 0x000090ae,
+	0x000090b6, 0x000090be
+};
+
+static void rt2500usb_init_hw_mode(struct rt2x00_dev *rt2x00dev)
+{
+	struct hw_mode_spec *spec = &rt2x00dev->spec;
+	u8 *txpower;
+	unsigned int i;
+
+	/*
+	 * Initialize all hw fields.
+	 */
+	rt2x00dev->hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
+		IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
+		IEEE80211_HW_WEP_INCLUDE_IV |
+		IEEE80211_HW_DATA_NULLFUNC_ACK |
+		IEEE80211_HW_NO_TKIP_WMM_HWACCEL |
+		IEEE80211_HW_MONITOR_DURING_OPER;
+	rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
+	rt2x00dev->hw->max_rssi = MAX_RX_SSI;
+	rt2x00dev->hw->max_noise = MAX_RX_NOISE;
+	rt2x00dev->hw->queues = 2;
+
+	/*
+	 * This device supports ATIM
+	 */
+	__set_bit(DEVICE_SUPPORT_ATIM, &rt2x00dev->flags);
+
+	/*
+	 * Set device specific, but channel independent RF values.
+	 */
+	for (i = 0; i < ARRAY_SIZE(rf_vals); i++) {
+		if (rt2x00_rf(&rt2x00dev->chip, rf_vals[i].chip)) {
+			rt2x00dev->rf1 = rf_vals[i].val[0];
+			rt2x00dev->rf3 = rf_vals[i].val[1];
+			rt2x00dev->rf4 = rf_vals[i].val[2];
+		}
+	}
+
+	/*
+	 * Convert tx_power array in eeprom.
+	 */
+	txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
+	for (i = 0; i < 14; i++)
+		txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
+
+	/*
+	 * Initialize hw_mode information.
+	 */
+	spec->mac_addr = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
+	spec->num_modes = 2;
+	spec->num_rates = 12;
+	spec->num_channels = 14;
+	spec->tx_power_a = NULL;
+	spec->tx_power_bg = txpower;
+	spec->tx_power_default = DEFAULT_TXPOWER;
+	spec->chan_val_a = NULL;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF2522))
+		spec->chan_val_bg = rf_vals_bg_2522;
+	else if (rt2x00_rf(&rt2x00dev->chip, RF2523) ||
+		 rt2x00_rf(&rt2x00dev->chip, RF2524) ||
+		 rt2x00_rf(&rt2x00dev->chip, RF2525))
+		spec->chan_val_bg = rf_vals_bg_252x;
+	else if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
+		spec->chan_val_bg = rf_vals_bg_2525e;
+	else if (rt2x00_rf(&rt2x00dev->chip, RF5222))
+		spec->chan_val_bg = rf_vals_abg_5222;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
+		spec->num_modes = 3;
+		spec->num_channels += 23;
+		spec->chan_val_a = &rf_vals_abg_5222[14];
+	}
+}
+
+static int rt2500usb_init_hw(struct rt2x00_dev *rt2x00dev)
+{
+	int retval;
+
+	/*
+	 * Allocate eeprom data.
+	 */
+	retval = rt2500usb_alloc_eeprom(rt2x00dev);
+	if (retval)
+		return retval;
+
+	retval = rt2500usb_init_eeprom(rt2x00dev);
+	if (retval)
+		return retval;
+
+	/*
+	 * Initialize hw specifications.
+	 */
+	rt2500usb_init_hw_mode(rt2x00dev);
+
+	return 0;
+}
+
+/*
+ * IEEE80211 stack callback functions.
+ */
+static int rt2500usb_get_stats(struct ieee80211_hw *hw,
+	struct ieee80211_low_level_stats *stats)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u16 reg;
+
+	/*
+	 * Update FCS error count from register.
+	 * The dot11ACKFailureCount, dot11RTSFailureCount and
+	 * dot11RTSSuccessCount are updated in interrupt time.
+	 */
+	rt2500usb_register_read(rt2x00dev, STA_CSR0, &reg);
+	rt2x00dev->low_level_stats.dot11FCSErrorCount +=
+		rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
+
+	memcpy(stats, &rt2x00dev->low_level_stats, sizeof(*stats));
+
+	return 0;
+}
+
+static const struct ieee80211_ops rt2500usb_mac80211_ops = {
+	.tx			= rt2x00lib_tx,
+	.reset			= rt2x00lib_reset,
+	.open			= rt2x00lib_open,
+	.stop			= rt2x00lib_stop,
+	.add_interface		= rt2x00lib_add_interface,
+	.remove_interface	= rt2x00lib_remove_interface,
+	.config			= rt2x00lib_config,
+	.config_interface	= rt2x00lib_config_interface,
+	.set_multicast_list	= rt2x00lib_set_multicast_list,
+	.get_stats		= rt2500usb_get_stats,
+	.conf_tx		= rt2x00lib_conf_tx,
+	.get_tx_stats		= rt2x00lib_get_tx_stats,
+	.beacon_update		= rt2x00usb_beacon_update,
+};
+
+static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
+	.init_hw		= rt2500usb_init_hw,
+	.initialize		= rt2x00usb_initialize,
+	.uninitialize		= rt2x00usb_uninitialize,
+	.set_device_state	= rt2500usb_set_device_state,
+	.link_tuner		= rt2500usb_link_tuner,
+	.write_tx_desc		= rt2500usb_write_tx_desc,
+	.write_tx_data		= rt2x00usb_write_tx_data,
+	.kick_tx_queue		= rt2500usb_kick_tx_queue,
+	.config_type		= rt2500usb_config_type,
+	.config_phymode		= rt2500usb_config_phymode,
+	.config_channel		= rt2500usb_config_channel,
+	.config_mac_addr	= rt2500usb_config_mac_addr,
+	.config_bssid		= rt2500usb_config_bssid,
+	.config_promisc		= rt2500usb_config_promisc,
+	.config_txpower		= rt2500usb_config_txpower,
+	.config_antenna		= rt2500usb_config_antenna,
+	.config_duration	= rt2500usb_config_duration,
+};
+
+static const struct rt2x00_ops rt2500usb_ops = {
+	.name	= DRV_NAME,
+	.rxd_size = RXD_DESC_SIZE,
+	.txd_size = TXD_DESC_SIZE,
+	.lib	= &rt2500usb_rt2x00_ops,
+	.hw	= &rt2500usb_mac80211_ops,
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+	.debugfs = &rt2500usb_rt2x00debug,
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+};
+
+/*
+ * rt2500usb module information.
+ */
+static struct usb_device_id rt2500usb_device_table[] = {
+	/* ASUS */
+	{ USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* Belkin */
+	{ USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* Cisco Systems */
+	{ USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* Conceptronic */
+	{ USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* D-LINK */
+	{ USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* Gigabyte */
+	{ USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* Hercules */
+	{ USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* Melco */
+	{ USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* MSI */
+	{ USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* Ralink */
+	{ USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* Siemens */
+	{ USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* SMC */
+	{ USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* Spairon */
+	{ USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* Trust */
+	{ USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
+	/* Zinwell */
+	{ USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
+	{ 0, }
+};
+
+MODULE_AUTHOR(DRV_PROJECT);
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
+MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
+MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
+MODULE_LICENSE("GPL");
+
+static struct usb_driver rt2500usb_driver = {
+	.name		= DRV_NAME,
+	.id_table	= rt2500usb_device_table,
+	.probe		= rt2x00usb_probe,
+	.disconnect	= rt2x00usb_disconnect,
+#ifdef CONFIG_PM
+	.suspend	= rt2x00usb_suspend,
+	.resume		= rt2x00usb_resume,
+#endif /* CONFIG_PM */
+};
+
+static int __init rt2500usb_init(void)
+{
+	printk(KERN_INFO "Loading module: %s - %s by %s.\n",
+		DRV_NAME, DRV_VERSION, DRV_PROJECT);
+	return usb_register(&rt2500usb_driver);
+}
+
+static void __exit rt2500usb_exit(void)
+{
+	printk(KERN_INFO "Unloading module: %s.\n", DRV_NAME);
+	usb_deregister(&rt2500usb_driver);
+}
+
+module_init(rt2500usb_init);
+module_exit(rt2500usb_exit);
diff --git a/package/rt2x00/src/rt2500usb.h b/package/rt2x00/src/rt2500usb.h
new file mode 100644
index 0000000..e756d6e
--- /dev/null
+++ b/package/rt2x00/src/rt2500usb.h
@@ -0,0 +1,737 @@
+/*
+	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: rt2500usb
+	Abstract: Data structures and registers for the rt2500usb module.
+	Supported chipsets: RT2570.
+ */
+
+#ifndef RT2500USB_H
+#define RT2500USB_H
+
+/*
+ * RF chip defines.
+ */
+#define RF2522				0x0000
+#define RF2523				0x0001
+#define RF2524				0x0002
+#define RF2525				0x0003
+#define RF2525E				0x0005
+#define RF5222				0x0010
+
+/*
+ * Max RSSI value, required for RSSI <-> dBm conversion.
+ */
+#define MAX_RX_SSI			120
+#define MAX_RX_NOISE			-110
+
+/*
+ * Register layout information.
+ */
+#define CSR_REG_BASE			0x0400
+#define CSR_REG_SIZE			0x0100
+#define EEPROM_BASE			0x0000
+#define EEPROM_SIZE			0x006a
+#define BBP_SIZE			0x0060
+
+/*
+ * Control/Status Registers(CSR).
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * MAC_CSR0: ASIC revision number.
+ */
+#define MAC_CSR0			0x0400
+
+/*
+ * MAC_CSR1: System control.
+ */
+#define MAC_CSR1			0x0402
+
+/*
+ * MAC_CSR2: STA MAC register 0.
+ */
+#define MAC_CSR2			0x0404
+#define MAC_CSR2_BYTE0			FIELD16(0x00ff)
+#define MAC_CSR2_BYTE1			FIELD16(0xff00)
+
+/*
+ * MAC_CSR3: STA MAC register 1.
+ */
+#define MAC_CSR3			0x0406
+#define MAC_CSR3_BYTE2			FIELD16(0x00ff)
+#define MAC_CSR3_BYTE3			FIELD16(0xff00)
+
+/*
+ * MAC_CSR4: STA MAC register 2.
+ */
+#define MAC_CSR4			0X0408
+#define MAC_CSR4_BYTE4			FIELD16(0x00ff)
+#define MAC_CSR4_BYTE5			FIELD16(0xff00)
+
+/*
+ * MAC_CSR5: BSSID register 0.
+ */
+#define MAC_CSR5			0x040a
+#define MAC_CSR5_BYTE0			FIELD16(0x00ff)
+#define MAC_CSR5_BYTE1			FIELD16(0xff00)
+
+/*
+ * MAC_CSR6: BSSID register 1.
+ */
+#define MAC_CSR6			0x040c
+#define MAC_CSR6_BYTE2			FIELD16(0x00ff)
+#define MAC_CSR6_BYTE3			FIELD16(0xff00)
+
+/*
+ * MAC_CSR7: BSSID register 2.
+ */
+#define MAC_CSR7			0x040e
+#define MAC_CSR7_BYTE4			FIELD16(0x00ff)
+#define MAC_CSR7_BYTE5			FIELD16(0xff00)
+
+/*
+ * MAC_CSR8: Max frame length.
+ */
+#define MAC_CSR8			0x0410
+#define MAC_CSR8_MAX_FRAME_UNIT		FIELD16(0x0fff)
+
+/*
+ * Misc MAC_CSR registers.
+ * MAC_CSR9: Timer control.
+ * MAC_CSR10: Slot time.
+ * MAC_CSR11: IFS.
+ * MAC_CSR12: EIFS.
+ * MAC_CSR13: Power mode0.
+ * MAC_CSR14: Power mode1.
+ * MAC_CSR15: Power saving transition0
+ * MAC_CSR16: Power saving transition1
+ */
+#define MAC_CSR9			0x0412
+#define MAC_CSR10			0x0414
+#define MAC_CSR11			0x0416
+#define MAC_CSR12			0x0418
+#define MAC_CSR13			0x041a
+#define MAC_CSR14			0x041c
+#define MAC_CSR15			0x041e
+#define MAC_CSR16			0x0420
+
+/*
+ * MAC_CSR17: Manual power control / status register.
+ * Allowed state: 0 deep_sleep, 1: sleep, 2: standby, 3: awake.
+ * SET_STATE: Set state. Write 1 to trigger, self cleared.
+ * BBP_DESIRE_STATE: BBP desired state.
+ * RF_DESIRE_STATE: RF desired state.
+ * BBP_CURRENT_STATE: BBP current state.
+ * RF_CURRENT_STATE: RF current state.
+ * PUT_TO_SLEEP: Put to sleep. Write 1 to trigger, self cleared.
+ */
+#define MAC_CSR17			0x0422
+#define MAC_CSR17_SET_STATE		FIELD16(0x0001)
+#define MAC_CSR17_BBP_DESIRE_STATE	FIELD16(0x0006)
+#define MAC_CSR17_RF_DESIRE_STATE	FIELD16(0x0018)
+#define MAC_CSR17_BBP_CURR_STATE	FIELD16(0x0060)
+#define MAC_CSR17_RF_CURR_STATE		FIELD16(0x0180)
+#define MAC_CSR17_PUT_TO_SLEEP		FIELD16(0x0200)
+
+/*
+ * MAC_CSR18: Wakeup timer register.
+ * DELAY_AFTER_BEACON: Delay after Tbcn expired in units of 1/16 TU.
+ * BEACONS_BEFORE_WAKEUP: Number of beacon before wakeup.
+ * AUTO_WAKE: Enable auto wakeup / sleep mechanism.
+ */
+#define MAC_CSR18			0x0424
+#define MAC_CSR18_DELAY_AFTER_BEACON	FIELD16(0x00ff)
+#define MAC_CSR18_BEACONS_BEFORE_WAKEUP	FIELD16(0x7f00)
+#define MAC_CSR18_AUTO_WAKE		FIELD16(0x8000)
+
+/*
+ * MAC_CSR19: GPIO control register.
+ */
+#define MAC_CSR19			0x0426
+
+/*
+ * MAC_CSR20: LED control register.
+ * ACTIVITY: 0: idle, 1: active.
+ * LINK: 0: linkoff, 1: linkup.
+ * ACTIVITY_POLARITY: 0: active low, 1: active high.
+ */
+#define MAC_CSR20			0x0428
+#define MAC_CSR20_ACTIVITY		FIELD16(0x0001)
+#define MAC_CSR20_LINK			FIELD16(0x0002)
+#define MAC_CSR20_ACTIVITY_POLARITY	FIELD16(0x0004)
+
+/*
+ * MAC_CSR21: LED control register.
+ * ON_PERIOD: On period, default 70ms.
+ * OFF_PERIOD: Off period, default 30ms.
+ */
+#define MAC_CSR21			0x042a
+#define MAC_CSR21_ON_PERIOD		FIELD16(0x00ff)
+#define MAC_CSR21_OFF_PERIOD		FIELD16(0xff00)
+
+/*
+ * Collision window control register.
+ */
+#define MAC_CSR22			0x042c
+
+/*
+ * Transmit related CSRs.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * TXRX_CSR0: Security control register.
+ */
+#define TXRX_CSR0			0x0440
+#define TXRX_CSR0_ALGORITHM		FIELD16(0x0007)
+#define TXRX_CSR0_IV_OFFSET		FIELD16(0x01f8)
+#define TXRX_CSR0_KEY_ID		FIELD16(0x1e00)
+
+/*
+ * TXRX_CSR1: TX configuration.
+ * ACK_TIMEOUT: ACK Timeout in unit of 1-us.
+ * TSF_OFFSET: TSF offset in MAC header.
+ * AUTO_SEQUENCE: Let ASIC control frame sequence number.
+ */
+#define TXRX_CSR1			0x0442
+#define TXRX_CSR1_ACK_TIMEOUT		FIELD16(0x00ff)
+#define TXRX_CSR1_TSF_OFFSET		FIELD16(0x7f00)
+#define TXRX_CSR1_AUTO_SEQUENCE		FIELD16(0x8000)
+
+/*
+ * TXRX_CSR2: RX control.
+ * DISABLE_RX: Disable rx engine.
+ * DROP_CRC: Drop crc error.
+ * DROP_PHYSICAL: Drop physical error.
+ * DROP_CONTROL: Drop control frame.
+ * DROP_NOT_TO_ME: Drop not to me unicast frame.
+ * DROP_TODS: Drop frame tods bit is true.
+ * DROP_VERSION_ERROR: Drop version error frame.
+ * DROP_MCAST: Drop multicast frames.
+ * DROP_BCAST: Drop broadcast frames.
+ */
+#define TXRX_CSR2			0x0444
+#define	TXRX_CSR2_DISABLE_RX		FIELD16(0x0001)
+#define TXRX_CSR2_DROP_CRC		FIELD16(0x0002)
+#define TXRX_CSR2_DROP_PHYSICAL		FIELD16(0x0004)
+#define TXRX_CSR2_DROP_CONTROL		FIELD16(0x0008)
+#define TXRX_CSR2_DROP_NOT_TO_ME	FIELD16(0x0010)
+#define TXRX_CSR2_DROP_TODS		FIELD16(0x0020)
+#define TXRX_CSR2_DROP_VERSION_ERROR	FIELD16(0x0040)
+#define TXRX_CSR2_DROP_MCAST		FIELD16(0x0200)
+#define TXRX_CSR2_DROP_BCAST		FIELD16(0x0400)
+
+/*
+ * RX BBP ID registers
+ * TXRX_CSR3: CCK RX BBP ID.
+ * TXRX_CSR4: OFDM RX BBP ID.
+ */
+#define TXRX_CSR3			0x0446
+#define TXRX_CSR4			0x0448
+
+/*
+ * TX BBP ID registers
+ * TXRX_CSR5: CCK TX BBP ID0.
+ * TXRX_CSR5: CCK TX BBP ID1.
+ * TXRX_CSR5: OFDM TX BBP ID0.
+ * TXRX_CSR5: OFDM TX BBP ID1.
+ */
+#define TXRX_CSR5			0x044a
+#define TXRX_CSR6			0x044c
+#define TXRX_CSR7			0x044e
+#define TXRX_CSR8			0x0450
+
+/*
+ * TXRX_CSR9: TX ACK time-out.
+ */
+#define TXRX_CSR9			0x0452
+
+/*
+ * TXRX_CSR10: Auto responder control.
+ */
+#define TXRX_CSR10			0x0454
+#define TXRX_CSR10_AUTORESPOND_PREAMBLE FIELD16(0x0004)
+
+/*
+ * TXRX_CSR11: Auto responder basic rate.
+ */
+#define TXRX_CSR11			0x0456
+
+/*
+ * ACK/CTS time registers.
+ */
+#define TXRX_CSR12			0x0458
+#define TXRX_CSR13			0x045a
+#define TXRX_CSR14			0x045c
+#define TXRX_CSR15			0x045e
+#define TXRX_CSR16			0x0460
+#define TXRX_CSR17			0x0462
+
+/*
+ * TXRX_CSR18: Synchronization control register.
+ */
+#define TXRX_CSR18			0x0464
+#define TXRX_CSR18_OFFSET		FIELD16(0x000f)
+#define TXRX_CSR18_INTERVAL		FIELD16(0xfff0)
+
+/*
+ * TXRX_CSR19: Synchronization control register.
+ * TSF_COUNT: Enable TSF auto counting.
+ * TSF_SYNC: Tsf sync, 0: disable, 1: infra, 2: ad-hoc/master mode.
+ * TBCN: Enable Tbcn with reload value.
+ * BEACON_GEN: Enable beacon generator.
+ */
+#define TXRX_CSR19			0x0466
+#define TXRX_CSR19_TSF_COUNT		FIELD16(0x0001)
+#define TXRX_CSR19_TSF_SYNC		FIELD16(0x0006)
+#define TXRX_CSR19_TBCN			FIELD16(0x0008)
+#define TXRX_CSR19_BEACON_GEN		FIELD16(0x0010)
+
+/*
+ * TXRX_CSR20: Tx BEACON offset time control register.
+ * OFFSET: In units of usec.
+ * BCN_EXPECT_WINDOW: Default: 2^CWmin
+ */
+#define TXRX_CSR20			0x0468
+#define TXRX_CSR20_OFFSET		FIELD16(0x1fff)
+#define TXRX_CSR20_BCN_EXPECT_WINDOW	FIELD16(0xe000)
+
+/*
+ * TXRX_CSR21
+ */
+#define TXRX_CSR21			0x046a
+
+/*
+ * Encryption related CSRs.
+ *
+ */
+
+/*
+ * SEC_CSR0-SEC_CSR7: Shared key 0, word 0-7
+ */
+#define SEC_CSR0			0x0480
+#define SEC_CSR1			0x0482
+#define SEC_CSR2			0x0484
+#define SEC_CSR3			0x0486
+#define SEC_CSR4			0x0488
+#define SEC_CSR5			0x048a
+#define SEC_CSR6			0x048c
+#define SEC_CSR7			0x048e
+
+/*
+ * SEC_CSR8-SEC_CSR15: Shared key 1, word 0-7
+ */
+#define SEC_CSR8			0x0490
+#define SEC_CSR9			0x0492
+#define SEC_CSR10			0x0494
+#define SEC_CSR11			0x0496
+#define SEC_CSR12			0x0498
+#define SEC_CSR13			0x049a
+#define SEC_CSR14			0x049c
+#define SEC_CSR15			0x049e
+
+/*
+ * SEC_CSR16-SEC_CSR23: Shared key 2, word 0-7
+ */
+#define SEC_CSR16			0x04a0
+#define SEC_CSR17			0x04a2
+#define SEC_CSR18			0X04A4
+#define SEC_CSR19			0x04a6
+#define SEC_CSR20			0x04a8
+#define SEC_CSR21			0x04aa
+#define SEC_CSR22			0x04ac
+#define SEC_CSR23			0x04ae
+
+/*
+ * SEC_CSR24-SEC_CSR31: Shared key 3, word 0-7
+ */
+#define SEC_CSR24			0x04b0
+#define SEC_CSR25			0x04b2
+#define SEC_CSR26			0x04b4
+#define SEC_CSR27			0x04b6
+#define SEC_CSR28			0x04b8
+#define SEC_CSR29			0x04ba
+#define SEC_CSR30			0x04bc
+#define SEC_CSR31			0x04be
+
+/*
+ * PHY control registers.
+ */
+
+/*
+ * PHY_CSR0: RF switching timing control.
+ */
+#define PHY_CSR0			0x04c0
+
+/*
+ * PHY_CSR1: TX PA configuration.
+ */
+#define PHY_CSR1			0x04c2
+
+/*
+ * MAC configuration registers.
+ * PHY_CSR2: TX MAC configuration.
+ * PHY_CSR3: RX MAC configuration.
+ */
+#define PHY_CSR2			0x04c4
+#define PHY_CSR3			0x04c6
+
+/*
+ * PHY_CSR4: Interface configuration.
+ */
+#define PHY_CSR4			0x04c8
+
+/*
+ * BBP pre-TX registers.
+ * PHY_CSR5: BBP pre-TX CCK.
+ */
+#define PHY_CSR5			0x04ca
+#define PHY_CSR5_CCK			FIELD16(0x0003)
+#define PHY_CSR5_CCK_FLIP		FIELD16(0x0004)
+
+/*
+ * BBP pre-TX registers.
+ * PHY_CSR6: BBP pre-TX OFDM.
+ */
+#define PHY_CSR6			0x04cc
+#define PHY_CSR6_OFDM			FIELD16(0x0003)
+#define PHY_CSR6_OFDM_FLIP		FIELD16(0x0004)
+
+/*
+ * PHY_CSR7: BBP access register 0.
+ * BBP_DATA: BBP data.
+ * BBP_REG_ID: BBP register ID.
+ * BBP_READ_CONTROL: 0: write, 1: read.
+ */
+#define PHY_CSR7			0x04ce
+#define PHY_CSR7_DATA			FIELD16(0x00ff)
+#define PHY_CSR7_REG_ID			FIELD16(0x7f00)
+#define PHY_CSR7_READ_CONTROL		FIELD16(0x8000)
+
+/*
+ * PHY_CSR8: BBP access register 1.
+ * BBP_BUSY: ASIC is busy execute BBP programming.
+ */
+#define PHY_CSR8			0x04d0
+#define PHY_CSR8_BUSY			FIELD16(0x0001)
+
+/*
+ * PHY_CSR9: RF access register.
+ * RF_VALUE: Register value + id to program into rf/if.
+ */
+#define PHY_CSR9			0x04d2
+#define PHY_CSR9_RF_VALUE		FIELD16(0xffff)
+
+/*
+ * PHY_CSR10: RF access register.
+ * RF_VALUE: Register value + id to program into rf/if.
+ * RF_NUMBER_OF_BITS: Number of bits used in value (i:20, rfmd:22).
+ * RF_IF_SELECT: Chip to program: 0: rf, 1: if.
+ * RF_PLL_LD: Rf pll_ld status.
+ * RF_BUSY: 1: asic is busy execute rf programming.
+ */
+#define PHY_CSR10			0x04d4
+#define PHY_CSR10_RF_VALUE		FIELD16(0x00ff)
+#define PHY_CSR10_RF_NUMBER_OF_BITS	FIELD16(0x1f00)
+#define PHY_CSR10_RF_IF_SELECT		FIELD16(0x2000)
+#define PHY_CSR10_RF_PLL_LD		FIELD16(0x4000)
+#define PHY_CSR10_RF_BUSY		FIELD16(0x8000)
+
+/*
+ * STA_CSR0: FCS error count.
+ * FCS_ERROR: FCS error count, cleared when read.
+ */
+#define STA_CSR0			0x04e0
+#define STA_CSR0_FCS_ERROR		FIELD16(0xffff)
+
+/*
+ * Statistic Register.
+ * STA_CSR1: PLCP error.
+ * STA_CSR2: LONG error.
+ * STA_CSR3: CCA false alarm.
+ * STA_CSR4: RX FIFO overflow.
+ * STA_CSR5: Beacon sent counter.
+ */
+#define STA_CSR1			0x04e2
+#define STA_CSR2			0x04e4
+#define STA_CSR3			0x04e6
+#define STA_CSR4			0x04e8
+#define STA_CSR5			0x04ea
+#define STA_CSR6			0x04ec
+#define STA_CSR7			0x04ee
+#define STA_CSR8			0x04f0
+#define STA_CSR9			0x04f2
+#define STA_CSR10			0x04f4
+
+/*
+ * RF registers.
+ */
+#define RF1_TUNER			FIELD32(0x00020000)
+#define RF3_TUNER			FIELD32(0x00000100)
+#define RF3_TXPOWER			FIELD32(0x00003e00)
+
+/*
+ * EEPROM contents.
+ */
+
+/*
+ * HW MAC address.
+ */
+#define EEPROM_MAC_ADDR_0		0x0002
+#define EEPROM_MAC_ADDR_BYTE0		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE1		FIELD16(0xff00)
+#define EEPROM_MAC_ADDR1		0x0003
+#define EEPROM_MAC_ADDR_BYTE2		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE3		FIELD16(0xff00)
+#define EEPROM_MAC_ADDR_2		0x0004
+#define EEPROM_MAC_ADDR_BYTE4		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE5		FIELD16(0xff00)
+
+/*
+ * EEPROM antenna.
+ * ANTENNA_NUM: Number of antenna's.
+ * TX_DEFAULT: Default antenna 0: diversity, 1: A, 2: B.
+ * RX_DEFAULT: Default antenna 0: diversity, 1: A, 2: B.
+ * LED_MODE: 0: default, 1: TX/RX activity, 2: Single (ignore link), 3: rsvd.
+ * DYN_TXAGC: Dynamic TX AGC control.
+ * HARDWARE_RADIO: 1: Hardware controlled radio. Read GPIO0.
+ * RF_TYPE: Rf_type of this adapter.
+ */
+#define EEPROM_ANTENNA			0x000b
+#define EEPROM_ANTENNA_NUM		FIELD16(0x0003)
+#define EEPROM_ANTENNA_TX_DEFAULT	FIELD16(0x000c)
+#define EEPROM_ANTENNA_RX_DEFAULT	FIELD16(0x0030)
+#define EEPROM_ANTENNA_LED_MODE		FIELD16(0x01c0)
+#define EEPROM_ANTENNA_DYN_TXAGC	FIELD16(0x0200)
+#define EEPROM_ANTENNA_HARDWARE_RADIO	FIELD16(0x0400)
+#define EEPROM_ANTENNA_RF_TYPE		FIELD16(0xf800)
+
+/*
+ * EEPROM NIC config.
+ * CARDBUS_ACCEL: 0: enable, 1: disable.
+ * DYN_BBP_TUNE: 0: enable, 1: disable.
+ * CCK_TX_POWER: CCK TX power compensation.
+ */
+#define EEPROM_NIC			0x000c
+#define EEPROM_NIC_CARDBUS_ACCEL	FIELD16(0x0001)
+#define EEPROM_NIC_DYN_BBP_TUNE		FIELD16(0x0002)
+#define EEPROM_NIC_CCK_TX_POWER		FIELD16(0x000c)
+
+/*
+ * EEPROM geography.
+ * GEO: Default geography setting for device.
+ */
+#define EEPROM_GEOGRAPHY		0x000d
+#define EEPROM_GEOGRAPHY_GEO		FIELD16(0x0f00)
+
+/*
+ * EEPROM BBP.
+ */
+#define EEPROM_BBP_START		0x000e
+#define EEPROM_BBP_SIZE			16
+#define EEPROM_BBP_VALUE		FIELD16(0x00ff)
+#define EEPROM_BBP_REG_ID		FIELD16(0xff00)
+
+/*
+ * EEPROM TXPOWER
+ */
+#define EEPROM_TXPOWER_START		0x001e
+#define EEPROM_TXPOWER_SIZE		7
+#define EEPROM_TXPOWER_1		FIELD16(0x00ff)
+#define EEPROM_TXPOWER_2		FIELD16(0xff00)
+
+/*
+ * EEPROM Tuning threshold
+ */
+#define EEPROM_BBPTUNE			0x0030
+#define EEPROM_BBPTUNE_THRESHOLD	FIELD16(0x00ff)
+
+/*
+ * EEPROM BBP R24 Tuning.
+ */
+#define EEPROM_BBPTUNE_R24		0x0031
+#define EEPROM_BBPTUNE_R24_LOW		FIELD16(0x00ff)
+#define EEPROM_BBPTUNE_R24_HIGH		FIELD16(0xff00)
+
+/*
+ * EEPROM BBP R25 Tuning.
+ */
+#define EEPROM_BBPTUNE_R25		0x0032
+#define EEPROM_BBPTUNE_R25_LOW		FIELD16(0x00ff)
+#define EEPROM_BBPTUNE_R25_HIGH		FIELD16(0xff00)
+
+/*
+ * EEPROM BBP R24 Tuning.
+ */
+#define EEPROM_BBPTUNE_R61		0x0033
+#define EEPROM_BBPTUNE_R61_LOW		FIELD16(0x00ff)
+#define EEPROM_BBPTUNE_R61_HIGH		FIELD16(0xff00)
+
+/*
+ * EEPROM BBP VGC Tuning.
+ */
+#define EEPROM_BBPTUNE_VGC		0x0034
+#define EEPROM_BBPTUNE_VGCUPPER		FIELD16(0x00ff)
+
+/*
+ * EEPROM BBP R17 Tuning.
+ */
+#define EEPROM_BBPTUNE_R17		0x0035
+#define EEPROM_BBPTUNE_R17_LOW		FIELD16(0x00ff)
+#define EEPROM_BBPTUNE_R17_HIGH		FIELD16(0xff00)
+
+/*
+ * RSSI <-> dBm offset calibration
+ */
+#define EEPROM_CALIBRATE_OFFSET		0x0036
+#define EEPROM_CALIBRATE_OFFSET_RSSI	FIELD16(0x00ff)
+
+/*
+ * BBP content.
+ * The wordsize of the BBP is 8 bits.
+ */
+
+/*
+ * BBP_R2: TX antenna control
+ */
+#define BBP_R2_TX_ANTENNA		FIELD8(0x03)
+#define BBP_R2_TX_IQ_FLIP		FIELD8(0x04)
+
+/*
+ * BBP_R14: RX antenna control
+ */
+#define BBP_R14_RX_ANTENNA		FIELD8(0x03)
+#define BBP_R14_RX_IQ_FLIP		FIELD8(0x04)
+
+/*
+ * DMA descriptor defines.
+ */
+#define TXD_DESC_SIZE			( 5 * sizeof(struct data_desc) )
+#define RXD_DESC_SIZE			( 4 * sizeof(struct data_desc) )
+
+/*
+ * TX descriptor format for TX, PRIO, ATIM and Beacon Ring.
+ */
+
+/*
+ * Word0
+ */
+#define TXD_W0_PACKET_ID		FIELD32(0x0000000f)
+#define TXD_W0_RETRY_LIMIT		FIELD32(0x000000f0)
+#define TXD_W0_MORE_FRAG		FIELD32(0x00000100)
+#define TXD_W0_ACK			FIELD32(0x00000200)
+#define TXD_W0_TIMESTAMP		FIELD32(0x00000400)
+#define TXD_W0_OFDM			FIELD32(0x00000800)
+#define TXD_W0_NEW_SEQ			FIELD32(0x00001000)
+#define TXD_W0_IFS			FIELD32(0x00006000)
+#define TXD_W0_DATABYTE_COUNT		FIELD32(0x0fff0000)
+#define TXD_W0_CIPHER			FIELD32(0x20000000)
+#define TXD_W0_KEY_ID			FIELD32(0xc0000000)
+
+/*
+ * Word1
+ */
+#define TXD_W1_IV_OFFSET		FIELD32(0x0000003f)
+#define TXD_W1_AIFS			FIELD32(0x000000c0)
+#define TXD_W1_CWMIN			FIELD32(0x00000f00)
+#define TXD_W1_CWMAX			FIELD32(0x0000f000)
+
+/*
+ * Word2: PLCP information
+ */
+#define TXD_W2_PLCP_SIGNAL		FIELD32(0x000000ff)
+#define TXD_W2_PLCP_SERVICE		FIELD32(0x0000ff00)
+#define TXD_W2_PLCP_LENGTH_LOW		FIELD32(0x00ff0000)
+#define TXD_W2_PLCP_LENGTH_HIGH		FIELD32(0xff000000)
+
+/*
+ * Word3
+ */
+#define TXD_W3_IV			FIELD32(0xffffffff)
+
+/*
+ * Word4
+ */
+#define TXD_W4_EIV			FIELD32(0xffffffff)
+
+/*
+ * RX descriptor format for RX Ring.
+ */
+
+/*
+ * Word0
+ */
+#define RXD_W0_UNICAST_TO_ME		FIELD32(0x00000002)
+#define RXD_W0_MULTICAST		FIELD32(0x00000004)
+#define RXD_W0_BROADCAST		FIELD32(0x00000008)
+#define RXD_W0_MY_BSS			FIELD32(0x00000010)
+#define RXD_W0_CRC			FIELD32(0x00000020)
+#define RXD_W0_OFDM			FIELD32(0x00000040)
+#define RXD_W0_PHYSICAL_ERROR		FIELD32(0x00000080)
+#define RXD_W0_CIPHER			FIELD32(0x00000100)
+#define RXD_W0_CI_ERROR			FIELD32(0x00000200)
+#define RXD_W0_DATABYTE_COUNT		FIELD32(0x0fff0000)
+
+/*
+ * Word1
+ */
+#define RXD_W1_RSSI			FIELD32(0x000000ff)
+#define RXD_W1_SIGNAL			FIELD32(0x0000ff00)
+
+/*
+ * Word2
+ */
+#define RXD_W2_IV			FIELD32(0xffffffff)
+
+/*
+ * Word3
+ */
+#define RXD_W3_EIV			FIELD32(0xffffffff)
+
+/*
+ * Macro's for converting txpower from EEPROM to dscape value
+ * and from dscape value to register value.
+ */
+#define MIN_TXPOWER	0
+#define MAX_TXPOWER	31
+#define DEFAULT_TXPOWER	24
+
+#define TXPOWER_FROM_DEV(__txpower)		\
+({						\
+	((__txpower) > MAX_TXPOWER) ?		\
+		DEFAULT_TXPOWER : (__txpower);	\
+})
+
+#define TXPOWER_TO_DEV(__txpower)			\
+({							\
+	((__txpower) <= MIN_TXPOWER) ? MIN_TXPOWER :	\
+	(((__txpower) >= MAX_TXPOWER) ? MAX_TXPOWER :	\
+	(__txpower));					\
+})
+
+/*
+ * Interrupt functions.
+ */
+static void rt2500usb_interrupt_rxdone(struct urb *urb);
+
+#endif /* RT2500USB_H */
diff --git a/package/rt2x00/src/rt2x00.h b/package/rt2x00/src/rt2x00.h
new file mode 100644
index 0000000..dbea6ac
--- /dev/null
+++ b/package/rt2x00/src/rt2x00.h
@@ -0,0 +1,1087 @@
+/*
+	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: rt2x00
+	Abstract: rt2x00 global information.
+	Supported chipsets: RT2460, RT2560, RT2570,
+	rt2561, rt2561s, rt2661, rt2571W & rt2671.
+ */
+
+#ifndef RT2X00_H
+#define RT2X00_H
+
+#include <linux/bitops.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+
+#include <net/mac80211.h>
+
+#include "rt2x00lib.h"
+#include "rt2x00debug.h"
+
+/*
+ * Module information.
+ */
+#ifndef DRV_NAME
+#define DRV_NAME	"rt2x00"
+#endif /* DRV_NAME */
+#define DRV_VERSION	"2.0.1"
+#define DRV_PROJECT	"http://rt2x00.serialmonkey.com"
+
+/*
+ * Debug definitions.
+ * Debug output has to be enabled during compile time.
+ */
+#define DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, __args...)	\
+	printk(__kernlvl "%s -> %s: %s - " __msg,			\
+		wiphy_name(rt2x00dev->hw->wiphy),			\
+		__FUNCTION__, __lvl, ##__args)
+
+#define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...)		\
+	printk(__kernlvl "%s -> %s: %s - " __msg,			\
+		DRV_NAME, __FUNCTION__, __lvl, 	##__args)
+
+#ifdef CONFIG_RT2X00_DEBUG
+#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
+	DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, ##__args);
+#else /* CONFIG_RT2X00_DEBUG */
+#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
+	do { } while (0)
+#endif /* CONFIG_RT2X00_DEBUG */
+
+/*
+ * Various debug levels.
+ * The debug levels PANIC and ERROR both indicate serious problems,
+ * for this reason they should never be ignored.
+ * The special ERROR_PROBE message is for messages that are generated
+ * when the rt2x00_dev is not yet initialized.
+ */
+#define PANIC(__dev, __msg, __args...) \
+	DEBUG_PRINTK_MSG(__dev, KERN_CRIT, "Panic", __msg, ##__args)
+#define ERROR(__dev, __msg, __args...)	\
+	DEBUG_PRINTK_MSG(__dev, KERN_ERR, "Error", __msg, ##__args)
+#define ERROR_PROBE(__msg, __args...) \
+	DEBUG_PRINTK_PROBE(KERN_ERR, "Error", __msg, ##__args)
+#define WARNING(__dev, __msg, __args...) \
+	DEBUG_PRINTK(__dev, KERN_WARNING, "Warning", __msg, ##__args)
+#define NOTICE(__dev, __msg, __args...) \
+	DEBUG_PRINTK(__dev, KERN_NOTICE, "Notice", __msg, ##__args)
+#define INFO(__dev, __msg, __args...) \
+	DEBUG_PRINTK(__dev, KERN_INFO, "Info", __msg, ##__args)
+#define DEBUG(__dev, __msg, __args...) \
+	DEBUG_PRINTK(__dev, KERN_DEBUG, "Debug", __msg, ##__args)
+#define EEPROM(__dev, __msg, __args...) \
+	DEBUG_PRINTK(__dev, KERN_DEBUG, "EEPROM recovery", __msg, ##__args)
+
+/*
+ * Ring sizes.
+ * Ralink PCI devices demand the Frame size to be a multiple of 128 bytes.
+ * DATA_FRAME_SIZE is used for TX, RX, ATIM and PRIO rings.
+ * MGMT_FRAME_SIZE is used for the BEACON ring.
+ */
+#define DATA_FRAME_SIZE	2432
+#define MGMT_FRAME_SIZE	256
+
+/*
+ * Number of entries in a packet ring.
+ */
+#define RX_ENTRIES	12
+#define TX_ENTRIES	12
+#define ATIM_ENTRIES	1
+#define BEACON_ENTRIES	1
+
+/*
+ * Standard timing and size defines.
+ */
+#define ACK_SIZE		14
+#define IEEE80211_HEADER	24
+#define PLCP			48
+#define BEACON			100
+#define PREAMBLE		144
+#define SHORT_PREAMBLE		72
+#define SLOT_TIME		20
+#define SHORT_SLOT_TIME		9
+#define SIFS			10
+#define PIFS			( SIFS + SLOT_TIME )
+#define SHORT_PIFS		( SIFS + SHORT_SLOT_TIME )
+#define DIFS			( PIFS + SLOT_TIME )
+#define SHORT_DIFS		( SHORT_PIFS + SHORT_SLOT_TIME )
+#define EIFS			( SIFS + (8 * (IEEE80211_HEADER + ACK_SIZE)) )
+
+/*
+ * IEEE802.11 header defines
+ */
+#define is_rts_frame(__fc) \
+	( !!((((__fc) &  IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) && \
+	     (((__fc) &  IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_RTS)) )
+#define is_cts_frame(__fc) \
+	( !!((((__fc) &  IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) && \
+	     (((__fc) &  IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_CTS)) )
+#define is_probe_resp(__fc) \
+	( !!((((__fc) & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) && \
+	     (((__fc) & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP)) )
+
+/*
+ * Interval defines
+ */
+#define LINK_TUNE_INTERVAL	( 1 * HZ )
+#define RFKILL_POLL_INTERVAL	( HZ / 4 )
+
+/*
+ * TX result flags.
+ */
+enum TX_STATUS {
+	TX_SUCCESS = 0,
+	TX_SUCCESS_RETRY = 1,
+	TX_FAIL_RETRY = 2,
+	TX_FAIL_INVALID = 3,
+	TX_FAIL_OTHER = 4,
+};
+
+/*
+ * Antenna values
+ */
+enum antenna {
+	ANTENNA_DIVERSITY = 0,
+	ANTENNA_A = 1,
+	ANTENNA_B = 2,
+};
+
+/*
+ * Led mode values.
+ */
+enum led_mode {
+	LED_MODE_DEFAULT = 0,
+	LED_MODE_TXRX_ACTIVITY = 1,
+	LED_MODE_SIGNAL_STRENGTH = 2,
+	LED_MODE_ASUS = 3,
+	LED_MODE_ALPHA = 4,
+};
+
+/*
+ * Device states
+ */
+enum dev_state {
+	STATE_DEEP_SLEEP = 0,
+	STATE_SLEEP = 1,
+	STATE_STANDBY = 2,
+	STATE_AWAKE = 3,
+
+/*
+ * Additional device states, these values are
+ * not strict since they are not directly passed
+ * into the device.
+ */
+	STATE_RADIO_ON,
+	STATE_RADIO_OFF,
+	STATE_RADIO_RX_ON,
+	STATE_RADIO_RX_OFF,
+};
+
+/*
+ * IFS backoff values
+ */
+enum ifs {
+	IFS_BACKOFF = 0,
+	IFS_SIFS = 1,
+	IFS_NEW_BACKOFF = 2,
+	IFS_NONE = 3,
+};
+
+/*
+ * Cipher types for hardware encryption
+ */
+enum cipher {
+	CIPHER_NONE = 0,
+	CIPHER_WEP64 = 1,
+	CIPHER_WEP128 = 2,
+	CIPHER_TKIP = 3,
+	CIPHER_AES = 4,
+/*
+ * The following fields were added by rt61pci and rt73usb.
+ */
+	CIPHER_CKIP64 = 5,
+	CIPHER_CKIP128 = 6,
+	CIPHER_TKIP_NO_MIC = 7,
+};
+
+/*
+ * Register handlers.
+ * We store the position of a register field inside a field structure,
+ * This will simplify the process of setting and reading a certain field
+ * inside the register while making sure the process remains byte order safe.
+ */
+struct rt2x00_field8 {
+	u8 bit_offset;
+	u8 bit_mask;
+};
+
+struct rt2x00_field16 {
+	u16 bit_offset;
+	u16 bit_mask;
+};
+
+struct rt2x00_field32 {
+	u32 bit_offset;
+	u32 bit_mask;
+};
+
+/*
+ * Power of two check from Linus Torvalds,
+ * this will check if the mask that has been
+ * given contains and contiguous set of bits.
+ */
+#define is_power_of_two(x)	( !((x) & ((x)-1)) )
+#define low_bit_mask(x)		( ((x)-1) & ~(x) )
+#define is_valid_mask(x)	is_power_of_two(1 + (x) + low_bit_mask(x))
+
+#define FIELD8(__mask)				\
+({						\
+	BUILD_BUG_ON(!(__mask) ||		\
+		     !is_valid_mask(__mask) ||	\
+		     (__mask) != (u8)(__mask));	\
+	(struct rt2x00_field8) {		\
+		__ffs(__mask), (__mask)		\
+	};					\
+})
+
+#define FIELD16(__mask)				\
+({						\
+	BUILD_BUG_ON(!(__mask) ||		\
+		     !is_valid_mask(__mask) ||	\
+		     (__mask) != (u16)(__mask));\
+	(struct rt2x00_field16) {		\
+		__ffs(__mask), (__mask)		\
+	};					\
+})
+
+#define FIELD32(__mask)				\
+({						\
+	BUILD_BUG_ON(!(__mask) ||		\
+		     !is_valid_mask(__mask) ||	\
+		     (__mask) != (u32)(__mask));\
+	(struct rt2x00_field32) {		\
+		__ffs(__mask), (__mask)		\
+	};					\
+})
+
+static inline void rt2x00_set_field32(u32 *reg,
+	const struct rt2x00_field32 field, const u32 value)
+{
+	*reg &= ~(field.bit_mask);
+	*reg |= (value << field.bit_offset) & field.bit_mask;
+}
+
+static inline u32 rt2x00_get_field32(const u32 reg,
+	const struct rt2x00_field32 field)
+{
+	return (reg & field.bit_mask) >> field.bit_offset;
+}
+
+static inline void rt2x00_set_field16(u16 *reg,
+	const struct rt2x00_field16 field, const u16 value)
+{
+	*reg &= ~(field.bit_mask);
+	*reg |= (value << field.bit_offset) & field.bit_mask;
+}
+
+static inline u16 rt2x00_get_field16(const u16 reg,
+	const struct rt2x00_field16 field)
+{
+	return (reg & field.bit_mask) >> field.bit_offset;
+}
+
+static inline void rt2x00_set_field8(u8 *reg,
+	const struct rt2x00_field8 field, const u8 value)
+{
+	*reg &= ~(field.bit_mask);
+	*reg |= (value << field.bit_offset) & field.bit_mask;
+}
+
+static inline u8 rt2x00_get_field8(const u8 reg,
+	const struct rt2x00_field8 field)
+{
+	return (reg & field.bit_mask) >> field.bit_offset;
+}
+
+/*
+ * Chipset identification
+ * The chipset on the device is composed of a RT and RF chip.
+ * The chipset combination is important for determining device capabilities.
+ */
+struct rt2x00_chip {
+	u16 rt;
+#define RT2460		0x0101
+#define RT2560		0x0201
+#define RT2570		0x1201
+#define RT2561		0x0301
+#define RT2561s		0x0302
+#define RT2661		0x0401
+#define RT2571		0x1300
+
+	u16 rf;
+	u32 rev;
+};
+
+/*
+ * data_desc
+ * Each data entry also contains a descriptor which is used by the
+ * device to determine what should be done with the packet and
+ * what the current status is.
+ * This structure is greatly simplified, but the descriptors
+ * are basically a list of little endian 32 bit values.
+ * Make the array by default 1 word big, this will allow us
+ * to use sizeof() correctly.
+ */
+struct data_desc {
+	__le32 word[1];
+};
+
+/*
+ * data_entry_desc
+ * Summary of information that should be written into the
+ * descriptor for sending a TX frame.
+ */
+struct data_entry_desc {
+	/*
+	 * PLCP values.
+	 */
+	u16 length_high;
+	u16 length_low;
+	u16 signal;
+	u16 service;
+
+	int queue;
+	int ifs;
+};
+
+/*
+ * data_entry
+ * The data ring is a list of data entries.
+ * Each entry holds a reference to the descriptor
+ * and the data buffer. For TX rings the reference to the
+ * sk_buff of the packet being transmitted is also stored here.
+ */
+struct data_entry {
+	/*
+	 * Status flags
+	 */
+	unsigned long flags;
+#define ENTRY_OWNER_NIC		1
+#define ENTRY_TXDONE		2
+#define ENTRY_TXD_RTS_FRAME	3
+#define ENTRY_TXD_OFDM_RATE	4
+#define ENTRY_TXD_MORE_FRAG	5
+#define ENTRY_TXD_REQ_TIMESTAMP	6
+#define ENTRY_TXD_REQ_ACK	7
+#define ENTRY_TXD_NEW_SEQ	8
+
+	/*
+	 * Ring we belong to.
+	 */
+	struct data_ring *ring;
+
+	/*
+	 * sk_buff for the packet which is being transmitted
+	 * in this entry (Only used with TX related rings).
+	 */
+	struct sk_buff *skb;
+
+	/*
+	 * Store a ieee80211_tx_status structure in each
+	 * ring entry, this will optimize the txdone
+	 * handler.
+	 */
+	struct ieee80211_tx_status tx_status;
+
+	/*
+	 * private pointer specific to driver.
+	 */
+	void *priv;
+
+	/*
+	 * Data address for this entry.
+	 */
+	void *data_addr;
+	dma_addr_t data_dma;
+};
+
+/*
+ * data_ring
+ * Data rings are used by the device to send and receive packets.
+ * The data_addr is the base address of the data memory.
+ * To determine at which point in the ring we are,
+ * have to use the rt2x00_ring_index_*() functions.
+ */
+struct data_ring {
+	/*
+	 * Pointer to main rt2x00dev structure where this
+	 * ring belongs to.
+	 */
+	struct rt2x00_dev *rt2x00dev;
+
+	/*
+	 * Base address for the device specific data entries.
+	 */
+	struct data_entry *entry;
+
+	/*
+	 * TX queue statistic info.
+	 */
+	struct ieee80211_tx_queue_stats_data stats;
+
+	/*
+	 * TX Queue parameters.
+	 */
+	struct ieee80211_tx_queue_params tx_params;
+
+	/*
+	 * Base address for data ring.
+	 */
+	dma_addr_t data_dma;
+	void *data_addr;
+
+	/*
+	 * Index variables.
+	 */
+	u16 index;
+	u16 index_done;
+
+	/*
+	 * Size of packet and descriptor in bytes.
+	 */
+	u16 data_size;
+	u16 desc_size;
+};
+
+/*
+ * Handlers to determine the address of the current device specific
+ * data entry, where either index or index_done points to.
+ */
+static inline struct data_entry* rt2x00_get_data_entry(
+	struct data_ring *ring)
+{
+	return &ring->entry[ring->index];
+}
+
+static inline struct data_entry* rt2x00_get_data_entry_done(
+	struct data_ring *ring)
+{
+	return &ring->entry[ring->index_done];
+}
+
+/*
+ * Total ring memory
+ */
+static inline int rt2x00_get_ring_size(struct data_ring *ring)
+{
+	return ring->stats.limit * (ring->desc_size + ring->data_size);
+}
+
+/*
+ * Ring index manipulation functions.
+ */
+static inline void rt2x00_ring_index_inc(struct data_ring *ring)
+{
+	ring->index++;
+	if (ring->index >= ring->stats.limit)
+		ring->index = 0;
+	ring->stats.len++;
+}
+
+static inline void rt2x00_ring_index_done_inc(struct data_ring *ring)
+{
+	ring->index_done++;
+	if (ring->index_done >= ring->stats.limit)
+		ring->index_done = 0;
+	ring->stats.len--;
+	ring->stats.count++;
+}
+
+static inline void rt2x00_ring_index_clear(struct data_ring *ring)
+{
+	ring->index = 0;
+	ring->index_done = 0;
+	ring->stats.len = 0;
+	ring->stats.count = 0;
+}
+
+static inline int rt2x00_ring_empty(struct data_ring *ring)
+{
+	return ring->stats.len == 0;
+}
+
+static inline int rt2x00_ring_full(struct data_ring *ring)
+{
+	return ring->stats.len == ring->stats.limit;
+}
+
+static inline int rt2x00_ring_free(struct data_ring *ring)
+{
+	if (ring->index_done >= ring->index)
+		return ring->index_done - ring->index;
+	return ring->stats.len - (ring->index - ring->index_done);
+}
+
+/*
+ * TX/RX Descriptor access functions.
+ */
+static inline void rt2x00_desc_read(struct data_desc *desc,
+	const u8 word, u32 *value)
+{
+	*value = le32_to_cpu(desc->word[word]);
+}
+
+static inline void rt2x00_desc_write(struct data_desc *desc,
+	const u8 word, const u32 value)
+{
+	desc->word[word] = cpu_to_le32(value);
+}
+
+/*
+ * To optimize the quality of the link we need to store
+ * the quality of received frames and periodically
+ * optimize the link.
+ */
+struct link {
+	/*
+	 * Link tuner counter
+	 * The number of times the link has been tuned
+	 * since the radio has been switched on.
+	 */
+	u32 count;
+
+	/*
+	 * RSSI statistics.
+	 */
+	u32 count_rssi;
+	u32 total_rssi;
+
+	/*
+	 * Misc statistics.
+	 */
+	u32 curr_noise;
+	u32 false_cca;
+
+	/*
+	 * Work structure for scheduling periodic link tuning.
+	 */
+	struct delayed_work work;
+};
+
+/*
+ * Interface structure
+ * Configuration details about the current interface.
+ */
+struct interface {
+	/*
+	 * Interface identification. The value is assigned
+	 * to us by the 80211 stack, and is used to request
+	 * new beacons.
+	 */
+	int id;
+
+	/*
+	 * Current working type (IEEE80211_IF_TYPE_*).
+	 * This excludes the type IEEE80211_IF_TYPE_MNTR
+	 * since that is counted seperately in the monitor_count
+	 * field.
+	 */
+	int type;
+
+	/*
+	 * BBSID of the AP to associate with.
+	 */
+	u8 bssid[ETH_ALEN];
+
+	/*
+	 * Store the promisc mode for the current interface.
+	 * monitor mode always forces promisc mode to be enabled,
+	 * so we need to store the promisc mode seperately.
+	 */
+	short promisc;
+
+	/*
+	 * Monitor mode count, the number of interfaces
+	 * in monitor mode that that have been added.
+	 */
+	short monitor_count;
+};
+
+static inline int is_interface_present(struct interface *intf)
+{
+	return !!intf->id;
+}
+
+static inline int is_monitor_present(struct interface *intf)
+{
+	return !!intf->monitor_count;
+}
+
+/*
+ * rt2x00lib callback functions.
+ */
+struct rt2x00lib_ops {
+	/*
+	 * Interrupt handlers.
+	 */
+	irq_handler_t irq_handler;
+
+	/*
+	 * Device init handlers.
+	 */
+	int (*init_hw)(struct rt2x00_dev *rt2x00dev);
+	char* (*get_fw_name)(struct rt2x00_dev *rt2x00dev);
+	int (*load_firmware)(struct rt2x00_dev *rt2x00dev, void *data,
+		const size_t len);
+
+	/*
+	 * Device initialization/deinitialization handlers.
+	 */
+	int (*initialize)(struct rt2x00_dev *rt2x00dev);
+	void (*uninitialize)(struct rt2x00_dev *rt2x00dev);
+
+	/*
+	 * Radio control handlers.
+	 */
+	int (*set_device_state)(struct rt2x00_dev *rt2x00dev,
+		enum dev_state state);
+	int (*rfkill_poll)(struct rt2x00_dev *rt2x00dev);
+	void (*link_tuner)(struct rt2x00_dev *rt2x00dev, int rssi);
+
+	/*
+	 * TX control handlers
+	 */
+	void (*write_tx_desc)(struct rt2x00_dev *rt2x00dev,
+		struct data_entry *entry, struct data_desc *txd,
+		struct data_entry_desc *desc,
+		struct ieee80211_hdr *ieee80211hdr, unsigned int length,
+		struct ieee80211_tx_control *control);
+	int (*write_tx_data)(struct rt2x00_dev *rt2x00dev,
+		struct data_ring *ring, struct sk_buff *skb,
+		struct ieee80211_tx_control *control);
+	void (*kick_tx_queue)(struct rt2x00_dev *rt2x00dev, int queue);
+
+	/*
+	 * Configuration handlers.
+	 */
+	void (*config_type)(struct rt2x00_dev *rt2x00dev, const int type);
+	void (*config_phymode)(struct rt2x00_dev *rt2x00dev, const int phy);
+	void (*config_channel)(struct rt2x00_dev *rt2x00dev, const int value,
+	const int channel, const int txpower);
+	void (*config_mac_addr)(struct rt2x00_dev *rt2x00dev, u8 *mac);
+	void (*config_bssid)(struct rt2x00_dev *rt2x00dev, u8 *bssid);
+	void (*config_promisc)(struct rt2x00_dev *rt2x00dev, const int promisc);
+	void (*config_txpower)(struct rt2x00_dev *rt2x00dev, const int txpower);
+	void (*config_antenna)(struct rt2x00_dev *rt2x00dev,
+		const int antenna_tx, const int antenna_rx);
+	void (*config_duration)(struct rt2x00_dev *rt2x00dev,
+		const int short_slot_time, const int beacon_int);
+};
+
+/*
+ * rt2x00 driver callback operation structure.
+ */
+struct rt2x00_ops {
+	const char *name;
+	const unsigned int rxd_size;
+	const unsigned int txd_size;
+	const struct rt2x00lib_ops *lib;
+	const struct ieee80211_ops *hw;
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+	const struct rt2x00debug *debugfs;
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+};
+
+/*
+ * rt2x00 device structure.
+ */
+struct rt2x00_dev {
+	/*
+	 * Device structure.
+	 * The structure stored in here depends on the
+	 * system bus (PCI or USB).
+	 * When accessing this variable, the rt2x00dev_{pci,usb}
+	 * macro's should be used for correct typecasting.
+	 */
+	void *dev;
+	struct device *device;
+#define rt2x00dev_pci(__dev)	( (struct pci_dev*)(__dev)->dev )
+#define rt2x00dev_usb(__dev)	( (struct usb_interface*)(__dev)->dev )
+
+	/*
+	 * Callback functions.
+	 */
+	const struct rt2x00_ops *ops;
+
+	/*
+	 * IEEE80211 control structure.
+	 */
+	struct ieee80211_hw *hw;
+	struct ieee80211_hw_mode *hwmodes;
+	unsigned int curr_hwmode;
+#define HWMODE_B	0
+#define HWMODE_G	1
+#define HWMODE_A	2
+
+	/*
+	 * rfkill structure for RF state switching support.
+	 * This will only be compiled in when required.
+	 */
+#ifdef CONFIG_RT2X00_LIB_RFKILL
+	struct rfkill *rfkill;
+	struct delayed_work rfkill_work;
+#endif /* CONFIG_RT2X00_LIB_RFKILL */
+
+	/*
+	 * Device flags.
+	 * In these flags the current status and some
+	 * of the device capabilities are stored.
+	 */
+	unsigned long flags;
+#define DEVICE_ENABLED_RADIO		1
+#define DEVICE_ENABLED_RADIO_HW		2
+#define DEVICE_INITIALIZED		3
+#define DEVICE_INITIALIZED_HW		4
+#define FIRMWARE_REQUIRED		5
+#define FIRMWARE_LOADED			6
+#define FIRMWARE_FAILED			7
+#define INTERFACE_ENABLED		8
+#define INTERFACE_ENABLED_MONITOR	9
+#define INTERFACE_ENABLED_PROMISC	10
+#define DEVICE_SUPPORT_ATIM		11
+#define DEVICE_SUPPORT_HW_BUTTON	12
+#define CONFIG_FRAME_TYPE		13
+#define CONFIG_RF_SEQUENCE		14
+#define CONFIG_EXTERNAL_LNA		15
+#define CONFIG_EXTERNAL_LNA_A		16
+#define CONFIG_EXTERNAL_LNA_BG		17
+#define CONFIG_DOUBLE_ANTENNA		18
+#define CONFIG_DISABLE_LINK_TUNING	19
+
+	/*
+	 * Chipset identification.
+	 */
+	struct rt2x00_chip chip;
+
+	/*
+	 * hw capability specifications.
+	 */
+	struct hw_mode_spec spec;
+
+	/*
+	 * Base address of device registers (PCI devices only).
+	 */
+	void __iomem *csr_addr;
+
+	/*
+	 * If enabled, the debugfs interface structures
+	 * required for deregistration of debugfs.
+	 */
+	const struct rt2x00debug_intf *debugfs_intf;
+
+	/*
+	 * Queue for deferred work.
+	 */
+	struct workqueue_struct *workqueue;
+
+	/*
+	 * Interface configuration.
+	 */
+	struct interface interface;
+
+	/*
+	 * Link quality
+	 */
+	struct link link;
+
+	/*
+	 * EEPROM data.
+	 */
+	__le16 *eeprom;
+
+	/*
+	 * Active RF register values.
+	 * These are stored here for easier working
+	 * with the rf registers.
+	 */
+	u32 rf1;
+	u32 rf2;
+	u32 rf3;
+	u32 rf4;
+
+	/*
+	 * Current TX power value.
+	 */
+	u16 tx_power;
+
+	/*
+	 * LED register (for rt61pci & rt73usb).
+	 */
+	u16 led_reg;
+
+	/*
+	 * Led mode (LED_MODE_*)
+	 */
+	u8 led_mode;
+
+	/*
+	 * EEPROM bus width (PCI devices only).
+	 */
+	u8 eeprom_width;
+
+	/*
+	 * Frequency offset (for rt61pci & rt73usb).
+	 */
+	u8 freq_offset;
+
+	/*
+	 * Low level statistics which will have
+	 * to be kept up to date while device is running.
+	 */
+	struct ieee80211_low_level_stats low_level_stats;
+
+	/*
+	 * RX configuration information.
+	 */
+	struct ieee80211_rx_status rx_status;
+
+	/*
+	 * Data ring arrays for RX, TX and Beacon.
+	 * The Beacon array also contains the Atim ring
+	 * if that is supported by the device.
+	 */
+	struct data_ring *rx;
+	struct data_ring *tx;
+	struct data_ring *bcn;
+};
+
+static inline struct data_ring* rt2x00_get_ring(
+	struct rt2x00_dev *rt2x00dev, const unsigned int queue)
+{
+	int atim = test_bit(DEVICE_SUPPORT_ATIM, &rt2x00dev->flags);
+
+	/*
+	 * Check if the rings have been allocated.
+	 */
+	if (!rt2x00dev->tx || !rt2x00dev->bcn)
+		return NULL;
+
+	/*
+	 * Check if we are requesting a reqular TX ring,
+	 * or if we are requesting a Beacon or Atim ring.
+	 * For Atim rings, we should check if it is supported.
+	 */
+	if (queue < rt2x00dev->hw->queues)
+		return &rt2x00dev->tx[queue];
+	else if (queue == IEEE80211_TX_QUEUE_BEACON)
+		return &rt2x00dev->bcn[0];
+	else if (queue == IEEE80211_TX_QUEUE_AFTER_BEACON && atim)
+		return &rt2x00dev->bcn[1];
+
+	return NULL;
+}
+
+/*
+ * For-each loop for the ring array.
+ * Since the all rings are allocated as a single array,
+ * we can start at the rx pointer and move forward to the tx rings.
+ * The 1 + Atim check will assure that the address directly after
+ * the ring array is obtained and the for-each loop exits correctly.
+ */
+#define ring_for_each(__dev, __entry)		\
+	for ((__entry) = (__dev)->rx;		\
+		(__entry) != &(__dev)->bcn[1 +	\
+			test_bit(DEVICE_SUPPORT_ATIM, &rt2x00dev->flags)]; \
+		(__entry)++)
+
+#define txring_for_each(__dev, __entry)		\
+	for ((__entry) = (__dev)->tx; (__entry) != (__dev)->bcn; (__entry)++)
+
+/*
+ * EEPROM access.
+ * The EEPROM is being accessed by word index.
+ */
+static inline void* rt2x00_eeprom_addr(const struct rt2x00_dev *rt2x00dev,
+	const u8 word)
+{
+	return (void*)&rt2x00dev->eeprom[word];
+}
+
+static inline void rt2x00_eeprom_read(const struct rt2x00_dev *rt2x00dev,
+	const u8 word, u16 *data)
+{
+	*data = le16_to_cpu(rt2x00dev->eeprom[word]);
+}
+
+static inline void rt2x00_eeprom_write(const struct rt2x00_dev *rt2x00dev,
+	const u8 word, u16 data)
+{
+	rt2x00dev->eeprom[word] = cpu_to_le16(data);
+}
+
+/*
+ * Link tuning handlers
+ */
+static inline void rt2x00_start_link_tune(struct rt2x00_dev *rt2x00dev)
+{
+	rt2x00dev->link.count = 0;
+	rt2x00dev->link.count_rssi = 0;
+	rt2x00dev->link.total_rssi = 0;
+	rt2x00dev->link.curr_noise = 0;
+
+	queue_delayed_work(rt2x00dev->workqueue,
+		&rt2x00dev->link.work, LINK_TUNE_INTERVAL);
+}
+
+static inline void rt2x00_stop_link_tune(struct rt2x00_dev *rt2x00dev)
+{
+	if (work_pending(&rt2x00dev->link.work.work))
+		cancel_rearming_delayed_workqueue(
+			rt2x00dev->workqueue, &rt2x00dev->link.work);
+}
+
+static inline void rt2x00_update_link_rssi(struct link *link, u32 rssi)
+{
+	link->count_rssi++;
+	link->total_rssi += rssi;
+}
+
+static inline u32 rt2x00_get_link_rssi(struct link *link)
+{
+	u32 average = 0;
+
+	if (link->count_rssi && link->total_rssi)
+		average = link->total_rssi / link->count_rssi;
+
+	link->count_rssi = 0;
+	link->total_rssi = 0;
+
+	return average;
+}
+
+/*
+ * Chipset handlers
+ */
+static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev,
+	const u16 rt, const u16 rf, const u32 rev)
+{
+	INFO(rt2x00dev,
+		"Chipset detected - rt: %04x, rf: %04x, rev: %08x.\n",
+		rt, rf, rev);
+
+	rt2x00dev->chip.rt = rt;
+	rt2x00dev->chip.rf = rf;
+	rt2x00dev->chip.rev = rev;
+}
+
+static inline char rt2x00_rt(const struct rt2x00_chip *chipset, const u16 chip)
+{
+	return (chipset->rt == chip);
+}
+
+static inline char rt2x00_rf(const struct rt2x00_chip *chipset, const u16 chip)
+{
+	return (chipset->rf == chip);
+}
+
+static inline u16 rt2x00_rev(const struct rt2x00_chip *chipset)
+{
+	return chipset->rev;
+}
+
+/*
+ * Device specific rate value.
+ * We will have to create the device specific rate value
+ * passed to the ieee80211 kernel. We need to make it a consist of
+ * multiple fields because we want to store more then 1 device specific
+ * values inside the value.
+ *	1 - rate, stored as 100 kbit/s.
+ *	2 - preamble, short_preamble enabled flag.
+ *	3 - MASK_RATE, which rates are enabled in this mode, this mask
+ *	corresponds with the TX register format for the current device.
+ *	4 - plcp, 802.11b rates are device specific,
+ *	802.11g rates are set according to the ieee802.11a-1999 p.14.
+ * The bit to enable preamble is set in a seperate define.
+ */
+#define DEV_RATE	FIELD32(0x000007ff)
+#define DEV_PREAMBLE	FIELD32(0x00000800)
+#define DEV_RATEMASK	FIELD32(0x00fff000)
+#define DEV_PLCP	FIELD32(0xff000000)
+
+/*
+ * Bitmask for MASK_RATE
+ */
+#define DEV_RATE_1MB	0x00000001
+#define DEV_RATE_2MB	0x00000002
+#define DEV_RATE_5_5MB	0x00000004
+#define DEV_RATE_11MB	0x00000008
+#define DEV_RATE_6MB	0x00000010
+#define DEV_RATE_9MB	0x00000020
+#define DEV_RATE_12MB	0x00000040
+#define DEV_RATE_18MB	0x00000080
+#define DEV_RATE_24MB	0x00000100
+#define DEV_RATE_36MB	0x00000200
+#define DEV_RATE_48MB	0x00000400
+#define DEV_RATE_54MB	0x00000800
+
+/*
+ * Bitmask groups of bitrates
+ */
+#define DEV_BASIC_RATE \
+	( DEV_RATE_1MB | DEV_RATE_2MB | DEV_RATE_5_5MB | DEV_RATE_11MB | \
+	  DEV_RATE_6MB | DEV_RATE_12MB | DEV_RATE_24MB )
+
+#define DEV_CCK_RATE \
+	( DEV_RATE_1MB | DEV_RATE_2MB | DEV_RATE_5_5MB | DEV_RATE_11MB )
+
+#define DEV_OFDM_RATE \
+	( DEV_RATE_6MB | DEV_RATE_9MB | DEV_RATE_12MB | DEV_RATE_18MB | \
+	  DEV_RATE_24MB | DEV_RATE_36MB | DEV_RATE_48MB | DEV_RATE_54MB )
+
+/*
+ * Macro's to set and get specific fields from the device specific val and val2
+ * fields inside the ieee80211_rate entry.
+ */
+#define DEVICE_SET_RATE_FIELD(__value, __mask) \
+	(int)( ((__value) << DEV_##__mask.bit_offset) & DEV_##__mask.bit_mask )
+
+#define DEVICE_GET_RATE_FIELD(__value, __mask) \
+	(int)( ((__value) & DEV_##__mask.bit_mask) >> DEV_##__mask.bit_offset )
+
+/*
+ * Duration calculations
+ * The rate variable passed is: 100kbs.
+ * To convert from bytes to bits we multiply size with 8,
+ * then the size is multiplied with 10 to make the
+ * real rate -> rate argument correction.
+ */
+static inline u16 get_duration(const unsigned int size, const u8 rate)
+{
+	return ((size * 8 * 10) / rate);
+}
+
+static inline u16 get_duration_res(const unsigned int size, const u8 rate)
+{
+	return ((size * 8 * 10) % rate);
+}
+
+#endif /* RT2X00_H */
diff --git a/package/rt2x00/src/rt2x00_compat.h b/package/rt2x00/src/rt2x00_compat.h
new file mode 100644
index 0000000..111c51e
--- /dev/null
+++ b/package/rt2x00/src/rt2x00_compat.h
@@ -0,0 +1,60 @@
+/*
+ * RT2X00 Compatability fixes for specific kernels.
+ */
+#ifndef RT2X00_COMPAT_H
+#define RT2X00_COMPAT_H
+
+/*
+ * First include the 2 config headers.
+ * The rt2x00_config.h should overrule
+ * the kernel configuration.
+ */
+#include <linux/autoconf.h>
+#include "rt2x00_config.h"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+
+/*
+ * Check minimal requirements.
+ */
+#if (!defined(CONFIG_MAC80211) && !defined(CONFIG_MAC80211_MODULE))
+#error mac80211 support not enabled in kernel!
+#endif
+
+#if !defined(CONFIG_WLAN_80211)
+#error 802.11 wlan card support not enabled in kernel!
+#endif
+
+#if (defined(CONFIG_RT2400PCI) || defined(CONFIG_RT2500PCI) || defined(CONFIG_RT61PCI))
+#if (!defined(CONFIG_PCI) && !defined(CONFIG_PCI_MODULE))
+#error PCI has been disabled in your kernel!
+#endif
+#if (!defined(CONFIG_EEPROM_93CX6) && !defined(CONFIG_EEPROM_93CX6_MODULE))
+#error EEPROM_93CX6 has been disabled in your kernel!
+#endif
+#endif
+
+#if (defined(CONFIG_RT2500USB) || defined(CONFIG_RT73USB))
+#if (!defined(CONFIG_USB) && !defined(CONFIG_USB_MODULE))
+#error USB has been disabled in your kernel!
+#endif
+#endif
+
+#if (defined(CONFIG_RT61PCI) || defined(CONFIG_RT73USB))
+#if (!defined(CONFIG_FW_LOADER) && !defined(CONFIG_FW_LOADER_MODULE))
+#error Firmware loading has been disabled in your kernel!
+#endif
+#if (!defined(CONFIG_CRC_ITU_T) && !defined(CONFIG_CRC_ITU_T_MODULE))
+#error CRC_ITU_T loading has been disabled in your kernel!
+#endif
+#endif
+
+#if (defined(CONFIG_RT2400PCI_BUTTON) || defined(CONFIG_RT2500PCI_BUTTON) || defined(CONFIG_RT61PCI_BUTTON))
+#if (!defined(CONFIG_RFKILL) && !defined (CONFIG_RFKILL_MODULE))
+#error RFKILL has been disabled in your kernel!
+#endif
+#endif
+
+#endif /* RT2X00_COMPAT_H */
diff --git a/package/rt2x00/src/rt2x00_config.h b/package/rt2x00/src/rt2x00_config.h
new file mode 100644
index 0000000..8d63434
--- /dev/null
+++ b/package/rt2x00/src/rt2x00_config.h
@@ -0,0 +1,66 @@
+#ifndef CONFIG_RT2X00
+#define CONFIG_RT2X00
+#endif
+
+#ifndef CONFIG_RT2X00_DEBUG
+#define CONFIG_RT2X00_DEBUG
+#endif
+
+#ifndef CONFIG_RT2X00_DEBUGFS
+#define CONFIG_RT2X00_DEBUGFS
+#endif
+
+#undef CONFIG_RT2X00_ASM
+
+#ifndef CONFIG_RT2400PCI
+#define CONFIG_RT2400PCI
+#endif
+
+#undef CONFIG_RT2400PCI_BUTTON
+
+#ifndef CONFIG_RT2500PCI
+#define CONFIG_RT2500PCI
+#endif
+
+#undef CONFIG_RT2500PCI_BUTTON
+
+#ifndef CONFIG_RT2500USB
+#define CONFIG_RT2500USB
+#endif
+
+#ifndef CONFIG_RT61PCI
+#define CONFIG_RT61PCI
+#endif
+
+#undef CONFIG_RT61PCI_BUTTON
+
+#ifndef CONFIG_RT73USB
+#define CONFIG_RT73USB
+#endif
+
+#ifndef CONFIG_D80211
+#define CONFIG_D80211
+#endif
+
+#ifndef CONFIG_D80211_DEBUG
+#define CONFIG_D80211_DEBUG
+#endif
+
+#undef CONFIG_D80211_ASM
+
+#ifndef CONFIG_CRC_ITU_T
+#define CONFIG_CRC_ITU_T
+#endif
+
+#undef CONFIG_CRC_ITU_T_ASM
+
+#ifndef CONFIG_EEPROM_93CX6
+#define CONFIG_EEPROM_93CX6
+#endif
+
+#undef CONFIG_EEPROM_93CX6_ASM
+
+#undef CONFIG_RFKILL
+
+#undef CONFIG_RFKILL_ASM
+
diff --git a/package/rt2x00/src/rt2x00debug.c b/package/rt2x00/src/rt2x00debug.c
new file mode 100644
index 0000000..cb61870
--- /dev/null
+++ b/package/rt2x00/src/rt2x00debug.c
@@ -0,0 +1,360 @@
+/*
+	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.
+	Supported chipsets: RT2460, RT2560, RT2570,
+	rt2561, rt2561s, rt2661, rt2571W & rt2671.
+ */
+
+#include <linux/debugfs.h>
+
+#include <asm/uaccess.h>
+
+#include "rt2x00.h"
+
+#define PRINT_REG8_STR		( "0x%.2x\n" )
+#define PRINT_REG16_STR		( "0x%.4x\n" )
+#define PRINT_REG32_STR		( "0x%.8x\n" )
+#define PRINT_REG_LEN_MAX	( 16 )
+#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
+	 */
+	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;
+
+	/*
+	 * 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;
+};
+
+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;
+}
+
+static ssize_t rt2x00debug_file_read(void *device, char __user *buf,
+	loff_t *offset, unsigned int word, const struct rt2x00debug_reg *reg)
+{
+	unsigned long value;
+	unsigned int size;
+	char *line;
+
+	if (*offset)
+		return 0;
+
+	line = kzalloc(PRINT_REG_LEN_MAX, GFP_KERNEL);
+	if (!line)
+		return -ENOMEM;
+
+	reg->read(device, word, &value);
+
+	if (reg->word_size == sizeof(u8))
+		size = sprintf(line, PRINT_REG8_STR, (u8)value);
+	else if (reg->word_size == sizeof(u16))
+		size = sprintf(line, PRINT_REG16_STR, (u16)value);
+	else
+		size = sprintf(line, PRINT_REG32_STR, (u32)value);
+
+	if (copy_to_user(buf, line, size))
+		goto exit;
+
+	kfree(line);
+
+	*offset += size;
+	return size;
+
+exit:
+	kfree(line);
+
+	return -EFAULT;
+}
+
+static ssize_t rt2x00debug_file_write(void *device, const char __user *buf,
+	loff_t *offset, unsigned int word, unsigned int length,
+	const struct rt2x00debug_reg *reg)
+{
+	unsigned long value;
+	int size;
+	char *line;
+
+	line = kzalloc(length, GFP_KERNEL);
+	if (!line)
+		return -ENOMEM;
+
+	if (copy_from_user(line, buf, length))
+		goto exit;
+
+	size = strlen(line);
+	value = simple_strtoul(line, NULL, 0);
+
+	reg->write(device, word, &value);
+
+	kfree(line);
+
+	*offset += size;
+	return size;
+
+exit:
+	kfree(line);
+
+	return -EFAULT;
+}
+
+#define RT2X00DEBUGFS_OPS_READ(__name)					\
+	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;		\
+		const struct rt2x00debug_reg *reg = &debug->reg_##__name;\
+									\
+		if (intf->offset_##__name > reg->word_count)		\
+			return -EINVAL;					\
+									\
+		return rt2x00debug_file_read(intf->rt2x00dev, buf,	\
+			offset, intf->offset_##__name, reg);		\
+	}
+
+RT2X00DEBUGFS_OPS_READ(csr);
+RT2X00DEBUGFS_OPS_READ(eeprom);
+RT2X00DEBUGFS_OPS_READ(bbp);
+
+#define RT2X00DEBUGFS_OPS_WRITE(__name)					\
+	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;		\
+		const struct rt2x00debug_reg *reg = &debug->reg_##__name;\
+									\
+		if (intf->offset_##__name > reg->word_count)		\
+			return -EINVAL;					\
+									\
+		return rt2x00debug_file_write(intf->rt2x00dev, buf,	\
+			offset, intf->offset_##__name, length, reg);	\
+	}
+
+RT2X00DEBUGFS_OPS_WRITE(csr);
+RT2X00DEBUGFS_OPS_WRITE(eeprom);
+RT2X00DEBUGFS_OPS_WRITE(bbp);
+
+#define RT2X00DEBUGFS_OPS(__name)					\
+	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);
+RT2X00DEBUGFS_OPS(eeprom);
+RT2X00DEBUGFS_OPS(bbp);
+
+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(3 * PRINT_LINE_LEN_MAX, GFP_KERNEL);
+	if (!data)
+		return NULL;
+
+	blob->data = data;
+	data += sprintf(data, "csr length: %d\n", debug->reg_csr.word_count);
+	data += sprintf(data, "eeprom length: %d\n",
+		debug->reg_eeprom.word_count);
+	data += sprintf(data, "bbp length: %d\n", debug->reg_bbp.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;
+
+	intf->csr_off_entry = debugfs_create_u32("csr_offset",
+		S_IRUGO | S_IWUSR, intf->driver_folder, &intf->offset_csr);
+	if (IS_ERR(intf->csr_off_entry))
+		goto exit;
+
+	intf->csr_val_entry = debugfs_create_file("csr_value",
+		S_IRUGO | S_IWUSR, intf->driver_folder, intf,
+		&rt2x00debug_fop_csr);
+	if (IS_ERR(intf->csr_val_entry))
+		goto exit;
+
+	intf->eeprom_off_entry = debugfs_create_u32("eeprom_offset",
+		S_IRUGO | S_IWUSR, intf->driver_folder, &intf->offset_eeprom);
+	if (IS_ERR(intf->eeprom_off_entry))
+		goto exit;
+
+	intf->eeprom_val_entry = debugfs_create_file("eeprom_value",
+		S_IRUGO | S_IWUSR, intf->driver_folder, intf,
+		&rt2x00debug_fop_eeprom);
+	if (IS_ERR(intf->eeprom_val_entry))
+		goto exit;
+
+	intf->bbp_off_entry = debugfs_create_u32("bbp_offset",
+		S_IRUGO | S_IWUSR, intf->driver_folder, &intf->offset_bbp);
+	if (IS_ERR(intf->bbp_off_entry))
+		goto exit;
+
+	intf->bbp_val_entry = debugfs_create_file("bbp_value",
+		S_IRUGO | S_IWUSR, intf->driver_folder, intf,
+		&rt2x00debug_fop_bbp);
+	if (IS_ERR(intf->bbp_val_entry))
+		goto exit;
+
+	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->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;
+}
diff --git a/package/rt2x00/src/rt2x00debug.h b/package/rt2x00/src/rt2x00debug.h
new file mode 100644
index 0000000..8c8f5a3
--- /dev/null
+++ b/package/rt2x00/src/rt2x00debug.h
@@ -0,0 +1,66 @@
+/*
+	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.
+	Supported chipsets: RT2460, RT2560, RT2570,
+	rt2561, rt2561s, rt2661, rt2571W & rt2671.
+ */
+
+#ifndef RT2X00DEBUG_H
+#define RT2X00DEBUG_H
+
+#include <net/wireless.h>
+
+typedef void (debug_access_t)(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data);
+
+struct rt2x00debug_reg {
+	debug_access_t *read;
+	debug_access_t *write;
+
+	unsigned int word_size;
+	unsigned int word_count;
+};
+
+struct rt2x00debug {
+	/*
+	 * Reference to the modules structure.
+	 */
+	struct module *owner;
+
+	/*
+	 * Register access information.
+	 */
+	struct rt2x00debug_reg reg_csr;
+	struct rt2x00debug_reg reg_eeprom;
+	struct rt2x00debug_reg reg_bbp;
+};
+
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+void rt2x00debug_register(struct rt2x00_dev *rt2x00dev);
+void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev);
+#else /* CONFIG_RT2X00_LIB_DEBUGFS */
+static inline void rt2x00debug_register(struct rt2x00_dev *rt2x00dev){}
+static inline void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev){}
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+
+#endif /* RT2X00DEBUG_H */
diff --git a/package/rt2x00/src/rt2x00dev.c b/package/rt2x00/src/rt2x00dev.c
new file mode 100644
index 0000000..448f1bc
--- /dev/null
+++ b/package/rt2x00/src/rt2x00dev.c
@@ -0,0 +1,1082 @@
+/*
+	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 device routines.
+	Supported chipsets: RT2460, RT2560, RT2570,
+	rt2561, rt2561s, rt2661, rt2571W & rt2671.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2x00lib"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+
+#include "rt2x00.h"
+#include "rt2x00dev.h"
+
+/*
+ * Radio control handlers.
+ */
+int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	int status;
+
+	/*
+	 * Don't enable the radio twice.
+	 * or if the hardware button has been disabled.
+	 */
+	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
+	    (test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags) &&
+	     !test_bit(DEVICE_ENABLED_RADIO_HW, &rt2x00dev->flags)))
+		return 0;
+
+	status = rt2x00dev->ops->lib->set_device_state(
+		rt2x00dev, STATE_RADIO_ON);
+	if (status)
+		return status;
+
+	__set_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags);
+
+	rt2x00lib_toggle_rx(rt2x00dev, 1);
+
+	ieee80211_start_queues(rt2x00dev->hw);
+
+	return 0;
+}
+
+void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	if (!__test_and_clear_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+		return;
+
+	ieee80211_stop_queues(rt2x00dev->hw);
+
+	rt2x00lib_toggle_rx(rt2x00dev, 0);
+
+	rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_OFF);
+}
+
+void rt2x00lib_toggle_rx(struct rt2x00_dev *rt2x00dev, int enable)
+{
+	/*
+	 * When we are disabling the rx, we should also stop the link tuner.
+	 */
+	if (!enable && work_pending(&rt2x00dev->link.work.work))
+		rt2x00_stop_link_tune(rt2x00dev);
+
+	rt2x00dev->ops->lib->set_device_state(rt2x00dev,
+		enable ? STATE_RADIO_RX_ON : STATE_RADIO_RX_OFF);
+
+	/*
+	 * When we are enabling the rx, we should also start the link tuner.
+	 */
+	if (enable)
+		rt2x00_start_link_tune(rt2x00dev);
+}
+
+static void rt2x00lib_link_tuner(struct work_struct *work)
+{
+	struct rt2x00_dev *rt2x00dev =
+		container_of(work, struct rt2x00_dev, link.work.work);
+	int rssi;
+
+	/*
+	 * Update promisc mode (this function will first check
+	 * if updating is really required).
+	 */
+	rt2x00lib_config_promisc(rt2x00dev, rt2x00dev->interface.promisc);
+
+	/*
+	 * Cancel all link tuning if the eeprom has indicated
+	 * it is not required.
+	 */
+	if (test_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags))
+		return;
+
+	/*
+	 * Retrieve link quality.
+	 * Also convert rssi to dBm using the max_rssi value.
+	 */
+	rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
+	rssi -= rt2x00dev->hw->max_rssi;
+
+	rt2x00dev->ops->lib->link_tuner(rt2x00dev, rssi);
+
+	/*
+	 * Increase tuner counter, and reschedule the next link tuner run.
+	 */
+	rt2x00dev->link.count++;
+	queue_delayed_work(rt2x00dev->workqueue, &rt2x00dev->link.work,
+		LINK_TUNE_INTERVAL);
+}
+
+/*
+ * Config handlers
+ */
+void rt2x00lib_config_type(struct rt2x00_dev *rt2x00dev, const int type)
+{
+	if (!(is_interface_present(&rt2x00dev->interface) ^
+	      test_bit(INTERFACE_ENABLED, &rt2x00dev->flags)) &&
+	    !(is_monitor_present(&rt2x00dev->interface) ^
+	      test_bit(INTERFACE_ENABLED_MONITOR, &rt2x00dev->flags)))
+		return;
+
+	rt2x00dev->ops->lib->config_type(rt2x00dev, type);
+
+	if (type != IEEE80211_IF_TYPE_MNTR) {
+		if (is_interface_present(&rt2x00dev->interface))
+			__set_bit(INTERFACE_ENABLED, &rt2x00dev->flags);
+		else
+			__clear_bit(INTERFACE_ENABLED, &rt2x00dev->flags);
+	} else {
+		if (is_monitor_present(&rt2x00dev->interface))
+			__set_bit(INTERFACE_ENABLED_MONITOR,
+				&rt2x00dev->flags);
+		else
+			__clear_bit(INTERFACE_ENABLED_MONITOR,
+				&rt2x00dev->flags);
+	}
+}
+
+void rt2x00lib_config_phymode(struct rt2x00_dev *rt2x00dev, const int phymode)
+{
+	if (rt2x00dev->rx_status.phymode == phymode)
+		return;
+
+	rt2x00dev->ops->lib->config_phymode(rt2x00dev, phymode);
+
+	rt2x00dev->rx_status.phymode = phymode;
+}
+
+void rt2x00lib_config_channel(struct rt2x00_dev *rt2x00dev, const int value,
+	const int channel, const int freq, const int txpower)
+{
+	if (channel == rt2x00dev->rx_status.channel)
+		return;
+
+	rt2x00dev->ops->lib->config_channel(rt2x00dev, value, channel, txpower);
+
+	INFO(rt2x00dev, "Switching channel. "
+		"RF1: 0x%08x, RF2: 0x%08x, RF3: 0x%08x, RF3: 0x%08x.\n",
+		rt2x00dev->rf1, rt2x00dev->rf2,
+		rt2x00dev->rf3, rt2x00dev->rf4);
+
+	rt2x00dev->rx_status.freq = freq;
+	rt2x00dev->rx_status.channel = channel;
+}
+
+void rt2x00lib_config_promisc(struct rt2x00_dev *rt2x00dev, const int promisc)
+{
+	/*
+	 * Monitor mode implies promisc mode enabled.
+	 * In all other instances, check if we need to toggle promisc mode.
+	 */
+	if (is_monitor_present(&rt2x00dev->interface) &&
+	    !test_bit(INTERFACE_ENABLED_PROMISC, &rt2x00dev->flags)) {
+		rt2x00dev->ops->lib->config_promisc(rt2x00dev, 1);
+		__set_bit(INTERFACE_ENABLED_PROMISC, &rt2x00dev->flags);
+	}
+
+	if (test_bit(INTERFACE_ENABLED_PROMISC, &rt2x00dev->flags) != promisc) {
+		rt2x00dev->ops->lib->config_promisc(rt2x00dev, promisc);
+		__change_bit(INTERFACE_ENABLED_PROMISC, &rt2x00dev->flags);
+	}
+}
+
+void rt2x00lib_config_txpower(struct rt2x00_dev *rt2x00dev, const int txpower)
+{
+	if (txpower == rt2x00dev->tx_power)
+		return;
+
+	rt2x00dev->ops->lib->config_txpower(rt2x00dev, txpower);
+
+	rt2x00dev->tx_power = txpower;
+}
+
+void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
+	const int antenna_tx, const int antenna_rx)
+{
+	if (rt2x00dev->rx_status.antenna == antenna_rx)
+		return;
+
+	rt2x00dev->ops->lib->config_antenna(rt2x00dev, antenna_tx, antenna_rx);
+
+	rt2x00dev->rx_status.antenna = antenna_rx;
+}
+
+/*
+ * Driver initialization handlers.
+ */
+static void rt2x00lib_channel(struct ieee80211_channel *entry,
+	const int channel, const int tx_power, const int value)
+{
+	entry->chan = channel;
+	if (channel <= 14)
+		entry->freq = 2407 + (5 * channel);
+	else
+		entry->freq = 5000 + (5 * channel);
+	entry->val = value;
+	entry->flag =
+		IEEE80211_CHAN_W_IBSS |
+		IEEE80211_CHAN_W_ACTIVE_SCAN |
+		IEEE80211_CHAN_W_SCAN;
+	entry->power_level = tx_power;
+	entry->antenna_max = 0xff;
+}
+
+static void rt2x00lib_rate(struct ieee80211_rate *entry,
+	const int rate,const int mask, const int plcp, const int flags)
+{
+	entry->rate = rate;
+	entry->val =
+		DEVICE_SET_RATE_FIELD(rate, RATE) |
+		DEVICE_SET_RATE_FIELD(mask, RATEMASK) |
+		DEVICE_SET_RATE_FIELD(plcp, PLCP);
+	entry->flags = flags;
+	entry->val2 = entry->val;
+	if (entry->flags & IEEE80211_RATE_PREAMBLE2)
+		entry->val2 |= DEVICE_SET_RATE_FIELD(1, PREAMBLE);
+	entry->min_rssi_ack = 0;
+	entry->min_rssi_ack_delta = 0;
+}
+
+static int rt2x00lib_init_hw_modes(struct rt2x00_dev *rt2x00dev,
+	struct hw_mode_spec *spec)
+{
+	struct ieee80211_hw *hw = rt2x00dev->hw;
+	struct ieee80211_hw_mode *hwmodes;
+	struct ieee80211_channel *channels;
+	struct ieee80211_rate *rates;
+	unsigned int i;
+	unsigned char tx_power;
+
+	hwmodes = kzalloc(sizeof(*hwmodes) * spec->num_modes, GFP_KERNEL);
+	if (!hwmodes)
+		goto exit;
+
+	channels = kzalloc(sizeof(*channels) * spec->num_channels, GFP_KERNEL);
+	if (!channels)
+		goto exit_free_modes;
+
+	rates = kzalloc(sizeof(*rates) * spec->num_rates, GFP_KERNEL);
+	if (!rates)
+		goto exit_free_channels;
+
+	/*
+	 * Initialize Rate list.
+	 */
+	rt2x00lib_rate(&rates[0], 10, 0x001, 0x00, IEEE80211_RATE_CCK);
+	rt2x00lib_rate(&rates[1], 20, 0x003, 0x01, IEEE80211_RATE_CCK_2);
+	rt2x00lib_rate(&rates[2], 55, 0x007, 0x02, IEEE80211_RATE_CCK_2);
+	rt2x00lib_rate(&rates[3], 110, 0x00f, 0x03, IEEE80211_RATE_CCK_2);
+
+	if (spec->num_rates > 4) {
+		rt2x00lib_rate(&rates[4], 60, 0x01f, 0x0b, IEEE80211_RATE_OFDM);
+		rt2x00lib_rate(&rates[5], 90, 0x03f, 0x0f, IEEE80211_RATE_OFDM);
+		rt2x00lib_rate(&rates[6], 120, 0x07f, 0x0a, IEEE80211_RATE_OFDM);
+		rt2x00lib_rate(&rates[7], 180, 0x0ff, 0x0e, IEEE80211_RATE_OFDM);
+		rt2x00lib_rate(&rates[8], 240, 0x1ff, 0x09, IEEE80211_RATE_OFDM);
+		rt2x00lib_rate(&rates[9], 360, 0x3ff, 0x0d, IEEE80211_RATE_OFDM);
+		rt2x00lib_rate(&rates[10], 480, 0x7ff, 0x08, IEEE80211_RATE_OFDM);
+		rt2x00lib_rate(&rates[11], 540, 0xfff, 0x0c, IEEE80211_RATE_OFDM);
+	}
+
+	/*
+	 * Initialize Channel list.
+	 */
+	for (i = 0; i < 14; i++)
+		rt2x00lib_channel(&channels[i], i + 1,
+			spec->tx_power_bg[i], spec->chan_val_bg[i]);
+
+	if (spec->num_channels > 14) {
+		for (i = 14; i < spec->num_channels; i++) {
+			if (i < 22)
+				channels[i].chan = 36;
+			else if (i < 33)
+				channels[i].chan = 100;
+			else
+				channels[i].chan = 149;
+			channels[i].chan += ((i - 14) * 4);
+
+			if (spec->tx_power_a)
+				tx_power = spec->tx_power_a[i];
+			else
+				tx_power = spec->tx_power_default;
+
+			rt2x00lib_channel(&channels[i],
+				channels[i].chan, tx_power,
+				spec->chan_val_a[i]);
+		}
+	}
+
+	/*
+	 * Intitialize 802.11b
+	 * Rates: CCK.
+	 * Channels: OFDM.
+	 */
+	if (spec->num_modes > HWMODE_B) {
+		hwmodes[HWMODE_B].mode = MODE_IEEE80211B;
+		hwmodes[HWMODE_B].num_channels = 14;
+		hwmodes[HWMODE_B].num_rates = 4;
+		hwmodes[HWMODE_B].channels = channels;
+		hwmodes[HWMODE_B].rates = rates;
+	}
+
+	/*
+	 * Intitialize 802.11g
+	 * Rates: CCK, OFDM.
+	 * Channels: OFDM.
+	 */
+	if (spec->num_modes > HWMODE_G) {
+		hwmodes[HWMODE_G].mode = MODE_IEEE80211G;
+		hwmodes[HWMODE_G].num_channels = 14;
+		hwmodes[HWMODE_G].num_rates = spec->num_rates;
+		hwmodes[HWMODE_G].channels = channels;
+		hwmodes[HWMODE_G].rates = rates;
+	}
+
+	/*
+	 * Intitialize 802.11a
+	 * Rates: OFDM.
+	 * Channels: OFDM, UNII, HiperLAN2.
+	 */
+	if (spec->num_modes > HWMODE_A) {
+		hwmodes[HWMODE_A].mode = MODE_IEEE80211A;
+		hwmodes[HWMODE_A].num_channels = spec->num_channels - 14;
+		hwmodes[HWMODE_A].num_rates = spec->num_rates - 4;
+		hwmodes[HWMODE_A].channels = &channels[14];
+		hwmodes[HWMODE_A].rates = &rates[4];
+	}
+
+	if (spec->num_modes > HWMODE_G &&
+	    ieee80211_register_hwmode(hw, &hwmodes[HWMODE_G]))
+		goto exit_free_rates;
+
+	if (spec->num_modes > HWMODE_B &&
+	    ieee80211_register_hwmode(hw, &hwmodes[HWMODE_B]))
+		goto exit_free_rates;
+
+	if (spec->num_modes > HWMODE_A &&
+	    ieee80211_register_hwmode(hw, &hwmodes[HWMODE_A]))
+		goto exit_free_rates;
+
+	rt2x00dev->hwmodes = hwmodes;
+
+	return 0;
+
+exit_free_rates:
+	kfree(rates);
+
+exit_free_channels:
+	kfree(channels);
+
+exit_free_modes:
+	kfree(hwmodes);
+
+exit:
+	ERROR(rt2x00dev, "Allocation ieee80211 modes failed.\n");
+	return -ENOMEM;
+}
+
+static void rt2x00lib_deinit_hw(struct rt2x00_dev *rt2x00dev)
+{
+	if (test_bit(DEVICE_INITIALIZED_HW, &rt2x00dev->flags))
+		ieee80211_unregister_hw(rt2x00dev->hw);
+
+	if (likely(rt2x00dev->hwmodes)) {
+		kfree(rt2x00dev->hwmodes->channels);
+		kfree(rt2x00dev->hwmodes->rates);
+		kfree(rt2x00dev->hwmodes);
+		rt2x00dev->hwmodes = NULL;
+	}
+}
+
+static int rt2x00lib_init_hw(struct rt2x00_dev *rt2x00dev)
+{
+	struct hw_mode_spec *spec = &rt2x00dev->spec;
+	int status;
+
+	/*
+	 * Initialize device.
+	 */
+	SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->device);
+
+	/*
+	 * Initialize MAC address.
+	 */
+	if (!is_valid_ether_addr(spec->mac_addr)) {
+		ERROR(rt2x00dev, "Invalid MAC addr: " MAC_FMT ".\n",
+			MAC_ARG(spec->mac_addr));
+		return -EINVAL;
+	}
+
+	rt2x00dev->ops->lib->config_mac_addr(rt2x00dev, spec->mac_addr);
+	SET_IEEE80211_PERM_ADDR(rt2x00dev->hw, spec->mac_addr);
+
+	/*
+	 * Initialize HW modes.
+	 */
+	status = rt2x00lib_init_hw_modes(rt2x00dev, spec);
+	if (status)
+		return status;
+
+	/*
+	 * Register HW.
+	 */
+	status = ieee80211_register_hw(rt2x00dev->hw);
+	if (status) {
+		rt2x00lib_deinit_hw(rt2x00dev);
+		return status;
+	}
+
+	__set_bit(DEVICE_INITIALIZED_HW, &rt2x00dev->flags);
+
+	return 0;
+}
+
+/*
+ * Initialization/uninitialization handlers.
+ */
+static int rt2x00lib_alloc_ring(struct data_ring *ring,
+	const u16 max_entries, const u16 data_size, const u16 desc_size)
+{
+	struct data_entry *entry;
+	unsigned int i;
+
+	ring->stats.limit = max_entries;
+	ring->data_size = data_size;
+	ring->desc_size = desc_size;
+
+	/*
+	 * Allocate all ring entries.
+	 */
+	entry = kzalloc(ring->stats.limit * sizeof(*entry), GFP_KERNEL);
+	if (!entry)
+		return -ENOMEM;
+
+	for (i = 0; i < ring->stats.limit; i++) {
+		entry[i].flags = 0;
+		entry[i].ring = ring;
+		entry[i].skb = NULL;
+	}
+
+	ring->entry = entry;
+
+	return 0;
+}
+
+static int rt2x00lib_allocate_rings(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_ring *ring;
+
+	/*
+	 * Allocate the RX ring.
+	 */
+	if (rt2x00lib_alloc_ring(rt2x00dev->rx,
+		RX_ENTRIES, DATA_FRAME_SIZE, rt2x00dev->ops->rxd_size))
+		return -ENOMEM;
+
+	/*
+	 * First allocate the TX rings.
+	 */
+	txring_for_each(rt2x00dev, ring) {
+		if (rt2x00lib_alloc_ring(ring,
+			TX_ENTRIES, DATA_FRAME_SIZE, rt2x00dev->ops->txd_size))
+			return -ENOMEM;
+	}
+
+	/*
+	 * Allocate the BEACON ring.
+	 */
+	if (rt2x00lib_alloc_ring(&rt2x00dev->bcn[0],
+		BEACON_ENTRIES, MGMT_FRAME_SIZE, rt2x00dev->ops->txd_size))
+		return -ENOMEM;
+
+	/*
+	 * Allocate the Atim ring.
+	 */
+	if (test_bit(DEVICE_SUPPORT_ATIM, &rt2x00dev->flags)) {
+		if (rt2x00lib_alloc_ring(&rt2x00dev->bcn[1],
+			ATIM_ENTRIES, DATA_FRAME_SIZE, rt2x00dev->ops->txd_size))
+			return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static void rt2x00lib_free_rings(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_ring *ring;
+
+	ring_for_each(rt2x00dev, ring) {
+		kfree(ring->entry);
+		ring->entry = NULL;
+	}
+}
+
+int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev)
+{
+	int status;
+
+	if (test_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
+		return 0;
+
+	/*
+	 * Allocate all data rings.
+	 */
+	status = rt2x00lib_allocate_rings(rt2x00dev);
+	if (status) {
+		ERROR(rt2x00dev, "DMA allocation failed.\n");
+		return status;
+	}
+
+	/*
+	 * Initialize the device.
+	 */
+	status = rt2x00dev->ops->lib->initialize(rt2x00dev);
+	if (status)
+		goto exit;
+
+	__set_bit(DEVICE_INITIALIZED, &rt2x00dev->flags);
+
+	/*
+	 * Register the rfkill handler.
+	 */
+	status = rt2x00lib_register_rfkill(rt2x00dev);
+	if (status)
+		goto exit_unitialize;
+
+	return 0;
+
+exit_unitialize:
+	rt2x00lib_uninitialize(rt2x00dev);
+
+exit:
+	rt2x00lib_free_rings(rt2x00dev);
+
+	return status;
+}
+
+void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev)
+{
+	if (!__test_and_clear_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
+		return;
+
+	/*
+	 * Flush out all pending work.
+	 */
+	flush_workqueue(rt2x00dev->workqueue);
+
+	/*
+	 * Unregister rfkill.
+	 */
+	rt2x00lib_unregister_rfkill(rt2x00dev);
+
+	/*
+	 * Allow the HW to uninitialize.
+	 */
+	rt2x00dev->ops->lib->uninitialize(rt2x00dev);
+
+	/*
+	 * Free allocated datarings.
+	 */
+	rt2x00lib_free_rings(rt2x00dev);
+}
+
+/*
+ * driver allocation handlers.
+ */
+static int rt2x00lib_alloc_rings(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_ring *ring;
+	unsigned int ring_num;
+
+	/*
+	 * We need the following rings:
+	 * RX: 1
+	 * TX: hw->queues
+	 * Beacon: 1
+	 * Atim: 1 (if supported)
+	 */
+	ring_num = 2 + rt2x00dev->hw->queues +
+		test_bit(DEVICE_SUPPORT_ATIM, &rt2x00dev->flags);
+
+	ring = kzalloc(sizeof(*ring) * ring_num, GFP_KERNEL);
+	if (!ring) {
+		ERROR(rt2x00dev, "Ring allocation failed.\n");
+		return -ENOMEM;
+	}
+
+	/*
+	 * Initialize pointers
+	 */
+	rt2x00dev->rx = &ring[0];
+	rt2x00dev->tx = &ring[1];
+	rt2x00dev->bcn = &ring[1 + rt2x00dev->hw->queues];
+
+	/*
+	 * Initialize ring parameters.
+	 * cw_min: 2^5 = 32.
+	 * cw_max: 2^10 = 1024.
+	 */
+	ring_for_each(rt2x00dev, ring) {
+		ring->rt2x00dev = rt2x00dev;
+		ring->tx_params.aifs = 2;
+		ring->tx_params.cw_min = 5;
+		ring->tx_params.cw_max = 10;
+	}
+
+	return 0;
+}
+
+int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev)
+{
+	int retval = -ENOMEM;
+
+	/*
+	 * Create workqueue.
+	 */
+	rt2x00dev->workqueue = create_singlethread_workqueue(DRV_NAME);
+	if (!rt2x00dev->workqueue)
+		goto exit;
+
+	/*
+	 * Let the driver probe the device to detect the capabilities.
+	 */
+	retval = rt2x00dev->ops->lib->init_hw(rt2x00dev);
+	if (retval) {
+		ERROR(rt2x00dev, "Failed to allocate device.\n");
+		goto exit;
+	}
+
+	/*
+	 * Initialize configuration work.
+	 */
+	INIT_DELAYED_WORK(&rt2x00dev->link.work, rt2x00lib_link_tuner);
+
+	/*
+	 * Reset current working type.
+	 */
+	rt2x00dev->interface.type = -EINVAL;
+
+	/*
+	 * Allocate ring array.
+	 */
+	retval = rt2x00lib_alloc_rings(rt2x00dev);
+	if (retval)
+		goto exit;
+
+	/*
+	 * Initialize ieee80211 structure.
+	 */
+	retval = rt2x00lib_init_hw(rt2x00dev);
+	if (retval) {
+		ERROR(rt2x00dev, "Failed to initialize hw.\n");
+		goto exit;
+	}
+
+	/*
+	 * Allocatie rfkill.
+	 */
+	retval = rt2x00lib_allocate_rfkill(rt2x00dev);
+	if (retval)
+		goto exit;
+
+	/*
+	 * Open the debugfs entry.
+	 */
+	rt2x00debug_register(rt2x00dev);
+
+	/*
+	 * Check if we need to load the firmware.
+	 */
+	if (test_bit(FIRMWARE_REQUIRED, &rt2x00dev->flags)) {
+		/*
+		 * Request firmware and wait with further
+		 * initializing of the card until the firmware
+		 * has been loaded.
+		 */
+		retval = rt2x00lib_load_firmware(rt2x00dev);
+		if (retval)
+			goto exit;
+	}
+
+	return 0;
+
+exit:
+	rt2x00lib_remove_dev(rt2x00dev);
+
+	return retval;
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_probe_dev);
+
+void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev)
+{
+	/*
+	 * Disable radio.
+	 */
+	rt2x00lib_disable_radio(rt2x00dev);
+
+	/*
+	 * Uninitialize device.
+	 */
+	rt2x00lib_uninitialize(rt2x00dev);
+
+	/*
+	 * Close debugfs entry.
+	 */
+	rt2x00debug_deregister(rt2x00dev);
+
+	/*
+	 * Free rfkill
+	 */
+	rt2x00lib_free_rfkill(rt2x00dev);
+
+	/*
+	 * Free ieee80211_hw memory.
+	 */
+	rt2x00lib_deinit_hw(rt2x00dev);
+
+	/*
+	 * Free workqueue.
+	 */
+	if (likely(rt2x00dev->workqueue)) {
+		destroy_workqueue(rt2x00dev->workqueue);
+		rt2x00dev->workqueue = NULL;
+	}
+
+	/*
+	 * Free ring structures.
+	 */
+	kfree(rt2x00dev->rx);
+	rt2x00dev->rx = NULL;
+	rt2x00dev->tx = NULL;
+	rt2x00dev->bcn = NULL;
+
+	/*
+	 * Free EEPROM memory.
+	 */
+	kfree(rt2x00dev->eeprom);
+	rt2x00dev->eeprom = NULL;
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_remove_dev);
+
+/*
+ * Device state handlers
+ */
+int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev,
+	pm_message_t state)
+{
+	int retval;
+
+	NOTICE(rt2x00dev, "Going to sleep.\n");
+
+	rt2x00lib_disable_radio(rt2x00dev);
+
+	/*
+	 * Set device mode to sleep for power management.
+	 */
+	retval = rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_SLEEP);
+	if (retval)
+		return retval;
+
+	rt2x00lib_remove_dev(rt2x00dev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_suspend);
+
+int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev)
+{
+	int retval;
+
+	NOTICE(rt2x00dev, "Waking up.\n");
+
+	retval = rt2x00lib_probe_dev(rt2x00dev);
+	if (retval) {
+		ERROR(rt2x00dev, "Failed to allocate device.\n");
+		return retval;
+	}
+
+	/*
+	 * Set device mode to awake for power management.
+	 */
+	retval = rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE);
+	if (retval)
+		return retval;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_resume);
+
+/*
+ * Interrupt context handlers.
+ */
+void rt2x00lib_txdone(struct data_entry *entry,
+	const int status, const int retry)
+{
+	struct rt2x00_dev *rt2x00dev = entry->ring->rt2x00dev;
+	struct ieee80211_tx_status *tx_status = &entry->tx_status;
+	struct ieee80211_low_level_stats *stats = &rt2x00dev->low_level_stats;
+
+	/*
+	 * Update TX statistics.
+	 */
+	tx_status->flags = 0;
+	tx_status->ack_signal = 0;
+	tx_status->excessive_retries = (status == TX_FAIL_RETRY);
+	tx_status->retry_count = retry;
+
+	if (!(tx_status->control.flags & IEEE80211_TXCTL_NO_ACK)) {
+		if (status == TX_SUCCESS || status == TX_SUCCESS_RETRY)
+			tx_status->flags |= IEEE80211_TX_STATUS_ACK;
+		else
+			stats->dot11ACKFailureCount++;
+	}
+
+	tx_status->queue_length = entry->ring->stats.limit;
+	tx_status->queue_number = tx_status->control.queue;
+
+	if (tx_status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS) {
+		if (status == TX_SUCCESS || status == TX_SUCCESS_RETRY)
+			stats->dot11RTSSuccessCount++;
+		else
+			stats->dot11RTSFailureCount++;
+	}
+
+	/*
+	 * Send the tx_status to mac80211,
+	 * that method also cleans up the skb structure.
+	 */
+	ieee80211_tx_status_irqsafe(rt2x00dev->hw, entry->skb, tx_status);
+
+	entry->skb = NULL;
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_txdone);
+
+void rt2x00lib_rxdone(struct data_entry *entry, char *data,
+	const int size, const int signal, const int rssi, const int ofdm)
+{
+	struct rt2x00_dev *rt2x00dev = entry->ring->rt2x00dev;
+	struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status;
+	struct ieee80211_hw_mode *mode;
+	struct ieee80211_rate *rate;
+	struct sk_buff *skb;
+	unsigned int i;
+	int val = 0;
+
+	/*
+	 * Update RX statistics.
+	 */
+	mode = &rt2x00dev->hwmodes[rt2x00dev->curr_hwmode];
+	for (i = 0; i < mode->num_rates; i++) {
+		rate = &mode->rates[i];
+
+		/*
+		 * When frame was received with an OFDM bitrate,
+		 * the signal is the PLCP value. If it was received with
+		 * a CCK bitrate the signal is the rate in 0.5kbit/s.
+		 */
+		if (!ofdm)
+			val = DEVICE_GET_RATE_FIELD(rate->val, RATE);
+		else
+			val = DEVICE_GET_RATE_FIELD(rate->val, PLCP);
+
+		if (val == signal) {
+			/*
+			 * Check for preamble bit.
+			 */
+			if (signal & 0x08)
+				val = rate->val2;
+			val = rate->val;
+			break;
+		}
+	}
+
+	rx_status->rate = val;
+	rx_status->ssi = rssi;
+	rx_status->noise = rt2x00dev->link.curr_noise;
+	rt2x00_update_link_rssi(&rt2x00dev->link, rssi);
+
+	/*
+	 * Let's allocate a sk_buff where we can store the received data in,
+	 * note that if data is NULL, we still have to allocate a sk_buff
+	 * but that we should use that to replace the sk_buff which is already
+	 * inside the entry.
+	 */
+	skb = dev_alloc_skb(size + NET_IP_ALIGN);
+	if (!skb)
+		return;
+
+	skb_reserve(skb, NET_IP_ALIGN);
+	skb_put(skb, size);
+
+	if (data) {
+		memcpy(skb->data, data, size);
+		entry->skb = skb;
+		skb = NULL;
+	}
+
+	ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb, rx_status);
+	entry->skb = skb;
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_rxdone);
+
+/*
+ * TX descriptor initializer
+ */
+void rt2x00lib_write_tx_desc(struct rt2x00_dev *rt2x00dev,
+	struct data_entry *entry, struct data_desc *txd,
+	struct ieee80211_hdr *ieee80211hdr, unsigned int length,
+	struct ieee80211_tx_control *control)
+{
+	struct data_entry_desc desc;
+	int tx_rate;
+	int bitrate;
+	int duration;
+	int residual;
+	u16 frame_control;
+	u16 seq_ctrl;
+
+	/*
+	 * Identify queue
+	 */
+	if (control->queue < rt2x00dev->hw->queues)
+		desc.queue = control->queue;
+	else
+		desc.queue = 15;
+
+	/*
+	 * Read required fields from ieee80211 header.
+	 */
+	frame_control = le16_to_cpu(ieee80211hdr->frame_control);
+	seq_ctrl = le16_to_cpu(ieee80211hdr->seq_ctrl);
+
+	tx_rate = control->tx_rate;
+
+	/*
+	 * Check if this is a rts frame
+	 */
+	if (is_rts_frame(frame_control)) {
+		__set_bit(ENTRY_TXD_RTS_FRAME, &entry->flags);
+		if (control->rts_cts_rate)
+			tx_rate = control->rts_cts_rate;
+	}
+
+	/*
+	 * Check for OFDM
+	 */
+	if (DEVICE_GET_RATE_FIELD(tx_rate, RATEMASK) & DEV_OFDM_RATE)
+		__set_bit(ENTRY_TXD_OFDM_RATE, &entry->flags);
+
+	/*
+	 * Check if more fragments are pending
+	 */
+	if (ieee80211_get_morefrag(ieee80211hdr))
+		__set_bit(ENTRY_TXD_MORE_FRAG, &entry->flags);
+
+	/*
+	 * Check if this is a new sequence
+	 */
+	if ((seq_ctrl & IEEE80211_SCTL_FRAG) == 0)
+		__set_bit(ENTRY_TXD_NEW_SEQ, &entry->flags);
+
+	/*
+	 * Beacons and probe responses require the tsf timestamp
+	 * to be inserted into the frame.
+	 */
+	if (control->queue == IEEE80211_TX_QUEUE_BEACON ||
+	    is_probe_resp(frame_control))
+		__set_bit(ENTRY_TXD_REQ_TIMESTAMP, &entry->flags);
+
+	/*
+	 * Check if ACK is required
+	 */
+	if (!(control->flags & IEEE80211_TXCTL_NO_ACK))
+		__set_bit(ENTRY_TXD_REQ_ACK, &entry->flags);
+
+	/*
+	 * Determine with what IFS priority this frame should be send.
+	 * Set ifs to IFS_SIFS when the this is not the first fragment,
+	 * or this fragment came after RTS/CTS.
+	 */
+	if ((seq_ctrl & IEEE80211_SCTL_FRAG) > 0 ||
+	    test_bit(ENTRY_TXD_RTS_FRAME, &entry->flags))
+		desc.ifs = IFS_SIFS;
+	else
+		desc.ifs = IFS_BACKOFF;
+
+	/*
+	 * How the length should be processed depends
+	 * on if we are working with OFDM rates or not.
+	 */
+	if (test_bit(ENTRY_TXD_OFDM_RATE, &entry->flags)) {
+		residual = 0;
+		desc.length_high = ((length + FCS_LEN) >> 6) & 0x3f;
+		desc.length_low = ((length + FCS_LEN) & 0x3f);
+
+	} else {
+		bitrate = DEVICE_GET_RATE_FIELD(tx_rate, RATE);
+
+		/*
+		 * Convert length to microseconds.
+		 */
+		residual = get_duration_res(length + FCS_LEN, bitrate);
+		duration = get_duration(length + FCS_LEN, bitrate);
+
+		if (residual != 0)
+			duration++;
+
+		desc.length_high = duration >> 8;
+		desc.length_low = duration & 0xff;
+	}
+
+	/*
+	 * Create the signal and service values.
+	 */
+	desc.signal = DEVICE_GET_RATE_FIELD(tx_rate, PLCP);
+	if (DEVICE_GET_RATE_FIELD(tx_rate, PREAMBLE))
+		desc.signal |= 0x08;
+
+	desc.service = 0x04;
+	if (residual <= (8 % 11))
+		desc.service |= 0x80;
+
+	rt2x00dev->ops->lib->write_tx_desc(rt2x00dev, entry, txd, &desc,
+		ieee80211hdr, length, control);
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_write_tx_desc);
+
+/*
+ * rt2x00lib module information.
+ */
+MODULE_AUTHOR(DRV_PROJECT);
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("rt2x00 library");
+MODULE_LICENSE("GPL");
diff --git a/package/rt2x00/src/rt2x00dev.h b/package/rt2x00/src/rt2x00dev.h
new file mode 100644
index 0000000..ee0bbfe
--- /dev/null
+++ b/package/rt2x00/src/rt2x00dev.h
@@ -0,0 +1,60 @@
+/*
+	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 for the rt2x00lib module.
+	Supported chipsets: RT2460, RT2560, RT2570,
+	rt2561, rt2561s, rt2661, rt2571W & rt2671.
+ */
+
+#ifndef RT2X00DEV_H
+#define RT2X00DEV_H
+
+#include "rt2x00debug.h"
+#include "rt2x00firmware.h"
+#include "rt2x00rfkill.h"
+
+/*
+ * Radio control.
+ */
+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);
+
+/*
+ * Initialization/uninitialization handlers.
+ */
+int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * Config handlers.
+ */
+void rt2x00lib_config_type(struct rt2x00_dev *rt2x00dev, const int type);
+void rt2x00lib_config_phymode(struct rt2x00_dev *rt2x00dev, const int phymode);
+void rt2x00lib_config_channel(struct rt2x00_dev *rt2x00dev, const int value,
+	const int channel, const int freq, const int txpower);
+void rt2x00lib_config_promisc(struct rt2x00_dev *rt2x00dev, const int promisc);
+void rt2x00lib_config_txpower(struct rt2x00_dev *rt2x00dev, const int txpower);
+void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
+	const int antenna_tx, const int antenna_rx);
+
+#endif /* RT2X00DEV_H */
diff --git a/package/rt2x00/src/rt2x00firmware.c b/package/rt2x00/src/rt2x00firmware.c
new file mode 100644
index 0000000..3aef107
--- /dev/null
+++ b/package/rt2x00/src/rt2x00firmware.c
@@ -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 specific routines.
+	Supported chipsets: rt2561, rt2561s, rt2661, rt2571W & rt2671.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2x00lib"
+
+#include <linux/crc-itu-t.h>
+#include <linux/firmware.h>
+
+#include "rt2x00.h"
+#include "rt2x00firmware.h"
+
+static void rt2x00lib_load_firmware_continued(const struct firmware *fw,
+	void *context)
+{
+	struct rt2x00_dev *rt2x00dev = context;
+	u16 crc;
+	u16 tmp;
+
+	if (!fw || !fw->size || !fw->data) {
+		ERROR(rt2x00dev, "Failed to read Firmware.\n");
+		goto exit_failed;
+	}
+
+	/*
+	 * 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");
+		goto exit_failed;
+	}
+
+	/*
+	 * Send firmware to the device.
+	 */
+	if (rt2x00dev->ops->lib->load_firmware(rt2x00dev, fw->data, fw->size))
+		goto exit_failed;
+
+	INFO(rt2x00dev, "Firmware detected - version: %d.%d.\n",
+		fw->data[fw->size - 4], fw->data[fw->size - 3]);
+
+	__set_bit(FIRMWARE_LOADED, &rt2x00dev->flags);
+
+	return;
+
+exit_failed:
+	rt2x00debug_deregister(rt2x00dev);
+
+	__set_bit(FIRMWARE_FAILED, &rt2x00dev->flags);
+}
+
+int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev)
+{
+	char *fw_name;
+	int status = -EINVAL;
+
+	/*
+	 * Read correct firmware from harddisk.
+	 */
+	fw_name = rt2x00dev->ops->lib->get_fw_name(rt2x00dev);
+	BUG_ON(fw_name == NULL);
+
+	INFO(rt2x00dev, "Loading firmware file '%s'.\n", fw_name);
+
+	status = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
+		fw_name, rt2x00dev->device, rt2x00dev,
+		&rt2x00lib_load_firmware_continued);
+
+	if (status)
+		ERROR(rt2x00dev, "Failed to request Firmware.\n");
+
+	return status;
+}
+
+int rt2x00lib_load_firmware_wait(struct rt2x00_dev *rt2x00dev)
+{
+	unsigned int i;
+
+	if (!test_bit(FIRMWARE_REQUIRED, &rt2x00dev->flags))
+		return 0;
+
+	for (i = 0; i < 150; i++) {
+		if (test_bit(FIRMWARE_FAILED, &rt2x00dev->flags))
+			return -EIO;
+		if (test_bit(FIRMWARE_LOADED, &rt2x00dev->flags))
+			return 0;
+		msleep(20);
+	}
+
+	ERROR(rt2x00dev, "Firmware loading timed out.\n");
+	return -ETIMEDOUT;
+}
diff --git a/package/rt2x00/src/rt2x00firmware.h b/package/rt2x00/src/rt2x00firmware.h
new file mode 100644
index 0000000..adba9c2
--- /dev/null
+++ b/package/rt2x00/src/rt2x00firmware.h
@@ -0,0 +1,49 @@
+/*
+	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 for the firmware loader.
+	Supported chipsets: rt2561, rt2561s, rt2661, rt2571W & rt2671.
+ */
+
+#ifndef RT2X00FIRMWARE_H
+#define RT2X00FIRMWARE_H
+
+#ifdef CONFIG_RT2X00_LIB_FIRMWARE
+int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev);
+int rt2x00lib_load_firmware_wait(struct rt2x00_dev *rt2x00dev);
+#else /* CONFIG_RT2X00_LIB_FIRMWARE */
+static inline int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev)
+{
+	/*
+	 * This shouldn't happen.
+	 */
+	BUG();
+	return 0;
+}
+
+static inline int rt2x00lib_load_firmware_wait(struct rt2x00_dev *rt2x00dev)
+{
+	return 0;
+}
+#endif /* CONFIG_RT2X00_LIB_FIRMWARE */
+
+#endif /* RT2X00FIRMWARE_H */
diff --git a/package/rt2x00/src/rt2x00lib.h b/package/rt2x00/src/rt2x00lib.h
new file mode 100644
index 0000000..c9b5ee7
--- /dev/null
+++ b/package/rt2x00/src/rt2x00lib.h
@@ -0,0 +1,118 @@
+/*
+	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 for the rt2x00lib module.
+	Supported chipsets: RT2460, RT2560, RT2570,
+	rt2561, rt2561s, rt2661, rt2571W & rt2671.
+ */
+
+#ifndef RT2X00LIB_H
+#define RT2X00LIB_H
+
+struct rt2x00_dev;
+struct data_desc;
+struct data_entry_desc;
+struct data_entry;
+
+/*
+ * Details about the supported modes, rates and channels
+ * of a particular chipset. This is used by rt2x00lib
+ * to build the ieee80211_hw_mode array for mac80211.
+ */
+struct hw_mode_spec {
+	/*
+	 * Default mac address.
+	 */
+	char *mac_addr;
+
+	/*
+	 * Number of modes, rates and channels.
+	 */
+	int num_modes;
+	int num_rates;
+	int num_channels;
+
+	/*
+	 * txpower values.
+	 */
+	const u8 *tx_power_a;
+	const u8 *tx_power_bg;
+	u8 tx_power_default;
+
+	/*
+	 * Device/chipset specific value.
+	 */
+	const u32 *chan_val_a;
+	const u32 *chan_val_bg;
+};
+
+/*
+ * Driver allocation handlers.
+ */
+int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * Driver status handlers.
+ */
+int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state);
+int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * Interrupt context handlers.
+ */
+void rt2x00lib_txdone(struct data_entry *entry,
+	const int status, const int retry);
+void rt2x00lib_rxdone(struct data_entry *entry, char *data,
+	const int size, const int signal, const int rssi, const int ofdm);
+
+/*
+ * TX descriptor initializer
+ */
+void rt2x00lib_write_tx_desc(struct rt2x00_dev *rt2x00dev,
+	struct data_entry *entry, struct data_desc *txd,
+	struct ieee80211_hdr *ieee80211hdr, unsigned int length,
+	struct ieee80211_tx_control *control);
+
+/*
+ * mac80211 handlers.
+ */
+int rt2x00lib_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
+	struct ieee80211_tx_control *control);
+int rt2x00lib_reset(struct ieee80211_hw *hw);
+int rt2x00lib_open(struct ieee80211_hw *hw);
+int rt2x00lib_stop(struct ieee80211_hw *hw);
+int rt2x00lib_add_interface(struct ieee80211_hw *hw,
+	struct ieee80211_if_init_conf *conf);
+void rt2x00lib_remove_interface(struct ieee80211_hw *hw,
+	struct ieee80211_if_init_conf *conf);
+int rt2x00lib_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
+int rt2x00lib_config_interface(struct ieee80211_hw *hw, int if_id,
+	struct ieee80211_if_conf *conf);
+void rt2x00lib_set_multicast_list(struct ieee80211_hw *hw,
+	unsigned short flags, int mc_count);
+int rt2x00lib_get_tx_stats(struct ieee80211_hw *hw,
+	struct ieee80211_tx_queue_stats *stats);
+int rt2x00lib_conf_tx(struct ieee80211_hw *hw, int queue,
+	const struct ieee80211_tx_queue_params *params);
+
+#endif /* RT2X00LIB_H */
diff --git a/package/rt2x00/src/rt2x00mac.c b/package/rt2x00/src/rt2x00mac.c
new file mode 100644
index 0000000..349353b
--- /dev/null
+++ b/package/rt2x00/src/rt2x00mac.c
@@ -0,0 +1,441 @@
+/*
+	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 mac80211 routines.
+	Supported chipsets: RT2460, RT2560, RT2570,
+	rt2561, rt2561s, rt2661, rt2571W & rt2671.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2x00lib"
+
+#include <linux/netdevice.h>
+
+#include "rt2x00.h"
+#include "rt2x00dev.h"
+
+static int rt2x00_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,
+			frag_skb->data, frag_skb->len, control,
+			(struct ieee80211_cts*)(skb->data));
+	else
+		ieee80211_rts_get(rt2x00dev->hw,
+			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 rt2x00lib_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 = rt2x00_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 (control->flags & IEEE80211_TXCTL_USE_RTS_CTS &&
+	    !is_cts_frame(frame_control) && !is_rts_frame(frame_control)) {
+		if (rt2x00_ring_free(ring) <= 1)
+			return NETDEV_TX_BUSY;
+
+		if (rt2x00_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(rt2x00lib_tx);
+
+int rt2x00lib_reset(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	rt2x00lib_disable_radio(rt2x00dev);
+	return rt2x00lib_enable_radio(rt2x00dev);
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_reset);
+
+int rt2x00lib_open(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	int status;
+
+	/*
+	 * We must wait on the firmware before
+	 * we can safely continue.
+	 */
+	status = rt2x00lib_load_firmware_wait(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(rt2x00lib_open);
+
+int rt2x00lib_stop(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	rt2x00lib_disable_radio(rt2x00dev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_stop);
+
+int rt2x00lib_add_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(&rt2x00dev->interface))
+		return -ENOBUFS;
+
+	/*
+	 * 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);
+		intf->promisc = 0;
+	}
+
+	/*
+	 * If this is the first interface which is being added,
+	 * we should write the MAC address to the device.
+	 */
+	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+		rt2x00dev->ops->lib->config_mac_addr(rt2x00dev, conf->mac_addr);
+
+	/*
+	 * Enable periodic link tuning if this is a non-monitor interface.
+	 */
+	if (conf->type != IEEE80211_IF_TYPE_MNTR)
+		rt2x00_start_link_tune(rt2x00dev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_add_interface);
+
+void rt2x00lib_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(&rt2x00dev->interface))
+		return;
+
+	/*
+	 * We support muliple monitor mode interfaces.
+	 * All we need to do is decrease the monitor_count.
+	 */
+	if (conf->type == IEEE80211_IF_TYPE_MNTR) {
+		intf->monitor_count--;
+	} else if (intf->type == conf->type) {
+		intf->id = 0;
+		intf->type = -EINVAL;
+		memset(&intf->bssid, 0x00, ETH_ALEN);
+		intf->promisc = 0;
+	}
+
+	/*
+	 * When this is a non-monitor mode, stop the periodic link tuning.
+	 */
+	if (conf->type != IEEE80211_IF_TYPE_MNTR)
+		rt2x00_stop_link_tune(rt2x00dev);
+
+	/*
+	 * Check if we still have 1 non-monitor or a monitor
+	 * interface enabled. In that case we should update the
+	 * registers.
+	 */
+	if (is_monitor_present(&rt2x00dev->interface) ^
+	    is_interface_present(&rt2x00dev->interface)) {
+		if (is_interface_present(&rt2x00dev->interface))
+			rt2x00lib_config_type(rt2x00dev,
+				rt2x00dev->interface.type);
+		else
+			rt2x00lib_config_type(rt2x00dev,
+				IEEE80211_IF_TYPE_MNTR);
+	}
+
+	/*
+	 * Check which interfaces have been disabled.
+	 */
+	if (!is_interface_present(&rt2x00dev->interface))
+		__clear_bit(INTERFACE_ENABLED, &rt2x00dev->flags);
+	else if (!is_monitor_present(&rt2x00dev->interface))
+		__clear_bit(INTERFACE_ENABLED_MONITOR, &rt2x00dev->flags);
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_remove_interface);
+
+int rt2x00lib_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	/*
+	 * 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_phymode(rt2x00dev, conf->phymode);
+	rt2x00lib_config_channel(rt2x00dev, conf->channel_val,
+		conf->channel, conf->freq, conf->power_level);
+	rt2x00lib_config_txpower(rt2x00dev, conf->power_level);
+	rt2x00lib_config_antenna(rt2x00dev,
+		conf->antenna_sel_tx, conf->antenna_sel_rx);
+	rt2x00dev->ops->lib->config_duration(rt2x00dev,
+		(conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME),
+		conf->beacon_int);
+
+	/*
+	 * 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(rt2x00lib_config);
+
+int rt2x00lib_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;
+
+	/*
+	 * 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);
+
+	/*
+	 * Enable configuration.
+	 * For Monitor mode, promisc mode will be forced on.
+	 */
+	rt2x00lib_config_type(rt2x00dev, conf->type);
+	rt2x00lib_config_promisc(rt2x00dev, rt2x00dev->interface.promisc);
+	rt2x00dev->ops->lib->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(rt2x00lib_config_interface);
+
+void rt2x00lib_set_multicast_list(struct ieee80211_hw *hw,
+	unsigned short flags, int mc_count)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	/*
+	 * Promisc mode is forced on for Monitor interfaces.
+	 */
+	if (is_monitor_present(&rt2x00dev->interface))
+		return;
+
+	/*
+	 * Check if the new state is different then the old state.
+	 */
+	if (test_bit(INTERFACE_ENABLED_PROMISC, &rt2x00dev->flags) ==
+	    (flags & IFF_PROMISC))
+		return;
+
+	rt2x00dev->interface.promisc = (flags & IFF_PROMISC);
+
+	/*
+	 * Schedule the link tuner if this does not run
+	 * automatically. The link tuner will be automatically
+	 * switched off when it is not required.
+	 */
+	if (!work_pending(&rt2x00dev->link.work.work))
+		queue_work(rt2x00dev->workqueue, &rt2x00dev->link.work.work);
+}
+EXPORT_SYMBOL_GPL(rt2x00lib_set_multicast_list);
+
+int rt2x00lib_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(rt2x00lib_get_tx_stats);
+
+int rt2x00lib_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 = rt2x00_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(rt2x00lib_conf_tx);
diff --git a/package/rt2x00/src/rt2x00pci.c b/package/rt2x00/src/rt2x00pci.c
new file mode 100644
index 0000000..4156ea3
--- /dev/null
+++ b/package/rt2x00/src/rt2x00pci.c
@@ -0,0 +1,407 @@
+/*
+	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: rt2x00pci
+	Abstract: rt2x00 generic pci device routines.
+	Supported chipsets: rt2460, rt2560, rt2561, rt2561s & rt2661.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2x00pci"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+
+#include "rt2x00.h"
+#include "rt2x00pci.h"
+
+/*
+ * Beacon handlers.
+ */
+int rt2x00pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
+	struct ieee80211_tx_control *control)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	struct data_ring *ring =
+		rt2x00_get_ring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
+	struct data_entry *entry = rt2x00_get_data_entry(ring);
+
+	/*
+	 * Just in case the ieee80211 doesn't set this,
+	 * but we need this queue set for the descriptor
+	 * initialization.
+	 */
+	control->queue = IEEE80211_TX_QUEUE_BEACON;
+
+	/*
+	 * Update the beacon entry.
+	 */
+	memcpy(entry->data_addr, skb->data, skb->len);
+	rt2x00lib_write_tx_desc(rt2x00dev, entry, entry->priv,
+		(struct ieee80211_hdr*)skb->data, skb->len, control);
+
+	/*
+	 * Enable beacon generation.
+	 */
+	rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, control->queue);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00pci_beacon_update);
+
+void rt2x00pci_beacondone(struct rt2x00_dev *rt2x00dev, const int queue)
+{
+	struct data_ring *ring = rt2x00_get_ring(rt2x00dev, queue);
+	struct data_entry *entry = rt2x00_get_data_entry(ring);
+	struct sk_buff *skb;
+
+	skb = ieee80211_beacon_get(rt2x00dev->hw,
+		rt2x00dev->interface.id, &entry->tx_status.control);
+	if (!skb)
+		return;
+
+	rt2x00dev->ops->hw->beacon_update(rt2x00dev->hw, skb,
+		&entry->tx_status.control);
+
+	dev_kfree_skb(skb);
+}
+EXPORT_SYMBOL_GPL(rt2x00pci_beacondone);
+
+/*
+ * TX data handlers.
+ */
+int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev,
+	struct data_ring *ring, struct sk_buff *skb,
+	struct ieee80211_tx_control *control)
+{
+	struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr*)skb->data;
+	struct data_entry *entry = rt2x00_get_data_entry(ring);
+	struct data_desc *txd = entry->priv;
+	u32 word;
+
+	if (rt2x00_ring_full(ring)) {
+		ieee80211_stop_queue(rt2x00dev->hw, control->queue);
+		return -EINVAL;
+	}
+
+	rt2x00_desc_read(txd, 0, &word);
+
+	if (rt2x00_get_field32(word, TXD_ENTRY_AVAILABLE)) {
+		ERROR(rt2x00dev,
+			"Arrived at non-free entry in the non-full queue %d.\n"
+			"Please file bug report to %s.\n",
+			control->queue, DRV_PROJECT);
+		ieee80211_stop_queue(rt2x00dev->hw, control->queue);
+		return -EINVAL;
+	}
+
+	memcpy(entry->data_addr, skb->data, skb->len);
+	rt2x00lib_write_tx_desc(rt2x00dev, entry, txd, ieee80211hdr,
+		skb->len, control);
+	memcpy(&entry->tx_status.control, control, sizeof(*control));
+	entry->skb = skb;
+
+	rt2x00_ring_index_inc(ring);
+
+	if (rt2x00_ring_full(ring))
+		ieee80211_stop_queue(rt2x00dev->hw, control->queue);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00pci_write_tx_data);
+
+/*
+ * Device initialization handlers.
+ */
+#define priv_offset(__ring, __i)				\
+({								\
+	ring->data_addr + (i * ring->desc_size);		\
+})
+
+#define data_addr_offset(__ring, __i)				\
+({								\
+	(__ring)->data_addr					\
+		+ ((__ring)->stats.limit * (__ring)->desc_size)	\
+		+ ((__i) * (__ring)->data_size);		\
+})
+
+#define data_dma_offset(__ring, __i)				\
+({								\
+	(__ring)->data_dma					\
+		+ ((__ring)->stats.limit * (__ring)->desc_size)	\
+		+ ((__i) * (__ring)->data_size);		\
+})
+
+static int rt2x00pci_alloc_ring(struct rt2x00_dev *rt2x00dev,
+	struct data_ring *ring)
+{
+	unsigned int i;
+
+	/*
+	 * Allocate DMA memory for descriptor and buffer.
+	 */
+	ring->data_addr = pci_alloc_consistent(rt2x00dev_pci(rt2x00dev),
+		rt2x00_get_ring_size(ring), &ring->data_dma);
+	if (!ring->data_addr)
+		return -ENOMEM;
+
+	/*
+	 * Initialize all ring entries to contain valid
+	 * addresses.
+	 */
+	for (i = 0; i < ring->stats.limit; i++) {
+		ring->entry[i].priv = priv_offset(ring, i);
+		ring->entry[i].data_addr = data_addr_offset(ring, i);
+		ring->entry[i].data_dma = data_dma_offset(ring, i);
+	}
+
+	return 0;
+}
+
+int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev)
+{
+	struct pci_dev *pci_dev = rt2x00dev_pci(rt2x00dev);
+	struct data_ring *ring;
+	int status;
+
+	/*
+	 * Allocate DMA
+	 */
+	ring_for_each(rt2x00dev, ring) {
+		status = rt2x00pci_alloc_ring(rt2x00dev, ring);
+		if (status)
+			goto exit;
+	}
+
+	/*
+	 * Register interrupt handler.
+	 */
+	status = request_irq(pci_dev->irq, rt2x00dev->ops->lib->irq_handler,
+		IRQF_SHARED, pci_dev->driver->name, rt2x00dev);
+	if (status) {
+		ERROR(rt2x00dev, "IRQ %d allocation failed (error %d).\n",
+			pci_dev->irq, status);
+		return status;
+	}
+
+	return 0;
+
+exit:
+	rt2x00pci_uninitialize(rt2x00dev);
+
+	return status;
+}
+EXPORT_SYMBOL_GPL(rt2x00pci_initialize);
+
+void rt2x00pci_uninitialize(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_ring *ring;
+
+	/*
+	 * Free irq line.
+	 */
+	free_irq(rt2x00dev_pci(rt2x00dev)->irq, rt2x00dev);
+
+	/*
+	 * Free DMA
+	 */
+	ring_for_each(rt2x00dev, ring) {
+		if (ring->data_addr)
+			pci_free_consistent(rt2x00dev_pci(rt2x00dev),
+				rt2x00_get_ring_size(ring),
+				ring->data_addr, ring->data_dma);
+		ring->data_addr = NULL;
+	}
+}
+EXPORT_SYMBOL_GPL(rt2x00pci_uninitialize);
+
+/*
+ * PCI driver handlers.
+ */
+static int rt2x00pci_alloc_csr(struct rt2x00_dev *rt2x00dev)
+{
+	rt2x00dev->csr_addr = ioremap(
+		pci_resource_start(rt2x00dev_pci(rt2x00dev), 0),
+		pci_resource_len(rt2x00dev_pci(rt2x00dev), 0));
+	if (!rt2x00dev->csr_addr) {
+		ERROR(rt2x00dev, "Ioremap failed.\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static void rt2x00pci_free_csr(struct rt2x00_dev *rt2x00dev)
+{
+	if (rt2x00dev->csr_addr) {
+		iounmap(rt2x00dev->csr_addr);
+		rt2x00dev->csr_addr = NULL;
+	}
+}
+
+int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
+{
+	struct rt2x00_ops *ops = (struct rt2x00_ops*)id->driver_data;
+	struct ieee80211_hw *hw;
+	struct rt2x00_dev *rt2x00dev;
+	int retval;
+
+	retval = pci_request_regions(pci_dev, pci_name(pci_dev));
+	if (retval) {
+		ERROR_PROBE("PCI request regions failed.\n");
+		return retval;
+	}
+
+	retval = pci_enable_device(pci_dev);
+	if (retval) {
+		ERROR_PROBE("Enable device failed.\n");
+		goto exit_release_regions;
+	}
+
+	pci_set_master(pci_dev);
+
+	if (pci_set_mwi(pci_dev))
+		ERROR_PROBE("MWI not available.\n");
+
+	if (pci_set_dma_mask(pci_dev, DMA_64BIT_MASK) &&
+	    pci_set_dma_mask(pci_dev, DMA_32BIT_MASK)) {
+		ERROR_PROBE("PCI DMA not supported.\n");
+		retval = -EIO;
+		goto exit_disable_device;
+	}
+
+	hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
+	if (!hw) {
+		ERROR_PROBE("Failed to allocate hardware.\n");
+		retval = -ENOMEM;
+		goto exit_disable_device;
+	}
+
+	pci_set_drvdata(pci_dev, hw);
+
+	rt2x00dev = hw->priv;
+	rt2x00dev->dev = pci_dev;
+	rt2x00dev->device = &pci_dev->dev;
+	rt2x00dev->ops = ops;
+	rt2x00dev->hw = hw;
+
+	retval = rt2x00pci_alloc_csr(rt2x00dev);
+	if (retval)
+		goto exit_free_device;
+
+	retval = rt2x00lib_probe_dev(rt2x00dev);
+	if (retval)
+		goto exit_free_csr;
+
+	return 0;
+
+exit_free_csr:
+	rt2x00pci_free_csr(rt2x00dev);
+
+exit_free_device:
+	ieee80211_free_hw(hw);
+
+exit_disable_device:
+	if (retval != -EBUSY)
+		pci_disable_device(pci_dev);
+
+exit_release_regions:
+	pci_release_regions(pci_dev);
+
+	pci_set_drvdata(pci_dev, NULL);
+
+	return retval;
+}
+EXPORT_SYMBOL_GPL(rt2x00pci_probe);
+
+void rt2x00pci_remove(struct pci_dev *pci_dev)
+{
+	struct ieee80211_hw *hw = pci_get_drvdata(pci_dev);
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	/*
+	 * Free all allocated data.
+	 */
+	rt2x00lib_remove_dev(rt2x00dev);
+	ieee80211_free_hw(hw);
+
+	/*
+	 * Free the PCI device data.
+	 */
+	pci_set_drvdata(pci_dev, NULL);
+	pci_disable_device(pci_dev);
+	pci_release_regions(pci_dev);
+}
+EXPORT_SYMBOL_GPL(rt2x00pci_remove);
+
+#ifdef CONFIG_PM
+int rt2x00pci_suspend(struct pci_dev *pci_dev, pm_message_t state)
+{
+	struct ieee80211_hw *hw = pci_get_drvdata(pci_dev);
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	int retval;
+
+	retval = rt2x00lib_suspend(rt2x00dev, state);
+	if (retval)
+		return retval;
+
+	rt2x00pci_free_csr(rt2x00dev);
+
+	pci_save_state(pci_dev);
+	pci_disable_device(pci_dev);
+	return pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
+}
+EXPORT_SYMBOL_GPL(rt2x00pci_suspend);
+
+int rt2x00pci_resume(struct pci_dev *pci_dev)
+{
+	struct ieee80211_hw *hw = pci_get_drvdata(pci_dev);
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	int retval;
+
+	if (pci_set_power_state(pci_dev, PCI_D0) ||
+	    pci_enable_device(pci_dev) ||
+	    pci_restore_state(pci_dev)) {
+		ERROR(rt2x00dev, "Failed to resume device.\n");
+		return -EIO;
+	}
+
+	retval = rt2x00pci_alloc_csr(rt2x00dev);
+	if (retval)
+		return retval;
+
+	return rt2x00lib_resume(rt2x00dev);
+}
+EXPORT_SYMBOL_GPL(rt2x00pci_resume);
+#endif /* CONFIG_PM */
+
+/*
+ * rt2x00pci module information.
+ */
+MODULE_AUTHOR(DRV_PROJECT);
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("rt2x00 library");
+MODULE_LICENSE("GPL");
diff --git a/package/rt2x00/src/rt2x00pci.h b/package/rt2x00/src/rt2x00pci.h
new file mode 100644
index 0000000..291d0c0
--- /dev/null
+++ b/package/rt2x00/src/rt2x00pci.h
@@ -0,0 +1,112 @@
+/*
+	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: rt2x00pci
+	Abstract: Data structures for the rt2x00pci module.
+	Supported chipsets: rt2460, rt2560, rt2561, rt2561s & rt2661.
+ */
+
+#ifndef RT2X00PCI_H
+#define RT2X00PCI_H
+
+/*
+ * This variable should be used with the
+ * pci_driver structure initialization.
+ */
+#define PCI_DEVICE_DATA(__ops)	.driver_data = (kernel_ulong_t)(__ops)
+
+/*
+ * Register defines.
+ * When register access attempts should be repeated
+ * only REGISTER_BUSY_COUNT attempts with a delay
+ * of REGISTER_BUSY_DELAY us should be taken.
+ */
+#define REGISTER_BUSY_COUNT	5
+#define REGISTER_BUSY_DELAY	100
+
+/*
+ * TX descriptor available flag.
+ * This flag is the combination of the TXD_W0_OWNER_NIC
+ * and TXD_W0_VALID flag which have the same value on all
+ * PCI drivers.
+ */
+#define TXD_ENTRY_AVAILABLE	FIELD32(0x00000003)
+
+/*
+ * Register access.
+ */
+static inline void rt2x00pci_register_read(const struct rt2x00_dev *rt2x00dev,
+	const unsigned long offset, u32 *value)
+{
+	*value = readl(rt2x00dev->csr_addr + offset);
+}
+
+static inline void rt2x00pci_register_multiread(
+	const struct rt2x00_dev *rt2x00dev,
+	const unsigned long offset, void *value, const u16 length)
+{
+	memcpy_fromio(value, rt2x00dev->csr_addr + offset, length);
+}
+
+static inline void rt2x00pci_register_write(const struct rt2x00_dev *rt2x00dev,
+	const unsigned long offset, u32 value)
+{
+	writel(value, rt2x00dev->csr_addr + offset);
+}
+
+static inline void rt2x00pci_register_multiwrite(
+	const struct rt2x00_dev *rt2x00dev,
+	const unsigned long offset, void *value, const u16 length)
+{
+	memcpy_toio(rt2x00dev->csr_addr + offset, value, length);
+}
+
+/*
+ * Beacon handlers.
+ */
+int rt2x00pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
+	struct ieee80211_tx_control *control);
+void rt2x00pci_beacondone(struct rt2x00_dev *rt2x00dev, const int queue);
+
+/*
+ * TX data handlers.
+ */
+int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev,
+	struct data_ring *ring, struct sk_buff *skb,
+	struct ieee80211_tx_control *control);
+
+/*
+ * Device initialization handlers.
+ */
+int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev);
+void rt2x00pci_uninitialize(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * PCI driver handlers.
+ */
+int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id);
+void rt2x00pci_remove(struct pci_dev *pci_dev);
+#ifdef CONFIG_PM
+int rt2x00pci_suspend(struct pci_dev *pci_dev, pm_message_t state);
+int rt2x00pci_resume(struct pci_dev *pci_dev);
+#endif /* CONFIG_PM */
+
+#endif /* RT2X00PCI_H */
diff --git a/package/rt2x00/src/rt2x00rfkill.c b/package/rt2x00/src/rt2x00rfkill.c
new file mode 100644
index 0000000..63062f1
--- /dev/null
+++ b/package/rt2x00/src/rt2x00rfkill.c
@@ -0,0 +1,129 @@
+/*
+	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 rfkill specific routines.
+	Supported chipsets: RT2460, RT2560, rt2561, rt2561s, rt2661.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2x00lib"
+
+#include <linux/rfkill.h>
+
+#include "rt2x00.h"
+
+static int rt2x00lib_toggle_radio(void *data, enum rfkill_state state)
+{
+	struct rt2x00_dev* rt2x00dev = data;
+	int retval = 0;
+
+	if (unlikely(!rt2x00dev))
+		return 0;
+
+	/*
+	 * Only continue if we have an active interface,
+	 * either monitor or non-monitor should be present.
+	 */
+	if (!is_interface_present(&rt2x00dev->interface) &&
+	    !is_monitor_present(&rt2x00dev->interface))
+		return 0;
+
+	if (state == RFKILL_STATE_ON) {
+		INFO(rt2x00dev, "Hardware button pressed, enabling radio.\n");
+		__set_bit(DEVICE_ENABLED_RADIO_HW, &rt2x00dev->flags);
+		retval = rt2x00lib_enable_radio(rt2x00dev);
+	} else if (state == RFKILL_STATE_OFF) {
+		INFO(rt2x00dev, "Hardware button pressed, disabling radio.\n");
+		__clear_bit(DEVICE_ENABLED_RADIO_HW, &rt2x00dev->flags);
+		rt2x00lib_disable_radio(rt2x00dev);
+	}
+
+	return retval;
+}
+
+static void rt2x00lib_rfkill_poll(struct work_struct *work)
+{
+	struct rt2x00_dev *rt2x00dev =
+		container_of(work, struct rt2x00_dev, rfkill_work.work);
+
+	rfkill_switch_all(rt2x00dev->rfkill->type,
+		rt2x00dev->ops->lib->rfkill_poll(rt2x00dev));
+
+	queue_delayed_work(rt2x00dev->workqueue, &rt2x00dev->rfkill_work,
+		RFKILL_POLL_INTERVAL);
+}
+
+int rt2x00lib_register_rfkill(struct rt2x00_dev *rt2x00dev)
+{
+	int status = rfkill_register(rt2x00dev->rfkill);
+	if (status) {
+		ERROR(rt2x00dev, "Failed to register rfkill handler.\n");
+		return status;
+	}
+
+	rt2x00lib_rfkill_poll(&rt2x00dev->rfkill_work.work);
+
+	return !schedule_delayed_work(&rt2x00dev->rfkill_work,
+		RFKILL_POLL_INTERVAL);
+}
+
+void rt2x00lib_unregister_rfkill(struct rt2x00_dev *rt2x00dev)
+{
+	if (delayed_work_pending(&rt2x00dev->rfkill_work))
+		cancel_rearming_delayed_workqueue(
+			rt2x00dev->workqueue, &rt2x00dev->rfkill_work);
+
+	rfkill_unregister(rt2x00dev->rfkill);
+}
+
+int rt2x00lib_allocate_rfkill(struct rt2x00_dev *rt2x00dev)
+{
+	struct rfkill *rfkill;
+
+	if (!test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
+		return 0;
+
+	rfkill = rfkill_allocate(rt2x00dev->device, RFKILL_TYPE_WLAN);
+	if (!rfkill) {
+		ERROR(rt2x00dev, "Failed to allocate rfkill handler.\n");
+		return -ENOMEM;
+	}
+
+	rfkill->name = rt2x00dev->ops->name;
+	rfkill->data = rt2x00dev;
+	rfkill->toggle_radio = rt2x00lib_toggle_radio;
+	rt2x00dev->rfkill = rfkill;
+
+	INIT_DELAYED_WORK(&rt2x00dev->rfkill_work, rt2x00lib_rfkill_poll);
+
+	return 0;
+}
+
+void rt2x00lib_free_rfkill(struct rt2x00_dev *rt2x00dev)
+{
+	if (!test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
+		return;
+
+	rfkill_free(rt2x00dev->rfkill);
+}
diff --git a/package/rt2x00/src/rt2x00rfkill.h b/package/rt2x00/src/rt2x00rfkill.h
new file mode 100644
index 0000000..1bd619d
--- /dev/null
+++ b/package/rt2x00/src/rt2x00rfkill.h
@@ -0,0 +1,51 @@
+/*
+	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 for the rfkill.
+	Supported chipsets: RT2460, RT2560, rt2561, rt2561s, rt2661.
+ */
+
+#ifndef RT2X00RFKILL_H
+#define RT2X00RFKILL_H
+
+#ifdef CONFIG_RT2X00_LIB_RFKILL
+int rt2x00lib_register_rfkill(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_unregister_rfkill(struct rt2x00_dev *rt2x00dev);
+int rt2x00lib_allocate_rfkill(struct rt2x00_dev *rt2x00dev);
+void rt2x00lib_free_rfkill(struct rt2x00_dev *rt2x00dev);
+#else /* CONFIG_RT2X00_LIB_RFKILL */
+static inline int rt2x00lib_register_rfkill(struct rt2x00_dev *rt2x00dev)
+{
+	return 0;
+}
+
+static inline void rt2x00lib_unregister_rfkill(struct rt2x00_dev *rt2x00dev){}
+
+static inline int rt2x00lib_allocate_rfkill(struct rt2x00_dev *rt2x00dev)
+{
+	return 0;
+}
+
+static inline void rt2x00lib_free_rfkill(struct rt2x00_dev *rt2x00dev){}
+#endif /* CONFIG_RT2X00_LIB_RFKILL */
+
+#endif /* RT2X00RFKILL_H */
diff --git a/package/rt2x00/src/rt2x00usb.c b/package/rt2x00/src/rt2x00usb.c
new file mode 100644
index 0000000..6b193d0
--- /dev/null
+++ b/package/rt2x00/src/rt2x00usb.c
@@ -0,0 +1,515 @@
+/*
+	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: rt2x00usb
+	Abstract: rt2x00 generic usb device routines.
+	Supported chipsets: rt2570, rt2571W & rt2671.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt2x00usb"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/usb.h>
+
+#include "rt2x00.h"
+#include "rt2x00usb.h"
+
+/*
+ * Interfacing with the HW.
+ */
+int rt2x00usb_vendor_request(const struct rt2x00_dev *rt2x00dev,
+	const u8 request, const u8 type, const u16 offset,
+	u32 value, void *buffer, const u16 buffer_length, const u16 timeout)
+{
+	struct usb_device *usb_dev = interface_to_usbdev(
+		rt2x00dev_usb(rt2x00dev));
+	int status;
+	unsigned int i;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		status = usb_control_msg(
+			usb_dev,
+			(type == USB_VENDOR_REQUEST_IN) ?
+				usb_rcvctrlpipe(usb_dev, 0) :
+				usb_sndctrlpipe(usb_dev, 0),
+			request, type, value, offset, buffer, buffer_length,
+			timeout);
+		if (status >= 0)
+			return 0;
+	}
+
+	ERROR(rt2x00dev, "vendor request error. Request 0x%02x failed "
+		"for offset 0x%04x with error %d.\n", request, offset, status);
+
+	return status;
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_vendor_request);
+
+/*
+ * Radio handlers
+ */
+void rt2x00usb_enable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	unsigned int i;
+
+	/*
+	 * Start the RX ring.
+	 */
+	for (i = 0; i < rt2x00dev->rx->stats.limit; i++) {
+		__set_bit(ENTRY_OWNER_NIC, &rt2x00dev->rx->entry[i].flags);
+		usb_submit_urb(rt2x00dev->rx->entry[i].priv, GFP_ATOMIC);
+	}
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_enable_radio);
+
+void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_ring *ring;
+	unsigned int i;
+
+	rt2x00usb_vendor_request(rt2x00dev, USB_RX_CONTROL,
+		USB_VENDOR_REQUEST_OUT, 0x00, 0x00, NULL, 0, REGISTER_TIMEOUT);
+
+	/*
+	 * Cancel all rings.
+	 */
+	ring_for_each(rt2x00dev, ring) {
+		for (i = 0; i < ring->stats.limit; i++)
+			usb_kill_urb(ring->entry[i].priv);
+	}
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_disable_radio);
+
+/*
+ * Beacon handlers.
+ */
+int rt2x00usb_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
+	struct ieee80211_tx_control *control)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	struct usb_device *usb_dev =
+		interface_to_usbdev(rt2x00dev_usb(rt2x00dev));
+	struct data_ring *ring =
+		rt2x00_get_ring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
+	struct data_entry *beacon;
+	struct data_entry *guardian;
+	int length;
+
+	/*
+	 * Just in case the ieee80211 doesn't set this,
+	 * but we need this queue set for the descriptor
+	 * initialization.
+	 */
+	control->queue = IEEE80211_TX_QUEUE_BEACON;
+
+	/*
+	 * Obtain 2 entries, one for the guardian byte,
+	 * the second for the actual beacon.
+	 */
+	guardian = rt2x00_get_data_entry(ring);
+	rt2x00_ring_index_inc(ring);
+	beacon = rt2x00_get_data_entry(ring);
+
+	/*
+	 * First we create the beacon.
+	 */
+	skb_push(skb, ring->desc_size);
+	rt2x00lib_write_tx_desc(rt2x00dev, beacon,
+		(struct data_desc*)skb->data,
+		(struct ieee80211_hdr*)(skb->data + ring->desc_size),
+		skb->len - ring->desc_size,
+		control);
+
+	/*
+	 * Length passed to usb_fill_urb cannot be an odd number,
+	 * so add 1 byte to make it even.
+	 */
+	length = skb->len;
+	if (length % 2)
+		length++;
+
+	usb_fill_bulk_urb(
+		beacon->priv,
+		usb_dev,
+		usb_sndbulkpipe(usb_dev, 1),
+		skb->data,
+		length,
+		rt2x00usb_beacondone,
+		beacon);
+
+	beacon->skb = skb;
+
+	/*
+	 * Second we need to create the guardian byte.
+	 * We only need a single byte, so lets recycle
+	 * the 'flags' field we are not using for beacons.
+	 */
+	guardian->flags = 0;
+	usb_fill_bulk_urb(
+		guardian->priv,
+		usb_dev,
+		usb_sndbulkpipe(usb_dev, 1),
+		&guardian->flags,
+		1,
+		rt2x00usb_beacondone,
+		guardian);
+
+	/*
+	 * Send out the guardian byte.
+	 */
+	usb_submit_urb(guardian->priv, GFP_ATOMIC);
+
+	/*
+	 * Enable beacon generation.
+	 */
+	rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, control->queue);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_beacon_update);
+
+void rt2x00usb_beacondone(struct urb *urb)
+{
+	struct data_entry *entry = (struct data_entry*)urb->context;
+	struct data_ring *ring = entry->ring;
+
+	if (!test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags))
+		return;
+
+	/*
+	 * Check if this was the guardian beacon,
+	 * if that was the case we need to send the real beacon now.
+	 * Otherwise we should free the sk_buffer, the device
+	 * should be doing the rest of the work now.
+	 */
+	if (ring->index == 1) {
+		rt2x00_ring_index_done_inc(ring);
+		entry = rt2x00_get_data_entry(ring);
+		usb_submit_urb(entry->priv, GFP_ATOMIC);
+		rt2x00_ring_index_inc(ring);
+	} else if (ring->index_done == 1) {
+		entry = rt2x00_get_data_entry_done(ring);
+		if (entry->skb) {
+			dev_kfree_skb(entry->skb);
+			entry->skb = NULL;
+		}
+		rt2x00_ring_index_done_inc(ring);
+	}
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_beacondone);
+
+/*
+ * TX data handlers.
+ */
+static void rt2x00usb_interrupt_txdone(struct urb *urb)
+{
+	struct data_entry *entry = (struct data_entry*)urb->context;
+	struct data_ring *ring = entry->ring;
+	struct rt2x00_dev *rt2x00dev = ring->rt2x00dev;
+	struct data_desc *txd = (struct data_desc *)entry->skb->data;
+	u32 word;
+	int tx_status;
+
+	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
+	    !__test_and_clear_bit(ENTRY_OWNER_NIC, &entry->flags))
+		return;
+
+	rt2x00_desc_read(txd, 0, &word);
+
+	/*
+	 * Remove the descriptor data from the buffer.
+	 */
+	skb_pull(entry->skb, ring->desc_size);
+
+	/*
+	 * Obtain the status about this packet.
+	 */
+	tx_status = !urb->status ? TX_SUCCESS : TX_FAIL_RETRY;
+
+	rt2x00lib_txdone(entry, tx_status, 0);
+
+	/*
+	 * Make this entry available for reuse.
+	 */
+	entry->flags = 0;
+	rt2x00_ring_index_done_inc(entry->ring);
+
+	/*
+	 * If the data ring was full before the txdone handler
+	 * we must make sure the packet queue in the mac80211 stack
+	 * is reenabled when the txdone handler has finished.
+	 */
+	if (!rt2x00_ring_full(ring))
+		ieee80211_wake_queue(rt2x00dev->hw,
+			entry->tx_status.control.queue);
+}
+
+int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev,
+	struct data_ring *ring, struct sk_buff *skb,
+	struct ieee80211_tx_control *control)
+{
+	struct usb_device *usb_dev =
+		interface_to_usbdev(rt2x00dev_usb(rt2x00dev));
+	struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr*)skb->data;
+	struct data_entry *entry = rt2x00_get_data_entry(ring);
+	struct data_desc *txd;
+	u32 length = skb->len;
+
+	if (rt2x00_ring_full(ring)) {
+		ieee80211_stop_queue(rt2x00dev->hw, control->queue);
+		return -EINVAL;
+	}
+
+	if (test_bit(ENTRY_OWNER_NIC, &entry->flags)) {
+		ERROR(rt2x00dev,
+			"Arrived at non-free entry in the non-full queue %d.\n"
+			"Please file bug report to %s.\n",
+			control->queue, DRV_PROJECT);
+		ieee80211_stop_queue( rt2x00dev->hw, control->queue);
+		return -EINVAL;
+	}
+
+	skb_push(skb, rt2x00dev->hw->extra_tx_headroom);
+	txd = (struct data_desc*)skb->data;
+	rt2x00lib_write_tx_desc(rt2x00dev, entry, txd, ieee80211hdr,
+		length, control);
+	memcpy(&entry->tx_status.control, control, sizeof(*control));
+	entry->skb = skb;
+
+	/*
+	 * Length passed to usb_fill_urb cannot be an odd number,
+	 * so add 1 byte to make it even.
+	 */
+	length += rt2x00dev->hw->extra_tx_headroom;
+	if (length % 2)
+		length++;
+
+	__set_bit(ENTRY_OWNER_NIC, &entry->flags);
+	usb_fill_bulk_urb(
+		entry->priv,
+		usb_dev,
+		usb_sndbulkpipe(usb_dev, 1),
+		skb->data,
+		length,
+		rt2x00usb_interrupt_txdone,
+		entry);
+	usb_submit_urb(entry->priv, GFP_ATOMIC);
+
+	rt2x00_ring_index_inc(ring);
+
+	if (rt2x00_ring_full(ring))
+		ieee80211_stop_queue(rt2x00dev->hw, control->queue);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_write_tx_data);
+
+/*
+ * Device initialization handlers.
+ */
+static int rt2x00usb_alloc_ring(struct rt2x00_dev *rt2x00dev,
+	struct data_ring *ring)
+{
+	unsigned int i;
+
+	/*
+	 * Allocate the URB's
+	 */
+	for (i = 0; i < ring->stats.limit; i++) {
+		ring->entry[i].priv = usb_alloc_urb(0, GFP_KERNEL);
+		if (!ring->entry[i].priv)
+			return -ENOMEM;
+	}
+
+	return 0;
+}
+
+int rt2x00usb_initialize(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_ring *ring;
+	struct sk_buff *skb;
+	unsigned int entry_size;
+	unsigned int i;
+	int status;
+
+	/*
+	 * Allocate DMA
+	 */
+	ring_for_each(rt2x00dev, ring) {
+		status = rt2x00usb_alloc_ring(rt2x00dev, ring);
+		if (status)
+			goto exit;
+	}
+
+	/*
+	 * For the RX ring, skb's should be allocated.
+	 */
+	entry_size = ring->data_size + ring->desc_size;
+	for (i = 0; i < rt2x00dev->rx->stats.limit; i++) {
+		skb = dev_alloc_skb(NET_IP_ALIGN + entry_size);
+		if (!skb)
+			goto exit;
+
+		skb_reserve(skb, NET_IP_ALIGN);
+		skb_put(skb, entry_size);
+
+		rt2x00dev->rx->entry[i].skb = skb;
+	}
+
+	return 0;
+
+exit:
+	rt2x00usb_uninitialize(rt2x00dev);
+
+	return status;
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_initialize);
+
+void rt2x00usb_uninitialize(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_ring *ring;
+	unsigned int i;
+
+	ring_for_each(rt2x00dev, ring) {
+		if (!ring->entry)
+			continue;
+
+		for (i = 0; i < ring->stats.limit; i++) {
+			usb_kill_urb(ring->entry[i].priv);
+			usb_free_urb(ring->entry[i].priv);
+			if (ring->entry[i].skb)
+				kfree_skb(ring->entry[i].skb);
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_uninitialize);
+
+/*
+ * USB driver handlers.
+ */
+int rt2x00usb_probe(struct usb_interface *usb_intf,
+	const struct usb_device_id *id)
+{
+	struct usb_device *usb_dev = interface_to_usbdev(usb_intf);
+	struct rt2x00_ops *ops = (struct rt2x00_ops*)id->driver_info;
+	struct ieee80211_hw *hw;
+	struct rt2x00_dev *rt2x00dev;
+	int retval;
+
+	usb_dev = usb_get_dev(usb_dev);
+
+	hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
+	if (!hw) {
+		ERROR_PROBE("Failed to allocate hardware.\n");
+		retval = -ENOMEM;
+		goto exit_put_device;
+	}
+
+	usb_set_intfdata(usb_intf, hw);
+
+	rt2x00dev = hw->priv;
+	rt2x00dev->dev = usb_intf;
+	rt2x00dev->device = &usb_intf->dev;
+	rt2x00dev->ops = ops;
+	rt2x00dev->hw = hw;
+
+	retval = rt2x00lib_probe_dev(rt2x00dev);
+	if (retval)
+		goto exit_free_device;
+
+	return 0;
+
+exit_free_device:
+	ieee80211_free_hw(hw);
+
+exit_put_device:
+	usb_put_dev(usb_dev);
+
+	usb_set_intfdata(usb_intf, NULL);
+
+	return retval;
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_probe);
+
+void rt2x00usb_disconnect(struct usb_interface *usb_intf)
+{
+	struct ieee80211_hw *hw = usb_get_intfdata(usb_intf);
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	/*
+	 * Free all allocated data.
+	 */
+	rt2x00lib_remove_dev(rt2x00dev);
+	ieee80211_free_hw(hw);
+
+	/*
+	 * Free the USB device data.
+	 */
+	usb_set_intfdata(usb_intf, NULL);
+	usb_put_dev(interface_to_usbdev(usb_intf));
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_disconnect);
+
+#ifdef CONFIG_PM
+int rt2x00usb_suspend(struct usb_interface *usb_intf, pm_message_t state)
+{
+	struct ieee80211_hw *hw = usb_get_intfdata(usb_intf);
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	int retval;
+
+	retval = rt2x00lib_suspend(rt2x00dev, state);
+	if (retval)
+		return retval;
+
+	/*
+	 * Decrease usbdev refcount.
+	 */
+	usb_put_dev(interface_to_usbdev(usb_intf));
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_suspend);
+
+int rt2x00usb_resume(struct usb_interface *usb_intf)
+{
+	struct ieee80211_hw *hw = usb_get_intfdata(usb_intf);
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	usb_get_dev(interface_to_usbdev(usb_intf));
+
+	return rt2x00lib_resume(rt2x00dev);
+}
+EXPORT_SYMBOL_GPL(rt2x00usb_resume);
+#endif /* CONFIG_PM */
+
+/*
+ * rt2x00pci module information.
+ */
+MODULE_AUTHOR(DRV_PROJECT);
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("rt2x00 library");
+MODULE_LICENSE("GPL");
diff --git a/package/rt2x00/src/rt2x00usb.h b/package/rt2x00/src/rt2x00usb.h
new file mode 100644
index 0000000..91627f2
--- /dev/null
+++ b/package/rt2x00/src/rt2x00usb.h
@@ -0,0 +1,132 @@
+/*
+	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: rt2x00usb
+	Abstract: Data structures for the rt2x00usb module.
+	Supported chipsets: rt2570, rt2571W & rt2671.
+ */
+
+#ifndef RT2X00USB_H
+#define RT2X00USB_H
+
+/*
+ * This variable should be used with the
+ * usb_driver structure initialization.
+ */
+#define USB_DEVICE_DATA(__ops)	.driver_info = (kernel_ulong_t)(__ops)
+
+/*
+ * Register defines.
+ * When register access attempts should be repeated
+ * only REGISTER_BUSY_COUNT attempts with a delay
+ * of REGISTER_BUSY_DELAY us should be taken.
+ * For USB vendor requests we need to pass a timeout
+ * time in ms, for this we use the REGISTER_TIMEOUT,
+ * however when loading firmware a higher value is
+ * required. For that we use the REGISTER_TIMEOUT_FIRMWARE.
+ */
+#define REGISTER_BUSY_COUNT		5
+#define REGISTER_BUSY_DELAY		100
+#define REGISTER_TIMEOUT		20
+#define REGISTER_TIMEOUT_FIRMWARE	1000
+
+/*
+ * USB request types.
+ */
+#define USB_VENDOR_REQUEST	( USB_TYPE_VENDOR | USB_RECIP_DEVICE )
+#define USB_VENDOR_REQUEST_IN	( USB_DIR_IN | USB_VENDOR_REQUEST )
+#define USB_VENDOR_REQUEST_OUT	( USB_DIR_OUT | USB_VENDOR_REQUEST )
+
+/*
+ * USB vendor commands.
+ */
+#define USB_DEVICE_MODE		0x01
+#define USB_SINGLE_WRITE	0x02
+#define USB_SINGLE_READ		0x03
+#define USB_MULTI_WRITE		0x06
+#define USB_MULTI_READ		0x07
+#define USB_EEPROM_WRITE	0x08
+#define USB_EEPROM_READ		0x09
+#define USB_LED_CONTROL		0x0a	/* RT73USB */
+#define USB_RX_CONTROL		0x0c
+
+/*
+ * Device modes offset
+ */
+#define USB_MODE_RESET		0x01
+#define USB_MODE_UNPLUG		0x02
+#define USB_MODE_FUNCTION	0x03
+#define USB_MODE_TEST		0x04
+#define USB_MODE_SLEEP		0x07	/* RT73USB */
+#define USB_MODE_FIRMWARE	0x08	/* RT73USB */
+#define USB_MODE_WAKEUP		0x09	/* RT73USB */
+
+/*
+ * USB devices need an additional Beacon (guardian beacon) to be generated.
+ */
+#undef BEACON_ENTRIES
+#define BEACON_ENTRIES 2
+
+/*
+ * Interfacing with the HW.
+ */
+int rt2x00usb_vendor_request(const struct rt2x00_dev *rt2x00dev,
+	const u8 request, const u8 type, const u16 offset,
+	u32 value, void *buffer, const u16 buffer_length, const u16 timeout);
+
+/*
+ * Radio handlers
+ */
+void rt2x00usb_enable_radio(struct rt2x00_dev *rt2x00dev);
+void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * Beacon handlers.
+ */
+int rt2x00usb_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
+	struct ieee80211_tx_control *control);
+void rt2x00usb_beacondone(struct urb *urb);
+
+/*
+ * TX data handlers.
+ */
+int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev,
+	struct data_ring *ring, struct sk_buff *skb,
+	struct ieee80211_tx_control *control);
+
+/*
+ * Device initialization handlers.
+ */
+int rt2x00usb_initialize(struct rt2x00_dev *rt2x00dev);
+void rt2x00usb_uninitialize(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * USB driver handlers.
+ */
+int rt2x00usb_probe(struct usb_interface *usb_intf,
+	const struct usb_device_id *id);
+void rt2x00usb_disconnect(struct usb_interface *usb_intf);
+#ifdef CONFIG_PM
+int rt2x00usb_suspend(struct usb_interface *usb_intf, pm_message_t state);
+int rt2x00usb_resume(struct usb_interface *usb_intf);
+#endif /* CONFIG_PM */
+
+#endif /* RT2X00USB_H */
diff --git a/package/rt2x00/src/rt61pci.c b/package/rt2x00/src/rt61pci.c
new file mode 100644
index 0000000..fe90dd2
--- /dev/null
+++ b/package/rt2x00/src/rt61pci.c
@@ -0,0 +1,2324 @@
+/*
+	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: rt61pci
+	Abstract: rt61pci device specific routines.
+	Supported chipsets: RT2561, RT2561s, RT2661.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt61pci"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/eeprom_93cx6.h>
+
+#include <asm/io.h>
+
+#include "rt2x00.h"
+#include "rt2x00pci.h"
+#include "rt61pci.h"
+
+/*
+ * Register access.
+ * BBP and RF register require indirect register access,
+ * and use the CSR registers PHY_CSR3 and PHY_CSR4 to achieve this.
+ * These indirect registers work with busy bits,
+ * and we will try maximal REGISTER_BUSY_COUNT times to access
+ * the register while taking a REGISTER_BUSY_DELAY us delay
+ * between each attampt. When the busy bit is still set at that time,
+ * the access attempt is considered to have failed,
+ * and we will print an error.
+ */
+static u32 rt61pci_bbp_check(const struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+	unsigned int i;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2x00pci_register_read(rt2x00dev, PHY_CSR3, &reg);
+		if (!rt2x00_get_field32(reg, PHY_CSR3_BUSY))
+			break;
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	return reg;
+}
+
+static void rt61pci_bbp_write(const struct rt2x00_dev *rt2x00dev,
+	const u8 reg_id, const u8 value)
+{
+	u32 reg;
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt61pci_bbp_check(rt2x00dev);
+	if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
+		ERROR(rt2x00dev, "PHY_CSR3 register busy. Write failed.\n");
+		return;
+	}
+
+	/*
+	 * Write the data into the BBP.
+	 */
+	reg = 0;
+	rt2x00_set_field32(&reg, PHY_CSR3_VALUE, value);
+	rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, reg_id);
+	rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
+	rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 0);
+
+	rt2x00pci_register_write(rt2x00dev, PHY_CSR3, reg);
+}
+
+static void rt61pci_bbp_read(const struct rt2x00_dev *rt2x00dev,
+	const u8 reg_id, u8 *value)
+{
+	u32 reg;
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt61pci_bbp_check(rt2x00dev);
+	if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
+		ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
+		return;
+	}
+
+	/*
+	 * Write the request into the BBP.
+	 */
+	reg =0;
+	rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, reg_id);
+	rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
+	rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 1);
+
+	rt2x00pci_register_write(rt2x00dev, PHY_CSR3, reg);
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt61pci_bbp_check(rt2x00dev);
+	if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
+		ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
+		*value = 0xff;
+		return;
+	}
+
+	*value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
+}
+
+static void rt61pci_rf_write(const struct rt2x00_dev *rt2x00dev,
+	const u32 value)
+{
+	u32 reg;
+	unsigned int i;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2x00pci_register_read(rt2x00dev, PHY_CSR4, &reg);
+		if (!rt2x00_get_field32(reg, PHY_CSR4_BUSY))
+			goto rf_write;
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	ERROR(rt2x00dev, "PHY_CSR4 register busy. Write failed.\n");
+	return;
+
+rf_write:
+	reg = 0;
+	rt2x00_set_field32(&reg, PHY_CSR4_VALUE, value);
+	rt2x00_set_field32(&reg, PHY_CSR4_NUMBER_OF_BITS, 21);
+	rt2x00_set_field32(&reg, PHY_CSR4_IF_SELECT, 0);
+	rt2x00_set_field32(&reg, PHY_CSR4_BUSY, 1);
+
+	rt2x00pci_register_write(rt2x00dev, PHY_CSR4, reg);
+}
+
+static void rt61pci_mcu_request(const struct rt2x00_dev *rt2x00dev,
+	const u8 command, const u8 token, const u8 arg0, const u8 arg1)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, H2M_MAILBOX_CSR, &reg);
+
+	if (rt2x00_get_field32(reg, H2M_MAILBOX_CSR_OWNER)) {
+		ERROR(rt2x00dev, "mcu request error. "
+			"Request 0x%02x failed for token 0x%02x.\n",
+			command, token);
+		return;
+	}
+
+	rt2x00_set_field32(&reg, H2M_MAILBOX_CSR_OWNER, 1);
+	rt2x00_set_field32(&reg, H2M_MAILBOX_CSR_CMD_TOKEN, token);
+	rt2x00_set_field32(&reg, H2M_MAILBOX_CSR_ARG0, arg0);
+	rt2x00_set_field32(&reg, H2M_MAILBOX_CSR_ARG1, arg1);
+	rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CSR, reg);
+
+	rt2x00pci_register_read(rt2x00dev, HOST_CMD_CSR, &reg);
+	rt2x00_set_field32(&reg, HOST_CMD_CSR_HOST_COMMAND, command);
+	rt2x00_set_field32(&reg, HOST_CMD_CSR_INTERRUPT_MCU, 1);
+	rt2x00pci_register_write(rt2x00dev, HOST_CMD_CSR, reg);
+}
+
+static void rt61pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
+{
+	struct rt2x00_dev *rt2x00dev = eeprom->data;
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, E2PROM_CSR, &reg);
+
+	eeprom->reg_data_in = !!rt2x00_get_field32(reg,
+		E2PROM_CSR_DATA_IN);
+	eeprom->reg_data_out = !!rt2x00_get_field32(reg,
+		E2PROM_CSR_DATA_OUT);
+	eeprom->reg_data_clock = !!rt2x00_get_field32(reg,
+		E2PROM_CSR_DATA_CLOCK);
+	eeprom->reg_chip_select = !!rt2x00_get_field32(reg,
+		E2PROM_CSR_CHIP_SELECT);
+}
+
+static void rt61pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
+{
+	struct rt2x00_dev *rt2x00dev = eeprom->data;
+	u32 reg = 0;
+
+	rt2x00_set_field32(&reg, E2PROM_CSR_DATA_IN,
+		!!eeprom->reg_data_in);
+	rt2x00_set_field32(&reg, E2PROM_CSR_DATA_OUT,
+		!!eeprom->reg_data_out);
+	rt2x00_set_field32(&reg, E2PROM_CSR_DATA_CLOCK,
+		!!eeprom->reg_data_clock);
+	rt2x00_set_field32(&reg, E2PROM_CSR_CHIP_SELECT,
+		!!eeprom->reg_chip_select);
+
+	rt2x00pci_register_write(rt2x00dev, E2PROM_CSR, reg);
+}
+
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+#define CSR_OFFSET(__word)	( CSR_REG_BASE + ((__word) * sizeof(u32)) )
+
+static void rt61pci_read_csr(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00pci_register_read(rt2x00dev, CSR_OFFSET(word), data);
+}
+
+static void rt61pci_write_csr(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00pci_register_write(rt2x00dev, CSR_OFFSET(word), *((u32*)data));
+}
+
+static void rt61pci_read_eeprom(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00_eeprom_read(rt2x00dev, word, data);
+}
+
+static void rt61pci_write_eeprom(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00_eeprom_write(rt2x00dev, word, *((u16*)data));
+}
+
+static void rt61pci_read_bbp(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt61pci_bbp_read(rt2x00dev, word, data);
+}
+
+static void rt61pci_write_bbp(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt61pci_bbp_write(rt2x00dev, word, *((u8*)data));
+}
+
+static const struct rt2x00debug rt61pci_rt2x00debug = {
+	.owner 		= THIS_MODULE,
+	.reg_csr	= {
+		.read		= rt61pci_read_csr,
+		.write		= rt61pci_write_csr,
+		.word_size	= sizeof(u32),
+		.word_count	= CSR_REG_SIZE / sizeof(u32),
+	},
+	.reg_eeprom	= {
+		.read		= rt61pci_read_eeprom,
+		.write		= rt61pci_write_eeprom,
+		.word_size	= sizeof(u16),
+		.word_count	= EEPROM_SIZE / sizeof(u16),
+	},
+	.reg_bbp	= {
+		.read		= rt61pci_read_bbp,
+		.write		= rt61pci_write_bbp,
+		.word_size	= sizeof(u8),
+		.word_count	= BBP_SIZE / sizeof(u8),
+	},
+};
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+
+#ifdef CONFIG_RT61PCI_RFKILL
+static int rt61pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, MAC_CSR13, &reg);
+	return rt2x00_get_field32(reg, MAC_CSR13_BIT5);;
+}
+#endif /* CONFIG_RT2400PCI_RFKILL */
+
+/*
+ * Configuration handlers.
+ */
+static void rt61pci_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
+{
+	u32 reg[2];
+
+	memset(&reg, 0, sizeof(reg));
+	memcpy(&reg, bssid, ETH_ALEN);
+
+	rt2x00_set_field32(&reg[1], MAC_CSR5_BSS_ID_MASK, 3);
+
+	/*
+	 * The BSSID is passed to us as an array of bytes,
+	 * that array is little endian, so no need for byte ordering.
+	 */
+	rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR4, &reg, sizeof(reg));
+}
+
+static void rt61pci_config_promisc(struct rt2x00_dev *rt2x00dev,
+	const int promisc)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME, !promisc);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
+}
+
+static void rt61pci_config_type(struct rt2x00_dev *rt2x00dev,
+	const int type)
+{
+	u32 reg;
+
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, 0);
+
+	/*
+	 * Apply hardware packet filter.
+	 */
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
+
+	if (!is_monitor_present(&rt2x00dev->interface) &&
+	    (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_STA))
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS, 1);
+	else
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS, 0);
+
+	rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC, 1);
+	if (is_monitor_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 0);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 0);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 0);
+	} else {
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 1);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 1);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
+	}
+
+	rt2x00_set_field32(&reg, TXRX_CSR0_DROP_MULTICAST, 0);
+	rt2x00_set_field32(&reg, TXRX_CSR0_DROP_BORADCAST, 0);
+
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
+
+	/*
+	 * Enable synchronisation.
+	 */
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
+	if (is_interface_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
+		rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
+	}
+
+	rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
+	if (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_AP)
+		rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 2);
+	else if (type == IEEE80211_IF_TYPE_STA)
+		rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 1);
+	else if (is_monitor_present(&rt2x00dev->interface) &&
+		 !is_interface_present(&rt2x00dev->interface))
+		rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 0);
+
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
+}
+
+static void rt61pci_config_channel(struct rt2x00_dev *rt2x00dev,
+	const int value, const int channel, const int txpower)
+{
+	u8 reg = 0;
+	u32 rf1 = 0;
+	u32 rf2 = value;
+	u32 rf3 = 0;
+	u32 rf4 = 0;
+
+	if (!test_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags) || channel <= 14)
+		rf1 = 0x00002ccc;
+	else if (channel == 36 ||
+		(channel >= 100 && channel <= 116) ||
+		channel >= 157)
+		rf1 = 0x00002cd4;
+	else
+		rf1 = 0x00002cd0;
+
+	if (channel <= 14) {
+		rf3 = 0x00068455;
+	} else if (!test_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags)) {
+		if (channel >= 36 && channel <= 48)
+			rf3 = 0x0009be55;
+		else if (channel >= 52 && channel <= 64)
+			rf3 = 0x0009ae55;
+		else if (channel >= 100 && channel <= 112)
+			rf3 = 0x000bae55;
+		else
+			rf3 = 0x000bbe55;
+	} else {
+		switch (channel) {
+			case 36:
+			case 40:
+			case 44:
+				rf3 = 0x00098455;
+				break;
+			case 48:
+				rf3 = 0x00098655;
+				break;
+			case 52:
+				rf3 = 0x00098855;
+				break;
+			case 56:
+				rf3 = 0x00098c55;
+
+			case 60:
+				rf3 = 0x00098e55;
+				break;
+			case 64:
+				rf3 = 0x00099255;
+				break;
+			case 100:
+			case 104:
+			case 108:
+				rf3 = 0x000b9855;
+				break;
+			case 112:
+			case 116:
+			case 120:
+			case 124:
+				rf3 = 0x000b9a55;
+				break;
+			case 128:
+			case 132:
+				rf3 = 0x000b9c55;
+				break;
+			case 136:
+			case 140:
+				rf3 = 0x000b9e55;
+				break;
+			case 149:
+			case 153:
+			case 157:
+			case 161:
+			case 165:
+				rf3 = 0x000ba255;
+				break;
+		}
+	}
+
+	if (channel < 14) {
+		if (channel & 1)
+			rf4 = 0x000ffa0b;
+		else
+			rf4 = 0x000ffa1f;
+	} else if (channel == 14) {
+		rf4 = 0x000ffa13;
+	} else if (!test_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags)) {
+		switch (channel) {
+			case 36:
+			case 56:
+			case 116:
+			case 136:
+				rf4 = 0x000ffa23;
+				break;
+			case 40:
+			case 60:
+			case 100:
+			case 120:
+			case 140:
+				rf4 = 0x000ffa03;
+				break;
+			case 44:
+			case 64:
+			case 104:
+			case 124:
+				rf4 = 0x000ffa0b;
+				break;
+			case 48:
+			case 108:
+			case 128:
+				rf4 = 0x000ffa13;
+				break;
+			case 52:
+			case 112:
+			case 132:
+				rf4 = 0x000ffa1b;
+				break;
+			case 149:
+				rf4 = 0x000ffa1f;
+				break;
+			case 153:
+				rf4 = 0x000ffa27;
+				break;
+			case 157:
+				rf4 = 0x000ffa07;
+				break;
+			case 161:
+				rf4 = 0x000ffa0f;
+				break;
+			case 165:
+				rf4 = 0x000ffa17;
+				break;
+		}
+	} else {
+		switch (channel) {
+			case 36:
+			case 40:
+			case 60:
+			case 140:
+			case 100:
+			case 104:
+			case 108:
+			case 112:
+			case 116:
+			case 120:
+				rf4 = 0x000c0a03;
+				break;
+			case 44:
+			case 64:
+			case 124:
+			case 149:
+				rf4 = 0x000c0a1b;
+				break;
+			case 48:
+			case 128:
+			case 153:
+				rf4 = 0x000c0a0b;
+				break;
+			case 52:
+			case 132:
+				rf4 = 0x000c0a23;
+				break;
+			case 56:
+			case 136:
+				rf4 = 0x000c0a13;
+				break;
+			case 157:
+			case 161:
+			case 165:
+				rf4 = 0x000c0a17;
+				break;
+		}
+	}
+
+	/*
+	 * Set TXpower.
+	 */
+	rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
+
+	/*
+	 * Set Frequency offset.
+	 */
+	rt2x00_set_field32(&rf4, RF4_FREQ_OFFSET, rt2x00dev->freq_offset);
+
+	rt61pci_rf_write(rt2x00dev, rf1);
+	rt61pci_rf_write(rt2x00dev, rf2);
+	rt61pci_rf_write(rt2x00dev, rf3 & ~0x00000004);
+	rt61pci_rf_write(rt2x00dev, rf4);
+
+	udelay(200);
+
+	rt61pci_rf_write(rt2x00dev, rf1);
+	rt61pci_rf_write(rt2x00dev, rf2);
+	rt61pci_rf_write(rt2x00dev, rf3 | 0x00000004);
+	rt61pci_rf_write(rt2x00dev, rf4);
+
+	udelay(200);
+
+	rt61pci_rf_write(rt2x00dev, rf1);
+	rt61pci_rf_write(rt2x00dev, rf2);
+	rt61pci_rf_write(rt2x00dev, rf3 & ~0x00000004);
+	rt61pci_rf_write(rt2x00dev, rf4);
+
+	rt61pci_bbp_read(rt2x00dev, 3, &reg);
+	if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF2527))
+		reg &= ~0x01;
+	else
+		reg |= 0x01;
+	rt61pci_bbp_write(rt2x00dev, 3, reg);
+
+	msleep(1);
+
+	/*
+	 * Update rf fields
+	 */
+	rt2x00dev->rf1 = rf1;
+	rt2x00dev->rf2 = rf2;
+	rt2x00dev->rf3 = rf3;
+	rt2x00dev->rf4 = rf4;
+	rt2x00dev->tx_power = txpower;
+}
+
+static void rt61pci_config_txpower(struct rt2x00_dev *rt2x00dev,
+	const int txpower)
+{
+	rt2x00_set_field32(&rt2x00dev->rf3, RF3_TXPOWER,
+		TXPOWER_TO_DEV(txpower));
+
+	rt61pci_rf_write(rt2x00dev, rt2x00dev->rf1);
+	rt61pci_rf_write(rt2x00dev, rt2x00dev->rf2);
+	rt61pci_rf_write(rt2x00dev, rt2x00dev->rf3 & ~0x00000004);
+	rt61pci_rf_write(rt2x00dev, rt2x00dev->rf4);
+
+	udelay(200);
+
+	rt61pci_rf_write(rt2x00dev, rt2x00dev->rf1);
+	rt61pci_rf_write(rt2x00dev, rt2x00dev->rf2);
+	rt61pci_rf_write(rt2x00dev, rt2x00dev->rf3 | 0x00000004);
+	rt61pci_rf_write(rt2x00dev, rt2x00dev->rf4);
+
+	udelay(200);
+
+	rt61pci_rf_write(rt2x00dev, rt2x00dev->rf1);
+	rt61pci_rf_write(rt2x00dev, rt2x00dev->rf2);
+	rt61pci_rf_write(rt2x00dev, rt2x00dev->rf3 & ~0x00000004);
+	rt61pci_rf_write(rt2x00dev, rt2x00dev->rf4);
+}
+
+static void rt61pci_config_antenna(struct rt2x00_dev *rt2x00dev,
+	const int antenna_tx, const int antenna_rx)
+{
+	u32 reg;
+	u8 r3;
+	u8 r4;
+	u8 r77;
+
+	rt2x00pci_register_read(rt2x00dev, PHY_CSR0, &reg);
+
+	if (rt2x00dev->curr_hwmode == HWMODE_A) {
+		if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) {
+			rt61pci_bbp_write(rt2x00dev, 17, 0x38);
+			rt61pci_bbp_write(rt2x00dev, 96, 0x78);
+			rt61pci_bbp_write(rt2x00dev, 104, 0x48);
+			rt61pci_bbp_write(rt2x00dev, 75, 0x80);
+			rt61pci_bbp_write(rt2x00dev, 86, 0x80);
+			rt61pci_bbp_write(rt2x00dev, 88, 0x80);
+		} else {
+			rt61pci_bbp_write(rt2x00dev, 17, 0x28);
+			rt61pci_bbp_write(rt2x00dev, 96, 0x58);
+			rt61pci_bbp_write(rt2x00dev, 104, 0x38);
+			rt61pci_bbp_write(rt2x00dev, 75, 0xfe);
+			rt61pci_bbp_write(rt2x00dev, 86, 0xfe);
+			rt61pci_bbp_write(rt2x00dev, 88, 0xfe);
+		}
+		rt61pci_bbp_write(rt2x00dev, 35, 0x60);
+		rt61pci_bbp_write(rt2x00dev, 97, 0x58);
+		rt61pci_bbp_write(rt2x00dev, 98, 0x58);
+
+		rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG, 0);
+		rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A, 1);
+	} else {
+		if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags)) {
+			rt61pci_bbp_write(rt2x00dev, 17, 0x30);
+			rt61pci_bbp_write(rt2x00dev, 96, 0x68);
+			rt61pci_bbp_write(rt2x00dev, 104, 0x3c);
+			rt61pci_bbp_write(rt2x00dev, 75, 0x80);
+			rt61pci_bbp_write(rt2x00dev, 86, 0x80);
+			rt61pci_bbp_write(rt2x00dev, 88, 0x80);
+		} else {
+			rt61pci_bbp_write(rt2x00dev, 17, 0x20);
+			rt61pci_bbp_write(rt2x00dev, 96, 0x48);
+			rt61pci_bbp_write(rt2x00dev, 104, 0x2c);
+			rt61pci_bbp_write(rt2x00dev, 75, 0xfe);
+			rt61pci_bbp_write(rt2x00dev, 86, 0xfe);
+			rt61pci_bbp_write(rt2x00dev, 88, 0xfe);
+		}
+		rt61pci_bbp_write(rt2x00dev, 35, 0x50);
+		rt61pci_bbp_write(rt2x00dev, 97, 0x48);
+		rt61pci_bbp_write(rt2x00dev, 98, 0x48);
+
+		rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG, 1);
+		rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A, 0);
+	}
+
+	rt2x00pci_register_write(rt2x00dev, PHY_CSR0, reg);
+
+	rt61pci_bbp_read(rt2x00dev, 3, &r3);
+	rt61pci_bbp_read(rt2x00dev, 4, &r4);
+	rt61pci_bbp_read(rt2x00dev, 77, &r77);
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF2527))
+		rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF5325)) {
+		if (antenna_rx == ANTENNA_DIVERSITY) {
+			rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
+			if (rt2x00dev->curr_hwmode != HWMODE_A)
+				rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1);
+		} else if (antenna_rx == ANTENNA_A) {
+			rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
+			if (rt2x00dev->curr_hwmode == HWMODE_A)
+				rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
+			else
+				rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
+			rt61pci_bbp_write(rt2x00dev, 77, r77);
+		} else if (antenna_rx == ANTENNA_B) {
+			rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
+			if (rt2x00dev->curr_hwmode == HWMODE_A)
+				rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
+			else
+				rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
+			rt61pci_bbp_write(rt2x00dev, 77, r77);
+		}
+	} else if (rt2x00_rf(&rt2x00dev->chip, RF2527) ||
+		   (rt2x00_rf(&rt2x00dev->chip, RF2529) &&
+		    test_bit(CONFIG_DOUBLE_ANTENNA, &rt2x00dev->flags))) {
+		if (antenna_rx == ANTENNA_DIVERSITY) {
+			rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
+			rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
+				test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
+		} else if (antenna_rx == ANTENNA_A) {
+			rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
+				test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
+			rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
+			rt61pci_bbp_write(rt2x00dev, 77, r77);
+		} else if (antenna_rx == ANTENNA_B) {
+			rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
+				test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
+			rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
+			rt61pci_bbp_write(rt2x00dev, 77, r77);
+		}
+	}
+
+	/*
+	 * TODO: RF2529 with another antenna value then 2 are ignored.
+	 * The legacy driver is unclear whether in those cases there is
+	 * a possibility to switch antenna.
+	 */
+
+	rt61pci_bbp_write(rt2x00dev, 3, r3);
+	rt61pci_bbp_write(rt2x00dev, 4, r4);
+}
+
+static void rt61pci_config_duration(struct rt2x00_dev *rt2x00dev,
+	const int short_slot_time, const int beacon_int)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, MAC_CSR9, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR9_SLOT_TIME,
+		short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME);
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR9, reg);
+
+	rt2x00pci_register_read(rt2x00dev, MAC_CSR8, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR8_SIFS, SIFS);
+	rt2x00_set_field32(&reg, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
+	rt2x00_set_field32(&reg, MAC_CSR8_EIFS, EIFS);
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR8, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR0_TSF_OFFSET, IEEE80211_HEADER);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_ENABLE, 1);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_INTERVAL, beacon_int * 16);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
+}
+
+static void rt61pci_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
+{
+	struct ieee80211_conf *conf = &rt2x00dev->hw->conf;
+	u32 reg;
+	u32 value;
+	u32 preamble;
+
+	preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE)
+		? SHORT_PREAMBLE : PREAMBLE;
+
+	/*
+	 * Extract the allowed ratemask from the device specific rate value,
+	 * We need to set TXRX_CSR5 to the basic rate mask so we need to mask
+	 * off the non-basic rates.
+	 */
+	reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE;
+
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR5, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
+	value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
+		 SHORT_DIFS :  DIFS) +
+		PLCP + preamble + get_duration(ACK_SIZE, 10);
+	rt2x00_set_field32(&reg, TXRX_CSR0_RX_ACK_TIMEOUT, value);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, &reg);
+	if (preamble == SHORT_PREAMBLE)
+		rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE, 1);
+	else
+		rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE, 0);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg);
+}
+
+static void rt61pci_config_phymode(struct rt2x00_dev *rt2x00dev,
+	const int phymode)
+{
+	struct ieee80211_hw_mode *mode;
+	struct ieee80211_rate *rate;
+
+	if (phymode == MODE_IEEE80211A)
+		rt2x00dev->curr_hwmode = HWMODE_A;
+	else if (phymode == MODE_IEEE80211B)
+		rt2x00dev->curr_hwmode = HWMODE_B;
+	else
+		rt2x00dev->curr_hwmode = HWMODE_G;
+
+	mode = &rt2x00dev->hwmodes[rt2x00dev->curr_hwmode];
+	rate = &mode->rates[mode->num_rates - 1];
+
+	rt61pci_config_rate(rt2x00dev, rate->val2);
+}
+
+static void rt61pci_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr)
+{
+	u32 reg[2];
+
+	memset(&reg, 0, sizeof(reg));
+	memcpy(&reg, addr, ETH_ALEN);
+
+	rt2x00_set_field32(&reg[1], MAC_CSR3_UNICAST_TO_ME_MASK, 0xff);
+
+	/*
+	 * The MAC address is passed to us as an array of bytes,
+	 * that array is little endian, so no need for byte ordering.
+	 */
+	rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR2, &reg, sizeof(reg));
+}
+
+/*
+ * LED functions.
+ */
+static void rt61pci_enable_led(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+	u16 led_reg;
+	u8 arg0;
+	u8 arg1;
+
+	rt2x00pci_register_read(rt2x00dev, MAC_CSR14, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR14_ON_PERIOD, 70);
+	rt2x00_set_field32(&reg, MAC_CSR14_OFF_PERIOD, 30);
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR14, reg);
+
+	led_reg = rt2x00dev->led_reg;
+	rt2x00_set_field16(&led_reg, MCU_LEDCS_RADIO_STATUS, 1);
+	if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A)
+		rt2x00_set_field16(&led_reg, MCU_LEDCS_LINK_A_STATUS, 1);
+	else
+		rt2x00_set_field16(&led_reg, MCU_LEDCS_LINK_BG_STATUS, 1);
+
+	arg0 = led_reg & 0xff;
+	arg1 = (led_reg >> 8) & 0xff;
+
+	rt61pci_mcu_request(rt2x00dev, MCU_LED, 0xff, arg0, arg1);
+}
+
+static void rt61pci_disable_led(struct rt2x00_dev *rt2x00dev)
+{
+	u16 led_reg;
+	u8 arg0;
+	u8 arg1;
+
+	led_reg = rt2x00dev->led_reg;
+	rt2x00_set_field16(&led_reg, MCU_LEDCS_RADIO_STATUS, 0);
+	rt2x00_set_field16(&led_reg, MCU_LEDCS_LINK_BG_STATUS, 0);
+	rt2x00_set_field16(&led_reg, MCU_LEDCS_LINK_A_STATUS, 0);
+
+	arg0 = led_reg & 0xff;
+	arg1 = (led_reg >> 8) & 0xff;
+
+	rt61pci_mcu_request(rt2x00dev, MCU_LED, 0xff, arg0, arg1);
+}
+
+static void rt61pci_activity_led(struct rt2x00_dev *rt2x00dev, char rssi)
+{
+	u8 led;
+
+	if (rt2x00dev->led_mode != LED_MODE_SIGNAL_STRENGTH)
+		return;
+
+	if (rssi <= 30)
+		led = 0;
+	else if (rssi <= 39)
+		led = 1;
+	else if (rssi <= 49)
+		led = 2;
+	else if (rssi <= 53)
+		led = 3;
+	else if (rssi <= 63)
+		led = 4;
+	else
+		led = 5;
+
+	rt61pci_mcu_request(rt2x00dev, MCU_LED_STRENGTH, 0xff, led, 0);
+}
+
+/*
+ * Link tuning
+ */
+static void rt61pci_link_tuner(struct rt2x00_dev *rt2x00dev, int rssi)
+{
+	u32 reg;
+	u8 r17;
+	u8 up_bound;
+	u8 low_bound;
+
+	/*
+	 * Update Led strength
+	 */
+	rt61pci_activity_led(rt2x00dev, rssi);
+
+	rt61pci_bbp_read(rt2x00dev, 17, &r17);
+
+	/*
+	 * Determine r17 bounds.
+	 */
+	if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A) {
+		low_bound = 0x28;
+		up_bound = 0x48;
+		if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) {
+			low_bound += 0x10;
+			up_bound += 0x10;
+		}
+	} else {
+		low_bound = 0x20;
+		up_bound = 0x40;
+		if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags)) {
+			low_bound += 0x10;
+			up_bound += 0x10;
+		}
+	}
+
+	/*
+	 * Special big-R17 for very short distance
+	 */
+	if (rssi >= -35) {
+		if (r17 != 0x60)
+			rt61pci_bbp_write(rt2x00dev, 17, 0x60);
+		return;
+	}
+
+	/*
+	 * Special big-R17 for short distance
+	 */
+	if (rssi >= -58) {
+		if (r17 != up_bound)
+			rt61pci_bbp_write(rt2x00dev, 17, up_bound);
+		return;
+	}
+
+	/*
+	 * Special big-R17 for middle-short distance
+	 */
+	if (rssi >= -66) {
+		low_bound += 0x10;
+		if (r17 != low_bound)
+			rt61pci_bbp_write(rt2x00dev, 17, low_bound);
+		return;
+	}
+
+	/*
+	 * Special mid-R17 for middle distance
+	 */
+	if (rssi >= -74) {
+		low_bound += 0x08;
+		if (r17 != low_bound)
+			rt61pci_bbp_write(rt2x00dev, 17, low_bound);
+		return;
+	}
+
+	/*
+	 * Special case: Change up_bound based on the rssi.
+	 * Lower up_bound when rssi is weaker then -74 dBm.
+	 */
+	up_bound -= 2 * (-74 - rssi);
+	if (low_bound > up_bound)
+		up_bound = low_bound;
+
+	if (r17 > up_bound) {
+		rt61pci_bbp_write(rt2x00dev, 17, up_bound);
+		return;
+	}
+
+	/*
+	 * r17 does not yet exceed upper limit, continue and base
+	 * the r17 tuning on the false CCA count.
+	 */
+	rt2x00pci_register_read(rt2x00dev, STA_CSR1, &reg);
+	rt2x00dev->link.false_cca =
+		rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
+
+	if (rt2x00dev->link.false_cca > 512 && r17 < up_bound) {
+		if (++r17 > up_bound)
+			r17 = up_bound;
+		rt61pci_bbp_write(rt2x00dev, 17, r17);
+	} else if (rt2x00dev->link.false_cca < 100 && r17 > low_bound) {
+		if (--r17 < low_bound)
+			r17 = low_bound;
+		rt61pci_bbp_write(rt2x00dev, 17, r17);
+	}
+}
+
+/*
+ * Firmware name function.
+ */
+static char *rt61pci_get_fw_name(struct rt2x00_dev *rt2x00dev)
+{
+	char *fw_name;
+
+	switch (rt2x00dev->chip.rt) {
+	case RT2561:
+		fw_name = FIRMWARE_RT2561;
+		break;
+	case RT2561s:
+		fw_name = FIRMWARE_RT2561s;
+		break;
+	case RT2661:
+		fw_name = FIRMWARE_RT2661;
+		break;
+	default:
+		fw_name = NULL;
+		break;
+	}
+
+	return fw_name;
+}
+
+/*
+ * Initialization functions.
+ */
+static int rt61pci_load_firmware(struct rt2x00_dev *rt2x00dev, void *data,
+	const size_t len)
+{
+	int i;
+	u32 reg;
+
+	/*
+	 * Wait for stable hardware.
+	 */
+	for (i = 0; i < 100; i++) {
+		rt2x00pci_register_read(rt2x00dev, MAC_CSR0, &reg);
+		if (reg)
+			break;
+		msleep(1);
+	}
+
+	if (!reg) {
+		ERROR(rt2x00dev, "Unstable hardware.\n");
+		return -EBUSY;
+	}
+
+	/*
+	 * Prepare MCU and mailbox for firmware loading.
+	 */
+	reg = 0;
+	rt2x00_set_field32(&reg, MCU_CNTL_CSR_RESET, 1);
+	rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
+	rt2x00pci_register_write(rt2x00dev, M2H_CMD_DONE_CSR, 0xffffffff);
+	rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
+	rt2x00pci_register_write(rt2x00dev, HOST_CMD_CSR, 0);
+
+	/*
+	 * Write firmware to device.
+	 */
+	reg = 0;
+	rt2x00_set_field32(&reg, MCU_CNTL_CSR_RESET, 1);
+	rt2x00_set_field32(&reg, MCU_CNTL_CSR_SELECT_BANK, 1);
+	rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
+
+	rt2x00pci_register_multiwrite(
+		rt2x00dev, FIRMWARE_IMAGE_BASE, data, len);
+
+	rt2x00_set_field32(&reg, MCU_CNTL_CSR_SELECT_BANK, 0);
+	rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
+
+	rt2x00_set_field32(&reg, MCU_CNTL_CSR_RESET, 0);
+	rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
+
+	for (i = 0; i < 100; i++) {
+		rt2x00pci_register_read(rt2x00dev, MCU_CNTL_CSR, &reg);
+		if (rt2x00_get_field32(reg, MCU_CNTL_CSR_READY))
+			break;
+		msleep(1);
+	}
+
+	if (i == 100) {
+		ERROR(rt2x00dev, "MCU Control register not ready.\n");
+		return -EBUSY;
+	}
+
+	/*
+	 * Reset MAC and BBP registers.
+	 */
+	reg = 0;
+	rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 1);
+	rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 1);
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 0);
+	rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 0);
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR1_HOST_READY, 1);
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
+
+	return 0;
+}
+
+static void rt61pci_init_rxring(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_desc *rxd;
+	unsigned int i;
+	u32 word;
+
+	memset(rt2x00dev->rx->data_addr, 0x00,
+		rt2x00_get_ring_size(rt2x00dev->rx));
+
+	for (i = 0; i < rt2x00dev->rx->stats.limit; i++) {
+		rxd = rt2x00dev->rx->entry[i].priv;
+
+		rt2x00_desc_read(rxd, 5, &word);
+		rt2x00_set_field32(&word, RXD_W5_BUFFER_PHYSICAL_ADDRESS,
+			rt2x00dev->rx->entry[i].data_dma);
+		rt2x00_desc_write(rxd, 5, word);
+
+		rt2x00_desc_read(rxd, 0, &word);
+		rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
+		rt2x00_desc_write(rxd, 0, word);
+	}
+
+	rt2x00_ring_index_clear(rt2x00dev->rx);
+}
+
+static void rt61pci_init_txring(struct rt2x00_dev *rt2x00dev,
+	const int queue)
+{
+	struct data_ring *ring = rt2x00_get_ring(rt2x00dev, queue);
+	struct data_desc *txd;
+	unsigned int i;
+	u32 word;
+
+	memset(ring->data_addr, 0x00, rt2x00_get_ring_size(ring));
+
+	for (i = 0; i < ring->stats.limit; i++) {
+		txd = ring->entry[i].priv;
+
+		rt2x00_desc_read(txd, 1, &word);
+		rt2x00_set_field32(&word, TXD_W1_BUFFER_COUNT, 1);
+		rt2x00_desc_write(txd, 1, word);
+
+		rt2x00_desc_read(txd, 5, &word);
+		rt2x00_set_field32(&word, TXD_W5_PID_TYPE, queue);
+		rt2x00_set_field32(&word, TXD_W5_PID_SUBTYPE, i);
+		rt2x00_desc_write(txd, 5, word);
+
+		rt2x00_desc_read(txd, 6, &word);
+		rt2x00_set_field32(&word, TXD_W6_BUFFER_PHYSICAL_ADDRESS,
+			ring->entry[i].data_dma);
+		rt2x00_desc_write(txd, 6, word);
+
+		rt2x00_desc_read(txd, 0, &word);
+		rt2x00_set_field32(&word, TXD_W0_VALID, 0);
+		rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
+		rt2x00_desc_write(txd, 0, word);
+	}
+
+	rt2x00_ring_index_clear(ring);
+}
+
+static int rt61pci_init_rings(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	/*
+	 * Initialize rings.
+	 */
+	rt61pci_init_rxring(rt2x00dev);
+	rt61pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA0);
+	rt61pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA1);
+	rt61pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA2);
+	rt61pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA3);
+	rt61pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA4);
+	rt61pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
+
+	/*
+	 * Initialize registers.
+	 */
+	rt2x00pci_register_read(rt2x00dev, TX_RING_CSR0, &reg);
+	rt2x00_set_field32(&reg, TX_RING_CSR0_AC0_RING_SIZE,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].stats.limit);
+	rt2x00_set_field32(&reg, TX_RING_CSR0_AC1_RING_SIZE,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].stats.limit);
+	rt2x00_set_field32(&reg, TX_RING_CSR0_AC2_RING_SIZE,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA2].stats.limit);
+	rt2x00_set_field32(&reg, TX_RING_CSR0_AC3_RING_SIZE,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA3].stats.limit);
+	rt2x00pci_register_write(rt2x00dev, TX_RING_CSR0, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TX_RING_CSR1, &reg);
+	rt2x00_set_field32(&reg, TX_RING_CSR1_MGMT_RING_SIZE,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA4].stats.limit);
+	rt2x00_set_field32(&reg, TX_RING_CSR1_TXD_SIZE,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].desc_size / 4);
+	rt2x00pci_register_write(rt2x00dev, TX_RING_CSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, AC0_BASE_CSR, &reg);
+	rt2x00_set_field32(&reg, AC0_BASE_CSR_RING_REGISTER,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].data_dma);
+	rt2x00pci_register_write(rt2x00dev, AC0_BASE_CSR, reg);
+
+	rt2x00pci_register_read(rt2x00dev, AC1_BASE_CSR, &reg);
+	rt2x00_set_field32(&reg, AC1_BASE_CSR_RING_REGISTER,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].data_dma);
+	rt2x00pci_register_write(rt2x00dev, AC1_BASE_CSR, reg);
+
+	rt2x00pci_register_read(rt2x00dev, AC2_BASE_CSR, &reg);
+	rt2x00_set_field32(&reg, AC2_BASE_CSR_RING_REGISTER,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA2].data_dma);
+	rt2x00pci_register_write(rt2x00dev, AC2_BASE_CSR, reg);
+
+	rt2x00pci_register_read(rt2x00dev, AC3_BASE_CSR, &reg);
+	rt2x00_set_field32(&reg, AC3_BASE_CSR_RING_REGISTER,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA3].data_dma);
+	rt2x00pci_register_write(rt2x00dev, AC3_BASE_CSR, reg);
+
+	rt2x00pci_register_read(rt2x00dev, MGMT_BASE_CSR, &reg);
+	rt2x00_set_field32(&reg, MGMT_BASE_CSR_RING_REGISTER,
+		rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA4].data_dma);
+	rt2x00pci_register_write(rt2x00dev, MGMT_BASE_CSR, reg);
+
+	rt2x00pci_register_read(rt2x00dev, RX_RING_CSR, &reg);
+	rt2x00_set_field32(&reg, RX_RING_CSR_RING_SIZE,
+		rt2x00dev->rx->stats.limit);
+	rt2x00_set_field32(&reg, RX_RING_CSR_RXD_SIZE,
+		rt2x00dev->rx->desc_size / 4);
+	rt2x00_set_field32(&reg, RX_RING_CSR_RXD_WRITEBACK_SIZE, 4);
+	rt2x00pci_register_write(rt2x00dev, RX_RING_CSR, reg);
+
+	rt2x00pci_register_read(rt2x00dev, RX_BASE_CSR, &reg);
+	rt2x00_set_field32(&reg, RX_BASE_CSR_RING_REGISTER,
+		rt2x00dev->rx->data_dma);
+	rt2x00pci_register_write(rt2x00dev, RX_BASE_CSR, reg);
+
+	rt2x00pci_register_write(rt2x00dev, TX_DMA_DST_CSR, 0x000000aa);
+	rt2x00pci_register_write(rt2x00dev, LOAD_TX_RING_CSR, 0x0000001f);
+	rt2x00pci_register_write(rt2x00dev, RX_CNTL_CSR, 0x00000002);
+
+	return 0;
+}
+
+static int rt61pci_init_registers(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
+		return -EBUSY;
+
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x00000718);
+
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, 0x025eb032);
+
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR1, 0x9eb39eb3);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR2, 0x8a8b8c8d);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR3, 0x00858687);
+
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR7, 0x2e31353b);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR8, 0x2a2a2a2c);
+
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR15, 0x0000000f);
+
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR6, 0x00000fff);
+
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR13, 0x0000e000);
+
+	rt2x00pci_register_write(rt2x00dev, SEC_CSR0, 0x00000000);
+	rt2x00pci_register_write(rt2x00dev, SEC_CSR1, 0x00000000);
+	rt2x00pci_register_write(rt2x00dev, SEC_CSR5, 0x00000000);
+
+	rt2x00pci_register_read(rt2x00dev, AC_TXOP_CSR0, &reg);
+	rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC0_TX_OP, 0);
+	rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC1_TX_OP, 0);
+	rt2x00pci_register_write(rt2x00dev, AC_TXOP_CSR0, reg);
+
+	rt2x00pci_register_read(rt2x00dev, AC_TXOP_CSR1, &reg);
+	rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC2_TX_OP, 192);
+	rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC3_TX_OP, 48);
+	rt2x00pci_register_write(rt2x00dev, AC_TXOP_CSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, MAC_CSR9, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR9_CW_SELECT, 0);
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR9, reg);
+
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR0_AUTO_TX_SEQ, 1);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
+
+	rt2x00pci_register_write(rt2x00dev, PHY_CSR1, 0x000023b0);
+	rt2x00pci_register_write(rt2x00dev, PHY_CSR5, 0x060a100c);
+	rt2x00pci_register_write(rt2x00dev, PHY_CSR6, 0x00080606);
+	rt2x00pci_register_write(rt2x00dev, PHY_CSR7, 0x00000a08);
+
+	rt2x00pci_register_write(rt2x00dev, PCI_CFG_CSR, 0x28ca4404);
+
+	rt2x00pci_register_write(rt2x00dev, TEST_MODE_CSR, 0x00000200);
+
+	rt2x00pci_register_write(rt2x00dev, M2H_CMD_DONE_CSR, 0xffffffff);
+
+	/*
+	 * We must clear the error counters.
+	 * These registers are cleared on read,
+	 * so we may pass a useless variable to store the value.
+	 */
+	rt2x00pci_register_read(rt2x00dev, STA_CSR0, &reg);
+	rt2x00pci_register_read(rt2x00dev, STA_CSR1, &reg);
+	rt2x00pci_register_read(rt2x00dev, STA_CSR2, &reg);
+
+	/*
+	 * Reset MAC and BBP registers.
+	 */
+	reg = 0;
+	rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 1);
+	rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 1);
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 0);
+	rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 0);
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
+
+	rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR1_HOST_READY, 1);
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
+
+	return 0;
+}
+
+static int rt61pci_init_bbp(struct rt2x00_dev *rt2x00dev)
+{
+	unsigned int i;
+	u16 eeprom;
+	u8 reg_id;
+	u8 value;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt61pci_bbp_read(rt2x00dev, 0, &value);
+		if ((value != 0xff) && (value != 0x00))
+			goto continue_csr_init;
+		NOTICE(rt2x00dev, "Waiting for BBP register.\n");
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
+	return -EACCES;
+
+continue_csr_init:
+	rt61pci_bbp_write(rt2x00dev, 3, 0x00);
+	rt61pci_bbp_write(rt2x00dev, 15, 0x30);
+	rt61pci_bbp_write(rt2x00dev, 17, 0x20);
+	rt61pci_bbp_write(rt2x00dev, 21, 0xc8);
+	rt61pci_bbp_write(rt2x00dev, 22, 0x38);
+	rt61pci_bbp_write(rt2x00dev, 23, 0x06);
+	rt61pci_bbp_write(rt2x00dev, 24, 0xfe);
+	rt61pci_bbp_write(rt2x00dev, 25, 0x0a);
+	rt61pci_bbp_write(rt2x00dev, 26, 0x0d);
+	rt61pci_bbp_write(rt2x00dev, 34, 0x12);
+	rt61pci_bbp_write(rt2x00dev, 37, 0x07);
+	rt61pci_bbp_write(rt2x00dev, 39, 0xf8);
+	rt61pci_bbp_write(rt2x00dev, 41, 0x60);
+	rt61pci_bbp_write(rt2x00dev, 53, 0x10);
+	rt61pci_bbp_write(rt2x00dev, 54, 0x18);
+	rt61pci_bbp_write(rt2x00dev, 60, 0x10);
+	rt61pci_bbp_write(rt2x00dev, 61, 0x04);
+	rt61pci_bbp_write(rt2x00dev, 62, 0x04);
+	rt61pci_bbp_write(rt2x00dev, 75, 0xfe);
+	rt61pci_bbp_write(rt2x00dev, 86, 0xfe);
+	rt61pci_bbp_write(rt2x00dev, 88, 0xfe);
+	rt61pci_bbp_write(rt2x00dev, 90, 0x0f);
+	rt61pci_bbp_write(rt2x00dev, 99, 0x00);
+	rt61pci_bbp_write(rt2x00dev, 102, 0x16);
+	rt61pci_bbp_write(rt2x00dev, 107, 0x04);
+
+	DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
+	for (i = 0; i < EEPROM_BBP_SIZE; i++) {
+		rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
+
+		if (eeprom != 0xffff && eeprom != 0x0000) {
+			reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
+			value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
+			DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
+				reg_id, value);
+			rt61pci_bbp_write(rt2x00dev, reg_id, value);
+		}
+	}
+	DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
+
+	return 0;
+}
+
+/*
+ * Device state switch handlers.
+ */
+static void rt61pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX,
+		state == STATE_RADIO_RX_OFF);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
+}
+
+static int rt61pci_enable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	/*
+	 * Initialize all registers.
+	 */
+	if (rt61pci_init_rings(rt2x00dev) ||
+	    rt61pci_init_registers(rt2x00dev) ||
+	    rt61pci_init_bbp(rt2x00dev)) {
+		ERROR(rt2x00dev, "Register initialization failed.\n");
+		return -EIO;
+	}
+
+	/*
+	 * Clear interrupts.
+	 */
+	rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
+	rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
+
+	rt2x00pci_register_read(rt2x00dev, MCU_INT_SOURCE_CSR, &reg);
+	rt2x00pci_register_write(rt2x00dev, MCU_INT_SOURCE_CSR, reg);
+
+	/*
+	 * Enable interrupts.
+	 */
+	reg = 0;
+	rt2x00_set_field32(&reg, INT_MASK_CSR_TX_ABORT_DONE, 1);
+	rt2x00_set_field32(&reg, INT_MASK_CSR_MITIGATION_PERIOD, 0xff);
+	rt2x00pci_register_write(rt2x00dev, INT_MASK_CSR, reg);
+
+	rt2x00pci_register_write(rt2x00dev, MCU_INT_MASK_CSR, 0x00000000);
+
+	/*
+	 * Enable RX.
+	 */
+	rt2x00pci_register_write(rt2x00dev, RX_CNTL_CSR, 0x00000001);
+
+	/*
+	 * Enable LED
+	 */
+	rt61pci_enable_led(rt2x00dev);
+
+	return 0;
+}
+
+static void rt61pci_disable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	/*
+	 * Disable LED
+	 */
+	rt61pci_disable_led(rt2x00dev);
+
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
+
+	/*
+	 * Disable synchronisation.
+	 */
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, 0);
+
+	/*
+	 * Cancel RX and TX.
+	 */
+	rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, &reg);
+	rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC0, 1);
+	rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC1, 1);
+	rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC2, 1);
+	rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC3, 1);
+	rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_MGMT, 1);
+	rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
+
+	/*
+	 * Disable interrupts.
+	 */
+	reg = 0xffffffff;
+	rt2x00_set_field32(&reg, INT_MASK_CSR_ENABLE_MITIGATION, 0);
+	rt2x00pci_register_write(rt2x00dev, INT_MASK_CSR, reg);
+
+	rt2x00pci_register_write(rt2x00dev, MCU_INT_MASK_CSR, 0xffffffff);
+}
+
+static int rt61pci_set_state(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	u32 reg;
+	unsigned int i;
+	char put_to_sleep;
+	char current_state;
+
+	put_to_sleep = (state != STATE_AWAKE);
+
+	rt2x00pci_register_read(rt2x00dev, MAC_CSR12, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR12_FORCE_WAKEUP, !put_to_sleep);
+	rt2x00_set_field32(&reg, MAC_CSR12_PUT_TO_SLEEP, put_to_sleep);
+	rt2x00pci_register_write(rt2x00dev, MAC_CSR12, reg);
+
+	if (put_to_sleep) {
+		rt2x00pci_register_write(rt2x00dev, SOFT_RESET_CSR, 0x00000005);
+		rt2x00pci_register_write(rt2x00dev, IO_CNTL_CSR, 0x0000001c);
+		rt2x00pci_register_write(rt2x00dev, PCI_USEC_CSR, 0x00000060);
+		rt61pci_mcu_request(rt2x00dev, MCU_SLEEP, 0xff, 0x00, 0x00);
+	} else {
+		rt2x00pci_register_write(rt2x00dev, SOFT_RESET_CSR, 0x00000007);
+		rt2x00pci_register_write(rt2x00dev, IO_CNTL_CSR, 0x00000018);
+		rt2x00pci_register_write(rt2x00dev, PCI_USEC_CSR, 0x00000020);
+		rt61pci_mcu_request(rt2x00dev, MCU_WAKEUP, 0xff, 0x00, 0x00);
+	}
+
+	/*
+	 * Device is not guaranteed to be in the requested state yet.
+	 * We must wait until the register indicates that the
+	 * device has entered the correct state.
+	 */
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt2x00pci_register_read(rt2x00dev, MAC_CSR12, &reg);
+		current_state = rt2x00_get_field32(reg,
+			MAC_CSR12_BBP_CURRENT_STATE);
+		if (current_state == !put_to_sleep)
+			return 0;
+		msleep(10);
+	}
+
+	NOTICE(rt2x00dev, "Device failed to enter state %d, "
+		"current device state %d.\n", !put_to_sleep, current_state);
+
+	return -EBUSY;
+}
+
+static int rt61pci_set_device_state(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	int retval = 0;
+
+	switch (state) {
+		case STATE_RADIO_ON:
+			retval = rt61pci_enable_radio(rt2x00dev);
+		break;
+		case STATE_RADIO_OFF:
+			rt61pci_disable_radio(rt2x00dev);
+		break;
+		case STATE_RADIO_RX_ON:
+		case STATE_RADIO_RX_OFF:
+			rt61pci_toggle_rx(rt2x00dev, state);
+		break;
+		case STATE_DEEP_SLEEP:
+		case STATE_SLEEP:
+		case STATE_STANDBY:
+		case STATE_AWAKE:
+			retval = rt61pci_set_state(rt2x00dev, state);
+		break;
+		default:
+			retval = -ENOTSUPP;
+		break;
+	}
+
+	return retval;
+}
+
+/*
+ * TX descriptor initialization
+ */
+static void rt61pci_write_tx_desc(struct rt2x00_dev *rt2x00dev,
+	struct data_entry *entry, struct data_desc *txd,
+	struct data_entry_desc *desc, struct ieee80211_hdr *ieee80211hdr,
+	unsigned int length, struct ieee80211_tx_control *control)
+{
+	u32 word;
+
+	/*
+	 * Start writing the descriptor words.
+	 */
+	rt2x00_desc_read(txd, 1, &word);
+	rt2x00_set_field32(&word, TXD_W1_HOST_Q_ID, desc->queue);
+	rt2x00_set_field32(&word, TXD_W1_AIFSN, entry->ring->tx_params.aifs);
+	rt2x00_set_field32(&word, TXD_W1_CWMIN, entry->ring->tx_params.cw_min);
+	rt2x00_set_field32(&word, TXD_W1_CWMAX, entry->ring->tx_params.cw_max);
+	rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
+	rt2x00_set_field32(&word, TXD_W1_HW_SEQUENCE, 1);
+	rt2x00_desc_write(txd, 1, word);
+
+	rt2x00_desc_read(txd, 2, &word);
+	rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, desc->signal);
+	rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, desc->service);
+	rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, desc->length_low);
+	rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, desc->length_high);
+	rt2x00_desc_write(txd, 2, word);
+
+	rt2x00_desc_read(txd, 5, &word);
+	rt2x00_set_field32(&word, TXD_W5_TX_POWER,
+		TXPOWER_TO_DEV(control->power_level));
+	rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1);
+	rt2x00_desc_write(txd, 5, word);
+
+	rt2x00_desc_read(txd, 11, &word);
+	rt2x00_set_field32(&word, TXD_W11_BUFFER_LENGTH0, length);
+	rt2x00_desc_write(txd, 11, word);
+
+	rt2x00_desc_read(txd, 0, &word);
+	rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1);
+	rt2x00_set_field32(&word, TXD_W0_VALID, 1);
+	rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
+		test_bit(ENTRY_TXD_MORE_FRAG, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_ACK,
+		test_bit(ENTRY_TXD_REQ_ACK, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
+		test_bit(ENTRY_TXD_REQ_TIMESTAMP, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_OFDM,
+		test_bit(ENTRY_TXD_OFDM_RATE, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs);
+	rt2x00_set_field32(&word, TXD_W0_RETRY_MODE, 0);
+	rt2x00_set_field32(&word, TXD_W0_TKIP_MIC, 0);
+	rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, length);
+	rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE);
+	rt2x00_desc_write(txd, 0, word);
+}
+
+/*
+ * TX data initialization
+ */
+static void rt61pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev, int queue)
+{
+	u32 reg;
+
+	if (queue == IEEE80211_TX_QUEUE_BEACON) {
+		rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
+		if (!rt2x00_get_field32(reg, TXRX_CSR9_BEACON_GEN)) {
+			rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 1);
+			rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
+		}
+		return;
+	}
+
+	rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, &reg);
+	if (queue == IEEE80211_TX_QUEUE_DATA0)
+		rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_AC0, 1);
+	else if (queue == IEEE80211_TX_QUEUE_DATA1)
+		rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_AC1, 1);
+	else if (queue == IEEE80211_TX_QUEUE_DATA2)
+		rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_AC2, 1);
+	else if (queue == IEEE80211_TX_QUEUE_DATA3)
+		rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_AC3, 1);
+	else if (queue == IEEE80211_TX_QUEUE_DATA4)
+		rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_MGMT, 1);
+	rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
+}
+
+/*
+ * Interrupt functions.
+ */
+static void rt61pci_rxdone(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_ring *ring = rt2x00dev->rx;
+	struct data_entry *entry;
+	struct data_desc *rxd;
+	u32 word0;
+	u32 word1;
+	int signal;
+	int rssi;
+	int ofdm;
+	u16 size;
+
+	while (1) {
+		entry = rt2x00_get_data_entry(ring);
+		rxd = entry->priv;
+		rt2x00_desc_read(rxd, 0, &word0);
+		rt2x00_desc_read(rxd, 1, &word1);
+
+		if (rt2x00_get_field32(word0, RXD_W0_OWNER_NIC))
+			break;
+
+		/*
+		 * TODO: Don't we need to keep statistics
+		 * updated about events like CRC and physical errors?
+		 */
+		if (rt2x00_get_field32(word0, RXD_W0_CRC))
+			goto skip_entry;
+
+		/*
+		 * Obtain the status about this packet.
+		 */
+		size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
+		signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
+		rssi = rt2x00_get_field32(word1, RXD_W1_RSSI);
+		ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
+
+		/*
+		 * Send the packet to upper layer.
+		 */
+		rt2x00lib_rxdone(entry, entry->data_addr, size,
+			signal, rssi, ofdm);
+
+skip_entry:
+		if (test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags)) {
+			rt2x00_set_field32(&word0, RXD_W0_OWNER_NIC, 1);
+			rt2x00_desc_write(rxd, 0, word0);
+		}
+
+		rt2x00_ring_index_inc(ring);
+	}
+}
+
+static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_ring *ring;
+	struct data_entry *entry;
+	struct data_desc *txd;
+	u32 word;
+	u32 reg;
+	int index;
+	int tx_status;
+	int retry;
+
+	while (1) {
+		rt2x00pci_register_read(rt2x00dev, STA_CSR4, &reg);
+		if (!rt2x00_get_field32(reg, STA_CSR4_VALID))
+			break;
+
+		/*
+		 * Skip this entry when it contains an invalid
+		 * ring identication number.
+		 */
+		ring = rt2x00_get_ring(rt2x00dev,
+			rt2x00_get_field32(reg, STA_CSR4_PID_TYPE));
+		if (unlikely(!ring))
+			continue;
+
+		/*
+		 * Skip this entry when it contains an invalid
+		 * index number.
+		 */
+		index = rt2x00_get_field32(reg, STA_CSR4_PID_SUBTYPE);
+		if (unlikely(index >= ring->stats.limit))
+			continue;
+
+		entry = &ring->entry[index];
+		txd = entry->priv;
+		rt2x00_desc_read(txd, 0, &word);
+
+		if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
+		    !rt2x00_get_field32(word, TXD_W0_VALID))
+			return;
+
+		/*
+		 * Obtain the status about this packet.
+		 */
+		tx_status = rt2x00_get_field32(reg, STA_CSR4_TX_RESULT);
+		retry = rt2x00_get_field32(reg, STA_CSR4_RETRY_COUNT);
+
+		rt2x00lib_txdone(entry, tx_status, retry);
+
+		/*
+		 * Make this entry available for reuse.
+		 */
+		entry->flags = 0;
+		rt2x00_set_field32(&word, TXD_W0_VALID, 0);
+		rt2x00_desc_write(txd, 0, word);
+		rt2x00_ring_index_done_inc(entry->ring);
+
+		/*
+		 * If the data ring was full before the txdone handler
+		 * we must make sure the packet queue in the mac80211 stack
+		 * is reenabled when the txdone handler has finished.
+		 */
+		if (!rt2x00_ring_full(ring))
+			ieee80211_wake_queue(rt2x00dev->hw,
+				entry->tx_status.control.queue);
+	}
+}
+
+static irqreturn_t rt61pci_interrupt(int irq, void *dev_instance)
+{
+	struct rt2x00_dev *rt2x00dev = dev_instance;
+	u32 reg;
+
+	/*
+	 * Get the interrupt sources & saved to local variable.
+	 * Write register value back to clear pending interrupts.
+	 */
+	rt2x00pci_register_read(rt2x00dev, MCU_INT_SOURCE_CSR, &reg);
+	rt2x00pci_register_write(rt2x00dev, MCU_INT_SOURCE_CSR, reg);
+
+	rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
+	rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
+
+	if (!reg)
+		return IRQ_NONE;
+
+	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+		return IRQ_HANDLED;
+
+	/*
+	 * Handle interrupts, walk through all bits
+	 * and run the tasks, the bits are checked in order of
+	 * priority.
+	 */
+
+	/*
+	 * 1 - Beacon timer expired interrupt.
+	 */
+	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_BEACON_DONE))
+		rt2x00pci_beacondone(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
+
+	/*
+	 * 2 - Rx ring done interrupt.
+	 */
+	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_RXDONE))
+		rt61pci_rxdone(rt2x00dev);
+
+	/*
+	 * 3 - Tx ring done interrupt.
+	 */
+	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TXDONE))
+		rt61pci_txdone(rt2x00dev);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * Device initialization functions.
+ */
+static int rt61pci_alloc_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	struct eeprom_93cx6 eeprom;
+	u32 reg;
+	u16 word;
+
+	/*
+	 * Allocate the eeprom memory, check the eeprom width
+	 * and copy the entire eeprom into this allocated memory.
+	 */
+	rt2x00dev->eeprom = kzalloc(EEPROM_SIZE, GFP_KERNEL);
+	if (!rt2x00dev->eeprom)
+		return -ENOMEM;
+
+	rt2x00pci_register_read(rt2x00dev, E2PROM_CSR, &reg);
+
+	eeprom.data = rt2x00dev;
+	eeprom.register_read = rt61pci_eepromregister_read;
+	eeprom.register_write = rt61pci_eepromregister_write;
+	eeprom.width = rt2x00_get_field32(reg, E2PROM_CSR_TYPE_93C46) ?
+		PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
+	eeprom.reg_data_in = 0;
+	eeprom.reg_data_out = 0;
+	eeprom.reg_data_clock = 0;
+	eeprom.reg_chip_select = 0;
+
+	eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
+		EEPROM_SIZE / sizeof(u16));
+
+	/*
+	 * Start validation of the data that has been read.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT, 2);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT, 2);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_FRAME_TYPE, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF5225);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
+		EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_NIC_ENABLE_DIVERSITY, 0);
+		rt2x00_set_field16(&word, EEPROM_NIC_TX_DIVERSITY, 0);
+		rt2x00_set_field16(&word, EEPROM_NIC_TX_RX_FIXED, 0);
+		rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA_BG, 0);
+		rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
+		rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA_A, 0);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
+		EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_LED_LED_MODE,
+			LED_MODE_DEFAULT);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_LED, word);
+		EEPROM(rt2x00dev, "Led: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_FREQ_OFFSET, 0);
+		rt2x00_set_field16(&word, EEPROM_FREQ_SEQ, 0);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_FREQ, word);
+		EEPROM(rt2x00dev, "Freq: 0x%04x\n", word);
+	}
+
+	return 0;
+}
+
+static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+	u16 value;
+	u16 eeprom;
+	u16 device;
+
+	/*
+	 * Read EEPROM word for configuration.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
+
+	/*
+	 * Identify RF chipset.
+	 * To determine the RT chip we have to read the
+	 * PCI header of the device.
+	 */
+	pci_read_config_word(rt2x00dev_pci(rt2x00dev),
+		PCI_CONFIG_HEADER_DEVICE, &device);
+	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
+	rt2x00pci_register_read(rt2x00dev, MAC_CSR0, &reg);
+	rt2x00_set_chip(rt2x00dev, device, value, reg);
+
+	if (!rt2x00_rf(&rt2x00dev->chip, RF5225) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF5325) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2527) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2529)) {
+		ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
+		return -ENODEV;
+	}
+
+	/*
+	 * Identify default antenna configuration.
+	 */
+	rt2x00dev->hw->conf.antenna_sel_tx = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_TX_DEFAULT);
+	rt2x00dev->hw->conf.antenna_sel_rx = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_RX_DEFAULT);
+
+	/*
+	 * Read the Frame type.
+	 */
+	if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_FRAME_TYPE))
+		__set_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags);
+
+	/*
+	 * Determine number of antenna's.
+	 */
+	if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_NUM) == 2)
+		__set_bit(CONFIG_DOUBLE_ANTENNA, &rt2x00dev->flags);
+
+	/*
+	 * Detect if this device has an hardware controlled radio.
+	 */
+	if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
+		__set_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
+
+	/*
+	 * Read frequency offset and RF programming sequence.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom);
+	if (rt2x00_get_field16(eeprom, EEPROM_FREQ_SEQ))
+		__set_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags);
+
+	rt2x00dev->freq_offset =
+		rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET);
+
+	/*
+	 * Read external LNA informations.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
+
+	if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA_A))
+		__set_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
+	if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA_BG))
+		__set_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
+
+	/*
+	 * Store led settings, for correct led behaviour.
+	 * If the eeprom value is invalid,
+	 * switch to default led mode.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom);
+
+	rt2x00dev->led_mode = rt2x00_get_field16(eeprom, EEPROM_LED_LED_MODE);
+
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LED_MODE,
+		rt2x00dev->led_mode);
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_0,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_0));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_1,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_1));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_2,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_2));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_3,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_3));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_4,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_4));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_ACT,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_ACT));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_READY_BG,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_RDY_G));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_READY_A,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_RDY_A));
+
+	return 0;
+}
+
+/*
+ * RF value list for RF5225, RF5325, RF2527 & RF2529
+ * Supports: 2.4 GHz
+ */
+static const u32 rf_vals_bg[] = {
+	0x00004786, 0x00004786, 0x0000478a, 0x0000478a, 0x0000478e,
+	0x0000478e, 0x00004792, 0x00004792, 0x00004796, 0x00004796,
+	0x0000479a, 0x0000479a, 0x0000479e, 0x000047a2
+};
+
+/*
+ * RF value list for RF5225 & RF5325 (supplement to vals_bg)
+ * Supports: 5.2 GHz, rf_sequence disabled
+ */
+static const u32 rf_vals_a_5x_noseq[] = {
+	0x0000499a, 0x000049a2, 0x000049a6, 0x000049aa, 0x000049ae,
+	0x000049b2, 0x000049ba, 0x000049be, 0x00004a2a, 0x00004a2e,
+	0x00004a32, 0x00004a36, 0x00004a3a, 0x00004a82, 0x00004a86,
+	0x00004a8a, 0x00004a8e, 0x00004a92, 0x00004a9a, 0x00004aa2,
+	0x00004aa6, 0x00004aae, 0x00004ab2, 0x00004ab6
+};
+
+/*
+ * RF value list for RF5225 & RF5325 (supplement to vals_bg)
+ * Supports: 5.2 GHz, rf_sequence enabled
+ */
+static const u32 rf_vals_a_5x_seq[] = {
+	0x0004481a, 0x00044682, 0x00044686, 0x0004468e, 0x00044692,
+	0x0004469a, 0x000446a2, 0x000446a6, 0x0004489a, 0x000448a2,
+	0x000448aa, 0x000448b2, 0x000448ba, 0x00044702, 0x00044706,
+	0x0004470e, 0x00044712, 0x0004471a, 0x00044722, 0x0004472e,
+	0x00044736, 0x0004490a, 0x00044912, 0x0004491a
+};
+
+static void rt61pci_init_hw_mode(struct rt2x00_dev *rt2x00dev)
+{
+	struct hw_mode_spec *spec = &rt2x00dev->spec;
+	u8 *txpower;
+	unsigned int i;
+
+	/*
+	 * Initialize all hw fields.
+	 */
+	rt2x00dev->hw->flags = IEEE80211_HW_HOST_GEN_BEACON |
+		IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
+		IEEE80211_HW_WEP_INCLUDE_IV |
+		IEEE80211_HW_DATA_NULLFUNC_ACK |
+		IEEE80211_HW_NO_TKIP_WMM_HWACCEL |
+		IEEE80211_HW_MONITOR_DURING_OPER;
+	rt2x00dev->hw->extra_tx_headroom = 0;
+	rt2x00dev->hw->max_rssi = MAX_RX_SSI;
+	rt2x00dev->hw->max_noise = MAX_RX_NOISE;
+	rt2x00dev->hw->queues = 5;
+
+	/*
+	 * Convert tx_power array in eeprom.
+	 */
+	txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_G_START);
+	for (i = 0; i < 14; i++)
+		txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
+
+	/*
+	 * Initialize hw_mode information.
+	 */
+	spec->mac_addr = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
+	spec->num_modes = 2;
+	spec->num_rates = 12;
+	spec->num_channels = 14;
+	spec->tx_power_a = NULL;
+	spec->tx_power_bg = txpower;
+	spec->tx_power_default = DEFAULT_TXPOWER;
+	spec->chan_val_a = NULL;
+	spec->chan_val_bg = rf_vals_bg;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF5325)) {
+		spec->num_modes = 3;
+		spec->num_channels += 24;
+
+		txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
+		for (i = 0; i < 14; i++)
+			txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
+
+		spec->tx_power_a = txpower;
+		if (!test_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags))
+			spec->chan_val_a = rf_vals_a_5x_noseq;
+		else
+			spec->chan_val_a = rf_vals_a_5x_seq;
+	}
+}
+
+static int rt61pci_init_hw(struct rt2x00_dev *rt2x00dev)
+{
+	int retval;
+
+	/*
+	 * Allocate eeprom data.
+	 */
+	retval = rt61pci_alloc_eeprom(rt2x00dev);
+	if (retval)
+		return retval;
+
+	retval = rt61pci_init_eeprom(rt2x00dev);
+	if (retval)
+		return retval;
+
+	/*
+	 * Initialize hw specifications.
+	 */
+	rt61pci_init_hw_mode(rt2x00dev);
+
+	/*
+	 * rt61pci requires firmware
+	 */
+	__set_bit(FIRMWARE_REQUIRED, &rt2x00dev->flags);
+
+	return 0;
+}
+
+/*
+ * IEEE80211 stack callback functions.
+ */
+static int rt61pci_get_stats(struct ieee80211_hw *hw,
+	struct ieee80211_low_level_stats *stats)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u32 reg;
+
+	/*
+	 * Update FCS error count from register.
+	 * The dot11ACKFailureCount, dot11RTSFailureCount and
+	 * dot11RTSSuccessCount are updated in interrupt time.
+	 */
+	rt2x00pci_register_read(rt2x00dev, STA_CSR0, &reg);
+	rt2x00dev->low_level_stats.dot11FCSErrorCount +=
+		rt2x00_get_field32(reg, STA_CSR0_FCS_ERROR);
+
+	memcpy(stats, &rt2x00dev->low_level_stats, sizeof(*stats));
+
+	return 0;
+}
+
+static int rt61pci_set_retry_limit(struct ieee80211_hw *hw,
+	u32 short_retry, u32 long_retry)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR4_LONG_RETRY_LIMIT, long_retry);
+	rt2x00_set_field32(&reg, TXRX_CSR4_SHORT_RETRY_LIMIT, short_retry);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg);
+
+	return 0;
+}
+
+static u64 rt61pci_get_tsf(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u64 tsf;
+	u32 reg;
+
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR13, &reg);
+	tsf = (u64)rt2x00_get_field32(reg, TXRX_CSR13_HIGH_TSFTIMER) << 32;
+	rt2x00pci_register_read(rt2x00dev, TXRX_CSR12, &reg);
+	tsf |= rt2x00_get_field32(reg, TXRX_CSR12_LOW_TSFTIMER);
+
+	return tsf;
+}
+
+static void rt61pci_reset_tsf(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR12, 0);
+	rt2x00pci_register_write(rt2x00dev, TXRX_CSR13, 0);
+}
+
+static const struct ieee80211_ops rt61pci_mac80211_ops = {
+	.tx			= rt2x00lib_tx,
+	.reset			= rt2x00lib_reset,
+	.open			= rt2x00lib_open,
+	.stop			= rt2x00lib_stop,
+	.add_interface		= rt2x00lib_add_interface,
+	.remove_interface	= rt2x00lib_remove_interface,
+	.config			= rt2x00lib_config,
+	.config_interface	= rt2x00lib_config_interface,
+	.set_multicast_list	= rt2x00lib_set_multicast_list,
+	.get_stats		= rt61pci_get_stats,
+	.set_retry_limit	= rt61pci_set_retry_limit,
+	.conf_tx		= rt2x00lib_conf_tx,
+	.get_tx_stats		= rt2x00lib_get_tx_stats,
+	.get_tsf		= rt61pci_get_tsf,
+	.reset_tsf		= rt61pci_reset_tsf,
+	.beacon_update		= rt2x00pci_beacon_update,
+};
+
+static const struct rt2x00lib_ops rt61pci_rt2x00_ops = {
+	.irq_handler		= rt61pci_interrupt,
+	.init_hw		= rt61pci_init_hw,
+	.get_fw_name		= rt61pci_get_fw_name,
+	.load_firmware		= rt61pci_load_firmware,
+	.initialize		= rt2x00pci_initialize,
+	.uninitialize		= rt2x00pci_uninitialize,
+	.set_device_state	= rt61pci_set_device_state,
+#ifdef CONFIG_RT61PCI_RFKILL
+	.rfkill_poll		= rt61pci_rfkill_poll,
+#endif /* CONFIG_RT61PCI_RFKILL */
+	.link_tuner		= rt61pci_link_tuner,
+	.write_tx_desc		= rt61pci_write_tx_desc,
+	.write_tx_data		= rt2x00pci_write_tx_data,
+	.kick_tx_queue		= rt61pci_kick_tx_queue,
+	.config_type		= rt61pci_config_type,
+	.config_phymode		= rt61pci_config_phymode,
+	.config_channel		= rt61pci_config_channel,
+	.config_mac_addr	= rt61pci_config_mac_addr,
+	.config_bssid		= rt61pci_config_bssid,
+	.config_promisc		= rt61pci_config_promisc,
+	.config_txpower		= rt61pci_config_txpower,
+	.config_antenna		= rt61pci_config_antenna,
+	.config_duration	= rt61pci_config_duration,
+};
+
+static const struct rt2x00_ops rt61pci_ops = {
+	.name	= DRV_NAME,
+	.rxd_size = RXD_DESC_SIZE,
+	.txd_size = TXD_DESC_SIZE,
+	.lib	= &rt61pci_rt2x00_ops,
+	.hw	= &rt61pci_mac80211_ops,
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+	.debugfs = &rt61pci_rt2x00debug,
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+};
+
+/*
+ * RT61pci module information.
+ */
+static struct pci_device_id rt61pci_device_table[] = {
+	/* RT2561s */
+	{ PCI_DEVICE(0x1814, 0x0301), PCI_DEVICE_DATA(&rt61pci_ops) },
+	/* RT2561 v2 */
+	{ PCI_DEVICE(0x1814, 0x0302), PCI_DEVICE_DATA(&rt61pci_ops) },
+	/* RT2661 */
+	{ PCI_DEVICE(0x1814, 0x0401), PCI_DEVICE_DATA(&rt61pci_ops) },
+	{ 0, }
+};
+
+MODULE_AUTHOR(DRV_PROJECT);
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("Ralink RT61 PCI & PCMCIA Wireless LAN driver.");
+MODULE_SUPPORTED_DEVICE("Ralink RT2561, RT2561s & RT2661 "
+	"PCI & PCMCIA chipset based cards");
+MODULE_DEVICE_TABLE(pci, rt61pci_device_table);
+MODULE_FIRMWARE(FIRMWARE_RT2561);
+MODULE_FIRMWARE(FIRMWARE_RT2561s);
+MODULE_FIRMWARE(FIRMWARE_RT2661);
+MODULE_LICENSE("GPL");
+
+static struct pci_driver rt61pci_driver = {
+	.name		= DRV_NAME,
+	.id_table	= rt61pci_device_table,
+	.probe		= rt2x00pci_probe,
+	.remove		= __devexit_p(rt2x00pci_remove),
+#ifdef CONFIG_PM
+	.suspend	= rt2x00pci_suspend,
+	.resume		= rt2x00pci_resume,
+#endif /* CONFIG_PM */
+};
+
+static int __init rt61pci_init(void)
+{
+	printk(KERN_INFO "Loading module: %s - %s by %s.\n",
+		DRV_NAME, DRV_VERSION, DRV_PROJECT);
+	return pci_register_driver(&rt61pci_driver);
+}
+
+static void __exit rt61pci_exit(void)
+{
+	printk(KERN_INFO "Unloading module: %s.\n", DRV_NAME);
+	pci_unregister_driver(&rt61pci_driver);
+}
+
+module_init(rt61pci_init);
+module_exit(rt61pci_exit);
diff --git a/package/rt2x00/src/rt61pci.h b/package/rt2x00/src/rt61pci.h
new file mode 100644
index 0000000..6834732
--- /dev/null
+++ b/package/rt2x00/src/rt61pci.h
@@ -0,0 +1,1358 @@
+/*
+	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: rt61pci
+	Abstract: Data structures and registers for the rt61pci module.
+	Supported chipsets: RT2561, RT2561s, RT2661.
+ */
+
+#ifndef RT61PCI_H
+#define RT61PCI_H
+
+/*
+ * RF chip defines.
+ */
+#define RF5225				0x0001
+#define RF5325				0x0002
+#define RF2527				0x0003
+#define RF2529				0x0004
+
+/*
+ * Max RSSI value, required for RSSI <-> dBm conversion.
+ */
+#define MAX_RX_SSI			120
+#define MAX_RX_NOISE			-110
+
+/*
+ * Register layout information.
+ */
+#define CSR_REG_BASE			0x3000
+#define CSR_REG_SIZE			0x04b0
+#define EEPROM_BASE			0x0000
+#define EEPROM_SIZE			0x0100
+#define BBP_SIZE			0x0080
+
+/*
+ * PCI registers.
+ */
+
+/*
+ * PCI Configuration Header
+ */
+#define PCI_CONFIG_HEADER_VENDOR	0x0000
+#define PCI_CONFIG_HEADER_DEVICE	0x0002
+
+/*
+ * HOST_CMD_CSR: For HOST to interrupt embedded processor
+ */
+#define HOST_CMD_CSR			0x0008
+#define HOST_CMD_CSR_HOST_COMMAND	FIELD32(0x0000007f)
+#define HOST_CMD_CSR_INTERRUPT_MCU	FIELD32(0x00000080)
+
+/*
+ * MCU_CNTL_CSR
+ * SELECT_BANK: Select 8051 program bank.
+ * RESET: Enable 8051 reset state.
+ * READY: Ready state for 8051.
+ */
+#define MCU_CNTL_CSR			0x000c
+#define MCU_CNTL_CSR_SELECT_BANK	FIELD32(0x00000001)
+#define MCU_CNTL_CSR_RESET		FIELD32(0x00000002)
+#define MCU_CNTL_CSR_READY		FIELD32(0x00000004)
+
+/*
+ * SOFT_RESET_CSR
+ */
+#define SOFT_RESET_CSR			0x0010
+
+/*
+ * MCU_INT_SOURCE_CSR: MCU interrupt source/mask register.
+ */
+#define MCU_INT_SOURCE_CSR		0x0014
+#define MCU_INT_SOURCE_CSR_0		FIELD32(0x00000001)
+#define MCU_INT_SOURCE_CSR_1		FIELD32(0x00000002)
+#define MCU_INT_SOURCE_CSR_2		FIELD32(0x00000004)
+#define MCU_INT_SOURCE_CSR_3		FIELD32(0x00000008)
+#define MCU_INT_SOURCE_CSR_4		FIELD32(0x00000010)
+#define MCU_INT_SOURCE_CSR_5		FIELD32(0x00000020)
+#define MCU_INT_SOURCE_CSR_6		FIELD32(0x00000040)
+#define MCU_INT_SOURCE_CSR_7		FIELD32(0x00000080)
+#define MCU_INT_SOURCE_CSR_TWAKEUP	FIELD32(0x00000100)
+#define MCU_INT_SOURCE_CSR_TBTT_EXPIRE	FIELD32(0x00000200)
+
+/*
+ * MCU_INT_MASK_CSR: MCU interrupt source/mask register.
+ */
+#define MCU_INT_MASK_CSR		0x0018
+#define MCU_INT_MASK_CSR_0		FIELD32(0x00000001)
+#define MCU_INT_MASK_CSR_1		FIELD32(0x00000002)
+#define MCU_INT_MASK_CSR_2		FIELD32(0x00000004)
+#define MCU_INT_MASK_CSR_3		FIELD32(0x00000008)
+#define MCU_INT_MASK_CSR_4		FIELD32(0x00000010)
+#define MCU_INT_MASK_CSR_5		FIELD32(0x00000020)
+#define MCU_INT_MASK_CSR_6		FIELD32(0x00000040)
+#define MCU_INT_MASK_CSR_7		FIELD32(0x00000080)
+#define MCU_INT_MASK_CSR_TWAKEUP	FIELD32(0x00000100)
+#define MCU_INT_MASK_CSR_TBTT_EXPIRE	FIELD32(0x00000200)
+
+/*
+ * PCI_USEC_CSR
+ */
+#define PCI_USEC_CSR			0x001c
+
+/*
+ * Security key table memory.
+ * 16 entries 32-byte for shared key table
+ * 64 entries 32-byte for pairwise key table
+ * 64 entries 8-byte for pairwise ta key table
+ */
+#define SHARED_KEY_TABLE_BASE		0x1000
+#define PAIRWISE_KEY_TABLE_BASE		0x1200
+#define PAIRWISE_TA_TABLE_BASE		0x1a00
+
+struct hw_key_entry {
+	u8 key[16];
+	u8 tx_mic[8];
+	u8 rx_mic[8];
+} __attribute__ ((packed));
+
+struct hw_pairwise_ta_entry {
+	u8 address[6];
+	u8 reserved[2];
+} __attribute__ ((packed));
+
+/*
+ * Other on-chip shared memory space.
+ */
+#define HW_CIS_BASE			0x2000
+#define HW_NULL_BASE			0x2b00
+
+/*
+ * Since NULL frame won't be that long (256 byte),
+ * We steal 16 tail bytes to save debugging settings.
+ */
+#define HW_DEBUG_SETTING_BASE		0x2bf0
+
+/*
+ * On-chip BEACON frame space.
+ */
+#define HW_BEACON_BASE0			0x2c00
+#define HW_BEACON_BASE1			0x2d00
+#define HW_BEACON_BASE2			0x2e00
+#define HW_BEACON_BASE3			0x2f00
+#define HW_BEACON_OFFSET		0x0100
+
+/*
+ * HOST-MCU shared memory.
+ */
+
+/*
+ * H2M_MAILBOX_CSR: Host-to-MCU Mailbox.
+ */
+#define H2M_MAILBOX_CSR			0x2100
+#define H2M_MAILBOX_CSR_ARG0		FIELD32(0x000000ff)
+#define H2M_MAILBOX_CSR_ARG1		FIELD32(0x0000ff00)
+#define H2M_MAILBOX_CSR_CMD_TOKEN	FIELD32(0x00ff0000)
+#define H2M_MAILBOX_CSR_OWNER		FIELD32(0xff000000)
+
+/*
+ * MCU_LEDCS: LED control for MCU Mailbox.
+ */
+#define MCU_LEDCS_LED_MODE		FIELD16(0x001f)
+#define MCU_LEDCS_RADIO_STATUS		FIELD16(0x0020)
+#define MCU_LEDCS_LINK_BG_STATUS	FIELD16(0x0040)
+#define MCU_LEDCS_LINK_A_STATUS		FIELD16(0x0080)
+#define MCU_LEDCS_POLARITY_GPIO_0	FIELD16(0x0100)
+#define MCU_LEDCS_POLARITY_GPIO_1	FIELD16(0x0200)
+#define MCU_LEDCS_POLARITY_GPIO_2	FIELD16(0x0400)
+#define MCU_LEDCS_POLARITY_GPIO_3	FIELD16(0x0800)
+#define MCU_LEDCS_POLARITY_GPIO_4	FIELD16(0x1000)
+#define MCU_LEDCS_POLARITY_ACT		FIELD16(0x2000)
+#define MCU_LEDCS_POLARITY_READY_BG	FIELD16(0x4000)
+#define MCU_LEDCS_POLARITY_READY_A	FIELD16(0x8000)
+
+/*
+ * M2H_CMD_DONE_CSR.
+ */
+#define M2H_CMD_DONE_CSR		0x2104
+
+/*
+ * MCU_TXOP_ARRAY_BASE.
+ */
+#define MCU_TXOP_ARRAY_BASE		0x2110
+
+/*
+ * MAC Control/Status Registers(CSR).
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * MAC_CSR0: ASIC revision number.
+ */
+#define MAC_CSR0			0x3000
+
+/*
+ * MAC_CSR1: System control register.
+ * SOFT_RESET: Software reset bit, 1: reset, 0: normal.
+ * BBP_RESET: Hardware reset BBP.
+ * HOST_READY: Host is ready after initialization, 1: ready.
+ */
+#define MAC_CSR1			0x3004
+#define MAC_CSR1_SOFT_RESET		FIELD32(0x00000001)
+#define MAC_CSR1_BBP_RESET		FIELD32(0x00000002)
+#define MAC_CSR1_HOST_READY		FIELD32(0x00000004)
+
+/*
+ * MAC_CSR2: STA MAC register 0.
+ */
+#define MAC_CSR2			0x3008
+#define MAC_CSR2_BYTE0			FIELD32(0x000000ff)
+#define MAC_CSR2_BYTE1			FIELD32(0x0000ff00)
+#define MAC_CSR2_BYTE2			FIELD32(0x00ff0000)
+#define MAC_CSR2_BYTE3			FIELD32(0xff000000)
+
+/*
+ * MAC_CSR3: STA MAC register 1.
+ */
+#define MAC_CSR3			0x300c
+#define MAC_CSR3_BYTE4			FIELD32(0x000000ff)
+#define MAC_CSR3_BYTE5			FIELD32(0x0000ff00)
+#define MAC_CSR3_UNICAST_TO_ME_MASK	FIELD32(0x00ff0000)
+
+/*
+ * MAC_CSR4: BSSID register 0.
+ */
+#define MAC_CSR4			0x3010
+#define MAC_CSR4_BYTE0			FIELD32(0x000000ff)
+#define MAC_CSR4_BYTE1			FIELD32(0x0000ff00)
+#define MAC_CSR4_BYTE2			FIELD32(0x00ff0000)
+#define MAC_CSR4_BYTE3			FIELD32(0xff000000)
+
+/*
+ * MAC_CSR5: BSSID register 1.
+ * BSS_ID_MASK: 3: one BSSID, 0: 4 BSSID, 2 or 1: 2 BSSID.
+ */
+#define MAC_CSR5			0x3014
+#define MAC_CSR5_BYTE4			FIELD32(0x000000ff)
+#define MAC_CSR5_BYTE5			FIELD32(0x0000ff00)
+#define MAC_CSR5_BSS_ID_MASK		FIELD32(0x00ff0000)
+
+/*
+ * MAC_CSR6: Maximum frame length register.
+ */
+#define MAC_CSR6			0x3018
+#define MAC_CSR6_MAX_FRAME_UNIT		FIELD32(0x000007ff)
+
+/*
+ * MAC_CSR7: Reserved
+ */
+#define MAC_CSR7			0x301c
+
+/*
+ * MAC_CSR8: SIFS/EIFS register.
+ * All units are in US.
+ */
+#define MAC_CSR8			0x3020
+#define MAC_CSR8_SIFS			FIELD32(0x000000ff)
+#define MAC_CSR8_SIFS_AFTER_RX_OFDM	FIELD32(0x0000ff00)
+#define MAC_CSR8_EIFS			FIELD32(0xffff0000)
+
+/*
+ * MAC_CSR9: Back-Off control register.
+ * SLOT_TIME: Slot time, default is 20us for 802.11BG.
+ * CWMIN: Bit for Cwmin. default Cwmin is 31 (2^5 - 1).
+ * CWMAX: Bit for Cwmax, default Cwmax is 1023 (2^10 - 1).
+ * CW_SELECT: 1: CWmin/Cwmax select from register, 0:select from TxD.
+ */
+#define MAC_CSR9			0x3024
+#define MAC_CSR9_SLOT_TIME		FIELD32(0x000000ff)
+#define MAC_CSR9_CWMIN			FIELD32(0x00000f00)
+#define MAC_CSR9_CWMAX			FIELD32(0x0000f000)
+#define MAC_CSR9_CW_SELECT		FIELD32(0x00010000)
+
+/*
+ * MAC_CSR10: Power state configuration.
+ */
+#define MAC_CSR10			0x3028
+
+/*
+ * MAC_CSR11: Power saving transition time register.
+ * DELAY_AFTER_TBCN: Delay after Tbcn expired in units of TU.
+ * TBCN_BEFORE_WAKEUP: Number of beacon before wakeup.
+ * WAKEUP_LATENCY: In unit of TU.
+ */
+#define MAC_CSR11			0x302c
+#define MAC_CSR11_DELAY_AFTER_TBCN	FIELD32(0x000000ff)
+#define MAC_CSR11_TBCN_BEFORE_WAKEUP	FIELD32(0x00007f00)
+#define MAC_CSR11_AUTOWAKE		FIELD32(0x00008000)
+#define MAC_CSR11_WAKEUP_LATENCY	FIELD32(0x000f0000)
+
+/*
+ * MAC_CSR12: Manual power control / status register (merge CSR20 & PWRCSR1).
+ * CURRENT_STATE: 0:sleep, 1:awake.
+ * FORCE_WAKEUP: This has higher priority than PUT_TO_SLEEP.
+ * BBP_CURRENT_STATE: 0: BBP sleep, 1: BBP awake.
+ */
+#define MAC_CSR12			0x3030
+#define MAC_CSR12_CURRENT_STATE		FIELD32(0x00000001)
+#define MAC_CSR12_PUT_TO_SLEEP		FIELD32(0x00000002)
+#define MAC_CSR12_FORCE_WAKEUP		FIELD32(0x00000004)
+#define MAC_CSR12_BBP_CURRENT_STATE	FIELD32(0x00000008)
+
+/*
+ * MAC_CSR13: GPIO.
+ */
+#define MAC_CSR13			0x3034
+#define MAC_CSR13_BIT0			FIELD32(0x00000001)
+#define MAC_CSR13_BIT1			FIELD32(0x00000002)
+#define MAC_CSR13_BIT2			FIELD32(0x00000004)
+#define MAC_CSR13_BIT3			FIELD32(0x00000008)
+#define MAC_CSR13_BIT4			FIELD32(0x00000010)
+#define MAC_CSR13_BIT5			FIELD32(0x00000020)
+#define MAC_CSR13_BIT6			FIELD32(0x00000040)
+#define MAC_CSR13_BIT7			FIELD32(0x00000080)
+
+/*
+ * MAC_CSR14: LED control register.
+ * ON_PERIOD: On period, default 70ms.
+ * OFF_PERIOD: Off period, default 30ms.
+ * HW_LED: HW TX activity, 1: normal OFF, 0: normal ON.
+ * SW_LED: s/w LED, 1: ON, 0: OFF.
+ * HW_LED_POLARITY: 0: active low, 1: active high.
+ */
+#define MAC_CSR14			0x3038
+#define MAC_CSR14_ON_PERIOD		FIELD32(0x000000ff)
+#define MAC_CSR14_OFF_PERIOD		FIELD32(0x0000ff00)
+#define MAC_CSR14_HW_LED		FIELD32(0x00010000)
+#define MAC_CSR14_SW_LED		FIELD32(0x00020000)
+#define MAC_CSR14_HW_LED_POLARITY	FIELD32(0x00040000)
+#define MAC_CSR14_SW_LED2		FIELD32(0x00080000)
+
+/*
+ * MAC_CSR15: NAV control.
+ */
+#define MAC_CSR15			0x303c
+
+/*
+ * TXRX control registers.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * TXRX_CSR0: TX/RX configuration register.
+ * TSF_OFFSET: Default is 24.
+ * AUTO_TX_SEQ: 1: ASIC auto replace sequence nr in outgoing frame.
+ * DISABLE_RX: Disable Rx engine.
+ * DROP_CRC: Drop CRC error.
+ * DROP_PHYSICAL: Drop physical error.
+ * DROP_CONTROL: Drop control frame.
+ * DROP_NOT_TO_ME: Drop not to me unicast frame.
+ * DROP_TO_DS: Drop fram ToDs bit is true.
+ * DROP_VERSION_ERROR: Drop version error frame.
+ * DROP_MULTICAST: Drop multicast frames.
+ * DROP_BORADCAST: Drop broadcast frames.
+ * ROP_ACK_CTS: Drop received ACK and CTS.
+ */
+#define TXRX_CSR0			0x3040
+#define TXRX_CSR0_RX_ACK_TIMEOUT	FIELD32(0x000001ff)
+#define TXRX_CSR0_TSF_OFFSET		FIELD32(0x00007e00)
+#define TXRX_CSR0_AUTO_TX_SEQ		FIELD32(0x00008000)
+#define TXRX_CSR0_DISABLE_RX		FIELD32(0x00010000)
+#define TXRX_CSR0_DROP_CRC		FIELD32(0x00020000)
+#define TXRX_CSR0_DROP_PHYSICAL		FIELD32(0x00040000)
+#define TXRX_CSR0_DROP_CONTROL		FIELD32(0x00080000)
+#define TXRX_CSR0_DROP_NOT_TO_ME	FIELD32(0x00100000)
+#define TXRX_CSR0_DROP_TO_DS		FIELD32(0x00200000)
+#define TXRX_CSR0_DROP_VERSION_ERROR	FIELD32(0x00400000)
+#define TXRX_CSR0_DROP_MULTICAST	FIELD32(0x00800000)
+#define TXRX_CSR0_DROP_BORADCAST	FIELD32(0x01000000)
+#define TXRX_CSR0_DROP_ACK_CTS		FIELD32(0x02000000)
+#define TXRX_CSR0_TX_WITHOUT_WAITING	FIELD32(0x04000000)
+
+/*
+ * TXRX_CSR1
+ */
+#define TXRX_CSR1			0x3044
+
+/*
+ * TXRX_CSR2
+ */
+#define TXRX_CSR2			0x3048
+
+/*
+ * TXRX_CSR3
+ */
+#define TXRX_CSR3			0x304c
+
+/*
+ * TXRX_CSR4: Auto-Responder/Tx-retry register.
+ * AUTORESPOND_PREAMBLE: 0:long, 1:short preamble.
+ * OFDM_TX_RATE_DOWN: 1:enable.
+ * OFDM_TX_RATE_STEP: 0:1-step, 1: 2-step, 2:3-step, 3:4-step.
+ * OFDM_TX_FALLBACK_CCK: 0: Fallback to OFDM 6M only, 1: Fallback to CCK 1M,2M.
+ */
+#define TXRX_CSR4			0x3050
+#define TXRX_CSR4_TX_ACK_TIMEOUT	FIELD32(0x000000ff)
+#define TXRX_CSR4_CNTL_ACK_POLICY	FIELD32(0x00000700)
+#define TXRX_CSR4_ACK_CTS_PSM		FIELD32(0x00010000)
+#define TXRX_CSR4_AUTORESPOND_ENABLE	FIELD32(0x00020000)
+#define TXRX_CSR4_AUTORESPOND_PREAMBLE	FIELD32(0x00040000)
+#define TXRX_CSR4_OFDM_TX_RATE_DOWN	FIELD32(0x00080000)
+#define TXRX_CSR4_OFDM_TX_RATE_STEP	FIELD32(0x00300000)
+#define TXRX_CSR4_OFDM_TX_FALLBACK_CCK	FIELD32(0x00400000)
+#define TXRX_CSR4_LONG_RETRY_LIMIT	FIELD32(0x0f000000)
+#define TXRX_CSR4_SHORT_RETRY_LIMIT	FIELD32(0xf0000000)
+
+/*
+ * TXRX_CSR5
+ */
+#define TXRX_CSR5			0x3054
+
+/*
+ * ACK/CTS payload consumed time registers.
+ */
+#define TXRX_CSR6			0x3058
+#define TXRX_CSR7			0x305c
+#define TXRX_CSR8			0x3060
+
+/*
+ * TXRX_CSR9: Synchronization control register.
+ * BEACON_INTERVAL: In unit of 1/16 TU.
+ * TSF_TICKING: Enable TSF auto counting.
+ * TSF_SYNC: Tsf sync, 0: disable, 1: infra, 2: ad-hoc/master mode.
+ * BEACON_GEN: Enable beacon generator.
+ */
+#define TXRX_CSR9			0x3064
+#define TXRX_CSR9_BEACON_INTERVAL	FIELD32(0x0000ffff)
+#define TXRX_CSR9_TSF_TICKING		FIELD32(0x00010000)
+#define TXRX_CSR9_TSF_SYNC		FIELD32(0x00060000)
+#define TXRX_CSR9_TBTT_ENABLE		FIELD32(0x00080000)
+#define TXRX_CSR9_BEACON_GEN		FIELD32(0x00100000)
+#define TXRX_CSR9_TIMESTAMP_COMPENSATE	FIELD32(0xff000000)
+
+/*
+ * TXRX_CSR10: BEACON alignment.
+ */
+#define TXRX_CSR10			0x3068
+
+/*
+ * TXRX_CSR11: AES mask.
+ */
+#define TXRX_CSR11			0x306c
+
+/*
+ * TXRX_CSR12: TSF low 32.
+ */
+#define TXRX_CSR12			0x3070
+#define TXRX_CSR12_LOW_TSFTIMER		FIELD32(0xffffffff)
+
+/*
+ * TXRX_CSR13: TSF high 32.
+ */
+#define TXRX_CSR13			0x3074
+#define TXRX_CSR13_HIGH_TSFTIMER	FIELD32(0xffffffff)
+
+/*
+ * TXRX_CSR14: TBTT timer.
+ */
+#define TXRX_CSR14			0x3078
+
+/*
+ * TXRX_CSR15: TKIP MIC priority byte "AND" mask.
+ */
+#define TXRX_CSR15			0x307c
+
+
+/*
+ * PHY control registers.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * PHY_CSR0: RF/PS control.
+ */
+#define PHY_CSR0			0x3080
+#define PHY_CSR0_PA_PE_BG		FIELD32(0x00010000)
+#define PHY_CSR0_PA_PE_A		FIELD32(0x00020000)
+
+/*
+ * PHY_CSR1
+ */
+#define PHY_CSR1			0x3084
+
+/*
+ * PHY_CSR2: Pre-TX BBP control.
+ */
+#define PHY_CSR2			0x3088
+
+/*
+ * PHY_CSR3: BBP serial control register.
+ * VALUE: Register value to program into BBP.
+ * REG_NUM: Selected BBP register.
+ * READ_CONTROL: 0: Write BBP, 1: Read BBP.
+ * BUSY: 1: ASIC is busy execute BBP programming.
+ */
+#define PHY_CSR3			0x308c
+#define PHY_CSR3_VALUE			FIELD32(0x000000ff)
+#define PHY_CSR3_REGNUM			FIELD32(0x00007f00)
+#define PHY_CSR3_READ_CONTROL		FIELD32(0x00008000)
+#define PHY_CSR3_BUSY			FIELD32(0x00010000)
+
+/*
+ * PHY_CSR4: RF serial control register
+ * VALUE: Register value (include register id) serial out to RF/IF chip.
+ * NUMBER_OF_BITS: Number of bits used in RFRegValue (I:20, RFMD:22).
+ * IF_SELECT: 1: select IF to program, 0: select RF to program.
+ * PLL_LD: RF PLL_LD status.
+ * BUSY: 1: ASIC is busy execute RF programming.
+ */
+#define PHY_CSR4			0x3090
+#define PHY_CSR4_VALUE			FIELD32(0x00ffffff)
+#define PHY_CSR4_NUMBER_OF_BITS		FIELD32(0x1f000000)
+#define PHY_CSR4_IF_SELECT		FIELD32(0x20000000)
+#define PHY_CSR4_PLL_LD			FIELD32(0x40000000)
+#define PHY_CSR4_BUSY			FIELD32(0x80000000)
+
+/*
+ * PHY_CSR5: RX to TX signal switch timing control.
+ */
+#define PHY_CSR5			0x3094
+
+/*
+ * PHY_CSR6: TX to RX signal timing control.
+ */
+#define PHY_CSR6			0x3098
+
+/*
+ * PHY_CSR7: TX DAC switching timing control.
+ */
+#define PHY_CSR7			0x309c
+
+/*
+ * Security control register.
+ */
+
+/*
+ * SEC_CSR0: Shared key table control.
+ */
+#define SEC_CSR0			0x30a0
+
+/*
+ * SEC_CSR1: Shared key table security mode register.
+ */
+#define SEC_CSR1			0x30a4
+#define SEC_CSR1_BSS0_KEY0_CIPHER_ALG	FIELD32(0x00000007)
+#define SEC_CSR1_BSS0_KEY1_CIPHER_ALG	FIELD32(0x00000070)
+#define SEC_CSR1_BSS0_KEY2_CIPHER_ALG	FIELD32(0x00000700)
+#define SEC_CSR1_BSS0_KEY3_CIPHER_ALG	FIELD32(0x00007000)
+#define SEC_CSR1_BSS1_KEY0_CIPHER_ALG	FIELD32(0x00070000)
+#define SEC_CSR1_BSS1_KEY1_CIPHER_ALG	FIELD32(0x00700000)
+#define SEC_CSR1_BSS1_KEY2_CIPHER_ALG	FIELD32(0x07000000)
+#define SEC_CSR1_BSS1_KEY3_CIPHER_ALG	FIELD32(0x70000000)
+
+/*
+ * Pairwise key table valid bitmap registers.
+ * SEC_CSR2: pairwise key table valid bitmap 0.
+ * SEC_CSR3: pairwise key table valid bitmap 1.
+ */
+#define SEC_CSR2			0x30a8
+#define SEC_CSR3			0x30ac
+
+/*
+ * SEC_CSR4: Pairwise key table lookup control.
+ */
+#define SEC_CSR4			0x30b0
+
+/*
+ * SEC_CSR5: shared key table security mode register.
+ */
+#define SEC_CSR5			0x30b4
+#define SEC_CSR5_BSS2_KEY0_CIPHER_ALG	FIELD32(0x00000007)
+#define SEC_CSR5_BSS2_KEY1_CIPHER_ALG	FIELD32(0x00000070)
+#define SEC_CSR5_BSS2_KEY2_CIPHER_ALG	FIELD32(0x00000700)
+#define SEC_CSR5_BSS2_KEY3_CIPHER_ALG	FIELD32(0x00007000)
+#define SEC_CSR5_BSS3_KEY0_CIPHER_ALG	FIELD32(0x00070000)
+#define SEC_CSR5_BSS3_KEY1_CIPHER_ALG	FIELD32(0x00700000)
+#define SEC_CSR5_BSS3_KEY2_CIPHER_ALG	FIELD32(0x07000000)
+#define SEC_CSR5_BSS3_KEY3_CIPHER_ALG	FIELD32(0x70000000)
+
+/*
+ * STA control registers.
+ */
+
+/*
+ * STA_CSR0: RX PLCP error count & RX FCS error count.
+ */
+#define STA_CSR0			0x30c0
+#define STA_CSR0_FCS_ERROR		FIELD32(0x0000ffff)
+#define STA_CSR0_PLCP_ERROR		FIELD32(0xffff0000)
+
+/*
+ * STA_CSR1: RX False CCA count & RX LONG frame count.
+ */
+#define STA_CSR1			0x30c4
+#define STA_CSR1_PHYSICAL_ERROR		FIELD32(0x0000ffff)
+#define STA_CSR1_FALSE_CCA_ERROR	FIELD32(0xffff0000)
+
+/*
+ * STA_CSR2: TX Beacon count and RX FIFO overflow count.
+ */
+#define STA_CSR2			0x30c8
+#define STA_CSR2_RX_FIFO_OVERFLOW_COUNT	FIELD32(0x0000ffff)
+#define STA_CSR2_RX_OVERFLOW_COUNT	FIELD32(0xffff0000)
+
+/*
+ * STA_CSR3: TX Beacon count.
+ */
+#define STA_CSR3			0x30cc
+#define STA_CSR3_TX_BEACON_COUNT	FIELD32(0x0000ffff)
+
+/*
+ * STA_CSR4: TX Result status register.
+ * VALID: 1:This register contains a valid TX result.
+ */
+#define STA_CSR4			0x30d0
+#define STA_CSR4_VALID			FIELD32(0x00000001)
+#define STA_CSR4_TX_RESULT		FIELD32(0x0000000e)
+#define STA_CSR4_RETRY_COUNT		FIELD32(0x000000f0)
+#define STA_CSR4_PID_SUBTYPE		FIELD32(0x00001f00)
+#define STA_CSR4_PID_TYPE		FIELD32(0x0000e000)
+#define STA_CSR4_TXRATE			FIELD32(0x000f0000)
+
+/*
+ * QOS control registers.
+ */
+
+/*
+ * QOS_CSR0: TXOP holder MAC address register.
+ */
+#define QOS_CSR0			0x30e0
+#define QOS_CSR0_BYTE0			FIELD32(0x000000ff)
+#define QOS_CSR0_BYTE1			FIELD32(0x0000ff00)
+#define QOS_CSR0_BYTE2			FIELD32(0x00ff0000)
+#define QOS_CSR0_BYTE3			FIELD32(0xff000000)
+
+/*
+ * QOS_CSR1: TXOP holder MAC address register.
+ */
+#define QOS_CSR1			0x30e4
+#define QOS_CSR1_BYTE4			FIELD32(0x000000ff)
+#define QOS_CSR1_BYTE5			FIELD32(0x0000ff00)
+
+/*
+ * QOS_CSR2: TXOP holder timeout register.
+ */
+#define QOS_CSR2			0x30e8
+
+/*
+ * RX QOS-CFPOLL MAC address register.
+ * QOS_CSR3: RX QOS-CFPOLL MAC address 0.
+ * QOS_CSR4: RX QOS-CFPOLL MAC address 1.
+ */
+#define QOS_CSR3			0x30ec
+#define QOS_CSR4			0x30f0
+
+/*
+ * QOS_CSR5: "QosControl" field of the RX QOS-CFPOLL.
+ */
+#define QOS_CSR5			0x30f4
+
+/*
+ * Host DMA registers.
+ */
+
+/*
+ * AC0_BASE_CSR: AC_BK base address.
+ */
+#define AC0_BASE_CSR			0x3400
+#define AC0_BASE_CSR_RING_REGISTER	FIELD32(0xffffffff)
+
+/*
+ * AC1_BASE_CSR: AC_BE base address.
+ */
+#define AC1_BASE_CSR			0x3404
+#define AC1_BASE_CSR_RING_REGISTER	FIELD32(0xffffffff)
+
+/*
+ * AC2_BASE_CSR: AC_VI base address.
+ */
+#define AC2_BASE_CSR			0x3408
+#define AC2_BASE_CSR_RING_REGISTER	FIELD32(0xffffffff)
+
+/*
+ * AC3_BASE_CSR: AC_VO base address.
+ */
+#define AC3_BASE_CSR			0x340c
+#define AC3_BASE_CSR_RING_REGISTER	FIELD32(0xffffffff)
+
+/*
+ * MGMT_BASE_CSR: MGMT ring base address.
+ */
+#define MGMT_BASE_CSR			0x3410
+#define MGMT_BASE_CSR_RING_REGISTER	FIELD32(0xffffffff)
+
+/*
+ * TX_RING_CSR0: TX Ring size for AC_BK, AC_BE, AC_VI, AC_VO.
+ */
+#define TX_RING_CSR0			0x3418
+#define TX_RING_CSR0_AC0_RING_SIZE	FIELD32(0x000000ff)
+#define TX_RING_CSR0_AC1_RING_SIZE	FIELD32(0x0000ff00)
+#define TX_RING_CSR0_AC2_RING_SIZE	FIELD32(0x00ff0000)
+#define TX_RING_CSR0_AC3_RING_SIZE	FIELD32(0xff000000)
+
+/*
+ * TX_RING_CSR1: TX Ring size for MGMT Ring, HCCA Ring
+ * TXD_SIZE: In unit of 32-bit.
+ */
+#define TX_RING_CSR1			0x341c
+#define TX_RING_CSR1_MGMT_RING_SIZE	FIELD32(0x000000ff)
+#define TX_RING_CSR1_HCCA_RING_SIZE	FIELD32(0x0000ff00)
+#define TX_RING_CSR1_TXD_SIZE		FIELD32(0x003f0000)
+
+/*
+ * AIFSN_CSR: AIFSN for each EDCA AC.
+ * AIFSN0: For AC_BK.
+ * AIFSN1: For AC_BE.
+ * AIFSN2: For AC_VI.
+ * AIFSN3: For AC_VO.
+ */
+#define AIFSN_CSR			0x3420
+#define AIFSN_CSR_AIFSN0		FIELD32(0x0000000f)
+#define AIFSN_CSR_AIFSN1		FIELD32(0x000000f0)
+#define AIFSN_CSR_AIFSN2		FIELD32(0x00000f00)
+#define AIFSN_CSR_AIFSN3		FIELD32(0x0000f000)
+
+/*
+ * CWMIN_CSR: CWmin for each EDCA AC.
+ * CWMIN0: For AC_BK.
+ * CWMIN1: For AC_BE.
+ * CWMIN2: For AC_VI.
+ * CWMIN3: For AC_VO.
+ */
+#define CWMIN_CSR			0x3424
+#define CWMIN_CSR_CWMIN0		FIELD32(0x0000000f)
+#define CWMIN_CSR_CWMIN1		FIELD32(0x000000f0)
+#define CWMIN_CSR_CWMIN2		FIELD32(0x00000f00)
+#define CWMIN_CSR_CWMIN3		FIELD32(0x0000f000)
+
+/*
+ * CWMAX_CSR: CWmax for each EDCA AC.
+ * CWMAX0: For AC_BK.
+ * CWMAX1: For AC_BE.
+ * CWMAX2: For AC_VI.
+ * CWMAX3: For AC_VO.
+ */
+#define CWMAX_CSR			0x3428
+#define CWMAX_CSR_CWMAX0		FIELD32(0x0000000f)
+#define CWMAX_CSR_CWMAX1		FIELD32(0x000000f0)
+#define CWMAX_CSR_CWMAX2		FIELD32(0x00000f00)
+#define CWMAX_CSR_CWMAX3		FIELD32(0x0000f000)
+
+/*
+ * TX_DMA_DST_CSR
+ */
+#define TX_DMA_DST_CSR			0x342c
+
+/*
+ * TX_CNTL_CSR: KICK/Abort TX.
+ * KICK_TX_AC0: For AC_BK.
+ * KICK_TX_AC1: For AC_BE.
+ * KICK_TX_AC2: For AC_VI.
+ * KICK_TX_AC3: For AC_VO.
+ * ABORT_TX_AC0: For AC_BK.
+ * ABORT_TX_AC1: For AC_BE.
+ * ABORT_TX_AC2: For AC_VI.
+ * ABORT_TX_AC3: For AC_VO.
+ */
+#define TX_CNTL_CSR			0x3430
+#define TX_CNTL_CSR_KICK_TX_AC0		FIELD32(0x00000001)
+#define TX_CNTL_CSR_KICK_TX_AC1		FIELD32(0x00000002)
+#define TX_CNTL_CSR_KICK_TX_AC2		FIELD32(0x00000004)
+#define TX_CNTL_CSR_KICK_TX_AC3		FIELD32(0x00000008)
+#define TX_CNTL_CSR_KICK_TX_MGMT	FIELD32(0x00000010)
+#define TX_CNTL_CSR_ABORT_TX_AC0	FIELD32(0x00010000)
+#define TX_CNTL_CSR_ABORT_TX_AC1	FIELD32(0x00020000)
+#define TX_CNTL_CSR_ABORT_TX_AC2	FIELD32(0x00040000)
+#define TX_CNTL_CSR_ABORT_TX_AC3	FIELD32(0x00080000)
+#define TX_CNTL_CSR_ABORT_TX_MGMT	FIELD32(0x00100000)
+
+/*
+ * LOAD_TX_RING_CSR
+ */
+#define LOAD_TX_RING_CSR		0x3434
+
+/*
+ * Several read-only registers, for debugging.
+ */
+#define AC0_TXPTR_CSR			0x3438
+#define AC1_TXPTR_CSR			0x343c
+#define AC2_TXPTR_CSR			0x3440
+#define AC3_TXPTR_CSR			0x3444
+#define MGMT_TXPTR_CSR			0x3448
+
+/*
+ * RX_BASE_CSR
+ */
+#define RX_BASE_CSR			0x3450
+#define RX_BASE_CSR_RING_REGISTER	FIELD32(0xffffffff)
+
+/*
+ * RX_RING_CSR.
+ * RXD_SIZE: In unit of 32-bit.
+ */
+#define RX_RING_CSR			0x3454
+#define RX_RING_CSR_RING_SIZE		FIELD32(0x000000ff)
+#define RX_RING_CSR_RXD_SIZE		FIELD32(0x00003f00)
+#define RX_RING_CSR_RXD_WRITEBACK_SIZE	FIELD32(0x00070000)
+
+/*
+ * RX_CNTL_CSR
+ */
+#define RX_CNTL_CSR			0x3458
+
+/*
+ * RXPTR_CSR: Read-only, for debugging.
+ */
+#define RXPTR_CSR			0x345c
+
+/*
+ * PCI_CFG_CSR
+ */
+#define PCI_CFG_CSR			0x3460
+
+/*
+ * BUF_FORMAT_CSR
+ */
+#define BUF_FORMAT_CSR			0x3464
+
+/*
+ * INT_SOURCE_CSR: Interrupt source register.
+ * Write one to clear corresponding bit.
+ */
+#define INT_SOURCE_CSR			0x3468
+#define INT_SOURCE_CSR_TXDONE		FIELD32(0x00000001)
+#define INT_SOURCE_CSR_RXDONE		FIELD32(0x00000002)
+#define INT_SOURCE_CSR_BEACON_DONE	FIELD32(0x00000004)
+#define INT_SOURCE_CSR_TX_ABORT_DONE	FIELD32(0x00000010)
+#define INT_SOURCE_CSR_AC0_DMA_DONE	FIELD32(0x00010000)
+#define INT_SOURCE_CSR_AC1_DMA_DONE	FIELD32(0x00020000)
+#define INT_SOURCE_CSR_AC2_DMA_DONE	FIELD32(0x00040000)
+#define INT_SOURCE_CSR_AC3_DMA_DONE	FIELD32(0x00080000)
+#define INT_SOURCE_CSR_MGMT_DMA_DONE	FIELD32(0x00100000)
+#define INT_SOURCE_CSR_HCCA_DMA_DONE	FIELD32(0x00200000)
+
+/*
+ * INT_MASK_CSR: Interrupt MASK register. 1: the interrupt is mask OFF.
+ * MITIGATION_PERIOD: Interrupt mitigation in unit of 32 PCI clock.
+ */
+#define INT_MASK_CSR			0x346c
+#define INT_MASK_CSR_TXDONE		FIELD32(0x00000001)
+#define INT_MASK_CSR_RXDONE		FIELD32(0x00000002)
+#define INT_MASK_CSR_BEACON_DONE	FIELD32(0x00000004)
+#define INT_MASK_CSR_TX_ABORT_DONE	FIELD32(0x00000010)
+#define INT_MASK_CSR_ENABLE_MITIGATION	FIELD32(0x00000080)
+#define INT_MASK_CSR_MITIGATION_PERIOD	FIELD32(0x0000ff00)
+#define INT_MASK_CSR_AC0_DMA_DONE	FIELD32(0x00010000)
+#define INT_MASK_CSR_AC1_DMA_DONE	FIELD32(0x00020000)
+#define INT_MASK_CSR_AC2_DMA_DONE	FIELD32(0x00040000)
+#define INT_MASK_CSR_AC3_DMA_DONE	FIELD32(0x00080000)
+#define INT_MASK_CSR_MGMT_DMA_DONE	FIELD32(0x00100000)
+#define INT_MASK_CSR_HCCA_DMA_DONE	FIELD32(0x00200000)
+
+/*
+ * E2PROM_CSR: EEPROM control register.
+ * RELOAD: Write 1 to reload eeprom content.
+ * TYPE_93C46: 1: 93c46, 0:93c66.
+ * LOAD_STATUS: 1:loading, 0:done.
+ */
+#define E2PROM_CSR			0x3470
+#define E2PROM_CSR_RELOAD		FIELD32(0x00000001)
+#define E2PROM_CSR_DATA_CLOCK		FIELD32(0x00000002)
+#define E2PROM_CSR_CHIP_SELECT		FIELD32(0x00000004)
+#define E2PROM_CSR_DATA_IN		FIELD32(0x00000008)
+#define E2PROM_CSR_DATA_OUT		FIELD32(0x00000010)
+#define E2PROM_CSR_TYPE_93C46		FIELD32(0x00000020)
+#define E2PROM_CSR_LOAD_STATUS		FIELD32(0x00000040)
+
+/*
+ * AC_TXOP_CSR0: AC_BK/AC_BE TXOP register.
+ * AC0_TX_OP: For AC_BK, in unit of 32us.
+ * AC1_TX_OP: For AC_BE, in unit of 32us.
+ */
+#define AC_TXOP_CSR0			0x3474
+#define AC_TXOP_CSR0_AC0_TX_OP		FIELD32(0x0000ffff)
+#define AC_TXOP_CSR0_AC1_TX_OP		FIELD32(0xffff0000)
+
+/*
+ * AC_TXOP_CSR1: AC_VO/AC_VI TXOP register.
+ * AC2_TX_OP: For AC_VI, in unit of 32us.
+ * AC3_TX_OP: For AC_VO, in unit of 32us.
+ */
+#define AC_TXOP_CSR1			0x3478
+#define AC_TXOP_CSR1_AC2_TX_OP		FIELD32(0x0000ffff)
+#define AC_TXOP_CSR1_AC3_TX_OP		FIELD32(0xffff0000)
+
+/*
+ * DMA_STATUS_CSR
+ */
+#define DMA_STATUS_CSR			0x3480
+
+/*
+ * TEST_MODE_CSR
+ */
+#define TEST_MODE_CSR			0x3484
+
+/*
+ * UART0_TX_CSR
+ */
+#define UART0_TX_CSR			0x3488
+
+/*
+ * UART0_RX_CSR
+ */
+#define UART0_RX_CSR			0x348c
+
+/*
+ * UART0_FRAME_CSR
+ */
+#define UART0_FRAME_CSR			0x3490
+
+/*
+ * UART0_BUFFER_CSR
+ */
+#define UART0_BUFFER_CSR		0x3494
+
+/*
+ * IO_CNTL_CSR
+ */
+#define IO_CNTL_CSR			0x3498
+
+/*
+ * UART_INT_SOURCE_CSR
+ */
+#define UART_INT_SOURCE_CSR		0x34a8
+
+/*
+ * UART_INT_MASK_CSR
+ */
+#define UART_INT_MASK_CSR		0x34ac
+
+/*
+ * PBF_QUEUE_CSR
+ */
+#define PBF_QUEUE_CSR			0x34b0
+
+/*
+ * Firmware DMA registers.
+ * Firmware DMA registers are dedicated for MCU usage
+ * and should not be touched by host driver.
+ * Therefore we skip the definition of these registers.
+ */
+#define FW_TX_BASE_CSR			0x34c0
+#define FW_TX_START_CSR			0x34c4
+#define FW_TX_LAST_CSR			0x34c8
+#define FW_MODE_CNTL_CSR		0x34cc
+#define FW_TXPTR_CSR			0x34d0
+
+/*
+ * 8051 firmware image.
+ */
+#define FIRMWARE_RT2561			"rt2561.bin"
+#define FIRMWARE_RT2561s		"rt2561s.bin"
+#define FIRMWARE_RT2661			"rt2661.bin"
+#define FIRMWARE_IMAGE_BASE		0x4000
+
+/*
+ * RF registers
+ */
+#define RF3_TXPOWER			FIELD32(0x00003e00)
+#define RF4_FREQ_OFFSET			FIELD32(0x0003f000)
+
+/*
+ * EEPROM content.
+ * The wordsize of the EEPROM is 16 bits.
+ */
+
+/*
+ * HW MAC address.
+ */
+#define EEPROM_MAC_ADDR_0		0x0002
+#define EEPROM_MAC_ADDR_BYTE0		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE1		FIELD16(0xff00)
+#define EEPROM_MAC_ADDR1		0x0004
+#define EEPROM_MAC_ADDR_BYTE2		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE3		FIELD16(0xff00)
+#define EEPROM_MAC_ADDR_2		0x0006
+#define EEPROM_MAC_ADDR_BYTE4		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE5		FIELD16(0xff00)
+
+/*
+ * EEPROM antenna.
+ * ANTENNA_NUM: Number of antenna's.
+ * TX_DEFAULT: Default antenna 0: diversity, 1: A, 2: B.
+ * RX_DEFAULT: Default antenna 0: diversity, 1: A, 2: B.
+ * FRAME_TYPE: 0: DPDT , 1: SPDT , noted this bit is valid for g only.
+ * DYN_TXAGC: Dynamic TX AGC control.
+ * HARDWARE_RADIO: 1: Hardware controlled radio. Read GPIO0.
+ * RF_TYPE: Rf_type of this adapter.
+ */
+#define EEPROM_ANTENNA			0x0010
+#define EEPROM_ANTENNA_NUM		FIELD16(0x0003)
+#define EEPROM_ANTENNA_TX_DEFAULT	FIELD16(0x000c)
+#define EEPROM_ANTENNA_RX_DEFAULT	FIELD16(0x0030)
+#define EEPROM_ANTENNA_FRAME_TYPE	FIELD16(0x0040)
+#define EEPROM_ANTENNA_DYN_TXAGC	FIELD16(0x0200)
+#define EEPROM_ANTENNA_HARDWARE_RADIO	FIELD16(0x0400)
+#define EEPROM_ANTENNA_RF_TYPE		FIELD16(0xf800)
+
+/*
+ * EEPROM NIC config.
+ * ENABLE_DIVERSITY: 1:enable, 0:disable.
+ * EXTERNAL_LNA_BG: External LNA enable for 2.4G.
+ * CARDBUS_ACCEL: 0:enable, 1:disable.
+ * EXTERNAL_LNA_A: External LNA enable for 5G.
+ */
+#define EEPROM_NIC			0x0011
+#define EEPROM_NIC_ENABLE_DIVERSITY	FIELD16(0x0001)
+#define EEPROM_NIC_TX_DIVERSITY		FIELD16(0x0002)
+#define EEPROM_NIC_TX_RX_FIXED		FIELD16(0x000c)
+#define EEPROM_NIC_EXTERNAL_LNA_BG	FIELD16(0x0010)
+#define EEPROM_NIC_CARDBUS_ACCEL	FIELD16(0x0020)
+#define EEPROM_NIC_EXTERNAL_LNA_A	FIELD16(0x0040)
+
+/*
+ * EEPROM geography.
+ * GEO_A: Default geographical setting for 5GHz band
+ * GEO: Default geographical setting.
+ */
+#define EEPROM_GEOGRAPHY		0x0012
+#define EEPROM_GEOGRAPHY_GEO_A		FIELD16(0x00ff)
+#define EEPROM_GEOGRAPHY_GEO		FIELD16(0xff00)
+
+/*
+ * EEPROM BBP.
+ */
+#define EEPROM_BBP_START		0x0013
+#define EEPROM_BBP_SIZE			16
+#define EEPROM_BBP_VALUE		FIELD16(0x00ff)
+#define EEPROM_BBP_REG_ID		FIELD16(0xff00)
+
+/*
+ * EEPROM TXPOWER 802.11G
+ */
+#define EEPROM_TXPOWER_G_START		0x0023
+#define EEPROM_TXPOWER_G_SIZE		7
+#define EEPROM_TXPOWER_G_1		FIELD16(0x00ff)
+#define EEPROM_TXPOWER_G_2		FIELD16(0xff00)
+
+/*
+ * EEPROM Frequency
+ */
+#define EEPROM_FREQ			0x002f
+#define EEPROM_FREQ_OFFSET		FIELD16(0x00ff)
+#define EEPROM_FREQ_SEQ_MASK		FIELD16(0xff00)
+#define EEPROM_FREQ_SEQ			FIELD16(0x0300)
+
+/*
+ * EEPROM LED.
+ * POLARITY_RDY_G: Polarity RDY_G setting.
+ * POLARITY_RDY_A: Polarity RDY_A setting.
+ * POLARITY_ACT: Polarity ACT setting.
+ * POLARITY_GPIO_0: Polarity GPIO0 setting.
+ * POLARITY_GPIO_1: Polarity GPIO1 setting.
+ * POLARITY_GPIO_2: Polarity GPIO2 setting.
+ * POLARITY_GPIO_3: Polarity GPIO3 setting.
+ * POLARITY_GPIO_4: Polarity GPIO4 setting.
+ * LED_MODE: Led mode.
+ */
+#define EEPROM_LED			0x0030
+#define EEPROM_LED_POLARITY_RDY_G	FIELD16(0x0001)
+#define EEPROM_LED_POLARITY_RDY_A	FIELD16(0x0002)
+#define EEPROM_LED_POLARITY_ACT		FIELD16(0x0004)
+#define EEPROM_LED_POLARITY_GPIO_0	FIELD16(0x0008)
+#define EEPROM_LED_POLARITY_GPIO_1	FIELD16(0x0010)
+#define EEPROM_LED_POLARITY_GPIO_2	FIELD16(0x0020)
+#define EEPROM_LED_POLARITY_GPIO_3	FIELD16(0x0040)
+#define EEPROM_LED_POLARITY_GPIO_4	FIELD16(0x0080)
+#define EEPROM_LED_LED_MODE		FIELD16(0x1f00)
+
+/*
+ * EEPROM TXPOWER 802.11A
+ */
+#define EEPROM_TXPOWER_A_START		0x0031
+#define EEPROM_TXPOWER_A_SIZE		12
+#define EEPROM_TXPOWER_A_1		FIELD16(0x00ff)
+#define EEPROM_TXPOWER_A_2		FIELD16(0xff00)
+
+/*
+ * BBP content.
+ * The wordsize of the BBP is 8 bits.
+ */
+
+/*
+ * BBP_R2
+ */
+#define BBP_R2_BG_MODE			FIELD8(0x20)
+
+/*
+ * BBP_R3
+ */
+#define BBP_R3_SMART_MODE		FIELD8(0x01)
+
+/*
+ * BBP_R4: RX antenna control
+ * FRAME_END: 1 - DPDT, 0 - SPDT (Only valid for 802.11G, RF2527 & RF2529)
+ */
+#define BBP_R4_RX_ANTENNA		FIELD8(0x03)
+#define BBP_R4_RX_FRAME_END		FIELD8(0x10)
+#define BBP_R4_RX_BG_MODE		FIELD8(0x20)
+
+/*
+ * BBP_R77
+ */
+#define BBP_R77_PAIR			FIELD8(0x03)
+
+/*
+ * MCU mailbox commands.
+ */
+#define MCU_SLEEP			0x30
+#define MCU_WAKEUP			0x31
+#define MCU_LED				0x50
+#define MCU_LED_STRENGTH		0x52
+
+/*
+ * DMA descriptor defines.
+ */
+#define TXD_DESC_SIZE			( 16 * sizeof(struct data_desc) )
+#define RXD_DESC_SIZE			( 16 * sizeof(struct data_desc) )
+
+/*
+ * TX descriptor format for TX, PRIO and Beacon Ring.
+ */
+
+/*
+ * Word0
+ * TKIP_MIC: ASIC appends TKIP MIC if TKIP is used.
+ * KEY_TABLE: Use per-client pairwise KEY table.
+ * KEY_INDEX:
+ * Key index (0~31) to the pairwise KEY table.
+ * 0~3 to shared KEY table 0 (BSS0).
+ * 4~7 to shared KEY table 1 (BSS1).
+ * 8~11 to shared KEY table 2 (BSS2).
+ * 12~15 to shared KEY table 3 (BSS3).
+ * BURST: Next frame belongs to same "burst" event.
+ */
+#define TXD_W0_OWNER_NIC		FIELD32(0x00000001)
+#define TXD_W0_VALID			FIELD32(0x00000002)
+#define TXD_W0_MORE_FRAG		FIELD32(0x00000004)
+#define TXD_W0_ACK			FIELD32(0x00000008)
+#define TXD_W0_TIMESTAMP		FIELD32(0x00000010)
+#define TXD_W0_OFDM			FIELD32(0x00000020)
+#define TXD_W0_IFS			FIELD32(0x00000040)
+#define TXD_W0_RETRY_MODE		FIELD32(0x00000080)
+#define TXD_W0_TKIP_MIC			FIELD32(0x00000100)
+#define TXD_W0_KEY_TABLE		FIELD32(0x00000200)
+#define TXD_W0_KEY_INDEX		FIELD32(0x0000fc00)
+#define TXD_W0_DATABYTE_COUNT		FIELD32(0x0fff0000)
+#define TXD_W0_BURST			FIELD32(0x10000000)
+#define TXD_W0_CIPHER_ALG		FIELD32(0xe0000000)
+
+/*
+ * Word1
+ * HOST_Q_ID: EDCA/HCCA queue ID.
+ * HW_SEQUENCE: MAC overwrites the frame sequence number.
+ * BUFFER_COUNT: Number of buffers in this TXD.
+ */
+#define TXD_W1_HOST_Q_ID		FIELD32(0x0000000f)
+#define TXD_W1_AIFSN			FIELD32(0x000000f0)
+#define TXD_W1_CWMIN			FIELD32(0x00000f00)
+#define TXD_W1_CWMAX			FIELD32(0x0000f000)
+#define TXD_W1_IV_OFFSET		FIELD32(0x003f0000)
+#define TXD_W1_PIGGY_BACK		FIELD32(0x01000000)
+#define TXD_W1_HW_SEQUENCE		FIELD32(0x10000000)
+#define TXD_W1_BUFFER_COUNT		FIELD32(0xe0000000)
+
+/*
+ * Word2: PLCP information
+ */
+#define TXD_W2_PLCP_SIGNAL		FIELD32(0x000000ff)
+#define TXD_W2_PLCP_SERVICE		FIELD32(0x0000ff00)
+#define TXD_W2_PLCP_LENGTH_LOW		FIELD32(0x00ff0000)
+#define TXD_W2_PLCP_LENGTH_HIGH		FIELD32(0xff000000)
+
+/*
+ * Word3
+ */
+#define TXD_W3_IV			FIELD32(0xffffffff)
+
+/*
+ * Word4
+ */
+#define TXD_W4_EIV			FIELD32(0xffffffff)
+
+/*
+ * Word5
+ * FRAME_OFFSET: Frame start offset inside ASIC TXFIFO (after TXINFO field).
+ * TXD_W5_PID_SUBTYPE: Driver assigned packet ID index for txdone handler.
+ * TXD_W5_PID_TYPE: Driver assigned packet ID type for txdone handler.
+ * WAITING_DMA_DONE_INT: TXD been filled with data
+ * and waiting for TxDoneISR housekeeping.
+ */
+#define TXD_W5_FRAME_OFFSET		FIELD32(0x000000ff)
+#define TXD_W5_PID_SUBTYPE		FIELD32(0x00001f00)
+#define TXD_W5_PID_TYPE			FIELD32(0x0000e000)
+#define TXD_W5_TX_POWER			FIELD32(0x00ff0000)
+#define TXD_W5_WAITING_DMA_DONE_INT	FIELD32(0x01000000)
+
+/*
+ * the above 24-byte is called TXINFO and will be DMAed to MAC block
+ * through TXFIFO. MAC block use this TXINFO to control the transmission
+ * behavior of this frame.
+ * The following fields are not used by MAC block.
+ * They are used by DMA block and HOST driver only.
+ * Once a frame has been DMA to ASIC, all the following fields are useless
+ * to ASIC.
+ */
+
+/*
+ * Word6-10: Buffer physical address
+ */
+#define TXD_W6_BUFFER_PHYSICAL_ADDRESS	FIELD32(0xffffffff)
+#define TXD_W7_BUFFER_PHYSICAL_ADDRESS	FIELD32(0xffffffff)
+#define TXD_W8_BUFFER_PHYSICAL_ADDRESS	FIELD32(0xffffffff)
+#define TXD_W9_BUFFER_PHYSICAL_ADDRESS	FIELD32(0xffffffff)
+#define TXD_W10_BUFFER_PHYSICAL_ADDRESS	FIELD32(0xffffffff)
+
+/*
+ * Word11-13: Buffer length
+ */
+#define TXD_W11_BUFFER_LENGTH0		FIELD32(0x00000fff)
+#define TXD_W11_BUFFER_LENGTH1		FIELD32(0x0fff0000)
+#define TXD_W12_BUFFER_LENGTH2		FIELD32(0x00000fff)
+#define TXD_W12_BUFFER_LENGTH3		FIELD32(0x0fff0000)
+#define TXD_W13_BUFFER_LENGTH4		FIELD32(0x00000fff)
+
+/*
+ * Word14
+ */
+#define TXD_W14_SK_BUFFER		FIELD32(0xffffffff)
+
+/*
+ * Word15
+ */
+#define TXD_W15_NEXT_SK_BUFFER		FIELD32(0xffffffff)
+
+/*
+ * RX descriptor format for RX Ring.
+ */
+
+/*
+ * Word0
+ * CIPHER_ERROR: 1:ICV error, 2:MIC error, 3:invalid key.
+ * KEY_INDEX: Decryption key actually used.
+ */
+#define RXD_W0_OWNER_NIC		FIELD32(0x00000001)
+#define RXD_W0_DROP			FIELD32(0x00000002)
+#define RXD_W0_UNICAST_TO_ME		FIELD32(0x00000004)
+#define RXD_W0_MULTICAST		FIELD32(0x00000008)
+#define RXD_W0_BROADCAST		FIELD32(0x00000010)
+#define RXD_W0_MY_BSS			FIELD32(0x00000020)
+#define RXD_W0_CRC			FIELD32(0x00000040)
+#define RXD_W0_OFDM			FIELD32(0x00000080)
+#define RXD_W0_CIPHER_ERROR		FIELD32(0x00000300)
+#define RXD_W0_KEY_INDEX		FIELD32(0x0000fc00)
+#define RXD_W0_DATABYTE_COUNT		FIELD32(0x0fff0000)
+#define RXD_W0_CIPHER_ALG		FIELD32(0xe0000000)
+
+/*
+ * Word1
+ * SIGNAL: RX raw data rate reported by BBP.
+ * RSSI: RSSI reported by BBP.
+ */
+#define RXD_W1_SIGNAL			FIELD32(0x000000ff)
+#define RXD_W1_RSSI			FIELD32(0x0000ff00)
+#define RXD_W1_FRAME_OFFSET		FIELD32(0x7f000000)
+
+/*
+ * Word2
+ * IV: Received IV of originally encrypted.
+ */
+#define RXD_W2_IV			FIELD32(0xffffffff)
+
+/*
+ * Word3
+ * EIV: Received EIV of originally encrypted.
+ */
+#define RXD_W3_EIV			FIELD32(0xffffffff)
+
+/*
+ * Word4
+ */
+#define RXD_W4_RESERVED			FIELD32(0xffffffff)
+
+/*
+ * the above 20-byte is called RXINFO and will be DMAed to MAC RX block
+ * and passed to the HOST driver.
+ * The following fields are for DMA block and HOST usage only.
+ * Can't be touched by ASIC MAC block.
+ */
+
+/*
+ * Word5
+ */
+#define RXD_W5_BUFFER_PHYSICAL_ADDRESS	FIELD32(0xffffffff)
+
+/*
+ * Word6-15: Reserved
+ */
+#define RXD_W6_RESERVED			FIELD32(0xffffffff)
+#define RXD_W7_RESERVED			FIELD32(0xffffffff)
+#define RXD_W8_RESERVED			FIELD32(0xffffffff)
+#define RXD_W9_RESERVED			FIELD32(0xffffffff)
+#define RXD_W10_RESERVED		FIELD32(0xffffffff)
+#define RXD_W11_RESERVED		FIELD32(0xffffffff)
+#define RXD_W12_RESERVED		FIELD32(0xffffffff)
+#define RXD_W13_RESERVED		FIELD32(0xffffffff)
+#define RXD_W14_RESERVED		FIELD32(0xffffffff)
+#define RXD_W15_RESERVED		FIELD32(0xffffffff)
+
+/*
+ * Macro's for converting txpower from EEPROM to dscape value
+ * and from dscape value to register value.
+ */
+#define MIN_TXPOWER	0
+#define MAX_TXPOWER	31
+#define DEFAULT_TXPOWER	24
+
+#define TXPOWER_FROM_DEV(__txpower)		\
+({						\
+	((__txpower) > MAX_TXPOWER) ?		\
+		DEFAULT_TXPOWER : (__txpower);	\
+})
+
+#define TXPOWER_TO_DEV(__txpower)			\
+({							\
+	((__txpower) <= MIN_TXPOWER) ? MIN_TXPOWER :	\
+	(((__txpower) >= MAX_TXPOWER) ? MAX_TXPOWER :	\
+	(__txpower));					\
+})
+
+#endif /* RT61PCI_H */
diff --git a/package/rt2x00/src/rt73usb.c b/package/rt2x00/src/rt73usb.c
new file mode 100644
index 0000000..04261fa
--- /dev/null
+++ b/package/rt2x00/src/rt73usb.c
@@ -0,0 +1,1896 @@
+/*
+	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: rt73usb
+	Abstract: rt73usb device specific routines.
+	Supported chipsets: rt2571W & rt2671.
+ */
+
+/*
+ * Set enviroment defines for rt2x00.h
+ */
+#define DRV_NAME "rt73usb"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/usb.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+
+#include "rt2x00.h"
+#include "rt2x00usb.h"
+#include "rt73usb.h"
+
+/*
+ * Register access.
+ * All access to the CSR registers will go through the methods
+ * rt73usb_register_read and rt73usb_register_write.
+ * BBP and RF register require indirect register access,
+ * and use the CSR registers BBPCSR and RFCSR to achieve this.
+ * These indirect registers work with busy bits,
+ * and we will try maximal REGISTER_BUSY_COUNT times to access
+ * the register while taking a REGISTER_BUSY_DELAY us delay
+ * between each attampt. When the busy bit is still set at that time,
+ * the access attempt is considered to have failed,
+ * and we will print an error.
+ */
+static inline void rt73usb_register_read(
+	const struct rt2x00_dev *rt2x00dev,
+	const u16 offset, u32 *value)
+{
+	__le32 reg;
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_MULTI_READ, USB_VENDOR_REQUEST_IN,
+		offset, 0x00, &reg, sizeof(u32), REGISTER_TIMEOUT);
+	*value = le32_to_cpu(reg);
+}
+
+static inline void rt73usb_register_multiread(
+	const struct rt2x00_dev *rt2x00dev,
+	const u16 offset, void *value, const u32 length)
+{
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_MULTI_READ, USB_VENDOR_REQUEST_IN,
+		offset, 0x00, value, length,
+		REGISTER_TIMEOUT * (length / sizeof(u32)));
+}
+
+static inline void rt73usb_register_write(
+	const struct rt2x00_dev *rt2x00dev,
+	const u16 offset, u32 value)
+{
+	__le32 reg = cpu_to_le32(value);
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_MULTI_WRITE, USB_VENDOR_REQUEST_OUT,
+		offset, 0x00, &reg, sizeof(u32), REGISTER_TIMEOUT);
+}
+
+static inline void rt73usb_register_multiwrite(
+	const struct rt2x00_dev *rt2x00dev,
+	const u16 offset, void *value, const u32 length)
+{
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_MULTI_WRITE, USB_VENDOR_REQUEST_OUT,
+		offset, 0x00, value, length,
+		REGISTER_TIMEOUT * (length / sizeof(u32)));
+}
+
+static u32 rt73usb_bbp_check(const struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+	unsigned int i;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt73usb_register_read(rt2x00dev, PHY_CSR3, &reg);
+		if (!rt2x00_get_field32(reg, PHY_CSR3_BUSY))
+			break;
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	return reg;
+}
+
+static void rt73usb_bbp_write(const struct rt2x00_dev *rt2x00dev,
+	const u8 reg_id, const u8 value)
+{
+	u32 reg;
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt73usb_bbp_check(rt2x00dev);
+	if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
+		ERROR(rt2x00dev, "PHY_CSR3 register busy. Write failed.\n");
+		return;
+	}
+
+	/*
+	 * Write the data into the BBP.
+	 */
+	reg = 0;
+	rt2x00_set_field32(&reg, PHY_CSR3_VALUE, value);
+	rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, reg_id);
+	rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
+	rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 0);
+
+	rt73usb_register_write(rt2x00dev, PHY_CSR3, reg);
+}
+
+static void rt73usb_bbp_read(const struct rt2x00_dev *rt2x00dev,
+	const u8 reg_id, u8 *value)
+{
+	u32 reg;
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt73usb_bbp_check(rt2x00dev);
+	if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
+		ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
+		return;
+	}
+
+	/*
+	 * Write the request into the BBP.
+	 */
+	reg =0;
+	rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, reg_id);
+	rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
+	rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 1);
+
+	rt73usb_register_write(rt2x00dev, PHY_CSR3, reg);
+
+	/*
+	 *  Wait until the BBP becomes ready.
+	 */
+	reg = rt73usb_bbp_check(rt2x00dev);
+	if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
+		ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
+		*value = 0xff;
+		return;
+	}
+
+	*value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
+}
+
+static void rt73usb_rf_write(const struct rt2x00_dev *rt2x00dev,
+	const u32 value)
+{
+	u32 reg;
+	unsigned int i;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt73usb_register_read(rt2x00dev, PHY_CSR4, &reg);
+		if (!rt2x00_get_field32(reg, PHY_CSR4_BUSY))
+			goto rf_write;
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	ERROR(rt2x00dev, "PHY_CSR4 register busy. Write failed.\n");
+	return;
+
+rf_write:
+	reg = 0;
+	rt2x00_set_field32(&reg, PHY_CSR4_VALUE, value);
+	rt2x00_set_field32(&reg, PHY_CSR4_NUMBER_OF_BITS, 20);
+	rt2x00_set_field32(&reg, PHY_CSR4_IF_SELECT, 0);
+	rt2x00_set_field32(&reg, PHY_CSR4_BUSY, 1);
+
+	rt73usb_register_write(rt2x00dev, PHY_CSR4, reg);
+}
+
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+#define CSR_OFFSET(__word)	( CSR_REG_BASE + ((__word) * sizeof(u32)) )
+
+static void rt73usb_read_csr(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt73usb_register_read(rt2x00dev, CSR_OFFSET(word), data);
+}
+
+static void rt73usb_write_csr(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt73usb_register_write(rt2x00dev, CSR_OFFSET(word), *((u32*)data));
+}
+
+static void rt73usb_read_eeprom(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00_eeprom_read(rt2x00dev, word, data);
+}
+
+static void rt73usb_write_eeprom(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt2x00_eeprom_write(rt2x00dev, word, *((u16*)data));
+}
+
+static void rt73usb_read_bbp(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt73usb_bbp_read(rt2x00dev, word, data);
+}
+
+static void rt73usb_write_bbp(struct rt2x00_dev *rt2x00dev,
+	const unsigned long word, void *data)
+{
+	rt73usb_bbp_write(rt2x00dev, word, *((u8*)data));
+}
+
+static const struct rt2x00debug rt73usb_rt2x00debug = {
+	.owner 		= THIS_MODULE,
+	.reg_csr	= {
+		.read		= rt73usb_read_csr,
+		.write		= rt73usb_write_csr,
+		.word_size	= sizeof(u32),
+		.word_count	= CSR_REG_SIZE / sizeof(u32),
+	},
+	.reg_eeprom	= {
+		.read		= rt73usb_read_eeprom,
+		.write		= rt73usb_write_eeprom,
+		.word_size	= sizeof(u16),
+		.word_count	= EEPROM_SIZE / sizeof(u16),
+	},
+	.reg_bbp	= {
+		.read		= rt73usb_read_bbp,
+		.write		= rt73usb_write_bbp,
+		.word_size	= sizeof(u8),
+		.word_count	= BBP_SIZE / sizeof(u8),
+	},
+};
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+
+/*
+ * Configuration handlers.
+ */
+static void rt73usb_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
+{
+	u32 reg[2];
+
+	memset(&reg, 0, sizeof(reg));
+	memcpy(&reg, bssid, ETH_ALEN);
+
+	rt2x00_set_field32(&reg[1], MAC_CSR5_BSS_ID_MASK, 3);
+
+	/*
+	 * The BSSID is passed to us as an array of bytes,
+	 * that array is little endian, so no need for byte ordering.
+	 */
+	rt73usb_register_multiwrite(rt2x00dev, MAC_CSR4, &reg, sizeof(reg));
+}
+
+static void rt73usb_config_promisc(struct rt2x00_dev *rt2x00dev,
+	const int promisc)
+{
+	u32 reg;
+
+	rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME, !promisc);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
+}
+
+static void rt73usb_config_type(struct rt2x00_dev *rt2x00dev,
+	const int type)
+{
+	u32 reg;
+
+	rt73usb_register_write(rt2x00dev, TXRX_CSR9, 0);
+
+	/*
+	 * Apply hardware packet filter.
+	 */
+	rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
+
+	if (!is_monitor_present(&rt2x00dev->interface) &&
+	    (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_STA))
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS, 1);
+	else
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS, 0);
+
+	rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC, 1);
+	if (is_monitor_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 0);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 0);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 0);
+	} else {
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 1);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 1);
+		rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
+	}
+
+	rt2x00_set_field32(&reg, TXRX_CSR0_DROP_MULTICAST, 0);
+	rt2x00_set_field32(&reg, TXRX_CSR0_DROP_BORADCAST, 0);
+
+	rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
+
+	/*
+	 * Enable synchronisation.
+	 */
+	rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
+	if (is_interface_present(&rt2x00dev->interface)) {
+		rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
+		rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
+	}
+
+	rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
+	if (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_AP)
+		rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 2);
+	else if (type == IEEE80211_IF_TYPE_STA)
+		rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 1);
+	else if (is_monitor_present(&rt2x00dev->interface) &&
+		 !is_interface_present(&rt2x00dev->interface))
+		rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 0);
+
+	rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
+}
+
+static void rt73usb_config_channel(struct rt2x00_dev *rt2x00dev,
+	const int value, const int channel, const int txpower)
+{
+	u8 reg = 0;
+	u32 rf1 = rt2x00dev->rf1;
+	u32 rf2 = value;
+	u32 rf3 = rt2x00dev->rf3;
+	u32 rf4 = 0;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF2527))
+		rf2 |= 0x00004000;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF5225)) {
+		if (channel <= 14)
+			rf3 = 0x00068455;
+		else if (channel >= 36 && channel <= 48)
+			rf3 = 0x0009be55;
+		else if (channel >= 52 && channel <= 64)
+			rf3 = 0x0009ae55;
+		else if (channel >= 100 && channel <= 112)
+			rf3 = 0x000bae55;
+		else
+			rf3 = 0x000bbe55;
+	}
+
+	if (channel < 14) {
+		if (channel & 0x01)
+			rf4 = 0x000fea0b;
+		else
+			rf4 = 0x000fea1f;
+	} else if (channel == 14) {
+		rf4 = 0x000fea13;
+	} else {
+		switch (channel) {
+			case 36:
+			case 56:
+			case 116:
+			case 136:
+				rf4 = 0x000fea23;
+				break;
+			case 40:
+			case 60:
+			case 100:
+			case 120:
+			case 140:
+				rf4 = 0x000fea03;
+				break;
+			case 44:
+			case 64:
+			case 104:
+			case 124:
+				rf4 = 0x000fea0b;
+				break;
+			case 48:
+			case 108:
+			case 128:
+				rf4 = 0x000fea13;
+				break;
+			case 52:
+			case 112:
+			case 132:
+				rf4 = 0x000fea1b;
+				break;
+			case 149:
+				rf4 = 0x000fea1f;
+				break;
+			case 153:
+				rf4 = 0x000fea27;
+				break;
+			case 157:
+				rf4 = 0x000fea07;
+				break;
+			case 161:
+				rf4 = 0x000fea0f;
+				break;
+			case 165:
+				rf4 = 0x000fea17;
+				break;
+		}
+	}
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF2527) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF5225))
+		rf4 |= 0x00010000;
+
+	/*
+	 * Set TXpower.
+	 */
+	rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
+
+	/*
+	 * Set Frequency offset.
+	 */
+	rt2x00_set_field32(&rf4, RF4_FREQ_OFFSET, rt2x00dev->freq_offset);
+
+	rt73usb_bbp_read(rt2x00dev, 3, &reg);
+	if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF2527))
+		reg &= ~0x01;
+	else
+		reg |= 0x01;
+	rt73usb_bbp_write(rt2x00dev, 3, reg);
+
+	rt73usb_rf_write(rt2x00dev, rf1);
+	rt73usb_rf_write(rt2x00dev, rf2);
+	rt73usb_rf_write(rt2x00dev, rf3 & ~0x00000004);
+	rt73usb_rf_write(rt2x00dev, rf4);
+
+	rt73usb_rf_write(rt2x00dev, rf1);
+	rt73usb_rf_write(rt2x00dev, rf2);
+	rt73usb_rf_write(rt2x00dev, rf3 | 0x00000004);
+	rt73usb_rf_write(rt2x00dev, rf4);
+
+	rt73usb_rf_write(rt2x00dev, rf1);
+	rt73usb_rf_write(rt2x00dev, rf2);
+	rt73usb_rf_write(rt2x00dev, rf3 & ~0x00000004);
+	rt73usb_rf_write(rt2x00dev, rf4);
+
+	msleep(1);
+
+	/*
+	 * Update rf fields
+	 */
+	rt2x00dev->rf1 = rf1;
+	rt2x00dev->rf2 = rf2;
+	rt2x00dev->rf3 = rf3;
+	rt2x00dev->rf4 = rf4;
+	rt2x00dev->tx_power = txpower;
+}
+
+static void rt73usb_config_txpower(struct rt2x00_dev *rt2x00dev,
+	const int txpower)
+{
+	rt2x00_set_field32(&rt2x00dev->rf3, RF3_TXPOWER,
+		TXPOWER_TO_DEV(txpower));
+
+	rt73usb_rf_write(rt2x00dev, rt2x00dev->rf1);
+	rt73usb_rf_write(rt2x00dev, rt2x00dev->rf2);
+	rt73usb_rf_write(rt2x00dev, rt2x00dev->rf3 & ~0x00000004);
+	rt73usb_rf_write(rt2x00dev, rt2x00dev->rf4);
+
+	rt73usb_rf_write(rt2x00dev, rt2x00dev->rf1);
+	rt73usb_rf_write(rt2x00dev, rt2x00dev->rf2);
+	rt73usb_rf_write(rt2x00dev, rt2x00dev->rf3 | 0x00000004);
+	rt73usb_rf_write(rt2x00dev, rt2x00dev->rf4);
+
+	rt73usb_rf_write(rt2x00dev, rt2x00dev->rf1);
+	rt73usb_rf_write(rt2x00dev, rt2x00dev->rf2);
+	rt73usb_rf_write(rt2x00dev, rt2x00dev->rf3 & ~0x00000004);
+	rt73usb_rf_write(rt2x00dev, rt2x00dev->rf4);
+}
+
+static void rt73usb_config_antenna(struct rt2x00_dev *rt2x00dev,
+	const int antenna_tx, const int antenna_rx)
+{
+	u32 reg;
+	u8 r3;
+	u8 r4;
+	u8 r77;
+
+	rt73usb_register_read(rt2x00dev, PHY_CSR0, &reg);
+
+	if (rt2x00dev->curr_hwmode == HWMODE_A) {
+		if (test_bit(CONFIG_EXTERNAL_LNA, &rt2x00dev->flags)) {
+			rt73usb_bbp_write(rt2x00dev, 17, 0x38);
+			rt73usb_bbp_write(rt2x00dev, 96, 0x78);
+			rt73usb_bbp_write(rt2x00dev, 104, 0x48);
+			rt73usb_bbp_write(rt2x00dev, 75, 0x80);
+			rt73usb_bbp_write(rt2x00dev, 86, 0x80);
+			rt73usb_bbp_write(rt2x00dev, 88, 0x80);
+		} else {
+			rt73usb_bbp_write(rt2x00dev, 17, 0x28);
+			rt73usb_bbp_write(rt2x00dev, 96, 0x58);
+			rt73usb_bbp_write(rt2x00dev, 104, 0x38);
+			rt73usb_bbp_write(rt2x00dev, 75, 0xfe);
+			rt73usb_bbp_write(rt2x00dev, 86, 0xfe);
+			rt73usb_bbp_write(rt2x00dev, 88, 0xfe);
+		}
+		rt73usb_bbp_write(rt2x00dev, 35, 0x60);
+		rt73usb_bbp_write(rt2x00dev, 97, 0x58);
+		rt73usb_bbp_write(rt2x00dev, 98, 0x58);
+
+		rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG, 0);
+		rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A, 1);
+	} else {
+		if (test_bit(CONFIG_EXTERNAL_LNA, &rt2x00dev->flags)) {
+			rt73usb_bbp_write(rt2x00dev, 17, 0x30);
+			rt73usb_bbp_write(rt2x00dev, 96, 0x68);
+			rt73usb_bbp_write(rt2x00dev, 104, 0x3c);
+			rt73usb_bbp_write(rt2x00dev, 75, 0x80);
+			rt73usb_bbp_write(rt2x00dev, 86, 0x80);
+			rt73usb_bbp_write(rt2x00dev, 88, 0x80);
+		} else {
+			rt73usb_bbp_write(rt2x00dev, 17, 0x20);
+			rt73usb_bbp_write(rt2x00dev, 96, 0x48);
+			rt73usb_bbp_write(rt2x00dev, 104, 0x2c);
+			rt73usb_bbp_write(rt2x00dev, 75, 0xfe);
+			rt73usb_bbp_write(rt2x00dev, 86, 0xfe);
+			rt73usb_bbp_write(rt2x00dev, 88, 0xfe);
+		}
+		rt73usb_bbp_write(rt2x00dev, 35, 0x50);
+		rt73usb_bbp_write(rt2x00dev, 97, 0x48);
+		rt73usb_bbp_write(rt2x00dev, 98, 0x48);
+
+		rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG, 1);
+		rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A, 0);
+	}
+
+	rt73usb_register_write(rt2x00dev, PHY_CSR0, reg);
+
+	rt73usb_bbp_read(rt2x00dev, 3, &r3);
+	rt73usb_bbp_read(rt2x00dev, 4, &r4);
+	rt73usb_bbp_read(rt2x00dev, 77, &r77);
+
+	rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF5226) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF5225)) {
+		if (antenna_rx == ANTENNA_DIVERSITY) {
+			rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
+			if (rt2x00dev->curr_hwmode != HWMODE_A)
+				rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
+				test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
+		} else if (antenna_rx == ANTENNA_A) {
+			rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
+				test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
+			if (rt2x00dev->curr_hwmode == HWMODE_A)
+				rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
+			else
+				rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
+			rt73usb_bbp_write(rt2x00dev, 77, r77);
+		} else if (antenna_rx == ANTENNA_B) {
+			rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
+				test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
+			if (rt2x00dev->curr_hwmode == HWMODE_A)
+				rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
+			else
+				rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
+			rt73usb_bbp_write(rt2x00dev, 77, r77);
+		}
+	} else if (rt2x00_rf(&rt2x00dev->chip, RF2528) ||
+		   rt2x00_rf(&rt2x00dev->chip, RF2527)) {
+		if (antenna_rx == ANTENNA_DIVERSITY) {
+			rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
+			rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
+				test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
+		} else if (antenna_rx == ANTENNA_A) {
+			rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
+				test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
+			rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
+			rt73usb_bbp_write(rt2x00dev, 77, r77);
+		} else if (antenna_rx == ANTENNA_B) {
+			rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_BG_MODE, 1);
+			rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
+				test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
+			rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
+		}
+	}
+
+	rt73usb_bbp_write(rt2x00dev, 3, r3);
+	rt73usb_bbp_write(rt2x00dev, 4, r4);
+}
+
+static void rt73usb_config_duration(struct rt2x00_dev *rt2x00dev,
+	const int short_slot_time, const int beacon_int)
+{
+	u32 reg;
+
+	rt73usb_register_read(rt2x00dev, MAC_CSR9, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR9_SLOT_TIME,
+		short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME);
+	rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
+
+	rt73usb_register_read(rt2x00dev, MAC_CSR8, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR8_SIFS, SIFS);
+	rt2x00_set_field32(&reg, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
+	rt2x00_set_field32(&reg, MAC_CSR8_EIFS, EIFS);
+	rt73usb_register_write(rt2x00dev, MAC_CSR8, reg);
+
+	rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR0_TSF_OFFSET, IEEE80211_HEADER);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
+
+	rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_ENABLE, 1);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
+
+	rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_INTERVAL, beacon_int * 16);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
+}
+
+static void rt73usb_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
+{
+	struct ieee80211_conf *conf = &rt2x00dev->hw->conf;
+	u32 reg;
+	u32 value;
+	u32 preamble;
+
+	preamble = DEVICE_GET_RATE_FIELD(rate, PREAMBLE)
+		? SHORT_PREAMBLE : PREAMBLE;
+
+	reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATE;
+
+	rt73usb_register_write(rt2x00dev, TXRX_CSR5, reg);
+
+	rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
+	value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
+		 SHORT_DIFS :  DIFS) +
+		PLCP + preamble + get_duration(ACK_SIZE, 10);
+	rt2x00_set_field32(&reg, TXRX_CSR0_RX_ACK_TIMEOUT, value);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
+
+	rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
+	if (preamble == SHORT_PREAMBLE)
+		rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE, 1);
+	else
+		rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE, 0);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
+}
+
+static void rt73usb_config_phymode(struct rt2x00_dev *rt2x00dev,
+	const int phymode)
+{
+	struct ieee80211_hw_mode *mode;
+	struct ieee80211_rate *rate;
+
+	if (phymode == MODE_IEEE80211A)
+		rt2x00dev->curr_hwmode = HWMODE_A;
+	else if (phymode == MODE_IEEE80211B)
+		rt2x00dev->curr_hwmode = HWMODE_B;
+	else
+		rt2x00dev->curr_hwmode = HWMODE_G;
+
+	mode = &rt2x00dev->hwmodes[rt2x00dev->curr_hwmode];
+	rate = &mode->rates[mode->num_rates - 1];
+
+	rt73usb_config_rate(rt2x00dev, rate->val2);
+}
+
+static void rt73usb_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr)
+{
+	u32 reg[2];
+
+	memset(&reg, 0, sizeof(reg));
+	memcpy(&reg, addr, ETH_ALEN);
+
+	rt2x00_set_field32(&reg[1], MAC_CSR3_UNICAST_TO_ME_MASK, 0xff);
+
+	/*
+	 * The MAC address is passed to us as an array of bytes,
+	 * that array is little endian, so no need for byte ordering.
+	 */
+	rt73usb_register_multiwrite(rt2x00dev, MAC_CSR2, &reg, sizeof(reg));
+}
+
+/*
+ * LED functions.
+ */
+static void rt73usb_enable_led(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	rt73usb_register_read(rt2x00dev, MAC_CSR14, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR14_ON_PERIOD, 70);
+	rt2x00_set_field32(&reg, MAC_CSR14_OFF_PERIOD, 30);
+	rt73usb_register_write(rt2x00dev, MAC_CSR14, reg);
+
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_RADIO_STATUS, 1);
+	if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A)
+		rt2x00_set_field16(
+			&rt2x00dev->led_reg, MCU_LEDCS_LINK_A_STATUS, 1);
+	else
+		rt2x00_set_field16(
+			&rt2x00dev->led_reg, MCU_LEDCS_LINK_BG_STATUS, 1);
+
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_LED_CONTROL, USB_VENDOR_REQUEST_OUT,
+		0x00, rt2x00dev->led_reg, NULL, 0, REGISTER_TIMEOUT);
+}
+
+static void rt73usb_disable_led(struct rt2x00_dev *rt2x00dev)
+{
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_RADIO_STATUS, 0);
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LINK_BG_STATUS, 0);
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LINK_A_STATUS, 0);
+
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_LED_CONTROL, USB_VENDOR_REQUEST_OUT,
+		0x00, rt2x00dev->led_reg, NULL, 0, REGISTER_TIMEOUT);
+}
+
+static void rt73usb_activity_led(struct rt2x00_dev *rt2x00dev, char rssi)
+{
+	u32 led;
+
+	if (rt2x00dev->led_mode != LED_MODE_SIGNAL_STRENGTH)
+		return;
+
+	if (rssi <= 30)
+		led = 0;
+	else if (rssi <= 39)
+		led = 1;
+	else if (rssi <= 49)
+		led = 2;
+	else if (rssi <= 53)
+		led = 3;
+	else if (rssi <= 63)
+		led = 4;
+	else
+		led = 5;
+
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_LED_CONTROL, USB_VENDOR_REQUEST_OUT,
+		led, rt2x00dev->led_reg, NULL, 0, REGISTER_TIMEOUT);
+}
+
+/*
+ * Link tuning
+ */
+static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev, int rssi)
+{
+	u32 reg;
+	u8 r17;
+	u8 up_bound;
+	u8 low_bound;
+
+	/*
+	 * Update Led strength
+	 */
+	rt73usb_activity_led(rt2x00dev, rssi);
+
+	rt73usb_bbp_read(rt2x00dev, 17, &r17);
+
+	/*
+	 * Determine r17 bounds.
+	 */
+	if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A) {
+		low_bound = 0x28;
+		up_bound = 0x48;
+
+		if (test_bit(CONFIG_EXTERNAL_LNA, &rt2x00dev->flags)) {
+			low_bound += 0x10;
+			up_bound += 0x10;
+		}
+	} else {
+		if (rssi > -82) {
+			low_bound = 0x1c;
+			up_bound = 0x40;
+		} else if (rssi > -84) {
+			low_bound = 0x1c;
+			up_bound = 0x20;
+		} else {
+			low_bound = 0x1c;
+			up_bound = 0x1c;
+		}
+
+		if (test_bit(CONFIG_EXTERNAL_LNA, &rt2x00dev->flags)) {
+			low_bound += 0x14;
+			up_bound += 0x10;
+		}
+	}
+
+	/*
+	 * Special big-R17 for very short distance
+	 */
+	if (rssi > -35) {
+		if (r17 != 0x60)
+			rt73usb_bbp_write(rt2x00dev, 17, 0x60);
+		return;
+	}
+
+	/*
+	 * Special big-R17 for short distance
+	 */
+	if (rssi >= -58) {
+		if (r17 != up_bound)
+			rt73usb_bbp_write(rt2x00dev, 17, up_bound);
+		return;
+	}
+
+	/*
+	 * Special big-R17 for middle-short distance
+	 */
+	if (rssi >= -66) {
+		low_bound += 0x10;
+		if (r17 != low_bound)
+			rt73usb_bbp_write(rt2x00dev, 17, low_bound);
+		return;
+	}
+
+	/*
+	 * Special mid-R17 for middle distance
+	 */
+	if (rssi >= -74) {
+		if (r17 != (low_bound + 0x10))
+			rt73usb_bbp_write(rt2x00dev, 17, low_bound + 0x08);
+		return;
+	}
+
+	/*
+	 * Special case: Change up_bound based on the rssi.
+	 * Lower up_bound when rssi is weaker then -74 dBm.
+	 */
+	up_bound -= 2 * (-74 - rssi);
+	if (low_bound > up_bound)
+		up_bound = low_bound;
+
+	if (r17 > up_bound) {
+		rt73usb_bbp_write(rt2x00dev, 17, up_bound);
+		return;
+	}
+
+	/*
+	 * r17 does not yet exceed upper limit, continue and base
+	 * the r17 tuning on the false CCA count.
+	 */
+	rt73usb_register_read(rt2x00dev, STA_CSR1, &reg);
+	reg = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
+	rt2x00dev->link.false_cca =
+		rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
+
+	if (rt2x00dev->link.false_cca > 512 && r17 < up_bound) {
+		r17 += 4;
+		if (r17 > up_bound)
+			r17 = up_bound;
+		rt73usb_bbp_write(rt2x00dev, 17, r17);
+	} else if (rt2x00dev->link.false_cca < 100 && r17 > low_bound) {
+		r17 -= 4;
+		if (r17 < low_bound)
+			r17 = low_bound;
+		rt73usb_bbp_write(rt2x00dev, 17, r17);
+	}
+}
+
+/*
+ * Firmware name function.
+ */
+static char *rt73usb_get_fw_name(struct rt2x00_dev *rt2x00dev)
+{
+	return FIRMWARE_RT2571;
+}
+
+/*
+ * Initialization functions.
+ */
+static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev, void *data,
+	const size_t len)
+{
+	unsigned int i;
+	int status;
+	u32 reg;
+	char buf[64];
+	char *ptr = data;
+	int buflen;
+
+	/*
+	 * Wait for stable hardware.
+	 */
+	for (i = 0; i < 100; i++) {
+		rt73usb_register_read(rt2x00dev, MAC_CSR0, &reg);
+		if (reg)
+			break;
+		msleep(1);
+	}
+
+	if (!reg) {
+		ERROR(rt2x00dev, "Unstable hardware.\n");
+		return -EBUSY;
+	}
+
+	/*
+	 * Write firmware to device.
+	 */
+	for (i = 0; i < len; i += sizeof(buf)) {
+		buflen = min(len - i, sizeof(buf));
+		memcpy(buf, ptr, buflen);
+		rt73usb_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE + i,
+			buf, buflen);
+		ptr += buflen;
+	}
+
+	/*
+	 * Send firmware request to device to load firmware,
+	 * we need to specify a long timeout time.
+	 */
+	status = rt2x00usb_vendor_request(rt2x00dev, USB_DEVICE_MODE,
+		USB_VENDOR_REQUEST_OUT, 0x00, USB_MODE_FIRMWARE,
+		NULL, 0, REGISTER_TIMEOUT_FIRMWARE);
+	if (status  < 0) {
+		ERROR(rt2x00dev, "Failed to write Firmware to device.\n");
+		return status;
+	}
+
+	rt73usb_disable_led(rt2x00dev);
+
+	return 0;
+}
+
+static void rt73usb_init_rxring(struct rt2x00_dev *rt2x00dev)
+{
+	struct usb_device *usb_dev =
+		interface_to_usbdev(rt2x00dev_usb(rt2x00dev));
+	unsigned int i;
+
+	for (i = 0; i < rt2x00dev->rx->stats.limit; i++) {
+		usb_fill_bulk_urb(
+			rt2x00dev->rx->entry[i].priv,
+			usb_dev,
+			usb_rcvbulkpipe(usb_dev, 1),
+			rt2x00dev->rx->entry[i].skb->data,
+			rt2x00dev->rx->entry[i].skb->len,
+			rt73usb_interrupt_rxdone,
+			&rt2x00dev->rx->entry[i]);
+	}
+
+	rt2x00_ring_index_clear(rt2x00dev->rx);
+}
+
+static void rt73usb_init_txring(struct rt2x00_dev *rt2x00dev,
+	const int queue)
+{
+	struct data_ring *ring = rt2x00_get_ring(rt2x00dev, queue);
+	unsigned int i;
+
+	for (i = 0; i < ring->stats.limit; i++)
+		ring->entry[i].flags = 0;
+
+	rt2x00_ring_index_clear(ring);
+}
+
+static int rt73usb_init_rings(struct rt2x00_dev *rt2x00dev)
+{
+	rt73usb_init_rxring(rt2x00dev);
+	rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA0);
+	rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA1);
+	rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA2);
+	rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA3);
+	rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA4);
+	rt73usb_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
+
+	return 0;
+}
+
+static int rt73usb_init_registers(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
+		return -EBUSY;
+
+	rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00000718);
+
+	rt73usb_register_write(rt2x00dev, TXRX_CSR0, 0x025eb032);
+
+	rt73usb_register_write(rt2x00dev, TXRX_CSR1, 0x9eaa9eaf);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR2, 0x8a8b8c8d);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR3, 0x00858687);
+
+	rt73usb_register_write(rt2x00dev, TXRX_CSR7, 0x2e31353b);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR8, 0x2a2a2a2c);
+
+	rt73usb_register_write(rt2x00dev, TXRX_CSR15, 0x0000000f);
+
+	rt73usb_register_write(rt2x00dev, MAC_CSR6, 0x00000fff);
+
+	rt73usb_register_write(rt2x00dev, MAC_CSR13, 0x00007f00);
+
+	rt73usb_register_write(rt2x00dev, SEC_CSR0, 0x00000000);
+	rt73usb_register_write(rt2x00dev, SEC_CSR1, 0x00000000);
+	rt73usb_register_write(rt2x00dev, SEC_CSR5, 0x00000000);
+
+	reg = 0x000023b0;
+	if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF2527))
+		rt2x00_set_field32(&reg, PHY_CSR1_RF_RPI, 1);
+	rt73usb_register_write(rt2x00dev, PHY_CSR1, reg);
+
+	rt73usb_register_write(rt2x00dev, PHY_CSR5, 0x00040a06);
+	rt73usb_register_write(rt2x00dev, PHY_CSR6, 0x00080606);
+	rt73usb_register_write(rt2x00dev, PHY_CSR7, 0x00000408);
+
+	rt73usb_register_read(rt2x00dev, AC_TXOP_CSR0, &reg);
+	rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC0_TX_OP, 0);
+	rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC1_TX_OP, 0);
+	rt73usb_register_write(rt2x00dev, AC_TXOP_CSR0, reg);
+
+	rt73usb_register_read(rt2x00dev, AC_TXOP_CSR1, &reg);
+	rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC2_TX_OP, 192);
+	rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC3_TX_OP, 48);
+	rt73usb_register_write(rt2x00dev, AC_TXOP_CSR1, reg);
+
+	rt73usb_register_read(rt2x00dev, MAC_CSR9, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR9_CW_SELECT, 0);
+	rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
+
+	rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR0_AUTO_TX_SEQ, 1);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
+
+	/*
+	 * We must clear the error counters.
+	 * These registers are cleared on read,
+	 * so we may pass a useless variable to store the value.
+	 */
+	rt73usb_register_read(rt2x00dev, STA_CSR0, &reg);
+	rt73usb_register_read(rt2x00dev, STA_CSR1, &reg);
+	rt73usb_register_read(rt2x00dev, STA_CSR2, &reg);
+
+	/*
+	 * Reset MAC and BBP registers.
+	 */
+	reg = 0;
+	rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 1);
+	rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 1);
+	rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
+
+	rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 0);
+	rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 0);
+	rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
+
+	rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR1_HOST_READY, 1);
+	rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
+
+	return 0;
+}
+
+static int rt73usb_init_bbp(struct rt2x00_dev *rt2x00dev)
+{
+	unsigned int i;
+	u16 eeprom;
+	u8 reg_id;
+	u8 value;
+
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt73usb_bbp_read(rt2x00dev, 0, &value);
+		if ((value != 0xff) && (value != 0x00))
+			goto continue_csr_init;
+		NOTICE(rt2x00dev, "Waiting for BBP register.\n");
+		udelay(REGISTER_BUSY_DELAY);
+	}
+
+	ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
+	return -EACCES;
+
+continue_csr_init:
+	rt73usb_bbp_write(rt2x00dev, 3, 0x80);
+	rt73usb_bbp_write(rt2x00dev, 15, 0x30);
+	rt73usb_bbp_write(rt2x00dev, 17, 0x20);
+	rt73usb_bbp_write(rt2x00dev, 21, 0xc8);
+	rt73usb_bbp_write(rt2x00dev, 22, 0x38);
+	rt73usb_bbp_write(rt2x00dev, 23, 0x06);
+	rt73usb_bbp_write(rt2x00dev, 24, 0xfe);
+	rt73usb_bbp_write(rt2x00dev, 25, 0x0a);
+	rt73usb_bbp_write(rt2x00dev, 26, 0x0d);
+	rt73usb_bbp_write(rt2x00dev, 32, 0x0b);
+	rt73usb_bbp_write(rt2x00dev, 34, 0x12);
+	rt73usb_bbp_write(rt2x00dev, 37, 0x07);
+	rt73usb_bbp_write(rt2x00dev, 39, 0xf8);
+	rt73usb_bbp_write(rt2x00dev, 41, 0x60);
+	rt73usb_bbp_write(rt2x00dev, 53, 0x10);
+	rt73usb_bbp_write(rt2x00dev, 54, 0x18);
+	rt73usb_bbp_write(rt2x00dev, 60, 0x10);
+	rt73usb_bbp_write(rt2x00dev, 61, 0x04);
+	rt73usb_bbp_write(rt2x00dev, 62, 0x04);
+	rt73usb_bbp_write(rt2x00dev, 75, 0xfe);
+	rt73usb_bbp_write(rt2x00dev, 86, 0xfe);
+	rt73usb_bbp_write(rt2x00dev, 88, 0xfe);
+	rt73usb_bbp_write(rt2x00dev, 90, 0x0f);
+	rt73usb_bbp_write(rt2x00dev, 99, 0x00);
+	rt73usb_bbp_write(rt2x00dev, 102, 0x16);
+	rt73usb_bbp_write(rt2x00dev, 107, 0x04);
+
+	DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
+	for (i = 0; i < EEPROM_BBP_SIZE; i++) {
+		rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
+
+		if (eeprom != 0xffff && eeprom != 0x0000) {
+			reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
+			value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
+			DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
+				reg_id, value);
+			rt73usb_bbp_write(rt2x00dev, reg_id, value);
+		}
+	}
+	DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
+
+	return 0;
+}
+
+/*
+ * Device state switch handlers.
+ */
+static void rt73usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	u32 reg;
+
+	rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX,
+		state == STATE_RADIO_RX_OFF);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
+}
+
+static int rt73usb_enable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	/*
+	 * Initialize all registers.
+	 */
+	if (rt73usb_init_rings(rt2x00dev) ||
+	    rt73usb_init_registers(rt2x00dev) ||
+	    rt73usb_init_bbp(rt2x00dev)) {
+		ERROR(rt2x00dev, "Register initialization failed.\n");
+		return -EIO;
+	}
+
+	rt2x00usb_enable_radio(rt2x00dev);
+
+	/*
+	 * Enable LED
+	 */
+	rt73usb_enable_led(rt2x00dev);
+
+	return 0;
+}
+
+static void rt73usb_disable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	/*
+	 * Disable LED
+	 */
+	rt73usb_disable_led(rt2x00dev);
+
+	rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
+
+	/*
+	 * Disable synchronisation.
+	 */
+	rt73usb_register_write(rt2x00dev, TXRX_CSR9, 0);
+
+	rt2x00usb_disable_radio(rt2x00dev);
+}
+
+static int rt73usb_set_state(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	u32 reg;
+	unsigned int i;
+	char put_to_sleep;
+	char current_state;
+
+	put_to_sleep = (state != STATE_AWAKE);
+
+	if (!put_to_sleep)
+		rt2x00usb_vendor_request(rt2x00dev,
+			USB_DEVICE_MODE, USB_VENDOR_REQUEST_OUT,
+			0x00, USB_MODE_WAKEUP, NULL, 0, REGISTER_TIMEOUT);
+
+	rt73usb_register_read(rt2x00dev, MAC_CSR12, &reg);
+	rt2x00_set_field32(&reg, MAC_CSR12_FORCE_WAKEUP, !put_to_sleep);
+	rt2x00_set_field32(&reg, MAC_CSR12_PUT_TO_SLEEP, put_to_sleep);
+	rt73usb_register_write(rt2x00dev, MAC_CSR12, reg);
+
+	if (put_to_sleep)
+		rt2x00usb_vendor_request(rt2x00dev,
+			USB_DEVICE_MODE, USB_VENDOR_REQUEST_OUT,
+			0x00, USB_MODE_SLEEP, NULL, 0, REGISTER_TIMEOUT);
+
+	/*
+	 * Device is not guaranteed to be in the requested state yet.
+	 * We must wait until the register indicates that the
+	 * device has entered the correct state.
+	 */
+	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+		rt73usb_register_read(rt2x00dev, MAC_CSR12, &reg);
+		current_state = rt2x00_get_field32(reg,
+			MAC_CSR12_BBP_CURRENT_STATE);
+		if (current_state == !put_to_sleep)
+			return 0;
+		msleep(10);
+	}
+
+	NOTICE(rt2x00dev, "Device failed to enter state %d, "
+		"current device state %d.\n", !put_to_sleep, current_state);
+
+	return -EBUSY;
+}
+
+static int rt73usb_set_device_state(struct rt2x00_dev *rt2x00dev,
+	enum dev_state state)
+{
+	int retval = 0;
+
+	switch (state) {
+		case STATE_RADIO_ON:
+			retval = rt73usb_enable_radio(rt2x00dev);
+		break;
+		case STATE_RADIO_OFF:
+			rt73usb_disable_radio(rt2x00dev);
+		break;
+		case STATE_RADIO_RX_ON:
+		case STATE_RADIO_RX_OFF:
+			rt73usb_toggle_rx(rt2x00dev, state);
+		break;
+		case STATE_DEEP_SLEEP:
+		case STATE_SLEEP:
+		case STATE_STANDBY:
+		case STATE_AWAKE:
+			retval = rt73usb_set_state(rt2x00dev, state);
+		break;
+		default:
+			retval = -ENOTSUPP;
+		break;
+	}
+
+	return retval;
+}
+
+/*
+ * TX descriptor initialization
+ */
+static void rt73usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
+	struct data_entry *entry, struct data_desc *txd,
+	struct data_entry_desc *desc, struct ieee80211_hdr *ieee80211hdr,
+	unsigned int length, struct ieee80211_tx_control *control)
+{
+	u32 word;
+
+	/*
+	 * Start writing the descriptor words.
+	 */
+	rt2x00_desc_read(txd, 1, &word);
+	rt2x00_set_field32(&word, TXD_W1_HOST_Q_ID, desc->queue);
+	rt2x00_set_field32(&word, TXD_W1_AIFSN, entry->ring->tx_params.aifs);
+	rt2x00_set_field32(&word, TXD_W1_CWMIN, entry->ring->tx_params.cw_min);
+	rt2x00_set_field32(&word, TXD_W1_CWMAX, entry->ring->tx_params.cw_max);
+	rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
+	rt2x00_set_field32(&word, TXD_W1_HW_SEQUENCE, 1);
+	rt2x00_desc_write(txd, 1, word);
+
+	rt2x00_desc_read(txd, 2, &word);
+	rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, desc->signal);
+	rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, desc->service);
+	rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, desc->length_low);
+	rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, desc->length_high);
+	rt2x00_desc_write(txd, 2, word);
+
+	rt2x00_desc_read(txd, 5, &word);
+	rt2x00_set_field32(&word, TXD_W5_TX_POWER,
+		TXPOWER_TO_DEV(control->power_level));
+	rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1);
+	rt2x00_desc_write(txd, 5, word);
+
+	rt2x00_desc_read(txd, 0, &word);
+	rt2x00_set_field32(&word, TXD_W0_VALID, 1);
+	rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
+		test_bit(ENTRY_TXD_MORE_FRAG, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_ACK,
+		test_bit(ENTRY_TXD_REQ_ACK, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
+		test_bit(ENTRY_TXD_REQ_TIMESTAMP, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_OFDM,
+		test_bit(ENTRY_TXD_OFDM_RATE, &entry->flags));
+	rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs);
+	rt2x00_set_field32(&word, TXD_W0_RETRY_MODE, 0);
+	rt2x00_set_field32(&word, TXD_W0_TKIP_MIC, 0);
+	rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, length);
+	rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE);
+	rt2x00_desc_write(txd, 0, word);
+}
+
+/*
+ * TX data initialization
+ */
+static void rt73usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev, int queue)
+{
+	u32 reg;
+
+	if (queue != IEEE80211_TX_QUEUE_BEACON)
+		return;
+
+	rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
+	if (!rt2x00_get_field32(reg, TXRX_CSR9_BEACON_GEN)) {
+		rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 1);
+		rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
+	}
+}
+
+/*
+ * Interrupt functions.
+ */
+static void rt73usb_interrupt_rxdone(struct urb *urb)
+{
+	struct data_entry *entry = (struct data_entry*)urb->context;
+	struct data_ring *ring = entry->ring;
+	struct rt2x00_dev *rt2x00dev = ring->rt2x00dev;
+	struct data_desc *rxd = (struct data_desc*)entry->skb->data;
+	u32 word0;
+	u32 word1;
+	int signal;
+	int rssi;
+	int ofdm;
+	u16 size;
+
+	if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
+	    !__test_and_clear_bit(ENTRY_OWNER_NIC, &entry->flags))
+		return;
+
+	/*
+	 * Check if the received data is simply too small
+	 * to be actually valid, or if the urb is signaling
+	 * a problem.
+	 */
+	if (urb->actual_length < entry->ring->desc_size || urb->status)
+		goto skip_entry;
+
+	rt2x00_desc_read(rxd, 0, &word0);
+	rt2x00_desc_read(rxd, 1, &word1);
+
+	/*
+	 * TODO: Don't we need to keep statistics
+	 * updated about events like CRC and physical errors?
+	 */
+	if (rt2x00_get_field32(word0, RXD_W0_CRC) ||
+	    rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
+		goto skip_entry;
+
+	/*
+	 * Obtain the status about this packet.
+	 */
+	size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
+	signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
+	rssi = rt2x00_get_field32(word1, RXD_W1_RSSI);
+	ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
+
+	/*
+	 * Trim the skb_buffer to only contain the valid
+	 * frame data (so ignore the device's descriptor).
+	 */
+	skb_pull(entry->skb, ring->desc_size);
+	skb_trim(entry->skb, size);
+
+	/*
+	 * Send the packet to upper layer, and update urb.
+	 */
+	rt2x00lib_rxdone(entry, NULL, ring->data_size + ring->desc_size,
+		signal, rssi, ofdm);
+	urb->transfer_buffer = entry->skb->data;
+	urb->transfer_buffer_length = entry->skb->len;
+
+skip_entry:
+	if (test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags)) {
+		__set_bit(ENTRY_OWNER_NIC, &entry->flags);
+		usb_submit_urb(urb, GFP_ATOMIC);
+	}
+
+	rt2x00_ring_index_inc(ring);
+}
+
+/*
+ * Device initialization functions.
+ */
+static int rt73usb_alloc_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	u16 word;
+
+	/*
+	 * Allocate the eeprom memory, check the eeprom width
+	 * and copy the entire eeprom into this allocated memory.
+	 */
+	rt2x00dev->eeprom = kzalloc(EEPROM_SIZE, GFP_KERNEL);
+	if (!rt2x00dev->eeprom)
+		return -ENOMEM;
+
+	rt2x00usb_vendor_request(
+		rt2x00dev, USB_EEPROM_READ, USB_VENDOR_REQUEST_IN,
+		EEPROM_BASE, 0x00, rt2x00dev->eeprom, EEPROM_SIZE,
+		REGISTER_TIMEOUT * (EEPROM_SIZE / sizeof(u16)));
+
+	/*
+	 * Start validation of the data that has been read.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT, 2);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT, 2);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_FRAME_TYPE, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
+		rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF5226);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
+		EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA, 0);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
+		EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_LED_POLARITY_RDY_G, 0);
+		rt2x00_set_field16(&word, EEPROM_LED_POLARITY_RDY_A, 0);
+		rt2x00_set_field16(&word, EEPROM_LED_POLARITY_ACT, 0);
+		rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_0, 0);
+		rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_1, 0);
+		rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_2, 0);
+		rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_3, 0);
+		rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_4, 0);
+		rt2x00_set_field16(&word, EEPROM_LED_LED_MODE,
+			LED_MODE_DEFAULT);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_LED, word);
+		EEPROM(rt2x00dev, "Led: 0x%04x\n", word);
+	}
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &word);
+	if (word == 0xffff) {
+		rt2x00_set_field16(&word, EEPROM_FREQ_OFFSET, 0);
+		rt2x00_set_field16(&word, EEPROM_FREQ_SEQ, 0);
+		rt2x00_eeprom_write(rt2x00dev, EEPROM_FREQ, word);
+		EEPROM(rt2x00dev, "Freq: 0x%04x\n", word);
+	}
+
+	return 0;
+}
+
+static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+	u16 value;
+	u16 eeprom;
+
+	/*
+	 * Read EEPROM word for configuration.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
+
+	/*
+	 * Identify RF chipset.
+	 */
+	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
+	rt73usb_register_read(rt2x00dev, MAC_CSR0, &reg);
+	rt2x00_set_chip(rt2x00dev, RT2571, value, reg);
+
+	if (!rt2x00_rf(&rt2x00dev->chip, RF5226) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2528) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF5225) &&
+	    !rt2x00_rf(&rt2x00dev->chip, RF2527)) {
+		ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
+		return -ENODEV;
+	}
+
+	/*
+	 * Identify default antenna configuration.
+	 */
+	rt2x00dev->hw->conf.antenna_sel_tx = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_TX_DEFAULT);
+	rt2x00dev->hw->conf.antenna_sel_rx = rt2x00_get_field16(eeprom,
+		EEPROM_ANTENNA_RX_DEFAULT);
+
+	/*
+	 * Read the Frame type.
+	 */
+	if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_FRAME_TYPE))
+		__set_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags);
+
+	/*
+	 * Read frequency offset.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom);
+	rt2x00dev->freq_offset =
+		rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET);
+
+	/*
+	 * Read external LNA informations.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
+
+	if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA))
+		__set_bit(CONFIG_EXTERNAL_LNA, &rt2x00dev->flags);
+
+	/*
+	 * Store led settings, for correct led behaviour.
+	 */
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom);
+
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LED_MODE,
+		rt2x00dev->led_mode);
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_0,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_0));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_1,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_1));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_2,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_2));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_3,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_3));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_4,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_GPIO_4));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_ACT,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_ACT));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_READY_BG,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_RDY_G));
+	rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_READY_A,
+		rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_RDY_A));
+
+	return 0;
+}
+
+static const struct {
+	unsigned int chip;
+	u32 val[3];
+} rf_vals[] = {
+	{ RF5226,	{ 0x00002c0c, 0x00068255 } },
+	{ RF2528,	{ 0x00002c0c, 0x00068255 } },
+	{ RF5225,	{ 0x00002ccc, 0x00000000 } },
+	{ RF2527,	{ 0x00002ccc, 0x00068455 } },
+};
+
+/*
+ * RF value list for RF5226, RF2528, RF5225 & RF2527
+ * Supports: 2.4 GHz
+ */
+static const u32 rf_vals_bg[] = {
+	0x00000786, 0x00000786, 0x0000078a, 0x0000078a, 0x0000078e,
+	0x0000078e, 0x00000792, 0x00000792, 0x00000796, 0x00000796,
+	0x0000079a, 0x0000079a, 0x0000079e, 0x000007a2
+};
+
+/*
+ * RF value list for RF5226 & RF5225 (supplement to vals_bg)
+ * Supports: 5.2 GHz
+ */
+static const u32 rf_vals_a_5x[] = {
+	0x0000099a, 0x000009a2, 0x000009a6, 0x000009aa, 0x000009ae,
+	0x000009b2, 0x000009ba, 0x000009be, 0x00000a2a, 0x00000a2e,
+	0x00000a32, 0x00000a36, 0x00000a3a, 0x00000a82, 0x00000a86,
+	0x00000a8a, 0x00000a8e, 0x00000a92, 0x00000a9a, 0x00000aa2,
+	0x00000aa6, 0x00000aae, 0x00000ab2, 0x00000ab6
+};
+
+static void rt73usb_init_hw_mode(struct rt2x00_dev *rt2x00dev)
+{
+	struct hw_mode_spec *spec = &rt2x00dev->spec;
+	u8 *txpower;
+	unsigned int i;
+
+	/*
+	 * Initialize all hw fields.
+	 */
+	rt2x00dev->hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
+		IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
+		IEEE80211_HW_WEP_INCLUDE_IV |
+		IEEE80211_HW_DATA_NULLFUNC_ACK |
+		IEEE80211_HW_NO_TKIP_WMM_HWACCEL |
+		IEEE80211_HW_MONITOR_DURING_OPER;
+	rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
+	rt2x00dev->hw->max_rssi = MAX_RX_SSI;
+	rt2x00dev->hw->max_noise = MAX_RX_NOISE;
+	rt2x00dev->hw->queues = 5;
+
+	/*
+	 * Set device specific, but channel independent RF values.
+	 */
+	for (i = 0; i < ARRAY_SIZE(rf_vals); i++) {
+		if (rt2x00_rf(&rt2x00dev->chip, rf_vals[i].chip)) {
+			rt2x00dev->rf1 = rf_vals[i].val[0];
+			rt2x00dev->rf3 = rf_vals[i].val[1];
+		}
+	}
+
+	/*
+	 * Convert tx_power array in eeprom.
+	 */
+	txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_G_START);
+	for (i = 0; i < 14; i++)
+		txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
+
+	/*
+	 * Initialize hw_mode information.
+	 */
+	spec->mac_addr = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
+	spec->num_modes = 2;
+	spec->num_rates = 12;
+	spec->num_channels = 14;
+	spec->tx_power_a = NULL;
+	spec->tx_power_bg = txpower;
+	spec->tx_power_default = DEFAULT_TXPOWER;
+	spec->chan_val_a = NULL;
+	spec->chan_val_bg = rf_vals_bg;
+
+	if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
+	    rt2x00_rf(&rt2x00dev->chip, RF5226)) {
+		spec->num_modes = 3;
+		spec->num_channels += 24;
+
+		txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
+		for (i = 0; i < 14; i++)
+			txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
+
+		spec->tx_power_a = txpower;
+		spec->chan_val_a = rf_vals_a_5x;
+	}
+}
+
+static int rt73usb_init_hw(struct rt2x00_dev *rt2x00dev)
+{
+	int retval;
+
+	/*
+	 * Allocate eeprom data.
+	 */
+	retval = rt73usb_alloc_eeprom(rt2x00dev);
+	if (retval)
+		return retval;
+
+	retval = rt73usb_init_eeprom(rt2x00dev);
+	if (retval)
+		return retval;
+
+	/*
+	 * Initialize hw specifications.
+	 */
+	rt73usb_init_hw_mode(rt2x00dev);
+
+	/*
+	 * rt73usb requires firmware
+	 */
+	__set_bit(FIRMWARE_REQUIRED, &rt2x00dev->flags);
+
+	return 0;
+}
+
+/*
+ * IEEE80211 stack callback functions.
+ */
+static int rt73usb_get_stats(struct ieee80211_hw *hw,
+	struct ieee80211_low_level_stats *stats)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u32 reg;
+
+	/*
+	 * Update FCS error count from register.
+	 * The dot11ACKFailureCount, dot11RTSFailureCount and
+	 * dot11RTSSuccessCount are updated in interrupt time.
+	 */
+	rt73usb_register_read(rt2x00dev, STA_CSR0, &reg);
+	rt2x00dev->low_level_stats.dot11FCSErrorCount +=
+		rt2x00_get_field32(reg, STA_CSR0_FCS_ERROR);
+
+	memcpy(stats, &rt2x00dev->low_level_stats, sizeof(*stats));
+
+	return 0;
+}
+
+static int rt73usb_set_retry_limit(struct ieee80211_hw *hw,
+	u32 short_retry, u32 long_retry)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u32 reg;
+
+	rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
+	rt2x00_set_field32(&reg, TXRX_CSR4_LONG_RETRY_LIMIT, long_retry);
+	rt2x00_set_field32(&reg, TXRX_CSR4_SHORT_RETRY_LIMIT, short_retry);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
+
+	return 0;
+}
+
+static u64 rt73usb_get_tsf(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u64 tsf;
+	u32 reg;
+
+	rt73usb_register_read(rt2x00dev, TXRX_CSR13, &reg);
+	tsf = (u64)rt2x00_get_field32(reg, TXRX_CSR13_HIGH_TSFTIMER) << 32;
+	rt73usb_register_read(rt2x00dev, TXRX_CSR12, &reg);
+	tsf |= rt2x00_get_field32(reg, TXRX_CSR12_LOW_TSFTIMER);
+
+	return tsf;
+}
+
+static void rt73usb_reset_tsf(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+
+	rt73usb_register_write(rt2x00dev, TXRX_CSR12, 0);
+	rt73usb_register_write(rt2x00dev, TXRX_CSR13, 0);
+}
+
+static const struct ieee80211_ops rt73usb_mac80211_ops = {
+	.tx			= rt2x00lib_tx,
+	.reset			= rt2x00lib_reset,
+	.open			= rt2x00lib_open,
+	.stop			= rt2x00lib_stop,
+	.add_interface		= rt2x00lib_add_interface,
+	.remove_interface	= rt2x00lib_remove_interface,
+	.config			= rt2x00lib_config,
+	.config_interface	= rt2x00lib_config_interface,
+	.set_multicast_list	= rt2x00lib_set_multicast_list,
+	.get_stats		= rt73usb_get_stats,
+	.set_retry_limit	= rt73usb_set_retry_limit,
+	.conf_tx		= rt2x00lib_conf_tx,
+	.get_tx_stats		= rt2x00lib_get_tx_stats,
+	.get_tsf		= rt73usb_get_tsf,
+	.reset_tsf		= rt73usb_reset_tsf,
+	.beacon_update		= rt2x00usb_beacon_update,
+};
+
+static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
+	.init_hw		= rt73usb_init_hw,
+	.get_fw_name		= rt73usb_get_fw_name,
+	.load_firmware		= rt73usb_load_firmware,
+	.initialize		= rt2x00usb_initialize,
+	.uninitialize		= rt2x00usb_uninitialize,
+	.set_device_state	= rt73usb_set_device_state,
+	.link_tuner		= rt73usb_link_tuner,
+	.write_tx_desc		= rt73usb_write_tx_desc,
+	.write_tx_data		= rt2x00usb_write_tx_data,
+	.kick_tx_queue		= rt73usb_kick_tx_queue,
+	.config_type		= rt73usb_config_type,
+	.config_phymode		= rt73usb_config_phymode,
+	.config_channel		= rt73usb_config_channel,
+	.config_mac_addr	= rt73usb_config_mac_addr,
+	.config_bssid		= rt73usb_config_bssid,
+	.config_promisc		= rt73usb_config_promisc,
+	.config_txpower		= rt73usb_config_txpower,
+	.config_antenna		= rt73usb_config_antenna,
+	.config_duration	= rt73usb_config_duration,
+};
+
+static const struct rt2x00_ops rt73usb_ops = {
+	.name	= DRV_NAME,
+	.rxd_size = RXD_DESC_SIZE,
+	.txd_size = TXD_DESC_SIZE,
+	.lib	= &rt73usb_rt2x00_ops,
+	.hw	= &rt73usb_mac80211_ops,
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+	.debugfs = &rt73usb_rt2x00debug,
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+};
+
+/*
+ * rt73usb module information.
+ */
+static struct usb_device_id rt73usb_device_table[] = {
+	/* AboCom */
+	{ USB_DEVICE(0x07b8, 0xb21d), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Askey */
+	{ USB_DEVICE(0x1690, 0x0722), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* ASUS */
+	{ USB_DEVICE(0x0b05, 0x1723), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x0b05, 0x1724), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Belkin */
+	{ USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x050d, 0x905b), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Billionton */
+	{ USB_DEVICE(0x1631, 0xc019), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* CNet */
+	{ USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x1371, 0x9032), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Conceptronic */
+	{ USB_DEVICE(0x14b2, 0x3c22), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* D-Link */
+	{ USB_DEVICE(0x07d1, 0x3c03), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x07d1, 0x3c04), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Gemtek */
+	{ USB_DEVICE(0x15a9, 0x0004), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Gigabyte */
+	{ USB_DEVICE(0x1044, 0x8008), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x1044, 0x800a), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Huawei-3Com */
+	{ USB_DEVICE(0x1472, 0x0009), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Hercules */
+	{ USB_DEVICE(0x06f8, 0xe010), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x06f8, 0xe020), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Linksys */
+	{ USB_DEVICE(0x13b1, 0x0020), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x13b1, 0x0023), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* MSI */
+	{ USB_DEVICE(0x0db0, 0x6877), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x0db0, 0xa861), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x0db0, 0xa874), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Ralink */
+	{ USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x148f, 0x2671), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Qcom */
+	{ USB_DEVICE(0x18e8, 0x6196), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x18e8, 0x6229), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Sitecom */
+	{ USB_DEVICE(0x0df6, 0x9712), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x0df6, 0x90ac), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Surecom */
+	{ USB_DEVICE(0x0769, 0x31f3), USB_DEVICE_DATA(&rt73usb_ops) },
+	/* Planex */
+	{ USB_DEVICE(0x2019, 0xab01), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ USB_DEVICE(0x2019, 0xab50), USB_DEVICE_DATA(&rt73usb_ops) },
+	{ 0, }
+};
+
+MODULE_AUTHOR(DRV_PROJECT);
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("Ralink RT73 USB Wireless LAN driver.");
+MODULE_SUPPORTED_DEVICE("Ralink RT2571W & RT2671 USB chipset based cards");
+MODULE_DEVICE_TABLE(usb, rt73usb_device_table);
+MODULE_FIRMWARE(FIRMWARE_RT2571);
+MODULE_LICENSE("GPL");
+
+static struct usb_driver rt73usb_driver = {
+	.name		= DRV_NAME,
+	.id_table	= rt73usb_device_table,
+	.probe		= rt2x00usb_probe,
+	.disconnect	= rt2x00usb_disconnect,
+#ifdef CONFIG_PM
+	.suspend	= rt2x00usb_suspend,
+	.resume		= rt2x00usb_resume,
+#endif /* CONFIG_PM */
+};
+
+static int __init rt73usb_init(void)
+{
+	printk(KERN_INFO "Loading module: %s - %s by %s.\n",
+		DRV_NAME, DRV_VERSION, DRV_PROJECT);
+	return usb_register(&rt73usb_driver);
+}
+
+static void __exit rt73usb_exit(void)
+{
+	printk(KERN_INFO "Unloading module: %s.\n", DRV_NAME);
+	usb_deregister(&rt73usb_driver);
+}
+
+module_init(rt73usb_init);
+module_exit(rt73usb_exit);
diff --git a/package/rt2x00/src/rt73usb.h b/package/rt2x00/src/rt73usb.h
new file mode 100644
index 0000000..7796656
--- /dev/null
+++ b/package/rt2x00/src/rt73usb.h
@@ -0,0 +1,947 @@
+/*
+	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: rt73usb
+	Abstract: Data structures and registers for the rt73usb module.
+	Supported chipsets: rt2571W & rt2671.
+ */
+
+#ifndef RT73USB_H
+#define RT73USB_H
+
+/*
+ * RF chip defines.
+ */
+#define RF5226				0x0001
+#define RF2528				0x0002
+#define RF5225				0x0003
+#define RF2527				0x0004
+
+/*
+ * Max RSSI value, required for RSSI <-> dBm conversion.
+ */
+#define MAX_RX_SSI			120
+#define MAX_RX_NOISE			-110
+
+/*
+ * Register layout information.
+ */
+#define CSR_REG_BASE			0x3000
+#define CSR_REG_SIZE			0x04b0
+#define EEPROM_BASE			0x0000
+#define EEPROM_SIZE			0x0100
+#define BBP_SIZE			0x0080
+
+/*
+ * USB registers.
+ */
+
+/*
+ * MCU_LEDCS: LED control for MCU Mailbox.
+ */
+#define MCU_LEDCS_LED_MODE		FIELD16(0x001f)
+#define MCU_LEDCS_RADIO_STATUS		FIELD16(0x0020)
+#define MCU_LEDCS_LINK_BG_STATUS	FIELD16(0x0040)
+#define MCU_LEDCS_LINK_A_STATUS		FIELD16(0x0080)
+#define MCU_LEDCS_POLARITY_GPIO_0	FIELD16(0x0100)
+#define MCU_LEDCS_POLARITY_GPIO_1	FIELD16(0x0200)
+#define MCU_LEDCS_POLARITY_GPIO_2	FIELD16(0x0400)
+#define MCU_LEDCS_POLARITY_GPIO_3	FIELD16(0x0800)
+#define MCU_LEDCS_POLARITY_GPIO_4	FIELD16(0x1000)
+#define MCU_LEDCS_POLARITY_ACT		FIELD16(0x2000)
+#define MCU_LEDCS_POLARITY_READY_BG	FIELD16(0x4000)
+#define MCU_LEDCS_POLARITY_READY_A	FIELD16(0x8000)
+
+/*
+ * 8051 firmware image.
+ */
+#define FIRMWARE_RT2571			"rt73.bin"
+#define FIRMWARE_IMAGE_BASE		0x0800
+
+/*
+ * Security key table memory.
+ * 16 entries 32-byte for shared key table
+ * 64 entries 32-byte for pairwise key table
+ * 64 entries 8-byte for pairwise ta key table
+ */
+#define SHARED_KEY_TABLE_BASE		0x1000
+#define PAIRWISE_KEY_TABLE_BASE		0x1200
+#define PAIRWISE_TA_TABLE_BASE		0x1a00
+
+struct hw_key_entry {
+	u8 key[16];
+	u8 tx_mic[8];
+	u8 rx_mic[8];
+} __attribute__ ((packed));
+
+struct hw_pairwise_ta_entry {
+	u8 address[6];
+	u8 reserved[2];
+} __attribute__ ((packed));
+
+/*
+ * Since NULL frame won't be that long (256 byte),
+ * We steal 16 tail bytes to save debugging settings.
+ */
+#define HW_DEBUG_SETTING_BASE		0x2bf0
+
+/*
+ * On-chip BEACON frame space.
+ */
+#define HW_BEACON_BASE0			0x2400
+#define HW_BEACON_BASE1			0x2500
+#define HW_BEACON_BASE2			0x2600
+#define HW_BEACON_BASE3			0x2700
+
+/*
+ * MAC Control/Status Registers(CSR).
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * MAC_CSR0: ASIC revision number.
+ */
+#define MAC_CSR0			0x3000
+
+/*
+ * MAC_CSR1: System control register.
+ * SOFT_RESET: Software reset bit, 1: reset, 0: normal.
+ * BBP_RESET: Hardware reset BBP.
+ * HOST_READY: Host is ready after initialization, 1: ready.
+ */
+#define MAC_CSR1			0x3004
+#define MAC_CSR1_SOFT_RESET		FIELD32(0x00000001)
+#define MAC_CSR1_BBP_RESET		FIELD32(0x00000002)
+#define MAC_CSR1_HOST_READY		FIELD32(0x00000004)
+
+/*
+ * MAC_CSR2: STA MAC register 0.
+ */
+#define MAC_CSR2			0x3008
+#define MAC_CSR2_BYTE0			FIELD32(0x000000ff)
+#define MAC_CSR2_BYTE1			FIELD32(0x0000ff00)
+#define MAC_CSR2_BYTE2			FIELD32(0x00ff0000)
+#define MAC_CSR2_BYTE3			FIELD32(0xff000000)
+
+/*
+ * MAC_CSR3: STA MAC register 1.
+ */
+#define MAC_CSR3			0x300c
+#define MAC_CSR3_BYTE4			FIELD32(0x000000ff)
+#define MAC_CSR3_BYTE5			FIELD32(0x0000ff00)
+#define MAC_CSR3_UNICAST_TO_ME_MASK	FIELD32(0x00ff0000)
+
+/*
+ * MAC_CSR4: BSSID register 0.
+ */
+#define MAC_CSR4			0x3010
+#define MAC_CSR4_BYTE0			FIELD32(0x000000ff)
+#define MAC_CSR4_BYTE1			FIELD32(0x0000ff00)
+#define MAC_CSR4_BYTE2			FIELD32(0x00ff0000)
+#define MAC_CSR4_BYTE3			FIELD32(0xff000000)
+
+/*
+ * MAC_CSR5: BSSID register 1.
+ * BSS_ID_MASK: 3: one BSSID, 0: 4 BSSID, 2 or 1: 2 BSSID.
+ */
+#define MAC_CSR5			0x3014
+#define MAC_CSR5_BYTE4			FIELD32(0x000000ff)
+#define MAC_CSR5_BYTE5			FIELD32(0x0000ff00)
+#define MAC_CSR5_BSS_ID_MASK		FIELD32(0x00ff0000)
+
+/*
+ * MAC_CSR6: Maximum frame length register.
+ */
+#define MAC_CSR6			0x3018
+#define MAC_CSR6_MAX_FRAME_UNIT		FIELD32(0x000007ff)
+
+/*
+ * MAC_CSR7: Reserved
+ */
+#define MAC_CSR7			0x301c
+
+/*
+ * MAC_CSR8: SIFS/EIFS register.
+ * All units are in US.
+ */
+#define MAC_CSR8			0x3020
+#define MAC_CSR8_SIFS			FIELD32(0x000000ff)
+#define MAC_CSR8_SIFS_AFTER_RX_OFDM	FIELD32(0x0000ff00)
+#define MAC_CSR8_EIFS			FIELD32(0xffff0000)
+
+/*
+ * MAC_CSR9: Back-Off control register.
+ * SLOT_TIME: Slot time, default is 20us for 802.11BG.
+ * CWMIN: Bit for Cwmin. default Cwmin is 31 (2^5 - 1).
+ * CWMAX: Bit for Cwmax, default Cwmax is 1023 (2^10 - 1).
+ * CW_SELECT: 1: CWmin/Cwmax select from register, 0:select from TxD.
+ */
+#define MAC_CSR9			0x3024
+#define MAC_CSR9_SLOT_TIME		FIELD32(0x000000ff)
+#define MAC_CSR9_CWMIN			FIELD32(0x00000f00)
+#define MAC_CSR9_CWMAX			FIELD32(0x0000f000)
+#define MAC_CSR9_CW_SELECT		FIELD32(0x00010000)
+
+/*
+ * MAC_CSR10: Power state configuration.
+ */
+#define MAC_CSR10			0x3028
+
+/*
+ * MAC_CSR11: Power saving transition time register.
+ * DELAY_AFTER_TBCN: Delay after Tbcn expired in units of TU.
+ * TBCN_BEFORE_WAKEUP: Number of beacon before wakeup.
+ * WAKEUP_LATENCY: In unit of TU.
+ */
+#define MAC_CSR11			0x302c
+#define MAC_CSR11_DELAY_AFTER_TBCN	FIELD32(0x000000ff)
+#define MAC_CSR11_TBCN_BEFORE_WAKEUP	FIELD32(0x00007f00)
+#define MAC_CSR11_AUTOWAKE		FIELD32(0x00008000)
+#define MAC_CSR11_WAKEUP_LATENCY	FIELD32(0x000f0000)
+
+/*
+ * MAC_CSR12: Manual power control / status register (merge CSR20 & PWRCSR1).
+ * CURRENT_STATE: 0:sleep, 1:awake.
+ * FORCE_WAKEUP: This has higher priority than PUT_TO_SLEEP.
+ * BBP_CURRENT_STATE: 0: BBP sleep, 1: BBP awake.
+ */
+#define MAC_CSR12			0x3030
+#define MAC_CSR12_CURRENT_STATE		FIELD32(0x00000001)
+#define MAC_CSR12_PUT_TO_SLEEP		FIELD32(0x00000002)
+#define MAC_CSR12_FORCE_WAKEUP		FIELD32(0x00000004)
+#define MAC_CSR12_BBP_CURRENT_STATE	FIELD32(0x00000008)
+
+/*
+ * MAC_CSR13: GPIO.
+ */
+#define MAC_CSR13			0x3034
+
+/*
+ * MAC_CSR14: LED control register.
+ * ON_PERIOD: On period, default 70ms.
+ * OFF_PERIOD: Off period, default 30ms.
+ * HW_LED: HW TX activity, 1: normal OFF, 0: normal ON.
+ * SW_LED: s/w LED, 1: ON, 0: OFF.
+ * HW_LED_POLARITY: 0: active low, 1: active high.
+ */
+#define MAC_CSR14			0x3038
+#define MAC_CSR14_ON_PERIOD		FIELD32(0x000000ff)
+#define MAC_CSR14_OFF_PERIOD		FIELD32(0x0000ff00)
+#define MAC_CSR14_HW_LED		FIELD32(0x00010000)
+#define MAC_CSR14_SW_LED		FIELD32(0x00020000)
+#define MAC_CSR14_HW_LED_POLARITY	FIELD32(0x00040000)
+#define MAC_CSR14_SW_LED2		FIELD32(0x00080000)
+
+/*
+ * MAC_CSR15: NAV control.
+ */
+#define MAC_CSR15			0x303c
+
+/*
+ * TXRX control registers.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * TXRX_CSR0: TX/RX configuration register.
+ * TSF_OFFSET: Default is 24.
+ * AUTO_TX_SEQ: 1: ASIC auto replace sequence nr in outgoing frame.
+ * DISABLE_RX: Disable Rx engine.
+ * DROP_CRC: Drop CRC error.
+ * DROP_PHYSICAL: Drop physical error.
+ * DROP_CONTROL: Drop control frame.
+ * DROP_NOT_TO_ME: Drop not to me unicast frame.
+ * DROP_TO_DS: Drop fram ToDs bit is true.
+ * DROP_VERSION_ERROR: Drop version error frame.
+ * DROP_MULTICAST: Drop multicast frames.
+ * DROP_BORADCAST: Drop broadcast frames.
+ * ROP_ACK_CTS: Drop received ACK and CTS.
+ */
+#define TXRX_CSR0			0x3040
+#define TXRX_CSR0_RX_ACK_TIMEOUT	FIELD32(0x000001ff)
+#define TXRX_CSR0_TSF_OFFSET		FIELD32(0x00007e00)
+#define TXRX_CSR0_AUTO_TX_SEQ		FIELD32(0x00008000)
+#define TXRX_CSR0_DISABLE_RX		FIELD32(0x00010000)
+#define TXRX_CSR0_DROP_CRC		FIELD32(0x00020000)
+#define TXRX_CSR0_DROP_PHYSICAL		FIELD32(0x00040000)
+#define TXRX_CSR0_DROP_CONTROL		FIELD32(0x00080000)
+#define TXRX_CSR0_DROP_NOT_TO_ME	FIELD32(0x00100000)
+#define TXRX_CSR0_DROP_TO_DS		FIELD32(0x00200000)
+#define TXRX_CSR0_DROP_VERSION_ERROR	FIELD32(0x00400000)
+#define TXRX_CSR0_DROP_MULTICAST	FIELD32(0x00800000)
+#define TXRX_CSR0_DROP_BORADCAST	FIELD32(0x01000000)
+#define TXRX_CSR0_DROP_ACK_CTS		FIELD32(0x02000000)
+#define TXRX_CSR0_TX_WITHOUT_WAITING	FIELD32(0x04000000)
+
+/*
+ * TXRX_CSR1
+ */
+#define TXRX_CSR1			0x3044
+
+/*
+ * TXRX_CSR2
+ */
+#define TXRX_CSR2			0x3048
+
+/*
+ * TXRX_CSR3
+ */
+#define TXRX_CSR3			0x304c
+
+/*
+ * TXRX_CSR4: Auto-Responder/Tx-retry register.
+ * AUTORESPOND_PREAMBLE: 0:long, 1:short preamble.
+ * OFDM_TX_RATE_DOWN: 1:enable.
+ * OFDM_TX_RATE_STEP: 0:1-step, 1: 2-step, 2:3-step, 3:4-step.
+ * OFDM_TX_FALLBACK_CCK: 0: Fallback to OFDM 6M only, 1: Fallback to CCK 1M,2M.
+ */
+#define TXRX_CSR4			0x3050
+#define TXRX_CSR4_TX_ACK_TIMEOUT	FIELD32(0x000000ff)
+#define TXRX_CSR4_CNTL_ACK_POLICY	FIELD32(0x00000700)
+#define TXRX_CSR4_ACK_CTS_PSM		FIELD32(0x00010000)
+#define TXRX_CSR4_AUTORESPOND_ENABLE	FIELD32(0x00020000)
+#define TXRX_CSR4_AUTORESPOND_PREAMBLE	FIELD32(0x00040000)
+#define TXRX_CSR4_OFDM_TX_RATE_DOWN	FIELD32(0x00080000)
+#define TXRX_CSR4_OFDM_TX_RATE_STEP	FIELD32(0x00300000)
+#define TXRX_CSR4_OFDM_TX_FALLBACK_CCK	FIELD32(0x00400000)
+#define TXRX_CSR4_LONG_RETRY_LIMIT	FIELD32(0x0f000000)
+#define TXRX_CSR4_SHORT_RETRY_LIMIT	FIELD32(0xf0000000)
+
+/*
+ * TXRX_CSR5
+ */
+#define TXRX_CSR5			0x3054
+
+/*
+ * ACK/CTS payload consumed time registers.
+ */
+#define TXRX_CSR6			0x3058
+#define TXRX_CSR7			0x305c
+#define TXRX_CSR8			0x3060
+
+/*
+ * TXRX_CSR9: Synchronization control register.
+ * BEACON_INTERVAL: In unit of 1/16 TU.
+ * TSF_TICKING: Enable TSF auto counting.
+ * TSF_SYNC: Tsf sync, 0: disable, 1: infra, 2: ad-hoc/master mode.
+ * BEACON_GEN: Enable beacon generator.
+ */
+#define TXRX_CSR9			0x3064
+#define TXRX_CSR9_BEACON_INTERVAL	FIELD32(0x0000ffff)
+#define TXRX_CSR9_TSF_TICKING		FIELD32(0x00010000)
+#define TXRX_CSR9_TSF_SYNC		FIELD32(0x00060000)
+#define TXRX_CSR9_TBTT_ENABLE		FIELD32(0x00080000)
+#define TXRX_CSR9_BEACON_GEN		FIELD32(0x00100000)
+#define TXRX_CSR9_TIMESTAMP_COMPENSATE	FIELD32(0xff000000)
+
+/*
+ * TXRX_CSR10: BEACON alignment.
+ */
+#define TXRX_CSR10			0x3068
+
+/*
+ * TXRX_CSR11: AES mask.
+ */
+#define TXRX_CSR11			0x306c
+
+/*
+ * TXRX_CSR12: TSF low 32.
+ */
+#define TXRX_CSR12			0x3070
+#define TXRX_CSR12_LOW_TSFTIMER		FIELD32(0xffffffff)
+
+/*
+ * TXRX_CSR13: TSF high 32.
+ */
+#define TXRX_CSR13			0x3074
+#define TXRX_CSR13_HIGH_TSFTIMER	FIELD32(0xffffffff)
+
+/*
+ * TXRX_CSR14: TBTT timer.
+ */
+#define TXRX_CSR14			0x3078
+
+/*
+ * TXRX_CSR15: TKIP MIC priority byte "AND" mask.
+ */
+#define TXRX_CSR15			0x307c
+
+/*
+ * PHY control registers.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * PHY_CSR0: RF/PS control.
+ */
+#define PHY_CSR0			0x3080
+#define PHY_CSR0_PA_PE_BG		FIELD32(0x00010000)
+#define PHY_CSR0_PA_PE_A		FIELD32(0x00020000)
+
+/*
+ * PHY_CSR1
+ */
+#define PHY_CSR1			0x3084
+#define PHY_CSR1_RF_RPI			FIELD32(0x00010000)
+
+
+/*
+ * PHY_CSR2: Pre-TX BBP control.
+ */
+#define PHY_CSR2			0x3088
+
+/*
+ * PHY_CSR3: BBP serial control register.
+ * VALUE: Register value to program into BBP.
+ * REG_NUM: Selected BBP register.
+ * READ_CONTROL: 0: Write BBP, 1: Read BBP.
+ * BUSY: 1: ASIC is busy execute BBP programming.
+ */
+#define PHY_CSR3			0x308c
+#define PHY_CSR3_VALUE			FIELD32(0x000000ff)
+#define PHY_CSR3_REGNUM			FIELD32(0x00007f00)
+#define PHY_CSR3_READ_CONTROL		FIELD32(0x00008000)
+#define PHY_CSR3_BUSY			FIELD32(0x00010000)
+
+/*
+ * PHY_CSR4: RF serial control register
+ * VALUE: Register value (include register id) serial out to RF/IF chip.
+ * NUMBER_OF_BITS: Number of bits used in RFRegValue (I:20, RFMD:22).
+ * IF_SELECT: 1: select IF to program, 0: select RF to program.
+ * PLL_LD: RF PLL_LD status.
+ * BUSY: 1: ASIC is busy execute RF programming.
+ */
+#define PHY_CSR4			0x3090
+#define PHY_CSR4_VALUE			FIELD32(0x00ffffff)
+#define PHY_CSR4_NUMBER_OF_BITS		FIELD32(0x1f000000)
+#define PHY_CSR4_IF_SELECT		FIELD32(0x20000000)
+#define PHY_CSR4_PLL_LD			FIELD32(0x40000000)
+#define PHY_CSR4_BUSY			FIELD32(0x80000000)
+
+/*
+ * PHY_CSR5: RX to TX signal switch timing control.
+ */
+#define PHY_CSR5			0x3094
+
+/*
+ * PHY_CSR6: TX to RX signal timing control.
+ */
+#define PHY_CSR6			0x3098
+
+/*
+ * PHY_CSR7: TX DAC switching timing control.
+ */
+#define PHY_CSR7			0x309c
+
+/*
+ * Security control register.
+ */
+
+/*
+ * SEC_CSR0: Shared key table control.
+ */
+#define SEC_CSR0			0x30a0
+
+/*
+ * SEC_CSR1: Shared key table security mode register.
+ */
+#define SEC_CSR1			0x30a4
+#define SEC_CSR1_BSS0_KEY0_CIPHER_ALG	FIELD32(0x00000007)
+#define SEC_CSR1_BSS0_KEY1_CIPHER_ALG	FIELD32(0x00000070)
+#define SEC_CSR1_BSS0_KEY2_CIPHER_ALG	FIELD32(0x00000700)
+#define SEC_CSR1_BSS0_KEY3_CIPHER_ALG	FIELD32(0x00007000)
+#define SEC_CSR1_BSS1_KEY0_CIPHER_ALG	FIELD32(0x00070000)
+#define SEC_CSR1_BSS1_KEY1_CIPHER_ALG	FIELD32(0x00700000)
+#define SEC_CSR1_BSS1_KEY2_CIPHER_ALG	FIELD32(0x07000000)
+#define SEC_CSR1_BSS1_KEY3_CIPHER_ALG	FIELD32(0x70000000)
+
+/*
+ * Pairwise key table valid bitmap registers.
+ * SEC_CSR2: pairwise key table valid bitmap 0.
+ * SEC_CSR3: pairwise key table valid bitmap 1.
+ */
+#define SEC_CSR2			0x30a8
+#define SEC_CSR3			0x30ac
+
+/*
+ * SEC_CSR4: Pairwise key table lookup control.
+ */
+#define SEC_CSR4			0x30b0
+
+/*
+ * SEC_CSR5: shared key table security mode register.
+ */
+#define SEC_CSR5			0x30b4
+#define SEC_CSR5_BSS2_KEY0_CIPHER_ALG	FIELD32(0x00000007)
+#define SEC_CSR5_BSS2_KEY1_CIPHER_ALG	FIELD32(0x00000070)
+#define SEC_CSR5_BSS2_KEY2_CIPHER_ALG	FIELD32(0x00000700)
+#define SEC_CSR5_BSS2_KEY3_CIPHER_ALG	FIELD32(0x00007000)
+#define SEC_CSR5_BSS3_KEY0_CIPHER_ALG	FIELD32(0x00070000)
+#define SEC_CSR5_BSS3_KEY1_CIPHER_ALG	FIELD32(0x00700000)
+#define SEC_CSR5_BSS3_KEY2_CIPHER_ALG	FIELD32(0x07000000)
+#define SEC_CSR5_BSS3_KEY3_CIPHER_ALG	FIELD32(0x70000000)
+
+/*
+ * STA control registers.
+ */
+
+/*
+ * STA_CSR0: RX PLCP error count & RX FCS error count.
+ */
+#define STA_CSR0			0x30c0
+#define STA_CSR0_FCS_ERROR		FIELD32(0x0000ffff)
+#define STA_CSR0_PLCP_ERROR		FIELD32(0xffff0000)
+
+/*
+ * STA_CSR1: RX False CCA count & RX LONG frame count.
+ */
+#define STA_CSR1			0x30c4
+#define STA_CSR1_PHYSICAL_ERROR		FIELD32(0x0000ffff)
+#define STA_CSR1_FALSE_CCA_ERROR	FIELD32(0xffff0000)
+
+/*
+ * STA_CSR2: TX Beacon count and RX FIFO overflow count.
+ */
+#define STA_CSR2			0x30c8
+#define STA_CSR2_RX_FIFO_OVERFLOW_COUNT	FIELD32(0x0000ffff)
+#define STA_CSR2_RX_OVERFLOW_COUNT	FIELD32(0xffff0000)
+
+/*
+ * STA_CSR3: TX Beacon count.
+ */
+#define STA_CSR3			0x30cc
+#define STA_CSR3_TX_BEACON_COUNT	FIELD32(0x0000ffff)
+
+/*
+ * STA_CSR4: TX Retry count.
+ */
+#define STA_CSR4			0x30d0
+#define STA_CSR4_TX_NO_RETRY_COUNT	FIELD32(0x0000ffff)
+#define STA_CSR4_TX_ONE_RETRY_COUNT	FIELD32(0xffff0000)
+
+/*
+ * STA_CSR5: TX Retry count.
+ */
+#define STA_CSR5			0x30d4
+#define STA_CSR4_TX_MULTI_RETRY_COUNT	FIELD32(0x0000ffff)
+#define STA_CSR4_TX_RETRY_FAIL_COUNT	FIELD32(0xffff0000)
+
+/*
+ * QOS control registers.
+ */
+
+/*
+ * QOS_CSR1: TXOP holder MAC address register.
+ */
+#define QOS_CSR1			0x30e4
+#define QOS_CSR1_BYTE4			FIELD32(0x000000ff)
+#define QOS_CSR1_BYTE5			FIELD32(0x0000ff00)
+
+/*
+ * QOS_CSR2: TXOP holder timeout register.
+ */
+#define QOS_CSR2			0x30e8
+
+/*
+ * RX QOS-CFPOLL MAC address register.
+ * QOS_CSR3: RX QOS-CFPOLL MAC address 0.
+ * QOS_CSR4: RX QOS-CFPOLL MAC address 1.
+ */
+#define QOS_CSR3			0x30ec
+#define QOS_CSR4			0x30f0
+
+/*
+ * QOS_CSR5: "QosControl" field of the RX QOS-CFPOLL.
+ */
+#define QOS_CSR5			0x30f4
+
+/*
+ * WMM Scheduler Register
+ */
+
+/*
+ * AIFSN_CSR: AIFSN for each EDCA AC.
+ * AIFSN0: For AC_BK.
+ * AIFSN1: For AC_BE.
+ * AIFSN2: For AC_VI.
+ * AIFSN3: For AC_VO.
+ */
+#define AIFSN_CSR			0x0400
+#define AIFSN_CSR_AIFSN0		FIELD32(0x0000000f)
+#define AIFSN_CSR_AIFSN1		FIELD32(0x000000f0)
+#define AIFSN_CSR_AIFSN2		FIELD32(0x00000f00)
+#define AIFSN_CSR_AIFSN3		FIELD32(0x0000f000)
+
+/*
+ * CWMIN_CSR: CWmin for each EDCA AC.
+ * CWMIN0: For AC_BK.
+ * CWMIN1: For AC_BE.
+ * CWMIN2: For AC_VI.
+ * CWMIN3: For AC_VO.
+ */
+#define CWMIN_CSR			0x0404
+#define CWMIN_CSR_CWMIN0		FIELD32(0x0000000f)
+#define CWMIN_CSR_CWMIN1		FIELD32(0x000000f0)
+#define CWMIN_CSR_CWMIN2		FIELD32(0x00000f00)
+#define CWMIN_CSR_CWMIN3		FIELD32(0x0000f000)
+
+/*
+ * CWMAX_CSR: CWmax for each EDCA AC.
+ * CWMAX0: For AC_BK.
+ * CWMAX1: For AC_BE.
+ * CWMAX2: For AC_VI.
+ * CWMAX3: For AC_VO.
+ */
+#define CWMAX_CSR			0x0408
+#define CWMAX_CSR_CWMAX0		FIELD32(0x0000000f)
+#define CWMAX_CSR_CWMAX1		FIELD32(0x000000f0)
+#define CWMAX_CSR_CWMAX2		FIELD32(0x00000f00)
+#define CWMAX_CSR_CWMAX3		FIELD32(0x0000f000)
+
+/*
+ * AC_TXOP_CSR0: AC_BK/AC_BE TXOP register.
+ * AC0_TX_OP: For AC_BK, in unit of 32us.
+ * AC1_TX_OP: For AC_BE, in unit of 32us.
+ */
+#define AC_TXOP_CSR0			0x040c
+#define AC_TXOP_CSR0_AC0_TX_OP		FIELD32(0x0000ffff)
+#define AC_TXOP_CSR0_AC1_TX_OP		FIELD32(0xffff0000)
+
+/*
+ * AC_TXOP_CSR1: AC_VO/AC_VI TXOP register.
+ * AC2_TX_OP: For AC_VI, in unit of 32us.
+ * AC3_TX_OP: For AC_VO, in unit of 32us.
+ */
+#define AC_TXOP_CSR1			0x0410
+#define AC_TXOP_CSR1_AC2_TX_OP		FIELD32(0x0000ffff)
+#define AC_TXOP_CSR1_AC3_TX_OP		FIELD32(0xffff0000)
+
+/*
+ * RF registers
+ */
+#define RF3_TXPOWER			FIELD32(0x00003e00)
+#define RF4_FREQ_OFFSET			FIELD32(0x0003f000)
+
+/*
+ * EEPROM content.
+ * The wordsize of the EEPROM is 16 bits.
+ */
+
+/*
+ * HW MAC address.
+ */
+#define EEPROM_MAC_ADDR_0		0x0002
+#define EEPROM_MAC_ADDR_BYTE0		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE1		FIELD16(0xff00)
+#define EEPROM_MAC_ADDR1		0x0003
+#define EEPROM_MAC_ADDR_BYTE2		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE3		FIELD16(0xff00)
+#define EEPROM_MAC_ADDR_2		0x0004
+#define EEPROM_MAC_ADDR_BYTE4		FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE5		FIELD16(0xff00)
+
+/*
+ * EEPROM antenna.
+ * ANTENNA_NUM: Number of antenna's.
+ * TX_DEFAULT: Default antenna 0: diversity, 1: A, 2: B.
+ * RX_DEFAULT: Default antenna 0: diversity, 1: A, 2: B.
+ * FRAME_TYPE: 0: DPDT , 1: SPDT , noted this bit is valid for g only.
+ * DYN_TXAGC: Dynamic TX AGC control.
+ * HARDWARE_RADIO: 1: Hardware controlled radio. Read GPIO0.
+ * RF_TYPE: Rf_type of this adapter.
+ */
+#define EEPROM_ANTENNA			0x0010
+#define EEPROM_ANTENNA_NUM		FIELD16(0x0003)
+#define EEPROM_ANTENNA_TX_DEFAULT	FIELD16(0x000c)
+#define EEPROM_ANTENNA_RX_DEFAULT	FIELD16(0x0030)
+#define EEPROM_ANTENNA_FRAME_TYPE	FIELD16(0x0040)
+#define EEPROM_ANTENNA_DYN_TXAGC	FIELD16(0x0200)
+#define EEPROM_ANTENNA_HARDWARE_RADIO	FIELD16(0x0400)
+#define EEPROM_ANTENNA_RF_TYPE		FIELD16(0xf800)
+
+/*
+ * EEPROM NIC config.
+ * EXTERNAL_LNA: External LNA.
+ */
+#define EEPROM_NIC			0x0011
+#define EEPROM_NIC_EXTERNAL_LNA		FIELD16(0x0010)
+
+/*
+ * EEPROM geography.
+ * GEO_A: Default geographical setting for 5GHz band
+ * GEO: Default geographical setting.
+ */
+#define EEPROM_GEOGRAPHY		0x0012
+#define EEPROM_GEOGRAPHY_GEO_A		FIELD16(0x00ff)
+#define EEPROM_GEOGRAPHY_GEO		FIELD16(0xff00)
+
+/*
+ * EEPROM BBP.
+ */
+#define EEPROM_BBP_START		0x0013
+#define EEPROM_BBP_SIZE			16
+#define EEPROM_BBP_VALUE		FIELD16(0x00ff)
+#define EEPROM_BBP_REG_ID		FIELD16(0xff00)
+
+/*
+ * EEPROM TXPOWER 802.11G
+ */
+#define EEPROM_TXPOWER_G_START		0x0023
+#define EEPROM_TXPOWER_G_SIZE		7
+#define EEPROM_TXPOWER_G_1		FIELD16(0x00ff)
+#define EEPROM_TXPOWER_G_2		FIELD16(0xff00)
+
+/*
+ * EEPROM Frequency
+ */
+#define EEPROM_FREQ			0x002f
+#define EEPROM_FREQ_OFFSET		FIELD16(0x00ff)
+#define EEPROM_FREQ_SEQ_MASK		FIELD16(0xff00)
+#define EEPROM_FREQ_SEQ			FIELD16(0x0300)
+
+/*
+ * EEPROM LED.
+ * POLARITY_RDY_G: Polarity RDY_G setting.
+ * POLARITY_RDY_A: Polarity RDY_A setting.
+ * POLARITY_ACT: Polarity ACT setting.
+ * POLARITY_GPIO_0: Polarity GPIO0 setting.
+ * POLARITY_GPIO_1: Polarity GPIO1 setting.
+ * POLARITY_GPIO_2: Polarity GPIO2 setting.
+ * POLARITY_GPIO_3: Polarity GPIO3 setting.
+ * POLARITY_GPIO_4: Polarity GPIO4 setting.
+ * LED_MODE: Led mode.
+ */
+#define EEPROM_LED			0x0030
+#define EEPROM_LED_POLARITY_RDY_G	FIELD16(0x0001)
+#define EEPROM_LED_POLARITY_RDY_A	FIELD16(0x0002)
+#define EEPROM_LED_POLARITY_ACT		FIELD16(0x0004)
+#define EEPROM_LED_POLARITY_GPIO_0	FIELD16(0x0008)
+#define EEPROM_LED_POLARITY_GPIO_1	FIELD16(0x0010)
+#define EEPROM_LED_POLARITY_GPIO_2	FIELD16(0x0020)
+#define EEPROM_LED_POLARITY_GPIO_3	FIELD16(0x0040)
+#define EEPROM_LED_POLARITY_GPIO_4	FIELD16(0x0080)
+#define EEPROM_LED_LED_MODE		FIELD16(0x1f00)
+
+/*
+ * EEPROM TXPOWER 802.11A
+ */
+#define EEPROM_TXPOWER_A_START		0x0031
+#define EEPROM_TXPOWER_A_SIZE		12
+#define EEPROM_TXPOWER_A_1		FIELD16(0x00ff)
+#define EEPROM_TXPOWER_A_2		FIELD16(0xff00)
+
+/*
+ * BBP content.
+ * The wordsize of the BBP is 8 bits.
+ */
+
+/*
+ * BBP_R2
+ */
+#define BBP_R2_BG_MODE			FIELD8(0x20)
+
+/*
+ * BBP_R3
+ */
+#define BBP_R3_SMART_MODE		FIELD8(0x01)
+
+/*
+ * BBP_R4: RX antenna control
+ * FRAME_END: 1 - DPDT, 0 - SPDT (Only valid for 802.11G, RF2527 & RF2529)
+ */
+#define BBP_R4_RX_ANTENNA		FIELD8(0x03)
+#define BBP_R4_RX_FRAME_END		FIELD8(0x10)
+#define BBP_R4_RX_BG_MODE		FIELD8(0x20)
+
+/*
+ * BBP_R77
+ */
+#define BBP_R77_PAIR			FIELD8(0x03)
+
+/*
+ * DMA descriptor defines.
+ */
+#define TXD_DESC_SIZE			( 6 * sizeof(struct data_desc) )
+#define RXD_DESC_SIZE			( 6 * sizeof(struct data_desc) )
+
+/*
+ * TX descriptor format for TX, PRIO and Beacon Ring.
+ */
+
+/*
+ * Word0
+ * BURST: Next frame belongs to same "burst" event.
+ * TKIP_MIC: ASIC appends TKIP MIC if TKIP is used.
+ * KEY_TABLE: Use per-client pairwise KEY table.
+ * KEY_INDEX:
+ * Key index (0~31) to the pairwise KEY table.
+ * 0~3 to shared KEY table 0 (BSS0).
+ * 4~7 to shared KEY table 1 (BSS1).
+ * 8~11 to shared KEY table 2 (BSS2).
+ * 12~15 to shared KEY table 3 (BSS3).
+ * BURST2: For backward compatibility, set to same value as BURST.
+ */
+#define TXD_W0_BURST			FIELD32(0x00000001)
+#define TXD_W0_VALID			FIELD32(0x00000002)
+#define TXD_W0_MORE_FRAG		FIELD32(0x00000004)
+#define TXD_W0_ACK			FIELD32(0x00000008)
+#define TXD_W0_TIMESTAMP		FIELD32(0x00000010)
+#define TXD_W0_OFDM			FIELD32(0x00000020)
+#define TXD_W0_IFS			FIELD32(0x00000040)
+#define TXD_W0_RETRY_MODE		FIELD32(0x00000080)
+#define TXD_W0_TKIP_MIC			FIELD32(0x00000100)
+#define TXD_W0_KEY_TABLE		FIELD32(0x00000200)
+#define TXD_W0_KEY_INDEX		FIELD32(0x0000fc00)
+#define TXD_W0_DATABYTE_COUNT		FIELD32(0x0fff0000)
+#define TXD_W0_BURST2			FIELD32(0x10000000)
+#define TXD_W0_CIPHER_ALG		FIELD32(0xe0000000)
+
+/*
+ * Word1
+ * HOST_Q_ID: EDCA/HCCA queue ID.
+ * HW_SEQUENCE: MAC overwrites the frame sequence number.
+ * BUFFER_COUNT: Number of buffers in this TXD.
+ */
+#define TXD_W1_HOST_Q_ID		FIELD32(0x0000000f)
+#define TXD_W1_AIFSN			FIELD32(0x000000f0)
+#define TXD_W1_CWMIN			FIELD32(0x00000f00)
+#define TXD_W1_CWMAX			FIELD32(0x0000f000)
+#define TXD_W1_IV_OFFSET		FIELD32(0x003f0000)
+#define TXD_W1_HW_SEQUENCE		FIELD32(0x10000000)
+#define TXD_W1_BUFFER_COUNT		FIELD32(0xe0000000)
+
+/*
+ * Word2: PLCP information
+ */
+#define TXD_W2_PLCP_SIGNAL		FIELD32(0x000000ff)
+#define TXD_W2_PLCP_SERVICE		FIELD32(0x0000ff00)
+#define TXD_W2_PLCP_LENGTH_LOW		FIELD32(0x00ff0000)
+#define TXD_W2_PLCP_LENGTH_HIGH		FIELD32(0xff000000)
+
+/*
+ * Word3
+ */
+#define TXD_W3_IV			FIELD32(0xffffffff)
+
+/*
+ * Word4
+ */
+#define TXD_W4_EIV			FIELD32(0xffffffff)
+
+/*
+ * Word5
+ * FRAME_OFFSET: Frame start offset inside ASIC TXFIFO (after TXINFO field).
+ * PACKET_ID: Driver assigned packet ID to categorize TXResult in interrupt.
+ * WAITING_DMA_DONE_INT: TXD been filled with data
+ * and waiting for TxDoneISR housekeeping.
+ */
+#define TXD_W5_FRAME_OFFSET		FIELD32(0x000000ff)
+#define TXD_W5_PACKET_ID		FIELD32(0x0000ff00)
+#define TXD_W5_TX_POWER			FIELD32(0x00ff0000)
+#define TXD_W5_WAITING_DMA_DONE_INT	FIELD32(0x01000000)
+
+/*
+ * RX descriptor format for RX Ring.
+ */
+
+/*
+ * Word0
+ * CIPHER_ERROR: 1:ICV error, 2:MIC error, 3:invalid key.
+ * KEY_INDEX: Decryption key actually used.
+ */
+#define RXD_W0_OWNER_NIC		FIELD32(0x00000001)
+#define RXD_W0_DROP			FIELD32(0x00000002)
+#define RXD_W0_UNICAST_TO_ME		FIELD32(0x00000004)
+#define RXD_W0_MULTICAST		FIELD32(0x00000008)
+#define RXD_W0_BROADCAST		FIELD32(0x00000010)
+#define RXD_W0_MY_BSS			FIELD32(0x00000020)
+#define RXD_W0_CRC			FIELD32(0x00000040)
+#define RXD_W0_OFDM			FIELD32(0x00000080)
+#define RXD_W0_CIPHER_ERROR		FIELD32(0x00000300)
+#define RXD_W0_KEY_INDEX		FIELD32(0x0000fc00)
+#define RXD_W0_DATABYTE_COUNT		FIELD32(0x0fff0000)
+#define RXD_W0_CIPHER_ALG		FIELD32(0xe0000000)
+
+/*
+ * WORD1
+ * SIGNAL: RX raw data rate reported by BBP.
+ * RSSI: RSSI reported by BBP.
+ */
+#define RXD_W1_SIGNAL			FIELD32(0x000000ff)
+#define RXD_W1_RSSI			FIELD32(0x0000ff00)
+#define RXD_W1_FRAME_OFFSET		FIELD32(0x7f000000)
+
+/*
+ * Word2
+ * IV: Received IV of originally encrypted.
+ */
+#define RXD_W2_IV			FIELD32(0xffffffff)
+
+/*
+ * Word3
+ * EIV: Received EIV of originally encrypted.
+ */
+#define RXD_W3_EIV			FIELD32(0xffffffff)
+
+/*
+ * Word4
+ */
+#define RXD_W4_RESERVED			FIELD32(0xffffffff)
+
+/*
+ * the above 20-byte is called RXINFO and will be DMAed to MAC RX block
+ * and passed to the HOST driver.
+ * The following fields are for DMA block and HOST usage only.
+ * Can't be touched by ASIC MAC block.
+ */
+
+/*
+ * Word5
+ */
+#define RXD_W5_RESERVED			FIELD32(0xffffffff)
+
+/*
+ * Macro's for converting txpower from EEPROM to dscape value
+ * and from dscape value to register value.
+ */
+#define MIN_TXPOWER	0
+#define MAX_TXPOWER	31
+#define DEFAULT_TXPOWER	24
+
+#define TXPOWER_FROM_DEV(__txpower)		\
+({						\
+	((__txpower) > MAX_TXPOWER) ?		\
+		DEFAULT_TXPOWER : (__txpower);	\
+})
+
+#define TXPOWER_TO_DEV(__txpower)			\
+({							\
+	((__txpower) <= MIN_TXPOWER) ? MIN_TXPOWER :	\
+	(((__txpower) >= MAX_TXPOWER) ? MAX_TXPOWER :	\
+	(__txpower));					\
+})
+
+/*
+ * Interrupt functions.
+ */
+static void rt73usb_interrupt_rxdone(struct urb *urb);
+
+#endif /* RT73USB_H */