rt2500usb.c 60.7 KB
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/*
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	Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
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	<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.
 */

#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/usb.h>

#include "rt2x00.h"
#include "rt2x00usb.h"
#include "rt2500usb.h"

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/*
 * Allow hardware encryption to be disabled.
 */
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static int modparam_nohwcrypt = 0;
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module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");

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/*
 * 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.
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 * If the csr_mutex is already held then the _lock variants must
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 * be used instead.
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 */
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static inline void rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
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					   const unsigned int offset,
					   u16 *value)
{
	__le16 reg;
	rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
				      USB_VENDOR_REQUEST_IN, offset,
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				      &reg, sizeof(reg), REGISTER_TIMEOUT);
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	*value = le16_to_cpu(reg);
}

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static inline void rt2500usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
						const unsigned int offset,
						u16 *value)
{
	__le16 reg;
	rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
				       USB_VENDOR_REQUEST_IN, offset,
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				       &reg, sizeof(reg), REGISTER_TIMEOUT);
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	*value = le16_to_cpu(reg);
}

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static inline void rt2500usb_register_multiread(struct rt2x00_dev *rt2x00dev,
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						const unsigned int offset,
						void *value, const u16 length)
{
	rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
				      USB_VENDOR_REQUEST_IN, offset,
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				      value, length,
				      REGISTER_TIMEOUT16(length));
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}

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static inline void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
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					    const unsigned int offset,
					    u16 value)
{
	__le16 reg = cpu_to_le16(value);
	rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
				      USB_VENDOR_REQUEST_OUT, offset,
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				      &reg, sizeof(reg), REGISTER_TIMEOUT);
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}

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static inline void rt2500usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
						 const unsigned int offset,
						 u16 value)
{
	__le16 reg = cpu_to_le16(value);
	rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
				       USB_VENDOR_REQUEST_OUT, offset,
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				       &reg, sizeof(reg), REGISTER_TIMEOUT);
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}

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static inline void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
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						 const unsigned int offset,
						 void *value, const u16 length)
{
	rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
				      USB_VENDOR_REQUEST_OUT, offset,
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				      value, length,
				      REGISTER_TIMEOUT16(length));
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}

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static int rt2500usb_regbusy_read(struct rt2x00_dev *rt2x00dev,
				  const unsigned int offset,
				  struct rt2x00_field16 field,
				  u16 *reg)
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{
	unsigned int i;

	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
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		rt2500usb_register_read_lock(rt2x00dev, offset, reg);
		if (!rt2x00_get_field16(*reg, field))
			return 1;
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		udelay(REGISTER_BUSY_DELAY);
	}

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	ERROR(rt2x00dev, "Indirect register access failed: "
	      "offset=0x%.08x, value=0x%.08x\n", offset, *reg);
	*reg = ~0;

	return 0;
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}

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#define WAIT_FOR_BBP(__dev, __reg) \
	rt2500usb_regbusy_read((__dev), PHY_CSR8, PHY_CSR8_BUSY, (__reg))
#define WAIT_FOR_RF(__dev, __reg) \
	rt2500usb_regbusy_read((__dev), PHY_CSR10, PHY_CSR10_RF_BUSY, (__reg))

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static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
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				const unsigned int word, const u8 value)
{
	u16 reg;

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	mutex_lock(&rt2x00dev->csr_mutex);
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	/*
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	 * Wait until the BBP becomes available, afterwards we
	 * can safely write the new data into the register.
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	 */
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	if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
		reg = 0;
		rt2x00_set_field16(&reg, PHY_CSR7_DATA, value);
		rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
		rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 0);
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		rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
	}
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	mutex_unlock(&rt2x00dev->csr_mutex);
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}

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static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
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			       const unsigned int word, u8 *value)
{
	u16 reg;

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	mutex_lock(&rt2x00dev->csr_mutex);
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	/*
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	 * Wait until the BBP becomes available, afterwards we
	 * can safely write the read request into the register.
	 * After the data has been written, we wait until hardware
	 * returns the correct value, if at any time the register
	 * doesn't become available in time, reg will be 0xffffffff
	 * which means we return 0xff to the caller.
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	 */
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	if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
		reg = 0;
		rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
		rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 1);
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		rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
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		if (WAIT_FOR_BBP(rt2x00dev, &reg))
			rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, &reg);
	}
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	*value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
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	mutex_unlock(&rt2x00dev->csr_mutex);
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}

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static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
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			       const unsigned int word, const u32 value)
{
	u16 reg;

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	mutex_lock(&rt2x00dev->csr_mutex);
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	/*
	 * Wait until the RF becomes available, afterwards we
	 * can safely write the new data into the register.
	 */
	if (WAIT_FOR_RF(rt2x00dev, &reg)) {
		reg = 0;
		rt2x00_set_field16(&reg, PHY_CSR9_RF_VALUE, value);
		rt2500usb_register_write_lock(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_lock(rt2x00dev, PHY_CSR10, reg);
		rt2x00_rf_write(rt2x00dev, word, value);
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	}

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	mutex_unlock(&rt2x00dev->csr_mutex);
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}

#ifdef CONFIG_RT2X00_LIB_DEBUGFS
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static void _rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
				     const unsigned int offset,
				     u32 *value)
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{
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	rt2500usb_register_read(rt2x00dev, offset, (u16 *)value);
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}

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static void _rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
				      const unsigned int offset,
				      u32 value)
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{
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	rt2500usb_register_write(rt2x00dev, offset, value);
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}

static const struct rt2x00debug rt2500usb_rt2x00debug = {
	.owner	= THIS_MODULE,
	.csr	= {
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		.read		= _rt2500usb_register_read,
		.write		= _rt2500usb_register_write,
		.flags		= RT2X00DEBUGFS_OFFSET,
		.word_base	= CSR_REG_BASE,
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		.word_size	= sizeof(u16),
		.word_count	= CSR_REG_SIZE / sizeof(u16),
	},
	.eeprom	= {
		.read		= rt2x00_eeprom_read,
		.write		= rt2x00_eeprom_write,
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		.word_base	= EEPROM_BASE,
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		.word_size	= sizeof(u16),
		.word_count	= EEPROM_SIZE / sizeof(u16),
	},
	.bbp	= {
		.read		= rt2500usb_bbp_read,
		.write		= rt2500usb_bbp_write,
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		.word_base	= BBP_BASE,
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		.word_size	= sizeof(u8),
		.word_count	= BBP_SIZE / sizeof(u8),
	},
	.rf	= {
		.read		= rt2x00_rf_read,
		.write		= rt2500usb_rf_write,
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		.word_base	= RF_BASE,
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		.word_size	= sizeof(u32),
		.word_count	= RF_SIZE / sizeof(u32),
	},
};
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */

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static int rt2500usb_rfkill_poll(struct rt2x00_dev *rt2x00dev)
{
	u16 reg;

	rt2500usb_register_read(rt2x00dev, MAC_CSR19, &reg);
	return rt2x00_get_field32(reg, MAC_CSR19_BIT7);
}

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#ifdef CONFIG_RT2X00_LIB_LEDS
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static void rt2500usb_brightness_set(struct led_classdev *led_cdev,
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				     enum led_brightness brightness)
{
	struct rt2x00_led *led =
	    container_of(led_cdev, struct rt2x00_led, led_dev);
	unsigned int enabled = brightness != LED_OFF;
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	u16 reg;
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	rt2500usb_register_read(led->rt2x00dev, MAC_CSR20, &reg);
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	if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
		rt2x00_set_field16(&reg, MAC_CSR20_LINK, enabled);
	else if (led->type == LED_TYPE_ACTIVITY)
		rt2x00_set_field16(&reg, MAC_CSR20_ACTIVITY, enabled);

	rt2500usb_register_write(led->rt2x00dev, MAC_CSR20, reg);
}

static int rt2500usb_blink_set(struct led_classdev *led_cdev,
			       unsigned long *delay_on,
			       unsigned long *delay_off)
{
	struct rt2x00_led *led =
	    container_of(led_cdev, struct rt2x00_led, led_dev);
	u16 reg;

	rt2500usb_register_read(led->rt2x00dev, MAC_CSR21, &reg);
	rt2x00_set_field16(&reg, MAC_CSR21_ON_PERIOD, *delay_on);
	rt2x00_set_field16(&reg, MAC_CSR21_OFF_PERIOD, *delay_off);
	rt2500usb_register_write(led->rt2x00dev, MAC_CSR21, reg);
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	return 0;
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}
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static void rt2500usb_init_led(struct rt2x00_dev *rt2x00dev,
			       struct rt2x00_led *led,
			       enum led_type type)
{
	led->rt2x00dev = rt2x00dev;
	led->type = type;
	led->led_dev.brightness_set = rt2500usb_brightness_set;
	led->led_dev.blink_set = rt2500usb_blink_set;
	led->flags = LED_INITIALIZED;
}
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#endif /* CONFIG_RT2X00_LIB_LEDS */
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/*
 * Configuration handlers.
 */
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/*
 * rt2500usb does not differentiate between shared and pairwise
 * keys, so we should use the same function for both key types.
 */
static int rt2500usb_config_key(struct rt2x00_dev *rt2x00dev,
				struct rt2x00lib_crypto *crypto,
				struct ieee80211_key_conf *key)
{
	u32 mask;
	u16 reg;
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	enum cipher curr_cipher;
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	if (crypto->cmd == SET_KEY) {
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		/*
		 * Disallow to set WEP key other than with index 0,
		 * it is known that not work at least on some hardware.
		 * SW crypto will be used in that case.
		 */
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		if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
		     key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
		    key->keyidx != 0)
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			return -EOPNOTSUPP;

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		/*
		 * Pairwise key will always be entry 0, but this
		 * could collide with a shared key on the same
		 * position...
		 */
		mask = TXRX_CSR0_KEY_ID.bit_mask;

		rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
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		curr_cipher = rt2x00_get_field16(reg, TXRX_CSR0_ALGORITHM);
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		reg &= mask;

		if (reg && reg == mask)
			return -ENOSPC;

		reg = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);

		key->hw_key_idx += reg ? ffz(reg) : 0;
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		/*
		 * Hardware requires that all keys use the same cipher
		 * (e.g. TKIP-only, AES-only, but not TKIP+AES).
		 * If this is not the first key, compare the cipher with the
		 * first one and fall back to SW crypto if not the same.
		 */
		if (key->hw_key_idx > 0 && crypto->cipher != curr_cipher)
			return -EOPNOTSUPP;
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		rt2500usb_register_multiwrite(rt2x00dev, KEY_ENTRY(key->hw_key_idx),
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					      crypto->key, sizeof(crypto->key));
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		/*
		 * The driver does not support the IV/EIV generation
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		 * in hardware. However it demands the data to be provided
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		 * both separately as well as inside the frame.
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		 * We already provided the CONFIG_CRYPTO_COPY_IV to rt2x00lib
		 * to ensure rt2x00lib will not strip the data from the
		 * frame after the copy, now we must tell mac80211
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		 * to generate the IV/EIV data.
		 */
		key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
		key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
	}

	/*
	 * TXRX_CSR0_KEY_ID contains only single-bit fields to indicate
	 * a particular key is valid.
	 */
	rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
	rt2x00_set_field16(&reg, TXRX_CSR0_ALGORITHM, crypto->cipher);
	rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);

	mask = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);
	if (crypto->cmd == SET_KEY)
		mask |= 1 << key->hw_key_idx;
	else if (crypto->cmd == DISABLE_KEY)
		mask &= ~(1 << key->hw_key_idx);
	rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, mask);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);

	return 0;
}

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static void rt2500usb_config_filter(struct rt2x00_dev *rt2x00dev,
				    const unsigned int filter_flags)
{
	u16 reg;

	/*
	 * Start configuration steps.
	 * Note that the version error will always be dropped
	 * and broadcast frames will always be accepted since
	 * there is no filter for it at this time.
	 */
	rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
	rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC,
			   !(filter_flags & FIF_FCSFAIL));
	rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL,
			   !(filter_flags & FIF_PLCPFAIL));
	rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL,
			   !(filter_flags & FIF_CONTROL));
	rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME,
			   !(filter_flags & FIF_PROMISC_IN_BSS));
	rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS,
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			   !(filter_flags & FIF_PROMISC_IN_BSS) &&
			   !rt2x00dev->intf_ap_count);
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	rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
	rt2x00_set_field16(&reg, TXRX_CSR2_DROP_MULTICAST,
			   !(filter_flags & FIF_ALLMULTI));
	rt2x00_set_field16(&reg, TXRX_CSR2_DROP_BROADCAST, 0);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
}

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static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
				  struct rt2x00_intf *intf,
				  struct rt2x00intf_conf *conf,
				  const unsigned int flags)
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{
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	unsigned int bcn_preload;
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	u16 reg;

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	if (flags & CONFIG_UPDATE_TYPE) {
		/*
		 * Enable beacon config
		 */
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		bcn_preload = PREAMBLE + GET_DURATION(IEEE80211_HEADER, 20);
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		rt2500usb_register_read(rt2x00dev, TXRX_CSR20, &reg);
		rt2x00_set_field16(&reg, TXRX_CSR20_OFFSET, bcn_preload >> 6);
		rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW,
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				   2 * (conf->type != NL80211_IFTYPE_STATION));
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		rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
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		/*
		 * 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);
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		rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
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		rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, conf->sync);
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		rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
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		rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
	}
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	if (flags & CONFIG_UPDATE_MAC)
		rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac,
					      (3 * sizeof(__le16)));

	if (flags & CONFIG_UPDATE_BSSID)
		rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid,
					      (3 * sizeof(__le16)));
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}

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static void rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev,
				 struct rt2x00lib_erp *erp)
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{
	u16 reg;

	rt2500usb_register_read(rt2x00dev, TXRX_CSR10, &reg);
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	rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE,
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			   !!erp->short_preamble);
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	rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);

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	rt2500usb_register_write(rt2x00dev, TXRX_CSR11, erp->basic_rates);
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	rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
	rt2x00_set_field16(&reg, TXRX_CSR18_INTERVAL, erp->beacon_int * 4);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);

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	rt2500usb_register_write(rt2x00dev, MAC_CSR10, erp->slot_time);
	rt2500usb_register_write(rt2x00dev, MAC_CSR11, erp->sifs);
	rt2500usb_register_write(rt2x00dev, MAC_CSR12, erp->eifs);
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}

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static void rt2500usb_config_ant(struct rt2x00_dev *rt2x00dev,
				 struct antenna_setup *ant)
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{
	u8 r2;
	u8 r14;
	u16 csr5;
	u16 csr6;

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	/*
	 * We should never come here because rt2x00lib is supposed
	 * to catch this and send us the correct antenna explicitely.
	 */
	BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
	       ant->tx == ANTENNA_SW_DIVERSITY);

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	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.
	 */
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	switch (ant->tx) {
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	case ANTENNA_HW_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);
		break;
	case 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);
		break;
	case ANTENNA_B:
552
	default:
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		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);
		break;
	}

	/*
	 * Configure the RX antenna.
	 */
562
	switch (ant->rx) {
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	case ANTENNA_HW_DIVERSITY:
		rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
		break;
	case ANTENNA_A:
		rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
		break;
	case ANTENNA_B:
570
	default:
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		rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
		break;
	}

	/*
	 * RT2525E and RT5222 need to flip TX I/Q
	 */
578
	if (rt2x00_rf(rt2x00dev, RF2525E) || rt2x00_rf(rt2x00dev, RF5222)) {
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		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.
		 */
586
		if (rt2x00_rf(rt2x00dev, RF2525E))
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			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);
}

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static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
				     struct rf_channel *rf, const int txpower)
{
	/*
	 * Set TXpower.
	 */
	rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));

	/*
	 * For RT2525E we should first set the channel to half band higher.
	 */
610
	if (rt2x00_rf(rt2x00dev, RF2525E)) {
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		static const u32 vals[] = {
			0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
			0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
			0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
			0x00000902, 0x00000906
		};

		rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
		if (rf->rf4)
			rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
	}

	rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
	rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
	rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
	if (rf->rf4)
		rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
}

static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
				     const int txpower)
{
	u32 rf3;

	rt2x00_rf_read(rt2x00dev, 3, &rf3);
	rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
	rt2500usb_rf_write(rt2x00dev, 3, rf3);
}

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static void rt2500usb_config_ps(struct rt2x00_dev *rt2x00dev,
				struct rt2x00lib_conf *libconf)
{
	enum dev_state state =
	    (libconf->conf->flags & IEEE80211_CONF_PS) ?
		STATE_SLEEP : STATE_AWAKE;
	u16 reg;

	if (state == STATE_SLEEP) {
		rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
		rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON,
651
				   rt2x00dev->beacon_int - 20);
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		rt2x00_set_field16(&reg, MAC_CSR18_BEACONS_BEFORE_WAKEUP,
				   libconf->conf->listen_interval - 1);

		/* We must first disable autowake before it can be enabled */
		rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 0);
		rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);

		rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 1);
		rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
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	} else {
		rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
		rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 0);
		rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
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	}

	rt2x00dev->ops->lib->set_device_state(rt2x00dev, state);
}

670
static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
671 672
			     struct rt2x00lib_conf *libconf,
			     const unsigned int flags)
673
{
674
	if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
675 676
		rt2500usb_config_channel(rt2x00dev, &libconf->rf,
					 libconf->conf->power_level);
677 678
	if ((flags & IEEE80211_CONF_CHANGE_POWER) &&
	    !(flags & IEEE80211_CONF_CHANGE_CHANNEL))
679 680
		rt2500usb_config_txpower(rt2x00dev,
					 libconf->conf->power_level);
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	if (flags & IEEE80211_CONF_CHANGE_PS)
		rt2500usb_config_ps(rt2x00dev, libconf);
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}

/*
 * Link tuning
 */
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static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
				 struct link_qual *qual)
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{
	u16 reg;

	/*
	 * Update FCS error count from register.
	 */
	rt2500usb_register_read(rt2x00dev, STA_CSR0, &reg);
697
	qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
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	/*
	 * Update False CCA count from register.
	 */
	rt2500usb_register_read(rt2x00dev, STA_CSR3, &reg);
703
	qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
704 705
}

706 707
static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev,
				  struct link_qual *qual)
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{
	u16 eeprom;
	u16 value;

	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);

728
	qual->vgc_level = value;
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}

/*
 * Initialization functions.
 */
static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
{
	u16 reg;

	rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
				    USB_MODE_TEST, REGISTER_TIMEOUT);
	rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
				    0x00f0, REGISTER_TIMEOUT);

	rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
	rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);

	rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
	rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);

	rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
	rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 1);
	rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 1);
	rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
	rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);

	rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
	rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
	rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
	rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
	rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);

	rt2500usb_register_read(rt2x00dev, TXRX_CSR5, &reg);
	rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0, 13);
	rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0_VALID, 1);
	rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1, 12);
	rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1_VALID, 1);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);

	rt2500usb_register_read(rt2x00dev, TXRX_CSR6, &reg);
	rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0, 10);
	rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0_VALID, 1);
	rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1, 11);
	rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1_VALID, 1);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);

	rt2500usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
	rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0, 7);
	rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0_VALID, 1);
	rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1, 6);
	rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1_VALID, 1);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);

	rt2500usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
	rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0, 5);
	rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0_VALID, 1);
	rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1, 0);
	rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1_VALID, 0);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);

790 791 792 793 794 795 796
	rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
	rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 0);
	rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 0);
	rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 0);
	rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);

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	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_read(rt2x00dev, MAC_CSR1, &reg);
	rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
	rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
	rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 1);
	rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);

809
	if (rt2x00_rev(rt2x00dev) >= RT2570_VERSION_C) {
810
		rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
811
		rt2x00_set_field16(&reg, PHY_CSR2_LNA, 0);
812
	} else {
813 814 815
		reg = 0;
		rt2x00_set_field16(&reg, PHY_CSR2_LNA, 1);
		rt2x00_set_field16(&reg, PHY_CSR2_LNA_MODE, 3);
816 817 818 819 820 821 822 823 824 825 826 827 828 829
	}
	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, 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, TXRX_CSR0, &reg);
830
	rt2x00_set_field16(&reg, TXRX_CSR0_ALGORITHM, CIPHER_NONE);
831
	rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
832
	rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0);
833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849
	rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);

	rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
	rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON, 90);
	rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);

	rt2500usb_register_read(rt2x00dev, PHY_CSR4, &reg);
	rt2x00_set_field16(&reg, PHY_CSR4_LOW_RF_LE, 1);
	rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);

	rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
	rt2x00_set_field16(&reg, TXRX_CSR1_AUTO_SEQUENCE, 1);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);

	return 0;
}

850
static int rt2500usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
851 852 853 854 855 856 857
{
	unsigned int i;
	u8 value;

	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
		rt2500usb_bbp_read(rt2x00dev, 0, &value);
		if ((value != 0xff) && (value != 0x00))
858
			return 0;
859 860 861 862 863
		udelay(REGISTER_BUSY_DELAY);
	}

	ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
	return -EACCES;
864 865 866 867 868 869 870 871 872 873 874
}

static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
{
	unsigned int i;
	u16 eeprom;
	u8 value;
	u8 reg_id;

	if (unlikely(rt2500usb_wait_bbp_ready(rt2x00dev)))
		return -EACCES;
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	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, 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);

	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);
			rt2500usb_bbp_write(rt2x00dev, reg_id, 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,
931 932
			   (state == STATE_RADIO_RX_OFF) ||
			   (state == STATE_RADIO_RX_OFF_LINK));
933 934 935 936 937 938 939 940
	rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
}

static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
{
	/*
	 * Initialize all registers.
	 */
941 942
	if (unlikely(rt2500usb_init_registers(rt2x00dev) ||
		     rt2500usb_init_bbp(rt2x00dev)))
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		return -EIO;

	return 0;
}

static void rt2500usb_disable_radio(struct rt2x00_dev *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);
	}

	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:
1012
	case STATE_RADIO_RX_ON_LINK:
1013
	case STATE_RADIO_RX_OFF:
1014
	case STATE_RADIO_RX_OFF_LINK:
1015 1016 1017
		rt2500usb_toggle_rx(rt2x00dev, state);
		break;
	case STATE_RADIO_IRQ_ON:
1018
	case STATE_RADIO_IRQ_ON_ISR:
1019
	case STATE_RADIO_IRQ_OFF:
1020
	case STATE_RADIO_IRQ_OFF_ISR:
1021
		/* No support, but no error either */
1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033
		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;
	}

1034 1035 1036 1037
	if (unlikely(retval))
		ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
		      state, retval);

1038 1039 1040 1041 1042 1043 1044
	return retval;
}

/*
 * TX descriptor initialization
 */
static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1045
				    struct sk_buff *skb,
1046
				    struct txentry_desc *txdesc)
1047
{
1048
	struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1049
	__le32 *txd = (__le32 *) skb->data;
1050 1051 1052 1053 1054
	u32 word;

	/*
	 * Start writing the descriptor words.
	 */
1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072
	rt2x00_desc_read(txd, 0, &word);
	rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, txdesc->retry_limit);
	rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
			   test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
	rt2x00_set_field32(&word, TXD_W0_ACK,
			   test_bit(ENTRY_TXD_ACK, &txdesc->flags));
	rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
			   test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
	rt2x00_set_field32(&word, TXD_W0_OFDM,
			   (txdesc->rate_mode == RATE_MODE_OFDM));
	rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
			   test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
	rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
	rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, txdesc->length);
	rt2x00_set_field32(&word, TXD_W0_CIPHER, !!txdesc->cipher);
	rt2x00_set_field32(&word, TXD_W0_KEY_ID, txdesc->key_idx);
	rt2x00_desc_write(txd, 0, word);

1073
	rt2x00_desc_read(txd, 1, &word);
1074
	rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, txdesc->iv_offset);
1075 1076 1077
	rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
	rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
	rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1078 1079 1080
	rt2x00_desc_write(txd, 1, word);

	rt2x00_desc_read(txd, 2, &word);
1081 1082 1083 1084
	rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
	rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
	rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
	rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1085 1086
	rt2x00_desc_write(txd, 2, word);

1087 1088 1089 1090 1091
	if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) {
		_rt2x00_desc_write(txd, 3, skbdesc->iv[0]);
		_rt2x00_desc_write(txd, 4, skbdesc->iv[1]);
	}

1092 1093 1094
	/*
	 * Register descriptor details in skb frame descriptor.
	 */
1095
	skbdesc->flags |= SKBDESC_DESC_IN_SKB;
1096 1097
	skbdesc->desc = txd;
	skbdesc->desc_len = TXD_DESC_SIZE;
1098 1099
}

1100 1101 1102 1103 1104
/*
 * TX data initialization
 */
static void rt2500usb_beacondone(struct urb *urb);

1105 1106
static void rt2500usb_write_beacon(struct queue_entry *entry,
				   struct txentry_desc *txdesc)
1107 1108 1109 1110
{
	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
	struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
	struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1111
	int pipe = usb_sndbulkpipe(usb_dev, entry->queue->usb_endpoint);
1112
	int length;
1113
	u16 reg, reg0;
1114 1115 1116 1117 1118 1119 1120 1121 1122

	/*
	 * Disable beaconing while we are reloading the beacon data,
	 * otherwise we might be sending out invalid data.
	 */
	rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
	rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);

1123 1124 1125 1126 1127 1128
	/*
	 * Add space for the descriptor in front of the skb.
	 */
	skb_push(entry->skb, TXD_DESC_SIZE);
	memset(entry->skb->data, 0, TXD_DESC_SIZE);

1129 1130 1131 1132 1133 1134 1135 1136 1137 1138
	/*
	 * Write the TX descriptor for the beacon.
	 */
	rt2500usb_write_tx_desc(rt2x00dev, entry->skb, txdesc);

	/*
	 * Dump beacon to userspace through debugfs.
	 */
	rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);

1139 1140 1141 1142 1143
	/*
	 * USB devices cannot blindly pass the skb->len as the
	 * length of the data to usb_fill_bulk_urb. Pass the skb
	 * to the driver to determine what the length should be.
	 */
1144
	length = rt2x00dev->ops->lib->get_tx_data_len(entry);
1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163

	usb_fill_bulk_urb(bcn_priv->urb, usb_dev, pipe,
			  entry->skb->data, length, rt2500usb_beacondone,
			  entry);

	/*
	 * 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.
	 */
	bcn_priv->guardian_data = 0;
	usb_fill_bulk_urb(bcn_priv->guardian_urb, usb_dev, pipe,
			  &bcn_priv->guardian_data, 1, rt2500usb_beacondone,
			  entry);

	/*
	 * Send out the guardian byte.
	 */
	usb_submit_urb(bcn_priv->guardian_urb, GFP_ATOMIC);
1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183

	/*
	 * Enable beaconing again.
	 */
	rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
	rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
	reg0 = reg;
	rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
	/*
	 * Beacon generation will fail initially.
	 * To prevent this we need to change the TXRX_CSR19
	 * register several times (reg0 is the same as reg
	 * except for TXRX_CSR19_BEACON_GEN, which is 0 in reg0
	 * and 1 in reg).
	 */
	rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
	rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1184 1185
}

1186
static int rt2500usb_get_tx_data_len(struct queue_entry *entry)
1187 1188 1189 1190 1191 1192 1193
{
	int length;

	/*
	 * The length _must_ be a multiple of 2,
	 * but it must _not_ be a multiple of the USB packet size.
	 */
1194 1195
	length = roundup(entry->skb->len, 2);
	length += (2 * !(length % entry->queue->usb_maxpacket));
1196 1197 1198 1199

	return length;
}

1200 1201 1202
/*
 * RX control handlers
 */
1203 1204
static void rt2500usb_fill_rxdone(struct queue_entry *entry,
				  struct rxdone_entry_desc *rxdesc)
1205
{
1206
	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1207
	struct queue_entry_priv_usb *entry_priv = entry->priv_data;
1208 1209 1210
	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
	__le32 *rxd =
	    (__le32 *)(entry->skb->data +
1211 1212
		       (entry_priv->urb->actual_length -
			entry->queue->desc_size));
1213 1214 1215
	u32 word0;
	u32 word1;

1216
	/*
1217 1218
	 * Copy descriptor to the skbdesc->desc buffer, making it safe from moving of
	 * frame data in rt2x00usb.
1219
	 */
1220
	memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
1221
	rxd = (__le32 *)skbdesc->desc;
1222 1223

	/*
1224
	 * It is now safe to read the descriptor on all architectures.
1225
	 */
1226 1227 1228
	rt2x00_desc_read(rxd, 0, &word0);
	rt2x00_desc_read(rxd, 1, &word1);

1229
	if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1230
		rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1231
	if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1232
		rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1233

1234 1235 1236
	rxdesc->cipher = rt2x00_get_field32(word0, RXD_W0_CIPHER);
	if (rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
		rxdesc->cipher_status = RX_CRYPTO_FAIL_KEY;
1237 1238 1239 1240

	if (rxdesc->cipher != CIPHER_NONE) {
		_rt2x00_desc_read(rxd, 2, &rxdesc->iv[0]);
		_rt2x00_desc_read(rxd, 3, &rxdesc->iv[1]);
1241 1242
		rxdesc->dev_flags |= RXDONE_CRYPTO_IV;

1243 1244
		/* ICV is located at the end of frame */

1245
		rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
1246 1247 1248 1249 1250 1251
		if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
			rxdesc->flags |= RX_FLAG_DECRYPTED;
		else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
			rxdesc->flags |= RX_FLAG_MMIC_ERROR;
	}

1252 1253
	/*
	 * Obtain the status about this packet.
1254 1255 1256
	 * 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 100kbit/s.
1257
	 */
1258
	rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1259 1260
	rxdesc->rssi =
	    rt2x00_get_field32(word1, RXD_W1_RSSI) - rt2x00dev->rssi_offset;
1261
	rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1262 1263 1264

	if (rt2x00_get_field32(word0, RXD_W0_OFDM))
		rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1265 1266
	else
		rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
1267 1268
	if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
		rxdesc->dev_flags |= RXDONE_MY_BSS;
1269

1270 1271 1272 1273
	/*
	 * Adjust the skb memory window to the frame boundaries.
	 */
	skb_trim(entry->skb, rxdesc->size);
1274 1275 1276 1277 1278 1279 1280
}

/*
 * Interrupt functions.
 */
static void rt2500usb_beacondone(struct urb *urb)
{
1281
	struct queue_entry *entry = (struct queue_entry *)urb->context;
1282
	struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1283

1284
	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1285 1286 1287 1288 1289 1290 1291 1292
		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.
	 */
1293 1294 1295
	if (bcn_priv->guardian_urb == urb) {
		usb_submit_urb(bcn_priv->urb, GFP_ATOMIC);
	} else if (bcn_priv->urb == urb) {
1296 1297
		dev_kfree_skb(entry->skb);
		entry->skb = NULL;
1298 1299 1300 1301 1302 1303 1304 1305 1306 1307
	}
}

/*
 * Device probe functions.
 */
static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
{
	u16 word;
	u8 *mac;
1308
	u8 bbp;
1309 1310 1311 1312 1313 1314 1315 1316 1317

	rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);

	/*
	 * Start validation of the data that has been read.
	 */
	mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
	if (!is_valid_ether_addr(mac)) {
		random_ether_addr(mac);
1318
		EEPROM(rt2x00dev, "MAC: %pM\n", mac);
1319 1320 1321 1322 1323
	}

	rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
	if (word == 0xffff) {
		rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1324 1325 1326 1327 1328 1329
		rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
				   ANTENNA_SW_DIVERSITY);
		rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
				   ANTENNA_SW_DIVERSITY);
		rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
				   LED_MODE_DEFAULT);
1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360
		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,
				   DEFAULT_RSSI_OFFSET);
		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);
	}

1361 1362 1363 1364 1365 1366 1367
	/*
	 * Switch lower vgc bound to current BBP R17 value,
	 * lower the value a bit for better quality.
	 */
	rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
	bbp -= 6;

1368 1369 1370
	rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
	if (word == 0xffff) {
		rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1371
		rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1372 1373
		rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
		EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1374 1375 1376
	} else {
		rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
		rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431
	}

	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);

1432
	if (((reg & 0xfff0) != 0) || ((reg & 0x0000000f) == 0)) {
1433 1434 1435 1436
		ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
		return -ENODEV;
	}

1437 1438 1439 1440 1441 1442
	if (!rt2x00_rf(rt2x00dev, RF2522) &&
	    !rt2x00_rf(rt2x00dev, RF2523) &&
	    !rt2x00_rf(rt2x00dev, RF2524) &&
	    !rt2x00_rf(rt2x00dev, RF2525) &&
	    !rt2x00_rf(rt2x00dev, RF2525E) &&
	    !rt2x00_rf(rt2x00dev, RF5222)) {
1443 1444 1445 1446 1447 1448 1449
		ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
		return -ENODEV;
	}

	/*
	 * Identify default antenna configuration.
	 */
1450
	rt2x00dev->default_ant.tx =
1451
	    rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1452
	rt2x00dev->default_ant.rx =
1453 1454
	    rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);

1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465
	/*
	 * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
	 * I am not 100% sure about this, but the legacy drivers do not
	 * indicate antenna swapping in software is required when
	 * diversity is enabled.
	 */
	if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
		rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
	if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
		rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;

1466 1467 1468
	/*
	 * Store led mode, for correct led behaviour.
	 */
1469
#ifdef CONFIG_RT2X00_LIB_LEDS
1470 1471
	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);

1472
	rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
1473 1474 1475
	if (value == LED_MODE_TXRX_ACTIVITY ||
	    value == LED_MODE_DEFAULT ||
	    value == LED_MODE_ASUS)
1476 1477
		rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
				   LED_TYPE_ACTIVITY);
1478
#endif /* CONFIG_RT2X00_LIB_LEDS */
1479

1480 1481 1482 1483 1484 1485
	/*
	 * Detect if this device has an hardware controlled radio.
	 */
	if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
		__set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);

1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650
	/*
	 * Read the RSSI <-> dBm offset information.
	 */
	rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
	rt2x00dev->rssi_offset =
	    rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);

	return 0;
}

/*
 * RF value list for RF2522
 * Supports: 2.4 GHz
 */
static const struct rf_channel rf_vals_bg_2522[] = {
	{ 1,  0x00002050, 0x000c1fda, 0x00000101, 0 },
	{ 2,  0x00002050, 0x000c1fee, 0x00000101, 0 },
	{ 3,  0x00002050, 0x000c2002, 0x00000101, 0 },
	{ 4,  0x00002050, 0x000c2016, 0x00000101, 0 },
	{ 5,  0x00002050, 0x000c202a, 0x00000101, 0 },
	{ 6,  0x00002050, 0x000c203e, 0x00000101, 0 },
	{ 7,  0x00002050, 0x000c2052, 0x00000101, 0 },
	{ 8,  0x00002050, 0x000c2066, 0x00000101, 0 },
	{ 9,  0x00002050, 0x000c207a, 0x00000101, 0 },
	{ 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
	{ 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
	{ 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
	{ 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
	{ 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
};

/*
 * RF value list for RF2523
 * Supports: 2.4 GHz
 */
static const struct rf_channel rf_vals_bg_2523[] = {
	{ 1,  0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
	{ 2,  0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
	{ 3,  0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
	{ 4,  0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
	{ 5,  0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
	{ 6,  0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
	{ 7,  0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
	{ 8,  0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
	{ 9,  0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
	{ 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
	{ 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
	{ 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
	{ 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
	{ 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
};

/*
 * RF value list for RF2524
 * Supports: 2.4 GHz
 */
static const struct rf_channel rf_vals_bg_2524[] = {
	{ 1,  0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
	{ 2,  0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
	{ 3,  0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
	{ 4,  0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
	{ 5,  0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
	{ 6,  0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
	{ 7,  0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
	{ 8,  0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
	{ 9,  0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
	{ 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
	{ 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
	{ 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
	{ 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
	{ 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
};

/*
 * RF value list for RF2525
 * Supports: 2.4 GHz
 */
static const struct rf_channel rf_vals_bg_2525[] = {
	{ 1,  0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
	{ 2,  0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
	{ 3,  0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
	{ 4,  0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
	{ 5,  0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
	{ 6,  0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
	{ 7,  0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
	{ 8,  0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
	{ 9,  0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
	{ 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
	{ 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
	{ 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
	{ 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
	{ 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
};

/*
 * RF value list for RF2525e
 * Supports: 2.4 GHz
 */
static const struct rf_channel rf_vals_bg_2525e[] = {
	{ 1,  0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
	{ 2,  0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
	{ 3,  0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
	{ 4,  0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
	{ 5,  0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
	{ 6,  0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
	{ 7,  0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
	{ 8,  0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
	{ 9,  0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
	{ 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
	{ 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
	{ 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
	{ 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
	{ 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
};

/*
 * RF value list for RF5222
 * Supports: 2.4 GHz & 5.2 GHz
 */
static const struct rf_channel rf_vals_5222[] = {
	{ 1,  0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
	{ 2,  0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
	{ 3,  0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
	{ 4,  0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
	{ 5,  0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
	{ 6,  0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
	{ 7,  0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
	{ 8,  0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
	{ 9,  0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
	{ 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
	{ 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
	{ 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
	{ 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
	{ 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },

	/* 802.11 UNI / HyperLan 2 */
	{ 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
	{ 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
	{ 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
	{ 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
	{ 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
	{ 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
	{ 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
	{ 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },

	/* 802.11 HyperLan 2 */
	{ 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
	{ 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
	{ 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
	{ 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
	{ 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
	{ 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
	{ 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
	{ 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
	{ 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
	{ 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },

	/* 802.11 UNII */
	{ 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
	{ 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
	{ 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
	{ 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
	{ 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
};

1651
static int rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1652 1653
{
	struct hw_mode_spec *spec = &rt2x00dev->spec;
1654 1655
	struct channel_info *info;
	char *tx_power;
1656 1657 1658 1659 1660 1661 1662
	unsigned int i;

	/*
	 * Initialize all hw fields.
	 */
	rt2x00dev->hw->flags =
	    IEEE80211_HW_RX_INCLUDES_FCS |
1663
	    IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1664 1665 1666
	    IEEE80211_HW_SIGNAL_DBM |
	    IEEE80211_HW_SUPPORTS_PS |
	    IEEE80211_HW_PS_NULLFUNC_STACK;
1667

1668
	SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
1669 1670 1671 1672 1673 1674 1675
	SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
				rt2x00_eeprom_addr(rt2x00dev,
						   EEPROM_MAC_ADDR_0));

	/*
	 * Initialize hw_mode information.
	 */
1676 1677
	spec->supported_bands = SUPPORT_BAND_2GHZ;
	spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1678

1679
	if (rt2x00_rf(rt2x00dev, RF2522)) {
1680 1681
		spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
		spec->channels = rf_vals_bg_2522;
1682
	} else if (rt2x00_rf(rt2x00dev, RF2523)) {
1683 1684
		spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
		spec->channels = rf_vals_bg_2523;
1685
	} else if (rt2x00_rf(rt2x00dev, RF2524)) {
1686 1687
		spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
		spec->channels = rf_vals_bg_2524;
1688
	} else if (rt2x00_rf(rt2x00dev, RF2525)) {
1689 1690
		spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
		spec->channels = rf_vals_bg_2525;
1691
	} else if (rt2x00_rf(rt2x00dev, RF2525E)) {
1692 1693
		spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
		spec->channels = rf_vals_bg_2525e;
1694
	} else if (rt2x00_rf(rt2x00dev, RF5222)) {
1695
		spec->supported_bands |= SUPPORT_BAND_5GHZ;
1696 1697 1698
		spec->num_channels = ARRAY_SIZE(rf_vals_5222);
		spec->channels = rf_vals_5222;
	}
1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718

	/*
	 * Create channel information array
	 */
	info = kzalloc(spec->num_channels * sizeof(*info), GFP_KERNEL);
	if (!info)
		return -ENOMEM;

	spec->channels_info = info;

	tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
	for (i = 0; i < 14; i++)
		info[i].tx_power1 = TXPOWER_FROM_DEV(tx_power[i]);

	if (spec->num_channels > 14) {
		for (i = 14; i < spec->num_channels; i++)
			info[i].tx_power1 = DEFAULT_TXPOWER;
	}

	return 0;
1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738
}

static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
{
	int retval;

	/*
	 * Allocate eeprom data.
	 */
	retval = rt2500usb_validate_eeprom(rt2x00dev);
	if (retval)
		return retval;

	retval = rt2500usb_init_eeprom(rt2x00dev);
	if (retval)
		return retval;

	/*
	 * Initialize hw specifications.
	 */
1739 1740 1741
	retval = rt2500usb_probe_hw_mode(rt2x00dev);
	if (retval)
		return retval;
1742 1743

	/*
1744
	 * This device requires the atim queue
1745
	 */
1746 1747
	__set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
	__set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1748 1749
	if (!modparam_nohwcrypt) {
		__set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
1750
		__set_bit(DRIVER_REQUIRE_COPY_IV, &rt2x00dev->flags);
1751
	}
1752
	__set_bit(DRIVER_SUPPORT_WATCHDOG, &rt2x00dev->flags);
1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763

	/*
	 * Set the rssi offset.
	 */
	rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;

	return 0;
}

static const struct ieee80211_ops rt2500usb_mac80211_ops = {
	.tx			= rt2x00mac_tx,
1764 1765
	.start			= rt2x00mac_start,
	.stop			= rt2x00mac_stop,
1766 1767 1768
	.add_interface		= rt2x00mac_add_interface,
	.remove_interface	= rt2x00mac_remove_interface,
	.config			= rt2x00mac_config,
1769
	.configure_filter	= rt2x00mac_configure_filter,
1770
	.set_tim		= rt2x00mac_set_tim,
1771
	.set_key		= rt2x00mac_set_key,
1772 1773
	.sw_scan_start		= rt2x00mac_sw_scan_start,
	.sw_scan_complete	= rt2x00mac_sw_scan_complete,
1774
	.get_stats		= rt2x00mac_get_stats,
1775
	.bss_info_changed	= rt2x00mac_bss_info_changed,
1776
	.conf_tx		= rt2x00mac_conf_tx,
1777
	.rfkill_poll		= rt2x00mac_rfkill_poll,
1778 1779 1780 1781 1782 1783
};

static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
	.probe_hw		= rt2500usb_probe_hw,
	.initialize		= rt2x00usb_initialize,
	.uninitialize		= rt2x00usb_uninitialize,
1784
	.clear_entry		= rt2x00usb_clear_entry,
1785
	.set_device_state	= rt2500usb_set_device_state,
1786
	.rfkill_poll		= rt2500usb_rfkill_poll,
1787 1788
	.link_stats		= rt2500usb_link_stats,
	.reset_tuner		= rt2500usb_reset_tuner,
1789
	.watchdog		= rt2x00usb_watchdog,
1790
	.write_tx_desc		= rt2500usb_write_tx_desc,
1791
	.write_beacon		= rt2500usb_write_beacon,
1792
	.get_tx_data_len	= rt2500usb_get_tx_data_len,
1793
	.kick_tx_queue		= rt2x00usb_kick_tx_queue,
1794
	.kill_tx_queue		= rt2x00usb_kill_tx_queue,
1795
	.fill_rxdone		= rt2500usb_fill_rxdone,
1796 1797
	.config_shared_key	= rt2500usb_config_key,
	.config_pairwise_key	= rt2500usb_config_key,
1798
	.config_filter		= rt2500usb_config_filter,
1799
	.config_intf		= rt2500usb_config_intf,
1800
	.config_erp		= rt2500usb_config_erp,
1801
	.config_ant		= rt2500usb_config_ant,
1802 1803 1804
	.config			= rt2500usb_config,
};

1805 1806 1807 1808
static const struct data_queue_desc rt2500usb_queue_rx = {
	.entry_num		= RX_ENTRIES,
	.data_size		= DATA_FRAME_SIZE,
	.desc_size		= RXD_DESC_SIZE,
1809
	.priv_size		= sizeof(struct queue_entry_priv_usb),
1810 1811 1812 1813 1814 1815
};

static const struct data_queue_desc rt2500usb_queue_tx = {
	.entry_num		= TX_ENTRIES,
	.data_size		= DATA_FRAME_SIZE,
	.desc_size		= TXD_DESC_SIZE,
1816
	.priv_size		= sizeof(struct queue_entry_priv_usb),
1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829
};

static const struct data_queue_desc rt2500usb_queue_bcn = {
	.entry_num		= BEACON_ENTRIES,
	.data_size		= MGMT_FRAME_SIZE,
	.desc_size		= TXD_DESC_SIZE,
	.priv_size		= sizeof(struct queue_entry_priv_usb_bcn),
};

static const struct data_queue_desc rt2500usb_queue_atim = {
	.entry_num		= ATIM_ENTRIES,
	.data_size		= DATA_FRAME_SIZE,
	.desc_size		= TXD_DESC_SIZE,
1830
	.priv_size		= sizeof(struct queue_entry_priv_usb),
1831 1832
};

1833
static const struct rt2x00_ops rt2500usb_ops = {
1834 1835 1836 1837 1838 1839
	.name			= KBUILD_MODNAME,
	.max_sta_intf		= 1,
	.max_ap_intf		= 1,
	.eeprom_size		= EEPROM_SIZE,
	.rf_size		= RF_SIZE,
	.tx_queues		= NUM_TX_QUEUES,
1840
	.extra_tx_headroom	= TXD_DESC_SIZE,
1841 1842 1843 1844 1845 1846
	.rx			= &rt2500usb_queue_rx,
	.tx			= &rt2500usb_queue_tx,
	.bcn			= &rt2500usb_queue_bcn,
	.atim			= &rt2500usb_queue_atim,
	.lib			= &rt2500usb_rt2x00_ops,
	.hw			= &rt2500usb_mac80211_ops,
1847
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
1848
	.debugfs		= &rt2500usb_rt2x00debug,
1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866
#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) },
1867 1868
	/* CNet */
	{ USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt2500usb_ops) },
1869 1870 1871 1872 1873 1874 1875 1876 1877 1878
	/* 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 */
1879
	{ USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892
	{ 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) },
	{ USB_DEVICE(0x0411, 0x0097), 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) },
1893 1894
	/* Sagem */
	{ USB_DEVICE(0x079b, 0x004b), USB_DEVICE_DATA(&rt2500usb_ops) },
1895 1896 1897 1898 1899 1900
	/* 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) },
1901 1902
	/* SURECOM */
	{ USB_DEVICE(0x0769, 0x11f3), USB_DEVICE_DATA(&rt2500usb_ops) },
1903 1904
	/* Trust */
	{ USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1905 1906
	/* VTech */
	{ USB_DEVICE(0x0f88, 0x3012), USB_DEVICE_DATA(&rt2500usb_ops) },
1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919
	/* 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 = {
1920
	.name		= KBUILD_MODNAME,
1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939
	.id_table	= rt2500usb_device_table,
	.probe		= rt2x00usb_probe,
	.disconnect	= rt2x00usb_disconnect,
	.suspend	= rt2x00usb_suspend,
	.resume		= rt2x00usb_resume,
};

static int __init rt2500usb_init(void)
{
	return usb_register(&rt2500usb_driver);
}

static void __exit rt2500usb_exit(void)
{
	usb_deregister(&rt2500usb_driver);
}

module_init(rt2500usb_init);
module_exit(rt2500usb_exit);
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