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linuxdebug/drivers/net/wireless/ralink/rt2x00/rt2500usb.c

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null pointer error
2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0-or-later
/*
Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
<http://rt2x00.serialmonkey.com>
*/
/*
Module: rt2500usb
Abstract: rt2500usb device specific routines.
Supported chipsets: RT2570.
*/
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include "rt2x00.h"
#include "rt2x00usb.h"
#include "rt2500usb.h"
/*
* Allow hardware encryption to be disabled.
*/
static bool modparam_nohwcrypt;
module_param_named(nohwcrypt, modparam_nohwcrypt, bool, 0444);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
/*
* 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_USB_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.
* If the csr_mutex is already held then the _lock variants must
* be used instead.
*/
static u16 rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
const unsigned int offset)
{
__le16 reg;
rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
USB_VENDOR_REQUEST_IN, offset,
&reg, sizeof(reg));
return le16_to_cpu(reg);
}
static u16 rt2500usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
const unsigned int offset)
{
__le16 reg;
rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
USB_VENDOR_REQUEST_IN, offset,
&reg, sizeof(reg), REGISTER_TIMEOUT);
return le16_to_cpu(reg);
}
static void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
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,
&reg, sizeof(reg));
}
static 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,
&reg, sizeof(reg), REGISTER_TIMEOUT);
}
static void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
void *value, const u16 length)
{
rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
USB_VENDOR_REQUEST_OUT, offset,
value, length);
}
static int rt2500usb_regbusy_read(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
struct rt2x00_field16 field,
u16 *reg)
{
unsigned int i;
for (i = 0; i < REGISTER_USB_BUSY_COUNT; i++) {
*reg = rt2500usb_register_read_lock(rt2x00dev, offset);
if (!rt2x00_get_field16(*reg, field))
return 1;
udelay(REGISTER_BUSY_DELAY);
}
rt2x00_err(rt2x00dev, "Indirect register access failed: offset=0x%.08x, value=0x%.08x\n",
offset, *reg);
*reg = ~0;
return 0;
}
#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))
static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
const unsigned int word, const u8 value)
{
u16 reg;
mutex_lock(&rt2x00dev->csr_mutex);
/*
* Wait until the BBP becomes available, afterwards we
* can safely write the new data into the register.
*/
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);
rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
}
mutex_unlock(&rt2x00dev->csr_mutex);
}
static u8 rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
const unsigned int word)
{
u16 reg;
u8 value;
mutex_lock(&rt2x00dev->csr_mutex);
/*
* 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.
*/
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);
rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
if (WAIT_FOR_BBP(rt2x00dev, &reg))
reg = rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7);
}
value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
mutex_unlock(&rt2x00dev->csr_mutex);
return value;
}
static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
const unsigned int word, const u32 value)
{
u16 reg;
mutex_lock(&rt2x00dev->csr_mutex);
/*
* 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);
}
mutex_unlock(&rt2x00dev->csr_mutex);
}
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
static u32 _rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
const unsigned int offset)
{
return rt2500usb_register_read(rt2x00dev, offset);
}
static void _rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
u32 value)
{
rt2500usb_register_write(rt2x00dev, offset, value);
}
static const struct rt2x00debug rt2500usb_rt2x00debug = {
.owner = THIS_MODULE,
.csr = {
.read = _rt2500usb_register_read,
.write = _rt2500usb_register_write,
.flags = RT2X00DEBUGFS_OFFSET,
.word_base = CSR_REG_BASE,
.word_size = sizeof(u16),
.word_count = CSR_REG_SIZE / sizeof(u16),
},
.eeprom = {
.read = rt2x00_eeprom_read,
.write = rt2x00_eeprom_write,
.word_base = EEPROM_BASE,
.word_size = sizeof(u16),
.word_count = EEPROM_SIZE / sizeof(u16),
},
.bbp = {
.read = rt2500usb_bbp_read,
.write = rt2500usb_bbp_write,
.word_base = BBP_BASE,
.word_size = sizeof(u8),
.word_count = BBP_SIZE / sizeof(u8),
},
.rf = {
.read = rt2x00_rf_read,
.write = rt2500usb_rf_write,
.word_base = RF_BASE,
.word_size = sizeof(u32),
.word_count = RF_SIZE / sizeof(u32),
},
};
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
static int rt2500usb_rfkill_poll(struct rt2x00_dev *rt2x00dev)
{
u16 reg;
reg = rt2500usb_register_read(rt2x00dev, MAC_CSR19);
return rt2x00_get_field16(reg, MAC_CSR19_VAL7);
}
#ifdef CONFIG_RT2X00_LIB_LEDS
static void rt2500usb_brightness_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct rt2x00_led *led =
container_of(led_cdev, struct rt2x00_led, led_dev);
unsigned int enabled = brightness != LED_OFF;
u16 reg;
reg = rt2500usb_register_read(led->rt2x00dev, MAC_CSR20);
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;
reg = rt2500usb_register_read(led->rt2x00dev, MAC_CSR21);
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);
return 0;
}
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;
}
#endif /* CONFIG_RT2X00_LIB_LEDS */
/*
* Configuration handlers.
*/
/*
* 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;
enum cipher curr_cipher;
if (crypto->cmd == SET_KEY) {
/*
* 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.
*/
if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
key->keyidx != 0)
return -EOPNOTSUPP;
/*
* 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;
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR0);
curr_cipher = rt2x00_get_field16(reg, TXRX_CSR0_ALGORITHM);
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;
/*
* 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;
rt2500usb_register_multiwrite(rt2x00dev, KEY_ENTRY(key->hw_key_idx),
crypto->key, sizeof(crypto->key));
/*
* The driver does not support the IV/EIV generation
* in hardware. However it demands the data to be provided
* both separately as well as inside the frame.
* 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
* 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.
*/
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR0);
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;
}
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.
*/
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR2);
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,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags));
rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags) &&
!rt2x00dev->intf_ap_count);
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);
}
static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
struct rt2x00_intf *intf,
struct rt2x00intf_conf *conf,
const unsigned int flags)
{
unsigned int bcn_preload;
u16 reg;
if (flags & CONFIG_UPDATE_TYPE) {
/*
* Enable beacon config
*/
bcn_preload = PREAMBLE + GET_DURATION(IEEE80211_HEADER, 20);
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR20);
rt2x00_set_field16(&reg, TXRX_CSR20_OFFSET, bcn_preload >> 6);
rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW,
2 * (conf->type != NL80211_IFTYPE_STATION));
rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
/*
* Enable synchronisation.
*/
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR18);
rt2x00_set_field16(&reg, TXRX_CSR18_OFFSET, 0);
rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR19);
rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, conf->sync);
rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
}
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)));
}
static void rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_erp *erp,
u32 changed)
{
u16 reg;
if (changed & BSS_CHANGED_ERP_PREAMBLE) {
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR10);
rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE,
!!erp->short_preamble);
rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
}
if (changed & BSS_CHANGED_BASIC_RATES)
rt2500usb_register_write(rt2x00dev, TXRX_CSR11,
erp->basic_rates);
if (changed & BSS_CHANGED_BEACON_INT) {
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR18);
rt2x00_set_field16(&reg, TXRX_CSR18_INTERVAL,
erp->beacon_int * 4);
rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
}
if (changed & BSS_CHANGED_ERP_SLOT) {
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);
}
}
static void rt2500usb_config_ant(struct rt2x00_dev *rt2x00dev,
struct antenna_setup *ant)
{
u8 r2;
u8 r14;
u16 csr5;
u16 csr6;
/*
* 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);
r2 = rt2500usb_bbp_read(rt2x00dev, 2);
r14 = rt2500usb_bbp_read(rt2x00dev, 14);
csr5 = rt2500usb_register_read(rt2x00dev, PHY_CSR5);
csr6 = rt2500usb_register_read(rt2x00dev, PHY_CSR6);
/*
* Configure the TX antenna.
*/
switch (ant->tx) {
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:
default:
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.
*/
switch (ant->rx) {
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:
default:
rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
break;
}
/*
* RT2525E and RT5222 need to flip TX I/Q
*/
if (rt2x00_rf(rt2x00dev, RF2525E) || rt2x00_rf(rt2x00dev, 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, 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_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.
*/
if (rt2x00_rf(rt2x00dev, RF2525E)) {
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;
rf3 = rt2x00_rf_read(rt2x00dev, 3);
rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
rt2500usb_rf_write(rt2x00dev, 3, rf3);
}
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) {
reg = rt2500usb_register_read(rt2x00dev, MAC_CSR18);
rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON,
rt2x00dev->beacon_int - 20);
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);
} else {
reg = rt2500usb_register_read(rt2x00dev, MAC_CSR18);
rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 0);
rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
}
rt2x00dev->ops->lib->set_device_state(rt2x00dev, state);
}
static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_conf *libconf,
const unsigned int flags)
{
if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
rt2500usb_config_channel(rt2x00dev, &libconf->rf,
libconf->conf->power_level);
if ((flags & IEEE80211_CONF_CHANGE_POWER) &&
!(flags & IEEE80211_CONF_CHANGE_CHANNEL))
rt2500usb_config_txpower(rt2x00dev,
libconf->conf->power_level);
if (flags & IEEE80211_CONF_CHANGE_PS)
rt2500usb_config_ps(rt2x00dev, libconf);
}
/*
* Link tuning
*/
static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
struct link_qual *qual)
{
u16 reg;
/*
* Update FCS error count from register.
*/
reg = rt2500usb_register_read(rt2x00dev, STA_CSR0);
qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
/*
* Update False CCA count from register.
*/
reg = rt2500usb_register_read(rt2x00dev, STA_CSR3);
qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
}
static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev,
struct link_qual *qual)
{
u16 eeprom;
u16 value;
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24);
value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
rt2500usb_bbp_write(rt2x00dev, 24, value);
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25);
value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
rt2500usb_bbp_write(rt2x00dev, 25, value);
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61);
value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
rt2500usb_bbp_write(rt2x00dev, 61, value);
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC);
value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
rt2500usb_bbp_write(rt2x00dev, 17, value);
qual->vgc_level = value;
}
/*
* Queue handlers.
*/
static void rt2500usb_start_queue(struct data_queue *queue)
{
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
u16 reg;
switch (queue->qid) {
case QID_RX:
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR2);
rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 0);
rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
break;
case QID_BEACON:
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR19);
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, 1);
rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
break;
default:
break;
}
}
static void rt2500usb_stop_queue(struct data_queue *queue)
{
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
u16 reg;
switch (queue->qid) {
case QID_RX:
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR2);
rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
break;
case QID_BEACON:
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR19);
rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 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);
break;
default:
break;
}
}
/*
* 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);
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR2);
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);
reg = rt2500usb_register_read(rt2x00dev, MAC_CSR1);
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);
reg = rt2500usb_register_read(rt2x00dev, MAC_CSR1);
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);
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR5);
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);
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR6);
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);
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR7);
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);
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR8);
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);
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR19);
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);
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;
reg = rt2500usb_register_read(rt2x00dev, MAC_CSR1);
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);
if (rt2x00_rev(rt2x00dev) >= RT2570_VERSION_C) {
reg = rt2500usb_register_read(rt2x00dev, PHY_CSR2);
rt2x00_set_field16(&reg, PHY_CSR2_LNA, 0);
} else {
reg = 0;
rt2x00_set_field16(&reg, PHY_CSR2_LNA, 1);
rt2x00_set_field16(&reg, PHY_CSR2_LNA_MODE, 3);
}
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);
reg = rt2500usb_register_read(rt2x00dev, MAC_CSR8);
rt2x00_set_field16(&reg, MAC_CSR8_MAX_FRAME_UNIT,
rt2x00dev->rx->data_size);
rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR0);
rt2x00_set_field16(&reg, TXRX_CSR0_ALGORITHM, CIPHER_NONE);
rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0);
rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
reg = rt2500usb_register_read(rt2x00dev, MAC_CSR18);
rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON, 90);
rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
reg = rt2500usb_register_read(rt2x00dev, PHY_CSR4);
rt2x00_set_field16(&reg, PHY_CSR4_LOW_RF_LE, 1);
rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR1);
rt2x00_set_field16(&reg, TXRX_CSR1_AUTO_SEQUENCE, 1);
rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
return 0;
}
static int rt2500usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
{
unsigned int i;
u8 value;
for (i = 0; i < REGISTER_USB_BUSY_COUNT; i++) {
value = rt2500usb_bbp_read(rt2x00dev, 0);
if ((value != 0xff) && (value != 0x00))
return 0;
udelay(REGISTER_BUSY_DELAY);
}
rt2x00_err(rt2x00dev, "BBP register access failed, aborting\n");
return -EACCES;
}
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;
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++) {
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i);
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 int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
{
/*
* Initialize all registers.
*/
if (unlikely(rt2500usb_init_registers(rt2x00dev) ||
rt2500usb_init_bbp(rt2x00dev)))
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;
bool put_to_sleep;
u8 bbp_state;
u8 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_USB_BUSY_COUNT; i++) {
reg2 = rt2500usb_register_read(rt2x00dev, MAC_CSR17);
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_IRQ_ON:
case STATE_RADIO_IRQ_OFF:
/* No support, but no error either */
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;
}
if (unlikely(retval))
rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n",
state, retval);
return retval;
}
/*
* TX descriptor initialization
*/
static void rt2500usb_write_tx_desc(struct queue_entry *entry,
struct txentry_desc *txdesc)
{
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
__le32 *txd = (__le32 *) entry->skb->data;
u32 word;
/*
* Start writing the descriptor words.
*/
word = rt2x00_desc_read(txd, 0);
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->u.plcp.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);
word = rt2x00_desc_read(txd, 1);
rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, txdesc->iv_offset);
rt2x00_set_field32(&word, TXD_W1_AIFS, entry->queue->aifs);
rt2x00_set_field32(&word, TXD_W1_CWMIN, entry->queue->cw_min);
rt2x00_set_field32(&word, TXD_W1_CWMAX, entry->queue->cw_max);
rt2x00_desc_write(txd, 1, word);
word = rt2x00_desc_read(txd, 2);
rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->u.plcp.signal);
rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->u.plcp.service);
rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW,
txdesc->u.plcp.length_low);
rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH,
txdesc->u.plcp.length_high);
rt2x00_desc_write(txd, 2, word);
if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) {
_rt2x00_desc_write(txd, 3, skbdesc->iv[0]);
_rt2x00_desc_write(txd, 4, skbdesc->iv[1]);
}
/*
* Register descriptor details in skb frame descriptor.
*/
skbdesc->flags |= SKBDESC_DESC_IN_SKB;
skbdesc->desc = txd;
skbdesc->desc_len = TXD_DESC_SIZE;
}
/*
* TX data initialization
*/
static void rt2500usb_beacondone(struct urb *urb);
static void rt2500usb_write_beacon(struct queue_entry *entry,
struct txentry_desc *txdesc)
{
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;
int pipe = usb_sndbulkpipe(usb_dev, entry->queue->usb_endpoint);
int length;
u16 reg, reg0;
/*
* Disable beaconing while we are reloading the beacon data,
* otherwise we might be sending out invalid data.
*/
reg = rt2500usb_register_read(rt2x00dev, TXRX_CSR19);
rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
/*
* 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);
/*
* Write the TX descriptor for the beacon.
*/
rt2500usb_write_tx_desc(entry, txdesc);
/*
* Dump beacon to userspace through debugfs.
*/
rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry);
/*
* 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.
*/
length = rt2x00dev->ops->lib->get_tx_data_len(entry);
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);
/*
* 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);
}
static int rt2500usb_get_tx_data_len(struct queue_entry *entry)
{
int length;
/*
* The length _must_ be a multiple of 2,
* but it must _not_ be a multiple of the USB packet size.
*/
length = roundup(entry->skb->len, 2);
length += (2 * !(length % entry->queue->usb_maxpacket));
return length;
}
/*
* RX control handlers
*/
static void rt2500usb_fill_rxdone(struct queue_entry *entry,
struct rxdone_entry_desc *rxdesc)
{
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
struct queue_entry_priv_usb *entry_priv = entry->priv_data;
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
__le32 *rxd =
(__le32 *)(entry->skb->data +
(entry_priv->urb->actual_length -
entry->queue->desc_size));
u32 word0;
u32 word1;
/*
* Copy descriptor to the skbdesc->desc buffer, making it safe from moving of
* frame data in rt2x00usb.
*/
memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
rxd = (__le32 *)skbdesc->desc;
/*
* It is now safe to read the descriptor on all architectures.
*/
word0 = rt2x00_desc_read(rxd, 0);
word1 = rt2x00_desc_read(rxd, 1);
if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
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;
if (rxdesc->cipher != CIPHER_NONE) {
rxdesc->iv[0] = _rt2x00_desc_read(rxd, 2);
rxdesc->iv[1] = _rt2x00_desc_read(rxd, 3);
rxdesc->dev_flags |= RXDONE_CRYPTO_IV;
/* ICV is located at the end of frame */
rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
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;
}
/*
* Obtain the status about this packet.
* 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.
*/
rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
rxdesc->rssi =
rt2x00_get_field32(word1, RXD_W1_RSSI) - rt2x00dev->rssi_offset;
rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
if (rt2x00_get_field32(word0, RXD_W0_OFDM))
rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
else
rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
rxdesc->dev_flags |= RXDONE_MY_BSS;
/*
* Adjust the skb memory window to the frame boundaries.
*/
skb_trim(entry->skb, rxdesc->size);
}
/*
* Interrupt functions.
*/
static void rt2500usb_beacondone(struct urb *urb)
{
struct queue_entry *entry = (struct queue_entry *)urb->context;
struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &entry->queue->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 (bcn_priv->guardian_urb == urb) {
usb_submit_urb(bcn_priv->urb, GFP_ATOMIC);
} else if (bcn_priv->urb == urb) {
dev_kfree_skb(entry->skb);
entry->skb = NULL;
}
}
/*
* Device probe functions.
*/
static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
{
u16 word;
u8 *mac;
u8 bbp;
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);
rt2x00lib_set_mac_address(rt2x00dev, mac);
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA);
if (word == 0xffff) {
rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
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);
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);
rt2x00_eeprom_dbg(rt2x00dev, "Antenna: 0x%04x\n", word);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC);
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);
rt2x00_eeprom_dbg(rt2x00dev, "NIC: 0x%04x\n", word);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET);
if (word == 0xffff) {
rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
DEFAULT_RSSI_OFFSET);
rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
rt2x00_eeprom_dbg(rt2x00dev, "Calibrate offset: 0x%04x\n",
word);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE);
if (word == 0xffff) {
rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
rt2x00_eeprom_dbg(rt2x00dev, "BBPtune: 0x%04x\n", word);
}
/*
* Switch lower vgc bound to current BBP R17 value,
* lower the value a bit for better quality.
*/
bbp = rt2500usb_bbp_read(rt2x00dev, 17);
bbp -= 6;
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC);
if (word == 0xffff) {
rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
rt2x00_eeprom_dbg(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
} else {
rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17);
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);
rt2x00_eeprom_dbg(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24);
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);
rt2x00_eeprom_dbg(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25);
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);
rt2x00_eeprom_dbg(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61);
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);
rt2x00_eeprom_dbg(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.
*/
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA);
/*
* Identify RF chipset.
*/
value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
reg = rt2500usb_register_read(rt2x00dev, MAC_CSR0);
rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
if (((reg & 0xfff0) != 0) || ((reg & 0x0000000f) == 0)) {
rt2x00_err(rt2x00dev, "Invalid RT chipset detected\n");
return -ENODEV;
}
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)) {
rt2x00_err(rt2x00dev, "Invalid RF chipset detected\n");
return -ENODEV;
}
/*
* Identify default antenna configuration.
*/
rt2x00dev->default_ant.tx =
rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
rt2x00dev->default_ant.rx =
rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
/*
* 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;
/*
* Store led mode, for correct led behaviour.
*/
#ifdef CONFIG_RT2X00_LIB_LEDS
value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
if (value == LED_MODE_TXRX_ACTIVITY ||
value == LED_MODE_DEFAULT ||
value == LED_MODE_ASUS)
rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
LED_TYPE_ACTIVITY);
#endif /* CONFIG_RT2X00_LIB_LEDS */
/*
* Detect if this device has an hardware controlled radio.
*/
if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
__set_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags);
/*
* Read the RSSI <-> dBm offset information.
*/
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET);
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 },
};
static int rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
{
struct hw_mode_spec *spec = &rt2x00dev->spec;
struct channel_info *info;
u8 *tx_power;
unsigned int i;
/*
* Initialize all hw fields.
*
* Don't set IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING unless we are
* capable of sending the buffered frames out after the DTIM
* transmission using rt2x00lib_beacondone. This will send out
* multicast and broadcast traffic immediately instead of buffering it
* infinitly and thus dropping it after some time.
*/
ieee80211_hw_set(rt2x00dev->hw, PS_NULLFUNC_STACK);
ieee80211_hw_set(rt2x00dev->hw, SUPPORTS_PS);
ieee80211_hw_set(rt2x00dev->hw, RX_INCLUDES_FCS);
ieee80211_hw_set(rt2x00dev->hw, SIGNAL_DBM);
/*
* Disable powersaving as default.
*/
rt2x00dev->hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
rt2x00_eeprom_addr(rt2x00dev,
EEPROM_MAC_ADDR_0));
/*
* Initialize hw_mode information.
*/
spec->supported_bands = SUPPORT_BAND_2GHZ;
spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
if (rt2x00_rf(rt2x00dev, RF2522)) {
spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
spec->channels = rf_vals_bg_2522;
} else if (rt2x00_rf(rt2x00dev, RF2523)) {
spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
spec->channels = rf_vals_bg_2523;
} else if (rt2x00_rf(rt2x00dev, RF2524)) {
spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
spec->channels = rf_vals_bg_2524;
} else if (rt2x00_rf(rt2x00dev, RF2525)) {
spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
spec->channels = rf_vals_bg_2525;
} else if (rt2x00_rf(rt2x00dev, RF2525E)) {
spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
spec->channels = rf_vals_bg_2525e;
} else if (rt2x00_rf(rt2x00dev, RF5222)) {
spec->supported_bands |= SUPPORT_BAND_5GHZ;
spec->num_channels = ARRAY_SIZE(rf_vals_5222);
spec->channels = rf_vals_5222;
}
/*
* Create channel information array
*/
info = kcalloc(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].max_power = MAX_TXPOWER;
info[i].default_power1 = TXPOWER_FROM_DEV(tx_power[i]);
}
if (spec->num_channels > 14) {
for (i = 14; i < spec->num_channels; i++) {
info[i].max_power = MAX_TXPOWER;
info[i].default_power1 = DEFAULT_TXPOWER;
}
}
return 0;
}
static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
{
int retval;
u16 reg;
/*
* Allocate eeprom data.
*/
retval = rt2500usb_validate_eeprom(rt2x00dev);
if (retval)
return retval;
retval = rt2500usb_init_eeprom(rt2x00dev);
if (retval)
return retval;
/*
* Enable rfkill polling by setting GPIO direction of the
* rfkill switch GPIO pin correctly.
*/
reg = rt2500usb_register_read(rt2x00dev, MAC_CSR19);
rt2x00_set_field16(&reg, MAC_CSR19_DIR0, 0);
rt2500usb_register_write(rt2x00dev, MAC_CSR19, reg);
/*
* Initialize hw specifications.
*/
retval = rt2500usb_probe_hw_mode(rt2x00dev);
if (retval)
return retval;
/*
* This device requires the atim queue
*/
__set_bit(REQUIRE_ATIM_QUEUE, &rt2x00dev->cap_flags);
__set_bit(REQUIRE_BEACON_GUARD, &rt2x00dev->cap_flags);
if (!modparam_nohwcrypt) {
__set_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags);
__set_bit(REQUIRE_COPY_IV, &rt2x00dev->cap_flags);
}
__set_bit(REQUIRE_SW_SEQNO, &rt2x00dev->cap_flags);
__set_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags);
/*
* Set the rssi offset.
*/
rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
return 0;
}
static const struct ieee80211_ops rt2500usb_mac80211_ops = {
.tx = rt2x00mac_tx,
.start = rt2x00mac_start,
.stop = rt2x00mac_stop,
.add_interface = rt2x00mac_add_interface,
.remove_interface = rt2x00mac_remove_interface,
.config = rt2x00mac_config,
.configure_filter = rt2x00mac_configure_filter,
.set_tim = rt2x00mac_set_tim,
.set_key = rt2x00mac_set_key,
.sw_scan_start = rt2x00mac_sw_scan_start,
.sw_scan_complete = rt2x00mac_sw_scan_complete,
.get_stats = rt2x00mac_get_stats,
.bss_info_changed = rt2x00mac_bss_info_changed,
.conf_tx = rt2x00mac_conf_tx,
.rfkill_poll = rt2x00mac_rfkill_poll,
.flush = rt2x00mac_flush,
.set_antenna = rt2x00mac_set_antenna,
.get_antenna = rt2x00mac_get_antenna,
.get_ringparam = rt2x00mac_get_ringparam,
.tx_frames_pending = rt2x00mac_tx_frames_pending,
};
static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
.probe_hw = rt2500usb_probe_hw,
.initialize = rt2x00usb_initialize,
.uninitialize = rt2x00usb_uninitialize,
.clear_entry = rt2x00usb_clear_entry,
.set_device_state = rt2500usb_set_device_state,
.rfkill_poll = rt2500usb_rfkill_poll,
.link_stats = rt2500usb_link_stats,
.reset_tuner = rt2500usb_reset_tuner,
.watchdog = rt2x00usb_watchdog,
.start_queue = rt2500usb_start_queue,
.kick_queue = rt2x00usb_kick_queue,
.stop_queue = rt2500usb_stop_queue,
.flush_queue = rt2x00usb_flush_queue,
.write_tx_desc = rt2500usb_write_tx_desc,
.write_beacon = rt2500usb_write_beacon,
.get_tx_data_len = rt2500usb_get_tx_data_len,
.fill_rxdone = rt2500usb_fill_rxdone,
.config_shared_key = rt2500usb_config_key,
.config_pairwise_key = rt2500usb_config_key,
.config_filter = rt2500usb_config_filter,
.config_intf = rt2500usb_config_intf,
.config_erp = rt2500usb_config_erp,
.config_ant = rt2500usb_config_ant,
.config = rt2500usb_config,
};
static void rt2500usb_queue_init(struct data_queue *queue)
{
switch (queue->qid) {
case QID_RX:
queue->limit = 32;
queue->data_size = DATA_FRAME_SIZE;
queue->desc_size = RXD_DESC_SIZE;
queue->priv_size = sizeof(struct queue_entry_priv_usb);
break;
case QID_AC_VO:
case QID_AC_VI:
case QID_AC_BE:
case QID_AC_BK:
queue->limit = 32;
queue->data_size = DATA_FRAME_SIZE;
queue->desc_size = TXD_DESC_SIZE;
queue->priv_size = sizeof(struct queue_entry_priv_usb);
break;
case QID_BEACON:
queue->limit = 1;
queue->data_size = MGMT_FRAME_SIZE;
queue->desc_size = TXD_DESC_SIZE;
queue->priv_size = sizeof(struct queue_entry_priv_usb_bcn);
break;
case QID_ATIM:
queue->limit = 8;
queue->data_size = DATA_FRAME_SIZE;
queue->desc_size = TXD_DESC_SIZE;
queue->priv_size = sizeof(struct queue_entry_priv_usb);
break;
default:
BUG();
break;
}
}
static const struct rt2x00_ops rt2500usb_ops = {
.name = KBUILD_MODNAME,
.max_ap_intf = 1,
.eeprom_size = EEPROM_SIZE,
.rf_size = RF_SIZE,
.tx_queues = NUM_TX_QUEUES,
.queue_init = rt2500usb_queue_init,
.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 const struct usb_device_id rt2500usb_device_table[] = {
/* ASUS */
{ USB_DEVICE(0x0b05, 0x1706) },
{ USB_DEVICE(0x0b05, 0x1707) },
/* Belkin */
{ USB_DEVICE(0x050d, 0x7050) }, /* FCC ID: K7SF5D7050A ver. 2.x */
{ USB_DEVICE(0x050d, 0x7051) },
/* Cisco Systems */
{ USB_DEVICE(0x13b1, 0x000d) },
{ USB_DEVICE(0x13b1, 0x0011) },
{ USB_DEVICE(0x13b1, 0x001a) },
/* Conceptronic */
{ USB_DEVICE(0x14b2, 0x3c02) },
/* D-LINK */
{ USB_DEVICE(0x2001, 0x3c00) },
/* Gigabyte */
{ USB_DEVICE(0x1044, 0x8001) },
{ USB_DEVICE(0x1044, 0x8007) },
/* Hercules */
{ USB_DEVICE(0x06f8, 0xe000) },
/* Melco */
{ USB_DEVICE(0x0411, 0x005e) },
{ USB_DEVICE(0x0411, 0x0066) },
{ USB_DEVICE(0x0411, 0x0067) },
{ USB_DEVICE(0x0411, 0x008b) },
{ USB_DEVICE(0x0411, 0x0097) },
/* MSI */
{ USB_DEVICE(0x0db0, 0x6861) },
{ USB_DEVICE(0x0db0, 0x6865) },
{ USB_DEVICE(0x0db0, 0x6869) },
/* Ralink */
{ USB_DEVICE(0x148f, 0x1706) },
{ USB_DEVICE(0x148f, 0x2570) },
{ USB_DEVICE(0x148f, 0x9020) },
/* Sagem */
{ USB_DEVICE(0x079b, 0x004b) },
/* Siemens */
{ USB_DEVICE(0x0681, 0x3c06) },
/* SMC */
{ USB_DEVICE(0x0707, 0xee13) },
/* Spairon */
{ USB_DEVICE(0x114b, 0x0110) },
/* SURECOM */
{ USB_DEVICE(0x0769, 0x11f3) },
/* Trust */
{ USB_DEVICE(0x0eb0, 0x9020) },
/* VTech */
{ USB_DEVICE(0x0f88, 0x3012) },
/* Zinwell */
{ USB_DEVICE(0x5a57, 0x0260) },
{ 0, }
};
MODULE_AUTHOR(DRV_PROJECT);
MODULE_VERSION(DRV_VERSION);
MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
MODULE_LICENSE("GPL");
static int rt2500usb_probe(struct usb_interface *usb_intf,
const struct usb_device_id *id)
{
return rt2x00usb_probe(usb_intf, &rt2500usb_ops);
}
static struct usb_driver rt2500usb_driver = {
.name = KBUILD_MODNAME,
.id_table = rt2500usb_device_table,
.probe = rt2500usb_probe,
.disconnect = rt2x00usb_disconnect,
.suspend = rt2x00usb_suspend,
.resume = rt2x00usb_resume,
.reset_resume = rt2x00usb_resume,
.disable_hub_initiated_lpm = 1,
};
module_usb_driver(rt2500usb_driver);