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android-kvm / linux / a25606c845856e5ca5ed54d23cab077e3a49bf10 / . / drivers / net / wireless / rt2x00 / rt73usb.c
blob: 46b040bf62decdbc93abf6db706273aefa0adbcf [file] [log] [blame]
/*
Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
<http://rt2x00.serialmonkey.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the
Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
Module: rt73usb
Abstract: rt73usb device specific routines.
Supported chipsets: rt2571W & rt2671.
*/
#include <linux/crc-itu-t.h>
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/usb.h>
#include "rt2x00.h"
#include "rt2x00usb.h"
#include "rt73usb.h"
/*
* Register access.
* All access to the CSR registers will go through the methods
* rt73usb_register_read and rt73usb_register_write.
* BBP and RF register require indirect register access,
* and use the CSR registers BBPCSR and RFCSR to achieve this.
* These indirect registers work with busy bits,
* and we will try maximal REGISTER_BUSY_COUNT times to access
* the register while taking a REGISTER_BUSY_DELAY us delay
* between each attampt. When the busy bit is still set at that time,
* the access attempt is considered to have failed,
* and we will print an error.
* The _lock versions must be used if you already hold the usb_cache_mutex
*/
static inline void rt73usb_register_read(struct rt2x00_dev *rt2x00dev,
const unsigned int offset, u32 *value)
{
__le32 reg;
rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
USB_VENDOR_REQUEST_IN, offset,
&reg, sizeof(u32), REGISTER_TIMEOUT);
*value = le32_to_cpu(reg);
}
static inline void rt73usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
const unsigned int offset, u32 *value)
{
__le32 reg;
rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
USB_VENDOR_REQUEST_IN, offset,
&reg, sizeof(u32), REGISTER_TIMEOUT);
*value = le32_to_cpu(reg);
}
static inline void rt73usb_register_multiread(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
void *value, const u32 length)
{
int timeout = REGISTER_TIMEOUT * (length / sizeof(u32));
rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
USB_VENDOR_REQUEST_IN, offset,
value, length, timeout);
}
static inline void rt73usb_register_write(struct rt2x00_dev *rt2x00dev,
const unsigned int offset, u32 value)
{
__le32 reg = cpu_to_le32(value);
rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
USB_VENDOR_REQUEST_OUT, offset,
&reg, sizeof(u32), REGISTER_TIMEOUT);
}
static inline void rt73usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
const unsigned int offset, u32 value)
{
__le32 reg = cpu_to_le32(value);
rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
USB_VENDOR_REQUEST_OUT, offset,
&reg, sizeof(u32), REGISTER_TIMEOUT);
}
static inline void rt73usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
const unsigned int offset,
void *value, const u32 length)
{
int timeout = REGISTER_TIMEOUT * (length / sizeof(u32));
rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
USB_VENDOR_REQUEST_OUT, offset,
value, length, timeout);
}
static u32 rt73usb_bbp_check(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
unsigned int i;
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
rt73usb_register_read_lock(rt2x00dev, PHY_CSR3, &reg);
if (!rt2x00_get_field32(reg, PHY_CSR3_BUSY))
break;
udelay(REGISTER_BUSY_DELAY);
}
return reg;
}
static void rt73usb_bbp_write(struct rt2x00_dev *rt2x00dev,
const unsigned int word, const u8 value)
{
u32 reg;
mutex_lock(&rt2x00dev->usb_cache_mutex);
/*
* Wait until the BBP becomes ready.
*/
reg = rt73usb_bbp_check(rt2x00dev);
if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
ERROR(rt2x00dev, "PHY_CSR3 register busy. Write failed.\n");
mutex_unlock(&rt2x00dev->usb_cache_mutex);
return;
}
/*
* Write the data into the BBP.
*/
reg = 0;
rt2x00_set_field32(&reg, PHY_CSR3_VALUE, value);
rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, word);
rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 0);
rt73usb_register_write_lock(rt2x00dev, PHY_CSR3, reg);
mutex_unlock(&rt2x00dev->usb_cache_mutex);
}
static void rt73usb_bbp_read(struct rt2x00_dev *rt2x00dev,
const unsigned int word, u8 *value)
{
u32 reg;
mutex_lock(&rt2x00dev->usb_cache_mutex);
/*
* Wait until the BBP becomes ready.
*/
reg = rt73usb_bbp_check(rt2x00dev);
if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
mutex_unlock(&rt2x00dev->usb_cache_mutex);
return;
}
/*
* Write the request into the BBP.
*/
reg = 0;
rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, word);
rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 1);
rt73usb_register_write_lock(rt2x00dev, PHY_CSR3, reg);
/*
* Wait until the BBP becomes ready.
*/
reg = rt73usb_bbp_check(rt2x00dev);
if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
*value = 0xff;
return;
}
*value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
mutex_unlock(&rt2x00dev->usb_cache_mutex);
}
static void rt73usb_rf_write(struct rt2x00_dev *rt2x00dev,
const unsigned int word, const u32 value)
{
u32 reg;
unsigned int i;
if (!word)
return;
mutex_lock(&rt2x00dev->usb_cache_mutex);
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
rt73usb_register_read_lock(rt2x00dev, PHY_CSR4, &reg);
if (!rt2x00_get_field32(reg, PHY_CSR4_BUSY))
goto rf_write;
udelay(REGISTER_BUSY_DELAY);
}
mutex_unlock(&rt2x00dev->usb_cache_mutex);
ERROR(rt2x00dev, "PHY_CSR4 register busy. Write failed.\n");
return;
rf_write:
reg = 0;
rt2x00_set_field32(&reg, PHY_CSR4_VALUE, value);
/*
* RF5225 and RF2527 contain 21 bits per RF register value,
* all others contain 20 bits.
*/
rt2x00_set_field32(&reg, PHY_CSR4_NUMBER_OF_BITS,
20 + (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
rt2x00_rf(&rt2x00dev->chip, RF2527)));
rt2x00_set_field32(&reg, PHY_CSR4_IF_SELECT, 0);
rt2x00_set_field32(&reg, PHY_CSR4_BUSY, 1);
rt73usb_register_write_lock(rt2x00dev, PHY_CSR4, reg);
rt2x00_rf_write(rt2x00dev, word, value);
mutex_unlock(&rt2x00dev->usb_cache_mutex);
}
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
#define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u32)) )
static void rt73usb_read_csr(struct rt2x00_dev *rt2x00dev,
const unsigned int word, u32 *data)
{
rt73usb_register_read(rt2x00dev, CSR_OFFSET(word), data);
}
static void rt73usb_write_csr(struct rt2x00_dev *rt2x00dev,
const unsigned int word, u32 data)
{
rt73usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
}
static const struct rt2x00debug rt73usb_rt2x00debug = {
.owner = THIS_MODULE,
.csr = {
.read = rt73usb_read_csr,
.write = rt73usb_write_csr,
.word_size = sizeof(u32),
.word_count = CSR_REG_SIZE / sizeof(u32),
},
.eeprom = {
.read = rt2x00_eeprom_read,
.write = rt2x00_eeprom_write,
.word_size = sizeof(u16),
.word_count = EEPROM_SIZE / sizeof(u16),
},
.bbp = {
.read = rt73usb_bbp_read,
.write = rt73usb_bbp_write,
.word_size = sizeof(u8),
.word_count = BBP_SIZE / sizeof(u8),
},
.rf = {
.read = rt2x00_rf_read,
.write = rt73usb_rf_write,
.word_size = sizeof(u32),
.word_count = RF_SIZE / sizeof(u32),
},
};
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
#ifdef CONFIG_RT73USB_LEDS
static void rt73usb_led_brightness(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;
unsigned int a_mode =
(enabled && led->rt2x00dev->curr_band == IEEE80211_BAND_5GHZ);
unsigned int bg_mode =
(enabled && led->rt2x00dev->curr_band == IEEE80211_BAND_2GHZ);
if (in_atomic()) {
NOTICE(led->rt2x00dev,
"Ignoring LED brightness command for led %d\n",
led->type);
return;
}
if (led->type == LED_TYPE_RADIO) {
rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
MCU_LEDCS_RADIO_STATUS, enabled);
rt2x00usb_vendor_request_sw(led->rt2x00dev, USB_LED_CONTROL,
0, led->rt2x00dev->led_mcu_reg,
REGISTER_TIMEOUT);
} else if (led->type == LED_TYPE_ASSOC) {
rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
MCU_LEDCS_LINK_BG_STATUS, bg_mode);
rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
MCU_LEDCS_LINK_A_STATUS, a_mode);
rt2x00usb_vendor_request_sw(led->rt2x00dev, USB_LED_CONTROL,
0, led->rt2x00dev->led_mcu_reg,
REGISTER_TIMEOUT);
} else if (led->type == LED_TYPE_QUALITY) {
/*
* The brightness is divided into 6 levels (0 - 5),
* this means we need to convert the brightness
* argument into the matching level within that range.
*/
rt2x00usb_vendor_request_sw(led->rt2x00dev, USB_LED_CONTROL,
brightness / (LED_FULL / 6),
led->rt2x00dev->led_mcu_reg,
REGISTER_TIMEOUT);
}
}
#else
#define rt73usb_led_brightness NULL
#endif /* CONFIG_RT73USB_LEDS */
/*
* Configuration handlers.
*/
static void rt73usb_config_intf(struct rt2x00_dev *rt2x00dev,
struct rt2x00_intf *intf,
struct rt2x00intf_conf *conf,
const unsigned int flags)
{
unsigned int beacon_base;
u32 reg;
if (flags & CONFIG_UPDATE_TYPE) {
/*
* Clear current synchronisation setup.
* For the Beacon base registers we only need to clear
* the first byte since that byte contains the VALID and OWNER
* bits which (when set to 0) will invalidate the entire beacon.
*/
beacon_base = HW_BEACON_OFFSET(intf->beacon->entry_idx);
rt73usb_register_write(rt2x00dev, beacon_base, 0);
/*
* Enable synchronisation.
*/
rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, conf->sync);
rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
}
if (flags & CONFIG_UPDATE_MAC) {
reg = le32_to_cpu(conf->mac[1]);
rt2x00_set_field32(&reg, MAC_CSR3_UNICAST_TO_ME_MASK, 0xff);
conf->mac[1] = cpu_to_le32(reg);
rt73usb_register_multiwrite(rt2x00dev, MAC_CSR2,
conf->mac, sizeof(conf->mac));
}
if (flags & CONFIG_UPDATE_BSSID) {
reg = le32_to_cpu(conf->bssid[1]);
rt2x00_set_field32(&reg, MAC_CSR5_BSS_ID_MASK, 3);
conf->bssid[1] = cpu_to_le32(reg);
rt73usb_register_multiwrite(rt2x00dev, MAC_CSR4,
conf->bssid, sizeof(conf->bssid));
}
}
static int rt73usb_config_erp(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_erp *erp)
{
u32 reg;
/*
* When in atomic context, we should let rt2x00lib
* try this configuration again later.
*/
if (in_atomic())
return -EAGAIN;
rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
rt2x00_set_field32(&reg, TXRX_CSR0_RX_ACK_TIMEOUT, erp->ack_timeout);
rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE,
!!erp->short_preamble);
rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
return 0;
}
static void rt73usb_config_phymode(struct rt2x00_dev *rt2x00dev,
const int basic_rate_mask)
{
rt73usb_register_write(rt2x00dev, TXRX_CSR5, basic_rate_mask);
}
static void rt73usb_config_channel(struct rt2x00_dev *rt2x00dev,
struct rf_channel *rf, const int txpower)
{
u8 r3;
u8 r94;
u8 smart;
rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
rt2x00_set_field32(&rf->rf4, RF4_FREQ_OFFSET, rt2x00dev->freq_offset);
smart = !(rt2x00_rf(&rt2x00dev->chip, RF5225) ||
rt2x00_rf(&rt2x00dev->chip, RF2527));
rt73usb_bbp_read(rt2x00dev, 3, &r3);
rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, smart);
rt73usb_bbp_write(rt2x00dev, 3, r3);
r94 = 6;
if (txpower > MAX_TXPOWER && txpower <= (MAX_TXPOWER + r94))
r94 += txpower - MAX_TXPOWER;
else if (txpower < MIN_TXPOWER && txpower >= (MIN_TXPOWER - r94))
r94 += txpower;
rt73usb_bbp_write(rt2x00dev, 94, r94);
rt73usb_rf_write(rt2x00dev, 1, rf->rf1);
rt73usb_rf_write(rt2x00dev, 2, rf->rf2);
rt73usb_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
rt73usb_rf_write(rt2x00dev, 4, rf->rf4);
rt73usb_rf_write(rt2x00dev, 1, rf->rf1);
rt73usb_rf_write(rt2x00dev, 2, rf->rf2);
rt73usb_rf_write(rt2x00dev, 3, rf->rf3 | 0x00000004);
rt73usb_rf_write(rt2x00dev, 4, rf->rf4);
rt73usb_rf_write(rt2x00dev, 1, rf->rf1);
rt73usb_rf_write(rt2x00dev, 2, rf->rf2);
rt73usb_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
rt73usb_rf_write(rt2x00dev, 4, rf->rf4);
udelay(10);
}
static void rt73usb_config_txpower(struct rt2x00_dev *rt2x00dev,
const int txpower)
{
struct rf_channel rf;
rt2x00_rf_read(rt2x00dev, 1, &rf.rf1);
rt2x00_rf_read(rt2x00dev, 2, &rf.rf2);
rt2x00_rf_read(rt2x00dev, 3, &rf.rf3);
rt2x00_rf_read(rt2x00dev, 4, &rf.rf4);
rt73usb_config_channel(rt2x00dev, &rf, txpower);
}
static void rt73usb_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
struct antenna_setup *ant)
{
u8 r3;
u8 r4;
u8 r77;
u8 temp;
rt73usb_bbp_read(rt2x00dev, 3, &r3);
rt73usb_bbp_read(rt2x00dev, 4, &r4);
rt73usb_bbp_read(rt2x00dev, 77, &r77);
rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
/*
* Configure the RX antenna.
*/
switch (ant->rx) {
case ANTENNA_HW_DIVERSITY:
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 2);
temp = !test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags)
&& (rt2x00dev->curr_band != IEEE80211_BAND_5GHZ);
rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, temp);
break;
case ANTENNA_A:
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ)
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
else
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
break;
case ANTENNA_B:
default:
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ)
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
else
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
break;
}
rt73usb_bbp_write(rt2x00dev, 77, r77);
rt73usb_bbp_write(rt2x00dev, 3, r3);
rt73usb_bbp_write(rt2x00dev, 4, r4);
}
static void rt73usb_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
struct antenna_setup *ant)
{
u8 r3;
u8 r4;
u8 r77;
rt73usb_bbp_read(rt2x00dev, 3, &r3);
rt73usb_bbp_read(rt2x00dev, 4, &r4);
rt73usb_bbp_read(rt2x00dev, 77, &r77);
rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
!test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
/*
* Configure the RX antenna.
*/
switch (ant->rx) {
case ANTENNA_HW_DIVERSITY:
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 2);
break;
case ANTENNA_A:
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
break;
case ANTENNA_B:
default:
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
break;
}
rt73usb_bbp_write(rt2x00dev, 77, r77);
rt73usb_bbp_write(rt2x00dev, 3, r3);
rt73usb_bbp_write(rt2x00dev, 4, r4);
}
struct antenna_sel {
u8 word;
/*
* value[0] -> non-LNA
* value[1] -> LNA
*/
u8 value[2];
};
static const struct antenna_sel antenna_sel_a[] = {
{ 96, { 0x58, 0x78 } },
{ 104, { 0x38, 0x48 } },
{ 75, { 0xfe, 0x80 } },
{ 86, { 0xfe, 0x80 } },
{ 88, { 0xfe, 0x80 } },
{ 35, { 0x60, 0x60 } },
{ 97, { 0x58, 0x58 } },
{ 98, { 0x58, 0x58 } },
};
static const struct antenna_sel antenna_sel_bg[] = {
{ 96, { 0x48, 0x68 } },
{ 104, { 0x2c, 0x3c } },
{ 75, { 0xfe, 0x80 } },
{ 86, { 0xfe, 0x80 } },
{ 88, { 0xfe, 0x80 } },
{ 35, { 0x50, 0x50 } },
{ 97, { 0x48, 0x48 } },
{ 98, { 0x48, 0x48 } },
};
static void rt73usb_config_antenna(struct rt2x00_dev *rt2x00dev,
struct antenna_setup *ant)
{
const struct antenna_sel *sel;
unsigned int lna;
unsigned int i;
u32 reg;
/*
* 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);
if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
sel = antenna_sel_a;
lna = test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
} else {
sel = antenna_sel_bg;
lna = test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
}
for (i = 0; i < ARRAY_SIZE(antenna_sel_a); i++)
rt73usb_bbp_write(rt2x00dev, sel[i].word, sel[i].value[lna]);
rt73usb_register_read(rt2x00dev, PHY_CSR0, &reg);
rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG,
(rt2x00dev->curr_band == IEEE80211_BAND_2GHZ));
rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A,
(rt2x00dev->curr_band == IEEE80211_BAND_5GHZ));
rt73usb_register_write(rt2x00dev, PHY_CSR0, reg);
if (rt2x00_rf(&rt2x00dev->chip, RF5226) ||
rt2x00_rf(&rt2x00dev->chip, RF5225))
rt73usb_config_antenna_5x(rt2x00dev, ant);
else if (rt2x00_rf(&rt2x00dev->chip, RF2528) ||
rt2x00_rf(&rt2x00dev->chip, RF2527))
rt73usb_config_antenna_2x(rt2x00dev, ant);
}
static void rt73usb_config_duration(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_conf *libconf)
{
u32 reg;
rt73usb_register_read(rt2x00dev, MAC_CSR9, &reg);
rt2x00_set_field32(&reg, MAC_CSR9_SLOT_TIME, libconf->slot_time);
rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
rt73usb_register_read(rt2x00dev, MAC_CSR8, &reg);
rt2x00_set_field32(&reg, MAC_CSR8_SIFS, libconf->sifs);
rt2x00_set_field32(&reg, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
rt2x00_set_field32(&reg, MAC_CSR8_EIFS, libconf->eifs);
rt73usb_register_write(rt2x00dev, MAC_CSR8, reg);
rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
rt2x00_set_field32(&reg, TXRX_CSR0_TSF_OFFSET, IEEE80211_HEADER);
rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_ENABLE, 1);
rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_INTERVAL,
libconf->conf->beacon_int * 16);
rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
}
static void rt73usb_config(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_conf *libconf,
const unsigned int flags)
{
if (flags & CONFIG_UPDATE_PHYMODE)
rt73usb_config_phymode(rt2x00dev, libconf->basic_rates);
if (flags & CONFIG_UPDATE_CHANNEL)
rt73usb_config_channel(rt2x00dev, &libconf->rf,
libconf->conf->power_level);
if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
rt73usb_config_txpower(rt2x00dev, libconf->conf->power_level);
if (flags & CONFIG_UPDATE_ANTENNA)
rt73usb_config_antenna(rt2x00dev, &libconf->ant);
if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
rt73usb_config_duration(rt2x00dev, libconf);
}
/*
* Link tuning
*/
static void rt73usb_link_stats(struct rt2x00_dev *rt2x00dev,
struct link_qual *qual)
{
u32 reg;
/*
* Update FCS error count from register.
*/
rt73usb_register_read(rt2x00dev, STA_CSR0, &reg);
qual->rx_failed = rt2x00_get_field32(reg, STA_CSR0_FCS_ERROR);
/*
* Update False CCA count from register.
*/
rt73usb_register_read(rt2x00dev, STA_CSR1, &reg);
qual->false_cca = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
}
static void rt73usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
{
rt73usb_bbp_write(rt2x00dev, 17, 0x20);
rt2x00dev->link.vgc_level = 0x20;
}
static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev)
{
int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
u8 r17;
u8 up_bound;
u8 low_bound;
rt73usb_bbp_read(rt2x00dev, 17, &r17);
/*
* Determine r17 bounds.
*/
if (rt2x00dev->rx_status.band == IEEE80211_BAND_5GHZ) {
low_bound = 0x28;
up_bound = 0x48;
if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) {
low_bound += 0x10;
up_bound += 0x10;
}
} else {
if (rssi > -82) {
low_bound = 0x1c;
up_bound = 0x40;
} else if (rssi > -84) {
low_bound = 0x1c;
up_bound = 0x20;
} else {
low_bound = 0x1c;
up_bound = 0x1c;
}
if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags)) {
low_bound += 0x14;
up_bound += 0x10;
}
}
/*
* If we are not associated, we should go straight to the
* dynamic CCA tuning.
*/
if (!rt2x00dev->intf_associated)
goto dynamic_cca_tune;
/*
* Special big-R17 for very short distance
*/
if (rssi > -35) {
if (r17 != 0x60)
rt73usb_bbp_write(rt2x00dev, 17, 0x60);
return;
}
/*
* Special big-R17 for short distance
*/
if (rssi >= -58) {
if (r17 != up_bound)
rt73usb_bbp_write(rt2x00dev, 17, up_bound);
return;
}
/*
* Special big-R17 for middle-short distance
*/
if (rssi >= -66) {
low_bound += 0x10;
if (r17 != low_bound)
rt73usb_bbp_write(rt2x00dev, 17, low_bound);
return;
}
/*
* Special mid-R17 for middle distance
*/
if (rssi >= -74) {
if (r17 != (low_bound + 0x10))
rt73usb_bbp_write(rt2x00dev, 17, low_bound + 0x08);
return;
}
/*
* Special case: Change up_bound based on the rssi.
* Lower up_bound when rssi is weaker then -74 dBm.
*/
up_bound -= 2 * (-74 - rssi);
if (low_bound > up_bound)
up_bound = low_bound;
if (r17 > up_bound) {
rt73usb_bbp_write(rt2x00dev, 17, up_bound);
return;
}
dynamic_cca_tune:
/*
* r17 does not yet exceed upper limit, continue and base
* the r17 tuning on the false CCA count.
*/
if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
r17 += 4;
if (r17 > up_bound)
r17 = up_bound;
rt73usb_bbp_write(rt2x00dev, 17, r17);
} else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
r17 -= 4;
if (r17 < low_bound)
r17 = low_bound;
rt73usb_bbp_write(rt2x00dev, 17, r17);
}
}
/*
* Firmware functions
*/
static char *rt73usb_get_firmware_name(struct rt2x00_dev *rt2x00dev)
{
return FIRMWARE_RT2571;
}
static u16 rt73usb_get_firmware_crc(void *data, const size_t len)
{
u16 crc;
/*
* Use the crc itu-t algorithm.
* The last 2 bytes in the firmware array are the crc checksum itself,
* this means that we should never pass those 2 bytes to the crc
* algorithm.
*/
crc = crc_itu_t(0, data, len - 2);
crc = crc_itu_t_byte(crc, 0);
crc = crc_itu_t_byte(crc, 0);
return crc;
}
static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev, void *data,
const size_t len)
{
unsigned int i;
int status;
u32 reg;
char *ptr = data;
char *cache;
int buflen;
int timeout;
/*
* Wait for stable hardware.
*/
for (i = 0; i < 100; i++) {
rt73usb_register_read(rt2x00dev, MAC_CSR0, &reg);
if (reg)
break;
msleep(1);
}
if (!reg) {
ERROR(rt2x00dev, "Unstable hardware.\n");
return -EBUSY;
}
/*
* Write firmware to device.
* We setup a seperate cache for this action,
* since we are going to write larger chunks of data
* then normally used cache size.
*/
cache = kmalloc(CSR_CACHE_SIZE_FIRMWARE, GFP_KERNEL);
if (!cache) {
ERROR(rt2x00dev, "Failed to allocate firmware cache.\n");
return -ENOMEM;
}
for (i = 0; i < len; i += CSR_CACHE_SIZE_FIRMWARE) {
buflen = min_t(int, len - i, CSR_CACHE_SIZE_FIRMWARE);
timeout = REGISTER_TIMEOUT * (buflen / sizeof(u32));
memcpy(cache, ptr, buflen);
rt2x00usb_vendor_request(rt2x00dev, USB_MULTI_WRITE,
USB_VENDOR_REQUEST_OUT,
FIRMWARE_IMAGE_BASE + i, 0,
cache, buflen, timeout);
ptr += buflen;
}
kfree(cache);
/*
* Send firmware request to device to load firmware,
* we need to specify a long timeout time.
*/
status = rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE,
0, USB_MODE_FIRMWARE,
REGISTER_TIMEOUT_FIRMWARE);
if (status < 0) {
ERROR(rt2x00dev, "Failed to write Firmware to device.\n");
return status;
}
return 0;
}
/*
* Initialization functions.
*/
static int rt73usb_init_registers(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
rt2x00_set_field32(&reg, TXRX_CSR0_AUTO_TX_SEQ, 1);
rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX, 0);
rt2x00_set_field32(&reg, TXRX_CSR0_TX_WITHOUT_WAITING, 0);
rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
rt73usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID0, 47); /* CCK Signal */
rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID0_VALID, 1);
rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID1, 30); /* Rssi */
rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID1_VALID, 1);
rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID2, 42); /* OFDM Rate */
rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID2_VALID, 1);
rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID3, 30); /* Rssi */
rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID3_VALID, 1);
rt73usb_register_write(rt2x00dev, TXRX_CSR1, reg);
/*
* CCK TXD BBP registers
*/
rt73usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID0, 13);
rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID0_VALID, 1);
rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID1, 12);
rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID1_VALID, 1);
rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID2, 11);
rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID2_VALID, 1);
rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID3, 10);
rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID3_VALID, 1);
rt73usb_register_write(rt2x00dev, TXRX_CSR2, reg);
/*
* OFDM TXD BBP registers
*/
rt73usb_register_read(rt2x00dev, TXRX_CSR3, &reg);
rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID0, 7);
rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID0_VALID, 1);
rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID1, 6);
rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID1_VALID, 1);
rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID2, 5);
rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID2_VALID, 1);
rt73usb_register_write(rt2x00dev, TXRX_CSR3, reg);
rt73usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_6MBS, 59);
rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_9MBS, 53);
rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_12MBS, 49);
rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_18MBS, 46);
rt73usb_register_write(rt2x00dev, TXRX_CSR7, reg);
rt73usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_24MBS, 44);
rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_36MBS, 42);
rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_48MBS, 42);
rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_54MBS, 42);
rt73usb_register_write(rt2x00dev, TXRX_CSR8, reg);
rt73usb_register_write(rt2x00dev, TXRX_CSR15, 0x0000000f);
rt73usb_register_read(rt2x00dev, MAC_CSR6, &reg);
rt2x00_set_field32(&reg, MAC_CSR6_MAX_FRAME_UNIT, 0xfff);
rt73usb_register_write(rt2x00dev, MAC_CSR6, reg);
rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00000718);
if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
return -EBUSY;
rt73usb_register_write(rt2x00dev, MAC_CSR13, 0x00007f00);
rt73usb_register_read(rt2x00dev, MAC_CSR14, &reg);
rt2x00_set_field32(&reg, MAC_CSR14_ON_PERIOD, 70);
rt2x00_set_field32(&reg, MAC_CSR14_OFF_PERIOD, 30);
rt73usb_register_write(rt2x00dev, MAC_CSR14, reg);
/*
* Invalidate all Shared Keys (SEC_CSR0),
* and clear the Shared key Cipher algorithms (SEC_CSR1 & SEC_CSR5)
*/
rt73usb_register_write(rt2x00dev, SEC_CSR0, 0x00000000);
rt73usb_register_write(rt2x00dev, SEC_CSR1, 0x00000000);
rt73usb_register_write(rt2x00dev, SEC_CSR5, 0x00000000);
reg = 0x000023b0;
if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
rt2x00_rf(&rt2x00dev->chip, RF2527))
rt2x00_set_field32(&reg, PHY_CSR1_RF_RPI, 1);
rt73usb_register_write(rt2x00dev, PHY_CSR1, reg);
rt73usb_register_write(rt2x00dev, PHY_CSR5, 0x00040a06);
rt73usb_register_write(rt2x00dev, PHY_CSR6, 0x00080606);
rt73usb_register_write(rt2x00dev, PHY_CSR7, 0x00000408);
rt73usb_register_read(rt2x00dev, AC_TXOP_CSR0, &reg);
rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC0_TX_OP, 0);
rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC1_TX_OP, 0);
rt73usb_register_write(rt2x00dev, AC_TXOP_CSR0, reg);
rt73usb_register_read(rt2x00dev, AC_TXOP_CSR1, &reg);
rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC2_TX_OP, 192);
rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC3_TX_OP, 48);
rt73usb_register_write(rt2x00dev, AC_TXOP_CSR1, reg);
rt73usb_register_read(rt2x00dev, MAC_CSR9, &reg);
rt2x00_set_field32(&reg, MAC_CSR9_CW_SELECT, 0);
rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
/*
* Clear all beacons
* For the Beacon base registers we only need to clear
* the first byte since that byte contains the VALID and OWNER
* bits which (when set to 0) will invalidate the entire beacon.
*/
rt73usb_register_write(rt2x00dev, HW_BEACON_BASE0, 0);
rt73usb_register_write(rt2x00dev, HW_BEACON_BASE1, 0);
rt73usb_register_write(rt2x00dev, HW_BEACON_BASE2, 0);
rt73usb_register_write(rt2x00dev, HW_BEACON_BASE3, 0);
/*
* We must clear the error counters.
* These registers are cleared on read,
* so we may pass a useless variable to store the value.
*/
rt73usb_register_read(rt2x00dev, STA_CSR0, &reg);
rt73usb_register_read(rt2x00dev, STA_CSR1, &reg);
rt73usb_register_read(rt2x00dev, STA_CSR2, &reg);
/*
* Reset MAC and BBP registers.
*/
rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 1);
rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 1);
rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 0);
rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 0);
rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
rt2x00_set_field32(&reg, MAC_CSR1_HOST_READY, 1);
rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
return 0;
}
static int rt73usb_init_bbp(struct rt2x00_dev *rt2x00dev)
{
unsigned int i;
u16 eeprom;
u8 reg_id;
u8 value;
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
rt73usb_bbp_read(rt2x00dev, 0, &value);
if ((value != 0xff) && (value != 0x00))
goto continue_csr_init;
NOTICE(rt2x00dev, "Waiting for BBP register.\n");
udelay(REGISTER_BUSY_DELAY);
}
ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
return -EACCES;
continue_csr_init:
rt73usb_bbp_write(rt2x00dev, 3, 0x80);
rt73usb_bbp_write(rt2x00dev, 15, 0x30);
rt73usb_bbp_write(rt2x00dev, 21, 0xc8);
rt73usb_bbp_write(rt2x00dev, 22, 0x38);
rt73usb_bbp_write(rt2x00dev, 23, 0x06);
rt73usb_bbp_write(rt2x00dev, 24, 0xfe);
rt73usb_bbp_write(rt2x00dev, 25, 0x0a);
rt73usb_bbp_write(rt2x00dev, 26, 0x0d);
rt73usb_bbp_write(rt2x00dev, 32, 0x0b);
rt73usb_bbp_write(rt2x00dev, 34, 0x12);
rt73usb_bbp_write(rt2x00dev, 37, 0x07);
rt73usb_bbp_write(rt2x00dev, 39, 0xf8);
rt73usb_bbp_write(rt2x00dev, 41, 0x60);
rt73usb_bbp_write(rt2x00dev, 53, 0x10);
rt73usb_bbp_write(rt2x00dev, 54, 0x18);
rt73usb_bbp_write(rt2x00dev, 60, 0x10);
rt73usb_bbp_write(rt2x00dev, 61, 0x04);
rt73usb_bbp_write(rt2x00dev, 62, 0x04);
rt73usb_bbp_write(rt2x00dev, 75, 0xfe);
rt73usb_bbp_write(rt2x00dev, 86, 0xfe);
rt73usb_bbp_write(rt2x00dev, 88, 0xfe);
rt73usb_bbp_write(rt2x00dev, 90, 0x0f);
rt73usb_bbp_write(rt2x00dev, 99, 0x00);
rt73usb_bbp_write(rt2x00dev, 102, 0x16);
rt73usb_bbp_write(rt2x00dev, 107, 0x04);
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);
rt73usb_bbp_write(rt2x00dev, reg_id, value);
}
}
return 0;
}
/*
* Device state switch handlers.
*/
static void rt73usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
u32 reg;
rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX,
state == STATE_RADIO_RX_OFF);
rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
}
static int rt73usb_enable_radio(struct rt2x00_dev *rt2x00dev)
{
/*
* Initialize all registers.
*/
if (rt73usb_init_registers(rt2x00dev) ||
rt73usb_init_bbp(rt2x00dev)) {
ERROR(rt2x00dev, "Register initialization failed.\n");
return -EIO;
}
return 0;
}
static void rt73usb_disable_radio(struct rt2x00_dev *rt2x00dev)
{
rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
/*
* Disable synchronisation.
*/
rt73usb_register_write(rt2x00dev, TXRX_CSR9, 0);
rt2x00usb_disable_radio(rt2x00dev);
}
static int rt73usb_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state)
{
u32 reg;
unsigned int i;
char put_to_sleep;
char current_state;
put_to_sleep = (state != STATE_AWAKE);
rt73usb_register_read(rt2x00dev, MAC_CSR12, &reg);
rt2x00_set_field32(&reg, MAC_CSR12_FORCE_WAKEUP, !put_to_sleep);
rt2x00_set_field32(&reg, MAC_CSR12_PUT_TO_SLEEP, put_to_sleep);
rt73usb_register_write(rt2x00dev, MAC_CSR12, reg);
/*
* Device is not guaranteed to be in the requested state yet.
* We must wait until the register indicates that the
* device has entered the correct state.
*/
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
rt73usb_register_read(rt2x00dev, MAC_CSR12, &reg);
current_state =
rt2x00_get_field32(reg, MAC_CSR12_BBP_CURRENT_STATE);
if (current_state == !put_to_sleep)
return 0;
msleep(10);
}
NOTICE(rt2x00dev, "Device failed to enter state %d, "
"current device state %d.\n", !put_to_sleep, current_state);
return -EBUSY;
}
static int rt73usb_set_device_state(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
int retval = 0;
switch (state) {
case STATE_RADIO_ON:
retval = rt73usb_enable_radio(rt2x00dev);
break;
case STATE_RADIO_OFF:
rt73usb_disable_radio(rt2x00dev);
break;
case STATE_RADIO_RX_ON:
case STATE_RADIO_RX_ON_LINK:
rt73usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
break;
case STATE_RADIO_RX_OFF:
case STATE_RADIO_RX_OFF_LINK:
rt73usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
break;
case STATE_DEEP_SLEEP:
case STATE_SLEEP:
case STATE_STANDBY:
case STATE_AWAKE:
retval = rt73usb_set_state(rt2x00dev, state);
break;
default:
retval = -ENOTSUPP;
break;
}
return retval;
}
/*
* TX descriptor initialization
*/
static void rt73usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
struct sk_buff *skb,
struct txentry_desc *txdesc,
struct ieee80211_tx_control *control)
{
struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
__le32 *txd = skbdesc->desc;
u32 word;
/*
* Start writing the descriptor words.
*/
rt2x00_desc_read(txd, 1, &word);
rt2x00_set_field32(&word, TXD_W1_HOST_Q_ID, txdesc->queue);
rt2x00_set_field32(&word, TXD_W1_AIFSN, txdesc->aifs);
rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
rt2x00_set_field32(&word, TXD_W1_HW_SEQUENCE, 1);
rt2x00_desc_write(txd, 1, word);
rt2x00_desc_read(txd, 2, &word);
rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, 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);
rt2x00_desc_write(txd, 2, word);
rt2x00_desc_read(txd, 5, &word);
rt2x00_set_field32(&word, TXD_W5_TX_POWER,
TXPOWER_TO_DEV(rt2x00dev->tx_power));
rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1);
rt2x00_desc_write(txd, 5, word);
rt2x00_desc_read(txd, 0, &word);
rt2x00_set_field32(&word, TXD_W0_BURST,
test_bit(ENTRY_TXD_BURST, &txdesc->flags));
rt2x00_set_field32(&word, TXD_W0_VALID, 1);
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,
test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
!!(control->flags &
IEEE80211_TXCTL_LONG_RETRY_LIMIT));
rt2x00_set_field32(&word, TXD_W0_TKIP_MIC, 0);
rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skbdesc->data_len);
rt2x00_set_field32(&word, TXD_W0_BURST2,
test_bit(ENTRY_TXD_BURST, &txdesc->flags));
rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE);
rt2x00_desc_write(txd, 0, word);
}
static int rt73usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
struct sk_buff *skb)
{
int length;
/*
* The length _must_ be a multiple of 4,
* but it must _not_ be a multiple of the USB packet size.
*/
length = roundup(skb->len, 4);
length += (4 * !(length % rt2x00dev->usb_maxpacket));
return length;
}
/*
* TX data initialization
*/
static void rt73usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
const unsigned int queue)
{
u32 reg;
if (queue != RT2X00_BCN_QUEUE_BEACON)
return;
/*
* For Wi-Fi faily generated beacons between participating stations.
* Set TBTT phase adaptive adjustment step to 8us (default 16us)
*/
rt73usb_register_write(rt2x00dev, TXRX_CSR10, 0x00001008);
rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
if (!rt2x00_get_field32(reg, TXRX_CSR9_BEACON_GEN)) {
rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 1);
rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
}
}
/*
* RX control handlers
*/
static int rt73usb_agc_to_rssi(struct rt2x00_dev *rt2x00dev, int rxd_w1)
{
u16 eeprom;
u8 offset;
u8 lna;
lna = rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_LNA);
switch (lna) {
case 3:
offset = 90;
break;
case 2:
offset = 74;
break;
case 1:
offset = 64;
break;
default:
return 0;
}
if (rt2x00dev->rx_status.band == IEEE80211_BAND_5GHZ) {
if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) {
if (lna == 3 || lna == 2)
offset += 10;
} else {
if (lna == 3)
offset += 6;
else if (lna == 2)
offset += 8;
}
rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &eeprom);
offset -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_A_1);
} else {
if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags))
offset += 14;
rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &eeprom);
offset -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_BG_1);
}
return rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_AGC) * 2 - offset;
}
static void rt73usb_fill_rxdone(struct queue_entry *entry,
struct rxdone_entry_desc *rxdesc)
{
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
__le32 *rxd = (__le32 *)entry->skb->data;
unsigned int offset = entry->queue->desc_size + 2;
u32 word0;
u32 word1;
/*
* Copy descriptor to the available headroom inside the skbuffer.
*/
skb_push(entry->skb, offset);
memcpy(entry->skb->data, rxd, entry->queue->desc_size);
rxd = (__le32 *)entry->skb->data;
/*
* The descriptor is now aligned to 4 bytes and thus it is
* now safe to read it on all architectures.
*/
rt2x00_desc_read(rxd, 0, &word0);
rt2x00_desc_read(rxd, 1, &word1);
rxdesc->flags = 0;
if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
/*
* 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->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
rxdesc->signal_plcp = rxdesc->ofdm;
rxdesc->rssi = rt73usb_agc_to_rssi(entry->queue->rt2x00dev, word1);
rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
rxdesc->my_bss = !!rt2x00_get_field32(word0, RXD_W0_MY_BSS);
/*
* Adjust the skb memory window to the frame boundaries.
*/
skb_pull(entry->skb, offset + entry->queue->desc_size);
skb_trim(entry->skb, rxdesc->size);
/*
* Set descriptor and data pointer.
*/
skbdesc->data = entry->skb->data;
skbdesc->data_len = rxdesc->size;
skbdesc->desc = rxd;
skbdesc->desc_len = entry->queue->desc_size;
}
/*
* Device probe functions.
*/
static int rt73usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
{
u16 word;
u8 *mac;
s8 value;
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)) {
DECLARE_MAC_BUF(macbuf);
random_ether_addr(mac);
EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
}
rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
if (word == 0xffff) {
rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
ANTENNA_B);
rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
ANTENNA_B);
rt2x00_set_field16(&word, EEPROM_ANTENNA_FRAME_TYPE, 0);
rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF5226);
rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
}
rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
if (word == 0xffff) {
rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA, 0);
rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
}
rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &word);
if (word == 0xffff) {
rt2x00_set_field16(&word, EEPROM_LED_POLARITY_RDY_G, 0);
rt2x00_set_field16(&word, EEPROM_LED_POLARITY_RDY_A, 0);
rt2x00_set_field16(&word, EEPROM_LED_POLARITY_ACT, 0);
rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_0, 0);
rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_1, 0);
rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_2, 0);
rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_3, 0);
rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_4, 0);
rt2x00_set_field16(&word, EEPROM_LED_LED_MODE,
LED_MODE_DEFAULT);
rt2x00_eeprom_write(rt2x00dev, EEPROM_LED, word);
EEPROM(rt2x00dev, "Led: 0x%04x\n", word);
}
rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &word);
if (word == 0xffff) {
rt2x00_set_field16(&word, EEPROM_FREQ_OFFSET, 0);
rt2x00_set_field16(&word, EEPROM_FREQ_SEQ, 0);
rt2x00_eeprom_write(rt2x00dev, EEPROM_FREQ, word);
EEPROM(rt2x00dev, "Freq: 0x%04x\n", word);
}
rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &word);
if (word == 0xffff) {
rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
EEPROM(rt2x00dev, "RSSI OFFSET BG: 0x%04x\n", word);
} else {
value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_1);
if (value < -10 || value > 10)
rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_2);
if (value < -10 || value > 10)
rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
}
rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &word);
if (word == 0xffff) {
rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
EEPROM(rt2x00dev, "RSSI OFFSET A: 0x%04x\n", word);
} else {
value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_1);
if (value < -10 || value > 10)
rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_2);
if (value < -10 || value > 10)
rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
}
return 0;
}
static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
u16 value;
u16 eeprom;
/*
* Read EEPROM word for configuration.
*/
rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
/*
* Identify RF chipset.
*/
value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
rt73usb_register_read(rt2x00dev, MAC_CSR0, &reg);
rt2x00_set_chip(rt2x00dev, RT2571, value, reg);
if (!rt2x00_check_rev(&rt2x00dev->chip, 0x25730)) {
ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
return -ENODEV;
}
if (!rt2x00_rf(&rt2x00dev->chip, RF5226) &&
!rt2x00_rf(&rt2x00dev->chip, RF2528) &&
!rt2x00_rf(&rt2x00dev->chip, RF5225) &&
!rt2x00_rf(&rt2x00dev->chip, RF2527)) {
ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
return -ENODEV;
}
/*
* Identify default antenna configuration.
*/
rt2x00dev->default_ant.tx =
rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
rt2x00dev->default_ant.rx =
rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
/*
* Read the Frame type.
*/
if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_FRAME_TYPE))
__set_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags);
/*
* Read frequency offset.
*/
rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom);
rt2x00dev->freq_offset = rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET);
/*
* Read external LNA informations.
*/
rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA)) {
__set_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
__set_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
}
/*
* Store led settings, for correct led behaviour.
*/
#ifdef CONFIG_RT73USB_LEDS
rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom);
switch (value) {
case LED_MODE_TXRX_ACTIVITY:
case LED_MODE_ASUS:
case LED_MODE_ALPHA:
case LED_MODE_DEFAULT:
rt2x00dev->led_flags =
LED_SUPPORT_RADIO | LED_SUPPORT_ASSOC;
break;
case LED_MODE_SIGNAL_STRENGTH:
rt2x00dev->led_flags =
LED_SUPPORT_RADIO | LED_SUPPORT_ASSOC |
LED_SUPPORT_QUALITY;
break;
}
rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_LED_MODE, value);
rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_0,
rt2x00_get_field16(eeprom,
EEPROM_LED_POLARITY_GPIO_0));
rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_1,
rt2x00_get_field16(eeprom,
EEPROM_LED_POLARITY_GPIO_1));
rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_2,
rt2x00_get_field16(eeprom,
EEPROM_LED_POLARITY_GPIO_2));
rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_3,
rt2x00_get_field16(eeprom,
EEPROM_LED_POLARITY_GPIO_3));
rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_4,
rt2x00_get_field16(eeprom,
EEPROM_LED_POLARITY_GPIO_4));
rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_ACT,
rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_ACT));
rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_BG,
rt2x00_get_field16(eeprom,
EEPROM_LED_POLARITY_RDY_G));
rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_A,
rt2x00_get_field16(eeprom,
EEPROM_LED_POLARITY_RDY_A));
#endif /* CONFIG_RT73USB_LEDS */
return 0;
}
/*
* RF value list for RF2528
* Supports: 2.4 GHz
*/
static const struct rf_channel rf_vals_bg_2528[] = {
{ 1, 0x00002c0c, 0x00000786, 0x00068255, 0x000fea0b },
{ 2, 0x00002c0c, 0x00000786, 0x00068255, 0x000fea1f },
{ 3, 0x00002c0c, 0x0000078a, 0x00068255, 0x000fea0b },
{ 4, 0x00002c0c, 0x0000078a, 0x00068255, 0x000fea1f },
{ 5, 0x00002c0c, 0x0000078e, 0x00068255, 0x000fea0b },
{ 6, 0x00002c0c, 0x0000078e, 0x00068255, 0x000fea1f },
{ 7, 0x00002c0c, 0x00000792, 0x00068255, 0x000fea0b },
{ 8, 0x00002c0c, 0x00000792, 0x00068255, 0x000fea1f },
{ 9, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea0b },
{ 10, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea1f },
{ 11, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea0b },
{ 12, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea1f },
{ 13, 0x00002c0c, 0x0000079e, 0x00068255, 0x000fea0b },
{ 14, 0x00002c0c, 0x000007a2, 0x00068255, 0x000fea13 },
};
/*
* RF value list for RF5226
* Supports: 2.4 GHz & 5.2 GHz
*/
static const struct rf_channel rf_vals_5226[] = {
{ 1, 0x00002c0c, 0x00000786, 0x00068255, 0x000fea0b },
{ 2, 0x00002c0c, 0x00000786, 0x00068255, 0x000fea1f },
{ 3, 0x00002c0c, 0x0000078a, 0x00068255, 0x000fea0b },
{ 4, 0x00002c0c, 0x0000078a, 0x00068255, 0x000fea1f },
{ 5, 0x00002c0c, 0x0000078e, 0x00068255, 0x000fea0b },
{ 6, 0x00002c0c, 0x0000078e, 0x00068255, 0x000fea1f },
{ 7, 0x00002c0c, 0x00000792, 0x00068255, 0x000fea0b },
{ 8, 0x00002c0c, 0x00000792, 0x00068255, 0x000fea1f },
{ 9, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea0b },
{ 10, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea1f },
{ 11, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea0b },
{ 12, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea1f },
{ 13, 0x00002c0c, 0x0000079e, 0x00068255, 0x000fea0b },
{ 14, 0x00002c0c, 0x000007a2, 0x00068255, 0x000fea13 },
/* 802.11 UNI / HyperLan 2 */
{ 36, 0x00002c0c, 0x0000099a, 0x00098255, 0x000fea23 },
{ 40, 0x00002c0c, 0x000009a2, 0x00098255, 0x000fea03 },
{ 44, 0x00002c0c, 0x000009a6, 0x00098255, 0x000fea0b },
{ 48, 0x00002c0c, 0x000009aa, 0x00098255, 0x000fea13 },
{ 52, 0x00002c0c, 0x000009ae, 0x00098255, 0x000fea1b },
{ 56, 0x00002c0c, 0x000009b2, 0x00098255, 0x000fea23 },
{ 60, 0x00002c0c, 0x000009ba, 0x00098255, 0x000fea03 },
{ 64, 0x00002c0c, 0x000009be, 0x00098255, 0x000fea0b },
/* 802.11 HyperLan 2 */
{ 100, 0x00002c0c, 0x00000a2a, 0x000b8255, 0x000fea03 },
{ 104, 0x00002c0c, 0x00000a2e, 0x000b8255, 0x000fea0b },
{ 108, 0x00002c0c, 0x00000a32, 0x000b8255, 0x000fea13 },
{ 112, 0x00002c0c, 0x00000a36, 0x000b8255, 0x000fea1b },
{ 116, 0x00002c0c, 0x00000a3a, 0x000b8255, 0x000fea23 },
{ 120, 0x00002c0c, 0x00000a82, 0x000b8255, 0x000fea03 },
{ 124, 0x00002c0c, 0x00000a86, 0x000b8255, 0x000fea0b },
{ 128, 0x00002c0c, 0x00000a8a, 0x000b8255, 0x000fea13 },
{ 132, 0x00002c0c, 0x00000a8e, 0x000b8255, 0x000fea1b },
{ 136, 0x00002c0c, 0x00000a92, 0x000b8255, 0x000fea23 },
/* 802.11 UNII */
{ 140, 0x00002c0c, 0x00000a9a, 0x000b8255, 0x000fea03 },
{ 149, 0x00002c0c, 0x00000aa2, 0x000b8255, 0x000fea1f },
{ 153, 0x00002c0c, 0x00000aa6, 0x000b8255, 0x000fea27 },
{ 157, 0x00002c0c, 0x00000aae, 0x000b8255, 0x000fea07 },
{ 161, 0x00002c0c, 0x00000ab2, 0x000b8255, 0x000fea0f },
{ 165, 0x00002c0c, 0x00000ab6, 0x000b8255, 0x000fea17 },
/* MMAC(Japan)J52 ch 34,38,42,46 */
{ 34, 0x00002c0c, 0x0008099a, 0x000da255, 0x000d3a0b },
{ 38, 0x00002c0c, 0x0008099e, 0x000da255, 0x000d3a13 },
{ 42, 0x00002c0c, 0x000809a2, 0x000da255, 0x000d3a1b },
{ 46, 0x00002c0c, 0x000809a6, 0x000da255, 0x000d3a23 },
};
/*
* RF value list for RF5225 & RF2527
* Supports: 2.4 GHz & 5.2 GHz
*/
static const struct rf_channel rf_vals_5225_2527[] = {
{ 1, 0x00002ccc, 0x00004786, 0x00068455, 0x000ffa0b },
{ 2, 0x00002ccc, 0x00004786, 0x00068455, 0x000ffa1f },
{ 3, 0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa0b },
{ 4, 0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa1f },
{ 5, 0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa0b },
{ 6, 0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa1f },
{ 7, 0x00002ccc, 0x00004792, 0x00068455, 0x000ffa0b },
{ 8, 0x00002ccc, 0x00004792, 0x00068455, 0x000ffa1f },
{ 9, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa0b },
{ 10, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa1f },
{ 11, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa0b },
{ 12, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa1f },
{ 13, 0x00002ccc, 0x0000479e, 0x00068455, 0x000ffa0b },
{ 14, 0x00002ccc, 0x000047a2, 0x00068455, 0x000ffa13 },
/* 802.11 UNI / HyperLan 2 */
{ 36, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa23 },
{ 40, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa03 },
{ 44, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa0b },
{ 48, 0x00002ccc, 0x000049aa, 0x0009be55, 0x000ffa13 },
{ 52, 0x00002ccc, 0x000049ae, 0x0009ae55, 0x000ffa1b },
{ 56, 0x00002ccc, 0x000049b2, 0x0009ae55, 0x000ffa23 },
{ 60, 0x00002ccc, 0x000049ba, 0x0009ae55, 0x000ffa03 },
{ 64, 0x00002ccc, 0x000049be, 0x0009ae55, 0x000ffa0b },
/* 802.11 HyperLan 2 */
{ 100, 0x00002ccc, 0x00004a2a, 0x000bae55, 0x000ffa03 },
{ 104, 0x00002ccc, 0x00004a2e, 0x000bae55, 0x000ffa0b },
{ 108, 0x00002ccc, 0x00004a32, 0x000bae55, 0x000ffa13 },
{ 112, 0x00002ccc, 0x00004a36, 0x000bae55, 0x000ffa1b },
{ 116, 0x00002ccc, 0x00004a3a, 0x000bbe55, 0x000ffa23 },
{ 120, 0x00002ccc, 0x00004a82, 0x000bbe55, 0x000ffa03 },
{ 124, 0x00002ccc, 0x00004a86, 0x000bbe55, 0x000ffa0b },
{ 128, 0x00002ccc, 0x00004a8a, 0x000bbe55, 0x000ffa13 },
{ 132, 0x00002ccc, 0x00004a8e, 0x000bbe55, 0x000ffa1b },
{ 136, 0x00002ccc, 0x00004a92, 0x000bbe55, 0x000ffa23 },
/* 802.11 UNII */
{ 140, 0x00002ccc, 0x00004a9a, 0x000bbe55, 0x000ffa03 },
{ 149, 0x00002ccc, 0x00004aa2, 0x000bbe55, 0x000ffa1f },
{ 153, 0x00002ccc, 0x00004aa6, 0x000bbe55, 0x000ffa27 },
{ 157, 0x00002ccc, 0x00004aae, 0x000bbe55, 0x000ffa07 },
{ 161, 0x00002ccc, 0x00004ab2, 0x000bbe55, 0x000ffa0f },
{ 165, 0x00002ccc, 0x00004ab6, 0x000bbe55, 0x000ffa17 },
/* MMAC(Japan)J52 ch 34,38,42,46 */
{ 34, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa0b },
{ 38, 0x00002ccc, 0x0000499e, 0x0009be55, 0x000ffa13 },
{ 42, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa1b },
{ 46, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa23 },
};
static void rt73usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
{
struct hw_mode_spec *spec = &rt2x00dev->spec;
u8 *txpower;
unsigned int i;
/*
* Initialize all hw fields.
*/
rt2x00dev->hw->flags =
IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
rt2x00dev->hw->max_signal = MAX_SIGNAL;
rt2x00dev->hw->max_rssi = MAX_RX_SSI;
rt2x00dev->hw->queues = 4;
SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
rt2x00_eeprom_addr(rt2x00dev,
EEPROM_MAC_ADDR_0));
/*
* Convert tx_power array in eeprom.
*/
txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_G_START);
for (i = 0; i < 14; i++)
txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
/*
* Initialize hw_mode information.
*/
spec->supported_bands = SUPPORT_BAND_2GHZ;
spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
spec->tx_power_a = NULL;
spec->tx_power_bg = txpower;
spec->tx_power_default = DEFAULT_TXPOWER;
if (rt2x00_rf(&rt2x00dev->chip, RF2528)) {
spec->num_channels = ARRAY_SIZE(rf_vals_bg_2528);
spec->channels = rf_vals_bg_2528;
} else if (rt2x00_rf(&rt2x00dev->chip, RF5226)) {
spec->supported_bands |= SUPPORT_BAND_5GHZ;
spec->num_channels = ARRAY_SIZE(rf_vals_5226);
spec->channels = rf_vals_5226;
} else if (rt2x00_rf(&rt2x00dev->chip, RF2527)) {
spec->num_channels = 14;
spec->channels = rf_vals_5225_2527;
} else if (rt2x00_rf(&rt2x00dev->chip, RF5225)) {
spec->supported_bands |= SUPPORT_BAND_5GHZ;
spec->num_channels = ARRAY_SIZE(rf_vals_5225_2527);
spec->channels = rf_vals_5225_2527;
}
if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
rt2x00_rf(&rt2x00dev->chip, RF5226)) {
txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
for (i = 0; i < 14; i++)
txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
spec->tx_power_a = txpower;
}
}
static int rt73usb_probe_hw(struct rt2x00_dev *rt2x00dev)
{
int retval;
/*
* Allocate eeprom data.
*/
retval = rt73usb_validate_eeprom(rt2x00dev);
if (retval)
return retval;
retval = rt73usb_init_eeprom(rt2x00dev);
if (retval)
return retval;
/*
* Initialize hw specifications.
*/
rt73usb_probe_hw_mode(rt2x00dev);
/*
* This device requires firmware.
*/
__set_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags);
/*
* Set the rssi offset.
*/
rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
return 0;
}
/*
* IEEE80211 stack callback functions.
*/
static void rt73usb_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags,
int mc_count,
struct dev_addr_list *mc_list)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
u32 reg;
/*
* Mask off any flags we are going to ignore from
* the total_flags field.
*/
*total_flags &=
FIF_ALLMULTI |
FIF_FCSFAIL |
FIF_PLCPFAIL |
FIF_CONTROL |
FIF_OTHER_BSS |
FIF_PROMISC_IN_BSS;
/*
* Apply some rules to the filters:
* - Some filters imply different filters to be set.
* - Some things we can't filter out at all.
* - Multicast filter seems to kill broadcast traffic so never use it.
*/
*total_flags |= FIF_ALLMULTI;
if (*total_flags & FIF_OTHER_BSS ||
*total_flags & FIF_PROMISC_IN_BSS)
*total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS;
/*
* Check if there is any work left for us.
*/
if (rt2x00dev->packet_filter == *total_flags)
return;
rt2x00dev->packet_filter = *total_flags;
/*
* When in atomic context, reschedule and let rt2x00lib
* call this function again.
*/
if (in_atomic()) {
queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work);
return;
}
/*
* 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.
*/
rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC,
!(*total_flags & FIF_FCSFAIL));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL,
!(*total_flags & FIF_PLCPFAIL));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL,
!(*total_flags & FIF_CONTROL));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME,
!(*total_flags & FIF_PROMISC_IN_BSS));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS,
!(*total_flags & FIF_PROMISC_IN_BSS));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_MULTICAST,
!(*total_flags & FIF_ALLMULTI));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_BROADCAST, 0);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS,
!(*total_flags & FIF_CONTROL));
rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
}
static int rt73usb_set_retry_limit(struct ieee80211_hw *hw,
u32 short_retry, u32 long_retry)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
u32 reg;
rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
rt2x00_set_field32(&reg, TXRX_CSR4_LONG_RETRY_LIMIT, long_retry);
rt2x00_set_field32(&reg, TXRX_CSR4_SHORT_RETRY_LIMIT, short_retry);
rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
return 0;
}
#if 0
/*
* Mac80211 demands get_tsf must be atomic.
* This is not possible for rt73usb since all register access
* functions require sleeping. Untill mac80211 no longer needs
* get_tsf to be atomic, this function should be disabled.
*/
static u64 rt73usb_get_tsf(struct ieee80211_hw *hw)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
u64 tsf;
u32 reg;
rt73usb_register_read(rt2x00dev, TXRX_CSR13, &reg);
tsf = (u64) rt2x00_get_field32(reg, TXRX_CSR13_HIGH_TSFTIMER) << 32;
rt73usb_register_read(rt2x00dev, TXRX_CSR12, &reg);
tsf |= rt2x00_get_field32(reg, TXRX_CSR12_LOW_TSFTIMER);
return tsf;
}
#else
#define rt73usb_get_tsf NULL
#endif
static int rt73usb_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
struct ieee80211_tx_control *control)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
struct rt2x00_intf *intf = vif_to_intf(control->vif);
struct skb_frame_desc *skbdesc;
unsigned int beacon_base;
unsigned int timeout;
u32 reg;
if (unlikely(!intf->beacon))
return -ENOBUFS;
/*
* Add the descriptor in front of the skb.
*/
skb_push(skb, intf->beacon->queue->desc_size);
memset(skb->data, 0, intf->beacon->queue->desc_size);
/*
* Fill in skb descriptor
*/
skbdesc = get_skb_frame_desc(skb);
memset(skbdesc, 0, sizeof(*skbdesc));
skbdesc->flags |= FRAME_DESC_DRIVER_GENERATED;
skbdesc->data = skb->data + intf->beacon->queue->desc_size;
skbdesc->data_len = skb->len - intf->beacon->queue->desc_size;
skbdesc->desc = skb->data;
skbdesc->desc_len = intf->beacon->queue->desc_size;
skbdesc->entry = intf->beacon;
/*
* Disable beaconing while we are reloading the beacon data,
* otherwise we might be sending out invalid data.
*/
rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 0);
rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 0);
rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
/*
* mac80211 doesn't provide the control->queue variable
* for beacons. Set our own queue identification so
* it can be used during descriptor initialization.
*/
control->queue = RT2X00_BCN_QUEUE_BEACON;
rt2x00lib_write_tx_desc(rt2x00dev, skb, control);
/*
* Write entire beacon with descriptor to register,
* and kick the beacon generator.
*/
beacon_base = HW_BEACON_OFFSET(intf->beacon->entry_idx);
timeout = REGISTER_TIMEOUT * (skb->len / sizeof(u32));
rt2x00usb_vendor_request(rt2x00dev, USB_MULTI_WRITE,
USB_VENDOR_REQUEST_OUT, beacon_base, 0,
skb->data, skb->len, timeout);
rt73usb_kick_tx_queue(rt2x00dev, control->queue);
return 0;
}
static const struct ieee80211_ops rt73usb_mac80211_ops = {
.tx = rt2x00mac_tx,
.start = rt2x00mac_start,
.stop = rt2x00mac_stop,
.add_interface = rt2x00mac_add_interface,
.remove_interface = rt2x00mac_remove_interface,
.config = rt2x00mac_config,
.config_interface = rt2x00mac_config_interface,
.configure_filter = rt73usb_configure_filter,
.get_stats = rt2x00mac_get_stats,
.set_retry_limit = rt73usb_set_retry_limit,
.bss_info_changed = rt2x00mac_bss_info_changed,
.conf_tx = rt2x00mac_conf_tx,
.get_tx_stats = rt2x00mac_get_tx_stats,
.get_tsf = rt73usb_get_tsf,
.beacon_update = rt73usb_beacon_update,
};
static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
.probe_hw = rt73usb_probe_hw,
.get_firmware_name = rt73usb_get_firmware_name,
.get_firmware_crc = rt73usb_get_firmware_crc,
.load_firmware = rt73usb_load_firmware,
.initialize = rt2x00usb_initialize,
.uninitialize = rt2x00usb_uninitialize,
.init_rxentry = rt2x00usb_init_rxentry,
.init_txentry = rt2x00usb_init_txentry,
.set_device_state = rt73usb_set_device_state,
.link_stats = rt73usb_link_stats,
.reset_tuner = rt73usb_reset_tuner,
.link_tuner = rt73usb_link_tuner,
.led_brightness = rt73usb_led_brightness,
.write_tx_desc = rt73usb_write_tx_desc,
.write_tx_data = rt2x00usb_write_tx_data,
.get_tx_data_len = rt73usb_get_tx_data_len,
.kick_tx_queue = rt73usb_kick_tx_queue,
.fill_rxdone = rt73usb_fill_rxdone,
.config_intf = rt73usb_config_intf,
.config_erp = rt73usb_config_erp,
.config = rt73usb_config,
};
static const struct data_queue_desc rt73usb_queue_rx = {
.entry_num = RX_ENTRIES,
.data_size = DATA_FRAME_SIZE,
.desc_size = RXD_DESC_SIZE,
.priv_size = sizeof(struct queue_entry_priv_usb_rx),
};
static const struct data_queue_desc rt73usb_queue_tx = {
.entry_num = TX_ENTRIES,
.data_size = DATA_FRAME_SIZE,
.desc_size = TXD_DESC_SIZE,
.priv_size = sizeof(struct queue_entry_priv_usb_tx),
};
static const struct data_queue_desc rt73usb_queue_bcn = {
.entry_num = 4 * BEACON_ENTRIES,
.data_size = MGMT_FRAME_SIZE,
.desc_size = TXINFO_SIZE,
.priv_size = sizeof(struct queue_entry_priv_usb_tx),
};
static const struct rt2x00_ops rt73usb_ops = {
.name = KBUILD_MODNAME,
.max_sta_intf = 1,
.max_ap_intf = 4,
.eeprom_size = EEPROM_SIZE,
.rf_size = RF_SIZE,
.rx = &rt73usb_queue_rx,
.tx = &rt73usb_queue_tx,
.bcn = &rt73usb_queue_bcn,
.lib = &rt73usb_rt2x00_ops,
.hw = &rt73usb_mac80211_ops,
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
.debugfs = &rt73usb_rt2x00debug,
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
};
/*
* rt73usb module information.
*/
static struct usb_device_id rt73usb_device_table[] = {
/* AboCom */
{ USB_DEVICE(0x07b8, 0xb21d), USB_DEVICE_DATA(&rt73usb_ops) },
/* Askey */
{ USB_DEVICE(0x1690, 0x0722), USB_DEVICE_DATA(&rt73usb_ops) },
/* ASUS */
{ USB_DEVICE(0x0b05, 0x1723), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x0b05, 0x1724), USB_DEVICE_DATA(&rt73usb_ops) },
/* Belkin */
{ USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x050d, 0x905b), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x050d, 0x905c), USB_DEVICE_DATA(&rt73usb_ops) },
/* Billionton */
{ USB_DEVICE(0x1631, 0xc019), USB_DEVICE_DATA(&rt73usb_ops) },
/* Buffalo */
{ USB_DEVICE(0x0411, 0x00f4), USB_DEVICE_DATA(&rt73usb_ops) },
/* CNet */
{ USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x1371, 0x9032), USB_DEVICE_DATA(&rt73usb_ops) },
/* Conceptronic */
{ USB_DEVICE(0x14b2, 0x3c22), USB_DEVICE_DATA(&rt73usb_ops) },
/* D-Link */
{ USB_DEVICE(0x07d1, 0x3c03), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x07d1, 0x3c04), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x07d1, 0x3c07), USB_DEVICE_DATA(&rt73usb_ops) },
/* Gemtek */
{ USB_DEVICE(0x15a9, 0x0004), USB_DEVICE_DATA(&rt73usb_ops) },
/* Gigabyte */
{ USB_DEVICE(0x1044, 0x8008), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x1044, 0x800a), USB_DEVICE_DATA(&rt73usb_ops) },
/* Huawei-3Com */
{ USB_DEVICE(0x1472, 0x0009), USB_DEVICE_DATA(&rt73usb_ops) },
/* Hercules */
{ USB_DEVICE(0x06f8, 0xe010), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x06f8, 0xe020), USB_DEVICE_DATA(&rt73usb_ops) },
/* Linksys */
{ USB_DEVICE(0x13b1, 0x0020), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x13b1, 0x0023), USB_DEVICE_DATA(&rt73usb_ops) },
/* MSI */
{ USB_DEVICE(0x0db0, 0x6877), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x0db0, 0x6874), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x0db0, 0xa861), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x0db0, 0xa874), USB_DEVICE_DATA(&rt73usb_ops) },
/* Ralink */
{ USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x148f, 0x2671), USB_DEVICE_DATA(&rt73usb_ops) },
/* Qcom */
{ USB_DEVICE(0x18e8, 0x6196), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x18e8, 0x6229), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x18e8, 0x6238), USB_DEVICE_DATA(&rt73usb_ops) },
/* Senao */
{ USB_DEVICE(0x1740, 0x7100), USB_DEVICE_DATA(&rt73usb_ops) },
/* Sitecom */
{ USB_DEVICE(0x0df6, 0x9712), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x0df6, 0x90ac), USB_DEVICE_DATA(&rt73usb_ops) },
/* Surecom */
{ USB_DEVICE(0x0769, 0x31f3), USB_DEVICE_DATA(&rt73usb_ops) },
/* Planex */
{ USB_DEVICE(0x2019, 0xab01), USB_DEVICE_DATA(&rt73usb_ops) },
{ USB_DEVICE(0x2019, 0xab50), USB_DEVICE_DATA(&rt73usb_ops) },
{ 0, }
};
MODULE_AUTHOR(DRV_PROJECT);
MODULE_VERSION(DRV_VERSION);
MODULE_DESCRIPTION("Ralink RT73 USB Wireless LAN driver.");
MODULE_SUPPORTED_DEVICE("Ralink RT2571W & RT2671 USB chipset based cards");
MODULE_DEVICE_TABLE(usb, rt73usb_device_table);
MODULE_FIRMWARE(FIRMWARE_RT2571);
MODULE_LICENSE("GPL");
static struct usb_driver rt73usb_driver = {
.name = KBUILD_MODNAME,
.id_table = rt73usb_device_table,
.probe = rt2x00usb_probe,
.disconnect = rt2x00usb_disconnect,
.suspend = rt2x00usb_suspend,
.resume = rt2x00usb_resume,
};
static int __init rt73usb_init(void)
{
return usb_register(&rt73usb_driver);
}
static void __exit rt73usb_exit(void)
{
usb_deregister(&rt73usb_driver);
}
module_init(rt73usb_init);
module_exit(rt73usb_exit);