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linux-zen-server/drivers/net/wireless/ralink/rt2x00/rt73usb.c

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Initial commit
2023-08-30 17:53:23 +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: 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/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include "rt2x00.h"
#include "rt2x00usb.h"
#include "rt73usb.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
* rt2x00usb_register_read and rt2x00usb_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 csr_mutex
*/
#define WAIT_FOR_BBP(__dev, __reg) \
rt2x00usb_regbusy_read((__dev), PHY_CSR3, PHY_CSR3_BUSY, (__reg))
#define WAIT_FOR_RF(__dev, __reg) \
rt2x00usb_regbusy_read((__dev), PHY_CSR4, PHY_CSR4_BUSY, (__reg))
static void rt73usb_bbp_write(struct rt2x00_dev *rt2x00dev,
const unsigned int word, const u8 value)
{
u32 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_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);
rt2x00usb_register_write_lock(rt2x00dev, PHY_CSR3, reg);
}
mutex_unlock(&rt2x00dev->csr_mutex);
}
static u8 rt73usb_bbp_read(struct rt2x00_dev *rt2x00dev,
const unsigned int word)
{
u32 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_field32(&reg, PHY_CSR3_REGNUM, word);
rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 1);
rt2x00usb_register_write_lock(rt2x00dev, PHY_CSR3, reg);
WAIT_FOR_BBP(rt2x00dev, &reg);
}
value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
mutex_unlock(&rt2x00dev->csr_mutex);
return value;
}
static void rt73usb_rf_write(struct rt2x00_dev *rt2x00dev,
const unsigned int word, const u32 value)
{
u32 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_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, RF5225) ||
rt2x00_rf(rt2x00dev, RF2527)));
rt2x00_set_field32(&reg, PHY_CSR4_IF_SELECT, 0);
rt2x00_set_field32(&reg, PHY_CSR4_BUSY, 1);
rt2x00usb_register_write_lock(rt2x00dev, PHY_CSR4, reg);
rt2x00_rf_write(rt2x00dev, word, value);
}
mutex_unlock(&rt2x00dev->csr_mutex);
}
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
static const struct rt2x00debug rt73usb_rt2x00debug = {
.owner = THIS_MODULE,
.csr = {
.read = rt2x00usb_register_read,
.write = rt2x00usb_register_write,
.flags = RT2X00DEBUGFS_OFFSET,
.word_base = CSR_REG_BASE,
.word_size = sizeof(u32),
.word_count = CSR_REG_SIZE / sizeof(u32),
},
.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 = rt73usb_bbp_read,
.write = rt73usb_bbp_write,
.word_base = BBP_BASE,
.word_size = sizeof(u8),
.word_count = BBP_SIZE / sizeof(u8),
},
.rf = {
.read = rt2x00_rf_read,
.write = rt73usb_rf_write,
.word_base = RF_BASE,
.word_size = sizeof(u32),
.word_count = RF_SIZE / sizeof(u32),
},
};
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
static int rt73usb_rfkill_poll(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR13);
return rt2x00_get_field32(reg, MAC_CSR13_VAL7);
}
#ifdef CONFIG_RT2X00_LIB_LEDS
static void rt73usb_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;
unsigned int a_mode =
(enabled && led->rt2x00dev->curr_band == NL80211_BAND_5GHZ);
unsigned int bg_mode =
(enabled && led->rt2x00dev->curr_band == NL80211_BAND_2GHZ);
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);
}
}
static int rt73usb_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);
u32 reg;
reg = rt2x00usb_register_read(led->rt2x00dev, MAC_CSR14);
rt2x00_set_field32(&reg, MAC_CSR14_ON_PERIOD, *delay_on);
rt2x00_set_field32(&reg, MAC_CSR14_OFF_PERIOD, *delay_off);
rt2x00usb_register_write(led->rt2x00dev, MAC_CSR14, reg);
return 0;
}
static void rt73usb_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 = rt73usb_brightness_set;
led->led_dev.blink_set = rt73usb_blink_set;
led->flags = LED_INITIALIZED;
}
#endif /* CONFIG_RT2X00_LIB_LEDS */
/*
* Configuration handlers.
*/
static int rt73usb_config_shared_key(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_crypto *crypto,
struct ieee80211_key_conf *key)
{
struct hw_key_entry key_entry;
struct rt2x00_field32 field;
u32 mask;
u32 reg;
if (crypto->cmd == SET_KEY) {
/*
* rt2x00lib can't determine the correct free
* key_idx for shared keys. We have 1 register
* with key valid bits. The goal is simple, read
* the register, if that is full we have no slots
* left.
* Note that each BSS is allowed to have up to 4
* shared keys, so put a mask over the allowed
* entries.
*/
mask = (0xf << crypto->bssidx);
reg = rt2x00usb_register_read(rt2x00dev, SEC_CSR0);
reg &= mask;
if (reg && reg == mask)
return -ENOSPC;
key->hw_key_idx += reg ? ffz(reg) : 0;
/*
* Upload key to hardware
*/
memcpy(key_entry.key, crypto->key,
sizeof(key_entry.key));
memcpy(key_entry.tx_mic, crypto->tx_mic,
sizeof(key_entry.tx_mic));
memcpy(key_entry.rx_mic, crypto->rx_mic,
sizeof(key_entry.rx_mic));
reg = SHARED_KEY_ENTRY(key->hw_key_idx);
rt2x00usb_register_multiwrite(rt2x00dev, reg,
&key_entry, sizeof(key_entry));
/*
* The cipher types are stored over 2 registers.
* bssidx 0 and 1 keys are stored in SEC_CSR1 and
* bssidx 1 and 2 keys are stored in SEC_CSR5.
* Using the correct defines correctly will cause overhead,
* so just calculate the correct offset.
*/
if (key->hw_key_idx < 8) {
field.bit_offset = (3 * key->hw_key_idx);
field.bit_mask = 0x7 << field.bit_offset;
reg = rt2x00usb_register_read(rt2x00dev, SEC_CSR1);
rt2x00_set_field32(&reg, field, crypto->cipher);
rt2x00usb_register_write(rt2x00dev, SEC_CSR1, reg);
} else {
field.bit_offset = (3 * (key->hw_key_idx - 8));
field.bit_mask = 0x7 << field.bit_offset;
reg = rt2x00usb_register_read(rt2x00dev, SEC_CSR5);
rt2x00_set_field32(&reg, field, crypto->cipher);
rt2x00usb_register_write(rt2x00dev, SEC_CSR5, reg);
}
/*
* The driver does not support the IV/EIV generation
* in hardware. However it doesn't support the IV/EIV
* inside the ieee80211 frame either, but requires it
* to be provided separately for the descriptor.
* rt2x00lib will cut the IV/EIV data out of all frames
* given to us by mac80211, but we must tell mac80211
* to generate the IV/EIV data.
*/
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
}
/*
* SEC_CSR0 contains only single-bit fields to indicate
* a particular key is valid. Because using the FIELD32()
* defines directly will cause a lot of overhead we use
* a calculation to determine the correct bit directly.
*/
mask = 1 << key->hw_key_idx;
reg = rt2x00usb_register_read(rt2x00dev, SEC_CSR0);
if (crypto->cmd == SET_KEY)
reg |= mask;
else if (crypto->cmd == DISABLE_KEY)
reg &= ~mask;
rt2x00usb_register_write(rt2x00dev, SEC_CSR0, reg);
return 0;
}
static int rt73usb_config_pairwise_key(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_crypto *crypto,
struct ieee80211_key_conf *key)
{
struct hw_pairwise_ta_entry addr_entry;
struct hw_key_entry key_entry;
u32 mask;
u32 reg;
if (crypto->cmd == SET_KEY) {
/*
* rt2x00lib can't determine the correct free
* key_idx for pairwise keys. We have 2 registers
* with key valid bits. The goal is simple, read
* the first register, if that is full move to
* the next register.
* When both registers are full, we drop the key,
* otherwise we use the first invalid entry.
*/
reg = rt2x00usb_register_read(rt2x00dev, SEC_CSR2);
if (reg && reg == ~0) {
key->hw_key_idx = 32;
reg = rt2x00usb_register_read(rt2x00dev, SEC_CSR3);
if (reg && reg == ~0)
return -ENOSPC;
}
key->hw_key_idx += reg ? ffz(reg) : 0;
/*
* Upload key to hardware
*/
memcpy(key_entry.key, crypto->key,
sizeof(key_entry.key));
memcpy(key_entry.tx_mic, crypto->tx_mic,
sizeof(key_entry.tx_mic));
memcpy(key_entry.rx_mic, crypto->rx_mic,
sizeof(key_entry.rx_mic));
reg = PAIRWISE_KEY_ENTRY(key->hw_key_idx);
rt2x00usb_register_multiwrite(rt2x00dev, reg,
&key_entry, sizeof(key_entry));
/*
* Send the address and cipher type to the hardware register.
*/
memset(&addr_entry, 0, sizeof(addr_entry));
memcpy(&addr_entry, crypto->address, ETH_ALEN);
addr_entry.cipher = crypto->cipher;
reg = PAIRWISE_TA_ENTRY(key->hw_key_idx);
rt2x00usb_register_multiwrite(rt2x00dev, reg,
&addr_entry, sizeof(addr_entry));
/*
* Enable pairwise lookup table for given BSS idx,
* without this received frames will not be decrypted
* by the hardware.
*/
reg = rt2x00usb_register_read(rt2x00dev, SEC_CSR4);
reg |= (1 << crypto->bssidx);
rt2x00usb_register_write(rt2x00dev, SEC_CSR4, reg);
/*
* The driver does not support the IV/EIV generation
* in hardware. However it doesn't support the IV/EIV
* inside the ieee80211 frame either, but requires it
* to be provided separately for the descriptor.
* rt2x00lib will cut the IV/EIV data out of all frames
* given to us by mac80211, but we must tell mac80211
* to generate the IV/EIV data.
*/
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
}
/*
* SEC_CSR2 and SEC_CSR3 contain only single-bit fields to indicate
* a particular key is valid. Because using the FIELD32()
* defines directly will cause a lot of overhead we use
* a calculation to determine the correct bit directly.
*/
if (key->hw_key_idx < 32) {
mask = 1 << key->hw_key_idx;
reg = rt2x00usb_register_read(rt2x00dev, SEC_CSR2);
if (crypto->cmd == SET_KEY)
reg |= mask;
else if (crypto->cmd == DISABLE_KEY)
reg &= ~mask;
rt2x00usb_register_write(rt2x00dev, SEC_CSR2, reg);
} else {
mask = 1 << (key->hw_key_idx - 32);
reg = rt2x00usb_register_read(rt2x00dev, SEC_CSR3);
if (crypto->cmd == SET_KEY)
reg |= mask;
else if (crypto->cmd == DISABLE_KEY)
reg &= ~mask;
rt2x00usb_register_write(rt2x00dev, SEC_CSR3, reg);
}
return 0;
}
static void rt73usb_config_filter(struct rt2x00_dev *rt2x00dev,
const unsigned int filter_flags)
{
u32 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 = rt2x00usb_register_read(rt2x00dev, TXRX_CSR0);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC,
!(filter_flags & FIF_FCSFAIL));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL,
!(filter_flags & FIF_PLCPFAIL));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL,
!(filter_flags & (FIF_CONTROL | FIF_PSPOLL)));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags) &&
!rt2x00dev->intf_ap_count);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_MULTICAST,
!(filter_flags & FIF_ALLMULTI));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_BROADCAST, 0);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS,
!(filter_flags & FIF_CONTROL));
rt2x00usb_register_write(rt2x00dev, TXRX_CSR0, reg);
}
static void rt73usb_config_intf(struct rt2x00_dev *rt2x00dev,
struct rt2x00_intf *intf,
struct rt2x00intf_conf *conf,
const unsigned int flags)
{
u32 reg;
if (flags & CONFIG_UPDATE_TYPE) {
/*
* Enable synchronisation.
*/
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR9);
rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, conf->sync);
rt2x00usb_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);
rt2x00usb_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);
rt2x00usb_register_multiwrite(rt2x00dev, MAC_CSR4,
conf->bssid, sizeof(conf->bssid));
}
}
static void rt73usb_config_erp(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_erp *erp,
u32 changed)
{
u32 reg;
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR0);
rt2x00_set_field32(&reg, TXRX_CSR0_RX_ACK_TIMEOUT, 0x32);
rt2x00_set_field32(&reg, TXRX_CSR0_TSF_OFFSET, IEEE80211_HEADER);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR0, reg);
if (changed & BSS_CHANGED_ERP_PREAMBLE) {
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR4);
rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_ENABLE, 1);
rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE,
!!erp->short_preamble);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR4, reg);
}
if (changed & BSS_CHANGED_BASIC_RATES)
rt2x00usb_register_write(rt2x00dev, TXRX_CSR5,
erp->basic_rates);
if (changed & BSS_CHANGED_BEACON_INT) {
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR9);
rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_INTERVAL,
erp->beacon_int * 16);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
}
if (changed & BSS_CHANGED_ERP_SLOT) {
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR9);
rt2x00_set_field32(&reg, MAC_CSR9_SLOT_TIME, erp->slot_time);
rt2x00usb_register_write(rt2x00dev, MAC_CSR9, reg);
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR8);
rt2x00_set_field32(&reg, MAC_CSR8_SIFS, erp->sifs);
rt2x00_set_field32(&reg, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
rt2x00_set_field32(&reg, MAC_CSR8_EIFS, erp->eifs);
rt2x00usb_register_write(rt2x00dev, MAC_CSR8, reg);
}
}
static void rt73usb_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
struct antenna_setup *ant)
{
u8 r3;
u8 r4;
u8 r77;
u8 temp;
r3 = rt73usb_bbp_read(rt2x00dev, 3);
r4 = rt73usb_bbp_read(rt2x00dev, 4);
r77 = rt73usb_bbp_read(rt2x00dev, 77);
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 = !rt2x00_has_cap_frame_type(rt2x00dev) &&
(rt2x00dev->curr_band != NL80211_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 == NL80211_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 == NL80211_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;
r3 = rt73usb_bbp_read(rt2x00dev, 3);
r4 = rt73usb_bbp_read(rt2x00dev, 4);
r77 = rt73usb_bbp_read(rt2x00dev, 77);
rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
!rt2x00_has_cap_frame_type(rt2x00dev));
/*
* 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_ant(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 == NL80211_BAND_5GHZ) {
sel = antenna_sel_a;
lna = rt2x00_has_cap_external_lna_a(rt2x00dev);
} else {
sel = antenna_sel_bg;
lna = rt2x00_has_cap_external_lna_bg(rt2x00dev);
}
for (i = 0; i < ARRAY_SIZE(antenna_sel_a); i++)
rt73usb_bbp_write(rt2x00dev, sel[i].word, sel[i].value[lna]);
reg = rt2x00usb_register_read(rt2x00dev, PHY_CSR0);
rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG,
(rt2x00dev->curr_band == NL80211_BAND_2GHZ));
rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A,
(rt2x00dev->curr_band == NL80211_BAND_5GHZ));
rt2x00usb_register_write(rt2x00dev, PHY_CSR0, reg);
if (rt2x00_rf(rt2x00dev, RF5226) || rt2x00_rf(rt2x00dev, RF5225))
rt73usb_config_antenna_5x(rt2x00dev, ant);
else if (rt2x00_rf(rt2x00dev, RF2528) || rt2x00_rf(rt2x00dev, RF2527))
rt73usb_config_antenna_2x(rt2x00dev, ant);
}
static void rt73usb_config_lna_gain(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_conf *libconf)
{
u16 eeprom;
short lna_gain = 0;
if (libconf->conf->chandef.chan->band == NL80211_BAND_2GHZ) {
if (rt2x00_has_cap_external_lna_bg(rt2x00dev))
lna_gain += 14;
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG);
lna_gain -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_BG_1);
} else {
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A);
lna_gain -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_A_1);
}
rt2x00dev->lna_gain = lna_gain;
}
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, RF5225) || rt2x00_rf(rt2x00dev, RF2527));
r3 = rt73usb_bbp_read(rt2x00dev, 3);
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;
rf.rf1 = rt2x00_rf_read(rt2x00dev, 1);
rf.rf2 = rt2x00_rf_read(rt2x00dev, 2);
rf.rf3 = rt2x00_rf_read(rt2x00dev, 3);
rf.rf4 = rt2x00_rf_read(rt2x00dev, 4);
rt73usb_config_channel(rt2x00dev, &rf, txpower);
}
static void rt73usb_config_retry_limit(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_conf *libconf)
{
u32 reg;
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR4);
rt2x00_set_field32(&reg, TXRX_CSR4_OFDM_TX_RATE_DOWN, 1);
rt2x00_set_field32(&reg, TXRX_CSR4_OFDM_TX_RATE_STEP, 0);
rt2x00_set_field32(&reg, TXRX_CSR4_OFDM_TX_FALLBACK_CCK, 0);
rt2x00_set_field32(&reg, TXRX_CSR4_LONG_RETRY_LIMIT,
libconf->conf->long_frame_max_tx_count);
rt2x00_set_field32(&reg, TXRX_CSR4_SHORT_RETRY_LIMIT,
libconf->conf->short_frame_max_tx_count);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR4, reg);
}
static void rt73usb_config_ps(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_conf *libconf)
{
enum dev_state state =
(libconf->conf->flags & IEEE80211_CONF_PS) ?
STATE_SLEEP : STATE_AWAKE;
u32 reg;
if (state == STATE_SLEEP) {
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR11);
rt2x00_set_field32(&reg, MAC_CSR11_DELAY_AFTER_TBCN,
rt2x00dev->beacon_int - 10);
rt2x00_set_field32(&reg, MAC_CSR11_TBCN_BEFORE_WAKEUP,
libconf->conf->listen_interval - 1);
rt2x00_set_field32(&reg, MAC_CSR11_WAKEUP_LATENCY, 5);
/* We must first disable autowake before it can be enabled */
rt2x00_set_field32(&reg, MAC_CSR11_AUTOWAKE, 0);
rt2x00usb_register_write(rt2x00dev, MAC_CSR11, reg);
rt2x00_set_field32(&reg, MAC_CSR11_AUTOWAKE, 1);
rt2x00usb_register_write(rt2x00dev, MAC_CSR11, reg);
rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0,
USB_MODE_SLEEP, REGISTER_TIMEOUT);
} else {
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR11);
rt2x00_set_field32(&reg, MAC_CSR11_DELAY_AFTER_TBCN, 0);
rt2x00_set_field32(&reg, MAC_CSR11_TBCN_BEFORE_WAKEUP, 0);
rt2x00_set_field32(&reg, MAC_CSR11_AUTOWAKE, 0);
rt2x00_set_field32(&reg, MAC_CSR11_WAKEUP_LATENCY, 0);
rt2x00usb_register_write(rt2x00dev, MAC_CSR11, reg);
rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0,
USB_MODE_WAKEUP, REGISTER_TIMEOUT);
}
}
static void rt73usb_config(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_conf *libconf,
const unsigned int flags)
{
/* Always recalculate LNA gain before changing configuration */
rt73usb_config_lna_gain(rt2x00dev, libconf);
if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
rt73usb_config_channel(rt2x00dev, &libconf->rf,
libconf->conf->power_level);
if ((flags & IEEE80211_CONF_CHANGE_POWER) &&
!(flags & IEEE80211_CONF_CHANGE_CHANNEL))
rt73usb_config_txpower(rt2x00dev, libconf->conf->power_level);
if (flags & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
rt73usb_config_retry_limit(rt2x00dev, libconf);
if (flags & IEEE80211_CONF_CHANGE_PS)
rt73usb_config_ps(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.
*/
reg = rt2x00usb_register_read(rt2x00dev, STA_CSR0);
qual->rx_failed = rt2x00_get_field32(reg, STA_CSR0_FCS_ERROR);
/*
* Update False CCA count from register.
*/
reg = rt2x00usb_register_read(rt2x00dev, STA_CSR1);
qual->false_cca = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
}
static inline void rt73usb_set_vgc(struct rt2x00_dev *rt2x00dev,
struct link_qual *qual, u8 vgc_level)
{
if (qual->vgc_level != vgc_level) {
rt73usb_bbp_write(rt2x00dev, 17, vgc_level);
qual->vgc_level = vgc_level;
qual->vgc_level_reg = vgc_level;
}
}
static void rt73usb_reset_tuner(struct rt2x00_dev *rt2x00dev,
struct link_qual *qual)
{
rt73usb_set_vgc(rt2x00dev, qual, 0x20);
}
static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev,
struct link_qual *qual, const u32 count)
{
u8 up_bound;
u8 low_bound;
/*
* Determine r17 bounds.
*/
if (rt2x00dev->curr_band == NL80211_BAND_5GHZ) {
low_bound = 0x28;
up_bound = 0x48;
if (rt2x00_has_cap_external_lna_a(rt2x00dev)) {
low_bound += 0x10;
up_bound += 0x10;
}
} else {
if (qual->rssi > -82) {
low_bound = 0x1c;
up_bound = 0x40;
} else if (qual->rssi > -84) {
low_bound = 0x1c;
up_bound = 0x20;
} else {
low_bound = 0x1c;
up_bound = 0x1c;
}
if (rt2x00_has_cap_external_lna_bg(rt2x00dev)) {
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 (qual->rssi > -35) {
rt73usb_set_vgc(rt2x00dev, qual, 0x60);
return;
}
/*
* Special big-R17 for short distance
*/
if (qual->rssi >= -58) {
rt73usb_set_vgc(rt2x00dev, qual, up_bound);
return;
}
/*
* Special big-R17 for middle-short distance
*/
if (qual->rssi >= -66) {
rt73usb_set_vgc(rt2x00dev, qual, low_bound + 0x10);
return;
}
/*
* Special mid-R17 for middle distance
*/
if (qual->rssi >= -74) {
rt73usb_set_vgc(rt2x00dev, qual, 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 - qual->rssi);
if (low_bound > up_bound)
up_bound = low_bound;
if (qual->vgc_level > up_bound) {
rt73usb_set_vgc(rt2x00dev, qual, 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 ((qual->false_cca > 512) && (qual->vgc_level < up_bound))
rt73usb_set_vgc(rt2x00dev, qual,
min_t(u8, qual->vgc_level + 4, up_bound));
else if ((qual->false_cca < 100) && (qual->vgc_level > low_bound))
rt73usb_set_vgc(rt2x00dev, qual,
max_t(u8, qual->vgc_level - 4, low_bound));
}
/*
* Queue handlers.
*/
static void rt73usb_start_queue(struct data_queue *queue)
{
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
u32 reg;
switch (queue->qid) {
case QID_RX:
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR0);
rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX, 0);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR0, reg);
break;
case QID_BEACON:
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR9);
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);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
break;
default:
break;
}
}
static void rt73usb_stop_queue(struct data_queue *queue)
{
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
u32 reg;
switch (queue->qid) {
case QID_RX:
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR0);
rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX, 1);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR0, reg);
break;
case QID_BEACON:
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR9);
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);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
break;
default:
break;
}
}
/*
* Firmware functions
*/
static char *rt73usb_get_firmware_name(struct rt2x00_dev *rt2x00dev)
{
return FIRMWARE_RT2571;
}
static int rt73usb_check_firmware(struct rt2x00_dev *rt2x00dev,
const u8 *data, const size_t len)
{
u16 fw_crc;
u16 crc;
/*
* Only support 2kb firmware files.
*/
if (len != 2048)
return FW_BAD_LENGTH;
/*
* 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.
*/
fw_crc = (data[len - 2] << 8 | data[len - 1]);
/*
* Use the crc itu-t algorithm.
*/
crc = crc_itu_t(0, data, len - 2);
crc = crc_itu_t_byte(crc, 0);
crc = crc_itu_t_byte(crc, 0);
return (fw_crc == crc) ? FW_OK : FW_BAD_CRC;
}
static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev,
const u8 *data, const size_t len)
{
unsigned int i;
int status;
u32 reg;
/*
* Wait for stable hardware.
*/
for (i = 0; i < 100; i++) {
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR0);
if (reg)
break;
msleep(1);
}
if (!reg) {
rt2x00_err(rt2x00dev, "Unstable hardware\n");
return -EBUSY;
}
/*
* Write firmware to device.
*/
rt2x00usb_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE, data, len);
/*
* 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) {
rt2x00_err(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;
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR0);
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);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR0, reg);
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR1);
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);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR1, reg);
/*
* CCK TXD BBP registers
*/
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR2);
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);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR2, reg);
/*
* OFDM TXD BBP registers
*/
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR3);
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);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR3, reg);
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR7);
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);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR7, reg);
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR8);
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);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR8, reg);
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR9);
rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_INTERVAL, 0);
rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 0);
rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 0);
rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 0);
rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
rt2x00_set_field32(&reg, TXRX_CSR9_TIMESTAMP_COMPENSATE, 0);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR15, 0x0000000f);
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR6);
rt2x00_set_field32(&reg, MAC_CSR6_MAX_FRAME_UNIT, 0xfff);
rt2x00usb_register_write(rt2x00dev, MAC_CSR6, reg);
rt2x00usb_register_write(rt2x00dev, MAC_CSR10, 0x00000718);
if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
return -EBUSY;
rt2x00usb_register_write(rt2x00dev, MAC_CSR13, 0x00007f00);
/*
* Invalidate all Shared Keys (SEC_CSR0),
* and clear the Shared key Cipher algorithms (SEC_CSR1 & SEC_CSR5)
*/
rt2x00usb_register_write(rt2x00dev, SEC_CSR0, 0x00000000);
rt2x00usb_register_write(rt2x00dev, SEC_CSR1, 0x00000000);
rt2x00usb_register_write(rt2x00dev, SEC_CSR5, 0x00000000);
reg = 0x000023b0;
if (rt2x00_rf(rt2x00dev, RF5225) || rt2x00_rf(rt2x00dev, RF2527))
rt2x00_set_field32(&reg, PHY_CSR1_RF_RPI, 1);
rt2x00usb_register_write(rt2x00dev, PHY_CSR1, reg);
rt2x00usb_register_write(rt2x00dev, PHY_CSR5, 0x00040a06);
rt2x00usb_register_write(rt2x00dev, PHY_CSR6, 0x00080606);
rt2x00usb_register_write(rt2x00dev, PHY_CSR7, 0x00000408);
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR9);
rt2x00_set_field32(&reg, MAC_CSR9_CW_SELECT, 0);
rt2x00usb_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.
*/
rt2x00usb_register_write(rt2x00dev, HW_BEACON_BASE0, 0);
rt2x00usb_register_write(rt2x00dev, HW_BEACON_BASE1, 0);
rt2x00usb_register_write(rt2x00dev, HW_BEACON_BASE2, 0);
rt2x00usb_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.
*/
reg = rt2x00usb_register_read(rt2x00dev, STA_CSR0);
reg = rt2x00usb_register_read(rt2x00dev, STA_CSR1);
reg = rt2x00usb_register_read(rt2x00dev, STA_CSR2);
/*
* Reset MAC and BBP registers.
*/
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR1);
rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 1);
rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 1);
rt2x00usb_register_write(rt2x00dev, MAC_CSR1, reg);
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR1);
rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 0);
rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 0);
rt2x00usb_register_write(rt2x00dev, MAC_CSR1, reg);
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR1);
rt2x00_set_field32(&reg, MAC_CSR1_HOST_READY, 1);
rt2x00usb_register_write(rt2x00dev, MAC_CSR1, reg);
return 0;
}
static int rt73usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
{
unsigned int i;
u8 value;
for (i = 0; i < REGISTER_USB_BUSY_COUNT; i++) {
value = rt73usb_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 rt73usb_init_bbp(struct rt2x00_dev *rt2x00dev)
{
unsigned int i;
u16 eeprom;
u8 reg_id;
u8 value;
if (unlikely(rt73usb_wait_bbp_ready(rt2x00dev)))
return -EACCES;
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++) {
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);
rt73usb_bbp_write(rt2x00dev, reg_id, value);
}
}
return 0;
}
/*
* Device state switch handlers.
*/
static int rt73usb_enable_radio(struct rt2x00_dev *rt2x00dev)
{
/*
* Initialize all registers.
*/
if (unlikely(rt73usb_init_registers(rt2x00dev) ||
rt73usb_init_bbp(rt2x00dev)))
return -EIO;
return 0;
}
static void rt73usb_disable_radio(struct rt2x00_dev *rt2x00dev)
{
rt2x00usb_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
/*
* Disable synchronisation.
*/
rt2x00usb_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, reg2;
unsigned int i;
bool put_to_sleep;
put_to_sleep = (state != STATE_AWAKE);
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR12);
rt2x00_set_field32(&reg, MAC_CSR12_FORCE_WAKEUP, !put_to_sleep);
rt2x00_set_field32(&reg, MAC_CSR12_PUT_TO_SLEEP, put_to_sleep);
rt2x00usb_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++) {
reg2 = rt2x00usb_register_read(rt2x00dev, MAC_CSR12);
state = rt2x00_get_field32(reg2, MAC_CSR12_BBP_CURRENT_STATE);
if (state == !put_to_sleep)
return 0;
rt2x00usb_register_write(rt2x00dev, MAC_CSR12, reg);
msleep(10);
}
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_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 = rt73usb_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 rt73usb_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_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,
(txdesc->rate_mode == RATE_MODE_OFDM));
rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->u.plcp.ifs);
rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));
rt2x00_set_field32(&word, TXD_W0_TKIP_MIC,
test_bit(ENTRY_TXD_ENCRYPT_MMIC, &txdesc->flags));
rt2x00_set_field32(&word, TXD_W0_KEY_TABLE,
test_bit(ENTRY_TXD_ENCRYPT_PAIRWISE, &txdesc->flags));
rt2x00_set_field32(&word, TXD_W0_KEY_INDEX, txdesc->key_idx);
rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, txdesc->length);
rt2x00_set_field32(&word, TXD_W0_BURST2,
test_bit(ENTRY_TXD_BURST, &txdesc->flags));
rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, txdesc->cipher);
rt2x00_desc_write(txd, 0, word);
word = rt2x00_desc_read(txd, 1);
rt2x00_set_field32(&word, TXD_W1_HOST_Q_ID, entry->queue->qid);
rt2x00_set_field32(&word, TXD_W1_AIFSN, 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_set_field32(&word, TXD_W1_IV_OFFSET, txdesc->iv_offset);
rt2x00_set_field32(&word, TXD_W1_HW_SEQUENCE,
test_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags));
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]);
}
word = rt2x00_desc_read(txd, 5);
rt2x00_set_field32(&word, TXD_W5_TX_POWER,
TXPOWER_TO_DEV(entry->queue->rt2x00dev->tx_power));
rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1);
rt2x00_desc_write(txd, 5, word);
/*
* 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 rt73usb_write_beacon(struct queue_entry *entry,
struct txentry_desc *txdesc)
{
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
unsigned int beacon_base;
unsigned int padding_len;
u32 orig_reg, reg;
/*
* Disable beaconing while we are reloading the beacon data,
* otherwise we might be sending out invalid data.
*/
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR9);
orig_reg = reg;
rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, 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.
*/
rt73usb_write_tx_desc(entry, txdesc);
/*
* Dump beacon to userspace through debugfs.
*/
rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry);
/*
* Write entire beacon with descriptor and padding to register.
*/
padding_len = roundup(entry->skb->len, 4) - entry->skb->len;
if (padding_len && skb_pad(entry->skb, padding_len)) {
rt2x00_err(rt2x00dev, "Failure padding beacon, aborting\n");
/* skb freed by skb_pad() on failure */
entry->skb = NULL;
rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, orig_reg);
return;
}
beacon_base = HW_BEACON_OFFSET(entry->entry_idx);
rt2x00usb_register_multiwrite(rt2x00dev, beacon_base, entry->skb->data,
entry->skb->len + padding_len);
/*
* Enable beaconing again.
*
* For Wi-Fi faily generated beacons between participating stations.
* Set TBTT phase adaptive adjustment step to 8us (default 16us)
*/
rt2x00usb_register_write(rt2x00dev, TXRX_CSR10, 0x00001008);
rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 1);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
/*
* Clean up the beacon skb.
*/
dev_kfree_skb(entry->skb);
entry->skb = NULL;
}
static void rt73usb_clear_beacon(struct queue_entry *entry)
{
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
unsigned int beacon_base;
u32 orig_reg, reg;
/*
* Disable beaconing while we are reloading the beacon data,
* otherwise we might be sending out invalid data.
*/
orig_reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR9);
reg = orig_reg;
rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
/*
* Clear beacon.
*/
beacon_base = HW_BEACON_OFFSET(entry->entry_idx);
rt2x00usb_register_write(rt2x00dev, beacon_base, 0);
/*
* Restore beaconing state.
*/
rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, orig_reg);
}
static int rt73usb_get_tx_data_len(struct queue_entry *entry)
{
int length;
/*
* The length _must_ be a multiple of 4,
* but it must _not_ be a multiple of the USB packet size.
*/
length = roundup(entry->skb->len, 4);
length += (4 * !(length % entry->queue->usb_maxpacket));
return length;
}
/*
* RX control handlers
*/
static int rt73usb_agc_to_rssi(struct rt2x00_dev *rt2x00dev, int rxd_w1)
{
u8 offset = rt2x00dev->lna_gain;
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->curr_band == NL80211_BAND_5GHZ) {
if (rt2x00_has_cap_external_lna_a(rt2x00dev)) {
if (lna == 3 || lna == 2)
offset += 10;
} else {
if (lna == 3)
offset += 6;
else if (lna == 2)
offset += 8;
}
}
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 rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
__le32 *rxd = (__le32 *)entry->skb->data;
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;
rxdesc->cipher = rt2x00_get_field32(word0, RXD_W0_CIPHER_ALG);
rxdesc->cipher_status = rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR);
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;
rxdesc->icv = _rt2x00_desc_read(rxd, 4);
rxdesc->dev_flags |= RXDONE_CRYPTO_ICV;
/*
* Hardware has stripped IV/EIV data from 802.11 frame during
* decryption. It has provided the data separately but rt2x00lib
* should decide if it should be reinserted.
*/
rxdesc->flags |= RX_FLAG_IV_STRIPPED;
/*
* The hardware has already checked the Michael Mic and has
* stripped it from the frame. Signal this to mac80211.
*/
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 = rt73usb_agc_to_rssi(rt2x00dev, word1);
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;
/*
* Set skb pointers, and update frame information.
*/
skb_pull(entry->skb, entry->queue->desc_size);
skb_trim(entry->skb, rxdesc->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);
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_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);
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_EXTERNAL_LNA, 0);
rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
rt2x00_eeprom_dbg(rt2x00dev, "NIC: 0x%04x\n", word);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_LED);
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);
rt2x00_eeprom_dbg(rt2x00dev, "Led: 0x%04x\n", word);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ);
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);
rt2x00_eeprom_dbg(rt2x00dev, "Freq: 0x%04x\n", word);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG);
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);
rt2x00_eeprom_dbg(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);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A);
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);
rt2x00_eeprom_dbg(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.
*/
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA);
/*
* Identify RF chipset.
*/
value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR0);
rt2x00_set_chip(rt2x00dev, rt2x00_get_field32(reg, MAC_CSR0_CHIPSET),
value, rt2x00_get_field32(reg, MAC_CSR0_REVISION));
if (!rt2x00_rt(rt2x00dev, RT2573) || (rt2x00_rev(rt2x00dev) == 0)) {
rt2x00_err(rt2x00dev, "Invalid RT chipset detected\n");
return -ENODEV;
}
if (!rt2x00_rf(rt2x00dev, RF5226) &&
!rt2x00_rf(rt2x00dev, RF2528) &&
!rt2x00_rf(rt2x00dev, RF5225) &&
!rt2x00_rf(rt2x00dev, RF2527)) {
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);
/*
* Read the Frame type.
*/
if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_FRAME_TYPE))
__set_bit(CAPABILITY_FRAME_TYPE, &rt2x00dev->cap_flags);
/*
* 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 frequency offset.
*/
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ);
rt2x00dev->freq_offset = rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET);
/*
* Read external LNA informations.
*/
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC);
if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA)) {
__set_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags);
__set_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags);
}
/*
* Store led settings, for correct led behaviour.
*/
#ifdef CONFIG_RT2X00_LIB_LEDS
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_LED);
rt73usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
rt73usb_init_led(rt2x00dev, &rt2x00dev->led_assoc, LED_TYPE_ASSOC);
if (value == LED_MODE_SIGNAL_STRENGTH)
rt73usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
LED_TYPE_QUALITY);
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_RT2X00_LIB_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 int rt73usb_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_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, SIGNAL_DBM);
ieee80211_hw_set(rt2x00dev->hw, SUPPORTS_PS);
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, RF2528)) {
spec->num_channels = ARRAY_SIZE(rf_vals_bg_2528);
spec->channels = rf_vals_bg_2528;
} else if (rt2x00_rf(rt2x00dev, 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, RF2527)) {
spec->num_channels = 14;
spec->channels = rf_vals_5225_2527;
} else if (rt2x00_rf(rt2x00dev, RF5225)) {
spec->supported_bands |= SUPPORT_BAND_5GHZ;
spec->num_channels = ARRAY_SIZE(rf_vals_5225_2527);
spec->channels = rf_vals_5225_2527;
}
/*
* 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_G_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) {
tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
for (i = 14; i < spec->num_channels; i++) {
info[i].max_power = MAX_TXPOWER;
info[i].default_power1 =
TXPOWER_FROM_DEV(tx_power[i - 14]);
}
}
return 0;
}
static int rt73usb_probe_hw(struct rt2x00_dev *rt2x00dev)
{
int retval;
u32 reg;
/*
* Allocate eeprom data.
*/
retval = rt73usb_validate_eeprom(rt2x00dev);
if (retval)
return retval;
retval = rt73usb_init_eeprom(rt2x00dev);
if (retval)
return retval;
/*
* Enable rfkill polling by setting GPIO direction of the
* rfkill switch GPIO pin correctly.
*/
reg = rt2x00usb_register_read(rt2x00dev, MAC_CSR13);
rt2x00_set_field32(&reg, MAC_CSR13_DIR7, 0);
rt2x00usb_register_write(rt2x00dev, MAC_CSR13, reg);
/*
* Initialize hw specifications.
*/
retval = rt73usb_probe_hw_mode(rt2x00dev);
if (retval)
return retval;
/*
* This device has multiple filters for control frames,
* but has no a separate filter for PS Poll frames.
*/
__set_bit(CAPABILITY_CONTROL_FILTERS, &rt2x00dev->cap_flags);
/*
* This device requires firmware.
*/
__set_bit(REQUIRE_FIRMWARE, &rt2x00dev->cap_flags);
if (!modparam_nohwcrypt)
__set_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags);
__set_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags);
__set_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags);
/*
* Set the rssi offset.
*/
rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
return 0;
}
/*
* IEEE80211 stack callback functions.
*/
static int rt73usb_conf_tx(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
unsigned int link_id, u16 queue_idx,
const struct ieee80211_tx_queue_params *params)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
struct data_queue *queue;
struct rt2x00_field32 field;
int retval;
u32 reg;
u32 offset;
/*
* First pass the configuration through rt2x00lib, that will
* update the queue settings and validate the input. After that
* we are free to update the registers based on the value
* in the queue parameter.
*/
retval = rt2x00mac_conf_tx(hw, vif, link_id, queue_idx, params);
if (retval)
return retval;
/*
* We only need to perform additional register initialization
* for WMM queues/
*/
if (queue_idx >= 4)
return 0;
queue = rt2x00queue_get_tx_queue(rt2x00dev, queue_idx);
/* Update WMM TXOP register */
offset = AC_TXOP_CSR0 + (sizeof(u32) * (!!(queue_idx & 2)));
field.bit_offset = (queue_idx & 1) * 16;
field.bit_mask = 0xffff << field.bit_offset;
reg = rt2x00usb_register_read(rt2x00dev, offset);
rt2x00_set_field32(&reg, field, queue->txop);
rt2x00usb_register_write(rt2x00dev, offset, reg);
/* Update WMM registers */
field.bit_offset = queue_idx * 4;
field.bit_mask = 0xf << field.bit_offset;
reg = rt2x00usb_register_read(rt2x00dev, AIFSN_CSR);
rt2x00_set_field32(&reg, field, queue->aifs);
rt2x00usb_register_write(rt2x00dev, AIFSN_CSR, reg);
reg = rt2x00usb_register_read(rt2x00dev, CWMIN_CSR);
rt2x00_set_field32(&reg, field, queue->cw_min);
rt2x00usb_register_write(rt2x00dev, CWMIN_CSR, reg);
reg = rt2x00usb_register_read(rt2x00dev, CWMAX_CSR);
rt2x00_set_field32(&reg, field, queue->cw_max);
rt2x00usb_register_write(rt2x00dev, CWMAX_CSR, reg);
return 0;
}
static u64 rt73usb_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
u64 tsf;
u32 reg;
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR13);
tsf = (u64) rt2x00_get_field32(reg, TXRX_CSR13_HIGH_TSFTIMER) << 32;
reg = rt2x00usb_register_read(rt2x00dev, TXRX_CSR12);
tsf |= rt2x00_get_field32(reg, TXRX_CSR12_LOW_TSFTIMER);
return tsf;
}
static const struct ieee80211_ops rt73usb_mac80211_ops = {
.tx = rt2x00mac_tx,
.wake_tx_queue = ieee80211_handle_wake_tx_queue,
.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 = rt73usb_conf_tx,
.get_tsf = rt73usb_get_tsf,
.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 rt73usb_rt2x00_ops = {
.probe_hw = rt73usb_probe_hw,
.get_firmware_name = rt73usb_get_firmware_name,
.check_firmware = rt73usb_check_firmware,
.load_firmware = rt73usb_load_firmware,
.initialize = rt2x00usb_initialize,
.uninitialize = rt2x00usb_uninitialize,
.clear_entry = rt2x00usb_clear_entry,
.set_device_state = rt73usb_set_device_state,
.rfkill_poll = rt73usb_rfkill_poll,
.link_stats = rt73usb_link_stats,
.reset_tuner = rt73usb_reset_tuner,
.link_tuner = rt73usb_link_tuner,
.watchdog = rt2x00usb_watchdog,
.start_queue = rt73usb_start_queue,
.kick_queue = rt2x00usb_kick_queue,
.stop_queue = rt73usb_stop_queue,
.flush_queue = rt2x00usb_flush_queue,
.write_tx_desc = rt73usb_write_tx_desc,
.write_beacon = rt73usb_write_beacon,
.clear_beacon = rt73usb_clear_beacon,
.get_tx_data_len = rt73usb_get_tx_data_len,
.fill_rxdone = rt73usb_fill_rxdone,
.config_shared_key = rt73usb_config_shared_key,
.config_pairwise_key = rt73usb_config_pairwise_key,
.config_filter = rt73usb_config_filter,
.config_intf = rt73usb_config_intf,
.config_erp = rt73usb_config_erp,
.config_ant = rt73usb_config_ant,
.config = rt73usb_config,
};
static void rt73usb_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 = 4;
queue->data_size = MGMT_FRAME_SIZE;
queue->desc_size = TXINFO_SIZE;
queue->priv_size = sizeof(struct queue_entry_priv_usb);
break;
case QID_ATIM:
default:
BUG();
break;
}
}
static const struct rt2x00_ops rt73usb_ops = {
.name = KBUILD_MODNAME,
.max_ap_intf = 4,
.eeprom_size = EEPROM_SIZE,
.rf_size = RF_SIZE,
.tx_queues = NUM_TX_QUEUES,
.queue_init = rt73usb_queue_init,
.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 const struct usb_device_id rt73usb_device_table[] = {
/* AboCom */
{ USB_DEVICE(0x07b8, 0xb21b) },
{ USB_DEVICE(0x07b8, 0xb21c) },
{ USB_DEVICE(0x07b8, 0xb21d) },
{ USB_DEVICE(0x07b8, 0xb21e) },
{ USB_DEVICE(0x07b8, 0xb21f) },
/* AL */
{ USB_DEVICE(0x14b2, 0x3c10) },
/* Amigo */
{ USB_DEVICE(0x148f, 0x9021) },
{ USB_DEVICE(0x0eb0, 0x9021) },
/* AMIT */
{ USB_DEVICE(0x18c5, 0x0002) },
/* Askey */
{ USB_DEVICE(0x1690, 0x0722) },
/* ASUS */
{ USB_DEVICE(0x0b05, 0x1723) },
{ USB_DEVICE(0x0b05, 0x1724) },
/* Belkin */
{ USB_DEVICE(0x050d, 0x7050) }, /* FCC ID: K7SF5D7050B ver. 3.x */
{ USB_DEVICE(0x050d, 0x705a) },
{ USB_DEVICE(0x050d, 0x905b) },
{ USB_DEVICE(0x050d, 0x905c) },
/* Billionton */
{ USB_DEVICE(0x1631, 0xc019) },
{ USB_DEVICE(0x08dd, 0x0120) },
/* Buffalo */
{ USB_DEVICE(0x0411, 0x00d8) },
{ USB_DEVICE(0x0411, 0x00d9) },
{ USB_DEVICE(0x0411, 0x00e6) },
{ USB_DEVICE(0x0411, 0x00f4) },
{ USB_DEVICE(0x0411, 0x0116) },
{ USB_DEVICE(0x0411, 0x0119) },
{ USB_DEVICE(0x0411, 0x0137) },
/* CEIVA */
{ USB_DEVICE(0x178d, 0x02be) },
/* CNet */
{ USB_DEVICE(0x1371, 0x9022) },
{ USB_DEVICE(0x1371, 0x9032) },
/* Conceptronic */
{ USB_DEVICE(0x14b2, 0x3c22) },
/* Corega */
{ USB_DEVICE(0x07aa, 0x002e) },
/* D-Link */
{ USB_DEVICE(0x07d1, 0x3c03) },
{ USB_DEVICE(0x07d1, 0x3c04) },
{ USB_DEVICE(0x07d1, 0x3c06) },
{ USB_DEVICE(0x07d1, 0x3c07) },
/* Edimax */
{ USB_DEVICE(0x7392, 0x7318) },
{ USB_DEVICE(0x7392, 0x7618) },
/* EnGenius */
{ USB_DEVICE(0x1740, 0x3701) },
/* Gemtek */
{ USB_DEVICE(0x15a9, 0x0004) },
/* Gigabyte */
{ USB_DEVICE(0x1044, 0x8008) },
{ USB_DEVICE(0x1044, 0x800a) },
/* Huawei-3Com */
{ USB_DEVICE(0x1472, 0x0009) },
/* Hercules */
{ USB_DEVICE(0x06f8, 0xe002) },
{ USB_DEVICE(0x06f8, 0xe010) },
{ USB_DEVICE(0x06f8, 0xe020) },
/* Linksys */
{ USB_DEVICE(0x13b1, 0x0020) },
{ USB_DEVICE(0x13b1, 0x0023) },
{ USB_DEVICE(0x13b1, 0x0028) },
/* MSI */
{ USB_DEVICE(0x0db0, 0x4600) },
{ USB_DEVICE(0x0db0, 0x6877) },
{ USB_DEVICE(0x0db0, 0x6874) },
{ USB_DEVICE(0x0db0, 0xa861) },
{ USB_DEVICE(0x0db0, 0xa874) },
/* Ovislink */
{ USB_DEVICE(0x1b75, 0x7318) },
/* Ralink */
{ USB_DEVICE(0x04bb, 0x093d) },
{ USB_DEVICE(0x148f, 0x2573) },
{ USB_DEVICE(0x148f, 0x2671) },
{ USB_DEVICE(0x0812, 0x3101) },
/* Qcom */
{ USB_DEVICE(0x18e8, 0x6196) },
{ USB_DEVICE(0x18e8, 0x6229) },
{ USB_DEVICE(0x18e8, 0x6238) },
/* Samsung */
{ USB_DEVICE(0x04e8, 0x4471) },
/* Senao */
{ USB_DEVICE(0x1740, 0x7100) },
/* Sitecom */
{ USB_DEVICE(0x0df6, 0x0024) },
{ USB_DEVICE(0x0df6, 0x0027) },
{ USB_DEVICE(0x0df6, 0x002f) },
{ USB_DEVICE(0x0df6, 0x90ac) },
{ USB_DEVICE(0x0df6, 0x9712) },
/* Surecom */
{ USB_DEVICE(0x0769, 0x31f3) },
/* Tilgin */
{ USB_DEVICE(0x6933, 0x5001) },
/* Philips */
{ USB_DEVICE(0x0471, 0x200a) },
/* Planex */
{ USB_DEVICE(0x2019, 0xab01) },
{ USB_DEVICE(0x2019, 0xab50) },
/* WideTell */
{ USB_DEVICE(0x7167, 0x3840) },
/* Zcom */
{ USB_DEVICE(0x0cde, 0x001c) },
/* ZyXEL */
{ USB_DEVICE(0x0586, 0x3415) },
{ 0, }
};
MODULE_AUTHOR(DRV_PROJECT);
MODULE_VERSION(DRV_VERSION);
MODULE_DESCRIPTION("Ralink RT73 USB Wireless LAN driver.");
MODULE_DEVICE_TABLE(usb, rt73usb_device_table);
MODULE_FIRMWARE(FIRMWARE_RT2571);
MODULE_LICENSE("GPL");
static int rt73usb_probe(struct usb_interface *usb_intf,
const struct usb_device_id *id)
{
return rt2x00usb_probe(usb_intf, &rt73usb_ops);
}
static struct usb_driver rt73usb_driver = {
.name = KBUILD_MODNAME,
.id_table = rt73usb_device_table,
.probe = rt73usb_probe,
.disconnect = rt2x00usb_disconnect,
.suspend = rt2x00usb_suspend,
.resume = rt2x00usb_resume,
.reset_resume = rt2x00usb_resume,
.disable_hub_initiated_lpm = 1,
};
module_usb_driver(rt73usb_driver);