// SPDX-License-Identifier: GPL-2.0-or-later
/*
Copyright ( C ) 2004 - 2009 Ivo van Doorn < IvDoorn @ gmail . com >
< http : //rt2x00.serialmonkey.com>
*/
/*
Module : rt2500pci
Abstract : rt2500pci device specific routines .
Supported chipsets : RT2560 .
*/
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/eeprom_93cx6.h>
#include <linux/slab.h>
#include "rt2x00.h"
#include "rt2x00mmio.h"
#include "rt2x00pci.h"
#include "rt2500pci.h"
/*
* Register access .
* All access to the CSR registers will go through the methods
* rt2x00mmio_register_read and rt2x00mmio_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 .
*/
#define WAIT_FOR_BBP(__dev, __reg) \
rt2x00mmio_regbusy_read((__dev), BBPCSR, BBPCSR_BUSY, (__reg))
#define WAIT_FOR_RF(__dev, __reg) \
rt2x00mmio_regbusy_read((__dev), RFCSR, RFCSR_BUSY, (__reg))
static void rt2500pci_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 = 0 ;
rt2x00_set_field32(®, BBPCSR_VALUE, value);
rt2x00_set_field32(®, BBPCSR_REGNUM, word);
rt2x00_set_field32(®, BBPCSR_BUSY, 1 );
rt2x00_set_field32(®, BBPCSR_WRITE_CONTROL, 1 );
rt2x00mmio_register_write(rt2x00dev, BBPCSR, reg);
}
mutex_unlock(&rt2x00dev->csr_mutex);
}
static u8 rt2500pci_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 0 xffffffff
* which means we return 0 xff to the caller .
*/
if (WAIT_FOR_BBP(rt2x00dev, ®)) {
reg = 0 ;
rt2x00_set_field32(®, BBPCSR_REGNUM, word);
rt2x00_set_field32(®, BBPCSR_BUSY, 1 );
rt2x00_set_field32(®, BBPCSR_WRITE_CONTROL, 0 );
rt2x00mmio_register_write(rt2x00dev, BBPCSR, reg);
WAIT_FOR_BBP(rt2x00dev, ®);
}
value = rt2x00_get_field32(reg, BBPCSR_VALUE);
mutex_unlock(&rt2x00dev->csr_mutex);
return value;
}
static void rt2500pci_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 = 0 ;
rt2x00_set_field32(®, RFCSR_VALUE, value);
rt2x00_set_field32(®, RFCSR_NUMBER_OF_BITS, 20 );
rt2x00_set_field32(®, RFCSR_IF_SELECT, 0 );
rt2x00_set_field32(®, RFCSR_BUSY, 1 );
rt2x00mmio_register_write(rt2x00dev, RFCSR, reg);
rt2x00_rf_write(rt2x00dev, word, value);
}
mutex_unlock(&rt2x00dev->csr_mutex);
}
static void rt2500pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
{
struct rt2x00_dev *rt2x00dev = eeprom->data;
u32 reg;
reg = rt2x00mmio_register_read(rt2x00dev, CSR21);
eeprom->reg_data_in = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_IN);
eeprom->reg_data_out = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_OUT);
eeprom->reg_data_clock =
!!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_CLOCK);
eeprom->reg_chip_select =
!!rt2x00_get_field32(reg, CSR21_EEPROM_CHIP_SELECT);
}
static void rt2500pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
{
struct rt2x00_dev *rt2x00dev = eeprom->data;
u32 reg = 0 ;
rt2x00_set_field32(®, CSR21_EEPROM_DATA_IN, !!eeprom->reg_data_in);
rt2x00_set_field32(®, CSR21_EEPROM_DATA_OUT, !!eeprom->reg_data_out);
rt2x00_set_field32(®, CSR21_EEPROM_DATA_CLOCK,
!!eeprom->reg_data_clock);
rt2x00_set_field32(®, CSR21_EEPROM_CHIP_SELECT,
!!eeprom->reg_chip_select);
rt2x00mmio_register_write(rt2x00dev, CSR21, reg);
}
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
static const struct rt2x00debug rt2500pci_rt2x00debug = {
.owner = THIS_MODULE,
.csr = {
.read = rt2x00mmio_register_read,
.write = rt2x00mmio_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 = rt2500pci_bbp_read,
.write = rt2500pci_bbp_write,
.word_base = BBP_BASE,
.word_size = sizeof (u8),
.word_count = BBP_SIZE / sizeof (u8),
},
.rf = {
.read = rt2x00_rf_read,
.write = rt2500pci_rf_write,
.word_base = RF_BASE,
.word_size = sizeof (u32),
.word_count = RF_SIZE / sizeof (u32),
},
};
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
static int rt2500pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
reg = rt2x00mmio_register_read(rt2x00dev, GPIOCSR);
return rt2x00_get_field32(reg, GPIOCSR_VAL0);
}
#ifdef CONFIG_RT2X00_LIB_LEDS
static void rt2500pci_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;
u32 reg;
reg = rt2x00mmio_register_read(led->rt2x00dev, LEDCSR);
if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
rt2x00_set_field32(®, LEDCSR_LINK, enabled);
else if (led->type == LED_TYPE_ACTIVITY)
rt2x00_set_field32(®, LEDCSR_ACTIVITY, enabled);
rt2x00mmio_register_write(led->rt2x00dev, LEDCSR, reg);
}
static int rt2500pci_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 = rt2x00mmio_register_read(led->rt2x00dev, LEDCSR);
rt2x00_set_field32(®, LEDCSR_ON_PERIOD, *delay_on);
rt2x00_set_field32(®, LEDCSR_OFF_PERIOD, *delay_off);
rt2x00mmio_register_write(led->rt2x00dev, LEDCSR, reg);
return 0 ;
}
static void rt2500pci_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 = rt2500pci_brightness_set;
led->led_dev.blink_set = rt2500pci_blink_set;
led->flags = LED_INITIALIZED;
}
#endif /* CONFIG_RT2X00_LIB_LEDS */
/*
* Configuration handlers .
*/
static void rt2500pci_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 = rt2x00mmio_register_read(rt2x00dev, RXCSR0);
rt2x00_set_field32(®, RXCSR0_DROP_CRC,
!(filter_flags & FIF_FCSFAIL));
rt2x00_set_field32(®, RXCSR0_DROP_PHYSICAL,
!(filter_flags & FIF_PLCPFAIL));
rt2x00_set_field32(®, RXCSR0_DROP_CONTROL,
!(filter_flags & FIF_CONTROL));
rt2x00_set_field32(®, RXCSR0_DROP_NOT_TO_ME,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags));
rt2x00_set_field32(®, RXCSR0_DROP_TODS,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags) &&
!rt2x00dev->intf_ap_count);
rt2x00_set_field32(®, RXCSR0_DROP_VERSION_ERROR, 1 );
rt2x00_set_field32(®, RXCSR0_DROP_MCAST,
!(filter_flags & FIF_ALLMULTI));
rt2x00_set_field32(®, RXCSR0_DROP_BCAST, 0 );
rt2x00mmio_register_write(rt2x00dev, RXCSR0, reg);
}
static void rt2500pci_config_intf(struct rt2x00_dev *rt2x00dev,
struct rt2x00_intf *intf,
struct rt2x00intf_conf *conf,
const unsigned int flags)
{
struct data_queue *queue = rt2x00dev->bcn;
unsigned int bcn_preload;
u32 reg;
if (flags & CONFIG_UPDATE_TYPE) {
/*
* Enable beacon config
*/
bcn_preload = PREAMBLE + GET_DURATION(IEEE80211_HEADER, 20 );
reg = rt2x00mmio_register_read(rt2x00dev, BCNCSR1);
rt2x00_set_field32(®, BCNCSR1_PRELOAD, bcn_preload);
rt2x00_set_field32(®, BCNCSR1_BEACON_CWMIN, queue->cw_min);
rt2x00mmio_register_write(rt2x00dev, BCNCSR1, reg);
/*
* Enable synchronisation .
*/
reg = rt2x00mmio_register_read(rt2x00dev, CSR14);
rt2x00_set_field32(®, CSR14_TSF_SYNC, conf->sync);
rt2x00mmio_register_write(rt2x00dev, CSR14, reg);
}
if (flags & CONFIG_UPDATE_MAC)
rt2x00mmio_register_multiwrite(rt2x00dev, CSR3,
conf->mac, sizeof (conf->mac));
if (flags & CONFIG_UPDATE_BSSID)
rt2x00mmio_register_multiwrite(rt2x00dev, CSR5,
conf->bssid, sizeof (conf->bssid));
}
static void rt2500pci_config_erp(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_erp *erp,
u32 changed)
{
int preamble_mask;
u32 reg;
/*
* When short preamble is enabled , we should set bit 0 x08
*/
if (changed & BSS_CHANGED_ERP_PREAMBLE) {
preamble_mask = erp->short_preamble << 3 ;
reg = rt2x00mmio_register_read(rt2x00dev, TXCSR1);
rt2x00_set_field32(®, TXCSR1_ACK_TIMEOUT, 0 x162);
rt2x00_set_field32(®, TXCSR1_ACK_CONSUME_TIME, 0 xa2);
rt2x00_set_field32(®, TXCSR1_TSF_OFFSET, IEEE80211_HEADER);
rt2x00_set_field32(®, TXCSR1_AUTORESPONDER, 1 );
rt2x00mmio_register_write(rt2x00dev, TXCSR1, reg);
reg = rt2x00mmio_register_read(rt2x00dev, ARCSR2);
rt2x00_set_field32(®, ARCSR2_SIGNAL, 0 x00);
rt2x00_set_field32(®, ARCSR2_SERVICE, 0 x04);
rt2x00_set_field32(®, ARCSR2_LENGTH,
GET_DURATION(ACK_SIZE, 10 ));
rt2x00mmio_register_write(rt2x00dev, ARCSR2, reg);
reg = rt2x00mmio_register_read(rt2x00dev, ARCSR3);
rt2x00_set_field32(®, ARCSR3_SIGNAL, 0 x01 | preamble_mask);
rt2x00_set_field32(®, ARCSR3_SERVICE, 0 x04);
rt2x00_set_field32(®, ARCSR2_LENGTH,
GET_DURATION(ACK_SIZE, 20 ));
rt2x00mmio_register_write(rt2x00dev, ARCSR3, reg);
reg = rt2x00mmio_register_read(rt2x00dev, ARCSR4);
rt2x00_set_field32(®, ARCSR4_SIGNAL, 0 x02 | preamble_mask);
rt2x00_set_field32(®, ARCSR4_SERVICE, 0 x04);
rt2x00_set_field32(®, ARCSR2_LENGTH,
GET_DURATION(ACK_SIZE, 55 ));
rt2x00mmio_register_write(rt2x00dev, ARCSR4, reg);
reg = rt2x00mmio_register_read(rt2x00dev, ARCSR5);
rt2x00_set_field32(®, ARCSR5_SIGNAL, 0 x03 | preamble_mask);
rt2x00_set_field32(®, ARCSR5_SERVICE, 0 x84);
rt2x00_set_field32(®, ARCSR2_LENGTH,
GET_DURATION(ACK_SIZE, 110 ));
rt2x00mmio_register_write(rt2x00dev, ARCSR5, reg);
}
if (changed & BSS_CHANGED_BASIC_RATES)
rt2x00mmio_register_write(rt2x00dev, ARCSR1, erp->basic_rates);
if (changed & BSS_CHANGED_ERP_SLOT) {
reg = rt2x00mmio_register_read(rt2x00dev, CSR11);
rt2x00_set_field32(®, CSR11_SLOT_TIME, erp->slot_time);
rt2x00mmio_register_write(rt2x00dev, CSR11, reg);
reg = rt2x00mmio_register_read(rt2x00dev, CSR18);
rt2x00_set_field32(®, CSR18_SIFS, erp->sifs);
rt2x00_set_field32(®, CSR18_PIFS, erp->pifs);
rt2x00mmio_register_write(rt2x00dev, CSR18, reg);
reg = rt2x00mmio_register_read(rt2x00dev, CSR19);
rt2x00_set_field32(®, CSR19_DIFS, erp->difs);
rt2x00_set_field32(®, CSR19_EIFS, erp->eifs);
rt2x00mmio_register_write(rt2x00dev, CSR19, reg);
}
if (changed & BSS_CHANGED_BEACON_INT) {
reg = rt2x00mmio_register_read(rt2x00dev, CSR12);
rt2x00_set_field32(®, CSR12_BEACON_INTERVAL,
erp->beacon_int * 16 );
rt2x00_set_field32(®, CSR12_CFP_MAX_DURATION,
erp->beacon_int * 16 );
rt2x00mmio_register_write(rt2x00dev, CSR12, reg);
}
}
static void rt2500pci_config_ant(struct rt2x00_dev *rt2x00dev,
struct antenna_setup *ant)
{
u32 reg;
u8 r14;
u8 r2;
/*
* 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);
reg = rt2x00mmio_register_read(rt2x00dev, BBPCSR1);
r14 = rt2500pci_bbp_read(rt2x00dev, 14 );
r2 = rt2500pci_bbp_read(rt2x00dev, 2 );
/*
* Configure the TX antenna .
*/
switch (ant->tx) {
case ANTENNA_A:
rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0 );
rt2x00_set_field32(®, BBPCSR1_CCK, 0 );
rt2x00_set_field32(®, BBPCSR1_OFDM, 0 );
break ;
case ANTENNA_B:
default :
rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2 );
rt2x00_set_field32(®, BBPCSR1_CCK, 2 );
rt2x00_set_field32(®, BBPCSR1_OFDM, 2 );
break ;
}
/*
* Configure the RX antenna .
*/
switch (ant->rx) {
case ANTENNA_A:
rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0 );
break ;
case ANTENNA_B:
default :
rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2 );
break ;
}
/*
* RT2525E and RT5222 need to flip TX I / Q
*/
if (rt2x00_rf(rt2x00dev, RF2525E) || rt2x00_rf(rt2x00dev, RF5222)) {
rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1 );
rt2x00_set_field32(®, BBPCSR1_CCK_FLIP, 1 );
rt2x00_set_field32(®, BBPCSR1_OFDM_FLIP, 1 );
/*
* RT2525E does not need RX I / Q Flip .
*/
if (rt2x00_rf(rt2x00dev, RF2525E))
rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0 );
} else {
rt2x00_set_field32(®, BBPCSR1_CCK_FLIP, 0 );
rt2x00_set_field32(®, BBPCSR1_OFDM_FLIP, 0 );
}
rt2x00mmio_register_write(rt2x00dev, BBPCSR1, reg);
rt2500pci_bbp_write(rt2x00dev, 14 , r14);
rt2500pci_bbp_write(rt2x00dev, 2 , r2);
}
static void rt2500pci_config_channel(struct rt2x00_dev *rt2x00dev,
struct rf_channel *rf, const int txpower)
{
u8 r70;
/*
* Set TXpower .
*/
rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
/*
* Switch on tuning bits .
* For RT2523 devices we do not need to update the R1 register .
*/
if (!rt2x00_rf(rt2x00dev, RF2523))
rt2x00_set_field32(&rf->rf1, RF1_TUNER, 1 );
rt2x00_set_field32(&rf->rf3, RF3_TUNER, 1 );
/*
* For RT2525 we should first set the channel to half band higher .
*/
if (rt2x00_rf(rt2x00dev, RF2525)) {
static const u32 vals[] = {
0 x00080cbe, 0 x00080d02, 0 x00080d06, 0 x00080d0a,
0 x00080d0e, 0 x00080d12, 0 x00080d16, 0 x00080d1a,
0 x00080d1e, 0 x00080d22, 0 x00080d26, 0 x00080d2a,
0 x00080d2e, 0 x00080d3a
};
rt2500pci_rf_write(rt2x00dev, 1 , rf->rf1);
rt2500pci_rf_write(rt2x00dev, 2 , vals[rf->channel - 1 ]);
rt2500pci_rf_write(rt2x00dev, 3 , rf->rf3);
if (rf->rf4)
rt2500pci_rf_write(rt2x00dev, 4 , rf->rf4);
}
rt2500pci_rf_write(rt2x00dev, 1 , rf->rf1);
rt2500pci_rf_write(rt2x00dev, 2 , rf->rf2);
rt2500pci_rf_write(rt2x00dev, 3 , rf->rf3);
if (rf->rf4)
rt2500pci_rf_write(rt2x00dev, 4 , rf->rf4);
/*
* Channel 14 requires the Japan filter bit to be set .
*/
r70 = 0 x46;
rt2x00_set_field8(&r70, BBP_R70_JAPAN_FILTER, rf->channel == 14 );
rt2500pci_bbp_write(rt2x00dev, 70 , r70);
msleep(1 );
/*
* Switch off tuning bits .
* For RT2523 devices we do not need to update the R1 register .
*/
if (!rt2x00_rf(rt2x00dev, RF2523)) {
rt2x00_set_field32(&rf->rf1, RF1_TUNER, 0 );
rt2500pci_rf_write(rt2x00dev, 1 , rf->rf1);
}
rt2x00_set_field32(&rf->rf3, RF3_TUNER, 0 );
rt2500pci_rf_write(rt2x00dev, 3 , rf->rf3);
/*
* Clear false CRC during channel switch .
*/
rf->rf1 = rt2x00mmio_register_read(rt2x00dev, CNT0);
}
static void rt2500pci_config_txpower(struct rt2x00_dev *rt2x00dev,
const int txpower)
{
u32 rf3;
rf3 = rt2x00_rf_read(rt2x00dev, 3 );
rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
rt2500pci_rf_write(rt2x00dev, 3 , rf3);
}
static void rt2500pci_config_retry_limit(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_conf *libconf)
{
u32 reg;
reg = rt2x00mmio_register_read(rt2x00dev, CSR11);
rt2x00_set_field32(®, CSR11_LONG_RETRY,
libconf->conf->long_frame_max_tx_count);
rt2x00_set_field32(®, CSR11_SHORT_RETRY,
libconf->conf->short_frame_max_tx_count);
rt2x00mmio_register_write(rt2x00dev, CSR11, reg);
}
static void rt2500pci_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 = rt2x00mmio_register_read(rt2x00dev, CSR20);
rt2x00_set_field32(®, CSR20_DELAY_AFTER_TBCN,
(rt2x00dev->beacon_int - 20 ) * 16 );
rt2x00_set_field32(®, CSR20_TBCN_BEFORE_WAKEUP,
libconf->conf->listen_interval - 1 );
/* We must first disable autowake before it can be enabled */
rt2x00_set_field32(®, CSR20_AUTOWAKE, 0 );
rt2x00mmio_register_write(rt2x00dev, CSR20, reg);
rt2x00_set_field32(®, CSR20_AUTOWAKE, 1 );
rt2x00mmio_register_write(rt2x00dev, CSR20, reg);
} else {
reg = rt2x00mmio_register_read(rt2x00dev, CSR20);
rt2x00_set_field32(®, CSR20_AUTOWAKE, 0 );
rt2x00mmio_register_write(rt2x00dev, CSR20, reg);
}
rt2x00dev->ops->lib->set_device_state(rt2x00dev, state);
}
static void rt2500pci_config(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_conf *libconf,
const unsigned int flags)
{
if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
rt2500pci_config_channel(rt2x00dev, &libconf->rf,
libconf->conf->power_level);
if ((flags & IEEE80211_CONF_CHANGE_POWER) &&
!(flags & IEEE80211_CONF_CHANGE_CHANNEL))
rt2500pci_config_txpower(rt2x00dev,
libconf->conf->power_level);
if (flags & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
rt2500pci_config_retry_limit(rt2x00dev, libconf);
if (flags & IEEE80211_CONF_CHANGE_PS)
rt2500pci_config_ps(rt2x00dev, libconf);
}
/*
* Link tuning
*/
static void rt2500pci_link_stats(struct rt2x00_dev *rt2x00dev,
struct link_qual *qual)
{
u32 reg;
/*
* Update FCS error count from register .
*/
reg = rt2x00mmio_register_read(rt2x00dev, CNT0);
qual->rx_failed = rt2x00_get_field32(reg, CNT0_FCS_ERROR);
/*
* Update False CCA count from register .
*/
reg = rt2x00mmio_register_read(rt2x00dev, CNT3);
qual->false_cca = rt2x00_get_field32(reg, CNT3_FALSE_CCA);
}
static inline void rt2500pci_set_vgc(struct rt2x00_dev *rt2x00dev,
struct link_qual *qual, u8 vgc_level)
{
if (qual->vgc_level_reg != vgc_level) {
rt2500pci_bbp_write(rt2x00dev, 17 , vgc_level);
qual->vgc_level = vgc_level;
qual->vgc_level_reg = vgc_level;
}
}
static void rt2500pci_reset_tuner(struct rt2x00_dev *rt2x00dev,
struct link_qual *qual)
{
rt2500pci_set_vgc(rt2x00dev, qual, 0 x48);
}
static void rt2500pci_link_tuner(struct rt2x00_dev *rt2x00dev,
struct link_qual *qual, const u32 count)
{
/*
* To prevent collisions with MAC ASIC on chipsets
* up to version C the link tuning should halt after 20
* seconds while being associated .
*/
if (rt2x00_rev(rt2x00dev) < RT2560_VERSION_D &&
rt2x00dev->intf_associated && count > 20 )
return ;
/*
* Chipset versions C and lower should directly continue
* to the dynamic CCA tuning . Chipset version D and higher
* should go straight to dynamic CCA tuning when they
* are not associated .
*/
if (rt2x00_rev(rt2x00dev) < RT2560_VERSION_D ||
!rt2x00dev->intf_associated)
goto dynamic_cca_tune;
/*
* A too low RSSI will cause too much false CCA which will
* then corrupt the R17 tuning . To remidy this the tuning should
* be stopped ( While making sure the R17 value will not exceed limits )
*/
if (qual->rssi < -80 && count > 20 ) {
if (qual->vgc_level_reg >= 0 x41)
rt2500pci_set_vgc(rt2x00dev, qual, qual->vgc_level);
return ;
}
/*
* Special big - R17 for short distance
*/
if (qual->rssi >= -58 ) {
rt2500pci_set_vgc(rt2x00dev, qual, 0 x50);
return ;
}
/*
* Special mid - R17 for middle distance
*/
if (qual->rssi >= -74 ) {
rt2500pci_set_vgc(rt2x00dev, qual, 0 x41);
return ;
}
/*
* Leave short or middle distance condition , restore r17
* to the dynamic tuning range .
*/
if (qual->vgc_level_reg >= 0 x41) {
rt2500pci_set_vgc(rt2x00dev, qual, qual->vgc_level);
return ;
}
dynamic_cca_tune:
/*
* R17 is inside the dynamic tuning range ,
* start tuning the link based on the false cca counter .
*/
if (qual->false_cca > 512 && qual->vgc_level_reg < 0 x40)
rt2500pci_set_vgc(rt2x00dev, qual, ++qual->vgc_level_reg);
else if (qual->false_cca < 100 && qual->vgc_level_reg > 0 x32)
rt2500pci_set_vgc(rt2x00dev, qual, --qual->vgc_level_reg);
}
/*
* Queue handlers .
*/
static void rt2500pci_start_queue(struct data_queue *queue)
{
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
u32 reg;
switch (queue->qid) {
case QID_RX:
reg = rt2x00mmio_register_read(rt2x00dev, RXCSR0);
rt2x00_set_field32(®, RXCSR0_DISABLE_RX, 0 );
rt2x00mmio_register_write(rt2x00dev, RXCSR0, reg);
break ;
case QID_BEACON:
reg = rt2x00mmio_register_read(rt2x00dev, CSR14);
rt2x00_set_field32(®, CSR14_TSF_COUNT, 1 );
rt2x00_set_field32(®, CSR14_TBCN, 1 );
rt2x00_set_field32(®, CSR14_BEACON_GEN, 1 );
rt2x00mmio_register_write(rt2x00dev, CSR14, reg);
break ;
default :
break ;
}
}
static void rt2500pci_kick_queue(struct data_queue *queue)
{
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
u32 reg;
switch (queue->qid) {
case QID_AC_VO:
reg = rt2x00mmio_register_read(rt2x00dev, TXCSR0);
rt2x00_set_field32(®, TXCSR0_KICK_PRIO, 1 );
rt2x00mmio_register_write(rt2x00dev, TXCSR0, reg);
break ;
case QID_AC_VI:
reg = rt2x00mmio_register_read(rt2x00dev, TXCSR0);
rt2x00_set_field32(®, TXCSR0_KICK_TX, 1 );
rt2x00mmio_register_write(rt2x00dev, TXCSR0, reg);
break ;
case QID_ATIM:
reg = rt2x00mmio_register_read(rt2x00dev, TXCSR0);
rt2x00_set_field32(®, TXCSR0_KICK_ATIM, 1 );
rt2x00mmio_register_write(rt2x00dev, TXCSR0, reg);
break ;
default :
break ;
}
}
static void rt2500pci_stop_queue(struct data_queue *queue)
{
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
u32 reg;
switch (queue->qid) {
case QID_AC_VO:
case QID_AC_VI:
case QID_ATIM:
reg = rt2x00mmio_register_read(rt2x00dev, TXCSR0);
rt2x00_set_field32(®, TXCSR0_ABORT, 1 );
rt2x00mmio_register_write(rt2x00dev, TXCSR0, reg);
break ;
case QID_RX:
reg = rt2x00mmio_register_read(rt2x00dev, RXCSR0);
rt2x00_set_field32(®, RXCSR0_DISABLE_RX, 1 );
rt2x00mmio_register_write(rt2x00dev, RXCSR0, reg);
break ;
case QID_BEACON:
reg = rt2x00mmio_register_read(rt2x00dev, CSR14);
rt2x00_set_field32(®, CSR14_TSF_COUNT, 0 );
rt2x00_set_field32(®, CSR14_TBCN, 0 );
rt2x00_set_field32(®, CSR14_BEACON_GEN, 0 );
rt2x00mmio_register_write(rt2x00dev, CSR14, reg);
/*
* Wait for possibly running tbtt tasklets .
*/
tasklet_kill(&rt2x00dev->tbtt_tasklet);
break ;
default :
break ;
}
}
/*
* Initialization functions .
*/
static bool rt2500pci_get_entry_state(struct queue_entry *entry)
{
struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
u32 word;
if (entry->queue->qid == QID_RX) {
word = rt2x00_desc_read(entry_priv->desc, 0 );
return rt2x00_get_field32(word, RXD_W0_OWNER_NIC);
} else {
word = rt2x00_desc_read(entry_priv->desc, 0 );
return (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
rt2x00_get_field32(word, TXD_W0_VALID));
}
}
static void rt2500pci_clear_entry(struct queue_entry *entry)
{
struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
u32 word;
if (entry->queue->qid == QID_RX) {
word = rt2x00_desc_read(entry_priv->desc, 1 );
rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
rt2x00_desc_write(entry_priv->desc, 1 , word);
word = rt2x00_desc_read(entry_priv->desc, 0 );
rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1 );
rt2x00_desc_write(entry_priv->desc, 0 , word);
} else {
word = rt2x00_desc_read(entry_priv->desc, 0 );
rt2x00_set_field32(&word, TXD_W0_VALID, 0 );
rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0 );
rt2x00_desc_write(entry_priv->desc, 0 , word);
}
}
static int rt2500pci_init_queues(struct rt2x00_dev *rt2x00dev)
{
struct queue_entry_priv_mmio *entry_priv;
u32 reg;
/*
* Initialize registers .
*/
reg = rt2x00mmio_register_read(rt2x00dev, TXCSR2);
rt2x00_set_field32(®, TXCSR2_TXD_SIZE, rt2x00dev->tx[0 ].desc_size);
rt2x00_set_field32(®, TXCSR2_NUM_TXD, rt2x00dev->tx[1 ].limit);
rt2x00_set_field32(®, TXCSR2_NUM_ATIM, rt2x00dev->atim->limit);
rt2x00_set_field32(®, TXCSR2_NUM_PRIO, rt2x00dev->tx[0 ].limit);
rt2x00mmio_register_write(rt2x00dev, TXCSR2, reg);
entry_priv = rt2x00dev->tx[1 ].entries[0 ].priv_data;
reg = rt2x00mmio_register_read(rt2x00dev, TXCSR3);
rt2x00_set_field32(®, TXCSR3_TX_RING_REGISTER,
entry_priv->desc_dma);
rt2x00mmio_register_write(rt2x00dev, TXCSR3, reg);
entry_priv = rt2x00dev->tx[0 ].entries[0 ].priv_data;
reg = rt2x00mmio_register_read(rt2x00dev, TXCSR5);
rt2x00_set_field32(®, TXCSR5_PRIO_RING_REGISTER,
entry_priv->desc_dma);
rt2x00mmio_register_write(rt2x00dev, TXCSR5, reg);
entry_priv = rt2x00dev->atim->entries[0 ].priv_data;
reg = rt2x00mmio_register_read(rt2x00dev, TXCSR4);
rt2x00_set_field32(®, TXCSR4_ATIM_RING_REGISTER,
entry_priv->desc_dma);
rt2x00mmio_register_write(rt2x00dev, TXCSR4, reg);
entry_priv = rt2x00dev->bcn->entries[0 ].priv_data;
reg = rt2x00mmio_register_read(rt2x00dev, TXCSR6);
rt2x00_set_field32(®, TXCSR6_BEACON_RING_REGISTER,
entry_priv->desc_dma);
rt2x00mmio_register_write(rt2x00dev, TXCSR6, reg);
reg = rt2x00mmio_register_read(rt2x00dev, RXCSR1);
rt2x00_set_field32(®, RXCSR1_RXD_SIZE, rt2x00dev->rx->desc_size);
rt2x00_set_field32(®, RXCSR1_NUM_RXD, rt2x00dev->rx->limit);
rt2x00mmio_register_write(rt2x00dev, RXCSR1, reg);
entry_priv = rt2x00dev->rx->entries[0 ].priv_data;
reg = rt2x00mmio_register_read(rt2x00dev, RXCSR2);
rt2x00_set_field32(®, RXCSR2_RX_RING_REGISTER,
entry_priv->desc_dma);
rt2x00mmio_register_write(rt2x00dev, RXCSR2, reg);
return 0 ;
}
static int rt2500pci_init_registers(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
rt2x00mmio_register_write(rt2x00dev, PSCSR0, 0 x00020002);
rt2x00mmio_register_write(rt2x00dev, PSCSR1, 0 x00000002);
rt2x00mmio_register_write(rt2x00dev, PSCSR2, 0 x00020002);
rt2x00mmio_register_write(rt2x00dev, PSCSR3, 0 x00000002);
reg = rt2x00mmio_register_read(rt2x00dev, TIMECSR);
rt2x00_set_field32(®, TIMECSR_US_COUNT, 33 );
rt2x00_set_field32(®, TIMECSR_US_64_COUNT, 63 );
rt2x00_set_field32(®, TIMECSR_BEACON_EXPECT, 0 );
rt2x00mmio_register_write(rt2x00dev, TIMECSR, reg);
reg = rt2x00mmio_register_read(rt2x00dev, CSR9);
rt2x00_set_field32(®, CSR9_MAX_FRAME_UNIT,
rt2x00dev->rx->data_size / 128 );
rt2x00mmio_register_write(rt2x00dev, CSR9, reg);
/*
* Always use CWmin and CWmax set in descriptor .
*/
reg = rt2x00mmio_register_read(rt2x00dev, CSR11);
rt2x00_set_field32(®, CSR11_CW_SELECT, 0 );
rt2x00mmio_register_write(rt2x00dev, CSR11, reg);
reg = rt2x00mmio_register_read(rt2x00dev, CSR14);
rt2x00_set_field32(®, CSR14_TSF_COUNT, 0 );
rt2x00_set_field32(®, CSR14_TSF_SYNC, 0 );
rt2x00_set_field32(®, CSR14_TBCN, 0 );
rt2x00_set_field32(®, CSR14_TCFP, 0 );
rt2x00_set_field32(®, CSR14_TATIMW, 0 );
rt2x00_set_field32(®, CSR14_BEACON_GEN, 0 );
rt2x00_set_field32(®, CSR14_CFP_COUNT_PRELOAD, 0 );
rt2x00_set_field32(®, CSR14_TBCM_PRELOAD, 0 );
rt2x00mmio_register_write(rt2x00dev, CSR14, reg);
rt2x00mmio_register_write(rt2x00dev, CNT3, 0 );
reg = rt2x00mmio_register_read(rt2x00dev, TXCSR8);
rt2x00_set_field32(®, TXCSR8_BBP_ID0, 10 );
rt2x00_set_field32(®, TXCSR8_BBP_ID0_VALID, 1 );
rt2x00_set_field32(®, TXCSR8_BBP_ID1, 11 );
rt2x00_set_field32(®, TXCSR8_BBP_ID1_VALID, 1 );
rt2x00_set_field32(®, TXCSR8_BBP_ID2, 13 );
rt2x00_set_field32(®, TXCSR8_BBP_ID2_VALID, 1 );
rt2x00_set_field32(®, TXCSR8_BBP_ID3, 12 );
rt2x00_set_field32(®, TXCSR8_BBP_ID3_VALID, 1 );
rt2x00mmio_register_write(rt2x00dev, TXCSR8, reg);
reg = rt2x00mmio_register_read(rt2x00dev, ARTCSR0);
rt2x00_set_field32(®, ARTCSR0_ACK_CTS_1MBS, 112 );
rt2x00_set_field32(®, ARTCSR0_ACK_CTS_2MBS, 56 );
rt2x00_set_field32(®, ARTCSR0_ACK_CTS_5_5MBS, 20 );
rt2x00_set_field32(®, ARTCSR0_ACK_CTS_11MBS, 10 );
rt2x00mmio_register_write(rt2x00dev, ARTCSR0, reg);
reg = rt2x00mmio_register_read(rt2x00dev, ARTCSR1);
rt2x00_set_field32(®, ARTCSR1_ACK_CTS_6MBS, 45 );
rt2x00_set_field32(®, ARTCSR1_ACK_CTS_9MBS, 37 );
rt2x00_set_field32(®, ARTCSR1_ACK_CTS_12MBS, 33 );
rt2x00_set_field32(®, ARTCSR1_ACK_CTS_18MBS, 29 );
rt2x00mmio_register_write(rt2x00dev, ARTCSR1, reg);
reg = rt2x00mmio_register_read(rt2x00dev, ARTCSR2);
rt2x00_set_field32(®, ARTCSR2_ACK_CTS_24MBS, 29 );
rt2x00_set_field32(®, ARTCSR2_ACK_CTS_36MBS, 25 );
rt2x00_set_field32(®, ARTCSR2_ACK_CTS_48MBS, 25 );
rt2x00_set_field32(®, ARTCSR2_ACK_CTS_54MBS, 25 );
rt2x00mmio_register_write(rt2x00dev, ARTCSR2, reg);
reg = rt2x00mmio_register_read(rt2x00dev, RXCSR3);
rt2x00_set_field32(®, RXCSR3_BBP_ID0, 47 ); /* CCK Signal */
rt2x00_set_field32(®, RXCSR3_BBP_ID0_VALID, 1 );
rt2x00_set_field32(®, RXCSR3_BBP_ID1, 51 ); /* Rssi */
rt2x00_set_field32(®, RXCSR3_BBP_ID1_VALID, 1 );
rt2x00_set_field32(®, RXCSR3_BBP_ID2, 42 ); /* OFDM Rate */
rt2x00_set_field32(®, RXCSR3_BBP_ID2_VALID, 1 );
rt2x00_set_field32(®, RXCSR3_BBP_ID3, 51 ); /* RSSI */
rt2x00_set_field32(®, RXCSR3_BBP_ID3_VALID, 1 );
rt2x00mmio_register_write(rt2x00dev, RXCSR3, reg);
reg = rt2x00mmio_register_read(rt2x00dev, PCICSR);
rt2x00_set_field32(®, PCICSR_BIG_ENDIAN, 0 );
rt2x00_set_field32(®, PCICSR_RX_TRESHOLD, 0 );
rt2x00_set_field32(®, PCICSR_TX_TRESHOLD, 3 );
rt2x00_set_field32(®, PCICSR_BURST_LENTH, 1 );
rt2x00_set_field32(®, PCICSR_ENABLE_CLK, 1 );
rt2x00_set_field32(®, PCICSR_READ_MULTIPLE, 1 );
rt2x00_set_field32(®, PCICSR_WRITE_INVALID, 1 );
rt2x00mmio_register_write(rt2x00dev, PCICSR, reg);
rt2x00mmio_register_write(rt2x00dev, PWRCSR0, 0 x3f3b3100);
rt2x00mmio_register_write(rt2x00dev, GPIOCSR, 0 x0000ff00);
rt2x00mmio_register_write(rt2x00dev, TESTCSR, 0 x000000f0);
if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
return -EBUSY;
rt2x00mmio_register_write(rt2x00dev, MACCSR0, 0 x00213223);
rt2x00mmio_register_write(rt2x00dev, MACCSR1, 0 x00235518);
reg = rt2x00mmio_register_read(rt2x00dev, MACCSR2);
rt2x00_set_field32(®, MACCSR2_DELAY, 64 );
rt2x00mmio_register_write(rt2x00dev, MACCSR2, reg);
reg = rt2x00mmio_register_read(rt2x00dev, RALINKCSR);
rt2x00_set_field32(®, RALINKCSR_AR_BBP_DATA0, 17 );
rt2x00_set_field32(®, RALINKCSR_AR_BBP_ID0, 26 );
rt2x00_set_field32(®, RALINKCSR_AR_BBP_VALID0, 1 );
rt2x00_set_field32(®, RALINKCSR_AR_BBP_DATA1, 0 );
rt2x00_set_field32(®, RALINKCSR_AR_BBP_ID1, 26 );
rt2x00_set_field32(®, RALINKCSR_AR_BBP_VALID1, 1 );
rt2x00mmio_register_write(rt2x00dev, RALINKCSR, reg);
rt2x00mmio_register_write(rt2x00dev, BBPCSR1, 0 x82188200);
rt2x00mmio_register_write(rt2x00dev, TXACKCSR0, 0 x00000020);
reg = rt2x00mmio_register_read(rt2x00dev, CSR1);
rt2x00_set_field32(®, CSR1_SOFT_RESET, 1 );
rt2x00_set_field32(®, CSR1_BBP_RESET, 0 );
rt2x00_set_field32(®, CSR1_HOST_READY, 0 );
rt2x00mmio_register_write(rt2x00dev, CSR1, reg);
reg = rt2x00mmio_register_read(rt2x00dev, CSR1);
rt2x00_set_field32(®, CSR1_SOFT_RESET, 0 );
rt2x00_set_field32(®, CSR1_HOST_READY, 1 );
rt2x00mmio_register_write(rt2x00dev, CSR1, reg);
/*
* We must clear the FCS and FIFO error count .
* These registers are cleared on read ,
* so we may pass a useless variable to store the value .
*/
reg = rt2x00mmio_register_read(rt2x00dev, CNT0);
reg = rt2x00mmio_register_read(rt2x00dev, CNT4);
return 0 ;
}
static int rt2500pci_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
{
unsigned int i;
u8 value;
for (i = 0 ; i < REGISTER_BUSY_COUNT; i++) {
value = rt2500pci_bbp_read(rt2x00dev, 0 );
if ((value != 0 xff) && (value != 0 x00))
return 0 ;
udelay(REGISTER_BUSY_DELAY);
}
rt2x00_err(rt2x00dev, "BBP register access failed, aborting\n" );
return -EACCES;
}
static int rt2500pci_init_bbp(struct rt2x00_dev *rt2x00dev)
{
unsigned int i;
u16 eeprom;
u8 reg_id;
u8 value;
if (unlikely(rt2500pci_wait_bbp_ready(rt2x00dev)))
return -EACCES;
rt2500pci_bbp_write(rt2x00dev, 3 , 0 x02);
rt2500pci_bbp_write(rt2x00dev, 4 , 0 x19);
rt2500pci_bbp_write(rt2x00dev, 14 , 0 x1c);
rt2500pci_bbp_write(rt2x00dev, 15 , 0 x30);
rt2500pci_bbp_write(rt2x00dev, 16 , 0 xac);
rt2500pci_bbp_write(rt2x00dev, 18 , 0 x18);
rt2500pci_bbp_write(rt2x00dev, 19 , 0 xff);
rt2500pci_bbp_write(rt2x00dev, 20 , 0 x1e);
rt2500pci_bbp_write(rt2x00dev, 21 , 0 x08);
rt2500pci_bbp_write(rt2x00dev, 22 , 0 x08);
rt2500pci_bbp_write(rt2x00dev, 23 , 0 x08);
rt2500pci_bbp_write(rt2x00dev, 24 , 0 x70);
rt2500pci_bbp_write(rt2x00dev, 25 , 0 x40);
rt2500pci_bbp_write(rt2x00dev, 26 , 0 x08);
rt2500pci_bbp_write(rt2x00dev, 27 , 0 x23);
rt2500pci_bbp_write(rt2x00dev, 30 , 0 x10);
rt2500pci_bbp_write(rt2x00dev, 31 , 0 x2b);
rt2500pci_bbp_write(rt2x00dev, 32 , 0 xb9);
rt2500pci_bbp_write(rt2x00dev, 34 , 0 x12);
rt2500pci_bbp_write(rt2x00dev, 35 , 0 x50);
rt2500pci_bbp_write(rt2x00dev, 39 , 0 xc4);
rt2500pci_bbp_write(rt2x00dev, 40 , 0 x02);
rt2500pci_bbp_write(rt2x00dev, 41 , 0 x60);
rt2500pci_bbp_write(rt2x00dev, 53 , 0 x10);
rt2500pci_bbp_write(rt2x00dev, 54 , 0 x18);
rt2500pci_bbp_write(rt2x00dev, 56 , 0 x08);
rt2500pci_bbp_write(rt2x00dev, 57 , 0 x10);
rt2500pci_bbp_write(rt2x00dev, 58 , 0 x08);
rt2500pci_bbp_write(rt2x00dev, 61 , 0 x6d);
rt2500pci_bbp_write(rt2x00dev, 62 , 0 x10);
for (i = 0 ; i < EEPROM_BBP_SIZE; i++) {
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i);
if (eeprom != 0 xffff && eeprom != 0 x0000) {
reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
rt2500pci_bbp_write(rt2x00dev, reg_id, value);
}
}
return 0 ;
}
/*
* Device state switch handlers .
*/
static void rt2500pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
int mask = (state == STATE_RADIO_IRQ_OFF);
u32 reg;
unsigned long flags;
/*
* When interrupts are being enabled , the interrupt registers
* should clear the register to assure a clean state .
*/
if (state == STATE_RADIO_IRQ_ON) {
reg = rt2x00mmio_register_read(rt2x00dev, CSR7);
rt2x00mmio_register_write(rt2x00dev, CSR7, reg);
}
/*
* Only toggle the interrupts bits we are going to use .
* Non - checked interrupt bits are disabled by default .
*/
spin_lock_irqsave(&rt2x00dev->irqmask_lock, flags);
reg = rt2x00mmio_register_read(rt2x00dev, CSR8);
rt2x00_set_field32(®, CSR8_TBCN_EXPIRE, mask);
rt2x00_set_field32(®, CSR8_TXDONE_TXRING, mask);
rt2x00_set_field32(®, CSR8_TXDONE_ATIMRING, mask);
rt2x00_set_field32(®, CSR8_TXDONE_PRIORING, mask);
rt2x00_set_field32(®, CSR8_RXDONE, mask);
rt2x00mmio_register_write(rt2x00dev, CSR8, reg);
spin_unlock_irqrestore(&rt2x00dev->irqmask_lock, flags);
if (state == STATE_RADIO_IRQ_OFF) {
/*
* Ensure that all tasklets are finished .
*/
tasklet_kill(&rt2x00dev->txstatus_tasklet);
tasklet_kill(&rt2x00dev->rxdone_tasklet);
tasklet_kill(&rt2x00dev->tbtt_tasklet);
}
}
static int rt2500pci_enable_radio(struct rt2x00_dev *rt2x00dev)
{
/*
* Initialize all registers .
*/
if (unlikely(rt2500pci_init_queues(rt2x00dev) ||
rt2500pci_init_registers(rt2x00dev) ||
rt2500pci_init_bbp(rt2x00dev)))
return -EIO;
return 0 ;
}
static void rt2500pci_disable_radio(struct rt2x00_dev *rt2x00dev)
{
/*
* Disable power
*/
rt2x00mmio_register_write(rt2x00dev, PWRCSR0, 0 );
}
static int rt2500pci_set_state(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
u32 reg, reg2;
unsigned int i;
bool put_to_sleep;
u8 bbp_state;
u8 rf_state;
put_to_sleep = (state != STATE_AWAKE);
reg = rt2x00mmio_register_read(rt2x00dev, PWRCSR1);
rt2x00_set_field32(®, PWRCSR1_SET_STATE, 1 );
rt2x00_set_field32(®, PWRCSR1_BBP_DESIRE_STATE, state);
rt2x00_set_field32(®, PWRCSR1_RF_DESIRE_STATE, state);
rt2x00_set_field32(®, PWRCSR1_PUT_TO_SLEEP, put_to_sleep);
rt2x00mmio_register_write(rt2x00dev, PWRCSR1, reg);
/*
* Device is not guaranteed to be in the requested state yet .
* We must wait until the register indicates that the
* device has entered the correct state .
*/
for (i = 0 ; i < REGISTER_BUSY_COUNT; i++) {
reg2 = rt2x00mmio_register_read(rt2x00dev, PWRCSR1);
bbp_state = rt2x00_get_field32(reg2, PWRCSR1_BBP_CURR_STATE);
rf_state = rt2x00_get_field32(reg2, PWRCSR1_RF_CURR_STATE);
if (bbp_state == state && rf_state == state)
return 0 ;
rt2x00mmio_register_write(rt2x00dev, PWRCSR1, reg);
msleep(10 );
}
return -EBUSY;
}
static int rt2500pci_set_device_state(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
int retval = 0 ;
switch (state) {
case STATE_RADIO_ON:
retval = rt2500pci_enable_radio(rt2x00dev);
break ;
case STATE_RADIO_OFF:
rt2500pci_disable_radio(rt2x00dev);
break ;
case STATE_RADIO_IRQ_ON:
case STATE_RADIO_IRQ_OFF:
rt2500pci_toggle_irq(rt2x00dev, state);
break ;
case STATE_DEEP_SLEEP:
case STATE_SLEEP:
case STATE_STANDBY:
case STATE_AWAKE:
retval = rt2500pci_set_state(rt2x00dev, state);
break ;
default :
retval = -ENOTSUPP;
break ;
}
if (unlikely(retval))
rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n" ,
state, retval);
return retval;
}
/*
* TX descriptor initialization
*/
static void rt2500pci_write_tx_desc(struct queue_entry *entry,
struct txentry_desc *txdesc)
{
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
__le32 *txd = entry_priv->desc;
u32 word;
/*
* Start writing the descriptor words .
*/
word = rt2x00_desc_read(txd, 1 );
rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
rt2x00_desc_write(txd, 1 , word);
word = rt2x00_desc_read(txd, 2 );
rt2x00_set_field32(&word, TXD_W2_IV_OFFSET, IEEE80211_HEADER);
rt2x00_set_field32(&word, TXD_W2_AIFS, entry->queue->aifs);
rt2x00_set_field32(&word, TXD_W2_CWMIN, entry->queue->cw_min);
rt2x00_set_field32(&word, TXD_W2_CWMAX, entry->queue->cw_max);
rt2x00_desc_write(txd, 2 , word);
word = rt2x00_desc_read(txd, 3 );
rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, txdesc->u.plcp.signal);
rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, txdesc->u.plcp.service);
rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW,
txdesc->u.plcp.length_low);
rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH,
txdesc->u.plcp.length_high);
rt2x00_desc_write(txd, 3 , word);
word = rt2x00_desc_read(txd, 10 );
rt2x00_set_field32(&word, TXD_W10_RTS,
test_bit(ENTRY_TXD_RTS_FRAME, &txdesc->flags));
rt2x00_desc_write(txd, 10 , word);
/*
* Writing TXD word 0 must the last to prevent a race condition with
* the device , whereby the device may take hold of the TXD before we
* finished updating it .
*/
word = rt2x00_desc_read(txd, 0 );
rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1 );
rt2x00_set_field32(&word, TXD_W0_VALID, 1 );
rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
test_bit(ENTRY_TXD_MORE_FRAG, &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_CIPHER_OWNER, 1 );
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_DATABYTE_COUNT, txdesc->length);
rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE);
rt2x00_desc_write(txd, 0 , word);
/*
* Register descriptor details in skb frame descriptor .
*/
skbdesc->desc = txd;
skbdesc->desc_len = TXD_DESC_SIZE;
}
/*
* TX data initialization
*/
static void rt2500pci_write_beacon(struct queue_entry *entry,
struct txentry_desc *txdesc)
{
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
u32 reg;
/*
* Disable beaconing while we are reloading the beacon data ,
* otherwise we might be sending out invalid data .
*/
reg = rt2x00mmio_register_read(rt2x00dev, CSR14);
rt2x00_set_field32(®, CSR14_BEACON_GEN, 0 );
rt2x00mmio_register_write(rt2x00dev, CSR14, reg);
if (rt2x00queue_map_txskb(entry)) {
rt2x00_err(rt2x00dev, "Fail to map beacon, aborting\n" );
goto out;
}
/*
* Write the TX descriptor for the beacon .
*/
rt2500pci_write_tx_desc(entry, txdesc);
/*
* Dump beacon to userspace through debugfs .
*/
rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry);
out:
/*
* Enable beaconing again .
*/
rt2x00_set_field32(®, CSR14_BEACON_GEN, 1 );
rt2x00mmio_register_write(rt2x00dev, CSR14, reg);
}
/*
* RX control handlers
*/
static void rt2500pci_fill_rxdone(struct queue_entry *entry,
struct rxdone_entry_desc *rxdesc)
{
struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
u32 word0;
u32 word2;
word0 = rt2x00_desc_read(entry_priv->desc, 0 );
word2 = rt2x00_desc_read(entry_priv->desc, 2 );
if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
/*
* 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 100 kbit / s .
*/
rxdesc->signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL);
rxdesc->rssi = rt2x00_get_field32(word2, RXD_W2_RSSI) -
entry->queue->rt2x00dev->rssi_offset;
rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
if (rt2x00_get_field32(word0, RXD_W0_OFDM))
rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
else
rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
rxdesc->dev_flags |= RXDONE_MY_BSS;
}
/*
* Interrupt functions .
*/
static void rt2500pci_txdone(struct rt2x00_dev *rt2x00dev,
const enum data_queue_qid queue_idx)
{
struct data_queue *queue = rt2x00queue_get_tx_queue(rt2x00dev, queue_idx);
struct queue_entry_priv_mmio *entry_priv;
struct queue_entry *entry;
struct txdone_entry_desc txdesc;
u32 word;
while (!rt2x00queue_empty(queue)) {
entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
entry_priv = entry->priv_data;
word = rt2x00_desc_read(entry_priv->desc, 0 );
if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
!rt2x00_get_field32(word, TXD_W0_VALID))
break ;
/*
* Obtain the status about this packet .
*/
txdesc.flags = 0 ;
switch (rt2x00_get_field32(word, TXD_W0_RESULT)) {
case 0 : /* Success */
case 1 : /* Success with retry */
__set_bit(TXDONE_SUCCESS, &txdesc.flags);
break ;
case 2 : /* Failure, excessive retries */
__set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
fallthrough; /* this is a failed frame! */
default : /* Failure */
__set_bit(TXDONE_FAILURE, &txdesc.flags);
}
txdesc.retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT);
rt2x00lib_txdone(entry, &txdesc);
}
}
static inline void rt2500pci_enable_interrupt(struct rt2x00_dev *rt2x00dev,
struct rt2x00_field32 irq_field)
{
u32 reg;
/*
* Enable a single interrupt . The interrupt mask register
* access needs locking .
*/
spin_lock_irq(&rt2x00dev->irqmask_lock);
reg = rt2x00mmio_register_read(rt2x00dev, CSR8);
rt2x00_set_field32(®, irq_field, 0 );
rt2x00mmio_register_write(rt2x00dev, CSR8, reg);
spin_unlock_irq(&rt2x00dev->irqmask_lock);
}
static void rt2500pci_txstatus_tasklet(struct tasklet_struct *t)
{
struct rt2x00_dev *rt2x00dev = from_tasklet(rt2x00dev, t,
txstatus_tasklet);
u32 reg;
/*
* Handle all tx queues .
*/
rt2500pci_txdone(rt2x00dev, QID_ATIM);
rt2500pci_txdone(rt2x00dev, QID_AC_VO);
rt2500pci_txdone(rt2x00dev, QID_AC_VI);
/*
* Enable all TXDONE interrupts again .
*/
if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) {
spin_lock_irq(&rt2x00dev->irqmask_lock);
reg = rt2x00mmio_register_read(rt2x00dev, CSR8);
rt2x00_set_field32(®, CSR8_TXDONE_TXRING, 0 );
rt2x00_set_field32(®, CSR8_TXDONE_ATIMRING, 0 );
rt2x00_set_field32(®, CSR8_TXDONE_PRIORING, 0 );
rt2x00mmio_register_write(rt2x00dev, CSR8, reg);
spin_unlock_irq(&rt2x00dev->irqmask_lock);
}
}
static void rt2500pci_tbtt_tasklet(struct tasklet_struct *t)
{
struct rt2x00_dev *rt2x00dev = from_tasklet(rt2x00dev, t, tbtt_tasklet);
rt2x00lib_beacondone(rt2x00dev);
if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
rt2500pci_enable_interrupt(rt2x00dev, CSR8_TBCN_EXPIRE);
}
static void rt2500pci_rxdone_tasklet(struct tasklet_struct *t)
{
struct rt2x00_dev *rt2x00dev = from_tasklet(rt2x00dev, t,
rxdone_tasklet);
if (rt2x00mmio_rxdone(rt2x00dev))
tasklet_schedule(&rt2x00dev->rxdone_tasklet);
else if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
rt2500pci_enable_interrupt(rt2x00dev, CSR8_RXDONE);
}
static irqreturn_t rt2500pci_interrupt(int irq, void *dev_instance)
{
struct rt2x00_dev *rt2x00dev = dev_instance;
u32 reg, mask;
/*
* Get the interrupt sources & saved to local variable .
* Write register value back to clear pending interrupts .
*/
reg = rt2x00mmio_register_read(rt2x00dev, CSR7);
rt2x00mmio_register_write(rt2x00dev, CSR7, reg);
if (!reg)
return IRQ_NONE;
if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
return IRQ_HANDLED;
mask = reg;
/*
* Schedule tasklets for interrupt handling .
*/
if (rt2x00_get_field32(reg, CSR7_TBCN_EXPIRE))
tasklet_hi_schedule(&rt2x00dev->tbtt_tasklet);
if (rt2x00_get_field32(reg, CSR7_RXDONE))
tasklet_schedule(&rt2x00dev->rxdone_tasklet);
if (rt2x00_get_field32(reg, CSR7_TXDONE_ATIMRING) ||
rt2x00_get_field32(reg, CSR7_TXDONE_PRIORING) ||
rt2x00_get_field32(reg, CSR7_TXDONE_TXRING)) {
tasklet_schedule(&rt2x00dev->txstatus_tasklet);
/*
* Mask out all txdone interrupts .
*/
rt2x00_set_field32(&mask, CSR8_TXDONE_TXRING, 1 );
rt2x00_set_field32(&mask, CSR8_TXDONE_ATIMRING, 1 );
rt2x00_set_field32(&mask, CSR8_TXDONE_PRIORING, 1 );
}
/*
* Disable all interrupts for which a tasklet was scheduled right now ,
* the tasklet will reenable the appropriate interrupts .
*/
spin_lock(&rt2x00dev->irqmask_lock);
reg = rt2x00mmio_register_read(rt2x00dev, CSR8);
reg |= mask;
rt2x00mmio_register_write(rt2x00dev, CSR8, reg);
spin_unlock(&rt2x00dev->irqmask_lock);
return IRQ_HANDLED;
}
/*
* Device probe functions .
*/
static int rt2500pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
{
struct eeprom_93cx6 eeprom;
u32 reg;
u16 word;
u8 *mac;
reg = rt2x00mmio_register_read(rt2x00dev, CSR21);
eeprom.data = rt2x00dev;
eeprom.register_read = rt2500pci_eepromregister_read;
eeprom.register_write = rt2500pci_eepromregister_write;
eeprom.width = rt2x00_get_field32(reg, CSR21_TYPE_93C46) ?
PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
eeprom.reg_data_in = 0 ;
eeprom.reg_data_out = 0 ;
eeprom.reg_data_clock = 0 ;
eeprom.reg_chip_select = 0 ;
eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
EEPROM_SIZE / sizeof (u16));
/*
* Start validation of the data that has been read .
*/
mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
rt2x00lib_set_mac_address(rt2x00dev, mac);
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA);
if (word == 0 xffff) {
rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2 );
rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
ANTENNA_SW_DIVERSITY);
rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
ANTENNA_SW_DIVERSITY);
rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
LED_MODE_DEFAULT);
rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0 );
rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0 );
rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
rt2x00_eeprom_dbg(rt2x00dev, "Antenna: 0x%04x\n" , word);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC);
if (word == 0 xffff) {
rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0 );
rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0 );
rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0 );
rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
rt2x00_eeprom_dbg(rt2x00dev, "NIC: 0x%04x\n" , word);
}
word = rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET);
if (word == 0 xffff) {
rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
DEFAULT_RSSI_OFFSET);
rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
rt2x00_eeprom_dbg(rt2x00dev, "Calibrate offset: 0x%04x\n" ,
word);
}
return 0 ;
}
static int rt2500pci_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 = rt2x00mmio_register_read(rt2x00dev, CSR0);
rt2x00_set_chip(rt2x00dev, RT2560, value,
rt2x00_get_field32(reg, CSR0_REVISION));
if (!rt2x00_rf(rt2x00dev, RF2522) &&
!rt2x00_rf(rt2x00dev, RF2523) &&
!rt2x00_rf(rt2x00dev, RF2524) &&
!rt2x00_rf(rt2x00dev, RF2525) &&
!rt2x00_rf(rt2x00dev, RF2525E) &&
!rt2x00_rf(rt2x00dev, RF5222)) {
rt2x00_err(rt2x00dev, "Invalid RF chipset detected\n" );
return -ENODEV;
}
/*
* Identify default antenna configuration .
*/
rt2x00dev->default_ant.tx =
rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
rt2x00dev->default_ant.rx =
rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
/*
* Store led mode , for correct led behaviour .
*/
#ifdef CONFIG_RT2X00_LIB_LEDS
value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
rt2500pci_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
if (value == LED_MODE_TXRX_ACTIVITY ||
value == LED_MODE_DEFAULT ||
value == LED_MODE_ASUS)
rt2500pci_init_led(rt2x00dev, &rt2x00dev->led_qual,
LED_TYPE_ACTIVITY);
#endif /* CONFIG_RT2X00_LIB_LEDS */
/*
* Detect if this device has an hardware controlled radio .
*/
if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO)) {
__set_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags);
/*
* On this device RFKILL initialized during probe does not work .
*/
__set_bit(REQUIRE_DELAYED_RFKILL, &rt2x00dev->cap_flags);
}
/*
* Check if the BBP tuning should be enabled .
*/
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC);
if (!rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
__set_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags);
/*
* Read the RSSI < - > dBm offset information .
*/
eeprom = rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET);
rt2x00dev->rssi_offset =
rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
return 0 ;
}
/*
* RF value list for RF2522
* Supports : 2 . 4 GHz
*/
static const struct rf_channel rf_vals_bg_2522[] = {
{ 1 , 0 x00002050, 0 x000c1fda, 0 x00000101, 0 },
{ 2 , 0 x00002050, 0 x000c1fee, 0 x00000101, 0 },
{ 3 , 0 x00002050, 0 x000c2002, 0 x00000101, 0 },
{ 4 , 0 x00002050, 0 x000c2016, 0 x00000101, 0 },
{ 5 , 0 x00002050, 0 x000c202a, 0 x00000101, 0 },
{ 6 , 0 x00002050, 0 x000c203e, 0 x00000101, 0 },
{ 7 , 0 x00002050, 0 x000c2052, 0 x00000101, 0 },
{ 8 , 0 x00002050, 0 x000c2066, 0 x00000101, 0 },
{ 9 , 0 x00002050, 0 x000c207a, 0 x00000101, 0 },
{ 10 , 0 x00002050, 0 x000c208e, 0 x00000101, 0 },
{ 11 , 0 x00002050, 0 x000c20a2, 0 x00000101, 0 },
{ 12 , 0 x00002050, 0 x000c20b6, 0 x00000101, 0 },
{ 13 , 0 x00002050, 0 x000c20ca, 0 x00000101, 0 },
{ 14 , 0 x00002050, 0 x000c20fa, 0 x00000101, 0 },
};
/*
* RF value list for RF2523
* Supports : 2 . 4 GHz
*/
static const struct rf_channel rf_vals_bg_2523[] = {
{ 1 , 0 x00022010, 0 x00000c9e, 0 x000e0111, 0 x00000a1b },
{ 2 , 0 x00022010, 0 x00000ca2, 0 x000e0111, 0 x00000a1b },
{ 3 , 0 x00022010, 0 x00000ca6, 0 x000e0111, 0 x00000a1b },
{ 4 , 0 x00022010, 0 x00000caa, 0 x000e0111, 0 x00000a1b },
{ 5 , 0 x00022010, 0 x00000cae, 0 x000e0111, 0 x00000a1b },
{ 6 , 0 x00022010, 0 x00000cb2, 0 x000e0111, 0 x00000a1b },
{ 7 , 0 x00022010, 0 x00000cb6, 0 x000e0111, 0 x00000a1b },
{ 8 , 0 x00022010, 0 x00000cba, 0 x000e0111, 0 x00000a1b },
{ 9 , 0 x00022010, 0 x00000cbe, 0 x000e0111, 0 x00000a1b },
{ 10 , 0 x00022010, 0 x00000d02, 0 x000e0111, 0 x00000a1b },
{ 11 , 0 x00022010, 0 x00000d06, 0 x000e0111, 0 x00000a1b },
{ 12 , 0 x00022010, 0 x00000d0a, 0 x000e0111, 0 x00000a1b },
{ 13 , 0 x00022010, 0 x00000d0e, 0 x000e0111, 0 x00000a1b },
{ 14 , 0 x00022010, 0 x00000d1a, 0 x000e0111, 0 x00000a03 },
};
/*
* RF value list for RF2524
* Supports : 2 . 4 GHz
*/
static const struct rf_channel rf_vals_bg_2524[] = {
{ 1 , 0 x00032020, 0 x00000c9e, 0 x00000101, 0 x00000a1b },
{ 2 , 0 x00032020, 0 x00000ca2, 0 x00000101, 0 x00000a1b },
{ 3 , 0 x00032020, 0 x00000ca6, 0 x00000101, 0 x00000a1b },
{ 4 , 0 x00032020, 0 x00000caa, 0 x00000101, 0 x00000a1b },
{ 5 , 0 x00032020, 0 x00000cae, 0 x00000101, 0 x00000a1b },
{ 6 , 0 x00032020, 0 x00000cb2, 0 x00000101, 0 x00000a1b },
{ 7 , 0 x00032020, 0 x00000cb6, 0 x00000101, 0 x00000a1b },
{ 8 , 0 x00032020, 0 x00000cba, 0 x00000101, 0 x00000a1b },
{ 9 , 0 x00032020, 0 x00000cbe, 0 x00000101, 0 x00000a1b },
{ 10 , 0 x00032020, 0 x00000d02, 0 x00000101, 0 x00000a1b },
{ 11 , 0 x00032020, 0 x00000d06, 0 x00000101, 0 x00000a1b },
{ 12 , 0 x00032020, 0 x00000d0a, 0 x00000101, 0 x00000a1b },
{ 13 , 0 x00032020, 0 x00000d0e, 0 x00000101, 0 x00000a1b },
{ 14 , 0 x00032020, 0 x00000d1a, 0 x00000101, 0 x00000a03 },
};
/*
* RF value list for RF2525
* Supports : 2 . 4 GHz
*/
static const struct rf_channel rf_vals_bg_2525[] = {
{ 1 , 0 x00022020, 0 x00080c9e, 0 x00060111, 0 x00000a1b },
{ 2 , 0 x00022020, 0 x00080ca2, 0 x00060111, 0 x00000a1b },
{ 3 , 0 x00022020, 0 x00080ca6, 0 x00060111, 0 x00000a1b },
{ 4 , 0 x00022020, 0 x00080caa, 0 x00060111, 0 x00000a1b },
{ 5 , 0 x00022020, 0 x00080cae, 0 x00060111, 0 x00000a1b },
{ 6 , 0 x00022020, 0 x00080cb2, 0 x00060111, 0 x00000a1b },
{ 7 , 0 x00022020, 0 x00080cb6, 0 x00060111, 0 x00000a1b },
{ 8 , 0 x00022020, 0 x00080cba, 0 x00060111, 0 x00000a1b },
{ 9 , 0 x00022020, 0 x00080cbe, 0 x00060111, 0 x00000a1b },
{ 10 , 0 x00022020, 0 x00080d02, 0 x00060111, 0 x00000a1b },
{ 11 , 0 x00022020, 0 x00080d06, 0 x00060111, 0 x00000a1b },
{ 12 , 0 x00022020, 0 x00080d0a, 0 x00060111, 0 x00000a1b },
{ 13 , 0 x00022020, 0 x00080d0e, 0 x00060111, 0 x00000a1b },
{ 14 , 0 x00022020, 0 x00080d1a, 0 x00060111, 0 x00000a03 },
};
/*
* RF value list for RF2525e
* Supports : 2 . 4 GHz
*/
static const struct rf_channel rf_vals_bg_2525e[] = {
{ 1 , 0 x00022020, 0 x00081136, 0 x00060111, 0 x00000a0b },
{ 2 , 0 x00022020, 0 x0008113a, 0 x00060111, 0 x00000a0b },
{ 3 , 0 x00022020, 0 x0008113e, 0 x00060111, 0 x00000a0b },
{ 4 , 0 x00022020, 0 x00081182, 0 x00060111, 0 x00000a0b },
{ 5 , 0 x00022020, 0 x00081186, 0 x00060111, 0 x00000a0b },
{ 6 , 0 x00022020, 0 x0008118a, 0 x00060111, 0 x00000a0b },
{ 7 , 0 x00022020, 0 x0008118e, 0 x00060111, 0 x00000a0b },
{ 8 , 0 x00022020, 0 x00081192, 0 x00060111, 0 x00000a0b },
{ 9 , 0 x00022020, 0 x00081196, 0 x00060111, 0 x00000a0b },
{ 10 , 0 x00022020, 0 x0008119a, 0 x00060111, 0 x00000a0b },
{ 11 , 0 x00022020, 0 x0008119e, 0 x00060111, 0 x00000a0b },
{ 12 , 0 x00022020, 0 x000811a2, 0 x00060111, 0 x00000a0b },
{ 13 , 0 x00022020, 0 x000811a6, 0 x00060111, 0 x00000a0b },
{ 14 , 0 x00022020, 0 x000811ae, 0 x00060111, 0 x00000a1b },
};
/*
* RF value list for RF5222
* Supports : 2 . 4 GHz & 5 . 2 GHz
*/
static const struct rf_channel rf_vals_5222[] = {
{ 1 , 0 x00022020, 0 x00001136, 0 x00000101, 0 x00000a0b },
{ 2 , 0 x00022020, 0 x0000113a, 0 x00000101, 0 x00000a0b },
{ 3 , 0 x00022020, 0 x0000113e, 0 x00000101, 0 x00000a0b },
{ 4 , 0 x00022020, 0 x00001182, 0 x00000101, 0 x00000a0b },
{ 5 , 0 x00022020, 0 x00001186, 0 x00000101, 0 x00000a0b },
{ 6 , 0 x00022020, 0 x0000118a, 0 x00000101, 0 x00000a0b },
{ 7 , 0 x00022020, 0 x0000118e, 0 x00000101, 0 x00000a0b },
{ 8 , 0 x00022020, 0 x00001192, 0 x00000101, 0 x00000a0b },
{ 9 , 0 x00022020, 0 x00001196, 0 x00000101, 0 x00000a0b },
{ 10 , 0 x00022020, 0 x0000119a, 0 x00000101, 0 x00000a0b },
{ 11 , 0 x00022020, 0 x0000119e, 0 x00000101, 0 x00000a0b },
{ 12 , 0 x00022020, 0 x000011a2, 0 x00000101, 0 x00000a0b },
{ 13 , 0 x00022020, 0 x000011a6, 0 x00000101, 0 x00000a0b },
{ 14 , 0 x00022020, 0 x000011ae, 0 x00000101, 0 x00000a1b },
/* 802.11 UNI / HyperLan 2 */
{ 36 , 0 x00022010, 0 x00018896, 0 x00000101, 0 x00000a1f },
{ 40 , 0 x00022010, 0 x0001889a, 0 x00000101, 0 x00000a1f },
{ 44 , 0 x00022010, 0 x0001889e, 0 x00000101, 0 x00000a1f },
{ 48 , 0 x00022010, 0 x000188a2, 0 x00000101, 0 x00000a1f },
{ 52 , 0 x00022010, 0 x000188a6, 0 x00000101, 0 x00000a1f },
{ 66 , 0 x00022010, 0 x000188aa, 0 x00000101, 0 x00000a1f },
{ 60 , 0 x00022010, 0 x000188ae, 0 x00000101, 0 x00000a1f },
{ 64 , 0 x00022010, 0 x000188b2, 0 x00000101, 0 x00000a1f },
/* 802.11 HyperLan 2 */
{ 100 , 0 x00022010, 0 x00008802, 0 x00000101, 0 x00000a0f },
{ 104 , 0 x00022010, 0 x00008806, 0 x00000101, 0 x00000a0f },
{ 108 , 0 x00022010, 0 x0000880a, 0 x00000101, 0 x00000a0f },
{ 112 , 0 x00022010, 0 x0000880e, 0 x00000101, 0 x00000a0f },
{ 116 , 0 x00022010, 0 x00008812, 0 x00000101, 0 x00000a0f },
{ 120 , 0 x00022010, 0 x00008816, 0 x00000101, 0 x00000a0f },
{ 124 , 0 x00022010, 0 x0000881a, 0 x00000101, 0 x00000a0f },
{ 128 , 0 x00022010, 0 x0000881e, 0 x00000101, 0 x00000a0f },
{ 132 , 0 x00022010, 0 x00008822, 0 x00000101, 0 x00000a0f },
{ 136 , 0 x00022010, 0 x00008826, 0 x00000101, 0 x00000a0f },
/* 802.11 UNII */
{ 140 , 0 x00022010, 0 x0000882a, 0 x00000101, 0 x00000a0f },
{ 149 , 0 x00022020, 0 x000090a6, 0 x00000101, 0 x00000a07 },
{ 153 , 0 x00022020, 0 x000090ae, 0 x00000101, 0 x00000a07 },
{ 157 , 0 x00022020, 0 x000090b6, 0 x00000101, 0 x00000a07 },
{ 161 , 0 x00022020, 0 x000090be, 0 x00000101, 0 x00000a07 },
};
static int rt2500pci_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 .
*/
ieee80211_hw_set(rt2x00dev->hw, PS_NULLFUNC_STACK);
ieee80211_hw_set(rt2x00dev->hw, SUPPORTS_PS);
ieee80211_hw_set(rt2x00dev->hw, HOST_BROADCAST_PS_BUFFERING);
ieee80211_hw_set(rt2x00dev->hw, SIGNAL_DBM);
SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
rt2x00_eeprom_addr(rt2x00dev,
EEPROM_MAC_ADDR_0));
/*
* Disable powersaving as default .
*/
rt2x00dev->hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
/*
* Initialize hw_mode information .
*/
spec->supported_bands = SUPPORT_BAND_2GHZ;
spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
if (rt2x00_rf(rt2x00dev, RF2522)) {
spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
spec->channels = rf_vals_bg_2522;
} else if (rt2x00_rf(rt2x00dev, RF2523)) {
spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
spec->channels = rf_vals_bg_2523;
} else if (rt2x00_rf(rt2x00dev, RF2524)) {
spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
spec->channels = rf_vals_bg_2524;
} else if (rt2x00_rf(rt2x00dev, RF2525)) {
spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
spec->channels = rf_vals_bg_2525;
} else if (rt2x00_rf(rt2x00dev, RF2525E)) {
spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
spec->channels = rf_vals_bg_2525e;
} else if (rt2x00_rf(rt2x00dev, RF5222)) {
spec->supported_bands |= SUPPORT_BAND_5GHZ;
spec->num_channels = ARRAY_SIZE(rf_vals_5222);
spec->channels = rf_vals_5222;
}
/*
* Create channel information array
*/
info = kcalloc(spec->num_channels, sizeof (*info), GFP_KERNEL);
if (!info)
return -ENOMEM;
spec->channels_info = info;
tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
for (i = 0 ; i < 14 ; i++) {
info[i].max_power = MAX_TXPOWER;
info[i].default_power1 = TXPOWER_FROM_DEV(tx_power[i]);
}
if (spec->num_channels > 14 ) {
for (i = 14 ; i < spec->num_channels; i++) {
info[i].max_power = MAX_TXPOWER;
info[i].default_power1 = DEFAULT_TXPOWER;
}
}
return 0 ;
}
static int rt2500pci_probe_hw(struct rt2x00_dev *rt2x00dev)
{
int retval;
u32 reg;
/*
* Allocate eeprom data .
*/
retval = rt2500pci_validate_eeprom(rt2x00dev);
if (retval)
return retval;
retval = rt2500pci_init_eeprom(rt2x00dev);
if (retval)
return retval;
/*
* Enable rfkill polling by setting GPIO direction of the
* rfkill switch GPIO pin correctly .
*/
reg = rt2x00mmio_register_read(rt2x00dev, GPIOCSR);
rt2x00_set_field32(®, GPIOCSR_DIR0, 1 );
rt2x00mmio_register_write(rt2x00dev, GPIOCSR, reg);
/*
* Initialize hw specifications .
*/
retval = rt2500pci_probe_hw_mode(rt2x00dev);
if (retval)
return retval;
/*
* This device requires the atim queue and DMA - mapped skbs .
*/
__set_bit(REQUIRE_ATIM_QUEUE, &rt2x00dev->cap_flags);
__set_bit(REQUIRE_DMA, &rt2x00dev->cap_flags);
__set_bit(REQUIRE_SW_SEQNO, &rt2x00dev->cap_flags);
/*
* Set the rssi offset .
*/
rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
return 0 ;
}
/*
* IEEE80211 stack callback functions .
*/
static u64 rt2500pci_get_tsf(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
u64 tsf;
u32 reg;
reg = rt2x00mmio_register_read(rt2x00dev, CSR17);
tsf = (u64) rt2x00_get_field32(reg, CSR17_HIGH_TSFTIMER) << 32 ;
reg = rt2x00mmio_register_read(rt2x00dev, CSR16);
tsf |= rt2x00_get_field32(reg, CSR16_LOW_TSFTIMER);
return tsf;
}
static int rt2500pci_tx_last_beacon(struct ieee80211_hw *hw)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
u32 reg;
reg = rt2x00mmio_register_read(rt2x00dev, CSR15);
return rt2x00_get_field32(reg, CSR15_BEACON_SENT);
}
static const struct ieee80211_ops rt2500pci_mac80211_ops = {
.add_chanctx = ieee80211_emulate_add_chanctx,
.remove_chanctx = ieee80211_emulate_remove_chanctx,
.change_chanctx = ieee80211_emulate_change_chanctx,
.switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
.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,
.sw_scan_start = rt2x00mac_sw_scan_start,
.sw_scan_complete = rt2x00mac_sw_scan_complete,
.get_stats = rt2x00mac_get_stats,
.bss_info_changed = rt2x00mac_bss_info_changed,
.conf_tx = rt2x00mac_conf_tx,
.get_tsf = rt2500pci_get_tsf,
.tx_last_beacon = rt2500pci_tx_last_beacon,
.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 rt2500pci_rt2x00_ops = {
.irq_handler = rt2500pci_interrupt,
.txstatus_tasklet = rt2500pci_txstatus_tasklet,
.tbtt_tasklet = rt2500pci_tbtt_tasklet,
.rxdone_tasklet = rt2500pci_rxdone_tasklet,
.probe_hw = rt2500pci_probe_hw,
.initialize = rt2x00mmio_initialize,
.uninitialize = rt2x00mmio_uninitialize,
.get_entry_state = rt2500pci_get_entry_state,
.clear_entry = rt2500pci_clear_entry,
.set_device_state = rt2500pci_set_device_state,
.rfkill_poll = rt2500pci_rfkill_poll,
.link_stats = rt2500pci_link_stats,
.reset_tuner = rt2500pci_reset_tuner,
.link_tuner = rt2500pci_link_tuner,
.start_queue = rt2500pci_start_queue,
.kick_queue = rt2500pci_kick_queue,
.stop_queue = rt2500pci_stop_queue,
.flush_queue = rt2x00mmio_flush_queue,
.write_tx_desc = rt2500pci_write_tx_desc,
.write_beacon = rt2500pci_write_beacon,
.fill_rxdone = rt2500pci_fill_rxdone,
.config_filter = rt2500pci_config_filter,
.config_intf = rt2500pci_config_intf,
.config_erp = rt2500pci_config_erp,
.config_ant = rt2500pci_config_ant,
.config = rt2500pci_config,
};
static void rt2500pci_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_mmio);
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_mmio);
break ;
case QID_BEACON:
queue->limit = 1 ;
queue->data_size = MGMT_FRAME_SIZE;
queue->desc_size = TXD_DESC_SIZE;
queue->priv_size = sizeof (struct queue_entry_priv_mmio);
break ;
case QID_ATIM:
queue->limit = 8 ;
queue->data_size = DATA_FRAME_SIZE;
queue->desc_size = TXD_DESC_SIZE;
queue->priv_size = sizeof (struct queue_entry_priv_mmio);
break ;
default :
BUG();
break ;
}
}
static const struct rt2x00_ops rt2500pci_ops = {
.name = KBUILD_MODNAME,
.max_ap_intf = 1 ,
.eeprom_size = EEPROM_SIZE,
.rf_size = RF_SIZE,
.tx_queues = NUM_TX_QUEUES,
.queue_init = rt2500pci_queue_init,
.lib = &rt2500pci_rt2x00_ops,
.hw = &rt2500pci_mac80211_ops,
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
.debugfs = &rt2500pci_rt2x00debug,
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
};
/*
* RT2500pci module information .
*/
static const struct pci_device_id rt2500pci_device_table[] = {
{ PCI_DEVICE(0 x1814, 0 x0201) },
{ 0 , }
};
MODULE_AUTHOR(DRV_PROJECT);
MODULE_VERSION(DRV_VERSION);
MODULE_DESCRIPTION("Ralink RT2500 PCI & PCMCIA Wireless LAN driver." );
MODULE_DEVICE_TABLE(pci, rt2500pci_device_table);
MODULE_LICENSE("GPL" );
static int rt2500pci_probe(struct pci_dev *pci_dev,
const struct pci_device_id *id)
{
return rt2x00pci_probe(pci_dev, &rt2500pci_ops);
}
static struct pci_driver rt2500pci_driver = {
.name = KBUILD_MODNAME,
.id_table = rt2500pci_device_table,
.probe = rt2500pci_probe,
.remove = rt2x00pci_remove,
.driver.pm = &rt2x00pci_pm_ops,
};
module_pci_driver(rt2500pci_driver);
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