package/rt2x00/src/rt2400pci.c

   1 /*
   2         Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
   3         <http://rt2x00.serialmonkey.com>
   4
   5         This program is free software; you can redistribute it and/or modify
   6         it under the terms of the GNU General Public License as published by
   7         the Free Software Foundation; either version 2 of the License, or
   8         (at your option) any later version.
   9
  10         This program is distributed in the hope that it will be useful,
  11         but WITHOUT ANY WARRANTY; without even the implied warranty of
  12         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13         GNU General Public License for more details.
  14
  15         You should have received a copy of the GNU General Public License
  16         along with this program; if not, write to the
  17         Free Software Foundation, Inc.,
  18         59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 /*
  22         Module: rt2400pci
  23         Abstract: rt2400pci device specific routines.
  24         Supported chipsets: RT2460.
  25  */
  26
  27 /*
  28  * Set enviroment defines for rt2x00.h
  29  */
  30 #define DRV_NAME "rt2400pci"
  31
  32 #include <linux/delay.h>
  33 #include <linux/etherdevice.h>
  34 #include <linux/init.h>
  35 #include <linux/kernel.h>
  36 #include <linux/module.h>
  37 #include <linux/pci.h>
  38 #include <linux/eeprom_93cx6.h>
  39
  40 #include "rt2x00.h"
  41 #include "rt2x00pci.h"
  42 #include "rt2400pci.h"
  43
  44 /*
  45  * Register access.
  46  * All access to the CSR registers will go through the methods
  47  * rt2x00pci_register_read and rt2x00pci_register_write.
  48  * BBP and RF register require indirect register access,
  49  * and use the CSR registers BBPCSR and RFCSR to achieve this.
  50  * These indirect registers work with busy bits,
  51  * and we will try maximal REGISTER_BUSY_COUNT times to access
  52  * the register while taking a REGISTER_BUSY_DELAY us delay
  53  * between each attampt. When the busy bit is still set at that time,
  54  * the access attempt is considered to have failed,
  55  * and we will print an error.
  56  */
  57 static u32 rt2400pci_bbp_check(const struct rt2x00_dev *rt2x00dev)
  58 {
  59         u32 reg;
  60         unsigned int i;
  61
  62         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
  63                 rt2x00pci_register_read(rt2x00dev, BBPCSR, &reg);
  64                 if (!rt2x00_get_field32(reg, BBPCSR_BUSY))
  65                         break;
  66                 udelay(REGISTER_BUSY_DELAY);
  67         }
  68
  69         return reg;
  70 }
  71
  72 static void rt2400pci_bbp_write(const struct rt2x00_dev *rt2x00dev,
  73                                 const unsigned int word, const u8 value)
  74 {
  75         u32 reg;
  76
  77         /*
  78          * Wait until the BBP becomes ready.
  79          */
  80         reg = rt2400pci_bbp_check(rt2x00dev);
  81         if (rt2x00_get_field32(reg, BBPCSR_BUSY)) {
  82                 ERROR(rt2x00dev, "BBPCSR register busy. Write failed.\n");
  83                 return;
  84         }
  85
  86         /*
  87          * Write the data into the BBP.
  88          */
  89         reg = 0;
  90         rt2x00_set_field32(&reg, BBPCSR_VALUE, value);
  91         rt2x00_set_field32(&reg, BBPCSR_REGNUM, word);
  92         rt2x00_set_field32(&reg, BBPCSR_BUSY, 1);
  93         rt2x00_set_field32(&reg, BBPCSR_WRITE_CONTROL, 1);
  94
  95         rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
  96 }
  97
  98 static void rt2400pci_bbp_read(const struct rt2x00_dev *rt2x00dev,
  99                                const unsigned int word, u8 *value)
 100 {
 101         u32 reg;
 102
 103         /*
 104          * Wait until the BBP becomes ready.
 105          */
 106         reg = rt2400pci_bbp_check(rt2x00dev);
 107         if (rt2x00_get_field32(reg, BBPCSR_BUSY)) {
 108                 ERROR(rt2x00dev, "BBPCSR register busy. Read failed.\n");
 109                 return;
 110         }
 111
 112         /*
 113          * Write the request into the BBP.
 114          */
 115         reg = 0;
 116         rt2x00_set_field32(&reg, BBPCSR_REGNUM, word);
 117         rt2x00_set_field32(&reg, BBPCSR_BUSY, 1);
 118         rt2x00_set_field32(&reg, BBPCSR_WRITE_CONTROL, 0);
 119
 120         rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
 121
 122         /*
 123          * Wait until the BBP becomes ready.
 124          */
 125         reg = rt2400pci_bbp_check(rt2x00dev);
 126         if (rt2x00_get_field32(reg, BBPCSR_BUSY)) {
 127                 ERROR(rt2x00dev, "BBPCSR register busy. Read failed.\n");
 128                 *value = 0xff;
 129                 return;
 130         }
 131
 132         *value = rt2x00_get_field32(reg, BBPCSR_VALUE);
 133 }
 134
 135 static void rt2400pci_rf_write(const struct rt2x00_dev *rt2x00dev,
 136                                const unsigned int word, const u32 value)
 137 {
 138         u32 reg;
 139         unsigned int i;
 140
 141         if (!word)
 142                 return;
 143
 144         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 145                 rt2x00pci_register_read(rt2x00dev, RFCSR, &reg);
 146                 if (!rt2x00_get_field32(reg, RFCSR_BUSY))
 147                         goto rf_write;
 148                 udelay(REGISTER_BUSY_DELAY);
 149         }
 150
 151         ERROR(rt2x00dev, "RFCSR register busy. Write failed.\n");
 152         return;
 153
 154 rf_write:
 155         reg = 0;
 156         rt2x00_set_field32(&reg, RFCSR_VALUE, value);
 157         rt2x00_set_field32(&reg, RFCSR_NUMBER_OF_BITS, 20);
 158         rt2x00_set_field32(&reg, RFCSR_IF_SELECT, 0);
 159         rt2x00_set_field32(&reg, RFCSR_BUSY, 1);
 160
 161         rt2x00pci_register_write(rt2x00dev, RFCSR, reg);
 162         rt2x00_rf_write(rt2x00dev, word, value);
 163 }
 164
 165 static void rt2400pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
 166 {
 167         struct rt2x00_dev *rt2x00dev = eeprom->data;
 168         u32 reg;
 169
 170         rt2x00pci_register_read(rt2x00dev, CSR21, &reg);
 171
 172         eeprom->reg_data_in = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_IN);
 173         eeprom->reg_data_out = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_OUT);
 174         eeprom->reg_data_clock =
 175             !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_CLOCK);
 176         eeprom->reg_chip_select =
 177             !!rt2x00_get_field32(reg, CSR21_EEPROM_CHIP_SELECT);
 178 }
 179
 180 static void rt2400pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
 181 {
 182         struct rt2x00_dev *rt2x00dev = eeprom->data;
 183         u32 reg = 0;
 184
 185         rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_IN, !!eeprom->reg_data_in);
 186         rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_OUT, !!eeprom->reg_data_out);
 187         rt2x00_set_field32(&reg, CSR21_EEPROM_DATA_CLOCK,
 188                            !!eeprom->reg_data_clock);
 189         rt2x00_set_field32(&reg, CSR21_EEPROM_CHIP_SELECT,
 190                            !!eeprom->reg_chip_select);
 191
 192         rt2x00pci_register_write(rt2x00dev, CSR21, reg);
 193 }
 194
 195 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 196 #define CSR_OFFSET(__word)      ( CSR_REG_BASE + ((__word) * sizeof(u32)) )
 197
 198 static void rt2400pci_read_csr(const struct rt2x00_dev *rt2x00dev,
 199                                const unsigned int word, u32 *data)
 200 {
 201         rt2x00pci_register_read(rt2x00dev, CSR_OFFSET(word), data);
 202 }
 203
 204 static void rt2400pci_write_csr(const struct rt2x00_dev *rt2x00dev,
 205                                 const unsigned int word, u32 data)
 206 {
 207         rt2x00pci_register_write(rt2x00dev, CSR_OFFSET(word), data);
 208 }
 209
 210 static const struct rt2x00debug rt2400pci_rt2x00debug = {
 211         .owner  = THIS_MODULE,
 212         .csr    = {
 213                 .read           = rt2400pci_read_csr,
 214                 .write          = rt2400pci_write_csr,
 215                 .word_size      = sizeof(u32),
 216                 .word_count     = CSR_REG_SIZE / sizeof(u32),
 217         },
 218         .eeprom = {
 219                 .read           = rt2x00_eeprom_read,
 220                 .write          = rt2x00_eeprom_write,
 221                 .word_size      = sizeof(u16),
 222                 .word_count     = EEPROM_SIZE / sizeof(u16),
 223         },
 224         .bbp    = {
 225                 .read           = rt2400pci_bbp_read,
 226                 .write          = rt2400pci_bbp_write,
 227                 .word_size      = sizeof(u8),
 228                 .word_count     = BBP_SIZE / sizeof(u8),
 229         },
 230         .rf     = {
 231                 .read           = rt2x00_rf_read,
 232                 .write          = rt2400pci_rf_write,
 233                 .word_size      = sizeof(u32),
 234                 .word_count     = RF_SIZE / sizeof(u32),
 235         },
 236 };
 237 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 238
 239 #ifdef CONFIG_RT2400PCI_RFKILL
 240 static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 241 {
 242         u32 reg;
 243
 244         rt2x00pci_register_read(rt2x00dev, GPIOCSR, &reg);
 245         return rt2x00_get_field32(reg, GPIOCSR_BIT0);
 246 }
 247 #else
 248 #define rt2400pci_rfkill_poll   NULL
 249 #endif /* CONFIG_RT2400PCI_RFKILL */
 250
 251 /*
 252  * Configuration handlers.
 253  */
 254 static void rt2400pci_config_mac_addr(struct rt2x00_dev *rt2x00dev,
 255                                       __le32 *mac)
 256 {
 257         rt2x00pci_register_multiwrite(rt2x00dev, CSR3, mac,
 258                                       (2 * sizeof(__le32)));
 259 }
 260
 261 static void rt2400pci_config_bssid(struct rt2x00_dev *rt2x00dev,
 262                                    __le32 *bssid)
 263 {
 264         rt2x00pci_register_multiwrite(rt2x00dev, CSR5, bssid,
 265                                       (2 * sizeof(__le32)));
 266 }
 267
 268 static void rt2400pci_config_type(struct rt2x00_dev *rt2x00dev, const int type,
 269                                   const int tsf_sync)
 270 {
 271         u32 reg;
 272
 273         rt2x00pci_register_write(rt2x00dev, CSR14, 0);
 274
 275         /*
 276          * Enable beacon config
 277          */
 278         rt2x00pci_register_read(rt2x00dev, BCNCSR1, &reg);
 279         rt2x00_set_field32(&reg, BCNCSR1_PRELOAD,
 280                            PREAMBLE + get_duration(IEEE80211_HEADER, 20));
 281         rt2x00pci_register_write(rt2x00dev, BCNCSR1, reg);
 282
 283         /*
 284          * Enable synchronisation.
 285          */
 286         rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
 287         rt2x00_set_field32(&reg, CSR14_TSF_COUNT, 1);
 288         rt2x00_set_field32(&reg, CSR14_TBCN, 1);
 289         rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 0);
 290         rt2x00_set_field32(&reg, CSR14_TSF_SYNC, tsf_sync);
 291         rt2x00pci_register_write(rt2x00dev, CSR14, reg);
 292 }
 293
 294 static void rt2400pci_config_preamble(struct rt2x00_dev *rt2x00dev,
 295                                       const int short_preamble,
 296                                       const int ack_timeout,
 297                                       const int ack_consume_time)
 298 {
 299         int preamble_mask;
 300         u32 reg;
 301
 302         /*
 303          * When short preamble is enabled, we should set bit 0x08
 304          */
 305         preamble_mask = short_preamble << 3;
 306
 307         rt2x00pci_register_read(rt2x00dev, TXCSR1, &reg);
 308         rt2x00_set_field32(&reg, TXCSR1_ACK_TIMEOUT, ack_timeout);
 309         rt2x00_set_field32(&reg, TXCSR1_ACK_CONSUME_TIME, ack_consume_time);
 310         rt2x00pci_register_write(rt2x00dev, TXCSR1, reg);
 311
 312         rt2x00pci_register_read(rt2x00dev, ARCSR2, &reg);
 313         rt2x00_set_field32(&reg, ARCSR2_SIGNAL, 0x00 | preamble_mask);
 314         rt2x00_set_field32(&reg, ARCSR2_SERVICE, 0x04);
 315         rt2x00_set_field32(&reg, ARCSR2_LENGTH, get_duration(ACK_SIZE, 10));
 316         rt2x00pci_register_write(rt2x00dev, ARCSR2, reg);
 317
 318         rt2x00pci_register_read(rt2x00dev, ARCSR3, &reg);
 319         rt2x00_set_field32(&reg, ARCSR3_SIGNAL, 0x01 | preamble_mask);
 320         rt2x00_set_field32(&reg, ARCSR3_SERVICE, 0x04);
 321         rt2x00_set_field32(&reg, ARCSR2_LENGTH, get_duration(ACK_SIZE, 20));
 322         rt2x00pci_register_write(rt2x00dev, ARCSR3, reg);
 323
 324         rt2x00pci_register_read(rt2x00dev, ARCSR4, &reg);
 325         rt2x00_set_field32(&reg, ARCSR4_SIGNAL, 0x02 | preamble_mask);
 326         rt2x00_set_field32(&reg, ARCSR4_SERVICE, 0x04);
 327         rt2x00_set_field32(&reg, ARCSR2_LENGTH, get_duration(ACK_SIZE, 55));
 328         rt2x00pci_register_write(rt2x00dev, ARCSR4, reg);
 329
 330         rt2x00pci_register_read(rt2x00dev, ARCSR5, &reg);
 331         rt2x00_set_field32(&reg, ARCSR5_SIGNAL, 0x03 | preamble_mask);
 332         rt2x00_set_field32(&reg, ARCSR5_SERVICE, 0x84);
 333         rt2x00_set_field32(&reg, ARCSR2_LENGTH, get_duration(ACK_SIZE, 110));
 334         rt2x00pci_register_write(rt2x00dev, ARCSR5, reg);
 335 }
 336
 337 static void rt2400pci_config_phymode(struct rt2x00_dev *rt2x00dev,
 338                                      const int basic_rate_mask)
 339 {
 340         rt2x00pci_register_write(rt2x00dev, ARCSR1, basic_rate_mask);
 341 }
 342
 343 static void rt2400pci_config_channel(struct rt2x00_dev *rt2x00dev,
 344                                      struct rf_channel *rf)
 345 {
 346         /*
 347          * Switch on tuning bits.
 348          */
 349         rt2x00_set_field32(&rf->rf1, RF1_TUNER, 1);
 350         rt2x00_set_field32(&rf->rf3, RF3_TUNER, 1);
 351
 352         rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
 353         rt2400pci_rf_write(rt2x00dev, 2, rf->rf2);
 354         rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
 355
 356         /*
 357          * RF2420 chipset don't need any additional actions.
 358          */
 359         if (rt2x00_rf(&rt2x00dev->chip, RF2420))
 360                 return;
 361
 362         /*
 363          * For the RT2421 chipsets we need to write an invalid
 364          * reference clock rate to activate auto_tune.
 365          * After that we set the value back to the correct channel.
 366          */
 367         rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
 368         rt2400pci_rf_write(rt2x00dev, 2, 0x000c2a32);
 369         rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
 370
 371         msleep(1);
 372
 373         rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
 374         rt2400pci_rf_write(rt2x00dev, 2, rf->rf2);
 375         rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
 376
 377         msleep(1);
 378
 379         /*
 380          * Switch off tuning bits.
 381          */
 382         rt2x00_set_field32(&rf->rf1, RF1_TUNER, 0);
 383         rt2x00_set_field32(&rf->rf3, RF3_TUNER, 0);
 384
 385         rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
 386         rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
 387
 388         /*
 389          * Clear false CRC during channel switch.
 390          */
 391         rt2x00pci_register_read(rt2x00dev, CNT0, &rf->rf1);
 392 }
 393
 394 static void rt2400pci_config_txpower(struct rt2x00_dev *rt2x00dev, int txpower)
 395 {
 396         rt2400pci_bbp_write(rt2x00dev, 3, TXPOWER_TO_DEV(txpower));
 397 }
 398
 399 static void rt2400pci_config_antenna(struct rt2x00_dev *rt2x00dev,
 400                                      int antenna_tx, int antenna_rx)
 401 {
 402         u8 r1;
 403         u8 r4;
 404
 405         rt2400pci_bbp_read(rt2x00dev, 4, &r4);
 406         rt2400pci_bbp_read(rt2x00dev, 1, &r1);
 407
 408         /*
 409          * Configure the TX antenna.
 410          */
 411         switch (antenna_tx) {
 412         case ANTENNA_SW_DIVERSITY:
 413         case ANTENNA_HW_DIVERSITY:
 414                 rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 1);
 415                 break;
 416         case ANTENNA_A:
 417                 rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 0);
 418                 break;
 419         case ANTENNA_B:
 420                 rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 2);
 421                 break;
 422         }
 423
 424         /*
 425          * Configure the RX antenna.
 426          */
 427         switch (antenna_rx) {
 428         case ANTENNA_SW_DIVERSITY:
 429         case ANTENNA_HW_DIVERSITY:
 430                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
 431                 break;
 432         case ANTENNA_A:
 433                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 0);
 434                 break;
 435         case ANTENNA_B:
 436                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
 437                 break;
 438         }
 439
 440         rt2400pci_bbp_write(rt2x00dev, 4, r4);
 441         rt2400pci_bbp_write(rt2x00dev, 1, r1);
 442 }
 443
 444 static void rt2400pci_config_duration(struct rt2x00_dev *rt2x00dev,
 445                                       struct rt2x00lib_conf *libconf)
 446 {
 447         u32 reg;
 448
 449         rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
 450         rt2x00_set_field32(&reg, CSR11_SLOT_TIME, libconf->slot_time);
 451         rt2x00pci_register_write(rt2x00dev, CSR11, reg);
 452
 453         rt2x00pci_register_read(rt2x00dev, CSR18, &reg);
 454         rt2x00_set_field32(&reg, CSR18_SIFS, libconf->sifs);
 455         rt2x00_set_field32(&reg, CSR18_PIFS, libconf->pifs);
 456         rt2x00pci_register_write(rt2x00dev, CSR18, reg);
 457
 458         rt2x00pci_register_read(rt2x00dev, CSR19, &reg);
 459         rt2x00_set_field32(&reg, CSR19_DIFS, libconf->difs);
 460         rt2x00_set_field32(&reg, CSR19_EIFS, libconf->eifs);
 461         rt2x00pci_register_write(rt2x00dev, CSR19, reg);
 462
 463         rt2x00pci_register_read(rt2x00dev, TXCSR1, &reg);
 464         rt2x00_set_field32(&reg, TXCSR1_TSF_OFFSET, IEEE80211_HEADER);
 465         rt2x00_set_field32(&reg, TXCSR1_AUTORESPONDER, 1);
 466         rt2x00pci_register_write(rt2x00dev, TXCSR1, reg);
 467
 468         rt2x00pci_register_read(rt2x00dev, CSR12, &reg);
 469         rt2x00_set_field32(&reg, CSR12_BEACON_INTERVAL,
 470                            libconf->conf->beacon_int * 16);
 471         rt2x00_set_field32(&reg, CSR12_CFP_MAX_DURATION,
 472                            libconf->conf->beacon_int * 16);
 473         rt2x00pci_register_write(rt2x00dev, CSR12, reg);
 474 }
 475
 476 static void rt2400pci_config(struct rt2x00_dev *rt2x00dev,
 477                              const unsigned int flags,
 478                              struct rt2x00lib_conf *libconf)
 479 {
 480         if (flags & CONFIG_UPDATE_PHYMODE)
 481                 rt2400pci_config_phymode(rt2x00dev, libconf->basic_rates);
 482         if (flags & CONFIG_UPDATE_CHANNEL)
 483                 rt2400pci_config_channel(rt2x00dev, &libconf->rf);
 484         if (flags & CONFIG_UPDATE_TXPOWER)
 485                 rt2400pci_config_txpower(rt2x00dev,
 486                                          libconf->conf->power_level);
 487         if (flags & CONFIG_UPDATE_ANTENNA)
 488                 rt2400pci_config_antenna(rt2x00dev,
 489                                          libconf->conf->antenna_sel_tx,
 490                                          libconf->conf->antenna_sel_rx);
 491         if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
 492                 rt2400pci_config_duration(rt2x00dev, libconf);
 493 }
 494
 495 static void rt2400pci_config_cw(struct rt2x00_dev *rt2x00dev,
 496                                 struct ieee80211_tx_queue_params *params)
 497 {
 498         u32 reg;
 499
 500         rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
 501         rt2x00_set_field32(&reg, CSR11_CWMIN, params->cw_min);
 502         rt2x00_set_field32(&reg, CSR11_CWMAX, params->cw_max);
 503         rt2x00pci_register_write(rt2x00dev, CSR11, reg);
 504 }
 505
 506 /*
 507  * LED functions.
 508  */
 509 static void rt2400pci_enable_led(struct rt2x00_dev *rt2x00dev)
 510 {
 511         u32 reg;
 512
 513         rt2x00pci_register_read(rt2x00dev, LEDCSR, &reg);
 514
 515         rt2x00_set_field32(&reg, LEDCSR_ON_PERIOD, 70);
 516         rt2x00_set_field32(&reg, LEDCSR_OFF_PERIOD, 30);
 517
 518         if (rt2x00dev->led_mode == LED_MODE_TXRX_ACTIVITY) {
 519                 rt2x00_set_field32(&reg, LEDCSR_LINK, 1);
 520                 rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, 0);
 521         } else if (rt2x00dev->led_mode == LED_MODE_ASUS) {
 522                 rt2x00_set_field32(&reg, LEDCSR_LINK, 0);
 523                 rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, 1);
 524         } else {
 525                 rt2x00_set_field32(&reg, LEDCSR_LINK, 1);
 526                 rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, 1);
 527         }
 528
 529         rt2x00pci_register_write(rt2x00dev, LEDCSR, reg);
 530 }
 531
 532 static void rt2400pci_disable_led(struct rt2x00_dev *rt2x00dev)
 533 {
 534         u32 reg;
 535
 536         rt2x00pci_register_read(rt2x00dev, LEDCSR, &reg);
 537         rt2x00_set_field32(&reg, LEDCSR_LINK, 0);
 538         rt2x00_set_field32(&reg, LEDCSR_ACTIVITY, 0);
 539         rt2x00pci_register_write(rt2x00dev, LEDCSR, reg);
 540 }
 541
 542 /*
 543  * Link tuning
 544  */
 545 static void rt2400pci_link_stats(struct rt2x00_dev *rt2x00dev)
 546 {
 547         u32 reg;
 548         u8 bbp;
 549
 550         /*
 551          * Update FCS error count from register.
 552          */
 553         rt2x00pci_register_read(rt2x00dev, CNT0, &reg);
 554         rt2x00dev->link.rx_failed = rt2x00_get_field32(reg, CNT0_FCS_ERROR);
 555
 556         /*
 557          * Update False CCA count from register.
 558          */
 559         rt2400pci_bbp_read(rt2x00dev, 39, &bbp);
 560         rt2x00dev->link.false_cca = bbp;
 561 }
 562
 563 static void rt2400pci_reset_tuner(struct rt2x00_dev *rt2x00dev)
 564 {
 565         rt2400pci_bbp_write(rt2x00dev, 13, 0x08);
 566         rt2x00dev->link.vgc_level = 0x08;
 567 }
 568
 569 static void rt2400pci_link_tuner(struct rt2x00_dev *rt2x00dev)
 570 {
 571         u8 reg;
 572
 573         /*
 574          * The link tuner should not run longer then 60 seconds,
 575          * and should run once every 2 seconds.
 576          */
 577         if (rt2x00dev->link.count > 60 || !(rt2x00dev->link.count & 1))
 578                 return;
 579
 580         /*
 581          * Base r13 link tuning on the false cca count.
 582          */
 583         rt2400pci_bbp_read(rt2x00dev, 13, &reg);
 584
 585         if (rt2x00dev->link.false_cca > 512 && reg < 0x20) {
 586                 rt2400pci_bbp_write(rt2x00dev, 13, ++reg);
 587                 rt2x00dev->link.vgc_level = reg;
 588         } else if (rt2x00dev->link.false_cca < 100 && reg > 0x08) {
 589                 rt2400pci_bbp_write(rt2x00dev, 13, --reg);
 590                 rt2x00dev->link.vgc_level = reg;
 591         }
 592 }
 593
 594 /*
 595  * Initialization functions.
 596  */
 597 static void rt2400pci_init_rxring(struct rt2x00_dev *rt2x00dev)
 598 {
 599         struct data_ring *ring = rt2x00dev->rx;
 600         struct data_desc *rxd;
 601         unsigned int i;
 602         u32 word;
 603
 604         memset(ring->data_addr, 0x00, rt2x00_get_ring_size(ring));
 605
 606         for (i = 0; i < ring->stats.limit; i++) {
 607                 rxd = ring->entry[i].priv;
 608
 609                 rt2x00_desc_read(rxd, 2, &word);
 610                 rt2x00_set_field32(&word, RXD_W2_BUFFER_LENGTH,
 611                                    ring->data_size);
 612                 rt2x00_desc_write(rxd, 2, word);
 613
 614                 rt2x00_desc_read(rxd, 1, &word);
 615                 rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS,
 616                                    ring->entry[i].data_dma);
 617                 rt2x00_desc_write(rxd, 1, word);
 618
 619                 rt2x00_desc_read(rxd, 0, &word);
 620                 rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
 621                 rt2x00_desc_write(rxd, 0, word);
 622         }
 623
 624         rt2x00_ring_index_clear(rt2x00dev->rx);
 625 }
 626
 627 static void rt2400pci_init_txring(struct rt2x00_dev *rt2x00dev, const int queue)
 628 {
 629         struct data_ring *ring = rt2x00lib_get_ring(rt2x00dev, queue);
 630         struct data_desc *txd;
 631         unsigned int i;
 632         u32 word;
 633
 634         memset(ring->data_addr, 0x00, rt2x00_get_ring_size(ring));
 635
 636         for (i = 0; i < ring->stats.limit; i++) {
 637                 txd = ring->entry[i].priv;
 638
 639                 rt2x00_desc_read(txd, 1, &word);
 640                 rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS,
 641                                    ring->entry[i].data_dma);
 642                 rt2x00_desc_write(txd, 1, word);
 643
 644                 rt2x00_desc_read(txd, 2, &word);
 645                 rt2x00_set_field32(&word, TXD_W2_BUFFER_LENGTH,
 646                                    ring->data_size);
 647                 rt2x00_desc_write(txd, 2, word);
 648
 649                 rt2x00_desc_read(txd, 0, &word);
 650                 rt2x00_set_field32(&word, TXD_W0_VALID, 0);
 651                 rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
 652                 rt2x00_desc_write(txd, 0, word);
 653         }
 654
 655         rt2x00_ring_index_clear(ring);
 656 }
 657
 658 static int rt2400pci_init_rings(struct rt2x00_dev *rt2x00dev)
 659 {
 660         u32 reg;
 661
 662         /*
 663          * Initialize rings.
 664          */
 665         rt2400pci_init_rxring(rt2x00dev);
 666         rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA0);
 667         rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA1);
 668         rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_AFTER_BEACON);
 669         rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
 670
 671         /*
 672          * Initialize registers.
 673          */
 674         rt2x00pci_register_read(rt2x00dev, TXCSR2, &reg);
 675         rt2x00_set_field32(&reg, TXCSR2_TXD_SIZE,
 676                            rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].desc_size);
 677         rt2x00_set_field32(&reg, TXCSR2_NUM_TXD,
 678                            rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].stats.limit);
 679         rt2x00_set_field32(&reg, TXCSR2_NUM_ATIM,
 680                            rt2x00dev->bcn[1].stats.limit);
 681         rt2x00_set_field32(&reg, TXCSR2_NUM_PRIO,
 682                            rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].stats.limit);
 683         rt2x00pci_register_write(rt2x00dev, TXCSR2, reg);
 684
 685         rt2x00pci_register_read(rt2x00dev, TXCSR3, &reg);
 686         rt2x00_set_field32(&reg, TXCSR3_TX_RING_REGISTER,
 687                            rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].data_dma);
 688         rt2x00pci_register_write(rt2x00dev, TXCSR3, reg);
 689
 690         rt2x00pci_register_read(rt2x00dev, TXCSR5, &reg);
 691         rt2x00_set_field32(&reg, TXCSR5_PRIO_RING_REGISTER,
 692                            rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].data_dma);
 693         rt2x00pci_register_write(rt2x00dev, TXCSR5, reg);
 694
 695         rt2x00pci_register_read(rt2x00dev, TXCSR4, &reg);
 696         rt2x00_set_field32(&reg, TXCSR4_ATIM_RING_REGISTER,
 697                            rt2x00dev->bcn[1].data_dma);
 698         rt2x00pci_register_write(rt2x00dev, TXCSR4, reg);
 699
 700         rt2x00pci_register_read(rt2x00dev, TXCSR6, &reg);
 701         rt2x00_set_field32(&reg, TXCSR6_BEACON_RING_REGISTER,
 702                            rt2x00dev->bcn[0].data_dma);
 703         rt2x00pci_register_write(rt2x00dev, TXCSR6, reg);
 704
 705         rt2x00pci_register_read(rt2x00dev, RXCSR1, &reg);
 706         rt2x00_set_field32(&reg, RXCSR1_RXD_SIZE, rt2x00dev->rx->desc_size);
 707         rt2x00_set_field32(&reg, RXCSR1_NUM_RXD, rt2x00dev->rx->stats.limit);
 708         rt2x00pci_register_write(rt2x00dev, RXCSR1, reg);
 709
 710         rt2x00pci_register_read(rt2x00dev, RXCSR2, &reg);
 711         rt2x00_set_field32(&reg, RXCSR2_RX_RING_REGISTER,
 712                            rt2x00dev->rx->data_dma);
 713         rt2x00pci_register_write(rt2x00dev, RXCSR2, reg);
 714
 715         return 0;
 716 }
 717
 718 static int rt2400pci_init_registers(struct rt2x00_dev *rt2x00dev)
 719 {
 720         u32 reg;
 721
 722         rt2x00pci_register_write(rt2x00dev, PSCSR0, 0x00020002);
 723         rt2x00pci_register_write(rt2x00dev, PSCSR1, 0x00000002);
 724         rt2x00pci_register_write(rt2x00dev, PSCSR2, 0x00023f20);
 725         rt2x00pci_register_write(rt2x00dev, PSCSR3, 0x00000002);
 726
 727         rt2x00pci_register_read(rt2x00dev, TIMECSR, &reg);
 728         rt2x00_set_field32(&reg, TIMECSR_US_COUNT, 33);
 729         rt2x00_set_field32(&reg, TIMECSR_US_64_COUNT, 63);
 730         rt2x00_set_field32(&reg, TIMECSR_BEACON_EXPECT, 0);
 731         rt2x00pci_register_write(rt2x00dev, TIMECSR, reg);
 732
 733         rt2x00pci_register_read(rt2x00dev, CSR9, &reg);
 734         rt2x00_set_field32(&reg, CSR9_MAX_FRAME_UNIT,
 735                            (rt2x00dev->rx->data_size / 128));
 736         rt2x00pci_register_write(rt2x00dev, CSR9, reg);
 737
 738         rt2x00pci_register_write(rt2x00dev, CNT3, 0x3f080000);
 739
 740         rt2x00pci_register_read(rt2x00dev, ARCSR0, &reg);
 741         rt2x00_set_field32(&reg, ARCSR0_AR_BBP_DATA0, 133);
 742         rt2x00_set_field32(&reg, ARCSR0_AR_BBP_ID0, 134);
 743         rt2x00_set_field32(&reg, ARCSR0_AR_BBP_DATA1, 136);
 744         rt2x00_set_field32(&reg, ARCSR0_AR_BBP_ID1, 135);
 745         rt2x00pci_register_write(rt2x00dev, ARCSR0, reg);
 746
 747         rt2x00pci_register_read(rt2x00dev, RXCSR3, &reg);
 748         rt2x00_set_field32(&reg, RXCSR3_BBP_ID0, 3); /* Tx power.*/
 749         rt2x00_set_field32(&reg, RXCSR3_BBP_ID0_VALID, 1);
 750         rt2x00_set_field32(&reg, RXCSR3_BBP_ID1, 32); /* Signal */
 751         rt2x00_set_field32(&reg, RXCSR3_BBP_ID1_VALID, 1);
 752         rt2x00_set_field32(&reg, RXCSR3_BBP_ID2, 36); /* Rssi */
 753         rt2x00_set_field32(&reg, RXCSR3_BBP_ID2_VALID, 1);
 754         rt2x00pci_register_write(rt2x00dev, RXCSR3, reg);
 755
 756         rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0x3f3b3100);
 757
 758         if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
 759                 return -EBUSY;
 760
 761         rt2x00pci_register_write(rt2x00dev, MACCSR0, 0x00217223);
 762         rt2x00pci_register_write(rt2x00dev, MACCSR1, 0x00235518);
 763
 764         rt2x00pci_register_read(rt2x00dev, MACCSR2, &reg);
 765         rt2x00_set_field32(&reg, MACCSR2_DELAY, 64);
 766         rt2x00pci_register_write(rt2x00dev, MACCSR2, reg);
 767
 768         rt2x00pci_register_read(rt2x00dev, RALINKCSR, &reg);
 769         rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_DATA0, 17);
 770         rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_ID0, 154);
 771         rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_DATA1, 0);
 772         rt2x00_set_field32(&reg, RALINKCSR_AR_BBP_ID1, 154);
 773         rt2x00pci_register_write(rt2x00dev, RALINKCSR, reg);
 774
 775         rt2x00pci_register_read(rt2x00dev, CSR1, &reg);
 776         rt2x00_set_field32(&reg, CSR1_SOFT_RESET, 1);
 777         rt2x00_set_field32(&reg, CSR1_BBP_RESET, 0);
 778         rt2x00_set_field32(&reg, CSR1_HOST_READY, 0);
 779         rt2x00pci_register_write(rt2x00dev, CSR1, reg);
 780
 781         rt2x00pci_register_read(rt2x00dev, CSR1, &reg);
 782         rt2x00_set_field32(&reg, CSR1_SOFT_RESET, 0);
 783         rt2x00_set_field32(&reg, CSR1_HOST_READY, 1);
 784         rt2x00pci_register_write(rt2x00dev, CSR1, reg);
 785
 786         /*
 787          * We must clear the FCS and FIFO error count.
 788          * These registers are cleared on read,
 789          * so we may pass a useless variable to store the value.
 790          */
 791         rt2x00pci_register_read(rt2x00dev, CNT0, &reg);
 792         rt2x00pci_register_read(rt2x00dev, CNT4, &reg);
 793
 794         return 0;
 795 }
 796
 797 static int rt2400pci_init_bbp(struct rt2x00_dev *rt2x00dev)
 798 {
 799         unsigned int i;
 800         u16 eeprom;
 801         u8 reg_id;
 802         u8 value;
 803
 804         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 805                 rt2400pci_bbp_read(rt2x00dev, 0, &value);
 806                 if ((value != 0xff) && (value != 0x00))
 807                         goto continue_csr_init;
 808                 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
 809                 udelay(REGISTER_BUSY_DELAY);
 810         }
 811
 812         ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
 813         return -EACCES;
 814
 815 continue_csr_init:
 816         rt2400pci_bbp_write(rt2x00dev, 1, 0x00);
 817         rt2400pci_bbp_write(rt2x00dev, 3, 0x27);
 818         rt2400pci_bbp_write(rt2x00dev, 4, 0x08);
 819         rt2400pci_bbp_write(rt2x00dev, 10, 0x0f);
 820         rt2400pci_bbp_write(rt2x00dev, 15, 0x72);
 821         rt2400pci_bbp_write(rt2x00dev, 16, 0x74);
 822         rt2400pci_bbp_write(rt2x00dev, 17, 0x20);
 823         rt2400pci_bbp_write(rt2x00dev, 18, 0x72);
 824         rt2400pci_bbp_write(rt2x00dev, 19, 0x0b);
 825         rt2400pci_bbp_write(rt2x00dev, 20, 0x00);
 826         rt2400pci_bbp_write(rt2x00dev, 28, 0x11);
 827         rt2400pci_bbp_write(rt2x00dev, 29, 0x04);
 828         rt2400pci_bbp_write(rt2x00dev, 30, 0x21);
 829         rt2400pci_bbp_write(rt2x00dev, 31, 0x00);
 830
 831         DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
 832         for (i = 0; i < EEPROM_BBP_SIZE; i++) {
 833                 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
 834
 835                 if (eeprom != 0xffff && eeprom != 0x0000) {
 836                         reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
 837                         value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
 838                         DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
 839                               reg_id, value);
 840                         rt2400pci_bbp_write(rt2x00dev, reg_id, value);
 841                 }
 842         }
 843         DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
 844
 845         return 0;
 846 }
 847
 848 /*
 849  * Device state switch handlers.
 850  */
 851 static void rt2400pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
 852                                 enum dev_state state)
 853 {
 854         u32 reg;
 855
 856         rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
 857         rt2x00_set_field32(&reg, RXCSR0_DISABLE_RX,
 858                            state == STATE_RADIO_RX_OFF);
 859         rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
 860 }
 861
 862 static void rt2400pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
 863                                  enum dev_state state)
 864 {
 865         int mask = (state == STATE_RADIO_IRQ_OFF);
 866         u32 reg;
 867
 868         /*
 869          * When interrupts are being enabled, the interrupt registers
 870          * should clear the register to assure a clean state.
 871          */
 872         if (state == STATE_RADIO_IRQ_ON) {
 873                 rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
 874                 rt2x00pci_register_write(rt2x00dev, CSR7, reg);
 875         }
 876
 877         /*
 878          * Only toggle the interrupts bits we are going to use.
 879          * Non-checked interrupt bits are disabled by default.
 880          */
 881         rt2x00pci_register_read(rt2x00dev, CSR8, &reg);
 882         rt2x00_set_field32(&reg, CSR8_TBCN_EXPIRE, mask);
 883         rt2x00_set_field32(&reg, CSR8_TXDONE_TXRING, mask);
 884         rt2x00_set_field32(&reg, CSR8_TXDONE_ATIMRING, mask);
 885         rt2x00_set_field32(&reg, CSR8_TXDONE_PRIORING, mask);
 886         rt2x00_set_field32(&reg, CSR8_RXDONE, mask);
 887         rt2x00pci_register_write(rt2x00dev, CSR8, reg);
 888 }
 889
 890 static int rt2400pci_enable_radio(struct rt2x00_dev *rt2x00dev)
 891 {
 892         /*
 893          * Initialize all registers.
 894          */
 895         if (rt2400pci_init_rings(rt2x00dev) ||
 896             rt2400pci_init_registers(rt2x00dev) ||
 897             rt2400pci_init_bbp(rt2x00dev)) {
 898                 ERROR(rt2x00dev, "Register initialization failed.\n");
 899                 return -EIO;
 900         }
 901
 902         /*
 903          * Enable interrupts.
 904          */
 905         rt2400pci_toggle_irq(rt2x00dev, STATE_RADIO_IRQ_ON);
 906
 907         /*
 908          * Enable LED
 909          */
 910         rt2400pci_enable_led(rt2x00dev);
 911
 912         return 0;
 913 }
 914
 915 static void rt2400pci_disable_radio(struct rt2x00_dev *rt2x00dev)
 916 {
 917         u32 reg;
 918
 919         /*
 920          * Disable LED
 921          */
 922         rt2400pci_disable_led(rt2x00dev);
 923
 924         rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0);
 925
 926         /*
 927          * Disable synchronisation.
 928          */
 929         rt2x00pci_register_write(rt2x00dev, CSR14, 0);
 930
 931         /*
 932          * Cancel RX and TX.
 933          */
 934         rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
 935         rt2x00_set_field32(&reg, TXCSR0_ABORT, 1);
 936         rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
 937
 938         /*
 939          * Disable interrupts.
 940          */
 941         rt2400pci_toggle_irq(rt2x00dev, STATE_RADIO_IRQ_OFF);
 942 }
 943
 944 static int rt2400pci_set_state(struct rt2x00_dev *rt2x00dev,
 945                                enum dev_state state)
 946 {
 947         u32 reg;
 948         unsigned int i;
 949         char put_to_sleep;
 950         char bbp_state;
 951         char rf_state;
 952
 953         put_to_sleep = (state != STATE_AWAKE);
 954
 955         rt2x00pci_register_read(rt2x00dev, PWRCSR1, &reg);
 956         rt2x00_set_field32(&reg, PWRCSR1_SET_STATE, 1);
 957         rt2x00_set_field32(&reg, PWRCSR1_BBP_DESIRE_STATE, state);
 958         rt2x00_set_field32(&reg, PWRCSR1_RF_DESIRE_STATE, state);
 959         rt2x00_set_field32(&reg, PWRCSR1_PUT_TO_SLEEP, put_to_sleep);
 960         rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg);
 961
 962         /*
 963          * Device is not guaranteed to be in the requested state yet.
 964          * We must wait until the register indicates that the
 965          * device has entered the correct state.
 966          */
 967         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 968                 rt2x00pci_register_read(rt2x00dev, PWRCSR1, &reg);
 969                 bbp_state = rt2x00_get_field32(reg, PWRCSR1_BBP_CURR_STATE);
 970                 rf_state = rt2x00_get_field32(reg, PWRCSR1_RF_CURR_STATE);
 971                 if (bbp_state == state && rf_state == state)
 972                         return 0;
 973                 msleep(10);
 974         }
 975
 976         NOTICE(rt2x00dev, "Device failed to enter state %d, "
 977                "current device state: bbp %d and rf %d.\n",
 978                state, bbp_state, rf_state);
 979
 980         return -EBUSY;
 981 }
 982
 983 static int rt2400pci_set_device_state(struct rt2x00_dev *rt2x00dev,
 984                                       enum dev_state state)
 985 {
 986         int retval = 0;
 987
 988         switch (state) {
 989         case STATE_RADIO_ON:
 990                 retval = rt2400pci_enable_radio(rt2x00dev);
 991                 break;
 992         case STATE_RADIO_OFF:
 993                 rt2400pci_disable_radio(rt2x00dev);
 994                 break;
 995         case STATE_RADIO_RX_ON:
 996         case STATE_RADIO_RX_OFF:
 997                 rt2400pci_toggle_rx(rt2x00dev, state);
 998                 break;
 999         case STATE_DEEP_SLEEP:
1000         case STATE_SLEEP:
1001         case STATE_STANDBY:
1002         case STATE_AWAKE:
1003                 retval = rt2400pci_set_state(rt2x00dev, state);
1004                 break;
1005         default:
1006                 retval = -ENOTSUPP;
1007                 break;
1008         }
1009
1010         return retval;
1011 }
1012
1013 /*
1014  * TX descriptor initialization
1015  */
1016 static void rt2400pci_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1017                                     struct data_desc *txd,
1018                                     struct txdata_entry_desc *desc,
1019                                     struct ieee80211_hdr *ieee80211hdr,
1020                                     unsigned int length,
1021                                     struct ieee80211_tx_control *control)
1022 {
1023         u32 word;
1024         u32 signal = 0;
1025         u32 service = 0;
1026         u32 length_high = 0;
1027         u32 length_low = 0;
1028
1029         /*
1030          * The PLCP values should be treated as if they
1031          * were BBP values.
1032          */
1033         rt2x00_set_field32(&signal, BBPCSR_VALUE, desc->signal);
1034         rt2x00_set_field32(&signal, BBPCSR_REGNUM, 5);
1035         rt2x00_set_field32(&signal, BBPCSR_BUSY, 1);
1036
1037         rt2x00_set_field32(&service, BBPCSR_VALUE, desc->service);
1038         rt2x00_set_field32(&service, BBPCSR_REGNUM, 6);
1039         rt2x00_set_field32(&service, BBPCSR_BUSY, 1);
1040
1041         rt2x00_set_field32(&length_high, BBPCSR_VALUE, desc->length_high);
1042         rt2x00_set_field32(&length_high, BBPCSR_REGNUM, 7);
1043         rt2x00_set_field32(&length_high, BBPCSR_BUSY, 1);
1044
1045         rt2x00_set_field32(&length_low, BBPCSR_VALUE, desc->length_low);
1046         rt2x00_set_field32(&length_low, BBPCSR_REGNUM, 8);
1047         rt2x00_set_field32(&length_low, BBPCSR_BUSY, 1);
1048
1049         /*
1050          * Start writing the descriptor words.
1051          */
1052         rt2x00_desc_read(txd, 2, &word);
1053         rt2x00_set_field32(&word, TXD_W2_DATABYTE_COUNT, length);
1054         rt2x00_desc_write(txd, 2, word);
1055
1056         rt2x00_desc_read(txd, 3, &word);
1057         rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, signal);
1058         rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, service);
1059         rt2x00_desc_write(txd, 3, word);
1060
1061         rt2x00_desc_read(txd, 4, &word);
1062         rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_LOW, length_low);
1063         rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_HIGH, length_high);
1064         rt2x00_desc_write(txd, 4, word);
1065
1066         rt2x00_desc_read(txd, 0, &word);
1067         rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1);
1068         rt2x00_set_field32(&word, TXD_W0_VALID, 1);
1069         rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1070                            test_bit(ENTRY_TXD_MORE_FRAG, &desc->flags));
1071         rt2x00_set_field32(&word, TXD_W0_ACK,
1072                            !(control->flags & IEEE80211_TXCTL_NO_ACK));
1073         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1074                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &desc->flags));
1075         rt2x00_set_field32(&word, TXD_W0_RTS,
1076                            test_bit(ENTRY_TXD_RTS_FRAME, &desc->flags));
1077         rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs);
1078         rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
1079                            !!(control->flags &
1080                               IEEE80211_TXCTL_LONG_RETRY_LIMIT));
1081         rt2x00_desc_write(txd, 0, word);
1082 }
1083
1084 /*
1085  * TX data initialization
1086  */
1087 static void rt2400pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1088                                     unsigned int queue)
1089 {
1090         u32 reg;
1091
1092         if (queue == IEEE80211_TX_QUEUE_BEACON) {
1093                 rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
1094                 if (!rt2x00_get_field32(reg, CSR14_BEACON_GEN)) {
1095                         rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 1);
1096                         rt2x00pci_register_write(rt2x00dev, CSR14, reg);
1097                 }
1098                 return;
1099         }
1100
1101         rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
1102         if (queue == IEEE80211_TX_QUEUE_DATA0)
1103                 rt2x00_set_field32(&reg, TXCSR0_KICK_PRIO, 1);
1104         else if (queue == IEEE80211_TX_QUEUE_DATA1)
1105                 rt2x00_set_field32(&reg, TXCSR0_KICK_TX, 1);
1106         else if (queue == IEEE80211_TX_QUEUE_AFTER_BEACON)
1107                 rt2x00_set_field32(&reg, TXCSR0_KICK_ATIM, 1);
1108         rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
1109 }
1110
1111 /*
1112  * RX control handlers
1113  */
1114 static void rt2400pci_fill_rxdone(struct data_entry *entry,
1115                                   struct rxdata_entry_desc *desc)
1116 {
1117         struct data_desc *rxd = entry->priv;
1118         u32 word0;
1119         u32 word2;
1120
1121         rt2x00_desc_read(rxd, 0, &word0);
1122         rt2x00_desc_read(rxd, 2, &word2);
1123
1124         desc->flags = 0;
1125         if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1126                 desc->flags |= RX_FLAG_FAILED_FCS_CRC;
1127         if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1128                 desc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1129
1130         /*
1131          * Obtain the status about this packet.
1132          */
1133         desc->signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL);
1134         desc->rssi = rt2x00_get_field32(word2, RXD_W2_RSSI) -
1135             entry->ring->rt2x00dev->rssi_offset;
1136         desc->ofdm = 0;
1137         desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1138 }
1139
1140 /*
1141  * Interrupt functions.
1142  */
1143 static void rt2400pci_txdone(struct rt2x00_dev *rt2x00dev, const int queue)
1144 {
1145         struct data_ring *ring = rt2x00lib_get_ring(rt2x00dev, queue);
1146         struct data_entry *entry;
1147         struct data_desc *txd;
1148         u32 word;
1149         int tx_status;
1150         int retry;
1151
1152         while (!rt2x00_ring_empty(ring)) {
1153                 entry = rt2x00_get_data_entry_done(ring);
1154                 txd = entry->priv;
1155                 rt2x00_desc_read(txd, 0, &word);
1156
1157                 if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
1158                     !rt2x00_get_field32(word, TXD_W0_VALID))
1159                         break;
1160
1161                 /*
1162                  * Obtain the status about this packet.
1163                  */
1164                 tx_status = rt2x00_get_field32(word, TXD_W0_RESULT);
1165                 retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT);
1166
1167                 rt2x00lib_txdone(entry, tx_status, retry);
1168
1169                 /*
1170                  * Make this entry available for reuse.
1171                  */
1172                 entry->flags = 0;
1173                 rt2x00_set_field32(&word, TXD_W0_VALID, 0);
1174                 rt2x00_desc_write(txd, 0, word);
1175                 rt2x00_ring_index_done_inc(ring);
1176         }
1177
1178         /*
1179          * If the data ring was full before the txdone handler
1180          * we must make sure the packet queue in the mac80211 stack
1181          * is reenabled when the txdone handler has finished.
1182          */
1183         entry = ring->entry;
1184         if (!rt2x00_ring_full(ring))
1185                 ieee80211_wake_queue(rt2x00dev->hw,
1186                                      entry->tx_status.control.queue);
1187 }
1188
1189 static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance)
1190 {
1191         struct rt2x00_dev *rt2x00dev = dev_instance;
1192         u32 reg;
1193
1194         /*
1195          * Get the interrupt sources & saved to local variable.
1196          * Write register value back to clear pending interrupts.
1197          */
1198         rt2x00pci_register_read(rt2x00dev, CSR7, &reg);
1199         rt2x00pci_register_write(rt2x00dev, CSR7, reg);
1200
1201         if (!reg)
1202                 return IRQ_NONE;
1203
1204         if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
1205                 return IRQ_HANDLED;
1206
1207         /*
1208          * Handle interrupts, walk through all bits
1209          * and run the tasks, the bits are checked in order of
1210          * priority.
1211          */
1212
1213         /*
1214          * 1 - Beacon timer expired interrupt.
1215          */
1216         if (rt2x00_get_field32(reg, CSR7_TBCN_EXPIRE))
1217                 rt2x00lib_beacondone(rt2x00dev);
1218
1219         /*
1220          * 2 - Rx ring done interrupt.
1221          */
1222         if (rt2x00_get_field32(reg, CSR7_RXDONE))
1223                 rt2x00pci_rxdone(rt2x00dev);
1224
1225         /*
1226          * 3 - Atim ring transmit done interrupt.
1227          */
1228         if (rt2x00_get_field32(reg, CSR7_TXDONE_ATIMRING))
1229                 rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_AFTER_BEACON);
1230
1231         /*
1232          * 4 - Priority ring transmit done interrupt.
1233          */
1234         if (rt2x00_get_field32(reg, CSR7_TXDONE_PRIORING))
1235                 rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_DATA0);
1236
1237         /*
1238          * 5 - Tx ring transmit done interrupt.
1239          */
1240         if (rt2x00_get_field32(reg, CSR7_TXDONE_TXRING))
1241                 rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_DATA1);
1242
1243         return IRQ_HANDLED;
1244 }
1245
1246 /*
1247  * Device probe functions.
1248  */
1249 static int rt2400pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1250 {
1251         struct eeprom_93cx6 eeprom;
1252         u32 reg;
1253         u16 word;
1254         u8 *mac;
1255
1256         rt2x00pci_register_read(rt2x00dev, CSR21, &reg);
1257
1258         eeprom.data = rt2x00dev;
1259         eeprom.register_read = rt2400pci_eepromregister_read;
1260         eeprom.register_write = rt2400pci_eepromregister_write;
1261         eeprom.width = rt2x00_get_field32(reg, CSR21_TYPE_93C46) ?
1262             PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
1263         eeprom.reg_data_in = 0;
1264         eeprom.reg_data_out = 0;
1265         eeprom.reg_data_clock = 0;
1266         eeprom.reg_chip_select = 0;
1267
1268         eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
1269                                EEPROM_SIZE / sizeof(u16));
1270
1271         /*
1272          * Start validation of the data that has been read.
1273          */
1274         mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1275         if (!is_valid_ether_addr(mac)) {
1276                 DECLARE_MAC_BUF(macbuf);
1277
1278                 random_ether_addr(mac);
1279                 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
1280         }
1281
1282         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1283         if (word == 0xffff) {
1284                 ERROR(rt2x00dev, "Invalid EEPROM data detected.\n");
1285                 return -EINVAL;
1286         }
1287
1288         return 0;
1289 }
1290
1291 static int rt2400pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
1292 {
1293         u32 reg;
1294         u16 value;
1295         u16 eeprom;
1296
1297         /*
1298          * Read EEPROM word for configuration.
1299          */
1300         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1301
1302         /*
1303          * Identify RF chipset.
1304          */
1305         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1306         rt2x00pci_register_read(rt2x00dev, CSR0, &reg);
1307         rt2x00_set_chip(rt2x00dev, RT2460, value, reg);
1308
1309         if (!rt2x00_rf(&rt2x00dev->chip, RF2420) &&
1310             !rt2x00_rf(&rt2x00dev->chip, RF2421)) {
1311                 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1312                 return -ENODEV;
1313         }
1314
1315         /*
1316          * Identify default antenna configuration.
1317          */
1318         rt2x00dev->hw->conf.antenna_sel_tx =
1319             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1320         rt2x00dev->hw->conf.antenna_sel_rx =
1321             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1322
1323         /*
1324          * Store led mode, for correct led behaviour.
1325          */
1326         rt2x00dev->led_mode =
1327             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1328
1329         /*
1330          * Detect if this device has an hardware controlled radio.
1331          */
1332 #ifdef CONFIG_RT2400PCI_RFKILL
1333         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
1334                 __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
1335 #endif /* CONFIG_RT2400PCI_RFKILL */
1336
1337         /*
1338          * Check if the BBP tuning should be enabled.
1339          */
1340         if (!rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_AGCVGC_TUNING))
1341                 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1342
1343         return 0;
1344 }
1345
1346 /*
1347  * RF value list for RF2420 & RF2421
1348  * Supports: 2.4 GHz
1349  */
1350 static const struct rf_channel rf_vals_bg[] = {
1351         { 1,  0x00022058, 0x000c1fda, 0x00000101, 0 },
1352         { 2,  0x00022058, 0x000c1fee, 0x00000101, 0 },
1353         { 3,  0x00022058, 0x000c2002, 0x00000101, 0 },
1354         { 4,  0x00022058, 0x000c2016, 0x00000101, 0 },
1355         { 5,  0x00022058, 0x000c202a, 0x00000101, 0 },
1356         { 6,  0x00022058, 0x000c203e, 0x00000101, 0 },
1357         { 7,  0x00022058, 0x000c2052, 0x00000101, 0 },
1358         { 8,  0x00022058, 0x000c2066, 0x00000101, 0 },
1359         { 9,  0x00022058, 0x000c207a, 0x00000101, 0 },
1360         { 10, 0x00022058, 0x000c208e, 0x00000101, 0 },
1361         { 11, 0x00022058, 0x000c20a2, 0x00000101, 0 },
1362         { 12, 0x00022058, 0x000c20b6, 0x00000101, 0 },
1363         { 13, 0x00022058, 0x000c20ca, 0x00000101, 0 },
1364         { 14, 0x00022058, 0x000c20fa, 0x00000101, 0 },
1365 };
1366
1367 static void rt2400pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1368 {
1369         struct hw_mode_spec *spec = &rt2x00dev->spec;
1370         u8 *txpower;
1371         unsigned int i;
1372
1373         /*
1374          * Initialize all hw fields.
1375          */
1376         rt2x00dev->hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
1377         rt2x00dev->hw->extra_tx_headroom = 0;
1378         rt2x00dev->hw->max_signal = MAX_SIGNAL;
1379         rt2x00dev->hw->max_rssi = MAX_RX_SSI;
1380         rt2x00dev->hw->queues = 2;
1381
1382         SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_pci(rt2x00dev)->dev);
1383         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1384                                 rt2x00_eeprom_addr(rt2x00dev,
1385                                                    EEPROM_MAC_ADDR_0));
1386
1387         /*
1388          * Convert tx_power array in eeprom.
1389          */
1390         txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1391         for (i = 0; i < 14; i++)
1392                 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1393
1394         /*
1395          * Initialize hw_mode information.
1396          */
1397         spec->num_modes = 1;
1398         spec->num_rates = 4;
1399         spec->tx_power_a = NULL;
1400         spec->tx_power_bg = txpower;
1401         spec->tx_power_default = DEFAULT_TXPOWER;
1402
1403         spec->num_channels = ARRAY_SIZE(rf_vals_bg);
1404         spec->channels = rf_vals_bg;
1405 }
1406
1407 static int rt2400pci_probe_hw(struct rt2x00_dev *rt2x00dev)
1408 {
1409         int retval;
1410
1411         /*
1412          * Allocate eeprom data.
1413          */
1414         retval = rt2400pci_validate_eeprom(rt2x00dev);
1415         if (retval)
1416                 return retval;
1417
1418         retval = rt2400pci_init_eeprom(rt2x00dev);
1419         if (retval)
1420                 return retval;
1421
1422         /*
1423          * Initialize hw specifications.
1424          */
1425         rt2400pci_probe_hw_mode(rt2x00dev);
1426
1427         /*
1428          * This device requires the beacon ring
1429          */
1430         __set_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags);
1431
1432         /*
1433          * Set the rssi offset.
1434          */
1435         rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1436
1437         return 0;
1438 }
1439
1440 /*
1441  * IEEE80211 stack callback functions.
1442  */
1443 static void rt2400pci_configure_filter(struct ieee80211_hw *hw,
1444                                        unsigned int changed_flags,
1445                                        unsigned int *total_flags,
1446                                        int mc_count,
1447                                        struct dev_addr_list *mc_list)
1448 {
1449         struct rt2x00_dev *rt2x00dev = hw->priv;
1450         struct interface *intf = &rt2x00dev->interface;
1451         u32 reg;
1452
1453         /*
1454          * Mask off any flags we are going to ignore from
1455          * the total_flags field.
1456          */
1457         *total_flags &=
1458             FIF_ALLMULTI |
1459             FIF_FCSFAIL |
1460             FIF_PLCPFAIL |
1461             FIF_CONTROL |
1462             FIF_OTHER_BSS |
1463             FIF_PROMISC_IN_BSS;
1464
1465         /*
1466          * Apply some rules to the filters:
1467          * - Some filters imply different filters to be set.
1468          * - Some things we can't filter out at all.
1469          * - Some filters are set based on interface type.
1470          */
1471         *total_flags |= FIF_ALLMULTI;
1472         if (*total_flags & FIF_OTHER_BSS ||
1473             *total_flags & FIF_PROMISC_IN_BSS)
1474                 *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS;
1475         if (is_interface_type(intf, IEEE80211_IF_TYPE_AP))
1476                 *total_flags |= FIF_PROMISC_IN_BSS;
1477
1478         /*
1479          * Check if there is any work left for us.
1480          */
1481         if (intf->filter == *total_flags)
1482                 return;
1483         intf->filter = *total_flags;
1484
1485         /*
1486          * Start configuration steps.
1487          * Note that the version error will always be dropped
1488          * since there is no filter for it at this time.
1489          */
1490         rt2x00pci_register_read(rt2x00dev, RXCSR0, &reg);
1491         rt2x00_set_field32(&reg, RXCSR0_DROP_CRC,
1492                            !(*total_flags & FIF_FCSFAIL));
1493         rt2x00_set_field32(&reg, RXCSR0_DROP_PHYSICAL,
1494                            !(*total_flags & FIF_PLCPFAIL));
1495         rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL,
1496                            !(*total_flags & FIF_CONTROL));
1497         rt2x00_set_field32(&reg, RXCSR0_DROP_NOT_TO_ME,
1498                            !(*total_flags & FIF_PROMISC_IN_BSS));
1499         rt2x00_set_field32(&reg, RXCSR0_DROP_TODS,
1500                            !(*total_flags & FIF_PROMISC_IN_BSS));
1501         rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 1);
1502         rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
1503 }
1504
1505 static int rt2400pci_set_retry_limit(struct ieee80211_hw *hw,
1506                                      u32 short_retry, u32 long_retry)
1507 {
1508         struct rt2x00_dev *rt2x00dev = hw->priv;
1509         u32 reg;
1510
1511         rt2x00pci_register_read(rt2x00dev, CSR11, &reg);
1512         rt2x00_set_field32(&reg, CSR11_LONG_RETRY, long_retry);
1513         rt2x00_set_field32(&reg, CSR11_SHORT_RETRY, short_retry);
1514         rt2x00pci_register_write(rt2x00dev, CSR11, reg);
1515
1516         return 0;
1517 }
1518
1519 static int rt2400pci_conf_tx(struct ieee80211_hw *hw,
1520                              int queue,
1521                              const struct ieee80211_tx_queue_params *params)
1522 {
1523         struct rt2x00_dev *rt2x00dev = hw->priv;
1524
1525         /*
1526          * We don't support variating cw_min and cw_max variables
1527          * per queue. So by default we only configure the TX queue,
1528          * and ignore all other configurations.
1529          */
1530         if (queue != IEEE80211_TX_QUEUE_DATA0)
1531                 return -EINVAL;
1532
1533         if (rt2x00mac_conf_tx(hw, queue, params))
1534                 return -EINVAL;
1535
1536         /*
1537          * Write configuration to register.
1538          */
1539         rt2400pci_config_cw(rt2x00dev, &rt2x00dev->tx->tx_params);
1540
1541         return 0;
1542 }
1543
1544 static u64 rt2400pci_get_tsf(struct ieee80211_hw *hw)
1545 {
1546         struct rt2x00_dev *rt2x00dev = hw->priv;
1547         u64 tsf;
1548         u32 reg;
1549
1550         rt2x00pci_register_read(rt2x00dev, CSR17, &reg);
1551         tsf = (u64) rt2x00_get_field32(reg, CSR17_HIGH_TSFTIMER) << 32;
1552         rt2x00pci_register_read(rt2x00dev, CSR16, &reg);
1553         tsf |= rt2x00_get_field32(reg, CSR16_LOW_TSFTIMER);
1554
1555         return tsf;
1556 }
1557
1558 static void rt2400pci_reset_tsf(struct ieee80211_hw *hw)
1559 {
1560         struct rt2x00_dev *rt2x00dev = hw->priv;
1561
1562         rt2x00pci_register_write(rt2x00dev, CSR16, 0);
1563         rt2x00pci_register_write(rt2x00dev, CSR17, 0);
1564 }
1565
1566 static int rt2400pci_tx_last_beacon(struct ieee80211_hw *hw)
1567 {
1568         struct rt2x00_dev *rt2x00dev = hw->priv;
1569         u32 reg;
1570
1571         rt2x00pci_register_read(rt2x00dev, CSR15, &reg);
1572         return rt2x00_get_field32(reg, CSR15_BEACON_SENT);
1573 }
1574
1575 static const struct ieee80211_ops rt2400pci_mac80211_ops = {
1576         .tx                     = rt2x00mac_tx,
1577         .start                  = rt2x00mac_start,
1578         .stop                   = rt2x00mac_stop,
1579         .add_interface          = rt2x00mac_add_interface,
1580         .remove_interface       = rt2x00mac_remove_interface,
1581         .config                 = rt2x00mac_config,
1582         .config_interface       = rt2x00mac_config_interface,
1583         .configure_filter       = rt2400pci_configure_filter,
1584         .get_stats              = rt2x00mac_get_stats,
1585         .set_retry_limit        = rt2400pci_set_retry_limit,
1586         .erp_ie_changed         = rt2x00mac_erp_ie_changed,
1587         .conf_tx                = rt2400pci_conf_tx,
1588         .get_tx_stats           = rt2x00mac_get_tx_stats,
1589         .get_tsf                = rt2400pci_get_tsf,
1590         .reset_tsf              = rt2400pci_reset_tsf,
1591         .beacon_update          = rt2x00pci_beacon_update,
1592         .tx_last_beacon         = rt2400pci_tx_last_beacon,
1593 };
1594
1595 static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {
1596         .irq_handler            = rt2400pci_interrupt,
1597         .probe_hw               = rt2400pci_probe_hw,
1598         .initialize             = rt2x00pci_initialize,
1599         .uninitialize           = rt2x00pci_uninitialize,
1600         .set_device_state       = rt2400pci_set_device_state,
1601         .rfkill_poll            = rt2400pci_rfkill_poll,
1602         .link_stats             = rt2400pci_link_stats,
1603         .reset_tuner            = rt2400pci_reset_tuner,
1604         .link_tuner             = rt2400pci_link_tuner,
1605         .write_tx_desc          = rt2400pci_write_tx_desc,
1606         .write_tx_data          = rt2x00pci_write_tx_data,
1607         .kick_tx_queue          = rt2400pci_kick_tx_queue,
1608         .fill_rxdone            = rt2400pci_fill_rxdone,
1609         .config_mac_addr        = rt2400pci_config_mac_addr,
1610         .config_bssid           = rt2400pci_config_bssid,
1611         .config_type            = rt2400pci_config_type,
1612         .config_preamble        = rt2400pci_config_preamble,
1613         .config                 = rt2400pci_config,
1614 };
1615
1616 static const struct rt2x00_ops rt2400pci_ops = {
1617         .name           = DRV_NAME,
1618         .rxd_size       = RXD_DESC_SIZE,
1619         .txd_size       = TXD_DESC_SIZE,
1620         .eeprom_size    = EEPROM_SIZE,
1621         .rf_size        = RF_SIZE,
1622         .lib            = &rt2400pci_rt2x00_ops,
1623         .hw             = &rt2400pci_mac80211_ops,
1624 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1625         .debugfs        = &rt2400pci_rt2x00debug,
1626 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1627 };
1628
1629 /*
1630  * RT2400pci module information.
1631  */
1632 static struct pci_device_id rt2400pci_device_table[] = {
1633         { PCI_DEVICE(0x1814, 0x0101), PCI_DEVICE_DATA(&rt2400pci_ops) },
1634         { 0, }
1635 };
1636
1637 MODULE_AUTHOR(DRV_PROJECT);
1638 MODULE_VERSION(DRV_VERSION);
1639 MODULE_DESCRIPTION("Ralink RT2400 PCI & PCMCIA Wireless LAN driver.");
1640 MODULE_SUPPORTED_DEVICE("Ralink RT2460 PCI & PCMCIA chipset based cards");
1641 MODULE_DEVICE_TABLE(pci, rt2400pci_device_table);
1642 MODULE_LICENSE("GPL");
1643
1644 static struct pci_driver rt2400pci_driver = {
1645         .name           = DRV_NAME,
1646         .id_table       = rt2400pci_device_table,
1647         .probe          = rt2x00pci_probe,
1648         .remove         = __devexit_p(rt2x00pci_remove),
1649         .suspend        = rt2x00pci_suspend,
1650         .resume         = rt2x00pci_resume,
1651 };
1652
1653 static int __init rt2400pci_init(void)
1654 {
1655         return pci_register_driver(&rt2400pci_driver);
1656 }
1657
1658 static void __exit rt2400pci_exit(void)
1659 {
1660         pci_unregister_driver(&rt2400pci_driver);
1661 }
1662
1663 module_init(rt2400pci_init);
1664 module_exit(rt2400pci_exit);