drivers/net/wireless/rt2x00/rt73usb.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: rt73usb
  23         Abstract: rt73usb device specific routines.
  24         Supported chipsets: rt2571W & rt2671.
  25  */
  26
  27 /*
  28  * Set enviroment defines for rt2x00.h
  29  */
  30 #define DRV_NAME "rt73usb"
  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/usb.h>
  38
  39 #include "rt2x00.h"
  40 #include "rt2x00usb.h"
  41 #include "rt73usb.h"
  42
  43 /*
  44  * Register access.
  45  * All access to the CSR registers will go through the methods
  46  * rt73usb_register_read and rt73usb_register_write.
  47  * BBP and RF register require indirect register access,
  48  * and use the CSR registers BBPCSR and RFCSR to achieve this.
  49  * These indirect registers work with busy bits,
  50  * and we will try maximal REGISTER_BUSY_COUNT times to access
  51  * the register while taking a REGISTER_BUSY_DELAY us delay
  52  * between each attampt. When the busy bit is still set at that time,
  53  * the access attempt is considered to have failed,
  54  * and we will print an error.
  55  */
  56 static inline void rt73usb_register_read(const struct rt2x00_dev *rt2x00dev,
  57                                          const unsigned int offset, u32 *value)
  58 {
  59         __le32 reg;
  60         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
  61                                       USB_VENDOR_REQUEST_IN, offset,
  62                                       &reg, sizeof(u32), REGISTER_TIMEOUT);
  63         *value = le32_to_cpu(reg);
  64 }
  65
  66 static inline void rt73usb_register_multiread(const struct rt2x00_dev
  67                                               *rt2x00dev,
  68                                               const unsigned int offset,
  69                                               void *value, const u32 length)
  70 {
  71         int timeout = REGISTER_TIMEOUT * (length / sizeof(u32));
  72         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
  73                                       USB_VENDOR_REQUEST_IN, offset,
  74                                       value, length, timeout);
  75 }
  76
  77 static inline void rt73usb_register_write(const struct rt2x00_dev *rt2x00dev,
  78                                           const unsigned int offset, u32 value)
  79 {
  80         __le32 reg = cpu_to_le32(value);
  81         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
  82                                       USB_VENDOR_REQUEST_OUT, offset,
  83                                       &reg, sizeof(u32), REGISTER_TIMEOUT);
  84 }
  85
  86 static inline void rt73usb_register_multiwrite(const struct rt2x00_dev
  87                                                *rt2x00dev,
  88                                                const unsigned int offset,
  89                                                void *value, const u32 length)
  90 {
  91         int timeout = REGISTER_TIMEOUT * (length / sizeof(u32));
  92         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
  93                                       USB_VENDOR_REQUEST_OUT, offset,
  94                                       value, length, timeout);
  95 }
  96
  97 static u32 rt73usb_bbp_check(const struct rt2x00_dev *rt2x00dev)
  98 {
  99         u32 reg;
 100         unsigned int i;
 101
 102         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 103                 rt73usb_register_read(rt2x00dev, PHY_CSR3, &reg);
 104                 if (!rt2x00_get_field32(reg, PHY_CSR3_BUSY))
 105                         break;
 106                 udelay(REGISTER_BUSY_DELAY);
 107         }
 108
 109         return reg;
 110 }
 111
 112 static void rt73usb_bbp_write(const struct rt2x00_dev *rt2x00dev,
 113                               const unsigned int word, const u8 value)
 114 {
 115         u32 reg;
 116
 117         /*
 118          * Wait until the BBP becomes ready.
 119          */
 120         reg = rt73usb_bbp_check(rt2x00dev);
 121         if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
 122                 ERROR(rt2x00dev, "PHY_CSR3 register busy. Write failed.\n");
 123                 return;
 124         }
 125
 126         /*
 127          * Write the data into the BBP.
 128          */
 129         reg = 0;
 130         rt2x00_set_field32(&reg, PHY_CSR3_VALUE, value);
 131         rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, word);
 132         rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
 133         rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 0);
 134
 135         rt73usb_register_write(rt2x00dev, PHY_CSR3, reg);
 136 }
 137
 138 static void rt73usb_bbp_read(const struct rt2x00_dev *rt2x00dev,
 139                              const unsigned int word, u8 *value)
 140 {
 141         u32 reg;
 142
 143         /*
 144          * Wait until the BBP becomes ready.
 145          */
 146         reg = rt73usb_bbp_check(rt2x00dev);
 147         if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
 148                 ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
 149                 return;
 150         }
 151
 152         /*
 153          * Write the request into the BBP.
 154          */
 155         reg = 0;
 156         rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, word);
 157         rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
 158         rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 1);
 159
 160         rt73usb_register_write(rt2x00dev, PHY_CSR3, reg);
 161
 162         /*
 163          * Wait until the BBP becomes ready.
 164          */
 165         reg = rt73usb_bbp_check(rt2x00dev);
 166         if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
 167                 ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
 168                 *value = 0xff;
 169                 return;
 170         }
 171
 172         *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
 173 }
 174
 175 static void rt73usb_rf_write(const struct rt2x00_dev *rt2x00dev,
 176                              const unsigned int word, const u32 value)
 177 {
 178         u32 reg;
 179         unsigned int i;
 180
 181         if (!word)
 182                 return;
 183
 184         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 185                 rt73usb_register_read(rt2x00dev, PHY_CSR4, &reg);
 186                 if (!rt2x00_get_field32(reg, PHY_CSR4_BUSY))
 187                         goto rf_write;
 188                 udelay(REGISTER_BUSY_DELAY);
 189         }
 190
 191         ERROR(rt2x00dev, "PHY_CSR4 register busy. Write failed.\n");
 192         return;
 193
 194 rf_write:
 195         reg = 0;
 196         rt2x00_set_field32(&reg, PHY_CSR4_VALUE, value);
 197
 198         if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
 199             rt2x00_rf(&rt2x00dev->chip, RF2527))
 200                 rt2x00_set_field32(&reg, PHY_CSR4_NUMBER_OF_BITS, 21);
 201         else
 202                 rt2x00_set_field32(&reg, PHY_CSR4_NUMBER_OF_BITS, 20);
 203
 204         rt2x00_set_field32(&reg, PHY_CSR4_IF_SELECT, 0);
 205         rt2x00_set_field32(&reg, PHY_CSR4_BUSY, 1);
 206
 207         rt73usb_register_write(rt2x00dev, PHY_CSR4, reg);
 208         rt2x00_rf_write(rt2x00dev, word, value);
 209 }
 210
 211 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 212 #define CSR_OFFSET(__word)      ( CSR_REG_BASE + ((__word) * sizeof(u32)) )
 213
 214 static void rt73usb_read_csr(const struct rt2x00_dev *rt2x00dev,
 215                              const unsigned int word, u32 *data)
 216 {
 217         rt73usb_register_read(rt2x00dev, CSR_OFFSET(word), data);
 218 }
 219
 220 static void rt73usb_write_csr(const struct rt2x00_dev *rt2x00dev,
 221                               const unsigned int word, u32 data)
 222 {
 223         rt73usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
 224 }
 225
 226 static const struct rt2x00debug rt73usb_rt2x00debug = {
 227         .owner  = THIS_MODULE,
 228         .csr    = {
 229                 .read           = rt73usb_read_csr,
 230                 .write          = rt73usb_write_csr,
 231                 .word_size      = sizeof(u32),
 232                 .word_count     = CSR_REG_SIZE / sizeof(u32),
 233         },
 234         .eeprom = {
 235                 .read           = rt2x00_eeprom_read,
 236                 .write          = rt2x00_eeprom_write,
 237                 .word_size      = sizeof(u16),
 238                 .word_count     = EEPROM_SIZE / sizeof(u16),
 239         },
 240         .bbp    = {
 241                 .read           = rt73usb_bbp_read,
 242                 .write          = rt73usb_bbp_write,
 243                 .word_size      = sizeof(u8),
 244                 .word_count     = BBP_SIZE / sizeof(u8),
 245         },
 246         .rf     = {
 247                 .read           = rt2x00_rf_read,
 248                 .write          = rt73usb_rf_write,
 249                 .word_size      = sizeof(u32),
 250                 .word_count     = RF_SIZE / sizeof(u32),
 251         },
 252 };
 253 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 254
 255 /*
 256  * Configuration handlers.
 257  */
 258 static void rt73usb_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr)
 259 {
 260         __le32 reg[2];
 261         u32 tmp;
 262
 263         memset(&reg, 0, sizeof(reg));
 264         memcpy(&reg, addr, ETH_ALEN);
 265
 266         tmp = le32_to_cpu(reg[1]);
 267         rt2x00_set_field32(&tmp, MAC_CSR3_UNICAST_TO_ME_MASK, 0xff);
 268         reg[1] = cpu_to_le32(tmp);
 269
 270         /*
 271          * The MAC address is passed to us as an array of bytes,
 272          * that array is little endian, so no need for byte ordering.
 273          */
 274         rt73usb_register_multiwrite(rt2x00dev, MAC_CSR2, &reg, sizeof(reg));
 275 }
 276
 277 static void rt73usb_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
 278 {
 279         __le32 reg[2];
 280         u32 tmp;
 281
 282         memset(&reg, 0, sizeof(reg));
 283         memcpy(&reg, bssid, ETH_ALEN);
 284
 285         tmp = le32_to_cpu(reg[1]);
 286         rt2x00_set_field32(&tmp, MAC_CSR5_BSS_ID_MASK, 3);
 287         reg[1] = cpu_to_le32(tmp);
 288
 289         /*
 290          * The BSSID is passed to us as an array of bytes,
 291          * that array is little endian, so no need for byte ordering.
 292          */
 293         rt73usb_register_multiwrite(rt2x00dev, MAC_CSR4, &reg, sizeof(reg));
 294 }
 295
 296 static void rt73usb_config_packet_filter(struct rt2x00_dev *rt2x00dev,
 297                                          const unsigned int filter)
 298 {
 299         int promisc = !!(filter & IFF_PROMISC);
 300         int multicast = !!(filter & IFF_MULTICAST);
 301         int broadcast = !!(filter & IFF_BROADCAST);
 302         u32 reg;
 303
 304         rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 305         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME, !promisc);
 306         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_MULTICAST, !multicast);
 307         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_BORADCAST, !broadcast);
 308         rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 309 }
 310
 311 static void rt73usb_config_type(struct rt2x00_dev *rt2x00dev, const int type)
 312 {
 313         u32 reg;
 314
 315         /*
 316          * Clear current synchronisation setup.
 317          * For the Beacon base registers we only need to clear
 318          * the first byte since that byte contains the VALID and OWNER
 319          * bits which (when set to 0) will invalidate the entire beacon.
 320          */
 321         rt73usb_register_write(rt2x00dev, TXRX_CSR9, 0);
 322         rt73usb_register_write(rt2x00dev, HW_BEACON_BASE0, 0);
 323         rt73usb_register_write(rt2x00dev, HW_BEACON_BASE1, 0);
 324         rt73usb_register_write(rt2x00dev, HW_BEACON_BASE2, 0);
 325         rt73usb_register_write(rt2x00dev, HW_BEACON_BASE3, 0);
 326
 327         /*
 328          * Apply hardware packet filter.
 329          */
 330         rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 331
 332         if (!is_monitor_present(&rt2x00dev->interface) &&
 333             (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_STA))
 334                 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS, 1);
 335         else
 336                 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS, 0);
 337
 338         /*
 339          * If there is a non-monitor interface present
 340          * the packet should be strict (even if a monitor interface is present!).
 341          * When there is only 1 interface present which is in monitor mode
 342          * we should start accepting _all_ frames.
 343          */
 344         if (is_interface_present(&rt2x00dev->interface)) {
 345                 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC, 1);
 346                 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 1);
 347                 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 1);
 348                 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
 349                 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS, 1);
 350         } else if (is_monitor_present(&rt2x00dev->interface)) {
 351                 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC, 0);
 352                 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL, 0);
 353                 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL, 0);
 354                 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 0);
 355                 rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS, 0);
 356         }
 357
 358         rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 359
 360         /*
 361          * Enable synchronisation.
 362          */
 363         rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
 364         if (is_interface_present(&rt2x00dev->interface)) {
 365                 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
 366                 rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
 367         }
 368
 369         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
 370         if (type == IEEE80211_IF_TYPE_IBSS || type == IEEE80211_IF_TYPE_AP)
 371                 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 2);
 372         else if (type == IEEE80211_IF_TYPE_STA)
 373                 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 1);
 374         else if (is_monitor_present(&rt2x00dev->interface) &&
 375                  !is_interface_present(&rt2x00dev->interface))
 376                 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 0);
 377
 378         rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
 379 }
 380
 381 static void rt73usb_config_rate(struct rt2x00_dev *rt2x00dev, const int rate)
 382 {
 383         struct ieee80211_conf *conf = &rt2x00dev->hw->conf;
 384         u32 reg;
 385         u32 value;
 386         u32 preamble;
 387
 388         if (DEVICE_GET_RATE_FIELD(rate, PREAMBLE))
 389                 preamble = SHORT_PREAMBLE;
 390         else
 391                 preamble = PREAMBLE;
 392
 393         reg = DEVICE_GET_RATE_FIELD(rate, RATEMASK) & DEV_BASIC_RATEMASK;
 394
 395         rt73usb_register_write(rt2x00dev, TXRX_CSR5, reg);
 396
 397         rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 398         value = ((conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) ?
 399                  SHORT_DIFS : DIFS) +
 400             PLCP + preamble + get_duration(ACK_SIZE, 10);
 401         rt2x00_set_field32(&reg, TXRX_CSR0_RX_ACK_TIMEOUT, value);
 402         rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 403
 404         rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
 405         if (preamble == SHORT_PREAMBLE)
 406                 rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE, 1);
 407         else
 408                 rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE, 0);
 409         rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
 410 }
 411
 412 static void rt73usb_config_phymode(struct rt2x00_dev *rt2x00dev,
 413                                    const int phymode)
 414 {
 415         struct ieee80211_hw_mode *mode;
 416         struct ieee80211_rate *rate;
 417
 418         if (phymode == MODE_IEEE80211A)
 419                 rt2x00dev->curr_hwmode = HWMODE_A;
 420         else if (phymode == MODE_IEEE80211B)
 421                 rt2x00dev->curr_hwmode = HWMODE_B;
 422         else
 423                 rt2x00dev->curr_hwmode = HWMODE_G;
 424
 425         mode = &rt2x00dev->hwmodes[rt2x00dev->curr_hwmode];
 426         rate = &mode->rates[mode->num_rates - 1];
 427
 428         rt73usb_config_rate(rt2x00dev, rate->val2);
 429 }
 430
 431 static void rt73usb_config_lock_channel(struct rt2x00_dev *rt2x00dev,
 432                                         struct rf_channel *rf,
 433                                         const int txpower)
 434 {
 435         u8 r3;
 436         u8 r94;
 437         u8 smart;
 438
 439         rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 440         rt2x00_set_field32(&rf->rf4, RF4_FREQ_OFFSET, rt2x00dev->freq_offset);
 441
 442         smart = !(rt2x00_rf(&rt2x00dev->chip, RF5225) ||
 443                   rt2x00_rf(&rt2x00dev->chip, RF2527));
 444
 445         rt73usb_bbp_read(rt2x00dev, 3, &r3);
 446         rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, smart);
 447         rt73usb_bbp_write(rt2x00dev, 3, r3);
 448
 449         r94 = 6;
 450         if (txpower > MAX_TXPOWER && txpower <= (MAX_TXPOWER + r94))
 451                 r94 += txpower - MAX_TXPOWER;
 452         else if (txpower < MIN_TXPOWER && txpower >= (MIN_TXPOWER - r94))
 453                 r94 += txpower;
 454         rt73usb_bbp_write(rt2x00dev, 94, r94);
 455
 456         rt73usb_rf_write(rt2x00dev, 1, rf->rf1);
 457         rt73usb_rf_write(rt2x00dev, 2, rf->rf2);
 458         rt73usb_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
 459         rt73usb_rf_write(rt2x00dev, 4, rf->rf4);
 460
 461         rt73usb_rf_write(rt2x00dev, 1, rf->rf1);
 462         rt73usb_rf_write(rt2x00dev, 2, rf->rf2);
 463         rt73usb_rf_write(rt2x00dev, 3, rf->rf3 | 0x00000004);
 464         rt73usb_rf_write(rt2x00dev, 4, rf->rf4);
 465
 466         rt73usb_rf_write(rt2x00dev, 1, rf->rf1);
 467         rt73usb_rf_write(rt2x00dev, 2, rf->rf2);
 468         rt73usb_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
 469         rt73usb_rf_write(rt2x00dev, 4, rf->rf4);
 470
 471         udelay(10);
 472 }
 473
 474 static void rt73usb_config_channel(struct rt2x00_dev *rt2x00dev,
 475                                    const int index, const int channel,
 476                                    const int txpower)
 477 {
 478         struct rf_channel rf;
 479
 480         /*
 481          * Fill rf_reg structure.
 482          */
 483         memcpy(&rf, &rt2x00dev->spec.channels[index], sizeof(rf));
 484
 485         rt73usb_config_lock_channel(rt2x00dev, &rf, txpower);
 486 }
 487
 488 static void rt73usb_config_txpower(struct rt2x00_dev *rt2x00dev,
 489                                    const int txpower)
 490 {
 491         struct rf_channel rf;
 492
 493         rt2x00_rf_read(rt2x00dev, 1, &rf.rf1);
 494         rt2x00_rf_read(rt2x00dev, 2, &rf.rf2);
 495         rt2x00_rf_read(rt2x00dev, 3, &rf.rf3);
 496         rt2x00_rf_read(rt2x00dev, 4, &rf.rf4);
 497
 498         rt73usb_config_lock_channel(rt2x00dev, &rf, txpower);
 499 }
 500
 501 static void rt73usb_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
 502                                       const int antenna_tx,
 503                                       const int antenna_rx)
 504 {
 505         u8 r3;
 506         u8 r4;
 507         u8 r77;
 508
 509         rt73usb_bbp_read(rt2x00dev, 3, &r3);
 510         rt73usb_bbp_read(rt2x00dev, 4, &r4);
 511         rt73usb_bbp_read(rt2x00dev, 77, &r77);
 512
 513         rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
 514
 515         switch (antenna_rx) {
 516         case ANTENNA_SW_DIVERSITY:
 517         case ANTENNA_HW_DIVERSITY:
 518                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
 519                 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
 520                                   !!(rt2x00dev->curr_hwmode != HWMODE_A));
 521                 break;
 522         case ANTENNA_A:
 523                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
 524                 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
 525
 526                 if (rt2x00dev->curr_hwmode == HWMODE_A)
 527                         rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
 528                 else
 529                         rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
 530                 break;
 531         case ANTENNA_B:
 532                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
 533                 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
 534
 535                 if (rt2x00dev->curr_hwmode == HWMODE_A)
 536                         rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
 537                 else
 538                         rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
 539                 break;
 540         }
 541
 542         rt73usb_bbp_write(rt2x00dev, 77, r77);
 543         rt73usb_bbp_write(rt2x00dev, 3, r3);
 544         rt73usb_bbp_write(rt2x00dev, 4, r4);
 545 }
 546
 547 static void rt73usb_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
 548                                       const int antenna_tx,
 549                                       const int antenna_rx)
 550 {
 551         u8 r3;
 552         u8 r4;
 553         u8 r77;
 554
 555         rt73usb_bbp_read(rt2x00dev, 3, &r3);
 556         rt73usb_bbp_read(rt2x00dev, 4, &r4);
 557         rt73usb_bbp_read(rt2x00dev, 77, &r77);
 558
 559         rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
 560         rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
 561                           !test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
 562
 563         switch (antenna_rx) {
 564         case ANTENNA_SW_DIVERSITY:
 565         case ANTENNA_HW_DIVERSITY:
 566                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
 567                 break;
 568         case ANTENNA_A:
 569                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
 570                 rt2x00_set_field8(&r77, BBP_R77_PAIR, 3);
 571                 break;
 572         case ANTENNA_B:
 573                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
 574                 rt2x00_set_field8(&r77, BBP_R77_PAIR, 0);
 575                 break;
 576         }
 577
 578         rt73usb_bbp_write(rt2x00dev, 77, r77);
 579         rt73usb_bbp_write(rt2x00dev, 3, r3);
 580         rt73usb_bbp_write(rt2x00dev, 4, r4);
 581 }
 582
 583 struct antenna_sel {
 584         u8 word;
 585         /*
 586          * value[0] -> non-LNA
 587          * value[1] -> LNA
 588          */
 589         u8 value[2];
 590 };
 591
 592 static const struct antenna_sel antenna_sel_a[] = {
 593         { 96,  { 0x58, 0x78 } },
 594         { 104, { 0x38, 0x48 } },
 595         { 75,  { 0xfe, 0x80 } },
 596         { 86,  { 0xfe, 0x80 } },
 597         { 88,  { 0xfe, 0x80 } },
 598         { 35,  { 0x60, 0x60 } },
 599         { 97,  { 0x58, 0x58 } },
 600         { 98,  { 0x58, 0x58 } },
 601 };
 602
 603 static const struct antenna_sel antenna_sel_bg[] = {
 604         { 96,  { 0x48, 0x68 } },
 605         { 104, { 0x2c, 0x3c } },
 606         { 75,  { 0xfe, 0x80 } },
 607         { 86,  { 0xfe, 0x80 } },
 608         { 88,  { 0xfe, 0x80 } },
 609         { 35,  { 0x50, 0x50 } },
 610         { 97,  { 0x48, 0x48 } },
 611         { 98,  { 0x48, 0x48 } },
 612 };
 613
 614 static void rt73usb_config_antenna(struct rt2x00_dev *rt2x00dev,
 615                                    const int antenna_tx, const int antenna_rx)
 616 {
 617         const struct antenna_sel *sel;
 618         unsigned int lna;
 619         unsigned int i;
 620         u32 reg;
 621
 622         rt73usb_register_read(rt2x00dev, PHY_CSR0, &reg);
 623
 624         if (rt2x00dev->curr_hwmode == HWMODE_A) {
 625                 sel = antenna_sel_a;
 626                 lna = test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
 627
 628                 rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG, 0);
 629                 rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A, 1);
 630         } else {
 631                 sel = antenna_sel_bg;
 632                 lna = test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
 633
 634                 rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG, 1);
 635                 rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A, 0);
 636         }
 637
 638         for (i = 0; i < ARRAY_SIZE(antenna_sel_a); i++)
 639                 rt73usb_bbp_write(rt2x00dev, sel[i].word, sel[i].value[lna]);
 640
 641         rt73usb_register_write(rt2x00dev, PHY_CSR0, reg);
 642
 643         if (rt2x00_rf(&rt2x00dev->chip, RF5226) ||
 644             rt2x00_rf(&rt2x00dev->chip, RF5225))
 645                 rt73usb_config_antenna_5x(rt2x00dev, antenna_tx, antenna_rx);
 646         else if (rt2x00_rf(&rt2x00dev->chip, RF2528) ||
 647                  rt2x00_rf(&rt2x00dev->chip, RF2527))
 648                 rt73usb_config_antenna_2x(rt2x00dev, antenna_tx, antenna_rx);
 649 }
 650
 651 static void rt73usb_config_duration(struct rt2x00_dev *rt2x00dev,
 652                                     const int short_slot_time,
 653                                     const int beacon_int)
 654 {
 655         u32 reg;
 656
 657         rt73usb_register_read(rt2x00dev, MAC_CSR9, &reg);
 658         rt2x00_set_field32(&reg, MAC_CSR9_SLOT_TIME,
 659                            short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME);
 660         rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
 661
 662         rt73usb_register_read(rt2x00dev, MAC_CSR8, &reg);
 663         rt2x00_set_field32(&reg, MAC_CSR8_SIFS, SIFS);
 664         rt2x00_set_field32(&reg, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
 665         rt2x00_set_field32(&reg, MAC_CSR8_EIFS, EIFS);
 666         rt73usb_register_write(rt2x00dev, MAC_CSR8, reg);
 667
 668         rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 669         rt2x00_set_field32(&reg, TXRX_CSR0_TSF_OFFSET, IEEE80211_HEADER);
 670         rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 671
 672         rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
 673         rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_ENABLE, 1);
 674         rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
 675
 676         rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
 677         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_INTERVAL, beacon_int * 16);
 678         rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
 679 }
 680
 681 static void rt73usb_config(struct rt2x00_dev *rt2x00dev,
 682                            const unsigned int flags,
 683                            struct ieee80211_conf *conf)
 684 {
 685         int short_slot_time = conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME;
 686
 687         if (flags & CONFIG_UPDATE_PHYMODE)
 688                 rt73usb_config_phymode(rt2x00dev, conf->phymode);
 689         if (flags & CONFIG_UPDATE_CHANNEL)
 690                 rt73usb_config_channel(rt2x00dev, conf->channel_val,
 691                                        conf->channel, conf->power_level);
 692         if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
 693                 rt73usb_config_txpower(rt2x00dev, conf->power_level);
 694         if (flags & CONFIG_UPDATE_ANTENNA)
 695                 rt73usb_config_antenna(rt2x00dev, conf->antenna_sel_tx,
 696                                        conf->antenna_sel_rx);
 697         if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
 698                 rt73usb_config_duration(rt2x00dev, short_slot_time,
 699                                         conf->beacon_int);
 700 }
 701
 702 /*
 703  * LED functions.
 704  */
 705 static void rt73usb_enable_led(struct rt2x00_dev *rt2x00dev)
 706 {
 707         u32 reg;
 708
 709         rt73usb_register_read(rt2x00dev, MAC_CSR14, &reg);
 710         rt2x00_set_field32(&reg, MAC_CSR14_ON_PERIOD, 70);
 711         rt2x00_set_field32(&reg, MAC_CSR14_OFF_PERIOD, 30);
 712         rt73usb_register_write(rt2x00dev, MAC_CSR14, reg);
 713
 714         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_RADIO_STATUS, 1);
 715         if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A)
 716                 rt2x00_set_field16(&rt2x00dev->led_reg,
 717                                    MCU_LEDCS_LINK_A_STATUS, 1);
 718         else
 719                 rt2x00_set_field16(&rt2x00dev->led_reg,
 720                                    MCU_LEDCS_LINK_BG_STATUS, 1);
 721
 722         rt2x00usb_vendor_request_sw(rt2x00dev, USB_LED_CONTROL, 0x0000,
 723                                     rt2x00dev->led_reg, REGISTER_TIMEOUT);
 724 }
 725
 726 static void rt73usb_disable_led(struct rt2x00_dev *rt2x00dev)
 727 {
 728         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_RADIO_STATUS, 0);
 729         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LINK_BG_STATUS, 0);
 730         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LINK_A_STATUS, 0);
 731
 732         rt2x00usb_vendor_request_sw(rt2x00dev, USB_LED_CONTROL, 0x0000,
 733                                     rt2x00dev->led_reg, REGISTER_TIMEOUT);
 734 }
 735
 736 static void rt73usb_activity_led(struct rt2x00_dev *rt2x00dev, int rssi)
 737 {
 738         u32 led;
 739
 740         if (rt2x00dev->led_mode != LED_MODE_SIGNAL_STRENGTH)
 741                 return;
 742
 743         /*
 744          * Led handling requires a positive value for the rssi,
 745          * to do that correctly we need to add the correction.
 746          */
 747         rssi += rt2x00dev->rssi_offset;
 748
 749         if (rssi <= 30)
 750                 led = 0;
 751         else if (rssi <= 39)
 752                 led = 1;
 753         else if (rssi <= 49)
 754                 led = 2;
 755         else if (rssi <= 53)
 756                 led = 3;
 757         else if (rssi <= 63)
 758                 led = 4;
 759         else
 760                 led = 5;
 761
 762         rt2x00usb_vendor_request_sw(rt2x00dev, USB_LED_CONTROL, led,
 763                                     rt2x00dev->led_reg, REGISTER_TIMEOUT);
 764 }
 765
 766 /*
 767  * Link tuning
 768  */
 769 static void rt73usb_link_stats(struct rt2x00_dev *rt2x00dev)
 770 {
 771         u32 reg;
 772
 773         /*
 774          * Update FCS error count from register.
 775          */
 776         rt73usb_register_read(rt2x00dev, STA_CSR0, &reg);
 777         rt2x00dev->link.rx_failed = rt2x00_get_field32(reg, STA_CSR0_FCS_ERROR);
 778
 779         /*
 780          * Update False CCA count from register.
 781          */
 782         rt73usb_register_read(rt2x00dev, STA_CSR1, &reg);
 783         reg = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
 784         rt2x00dev->link.false_cca =
 785             rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
 786 }
 787
 788 static void rt73usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
 789 {
 790         rt73usb_bbp_write(rt2x00dev, 17, 0x20);
 791         rt2x00dev->link.vgc_level = 0x20;
 792 }
 793
 794 static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev)
 795 {
 796         int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
 797         u8 r17;
 798         u8 up_bound;
 799         u8 low_bound;
 800
 801         /*
 802          * Update Led strength
 803          */
 804         rt73usb_activity_led(rt2x00dev, rssi);
 805
 806         rt73usb_bbp_read(rt2x00dev, 17, &r17);
 807
 808         /*
 809          * Determine r17 bounds.
 810          */
 811         if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A) {
 812                 low_bound = 0x28;
 813                 up_bound = 0x48;
 814
 815                 if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) {
 816                         low_bound += 0x10;
 817                         up_bound += 0x10;
 818                 }
 819         } else {
 820                 if (rssi > -82) {
 821                         low_bound = 0x1c;
 822                         up_bound = 0x40;
 823                 } else if (rssi > -84) {
 824                         low_bound = 0x1c;
 825                         up_bound = 0x20;
 826                 } else {
 827                         low_bound = 0x1c;
 828                         up_bound = 0x1c;
 829                 }
 830
 831                 if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags)) {
 832                         low_bound += 0x14;
 833                         up_bound += 0x10;
 834                 }
 835         }
 836
 837         /*
 838          * Special big-R17 for very short distance
 839          */
 840         if (rssi > -35) {
 841                 if (r17 != 0x60)
 842                         rt73usb_bbp_write(rt2x00dev, 17, 0x60);
 843                 return;
 844         }
 845
 846         /*
 847          * Special big-R17 for short distance
 848          */
 849         if (rssi >= -58) {
 850                 if (r17 != up_bound)
 851                         rt73usb_bbp_write(rt2x00dev, 17, up_bound);
 852                 return;
 853         }
 854
 855         /*
 856          * Special big-R17 for middle-short distance
 857          */
 858         if (rssi >= -66) {
 859                 low_bound += 0x10;
 860                 if (r17 != low_bound)
 861                         rt73usb_bbp_write(rt2x00dev, 17, low_bound);
 862                 return;
 863         }
 864
 865         /*
 866          * Special mid-R17 for middle distance
 867          */
 868         if (rssi >= -74) {
 869                 if (r17 != (low_bound + 0x10))
 870                         rt73usb_bbp_write(rt2x00dev, 17, low_bound + 0x08);
 871                 return;
 872         }
 873
 874         /*
 875          * Special case: Change up_bound based on the rssi.
 876          * Lower up_bound when rssi is weaker then -74 dBm.
 877          */
 878         up_bound -= 2 * (-74 - rssi);
 879         if (low_bound > up_bound)
 880                 up_bound = low_bound;
 881
 882         if (r17 > up_bound) {
 883                 rt73usb_bbp_write(rt2x00dev, 17, up_bound);
 884                 return;
 885         }
 886
 887         /*
 888          * r17 does not yet exceed upper limit, continue and base
 889          * the r17 tuning on the false CCA count.
 890          */
 891         if (rt2x00dev->link.false_cca > 512 && r17 < up_bound) {
 892                 r17 += 4;
 893                 if (r17 > up_bound)
 894                         r17 = up_bound;
 895                 rt73usb_bbp_write(rt2x00dev, 17, r17);
 896         } else if (rt2x00dev->link.false_cca < 100 && r17 > low_bound) {
 897                 r17 -= 4;
 898                 if (r17 < low_bound)
 899                         r17 = low_bound;
 900                 rt73usb_bbp_write(rt2x00dev, 17, r17);
 901         }
 902 }
 903
 904 /*
 905  * Firmware name function.
 906  */
 907 static char *rt73usb_get_firmware_name(struct rt2x00_dev *rt2x00dev)
 908 {
 909         return FIRMWARE_RT2571;
 910 }
 911
 912 /*
 913  * Initialization functions.
 914  */
 915 static int rt73usb_load_firmware(struct rt2x00_dev *rt2x00dev, void *data,
 916                                  const size_t len)
 917 {
 918         unsigned int i;
 919         int status;
 920         u32 reg;
 921         char *ptr = data;
 922         char *cache;
 923         int buflen;
 924         int timeout;
 925
 926         /*
 927          * Wait for stable hardware.
 928          */
 929         for (i = 0; i < 100; i++) {
 930                 rt73usb_register_read(rt2x00dev, MAC_CSR0, &reg);
 931                 if (reg)
 932                         break;
 933                 msleep(1);
 934         }
 935
 936         if (!reg) {
 937                 ERROR(rt2x00dev, "Unstable hardware.\n");
 938                 return -EBUSY;
 939         }
 940
 941         /*
 942          * Write firmware to device.
 943          * We setup a seperate cache for this action,
 944          * since we are going to write larger chunks of data
 945          * then normally used cache size.
 946          */
 947         cache = kmalloc(CSR_CACHE_SIZE_FIRMWARE, GFP_KERNEL);
 948         if (!cache) {
 949                 ERROR(rt2x00dev, "Failed to allocate firmware cache.\n");
 950                 return -ENOMEM;
 951         }
 952
 953         for (i = 0; i < len; i += CSR_CACHE_SIZE_FIRMWARE) {
 954                 buflen = min_t(int, len - i, CSR_CACHE_SIZE_FIRMWARE);
 955                 timeout = REGISTER_TIMEOUT * (buflen / sizeof(u32));
 956
 957                 memcpy(cache, ptr, buflen);
 958
 959                 rt2x00usb_vendor_request(rt2x00dev, USB_MULTI_WRITE,
 960                                          USB_VENDOR_REQUEST_OUT,
 961                                          FIRMWARE_IMAGE_BASE + i, 0x0000,
 962                                          cache, buflen, timeout);
 963
 964                 ptr += buflen;
 965         }
 966
 967         kfree(cache);
 968
 969         /*
 970          * Send firmware request to device to load firmware,
 971          * we need to specify a long timeout time.
 972          */
 973         status = rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE,
 974                                              0x0000, USB_MODE_FIRMWARE,
 975                                              REGISTER_TIMEOUT_FIRMWARE);
 976         if (status < 0) {
 977                 ERROR(rt2x00dev, "Failed to write Firmware to device.\n");
 978                 return status;
 979         }
 980
 981         rt73usb_disable_led(rt2x00dev);
 982
 983         return 0;
 984 }
 985
 986 static int rt73usb_init_registers(struct rt2x00_dev *rt2x00dev)
 987 {
 988         u32 reg;
 989
 990         rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 991         rt2x00_set_field32(&reg, TXRX_CSR0_AUTO_TX_SEQ, 1);
 992         rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX, 0);
 993         rt2x00_set_field32(&reg, TXRX_CSR0_TX_WITHOUT_WAITING, 0);
 994         rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 995
 996         rt73usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
 997         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID0, 47); /* CCK Signal */
 998         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID0_VALID, 1);
 999         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID1, 30); /* Rssi */
1000         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID1_VALID, 1);
1001         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID2, 42); /* OFDM Rate */
1002         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID2_VALID, 1);
1003         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID3, 30); /* Rssi */
1004         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID3_VALID, 1);
1005         rt73usb_register_write(rt2x00dev, TXRX_CSR1, reg);
1006
1007         /*
1008          * CCK TXD BBP registers
1009          */
1010         rt73usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
1011         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID0, 13);
1012         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID0_VALID, 1);
1013         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID1, 12);
1014         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID1_VALID, 1);
1015         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID2, 11);
1016         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID2_VALID, 1);
1017         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID3, 10);
1018         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID3_VALID, 1);
1019         rt73usb_register_write(rt2x00dev, TXRX_CSR2, reg);
1020
1021         /*
1022          * OFDM TXD BBP registers
1023          */
1024         rt73usb_register_read(rt2x00dev, TXRX_CSR3, &reg);
1025         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID0, 7);
1026         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID0_VALID, 1);
1027         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID1, 6);
1028         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID1_VALID, 1);
1029         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID2, 5);
1030         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID2_VALID, 1);
1031         rt73usb_register_write(rt2x00dev, TXRX_CSR3, reg);
1032
1033         rt73usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
1034         rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_6MBS, 59);
1035         rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_9MBS, 53);
1036         rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_12MBS, 49);
1037         rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_18MBS, 46);
1038         rt73usb_register_write(rt2x00dev, TXRX_CSR7, reg);
1039
1040         rt73usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
1041         rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_24MBS, 44);
1042         rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_36MBS, 42);
1043         rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_48MBS, 42);
1044         rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_54MBS, 42);
1045         rt73usb_register_write(rt2x00dev, TXRX_CSR8, reg);
1046
1047         rt73usb_register_write(rt2x00dev, TXRX_CSR15, 0x0000000f);
1048
1049         rt73usb_register_read(rt2x00dev, MAC_CSR6, &reg);
1050         rt2x00_set_field32(&reg, MAC_CSR6_MAX_FRAME_UNIT, 0xfff);
1051         rt73usb_register_write(rt2x00dev, MAC_CSR6, reg);
1052
1053         rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00000718);
1054
1055         if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
1056                 return -EBUSY;
1057
1058         rt73usb_register_write(rt2x00dev, MAC_CSR13, 0x00007f00);
1059
1060         /*
1061          * Invalidate all Shared Keys (SEC_CSR0),
1062          * and clear the Shared key Cipher algorithms (SEC_CSR1 & SEC_CSR5)
1063          */
1064         rt73usb_register_write(rt2x00dev, SEC_CSR0, 0x00000000);
1065         rt73usb_register_write(rt2x00dev, SEC_CSR1, 0x00000000);
1066         rt73usb_register_write(rt2x00dev, SEC_CSR5, 0x00000000);
1067
1068         reg = 0x000023b0;
1069         if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
1070             rt2x00_rf(&rt2x00dev->chip, RF2527))
1071                 rt2x00_set_field32(&reg, PHY_CSR1_RF_RPI, 1);
1072         rt73usb_register_write(rt2x00dev, PHY_CSR1, reg);
1073
1074         rt73usb_register_write(rt2x00dev, PHY_CSR5, 0x00040a06);
1075         rt73usb_register_write(rt2x00dev, PHY_CSR6, 0x00080606);
1076         rt73usb_register_write(rt2x00dev, PHY_CSR7, 0x00000408);
1077
1078         rt73usb_register_read(rt2x00dev, AC_TXOP_CSR0, &reg);
1079         rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC0_TX_OP, 0);
1080         rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC1_TX_OP, 0);
1081         rt73usb_register_write(rt2x00dev, AC_TXOP_CSR0, reg);
1082
1083         rt73usb_register_read(rt2x00dev, AC_TXOP_CSR1, &reg);
1084         rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC2_TX_OP, 192);
1085         rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC3_TX_OP, 48);
1086         rt73usb_register_write(rt2x00dev, AC_TXOP_CSR1, reg);
1087
1088         rt73usb_register_read(rt2x00dev, MAC_CSR9, &reg);
1089         rt2x00_set_field32(&reg, MAC_CSR9_CW_SELECT, 0);
1090         rt73usb_register_write(rt2x00dev, MAC_CSR9, reg);
1091
1092         /*
1093          * We must clear the error counters.
1094          * These registers are cleared on read,
1095          * so we may pass a useless variable to store the value.
1096          */
1097         rt73usb_register_read(rt2x00dev, STA_CSR0, &reg);
1098         rt73usb_register_read(rt2x00dev, STA_CSR1, &reg);
1099         rt73usb_register_read(rt2x00dev, STA_CSR2, &reg);
1100
1101         /*
1102          * Reset MAC and BBP registers.
1103          */
1104         rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
1105         rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 1);
1106         rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 1);
1107         rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
1108
1109         rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
1110         rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 0);
1111         rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 0);
1112         rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
1113
1114         rt73usb_register_read(rt2x00dev, MAC_CSR1, &reg);
1115         rt2x00_set_field32(&reg, MAC_CSR1_HOST_READY, 1);
1116         rt73usb_register_write(rt2x00dev, MAC_CSR1, reg);
1117
1118         return 0;
1119 }
1120
1121 static int rt73usb_init_bbp(struct rt2x00_dev *rt2x00dev)
1122 {
1123         unsigned int i;
1124         u16 eeprom;
1125         u8 reg_id;
1126         u8 value;
1127
1128         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1129                 rt73usb_bbp_read(rt2x00dev, 0, &value);
1130                 if ((value != 0xff) && (value != 0x00))
1131                         goto continue_csr_init;
1132                 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
1133                 udelay(REGISTER_BUSY_DELAY);
1134         }
1135
1136         ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
1137         return -EACCES;
1138
1139 continue_csr_init:
1140         rt73usb_bbp_write(rt2x00dev, 3, 0x80);
1141         rt73usb_bbp_write(rt2x00dev, 15, 0x30);
1142         rt73usb_bbp_write(rt2x00dev, 21, 0xc8);
1143         rt73usb_bbp_write(rt2x00dev, 22, 0x38);
1144         rt73usb_bbp_write(rt2x00dev, 23, 0x06);
1145         rt73usb_bbp_write(rt2x00dev, 24, 0xfe);
1146         rt73usb_bbp_write(rt2x00dev, 25, 0x0a);
1147         rt73usb_bbp_write(rt2x00dev, 26, 0x0d);
1148         rt73usb_bbp_write(rt2x00dev, 32, 0x0b);
1149         rt73usb_bbp_write(rt2x00dev, 34, 0x12);
1150         rt73usb_bbp_write(rt2x00dev, 37, 0x07);
1151         rt73usb_bbp_write(rt2x00dev, 39, 0xf8);
1152         rt73usb_bbp_write(rt2x00dev, 41, 0x60);
1153         rt73usb_bbp_write(rt2x00dev, 53, 0x10);
1154         rt73usb_bbp_write(rt2x00dev, 54, 0x18);
1155         rt73usb_bbp_write(rt2x00dev, 60, 0x10);
1156         rt73usb_bbp_write(rt2x00dev, 61, 0x04);
1157         rt73usb_bbp_write(rt2x00dev, 62, 0x04);
1158         rt73usb_bbp_write(rt2x00dev, 75, 0xfe);
1159         rt73usb_bbp_write(rt2x00dev, 86, 0xfe);
1160         rt73usb_bbp_write(rt2x00dev, 88, 0xfe);
1161         rt73usb_bbp_write(rt2x00dev, 90, 0x0f);
1162         rt73usb_bbp_write(rt2x00dev, 99, 0x00);
1163         rt73usb_bbp_write(rt2x00dev, 102, 0x16);
1164         rt73usb_bbp_write(rt2x00dev, 107, 0x04);
1165
1166         DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
1167         for (i = 0; i < EEPROM_BBP_SIZE; i++) {
1168                 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
1169
1170                 if (eeprom != 0xffff && eeprom != 0x0000) {
1171                         reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
1172                         value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
1173                         DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
1174                               reg_id, value);
1175                         rt73usb_bbp_write(rt2x00dev, reg_id, value);
1176                 }
1177         }
1178         DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
1179
1180         return 0;
1181 }
1182
1183 /*
1184  * Device state switch handlers.
1185  */
1186 static void rt73usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
1187                               enum dev_state state)
1188 {
1189         u32 reg;
1190
1191         rt73usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
1192         rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX,
1193                            state == STATE_RADIO_RX_OFF);
1194         rt73usb_register_write(rt2x00dev, TXRX_CSR0, reg);
1195 }
1196
1197 static int rt73usb_enable_radio(struct rt2x00_dev *rt2x00dev)
1198 {
1199         /*
1200          * Initialize all registers.
1201          */
1202         if (rt73usb_init_registers(rt2x00dev) ||
1203             rt73usb_init_bbp(rt2x00dev)) {
1204                 ERROR(rt2x00dev, "Register initialization failed.\n");
1205                 return -EIO;
1206         }
1207
1208         rt2x00usb_enable_radio(rt2x00dev);
1209
1210         /*
1211          * Enable LED
1212          */
1213         rt73usb_enable_led(rt2x00dev);
1214
1215         return 0;
1216 }
1217
1218 static void rt73usb_disable_radio(struct rt2x00_dev *rt2x00dev)
1219 {
1220         /*
1221          * Disable LED
1222          */
1223         rt73usb_disable_led(rt2x00dev);
1224
1225         rt73usb_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
1226
1227         /*
1228          * Disable synchronisation.
1229          */
1230         rt73usb_register_write(rt2x00dev, TXRX_CSR9, 0);
1231
1232         rt2x00usb_disable_radio(rt2x00dev);
1233 }
1234
1235 static int rt73usb_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state)
1236 {
1237         u32 reg;
1238         unsigned int i;
1239         char put_to_sleep;
1240         char current_state;
1241
1242         put_to_sleep = (state != STATE_AWAKE);
1243
1244         rt73usb_register_read(rt2x00dev, MAC_CSR12, &reg);
1245         rt2x00_set_field32(&reg, MAC_CSR12_FORCE_WAKEUP, !put_to_sleep);
1246         rt2x00_set_field32(&reg, MAC_CSR12_PUT_TO_SLEEP, put_to_sleep);
1247         rt73usb_register_write(rt2x00dev, MAC_CSR12, reg);
1248
1249         /*
1250          * Device is not guaranteed to be in the requested state yet.
1251          * We must wait until the register indicates that the
1252          * device has entered the correct state.
1253          */
1254         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1255                 rt73usb_register_read(rt2x00dev, MAC_CSR12, &reg);
1256                 current_state =
1257                     rt2x00_get_field32(reg, MAC_CSR12_BBP_CURRENT_STATE);
1258                 if (current_state == !put_to_sleep)
1259                         return 0;
1260                 msleep(10);
1261         }
1262
1263         NOTICE(rt2x00dev, "Device failed to enter state %d, "
1264                "current device state %d.\n", !put_to_sleep, current_state);
1265
1266         return -EBUSY;
1267 }
1268
1269 static int rt73usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1270                                     enum dev_state state)
1271 {
1272         int retval = 0;
1273
1274         switch (state) {
1275         case STATE_RADIO_ON:
1276                 retval = rt73usb_enable_radio(rt2x00dev);
1277                 break;
1278         case STATE_RADIO_OFF:
1279                 rt73usb_disable_radio(rt2x00dev);
1280                 break;
1281         case STATE_RADIO_RX_ON:
1282         case STATE_RADIO_RX_OFF:
1283                 rt73usb_toggle_rx(rt2x00dev, state);
1284                 break;
1285         case STATE_DEEP_SLEEP:
1286         case STATE_SLEEP:
1287         case STATE_STANDBY:
1288         case STATE_AWAKE:
1289                 retval = rt73usb_set_state(rt2x00dev, state);
1290                 break;
1291         default:
1292                 retval = -ENOTSUPP;
1293                 break;
1294         }
1295
1296         return retval;
1297 }
1298
1299 /*
1300  * TX descriptor initialization
1301  */
1302 static void rt73usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1303                                   struct data_desc *txd,
1304                                   struct data_entry_desc *desc,
1305                                   struct ieee80211_hdr *ieee80211hdr,
1306                                   unsigned int length,
1307                                   struct ieee80211_tx_control *control)
1308 {
1309         u32 word;
1310
1311         /*
1312          * Start writing the descriptor words.
1313          */
1314         rt2x00_desc_read(txd, 1, &word);
1315         rt2x00_set_field32(&word, TXD_W1_HOST_Q_ID, desc->queue);
1316         rt2x00_set_field32(&word, TXD_W1_AIFSN, desc->aifs);
1317         rt2x00_set_field32(&word, TXD_W1_CWMIN, desc->cw_min);
1318         rt2x00_set_field32(&word, TXD_W1_CWMAX, desc->cw_max);
1319         rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1320         rt2x00_set_field32(&word, TXD_W1_HW_SEQUENCE, 1);
1321         rt2x00_desc_write(txd, 1, word);
1322
1323         rt2x00_desc_read(txd, 2, &word);
1324         rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, desc->signal);
1325         rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, desc->service);
1326         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, desc->length_low);
1327         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, desc->length_high);
1328         rt2x00_desc_write(txd, 2, word);
1329
1330         rt2x00_desc_read(txd, 5, &word);
1331         rt2x00_set_field32(&word, TXD_W5_TX_POWER,
1332                            TXPOWER_TO_DEV(control->power_level));
1333         rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1);
1334         rt2x00_desc_write(txd, 5, word);
1335
1336         rt2x00_desc_read(txd, 0, &word);
1337         rt2x00_set_field32(&word, TXD_W0_BURST,
1338                            test_bit(ENTRY_TXD_BURST, &desc->flags));
1339         rt2x00_set_field32(&word, TXD_W0_VALID, 1);
1340         rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1341                            test_bit(ENTRY_TXD_MORE_FRAG, &desc->flags));
1342         rt2x00_set_field32(&word, TXD_W0_ACK,
1343                            !(control->flags & IEEE80211_TXCTL_NO_ACK));
1344         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1345                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &desc->flags));
1346         rt2x00_set_field32(&word, TXD_W0_OFDM,
1347                            test_bit(ENTRY_TXD_OFDM_RATE, &desc->flags));
1348         rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs);
1349         rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
1350                            !!(control->flags &
1351                               IEEE80211_TXCTL_LONG_RETRY_LIMIT));
1352         rt2x00_set_field32(&word, TXD_W0_TKIP_MIC, 0);
1353         rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, length);
1354         rt2x00_set_field32(&word, TXD_W0_BURST2,
1355                            test_bit(ENTRY_TXD_BURST, &desc->flags));
1356         rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE);
1357         rt2x00_desc_write(txd, 0, word);
1358 }
1359
1360 /*
1361  * TX data initialization
1362  */
1363 static void rt73usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1364                                   unsigned int queue)
1365 {
1366         u32 reg;
1367
1368         if (queue != IEEE80211_TX_QUEUE_BEACON)
1369                 return;
1370
1371         /*
1372          * For Wi-Fi faily generated beacons between participating stations.
1373          * Set TBTT phase adaptive adjustment step to 8us (default 16us)
1374          */
1375         rt73usb_register_write(rt2x00dev, TXRX_CSR10, 0x00001008);
1376
1377         rt73usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
1378         if (!rt2x00_get_field32(reg, TXRX_CSR9_BEACON_GEN)) {
1379                 rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 1);
1380                 rt73usb_register_write(rt2x00dev, TXRX_CSR9, reg);
1381         }
1382 }
1383
1384 /*
1385  * RX control handlers
1386  */
1387 static int rt73usb_agc_to_rssi(struct rt2x00_dev *rt2x00dev, int rxd_w1)
1388 {
1389         u16 eeprom;
1390         u8 offset;
1391         u8 lna;
1392
1393         lna = rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_LNA);
1394         switch (lna) {
1395         case 3:
1396                 offset = 90;
1397                 break;
1398         case 2:
1399                 offset = 74;
1400                 break;
1401         case 1:
1402                 offset = 64;
1403                 break;
1404         default:
1405                 return 0;
1406         }
1407
1408         if (rt2x00dev->rx_status.phymode == MODE_IEEE80211A) {
1409                 if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) {
1410                         if (lna == 3 || lna == 2)
1411                                 offset += 10;
1412                 } else {
1413                         if (lna == 3)
1414                                 offset += 6;
1415                         else if (lna == 2)
1416                                 offset += 8;
1417                 }
1418
1419                 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &eeprom);
1420                 offset -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_A_1);
1421         } else {
1422                 if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags))
1423                         offset += 14;
1424
1425                 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &eeprom);
1426                 offset -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_BG_1);
1427         }
1428
1429         return rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_AGC) * 2 - offset;
1430 }
1431
1432 static int rt73usb_fill_rxdone(struct data_entry *entry,
1433                                int *signal, int *rssi, int *ofdm, int *size)
1434 {
1435         struct data_desc *rxd = (struct data_desc *)entry->skb->data;
1436         u32 word0;
1437         u32 word1;
1438
1439         rt2x00_desc_read(rxd, 0, &word0);
1440         rt2x00_desc_read(rxd, 1, &word1);
1441
1442         if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR) ||
1443             rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
1444                 return -EINVAL;
1445
1446         /*
1447          * Obtain the status about this packet.
1448          */
1449         *signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1450         *rssi = rt73usb_agc_to_rssi(entry->ring->rt2x00dev, word1);
1451         *ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
1452         *size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1453
1454         /*
1455          * Pull the skb to clear the descriptor area.
1456          */
1457         skb_pull(entry->skb, entry->ring->desc_size);
1458
1459         return 0;
1460 }
1461
1462 /*
1463  * Device probe functions.
1464  */
1465 static int rt73usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1466 {
1467         u16 word;
1468         u8 *mac;
1469         s8 value;
1470
1471         rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1472
1473         /*
1474          * Start validation of the data that has been read.
1475          */
1476         mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1477         if (!is_valid_ether_addr(mac)) {
1478                 random_ether_addr(mac);
1479                 EEPROM(rt2x00dev, "MAC: " MAC_FMT "\n", MAC_ARG(mac));
1480         }
1481
1482         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1483         if (word == 0xffff) {
1484                 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1485                 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT, 2);
1486                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT, 2);
1487                 rt2x00_set_field16(&word, EEPROM_ANTENNA_FRAME_TYPE, 0);
1488                 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1489                 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1490                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF5226);
1491                 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1492                 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1493         }
1494
1495         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1496         if (word == 0xffff) {
1497                 rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA, 0);
1498                 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1499                 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1500         }
1501
1502         rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &word);
1503         if (word == 0xffff) {
1504                 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_RDY_G, 0);
1505                 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_RDY_A, 0);
1506                 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_ACT, 0);
1507                 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_0, 0);
1508                 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_1, 0);
1509                 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_2, 0);
1510                 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_3, 0);
1511                 rt2x00_set_field16(&word, EEPROM_LED_POLARITY_GPIO_4, 0);
1512                 rt2x00_set_field16(&word, EEPROM_LED_LED_MODE,
1513                                    LED_MODE_DEFAULT);
1514                 rt2x00_eeprom_write(rt2x00dev, EEPROM_LED, word);
1515                 EEPROM(rt2x00dev, "Led: 0x%04x\n", word);
1516         }
1517
1518         rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &word);
1519         if (word == 0xffff) {
1520                 rt2x00_set_field16(&word, EEPROM_FREQ_OFFSET, 0);
1521                 rt2x00_set_field16(&word, EEPROM_FREQ_SEQ, 0);
1522                 rt2x00_eeprom_write(rt2x00dev, EEPROM_FREQ, word);
1523                 EEPROM(rt2x00dev, "Freq: 0x%04x\n", word);
1524         }
1525
1526         rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &word);
1527         if (word == 0xffff) {
1528                 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
1529                 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
1530                 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
1531                 EEPROM(rt2x00dev, "RSSI OFFSET BG: 0x%04x\n", word);
1532         } else {
1533                 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_1);
1534                 if (value < -10 || value > 10)
1535                         rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
1536                 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_2);
1537                 if (value < -10 || value > 10)
1538                         rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
1539                 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
1540         }
1541
1542         rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &word);
1543         if (word == 0xffff) {
1544                 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
1545                 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
1546                 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
1547                 EEPROM(rt2x00dev, "RSSI OFFSET BG: 0x%04x\n", word);
1548         } else {
1549                 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_1);
1550                 if (value < -10 || value > 10)
1551                         rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
1552                 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_2);
1553                 if (value < -10 || value > 10)
1554                         rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
1555                 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
1556         }
1557
1558         return 0;
1559 }
1560
1561 static int rt73usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1562 {
1563         u32 reg;
1564         u16 value;
1565         u16 eeprom;
1566
1567         /*
1568          * Read EEPROM word for configuration.
1569          */
1570         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1571
1572         /*
1573          * Identify RF chipset.
1574          */
1575         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1576         rt73usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1577         rt2x00_set_chip(rt2x00dev, RT2571, value, reg);
1578
1579         if (!rt2x00_rev(&rt2x00dev->chip, 0x25730)) {
1580                 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1581                 return -ENODEV;
1582         }
1583
1584         if (!rt2x00_rf(&rt2x00dev->chip, RF5226) &&
1585             !rt2x00_rf(&rt2x00dev->chip, RF2528) &&
1586             !rt2x00_rf(&rt2x00dev->chip, RF5225) &&
1587             !rt2x00_rf(&rt2x00dev->chip, RF2527)) {
1588                 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1589                 return -ENODEV;
1590         }
1591
1592         /*
1593          * Identify default antenna configuration.
1594          */
1595         rt2x00dev->hw->conf.antenna_sel_tx =
1596             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1597         rt2x00dev->hw->conf.antenna_sel_rx =
1598             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1599
1600         /*
1601          * Read the Frame type.
1602          */
1603         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_FRAME_TYPE))
1604                 __set_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags);
1605
1606         /*
1607          * Read frequency offset.
1608          */
1609         rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom);
1610         rt2x00dev->freq_offset = rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET);
1611
1612         /*
1613          * Read external LNA informations.
1614          */
1615         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1616
1617         if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA)) {
1618                 __set_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
1619                 __set_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
1620         }
1621
1622         /*
1623          * Store led settings, for correct led behaviour.
1624          */
1625         rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom);
1626
1627         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_LED_MODE,
1628                            rt2x00dev->led_mode);
1629         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_0,
1630                            rt2x00_get_field16(eeprom,
1631                                               EEPROM_LED_POLARITY_GPIO_0));
1632         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_1,
1633                            rt2x00_get_field16(eeprom,
1634                                               EEPROM_LED_POLARITY_GPIO_1));
1635         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_2,
1636                            rt2x00_get_field16(eeprom,
1637                                               EEPROM_LED_POLARITY_GPIO_2));
1638         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_3,
1639                            rt2x00_get_field16(eeprom,
1640                                               EEPROM_LED_POLARITY_GPIO_3));
1641         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_GPIO_4,
1642                            rt2x00_get_field16(eeprom,
1643                                               EEPROM_LED_POLARITY_GPIO_4));
1644         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_ACT,
1645                            rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_ACT));
1646         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_READY_BG,
1647                            rt2x00_get_field16(eeprom,
1648                                               EEPROM_LED_POLARITY_RDY_G));
1649         rt2x00_set_field16(&rt2x00dev->led_reg, MCU_LEDCS_POLARITY_READY_A,
1650                            rt2x00_get_field16(eeprom,
1651                                               EEPROM_LED_POLARITY_RDY_A));
1652
1653         return 0;
1654 }
1655
1656 /*
1657  * RF value list for RF2528
1658  * Supports: 2.4 GHz
1659  */
1660 static const struct rf_channel rf_vals_bg_2528[] = {
1661         { 1,  0x00002c0c, 0x00000786, 0x00068255, 0x000fea0b },
1662         { 2,  0x00002c0c, 0x00000786, 0x00068255, 0x000fea1f },
1663         { 3,  0x00002c0c, 0x0000078a, 0x00068255, 0x000fea0b },
1664         { 4,  0x00002c0c, 0x0000078a, 0x00068255, 0x000fea1f },
1665         { 5,  0x00002c0c, 0x0000078e, 0x00068255, 0x000fea0b },
1666         { 6,  0x00002c0c, 0x0000078e, 0x00068255, 0x000fea1f },
1667         { 7,  0x00002c0c, 0x00000792, 0x00068255, 0x000fea0b },
1668         { 8,  0x00002c0c, 0x00000792, 0x00068255, 0x000fea1f },
1669         { 9,  0x00002c0c, 0x00000796, 0x00068255, 0x000fea0b },
1670         { 10, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea1f },
1671         { 11, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea0b },
1672         { 12, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea1f },
1673         { 13, 0x00002c0c, 0x0000079e, 0x00068255, 0x000fea0b },
1674         { 14, 0x00002c0c, 0x000007a2, 0x00068255, 0x000fea13 },
1675 };
1676
1677 /*
1678  * RF value list for RF5226
1679  * Supports: 2.4 GHz & 5.2 GHz
1680  */
1681 static const struct rf_channel rf_vals_5226[] = {
1682         { 1,  0x00002c0c, 0x00000786, 0x00068255, 0x000fea0b },
1683         { 2,  0x00002c0c, 0x00000786, 0x00068255, 0x000fea1f },
1684         { 3,  0x00002c0c, 0x0000078a, 0x00068255, 0x000fea0b },
1685         { 4,  0x00002c0c, 0x0000078a, 0x00068255, 0x000fea1f },
1686         { 5,  0x00002c0c, 0x0000078e, 0x00068255, 0x000fea0b },
1687         { 6,  0x00002c0c, 0x0000078e, 0x00068255, 0x000fea1f },
1688         { 7,  0x00002c0c, 0x00000792, 0x00068255, 0x000fea0b },
1689         { 8,  0x00002c0c, 0x00000792, 0x00068255, 0x000fea1f },
1690         { 9,  0x00002c0c, 0x00000796, 0x00068255, 0x000fea0b },
1691         { 10, 0x00002c0c, 0x00000796, 0x00068255, 0x000fea1f },
1692         { 11, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea0b },
1693         { 12, 0x00002c0c, 0x0000079a, 0x00068255, 0x000fea1f },
1694         { 13, 0x00002c0c, 0x0000079e, 0x00068255, 0x000fea0b },
1695         { 14, 0x00002c0c, 0x000007a2, 0x00068255, 0x000fea13 },
1696
1697         /* 802.11 UNI / HyperLan 2 */
1698         { 36, 0x00002c0c, 0x0000099a, 0x00098255, 0x000fea23 },
1699         { 40, 0x00002c0c, 0x000009a2, 0x00098255, 0x000fea03 },
1700         { 44, 0x00002c0c, 0x000009a6, 0x00098255, 0x000fea0b },
1701         { 48, 0x00002c0c, 0x000009aa, 0x00098255, 0x000fea13 },
1702         { 52, 0x00002c0c, 0x000009ae, 0x00098255, 0x000fea1b },
1703         { 56, 0x00002c0c, 0x000009b2, 0x00098255, 0x000fea23 },
1704         { 60, 0x00002c0c, 0x000009ba, 0x00098255, 0x000fea03 },
1705         { 64, 0x00002c0c, 0x000009be, 0x00098255, 0x000fea0b },
1706
1707         /* 802.11 HyperLan 2 */
1708         { 100, 0x00002c0c, 0x00000a2a, 0x000b8255, 0x000fea03 },
1709         { 104, 0x00002c0c, 0x00000a2e, 0x000b8255, 0x000fea0b },
1710         { 108, 0x00002c0c, 0x00000a32, 0x000b8255, 0x000fea13 },
1711         { 112, 0x00002c0c, 0x00000a36, 0x000b8255, 0x000fea1b },
1712         { 116, 0x00002c0c, 0x00000a3a, 0x000b8255, 0x000fea23 },
1713         { 120, 0x00002c0c, 0x00000a82, 0x000b8255, 0x000fea03 },
1714         { 124, 0x00002c0c, 0x00000a86, 0x000b8255, 0x000fea0b },
1715         { 128, 0x00002c0c, 0x00000a8a, 0x000b8255, 0x000fea13 },
1716         { 132, 0x00002c0c, 0x00000a8e, 0x000b8255, 0x000fea1b },
1717         { 136, 0x00002c0c, 0x00000a92, 0x000b8255, 0x000fea23 },
1718
1719         /* 802.11 UNII */
1720         { 140, 0x00002c0c, 0x00000a9a, 0x000b8255, 0x000fea03 },
1721         { 149, 0x00002c0c, 0x00000aa2, 0x000b8255, 0x000fea1f },
1722         { 153, 0x00002c0c, 0x00000aa6, 0x000b8255, 0x000fea27 },
1723         { 157, 0x00002c0c, 0x00000aae, 0x000b8255, 0x000fea07 },
1724         { 161, 0x00002c0c, 0x00000ab2, 0x000b8255, 0x000fea0f },
1725         { 165, 0x00002c0c, 0x00000ab6, 0x000b8255, 0x000fea17 },
1726
1727         /* MMAC(Japan)J52 ch 34,38,42,46 */
1728         { 34, 0x00002c0c, 0x0008099a, 0x000da255, 0x000d3a0b },
1729         { 38, 0x00002c0c, 0x0008099e, 0x000da255, 0x000d3a13 },
1730         { 42, 0x00002c0c, 0x000809a2, 0x000da255, 0x000d3a1b },
1731         { 46, 0x00002c0c, 0x000809a6, 0x000da255, 0x000d3a23 },
1732 };
1733
1734 /*
1735  * RF value list for RF5225 & RF2527
1736  * Supports: 2.4 GHz & 5.2 GHz
1737  */
1738 static const struct rf_channel rf_vals_5225_2527[] = {
1739         { 1,  0x00002ccc, 0x00004786, 0x00068455, 0x000ffa0b },
1740         { 2,  0x00002ccc, 0x00004786, 0x00068455, 0x000ffa1f },
1741         { 3,  0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa0b },
1742         { 4,  0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa1f },
1743         { 5,  0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa0b },
1744         { 6,  0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa1f },
1745         { 7,  0x00002ccc, 0x00004792, 0x00068455, 0x000ffa0b },
1746         { 8,  0x00002ccc, 0x00004792, 0x00068455, 0x000ffa1f },
1747         { 9,  0x00002ccc, 0x00004796, 0x00068455, 0x000ffa0b },
1748         { 10, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa1f },
1749         { 11, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa0b },
1750         { 12, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa1f },
1751         { 13, 0x00002ccc, 0x0000479e, 0x00068455, 0x000ffa0b },
1752         { 14, 0x00002ccc, 0x000047a2, 0x00068455, 0x000ffa13 },
1753
1754         /* 802.11 UNI / HyperLan 2 */
1755         { 36, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa23 },
1756         { 40, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa03 },
1757         { 44, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa0b },
1758         { 48, 0x00002ccc, 0x000049aa, 0x0009be55, 0x000ffa13 },
1759         { 52, 0x00002ccc, 0x000049ae, 0x0009ae55, 0x000ffa1b },
1760         { 56, 0x00002ccc, 0x000049b2, 0x0009ae55, 0x000ffa23 },
1761         { 60, 0x00002ccc, 0x000049ba, 0x0009ae55, 0x000ffa03 },
1762         { 64, 0x00002ccc, 0x000049be, 0x0009ae55, 0x000ffa0b },
1763
1764         /* 802.11 HyperLan 2 */
1765         { 100, 0x00002ccc, 0x00004a2a, 0x000bae55, 0x000ffa03 },
1766         { 104, 0x00002ccc, 0x00004a2e, 0x000bae55, 0x000ffa0b },
1767         { 108, 0x00002ccc, 0x00004a32, 0x000bae55, 0x000ffa13 },
1768         { 112, 0x00002ccc, 0x00004a36, 0x000bae55, 0x000ffa1b },
1769         { 116, 0x00002ccc, 0x00004a3a, 0x000bbe55, 0x000ffa23 },
1770         { 120, 0x00002ccc, 0x00004a82, 0x000bbe55, 0x000ffa03 },
1771         { 124, 0x00002ccc, 0x00004a86, 0x000bbe55, 0x000ffa0b },
1772         { 128, 0x00002ccc, 0x00004a8a, 0x000bbe55, 0x000ffa13 },
1773         { 132, 0x00002ccc, 0x00004a8e, 0x000bbe55, 0x000ffa1b },
1774         { 136, 0x00002ccc, 0x00004a92, 0x000bbe55, 0x000ffa23 },
1775
1776         /* 802.11 UNII */
1777         { 140, 0x00002ccc, 0x00004a9a, 0x000bbe55, 0x000ffa03 },
1778         { 149, 0x00002ccc, 0x00004aa2, 0x000bbe55, 0x000ffa1f },
1779         { 153, 0x00002ccc, 0x00004aa6, 0x000bbe55, 0x000ffa27 },
1780         { 157, 0x00002ccc, 0x00004aae, 0x000bbe55, 0x000ffa07 },
1781         { 161, 0x00002ccc, 0x00004ab2, 0x000bbe55, 0x000ffa0f },
1782         { 165, 0x00002ccc, 0x00004ab6, 0x000bbe55, 0x000ffa17 },
1783
1784         /* MMAC(Japan)J52 ch 34,38,42,46 */
1785         { 34, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa0b },
1786         { 38, 0x00002ccc, 0x0000499e, 0x0009be55, 0x000ffa13 },
1787         { 42, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa1b },
1788         { 46, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa23 },
1789 };
1790
1791
1792 static void rt73usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1793 {
1794         struct hw_mode_spec *spec = &rt2x00dev->spec;
1795         u8 *txpower;
1796         unsigned int i;
1797
1798         /*
1799          * Initialize all hw fields.
1800          */
1801         rt2x00dev->hw->flags =
1802             IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
1803             IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1804             IEEE80211_HW_MONITOR_DURING_OPER |
1805             IEEE80211_HW_NO_PROBE_FILTERING;
1806         rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1807         rt2x00dev->hw->max_signal = MAX_SIGNAL;
1808         rt2x00dev->hw->max_rssi = MAX_RX_SSI;
1809         rt2x00dev->hw->queues = 5;
1810
1811         SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
1812         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1813                                 rt2x00_eeprom_addr(rt2x00dev,
1814                                                    EEPROM_MAC_ADDR_0));
1815
1816         /*
1817          * Convert tx_power array in eeprom.
1818          */
1819         txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_G_START);
1820         for (i = 0; i < 14; i++)
1821                 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1822
1823         /*
1824          * Initialize hw_mode information.
1825          */
1826         spec->num_modes = 2;
1827         spec->num_rates = 12;
1828         spec->tx_power_a = NULL;
1829         spec->tx_power_bg = txpower;
1830         spec->tx_power_default = DEFAULT_TXPOWER;
1831
1832         if (rt2x00_rf(&rt2x00dev->chip, RF2528)) {
1833                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2528);
1834                 spec->channels = rf_vals_bg_2528;
1835         } else if (rt2x00_rf(&rt2x00dev->chip, RF5226)) {
1836                 spec->num_channels = ARRAY_SIZE(rf_vals_5226);
1837                 spec->channels = rf_vals_5226;
1838         } else if (rt2x00_rf(&rt2x00dev->chip, RF2527)) {
1839                 spec->num_channels = 14;
1840                 spec->channels = rf_vals_5225_2527;
1841         } else if (rt2x00_rf(&rt2x00dev->chip, RF5225)) {
1842                 spec->num_channels = ARRAY_SIZE(rf_vals_5225_2527);
1843                 spec->channels = rf_vals_5225_2527;
1844         }
1845
1846         if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
1847             rt2x00_rf(&rt2x00dev->chip, RF5226)) {
1848                 spec->num_modes = 3;
1849
1850                 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
1851                 for (i = 0; i < 14; i++)
1852                         txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1853
1854                 spec->tx_power_a = txpower;
1855         }
1856 }
1857
1858 static int rt73usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1859 {
1860         int retval;
1861
1862         /*
1863          * Allocate eeprom data.
1864          */
1865         retval = rt73usb_validate_eeprom(rt2x00dev);
1866         if (retval)
1867                 return retval;
1868
1869         retval = rt73usb_init_eeprom(rt2x00dev);
1870         if (retval)
1871                 return retval;
1872
1873         /*
1874          * Initialize hw specifications.
1875          */
1876         rt73usb_probe_hw_mode(rt2x00dev);
1877
1878         /*
1879          * USB devices require scheduled packet filter toggling
1880          * This device requires firmware
1881          */
1882         __set_bit(REQUIRE_FIRMWARE, &rt2x00dev->flags);
1883         __set_bit(PACKET_FILTER_SCHEDULED, &rt2x00dev->flags);
1884
1885         /*
1886          * Set the rssi offset.
1887          */
1888         rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1889
1890         return 0;
1891 }
1892
1893 /*
1894  * IEEE80211 stack callback functions.
1895  */
1896 static int rt73usb_set_retry_limit(struct ieee80211_hw *hw,
1897                                    u32 short_retry, u32 long_retry)
1898 {
1899         struct rt2x00_dev *rt2x00dev = hw->priv;
1900         u32 reg;
1901
1902         rt73usb_register_read(rt2x00dev, TXRX_CSR4, &reg);
1903         rt2x00_set_field32(&reg, TXRX_CSR4_LONG_RETRY_LIMIT, long_retry);
1904         rt2x00_set_field32(&reg, TXRX_CSR4_SHORT_RETRY_LIMIT, short_retry);
1905         rt73usb_register_write(rt2x00dev, TXRX_CSR4, reg);
1906
1907         return 0;
1908 }
1909
1910 #if 0
1911 /*
1912  * Mac80211 demands get_tsf must be atomic.
1913  * This is not possible for rt73usb since all register access
1914  * functions require sleeping. Untill mac80211 no longer needs
1915  * get_tsf to be atomic, this function should be disabled.
1916  */
1917 static u64 rt73usb_get_tsf(struct ieee80211_hw *hw)
1918 {
1919         struct rt2x00_dev *rt2x00dev = hw->priv;
1920         u64 tsf;
1921         u32 reg;
1922
1923         rt73usb_register_read(rt2x00dev, TXRX_CSR13, &reg);
1924         tsf = (u64) rt2x00_get_field32(reg, TXRX_CSR13_HIGH_TSFTIMER) << 32;
1925         rt73usb_register_read(rt2x00dev, TXRX_CSR12, &reg);
1926         tsf |= rt2x00_get_field32(reg, TXRX_CSR12_LOW_TSFTIMER);
1927
1928         return tsf;
1929 }
1930 #endif
1931
1932 static void rt73usb_reset_tsf(struct ieee80211_hw *hw)
1933 {
1934         struct rt2x00_dev *rt2x00dev = hw->priv;
1935
1936         rt73usb_register_write(rt2x00dev, TXRX_CSR12, 0);
1937         rt73usb_register_write(rt2x00dev, TXRX_CSR13, 0);
1938 }
1939
1940 int rt73usb_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
1941                           struct ieee80211_tx_control *control)
1942 {
1943         struct rt2x00_dev *rt2x00dev = hw->priv;
1944         int timeout;
1945
1946         /*
1947          * Just in case the ieee80211 doesn't set this,
1948          * but we need this queue set for the descriptor
1949          * initialization.
1950          */
1951         control->queue = IEEE80211_TX_QUEUE_BEACON;
1952
1953         /*
1954          * First we create the beacon.
1955          */
1956         skb_push(skb, TXD_DESC_SIZE);
1957         rt2x00lib_write_tx_desc(rt2x00dev, (struct data_desc *)skb->data,
1958                                 (struct ieee80211_hdr *)(skb->data +
1959                                                          TXD_DESC_SIZE),
1960                                 skb->len - TXD_DESC_SIZE, control);
1961
1962         /*
1963          * Write entire beacon with descriptor to register,
1964          * and kick the beacon generator.
1965          */
1966         timeout = REGISTER_TIMEOUT * (skb->len / sizeof(u32));
1967         rt2x00usb_vendor_request(rt2x00dev, USB_MULTI_WRITE,
1968                                  USB_VENDOR_REQUEST_OUT,
1969                                  HW_BEACON_BASE0, 0x0000,
1970                                  skb->data, skb->len, timeout);
1971         rt73usb_kick_tx_queue(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
1972
1973         return 0;
1974 }
1975
1976 static const struct ieee80211_ops rt73usb_mac80211_ops = {
1977         .tx                     = rt2x00mac_tx,
1978         .add_interface          = rt2x00mac_add_interface,
1979         .remove_interface       = rt2x00mac_remove_interface,
1980         .config                 = rt2x00mac_config,
1981         .config_interface       = rt2x00mac_config_interface,
1982         .set_multicast_list     = rt2x00mac_set_multicast_list,
1983         .get_stats              = rt2x00mac_get_stats,
1984         .set_retry_limit        = rt73usb_set_retry_limit,
1985         .conf_tx                = rt2x00mac_conf_tx,
1986         .get_tx_stats           = rt2x00mac_get_tx_stats,
1987 #if 0
1988 /*
1989  * See comment at the rt73usb_get_tsf function.
1990  */
1991         .get_tsf                = rt73usb_get_tsf,
1992 #endif
1993         .reset_tsf              = rt73usb_reset_tsf,
1994         .beacon_update          = rt73usb_beacon_update,
1995 };
1996
1997 static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
1998         .probe_hw               = rt73usb_probe_hw,
1999         .get_firmware_name      = rt73usb_get_firmware_name,
2000         .load_firmware          = rt73usb_load_firmware,
2001         .initialize             = rt2x00usb_initialize,
2002         .uninitialize           = rt2x00usb_uninitialize,
2003         .set_device_state       = rt73usb_set_device_state,
2004         .link_stats             = rt73usb_link_stats,
2005         .reset_tuner            = rt73usb_reset_tuner,
2006         .link_tuner             = rt73usb_link_tuner,
2007         .write_tx_desc          = rt73usb_write_tx_desc,
2008         .write_tx_data          = rt2x00usb_write_tx_data,
2009         .kick_tx_queue          = rt73usb_kick_tx_queue,
2010         .fill_rxdone            = rt73usb_fill_rxdone,
2011         .config_mac_addr        = rt73usb_config_mac_addr,
2012         .config_bssid           = rt73usb_config_bssid,
2013         .config_packet_filter   = rt73usb_config_packet_filter,
2014         .config_type            = rt73usb_config_type,
2015         .config                 = rt73usb_config,
2016 };
2017
2018 static const struct rt2x00_ops rt73usb_ops = {
2019         .name           = DRV_NAME,
2020         .rxd_size       = RXD_DESC_SIZE,
2021         .txd_size       = TXD_DESC_SIZE,
2022         .eeprom_size    = EEPROM_SIZE,
2023         .rf_size        = RF_SIZE,
2024         .lib            = &rt73usb_rt2x00_ops,
2025         .hw             = &rt73usb_mac80211_ops,
2026 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
2027         .debugfs        = &rt73usb_rt2x00debug,
2028 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
2029 };
2030
2031 /*
2032  * rt73usb module information.
2033  */
2034 static struct usb_device_id rt73usb_device_table[] = {
2035         /* AboCom */
2036         { USB_DEVICE(0x07b8, 0xb21d), USB_DEVICE_DATA(&rt73usb_ops) },
2037         /* Askey */
2038         { USB_DEVICE(0x1690, 0x0722), USB_DEVICE_DATA(&rt73usb_ops) },
2039         /* ASUS */
2040         { USB_DEVICE(0x0b05, 0x1723), USB_DEVICE_DATA(&rt73usb_ops) },
2041         { USB_DEVICE(0x0b05, 0x1724), USB_DEVICE_DATA(&rt73usb_ops) },
2042         /* Belkin */
2043         { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt73usb_ops) },
2044         { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt73usb_ops) },
2045         { USB_DEVICE(0x050d, 0x905b), USB_DEVICE_DATA(&rt73usb_ops) },
2046         /* Billionton */
2047         { USB_DEVICE(0x1631, 0xc019), USB_DEVICE_DATA(&rt73usb_ops) },
2048         /* Buffalo */
2049         { USB_DEVICE(0x0411, 0x00f4), USB_DEVICE_DATA(&rt73usb_ops) },
2050         /* CNet */
2051         { USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt73usb_ops) },
2052         { USB_DEVICE(0x1371, 0x9032), USB_DEVICE_DATA(&rt73usb_ops) },
2053         /* Conceptronic */
2054         { USB_DEVICE(0x14b2, 0x3c22), USB_DEVICE_DATA(&rt73usb_ops) },
2055         /* D-Link */
2056         { USB_DEVICE(0x07d1, 0x3c03), USB_DEVICE_DATA(&rt73usb_ops) },
2057         { USB_DEVICE(0x07d1, 0x3c04), USB_DEVICE_DATA(&rt73usb_ops) },
2058         /* Gemtek */
2059         { USB_DEVICE(0x15a9, 0x0004), USB_DEVICE_DATA(&rt73usb_ops) },
2060         /* Gigabyte */
2061         { USB_DEVICE(0x1044, 0x8008), USB_DEVICE_DATA(&rt73usb_ops) },
2062         { USB_DEVICE(0x1044, 0x800a), USB_DEVICE_DATA(&rt73usb_ops) },
2063         /* Huawei-3Com */
2064         { USB_DEVICE(0x1472, 0x0009), USB_DEVICE_DATA(&rt73usb_ops) },
2065         /* Hercules */
2066         { USB_DEVICE(0x06f8, 0xe010), USB_DEVICE_DATA(&rt73usb_ops) },
2067         { USB_DEVICE(0x06f8, 0xe020), USB_DEVICE_DATA(&rt73usb_ops) },
2068         /* Linksys */
2069         { USB_DEVICE(0x13b1, 0x0020), USB_DEVICE_DATA(&rt73usb_ops) },
2070         { USB_DEVICE(0x13b1, 0x0023), USB_DEVICE_DATA(&rt73usb_ops) },
2071         /* MSI */
2072         { USB_DEVICE(0x0db0, 0x6877), USB_DEVICE_DATA(&rt73usb_ops) },
2073         { USB_DEVICE(0x0db0, 0x6874), USB_DEVICE_DATA(&rt73usb_ops) },
2074         { USB_DEVICE(0x0db0, 0xa861), USB_DEVICE_DATA(&rt73usb_ops) },
2075         { USB_DEVICE(0x0db0, 0xa874), USB_DEVICE_DATA(&rt73usb_ops) },
2076         /* Ralink */
2077         { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt73usb_ops) },
2078         { USB_DEVICE(0x148f, 0x2671), USB_DEVICE_DATA(&rt73usb_ops) },
2079         /* Qcom */
2080         { USB_DEVICE(0x18e8, 0x6196), USB_DEVICE_DATA(&rt73usb_ops) },
2081         { USB_DEVICE(0x18e8, 0x6229), USB_DEVICE_DATA(&rt73usb_ops) },
2082         { USB_DEVICE(0x18e8, 0x6238), USB_DEVICE_DATA(&rt73usb_ops) },
2083         /* Senao */
2084         { USB_DEVICE(0x1740, 0x7100), USB_DEVICE_DATA(&rt73usb_ops) },
2085         /* Sitecom */
2086         { USB_DEVICE(0x0df6, 0x9712), USB_DEVICE_DATA(&rt73usb_ops) },
2087         { USB_DEVICE(0x0df6, 0x90ac), USB_DEVICE_DATA(&rt73usb_ops) },
2088         /* Surecom */
2089         { USB_DEVICE(0x0769, 0x31f3), USB_DEVICE_DATA(&rt73usb_ops) },
2090         /* Planex */
2091         { USB_DEVICE(0x2019, 0xab01), USB_DEVICE_DATA(&rt73usb_ops) },
2092         { USB_DEVICE(0x2019, 0xab50), USB_DEVICE_DATA(&rt73usb_ops) },
2093         { 0, }
2094 };
2095
2096 MODULE_AUTHOR(DRV_PROJECT);
2097 MODULE_VERSION(DRV_VERSION);
2098 MODULE_DESCRIPTION("Ralink RT73 USB Wireless LAN driver.");
2099 MODULE_SUPPORTED_DEVICE("Ralink RT2571W & RT2671 USB chipset based cards");
2100 MODULE_DEVICE_TABLE(usb, rt73usb_device_table);
2101 MODULE_FIRMWARE(FIRMWARE_RT2571);
2102 MODULE_LICENSE("GPL");
2103
2104 static struct usb_driver rt73usb_driver = {
2105         .name           = DRV_NAME,
2106         .id_table       = rt73usb_device_table,
2107         .probe          = rt2x00usb_probe,
2108         .disconnect     = rt2x00usb_disconnect,
2109         .suspend        = rt2x00usb_suspend,
2110         .resume         = rt2x00usb_resume,
2111 };
2112
2113 static int __init rt73usb_init(void)
2114 {
2115         return usb_register(&rt73usb_driver);
2116 }
2117
2118 static void __exit rt73usb_exit(void)
2119 {
2120         usb_deregister(&rt73usb_driver);
2121 }
2122
2123 module_init(rt73usb_init);
2124 module_exit(rt73usb_exit);