drivers/net/wireless/rt2x00/rt2500usb.c

   1 /*
   2         Copyright (C) 2004 - 2008 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: rt2500usb
  23         Abstract: rt2500usb device specific routines.
  24         Supported chipsets: RT2570.
  25  */
  26
  27 #include <linux/delay.h>
  28 #include <linux/etherdevice.h>
  29 #include <linux/init.h>
  30 #include <linux/kernel.h>
  31 #include <linux/module.h>
  32 #include <linux/usb.h>
  33
  34 #include "rt2x00.h"
  35 #include "rt2x00usb.h"
  36 #include "rt2500usb.h"
  37
  38 /*
  39  * Register access.
  40  * All access to the CSR registers will go through the methods
  41  * rt2500usb_register_read and rt2500usb_register_write.
  42  * BBP and RF register require indirect register access,
  43  * and use the CSR registers BBPCSR and RFCSR to achieve this.
  44  * These indirect registers work with busy bits,
  45  * and we will try maximal REGISTER_BUSY_COUNT times to access
  46  * the register while taking a REGISTER_BUSY_DELAY us delay
  47  * between each attampt. When the busy bit is still set at that time,
  48  * the access attempt is considered to have failed,
  49  * and we will print an error.
  50  * If the usb_cache_mutex is already held then the _lock variants must
  51  * be used instead.
  52  */
  53 static inline void rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
  54                                            const unsigned int offset,
  55                                            u16 *value)
  56 {
  57         __le16 reg;
  58         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
  59                                       USB_VENDOR_REQUEST_IN, offset,
  60                                       &reg, sizeof(u16), REGISTER_TIMEOUT);
  61         *value = le16_to_cpu(reg);
  62 }
  63
  64 static inline void rt2500usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
  65                                                 const unsigned int offset,
  66                                                 u16 *value)
  67 {
  68         __le16 reg;
  69         rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
  70                                        USB_VENDOR_REQUEST_IN, offset,
  71                                        &reg, sizeof(u16), REGISTER_TIMEOUT);
  72         *value = le16_to_cpu(reg);
  73 }
  74
  75 static inline void rt2500usb_register_multiread(struct rt2x00_dev *rt2x00dev,
  76                                                 const unsigned int offset,
  77                                                 void *value, const u16 length)
  78 {
  79         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
  80                                       USB_VENDOR_REQUEST_IN, offset,
  81                                       value, length,
  82                                       REGISTER_TIMEOUT16(length));
  83 }
  84
  85 static inline void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
  86                                             const unsigned int offset,
  87                                             u16 value)
  88 {
  89         __le16 reg = cpu_to_le16(value);
  90         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
  91                                       USB_VENDOR_REQUEST_OUT, offset,
  92                                       &reg, sizeof(u16), REGISTER_TIMEOUT);
  93 }
  94
  95 static inline void rt2500usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
  96                                                  const unsigned int offset,
  97                                                  u16 value)
  98 {
  99         __le16 reg = cpu_to_le16(value);
 100         rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
 101                                        USB_VENDOR_REQUEST_OUT, offset,
 102                                        &reg, sizeof(u16), REGISTER_TIMEOUT);
 103 }
 104
 105 static inline void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
 106                                                  const unsigned int offset,
 107                                                  void *value, const u16 length)
 108 {
 109         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
 110                                       USB_VENDOR_REQUEST_OUT, offset,
 111                                       value, length,
 112                                       REGISTER_TIMEOUT16(length));
 113 }
 114
 115 static u16 rt2500usb_bbp_check(struct rt2x00_dev *rt2x00dev)
 116 {
 117         u16 reg;
 118         unsigned int i;
 119
 120         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 121                 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR8, &reg);
 122                 if (!rt2x00_get_field16(reg, PHY_CSR8_BUSY))
 123                         break;
 124                 udelay(REGISTER_BUSY_DELAY);
 125         }
 126
 127         return reg;
 128 }
 129
 130 static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
 131                                 const unsigned int word, const u8 value)
 132 {
 133         u16 reg;
 134
 135         mutex_lock(&rt2x00dev->usb_cache_mutex);
 136
 137         /*
 138          * Wait until the BBP becomes ready.
 139          */
 140         reg = rt2500usb_bbp_check(rt2x00dev);
 141         if (rt2x00_get_field16(reg, PHY_CSR8_BUSY))
 142                 goto exit_fail;
 143
 144         /*
 145          * Write the data into the BBP.
 146          */
 147         reg = 0;
 148         rt2x00_set_field16(&reg, PHY_CSR7_DATA, value);
 149         rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
 150         rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 0);
 151
 152         rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
 153
 154         mutex_unlock(&rt2x00dev->usb_cache_mutex);
 155
 156         return;
 157
 158 exit_fail:
 159         mutex_unlock(&rt2x00dev->usb_cache_mutex);
 160
 161         ERROR(rt2x00dev, "PHY_CSR8 register busy. Write failed.\n");
 162 }
 163
 164 static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
 165                                const unsigned int word, u8 *value)
 166 {
 167         u16 reg;
 168
 169         mutex_lock(&rt2x00dev->usb_cache_mutex);
 170
 171         /*
 172          * Wait until the BBP becomes ready.
 173          */
 174         reg = rt2500usb_bbp_check(rt2x00dev);
 175         if (rt2x00_get_field16(reg, PHY_CSR8_BUSY))
 176                 goto exit_fail;
 177
 178         /*
 179          * Write the request into the BBP.
 180          */
 181         reg = 0;
 182         rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
 183         rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 1);
 184
 185         rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
 186
 187         /*
 188          * Wait until the BBP becomes ready.
 189          */
 190         reg = rt2500usb_bbp_check(rt2x00dev);
 191         if (rt2x00_get_field16(reg, PHY_CSR8_BUSY))
 192                 goto exit_fail;
 193
 194         rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, &reg);
 195         *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
 196
 197         mutex_unlock(&rt2x00dev->usb_cache_mutex);
 198
 199         return;
 200
 201 exit_fail:
 202         mutex_unlock(&rt2x00dev->usb_cache_mutex);
 203
 204         ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
 205         *value = 0xff;
 206 }
 207
 208 static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
 209                                const unsigned int word, const u32 value)
 210 {
 211         u16 reg;
 212         unsigned int i;
 213
 214         if (!word)
 215                 return;
 216
 217         mutex_lock(&rt2x00dev->usb_cache_mutex);
 218
 219         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 220                 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR10, &reg);
 221                 if (!rt2x00_get_field16(reg, PHY_CSR10_RF_BUSY))
 222                         goto rf_write;
 223                 udelay(REGISTER_BUSY_DELAY);
 224         }
 225
 226         mutex_unlock(&rt2x00dev->usb_cache_mutex);
 227         ERROR(rt2x00dev, "PHY_CSR10 register busy. Write failed.\n");
 228         return;
 229
 230 rf_write:
 231         reg = 0;
 232         rt2x00_set_field16(&reg, PHY_CSR9_RF_VALUE, value);
 233         rt2500usb_register_write_lock(rt2x00dev, PHY_CSR9, reg);
 234
 235         reg = 0;
 236         rt2x00_set_field16(&reg, PHY_CSR10_RF_VALUE, value >> 16);
 237         rt2x00_set_field16(&reg, PHY_CSR10_RF_NUMBER_OF_BITS, 20);
 238         rt2x00_set_field16(&reg, PHY_CSR10_RF_IF_SELECT, 0);
 239         rt2x00_set_field16(&reg, PHY_CSR10_RF_BUSY, 1);
 240
 241         rt2500usb_register_write_lock(rt2x00dev, PHY_CSR10, reg);
 242         rt2x00_rf_write(rt2x00dev, word, value);
 243
 244         mutex_unlock(&rt2x00dev->usb_cache_mutex);
 245 }
 246
 247 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 248 #define CSR_OFFSET(__word)      ( CSR_REG_BASE + ((__word) * sizeof(u16)) )
 249
 250 static void rt2500usb_read_csr(struct rt2x00_dev *rt2x00dev,
 251                                const unsigned int word, u32 *data)
 252 {
 253         rt2500usb_register_read(rt2x00dev, CSR_OFFSET(word), (u16 *) data);
 254 }
 255
 256 static void rt2500usb_write_csr(struct rt2x00_dev *rt2x00dev,
 257                                 const unsigned int word, u32 data)
 258 {
 259         rt2500usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
 260 }
 261
 262 static const struct rt2x00debug rt2500usb_rt2x00debug = {
 263         .owner  = THIS_MODULE,
 264         .csr    = {
 265                 .read           = rt2500usb_read_csr,
 266                 .write          = rt2500usb_write_csr,
 267                 .word_size      = sizeof(u16),
 268                 .word_count     = CSR_REG_SIZE / sizeof(u16),
 269         },
 270         .eeprom = {
 271                 .read           = rt2x00_eeprom_read,
 272                 .write          = rt2x00_eeprom_write,
 273                 .word_size      = sizeof(u16),
 274                 .word_count     = EEPROM_SIZE / sizeof(u16),
 275         },
 276         .bbp    = {
 277                 .read           = rt2500usb_bbp_read,
 278                 .write          = rt2500usb_bbp_write,
 279                 .word_size      = sizeof(u8),
 280                 .word_count     = BBP_SIZE / sizeof(u8),
 281         },
 282         .rf     = {
 283                 .read           = rt2x00_rf_read,
 284                 .write          = rt2500usb_rf_write,
 285                 .word_size      = sizeof(u32),
 286                 .word_count     = RF_SIZE / sizeof(u32),
 287         },
 288 };
 289 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 290
 291 #ifdef CONFIG_RT2500USB_LEDS
 292 static void rt2500usb_brightness_set(struct led_classdev *led_cdev,
 293                                      enum led_brightness brightness)
 294 {
 295         struct rt2x00_led *led =
 296             container_of(led_cdev, struct rt2x00_led, led_dev);
 297         unsigned int enabled = brightness != LED_OFF;
 298         u16 reg;
 299
 300         rt2500usb_register_read(led->rt2x00dev, MAC_CSR20, &reg);
 301
 302         if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
 303                 rt2x00_set_field16(&reg, MAC_CSR20_LINK, enabled);
 304         else if (led->type == LED_TYPE_ACTIVITY)
 305                 rt2x00_set_field16(&reg, MAC_CSR20_ACTIVITY, enabled);
 306
 307         rt2500usb_register_write(led->rt2x00dev, MAC_CSR20, reg);
 308 }
 309
 310 static int rt2500usb_blink_set(struct led_classdev *led_cdev,
 311                                unsigned long *delay_on,
 312                                unsigned long *delay_off)
 313 {
 314         struct rt2x00_led *led =
 315             container_of(led_cdev, struct rt2x00_led, led_dev);
 316         u16 reg;
 317
 318         rt2500usb_register_read(led->rt2x00dev, MAC_CSR21, &reg);
 319         rt2x00_set_field16(&reg, MAC_CSR21_ON_PERIOD, *delay_on);
 320         rt2x00_set_field16(&reg, MAC_CSR21_OFF_PERIOD, *delay_off);
 321         rt2500usb_register_write(led->rt2x00dev, MAC_CSR21, reg);
 322
 323         return 0;
 324 }
 325
 326 static void rt2500usb_init_led(struct rt2x00_dev *rt2x00dev,
 327                                struct rt2x00_led *led,
 328                                enum led_type type)
 329 {
 330         led->rt2x00dev = rt2x00dev;
 331         led->type = type;
 332         led->led_dev.brightness_set = rt2500usb_brightness_set;
 333         led->led_dev.blink_set = rt2500usb_blink_set;
 334         led->flags = LED_INITIALIZED;
 335 }
 336 #endif /* CONFIG_RT2500USB_LEDS */
 337
 338 /*
 339  * Configuration handlers.
 340  */
 341 static void rt2500usb_config_filter(struct rt2x00_dev *rt2x00dev,
 342                                     const unsigned int filter_flags)
 343 {
 344         u16 reg;
 345
 346         /*
 347          * Start configuration steps.
 348          * Note that the version error will always be dropped
 349          * and broadcast frames will always be accepted since
 350          * there is no filter for it at this time.
 351          */
 352         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 353         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC,
 354                            !(filter_flags & FIF_FCSFAIL));
 355         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL,
 356                            !(filter_flags & FIF_PLCPFAIL));
 357         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL,
 358                            !(filter_flags & FIF_CONTROL));
 359         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME,
 360                            !(filter_flags & FIF_PROMISC_IN_BSS));
 361         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS,
 362                            !(filter_flags & FIF_PROMISC_IN_BSS) &&
 363                            !rt2x00dev->intf_ap_count);
 364         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
 365         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_MULTICAST,
 366                            !(filter_flags & FIF_ALLMULTI));
 367         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_BROADCAST, 0);
 368         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 369 }
 370
 371 static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
 372                                   struct rt2x00_intf *intf,
 373                                   struct rt2x00intf_conf *conf,
 374                                   const unsigned int flags)
 375 {
 376         unsigned int bcn_preload;
 377         u16 reg;
 378
 379         if (flags & CONFIG_UPDATE_TYPE) {
 380                 /*
 381                  * Enable beacon config
 382                  */
 383                 bcn_preload = PREAMBLE + get_duration(IEEE80211_HEADER, 20);
 384                 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, &reg);
 385                 rt2x00_set_field16(&reg, TXRX_CSR20_OFFSET, bcn_preload >> 6);
 386                 rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW,
 387                                    2 * (conf->type != IEEE80211_IF_TYPE_STA));
 388                 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
 389
 390                 /*
 391                  * Enable synchronisation.
 392                  */
 393                 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
 394                 rt2x00_set_field16(&reg, TXRX_CSR18_OFFSET, 0);
 395                 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
 396
 397                 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 398                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
 399                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, conf->sync);
 400                 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
 401                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 402         }
 403
 404         if (flags & CONFIG_UPDATE_MAC)
 405                 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac,
 406                                               (3 * sizeof(__le16)));
 407
 408         if (flags & CONFIG_UPDATE_BSSID)
 409                 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid,
 410                                               (3 * sizeof(__le16)));
 411 }
 412
 413 static void rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev,
 414                                  struct rt2x00lib_erp *erp)
 415 {
 416         u16 reg;
 417
 418         rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
 419         rt2x00_set_field16(&reg, TXRX_CSR1_ACK_TIMEOUT, erp->ack_timeout);
 420         rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
 421
 422         rt2500usb_register_read(rt2x00dev, TXRX_CSR10, &reg);
 423         rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE,
 424                            !!erp->short_preamble);
 425         rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
 426 }
 427
 428 static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev,
 429                                      const int basic_rate_mask)
 430 {
 431         rt2500usb_register_write(rt2x00dev, TXRX_CSR11, basic_rate_mask);
 432 }
 433
 434 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
 435                                      struct rf_channel *rf, const int txpower)
 436 {
 437         /*
 438          * Set TXpower.
 439          */
 440         rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 441
 442         /*
 443          * For RT2525E we should first set the channel to half band higher.
 444          */
 445         if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
 446                 static const u32 vals[] = {
 447                         0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
 448                         0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
 449                         0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
 450                         0x00000902, 0x00000906
 451                 };
 452
 453                 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
 454                 if (rf->rf4)
 455                         rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
 456         }
 457
 458         rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
 459         rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
 460         rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
 461         if (rf->rf4)
 462                 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
 463 }
 464
 465 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
 466                                      const int txpower)
 467 {
 468         u32 rf3;
 469
 470         rt2x00_rf_read(rt2x00dev, 3, &rf3);
 471         rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 472         rt2500usb_rf_write(rt2x00dev, 3, rf3);
 473 }
 474
 475 static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
 476                                      struct antenna_setup *ant)
 477 {
 478         u8 r2;
 479         u8 r14;
 480         u16 csr5;
 481         u16 csr6;
 482
 483         /*
 484          * We should never come here because rt2x00lib is supposed
 485          * to catch this and send us the correct antenna explicitely.
 486          */
 487         BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
 488                ant->tx == ANTENNA_SW_DIVERSITY);
 489
 490         rt2500usb_bbp_read(rt2x00dev, 2, &r2);
 491         rt2500usb_bbp_read(rt2x00dev, 14, &r14);
 492         rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
 493         rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
 494
 495         /*
 496          * Configure the TX antenna.
 497          */
 498         switch (ant->tx) {
 499         case ANTENNA_HW_DIVERSITY:
 500                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
 501                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
 502                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
 503                 break;
 504         case ANTENNA_A:
 505                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
 506                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
 507                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
 508                 break;
 509         case ANTENNA_B:
 510         default:
 511                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
 512                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
 513                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
 514                 break;
 515         }
 516
 517         /*
 518          * Configure the RX antenna.
 519          */
 520         switch (ant->rx) {
 521         case ANTENNA_HW_DIVERSITY:
 522                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
 523                 break;
 524         case ANTENNA_A:
 525                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
 526                 break;
 527         case ANTENNA_B:
 528         default:
 529                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
 530                 break;
 531         }
 532
 533         /*
 534          * RT2525E and RT5222 need to flip TX I/Q
 535          */
 536         if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
 537             rt2x00_rf(&rt2x00dev->chip, RF5222)) {
 538                 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
 539                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
 540                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
 541
 542                 /*
 543                  * RT2525E does not need RX I/Q Flip.
 544                  */
 545                 if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
 546                         rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
 547         } else {
 548                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
 549                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
 550         }
 551
 552         rt2500usb_bbp_write(rt2x00dev, 2, r2);
 553         rt2500usb_bbp_write(rt2x00dev, 14, r14);
 554         rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
 555         rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
 556 }
 557
 558 static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev,
 559                                       struct rt2x00lib_conf *libconf)
 560 {
 561         u16 reg;
 562
 563         rt2500usb_register_write(rt2x00dev, MAC_CSR10, libconf->slot_time);
 564         rt2500usb_register_write(rt2x00dev, MAC_CSR11, libconf->sifs);
 565         rt2500usb_register_write(rt2x00dev, MAC_CSR12, libconf->eifs);
 566
 567         rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
 568         rt2x00_set_field16(&reg, TXRX_CSR18_INTERVAL,
 569                            libconf->conf->beacon_int * 4);
 570         rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
 571 }
 572
 573 static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
 574                              struct rt2x00lib_conf *libconf,
 575                              const unsigned int flags)
 576 {
 577         if (flags & CONFIG_UPDATE_PHYMODE)
 578                 rt2500usb_config_phymode(rt2x00dev, libconf->basic_rates);
 579         if (flags & CONFIG_UPDATE_CHANNEL)
 580                 rt2500usb_config_channel(rt2x00dev, &libconf->rf,
 581                                          libconf->conf->power_level);
 582         if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
 583                 rt2500usb_config_txpower(rt2x00dev,
 584                                          libconf->conf->power_level);
 585         if (flags & CONFIG_UPDATE_ANTENNA)
 586                 rt2500usb_config_antenna(rt2x00dev, &libconf->ant);
 587         if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
 588                 rt2500usb_config_duration(rt2x00dev, libconf);
 589 }
 590
 591 /*
 592  * Link tuning
 593  */
 594 static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
 595                                  struct link_qual *qual)
 596 {
 597         u16 reg;
 598
 599         /*
 600          * Update FCS error count from register.
 601          */
 602         rt2500usb_register_read(rt2x00dev, STA_CSR0, &reg);
 603         qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
 604
 605         /*
 606          * Update False CCA count from register.
 607          */
 608         rt2500usb_register_read(rt2x00dev, STA_CSR3, &reg);
 609         qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
 610 }
 611
 612 static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
 613 {
 614         u16 eeprom;
 615         u16 value;
 616
 617         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
 618         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
 619         rt2500usb_bbp_write(rt2x00dev, 24, value);
 620
 621         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
 622         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
 623         rt2500usb_bbp_write(rt2x00dev, 25, value);
 624
 625         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
 626         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
 627         rt2500usb_bbp_write(rt2x00dev, 61, value);
 628
 629         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
 630         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
 631         rt2500usb_bbp_write(rt2x00dev, 17, value);
 632
 633         rt2x00dev->link.vgc_level = value;
 634 }
 635
 636 /*
 637  * NOTE: This function is directly ported from legacy driver, but
 638  * despite it being declared it was never called. Although link tuning
 639  * sounds like a good idea, and usually works well for the other drivers,
 640  * it does _not_ work with rt2500usb. Enabling this function will result
 641  * in TX capabilities only until association kicks in. Immediately
 642  * after the successful association all TX frames will be kept in the
 643  * hardware queue and never transmitted.
 644  */
 645 #if 0
 646 static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
 647 {
 648         int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
 649         u16 bbp_thresh;
 650         u16 vgc_bound;
 651         u16 sens;
 652         u16 r24;
 653         u16 r25;
 654         u16 r61;
 655         u16 r17_sens;
 656         u8 r17;
 657         u8 up_bound;
 658         u8 low_bound;
 659
 660         /*
 661          * Read current r17 value, as well as the sensitivity values
 662          * for the r17 register.
 663          */
 664         rt2500usb_bbp_read(rt2x00dev, 17, &r17);
 665         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
 666
 667         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
 668         up_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
 669         low_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCLOWER);
 670
 671         /*
 672          * If we are not associated, we should go straight to the
 673          * dynamic CCA tuning.
 674          */
 675         if (!rt2x00dev->intf_associated)
 676                 goto dynamic_cca_tune;
 677
 678         /*
 679          * Determine the BBP tuning threshold and correctly
 680          * set BBP 24, 25 and 61.
 681          */
 682         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
 683         bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
 684
 685         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
 686         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
 687         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
 688
 689         if ((rssi + bbp_thresh) > 0) {
 690                 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
 691                 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
 692                 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
 693         } else {
 694                 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
 695                 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
 696                 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
 697         }
 698
 699         rt2500usb_bbp_write(rt2x00dev, 24, r24);
 700         rt2500usb_bbp_write(rt2x00dev, 25, r25);
 701         rt2500usb_bbp_write(rt2x00dev, 61, r61);
 702
 703         /*
 704          * A too low RSSI will cause too much false CCA which will
 705          * then corrupt the R17 tuning. To remidy this the tuning should
 706          * be stopped (While making sure the R17 value will not exceed limits)
 707          */
 708         if (rssi >= -40) {
 709                 if (r17 != 0x60)
 710                         rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
 711                 return;
 712         }
 713
 714         /*
 715          * Special big-R17 for short distance
 716          */
 717         if (rssi >= -58) {
 718                 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
 719                 if (r17 != sens)
 720                         rt2500usb_bbp_write(rt2x00dev, 17, sens);
 721                 return;
 722         }
 723
 724         /*
 725          * Special mid-R17 for middle distance
 726          */
 727         if (rssi >= -74) {
 728                 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
 729                 if (r17 != sens)
 730                         rt2500usb_bbp_write(rt2x00dev, 17, sens);
 731                 return;
 732         }
 733
 734         /*
 735          * Leave short or middle distance condition, restore r17
 736          * to the dynamic tuning range.
 737          */
 738         low_bound = 0x32;
 739         if (rssi < -77)
 740                 up_bound -= (-77 - rssi);
 741
 742         if (up_bound < low_bound)
 743                 up_bound = low_bound;
 744
 745         if (r17 > up_bound) {
 746                 rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
 747                 rt2x00dev->link.vgc_level = up_bound;
 748                 return;
 749         }
 750
 751 dynamic_cca_tune:
 752
 753         /*
 754          * R17 is inside the dynamic tuning range,
 755          * start tuning the link based on the false cca counter.
 756          */
 757         if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
 758                 rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
 759                 rt2x00dev->link.vgc_level = r17;
 760         } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
 761                 rt2500usb_bbp_write(rt2x00dev, 17, --r17);
 762                 rt2x00dev->link.vgc_level = r17;
 763         }
 764 }
 765 #else
 766 #define rt2500usb_link_tuner    NULL
 767 #endif
 768
 769 /*
 770  * Initialization functions.
 771  */
 772 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
 773 {
 774         u16 reg;
 775
 776         rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
 777                                     USB_MODE_TEST, REGISTER_TIMEOUT);
 778         rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
 779                                     0x00f0, REGISTER_TIMEOUT);
 780
 781         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 782         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
 783         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 784
 785         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
 786         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
 787
 788         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 789         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 1);
 790         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 1);
 791         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 792         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 793
 794         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 795         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 796         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 797         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 798         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 799
 800         rt2500usb_register_read(rt2x00dev, TXRX_CSR5, &reg);
 801         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0, 13);
 802         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0_VALID, 1);
 803         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1, 12);
 804         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1_VALID, 1);
 805         rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
 806
 807         rt2500usb_register_read(rt2x00dev, TXRX_CSR6, &reg);
 808         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0, 10);
 809         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0_VALID, 1);
 810         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1, 11);
 811         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1_VALID, 1);
 812         rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
 813
 814         rt2500usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
 815         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0, 7);
 816         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0_VALID, 1);
 817         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1, 6);
 818         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1_VALID, 1);
 819         rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
 820
 821         rt2500usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
 822         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0, 5);
 823         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0_VALID, 1);
 824         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1, 0);
 825         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1_VALID, 0);
 826         rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
 827
 828         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 829         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 0);
 830         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 0);
 831         rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 0);
 832         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
 833         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 834
 835         rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
 836         rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
 837
 838         if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
 839                 return -EBUSY;
 840
 841         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 842         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 843         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 844         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 1);
 845         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 846
 847         if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
 848                 rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
 849                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 0);
 850         } else {
 851                 reg = 0;
 852                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 1);
 853                 rt2x00_set_field16(&reg, PHY_CSR2_LNA_MODE, 3);
 854         }
 855         rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
 856
 857         rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
 858         rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
 859         rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
 860         rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
 861
 862         rt2500usb_register_read(rt2x00dev, MAC_CSR8, &reg);
 863         rt2x00_set_field16(&reg, MAC_CSR8_MAX_FRAME_UNIT,
 864                            rt2x00dev->rx->data_size);
 865         rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
 866
 867         rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 868         rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
 869         rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0xff);
 870         rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 871
 872         rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 873         rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON, 90);
 874         rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 875
 876         rt2500usb_register_read(rt2x00dev, PHY_CSR4, &reg);
 877         rt2x00_set_field16(&reg, PHY_CSR4_LOW_RF_LE, 1);
 878         rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
 879
 880         rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
 881         rt2x00_set_field16(&reg, TXRX_CSR1_AUTO_SEQUENCE, 1);
 882         rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
 883
 884         return 0;
 885 }
 886
 887 static int rt2500usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
 888 {
 889         unsigned int i;
 890         u8 value;
 891
 892         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 893                 rt2500usb_bbp_read(rt2x00dev, 0, &value);
 894                 if ((value != 0xff) && (value != 0x00))
 895                         return 0;
 896                 udelay(REGISTER_BUSY_DELAY);
 897         }
 898
 899         ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
 900         return -EACCES;
 901 }
 902
 903 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
 904 {
 905         unsigned int i;
 906         u16 eeprom;
 907         u8 value;
 908         u8 reg_id;
 909
 910         if (unlikely(rt2500usb_wait_bbp_ready(rt2x00dev)))
 911                 return -EACCES;
 912
 913         rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
 914         rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
 915         rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
 916         rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
 917         rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
 918         rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
 919         rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
 920         rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
 921         rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
 922         rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
 923         rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
 924         rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
 925         rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
 926         rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
 927         rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
 928         rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
 929         rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
 930         rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
 931         rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
 932         rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
 933         rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
 934         rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
 935         rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
 936         rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
 937         rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
 938         rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
 939         rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
 940         rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
 941         rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
 942         rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
 943         rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
 944
 945         for (i = 0; i < EEPROM_BBP_SIZE; i++) {
 946                 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
 947
 948                 if (eeprom != 0xffff && eeprom != 0x0000) {
 949                         reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
 950                         value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
 951                         rt2500usb_bbp_write(rt2x00dev, reg_id, value);
 952                 }
 953         }
 954
 955         return 0;
 956 }
 957
 958 /*
 959  * Device state switch handlers.
 960  */
 961 static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
 962                                 enum dev_state state)
 963 {
 964         u16 reg;
 965
 966         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 967         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX,
 968                            (state == STATE_RADIO_RX_OFF) ||
 969                            (state == STATE_RADIO_RX_OFF_LINK));
 970         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 971 }
 972
 973 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
 974 {
 975         /*
 976          * Initialize all registers.
 977          */
 978         if (unlikely(rt2500usb_init_registers(rt2x00dev) ||
 979                      rt2500usb_init_bbp(rt2x00dev)))
 980                 return -EIO;
 981
 982         return 0;
 983 }
 984
 985 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
 986 {
 987         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
 988         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
 989
 990         /*
 991          * Disable synchronisation.
 992          */
 993         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
 994
 995         rt2x00usb_disable_radio(rt2x00dev);
 996 }
 997
 998 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
 999                                enum dev_state state)
1000 {
1001         u16 reg;
1002         u16 reg2;
1003         unsigned int i;
1004         char put_to_sleep;
1005         char bbp_state;
1006         char rf_state;
1007
1008         put_to_sleep = (state != STATE_AWAKE);
1009
1010         reg = 0;
1011         rt2x00_set_field16(&reg, MAC_CSR17_BBP_DESIRE_STATE, state);
1012         rt2x00_set_field16(&reg, MAC_CSR17_RF_DESIRE_STATE, state);
1013         rt2x00_set_field16(&reg, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
1014         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1015         rt2x00_set_field16(&reg, MAC_CSR17_SET_STATE, 1);
1016         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1017
1018         /*
1019          * Device is not guaranteed to be in the requested state yet.
1020          * We must wait until the register indicates that the
1021          * device has entered the correct state.
1022          */
1023         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1024                 rt2500usb_register_read(rt2x00dev, MAC_CSR17, &reg2);
1025                 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
1026                 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
1027                 if (bbp_state == state && rf_state == state)
1028                         return 0;
1029                 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1030                 msleep(30);
1031         }
1032
1033         return -EBUSY;
1034 }
1035
1036 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1037                                       enum dev_state state)
1038 {
1039         int retval = 0;
1040
1041         switch (state) {
1042         case STATE_RADIO_ON:
1043                 retval = rt2500usb_enable_radio(rt2x00dev);
1044                 break;
1045         case STATE_RADIO_OFF:
1046                 rt2500usb_disable_radio(rt2x00dev);
1047                 break;
1048         case STATE_RADIO_RX_ON:
1049         case STATE_RADIO_RX_ON_LINK:
1050         case STATE_RADIO_RX_OFF:
1051         case STATE_RADIO_RX_OFF_LINK:
1052                 rt2500usb_toggle_rx(rt2x00dev, state);
1053                 break;
1054         case STATE_RADIO_IRQ_ON:
1055         case STATE_RADIO_IRQ_OFF:
1056                 /* No support, but no error either */
1057                 break;
1058         case STATE_DEEP_SLEEP:
1059         case STATE_SLEEP:
1060         case STATE_STANDBY:
1061         case STATE_AWAKE:
1062                 retval = rt2500usb_set_state(rt2x00dev, state);
1063                 break;
1064         default:
1065                 retval = -ENOTSUPP;
1066                 break;
1067         }
1068
1069         if (unlikely(retval))
1070                 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
1071                       state, retval);
1072
1073         return retval;
1074 }
1075
1076 /*
1077  * TX descriptor initialization
1078  */
1079 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1080                                     struct sk_buff *skb,
1081                                     struct txentry_desc *txdesc)
1082 {
1083         struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1084         __le32 *txd = skbdesc->desc;
1085         u32 word;
1086
1087         /*
1088          * Start writing the descriptor words.
1089          */
1090         rt2x00_desc_read(txd, 1, &word);
1091         rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1092         rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1093         rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1094         rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1095         rt2x00_desc_write(txd, 1, word);
1096
1097         rt2x00_desc_read(txd, 2, &word);
1098         rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1099         rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1100         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1101         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1102         rt2x00_desc_write(txd, 2, word);
1103
1104         rt2x00_desc_read(txd, 0, &word);
1105         rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, txdesc->retry_limit);
1106         rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1107                            test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1108         rt2x00_set_field32(&word, TXD_W0_ACK,
1109                            test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1110         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1111                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1112         rt2x00_set_field32(&word, TXD_W0_OFDM,
1113                            test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
1114         rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1115                            test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
1116         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1117         rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skb->len);
1118         rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
1119         rt2x00_desc_write(txd, 0, word);
1120 }
1121
1122 /*
1123  * TX data initialization
1124  */
1125 static void rt2500usb_beacondone(struct urb *urb);
1126
1127 static void rt2500usb_write_beacon(struct queue_entry *entry)
1128 {
1129         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1130         struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
1131         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1132         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1133         int pipe = usb_sndbulkpipe(usb_dev, 1);
1134         int length;
1135         u16 reg;
1136         u32 word, len;
1137
1138         /*
1139          * Add the descriptor in front of the skb.
1140          */
1141         skb_push(entry->skb, entry->queue->desc_size);
1142         memcpy(entry->skb->data, skbdesc->desc, skbdesc->desc_len);
1143         skbdesc->desc = entry->skb->data;
1144
1145         /*
1146          * Adjust the beacon databyte count. The current number is
1147          * calculated before this function gets called, but falsely
1148          * assumes that the descriptor was already present in the SKB.
1149          */
1150         rt2x00_desc_read(skbdesc->desc, 0, &word);
1151         len  = rt2x00_get_field32(word, TXD_W0_DATABYTE_COUNT);
1152         len += skbdesc->desc_len;
1153         rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, len);
1154         rt2x00_desc_write(skbdesc->desc, 0, word);
1155
1156         /*
1157          * Disable beaconing while we are reloading the beacon data,
1158          * otherwise we might be sending out invalid data.
1159          */
1160         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1161         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 0);
1162         rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 0);
1163         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
1164         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1165
1166         /*
1167          * USB devices cannot blindly pass the skb->len as the
1168          * length of the data to usb_fill_bulk_urb. Pass the skb
1169          * to the driver to determine what the length should be.
1170          */
1171         length = rt2x00dev->ops->lib->get_tx_data_len(rt2x00dev, entry->skb);
1172
1173         usb_fill_bulk_urb(bcn_priv->urb, usb_dev, pipe,
1174                           entry->skb->data, length, rt2500usb_beacondone,
1175                           entry);
1176
1177         /*
1178          * Second we need to create the guardian byte.
1179          * We only need a single byte, so lets recycle
1180          * the 'flags' field we are not using for beacons.
1181          */
1182         bcn_priv->guardian_data = 0;
1183         usb_fill_bulk_urb(bcn_priv->guardian_urb, usb_dev, pipe,
1184                           &bcn_priv->guardian_data, 1, rt2500usb_beacondone,
1185                           entry);
1186
1187         /*
1188          * Send out the guardian byte.
1189          */
1190         usb_submit_urb(bcn_priv->guardian_urb, GFP_ATOMIC);
1191 }
1192
1193 static int rt2500usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
1194                                      struct sk_buff *skb)
1195 {
1196         int length;
1197
1198         /*
1199          * The length _must_ be a multiple of 2,
1200          * but it must _not_ be a multiple of the USB packet size.
1201          */
1202         length = roundup(skb->len, 2);
1203         length += (2 * !(length % rt2x00dev->usb_maxpacket));
1204
1205         return length;
1206 }
1207
1208 static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1209                                     const enum data_queue_qid queue)
1210 {
1211         u16 reg;
1212
1213         if (queue != QID_BEACON) {
1214                 rt2x00usb_kick_tx_queue(rt2x00dev, queue);
1215                 return;
1216         }
1217
1218         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1219         if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
1220                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
1221                 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
1222                 rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
1223                 /*
1224                  * Beacon generation will fail initially.
1225                  * To prevent this we need to register the TXRX_CSR19
1226                  * register several times.
1227                  */
1228                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1229                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1230                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1231                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1232                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1233         }
1234 }
1235
1236 /*
1237  * RX control handlers
1238  */
1239 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1240                                   struct rxdone_entry_desc *rxdesc)
1241 {
1242         struct queue_entry_priv_usb *entry_priv = entry->priv_data;
1243         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1244         __le32 *rxd =
1245             (__le32 *)(entry->skb->data +
1246                        (entry_priv->urb->actual_length -
1247                         entry->queue->desc_size));
1248         u32 word0;
1249         u32 word1;
1250
1251         /*
1252          * Copy descriptor to the skbdesc->desc buffer, making it safe from moving of
1253          * frame data in rt2x00usb.
1254          */
1255         memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
1256         rxd = (__le32 *)skbdesc->desc;
1257
1258         /*
1259          * It is now safe to read the descriptor on all architectures.
1260          */
1261         rt2x00_desc_read(rxd, 0, &word0);
1262         rt2x00_desc_read(rxd, 1, &word1);
1263
1264         if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1265                 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1266         if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1267                 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1268
1269         /*
1270          * Obtain the status about this packet.
1271          * When frame was received with an OFDM bitrate,
1272          * the signal is the PLCP value. If it was received with
1273          * a CCK bitrate the signal is the rate in 100kbit/s.
1274          */
1275         rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1276         rxdesc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
1277             entry->queue->rt2x00dev->rssi_offset;
1278         rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1279
1280         if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1281                 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1282         else
1283                 rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
1284         if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1285                 rxdesc->dev_flags |= RXDONE_MY_BSS;
1286
1287         /*
1288          * Adjust the skb memory window to the frame boundaries.
1289          */
1290         skb_trim(entry->skb, rxdesc->size);
1291 }
1292
1293 /*
1294  * Interrupt functions.
1295  */
1296 static void rt2500usb_beacondone(struct urb *urb)
1297 {
1298         struct queue_entry *entry = (struct queue_entry *)urb->context;
1299         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1300
1301         if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1302                 return;
1303
1304         /*
1305          * Check if this was the guardian beacon,
1306          * if that was the case we need to send the real beacon now.
1307          * Otherwise we should free the sk_buffer, the device
1308          * should be doing the rest of the work now.
1309          */
1310         if (bcn_priv->guardian_urb == urb) {
1311                 usb_submit_urb(bcn_priv->urb, GFP_ATOMIC);
1312         } else if (bcn_priv->urb == urb) {
1313                 dev_kfree_skb(entry->skb);
1314                 entry->skb = NULL;
1315         }
1316 }
1317
1318 /*
1319  * Device probe functions.
1320  */
1321 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1322 {
1323         u16 word;
1324         u8 *mac;
1325         u8 bbp;
1326
1327         rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1328
1329         /*
1330          * Start validation of the data that has been read.
1331          */
1332         mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1333         if (!is_valid_ether_addr(mac)) {
1334                 DECLARE_MAC_BUF(macbuf);
1335
1336                 random_ether_addr(mac);
1337                 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
1338         }
1339
1340         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1341         if (word == 0xffff) {
1342                 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1343                 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1344                                    ANTENNA_SW_DIVERSITY);
1345                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1346                                    ANTENNA_SW_DIVERSITY);
1347                 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1348                                    LED_MODE_DEFAULT);
1349                 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1350                 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1351                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1352                 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1353                 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1354         }
1355
1356         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1357         if (word == 0xffff) {
1358                 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1359                 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1360                 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1361                 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1362                 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1363         }
1364
1365         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1366         if (word == 0xffff) {
1367                 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1368                                    DEFAULT_RSSI_OFFSET);
1369                 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1370                 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1371         }
1372
1373         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1374         if (word == 0xffff) {
1375                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1376                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1377                 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1378         }
1379
1380         /*
1381          * Switch lower vgc bound to current BBP R17 value,
1382          * lower the value a bit for better quality.
1383          */
1384         rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1385         bbp -= 6;
1386
1387         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1388         if (word == 0xffff) {
1389                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1390                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1391                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1392                 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1393         } else {
1394                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1395                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1396         }
1397
1398         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1399         if (word == 0xffff) {
1400                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1401                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1402                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1403                 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1404         }
1405
1406         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1407         if (word == 0xffff) {
1408                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1409                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1410                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1411                 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1412         }
1413
1414         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1415         if (word == 0xffff) {
1416                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1417                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1418                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1419                 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1420         }
1421
1422         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1423         if (word == 0xffff) {
1424                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1425                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1426                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1427                 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1428         }
1429
1430         return 0;
1431 }
1432
1433 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1434 {
1435         u16 reg;
1436         u16 value;
1437         u16 eeprom;
1438
1439         /*
1440          * Read EEPROM word for configuration.
1441          */
1442         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1443
1444         /*
1445          * Identify RF chipset.
1446          */
1447         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1448         rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1449         rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1450
1451         if (!rt2x00_check_rev(&rt2x00dev->chip, 0)) {
1452                 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1453                 return -ENODEV;
1454         }
1455
1456         if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
1457             !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
1458             !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
1459             !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
1460             !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
1461             !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1462                 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1463                 return -ENODEV;
1464         }
1465
1466         /*
1467          * Identify default antenna configuration.
1468          */
1469         rt2x00dev->default_ant.tx =
1470             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1471         rt2x00dev->default_ant.rx =
1472             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1473
1474         /*
1475          * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1476          * I am not 100% sure about this, but the legacy drivers do not
1477          * indicate antenna swapping in software is required when
1478          * diversity is enabled.
1479          */
1480         if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1481                 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1482         if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1483                 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1484
1485         /*
1486          * Store led mode, for correct led behaviour.
1487          */
1488 #ifdef CONFIG_RT2500USB_LEDS
1489         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1490
1491         rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
1492         if (value == LED_MODE_TXRX_ACTIVITY)
1493                 rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
1494                                    LED_TYPE_ACTIVITY);
1495 #endif /* CONFIG_RT2500USB_LEDS */
1496
1497         /*
1498          * Check if the BBP tuning should be disabled.
1499          */
1500         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1501         if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1502                 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1503
1504         /*
1505          * Read the RSSI <-> dBm offset information.
1506          */
1507         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1508         rt2x00dev->rssi_offset =
1509             rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1510
1511         return 0;
1512 }
1513
1514 /*
1515  * RF value list for RF2522
1516  * Supports: 2.4 GHz
1517  */
1518 static const struct rf_channel rf_vals_bg_2522[] = {
1519         { 1,  0x00002050, 0x000c1fda, 0x00000101, 0 },
1520         { 2,  0x00002050, 0x000c1fee, 0x00000101, 0 },
1521         { 3,  0x00002050, 0x000c2002, 0x00000101, 0 },
1522         { 4,  0x00002050, 0x000c2016, 0x00000101, 0 },
1523         { 5,  0x00002050, 0x000c202a, 0x00000101, 0 },
1524         { 6,  0x00002050, 0x000c203e, 0x00000101, 0 },
1525         { 7,  0x00002050, 0x000c2052, 0x00000101, 0 },
1526         { 8,  0x00002050, 0x000c2066, 0x00000101, 0 },
1527         { 9,  0x00002050, 0x000c207a, 0x00000101, 0 },
1528         { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1529         { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1530         { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1531         { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1532         { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1533 };
1534
1535 /*
1536  * RF value list for RF2523
1537  * Supports: 2.4 GHz
1538  */
1539 static const struct rf_channel rf_vals_bg_2523[] = {
1540         { 1,  0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1541         { 2,  0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1542         { 3,  0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1543         { 4,  0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1544         { 5,  0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1545         { 6,  0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1546         { 7,  0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1547         { 8,  0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1548         { 9,  0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1549         { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1550         { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1551         { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1552         { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1553         { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1554 };
1555
1556 /*
1557  * RF value list for RF2524
1558  * Supports: 2.4 GHz
1559  */
1560 static const struct rf_channel rf_vals_bg_2524[] = {
1561         { 1,  0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1562         { 2,  0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1563         { 3,  0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1564         { 4,  0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1565         { 5,  0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1566         { 6,  0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1567         { 7,  0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1568         { 8,  0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1569         { 9,  0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1570         { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1571         { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1572         { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1573         { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1574         { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1575 };
1576
1577 /*
1578  * RF value list for RF2525
1579  * Supports: 2.4 GHz
1580  */
1581 static const struct rf_channel rf_vals_bg_2525[] = {
1582         { 1,  0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1583         { 2,  0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1584         { 3,  0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1585         { 4,  0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1586         { 5,  0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1587         { 6,  0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1588         { 7,  0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1589         { 8,  0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1590         { 9,  0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1591         { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1592         { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1593         { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1594         { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1595         { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1596 };
1597
1598 /*
1599  * RF value list for RF2525e
1600  * Supports: 2.4 GHz
1601  */
1602 static const struct rf_channel rf_vals_bg_2525e[] = {
1603         { 1,  0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1604         { 2,  0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1605         { 3,  0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1606         { 4,  0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1607         { 5,  0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1608         { 6,  0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1609         { 7,  0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1610         { 8,  0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1611         { 9,  0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1612         { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1613         { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1614         { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1615         { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1616         { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1617 };
1618
1619 /*
1620  * RF value list for RF5222
1621  * Supports: 2.4 GHz & 5.2 GHz
1622  */
1623 static const struct rf_channel rf_vals_5222[] = {
1624         { 1,  0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1625         { 2,  0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1626         { 3,  0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1627         { 4,  0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1628         { 5,  0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1629         { 6,  0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1630         { 7,  0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1631         { 8,  0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1632         { 9,  0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1633         { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1634         { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1635         { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1636         { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1637         { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1638
1639         /* 802.11 UNI / HyperLan 2 */
1640         { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1641         { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1642         { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1643         { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1644         { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1645         { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1646         { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1647         { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1648
1649         /* 802.11 HyperLan 2 */
1650         { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1651         { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1652         { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1653         { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1654         { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1655         { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1656         { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1657         { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1658         { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1659         { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1660
1661         /* 802.11 UNII */
1662         { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1663         { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1664         { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1665         { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1666         { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1667 };
1668
1669 static int rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1670 {
1671         struct hw_mode_spec *spec = &rt2x00dev->spec;
1672         struct channel_info *info;
1673         char *tx_power;
1674         unsigned int i;
1675
1676         /*
1677          * Initialize all hw fields.
1678          */
1679         rt2x00dev->hw->flags =
1680             IEEE80211_HW_RX_INCLUDES_FCS |
1681             IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1682             IEEE80211_HW_SIGNAL_DBM;
1683
1684         rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1685
1686         SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
1687         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1688                                 rt2x00_eeprom_addr(rt2x00dev,
1689                                                    EEPROM_MAC_ADDR_0));
1690
1691         /*
1692          * Initialize hw_mode information.
1693          */
1694         spec->supported_bands = SUPPORT_BAND_2GHZ;
1695         spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1696
1697         if (rt2x00_rf(&rt2x00dev->chip, RF2522)) {
1698                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1699                 spec->channels = rf_vals_bg_2522;
1700         } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) {
1701                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1702                 spec->channels = rf_vals_bg_2523;
1703         } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) {
1704                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1705                 spec->channels = rf_vals_bg_2524;
1706         } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
1707                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1708                 spec->channels = rf_vals_bg_2525;
1709         } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
1710                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1711                 spec->channels = rf_vals_bg_2525e;
1712         } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1713                 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1714                 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1715                 spec->channels = rf_vals_5222;
1716         }
1717
1718         /*
1719          * Create channel information array
1720          */
1721         info = kzalloc(spec->num_channels * sizeof(*info), GFP_KERNEL);
1722         if (!info)
1723                 return -ENOMEM;
1724
1725         spec->channels_info = info;
1726
1727         tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1728         for (i = 0; i < 14; i++)
1729                 info[i].tx_power1 = TXPOWER_FROM_DEV(tx_power[i]);
1730
1731         if (spec->num_channels > 14) {
1732                 for (i = 14; i < spec->num_channels; i++)
1733                         info[i].tx_power1 = DEFAULT_TXPOWER;
1734         }
1735
1736         return 0;
1737 }
1738
1739 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1740 {
1741         int retval;
1742
1743         /*
1744          * Allocate eeprom data.
1745          */
1746         retval = rt2500usb_validate_eeprom(rt2x00dev);
1747         if (retval)
1748                 return retval;
1749
1750         retval = rt2500usb_init_eeprom(rt2x00dev);
1751         if (retval)
1752                 return retval;
1753
1754         /*
1755          * Initialize hw specifications.
1756          */
1757         retval = rt2500usb_probe_hw_mode(rt2x00dev);
1758         if (retval)
1759                 return retval;
1760
1761         /*
1762          * This device requires the atim queue
1763          */
1764         __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1765         __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1766         __set_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags);
1767         __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1768
1769         /*
1770          * Set the rssi offset.
1771          */
1772         rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1773
1774         return 0;
1775 }
1776
1777 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1778         .tx                     = rt2x00mac_tx,
1779         .start                  = rt2x00mac_start,
1780         .stop                   = rt2x00mac_stop,
1781         .add_interface          = rt2x00mac_add_interface,
1782         .remove_interface       = rt2x00mac_remove_interface,
1783         .config                 = rt2x00mac_config,
1784         .config_interface       = rt2x00mac_config_interface,
1785         .configure_filter       = rt2x00mac_configure_filter,
1786         .get_stats              = rt2x00mac_get_stats,
1787         .bss_info_changed       = rt2x00mac_bss_info_changed,
1788         .conf_tx                = rt2x00mac_conf_tx,
1789         .get_tx_stats           = rt2x00mac_get_tx_stats,
1790 };
1791
1792 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1793         .probe_hw               = rt2500usb_probe_hw,
1794         .initialize             = rt2x00usb_initialize,
1795         .uninitialize           = rt2x00usb_uninitialize,
1796         .init_rxentry           = rt2x00usb_init_rxentry,
1797         .init_txentry           = rt2x00usb_init_txentry,
1798         .set_device_state       = rt2500usb_set_device_state,
1799         .link_stats             = rt2500usb_link_stats,
1800         .reset_tuner            = rt2500usb_reset_tuner,
1801         .link_tuner             = rt2500usb_link_tuner,
1802         .write_tx_desc          = rt2500usb_write_tx_desc,
1803         .write_tx_data          = rt2x00usb_write_tx_data,
1804         .write_beacon           = rt2500usb_write_beacon,
1805         .get_tx_data_len        = rt2500usb_get_tx_data_len,
1806         .kick_tx_queue          = rt2500usb_kick_tx_queue,
1807         .fill_rxdone            = rt2500usb_fill_rxdone,
1808         .config_filter          = rt2500usb_config_filter,
1809         .config_intf            = rt2500usb_config_intf,
1810         .config_erp             = rt2500usb_config_erp,
1811         .config                 = rt2500usb_config,
1812 };
1813
1814 static const struct data_queue_desc rt2500usb_queue_rx = {
1815         .entry_num              = RX_ENTRIES,
1816         .data_size              = DATA_FRAME_SIZE,
1817         .desc_size              = RXD_DESC_SIZE,
1818         .priv_size              = sizeof(struct queue_entry_priv_usb),
1819 };
1820
1821 static const struct data_queue_desc rt2500usb_queue_tx = {
1822         .entry_num              = TX_ENTRIES,
1823         .data_size              = DATA_FRAME_SIZE,
1824         .desc_size              = TXD_DESC_SIZE,
1825         .priv_size              = sizeof(struct queue_entry_priv_usb),
1826 };
1827
1828 static const struct data_queue_desc rt2500usb_queue_bcn = {
1829         .entry_num              = BEACON_ENTRIES,
1830         .data_size              = MGMT_FRAME_SIZE,
1831         .desc_size              = TXD_DESC_SIZE,
1832         .priv_size              = sizeof(struct queue_entry_priv_usb_bcn),
1833 };
1834
1835 static const struct data_queue_desc rt2500usb_queue_atim = {
1836         .entry_num              = ATIM_ENTRIES,
1837         .data_size              = DATA_FRAME_SIZE,
1838         .desc_size              = TXD_DESC_SIZE,
1839         .priv_size              = sizeof(struct queue_entry_priv_usb),
1840 };
1841
1842 static const struct rt2x00_ops rt2500usb_ops = {
1843         .name           = KBUILD_MODNAME,
1844         .max_sta_intf   = 1,
1845         .max_ap_intf    = 1,
1846         .eeprom_size    = EEPROM_SIZE,
1847         .rf_size        = RF_SIZE,
1848         .tx_queues      = NUM_TX_QUEUES,
1849         .rx             = &rt2500usb_queue_rx,
1850         .tx             = &rt2500usb_queue_tx,
1851         .bcn            = &rt2500usb_queue_bcn,
1852         .atim           = &rt2500usb_queue_atim,
1853         .lib            = &rt2500usb_rt2x00_ops,
1854         .hw             = &rt2500usb_mac80211_ops,
1855 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1856         .debugfs        = &rt2500usb_rt2x00debug,
1857 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1858 };
1859
1860 /*
1861  * rt2500usb module information.
1862  */
1863 static struct usb_device_id rt2500usb_device_table[] = {
1864         /* ASUS */
1865         { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1866         { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1867         /* Belkin */
1868         { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1869         { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1870         { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1871         /* Cisco Systems */
1872         { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1873         { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1874         { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1875         /* Conceptronic */
1876         { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1877         /* D-LINK */
1878         { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1879         /* Gigabyte */
1880         { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1881         { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1882         /* Hercules */
1883         { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1884         /* Melco */
1885         { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
1886         { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1887         { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1888         { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1889         { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1890         /* MSI */
1891         { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1892         { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1893         { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1894         /* Ralink */
1895         { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1896         { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1897         { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1898         { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1899         /* Siemens */
1900         { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1901         /* SMC */
1902         { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1903         /* Spairon */
1904         { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1905         /* Trust */
1906         { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1907         /* Zinwell */
1908         { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1909         { 0, }
1910 };
1911
1912 MODULE_AUTHOR(DRV_PROJECT);
1913 MODULE_VERSION(DRV_VERSION);
1914 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1915 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1916 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1917 MODULE_LICENSE("GPL");
1918
1919 static struct usb_driver rt2500usb_driver = {
1920         .name           = KBUILD_MODNAME,
1921         .id_table       = rt2500usb_device_table,
1922         .probe          = rt2x00usb_probe,
1923         .disconnect     = rt2x00usb_disconnect,
1924         .suspend        = rt2x00usb_suspend,
1925         .resume         = rt2x00usb_resume,
1926 };
1927
1928 static int __init rt2500usb_init(void)
1929 {
1930         return usb_register(&rt2500usb_driver);
1931 }
1932
1933 static void __exit rt2500usb_exit(void)
1934 {
1935         usb_deregister(&rt2500usb_driver);
1936 }
1937
1938 module_init(rt2500usb_init);
1939 module_exit(rt2500usb_exit);