SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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 static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
 637 {
 638         int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
 639         u16 bbp_thresh;
 640         u16 vgc_bound;
 641         u16 sens;
 642         u16 r24;
 643         u16 r25;
 644         u16 r61;
 645         u16 r17_sens;
 646         u8 r17;
 647         u8 up_bound;
 648         u8 low_bound;
 649
 650         /*
 651          * Read current r17 value, as well as the sensitivity values
 652          * for the r17 register.
 653          */
 654         rt2500usb_bbp_read(rt2x00dev, 17, &r17);
 655         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
 656
 657         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
 658         up_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
 659         low_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCLOWER);
 660
 661         /*
 662          * If we are not associated, we should go straight to the
 663          * dynamic CCA tuning.
 664          */
 665         if (!rt2x00dev->intf_associated)
 666                 goto dynamic_cca_tune;
 667
 668         /*
 669          * Determine the BBP tuning threshold and correctly
 670          * set BBP 24, 25 and 61.
 671          */
 672         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
 673         bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
 674
 675         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
 676         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
 677         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
 678
 679         if ((rssi + bbp_thresh) > 0) {
 680                 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
 681                 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
 682                 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
 683         } else {
 684                 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
 685                 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
 686                 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
 687         }
 688
 689         rt2500usb_bbp_write(rt2x00dev, 24, r24);
 690         rt2500usb_bbp_write(rt2x00dev, 25, r25);
 691         rt2500usb_bbp_write(rt2x00dev, 61, r61);
 692
 693         /*
 694          * A too low RSSI will cause too much false CCA which will
 695          * then corrupt the R17 tuning. To remidy this the tuning should
 696          * be stopped (While making sure the R17 value will not exceed limits)
 697          */
 698         if (rssi >= -40) {
 699                 if (r17 != 0x60)
 700                         rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
 701                 return;
 702         }
 703
 704         /*
 705          * Special big-R17 for short distance
 706          */
 707         if (rssi >= -58) {
 708                 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
 709                 if (r17 != sens)
 710                         rt2500usb_bbp_write(rt2x00dev, 17, sens);
 711                 return;
 712         }
 713
 714         /*
 715          * Special mid-R17 for middle distance
 716          */
 717         if (rssi >= -74) {
 718                 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
 719                 if (r17 != sens)
 720                         rt2500usb_bbp_write(rt2x00dev, 17, sens);
 721                 return;
 722         }
 723
 724         /*
 725          * Leave short or middle distance condition, restore r17
 726          * to the dynamic tuning range.
 727          */
 728         low_bound = 0x32;
 729         if (rssi < -77)
 730                 up_bound -= (-77 - rssi);
 731
 732         if (up_bound < low_bound)
 733                 up_bound = low_bound;
 734
 735         if (r17 > up_bound) {
 736                 rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
 737                 rt2x00dev->link.vgc_level = up_bound;
 738                 return;
 739         }
 740
 741 dynamic_cca_tune:
 742
 743         /*
 744          * R17 is inside the dynamic tuning range,
 745          * start tuning the link based on the false cca counter.
 746          */
 747         if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
 748                 rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
 749                 rt2x00dev->link.vgc_level = r17;
 750         } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
 751                 rt2500usb_bbp_write(rt2x00dev, 17, --r17);
 752                 rt2x00dev->link.vgc_level = r17;
 753         }
 754 }
 755
 756 /*
 757  * Initialization functions.
 758  */
 759 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
 760 {
 761         u16 reg;
 762
 763         rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
 764                                     USB_MODE_TEST, REGISTER_TIMEOUT);
 765         rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
 766                                     0x00f0, REGISTER_TIMEOUT);
 767
 768         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 769         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
 770         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 771
 772         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
 773         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
 774
 775         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 776         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 1);
 777         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 1);
 778         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 779         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 780
 781         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 782         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 783         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 784         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 785         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 786
 787         rt2500usb_register_read(rt2x00dev, TXRX_CSR5, &reg);
 788         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0, 13);
 789         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0_VALID, 1);
 790         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1, 12);
 791         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1_VALID, 1);
 792         rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
 793
 794         rt2500usb_register_read(rt2x00dev, TXRX_CSR6, &reg);
 795         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0, 10);
 796         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0_VALID, 1);
 797         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1, 11);
 798         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1_VALID, 1);
 799         rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
 800
 801         rt2500usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
 802         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0, 7);
 803         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0_VALID, 1);
 804         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1, 6);
 805         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1_VALID, 1);
 806         rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
 807
 808         rt2500usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
 809         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0, 5);
 810         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0_VALID, 1);
 811         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1, 0);
 812         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1_VALID, 0);
 813         rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
 814
 815         rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
 816         rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
 817
 818         if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
 819                 return -EBUSY;
 820
 821         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 822         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 823         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 824         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 1);
 825         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 826
 827         if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
 828                 rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
 829                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 0);
 830         } else {
 831                 reg = 0;
 832                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 1);
 833                 rt2x00_set_field16(&reg, PHY_CSR2_LNA_MODE, 3);
 834         }
 835         rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
 836
 837         rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
 838         rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
 839         rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
 840         rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
 841
 842         rt2500usb_register_read(rt2x00dev, MAC_CSR8, &reg);
 843         rt2x00_set_field16(&reg, MAC_CSR8_MAX_FRAME_UNIT,
 844                            rt2x00dev->rx->data_size);
 845         rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
 846
 847         rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 848         rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
 849         rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0xff);
 850         rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 851
 852         rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 853         rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON, 90);
 854         rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 855
 856         rt2500usb_register_read(rt2x00dev, PHY_CSR4, &reg);
 857         rt2x00_set_field16(&reg, PHY_CSR4_LOW_RF_LE, 1);
 858         rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
 859
 860         rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
 861         rt2x00_set_field16(&reg, TXRX_CSR1_AUTO_SEQUENCE, 1);
 862         rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
 863
 864         return 0;
 865 }
 866
 867 static int rt2500usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
 868 {
 869         unsigned int i;
 870         u8 value;
 871
 872         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 873                 rt2500usb_bbp_read(rt2x00dev, 0, &value);
 874                 if ((value != 0xff) && (value != 0x00))
 875                         return 0;
 876                 udelay(REGISTER_BUSY_DELAY);
 877         }
 878
 879         ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
 880         return -EACCES;
 881 }
 882
 883 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
 884 {
 885         unsigned int i;
 886         u16 eeprom;
 887         u8 value;
 888         u8 reg_id;
 889
 890         if (unlikely(rt2500usb_wait_bbp_ready(rt2x00dev)))
 891                 return -EACCES;
 892
 893         rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
 894         rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
 895         rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
 896         rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
 897         rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
 898         rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
 899         rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
 900         rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
 901         rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
 902         rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
 903         rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
 904         rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
 905         rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
 906         rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
 907         rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
 908         rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
 909         rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
 910         rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
 911         rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
 912         rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
 913         rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
 914         rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
 915         rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
 916         rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
 917         rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
 918         rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
 919         rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
 920         rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
 921         rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
 922         rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
 923         rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
 924
 925         for (i = 0; i < EEPROM_BBP_SIZE; i++) {
 926                 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
 927
 928                 if (eeprom != 0xffff && eeprom != 0x0000) {
 929                         reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
 930                         value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
 931                         rt2500usb_bbp_write(rt2x00dev, reg_id, value);
 932                 }
 933         }
 934
 935         return 0;
 936 }
 937
 938 /*
 939  * Device state switch handlers.
 940  */
 941 static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
 942                                 enum dev_state state)
 943 {
 944         u16 reg;
 945
 946         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 947         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX,
 948                            (state == STATE_RADIO_RX_OFF) ||
 949                            (state == STATE_RADIO_RX_OFF_LINK));
 950         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 951 }
 952
 953 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
 954 {
 955         /*
 956          * Initialize all registers.
 957          */
 958         if (unlikely(rt2500usb_init_registers(rt2x00dev) ||
 959                      rt2500usb_init_bbp(rt2x00dev)))
 960                 return -EIO;
 961
 962         return 0;
 963 }
 964
 965 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
 966 {
 967         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
 968         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
 969
 970         /*
 971          * Disable synchronisation.
 972          */
 973         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
 974
 975         rt2x00usb_disable_radio(rt2x00dev);
 976 }
 977
 978 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
 979                                enum dev_state state)
 980 {
 981         u16 reg;
 982         u16 reg2;
 983         unsigned int i;
 984         char put_to_sleep;
 985         char bbp_state;
 986         char rf_state;
 987
 988         put_to_sleep = (state != STATE_AWAKE);
 989
 990         reg = 0;
 991         rt2x00_set_field16(&reg, MAC_CSR17_BBP_DESIRE_STATE, state);
 992         rt2x00_set_field16(&reg, MAC_CSR17_RF_DESIRE_STATE, state);
 993         rt2x00_set_field16(&reg, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
 994         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
 995         rt2x00_set_field16(&reg, MAC_CSR17_SET_STATE, 1);
 996         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
 997
 998         /*
 999          * Device is not guaranteed to be in the requested state yet.
1000          * We must wait until the register indicates that the
1001          * device has entered the correct state.
1002          */
1003         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1004                 rt2500usb_register_read(rt2x00dev, MAC_CSR17, &reg2);
1005                 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
1006                 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
1007                 if (bbp_state == state && rf_state == state)
1008                         return 0;
1009                 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1010                 msleep(30);
1011         }
1012
1013         return -EBUSY;
1014 }
1015
1016 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1017                                       enum dev_state state)
1018 {
1019         int retval = 0;
1020
1021         switch (state) {
1022         case STATE_RADIO_ON:
1023                 retval = rt2500usb_enable_radio(rt2x00dev);
1024                 break;
1025         case STATE_RADIO_OFF:
1026                 rt2500usb_disable_radio(rt2x00dev);
1027                 break;
1028         case STATE_RADIO_RX_ON:
1029         case STATE_RADIO_RX_ON_LINK:
1030         case STATE_RADIO_RX_OFF:
1031         case STATE_RADIO_RX_OFF_LINK:
1032                 rt2500usb_toggle_rx(rt2x00dev, state);
1033                 break;
1034         case STATE_RADIO_IRQ_ON:
1035         case STATE_RADIO_IRQ_OFF:
1036                 /* No support, but no error either */
1037                 break;
1038         case STATE_DEEP_SLEEP:
1039         case STATE_SLEEP:
1040         case STATE_STANDBY:
1041         case STATE_AWAKE:
1042                 retval = rt2500usb_set_state(rt2x00dev, state);
1043                 break;
1044         default:
1045                 retval = -ENOTSUPP;
1046                 break;
1047         }
1048
1049         if (unlikely(retval))
1050                 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
1051                       state, retval);
1052
1053         return retval;
1054 }
1055
1056 /*
1057  * TX descriptor initialization
1058  */
1059 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1060                                     struct sk_buff *skb,
1061                                     struct txentry_desc *txdesc)
1062 {
1063         struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1064         __le32 *txd = skbdesc->desc;
1065         u32 word;
1066
1067         /*
1068          * Start writing the descriptor words.
1069          */
1070         rt2x00_desc_read(txd, 1, &word);
1071         rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1072         rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1073         rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1074         rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1075         rt2x00_desc_write(txd, 1, word);
1076
1077         rt2x00_desc_read(txd, 2, &word);
1078         rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1079         rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1080         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1081         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1082         rt2x00_desc_write(txd, 2, word);
1083
1084         rt2x00_desc_read(txd, 0, &word);
1085         rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, txdesc->retry_limit);
1086         rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1087                            test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1088         rt2x00_set_field32(&word, TXD_W0_ACK,
1089                            test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1090         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1091                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1092         rt2x00_set_field32(&word, TXD_W0_OFDM,
1093                            test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
1094         rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1095                            test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
1096         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1097         rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT,
1098                            skb->len - skbdesc->desc_len);
1099         rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
1100         rt2x00_desc_write(txd, 0, word);
1101 }
1102
1103 /*
1104  * TX data initialization
1105  */
1106 static void rt2500usb_beacondone(struct urb *urb);
1107
1108 static void rt2500usb_write_beacon(struct queue_entry *entry)
1109 {
1110         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1111         struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
1112         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1113         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1114         int pipe = usb_sndbulkpipe(usb_dev, 1);
1115         int length;
1116         u16 reg;
1117
1118         /*
1119          * Add the descriptor in front of the skb.
1120          */
1121         skb_push(entry->skb, entry->queue->desc_size);
1122         memcpy(entry->skb->data, skbdesc->desc, skbdesc->desc_len);
1123         skbdesc->desc = entry->skb->data;
1124
1125         /*
1126          * Disable beaconing while we are reloading the beacon data,
1127          * otherwise we might be sending out invalid data.
1128          */
1129         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1130         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 0);
1131         rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 0);
1132         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
1133         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1134
1135         /*
1136          * USB devices cannot blindly pass the skb->len as the
1137          * length of the data to usb_fill_bulk_urb. Pass the skb
1138          * to the driver to determine what the length should be.
1139          */
1140         length = rt2x00dev->ops->lib->get_tx_data_len(rt2x00dev, entry->skb);
1141
1142         usb_fill_bulk_urb(bcn_priv->urb, usb_dev, pipe,
1143                           entry->skb->data, length, rt2500usb_beacondone,
1144                           entry);
1145
1146         /*
1147          * Second we need to create the guardian byte.
1148          * We only need a single byte, so lets recycle
1149          * the 'flags' field we are not using for beacons.
1150          */
1151         bcn_priv->guardian_data = 0;
1152         usb_fill_bulk_urb(bcn_priv->guardian_urb, usb_dev, pipe,
1153                           &bcn_priv->guardian_data, 1, rt2500usb_beacondone,
1154                           entry);
1155
1156         /*
1157          * Send out the guardian byte.
1158          */
1159         usb_submit_urb(bcn_priv->guardian_urb, GFP_ATOMIC);
1160 }
1161
1162 static int rt2500usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
1163                                      struct sk_buff *skb)
1164 {
1165         int length;
1166
1167         /*
1168          * The length _must_ be a multiple of 2,
1169          * but it must _not_ be a multiple of the USB packet size.
1170          */
1171         length = roundup(skb->len, 2);
1172         length += (2 * !(length % rt2x00dev->usb_maxpacket));
1173
1174         return length;
1175 }
1176
1177 static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1178                                     const enum data_queue_qid queue)
1179 {
1180         u16 reg;
1181
1182         if (queue != QID_BEACON) {
1183                 rt2x00usb_kick_tx_queue(rt2x00dev, queue);
1184                 return;
1185         }
1186
1187         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1188         if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
1189                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
1190                 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
1191                 rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
1192                 /*
1193                  * Beacon generation will fail initially.
1194                  * To prevent this we need to register the TXRX_CSR19
1195                  * register several times.
1196                  */
1197                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1198                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1199                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1200                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1201                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1202         }
1203 }
1204
1205 /*
1206  * RX control handlers
1207  */
1208 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1209                                   struct rxdone_entry_desc *rxdesc)
1210 {
1211         struct queue_entry_priv_usb *entry_priv = entry->priv_data;
1212         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1213         __le32 *rxd =
1214             (__le32 *)(entry->skb->data +
1215                        (entry_priv->urb->actual_length -
1216                         entry->queue->desc_size));
1217         u32 word0;
1218         u32 word1;
1219
1220         /*
1221          * Copy descriptor to the skbdesc->desc buffer, making it safe from moving of
1222          * frame data in rt2x00usb.
1223          */
1224         memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
1225         rxd = (__le32 *)skbdesc->desc;
1226
1227         /*
1228          * It is now safe to read the descriptor on all architectures.
1229          */
1230         rt2x00_desc_read(rxd, 0, &word0);
1231         rt2x00_desc_read(rxd, 1, &word1);
1232
1233         if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1234                 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1235         if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1236                 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1237
1238         /*
1239          * Obtain the status about this packet.
1240          * When frame was received with an OFDM bitrate,
1241          * the signal is the PLCP value. If it was received with
1242          * a CCK bitrate the signal is the rate in 100kbit/s.
1243          */
1244         rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1245         rxdesc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
1246             entry->queue->rt2x00dev->rssi_offset;
1247         rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1248
1249         if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1250                 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1251         if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1252                 rxdesc->dev_flags |= RXDONE_MY_BSS;
1253
1254         /*
1255          * Adjust the skb memory window to the frame boundaries.
1256          */
1257         skb_trim(entry->skb, rxdesc->size);
1258 }
1259
1260 /*
1261  * Interrupt functions.
1262  */
1263 static void rt2500usb_beacondone(struct urb *urb)
1264 {
1265         struct queue_entry *entry = (struct queue_entry *)urb->context;
1266         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1267
1268         if (!test_bit(DEVICE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1269                 return;
1270
1271         /*
1272          * Check if this was the guardian beacon,
1273          * if that was the case we need to send the real beacon now.
1274          * Otherwise we should free the sk_buffer, the device
1275          * should be doing the rest of the work now.
1276          */
1277         if (bcn_priv->guardian_urb == urb) {
1278                 usb_submit_urb(bcn_priv->urb, GFP_ATOMIC);
1279         } else if (bcn_priv->urb == urb) {
1280                 dev_kfree_skb(entry->skb);
1281                 entry->skb = NULL;
1282         }
1283 }
1284
1285 /*
1286  * Device probe functions.
1287  */
1288 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1289 {
1290         u16 word;
1291         u8 *mac;
1292         u8 bbp;
1293
1294         rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1295
1296         /*
1297          * Start validation of the data that has been read.
1298          */
1299         mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1300         if (!is_valid_ether_addr(mac)) {
1301                 DECLARE_MAC_BUF(macbuf);
1302
1303                 random_ether_addr(mac);
1304                 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
1305         }
1306
1307         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1308         if (word == 0xffff) {
1309                 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1310                 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1311                                    ANTENNA_SW_DIVERSITY);
1312                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1313                                    ANTENNA_SW_DIVERSITY);
1314                 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1315                                    LED_MODE_DEFAULT);
1316                 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1317                 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1318                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1319                 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1320                 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1321         }
1322
1323         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1324         if (word == 0xffff) {
1325                 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1326                 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1327                 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1328                 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1329                 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1330         }
1331
1332         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1333         if (word == 0xffff) {
1334                 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1335                                    DEFAULT_RSSI_OFFSET);
1336                 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1337                 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1338         }
1339
1340         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1341         if (word == 0xffff) {
1342                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1343                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1344                 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1345         }
1346
1347         /*
1348          * Switch lower vgc bound to current BBP R17 value,
1349          * lower the value a bit for better quality.
1350          */
1351         rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1352         bbp -= 6;
1353
1354         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1355         if (word == 0xffff) {
1356                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1357                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1358                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1359                 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1360         }
1361
1362         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1363         if (word == 0xffff) {
1364                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1365                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1366                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1367                 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1368         } else {
1369                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1370                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1371         }
1372
1373         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1374         if (word == 0xffff) {
1375                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1376                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1377                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1378                 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1379         }
1380
1381         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1382         if (word == 0xffff) {
1383                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1384                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1385                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1386                 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1387         }
1388
1389         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1390         if (word == 0xffff) {
1391                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1392                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1393                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1394                 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1395         }
1396
1397         return 0;
1398 }
1399
1400 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1401 {
1402         u16 reg;
1403         u16 value;
1404         u16 eeprom;
1405
1406         /*
1407          * Read EEPROM word for configuration.
1408          */
1409         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1410
1411         /*
1412          * Identify RF chipset.
1413          */
1414         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1415         rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1416         rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1417
1418         if (!rt2x00_check_rev(&rt2x00dev->chip, 0)) {
1419                 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1420                 return -ENODEV;
1421         }
1422
1423         if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
1424             !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
1425             !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
1426             !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
1427             !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
1428             !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1429                 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1430                 return -ENODEV;
1431         }
1432
1433         /*
1434          * Identify default antenna configuration.
1435          */
1436         rt2x00dev->default_ant.tx =
1437             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1438         rt2x00dev->default_ant.rx =
1439             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1440
1441         /*
1442          * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1443          * I am not 100% sure about this, but the legacy drivers do not
1444          * indicate antenna swapping in software is required when
1445          * diversity is enabled.
1446          */
1447         if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1448                 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1449         if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1450                 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1451
1452         /*
1453          * Store led mode, for correct led behaviour.
1454          */
1455 #ifdef CONFIG_RT2500USB_LEDS
1456         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1457
1458         rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
1459         if (value == LED_MODE_TXRX_ACTIVITY)
1460                 rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
1461                                    LED_TYPE_ACTIVITY);
1462 #endif /* CONFIG_RT2500USB_LEDS */
1463
1464         /*
1465          * Check if the BBP tuning should be disabled.
1466          */
1467         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1468         if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1469                 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1470
1471         /*
1472          * Read the RSSI <-> dBm offset information.
1473          */
1474         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1475         rt2x00dev->rssi_offset =
1476             rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1477
1478         return 0;
1479 }
1480
1481 /*
1482  * RF value list for RF2522
1483  * Supports: 2.4 GHz
1484  */
1485 static const struct rf_channel rf_vals_bg_2522[] = {
1486         { 1,  0x00002050, 0x000c1fda, 0x00000101, 0 },
1487         { 2,  0x00002050, 0x000c1fee, 0x00000101, 0 },
1488         { 3,  0x00002050, 0x000c2002, 0x00000101, 0 },
1489         { 4,  0x00002050, 0x000c2016, 0x00000101, 0 },
1490         { 5,  0x00002050, 0x000c202a, 0x00000101, 0 },
1491         { 6,  0x00002050, 0x000c203e, 0x00000101, 0 },
1492         { 7,  0x00002050, 0x000c2052, 0x00000101, 0 },
1493         { 8,  0x00002050, 0x000c2066, 0x00000101, 0 },
1494         { 9,  0x00002050, 0x000c207a, 0x00000101, 0 },
1495         { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1496         { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1497         { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1498         { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1499         { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1500 };
1501
1502 /*
1503  * RF value list for RF2523
1504  * Supports: 2.4 GHz
1505  */
1506 static const struct rf_channel rf_vals_bg_2523[] = {
1507         { 1,  0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1508         { 2,  0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1509         { 3,  0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1510         { 4,  0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1511         { 5,  0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1512         { 6,  0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1513         { 7,  0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1514         { 8,  0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1515         { 9,  0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1516         { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1517         { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1518         { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1519         { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1520         { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1521 };
1522
1523 /*
1524  * RF value list for RF2524
1525  * Supports: 2.4 GHz
1526  */
1527 static const struct rf_channel rf_vals_bg_2524[] = {
1528         { 1,  0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1529         { 2,  0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1530         { 3,  0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1531         { 4,  0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1532         { 5,  0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1533         { 6,  0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1534         { 7,  0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1535         { 8,  0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1536         { 9,  0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1537         { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1538         { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1539         { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1540         { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1541         { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1542 };
1543
1544 /*
1545  * RF value list for RF2525
1546  * Supports: 2.4 GHz
1547  */
1548 static const struct rf_channel rf_vals_bg_2525[] = {
1549         { 1,  0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1550         { 2,  0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1551         { 3,  0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1552         { 4,  0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1553         { 5,  0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1554         { 6,  0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1555         { 7,  0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1556         { 8,  0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1557         { 9,  0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1558         { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1559         { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1560         { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1561         { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1562         { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1563 };
1564
1565 /*
1566  * RF value list for RF2525e
1567  * Supports: 2.4 GHz
1568  */
1569 static const struct rf_channel rf_vals_bg_2525e[] = {
1570         { 1,  0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1571         { 2,  0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1572         { 3,  0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1573         { 4,  0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1574         { 5,  0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1575         { 6,  0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1576         { 7,  0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1577         { 8,  0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1578         { 9,  0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1579         { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1580         { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1581         { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1582         { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1583         { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1584 };
1585
1586 /*
1587  * RF value list for RF5222
1588  * Supports: 2.4 GHz & 5.2 GHz
1589  */
1590 static const struct rf_channel rf_vals_5222[] = {
1591         { 1,  0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1592         { 2,  0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1593         { 3,  0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1594         { 4,  0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1595         { 5,  0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1596         { 6,  0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1597         { 7,  0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1598         { 8,  0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1599         { 9,  0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1600         { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1601         { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1602         { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1603         { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1604         { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1605
1606         /* 802.11 UNI / HyperLan 2 */
1607         { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1608         { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1609         { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1610         { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1611         { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1612         { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1613         { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1614         { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1615
1616         /* 802.11 HyperLan 2 */
1617         { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1618         { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1619         { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1620         { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1621         { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1622         { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1623         { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1624         { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1625         { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1626         { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1627
1628         /* 802.11 UNII */
1629         { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1630         { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1631         { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1632         { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1633         { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1634 };
1635
1636 static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1637 {
1638         struct hw_mode_spec *spec = &rt2x00dev->spec;
1639         u8 *txpower;
1640         unsigned int i;
1641
1642         /*
1643          * Initialize all hw fields.
1644          */
1645         rt2x00dev->hw->flags =
1646             IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
1647             IEEE80211_HW_RX_INCLUDES_FCS |
1648             IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1649             IEEE80211_HW_SIGNAL_DBM;
1650
1651         rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1652
1653         SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
1654         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1655                                 rt2x00_eeprom_addr(rt2x00dev,
1656                                                    EEPROM_MAC_ADDR_0));
1657
1658         /*
1659          * Convert tx_power array in eeprom.
1660          */
1661         txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1662         for (i = 0; i < 14; i++)
1663                 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1664
1665         /*
1666          * Initialize hw_mode information.
1667          */
1668         spec->supported_bands = SUPPORT_BAND_2GHZ;
1669         spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1670         spec->tx_power_a = NULL;
1671         spec->tx_power_bg = txpower;
1672         spec->tx_power_default = DEFAULT_TXPOWER;
1673
1674         if (rt2x00_rf(&rt2x00dev->chip, RF2522)) {
1675                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1676                 spec->channels = rf_vals_bg_2522;
1677         } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) {
1678                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1679                 spec->channels = rf_vals_bg_2523;
1680         } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) {
1681                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1682                 spec->channels = rf_vals_bg_2524;
1683         } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
1684                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1685                 spec->channels = rf_vals_bg_2525;
1686         } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
1687                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1688                 spec->channels = rf_vals_bg_2525e;
1689         } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1690                 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1691                 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1692                 spec->channels = rf_vals_5222;
1693         }
1694 }
1695
1696 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1697 {
1698         int retval;
1699
1700         /*
1701          * Allocate eeprom data.
1702          */
1703         retval = rt2500usb_validate_eeprom(rt2x00dev);
1704         if (retval)
1705                 return retval;
1706
1707         retval = rt2500usb_init_eeprom(rt2x00dev);
1708         if (retval)
1709                 return retval;
1710
1711         /*
1712          * Initialize hw specifications.
1713          */
1714         rt2500usb_probe_hw_mode(rt2x00dev);
1715
1716         /*
1717          * This device requires the atim queue
1718          */
1719         __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1720         __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1721         __set_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags);
1722
1723         /*
1724          * Set the rssi offset.
1725          */
1726         rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1727
1728         return 0;
1729 }
1730
1731 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1732         .tx                     = rt2x00mac_tx,
1733         .start                  = rt2x00mac_start,
1734         .stop                   = rt2x00mac_stop,
1735         .add_interface          = rt2x00mac_add_interface,
1736         .remove_interface       = rt2x00mac_remove_interface,
1737         .config                 = rt2x00mac_config,
1738         .config_interface       = rt2x00mac_config_interface,
1739         .configure_filter       = rt2x00mac_configure_filter,
1740         .get_stats              = rt2x00mac_get_stats,
1741         .bss_info_changed       = rt2x00mac_bss_info_changed,
1742         .conf_tx                = rt2x00mac_conf_tx,
1743         .get_tx_stats           = rt2x00mac_get_tx_stats,
1744 };
1745
1746 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1747         .probe_hw               = rt2500usb_probe_hw,
1748         .initialize             = rt2x00usb_initialize,
1749         .uninitialize           = rt2x00usb_uninitialize,
1750         .init_rxentry           = rt2x00usb_init_rxentry,
1751         .init_txentry           = rt2x00usb_init_txentry,
1752         .set_device_state       = rt2500usb_set_device_state,
1753         .link_stats             = rt2500usb_link_stats,
1754         .reset_tuner            = rt2500usb_reset_tuner,
1755         .link_tuner             = rt2500usb_link_tuner,
1756         .write_tx_desc          = rt2500usb_write_tx_desc,
1757         .write_tx_data          = rt2x00usb_write_tx_data,
1758         .write_beacon           = rt2500usb_write_beacon,
1759         .get_tx_data_len        = rt2500usb_get_tx_data_len,
1760         .kick_tx_queue          = rt2500usb_kick_tx_queue,
1761         .fill_rxdone            = rt2500usb_fill_rxdone,
1762         .config_filter          = rt2500usb_config_filter,
1763         .config_intf            = rt2500usb_config_intf,
1764         .config_erp             = rt2500usb_config_erp,
1765         .config                 = rt2500usb_config,
1766 };
1767
1768 static const struct data_queue_desc rt2500usb_queue_rx = {
1769         .entry_num              = RX_ENTRIES,
1770         .data_size              = DATA_FRAME_SIZE,
1771         .desc_size              = RXD_DESC_SIZE,
1772         .priv_size              = sizeof(struct queue_entry_priv_usb),
1773 };
1774
1775 static const struct data_queue_desc rt2500usb_queue_tx = {
1776         .entry_num              = TX_ENTRIES,
1777         .data_size              = DATA_FRAME_SIZE,
1778         .desc_size              = TXD_DESC_SIZE,
1779         .priv_size              = sizeof(struct queue_entry_priv_usb),
1780 };
1781
1782 static const struct data_queue_desc rt2500usb_queue_bcn = {
1783         .entry_num              = BEACON_ENTRIES,
1784         .data_size              = MGMT_FRAME_SIZE,
1785         .desc_size              = TXD_DESC_SIZE,
1786         .priv_size              = sizeof(struct queue_entry_priv_usb_bcn),
1787 };
1788
1789 static const struct data_queue_desc rt2500usb_queue_atim = {
1790         .entry_num              = ATIM_ENTRIES,
1791         .data_size              = DATA_FRAME_SIZE,
1792         .desc_size              = TXD_DESC_SIZE,
1793         .priv_size              = sizeof(struct queue_entry_priv_usb),
1794 };
1795
1796 static const struct rt2x00_ops rt2500usb_ops = {
1797         .name           = KBUILD_MODNAME,
1798         .max_sta_intf   = 1,
1799         .max_ap_intf    = 1,
1800         .eeprom_size    = EEPROM_SIZE,
1801         .rf_size        = RF_SIZE,
1802         .tx_queues      = NUM_TX_QUEUES,
1803         .rx             = &rt2500usb_queue_rx,
1804         .tx             = &rt2500usb_queue_tx,
1805         .bcn            = &rt2500usb_queue_bcn,
1806         .atim           = &rt2500usb_queue_atim,
1807         .lib            = &rt2500usb_rt2x00_ops,
1808         .hw             = &rt2500usb_mac80211_ops,
1809 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1810         .debugfs        = &rt2500usb_rt2x00debug,
1811 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1812 };
1813
1814 /*
1815  * rt2500usb module information.
1816  */
1817 static struct usb_device_id rt2500usb_device_table[] = {
1818         /* ASUS */
1819         { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1820         { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1821         /* Belkin */
1822         { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1823         { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1824         { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1825         /* Cisco Systems */
1826         { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1827         { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1828         { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1829         /* Conceptronic */
1830         { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1831         /* D-LINK */
1832         { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1833         /* Gigabyte */
1834         { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1835         { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1836         /* Hercules */
1837         { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1838         /* Melco */
1839         { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
1840         { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1841         { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1842         { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1843         { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1844         /* MSI */
1845         { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1846         { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1847         { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1848         /* Ralink */
1849         { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1850         { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1851         { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1852         { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1853         /* Siemens */
1854         { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1855         /* SMC */
1856         { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1857         /* Spairon */
1858         { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1859         /* Trust */
1860         { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1861         /* Zinwell */
1862         { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1863         { 0, }
1864 };
1865
1866 MODULE_AUTHOR(DRV_PROJECT);
1867 MODULE_VERSION(DRV_VERSION);
1868 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1869 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1870 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1871 MODULE_LICENSE("GPL");
1872
1873 static struct usb_driver rt2500usb_driver = {
1874         .name           = KBUILD_MODNAME,
1875         .id_table       = rt2500usb_device_table,
1876         .probe          = rt2x00usb_probe,
1877         .disconnect     = rt2x00usb_disconnect,
1878         .suspend        = rt2x00usb_suspend,
1879         .resume         = rt2x00usb_resume,
1880 };
1881
1882 static int __init rt2500usb_init(void)
1883 {
1884         return usb_register(&rt2500usb_driver);
1885 }
1886
1887 static void __exit rt2500usb_exit(void)
1888 {
1889         usb_deregister(&rt2500usb_driver);
1890 }
1891
1892 module_init(rt2500usb_init);
1893 module_exit(rt2500usb_exit);