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         int timeout = REGISTER_TIMEOUT * (length / sizeof(u16));
  80         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
  81                                       USB_VENDOR_REQUEST_IN, offset,
  82                                       value, length, timeout);
  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         int timeout = REGISTER_TIMEOUT * (length / sizeof(u16));
 110         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
 111                                       USB_VENDOR_REQUEST_OUT, offset,
 112                                       value, length, timeout);
 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                 ERROR(rt2x00dev, "PHY_CSR8 register busy. Write failed.\n");
 143                 mutex_unlock(&rt2x00dev->usb_cache_mutex);
 144                 return;
 145         }
 146
 147         /*
 148          * Write the data into the BBP.
 149          */
 150         reg = 0;
 151         rt2x00_set_field16(&reg, PHY_CSR7_DATA, value);
 152         rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
 153         rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 0);
 154
 155         rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
 156
 157         mutex_unlock(&rt2x00dev->usb_cache_mutex);
 158 }
 159
 160 static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
 161                                const unsigned int word, u8 *value)
 162 {
 163         u16 reg;
 164
 165         mutex_lock(&rt2x00dev->usb_cache_mutex);
 166
 167         /*
 168          * Wait until the BBP becomes ready.
 169          */
 170         reg = rt2500usb_bbp_check(rt2x00dev);
 171         if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
 172                 ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
 173                 return;
 174         }
 175
 176         /*
 177          * Write the request into the BBP.
 178          */
 179         reg = 0;
 180         rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
 181         rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 1);
 182
 183         rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
 184
 185         /*
 186          * Wait until the BBP becomes ready.
 187          */
 188         reg = rt2500usb_bbp_check(rt2x00dev);
 189         if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) {
 190                 ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n");
 191                 *value = 0xff;
 192                 mutex_unlock(&rt2x00dev->usb_cache_mutex);
 193                 return;
 194         }
 195
 196         rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, &reg);
 197         *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
 198
 199         mutex_unlock(&rt2x00dev->usb_cache_mutex);
 200 }
 201
 202 static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
 203                                const unsigned int word, const u32 value)
 204 {
 205         u16 reg;
 206         unsigned int i;
 207
 208         if (!word)
 209                 return;
 210
 211         mutex_lock(&rt2x00dev->usb_cache_mutex);
 212
 213         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 214                 rt2500usb_register_read_lock(rt2x00dev, PHY_CSR10, &reg);
 215                 if (!rt2x00_get_field16(reg, PHY_CSR10_RF_BUSY))
 216                         goto rf_write;
 217                 udelay(REGISTER_BUSY_DELAY);
 218         }
 219
 220         mutex_unlock(&rt2x00dev->usb_cache_mutex);
 221         ERROR(rt2x00dev, "PHY_CSR10 register busy. Write failed.\n");
 222         return;
 223
 224 rf_write:
 225         reg = 0;
 226         rt2x00_set_field16(&reg, PHY_CSR9_RF_VALUE, value);
 227         rt2500usb_register_write_lock(rt2x00dev, PHY_CSR9, reg);
 228
 229         reg = 0;
 230         rt2x00_set_field16(&reg, PHY_CSR10_RF_VALUE, value >> 16);
 231         rt2x00_set_field16(&reg, PHY_CSR10_RF_NUMBER_OF_BITS, 20);
 232         rt2x00_set_field16(&reg, PHY_CSR10_RF_IF_SELECT, 0);
 233         rt2x00_set_field16(&reg, PHY_CSR10_RF_BUSY, 1);
 234
 235         rt2500usb_register_write_lock(rt2x00dev, PHY_CSR10, reg);
 236         rt2x00_rf_write(rt2x00dev, word, value);
 237
 238         mutex_unlock(&rt2x00dev->usb_cache_mutex);
 239 }
 240
 241 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 242 #define CSR_OFFSET(__word)      ( CSR_REG_BASE + ((__word) * sizeof(u16)) )
 243
 244 static void rt2500usb_read_csr(struct rt2x00_dev *rt2x00dev,
 245                                const unsigned int word, u32 *data)
 246 {
 247         rt2500usb_register_read(rt2x00dev, CSR_OFFSET(word), (u16 *) data);
 248 }
 249
 250 static void rt2500usb_write_csr(struct rt2x00_dev *rt2x00dev,
 251                                 const unsigned int word, u32 data)
 252 {
 253         rt2500usb_register_write(rt2x00dev, CSR_OFFSET(word), data);
 254 }
 255
 256 static const struct rt2x00debug rt2500usb_rt2x00debug = {
 257         .owner  = THIS_MODULE,
 258         .csr    = {
 259                 .read           = rt2500usb_read_csr,
 260                 .write          = rt2500usb_write_csr,
 261                 .word_size      = sizeof(u16),
 262                 .word_count     = CSR_REG_SIZE / sizeof(u16),
 263         },
 264         .eeprom = {
 265                 .read           = rt2x00_eeprom_read,
 266                 .write          = rt2x00_eeprom_write,
 267                 .word_size      = sizeof(u16),
 268                 .word_count     = EEPROM_SIZE / sizeof(u16),
 269         },
 270         .bbp    = {
 271                 .read           = rt2500usb_bbp_read,
 272                 .write          = rt2500usb_bbp_write,
 273                 .word_size      = sizeof(u8),
 274                 .word_count     = BBP_SIZE / sizeof(u8),
 275         },
 276         .rf     = {
 277                 .read           = rt2x00_rf_read,
 278                 .write          = rt2500usb_rf_write,
 279                 .word_size      = sizeof(u32),
 280                 .word_count     = RF_SIZE / sizeof(u32),
 281         },
 282 };
 283 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 284
 285 #ifdef CONFIG_RT2500USB_LEDS
 286 static void rt2500usb_led_brightness(struct led_classdev *led_cdev,
 287                                      enum led_brightness brightness)
 288 {
 289         struct rt2x00_led *led =
 290             container_of(led_cdev, struct rt2x00_led, led_dev);
 291         unsigned int enabled = brightness != LED_OFF;
 292         unsigned int activity =
 293             led->rt2x00dev->led_flags & LED_SUPPORT_ACTIVITY;
 294         u16 reg;
 295
 296         rt2500usb_register_read(led->rt2x00dev, MAC_CSR20, &reg);
 297
 298         if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC) {
 299                 rt2x00_set_field16(&reg, MAC_CSR20_LINK, enabled);
 300                 rt2x00_set_field16(&reg, MAC_CSR20_ACTIVITY,
 301                                    enabled && activity);
 302         }
 303
 304         rt2500usb_register_write(led->rt2x00dev, MAC_CSR20, reg);
 305 }
 306 #else
 307 #define rt2500usb_led_brightness        NULL
 308 #endif /* CONFIG_RT2500USB_LEDS */
 309
 310 /*
 311  * Configuration handlers.
 312  */
 313 static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
 314                                   struct rt2x00_intf *intf,
 315                                   struct rt2x00intf_conf *conf,
 316                                   const unsigned int flags)
 317 {
 318         unsigned int bcn_preload;
 319         u16 reg;
 320
 321         if (flags & CONFIG_UPDATE_TYPE) {
 322                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
 323
 324                 /*
 325                  * Enable beacon config
 326                  */
 327                 bcn_preload = PREAMBLE + get_duration(IEEE80211_HEADER, 20);
 328                 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, &reg);
 329                 rt2x00_set_field16(&reg, TXRX_CSR20_OFFSET, bcn_preload >> 6);
 330                 rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW,
 331                                    2 * (conf->type != IEEE80211_IF_TYPE_STA));
 332                 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
 333
 334                 /*
 335                  * Enable synchronisation.
 336                  */
 337                 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
 338                 rt2x00_set_field16(&reg, TXRX_CSR18_OFFSET, 0);
 339                 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
 340
 341                 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 342                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
 343                 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN,
 344                                    (conf->sync == TSF_SYNC_BEACON));
 345                 rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
 346                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, conf->sync);
 347                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 348         }
 349
 350         if (flags & CONFIG_UPDATE_MAC)
 351                 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac,
 352                                               (3 * sizeof(__le16)));
 353
 354         if (flags & CONFIG_UPDATE_BSSID)
 355                 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid,
 356                                               (3 * sizeof(__le16)));
 357 }
 358
 359 static int rt2500usb_config_preamble(struct rt2x00_dev *rt2x00dev,
 360                                      const int short_preamble,
 361                                      const int ack_timeout,
 362                                      const int ack_consume_time)
 363 {
 364         u16 reg;
 365
 366         /*
 367          * When in atomic context, we should let rt2x00lib
 368          * try this configuration again later.
 369          */
 370         if (in_atomic())
 371                 return -EAGAIN;
 372
 373         rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
 374         rt2x00_set_field16(&reg, TXRX_CSR1_ACK_TIMEOUT, ack_timeout);
 375         rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
 376
 377         rt2500usb_register_read(rt2x00dev, TXRX_CSR10, &reg);
 378         rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE,
 379                            !!short_preamble);
 380         rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
 381
 382         return 0;
 383 }
 384
 385 static void rt2500usb_config_phymode(struct rt2x00_dev *rt2x00dev,
 386                                      const int basic_rate_mask)
 387 {
 388         rt2500usb_register_write(rt2x00dev, TXRX_CSR11, basic_rate_mask);
 389 }
 390
 391 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
 392                                      struct rf_channel *rf, const int txpower)
 393 {
 394         /*
 395          * Set TXpower.
 396          */
 397         rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 398
 399         /*
 400          * For RT2525E we should first set the channel to half band higher.
 401          */
 402         if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
 403                 static const u32 vals[] = {
 404                         0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
 405                         0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
 406                         0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
 407                         0x00000902, 0x00000906
 408                 };
 409
 410                 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
 411                 if (rf->rf4)
 412                         rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
 413         }
 414
 415         rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
 416         rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
 417         rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
 418         if (rf->rf4)
 419                 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
 420 }
 421
 422 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
 423                                      const int txpower)
 424 {
 425         u32 rf3;
 426
 427         rt2x00_rf_read(rt2x00dev, 3, &rf3);
 428         rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 429         rt2500usb_rf_write(rt2x00dev, 3, rf3);
 430 }
 431
 432 static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
 433                                      struct antenna_setup *ant)
 434 {
 435         u8 r2;
 436         u8 r14;
 437         u16 csr5;
 438         u16 csr6;
 439
 440         rt2500usb_bbp_read(rt2x00dev, 2, &r2);
 441         rt2500usb_bbp_read(rt2x00dev, 14, &r14);
 442         rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
 443         rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
 444
 445         /*
 446          * Configure the TX antenna.
 447          */
 448         switch (ant->tx) {
 449         case ANTENNA_HW_DIVERSITY:
 450                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
 451                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
 452                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
 453                 break;
 454         case ANTENNA_A:
 455                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
 456                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
 457                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
 458                 break;
 459         case ANTENNA_SW_DIVERSITY:
 460                 /*
 461                  * NOTE: We should never come here because rt2x00lib is
 462                  * supposed to catch this and send us the correct antenna
 463                  * explicitely. However we are nog going to bug about this.
 464                  * Instead, just default to antenna B.
 465                  */
 466         case ANTENNA_B:
 467                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
 468                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
 469                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
 470                 break;
 471         }
 472
 473         /*
 474          * Configure the RX antenna.
 475          */
 476         switch (ant->rx) {
 477         case ANTENNA_HW_DIVERSITY:
 478                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
 479                 break;
 480         case ANTENNA_A:
 481                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
 482                 break;
 483         case ANTENNA_SW_DIVERSITY:
 484                 /*
 485                  * NOTE: We should never come here because rt2x00lib is
 486                  * supposed to catch this and send us the correct antenna
 487                  * explicitely. However we are nog going to bug about this.
 488                  * Instead, just default to antenna B.
 489                  */
 490         case ANTENNA_B:
 491                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
 492                 break;
 493         }
 494
 495         /*
 496          * RT2525E and RT5222 need to flip TX I/Q
 497          */
 498         if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
 499             rt2x00_rf(&rt2x00dev->chip, RF5222)) {
 500                 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
 501                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
 502                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
 503
 504                 /*
 505                  * RT2525E does not need RX I/Q Flip.
 506                  */
 507                 if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
 508                         rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
 509         } else {
 510                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
 511                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
 512         }
 513
 514         rt2500usb_bbp_write(rt2x00dev, 2, r2);
 515         rt2500usb_bbp_write(rt2x00dev, 14, r14);
 516         rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
 517         rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
 518 }
 519
 520 static void rt2500usb_config_duration(struct rt2x00_dev *rt2x00dev,
 521                                       struct rt2x00lib_conf *libconf)
 522 {
 523         u16 reg;
 524
 525         rt2500usb_register_write(rt2x00dev, MAC_CSR10, libconf->slot_time);
 526         rt2500usb_register_write(rt2x00dev, MAC_CSR11, libconf->sifs);
 527         rt2500usb_register_write(rt2x00dev, MAC_CSR12, libconf->eifs);
 528
 529         rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
 530         rt2x00_set_field16(&reg, TXRX_CSR18_INTERVAL,
 531                            libconf->conf->beacon_int * 4);
 532         rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
 533 }
 534
 535 static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
 536                              struct rt2x00lib_conf *libconf,
 537                              const unsigned int flags)
 538 {
 539         if (flags & CONFIG_UPDATE_PHYMODE)
 540                 rt2500usb_config_phymode(rt2x00dev, libconf->basic_rates);
 541         if (flags & CONFIG_UPDATE_CHANNEL)
 542                 rt2500usb_config_channel(rt2x00dev, &libconf->rf,
 543                                          libconf->conf->power_level);
 544         if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
 545                 rt2500usb_config_txpower(rt2x00dev,
 546                                          libconf->conf->power_level);
 547         if (flags & CONFIG_UPDATE_ANTENNA)
 548                 rt2500usb_config_antenna(rt2x00dev, &libconf->ant);
 549         if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
 550                 rt2500usb_config_duration(rt2x00dev, libconf);
 551 }
 552
 553 /*
 554  * Link tuning
 555  */
 556 static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
 557                                  struct link_qual *qual)
 558 {
 559         u16 reg;
 560
 561         /*
 562          * Update FCS error count from register.
 563          */
 564         rt2500usb_register_read(rt2x00dev, STA_CSR0, &reg);
 565         qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
 566
 567         /*
 568          * Update False CCA count from register.
 569          */
 570         rt2500usb_register_read(rt2x00dev, STA_CSR3, &reg);
 571         qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
 572 }
 573
 574 static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
 575 {
 576         u16 eeprom;
 577         u16 value;
 578
 579         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
 580         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
 581         rt2500usb_bbp_write(rt2x00dev, 24, value);
 582
 583         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
 584         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
 585         rt2500usb_bbp_write(rt2x00dev, 25, value);
 586
 587         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
 588         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
 589         rt2500usb_bbp_write(rt2x00dev, 61, value);
 590
 591         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
 592         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
 593         rt2500usb_bbp_write(rt2x00dev, 17, value);
 594
 595         rt2x00dev->link.vgc_level = value;
 596 }
 597
 598 static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
 599 {
 600         int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
 601         u16 bbp_thresh;
 602         u16 vgc_bound;
 603         u16 sens;
 604         u16 r24;
 605         u16 r25;
 606         u16 r61;
 607         u16 r17_sens;
 608         u8 r17;
 609         u8 up_bound;
 610         u8 low_bound;
 611
 612         /*
 613          * Read current r17 value, as well as the sensitivity values
 614          * for the r17 register.
 615          */
 616         rt2500usb_bbp_read(rt2x00dev, 17, &r17);
 617         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
 618
 619         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
 620         up_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
 621         low_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCLOWER);
 622
 623         /*
 624          * If we are not associated, we should go straight to the
 625          * dynamic CCA tuning.
 626          */
 627         if (!rt2x00dev->intf_associated)
 628                 goto dynamic_cca_tune;
 629
 630         /*
 631          * Determine the BBP tuning threshold and correctly
 632          * set BBP 24, 25 and 61.
 633          */
 634         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
 635         bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
 636
 637         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
 638         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
 639         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
 640
 641         if ((rssi + bbp_thresh) > 0) {
 642                 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
 643                 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
 644                 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
 645         } else {
 646                 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
 647                 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
 648                 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
 649         }
 650
 651         rt2500usb_bbp_write(rt2x00dev, 24, r24);
 652         rt2500usb_bbp_write(rt2x00dev, 25, r25);
 653         rt2500usb_bbp_write(rt2x00dev, 61, r61);
 654
 655         /*
 656          * A too low RSSI will cause too much false CCA which will
 657          * then corrupt the R17 tuning. To remidy this the tuning should
 658          * be stopped (While making sure the R17 value will not exceed limits)
 659          */
 660         if (rssi >= -40) {
 661                 if (r17 != 0x60)
 662                         rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
 663                 return;
 664         }
 665
 666         /*
 667          * Special big-R17 for short distance
 668          */
 669         if (rssi >= -58) {
 670                 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
 671                 if (r17 != sens)
 672                         rt2500usb_bbp_write(rt2x00dev, 17, sens);
 673                 return;
 674         }
 675
 676         /*
 677          * Special mid-R17 for middle distance
 678          */
 679         if (rssi >= -74) {
 680                 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
 681                 if (r17 != sens)
 682                         rt2500usb_bbp_write(rt2x00dev, 17, sens);
 683                 return;
 684         }
 685
 686         /*
 687          * Leave short or middle distance condition, restore r17
 688          * to the dynamic tuning range.
 689          */
 690         low_bound = 0x32;
 691         if (rssi < -77)
 692                 up_bound -= (-77 - rssi);
 693
 694         if (up_bound < low_bound)
 695                 up_bound = low_bound;
 696
 697         if (r17 > up_bound) {
 698                 rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
 699                 rt2x00dev->link.vgc_level = up_bound;
 700                 return;
 701         }
 702
 703 dynamic_cca_tune:
 704
 705         /*
 706          * R17 is inside the dynamic tuning range,
 707          * start tuning the link based on the false cca counter.
 708          */
 709         if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
 710                 rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
 711                 rt2x00dev->link.vgc_level = r17;
 712         } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
 713                 rt2500usb_bbp_write(rt2x00dev, 17, --r17);
 714                 rt2x00dev->link.vgc_level = r17;
 715         }
 716 }
 717
 718 /*
 719  * Initialization functions.
 720  */
 721 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
 722 {
 723         u16 reg;
 724
 725         rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
 726                                     USB_MODE_TEST, REGISTER_TIMEOUT);
 727         rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
 728                                     0x00f0, REGISTER_TIMEOUT);
 729
 730         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 731         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
 732         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 733
 734         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
 735         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
 736
 737         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 738         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 1);
 739         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 1);
 740         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 741         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 742
 743         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 744         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 745         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 746         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 747         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 748
 749         rt2500usb_register_read(rt2x00dev, MAC_CSR21, &reg);
 750         rt2x00_set_field16(&reg, MAC_CSR21_ON_PERIOD, 70);
 751         rt2x00_set_field16(&reg, MAC_CSR21_OFF_PERIOD, 30);
 752         rt2500usb_register_write(rt2x00dev, MAC_CSR21, reg);
 753
 754         rt2500usb_register_read(rt2x00dev, TXRX_CSR5, &reg);
 755         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0, 13);
 756         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0_VALID, 1);
 757         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1, 12);
 758         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1_VALID, 1);
 759         rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
 760
 761         rt2500usb_register_read(rt2x00dev, TXRX_CSR6, &reg);
 762         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0, 10);
 763         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0_VALID, 1);
 764         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1, 11);
 765         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1_VALID, 1);
 766         rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
 767
 768         rt2500usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
 769         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0, 7);
 770         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0_VALID, 1);
 771         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1, 6);
 772         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1_VALID, 1);
 773         rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
 774
 775         rt2500usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
 776         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0, 5);
 777         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0_VALID, 1);
 778         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1, 0);
 779         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1_VALID, 0);
 780         rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
 781
 782         rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
 783         rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
 784
 785         if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
 786                 return -EBUSY;
 787
 788         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 789         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 790         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 791         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 1);
 792         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 793
 794         if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
 795                 rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
 796                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 0);
 797         } else {
 798                 reg = 0;
 799                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 1);
 800                 rt2x00_set_field16(&reg, PHY_CSR2_LNA_MODE, 3);
 801         }
 802         rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
 803
 804         rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
 805         rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
 806         rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
 807         rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
 808
 809         rt2500usb_register_read(rt2x00dev, MAC_CSR8, &reg);
 810         rt2x00_set_field16(&reg, MAC_CSR8_MAX_FRAME_UNIT,
 811                            rt2x00dev->rx->data_size);
 812         rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
 813
 814         rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 815         rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
 816         rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0xff);
 817         rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 818
 819         rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 820         rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON, 90);
 821         rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 822
 823         rt2500usb_register_read(rt2x00dev, PHY_CSR4, &reg);
 824         rt2x00_set_field16(&reg, PHY_CSR4_LOW_RF_LE, 1);
 825         rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
 826
 827         rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
 828         rt2x00_set_field16(&reg, TXRX_CSR1_AUTO_SEQUENCE, 1);
 829         rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
 830
 831         return 0;
 832 }
 833
 834 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
 835 {
 836         unsigned int i;
 837         u16 eeprom;
 838         u8 value;
 839         u8 reg_id;
 840
 841         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 842                 rt2500usb_bbp_read(rt2x00dev, 0, &value);
 843                 if ((value != 0xff) && (value != 0x00))
 844                         goto continue_csr_init;
 845                 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
 846                 udelay(REGISTER_BUSY_DELAY);
 847         }
 848
 849         ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
 850         return -EACCES;
 851
 852 continue_csr_init:
 853         rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
 854         rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
 855         rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
 856         rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
 857         rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
 858         rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
 859         rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
 860         rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
 861         rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
 862         rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
 863         rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
 864         rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
 865         rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
 866         rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
 867         rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
 868         rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
 869         rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
 870         rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
 871         rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
 872         rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
 873         rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
 874         rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
 875         rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
 876         rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
 877         rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
 878         rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
 879         rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
 880         rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
 881         rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
 882         rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
 883         rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
 884
 885         DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
 886         for (i = 0; i < EEPROM_BBP_SIZE; i++) {
 887                 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
 888
 889                 if (eeprom != 0xffff && eeprom != 0x0000) {
 890                         reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
 891                         value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
 892                         DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
 893                               reg_id, value);
 894                         rt2500usb_bbp_write(rt2x00dev, reg_id, value);
 895                 }
 896         }
 897         DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
 898
 899         return 0;
 900 }
 901
 902 /*
 903  * Device state switch handlers.
 904  */
 905 static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
 906                                 enum dev_state state)
 907 {
 908         u16 reg;
 909
 910         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 911         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX,
 912                            state == STATE_RADIO_RX_OFF);
 913         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 914 }
 915
 916 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
 917 {
 918         /*
 919          * Initialize all registers.
 920          */
 921         if (rt2500usb_init_registers(rt2x00dev) ||
 922             rt2500usb_init_bbp(rt2x00dev)) {
 923                 ERROR(rt2x00dev, "Register initialization failed.\n");
 924                 return -EIO;
 925         }
 926
 927         return 0;
 928 }
 929
 930 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
 931 {
 932         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
 933         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
 934
 935         /*
 936          * Disable synchronisation.
 937          */
 938         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
 939
 940         rt2x00usb_disable_radio(rt2x00dev);
 941 }
 942
 943 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
 944                                enum dev_state state)
 945 {
 946         u16 reg;
 947         u16 reg2;
 948         unsigned int i;
 949         char put_to_sleep;
 950         char bbp_state;
 951         char rf_state;
 952
 953         put_to_sleep = (state != STATE_AWAKE);
 954
 955         reg = 0;
 956         rt2x00_set_field16(&reg, MAC_CSR17_BBP_DESIRE_STATE, state);
 957         rt2x00_set_field16(&reg, MAC_CSR17_RF_DESIRE_STATE, state);
 958         rt2x00_set_field16(&reg, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
 959         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
 960         rt2x00_set_field16(&reg, MAC_CSR17_SET_STATE, 1);
 961         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
 962
 963         /*
 964          * Device is not guaranteed to be in the requested state yet.
 965          * We must wait until the register indicates that the
 966          * device has entered the correct state.
 967          */
 968         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 969                 rt2500usb_register_read(rt2x00dev, MAC_CSR17, &reg2);
 970                 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
 971                 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
 972                 if (bbp_state == state && rf_state == state)
 973                         return 0;
 974                 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
 975                 msleep(30);
 976         }
 977
 978         NOTICE(rt2x00dev, "Device failed to enter state %d, "
 979                "current device state: bbp %d and rf %d.\n",
 980                state, bbp_state, rf_state);
 981
 982         return -EBUSY;
 983 }
 984
 985 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
 986                                       enum dev_state state)
 987 {
 988         int retval = 0;
 989
 990         switch (state) {
 991         case STATE_RADIO_ON:
 992                 retval = rt2500usb_enable_radio(rt2x00dev);
 993                 break;
 994         case STATE_RADIO_OFF:
 995                 rt2500usb_disable_radio(rt2x00dev);
 996                 break;
 997         case STATE_RADIO_RX_ON:
 998         case STATE_RADIO_RX_ON_LINK:
 999                 rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
1000                 break;
1001         case STATE_RADIO_RX_OFF:
1002         case STATE_RADIO_RX_OFF_LINK:
1003                 rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
1004                 break;
1005         case STATE_DEEP_SLEEP:
1006         case STATE_SLEEP:
1007         case STATE_STANDBY:
1008         case STATE_AWAKE:
1009                 retval = rt2500usb_set_state(rt2x00dev, state);
1010                 break;
1011         default:
1012                 retval = -ENOTSUPP;
1013                 break;
1014         }
1015
1016         return retval;
1017 }
1018
1019 /*
1020  * TX descriptor initialization
1021  */
1022 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1023                                     struct sk_buff *skb,
1024                                     struct txentry_desc *txdesc,
1025                                     struct ieee80211_tx_control *control)
1026 {
1027         struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1028         __le32 *txd = skbdesc->desc;
1029         u32 word;
1030
1031         /*
1032          * Start writing the descriptor words.
1033          */
1034         rt2x00_desc_read(txd, 1, &word);
1035         rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1036         rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1037         rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1038         rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1039         rt2x00_desc_write(txd, 1, word);
1040
1041         rt2x00_desc_read(txd, 2, &word);
1042         rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1043         rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1044         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1045         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1046         rt2x00_desc_write(txd, 2, word);
1047
1048         rt2x00_desc_read(txd, 0, &word);
1049         rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, control->retry_limit);
1050         rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1051                            test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1052         rt2x00_set_field32(&word, TXD_W0_ACK,
1053                            test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1054         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1055                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1056         rt2x00_set_field32(&word, TXD_W0_OFDM,
1057                            test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
1058         rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1059                            !!(control->flags & IEEE80211_TXCTL_FIRST_FRAGMENT));
1060         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1061         rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skbdesc->data_len);
1062         rt2x00_set_field32(&word, TXD_W0_CIPHER, CIPHER_NONE);
1063         rt2x00_desc_write(txd, 0, word);
1064 }
1065
1066 static int rt2500usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
1067                                      struct sk_buff *skb)
1068 {
1069         int length;
1070
1071         /*
1072          * The length _must_ be a multiple of 2,
1073          * but it must _not_ be a multiple of the USB packet size.
1074          */
1075         length = roundup(skb->len, 2);
1076         length += (2 * !(length % rt2x00dev->usb_maxpacket));
1077
1078         return length;
1079 }
1080
1081 /*
1082  * TX data initialization
1083  */
1084 static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1085                                     const unsigned int queue)
1086 {
1087         u16 reg;
1088
1089         if (queue != RT2X00_BCN_QUEUE_BEACON)
1090                 return;
1091
1092         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1093         if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
1094                 rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
1095                 /*
1096                  * Beacon generation will fail initially.
1097                  * To prevent this we need to register the TXRX_CSR19
1098                  * register several times.
1099                  */
1100                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1101                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1102                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1103                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1104                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1105         }
1106 }
1107
1108 /*
1109  * RX control handlers
1110  */
1111 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1112                                   struct rxdone_entry_desc *rxdesc)
1113 {
1114         struct queue_entry_priv_usb_rx *priv_rx = entry->priv_data;
1115         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1116         __le32 *rxd =
1117             (__le32 *)(entry->skb->data +
1118                        (priv_rx->urb->actual_length - entry->queue->desc_size));
1119         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data;
1120         int header_size = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control));
1121         u32 word0;
1122         u32 word1;
1123
1124         rt2x00_desc_read(rxd, 0, &word0);
1125         rt2x00_desc_read(rxd, 1, &word1);
1126
1127         rxdesc->flags = 0;
1128         if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1129                 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1130         if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1131                 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1132
1133         /*
1134          * Obtain the status about this packet.
1135          */
1136         rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1137         rxdesc->rssi = rt2x00_get_field32(word1, RXD_W1_RSSI) -
1138             entry->queue->rt2x00dev->rssi_offset;
1139         rxdesc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
1140         rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1141         rxdesc->my_bss = !!rt2x00_get_field32(word0, RXD_W0_MY_BSS);
1142
1143         /*
1144          * The data behind the ieee80211 header must be
1145          * aligned on a 4 byte boundary.
1146          */
1147         if (header_size % 4 == 0) {
1148                 skb_push(entry->skb, 2);
1149                 memmove(entry->skb->data, entry->skb->data + 2,
1150                         entry->skb->len - 2);
1151         }
1152
1153         /*
1154          * Set descriptor pointer.
1155          */
1156         skbdesc->data = entry->skb->data;
1157         skbdesc->data_len = entry->queue->data_size;
1158         skbdesc->desc = entry->skb->data + rxdesc->size;
1159         skbdesc->desc_len = entry->queue->desc_size;
1160
1161         /*
1162          * Remove descriptor from skb buffer and trim the whole thing
1163          * down to only contain data.
1164          */
1165         skb_trim(entry->skb, rxdesc->size);
1166 }
1167
1168 /*
1169  * Interrupt functions.
1170  */
1171 static void rt2500usb_beacondone(struct urb *urb)
1172 {
1173         struct queue_entry *entry = (struct queue_entry *)urb->context;
1174         struct queue_entry_priv_usb_bcn *priv_bcn = entry->priv_data;
1175
1176         if (!test_bit(DEVICE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1177                 return;
1178
1179         /*
1180          * Check if this was the guardian beacon,
1181          * if that was the case we need to send the real beacon now.
1182          * Otherwise we should free the sk_buffer, the device
1183          * should be doing the rest of the work now.
1184          */
1185         if (priv_bcn->guardian_urb == urb) {
1186                 usb_submit_urb(priv_bcn->urb, GFP_ATOMIC);
1187         } else if (priv_bcn->urb == urb) {
1188                 dev_kfree_skb(entry->skb);
1189                 entry->skb = NULL;
1190         }
1191 }
1192
1193 /*
1194  * Device probe functions.
1195  */
1196 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1197 {
1198         u16 word;
1199         u8 *mac;
1200         u8 bbp;
1201
1202         rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1203
1204         /*
1205          * Start validation of the data that has been read.
1206          */
1207         mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1208         if (!is_valid_ether_addr(mac)) {
1209                 DECLARE_MAC_BUF(macbuf);
1210
1211                 random_ether_addr(mac);
1212                 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
1213         }
1214
1215         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1216         if (word == 0xffff) {
1217                 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1218                 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1219                                    ANTENNA_SW_DIVERSITY);
1220                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1221                                    ANTENNA_SW_DIVERSITY);
1222                 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1223                                    LED_MODE_DEFAULT);
1224                 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1225                 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1226                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1227                 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1228                 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1229         }
1230
1231         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1232         if (word == 0xffff) {
1233                 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1234                 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1235                 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1236                 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1237                 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1238         }
1239
1240         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1241         if (word == 0xffff) {
1242                 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1243                                    DEFAULT_RSSI_OFFSET);
1244                 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1245                 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1246         }
1247
1248         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1249         if (word == 0xffff) {
1250                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1251                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1252                 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1253         }
1254
1255         /*
1256          * Switch lower vgc bound to current BBP R17 value,
1257          * lower the value a bit for better quality.
1258          */
1259         rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1260         bbp -= 6;
1261
1262         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1263         if (word == 0xffff) {
1264                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1265                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1266                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1267                 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1268         }
1269
1270         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1271         if (word == 0xffff) {
1272                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1273                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1274                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1275                 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1276         } else {
1277                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1278                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1279         }
1280
1281         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1282         if (word == 0xffff) {
1283                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1284                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1285                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1286                 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1287         }
1288
1289         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1290         if (word == 0xffff) {
1291                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1292                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1293                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1294                 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1295         }
1296
1297         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1298         if (word == 0xffff) {
1299                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1300                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1301                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1302                 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1303         }
1304
1305         return 0;
1306 }
1307
1308 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1309 {
1310         u16 reg;
1311         u16 value;
1312         u16 eeprom;
1313
1314         /*
1315          * Read EEPROM word for configuration.
1316          */
1317         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1318
1319         /*
1320          * Identify RF chipset.
1321          */
1322         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1323         rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1324         rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1325
1326         if (!rt2x00_check_rev(&rt2x00dev->chip, 0)) {
1327                 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1328                 return -ENODEV;
1329         }
1330
1331         if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
1332             !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
1333             !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
1334             !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
1335             !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
1336             !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1337                 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1338                 return -ENODEV;
1339         }
1340
1341         /*
1342          * Identify default antenna configuration.
1343          */
1344         rt2x00dev->default_ant.tx =
1345             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1346         rt2x00dev->default_ant.rx =
1347             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1348
1349         /*
1350          * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1351          * I am not 100% sure about this, but the legacy drivers do not
1352          * indicate antenna swapping in software is required when
1353          * diversity is enabled.
1354          */
1355         if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1356                 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1357         if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1358                 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1359
1360         /*
1361          * Store led mode, for correct led behaviour.
1362          */
1363 #ifdef CONFIG_RT2500USB_LEDS
1364         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1365
1366         switch (value) {
1367         case LED_MODE_ASUS:
1368         case LED_MODE_ALPHA:
1369         case LED_MODE_DEFAULT:
1370                 rt2x00dev->led_flags = LED_SUPPORT_RADIO;
1371                 break;
1372         case LED_MODE_TXRX_ACTIVITY:
1373                 rt2x00dev->led_flags =
1374                     LED_SUPPORT_RADIO | LED_SUPPORT_ACTIVITY;
1375                 break;
1376         case LED_MODE_SIGNAL_STRENGTH:
1377                 rt2x00dev->led_flags = LED_SUPPORT_RADIO;
1378                 break;
1379         }
1380 #endif /* CONFIG_RT2500USB_LEDS */
1381
1382         /*
1383          * Check if the BBP tuning should be disabled.
1384          */
1385         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1386         if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1387                 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1388
1389         /*
1390          * Read the RSSI <-> dBm offset information.
1391          */
1392         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1393         rt2x00dev->rssi_offset =
1394             rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1395
1396         return 0;
1397 }
1398
1399 /*
1400  * RF value list for RF2522
1401  * Supports: 2.4 GHz
1402  */
1403 static const struct rf_channel rf_vals_bg_2522[] = {
1404         { 1,  0x00002050, 0x000c1fda, 0x00000101, 0 },
1405         { 2,  0x00002050, 0x000c1fee, 0x00000101, 0 },
1406         { 3,  0x00002050, 0x000c2002, 0x00000101, 0 },
1407         { 4,  0x00002050, 0x000c2016, 0x00000101, 0 },
1408         { 5,  0x00002050, 0x000c202a, 0x00000101, 0 },
1409         { 6,  0x00002050, 0x000c203e, 0x00000101, 0 },
1410         { 7,  0x00002050, 0x000c2052, 0x00000101, 0 },
1411         { 8,  0x00002050, 0x000c2066, 0x00000101, 0 },
1412         { 9,  0x00002050, 0x000c207a, 0x00000101, 0 },
1413         { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1414         { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1415         { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1416         { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1417         { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1418 };
1419
1420 /*
1421  * RF value list for RF2523
1422  * Supports: 2.4 GHz
1423  */
1424 static const struct rf_channel rf_vals_bg_2523[] = {
1425         { 1,  0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1426         { 2,  0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1427         { 3,  0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1428         { 4,  0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1429         { 5,  0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1430         { 6,  0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1431         { 7,  0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1432         { 8,  0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1433         { 9,  0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1434         { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1435         { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1436         { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1437         { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1438         { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1439 };
1440
1441 /*
1442  * RF value list for RF2524
1443  * Supports: 2.4 GHz
1444  */
1445 static const struct rf_channel rf_vals_bg_2524[] = {
1446         { 1,  0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1447         { 2,  0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1448         { 3,  0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1449         { 4,  0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1450         { 5,  0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1451         { 6,  0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1452         { 7,  0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1453         { 8,  0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1454         { 9,  0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1455         { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1456         { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1457         { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1458         { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1459         { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1460 };
1461
1462 /*
1463  * RF value list for RF2525
1464  * Supports: 2.4 GHz
1465  */
1466 static const struct rf_channel rf_vals_bg_2525[] = {
1467         { 1,  0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1468         { 2,  0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1469         { 3,  0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1470         { 4,  0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1471         { 5,  0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1472         { 6,  0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1473         { 7,  0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1474         { 8,  0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1475         { 9,  0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1476         { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1477         { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1478         { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1479         { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1480         { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1481 };
1482
1483 /*
1484  * RF value list for RF2525e
1485  * Supports: 2.4 GHz
1486  */
1487 static const struct rf_channel rf_vals_bg_2525e[] = {
1488         { 1,  0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1489         { 2,  0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1490         { 3,  0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1491         { 4,  0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1492         { 5,  0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1493         { 6,  0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1494         { 7,  0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1495         { 8,  0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1496         { 9,  0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1497         { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1498         { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1499         { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1500         { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1501         { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1502 };
1503
1504 /*
1505  * RF value list for RF5222
1506  * Supports: 2.4 GHz & 5.2 GHz
1507  */
1508 static const struct rf_channel rf_vals_5222[] = {
1509         { 1,  0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1510         { 2,  0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1511         { 3,  0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1512         { 4,  0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1513         { 5,  0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1514         { 6,  0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1515         { 7,  0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1516         { 8,  0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1517         { 9,  0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1518         { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1519         { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1520         { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1521         { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1522         { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1523
1524         /* 802.11 UNI / HyperLan 2 */
1525         { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1526         { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1527         { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1528         { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1529         { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1530         { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1531         { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1532         { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1533
1534         /* 802.11 HyperLan 2 */
1535         { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1536         { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1537         { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1538         { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1539         { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1540         { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1541         { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1542         { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1543         { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1544         { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1545
1546         /* 802.11 UNII */
1547         { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1548         { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1549         { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1550         { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1551         { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1552 };
1553
1554 static void rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1555 {
1556         struct hw_mode_spec *spec = &rt2x00dev->spec;
1557         u8 *txpower;
1558         unsigned int i;
1559
1560         /*
1561          * Initialize all hw fields.
1562          */
1563         rt2x00dev->hw->flags =
1564             IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
1565             IEEE80211_HW_RX_INCLUDES_FCS |
1566             IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
1567         rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1568         rt2x00dev->hw->max_signal = MAX_SIGNAL;
1569         rt2x00dev->hw->max_rssi = MAX_RX_SSI;
1570         rt2x00dev->hw->queues = 2;
1571
1572         SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
1573         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1574                                 rt2x00_eeprom_addr(rt2x00dev,
1575                                                    EEPROM_MAC_ADDR_0));
1576
1577         /*
1578          * Convert tx_power array in eeprom.
1579          */
1580         txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1581         for (i = 0; i < 14; i++)
1582                 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
1583
1584         /*
1585          * Initialize hw_mode information.
1586          */
1587         spec->num_modes = 2;
1588         spec->num_rates = 12;
1589         spec->tx_power_a = NULL;
1590         spec->tx_power_bg = txpower;
1591         spec->tx_power_default = DEFAULT_TXPOWER;
1592
1593         if (rt2x00_rf(&rt2x00dev->chip, RF2522)) {
1594                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1595                 spec->channels = rf_vals_bg_2522;
1596         } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) {
1597                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1598                 spec->channels = rf_vals_bg_2523;
1599         } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) {
1600                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1601                 spec->channels = rf_vals_bg_2524;
1602         } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
1603                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1604                 spec->channels = rf_vals_bg_2525;
1605         } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
1606                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1607                 spec->channels = rf_vals_bg_2525e;
1608         } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1609                 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1610                 spec->channels = rf_vals_5222;
1611                 spec->num_modes = 3;
1612         }
1613 }
1614
1615 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1616 {
1617         int retval;
1618
1619         /*
1620          * Allocate eeprom data.
1621          */
1622         retval = rt2500usb_validate_eeprom(rt2x00dev);
1623         if (retval)
1624                 return retval;
1625
1626         retval = rt2500usb_init_eeprom(rt2x00dev);
1627         if (retval)
1628                 return retval;
1629
1630         /*
1631          * Initialize hw specifications.
1632          */
1633         rt2500usb_probe_hw_mode(rt2x00dev);
1634
1635         /*
1636          * This device requires the atim queue
1637          */
1638         __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1639         __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1640
1641         /*
1642          * Set the rssi offset.
1643          */
1644         rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1645
1646         return 0;
1647 }
1648
1649 /*
1650  * IEEE80211 stack callback functions.
1651  */
1652 static void rt2500usb_configure_filter(struct ieee80211_hw *hw,
1653                                        unsigned int changed_flags,
1654                                        unsigned int *total_flags,
1655                                        int mc_count,
1656                                        struct dev_addr_list *mc_list)
1657 {
1658         struct rt2x00_dev *rt2x00dev = hw->priv;
1659         u16 reg;
1660
1661         /*
1662          * Mask off any flags we are going to ignore from
1663          * the total_flags field.
1664          */
1665         *total_flags &=
1666             FIF_ALLMULTI |
1667             FIF_FCSFAIL |
1668             FIF_PLCPFAIL |
1669             FIF_CONTROL |
1670             FIF_OTHER_BSS |
1671             FIF_PROMISC_IN_BSS;
1672
1673         /*
1674          * Apply some rules to the filters:
1675          * - Some filters imply different filters to be set.
1676          * - Some things we can't filter out at all.
1677          */
1678         if (mc_count)
1679                 *total_flags |= FIF_ALLMULTI;
1680         if (*total_flags & FIF_OTHER_BSS ||
1681             *total_flags & FIF_PROMISC_IN_BSS)
1682                 *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS;
1683
1684         /*
1685          * Check if there is any work left for us.
1686          */
1687         if (rt2x00dev->packet_filter == *total_flags)
1688                 return;
1689         rt2x00dev->packet_filter = *total_flags;
1690
1691         /*
1692          * When in atomic context, reschedule and let rt2x00lib
1693          * call this function again.
1694          */
1695         if (in_atomic()) {
1696                 queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work);
1697                 return;
1698         }
1699
1700         /*
1701          * Start configuration steps.
1702          * Note that the version error will always be dropped
1703          * and broadcast frames will always be accepted since
1704          * there is no filter for it at this time.
1705          */
1706         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
1707         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC,
1708                            !(*total_flags & FIF_FCSFAIL));
1709         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL,
1710                            !(*total_flags & FIF_PLCPFAIL));
1711         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL,
1712                            !(*total_flags & FIF_CONTROL));
1713         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME,
1714                            !(*total_flags & FIF_PROMISC_IN_BSS));
1715         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS,
1716                            !(*total_flags & FIF_PROMISC_IN_BSS));
1717         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
1718         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_MULTICAST,
1719                            !(*total_flags & FIF_ALLMULTI));
1720         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_BROADCAST, 0);
1721         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
1722 }
1723
1724 static int rt2500usb_beacon_update(struct ieee80211_hw *hw,
1725                                    struct sk_buff *skb,
1726                                    struct ieee80211_tx_control *control)
1727 {
1728         struct rt2x00_dev *rt2x00dev = hw->priv;
1729         struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev);
1730         struct rt2x00_intf *intf = vif_to_intf(control->vif);
1731         struct queue_entry_priv_usb_bcn *priv_bcn;
1732         struct skb_frame_desc *skbdesc;
1733         int pipe = usb_sndbulkpipe(usb_dev, 1);
1734         int length;
1735
1736         if (unlikely(!intf->beacon))
1737                 return -ENOBUFS;
1738
1739         priv_bcn = intf->beacon->priv_data;
1740
1741         /*
1742          * Add the descriptor in front of the skb.
1743          */
1744         skb_push(skb, intf->beacon->queue->desc_size);
1745         memset(skb->data, 0, intf->beacon->queue->desc_size);
1746
1747         /*
1748          * Fill in skb descriptor
1749          */
1750         skbdesc = get_skb_frame_desc(skb);
1751         memset(skbdesc, 0, sizeof(*skbdesc));
1752         skbdesc->data = skb->data + intf->beacon->queue->desc_size;
1753         skbdesc->data_len = skb->len - intf->beacon->queue->desc_size;
1754         skbdesc->desc = skb->data;
1755         skbdesc->desc_len = intf->beacon->queue->desc_size;
1756         skbdesc->entry = intf->beacon;
1757
1758         /*
1759          * mac80211 doesn't provide the control->queue variable
1760          * for beacons. Set our own queue identification so
1761          * it can be used during descriptor initialization.
1762          */
1763         control->queue = RT2X00_BCN_QUEUE_BEACON;
1764         rt2x00lib_write_tx_desc(rt2x00dev, skb, control);
1765
1766         /*
1767          * USB devices cannot blindly pass the skb->len as the
1768          * length of the data to usb_fill_bulk_urb. Pass the skb
1769          * to the driver to determine what the length should be.
1770          */
1771         length = rt2500usb_get_tx_data_len(rt2x00dev, skb);
1772
1773         usb_fill_bulk_urb(priv_bcn->urb, usb_dev, pipe,
1774                           skb->data, length, rt2500usb_beacondone,
1775                           intf->beacon);
1776
1777         /*
1778          * Second we need to create the guardian byte.
1779          * We only need a single byte, so lets recycle
1780          * the 'flags' field we are not using for beacons.
1781          */
1782         priv_bcn->guardian_data = 0;
1783         usb_fill_bulk_urb(priv_bcn->guardian_urb, usb_dev, pipe,
1784                           &priv_bcn->guardian_data, 1, rt2500usb_beacondone,
1785                           intf->beacon);
1786
1787         /*
1788          * Send out the guardian byte.
1789          */
1790         usb_submit_urb(priv_bcn->guardian_urb, GFP_ATOMIC);
1791
1792         /*
1793          * Enable beacon generation.
1794          */
1795         rt2500usb_kick_tx_queue(rt2x00dev, control->queue);
1796
1797         return 0;
1798 }
1799
1800 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1801         .tx                     = rt2x00mac_tx,
1802         .start                  = rt2x00mac_start,
1803         .stop                   = rt2x00mac_stop,
1804         .add_interface          = rt2x00mac_add_interface,
1805         .remove_interface       = rt2x00mac_remove_interface,
1806         .config                 = rt2x00mac_config,
1807         .config_interface       = rt2x00mac_config_interface,
1808         .configure_filter       = rt2500usb_configure_filter,
1809         .get_stats              = rt2x00mac_get_stats,
1810         .bss_info_changed       = rt2x00mac_bss_info_changed,
1811         .conf_tx                = rt2x00mac_conf_tx,
1812         .get_tx_stats           = rt2x00mac_get_tx_stats,
1813         .beacon_update          = rt2500usb_beacon_update,
1814 };
1815
1816 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1817         .probe_hw               = rt2500usb_probe_hw,
1818         .initialize             = rt2x00usb_initialize,
1819         .uninitialize           = rt2x00usb_uninitialize,
1820         .init_rxentry           = rt2x00usb_init_rxentry,
1821         .init_txentry           = rt2x00usb_init_txentry,
1822         .set_device_state       = rt2500usb_set_device_state,
1823         .link_stats             = rt2500usb_link_stats,
1824         .reset_tuner            = rt2500usb_reset_tuner,
1825         .link_tuner             = rt2500usb_link_tuner,
1826         .led_brightness         = rt2500usb_led_brightness,
1827         .write_tx_desc          = rt2500usb_write_tx_desc,
1828         .write_tx_data          = rt2x00usb_write_tx_data,
1829         .get_tx_data_len        = rt2500usb_get_tx_data_len,
1830         .kick_tx_queue          = rt2500usb_kick_tx_queue,
1831         .fill_rxdone            = rt2500usb_fill_rxdone,
1832         .config_intf            = rt2500usb_config_intf,
1833         .config_preamble        = rt2500usb_config_preamble,
1834         .config                 = rt2500usb_config,
1835 };
1836
1837 static const struct data_queue_desc rt2500usb_queue_rx = {
1838         .entry_num              = RX_ENTRIES,
1839         .data_size              = DATA_FRAME_SIZE,
1840         .desc_size              = RXD_DESC_SIZE,
1841         .priv_size              = sizeof(struct queue_entry_priv_usb_rx),
1842 };
1843
1844 static const struct data_queue_desc rt2500usb_queue_tx = {
1845         .entry_num              = TX_ENTRIES,
1846         .data_size              = DATA_FRAME_SIZE,
1847         .desc_size              = TXD_DESC_SIZE,
1848         .priv_size              = sizeof(struct queue_entry_priv_usb_tx),
1849 };
1850
1851 static const struct data_queue_desc rt2500usb_queue_bcn = {
1852         .entry_num              = BEACON_ENTRIES,
1853         .data_size              = MGMT_FRAME_SIZE,
1854         .desc_size              = TXD_DESC_SIZE,
1855         .priv_size              = sizeof(struct queue_entry_priv_usb_bcn),
1856 };
1857
1858 static const struct data_queue_desc rt2500usb_queue_atim = {
1859         .entry_num              = ATIM_ENTRIES,
1860         .data_size              = DATA_FRAME_SIZE,
1861         .desc_size              = TXD_DESC_SIZE,
1862         .priv_size              = sizeof(struct queue_entry_priv_usb_tx),
1863 };
1864
1865 static const struct rt2x00_ops rt2500usb_ops = {
1866         .name           = KBUILD_MODNAME,
1867         .max_sta_intf   = 1,
1868         .max_ap_intf    = 1,
1869         .eeprom_size    = EEPROM_SIZE,
1870         .rf_size        = RF_SIZE,
1871         .rx             = &rt2500usb_queue_rx,
1872         .tx             = &rt2500usb_queue_tx,
1873         .bcn            = &rt2500usb_queue_bcn,
1874         .atim           = &rt2500usb_queue_atim,
1875         .lib            = &rt2500usb_rt2x00_ops,
1876         .hw             = &rt2500usb_mac80211_ops,
1877 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1878         .debugfs        = &rt2500usb_rt2x00debug,
1879 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1880 };
1881
1882 /*
1883  * rt2500usb module information.
1884  */
1885 static struct usb_device_id rt2500usb_device_table[] = {
1886         /* ASUS */
1887         { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1888         { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1889         /* Belkin */
1890         { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1891         { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1892         { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1893         /* Cisco Systems */
1894         { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1895         { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1896         { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1897         /* Conceptronic */
1898         { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1899         /* D-LINK */
1900         { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1901         /* Gigabyte */
1902         { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1903         { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1904         /* Hercules */
1905         { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1906         /* Melco */
1907         { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
1908         { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1909         { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1910         { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1911         { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1912         /* MSI */
1913         { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1914         { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1915         { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1916         /* Ralink */
1917         { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1918         { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1919         { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1920         { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1921         /* Siemens */
1922         { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1923         /* SMC */
1924         { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1925         /* Spairon */
1926         { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1927         /* Trust */
1928         { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1929         /* Zinwell */
1930         { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1931         { 0, }
1932 };
1933
1934 MODULE_AUTHOR(DRV_PROJECT);
1935 MODULE_VERSION(DRV_VERSION);
1936 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1937 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1938 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1939 MODULE_LICENSE("GPL");
1940
1941 static struct usb_driver rt2500usb_driver = {
1942         .name           = KBUILD_MODNAME,
1943         .id_table       = rt2500usb_device_table,
1944         .probe          = rt2x00usb_probe,
1945         .disconnect     = rt2x00usb_disconnect,
1946         .suspend        = rt2x00usb_suspend,
1947         .resume         = rt2x00usb_resume,
1948 };
1949
1950 static int __init rt2500usb_init(void)
1951 {
1952         return usb_register(&rt2500usb_driver);
1953 }
1954
1955 static void __exit rt2500usb_exit(void)
1956 {
1957         usb_deregister(&rt2500usb_driver);
1958 }
1959
1960 module_init(rt2500usb_init);
1961 module_exit(rt2500usb_exit);