drivers/net/wireless/rt2x00/rt2500usb.c

   1 /*
   2         Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
   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/slab.h>
  33 #include <linux/usb.h>
  34
  35 #include "rt2x00.h"
  36 #include "rt2x00usb.h"
  37 #include "rt2500usb.h"
  38
  39 /*
  40  * Allow hardware encryption to be disabled.
  41  */
  42 static int modparam_nohwcrypt = 0;
  43 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
  44 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
  45
  46 /*
  47  * Register access.
  48  * All access to the CSR registers will go through the methods
  49  * rt2500usb_register_read and rt2500usb_register_write.
  50  * BBP and RF register require indirect register access,
  51  * and use the CSR registers BBPCSR and RFCSR to achieve this.
  52  * These indirect registers work with busy bits,
  53  * and we will try maximal REGISTER_BUSY_COUNT times to access
  54  * the register while taking a REGISTER_BUSY_DELAY us delay
  55  * between each attampt. When the busy bit is still set at that time,
  56  * the access attempt is considered to have failed,
  57  * and we will print an error.
  58  * If the csr_mutex is already held then the _lock variants must
  59  * be used instead.
  60  */
  61 static inline void rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
  62                                            const unsigned int offset,
  63                                            u16 *value)
  64 {
  65         __le16 reg;
  66         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
  67                                       USB_VENDOR_REQUEST_IN, offset,
  68                                       &reg, sizeof(reg), REGISTER_TIMEOUT);
  69         *value = le16_to_cpu(reg);
  70 }
  71
  72 static inline void rt2500usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
  73                                                 const unsigned int offset,
  74                                                 u16 *value)
  75 {
  76         __le16 reg;
  77         rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
  78                                        USB_VENDOR_REQUEST_IN, offset,
  79                                        &reg, sizeof(reg), REGISTER_TIMEOUT);
  80         *value = le16_to_cpu(reg);
  81 }
  82
  83 static inline void rt2500usb_register_multiread(struct rt2x00_dev *rt2x00dev,
  84                                                 const unsigned int offset,
  85                                                 void *value, const u16 length)
  86 {
  87         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
  88                                       USB_VENDOR_REQUEST_IN, offset,
  89                                       value, length,
  90                                       REGISTER_TIMEOUT16(length));
  91 }
  92
  93 static inline void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
  94                                             const unsigned int offset,
  95                                             u16 value)
  96 {
  97         __le16 reg = cpu_to_le16(value);
  98         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
  99                                       USB_VENDOR_REQUEST_OUT, offset,
 100                                       &reg, sizeof(reg), REGISTER_TIMEOUT);
 101 }
 102
 103 static inline void rt2500usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
 104                                                  const unsigned int offset,
 105                                                  u16 value)
 106 {
 107         __le16 reg = cpu_to_le16(value);
 108         rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
 109                                        USB_VENDOR_REQUEST_OUT, offset,
 110                                        &reg, sizeof(reg), REGISTER_TIMEOUT);
 111 }
 112
 113 static inline void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
 114                                                  const unsigned int offset,
 115                                                  void *value, const u16 length)
 116 {
 117         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
 118                                       USB_VENDOR_REQUEST_OUT, offset,
 119                                       value, length,
 120                                       REGISTER_TIMEOUT16(length));
 121 }
 122
 123 static int rt2500usb_regbusy_read(struct rt2x00_dev *rt2x00dev,
 124                                   const unsigned int offset,
 125                                   struct rt2x00_field16 field,
 126                                   u16 *reg)
 127 {
 128         unsigned int i;
 129
 130         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 131                 rt2500usb_register_read_lock(rt2x00dev, offset, reg);
 132                 if (!rt2x00_get_field16(*reg, field))
 133                         return 1;
 134                 udelay(REGISTER_BUSY_DELAY);
 135         }
 136
 137         ERROR(rt2x00dev, "Indirect register access failed: "
 138               "offset=0x%.08x, value=0x%.08x\n", offset, *reg);
 139         *reg = ~0;
 140
 141         return 0;
 142 }
 143
 144 #define WAIT_FOR_BBP(__dev, __reg) \
 145         rt2500usb_regbusy_read((__dev), PHY_CSR8, PHY_CSR8_BUSY, (__reg))
 146 #define WAIT_FOR_RF(__dev, __reg) \
 147         rt2500usb_regbusy_read((__dev), PHY_CSR10, PHY_CSR10_RF_BUSY, (__reg))
 148
 149 static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
 150                                 const unsigned int word, const u8 value)
 151 {
 152         u16 reg;
 153
 154         mutex_lock(&rt2x00dev->csr_mutex);
 155
 156         /*
 157          * Wait until the BBP becomes available, afterwards we
 158          * can safely write the new data into the register.
 159          */
 160         if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
 161                 reg = 0;
 162                 rt2x00_set_field16(&reg, PHY_CSR7_DATA, value);
 163                 rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
 164                 rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 0);
 165
 166                 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
 167         }
 168
 169         mutex_unlock(&rt2x00dev->csr_mutex);
 170 }
 171
 172 static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
 173                                const unsigned int word, u8 *value)
 174 {
 175         u16 reg;
 176
 177         mutex_lock(&rt2x00dev->csr_mutex);
 178
 179         /*
 180          * Wait until the BBP becomes available, afterwards we
 181          * can safely write the read request into the register.
 182          * After the data has been written, we wait until hardware
 183          * returns the correct value, if at any time the register
 184          * doesn't become available in time, reg will be 0xffffffff
 185          * which means we return 0xff to the caller.
 186          */
 187         if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
 188                 reg = 0;
 189                 rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
 190                 rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 1);
 191
 192                 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
 193
 194                 if (WAIT_FOR_BBP(rt2x00dev, &reg))
 195                         rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, &reg);
 196         }
 197
 198         *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
 199
 200         mutex_unlock(&rt2x00dev->csr_mutex);
 201 }
 202
 203 static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
 204                                const unsigned int word, const u32 value)
 205 {
 206         u16 reg;
 207
 208         mutex_lock(&rt2x00dev->csr_mutex);
 209
 210         /*
 211          * Wait until the RF becomes available, afterwards we
 212          * can safely write the new data into the register.
 213          */
 214         if (WAIT_FOR_RF(rt2x00dev, &reg)) {
 215                 reg = 0;
 216                 rt2x00_set_field16(&reg, PHY_CSR9_RF_VALUE, value);
 217                 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR9, reg);
 218
 219                 reg = 0;
 220                 rt2x00_set_field16(&reg, PHY_CSR10_RF_VALUE, value >> 16);
 221                 rt2x00_set_field16(&reg, PHY_CSR10_RF_NUMBER_OF_BITS, 20);
 222                 rt2x00_set_field16(&reg, PHY_CSR10_RF_IF_SELECT, 0);
 223                 rt2x00_set_field16(&reg, PHY_CSR10_RF_BUSY, 1);
 224
 225                 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR10, reg);
 226                 rt2x00_rf_write(rt2x00dev, word, value);
 227         }
 228
 229         mutex_unlock(&rt2x00dev->csr_mutex);
 230 }
 231
 232 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 233 static void _rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
 234                                      const unsigned int offset,
 235                                      u32 *value)
 236 {
 237         rt2500usb_register_read(rt2x00dev, offset, (u16 *)value);
 238 }
 239
 240 static void _rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
 241                                       const unsigned int offset,
 242                                       u32 value)
 243 {
 244         rt2500usb_register_write(rt2x00dev, offset, value);
 245 }
 246
 247 static const struct rt2x00debug rt2500usb_rt2x00debug = {
 248         .owner  = THIS_MODULE,
 249         .csr    = {
 250                 .read           = _rt2500usb_register_read,
 251                 .write          = _rt2500usb_register_write,
 252                 .flags          = RT2X00DEBUGFS_OFFSET,
 253                 .word_base      = CSR_REG_BASE,
 254                 .word_size      = sizeof(u16),
 255                 .word_count     = CSR_REG_SIZE / sizeof(u16),
 256         },
 257         .eeprom = {
 258                 .read           = rt2x00_eeprom_read,
 259                 .write          = rt2x00_eeprom_write,
 260                 .word_base      = EEPROM_BASE,
 261                 .word_size      = sizeof(u16),
 262                 .word_count     = EEPROM_SIZE / sizeof(u16),
 263         },
 264         .bbp    = {
 265                 .read           = rt2500usb_bbp_read,
 266                 .write          = rt2500usb_bbp_write,
 267                 .word_base      = BBP_BASE,
 268                 .word_size      = sizeof(u8),
 269                 .word_count     = BBP_SIZE / sizeof(u8),
 270         },
 271         .rf     = {
 272                 .read           = rt2x00_rf_read,
 273                 .write          = rt2500usb_rf_write,
 274                 .word_base      = RF_BASE,
 275                 .word_size      = sizeof(u32),
 276                 .word_count     = RF_SIZE / sizeof(u32),
 277         },
 278 };
 279 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 280
 281 static int rt2500usb_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 282 {
 283         u16 reg;
 284
 285         rt2500usb_register_read(rt2x00dev, MAC_CSR19, &reg);
 286         return rt2x00_get_field32(reg, MAC_CSR19_BIT7);
 287 }
 288
 289 #ifdef CONFIG_RT2X00_LIB_LEDS
 290 static void rt2500usb_brightness_set(struct led_classdev *led_cdev,
 291                                      enum led_brightness brightness)
 292 {
 293         struct rt2x00_led *led =
 294             container_of(led_cdev, struct rt2x00_led, led_dev);
 295         unsigned int enabled = brightness != LED_OFF;
 296         u16 reg;
 297
 298         rt2500usb_register_read(led->rt2x00dev, MAC_CSR20, &reg);
 299
 300         if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
 301                 rt2x00_set_field16(&reg, MAC_CSR20_LINK, enabled);
 302         else if (led->type == LED_TYPE_ACTIVITY)
 303                 rt2x00_set_field16(&reg, MAC_CSR20_ACTIVITY, enabled);
 304
 305         rt2500usb_register_write(led->rt2x00dev, MAC_CSR20, reg);
 306 }
 307
 308 static int rt2500usb_blink_set(struct led_classdev *led_cdev,
 309                                unsigned long *delay_on,
 310                                unsigned long *delay_off)
 311 {
 312         struct rt2x00_led *led =
 313             container_of(led_cdev, struct rt2x00_led, led_dev);
 314         u16 reg;
 315
 316         rt2500usb_register_read(led->rt2x00dev, MAC_CSR21, &reg);
 317         rt2x00_set_field16(&reg, MAC_CSR21_ON_PERIOD, *delay_on);
 318         rt2x00_set_field16(&reg, MAC_CSR21_OFF_PERIOD, *delay_off);
 319         rt2500usb_register_write(led->rt2x00dev, MAC_CSR21, reg);
 320
 321         return 0;
 322 }
 323
 324 static void rt2500usb_init_led(struct rt2x00_dev *rt2x00dev,
 325                                struct rt2x00_led *led,
 326                                enum led_type type)
 327 {
 328         led->rt2x00dev = rt2x00dev;
 329         led->type = type;
 330         led->led_dev.brightness_set = rt2500usb_brightness_set;
 331         led->led_dev.blink_set = rt2500usb_blink_set;
 332         led->flags = LED_INITIALIZED;
 333 }
 334 #endif /* CONFIG_RT2X00_LIB_LEDS */
 335
 336 /*
 337  * Configuration handlers.
 338  */
 339
 340 /*
 341  * rt2500usb does not differentiate between shared and pairwise
 342  * keys, so we should use the same function for both key types.
 343  */
 344 static int rt2500usb_config_key(struct rt2x00_dev *rt2x00dev,
 345                                 struct rt2x00lib_crypto *crypto,
 346                                 struct ieee80211_key_conf *key)
 347 {
 348         u32 mask;
 349         u16 reg;
 350         enum cipher curr_cipher;
 351
 352         if (crypto->cmd == SET_KEY) {
 353                 /*
 354                  * Disallow to set WEP key other than with index 0,
 355                  * it is known that not work at least on some hardware.
 356                  * SW crypto will be used in that case.
 357                  */
 358                 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 359                      key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
 360                     key->keyidx != 0)
 361                         return -EOPNOTSUPP;
 362
 363                 /*
 364                  * Pairwise key will always be entry 0, but this
 365                  * could collide with a shared key on the same
 366                  * position...
 367                  */
 368                 mask = TXRX_CSR0_KEY_ID.bit_mask;
 369
 370                 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 371                 curr_cipher = rt2x00_get_field16(reg, TXRX_CSR0_ALGORITHM);
 372                 reg &= mask;
 373
 374                 if (reg && reg == mask)
 375                         return -ENOSPC;
 376
 377                 reg = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);
 378
 379                 key->hw_key_idx += reg ? ffz(reg) : 0;
 380                 /*
 381                  * Hardware requires that all keys use the same cipher
 382                  * (e.g. TKIP-only, AES-only, but not TKIP+AES).
 383                  * If this is not the first key, compare the cipher with the
 384                  * first one and fall back to SW crypto if not the same.
 385                  */
 386                 if (key->hw_key_idx > 0 && crypto->cipher != curr_cipher)
 387                         return -EOPNOTSUPP;
 388
 389                 rt2500usb_register_multiwrite(rt2x00dev, KEY_ENTRY(key->hw_key_idx),
 390                                               crypto->key, sizeof(crypto->key));
 391
 392                 /*
 393                  * The driver does not support the IV/EIV generation
 394                  * in hardware. However it demands the data to be provided
 395                  * both separately as well as inside the frame.
 396                  * We already provided the CONFIG_CRYPTO_COPY_IV to rt2x00lib
 397                  * to ensure rt2x00lib will not strip the data from the
 398                  * frame after the copy, now we must tell mac80211
 399                  * to generate the IV/EIV data.
 400                  */
 401                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
 402                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
 403         }
 404
 405         /*
 406          * TXRX_CSR0_KEY_ID contains only single-bit fields to indicate
 407          * a particular key is valid.
 408          */
 409         rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 410         rt2x00_set_field16(&reg, TXRX_CSR0_ALGORITHM, crypto->cipher);
 411         rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
 412
 413         mask = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);
 414         if (crypto->cmd == SET_KEY)
 415                 mask |= 1 << key->hw_key_idx;
 416         else if (crypto->cmd == DISABLE_KEY)
 417                 mask &= ~(1 << key->hw_key_idx);
 418         rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, mask);
 419         rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 420
 421         return 0;
 422 }
 423
 424 static void rt2500usb_config_filter(struct rt2x00_dev *rt2x00dev,
 425                                     const unsigned int filter_flags)
 426 {
 427         u16 reg;
 428
 429         /*
 430          * Start configuration steps.
 431          * Note that the version error will always be dropped
 432          * and broadcast frames will always be accepted since
 433          * there is no filter for it at this time.
 434          */
 435         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 436         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC,
 437                            !(filter_flags & FIF_FCSFAIL));
 438         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL,
 439                            !(filter_flags & FIF_PLCPFAIL));
 440         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL,
 441                            !(filter_flags & FIF_CONTROL));
 442         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME,
 443                            !(filter_flags & FIF_PROMISC_IN_BSS));
 444         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS,
 445                            !(filter_flags & FIF_PROMISC_IN_BSS) &&
 446                            !rt2x00dev->intf_ap_count);
 447         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
 448         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_MULTICAST,
 449                            !(filter_flags & FIF_ALLMULTI));
 450         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_BROADCAST, 0);
 451         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 452 }
 453
 454 static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
 455                                   struct rt2x00_intf *intf,
 456                                   struct rt2x00intf_conf *conf,
 457                                   const unsigned int flags)
 458 {
 459         unsigned int bcn_preload;
 460         u16 reg;
 461
 462         if (flags & CONFIG_UPDATE_TYPE) {
 463                 /*
 464                  * Enable beacon config
 465                  */
 466                 bcn_preload = PREAMBLE + GET_DURATION(IEEE80211_HEADER, 20);
 467                 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, &reg);
 468                 rt2x00_set_field16(&reg, TXRX_CSR20_OFFSET, bcn_preload >> 6);
 469                 rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW,
 470                                    2 * (conf->type != NL80211_IFTYPE_STATION));
 471                 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
 472
 473                 /*
 474                  * Enable synchronisation.
 475                  */
 476                 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
 477                 rt2x00_set_field16(&reg, TXRX_CSR18_OFFSET, 0);
 478                 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
 479
 480                 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 481                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
 482                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, conf->sync);
 483                 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
 484                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 485         }
 486
 487         if (flags & CONFIG_UPDATE_MAC)
 488                 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac,
 489                                               (3 * sizeof(__le16)));
 490
 491         if (flags & CONFIG_UPDATE_BSSID)
 492                 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid,
 493                                               (3 * sizeof(__le16)));
 494 }
 495
 496 static void rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev,
 497                                  struct rt2x00lib_erp *erp,
 498                                  u32 changed)
 499 {
 500         u16 reg;
 501
 502         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 503                 rt2500usb_register_read(rt2x00dev, TXRX_CSR10, &reg);
 504                 rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE,
 505                                    !!erp->short_preamble);
 506                 rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
 507         }
 508
 509         if (changed & BSS_CHANGED_BASIC_RATES)
 510                 rt2500usb_register_write(rt2x00dev, TXRX_CSR11,
 511                                          erp->basic_rates);
 512
 513         if (changed & BSS_CHANGED_BEACON_INT) {
 514                 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
 515                 rt2x00_set_field16(&reg, TXRX_CSR18_INTERVAL,
 516                                    erp->beacon_int * 4);
 517                 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
 518         }
 519
 520         if (changed & BSS_CHANGED_ERP_SLOT) {
 521                 rt2500usb_register_write(rt2x00dev, MAC_CSR10, erp->slot_time);
 522                 rt2500usb_register_write(rt2x00dev, MAC_CSR11, erp->sifs);
 523                 rt2500usb_register_write(rt2x00dev, MAC_CSR12, erp->eifs);
 524         }
 525 }
 526
 527 static void rt2500usb_config_ant(struct rt2x00_dev *rt2x00dev,
 528                                  struct antenna_setup *ant)
 529 {
 530         u8 r2;
 531         u8 r14;
 532         u16 csr5;
 533         u16 csr6;
 534
 535         /*
 536          * We should never come here because rt2x00lib is supposed
 537          * to catch this and send us the correct antenna explicitely.
 538          */
 539         BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
 540                ant->tx == ANTENNA_SW_DIVERSITY);
 541
 542         rt2500usb_bbp_read(rt2x00dev, 2, &r2);
 543         rt2500usb_bbp_read(rt2x00dev, 14, &r14);
 544         rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
 545         rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
 546
 547         /*
 548          * Configure the TX antenna.
 549          */
 550         switch (ant->tx) {
 551         case ANTENNA_HW_DIVERSITY:
 552                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
 553                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
 554                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
 555                 break;
 556         case ANTENNA_A:
 557                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
 558                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
 559                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
 560                 break;
 561         case ANTENNA_B:
 562         default:
 563                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
 564                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
 565                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
 566                 break;
 567         }
 568
 569         /*
 570          * Configure the RX antenna.
 571          */
 572         switch (ant->rx) {
 573         case ANTENNA_HW_DIVERSITY:
 574                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
 575                 break;
 576         case ANTENNA_A:
 577                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
 578                 break;
 579         case ANTENNA_B:
 580         default:
 581                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
 582                 break;
 583         }
 584
 585         /*
 586          * RT2525E and RT5222 need to flip TX I/Q
 587          */
 588         if (rt2x00_rf(rt2x00dev, RF2525E) || rt2x00_rf(rt2x00dev, RF5222)) {
 589                 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
 590                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
 591                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
 592
 593                 /*
 594                  * RT2525E does not need RX I/Q Flip.
 595                  */
 596                 if (rt2x00_rf(rt2x00dev, RF2525E))
 597                         rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
 598         } else {
 599                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
 600                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
 601         }
 602
 603         rt2500usb_bbp_write(rt2x00dev, 2, r2);
 604         rt2500usb_bbp_write(rt2x00dev, 14, r14);
 605         rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
 606         rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
 607 }
 608
 609 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
 610                                      struct rf_channel *rf, const int txpower)
 611 {
 612         /*
 613          * Set TXpower.
 614          */
 615         rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 616
 617         /*
 618          * For RT2525E we should first set the channel to half band higher.
 619          */
 620         if (rt2x00_rf(rt2x00dev, RF2525E)) {
 621                 static const u32 vals[] = {
 622                         0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
 623                         0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
 624                         0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
 625                         0x00000902, 0x00000906
 626                 };
 627
 628                 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
 629                 if (rf->rf4)
 630                         rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
 631         }
 632
 633         rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
 634         rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
 635         rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
 636         if (rf->rf4)
 637                 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
 638 }
 639
 640 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
 641                                      const int txpower)
 642 {
 643         u32 rf3;
 644
 645         rt2x00_rf_read(rt2x00dev, 3, &rf3);
 646         rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 647         rt2500usb_rf_write(rt2x00dev, 3, rf3);
 648 }
 649
 650 static void rt2500usb_config_ps(struct rt2x00_dev *rt2x00dev,
 651                                 struct rt2x00lib_conf *libconf)
 652 {
 653         enum dev_state state =
 654             (libconf->conf->flags & IEEE80211_CONF_PS) ?
 655                 STATE_SLEEP : STATE_AWAKE;
 656         u16 reg;
 657
 658         if (state == STATE_SLEEP) {
 659                 rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 660                 rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON,
 661                                    rt2x00dev->beacon_int - 20);
 662                 rt2x00_set_field16(&reg, MAC_CSR18_BEACONS_BEFORE_WAKEUP,
 663                                    libconf->conf->listen_interval - 1);
 664
 665                 /* We must first disable autowake before it can be enabled */
 666                 rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 0);
 667                 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 668
 669                 rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 1);
 670                 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 671         } else {
 672                 rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 673                 rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 0);
 674                 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 675         }
 676
 677         rt2x00dev->ops->lib->set_device_state(rt2x00dev, state);
 678 }
 679
 680 static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
 681                              struct rt2x00lib_conf *libconf,
 682                              const unsigned int flags)
 683 {
 684         if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
 685                 rt2500usb_config_channel(rt2x00dev, &libconf->rf,
 686                                          libconf->conf->power_level);
 687         if ((flags & IEEE80211_CONF_CHANGE_POWER) &&
 688             !(flags & IEEE80211_CONF_CHANGE_CHANNEL))
 689                 rt2500usb_config_txpower(rt2x00dev,
 690                                          libconf->conf->power_level);
 691         if (flags & IEEE80211_CONF_CHANGE_PS)
 692                 rt2500usb_config_ps(rt2x00dev, libconf);
 693 }
 694
 695 /*
 696  * Link tuning
 697  */
 698 static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
 699                                  struct link_qual *qual)
 700 {
 701         u16 reg;
 702
 703         /*
 704          * Update FCS error count from register.
 705          */
 706         rt2500usb_register_read(rt2x00dev, STA_CSR0, &reg);
 707         qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
 708
 709         /*
 710          * Update False CCA count from register.
 711          */
 712         rt2500usb_register_read(rt2x00dev, STA_CSR3, &reg);
 713         qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
 714 }
 715
 716 static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev,
 717                                   struct link_qual *qual)
 718 {
 719         u16 eeprom;
 720         u16 value;
 721
 722         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
 723         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
 724         rt2500usb_bbp_write(rt2x00dev, 24, value);
 725
 726         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
 727         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
 728         rt2500usb_bbp_write(rt2x00dev, 25, value);
 729
 730         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
 731         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
 732         rt2500usb_bbp_write(rt2x00dev, 61, value);
 733
 734         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
 735         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
 736         rt2500usb_bbp_write(rt2x00dev, 17, value);
 737
 738         qual->vgc_level = value;
 739 }
 740
 741 /*
 742  * Initialization functions.
 743  */
 744 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
 745 {
 746         u16 reg;
 747
 748         rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
 749                                     USB_MODE_TEST, REGISTER_TIMEOUT);
 750         rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
 751                                     0x00f0, REGISTER_TIMEOUT);
 752
 753         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 754         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
 755         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 756
 757         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
 758         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
 759
 760         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 761         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 1);
 762         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 1);
 763         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 764         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 765
 766         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 767         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 768         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 769         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 770         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 771
 772         rt2500usb_register_read(rt2x00dev, TXRX_CSR5, &reg);
 773         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0, 13);
 774         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0_VALID, 1);
 775         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1, 12);
 776         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1_VALID, 1);
 777         rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
 778
 779         rt2500usb_register_read(rt2x00dev, TXRX_CSR6, &reg);
 780         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0, 10);
 781         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0_VALID, 1);
 782         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1, 11);
 783         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1_VALID, 1);
 784         rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
 785
 786         rt2500usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
 787         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0, 7);
 788         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0_VALID, 1);
 789         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1, 6);
 790         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1_VALID, 1);
 791         rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
 792
 793         rt2500usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
 794         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0, 5);
 795         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0_VALID, 1);
 796         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1, 0);
 797         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1_VALID, 0);
 798         rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
 799
 800         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 801         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 0);
 802         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 0);
 803         rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 0);
 804         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
 805         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 806
 807         rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
 808         rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
 809
 810         if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
 811                 return -EBUSY;
 812
 813         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 814         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 815         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 816         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 1);
 817         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 818
 819         if (rt2x00_rev(rt2x00dev) >= RT2570_VERSION_C) {
 820                 rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
 821                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 0);
 822         } else {
 823                 reg = 0;
 824                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 1);
 825                 rt2x00_set_field16(&reg, PHY_CSR2_LNA_MODE, 3);
 826         }
 827         rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
 828
 829         rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
 830         rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
 831         rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
 832         rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
 833
 834         rt2500usb_register_read(rt2x00dev, MAC_CSR8, &reg);
 835         rt2x00_set_field16(&reg, MAC_CSR8_MAX_FRAME_UNIT,
 836                            rt2x00dev->rx->data_size);
 837         rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
 838
 839         rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 840         rt2x00_set_field16(&reg, TXRX_CSR0_ALGORITHM, CIPHER_NONE);
 841         rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
 842         rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0);
 843         rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 844
 845         rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 846         rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON, 90);
 847         rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 848
 849         rt2500usb_register_read(rt2x00dev, PHY_CSR4, &reg);
 850         rt2x00_set_field16(&reg, PHY_CSR4_LOW_RF_LE, 1);
 851         rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
 852
 853         rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
 854         rt2x00_set_field16(&reg, TXRX_CSR1_AUTO_SEQUENCE, 1);
 855         rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
 856
 857         return 0;
 858 }
 859
 860 static int rt2500usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
 861 {
 862         unsigned int i;
 863         u8 value;
 864
 865         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 866                 rt2500usb_bbp_read(rt2x00dev, 0, &value);
 867                 if ((value != 0xff) && (value != 0x00))
 868                         return 0;
 869                 udelay(REGISTER_BUSY_DELAY);
 870         }
 871
 872         ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
 873         return -EACCES;
 874 }
 875
 876 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
 877 {
 878         unsigned int i;
 879         u16 eeprom;
 880         u8 value;
 881         u8 reg_id;
 882
 883         if (unlikely(rt2500usb_wait_bbp_ready(rt2x00dev)))
 884                 return -EACCES;
 885
 886         rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
 887         rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
 888         rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
 889         rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
 890         rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
 891         rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
 892         rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
 893         rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
 894         rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
 895         rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
 896         rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
 897         rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
 898         rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
 899         rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
 900         rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
 901         rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
 902         rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
 903         rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
 904         rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
 905         rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
 906         rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
 907         rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
 908         rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
 909         rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
 910         rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
 911         rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
 912         rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
 913         rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
 914         rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
 915         rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
 916         rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
 917
 918         for (i = 0; i < EEPROM_BBP_SIZE; i++) {
 919                 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
 920
 921                 if (eeprom != 0xffff && eeprom != 0x0000) {
 922                         reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
 923                         value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
 924                         rt2500usb_bbp_write(rt2x00dev, reg_id, value);
 925                 }
 926         }
 927
 928         return 0;
 929 }
 930
 931 /*
 932  * Device state switch handlers.
 933  */
 934 static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
 935                                 enum dev_state state)
 936 {
 937         u16 reg;
 938
 939         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 940         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX,
 941                            (state == STATE_RADIO_RX_OFF) ||
 942                            (state == STATE_RADIO_RX_OFF_LINK));
 943         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 944 }
 945
 946 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
 947 {
 948         /*
 949          * Initialize all registers.
 950          */
 951         if (unlikely(rt2500usb_init_registers(rt2x00dev) ||
 952                      rt2500usb_init_bbp(rt2x00dev)))
 953                 return -EIO;
 954
 955         return 0;
 956 }
 957
 958 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
 959 {
 960         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
 961         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
 962
 963         /*
 964          * Disable synchronisation.
 965          */
 966         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
 967
 968         rt2x00usb_disable_radio(rt2x00dev);
 969 }
 970
 971 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
 972                                enum dev_state state)
 973 {
 974         u16 reg;
 975         u16 reg2;
 976         unsigned int i;
 977         char put_to_sleep;
 978         char bbp_state;
 979         char rf_state;
 980
 981         put_to_sleep = (state != STATE_AWAKE);
 982
 983         reg = 0;
 984         rt2x00_set_field16(&reg, MAC_CSR17_BBP_DESIRE_STATE, state);
 985         rt2x00_set_field16(&reg, MAC_CSR17_RF_DESIRE_STATE, state);
 986         rt2x00_set_field16(&reg, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
 987         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
 988         rt2x00_set_field16(&reg, MAC_CSR17_SET_STATE, 1);
 989         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
 990
 991         /*
 992          * Device is not guaranteed to be in the requested state yet.
 993          * We must wait until the register indicates that the
 994          * device has entered the correct state.
 995          */
 996         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 997                 rt2500usb_register_read(rt2x00dev, MAC_CSR17, &reg2);
 998                 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
 999                 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
1000                 if (bbp_state == state && rf_state == state)
1001                         return 0;
1002                 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1003                 msleep(30);
1004         }
1005
1006         return -EBUSY;
1007 }
1008
1009 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1010                                       enum dev_state state)
1011 {
1012         int retval = 0;
1013
1014         switch (state) {
1015         case STATE_RADIO_ON:
1016                 retval = rt2500usb_enable_radio(rt2x00dev);
1017                 break;
1018         case STATE_RADIO_OFF:
1019                 rt2500usb_disable_radio(rt2x00dev);
1020                 break;
1021         case STATE_RADIO_RX_ON:
1022         case STATE_RADIO_RX_ON_LINK:
1023         case STATE_RADIO_RX_OFF:
1024         case STATE_RADIO_RX_OFF_LINK:
1025                 rt2500usb_toggle_rx(rt2x00dev, state);
1026                 break;
1027         case STATE_RADIO_IRQ_ON:
1028         case STATE_RADIO_IRQ_ON_ISR:
1029         case STATE_RADIO_IRQ_OFF:
1030         case STATE_RADIO_IRQ_OFF_ISR:
1031                 /* No support, but no error either */
1032                 break;
1033         case STATE_DEEP_SLEEP:
1034         case STATE_SLEEP:
1035         case STATE_STANDBY:
1036         case STATE_AWAKE:
1037                 retval = rt2500usb_set_state(rt2x00dev, state);
1038                 break;
1039         default:
1040                 retval = -ENOTSUPP;
1041                 break;
1042         }
1043
1044         if (unlikely(retval))
1045                 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
1046                       state, retval);
1047
1048         return retval;
1049 }
1050
1051 /*
1052  * TX descriptor initialization
1053  */
1054 static void rt2500usb_write_tx_desc(struct queue_entry *entry,
1055                                     struct txentry_desc *txdesc)
1056 {
1057         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1058         __le32 *txd = (__le32 *) entry->skb->data;
1059         u32 word;
1060
1061         /*
1062          * Start writing the descriptor words.
1063          */
1064         rt2x00_desc_read(txd, 0, &word);
1065         rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, txdesc->retry_limit);
1066         rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1067                            test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1068         rt2x00_set_field32(&word, TXD_W0_ACK,
1069                            test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1070         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1071                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1072         rt2x00_set_field32(&word, TXD_W0_OFDM,
1073                            (txdesc->rate_mode == RATE_MODE_OFDM));
1074         rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1075                            test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
1076         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1077         rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, txdesc->length);
1078         rt2x00_set_field32(&word, TXD_W0_CIPHER, !!txdesc->cipher);
1079         rt2x00_set_field32(&word, TXD_W0_KEY_ID, txdesc->key_idx);
1080         rt2x00_desc_write(txd, 0, word);
1081
1082         rt2x00_desc_read(txd, 1, &word);
1083         rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, txdesc->iv_offset);
1084         rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1085         rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1086         rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1087         rt2x00_desc_write(txd, 1, word);
1088
1089         rt2x00_desc_read(txd, 2, &word);
1090         rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1091         rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1092         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1093         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1094         rt2x00_desc_write(txd, 2, word);
1095
1096         if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) {
1097                 _rt2x00_desc_write(txd, 3, skbdesc->iv[0]);
1098                 _rt2x00_desc_write(txd, 4, skbdesc->iv[1]);
1099         }
1100
1101         /*
1102          * Register descriptor details in skb frame descriptor.
1103          */
1104         skbdesc->flags |= SKBDESC_DESC_IN_SKB;
1105         skbdesc->desc = txd;
1106         skbdesc->desc_len = TXD_DESC_SIZE;
1107 }
1108
1109 /*
1110  * TX data initialization
1111  */
1112 static void rt2500usb_beacondone(struct urb *urb);
1113
1114 static void rt2500usb_write_beacon(struct queue_entry *entry,
1115                                    struct txentry_desc *txdesc)
1116 {
1117         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1118         struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
1119         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1120         int pipe = usb_sndbulkpipe(usb_dev, entry->queue->usb_endpoint);
1121         int length;
1122         u16 reg, reg0;
1123
1124         /*
1125          * Disable beaconing while we are reloading the beacon data,
1126          * otherwise we might be sending out invalid data.
1127          */
1128         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1129         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
1130         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1131
1132         /*
1133          * Add space for the descriptor in front of the skb.
1134          */
1135         skb_push(entry->skb, TXD_DESC_SIZE);
1136         memset(entry->skb->data, 0, TXD_DESC_SIZE);
1137
1138         /*
1139          * Write the TX descriptor for the beacon.
1140          */
1141         rt2500usb_write_tx_desc(entry, txdesc);
1142
1143         /*
1144          * Dump beacon to userspace through debugfs.
1145          */
1146         rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
1147
1148         /*
1149          * USB devices cannot blindly pass the skb->len as the
1150          * length of the data to usb_fill_bulk_urb. Pass the skb
1151          * to the driver to determine what the length should be.
1152          */
1153         length = rt2x00dev->ops->lib->get_tx_data_len(entry);
1154
1155         usb_fill_bulk_urb(bcn_priv->urb, usb_dev, pipe,
1156                           entry->skb->data, length, rt2500usb_beacondone,
1157                           entry);
1158
1159         /*
1160          * Second we need to create the guardian byte.
1161          * We only need a single byte, so lets recycle
1162          * the 'flags' field we are not using for beacons.
1163          */
1164         bcn_priv->guardian_data = 0;
1165         usb_fill_bulk_urb(bcn_priv->guardian_urb, usb_dev, pipe,
1166                           &bcn_priv->guardian_data, 1, rt2500usb_beacondone,
1167                           entry);
1168
1169         /*
1170          * Send out the guardian byte.
1171          */
1172         usb_submit_urb(bcn_priv->guardian_urb, GFP_ATOMIC);
1173
1174         /*
1175          * Enable beaconing again.
1176          */
1177         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
1178         rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
1179         reg0 = reg;
1180         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
1181         /*
1182          * Beacon generation will fail initially.
1183          * To prevent this we need to change the TXRX_CSR19
1184          * register several times (reg0 is the same as reg
1185          * except for TXRX_CSR19_BEACON_GEN, which is 0 in reg0
1186          * and 1 in reg).
1187          */
1188         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1189         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
1190         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1191         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
1192         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1193 }
1194
1195 static int rt2500usb_get_tx_data_len(struct queue_entry *entry)
1196 {
1197         int length;
1198
1199         /*
1200          * The length _must_ be a multiple of 2,
1201          * but it must _not_ be a multiple of the USB packet size.
1202          */
1203         length = roundup(entry->skb->len, 2);
1204         length += (2 * !(length % entry->queue->usb_maxpacket));
1205
1206         return length;
1207 }
1208
1209 static void rt2500usb_kill_tx_queue(struct data_queue *queue)
1210 {
1211         if (queue->qid == QID_BEACON)
1212                 rt2500usb_register_write(queue->rt2x00dev, TXRX_CSR19, 0);
1213
1214         rt2x00usb_kill_tx_queue(queue);
1215 }
1216
1217 /*
1218  * RX control handlers
1219  */
1220 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1221                                   struct rxdone_entry_desc *rxdesc)
1222 {
1223         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1224         struct queue_entry_priv_usb *entry_priv = entry->priv_data;
1225         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1226         __le32 *rxd =
1227             (__le32 *)(entry->skb->data +
1228                        (entry_priv->urb->actual_length -
1229                         entry->queue->desc_size));
1230         u32 word0;
1231         u32 word1;
1232
1233         /*
1234          * Copy descriptor to the skbdesc->desc buffer, making it safe from moving of
1235          * frame data in rt2x00usb.
1236          */
1237         memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
1238         rxd = (__le32 *)skbdesc->desc;
1239
1240         /*
1241          * It is now safe to read the descriptor on all architectures.
1242          */
1243         rt2x00_desc_read(rxd, 0, &word0);
1244         rt2x00_desc_read(rxd, 1, &word1);
1245
1246         if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1247                 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1248         if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1249                 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1250
1251         rxdesc->cipher = rt2x00_get_field32(word0, RXD_W0_CIPHER);
1252         if (rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
1253                 rxdesc->cipher_status = RX_CRYPTO_FAIL_KEY;
1254
1255         if (rxdesc->cipher != CIPHER_NONE) {
1256                 _rt2x00_desc_read(rxd, 2, &rxdesc->iv[0]);
1257                 _rt2x00_desc_read(rxd, 3, &rxdesc->iv[1]);
1258                 rxdesc->dev_flags |= RXDONE_CRYPTO_IV;
1259
1260                 /* ICV is located at the end of frame */
1261
1262                 rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
1263                 if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
1264                         rxdesc->flags |= RX_FLAG_DECRYPTED;
1265                 else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
1266                         rxdesc->flags |= RX_FLAG_MMIC_ERROR;
1267         }
1268
1269         /*
1270          * Obtain the status about this packet.
1271          * When frame was received with an OFDM bitrate,
1272          * the signal is the PLCP value. If it was received with
1273          * a CCK bitrate the signal is the rate in 100kbit/s.
1274          */
1275         rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1276         rxdesc->rssi =
1277             rt2x00_get_field32(word1, RXD_W1_RSSI) - rt2x00dev->rssi_offset;
1278         rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1279
1280         if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1281                 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1282         else
1283                 rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
1284         if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1285                 rxdesc->dev_flags |= RXDONE_MY_BSS;
1286
1287         /*
1288          * Adjust the skb memory window to the frame boundaries.
1289          */
1290         skb_trim(entry->skb, rxdesc->size);
1291 }
1292
1293 /*
1294  * Interrupt functions.
1295  */
1296 static void rt2500usb_beacondone(struct urb *urb)
1297 {
1298         struct queue_entry *entry = (struct queue_entry *)urb->context;
1299         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1300
1301         if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1302                 return;
1303
1304         /*
1305          * Check if this was the guardian beacon,
1306          * if that was the case we need to send the real beacon now.
1307          * Otherwise we should free the sk_buffer, the device
1308          * should be doing the rest of the work now.
1309          */
1310         if (bcn_priv->guardian_urb == urb) {
1311                 usb_submit_urb(bcn_priv->urb, GFP_ATOMIC);
1312         } else if (bcn_priv->urb == urb) {
1313                 dev_kfree_skb(entry->skb);
1314                 entry->skb = NULL;
1315         }
1316 }
1317
1318 /*
1319  * Device probe functions.
1320  */
1321 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1322 {
1323         u16 word;
1324         u8 *mac;
1325         u8 bbp;
1326
1327         rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1328
1329         /*
1330          * Start validation of the data that has been read.
1331          */
1332         mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1333         if (!is_valid_ether_addr(mac)) {
1334                 random_ether_addr(mac);
1335                 EEPROM(rt2x00dev, "MAC: %pM\n", mac);
1336         }
1337
1338         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1339         if (word == 0xffff) {
1340                 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1341                 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1342                                    ANTENNA_SW_DIVERSITY);
1343                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1344                                    ANTENNA_SW_DIVERSITY);
1345                 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1346                                    LED_MODE_DEFAULT);
1347                 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1348                 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1349                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1350                 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1351                 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1352         }
1353
1354         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1355         if (word == 0xffff) {
1356                 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1357                 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1358                 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1359                 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1360                 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1361         }
1362
1363         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1364         if (word == 0xffff) {
1365                 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1366                                    DEFAULT_RSSI_OFFSET);
1367                 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1368                 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1369         }
1370
1371         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1372         if (word == 0xffff) {
1373                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1374                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1375                 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1376         }
1377
1378         /*
1379          * Switch lower vgc bound to current BBP R17 value,
1380          * lower the value a bit for better quality.
1381          */
1382         rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1383         bbp -= 6;
1384
1385         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1386         if (word == 0xffff) {
1387                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1388                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1389                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1390                 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1391         } else {
1392                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1393                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1394         }
1395
1396         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1397         if (word == 0xffff) {
1398                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1399                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1400                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1401                 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1402         }
1403
1404         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1405         if (word == 0xffff) {
1406                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1407                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1408                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1409                 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1410         }
1411
1412         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1413         if (word == 0xffff) {
1414                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1415                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1416                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1417                 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1418         }
1419
1420         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1421         if (word == 0xffff) {
1422                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1423                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1424                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1425                 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1426         }
1427
1428         return 0;
1429 }
1430
1431 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1432 {
1433         u16 reg;
1434         u16 value;
1435         u16 eeprom;
1436
1437         /*
1438          * Read EEPROM word for configuration.
1439          */
1440         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1441
1442         /*
1443          * Identify RF chipset.
1444          */
1445         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1446         rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1447         rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1448
1449         if (((reg & 0xfff0) != 0) || ((reg & 0x0000000f) == 0)) {
1450                 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1451                 return -ENODEV;
1452         }
1453
1454         if (!rt2x00_rf(rt2x00dev, RF2522) &&
1455             !rt2x00_rf(rt2x00dev, RF2523) &&
1456             !rt2x00_rf(rt2x00dev, RF2524) &&
1457             !rt2x00_rf(rt2x00dev, RF2525) &&
1458             !rt2x00_rf(rt2x00dev, RF2525E) &&
1459             !rt2x00_rf(rt2x00dev, RF5222)) {
1460                 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1461                 return -ENODEV;
1462         }
1463
1464         /*
1465          * Identify default antenna configuration.
1466          */
1467         rt2x00dev->default_ant.tx =
1468             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1469         rt2x00dev->default_ant.rx =
1470             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1471
1472         /*
1473          * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1474          * I am not 100% sure about this, but the legacy drivers do not
1475          * indicate antenna swapping in software is required when
1476          * diversity is enabled.
1477          */
1478         if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1479                 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1480         if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1481                 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1482
1483         /*
1484          * Store led mode, for correct led behaviour.
1485          */
1486 #ifdef CONFIG_RT2X00_LIB_LEDS
1487         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1488
1489         rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
1490         if (value == LED_MODE_TXRX_ACTIVITY ||
1491             value == LED_MODE_DEFAULT ||
1492             value == LED_MODE_ASUS)
1493                 rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
1494                                    LED_TYPE_ACTIVITY);
1495 #endif /* CONFIG_RT2X00_LIB_LEDS */
1496
1497         /*
1498          * Detect if this device has an hardware controlled radio.
1499          */
1500         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
1501                 __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
1502
1503         /*
1504          * Read the RSSI <-> dBm offset information.
1505          */
1506         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1507         rt2x00dev->rssi_offset =
1508             rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1509
1510         return 0;
1511 }
1512
1513 /*
1514  * RF value list for RF2522
1515  * Supports: 2.4 GHz
1516  */
1517 static const struct rf_channel rf_vals_bg_2522[] = {
1518         { 1,  0x00002050, 0x000c1fda, 0x00000101, 0 },
1519         { 2,  0x00002050, 0x000c1fee, 0x00000101, 0 },
1520         { 3,  0x00002050, 0x000c2002, 0x00000101, 0 },
1521         { 4,  0x00002050, 0x000c2016, 0x00000101, 0 },
1522         { 5,  0x00002050, 0x000c202a, 0x00000101, 0 },
1523         { 6,  0x00002050, 0x000c203e, 0x00000101, 0 },
1524         { 7,  0x00002050, 0x000c2052, 0x00000101, 0 },
1525         { 8,  0x00002050, 0x000c2066, 0x00000101, 0 },
1526         { 9,  0x00002050, 0x000c207a, 0x00000101, 0 },
1527         { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1528         { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1529         { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1530         { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1531         { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1532 };
1533
1534 /*
1535  * RF value list for RF2523
1536  * Supports: 2.4 GHz
1537  */
1538 static const struct rf_channel rf_vals_bg_2523[] = {
1539         { 1,  0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1540         { 2,  0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1541         { 3,  0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1542         { 4,  0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1543         { 5,  0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1544         { 6,  0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1545         { 7,  0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1546         { 8,  0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1547         { 9,  0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1548         { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1549         { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1550         { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1551         { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1552         { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1553 };
1554
1555 /*
1556  * RF value list for RF2524
1557  * Supports: 2.4 GHz
1558  */
1559 static const struct rf_channel rf_vals_bg_2524[] = {
1560         { 1,  0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1561         { 2,  0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1562         { 3,  0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1563         { 4,  0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1564         { 5,  0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1565         { 6,  0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1566         { 7,  0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1567         { 8,  0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1568         { 9,  0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1569         { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1570         { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1571         { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1572         { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1573         { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1574 };
1575
1576 /*
1577  * RF value list for RF2525
1578  * Supports: 2.4 GHz
1579  */
1580 static const struct rf_channel rf_vals_bg_2525[] = {
1581         { 1,  0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1582         { 2,  0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1583         { 3,  0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1584         { 4,  0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1585         { 5,  0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1586         { 6,  0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1587         { 7,  0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1588         { 8,  0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1589         { 9,  0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1590         { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1591         { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1592         { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1593         { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1594         { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1595 };
1596
1597 /*
1598  * RF value list for RF2525e
1599  * Supports: 2.4 GHz
1600  */
1601 static const struct rf_channel rf_vals_bg_2525e[] = {
1602         { 1,  0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1603         { 2,  0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1604         { 3,  0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1605         { 4,  0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1606         { 5,  0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1607         { 6,  0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1608         { 7,  0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1609         { 8,  0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1610         { 9,  0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1611         { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1612         { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1613         { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1614         { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1615         { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1616 };
1617
1618 /*
1619  * RF value list for RF5222
1620  * Supports: 2.4 GHz & 5.2 GHz
1621  */
1622 static const struct rf_channel rf_vals_5222[] = {
1623         { 1,  0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1624         { 2,  0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1625         { 3,  0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1626         { 4,  0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1627         { 5,  0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1628         { 6,  0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1629         { 7,  0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1630         { 8,  0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1631         { 9,  0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1632         { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1633         { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1634         { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1635         { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1636         { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1637
1638         /* 802.11 UNI / HyperLan 2 */
1639         { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1640         { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1641         { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1642         { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1643         { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1644         { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1645         { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1646         { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1647
1648         /* 802.11 HyperLan 2 */
1649         { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1650         { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1651         { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1652         { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1653         { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1654         { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1655         { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1656         { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1657         { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1658         { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1659
1660         /* 802.11 UNII */
1661         { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1662         { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1663         { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1664         { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1665         { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1666 };
1667
1668 static int rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1669 {
1670         struct hw_mode_spec *spec = &rt2x00dev->spec;
1671         struct channel_info *info;
1672         char *tx_power;
1673         unsigned int i;
1674
1675         /*
1676          * Initialize all hw fields.
1677          */
1678         rt2x00dev->hw->flags =
1679             IEEE80211_HW_RX_INCLUDES_FCS |
1680             IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1681             IEEE80211_HW_SIGNAL_DBM |
1682             IEEE80211_HW_SUPPORTS_PS |
1683             IEEE80211_HW_PS_NULLFUNC_STACK;
1684
1685         SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
1686         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1687                                 rt2x00_eeprom_addr(rt2x00dev,
1688                                                    EEPROM_MAC_ADDR_0));
1689
1690         /*
1691          * Initialize hw_mode information.
1692          */
1693         spec->supported_bands = SUPPORT_BAND_2GHZ;
1694         spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1695
1696         if (rt2x00_rf(rt2x00dev, RF2522)) {
1697                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1698                 spec->channels = rf_vals_bg_2522;
1699         } else if (rt2x00_rf(rt2x00dev, RF2523)) {
1700                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1701                 spec->channels = rf_vals_bg_2523;
1702         } else if (rt2x00_rf(rt2x00dev, RF2524)) {
1703                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1704                 spec->channels = rf_vals_bg_2524;
1705         } else if (rt2x00_rf(rt2x00dev, RF2525)) {
1706                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1707                 spec->channels = rf_vals_bg_2525;
1708         } else if (rt2x00_rf(rt2x00dev, RF2525E)) {
1709                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1710                 spec->channels = rf_vals_bg_2525e;
1711         } else if (rt2x00_rf(rt2x00dev, RF5222)) {
1712                 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1713                 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1714                 spec->channels = rf_vals_5222;
1715         }
1716
1717         /*
1718          * Create channel information array
1719          */
1720         info = kcalloc(spec->num_channels, sizeof(*info), GFP_KERNEL);
1721         if (!info)
1722                 return -ENOMEM;
1723
1724         spec->channels_info = info;
1725
1726         tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1727         for (i = 0; i < 14; i++) {
1728                 info[i].max_power = MAX_TXPOWER;
1729                 info[i].default_power1 = TXPOWER_FROM_DEV(tx_power[i]);
1730         }
1731
1732         if (spec->num_channels > 14) {
1733                 for (i = 14; i < spec->num_channels; i++) {
1734                         info[i].max_power = MAX_TXPOWER;
1735                         info[i].default_power1 = DEFAULT_TXPOWER;
1736                 }
1737         }
1738
1739         return 0;
1740 }
1741
1742 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1743 {
1744         int retval;
1745
1746         /*
1747          * Allocate eeprom data.
1748          */
1749         retval = rt2500usb_validate_eeprom(rt2x00dev);
1750         if (retval)
1751                 return retval;
1752
1753         retval = rt2500usb_init_eeprom(rt2x00dev);
1754         if (retval)
1755                 return retval;
1756
1757         /*
1758          * Initialize hw specifications.
1759          */
1760         retval = rt2500usb_probe_hw_mode(rt2x00dev);
1761         if (retval)
1762                 return retval;
1763
1764         /*
1765          * This device requires the atim queue
1766          */
1767         __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1768         __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1769         if (!modparam_nohwcrypt) {
1770                 __set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
1771                 __set_bit(DRIVER_REQUIRE_COPY_IV, &rt2x00dev->flags);
1772         }
1773         __set_bit(DRIVER_SUPPORT_WATCHDOG, &rt2x00dev->flags);
1774
1775         /*
1776          * Set the rssi offset.
1777          */
1778         rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1779
1780         return 0;
1781 }
1782
1783 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1784         .tx                     = rt2x00mac_tx,
1785         .start                  = rt2x00mac_start,
1786         .stop                   = rt2x00mac_stop,
1787         .add_interface          = rt2x00mac_add_interface,
1788         .remove_interface       = rt2x00mac_remove_interface,
1789         .config                 = rt2x00mac_config,
1790         .configure_filter       = rt2x00mac_configure_filter,
1791         .set_tim                = rt2x00mac_set_tim,
1792         .set_key                = rt2x00mac_set_key,
1793         .sw_scan_start          = rt2x00mac_sw_scan_start,
1794         .sw_scan_complete       = rt2x00mac_sw_scan_complete,
1795         .get_stats              = rt2x00mac_get_stats,
1796         .bss_info_changed       = rt2x00mac_bss_info_changed,
1797         .conf_tx                = rt2x00mac_conf_tx,
1798         .rfkill_poll            = rt2x00mac_rfkill_poll,
1799 };
1800
1801 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1802         .probe_hw               = rt2500usb_probe_hw,
1803         .initialize             = rt2x00usb_initialize,
1804         .uninitialize           = rt2x00usb_uninitialize,
1805         .clear_entry            = rt2x00usb_clear_entry,
1806         .set_device_state       = rt2500usb_set_device_state,
1807         .rfkill_poll            = rt2500usb_rfkill_poll,
1808         .link_stats             = rt2500usb_link_stats,
1809         .reset_tuner            = rt2500usb_reset_tuner,
1810         .watchdog               = rt2x00usb_watchdog,
1811         .write_tx_desc          = rt2500usb_write_tx_desc,
1812         .write_beacon           = rt2500usb_write_beacon,
1813         .get_tx_data_len        = rt2500usb_get_tx_data_len,
1814         .kick_tx_queue          = rt2x00usb_kick_tx_queue,
1815         .kill_tx_queue          = rt2500usb_kill_tx_queue,
1816         .fill_rxdone            = rt2500usb_fill_rxdone,
1817         .config_shared_key      = rt2500usb_config_key,
1818         .config_pairwise_key    = rt2500usb_config_key,
1819         .config_filter          = rt2500usb_config_filter,
1820         .config_intf            = rt2500usb_config_intf,
1821         .config_erp             = rt2500usb_config_erp,
1822         .config_ant             = rt2500usb_config_ant,
1823         .config                 = rt2500usb_config,
1824 };
1825
1826 static const struct data_queue_desc rt2500usb_queue_rx = {
1827         .entry_num              = RX_ENTRIES,
1828         .data_size              = DATA_FRAME_SIZE,
1829         .desc_size              = RXD_DESC_SIZE,
1830         .priv_size              = sizeof(struct queue_entry_priv_usb),
1831 };
1832
1833 static const struct data_queue_desc rt2500usb_queue_tx = {
1834         .entry_num              = TX_ENTRIES,
1835         .data_size              = DATA_FRAME_SIZE,
1836         .desc_size              = TXD_DESC_SIZE,
1837         .priv_size              = sizeof(struct queue_entry_priv_usb),
1838 };
1839
1840 static const struct data_queue_desc rt2500usb_queue_bcn = {
1841         .entry_num              = BEACON_ENTRIES,
1842         .data_size              = MGMT_FRAME_SIZE,
1843         .desc_size              = TXD_DESC_SIZE,
1844         .priv_size              = sizeof(struct queue_entry_priv_usb_bcn),
1845 };
1846
1847 static const struct data_queue_desc rt2500usb_queue_atim = {
1848         .entry_num              = ATIM_ENTRIES,
1849         .data_size              = DATA_FRAME_SIZE,
1850         .desc_size              = TXD_DESC_SIZE,
1851         .priv_size              = sizeof(struct queue_entry_priv_usb),
1852 };
1853
1854 static const struct rt2x00_ops rt2500usb_ops = {
1855         .name                   = KBUILD_MODNAME,
1856         .max_sta_intf           = 1,
1857         .max_ap_intf            = 1,
1858         .eeprom_size            = EEPROM_SIZE,
1859         .rf_size                = RF_SIZE,
1860         .tx_queues              = NUM_TX_QUEUES,
1861         .extra_tx_headroom      = TXD_DESC_SIZE,
1862         .rx                     = &rt2500usb_queue_rx,
1863         .tx                     = &rt2500usb_queue_tx,
1864         .bcn                    = &rt2500usb_queue_bcn,
1865         .atim                   = &rt2500usb_queue_atim,
1866         .lib                    = &rt2500usb_rt2x00_ops,
1867         .hw                     = &rt2500usb_mac80211_ops,
1868 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1869         .debugfs                = &rt2500usb_rt2x00debug,
1870 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1871 };
1872
1873 /*
1874  * rt2500usb module information.
1875  */
1876 static struct usb_device_id rt2500usb_device_table[] = {
1877         /* ASUS */
1878         { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1879         { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1880         /* Belkin */
1881         { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1882         { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1883         { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1884         /* Cisco Systems */
1885         { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1886         { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1887         { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1888         /* CNet */
1889         { USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt2500usb_ops) },
1890         /* Conceptronic */
1891         { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1892         /* D-LINK */
1893         { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1894         /* Gigabyte */
1895         { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1896         { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1897         /* Hercules */
1898         { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1899         /* Melco */
1900         { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
1901         { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1902         { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1903         { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1904         { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1905         /* MSI */
1906         { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1907         { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1908         { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1909         /* Ralink */
1910         { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1911         { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1912         { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1913         { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1914         /* Sagem */
1915         { USB_DEVICE(0x079b, 0x004b), USB_DEVICE_DATA(&rt2500usb_ops) },
1916         /* Siemens */
1917         { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1918         /* SMC */
1919         { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1920         /* Spairon */
1921         { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1922         /* SURECOM */
1923         { USB_DEVICE(0x0769, 0x11f3), USB_DEVICE_DATA(&rt2500usb_ops) },
1924         /* Trust */
1925         { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1926         /* VTech */
1927         { USB_DEVICE(0x0f88, 0x3012), USB_DEVICE_DATA(&rt2500usb_ops) },
1928         /* Zinwell */
1929         { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1930         { 0, }
1931 };
1932
1933 MODULE_AUTHOR(DRV_PROJECT);
1934 MODULE_VERSION(DRV_VERSION);
1935 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1936 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1937 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1938 MODULE_LICENSE("GPL");
1939
1940 static struct usb_driver rt2500usb_driver = {
1941         .name           = KBUILD_MODNAME,
1942         .id_table       = rt2500usb_device_table,
1943         .probe          = rt2x00usb_probe,
1944         .disconnect     = rt2x00usb_disconnect,
1945         .suspend        = rt2x00usb_suspend,
1946         .resume         = rt2x00usb_resume,
1947 };
1948
1949 static int __init rt2500usb_init(void)
1950 {
1951         return usb_register(&rt2500usb_driver);
1952 }
1953
1954 static void __exit rt2500usb_exit(void)
1955 {
1956         usb_deregister(&rt2500usb_driver);
1957 }
1958
1959 module_init(rt2500usb_init);
1960 module_exit(rt2500usb_exit);