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;
  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  * Queue handlers.
 743  */
 744 static void rt2500usb_start_queue(struct data_queue *queue)
 745 {
 746         struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
 747         u16 reg;
 748
 749         switch (queue->qid) {
 750         case QID_RX:
 751                 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 752                 rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 0);
 753                 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 754                 break;
 755         case QID_BEACON:
 756                 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 757                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
 758                 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
 759                 rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
 760                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 761                 break;
 762         default:
 763                 break;
 764         }
 765 }
 766
 767 static void rt2500usb_stop_queue(struct data_queue *queue)
 768 {
 769         struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
 770         u16 reg;
 771
 772         switch (queue->qid) {
 773         case QID_RX:
 774                 rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 775                 rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
 776                 rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 777                 break;
 778         case QID_BEACON:
 779                 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 780                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 0);
 781                 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 0);
 782                 rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
 783                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 784                 break;
 785         default:
 786                 break;
 787         }
 788 }
 789
 790 /*
 791  * Initialization functions.
 792  */
 793 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
 794 {
 795         u16 reg;
 796
 797         rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
 798                                     USB_MODE_TEST, REGISTER_TIMEOUT);
 799         rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
 800                                     0x00f0, REGISTER_TIMEOUT);
 801
 802         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 803         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
 804         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 805
 806         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
 807         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
 808
 809         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 810         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 1);
 811         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 1);
 812         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 813         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 814
 815         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 816         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 817         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 818         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 819         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 820
 821         rt2500usb_register_read(rt2x00dev, TXRX_CSR5, &reg);
 822         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0, 13);
 823         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0_VALID, 1);
 824         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1, 12);
 825         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1_VALID, 1);
 826         rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
 827
 828         rt2500usb_register_read(rt2x00dev, TXRX_CSR6, &reg);
 829         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0, 10);
 830         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0_VALID, 1);
 831         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1, 11);
 832         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1_VALID, 1);
 833         rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
 834
 835         rt2500usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
 836         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0, 7);
 837         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0_VALID, 1);
 838         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1, 6);
 839         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1_VALID, 1);
 840         rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
 841
 842         rt2500usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
 843         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0, 5);
 844         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0_VALID, 1);
 845         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1, 0);
 846         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1_VALID, 0);
 847         rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
 848
 849         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 850         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 0);
 851         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 0);
 852         rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 0);
 853         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
 854         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 855
 856         rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
 857         rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
 858
 859         if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
 860                 return -EBUSY;
 861
 862         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 863         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 864         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 865         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 1);
 866         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 867
 868         if (rt2x00_rev(rt2x00dev) >= RT2570_VERSION_C) {
 869                 rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
 870                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 0);
 871         } else {
 872                 reg = 0;
 873                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 1);
 874                 rt2x00_set_field16(&reg, PHY_CSR2_LNA_MODE, 3);
 875         }
 876         rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
 877
 878         rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
 879         rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
 880         rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
 881         rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
 882
 883         rt2500usb_register_read(rt2x00dev, MAC_CSR8, &reg);
 884         rt2x00_set_field16(&reg, MAC_CSR8_MAX_FRAME_UNIT,
 885                            rt2x00dev->rx->data_size);
 886         rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
 887
 888         rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 889         rt2x00_set_field16(&reg, TXRX_CSR0_ALGORITHM, CIPHER_NONE);
 890         rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
 891         rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0);
 892         rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 893
 894         rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 895         rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON, 90);
 896         rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 897
 898         rt2500usb_register_read(rt2x00dev, PHY_CSR4, &reg);
 899         rt2x00_set_field16(&reg, PHY_CSR4_LOW_RF_LE, 1);
 900         rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
 901
 902         rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
 903         rt2x00_set_field16(&reg, TXRX_CSR1_AUTO_SEQUENCE, 1);
 904         rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
 905
 906         return 0;
 907 }
 908
 909 static int rt2500usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
 910 {
 911         unsigned int i;
 912         u8 value;
 913
 914         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 915                 rt2500usb_bbp_read(rt2x00dev, 0, &value);
 916                 if ((value != 0xff) && (value != 0x00))
 917                         return 0;
 918                 udelay(REGISTER_BUSY_DELAY);
 919         }
 920
 921         ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
 922         return -EACCES;
 923 }
 924
 925 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
 926 {
 927         unsigned int i;
 928         u16 eeprom;
 929         u8 value;
 930         u8 reg_id;
 931
 932         if (unlikely(rt2500usb_wait_bbp_ready(rt2x00dev)))
 933                 return -EACCES;
 934
 935         rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
 936         rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
 937         rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
 938         rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
 939         rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
 940         rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
 941         rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
 942         rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
 943         rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
 944         rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
 945         rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
 946         rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
 947         rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
 948         rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
 949         rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
 950         rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
 951         rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
 952         rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
 953         rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
 954         rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
 955         rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
 956         rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
 957         rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
 958         rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
 959         rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
 960         rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
 961         rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
 962         rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
 963         rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
 964         rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
 965         rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
 966
 967         for (i = 0; i < EEPROM_BBP_SIZE; i++) {
 968                 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
 969
 970                 if (eeprom != 0xffff && eeprom != 0x0000) {
 971                         reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
 972                         value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
 973                         rt2500usb_bbp_write(rt2x00dev, reg_id, value);
 974                 }
 975         }
 976
 977         return 0;
 978 }
 979
 980 /*
 981  * Device state switch handlers.
 982  */
 983 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
 984 {
 985         /*
 986          * Initialize all registers.
 987          */
 988         if (unlikely(rt2500usb_init_registers(rt2x00dev) ||
 989                      rt2500usb_init_bbp(rt2x00dev)))
 990                 return -EIO;
 991
 992         return 0;
 993 }
 994
 995 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
 996 {
 997         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
 998         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
 999
1000         /*
1001          * Disable synchronisation.
1002          */
1003         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1004
1005         rt2x00usb_disable_radio(rt2x00dev);
1006 }
1007
1008 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
1009                                enum dev_state state)
1010 {
1011         u16 reg;
1012         u16 reg2;
1013         unsigned int i;
1014         char put_to_sleep;
1015         char bbp_state;
1016         char rf_state;
1017
1018         put_to_sleep = (state != STATE_AWAKE);
1019
1020         reg = 0;
1021         rt2x00_set_field16(&reg, MAC_CSR17_BBP_DESIRE_STATE, state);
1022         rt2x00_set_field16(&reg, MAC_CSR17_RF_DESIRE_STATE, state);
1023         rt2x00_set_field16(&reg, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
1024         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1025         rt2x00_set_field16(&reg, MAC_CSR17_SET_STATE, 1);
1026         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1027
1028         /*
1029          * Device is not guaranteed to be in the requested state yet.
1030          * We must wait until the register indicates that the
1031          * device has entered the correct state.
1032          */
1033         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1034                 rt2500usb_register_read(rt2x00dev, MAC_CSR17, &reg2);
1035                 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
1036                 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
1037                 if (bbp_state == state && rf_state == state)
1038                         return 0;
1039                 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1040                 msleep(30);
1041         }
1042
1043         return -EBUSY;
1044 }
1045
1046 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1047                                       enum dev_state state)
1048 {
1049         int retval = 0;
1050
1051         switch (state) {
1052         case STATE_RADIO_ON:
1053                 retval = rt2500usb_enable_radio(rt2x00dev);
1054                 break;
1055         case STATE_RADIO_OFF:
1056                 rt2500usb_disable_radio(rt2x00dev);
1057                 break;
1058         case STATE_RADIO_IRQ_ON:
1059         case STATE_RADIO_IRQ_ON_ISR:
1060         case STATE_RADIO_IRQ_OFF:
1061         case STATE_RADIO_IRQ_OFF_ISR:
1062                 /* No support, but no error either */
1063                 break;
1064         case STATE_DEEP_SLEEP:
1065         case STATE_SLEEP:
1066         case STATE_STANDBY:
1067         case STATE_AWAKE:
1068                 retval = rt2500usb_set_state(rt2x00dev, state);
1069                 break;
1070         default:
1071                 retval = -ENOTSUPP;
1072                 break;
1073         }
1074
1075         if (unlikely(retval))
1076                 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
1077                       state, retval);
1078
1079         return retval;
1080 }
1081
1082 /*
1083  * TX descriptor initialization
1084  */
1085 static void rt2500usb_write_tx_desc(struct queue_entry *entry,
1086                                     struct txentry_desc *txdesc)
1087 {
1088         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1089         __le32 *txd = (__le32 *) entry->skb->data;
1090         u32 word;
1091
1092         /*
1093          * Start writing the descriptor words.
1094          */
1095         rt2x00_desc_read(txd, 0, &word);
1096         rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, txdesc->retry_limit);
1097         rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1098                            test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1099         rt2x00_set_field32(&word, TXD_W0_ACK,
1100                            test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1101         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1102                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1103         rt2x00_set_field32(&word, TXD_W0_OFDM,
1104                            (txdesc->rate_mode == RATE_MODE_OFDM));
1105         rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1106                            test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
1107         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1108         rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, txdesc->length);
1109         rt2x00_set_field32(&word, TXD_W0_CIPHER, !!txdesc->cipher);
1110         rt2x00_set_field32(&word, TXD_W0_KEY_ID, txdesc->key_idx);
1111         rt2x00_desc_write(txd, 0, word);
1112
1113         rt2x00_desc_read(txd, 1, &word);
1114         rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, txdesc->iv_offset);
1115         rt2x00_set_field32(&word, TXD_W1_AIFS, entry->queue->aifs);
1116         rt2x00_set_field32(&word, TXD_W1_CWMIN, entry->queue->cw_min);
1117         rt2x00_set_field32(&word, TXD_W1_CWMAX, entry->queue->cw_max);
1118         rt2x00_desc_write(txd, 1, word);
1119
1120         rt2x00_desc_read(txd, 2, &word);
1121         rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1122         rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1123         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1124         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1125         rt2x00_desc_write(txd, 2, word);
1126
1127         if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) {
1128                 _rt2x00_desc_write(txd, 3, skbdesc->iv[0]);
1129                 _rt2x00_desc_write(txd, 4, skbdesc->iv[1]);
1130         }
1131
1132         /*
1133          * Register descriptor details in skb frame descriptor.
1134          */
1135         skbdesc->flags |= SKBDESC_DESC_IN_SKB;
1136         skbdesc->desc = txd;
1137         skbdesc->desc_len = TXD_DESC_SIZE;
1138 }
1139
1140 /*
1141  * TX data initialization
1142  */
1143 static void rt2500usb_beacondone(struct urb *urb);
1144
1145 static void rt2500usb_write_beacon(struct queue_entry *entry,
1146                                    struct txentry_desc *txdesc)
1147 {
1148         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1149         struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
1150         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1151         int pipe = usb_sndbulkpipe(usb_dev, entry->queue->usb_endpoint);
1152         int length;
1153         u16 reg, reg0;
1154
1155         /*
1156          * Disable beaconing while we are reloading the beacon data,
1157          * otherwise we might be sending out invalid data.
1158          */
1159         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1160         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
1161         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1162
1163         /*
1164          * Add space for the descriptor in front of the skb.
1165          */
1166         skb_push(entry->skb, TXD_DESC_SIZE);
1167         memset(entry->skb->data, 0, TXD_DESC_SIZE);
1168
1169         /*
1170          * Write the TX descriptor for the beacon.
1171          */
1172         rt2500usb_write_tx_desc(entry, txdesc);
1173
1174         /*
1175          * Dump beacon to userspace through debugfs.
1176          */
1177         rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
1178
1179         /*
1180          * USB devices cannot blindly pass the skb->len as the
1181          * length of the data to usb_fill_bulk_urb. Pass the skb
1182          * to the driver to determine what the length should be.
1183          */
1184         length = rt2x00dev->ops->lib->get_tx_data_len(entry);
1185
1186         usb_fill_bulk_urb(bcn_priv->urb, usb_dev, pipe,
1187                           entry->skb->data, length, rt2500usb_beacondone,
1188                           entry);
1189
1190         /*
1191          * Second we need to create the guardian byte.
1192          * We only need a single byte, so lets recycle
1193          * the 'flags' field we are not using for beacons.
1194          */
1195         bcn_priv->guardian_data = 0;
1196         usb_fill_bulk_urb(bcn_priv->guardian_urb, usb_dev, pipe,
1197                           &bcn_priv->guardian_data, 1, rt2500usb_beacondone,
1198                           entry);
1199
1200         /*
1201          * Send out the guardian byte.
1202          */
1203         usb_submit_urb(bcn_priv->guardian_urb, GFP_ATOMIC);
1204
1205         /*
1206          * Enable beaconing again.
1207          */
1208         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
1209         rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
1210         reg0 = reg;
1211         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
1212         /*
1213          * Beacon generation will fail initially.
1214          * To prevent this we need to change the TXRX_CSR19
1215          * register several times (reg0 is the same as reg
1216          * except for TXRX_CSR19_BEACON_GEN, which is 0 in reg0
1217          * and 1 in reg).
1218          */
1219         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1220         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
1221         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1222         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
1223         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1224 }
1225
1226 static int rt2500usb_get_tx_data_len(struct queue_entry *entry)
1227 {
1228         int length;
1229
1230         /*
1231          * The length _must_ be a multiple of 2,
1232          * but it must _not_ be a multiple of the USB packet size.
1233          */
1234         length = roundup(entry->skb->len, 2);
1235         length += (2 * !(length % entry->queue->usb_maxpacket));
1236
1237         return length;
1238 }
1239
1240 /*
1241  * RX control handlers
1242  */
1243 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1244                                   struct rxdone_entry_desc *rxdesc)
1245 {
1246         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1247         struct queue_entry_priv_usb *entry_priv = entry->priv_data;
1248         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1249         __le32 *rxd =
1250             (__le32 *)(entry->skb->data +
1251                        (entry_priv->urb->actual_length -
1252                         entry->queue->desc_size));
1253         u32 word0;
1254         u32 word1;
1255
1256         /*
1257          * Copy descriptor to the skbdesc->desc buffer, making it safe from moving of
1258          * frame data in rt2x00usb.
1259          */
1260         memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
1261         rxd = (__le32 *)skbdesc->desc;
1262
1263         /*
1264          * It is now safe to read the descriptor on all architectures.
1265          */
1266         rt2x00_desc_read(rxd, 0, &word0);
1267         rt2x00_desc_read(rxd, 1, &word1);
1268
1269         if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1270                 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1271         if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1272                 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1273
1274         rxdesc->cipher = rt2x00_get_field32(word0, RXD_W0_CIPHER);
1275         if (rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
1276                 rxdesc->cipher_status = RX_CRYPTO_FAIL_KEY;
1277
1278         if (rxdesc->cipher != CIPHER_NONE) {
1279                 _rt2x00_desc_read(rxd, 2, &rxdesc->iv[0]);
1280                 _rt2x00_desc_read(rxd, 3, &rxdesc->iv[1]);
1281                 rxdesc->dev_flags |= RXDONE_CRYPTO_IV;
1282
1283                 /* ICV is located at the end of frame */
1284
1285                 rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
1286                 if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
1287                         rxdesc->flags |= RX_FLAG_DECRYPTED;
1288                 else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
1289                         rxdesc->flags |= RX_FLAG_MMIC_ERROR;
1290         }
1291
1292         /*
1293          * Obtain the status about this packet.
1294          * When frame was received with an OFDM bitrate,
1295          * the signal is the PLCP value. If it was received with
1296          * a CCK bitrate the signal is the rate in 100kbit/s.
1297          */
1298         rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1299         rxdesc->rssi =
1300             rt2x00_get_field32(word1, RXD_W1_RSSI) - rt2x00dev->rssi_offset;
1301         rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1302
1303         if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1304                 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1305         else
1306                 rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
1307         if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1308                 rxdesc->dev_flags |= RXDONE_MY_BSS;
1309
1310         /*
1311          * Adjust the skb memory window to the frame boundaries.
1312          */
1313         skb_trim(entry->skb, rxdesc->size);
1314 }
1315
1316 /*
1317  * Interrupt functions.
1318  */
1319 static void rt2500usb_beacondone(struct urb *urb)
1320 {
1321         struct queue_entry *entry = (struct queue_entry *)urb->context;
1322         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1323
1324         if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1325                 return;
1326
1327         /*
1328          * Check if this was the guardian beacon,
1329          * if that was the case we need to send the real beacon now.
1330          * Otherwise we should free the sk_buffer, the device
1331          * should be doing the rest of the work now.
1332          */
1333         if (bcn_priv->guardian_urb == urb) {
1334                 usb_submit_urb(bcn_priv->urb, GFP_ATOMIC);
1335         } else if (bcn_priv->urb == urb) {
1336                 dev_kfree_skb(entry->skb);
1337                 entry->skb = NULL;
1338         }
1339 }
1340
1341 /*
1342  * Device probe functions.
1343  */
1344 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1345 {
1346         u16 word;
1347         u8 *mac;
1348         u8 bbp;
1349
1350         rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1351
1352         /*
1353          * Start validation of the data that has been read.
1354          */
1355         mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1356         if (!is_valid_ether_addr(mac)) {
1357                 random_ether_addr(mac);
1358                 EEPROM(rt2x00dev, "MAC: %pM\n", mac);
1359         }
1360
1361         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1362         if (word == 0xffff) {
1363                 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1364                 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1365                                    ANTENNA_SW_DIVERSITY);
1366                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1367                                    ANTENNA_SW_DIVERSITY);
1368                 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1369                                    LED_MODE_DEFAULT);
1370                 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1371                 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1372                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1373                 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1374                 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1375         }
1376
1377         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1378         if (word == 0xffff) {
1379                 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1380                 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1381                 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1382                 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1383                 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1384         }
1385
1386         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1387         if (word == 0xffff) {
1388                 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1389                                    DEFAULT_RSSI_OFFSET);
1390                 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1391                 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1392         }
1393
1394         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1395         if (word == 0xffff) {
1396                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1397                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1398                 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1399         }
1400
1401         /*
1402          * Switch lower vgc bound to current BBP R17 value,
1403          * lower the value a bit for better quality.
1404          */
1405         rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1406         bbp -= 6;
1407
1408         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1409         if (word == 0xffff) {
1410                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1411                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1412                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1413                 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1414         } else {
1415                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1416                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1417         }
1418
1419         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1420         if (word == 0xffff) {
1421                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1422                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1423                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1424                 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1425         }
1426
1427         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1428         if (word == 0xffff) {
1429                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1430                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1431                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1432                 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1433         }
1434
1435         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1436         if (word == 0xffff) {
1437                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1438                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1439                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1440                 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1441         }
1442
1443         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1444         if (word == 0xffff) {
1445                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1446                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1447                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1448                 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1449         }
1450
1451         return 0;
1452 }
1453
1454 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1455 {
1456         u16 reg;
1457         u16 value;
1458         u16 eeprom;
1459
1460         /*
1461          * Read EEPROM word for configuration.
1462          */
1463         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1464
1465         /*
1466          * Identify RF chipset.
1467          */
1468         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1469         rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1470         rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1471
1472         if (((reg & 0xfff0) != 0) || ((reg & 0x0000000f) == 0)) {
1473                 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1474                 return -ENODEV;
1475         }
1476
1477         if (!rt2x00_rf(rt2x00dev, RF2522) &&
1478             !rt2x00_rf(rt2x00dev, RF2523) &&
1479             !rt2x00_rf(rt2x00dev, RF2524) &&
1480             !rt2x00_rf(rt2x00dev, RF2525) &&
1481             !rt2x00_rf(rt2x00dev, RF2525E) &&
1482             !rt2x00_rf(rt2x00dev, RF5222)) {
1483                 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1484                 return -ENODEV;
1485         }
1486
1487         /*
1488          * Identify default antenna configuration.
1489          */
1490         rt2x00dev->default_ant.tx =
1491             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1492         rt2x00dev->default_ant.rx =
1493             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1494
1495         /*
1496          * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1497          * I am not 100% sure about this, but the legacy drivers do not
1498          * indicate antenna swapping in software is required when
1499          * diversity is enabled.
1500          */
1501         if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1502                 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1503         if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1504                 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1505
1506         /*
1507          * Store led mode, for correct led behaviour.
1508          */
1509 #ifdef CONFIG_RT2X00_LIB_LEDS
1510         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1511
1512         rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
1513         if (value == LED_MODE_TXRX_ACTIVITY ||
1514             value == LED_MODE_DEFAULT ||
1515             value == LED_MODE_ASUS)
1516                 rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
1517                                    LED_TYPE_ACTIVITY);
1518 #endif /* CONFIG_RT2X00_LIB_LEDS */
1519
1520         /*
1521          * Detect if this device has an hardware controlled radio.
1522          */
1523         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
1524                 __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
1525
1526         /*
1527          * Read the RSSI <-> dBm offset information.
1528          */
1529         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1530         rt2x00dev->rssi_offset =
1531             rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1532
1533         return 0;
1534 }
1535
1536 /*
1537  * RF value list for RF2522
1538  * Supports: 2.4 GHz
1539  */
1540 static const struct rf_channel rf_vals_bg_2522[] = {
1541         { 1,  0x00002050, 0x000c1fda, 0x00000101, 0 },
1542         { 2,  0x00002050, 0x000c1fee, 0x00000101, 0 },
1543         { 3,  0x00002050, 0x000c2002, 0x00000101, 0 },
1544         { 4,  0x00002050, 0x000c2016, 0x00000101, 0 },
1545         { 5,  0x00002050, 0x000c202a, 0x00000101, 0 },
1546         { 6,  0x00002050, 0x000c203e, 0x00000101, 0 },
1547         { 7,  0x00002050, 0x000c2052, 0x00000101, 0 },
1548         { 8,  0x00002050, 0x000c2066, 0x00000101, 0 },
1549         { 9,  0x00002050, 0x000c207a, 0x00000101, 0 },
1550         { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1551         { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1552         { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1553         { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1554         { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1555 };
1556
1557 /*
1558  * RF value list for RF2523
1559  * Supports: 2.4 GHz
1560  */
1561 static const struct rf_channel rf_vals_bg_2523[] = {
1562         { 1,  0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1563         { 2,  0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1564         { 3,  0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1565         { 4,  0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1566         { 5,  0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1567         { 6,  0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1568         { 7,  0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1569         { 8,  0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1570         { 9,  0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1571         { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1572         { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1573         { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1574         { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1575         { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1576 };
1577
1578 /*
1579  * RF value list for RF2524
1580  * Supports: 2.4 GHz
1581  */
1582 static const struct rf_channel rf_vals_bg_2524[] = {
1583         { 1,  0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1584         { 2,  0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1585         { 3,  0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1586         { 4,  0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1587         { 5,  0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1588         { 6,  0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1589         { 7,  0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1590         { 8,  0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1591         { 9,  0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1592         { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1593         { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1594         { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1595         { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1596         { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1597 };
1598
1599 /*
1600  * RF value list for RF2525
1601  * Supports: 2.4 GHz
1602  */
1603 static const struct rf_channel rf_vals_bg_2525[] = {
1604         { 1,  0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1605         { 2,  0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1606         { 3,  0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1607         { 4,  0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1608         { 5,  0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1609         { 6,  0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1610         { 7,  0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1611         { 8,  0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1612         { 9,  0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1613         { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1614         { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1615         { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1616         { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1617         { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1618 };
1619
1620 /*
1621  * RF value list for RF2525e
1622  * Supports: 2.4 GHz
1623  */
1624 static const struct rf_channel rf_vals_bg_2525e[] = {
1625         { 1,  0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1626         { 2,  0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1627         { 3,  0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1628         { 4,  0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1629         { 5,  0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1630         { 6,  0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1631         { 7,  0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1632         { 8,  0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1633         { 9,  0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1634         { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1635         { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1636         { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1637         { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1638         { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1639 };
1640
1641 /*
1642  * RF value list for RF5222
1643  * Supports: 2.4 GHz & 5.2 GHz
1644  */
1645 static const struct rf_channel rf_vals_5222[] = {
1646         { 1,  0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1647         { 2,  0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1648         { 3,  0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1649         { 4,  0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1650         { 5,  0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1651         { 6,  0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1652         { 7,  0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1653         { 8,  0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1654         { 9,  0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1655         { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1656         { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1657         { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1658         { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1659         { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1660
1661         /* 802.11 UNI / HyperLan 2 */
1662         { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1663         { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1664         { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1665         { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1666         { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1667         { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1668         { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1669         { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1670
1671         /* 802.11 HyperLan 2 */
1672         { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1673         { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1674         { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1675         { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1676         { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1677         { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1678         { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1679         { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1680         { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1681         { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1682
1683         /* 802.11 UNII */
1684         { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1685         { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1686         { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1687         { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1688         { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1689 };
1690
1691 static int rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1692 {
1693         struct hw_mode_spec *spec = &rt2x00dev->spec;
1694         struct channel_info *info;
1695         char *tx_power;
1696         unsigned int i;
1697
1698         /*
1699          * Initialize all hw fields.
1700          *
1701          * Don't set IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING unless we are
1702          * capable of sending the buffered frames out after the DTIM
1703          * transmission using rt2x00lib_beacondone. This will send out
1704          * multicast and broadcast traffic immediately instead of buffering it
1705          * infinitly and thus dropping it after some time.
1706          */
1707         rt2x00dev->hw->flags =
1708             IEEE80211_HW_RX_INCLUDES_FCS |
1709             IEEE80211_HW_SIGNAL_DBM |
1710             IEEE80211_HW_SUPPORTS_PS |
1711             IEEE80211_HW_PS_NULLFUNC_STACK;
1712
1713         SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
1714         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1715                                 rt2x00_eeprom_addr(rt2x00dev,
1716                                                    EEPROM_MAC_ADDR_0));
1717
1718         /*
1719          * Initialize hw_mode information.
1720          */
1721         spec->supported_bands = SUPPORT_BAND_2GHZ;
1722         spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1723
1724         if (rt2x00_rf(rt2x00dev, RF2522)) {
1725                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1726                 spec->channels = rf_vals_bg_2522;
1727         } else if (rt2x00_rf(rt2x00dev, RF2523)) {
1728                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1729                 spec->channels = rf_vals_bg_2523;
1730         } else if (rt2x00_rf(rt2x00dev, RF2524)) {
1731                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1732                 spec->channels = rf_vals_bg_2524;
1733         } else if (rt2x00_rf(rt2x00dev, RF2525)) {
1734                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1735                 spec->channels = rf_vals_bg_2525;
1736         } else if (rt2x00_rf(rt2x00dev, RF2525E)) {
1737                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1738                 spec->channels = rf_vals_bg_2525e;
1739         } else if (rt2x00_rf(rt2x00dev, RF5222)) {
1740                 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1741                 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1742                 spec->channels = rf_vals_5222;
1743         }
1744
1745         /*
1746          * Create channel information array
1747          */
1748         info = kcalloc(spec->num_channels, sizeof(*info), GFP_KERNEL);
1749         if (!info)
1750                 return -ENOMEM;
1751
1752         spec->channels_info = info;
1753
1754         tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1755         for (i = 0; i < 14; i++) {
1756                 info[i].max_power = MAX_TXPOWER;
1757                 info[i].default_power1 = TXPOWER_FROM_DEV(tx_power[i]);
1758         }
1759
1760         if (spec->num_channels > 14) {
1761                 for (i = 14; i < spec->num_channels; i++) {
1762                         info[i].max_power = MAX_TXPOWER;
1763                         info[i].default_power1 = DEFAULT_TXPOWER;
1764                 }
1765         }
1766
1767         return 0;
1768 }
1769
1770 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1771 {
1772         int retval;
1773
1774         /*
1775          * Allocate eeprom data.
1776          */
1777         retval = rt2500usb_validate_eeprom(rt2x00dev);
1778         if (retval)
1779                 return retval;
1780
1781         retval = rt2500usb_init_eeprom(rt2x00dev);
1782         if (retval)
1783                 return retval;
1784
1785         /*
1786          * Initialize hw specifications.
1787          */
1788         retval = rt2500usb_probe_hw_mode(rt2x00dev);
1789         if (retval)
1790                 return retval;
1791
1792         /*
1793          * This device requires the atim queue
1794          */
1795         __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1796         __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1797         if (!modparam_nohwcrypt) {
1798                 __set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
1799                 __set_bit(DRIVER_REQUIRE_COPY_IV, &rt2x00dev->flags);
1800         }
1801         __set_bit(DRIVER_SUPPORT_WATCHDOG, &rt2x00dev->flags);
1802
1803         /*
1804          * Set the rssi offset.
1805          */
1806         rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1807
1808         return 0;
1809 }
1810
1811 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1812         .tx                     = rt2x00mac_tx,
1813         .start                  = rt2x00mac_start,
1814         .stop                   = rt2x00mac_stop,
1815         .add_interface          = rt2x00mac_add_interface,
1816         .remove_interface       = rt2x00mac_remove_interface,
1817         .config                 = rt2x00mac_config,
1818         .configure_filter       = rt2x00mac_configure_filter,
1819         .set_tim                = rt2x00mac_set_tim,
1820         .set_key                = rt2x00mac_set_key,
1821         .sw_scan_start          = rt2x00mac_sw_scan_start,
1822         .sw_scan_complete       = rt2x00mac_sw_scan_complete,
1823         .get_stats              = rt2x00mac_get_stats,
1824         .bss_info_changed       = rt2x00mac_bss_info_changed,
1825         .conf_tx                = rt2x00mac_conf_tx,
1826         .rfkill_poll            = rt2x00mac_rfkill_poll,
1827         .flush                  = rt2x00mac_flush,
1828 };
1829
1830 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1831         .probe_hw               = rt2500usb_probe_hw,
1832         .initialize             = rt2x00usb_initialize,
1833         .uninitialize           = rt2x00usb_uninitialize,
1834         .clear_entry            = rt2x00usb_clear_entry,
1835         .set_device_state       = rt2500usb_set_device_state,
1836         .rfkill_poll            = rt2500usb_rfkill_poll,
1837         .link_stats             = rt2500usb_link_stats,
1838         .reset_tuner            = rt2500usb_reset_tuner,
1839         .watchdog               = rt2x00usb_watchdog,
1840         .start_queue            = rt2500usb_start_queue,
1841         .kick_queue             = rt2x00usb_kick_queue,
1842         .stop_queue             = rt2500usb_stop_queue,
1843         .flush_queue            = rt2x00usb_flush_queue,
1844         .write_tx_desc          = rt2500usb_write_tx_desc,
1845         .write_beacon           = rt2500usb_write_beacon,
1846         .get_tx_data_len        = rt2500usb_get_tx_data_len,
1847         .fill_rxdone            = rt2500usb_fill_rxdone,
1848         .config_shared_key      = rt2500usb_config_key,
1849         .config_pairwise_key    = rt2500usb_config_key,
1850         .config_filter          = rt2500usb_config_filter,
1851         .config_intf            = rt2500usb_config_intf,
1852         .config_erp             = rt2500usb_config_erp,
1853         .config_ant             = rt2500usb_config_ant,
1854         .config                 = rt2500usb_config,
1855 };
1856
1857 static const struct data_queue_desc rt2500usb_queue_rx = {
1858         .entry_num              = 32,
1859         .data_size              = DATA_FRAME_SIZE,
1860         .desc_size              = RXD_DESC_SIZE,
1861         .priv_size              = sizeof(struct queue_entry_priv_usb),
1862 };
1863
1864 static const struct data_queue_desc rt2500usb_queue_tx = {
1865         .entry_num              = 32,
1866         .data_size              = DATA_FRAME_SIZE,
1867         .desc_size              = TXD_DESC_SIZE,
1868         .priv_size              = sizeof(struct queue_entry_priv_usb),
1869 };
1870
1871 static const struct data_queue_desc rt2500usb_queue_bcn = {
1872         .entry_num              = 1,
1873         .data_size              = MGMT_FRAME_SIZE,
1874         .desc_size              = TXD_DESC_SIZE,
1875         .priv_size              = sizeof(struct queue_entry_priv_usb_bcn),
1876 };
1877
1878 static const struct data_queue_desc rt2500usb_queue_atim = {
1879         .entry_num              = 8,
1880         .data_size              = DATA_FRAME_SIZE,
1881         .desc_size              = TXD_DESC_SIZE,
1882         .priv_size              = sizeof(struct queue_entry_priv_usb),
1883 };
1884
1885 static const struct rt2x00_ops rt2500usb_ops = {
1886         .name                   = KBUILD_MODNAME,
1887         .max_sta_intf           = 1,
1888         .max_ap_intf            = 1,
1889         .eeprom_size            = EEPROM_SIZE,
1890         .rf_size                = RF_SIZE,
1891         .tx_queues              = NUM_TX_QUEUES,
1892         .extra_tx_headroom      = TXD_DESC_SIZE,
1893         .rx                     = &rt2500usb_queue_rx,
1894         .tx                     = &rt2500usb_queue_tx,
1895         .bcn                    = &rt2500usb_queue_bcn,
1896         .atim                   = &rt2500usb_queue_atim,
1897         .lib                    = &rt2500usb_rt2x00_ops,
1898         .hw                     = &rt2500usb_mac80211_ops,
1899 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1900         .debugfs                = &rt2500usb_rt2x00debug,
1901 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1902 };
1903
1904 /*
1905  * rt2500usb module information.
1906  */
1907 static struct usb_device_id rt2500usb_device_table[] = {
1908         /* ASUS */
1909         { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1910         { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1911         /* Belkin */
1912         { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1913         { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1914         { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1915         /* Cisco Systems */
1916         { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1917         { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1918         { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1919         /* CNet */
1920         { USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt2500usb_ops) },
1921         /* Conceptronic */
1922         { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1923         /* D-LINK */
1924         { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1925         /* Gigabyte */
1926         { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1927         { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1928         /* Hercules */
1929         { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1930         /* Melco */
1931         { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
1932         { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1933         { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1934         { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1935         { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1936         /* MSI */
1937         { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1938         { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1939         { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1940         /* Ralink */
1941         { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1942         { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1943         { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1944         { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1945         /* Sagem */
1946         { USB_DEVICE(0x079b, 0x004b), USB_DEVICE_DATA(&rt2500usb_ops) },
1947         /* Siemens */
1948         { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1949         /* SMC */
1950         { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1951         /* Spairon */
1952         { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1953         /* SURECOM */
1954         { USB_DEVICE(0x0769, 0x11f3), USB_DEVICE_DATA(&rt2500usb_ops) },
1955         /* Trust */
1956         { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1957         /* VTech */
1958         { USB_DEVICE(0x0f88, 0x3012), USB_DEVICE_DATA(&rt2500usb_ops) },
1959         /* Zinwell */
1960         { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1961         { 0, }
1962 };
1963
1964 MODULE_AUTHOR(DRV_PROJECT);
1965 MODULE_VERSION(DRV_VERSION);
1966 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1967 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1968 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1969 MODULE_LICENSE("GPL");
1970
1971 static struct usb_driver rt2500usb_driver = {
1972         .name           = KBUILD_MODNAME,
1973         .id_table       = rt2500usb_device_table,
1974         .probe          = rt2x00usb_probe,
1975         .disconnect     = rt2x00usb_disconnect,
1976         .suspend        = rt2x00usb_suspend,
1977         .resume         = rt2x00usb_resume,
1978 };
1979
1980 static int __init rt2500usb_init(void)
1981 {
1982         return usb_register(&rt2500usb_driver);
1983 }
1984
1985 static void __exit rt2500usb_exit(void)
1986 {
1987         usb_deregister(&rt2500usb_driver);
1988 }
1989
1990 module_init(rt2500usb_init);
1991 module_exit(rt2500usb_exit);