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         int timeout;
 349         u32 mask;
 350         u16 reg;
 351
 352         if (crypto->cmd == SET_KEY) {
 353                 /*
 354                  * Pairwise key will always be entry 0, but this
 355                  * could collide with a shared key on the same
 356                  * position...
 357                  */
 358                 mask = TXRX_CSR0_KEY_ID.bit_mask;
 359
 360                 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 361                 reg &= mask;
 362
 363                 if (reg && reg == mask)
 364                         return -ENOSPC;
 365
 366                 reg = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);
 367
 368                 key->hw_key_idx += reg ? ffz(reg) : 0;
 369
 370                 /*
 371                  * The encryption key doesn't fit within the CSR cache,
 372                  * this means we should allocate it separately and use
 373                  * rt2x00usb_vendor_request() to send the key to the hardware.
 374                  */
 375                 reg = KEY_ENTRY(key->hw_key_idx);
 376                 timeout = REGISTER_TIMEOUT32(sizeof(crypto->key));
 377                 rt2x00usb_vendor_request_large_buff(rt2x00dev, USB_MULTI_WRITE,
 378                                                     USB_VENDOR_REQUEST_OUT, reg,
 379                                                     crypto->key,
 380                                                     sizeof(crypto->key),
 381                                                     timeout);
 382
 383                 /*
 384                  * The driver does not support the IV/EIV generation
 385                  * in hardware. However it demands the data to be provided
 386                  * both separately as well as inside the frame.
 387                  * We already provided the CONFIG_CRYPTO_COPY_IV to rt2x00lib
 388                  * to ensure rt2x00lib will not strip the data from the
 389                  * frame after the copy, now we must tell mac80211
 390                  * to generate the IV/EIV data.
 391                  */
 392                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
 393                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
 394         }
 395
 396         /*
 397          * TXRX_CSR0_KEY_ID contains only single-bit fields to indicate
 398          * a particular key is valid.
 399          */
 400         rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 401         rt2x00_set_field16(&reg, TXRX_CSR0_ALGORITHM, crypto->cipher);
 402         rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
 403
 404         mask = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);
 405         if (crypto->cmd == SET_KEY)
 406                 mask |= 1 << key->hw_key_idx;
 407         else if (crypto->cmd == DISABLE_KEY)
 408                 mask &= ~(1 << key->hw_key_idx);
 409         rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, mask);
 410         rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 411
 412         return 0;
 413 }
 414
 415 static void rt2500usb_config_filter(struct rt2x00_dev *rt2x00dev,
 416                                     const unsigned int filter_flags)
 417 {
 418         u16 reg;
 419
 420         /*
 421          * Start configuration steps.
 422          * Note that the version error will always be dropped
 423          * and broadcast frames will always be accepted since
 424          * there is no filter for it at this time.
 425          */
 426         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 427         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC,
 428                            !(filter_flags & FIF_FCSFAIL));
 429         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL,
 430                            !(filter_flags & FIF_PLCPFAIL));
 431         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL,
 432                            !(filter_flags & FIF_CONTROL));
 433         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME,
 434                            !(filter_flags & FIF_PROMISC_IN_BSS));
 435         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS,
 436                            !(filter_flags & FIF_PROMISC_IN_BSS) &&
 437                            !rt2x00dev->intf_ap_count);
 438         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
 439         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_MULTICAST,
 440                            !(filter_flags & FIF_ALLMULTI));
 441         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_BROADCAST, 0);
 442         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 443 }
 444
 445 static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
 446                                   struct rt2x00_intf *intf,
 447                                   struct rt2x00intf_conf *conf,
 448                                   const unsigned int flags)
 449 {
 450         unsigned int bcn_preload;
 451         u16 reg;
 452
 453         if (flags & CONFIG_UPDATE_TYPE) {
 454                 /*
 455                  * Enable beacon config
 456                  */
 457                 bcn_preload = PREAMBLE + GET_DURATION(IEEE80211_HEADER, 20);
 458                 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, &reg);
 459                 rt2x00_set_field16(&reg, TXRX_CSR20_OFFSET, bcn_preload >> 6);
 460                 rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW,
 461                                    2 * (conf->type != NL80211_IFTYPE_STATION));
 462                 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
 463
 464                 /*
 465                  * Enable synchronisation.
 466                  */
 467                 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
 468                 rt2x00_set_field16(&reg, TXRX_CSR18_OFFSET, 0);
 469                 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
 470
 471                 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 472                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
 473                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, conf->sync);
 474                 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
 475                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 476         }
 477
 478         if (flags & CONFIG_UPDATE_MAC)
 479                 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac,
 480                                               (3 * sizeof(__le16)));
 481
 482         if (flags & CONFIG_UPDATE_BSSID)
 483                 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid,
 484                                               (3 * sizeof(__le16)));
 485 }
 486
 487 static void rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev,
 488                                  struct rt2x00lib_erp *erp)
 489 {
 490         u16 reg;
 491
 492         rt2500usb_register_read(rt2x00dev, TXRX_CSR10, &reg);
 493         rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE,
 494                            !!erp->short_preamble);
 495         rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
 496
 497         rt2500usb_register_write(rt2x00dev, TXRX_CSR11, erp->basic_rates);
 498
 499         rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
 500         rt2x00_set_field16(&reg, TXRX_CSR18_INTERVAL, erp->beacon_int * 4);
 501         rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
 502
 503         rt2500usb_register_write(rt2x00dev, MAC_CSR10, erp->slot_time);
 504         rt2500usb_register_write(rt2x00dev, MAC_CSR11, erp->sifs);
 505         rt2500usb_register_write(rt2x00dev, MAC_CSR12, erp->eifs);
 506 }
 507
 508 static void rt2500usb_config_ant(struct rt2x00_dev *rt2x00dev,
 509                                  struct antenna_setup *ant)
 510 {
 511         u8 r2;
 512         u8 r14;
 513         u16 csr5;
 514         u16 csr6;
 515
 516         /*
 517          * We should never come here because rt2x00lib is supposed
 518          * to catch this and send us the correct antenna explicitely.
 519          */
 520         BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
 521                ant->tx == ANTENNA_SW_DIVERSITY);
 522
 523         rt2500usb_bbp_read(rt2x00dev, 2, &r2);
 524         rt2500usb_bbp_read(rt2x00dev, 14, &r14);
 525         rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
 526         rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
 527
 528         /*
 529          * Configure the TX antenna.
 530          */
 531         switch (ant->tx) {
 532         case ANTENNA_HW_DIVERSITY:
 533                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
 534                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
 535                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
 536                 break;
 537         case ANTENNA_A:
 538                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
 539                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
 540                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
 541                 break;
 542         case ANTENNA_B:
 543         default:
 544                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
 545                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
 546                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
 547                 break;
 548         }
 549
 550         /*
 551          * Configure the RX antenna.
 552          */
 553         switch (ant->rx) {
 554         case ANTENNA_HW_DIVERSITY:
 555                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
 556                 break;
 557         case ANTENNA_A:
 558                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
 559                 break;
 560         case ANTENNA_B:
 561         default:
 562                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
 563                 break;
 564         }
 565
 566         /*
 567          * RT2525E and RT5222 need to flip TX I/Q
 568          */
 569         if (rt2x00_rf(rt2x00dev, RF2525E) || rt2x00_rf(rt2x00dev, RF5222)) {
 570                 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
 571                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
 572                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
 573
 574                 /*
 575                  * RT2525E does not need RX I/Q Flip.
 576                  */
 577                 if (rt2x00_rf(rt2x00dev, RF2525E))
 578                         rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
 579         } else {
 580                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
 581                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
 582         }
 583
 584         rt2500usb_bbp_write(rt2x00dev, 2, r2);
 585         rt2500usb_bbp_write(rt2x00dev, 14, r14);
 586         rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
 587         rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
 588 }
 589
 590 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
 591                                      struct rf_channel *rf, const int txpower)
 592 {
 593         /*
 594          * Set TXpower.
 595          */
 596         rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 597
 598         /*
 599          * For RT2525E we should first set the channel to half band higher.
 600          */
 601         if (rt2x00_rf(rt2x00dev, RF2525E)) {
 602                 static const u32 vals[] = {
 603                         0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
 604                         0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
 605                         0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
 606                         0x00000902, 0x00000906
 607                 };
 608
 609                 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
 610                 if (rf->rf4)
 611                         rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
 612         }
 613
 614         rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
 615         rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
 616         rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
 617         if (rf->rf4)
 618                 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
 619 }
 620
 621 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
 622                                      const int txpower)
 623 {
 624         u32 rf3;
 625
 626         rt2x00_rf_read(rt2x00dev, 3, &rf3);
 627         rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 628         rt2500usb_rf_write(rt2x00dev, 3, rf3);
 629 }
 630
 631 static void rt2500usb_config_ps(struct rt2x00_dev *rt2x00dev,
 632                                 struct rt2x00lib_conf *libconf)
 633 {
 634         enum dev_state state =
 635             (libconf->conf->flags & IEEE80211_CONF_PS) ?
 636                 STATE_SLEEP : STATE_AWAKE;
 637         u16 reg;
 638
 639         if (state == STATE_SLEEP) {
 640                 rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 641                 rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON,
 642                                    rt2x00dev->beacon_int - 20);
 643                 rt2x00_set_field16(&reg, MAC_CSR18_BEACONS_BEFORE_WAKEUP,
 644                                    libconf->conf->listen_interval - 1);
 645
 646                 /* We must first disable autowake before it can be enabled */
 647                 rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 0);
 648                 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 649
 650                 rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 1);
 651                 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 652         } else {
 653                 rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 654                 rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 0);
 655                 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 656         }
 657
 658         rt2x00dev->ops->lib->set_device_state(rt2x00dev, state);
 659 }
 660
 661 static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
 662                              struct rt2x00lib_conf *libconf,
 663                              const unsigned int flags)
 664 {
 665         if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
 666                 rt2500usb_config_channel(rt2x00dev, &libconf->rf,
 667                                          libconf->conf->power_level);
 668         if ((flags & IEEE80211_CONF_CHANGE_POWER) &&
 669             !(flags & IEEE80211_CONF_CHANGE_CHANNEL))
 670                 rt2500usb_config_txpower(rt2x00dev,
 671                                          libconf->conf->power_level);
 672         if (flags & IEEE80211_CONF_CHANGE_PS)
 673                 rt2500usb_config_ps(rt2x00dev, libconf);
 674 }
 675
 676 /*
 677  * Link tuning
 678  */
 679 static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
 680                                  struct link_qual *qual)
 681 {
 682         u16 reg;
 683
 684         /*
 685          * Update FCS error count from register.
 686          */
 687         rt2500usb_register_read(rt2x00dev, STA_CSR0, &reg);
 688         qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
 689
 690         /*
 691          * Update False CCA count from register.
 692          */
 693         rt2500usb_register_read(rt2x00dev, STA_CSR3, &reg);
 694         qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
 695 }
 696
 697 static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev,
 698                                   struct link_qual *qual)
 699 {
 700         u16 eeprom;
 701         u16 value;
 702
 703         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
 704         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
 705         rt2500usb_bbp_write(rt2x00dev, 24, value);
 706
 707         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
 708         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
 709         rt2500usb_bbp_write(rt2x00dev, 25, value);
 710
 711         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
 712         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
 713         rt2500usb_bbp_write(rt2x00dev, 61, value);
 714
 715         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
 716         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
 717         rt2500usb_bbp_write(rt2x00dev, 17, value);
 718
 719         qual->vgc_level = value;
 720 }
 721
 722 /*
 723  * Initialization functions.
 724  */
 725 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
 726 {
 727         u16 reg;
 728
 729         rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
 730                                     USB_MODE_TEST, REGISTER_TIMEOUT);
 731         rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
 732                                     0x00f0, REGISTER_TIMEOUT);
 733
 734         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 735         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
 736         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 737
 738         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
 739         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
 740
 741         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 742         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 1);
 743         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 1);
 744         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 745         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 746
 747         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 748         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 749         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 750         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 751         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 752
 753         rt2500usb_register_read(rt2x00dev, TXRX_CSR5, &reg);
 754         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0, 13);
 755         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0_VALID, 1);
 756         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1, 12);
 757         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1_VALID, 1);
 758         rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
 759
 760         rt2500usb_register_read(rt2x00dev, TXRX_CSR6, &reg);
 761         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0, 10);
 762         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0_VALID, 1);
 763         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1, 11);
 764         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1_VALID, 1);
 765         rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
 766
 767         rt2500usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
 768         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0, 7);
 769         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0_VALID, 1);
 770         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1, 6);
 771         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1_VALID, 1);
 772         rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
 773
 774         rt2500usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
 775         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0, 5);
 776         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0_VALID, 1);
 777         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1, 0);
 778         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1_VALID, 0);
 779         rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
 780
 781         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 782         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 0);
 783         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 0);
 784         rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 0);
 785         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
 786         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 787
 788         rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
 789         rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
 790
 791         if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
 792                 return -EBUSY;
 793
 794         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 795         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 796         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 797         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 1);
 798         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 799
 800         if (rt2x00_rev(rt2x00dev) >= RT2570_VERSION_C) {
 801                 rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
 802                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 0);
 803         } else {
 804                 reg = 0;
 805                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 1);
 806                 rt2x00_set_field16(&reg, PHY_CSR2_LNA_MODE, 3);
 807         }
 808         rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
 809
 810         rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
 811         rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
 812         rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
 813         rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
 814
 815         rt2500usb_register_read(rt2x00dev, MAC_CSR8, &reg);
 816         rt2x00_set_field16(&reg, MAC_CSR8_MAX_FRAME_UNIT,
 817                            rt2x00dev->rx->data_size);
 818         rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
 819
 820         rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 821         rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
 822         rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0);
 823         rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 824
 825         rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 826         rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON, 90);
 827         rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 828
 829         rt2500usb_register_read(rt2x00dev, PHY_CSR4, &reg);
 830         rt2x00_set_field16(&reg, PHY_CSR4_LOW_RF_LE, 1);
 831         rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
 832
 833         rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
 834         rt2x00_set_field16(&reg, TXRX_CSR1_AUTO_SEQUENCE, 1);
 835         rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
 836
 837         return 0;
 838 }
 839
 840 static int rt2500usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
 841 {
 842         unsigned int i;
 843         u8 value;
 844
 845         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 846                 rt2500usb_bbp_read(rt2x00dev, 0, &value);
 847                 if ((value != 0xff) && (value != 0x00))
 848                         return 0;
 849                 udelay(REGISTER_BUSY_DELAY);
 850         }
 851
 852         ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
 853         return -EACCES;
 854 }
 855
 856 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
 857 {
 858         unsigned int i;
 859         u16 eeprom;
 860         u8 value;
 861         u8 reg_id;
 862
 863         if (unlikely(rt2500usb_wait_bbp_ready(rt2x00dev)))
 864                 return -EACCES;
 865
 866         rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
 867         rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
 868         rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
 869         rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
 870         rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
 871         rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
 872         rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
 873         rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
 874         rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
 875         rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
 876         rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
 877         rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
 878         rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
 879         rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
 880         rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
 881         rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
 882         rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
 883         rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
 884         rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
 885         rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
 886         rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
 887         rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
 888         rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
 889         rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
 890         rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
 891         rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
 892         rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
 893         rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
 894         rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
 895         rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
 896         rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
 897
 898         for (i = 0; i < EEPROM_BBP_SIZE; i++) {
 899                 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
 900
 901                 if (eeprom != 0xffff && eeprom != 0x0000) {
 902                         reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
 903                         value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
 904                         rt2500usb_bbp_write(rt2x00dev, reg_id, value);
 905                 }
 906         }
 907
 908         return 0;
 909 }
 910
 911 /*
 912  * Device state switch handlers.
 913  */
 914 static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
 915                                 enum dev_state state)
 916 {
 917         u16 reg;
 918
 919         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 920         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX,
 921                            (state == STATE_RADIO_RX_OFF) ||
 922                            (state == STATE_RADIO_RX_OFF_LINK));
 923         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 924 }
 925
 926 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
 927 {
 928         /*
 929          * Initialize all registers.
 930          */
 931         if (unlikely(rt2500usb_init_registers(rt2x00dev) ||
 932                      rt2500usb_init_bbp(rt2x00dev)))
 933                 return -EIO;
 934
 935         return 0;
 936 }
 937
 938 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
 939 {
 940         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
 941         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
 942
 943         /*
 944          * Disable synchronisation.
 945          */
 946         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
 947
 948         rt2x00usb_disable_radio(rt2x00dev);
 949 }
 950
 951 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
 952                                enum dev_state state)
 953 {
 954         u16 reg;
 955         u16 reg2;
 956         unsigned int i;
 957         char put_to_sleep;
 958         char bbp_state;
 959         char rf_state;
 960
 961         put_to_sleep = (state != STATE_AWAKE);
 962
 963         reg = 0;
 964         rt2x00_set_field16(&reg, MAC_CSR17_BBP_DESIRE_STATE, state);
 965         rt2x00_set_field16(&reg, MAC_CSR17_RF_DESIRE_STATE, state);
 966         rt2x00_set_field16(&reg, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
 967         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
 968         rt2x00_set_field16(&reg, MAC_CSR17_SET_STATE, 1);
 969         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
 970
 971         /*
 972          * Device is not guaranteed to be in the requested state yet.
 973          * We must wait until the register indicates that the
 974          * device has entered the correct state.
 975          */
 976         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 977                 rt2500usb_register_read(rt2x00dev, MAC_CSR17, &reg2);
 978                 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
 979                 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
 980                 if (bbp_state == state && rf_state == state)
 981                         return 0;
 982                 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
 983                 msleep(30);
 984         }
 985
 986         return -EBUSY;
 987 }
 988
 989 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
 990                                       enum dev_state state)
 991 {
 992         int retval = 0;
 993
 994         switch (state) {
 995         case STATE_RADIO_ON:
 996                 retval = rt2500usb_enable_radio(rt2x00dev);
 997                 break;
 998         case STATE_RADIO_OFF:
 999                 rt2500usb_disable_radio(rt2x00dev);
1000                 break;
1001         case STATE_RADIO_RX_ON:
1002         case STATE_RADIO_RX_ON_LINK:
1003         case STATE_RADIO_RX_OFF:
1004         case STATE_RADIO_RX_OFF_LINK:
1005                 rt2500usb_toggle_rx(rt2x00dev, state);
1006                 break;
1007         case STATE_RADIO_IRQ_ON:
1008         case STATE_RADIO_IRQ_OFF:
1009                 /* No support, but no error either */
1010                 break;
1011         case STATE_DEEP_SLEEP:
1012         case STATE_SLEEP:
1013         case STATE_STANDBY:
1014         case STATE_AWAKE:
1015                 retval = rt2500usb_set_state(rt2x00dev, state);
1016                 break;
1017         default:
1018                 retval = -ENOTSUPP;
1019                 break;
1020         }
1021
1022         if (unlikely(retval))
1023                 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
1024                       state, retval);
1025
1026         return retval;
1027 }
1028
1029 /*
1030  * TX descriptor initialization
1031  */
1032 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1033                                     struct sk_buff *skb,
1034                                     struct txentry_desc *txdesc)
1035 {
1036         struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1037         __le32 *txd = (__le32 *)(skb->data - TXD_DESC_SIZE);
1038         u32 word;
1039
1040         /*
1041          * Start writing the descriptor words.
1042          */
1043         rt2x00_desc_read(txd, 0, &word);
1044         rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, txdesc->retry_limit);
1045         rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1046                            test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1047         rt2x00_set_field32(&word, TXD_W0_ACK,
1048                            test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1049         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1050                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1051         rt2x00_set_field32(&word, TXD_W0_OFDM,
1052                            (txdesc->rate_mode == RATE_MODE_OFDM));
1053         rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1054                            test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
1055         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1056         rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, txdesc->length);
1057         rt2x00_set_field32(&word, TXD_W0_CIPHER, !!txdesc->cipher);
1058         rt2x00_set_field32(&word, TXD_W0_KEY_ID, txdesc->key_idx);
1059         rt2x00_desc_write(txd, 0, word);
1060
1061         rt2x00_desc_read(txd, 1, &word);
1062         rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, txdesc->iv_offset);
1063         rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1064         rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1065         rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1066         rt2x00_desc_write(txd, 1, word);
1067
1068         rt2x00_desc_read(txd, 2, &word);
1069         rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1070         rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1071         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1072         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1073         rt2x00_desc_write(txd, 2, word);
1074
1075         if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) {
1076                 _rt2x00_desc_write(txd, 3, skbdesc->iv[0]);
1077                 _rt2x00_desc_write(txd, 4, skbdesc->iv[1]);
1078         }
1079
1080         /*
1081          * Register descriptor details in skb frame descriptor.
1082          */
1083         skbdesc->desc = txd;
1084         skbdesc->desc_len = TXD_DESC_SIZE;
1085 }
1086
1087 /*
1088  * TX data initialization
1089  */
1090 static void rt2500usb_beacondone(struct urb *urb);
1091
1092 static void rt2500usb_write_beacon(struct queue_entry *entry,
1093                                    struct txentry_desc *txdesc)
1094 {
1095         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1096         struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
1097         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1098         int pipe = usb_sndbulkpipe(usb_dev, entry->queue->usb_endpoint);
1099         int length;
1100         u16 reg, reg0;
1101
1102         /*
1103          * Disable beaconing while we are reloading the beacon data,
1104          * otherwise we might be sending out invalid data.
1105          */
1106         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1107         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
1108         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1109
1110         /*
1111          * Take the descriptor in front of the skb into account.
1112          */
1113         skb_push(entry->skb, TXD_DESC_SIZE);
1114
1115         /*
1116          * USB devices cannot blindly pass the skb->len as the
1117          * length of the data to usb_fill_bulk_urb. Pass the skb
1118          * to the driver to determine what the length should be.
1119          */
1120         length = rt2x00dev->ops->lib->get_tx_data_len(entry);
1121
1122         usb_fill_bulk_urb(bcn_priv->urb, usb_dev, pipe,
1123                           entry->skb->data, length, rt2500usb_beacondone,
1124                           entry);
1125
1126         /*
1127          * Second we need to create the guardian byte.
1128          * We only need a single byte, so lets recycle
1129          * the 'flags' field we are not using for beacons.
1130          */
1131         bcn_priv->guardian_data = 0;
1132         usb_fill_bulk_urb(bcn_priv->guardian_urb, usb_dev, pipe,
1133                           &bcn_priv->guardian_data, 1, rt2500usb_beacondone,
1134                           entry);
1135
1136         /*
1137          * Send out the guardian byte.
1138          */
1139         usb_submit_urb(bcn_priv->guardian_urb, GFP_ATOMIC);
1140
1141         /*
1142          * Enable beaconing again.
1143          */
1144         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
1145         rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
1146         reg0 = reg;
1147         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
1148         /*
1149          * Beacon generation will fail initially.
1150          * To prevent this we need to change the TXRX_CSR19
1151          * register several times (reg0 is the same as reg
1152          * except for TXRX_CSR19_BEACON_GEN, which is 0 in reg0
1153          * and 1 in reg).
1154          */
1155         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1156         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
1157         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1158         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
1159         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1160 }
1161
1162 static int rt2500usb_get_tx_data_len(struct queue_entry *entry)
1163 {
1164         int length;
1165
1166         /*
1167          * The length _must_ be a multiple of 2,
1168          * but it must _not_ be a multiple of the USB packet size.
1169          */
1170         length = roundup(entry->skb->len, 2);
1171         length += (2 * !(length % entry->queue->usb_maxpacket));
1172
1173         return length;
1174 }
1175
1176 /*
1177  * RX control handlers
1178  */
1179 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1180                                   struct rxdone_entry_desc *rxdesc)
1181 {
1182         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1183         struct queue_entry_priv_usb *entry_priv = entry->priv_data;
1184         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1185         __le32 *rxd =
1186             (__le32 *)(entry->skb->data +
1187                        (entry_priv->urb->actual_length -
1188                         entry->queue->desc_size));
1189         u32 word0;
1190         u32 word1;
1191
1192         /*
1193          * Copy descriptor to the skbdesc->desc buffer, making it safe from moving of
1194          * frame data in rt2x00usb.
1195          */
1196         memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
1197         rxd = (__le32 *)skbdesc->desc;
1198
1199         /*
1200          * It is now safe to read the descriptor on all architectures.
1201          */
1202         rt2x00_desc_read(rxd, 0, &word0);
1203         rt2x00_desc_read(rxd, 1, &word1);
1204
1205         if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1206                 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1207         if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1208                 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1209
1210         rxdesc->cipher = rt2x00_get_field32(word0, RXD_W0_CIPHER);
1211         if (rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
1212                 rxdesc->cipher_status = RX_CRYPTO_FAIL_KEY;
1213
1214         if (rxdesc->cipher != CIPHER_NONE) {
1215                 _rt2x00_desc_read(rxd, 2, &rxdesc->iv[0]);
1216                 _rt2x00_desc_read(rxd, 3, &rxdesc->iv[1]);
1217                 rxdesc->dev_flags |= RXDONE_CRYPTO_IV;
1218
1219                 /* ICV is located at the end of frame */
1220
1221                 rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
1222                 if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
1223                         rxdesc->flags |= RX_FLAG_DECRYPTED;
1224                 else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
1225                         rxdesc->flags |= RX_FLAG_MMIC_ERROR;
1226         }
1227
1228         /*
1229          * Obtain the status about this packet.
1230          * When frame was received with an OFDM bitrate,
1231          * the signal is the PLCP value. If it was received with
1232          * a CCK bitrate the signal is the rate in 100kbit/s.
1233          */
1234         rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1235         rxdesc->rssi =
1236             rt2x00_get_field32(word1, RXD_W1_RSSI) - rt2x00dev->rssi_offset;
1237         rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1238
1239         if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1240                 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1241         else
1242                 rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
1243         if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1244                 rxdesc->dev_flags |= RXDONE_MY_BSS;
1245
1246         /*
1247          * Adjust the skb memory window to the frame boundaries.
1248          */
1249         skb_trim(entry->skb, rxdesc->size);
1250 }
1251
1252 /*
1253  * Interrupt functions.
1254  */
1255 static void rt2500usb_beacondone(struct urb *urb)
1256 {
1257         struct queue_entry *entry = (struct queue_entry *)urb->context;
1258         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1259
1260         if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1261                 return;
1262
1263         /*
1264          * Check if this was the guardian beacon,
1265          * if that was the case we need to send the real beacon now.
1266          * Otherwise we should free the sk_buffer, the device
1267          * should be doing the rest of the work now.
1268          */
1269         if (bcn_priv->guardian_urb == urb) {
1270                 usb_submit_urb(bcn_priv->urb, GFP_ATOMIC);
1271         } else if (bcn_priv->urb == urb) {
1272                 dev_kfree_skb(entry->skb);
1273                 entry->skb = NULL;
1274         }
1275 }
1276
1277 /*
1278  * Device probe functions.
1279  */
1280 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1281 {
1282         u16 word;
1283         u8 *mac;
1284         u8 bbp;
1285
1286         rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1287
1288         /*
1289          * Start validation of the data that has been read.
1290          */
1291         mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1292         if (!is_valid_ether_addr(mac)) {
1293                 random_ether_addr(mac);
1294                 EEPROM(rt2x00dev, "MAC: %pM\n", mac);
1295         }
1296
1297         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1298         if (word == 0xffff) {
1299                 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1300                 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1301                                    ANTENNA_SW_DIVERSITY);
1302                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1303                                    ANTENNA_SW_DIVERSITY);
1304                 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1305                                    LED_MODE_DEFAULT);
1306                 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1307                 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1308                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1309                 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1310                 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1311         }
1312
1313         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1314         if (word == 0xffff) {
1315                 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1316                 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1317                 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1318                 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1319                 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1320         }
1321
1322         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1323         if (word == 0xffff) {
1324                 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1325                                    DEFAULT_RSSI_OFFSET);
1326                 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1327                 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1328         }
1329
1330         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1331         if (word == 0xffff) {
1332                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1333                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1334                 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1335         }
1336
1337         /*
1338          * Switch lower vgc bound to current BBP R17 value,
1339          * lower the value a bit for better quality.
1340          */
1341         rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1342         bbp -= 6;
1343
1344         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1345         if (word == 0xffff) {
1346                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1347                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1348                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1349                 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1350         } else {
1351                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1352                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1353         }
1354
1355         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1356         if (word == 0xffff) {
1357                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1358                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1359                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1360                 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1361         }
1362
1363         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1364         if (word == 0xffff) {
1365                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1366                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1367                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1368                 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1369         }
1370
1371         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1372         if (word == 0xffff) {
1373                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1374                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1375                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1376                 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1377         }
1378
1379         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1380         if (word == 0xffff) {
1381                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1382                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1383                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1384                 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1385         }
1386
1387         return 0;
1388 }
1389
1390 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1391 {
1392         u16 reg;
1393         u16 value;
1394         u16 eeprom;
1395
1396         /*
1397          * Read EEPROM word for configuration.
1398          */
1399         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1400
1401         /*
1402          * Identify RF chipset.
1403          */
1404         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1405         rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1406         rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1407
1408         if (((reg & 0xfff0) != 0) || ((reg & 0x0000000f) == 0)) {
1409                 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1410                 return -ENODEV;
1411         }
1412
1413         if (!rt2x00_rf(rt2x00dev, RF2522) &&
1414             !rt2x00_rf(rt2x00dev, RF2523) &&
1415             !rt2x00_rf(rt2x00dev, RF2524) &&
1416             !rt2x00_rf(rt2x00dev, RF2525) &&
1417             !rt2x00_rf(rt2x00dev, RF2525E) &&
1418             !rt2x00_rf(rt2x00dev, RF5222)) {
1419                 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1420                 return -ENODEV;
1421         }
1422
1423         /*
1424          * Identify default antenna configuration.
1425          */
1426         rt2x00dev->default_ant.tx =
1427             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1428         rt2x00dev->default_ant.rx =
1429             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1430
1431         /*
1432          * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1433          * I am not 100% sure about this, but the legacy drivers do not
1434          * indicate antenna swapping in software is required when
1435          * diversity is enabled.
1436          */
1437         if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1438                 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1439         if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1440                 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1441
1442         /*
1443          * Store led mode, for correct led behaviour.
1444          */
1445 #ifdef CONFIG_RT2X00_LIB_LEDS
1446         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1447
1448         rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
1449         if (value == LED_MODE_TXRX_ACTIVITY ||
1450             value == LED_MODE_DEFAULT ||
1451             value == LED_MODE_ASUS)
1452                 rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
1453                                    LED_TYPE_ACTIVITY);
1454 #endif /* CONFIG_RT2X00_LIB_LEDS */
1455
1456         /*
1457          * Detect if this device has an hardware controlled radio.
1458          */
1459         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
1460                 __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
1461
1462         /*
1463          * Check if the BBP tuning should be disabled.
1464          */
1465         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1466         if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1467                 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1468
1469         /*
1470          * Read the RSSI <-> dBm offset information.
1471          */
1472         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1473         rt2x00dev->rssi_offset =
1474             rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1475
1476         return 0;
1477 }
1478
1479 /*
1480  * RF value list for RF2522
1481  * Supports: 2.4 GHz
1482  */
1483 static const struct rf_channel rf_vals_bg_2522[] = {
1484         { 1,  0x00002050, 0x000c1fda, 0x00000101, 0 },
1485         { 2,  0x00002050, 0x000c1fee, 0x00000101, 0 },
1486         { 3,  0x00002050, 0x000c2002, 0x00000101, 0 },
1487         { 4,  0x00002050, 0x000c2016, 0x00000101, 0 },
1488         { 5,  0x00002050, 0x000c202a, 0x00000101, 0 },
1489         { 6,  0x00002050, 0x000c203e, 0x00000101, 0 },
1490         { 7,  0x00002050, 0x000c2052, 0x00000101, 0 },
1491         { 8,  0x00002050, 0x000c2066, 0x00000101, 0 },
1492         { 9,  0x00002050, 0x000c207a, 0x00000101, 0 },
1493         { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1494         { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1495         { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1496         { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1497         { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1498 };
1499
1500 /*
1501  * RF value list for RF2523
1502  * Supports: 2.4 GHz
1503  */
1504 static const struct rf_channel rf_vals_bg_2523[] = {
1505         { 1,  0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1506         { 2,  0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1507         { 3,  0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1508         { 4,  0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1509         { 5,  0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1510         { 6,  0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1511         { 7,  0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1512         { 8,  0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1513         { 9,  0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1514         { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1515         { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1516         { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1517         { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1518         { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1519 };
1520
1521 /*
1522  * RF value list for RF2524
1523  * Supports: 2.4 GHz
1524  */
1525 static const struct rf_channel rf_vals_bg_2524[] = {
1526         { 1,  0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1527         { 2,  0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1528         { 3,  0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1529         { 4,  0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1530         { 5,  0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1531         { 6,  0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1532         { 7,  0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1533         { 8,  0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1534         { 9,  0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1535         { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1536         { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1537         { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1538         { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1539         { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1540 };
1541
1542 /*
1543  * RF value list for RF2525
1544  * Supports: 2.4 GHz
1545  */
1546 static const struct rf_channel rf_vals_bg_2525[] = {
1547         { 1,  0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1548         { 2,  0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1549         { 3,  0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1550         { 4,  0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1551         { 5,  0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1552         { 6,  0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1553         { 7,  0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1554         { 8,  0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1555         { 9,  0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1556         { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1557         { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1558         { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1559         { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1560         { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1561 };
1562
1563 /*
1564  * RF value list for RF2525e
1565  * Supports: 2.4 GHz
1566  */
1567 static const struct rf_channel rf_vals_bg_2525e[] = {
1568         { 1,  0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1569         { 2,  0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1570         { 3,  0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1571         { 4,  0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1572         { 5,  0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1573         { 6,  0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1574         { 7,  0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1575         { 8,  0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1576         { 9,  0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1577         { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1578         { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1579         { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1580         { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1581         { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1582 };
1583
1584 /*
1585  * RF value list for RF5222
1586  * Supports: 2.4 GHz & 5.2 GHz
1587  */
1588 static const struct rf_channel rf_vals_5222[] = {
1589         { 1,  0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1590         { 2,  0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1591         { 3,  0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1592         { 4,  0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1593         { 5,  0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1594         { 6,  0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1595         { 7,  0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1596         { 8,  0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1597         { 9,  0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1598         { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1599         { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1600         { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1601         { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1602         { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1603
1604         /* 802.11 UNI / HyperLan 2 */
1605         { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1606         { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1607         { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1608         { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1609         { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1610         { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1611         { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1612         { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1613
1614         /* 802.11 HyperLan 2 */
1615         { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1616         { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1617         { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1618         { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1619         { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1620         { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1621         { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1622         { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1623         { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1624         { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1625
1626         /* 802.11 UNII */
1627         { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1628         { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1629         { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1630         { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1631         { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1632 };
1633
1634 static int rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1635 {
1636         struct hw_mode_spec *spec = &rt2x00dev->spec;
1637         struct channel_info *info;
1638         char *tx_power;
1639         unsigned int i;
1640
1641         /*
1642          * Initialize all hw fields.
1643          */
1644         rt2x00dev->hw->flags =
1645             IEEE80211_HW_RX_INCLUDES_FCS |
1646             IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1647             IEEE80211_HW_SIGNAL_DBM |
1648             IEEE80211_HW_SUPPORTS_PS |
1649             IEEE80211_HW_PS_NULLFUNC_STACK;
1650
1651         SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
1652         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1653                                 rt2x00_eeprom_addr(rt2x00dev,
1654                                                    EEPROM_MAC_ADDR_0));
1655
1656         /*
1657          * Initialize hw_mode information.
1658          */
1659         spec->supported_bands = SUPPORT_BAND_2GHZ;
1660         spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1661
1662         if (rt2x00_rf(rt2x00dev, RF2522)) {
1663                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1664                 spec->channels = rf_vals_bg_2522;
1665         } else if (rt2x00_rf(rt2x00dev, RF2523)) {
1666                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1667                 spec->channels = rf_vals_bg_2523;
1668         } else if (rt2x00_rf(rt2x00dev, RF2524)) {
1669                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1670                 spec->channels = rf_vals_bg_2524;
1671         } else if (rt2x00_rf(rt2x00dev, RF2525)) {
1672                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1673                 spec->channels = rf_vals_bg_2525;
1674         } else if (rt2x00_rf(rt2x00dev, RF2525E)) {
1675                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1676                 spec->channels = rf_vals_bg_2525e;
1677         } else if (rt2x00_rf(rt2x00dev, RF5222)) {
1678                 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1679                 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1680                 spec->channels = rf_vals_5222;
1681         }
1682
1683         /*
1684          * Create channel information array
1685          */
1686         info = kzalloc(spec->num_channels * sizeof(*info), GFP_KERNEL);
1687         if (!info)
1688                 return -ENOMEM;
1689
1690         spec->channels_info = info;
1691
1692         tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1693         for (i = 0; i < 14; i++)
1694                 info[i].tx_power1 = TXPOWER_FROM_DEV(tx_power[i]);
1695
1696         if (spec->num_channels > 14) {
1697                 for (i = 14; i < spec->num_channels; i++)
1698                         info[i].tx_power1 = DEFAULT_TXPOWER;
1699         }
1700
1701         return 0;
1702 }
1703
1704 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1705 {
1706         int retval;
1707
1708         /*
1709          * Allocate eeprom data.
1710          */
1711         retval = rt2500usb_validate_eeprom(rt2x00dev);
1712         if (retval)
1713                 return retval;
1714
1715         retval = rt2500usb_init_eeprom(rt2x00dev);
1716         if (retval)
1717                 return retval;
1718
1719         /*
1720          * Initialize hw specifications.
1721          */
1722         retval = rt2500usb_probe_hw_mode(rt2x00dev);
1723         if (retval)
1724                 return retval;
1725
1726         /*
1727          * This device requires the atim queue
1728          */
1729         __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1730         __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1731         if (!modparam_nohwcrypt) {
1732                 __set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
1733                 __set_bit(DRIVER_REQUIRE_COPY_IV, &rt2x00dev->flags);
1734         }
1735         __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1736
1737         /*
1738          * Set the rssi offset.
1739          */
1740         rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1741
1742         return 0;
1743 }
1744
1745 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1746         .tx                     = rt2x00mac_tx,
1747         .start                  = rt2x00mac_start,
1748         .stop                   = rt2x00mac_stop,
1749         .add_interface          = rt2x00mac_add_interface,
1750         .remove_interface       = rt2x00mac_remove_interface,
1751         .config                 = rt2x00mac_config,
1752         .configure_filter       = rt2x00mac_configure_filter,
1753         .set_tim                = rt2x00mac_set_tim,
1754         .set_key                = rt2x00mac_set_key,
1755         .get_stats              = rt2x00mac_get_stats,
1756         .bss_info_changed       = rt2x00mac_bss_info_changed,
1757         .conf_tx                = rt2x00mac_conf_tx,
1758         .rfkill_poll            = rt2x00mac_rfkill_poll,
1759 };
1760
1761 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1762         .probe_hw               = rt2500usb_probe_hw,
1763         .initialize             = rt2x00usb_initialize,
1764         .uninitialize           = rt2x00usb_uninitialize,
1765         .clear_entry            = rt2x00usb_clear_entry,
1766         .set_device_state       = rt2500usb_set_device_state,
1767         .rfkill_poll            = rt2500usb_rfkill_poll,
1768         .link_stats             = rt2500usb_link_stats,
1769         .reset_tuner            = rt2500usb_reset_tuner,
1770         .write_tx_desc          = rt2500usb_write_tx_desc,
1771         .write_tx_data          = rt2x00usb_write_tx_data,
1772         .write_beacon           = rt2500usb_write_beacon,
1773         .get_tx_data_len        = rt2500usb_get_tx_data_len,
1774         .kick_tx_queue          = rt2x00usb_kick_tx_queue,
1775         .kill_tx_queue          = rt2x00usb_kill_tx_queue,
1776         .fill_rxdone            = rt2500usb_fill_rxdone,
1777         .config_shared_key      = rt2500usb_config_key,
1778         .config_pairwise_key    = rt2500usb_config_key,
1779         .config_filter          = rt2500usb_config_filter,
1780         .config_intf            = rt2500usb_config_intf,
1781         .config_erp             = rt2500usb_config_erp,
1782         .config_ant             = rt2500usb_config_ant,
1783         .config                 = rt2500usb_config,
1784 };
1785
1786 static const struct data_queue_desc rt2500usb_queue_rx = {
1787         .entry_num              = RX_ENTRIES,
1788         .data_size              = DATA_FRAME_SIZE,
1789         .desc_size              = RXD_DESC_SIZE,
1790         .priv_size              = sizeof(struct queue_entry_priv_usb),
1791 };
1792
1793 static const struct data_queue_desc rt2500usb_queue_tx = {
1794         .entry_num              = TX_ENTRIES,
1795         .data_size              = DATA_FRAME_SIZE,
1796         .desc_size              = TXD_DESC_SIZE,
1797         .priv_size              = sizeof(struct queue_entry_priv_usb),
1798 };
1799
1800 static const struct data_queue_desc rt2500usb_queue_bcn = {
1801         .entry_num              = BEACON_ENTRIES,
1802         .data_size              = MGMT_FRAME_SIZE,
1803         .desc_size              = TXD_DESC_SIZE,
1804         .priv_size              = sizeof(struct queue_entry_priv_usb_bcn),
1805 };
1806
1807 static const struct data_queue_desc rt2500usb_queue_atim = {
1808         .entry_num              = ATIM_ENTRIES,
1809         .data_size              = DATA_FRAME_SIZE,
1810         .desc_size              = TXD_DESC_SIZE,
1811         .priv_size              = sizeof(struct queue_entry_priv_usb),
1812 };
1813
1814 static const struct rt2x00_ops rt2500usb_ops = {
1815         .name                   = KBUILD_MODNAME,
1816         .max_sta_intf           = 1,
1817         .max_ap_intf            = 1,
1818         .eeprom_size            = EEPROM_SIZE,
1819         .rf_size                = RF_SIZE,
1820         .tx_queues              = NUM_TX_QUEUES,
1821         .extra_tx_headroom      = TXD_DESC_SIZE,
1822         .rx                     = &rt2500usb_queue_rx,
1823         .tx                     = &rt2500usb_queue_tx,
1824         .bcn                    = &rt2500usb_queue_bcn,
1825         .atim                   = &rt2500usb_queue_atim,
1826         .lib                    = &rt2500usb_rt2x00_ops,
1827         .hw                     = &rt2500usb_mac80211_ops,
1828 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1829         .debugfs                = &rt2500usb_rt2x00debug,
1830 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1831 };
1832
1833 /*
1834  * rt2500usb module information.
1835  */
1836 static struct usb_device_id rt2500usb_device_table[] = {
1837         /* ASUS */
1838         { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1839         { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1840         /* Belkin */
1841         { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1842         { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1843         { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1844         /* Cisco Systems */
1845         { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1846         { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1847         { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1848         /* CNet */
1849         { USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt2500usb_ops) },
1850         /* Conceptronic */
1851         { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1852         /* D-LINK */
1853         { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1854         /* Gigabyte */
1855         { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1856         { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1857         /* Hercules */
1858         { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1859         /* Melco */
1860         { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
1861         { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1862         { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1863         { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1864         { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1865         /* MSI */
1866         { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1867         { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1868         { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1869         /* Ralink */
1870         { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1871         { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1872         { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1873         { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1874         /* Sagem */
1875         { USB_DEVICE(0x079b, 0x004b), USB_DEVICE_DATA(&rt2500usb_ops) },
1876         /* Siemens */
1877         { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1878         /* SMC */
1879         { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1880         /* Spairon */
1881         { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1882         /* SURECOM */
1883         { USB_DEVICE(0x0769, 0x11f3), USB_DEVICE_DATA(&rt2500usb_ops) },
1884         /* Trust */
1885         { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1886         /* VTech */
1887         { USB_DEVICE(0x0f88, 0x3012), USB_DEVICE_DATA(&rt2500usb_ops) },
1888         /* Zinwell */
1889         { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1890         { 0, }
1891 };
1892
1893 MODULE_AUTHOR(DRV_PROJECT);
1894 MODULE_VERSION(DRV_VERSION);
1895 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1896 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1897 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1898 MODULE_LICENSE("GPL");
1899
1900 static struct usb_driver rt2500usb_driver = {
1901         .name           = KBUILD_MODNAME,
1902         .id_table       = rt2500usb_device_table,
1903         .probe          = rt2x00usb_probe,
1904         .disconnect     = rt2x00usb_disconnect,
1905         .suspend        = rt2x00usb_suspend,
1906         .resume         = rt2x00usb_resume,
1907 };
1908
1909 static int __init rt2500usb_init(void)
1910 {
1911         return usb_register(&rt2500usb_driver);
1912 }
1913
1914 static void __exit rt2500usb_exit(void)
1915 {
1916         usb_deregister(&rt2500usb_driver);
1917 }
1918
1919 module_init(rt2500usb_init);
1920 module_exit(rt2500usb_exit);