drivers/net/wireless/rt2x00/rt2500usb.c

   1 /*
   2         Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
   3         <http://rt2x00.serialmonkey.com>
   4
   5         This program is free software; you can redistribute it and/or modify
   6         it under the terms of the GNU General Public License as published by
   7         the Free Software Foundation; either version 2 of the License, or
   8         (at your option) any later version.
   9
  10         This program is distributed in the hope that it will be useful,
  11         but WITHOUT ANY WARRANTY; without even the implied warranty of
  12         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13         GNU General Public License for more details.
  14
  15         You should have received a copy of the GNU General Public License
  16         along with this program; if not, write to the
  17         Free Software Foundation, Inc.,
  18         59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 /*
  22         Module: rt2500usb
  23         Abstract: rt2500usb device specific routines.
  24         Supported chipsets: RT2570.
  25  */
  26
  27 #include <linux/delay.h>
  28 #include <linux/etherdevice.h>
  29 #include <linux/init.h>
  30 #include <linux/kernel.h>
  31 #include <linux/module.h>
  32 #include <linux/slab.h>
  33 #include <linux/usb.h>
  34
  35 #include "rt2x00.h"
  36 #include "rt2x00usb.h"
  37 #include "rt2500usb.h"
  38
  39 /*
  40  * Allow hardware encryption to be disabled.
  41  */
  42 static int modparam_nohwcrypt = 0;
  43 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
  44 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
  45
  46 /*
  47  * Register access.
  48  * All access to the CSR registers will go through the methods
  49  * rt2500usb_register_read and rt2500usb_register_write.
  50  * BBP and RF register require indirect register access,
  51  * and use the CSR registers BBPCSR and RFCSR to achieve this.
  52  * These indirect registers work with busy bits,
  53  * and we will try maximal REGISTER_BUSY_COUNT times to access
  54  * the register while taking a REGISTER_BUSY_DELAY us delay
  55  * between each attampt. When the busy bit is still set at that time,
  56  * the access attempt is considered to have failed,
  57  * and we will print an error.
  58  * If the csr_mutex is already held then the _lock variants must
  59  * be used instead.
  60  */
  61 static inline void rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
  62                                            const unsigned int offset,
  63                                            u16 *value)
  64 {
  65         __le16 reg;
  66         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
  67                                       USB_VENDOR_REQUEST_IN, offset,
  68                                       &reg, sizeof(reg), REGISTER_TIMEOUT);
  69         *value = le16_to_cpu(reg);
  70 }
  71
  72 static inline void rt2500usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
  73                                                 const unsigned int offset,
  74                                                 u16 *value)
  75 {
  76         __le16 reg;
  77         rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
  78                                        USB_VENDOR_REQUEST_IN, offset,
  79                                        &reg, sizeof(reg), REGISTER_TIMEOUT);
  80         *value = le16_to_cpu(reg);
  81 }
  82
  83 static inline void rt2500usb_register_multiread(struct rt2x00_dev *rt2x00dev,
  84                                                 const unsigned int offset,
  85                                                 void *value, const u16 length)
  86 {
  87         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
  88                                       USB_VENDOR_REQUEST_IN, offset,
  89                                       value, length,
  90                                       REGISTER_TIMEOUT16(length));
  91 }
  92
  93 static inline void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
  94                                             const unsigned int offset,
  95                                             u16 value)
  96 {
  97         __le16 reg = cpu_to_le16(value);
  98         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
  99                                       USB_VENDOR_REQUEST_OUT, offset,
 100                                       &reg, sizeof(reg), REGISTER_TIMEOUT);
 101 }
 102
 103 static inline void rt2500usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
 104                                                  const unsigned int offset,
 105                                                  u16 value)
 106 {
 107         __le16 reg = cpu_to_le16(value);
 108         rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
 109                                        USB_VENDOR_REQUEST_OUT, offset,
 110                                        &reg, sizeof(reg), REGISTER_TIMEOUT);
 111 }
 112
 113 static inline void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
 114                                                  const unsigned int offset,
 115                                                  void *value, const u16 length)
 116 {
 117         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
 118                                       USB_VENDOR_REQUEST_OUT, offset,
 119                                       value, length,
 120                                       REGISTER_TIMEOUT16(length));
 121 }
 122
 123 static int rt2500usb_regbusy_read(struct rt2x00_dev *rt2x00dev,
 124                                   const unsigned int offset,
 125                                   struct rt2x00_field16 field,
 126                                   u16 *reg)
 127 {
 128         unsigned int i;
 129
 130         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 131                 rt2500usb_register_read_lock(rt2x00dev, offset, reg);
 132                 if (!rt2x00_get_field16(*reg, field))
 133                         return 1;
 134                 udelay(REGISTER_BUSY_DELAY);
 135         }
 136
 137         ERROR(rt2x00dev, "Indirect register access failed: "
 138               "offset=0x%.08x, value=0x%.08x\n", offset, *reg);
 139         *reg = ~0;
 140
 141         return 0;
 142 }
 143
 144 #define WAIT_FOR_BBP(__dev, __reg) \
 145         rt2500usb_regbusy_read((__dev), PHY_CSR8, PHY_CSR8_BUSY, (__reg))
 146 #define WAIT_FOR_RF(__dev, __reg) \
 147         rt2500usb_regbusy_read((__dev), PHY_CSR10, PHY_CSR10_RF_BUSY, (__reg))
 148
 149 static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
 150                                 const unsigned int word, const u8 value)
 151 {
 152         u16 reg;
 153
 154         mutex_lock(&rt2x00dev->csr_mutex);
 155
 156         /*
 157          * Wait until the BBP becomes available, afterwards we
 158          * can safely write the new data into the register.
 159          */
 160         if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
 161                 reg = 0;
 162                 rt2x00_set_field16(&reg, PHY_CSR7_DATA, value);
 163                 rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
 164                 rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 0);
 165
 166                 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
 167         }
 168
 169         mutex_unlock(&rt2x00dev->csr_mutex);
 170 }
 171
 172 static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
 173                                const unsigned int word, u8 *value)
 174 {
 175         u16 reg;
 176
 177         mutex_lock(&rt2x00dev->csr_mutex);
 178
 179         /*
 180          * Wait until the BBP becomes available, afterwards we
 181          * can safely write the read request into the register.
 182          * After the data has been written, we wait until hardware
 183          * returns the correct value, if at any time the register
 184          * doesn't become available in time, reg will be 0xffffffff
 185          * which means we return 0xff to the caller.
 186          */
 187         if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
 188                 reg = 0;
 189                 rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
 190                 rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 1);
 191
 192                 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
 193
 194                 if (WAIT_FOR_BBP(rt2x00dev, &reg))
 195                         rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, &reg);
 196         }
 197
 198         *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
 199
 200         mutex_unlock(&rt2x00dev->csr_mutex);
 201 }
 202
 203 static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
 204                                const unsigned int word, const u32 value)
 205 {
 206         u16 reg;
 207
 208         mutex_lock(&rt2x00dev->csr_mutex);
 209
 210         /*
 211          * Wait until the RF becomes available, afterwards we
 212          * can safely write the new data into the register.
 213          */
 214         if (WAIT_FOR_RF(rt2x00dev, &reg)) {
 215                 reg = 0;
 216                 rt2x00_set_field16(&reg, PHY_CSR9_RF_VALUE, value);
 217                 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR9, reg);
 218
 219                 reg = 0;
 220                 rt2x00_set_field16(&reg, PHY_CSR10_RF_VALUE, value >> 16);
 221                 rt2x00_set_field16(&reg, PHY_CSR10_RF_NUMBER_OF_BITS, 20);
 222                 rt2x00_set_field16(&reg, PHY_CSR10_RF_IF_SELECT, 0);
 223                 rt2x00_set_field16(&reg, PHY_CSR10_RF_BUSY, 1);
 224
 225                 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR10, reg);
 226                 rt2x00_rf_write(rt2x00dev, word, value);
 227         }
 228
 229         mutex_unlock(&rt2x00dev->csr_mutex);
 230 }
 231
 232 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 233 static void _rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
 234                                      const unsigned int offset,
 235                                      u32 *value)
 236 {
 237         rt2500usb_register_read(rt2x00dev, offset, (u16 *)value);
 238 }
 239
 240 static void _rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
 241                                       const unsigned int offset,
 242                                       u32 value)
 243 {
 244         rt2500usb_register_write(rt2x00dev, offset, value);
 245 }
 246
 247 static const struct rt2x00debug rt2500usb_rt2x00debug = {
 248         .owner  = THIS_MODULE,
 249         .csr    = {
 250                 .read           = _rt2500usb_register_read,
 251                 .write          = _rt2500usb_register_write,
 252                 .flags          = RT2X00DEBUGFS_OFFSET,
 253                 .word_base      = CSR_REG_BASE,
 254                 .word_size      = sizeof(u16),
 255                 .word_count     = CSR_REG_SIZE / sizeof(u16),
 256         },
 257         .eeprom = {
 258                 .read           = rt2x00_eeprom_read,
 259                 .write          = rt2x00_eeprom_write,
 260                 .word_base      = EEPROM_BASE,
 261                 .word_size      = sizeof(u16),
 262                 .word_count     = EEPROM_SIZE / sizeof(u16),
 263         },
 264         .bbp    = {
 265                 .read           = rt2500usb_bbp_read,
 266                 .write          = rt2500usb_bbp_write,
 267                 .word_base      = BBP_BASE,
 268                 .word_size      = sizeof(u8),
 269                 .word_count     = BBP_SIZE / sizeof(u8),
 270         },
 271         .rf     = {
 272                 .read           = rt2x00_rf_read,
 273                 .write          = rt2500usb_rf_write,
 274                 .word_base      = RF_BASE,
 275                 .word_size      = sizeof(u32),
 276                 .word_count     = RF_SIZE / sizeof(u32),
 277         },
 278 };
 279 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 280
 281 static int rt2500usb_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 282 {
 283         u16 reg;
 284
 285         rt2500usb_register_read(rt2x00dev, MAC_CSR19, &reg);
 286         return rt2x00_get_field32(reg, MAC_CSR19_BIT7);
 287 }
 288
 289 #ifdef CONFIG_RT2X00_LIB_LEDS
 290 static void rt2500usb_brightness_set(struct led_classdev *led_cdev,
 291                                      enum led_brightness brightness)
 292 {
 293         struct rt2x00_led *led =
 294             container_of(led_cdev, struct rt2x00_led, led_dev);
 295         unsigned int enabled = brightness != LED_OFF;
 296         u16 reg;
 297
 298         rt2500usb_register_read(led->rt2x00dev, MAC_CSR20, &reg);
 299
 300         if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
 301                 rt2x00_set_field16(&reg, MAC_CSR20_LINK, enabled);
 302         else if (led->type == LED_TYPE_ACTIVITY)
 303                 rt2x00_set_field16(&reg, MAC_CSR20_ACTIVITY, enabled);
 304
 305         rt2500usb_register_write(led->rt2x00dev, MAC_CSR20, reg);
 306 }
 307
 308 static int rt2500usb_blink_set(struct led_classdev *led_cdev,
 309                                unsigned long *delay_on,
 310                                unsigned long *delay_off)
 311 {
 312         struct rt2x00_led *led =
 313             container_of(led_cdev, struct rt2x00_led, led_dev);
 314         u16 reg;
 315
 316         rt2500usb_register_read(led->rt2x00dev, MAC_CSR21, &reg);
 317         rt2x00_set_field16(&reg, MAC_CSR21_ON_PERIOD, *delay_on);
 318         rt2x00_set_field16(&reg, MAC_CSR21_OFF_PERIOD, *delay_off);
 319         rt2500usb_register_write(led->rt2x00dev, MAC_CSR21, reg);
 320
 321         return 0;
 322 }
 323
 324 static void rt2500usb_init_led(struct rt2x00_dev *rt2x00dev,
 325                                struct rt2x00_led *led,
 326                                enum led_type type)
 327 {
 328         led->rt2x00dev = rt2x00dev;
 329         led->type = type;
 330         led->led_dev.brightness_set = rt2500usb_brightness_set;
 331         led->led_dev.blink_set = rt2500usb_blink_set;
 332         led->flags = LED_INITIALIZED;
 333 }
 334 #endif /* CONFIG_RT2X00_LIB_LEDS */
 335
 336 /*
 337  * Configuration handlers.
 338  */
 339
 340 /*
 341  * rt2500usb does not differentiate between shared and pairwise
 342  * keys, so we should use the same function for both key types.
 343  */
 344 static int rt2500usb_config_key(struct rt2x00_dev *rt2x00dev,
 345                                 struct rt2x00lib_crypto *crypto,
 346                                 struct ieee80211_key_conf *key)
 347 {
 348         u32 mask;
 349         u16 reg;
 350         enum cipher curr_cipher;
 351
 352         if (crypto->cmd == SET_KEY) {
 353                 /*
 354                  * 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                 curr_cipher = rt2x00_get_field16(reg, TXRX_CSR0_ALGORITHM);
 362                 reg &= mask;
 363
 364                 if (reg && reg == mask)
 365                         return -ENOSPC;
 366
 367                 reg = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);
 368
 369                 key->hw_key_idx += reg ? ffz(reg) : 0;
 370                 /*
 371                  * Hardware requires that all keys use the same cipher
 372                  * (e.g. TKIP-only, AES-only, but not TKIP+AES).
 373                  * If this is not the first key, compare the cipher with the
 374                  * first one and fall back to SW crypto if not the same.
 375                  */
 376                 if (key->hw_key_idx > 0 && crypto->cipher != curr_cipher)
 377                         return -EOPNOTSUPP;
 378
 379                 rt2500usb_register_multiwrite(rt2x00dev, KEY_ENTRY(key->hw_key_idx),
 380                                               crypto->key, sizeof(crypto->key));
 381
 382                 /*
 383                  * The driver does not support the IV/EIV generation
 384                  * in hardware. However it demands the data to be provided
 385                  * both separately as well as inside the frame.
 386                  * We already provided the CONFIG_CRYPTO_COPY_IV to rt2x00lib
 387                  * to ensure rt2x00lib will not strip the data from the
 388                  * frame after the copy, now we must tell mac80211
 389                  * to generate the IV/EIV data.
 390                  */
 391                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
 392                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
 393         }
 394
 395         /*
 396          * TXRX_CSR0_KEY_ID contains only single-bit fields to indicate
 397          * a particular key is valid.
 398          */
 399         rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 400         rt2x00_set_field16(&reg, TXRX_CSR0_ALGORITHM, crypto->cipher);
 401         rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
 402
 403         mask = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);
 404         if (crypto->cmd == SET_KEY)
 405                 mask |= 1 << key->hw_key_idx;
 406         else if (crypto->cmd == DISABLE_KEY)
 407                 mask &= ~(1 << key->hw_key_idx);
 408         rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, mask);
 409         rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 410
 411         return 0;
 412 }
 413
 414 static void rt2500usb_config_filter(struct rt2x00_dev *rt2x00dev,
 415                                     const unsigned int filter_flags)
 416 {
 417         u16 reg;
 418
 419         /*
 420          * Start configuration steps.
 421          * Note that the version error will always be dropped
 422          * and broadcast frames will always be accepted since
 423          * there is no filter for it at this time.
 424          */
 425         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 426         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CRC,
 427                            !(filter_flags & FIF_FCSFAIL));
 428         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_PHYSICAL,
 429                            !(filter_flags & FIF_PLCPFAIL));
 430         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL,
 431                            !(filter_flags & FIF_CONTROL));
 432         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME,
 433                            !(filter_flags & FIF_PROMISC_IN_BSS));
 434         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS,
 435                            !(filter_flags & FIF_PROMISC_IN_BSS) &&
 436                            !rt2x00dev->intf_ap_count);
 437         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
 438         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_MULTICAST,
 439                            !(filter_flags & FIF_ALLMULTI));
 440         rt2x00_set_field16(&reg, TXRX_CSR2_DROP_BROADCAST, 0);
 441         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 442 }
 443
 444 static void rt2500usb_config_intf(struct rt2x00_dev *rt2x00dev,
 445                                   struct rt2x00_intf *intf,
 446                                   struct rt2x00intf_conf *conf,
 447                                   const unsigned int flags)
 448 {
 449         unsigned int bcn_preload;
 450         u16 reg;
 451
 452         if (flags & CONFIG_UPDATE_TYPE) {
 453                 /*
 454                  * Enable beacon config
 455                  */
 456                 bcn_preload = PREAMBLE + GET_DURATION(IEEE80211_HEADER, 20);
 457                 rt2500usb_register_read(rt2x00dev, TXRX_CSR20, &reg);
 458                 rt2x00_set_field16(&reg, TXRX_CSR20_OFFSET, bcn_preload >> 6);
 459                 rt2x00_set_field16(&reg, TXRX_CSR20_BCN_EXPECT_WINDOW,
 460                                    2 * (conf->type != NL80211_IFTYPE_STATION));
 461                 rt2500usb_register_write(rt2x00dev, TXRX_CSR20, reg);
 462
 463                 /*
 464                  * Enable synchronisation.
 465                  */
 466                 rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
 467                 rt2x00_set_field16(&reg, TXRX_CSR18_OFFSET, 0);
 468                 rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
 469
 470                 rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 471                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
 472                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, conf->sync);
 473                 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
 474                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 475         }
 476
 477         if (flags & CONFIG_UPDATE_MAC)
 478                 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, conf->mac,
 479                                               (3 * sizeof(__le16)));
 480
 481         if (flags & CONFIG_UPDATE_BSSID)
 482                 rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, conf->bssid,
 483                                               (3 * sizeof(__le16)));
 484 }
 485
 486 static void rt2500usb_config_erp(struct rt2x00_dev *rt2x00dev,
 487                                  struct rt2x00lib_erp *erp)
 488 {
 489         u16 reg;
 490
 491         rt2500usb_register_read(rt2x00dev, TXRX_CSR10, &reg);
 492         rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE,
 493                            !!erp->short_preamble);
 494         rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
 495
 496         rt2500usb_register_write(rt2x00dev, TXRX_CSR11, erp->basic_rates);
 497
 498         rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
 499         rt2x00_set_field16(&reg, TXRX_CSR18_INTERVAL, erp->beacon_int * 4);
 500         rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
 501
 502         rt2500usb_register_write(rt2x00dev, MAC_CSR10, erp->slot_time);
 503         rt2500usb_register_write(rt2x00dev, MAC_CSR11, erp->sifs);
 504         rt2500usb_register_write(rt2x00dev, MAC_CSR12, erp->eifs);
 505 }
 506
 507 static void rt2500usb_config_ant(struct rt2x00_dev *rt2x00dev,
 508                                  struct antenna_setup *ant)
 509 {
 510         u8 r2;
 511         u8 r14;
 512         u16 csr5;
 513         u16 csr6;
 514
 515         /*
 516          * We should never come here because rt2x00lib is supposed
 517          * to catch this and send us the correct antenna explicitely.
 518          */
 519         BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
 520                ant->tx == ANTENNA_SW_DIVERSITY);
 521
 522         rt2500usb_bbp_read(rt2x00dev, 2, &r2);
 523         rt2500usb_bbp_read(rt2x00dev, 14, &r14);
 524         rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
 525         rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
 526
 527         /*
 528          * Configure the TX antenna.
 529          */
 530         switch (ant->tx) {
 531         case ANTENNA_HW_DIVERSITY:
 532                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
 533                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
 534                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
 535                 break;
 536         case ANTENNA_A:
 537                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
 538                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
 539                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
 540                 break;
 541         case ANTENNA_B:
 542         default:
 543                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
 544                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
 545                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
 546                 break;
 547         }
 548
 549         /*
 550          * Configure the RX antenna.
 551          */
 552         switch (ant->rx) {
 553         case ANTENNA_HW_DIVERSITY:
 554                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
 555                 break;
 556         case ANTENNA_A:
 557                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
 558                 break;
 559         case ANTENNA_B:
 560         default:
 561                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
 562                 break;
 563         }
 564
 565         /*
 566          * RT2525E and RT5222 need to flip TX I/Q
 567          */
 568         if (rt2x00_rf(rt2x00dev, RF2525E) || rt2x00_rf(rt2x00dev, RF5222)) {
 569                 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
 570                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
 571                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
 572
 573                 /*
 574                  * RT2525E does not need RX I/Q Flip.
 575                  */
 576                 if (rt2x00_rf(rt2x00dev, RF2525E))
 577                         rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
 578         } else {
 579                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
 580                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
 581         }
 582
 583         rt2500usb_bbp_write(rt2x00dev, 2, r2);
 584         rt2500usb_bbp_write(rt2x00dev, 14, r14);
 585         rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
 586         rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
 587 }
 588
 589 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
 590                                      struct rf_channel *rf, const int txpower)
 591 {
 592         /*
 593          * Set TXpower.
 594          */
 595         rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 596
 597         /*
 598          * For RT2525E we should first set the channel to half band higher.
 599          */
 600         if (rt2x00_rf(rt2x00dev, RF2525E)) {
 601                 static const u32 vals[] = {
 602                         0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
 603                         0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
 604                         0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
 605                         0x00000902, 0x00000906
 606                 };
 607
 608                 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
 609                 if (rf->rf4)
 610                         rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
 611         }
 612
 613         rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
 614         rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
 615         rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
 616         if (rf->rf4)
 617                 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
 618 }
 619
 620 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
 621                                      const int txpower)
 622 {
 623         u32 rf3;
 624
 625         rt2x00_rf_read(rt2x00dev, 3, &rf3);
 626         rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 627         rt2500usb_rf_write(rt2x00dev, 3, rf3);
 628 }
 629
 630 static void rt2500usb_config_ps(struct rt2x00_dev *rt2x00dev,
 631                                 struct rt2x00lib_conf *libconf)
 632 {
 633         enum dev_state state =
 634             (libconf->conf->flags & IEEE80211_CONF_PS) ?
 635                 STATE_SLEEP : STATE_AWAKE;
 636         u16 reg;
 637
 638         if (state == STATE_SLEEP) {
 639                 rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 640                 rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON,
 641                                    rt2x00dev->beacon_int - 20);
 642                 rt2x00_set_field16(&reg, MAC_CSR18_BEACONS_BEFORE_WAKEUP,
 643                                    libconf->conf->listen_interval - 1);
 644
 645                 /* We must first disable autowake before it can be enabled */
 646                 rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 0);
 647                 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 648
 649                 rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 1);
 650                 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 651         } else {
 652                 rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 653                 rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 0);
 654                 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 655         }
 656
 657         rt2x00dev->ops->lib->set_device_state(rt2x00dev, state);
 658 }
 659
 660 static void rt2500usb_config(struct rt2x00_dev *rt2x00dev,
 661                              struct rt2x00lib_conf *libconf,
 662                              const unsigned int flags)
 663 {
 664         if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
 665                 rt2500usb_config_channel(rt2x00dev, &libconf->rf,
 666                                          libconf->conf->power_level);
 667         if ((flags & IEEE80211_CONF_CHANGE_POWER) &&
 668             !(flags & IEEE80211_CONF_CHANGE_CHANNEL))
 669                 rt2500usb_config_txpower(rt2x00dev,
 670                                          libconf->conf->power_level);
 671         if (flags & IEEE80211_CONF_CHANGE_PS)
 672                 rt2500usb_config_ps(rt2x00dev, libconf);
 673 }
 674
 675 /*
 676  * Link tuning
 677  */
 678 static void rt2500usb_link_stats(struct rt2x00_dev *rt2x00dev,
 679                                  struct link_qual *qual)
 680 {
 681         u16 reg;
 682
 683         /*
 684          * Update FCS error count from register.
 685          */
 686         rt2500usb_register_read(rt2x00dev, STA_CSR0, &reg);
 687         qual->rx_failed = rt2x00_get_field16(reg, STA_CSR0_FCS_ERROR);
 688
 689         /*
 690          * Update False CCA count from register.
 691          */
 692         rt2500usb_register_read(rt2x00dev, STA_CSR3, &reg);
 693         qual->false_cca = rt2x00_get_field16(reg, STA_CSR3_FALSE_CCA_ERROR);
 694 }
 695
 696 static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev,
 697                                   struct link_qual *qual)
 698 {
 699         u16 eeprom;
 700         u16 value;
 701
 702         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &eeprom);
 703         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R24_LOW);
 704         rt2500usb_bbp_write(rt2x00dev, 24, value);
 705
 706         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &eeprom);
 707         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R25_LOW);
 708         rt2500usb_bbp_write(rt2x00dev, 25, value);
 709
 710         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &eeprom);
 711         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_R61_LOW);
 712         rt2500usb_bbp_write(rt2x00dev, 61, value);
 713
 714         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &eeprom);
 715         value = rt2x00_get_field16(eeprom, EEPROM_BBPTUNE_VGCUPPER);
 716         rt2500usb_bbp_write(rt2x00dev, 17, value);
 717
 718         qual->vgc_level = value;
 719 }
 720
 721 /*
 722  * Initialization functions.
 723  */
 724 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
 725 {
 726         u16 reg;
 727
 728         rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
 729                                     USB_MODE_TEST, REGISTER_TIMEOUT);
 730         rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
 731                                     0x00f0, REGISTER_TIMEOUT);
 732
 733         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 734         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
 735         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 736
 737         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
 738         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
 739
 740         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 741         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 1);
 742         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 1);
 743         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 744         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 745
 746         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 747         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 748         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 749         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 750         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 751
 752         rt2500usb_register_read(rt2x00dev, TXRX_CSR5, &reg);
 753         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0, 13);
 754         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0_VALID, 1);
 755         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1, 12);
 756         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1_VALID, 1);
 757         rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
 758
 759         rt2500usb_register_read(rt2x00dev, TXRX_CSR6, &reg);
 760         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0, 10);
 761         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0_VALID, 1);
 762         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1, 11);
 763         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1_VALID, 1);
 764         rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
 765
 766         rt2500usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
 767         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0, 7);
 768         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0_VALID, 1);
 769         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1, 6);
 770         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1_VALID, 1);
 771         rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
 772
 773         rt2500usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
 774         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0, 5);
 775         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0_VALID, 1);
 776         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1, 0);
 777         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1_VALID, 0);
 778         rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
 779
 780         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 781         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 0);
 782         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 0);
 783         rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 0);
 784         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
 785         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 786
 787         rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
 788         rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
 789
 790         if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
 791                 return -EBUSY;
 792
 793         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 794         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 795         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 796         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 1);
 797         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 798
 799         if (rt2x00_rev(rt2x00dev) >= RT2570_VERSION_C) {
 800                 rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
 801                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 0);
 802         } else {
 803                 reg = 0;
 804                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 1);
 805                 rt2x00_set_field16(&reg, PHY_CSR2_LNA_MODE, 3);
 806         }
 807         rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
 808
 809         rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
 810         rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
 811         rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
 812         rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
 813
 814         rt2500usb_register_read(rt2x00dev, MAC_CSR8, &reg);
 815         rt2x00_set_field16(&reg, MAC_CSR8_MAX_FRAME_UNIT,
 816                            rt2x00dev->rx->data_size);
 817         rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
 818
 819         rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 820         rt2x00_set_field16(&reg, TXRX_CSR0_ALGORITHM, CIPHER_NONE);
 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_ON_ISR:
1009         case STATE_RADIO_IRQ_OFF:
1010         case STATE_RADIO_IRQ_OFF_ISR:
1011                 /* No support, but no error either */
1012                 break;
1013         case STATE_DEEP_SLEEP:
1014         case STATE_SLEEP:
1015         case STATE_STANDBY:
1016         case STATE_AWAKE:
1017                 retval = rt2500usb_set_state(rt2x00dev, state);
1018                 break;
1019         default:
1020                 retval = -ENOTSUPP;
1021                 break;
1022         }
1023
1024         if (unlikely(retval))
1025                 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
1026                       state, retval);
1027
1028         return retval;
1029 }
1030
1031 /*
1032  * TX descriptor initialization
1033  */
1034 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1035                                     struct sk_buff *skb,
1036                                     struct txentry_desc *txdesc)
1037 {
1038         struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1039         __le32 *txd = (__le32 *) skb->data;
1040         u32 word;
1041
1042         /*
1043          * Start writing the descriptor words.
1044          */
1045         rt2x00_desc_read(txd, 0, &word);
1046         rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, txdesc->retry_limit);
1047         rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1048                            test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1049         rt2x00_set_field32(&word, TXD_W0_ACK,
1050                            test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1051         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1052                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1053         rt2x00_set_field32(&word, TXD_W0_OFDM,
1054                            (txdesc->rate_mode == RATE_MODE_OFDM));
1055         rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1056                            test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
1057         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1058         rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, txdesc->length);
1059         rt2x00_set_field32(&word, TXD_W0_CIPHER, !!txdesc->cipher);
1060         rt2x00_set_field32(&word, TXD_W0_KEY_ID, txdesc->key_idx);
1061         rt2x00_desc_write(txd, 0, word);
1062
1063         rt2x00_desc_read(txd, 1, &word);
1064         rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, txdesc->iv_offset);
1065         rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1066         rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1067         rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1068         rt2x00_desc_write(txd, 1, word);
1069
1070         rt2x00_desc_read(txd, 2, &word);
1071         rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1072         rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1073         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1074         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1075         rt2x00_desc_write(txd, 2, word);
1076
1077         if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) {
1078                 _rt2x00_desc_write(txd, 3, skbdesc->iv[0]);
1079                 _rt2x00_desc_write(txd, 4, skbdesc->iv[1]);
1080         }
1081
1082         /*
1083          * Register descriptor details in skb frame descriptor.
1084          */
1085         skbdesc->flags |= SKBDESC_DESC_IN_SKB;
1086         skbdesc->desc = txd;
1087         skbdesc->desc_len = TXD_DESC_SIZE;
1088 }
1089
1090 /*
1091  * TX data initialization
1092  */
1093 static void rt2500usb_beacondone(struct urb *urb);
1094
1095 static void rt2500usb_write_beacon(struct queue_entry *entry,
1096                                    struct txentry_desc *txdesc)
1097 {
1098         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1099         struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
1100         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1101         int pipe = usb_sndbulkpipe(usb_dev, entry->queue->usb_endpoint);
1102         int length;
1103         u16 reg, reg0;
1104
1105         /*
1106          * Disable beaconing while we are reloading the beacon data,
1107          * otherwise we might be sending out invalid data.
1108          */
1109         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1110         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
1111         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1112
1113         /*
1114          * Add space for the descriptor in front of the skb.
1115          */
1116         skb_push(entry->skb, TXD_DESC_SIZE);
1117         memset(entry->skb->data, 0, TXD_DESC_SIZE);
1118
1119         /*
1120          * Write the TX descriptor for the beacon.
1121          */
1122         rt2500usb_write_tx_desc(rt2x00dev, entry->skb, txdesc);
1123
1124         /*
1125          * Dump beacon to userspace through debugfs.
1126          */
1127         rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
1128
1129         /*
1130          * USB devices cannot blindly pass the skb->len as the
1131          * length of the data to usb_fill_bulk_urb. Pass the skb
1132          * to the driver to determine what the length should be.
1133          */
1134         length = rt2x00dev->ops->lib->get_tx_data_len(entry);
1135
1136         usb_fill_bulk_urb(bcn_priv->urb, usb_dev, pipe,
1137                           entry->skb->data, length, rt2500usb_beacondone,
1138                           entry);
1139
1140         /*
1141          * Second we need to create the guardian byte.
1142          * We only need a single byte, so lets recycle
1143          * the 'flags' field we are not using for beacons.
1144          */
1145         bcn_priv->guardian_data = 0;
1146         usb_fill_bulk_urb(bcn_priv->guardian_urb, usb_dev, pipe,
1147                           &bcn_priv->guardian_data, 1, rt2500usb_beacondone,
1148                           entry);
1149
1150         /*
1151          * Send out the guardian byte.
1152          */
1153         usb_submit_urb(bcn_priv->guardian_urb, GFP_ATOMIC);
1154
1155         /*
1156          * Enable beaconing again.
1157          */
1158         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
1159         rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
1160         reg0 = reg;
1161         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
1162         /*
1163          * Beacon generation will fail initially.
1164          * To prevent this we need to change the TXRX_CSR19
1165          * register several times (reg0 is the same as reg
1166          * except for TXRX_CSR19_BEACON_GEN, which is 0 in reg0
1167          * and 1 in reg).
1168          */
1169         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1170         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
1171         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1172         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
1173         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1174 }
1175
1176 static int rt2500usb_get_tx_data_len(struct queue_entry *entry)
1177 {
1178         int length;
1179
1180         /*
1181          * The length _must_ be a multiple of 2,
1182          * but it must _not_ be a multiple of the USB packet size.
1183          */
1184         length = roundup(entry->skb->len, 2);
1185         length += (2 * !(length % entry->queue->usb_maxpacket));
1186
1187         return length;
1188 }
1189
1190 /*
1191  * RX control handlers
1192  */
1193 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1194                                   struct rxdone_entry_desc *rxdesc)
1195 {
1196         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1197         struct queue_entry_priv_usb *entry_priv = entry->priv_data;
1198         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1199         __le32 *rxd =
1200             (__le32 *)(entry->skb->data +
1201                        (entry_priv->urb->actual_length -
1202                         entry->queue->desc_size));
1203         u32 word0;
1204         u32 word1;
1205
1206         /*
1207          * Copy descriptor to the skbdesc->desc buffer, making it safe from moving of
1208          * frame data in rt2x00usb.
1209          */
1210         memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
1211         rxd = (__le32 *)skbdesc->desc;
1212
1213         /*
1214          * It is now safe to read the descriptor on all architectures.
1215          */
1216         rt2x00_desc_read(rxd, 0, &word0);
1217         rt2x00_desc_read(rxd, 1, &word1);
1218
1219         if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1220                 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1221         if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1222                 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1223
1224         rxdesc->cipher = rt2x00_get_field32(word0, RXD_W0_CIPHER);
1225         if (rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
1226                 rxdesc->cipher_status = RX_CRYPTO_FAIL_KEY;
1227
1228         if (rxdesc->cipher != CIPHER_NONE) {
1229                 _rt2x00_desc_read(rxd, 2, &rxdesc->iv[0]);
1230                 _rt2x00_desc_read(rxd, 3, &rxdesc->iv[1]);
1231                 rxdesc->dev_flags |= RXDONE_CRYPTO_IV;
1232
1233                 /* ICV is located at the end of frame */
1234
1235                 rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
1236                 if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
1237                         rxdesc->flags |= RX_FLAG_DECRYPTED;
1238                 else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
1239                         rxdesc->flags |= RX_FLAG_MMIC_ERROR;
1240         }
1241
1242         /*
1243          * Obtain the status about this packet.
1244          * When frame was received with an OFDM bitrate,
1245          * the signal is the PLCP value. If it was received with
1246          * a CCK bitrate the signal is the rate in 100kbit/s.
1247          */
1248         rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1249         rxdesc->rssi =
1250             rt2x00_get_field32(word1, RXD_W1_RSSI) - rt2x00dev->rssi_offset;
1251         rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1252
1253         if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1254                 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1255         else
1256                 rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
1257         if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1258                 rxdesc->dev_flags |= RXDONE_MY_BSS;
1259
1260         /*
1261          * Adjust the skb memory window to the frame boundaries.
1262          */
1263         skb_trim(entry->skb, rxdesc->size);
1264 }
1265
1266 /*
1267  * Interrupt functions.
1268  */
1269 static void rt2500usb_beacondone(struct urb *urb)
1270 {
1271         struct queue_entry *entry = (struct queue_entry *)urb->context;
1272         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1273
1274         if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1275                 return;
1276
1277         /*
1278          * Check if this was the guardian beacon,
1279          * if that was the case we need to send the real beacon now.
1280          * Otherwise we should free the sk_buffer, the device
1281          * should be doing the rest of the work now.
1282          */
1283         if (bcn_priv->guardian_urb == urb) {
1284                 usb_submit_urb(bcn_priv->urb, GFP_ATOMIC);
1285         } else if (bcn_priv->urb == urb) {
1286                 dev_kfree_skb(entry->skb);
1287                 entry->skb = NULL;
1288         }
1289 }
1290
1291 /*
1292  * Device probe functions.
1293  */
1294 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1295 {
1296         u16 word;
1297         u8 *mac;
1298         u8 bbp;
1299
1300         rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1301
1302         /*
1303          * Start validation of the data that has been read.
1304          */
1305         mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1306         if (!is_valid_ether_addr(mac)) {
1307                 random_ether_addr(mac);
1308                 EEPROM(rt2x00dev, "MAC: %pM\n", mac);
1309         }
1310
1311         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1312         if (word == 0xffff) {
1313                 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1314                 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1315                                    ANTENNA_SW_DIVERSITY);
1316                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1317                                    ANTENNA_SW_DIVERSITY);
1318                 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1319                                    LED_MODE_DEFAULT);
1320                 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1321                 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1322                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1323                 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1324                 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1325         }
1326
1327         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1328         if (word == 0xffff) {
1329                 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1330                 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1331                 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1332                 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1333                 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1334         }
1335
1336         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1337         if (word == 0xffff) {
1338                 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1339                                    DEFAULT_RSSI_OFFSET);
1340                 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1341                 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1342         }
1343
1344         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1345         if (word == 0xffff) {
1346                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1347                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1348                 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1349         }
1350
1351         /*
1352          * Switch lower vgc bound to current BBP R17 value,
1353          * lower the value a bit for better quality.
1354          */
1355         rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1356         bbp -= 6;
1357
1358         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1359         if (word == 0xffff) {
1360                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1361                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1362                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1363                 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1364         } else {
1365                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1366                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1367         }
1368
1369         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1370         if (word == 0xffff) {
1371                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1372                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1373                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1374                 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1375         }
1376
1377         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1378         if (word == 0xffff) {
1379                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1380                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1381                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1382                 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1383         }
1384
1385         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1386         if (word == 0xffff) {
1387                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1388                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1389                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1390                 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1391         }
1392
1393         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1394         if (word == 0xffff) {
1395                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1396                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1397                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1398                 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1399         }
1400
1401         return 0;
1402 }
1403
1404 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1405 {
1406         u16 reg;
1407         u16 value;
1408         u16 eeprom;
1409
1410         /*
1411          * Read EEPROM word for configuration.
1412          */
1413         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1414
1415         /*
1416          * Identify RF chipset.
1417          */
1418         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1419         rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1420         rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1421
1422         if (((reg & 0xfff0) != 0) || ((reg & 0x0000000f) == 0)) {
1423                 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1424                 return -ENODEV;
1425         }
1426
1427         if (!rt2x00_rf(rt2x00dev, RF2522) &&
1428             !rt2x00_rf(rt2x00dev, RF2523) &&
1429             !rt2x00_rf(rt2x00dev, RF2524) &&
1430             !rt2x00_rf(rt2x00dev, RF2525) &&
1431             !rt2x00_rf(rt2x00dev, RF2525E) &&
1432             !rt2x00_rf(rt2x00dev, RF5222)) {
1433                 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1434                 return -ENODEV;
1435         }
1436
1437         /*
1438          * Identify default antenna configuration.
1439          */
1440         rt2x00dev->default_ant.tx =
1441             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1442         rt2x00dev->default_ant.rx =
1443             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1444
1445         /*
1446          * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1447          * I am not 100% sure about this, but the legacy drivers do not
1448          * indicate antenna swapping in software is required when
1449          * diversity is enabled.
1450          */
1451         if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1452                 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1453         if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1454                 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1455
1456         /*
1457          * Store led mode, for correct led behaviour.
1458          */
1459 #ifdef CONFIG_RT2X00_LIB_LEDS
1460         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1461
1462         rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
1463         if (value == LED_MODE_TXRX_ACTIVITY ||
1464             value == LED_MODE_DEFAULT ||
1465             value == LED_MODE_ASUS)
1466                 rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
1467                                    LED_TYPE_ACTIVITY);
1468 #endif /* CONFIG_RT2X00_LIB_LEDS */
1469
1470         /*
1471          * Detect if this device has an hardware controlled radio.
1472          */
1473         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
1474                 __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
1475
1476         /*
1477          * Read the RSSI <-> dBm offset information.
1478          */
1479         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1480         rt2x00dev->rssi_offset =
1481             rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1482
1483         return 0;
1484 }
1485
1486 /*
1487  * RF value list for RF2522
1488  * Supports: 2.4 GHz
1489  */
1490 static const struct rf_channel rf_vals_bg_2522[] = {
1491         { 1,  0x00002050, 0x000c1fda, 0x00000101, 0 },
1492         { 2,  0x00002050, 0x000c1fee, 0x00000101, 0 },
1493         { 3,  0x00002050, 0x000c2002, 0x00000101, 0 },
1494         { 4,  0x00002050, 0x000c2016, 0x00000101, 0 },
1495         { 5,  0x00002050, 0x000c202a, 0x00000101, 0 },
1496         { 6,  0x00002050, 0x000c203e, 0x00000101, 0 },
1497         { 7,  0x00002050, 0x000c2052, 0x00000101, 0 },
1498         { 8,  0x00002050, 0x000c2066, 0x00000101, 0 },
1499         { 9,  0x00002050, 0x000c207a, 0x00000101, 0 },
1500         { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1501         { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1502         { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1503         { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1504         { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1505 };
1506
1507 /*
1508  * RF value list for RF2523
1509  * Supports: 2.4 GHz
1510  */
1511 static const struct rf_channel rf_vals_bg_2523[] = {
1512         { 1,  0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1513         { 2,  0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1514         { 3,  0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1515         { 4,  0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1516         { 5,  0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1517         { 6,  0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1518         { 7,  0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1519         { 8,  0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1520         { 9,  0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1521         { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1522         { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1523         { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1524         { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1525         { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1526 };
1527
1528 /*
1529  * RF value list for RF2524
1530  * Supports: 2.4 GHz
1531  */
1532 static const struct rf_channel rf_vals_bg_2524[] = {
1533         { 1,  0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1534         { 2,  0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1535         { 3,  0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1536         { 4,  0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1537         { 5,  0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1538         { 6,  0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1539         { 7,  0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1540         { 8,  0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1541         { 9,  0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1542         { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1543         { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1544         { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1545         { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1546         { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1547 };
1548
1549 /*
1550  * RF value list for RF2525
1551  * Supports: 2.4 GHz
1552  */
1553 static const struct rf_channel rf_vals_bg_2525[] = {
1554         { 1,  0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1555         { 2,  0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1556         { 3,  0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1557         { 4,  0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1558         { 5,  0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1559         { 6,  0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1560         { 7,  0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1561         { 8,  0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1562         { 9,  0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1563         { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1564         { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1565         { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1566         { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1567         { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1568 };
1569
1570 /*
1571  * RF value list for RF2525e
1572  * Supports: 2.4 GHz
1573  */
1574 static const struct rf_channel rf_vals_bg_2525e[] = {
1575         { 1,  0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1576         { 2,  0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1577         { 3,  0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1578         { 4,  0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1579         { 5,  0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1580         { 6,  0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1581         { 7,  0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1582         { 8,  0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1583         { 9,  0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1584         { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1585         { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1586         { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1587         { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1588         { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1589 };
1590
1591 /*
1592  * RF value list for RF5222
1593  * Supports: 2.4 GHz & 5.2 GHz
1594  */
1595 static const struct rf_channel rf_vals_5222[] = {
1596         { 1,  0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1597         { 2,  0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1598         { 3,  0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1599         { 4,  0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1600         { 5,  0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1601         { 6,  0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1602         { 7,  0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1603         { 8,  0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1604         { 9,  0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1605         { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1606         { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1607         { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1608         { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1609         { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1610
1611         /* 802.11 UNI / HyperLan 2 */
1612         { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1613         { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1614         { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1615         { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1616         { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1617         { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1618         { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1619         { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1620
1621         /* 802.11 HyperLan 2 */
1622         { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1623         { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1624         { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1625         { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1626         { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1627         { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1628         { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1629         { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1630         { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1631         { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1632
1633         /* 802.11 UNII */
1634         { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1635         { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1636         { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1637         { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1638         { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1639 };
1640
1641 static int rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1642 {
1643         struct hw_mode_spec *spec = &rt2x00dev->spec;
1644         struct channel_info *info;
1645         char *tx_power;
1646         unsigned int i;
1647
1648         /*
1649          * Initialize all hw fields.
1650          */
1651         rt2x00dev->hw->flags =
1652             IEEE80211_HW_RX_INCLUDES_FCS |
1653             IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1654             IEEE80211_HW_SIGNAL_DBM |
1655             IEEE80211_HW_SUPPORTS_PS |
1656             IEEE80211_HW_PS_NULLFUNC_STACK;
1657
1658         SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
1659         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1660                                 rt2x00_eeprom_addr(rt2x00dev,
1661                                                    EEPROM_MAC_ADDR_0));
1662
1663         /*
1664          * Initialize hw_mode information.
1665          */
1666         spec->supported_bands = SUPPORT_BAND_2GHZ;
1667         spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1668
1669         if (rt2x00_rf(rt2x00dev, RF2522)) {
1670                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1671                 spec->channels = rf_vals_bg_2522;
1672         } else if (rt2x00_rf(rt2x00dev, RF2523)) {
1673                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1674                 spec->channels = rf_vals_bg_2523;
1675         } else if (rt2x00_rf(rt2x00dev, RF2524)) {
1676                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1677                 spec->channels = rf_vals_bg_2524;
1678         } else if (rt2x00_rf(rt2x00dev, RF2525)) {
1679                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1680                 spec->channels = rf_vals_bg_2525;
1681         } else if (rt2x00_rf(rt2x00dev, RF2525E)) {
1682                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1683                 spec->channels = rf_vals_bg_2525e;
1684         } else if (rt2x00_rf(rt2x00dev, RF5222)) {
1685                 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1686                 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1687                 spec->channels = rf_vals_5222;
1688         }
1689
1690         /*
1691          * Create channel information array
1692          */
1693         info = kzalloc(spec->num_channels * sizeof(*info), GFP_KERNEL);
1694         if (!info)
1695                 return -ENOMEM;
1696
1697         spec->channels_info = info;
1698
1699         tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1700         for (i = 0; i < 14; i++)
1701                 info[i].tx_power1 = TXPOWER_FROM_DEV(tx_power[i]);
1702
1703         if (spec->num_channels > 14) {
1704                 for (i = 14; i < spec->num_channels; i++)
1705                         info[i].tx_power1 = DEFAULT_TXPOWER;
1706         }
1707
1708         return 0;
1709 }
1710
1711 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1712 {
1713         int retval;
1714
1715         /*
1716          * Allocate eeprom data.
1717          */
1718         retval = rt2500usb_validate_eeprom(rt2x00dev);
1719         if (retval)
1720                 return retval;
1721
1722         retval = rt2500usb_init_eeprom(rt2x00dev);
1723         if (retval)
1724                 return retval;
1725
1726         /*
1727          * Initialize hw specifications.
1728          */
1729         retval = rt2500usb_probe_hw_mode(rt2x00dev);
1730         if (retval)
1731                 return retval;
1732
1733         /*
1734          * This device requires the atim queue
1735          */
1736         __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1737         __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1738         if (!modparam_nohwcrypt) {
1739                 __set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
1740                 __set_bit(DRIVER_REQUIRE_COPY_IV, &rt2x00dev->flags);
1741         }
1742         __set_bit(DRIVER_SUPPORT_WATCHDOG, &rt2x00dev->flags);
1743
1744         /*
1745          * Set the rssi offset.
1746          */
1747         rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1748
1749         return 0;
1750 }
1751
1752 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1753         .tx                     = rt2x00mac_tx,
1754         .start                  = rt2x00mac_start,
1755         .stop                   = rt2x00mac_stop,
1756         .add_interface          = rt2x00mac_add_interface,
1757         .remove_interface       = rt2x00mac_remove_interface,
1758         .config                 = rt2x00mac_config,
1759         .configure_filter       = rt2x00mac_configure_filter,
1760         .set_tim                = rt2x00mac_set_tim,
1761         .set_key                = rt2x00mac_set_key,
1762         .sw_scan_start          = rt2x00mac_sw_scan_start,
1763         .sw_scan_complete       = rt2x00mac_sw_scan_complete,
1764         .get_stats              = rt2x00mac_get_stats,
1765         .bss_info_changed       = rt2x00mac_bss_info_changed,
1766         .conf_tx                = rt2x00mac_conf_tx,
1767         .rfkill_poll            = rt2x00mac_rfkill_poll,
1768 };
1769
1770 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1771         .probe_hw               = rt2500usb_probe_hw,
1772         .initialize             = rt2x00usb_initialize,
1773         .uninitialize           = rt2x00usb_uninitialize,
1774         .clear_entry            = rt2x00usb_clear_entry,
1775         .set_device_state       = rt2500usb_set_device_state,
1776         .rfkill_poll            = rt2500usb_rfkill_poll,
1777         .link_stats             = rt2500usb_link_stats,
1778         .reset_tuner            = rt2500usb_reset_tuner,
1779         .watchdog               = rt2x00usb_watchdog,
1780         .write_tx_desc          = rt2500usb_write_tx_desc,
1781         .write_beacon           = rt2500usb_write_beacon,
1782         .get_tx_data_len        = rt2500usb_get_tx_data_len,
1783         .kick_tx_queue          = rt2x00usb_kick_tx_queue,
1784         .kill_tx_queue          = rt2x00usb_kill_tx_queue,
1785         .fill_rxdone            = rt2500usb_fill_rxdone,
1786         .config_shared_key      = rt2500usb_config_key,
1787         .config_pairwise_key    = rt2500usb_config_key,
1788         .config_filter          = rt2500usb_config_filter,
1789         .config_intf            = rt2500usb_config_intf,
1790         .config_erp             = rt2500usb_config_erp,
1791         .config_ant             = rt2500usb_config_ant,
1792         .config                 = rt2500usb_config,
1793 };
1794
1795 static const struct data_queue_desc rt2500usb_queue_rx = {
1796         .entry_num              = RX_ENTRIES,
1797         .data_size              = DATA_FRAME_SIZE,
1798         .desc_size              = RXD_DESC_SIZE,
1799         .priv_size              = sizeof(struct queue_entry_priv_usb),
1800 };
1801
1802 static const struct data_queue_desc rt2500usb_queue_tx = {
1803         .entry_num              = TX_ENTRIES,
1804         .data_size              = DATA_FRAME_SIZE,
1805         .desc_size              = TXD_DESC_SIZE,
1806         .priv_size              = sizeof(struct queue_entry_priv_usb),
1807 };
1808
1809 static const struct data_queue_desc rt2500usb_queue_bcn = {
1810         .entry_num              = BEACON_ENTRIES,
1811         .data_size              = MGMT_FRAME_SIZE,
1812         .desc_size              = TXD_DESC_SIZE,
1813         .priv_size              = sizeof(struct queue_entry_priv_usb_bcn),
1814 };
1815
1816 static const struct data_queue_desc rt2500usb_queue_atim = {
1817         .entry_num              = ATIM_ENTRIES,
1818         .data_size              = DATA_FRAME_SIZE,
1819         .desc_size              = TXD_DESC_SIZE,
1820         .priv_size              = sizeof(struct queue_entry_priv_usb),
1821 };
1822
1823 static const struct rt2x00_ops rt2500usb_ops = {
1824         .name                   = KBUILD_MODNAME,
1825         .max_sta_intf           = 1,
1826         .max_ap_intf            = 1,
1827         .eeprom_size            = EEPROM_SIZE,
1828         .rf_size                = RF_SIZE,
1829         .tx_queues              = NUM_TX_QUEUES,
1830         .extra_tx_headroom      = TXD_DESC_SIZE,
1831         .rx                     = &rt2500usb_queue_rx,
1832         .tx                     = &rt2500usb_queue_tx,
1833         .bcn                    = &rt2500usb_queue_bcn,
1834         .atim                   = &rt2500usb_queue_atim,
1835         .lib                    = &rt2500usb_rt2x00_ops,
1836         .hw                     = &rt2500usb_mac80211_ops,
1837 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1838         .debugfs                = &rt2500usb_rt2x00debug,
1839 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1840 };
1841
1842 /*
1843  * rt2500usb module information.
1844  */
1845 static struct usb_device_id rt2500usb_device_table[] = {
1846         /* ASUS */
1847         { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1848         { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1849         /* Belkin */
1850         { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1851         { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1852         { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1853         /* Cisco Systems */
1854         { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1855         { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1856         { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1857         /* CNet */
1858         { USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt2500usb_ops) },
1859         /* Conceptronic */
1860         { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
1861         /* D-LINK */
1862         { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
1863         /* Gigabyte */
1864         { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
1865         { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
1866         /* Hercules */
1867         { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
1868         /* Melco */
1869         { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
1870         { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
1871         { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
1872         { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
1873         { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
1874         /* MSI */
1875         { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
1876         { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
1877         { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
1878         /* Ralink */
1879         { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1880         { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
1881         { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
1882         { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1883         /* Sagem */
1884         { USB_DEVICE(0x079b, 0x004b), USB_DEVICE_DATA(&rt2500usb_ops) },
1885         /* Siemens */
1886         { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
1887         /* SMC */
1888         { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
1889         /* Spairon */
1890         { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
1891         /* SURECOM */
1892         { USB_DEVICE(0x0769, 0x11f3), USB_DEVICE_DATA(&rt2500usb_ops) },
1893         /* Trust */
1894         { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
1895         /* VTech */
1896         { USB_DEVICE(0x0f88, 0x3012), USB_DEVICE_DATA(&rt2500usb_ops) },
1897         /* Zinwell */
1898         { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
1899         { 0, }
1900 };
1901
1902 MODULE_AUTHOR(DRV_PROJECT);
1903 MODULE_VERSION(DRV_VERSION);
1904 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
1905 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
1906 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
1907 MODULE_LICENSE("GPL");
1908
1909 static struct usb_driver rt2500usb_driver = {
1910         .name           = KBUILD_MODNAME,
1911         .id_table       = rt2500usb_device_table,
1912         .probe          = rt2x00usb_probe,
1913         .disconnect     = rt2x00usb_disconnect,
1914         .suspend        = rt2x00usb_suspend,
1915         .resume         = rt2x00usb_resume,
1916 };
1917
1918 static int __init rt2500usb_init(void)
1919 {
1920         return usb_register(&rt2500usb_driver);
1921 }
1922
1923 static void __exit rt2500usb_exit(void)
1924 {
1925         usb_deregister(&rt2500usb_driver);
1926 }
1927
1928 module_init(rt2500usb_init);
1929 module_exit(rt2500usb_exit);