drivers/net/wireless/rt2x00/rt2500usb.c

   1 /*
   2         Copyright (C) 2004 - 2009 rt2x00 SourceForge Project
   3         <http://rt2x00.serialmonkey.com>
   4
   5         This program is free software; you can redistribute it and/or modify
   6         it under the terms of the GNU General Public License as published by
   7         the Free Software Foundation; either version 2 of the License, or
   8         (at your option) any later version.
   9
  10         This program is distributed in the hope that it will be useful,
  11         but WITHOUT ANY WARRANTY; without even the implied warranty of
  12         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13         GNU General Public License for more details.
  14
  15         You should have received a copy of the GNU General Public License
  16         along with this program; if not, write to the
  17         Free Software Foundation, Inc.,
  18         59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 /*
  22         Module: rt2500usb
  23         Abstract: rt2500usb device specific routines.
  24         Supported chipsets: RT2570.
  25  */
  26
  27 #include <linux/delay.h>
  28 #include <linux/etherdevice.h>
  29 #include <linux/init.h>
  30 #include <linux/kernel.h>
  31 #include <linux/module.h>
  32 #include <linux/usb.h>
  33
  34 #include "rt2x00.h"
  35 #include "rt2x00usb.h"
  36 #include "rt2500usb.h"
  37
  38 /*
  39  * Allow hardware encryption to be disabled.
  40  */
  41 static int modparam_nohwcrypt = 0;
  42 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
  43 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
  44
  45 /*
  46  * Register access.
  47  * All access to the CSR registers will go through the methods
  48  * rt2500usb_register_read and rt2500usb_register_write.
  49  * BBP and RF register require indirect register access,
  50  * and use the CSR registers BBPCSR and RFCSR to achieve this.
  51  * These indirect registers work with busy bits,
  52  * and we will try maximal REGISTER_BUSY_COUNT times to access
  53  * the register while taking a REGISTER_BUSY_DELAY us delay
  54  * between each attampt. When the busy bit is still set at that time,
  55  * the access attempt is considered to have failed,
  56  * and we will print an error.
  57  * If the csr_mutex is already held then the _lock variants must
  58  * be used instead.
  59  */
  60 static inline void rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
  61                                            const unsigned int offset,
  62                                            u16 *value)
  63 {
  64         __le16 reg;
  65         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
  66                                       USB_VENDOR_REQUEST_IN, offset,
  67                                       &reg, sizeof(reg), REGISTER_TIMEOUT);
  68         *value = le16_to_cpu(reg);
  69 }
  70
  71 static inline void rt2500usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
  72                                                 const unsigned int offset,
  73                                                 u16 *value)
  74 {
  75         __le16 reg;
  76         rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
  77                                        USB_VENDOR_REQUEST_IN, offset,
  78                                        &reg, sizeof(reg), REGISTER_TIMEOUT);
  79         *value = le16_to_cpu(reg);
  80 }
  81
  82 static inline void rt2500usb_register_multiread(struct rt2x00_dev *rt2x00dev,
  83                                                 const unsigned int offset,
  84                                                 void *value, const u16 length)
  85 {
  86         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
  87                                       USB_VENDOR_REQUEST_IN, offset,
  88                                       value, length,
  89                                       REGISTER_TIMEOUT16(length));
  90 }
  91
  92 static inline void rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
  93                                             const unsigned int offset,
  94                                             u16 value)
  95 {
  96         __le16 reg = cpu_to_le16(value);
  97         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
  98                                       USB_VENDOR_REQUEST_OUT, offset,
  99                                       &reg, sizeof(reg), REGISTER_TIMEOUT);
 100 }
 101
 102 static inline void rt2500usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
 103                                                  const unsigned int offset,
 104                                                  u16 value)
 105 {
 106         __le16 reg = cpu_to_le16(value);
 107         rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
 108                                        USB_VENDOR_REQUEST_OUT, offset,
 109                                        &reg, sizeof(reg), REGISTER_TIMEOUT);
 110 }
 111
 112 static inline void rt2500usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
 113                                                  const unsigned int offset,
 114                                                  void *value, const u16 length)
 115 {
 116         rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
 117                                       USB_VENDOR_REQUEST_OUT, offset,
 118                                       value, length,
 119                                       REGISTER_TIMEOUT16(length));
 120 }
 121
 122 static int rt2500usb_regbusy_read(struct rt2x00_dev *rt2x00dev,
 123                                   const unsigned int offset,
 124                                   struct rt2x00_field16 field,
 125                                   u16 *reg)
 126 {
 127         unsigned int i;
 128
 129         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 130                 rt2500usb_register_read_lock(rt2x00dev, offset, reg);
 131                 if (!rt2x00_get_field16(*reg, field))
 132                         return 1;
 133                 udelay(REGISTER_BUSY_DELAY);
 134         }
 135
 136         ERROR(rt2x00dev, "Indirect register access failed: "
 137               "offset=0x%.08x, value=0x%.08x\n", offset, *reg);
 138         *reg = ~0;
 139
 140         return 0;
 141 }
 142
 143 #define WAIT_FOR_BBP(__dev, __reg) \
 144         rt2500usb_regbusy_read((__dev), PHY_CSR8, PHY_CSR8_BUSY, (__reg))
 145 #define WAIT_FOR_RF(__dev, __reg) \
 146         rt2500usb_regbusy_read((__dev), PHY_CSR10, PHY_CSR10_RF_BUSY, (__reg))
 147
 148 static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev,
 149                                 const unsigned int word, const u8 value)
 150 {
 151         u16 reg;
 152
 153         mutex_lock(&rt2x00dev->csr_mutex);
 154
 155         /*
 156          * Wait until the BBP becomes available, afterwards we
 157          * can safely write the new data into the register.
 158          */
 159         if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
 160                 reg = 0;
 161                 rt2x00_set_field16(&reg, PHY_CSR7_DATA, value);
 162                 rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
 163                 rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 0);
 164
 165                 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
 166         }
 167
 168         mutex_unlock(&rt2x00dev->csr_mutex);
 169 }
 170
 171 static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev,
 172                                const unsigned int word, u8 *value)
 173 {
 174         u16 reg;
 175
 176         mutex_lock(&rt2x00dev->csr_mutex);
 177
 178         /*
 179          * Wait until the BBP becomes available, afterwards we
 180          * can safely write the read request into the register.
 181          * After the data has been written, we wait until hardware
 182          * returns the correct value, if at any time the register
 183          * doesn't become available in time, reg will be 0xffffffff
 184          * which means we return 0xff to the caller.
 185          */
 186         if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
 187                 reg = 0;
 188                 rt2x00_set_field16(&reg, PHY_CSR7_REG_ID, word);
 189                 rt2x00_set_field16(&reg, PHY_CSR7_READ_CONTROL, 1);
 190
 191                 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg);
 192
 193                 if (WAIT_FOR_BBP(rt2x00dev, &reg))
 194                         rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, &reg);
 195         }
 196
 197         *value = rt2x00_get_field16(reg, PHY_CSR7_DATA);
 198
 199         mutex_unlock(&rt2x00dev->csr_mutex);
 200 }
 201
 202 static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev,
 203                                const unsigned int word, const u32 value)
 204 {
 205         u16 reg;
 206
 207         mutex_lock(&rt2x00dev->csr_mutex);
 208
 209         /*
 210          * Wait until the RF becomes available, afterwards we
 211          * can safely write the new data into the register.
 212          */
 213         if (WAIT_FOR_RF(rt2x00dev, &reg)) {
 214                 reg = 0;
 215                 rt2x00_set_field16(&reg, PHY_CSR9_RF_VALUE, value);
 216                 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR9, reg);
 217
 218                 reg = 0;
 219                 rt2x00_set_field16(&reg, PHY_CSR10_RF_VALUE, value >> 16);
 220                 rt2x00_set_field16(&reg, PHY_CSR10_RF_NUMBER_OF_BITS, 20);
 221                 rt2x00_set_field16(&reg, PHY_CSR10_RF_IF_SELECT, 0);
 222                 rt2x00_set_field16(&reg, PHY_CSR10_RF_BUSY, 1);
 223
 224                 rt2500usb_register_write_lock(rt2x00dev, PHY_CSR10, reg);
 225                 rt2x00_rf_write(rt2x00dev, word, value);
 226         }
 227
 228         mutex_unlock(&rt2x00dev->csr_mutex);
 229 }
 230
 231 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 232 static void _rt2500usb_register_read(struct rt2x00_dev *rt2x00dev,
 233                                      const unsigned int offset,
 234                                      u32 *value)
 235 {
 236         rt2500usb_register_read(rt2x00dev, offset, (u16 *)value);
 237 }
 238
 239 static void _rt2500usb_register_write(struct rt2x00_dev *rt2x00dev,
 240                                       const unsigned int offset,
 241                                       u32 value)
 242 {
 243         rt2500usb_register_write(rt2x00dev, offset, value);
 244 }
 245
 246 static const struct rt2x00debug rt2500usb_rt2x00debug = {
 247         .owner  = THIS_MODULE,
 248         .csr    = {
 249                 .read           = _rt2500usb_register_read,
 250                 .write          = _rt2500usb_register_write,
 251                 .flags          = RT2X00DEBUGFS_OFFSET,
 252                 .word_base      = CSR_REG_BASE,
 253                 .word_size      = sizeof(u16),
 254                 .word_count     = CSR_REG_SIZE / sizeof(u16),
 255         },
 256         .eeprom = {
 257                 .read           = rt2x00_eeprom_read,
 258                 .write          = rt2x00_eeprom_write,
 259                 .word_base      = EEPROM_BASE,
 260                 .word_size      = sizeof(u16),
 261                 .word_count     = EEPROM_SIZE / sizeof(u16),
 262         },
 263         .bbp    = {
 264                 .read           = rt2500usb_bbp_read,
 265                 .write          = rt2500usb_bbp_write,
 266                 .word_base      = BBP_BASE,
 267                 .word_size      = sizeof(u8),
 268                 .word_count     = BBP_SIZE / sizeof(u8),
 269         },
 270         .rf     = {
 271                 .read           = rt2x00_rf_read,
 272                 .write          = rt2500usb_rf_write,
 273                 .word_base      = RF_BASE,
 274                 .word_size      = sizeof(u32),
 275                 .word_count     = RF_SIZE / sizeof(u32),
 276         },
 277 };
 278 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 279
 280 static int rt2500usb_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 281 {
 282         u16 reg;
 283
 284         rt2500usb_register_read(rt2x00dev, MAC_CSR19, &reg);
 285         return rt2x00_get_field32(reg, MAC_CSR19_BIT7);
 286 }
 287
 288 #ifdef CONFIG_RT2X00_LIB_LEDS
 289 static void rt2500usb_brightness_set(struct led_classdev *led_cdev,
 290                                      enum led_brightness brightness)
 291 {
 292         struct rt2x00_led *led =
 293             container_of(led_cdev, struct rt2x00_led, led_dev);
 294         unsigned int enabled = brightness != LED_OFF;
 295         u16 reg;
 296
 297         rt2500usb_register_read(led->rt2x00dev, MAC_CSR20, &reg);
 298
 299         if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
 300                 rt2x00_set_field16(&reg, MAC_CSR20_LINK, enabled);
 301         else if (led->type == LED_TYPE_ACTIVITY)
 302                 rt2x00_set_field16(&reg, MAC_CSR20_ACTIVITY, enabled);
 303
 304         rt2500usb_register_write(led->rt2x00dev, MAC_CSR20, reg);
 305 }
 306
 307 static int rt2500usb_blink_set(struct led_classdev *led_cdev,
 308                                unsigned long *delay_on,
 309                                unsigned long *delay_off)
 310 {
 311         struct rt2x00_led *led =
 312             container_of(led_cdev, struct rt2x00_led, led_dev);
 313         u16 reg;
 314
 315         rt2500usb_register_read(led->rt2x00dev, MAC_CSR21, &reg);
 316         rt2x00_set_field16(&reg, MAC_CSR21_ON_PERIOD, *delay_on);
 317         rt2x00_set_field16(&reg, MAC_CSR21_OFF_PERIOD, *delay_off);
 318         rt2500usb_register_write(led->rt2x00dev, MAC_CSR21, reg);
 319
 320         return 0;
 321 }
 322
 323 static void rt2500usb_init_led(struct rt2x00_dev *rt2x00dev,
 324                                struct rt2x00_led *led,
 325                                enum led_type type)
 326 {
 327         led->rt2x00dev = rt2x00dev;
 328         led->type = type;
 329         led->led_dev.brightness_set = rt2500usb_brightness_set;
 330         led->led_dev.blink_set = rt2500usb_blink_set;
 331         led->flags = LED_INITIALIZED;
 332 }
 333 #endif /* CONFIG_RT2X00_LIB_LEDS */
 334
 335 /*
 336  * Configuration handlers.
 337  */
 338
 339 /*
 340  * rt2500usb does not differentiate between shared and pairwise
 341  * keys, so we should use the same function for both key types.
 342  */
 343 static int rt2500usb_config_key(struct rt2x00_dev *rt2x00dev,
 344                                 struct rt2x00lib_crypto *crypto,
 345                                 struct ieee80211_key_conf *key)
 346 {
 347         int timeout;
 348         u32 mask;
 349         u16 reg;
 350
 351         if (crypto->cmd == SET_KEY) {
 352                 /*
 353                  * Pairwise key will always be entry 0, but this
 354                  * could collide with a shared key on the same
 355                  * position...
 356                  */
 357                 mask = TXRX_CSR0_KEY_ID.bit_mask;
 358
 359                 rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 360                 reg &= mask;
 361
 362                 if (reg && reg == mask)
 363                         return -ENOSPC;
 364
 365                 reg = rt2x00_get_field16(reg, TXRX_CSR0_KEY_ID);
 366
 367                 key->hw_key_idx += reg ? ffz(reg) : 0;
 368
 369                 /*
 370                  * The encryption key doesn't fit within the CSR cache,
 371                  * this means we should allocate it seperately and use
 372                  * rt2x00usb_vendor_request() to send the key to the hardware.
 373                  */
 374                 reg = KEY_ENTRY(key->hw_key_idx);
 375                 timeout = REGISTER_TIMEOUT32(sizeof(crypto->key));
 376                 rt2x00usb_vendor_request_large_buff(rt2x00dev, USB_MULTI_WRITE,
 377                                                     USB_VENDOR_REQUEST_OUT, reg,
 378                                                     crypto->key,
 379                                                     sizeof(crypto->key),
 380                                                     timeout);
 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 seperately 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_CSR1, &reg);
 492         rt2x00_set_field16(&reg, TXRX_CSR1_ACK_TIMEOUT, erp->ack_timeout);
 493         rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
 494
 495         rt2500usb_register_read(rt2x00dev, TXRX_CSR10, &reg);
 496         rt2x00_set_field16(&reg, TXRX_CSR10_AUTORESPOND_PREAMBLE,
 497                            !!erp->short_preamble);
 498         rt2500usb_register_write(rt2x00dev, TXRX_CSR10, reg);
 499
 500         rt2500usb_register_write(rt2x00dev, TXRX_CSR11, erp->basic_rates);
 501
 502         rt2500usb_register_read(rt2x00dev, TXRX_CSR18, &reg);
 503         rt2x00_set_field16(&reg, TXRX_CSR18_INTERVAL, erp->beacon_int * 4);
 504         rt2500usb_register_write(rt2x00dev, TXRX_CSR18, reg);
 505
 506         rt2500usb_register_write(rt2x00dev, MAC_CSR10, erp->slot_time);
 507         rt2500usb_register_write(rt2x00dev, MAC_CSR11, erp->sifs);
 508         rt2500usb_register_write(rt2x00dev, MAC_CSR12, erp->eifs);
 509 }
 510
 511 static void rt2500usb_config_ant(struct rt2x00_dev *rt2x00dev,
 512                                  struct antenna_setup *ant)
 513 {
 514         u8 r2;
 515         u8 r14;
 516         u16 csr5;
 517         u16 csr6;
 518
 519         /*
 520          * We should never come here because rt2x00lib is supposed
 521          * to catch this and send us the correct antenna explicitely.
 522          */
 523         BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
 524                ant->tx == ANTENNA_SW_DIVERSITY);
 525
 526         rt2500usb_bbp_read(rt2x00dev, 2, &r2);
 527         rt2500usb_bbp_read(rt2x00dev, 14, &r14);
 528         rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
 529         rt2500usb_register_read(rt2x00dev, PHY_CSR6, &csr6);
 530
 531         /*
 532          * Configure the TX antenna.
 533          */
 534         switch (ant->tx) {
 535         case ANTENNA_HW_DIVERSITY:
 536                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 1);
 537                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 1);
 538                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 1);
 539                 break;
 540         case ANTENNA_A:
 541                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 0);
 542                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
 543                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
 544                 break;
 545         case ANTENNA_B:
 546         default:
 547                 rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
 548                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
 549                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
 550                 break;
 551         }
 552
 553         /*
 554          * Configure the RX antenna.
 555          */
 556         switch (ant->rx) {
 557         case ANTENNA_HW_DIVERSITY:
 558                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 1);
 559                 break;
 560         case ANTENNA_A:
 561                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
 562                 break;
 563         case ANTENNA_B:
 564         default:
 565                 rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
 566                 break;
 567         }
 568
 569         /*
 570          * RT2525E and RT5222 need to flip TX I/Q
 571          */
 572         if (rt2x00_rf(&rt2x00dev->chip, RF2525E) ||
 573             rt2x00_rf(&rt2x00dev->chip, RF5222)) {
 574                 rt2x00_set_field8(&r2, BBP_R2_TX_IQ_FLIP, 1);
 575                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 1);
 576                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 1);
 577
 578                 /*
 579                  * RT2525E does not need RX I/Q Flip.
 580                  */
 581                 if (rt2x00_rf(&rt2x00dev->chip, RF2525E))
 582                         rt2x00_set_field8(&r14, BBP_R14_RX_IQ_FLIP, 0);
 583         } else {
 584                 rt2x00_set_field16(&csr5, PHY_CSR5_CCK_FLIP, 0);
 585                 rt2x00_set_field16(&csr6, PHY_CSR6_OFDM_FLIP, 0);
 586         }
 587
 588         rt2500usb_bbp_write(rt2x00dev, 2, r2);
 589         rt2500usb_bbp_write(rt2x00dev, 14, r14);
 590         rt2500usb_register_write(rt2x00dev, PHY_CSR5, csr5);
 591         rt2500usb_register_write(rt2x00dev, PHY_CSR6, csr6);
 592 }
 593
 594 static void rt2500usb_config_channel(struct rt2x00_dev *rt2x00dev,
 595                                      struct rf_channel *rf, const int txpower)
 596 {
 597         /*
 598          * Set TXpower.
 599          */
 600         rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 601
 602         /*
 603          * For RT2525E we should first set the channel to half band higher.
 604          */
 605         if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
 606                 static const u32 vals[] = {
 607                         0x000008aa, 0x000008ae, 0x000008ae, 0x000008b2,
 608                         0x000008b2, 0x000008b6, 0x000008b6, 0x000008ba,
 609                         0x000008ba, 0x000008be, 0x000008b7, 0x00000902,
 610                         0x00000902, 0x00000906
 611                 };
 612
 613                 rt2500usb_rf_write(rt2x00dev, 2, vals[rf->channel - 1]);
 614                 if (rf->rf4)
 615                         rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
 616         }
 617
 618         rt2500usb_rf_write(rt2x00dev, 1, rf->rf1);
 619         rt2500usb_rf_write(rt2x00dev, 2, rf->rf2);
 620         rt2500usb_rf_write(rt2x00dev, 3, rf->rf3);
 621         if (rf->rf4)
 622                 rt2500usb_rf_write(rt2x00dev, 4, rf->rf4);
 623 }
 624
 625 static void rt2500usb_config_txpower(struct rt2x00_dev *rt2x00dev,
 626                                      const int txpower)
 627 {
 628         u32 rf3;
 629
 630         rt2x00_rf_read(rt2x00dev, 3, &rf3);
 631         rt2x00_set_field32(&rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 632         rt2500usb_rf_write(rt2x00dev, 3, rf3);
 633 }
 634
 635 static void rt2500usb_config_ps(struct rt2x00_dev *rt2x00dev,
 636                                 struct rt2x00lib_conf *libconf)
 637 {
 638         enum dev_state state =
 639             (libconf->conf->flags & IEEE80211_CONF_PS) ?
 640                 STATE_SLEEP : STATE_AWAKE;
 641         u16 reg;
 642
 643         if (state == STATE_SLEEP) {
 644                 rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 645                 rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON,
 646                                    rt2x00dev->beacon_int - 20);
 647                 rt2x00_set_field16(&reg, MAC_CSR18_BEACONS_BEFORE_WAKEUP,
 648                                    libconf->conf->listen_interval - 1);
 649
 650                 /* We must first disable autowake before it can be enabled */
 651                 rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 0);
 652                 rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 653
 654                 rt2x00_set_field16(&reg, MAC_CSR18_AUTO_WAKE, 1);
 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  * NOTE: This function is directly ported from legacy driver, but
 724  * despite it being declared it was never called. Although link tuning
 725  * sounds like a good idea, and usually works well for the other drivers,
 726  * it does _not_ work with rt2500usb. Enabling this function will result
 727  * in TX capabilities only until association kicks in. Immediately
 728  * after the successful association all TX frames will be kept in the
 729  * hardware queue and never transmitted.
 730  */
 731 #if 0
 732 static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
 733 {
 734         int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
 735         u16 bbp_thresh;
 736         u16 vgc_bound;
 737         u16 sens;
 738         u16 r24;
 739         u16 r25;
 740         u16 r61;
 741         u16 r17_sens;
 742         u8 r17;
 743         u8 up_bound;
 744         u8 low_bound;
 745
 746         /*
 747          * Read current r17 value, as well as the sensitivity values
 748          * for the r17 register.
 749          */
 750         rt2500usb_bbp_read(rt2x00dev, 17, &r17);
 751         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &r17_sens);
 752
 753         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &vgc_bound);
 754         up_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCUPPER);
 755         low_bound = rt2x00_get_field16(vgc_bound, EEPROM_BBPTUNE_VGCLOWER);
 756
 757         /*
 758          * If we are not associated, we should go straight to the
 759          * dynamic CCA tuning.
 760          */
 761         if (!rt2x00dev->intf_associated)
 762                 goto dynamic_cca_tune;
 763
 764         /*
 765          * Determine the BBP tuning threshold and correctly
 766          * set BBP 24, 25 and 61.
 767          */
 768         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &bbp_thresh);
 769         bbp_thresh = rt2x00_get_field16(bbp_thresh, EEPROM_BBPTUNE_THRESHOLD);
 770
 771         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &r24);
 772         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &r25);
 773         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &r61);
 774
 775         if ((rssi + bbp_thresh) > 0) {
 776                 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_HIGH);
 777                 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_HIGH);
 778                 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_HIGH);
 779         } else {
 780                 r24 = rt2x00_get_field16(r24, EEPROM_BBPTUNE_R24_LOW);
 781                 r25 = rt2x00_get_field16(r25, EEPROM_BBPTUNE_R25_LOW);
 782                 r61 = rt2x00_get_field16(r61, EEPROM_BBPTUNE_R61_LOW);
 783         }
 784
 785         rt2500usb_bbp_write(rt2x00dev, 24, r24);
 786         rt2500usb_bbp_write(rt2x00dev, 25, r25);
 787         rt2500usb_bbp_write(rt2x00dev, 61, r61);
 788
 789         /*
 790          * A too low RSSI will cause too much false CCA which will
 791          * then corrupt the R17 tuning. To remidy this the tuning should
 792          * be stopped (While making sure the R17 value will not exceed limits)
 793          */
 794         if (rssi >= -40) {
 795                 if (r17 != 0x60)
 796                         rt2500usb_bbp_write(rt2x00dev, 17, 0x60);
 797                 return;
 798         }
 799
 800         /*
 801          * Special big-R17 for short distance
 802          */
 803         if (rssi >= -58) {
 804                 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_LOW);
 805                 if (r17 != sens)
 806                         rt2500usb_bbp_write(rt2x00dev, 17, sens);
 807                 return;
 808         }
 809
 810         /*
 811          * Special mid-R17 for middle distance
 812          */
 813         if (rssi >= -74) {
 814                 sens = rt2x00_get_field16(r17_sens, EEPROM_BBPTUNE_R17_HIGH);
 815                 if (r17 != sens)
 816                         rt2500usb_bbp_write(rt2x00dev, 17, sens);
 817                 return;
 818         }
 819
 820         /*
 821          * Leave short or middle distance condition, restore r17
 822          * to the dynamic tuning range.
 823          */
 824         low_bound = 0x32;
 825         if (rssi < -77)
 826                 up_bound -= (-77 - rssi);
 827
 828         if (up_bound < low_bound)
 829                 up_bound = low_bound;
 830
 831         if (r17 > up_bound) {
 832                 rt2500usb_bbp_write(rt2x00dev, 17, up_bound);
 833                 rt2x00dev->link.vgc_level = up_bound;
 834                 return;
 835         }
 836
 837 dynamic_cca_tune:
 838
 839         /*
 840          * R17 is inside the dynamic tuning range,
 841          * start tuning the link based on the false cca counter.
 842          */
 843         if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
 844                 rt2500usb_bbp_write(rt2x00dev, 17, ++r17);
 845                 rt2x00dev->link.vgc_level = r17;
 846         } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
 847                 rt2500usb_bbp_write(rt2x00dev, 17, --r17);
 848                 rt2x00dev->link.vgc_level = r17;
 849         }
 850 }
 851 #else
 852 #define rt2500usb_link_tuner    NULL
 853 #endif
 854
 855 /*
 856  * Initialization functions.
 857  */
 858 static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
 859 {
 860         u16 reg;
 861
 862         rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0x0001,
 863                                     USB_MODE_TEST, REGISTER_TIMEOUT);
 864         rt2x00usb_vendor_request_sw(rt2x00dev, USB_SINGLE_WRITE, 0x0308,
 865                                     0x00f0, REGISTER_TIMEOUT);
 866
 867         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
 868         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX, 1);
 869         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
 870
 871         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x1111);
 872         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x1e11);
 873
 874         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 875         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 1);
 876         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 1);
 877         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 878         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 879
 880         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 881         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 882         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 883         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 0);
 884         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 885
 886         rt2500usb_register_read(rt2x00dev, TXRX_CSR5, &reg);
 887         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0, 13);
 888         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID0_VALID, 1);
 889         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1, 12);
 890         rt2x00_set_field16(&reg, TXRX_CSR5_BBP_ID1_VALID, 1);
 891         rt2500usb_register_write(rt2x00dev, TXRX_CSR5, reg);
 892
 893         rt2500usb_register_read(rt2x00dev, TXRX_CSR6, &reg);
 894         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0, 10);
 895         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID0_VALID, 1);
 896         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1, 11);
 897         rt2x00_set_field16(&reg, TXRX_CSR6_BBP_ID1_VALID, 1);
 898         rt2500usb_register_write(rt2x00dev, TXRX_CSR6, reg);
 899
 900         rt2500usb_register_read(rt2x00dev, TXRX_CSR7, &reg);
 901         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0, 7);
 902         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID0_VALID, 1);
 903         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1, 6);
 904         rt2x00_set_field16(&reg, TXRX_CSR7_BBP_ID1_VALID, 1);
 905         rt2500usb_register_write(rt2x00dev, TXRX_CSR7, reg);
 906
 907         rt2500usb_register_read(rt2x00dev, TXRX_CSR8, &reg);
 908         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0, 5);
 909         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID0_VALID, 1);
 910         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1, 0);
 911         rt2x00_set_field16(&reg, TXRX_CSR8_BBP_ID1_VALID, 0);
 912         rt2500usb_register_write(rt2x00dev, TXRX_CSR8, reg);
 913
 914         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
 915         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 0);
 916         rt2x00_set_field16(&reg, TXRX_CSR19_TSF_SYNC, 0);
 917         rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 0);
 918         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
 919         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 920
 921         rt2500usb_register_write(rt2x00dev, TXRX_CSR21, 0xe78f);
 922         rt2500usb_register_write(rt2x00dev, MAC_CSR9, 0xff1d);
 923
 924         if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
 925                 return -EBUSY;
 926
 927         rt2500usb_register_read(rt2x00dev, MAC_CSR1, &reg);
 928         rt2x00_set_field16(&reg, MAC_CSR1_SOFT_RESET, 0);
 929         rt2x00_set_field16(&reg, MAC_CSR1_BBP_RESET, 0);
 930         rt2x00_set_field16(&reg, MAC_CSR1_HOST_READY, 1);
 931         rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
 932
 933         if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
 934                 rt2500usb_register_read(rt2x00dev, PHY_CSR2, &reg);
 935                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 0);
 936         } else {
 937                 reg = 0;
 938                 rt2x00_set_field16(&reg, PHY_CSR2_LNA, 1);
 939                 rt2x00_set_field16(&reg, PHY_CSR2_LNA_MODE, 3);
 940         }
 941         rt2500usb_register_write(rt2x00dev, PHY_CSR2, reg);
 942
 943         rt2500usb_register_write(rt2x00dev, MAC_CSR11, 0x0002);
 944         rt2500usb_register_write(rt2x00dev, MAC_CSR22, 0x0053);
 945         rt2500usb_register_write(rt2x00dev, MAC_CSR15, 0x01ee);
 946         rt2500usb_register_write(rt2x00dev, MAC_CSR16, 0x0000);
 947
 948         rt2500usb_register_read(rt2x00dev, MAC_CSR8, &reg);
 949         rt2x00_set_field16(&reg, MAC_CSR8_MAX_FRAME_UNIT,
 950                            rt2x00dev->rx->data_size);
 951         rt2500usb_register_write(rt2x00dev, MAC_CSR8, reg);
 952
 953         rt2500usb_register_read(rt2x00dev, TXRX_CSR0, &reg);
 954         rt2x00_set_field16(&reg, TXRX_CSR0_IV_OFFSET, IEEE80211_HEADER);
 955         rt2x00_set_field16(&reg, TXRX_CSR0_KEY_ID, 0);
 956         rt2500usb_register_write(rt2x00dev, TXRX_CSR0, reg);
 957
 958         rt2500usb_register_read(rt2x00dev, MAC_CSR18, &reg);
 959         rt2x00_set_field16(&reg, MAC_CSR18_DELAY_AFTER_BEACON, 90);
 960         rt2500usb_register_write(rt2x00dev, MAC_CSR18, reg);
 961
 962         rt2500usb_register_read(rt2x00dev, PHY_CSR4, &reg);
 963         rt2x00_set_field16(&reg, PHY_CSR4_LOW_RF_LE, 1);
 964         rt2500usb_register_write(rt2x00dev, PHY_CSR4, reg);
 965
 966         rt2500usb_register_read(rt2x00dev, TXRX_CSR1, &reg);
 967         rt2x00_set_field16(&reg, TXRX_CSR1_AUTO_SEQUENCE, 1);
 968         rt2500usb_register_write(rt2x00dev, TXRX_CSR1, reg);
 969
 970         return 0;
 971 }
 972
 973 static int rt2500usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
 974 {
 975         unsigned int i;
 976         u8 value;
 977
 978         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 979                 rt2500usb_bbp_read(rt2x00dev, 0, &value);
 980                 if ((value != 0xff) && (value != 0x00))
 981                         return 0;
 982                 udelay(REGISTER_BUSY_DELAY);
 983         }
 984
 985         ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
 986         return -EACCES;
 987 }
 988
 989 static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
 990 {
 991         unsigned int i;
 992         u16 eeprom;
 993         u8 value;
 994         u8 reg_id;
 995
 996         if (unlikely(rt2500usb_wait_bbp_ready(rt2x00dev)))
 997                 return -EACCES;
 998
 999         rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
1000         rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
1001         rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
1002         rt2500usb_bbp_write(rt2x00dev, 15, 0x30);
1003         rt2500usb_bbp_write(rt2x00dev, 16, 0xac);
1004         rt2500usb_bbp_write(rt2x00dev, 18, 0x18);
1005         rt2500usb_bbp_write(rt2x00dev, 19, 0xff);
1006         rt2500usb_bbp_write(rt2x00dev, 20, 0x1e);
1007         rt2500usb_bbp_write(rt2x00dev, 21, 0x08);
1008         rt2500usb_bbp_write(rt2x00dev, 22, 0x08);
1009         rt2500usb_bbp_write(rt2x00dev, 23, 0x08);
1010         rt2500usb_bbp_write(rt2x00dev, 24, 0x80);
1011         rt2500usb_bbp_write(rt2x00dev, 25, 0x50);
1012         rt2500usb_bbp_write(rt2x00dev, 26, 0x08);
1013         rt2500usb_bbp_write(rt2x00dev, 27, 0x23);
1014         rt2500usb_bbp_write(rt2x00dev, 30, 0x10);
1015         rt2500usb_bbp_write(rt2x00dev, 31, 0x2b);
1016         rt2500usb_bbp_write(rt2x00dev, 32, 0xb9);
1017         rt2500usb_bbp_write(rt2x00dev, 34, 0x12);
1018         rt2500usb_bbp_write(rt2x00dev, 35, 0x50);
1019         rt2500usb_bbp_write(rt2x00dev, 39, 0xc4);
1020         rt2500usb_bbp_write(rt2x00dev, 40, 0x02);
1021         rt2500usb_bbp_write(rt2x00dev, 41, 0x60);
1022         rt2500usb_bbp_write(rt2x00dev, 53, 0x10);
1023         rt2500usb_bbp_write(rt2x00dev, 54, 0x18);
1024         rt2500usb_bbp_write(rt2x00dev, 56, 0x08);
1025         rt2500usb_bbp_write(rt2x00dev, 57, 0x10);
1026         rt2500usb_bbp_write(rt2x00dev, 58, 0x08);
1027         rt2500usb_bbp_write(rt2x00dev, 61, 0x60);
1028         rt2500usb_bbp_write(rt2x00dev, 62, 0x10);
1029         rt2500usb_bbp_write(rt2x00dev, 75, 0xff);
1030
1031         for (i = 0; i < EEPROM_BBP_SIZE; i++) {
1032                 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
1033
1034                 if (eeprom != 0xffff && eeprom != 0x0000) {
1035                         reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
1036                         value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
1037                         rt2500usb_bbp_write(rt2x00dev, reg_id, value);
1038                 }
1039         }
1040
1041         return 0;
1042 }
1043
1044 /*
1045  * Device state switch handlers.
1046  */
1047 static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
1048                                 enum dev_state state)
1049 {
1050         u16 reg;
1051
1052         rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
1053         rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX,
1054                            (state == STATE_RADIO_RX_OFF) ||
1055                            (state == STATE_RADIO_RX_OFF_LINK));
1056         rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
1057 }
1058
1059 static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
1060 {
1061         /*
1062          * Initialize all registers.
1063          */
1064         if (unlikely(rt2500usb_init_registers(rt2x00dev) ||
1065                      rt2500usb_init_bbp(rt2x00dev)))
1066                 return -EIO;
1067
1068         return 0;
1069 }
1070
1071 static void rt2500usb_disable_radio(struct rt2x00_dev *rt2x00dev)
1072 {
1073         rt2500usb_register_write(rt2x00dev, MAC_CSR13, 0x2121);
1074         rt2500usb_register_write(rt2x00dev, MAC_CSR14, 0x2121);
1075
1076         /*
1077          * Disable synchronisation.
1078          */
1079         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, 0);
1080
1081         rt2x00usb_disable_radio(rt2x00dev);
1082 }
1083
1084 static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
1085                                enum dev_state state)
1086 {
1087         u16 reg;
1088         u16 reg2;
1089         unsigned int i;
1090         char put_to_sleep;
1091         char bbp_state;
1092         char rf_state;
1093
1094         put_to_sleep = (state != STATE_AWAKE);
1095
1096         reg = 0;
1097         rt2x00_set_field16(&reg, MAC_CSR17_BBP_DESIRE_STATE, state);
1098         rt2x00_set_field16(&reg, MAC_CSR17_RF_DESIRE_STATE, state);
1099         rt2x00_set_field16(&reg, MAC_CSR17_PUT_TO_SLEEP, put_to_sleep);
1100         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1101         rt2x00_set_field16(&reg, MAC_CSR17_SET_STATE, 1);
1102         rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1103
1104         /*
1105          * Device is not guaranteed to be in the requested state yet.
1106          * We must wait until the register indicates that the
1107          * device has entered the correct state.
1108          */
1109         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1110                 rt2500usb_register_read(rt2x00dev, MAC_CSR17, &reg2);
1111                 bbp_state = rt2x00_get_field16(reg2, MAC_CSR17_BBP_CURR_STATE);
1112                 rf_state = rt2x00_get_field16(reg2, MAC_CSR17_RF_CURR_STATE);
1113                 if (bbp_state == state && rf_state == state)
1114                         return 0;
1115                 rt2500usb_register_write(rt2x00dev, MAC_CSR17, reg);
1116                 msleep(30);
1117         }
1118
1119         return -EBUSY;
1120 }
1121
1122 static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
1123                                       enum dev_state state)
1124 {
1125         int retval = 0;
1126
1127         switch (state) {
1128         case STATE_RADIO_ON:
1129                 retval = rt2500usb_enable_radio(rt2x00dev);
1130                 break;
1131         case STATE_RADIO_OFF:
1132                 rt2500usb_disable_radio(rt2x00dev);
1133                 break;
1134         case STATE_RADIO_RX_ON:
1135         case STATE_RADIO_RX_ON_LINK:
1136         case STATE_RADIO_RX_OFF:
1137         case STATE_RADIO_RX_OFF_LINK:
1138                 rt2500usb_toggle_rx(rt2x00dev, state);
1139                 break;
1140         case STATE_RADIO_IRQ_ON:
1141         case STATE_RADIO_IRQ_OFF:
1142                 /* No support, but no error either */
1143                 break;
1144         case STATE_DEEP_SLEEP:
1145         case STATE_SLEEP:
1146         case STATE_STANDBY:
1147         case STATE_AWAKE:
1148                 retval = rt2500usb_set_state(rt2x00dev, state);
1149                 break;
1150         default:
1151                 retval = -ENOTSUPP;
1152                 break;
1153         }
1154
1155         if (unlikely(retval))
1156                 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
1157                       state, retval);
1158
1159         return retval;
1160 }
1161
1162 /*
1163  * TX descriptor initialization
1164  */
1165 static void rt2500usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1166                                     struct sk_buff *skb,
1167                                     struct txentry_desc *txdesc)
1168 {
1169         struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1170         __le32 *txd = skbdesc->desc;
1171         u32 word;
1172
1173         /*
1174          * Start writing the descriptor words.
1175          */
1176         rt2x00_desc_read(txd, 1, &word);
1177         rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, txdesc->iv_offset);
1178         rt2x00_set_field32(&word, TXD_W1_AIFS, txdesc->aifs);
1179         rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1180         rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1181         rt2x00_desc_write(txd, 1, word);
1182
1183         rt2x00_desc_read(txd, 2, &word);
1184         rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1185         rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1186         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1187         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1188         rt2x00_desc_write(txd, 2, word);
1189
1190         if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) {
1191                 _rt2x00_desc_write(txd, 3, skbdesc->iv[0]);
1192                 _rt2x00_desc_write(txd, 4, skbdesc->iv[1]);
1193         }
1194
1195         rt2x00_desc_read(txd, 0, &word);
1196         rt2x00_set_field32(&word, TXD_W0_RETRY_LIMIT, txdesc->retry_limit);
1197         rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1198                            test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1199         rt2x00_set_field32(&word, TXD_W0_ACK,
1200                            test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1201         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1202                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1203         rt2x00_set_field32(&word, TXD_W0_OFDM,
1204                            (txdesc->rate_mode == RATE_MODE_OFDM));
1205         rt2x00_set_field32(&word, TXD_W0_NEW_SEQ,
1206                            test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags));
1207         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1208         rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skb->len);
1209         rt2x00_set_field32(&word, TXD_W0_CIPHER, !!txdesc->cipher);
1210         rt2x00_set_field32(&word, TXD_W0_KEY_ID, txdesc->key_idx);
1211         rt2x00_desc_write(txd, 0, word);
1212 }
1213
1214 /*
1215  * TX data initialization
1216  */
1217 static void rt2500usb_beacondone(struct urb *urb);
1218
1219 static void rt2500usb_write_beacon(struct queue_entry *entry)
1220 {
1221         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1222         struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev);
1223         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1224         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1225         int pipe = usb_sndbulkpipe(usb_dev, entry->queue->usb_endpoint);
1226         int length;
1227         u16 reg;
1228
1229         /*
1230          * Add the descriptor in front of the skb.
1231          */
1232         skb_push(entry->skb, entry->queue->desc_size);
1233         memcpy(entry->skb->data, skbdesc->desc, skbdesc->desc_len);
1234         skbdesc->desc = entry->skb->data;
1235
1236         /*
1237          * Disable beaconing while we are reloading the beacon data,
1238          * otherwise we might be sending out invalid data.
1239          */
1240         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1241         rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 0);
1242         rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1243
1244         /*
1245          * USB devices cannot blindly pass the skb->len as the
1246          * length of the data to usb_fill_bulk_urb. Pass the skb
1247          * to the driver to determine what the length should be.
1248          */
1249         length = rt2x00dev->ops->lib->get_tx_data_len(entry);
1250
1251         usb_fill_bulk_urb(bcn_priv->urb, usb_dev, pipe,
1252                           entry->skb->data, length, rt2500usb_beacondone,
1253                           entry);
1254
1255         /*
1256          * Second we need to create the guardian byte.
1257          * We only need a single byte, so lets recycle
1258          * the 'flags' field we are not using for beacons.
1259          */
1260         bcn_priv->guardian_data = 0;
1261         usb_fill_bulk_urb(bcn_priv->guardian_urb, usb_dev, pipe,
1262                           &bcn_priv->guardian_data, 1, rt2500usb_beacondone,
1263                           entry);
1264
1265         /*
1266          * Send out the guardian byte.
1267          */
1268         usb_submit_urb(bcn_priv->guardian_urb, GFP_ATOMIC);
1269 }
1270
1271 static int rt2500usb_get_tx_data_len(struct queue_entry *entry)
1272 {
1273         int length;
1274
1275         /*
1276          * The length _must_ be a multiple of 2,
1277          * but it must _not_ be a multiple of the USB packet size.
1278          */
1279         length = roundup(entry->skb->len, 2);
1280         length += (2 * !(length % entry->queue->usb_maxpacket));
1281
1282         return length;
1283 }
1284
1285 static void rt2500usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1286                                     const enum data_queue_qid queue)
1287 {
1288         u16 reg, reg0;
1289
1290         if (queue != QID_BEACON) {
1291                 rt2x00usb_kick_tx_queue(rt2x00dev, queue);
1292                 return;
1293         }
1294
1295         rt2500usb_register_read(rt2x00dev, TXRX_CSR19, &reg);
1296         if (!rt2x00_get_field16(reg, TXRX_CSR19_BEACON_GEN)) {
1297                 rt2x00_set_field16(&reg, TXRX_CSR19_TSF_COUNT, 1);
1298                 rt2x00_set_field16(&reg, TXRX_CSR19_TBCN, 1);
1299                 reg0 = reg;
1300                 rt2x00_set_field16(&reg, TXRX_CSR19_BEACON_GEN, 1);
1301                 /*
1302                  * Beacon generation will fail initially.
1303                  * To prevent this we need to change the TXRX_CSR19
1304                  * register several times (reg0 is the same as reg
1305                  * except for TXRX_CSR19_BEACON_GEN, which is 0 in reg0
1306                  * and 1 in reg).
1307                  */
1308                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1309                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
1310                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1311                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg0);
1312                 rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
1313         }
1314 }
1315
1316 /*
1317  * RX control handlers
1318  */
1319 static void rt2500usb_fill_rxdone(struct queue_entry *entry,
1320                                   struct rxdone_entry_desc *rxdesc)
1321 {
1322         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1323         struct queue_entry_priv_usb *entry_priv = entry->priv_data;
1324         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1325         __le32 *rxd =
1326             (__le32 *)(entry->skb->data +
1327                        (entry_priv->urb->actual_length -
1328                         entry->queue->desc_size));
1329         u32 word0;
1330         u32 word1;
1331
1332         /*
1333          * Copy descriptor to the skbdesc->desc buffer, making it safe from moving of
1334          * frame data in rt2x00usb.
1335          */
1336         memcpy(skbdesc->desc, rxd, skbdesc->desc_len);
1337         rxd = (__le32 *)skbdesc->desc;
1338
1339         /*
1340          * It is now safe to read the descriptor on all architectures.
1341          */
1342         rt2x00_desc_read(rxd, 0, &word0);
1343         rt2x00_desc_read(rxd, 1, &word1);
1344
1345         if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1346                 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1347         if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
1348                 rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
1349
1350         if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) {
1351                 rxdesc->cipher = rt2x00_get_field32(word0, RXD_W0_CIPHER);
1352                 if (rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR))
1353                         rxdesc->cipher_status = RX_CRYPTO_FAIL_KEY;
1354         }
1355
1356         if (rxdesc->cipher != CIPHER_NONE) {
1357                 _rt2x00_desc_read(rxd, 2, &rxdesc->iv[0]);
1358                 _rt2x00_desc_read(rxd, 3, &rxdesc->iv[1]);
1359                 rxdesc->dev_flags |= RXDONE_CRYPTO_IV;
1360
1361                 /* ICV is located at the end of frame */
1362
1363                 rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
1364                 if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
1365                         rxdesc->flags |= RX_FLAG_DECRYPTED;
1366                 else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
1367                         rxdesc->flags |= RX_FLAG_MMIC_ERROR;
1368         }
1369
1370         /*
1371          * Obtain the status about this packet.
1372          * When frame was received with an OFDM bitrate,
1373          * the signal is the PLCP value. If it was received with
1374          * a CCK bitrate the signal is the rate in 100kbit/s.
1375          */
1376         rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1377         rxdesc->rssi =
1378             rt2x00_get_field32(word1, RXD_W1_RSSI) - rt2x00dev->rssi_offset;
1379         rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1380
1381         if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1382                 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1383         else
1384                 rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
1385         if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1386                 rxdesc->dev_flags |= RXDONE_MY_BSS;
1387
1388         /*
1389          * Adjust the skb memory window to the frame boundaries.
1390          */
1391         skb_trim(entry->skb, rxdesc->size);
1392 }
1393
1394 /*
1395  * Interrupt functions.
1396  */
1397 static void rt2500usb_beacondone(struct urb *urb)
1398 {
1399         struct queue_entry *entry = (struct queue_entry *)urb->context;
1400         struct queue_entry_priv_usb_bcn *bcn_priv = entry->priv_data;
1401
1402         if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &entry->queue->rt2x00dev->flags))
1403                 return;
1404
1405         /*
1406          * Check if this was the guardian beacon,
1407          * if that was the case we need to send the real beacon now.
1408          * Otherwise we should free the sk_buffer, the device
1409          * should be doing the rest of the work now.
1410          */
1411         if (bcn_priv->guardian_urb == urb) {
1412                 usb_submit_urb(bcn_priv->urb, GFP_ATOMIC);
1413         } else if (bcn_priv->urb == urb) {
1414                 dev_kfree_skb(entry->skb);
1415                 entry->skb = NULL;
1416         }
1417 }
1418
1419 /*
1420  * Device probe functions.
1421  */
1422 static int rt2500usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1423 {
1424         u16 word;
1425         u8 *mac;
1426         u8 bbp;
1427
1428         rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, EEPROM_SIZE);
1429
1430         /*
1431          * Start validation of the data that has been read.
1432          */
1433         mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1434         if (!is_valid_ether_addr(mac)) {
1435                 random_ether_addr(mac);
1436                 EEPROM(rt2x00dev, "MAC: %pM\n", mac);
1437         }
1438
1439         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1440         if (word == 0xffff) {
1441                 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1442                 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1443                                    ANTENNA_SW_DIVERSITY);
1444                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1445                                    ANTENNA_SW_DIVERSITY);
1446                 rt2x00_set_field16(&word, EEPROM_ANTENNA_LED_MODE,
1447                                    LED_MODE_DEFAULT);
1448                 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1449                 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1450                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF2522);
1451                 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1452                 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1453         }
1454
1455         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1456         if (word == 0xffff) {
1457                 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1458                 rt2x00_set_field16(&word, EEPROM_NIC_DYN_BBP_TUNE, 0);
1459                 rt2x00_set_field16(&word, EEPROM_NIC_CCK_TX_POWER, 0);
1460                 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1461                 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1462         }
1463
1464         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &word);
1465         if (word == 0xffff) {
1466                 rt2x00_set_field16(&word, EEPROM_CALIBRATE_OFFSET_RSSI,
1467                                    DEFAULT_RSSI_OFFSET);
1468                 rt2x00_eeprom_write(rt2x00dev, EEPROM_CALIBRATE_OFFSET, word);
1469                 EEPROM(rt2x00dev, "Calibrate offset: 0x%04x\n", word);
1470         }
1471
1472         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE, &word);
1473         if (word == 0xffff) {
1474                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_THRESHOLD, 45);
1475                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE, word);
1476                 EEPROM(rt2x00dev, "BBPtune: 0x%04x\n", word);
1477         }
1478
1479         /*
1480          * Switch lower vgc bound to current BBP R17 value,
1481          * lower the value a bit for better quality.
1482          */
1483         rt2500usb_bbp_read(rt2x00dev, 17, &bbp);
1484         bbp -= 6;
1485
1486         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_VGC, &word);
1487         if (word == 0xffff) {
1488                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCUPPER, 0x40);
1489                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1490                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1491                 EEPROM(rt2x00dev, "BBPtune vgc: 0x%04x\n", word);
1492         } else {
1493                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_VGCLOWER, bbp);
1494                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_VGC, word);
1495         }
1496
1497         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R17, &word);
1498         if (word == 0xffff) {
1499                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_LOW, 0x48);
1500                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R17_HIGH, 0x41);
1501                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R17, word);
1502                 EEPROM(rt2x00dev, "BBPtune r17: 0x%04x\n", word);
1503         }
1504
1505         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R24, &word);
1506         if (word == 0xffff) {
1507                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_LOW, 0x40);
1508                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R24_HIGH, 0x80);
1509                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R24, word);
1510                 EEPROM(rt2x00dev, "BBPtune r24: 0x%04x\n", word);
1511         }
1512
1513         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R25, &word);
1514         if (word == 0xffff) {
1515                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_LOW, 0x40);
1516                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R25_HIGH, 0x50);
1517                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R25, word);
1518                 EEPROM(rt2x00dev, "BBPtune r25: 0x%04x\n", word);
1519         }
1520
1521         rt2x00_eeprom_read(rt2x00dev, EEPROM_BBPTUNE_R61, &word);
1522         if (word == 0xffff) {
1523                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_LOW, 0x60);
1524                 rt2x00_set_field16(&word, EEPROM_BBPTUNE_R61_HIGH, 0x6d);
1525                 rt2x00_eeprom_write(rt2x00dev, EEPROM_BBPTUNE_R61, word);
1526                 EEPROM(rt2x00dev, "BBPtune r61: 0x%04x\n", word);
1527         }
1528
1529         return 0;
1530 }
1531
1532 static int rt2500usb_init_eeprom(struct rt2x00_dev *rt2x00dev)
1533 {
1534         u16 reg;
1535         u16 value;
1536         u16 eeprom;
1537
1538         /*
1539          * Read EEPROM word for configuration.
1540          */
1541         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1542
1543         /*
1544          * Identify RF chipset.
1545          */
1546         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1547         rt2500usb_register_read(rt2x00dev, MAC_CSR0, &reg);
1548         rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
1549
1550         if (!rt2x00_check_rev(&rt2x00dev->chip, 0x000ffff0, 0) ||
1551             rt2x00_check_rev(&rt2x00dev->chip, 0x0000000f, 0)) {
1552
1553                 ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
1554                 return -ENODEV;
1555         }
1556
1557         if (!rt2x00_rf(&rt2x00dev->chip, RF2522) &&
1558             !rt2x00_rf(&rt2x00dev->chip, RF2523) &&
1559             !rt2x00_rf(&rt2x00dev->chip, RF2524) &&
1560             !rt2x00_rf(&rt2x00dev->chip, RF2525) &&
1561             !rt2x00_rf(&rt2x00dev->chip, RF2525E) &&
1562             !rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1563                 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1564                 return -ENODEV;
1565         }
1566
1567         /*
1568          * Identify default antenna configuration.
1569          */
1570         rt2x00dev->default_ant.tx =
1571             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
1572         rt2x00dev->default_ant.rx =
1573             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
1574
1575         /*
1576          * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
1577          * I am not 100% sure about this, but the legacy drivers do not
1578          * indicate antenna swapping in software is required when
1579          * diversity is enabled.
1580          */
1581         if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
1582                 rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
1583         if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
1584                 rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
1585
1586         /*
1587          * Store led mode, for correct led behaviour.
1588          */
1589 #ifdef CONFIG_RT2X00_LIB_LEDS
1590         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
1591
1592         rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
1593         if (value == LED_MODE_TXRX_ACTIVITY ||
1594             value == LED_MODE_DEFAULT ||
1595             value == LED_MODE_ASUS)
1596                 rt2500usb_init_led(rt2x00dev, &rt2x00dev->led_qual,
1597                                    LED_TYPE_ACTIVITY);
1598 #endif /* CONFIG_RT2X00_LIB_LEDS */
1599
1600         /*
1601          * Detect if this device has an hardware controlled radio.
1602          */
1603         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
1604                 __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
1605
1606         /*
1607          * Check if the BBP tuning should be disabled.
1608          */
1609         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
1610         if (rt2x00_get_field16(eeprom, EEPROM_NIC_DYN_BBP_TUNE))
1611                 __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1612
1613         /*
1614          * Read the RSSI <-> dBm offset information.
1615          */
1616         rt2x00_eeprom_read(rt2x00dev, EEPROM_CALIBRATE_OFFSET, &eeprom);
1617         rt2x00dev->rssi_offset =
1618             rt2x00_get_field16(eeprom, EEPROM_CALIBRATE_OFFSET_RSSI);
1619
1620         return 0;
1621 }
1622
1623 /*
1624  * RF value list for RF2522
1625  * Supports: 2.4 GHz
1626  */
1627 static const struct rf_channel rf_vals_bg_2522[] = {
1628         { 1,  0x00002050, 0x000c1fda, 0x00000101, 0 },
1629         { 2,  0x00002050, 0x000c1fee, 0x00000101, 0 },
1630         { 3,  0x00002050, 0x000c2002, 0x00000101, 0 },
1631         { 4,  0x00002050, 0x000c2016, 0x00000101, 0 },
1632         { 5,  0x00002050, 0x000c202a, 0x00000101, 0 },
1633         { 6,  0x00002050, 0x000c203e, 0x00000101, 0 },
1634         { 7,  0x00002050, 0x000c2052, 0x00000101, 0 },
1635         { 8,  0x00002050, 0x000c2066, 0x00000101, 0 },
1636         { 9,  0x00002050, 0x000c207a, 0x00000101, 0 },
1637         { 10, 0x00002050, 0x000c208e, 0x00000101, 0 },
1638         { 11, 0x00002050, 0x000c20a2, 0x00000101, 0 },
1639         { 12, 0x00002050, 0x000c20b6, 0x00000101, 0 },
1640         { 13, 0x00002050, 0x000c20ca, 0x00000101, 0 },
1641         { 14, 0x00002050, 0x000c20fa, 0x00000101, 0 },
1642 };
1643
1644 /*
1645  * RF value list for RF2523
1646  * Supports: 2.4 GHz
1647  */
1648 static const struct rf_channel rf_vals_bg_2523[] = {
1649         { 1,  0x00022010, 0x00000c9e, 0x000e0111, 0x00000a1b },
1650         { 2,  0x00022010, 0x00000ca2, 0x000e0111, 0x00000a1b },
1651         { 3,  0x00022010, 0x00000ca6, 0x000e0111, 0x00000a1b },
1652         { 4,  0x00022010, 0x00000caa, 0x000e0111, 0x00000a1b },
1653         { 5,  0x00022010, 0x00000cae, 0x000e0111, 0x00000a1b },
1654         { 6,  0x00022010, 0x00000cb2, 0x000e0111, 0x00000a1b },
1655         { 7,  0x00022010, 0x00000cb6, 0x000e0111, 0x00000a1b },
1656         { 8,  0x00022010, 0x00000cba, 0x000e0111, 0x00000a1b },
1657         { 9,  0x00022010, 0x00000cbe, 0x000e0111, 0x00000a1b },
1658         { 10, 0x00022010, 0x00000d02, 0x000e0111, 0x00000a1b },
1659         { 11, 0x00022010, 0x00000d06, 0x000e0111, 0x00000a1b },
1660         { 12, 0x00022010, 0x00000d0a, 0x000e0111, 0x00000a1b },
1661         { 13, 0x00022010, 0x00000d0e, 0x000e0111, 0x00000a1b },
1662         { 14, 0x00022010, 0x00000d1a, 0x000e0111, 0x00000a03 },
1663 };
1664
1665 /*
1666  * RF value list for RF2524
1667  * Supports: 2.4 GHz
1668  */
1669 static const struct rf_channel rf_vals_bg_2524[] = {
1670         { 1,  0x00032020, 0x00000c9e, 0x00000101, 0x00000a1b },
1671         { 2,  0x00032020, 0x00000ca2, 0x00000101, 0x00000a1b },
1672         { 3,  0x00032020, 0x00000ca6, 0x00000101, 0x00000a1b },
1673         { 4,  0x00032020, 0x00000caa, 0x00000101, 0x00000a1b },
1674         { 5,  0x00032020, 0x00000cae, 0x00000101, 0x00000a1b },
1675         { 6,  0x00032020, 0x00000cb2, 0x00000101, 0x00000a1b },
1676         { 7,  0x00032020, 0x00000cb6, 0x00000101, 0x00000a1b },
1677         { 8,  0x00032020, 0x00000cba, 0x00000101, 0x00000a1b },
1678         { 9,  0x00032020, 0x00000cbe, 0x00000101, 0x00000a1b },
1679         { 10, 0x00032020, 0x00000d02, 0x00000101, 0x00000a1b },
1680         { 11, 0x00032020, 0x00000d06, 0x00000101, 0x00000a1b },
1681         { 12, 0x00032020, 0x00000d0a, 0x00000101, 0x00000a1b },
1682         { 13, 0x00032020, 0x00000d0e, 0x00000101, 0x00000a1b },
1683         { 14, 0x00032020, 0x00000d1a, 0x00000101, 0x00000a03 },
1684 };
1685
1686 /*
1687  * RF value list for RF2525
1688  * Supports: 2.4 GHz
1689  */
1690 static const struct rf_channel rf_vals_bg_2525[] = {
1691         { 1,  0x00022020, 0x00080c9e, 0x00060111, 0x00000a1b },
1692         { 2,  0x00022020, 0x00080ca2, 0x00060111, 0x00000a1b },
1693         { 3,  0x00022020, 0x00080ca6, 0x00060111, 0x00000a1b },
1694         { 4,  0x00022020, 0x00080caa, 0x00060111, 0x00000a1b },
1695         { 5,  0x00022020, 0x00080cae, 0x00060111, 0x00000a1b },
1696         { 6,  0x00022020, 0x00080cb2, 0x00060111, 0x00000a1b },
1697         { 7,  0x00022020, 0x00080cb6, 0x00060111, 0x00000a1b },
1698         { 8,  0x00022020, 0x00080cba, 0x00060111, 0x00000a1b },
1699         { 9,  0x00022020, 0x00080cbe, 0x00060111, 0x00000a1b },
1700         { 10, 0x00022020, 0x00080d02, 0x00060111, 0x00000a1b },
1701         { 11, 0x00022020, 0x00080d06, 0x00060111, 0x00000a1b },
1702         { 12, 0x00022020, 0x00080d0a, 0x00060111, 0x00000a1b },
1703         { 13, 0x00022020, 0x00080d0e, 0x00060111, 0x00000a1b },
1704         { 14, 0x00022020, 0x00080d1a, 0x00060111, 0x00000a03 },
1705 };
1706
1707 /*
1708  * RF value list for RF2525e
1709  * Supports: 2.4 GHz
1710  */
1711 static const struct rf_channel rf_vals_bg_2525e[] = {
1712         { 1,  0x00022010, 0x0000089a, 0x00060111, 0x00000e1b },
1713         { 2,  0x00022010, 0x0000089e, 0x00060111, 0x00000e07 },
1714         { 3,  0x00022010, 0x0000089e, 0x00060111, 0x00000e1b },
1715         { 4,  0x00022010, 0x000008a2, 0x00060111, 0x00000e07 },
1716         { 5,  0x00022010, 0x000008a2, 0x00060111, 0x00000e1b },
1717         { 6,  0x00022010, 0x000008a6, 0x00060111, 0x00000e07 },
1718         { 7,  0x00022010, 0x000008a6, 0x00060111, 0x00000e1b },
1719         { 8,  0x00022010, 0x000008aa, 0x00060111, 0x00000e07 },
1720         { 9,  0x00022010, 0x000008aa, 0x00060111, 0x00000e1b },
1721         { 10, 0x00022010, 0x000008ae, 0x00060111, 0x00000e07 },
1722         { 11, 0x00022010, 0x000008ae, 0x00060111, 0x00000e1b },
1723         { 12, 0x00022010, 0x000008b2, 0x00060111, 0x00000e07 },
1724         { 13, 0x00022010, 0x000008b2, 0x00060111, 0x00000e1b },
1725         { 14, 0x00022010, 0x000008b6, 0x00060111, 0x00000e23 },
1726 };
1727
1728 /*
1729  * RF value list for RF5222
1730  * Supports: 2.4 GHz & 5.2 GHz
1731  */
1732 static const struct rf_channel rf_vals_5222[] = {
1733         { 1,  0x00022020, 0x00001136, 0x00000101, 0x00000a0b },
1734         { 2,  0x00022020, 0x0000113a, 0x00000101, 0x00000a0b },
1735         { 3,  0x00022020, 0x0000113e, 0x00000101, 0x00000a0b },
1736         { 4,  0x00022020, 0x00001182, 0x00000101, 0x00000a0b },
1737         { 5,  0x00022020, 0x00001186, 0x00000101, 0x00000a0b },
1738         { 6,  0x00022020, 0x0000118a, 0x00000101, 0x00000a0b },
1739         { 7,  0x00022020, 0x0000118e, 0x00000101, 0x00000a0b },
1740         { 8,  0x00022020, 0x00001192, 0x00000101, 0x00000a0b },
1741         { 9,  0x00022020, 0x00001196, 0x00000101, 0x00000a0b },
1742         { 10, 0x00022020, 0x0000119a, 0x00000101, 0x00000a0b },
1743         { 11, 0x00022020, 0x0000119e, 0x00000101, 0x00000a0b },
1744         { 12, 0x00022020, 0x000011a2, 0x00000101, 0x00000a0b },
1745         { 13, 0x00022020, 0x000011a6, 0x00000101, 0x00000a0b },
1746         { 14, 0x00022020, 0x000011ae, 0x00000101, 0x00000a1b },
1747
1748         /* 802.11 UNI / HyperLan 2 */
1749         { 36, 0x00022010, 0x00018896, 0x00000101, 0x00000a1f },
1750         { 40, 0x00022010, 0x0001889a, 0x00000101, 0x00000a1f },
1751         { 44, 0x00022010, 0x0001889e, 0x00000101, 0x00000a1f },
1752         { 48, 0x00022010, 0x000188a2, 0x00000101, 0x00000a1f },
1753         { 52, 0x00022010, 0x000188a6, 0x00000101, 0x00000a1f },
1754         { 66, 0x00022010, 0x000188aa, 0x00000101, 0x00000a1f },
1755         { 60, 0x00022010, 0x000188ae, 0x00000101, 0x00000a1f },
1756         { 64, 0x00022010, 0x000188b2, 0x00000101, 0x00000a1f },
1757
1758         /* 802.11 HyperLan 2 */
1759         { 100, 0x00022010, 0x00008802, 0x00000101, 0x00000a0f },
1760         { 104, 0x00022010, 0x00008806, 0x00000101, 0x00000a0f },
1761         { 108, 0x00022010, 0x0000880a, 0x00000101, 0x00000a0f },
1762         { 112, 0x00022010, 0x0000880e, 0x00000101, 0x00000a0f },
1763         { 116, 0x00022010, 0x00008812, 0x00000101, 0x00000a0f },
1764         { 120, 0x00022010, 0x00008816, 0x00000101, 0x00000a0f },
1765         { 124, 0x00022010, 0x0000881a, 0x00000101, 0x00000a0f },
1766         { 128, 0x00022010, 0x0000881e, 0x00000101, 0x00000a0f },
1767         { 132, 0x00022010, 0x00008822, 0x00000101, 0x00000a0f },
1768         { 136, 0x00022010, 0x00008826, 0x00000101, 0x00000a0f },
1769
1770         /* 802.11 UNII */
1771         { 140, 0x00022010, 0x0000882a, 0x00000101, 0x00000a0f },
1772         { 149, 0x00022020, 0x000090a6, 0x00000101, 0x00000a07 },
1773         { 153, 0x00022020, 0x000090ae, 0x00000101, 0x00000a07 },
1774         { 157, 0x00022020, 0x000090b6, 0x00000101, 0x00000a07 },
1775         { 161, 0x00022020, 0x000090be, 0x00000101, 0x00000a07 },
1776 };
1777
1778 static int rt2500usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
1779 {
1780         struct hw_mode_spec *spec = &rt2x00dev->spec;
1781         struct channel_info *info;
1782         char *tx_power;
1783         unsigned int i;
1784
1785         /*
1786          * Initialize all hw fields.
1787          */
1788         rt2x00dev->hw->flags =
1789             IEEE80211_HW_RX_INCLUDES_FCS |
1790             IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
1791             IEEE80211_HW_SIGNAL_DBM |
1792             IEEE80211_HW_SUPPORTS_PS |
1793             IEEE80211_HW_PS_NULLFUNC_STACK;
1794
1795         rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
1796
1797         SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
1798         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
1799                                 rt2x00_eeprom_addr(rt2x00dev,
1800                                                    EEPROM_MAC_ADDR_0));
1801
1802         /*
1803          * Initialize hw_mode information.
1804          */
1805         spec->supported_bands = SUPPORT_BAND_2GHZ;
1806         spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
1807
1808         if (rt2x00_rf(&rt2x00dev->chip, RF2522)) {
1809                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2522);
1810                 spec->channels = rf_vals_bg_2522;
1811         } else if (rt2x00_rf(&rt2x00dev->chip, RF2523)) {
1812                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2523);
1813                 spec->channels = rf_vals_bg_2523;
1814         } else if (rt2x00_rf(&rt2x00dev->chip, RF2524)) {
1815                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2524);
1816                 spec->channels = rf_vals_bg_2524;
1817         } else if (rt2x00_rf(&rt2x00dev->chip, RF2525)) {
1818                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525);
1819                 spec->channels = rf_vals_bg_2525;
1820         } else if (rt2x00_rf(&rt2x00dev->chip, RF2525E)) {
1821                 spec->num_channels = ARRAY_SIZE(rf_vals_bg_2525e);
1822                 spec->channels = rf_vals_bg_2525e;
1823         } else if (rt2x00_rf(&rt2x00dev->chip, RF5222)) {
1824                 spec->supported_bands |= SUPPORT_BAND_5GHZ;
1825                 spec->num_channels = ARRAY_SIZE(rf_vals_5222);
1826                 spec->channels = rf_vals_5222;
1827         }
1828
1829         /*
1830          * Create channel information array
1831          */
1832         info = kzalloc(spec->num_channels * sizeof(*info), GFP_KERNEL);
1833         if (!info)
1834                 return -ENOMEM;
1835
1836         spec->channels_info = info;
1837
1838         tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
1839         for (i = 0; i < 14; i++)
1840                 info[i].tx_power1 = TXPOWER_FROM_DEV(tx_power[i]);
1841
1842         if (spec->num_channels > 14) {
1843                 for (i = 14; i < spec->num_channels; i++)
1844                         info[i].tx_power1 = DEFAULT_TXPOWER;
1845         }
1846
1847         return 0;
1848 }
1849
1850 static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
1851 {
1852         int retval;
1853
1854         /*
1855          * Allocate eeprom data.
1856          */
1857         retval = rt2500usb_validate_eeprom(rt2x00dev);
1858         if (retval)
1859                 return retval;
1860
1861         retval = rt2500usb_init_eeprom(rt2x00dev);
1862         if (retval)
1863                 return retval;
1864
1865         /*
1866          * Initialize hw specifications.
1867          */
1868         retval = rt2500usb_probe_hw_mode(rt2x00dev);
1869         if (retval)
1870                 return retval;
1871
1872         /*
1873          * This device requires the atim queue
1874          */
1875         __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
1876         __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
1877         __set_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags);
1878         if (!modparam_nohwcrypt) {
1879                 __set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
1880                 __set_bit(DRIVER_REQUIRE_COPY_IV, &rt2x00dev->flags);
1881         }
1882         __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
1883
1884         /*
1885          * Set the rssi offset.
1886          */
1887         rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
1888
1889         return 0;
1890 }
1891
1892 static const struct ieee80211_ops rt2500usb_mac80211_ops = {
1893         .tx                     = rt2x00mac_tx,
1894         .start                  = rt2x00mac_start,
1895         .stop                   = rt2x00mac_stop,
1896         .add_interface          = rt2x00mac_add_interface,
1897         .remove_interface       = rt2x00mac_remove_interface,
1898         .config                 = rt2x00mac_config,
1899         .configure_filter       = rt2x00mac_configure_filter,
1900         .set_tim                = rt2x00mac_set_tim,
1901         .set_key                = rt2x00mac_set_key,
1902         .get_stats              = rt2x00mac_get_stats,
1903         .bss_info_changed       = rt2x00mac_bss_info_changed,
1904         .conf_tx                = rt2x00mac_conf_tx,
1905         .get_tx_stats           = rt2x00mac_get_tx_stats,
1906         .rfkill_poll            = rt2x00mac_rfkill_poll,
1907 };
1908
1909 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
1910         .probe_hw               = rt2500usb_probe_hw,
1911         .initialize             = rt2x00usb_initialize,
1912         .uninitialize           = rt2x00usb_uninitialize,
1913         .clear_entry            = rt2x00usb_clear_entry,
1914         .set_device_state       = rt2500usb_set_device_state,
1915         .rfkill_poll            = rt2500usb_rfkill_poll,
1916         .link_stats             = rt2500usb_link_stats,
1917         .reset_tuner            = rt2500usb_reset_tuner,
1918         .link_tuner             = rt2500usb_link_tuner,
1919         .write_tx_desc          = rt2500usb_write_tx_desc,
1920         .write_tx_data          = rt2x00usb_write_tx_data,
1921         .write_beacon           = rt2500usb_write_beacon,
1922         .get_tx_data_len        = rt2500usb_get_tx_data_len,
1923         .kick_tx_queue          = rt2500usb_kick_tx_queue,
1924         .kill_tx_queue          = rt2x00usb_kill_tx_queue,
1925         .fill_rxdone            = rt2500usb_fill_rxdone,
1926         .config_shared_key      = rt2500usb_config_key,
1927         .config_pairwise_key    = rt2500usb_config_key,
1928         .config_filter          = rt2500usb_config_filter,
1929         .config_intf            = rt2500usb_config_intf,
1930         .config_erp             = rt2500usb_config_erp,
1931         .config_ant             = rt2500usb_config_ant,
1932         .config                 = rt2500usb_config,
1933 };
1934
1935 static const struct data_queue_desc rt2500usb_queue_rx = {
1936         .entry_num              = RX_ENTRIES,
1937         .data_size              = DATA_FRAME_SIZE,
1938         .desc_size              = RXD_DESC_SIZE,
1939         .priv_size              = sizeof(struct queue_entry_priv_usb),
1940 };
1941
1942 static const struct data_queue_desc rt2500usb_queue_tx = {
1943         .entry_num              = TX_ENTRIES,
1944         .data_size              = DATA_FRAME_SIZE,
1945         .desc_size              = TXD_DESC_SIZE,
1946         .priv_size              = sizeof(struct queue_entry_priv_usb),
1947 };
1948
1949 static const struct data_queue_desc rt2500usb_queue_bcn = {
1950         .entry_num              = BEACON_ENTRIES,
1951         .data_size              = MGMT_FRAME_SIZE,
1952         .desc_size              = TXD_DESC_SIZE,
1953         .priv_size              = sizeof(struct queue_entry_priv_usb_bcn),
1954 };
1955
1956 static const struct data_queue_desc rt2500usb_queue_atim = {
1957         .entry_num              = ATIM_ENTRIES,
1958         .data_size              = DATA_FRAME_SIZE,
1959         .desc_size              = TXD_DESC_SIZE,
1960         .priv_size              = sizeof(struct queue_entry_priv_usb),
1961 };
1962
1963 static const struct rt2x00_ops rt2500usb_ops = {
1964         .name           = KBUILD_MODNAME,
1965         .max_sta_intf   = 1,
1966         .max_ap_intf    = 1,
1967         .eeprom_size    = EEPROM_SIZE,
1968         .rf_size        = RF_SIZE,
1969         .tx_queues      = NUM_TX_QUEUES,
1970         .rx             = &rt2500usb_queue_rx,
1971         .tx             = &rt2500usb_queue_tx,
1972         .bcn            = &rt2500usb_queue_bcn,
1973         .atim           = &rt2500usb_queue_atim,
1974         .lib            = &rt2500usb_rt2x00_ops,
1975         .hw             = &rt2500usb_mac80211_ops,
1976 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
1977         .debugfs        = &rt2500usb_rt2x00debug,
1978 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
1979 };
1980
1981 /*
1982  * rt2500usb module information.
1983  */
1984 static struct usb_device_id rt2500usb_device_table[] = {
1985         /* ASUS */
1986         { USB_DEVICE(0x0b05, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
1987         { USB_DEVICE(0x0b05, 0x1707), USB_DEVICE_DATA(&rt2500usb_ops) },
1988         /* Belkin */
1989         { USB_DEVICE(0x050d, 0x7050), USB_DEVICE_DATA(&rt2500usb_ops) },
1990         { USB_DEVICE(0x050d, 0x7051), USB_DEVICE_DATA(&rt2500usb_ops) },
1991         { USB_DEVICE(0x050d, 0x705a), USB_DEVICE_DATA(&rt2500usb_ops) },
1992         /* Cisco Systems */
1993         { USB_DEVICE(0x13b1, 0x000d), USB_DEVICE_DATA(&rt2500usb_ops) },
1994         { USB_DEVICE(0x13b1, 0x0011), USB_DEVICE_DATA(&rt2500usb_ops) },
1995         { USB_DEVICE(0x13b1, 0x001a), USB_DEVICE_DATA(&rt2500usb_ops) },
1996         /* CNet */
1997         { USB_DEVICE(0x1371, 0x9022), USB_DEVICE_DATA(&rt2500usb_ops) },
1998         /* Conceptronic */
1999         { USB_DEVICE(0x14b2, 0x3c02), USB_DEVICE_DATA(&rt2500usb_ops) },
2000         /* D-LINK */
2001         { USB_DEVICE(0x2001, 0x3c00), USB_DEVICE_DATA(&rt2500usb_ops) },
2002         /* Gigabyte */
2003         { USB_DEVICE(0x1044, 0x8001), USB_DEVICE_DATA(&rt2500usb_ops) },
2004         { USB_DEVICE(0x1044, 0x8007), USB_DEVICE_DATA(&rt2500usb_ops) },
2005         /* Hercules */
2006         { USB_DEVICE(0x06f8, 0xe000), USB_DEVICE_DATA(&rt2500usb_ops) },
2007         /* Melco */
2008         { USB_DEVICE(0x0411, 0x005e), USB_DEVICE_DATA(&rt2500usb_ops) },
2009         { USB_DEVICE(0x0411, 0x0066), USB_DEVICE_DATA(&rt2500usb_ops) },
2010         { USB_DEVICE(0x0411, 0x0067), USB_DEVICE_DATA(&rt2500usb_ops) },
2011         { USB_DEVICE(0x0411, 0x008b), USB_DEVICE_DATA(&rt2500usb_ops) },
2012         { USB_DEVICE(0x0411, 0x0097), USB_DEVICE_DATA(&rt2500usb_ops) },
2013         /* MSI */
2014         { USB_DEVICE(0x0db0, 0x6861), USB_DEVICE_DATA(&rt2500usb_ops) },
2015         { USB_DEVICE(0x0db0, 0x6865), USB_DEVICE_DATA(&rt2500usb_ops) },
2016         { USB_DEVICE(0x0db0, 0x6869), USB_DEVICE_DATA(&rt2500usb_ops) },
2017         /* Ralink */
2018         { USB_DEVICE(0x148f, 0x1706), USB_DEVICE_DATA(&rt2500usb_ops) },
2019         { USB_DEVICE(0x148f, 0x2570), USB_DEVICE_DATA(&rt2500usb_ops) },
2020         { USB_DEVICE(0x148f, 0x2573), USB_DEVICE_DATA(&rt2500usb_ops) },
2021         { USB_DEVICE(0x148f, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
2022         /* Sagem */
2023         { USB_DEVICE(0x079b, 0x004b), USB_DEVICE_DATA(&rt2500usb_ops) },
2024         /* Siemens */
2025         { USB_DEVICE(0x0681, 0x3c06), USB_DEVICE_DATA(&rt2500usb_ops) },
2026         /* SMC */
2027         { USB_DEVICE(0x0707, 0xee13), USB_DEVICE_DATA(&rt2500usb_ops) },
2028         /* Spairon */
2029         { USB_DEVICE(0x114b, 0x0110), USB_DEVICE_DATA(&rt2500usb_ops) },
2030         /* SURECOM */
2031         { USB_DEVICE(0x0769, 0x11f3), USB_DEVICE_DATA(&rt2500usb_ops) },
2032         /* Trust */
2033         { USB_DEVICE(0x0eb0, 0x9020), USB_DEVICE_DATA(&rt2500usb_ops) },
2034         /* VTech */
2035         { USB_DEVICE(0x0f88, 0x3012), USB_DEVICE_DATA(&rt2500usb_ops) },
2036         /* Zinwell */
2037         { USB_DEVICE(0x5a57, 0x0260), USB_DEVICE_DATA(&rt2500usb_ops) },
2038         { 0, }
2039 };
2040
2041 MODULE_AUTHOR(DRV_PROJECT);
2042 MODULE_VERSION(DRV_VERSION);
2043 MODULE_DESCRIPTION("Ralink RT2500 USB Wireless LAN driver.");
2044 MODULE_SUPPORTED_DEVICE("Ralink RT2570 USB chipset based cards");
2045 MODULE_DEVICE_TABLE(usb, rt2500usb_device_table);
2046 MODULE_LICENSE("GPL");
2047
2048 static struct usb_driver rt2500usb_driver = {
2049         .name           = KBUILD_MODNAME,
2050         .id_table       = rt2500usb_device_table,
2051         .probe          = rt2x00usb_probe,
2052         .disconnect     = rt2x00usb_disconnect,
2053         .suspend        = rt2x00usb_suspend,
2054         .resume         = rt2x00usb_resume,
2055 };
2056
2057 static int __init rt2500usb_init(void)
2058 {
2059         return usb_register(&rt2500usb_driver);
2060 }
2061
2062 static void __exit rt2500usb_exit(void)
2063 {
2064         usb_deregister(&rt2500usb_driver);
2065 }
2066
2067 module_init(rt2500usb_init);
2068 module_exit(rt2500usb_exit);