drivers/net/wireless/rt2x00/rt61pci.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: rt61pci
  23         Abstract: rt61pci device specific routines.
  24         Supported chipsets: RT2561, RT2561s, RT2661.
  25  */
  26
  27 #include <linux/crc-itu-t.h>
  28 #include <linux/delay.h>
  29 #include <linux/etherdevice.h>
  30 #include <linux/init.h>
  31 #include <linux/kernel.h>
  32 #include <linux/module.h>
  33 #include <linux/pci.h>
  34 #include <linux/eeprom_93cx6.h>
  35
  36 #include "rt2x00.h"
  37 #include "rt2x00pci.h"
  38 #include "rt61pci.h"
  39
  40 /*
  41  * Allow hardware encryption to be disabled.
  42  */
  43 static int modparam_nohwcrypt = 0;
  44 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
  45 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
  46
  47 /*
  48  * Register access.
  49  * BBP and RF register require indirect register access,
  50  * and use the CSR registers PHY_CSR3 and PHY_CSR4 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 attempt. 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  */
  58 #define WAIT_FOR_BBP(__dev, __reg) \
  59         rt2x00pci_regbusy_read((__dev), PHY_CSR3, PHY_CSR3_BUSY, (__reg))
  60 #define WAIT_FOR_RF(__dev, __reg) \
  61         rt2x00pci_regbusy_read((__dev), PHY_CSR4, PHY_CSR4_BUSY, (__reg))
  62 #define WAIT_FOR_MCU(__dev, __reg) \
  63         rt2x00pci_regbusy_read((__dev), H2M_MAILBOX_CSR, \
  64                                H2M_MAILBOX_CSR_OWNER, (__reg))
  65
  66 static void rt61pci_bbp_write(struct rt2x00_dev *rt2x00dev,
  67                               const unsigned int word, const u8 value)
  68 {
  69         u32 reg;
  70
  71         mutex_lock(&rt2x00dev->csr_mutex);
  72
  73         /*
  74          * Wait until the BBP becomes available, afterwards we
  75          * can safely write the new data into the register.
  76          */
  77         if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
  78                 reg = 0;
  79                 rt2x00_set_field32(&reg, PHY_CSR3_VALUE, value);
  80                 rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, word);
  81                 rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
  82                 rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 0);
  83
  84                 rt2x00pci_register_write(rt2x00dev, PHY_CSR3, reg);
  85         }
  86
  87         mutex_unlock(&rt2x00dev->csr_mutex);
  88 }
  89
  90 static void rt61pci_bbp_read(struct rt2x00_dev *rt2x00dev,
  91                              const unsigned int word, u8 *value)
  92 {
  93         u32 reg;
  94
  95         mutex_lock(&rt2x00dev->csr_mutex);
  96
  97         /*
  98          * Wait until the BBP becomes available, afterwards we
  99          * can safely write the read request into the register.
 100          * After the data has been written, we wait until hardware
 101          * returns the correct value, if at any time the register
 102          * doesn't become available in time, reg will be 0xffffffff
 103          * which means we return 0xff to the caller.
 104          */
 105         if (WAIT_FOR_BBP(rt2x00dev, &reg)) {
 106                 reg = 0;
 107                 rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, word);
 108                 rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
 109                 rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 1);
 110
 111                 rt2x00pci_register_write(rt2x00dev, PHY_CSR3, reg);
 112
 113                 WAIT_FOR_BBP(rt2x00dev, &reg);
 114         }
 115
 116         *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
 117
 118         mutex_unlock(&rt2x00dev->csr_mutex);
 119 }
 120
 121 static void rt61pci_rf_write(struct rt2x00_dev *rt2x00dev,
 122                              const unsigned int word, const u32 value)
 123 {
 124         u32 reg;
 125
 126         mutex_lock(&rt2x00dev->csr_mutex);
 127
 128         /*
 129          * Wait until the RF becomes available, afterwards we
 130          * can safely write the new data into the register.
 131          */
 132         if (WAIT_FOR_RF(rt2x00dev, &reg)) {
 133                 reg = 0;
 134                 rt2x00_set_field32(&reg, PHY_CSR4_VALUE, value);
 135                 rt2x00_set_field32(&reg, PHY_CSR4_NUMBER_OF_BITS, 21);
 136                 rt2x00_set_field32(&reg, PHY_CSR4_IF_SELECT, 0);
 137                 rt2x00_set_field32(&reg, PHY_CSR4_BUSY, 1);
 138
 139                 rt2x00pci_register_write(rt2x00dev, PHY_CSR4, reg);
 140                 rt2x00_rf_write(rt2x00dev, word, value);
 141         }
 142
 143         mutex_unlock(&rt2x00dev->csr_mutex);
 144 }
 145
 146 static void rt61pci_mcu_request(struct rt2x00_dev *rt2x00dev,
 147                                 const u8 command, const u8 token,
 148                                 const u8 arg0, const u8 arg1)
 149 {
 150         u32 reg;
 151
 152         mutex_lock(&rt2x00dev->csr_mutex);
 153
 154         /*
 155          * Wait until the MCU becomes available, afterwards we
 156          * can safely write the new data into the register.
 157          */
 158         if (WAIT_FOR_MCU(rt2x00dev, &reg)) {
 159                 rt2x00_set_field32(&reg, H2M_MAILBOX_CSR_OWNER, 1);
 160                 rt2x00_set_field32(&reg, H2M_MAILBOX_CSR_CMD_TOKEN, token);
 161                 rt2x00_set_field32(&reg, H2M_MAILBOX_CSR_ARG0, arg0);
 162                 rt2x00_set_field32(&reg, H2M_MAILBOX_CSR_ARG1, arg1);
 163                 rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CSR, reg);
 164
 165                 rt2x00pci_register_read(rt2x00dev, HOST_CMD_CSR, &reg);
 166                 rt2x00_set_field32(&reg, HOST_CMD_CSR_HOST_COMMAND, command);
 167                 rt2x00_set_field32(&reg, HOST_CMD_CSR_INTERRUPT_MCU, 1);
 168                 rt2x00pci_register_write(rt2x00dev, HOST_CMD_CSR, reg);
 169         }
 170
 171         mutex_unlock(&rt2x00dev->csr_mutex);
 172
 173 }
 174
 175 static void rt61pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
 176 {
 177         struct rt2x00_dev *rt2x00dev = eeprom->data;
 178         u32 reg;
 179
 180         rt2x00pci_register_read(rt2x00dev, E2PROM_CSR, &reg);
 181
 182         eeprom->reg_data_in = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_IN);
 183         eeprom->reg_data_out = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_OUT);
 184         eeprom->reg_data_clock =
 185             !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_CLOCK);
 186         eeprom->reg_chip_select =
 187             !!rt2x00_get_field32(reg, E2PROM_CSR_CHIP_SELECT);
 188 }
 189
 190 static void rt61pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
 191 {
 192         struct rt2x00_dev *rt2x00dev = eeprom->data;
 193         u32 reg = 0;
 194
 195         rt2x00_set_field32(&reg, E2PROM_CSR_DATA_IN, !!eeprom->reg_data_in);
 196         rt2x00_set_field32(&reg, E2PROM_CSR_DATA_OUT, !!eeprom->reg_data_out);
 197         rt2x00_set_field32(&reg, E2PROM_CSR_DATA_CLOCK,
 198                            !!eeprom->reg_data_clock);
 199         rt2x00_set_field32(&reg, E2PROM_CSR_CHIP_SELECT,
 200                            !!eeprom->reg_chip_select);
 201
 202         rt2x00pci_register_write(rt2x00dev, E2PROM_CSR, reg);
 203 }
 204
 205 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 206 static const struct rt2x00debug rt61pci_rt2x00debug = {
 207         .owner  = THIS_MODULE,
 208         .csr    = {
 209                 .read           = rt2x00pci_register_read,
 210                 .write          = rt2x00pci_register_write,
 211                 .flags          = RT2X00DEBUGFS_OFFSET,
 212                 .word_base      = CSR_REG_BASE,
 213                 .word_size      = sizeof(u32),
 214                 .word_count     = CSR_REG_SIZE / sizeof(u32),
 215         },
 216         .eeprom = {
 217                 .read           = rt2x00_eeprom_read,
 218                 .write          = rt2x00_eeprom_write,
 219                 .word_base      = EEPROM_BASE,
 220                 .word_size      = sizeof(u16),
 221                 .word_count     = EEPROM_SIZE / sizeof(u16),
 222         },
 223         .bbp    = {
 224                 .read           = rt61pci_bbp_read,
 225                 .write          = rt61pci_bbp_write,
 226                 .word_base      = BBP_BASE,
 227                 .word_size      = sizeof(u8),
 228                 .word_count     = BBP_SIZE / sizeof(u8),
 229         },
 230         .rf     = {
 231                 .read           = rt2x00_rf_read,
 232                 .write          = rt61pci_rf_write,
 233                 .word_base      = RF_BASE,
 234                 .word_size      = sizeof(u32),
 235                 .word_count     = RF_SIZE / sizeof(u32),
 236         },
 237 };
 238 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 239
 240 static int rt61pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 241 {
 242         u32 reg;
 243
 244         rt2x00pci_register_read(rt2x00dev, MAC_CSR13, &reg);
 245         return rt2x00_get_field32(reg, MAC_CSR13_BIT5);
 246 }
 247
 248 #ifdef CONFIG_RT2X00_LIB_LEDS
 249 static void rt61pci_brightness_set(struct led_classdev *led_cdev,
 250                                    enum led_brightness brightness)
 251 {
 252         struct rt2x00_led *led =
 253             container_of(led_cdev, struct rt2x00_led, led_dev);
 254         unsigned int enabled = brightness != LED_OFF;
 255         unsigned int a_mode =
 256             (enabled && led->rt2x00dev->curr_band == IEEE80211_BAND_5GHZ);
 257         unsigned int bg_mode =
 258             (enabled && led->rt2x00dev->curr_band == IEEE80211_BAND_2GHZ);
 259
 260         if (led->type == LED_TYPE_RADIO) {
 261                 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
 262                                    MCU_LEDCS_RADIO_STATUS, enabled);
 263
 264                 rt61pci_mcu_request(led->rt2x00dev, MCU_LED, 0xff,
 265                                     (led->rt2x00dev->led_mcu_reg & 0xff),
 266                                     ((led->rt2x00dev->led_mcu_reg >> 8)));
 267         } else if (led->type == LED_TYPE_ASSOC) {
 268                 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
 269                                    MCU_LEDCS_LINK_BG_STATUS, bg_mode);
 270                 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
 271                                    MCU_LEDCS_LINK_A_STATUS, a_mode);
 272
 273                 rt61pci_mcu_request(led->rt2x00dev, MCU_LED, 0xff,
 274                                     (led->rt2x00dev->led_mcu_reg & 0xff),
 275                                     ((led->rt2x00dev->led_mcu_reg >> 8)));
 276         } else if (led->type == LED_TYPE_QUALITY) {
 277                 /*
 278                  * The brightness is divided into 6 levels (0 - 5),
 279                  * this means we need to convert the brightness
 280                  * argument into the matching level within that range.
 281                  */
 282                 rt61pci_mcu_request(led->rt2x00dev, MCU_LED_STRENGTH, 0xff,
 283                                     brightness / (LED_FULL / 6), 0);
 284         }
 285 }
 286
 287 static int rt61pci_blink_set(struct led_classdev *led_cdev,
 288                              unsigned long *delay_on,
 289                              unsigned long *delay_off)
 290 {
 291         struct rt2x00_led *led =
 292             container_of(led_cdev, struct rt2x00_led, led_dev);
 293         u32 reg;
 294
 295         rt2x00pci_register_read(led->rt2x00dev, MAC_CSR14, &reg);
 296         rt2x00_set_field32(&reg, MAC_CSR14_ON_PERIOD, *delay_on);
 297         rt2x00_set_field32(&reg, MAC_CSR14_OFF_PERIOD, *delay_off);
 298         rt2x00pci_register_write(led->rt2x00dev, MAC_CSR14, reg);
 299
 300         return 0;
 301 }
 302
 303 static void rt61pci_init_led(struct rt2x00_dev *rt2x00dev,
 304                              struct rt2x00_led *led,
 305                              enum led_type type)
 306 {
 307         led->rt2x00dev = rt2x00dev;
 308         led->type = type;
 309         led->led_dev.brightness_set = rt61pci_brightness_set;
 310         led->led_dev.blink_set = rt61pci_blink_set;
 311         led->flags = LED_INITIALIZED;
 312 }
 313 #endif /* CONFIG_RT2X00_LIB_LEDS */
 314
 315 /*
 316  * Configuration handlers.
 317  */
 318 static int rt61pci_config_shared_key(struct rt2x00_dev *rt2x00dev,
 319                                      struct rt2x00lib_crypto *crypto,
 320                                      struct ieee80211_key_conf *key)
 321 {
 322         struct hw_key_entry key_entry;
 323         struct rt2x00_field32 field;
 324         u32 mask;
 325         u32 reg;
 326
 327         if (crypto->cmd == SET_KEY) {
 328                 /*
 329                  * rt2x00lib can't determine the correct free
 330                  * key_idx for shared keys. We have 1 register
 331                  * with key valid bits. The goal is simple, read
 332                  * the register, if that is full we have no slots
 333                  * left.
 334                  * Note that each BSS is allowed to have up to 4
 335                  * shared keys, so put a mask over the allowed
 336                  * entries.
 337                  */
 338                 mask = (0xf << crypto->bssidx);
 339
 340                 rt2x00pci_register_read(rt2x00dev, SEC_CSR0, &reg);
 341                 reg &= mask;
 342
 343                 if (reg && reg == mask)
 344                         return -ENOSPC;
 345
 346                 key->hw_key_idx += reg ? ffz(reg) : 0;
 347
 348                 /*
 349                  * Upload key to hardware
 350                  */
 351                 memcpy(key_entry.key, crypto->key,
 352                        sizeof(key_entry.key));
 353                 memcpy(key_entry.tx_mic, crypto->tx_mic,
 354                        sizeof(key_entry.tx_mic));
 355                 memcpy(key_entry.rx_mic, crypto->rx_mic,
 356                        sizeof(key_entry.rx_mic));
 357
 358                 reg = SHARED_KEY_ENTRY(key->hw_key_idx);
 359                 rt2x00pci_register_multiwrite(rt2x00dev, reg,
 360                                               &key_entry, sizeof(key_entry));
 361
 362                 /*
 363                  * The cipher types are stored over 2 registers.
 364                  * bssidx 0 and 1 keys are stored in SEC_CSR1 and
 365                  * bssidx 1 and 2 keys are stored in SEC_CSR5.
 366                  * Using the correct defines correctly will cause overhead,
 367                  * so just calculate the correct offset.
 368                  */
 369                 if (key->hw_key_idx < 8) {
 370                         field.bit_offset = (3 * key->hw_key_idx);
 371                         field.bit_mask = 0x7 << field.bit_offset;
 372
 373                         rt2x00pci_register_read(rt2x00dev, SEC_CSR1, &reg);
 374                         rt2x00_set_field32(&reg, field, crypto->cipher);
 375                         rt2x00pci_register_write(rt2x00dev, SEC_CSR1, reg);
 376                 } else {
 377                         field.bit_offset = (3 * (key->hw_key_idx - 8));
 378                         field.bit_mask = 0x7 << field.bit_offset;
 379
 380                         rt2x00pci_register_read(rt2x00dev, SEC_CSR5, &reg);
 381                         rt2x00_set_field32(&reg, field, crypto->cipher);
 382                         rt2x00pci_register_write(rt2x00dev, SEC_CSR5, reg);
 383                 }
 384
 385                 /*
 386                  * The driver does not support the IV/EIV generation
 387                  * in hardware. However it doesn't support the IV/EIV
 388                  * inside the ieee80211 frame either, but requires it
 389                  * to be provided separately for the descriptor.
 390                  * rt2x00lib will cut the IV/EIV data out of all frames
 391                  * given to us by mac80211, but we must tell mac80211
 392                  * to generate the IV/EIV data.
 393                  */
 394                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
 395         }
 396
 397         /*
 398          * SEC_CSR0 contains only single-bit fields to indicate
 399          * a particular key is valid. Because using the FIELD32()
 400          * defines directly will cause a lot of overhead, we use
 401          * a calculation to determine the correct bit directly.
 402          */
 403         mask = 1 << key->hw_key_idx;
 404
 405         rt2x00pci_register_read(rt2x00dev, SEC_CSR0, &reg);
 406         if (crypto->cmd == SET_KEY)
 407                 reg |= mask;
 408         else if (crypto->cmd == DISABLE_KEY)
 409                 reg &= ~mask;
 410         rt2x00pci_register_write(rt2x00dev, SEC_CSR0, reg);
 411
 412         return 0;
 413 }
 414
 415 static int rt61pci_config_pairwise_key(struct rt2x00_dev *rt2x00dev,
 416                                        struct rt2x00lib_crypto *crypto,
 417                                        struct ieee80211_key_conf *key)
 418 {
 419         struct hw_pairwise_ta_entry addr_entry;
 420         struct hw_key_entry key_entry;
 421         u32 mask;
 422         u32 reg;
 423
 424         if (crypto->cmd == SET_KEY) {
 425                 /*
 426                  * rt2x00lib can't determine the correct free
 427                  * key_idx for pairwise keys. We have 2 registers
 428                  * with key valid bits. The goal is simple: read
 429                  * the first register. If that is full, move to
 430                  * the next register.
 431                  * When both registers are full, we drop the key.
 432                  * Otherwise, we use the first invalid entry.
 433                  */
 434                 rt2x00pci_register_read(rt2x00dev, SEC_CSR2, &reg);
 435                 if (reg && reg == ~0) {
 436                         key->hw_key_idx = 32;
 437                         rt2x00pci_register_read(rt2x00dev, SEC_CSR3, &reg);
 438                         if (reg && reg == ~0)
 439                                 return -ENOSPC;
 440                 }
 441
 442                 key->hw_key_idx += reg ? ffz(reg) : 0;
 443
 444                 /*
 445                  * Upload key to hardware
 446                  */
 447                 memcpy(key_entry.key, crypto->key,
 448                        sizeof(key_entry.key));
 449                 memcpy(key_entry.tx_mic, crypto->tx_mic,
 450                        sizeof(key_entry.tx_mic));
 451                 memcpy(key_entry.rx_mic, crypto->rx_mic,
 452                        sizeof(key_entry.rx_mic));
 453
 454                 memset(&addr_entry, 0, sizeof(addr_entry));
 455                 memcpy(&addr_entry, crypto->address, ETH_ALEN);
 456                 addr_entry.cipher = crypto->cipher;
 457
 458                 reg = PAIRWISE_KEY_ENTRY(key->hw_key_idx);
 459                 rt2x00pci_register_multiwrite(rt2x00dev, reg,
 460                                               &key_entry, sizeof(key_entry));
 461
 462                 reg = PAIRWISE_TA_ENTRY(key->hw_key_idx);
 463                 rt2x00pci_register_multiwrite(rt2x00dev, reg,
 464                                               &addr_entry, sizeof(addr_entry));
 465
 466                 /*
 467                  * Enable pairwise lookup table for given BSS idx.
 468                  * Without this, received frames will not be decrypted
 469                  * by the hardware.
 470                  */
 471                 rt2x00pci_register_read(rt2x00dev, SEC_CSR4, &reg);
 472                 reg |= (1 << crypto->bssidx);
 473                 rt2x00pci_register_write(rt2x00dev, SEC_CSR4, reg);
 474
 475                 /*
 476                  * The driver does not support the IV/EIV generation
 477                  * in hardware. However it doesn't support the IV/EIV
 478                  * inside the ieee80211 frame either, but requires it
 479                  * to be provided seperately for the descriptor.
 480                  * rt2x00lib will cut the IV/EIV data out of all frames
 481                  * given to us by mac80211, but we must tell mac80211
 482                  * to generate the IV/EIV data.
 483                  */
 484                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
 485         }
 486
 487         /*
 488          * SEC_CSR2 and SEC_CSR3 contain only single-bit fields to indicate
 489          * a particular key is valid. Because using the FIELD32()
 490          * defines directly will cause a lot of overhead, we use
 491          * a calculation to determine the correct bit directly.
 492          */
 493         if (key->hw_key_idx < 32) {
 494                 mask = 1 << key->hw_key_idx;
 495
 496                 rt2x00pci_register_read(rt2x00dev, SEC_CSR2, &reg);
 497                 if (crypto->cmd == SET_KEY)
 498                         reg |= mask;
 499                 else if (crypto->cmd == DISABLE_KEY)
 500                         reg &= ~mask;
 501                 rt2x00pci_register_write(rt2x00dev, SEC_CSR2, reg);
 502         } else {
 503                 mask = 1 << (key->hw_key_idx - 32);
 504
 505                 rt2x00pci_register_read(rt2x00dev, SEC_CSR3, &reg);
 506                 if (crypto->cmd == SET_KEY)
 507                         reg |= mask;
 508                 else if (crypto->cmd == DISABLE_KEY)
 509                         reg &= ~mask;
 510                 rt2x00pci_register_write(rt2x00dev, SEC_CSR3, reg);
 511         }
 512
 513         return 0;
 514 }
 515
 516 static void rt61pci_config_filter(struct rt2x00_dev *rt2x00dev,
 517                                   const unsigned int filter_flags)
 518 {
 519         u32 reg;
 520
 521         /*
 522          * Start configuration steps.
 523          * Note that the version error will always be dropped
 524          * and broadcast frames will always be accepted since
 525          * there is no filter for it at this time.
 526          */
 527         rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
 528         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC,
 529                            !(filter_flags & FIF_FCSFAIL));
 530         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL,
 531                            !(filter_flags & FIF_PLCPFAIL));
 532         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL,
 533                            !(filter_flags & (FIF_CONTROL | FIF_PSPOLL)));
 534         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME,
 535                            !(filter_flags & FIF_PROMISC_IN_BSS));
 536         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS,
 537                            !(filter_flags & FIF_PROMISC_IN_BSS) &&
 538                            !rt2x00dev->intf_ap_count);
 539         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
 540         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_MULTICAST,
 541                            !(filter_flags & FIF_ALLMULTI));
 542         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_BROADCAST, 0);
 543         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS,
 544                            !(filter_flags & FIF_CONTROL));
 545         rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
 546 }
 547
 548 static void rt61pci_config_intf(struct rt2x00_dev *rt2x00dev,
 549                                 struct rt2x00_intf *intf,
 550                                 struct rt2x00intf_conf *conf,
 551                                 const unsigned int flags)
 552 {
 553         unsigned int beacon_base;
 554         u32 reg;
 555
 556         if (flags & CONFIG_UPDATE_TYPE) {
 557                 /*
 558                  * Clear current synchronisation setup.
 559                  * For the Beacon base registers, we only need to clear
 560                  * the first byte since that byte contains the VALID and OWNER
 561                  * bits which (when set to 0) will invalidate the entire beacon.
 562                  */
 563                 beacon_base = HW_BEACON_OFFSET(intf->beacon->entry_idx);
 564                 rt2x00pci_register_write(rt2x00dev, beacon_base, 0);
 565
 566                 /*
 567                  * Enable synchronisation.
 568                  */
 569                 rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
 570                 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
 571                 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, conf->sync);
 572                 rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
 573                 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
 574         }
 575
 576         if (flags & CONFIG_UPDATE_MAC) {
 577                 reg = le32_to_cpu(conf->mac[1]);
 578                 rt2x00_set_field32(&reg, MAC_CSR3_UNICAST_TO_ME_MASK, 0xff);
 579                 conf->mac[1] = cpu_to_le32(reg);
 580
 581                 rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR2,
 582                                               conf->mac, sizeof(conf->mac));
 583         }
 584
 585         if (flags & CONFIG_UPDATE_BSSID) {
 586                 reg = le32_to_cpu(conf->bssid[1]);
 587                 rt2x00_set_field32(&reg, MAC_CSR5_BSS_ID_MASK, 3);
 588                 conf->bssid[1] = cpu_to_le32(reg);
 589
 590                 rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR4,
 591                                               conf->bssid, sizeof(conf->bssid));
 592         }
 593 }
 594
 595 static void rt61pci_config_erp(struct rt2x00_dev *rt2x00dev,
 596                                struct rt2x00lib_erp *erp)
 597 {
 598         u32 reg;
 599
 600         rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
 601         rt2x00_set_field32(&reg, TXRX_CSR0_RX_ACK_TIMEOUT, 0x32);
 602         rt2x00_set_field32(&reg, TXRX_CSR0_TSF_OFFSET, IEEE80211_HEADER);
 603         rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
 604
 605         rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, &reg);
 606         rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_ENABLE, 1);
 607         rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE,
 608                            !!erp->short_preamble);
 609         rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg);
 610
 611         rt2x00pci_register_write(rt2x00dev, TXRX_CSR5, erp->basic_rates);
 612
 613         rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
 614         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_INTERVAL,
 615                            erp->beacon_int * 16);
 616         rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
 617
 618         rt2x00pci_register_read(rt2x00dev, MAC_CSR9, &reg);
 619         rt2x00_set_field32(&reg, MAC_CSR9_SLOT_TIME, erp->slot_time);
 620         rt2x00pci_register_write(rt2x00dev, MAC_CSR9, reg);
 621
 622         rt2x00pci_register_read(rt2x00dev, MAC_CSR8, &reg);
 623         rt2x00_set_field32(&reg, MAC_CSR8_SIFS, erp->sifs);
 624         rt2x00_set_field32(&reg, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
 625         rt2x00_set_field32(&reg, MAC_CSR8_EIFS, erp->eifs);
 626         rt2x00pci_register_write(rt2x00dev, MAC_CSR8, reg);
 627 }
 628
 629 static void rt61pci_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
 630                                       struct antenna_setup *ant)
 631 {
 632         u8 r3;
 633         u8 r4;
 634         u8 r77;
 635
 636         rt61pci_bbp_read(rt2x00dev, 3, &r3);
 637         rt61pci_bbp_read(rt2x00dev, 4, &r4);
 638         rt61pci_bbp_read(rt2x00dev, 77, &r77);
 639
 640         rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, rt2x00_rf(rt2x00dev, RF5325));
 641
 642         /*
 643          * Configure the RX antenna.
 644          */
 645         switch (ant->rx) {
 646         case ANTENNA_HW_DIVERSITY:
 647                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 2);
 648                 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
 649                                   (rt2x00dev->curr_band != IEEE80211_BAND_5GHZ));
 650                 break;
 651         case ANTENNA_A:
 652                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
 653                 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
 654                 if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ)
 655                         rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
 656                 else
 657                         rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
 658                 break;
 659         case ANTENNA_B:
 660         default:
 661                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
 662                 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
 663                 if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ)
 664                         rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
 665                 else
 666                         rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
 667                 break;
 668         }
 669
 670         rt61pci_bbp_write(rt2x00dev, 77, r77);
 671         rt61pci_bbp_write(rt2x00dev, 3, r3);
 672         rt61pci_bbp_write(rt2x00dev, 4, r4);
 673 }
 674
 675 static void rt61pci_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
 676                                       struct antenna_setup *ant)
 677 {
 678         u8 r3;
 679         u8 r4;
 680         u8 r77;
 681
 682         rt61pci_bbp_read(rt2x00dev, 3, &r3);
 683         rt61pci_bbp_read(rt2x00dev, 4, &r4);
 684         rt61pci_bbp_read(rt2x00dev, 77, &r77);
 685
 686         rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, rt2x00_rf(rt2x00dev, RF2529));
 687         rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
 688                           !test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
 689
 690         /*
 691          * Configure the RX antenna.
 692          */
 693         switch (ant->rx) {
 694         case ANTENNA_HW_DIVERSITY:
 695                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 2);
 696                 break;
 697         case ANTENNA_A:
 698                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
 699                 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
 700                 break;
 701         case ANTENNA_B:
 702         default:
 703                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
 704                 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
 705                 break;
 706         }
 707
 708         rt61pci_bbp_write(rt2x00dev, 77, r77);
 709         rt61pci_bbp_write(rt2x00dev, 3, r3);
 710         rt61pci_bbp_write(rt2x00dev, 4, r4);
 711 }
 712
 713 static void rt61pci_config_antenna_2529_rx(struct rt2x00_dev *rt2x00dev,
 714                                            const int p1, const int p2)
 715 {
 716         u32 reg;
 717
 718         rt2x00pci_register_read(rt2x00dev, MAC_CSR13, &reg);
 719
 720         rt2x00_set_field32(&reg, MAC_CSR13_BIT4, p1);
 721         rt2x00_set_field32(&reg, MAC_CSR13_BIT12, 0);
 722
 723         rt2x00_set_field32(&reg, MAC_CSR13_BIT3, !p2);
 724         rt2x00_set_field32(&reg, MAC_CSR13_BIT11, 0);
 725
 726         rt2x00pci_register_write(rt2x00dev, MAC_CSR13, reg);
 727 }
 728
 729 static void rt61pci_config_antenna_2529(struct rt2x00_dev *rt2x00dev,
 730                                         struct antenna_setup *ant)
 731 {
 732         u8 r3;
 733         u8 r4;
 734         u8 r77;
 735
 736         rt61pci_bbp_read(rt2x00dev, 3, &r3);
 737         rt61pci_bbp_read(rt2x00dev, 4, &r4);
 738         rt61pci_bbp_read(rt2x00dev, 77, &r77);
 739
 740         /*
 741          * Configure the RX antenna.
 742          */
 743         switch (ant->rx) {
 744         case ANTENNA_A:
 745                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
 746                 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
 747                 rt61pci_config_antenna_2529_rx(rt2x00dev, 0, 0);
 748                 break;
 749         case ANTENNA_HW_DIVERSITY:
 750                 /*
 751                  * FIXME: Antenna selection for the rf 2529 is very confusing
 752                  * in the legacy driver. Just default to antenna B until the
 753                  * legacy code can be properly translated into rt2x00 code.
 754                  */
 755         case ANTENNA_B:
 756         default:
 757                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
 758                 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
 759                 rt61pci_config_antenna_2529_rx(rt2x00dev, 1, 1);
 760                 break;
 761         }
 762
 763         rt61pci_bbp_write(rt2x00dev, 77, r77);
 764         rt61pci_bbp_write(rt2x00dev, 3, r3);
 765         rt61pci_bbp_write(rt2x00dev, 4, r4);
 766 }
 767
 768 struct antenna_sel {
 769         u8 word;
 770         /*
 771          * value[0] -> non-LNA
 772          * value[1] -> LNA
 773          */
 774         u8 value[2];
 775 };
 776
 777 static const struct antenna_sel antenna_sel_a[] = {
 778         { 96,  { 0x58, 0x78 } },
 779         { 104, { 0x38, 0x48 } },
 780         { 75,  { 0xfe, 0x80 } },
 781         { 86,  { 0xfe, 0x80 } },
 782         { 88,  { 0xfe, 0x80 } },
 783         { 35,  { 0x60, 0x60 } },
 784         { 97,  { 0x58, 0x58 } },
 785         { 98,  { 0x58, 0x58 } },
 786 };
 787
 788 static const struct antenna_sel antenna_sel_bg[] = {
 789         { 96,  { 0x48, 0x68 } },
 790         { 104, { 0x2c, 0x3c } },
 791         { 75,  { 0xfe, 0x80 } },
 792         { 86,  { 0xfe, 0x80 } },
 793         { 88,  { 0xfe, 0x80 } },
 794         { 35,  { 0x50, 0x50 } },
 795         { 97,  { 0x48, 0x48 } },
 796         { 98,  { 0x48, 0x48 } },
 797 };
 798
 799 static void rt61pci_config_ant(struct rt2x00_dev *rt2x00dev,
 800                                struct antenna_setup *ant)
 801 {
 802         const struct antenna_sel *sel;
 803         unsigned int lna;
 804         unsigned int i;
 805         u32 reg;
 806
 807         /*
 808          * We should never come here because rt2x00lib is supposed
 809          * to catch this and send us the correct antenna explicitely.
 810          */
 811         BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
 812                ant->tx == ANTENNA_SW_DIVERSITY);
 813
 814         if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
 815                 sel = antenna_sel_a;
 816                 lna = test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
 817         } else {
 818                 sel = antenna_sel_bg;
 819                 lna = test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
 820         }
 821
 822         for (i = 0; i < ARRAY_SIZE(antenna_sel_a); i++)
 823                 rt61pci_bbp_write(rt2x00dev, sel[i].word, sel[i].value[lna]);
 824
 825         rt2x00pci_register_read(rt2x00dev, PHY_CSR0, &reg);
 826
 827         rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG,
 828                            rt2x00dev->curr_band == IEEE80211_BAND_2GHZ);
 829         rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A,
 830                            rt2x00dev->curr_band == IEEE80211_BAND_5GHZ);
 831
 832         rt2x00pci_register_write(rt2x00dev, PHY_CSR0, reg);
 833
 834         if (rt2x00_rf(rt2x00dev, RF5225) || rt2x00_rf(rt2x00dev, RF5325))
 835                 rt61pci_config_antenna_5x(rt2x00dev, ant);
 836         else if (rt2x00_rf(rt2x00dev, RF2527))
 837                 rt61pci_config_antenna_2x(rt2x00dev, ant);
 838         else if (rt2x00_rf(rt2x00dev, RF2529)) {
 839                 if (test_bit(CONFIG_DOUBLE_ANTENNA, &rt2x00dev->flags))
 840                         rt61pci_config_antenna_2x(rt2x00dev, ant);
 841                 else
 842                         rt61pci_config_antenna_2529(rt2x00dev, ant);
 843         }
 844 }
 845
 846 static void rt61pci_config_lna_gain(struct rt2x00_dev *rt2x00dev,
 847                                     struct rt2x00lib_conf *libconf)
 848 {
 849         u16 eeprom;
 850         short lna_gain = 0;
 851
 852         if (libconf->conf->channel->band == IEEE80211_BAND_2GHZ) {
 853                 if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags))
 854                         lna_gain += 14;
 855
 856                 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &eeprom);
 857                 lna_gain -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_BG_1);
 858         } else {
 859                 if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags))
 860                         lna_gain += 14;
 861
 862                 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &eeprom);
 863                 lna_gain -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_A_1);
 864         }
 865
 866         rt2x00dev->lna_gain = lna_gain;
 867 }
 868
 869 static void rt61pci_config_channel(struct rt2x00_dev *rt2x00dev,
 870                                    struct rf_channel *rf, const int txpower)
 871 {
 872         u8 r3;
 873         u8 r94;
 874         u8 smart;
 875
 876         rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 877         rt2x00_set_field32(&rf->rf4, RF4_FREQ_OFFSET, rt2x00dev->freq_offset);
 878
 879         smart = !(rt2x00_rf(rt2x00dev, RF5225) || rt2x00_rf(rt2x00dev, RF2527));
 880
 881         rt61pci_bbp_read(rt2x00dev, 3, &r3);
 882         rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, smart);
 883         rt61pci_bbp_write(rt2x00dev, 3, r3);
 884
 885         r94 = 6;
 886         if (txpower > MAX_TXPOWER && txpower <= (MAX_TXPOWER + r94))
 887                 r94 += txpower - MAX_TXPOWER;
 888         else if (txpower < MIN_TXPOWER && txpower >= (MIN_TXPOWER - r94))
 889                 r94 += txpower;
 890         rt61pci_bbp_write(rt2x00dev, 94, r94);
 891
 892         rt61pci_rf_write(rt2x00dev, 1, rf->rf1);
 893         rt61pci_rf_write(rt2x00dev, 2, rf->rf2);
 894         rt61pci_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
 895         rt61pci_rf_write(rt2x00dev, 4, rf->rf4);
 896
 897         udelay(200);
 898
 899         rt61pci_rf_write(rt2x00dev, 1, rf->rf1);
 900         rt61pci_rf_write(rt2x00dev, 2, rf->rf2);
 901         rt61pci_rf_write(rt2x00dev, 3, rf->rf3 | 0x00000004);
 902         rt61pci_rf_write(rt2x00dev, 4, rf->rf4);
 903
 904         udelay(200);
 905
 906         rt61pci_rf_write(rt2x00dev, 1, rf->rf1);
 907         rt61pci_rf_write(rt2x00dev, 2, rf->rf2);
 908         rt61pci_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
 909         rt61pci_rf_write(rt2x00dev, 4, rf->rf4);
 910
 911         msleep(1);
 912 }
 913
 914 static void rt61pci_config_txpower(struct rt2x00_dev *rt2x00dev,
 915                                    const int txpower)
 916 {
 917         struct rf_channel rf;
 918
 919         rt2x00_rf_read(rt2x00dev, 1, &rf.rf1);
 920         rt2x00_rf_read(rt2x00dev, 2, &rf.rf2);
 921         rt2x00_rf_read(rt2x00dev, 3, &rf.rf3);
 922         rt2x00_rf_read(rt2x00dev, 4, &rf.rf4);
 923
 924         rt61pci_config_channel(rt2x00dev, &rf, txpower);
 925 }
 926
 927 static void rt61pci_config_retry_limit(struct rt2x00_dev *rt2x00dev,
 928                                     struct rt2x00lib_conf *libconf)
 929 {
 930         u32 reg;
 931
 932         rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, &reg);
 933         rt2x00_set_field32(&reg, TXRX_CSR4_LONG_RETRY_LIMIT,
 934                            libconf->conf->long_frame_max_tx_count);
 935         rt2x00_set_field32(&reg, TXRX_CSR4_SHORT_RETRY_LIMIT,
 936                            libconf->conf->short_frame_max_tx_count);
 937         rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg);
 938 }
 939
 940 static void rt61pci_config_ps(struct rt2x00_dev *rt2x00dev,
 941                                 struct rt2x00lib_conf *libconf)
 942 {
 943         enum dev_state state =
 944             (libconf->conf->flags & IEEE80211_CONF_PS) ?
 945                 STATE_SLEEP : STATE_AWAKE;
 946         u32 reg;
 947
 948         if (state == STATE_SLEEP) {
 949                 rt2x00pci_register_read(rt2x00dev, MAC_CSR11, &reg);
 950                 rt2x00_set_field32(&reg, MAC_CSR11_DELAY_AFTER_TBCN,
 951                                    rt2x00dev->beacon_int - 10);
 952                 rt2x00_set_field32(&reg, MAC_CSR11_TBCN_BEFORE_WAKEUP,
 953                                    libconf->conf->listen_interval - 1);
 954                 rt2x00_set_field32(&reg, MAC_CSR11_WAKEUP_LATENCY, 5);
 955
 956                 /* We must first disable autowake before it can be enabled */
 957                 rt2x00_set_field32(&reg, MAC_CSR11_AUTOWAKE, 0);
 958                 rt2x00pci_register_write(rt2x00dev, MAC_CSR11, reg);
 959
 960                 rt2x00_set_field32(&reg, MAC_CSR11_AUTOWAKE, 1);
 961                 rt2x00pci_register_write(rt2x00dev, MAC_CSR11, reg);
 962
 963                 rt2x00pci_register_write(rt2x00dev, SOFT_RESET_CSR, 0x00000005);
 964                 rt2x00pci_register_write(rt2x00dev, IO_CNTL_CSR, 0x0000001c);
 965                 rt2x00pci_register_write(rt2x00dev, PCI_USEC_CSR, 0x00000060);
 966
 967                 rt61pci_mcu_request(rt2x00dev, MCU_SLEEP, 0xff, 0, 0);
 968         } else {
 969                 rt2x00pci_register_read(rt2x00dev, MAC_CSR11, &reg);
 970                 rt2x00_set_field32(&reg, MAC_CSR11_DELAY_AFTER_TBCN, 0);
 971                 rt2x00_set_field32(&reg, MAC_CSR11_TBCN_BEFORE_WAKEUP, 0);
 972                 rt2x00_set_field32(&reg, MAC_CSR11_AUTOWAKE, 0);
 973                 rt2x00_set_field32(&reg, MAC_CSR11_WAKEUP_LATENCY, 0);
 974                 rt2x00pci_register_write(rt2x00dev, MAC_CSR11, reg);
 975
 976                 rt2x00pci_register_write(rt2x00dev, SOFT_RESET_CSR, 0x00000007);
 977                 rt2x00pci_register_write(rt2x00dev, IO_CNTL_CSR, 0x00000018);
 978                 rt2x00pci_register_write(rt2x00dev, PCI_USEC_CSR, 0x00000020);
 979
 980                 rt61pci_mcu_request(rt2x00dev, MCU_WAKEUP, 0xff, 0, 0);
 981         }
 982 }
 983
 984 static void rt61pci_config(struct rt2x00_dev *rt2x00dev,
 985                            struct rt2x00lib_conf *libconf,
 986                            const unsigned int flags)
 987 {
 988         /* Always recalculate LNA gain before changing configuration */
 989         rt61pci_config_lna_gain(rt2x00dev, libconf);
 990
 991         if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
 992                 rt61pci_config_channel(rt2x00dev, &libconf->rf,
 993                                        libconf->conf->power_level);
 994         if ((flags & IEEE80211_CONF_CHANGE_POWER) &&
 995             !(flags & IEEE80211_CONF_CHANGE_CHANNEL))
 996                 rt61pci_config_txpower(rt2x00dev, libconf->conf->power_level);
 997         if (flags & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
 998                 rt61pci_config_retry_limit(rt2x00dev, libconf);
 999         if (flags & IEEE80211_CONF_CHANGE_PS)
1000                 rt61pci_config_ps(rt2x00dev, libconf);
1001 }
1002
1003 /*
1004  * Link tuning
1005  */
1006 static void rt61pci_link_stats(struct rt2x00_dev *rt2x00dev,
1007                                struct link_qual *qual)
1008 {
1009         u32 reg;
1010
1011         /*
1012          * Update FCS error count from register.
1013          */
1014         rt2x00pci_register_read(rt2x00dev, STA_CSR0, &reg);
1015         qual->rx_failed = rt2x00_get_field32(reg, STA_CSR0_FCS_ERROR);
1016
1017         /*
1018          * Update False CCA count from register.
1019          */
1020         rt2x00pci_register_read(rt2x00dev, STA_CSR1, &reg);
1021         qual->false_cca = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
1022 }
1023
1024 static inline void rt61pci_set_vgc(struct rt2x00_dev *rt2x00dev,
1025                                    struct link_qual *qual, u8 vgc_level)
1026 {
1027         if (qual->vgc_level != vgc_level) {
1028                 rt61pci_bbp_write(rt2x00dev, 17, vgc_level);
1029                 qual->vgc_level = vgc_level;
1030                 qual->vgc_level_reg = vgc_level;
1031         }
1032 }
1033
1034 static void rt61pci_reset_tuner(struct rt2x00_dev *rt2x00dev,
1035                                 struct link_qual *qual)
1036 {
1037         rt61pci_set_vgc(rt2x00dev, qual, 0x20);
1038 }
1039
1040 static void rt61pci_link_tuner(struct rt2x00_dev *rt2x00dev,
1041                                struct link_qual *qual, const u32 count)
1042 {
1043         u8 up_bound;
1044         u8 low_bound;
1045
1046         /*
1047          * Determine r17 bounds.
1048          */
1049         if (rt2x00dev->rx_status.band == IEEE80211_BAND_5GHZ) {
1050                 low_bound = 0x28;
1051                 up_bound = 0x48;
1052                 if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) {
1053                         low_bound += 0x10;
1054                         up_bound += 0x10;
1055                 }
1056         } else {
1057                 low_bound = 0x20;
1058                 up_bound = 0x40;
1059                 if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags)) {
1060                         low_bound += 0x10;
1061                         up_bound += 0x10;
1062                 }
1063         }
1064
1065         /*
1066          * If we are not associated, we should go straight to the
1067          * dynamic CCA tuning.
1068          */
1069         if (!rt2x00dev->intf_associated)
1070                 goto dynamic_cca_tune;
1071
1072         /*
1073          * Special big-R17 for very short distance
1074          */
1075         if (qual->rssi >= -35) {
1076                 rt61pci_set_vgc(rt2x00dev, qual, 0x60);
1077                 return;
1078         }
1079
1080         /*
1081          * Special big-R17 for short distance
1082          */
1083         if (qual->rssi >= -58) {
1084                 rt61pci_set_vgc(rt2x00dev, qual, up_bound);
1085                 return;
1086         }
1087
1088         /*
1089          * Special big-R17 for middle-short distance
1090          */
1091         if (qual->rssi >= -66) {
1092                 rt61pci_set_vgc(rt2x00dev, qual, low_bound + 0x10);
1093                 return;
1094         }
1095
1096         /*
1097          * Special mid-R17 for middle distance
1098          */
1099         if (qual->rssi >= -74) {
1100                 rt61pci_set_vgc(rt2x00dev, qual, low_bound + 0x08);
1101                 return;
1102         }
1103
1104         /*
1105          * Special case: Change up_bound based on the rssi.
1106          * Lower up_bound when rssi is weaker then -74 dBm.
1107          */
1108         up_bound -= 2 * (-74 - qual->rssi);
1109         if (low_bound > up_bound)
1110                 up_bound = low_bound;
1111
1112         if (qual->vgc_level > up_bound) {
1113                 rt61pci_set_vgc(rt2x00dev, qual, up_bound);
1114                 return;
1115         }
1116
1117 dynamic_cca_tune:
1118
1119         /*
1120          * r17 does not yet exceed upper limit, continue and base
1121          * the r17 tuning on the false CCA count.
1122          */
1123         if ((qual->false_cca > 512) && (qual->vgc_level < up_bound))
1124                 rt61pci_set_vgc(rt2x00dev, qual, ++qual->vgc_level);
1125         else if ((qual->false_cca < 100) && (qual->vgc_level > low_bound))
1126                 rt61pci_set_vgc(rt2x00dev, qual, --qual->vgc_level);
1127 }
1128
1129 /*
1130  * Firmware functions
1131  */
1132 static char *rt61pci_get_firmware_name(struct rt2x00_dev *rt2x00dev)
1133 {
1134         char *fw_name;
1135
1136         switch (rt2x00dev->chip.rt) {
1137         case RT2561:
1138                 fw_name = FIRMWARE_RT2561;
1139                 break;
1140         case RT2561s:
1141                 fw_name = FIRMWARE_RT2561s;
1142                 break;
1143         case RT2661:
1144                 fw_name = FIRMWARE_RT2661;
1145                 break;
1146         default:
1147                 fw_name = NULL;
1148                 break;
1149         }
1150
1151         return fw_name;
1152 }
1153
1154 static int rt61pci_check_firmware(struct rt2x00_dev *rt2x00dev,
1155                                   const u8 *data, const size_t len)
1156 {
1157         u16 fw_crc;
1158         u16 crc;
1159
1160         /*
1161          * Only support 8kb firmware files.
1162          */
1163         if (len != 8192)
1164                 return FW_BAD_LENGTH;
1165
1166         /*
1167          * The last 2 bytes in the firmware array are the crc checksum itself.
1168          * This means that we should never pass those 2 bytes to the crc
1169          * algorithm.
1170          */
1171         fw_crc = (data[len - 2] << 8 | data[len - 1]);
1172
1173         /*
1174          * Use the crc itu-t algorithm.
1175          */
1176         crc = crc_itu_t(0, data, len - 2);
1177         crc = crc_itu_t_byte(crc, 0);
1178         crc = crc_itu_t_byte(crc, 0);
1179
1180         return (fw_crc == crc) ? FW_OK : FW_BAD_CRC;
1181 }
1182
1183 static int rt61pci_load_firmware(struct rt2x00_dev *rt2x00dev,
1184                                  const u8 *data, const size_t len)
1185 {
1186         int i;
1187         u32 reg;
1188
1189         /*
1190          * Wait for stable hardware.
1191          */
1192         for (i = 0; i < 100; i++) {
1193                 rt2x00pci_register_read(rt2x00dev, MAC_CSR0, &reg);
1194                 if (reg)
1195                         break;
1196                 msleep(1);
1197         }
1198
1199         if (!reg) {
1200                 ERROR(rt2x00dev, "Unstable hardware.\n");
1201                 return -EBUSY;
1202         }
1203
1204         /*
1205          * Prepare MCU and mailbox for firmware loading.
1206          */
1207         reg = 0;
1208         rt2x00_set_field32(&reg, MCU_CNTL_CSR_RESET, 1);
1209         rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
1210         rt2x00pci_register_write(rt2x00dev, M2H_CMD_DONE_CSR, 0xffffffff);
1211         rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
1212         rt2x00pci_register_write(rt2x00dev, HOST_CMD_CSR, 0);
1213
1214         /*
1215          * Write firmware to device.
1216          */
1217         reg = 0;
1218         rt2x00_set_field32(&reg, MCU_CNTL_CSR_RESET, 1);
1219         rt2x00_set_field32(&reg, MCU_CNTL_CSR_SELECT_BANK, 1);
1220         rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
1221
1222         rt2x00pci_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
1223                                       data, len);
1224
1225         rt2x00_set_field32(&reg, MCU_CNTL_CSR_SELECT_BANK, 0);
1226         rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
1227
1228         rt2x00_set_field32(&reg, MCU_CNTL_CSR_RESET, 0);
1229         rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
1230
1231         for (i = 0; i < 100; i++) {
1232                 rt2x00pci_register_read(rt2x00dev, MCU_CNTL_CSR, &reg);
1233                 if (rt2x00_get_field32(reg, MCU_CNTL_CSR_READY))
1234                         break;
1235                 msleep(1);
1236         }
1237
1238         if (i == 100) {
1239                 ERROR(rt2x00dev, "MCU Control register not ready.\n");
1240                 return -EBUSY;
1241         }
1242
1243         /*
1244          * Hardware needs another millisecond before it is ready.
1245          */
1246         msleep(1);
1247
1248         /*
1249          * Reset MAC and BBP registers.
1250          */
1251         reg = 0;
1252         rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 1);
1253         rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 1);
1254         rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1255
1256         rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
1257         rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 0);
1258         rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 0);
1259         rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1260
1261         rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
1262         rt2x00_set_field32(&reg, MAC_CSR1_HOST_READY, 1);
1263         rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1264
1265         return 0;
1266 }
1267
1268 /*
1269  * Initialization functions.
1270  */
1271 static bool rt61pci_get_entry_state(struct queue_entry *entry)
1272 {
1273         struct queue_entry_priv_pci *entry_priv = entry->priv_data;
1274         u32 word;
1275
1276         if (entry->queue->qid == QID_RX) {
1277                 rt2x00_desc_read(entry_priv->desc, 0, &word);
1278
1279                 return rt2x00_get_field32(word, RXD_W0_OWNER_NIC);
1280         } else {
1281                 rt2x00_desc_read(entry_priv->desc, 0, &word);
1282
1283                 return (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
1284                         rt2x00_get_field32(word, TXD_W0_VALID));
1285         }
1286 }
1287
1288 static void rt61pci_clear_entry(struct queue_entry *entry)
1289 {
1290         struct queue_entry_priv_pci *entry_priv = entry->priv_data;
1291         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1292         u32 word;
1293
1294         if (entry->queue->qid == QID_RX) {
1295                 rt2x00_desc_read(entry_priv->desc, 5, &word);
1296                 rt2x00_set_field32(&word, RXD_W5_BUFFER_PHYSICAL_ADDRESS,
1297                                    skbdesc->skb_dma);
1298                 rt2x00_desc_write(entry_priv->desc, 5, word);
1299
1300                 rt2x00_desc_read(entry_priv->desc, 0, &word);
1301                 rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
1302                 rt2x00_desc_write(entry_priv->desc, 0, word);
1303         } else {
1304                 rt2x00_desc_read(entry_priv->desc, 0, &word);
1305                 rt2x00_set_field32(&word, TXD_W0_VALID, 0);
1306                 rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
1307                 rt2x00_desc_write(entry_priv->desc, 0, word);
1308         }
1309 }
1310
1311 static int rt61pci_init_queues(struct rt2x00_dev *rt2x00dev)
1312 {
1313         struct queue_entry_priv_pci *entry_priv;
1314         u32 reg;
1315
1316         /*
1317          * Initialize registers.
1318          */
1319         rt2x00pci_register_read(rt2x00dev, TX_RING_CSR0, &reg);
1320         rt2x00_set_field32(&reg, TX_RING_CSR0_AC0_RING_SIZE,
1321                            rt2x00dev->tx[0].limit);
1322         rt2x00_set_field32(&reg, TX_RING_CSR0_AC1_RING_SIZE,
1323                            rt2x00dev->tx[1].limit);
1324         rt2x00_set_field32(&reg, TX_RING_CSR0_AC2_RING_SIZE,
1325                            rt2x00dev->tx[2].limit);
1326         rt2x00_set_field32(&reg, TX_RING_CSR0_AC3_RING_SIZE,
1327                            rt2x00dev->tx[3].limit);
1328         rt2x00pci_register_write(rt2x00dev, TX_RING_CSR0, reg);
1329
1330         rt2x00pci_register_read(rt2x00dev, TX_RING_CSR1, &reg);
1331         rt2x00_set_field32(&reg, TX_RING_CSR1_TXD_SIZE,
1332                            rt2x00dev->tx[0].desc_size / 4);
1333         rt2x00pci_register_write(rt2x00dev, TX_RING_CSR1, reg);
1334
1335         entry_priv = rt2x00dev->tx[0].entries[0].priv_data;
1336         rt2x00pci_register_read(rt2x00dev, AC0_BASE_CSR, &reg);
1337         rt2x00_set_field32(&reg, AC0_BASE_CSR_RING_REGISTER,
1338                            entry_priv->desc_dma);
1339         rt2x00pci_register_write(rt2x00dev, AC0_BASE_CSR, reg);
1340
1341         entry_priv = rt2x00dev->tx[1].entries[0].priv_data;
1342         rt2x00pci_register_read(rt2x00dev, AC1_BASE_CSR, &reg);
1343         rt2x00_set_field32(&reg, AC1_BASE_CSR_RING_REGISTER,
1344                            entry_priv->desc_dma);
1345         rt2x00pci_register_write(rt2x00dev, AC1_BASE_CSR, reg);
1346
1347         entry_priv = rt2x00dev->tx[2].entries[0].priv_data;
1348         rt2x00pci_register_read(rt2x00dev, AC2_BASE_CSR, &reg);
1349         rt2x00_set_field32(&reg, AC2_BASE_CSR_RING_REGISTER,
1350                            entry_priv->desc_dma);
1351         rt2x00pci_register_write(rt2x00dev, AC2_BASE_CSR, reg);
1352
1353         entry_priv = rt2x00dev->tx[3].entries[0].priv_data;
1354         rt2x00pci_register_read(rt2x00dev, AC3_BASE_CSR, &reg);
1355         rt2x00_set_field32(&reg, AC3_BASE_CSR_RING_REGISTER,
1356                            entry_priv->desc_dma);
1357         rt2x00pci_register_write(rt2x00dev, AC3_BASE_CSR, reg);
1358
1359         rt2x00pci_register_read(rt2x00dev, RX_RING_CSR, &reg);
1360         rt2x00_set_field32(&reg, RX_RING_CSR_RING_SIZE, rt2x00dev->rx->limit);
1361         rt2x00_set_field32(&reg, RX_RING_CSR_RXD_SIZE,
1362                            rt2x00dev->rx->desc_size / 4);
1363         rt2x00_set_field32(&reg, RX_RING_CSR_RXD_WRITEBACK_SIZE, 4);
1364         rt2x00pci_register_write(rt2x00dev, RX_RING_CSR, reg);
1365
1366         entry_priv = rt2x00dev->rx->entries[0].priv_data;
1367         rt2x00pci_register_read(rt2x00dev, RX_BASE_CSR, &reg);
1368         rt2x00_set_field32(&reg, RX_BASE_CSR_RING_REGISTER,
1369                            entry_priv->desc_dma);
1370         rt2x00pci_register_write(rt2x00dev, RX_BASE_CSR, reg);
1371
1372         rt2x00pci_register_read(rt2x00dev, TX_DMA_DST_CSR, &reg);
1373         rt2x00_set_field32(&reg, TX_DMA_DST_CSR_DEST_AC0, 2);
1374         rt2x00_set_field32(&reg, TX_DMA_DST_CSR_DEST_AC1, 2);
1375         rt2x00_set_field32(&reg, TX_DMA_DST_CSR_DEST_AC2, 2);
1376         rt2x00_set_field32(&reg, TX_DMA_DST_CSR_DEST_AC3, 2);
1377         rt2x00pci_register_write(rt2x00dev, TX_DMA_DST_CSR, reg);
1378
1379         rt2x00pci_register_read(rt2x00dev, LOAD_TX_RING_CSR, &reg);
1380         rt2x00_set_field32(&reg, LOAD_TX_RING_CSR_LOAD_TXD_AC0, 1);
1381         rt2x00_set_field32(&reg, LOAD_TX_RING_CSR_LOAD_TXD_AC1, 1);
1382         rt2x00_set_field32(&reg, LOAD_TX_RING_CSR_LOAD_TXD_AC2, 1);
1383         rt2x00_set_field32(&reg, LOAD_TX_RING_CSR_LOAD_TXD_AC3, 1);
1384         rt2x00pci_register_write(rt2x00dev, LOAD_TX_RING_CSR, reg);
1385
1386         rt2x00pci_register_read(rt2x00dev, RX_CNTL_CSR, &reg);
1387         rt2x00_set_field32(&reg, RX_CNTL_CSR_LOAD_RXD, 1);
1388         rt2x00pci_register_write(rt2x00dev, RX_CNTL_CSR, reg);
1389
1390         return 0;
1391 }
1392
1393 static int rt61pci_init_registers(struct rt2x00_dev *rt2x00dev)
1394 {
1395         u32 reg;
1396
1397         rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
1398         rt2x00_set_field32(&reg, TXRX_CSR0_AUTO_TX_SEQ, 1);
1399         rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX, 0);
1400         rt2x00_set_field32(&reg, TXRX_CSR0_TX_WITHOUT_WAITING, 0);
1401         rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
1402
1403         rt2x00pci_register_read(rt2x00dev, TXRX_CSR1, &reg);
1404         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID0, 47); /* CCK Signal */
1405         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID0_VALID, 1);
1406         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID1, 30); /* Rssi */
1407         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID1_VALID, 1);
1408         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID2, 42); /* OFDM Rate */
1409         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID2_VALID, 1);
1410         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID3, 30); /* Rssi */
1411         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID3_VALID, 1);
1412         rt2x00pci_register_write(rt2x00dev, TXRX_CSR1, reg);
1413
1414         /*
1415          * CCK TXD BBP registers
1416          */
1417         rt2x00pci_register_read(rt2x00dev, TXRX_CSR2, &reg);
1418         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID0, 13);
1419         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID0_VALID, 1);
1420         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID1, 12);
1421         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID1_VALID, 1);
1422         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID2, 11);
1423         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID2_VALID, 1);
1424         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID3, 10);
1425         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID3_VALID, 1);
1426         rt2x00pci_register_write(rt2x00dev, TXRX_CSR2, reg);
1427
1428         /*
1429          * OFDM TXD BBP registers
1430          */
1431         rt2x00pci_register_read(rt2x00dev, TXRX_CSR3, &reg);
1432         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID0, 7);
1433         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID0_VALID, 1);
1434         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID1, 6);
1435         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID1_VALID, 1);
1436         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID2, 5);
1437         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID2_VALID, 1);
1438         rt2x00pci_register_write(rt2x00dev, TXRX_CSR3, reg);
1439
1440         rt2x00pci_register_read(rt2x00dev, TXRX_CSR7, &reg);
1441         rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_6MBS, 59);
1442         rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_9MBS, 53);
1443         rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_12MBS, 49);
1444         rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_18MBS, 46);
1445         rt2x00pci_register_write(rt2x00dev, TXRX_CSR7, reg);
1446
1447         rt2x00pci_register_read(rt2x00dev, TXRX_CSR8, &reg);
1448         rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_24MBS, 44);
1449         rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_36MBS, 42);
1450         rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_48MBS, 42);
1451         rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_54MBS, 42);
1452         rt2x00pci_register_write(rt2x00dev, TXRX_CSR8, reg);
1453
1454         rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
1455         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_INTERVAL, 0);
1456         rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 0);
1457         rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 0);
1458         rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 0);
1459         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
1460         rt2x00_set_field32(&reg, TXRX_CSR9_TIMESTAMP_COMPENSATE, 0);
1461         rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
1462
1463         rt2x00pci_register_write(rt2x00dev, TXRX_CSR15, 0x0000000f);
1464
1465         rt2x00pci_register_write(rt2x00dev, MAC_CSR6, 0x00000fff);
1466
1467         rt2x00pci_register_read(rt2x00dev, MAC_CSR9, &reg);
1468         rt2x00_set_field32(&reg, MAC_CSR9_CW_SELECT, 0);
1469         rt2x00pci_register_write(rt2x00dev, MAC_CSR9, reg);
1470
1471         rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x0000071c);
1472
1473         if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
1474                 return -EBUSY;
1475
1476         rt2x00pci_register_write(rt2x00dev, MAC_CSR13, 0x0000e000);
1477
1478         /*
1479          * Invalidate all Shared Keys (SEC_CSR0),
1480          * and clear the Shared key Cipher algorithms (SEC_CSR1 & SEC_CSR5)
1481          */
1482         rt2x00pci_register_write(rt2x00dev, SEC_CSR0, 0x00000000);
1483         rt2x00pci_register_write(rt2x00dev, SEC_CSR1, 0x00000000);
1484         rt2x00pci_register_write(rt2x00dev, SEC_CSR5, 0x00000000);
1485
1486         rt2x00pci_register_write(rt2x00dev, PHY_CSR1, 0x000023b0);
1487         rt2x00pci_register_write(rt2x00dev, PHY_CSR5, 0x060a100c);
1488         rt2x00pci_register_write(rt2x00dev, PHY_CSR6, 0x00080606);
1489         rt2x00pci_register_write(rt2x00dev, PHY_CSR7, 0x00000a08);
1490
1491         rt2x00pci_register_write(rt2x00dev, PCI_CFG_CSR, 0x28ca4404);
1492
1493         rt2x00pci_register_write(rt2x00dev, TEST_MODE_CSR, 0x00000200);
1494
1495         rt2x00pci_register_write(rt2x00dev, M2H_CMD_DONE_CSR, 0xffffffff);
1496
1497         /*
1498          * Clear all beacons
1499          * For the Beacon base registers we only need to clear
1500          * the first byte since that byte contains the VALID and OWNER
1501          * bits which (when set to 0) will invalidate the entire beacon.
1502          */
1503         rt2x00pci_register_write(rt2x00dev, HW_BEACON_BASE0, 0);
1504         rt2x00pci_register_write(rt2x00dev, HW_BEACON_BASE1, 0);
1505         rt2x00pci_register_write(rt2x00dev, HW_BEACON_BASE2, 0);
1506         rt2x00pci_register_write(rt2x00dev, HW_BEACON_BASE3, 0);
1507
1508         /*
1509          * We must clear the error counters.
1510          * These registers are cleared on read,
1511          * so we may pass a useless variable to store the value.
1512          */
1513         rt2x00pci_register_read(rt2x00dev, STA_CSR0, &reg);
1514         rt2x00pci_register_read(rt2x00dev, STA_CSR1, &reg);
1515         rt2x00pci_register_read(rt2x00dev, STA_CSR2, &reg);
1516
1517         /*
1518          * Reset MAC and BBP registers.
1519          */
1520         rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
1521         rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 1);
1522         rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 1);
1523         rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1524
1525         rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
1526         rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 0);
1527         rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 0);
1528         rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1529
1530         rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
1531         rt2x00_set_field32(&reg, MAC_CSR1_HOST_READY, 1);
1532         rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1533
1534         return 0;
1535 }
1536
1537 static int rt61pci_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
1538 {
1539         unsigned int i;
1540         u8 value;
1541
1542         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1543                 rt61pci_bbp_read(rt2x00dev, 0, &value);
1544                 if ((value != 0xff) && (value != 0x00))
1545                         return 0;
1546                 udelay(REGISTER_BUSY_DELAY);
1547         }
1548
1549         ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
1550         return -EACCES;
1551 }
1552
1553 static int rt61pci_init_bbp(struct rt2x00_dev *rt2x00dev)
1554 {
1555         unsigned int i;
1556         u16 eeprom;
1557         u8 reg_id;
1558         u8 value;
1559
1560         if (unlikely(rt61pci_wait_bbp_ready(rt2x00dev)))
1561                 return -EACCES;
1562
1563         rt61pci_bbp_write(rt2x00dev, 3, 0x00);
1564         rt61pci_bbp_write(rt2x00dev, 15, 0x30);
1565         rt61pci_bbp_write(rt2x00dev, 21, 0xc8);
1566         rt61pci_bbp_write(rt2x00dev, 22, 0x38);
1567         rt61pci_bbp_write(rt2x00dev, 23, 0x06);
1568         rt61pci_bbp_write(rt2x00dev, 24, 0xfe);
1569         rt61pci_bbp_write(rt2x00dev, 25, 0x0a);
1570         rt61pci_bbp_write(rt2x00dev, 26, 0x0d);
1571         rt61pci_bbp_write(rt2x00dev, 34, 0x12);
1572         rt61pci_bbp_write(rt2x00dev, 37, 0x07);
1573         rt61pci_bbp_write(rt2x00dev, 39, 0xf8);
1574         rt61pci_bbp_write(rt2x00dev, 41, 0x60);
1575         rt61pci_bbp_write(rt2x00dev, 53, 0x10);
1576         rt61pci_bbp_write(rt2x00dev, 54, 0x18);
1577         rt61pci_bbp_write(rt2x00dev, 60, 0x10);
1578         rt61pci_bbp_write(rt2x00dev, 61, 0x04);
1579         rt61pci_bbp_write(rt2x00dev, 62, 0x04);
1580         rt61pci_bbp_write(rt2x00dev, 75, 0xfe);
1581         rt61pci_bbp_write(rt2x00dev, 86, 0xfe);
1582         rt61pci_bbp_write(rt2x00dev, 88, 0xfe);
1583         rt61pci_bbp_write(rt2x00dev, 90, 0x0f);
1584         rt61pci_bbp_write(rt2x00dev, 99, 0x00);
1585         rt61pci_bbp_write(rt2x00dev, 102, 0x16);
1586         rt61pci_bbp_write(rt2x00dev, 107, 0x04);
1587
1588         for (i = 0; i < EEPROM_BBP_SIZE; i++) {
1589                 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
1590
1591                 if (eeprom != 0xffff && eeprom != 0x0000) {
1592                         reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
1593                         value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
1594                         rt61pci_bbp_write(rt2x00dev, reg_id, value);
1595                 }
1596         }
1597
1598         return 0;
1599 }
1600
1601 /*
1602  * Device state switch handlers.
1603  */
1604 static void rt61pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
1605                               enum dev_state state)
1606 {
1607         u32 reg;
1608
1609         rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
1610         rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX,
1611                            (state == STATE_RADIO_RX_OFF) ||
1612                            (state == STATE_RADIO_RX_OFF_LINK));
1613         rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
1614 }
1615
1616 static void rt61pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
1617                                enum dev_state state)
1618 {
1619         int mask = (state == STATE_RADIO_IRQ_OFF);
1620         u32 reg;
1621
1622         /*
1623          * When interrupts are being enabled, the interrupt registers
1624          * should clear the register to assure a clean state.
1625          */
1626         if (state == STATE_RADIO_IRQ_ON) {
1627                 rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
1628                 rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
1629
1630                 rt2x00pci_register_read(rt2x00dev, MCU_INT_SOURCE_CSR, &reg);
1631                 rt2x00pci_register_write(rt2x00dev, MCU_INT_SOURCE_CSR, reg);
1632         }
1633
1634         /*
1635          * Only toggle the interrupts bits we are going to use.
1636          * Non-checked interrupt bits are disabled by default.
1637          */
1638         rt2x00pci_register_read(rt2x00dev, INT_MASK_CSR, &reg);
1639         rt2x00_set_field32(&reg, INT_MASK_CSR_TXDONE, mask);
1640         rt2x00_set_field32(&reg, INT_MASK_CSR_RXDONE, mask);
1641         rt2x00_set_field32(&reg, INT_MASK_CSR_ENABLE_MITIGATION, mask);
1642         rt2x00_set_field32(&reg, INT_MASK_CSR_MITIGATION_PERIOD, 0xff);
1643         rt2x00pci_register_write(rt2x00dev, INT_MASK_CSR, reg);
1644
1645         rt2x00pci_register_read(rt2x00dev, MCU_INT_MASK_CSR, &reg);
1646         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_0, mask);
1647         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_1, mask);
1648         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_2, mask);
1649         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_3, mask);
1650         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_4, mask);
1651         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_5, mask);
1652         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_6, mask);
1653         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_7, mask);
1654         rt2x00pci_register_write(rt2x00dev, MCU_INT_MASK_CSR, reg);
1655 }
1656
1657 static int rt61pci_enable_radio(struct rt2x00_dev *rt2x00dev)
1658 {
1659         u32 reg;
1660
1661         /*
1662          * Initialize all registers.
1663          */
1664         if (unlikely(rt61pci_init_queues(rt2x00dev) ||
1665                      rt61pci_init_registers(rt2x00dev) ||
1666                      rt61pci_init_bbp(rt2x00dev)))
1667                 return -EIO;
1668
1669         /*
1670          * Enable RX.
1671          */
1672         rt2x00pci_register_read(rt2x00dev, RX_CNTL_CSR, &reg);
1673         rt2x00_set_field32(&reg, RX_CNTL_CSR_ENABLE_RX_DMA, 1);
1674         rt2x00pci_register_write(rt2x00dev, RX_CNTL_CSR, reg);
1675
1676         return 0;
1677 }
1678
1679 static void rt61pci_disable_radio(struct rt2x00_dev *rt2x00dev)
1680 {
1681         /*
1682          * Disable power
1683          */
1684         rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
1685 }
1686
1687 static int rt61pci_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state)
1688 {
1689         u32 reg;
1690         unsigned int i;
1691         char put_to_sleep;
1692
1693         put_to_sleep = (state != STATE_AWAKE);
1694
1695         rt2x00pci_register_read(rt2x00dev, MAC_CSR12, &reg);
1696         rt2x00_set_field32(&reg, MAC_CSR12_FORCE_WAKEUP, !put_to_sleep);
1697         rt2x00_set_field32(&reg, MAC_CSR12_PUT_TO_SLEEP, put_to_sleep);
1698         rt2x00pci_register_write(rt2x00dev, MAC_CSR12, reg);
1699
1700         /*
1701          * Device is not guaranteed to be in the requested state yet.
1702          * We must wait until the register indicates that the
1703          * device has entered the correct state.
1704          */
1705         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1706                 rt2x00pci_register_read(rt2x00dev, MAC_CSR12, &reg);
1707                 state = rt2x00_get_field32(reg, MAC_CSR12_BBP_CURRENT_STATE);
1708                 if (state == !put_to_sleep)
1709                         return 0;
1710                 msleep(10);
1711         }
1712
1713         return -EBUSY;
1714 }
1715
1716 static int rt61pci_set_device_state(struct rt2x00_dev *rt2x00dev,
1717                                     enum dev_state state)
1718 {
1719         int retval = 0;
1720
1721         switch (state) {
1722         case STATE_RADIO_ON:
1723                 retval = rt61pci_enable_radio(rt2x00dev);
1724                 break;
1725         case STATE_RADIO_OFF:
1726                 rt61pci_disable_radio(rt2x00dev);
1727                 break;
1728         case STATE_RADIO_RX_ON:
1729         case STATE_RADIO_RX_ON_LINK:
1730         case STATE_RADIO_RX_OFF:
1731         case STATE_RADIO_RX_OFF_LINK:
1732                 rt61pci_toggle_rx(rt2x00dev, state);
1733                 break;
1734         case STATE_RADIO_IRQ_ON:
1735         case STATE_RADIO_IRQ_OFF:
1736                 rt61pci_toggle_irq(rt2x00dev, state);
1737                 break;
1738         case STATE_DEEP_SLEEP:
1739         case STATE_SLEEP:
1740         case STATE_STANDBY:
1741         case STATE_AWAKE:
1742                 retval = rt61pci_set_state(rt2x00dev, state);
1743                 break;
1744         default:
1745                 retval = -ENOTSUPP;
1746                 break;
1747         }
1748
1749         if (unlikely(retval))
1750                 ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
1751                       state, retval);
1752
1753         return retval;
1754 }
1755
1756 /*
1757  * TX descriptor initialization
1758  */
1759 static void rt61pci_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1760                                   struct sk_buff *skb,
1761                                   struct txentry_desc *txdesc)
1762 {
1763         struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1764         __le32 *txd = skbdesc->desc;
1765         u32 word;
1766
1767         /*
1768          * Start writing the descriptor words.
1769          */
1770         rt2x00_desc_read(txd, 1, &word);
1771         rt2x00_set_field32(&word, TXD_W1_HOST_Q_ID, txdesc->queue);
1772         rt2x00_set_field32(&word, TXD_W1_AIFSN, txdesc->aifs);
1773         rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1774         rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1775         rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, txdesc->iv_offset);
1776         rt2x00_set_field32(&word, TXD_W1_HW_SEQUENCE,
1777                            test_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags));
1778         rt2x00_set_field32(&word, TXD_W1_BUFFER_COUNT, 1);
1779         rt2x00_desc_write(txd, 1, word);
1780
1781         rt2x00_desc_read(txd, 2, &word);
1782         rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1783         rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1784         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1785         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1786         rt2x00_desc_write(txd, 2, word);
1787
1788         if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags)) {
1789                 _rt2x00_desc_write(txd, 3, skbdesc->iv[0]);
1790                 _rt2x00_desc_write(txd, 4, skbdesc->iv[1]);
1791         }
1792
1793         rt2x00_desc_read(txd, 5, &word);
1794         rt2x00_set_field32(&word, TXD_W5_PID_TYPE, skbdesc->entry->queue->qid);
1795         rt2x00_set_field32(&word, TXD_W5_PID_SUBTYPE,
1796                            skbdesc->entry->entry_idx);
1797         rt2x00_set_field32(&word, TXD_W5_TX_POWER,
1798                            TXPOWER_TO_DEV(rt2x00dev->tx_power));
1799         rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1);
1800         rt2x00_desc_write(txd, 5, word);
1801
1802         rt2x00_desc_read(txd, 6, &word);
1803         rt2x00_set_field32(&word, TXD_W6_BUFFER_PHYSICAL_ADDRESS,
1804                            skbdesc->skb_dma);
1805         rt2x00_desc_write(txd, 6, word);
1806
1807         if (skbdesc->desc_len > TXINFO_SIZE) {
1808                 rt2x00_desc_read(txd, 11, &word);
1809                 rt2x00_set_field32(&word, TXD_W11_BUFFER_LENGTH0, skb->len);
1810                 rt2x00_desc_write(txd, 11, word);
1811         }
1812
1813         rt2x00_desc_read(txd, 0, &word);
1814         rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1);
1815         rt2x00_set_field32(&word, TXD_W0_VALID, 1);
1816         rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1817                            test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1818         rt2x00_set_field32(&word, TXD_W0_ACK,
1819                            test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1820         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1821                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1822         rt2x00_set_field32(&word, TXD_W0_OFDM,
1823                            (txdesc->rate_mode == RATE_MODE_OFDM));
1824         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1825         rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
1826                            test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));
1827         rt2x00_set_field32(&word, TXD_W0_TKIP_MIC,
1828                            test_bit(ENTRY_TXD_ENCRYPT_MMIC, &txdesc->flags));
1829         rt2x00_set_field32(&word, TXD_W0_KEY_TABLE,
1830                            test_bit(ENTRY_TXD_ENCRYPT_PAIRWISE, &txdesc->flags));
1831         rt2x00_set_field32(&word, TXD_W0_KEY_INDEX, txdesc->key_idx);
1832         rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skb->len);
1833         rt2x00_set_field32(&word, TXD_W0_BURST,
1834                            test_bit(ENTRY_TXD_BURST, &txdesc->flags));
1835         rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, txdesc->cipher);
1836         rt2x00_desc_write(txd, 0, word);
1837 }
1838
1839 /*
1840  * TX data initialization
1841  */
1842 static void rt61pci_write_beacon(struct queue_entry *entry)
1843 {
1844         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1845         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
1846         unsigned int beacon_base;
1847         u32 reg;
1848
1849         /*
1850          * Disable beaconing while we are reloading the beacon data,
1851          * otherwise we might be sending out invalid data.
1852          */
1853         rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
1854         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
1855         rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
1856
1857         /*
1858          * Write entire beacon with descriptor to register.
1859          */
1860         beacon_base = HW_BEACON_OFFSET(entry->entry_idx);
1861         rt2x00pci_register_multiwrite(rt2x00dev,
1862                                       beacon_base,
1863                                       skbdesc->desc, skbdesc->desc_len);
1864         rt2x00pci_register_multiwrite(rt2x00dev,
1865                                       beacon_base + skbdesc->desc_len,
1866                                       entry->skb->data, entry->skb->len);
1867
1868         /*
1869          * Clean up beacon skb.
1870          */
1871         dev_kfree_skb_any(entry->skb);
1872         entry->skb = NULL;
1873 }
1874
1875 static void rt61pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1876                                   const enum data_queue_qid queue)
1877 {
1878         u32 reg;
1879
1880         if (queue == QID_BEACON) {
1881                 /*
1882                  * For Wi-Fi faily generated beacons between participating
1883                  * stations. Set TBTT phase adaptive adjustment step to 8us.
1884                  */
1885                 rt2x00pci_register_write(rt2x00dev, TXRX_CSR10, 0x00001008);
1886
1887                 rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
1888                 if (!rt2x00_get_field32(reg, TXRX_CSR9_BEACON_GEN)) {
1889                         rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
1890                         rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
1891                         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 1);
1892                         rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
1893                 }
1894                 return;
1895         }
1896
1897         rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, &reg);
1898         rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_AC0, (queue == QID_AC_BE));
1899         rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_AC1, (queue == QID_AC_BK));
1900         rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_AC2, (queue == QID_AC_VI));
1901         rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_AC3, (queue == QID_AC_VO));
1902         rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
1903 }
1904
1905 static void rt61pci_kill_tx_queue(struct rt2x00_dev *rt2x00dev,
1906                                   const enum data_queue_qid qid)
1907 {
1908         u32 reg;
1909
1910         if (qid == QID_BEACON) {
1911                 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, 0);
1912                 return;
1913         }
1914
1915         rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, &reg);
1916         rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC0, (qid == QID_AC_BE));
1917         rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC1, (qid == QID_AC_BK));
1918         rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC2, (qid == QID_AC_VI));
1919         rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC3, (qid == QID_AC_VO));
1920         rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
1921 }
1922
1923 /*
1924  * RX control handlers
1925  */
1926 static int rt61pci_agc_to_rssi(struct rt2x00_dev *rt2x00dev, int rxd_w1)
1927 {
1928         u8 offset = rt2x00dev->lna_gain;
1929         u8 lna;
1930
1931         lna = rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_LNA);
1932         switch (lna) {
1933         case 3:
1934                 offset += 90;
1935                 break;
1936         case 2:
1937                 offset += 74;
1938                 break;
1939         case 1:
1940                 offset += 64;
1941                 break;
1942         default:
1943                 return 0;
1944         }
1945
1946         if (rt2x00dev->rx_status.band == IEEE80211_BAND_5GHZ) {
1947                 if (lna == 3 || lna == 2)
1948                         offset += 10;
1949         }
1950
1951         return rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_AGC) * 2 - offset;
1952 }
1953
1954 static void rt61pci_fill_rxdone(struct queue_entry *entry,
1955                                 struct rxdone_entry_desc *rxdesc)
1956 {
1957         struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
1958         struct queue_entry_priv_pci *entry_priv = entry->priv_data;
1959         u32 word0;
1960         u32 word1;
1961
1962         rt2x00_desc_read(entry_priv->desc, 0, &word0);
1963         rt2x00_desc_read(entry_priv->desc, 1, &word1);
1964
1965         if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1966                 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1967
1968         if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) {
1969                 rxdesc->cipher =
1970                     rt2x00_get_field32(word0, RXD_W0_CIPHER_ALG);
1971                 rxdesc->cipher_status =
1972                     rt2x00_get_field32(word0, RXD_W0_CIPHER_ERROR);
1973         }
1974
1975         if (rxdesc->cipher != CIPHER_NONE) {
1976                 _rt2x00_desc_read(entry_priv->desc, 2, &rxdesc->iv[0]);
1977                 _rt2x00_desc_read(entry_priv->desc, 3, &rxdesc->iv[1]);
1978                 rxdesc->dev_flags |= RXDONE_CRYPTO_IV;
1979
1980                 _rt2x00_desc_read(entry_priv->desc, 4, &rxdesc->icv);
1981                 rxdesc->dev_flags |= RXDONE_CRYPTO_ICV;
1982
1983                 /*
1984                  * Hardware has stripped IV/EIV data from 802.11 frame during
1985                  * decryption. It has provided the data separately but rt2x00lib
1986                  * should decide if it should be reinserted.
1987                  */
1988                 rxdesc->flags |= RX_FLAG_IV_STRIPPED;
1989
1990                 /*
1991                  * FIXME: Legacy driver indicates that the frame does
1992                  * contain the Michael Mic. Unfortunately, in rt2x00
1993                  * the MIC seems to be missing completely...
1994                  */
1995                 rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
1996
1997                 if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
1998                         rxdesc->flags |= RX_FLAG_DECRYPTED;
1999                 else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
2000                         rxdesc->flags |= RX_FLAG_MMIC_ERROR;
2001         }
2002
2003         /*
2004          * Obtain the status about this packet.
2005          * When frame was received with an OFDM bitrate,
2006          * the signal is the PLCP value. If it was received with
2007          * a CCK bitrate the signal is the rate in 100kbit/s.
2008          */
2009         rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
2010         rxdesc->rssi = rt61pci_agc_to_rssi(rt2x00dev, word1);
2011         rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
2012
2013         if (rt2x00_get_field32(word0, RXD_W0_OFDM))
2014                 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
2015         else
2016                 rxdesc->dev_flags |= RXDONE_SIGNAL_BITRATE;
2017         if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
2018                 rxdesc->dev_flags |= RXDONE_MY_BSS;
2019 }
2020
2021 /*
2022  * Interrupt functions.
2023  */
2024 static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
2025 {
2026         struct data_queue *queue;
2027         struct queue_entry *entry;
2028         struct queue_entry *entry_done;
2029         struct queue_entry_priv_pci *entry_priv;
2030         struct txdone_entry_desc txdesc;
2031         u32 word;
2032         u32 reg;
2033         u32 old_reg;
2034         int type;
2035         int index;
2036
2037         /*
2038          * During each loop we will compare the freshly read
2039          * STA_CSR4 register value with the value read from
2040          * the previous loop. If the 2 values are equal then
2041          * we should stop processing because the chance is
2042          * quite big that the device has been unplugged and
2043          * we risk going into an endless loop.
2044          */
2045         old_reg = 0;
2046
2047         while (1) {
2048                 rt2x00pci_register_read(rt2x00dev, STA_CSR4, &reg);
2049                 if (!rt2x00_get_field32(reg, STA_CSR4_VALID))
2050                         break;
2051
2052                 if (old_reg == reg)
2053                         break;
2054                 old_reg = reg;
2055
2056                 /*
2057                  * Skip this entry when it contains an invalid
2058                  * queue identication number.
2059                  */
2060                 type = rt2x00_get_field32(reg, STA_CSR4_PID_TYPE);
2061                 queue = rt2x00queue_get_queue(rt2x00dev, type);
2062                 if (unlikely(!queue))
2063                         continue;
2064
2065                 /*
2066                  * Skip this entry when it contains an invalid
2067                  * index number.
2068                  */
2069                 index = rt2x00_get_field32(reg, STA_CSR4_PID_SUBTYPE);
2070                 if (unlikely(index >= queue->limit))
2071                         continue;
2072
2073                 entry = &queue->entries[index];
2074                 entry_priv = entry->priv_data;
2075                 rt2x00_desc_read(entry_priv->desc, 0, &word);
2076
2077                 if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
2078                     !rt2x00_get_field32(word, TXD_W0_VALID))
2079                         return;
2080
2081                 entry_done = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
2082                 while (entry != entry_done) {
2083                         /* Catch up.
2084                          * Just report any entries we missed as failed.
2085                          */
2086                         WARNING(rt2x00dev,
2087                                 "TX status report missed for entry %d\n",
2088                                 entry_done->entry_idx);
2089
2090                         txdesc.flags = 0;
2091                         __set_bit(TXDONE_UNKNOWN, &txdesc.flags);
2092                         txdesc.retry = 0;
2093
2094                         rt2x00lib_txdone(entry_done, &txdesc);
2095                         entry_done = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
2096                 }
2097
2098                 /*
2099                  * Obtain the status about this packet.
2100                  */
2101                 txdesc.flags = 0;
2102                 switch (rt2x00_get_field32(reg, STA_CSR4_TX_RESULT)) {
2103                 case 0: /* Success, maybe with retry */
2104                         __set_bit(TXDONE_SUCCESS, &txdesc.flags);
2105                         break;
2106                 case 6: /* Failure, excessive retries */
2107                         __set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
2108                         /* Don't break, this is a failed frame! */
2109                 default: /* Failure */
2110                         __set_bit(TXDONE_FAILURE, &txdesc.flags);
2111                 }
2112                 txdesc.retry = rt2x00_get_field32(reg, STA_CSR4_RETRY_COUNT);
2113
2114                 rt2x00lib_txdone(entry, &txdesc);
2115         }
2116 }
2117
2118 static irqreturn_t rt61pci_interrupt(int irq, void *dev_instance)
2119 {
2120         struct rt2x00_dev *rt2x00dev = dev_instance;
2121         u32 reg_mcu;
2122         u32 reg;
2123
2124         /*
2125          * Get the interrupt sources & saved to local variable.
2126          * Write register value back to clear pending interrupts.
2127          */
2128         rt2x00pci_register_read(rt2x00dev, MCU_INT_SOURCE_CSR, &reg_mcu);
2129         rt2x00pci_register_write(rt2x00dev, MCU_INT_SOURCE_CSR, reg_mcu);
2130
2131         rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
2132         rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
2133
2134         if (!reg && !reg_mcu)
2135                 return IRQ_NONE;
2136
2137         if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
2138                 return IRQ_HANDLED;
2139
2140         /*
2141          * Handle interrupts, walk through all bits
2142          * and run the tasks, the bits are checked in order of
2143          * priority.
2144          */
2145
2146         /*
2147          * 1 - Rx ring done interrupt.
2148          */
2149         if (rt2x00_get_field32(reg, INT_SOURCE_CSR_RXDONE))
2150                 rt2x00pci_rxdone(rt2x00dev);
2151
2152         /*
2153          * 2 - Tx ring done interrupt.
2154          */
2155         if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TXDONE))
2156                 rt61pci_txdone(rt2x00dev);
2157
2158         /*
2159          * 3 - Handle MCU command done.
2160          */
2161         if (reg_mcu)
2162                 rt2x00pci_register_write(rt2x00dev,
2163                                          M2H_CMD_DONE_CSR, 0xffffffff);
2164
2165         return IRQ_HANDLED;
2166 }
2167
2168 /*
2169  * Device probe functions.
2170  */
2171 static int rt61pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
2172 {
2173         struct eeprom_93cx6 eeprom;
2174         u32 reg;
2175         u16 word;
2176         u8 *mac;
2177         s8 value;
2178
2179         rt2x00pci_register_read(rt2x00dev, E2PROM_CSR, &reg);
2180
2181         eeprom.data = rt2x00dev;
2182         eeprom.register_read = rt61pci_eepromregister_read;
2183         eeprom.register_write = rt61pci_eepromregister_write;
2184         eeprom.width = rt2x00_get_field32(reg, E2PROM_CSR_TYPE_93C46) ?
2185             PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
2186         eeprom.reg_data_in = 0;
2187         eeprom.reg_data_out = 0;
2188         eeprom.reg_data_clock = 0;
2189         eeprom.reg_chip_select = 0;
2190
2191         eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
2192                                EEPROM_SIZE / sizeof(u16));
2193
2194         /*
2195          * Start validation of the data that has been read.
2196          */
2197         mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
2198         if (!is_valid_ether_addr(mac)) {
2199                 random_ether_addr(mac);
2200                 EEPROM(rt2x00dev, "MAC: %pM\n", mac);
2201         }
2202
2203         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
2204         if (word == 0xffff) {
2205                 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
2206                 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
2207                                    ANTENNA_B);
2208                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
2209                                    ANTENNA_B);
2210                 rt2x00_set_field16(&word, EEPROM_ANTENNA_FRAME_TYPE, 0);
2211                 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
2212                 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
2213                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF5225);
2214                 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
2215                 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
2216         }
2217
2218         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
2219         if (word == 0xffff) {
2220                 rt2x00_set_field16(&word, EEPROM_NIC_ENABLE_DIVERSITY, 0);
2221                 rt2x00_set_field16(&word, EEPROM_NIC_TX_DIVERSITY, 0);
2222                 rt2x00_set_field16(&word, EEPROM_NIC_RX_FIXED, 0);
2223                 rt2x00_set_field16(&word, EEPROM_NIC_TX_FIXED, 0);
2224                 rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA_BG, 0);
2225                 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
2226                 rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA_A, 0);
2227                 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
2228                 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
2229         }
2230
2231         rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &word);
2232         if (word == 0xffff) {
2233                 rt2x00_set_field16(&word, EEPROM_LED_LED_MODE,
2234                                    LED_MODE_DEFAULT);
2235                 rt2x00_eeprom_write(rt2x00dev, EEPROM_LED, word);
2236                 EEPROM(rt2x00dev, "Led: 0x%04x\n", word);
2237         }
2238
2239         rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &word);
2240         if (word == 0xffff) {
2241                 rt2x00_set_field16(&word, EEPROM_FREQ_OFFSET, 0);
2242                 rt2x00_set_field16(&word, EEPROM_FREQ_SEQ, 0);
2243                 rt2x00_eeprom_write(rt2x00dev, EEPROM_FREQ, word);
2244                 EEPROM(rt2x00dev, "Freq: 0x%04x\n", word);
2245         }
2246
2247         rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &word);
2248         if (word == 0xffff) {
2249                 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
2250                 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
2251                 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
2252                 EEPROM(rt2x00dev, "RSSI OFFSET BG: 0x%04x\n", word);
2253         } else {
2254                 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_1);
2255                 if (value < -10 || value > 10)
2256                         rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
2257                 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_2);
2258                 if (value < -10 || value > 10)
2259                         rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
2260                 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
2261         }
2262
2263         rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &word);
2264         if (word == 0xffff) {
2265                 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
2266                 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
2267                 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
2268                 EEPROM(rt2x00dev, "RSSI OFFSET A: 0x%04x\n", word);
2269         } else {
2270                 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_1);
2271                 if (value < -10 || value > 10)
2272                         rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
2273                 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_2);
2274                 if (value < -10 || value > 10)
2275                         rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
2276                 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
2277         }
2278
2279         return 0;
2280 }
2281
2282 static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
2283 {
2284         u32 reg;
2285         u16 value;
2286         u16 eeprom;
2287
2288         /*
2289          * Read EEPROM word for configuration.
2290          */
2291         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
2292
2293         /*
2294          * Identify RF chipset.
2295          */
2296         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
2297         rt2x00pci_register_read(rt2x00dev, MAC_CSR0, &reg);
2298         rt2x00_set_chip_rf(rt2x00dev, value, reg);
2299         rt2x00_print_chip(rt2x00dev);
2300
2301         if (!rt2x00_rf(rt2x00dev, RF5225) &&
2302             !rt2x00_rf(rt2x00dev, RF5325) &&
2303             !rt2x00_rf(rt2x00dev, RF2527) &&
2304             !rt2x00_rf(rt2x00dev, RF2529)) {
2305                 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
2306                 return -ENODEV;
2307         }
2308
2309         /*
2310          * Determine number of antennas.
2311          */
2312         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_NUM) == 2)
2313                 __set_bit(CONFIG_DOUBLE_ANTENNA, &rt2x00dev->flags);
2314
2315         /*
2316          * Identify default antenna configuration.
2317          */
2318         rt2x00dev->default_ant.tx =
2319             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
2320         rt2x00dev->default_ant.rx =
2321             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
2322
2323         /*
2324          * Read the Frame type.
2325          */
2326         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_FRAME_TYPE))
2327                 __set_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags);
2328
2329         /*
2330          * Detect if this device has a hardware controlled radio.
2331          */
2332         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
2333                 __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
2334
2335         /*
2336          * Read frequency offset and RF programming sequence.
2337          */
2338         rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom);
2339         if (rt2x00_get_field16(eeprom, EEPROM_FREQ_SEQ))
2340                 __set_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags);
2341
2342         rt2x00dev->freq_offset = rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET);
2343
2344         /*
2345          * Read external LNA informations.
2346          */
2347         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
2348
2349         if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA_A))
2350                 __set_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
2351         if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA_BG))
2352                 __set_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
2353
2354         /*
2355          * When working with a RF2529 chip without double antenna,
2356          * the antenna settings should be gathered from the NIC
2357          * eeprom word.
2358          */
2359         if (rt2x00_rf(rt2x00dev, RF2529) &&
2360             !test_bit(CONFIG_DOUBLE_ANTENNA, &rt2x00dev->flags)) {
2361                 rt2x00dev->default_ant.rx =
2362                     ANTENNA_A + rt2x00_get_field16(eeprom, EEPROM_NIC_RX_FIXED);
2363                 rt2x00dev->default_ant.tx =
2364                     ANTENNA_B - rt2x00_get_field16(eeprom, EEPROM_NIC_TX_FIXED);
2365
2366                 if (rt2x00_get_field16(eeprom, EEPROM_NIC_TX_DIVERSITY))
2367                         rt2x00dev->default_ant.tx = ANTENNA_SW_DIVERSITY;
2368                 if (rt2x00_get_field16(eeprom, EEPROM_NIC_ENABLE_DIVERSITY))
2369                         rt2x00dev->default_ant.rx = ANTENNA_SW_DIVERSITY;
2370         }
2371
2372         /*
2373          * Store led settings, for correct led behaviour.
2374          * If the eeprom value is invalid,
2375          * switch to default led mode.
2376          */
2377 #ifdef CONFIG_RT2X00_LIB_LEDS
2378         rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom);
2379         value = rt2x00_get_field16(eeprom, EEPROM_LED_LED_MODE);
2380
2381         rt61pci_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
2382         rt61pci_init_led(rt2x00dev, &rt2x00dev->led_assoc, LED_TYPE_ASSOC);
2383         if (value == LED_MODE_SIGNAL_STRENGTH)
2384                 rt61pci_init_led(rt2x00dev, &rt2x00dev->led_qual,
2385                                  LED_TYPE_QUALITY);
2386
2387         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_LED_MODE, value);
2388         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_0,
2389                            rt2x00_get_field16(eeprom,
2390                                               EEPROM_LED_POLARITY_GPIO_0));
2391         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_1,
2392                            rt2x00_get_field16(eeprom,
2393                                               EEPROM_LED_POLARITY_GPIO_1));
2394         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_2,
2395                            rt2x00_get_field16(eeprom,
2396                                               EEPROM_LED_POLARITY_GPIO_2));
2397         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_3,
2398                            rt2x00_get_field16(eeprom,
2399                                               EEPROM_LED_POLARITY_GPIO_3));
2400         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_4,
2401                            rt2x00_get_field16(eeprom,
2402                                               EEPROM_LED_POLARITY_GPIO_4));
2403         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_ACT,
2404                            rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_ACT));
2405         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_BG,
2406                            rt2x00_get_field16(eeprom,
2407                                               EEPROM_LED_POLARITY_RDY_G));
2408         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_A,
2409                            rt2x00_get_field16(eeprom,
2410                                               EEPROM_LED_POLARITY_RDY_A));
2411 #endif /* CONFIG_RT2X00_LIB_LEDS */
2412
2413         return 0;
2414 }
2415
2416 /*
2417  * RF value list for RF5225 & RF5325
2418  * Supports: 2.4 GHz & 5.2 GHz, rf_sequence disabled
2419  */
2420 static const struct rf_channel rf_vals_noseq[] = {
2421         { 1,  0x00002ccc, 0x00004786, 0x00068455, 0x000ffa0b },
2422         { 2,  0x00002ccc, 0x00004786, 0x00068455, 0x000ffa1f },
2423         { 3,  0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa0b },
2424         { 4,  0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa1f },
2425         { 5,  0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa0b },
2426         { 6,  0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa1f },
2427         { 7,  0x00002ccc, 0x00004792, 0x00068455, 0x000ffa0b },
2428         { 8,  0x00002ccc, 0x00004792, 0x00068455, 0x000ffa1f },
2429         { 9,  0x00002ccc, 0x00004796, 0x00068455, 0x000ffa0b },
2430         { 10, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa1f },
2431         { 11, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa0b },
2432         { 12, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa1f },
2433         { 13, 0x00002ccc, 0x0000479e, 0x00068455, 0x000ffa0b },
2434         { 14, 0x00002ccc, 0x000047a2, 0x00068455, 0x000ffa13 },
2435
2436         /* 802.11 UNI / HyperLan 2 */
2437         { 36, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa23 },
2438         { 40, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa03 },
2439         { 44, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa0b },
2440         { 48, 0x00002ccc, 0x000049aa, 0x0009be55, 0x000ffa13 },
2441         { 52, 0x00002ccc, 0x000049ae, 0x0009ae55, 0x000ffa1b },
2442         { 56, 0x00002ccc, 0x000049b2, 0x0009ae55, 0x000ffa23 },
2443         { 60, 0x00002ccc, 0x000049ba, 0x0009ae55, 0x000ffa03 },
2444         { 64, 0x00002ccc, 0x000049be, 0x0009ae55, 0x000ffa0b },
2445
2446         /* 802.11 HyperLan 2 */
2447         { 100, 0x00002ccc, 0x00004a2a, 0x000bae55, 0x000ffa03 },
2448         { 104, 0x00002ccc, 0x00004a2e, 0x000bae55, 0x000ffa0b },
2449         { 108, 0x00002ccc, 0x00004a32, 0x000bae55, 0x000ffa13 },
2450         { 112, 0x00002ccc, 0x00004a36, 0x000bae55, 0x000ffa1b },
2451         { 116, 0x00002ccc, 0x00004a3a, 0x000bbe55, 0x000ffa23 },
2452         { 120, 0x00002ccc, 0x00004a82, 0x000bbe55, 0x000ffa03 },
2453         { 124, 0x00002ccc, 0x00004a86, 0x000bbe55, 0x000ffa0b },
2454         { 128, 0x00002ccc, 0x00004a8a, 0x000bbe55, 0x000ffa13 },
2455         { 132, 0x00002ccc, 0x00004a8e, 0x000bbe55, 0x000ffa1b },
2456         { 136, 0x00002ccc, 0x00004a92, 0x000bbe55, 0x000ffa23 },
2457
2458         /* 802.11 UNII */
2459         { 140, 0x00002ccc, 0x00004a9a, 0x000bbe55, 0x000ffa03 },
2460         { 149, 0x00002ccc, 0x00004aa2, 0x000bbe55, 0x000ffa1f },
2461         { 153, 0x00002ccc, 0x00004aa6, 0x000bbe55, 0x000ffa27 },
2462         { 157, 0x00002ccc, 0x00004aae, 0x000bbe55, 0x000ffa07 },
2463         { 161, 0x00002ccc, 0x00004ab2, 0x000bbe55, 0x000ffa0f },
2464         { 165, 0x00002ccc, 0x00004ab6, 0x000bbe55, 0x000ffa17 },
2465
2466         /* MMAC(Japan)J52 ch 34,38,42,46 */
2467         { 34, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa0b },
2468         { 38, 0x00002ccc, 0x0000499e, 0x0009be55, 0x000ffa13 },
2469         { 42, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa1b },
2470         { 46, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa23 },
2471 };
2472
2473 /*
2474  * RF value list for RF5225 & RF5325
2475  * Supports: 2.4 GHz & 5.2 GHz, rf_sequence enabled
2476  */
2477 static const struct rf_channel rf_vals_seq[] = {
2478         { 1,  0x00002ccc, 0x00004786, 0x00068455, 0x000ffa0b },
2479         { 2,  0x00002ccc, 0x00004786, 0x00068455, 0x000ffa1f },
2480         { 3,  0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa0b },
2481         { 4,  0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa1f },
2482         { 5,  0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa0b },
2483         { 6,  0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa1f },
2484         { 7,  0x00002ccc, 0x00004792, 0x00068455, 0x000ffa0b },
2485         { 8,  0x00002ccc, 0x00004792, 0x00068455, 0x000ffa1f },
2486         { 9,  0x00002ccc, 0x00004796, 0x00068455, 0x000ffa0b },
2487         { 10, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa1f },
2488         { 11, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa0b },
2489         { 12, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa1f },
2490         { 13, 0x00002ccc, 0x0000479e, 0x00068455, 0x000ffa0b },
2491         { 14, 0x00002ccc, 0x000047a2, 0x00068455, 0x000ffa13 },
2492
2493         /* 802.11 UNI / HyperLan 2 */
2494         { 36, 0x00002cd4, 0x0004481a, 0x00098455, 0x000c0a03 },
2495         { 40, 0x00002cd0, 0x00044682, 0x00098455, 0x000c0a03 },
2496         { 44, 0x00002cd0, 0x00044686, 0x00098455, 0x000c0a1b },
2497         { 48, 0x00002cd0, 0x0004468e, 0x00098655, 0x000c0a0b },
2498         { 52, 0x00002cd0, 0x00044692, 0x00098855, 0x000c0a23 },
2499         { 56, 0x00002cd0, 0x0004469a, 0x00098c55, 0x000c0a13 },
2500         { 60, 0x00002cd0, 0x000446a2, 0x00098e55, 0x000c0a03 },
2501         { 64, 0x00002cd0, 0x000446a6, 0x00099255, 0x000c0a1b },
2502
2503         /* 802.11 HyperLan 2 */
2504         { 100, 0x00002cd4, 0x0004489a, 0x000b9855, 0x000c0a03 },
2505         { 104, 0x00002cd4, 0x000448a2, 0x000b9855, 0x000c0a03 },
2506         { 108, 0x00002cd4, 0x000448aa, 0x000b9855, 0x000c0a03 },
2507         { 112, 0x00002cd4, 0x000448b2, 0x000b9a55, 0x000c0a03 },
2508         { 116, 0x00002cd4, 0x000448ba, 0x000b9a55, 0x000c0a03 },
2509         { 120, 0x00002cd0, 0x00044702, 0x000b9a55, 0x000c0a03 },
2510         { 124, 0x00002cd0, 0x00044706, 0x000b9a55, 0x000c0a1b },
2511         { 128, 0x00002cd0, 0x0004470e, 0x000b9c55, 0x000c0a0b },
2512         { 132, 0x00002cd0, 0x00044712, 0x000b9c55, 0x000c0a23 },
2513         { 136, 0x00002cd0, 0x0004471a, 0x000b9e55, 0x000c0a13 },
2514
2515         /* 802.11 UNII */
2516         { 140, 0x00002cd0, 0x00044722, 0x000b9e55, 0x000c0a03 },
2517         { 149, 0x00002cd0, 0x0004472e, 0x000ba255, 0x000c0a1b },
2518         { 153, 0x00002cd0, 0x00044736, 0x000ba255, 0x000c0a0b },
2519         { 157, 0x00002cd4, 0x0004490a, 0x000ba255, 0x000c0a17 },
2520         { 161, 0x00002cd4, 0x00044912, 0x000ba255, 0x000c0a17 },
2521         { 165, 0x00002cd4, 0x0004491a, 0x000ba255, 0x000c0a17 },
2522
2523         /* MMAC(Japan)J52 ch 34,38,42,46 */
2524         { 34, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000c0a0b },
2525         { 38, 0x00002ccc, 0x0000499e, 0x0009be55, 0x000c0a13 },
2526         { 42, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000c0a1b },
2527         { 46, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000c0a23 },
2528 };
2529
2530 static int rt61pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
2531 {
2532         struct hw_mode_spec *spec = &rt2x00dev->spec;
2533         struct channel_info *info;
2534         char *tx_power;
2535         unsigned int i;
2536
2537         /*
2538          * Disable powersaving as default.
2539          */
2540         rt2x00dev->hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
2541
2542         /*
2543          * Initialize all hw fields.
2544          */
2545         rt2x00dev->hw->flags =
2546             IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
2547             IEEE80211_HW_SIGNAL_DBM |
2548             IEEE80211_HW_SUPPORTS_PS |
2549             IEEE80211_HW_PS_NULLFUNC_STACK;
2550
2551         SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
2552         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
2553                                 rt2x00_eeprom_addr(rt2x00dev,
2554                                                    EEPROM_MAC_ADDR_0));
2555
2556         /*
2557          * Initialize hw_mode information.
2558          */
2559         spec->supported_bands = SUPPORT_BAND_2GHZ;
2560         spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
2561
2562         if (!test_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags)) {
2563                 spec->num_channels = 14;
2564                 spec->channels = rf_vals_noseq;
2565         } else {
2566                 spec->num_channels = 14;
2567                 spec->channels = rf_vals_seq;
2568         }
2569
2570         if (rt2x00_rf(rt2x00dev, RF5225) || rt2x00_rf(rt2x00dev, RF5325)) {
2571                 spec->supported_bands |= SUPPORT_BAND_5GHZ;
2572                 spec->num_channels = ARRAY_SIZE(rf_vals_seq);
2573         }
2574
2575         /*
2576          * Create channel information array
2577          */
2578         info = kzalloc(spec->num_channels * sizeof(*info), GFP_KERNEL);
2579         if (!info)
2580                 return -ENOMEM;
2581
2582         spec->channels_info = info;
2583
2584         tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_G_START);
2585         for (i = 0; i < 14; i++)
2586                 info[i].tx_power1 = TXPOWER_FROM_DEV(tx_power[i]);
2587
2588         if (spec->num_channels > 14) {
2589                 tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
2590                 for (i = 14; i < spec->num_channels; i++)
2591                         info[i].tx_power1 = TXPOWER_FROM_DEV(tx_power[i]);
2592         }
2593
2594         return 0;
2595 }
2596
2597 static int rt61pci_probe_hw(struct rt2x00_dev *rt2x00dev)
2598 {
2599         int retval;
2600
2601         /*
2602          * Disable power saving.
2603          */
2604         rt2x00pci_register_write(rt2x00dev, SOFT_RESET_CSR, 0x00000007);
2605
2606         /*
2607          * Allocate eeprom data.
2608          */
2609         retval = rt61pci_validate_eeprom(rt2x00dev);
2610         if (retval)
2611                 return retval;
2612
2613         retval = rt61pci_init_eeprom(rt2x00dev);
2614         if (retval)
2615                 return retval;
2616
2617         /*
2618          * Initialize hw specifications.
2619          */
2620         retval = rt61pci_probe_hw_mode(rt2x00dev);
2621         if (retval)
2622                 return retval;
2623
2624         /*
2625          * This device has multiple filters for control frames,
2626          * but has no a separate filter for PS Poll frames.
2627          */
2628         __set_bit(DRIVER_SUPPORT_CONTROL_FILTERS, &rt2x00dev->flags);
2629
2630         /*
2631          * This device requires firmware and DMA mapped skbs.
2632          */
2633         __set_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags);
2634         __set_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags);
2635         if (!modparam_nohwcrypt)
2636                 __set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
2637
2638         /*
2639          * Set the rssi offset.
2640          */
2641         rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
2642
2643         return 0;
2644 }
2645
2646 /*
2647  * IEEE80211 stack callback functions.
2648  */
2649 static int rt61pci_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
2650                            const struct ieee80211_tx_queue_params *params)
2651 {
2652         struct rt2x00_dev *rt2x00dev = hw->priv;
2653         struct data_queue *queue;
2654         struct rt2x00_field32 field;
2655         int retval;
2656         u32 reg;
2657         u32 offset;
2658
2659         /*
2660          * First pass the configuration through rt2x00lib, that will
2661          * update the queue settings and validate the input. After that
2662          * we are free to update the registers based on the value
2663          * in the queue parameter.
2664          */
2665         retval = rt2x00mac_conf_tx(hw, queue_idx, params);
2666         if (retval)
2667                 return retval;
2668
2669         /*
2670          * We only need to perform additional register initialization
2671          * for WMM queues.
2672          */
2673         if (queue_idx >= 4)
2674                 return 0;
2675
2676         queue = rt2x00queue_get_queue(rt2x00dev, queue_idx);
2677
2678         /* Update WMM TXOP register */
2679         offset = AC_TXOP_CSR0 + (sizeof(u32) * (!!(queue_idx & 2)));
2680         field.bit_offset = (queue_idx & 1) * 16;
2681         field.bit_mask = 0xffff << field.bit_offset;
2682
2683         rt2x00pci_register_read(rt2x00dev, offset, &reg);
2684         rt2x00_set_field32(&reg, field, queue->txop);
2685         rt2x00pci_register_write(rt2x00dev, offset, reg);
2686
2687         /* Update WMM registers */
2688         field.bit_offset = queue_idx * 4;
2689         field.bit_mask = 0xf << field.bit_offset;
2690
2691         rt2x00pci_register_read(rt2x00dev, AIFSN_CSR, &reg);
2692         rt2x00_set_field32(&reg, field, queue->aifs);
2693         rt2x00pci_register_write(rt2x00dev, AIFSN_CSR, reg);
2694
2695         rt2x00pci_register_read(rt2x00dev, CWMIN_CSR, &reg);
2696         rt2x00_set_field32(&reg, field, queue->cw_min);
2697         rt2x00pci_register_write(rt2x00dev, CWMIN_CSR, reg);
2698
2699         rt2x00pci_register_read(rt2x00dev, CWMAX_CSR, &reg);
2700         rt2x00_set_field32(&reg, field, queue->cw_max);
2701         rt2x00pci_register_write(rt2x00dev, CWMAX_CSR, reg);
2702
2703         return 0;
2704 }
2705
2706 static u64 rt61pci_get_tsf(struct ieee80211_hw *hw)
2707 {
2708         struct rt2x00_dev *rt2x00dev = hw->priv;
2709         u64 tsf;
2710         u32 reg;
2711
2712         rt2x00pci_register_read(rt2x00dev, TXRX_CSR13, &reg);
2713         tsf = (u64) rt2x00_get_field32(reg, TXRX_CSR13_HIGH_TSFTIMER) << 32;
2714         rt2x00pci_register_read(rt2x00dev, TXRX_CSR12, &reg);
2715         tsf |= rt2x00_get_field32(reg, TXRX_CSR12_LOW_TSFTIMER);
2716
2717         return tsf;
2718 }
2719
2720 static const struct ieee80211_ops rt61pci_mac80211_ops = {
2721         .tx                     = rt2x00mac_tx,
2722         .start                  = rt2x00mac_start,
2723         .stop                   = rt2x00mac_stop,
2724         .add_interface          = rt2x00mac_add_interface,
2725         .remove_interface       = rt2x00mac_remove_interface,
2726         .config                 = rt2x00mac_config,
2727         .configure_filter       = rt2x00mac_configure_filter,
2728         .set_tim                = rt2x00mac_set_tim,
2729         .set_key                = rt2x00mac_set_key,
2730         .get_stats              = rt2x00mac_get_stats,
2731         .bss_info_changed       = rt2x00mac_bss_info_changed,
2732         .conf_tx                = rt61pci_conf_tx,
2733         .get_tsf                = rt61pci_get_tsf,
2734         .rfkill_poll            = rt2x00mac_rfkill_poll,
2735 };
2736
2737 static const struct rt2x00lib_ops rt61pci_rt2x00_ops = {
2738         .irq_handler            = rt61pci_interrupt,
2739         .probe_hw               = rt61pci_probe_hw,
2740         .get_firmware_name      = rt61pci_get_firmware_name,
2741         .check_firmware         = rt61pci_check_firmware,
2742         .load_firmware          = rt61pci_load_firmware,
2743         .initialize             = rt2x00pci_initialize,
2744         .uninitialize           = rt2x00pci_uninitialize,
2745         .get_entry_state        = rt61pci_get_entry_state,
2746         .clear_entry            = rt61pci_clear_entry,
2747         .set_device_state       = rt61pci_set_device_state,
2748         .rfkill_poll            = rt61pci_rfkill_poll,
2749         .link_stats             = rt61pci_link_stats,
2750         .reset_tuner            = rt61pci_reset_tuner,
2751         .link_tuner             = rt61pci_link_tuner,
2752         .write_tx_desc          = rt61pci_write_tx_desc,
2753         .write_tx_data          = rt2x00pci_write_tx_data,
2754         .write_beacon           = rt61pci_write_beacon,
2755         .kick_tx_queue          = rt61pci_kick_tx_queue,
2756         .kill_tx_queue          = rt61pci_kill_tx_queue,
2757         .fill_rxdone            = rt61pci_fill_rxdone,
2758         .config_shared_key      = rt61pci_config_shared_key,
2759         .config_pairwise_key    = rt61pci_config_pairwise_key,
2760         .config_filter          = rt61pci_config_filter,
2761         .config_intf            = rt61pci_config_intf,
2762         .config_erp             = rt61pci_config_erp,
2763         .config_ant             = rt61pci_config_ant,
2764         .config                 = rt61pci_config,
2765 };
2766
2767 static const struct data_queue_desc rt61pci_queue_rx = {
2768         .entry_num              = RX_ENTRIES,
2769         .data_size              = DATA_FRAME_SIZE,
2770         .desc_size              = RXD_DESC_SIZE,
2771         .priv_size              = sizeof(struct queue_entry_priv_pci),
2772 };
2773
2774 static const struct data_queue_desc rt61pci_queue_tx = {
2775         .entry_num              = TX_ENTRIES,
2776         .data_size              = DATA_FRAME_SIZE,
2777         .desc_size              = TXD_DESC_SIZE,
2778         .priv_size              = sizeof(struct queue_entry_priv_pci),
2779 };
2780
2781 static const struct data_queue_desc rt61pci_queue_bcn = {
2782         .entry_num              = 4 * BEACON_ENTRIES,
2783         .data_size              = 0, /* No DMA required for beacons */
2784         .desc_size              = TXINFO_SIZE,
2785         .priv_size              = sizeof(struct queue_entry_priv_pci),
2786 };
2787
2788 static const struct rt2x00_ops rt61pci_ops = {
2789         .name                   = KBUILD_MODNAME,
2790         .max_sta_intf           = 1,
2791         .max_ap_intf            = 4,
2792         .eeprom_size            = EEPROM_SIZE,
2793         .rf_size                = RF_SIZE,
2794         .tx_queues              = NUM_TX_QUEUES,
2795         .extra_tx_headroom      = 0,
2796         .rx                     = &rt61pci_queue_rx,
2797         .tx                     = &rt61pci_queue_tx,
2798         .bcn                    = &rt61pci_queue_bcn,
2799         .lib                    = &rt61pci_rt2x00_ops,
2800         .hw                     = &rt61pci_mac80211_ops,
2801 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
2802         .debugfs                = &rt61pci_rt2x00debug,
2803 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
2804 };
2805
2806 /*
2807  * RT61pci module information.
2808  */
2809 static struct pci_device_id rt61pci_device_table[] = {
2810         /* RT2561s */
2811         { PCI_DEVICE(0x1814, 0x0301), PCI_DEVICE_DATA(&rt61pci_ops) },
2812         /* RT2561 v2 */
2813         { PCI_DEVICE(0x1814, 0x0302), PCI_DEVICE_DATA(&rt61pci_ops) },
2814         /* RT2661 */
2815         { PCI_DEVICE(0x1814, 0x0401), PCI_DEVICE_DATA(&rt61pci_ops) },
2816         { 0, }
2817 };
2818
2819 MODULE_AUTHOR(DRV_PROJECT);
2820 MODULE_VERSION(DRV_VERSION);
2821 MODULE_DESCRIPTION("Ralink RT61 PCI & PCMCIA Wireless LAN driver.");
2822 MODULE_SUPPORTED_DEVICE("Ralink RT2561, RT2561s & RT2661 "
2823                         "PCI & PCMCIA chipset based cards");
2824 MODULE_DEVICE_TABLE(pci, rt61pci_device_table);
2825 MODULE_FIRMWARE(FIRMWARE_RT2561);
2826 MODULE_FIRMWARE(FIRMWARE_RT2561s);
2827 MODULE_FIRMWARE(FIRMWARE_RT2661);
2828 MODULE_LICENSE("GPL");
2829
2830 static struct pci_driver rt61pci_driver = {
2831         .name           = KBUILD_MODNAME,
2832         .id_table       = rt61pci_device_table,
2833         .probe          = rt2x00pci_probe,
2834         .remove         = __devexit_p(rt2x00pci_remove),
2835         .suspend        = rt2x00pci_suspend,
2836         .resume         = rt2x00pci_resume,
2837 };
2838
2839 static int __init rt61pci_init(void)
2840 {
2841         return pci_register_driver(&rt61pci_driver);
2842 }
2843
2844 static void __exit rt61pci_exit(void)
2845 {
2846         pci_unregister_driver(&rt61pci_driver);
2847 }
2848
2849 module_init(rt61pci_init);
2850 module_exit(rt61pci_exit);