drivers/net/wireless/rt2x00/rt61pci.c

   1 /*
   2         Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
   3         <http://rt2x00.serialmonkey.com>
   4
   5         This program is free software; you can redistribute it and/or modify
   6         it under the terms of the GNU General Public License as published by
   7         the Free Software Foundation; either version 2 of the License, or
   8         (at your option) any later version.
   9
  10         This program is distributed in the hope that it will be useful,
  11         but WITHOUT ANY WARRANTY; without even the implied warranty of
  12         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13         GNU General Public License for more details.
  14
  15         You should have received a copy of the GNU General Public License
  16         along with this program; if not, write to the
  17         Free Software Foundation, Inc.,
  18         59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 /*
  22         Module: 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  * Register access.
  42  * BBP and RF register require indirect register access,
  43  * and use the CSR registers PHY_CSR3 and PHY_CSR4 to achieve this.
  44  * These indirect registers work with busy bits,
  45  * and we will try maximal REGISTER_BUSY_COUNT times to access
  46  * the register while taking a REGISTER_BUSY_DELAY us delay
  47  * between each attampt. When the busy bit is still set at that time,
  48  * the access attempt is considered to have failed,
  49  * and we will print an error.
  50  */
  51 static u32 rt61pci_bbp_check(struct rt2x00_dev *rt2x00dev)
  52 {
  53         u32 reg;
  54         unsigned int i;
  55
  56         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
  57                 rt2x00pci_register_read(rt2x00dev, PHY_CSR3, &reg);
  58                 if (!rt2x00_get_field32(reg, PHY_CSR3_BUSY))
  59                         break;
  60                 udelay(REGISTER_BUSY_DELAY);
  61         }
  62
  63         return reg;
  64 }
  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         /*
  72          * Wait until the BBP becomes ready.
  73          */
  74         reg = rt61pci_bbp_check(rt2x00dev);
  75         if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
  76                 ERROR(rt2x00dev, "PHY_CSR3 register busy. Write failed.\n");
  77                 return;
  78         }
  79
  80         /*
  81          * Write the data into the BBP.
  82          */
  83         reg = 0;
  84         rt2x00_set_field32(&reg, PHY_CSR3_VALUE, value);
  85         rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, word);
  86         rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
  87         rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 0);
  88
  89         rt2x00pci_register_write(rt2x00dev, PHY_CSR3, reg);
  90 }
  91
  92 static void rt61pci_bbp_read(struct rt2x00_dev *rt2x00dev,
  93                              const unsigned int word, u8 *value)
  94 {
  95         u32 reg;
  96
  97         /*
  98          * Wait until the BBP becomes ready.
  99          */
 100         reg = rt61pci_bbp_check(rt2x00dev);
 101         if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
 102                 ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
 103                 return;
 104         }
 105
 106         /*
 107          * Write the request into the BBP.
 108          */
 109         reg = 0;
 110         rt2x00_set_field32(&reg, PHY_CSR3_REGNUM, word);
 111         rt2x00_set_field32(&reg, PHY_CSR3_BUSY, 1);
 112         rt2x00_set_field32(&reg, PHY_CSR3_READ_CONTROL, 1);
 113
 114         rt2x00pci_register_write(rt2x00dev, PHY_CSR3, reg);
 115
 116         /*
 117          * Wait until the BBP becomes ready.
 118          */
 119         reg = rt61pci_bbp_check(rt2x00dev);
 120         if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) {
 121                 ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n");
 122                 *value = 0xff;
 123                 return;
 124         }
 125
 126         *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE);
 127 }
 128
 129 static void rt61pci_rf_write(struct rt2x00_dev *rt2x00dev,
 130                              const unsigned int word, const u32 value)
 131 {
 132         u32 reg;
 133         unsigned int i;
 134
 135         if (!word)
 136                 return;
 137
 138         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
 139                 rt2x00pci_register_read(rt2x00dev, PHY_CSR4, &reg);
 140                 if (!rt2x00_get_field32(reg, PHY_CSR4_BUSY))
 141                         goto rf_write;
 142                 udelay(REGISTER_BUSY_DELAY);
 143         }
 144
 145         ERROR(rt2x00dev, "PHY_CSR4 register busy. Write failed.\n");
 146         return;
 147
 148 rf_write:
 149         reg = 0;
 150         rt2x00_set_field32(&reg, PHY_CSR4_VALUE, value);
 151         rt2x00_set_field32(&reg, PHY_CSR4_NUMBER_OF_BITS, 21);
 152         rt2x00_set_field32(&reg, PHY_CSR4_IF_SELECT, 0);
 153         rt2x00_set_field32(&reg, PHY_CSR4_BUSY, 1);
 154
 155         rt2x00pci_register_write(rt2x00dev, PHY_CSR4, reg);
 156         rt2x00_rf_write(rt2x00dev, word, value);
 157 }
 158
 159 #ifdef CONFIG_RT61PCI_LEDS
 160 /*
 161  * This function is only called from rt61pci_led_brightness()
 162  * make gcc happy by placing this function inside the
 163  * same ifdef statement as the caller.
 164  */
 165 static void rt61pci_mcu_request(struct rt2x00_dev *rt2x00dev,
 166                                 const u8 command, const u8 token,
 167                                 const u8 arg0, const u8 arg1)
 168 {
 169         u32 reg;
 170
 171         rt2x00pci_register_read(rt2x00dev, H2M_MAILBOX_CSR, &reg);
 172
 173         if (rt2x00_get_field32(reg, H2M_MAILBOX_CSR_OWNER)) {
 174                 ERROR(rt2x00dev, "mcu request error. "
 175                       "Request 0x%02x failed for token 0x%02x.\n",
 176                       command, token);
 177                 return;
 178         }
 179
 180         rt2x00_set_field32(&reg, H2M_MAILBOX_CSR_OWNER, 1);
 181         rt2x00_set_field32(&reg, H2M_MAILBOX_CSR_CMD_TOKEN, token);
 182         rt2x00_set_field32(&reg, H2M_MAILBOX_CSR_ARG0, arg0);
 183         rt2x00_set_field32(&reg, H2M_MAILBOX_CSR_ARG1, arg1);
 184         rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CSR, reg);
 185
 186         rt2x00pci_register_read(rt2x00dev, HOST_CMD_CSR, &reg);
 187         rt2x00_set_field32(&reg, HOST_CMD_CSR_HOST_COMMAND, command);
 188         rt2x00_set_field32(&reg, HOST_CMD_CSR_INTERRUPT_MCU, 1);
 189         rt2x00pci_register_write(rt2x00dev, HOST_CMD_CSR, reg);
 190 }
 191 #endif /* CONFIG_RT61PCI_LEDS */
 192
 193 static void rt61pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
 194 {
 195         struct rt2x00_dev *rt2x00dev = eeprom->data;
 196         u32 reg;
 197
 198         rt2x00pci_register_read(rt2x00dev, E2PROM_CSR, &reg);
 199
 200         eeprom->reg_data_in = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_IN);
 201         eeprom->reg_data_out = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_OUT);
 202         eeprom->reg_data_clock =
 203             !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_CLOCK);
 204         eeprom->reg_chip_select =
 205             !!rt2x00_get_field32(reg, E2PROM_CSR_CHIP_SELECT);
 206 }
 207
 208 static void rt61pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
 209 {
 210         struct rt2x00_dev *rt2x00dev = eeprom->data;
 211         u32 reg = 0;
 212
 213         rt2x00_set_field32(&reg, E2PROM_CSR_DATA_IN, !!eeprom->reg_data_in);
 214         rt2x00_set_field32(&reg, E2PROM_CSR_DATA_OUT, !!eeprom->reg_data_out);
 215         rt2x00_set_field32(&reg, E2PROM_CSR_DATA_CLOCK,
 216                            !!eeprom->reg_data_clock);
 217         rt2x00_set_field32(&reg, E2PROM_CSR_CHIP_SELECT,
 218                            !!eeprom->reg_chip_select);
 219
 220         rt2x00pci_register_write(rt2x00dev, E2PROM_CSR, reg);
 221 }
 222
 223 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
 224 #define CSR_OFFSET(__word)      ( CSR_REG_BASE + ((__word) * sizeof(u32)) )
 225
 226 static void rt61pci_read_csr(struct rt2x00_dev *rt2x00dev,
 227                              const unsigned int word, u32 *data)
 228 {
 229         rt2x00pci_register_read(rt2x00dev, CSR_OFFSET(word), data);
 230 }
 231
 232 static void rt61pci_write_csr(struct rt2x00_dev *rt2x00dev,
 233                               const unsigned int word, u32 data)
 234 {
 235         rt2x00pci_register_write(rt2x00dev, CSR_OFFSET(word), data);
 236 }
 237
 238 static const struct rt2x00debug rt61pci_rt2x00debug = {
 239         .owner  = THIS_MODULE,
 240         .csr    = {
 241                 .read           = rt61pci_read_csr,
 242                 .write          = rt61pci_write_csr,
 243                 .word_size      = sizeof(u32),
 244                 .word_count     = CSR_REG_SIZE / sizeof(u32),
 245         },
 246         .eeprom = {
 247                 .read           = rt2x00_eeprom_read,
 248                 .write          = rt2x00_eeprom_write,
 249                 .word_size      = sizeof(u16),
 250                 .word_count     = EEPROM_SIZE / sizeof(u16),
 251         },
 252         .bbp    = {
 253                 .read           = rt61pci_bbp_read,
 254                 .write          = rt61pci_bbp_write,
 255                 .word_size      = sizeof(u8),
 256                 .word_count     = BBP_SIZE / sizeof(u8),
 257         },
 258         .rf     = {
 259                 .read           = rt2x00_rf_read,
 260                 .write          = rt61pci_rf_write,
 261                 .word_size      = sizeof(u32),
 262                 .word_count     = RF_SIZE / sizeof(u32),
 263         },
 264 };
 265 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 266
 267 #ifdef CONFIG_RT61PCI_RFKILL
 268 static int rt61pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 269 {
 270         u32 reg;
 271
 272         rt2x00pci_register_read(rt2x00dev, MAC_CSR13, &reg);
 273         return rt2x00_get_field32(reg, MAC_CSR13_BIT5);
 274 }
 275 #else
 276 #define rt61pci_rfkill_poll     NULL
 277 #endif /* CONFIG_RT61PCI_RFKILL */
 278
 279 #ifdef CONFIG_RT61PCI_LEDS
 280 static void rt61pci_brightness_set(struct led_classdev *led_cdev,
 281                                    enum led_brightness brightness)
 282 {
 283         struct rt2x00_led *led =
 284             container_of(led_cdev, struct rt2x00_led, led_dev);
 285         unsigned int enabled = brightness != LED_OFF;
 286         unsigned int a_mode =
 287             (enabled && led->rt2x00dev->curr_band == IEEE80211_BAND_5GHZ);
 288         unsigned int bg_mode =
 289             (enabled && led->rt2x00dev->curr_band == IEEE80211_BAND_2GHZ);
 290
 291         if (led->type == LED_TYPE_RADIO) {
 292                 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
 293                                    MCU_LEDCS_RADIO_STATUS, enabled);
 294
 295                 rt61pci_mcu_request(led->rt2x00dev, MCU_LED, 0xff,
 296                                     (led->rt2x00dev->led_mcu_reg & 0xff),
 297                                     ((led->rt2x00dev->led_mcu_reg >> 8)));
 298         } else if (led->type == LED_TYPE_ASSOC) {
 299                 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
 300                                    MCU_LEDCS_LINK_BG_STATUS, bg_mode);
 301                 rt2x00_set_field16(&led->rt2x00dev->led_mcu_reg,
 302                                    MCU_LEDCS_LINK_A_STATUS, a_mode);
 303
 304                 rt61pci_mcu_request(led->rt2x00dev, MCU_LED, 0xff,
 305                                     (led->rt2x00dev->led_mcu_reg & 0xff),
 306                                     ((led->rt2x00dev->led_mcu_reg >> 8)));
 307         } else if (led->type == LED_TYPE_QUALITY) {
 308                 /*
 309                  * The brightness is divided into 6 levels (0 - 5),
 310                  * this means we need to convert the brightness
 311                  * argument into the matching level within that range.
 312                  */
 313                 rt61pci_mcu_request(led->rt2x00dev, MCU_LED_STRENGTH, 0xff,
 314                                     brightness / (LED_FULL / 6), 0);
 315         }
 316 }
 317
 318 static int rt61pci_blink_set(struct led_classdev *led_cdev,
 319                              unsigned long *delay_on,
 320                              unsigned long *delay_off)
 321 {
 322         struct rt2x00_led *led =
 323             container_of(led_cdev, struct rt2x00_led, led_dev);
 324         u32 reg;
 325
 326         rt2x00pci_register_read(led->rt2x00dev, MAC_CSR14, &reg);
 327         rt2x00_set_field32(&reg, MAC_CSR14_ON_PERIOD, *delay_on);
 328         rt2x00_set_field32(&reg, MAC_CSR14_OFF_PERIOD, *delay_off);
 329         rt2x00pci_register_write(led->rt2x00dev, MAC_CSR14, reg);
 330
 331         return 0;
 332 }
 333 #endif /* CONFIG_RT61PCI_LEDS */
 334
 335 /*
 336  * Configuration handlers.
 337  */
 338 static void rt61pci_config_filter(struct rt2x00_dev *rt2x00dev,
 339                                   const unsigned int filter_flags)
 340 {
 341         u32 reg;
 342
 343         /*
 344          * Start configuration steps.
 345          * Note that the version error will always be dropped
 346          * and broadcast frames will always be accepted since
 347          * there is no filter for it at this time.
 348          */
 349         rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
 350         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CRC,
 351                            !(filter_flags & FIF_FCSFAIL));
 352         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_PHYSICAL,
 353                            !(filter_flags & FIF_PLCPFAIL));
 354         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL,
 355                            !(filter_flags & FIF_CONTROL));
 356         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME,
 357                            !(filter_flags & FIF_PROMISC_IN_BSS));
 358         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS,
 359                            !(filter_flags & FIF_PROMISC_IN_BSS) &&
 360                            !rt2x00dev->intf_ap_count);
 361         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
 362         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_MULTICAST,
 363                            !(filter_flags & FIF_ALLMULTI));
 364         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_BROADCAST, 0);
 365         rt2x00_set_field32(&reg, TXRX_CSR0_DROP_ACK_CTS,
 366                            !(filter_flags & FIF_CONTROL));
 367         rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
 368 }
 369
 370 static void rt61pci_config_intf(struct rt2x00_dev *rt2x00dev,
 371                                 struct rt2x00_intf *intf,
 372                                 struct rt2x00intf_conf *conf,
 373                                 const unsigned int flags)
 374 {
 375         unsigned int beacon_base;
 376         u32 reg;
 377
 378         if (flags & CONFIG_UPDATE_TYPE) {
 379                 /*
 380                  * Clear current synchronisation setup.
 381                  * For the Beacon base registers we only need to clear
 382                  * the first byte since that byte contains the VALID and OWNER
 383                  * bits which (when set to 0) will invalidate the entire beacon.
 384                  */
 385                 beacon_base = HW_BEACON_OFFSET(intf->beacon->entry_idx);
 386                 rt2x00pci_register_write(rt2x00dev, beacon_base, 0);
 387
 388                 /*
 389                  * Enable synchronisation.
 390                  */
 391                 rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
 392                 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
 393                 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, conf->sync);
 394                 rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
 395                 rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
 396         }
 397
 398         if (flags & CONFIG_UPDATE_MAC) {
 399                 reg = le32_to_cpu(conf->mac[1]);
 400                 rt2x00_set_field32(&reg, MAC_CSR3_UNICAST_TO_ME_MASK, 0xff);
 401                 conf->mac[1] = cpu_to_le32(reg);
 402
 403                 rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR2,
 404                                               conf->mac, sizeof(conf->mac));
 405         }
 406
 407         if (flags & CONFIG_UPDATE_BSSID) {
 408                 reg = le32_to_cpu(conf->bssid[1]);
 409                 rt2x00_set_field32(&reg, MAC_CSR5_BSS_ID_MASK, 3);
 410                 conf->bssid[1] = cpu_to_le32(reg);
 411
 412                 rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR4,
 413                                               conf->bssid, sizeof(conf->bssid));
 414         }
 415 }
 416
 417 static void rt61pci_config_erp(struct rt2x00_dev *rt2x00dev,
 418                                struct rt2x00lib_erp *erp)
 419 {
 420         u32 reg;
 421
 422         rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
 423         rt2x00_set_field32(&reg, TXRX_CSR0_RX_ACK_TIMEOUT, erp->ack_timeout);
 424         rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
 425
 426         rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, &reg);
 427         rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_PREAMBLE,
 428                            !!erp->short_preamble);
 429         rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg);
 430 }
 431
 432 static void rt61pci_config_phymode(struct rt2x00_dev *rt2x00dev,
 433                                    const int basic_rate_mask)
 434 {
 435         rt2x00pci_register_write(rt2x00dev, TXRX_CSR5, basic_rate_mask);
 436 }
 437
 438 static void rt61pci_config_channel(struct rt2x00_dev *rt2x00dev,
 439                                    struct rf_channel *rf, const int txpower)
 440 {
 441         u8 r3;
 442         u8 r94;
 443         u8 smart;
 444
 445         rt2x00_set_field32(&rf->rf3, RF3_TXPOWER, TXPOWER_TO_DEV(txpower));
 446         rt2x00_set_field32(&rf->rf4, RF4_FREQ_OFFSET, rt2x00dev->freq_offset);
 447
 448         smart = !(rt2x00_rf(&rt2x00dev->chip, RF5225) ||
 449                   rt2x00_rf(&rt2x00dev->chip, RF2527));
 450
 451         rt61pci_bbp_read(rt2x00dev, 3, &r3);
 452         rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, smart);
 453         rt61pci_bbp_write(rt2x00dev, 3, r3);
 454
 455         r94 = 6;
 456         if (txpower > MAX_TXPOWER && txpower <= (MAX_TXPOWER + r94))
 457                 r94 += txpower - MAX_TXPOWER;
 458         else if (txpower < MIN_TXPOWER && txpower >= (MIN_TXPOWER - r94))
 459                 r94 += txpower;
 460         rt61pci_bbp_write(rt2x00dev, 94, r94);
 461
 462         rt61pci_rf_write(rt2x00dev, 1, rf->rf1);
 463         rt61pci_rf_write(rt2x00dev, 2, rf->rf2);
 464         rt61pci_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
 465         rt61pci_rf_write(rt2x00dev, 4, rf->rf4);
 466
 467         udelay(200);
 468
 469         rt61pci_rf_write(rt2x00dev, 1, rf->rf1);
 470         rt61pci_rf_write(rt2x00dev, 2, rf->rf2);
 471         rt61pci_rf_write(rt2x00dev, 3, rf->rf3 | 0x00000004);
 472         rt61pci_rf_write(rt2x00dev, 4, rf->rf4);
 473
 474         udelay(200);
 475
 476         rt61pci_rf_write(rt2x00dev, 1, rf->rf1);
 477         rt61pci_rf_write(rt2x00dev, 2, rf->rf2);
 478         rt61pci_rf_write(rt2x00dev, 3, rf->rf3 & ~0x00000004);
 479         rt61pci_rf_write(rt2x00dev, 4, rf->rf4);
 480
 481         msleep(1);
 482 }
 483
 484 static void rt61pci_config_txpower(struct rt2x00_dev *rt2x00dev,
 485                                    const int txpower)
 486 {
 487         struct rf_channel rf;
 488
 489         rt2x00_rf_read(rt2x00dev, 1, &rf.rf1);
 490         rt2x00_rf_read(rt2x00dev, 2, &rf.rf2);
 491         rt2x00_rf_read(rt2x00dev, 3, &rf.rf3);
 492         rt2x00_rf_read(rt2x00dev, 4, &rf.rf4);
 493
 494         rt61pci_config_channel(rt2x00dev, &rf, txpower);
 495 }
 496
 497 static void rt61pci_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
 498                                       struct antenna_setup *ant)
 499 {
 500         u8 r3;
 501         u8 r4;
 502         u8 r77;
 503
 504         rt61pci_bbp_read(rt2x00dev, 3, &r3);
 505         rt61pci_bbp_read(rt2x00dev, 4, &r4);
 506         rt61pci_bbp_read(rt2x00dev, 77, &r77);
 507
 508         rt2x00_set_field8(&r3, BBP_R3_SMART_MODE,
 509                           rt2x00_rf(&rt2x00dev->chip, RF5325));
 510
 511         /*
 512          * Configure the RX antenna.
 513          */
 514         switch (ant->rx) {
 515         case ANTENNA_HW_DIVERSITY:
 516                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 2);
 517                 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
 518                                   (rt2x00dev->curr_band != IEEE80211_BAND_5GHZ));
 519                 break;
 520         case ANTENNA_A:
 521                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
 522                 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
 523                 if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ)
 524                         rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
 525                 else
 526                         rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
 527                 break;
 528         case ANTENNA_B:
 529         default:
 530                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
 531                 rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
 532                 if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ)
 533                         rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
 534                 else
 535                         rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
 536                 break;
 537         }
 538
 539         rt61pci_bbp_write(rt2x00dev, 77, r77);
 540         rt61pci_bbp_write(rt2x00dev, 3, r3);
 541         rt61pci_bbp_write(rt2x00dev, 4, r4);
 542 }
 543
 544 static void rt61pci_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
 545                                       struct antenna_setup *ant)
 546 {
 547         u8 r3;
 548         u8 r4;
 549         u8 r77;
 550
 551         rt61pci_bbp_read(rt2x00dev, 3, &r3);
 552         rt61pci_bbp_read(rt2x00dev, 4, &r4);
 553         rt61pci_bbp_read(rt2x00dev, 77, &r77);
 554
 555         rt2x00_set_field8(&r3, BBP_R3_SMART_MODE,
 556                           rt2x00_rf(&rt2x00dev->chip, RF2529));
 557         rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
 558                           !test_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags));
 559
 560         /*
 561          * Configure the RX antenna.
 562          */
 563         switch (ant->rx) {
 564         case ANTENNA_HW_DIVERSITY:
 565                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 2);
 566                 break;
 567         case ANTENNA_A:
 568                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
 569                 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
 570                 break;
 571         case ANTENNA_B:
 572         default:
 573                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
 574                 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
 575                 break;
 576         }
 577
 578         rt61pci_bbp_write(rt2x00dev, 77, r77);
 579         rt61pci_bbp_write(rt2x00dev, 3, r3);
 580         rt61pci_bbp_write(rt2x00dev, 4, r4);
 581 }
 582
 583 static void rt61pci_config_antenna_2529_rx(struct rt2x00_dev *rt2x00dev,
 584                                            const int p1, const int p2)
 585 {
 586         u32 reg;
 587
 588         rt2x00pci_register_read(rt2x00dev, MAC_CSR13, &reg);
 589
 590         rt2x00_set_field32(&reg, MAC_CSR13_BIT4, p1);
 591         rt2x00_set_field32(&reg, MAC_CSR13_BIT12, 0);
 592
 593         rt2x00_set_field32(&reg, MAC_CSR13_BIT3, !p2);
 594         rt2x00_set_field32(&reg, MAC_CSR13_BIT11, 0);
 595
 596         rt2x00pci_register_write(rt2x00dev, MAC_CSR13, reg);
 597 }
 598
 599 static void rt61pci_config_antenna_2529(struct rt2x00_dev *rt2x00dev,
 600                                         struct antenna_setup *ant)
 601 {
 602         u8 r3;
 603         u8 r4;
 604         u8 r77;
 605
 606         rt61pci_bbp_read(rt2x00dev, 3, &r3);
 607         rt61pci_bbp_read(rt2x00dev, 4, &r4);
 608         rt61pci_bbp_read(rt2x00dev, 77, &r77);
 609
 610         /*
 611          * Configure the RX antenna.
 612          */
 613         switch (ant->rx) {
 614         case ANTENNA_A:
 615                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
 616                 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
 617                 rt61pci_config_antenna_2529_rx(rt2x00dev, 0, 0);
 618                 break;
 619         case ANTENNA_HW_DIVERSITY:
 620                 /*
 621                  * FIXME: Antenna selection for the rf 2529 is very confusing
 622                  * in the legacy driver. Just default to antenna B until the
 623                  * legacy code can be properly translated into rt2x00 code.
 624                  */
 625         case ANTENNA_B:
 626         default:
 627                 rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
 628                 rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
 629                 rt61pci_config_antenna_2529_rx(rt2x00dev, 1, 1);
 630                 break;
 631         }
 632
 633         rt61pci_bbp_write(rt2x00dev, 77, r77);
 634         rt61pci_bbp_write(rt2x00dev, 3, r3);
 635         rt61pci_bbp_write(rt2x00dev, 4, r4);
 636 }
 637
 638 struct antenna_sel {
 639         u8 word;
 640         /*
 641          * value[0] -> non-LNA
 642          * value[1] -> LNA
 643          */
 644         u8 value[2];
 645 };
 646
 647 static const struct antenna_sel antenna_sel_a[] = {
 648         { 96,  { 0x58, 0x78 } },
 649         { 104, { 0x38, 0x48 } },
 650         { 75,  { 0xfe, 0x80 } },
 651         { 86,  { 0xfe, 0x80 } },
 652         { 88,  { 0xfe, 0x80 } },
 653         { 35,  { 0x60, 0x60 } },
 654         { 97,  { 0x58, 0x58 } },
 655         { 98,  { 0x58, 0x58 } },
 656 };
 657
 658 static const struct antenna_sel antenna_sel_bg[] = {
 659         { 96,  { 0x48, 0x68 } },
 660         { 104, { 0x2c, 0x3c } },
 661         { 75,  { 0xfe, 0x80 } },
 662         { 86,  { 0xfe, 0x80 } },
 663         { 88,  { 0xfe, 0x80 } },
 664         { 35,  { 0x50, 0x50 } },
 665         { 97,  { 0x48, 0x48 } },
 666         { 98,  { 0x48, 0x48 } },
 667 };
 668
 669 static void rt61pci_config_antenna(struct rt2x00_dev *rt2x00dev,
 670                                    struct antenna_setup *ant)
 671 {
 672         const struct antenna_sel *sel;
 673         unsigned int lna;
 674         unsigned int i;
 675         u32 reg;
 676
 677         /*
 678          * We should never come here because rt2x00lib is supposed
 679          * to catch this and send us the correct antenna explicitely.
 680          */
 681         BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
 682                ant->tx == ANTENNA_SW_DIVERSITY);
 683
 684         if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
 685                 sel = antenna_sel_a;
 686                 lna = test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
 687         } else {
 688                 sel = antenna_sel_bg;
 689                 lna = test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
 690         }
 691
 692         for (i = 0; i < ARRAY_SIZE(antenna_sel_a); i++)
 693                 rt61pci_bbp_write(rt2x00dev, sel[i].word, sel[i].value[lna]);
 694
 695         rt2x00pci_register_read(rt2x00dev, PHY_CSR0, &reg);
 696
 697         rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_BG,
 698                            rt2x00dev->curr_band == IEEE80211_BAND_2GHZ);
 699         rt2x00_set_field32(&reg, PHY_CSR0_PA_PE_A,
 700                            rt2x00dev->curr_band == IEEE80211_BAND_5GHZ);
 701
 702         rt2x00pci_register_write(rt2x00dev, PHY_CSR0, reg);
 703
 704         if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
 705             rt2x00_rf(&rt2x00dev->chip, RF5325))
 706                 rt61pci_config_antenna_5x(rt2x00dev, ant);
 707         else if (rt2x00_rf(&rt2x00dev->chip, RF2527))
 708                 rt61pci_config_antenna_2x(rt2x00dev, ant);
 709         else if (rt2x00_rf(&rt2x00dev->chip, RF2529)) {
 710                 if (test_bit(CONFIG_DOUBLE_ANTENNA, &rt2x00dev->flags))
 711                         rt61pci_config_antenna_2x(rt2x00dev, ant);
 712                 else
 713                         rt61pci_config_antenna_2529(rt2x00dev, ant);
 714         }
 715 }
 716
 717 static void rt61pci_config_duration(struct rt2x00_dev *rt2x00dev,
 718                                     struct rt2x00lib_conf *libconf)
 719 {
 720         u32 reg;
 721
 722         rt2x00pci_register_read(rt2x00dev, MAC_CSR9, &reg);
 723         rt2x00_set_field32(&reg, MAC_CSR9_SLOT_TIME, libconf->slot_time);
 724         rt2x00pci_register_write(rt2x00dev, MAC_CSR9, reg);
 725
 726         rt2x00pci_register_read(rt2x00dev, MAC_CSR8, &reg);
 727         rt2x00_set_field32(&reg, MAC_CSR8_SIFS, libconf->sifs);
 728         rt2x00_set_field32(&reg, MAC_CSR8_SIFS_AFTER_RX_OFDM, 3);
 729         rt2x00_set_field32(&reg, MAC_CSR8_EIFS, libconf->eifs);
 730         rt2x00pci_register_write(rt2x00dev, MAC_CSR8, reg);
 731
 732         rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
 733         rt2x00_set_field32(&reg, TXRX_CSR0_TSF_OFFSET, IEEE80211_HEADER);
 734         rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
 735
 736         rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, &reg);
 737         rt2x00_set_field32(&reg, TXRX_CSR4_AUTORESPOND_ENABLE, 1);
 738         rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg);
 739
 740         rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
 741         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_INTERVAL,
 742                            libconf->conf->beacon_int * 16);
 743         rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
 744 }
 745
 746 static void rt61pci_config(struct rt2x00_dev *rt2x00dev,
 747                            struct rt2x00lib_conf *libconf,
 748                            const unsigned int flags)
 749 {
 750         if (flags & CONFIG_UPDATE_PHYMODE)
 751                 rt61pci_config_phymode(rt2x00dev, libconf->basic_rates);
 752         if (flags & CONFIG_UPDATE_CHANNEL)
 753                 rt61pci_config_channel(rt2x00dev, &libconf->rf,
 754                                        libconf->conf->power_level);
 755         if ((flags & CONFIG_UPDATE_TXPOWER) && !(flags & CONFIG_UPDATE_CHANNEL))
 756                 rt61pci_config_txpower(rt2x00dev, libconf->conf->power_level);
 757         if (flags & CONFIG_UPDATE_ANTENNA)
 758                 rt61pci_config_antenna(rt2x00dev, &libconf->ant);
 759         if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
 760                 rt61pci_config_duration(rt2x00dev, libconf);
 761 }
 762
 763 /*
 764  * Link tuning
 765  */
 766 static void rt61pci_link_stats(struct rt2x00_dev *rt2x00dev,
 767                                struct link_qual *qual)
 768 {
 769         u32 reg;
 770
 771         /*
 772          * Update FCS error count from register.
 773          */
 774         rt2x00pci_register_read(rt2x00dev, STA_CSR0, &reg);
 775         qual->rx_failed = rt2x00_get_field32(reg, STA_CSR0_FCS_ERROR);
 776
 777         /*
 778          * Update False CCA count from register.
 779          */
 780         rt2x00pci_register_read(rt2x00dev, STA_CSR1, &reg);
 781         qual->false_cca = rt2x00_get_field32(reg, STA_CSR1_FALSE_CCA_ERROR);
 782 }
 783
 784 static void rt61pci_reset_tuner(struct rt2x00_dev *rt2x00dev)
 785 {
 786         rt61pci_bbp_write(rt2x00dev, 17, 0x20);
 787         rt2x00dev->link.vgc_level = 0x20;
 788 }
 789
 790 static void rt61pci_link_tuner(struct rt2x00_dev *rt2x00dev)
 791 {
 792         int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
 793         u8 r17;
 794         u8 up_bound;
 795         u8 low_bound;
 796
 797         rt61pci_bbp_read(rt2x00dev, 17, &r17);
 798
 799         /*
 800          * Determine r17 bounds.
 801          */
 802         if (rt2x00dev->rx_status.band == IEEE80211_BAND_5GHZ) {
 803                 low_bound = 0x28;
 804                 up_bound = 0x48;
 805                 if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags)) {
 806                         low_bound += 0x10;
 807                         up_bound += 0x10;
 808                 }
 809         } else {
 810                 low_bound = 0x20;
 811                 up_bound = 0x40;
 812                 if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags)) {
 813                         low_bound += 0x10;
 814                         up_bound += 0x10;
 815                 }
 816         }
 817
 818         /*
 819          * If we are not associated, we should go straight to the
 820          * dynamic CCA tuning.
 821          */
 822         if (!rt2x00dev->intf_associated)
 823                 goto dynamic_cca_tune;
 824
 825         /*
 826          * Special big-R17 for very short distance
 827          */
 828         if (rssi >= -35) {
 829                 if (r17 != 0x60)
 830                         rt61pci_bbp_write(rt2x00dev, 17, 0x60);
 831                 return;
 832         }
 833
 834         /*
 835          * Special big-R17 for short distance
 836          */
 837         if (rssi >= -58) {
 838                 if (r17 != up_bound)
 839                         rt61pci_bbp_write(rt2x00dev, 17, up_bound);
 840                 return;
 841         }
 842
 843         /*
 844          * Special big-R17 for middle-short distance
 845          */
 846         if (rssi >= -66) {
 847                 low_bound += 0x10;
 848                 if (r17 != low_bound)
 849                         rt61pci_bbp_write(rt2x00dev, 17, low_bound);
 850                 return;
 851         }
 852
 853         /*
 854          * Special mid-R17 for middle distance
 855          */
 856         if (rssi >= -74) {
 857                 low_bound += 0x08;
 858                 if (r17 != low_bound)
 859                         rt61pci_bbp_write(rt2x00dev, 17, low_bound);
 860                 return;
 861         }
 862
 863         /*
 864          * Special case: Change up_bound based on the rssi.
 865          * Lower up_bound when rssi is weaker then -74 dBm.
 866          */
 867         up_bound -= 2 * (-74 - rssi);
 868         if (low_bound > up_bound)
 869                 up_bound = low_bound;
 870
 871         if (r17 > up_bound) {
 872                 rt61pci_bbp_write(rt2x00dev, 17, up_bound);
 873                 return;
 874         }
 875
 876 dynamic_cca_tune:
 877
 878         /*
 879          * r17 does not yet exceed upper limit, continue and base
 880          * the r17 tuning on the false CCA count.
 881          */
 882         if (rt2x00dev->link.qual.false_cca > 512 && r17 < up_bound) {
 883                 if (++r17 > up_bound)
 884                         r17 = up_bound;
 885                 rt61pci_bbp_write(rt2x00dev, 17, r17);
 886         } else if (rt2x00dev->link.qual.false_cca < 100 && r17 > low_bound) {
 887                 if (--r17 < low_bound)
 888                         r17 = low_bound;
 889                 rt61pci_bbp_write(rt2x00dev, 17, r17);
 890         }
 891 }
 892
 893 /*
 894  * Firmware functions
 895  */
 896 static char *rt61pci_get_firmware_name(struct rt2x00_dev *rt2x00dev)
 897 {
 898         char *fw_name;
 899
 900         switch (rt2x00dev->chip.rt) {
 901         case RT2561:
 902                 fw_name = FIRMWARE_RT2561;
 903                 break;
 904         case RT2561s:
 905                 fw_name = FIRMWARE_RT2561s;
 906                 break;
 907         case RT2661:
 908                 fw_name = FIRMWARE_RT2661;
 909                 break;
 910         default:
 911                 fw_name = NULL;
 912                 break;
 913         }
 914
 915         return fw_name;
 916 }
 917
 918 static u16 rt61pci_get_firmware_crc(const void *data, const size_t len)
 919 {
 920         u16 crc;
 921
 922         /*
 923          * Use the crc itu-t algorithm.
 924          * The last 2 bytes in the firmware array are the crc checksum itself,
 925          * this means that we should never pass those 2 bytes to the crc
 926          * algorithm.
 927          */
 928         crc = crc_itu_t(0, data, len - 2);
 929         crc = crc_itu_t_byte(crc, 0);
 930         crc = crc_itu_t_byte(crc, 0);
 931
 932         return crc;
 933 }
 934
 935 static int rt61pci_load_firmware(struct rt2x00_dev *rt2x00dev, const void *data,
 936                                  const size_t len)
 937 {
 938         int i;
 939         u32 reg;
 940
 941         /*
 942          * Wait for stable hardware.
 943          */
 944         for (i = 0; i < 100; i++) {
 945                 rt2x00pci_register_read(rt2x00dev, MAC_CSR0, &reg);
 946                 if (reg)
 947                         break;
 948                 msleep(1);
 949         }
 950
 951         if (!reg) {
 952                 ERROR(rt2x00dev, "Unstable hardware.\n");
 953                 return -EBUSY;
 954         }
 955
 956         /*
 957          * Prepare MCU and mailbox for firmware loading.
 958          */
 959         reg = 0;
 960         rt2x00_set_field32(&reg, MCU_CNTL_CSR_RESET, 1);
 961         rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
 962         rt2x00pci_register_write(rt2x00dev, M2H_CMD_DONE_CSR, 0xffffffff);
 963         rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
 964         rt2x00pci_register_write(rt2x00dev, HOST_CMD_CSR, 0);
 965
 966         /*
 967          * Write firmware to device.
 968          */
 969         reg = 0;
 970         rt2x00_set_field32(&reg, MCU_CNTL_CSR_RESET, 1);
 971         rt2x00_set_field32(&reg, MCU_CNTL_CSR_SELECT_BANK, 1);
 972         rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
 973
 974         rt2x00pci_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
 975                                       data, len);
 976
 977         rt2x00_set_field32(&reg, MCU_CNTL_CSR_SELECT_BANK, 0);
 978         rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
 979
 980         rt2x00_set_field32(&reg, MCU_CNTL_CSR_RESET, 0);
 981         rt2x00pci_register_write(rt2x00dev, MCU_CNTL_CSR, reg);
 982
 983         for (i = 0; i < 100; i++) {
 984                 rt2x00pci_register_read(rt2x00dev, MCU_CNTL_CSR, &reg);
 985                 if (rt2x00_get_field32(reg, MCU_CNTL_CSR_READY))
 986                         break;
 987                 msleep(1);
 988         }
 989
 990         if (i == 100) {
 991                 ERROR(rt2x00dev, "MCU Control register not ready.\n");
 992                 return -EBUSY;
 993         }
 994
 995         /*
 996          * Reset MAC and BBP registers.
 997          */
 998         reg = 0;
 999         rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 1);
1000         rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 1);
1001         rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1002
1003         rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
1004         rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 0);
1005         rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 0);
1006         rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1007
1008         rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
1009         rt2x00_set_field32(&reg, MAC_CSR1_HOST_READY, 1);
1010         rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1011
1012         return 0;
1013 }
1014
1015 /*
1016  * Initialization functions.
1017  */
1018 static void rt61pci_init_rxentry(struct rt2x00_dev *rt2x00dev,
1019                                  struct queue_entry *entry)
1020 {
1021         struct queue_entry_priv_pci_rx *priv_rx = entry->priv_data;
1022         u32 word;
1023
1024         rt2x00_desc_read(priv_rx->desc, 5, &word);
1025         rt2x00_set_field32(&word, RXD_W5_BUFFER_PHYSICAL_ADDRESS,
1026                            priv_rx->data_dma);
1027         rt2x00_desc_write(priv_rx->desc, 5, word);
1028
1029         rt2x00_desc_read(priv_rx->desc, 0, &word);
1030         rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
1031         rt2x00_desc_write(priv_rx->desc, 0, word);
1032 }
1033
1034 static void rt61pci_init_txentry(struct rt2x00_dev *rt2x00dev,
1035                                  struct queue_entry *entry)
1036 {
1037         struct queue_entry_priv_pci_tx *priv_tx = entry->priv_data;
1038         u32 word;
1039
1040         rt2x00_desc_read(priv_tx->desc, 1, &word);
1041         rt2x00_set_field32(&word, TXD_W1_BUFFER_COUNT, 1);
1042         rt2x00_desc_write(priv_tx->desc, 1, word);
1043
1044         rt2x00_desc_read(priv_tx->desc, 5, &word);
1045         rt2x00_set_field32(&word, TXD_W5_PID_TYPE, entry->queue->qid);
1046         rt2x00_set_field32(&word, TXD_W5_PID_SUBTYPE, entry->entry_idx);
1047         rt2x00_desc_write(priv_tx->desc, 5, word);
1048
1049         rt2x00_desc_read(priv_tx->desc, 6, &word);
1050         rt2x00_set_field32(&word, TXD_W6_BUFFER_PHYSICAL_ADDRESS,
1051                            priv_tx->data_dma);
1052         rt2x00_desc_write(priv_tx->desc, 6, word);
1053
1054         rt2x00_desc_read(priv_tx->desc, 0, &word);
1055         rt2x00_set_field32(&word, TXD_W0_VALID, 0);
1056         rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
1057         rt2x00_desc_write(priv_tx->desc, 0, word);
1058 }
1059
1060 static int rt61pci_init_queues(struct rt2x00_dev *rt2x00dev)
1061 {
1062         struct queue_entry_priv_pci_rx *priv_rx;
1063         struct queue_entry_priv_pci_tx *priv_tx;
1064         u32 reg;
1065
1066         /*
1067          * Initialize registers.
1068          */
1069         rt2x00pci_register_read(rt2x00dev, TX_RING_CSR0, &reg);
1070         rt2x00_set_field32(&reg, TX_RING_CSR0_AC0_RING_SIZE,
1071                            rt2x00dev->tx[0].limit);
1072         rt2x00_set_field32(&reg, TX_RING_CSR0_AC1_RING_SIZE,
1073                            rt2x00dev->tx[1].limit);
1074         rt2x00_set_field32(&reg, TX_RING_CSR0_AC2_RING_SIZE,
1075                            rt2x00dev->tx[2].limit);
1076         rt2x00_set_field32(&reg, TX_RING_CSR0_AC3_RING_SIZE,
1077                            rt2x00dev->tx[3].limit);
1078         rt2x00pci_register_write(rt2x00dev, TX_RING_CSR0, reg);
1079
1080         rt2x00pci_register_read(rt2x00dev, TX_RING_CSR1, &reg);
1081         rt2x00_set_field32(&reg, TX_RING_CSR1_TXD_SIZE,
1082                            rt2x00dev->tx[0].desc_size / 4);
1083         rt2x00pci_register_write(rt2x00dev, TX_RING_CSR1, reg);
1084
1085         priv_tx = rt2x00dev->tx[0].entries[0].priv_data;
1086         rt2x00pci_register_read(rt2x00dev, AC0_BASE_CSR, &reg);
1087         rt2x00_set_field32(&reg, AC0_BASE_CSR_RING_REGISTER,
1088                            priv_tx->desc_dma);
1089         rt2x00pci_register_write(rt2x00dev, AC0_BASE_CSR, reg);
1090
1091         priv_tx = rt2x00dev->tx[1].entries[0].priv_data;
1092         rt2x00pci_register_read(rt2x00dev, AC1_BASE_CSR, &reg);
1093         rt2x00_set_field32(&reg, AC1_BASE_CSR_RING_REGISTER,
1094                            priv_tx->desc_dma);
1095         rt2x00pci_register_write(rt2x00dev, AC1_BASE_CSR, reg);
1096
1097         priv_tx = rt2x00dev->tx[2].entries[0].priv_data;
1098         rt2x00pci_register_read(rt2x00dev, AC2_BASE_CSR, &reg);
1099         rt2x00_set_field32(&reg, AC2_BASE_CSR_RING_REGISTER,
1100                            priv_tx->desc_dma);
1101         rt2x00pci_register_write(rt2x00dev, AC2_BASE_CSR, reg);
1102
1103         priv_tx = rt2x00dev->tx[3].entries[0].priv_data;
1104         rt2x00pci_register_read(rt2x00dev, AC3_BASE_CSR, &reg);
1105         rt2x00_set_field32(&reg, AC3_BASE_CSR_RING_REGISTER,
1106                            priv_tx->desc_dma);
1107         rt2x00pci_register_write(rt2x00dev, AC3_BASE_CSR, reg);
1108
1109         rt2x00pci_register_read(rt2x00dev, RX_RING_CSR, &reg);
1110         rt2x00_set_field32(&reg, RX_RING_CSR_RING_SIZE, rt2x00dev->rx->limit);
1111         rt2x00_set_field32(&reg, RX_RING_CSR_RXD_SIZE,
1112                            rt2x00dev->rx->desc_size / 4);
1113         rt2x00_set_field32(&reg, RX_RING_CSR_RXD_WRITEBACK_SIZE, 4);
1114         rt2x00pci_register_write(rt2x00dev, RX_RING_CSR, reg);
1115
1116         priv_rx = rt2x00dev->rx->entries[0].priv_data;
1117         rt2x00pci_register_read(rt2x00dev, RX_BASE_CSR, &reg);
1118         rt2x00_set_field32(&reg, RX_BASE_CSR_RING_REGISTER,
1119                            priv_rx->desc_dma);
1120         rt2x00pci_register_write(rt2x00dev, RX_BASE_CSR, reg);
1121
1122         rt2x00pci_register_read(rt2x00dev, TX_DMA_DST_CSR, &reg);
1123         rt2x00_set_field32(&reg, TX_DMA_DST_CSR_DEST_AC0, 2);
1124         rt2x00_set_field32(&reg, TX_DMA_DST_CSR_DEST_AC1, 2);
1125         rt2x00_set_field32(&reg, TX_DMA_DST_CSR_DEST_AC2, 2);
1126         rt2x00_set_field32(&reg, TX_DMA_DST_CSR_DEST_AC3, 2);
1127         rt2x00pci_register_write(rt2x00dev, TX_DMA_DST_CSR, reg);
1128
1129         rt2x00pci_register_read(rt2x00dev, LOAD_TX_RING_CSR, &reg);
1130         rt2x00_set_field32(&reg, LOAD_TX_RING_CSR_LOAD_TXD_AC0, 1);
1131         rt2x00_set_field32(&reg, LOAD_TX_RING_CSR_LOAD_TXD_AC1, 1);
1132         rt2x00_set_field32(&reg, LOAD_TX_RING_CSR_LOAD_TXD_AC2, 1);
1133         rt2x00_set_field32(&reg, LOAD_TX_RING_CSR_LOAD_TXD_AC3, 1);
1134         rt2x00pci_register_write(rt2x00dev, LOAD_TX_RING_CSR, reg);
1135
1136         rt2x00pci_register_read(rt2x00dev, RX_CNTL_CSR, &reg);
1137         rt2x00_set_field32(&reg, RX_CNTL_CSR_LOAD_RXD, 1);
1138         rt2x00pci_register_write(rt2x00dev, RX_CNTL_CSR, reg);
1139
1140         return 0;
1141 }
1142
1143 static int rt61pci_init_registers(struct rt2x00_dev *rt2x00dev)
1144 {
1145         u32 reg;
1146
1147         rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
1148         rt2x00_set_field32(&reg, TXRX_CSR0_AUTO_TX_SEQ, 1);
1149         rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX, 0);
1150         rt2x00_set_field32(&reg, TXRX_CSR0_TX_WITHOUT_WAITING, 0);
1151         rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
1152
1153         rt2x00pci_register_read(rt2x00dev, TXRX_CSR1, &reg);
1154         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID0, 47); /* CCK Signal */
1155         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID0_VALID, 1);
1156         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID1, 30); /* Rssi */
1157         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID1_VALID, 1);
1158         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID2, 42); /* OFDM Rate */
1159         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID2_VALID, 1);
1160         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID3, 30); /* Rssi */
1161         rt2x00_set_field32(&reg, TXRX_CSR1_BBP_ID3_VALID, 1);
1162         rt2x00pci_register_write(rt2x00dev, TXRX_CSR1, reg);
1163
1164         /*
1165          * CCK TXD BBP registers
1166          */
1167         rt2x00pci_register_read(rt2x00dev, TXRX_CSR2, &reg);
1168         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID0, 13);
1169         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID0_VALID, 1);
1170         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID1, 12);
1171         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID1_VALID, 1);
1172         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID2, 11);
1173         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID2_VALID, 1);
1174         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID3, 10);
1175         rt2x00_set_field32(&reg, TXRX_CSR2_BBP_ID3_VALID, 1);
1176         rt2x00pci_register_write(rt2x00dev, TXRX_CSR2, reg);
1177
1178         /*
1179          * OFDM TXD BBP registers
1180          */
1181         rt2x00pci_register_read(rt2x00dev, TXRX_CSR3, &reg);
1182         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID0, 7);
1183         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID0_VALID, 1);
1184         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID1, 6);
1185         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID1_VALID, 1);
1186         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID2, 5);
1187         rt2x00_set_field32(&reg, TXRX_CSR3_BBP_ID2_VALID, 1);
1188         rt2x00pci_register_write(rt2x00dev, TXRX_CSR3, reg);
1189
1190         rt2x00pci_register_read(rt2x00dev, TXRX_CSR7, &reg);
1191         rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_6MBS, 59);
1192         rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_9MBS, 53);
1193         rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_12MBS, 49);
1194         rt2x00_set_field32(&reg, TXRX_CSR7_ACK_CTS_18MBS, 46);
1195         rt2x00pci_register_write(rt2x00dev, TXRX_CSR7, reg);
1196
1197         rt2x00pci_register_read(rt2x00dev, TXRX_CSR8, &reg);
1198         rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_24MBS, 44);
1199         rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_36MBS, 42);
1200         rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_48MBS, 42);
1201         rt2x00_set_field32(&reg, TXRX_CSR8_ACK_CTS_54MBS, 42);
1202         rt2x00pci_register_write(rt2x00dev, TXRX_CSR8, reg);
1203
1204         rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
1205         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_INTERVAL, 0);
1206         rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 0);
1207         rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, 0);
1208         rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 0);
1209         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
1210         rt2x00_set_field32(&reg, TXRX_CSR9_TIMESTAMP_COMPENSATE, 0);
1211         rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
1212
1213         rt2x00pci_register_write(rt2x00dev, TXRX_CSR15, 0x0000000f);
1214
1215         rt2x00pci_register_write(rt2x00dev, MAC_CSR6, 0x00000fff);
1216
1217         rt2x00pci_register_read(rt2x00dev, MAC_CSR9, &reg);
1218         rt2x00_set_field32(&reg, MAC_CSR9_CW_SELECT, 0);
1219         rt2x00pci_register_write(rt2x00dev, MAC_CSR9, reg);
1220
1221         rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x0000071c);
1222
1223         if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
1224                 return -EBUSY;
1225
1226         rt2x00pci_register_write(rt2x00dev, MAC_CSR13, 0x0000e000);
1227
1228         /*
1229          * Invalidate all Shared Keys (SEC_CSR0),
1230          * and clear the Shared key Cipher algorithms (SEC_CSR1 & SEC_CSR5)
1231          */
1232         rt2x00pci_register_write(rt2x00dev, SEC_CSR0, 0x00000000);
1233         rt2x00pci_register_write(rt2x00dev, SEC_CSR1, 0x00000000);
1234         rt2x00pci_register_write(rt2x00dev, SEC_CSR5, 0x00000000);
1235
1236         rt2x00pci_register_write(rt2x00dev, PHY_CSR1, 0x000023b0);
1237         rt2x00pci_register_write(rt2x00dev, PHY_CSR5, 0x060a100c);
1238         rt2x00pci_register_write(rt2x00dev, PHY_CSR6, 0x00080606);
1239         rt2x00pci_register_write(rt2x00dev, PHY_CSR7, 0x00000a08);
1240
1241         rt2x00pci_register_write(rt2x00dev, PCI_CFG_CSR, 0x28ca4404);
1242
1243         rt2x00pci_register_write(rt2x00dev, TEST_MODE_CSR, 0x00000200);
1244
1245         rt2x00pci_register_write(rt2x00dev, M2H_CMD_DONE_CSR, 0xffffffff);
1246
1247         rt2x00pci_register_read(rt2x00dev, AC_TXOP_CSR0, &reg);
1248         rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC0_TX_OP, 0);
1249         rt2x00_set_field32(&reg, AC_TXOP_CSR0_AC1_TX_OP, 0);
1250         rt2x00pci_register_write(rt2x00dev, AC_TXOP_CSR0, reg);
1251
1252         rt2x00pci_register_read(rt2x00dev, AC_TXOP_CSR1, &reg);
1253         rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC2_TX_OP, 192);
1254         rt2x00_set_field32(&reg, AC_TXOP_CSR1_AC3_TX_OP, 48);
1255         rt2x00pci_register_write(rt2x00dev, AC_TXOP_CSR1, reg);
1256
1257         /*
1258          * Clear all beacons
1259          * For the Beacon base registers we only need to clear
1260          * the first byte since that byte contains the VALID and OWNER
1261          * bits which (when set to 0) will invalidate the entire beacon.
1262          */
1263         rt2x00pci_register_write(rt2x00dev, HW_BEACON_BASE0, 0);
1264         rt2x00pci_register_write(rt2x00dev, HW_BEACON_BASE1, 0);
1265         rt2x00pci_register_write(rt2x00dev, HW_BEACON_BASE2, 0);
1266         rt2x00pci_register_write(rt2x00dev, HW_BEACON_BASE3, 0);
1267
1268         /*
1269          * We must clear the error counters.
1270          * These registers are cleared on read,
1271          * so we may pass a useless variable to store the value.
1272          */
1273         rt2x00pci_register_read(rt2x00dev, STA_CSR0, &reg);
1274         rt2x00pci_register_read(rt2x00dev, STA_CSR1, &reg);
1275         rt2x00pci_register_read(rt2x00dev, STA_CSR2, &reg);
1276
1277         /*
1278          * Reset MAC and BBP registers.
1279          */
1280         rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
1281         rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 1);
1282         rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 1);
1283         rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1284
1285         rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
1286         rt2x00_set_field32(&reg, MAC_CSR1_SOFT_RESET, 0);
1287         rt2x00_set_field32(&reg, MAC_CSR1_BBP_RESET, 0);
1288         rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1289
1290         rt2x00pci_register_read(rt2x00dev, MAC_CSR1, &reg);
1291         rt2x00_set_field32(&reg, MAC_CSR1_HOST_READY, 1);
1292         rt2x00pci_register_write(rt2x00dev, MAC_CSR1, reg);
1293
1294         return 0;
1295 }
1296
1297 static int rt61pci_init_bbp(struct rt2x00_dev *rt2x00dev)
1298 {
1299         unsigned int i;
1300         u16 eeprom;
1301         u8 reg_id;
1302         u8 value;
1303
1304         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1305                 rt61pci_bbp_read(rt2x00dev, 0, &value);
1306                 if ((value != 0xff) && (value != 0x00))
1307                         goto continue_csr_init;
1308                 NOTICE(rt2x00dev, "Waiting for BBP register.\n");
1309                 udelay(REGISTER_BUSY_DELAY);
1310         }
1311
1312         ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
1313         return -EACCES;
1314
1315 continue_csr_init:
1316         rt61pci_bbp_write(rt2x00dev, 3, 0x00);
1317         rt61pci_bbp_write(rt2x00dev, 15, 0x30);
1318         rt61pci_bbp_write(rt2x00dev, 21, 0xc8);
1319         rt61pci_bbp_write(rt2x00dev, 22, 0x38);
1320         rt61pci_bbp_write(rt2x00dev, 23, 0x06);
1321         rt61pci_bbp_write(rt2x00dev, 24, 0xfe);
1322         rt61pci_bbp_write(rt2x00dev, 25, 0x0a);
1323         rt61pci_bbp_write(rt2x00dev, 26, 0x0d);
1324         rt61pci_bbp_write(rt2x00dev, 34, 0x12);
1325         rt61pci_bbp_write(rt2x00dev, 37, 0x07);
1326         rt61pci_bbp_write(rt2x00dev, 39, 0xf8);
1327         rt61pci_bbp_write(rt2x00dev, 41, 0x60);
1328         rt61pci_bbp_write(rt2x00dev, 53, 0x10);
1329         rt61pci_bbp_write(rt2x00dev, 54, 0x18);
1330         rt61pci_bbp_write(rt2x00dev, 60, 0x10);
1331         rt61pci_bbp_write(rt2x00dev, 61, 0x04);
1332         rt61pci_bbp_write(rt2x00dev, 62, 0x04);
1333         rt61pci_bbp_write(rt2x00dev, 75, 0xfe);
1334         rt61pci_bbp_write(rt2x00dev, 86, 0xfe);
1335         rt61pci_bbp_write(rt2x00dev, 88, 0xfe);
1336         rt61pci_bbp_write(rt2x00dev, 90, 0x0f);
1337         rt61pci_bbp_write(rt2x00dev, 99, 0x00);
1338         rt61pci_bbp_write(rt2x00dev, 102, 0x16);
1339         rt61pci_bbp_write(rt2x00dev, 107, 0x04);
1340
1341         for (i = 0; i < EEPROM_BBP_SIZE; i++) {
1342                 rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
1343
1344                 if (eeprom != 0xffff && eeprom != 0x0000) {
1345                         reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
1346                         value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
1347                         rt61pci_bbp_write(rt2x00dev, reg_id, value);
1348                 }
1349         }
1350
1351         return 0;
1352 }
1353
1354 /*
1355  * Device state switch handlers.
1356  */
1357 static void rt61pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
1358                               enum dev_state state)
1359 {
1360         u32 reg;
1361
1362         rt2x00pci_register_read(rt2x00dev, TXRX_CSR0, &reg);
1363         rt2x00_set_field32(&reg, TXRX_CSR0_DISABLE_RX,
1364                            state == STATE_RADIO_RX_OFF);
1365         rt2x00pci_register_write(rt2x00dev, TXRX_CSR0, reg);
1366 }
1367
1368 static void rt61pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
1369                                enum dev_state state)
1370 {
1371         int mask = (state == STATE_RADIO_IRQ_OFF);
1372         u32 reg;
1373
1374         /*
1375          * When interrupts are being enabled, the interrupt registers
1376          * should clear the register to assure a clean state.
1377          */
1378         if (state == STATE_RADIO_IRQ_ON) {
1379                 rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
1380                 rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
1381
1382                 rt2x00pci_register_read(rt2x00dev, MCU_INT_SOURCE_CSR, &reg);
1383                 rt2x00pci_register_write(rt2x00dev, MCU_INT_SOURCE_CSR, reg);
1384         }
1385
1386         /*
1387          * Only toggle the interrupts bits we are going to use.
1388          * Non-checked interrupt bits are disabled by default.
1389          */
1390         rt2x00pci_register_read(rt2x00dev, INT_MASK_CSR, &reg);
1391         rt2x00_set_field32(&reg, INT_MASK_CSR_TXDONE, mask);
1392         rt2x00_set_field32(&reg, INT_MASK_CSR_RXDONE, mask);
1393         rt2x00_set_field32(&reg, INT_MASK_CSR_ENABLE_MITIGATION, mask);
1394         rt2x00_set_field32(&reg, INT_MASK_CSR_MITIGATION_PERIOD, 0xff);
1395         rt2x00pci_register_write(rt2x00dev, INT_MASK_CSR, reg);
1396
1397         rt2x00pci_register_read(rt2x00dev, MCU_INT_MASK_CSR, &reg);
1398         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_0, mask);
1399         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_1, mask);
1400         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_2, mask);
1401         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_3, mask);
1402         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_4, mask);
1403         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_5, mask);
1404         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_6, mask);
1405         rt2x00_set_field32(&reg, MCU_INT_MASK_CSR_7, mask);
1406         rt2x00pci_register_write(rt2x00dev, MCU_INT_MASK_CSR, reg);
1407 }
1408
1409 static int rt61pci_enable_radio(struct rt2x00_dev *rt2x00dev)
1410 {
1411         u32 reg;
1412
1413         /*
1414          * Initialize all registers.
1415          */
1416         if (rt61pci_init_queues(rt2x00dev) ||
1417             rt61pci_init_registers(rt2x00dev) ||
1418             rt61pci_init_bbp(rt2x00dev)) {
1419                 ERROR(rt2x00dev, "Register initialization failed.\n");
1420                 return -EIO;
1421         }
1422
1423         /*
1424          * Enable interrupts.
1425          */
1426         rt61pci_toggle_irq(rt2x00dev, STATE_RADIO_IRQ_ON);
1427
1428         /*
1429          * Enable RX.
1430          */
1431         rt2x00pci_register_read(rt2x00dev, RX_CNTL_CSR, &reg);
1432         rt2x00_set_field32(&reg, RX_CNTL_CSR_ENABLE_RX_DMA, 1);
1433         rt2x00pci_register_write(rt2x00dev, RX_CNTL_CSR, reg);
1434
1435         return 0;
1436 }
1437
1438 static void rt61pci_disable_radio(struct rt2x00_dev *rt2x00dev)
1439 {
1440         u32 reg;
1441
1442         rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
1443
1444         /*
1445          * Disable synchronisation.
1446          */
1447         rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, 0);
1448
1449         /*
1450          * Cancel RX and TX.
1451          */
1452         rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, &reg);
1453         rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC0, 1);
1454         rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC1, 1);
1455         rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC2, 1);
1456         rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC3, 1);
1457         rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
1458
1459         /*
1460          * Disable interrupts.
1461          */
1462         rt61pci_toggle_irq(rt2x00dev, STATE_RADIO_IRQ_OFF);
1463 }
1464
1465 static int rt61pci_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state)
1466 {
1467         u32 reg;
1468         unsigned int i;
1469         char put_to_sleep;
1470         char current_state;
1471
1472         put_to_sleep = (state != STATE_AWAKE);
1473
1474         rt2x00pci_register_read(rt2x00dev, MAC_CSR12, &reg);
1475         rt2x00_set_field32(&reg, MAC_CSR12_FORCE_WAKEUP, !put_to_sleep);
1476         rt2x00_set_field32(&reg, MAC_CSR12_PUT_TO_SLEEP, put_to_sleep);
1477         rt2x00pci_register_write(rt2x00dev, MAC_CSR12, reg);
1478
1479         /*
1480          * Device is not guaranteed to be in the requested state yet.
1481          * We must wait until the register indicates that the
1482          * device has entered the correct state.
1483          */
1484         for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
1485                 rt2x00pci_register_read(rt2x00dev, MAC_CSR12, &reg);
1486                 current_state =
1487                     rt2x00_get_field32(reg, MAC_CSR12_BBP_CURRENT_STATE);
1488                 if (current_state == !put_to_sleep)
1489                         return 0;
1490                 msleep(10);
1491         }
1492
1493         NOTICE(rt2x00dev, "Device failed to enter state %d, "
1494                "current device state %d.\n", !put_to_sleep, current_state);
1495
1496         return -EBUSY;
1497 }
1498
1499 static int rt61pci_set_device_state(struct rt2x00_dev *rt2x00dev,
1500                                     enum dev_state state)
1501 {
1502         int retval = 0;
1503
1504         switch (state) {
1505         case STATE_RADIO_ON:
1506                 retval = rt61pci_enable_radio(rt2x00dev);
1507                 break;
1508         case STATE_RADIO_OFF:
1509                 rt61pci_disable_radio(rt2x00dev);
1510                 break;
1511         case STATE_RADIO_RX_ON:
1512         case STATE_RADIO_RX_ON_LINK:
1513                 rt61pci_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
1514                 break;
1515         case STATE_RADIO_RX_OFF:
1516         case STATE_RADIO_RX_OFF_LINK:
1517                 rt61pci_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
1518                 break;
1519         case STATE_DEEP_SLEEP:
1520         case STATE_SLEEP:
1521         case STATE_STANDBY:
1522         case STATE_AWAKE:
1523                 retval = rt61pci_set_state(rt2x00dev, state);
1524                 break;
1525         default:
1526                 retval = -ENOTSUPP;
1527                 break;
1528         }
1529
1530         return retval;
1531 }
1532
1533 /*
1534  * TX descriptor initialization
1535  */
1536 static void rt61pci_write_tx_desc(struct rt2x00_dev *rt2x00dev,
1537                                     struct sk_buff *skb,
1538                                     struct txentry_desc *txdesc,
1539                                     struct ieee80211_tx_control *control)
1540 {
1541         struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
1542         __le32 *txd = skbdesc->desc;
1543         u32 word;
1544
1545         /*
1546          * Start writing the descriptor words.
1547          */
1548         rt2x00_desc_read(txd, 1, &word);
1549         rt2x00_set_field32(&word, TXD_W1_HOST_Q_ID, txdesc->queue);
1550         rt2x00_set_field32(&word, TXD_W1_AIFSN, txdesc->aifs);
1551         rt2x00_set_field32(&word, TXD_W1_CWMIN, txdesc->cw_min);
1552         rt2x00_set_field32(&word, TXD_W1_CWMAX, txdesc->cw_max);
1553         rt2x00_set_field32(&word, TXD_W1_IV_OFFSET, IEEE80211_HEADER);
1554         rt2x00_set_field32(&word, TXD_W1_HW_SEQUENCE, 1);
1555         rt2x00_desc_write(txd, 1, word);
1556
1557         rt2x00_desc_read(txd, 2, &word);
1558         rt2x00_set_field32(&word, TXD_W2_PLCP_SIGNAL, txdesc->signal);
1559         rt2x00_set_field32(&word, TXD_W2_PLCP_SERVICE, txdesc->service);
1560         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_LOW, txdesc->length_low);
1561         rt2x00_set_field32(&word, TXD_W2_PLCP_LENGTH_HIGH, txdesc->length_high);
1562         rt2x00_desc_write(txd, 2, word);
1563
1564         rt2x00_desc_read(txd, 5, &word);
1565         rt2x00_set_field32(&word, TXD_W5_TX_POWER,
1566                            TXPOWER_TO_DEV(rt2x00dev->tx_power));
1567         rt2x00_set_field32(&word, TXD_W5_WAITING_DMA_DONE_INT, 1);
1568         rt2x00_desc_write(txd, 5, word);
1569
1570         if (skbdesc->desc_len > TXINFO_SIZE) {
1571                 rt2x00_desc_read(txd, 11, &word);
1572                 rt2x00_set_field32(&word, TXD_W11_BUFFER_LENGTH0, skbdesc->data_len);
1573                 rt2x00_desc_write(txd, 11, word);
1574         }
1575
1576         rt2x00_desc_read(txd, 0, &word);
1577         rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1);
1578         rt2x00_set_field32(&word, TXD_W0_VALID, 1);
1579         rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
1580                            test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
1581         rt2x00_set_field32(&word, TXD_W0_ACK,
1582                            test_bit(ENTRY_TXD_ACK, &txdesc->flags));
1583         rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
1584                            test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
1585         rt2x00_set_field32(&word, TXD_W0_OFDM,
1586                            test_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags));
1587         rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs);
1588         rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
1589                            !!(control->flags &
1590                               IEEE80211_TXCTL_LONG_RETRY_LIMIT));
1591         rt2x00_set_field32(&word, TXD_W0_TKIP_MIC, 0);
1592         rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, skbdesc->data_len);
1593         rt2x00_set_field32(&word, TXD_W0_BURST,
1594                            test_bit(ENTRY_TXD_BURST, &txdesc->flags));
1595         rt2x00_set_field32(&word, TXD_W0_CIPHER_ALG, CIPHER_NONE);
1596         rt2x00_desc_write(txd, 0, word);
1597 }
1598
1599 /*
1600  * TX data initialization
1601  */
1602 static void rt61pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
1603                                   const unsigned int queue)
1604 {
1605         u32 reg;
1606
1607         if (queue == RT2X00_BCN_QUEUE_BEACON) {
1608                 /*
1609                  * For Wi-Fi faily generated beacons between participating
1610                  * stations. Set TBTT phase adaptive adjustment step to 8us.
1611                  */
1612                 rt2x00pci_register_write(rt2x00dev, TXRX_CSR10, 0x00001008);
1613
1614                 rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
1615                 if (!rt2x00_get_field32(reg, TXRX_CSR9_BEACON_GEN)) {
1616                         rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
1617                         rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
1618                         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 1);
1619                         rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
1620                 }
1621                 return;
1622         }
1623
1624         rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, &reg);
1625         rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_AC0,
1626                            (queue == IEEE80211_TX_QUEUE_DATA0));
1627         rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_AC1,
1628                            (queue == IEEE80211_TX_QUEUE_DATA1));
1629         rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_AC2,
1630                            (queue == IEEE80211_TX_QUEUE_DATA2));
1631         rt2x00_set_field32(&reg, TX_CNTL_CSR_KICK_TX_AC3,
1632                            (queue == IEEE80211_TX_QUEUE_DATA3));
1633         rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
1634 }
1635
1636 /*
1637  * RX control handlers
1638  */
1639 static int rt61pci_agc_to_rssi(struct rt2x00_dev *rt2x00dev, int rxd_w1)
1640 {
1641         u16 eeprom;
1642         u8 offset;
1643         u8 lna;
1644
1645         lna = rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_LNA);
1646         switch (lna) {
1647         case 3:
1648                 offset = 90;
1649                 break;
1650         case 2:
1651                 offset = 74;
1652                 break;
1653         case 1:
1654                 offset = 64;
1655                 break;
1656         default:
1657                 return 0;
1658         }
1659
1660         if (rt2x00dev->rx_status.band == IEEE80211_BAND_5GHZ) {
1661                 if (test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags))
1662                         offset += 14;
1663
1664                 if (lna == 3 || lna == 2)
1665                         offset += 10;
1666
1667                 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &eeprom);
1668                 offset -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_A_1);
1669         } else {
1670                 if (test_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags))
1671                         offset += 14;
1672
1673                 rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &eeprom);
1674                 offset -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_BG_1);
1675         }
1676
1677         return rt2x00_get_field32(rxd_w1, RXD_W1_RSSI_AGC) * 2 - offset;
1678 }
1679
1680 static void rt61pci_fill_rxdone(struct queue_entry *entry,
1681                                 struct rxdone_entry_desc *rxdesc)
1682 {
1683         struct queue_entry_priv_pci_rx *priv_rx = entry->priv_data;
1684         u32 word0;
1685         u32 word1;
1686
1687         rt2x00_desc_read(priv_rx->desc, 0, &word0);
1688         rt2x00_desc_read(priv_rx->desc, 1, &word1);
1689
1690         rxdesc->flags = 0;
1691         if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
1692                 rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
1693
1694         /*
1695          * Obtain the status about this packet.
1696          * When frame was received with an OFDM bitrate,
1697          * the signal is the PLCP value. If it was received with
1698          * a CCK bitrate the signal is the rate in 100kbit/s.
1699          */
1700         rxdesc->signal = rt2x00_get_field32(word1, RXD_W1_SIGNAL);
1701         rxdesc->rssi = rt61pci_agc_to_rssi(entry->queue->rt2x00dev, word1);
1702         rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
1703
1704         rxdesc->dev_flags = 0;
1705         if (rt2x00_get_field32(word0, RXD_W0_OFDM))
1706                 rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
1707         if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
1708                 rxdesc->dev_flags |= RXDONE_MY_BSS;
1709 }
1710
1711 /*
1712  * Interrupt functions.
1713  */
1714 static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
1715 {
1716         struct data_queue *queue;
1717         struct queue_entry *entry;
1718         struct queue_entry *entry_done;
1719         struct queue_entry_priv_pci_tx *priv_tx;
1720         struct txdone_entry_desc txdesc;
1721         u32 word;
1722         u32 reg;
1723         u32 old_reg;
1724         int type;
1725         int index;
1726
1727         /*
1728          * During each loop we will compare the freshly read
1729          * STA_CSR4 register value with the value read from
1730          * the previous loop. If the 2 values are equal then
1731          * we should stop processing because the chance it
1732          * quite big that the device has been unplugged and
1733          * we risk going into an endless loop.
1734          */
1735         old_reg = 0;
1736
1737         while (1) {
1738                 rt2x00pci_register_read(rt2x00dev, STA_CSR4, &reg);
1739                 if (!rt2x00_get_field32(reg, STA_CSR4_VALID))
1740                         break;
1741
1742                 if (old_reg == reg)
1743                         break;
1744                 old_reg = reg;
1745
1746                 /*
1747                  * Skip this entry when it contains an invalid
1748                  * queue identication number.
1749                  */
1750                 type = rt2x00_get_field32(reg, STA_CSR4_PID_TYPE);
1751                 queue = rt2x00queue_get_queue(rt2x00dev, type);
1752                 if (unlikely(!queue))
1753                         continue;
1754
1755                 /*
1756                  * Skip this entry when it contains an invalid
1757                  * index number.
1758                  */
1759                 index = rt2x00_get_field32(reg, STA_CSR4_PID_SUBTYPE);
1760                 if (unlikely(index >= queue->limit))
1761                         continue;
1762
1763                 entry = &queue->entries[index];
1764                 priv_tx = entry->priv_data;
1765                 rt2x00_desc_read(priv_tx->desc, 0, &word);
1766
1767                 if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
1768                     !rt2x00_get_field32(word, TXD_W0_VALID))
1769                         return;
1770
1771                 entry_done = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
1772                 while (entry != entry_done) {
1773                         /* Catch up.
1774                          * Just report any entries we missed as failed.
1775                          */
1776                         WARNING(rt2x00dev,
1777                                 "TX status report missed for entry %d\n",
1778                                 entry_done->entry_idx);
1779
1780                         txdesc.status = TX_FAIL_OTHER;
1781                         txdesc.retry = 0;
1782
1783                         rt2x00pci_txdone(rt2x00dev, entry_done, &txdesc);
1784                         entry_done = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
1785                 }
1786
1787                 /*
1788                  * Obtain the status about this packet.
1789                  */
1790                 txdesc.status = rt2x00_get_field32(reg, STA_CSR4_TX_RESULT);
1791                 txdesc.retry = rt2x00_get_field32(reg, STA_CSR4_RETRY_COUNT);
1792
1793                 rt2x00pci_txdone(rt2x00dev, entry, &txdesc);
1794         }
1795 }
1796
1797 static irqreturn_t rt61pci_interrupt(int irq, void *dev_instance)
1798 {
1799         struct rt2x00_dev *rt2x00dev = dev_instance;
1800         u32 reg_mcu;
1801         u32 reg;
1802
1803         /*
1804          * Get the interrupt sources & saved to local variable.
1805          * Write register value back to clear pending interrupts.
1806          */
1807         rt2x00pci_register_read(rt2x00dev, MCU_INT_SOURCE_CSR, &reg_mcu);
1808         rt2x00pci_register_write(rt2x00dev, MCU_INT_SOURCE_CSR, reg_mcu);
1809
1810         rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
1811         rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
1812
1813         if (!reg && !reg_mcu)
1814                 return IRQ_NONE;
1815
1816         if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
1817                 return IRQ_HANDLED;
1818
1819         /*
1820          * Handle interrupts, walk through all bits
1821          * and run the tasks, the bits are checked in order of
1822          * priority.
1823          */
1824
1825         /*
1826          * 1 - Rx ring done interrupt.
1827          */
1828         if (rt2x00_get_field32(reg, INT_SOURCE_CSR_RXDONE))
1829                 rt2x00pci_rxdone(rt2x00dev);
1830
1831         /*
1832          * 2 - Tx ring done interrupt.
1833          */
1834         if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TXDONE))
1835                 rt61pci_txdone(rt2x00dev);
1836
1837         /*
1838          * 3 - Handle MCU command done.
1839          */
1840         if (reg_mcu)
1841                 rt2x00pci_register_write(rt2x00dev,
1842                                          M2H_CMD_DONE_CSR, 0xffffffff);
1843
1844         return IRQ_HANDLED;
1845 }
1846
1847 /*
1848  * Device probe functions.
1849  */
1850 static int rt61pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
1851 {
1852         struct eeprom_93cx6 eeprom;
1853         u32 reg;
1854         u16 word;
1855         u8 *mac;
1856         s8 value;
1857
1858         rt2x00pci_register_read(rt2x00dev, E2PROM_CSR, &reg);
1859
1860         eeprom.data = rt2x00dev;
1861         eeprom.register_read = rt61pci_eepromregister_read;
1862         eeprom.register_write = rt61pci_eepromregister_write;
1863         eeprom.width = rt2x00_get_field32(reg, E2PROM_CSR_TYPE_93C46) ?
1864             PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
1865         eeprom.reg_data_in = 0;
1866         eeprom.reg_data_out = 0;
1867         eeprom.reg_data_clock = 0;
1868         eeprom.reg_chip_select = 0;
1869
1870         eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
1871                                EEPROM_SIZE / sizeof(u16));
1872
1873         /*
1874          * Start validation of the data that has been read.
1875          */
1876         mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
1877         if (!is_valid_ether_addr(mac)) {
1878                 DECLARE_MAC_BUF(macbuf);
1879
1880                 random_ether_addr(mac);
1881                 EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac));
1882         }
1883
1884         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
1885         if (word == 0xffff) {
1886                 rt2x00_set_field16(&word, EEPROM_ANTENNA_NUM, 2);
1887                 rt2x00_set_field16(&word, EEPROM_ANTENNA_TX_DEFAULT,
1888                                    ANTENNA_B);
1889                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RX_DEFAULT,
1890                                    ANTENNA_B);
1891                 rt2x00_set_field16(&word, EEPROM_ANTENNA_FRAME_TYPE, 0);
1892                 rt2x00_set_field16(&word, EEPROM_ANTENNA_DYN_TXAGC, 0);
1893                 rt2x00_set_field16(&word, EEPROM_ANTENNA_HARDWARE_RADIO, 0);
1894                 rt2x00_set_field16(&word, EEPROM_ANTENNA_RF_TYPE, RF5225);
1895                 rt2x00_eeprom_write(rt2x00dev, EEPROM_ANTENNA, word);
1896                 EEPROM(rt2x00dev, "Antenna: 0x%04x\n", word);
1897         }
1898
1899         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &word);
1900         if (word == 0xffff) {
1901                 rt2x00_set_field16(&word, EEPROM_NIC_ENABLE_DIVERSITY, 0);
1902                 rt2x00_set_field16(&word, EEPROM_NIC_TX_DIVERSITY, 0);
1903                 rt2x00_set_field16(&word, EEPROM_NIC_TX_RX_FIXED, 0);
1904                 rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA_BG, 0);
1905                 rt2x00_set_field16(&word, EEPROM_NIC_CARDBUS_ACCEL, 0);
1906                 rt2x00_set_field16(&word, EEPROM_NIC_EXTERNAL_LNA_A, 0);
1907                 rt2x00_eeprom_write(rt2x00dev, EEPROM_NIC, word);
1908                 EEPROM(rt2x00dev, "NIC: 0x%04x\n", word);
1909         }
1910
1911         rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &word);
1912         if (word == 0xffff) {
1913                 rt2x00_set_field16(&word, EEPROM_LED_LED_MODE,
1914                                    LED_MODE_DEFAULT);
1915                 rt2x00_eeprom_write(rt2x00dev, EEPROM_LED, word);
1916                 EEPROM(rt2x00dev, "Led: 0x%04x\n", word);
1917         }
1918
1919         rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &word);
1920         if (word == 0xffff) {
1921                 rt2x00_set_field16(&word, EEPROM_FREQ_OFFSET, 0);
1922                 rt2x00_set_field16(&word, EEPROM_FREQ_SEQ, 0);
1923                 rt2x00_eeprom_write(rt2x00dev, EEPROM_FREQ, word);
1924                 EEPROM(rt2x00dev, "Freq: 0x%04x\n", word);
1925         }
1926
1927         rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &word);
1928         if (word == 0xffff) {
1929                 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
1930                 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
1931                 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
1932                 EEPROM(rt2x00dev, "RSSI OFFSET BG: 0x%04x\n", word);
1933         } else {
1934                 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_1);
1935                 if (value < -10 || value > 10)
1936                         rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_1, 0);
1937                 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_BG_2);
1938                 if (value < -10 || value > 10)
1939                         rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_BG_2, 0);
1940                 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_BG, word);
1941         }
1942
1943         rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &word);
1944         if (word == 0xffff) {
1945                 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
1946                 rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
1947                 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
1948                 EEPROM(rt2x00dev, "RSSI OFFSET A: 0x%04x\n", word);
1949         } else {
1950                 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_1);
1951                 if (value < -10 || value > 10)
1952                         rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_1, 0);
1953                 value = rt2x00_get_field16(word, EEPROM_RSSI_OFFSET_A_2);
1954                 if (value < -10 || value > 10)
1955                         rt2x00_set_field16(&word, EEPROM_RSSI_OFFSET_A_2, 0);
1956                 rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_OFFSET_A, word);
1957         }
1958
1959         return 0;
1960 }
1961
1962 static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
1963 {
1964         u32 reg;
1965         u16 value;
1966         u16 eeprom;
1967         u16 device;
1968
1969         /*
1970          * Read EEPROM word for configuration.
1971          */
1972         rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
1973
1974         /*
1975          * Identify RF chipset.
1976          * To determine the RT chip we have to read the
1977          * PCI header of the device.
1978          */
1979         pci_read_config_word(rt2x00dev_pci(rt2x00dev),
1980                              PCI_CONFIG_HEADER_DEVICE, &device);
1981         value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
1982         rt2x00pci_register_read(rt2x00dev, MAC_CSR0, &reg);
1983         rt2x00_set_chip(rt2x00dev, device, value, reg);
1984
1985         if (!rt2x00_rf(&rt2x00dev->chip, RF5225) &&
1986             !rt2x00_rf(&rt2x00dev->chip, RF5325) &&
1987             !rt2x00_rf(&rt2x00dev->chip, RF2527) &&
1988             !rt2x00_rf(&rt2x00dev->chip, RF2529)) {
1989                 ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
1990                 return -ENODEV;
1991         }
1992
1993         /*
1994          * Determine number of antenna's.
1995          */
1996         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_NUM) == 2)
1997                 __set_bit(CONFIG_DOUBLE_ANTENNA, &rt2x00dev->flags);
1998
1999         /*
2000          * Identify default antenna configuration.
2001          */
2002         rt2x00dev->default_ant.tx =
2003             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
2004         rt2x00dev->default_ant.rx =
2005             rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
2006
2007         /*
2008          * Read the Frame type.
2009          */
2010         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_FRAME_TYPE))
2011                 __set_bit(CONFIG_FRAME_TYPE, &rt2x00dev->flags);
2012
2013         /*
2014          * Detect if this device has an hardware controlled radio.
2015          */
2016 #ifdef CONFIG_RT61PCI_RFKILL
2017         if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
2018                 __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
2019 #endif /* CONFIG_RT61PCI_RFKILL */
2020
2021         /*
2022          * Read frequency offset and RF programming sequence.
2023          */
2024         rt2x00_eeprom_read(rt2x00dev, EEPROM_FREQ, &eeprom);
2025         if (rt2x00_get_field16(eeprom, EEPROM_FREQ_SEQ))
2026                 __set_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags);
2027
2028         rt2x00dev->freq_offset = rt2x00_get_field16(eeprom, EEPROM_FREQ_OFFSET);
2029
2030         /*
2031          * Read external LNA informations.
2032          */
2033         rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC, &eeprom);
2034
2035         if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA_A))
2036                 __set_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);
2037         if (rt2x00_get_field16(eeprom, EEPROM_NIC_EXTERNAL_LNA_BG))
2038                 __set_bit(CONFIG_EXTERNAL_LNA_BG, &rt2x00dev->flags);
2039
2040         /*
2041          * When working with a RF2529 chip without double antenna
2042          * the antenna settings should be gathered from the NIC
2043          * eeprom word.
2044          */
2045         if (rt2x00_rf(&rt2x00dev->chip, RF2529) &&
2046             !test_bit(CONFIG_DOUBLE_ANTENNA, &rt2x00dev->flags)) {
2047                 switch (rt2x00_get_field16(eeprom, EEPROM_NIC_TX_RX_FIXED)) {
2048                 case 0:
2049                         rt2x00dev->default_ant.tx = ANTENNA_B;
2050                         rt2x00dev->default_ant.rx = ANTENNA_A;
2051                         break;
2052                 case 1:
2053                         rt2x00dev->default_ant.tx = ANTENNA_B;
2054                         rt2x00dev->default_ant.rx = ANTENNA_B;
2055                         break;
2056                 case 2:
2057                         rt2x00dev->default_ant.tx = ANTENNA_A;
2058                         rt2x00dev->default_ant.rx = ANTENNA_A;
2059                         break;
2060                 case 3:
2061                         rt2x00dev->default_ant.tx = ANTENNA_A;
2062                         rt2x00dev->default_ant.rx = ANTENNA_B;
2063                         break;
2064                 }
2065
2066                 if (rt2x00_get_field16(eeprom, EEPROM_NIC_TX_DIVERSITY))
2067                         rt2x00dev->default_ant.tx = ANTENNA_SW_DIVERSITY;
2068                 if (rt2x00_get_field16(eeprom, EEPROM_NIC_ENABLE_DIVERSITY))
2069                         rt2x00dev->default_ant.rx = ANTENNA_SW_DIVERSITY;
2070         }
2071
2072         /*
2073          * Store led settings, for correct led behaviour.
2074          * If the eeprom value is invalid,
2075          * switch to default led mode.
2076          */
2077 #ifdef CONFIG_RT61PCI_LEDS
2078         rt2x00_eeprom_read(rt2x00dev, EEPROM_LED, &eeprom);
2079         value = rt2x00_get_field16(eeprom, EEPROM_LED_LED_MODE);
2080
2081         rt2x00dev->led_radio.rt2x00dev = rt2x00dev;
2082         rt2x00dev->led_radio.type = LED_TYPE_RADIO;
2083         rt2x00dev->led_radio.led_dev.brightness_set =
2084             rt61pci_brightness_set;
2085         rt2x00dev->led_radio.led_dev.blink_set =
2086             rt61pci_blink_set;
2087         rt2x00dev->led_radio.flags = LED_INITIALIZED;
2088
2089         rt2x00dev->led_assoc.rt2x00dev = rt2x00dev;
2090         rt2x00dev->led_assoc.type = LED_TYPE_ASSOC;
2091         rt2x00dev->led_assoc.led_dev.brightness_set =
2092             rt61pci_brightness_set;
2093         rt2x00dev->led_assoc.led_dev.blink_set =
2094             rt61pci_blink_set;
2095         rt2x00dev->led_assoc.flags = LED_INITIALIZED;
2096
2097         if (value == LED_MODE_SIGNAL_STRENGTH) {
2098                 rt2x00dev->led_qual.rt2x00dev = rt2x00dev;
2099                 rt2x00dev->led_qual.type = LED_TYPE_QUALITY;
2100                 rt2x00dev->led_qual.led_dev.brightness_set =
2101                     rt61pci_brightness_set;
2102                 rt2x00dev->led_qual.led_dev.blink_set =
2103                     rt61pci_blink_set;
2104                 rt2x00dev->led_qual.flags = LED_INITIALIZED;
2105         }
2106
2107         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_LED_MODE, value);
2108         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_0,
2109                            rt2x00_get_field16(eeprom,
2110                                               EEPROM_LED_POLARITY_GPIO_0));
2111         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_1,
2112                            rt2x00_get_field16(eeprom,
2113                                               EEPROM_LED_POLARITY_GPIO_1));
2114         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_2,
2115                            rt2x00_get_field16(eeprom,
2116                                               EEPROM_LED_POLARITY_GPIO_2));
2117         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_3,
2118                            rt2x00_get_field16(eeprom,
2119                                               EEPROM_LED_POLARITY_GPIO_3));
2120         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_GPIO_4,
2121                            rt2x00_get_field16(eeprom,
2122                                               EEPROM_LED_POLARITY_GPIO_4));
2123         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_ACT,
2124                            rt2x00_get_field16(eeprom, EEPROM_LED_POLARITY_ACT));
2125         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_BG,
2126                            rt2x00_get_field16(eeprom,
2127                                               EEPROM_LED_POLARITY_RDY_G));
2128         rt2x00_set_field16(&rt2x00dev->led_mcu_reg, MCU_LEDCS_POLARITY_READY_A,
2129                            rt2x00_get_field16(eeprom,
2130                                               EEPROM_LED_POLARITY_RDY_A));
2131 #endif /* CONFIG_RT61PCI_LEDS */
2132
2133         return 0;
2134 }
2135
2136 /*
2137  * RF value list for RF5225 & RF5325
2138  * Supports: 2.4 GHz & 5.2 GHz, rf_sequence disabled
2139  */
2140 static const struct rf_channel rf_vals_noseq[] = {
2141         { 1,  0x00002ccc, 0x00004786, 0x00068455, 0x000ffa0b },
2142         { 2,  0x00002ccc, 0x00004786, 0x00068455, 0x000ffa1f },
2143         { 3,  0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa0b },
2144         { 4,  0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa1f },
2145         { 5,  0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa0b },
2146         { 6,  0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa1f },
2147         { 7,  0x00002ccc, 0x00004792, 0x00068455, 0x000ffa0b },
2148         { 8,  0x00002ccc, 0x00004792, 0x00068455, 0x000ffa1f },
2149         { 9,  0x00002ccc, 0x00004796, 0x00068455, 0x000ffa0b },
2150         { 10, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa1f },
2151         { 11, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa0b },
2152         { 12, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa1f },
2153         { 13, 0x00002ccc, 0x0000479e, 0x00068455, 0x000ffa0b },
2154         { 14, 0x00002ccc, 0x000047a2, 0x00068455, 0x000ffa13 },
2155
2156         /* 802.11 UNI / HyperLan 2 */
2157         { 36, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa23 },
2158         { 40, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa03 },
2159         { 44, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa0b },
2160         { 48, 0x00002ccc, 0x000049aa, 0x0009be55, 0x000ffa13 },
2161         { 52, 0x00002ccc, 0x000049ae, 0x0009ae55, 0x000ffa1b },
2162         { 56, 0x00002ccc, 0x000049b2, 0x0009ae55, 0x000ffa23 },
2163         { 60, 0x00002ccc, 0x000049ba, 0x0009ae55, 0x000ffa03 },
2164         { 64, 0x00002ccc, 0x000049be, 0x0009ae55, 0x000ffa0b },
2165
2166         /* 802.11 HyperLan 2 */
2167         { 100, 0x00002ccc, 0x00004a2a, 0x000bae55, 0x000ffa03 },
2168         { 104, 0x00002ccc, 0x00004a2e, 0x000bae55, 0x000ffa0b },
2169         { 108, 0x00002ccc, 0x00004a32, 0x000bae55, 0x000ffa13 },
2170         { 112, 0x00002ccc, 0x00004a36, 0x000bae55, 0x000ffa1b },
2171         { 116, 0x00002ccc, 0x00004a3a, 0x000bbe55, 0x000ffa23 },
2172         { 120, 0x00002ccc, 0x00004a82, 0x000bbe55, 0x000ffa03 },
2173         { 124, 0x00002ccc, 0x00004a86, 0x000bbe55, 0x000ffa0b },
2174         { 128, 0x00002ccc, 0x00004a8a, 0x000bbe55, 0x000ffa13 },
2175         { 132, 0x00002ccc, 0x00004a8e, 0x000bbe55, 0x000ffa1b },
2176         { 136, 0x00002ccc, 0x00004a92, 0x000bbe55, 0x000ffa23 },
2177
2178         /* 802.11 UNII */
2179         { 140, 0x00002ccc, 0x00004a9a, 0x000bbe55, 0x000ffa03 },
2180         { 149, 0x00002ccc, 0x00004aa2, 0x000bbe55, 0x000ffa1f },
2181         { 153, 0x00002ccc, 0x00004aa6, 0x000bbe55, 0x000ffa27 },
2182         { 157, 0x00002ccc, 0x00004aae, 0x000bbe55, 0x000ffa07 },
2183         { 161, 0x00002ccc, 0x00004ab2, 0x000bbe55, 0x000ffa0f },
2184         { 165, 0x00002ccc, 0x00004ab6, 0x000bbe55, 0x000ffa17 },
2185
2186         /* MMAC(Japan)J52 ch 34,38,42,46 */
2187         { 34, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000ffa0b },
2188         { 38, 0x00002ccc, 0x0000499e, 0x0009be55, 0x000ffa13 },
2189         { 42, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000ffa1b },
2190         { 46, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000ffa23 },
2191 };
2192
2193 /*
2194  * RF value list for RF5225 & RF5325
2195  * Supports: 2.4 GHz & 5.2 GHz, rf_sequence enabled
2196  */
2197 static const struct rf_channel rf_vals_seq[] = {
2198         { 1,  0x00002ccc, 0x00004786, 0x00068455, 0x000ffa0b },
2199         { 2,  0x00002ccc, 0x00004786, 0x00068455, 0x000ffa1f },
2200         { 3,  0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa0b },
2201         { 4,  0x00002ccc, 0x0000478a, 0x00068455, 0x000ffa1f },
2202         { 5,  0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa0b },
2203         { 6,  0x00002ccc, 0x0000478e, 0x00068455, 0x000ffa1f },
2204         { 7,  0x00002ccc, 0x00004792, 0x00068455, 0x000ffa0b },
2205         { 8,  0x00002ccc, 0x00004792, 0x00068455, 0x000ffa1f },
2206         { 9,  0x00002ccc, 0x00004796, 0x00068455, 0x000ffa0b },
2207         { 10, 0x00002ccc, 0x00004796, 0x00068455, 0x000ffa1f },
2208         { 11, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa0b },
2209         { 12, 0x00002ccc, 0x0000479a, 0x00068455, 0x000ffa1f },
2210         { 13, 0x00002ccc, 0x0000479e, 0x00068455, 0x000ffa0b },
2211         { 14, 0x00002ccc, 0x000047a2, 0x00068455, 0x000ffa13 },
2212
2213         /* 802.11 UNI / HyperLan 2 */
2214         { 36, 0x00002cd4, 0x0004481a, 0x00098455, 0x000c0a03 },
2215         { 40, 0x00002cd0, 0x00044682, 0x00098455, 0x000c0a03 },
2216         { 44, 0x00002cd0, 0x00044686, 0x00098455, 0x000c0a1b },
2217         { 48, 0x00002cd0, 0x0004468e, 0x00098655, 0x000c0a0b },
2218         { 52, 0x00002cd0, 0x00044692, 0x00098855, 0x000c0a23 },
2219         { 56, 0x00002cd0, 0x0004469a, 0x00098c55, 0x000c0a13 },
2220         { 60, 0x00002cd0, 0x000446a2, 0x00098e55, 0x000c0a03 },
2221         { 64, 0x00002cd0, 0x000446a6, 0x00099255, 0x000c0a1b },
2222
2223         /* 802.11 HyperLan 2 */
2224         { 100, 0x00002cd4, 0x0004489a, 0x000b9855, 0x000c0a03 },
2225         { 104, 0x00002cd4, 0x000448a2, 0x000b9855, 0x000c0a03 },
2226         { 108, 0x00002cd4, 0x000448aa, 0x000b9855, 0x000c0a03 },
2227         { 112, 0x00002cd4, 0x000448b2, 0x000b9a55, 0x000c0a03 },
2228         { 116, 0x00002cd4, 0x000448ba, 0x000b9a55, 0x000c0a03 },
2229         { 120, 0x00002cd0, 0x00044702, 0x000b9a55, 0x000c0a03 },
2230         { 124, 0x00002cd0, 0x00044706, 0x000b9a55, 0x000c0a1b },
2231         { 128, 0x00002cd0, 0x0004470e, 0x000b9c55, 0x000c0a0b },
2232         { 132, 0x00002cd0, 0x00044712, 0x000b9c55, 0x000c0a23 },
2233         { 136, 0x00002cd0, 0x0004471a, 0x000b9e55, 0x000c0a13 },
2234
2235         /* 802.11 UNII */
2236         { 140, 0x00002cd0, 0x00044722, 0x000b9e55, 0x000c0a03 },
2237         { 149, 0x00002cd0, 0x0004472e, 0x000ba255, 0x000c0a1b },
2238         { 153, 0x00002cd0, 0x00044736, 0x000ba255, 0x000c0a0b },
2239         { 157, 0x00002cd4, 0x0004490a, 0x000ba255, 0x000c0a17 },
2240         { 161, 0x00002cd4, 0x00044912, 0x000ba255, 0x000c0a17 },
2241         { 165, 0x00002cd4, 0x0004491a, 0x000ba255, 0x000c0a17 },
2242
2243         /* MMAC(Japan)J52 ch 34,38,42,46 */
2244         { 34, 0x00002ccc, 0x0000499a, 0x0009be55, 0x000c0a0b },
2245         { 38, 0x00002ccc, 0x0000499e, 0x0009be55, 0x000c0a13 },
2246         { 42, 0x00002ccc, 0x000049a2, 0x0009be55, 0x000c0a1b },
2247         { 46, 0x00002ccc, 0x000049a6, 0x0009be55, 0x000c0a23 },
2248 };
2249
2250 static void rt61pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
2251 {
2252         struct hw_mode_spec *spec = &rt2x00dev->spec;
2253         u8 *txpower;
2254         unsigned int i;
2255
2256         /*
2257          * Initialize all hw fields.
2258          */
2259         rt2x00dev->hw->flags =
2260             IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
2261             IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
2262         rt2x00dev->hw->extra_tx_headroom = 0;
2263         rt2x00dev->hw->max_signal = MAX_SIGNAL;
2264         rt2x00dev->hw->max_rssi = MAX_RX_SSI;
2265         rt2x00dev->hw->queues = 4;
2266
2267         SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_pci(rt2x00dev)->dev);
2268         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
2269                                 rt2x00_eeprom_addr(rt2x00dev,
2270                                                    EEPROM_MAC_ADDR_0));
2271
2272         /*
2273          * Convert tx_power array in eeprom.
2274          */
2275         txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_G_START);
2276         for (i = 0; i < 14; i++)
2277                 txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
2278
2279         /*
2280          * Initialize hw_mode information.
2281          */
2282         spec->supported_bands = SUPPORT_BAND_2GHZ;
2283         spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
2284         spec->tx_power_a = NULL;
2285         spec->tx_power_bg = txpower;
2286         spec->tx_power_default = DEFAULT_TXPOWER;
2287
2288         if (!test_bit(CONFIG_RF_SEQUENCE, &rt2x00dev->flags)) {
2289                 spec->num_channels = 14;
2290                 spec->channels = rf_vals_noseq;
2291         } else {
2292                 spec->num_channels = 14;
2293                 spec->channels = rf_vals_seq;
2294         }
2295
2296         if (rt2x00_rf(&rt2x00dev->chip, RF5225) ||
2297             rt2x00_rf(&rt2x00dev->chip, RF5325)) {
2298                 spec->supported_bands |= SUPPORT_BAND_5GHZ;
2299                 spec->num_channels = ARRAY_SIZE(rf_vals_seq);
2300
2301                 txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
2302                 for (i = 0; i < 14; i++)
2303                         txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
2304
2305                 spec->tx_power_a = txpower;
2306         }
2307 }
2308
2309 static int rt61pci_probe_hw(struct rt2x00_dev *rt2x00dev)
2310 {
2311         int retval;
2312
2313         /*
2314          * Allocate eeprom data.
2315          */
2316         retval = rt61pci_validate_eeprom(rt2x00dev);
2317         if (retval)
2318                 return retval;
2319
2320         retval = rt61pci_init_eeprom(rt2x00dev);
2321         if (retval)
2322                 return retval;
2323
2324         /*
2325          * Initialize hw specifications.
2326          */
2327         rt61pci_probe_hw_mode(rt2x00dev);
2328
2329         /*
2330          * This device requires firmware.
2331          */
2332         __set_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags);
2333
2334         /*
2335          * Set the rssi offset.
2336          */
2337         rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
2338
2339         return 0;
2340 }
2341
2342 /*
2343  * IEEE80211 stack callback functions.
2344  */
2345 static int rt61pci_set_retry_limit(struct ieee80211_hw *hw,
2346                                    u32 short_retry, u32 long_retry)
2347 {
2348         struct rt2x00_dev *rt2x00dev = hw->priv;
2349         u32 reg;
2350
2351         rt2x00pci_register_read(rt2x00dev, TXRX_CSR4, &reg);
2352         rt2x00_set_field32(&reg, TXRX_CSR4_LONG_RETRY_LIMIT, long_retry);
2353         rt2x00_set_field32(&reg, TXRX_CSR4_SHORT_RETRY_LIMIT, short_retry);
2354         rt2x00pci_register_write(rt2x00dev, TXRX_CSR4, reg);
2355
2356         return 0;
2357 }
2358
2359 static u64 rt61pci_get_tsf(struct ieee80211_hw *hw)
2360 {
2361         struct rt2x00_dev *rt2x00dev = hw->priv;
2362         u64 tsf;
2363         u32 reg;
2364
2365         rt2x00pci_register_read(rt2x00dev, TXRX_CSR13, &reg);
2366         tsf = (u64) rt2x00_get_field32(reg, TXRX_CSR13_HIGH_TSFTIMER) << 32;
2367         rt2x00pci_register_read(rt2x00dev, TXRX_CSR12, &reg);
2368         tsf |= rt2x00_get_field32(reg, TXRX_CSR12_LOW_TSFTIMER);
2369
2370         return tsf;
2371 }
2372
2373 static int rt61pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
2374                           struct ieee80211_tx_control *control)
2375 {
2376         struct rt2x00_dev *rt2x00dev = hw->priv;
2377         struct rt2x00_intf *intf = vif_to_intf(control->vif);
2378         struct queue_entry_priv_pci_tx *priv_tx;
2379         struct skb_frame_desc *skbdesc;
2380         unsigned int beacon_base;
2381         u32 reg;
2382
2383         if (unlikely(!intf->beacon))
2384                 return -ENOBUFS;
2385
2386         priv_tx = intf->beacon->priv_data;
2387         memset(priv_tx->desc, 0, intf->beacon->queue->desc_size);
2388
2389         /*
2390          * Fill in skb descriptor
2391          */
2392         skbdesc = get_skb_frame_desc(skb);
2393         memset(skbdesc, 0, sizeof(*skbdesc));
2394         skbdesc->flags |= FRAME_DESC_DRIVER_GENERATED;
2395         skbdesc->data = skb->data;
2396         skbdesc->data_len = skb->len;
2397         skbdesc->desc = priv_tx->desc;
2398         skbdesc->desc_len = intf->beacon->queue->desc_size;
2399         skbdesc->entry = intf->beacon;
2400
2401         /*
2402          * Disable beaconing while we are reloading the beacon data,
2403          * otherwise we might be sending out invalid data.
2404          */
2405         rt2x00pci_register_read(rt2x00dev, TXRX_CSR9, &reg);
2406         rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 0);
2407         rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 0);
2408         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
2409         rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
2410
2411         /*
2412          * mac80211 doesn't provide the control->queue variable
2413          * for beacons. Set our own queue identification so
2414          * it can be used during descriptor initialization.
2415          */
2416         control->queue = RT2X00_BCN_QUEUE_BEACON;
2417         rt2x00lib_write_tx_desc(rt2x00dev, skb, control);
2418
2419         /*
2420          * Write entire beacon with descriptor to register,
2421          * and kick the beacon generator.
2422          */
2423         beacon_base = HW_BEACON_OFFSET(intf->beacon->entry_idx);
2424         rt2x00pci_register_multiwrite(rt2x00dev, beacon_base,
2425                                       skbdesc->desc, skbdesc->desc_len);
2426         rt2x00pci_register_multiwrite(rt2x00dev,
2427                                       beacon_base + skbdesc->desc_len,
2428                                       skbdesc->data, skbdesc->data_len);
2429         rt61pci_kick_tx_queue(rt2x00dev, control->queue);
2430
2431         return 0;
2432 }
2433
2434 static const struct ieee80211_ops rt61pci_mac80211_ops = {
2435         .tx                     = rt2x00mac_tx,
2436         .start                  = rt2x00mac_start,
2437         .stop                   = rt2x00mac_stop,
2438         .add_interface          = rt2x00mac_add_interface,
2439         .remove_interface       = rt2x00mac_remove_interface,
2440         .config                 = rt2x00mac_config,
2441         .config_interface       = rt2x00mac_config_interface,
2442         .configure_filter       = rt2x00mac_configure_filter,
2443         .get_stats              = rt2x00mac_get_stats,
2444         .set_retry_limit        = rt61pci_set_retry_limit,
2445         .bss_info_changed       = rt2x00mac_bss_info_changed,
2446         .conf_tx                = rt2x00mac_conf_tx,
2447         .get_tx_stats           = rt2x00mac_get_tx_stats,
2448         .get_tsf                = rt61pci_get_tsf,
2449         .beacon_update          = rt61pci_beacon_update,
2450 };
2451
2452 static const struct rt2x00lib_ops rt61pci_rt2x00_ops = {
2453         .irq_handler            = rt61pci_interrupt,
2454         .probe_hw               = rt61pci_probe_hw,
2455         .get_firmware_name      = rt61pci_get_firmware_name,
2456         .get_firmware_crc       = rt61pci_get_firmware_crc,
2457         .load_firmware          = rt61pci_load_firmware,
2458         .initialize             = rt2x00pci_initialize,
2459         .uninitialize           = rt2x00pci_uninitialize,
2460         .init_rxentry           = rt61pci_init_rxentry,
2461         .init_txentry           = rt61pci_init_txentry,
2462         .set_device_state       = rt61pci_set_device_state,
2463         .rfkill_poll            = rt61pci_rfkill_poll,
2464         .link_stats             = rt61pci_link_stats,
2465         .reset_tuner            = rt61pci_reset_tuner,
2466         .link_tuner             = rt61pci_link_tuner,
2467         .write_tx_desc          = rt61pci_write_tx_desc,
2468         .write_tx_data          = rt2x00pci_write_tx_data,
2469         .kick_tx_queue          = rt61pci_kick_tx_queue,
2470         .fill_rxdone            = rt61pci_fill_rxdone,
2471         .config_filter          = rt61pci_config_filter,
2472         .config_intf            = rt61pci_config_intf,
2473         .config_erp             = rt61pci_config_erp,
2474         .config                 = rt61pci_config,
2475 };
2476
2477 static const struct data_queue_desc rt61pci_queue_rx = {
2478         .entry_num              = RX_ENTRIES,
2479         .data_size              = DATA_FRAME_SIZE,
2480         .desc_size              = RXD_DESC_SIZE,
2481         .priv_size              = sizeof(struct queue_entry_priv_pci_rx),
2482 };
2483
2484 static const struct data_queue_desc rt61pci_queue_tx = {
2485         .entry_num              = TX_ENTRIES,
2486         .data_size              = DATA_FRAME_SIZE,
2487         .desc_size              = TXD_DESC_SIZE,
2488         .priv_size              = sizeof(struct queue_entry_priv_pci_tx),
2489 };
2490
2491 static const struct data_queue_desc rt61pci_queue_bcn = {
2492         .entry_num              = 4 * BEACON_ENTRIES,
2493         .data_size              = 0, /* No DMA required for beacons */
2494         .desc_size              = TXINFO_SIZE,
2495         .priv_size              = sizeof(struct queue_entry_priv_pci_tx),
2496 };
2497
2498 static const struct rt2x00_ops rt61pci_ops = {
2499         .name           = KBUILD_MODNAME,
2500         .max_sta_intf   = 1,
2501         .max_ap_intf    = 4,
2502         .eeprom_size    = EEPROM_SIZE,
2503         .rf_size        = RF_SIZE,
2504         .rx             = &rt61pci_queue_rx,
2505         .tx             = &rt61pci_queue_tx,
2506         .bcn            = &rt61pci_queue_bcn,
2507         .lib            = &rt61pci_rt2x00_ops,
2508         .hw             = &rt61pci_mac80211_ops,
2509 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
2510         .debugfs        = &rt61pci_rt2x00debug,
2511 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
2512 };
2513
2514 /*
2515  * RT61pci module information.
2516  */
2517 static struct pci_device_id rt61pci_device_table[] = {
2518         /* RT2561s */
2519         { PCI_DEVICE(0x1814, 0x0301), PCI_DEVICE_DATA(&rt61pci_ops) },
2520         /* RT2561 v2 */
2521         { PCI_DEVICE(0x1814, 0x0302), PCI_DEVICE_DATA(&rt61pci_ops) },
2522         /* RT2661 */
2523         { PCI_DEVICE(0x1814, 0x0401), PCI_DEVICE_DATA(&rt61pci_ops) },
2524         { 0, }
2525 };
2526
2527 MODULE_AUTHOR(DRV_PROJECT);
2528 MODULE_VERSION(DRV_VERSION);
2529 MODULE_DESCRIPTION("Ralink RT61 PCI & PCMCIA Wireless LAN driver.");
2530 MODULE_SUPPORTED_DEVICE("Ralink RT2561, RT2561s & RT2661 "
2531                         "PCI & PCMCIA chipset based cards");
2532 MODULE_DEVICE_TABLE(pci, rt61pci_device_table);
2533 MODULE_FIRMWARE(FIRMWARE_RT2561);
2534 MODULE_FIRMWARE(FIRMWARE_RT2561s);
2535 MODULE_FIRMWARE(FIRMWARE_RT2661);
2536 MODULE_LICENSE("GPL");
2537
2538 static struct pci_driver rt61pci_driver = {
2539         .name           = KBUILD_MODNAME,
2540         .id_table       = rt61pci_device_table,
2541         .probe          = rt2x00pci_probe,
2542         .remove         = __devexit_p(rt2x00pci_remove),
2543         .suspend        = rt2x00pci_suspend,
2544         .resume         = rt2x00pci_resume,
2545 };
2546
2547 static int __init rt61pci_init(void)
2548 {
2549         return pci_register_driver(&rt61pci_driver);
2550 }
2551
2552 static void __exit rt61pci_exit(void)
2553 {
2554         pci_unregister_driver(&rt61pci_driver);
2555 }
2556
2557 module_init(rt61pci_init);
2558 module_exit(rt61pci_exit);