SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/net/wireless/ath/ath9k/hw.c

   1 /*
   2  * Copyright (c) 2008-2009 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include <linux/io.h>
  18 #include <asm/unaligned.h>
  19 #include <linux/pci.h>
  20
  21 #include "ath9k.h"
  22 #include "initvals.h"
  23
  24 static int btcoex_enable;
  25 module_param(btcoex_enable, bool, 0);
  26 MODULE_PARM_DESC(btcoex_enable, "Enable Bluetooth coexistence support");
  27
  28 #define ATH9K_CLOCK_RATE_CCK            22
  29 #define ATH9K_CLOCK_RATE_5GHZ_OFDM      40
  30 #define ATH9K_CLOCK_RATE_2GHZ_OFDM      44
  31
  32 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
  33 static void ath9k_hw_set_regs(struct ath_hw *ah, struct ath9k_channel *chan,
  34                               enum ath9k_ht_macmode macmode);
  35 static u32 ath9k_hw_ini_fixup(struct ath_hw *ah,
  36                               struct ar5416_eeprom_def *pEepData,
  37                               u32 reg, u32 value);
  38 static void ath9k_hw_9280_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan);
  39 static void ath9k_hw_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan);
  40
  41 /********************/
  42 /* Helper Functions */
  43 /********************/
  44
  45 static u32 ath9k_hw_mac_usec(struct ath_hw *ah, u32 clks)
  46 {
  47         struct ieee80211_conf *conf = &ah->ah_sc->hw->conf;
  48
  49         if (!ah->curchan) /* should really check for CCK instead */
  50                 return clks / ATH9K_CLOCK_RATE_CCK;
  51         if (conf->channel->band == IEEE80211_BAND_2GHZ)
  52                 return clks / ATH9K_CLOCK_RATE_2GHZ_OFDM;
  53
  54         return clks / ATH9K_CLOCK_RATE_5GHZ_OFDM;
  55 }
  56
  57 static u32 ath9k_hw_mac_to_usec(struct ath_hw *ah, u32 clks)
  58 {
  59         struct ieee80211_conf *conf = &ah->ah_sc->hw->conf;
  60
  61         if (conf_is_ht40(conf))
  62                 return ath9k_hw_mac_usec(ah, clks) / 2;
  63         else
  64                 return ath9k_hw_mac_usec(ah, clks);
  65 }
  66
  67 static u32 ath9k_hw_mac_clks(struct ath_hw *ah, u32 usecs)
  68 {
  69         struct ieee80211_conf *conf = &ah->ah_sc->hw->conf;
  70
  71         if (!ah->curchan) /* should really check for CCK instead */
  72                 return usecs *ATH9K_CLOCK_RATE_CCK;
  73         if (conf->channel->band == IEEE80211_BAND_2GHZ)
  74                 return usecs *ATH9K_CLOCK_RATE_2GHZ_OFDM;
  75         return usecs *ATH9K_CLOCK_RATE_5GHZ_OFDM;
  76 }
  77
  78 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
  79 {
  80         struct ieee80211_conf *conf = &ah->ah_sc->hw->conf;
  81
  82         if (conf_is_ht40(conf))
  83                 return ath9k_hw_mac_clks(ah, usecs) * 2;
  84         else
  85                 return ath9k_hw_mac_clks(ah, usecs);
  86 }
  87
  88 /*
  89  * Read and write, they both share the same lock. We do this to serialize
  90  * reads and writes on Atheros 802.11n PCI devices only. This is required
  91  * as the FIFO on these devices can only accept sanely 2 requests. After
  92  * that the device goes bananas. Serializing the reads/writes prevents this
  93  * from happening.
  94  */
  95
  96 void ath9k_iowrite32(struct ath_hw *ah, u32 reg_offset, u32 val)
  97 {
  98         if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
  99                 unsigned long flags;
 100                 spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
 101                 iowrite32(val, ah->ah_sc->mem + reg_offset);
 102                 spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
 103         } else
 104                 iowrite32(val, ah->ah_sc->mem + reg_offset);
 105 }
 106
 107 unsigned int ath9k_ioread32(struct ath_hw *ah, u32 reg_offset)
 108 {
 109         u32 val;
 110         if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
 111                 unsigned long flags;
 112                 spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
 113                 val = ioread32(ah->ah_sc->mem + reg_offset);
 114                 spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
 115         } else
 116                 val = ioread32(ah->ah_sc->mem + reg_offset);
 117         return val;
 118 }
 119
 120 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
 121 {
 122         int i;
 123
 124         BUG_ON(timeout < AH_TIME_QUANTUM);
 125
 126         for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
 127                 if ((REG_READ(ah, reg) & mask) == val)
 128                         return true;
 129
 130                 udelay(AH_TIME_QUANTUM);
 131         }
 132
 133         DPRINTF(ah->ah_sc, ATH_DBG_ANY,
 134                 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
 135                 timeout, reg, REG_READ(ah, reg), mask, val);
 136
 137         return false;
 138 }
 139
 140 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
 141 {
 142         u32 retval;
 143         int i;
 144
 145         for (i = 0, retval = 0; i < n; i++) {
 146                 retval = (retval << 1) | (val & 1);
 147                 val >>= 1;
 148         }
 149         return retval;
 150 }
 151
 152 bool ath9k_get_channel_edges(struct ath_hw *ah,
 153                              u16 flags, u16 *low,
 154                              u16 *high)
 155 {
 156         struct ath9k_hw_capabilities *pCap = &ah->caps;
 157
 158         if (flags & CHANNEL_5GHZ) {
 159                 *low = pCap->low_5ghz_chan;
 160                 *high = pCap->high_5ghz_chan;
 161                 return true;
 162         }
 163         if ((flags & CHANNEL_2GHZ)) {
 164                 *low = pCap->low_2ghz_chan;
 165                 *high = pCap->high_2ghz_chan;
 166                 return true;
 167         }
 168         return false;
 169 }
 170
 171 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
 172                            const struct ath_rate_table *rates,
 173                            u32 frameLen, u16 rateix,
 174                            bool shortPreamble)
 175 {
 176         u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
 177         u32 kbps;
 178
 179         kbps = rates->info[rateix].ratekbps;
 180
 181         if (kbps == 0)
 182                 return 0;
 183
 184         switch (rates->info[rateix].phy) {
 185         case WLAN_RC_PHY_CCK:
 186                 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
 187                 if (shortPreamble && rates->info[rateix].short_preamble)
 188                         phyTime >>= 1;
 189                 numBits = frameLen << 3;
 190                 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
 191                 break;
 192         case WLAN_RC_PHY_OFDM:
 193                 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
 194                         bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
 195                         numBits = OFDM_PLCP_BITS + (frameLen << 3);
 196                         numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
 197                         txTime = OFDM_SIFS_TIME_QUARTER
 198                                 + OFDM_PREAMBLE_TIME_QUARTER
 199                                 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
 200                 } else if (ah->curchan &&
 201                            IS_CHAN_HALF_RATE(ah->curchan)) {
 202                         bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
 203                         numBits = OFDM_PLCP_BITS + (frameLen << 3);
 204                         numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
 205                         txTime = OFDM_SIFS_TIME_HALF +
 206                                 OFDM_PREAMBLE_TIME_HALF
 207                                 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
 208                 } else {
 209                         bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
 210                         numBits = OFDM_PLCP_BITS + (frameLen << 3);
 211                         numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
 212                         txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
 213                                 + (numSymbols * OFDM_SYMBOL_TIME);
 214                 }
 215                 break;
 216         default:
 217                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 218                         "Unknown phy %u (rate ix %u)\n",
 219                         rates->info[rateix].phy, rateix);
 220                 txTime = 0;
 221                 break;
 222         }
 223
 224         return txTime;
 225 }
 226
 227 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
 228                                   struct ath9k_channel *chan,
 229                                   struct chan_centers *centers)
 230 {
 231         int8_t extoff;
 232
 233         if (!IS_CHAN_HT40(chan)) {
 234                 centers->ctl_center = centers->ext_center =
 235                         centers->synth_center = chan->channel;
 236                 return;
 237         }
 238
 239         if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
 240             (chan->chanmode == CHANNEL_G_HT40PLUS)) {
 241                 centers->synth_center =
 242                         chan->channel + HT40_CHANNEL_CENTER_SHIFT;
 243                 extoff = 1;
 244         } else {
 245                 centers->synth_center =
 246                         chan->channel - HT40_CHANNEL_CENTER_SHIFT;
 247                 extoff = -1;
 248         }
 249
 250         centers->ctl_center =
 251                 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
 252         centers->ext_center =
 253                 centers->synth_center + (extoff *
 254                          ((ah->extprotspacing == ATH9K_HT_EXTPROTSPACING_20) ?
 255                           HT40_CHANNEL_CENTER_SHIFT : 15));
 256 }
 257
 258 /******************/
 259 /* Chip Revisions */
 260 /******************/
 261
 262 static void ath9k_hw_read_revisions(struct ath_hw *ah)
 263 {
 264         u32 val;
 265
 266         val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
 267
 268         if (val == 0xFF) {
 269                 val = REG_READ(ah, AR_SREV);
 270                 ah->hw_version.macVersion =
 271                         (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
 272                 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
 273                 ah->is_pciexpress = (val & AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
 274         } else {
 275                 if (!AR_SREV_9100(ah))
 276                         ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
 277
 278                 ah->hw_version.macRev = val & AR_SREV_REVISION;
 279
 280                 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
 281                         ah->is_pciexpress = true;
 282         }
 283 }
 284
 285 static int ath9k_hw_get_radiorev(struct ath_hw *ah)
 286 {
 287         u32 val;
 288         int i;
 289
 290         REG_WRITE(ah, AR_PHY(0x36), 0x00007058);
 291
 292         for (i = 0; i < 8; i++)
 293                 REG_WRITE(ah, AR_PHY(0x20), 0x00010000);
 294         val = (REG_READ(ah, AR_PHY(256)) >> 24) & 0xff;
 295         val = ((val & 0xf0) >> 4) | ((val & 0x0f) << 4);
 296
 297         return ath9k_hw_reverse_bits(val, 8);
 298 }
 299
 300 /************************************/
 301 /* HW Attach, Detach, Init Routines */
 302 /************************************/
 303
 304 static void ath9k_hw_disablepcie(struct ath_hw *ah)
 305 {
 306         if (AR_SREV_9100(ah))
 307                 return;
 308
 309         REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
 310         REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
 311         REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
 312         REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
 313         REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
 314         REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
 315         REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
 316         REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
 317         REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
 318
 319         REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
 320 }
 321
 322 static bool ath9k_hw_chip_test(struct ath_hw *ah)
 323 {
 324         u32 regAddr[2] = { AR_STA_ID0, AR_PHY_BASE + (8 << 2) };
 325         u32 regHold[2];
 326         u32 patternData[4] = { 0x55555555,
 327                                0xaaaaaaaa,
 328                                0x66666666,
 329                                0x99999999 };
 330         int i, j;
 331
 332         for (i = 0; i < 2; i++) {
 333                 u32 addr = regAddr[i];
 334                 u32 wrData, rdData;
 335
 336                 regHold[i] = REG_READ(ah, addr);
 337                 for (j = 0; j < 0x100; j++) {
 338                         wrData = (j << 16) | j;
 339                         REG_WRITE(ah, addr, wrData);
 340                         rdData = REG_READ(ah, addr);
 341                         if (rdData != wrData) {
 342                                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 343                                         "address test failed "
 344                                         "addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
 345                                         addr, wrData, rdData);
 346                                 return false;
 347                         }
 348                 }
 349                 for (j = 0; j < 4; j++) {
 350                         wrData = patternData[j];
 351                         REG_WRITE(ah, addr, wrData);
 352                         rdData = REG_READ(ah, addr);
 353                         if (wrData != rdData) {
 354                                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 355                                         "address test failed "
 356                                         "addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
 357                                         addr, wrData, rdData);
 358                                 return false;
 359                         }
 360                 }
 361                 REG_WRITE(ah, regAddr[i], regHold[i]);
 362         }
 363         udelay(100);
 364
 365         return true;
 366 }
 367
 368 static const char *ath9k_hw_devname(u16 devid)
 369 {
 370         switch (devid) {
 371         case AR5416_DEVID_PCI:
 372                 return "Atheros 5416";
 373         case AR5416_DEVID_PCIE:
 374                 return "Atheros 5418";
 375         case AR9160_DEVID_PCI:
 376                 return "Atheros 9160";
 377         case AR5416_AR9100_DEVID:
 378                 return "Atheros 9100";
 379         case AR9280_DEVID_PCI:
 380         case AR9280_DEVID_PCIE:
 381                 return "Atheros 9280";
 382         case AR9285_DEVID_PCIE:
 383                 return "Atheros 9285";
 384         case AR5416_DEVID_AR9287_PCI:
 385         case AR5416_DEVID_AR9287_PCIE:
 386                 return "Atheros 9287";
 387         }
 388
 389         return NULL;
 390 }
 391
 392 static void ath9k_hw_init_config(struct ath_hw *ah)
 393 {
 394         int i;
 395
 396         ah->config.dma_beacon_response_time = 2;
 397         ah->config.sw_beacon_response_time = 10;
 398         ah->config.additional_swba_backoff = 0;
 399         ah->config.ack_6mb = 0x0;
 400         ah->config.cwm_ignore_extcca = 0;
 401         ah->config.pcie_powersave_enable = 0;
 402         ah->config.pcie_clock_req = 0;
 403         ah->config.pcie_waen = 0;
 404         ah->config.analog_shiftreg = 1;
 405         ah->config.ht_enable = 1;
 406         ah->config.ofdm_trig_low = 200;
 407         ah->config.ofdm_trig_high = 500;
 408         ah->config.cck_trig_high = 200;
 409         ah->config.cck_trig_low = 100;
 410         ah->config.enable_ani = 1;
 411         ah->config.diversity_control = ATH9K_ANT_VARIABLE;
 412         ah->config.antenna_switch_swap = 0;
 413
 414         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
 415                 ah->config.spurchans[i][0] = AR_NO_SPUR;
 416                 ah->config.spurchans[i][1] = AR_NO_SPUR;
 417         }
 418
 419         ah->config.intr_mitigation = true;
 420
 421         /*
 422          * We need this for PCI devices only (Cardbus, PCI, miniPCI)
 423          * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
 424          * This means we use it for all AR5416 devices, and the few
 425          * minor PCI AR9280 devices out there.
 426          *
 427          * Serialization is required because these devices do not handle
 428          * well the case of two concurrent reads/writes due to the latency
 429          * involved. During one read/write another read/write can be issued
 430          * on another CPU while the previous read/write may still be working
 431          * on our hardware, if we hit this case the hardware poops in a loop.
 432          * We prevent this by serializing reads and writes.
 433          *
 434          * This issue is not present on PCI-Express devices or pre-AR5416
 435          * devices (legacy, 802.11abg).
 436          */
 437         if (num_possible_cpus() > 1)
 438                 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
 439 }
 440
 441 static void ath9k_hw_init_defaults(struct ath_hw *ah)
 442 {
 443         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
 444
 445         regulatory->country_code = CTRY_DEFAULT;
 446         regulatory->power_limit = MAX_RATE_POWER;
 447         regulatory->tp_scale = ATH9K_TP_SCALE_MAX;
 448
 449         ah->hw_version.magic = AR5416_MAGIC;
 450         ah->hw_version.subvendorid = 0;
 451
 452         ah->ah_flags = 0;
 453         if (ah->hw_version.devid == AR5416_AR9100_DEVID)
 454                 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
 455         if (!AR_SREV_9100(ah))
 456                 ah->ah_flags = AH_USE_EEPROM;
 457
 458         ah->atim_window = 0;
 459         ah->sta_id1_defaults = AR_STA_ID1_CRPT_MIC_ENABLE;
 460         ah->beacon_interval = 100;
 461         ah->enable_32kHz_clock = DONT_USE_32KHZ;
 462         ah->slottime = (u32) -1;
 463         ah->acktimeout = (u32) -1;
 464         ah->ctstimeout = (u32) -1;
 465         ah->globaltxtimeout = (u32) -1;
 466
 467         ah->gbeacon_rate = 0;
 468
 469         ah->power_mode = ATH9K_PM_UNDEFINED;
 470 }
 471
 472 static int ath9k_hw_rfattach(struct ath_hw *ah)
 473 {
 474         bool rfStatus = false;
 475         int ecode = 0;
 476
 477         rfStatus = ath9k_hw_init_rf(ah, &ecode);
 478         if (!rfStatus) {
 479                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 480                         "RF setup failed, status: %u\n", ecode);
 481                 return ecode;
 482         }
 483
 484         return 0;
 485 }
 486
 487 static int ath9k_hw_rf_claim(struct ath_hw *ah)
 488 {
 489         u32 val;
 490
 491         REG_WRITE(ah, AR_PHY(0), 0x00000007);
 492
 493         val = ath9k_hw_get_radiorev(ah);
 494         switch (val & AR_RADIO_SREV_MAJOR) {
 495         case 0:
 496                 val = AR_RAD5133_SREV_MAJOR;
 497                 break;
 498         case AR_RAD5133_SREV_MAJOR:
 499         case AR_RAD5122_SREV_MAJOR:
 500         case AR_RAD2133_SREV_MAJOR:
 501         case AR_RAD2122_SREV_MAJOR:
 502                 break;
 503         default:
 504                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 505                         "Radio Chip Rev 0x%02X not supported\n",
 506                         val & AR_RADIO_SREV_MAJOR);
 507                 return -EOPNOTSUPP;
 508         }
 509
 510         ah->hw_version.analog5GhzRev = val;
 511
 512         return 0;
 513 }
 514
 515 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
 516 {
 517         u32 sum;
 518         int i;
 519         u16 eeval;
 520
 521         sum = 0;
 522         for (i = 0; i < 3; i++) {
 523                 eeval = ah->eep_ops->get_eeprom(ah, AR_EEPROM_MAC(i));
 524                 sum += eeval;
 525                 ah->macaddr[2 * i] = eeval >> 8;
 526                 ah->macaddr[2 * i + 1] = eeval & 0xff;
 527         }
 528         if (sum == 0 || sum == 0xffff * 3)
 529                 return -EADDRNOTAVAIL;
 530
 531         return 0;
 532 }
 533
 534 static void ath9k_hw_init_rxgain_ini(struct ath_hw *ah)
 535 {
 536         u32 rxgain_type;
 537
 538         if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >= AR5416_EEP_MINOR_VER_17) {
 539                 rxgain_type = ah->eep_ops->get_eeprom(ah, EEP_RXGAIN_TYPE);
 540
 541                 if (rxgain_type == AR5416_EEP_RXGAIN_13DB_BACKOFF)
 542                         INIT_INI_ARRAY(&ah->iniModesRxGain,
 543                         ar9280Modes_backoff_13db_rxgain_9280_2,
 544                         ARRAY_SIZE(ar9280Modes_backoff_13db_rxgain_9280_2), 6);
 545                 else if (rxgain_type == AR5416_EEP_RXGAIN_23DB_BACKOFF)
 546                         INIT_INI_ARRAY(&ah->iniModesRxGain,
 547                         ar9280Modes_backoff_23db_rxgain_9280_2,
 548                         ARRAY_SIZE(ar9280Modes_backoff_23db_rxgain_9280_2), 6);
 549                 else
 550                         INIT_INI_ARRAY(&ah->iniModesRxGain,
 551                         ar9280Modes_original_rxgain_9280_2,
 552                         ARRAY_SIZE(ar9280Modes_original_rxgain_9280_2), 6);
 553         } else {
 554                 INIT_INI_ARRAY(&ah->iniModesRxGain,
 555                         ar9280Modes_original_rxgain_9280_2,
 556                         ARRAY_SIZE(ar9280Modes_original_rxgain_9280_2), 6);
 557         }
 558 }
 559
 560 static void ath9k_hw_init_txgain_ini(struct ath_hw *ah)
 561 {
 562         u32 txgain_type;
 563
 564         if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >= AR5416_EEP_MINOR_VER_19) {
 565                 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);
 566
 567                 if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER)
 568                         INIT_INI_ARRAY(&ah->iniModesTxGain,
 569                         ar9280Modes_high_power_tx_gain_9280_2,
 570                         ARRAY_SIZE(ar9280Modes_high_power_tx_gain_9280_2), 6);
 571                 else
 572                         INIT_INI_ARRAY(&ah->iniModesTxGain,
 573                         ar9280Modes_original_tx_gain_9280_2,
 574                         ARRAY_SIZE(ar9280Modes_original_tx_gain_9280_2), 6);
 575         } else {
 576                 INIT_INI_ARRAY(&ah->iniModesTxGain,
 577                 ar9280Modes_original_tx_gain_9280_2,
 578                 ARRAY_SIZE(ar9280Modes_original_tx_gain_9280_2), 6);
 579         }
 580 }
 581
 582 static int ath9k_hw_post_init(struct ath_hw *ah)
 583 {
 584         int ecode;
 585
 586         if (!ath9k_hw_chip_test(ah))
 587                 return -ENODEV;
 588
 589         ecode = ath9k_hw_rf_claim(ah);
 590         if (ecode != 0)
 591                 return ecode;
 592
 593         ecode = ath9k_hw_eeprom_init(ah);
 594         if (ecode != 0)
 595                 return ecode;
 596
 597         DPRINTF(ah->ah_sc, ATH_DBG_CONFIG, "Eeprom VER: %d, REV: %d\n",
 598                 ah->eep_ops->get_eeprom_ver(ah), ah->eep_ops->get_eeprom_rev(ah));
 599
 600         ecode = ath9k_hw_rfattach(ah);
 601         if (ecode != 0)
 602                 return ecode;
 603
 604         if (!AR_SREV_9100(ah)) {
 605                 ath9k_hw_ani_setup(ah);
 606                 ath9k_hw_ani_init(ah);
 607         }
 608
 609         return 0;
 610 }
 611
 612 static bool ath9k_hw_devid_supported(u16 devid)
 613 {
 614         switch (devid) {
 615         case AR5416_DEVID_PCI:
 616         case AR5416_DEVID_PCIE:
 617         case AR5416_AR9100_DEVID:
 618         case AR9160_DEVID_PCI:
 619         case AR9280_DEVID_PCI:
 620         case AR9280_DEVID_PCIE:
 621         case AR9285_DEVID_PCIE:
 622         case AR5416_DEVID_AR9287_PCI:
 623         case AR5416_DEVID_AR9287_PCIE:
 624                 return true;
 625         default:
 626                 break;
 627         }
 628         return false;
 629 }
 630
 631 static bool ath9k_hw_macversion_supported(u32 macversion)
 632 {
 633         switch (macversion) {
 634         case AR_SREV_VERSION_5416_PCI:
 635         case AR_SREV_VERSION_5416_PCIE:
 636         case AR_SREV_VERSION_9160:
 637         case AR_SREV_VERSION_9100:
 638         case AR_SREV_VERSION_9280:
 639         case AR_SREV_VERSION_9285:
 640         case AR_SREV_VERSION_9287:
 641                 return true;
 642         /* Not yet */
 643         case AR_SREV_VERSION_9271:
 644         default:
 645                 break;
 646         }
 647         return false;
 648 }
 649
 650 static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
 651 {
 652         if (AR_SREV_9160_10_OR_LATER(ah)) {
 653                 if (AR_SREV_9280_10_OR_LATER(ah)) {
 654                         ah->iq_caldata.calData = &iq_cal_single_sample;
 655                         ah->adcgain_caldata.calData =
 656                                 &adc_gain_cal_single_sample;
 657                         ah->adcdc_caldata.calData =
 658                                 &adc_dc_cal_single_sample;
 659                         ah->adcdc_calinitdata.calData =
 660                                 &adc_init_dc_cal;
 661                 } else {
 662                         ah->iq_caldata.calData = &iq_cal_multi_sample;
 663                         ah->adcgain_caldata.calData =
 664                                 &adc_gain_cal_multi_sample;
 665                         ah->adcdc_caldata.calData =
 666                                 &adc_dc_cal_multi_sample;
 667                         ah->adcdc_calinitdata.calData =
 668                                 &adc_init_dc_cal;
 669                 }
 670                 ah->supp_cals = ADC_GAIN_CAL | ADC_DC_CAL | IQ_MISMATCH_CAL;
 671         }
 672 }
 673
 674 static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
 675 {
 676         if (AR_SREV_9271(ah)) {
 677                 INIT_INI_ARRAY(&ah->iniModes, ar9271Modes_9271_1_0,
 678                                ARRAY_SIZE(ar9271Modes_9271_1_0), 6);
 679                 INIT_INI_ARRAY(&ah->iniCommon, ar9271Common_9271_1_0,
 680                                ARRAY_SIZE(ar9271Common_9271_1_0), 2);
 681                 return;
 682         }
 683
 684         if (AR_SREV_9287_11_OR_LATER(ah)) {
 685                 INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_1,
 686                                 ARRAY_SIZE(ar9287Modes_9287_1_1), 6);
 687                 INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_1,
 688                                 ARRAY_SIZE(ar9287Common_9287_1_1), 2);
 689                 if (ah->config.pcie_clock_req)
 690                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 691                         ar9287PciePhy_clkreq_off_L1_9287_1_1,
 692                         ARRAY_SIZE(ar9287PciePhy_clkreq_off_L1_9287_1_1), 2);
 693                 else
 694                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 695                         ar9287PciePhy_clkreq_always_on_L1_9287_1_1,
 696                         ARRAY_SIZE(ar9287PciePhy_clkreq_always_on_L1_9287_1_1),
 697                                         2);
 698         } else if (AR_SREV_9287_10_OR_LATER(ah)) {
 699                 INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_0,
 700                                 ARRAY_SIZE(ar9287Modes_9287_1_0), 6);
 701                 INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_0,
 702                                 ARRAY_SIZE(ar9287Common_9287_1_0), 2);
 703
 704                 if (ah->config.pcie_clock_req)
 705                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 706                         ar9287PciePhy_clkreq_off_L1_9287_1_0,
 707                         ARRAY_SIZE(ar9287PciePhy_clkreq_off_L1_9287_1_0), 2);
 708                 else
 709                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 710                         ar9287PciePhy_clkreq_always_on_L1_9287_1_0,
 711                         ARRAY_SIZE(ar9287PciePhy_clkreq_always_on_L1_9287_1_0),
 712                                   2);
 713         } else if (AR_SREV_9285_12_OR_LATER(ah)) {
 714
 715
 716                 INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285_1_2,
 717                                ARRAY_SIZE(ar9285Modes_9285_1_2), 6);
 718                 INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285_1_2,
 719                                ARRAY_SIZE(ar9285Common_9285_1_2), 2);
 720
 721                 if (ah->config.pcie_clock_req) {
 722                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 723                         ar9285PciePhy_clkreq_off_L1_9285_1_2,
 724                         ARRAY_SIZE(ar9285PciePhy_clkreq_off_L1_9285_1_2), 2);
 725                 } else {
 726                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 727                         ar9285PciePhy_clkreq_always_on_L1_9285_1_2,
 728                         ARRAY_SIZE(ar9285PciePhy_clkreq_always_on_L1_9285_1_2),
 729                                   2);
 730                 }
 731         } else if (AR_SREV_9285_10_OR_LATER(ah)) {
 732                 INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285,
 733                                ARRAY_SIZE(ar9285Modes_9285), 6);
 734                 INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285,
 735                                ARRAY_SIZE(ar9285Common_9285), 2);
 736
 737                 if (ah->config.pcie_clock_req) {
 738                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 739                         ar9285PciePhy_clkreq_off_L1_9285,
 740                         ARRAY_SIZE(ar9285PciePhy_clkreq_off_L1_9285), 2);
 741                 } else {
 742                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 743                         ar9285PciePhy_clkreq_always_on_L1_9285,
 744                         ARRAY_SIZE(ar9285PciePhy_clkreq_always_on_L1_9285), 2);
 745                 }
 746         } else if (AR_SREV_9280_20_OR_LATER(ah)) {
 747                 INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280_2,
 748                                ARRAY_SIZE(ar9280Modes_9280_2), 6);
 749                 INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280_2,
 750                                ARRAY_SIZE(ar9280Common_9280_2), 2);
 751
 752                 if (ah->config.pcie_clock_req) {
 753                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 754                                ar9280PciePhy_clkreq_off_L1_9280,
 755                                ARRAY_SIZE(ar9280PciePhy_clkreq_off_L1_9280),2);
 756                 } else {
 757                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 758                                ar9280PciePhy_clkreq_always_on_L1_9280,
 759                                ARRAY_SIZE(ar9280PciePhy_clkreq_always_on_L1_9280), 2);
 760                 }
 761                 INIT_INI_ARRAY(&ah->iniModesAdditional,
 762                                ar9280Modes_fast_clock_9280_2,
 763                                ARRAY_SIZE(ar9280Modes_fast_clock_9280_2), 3);
 764         } else if (AR_SREV_9280_10_OR_LATER(ah)) {
 765                 INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280,
 766                                ARRAY_SIZE(ar9280Modes_9280), 6);
 767                 INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280,
 768                                ARRAY_SIZE(ar9280Common_9280), 2);
 769         } else if (AR_SREV_9160_10_OR_LATER(ah)) {
 770                 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9160,
 771                                ARRAY_SIZE(ar5416Modes_9160), 6);
 772                 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9160,
 773                                ARRAY_SIZE(ar5416Common_9160), 2);
 774                 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0_9160,
 775                                ARRAY_SIZE(ar5416Bank0_9160), 2);
 776                 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain_9160,
 777                                ARRAY_SIZE(ar5416BB_RfGain_9160), 3);
 778                 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1_9160,
 779                                ARRAY_SIZE(ar5416Bank1_9160), 2);
 780                 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2_9160,
 781                                ARRAY_SIZE(ar5416Bank2_9160), 2);
 782                 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3_9160,
 783                                ARRAY_SIZE(ar5416Bank3_9160), 3);
 784                 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6_9160,
 785                                ARRAY_SIZE(ar5416Bank6_9160), 3);
 786                 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC_9160,
 787                                ARRAY_SIZE(ar5416Bank6TPC_9160), 3);
 788                 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7_9160,
 789                                ARRAY_SIZE(ar5416Bank7_9160), 2);
 790                 if (AR_SREV_9160_11(ah)) {
 791                         INIT_INI_ARRAY(&ah->iniAddac,
 792                                        ar5416Addac_91601_1,
 793                                        ARRAY_SIZE(ar5416Addac_91601_1), 2);
 794                 } else {
 795                         INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9160,
 796                                        ARRAY_SIZE(ar5416Addac_9160), 2);
 797                 }
 798         } else if (AR_SREV_9100_OR_LATER(ah)) {
 799                 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9100,
 800                                ARRAY_SIZE(ar5416Modes_9100), 6);
 801                 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9100,
 802                                ARRAY_SIZE(ar5416Common_9100), 2);
 803                 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0_9100,
 804                                ARRAY_SIZE(ar5416Bank0_9100), 2);
 805                 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain_9100,
 806                                ARRAY_SIZE(ar5416BB_RfGain_9100), 3);
 807                 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1_9100,
 808                                ARRAY_SIZE(ar5416Bank1_9100), 2);
 809                 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2_9100,
 810                                ARRAY_SIZE(ar5416Bank2_9100), 2);
 811                 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3_9100,
 812                                ARRAY_SIZE(ar5416Bank3_9100), 3);
 813                 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6_9100,
 814                                ARRAY_SIZE(ar5416Bank6_9100), 3);
 815                 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC_9100,
 816                                ARRAY_SIZE(ar5416Bank6TPC_9100), 3);
 817                 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7_9100,
 818                                ARRAY_SIZE(ar5416Bank7_9100), 2);
 819                 INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9100,
 820                                ARRAY_SIZE(ar5416Addac_9100), 2);
 821         } else {
 822                 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes,
 823                                ARRAY_SIZE(ar5416Modes), 6);
 824                 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common,
 825                                ARRAY_SIZE(ar5416Common), 2);
 826                 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0,
 827                                ARRAY_SIZE(ar5416Bank0), 2);
 828                 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain,
 829                                ARRAY_SIZE(ar5416BB_RfGain), 3);
 830                 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1,
 831                                ARRAY_SIZE(ar5416Bank1), 2);
 832                 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2,
 833                                ARRAY_SIZE(ar5416Bank2), 2);
 834                 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3,
 835                                ARRAY_SIZE(ar5416Bank3), 3);
 836                 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6,
 837                                ARRAY_SIZE(ar5416Bank6), 3);
 838                 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC,
 839                                ARRAY_SIZE(ar5416Bank6TPC), 3);
 840                 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7,
 841                                ARRAY_SIZE(ar5416Bank7), 2);
 842                 INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac,
 843                                ARRAY_SIZE(ar5416Addac), 2);
 844         }
 845 }
 846
 847 static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
 848 {
 849         if (AR_SREV_9287_11(ah))
 850                 INIT_INI_ARRAY(&ah->iniModesRxGain,
 851                 ar9287Modes_rx_gain_9287_1_1,
 852                 ARRAY_SIZE(ar9287Modes_rx_gain_9287_1_1), 6);
 853         else if (AR_SREV_9287_10(ah))
 854                 INIT_INI_ARRAY(&ah->iniModesRxGain,
 855                 ar9287Modes_rx_gain_9287_1_0,
 856                 ARRAY_SIZE(ar9287Modes_rx_gain_9287_1_0), 6);
 857         else if (AR_SREV_9280_20(ah))
 858                 ath9k_hw_init_rxgain_ini(ah);
 859
 860         if (AR_SREV_9287_11(ah)) {
 861                 INIT_INI_ARRAY(&ah->iniModesTxGain,
 862                 ar9287Modes_tx_gain_9287_1_1,
 863                 ARRAY_SIZE(ar9287Modes_tx_gain_9287_1_1), 6);
 864         } else if (AR_SREV_9287_10(ah)) {
 865                 INIT_INI_ARRAY(&ah->iniModesTxGain,
 866                 ar9287Modes_tx_gain_9287_1_0,
 867                 ARRAY_SIZE(ar9287Modes_tx_gain_9287_1_0), 6);
 868         } else if (AR_SREV_9280_20(ah)) {
 869                 ath9k_hw_init_txgain_ini(ah);
 870         } else if (AR_SREV_9285_12_OR_LATER(ah)) {
 871                 u32 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);
 872
 873                 /* txgain table */
 874                 if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER) {
 875                         INIT_INI_ARRAY(&ah->iniModesTxGain,
 876                         ar9285Modes_high_power_tx_gain_9285_1_2,
 877                         ARRAY_SIZE(ar9285Modes_high_power_tx_gain_9285_1_2), 6);
 878                 } else {
 879                         INIT_INI_ARRAY(&ah->iniModesTxGain,
 880                         ar9285Modes_original_tx_gain_9285_1_2,
 881                         ARRAY_SIZE(ar9285Modes_original_tx_gain_9285_1_2), 6);
 882                 }
 883
 884         }
 885 }
 886
 887 static void ath9k_hw_init_11a_eeprom_fix(struct ath_hw *ah)
 888 {
 889         u32 i, j;
 890
 891         if ((ah->hw_version.devid == AR9280_DEVID_PCI) &&
 892             test_bit(ATH9K_MODE_11A, ah->caps.wireless_modes)) {
 893
 894                 /* EEPROM Fixup */
 895                 for (i = 0; i < ah->iniModes.ia_rows; i++) {
 896                         u32 reg = INI_RA(&ah->iniModes, i, 0);
 897
 898                         for (j = 1; j < ah->iniModes.ia_columns; j++) {
 899                                 u32 val = INI_RA(&ah->iniModes, i, j);
 900
 901                                 INI_RA(&ah->iniModes, i, j) =
 902                                         ath9k_hw_ini_fixup(ah,
 903                                                            &ah->eeprom.def,
 904                                                            reg, val);
 905                         }
 906                 }
 907         }
 908 }
 909
 910 int ath9k_hw_init(struct ath_hw *ah)
 911 {
 912         int r = 0;
 913
 914         if (!ath9k_hw_devid_supported(ah->hw_version.devid))
 915                 return -EOPNOTSUPP;
 916
 917         ath9k_hw_init_defaults(ah);
 918         ath9k_hw_init_config(ah);
 919
 920         if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
 921                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL, "Couldn't reset chip\n");
 922                 return -EIO;
 923         }
 924
 925         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
 926                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL, "Couldn't wakeup chip\n");
 927                 return -EIO;
 928         }
 929
 930         if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
 931                 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
 932                     (AR_SREV_9280(ah) && !ah->is_pciexpress)) {
 933                         ah->config.serialize_regmode =
 934                                 SER_REG_MODE_ON;
 935                 } else {
 936                         ah->config.serialize_regmode =
 937                                 SER_REG_MODE_OFF;
 938                 }
 939         }
 940
 941         DPRINTF(ah->ah_sc, ATH_DBG_RESET, "serialize_regmode is %d\n",
 942                 ah->config.serialize_regmode);
 943
 944         if (!ath9k_hw_macversion_supported(ah->hw_version.macVersion)) {
 945                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 946                         "Mac Chip Rev 0x%02x.%x is not supported by "
 947                         "this driver\n", ah->hw_version.macVersion,
 948                         ah->hw_version.macRev);
 949                 return -EOPNOTSUPP;
 950         }
 951
 952         if (AR_SREV_9100(ah)) {
 953                 ah->iq_caldata.calData = &iq_cal_multi_sample;
 954                 ah->supp_cals = IQ_MISMATCH_CAL;
 955                 ah->is_pciexpress = false;
 956         }
 957
 958         if (AR_SREV_9271(ah))
 959                 ah->is_pciexpress = false;
 960
 961         ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
 962
 963         ath9k_hw_init_cal_settings(ah);
 964
 965         ah->ani_function = ATH9K_ANI_ALL;
 966         if (AR_SREV_9280_10_OR_LATER(ah))
 967                 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
 968
 969         ath9k_hw_init_mode_regs(ah);
 970
 971         if (ah->is_pciexpress)
 972                 ath9k_hw_configpcipowersave(ah, 0);
 973         else
 974                 ath9k_hw_disablepcie(ah);
 975
 976         r = ath9k_hw_post_init(ah);
 977         if (r)
 978                 return r;
 979
 980         ath9k_hw_init_mode_gain_regs(ah);
 981         ath9k_hw_fill_cap_info(ah);
 982         ath9k_hw_init_11a_eeprom_fix(ah);
 983
 984         r = ath9k_hw_init_macaddr(ah);
 985         if (r) {
 986                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 987                         "Failed to initialize MAC address\n");
 988                 return r;
 989         }
 990
 991         if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
 992                 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
 993         else
 994                 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
 995
 996         ath9k_init_nfcal_hist_buffer(ah);
 997
 998         return 0;
 999 }
1000
1001 static void ath9k_hw_init_bb(struct ath_hw *ah,
1002                              struct ath9k_channel *chan)
1003 {
1004         u32 synthDelay;
1005
1006         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
1007         if (IS_CHAN_B(chan))
1008                 synthDelay = (4 * synthDelay) / 22;
1009         else
1010                 synthDelay /= 10;
1011
1012         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
1013
1014         udelay(synthDelay + BASE_ACTIVATE_DELAY);
1015 }
1016
1017 static void ath9k_hw_init_qos(struct ath_hw *ah)
1018 {
1019         REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
1020         REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
1021
1022         REG_WRITE(ah, AR_QOS_NO_ACK,
1023                   SM(2, AR_QOS_NO_ACK_TWO_BIT) |
1024                   SM(5, AR_QOS_NO_ACK_BIT_OFF) |
1025                   SM(0, AR_QOS_NO_ACK_BYTE_OFF));
1026
1027         REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
1028         REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
1029         REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
1030         REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
1031         REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
1032 }
1033
1034 static void ath9k_hw_init_pll(struct ath_hw *ah,
1035                               struct ath9k_channel *chan)
1036 {
1037         u32 pll;
1038
1039         if (AR_SREV_9100(ah)) {
1040                 if (chan && IS_CHAN_5GHZ(chan))
1041                         pll = 0x1450;
1042                 else
1043                         pll = 0x1458;
1044         } else {
1045                 if (AR_SREV_9280_10_OR_LATER(ah)) {
1046                         pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
1047
1048                         if (chan && IS_CHAN_HALF_RATE(chan))
1049                                 pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
1050                         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1051                                 pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
1052
1053                         if (chan && IS_CHAN_5GHZ(chan)) {
1054                                 pll |= SM(0x28, AR_RTC_9160_PLL_DIV);
1055
1056
1057                                 if (AR_SREV_9280_20(ah)) {
1058                                         if (((chan->channel % 20) == 0)
1059                                             || ((chan->channel % 10) == 0))
1060                                                 pll = 0x2850;
1061                                         else
1062                                                 pll = 0x142c;
1063                                 }
1064                         } else {
1065                                 pll |= SM(0x2c, AR_RTC_9160_PLL_DIV);
1066                         }
1067
1068                 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1069
1070                         pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
1071
1072                         if (chan && IS_CHAN_HALF_RATE(chan))
1073                                 pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
1074                         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1075                                 pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
1076
1077                         if (chan && IS_CHAN_5GHZ(chan))
1078                                 pll |= SM(0x50, AR_RTC_9160_PLL_DIV);
1079                         else
1080                                 pll |= SM(0x58, AR_RTC_9160_PLL_DIV);
1081                 } else {
1082                         pll = AR_RTC_PLL_REFDIV_5 | AR_RTC_PLL_DIV2;
1083
1084                         if (chan && IS_CHAN_HALF_RATE(chan))
1085                                 pll |= SM(0x1, AR_RTC_PLL_CLKSEL);
1086                         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1087                                 pll |= SM(0x2, AR_RTC_PLL_CLKSEL);
1088
1089                         if (chan && IS_CHAN_5GHZ(chan))
1090                                 pll |= SM(0xa, AR_RTC_PLL_DIV);
1091                         else
1092                                 pll |= SM(0xb, AR_RTC_PLL_DIV);
1093                 }
1094         }
1095         REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
1096
1097         udelay(RTC_PLL_SETTLE_DELAY);
1098
1099         REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
1100 }
1101
1102 static void ath9k_hw_init_chain_masks(struct ath_hw *ah)
1103 {
1104         int rx_chainmask, tx_chainmask;
1105
1106         rx_chainmask = ah->rxchainmask;
1107         tx_chainmask = ah->txchainmask;
1108
1109         switch (rx_chainmask) {
1110         case 0x5:
1111                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
1112                             AR_PHY_SWAP_ALT_CHAIN);
1113         case 0x3:
1114                 if (((ah)->hw_version.macVersion <= AR_SREV_VERSION_9160)) {
1115                         REG_WRITE(ah, AR_PHY_RX_CHAINMASK, 0x7);
1116                         REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, 0x7);
1117                         break;
1118                 }
1119         case 0x1:
1120         case 0x2:
1121         case 0x7:
1122                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
1123                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
1124                 break;
1125         default:
1126                 break;
1127         }
1128
1129         REG_WRITE(ah, AR_SELFGEN_MASK, tx_chainmask);
1130         if (tx_chainmask == 0x5) {
1131                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
1132                             AR_PHY_SWAP_ALT_CHAIN);
1133         }
1134         if (AR_SREV_9100(ah))
1135                 REG_WRITE(ah, AR_PHY_ANALOG_SWAP,
1136                           REG_READ(ah, AR_PHY_ANALOG_SWAP) | 0x00000001);
1137 }
1138
1139 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
1140                                           enum nl80211_iftype opmode)
1141 {
1142         ah->mask_reg = AR_IMR_TXERR |
1143                 AR_IMR_TXURN |
1144                 AR_IMR_RXERR |
1145                 AR_IMR_RXORN |
1146                 AR_IMR_BCNMISC;
1147
1148         if (ah->config.intr_mitigation)
1149                 ah->mask_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
1150         else
1151                 ah->mask_reg |= AR_IMR_RXOK;
1152
1153         ah->mask_reg |= AR_IMR_TXOK;
1154
1155         if (opmode == NL80211_IFTYPE_AP)
1156                 ah->mask_reg |= AR_IMR_MIB;
1157
1158         REG_WRITE(ah, AR_IMR, ah->mask_reg);
1159         REG_WRITE(ah, AR_IMR_S2, REG_READ(ah, AR_IMR_S2) | AR_IMR_S2_GTT);
1160
1161         if (!AR_SREV_9100(ah)) {
1162                 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
1163                 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
1164                 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
1165         }
1166 }
1167
1168 static bool ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
1169 {
1170         if (us > ath9k_hw_mac_to_usec(ah, MS(0xffffffff, AR_TIME_OUT_ACK))) {
1171                 DPRINTF(ah->ah_sc, ATH_DBG_RESET, "bad ack timeout %u\n", us);
1172                 ah->acktimeout = (u32) -1;
1173                 return false;
1174         } else {
1175                 REG_RMW_FIELD(ah, AR_TIME_OUT,
1176                               AR_TIME_OUT_ACK, ath9k_hw_mac_to_clks(ah, us));
1177                 ah->acktimeout = us;
1178                 return true;
1179         }
1180 }
1181
1182 static bool ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
1183 {
1184         if (us > ath9k_hw_mac_to_usec(ah, MS(0xffffffff, AR_TIME_OUT_CTS))) {
1185                 DPRINTF(ah->ah_sc, ATH_DBG_RESET, "bad cts timeout %u\n", us);
1186                 ah->ctstimeout = (u32) -1;
1187                 return false;
1188         } else {
1189                 REG_RMW_FIELD(ah, AR_TIME_OUT,
1190                               AR_TIME_OUT_CTS, ath9k_hw_mac_to_clks(ah, us));
1191                 ah->ctstimeout = us;
1192                 return true;
1193         }
1194 }
1195
1196 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
1197 {
1198         if (tu > 0xFFFF) {
1199                 DPRINTF(ah->ah_sc, ATH_DBG_XMIT,
1200                         "bad global tx timeout %u\n", tu);
1201                 ah->globaltxtimeout = (u32) -1;
1202                 return false;
1203         } else {
1204                 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
1205                 ah->globaltxtimeout = tu;
1206                 return true;
1207         }
1208 }
1209
1210 static void ath9k_hw_init_user_settings(struct ath_hw *ah)
1211 {
1212         DPRINTF(ah->ah_sc, ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
1213                 ah->misc_mode);
1214
1215         if (ah->misc_mode != 0)
1216                 REG_WRITE(ah, AR_PCU_MISC,
1217                           REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
1218         if (ah->slottime != (u32) -1)
1219                 ath9k_hw_setslottime(ah, ah->slottime);
1220         if (ah->acktimeout != (u32) -1)
1221                 ath9k_hw_set_ack_timeout(ah, ah->acktimeout);
1222         if (ah->ctstimeout != (u32) -1)
1223                 ath9k_hw_set_cts_timeout(ah, ah->ctstimeout);
1224         if (ah->globaltxtimeout != (u32) -1)
1225                 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
1226 }
1227
1228 const char *ath9k_hw_probe(u16 vendorid, u16 devid)
1229 {
1230         return vendorid == ATHEROS_VENDOR_ID ?
1231                 ath9k_hw_devname(devid) : NULL;
1232 }
1233
1234 void ath9k_hw_detach(struct ath_hw *ah)
1235 {
1236         if (!AR_SREV_9100(ah))
1237                 ath9k_hw_ani_disable(ah);
1238
1239         ath9k_hw_rf_free(ah);
1240         ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
1241         kfree(ah);
1242         ah = NULL;
1243 }
1244
1245 /*******/
1246 /* INI */
1247 /*******/
1248
1249 static void ath9k_hw_override_ini(struct ath_hw *ah,
1250                                   struct ath9k_channel *chan)
1251 {
1252         u32 val;
1253
1254         if (AR_SREV_9271(ah)) {
1255                 /*
1256                  * Enable spectral scan to solution for issues with stuck
1257                  * beacons on AR9271 1.0. The beacon stuck issue is not seeon on
1258                  * AR9271 1.1
1259                  */
1260                 if (AR_SREV_9271_10(ah)) {
1261                         val = REG_READ(ah, AR_PHY_SPECTRAL_SCAN) | AR_PHY_SPECTRAL_SCAN_ENABLE;
1262                         REG_WRITE(ah, AR_PHY_SPECTRAL_SCAN, val);
1263                 }
1264                 else if (AR_SREV_9271_11(ah))
1265                         /*
1266                          * change AR_PHY_RF_CTL3 setting to fix MAC issue
1267                          * present on AR9271 1.1
1268                          */
1269                         REG_WRITE(ah, AR_PHY_RF_CTL3, 0x3a020001);
1270                 return;
1271         }
1272
1273         /*
1274          * Set the RX_ABORT and RX_DIS and clear if off only after
1275          * RXE is set for MAC. This prevents frames with corrupted
1276          * descriptor status.
1277          */
1278         REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
1279
1280
1281         if (!AR_SREV_5416_20_OR_LATER(ah) ||
1282             AR_SREV_9280_10_OR_LATER(ah))
1283                 return;
1284         /*
1285          * Disable BB clock gating
1286          * Necessary to avoid issues on AR5416 2.0
1287          */
1288         REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
1289 }
1290
1291 static u32 ath9k_hw_def_ini_fixup(struct ath_hw *ah,
1292                               struct ar5416_eeprom_def *pEepData,
1293                               u32 reg, u32 value)
1294 {
1295         struct base_eep_header *pBase = &(pEepData->baseEepHeader);
1296
1297         switch (ah->hw_version.devid) {
1298         case AR9280_DEVID_PCI:
1299                 if (reg == 0x7894) {
1300                         DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
1301                                 "ini VAL: %x  EEPROM: %x\n", value,
1302                                 (pBase->version & 0xff));
1303
1304                         if ((pBase->version & 0xff) > 0x0a) {
1305                                 DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
1306                                         "PWDCLKIND: %d\n",
1307                                         pBase->pwdclkind);
1308                                 value &= ~AR_AN_TOP2_PWDCLKIND;
1309                                 value |= AR_AN_TOP2_PWDCLKIND &
1310                                         (pBase->pwdclkind << AR_AN_TOP2_PWDCLKIND_S);
1311                         } else {
1312                                 DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
1313                                         "PWDCLKIND Earlier Rev\n");
1314                         }
1315
1316                         DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
1317                                 "final ini VAL: %x\n", value);
1318                 }
1319                 break;
1320         }
1321
1322         return value;
1323 }
1324
1325 static u32 ath9k_hw_ini_fixup(struct ath_hw *ah,
1326                               struct ar5416_eeprom_def *pEepData,
1327                               u32 reg, u32 value)
1328 {
1329         if (ah->eep_map == EEP_MAP_4KBITS)
1330                 return value;
1331         else
1332                 return ath9k_hw_def_ini_fixup(ah, pEepData, reg, value);
1333 }
1334
1335 static void ath9k_olc_init(struct ath_hw *ah)
1336 {
1337         u32 i;
1338
1339         if (OLC_FOR_AR9287_10_LATER) {
1340                 REG_SET_BIT(ah, AR_PHY_TX_PWRCTRL9,
1341                                 AR_PHY_TX_PWRCTRL9_RES_DC_REMOVAL);
1342                 ath9k_hw_analog_shift_rmw(ah, AR9287_AN_TXPC0,
1343                                 AR9287_AN_TXPC0_TXPCMODE,
1344                                 AR9287_AN_TXPC0_TXPCMODE_S,
1345                                 AR9287_AN_TXPC0_TXPCMODE_TEMPSENSE);
1346                 udelay(100);
1347         } else {
1348                 for (i = 0; i < AR9280_TX_GAIN_TABLE_SIZE; i++)
1349                         ah->originalGain[i] =
1350                                 MS(REG_READ(ah, AR_PHY_TX_GAIN_TBL1 + i * 4),
1351                                                 AR_PHY_TX_GAIN);
1352                 ah->PDADCdelta = 0;
1353         }
1354 }
1355
1356 static u32 ath9k_regd_get_ctl(struct ath_regulatory *reg,
1357                               struct ath9k_channel *chan)
1358 {
1359         u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
1360
1361         if (IS_CHAN_B(chan))
1362                 ctl |= CTL_11B;
1363         else if (IS_CHAN_G(chan))
1364                 ctl |= CTL_11G;
1365         else
1366                 ctl |= CTL_11A;
1367
1368         return ctl;
1369 }
1370
1371 static int ath9k_hw_process_ini(struct ath_hw *ah,
1372                                 struct ath9k_channel *chan,
1373                                 enum ath9k_ht_macmode macmode)
1374 {
1375         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1376         int i, regWrites = 0;
1377         struct ieee80211_channel *channel = chan->chan;
1378         u32 modesIndex, freqIndex;
1379
1380         switch (chan->chanmode) {
1381         case CHANNEL_A:
1382         case CHANNEL_A_HT20:
1383                 modesIndex = 1;
1384                 freqIndex = 1;
1385                 break;
1386         case CHANNEL_A_HT40PLUS:
1387         case CHANNEL_A_HT40MINUS:
1388                 modesIndex = 2;
1389                 freqIndex = 1;
1390                 break;
1391         case CHANNEL_G:
1392         case CHANNEL_G_HT20:
1393         case CHANNEL_B:
1394                 modesIndex = 4;
1395                 freqIndex = 2;
1396                 break;
1397         case CHANNEL_G_HT40PLUS:
1398         case CHANNEL_G_HT40MINUS:
1399                 modesIndex = 3;
1400                 freqIndex = 2;
1401                 break;
1402
1403         default:
1404                 return -EINVAL;
1405         }
1406
1407         REG_WRITE(ah, AR_PHY(0), 0x00000007);
1408         REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_EXTERNAL_RADIO);
1409         ah->eep_ops->set_addac(ah, chan);
1410
1411         if (AR_SREV_5416_22_OR_LATER(ah)) {
1412                 REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
1413         } else {
1414                 struct ar5416IniArray temp;
1415                 u32 addacSize =
1416                         sizeof(u32) * ah->iniAddac.ia_rows *
1417                         ah->iniAddac.ia_columns;
1418
1419                 memcpy(ah->addac5416_21,
1420                        ah->iniAddac.ia_array, addacSize);
1421
1422                 (ah->addac5416_21)[31 * ah->iniAddac.ia_columns + 1] = 0;
1423
1424                 temp.ia_array = ah->addac5416_21;
1425                 temp.ia_columns = ah->iniAddac.ia_columns;
1426                 temp.ia_rows = ah->iniAddac.ia_rows;
1427                 REG_WRITE_ARRAY(&temp, 1, regWrites);
1428         }
1429
1430         REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC);
1431
1432         for (i = 0; i < ah->iniModes.ia_rows; i++) {
1433                 u32 reg = INI_RA(&ah->iniModes, i, 0);
1434                 u32 val = INI_RA(&ah->iniModes, i, modesIndex);
1435
1436                 REG_WRITE(ah, reg, val);
1437
1438                 if (reg >= 0x7800 && reg < 0x78a0
1439                     && ah->config.analog_shiftreg) {
1440                         udelay(100);
1441                 }
1442
1443                 DO_DELAY(regWrites);
1444         }
1445
1446         if (AR_SREV_9280(ah) || AR_SREV_9287_10_OR_LATER(ah))
1447                 REG_WRITE_ARRAY(&ah->iniModesRxGain, modesIndex, regWrites);
1448
1449         if (AR_SREV_9280(ah) || AR_SREV_9285_12_OR_LATER(ah) ||
1450             AR_SREV_9287_10_OR_LATER(ah))
1451                 REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
1452
1453         for (i = 0; i < ah->iniCommon.ia_rows; i++) {
1454                 u32 reg = INI_RA(&ah->iniCommon, i, 0);
1455                 u32 val = INI_RA(&ah->iniCommon, i, 1);
1456
1457                 REG_WRITE(ah, reg, val);
1458
1459                 if (reg >= 0x7800 && reg < 0x78a0
1460                     && ah->config.analog_shiftreg) {
1461                         udelay(100);
1462                 }
1463
1464                 DO_DELAY(regWrites);
1465         }
1466
1467         ath9k_hw_write_regs(ah, modesIndex, freqIndex, regWrites);
1468
1469         if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan)) {
1470                 REG_WRITE_ARRAY(&ah->iniModesAdditional, modesIndex,
1471                                 regWrites);
1472         }
1473
1474         ath9k_hw_override_ini(ah, chan);
1475         ath9k_hw_set_regs(ah, chan, macmode);
1476         ath9k_hw_init_chain_masks(ah);
1477
1478         if (OLC_FOR_AR9280_20_LATER)
1479                 ath9k_olc_init(ah);
1480
1481         ah->eep_ops->set_txpower(ah, chan,
1482                                  ath9k_regd_get_ctl(regulatory, chan),
1483                                  channel->max_antenna_gain * 2,
1484                                  channel->max_power * 2,
1485                                  min((u32) MAX_RATE_POWER,
1486                                  (u32) regulatory->power_limit));
1487
1488         if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
1489                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
1490                         "ar5416SetRfRegs failed\n");
1491                 return -EIO;
1492         }
1493
1494         return 0;
1495 }
1496
1497 /****************************************/
1498 /* Reset and Channel Switching Routines */
1499 /****************************************/
1500
1501 static void ath9k_hw_set_rfmode(struct ath_hw *ah, struct ath9k_channel *chan)
1502 {
1503         u32 rfMode = 0;
1504
1505         if (chan == NULL)
1506                 return;
1507
1508         rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
1509                 ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
1510
1511         if (!AR_SREV_9280_10_OR_LATER(ah))
1512                 rfMode |= (IS_CHAN_5GHZ(chan)) ?
1513                         AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ;
1514
1515         if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan))
1516                 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
1517
1518         REG_WRITE(ah, AR_PHY_MODE, rfMode);
1519 }
1520
1521 static void ath9k_hw_mark_phy_inactive(struct ath_hw *ah)
1522 {
1523         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
1524 }
1525
1526 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
1527 {
1528         u32 regval;
1529
1530         /*
1531          * set AHB_MODE not to do cacheline prefetches
1532         */
1533         regval = REG_READ(ah, AR_AHB_MODE);
1534         REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
1535
1536         /*
1537          * let mac dma reads be in 128 byte chunks
1538          */
1539         regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
1540         REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
1541
1542         /*
1543          * Restore TX Trigger Level to its pre-reset value.
1544          * The initial value depends on whether aggregation is enabled, and is
1545          * adjusted whenever underruns are detected.
1546          */
1547         REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
1548
1549         /*
1550          * let mac dma writes be in 128 byte chunks
1551          */
1552         regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
1553         REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
1554
1555         /*
1556          * Setup receive FIFO threshold to hold off TX activities
1557          */
1558         REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
1559
1560         /*
1561          * reduce the number of usable entries in PCU TXBUF to avoid
1562          * wrap around issues.
1563          */
1564         if (AR_SREV_9285(ah)) {
1565                 /* For AR9285 the number of Fifos are reduced to half.
1566                  * So set the usable tx buf size also to half to
1567                  * avoid data/delimiter underruns
1568                  */
1569                 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1570                           AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
1571         } else if (!AR_SREV_9271(ah)) {
1572                 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1573                           AR_PCU_TXBUF_CTRL_USABLE_SIZE);
1574         }
1575 }
1576
1577 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
1578 {
1579         u32 val;
1580
1581         val = REG_READ(ah, AR_STA_ID1);
1582         val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
1583         switch (opmode) {
1584         case NL80211_IFTYPE_AP:
1585                 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
1586                           | AR_STA_ID1_KSRCH_MODE);
1587                 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1588                 break;
1589         case NL80211_IFTYPE_ADHOC:
1590         case NL80211_IFTYPE_MESH_POINT:
1591                 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
1592                           | AR_STA_ID1_KSRCH_MODE);
1593                 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1594                 break;
1595         case NL80211_IFTYPE_STATION:
1596         case NL80211_IFTYPE_MONITOR:
1597                 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
1598                 break;
1599         }
1600 }
1601
1602 static inline void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah,
1603                                                  u32 coef_scaled,
1604                                                  u32 *coef_mantissa,
1605                                                  u32 *coef_exponent)
1606 {
1607         u32 coef_exp, coef_man;
1608
1609         for (coef_exp = 31; coef_exp > 0; coef_exp--)
1610                 if ((coef_scaled >> coef_exp) & 0x1)
1611                         break;
1612
1613         coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1614
1615         coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1616
1617         *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1618         *coef_exponent = coef_exp - 16;
1619 }
1620
1621 static void ath9k_hw_set_delta_slope(struct ath_hw *ah,
1622                                      struct ath9k_channel *chan)
1623 {
1624         u32 coef_scaled, ds_coef_exp, ds_coef_man;
1625         u32 clockMhzScaled = 0x64000000;
1626         struct chan_centers centers;
1627
1628         if (IS_CHAN_HALF_RATE(chan))
1629                 clockMhzScaled = clockMhzScaled >> 1;
1630         else if (IS_CHAN_QUARTER_RATE(chan))
1631                 clockMhzScaled = clockMhzScaled >> 2;
1632
1633         ath9k_hw_get_channel_centers(ah, chan, &centers);
1634         coef_scaled = clockMhzScaled / centers.synth_center;
1635
1636         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
1637                                       &ds_coef_exp);
1638
1639         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
1640                       AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
1641         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
1642                       AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
1643
1644         coef_scaled = (9 * coef_scaled) / 10;
1645
1646         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
1647                                       &ds_coef_exp);
1648
1649         REG_RMW_FIELD(ah, AR_PHY_HALFGI,
1650                       AR_PHY_HALFGI_DSC_MAN, ds_coef_man);
1651         REG_RMW_FIELD(ah, AR_PHY_HALFGI,
1652                       AR_PHY_HALFGI_DSC_EXP, ds_coef_exp);
1653 }
1654
1655 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1656 {
1657         u32 rst_flags;
1658         u32 tmpReg;
1659
1660         if (AR_SREV_9100(ah)) {
1661                 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
1662                 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
1663                 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
1664                 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
1665                 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1666         }
1667
1668         REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1669                   AR_RTC_FORCE_WAKE_ON_INT);
1670
1671         if (AR_SREV_9100(ah)) {
1672                 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1673                         AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1674         } else {
1675                 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1676                 if (tmpReg &
1677                     (AR_INTR_SYNC_LOCAL_TIMEOUT |
1678                      AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1679                         REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1680                         REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1681                 } else {
1682                         REG_WRITE(ah, AR_RC, AR_RC_AHB);
1683                 }
1684
1685                 rst_flags = AR_RTC_RC_MAC_WARM;
1686                 if (type == ATH9K_RESET_COLD)
1687                         rst_flags |= AR_RTC_RC_MAC_COLD;
1688         }
1689
1690         REG_WRITE(ah, AR_RTC_RC, rst_flags);
1691         udelay(50);
1692
1693         REG_WRITE(ah, AR_RTC_RC, 0);
1694         if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1695                 DPRINTF(ah->ah_sc, ATH_DBG_RESET,
1696                         "RTC stuck in MAC reset\n");
1697                 return false;
1698         }
1699
1700         if (!AR_SREV_9100(ah))
1701                 REG_WRITE(ah, AR_RC, 0);
1702
1703         ath9k_hw_init_pll(ah, NULL);
1704
1705         if (AR_SREV_9100(ah))
1706                 udelay(50);
1707
1708         return true;
1709 }
1710
1711 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1712 {
1713         REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1714                   AR_RTC_FORCE_WAKE_ON_INT);
1715
1716         if (!AR_SREV_9100(ah))
1717                 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1718
1719         REG_WRITE(ah, AR_RTC_RESET, 0);
1720         udelay(2);
1721
1722         if (!AR_SREV_9100(ah))
1723                 REG_WRITE(ah, AR_RC, 0);
1724
1725         REG_WRITE(ah, AR_RTC_RESET, 1);
1726
1727         if (!ath9k_hw_wait(ah,
1728                            AR_RTC_STATUS,
1729                            AR_RTC_STATUS_M,
1730                            AR_RTC_STATUS_ON,
1731                            AH_WAIT_TIMEOUT)) {
1732                 DPRINTF(ah->ah_sc, ATH_DBG_RESET, "RTC not waking up\n");
1733                 return false;
1734         }
1735
1736         ath9k_hw_read_revisions(ah);
1737
1738         return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1739 }
1740
1741 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1742 {
1743         REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1744                   AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1745
1746         switch (type) {
1747         case ATH9K_RESET_POWER_ON:
1748                 return ath9k_hw_set_reset_power_on(ah);
1749         case ATH9K_RESET_WARM:
1750         case ATH9K_RESET_COLD:
1751                 return ath9k_hw_set_reset(ah, type);
1752         default:
1753                 return false;
1754         }
1755 }
1756
1757 static void ath9k_hw_set_regs(struct ath_hw *ah, struct ath9k_channel *chan,
1758                               enum ath9k_ht_macmode macmode)
1759 {
1760         u32 phymode;
1761         u32 enableDacFifo = 0;
1762
1763         if (AR_SREV_9285_10_OR_LATER(ah))
1764                 enableDacFifo = (REG_READ(ah, AR_PHY_TURBO) &
1765                                          AR_PHY_FC_ENABLE_DAC_FIFO);
1766
1767         phymode = AR_PHY_FC_HT_EN | AR_PHY_FC_SHORT_GI_40
1768                 | AR_PHY_FC_SINGLE_HT_LTF1 | AR_PHY_FC_WALSH | enableDacFifo;
1769
1770         if (IS_CHAN_HT40(chan)) {
1771                 phymode |= AR_PHY_FC_DYN2040_EN;
1772
1773                 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
1774                     (chan->chanmode == CHANNEL_G_HT40PLUS))
1775                         phymode |= AR_PHY_FC_DYN2040_PRI_CH;
1776
1777                 if (ah->extprotspacing == ATH9K_HT_EXTPROTSPACING_25)
1778                         phymode |= AR_PHY_FC_DYN2040_EXT_CH;
1779         }
1780         REG_WRITE(ah, AR_PHY_TURBO, phymode);
1781
1782         ath9k_hw_set11nmac2040(ah, macmode);
1783
1784         REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
1785         REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
1786 }
1787
1788 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1789                                 struct ath9k_channel *chan)
1790 {
1791         if (OLC_FOR_AR9280_20_LATER) {
1792                 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1793                         return false;
1794         } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1795                 return false;
1796
1797         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1798                 return false;
1799
1800         ah->chip_fullsleep = false;
1801         ath9k_hw_init_pll(ah, chan);
1802         ath9k_hw_set_rfmode(ah, chan);
1803
1804         return true;
1805 }
1806
1807 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1808                                     struct ath9k_channel *chan,
1809                                     enum ath9k_ht_macmode macmode)
1810 {
1811         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1812         struct ieee80211_channel *channel = chan->chan;
1813         u32 synthDelay, qnum;
1814
1815         for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1816                 if (ath9k_hw_numtxpending(ah, qnum)) {
1817                         DPRINTF(ah->ah_sc, ATH_DBG_QUEUE,
1818                                 "Transmit frames pending on queue %d\n", qnum);
1819                         return false;
1820                 }
1821         }
1822
1823         REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
1824         if (!ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
1825                            AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT)) {
1826                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
1827                         "Could not kill baseband RX\n");
1828                 return false;
1829         }
1830
1831         ath9k_hw_set_regs(ah, chan, macmode);
1832
1833         if (AR_SREV_9280_10_OR_LATER(ah)) {
1834                 ath9k_hw_ar9280_set_channel(ah, chan);
1835         } else {
1836                 if (!(ath9k_hw_set_channel(ah, chan))) {
1837                         DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
1838                                 "Failed to set channel\n");
1839                         return false;
1840                 }
1841         }
1842
1843         ah->eep_ops->set_txpower(ah, chan,
1844                              ath9k_regd_get_ctl(regulatory, chan),
1845                              channel->max_antenna_gain * 2,
1846                              channel->max_power * 2,
1847                              min((u32) MAX_RATE_POWER,
1848                              (u32) regulatory->power_limit));
1849
1850         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
1851         if (IS_CHAN_B(chan))
1852                 synthDelay = (4 * synthDelay) / 22;
1853         else
1854                 synthDelay /= 10;
1855
1856         udelay(synthDelay + BASE_ACTIVATE_DELAY);
1857
1858         REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
1859
1860         if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1861                 ath9k_hw_set_delta_slope(ah, chan);
1862
1863         if (AR_SREV_9280_10_OR_LATER(ah))
1864                 ath9k_hw_9280_spur_mitigate(ah, chan);
1865         else
1866                 ath9k_hw_spur_mitigate(ah, chan);
1867
1868         if (!chan->oneTimeCalsDone)
1869                 chan->oneTimeCalsDone = true;
1870
1871         return true;
1872 }
1873
1874 static void ath9k_hw_9280_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan)
1875 {
1876         int bb_spur = AR_NO_SPUR;
1877         int freq;
1878         int bin, cur_bin;
1879         int bb_spur_off, spur_subchannel_sd;
1880         int spur_freq_sd;
1881         int spur_delta_phase;
1882         int denominator;
1883         int upper, lower, cur_vit_mask;
1884         int tmp, newVal;
1885         int i;
1886         int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
1887                           AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
1888         };
1889         int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
1890                          AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
1891         };
1892         int inc[4] = { 0, 100, 0, 0 };
1893         struct chan_centers centers;
1894
1895         int8_t mask_m[123];
1896         int8_t mask_p[123];
1897         int8_t mask_amt;
1898         int tmp_mask;
1899         int cur_bb_spur;
1900         bool is2GHz = IS_CHAN_2GHZ(chan);
1901
1902         memset(&mask_m, 0, sizeof(int8_t) * 123);
1903         memset(&mask_p, 0, sizeof(int8_t) * 123);
1904
1905         ath9k_hw_get_channel_centers(ah, chan, &centers);
1906         freq = centers.synth_center;
1907
1908         ah->config.spurmode = SPUR_ENABLE_EEPROM;
1909         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
1910                 cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
1911
1912                 if (is2GHz)
1913                         cur_bb_spur = (cur_bb_spur / 10) + AR_BASE_FREQ_2GHZ;
1914                 else
1915                         cur_bb_spur = (cur_bb_spur / 10) + AR_BASE_FREQ_5GHZ;
1916
1917                 if (AR_NO_SPUR == cur_bb_spur)
1918                         break;
1919                 cur_bb_spur = cur_bb_spur - freq;
1920
1921                 if (IS_CHAN_HT40(chan)) {
1922                         if ((cur_bb_spur > -AR_SPUR_FEEQ_BOUND_HT40) &&
1923                             (cur_bb_spur < AR_SPUR_FEEQ_BOUND_HT40)) {
1924                                 bb_spur = cur_bb_spur;
1925                                 break;
1926                         }
1927                 } else if ((cur_bb_spur > -AR_SPUR_FEEQ_BOUND_HT20) &&
1928                            (cur_bb_spur < AR_SPUR_FEEQ_BOUND_HT20)) {
1929                         bb_spur = cur_bb_spur;
1930                         break;
1931                 }
1932         }
1933
1934         if (AR_NO_SPUR == bb_spur) {
1935                 REG_CLR_BIT(ah, AR_PHY_FORCE_CLKEN_CCK,
1936                             AR_PHY_FORCE_CLKEN_CCK_MRC_MUX);
1937                 return;
1938         } else {
1939                 REG_CLR_BIT(ah, AR_PHY_FORCE_CLKEN_CCK,
1940                             AR_PHY_FORCE_CLKEN_CCK_MRC_MUX);
1941         }
1942
1943         bin = bb_spur * 320;
1944
1945         tmp = REG_READ(ah, AR_PHY_TIMING_CTRL4(0));
1946
1947         newVal = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
1948                         AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
1949                         AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
1950                         AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
1951         REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), newVal);
1952
1953         newVal = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
1954                   AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
1955                   AR_PHY_SPUR_REG_MASK_RATE_SELECT |
1956                   AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
1957                   SM(SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
1958         REG_WRITE(ah, AR_PHY_SPUR_REG, newVal);
1959
1960         if (IS_CHAN_HT40(chan)) {
1961                 if (bb_spur < 0) {
1962                         spur_subchannel_sd = 1;
1963                         bb_spur_off = bb_spur + 10;
1964                 } else {
1965                         spur_subchannel_sd = 0;
1966                         bb_spur_off = bb_spur - 10;
1967                 }
1968         } else {
1969                 spur_subchannel_sd = 0;
1970                 bb_spur_off = bb_spur;
1971         }
1972
1973         if (IS_CHAN_HT40(chan))
1974                 spur_delta_phase =
1975                         ((bb_spur * 262144) /
1976                          10) & AR_PHY_TIMING11_SPUR_DELTA_PHASE;
1977         else
1978                 spur_delta_phase =
1979                         ((bb_spur * 524288) /
1980                          10) & AR_PHY_TIMING11_SPUR_DELTA_PHASE;
1981
1982         denominator = IS_CHAN_2GHZ(chan) ? 44 : 40;
1983         spur_freq_sd = ((bb_spur_off * 2048) / denominator) & 0x3ff;
1984
1985         newVal = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
1986                   SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
1987                   SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
1988         REG_WRITE(ah, AR_PHY_TIMING11, newVal);
1989
1990         newVal = spur_subchannel_sd << AR_PHY_SFCORR_SPUR_SUBCHNL_SD_S;
1991         REG_WRITE(ah, AR_PHY_SFCORR_EXT, newVal);
1992
1993         cur_bin = -6000;
1994         upper = bin + 100;
1995         lower = bin - 100;
1996
1997         for (i = 0; i < 4; i++) {
1998                 int pilot_mask = 0;
1999                 int chan_mask = 0;
2000                 int bp = 0;
2001                 for (bp = 0; bp < 30; bp++) {
2002                         if ((cur_bin > lower) && (cur_bin < upper)) {
2003                                 pilot_mask = pilot_mask | 0x1 << bp;
2004                                 chan_mask = chan_mask | 0x1 << bp;
2005                         }
2006                         cur_bin += 100;
2007                 }
2008                 cur_bin += inc[i];
2009                 REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
2010                 REG_WRITE(ah, chan_mask_reg[i], chan_mask);
2011         }
2012
2013         cur_vit_mask = 6100;
2014         upper = bin + 120;
2015         lower = bin - 120;
2016
2017         for (i = 0; i < 123; i++) {
2018                 if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
2019
2020                         /* workaround for gcc bug #37014 */
2021                         volatile int tmp_v = abs(cur_vit_mask - bin);
2022
2023                         if (tmp_v < 75)
2024                                 mask_amt = 1;
2025                         else
2026                                 mask_amt = 0;
2027                         if (cur_vit_mask < 0)
2028                                 mask_m[abs(cur_vit_mask / 100)] = mask_amt;
2029                         else
2030                                 mask_p[cur_vit_mask / 100] = mask_amt;
2031                 }
2032                 cur_vit_mask -= 100;
2033         }
2034
2035         tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
2036                 | (mask_m[48] << 26) | (mask_m[49] << 24)
2037                 | (mask_m[50] << 22) | (mask_m[51] << 20)
2038                 | (mask_m[52] << 18) | (mask_m[53] << 16)
2039                 | (mask_m[54] << 14) | (mask_m[55] << 12)
2040                 | (mask_m[56] << 10) | (mask_m[57] << 8)
2041                 | (mask_m[58] << 6) | (mask_m[59] << 4)
2042                 | (mask_m[60] << 2) | (mask_m[61] << 0);
2043         REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
2044         REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
2045
2046         tmp_mask = (mask_m[31] << 28)
2047                 | (mask_m[32] << 26) | (mask_m[33] << 24)
2048                 | (mask_m[34] << 22) | (mask_m[35] << 20)
2049                 | (mask_m[36] << 18) | (mask_m[37] << 16)
2050                 | (mask_m[48] << 14) | (mask_m[39] << 12)
2051                 | (mask_m[40] << 10) | (mask_m[41] << 8)
2052                 | (mask_m[42] << 6) | (mask_m[43] << 4)
2053                 | (mask_m[44] << 2) | (mask_m[45] << 0);
2054         REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
2055         REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
2056
2057         tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
2058                 | (mask_m[18] << 26) | (mask_m[18] << 24)
2059                 | (mask_m[20] << 22) | (mask_m[20] << 20)
2060                 | (mask_m[22] << 18) | (mask_m[22] << 16)
2061                 | (mask_m[24] << 14) | (mask_m[24] << 12)
2062                 | (mask_m[25] << 10) | (mask_m[26] << 8)
2063                 | (mask_m[27] << 6) | (mask_m[28] << 4)
2064                 | (mask_m[29] << 2) | (mask_m[30] << 0);
2065         REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
2066         REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
2067
2068         tmp_mask = (mask_m[0] << 30) | (mask_m[1] << 28)
2069                 | (mask_m[2] << 26) | (mask_m[3] << 24)
2070                 | (mask_m[4] << 22) | (mask_m[5] << 20)
2071                 | (mask_m[6] << 18) | (mask_m[7] << 16)
2072                 | (mask_m[8] << 14) | (mask_m[9] << 12)
2073                 | (mask_m[10] << 10) | (mask_m[11] << 8)
2074                 | (mask_m[12] << 6) | (mask_m[13] << 4)
2075                 | (mask_m[14] << 2) | (mask_m[15] << 0);
2076         REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
2077         REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
2078
2079         tmp_mask = (mask_p[15] << 28)
2080                 | (mask_p[14] << 26) | (mask_p[13] << 24)
2081                 | (mask_p[12] << 22) | (mask_p[11] << 20)
2082                 | (mask_p[10] << 18) | (mask_p[9] << 16)
2083                 | (mask_p[8] << 14) | (mask_p[7] << 12)
2084                 | (mask_p[6] << 10) | (mask_p[5] << 8)
2085                 | (mask_p[4] << 6) | (mask_p[3] << 4)
2086                 | (mask_p[2] << 2) | (mask_p[1] << 0);
2087         REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
2088         REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
2089
2090         tmp_mask = (mask_p[30] << 28)
2091                 | (mask_p[29] << 26) | (mask_p[28] << 24)
2092                 | (mask_p[27] << 22) | (mask_p[26] << 20)
2093                 | (mask_p[25] << 18) | (mask_p[24] << 16)
2094                 | (mask_p[23] << 14) | (mask_p[22] << 12)
2095                 | (mask_p[21] << 10) | (mask_p[20] << 8)
2096                 | (mask_p[19] << 6) | (mask_p[18] << 4)
2097                 | (mask_p[17] << 2) | (mask_p[16] << 0);
2098         REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
2099         REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
2100
2101         tmp_mask = (mask_p[45] << 28)
2102                 | (mask_p[44] << 26) | (mask_p[43] << 24)
2103                 | (mask_p[42] << 22) | (mask_p[41] << 20)
2104                 | (mask_p[40] << 18) | (mask_p[39] << 16)
2105                 | (mask_p[38] << 14) | (mask_p[37] << 12)
2106                 | (mask_p[36] << 10) | (mask_p[35] << 8)
2107                 | (mask_p[34] << 6) | (mask_p[33] << 4)
2108                 | (mask_p[32] << 2) | (mask_p[31] << 0);
2109         REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
2110         REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
2111
2112         tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
2113                 | (mask_p[59] << 26) | (mask_p[58] << 24)
2114                 | (mask_p[57] << 22) | (mask_p[56] << 20)
2115                 | (mask_p[55] << 18) | (mask_p[54] << 16)
2116                 | (mask_p[53] << 14) | (mask_p[52] << 12)
2117                 | (mask_p[51] << 10) | (mask_p[50] << 8)
2118                 | (mask_p[49] << 6) | (mask_p[48] << 4)
2119                 | (mask_p[47] << 2) | (mask_p[46] << 0);
2120         REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
2121         REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
2122 }
2123
2124 static void ath9k_hw_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan)
2125 {
2126         int bb_spur = AR_NO_SPUR;
2127         int bin, cur_bin;
2128         int spur_freq_sd;
2129         int spur_delta_phase;
2130         int denominator;
2131         int upper, lower, cur_vit_mask;
2132         int tmp, new;
2133         int i;
2134         int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
2135                           AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
2136         };
2137         int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
2138                          AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
2139         };
2140         int inc[4] = { 0, 100, 0, 0 };
2141
2142         int8_t mask_m[123];
2143         int8_t mask_p[123];
2144         int8_t mask_amt;
2145         int tmp_mask;
2146         int cur_bb_spur;
2147         bool is2GHz = IS_CHAN_2GHZ(chan);
2148
2149         memset(&mask_m, 0, sizeof(int8_t) * 123);
2150         memset(&mask_p, 0, sizeof(int8_t) * 123);
2151
2152         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
2153                 cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
2154                 if (AR_NO_SPUR == cur_bb_spur)
2155                         break;
2156                 cur_bb_spur = cur_bb_spur - (chan->channel * 10);
2157                 if ((cur_bb_spur > -95) && (cur_bb_spur < 95)) {
2158                         bb_spur = cur_bb_spur;
2159                         break;
2160                 }
2161         }
2162
2163         if (AR_NO_SPUR == bb_spur)
2164                 return;
2165
2166         bin = bb_spur * 32;
2167
2168         tmp = REG_READ(ah, AR_PHY_TIMING_CTRL4(0));
2169         new = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
2170                      AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
2171                      AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
2172                      AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
2173
2174         REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), new);
2175
2176         new = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
2177                AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
2178                AR_PHY_SPUR_REG_MASK_RATE_SELECT |
2179                AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
2180                SM(SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
2181         REG_WRITE(ah, AR_PHY_SPUR_REG, new);
2182
2183         spur_delta_phase = ((bb_spur * 524288) / 100) &
2184                 AR_PHY_TIMING11_SPUR_DELTA_PHASE;
2185
2186         denominator = IS_CHAN_2GHZ(chan) ? 440 : 400;
2187         spur_freq_sd = ((bb_spur * 2048) / denominator) & 0x3ff;
2188
2189         new = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
2190                SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
2191                SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
2192         REG_WRITE(ah, AR_PHY_TIMING11, new);
2193
2194         cur_bin = -6000;
2195         upper = bin + 100;
2196         lower = bin - 100;
2197
2198         for (i = 0; i < 4; i++) {
2199                 int pilot_mask = 0;
2200                 int chan_mask = 0;
2201                 int bp = 0;
2202                 for (bp = 0; bp < 30; bp++) {
2203                         if ((cur_bin > lower) && (cur_bin < upper)) {
2204                                 pilot_mask = pilot_mask | 0x1 << bp;
2205                                 chan_mask = chan_mask | 0x1 << bp;
2206                         }
2207                         cur_bin += 100;
2208                 }
2209                 cur_bin += inc[i];
2210                 REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
2211                 REG_WRITE(ah, chan_mask_reg[i], chan_mask);
2212         }
2213
2214         cur_vit_mask = 6100;
2215         upper = bin + 120;
2216         lower = bin - 120;
2217
2218         for (i = 0; i < 123; i++) {
2219                 if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
2220
2221                         /* workaround for gcc bug #37014 */
2222                         volatile int tmp_v = abs(cur_vit_mask - bin);
2223
2224                         if (tmp_v < 75)
2225                                 mask_amt = 1;
2226                         else
2227                                 mask_amt = 0;
2228                         if (cur_vit_mask < 0)
2229                                 mask_m[abs(cur_vit_mask / 100)] = mask_amt;
2230                         else
2231                                 mask_p[cur_vit_mask / 100] = mask_amt;
2232                 }
2233                 cur_vit_mask -= 100;
2234         }
2235
2236         tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
2237                 | (mask_m[48] << 26) | (mask_m[49] << 24)
2238                 | (mask_m[50] << 22) | (mask_m[51] << 20)
2239                 | (mask_m[52] << 18) | (mask_m[53] << 16)
2240                 | (mask_m[54] << 14) | (mask_m[55] << 12)
2241                 | (mask_m[56] << 10) | (mask_m[57] << 8)
2242                 | (mask_m[58] << 6) | (mask_m[59] << 4)
2243                 | (mask_m[60] << 2) | (mask_m[61] << 0);
2244         REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
2245         REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
2246
2247         tmp_mask = (mask_m[31] << 28)
2248                 | (mask_m[32] << 26) | (mask_m[33] << 24)
2249                 | (mask_m[34] << 22) | (mask_m[35] << 20)
2250                 | (mask_m[36] << 18) | (mask_m[37] << 16)
2251                 | (mask_m[48] << 14) | (mask_m[39] << 12)
2252                 | (mask_m[40] << 10) | (mask_m[41] << 8)
2253                 | (mask_m[42] << 6) | (mask_m[43] << 4)
2254                 | (mask_m[44] << 2) | (mask_m[45] << 0);
2255         REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
2256         REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
2257
2258         tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
2259                 | (mask_m[18] << 26) | (mask_m[18] << 24)
2260                 | (mask_m[20] << 22) | (mask_m[20] << 20)
2261                 | (mask_m[22] << 18) | (mask_m[22] << 16)
2262                 | (mask_m[24] << 14) | (mask_m[24] << 12)
2263                 | (mask_m[25] << 10) | (mask_m[26] << 8)
2264                 | (mask_m[27] << 6) | (mask_m[28] << 4)
2265                 | (mask_m[29] << 2) | (mask_m[30] << 0);
2266         REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
2267         REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
2268
2269         tmp_mask = (mask_m[0] << 30) | (mask_m[1] << 28)
2270                 | (mask_m[2] << 26) | (mask_m[3] << 24)
2271                 | (mask_m[4] << 22) | (mask_m[5] << 20)
2272                 | (mask_m[6] << 18) | (mask_m[7] << 16)
2273                 | (mask_m[8] << 14) | (mask_m[9] << 12)
2274                 | (mask_m[10] << 10) | (mask_m[11] << 8)
2275                 | (mask_m[12] << 6) | (mask_m[13] << 4)
2276                 | (mask_m[14] << 2) | (mask_m[15] << 0);
2277         REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
2278         REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
2279
2280         tmp_mask = (mask_p[15] << 28)
2281                 | (mask_p[14] << 26) | (mask_p[13] << 24)
2282                 | (mask_p[12] << 22) | (mask_p[11] << 20)
2283                 | (mask_p[10] << 18) | (mask_p[9] << 16)
2284                 | (mask_p[8] << 14) | (mask_p[7] << 12)
2285                 | (mask_p[6] << 10) | (mask_p[5] << 8)
2286                 | (mask_p[4] << 6) | (mask_p[3] << 4)
2287                 | (mask_p[2] << 2) | (mask_p[1] << 0);
2288         REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
2289         REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
2290
2291         tmp_mask = (mask_p[30] << 28)
2292                 | (mask_p[29] << 26) | (mask_p[28] << 24)
2293                 | (mask_p[27] << 22) | (mask_p[26] << 20)
2294                 | (mask_p[25] << 18) | (mask_p[24] << 16)
2295                 | (mask_p[23] << 14) | (mask_p[22] << 12)
2296                 | (mask_p[21] << 10) | (mask_p[20] << 8)
2297                 | (mask_p[19] << 6) | (mask_p[18] << 4)
2298                 | (mask_p[17] << 2) | (mask_p[16] << 0);
2299         REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
2300         REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
2301
2302         tmp_mask = (mask_p[45] << 28)
2303                 | (mask_p[44] << 26) | (mask_p[43] << 24)
2304                 | (mask_p[42] << 22) | (mask_p[41] << 20)
2305                 | (mask_p[40] << 18) | (mask_p[39] << 16)
2306                 | (mask_p[38] << 14) | (mask_p[37] << 12)
2307                 | (mask_p[36] << 10) | (mask_p[35] << 8)
2308                 | (mask_p[34] << 6) | (mask_p[33] << 4)
2309                 | (mask_p[32] << 2) | (mask_p[31] << 0);
2310         REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
2311         REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
2312
2313         tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
2314                 | (mask_p[59] << 26) | (mask_p[58] << 24)
2315                 | (mask_p[57] << 22) | (mask_p[56] << 20)
2316                 | (mask_p[55] << 18) | (mask_p[54] << 16)
2317                 | (mask_p[53] << 14) | (mask_p[52] << 12)
2318                 | (mask_p[51] << 10) | (mask_p[50] << 8)
2319                 | (mask_p[49] << 6) | (mask_p[48] << 4)
2320                 | (mask_p[47] << 2) | (mask_p[46] << 0);
2321         REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
2322         REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
2323 }
2324
2325 static void ath9k_enable_rfkill(struct ath_hw *ah)
2326 {
2327         REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
2328                     AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
2329
2330         REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
2331                     AR_GPIO_INPUT_MUX2_RFSILENT);
2332
2333         ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
2334         REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
2335 }
2336
2337 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
2338                     bool bChannelChange)
2339 {
2340         u32 saveLedState;
2341         struct ath_softc *sc = ah->ah_sc;
2342         struct ath9k_channel *curchan = ah->curchan;
2343         u32 saveDefAntenna;
2344         u32 macStaId1;
2345         int i, rx_chainmask, r;
2346
2347         ah->extprotspacing = sc->ht_extprotspacing;
2348         ah->txchainmask = sc->tx_chainmask;
2349         ah->rxchainmask = sc->rx_chainmask;
2350
2351         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2352                 return -EIO;
2353
2354         if (curchan)
2355                 ath9k_hw_getnf(ah, curchan);
2356
2357         if (bChannelChange &&
2358             (ah->chip_fullsleep != true) &&
2359             (ah->curchan != NULL) &&
2360             (chan->channel != ah->curchan->channel) &&
2361             ((chan->channelFlags & CHANNEL_ALL) ==
2362              (ah->curchan->channelFlags & CHANNEL_ALL)) &&
2363             (!AR_SREV_9280(ah) || (!IS_CHAN_A_5MHZ_SPACED(chan) &&
2364                                    !IS_CHAN_A_5MHZ_SPACED(ah->curchan)))) {
2365
2366                 if (ath9k_hw_channel_change(ah, chan, sc->tx_chan_width)) {
2367                         ath9k_hw_loadnf(ah, ah->curchan);
2368                         ath9k_hw_start_nfcal(ah);
2369                         return 0;
2370                 }
2371         }
2372
2373         saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
2374         if (saveDefAntenna == 0)
2375                 saveDefAntenna = 1;
2376
2377         macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
2378
2379         saveLedState = REG_READ(ah, AR_CFG_LED) &
2380                 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
2381                  AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
2382
2383         ath9k_hw_mark_phy_inactive(ah);
2384
2385         if (AR_SREV_9271(ah) && ah->htc_reset_init) {
2386                 REG_WRITE(ah,
2387                           AR9271_RESET_POWER_DOWN_CONTROL,
2388                           AR9271_RADIO_RF_RST);
2389                 udelay(50);
2390         }
2391
2392         if (!ath9k_hw_chip_reset(ah, chan)) {
2393                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL, "Chip reset failed\n");
2394                 return -EINVAL;
2395         }
2396
2397         if (AR_SREV_9271(ah) && ah->htc_reset_init) {
2398                 ah->htc_reset_init = false;
2399                 REG_WRITE(ah,
2400                           AR9271_RESET_POWER_DOWN_CONTROL,
2401                           AR9271_GATE_MAC_CTL);
2402                 udelay(50);
2403         }
2404
2405         if (AR_SREV_9280_10_OR_LATER(ah))
2406                 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
2407
2408         if (AR_SREV_9287_12_OR_LATER(ah)) {
2409                 /* Enable ASYNC FIFO */
2410                 REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
2411                                 AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
2412                 REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
2413                 REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
2414                                 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
2415                 REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
2416                                 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
2417         }
2418         r = ath9k_hw_process_ini(ah, chan, sc->tx_chan_width);
2419         if (r)
2420                 return r;
2421
2422         /* Setup MFP options for CCMP */
2423         if (AR_SREV_9280_20_OR_LATER(ah)) {
2424                 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
2425                  * frames when constructing CCMP AAD. */
2426                 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
2427                               0xc7ff);
2428                 ah->sw_mgmt_crypto = false;
2429         } else if (AR_SREV_9160_10_OR_LATER(ah)) {
2430                 /* Disable hardware crypto for management frames */
2431                 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
2432                             AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
2433                 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
2434                             AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
2435                 ah->sw_mgmt_crypto = true;
2436         } else
2437                 ah->sw_mgmt_crypto = true;
2438
2439         if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
2440                 ath9k_hw_set_delta_slope(ah, chan);
2441
2442         if (AR_SREV_9280_10_OR_LATER(ah))
2443                 ath9k_hw_9280_spur_mitigate(ah, chan);
2444         else
2445                 ath9k_hw_spur_mitigate(ah, chan);
2446
2447         ah->eep_ops->set_board_values(ah, chan);
2448
2449         ath9k_hw_decrease_chain_power(ah, chan);
2450
2451         REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(ah->macaddr));
2452         REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(ah->macaddr + 4)
2453                   | macStaId1
2454                   | AR_STA_ID1_RTS_USE_DEF
2455                   | (ah->config.
2456                      ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
2457                   | ah->sta_id1_defaults);
2458         ath9k_hw_set_operating_mode(ah, ah->opmode);
2459
2460         REG_WRITE(ah, AR_BSSMSKL, get_unaligned_le32(sc->bssidmask));
2461         REG_WRITE(ah, AR_BSSMSKU, get_unaligned_le16(sc->bssidmask + 4));
2462
2463         REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
2464
2465         REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(sc->curbssid));
2466         REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(sc->curbssid + 4) |
2467                   ((sc->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2468
2469         REG_WRITE(ah, AR_ISR, ~0);
2470
2471         REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
2472
2473         if (AR_SREV_9280_10_OR_LATER(ah))
2474                 ath9k_hw_ar9280_set_channel(ah, chan);
2475         else
2476                 if (!(ath9k_hw_set_channel(ah, chan)))
2477                         return -EIO;
2478
2479         for (i = 0; i < AR_NUM_DCU; i++)
2480                 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
2481
2482         ah->intr_txqs = 0;
2483         for (i = 0; i < ah->caps.total_queues; i++)
2484                 ath9k_hw_resettxqueue(ah, i);
2485
2486         ath9k_hw_init_interrupt_masks(ah, ah->opmode);
2487         ath9k_hw_init_qos(ah);
2488
2489         if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
2490                 ath9k_enable_rfkill(ah);
2491
2492         ath9k_hw_init_user_settings(ah);
2493
2494         if (AR_SREV_9287_12_OR_LATER(ah)) {
2495                 REG_WRITE(ah, AR_D_GBL_IFS_SIFS,
2496                           AR_D_GBL_IFS_SIFS_ASYNC_FIFO_DUR);
2497                 REG_WRITE(ah, AR_D_GBL_IFS_SLOT,
2498                           AR_D_GBL_IFS_SLOT_ASYNC_FIFO_DUR);
2499                 REG_WRITE(ah, AR_D_GBL_IFS_EIFS,
2500                           AR_D_GBL_IFS_EIFS_ASYNC_FIFO_DUR);
2501
2502                 REG_WRITE(ah, AR_TIME_OUT, AR_TIME_OUT_ACK_CTS_ASYNC_FIFO_DUR);
2503                 REG_WRITE(ah, AR_USEC, AR_USEC_ASYNC_FIFO_DUR);
2504
2505                 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
2506                             AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
2507                 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
2508                               AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
2509         }
2510         if (AR_SREV_9287_12_OR_LATER(ah)) {
2511                 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
2512                                 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
2513         }
2514
2515         REG_WRITE(ah, AR_STA_ID1,
2516                   REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
2517
2518         ath9k_hw_set_dma(ah);
2519
2520         REG_WRITE(ah, AR_OBS, 8);
2521
2522         if (ah->config.intr_mitigation) {
2523                 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
2524                 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
2525         }
2526
2527         ath9k_hw_init_bb(ah, chan);
2528
2529         if (!ath9k_hw_init_cal(ah, chan))
2530                 return -EIO;
2531
2532         rx_chainmask = ah->rxchainmask;
2533         if ((rx_chainmask == 0x5) || (rx_chainmask == 0x3)) {
2534                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
2535                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
2536         }
2537
2538         REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
2539
2540         /*
2541          * For big endian systems turn on swapping for descriptors
2542          */
2543         if (AR_SREV_9100(ah)) {
2544                 u32 mask;
2545                 mask = REG_READ(ah, AR_CFG);
2546                 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
2547                         DPRINTF(ah->ah_sc, ATH_DBG_RESET,
2548                                 "CFG Byte Swap Set 0x%x\n", mask);
2549                 } else {
2550                         mask =
2551                                 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
2552                         REG_WRITE(ah, AR_CFG, mask);
2553                         DPRINTF(ah->ah_sc, ATH_DBG_RESET,
2554                                 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
2555                 }
2556         } else {
2557                 /* Configure AR9271 target WLAN */
2558                 if (AR_SREV_9271(ah))
2559                         REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
2560 #ifdef __BIG_ENDIAN
2561                 else
2562                         REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
2563 #endif
2564         }
2565
2566         if (ah->ah_sc->sc_flags & SC_OP_BTCOEX_ENABLED)
2567                 ath9k_hw_btcoex_enable(ah);
2568
2569         return 0;
2570 }
2571
2572 /************************/
2573 /* Key Cache Management */
2574 /************************/
2575
2576 bool ath9k_hw_keyreset(struct ath_hw *ah, u16 entry)
2577 {
2578         u32 keyType;
2579
2580         if (entry >= ah->caps.keycache_size) {
2581                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
2582                         "keychache entry %u out of range\n", entry);
2583                 return false;
2584         }
2585
2586         keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
2587
2588         REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
2589         REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
2590         REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
2591         REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
2592         REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
2593         REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
2594         REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
2595         REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
2596
2597         if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
2598                 u16 micentry = entry + 64;
2599
2600                 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
2601                 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
2602                 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
2603                 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
2604
2605         }
2606
2607         return true;
2608 }
2609
2610 bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
2611 {
2612         u32 macHi, macLo;
2613
2614         if (entry >= ah->caps.keycache_size) {
2615                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
2616                         "keychache entry %u out of range\n", entry);
2617                 return false;
2618         }
2619
2620         if (mac != NULL) {
2621                 macHi = (mac[5] << 8) | mac[4];
2622                 macLo = (mac[3] << 24) |
2623                         (mac[2] << 16) |
2624                         (mac[1] << 8) |
2625                         mac[0];
2626                 macLo >>= 1;
2627                 macLo |= (macHi & 1) << 31;
2628                 macHi >>= 1;
2629         } else {
2630                 macLo = macHi = 0;
2631         }
2632         REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
2633         REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | AR_KEYTABLE_VALID);
2634
2635         return true;
2636 }
2637
2638 bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
2639                                  const struct ath9k_keyval *k,
2640                                  const u8 *mac)
2641 {
2642         const struct ath9k_hw_capabilities *pCap = &ah->caps;
2643         u32 key0, key1, key2, key3, key4;
2644         u32 keyType;
2645
2646         if (entry >= pCap->keycache_size) {
2647                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
2648                         "keycache entry %u out of range\n", entry);
2649                 return false;
2650         }
2651
2652         switch (k->kv_type) {
2653         case ATH9K_CIPHER_AES_OCB:
2654                 keyType = AR_KEYTABLE_TYPE_AES;
2655                 break;
2656         case ATH9K_CIPHER_AES_CCM:
2657                 if (!(pCap->hw_caps & ATH9K_HW_CAP_CIPHER_AESCCM)) {
2658                         DPRINTF(ah->ah_sc, ATH_DBG_ANY,
2659                                 "AES-CCM not supported by mac rev 0x%x\n",
2660                                 ah->hw_version.macRev);
2661                         return false;
2662                 }
2663                 keyType = AR_KEYTABLE_TYPE_CCM;
2664                 break;
2665         case ATH9K_CIPHER_TKIP:
2666                 keyType = AR_KEYTABLE_TYPE_TKIP;
2667                 if (ATH9K_IS_MIC_ENABLED(ah)
2668                     && entry + 64 >= pCap->keycache_size) {
2669                         DPRINTF(ah->ah_sc, ATH_DBG_ANY,
2670                                 "entry %u inappropriate for TKIP\n", entry);
2671                         return false;
2672                 }
2673                 break;
2674         case ATH9K_CIPHER_WEP:
2675                 if (k->kv_len < WLAN_KEY_LEN_WEP40) {
2676                         DPRINTF(ah->ah_sc, ATH_DBG_ANY,
2677                                 "WEP key length %u too small\n", k->kv_len);
2678                         return false;
2679                 }
2680                 if (k->kv_len <= WLAN_KEY_LEN_WEP40)
2681                         keyType = AR_KEYTABLE_TYPE_40;
2682                 else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
2683                         keyType = AR_KEYTABLE_TYPE_104;
2684                 else
2685                         keyType = AR_KEYTABLE_TYPE_128;
2686                 break;
2687         case ATH9K_CIPHER_CLR:
2688                 keyType = AR_KEYTABLE_TYPE_CLR;
2689                 break;
2690         default:
2691                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
2692                         "cipher %u not supported\n", k->kv_type);
2693                 return false;
2694         }
2695
2696         key0 = get_unaligned_le32(k->kv_val + 0);
2697         key1 = get_unaligned_le16(k->kv_val + 4);
2698         key2 = get_unaligned_le32(k->kv_val + 6);
2699         key3 = get_unaligned_le16(k->kv_val + 10);
2700         key4 = get_unaligned_le32(k->kv_val + 12);
2701         if (k->kv_len <= WLAN_KEY_LEN_WEP104)
2702                 key4 &= 0xff;
2703
2704         /*
2705          * Note: Key cache registers access special memory area that requires
2706          * two 32-bit writes to actually update the values in the internal
2707          * memory. Consequently, the exact order and pairs used here must be
2708          * maintained.
2709          */
2710
2711         if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
2712                 u16 micentry = entry + 64;
2713
2714                 /*
2715                  * Write inverted key[47:0] first to avoid Michael MIC errors
2716                  * on frames that could be sent or received at the same time.
2717                  * The correct key will be written in the end once everything
2718                  * else is ready.
2719                  */
2720                 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), ~key0);
2721                 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), ~key1);
2722
2723                 /* Write key[95:48] */
2724                 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
2725                 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
2726
2727                 /* Write key[127:96] and key type */
2728                 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
2729                 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
2730
2731                 /* Write MAC address for the entry */
2732                 (void) ath9k_hw_keysetmac(ah, entry, mac);
2733
2734                 if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) {
2735                         /*
2736                          * TKIP uses two key cache entries:
2737                          * Michael MIC TX/RX keys in the same key cache entry
2738                          * (idx = main index + 64):
2739                          * key0 [31:0] = RX key [31:0]
2740                          * key1 [15:0] = TX key [31:16]
2741                          * key1 [31:16] = reserved
2742                          * key2 [31:0] = RX key [63:32]
2743                          * key3 [15:0] = TX key [15:0]
2744                          * key3 [31:16] = reserved
2745                          * key4 [31:0] = TX key [63:32]
2746                          */
2747                         u32 mic0, mic1, mic2, mic3, mic4;
2748
2749                         mic0 = get_unaligned_le32(k->kv_mic + 0);
2750                         mic2 = get_unaligned_le32(k->kv_mic + 4);
2751                         mic1 = get_unaligned_le16(k->kv_txmic + 2) & 0xffff;
2752                         mic3 = get_unaligned_le16(k->kv_txmic + 0) & 0xffff;
2753                         mic4 = get_unaligned_le32(k->kv_txmic + 4);
2754
2755                         /* Write RX[31:0] and TX[31:16] */
2756                         REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
2757                         REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), mic1);
2758
2759                         /* Write RX[63:32] and TX[15:0] */
2760                         REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
2761                         REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), mic3);
2762
2763                         /* Write TX[63:32] and keyType(reserved) */
2764                         REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), mic4);
2765                         REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
2766                                   AR_KEYTABLE_TYPE_CLR);
2767
2768                 } else {
2769                         /*
2770                          * TKIP uses four key cache entries (two for group
2771                          * keys):
2772                          * Michael MIC TX/RX keys are in different key cache
2773                          * entries (idx = main index + 64 for TX and
2774                          * main index + 32 + 96 for RX):
2775                          * key0 [31:0] = TX/RX MIC key [31:0]
2776                          * key1 [31:0] = reserved
2777                          * key2 [31:0] = TX/RX MIC key [63:32]
2778                          * key3 [31:0] = reserved
2779                          * key4 [31:0] = reserved
2780                          *
2781                          * Upper layer code will call this function separately
2782                          * for TX and RX keys when these registers offsets are
2783                          * used.
2784                          */
2785                         u32 mic0, mic2;
2786
2787                         mic0 = get_unaligned_le32(k->kv_mic + 0);
2788                         mic2 = get_unaligned_le32(k->kv_mic + 4);
2789
2790                         /* Write MIC key[31:0] */
2791                         REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
2792                         REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
2793
2794                         /* Write MIC key[63:32] */
2795                         REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
2796                         REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
2797
2798                         /* Write TX[63:32] and keyType(reserved) */
2799                         REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
2800                         REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
2801                                   AR_KEYTABLE_TYPE_CLR);
2802                 }
2803
2804                 /* MAC address registers are reserved for the MIC entry */
2805                 REG_WRITE(ah, AR_KEYTABLE_MAC0(micentry), 0);
2806                 REG_WRITE(ah, AR_KEYTABLE_MAC1(micentry), 0);
2807
2808                 /*
2809                  * Write the correct (un-inverted) key[47:0] last to enable
2810                  * TKIP now that all other registers are set with correct
2811                  * values.
2812                  */
2813                 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
2814                 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
2815         } else {
2816                 /* Write key[47:0] */
2817                 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
2818                 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
2819
2820                 /* Write key[95:48] */
2821                 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
2822                 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
2823
2824                 /* Write key[127:96] and key type */
2825                 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
2826                 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
2827
2828                 /* Write MAC address for the entry */
2829                 (void) ath9k_hw_keysetmac(ah, entry, mac);
2830         }
2831
2832         return true;
2833 }
2834
2835 bool ath9k_hw_keyisvalid(struct ath_hw *ah, u16 entry)
2836 {
2837         if (entry < ah->caps.keycache_size) {
2838                 u32 val = REG_READ(ah, AR_KEYTABLE_MAC1(entry));
2839                 if (val & AR_KEYTABLE_VALID)
2840                         return true;
2841         }
2842         return false;
2843 }
2844
2845 /******************************/
2846 /* Power Management (Chipset) */
2847 /******************************/
2848
2849 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
2850 {
2851         REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2852         if (setChip) {
2853                 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
2854                             AR_RTC_FORCE_WAKE_EN);
2855                 if (!AR_SREV_9100(ah))
2856                         REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
2857
2858                 REG_CLR_BIT(ah, (AR_RTC_RESET),
2859                             AR_RTC_RESET_EN);
2860         }
2861 }
2862
2863 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
2864 {
2865         REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2866         if (setChip) {
2867                 struct ath9k_hw_capabilities *pCap = &ah->caps;
2868
2869                 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
2870                         REG_WRITE(ah, AR_RTC_FORCE_WAKE,
2871                                   AR_RTC_FORCE_WAKE_ON_INT);
2872                 } else {
2873                         REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
2874                                     AR_RTC_FORCE_WAKE_EN);
2875                 }
2876         }
2877 }
2878
2879 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
2880 {
2881         u32 val;
2882         int i;
2883
2884         if (setChip) {
2885                 if ((REG_READ(ah, AR_RTC_STATUS) &
2886                      AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
2887                         if (ath9k_hw_set_reset_reg(ah,
2888                                            ATH9K_RESET_POWER_ON) != true) {
2889                                 return false;
2890                         }
2891                 }
2892                 if (AR_SREV_9100(ah))
2893                         REG_SET_BIT(ah, AR_RTC_RESET,
2894                                     AR_RTC_RESET_EN);
2895
2896                 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2897                             AR_RTC_FORCE_WAKE_EN);
2898                 udelay(50);
2899
2900                 for (i = POWER_UP_TIME / 50; i > 0; i--) {
2901                         val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
2902                         if (val == AR_RTC_STATUS_ON)
2903                                 break;
2904                         udelay(50);
2905                         REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2906                                     AR_RTC_FORCE_WAKE_EN);
2907                 }
2908                 if (i == 0) {
2909                         DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
2910                                 "Failed to wakeup in %uus\n", POWER_UP_TIME / 20);
2911                         return false;
2912                 }
2913         }
2914
2915         REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2916
2917         return true;
2918 }
2919
2920 static bool ath9k_hw_setpower_nolock(struct ath_hw *ah,
2921                                      enum ath9k_power_mode mode)
2922 {
2923         int status = true, setChip = true;
2924         static const char *modes[] = {
2925                 "AWAKE",
2926                 "FULL-SLEEP",
2927                 "NETWORK SLEEP",
2928                 "UNDEFINED"
2929         };
2930
2931         if (ah->power_mode == mode)
2932                 return status;
2933
2934         DPRINTF(ah->ah_sc, ATH_DBG_RESET, "%s -> %s\n",
2935                 modes[ah->power_mode], modes[mode]);
2936
2937         switch (mode) {
2938         case ATH9K_PM_AWAKE:
2939                 status = ath9k_hw_set_power_awake(ah, setChip);
2940                 break;
2941         case ATH9K_PM_FULL_SLEEP:
2942                 ath9k_set_power_sleep(ah, setChip);
2943                 ah->chip_fullsleep = true;
2944                 break;
2945         case ATH9K_PM_NETWORK_SLEEP:
2946                 ath9k_set_power_network_sleep(ah, setChip);
2947                 break;
2948         default:
2949                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
2950                         "Unknown power mode %u\n", mode);
2951                 return false;
2952         }
2953         ah->power_mode = mode;
2954
2955         return status;
2956 }
2957
2958 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
2959 {
2960         unsigned long flags;
2961         bool ret;
2962
2963         spin_lock_irqsave(&ah->ah_sc->sc_pm_lock, flags);
2964         ret = ath9k_hw_setpower_nolock(ah, mode);
2965         spin_unlock_irqrestore(&ah->ah_sc->sc_pm_lock, flags);
2966
2967         return ret;
2968 }
2969
2970 void ath9k_ps_wakeup(struct ath_softc *sc)
2971 {
2972         unsigned long flags;
2973
2974         spin_lock_irqsave(&sc->sc_pm_lock, flags);
2975         if (++sc->ps_usecount != 1)
2976                 goto unlock;
2977
2978         ath9k_hw_setpower_nolock(sc->sc_ah, ATH9K_PM_AWAKE);
2979
2980  unlock:
2981         spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
2982 }
2983
2984 void ath9k_ps_restore(struct ath_softc *sc)
2985 {
2986         unsigned long flags;
2987
2988         spin_lock_irqsave(&sc->sc_pm_lock, flags);
2989         if (--sc->ps_usecount != 0)
2990                 goto unlock;
2991
2992         if (sc->ps_enabled &&
2993             !(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON |
2994                               SC_OP_WAIT_FOR_CAB |
2995                               SC_OP_WAIT_FOR_PSPOLL_DATA |
2996                               SC_OP_WAIT_FOR_TX_ACK)))
2997                 ath9k_hw_setpower_nolock(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP);
2998
2999  unlock:
3000         spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
3001 }
3002
3003 /*
3004  * Helper for ASPM support.
3005  *
3006  * Disable PLL when in L0s as well as receiver clock when in L1.
3007  * This power saving option must be enabled through the SerDes.
3008  *
3009  * Programming the SerDes must go through the same 288 bit serial shift
3010  * register as the other analog registers.  Hence the 9 writes.
3011  */
3012 void ath9k_hw_configpcipowersave(struct ath_hw *ah, int restore)
3013 {
3014         u8 i;
3015
3016         if (ah->is_pciexpress != true)
3017                 return;
3018
3019         /* Do not touch SerDes registers */
3020         if (ah->config.pcie_powersave_enable == 2)
3021                 return;
3022
3023         /* Nothing to do on restore for 11N */
3024         if (restore)
3025                 return;
3026
3027         if (AR_SREV_9280_20_OR_LATER(ah)) {
3028                 /*
3029                  * AR9280 2.0 or later chips use SerDes values from the
3030                  * initvals.h initialized depending on chipset during
3031                  * ath9k_hw_init()
3032                  */
3033                 for (i = 0; i < ah->iniPcieSerdes.ia_rows; i++) {
3034                         REG_WRITE(ah, INI_RA(&ah->iniPcieSerdes, i, 0),
3035                                   INI_RA(&ah->iniPcieSerdes, i, 1));
3036                 }
3037         } else if (AR_SREV_9280(ah) &&
3038                    (ah->hw_version.macRev == AR_SREV_REVISION_9280_10)) {
3039                 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fd00);
3040                 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
3041
3042                 /* RX shut off when elecidle is asserted */
3043                 REG_WRITE(ah, AR_PCIE_SERDES, 0xa8000019);
3044                 REG_WRITE(ah, AR_PCIE_SERDES, 0x13160820);
3045                 REG_WRITE(ah, AR_PCIE_SERDES, 0xe5980560);
3046
3047                 /* Shut off CLKREQ active in L1 */
3048                 if (ah->config.pcie_clock_req)
3049                         REG_WRITE(ah, AR_PCIE_SERDES, 0x401deffc);
3050                 else
3051                         REG_WRITE(ah, AR_PCIE_SERDES, 0x401deffd);
3052
3053                 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
3054                 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
3055                 REG_WRITE(ah, AR_PCIE_SERDES, 0x00043007);
3056
3057                 /* Load the new settings */
3058                 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
3059
3060         } else {
3061                 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
3062                 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
3063
3064                 /* RX shut off when elecidle is asserted */
3065                 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000039);
3066                 REG_WRITE(ah, AR_PCIE_SERDES, 0x53160824);
3067                 REG_WRITE(ah, AR_PCIE_SERDES, 0xe5980579);
3068
3069                 /*
3070                  * Ignore ah->ah_config.pcie_clock_req setting for
3071                  * pre-AR9280 11n
3072                  */
3073                 REG_WRITE(ah, AR_PCIE_SERDES, 0x001defff);
3074
3075                 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
3076                 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
3077                 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e3007);
3078
3079                 /* Load the new settings */
3080                 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
3081         }
3082
3083         udelay(1000);
3084
3085         /* set bit 19 to allow forcing of pcie core into L1 state */
3086         REG_SET_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);
3087
3088         /* Several PCIe massages to ensure proper behaviour */
3089         if (ah->config.pcie_waen) {
3090                 REG_WRITE(ah, AR_WA, ah->config.pcie_waen);
3091         } else {
3092                 if (AR_SREV_9285(ah) || AR_SREV_9271(ah) || AR_SREV_9287(ah))
3093                         REG_WRITE(ah, AR_WA, AR9285_WA_DEFAULT);
3094                 /*
3095                  * On AR9280 chips bit 22 of 0x4004 needs to be set to
3096                  * otherwise card may disappear.
3097                  */
3098                 else if (AR_SREV_9280(ah))
3099                         REG_WRITE(ah, AR_WA, AR9280_WA_DEFAULT);
3100                 else
3101                         REG_WRITE(ah, AR_WA, AR_WA_DEFAULT);
3102         }
3103 }
3104
3105 /**********************/
3106 /* Interrupt Handling */
3107 /**********************/
3108
3109 bool ath9k_hw_intrpend(struct ath_hw *ah)
3110 {
3111         u32 host_isr;
3112
3113         if (AR_SREV_9100(ah))
3114                 return true;
3115
3116         host_isr = REG_READ(ah, AR_INTR_ASYNC_CAUSE);
3117         if ((host_isr & AR_INTR_MAC_IRQ) && (host_isr != AR_INTR_SPURIOUS))
3118                 return true;
3119
3120         host_isr = REG_READ(ah, AR_INTR_SYNC_CAUSE);
3121         if ((host_isr & AR_INTR_SYNC_DEFAULT)
3122             && (host_isr != AR_INTR_SPURIOUS))
3123                 return true;
3124
3125         return false;
3126 }
3127
3128 bool ath9k_hw_getisr(struct ath_hw *ah, enum ath9k_int *masked)
3129 {
3130         u32 isr = 0;
3131         u32 mask2 = 0;
3132         struct ath9k_hw_capabilities *pCap = &ah->caps;
3133         u32 sync_cause = 0;
3134         bool fatal_int = false;
3135
3136         if (!AR_SREV_9100(ah)) {
3137                 if (REG_READ(ah, AR_INTR_ASYNC_CAUSE) & AR_INTR_MAC_IRQ) {
3138                         if ((REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M)
3139                             == AR_RTC_STATUS_ON) {
3140                                 isr = REG_READ(ah, AR_ISR);
3141                         }
3142                 }
3143
3144                 sync_cause = REG_READ(ah, AR_INTR_SYNC_CAUSE) &
3145                         AR_INTR_SYNC_DEFAULT;
3146
3147                 *masked = 0;
3148
3149                 if (!isr && !sync_cause)
3150                         return false;
3151         } else {
3152                 *masked = 0;
3153                 isr = REG_READ(ah, AR_ISR);
3154         }
3155
3156         if (isr) {
3157                 if (isr & AR_ISR_BCNMISC) {
3158                         u32 isr2;
3159                         isr2 = REG_READ(ah, AR_ISR_S2);
3160                         if (isr2 & AR_ISR_S2_TIM)
3161                                 mask2 |= ATH9K_INT_TIM;
3162                         if (isr2 & AR_ISR_S2_DTIM)
3163                                 mask2 |= ATH9K_INT_DTIM;
3164                         if (isr2 & AR_ISR_S2_DTIMSYNC)
3165                                 mask2 |= ATH9K_INT_DTIMSYNC;
3166                         if (isr2 & (AR_ISR_S2_CABEND))
3167                                 mask2 |= ATH9K_INT_CABEND;
3168                         if (isr2 & AR_ISR_S2_GTT)
3169                                 mask2 |= ATH9K_INT_GTT;
3170                         if (isr2 & AR_ISR_S2_CST)
3171                                 mask2 |= ATH9K_INT_CST;
3172                         if (isr2 & AR_ISR_S2_TSFOOR)
3173                                 mask2 |= ATH9K_INT_TSFOOR;
3174                 }
3175
3176                 isr = REG_READ(ah, AR_ISR_RAC);
3177                 if (isr == 0xffffffff) {
3178                         *masked = 0;
3179                         return false;
3180                 }
3181
3182                 *masked = isr & ATH9K_INT_COMMON;
3183
3184                 if (ah->config.intr_mitigation) {
3185                         if (isr & (AR_ISR_RXMINTR | AR_ISR_RXINTM))
3186                                 *masked |= ATH9K_INT_RX;
3187                 }
3188
3189                 if (isr & (AR_ISR_RXOK | AR_ISR_RXERR))
3190                         *masked |= ATH9K_INT_RX;
3191                 if (isr &
3192                     (AR_ISR_TXOK | AR_ISR_TXDESC | AR_ISR_TXERR |
3193                      AR_ISR_TXEOL)) {
3194                         u32 s0_s, s1_s;
3195
3196                         *masked |= ATH9K_INT_TX;
3197
3198                         s0_s = REG_READ(ah, AR_ISR_S0_S);
3199                         ah->intr_txqs |= MS(s0_s, AR_ISR_S0_QCU_TXOK);
3200                         ah->intr_txqs |= MS(s0_s, AR_ISR_S0_QCU_TXDESC);
3201
3202                         s1_s = REG_READ(ah, AR_ISR_S1_S);
3203                         ah->intr_txqs |= MS(s1_s, AR_ISR_S1_QCU_TXERR);
3204                         ah->intr_txqs |= MS(s1_s, AR_ISR_S1_QCU_TXEOL);
3205                 }
3206
3207                 if (isr & AR_ISR_RXORN) {
3208                         DPRINTF(ah->ah_sc, ATH_DBG_INTERRUPT,
3209                                 "receive FIFO overrun interrupt\n");
3210                 }
3211
3212                 if (!AR_SREV_9100(ah)) {
3213                         if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
3214                                 u32 isr5 = REG_READ(ah, AR_ISR_S5_S);
3215                                 if (isr5 & AR_ISR_S5_TIM_TIMER)
3216                                         *masked |= ATH9K_INT_TIM_TIMER;
3217                         }
3218                 }
3219
3220                 *masked |= mask2;
3221         }
3222
3223         if (AR_SREV_9100(ah))
3224                 return true;
3225
3226         if (isr & AR_ISR_GENTMR) {
3227                 u32 s5_s;
3228
3229                 s5_s = REG_READ(ah, AR_ISR_S5_S);
3230                 if (isr & AR_ISR_GENTMR) {
3231                         ah->intr_gen_timer_trigger =
3232                                 MS(s5_s, AR_ISR_S5_GENTIMER_TRIG);
3233
3234                         ah->intr_gen_timer_thresh =
3235                                 MS(s5_s, AR_ISR_S5_GENTIMER_THRESH);
3236
3237                         if (ah->intr_gen_timer_trigger)
3238                                 *masked |= ATH9K_INT_GENTIMER;
3239
3240                 }
3241         }
3242
3243         if (sync_cause) {
3244                 fatal_int =
3245                         (sync_cause &
3246                          (AR_INTR_SYNC_HOST1_FATAL | AR_INTR_SYNC_HOST1_PERR))
3247                         ? true : false;
3248
3249                 if (fatal_int) {
3250                         if (sync_cause & AR_INTR_SYNC_HOST1_FATAL) {
3251                                 DPRINTF(ah->ah_sc, ATH_DBG_ANY,
3252                                         "received PCI FATAL interrupt\n");
3253                         }
3254                         if (sync_cause & AR_INTR_SYNC_HOST1_PERR) {
3255                                 DPRINTF(ah->ah_sc, ATH_DBG_ANY,
3256                                         "received PCI PERR interrupt\n");
3257                         }
3258                         *masked |= ATH9K_INT_FATAL;
3259                 }
3260                 if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT) {
3261                         DPRINTF(ah->ah_sc, ATH_DBG_INTERRUPT,
3262                                 "AR_INTR_SYNC_RADM_CPL_TIMEOUT\n");
3263                         REG_WRITE(ah, AR_RC, AR_RC_HOSTIF);
3264                         REG_WRITE(ah, AR_RC, 0);
3265                         *masked |= ATH9K_INT_FATAL;
3266                 }
3267                 if (sync_cause & AR_INTR_SYNC_LOCAL_TIMEOUT) {
3268                         DPRINTF(ah->ah_sc, ATH_DBG_INTERRUPT,
3269                                 "AR_INTR_SYNC_LOCAL_TIMEOUT\n");
3270                 }
3271
3272                 REG_WRITE(ah, AR_INTR_SYNC_CAUSE_CLR, sync_cause);
3273                 (void) REG_READ(ah, AR_INTR_SYNC_CAUSE_CLR);
3274         }
3275
3276         return true;
3277 }
3278
3279 enum ath9k_int ath9k_hw_set_interrupts(struct ath_hw *ah, enum ath9k_int ints)
3280 {
3281         u32 omask = ah->mask_reg;
3282         u32 mask, mask2;
3283         struct ath9k_hw_capabilities *pCap = &ah->caps;
3284
3285         DPRINTF(ah->ah_sc, ATH_DBG_INTERRUPT, "0x%x => 0x%x\n", omask, ints);
3286
3287         if (omask & ATH9K_INT_GLOBAL) {
3288                 DPRINTF(ah->ah_sc, ATH_DBG_INTERRUPT, "disable IER\n");
3289                 REG_WRITE(ah, AR_IER, AR_IER_DISABLE);
3290                 (void) REG_READ(ah, AR_IER);
3291                 if (!AR_SREV_9100(ah)) {
3292                         REG_WRITE(ah, AR_INTR_ASYNC_ENABLE, 0);
3293                         (void) REG_READ(ah, AR_INTR_ASYNC_ENABLE);
3294
3295                         REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
3296                         (void) REG_READ(ah, AR_INTR_SYNC_ENABLE);
3297                 }
3298         }
3299
3300         mask = ints & ATH9K_INT_COMMON;
3301         mask2 = 0;
3302
3303         if (ints & ATH9K_INT_TX) {
3304                 if (ah->txok_interrupt_mask)
3305                         mask |= AR_IMR_TXOK;
3306                 if (ah->txdesc_interrupt_mask)
3307                         mask |= AR_IMR_TXDESC;
3308                 if (ah->txerr_interrupt_mask)
3309                         mask |= AR_IMR_TXERR;
3310                 if (ah->txeol_interrupt_mask)
3311                         mask |= AR_IMR_TXEOL;
3312         }
3313         if (ints & ATH9K_INT_RX) {
3314                 mask |= AR_IMR_RXERR;
3315                 if (ah->config.intr_mitigation)
3316                         mask |= AR_IMR_RXMINTR | AR_IMR_RXINTM;
3317                 else
3318                         mask |= AR_IMR_RXOK | AR_IMR_RXDESC;
3319                 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
3320                         mask |= AR_IMR_GENTMR;
3321         }
3322
3323         if (ints & (ATH9K_INT_BMISC)) {
3324                 mask |= AR_IMR_BCNMISC;
3325                 if (ints & ATH9K_INT_TIM)
3326                         mask2 |= AR_IMR_S2_TIM;
3327                 if (ints & ATH9K_INT_DTIM)
3328                         mask2 |= AR_IMR_S2_DTIM;
3329                 if (ints & ATH9K_INT_DTIMSYNC)
3330                         mask2 |= AR_IMR_S2_DTIMSYNC;
3331                 if (ints & ATH9K_INT_CABEND)
3332                         mask2 |= AR_IMR_S2_CABEND;
3333                 if (ints & ATH9K_INT_TSFOOR)
3334                         mask2 |= AR_IMR_S2_TSFOOR;
3335         }
3336
3337         if (ints & (ATH9K_INT_GTT | ATH9K_INT_CST)) {
3338                 mask |= AR_IMR_BCNMISC;
3339                 if (ints & ATH9K_INT_GTT)
3340                         mask2 |= AR_IMR_S2_GTT;
3341                 if (ints & ATH9K_INT_CST)
3342                         mask2 |= AR_IMR_S2_CST;
3343         }
3344
3345         DPRINTF(ah->ah_sc, ATH_DBG_INTERRUPT, "new IMR 0x%x\n", mask);
3346         REG_WRITE(ah, AR_IMR, mask);
3347         mask = REG_READ(ah, AR_IMR_S2) & ~(AR_IMR_S2_TIM |
3348                                            AR_IMR_S2_DTIM |
3349                                            AR_IMR_S2_DTIMSYNC |
3350                                            AR_IMR_S2_CABEND |
3351                                            AR_IMR_S2_CABTO |
3352                                            AR_IMR_S2_TSFOOR |
3353                                            AR_IMR_S2_GTT | AR_IMR_S2_CST);
3354         REG_WRITE(ah, AR_IMR_S2, mask | mask2);
3355         ah->mask_reg = ints;
3356
3357         if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
3358                 if (ints & ATH9K_INT_TIM_TIMER)
3359                         REG_SET_BIT(ah, AR_IMR_S5, AR_IMR_S5_TIM_TIMER);
3360                 else
3361                         REG_CLR_BIT(ah, AR_IMR_S5, AR_IMR_S5_TIM_TIMER);
3362         }
3363
3364         if (ints & ATH9K_INT_GLOBAL) {
3365                 DPRINTF(ah->ah_sc, ATH_DBG_INTERRUPT, "enable IER\n");
3366                 REG_WRITE(ah, AR_IER, AR_IER_ENABLE);
3367                 if (!AR_SREV_9100(ah)) {
3368                         REG_WRITE(ah, AR_INTR_ASYNC_ENABLE,
3369                                   AR_INTR_MAC_IRQ);
3370                         REG_WRITE(ah, AR_INTR_ASYNC_MASK, AR_INTR_MAC_IRQ);
3371
3372
3373                         REG_WRITE(ah, AR_INTR_SYNC_ENABLE,
3374                                   AR_INTR_SYNC_DEFAULT);
3375                         REG_WRITE(ah, AR_INTR_SYNC_MASK,
3376                                   AR_INTR_SYNC_DEFAULT);
3377                 }
3378                 DPRINTF(ah->ah_sc, ATH_DBG_INTERRUPT, "AR_IMR 0x%x IER 0x%x\n",
3379                          REG_READ(ah, AR_IMR), REG_READ(ah, AR_IER));
3380         }
3381
3382         return omask;
3383 }
3384
3385 /*******************/
3386 /* Beacon Handling */
3387 /*******************/
3388
3389 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
3390 {
3391         int flags = 0;
3392
3393         ah->beacon_interval = beacon_period;
3394
3395         switch (ah->opmode) {
3396         case NL80211_IFTYPE_STATION:
3397         case NL80211_IFTYPE_MONITOR:
3398                 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
3399                 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, 0xffff);
3400                 REG_WRITE(ah, AR_NEXT_SWBA, 0x7ffff);
3401                 flags |= AR_TBTT_TIMER_EN;
3402                 break;
3403         case NL80211_IFTYPE_ADHOC:
3404         case NL80211_IFTYPE_MESH_POINT:
3405                 REG_SET_BIT(ah, AR_TXCFG,
3406                             AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
3407                 REG_WRITE(ah, AR_NEXT_NDP_TIMER,
3408                           TU_TO_USEC(next_beacon +
3409                                      (ah->atim_window ? ah->
3410                                       atim_window : 1)));
3411                 flags |= AR_NDP_TIMER_EN;
3412         case NL80211_IFTYPE_AP:
3413                 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
3414                 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT,
3415                           TU_TO_USEC(next_beacon -
3416                                      ah->config.
3417                                      dma_beacon_response_time));
3418                 REG_WRITE(ah, AR_NEXT_SWBA,
3419                           TU_TO_USEC(next_beacon -
3420                                      ah->config.
3421                                      sw_beacon_response_time));
3422                 flags |=
3423                         AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
3424                 break;
3425         default:
3426                 DPRINTF(ah->ah_sc, ATH_DBG_BEACON,
3427                         "%s: unsupported opmode: %d\n",
3428                         __func__, ah->opmode);
3429                 return;
3430                 break;
3431         }
3432
3433         REG_WRITE(ah, AR_BEACON_PERIOD, TU_TO_USEC(beacon_period));
3434         REG_WRITE(ah, AR_DMA_BEACON_PERIOD, TU_TO_USEC(beacon_period));
3435         REG_WRITE(ah, AR_SWBA_PERIOD, TU_TO_USEC(beacon_period));
3436         REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
3437
3438         beacon_period &= ~ATH9K_BEACON_ENA;
3439         if (beacon_period & ATH9K_BEACON_RESET_TSF) {
3440                 beacon_period &= ~ATH9K_BEACON_RESET_TSF;
3441                 ath9k_hw_reset_tsf(ah);
3442         }
3443
3444         REG_SET_BIT(ah, AR_TIMER_MODE, flags);
3445 }
3446
3447 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
3448                                     const struct ath9k_beacon_state *bs)
3449 {
3450         u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
3451         struct ath9k_hw_capabilities *pCap = &ah->caps;
3452
3453         REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
3454
3455         REG_WRITE(ah, AR_BEACON_PERIOD,
3456                   TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
3457         REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
3458                   TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
3459
3460         REG_RMW_FIELD(ah, AR_RSSI_THR,
3461                       AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
3462
3463         beaconintval = bs->bs_intval & ATH9K_BEACON_PERIOD;
3464
3465         if (bs->bs_sleepduration > beaconintval)
3466                 beaconintval = bs->bs_sleepduration;
3467
3468         dtimperiod = bs->bs_dtimperiod;
3469         if (bs->bs_sleepduration > dtimperiod)
3470                 dtimperiod = bs->bs_sleepduration;
3471
3472         if (beaconintval == dtimperiod)
3473                 nextTbtt = bs->bs_nextdtim;
3474         else
3475                 nextTbtt = bs->bs_nexttbtt;
3476
3477         DPRINTF(ah->ah_sc, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
3478         DPRINTF(ah->ah_sc, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
3479         DPRINTF(ah->ah_sc, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
3480         DPRINTF(ah->ah_sc, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
3481
3482         REG_WRITE(ah, AR_NEXT_DTIM,
3483                   TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
3484         REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
3485
3486         REG_WRITE(ah, AR_SLEEP1,
3487                   SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
3488                   | AR_SLEEP1_ASSUME_DTIM);
3489
3490         if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
3491                 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
3492         else
3493                 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
3494
3495         REG_WRITE(ah, AR_SLEEP2,
3496                   SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
3497
3498         REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
3499         REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
3500
3501         REG_SET_BIT(ah, AR_TIMER_MODE,
3502                     AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
3503                     AR_DTIM_TIMER_EN);
3504
3505         /* TSF Out of Range Threshold */
3506         REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
3507 }
3508
3509 /*******************/
3510 /* HW Capabilities */
3511 /*******************/
3512
3513 void ath9k_hw_fill_cap_info(struct ath_hw *ah)
3514 {
3515         struct ath9k_hw_capabilities *pCap = &ah->caps;
3516         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
3517         struct ath_btcoex_info *btcoex_info = &ah->ah_sc->btcoex_info;
3518
3519         u16 capField = 0, eeval;
3520
3521         eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
3522         regulatory->current_rd = eeval;
3523
3524         eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_1);
3525         if (AR_SREV_9285_10_OR_LATER(ah))
3526                 eeval |= AR9285_RDEXT_DEFAULT;
3527         regulatory->current_rd_ext = eeval;
3528
3529         capField = ah->eep_ops->get_eeprom(ah, EEP_OP_CAP);
3530
3531         if (ah->opmode != NL80211_IFTYPE_AP &&
3532             ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
3533                 if (regulatory->current_rd == 0x64 ||
3534                     regulatory->current_rd == 0x65)
3535                         regulatory->current_rd += 5;
3536                 else if (regulatory->current_rd == 0x41)
3537                         regulatory->current_rd = 0x43;
3538                 DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY,
3539                         "regdomain mapped to 0x%x\n", regulatory->current_rd);
3540         }
3541
3542         eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
3543         bitmap_zero(pCap->wireless_modes, ATH9K_MODE_MAX);
3544
3545         if (eeval & AR5416_OPFLAGS_11A) {
3546                 set_bit(ATH9K_MODE_11A, pCap->wireless_modes);
3547                 if (ah->config.ht_enable) {
3548                         if (!(eeval & AR5416_OPFLAGS_N_5G_HT20))
3549                                 set_bit(ATH9K_MODE_11NA_HT20,
3550                                         pCap->wireless_modes);
3551                         if (!(eeval & AR5416_OPFLAGS_N_5G_HT40)) {
3552                                 set_bit(ATH9K_MODE_11NA_HT40PLUS,
3553                                         pCap->wireless_modes);
3554                                 set_bit(ATH9K_MODE_11NA_HT40MINUS,
3555                                         pCap->wireless_modes);
3556                         }
3557                 }
3558         }
3559
3560         if (eeval & AR5416_OPFLAGS_11G) {
3561                 set_bit(ATH9K_MODE_11G, pCap->wireless_modes);
3562                 if (ah->config.ht_enable) {
3563                         if (!(eeval & AR5416_OPFLAGS_N_2G_HT20))
3564                                 set_bit(ATH9K_MODE_11NG_HT20,
3565                                         pCap->wireless_modes);
3566                         if (!(eeval & AR5416_OPFLAGS_N_2G_HT40)) {
3567                                 set_bit(ATH9K_MODE_11NG_HT40PLUS,
3568                                         pCap->wireless_modes);
3569                                 set_bit(ATH9K_MODE_11NG_HT40MINUS,
3570                                         pCap->wireless_modes);
3571                         }
3572                 }
3573         }
3574
3575         pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
3576         /*
3577          * For AR9271 we will temporarilly uses the rx chainmax as read from
3578          * the EEPROM.
3579          */
3580         if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
3581             !(eeval & AR5416_OPFLAGS_11A) &&
3582             !(AR_SREV_9271(ah)))
3583                 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
3584                 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
3585         else
3586                 /* Use rx_chainmask from EEPROM. */
3587                 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
3588
3589         if (!(AR_SREV_9280(ah) && (ah->hw_version.macRev == 0)))
3590                 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
3591
3592         pCap->low_2ghz_chan = 2312;
3593         pCap->high_2ghz_chan = 2732;
3594
3595         pCap->low_5ghz_chan = 4920;
3596         pCap->high_5ghz_chan = 6100;
3597
3598         pCap->hw_caps &= ~ATH9K_HW_CAP_CIPHER_CKIP;
3599         pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_TKIP;
3600         pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_AESCCM;
3601
3602         pCap->hw_caps &= ~ATH9K_HW_CAP_MIC_CKIP;
3603         pCap->hw_caps |= ATH9K_HW_CAP_MIC_TKIP;
3604         pCap->hw_caps |= ATH9K_HW_CAP_MIC_AESCCM;
3605
3606         if (ah->config.ht_enable)
3607                 pCap->hw_caps |= ATH9K_HW_CAP_HT;
3608         else
3609                 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
3610
3611         pCap->hw_caps |= ATH9K_HW_CAP_GTT;
3612         pCap->hw_caps |= ATH9K_HW_CAP_VEOL;
3613         pCap->hw_caps |= ATH9K_HW_CAP_BSSIDMASK;
3614         pCap->hw_caps &= ~ATH9K_HW_CAP_MCAST_KEYSEARCH;
3615
3616         if (capField & AR_EEPROM_EEPCAP_MAXQCU)
3617                 pCap->total_queues =
3618                         MS(capField, AR_EEPROM_EEPCAP_MAXQCU);
3619         else
3620                 pCap->total_queues = ATH9K_NUM_TX_QUEUES;
3621
3622         if (capField & AR_EEPROM_EEPCAP_KC_ENTRIES)
3623                 pCap->keycache_size =
3624                         1 << MS(capField, AR_EEPROM_EEPCAP_KC_ENTRIES);
3625         else
3626                 pCap->keycache_size = AR_KEYTABLE_SIZE;
3627
3628         pCap->hw_caps |= ATH9K_HW_CAP_FASTCC;
3629         pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD;
3630
3631         if (AR_SREV_9285_10_OR_LATER(ah))
3632                 pCap->num_gpio_pins = AR9285_NUM_GPIO;
3633         else if (AR_SREV_9280_10_OR_LATER(ah))
3634                 pCap->num_gpio_pins = AR928X_NUM_GPIO;
3635         else
3636                 pCap->num_gpio_pins = AR_NUM_GPIO;
3637
3638         if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
3639                 pCap->hw_caps |= ATH9K_HW_CAP_CST;
3640                 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
3641         } else {
3642                 pCap->rts_aggr_limit = (8 * 1024);
3643         }
3644
3645         pCap->hw_caps |= ATH9K_HW_CAP_ENHANCEDPM;
3646
3647 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
3648         ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
3649         if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
3650                 ah->rfkill_gpio =
3651                         MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
3652                 ah->rfkill_polarity =
3653                         MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
3654
3655                 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
3656         }
3657 #endif
3658
3659         if ((ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI) ||
3660             (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE) ||
3661             (ah->hw_version.macVersion == AR_SREV_VERSION_9160) ||
3662             (ah->hw_version.macVersion == AR_SREV_VERSION_9100) ||
3663             (ah->hw_version.macVersion == AR_SREV_VERSION_9280) ||
3664             (ah->hw_version.macVersion == AR_SREV_VERSION_9285))
3665                 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
3666         else
3667                 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
3668
3669         if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
3670                 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
3671         else
3672                 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
3673
3674         if (regulatory->current_rd_ext & (1 << REG_EXT_JAPAN_MIDBAND)) {
3675                 pCap->reg_cap =
3676                         AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
3677                         AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN |
3678                         AR_EEPROM_EEREGCAP_EN_KK_U2 |
3679                         AR_EEPROM_EEREGCAP_EN_KK_MIDBAND;
3680         } else {
3681                 pCap->reg_cap =
3682                         AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
3683                         AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN;
3684         }
3685
3686         pCap->reg_cap |= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND;
3687
3688         pCap->num_antcfg_5ghz =
3689                 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_5GHZ);
3690         pCap->num_antcfg_2ghz =
3691                 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
3692
3693         if (AR_SREV_9280_10_OR_LATER(ah) && btcoex_enable) {
3694                 btcoex_info->btactive_gpio = ATH_BTACTIVE_GPIO;
3695                 btcoex_info->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
3696
3697                 if (AR_SREV_9285(ah))
3698                         btcoex_info->btcoex_scheme = ATH_BTCOEX_CFG_3WIRE;
3699                 else
3700                         btcoex_info->btcoex_scheme = ATH_BTCOEX_CFG_2WIRE;
3701         } else {
3702                 btcoex_info->btcoex_scheme = ATH_BTCOEX_CFG_NONE;
3703         }
3704 }
3705
3706 bool ath9k_hw_getcapability(struct ath_hw *ah, enum ath9k_capability_type type,
3707                             u32 capability, u32 *result)
3708 {
3709         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
3710         switch (type) {
3711         case ATH9K_CAP_CIPHER:
3712                 switch (capability) {
3713                 case ATH9K_CIPHER_AES_CCM:
3714                 case ATH9K_CIPHER_AES_OCB:
3715                 case ATH9K_CIPHER_TKIP:
3716                 case ATH9K_CIPHER_WEP:
3717                 case ATH9K_CIPHER_MIC:
3718                 case ATH9K_CIPHER_CLR:
3719                         return true;
3720                 default:
3721                         return false;
3722                 }
3723         case ATH9K_CAP_TKIP_MIC:
3724                 switch (capability) {
3725                 case 0:
3726                         return true;
3727                 case 1:
3728                         return (ah->sta_id1_defaults &
3729                                 AR_STA_ID1_CRPT_MIC_ENABLE) ? true :
3730                         false;
3731                 }
3732         case ATH9K_CAP_TKIP_SPLIT:
3733                 return (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) ?
3734                         false : true;
3735         case ATH9K_CAP_DIVERSITY:
3736                 return (REG_READ(ah, AR_PHY_CCK_DETECT) &
3737                         AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV) ?
3738                         true : false;
3739         case ATH9K_CAP_MCAST_KEYSRCH:
3740                 switch (capability) {
3741                 case 0:
3742                         return true;
3743                 case 1:
3744                         if (REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_ADHOC) {
3745                                 return false;
3746                         } else {
3747                                 return (ah->sta_id1_defaults &
3748                                         AR_STA_ID1_MCAST_KSRCH) ? true :
3749                                         false;
3750                         }
3751                 }
3752                 return false;
3753         case ATH9K_CAP_TXPOW:
3754                 switch (capability) {
3755                 case 0:
3756                         return 0;
3757                 case 1:
3758                         *result = regulatory->power_limit;
3759                         return 0;
3760                 case 2:
3761                         *result = regulatory->max_power_level;
3762                         return 0;
3763                 case 3:
3764                         *result = regulatory->tp_scale;
3765                         return 0;
3766                 }
3767                 return false;
3768         case ATH9K_CAP_DS:
3769                 return (AR_SREV_9280_20_OR_LATER(ah) &&
3770                         (ah->eep_ops->get_eeprom(ah, EEP_RC_CHAIN_MASK) == 1))
3771                         ? false : true;
3772         default:
3773                 return false;
3774         }
3775 }
3776
3777 bool ath9k_hw_setcapability(struct ath_hw *ah, enum ath9k_capability_type type,
3778                             u32 capability, u32 setting, int *status)
3779 {
3780         u32 v;
3781
3782         switch (type) {
3783         case ATH9K_CAP_TKIP_MIC:
3784                 if (setting)
3785                         ah->sta_id1_defaults |=
3786                                 AR_STA_ID1_CRPT_MIC_ENABLE;
3787                 else
3788                         ah->sta_id1_defaults &=
3789                                 ~AR_STA_ID1_CRPT_MIC_ENABLE;
3790                 return true;
3791         case ATH9K_CAP_DIVERSITY:
3792                 v = REG_READ(ah, AR_PHY_CCK_DETECT);
3793                 if (setting)
3794                         v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
3795                 else
3796                         v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
3797                 REG_WRITE(ah, AR_PHY_CCK_DETECT, v);
3798                 return true;
3799         case ATH9K_CAP_MCAST_KEYSRCH:
3800                 if (setting)
3801                         ah->sta_id1_defaults |= AR_STA_ID1_MCAST_KSRCH;
3802                 else
3803                         ah->sta_id1_defaults &= ~AR_STA_ID1_MCAST_KSRCH;
3804                 return true;
3805         default:
3806                 return false;
3807         }
3808 }
3809
3810 /****************************/
3811 /* GPIO / RFKILL / Antennae */
3812 /****************************/
3813
3814 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
3815                                          u32 gpio, u32 type)
3816 {
3817         int addr;
3818         u32 gpio_shift, tmp;
3819
3820         if (gpio > 11)
3821                 addr = AR_GPIO_OUTPUT_MUX3;
3822         else if (gpio > 5)
3823                 addr = AR_GPIO_OUTPUT_MUX2;
3824         else
3825                 addr = AR_GPIO_OUTPUT_MUX1;
3826
3827         gpio_shift = (gpio % 6) * 5;
3828
3829         if (AR_SREV_9280_20_OR_LATER(ah)
3830             || (addr != AR_GPIO_OUTPUT_MUX1)) {
3831                 REG_RMW(ah, addr, (type << gpio_shift),
3832                         (0x1f << gpio_shift));
3833         } else {
3834                 tmp = REG_READ(ah, addr);
3835                 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
3836                 tmp &= ~(0x1f << gpio_shift);
3837                 tmp |= (type << gpio_shift);
3838                 REG_WRITE(ah, addr, tmp);
3839         }
3840 }
3841
3842 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
3843 {
3844         u32 gpio_shift;
3845
3846         ASSERT(gpio < ah->caps.num_gpio_pins);
3847
3848         gpio_shift = gpio << 1;
3849
3850         REG_RMW(ah,
3851                 AR_GPIO_OE_OUT,
3852                 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
3853                 (AR_GPIO_OE_OUT_DRV << gpio_shift));
3854 }
3855
3856 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
3857 {
3858 #define MS_REG_READ(x, y) \
3859         (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
3860
3861         if (gpio >= ah->caps.num_gpio_pins)
3862                 return 0xffffffff;
3863
3864         if (AR_SREV_9287_10_OR_LATER(ah))
3865                 return MS_REG_READ(AR9287, gpio) != 0;
3866         else if (AR_SREV_9285_10_OR_LATER(ah))
3867                 return MS_REG_READ(AR9285, gpio) != 0;
3868         else if (AR_SREV_9280_10_OR_LATER(ah))
3869                 return MS_REG_READ(AR928X, gpio) != 0;
3870         else
3871                 return MS_REG_READ(AR, gpio) != 0;
3872 }
3873
3874 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
3875                          u32 ah_signal_type)
3876 {
3877         u32 gpio_shift;
3878
3879         ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
3880
3881         gpio_shift = 2 * gpio;
3882
3883         REG_RMW(ah,
3884                 AR_GPIO_OE_OUT,
3885                 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
3886                 (AR_GPIO_OE_OUT_DRV << gpio_shift));
3887 }
3888
3889 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
3890 {
3891         REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
3892                 AR_GPIO_BIT(gpio));
3893 }
3894
3895 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
3896 {
3897         return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
3898 }
3899
3900 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
3901 {
3902         REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
3903 }
3904
3905 bool ath9k_hw_setantennaswitch(struct ath_hw *ah,
3906                                enum ath9k_ant_setting settings,
3907                                struct ath9k_channel *chan,
3908                                u8 *tx_chainmask,
3909                                u8 *rx_chainmask,
3910                                u8 *antenna_cfgd)
3911 {
3912         static u8 tx_chainmask_cfg, rx_chainmask_cfg;
3913
3914         if (AR_SREV_9280(ah)) {
3915                 if (!tx_chainmask_cfg) {
3916
3917                         tx_chainmask_cfg = *tx_chainmask;
3918                         rx_chainmask_cfg = *rx_chainmask;
3919                 }
3920
3921                 switch (settings) {
3922                 case ATH9K_ANT_FIXED_A:
3923                         *tx_chainmask = ATH9K_ANTENNA0_CHAINMASK;
3924                         *rx_chainmask = ATH9K_ANTENNA0_CHAINMASK;
3925                         *antenna_cfgd = true;
3926                         break;
3927                 case ATH9K_ANT_FIXED_B:
3928                         if (ah->caps.tx_chainmask >
3929                             ATH9K_ANTENNA1_CHAINMASK) {
3930                                 *tx_chainmask = ATH9K_ANTENNA1_CHAINMASK;
3931                         }
3932                         *rx_chainmask = ATH9K_ANTENNA1_CHAINMASK;
3933                         *antenna_cfgd = true;
3934                         break;
3935                 case ATH9K_ANT_VARIABLE:
3936                         *tx_chainmask = tx_chainmask_cfg;
3937                         *rx_chainmask = rx_chainmask_cfg;
3938                         *antenna_cfgd = true;
3939                         break;
3940                 default:
3941                         break;
3942                 }
3943         } else {
3944                 ah->config.diversity_control = settings;
3945         }
3946
3947         return true;
3948 }
3949
3950 /*********************/
3951 /* General Operation */
3952 /*********************/
3953
3954 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
3955 {
3956         u32 bits = REG_READ(ah, AR_RX_FILTER);
3957         u32 phybits = REG_READ(ah, AR_PHY_ERR);
3958
3959         if (phybits & AR_PHY_ERR_RADAR)
3960                 bits |= ATH9K_RX_FILTER_PHYRADAR;
3961         if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
3962                 bits |= ATH9K_RX_FILTER_PHYERR;
3963
3964         return bits;
3965 }
3966
3967 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
3968 {
3969         u32 phybits;
3970
3971         REG_WRITE(ah, AR_RX_FILTER, bits);
3972
3973         phybits = 0;
3974         if (bits & ATH9K_RX_FILTER_PHYRADAR)
3975                 phybits |= AR_PHY_ERR_RADAR;
3976         if (bits & ATH9K_RX_FILTER_PHYERR)
3977                 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
3978         REG_WRITE(ah, AR_PHY_ERR, phybits);
3979
3980         if (phybits)
3981                 REG_WRITE(ah, AR_RXCFG,
3982                           REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
3983         else
3984                 REG_WRITE(ah, AR_RXCFG,
3985                           REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
3986 }
3987
3988 bool ath9k_hw_phy_disable(struct ath_hw *ah)
3989 {
3990         return ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM);
3991 }
3992
3993 bool ath9k_hw_disable(struct ath_hw *ah)
3994 {
3995         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
3996                 return false;
3997
3998         return ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD);
3999 }
4000
4001 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
4002 {
4003         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
4004         struct ath9k_channel *chan = ah->curchan;
4005         struct ieee80211_channel *channel = chan->chan;
4006
4007         regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
4008
4009         ah->eep_ops->set_txpower(ah, chan,
4010                                  ath9k_regd_get_ctl(regulatory, chan),
4011                                  channel->max_antenna_gain * 2,
4012                                  channel->max_power * 2,
4013                                  min((u32) MAX_RATE_POWER,
4014                                  (u32) regulatory->power_limit));
4015 }
4016
4017 void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac)
4018 {
4019         memcpy(ah->macaddr, mac, ETH_ALEN);
4020 }
4021
4022 void ath9k_hw_setopmode(struct ath_hw *ah)
4023 {
4024         ath9k_hw_set_operating_mode(ah, ah->opmode);
4025 }
4026
4027 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
4028 {
4029         REG_WRITE(ah, AR_MCAST_FIL0, filter0);
4030         REG_WRITE(ah, AR_MCAST_FIL1, filter1);
4031 }
4032
4033 void ath9k_hw_setbssidmask(struct ath_softc *sc)
4034 {
4035         REG_WRITE(sc->sc_ah, AR_BSSMSKL, get_unaligned_le32(sc->bssidmask));
4036         REG_WRITE(sc->sc_ah, AR_BSSMSKU, get_unaligned_le16(sc->bssidmask + 4));
4037 }
4038
4039 void ath9k_hw_write_associd(struct ath_softc *sc)
4040 {
4041         REG_WRITE(sc->sc_ah, AR_BSS_ID0, get_unaligned_le32(sc->curbssid));
4042         REG_WRITE(sc->sc_ah, AR_BSS_ID1, get_unaligned_le16(sc->curbssid + 4) |
4043                   ((sc->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
4044 }
4045
4046 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
4047 {
4048         u64 tsf;
4049
4050         tsf = REG_READ(ah, AR_TSF_U32);
4051         tsf = (tsf << 32) | REG_READ(ah, AR_TSF_L32);
4052
4053         return tsf;
4054 }
4055
4056 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
4057 {
4058         REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
4059         REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
4060 }
4061
4062 void ath9k_hw_reset_tsf(struct ath_hw *ah)
4063 {
4064         ath9k_ps_wakeup(ah->ah_sc);
4065         if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
4066                            AH_TSF_WRITE_TIMEOUT))
4067                 DPRINTF(ah->ah_sc, ATH_DBG_RESET,
4068                         "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
4069
4070         REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
4071         ath9k_ps_restore(ah->ah_sc);
4072 }
4073
4074 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
4075 {
4076         if (setting)
4077                 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
4078         else
4079                 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
4080 }
4081
4082 bool ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
4083 {
4084         if (us < ATH9K_SLOT_TIME_9 || us > ath9k_hw_mac_to_usec(ah, 0xffff)) {
4085                 DPRINTF(ah->ah_sc, ATH_DBG_RESET, "bad slot time %u\n", us);
4086                 ah->slottime = (u32) -1;
4087                 return false;
4088         } else {
4089                 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, ath9k_hw_mac_to_clks(ah, us));
4090                 ah->slottime = us;
4091                 return true;
4092         }
4093 }
4094
4095 void ath9k_hw_set11nmac2040(struct ath_hw *ah, enum ath9k_ht_macmode mode)
4096 {
4097         u32 macmode;
4098
4099         if (mode == ATH9K_HT_MACMODE_2040 &&
4100             !ah->config.cwm_ignore_extcca)
4101                 macmode = AR_2040_JOINED_RX_CLEAR;
4102         else
4103                 macmode = 0;
4104
4105         REG_WRITE(ah, AR_2040_MODE, macmode);
4106 }
4107
4108 /* HW Generic timers configuration */
4109
4110 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
4111 {
4112         {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
4113         {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
4114         {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
4115         {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
4116         {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
4117         {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
4118         {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
4119         {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
4120         {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
4121         {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
4122                                 AR_NDP2_TIMER_MODE, 0x0002},
4123         {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
4124                                 AR_NDP2_TIMER_MODE, 0x0004},
4125         {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
4126                                 AR_NDP2_TIMER_MODE, 0x0008},
4127         {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
4128                                 AR_NDP2_TIMER_MODE, 0x0010},
4129         {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
4130                                 AR_NDP2_TIMER_MODE, 0x0020},
4131         {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
4132                                 AR_NDP2_TIMER_MODE, 0x0040},
4133         {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
4134                                 AR_NDP2_TIMER_MODE, 0x0080}
4135 };
4136
4137 /* HW generic timer primitives */
4138
4139 /* compute and clear index of rightmost 1 */
4140 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
4141 {
4142         u32 b;
4143
4144         b = *mask;
4145         b &= (0-b);
4146         *mask &= ~b;
4147         b *= debruijn32;
4148         b >>= 27;
4149
4150         return timer_table->gen_timer_index[b];
4151 }
4152
4153 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
4154 {
4155         return REG_READ(ah, AR_TSF_L32);
4156 }
4157
4158 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
4159                                           void (*trigger)(void *),
4160                                           void (*overflow)(void *),
4161                                           void *arg,
4162                                           u8 timer_index)
4163 {
4164         struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
4165         struct ath_gen_timer *timer;
4166
4167         timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
4168
4169         if (timer == NULL) {
4170                 printk(KERN_DEBUG "Failed to allocate memory"
4171                        "for hw timer[%d]\n", timer_index);
4172                 return NULL;
4173         }
4174
4175         /* allocate a hardware generic timer slot */
4176         timer_table->timers[timer_index] = timer;
4177         timer->index = timer_index;
4178         timer->trigger = trigger;
4179         timer->overflow = overflow;
4180         timer->arg = arg;
4181
4182         return timer;
4183 }
4184
4185 void ath_gen_timer_start(struct ath_hw *ah,
4186                          struct ath_gen_timer *timer,
4187                          u32 timer_next, u32 timer_period)
4188 {
4189         struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
4190         u32 tsf;
4191
4192         BUG_ON(!timer_period);
4193
4194         set_bit(timer->index, &timer_table->timer_mask.timer_bits);
4195
4196         tsf = ath9k_hw_gettsf32(ah);
4197
4198         DPRINTF(ah->ah_sc, ATH_DBG_HWTIMER, "curent tsf %x period %x"
4199                 "timer_next %x\n", tsf, timer_period, timer_next);
4200
4201         /*
4202          * Pull timer_next forward if the current TSF already passed it
4203          * because of software latency
4204          */
4205         if (timer_next < tsf)
4206                 timer_next = tsf + timer_period;
4207
4208         /*
4209          * Program generic timer registers
4210          */
4211         REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
4212                  timer_next);
4213         REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
4214                   timer_period);
4215         REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
4216                     gen_tmr_configuration[timer->index].mode_mask);
4217
4218         /* Enable both trigger and thresh interrupt masks */
4219         REG_SET_BIT(ah, AR_IMR_S5,
4220                 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
4221                 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
4222
4223         if ((ah->ah_sc->imask & ATH9K_INT_GENTIMER) == 0) {
4224                 ath9k_hw_set_interrupts(ah, 0);
4225                 ah->ah_sc->imask |= ATH9K_INT_GENTIMER;
4226                 ath9k_hw_set_interrupts(ah, ah->ah_sc->imask);
4227         }
4228 }
4229
4230 void ath_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
4231 {
4232         struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
4233
4234         if ((timer->index < AR_FIRST_NDP_TIMER) ||
4235                 (timer->index >= ATH_MAX_GEN_TIMER)) {
4236                 return;
4237         }
4238
4239         /* Clear generic timer enable bits. */
4240         REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
4241                         gen_tmr_configuration[timer->index].mode_mask);
4242
4243         /* Disable both trigger and thresh interrupt masks */
4244         REG_CLR_BIT(ah, AR_IMR_S5,
4245                 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
4246                 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
4247
4248         clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
4249
4250         /* if no timer is enabled, turn off interrupt mask */
4251         if (timer_table->timer_mask.val == 0) {
4252                 ath9k_hw_set_interrupts(ah, 0);
4253                 ah->ah_sc->imask &= ~ATH9K_INT_GENTIMER;
4254                 ath9k_hw_set_interrupts(ah, ah->ah_sc->imask);
4255         }
4256 }
4257
4258 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
4259 {
4260         struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
4261
4262         /* free the hardware generic timer slot */
4263         timer_table->timers[timer->index] = NULL;
4264         kfree(timer);
4265 }
4266
4267 /*
4268  * Generic Timer Interrupts handling
4269  */
4270 void ath_gen_timer_isr(struct ath_hw *ah)
4271 {
4272         struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
4273         struct ath_gen_timer *timer;
4274         u32 trigger_mask, thresh_mask, index;
4275
4276         /* get hardware generic timer interrupt status */
4277         trigger_mask = ah->intr_gen_timer_trigger;
4278         thresh_mask = ah->intr_gen_timer_thresh;
4279         trigger_mask &= timer_table->timer_mask.val;
4280         thresh_mask &= timer_table->timer_mask.val;
4281
4282         trigger_mask &= ~thresh_mask;
4283
4284         while (thresh_mask) {
4285                 index = rightmost_index(timer_table, &thresh_mask);
4286                 timer = timer_table->timers[index];
4287                 BUG_ON(!timer);
4288                 DPRINTF(ah->ah_sc, ATH_DBG_HWTIMER,
4289                         "TSF overflow for Gen timer %d\n", index);
4290                 timer->overflow(timer->arg);
4291         }
4292
4293         while (trigger_mask) {
4294                 index = rightmost_index(timer_table, &trigger_mask);
4295                 timer = timer_table->timers[index];
4296                 BUG_ON(!timer);
4297                 DPRINTF(ah->ah_sc, ATH_DBG_HWTIMER,
4298                         "Gen timer[%d] trigger\n", index);
4299                 timer->trigger(timer->arg);
4300         }
4301 }
4302
4303 /*
4304  * Primitive to disable ASPM
4305  */
4306 void ath_pcie_aspm_disable(struct ath_softc *sc)
4307 {
4308         struct pci_dev *pdev = to_pci_dev(sc->dev);
4309         u8 aspm;
4310
4311         pci_read_config_byte(pdev, ATH_PCIE_CAP_LINK_CTRL, &aspm);
4312         aspm &= ~(ATH_PCIE_CAP_LINK_L0S | ATH_PCIE_CAP_LINK_L1);
4313         pci_write_config_byte(pdev, ATH_PCIE_CAP_LINK_CTRL, aspm);
4314 }