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 #define ATH9K_CLOCK_RATE_CCK            22
  25 #define ATH9K_CLOCK_RATE_5GHZ_OFDM      40
  26 #define ATH9K_CLOCK_RATE_2GHZ_OFDM      44
  27
  28 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
  29 static void ath9k_hw_set_regs(struct ath_hw *ah, struct ath9k_channel *chan,
  30                               enum ath9k_ht_macmode macmode);
  31 static u32 ath9k_hw_ini_fixup(struct ath_hw *ah,
  32                               struct ar5416_eeprom_def *pEepData,
  33                               u32 reg, u32 value);
  34 static void ath9k_hw_9280_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan);
  35 static void ath9k_hw_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan);
  36
  37 /********************/
  38 /* Helper Functions */
  39 /********************/
  40
  41 static u32 ath9k_hw_mac_usec(struct ath_hw *ah, u32 clks)
  42 {
  43         struct ieee80211_conf *conf = &ah->ah_sc->hw->conf;
  44
  45         if (!ah->curchan) /* should really check for CCK instead */
  46                 return clks / ATH9K_CLOCK_RATE_CCK;
  47         if (conf->channel->band == IEEE80211_BAND_2GHZ)
  48                 return clks / ATH9K_CLOCK_RATE_2GHZ_OFDM;
  49
  50         return clks / ATH9K_CLOCK_RATE_5GHZ_OFDM;
  51 }
  52
  53 static u32 ath9k_hw_mac_to_usec(struct ath_hw *ah, u32 clks)
  54 {
  55         struct ieee80211_conf *conf = &ah->ah_sc->hw->conf;
  56
  57         if (conf_is_ht40(conf))
  58                 return ath9k_hw_mac_usec(ah, clks) / 2;
  59         else
  60                 return ath9k_hw_mac_usec(ah, clks);
  61 }
  62
  63 static u32 ath9k_hw_mac_clks(struct ath_hw *ah, u32 usecs)
  64 {
  65         struct ieee80211_conf *conf = &ah->ah_sc->hw->conf;
  66
  67         if (!ah->curchan) /* should really check for CCK instead */
  68                 return usecs *ATH9K_CLOCK_RATE_CCK;
  69         if (conf->channel->band == IEEE80211_BAND_2GHZ)
  70                 return usecs *ATH9K_CLOCK_RATE_2GHZ_OFDM;
  71         return usecs *ATH9K_CLOCK_RATE_5GHZ_OFDM;
  72 }
  73
  74 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
  75 {
  76         struct ieee80211_conf *conf = &ah->ah_sc->hw->conf;
  77
  78         if (conf_is_ht40(conf))
  79                 return ath9k_hw_mac_clks(ah, usecs) * 2;
  80         else
  81                 return ath9k_hw_mac_clks(ah, usecs);
  82 }
  83
  84 /*
  85  * Read and write, they both share the same lock. We do this to serialize
  86  * reads and writes on Atheros 802.11n PCI devices only. This is required
  87  * as the FIFO on these devices can only accept sanely 2 requests. After
  88  * that the device goes bananas. Serializing the reads/writes prevents this
  89  * from happening.
  90  */
  91
  92 void ath9k_iowrite32(struct ath_hw *ah, u32 reg_offset, u32 val)
  93 {
  94         if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
  95                 unsigned long flags;
  96                 spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
  97                 iowrite32(val, ah->ah_sc->mem + reg_offset);
  98                 spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
  99         } else
 100                 iowrite32(val, ah->ah_sc->mem + reg_offset);
 101 }
 102
 103 unsigned int ath9k_ioread32(struct ath_hw *ah, u32 reg_offset)
 104 {
 105         u32 val;
 106         if (ah->config.serialize_regmode == SER_REG_MODE_ON) {
 107                 unsigned long flags;
 108                 spin_lock_irqsave(&ah->ah_sc->sc_serial_rw, flags);
 109                 val = ioread32(ah->ah_sc->mem + reg_offset);
 110                 spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
 111         } else
 112                 val = ioread32(ah->ah_sc->mem + reg_offset);
 113         return val;
 114 }
 115
 116 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
 117 {
 118         int i;
 119
 120         BUG_ON(timeout < AH_TIME_QUANTUM);
 121
 122         for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
 123                 if ((REG_READ(ah, reg) & mask) == val)
 124                         return true;
 125
 126                 udelay(AH_TIME_QUANTUM);
 127         }
 128
 129         DPRINTF(ah->ah_sc, ATH_DBG_ANY,
 130                 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
 131                 timeout, reg, REG_READ(ah, reg), mask, val);
 132
 133         return false;
 134 }
 135
 136 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
 137 {
 138         u32 retval;
 139         int i;
 140
 141         for (i = 0, retval = 0; i < n; i++) {
 142                 retval = (retval << 1) | (val & 1);
 143                 val >>= 1;
 144         }
 145         return retval;
 146 }
 147
 148 bool ath9k_get_channel_edges(struct ath_hw *ah,
 149                              u16 flags, u16 *low,
 150                              u16 *high)
 151 {
 152         struct ath9k_hw_capabilities *pCap = &ah->caps;
 153
 154         if (flags & CHANNEL_5GHZ) {
 155                 *low = pCap->low_5ghz_chan;
 156                 *high = pCap->high_5ghz_chan;
 157                 return true;
 158         }
 159         if ((flags & CHANNEL_2GHZ)) {
 160                 *low = pCap->low_2ghz_chan;
 161                 *high = pCap->high_2ghz_chan;
 162                 return true;
 163         }
 164         return false;
 165 }
 166
 167 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
 168                            const struct ath_rate_table *rates,
 169                            u32 frameLen, u16 rateix,
 170                            bool shortPreamble)
 171 {
 172         u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
 173         u32 kbps;
 174
 175         kbps = rates->info[rateix].ratekbps;
 176
 177         if (kbps == 0)
 178                 return 0;
 179
 180         switch (rates->info[rateix].phy) {
 181         case WLAN_RC_PHY_CCK:
 182                 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
 183                 if (shortPreamble && rates->info[rateix].short_preamble)
 184                         phyTime >>= 1;
 185                 numBits = frameLen << 3;
 186                 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
 187                 break;
 188         case WLAN_RC_PHY_OFDM:
 189                 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
 190                         bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
 191                         numBits = OFDM_PLCP_BITS + (frameLen << 3);
 192                         numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
 193                         txTime = OFDM_SIFS_TIME_QUARTER
 194                                 + OFDM_PREAMBLE_TIME_QUARTER
 195                                 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
 196                 } else if (ah->curchan &&
 197                            IS_CHAN_HALF_RATE(ah->curchan)) {
 198                         bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
 199                         numBits = OFDM_PLCP_BITS + (frameLen << 3);
 200                         numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
 201                         txTime = OFDM_SIFS_TIME_HALF +
 202                                 OFDM_PREAMBLE_TIME_HALF
 203                                 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
 204                 } else {
 205                         bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
 206                         numBits = OFDM_PLCP_BITS + (frameLen << 3);
 207                         numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
 208                         txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
 209                                 + (numSymbols * OFDM_SYMBOL_TIME);
 210                 }
 211                 break;
 212         default:
 213                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 214                         "Unknown phy %u (rate ix %u)\n",
 215                         rates->info[rateix].phy, rateix);
 216                 txTime = 0;
 217                 break;
 218         }
 219
 220         return txTime;
 221 }
 222
 223 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
 224                                   struct ath9k_channel *chan,
 225                                   struct chan_centers *centers)
 226 {
 227         int8_t extoff;
 228
 229         if (!IS_CHAN_HT40(chan)) {
 230                 centers->ctl_center = centers->ext_center =
 231                         centers->synth_center = chan->channel;
 232                 return;
 233         }
 234
 235         if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
 236             (chan->chanmode == CHANNEL_G_HT40PLUS)) {
 237                 centers->synth_center =
 238                         chan->channel + HT40_CHANNEL_CENTER_SHIFT;
 239                 extoff = 1;
 240         } else {
 241                 centers->synth_center =
 242                         chan->channel - HT40_CHANNEL_CENTER_SHIFT;
 243                 extoff = -1;
 244         }
 245
 246         centers->ctl_center =
 247                 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
 248         centers->ext_center =
 249                 centers->synth_center + (extoff *
 250                          ((ah->extprotspacing == ATH9K_HT_EXTPROTSPACING_20) ?
 251                           HT40_CHANNEL_CENTER_SHIFT : 15));
 252 }
 253
 254 /******************/
 255 /* Chip Revisions */
 256 /******************/
 257
 258 static void ath9k_hw_read_revisions(struct ath_hw *ah)
 259 {
 260         u32 val;
 261
 262         val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
 263
 264         if (val == 0xFF) {
 265                 val = REG_READ(ah, AR_SREV);
 266                 ah->hw_version.macVersion =
 267                         (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
 268                 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
 269                 ah->is_pciexpress = (val & AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
 270         } else {
 271                 if (!AR_SREV_9100(ah))
 272                         ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
 273
 274                 ah->hw_version.macRev = val & AR_SREV_REVISION;
 275
 276                 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
 277                         ah->is_pciexpress = true;
 278         }
 279 }
 280
 281 static int ath9k_hw_get_radiorev(struct ath_hw *ah)
 282 {
 283         u32 val;
 284         int i;
 285
 286         REG_WRITE(ah, AR_PHY(0x36), 0x00007058);
 287
 288         for (i = 0; i < 8; i++)
 289                 REG_WRITE(ah, AR_PHY(0x20), 0x00010000);
 290         val = (REG_READ(ah, AR_PHY(256)) >> 24) & 0xff;
 291         val = ((val & 0xf0) >> 4) | ((val & 0x0f) << 4);
 292
 293         return ath9k_hw_reverse_bits(val, 8);
 294 }
 295
 296 /************************************/
 297 /* HW Attach, Detach, Init Routines */
 298 /************************************/
 299
 300 static void ath9k_hw_disablepcie(struct ath_hw *ah)
 301 {
 302         if (AR_SREV_9100(ah))
 303                 return;
 304
 305         REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
 306         REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
 307         REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
 308         REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
 309         REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
 310         REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
 311         REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
 312         REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
 313         REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
 314
 315         REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
 316 }
 317
 318 static bool ath9k_hw_chip_test(struct ath_hw *ah)
 319 {
 320         u32 regAddr[2] = { AR_STA_ID0, AR_PHY_BASE + (8 << 2) };
 321         u32 regHold[2];
 322         u32 patternData[4] = { 0x55555555,
 323                                0xaaaaaaaa,
 324                                0x66666666,
 325                                0x99999999 };
 326         int i, j;
 327
 328         for (i = 0; i < 2; i++) {
 329                 u32 addr = regAddr[i];
 330                 u32 wrData, rdData;
 331
 332                 regHold[i] = REG_READ(ah, addr);
 333                 for (j = 0; j < 0x100; j++) {
 334                         wrData = (j << 16) | j;
 335                         REG_WRITE(ah, addr, wrData);
 336                         rdData = REG_READ(ah, addr);
 337                         if (rdData != wrData) {
 338                                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 339                                         "address test failed "
 340                                         "addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
 341                                         addr, wrData, rdData);
 342                                 return false;
 343                         }
 344                 }
 345                 for (j = 0; j < 4; j++) {
 346                         wrData = patternData[j];
 347                         REG_WRITE(ah, addr, wrData);
 348                         rdData = REG_READ(ah, addr);
 349                         if (wrData != rdData) {
 350                                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 351                                         "address test failed "
 352                                         "addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
 353                                         addr, wrData, rdData);
 354                                 return false;
 355                         }
 356                 }
 357                 REG_WRITE(ah, regAddr[i], regHold[i]);
 358         }
 359         udelay(100);
 360
 361         return true;
 362 }
 363
 364 static const char *ath9k_hw_devname(u16 devid)
 365 {
 366         switch (devid) {
 367         case AR5416_DEVID_PCI:
 368                 return "Atheros 5416";
 369         case AR5416_DEVID_PCIE:
 370                 return "Atheros 5418";
 371         case AR9160_DEVID_PCI:
 372                 return "Atheros 9160";
 373         case AR5416_AR9100_DEVID:
 374                 return "Atheros 9100";
 375         case AR9280_DEVID_PCI:
 376         case AR9280_DEVID_PCIE:
 377                 return "Atheros 9280";
 378         case AR9285_DEVID_PCIE:
 379                 return "Atheros 9285";
 380         case AR5416_DEVID_AR9287_PCI:
 381         case AR5416_DEVID_AR9287_PCIE:
 382                 return "Atheros 9287";
 383         }
 384
 385         return NULL;
 386 }
 387
 388 static void ath9k_hw_init_config(struct ath_hw *ah)
 389 {
 390         int i;
 391
 392         ah->config.dma_beacon_response_time = 2;
 393         ah->config.sw_beacon_response_time = 10;
 394         ah->config.additional_swba_backoff = 0;
 395         ah->config.ack_6mb = 0x0;
 396         ah->config.cwm_ignore_extcca = 0;
 397         ah->config.pcie_powersave_enable = 0;
 398         ah->config.pcie_clock_req = 0;
 399         ah->config.pcie_waen = 0;
 400         ah->config.analog_shiftreg = 1;
 401         ah->config.ht_enable = 1;
 402         ah->config.ofdm_trig_low = 200;
 403         ah->config.ofdm_trig_high = 500;
 404         ah->config.cck_trig_high = 200;
 405         ah->config.cck_trig_low = 100;
 406         ah->config.enable_ani = 1;
 407         ah->config.diversity_control = ATH9K_ANT_VARIABLE;
 408         ah->config.antenna_switch_swap = 0;
 409
 410         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
 411                 ah->config.spurchans[i][0] = AR_NO_SPUR;
 412                 ah->config.spurchans[i][1] = AR_NO_SPUR;
 413         }
 414
 415         ah->config.intr_mitigation = true;
 416
 417         /*
 418          * We need this for PCI devices only (Cardbus, PCI, miniPCI)
 419          * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
 420          * This means we use it for all AR5416 devices, and the few
 421          * minor PCI AR9280 devices out there.
 422          *
 423          * Serialization is required because these devices do not handle
 424          * well the case of two concurrent reads/writes due to the latency
 425          * involved. During one read/write another read/write can be issued
 426          * on another CPU while the previous read/write may still be working
 427          * on our hardware, if we hit this case the hardware poops in a loop.
 428          * We prevent this by serializing reads and writes.
 429          *
 430          * This issue is not present on PCI-Express devices or pre-AR5416
 431          * devices (legacy, 802.11abg).
 432          */
 433         if (num_possible_cpus() > 1)
 434                 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
 435 }
 436
 437 static void ath9k_hw_init_defaults(struct ath_hw *ah)
 438 {
 439         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
 440
 441         regulatory->country_code = CTRY_DEFAULT;
 442         regulatory->power_limit = MAX_RATE_POWER;
 443         regulatory->tp_scale = ATH9K_TP_SCALE_MAX;
 444
 445         ah->hw_version.magic = AR5416_MAGIC;
 446         ah->hw_version.subvendorid = 0;
 447
 448         ah->ah_flags = 0;
 449         if (ah->hw_version.devid == AR5416_AR9100_DEVID)
 450                 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
 451         if (!AR_SREV_9100(ah))
 452                 ah->ah_flags = AH_USE_EEPROM;
 453
 454         ah->atim_window = 0;
 455         ah->sta_id1_defaults = AR_STA_ID1_CRPT_MIC_ENABLE;
 456         ah->beacon_interval = 100;
 457         ah->enable_32kHz_clock = DONT_USE_32KHZ;
 458         ah->slottime = (u32) -1;
 459         ah->acktimeout = (u32) -1;
 460         ah->ctstimeout = (u32) -1;
 461         ah->globaltxtimeout = (u32) -1;
 462
 463         ah->gbeacon_rate = 0;
 464
 465         ah->power_mode = ATH9K_PM_UNDEFINED;
 466 }
 467
 468 static int ath9k_hw_rfattach(struct ath_hw *ah)
 469 {
 470         bool rfStatus = false;
 471         int ecode = 0;
 472
 473         rfStatus = ath9k_hw_init_rf(ah, &ecode);
 474         if (!rfStatus) {
 475                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 476                         "RF setup failed, status: %u\n", ecode);
 477                 return ecode;
 478         }
 479
 480         return 0;
 481 }
 482
 483 static int ath9k_hw_rf_claim(struct ath_hw *ah)
 484 {
 485         u32 val;
 486
 487         REG_WRITE(ah, AR_PHY(0), 0x00000007);
 488
 489         val = ath9k_hw_get_radiorev(ah);
 490         switch (val & AR_RADIO_SREV_MAJOR) {
 491         case 0:
 492                 val = AR_RAD5133_SREV_MAJOR;
 493                 break;
 494         case AR_RAD5133_SREV_MAJOR:
 495         case AR_RAD5122_SREV_MAJOR:
 496         case AR_RAD2133_SREV_MAJOR:
 497         case AR_RAD2122_SREV_MAJOR:
 498                 break;
 499         default:
 500                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 501                         "Radio Chip Rev 0x%02X not supported\n",
 502                         val & AR_RADIO_SREV_MAJOR);
 503                 return -EOPNOTSUPP;
 504         }
 505
 506         ah->hw_version.analog5GhzRev = val;
 507
 508         return 0;
 509 }
 510
 511 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
 512 {
 513         u32 sum;
 514         int i;
 515         u16 eeval;
 516
 517         sum = 0;
 518         for (i = 0; i < 3; i++) {
 519                 eeval = ah->eep_ops->get_eeprom(ah, AR_EEPROM_MAC(i));
 520                 sum += eeval;
 521                 ah->macaddr[2 * i] = eeval >> 8;
 522                 ah->macaddr[2 * i + 1] = eeval & 0xff;
 523         }
 524         if (sum == 0 || sum == 0xffff * 3)
 525                 return -EADDRNOTAVAIL;
 526
 527         return 0;
 528 }
 529
 530 static void ath9k_hw_init_rxgain_ini(struct ath_hw *ah)
 531 {
 532         u32 rxgain_type;
 533
 534         if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >= AR5416_EEP_MINOR_VER_17) {
 535                 rxgain_type = ah->eep_ops->get_eeprom(ah, EEP_RXGAIN_TYPE);
 536
 537                 if (rxgain_type == AR5416_EEP_RXGAIN_13DB_BACKOFF)
 538                         INIT_INI_ARRAY(&ah->iniModesRxGain,
 539                         ar9280Modes_backoff_13db_rxgain_9280_2,
 540                         ARRAY_SIZE(ar9280Modes_backoff_13db_rxgain_9280_2), 6);
 541                 else if (rxgain_type == AR5416_EEP_RXGAIN_23DB_BACKOFF)
 542                         INIT_INI_ARRAY(&ah->iniModesRxGain,
 543                         ar9280Modes_backoff_23db_rxgain_9280_2,
 544                         ARRAY_SIZE(ar9280Modes_backoff_23db_rxgain_9280_2), 6);
 545                 else
 546                         INIT_INI_ARRAY(&ah->iniModesRxGain,
 547                         ar9280Modes_original_rxgain_9280_2,
 548                         ARRAY_SIZE(ar9280Modes_original_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         }
 554 }
 555
 556 static void ath9k_hw_init_txgain_ini(struct ath_hw *ah)
 557 {
 558         u32 txgain_type;
 559
 560         if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >= AR5416_EEP_MINOR_VER_19) {
 561                 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);
 562
 563                 if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER)
 564                         INIT_INI_ARRAY(&ah->iniModesTxGain,
 565                         ar9280Modes_high_power_tx_gain_9280_2,
 566                         ARRAY_SIZE(ar9280Modes_high_power_tx_gain_9280_2), 6);
 567                 else
 568                         INIT_INI_ARRAY(&ah->iniModesTxGain,
 569                         ar9280Modes_original_tx_gain_9280_2,
 570                         ARRAY_SIZE(ar9280Modes_original_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         }
 576 }
 577
 578 static int ath9k_hw_post_init(struct ath_hw *ah)
 579 {
 580         int ecode;
 581
 582         if (!ath9k_hw_chip_test(ah))
 583                 return -ENODEV;
 584
 585         ecode = ath9k_hw_rf_claim(ah);
 586         if (ecode != 0)
 587                 return ecode;
 588
 589         ecode = ath9k_hw_eeprom_init(ah);
 590         if (ecode != 0)
 591                 return ecode;
 592
 593         DPRINTF(ah->ah_sc, ATH_DBG_CONFIG, "Eeprom VER: %d, REV: %d\n",
 594                 ah->eep_ops->get_eeprom_ver(ah), ah->eep_ops->get_eeprom_rev(ah));
 595
 596         ecode = ath9k_hw_rfattach(ah);
 597         if (ecode != 0)
 598                 return ecode;
 599
 600         if (!AR_SREV_9100(ah)) {
 601                 ath9k_hw_ani_setup(ah);
 602                 ath9k_hw_ani_init(ah);
 603         }
 604
 605         return 0;
 606 }
 607
 608 static bool ath9k_hw_devid_supported(u16 devid)
 609 {
 610         switch (devid) {
 611         case AR5416_DEVID_PCI:
 612         case AR5416_DEVID_PCIE:
 613         case AR5416_AR9100_DEVID:
 614         case AR9160_DEVID_PCI:
 615         case AR9280_DEVID_PCI:
 616         case AR9280_DEVID_PCIE:
 617         case AR9285_DEVID_PCIE:
 618         case AR5416_DEVID_AR9287_PCI:
 619         case AR5416_DEVID_AR9287_PCIE:
 620                 return true;
 621         default:
 622                 break;
 623         }
 624         return false;
 625 }
 626
 627 static bool ath9k_hw_macversion_supported(u32 macversion)
 628 {
 629         switch (macversion) {
 630         case AR_SREV_VERSION_5416_PCI:
 631         case AR_SREV_VERSION_5416_PCIE:
 632         case AR_SREV_VERSION_9160:
 633         case AR_SREV_VERSION_9100:
 634         case AR_SREV_VERSION_9280:
 635         case AR_SREV_VERSION_9285:
 636         case AR_SREV_VERSION_9287:
 637                 return true;
 638         /* Not yet */
 639         case AR_SREV_VERSION_9271:
 640         default:
 641                 break;
 642         }
 643         return false;
 644 }
 645
 646 static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
 647 {
 648         if (AR_SREV_9160_10_OR_LATER(ah)) {
 649                 if (AR_SREV_9280_10_OR_LATER(ah)) {
 650                         ah->iq_caldata.calData = &iq_cal_single_sample;
 651                         ah->adcgain_caldata.calData =
 652                                 &adc_gain_cal_single_sample;
 653                         ah->adcdc_caldata.calData =
 654                                 &adc_dc_cal_single_sample;
 655                         ah->adcdc_calinitdata.calData =
 656                                 &adc_init_dc_cal;
 657                 } else {
 658                         ah->iq_caldata.calData = &iq_cal_multi_sample;
 659                         ah->adcgain_caldata.calData =
 660                                 &adc_gain_cal_multi_sample;
 661                         ah->adcdc_caldata.calData =
 662                                 &adc_dc_cal_multi_sample;
 663                         ah->adcdc_calinitdata.calData =
 664                                 &adc_init_dc_cal;
 665                 }
 666                 ah->supp_cals = ADC_GAIN_CAL | ADC_DC_CAL | IQ_MISMATCH_CAL;
 667         }
 668 }
 669
 670 static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
 671 {
 672         if (AR_SREV_9271(ah)) {
 673                 INIT_INI_ARRAY(&ah->iniModes, ar9271Modes_9271_1_0,
 674                                ARRAY_SIZE(ar9271Modes_9271_1_0), 6);
 675                 INIT_INI_ARRAY(&ah->iniCommon, ar9271Common_9271_1_0,
 676                                ARRAY_SIZE(ar9271Common_9271_1_0), 2);
 677                 return;
 678         }
 679
 680         if (AR_SREV_9287_11_OR_LATER(ah)) {
 681                 INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_1,
 682                                 ARRAY_SIZE(ar9287Modes_9287_1_1), 6);
 683                 INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_1,
 684                                 ARRAY_SIZE(ar9287Common_9287_1_1), 2);
 685                 if (ah->config.pcie_clock_req)
 686                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 687                         ar9287PciePhy_clkreq_off_L1_9287_1_1,
 688                         ARRAY_SIZE(ar9287PciePhy_clkreq_off_L1_9287_1_1), 2);
 689                 else
 690                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 691                         ar9287PciePhy_clkreq_always_on_L1_9287_1_1,
 692                         ARRAY_SIZE(ar9287PciePhy_clkreq_always_on_L1_9287_1_1),
 693                                         2);
 694         } else if (AR_SREV_9287_10_OR_LATER(ah)) {
 695                 INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_0,
 696                                 ARRAY_SIZE(ar9287Modes_9287_1_0), 6);
 697                 INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_0,
 698                                 ARRAY_SIZE(ar9287Common_9287_1_0), 2);
 699
 700                 if (ah->config.pcie_clock_req)
 701                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 702                         ar9287PciePhy_clkreq_off_L1_9287_1_0,
 703                         ARRAY_SIZE(ar9287PciePhy_clkreq_off_L1_9287_1_0), 2);
 704                 else
 705                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 706                         ar9287PciePhy_clkreq_always_on_L1_9287_1_0,
 707                         ARRAY_SIZE(ar9287PciePhy_clkreq_always_on_L1_9287_1_0),
 708                                   2);
 709         } else if (AR_SREV_9285_12_OR_LATER(ah)) {
 710
 711
 712                 INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285_1_2,
 713                                ARRAY_SIZE(ar9285Modes_9285_1_2), 6);
 714                 INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285_1_2,
 715                                ARRAY_SIZE(ar9285Common_9285_1_2), 2);
 716
 717                 if (ah->config.pcie_clock_req) {
 718                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 719                         ar9285PciePhy_clkreq_off_L1_9285_1_2,
 720                         ARRAY_SIZE(ar9285PciePhy_clkreq_off_L1_9285_1_2), 2);
 721                 } else {
 722                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 723                         ar9285PciePhy_clkreq_always_on_L1_9285_1_2,
 724                         ARRAY_SIZE(ar9285PciePhy_clkreq_always_on_L1_9285_1_2),
 725                                   2);
 726                 }
 727         } else if (AR_SREV_9285_10_OR_LATER(ah)) {
 728                 INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285,
 729                                ARRAY_SIZE(ar9285Modes_9285), 6);
 730                 INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285,
 731                                ARRAY_SIZE(ar9285Common_9285), 2);
 732
 733                 if (ah->config.pcie_clock_req) {
 734                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 735                         ar9285PciePhy_clkreq_off_L1_9285,
 736                         ARRAY_SIZE(ar9285PciePhy_clkreq_off_L1_9285), 2);
 737                 } else {
 738                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 739                         ar9285PciePhy_clkreq_always_on_L1_9285,
 740                         ARRAY_SIZE(ar9285PciePhy_clkreq_always_on_L1_9285), 2);
 741                 }
 742         } else if (AR_SREV_9280_20_OR_LATER(ah)) {
 743                 INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280_2,
 744                                ARRAY_SIZE(ar9280Modes_9280_2), 6);
 745                 INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280_2,
 746                                ARRAY_SIZE(ar9280Common_9280_2), 2);
 747
 748                 if (ah->config.pcie_clock_req) {
 749                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 750                                ar9280PciePhy_clkreq_off_L1_9280,
 751                                ARRAY_SIZE(ar9280PciePhy_clkreq_off_L1_9280),2);
 752                 } else {
 753                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 754                                ar9280PciePhy_clkreq_always_on_L1_9280,
 755                                ARRAY_SIZE(ar9280PciePhy_clkreq_always_on_L1_9280), 2);
 756                 }
 757                 INIT_INI_ARRAY(&ah->iniModesAdditional,
 758                                ar9280Modes_fast_clock_9280_2,
 759                                ARRAY_SIZE(ar9280Modes_fast_clock_9280_2), 3);
 760         } else if (AR_SREV_9280_10_OR_LATER(ah)) {
 761                 INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280,
 762                                ARRAY_SIZE(ar9280Modes_9280), 6);
 763                 INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280,
 764                                ARRAY_SIZE(ar9280Common_9280), 2);
 765         } else if (AR_SREV_9160_10_OR_LATER(ah)) {
 766                 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9160,
 767                                ARRAY_SIZE(ar5416Modes_9160), 6);
 768                 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9160,
 769                                ARRAY_SIZE(ar5416Common_9160), 2);
 770                 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0_9160,
 771                                ARRAY_SIZE(ar5416Bank0_9160), 2);
 772                 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain_9160,
 773                                ARRAY_SIZE(ar5416BB_RfGain_9160), 3);
 774                 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1_9160,
 775                                ARRAY_SIZE(ar5416Bank1_9160), 2);
 776                 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2_9160,
 777                                ARRAY_SIZE(ar5416Bank2_9160), 2);
 778                 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3_9160,
 779                                ARRAY_SIZE(ar5416Bank3_9160), 3);
 780                 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6_9160,
 781                                ARRAY_SIZE(ar5416Bank6_9160), 3);
 782                 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC_9160,
 783                                ARRAY_SIZE(ar5416Bank6TPC_9160), 3);
 784                 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7_9160,
 785                                ARRAY_SIZE(ar5416Bank7_9160), 2);
 786                 if (AR_SREV_9160_11(ah)) {
 787                         INIT_INI_ARRAY(&ah->iniAddac,
 788                                        ar5416Addac_91601_1,
 789                                        ARRAY_SIZE(ar5416Addac_91601_1), 2);
 790                 } else {
 791                         INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9160,
 792                                        ARRAY_SIZE(ar5416Addac_9160), 2);
 793                 }
 794         } else if (AR_SREV_9100_OR_LATER(ah)) {
 795                 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9100,
 796                                ARRAY_SIZE(ar5416Modes_9100), 6);
 797                 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9100,
 798                                ARRAY_SIZE(ar5416Common_9100), 2);
 799                 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0_9100,
 800                                ARRAY_SIZE(ar5416Bank0_9100), 2);
 801                 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain_9100,
 802                                ARRAY_SIZE(ar5416BB_RfGain_9100), 3);
 803                 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1_9100,
 804                                ARRAY_SIZE(ar5416Bank1_9100), 2);
 805                 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2_9100,
 806                                ARRAY_SIZE(ar5416Bank2_9100), 2);
 807                 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3_9100,
 808                                ARRAY_SIZE(ar5416Bank3_9100), 3);
 809                 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6_9100,
 810                                ARRAY_SIZE(ar5416Bank6_9100), 3);
 811                 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC_9100,
 812                                ARRAY_SIZE(ar5416Bank6TPC_9100), 3);
 813                 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7_9100,
 814                                ARRAY_SIZE(ar5416Bank7_9100), 2);
 815                 INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9100,
 816                                ARRAY_SIZE(ar5416Addac_9100), 2);
 817         } else {
 818                 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes,
 819                                ARRAY_SIZE(ar5416Modes), 6);
 820                 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common,
 821                                ARRAY_SIZE(ar5416Common), 2);
 822                 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0,
 823                                ARRAY_SIZE(ar5416Bank0), 2);
 824                 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain,
 825                                ARRAY_SIZE(ar5416BB_RfGain), 3);
 826                 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1,
 827                                ARRAY_SIZE(ar5416Bank1), 2);
 828                 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2,
 829                                ARRAY_SIZE(ar5416Bank2), 2);
 830                 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3,
 831                                ARRAY_SIZE(ar5416Bank3), 3);
 832                 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6,
 833                                ARRAY_SIZE(ar5416Bank6), 3);
 834                 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC,
 835                                ARRAY_SIZE(ar5416Bank6TPC), 3);
 836                 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7,
 837                                ARRAY_SIZE(ar5416Bank7), 2);
 838                 INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac,
 839                                ARRAY_SIZE(ar5416Addac), 2);
 840         }
 841 }
 842
 843 static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
 844 {
 845         if (AR_SREV_9287_11(ah))
 846                 INIT_INI_ARRAY(&ah->iniModesRxGain,
 847                 ar9287Modes_rx_gain_9287_1_1,
 848                 ARRAY_SIZE(ar9287Modes_rx_gain_9287_1_1), 6);
 849         else if (AR_SREV_9287_10(ah))
 850                 INIT_INI_ARRAY(&ah->iniModesRxGain,
 851                 ar9287Modes_rx_gain_9287_1_0,
 852                 ARRAY_SIZE(ar9287Modes_rx_gain_9287_1_0), 6);
 853         else if (AR_SREV_9280_20(ah))
 854                 ath9k_hw_init_rxgain_ini(ah);
 855
 856         if (AR_SREV_9287_11(ah)) {
 857                 INIT_INI_ARRAY(&ah->iniModesTxGain,
 858                 ar9287Modes_tx_gain_9287_1_1,
 859                 ARRAY_SIZE(ar9287Modes_tx_gain_9287_1_1), 6);
 860         } else if (AR_SREV_9287_10(ah)) {
 861                 INIT_INI_ARRAY(&ah->iniModesTxGain,
 862                 ar9287Modes_tx_gain_9287_1_0,
 863                 ARRAY_SIZE(ar9287Modes_tx_gain_9287_1_0), 6);
 864         } else if (AR_SREV_9280_20(ah)) {
 865                 ath9k_hw_init_txgain_ini(ah);
 866         } else if (AR_SREV_9285_12_OR_LATER(ah)) {
 867                 u32 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);
 868
 869                 /* txgain table */
 870                 if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER) {
 871                         INIT_INI_ARRAY(&ah->iniModesTxGain,
 872                         ar9285Modes_high_power_tx_gain_9285_1_2,
 873                         ARRAY_SIZE(ar9285Modes_high_power_tx_gain_9285_1_2), 6);
 874                 } else {
 875                         INIT_INI_ARRAY(&ah->iniModesTxGain,
 876                         ar9285Modes_original_tx_gain_9285_1_2,
 877                         ARRAY_SIZE(ar9285Modes_original_tx_gain_9285_1_2), 6);
 878                 }
 879
 880         }
 881 }
 882
 883 static void ath9k_hw_init_11a_eeprom_fix(struct ath_hw *ah)
 884 {
 885         u32 i, j;
 886
 887         if ((ah->hw_version.devid == AR9280_DEVID_PCI) &&
 888             test_bit(ATH9K_MODE_11A, ah->caps.wireless_modes)) {
 889
 890                 /* EEPROM Fixup */
 891                 for (i = 0; i < ah->iniModes.ia_rows; i++) {
 892                         u32 reg = INI_RA(&ah->iniModes, i, 0);
 893
 894                         for (j = 1; j < ah->iniModes.ia_columns; j++) {
 895                                 u32 val = INI_RA(&ah->iniModes, i, j);
 896
 897                                 INI_RA(&ah->iniModes, i, j) =
 898                                         ath9k_hw_ini_fixup(ah,
 899                                                            &ah->eeprom.def,
 900                                                            reg, val);
 901                         }
 902                 }
 903         }
 904 }
 905
 906 int ath9k_hw_init(struct ath_hw *ah)
 907 {
 908         int r = 0;
 909
 910         if (!ath9k_hw_devid_supported(ah->hw_version.devid))
 911                 return -EOPNOTSUPP;
 912
 913         ath9k_hw_init_defaults(ah);
 914         ath9k_hw_init_config(ah);
 915
 916         if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
 917                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL, "Couldn't reset chip\n");
 918                 return -EIO;
 919         }
 920
 921         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
 922                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL, "Couldn't wakeup chip\n");
 923                 return -EIO;
 924         }
 925
 926         if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
 927                 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
 928                     (AR_SREV_9280(ah) && !ah->is_pciexpress)) {
 929                         ah->config.serialize_regmode =
 930                                 SER_REG_MODE_ON;
 931                 } else {
 932                         ah->config.serialize_regmode =
 933                                 SER_REG_MODE_OFF;
 934                 }
 935         }
 936
 937         DPRINTF(ah->ah_sc, ATH_DBG_RESET, "serialize_regmode is %d\n",
 938                 ah->config.serialize_regmode);
 939
 940         if (!ath9k_hw_macversion_supported(ah->hw_version.macVersion)) {
 941                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 942                         "Mac Chip Rev 0x%02x.%x is not supported by "
 943                         "this driver\n", ah->hw_version.macVersion,
 944                         ah->hw_version.macRev);
 945                 return -EOPNOTSUPP;
 946         }
 947
 948         if (AR_SREV_9100(ah)) {
 949                 ah->iq_caldata.calData = &iq_cal_multi_sample;
 950                 ah->supp_cals = IQ_MISMATCH_CAL;
 951                 ah->is_pciexpress = false;
 952         }
 953
 954         if (AR_SREV_9271(ah))
 955                 ah->is_pciexpress = false;
 956
 957         ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
 958
 959         ath9k_hw_init_cal_settings(ah);
 960
 961         ah->ani_function = ATH9K_ANI_ALL;
 962         if (AR_SREV_9280_10_OR_LATER(ah))
 963                 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
 964
 965         ath9k_hw_init_mode_regs(ah);
 966
 967         if (ah->is_pciexpress)
 968                 ath9k_hw_configpcipowersave(ah, 0, 0);
 969         else
 970                 ath9k_hw_disablepcie(ah);
 971
 972         r = ath9k_hw_post_init(ah);
 973         if (r)
 974                 return r;
 975
 976         ath9k_hw_init_mode_gain_regs(ah);
 977         ath9k_hw_fill_cap_info(ah);
 978         ath9k_hw_init_11a_eeprom_fix(ah);
 979
 980         r = ath9k_hw_init_macaddr(ah);
 981         if (r) {
 982                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
 983                         "Failed to initialize MAC address\n");
 984                 return r;
 985         }
 986
 987         if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
 988                 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
 989         else
 990                 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
 991
 992         ath9k_init_nfcal_hist_buffer(ah);
 993
 994         return 0;
 995 }
 996
 997 static void ath9k_hw_init_bb(struct ath_hw *ah,
 998                              struct ath9k_channel *chan)
 999 {
1000         u32 synthDelay;
1001
1002         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
1003         if (IS_CHAN_B(chan))
1004                 synthDelay = (4 * synthDelay) / 22;
1005         else
1006                 synthDelay /= 10;
1007
1008         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
1009
1010         udelay(synthDelay + BASE_ACTIVATE_DELAY);
1011 }
1012
1013 static void ath9k_hw_init_qos(struct ath_hw *ah)
1014 {
1015         REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
1016         REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
1017
1018         REG_WRITE(ah, AR_QOS_NO_ACK,
1019                   SM(2, AR_QOS_NO_ACK_TWO_BIT) |
1020                   SM(5, AR_QOS_NO_ACK_BIT_OFF) |
1021                   SM(0, AR_QOS_NO_ACK_BYTE_OFF));
1022
1023         REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
1024         REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
1025         REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
1026         REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
1027         REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
1028 }
1029
1030 static void ath9k_hw_init_pll(struct ath_hw *ah,
1031                               struct ath9k_channel *chan)
1032 {
1033         u32 pll;
1034
1035         if (AR_SREV_9100(ah)) {
1036                 if (chan && IS_CHAN_5GHZ(chan))
1037                         pll = 0x1450;
1038                 else
1039                         pll = 0x1458;
1040         } else {
1041                 if (AR_SREV_9280_10_OR_LATER(ah)) {
1042                         pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
1043
1044                         if (chan && IS_CHAN_HALF_RATE(chan))
1045                                 pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
1046                         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1047                                 pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
1048
1049                         if (chan && IS_CHAN_5GHZ(chan)) {
1050                                 pll |= SM(0x28, AR_RTC_9160_PLL_DIV);
1051
1052
1053                                 if (AR_SREV_9280_20(ah)) {
1054                                         if (((chan->channel % 20) == 0)
1055                                             || ((chan->channel % 10) == 0))
1056                                                 pll = 0x2850;
1057                                         else
1058                                                 pll = 0x142c;
1059                                 }
1060                         } else {
1061                                 pll |= SM(0x2c, AR_RTC_9160_PLL_DIV);
1062                         }
1063
1064                 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1065
1066                         pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
1067
1068                         if (chan && IS_CHAN_HALF_RATE(chan))
1069                                 pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
1070                         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1071                                 pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
1072
1073                         if (chan && IS_CHAN_5GHZ(chan))
1074                                 pll |= SM(0x50, AR_RTC_9160_PLL_DIV);
1075                         else
1076                                 pll |= SM(0x58, AR_RTC_9160_PLL_DIV);
1077                 } else {
1078                         pll = AR_RTC_PLL_REFDIV_5 | AR_RTC_PLL_DIV2;
1079
1080                         if (chan && IS_CHAN_HALF_RATE(chan))
1081                                 pll |= SM(0x1, AR_RTC_PLL_CLKSEL);
1082                         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1083                                 pll |= SM(0x2, AR_RTC_PLL_CLKSEL);
1084
1085                         if (chan && IS_CHAN_5GHZ(chan))
1086                                 pll |= SM(0xa, AR_RTC_PLL_DIV);
1087                         else
1088                                 pll |= SM(0xb, AR_RTC_PLL_DIV);
1089                 }
1090         }
1091         REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
1092
1093         udelay(RTC_PLL_SETTLE_DELAY);
1094
1095         REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
1096 }
1097
1098 static void ath9k_hw_init_chain_masks(struct ath_hw *ah)
1099 {
1100         int rx_chainmask, tx_chainmask;
1101
1102         rx_chainmask = ah->rxchainmask;
1103         tx_chainmask = ah->txchainmask;
1104
1105         switch (rx_chainmask) {
1106         case 0x5:
1107                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
1108                             AR_PHY_SWAP_ALT_CHAIN);
1109         case 0x3:
1110                 if (((ah)->hw_version.macVersion <= AR_SREV_VERSION_9160)) {
1111                         REG_WRITE(ah, AR_PHY_RX_CHAINMASK, 0x7);
1112                         REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, 0x7);
1113                         break;
1114                 }
1115         case 0x1:
1116         case 0x2:
1117         case 0x7:
1118                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
1119                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
1120                 break;
1121         default:
1122                 break;
1123         }
1124
1125         REG_WRITE(ah, AR_SELFGEN_MASK, tx_chainmask);
1126         if (tx_chainmask == 0x5) {
1127                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
1128                             AR_PHY_SWAP_ALT_CHAIN);
1129         }
1130         if (AR_SREV_9100(ah))
1131                 REG_WRITE(ah, AR_PHY_ANALOG_SWAP,
1132                           REG_READ(ah, AR_PHY_ANALOG_SWAP) | 0x00000001);
1133 }
1134
1135 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
1136                                           enum nl80211_iftype opmode)
1137 {
1138         ah->mask_reg = AR_IMR_TXERR |
1139                 AR_IMR_TXURN |
1140                 AR_IMR_RXERR |
1141                 AR_IMR_RXORN |
1142                 AR_IMR_BCNMISC;
1143
1144         if (ah->config.intr_mitigation)
1145                 ah->mask_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
1146         else
1147                 ah->mask_reg |= AR_IMR_RXOK;
1148
1149         ah->mask_reg |= AR_IMR_TXOK;
1150
1151         if (opmode == NL80211_IFTYPE_AP)
1152                 ah->mask_reg |= AR_IMR_MIB;
1153
1154         REG_WRITE(ah, AR_IMR, ah->mask_reg);
1155         REG_WRITE(ah, AR_IMR_S2, REG_READ(ah, AR_IMR_S2) | AR_IMR_S2_GTT);
1156
1157         if (!AR_SREV_9100(ah)) {
1158                 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
1159                 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
1160                 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
1161         }
1162 }
1163
1164 static bool ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
1165 {
1166         if (us > ath9k_hw_mac_to_usec(ah, MS(0xffffffff, AR_TIME_OUT_ACK))) {
1167                 DPRINTF(ah->ah_sc, ATH_DBG_RESET, "bad ack timeout %u\n", us);
1168                 ah->acktimeout = (u32) -1;
1169                 return false;
1170         } else {
1171                 REG_RMW_FIELD(ah, AR_TIME_OUT,
1172                               AR_TIME_OUT_ACK, ath9k_hw_mac_to_clks(ah, us));
1173                 ah->acktimeout = us;
1174                 return true;
1175         }
1176 }
1177
1178 static bool ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
1179 {
1180         if (us > ath9k_hw_mac_to_usec(ah, MS(0xffffffff, AR_TIME_OUT_CTS))) {
1181                 DPRINTF(ah->ah_sc, ATH_DBG_RESET, "bad cts timeout %u\n", us);
1182                 ah->ctstimeout = (u32) -1;
1183                 return false;
1184         } else {
1185                 REG_RMW_FIELD(ah, AR_TIME_OUT,
1186                               AR_TIME_OUT_CTS, ath9k_hw_mac_to_clks(ah, us));
1187                 ah->ctstimeout = us;
1188                 return true;
1189         }
1190 }
1191
1192 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
1193 {
1194         if (tu > 0xFFFF) {
1195                 DPRINTF(ah->ah_sc, ATH_DBG_XMIT,
1196                         "bad global tx timeout %u\n", tu);
1197                 ah->globaltxtimeout = (u32) -1;
1198                 return false;
1199         } else {
1200                 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
1201                 ah->globaltxtimeout = tu;
1202                 return true;
1203         }
1204 }
1205
1206 static void ath9k_hw_init_user_settings(struct ath_hw *ah)
1207 {
1208         DPRINTF(ah->ah_sc, ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
1209                 ah->misc_mode);
1210
1211         if (ah->misc_mode != 0)
1212                 REG_WRITE(ah, AR_PCU_MISC,
1213                           REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
1214         if (ah->slottime != (u32) -1)
1215                 ath9k_hw_setslottime(ah, ah->slottime);
1216         if (ah->acktimeout != (u32) -1)
1217                 ath9k_hw_set_ack_timeout(ah, ah->acktimeout);
1218         if (ah->ctstimeout != (u32) -1)
1219                 ath9k_hw_set_cts_timeout(ah, ah->ctstimeout);
1220         if (ah->globaltxtimeout != (u32) -1)
1221                 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
1222 }
1223
1224 const char *ath9k_hw_probe(u16 vendorid, u16 devid)
1225 {
1226         return vendorid == ATHEROS_VENDOR_ID ?
1227                 ath9k_hw_devname(devid) : NULL;
1228 }
1229
1230 void ath9k_hw_detach(struct ath_hw *ah)
1231 {
1232         if (!AR_SREV_9100(ah))
1233                 ath9k_hw_ani_disable(ah);
1234
1235         ath9k_hw_rf_free(ah);
1236         ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
1237         kfree(ah);
1238         ah = NULL;
1239 }
1240
1241 /*******/
1242 /* INI */
1243 /*******/
1244
1245 static void ath9k_hw_override_ini(struct ath_hw *ah,
1246                                   struct ath9k_channel *chan)
1247 {
1248         u32 val;
1249
1250         if (AR_SREV_9271(ah)) {
1251                 /*
1252                  * Enable spectral scan to solution for issues with stuck
1253                  * beacons on AR9271 1.0. The beacon stuck issue is not seeon on
1254                  * AR9271 1.1
1255                  */
1256                 if (AR_SREV_9271_10(ah)) {
1257                         val = REG_READ(ah, AR_PHY_SPECTRAL_SCAN) | AR_PHY_SPECTRAL_SCAN_ENABLE;
1258                         REG_WRITE(ah, AR_PHY_SPECTRAL_SCAN, val);
1259                 }
1260                 else if (AR_SREV_9271_11(ah))
1261                         /*
1262                          * change AR_PHY_RF_CTL3 setting to fix MAC issue
1263                          * present on AR9271 1.1
1264                          */
1265                         REG_WRITE(ah, AR_PHY_RF_CTL3, 0x3a020001);
1266                 return;
1267         }
1268
1269         /*
1270          * Set the RX_ABORT and RX_DIS and clear if off only after
1271          * RXE is set for MAC. This prevents frames with corrupted
1272          * descriptor status.
1273          */
1274         REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
1275
1276         if (AR_SREV_9280_10_OR_LATER(ah)) {
1277                 val = REG_READ(ah, AR_PCU_MISC_MODE2) &
1278                                (~AR_PCU_MISC_MODE2_HWWAR1);
1279
1280                 if (AR_SREV_9287_10_OR_LATER(ah))
1281                         val = val & (~AR_PCU_MISC_MODE2_HWWAR2);
1282
1283                 REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
1284         }
1285
1286         if (!AR_SREV_5416_20_OR_LATER(ah) ||
1287             AR_SREV_9280_10_OR_LATER(ah))
1288                 return;
1289         /*
1290          * Disable BB clock gating
1291          * Necessary to avoid issues on AR5416 2.0
1292          */
1293         REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
1294 }
1295
1296 static u32 ath9k_hw_def_ini_fixup(struct ath_hw *ah,
1297                               struct ar5416_eeprom_def *pEepData,
1298                               u32 reg, u32 value)
1299 {
1300         struct base_eep_header *pBase = &(pEepData->baseEepHeader);
1301
1302         switch (ah->hw_version.devid) {
1303         case AR9280_DEVID_PCI:
1304                 if (reg == 0x7894) {
1305                         DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
1306                                 "ini VAL: %x  EEPROM: %x\n", value,
1307                                 (pBase->version & 0xff));
1308
1309                         if ((pBase->version & 0xff) > 0x0a) {
1310                                 DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
1311                                         "PWDCLKIND: %d\n",
1312                                         pBase->pwdclkind);
1313                                 value &= ~AR_AN_TOP2_PWDCLKIND;
1314                                 value |= AR_AN_TOP2_PWDCLKIND &
1315                                         (pBase->pwdclkind << AR_AN_TOP2_PWDCLKIND_S);
1316                         } else {
1317                                 DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
1318                                         "PWDCLKIND Earlier Rev\n");
1319                         }
1320
1321                         DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
1322                                 "final ini VAL: %x\n", value);
1323                 }
1324                 break;
1325         }
1326
1327         return value;
1328 }
1329
1330 static u32 ath9k_hw_ini_fixup(struct ath_hw *ah,
1331                               struct ar5416_eeprom_def *pEepData,
1332                               u32 reg, u32 value)
1333 {
1334         if (ah->eep_map == EEP_MAP_4KBITS)
1335                 return value;
1336         else
1337                 return ath9k_hw_def_ini_fixup(ah, pEepData, reg, value);
1338 }
1339
1340 static void ath9k_olc_init(struct ath_hw *ah)
1341 {
1342         u32 i;
1343
1344         if (OLC_FOR_AR9287_10_LATER) {
1345                 REG_SET_BIT(ah, AR_PHY_TX_PWRCTRL9,
1346                                 AR_PHY_TX_PWRCTRL9_RES_DC_REMOVAL);
1347                 ath9k_hw_analog_shift_rmw(ah, AR9287_AN_TXPC0,
1348                                 AR9287_AN_TXPC0_TXPCMODE,
1349                                 AR9287_AN_TXPC0_TXPCMODE_S,
1350                                 AR9287_AN_TXPC0_TXPCMODE_TEMPSENSE);
1351                 udelay(100);
1352         } else {
1353                 for (i = 0; i < AR9280_TX_GAIN_TABLE_SIZE; i++)
1354                         ah->originalGain[i] =
1355                                 MS(REG_READ(ah, AR_PHY_TX_GAIN_TBL1 + i * 4),
1356                                                 AR_PHY_TX_GAIN);
1357                 ah->PDADCdelta = 0;
1358         }
1359 }
1360
1361 static u32 ath9k_regd_get_ctl(struct ath_regulatory *reg,
1362                               struct ath9k_channel *chan)
1363 {
1364         u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
1365
1366         if (IS_CHAN_B(chan))
1367                 ctl |= CTL_11B;
1368         else if (IS_CHAN_G(chan))
1369                 ctl |= CTL_11G;
1370         else
1371                 ctl |= CTL_11A;
1372
1373         return ctl;
1374 }
1375
1376 static int ath9k_hw_process_ini(struct ath_hw *ah,
1377                                 struct ath9k_channel *chan,
1378                                 enum ath9k_ht_macmode macmode)
1379 {
1380         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1381         int i, regWrites = 0;
1382         struct ieee80211_channel *channel = chan->chan;
1383         u32 modesIndex, freqIndex;
1384
1385         switch (chan->chanmode) {
1386         case CHANNEL_A:
1387         case CHANNEL_A_HT20:
1388                 modesIndex = 1;
1389                 freqIndex = 1;
1390                 break;
1391         case CHANNEL_A_HT40PLUS:
1392         case CHANNEL_A_HT40MINUS:
1393                 modesIndex = 2;
1394                 freqIndex = 1;
1395                 break;
1396         case CHANNEL_G:
1397         case CHANNEL_G_HT20:
1398         case CHANNEL_B:
1399                 modesIndex = 4;
1400                 freqIndex = 2;
1401                 break;
1402         case CHANNEL_G_HT40PLUS:
1403         case CHANNEL_G_HT40MINUS:
1404                 modesIndex = 3;
1405                 freqIndex = 2;
1406                 break;
1407
1408         default:
1409                 return -EINVAL;
1410         }
1411
1412         REG_WRITE(ah, AR_PHY(0), 0x00000007);
1413         REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_EXTERNAL_RADIO);
1414         ah->eep_ops->set_addac(ah, chan);
1415
1416         if (AR_SREV_5416_22_OR_LATER(ah)) {
1417                 REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
1418         } else {
1419                 struct ar5416IniArray temp;
1420                 u32 addacSize =
1421                         sizeof(u32) * ah->iniAddac.ia_rows *
1422                         ah->iniAddac.ia_columns;
1423
1424                 memcpy(ah->addac5416_21,
1425                        ah->iniAddac.ia_array, addacSize);
1426
1427                 (ah->addac5416_21)[31 * ah->iniAddac.ia_columns + 1] = 0;
1428
1429                 temp.ia_array = ah->addac5416_21;
1430                 temp.ia_columns = ah->iniAddac.ia_columns;
1431                 temp.ia_rows = ah->iniAddac.ia_rows;
1432                 REG_WRITE_ARRAY(&temp, 1, regWrites);
1433         }
1434
1435         REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC);
1436
1437         for (i = 0; i < ah->iniModes.ia_rows; i++) {
1438                 u32 reg = INI_RA(&ah->iniModes, i, 0);
1439                 u32 val = INI_RA(&ah->iniModes, i, modesIndex);
1440
1441                 REG_WRITE(ah, reg, val);
1442
1443                 if (reg >= 0x7800 && reg < 0x78a0
1444                     && ah->config.analog_shiftreg) {
1445                         udelay(100);
1446                 }
1447
1448                 DO_DELAY(regWrites);
1449         }
1450
1451         if (AR_SREV_9280(ah) || AR_SREV_9287_10_OR_LATER(ah))
1452                 REG_WRITE_ARRAY(&ah->iniModesRxGain, modesIndex, regWrites);
1453
1454         if (AR_SREV_9280(ah) || AR_SREV_9285_12_OR_LATER(ah) ||
1455             AR_SREV_9287_10_OR_LATER(ah))
1456                 REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
1457
1458         for (i = 0; i < ah->iniCommon.ia_rows; i++) {
1459                 u32 reg = INI_RA(&ah->iniCommon, i, 0);
1460                 u32 val = INI_RA(&ah->iniCommon, i, 1);
1461
1462                 REG_WRITE(ah, reg, val);
1463
1464                 if (reg >= 0x7800 && reg < 0x78a0
1465                     && ah->config.analog_shiftreg) {
1466                         udelay(100);
1467                 }
1468
1469                 DO_DELAY(regWrites);
1470         }
1471
1472         ath9k_hw_write_regs(ah, modesIndex, freqIndex, regWrites);
1473
1474         if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan)) {
1475                 REG_WRITE_ARRAY(&ah->iniModesAdditional, modesIndex,
1476                                 regWrites);
1477         }
1478
1479         ath9k_hw_override_ini(ah, chan);
1480         ath9k_hw_set_regs(ah, chan, macmode);
1481         ath9k_hw_init_chain_masks(ah);
1482
1483         if (OLC_FOR_AR9280_20_LATER)
1484                 ath9k_olc_init(ah);
1485
1486         ah->eep_ops->set_txpower(ah, chan,
1487                                  ath9k_regd_get_ctl(regulatory, chan),
1488                                  channel->max_antenna_gain * 2,
1489                                  channel->max_power * 2,
1490                                  min((u32) MAX_RATE_POWER,
1491                                  (u32) regulatory->power_limit));
1492
1493         if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
1494                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
1495                         "ar5416SetRfRegs failed\n");
1496                 return -EIO;
1497         }
1498
1499         return 0;
1500 }
1501
1502 /****************************************/
1503 /* Reset and Channel Switching Routines */
1504 /****************************************/
1505
1506 static void ath9k_hw_set_rfmode(struct ath_hw *ah, struct ath9k_channel *chan)
1507 {
1508         u32 rfMode = 0;
1509
1510         if (chan == NULL)
1511                 return;
1512
1513         rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
1514                 ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
1515
1516         if (!AR_SREV_9280_10_OR_LATER(ah))
1517                 rfMode |= (IS_CHAN_5GHZ(chan)) ?
1518                         AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ;
1519
1520         if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan))
1521                 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
1522
1523         REG_WRITE(ah, AR_PHY_MODE, rfMode);
1524 }
1525
1526 static void ath9k_hw_mark_phy_inactive(struct ath_hw *ah)
1527 {
1528         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
1529 }
1530
1531 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
1532 {
1533         u32 regval;
1534
1535         /*
1536          * set AHB_MODE not to do cacheline prefetches
1537         */
1538         regval = REG_READ(ah, AR_AHB_MODE);
1539         REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
1540
1541         /*
1542          * let mac dma reads be in 128 byte chunks
1543          */
1544         regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
1545         REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
1546
1547         /*
1548          * Restore TX Trigger Level to its pre-reset value.
1549          * The initial value depends on whether aggregation is enabled, and is
1550          * adjusted whenever underruns are detected.
1551          */
1552         REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
1553
1554         /*
1555          * let mac dma writes be in 128 byte chunks
1556          */
1557         regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
1558         REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
1559
1560         /*
1561          * Setup receive FIFO threshold to hold off TX activities
1562          */
1563         REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
1564
1565         /*
1566          * reduce the number of usable entries in PCU TXBUF to avoid
1567          * wrap around issues.
1568          */
1569         if (AR_SREV_9285(ah)) {
1570                 /* For AR9285 the number of Fifos are reduced to half.
1571                  * So set the usable tx buf size also to half to
1572                  * avoid data/delimiter underruns
1573                  */
1574                 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1575                           AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
1576         } else if (!AR_SREV_9271(ah)) {
1577                 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1578                           AR_PCU_TXBUF_CTRL_USABLE_SIZE);
1579         }
1580 }
1581
1582 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
1583 {
1584         u32 val;
1585
1586         val = REG_READ(ah, AR_STA_ID1);
1587         val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
1588         switch (opmode) {
1589         case NL80211_IFTYPE_AP:
1590                 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
1591                           | AR_STA_ID1_KSRCH_MODE);
1592                 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1593                 break;
1594         case NL80211_IFTYPE_ADHOC:
1595         case NL80211_IFTYPE_MESH_POINT:
1596                 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
1597                           | AR_STA_ID1_KSRCH_MODE);
1598                 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1599                 break;
1600         case NL80211_IFTYPE_STATION:
1601         case NL80211_IFTYPE_MONITOR:
1602                 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
1603                 break;
1604         }
1605 }
1606
1607 static inline void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah,
1608                                                  u32 coef_scaled,
1609                                                  u32 *coef_mantissa,
1610                                                  u32 *coef_exponent)
1611 {
1612         u32 coef_exp, coef_man;
1613
1614         for (coef_exp = 31; coef_exp > 0; coef_exp--)
1615                 if ((coef_scaled >> coef_exp) & 0x1)
1616                         break;
1617
1618         coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1619
1620         coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1621
1622         *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1623         *coef_exponent = coef_exp - 16;
1624 }
1625
1626 static void ath9k_hw_set_delta_slope(struct ath_hw *ah,
1627                                      struct ath9k_channel *chan)
1628 {
1629         u32 coef_scaled, ds_coef_exp, ds_coef_man;
1630         u32 clockMhzScaled = 0x64000000;
1631         struct chan_centers centers;
1632
1633         if (IS_CHAN_HALF_RATE(chan))
1634                 clockMhzScaled = clockMhzScaled >> 1;
1635         else if (IS_CHAN_QUARTER_RATE(chan))
1636                 clockMhzScaled = clockMhzScaled >> 2;
1637
1638         ath9k_hw_get_channel_centers(ah, chan, &centers);
1639         coef_scaled = clockMhzScaled / centers.synth_center;
1640
1641         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
1642                                       &ds_coef_exp);
1643
1644         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
1645                       AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
1646         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
1647                       AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
1648
1649         coef_scaled = (9 * coef_scaled) / 10;
1650
1651         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
1652                                       &ds_coef_exp);
1653
1654         REG_RMW_FIELD(ah, AR_PHY_HALFGI,
1655                       AR_PHY_HALFGI_DSC_MAN, ds_coef_man);
1656         REG_RMW_FIELD(ah, AR_PHY_HALFGI,
1657                       AR_PHY_HALFGI_DSC_EXP, ds_coef_exp);
1658 }
1659
1660 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1661 {
1662         u32 rst_flags;
1663         u32 tmpReg;
1664
1665         if (AR_SREV_9100(ah)) {
1666                 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
1667                 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
1668                 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
1669                 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
1670                 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1671         }
1672
1673         REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1674                   AR_RTC_FORCE_WAKE_ON_INT);
1675
1676         if (AR_SREV_9100(ah)) {
1677                 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1678                         AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1679         } else {
1680                 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1681                 if (tmpReg &
1682                     (AR_INTR_SYNC_LOCAL_TIMEOUT |
1683                      AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1684                         REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1685                         REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1686                 } else {
1687                         REG_WRITE(ah, AR_RC, AR_RC_AHB);
1688                 }
1689
1690                 rst_flags = AR_RTC_RC_MAC_WARM;
1691                 if (type == ATH9K_RESET_COLD)
1692                         rst_flags |= AR_RTC_RC_MAC_COLD;
1693         }
1694
1695         REG_WRITE(ah, AR_RTC_RC, rst_flags);
1696         udelay(50);
1697
1698         REG_WRITE(ah, AR_RTC_RC, 0);
1699         if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1700                 DPRINTF(ah->ah_sc, ATH_DBG_RESET,
1701                         "RTC stuck in MAC reset\n");
1702                 return false;
1703         }
1704
1705         if (!AR_SREV_9100(ah))
1706                 REG_WRITE(ah, AR_RC, 0);
1707
1708         ath9k_hw_init_pll(ah, NULL);
1709
1710         if (AR_SREV_9100(ah))
1711                 udelay(50);
1712
1713         return true;
1714 }
1715
1716 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1717 {
1718         REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1719                   AR_RTC_FORCE_WAKE_ON_INT);
1720
1721         if (!AR_SREV_9100(ah))
1722                 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1723
1724         REG_WRITE(ah, AR_RTC_RESET, 0);
1725         udelay(2);
1726
1727         if (!AR_SREV_9100(ah))
1728                 REG_WRITE(ah, AR_RC, 0);
1729
1730         REG_WRITE(ah, AR_RTC_RESET, 1);
1731
1732         if (!ath9k_hw_wait(ah,
1733                            AR_RTC_STATUS,
1734                            AR_RTC_STATUS_M,
1735                            AR_RTC_STATUS_ON,
1736                            AH_WAIT_TIMEOUT)) {
1737                 DPRINTF(ah->ah_sc, ATH_DBG_RESET, "RTC not waking up\n");
1738                 return false;
1739         }
1740
1741         ath9k_hw_read_revisions(ah);
1742
1743         return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1744 }
1745
1746 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1747 {
1748         REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1749                   AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1750
1751         switch (type) {
1752         case ATH9K_RESET_POWER_ON:
1753                 return ath9k_hw_set_reset_power_on(ah);
1754         case ATH9K_RESET_WARM:
1755         case ATH9K_RESET_COLD:
1756                 return ath9k_hw_set_reset(ah, type);
1757         default:
1758                 return false;
1759         }
1760 }
1761
1762 static void ath9k_hw_set_regs(struct ath_hw *ah, struct ath9k_channel *chan,
1763                               enum ath9k_ht_macmode macmode)
1764 {
1765         u32 phymode;
1766         u32 enableDacFifo = 0;
1767
1768         if (AR_SREV_9285_10_OR_LATER(ah))
1769                 enableDacFifo = (REG_READ(ah, AR_PHY_TURBO) &
1770                                          AR_PHY_FC_ENABLE_DAC_FIFO);
1771
1772         phymode = AR_PHY_FC_HT_EN | AR_PHY_FC_SHORT_GI_40
1773                 | AR_PHY_FC_SINGLE_HT_LTF1 | AR_PHY_FC_WALSH | enableDacFifo;
1774
1775         if (IS_CHAN_HT40(chan)) {
1776                 phymode |= AR_PHY_FC_DYN2040_EN;
1777
1778                 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
1779                     (chan->chanmode == CHANNEL_G_HT40PLUS))
1780                         phymode |= AR_PHY_FC_DYN2040_PRI_CH;
1781
1782                 if (ah->extprotspacing == ATH9K_HT_EXTPROTSPACING_25)
1783                         phymode |= AR_PHY_FC_DYN2040_EXT_CH;
1784         }
1785         REG_WRITE(ah, AR_PHY_TURBO, phymode);
1786
1787         ath9k_hw_set11nmac2040(ah, macmode);
1788
1789         REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
1790         REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
1791 }
1792
1793 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1794                                 struct ath9k_channel *chan)
1795 {
1796         if (OLC_FOR_AR9280_20_LATER) {
1797                 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1798                         return false;
1799         } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1800                 return false;
1801
1802         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1803                 return false;
1804
1805         ah->chip_fullsleep = false;
1806         ath9k_hw_init_pll(ah, chan);
1807         ath9k_hw_set_rfmode(ah, chan);
1808
1809         return true;
1810 }
1811
1812 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1813                                     struct ath9k_channel *chan,
1814                                     enum ath9k_ht_macmode macmode)
1815 {
1816         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1817         struct ieee80211_channel *channel = chan->chan;
1818         u32 synthDelay, qnum;
1819
1820         for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1821                 if (ath9k_hw_numtxpending(ah, qnum)) {
1822                         DPRINTF(ah->ah_sc, ATH_DBG_QUEUE,
1823                                 "Transmit frames pending on queue %d\n", qnum);
1824                         return false;
1825                 }
1826         }
1827
1828         REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
1829         if (!ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
1830                            AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT)) {
1831                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
1832                         "Could not kill baseband RX\n");
1833                 return false;
1834         }
1835
1836         ath9k_hw_set_regs(ah, chan, macmode);
1837
1838         if (AR_SREV_9280_10_OR_LATER(ah)) {
1839                 ath9k_hw_ar9280_set_channel(ah, chan);
1840         } else {
1841                 if (!(ath9k_hw_set_channel(ah, chan))) {
1842                         DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
1843                                 "Failed to set channel\n");
1844                         return false;
1845                 }
1846         }
1847
1848         ah->eep_ops->set_txpower(ah, chan,
1849                              ath9k_regd_get_ctl(regulatory, chan),
1850                              channel->max_antenna_gain * 2,
1851                              channel->max_power * 2,
1852                              min((u32) MAX_RATE_POWER,
1853                              (u32) regulatory->power_limit));
1854
1855         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
1856         if (IS_CHAN_B(chan))
1857                 synthDelay = (4 * synthDelay) / 22;
1858         else
1859                 synthDelay /= 10;
1860
1861         udelay(synthDelay + BASE_ACTIVATE_DELAY);
1862
1863         REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
1864
1865         if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1866                 ath9k_hw_set_delta_slope(ah, chan);
1867
1868         if (AR_SREV_9280_10_OR_LATER(ah))
1869                 ath9k_hw_9280_spur_mitigate(ah, chan);
1870         else
1871                 ath9k_hw_spur_mitigate(ah, chan);
1872
1873         if (!chan->oneTimeCalsDone)
1874                 chan->oneTimeCalsDone = true;
1875
1876         return true;
1877 }
1878
1879 static void ath9k_hw_9280_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan)
1880 {
1881         int bb_spur = AR_NO_SPUR;
1882         int freq;
1883         int bin, cur_bin;
1884         int bb_spur_off, spur_subchannel_sd;
1885         int spur_freq_sd;
1886         int spur_delta_phase;
1887         int denominator;
1888         int upper, lower, cur_vit_mask;
1889         int tmp, newVal;
1890         int i;
1891         int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
1892                           AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
1893         };
1894         int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
1895                          AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
1896         };
1897         int inc[4] = { 0, 100, 0, 0 };
1898         struct chan_centers centers;
1899
1900         int8_t mask_m[123];
1901         int8_t mask_p[123];
1902         int8_t mask_amt;
1903         int tmp_mask;
1904         int cur_bb_spur;
1905         bool is2GHz = IS_CHAN_2GHZ(chan);
1906
1907         memset(&mask_m, 0, sizeof(int8_t) * 123);
1908         memset(&mask_p, 0, sizeof(int8_t) * 123);
1909
1910         ath9k_hw_get_channel_centers(ah, chan, &centers);
1911         freq = centers.synth_center;
1912
1913         ah->config.spurmode = SPUR_ENABLE_EEPROM;
1914         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
1915                 cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
1916
1917                 if (is2GHz)
1918                         cur_bb_spur = (cur_bb_spur / 10) + AR_BASE_FREQ_2GHZ;
1919                 else
1920                         cur_bb_spur = (cur_bb_spur / 10) + AR_BASE_FREQ_5GHZ;
1921
1922                 if (AR_NO_SPUR == cur_bb_spur)
1923                         break;
1924                 cur_bb_spur = cur_bb_spur - freq;
1925
1926                 if (IS_CHAN_HT40(chan)) {
1927                         if ((cur_bb_spur > -AR_SPUR_FEEQ_BOUND_HT40) &&
1928                             (cur_bb_spur < AR_SPUR_FEEQ_BOUND_HT40)) {
1929                                 bb_spur = cur_bb_spur;
1930                                 break;
1931                         }
1932                 } else if ((cur_bb_spur > -AR_SPUR_FEEQ_BOUND_HT20) &&
1933                            (cur_bb_spur < AR_SPUR_FEEQ_BOUND_HT20)) {
1934                         bb_spur = cur_bb_spur;
1935                         break;
1936                 }
1937         }
1938
1939         if (AR_NO_SPUR == bb_spur) {
1940                 REG_CLR_BIT(ah, AR_PHY_FORCE_CLKEN_CCK,
1941                             AR_PHY_FORCE_CLKEN_CCK_MRC_MUX);
1942                 return;
1943         } else {
1944                 REG_CLR_BIT(ah, AR_PHY_FORCE_CLKEN_CCK,
1945                             AR_PHY_FORCE_CLKEN_CCK_MRC_MUX);
1946         }
1947
1948         bin = bb_spur * 320;
1949
1950         tmp = REG_READ(ah, AR_PHY_TIMING_CTRL4(0));
1951
1952         newVal = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
1953                         AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
1954                         AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
1955                         AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
1956         REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), newVal);
1957
1958         newVal = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
1959                   AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
1960                   AR_PHY_SPUR_REG_MASK_RATE_SELECT |
1961                   AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
1962                   SM(SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
1963         REG_WRITE(ah, AR_PHY_SPUR_REG, newVal);
1964
1965         if (IS_CHAN_HT40(chan)) {
1966                 if (bb_spur < 0) {
1967                         spur_subchannel_sd = 1;
1968                         bb_spur_off = bb_spur + 10;
1969                 } else {
1970                         spur_subchannel_sd = 0;
1971                         bb_spur_off = bb_spur - 10;
1972                 }
1973         } else {
1974                 spur_subchannel_sd = 0;
1975                 bb_spur_off = bb_spur;
1976         }
1977
1978         if (IS_CHAN_HT40(chan))
1979                 spur_delta_phase =
1980                         ((bb_spur * 262144) /
1981                          10) & AR_PHY_TIMING11_SPUR_DELTA_PHASE;
1982         else
1983                 spur_delta_phase =
1984                         ((bb_spur * 524288) /
1985                          10) & AR_PHY_TIMING11_SPUR_DELTA_PHASE;
1986
1987         denominator = IS_CHAN_2GHZ(chan) ? 44 : 40;
1988         spur_freq_sd = ((bb_spur_off * 2048) / denominator) & 0x3ff;
1989
1990         newVal = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
1991                   SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
1992                   SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
1993         REG_WRITE(ah, AR_PHY_TIMING11, newVal);
1994
1995         newVal = spur_subchannel_sd << AR_PHY_SFCORR_SPUR_SUBCHNL_SD_S;
1996         REG_WRITE(ah, AR_PHY_SFCORR_EXT, newVal);
1997
1998         cur_bin = -6000;
1999         upper = bin + 100;
2000         lower = bin - 100;
2001
2002         for (i = 0; i < 4; i++) {
2003                 int pilot_mask = 0;
2004                 int chan_mask = 0;
2005                 int bp = 0;
2006                 for (bp = 0; bp < 30; bp++) {
2007                         if ((cur_bin > lower) && (cur_bin < upper)) {
2008                                 pilot_mask = pilot_mask | 0x1 << bp;
2009                                 chan_mask = chan_mask | 0x1 << bp;
2010                         }
2011                         cur_bin += 100;
2012                 }
2013                 cur_bin += inc[i];
2014                 REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
2015                 REG_WRITE(ah, chan_mask_reg[i], chan_mask);
2016         }
2017
2018         cur_vit_mask = 6100;
2019         upper = bin + 120;
2020         lower = bin - 120;
2021
2022         for (i = 0; i < 123; i++) {
2023                 if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
2024
2025                         /* workaround for gcc bug #37014 */
2026                         volatile int tmp_v = abs(cur_vit_mask - bin);
2027
2028                         if (tmp_v < 75)
2029                                 mask_amt = 1;
2030                         else
2031                                 mask_amt = 0;
2032                         if (cur_vit_mask < 0)
2033                                 mask_m[abs(cur_vit_mask / 100)] = mask_amt;
2034                         else
2035                                 mask_p[cur_vit_mask / 100] = mask_amt;
2036                 }
2037                 cur_vit_mask -= 100;
2038         }
2039
2040         tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
2041                 | (mask_m[48] << 26) | (mask_m[49] << 24)
2042                 | (mask_m[50] << 22) | (mask_m[51] << 20)
2043                 | (mask_m[52] << 18) | (mask_m[53] << 16)
2044                 | (mask_m[54] << 14) | (mask_m[55] << 12)
2045                 | (mask_m[56] << 10) | (mask_m[57] << 8)
2046                 | (mask_m[58] << 6) | (mask_m[59] << 4)
2047                 | (mask_m[60] << 2) | (mask_m[61] << 0);
2048         REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
2049         REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
2050
2051         tmp_mask = (mask_m[31] << 28)
2052                 | (mask_m[32] << 26) | (mask_m[33] << 24)
2053                 | (mask_m[34] << 22) | (mask_m[35] << 20)
2054                 | (mask_m[36] << 18) | (mask_m[37] << 16)
2055                 | (mask_m[48] << 14) | (mask_m[39] << 12)
2056                 | (mask_m[40] << 10) | (mask_m[41] << 8)
2057                 | (mask_m[42] << 6) | (mask_m[43] << 4)
2058                 | (mask_m[44] << 2) | (mask_m[45] << 0);
2059         REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
2060         REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
2061
2062         tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
2063                 | (mask_m[18] << 26) | (mask_m[18] << 24)
2064                 | (mask_m[20] << 22) | (mask_m[20] << 20)
2065                 | (mask_m[22] << 18) | (mask_m[22] << 16)
2066                 | (mask_m[24] << 14) | (mask_m[24] << 12)
2067                 | (mask_m[25] << 10) | (mask_m[26] << 8)
2068                 | (mask_m[27] << 6) | (mask_m[28] << 4)
2069                 | (mask_m[29] << 2) | (mask_m[30] << 0);
2070         REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
2071         REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
2072
2073         tmp_mask = (mask_m[0] << 30) | (mask_m[1] << 28)
2074                 | (mask_m[2] << 26) | (mask_m[3] << 24)
2075                 | (mask_m[4] << 22) | (mask_m[5] << 20)
2076                 | (mask_m[6] << 18) | (mask_m[7] << 16)
2077                 | (mask_m[8] << 14) | (mask_m[9] << 12)
2078                 | (mask_m[10] << 10) | (mask_m[11] << 8)
2079                 | (mask_m[12] << 6) | (mask_m[13] << 4)
2080                 | (mask_m[14] << 2) | (mask_m[15] << 0);
2081         REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
2082         REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
2083
2084         tmp_mask = (mask_p[15] << 28)
2085                 | (mask_p[14] << 26) | (mask_p[13] << 24)
2086                 | (mask_p[12] << 22) | (mask_p[11] << 20)
2087                 | (mask_p[10] << 18) | (mask_p[9] << 16)
2088                 | (mask_p[8] << 14) | (mask_p[7] << 12)
2089                 | (mask_p[6] << 10) | (mask_p[5] << 8)
2090                 | (mask_p[4] << 6) | (mask_p[3] << 4)
2091                 | (mask_p[2] << 2) | (mask_p[1] << 0);
2092         REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
2093         REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
2094
2095         tmp_mask = (mask_p[30] << 28)
2096                 | (mask_p[29] << 26) | (mask_p[28] << 24)
2097                 | (mask_p[27] << 22) | (mask_p[26] << 20)
2098                 | (mask_p[25] << 18) | (mask_p[24] << 16)
2099                 | (mask_p[23] << 14) | (mask_p[22] << 12)
2100                 | (mask_p[21] << 10) | (mask_p[20] << 8)
2101                 | (mask_p[19] << 6) | (mask_p[18] << 4)
2102                 | (mask_p[17] << 2) | (mask_p[16] << 0);
2103         REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
2104         REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
2105
2106         tmp_mask = (mask_p[45] << 28)
2107                 | (mask_p[44] << 26) | (mask_p[43] << 24)
2108                 | (mask_p[42] << 22) | (mask_p[41] << 20)
2109                 | (mask_p[40] << 18) | (mask_p[39] << 16)
2110                 | (mask_p[38] << 14) | (mask_p[37] << 12)
2111                 | (mask_p[36] << 10) | (mask_p[35] << 8)
2112                 | (mask_p[34] << 6) | (mask_p[33] << 4)
2113                 | (mask_p[32] << 2) | (mask_p[31] << 0);
2114         REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
2115         REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
2116
2117         tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
2118                 | (mask_p[59] << 26) | (mask_p[58] << 24)
2119                 | (mask_p[57] << 22) | (mask_p[56] << 20)
2120                 | (mask_p[55] << 18) | (mask_p[54] << 16)
2121                 | (mask_p[53] << 14) | (mask_p[52] << 12)
2122                 | (mask_p[51] << 10) | (mask_p[50] << 8)
2123                 | (mask_p[49] << 6) | (mask_p[48] << 4)
2124                 | (mask_p[47] << 2) | (mask_p[46] << 0);
2125         REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
2126         REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
2127 }
2128
2129 static void ath9k_hw_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan)
2130 {
2131         int bb_spur = AR_NO_SPUR;
2132         int bin, cur_bin;
2133         int spur_freq_sd;
2134         int spur_delta_phase;
2135         int denominator;
2136         int upper, lower, cur_vit_mask;
2137         int tmp, new;
2138         int i;
2139         int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
2140                           AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
2141         };
2142         int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
2143                          AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
2144         };
2145         int inc[4] = { 0, 100, 0, 0 };
2146
2147         int8_t mask_m[123];
2148         int8_t mask_p[123];
2149         int8_t mask_amt;
2150         int tmp_mask;
2151         int cur_bb_spur;
2152         bool is2GHz = IS_CHAN_2GHZ(chan);
2153
2154         memset(&mask_m, 0, sizeof(int8_t) * 123);
2155         memset(&mask_p, 0, sizeof(int8_t) * 123);
2156
2157         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
2158                 cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
2159                 if (AR_NO_SPUR == cur_bb_spur)
2160                         break;
2161                 cur_bb_spur = cur_bb_spur - (chan->channel * 10);
2162                 if ((cur_bb_spur > -95) && (cur_bb_spur < 95)) {
2163                         bb_spur = cur_bb_spur;
2164                         break;
2165                 }
2166         }
2167
2168         if (AR_NO_SPUR == bb_spur)
2169                 return;
2170
2171         bin = bb_spur * 32;
2172
2173         tmp = REG_READ(ah, AR_PHY_TIMING_CTRL4(0));
2174         new = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
2175                      AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
2176                      AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
2177                      AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
2178
2179         REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), new);
2180
2181         new = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
2182                AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
2183                AR_PHY_SPUR_REG_MASK_RATE_SELECT |
2184                AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
2185                SM(SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
2186         REG_WRITE(ah, AR_PHY_SPUR_REG, new);
2187
2188         spur_delta_phase = ((bb_spur * 524288) / 100) &
2189                 AR_PHY_TIMING11_SPUR_DELTA_PHASE;
2190
2191         denominator = IS_CHAN_2GHZ(chan) ? 440 : 400;
2192         spur_freq_sd = ((bb_spur * 2048) / denominator) & 0x3ff;
2193
2194         new = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
2195                SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
2196                SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
2197         REG_WRITE(ah, AR_PHY_TIMING11, new);
2198
2199         cur_bin = -6000;
2200         upper = bin + 100;
2201         lower = bin - 100;
2202
2203         for (i = 0; i < 4; i++) {
2204                 int pilot_mask = 0;
2205                 int chan_mask = 0;
2206                 int bp = 0;
2207                 for (bp = 0; bp < 30; bp++) {
2208                         if ((cur_bin > lower) && (cur_bin < upper)) {
2209                                 pilot_mask = pilot_mask | 0x1 << bp;
2210                                 chan_mask = chan_mask | 0x1 << bp;
2211                         }
2212                         cur_bin += 100;
2213                 }
2214                 cur_bin += inc[i];
2215                 REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
2216                 REG_WRITE(ah, chan_mask_reg[i], chan_mask);
2217         }
2218
2219         cur_vit_mask = 6100;
2220         upper = bin + 120;
2221         lower = bin - 120;
2222
2223         for (i = 0; i < 123; i++) {
2224                 if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
2225
2226                         /* workaround for gcc bug #37014 */
2227                         volatile int tmp_v = abs(cur_vit_mask - bin);
2228
2229                         if (tmp_v < 75)
2230                                 mask_amt = 1;
2231                         else
2232                                 mask_amt = 0;
2233                         if (cur_vit_mask < 0)
2234                                 mask_m[abs(cur_vit_mask / 100)] = mask_amt;
2235                         else
2236                                 mask_p[cur_vit_mask / 100] = mask_amt;
2237                 }
2238                 cur_vit_mask -= 100;
2239         }
2240
2241         tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
2242                 | (mask_m[48] << 26) | (mask_m[49] << 24)
2243                 | (mask_m[50] << 22) | (mask_m[51] << 20)
2244                 | (mask_m[52] << 18) | (mask_m[53] << 16)
2245                 | (mask_m[54] << 14) | (mask_m[55] << 12)
2246                 | (mask_m[56] << 10) | (mask_m[57] << 8)
2247                 | (mask_m[58] << 6) | (mask_m[59] << 4)
2248                 | (mask_m[60] << 2) | (mask_m[61] << 0);
2249         REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
2250         REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
2251
2252         tmp_mask = (mask_m[31] << 28)
2253                 | (mask_m[32] << 26) | (mask_m[33] << 24)
2254                 | (mask_m[34] << 22) | (mask_m[35] << 20)
2255                 | (mask_m[36] << 18) | (mask_m[37] << 16)
2256                 | (mask_m[48] << 14) | (mask_m[39] << 12)
2257                 | (mask_m[40] << 10) | (mask_m[41] << 8)
2258                 | (mask_m[42] << 6) | (mask_m[43] << 4)
2259                 | (mask_m[44] << 2) | (mask_m[45] << 0);
2260         REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
2261         REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
2262
2263         tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
2264                 | (mask_m[18] << 26) | (mask_m[18] << 24)
2265                 | (mask_m[20] << 22) | (mask_m[20] << 20)
2266                 | (mask_m[22] << 18) | (mask_m[22] << 16)
2267                 | (mask_m[24] << 14) | (mask_m[24] << 12)
2268                 | (mask_m[25] << 10) | (mask_m[26] << 8)
2269                 | (mask_m[27] << 6) | (mask_m[28] << 4)
2270                 | (mask_m[29] << 2) | (mask_m[30] << 0);
2271         REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
2272         REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
2273
2274         tmp_mask = (mask_m[0] << 30) | (mask_m[1] << 28)
2275                 | (mask_m[2] << 26) | (mask_m[3] << 24)
2276                 | (mask_m[4] << 22) | (mask_m[5] << 20)
2277                 | (mask_m[6] << 18) | (mask_m[7] << 16)
2278                 | (mask_m[8] << 14) | (mask_m[9] << 12)
2279                 | (mask_m[10] << 10) | (mask_m[11] << 8)
2280                 | (mask_m[12] << 6) | (mask_m[13] << 4)
2281                 | (mask_m[14] << 2) | (mask_m[15] << 0);
2282         REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
2283         REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
2284
2285         tmp_mask = (mask_p[15] << 28)
2286                 | (mask_p[14] << 26) | (mask_p[13] << 24)
2287                 | (mask_p[12] << 22) | (mask_p[11] << 20)
2288                 | (mask_p[10] << 18) | (mask_p[9] << 16)
2289                 | (mask_p[8] << 14) | (mask_p[7] << 12)
2290                 | (mask_p[6] << 10) | (mask_p[5] << 8)
2291                 | (mask_p[4] << 6) | (mask_p[3] << 4)
2292                 | (mask_p[2] << 2) | (mask_p[1] << 0);
2293         REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
2294         REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
2295
2296         tmp_mask = (mask_p[30] << 28)
2297                 | (mask_p[29] << 26) | (mask_p[28] << 24)
2298                 | (mask_p[27] << 22) | (mask_p[26] << 20)
2299                 | (mask_p[25] << 18) | (mask_p[24] << 16)
2300                 | (mask_p[23] << 14) | (mask_p[22] << 12)
2301                 | (mask_p[21] << 10) | (mask_p[20] << 8)
2302                 | (mask_p[19] << 6) | (mask_p[18] << 4)
2303                 | (mask_p[17] << 2) | (mask_p[16] << 0);
2304         REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
2305         REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
2306
2307         tmp_mask = (mask_p[45] << 28)
2308                 | (mask_p[44] << 26) | (mask_p[43] << 24)
2309                 | (mask_p[42] << 22) | (mask_p[41] << 20)
2310                 | (mask_p[40] << 18) | (mask_p[39] << 16)
2311                 | (mask_p[38] << 14) | (mask_p[37] << 12)
2312                 | (mask_p[36] << 10) | (mask_p[35] << 8)
2313                 | (mask_p[34] << 6) | (mask_p[33] << 4)
2314                 | (mask_p[32] << 2) | (mask_p[31] << 0);
2315         REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
2316         REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
2317
2318         tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
2319                 | (mask_p[59] << 26) | (mask_p[58] << 24)
2320                 | (mask_p[57] << 22) | (mask_p[56] << 20)
2321                 | (mask_p[55] << 18) | (mask_p[54] << 16)
2322                 | (mask_p[53] << 14) | (mask_p[52] << 12)
2323                 | (mask_p[51] << 10) | (mask_p[50] << 8)
2324                 | (mask_p[49] << 6) | (mask_p[48] << 4)
2325                 | (mask_p[47] << 2) | (mask_p[46] << 0);
2326         REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
2327         REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
2328 }
2329
2330 static void ath9k_enable_rfkill(struct ath_hw *ah)
2331 {
2332         REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
2333                     AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
2334
2335         REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
2336                     AR_GPIO_INPUT_MUX2_RFSILENT);
2337
2338         ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
2339         REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
2340 }
2341
2342 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
2343                     bool bChannelChange)
2344 {
2345         u32 saveLedState;
2346         struct ath_softc *sc = ah->ah_sc;
2347         struct ath9k_channel *curchan = ah->curchan;
2348         u32 saveDefAntenna;
2349         u32 macStaId1;
2350         u64 tsf = 0;
2351         int i, rx_chainmask, r;
2352
2353         ah->extprotspacing = sc->ht_extprotspacing;
2354         ah->txchainmask = sc->tx_chainmask;
2355         ah->rxchainmask = sc->rx_chainmask;
2356
2357         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2358                 return -EIO;
2359
2360         if (curchan && !ah->chip_fullsleep)
2361                 ath9k_hw_getnf(ah, curchan);
2362
2363         if (bChannelChange &&
2364             (ah->chip_fullsleep != true) &&
2365             (ah->curchan != NULL) &&
2366             (chan->channel != ah->curchan->channel) &&
2367             ((chan->channelFlags & CHANNEL_ALL) ==
2368              (ah->curchan->channelFlags & CHANNEL_ALL)) &&
2369             (!AR_SREV_9280(ah) || (!IS_CHAN_A_5MHZ_SPACED(chan) &&
2370                                    !IS_CHAN_A_5MHZ_SPACED(ah->curchan)))) {
2371
2372                 if (ath9k_hw_channel_change(ah, chan, sc->tx_chan_width)) {
2373                         ath9k_hw_loadnf(ah, ah->curchan);
2374                         ath9k_hw_start_nfcal(ah);
2375                         return 0;
2376                 }
2377         }
2378
2379         saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
2380         if (saveDefAntenna == 0)
2381                 saveDefAntenna = 1;
2382
2383         macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
2384
2385         /* For chips on which RTC reset is done, save TSF before it gets cleared */
2386         if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
2387                 tsf = ath9k_hw_gettsf64(ah);
2388
2389         saveLedState = REG_READ(ah, AR_CFG_LED) &
2390                 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
2391                  AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
2392
2393         ath9k_hw_mark_phy_inactive(ah);
2394
2395         if (AR_SREV_9271(ah) && ah->htc_reset_init) {
2396                 REG_WRITE(ah,
2397                           AR9271_RESET_POWER_DOWN_CONTROL,
2398                           AR9271_RADIO_RF_RST);
2399                 udelay(50);
2400         }
2401
2402         if (!ath9k_hw_chip_reset(ah, chan)) {
2403                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL, "Chip reset failed\n");
2404                 return -EINVAL;
2405         }
2406
2407         if (AR_SREV_9271(ah) && ah->htc_reset_init) {
2408                 ah->htc_reset_init = false;
2409                 REG_WRITE(ah,
2410                           AR9271_RESET_POWER_DOWN_CONTROL,
2411                           AR9271_GATE_MAC_CTL);
2412                 udelay(50);
2413         }
2414
2415         /* Restore TSF */
2416         if (tsf && AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
2417                 ath9k_hw_settsf64(ah, tsf);
2418
2419         if (AR_SREV_9280_10_OR_LATER(ah))
2420                 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
2421
2422         if (AR_SREV_9287_12_OR_LATER(ah)) {
2423                 /* Enable ASYNC FIFO */
2424                 REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
2425                                 AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
2426                 REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
2427                 REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
2428                                 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
2429                 REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
2430                                 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
2431         }
2432         r = ath9k_hw_process_ini(ah, chan, sc->tx_chan_width);
2433         if (r)
2434                 return r;
2435
2436         /* Setup MFP options for CCMP */
2437         if (AR_SREV_9280_20_OR_LATER(ah)) {
2438                 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
2439                  * frames when constructing CCMP AAD. */
2440                 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
2441                               0xc7ff);
2442                 ah->sw_mgmt_crypto = false;
2443         } else if (AR_SREV_9160_10_OR_LATER(ah)) {
2444                 /* Disable hardware crypto for management frames */
2445                 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
2446                             AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
2447                 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
2448                             AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
2449                 ah->sw_mgmt_crypto = true;
2450         } else
2451                 ah->sw_mgmt_crypto = true;
2452
2453         if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
2454                 ath9k_hw_set_delta_slope(ah, chan);
2455
2456         if (AR_SREV_9280_10_OR_LATER(ah))
2457                 ath9k_hw_9280_spur_mitigate(ah, chan);
2458         else
2459                 ath9k_hw_spur_mitigate(ah, chan);
2460
2461         ah->eep_ops->set_board_values(ah, chan);
2462
2463         ath9k_hw_decrease_chain_power(ah, chan);
2464
2465         REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(ah->macaddr));
2466         REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(ah->macaddr + 4)
2467                   | macStaId1
2468                   | AR_STA_ID1_RTS_USE_DEF
2469                   | (ah->config.
2470                      ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
2471                   | ah->sta_id1_defaults);
2472         ath9k_hw_set_operating_mode(ah, ah->opmode);
2473
2474         REG_WRITE(ah, AR_BSSMSKL, get_unaligned_le32(sc->bssidmask));
2475         REG_WRITE(ah, AR_BSSMSKU, get_unaligned_le16(sc->bssidmask + 4));
2476
2477         REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
2478
2479         REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(sc->curbssid));
2480         REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(sc->curbssid + 4) |
2481                   ((sc->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2482
2483         REG_WRITE(ah, AR_ISR, ~0);
2484
2485         REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
2486
2487         if (AR_SREV_9280_10_OR_LATER(ah))
2488                 ath9k_hw_ar9280_set_channel(ah, chan);
2489         else
2490                 if (!(ath9k_hw_set_channel(ah, chan)))
2491                         return -EIO;
2492
2493         for (i = 0; i < AR_NUM_DCU; i++)
2494                 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
2495
2496         ah->intr_txqs = 0;
2497         for (i = 0; i < ah->caps.total_queues; i++)
2498                 ath9k_hw_resettxqueue(ah, i);
2499
2500         ath9k_hw_init_interrupt_masks(ah, ah->opmode);
2501         ath9k_hw_init_qos(ah);
2502
2503         if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
2504                 ath9k_enable_rfkill(ah);
2505
2506         ath9k_hw_init_user_settings(ah);
2507
2508         if (AR_SREV_9287_12_OR_LATER(ah)) {
2509                 REG_WRITE(ah, AR_D_GBL_IFS_SIFS,
2510                           AR_D_GBL_IFS_SIFS_ASYNC_FIFO_DUR);
2511                 REG_WRITE(ah, AR_D_GBL_IFS_SLOT,
2512                           AR_D_GBL_IFS_SLOT_ASYNC_FIFO_DUR);
2513                 REG_WRITE(ah, AR_D_GBL_IFS_EIFS,
2514                           AR_D_GBL_IFS_EIFS_ASYNC_FIFO_DUR);
2515
2516                 REG_WRITE(ah, AR_TIME_OUT, AR_TIME_OUT_ACK_CTS_ASYNC_FIFO_DUR);
2517                 REG_WRITE(ah, AR_USEC, AR_USEC_ASYNC_FIFO_DUR);
2518
2519                 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
2520                             AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
2521                 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
2522                               AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
2523         }
2524         if (AR_SREV_9287_12_OR_LATER(ah)) {
2525                 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
2526                                 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
2527         }
2528
2529         REG_WRITE(ah, AR_STA_ID1,
2530                   REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
2531
2532         ath9k_hw_set_dma(ah);
2533
2534         REG_WRITE(ah, AR_OBS, 8);
2535
2536         if (ah->config.intr_mitigation) {
2537                 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
2538                 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
2539         }
2540
2541         ath9k_hw_init_bb(ah, chan);
2542
2543         if (!ath9k_hw_init_cal(ah, chan))
2544                 return -EIO;
2545
2546         rx_chainmask = ah->rxchainmask;
2547         if ((rx_chainmask == 0x5) || (rx_chainmask == 0x3)) {
2548                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
2549                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
2550         }
2551
2552         REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
2553
2554         /*
2555          * For big endian systems turn on swapping for descriptors
2556          */
2557         if (AR_SREV_9100(ah)) {
2558                 u32 mask;
2559                 mask = REG_READ(ah, AR_CFG);
2560                 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
2561                         DPRINTF(ah->ah_sc, ATH_DBG_RESET,
2562                                 "CFG Byte Swap Set 0x%x\n", mask);
2563                 } else {
2564                         mask =
2565                                 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
2566                         REG_WRITE(ah, AR_CFG, mask);
2567                         DPRINTF(ah->ah_sc, ATH_DBG_RESET,
2568                                 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
2569                 }
2570         } else {
2571                 /* Configure AR9271 target WLAN */
2572                 if (AR_SREV_9271(ah))
2573                         REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
2574 #ifdef __BIG_ENDIAN
2575                 else
2576                         REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
2577 #endif
2578         }
2579
2580         if (ah->ah_sc->sc_flags & SC_OP_BTCOEX_ENABLED)
2581                 ath9k_hw_btcoex_enable(ah);
2582
2583         return 0;
2584 }
2585
2586 /************************/
2587 /* Key Cache Management */
2588 /************************/
2589
2590 bool ath9k_hw_keyreset(struct ath_hw *ah, u16 entry)
2591 {
2592         u32 keyType;
2593
2594         if (entry >= ah->caps.keycache_size) {
2595                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
2596                         "keychache entry %u out of range\n", entry);
2597                 return false;
2598         }
2599
2600         keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
2601
2602         REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
2603         REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
2604         REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
2605         REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
2606         REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
2607         REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
2608         REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
2609         REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
2610
2611         if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
2612                 u16 micentry = entry + 64;
2613
2614                 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
2615                 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
2616                 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
2617                 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
2618
2619         }
2620
2621         return true;
2622 }
2623
2624 bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
2625 {
2626         u32 macHi, macLo;
2627
2628         if (entry >= ah->caps.keycache_size) {
2629                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
2630                         "keychache entry %u out of range\n", entry);
2631                 return false;
2632         }
2633
2634         if (mac != NULL) {
2635                 macHi = (mac[5] << 8) | mac[4];
2636                 macLo = (mac[3] << 24) |
2637                         (mac[2] << 16) |
2638                         (mac[1] << 8) |
2639                         mac[0];
2640                 macLo >>= 1;
2641                 macLo |= (macHi & 1) << 31;
2642                 macHi >>= 1;
2643         } else {
2644                 macLo = macHi = 0;
2645         }
2646         REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
2647         REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | AR_KEYTABLE_VALID);
2648
2649         return true;
2650 }
2651
2652 bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
2653                                  const struct ath9k_keyval *k,
2654                                  const u8 *mac)
2655 {
2656         const struct ath9k_hw_capabilities *pCap = &ah->caps;
2657         u32 key0, key1, key2, key3, key4;
2658         u32 keyType;
2659
2660         if (entry >= pCap->keycache_size) {
2661                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
2662                         "keycache entry %u out of range\n", entry);
2663                 return false;
2664         }
2665
2666         switch (k->kv_type) {
2667         case ATH9K_CIPHER_AES_OCB:
2668                 keyType = AR_KEYTABLE_TYPE_AES;
2669                 break;
2670         case ATH9K_CIPHER_AES_CCM:
2671                 if (!(pCap->hw_caps & ATH9K_HW_CAP_CIPHER_AESCCM)) {
2672                         DPRINTF(ah->ah_sc, ATH_DBG_ANY,
2673                                 "AES-CCM not supported by mac rev 0x%x\n",
2674                                 ah->hw_version.macRev);
2675                         return false;
2676                 }
2677                 keyType = AR_KEYTABLE_TYPE_CCM;
2678                 break;
2679         case ATH9K_CIPHER_TKIP:
2680                 keyType = AR_KEYTABLE_TYPE_TKIP;
2681                 if (ATH9K_IS_MIC_ENABLED(ah)
2682                     && entry + 64 >= pCap->keycache_size) {
2683                         DPRINTF(ah->ah_sc, ATH_DBG_ANY,
2684                                 "entry %u inappropriate for TKIP\n", entry);
2685                         return false;
2686                 }
2687                 break;
2688         case ATH9K_CIPHER_WEP:
2689                 if (k->kv_len < WLAN_KEY_LEN_WEP40) {
2690                         DPRINTF(ah->ah_sc, ATH_DBG_ANY,
2691                                 "WEP key length %u too small\n", k->kv_len);
2692                         return false;
2693                 }
2694                 if (k->kv_len <= WLAN_KEY_LEN_WEP40)
2695                         keyType = AR_KEYTABLE_TYPE_40;
2696                 else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
2697                         keyType = AR_KEYTABLE_TYPE_104;
2698                 else
2699                         keyType = AR_KEYTABLE_TYPE_128;
2700                 break;
2701         case ATH9K_CIPHER_CLR:
2702                 keyType = AR_KEYTABLE_TYPE_CLR;
2703                 break;
2704         default:
2705                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
2706                         "cipher %u not supported\n", k->kv_type);
2707                 return false;
2708         }
2709
2710         key0 = get_unaligned_le32(k->kv_val + 0);
2711         key1 = get_unaligned_le16(k->kv_val + 4);
2712         key2 = get_unaligned_le32(k->kv_val + 6);
2713         key3 = get_unaligned_le16(k->kv_val + 10);
2714         key4 = get_unaligned_le32(k->kv_val + 12);
2715         if (k->kv_len <= WLAN_KEY_LEN_WEP104)
2716                 key4 &= 0xff;
2717
2718         /*
2719          * Note: Key cache registers access special memory area that requires
2720          * two 32-bit writes to actually update the values in the internal
2721          * memory. Consequently, the exact order and pairs used here must be
2722          * maintained.
2723          */
2724
2725         if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
2726                 u16 micentry = entry + 64;
2727
2728                 /*
2729                  * Write inverted key[47:0] first to avoid Michael MIC errors
2730                  * on frames that could be sent or received at the same time.
2731                  * The correct key will be written in the end once everything
2732                  * else is ready.
2733                  */
2734                 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), ~key0);
2735                 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), ~key1);
2736
2737                 /* Write key[95:48] */
2738                 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
2739                 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
2740
2741                 /* Write key[127:96] and key type */
2742                 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
2743                 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
2744
2745                 /* Write MAC address for the entry */
2746                 (void) ath9k_hw_keysetmac(ah, entry, mac);
2747
2748                 if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) {
2749                         /*
2750                          * TKIP uses two key cache entries:
2751                          * Michael MIC TX/RX keys in the same key cache entry
2752                          * (idx = main index + 64):
2753                          * key0 [31:0] = RX key [31:0]
2754                          * key1 [15:0] = TX key [31:16]
2755                          * key1 [31:16] = reserved
2756                          * key2 [31:0] = RX key [63:32]
2757                          * key3 [15:0] = TX key [15:0]
2758                          * key3 [31:16] = reserved
2759                          * key4 [31:0] = TX key [63:32]
2760                          */
2761                         u32 mic0, mic1, mic2, mic3, mic4;
2762
2763                         mic0 = get_unaligned_le32(k->kv_mic + 0);
2764                         mic2 = get_unaligned_le32(k->kv_mic + 4);
2765                         mic1 = get_unaligned_le16(k->kv_txmic + 2) & 0xffff;
2766                         mic3 = get_unaligned_le16(k->kv_txmic + 0) & 0xffff;
2767                         mic4 = get_unaligned_le32(k->kv_txmic + 4);
2768
2769                         /* Write RX[31:0] and TX[31:16] */
2770                         REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
2771                         REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), mic1);
2772
2773                         /* Write RX[63:32] and TX[15:0] */
2774                         REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
2775                         REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), mic3);
2776
2777                         /* Write TX[63:32] and keyType(reserved) */
2778                         REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), mic4);
2779                         REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
2780                                   AR_KEYTABLE_TYPE_CLR);
2781
2782                 } else {
2783                         /*
2784                          * TKIP uses four key cache entries (two for group
2785                          * keys):
2786                          * Michael MIC TX/RX keys are in different key cache
2787                          * entries (idx = main index + 64 for TX and
2788                          * main index + 32 + 96 for RX):
2789                          * key0 [31:0] = TX/RX MIC key [31:0]
2790                          * key1 [31:0] = reserved
2791                          * key2 [31:0] = TX/RX MIC key [63:32]
2792                          * key3 [31:0] = reserved
2793                          * key4 [31:0] = reserved
2794                          *
2795                          * Upper layer code will call this function separately
2796                          * for TX and RX keys when these registers offsets are
2797                          * used.
2798                          */
2799                         u32 mic0, mic2;
2800
2801                         mic0 = get_unaligned_le32(k->kv_mic + 0);
2802                         mic2 = get_unaligned_le32(k->kv_mic + 4);
2803
2804                         /* Write MIC key[31:0] */
2805                         REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
2806                         REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
2807
2808                         /* Write MIC key[63:32] */
2809                         REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
2810                         REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
2811
2812                         /* Write TX[63:32] and keyType(reserved) */
2813                         REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
2814                         REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
2815                                   AR_KEYTABLE_TYPE_CLR);
2816                 }
2817
2818                 /* MAC address registers are reserved for the MIC entry */
2819                 REG_WRITE(ah, AR_KEYTABLE_MAC0(micentry), 0);
2820                 REG_WRITE(ah, AR_KEYTABLE_MAC1(micentry), 0);
2821
2822                 /*
2823                  * Write the correct (un-inverted) key[47:0] last to enable
2824                  * TKIP now that all other registers are set with correct
2825                  * values.
2826                  */
2827                 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
2828                 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
2829         } else {
2830                 /* Write key[47:0] */
2831                 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
2832                 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
2833
2834                 /* Write key[95:48] */
2835                 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
2836                 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
2837
2838                 /* Write key[127:96] and key type */
2839                 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
2840                 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
2841
2842                 /* Write MAC address for the entry */
2843                 (void) ath9k_hw_keysetmac(ah, entry, mac);
2844         }
2845
2846         return true;
2847 }
2848
2849 bool ath9k_hw_keyisvalid(struct ath_hw *ah, u16 entry)
2850 {
2851         if (entry < ah->caps.keycache_size) {
2852                 u32 val = REG_READ(ah, AR_KEYTABLE_MAC1(entry));
2853                 if (val & AR_KEYTABLE_VALID)
2854                         return true;
2855         }
2856         return false;
2857 }
2858
2859 /******************************/
2860 /* Power Management (Chipset) */
2861 /******************************/
2862
2863 static void ath9k_set_power_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                 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
2868                             AR_RTC_FORCE_WAKE_EN);
2869                 if (!AR_SREV_9100(ah))
2870                         REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
2871
2872                 REG_CLR_BIT(ah, (AR_RTC_RESET),
2873                             AR_RTC_RESET_EN);
2874         }
2875 }
2876
2877 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
2878 {
2879         REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2880         if (setChip) {
2881                 struct ath9k_hw_capabilities *pCap = &ah->caps;
2882
2883                 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
2884                         REG_WRITE(ah, AR_RTC_FORCE_WAKE,
2885                                   AR_RTC_FORCE_WAKE_ON_INT);
2886                 } else {
2887                         REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
2888                                     AR_RTC_FORCE_WAKE_EN);
2889                 }
2890         }
2891 }
2892
2893 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
2894 {
2895         u32 val;
2896         int i;
2897
2898         if (setChip) {
2899                 if ((REG_READ(ah, AR_RTC_STATUS) &
2900                      AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
2901                         if (ath9k_hw_set_reset_reg(ah,
2902                                            ATH9K_RESET_POWER_ON) != true) {
2903                                 return false;
2904                         }
2905                 }
2906                 if (AR_SREV_9100(ah))
2907                         REG_SET_BIT(ah, AR_RTC_RESET,
2908                                     AR_RTC_RESET_EN);
2909
2910                 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2911                             AR_RTC_FORCE_WAKE_EN);
2912                 udelay(50);
2913
2914                 for (i = POWER_UP_TIME / 50; i > 0; i--) {
2915                         val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
2916                         if (val == AR_RTC_STATUS_ON)
2917                                 break;
2918                         udelay(50);
2919                         REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2920                                     AR_RTC_FORCE_WAKE_EN);
2921                 }
2922                 if (i == 0) {
2923                         DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
2924                                 "Failed to wakeup in %uus\n", POWER_UP_TIME / 20);
2925                         return false;
2926                 }
2927         }
2928
2929         REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2930
2931         return true;
2932 }
2933
2934 static bool ath9k_hw_setpower_nolock(struct ath_hw *ah,
2935                                      enum ath9k_power_mode mode)
2936 {
2937         int status = true, setChip = true;
2938         static const char *modes[] = {
2939                 "AWAKE",
2940                 "FULL-SLEEP",
2941                 "NETWORK SLEEP",
2942                 "UNDEFINED"
2943         };
2944
2945         if (ah->power_mode == mode)
2946                 return status;
2947
2948         DPRINTF(ah->ah_sc, ATH_DBG_RESET, "%s -> %s\n",
2949                 modes[ah->power_mode], modes[mode]);
2950
2951         switch (mode) {
2952         case ATH9K_PM_AWAKE:
2953                 status = ath9k_hw_set_power_awake(ah, setChip);
2954                 break;
2955         case ATH9K_PM_FULL_SLEEP:
2956                 ath9k_set_power_sleep(ah, setChip);
2957                 ah->chip_fullsleep = true;
2958                 break;
2959         case ATH9K_PM_NETWORK_SLEEP:
2960                 ath9k_set_power_network_sleep(ah, setChip);
2961                 break;
2962         default:
2963                 DPRINTF(ah->ah_sc, ATH_DBG_FATAL,
2964                         "Unknown power mode %u\n", mode);
2965                 return false;
2966         }
2967         ah->power_mode = mode;
2968
2969         return status;
2970 }
2971
2972 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
2973 {
2974         unsigned long flags;
2975         bool ret;
2976
2977         spin_lock_irqsave(&ah->ah_sc->sc_pm_lock, flags);
2978         ret = ath9k_hw_setpower_nolock(ah, mode);
2979         spin_unlock_irqrestore(&ah->ah_sc->sc_pm_lock, flags);
2980
2981         return ret;
2982 }
2983
2984 void ath9k_ps_wakeup(struct ath_softc *sc)
2985 {
2986         unsigned long flags;
2987
2988         spin_lock_irqsave(&sc->sc_pm_lock, flags);
2989         if (++sc->ps_usecount != 1)
2990                 goto unlock;
2991
2992         ath9k_hw_setpower_nolock(sc->sc_ah, ATH9K_PM_AWAKE);
2993
2994  unlock:
2995         spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
2996 }
2997
2998 void ath9k_ps_restore(struct ath_softc *sc)
2999 {
3000         unsigned long flags;
3001
3002         spin_lock_irqsave(&sc->sc_pm_lock, flags);
3003         if (--sc->ps_usecount != 0)
3004                 goto unlock;
3005
3006         if (sc->ps_enabled &&
3007             !(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON |
3008                               SC_OP_WAIT_FOR_CAB |
3009                               SC_OP_WAIT_FOR_PSPOLL_DATA |
3010                               SC_OP_WAIT_FOR_TX_ACK)))
3011                 ath9k_hw_setpower_nolock(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP);
3012
3013  unlock:
3014         spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
3015 }
3016
3017 /*
3018  * Helper for ASPM support.
3019  *
3020  * Disable PLL when in L0s as well as receiver clock when in L1.
3021  * This power saving option must be enabled through the SerDes.
3022  *
3023  * Programming the SerDes must go through the same 288 bit serial shift
3024  * register as the other analog registers.  Hence the 9 writes.
3025  */
3026 void ath9k_hw_configpcipowersave(struct ath_hw *ah, int restore, int power_off)
3027 {
3028         u8 i;
3029         u32 val;
3030
3031         if (ah->is_pciexpress != true)
3032                 return;
3033
3034         /* Do not touch SerDes registers */
3035         if (ah->config.pcie_powersave_enable == 2)
3036                 return;
3037
3038         /* Nothing to do on restore for 11N */
3039         if (!restore) {
3040                 if (AR_SREV_9280_20_OR_LATER(ah)) {
3041                         /*
3042                          * AR9280 2.0 or later chips use SerDes values from the
3043                          * initvals.h initialized depending on chipset during
3044                          * ath9k_hw_init()
3045                          */
3046                         for (i = 0; i < ah->iniPcieSerdes.ia_rows; i++) {
3047                                 REG_WRITE(ah, INI_RA(&ah->iniPcieSerdes, i, 0),
3048                                           INI_RA(&ah->iniPcieSerdes, i, 1));
3049                         }
3050                 } else if (AR_SREV_9280(ah) &&
3051                            (ah->hw_version.macRev == AR_SREV_REVISION_9280_10)) {
3052                         REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fd00);
3053                         REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
3054
3055                         /* RX shut off when elecidle is asserted */
3056                         REG_WRITE(ah, AR_PCIE_SERDES, 0xa8000019);
3057                         REG_WRITE(ah, AR_PCIE_SERDES, 0x13160820);
3058                         REG_WRITE(ah, AR_PCIE_SERDES, 0xe5980560);
3059
3060                         /* Shut off CLKREQ active in L1 */
3061                         if (ah->config.pcie_clock_req)
3062                                 REG_WRITE(ah, AR_PCIE_SERDES, 0x401deffc);
3063                         else
3064                                 REG_WRITE(ah, AR_PCIE_SERDES, 0x401deffd);
3065
3066                         REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
3067                         REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
3068                         REG_WRITE(ah, AR_PCIE_SERDES, 0x00043007);
3069
3070                         /* Load the new settings */