drivers/net/wireless/ath/ath9k/ar5008_phy.c

   1 /*
   2  * Copyright (c) 2008-2010 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 "hw.h"
  18 #include "hw-ops.h"
  19 #include "../regd.h"
  20 #include "ar9002_phy.h"
  21
  22 /* All code below is for non single-chip solutions */
  23
  24 /**
  25  * ar5008_hw_phy_modify_rx_buffer() - perform analog swizzling of parameters
  26  * @rfbuf:
  27  * @reg32:
  28  * @numBits:
  29  * @firstBit:
  30  * @column:
  31  *
  32  * Performs analog "swizzling" of parameters into their location.
  33  * Used on external AR2133/AR5133 radios.
  34  */
  35 static void ar5008_hw_phy_modify_rx_buffer(u32 *rfBuf, u32 reg32,
  36                                            u32 numBits, u32 firstBit,
  37                                            u32 column)
  38 {
  39         u32 tmp32, mask, arrayEntry, lastBit;
  40         int32_t bitPosition, bitsLeft;
  41
  42         tmp32 = ath9k_hw_reverse_bits(reg32, numBits);
  43         arrayEntry = (firstBit - 1) / 8;
  44         bitPosition = (firstBit - 1) % 8;
  45         bitsLeft = numBits;
  46         while (bitsLeft > 0) {
  47                 lastBit = (bitPosition + bitsLeft > 8) ?
  48                     8 : bitPosition + bitsLeft;
  49                 mask = (((1 << lastBit) - 1) ^ ((1 << bitPosition) - 1)) <<
  50                     (column * 8);
  51                 rfBuf[arrayEntry] &= ~mask;
  52                 rfBuf[arrayEntry] |= ((tmp32 << bitPosition) <<
  53                                       (column * 8)) & mask;
  54                 bitsLeft -= 8 - bitPosition;
  55                 tmp32 = tmp32 >> (8 - bitPosition);
  56                 bitPosition = 0;
  57                 arrayEntry++;
  58         }
  59 }
  60
  61 /*
  62  * Fix on 2.4 GHz band for orientation sensitivity issue by increasing
  63  * rf_pwd_icsyndiv.
  64  *
  65  * Theoretical Rules:
  66  *   if 2 GHz band
  67  *      if forceBiasAuto
  68  *         if synth_freq < 2412
  69  *            bias = 0
  70  *         else if 2412 <= synth_freq <= 2422
  71  *            bias = 1
  72  *         else // synth_freq > 2422
  73  *            bias = 2
  74  *      else if forceBias > 0
  75  *         bias = forceBias & 7
  76  *      else
  77  *         no change, use value from ini file
  78  *   else
  79  *      no change, invalid band
  80  *
  81  *  1st Mod:
  82  *    2422 also uses value of 2
  83  *    <approved>
  84  *
  85  *  2nd Mod:
  86  *    Less than 2412 uses value of 0, 2412 and above uses value of 2
  87  */
  88 static void ar5008_hw_force_bias(struct ath_hw *ah, u16 synth_freq)
  89 {
  90         struct ath_common *common = ath9k_hw_common(ah);
  91         u32 tmp_reg;
  92         int reg_writes = 0;
  93         u32 new_bias = 0;
  94
  95         if (!AR_SREV_5416(ah) || synth_freq >= 3000)
  96                 return;
  97
  98         BUG_ON(AR_SREV_9280_10_OR_LATER(ah));
  99
 100         if (synth_freq < 2412)
 101                 new_bias = 0;
 102         else if (synth_freq < 2422)
 103                 new_bias = 1;
 104         else
 105                 new_bias = 2;
 106
 107         /* pre-reverse this field */
 108         tmp_reg = ath9k_hw_reverse_bits(new_bias, 3);
 109
 110         ath_print(common, ATH_DBG_CONFIG,
 111                   "Force rf_pwd_icsyndiv to %1d on %4d\n",
 112                   new_bias, synth_freq);
 113
 114         /* swizzle rf_pwd_icsyndiv */
 115         ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data, tmp_reg, 3, 181, 3);
 116
 117         /* write Bank 6 with new params */
 118         REG_WRITE_RF_ARRAY(&ah->iniBank6, ah->analogBank6Data, reg_writes);
 119 }
 120
 121 /**
 122  * ar5008_hw_set_channel - tune to a channel on the external AR2133/AR5133 radios
 123  * @ah: atheros hardware stucture
 124  * @chan:
 125  *
 126  * For the external AR2133/AR5133 radios, takes the MHz channel value and set
 127  * the channel value. Assumes writes enabled to analog bus and bank6 register
 128  * cache in ah->analogBank6Data.
 129  */
 130 static int ar5008_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
 131 {
 132         struct ath_common *common = ath9k_hw_common(ah);
 133         u32 channelSel = 0;
 134         u32 bModeSynth = 0;
 135         u32 aModeRefSel = 0;
 136         u32 reg32 = 0;
 137         u16 freq;
 138         struct chan_centers centers;
 139
 140         ath9k_hw_get_channel_centers(ah, chan, &centers);
 141         freq = centers.synth_center;
 142
 143         if (freq < 4800) {
 144                 u32 txctl;
 145
 146                 if (((freq - 2192) % 5) == 0) {
 147                         channelSel = ((freq - 672) * 2 - 3040) / 10;
 148                         bModeSynth = 0;
 149                 } else if (((freq - 2224) % 5) == 0) {
 150                         channelSel = ((freq - 704) * 2 - 3040) / 10;
 151                         bModeSynth = 1;
 152                 } else {
 153                         ath_print(common, ATH_DBG_FATAL,
 154                                   "Invalid channel %u MHz\n", freq);
 155                         return -EINVAL;
 156                 }
 157
 158                 channelSel = (channelSel << 2) & 0xff;
 159                 channelSel = ath9k_hw_reverse_bits(channelSel, 8);
 160
 161                 txctl = REG_READ(ah, AR_PHY_CCK_TX_CTRL);
 162                 if (freq == 2484) {
 163
 164                         REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 165                                   txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
 166                 } else {
 167                         REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
 168                                   txctl & ~AR_PHY_CCK_TX_CTRL_JAPAN);
 169                 }
 170
 171         } else if ((freq % 20) == 0 && freq >= 5120) {
 172                 channelSel =
 173                     ath9k_hw_reverse_bits(((freq - 4800) / 20 << 2), 8);
 174                 aModeRefSel = ath9k_hw_reverse_bits(1, 2);
 175         } else if ((freq % 10) == 0) {
 176                 channelSel =
 177                     ath9k_hw_reverse_bits(((freq - 4800) / 10 << 1), 8);
 178                 if (AR_SREV_9100(ah) || AR_SREV_9160_10_OR_LATER(ah))
 179                         aModeRefSel = ath9k_hw_reverse_bits(2, 2);
 180                 else
 181                         aModeRefSel = ath9k_hw_reverse_bits(1, 2);
 182         } else if ((freq % 5) == 0) {
 183                 channelSel = ath9k_hw_reverse_bits((freq - 4800) / 5, 8);
 184                 aModeRefSel = ath9k_hw_reverse_bits(1, 2);
 185         } else {
 186                 ath_print(common, ATH_DBG_FATAL,
 187                           "Invalid channel %u MHz\n", freq);
 188                 return -EINVAL;
 189         }
 190
 191         ar5008_hw_force_bias(ah, freq);
 192
 193         reg32 =
 194             (channelSel << 8) | (aModeRefSel << 2) | (bModeSynth << 1) |
 195             (1 << 5) | 0x1;
 196
 197         REG_WRITE(ah, AR_PHY(0x37), reg32);
 198
 199         ah->curchan = chan;
 200         ah->curchan_rad_index = -1;
 201
 202         return 0;
 203 }
 204
 205 /**
 206  * ar5008_hw_spur_mitigate - convert baseband spur frequency for external radios
 207  * @ah: atheros hardware structure
 208  * @chan:
 209  *
 210  * For non single-chip solutions. Converts to baseband spur frequency given the
 211  * input channel frequency and compute register settings below.
 212  */
 213 static void ar5008_hw_spur_mitigate(struct ath_hw *ah,
 214                                     struct ath9k_channel *chan)
 215 {
 216         int bb_spur = AR_NO_SPUR;
 217         int bin, cur_bin;
 218         int spur_freq_sd;
 219         int spur_delta_phase;
 220         int denominator;
 221         int upper, lower, cur_vit_mask;
 222         int tmp, new;
 223         int i;
 224         int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
 225                           AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
 226         };
 227         int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
 228                          AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
 229         };
 230         int inc[4] = { 0, 100, 0, 0 };
 231
 232         int8_t mask_m[123];
 233         int8_t mask_p[123];
 234         int8_t mask_amt;
 235         int tmp_mask;
 236         int cur_bb_spur;
 237         bool is2GHz = IS_CHAN_2GHZ(chan);
 238
 239         memset(&mask_m, 0, sizeof(int8_t) * 123);
 240         memset(&mask_p, 0, sizeof(int8_t) * 123);
 241
 242         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
 243                 cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
 244                 if (AR_NO_SPUR == cur_bb_spur)
 245                         break;
 246                 cur_bb_spur = cur_bb_spur - (chan->channel * 10);
 247                 if ((cur_bb_spur > -95) && (cur_bb_spur < 95)) {
 248                         bb_spur = cur_bb_spur;
 249                         break;
 250                 }
 251         }
 252
 253         if (AR_NO_SPUR == bb_spur)
 254                 return;
 255
 256         bin = bb_spur * 32;
 257
 258         tmp = REG_READ(ah, AR_PHY_TIMING_CTRL4(0));
 259         new = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
 260                      AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
 261                      AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
 262                      AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
 263
 264         REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), new);
 265
 266         new = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
 267                AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
 268                AR_PHY_SPUR_REG_MASK_RATE_SELECT |
 269                AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
 270                SM(SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
 271         REG_WRITE(ah, AR_PHY_SPUR_REG, new);
 272
 273         spur_delta_phase = ((bb_spur * 524288) / 100) &
 274                 AR_PHY_TIMING11_SPUR_DELTA_PHASE;
 275
 276         denominator = IS_CHAN_2GHZ(chan) ? 440 : 400;
 277         spur_freq_sd = ((bb_spur * 2048) / denominator) & 0x3ff;
 278
 279         new = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
 280                SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
 281                SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
 282         REG_WRITE(ah, AR_PHY_TIMING11, new);
 283
 284         cur_bin = -6000;
 285         upper = bin + 100;
 286         lower = bin - 100;
 287
 288         for (i = 0; i < 4; i++) {
 289                 int pilot_mask = 0;
 290                 int chan_mask = 0;
 291                 int bp = 0;
 292                 for (bp = 0; bp < 30; bp++) {
 293                         if ((cur_bin > lower) && (cur_bin < upper)) {
 294                                 pilot_mask = pilot_mask | 0x1 << bp;
 295                                 chan_mask = chan_mask | 0x1 << bp;
 296                         }
 297                         cur_bin += 100;
 298                 }
 299                 cur_bin += inc[i];
 300                 REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
 301                 REG_WRITE(ah, chan_mask_reg[i], chan_mask);
 302         }
 303
 304         cur_vit_mask = 6100;
 305         upper = bin + 120;
 306         lower = bin - 120;
 307
 308         for (i = 0; i < 123; i++) {
 309                 if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
 310
 311                         /* workaround for gcc bug #37014 */
 312                         volatile int tmp_v = abs(cur_vit_mask - bin);
 313
 314                         if (tmp_v < 75)
 315                                 mask_amt = 1;
 316                         else
 317                                 mask_amt = 0;
 318                         if (cur_vit_mask < 0)
 319                                 mask_m[abs(cur_vit_mask / 100)] = mask_amt;
 320                         else
 321                                 mask_p[cur_vit_mask / 100] = mask_amt;
 322                 }
 323                 cur_vit_mask -= 100;
 324         }
 325
 326         tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
 327                 | (mask_m[48] << 26) | (mask_m[49] << 24)
 328                 | (mask_m[50] << 22) | (mask_m[51] << 20)
 329                 | (mask_m[52] << 18) | (mask_m[53] << 16)
 330                 | (mask_m[54] << 14) | (mask_m[55] << 12)
 331                 | (mask_m[56] << 10) | (mask_m[57] << 8)
 332                 | (mask_m[58] << 6) | (mask_m[59] << 4)
 333                 | (mask_m[60] << 2) | (mask_m[61] << 0);
 334         REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
 335         REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
 336
 337         tmp_mask = (mask_m[31] << 28)
 338                 | (mask_m[32] << 26) | (mask_m[33] << 24)
 339                 | (mask_m[34] << 22) | (mask_m[35] << 20)
 340                 | (mask_m[36] << 18) | (mask_m[37] << 16)
 341                 | (mask_m[48] << 14) | (mask_m[39] << 12)
 342                 | (mask_m[40] << 10) | (mask_m[41] << 8)
 343                 | (mask_m[42] << 6) | (mask_m[43] << 4)
 344                 | (mask_m[44] << 2) | (mask_m[45] << 0);
 345         REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
 346         REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
 347
 348         tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
 349                 | (mask_m[18] << 26) | (mask_m[18] << 24)
 350                 | (mask_m[20] << 22) | (mask_m[20] << 20)
 351                 | (mask_m[22] << 18) | (mask_m[22] << 16)
 352                 | (mask_m[24] << 14) | (mask_m[24] << 12)
 353                 | (mask_m[25] << 10) | (mask_m[26] << 8)
 354                 | (mask_m[27] << 6) | (mask_m[28] << 4)
 355                 | (mask_m[29] << 2) | (mask_m[30] << 0);
 356         REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
 357         REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
 358
 359         tmp_mask = (mask_m[0] << 30) | (mask_m[1] << 28)
 360                 | (mask_m[2] << 26) | (mask_m[3] << 24)
 361                 | (mask_m[4] << 22) | (mask_m[5] << 20)
 362                 | (mask_m[6] << 18) | (mask_m[7] << 16)
 363                 | (mask_m[8] << 14) | (mask_m[9] << 12)
 364                 | (mask_m[10] << 10) | (mask_m[11] << 8)
 365                 | (mask_m[12] << 6) | (mask_m[13] << 4)
 366                 | (mask_m[14] << 2) | (mask_m[15] << 0);
 367         REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
 368         REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
 369
 370         tmp_mask = (mask_p[15] << 28)
 371                 | (mask_p[14] << 26) | (mask_p[13] << 24)
 372                 | (mask_p[12] << 22) | (mask_p[11] << 20)
 373                 | (mask_p[10] << 18) | (mask_p[9] << 16)
 374                 | (mask_p[8] << 14) | (mask_p[7] << 12)
 375                 | (mask_p[6] << 10) | (mask_p[5] << 8)
 376                 | (mask_p[4] << 6) | (mask_p[3] << 4)
 377                 | (mask_p[2] << 2) | (mask_p[1] << 0);
 378         REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
 379         REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
 380
 381         tmp_mask = (mask_p[30] << 28)
 382                 | (mask_p[29] << 26) | (mask_p[28] << 24)
 383                 | (mask_p[27] << 22) | (mask_p[26] << 20)
 384                 | (mask_p[25] << 18) | (mask_p[24] << 16)
 385                 | (mask_p[23] << 14) | (mask_p[22] << 12)
 386                 | (mask_p[21] << 10) | (mask_p[20] << 8)
 387                 | (mask_p[19] << 6) | (mask_p[18] << 4)
 388                 | (mask_p[17] << 2) | (mask_p[16] << 0);
 389         REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
 390         REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
 391
 392         tmp_mask = (mask_p[45] << 28)
 393                 | (mask_p[44] << 26) | (mask_p[43] << 24)
 394                 | (mask_p[42] << 22) | (mask_p[41] << 20)
 395                 | (mask_p[40] << 18) | (mask_p[39] << 16)
 396                 | (mask_p[38] << 14) | (mask_p[37] << 12)
 397                 | (mask_p[36] << 10) | (mask_p[35] << 8)
 398                 | (mask_p[34] << 6) | (mask_p[33] << 4)
 399                 | (mask_p[32] << 2) | (mask_p[31] << 0);
 400         REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
 401         REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
 402
 403         tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
 404                 | (mask_p[59] << 26) | (mask_p[58] << 24)
 405                 | (mask_p[57] << 22) | (mask_p[56] << 20)
 406                 | (mask_p[55] << 18) | (mask_p[54] << 16)
 407                 | (mask_p[53] << 14) | (mask_p[52] << 12)
 408                 | (mask_p[51] << 10) | (mask_p[50] << 8)
 409                 | (mask_p[49] << 6) | (mask_p[48] << 4)
 410                 | (mask_p[47] << 2) | (mask_p[46] << 0);
 411         REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
 412         REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
 413 }
 414
 415 /**
 416  * ar5008_hw_rf_alloc_ext_banks - allocates banks for external radio programming
 417  * @ah: atheros hardware structure
 418  *
 419  * Only required for older devices with external AR2133/AR5133 radios.
 420  */
 421 static int ar5008_hw_rf_alloc_ext_banks(struct ath_hw *ah)
 422 {
 423 #define ATH_ALLOC_BANK(bank, size) do { \
 424                 bank = kzalloc((sizeof(u32) * size), GFP_KERNEL); \
 425                 if (!bank) { \
 426                         ath_print(common, ATH_DBG_FATAL, \
 427                                   "Cannot allocate RF banks\n"); \
 428                         return -ENOMEM; \
 429                 } \
 430         } while (0);
 431
 432         struct ath_common *common = ath9k_hw_common(ah);
 433
 434         BUG_ON(AR_SREV_9280_10_OR_LATER(ah));
 435
 436         ATH_ALLOC_BANK(ah->analogBank0Data, ah->iniBank0.ia_rows);
 437         ATH_ALLOC_BANK(ah->analogBank1Data, ah->iniBank1.ia_rows);
 438         ATH_ALLOC_BANK(ah->analogBank2Data, ah->iniBank2.ia_rows);
 439         ATH_ALLOC_BANK(ah->analogBank3Data, ah->iniBank3.ia_rows);
 440         ATH_ALLOC_BANK(ah->analogBank6Data, ah->iniBank6.ia_rows);
 441         ATH_ALLOC_BANK(ah->analogBank6TPCData, ah->iniBank6TPC.ia_rows);
 442         ATH_ALLOC_BANK(ah->analogBank7Data, ah->iniBank7.ia_rows);
 443         ATH_ALLOC_BANK(ah->addac5416_21,
 444                        ah->iniAddac.ia_rows * ah->iniAddac.ia_columns);
 445         ATH_ALLOC_BANK(ah->bank6Temp, ah->iniBank6.ia_rows);
 446
 447         return 0;
 448 #undef ATH_ALLOC_BANK
 449 }
 450
 451
 452 /**
 453  * ar5008_hw_rf_free_ext_banks - Free memory for analog bank scratch buffers
 454  * @ah: atheros hardware struture
 455  * For the external AR2133/AR5133 radios banks.
 456  */
 457 static void ar5008_hw_rf_free_ext_banks(struct ath_hw *ah)
 458 {
 459 #define ATH_FREE_BANK(bank) do { \
 460                 kfree(bank); \
 461                 bank = NULL; \
 462         } while (0);
 463
 464         BUG_ON(AR_SREV_9280_10_OR_LATER(ah));
 465
 466         ATH_FREE_BANK(ah->analogBank0Data);
 467         ATH_FREE_BANK(ah->analogBank1Data);
 468         ATH_FREE_BANK(ah->analogBank2Data);
 469         ATH_FREE_BANK(ah->analogBank3Data);
 470         ATH_FREE_BANK(ah->analogBank6Data);
 471         ATH_FREE_BANK(ah->analogBank6TPCData);
 472         ATH_FREE_BANK(ah->analogBank7Data);
 473         ATH_FREE_BANK(ah->addac5416_21);
 474         ATH_FREE_BANK(ah->bank6Temp);
 475
 476 #undef ATH_FREE_BANK
 477 }
 478
 479 /* *
 480  * ar5008_hw_set_rf_regs - programs rf registers based on EEPROM
 481  * @ah: atheros hardware structure
 482  * @chan:
 483  * @modesIndex:
 484  *
 485  * Used for the external AR2133/AR5133 radios.
 486  *
 487  * Reads the EEPROM header info from the device structure and programs
 488  * all rf registers. This routine requires access to the analog
 489  * rf device. This is not required for single-chip devices.
 490  */
 491 static bool ar5008_hw_set_rf_regs(struct ath_hw *ah,
 492                                   struct ath9k_channel *chan,
 493                                   u16 modesIndex)
 494 {
 495         u32 eepMinorRev;
 496         u32 ob5GHz = 0, db5GHz = 0;
 497         u32 ob2GHz = 0, db2GHz = 0;
 498         int regWrites = 0;
 499
 500         /*
 501          * Software does not need to program bank data
 502          * for single chip devices, that is AR9280 or anything
 503          * after that.
 504          */
 505         if (AR_SREV_9280_10_OR_LATER(ah))
 506                 return true;
 507
 508         /* Setup rf parameters */
 509         eepMinorRev = ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV);
 510
 511         /* Setup Bank 0 Write */
 512         RF_BANK_SETUP(ah->analogBank0Data, &ah->iniBank0, 1);
 513
 514         /* Setup Bank 1 Write */
 515         RF_BANK_SETUP(ah->analogBank1Data, &ah->iniBank1, 1);
 516
 517         /* Setup Bank 2 Write */
 518         RF_BANK_SETUP(ah->analogBank2Data, &ah->iniBank2, 1);
 519
 520         /* Setup Bank 6 Write */
 521         RF_BANK_SETUP(ah->analogBank3Data, &ah->iniBank3,
 522                       modesIndex);
 523         {
 524                 int i;
 525                 for (i = 0; i < ah->iniBank6TPC.ia_rows; i++) {
 526                         ah->analogBank6Data[i] =
 527                             INI_RA(&ah->iniBank6TPC, i, modesIndex);
 528                 }
 529         }
 530
 531         /* Only the 5 or 2 GHz OB/DB need to be set for a mode */
 532         if (eepMinorRev >= 2) {
 533                 if (IS_CHAN_2GHZ(chan)) {
 534                         ob2GHz = ah->eep_ops->get_eeprom(ah, EEP_OB_2);
 535                         db2GHz = ah->eep_ops->get_eeprom(ah, EEP_DB_2);
 536                         ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
 537                                                        ob2GHz, 3, 197, 0);
 538                         ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
 539                                                        db2GHz, 3, 194, 0);
 540                 } else {
 541                         ob5GHz = ah->eep_ops->get_eeprom(ah, EEP_OB_5);
 542                         db5GHz = ah->eep_ops->get_eeprom(ah, EEP_DB_5);
 543                         ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
 544                                                        ob5GHz, 3, 203, 0);
 545                         ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
 546                                                        db5GHz, 3, 200, 0);
 547                 }
 548         }
 549
 550         /* Setup Bank 7 Setup */
 551         RF_BANK_SETUP(ah->analogBank7Data, &ah->iniBank7, 1);
 552
 553         /* Write Analog registers */
 554         REG_WRITE_RF_ARRAY(&ah->iniBank0, ah->analogBank0Data,
 555                            regWrites);
 556         REG_WRITE_RF_ARRAY(&ah->iniBank1, ah->analogBank1Data,
 557                            regWrites);
 558         REG_WRITE_RF_ARRAY(&ah->iniBank2, ah->analogBank2Data,
 559                            regWrites);
 560         REG_WRITE_RF_ARRAY(&ah->iniBank3, ah->analogBank3Data,
 561                            regWrites);
 562         REG_WRITE_RF_ARRAY(&ah->iniBank6TPC, ah->analogBank6Data,
 563                            regWrites);
 564         REG_WRITE_RF_ARRAY(&ah->iniBank7, ah->analogBank7Data,
 565                            regWrites);
 566
 567         return true;
 568 }
 569
 570 static void ar5008_hw_init_bb(struct ath_hw *ah,
 571                               struct ath9k_channel *chan)
 572 {
 573         u32 synthDelay;
 574
 575         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
 576         if (IS_CHAN_B(chan))
 577                 synthDelay = (4 * synthDelay) / 22;
 578         else
 579                 synthDelay /= 10;
 580
 581         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
 582
 583         udelay(synthDelay + BASE_ACTIVATE_DELAY);
 584 }
 585
 586 static void ar5008_hw_init_chain_masks(struct ath_hw *ah)
 587 {
 588         int rx_chainmask, tx_chainmask;
 589
 590         rx_chainmask = ah->rxchainmask;
 591         tx_chainmask = ah->txchainmask;
 592
 593         ENABLE_REGWRITE_BUFFER(ah);
 594
 595         switch (rx_chainmask) {
 596         case 0x5:
 597                 DISABLE_REGWRITE_BUFFER(ah);
 598                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
 599                             AR_PHY_SWAP_ALT_CHAIN);
 600                 ENABLE_REGWRITE_BUFFER(ah);
 601         case 0x3:
 602                 if (ah->hw_version.macVersion == AR_SREV_REVISION_5416_10) {
 603                         REG_WRITE(ah, AR_PHY_RX_CHAINMASK, 0x7);
 604                         REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, 0x7);
 605                         break;
 606                 }
 607         case 0x1:
 608         case 0x2:
 609         case 0x7:
 610                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
 611                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
 612                 break;
 613         default:
 614                 break;
 615         }
 616
 617         REG_WRITE(ah, AR_SELFGEN_MASK, tx_chainmask);
 618
 619         REGWRITE_BUFFER_FLUSH(ah);
 620         DISABLE_REGWRITE_BUFFER(ah);
 621
 622         if (tx_chainmask == 0x5) {
 623                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
 624                             AR_PHY_SWAP_ALT_CHAIN);
 625         }
 626         if (AR_SREV_9100(ah))
 627                 REG_WRITE(ah, AR_PHY_ANALOG_SWAP,
 628                           REG_READ(ah, AR_PHY_ANALOG_SWAP) | 0x00000001);
 629 }
 630
 631 static void ar5008_hw_override_ini(struct ath_hw *ah,
 632                                    struct ath9k_channel *chan)
 633 {
 634         u32 val;
 635
 636         /*
 637          * Set the RX_ABORT and RX_DIS and clear if off only after
 638          * RXE is set for MAC. This prevents frames with corrupted
 639          * descriptor status.
 640          */
 641         REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
 642
 643         if (AR_SREV_9280_10_OR_LATER(ah)) {
 644                 val = REG_READ(ah, AR_PCU_MISC_MODE2);
 645
 646                 if (!AR_SREV_9271(ah))
 647                         val &= ~AR_PCU_MISC_MODE2_HWWAR1;
 648
 649                 if (AR_SREV_9287_10_OR_LATER(ah))
 650                         val = val & (~AR_PCU_MISC_MODE2_HWWAR2);
 651
 652                 REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
 653         }
 654
 655         if (!AR_SREV_5416_20_OR_LATER(ah) ||
 656             AR_SREV_9280_10_OR_LATER(ah))
 657                 return;
 658         /*
 659          * Disable BB clock gating
 660          * Necessary to avoid issues on AR5416 2.0
 661          */
 662         REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
 663
 664         /*
 665          * Disable RIFS search on some chips to avoid baseband
 666          * hang issues.
 667          */
 668         if (AR_SREV_9100(ah) || AR_SREV_9160(ah)) {
 669                 val = REG_READ(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS);
 670                 val &= ~AR_PHY_RIFS_INIT_DELAY;
 671                 REG_WRITE(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS, val);
 672         }
 673 }
 674
 675 static void ar5008_hw_set_channel_regs(struct ath_hw *ah,
 676                                        struct ath9k_channel *chan)
 677 {
 678         u32 phymode;
 679         u32 enableDacFifo = 0;
 680
 681         if (AR_SREV_9285_10_OR_LATER(ah))
 682                 enableDacFifo = (REG_READ(ah, AR_PHY_TURBO) &
 683                                          AR_PHY_FC_ENABLE_DAC_FIFO);
 684
 685         phymode = AR_PHY_FC_HT_EN | AR_PHY_FC_SHORT_GI_40
 686                 | AR_PHY_FC_SINGLE_HT_LTF1 | AR_PHY_FC_WALSH | enableDacFifo;
 687
 688         if (IS_CHAN_HT40(chan)) {
 689                 phymode |= AR_PHY_FC_DYN2040_EN;
 690
 691                 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
 692                     (chan->chanmode == CHANNEL_G_HT40PLUS))
 693                         phymode |= AR_PHY_FC_DYN2040_PRI_CH;
 694
 695         }
 696         REG_WRITE(ah, AR_PHY_TURBO, phymode);
 697
 698         ath9k_hw_set11nmac2040(ah);
 699
 700         ENABLE_REGWRITE_BUFFER(ah);
 701
 702         REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
 703         REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
 704
 705         REGWRITE_BUFFER_FLUSH(ah);
 706         DISABLE_REGWRITE_BUFFER(ah);
 707 }
 708
 709
 710 static int ar5008_hw_process_ini(struct ath_hw *ah,
 711                                  struct ath9k_channel *chan)
 712 {
 713         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
 714         int i, regWrites = 0;
 715         struct ieee80211_channel *channel = chan->chan;
 716         u32 modesIndex, freqIndex;
 717
 718         switch (chan->chanmode) {
 719         case CHANNEL_A:
 720         case CHANNEL_A_HT20:
 721                 modesIndex = 1;
 722                 freqIndex = 1;
 723                 break;
 724         case CHANNEL_A_HT40PLUS:
 725         case CHANNEL_A_HT40MINUS:
 726                 modesIndex = 2;
 727                 freqIndex = 1;
 728                 break;
 729         case CHANNEL_G:
 730         case CHANNEL_G_HT20:
 731         case CHANNEL_B:
 732                 modesIndex = 4;
 733                 freqIndex = 2;
 734                 break;
 735         case CHANNEL_G_HT40PLUS:
 736         case CHANNEL_G_HT40MINUS:
 737                 modesIndex = 3;
 738                 freqIndex = 2;
 739                 break;
 740
 741         default:
 742                 return -EINVAL;
 743         }
 744
 745         if (AR_SREV_9287_12_OR_LATER(ah)) {
 746                 /* Enable ASYNC FIFO */
 747                 REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
 748                                 AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
 749                 REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
 750                 REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
 751                                 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
 752                 REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
 753                                 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
 754         }
 755
 756         /*
 757          * Set correct baseband to analog shift setting to
 758          * access analog chips.
 759          */
 760         REG_WRITE(ah, AR_PHY(0), 0x00000007);
 761
 762         /* Write ADDAC shifts */
 763         REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_EXTERNAL_RADIO);
 764         ah->eep_ops->set_addac(ah, chan);
 765
 766         if (AR_SREV_5416_22_OR_LATER(ah)) {
 767                 REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
 768         } else {
 769                 struct ar5416IniArray temp;
 770                 u32 addacSize =
 771                         sizeof(u32) * ah->iniAddac.ia_rows *
 772                         ah->iniAddac.ia_columns;
 773
 774                 /* For AR5416 2.0/2.1 */
 775                 memcpy(ah->addac5416_21,
 776                        ah->iniAddac.ia_array, addacSize);
 777
 778                 /* override CLKDRV value at [row, column] = [31, 1] */
 779                 (ah->addac5416_21)[31 * ah->iniAddac.ia_columns + 1] = 0;
 780
 781                 temp.ia_array = ah->addac5416_21;
 782                 temp.ia_columns = ah->iniAddac.ia_columns;
 783                 temp.ia_rows = ah->iniAddac.ia_rows;
 784                 REG_WRITE_ARRAY(&temp, 1, regWrites);
 785         }
 786
 787         REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC);
 788
 789         ENABLE_REGWRITE_BUFFER(ah);
 790
 791         for (i = 0; i < ah->iniModes.ia_rows; i++) {
 792                 u32 reg = INI_RA(&ah->iniModes, i, 0);
 793                 u32 val = INI_RA(&ah->iniModes, i, modesIndex);
 794
 795                 if (reg == AR_AN_TOP2 && ah->need_an_top2_fixup)
 796                         val &= ~AR_AN_TOP2_PWDCLKIND;
 797
 798                 REG_WRITE(ah, reg, val);
 799
 800                 if (reg >= 0x7800 && reg < 0x78a0
 801                     && ah->config.analog_shiftreg) {
 802                         udelay(100);
 803                 }
 804
 805                 DO_DELAY(regWrites);
 806         }
 807
 808         REGWRITE_BUFFER_FLUSH(ah);
 809         DISABLE_REGWRITE_BUFFER(ah);
 810
 811         if (AR_SREV_9280(ah) || AR_SREV_9287_10_OR_LATER(ah))
 812                 REG_WRITE_ARRAY(&ah->iniModesRxGain, modesIndex, regWrites);
 813
 814         if (AR_SREV_9280(ah) || AR_SREV_9285_12_OR_LATER(ah) ||
 815             AR_SREV_9287_10_OR_LATER(ah))
 816                 REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
 817
 818         if (AR_SREV_9271_10(ah))
 819                 REG_WRITE_ARRAY(&ah->iniModes_9271_1_0_only,
 820                                 modesIndex, regWrites);
 821
 822         ENABLE_REGWRITE_BUFFER(ah);
 823
 824         /* Write common array parameters */
 825         for (i = 0; i < ah->iniCommon.ia_rows; i++) {
 826                 u32 reg = INI_RA(&ah->iniCommon, i, 0);
 827                 u32 val = INI_RA(&ah->iniCommon, i, 1);
 828
 829                 REG_WRITE(ah, reg, val);
 830
 831                 if (reg >= 0x7800 && reg < 0x78a0
 832                     && ah->config.analog_shiftreg) {
 833                         udelay(100);
 834                 }
 835
 836                 DO_DELAY(regWrites);
 837         }
 838
 839         REGWRITE_BUFFER_FLUSH(ah);
 840         DISABLE_REGWRITE_BUFFER(ah);
 841
 842         if (AR_SREV_9271(ah)) {
 843                 if (ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE) == 1)
 844                         REG_WRITE_ARRAY(&ah->iniModes_high_power_tx_gain_9271,
 845                                         modesIndex, regWrites);
 846                 else
 847                         REG_WRITE_ARRAY(&ah->iniModes_normal_power_tx_gain_9271,
 848                                         modesIndex, regWrites);
 849         }
 850
 851         REG_WRITE_ARRAY(&ah->iniBB_RfGain, freqIndex, regWrites);
 852
 853         if (IS_CHAN_A_FAST_CLOCK(ah, chan)) {
 854                 REG_WRITE_ARRAY(&ah->iniModesAdditional, modesIndex,
 855                                 regWrites);
 856         }
 857
 858         ar5008_hw_override_ini(ah, chan);
 859         ar5008_hw_set_channel_regs(ah, chan);
 860         ar5008_hw_init_chain_masks(ah);
 861         ath9k_olc_init(ah);
 862
 863         /* Set TX power */
 864         ah->eep_ops->set_txpower(ah, chan,
 865                                  ath9k_regd_get_ctl(regulatory, chan),
 866                                  channel->max_antenna_gain * 2,
 867                                  channel->max_power * 2,
 868                                  min((u32) MAX_RATE_POWER,
 869                                  (u32) regulatory->power_limit));
 870
 871         /* Write analog registers */
 872         if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
 873                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
 874                           "ar5416SetRfRegs failed\n");
 875                 return -EIO;
 876         }
 877
 878         return 0;
 879 }
 880
 881 static void ar5008_hw_set_rfmode(struct ath_hw *ah, struct ath9k_channel *chan)
 882 {
 883         u32 rfMode = 0;
 884
 885         if (chan == NULL)
 886                 return;
 887
 888         rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
 889                 ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
 890
 891         if (!AR_SREV_9280_10_OR_LATER(ah))
 892                 rfMode |= (IS_CHAN_5GHZ(chan)) ?
 893                         AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ;
 894
 895         if (IS_CHAN_A_FAST_CLOCK(ah, chan))
 896                 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
 897
 898         REG_WRITE(ah, AR_PHY_MODE, rfMode);
 899 }
 900
 901 static void ar5008_hw_mark_phy_inactive(struct ath_hw *ah)
 902 {
 903         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
 904 }
 905
 906 static void ar5008_hw_set_delta_slope(struct ath_hw *ah,
 907                                       struct ath9k_channel *chan)
 908 {
 909         u32 coef_scaled, ds_coef_exp, ds_coef_man;
 910         u32 clockMhzScaled = 0x64000000;
 911         struct chan_centers centers;
 912
 913         if (IS_CHAN_HALF_RATE(chan))
 914                 clockMhzScaled = clockMhzScaled >> 1;
 915         else if (IS_CHAN_QUARTER_RATE(chan))
 916                 clockMhzScaled = clockMhzScaled >> 2;
 917
 918         ath9k_hw_get_channel_centers(ah, chan, &centers);
 919         coef_scaled = clockMhzScaled / centers.synth_center;
 920
 921         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
 922                                       &ds_coef_exp);
 923
 924         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
 925                       AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
 926         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
 927                       AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
 928
 929         coef_scaled = (9 * coef_scaled) / 10;
 930
 931         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
 932                                       &ds_coef_exp);
 933
 934         REG_RMW_FIELD(ah, AR_PHY_HALFGI,
 935                       AR_PHY_HALFGI_DSC_MAN, ds_coef_man);
 936         REG_RMW_FIELD(ah, AR_PHY_HALFGI,
 937                       AR_PHY_HALFGI_DSC_EXP, ds_coef_exp);
 938 }
 939
 940 static bool ar5008_hw_rfbus_req(struct ath_hw *ah)
 941 {
 942         REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
 943         return ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
 944                            AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT);
 945 }
 946
 947 static void ar5008_hw_rfbus_done(struct ath_hw *ah)
 948 {
 949         u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
 950         if (IS_CHAN_B(ah->curchan))
 951                 synthDelay = (4 * synthDelay) / 22;
 952         else
 953                 synthDelay /= 10;
 954
 955         udelay(synthDelay + BASE_ACTIVATE_DELAY);
 956
 957         REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
 958 }
 959
 960 static void ar5008_hw_enable_rfkill(struct ath_hw *ah)
 961 {
 962         REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
 963                     AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
 964
 965         REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
 966                     AR_GPIO_INPUT_MUX2_RFSILENT);
 967
 968         ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
 969         REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
 970 }
 971
 972 static void ar5008_restore_chainmask(struct ath_hw *ah)
 973 {
 974         int rx_chainmask = ah->rxchainmask;
 975
 976         if ((rx_chainmask == 0x5) || (rx_chainmask == 0x3)) {
 977                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
 978                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
 979         }
 980 }
 981
 982 static void ar5008_set_diversity(struct ath_hw *ah, bool value)
 983 {
 984         u32 v = REG_READ(ah, AR_PHY_CCK_DETECT);
 985         if (value)
 986                 v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
 987         else
 988                 v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
 989         REG_WRITE(ah, AR_PHY_CCK_DETECT, v);
 990 }
 991
 992 static u32 ar9100_hw_compute_pll_control(struct ath_hw *ah,
 993                                          struct ath9k_channel *chan)
 994 {
 995         if (chan && IS_CHAN_5GHZ(chan))
 996                 return 0x1450;
 997         return 0x1458;
 998 }
 999
1000 static u32 ar9160_hw_compute_pll_control(struct ath_hw *ah,
1001                                          struct ath9k_channel *chan)
1002 {
1003         u32 pll;
1004
1005         pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
1006
1007         if (chan && IS_CHAN_HALF_RATE(chan))
1008                 pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
1009         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1010                 pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
1011
1012         if (chan && IS_CHAN_5GHZ(chan))
1013                 pll |= SM(0x50, AR_RTC_9160_PLL_DIV);
1014         else
1015                 pll |= SM(0x58, AR_RTC_9160_PLL_DIV);
1016
1017         return pll;
1018 }
1019
1020 static u32 ar5008_hw_compute_pll_control(struct ath_hw *ah,
1021                                          struct ath9k_channel *chan)
1022 {
1023         u32 pll;
1024
1025         pll = AR_RTC_PLL_REFDIV_5 | AR_RTC_PLL_DIV2;
1026
1027         if (chan && IS_CHAN_HALF_RATE(chan))
1028                 pll |= SM(0x1, AR_RTC_PLL_CLKSEL);
1029         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1030                 pll |= SM(0x2, AR_RTC_PLL_CLKSEL);
1031
1032         if (chan && IS_CHAN_5GHZ(chan))
1033                 pll |= SM(0xa, AR_RTC_PLL_DIV);
1034         else
1035                 pll |= SM(0xb, AR_RTC_PLL_DIV);
1036
1037         return pll;
1038 }
1039
1040 static bool ar5008_hw_ani_control(struct ath_hw *ah,
1041                                   enum ath9k_ani_cmd cmd, int param)
1042 {
1043         struct ar5416AniState *aniState = ah->curani;
1044         struct ath_common *common = ath9k_hw_common(ah);
1045
1046         switch (cmd & ah->ani_function) {
1047         case ATH9K_ANI_NOISE_IMMUNITY_LEVEL:{
1048                 u32 level = param;
1049
1050                 if (level >= ARRAY_SIZE(ah->totalSizeDesired)) {
1051                         ath_print(common, ATH_DBG_ANI,
1052                                   "level out of range (%u > %u)\n",
1053                                   level,
1054                                   (unsigned)ARRAY_SIZE(ah->totalSizeDesired));
1055                         return false;
1056                 }
1057
1058                 REG_RMW_FIELD(ah, AR_PHY_DESIRED_SZ,
1059                               AR_PHY_DESIRED_SZ_TOT_DES,
1060                               ah->totalSizeDesired[level]);
1061                 REG_RMW_FIELD(ah, AR_PHY_AGC_CTL1,
1062                               AR_PHY_AGC_CTL1_COARSE_LOW,
1063                               ah->coarse_low[level]);
1064                 REG_RMW_FIELD(ah, AR_PHY_AGC_CTL1,
1065                               AR_PHY_AGC_CTL1_COARSE_HIGH,
1066                               ah->coarse_high[level]);
1067                 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
1068                               AR_PHY_FIND_SIG_FIRPWR,
1069                               ah->firpwr[level]);
1070
1071                 if (level > aniState->noiseImmunityLevel)
1072                         ah->stats.ast_ani_niup++;
1073                 else if (level < aniState->noiseImmunityLevel)
1074                         ah->stats.ast_ani_nidown++;
1075                 aniState->noiseImmunityLevel = level;
1076                 break;
1077         }
1078         case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{
1079                 const int m1ThreshLow[] = { 127, 50 };
1080                 const int m2ThreshLow[] = { 127, 40 };
1081                 const int m1Thresh[] = { 127, 0x4d };
1082                 const int m2Thresh[] = { 127, 0x40 };
1083                 const int m2CountThr[] = { 31, 16 };
1084                 const int m2CountThrLow[] = { 63, 48 };
1085                 u32 on = param ? 1 : 0;
1086
1087                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
1088                               AR_PHY_SFCORR_LOW_M1_THRESH_LOW,
1089                               m1ThreshLow[on]);
1090                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
1091                               AR_PHY_SFCORR_LOW_M2_THRESH_LOW,
1092                               m2ThreshLow[on]);
1093                 REG_RMW_FIELD(ah, AR_PHY_SFCORR,
1094                               AR_PHY_SFCORR_M1_THRESH,
1095                               m1Thresh[on]);
1096                 REG_RMW_FIELD(ah, AR_PHY_SFCORR,
1097                               AR_PHY_SFCORR_M2_THRESH,
1098                               m2Thresh[on]);
1099                 REG_RMW_FIELD(ah, AR_PHY_SFCORR,
1100                               AR_PHY_SFCORR_M2COUNT_THR,
1101                               m2CountThr[on]);
1102                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
1103                               AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW,
1104                               m2CountThrLow[on]);
1105
1106                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
1107                               AR_PHY_SFCORR_EXT_M1_THRESH_LOW,
1108                               m1ThreshLow[on]);
1109                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
1110                               AR_PHY_SFCORR_EXT_M2_THRESH_LOW,
1111                               m2ThreshLow[on]);
1112                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
1113                               AR_PHY_SFCORR_EXT_M1_THRESH,
1114                               m1Thresh[on]);
1115                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
1116                               AR_PHY_SFCORR_EXT_M2_THRESH,
1117                               m2Thresh[on]);
1118
1119                 if (on)
1120                         REG_SET_BIT(ah, AR_PHY_SFCORR_LOW,
1121                                     AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
1122                 else
1123                         REG_CLR_BIT(ah, AR_PHY_SFCORR_LOW,
1124                                     AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
1125
1126                 if (!on != aniState->ofdmWeakSigDetectOff) {
1127                         if (on)
1128                                 ah->stats.ast_ani_ofdmon++;
1129                         else
1130                                 ah->stats.ast_ani_ofdmoff++;
1131                         aniState->ofdmWeakSigDetectOff = !on;
1132                 }
1133                 break;
1134         }
1135         case ATH9K_ANI_CCK_WEAK_SIGNAL_THR:{
1136                 const int weakSigThrCck[] = { 8, 6 };
1137                 u32 high = param ? 1 : 0;
1138
1139                 REG_RMW_FIELD(ah, AR_PHY_CCK_DETECT,
1140                               AR_PHY_CCK_DETECT_WEAK_SIG_THR_CCK,
1141                               weakSigThrCck[high]);
1142                 if (high != aniState->cckWeakSigThreshold) {
1143                         if (high)
1144                                 ah->stats.ast_ani_cckhigh++;
1145                         else
1146                                 ah->stats.ast_ani_ccklow++;
1147                         aniState->cckWeakSigThreshold = high;
1148                 }
1149                 break;
1150         }
1151         case ATH9K_ANI_FIRSTEP_LEVEL:{
1152                 const int firstep[] = { 0, 4, 8 };
1153                 u32 level = param;
1154
1155                 if (level >= ARRAY_SIZE(firstep)) {
1156                         ath_print(common, ATH_DBG_ANI,
1157                                   "level out of range (%u > %u)\n",
1158                                   level,
1159                                   (unsigned) ARRAY_SIZE(firstep));
1160                         return false;
1161                 }
1162                 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
1163                               AR_PHY_FIND_SIG_FIRSTEP,
1164                               firstep[level]);
1165                 if (level > aniState->firstepLevel)
1166                         ah->stats.ast_ani_stepup++;
1167                 else if (level < aniState->firstepLevel)
1168                         ah->stats.ast_ani_stepdown++;
1169                 aniState->firstepLevel = level;
1170                 break;
1171         }
1172         case ATH9K_ANI_SPUR_IMMUNITY_LEVEL:{
1173                 const int cycpwrThr1[] = { 2, 4, 6, 8, 10, 12, 14, 16 };
1174                 u32 level = param;
1175
1176                 if (level >= ARRAY_SIZE(cycpwrThr1)) {
1177                         ath_print(common, ATH_DBG_ANI,
1178                                   "level out of range (%u > %u)\n",
1179                                   level,
1180                                   (unsigned) ARRAY_SIZE(cycpwrThr1));
1181                         return false;
1182                 }
1183                 REG_RMW_FIELD(ah, AR_PHY_TIMING5,
1184                               AR_PHY_TIMING5_CYCPWR_THR1,
1185                               cycpwrThr1[level]);
1186                 if (level > aniState->spurImmunityLevel)
1187                         ah->stats.ast_ani_spurup++;
1188                 else if (level < aniState->spurImmunityLevel)
1189                         ah->stats.ast_ani_spurdown++;
1190                 aniState->spurImmunityLevel = level;
1191                 break;
1192         }
1193         case ATH9K_ANI_PRESENT:
1194                 break;
1195         default:
1196                 ath_print(common, ATH_DBG_ANI,
1197                           "invalid cmd %u\n", cmd);
1198                 return false;
1199         }
1200
1201         ath_print(common, ATH_DBG_ANI, "ANI parameters:\n");
1202         ath_print(common, ATH_DBG_ANI,
1203                   "noiseImmunityLevel=%d, spurImmunityLevel=%d, "
1204                   "ofdmWeakSigDetectOff=%d\n",
1205                   aniState->noiseImmunityLevel,
1206                   aniState->spurImmunityLevel,
1207                   !aniState->ofdmWeakSigDetectOff);
1208         ath_print(common, ATH_DBG_ANI,
1209                   "cckWeakSigThreshold=%d, "
1210                   "firstepLevel=%d, listenTime=%d\n",
1211                   aniState->cckWeakSigThreshold,
1212                   aniState->firstepLevel,
1213                   aniState->listenTime);
1214         ath_print(common, ATH_DBG_ANI,
1215                 "cycleCount=%d, ofdmPhyErrCount=%d, cckPhyErrCount=%d\n\n",
1216                 aniState->cycleCount,
1217                 aniState->ofdmPhyErrCount,
1218                 aniState->cckPhyErrCount);
1219
1220         return true;
1221 }
1222
1223 static void ar5008_hw_do_getnf(struct ath_hw *ah,
1224                               int16_t nfarray[NUM_NF_READINGS])
1225 {
1226         struct ath_common *common = ath9k_hw_common(ah);
1227         int16_t nf;
1228
1229         nf = MS(REG_READ(ah, AR_PHY_CCA), AR_PHY_MINCCA_PWR);
1230         if (nf & 0x100)
1231                 nf = 0 - ((nf ^ 0x1ff) + 1);
1232         ath_print(common, ATH_DBG_CALIBRATE,
1233                   "NF calibrated [ctl] [chain 0] is %d\n", nf);
1234         nfarray[0] = nf;
1235
1236         nf = MS(REG_READ(ah, AR_PHY_CH1_CCA), AR_PHY_CH1_MINCCA_PWR);
1237         if (nf & 0x100)
1238                 nf = 0 - ((nf ^ 0x1ff) + 1);
1239         ath_print(common, ATH_DBG_CALIBRATE,
1240                   "NF calibrated [ctl] [chain 1] is %d\n", nf);
1241         nfarray[1] = nf;
1242
1243         nf = MS(REG_READ(ah, AR_PHY_CH2_CCA), AR_PHY_CH2_MINCCA_PWR);
1244         if (nf & 0x100)
1245                 nf = 0 - ((nf ^ 0x1ff) + 1);
1246         ath_print(common, ATH_DBG_CALIBRATE,
1247                   "NF calibrated [ctl] [chain 2] is %d\n", nf);
1248         nfarray[2] = nf;
1249
1250         nf = MS(REG_READ(ah, AR_PHY_EXT_CCA), AR_PHY_EXT_MINCCA_PWR);
1251         if (nf & 0x100)
1252                 nf = 0 - ((nf ^ 0x1ff) + 1);
1253         ath_print(common, ATH_DBG_CALIBRATE,
1254                   "NF calibrated [ext] [chain 0] is %d\n", nf);
1255         nfarray[3] = nf;
1256
1257         nf = MS(REG_READ(ah, AR_PHY_CH1_EXT_CCA), AR_PHY_CH1_EXT_MINCCA_PWR);
1258         if (nf & 0x100)
1259                 nf = 0 - ((nf ^ 0x1ff) + 1);
1260         ath_print(common, ATH_DBG_CALIBRATE,
1261                   "NF calibrated [ext] [chain 1] is %d\n", nf);
1262         nfarray[4] = nf;
1263
1264         nf = MS(REG_READ(ah, AR_PHY_CH2_EXT_CCA), AR_PHY_CH2_EXT_MINCCA_PWR);
1265         if (nf & 0x100)
1266                 nf = 0 - ((nf ^ 0x1ff) + 1);
1267         ath_print(common, ATH_DBG_CALIBRATE,
1268                   "NF calibrated [ext] [chain 2] is %d\n", nf);
1269         nfarray[5] = nf;
1270 }
1271
1272 static void ar5008_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan)
1273 {
1274         struct ath9k_nfcal_hist *h;
1275         int i, j;
1276         int32_t val;
1277         const u32 ar5416_cca_regs[6] = {
1278                 AR_PHY_CCA,
1279                 AR_PHY_CH1_CCA,
1280                 AR_PHY_CH2_CCA,
1281                 AR_PHY_EXT_CCA,
1282                 AR_PHY_CH1_EXT_CCA,
1283                 AR_PHY_CH2_EXT_CCA
1284         };
1285         u8 chainmask, rx_chain_status;
1286
1287         rx_chain_status = REG_READ(ah, AR_PHY_RX_CHAINMASK);
1288         if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
1289                 chainmask = 0x9;
1290         else if (AR_SREV_9280(ah) || AR_SREV_9287(ah)) {
1291                 if ((rx_chain_status & 0x2) || (rx_chain_status & 0x4))
1292                         chainmask = 0x1B;
1293                 else
1294                         chainmask = 0x09;
1295         } else {
1296                 if (rx_chain_status & 0x4)
1297                         chainmask = 0x3F;
1298                 else if (rx_chain_status & 0x2)
1299                         chainmask = 0x1B;
1300                 else
1301                         chainmask = 0x09;
1302         }
1303
1304         h = ah->nfCalHist;
1305
1306         for (i = 0; i < NUM_NF_READINGS; i++) {
1307                 if (chainmask & (1 << i)) {
1308                         val = REG_READ(ah, ar5416_cca_regs[i]);
1309                         val &= 0xFFFFFE00;
1310                         val |= (((u32) (h[i].privNF) << 1) & 0x1ff);
1311                         REG_WRITE(ah, ar5416_cca_regs[i], val);
1312                 }
1313         }
1314
1315         REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,
1316                     AR_PHY_AGC_CONTROL_ENABLE_NF);
1317         REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,
1318                     AR_PHY_AGC_CONTROL_NO_UPDATE_NF);
1319         REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NF);
1320
1321         for (j = 0; j < 5; j++) {
1322                 if ((REG_READ(ah, AR_PHY_AGC_CONTROL) &
1323                      AR_PHY_AGC_CONTROL_NF) == 0)
1324                         break;
1325                 udelay(50);
1326         }
1327
1328         ENABLE_REGWRITE_BUFFER(ah);
1329
1330         for (i = 0; i < NUM_NF_READINGS; i++) {
1331                 if (chainmask & (1 << i)) {
1332                         val = REG_READ(ah, ar5416_cca_regs[i]);
1333                         val &= 0xFFFFFE00;
1334                         val |= (((u32) (-50) << 1) & 0x1ff);
1335                         REG_WRITE(ah, ar5416_cca_regs[i], val);
1336                 }
1337         }
1338
1339         REGWRITE_BUFFER_FLUSH(ah);
1340         DISABLE_REGWRITE_BUFFER(ah);
1341 }
1342
1343 void ar5008_hw_attach_phy_ops(struct ath_hw *ah)
1344 {
1345         struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
1346
1347         priv_ops->rf_set_freq = ar5008_hw_set_channel;
1348         priv_ops->spur_mitigate_freq = ar5008_hw_spur_mitigate;
1349
1350         priv_ops->rf_alloc_ext_banks = ar5008_hw_rf_alloc_ext_banks;
1351         priv_ops->rf_free_ext_banks = ar5008_hw_rf_free_ext_banks;
1352         priv_ops->set_rf_regs = ar5008_hw_set_rf_regs;
1353         priv_ops->set_channel_regs = ar5008_hw_set_channel_regs;
1354         priv_ops->init_bb = ar5008_hw_init_bb;
1355         priv_ops->process_ini = ar5008_hw_process_ini;
1356         priv_ops->set_rfmode = ar5008_hw_set_rfmode;
1357         priv_ops->mark_phy_inactive = ar5008_hw_mark_phy_inactive;
1358         priv_ops->set_delta_slope = ar5008_hw_set_delta_slope;
1359         priv_ops->rfbus_req = ar5008_hw_rfbus_req;
1360         priv_ops->rfbus_done = ar5008_hw_rfbus_done;
1361         priv_ops->enable_rfkill = ar5008_hw_enable_rfkill;
1362         priv_ops->restore_chainmask = ar5008_restore_chainmask;
1363         priv_ops->set_diversity = ar5008_set_diversity;
1364         priv_ops->ani_control = ar5008_hw_ani_control;
1365         priv_ops->do_getnf = ar5008_hw_do_getnf;
1366         priv_ops->loadnf = ar5008_hw_loadnf;
1367
1368         if (AR_SREV_9100(ah))
1369                 priv_ops->compute_pll_control = ar9100_hw_compute_pll_control;
1370         else if (AR_SREV_9160_10_OR_LATER(ah))
1371                 priv_ops->compute_pll_control = ar9160_hw_compute_pll_control;
1372         else
1373                 priv_ops->compute_pll_control = ar5008_hw_compute_pll_control;
1374 }