drivers/net/wireless/ath/ath9k/ar9003_phy.c

   1 /*
   2  * Copyright (c) 2010-2011 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/export.h>
  18 #include "hw.h"
  19 #include "ar9003_phy.h"
  20
  21 static const int firstep_table[] =
  22 /* level:  0   1   2   3   4   5   6   7   8  */
  23         { -4, -2,  0,  2,  4,  6,  8, 10, 12 }; /* lvl 0-8, default 2 */
  24
  25 static const int cycpwrThr1_table[] =
  26 /* level:  0   1   2   3   4   5   6   7   8  */
  27         { -6, -4, -2,  0,  2,  4,  6,  8 };     /* lvl 0-7, default 3 */
  28
  29 /*
  30  * register values to turn OFDM weak signal detection OFF
  31  */
  32 static const int m1ThreshLow_off = 127;
  33 static const int m2ThreshLow_off = 127;
  34 static const int m1Thresh_off = 127;
  35 static const int m2Thresh_off = 127;
  36 static const int m2CountThr_off =  31;
  37 static const int m2CountThrLow_off =  63;
  38 static const int m1ThreshLowExt_off = 127;
  39 static const int m2ThreshLowExt_off = 127;
  40 static const int m1ThreshExt_off = 127;
  41 static const int m2ThreshExt_off = 127;
  42
  43 /**
  44  * ar9003_hw_set_channel - set channel on single-chip device
  45  * @ah: atheros hardware structure
  46  * @chan:
  47  *
  48  * This is the function to change channel on single-chip devices, that is
  49  * for AR9300 family of chipsets.
  50  *
  51  * This function takes the channel value in MHz and sets
  52  * hardware channel value. Assumes writes have been enabled to analog bus.
  53  *
  54  * Actual Expression,
  55  *
  56  * For 2GHz channel,
  57  * Channel Frequency = (3/4) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
  58  * (freq_ref = 40MHz)
  59  *
  60  * For 5GHz channel,
  61  * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^10)
  62  * (freq_ref = 40MHz/(24>>amodeRefSel))
  63  *
  64  * For 5GHz channels which are 5MHz spaced,
  65  * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
  66  * (freq_ref = 40MHz)
  67  */
  68 static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
  69 {
  70         u16 bMode, fracMode = 0, aModeRefSel = 0;
  71         u32 freq, chan_frac, div, channelSel = 0, reg32 = 0;
  72         struct chan_centers centers;
  73         int loadSynthChannel;
  74
  75         ath9k_hw_get_channel_centers(ah, chan, &centers);
  76         freq = centers.synth_center;
  77
  78         if (freq < 4800) {     /* 2 GHz, fractional mode */
  79                 if (AR_SREV_9330(ah)) {
  80                         if (ah->is_clk_25mhz)
  81                                 div = 75;
  82                         else
  83                                 div = 120;
  84
  85                         channelSel = (freq * 4) / div;
  86                         chan_frac = (((freq * 4) % div) * 0x20000) / div;
  87                         channelSel = (channelSel << 17) | chan_frac;
  88                 } else if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
  89                         /*
  90                          * freq_ref = 40 / (refdiva >> amoderefsel);
  91                          * where refdiva=1 and amoderefsel=0
  92                          * ndiv = ((chan_mhz * 4) / 3) / freq_ref;
  93                          * chansel = int(ndiv), chanfrac = (ndiv - chansel) * 0x20000
  94                          */
  95                         channelSel = (freq * 4) / 120;
  96                         chan_frac = (((freq * 4) % 120) * 0x20000) / 120;
  97                         channelSel = (channelSel << 17) | chan_frac;
  98                 } else if (AR_SREV_9340(ah)) {
  99                         if (ah->is_clk_25mhz) {
 100                                 channelSel = (freq * 2) / 75;
 101                                 chan_frac = (((freq * 2) % 75) * 0x20000) / 75;
 102                                 channelSel = (channelSel << 17) | chan_frac;
 103                         } else {
 104                                 channelSel = CHANSEL_2G(freq) >> 1;
 105                         }
 106                 } else if (AR_SREV_9550(ah)) {
 107                         if (ah->is_clk_25mhz)
 108                                 div = 75;
 109                         else
 110                                 div = 120;
 111
 112                         channelSel = (freq * 4) / div;
 113                         chan_frac = (((freq * 4) % div) * 0x20000) / div;
 114                         channelSel = (channelSel << 17) | chan_frac;
 115                 } else {
 116                         channelSel = CHANSEL_2G(freq);
 117                 }
 118                 /* Set to 2G mode */
 119                 bMode = 1;
 120         } else {
 121                 if ((AR_SREV_9340(ah) || AR_SREV_9550(ah)) &&
 122                     ah->is_clk_25mhz) {
 123                         channelSel = freq / 75;
 124                         chan_frac = ((freq % 75) * 0x20000) / 75;
 125                         channelSel = (channelSel << 17) | chan_frac;
 126                 } else {
 127                         channelSel = CHANSEL_5G(freq);
 128                         /* Doubler is ON, so, divide channelSel by 2. */
 129                         channelSel >>= 1;
 130                 }
 131                 /* Set to 5G mode */
 132                 bMode = 0;
 133         }
 134
 135         /* Enable fractional mode for all channels */
 136         fracMode = 1;
 137         aModeRefSel = 0;
 138         loadSynthChannel = 0;
 139
 140         reg32 = (bMode << 29);
 141         REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32);
 142
 143         /* Enable Long shift Select for Synthesizer */
 144         REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH4,
 145                       AR_PHY_SYNTH4_LONG_SHIFT_SELECT, 1);
 146
 147         /* Program Synth. setting */
 148         reg32 = (channelSel << 2) | (fracMode << 30) |
 149                 (aModeRefSel << 28) | (loadSynthChannel << 31);
 150         REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
 151
 152         /* Toggle Load Synth channel bit */
 153         loadSynthChannel = 1;
 154         reg32 = (channelSel << 2) | (fracMode << 30) |
 155                 (aModeRefSel << 28) | (loadSynthChannel << 31);
 156         REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
 157
 158         ah->curchan = chan;
 159
 160         return 0;
 161 }
 162
 163 /**
 164  * ar9003_hw_spur_mitigate_mrc_cck - convert baseband spur frequency
 165  * @ah: atheros hardware structure
 166  * @chan:
 167  *
 168  * For single-chip solutions. Converts to baseband spur frequency given the
 169  * input channel frequency and compute register settings below.
 170  *
 171  * Spur mitigation for MRC CCK
 172  */
 173 static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
 174                                             struct ath9k_channel *chan)
 175 {
 176         static const u32 spur_freq[4] = { 2420, 2440, 2464, 2480 };
 177         int cur_bb_spur, negative = 0, cck_spur_freq;
 178         int i;
 179         int range, max_spur_cnts, synth_freq;
 180         u8 *spur_fbin_ptr = ar9003_get_spur_chan_ptr(ah, IS_CHAN_2GHZ(chan));
 181
 182         /*
 183          * Need to verify range +/- 10 MHz in control channel, otherwise spur
 184          * is out-of-band and can be ignored.
 185          */
 186
 187         if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
 188             AR_SREV_9550(ah)) {
 189                 if (spur_fbin_ptr[0] == 0) /* No spur */
 190                         return;
 191                 max_spur_cnts = 5;
 192                 if (IS_CHAN_HT40(chan)) {
 193                         range = 19;
 194                         if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 195                                            AR_PHY_GC_DYN2040_PRI_CH) == 0)
 196                                 synth_freq = chan->channel + 10;
 197                         else
 198                                 synth_freq = chan->channel - 10;
 199                 } else {
 200                         range = 10;
 201                         synth_freq = chan->channel;
 202                 }
 203         } else {
 204                 range = AR_SREV_9462(ah) ? 5 : 10;
 205                 max_spur_cnts = 4;
 206                 synth_freq = chan->channel;
 207         }
 208
 209         for (i = 0; i < max_spur_cnts; i++) {
 210                 if (AR_SREV_9462(ah) && (i == 0 || i == 3))
 211                         continue;
 212
 213                 negative = 0;
 214                 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
 215                     AR_SREV_9550(ah))
 216                         cur_bb_spur = ath9k_hw_fbin2freq(spur_fbin_ptr[i],
 217                                                          IS_CHAN_2GHZ(chan));
 218                 else
 219                         cur_bb_spur = spur_freq[i];
 220
 221                 cur_bb_spur -= synth_freq;
 222                 if (cur_bb_spur < 0) {
 223                         negative = 1;
 224                         cur_bb_spur = -cur_bb_spur;
 225                 }
 226                 if (cur_bb_spur < range) {
 227                         cck_spur_freq = (int)((cur_bb_spur << 19) / 11);
 228
 229                         if (negative == 1)
 230                                 cck_spur_freq = -cck_spur_freq;
 231
 232                         cck_spur_freq = cck_spur_freq & 0xfffff;
 233
 234                         REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
 235                                       AR_PHY_AGC_CONTROL_YCOK_MAX, 0x7);
 236                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 237                                       AR_PHY_CCK_SPUR_MIT_SPUR_RSSI_THR, 0x7f);
 238                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 239                                       AR_PHY_CCK_SPUR_MIT_SPUR_FILTER_TYPE,
 240                                       0x2);
 241                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 242                                       AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT,
 243                                       0x1);
 244                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 245                                       AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ,
 246                                       cck_spur_freq);
 247
 248                         return;
 249                 }
 250         }
 251
 252         REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
 253                       AR_PHY_AGC_CONTROL_YCOK_MAX, 0x5);
 254         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 255                       AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT, 0x0);
 256         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 257                       AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ, 0x0);
 258 }
 259
 260 /* Clean all spur register fields */
 261 static void ar9003_hw_spur_ofdm_clear(struct ath_hw *ah)
 262 {
 263         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 264                       AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0);
 265         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 266                       AR_PHY_TIMING11_SPUR_FREQ_SD, 0);
 267         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 268                       AR_PHY_TIMING11_SPUR_DELTA_PHASE, 0);
 269         REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 270                       AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, 0);
 271         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 272                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0);
 273         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 274                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0);
 275         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 276                       AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0);
 277         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 278                       AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 0);
 279         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 280                       AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 0);
 281
 282         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 283                       AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0);
 284         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 285                       AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0);
 286         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 287                       AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0);
 288         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 289                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, 0);
 290         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 291                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, 0);
 292         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 293                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, 0);
 294         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 295                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0);
 296         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 297                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0);
 298         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 299                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0);
 300         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 301                       AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0);
 302 }
 303
 304 static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
 305                                 int freq_offset,
 306                                 int spur_freq_sd,
 307                                 int spur_delta_phase,
 308                                 int spur_subchannel_sd,
 309                                 int range,
 310                                 int synth_freq)
 311 {
 312         int mask_index = 0;
 313
 314         /* OFDM Spur mitigation */
 315         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 316                  AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0x1);
 317         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 318                       AR_PHY_TIMING11_SPUR_FREQ_SD, spur_freq_sd);
 319         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 320                       AR_PHY_TIMING11_SPUR_DELTA_PHASE, spur_delta_phase);
 321         REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 322                       AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, spur_subchannel_sd);
 323         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 324                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0x1);
 325
 326         if (!(AR_SREV_9565(ah) && range == 10 && synth_freq == 2437))
 327                 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 328                               AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1);
 329
 330         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 331                       AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0x1);
 332         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 333                       AR_PHY_SPUR_REG_SPUR_RSSI_THRESH, 34);
 334         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 335                       AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1);
 336
 337         if (!AR_SREV_9340(ah) &&
 338             REG_READ_FIELD(ah, AR_PHY_MODE,
 339                            AR_PHY_MODE_DYNAMIC) == 0x1)
 340                 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 341                               AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1);
 342
 343         mask_index = (freq_offset << 4) / 5;
 344         if (mask_index < 0)
 345                 mask_index = mask_index - 1;
 346
 347         mask_index = mask_index & 0x7f;
 348
 349         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 350                       AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0x1);
 351         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 352                       AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0x1);
 353         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 354                       AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0x1);
 355         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 356                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, mask_index);
 357         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 358                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, mask_index);
 359         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 360                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, mask_index);
 361         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 362                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0xc);
 363         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 364                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0xc);
 365         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 366                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
 367         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 368                       AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0xff);
 369 }
 370
 371 static void ar9003_hw_spur_ofdm_9565(struct ath_hw *ah,
 372                                      int freq_offset)
 373 {
 374         int mask_index = 0;
 375
 376         mask_index = (freq_offset << 4) / 5;
 377         if (mask_index < 0)
 378                 mask_index = mask_index - 1;
 379
 380         mask_index = mask_index & 0x7f;
 381
 382         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 383                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_B,
 384                       mask_index);
 385
 386         /* A == B */
 387         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_B,
 388                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A,
 389                       mask_index);
 390
 391         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 392                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_B,
 393                       mask_index);
 394         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 395                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_B, 0xe);
 396         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 397                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_B, 0xe);
 398
 399         /* A == B */
 400         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_B,
 401                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
 402 }
 403
 404 static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah,
 405                                      struct ath9k_channel *chan,
 406                                      int freq_offset,
 407                                      int range,
 408                                      int synth_freq)
 409 {
 410         int spur_freq_sd = 0;
 411         int spur_subchannel_sd = 0;
 412         int spur_delta_phase = 0;
 413
 414         if (IS_CHAN_HT40(chan)) {
 415                 if (freq_offset < 0) {
 416                         if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 417                                            AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
 418                                 spur_subchannel_sd = 1;
 419                         else
 420                                 spur_subchannel_sd = 0;
 421
 422                         spur_freq_sd = ((freq_offset + 10) << 9) / 11;
 423
 424                 } else {
 425                         if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 426                             AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
 427                                 spur_subchannel_sd = 0;
 428                         else
 429                                 spur_subchannel_sd = 1;
 430
 431                         spur_freq_sd = ((freq_offset - 10) << 9) / 11;
 432
 433                 }
 434
 435                 spur_delta_phase = (freq_offset << 17) / 5;
 436
 437         } else {
 438                 spur_subchannel_sd = 0;
 439                 spur_freq_sd = (freq_offset << 9) /11;
 440                 spur_delta_phase = (freq_offset << 18) / 5;
 441         }
 442
 443         spur_freq_sd = spur_freq_sd & 0x3ff;
 444         spur_delta_phase = spur_delta_phase & 0xfffff;
 445
 446         ar9003_hw_spur_ofdm(ah,
 447                             freq_offset,
 448                             spur_freq_sd,
 449                             spur_delta_phase,
 450                             spur_subchannel_sd,
 451                             range, synth_freq);
 452 }
 453
 454 /* Spur mitigation for OFDM */
 455 static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah,
 456                                          struct ath9k_channel *chan)
 457 {
 458         int synth_freq;
 459         int range = 10;
 460         int freq_offset = 0;
 461         int mode;
 462         u8* spurChansPtr;
 463         unsigned int i;
 464         struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
 465
 466         if (IS_CHAN_5GHZ(chan)) {
 467                 spurChansPtr = &(eep->modalHeader5G.spurChans[0]);
 468                 mode = 0;
 469         }
 470         else {
 471                 spurChansPtr = &(eep->modalHeader2G.spurChans[0]);
 472                 mode = 1;
 473         }
 474
 475         if (spurChansPtr[0] == 0)
 476                 return; /* No spur in the mode */
 477
 478         if (IS_CHAN_HT40(chan)) {
 479                 range = 19;
 480                 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 481                                    AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
 482                         synth_freq = chan->channel - 10;
 483                 else
 484                         synth_freq = chan->channel + 10;
 485         } else {
 486                 range = 10;
 487                 synth_freq = chan->channel;
 488         }
 489
 490         ar9003_hw_spur_ofdm_clear(ah);
 491
 492         for (i = 0; i < AR_EEPROM_MODAL_SPURS && spurChansPtr[i]; i++) {
 493                 freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i], mode);
 494                 freq_offset -= synth_freq;
 495                 if (abs(freq_offset) < range) {
 496                         ar9003_hw_spur_ofdm_work(ah, chan, freq_offset,
 497                                                  range, synth_freq);
 498
 499                         if (AR_SREV_9565(ah) && (i < 4)) {
 500                                 freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i + 1],
 501                                                                  mode);
 502                                 freq_offset -= synth_freq;
 503                                 if (abs(freq_offset) < range)
 504                                         ar9003_hw_spur_ofdm_9565(ah, freq_offset);
 505                         }
 506
 507                         break;
 508                 }
 509         }
 510 }
 511
 512 static void ar9003_hw_spur_mitigate(struct ath_hw *ah,
 513                                     struct ath9k_channel *chan)
 514 {
 515         if (!AR_SREV_9565(ah))
 516                 ar9003_hw_spur_mitigate_mrc_cck(ah, chan);
 517         ar9003_hw_spur_mitigate_ofdm(ah, chan);
 518 }
 519
 520 static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
 521                                          struct ath9k_channel *chan)
 522 {
 523         u32 pll;
 524
 525         pll = SM(0x5, AR_RTC_9300_PLL_REFDIV);
 526
 527         if (chan && IS_CHAN_HALF_RATE(chan))
 528                 pll |= SM(0x1, AR_RTC_9300_PLL_CLKSEL);
 529         else if (chan && IS_CHAN_QUARTER_RATE(chan))
 530                 pll |= SM(0x2, AR_RTC_9300_PLL_CLKSEL);
 531
 532         pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);
 533
 534         return pll;
 535 }
 536
 537 static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
 538                                        struct ath9k_channel *chan)
 539 {
 540         u32 phymode;
 541         u32 enableDacFifo = 0;
 542
 543         enableDacFifo =
 544                 (REG_READ(ah, AR_PHY_GEN_CTRL) & AR_PHY_GC_ENABLE_DAC_FIFO);
 545
 546         /* Enable 11n HT, 20 MHz */
 547         phymode = AR_PHY_GC_HT_EN | AR_PHY_GC_SINGLE_HT_LTF1 |
 548                   AR_PHY_GC_SHORT_GI_40 | enableDacFifo;
 549
 550         /* Configure baseband for dynamic 20/40 operation */
 551         if (IS_CHAN_HT40(chan)) {
 552                 phymode |= AR_PHY_GC_DYN2040_EN;
 553                 /* Configure control (primary) channel at +-10MHz */
 554                 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
 555                     (chan->chanmode == CHANNEL_G_HT40PLUS))
 556                         phymode |= AR_PHY_GC_DYN2040_PRI_CH;
 557
 558         }
 559
 560         /* make sure we preserve INI settings */
 561         phymode |= REG_READ(ah, AR_PHY_GEN_CTRL);
 562         /* turn off Green Field detection for STA for now */
 563         phymode &= ~AR_PHY_GC_GF_DETECT_EN;
 564
 565         REG_WRITE(ah, AR_PHY_GEN_CTRL, phymode);
 566
 567         /* Configure MAC for 20/40 operation */
 568         ath9k_hw_set11nmac2040(ah);
 569
 570         /* global transmit timeout (25 TUs default)*/
 571         REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
 572         /* carrier sense timeout */
 573         REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
 574 }
 575
 576 static void ar9003_hw_init_bb(struct ath_hw *ah,
 577                               struct ath9k_channel *chan)
 578 {
 579         u32 synthDelay;
 580
 581         /*
 582          * Wait for the frequency synth to settle (synth goes on
 583          * via AR_PHY_ACTIVE_EN).  Read the phy active delay register.
 584          * Value is in 100ns increments.
 585          */
 586         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
 587
 588         /* Activate the PHY (includes baseband activate + synthesizer on) */
 589         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
 590         ath9k_hw_synth_delay(ah, chan, synthDelay);
 591 }
 592
 593 void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
 594 {
 595         if (ah->caps.tx_chainmask == 5 || ah->caps.rx_chainmask == 5)
 596                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
 597                             AR_PHY_SWAP_ALT_CHAIN);
 598
 599         REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx);
 600         REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx);
 601
 602         if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && (tx == 0x7))
 603                 tx = 3;
 604
 605         REG_WRITE(ah, AR_SELFGEN_MASK, tx);
 606 }
 607
 608 /*
 609  * Override INI values with chip specific configuration.
 610  */
 611 static void ar9003_hw_override_ini(struct ath_hw *ah)
 612 {
 613         u32 val;
 614
 615         /*
 616          * Set the RX_ABORT and RX_DIS and clear it only after
 617          * RXE is set for MAC. This prevents frames with
 618          * corrupted descriptor status.
 619          */
 620         REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
 621
 622         /*
 623          * For AR9280 and above, there is a new feature that allows
 624          * Multicast search based on both MAC Address and Key ID. By default,
 625          * this feature is enabled. But since the driver is not using this
 626          * feature, we switch it off; otherwise multicast search based on
 627          * MAC addr only will fail.
 628          */
 629         val = REG_READ(ah, AR_PCU_MISC_MODE2) & (~AR_ADHOC_MCAST_KEYID_ENABLE);
 630         REG_WRITE(ah, AR_PCU_MISC_MODE2,
 631                   val | AR_AGG_WEP_ENABLE_FIX | AR_AGG_WEP_ENABLE);
 632
 633         REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
 634                     AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV);
 635 }
 636
 637 static void ar9003_hw_prog_ini(struct ath_hw *ah,
 638                                struct ar5416IniArray *iniArr,
 639                                int column)
 640 {
 641         unsigned int i, regWrites = 0;
 642
 643         /* New INI format: Array may be undefined (pre, core, post arrays) */
 644         if (!iniArr->ia_array)
 645                 return;
 646
 647         /*
 648          * New INI format: Pre, core, and post arrays for a given subsystem
 649          * may be modal (> 2 columns) or non-modal (2 columns). Determine if
 650          * the array is non-modal and force the column to 1.
 651          */
 652         if (column >= iniArr->ia_columns)
 653                 column = 1;
 654
 655         for (i = 0; i < iniArr->ia_rows; i++) {
 656                 u32 reg = INI_RA(iniArr, i, 0);
 657                 u32 val = INI_RA(iniArr, i, column);
 658
 659                 REG_WRITE(ah, reg, val);
 660
 661                 DO_DELAY(regWrites);
 662         }
 663 }
 664
 665 static int ar9550_hw_get_modes_txgain_index(struct ath_hw *ah,
 666                                             struct ath9k_channel *chan)
 667 {
 668         int ret;
 669
 670         switch (chan->chanmode) {
 671         case CHANNEL_A:
 672         case CHANNEL_A_HT20:
 673                 if (chan->channel <= 5350)
 674                         ret = 1;
 675                 else if ((chan->channel > 5350) && (chan->channel <= 5600))
 676                         ret = 3;
 677                 else
 678                         ret = 5;
 679                 break;
 680
 681         case CHANNEL_A_HT40PLUS:
 682         case CHANNEL_A_HT40MINUS:
 683                 if (chan->channel <= 5350)
 684                         ret = 2;
 685                 else if ((chan->channel > 5350) && (chan->channel <= 5600))
 686                         ret = 4;
 687                 else
 688                         ret = 6;
 689                 break;
 690
 691         case CHANNEL_G:
 692         case CHANNEL_G_HT20:
 693         case CHANNEL_B:
 694                 ret = 8;
 695                 break;
 696
 697         case CHANNEL_G_HT40PLUS:
 698         case CHANNEL_G_HT40MINUS:
 699                 ret = 7;
 700                 break;
 701
 702         default:
 703                 ret = -EINVAL;
 704         }
 705
 706         return ret;
 707 }
 708
 709 static int ar9003_hw_process_ini(struct ath_hw *ah,
 710                                  struct ath9k_channel *chan)
 711 {
 712         unsigned int regWrites = 0, i;
 713         u32 modesIndex;
 714
 715         switch (chan->chanmode) {
 716         case CHANNEL_A:
 717         case CHANNEL_A_HT20:
 718                 modesIndex = 1;
 719                 break;
 720         case CHANNEL_A_HT40PLUS:
 721         case CHANNEL_A_HT40MINUS:
 722                 modesIndex = 2;
 723                 break;
 724         case CHANNEL_G:
 725         case CHANNEL_G_HT20:
 726         case CHANNEL_B:
 727                 modesIndex = 4;
 728                 break;
 729         case CHANNEL_G_HT40PLUS:
 730         case CHANNEL_G_HT40MINUS:
 731                 modesIndex = 3;
 732                 break;
 733
 734         default:
 735                 return -EINVAL;
 736         }
 737
 738         for (i = 0; i < ATH_INI_NUM_SPLIT; i++) {
 739                 ar9003_hw_prog_ini(ah, &ah->iniSOC[i], modesIndex);
 740                 ar9003_hw_prog_ini(ah, &ah->iniMac[i], modesIndex);
 741                 ar9003_hw_prog_ini(ah, &ah->iniBB[i], modesIndex);
 742                 ar9003_hw_prog_ini(ah, &ah->iniRadio[i], modesIndex);
 743                 if (i == ATH_INI_POST && AR_SREV_9462_20(ah))
 744                         ar9003_hw_prog_ini(ah,
 745                                            &ah->ini_radio_post_sys2ant,
 746                                            modesIndex);
 747         }
 748
 749         REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites);
 750         if (AR_SREV_9550(ah))
 751                 REG_WRITE_ARRAY(&ah->ini_modes_rx_gain_bounds, modesIndex,
 752                                 regWrites);
 753
 754         if (AR_SREV_9550(ah)) {
 755                 int modes_txgain_index;
 756
 757                 modes_txgain_index = ar9550_hw_get_modes_txgain_index(ah, chan);
 758                 if (modes_txgain_index < 0)
 759                         return -EINVAL;
 760
 761                 REG_WRITE_ARRAY(&ah->iniModesTxGain, modes_txgain_index,
 762                                 regWrites);
 763         } else {
 764                 REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
 765         }
 766
 767         /*
 768          * For 5GHz channels requiring Fast Clock, apply
 769          * different modal values.
 770          */
 771         if (IS_CHAN_A_FAST_CLOCK(ah, chan))
 772                 REG_WRITE_ARRAY(&ah->iniModesFastClock,
 773                                 modesIndex, regWrites);
 774
 775         REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites);
 776
 777         if (chan->channel == 2484)
 778                 ar9003_hw_prog_ini(ah, &ah->iniCckfirJapan2484, 1);
 779
 780         if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
 781                 REG_WRITE(ah, AR_GLB_SWREG_DISCONT_MODE,
 782                           AR_GLB_SWREG_DISCONT_EN_BT_WLAN);
 783
 784         ah->modes_index = modesIndex;
 785         ar9003_hw_override_ini(ah);
 786         ar9003_hw_set_channel_regs(ah, chan);
 787         ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
 788         ath9k_hw_apply_txpower(ah, chan, false);
 789
 790         if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 791                 if (REG_READ_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_0,
 792                                    AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL))
 793                         ah->enabled_cals |= TX_IQ_CAL;
 794                 else
 795                         ah->enabled_cals &= ~TX_IQ_CAL;
 796
 797                 if (REG_READ(ah, AR_PHY_CL_CAL_CTL) & AR_PHY_CL_CAL_ENABLE)
 798                         ah->enabled_cals |= TX_CL_CAL;
 799                 else
 800                         ah->enabled_cals &= ~TX_CL_CAL;
 801         }
 802
 803         return 0;
 804 }
 805
 806 static void ar9003_hw_set_rfmode(struct ath_hw *ah,
 807                                  struct ath9k_channel *chan)
 808 {
 809         u32 rfMode = 0;
 810
 811         if (chan == NULL)
 812                 return;
 813
 814         rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
 815                 ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
 816
 817         if (IS_CHAN_A_FAST_CLOCK(ah, chan))
 818                 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
 819         if (IS_CHAN_QUARTER_RATE(chan))
 820                 rfMode |= AR_PHY_MODE_QUARTER;
 821         if (IS_CHAN_HALF_RATE(chan))
 822                 rfMode |= AR_PHY_MODE_HALF;
 823
 824         if (rfMode & (AR_PHY_MODE_QUARTER | AR_PHY_MODE_HALF))
 825                 REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL,
 826                               AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW, 3);
 827
 828         REG_WRITE(ah, AR_PHY_MODE, rfMode);
 829 }
 830
 831 static void ar9003_hw_mark_phy_inactive(struct ath_hw *ah)
 832 {
 833         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
 834 }
 835
 836 static void ar9003_hw_set_delta_slope(struct ath_hw *ah,
 837                                       struct ath9k_channel *chan)
 838 {
 839         u32 coef_scaled, ds_coef_exp, ds_coef_man;
 840         u32 clockMhzScaled = 0x64000000;
 841         struct chan_centers centers;
 842
 843         /*
 844          * half and quarter rate can divide the scaled clock by 2 or 4
 845          * scale for selected channel bandwidth
 846          */
 847         if (IS_CHAN_HALF_RATE(chan))
 848                 clockMhzScaled = clockMhzScaled >> 1;
 849         else if (IS_CHAN_QUARTER_RATE(chan))
 850                 clockMhzScaled = clockMhzScaled >> 2;
 851
 852         /*
 853          * ALGO -> coef = 1e8/fcarrier*fclock/40;
 854          * scaled coef to provide precision for this floating calculation
 855          */
 856         ath9k_hw_get_channel_centers(ah, chan, &centers);
 857         coef_scaled = clockMhzScaled / centers.synth_center;
 858
 859         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
 860                                       &ds_coef_exp);
 861
 862         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
 863                       AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
 864         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
 865                       AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
 866
 867         /*
 868          * For Short GI,
 869          * scaled coeff is 9/10 that of normal coeff
 870          */
 871         coef_scaled = (9 * coef_scaled) / 10;
 872
 873         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
 874                                       &ds_coef_exp);
 875
 876         /* for short gi */
 877         REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
 878                       AR_PHY_SGI_DSC_MAN, ds_coef_man);
 879         REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
 880                       AR_PHY_SGI_DSC_EXP, ds_coef_exp);
 881 }
 882
 883 static bool ar9003_hw_rfbus_req(struct ath_hw *ah)
 884 {
 885         REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
 886         return ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
 887                              AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT);
 888 }
 889
 890 /*
 891  * Wait for the frequency synth to settle (synth goes on via PHY_ACTIVE_EN).
 892  * Read the phy active delay register. Value is in 100ns increments.
 893  */
 894 static void ar9003_hw_rfbus_done(struct ath_hw *ah)
 895 {
 896         u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
 897
 898         ath9k_hw_synth_delay(ah, ah->curchan, synthDelay);
 899
 900         REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
 901 }
 902
 903 static bool ar9003_hw_ani_control(struct ath_hw *ah,
 904                                   enum ath9k_ani_cmd cmd, int param)
 905 {
 906         struct ath_common *common = ath9k_hw_common(ah);
 907         struct ath9k_channel *chan = ah->curchan;
 908         struct ar5416AniState *aniState = &chan->ani;
 909         s32 value, value2;
 910
 911         switch (cmd & ah->ani_function) {
 912         case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{
 913                 /*
 914                  * on == 1 means ofdm weak signal detection is ON
 915                  * on == 1 is the default, for less noise immunity
 916                  *
 917                  * on == 0 means ofdm weak signal detection is OFF
 918                  * on == 0 means more noise imm
 919                  */
 920                 u32 on = param ? 1 : 0;
 921
 922                 if (on)
 923                         REG_SET_BIT(ah, AR_PHY_SFCORR_LOW,
 924                                     AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
 925                 else
 926                         REG_CLR_BIT(ah, AR_PHY_SFCORR_LOW,
 927                                     AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
 928
 929                 if (on != aniState->ofdmWeakSigDetect) {
 930                         ath_dbg(common, ANI,
 931                                 "** ch %d: ofdm weak signal: %s=>%s\n",
 932                                 chan->channel,
 933                                 aniState->ofdmWeakSigDetect ?
 934                                 "on" : "off",
 935                                 on ? "on" : "off");
 936                         if (on)
 937                                 ah->stats.ast_ani_ofdmon++;
 938                         else
 939                                 ah->stats.ast_ani_ofdmoff++;
 940                         aniState->ofdmWeakSigDetect = on;
 941                 }
 942                 break;
 943         }
 944         case ATH9K_ANI_FIRSTEP_LEVEL:{
 945                 u32 level = param;
 946
 947                 if (level >= ARRAY_SIZE(firstep_table)) {
 948                         ath_dbg(common, ANI,
 949                                 "ATH9K_ANI_FIRSTEP_LEVEL: level out of range (%u > %zu)\n",
 950                                 level, ARRAY_SIZE(firstep_table));
 951                         return false;
 952                 }
 953
 954                 /*
 955                  * make register setting relative to default
 956                  * from INI file & cap value
 957                  */
 958                 value = firstep_table[level] -
 959                         firstep_table[ATH9K_ANI_FIRSTEP_LVL] +
 960                         aniState->iniDef.firstep;
 961                 if (value < ATH9K_SIG_FIRSTEP_SETTING_MIN)
 962                         value = ATH9K_SIG_FIRSTEP_SETTING_MIN;
 963                 if (value > ATH9K_SIG_FIRSTEP_SETTING_MAX)
 964                         value = ATH9K_SIG_FIRSTEP_SETTING_MAX;
 965                 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
 966                               AR_PHY_FIND_SIG_FIRSTEP,
 967                               value);
 968                 /*
 969                  * we need to set first step low register too
 970                  * make register setting relative to default
 971                  * from INI file & cap value
 972                  */
 973                 value2 = firstep_table[level] -
 974                          firstep_table[ATH9K_ANI_FIRSTEP_LVL] +
 975                          aniState->iniDef.firstepLow;
 976                 if (value2 < ATH9K_SIG_FIRSTEP_SETTING_MIN)
 977                         value2 = ATH9K_SIG_FIRSTEP_SETTING_MIN;
 978                 if (value2 > ATH9K_SIG_FIRSTEP_SETTING_MAX)
 979                         value2 = ATH9K_SIG_FIRSTEP_SETTING_MAX;
 980
 981                 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW,
 982                               AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW, value2);
 983
 984                 if (level != aniState->firstepLevel) {
 985                         ath_dbg(common, ANI,
 986                                 "** ch %d: level %d=>%d[def:%d] firstep[level]=%d ini=%d\n",
 987                                 chan->channel,
 988                                 aniState->firstepLevel,
 989                                 level,
 990                                 ATH9K_ANI_FIRSTEP_LVL,
 991                                 value,
 992                                 aniState->iniDef.firstep);
 993                         ath_dbg(common, ANI,
 994                                 "** ch %d: level %d=>%d[def:%d] firstep_low[level]=%d ini=%d\n",
 995                                 chan->channel,
 996                                 aniState->firstepLevel,
 997                                 level,
 998                                 ATH9K_ANI_FIRSTEP_LVL,
 999                                 value2,
1000                                 aniState->iniDef.firstepLow);
1001                         if (level > aniState->firstepLevel)
1002                                 ah->stats.ast_ani_stepup++;
1003                         else if (level < aniState->firstepLevel)
1004                                 ah->stats.ast_ani_stepdown++;
1005                         aniState->firstepLevel = level;
1006                 }
1007                 break;
1008         }
1009         case ATH9K_ANI_SPUR_IMMUNITY_LEVEL:{
1010                 u32 level = param;
1011
1012                 if (level >= ARRAY_SIZE(cycpwrThr1_table)) {
1013                         ath_dbg(common, ANI,
1014                                 "ATH9K_ANI_SPUR_IMMUNITY_LEVEL: level out of range (%u > %zu)\n",
1015                                 level, ARRAY_SIZE(cycpwrThr1_table));
1016                         return false;
1017                 }
1018                 /*
1019                  * make register setting relative to default
1020                  * from INI file & cap value
1021                  */
1022                 value = cycpwrThr1_table[level] -
1023                         cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL] +
1024                         aniState->iniDef.cycpwrThr1;
1025                 if (value < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
1026                         value = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
1027                 if (value > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
1028                         value = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
1029                 REG_RMW_FIELD(ah, AR_PHY_TIMING5,
1030                               AR_PHY_TIMING5_CYCPWR_THR1,
1031                               value);
1032
1033                 /*
1034                  * set AR_PHY_EXT_CCA for extension channel
1035                  * make register setting relative to default
1036                  * from INI file & cap value
1037                  */
1038                 value2 = cycpwrThr1_table[level] -
1039                          cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL] +
1040                          aniState->iniDef.cycpwrThr1Ext;
1041                 if (value2 < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
1042                         value2 = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
1043                 if (value2 > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
1044                         value2 = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
1045                 REG_RMW_FIELD(ah, AR_PHY_EXT_CCA,
1046                               AR_PHY_EXT_CYCPWR_THR1, value2);
1047
1048                 if (level != aniState->spurImmunityLevel) {
1049                         ath_dbg(common, ANI,
1050                                 "** ch %d: level %d=>%d[def:%d] cycpwrThr1[level]=%d ini=%d\n",
1051                                 chan->channel,
1052                                 aniState->spurImmunityLevel,
1053                                 level,
1054                                 ATH9K_ANI_SPUR_IMMUNE_LVL,
1055                                 value,
1056                                 aniState->iniDef.cycpwrThr1);
1057                         ath_dbg(common, ANI,
1058                                 "** ch %d: level %d=>%d[def:%d] cycpwrThr1Ext[level]=%d ini=%d\n",
1059                                 chan->channel,
1060                                 aniState->spurImmunityLevel,
1061                                 level,
1062                                 ATH9K_ANI_SPUR_IMMUNE_LVL,
1063                                 value2,
1064                                 aniState->iniDef.cycpwrThr1Ext);
1065                         if (level > aniState->spurImmunityLevel)
1066                                 ah->stats.ast_ani_spurup++;
1067                         else if (level < aniState->spurImmunityLevel)
1068                                 ah->stats.ast_ani_spurdown++;
1069                         aniState->spurImmunityLevel = level;
1070                 }
1071                 break;
1072         }
1073         case ATH9K_ANI_MRC_CCK:{
1074                 /*
1075                  * is_on == 1 means MRC CCK ON (default, less noise imm)
1076                  * is_on == 0 means MRC CCK is OFF (more noise imm)
1077                  */
1078                 bool is_on = param ? 1 : 0;
1079                 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
1080                               AR_PHY_MRC_CCK_ENABLE, is_on);
1081                 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
1082                               AR_PHY_MRC_CCK_MUX_REG, is_on);
1083                 if (is_on != aniState->mrcCCK) {
1084                         ath_dbg(common, ANI, "** ch %d: MRC CCK: %s=>%s\n",
1085                                 chan->channel,
1086                                 aniState->mrcCCK ? "on" : "off",
1087                                 is_on ? "on" : "off");
1088                 if (is_on)
1089                         ah->stats.ast_ani_ccklow++;
1090                 else
1091                         ah->stats.ast_ani_cckhigh++;
1092                 aniState->mrcCCK = is_on;
1093                 }
1094         break;
1095         }
1096         case ATH9K_ANI_PRESENT:
1097                 break;
1098         default:
1099                 ath_dbg(common, ANI, "invalid cmd %u\n", cmd);
1100                 return false;
1101         }
1102
1103         ath_dbg(common, ANI,
1104                 "ANI parameters: SI=%d, ofdmWS=%s FS=%d MRCcck=%s listenTime=%d ofdmErrs=%d cckErrs=%d\n",
1105                 aniState->spurImmunityLevel,
1106                 aniState->ofdmWeakSigDetect ? "on" : "off",
1107                 aniState->firstepLevel,
1108                 aniState->mrcCCK ? "on" : "off",
1109                 aniState->listenTime,
1110                 aniState->ofdmPhyErrCount,
1111                 aniState->cckPhyErrCount);
1112         return true;
1113 }
1114
1115 static void ar9003_hw_do_getnf(struct ath_hw *ah,
1116                               int16_t nfarray[NUM_NF_READINGS])
1117 {
1118 #define AR_PHY_CH_MINCCA_PWR    0x1FF00000
1119 #define AR_PHY_CH_MINCCA_PWR_S  20
1120 #define AR_PHY_CH_EXT_MINCCA_PWR 0x01FF0000
1121 #define AR_PHY_CH_EXT_MINCCA_PWR_S 16
1122
1123         int16_t nf;
1124         int i;
1125
1126         for (i = 0; i < AR9300_MAX_CHAINS; i++) {
1127                 if (ah->rxchainmask & BIT(i)) {
1128                         nf = MS(REG_READ(ah, ah->nf_regs[i]),
1129                                          AR_PHY_CH_MINCCA_PWR);
1130                         nfarray[i] = sign_extend32(nf, 8);
1131
1132                         if (IS_CHAN_HT40(ah->curchan)) {
1133                                 u8 ext_idx = AR9300_MAX_CHAINS + i;
1134
1135                                 nf = MS(REG_READ(ah, ah->nf_regs[ext_idx]),
1136                                                  AR_PHY_CH_EXT_MINCCA_PWR);
1137                                 nfarray[ext_idx] = sign_extend32(nf, 8);
1138                         }
1139                 }
1140         }
1141 }
1142
1143 static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
1144 {
1145         ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
1146         ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
1147         ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
1148         ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
1149         ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
1150         ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9300_5GHZ;
1151
1152         if (AR_SREV_9330(ah))
1153                 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9330_2GHZ;
1154
1155         if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
1156                 ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_2GHZ;
1157                 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9462_2GHZ;
1158                 ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_5GHZ;
1159                 ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9462_5GHZ;
1160         }
1161 }
1162
1163 /*
1164  * Initialize the ANI register values with default (ini) values.
1165  * This routine is called during a (full) hardware reset after
1166  * all the registers are initialised from the INI.
1167  */
1168 static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah)
1169 {
1170         struct ar5416AniState *aniState;
1171         struct ath_common *common = ath9k_hw_common(ah);
1172         struct ath9k_channel *chan = ah->curchan;
1173         struct ath9k_ani_default *iniDef;
1174         u32 val;
1175
1176         aniState = &ah->curchan->ani;
1177         iniDef = &aniState->iniDef;
1178
1179         ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz/0x%x\n",
1180                 ah->hw_version.macVersion,
1181                 ah->hw_version.macRev,
1182                 ah->opmode,
1183                 chan->channel,
1184                 chan->channelFlags);
1185
1186         val = REG_READ(ah, AR_PHY_SFCORR);
1187         iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH);
1188         iniDef->m2Thresh = MS(val, AR_PHY_SFCORR_M2_THRESH);
1189         iniDef->m2CountThr = MS(val, AR_PHY_SFCORR_M2COUNT_THR);
1190
1191         val = REG_READ(ah, AR_PHY_SFCORR_LOW);
1192         iniDef->m1ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M1_THRESH_LOW);
1193         iniDef->m2ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M2_THRESH_LOW);
1194         iniDef->m2CountThrLow = MS(val, AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW);
1195
1196         val = REG_READ(ah, AR_PHY_SFCORR_EXT);
1197         iniDef->m1ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH);
1198         iniDef->m2ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH);
1199         iniDef->m1ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH_LOW);
1200         iniDef->m2ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH_LOW);
1201         iniDef->firstep = REG_READ_FIELD(ah,
1202                                          AR_PHY_FIND_SIG,
1203                                          AR_PHY_FIND_SIG_FIRSTEP);
1204         iniDef->firstepLow = REG_READ_FIELD(ah,
1205                                             AR_PHY_FIND_SIG_LOW,
1206                                             AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW);
1207         iniDef->cycpwrThr1 = REG_READ_FIELD(ah,
1208                                             AR_PHY_TIMING5,
1209                                             AR_PHY_TIMING5_CYCPWR_THR1);
1210         iniDef->cycpwrThr1Ext = REG_READ_FIELD(ah,
1211                                                AR_PHY_EXT_CCA,
1212                                                AR_PHY_EXT_CYCPWR_THR1);
1213
1214         /* these levels just got reset to defaults by the INI */
1215         aniState->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL;
1216         aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL;
1217         aniState->ofdmWeakSigDetect = ATH9K_ANI_USE_OFDM_WEAK_SIG;
1218         aniState->mrcCCK = true;
1219 }
1220
1221 static void ar9003_hw_set_radar_params(struct ath_hw *ah,
1222                                        struct ath_hw_radar_conf *conf)
1223 {
1224         u32 radar_0 = 0, radar_1 = 0;
1225
1226         if (!conf) {
1227                 REG_CLR_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_ENA);
1228                 return;
1229         }
1230
1231         radar_0 |= AR_PHY_RADAR_0_ENA | AR_PHY_RADAR_0_FFT_ENA;
1232         radar_0 |= SM(conf->fir_power, AR_PHY_RADAR_0_FIRPWR);
1233         radar_0 |= SM(conf->radar_rssi, AR_PHY_RADAR_0_RRSSI);
1234         radar_0 |= SM(conf->pulse_height, AR_PHY_RADAR_0_HEIGHT);
1235         radar_0 |= SM(conf->pulse_rssi, AR_PHY_RADAR_0_PRSSI);
1236         radar_0 |= SM(conf->pulse_inband, AR_PHY_RADAR_0_INBAND);
1237
1238         radar_1 |= AR_PHY_RADAR_1_MAX_RRSSI;
1239         radar_1 |= AR_PHY_RADAR_1_BLOCK_CHECK;
1240         radar_1 |= SM(conf->pulse_maxlen, AR_PHY_RADAR_1_MAXLEN);
1241         radar_1 |= SM(conf->pulse_inband_step, AR_PHY_RADAR_1_RELSTEP_THRESH);
1242         radar_1 |= SM(conf->radar_inband, AR_PHY_RADAR_1_RELPWR_THRESH);
1243
1244         REG_WRITE(ah, AR_PHY_RADAR_0, radar_0);
1245         REG_WRITE(ah, AR_PHY_RADAR_1, radar_1);
1246         if (conf->ext_channel)
1247                 REG_SET_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA);
1248         else
1249                 REG_CLR_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA);
1250 }
1251
1252 static void ar9003_hw_set_radar_conf(struct ath_hw *ah)
1253 {
1254         struct ath_hw_radar_conf *conf = &ah->radar_conf;
1255
1256         conf->fir_power = -28;
1257         conf->radar_rssi = 0;
1258         conf->pulse_height = 10;
1259         conf->pulse_rssi = 24;
1260         conf->pulse_inband = 8;
1261         conf->pulse_maxlen = 255;
1262         conf->pulse_inband_step = 12;
1263         conf->radar_inband = 8;
1264 }
1265
1266 static void ar9003_hw_antdiv_comb_conf_get(struct ath_hw *ah,
1267                                            struct ath_hw_antcomb_conf *antconf)
1268 {
1269         u32 regval;
1270
1271         regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1272         antconf->main_lna_conf = (regval & AR_PHY_ANT_DIV_MAIN_LNACONF) >>
1273                                   AR_PHY_ANT_DIV_MAIN_LNACONF_S;
1274         antconf->alt_lna_conf = (regval & AR_PHY_ANT_DIV_ALT_LNACONF) >>
1275                                  AR_PHY_ANT_DIV_ALT_LNACONF_S;
1276         antconf->fast_div_bias = (regval & AR_PHY_ANT_FAST_DIV_BIAS) >>
1277                                   AR_PHY_ANT_FAST_DIV_BIAS_S;
1278
1279         if (AR_SREV_9330_11(ah)) {
1280                 antconf->lna1_lna2_delta = -9;
1281                 antconf->div_group = 1;
1282         } else if (AR_SREV_9485(ah)) {
1283                 antconf->lna1_lna2_delta = -9;
1284                 antconf->div_group = 2;
1285         } else if (AR_SREV_9565(ah)) {
1286                 antconf->lna1_lna2_delta = -3;
1287                 antconf->div_group = 3;
1288         } else {
1289                 antconf->lna1_lna2_delta = -3;
1290                 antconf->div_group = 0;
1291         }
1292 }
1293
1294 static void ar9003_hw_antdiv_comb_conf_set(struct ath_hw *ah,
1295                                    struct ath_hw_antcomb_conf *antconf)
1296 {
1297         u32 regval;
1298
1299         regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1300         regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF |
1301                     AR_PHY_ANT_DIV_ALT_LNACONF |
1302                     AR_PHY_ANT_FAST_DIV_BIAS |
1303                     AR_PHY_ANT_DIV_MAIN_GAINTB |
1304                     AR_PHY_ANT_DIV_ALT_GAINTB);
1305         regval |= ((antconf->main_lna_conf << AR_PHY_ANT_DIV_MAIN_LNACONF_S)
1306                    & AR_PHY_ANT_DIV_MAIN_LNACONF);
1307         regval |= ((antconf->alt_lna_conf << AR_PHY_ANT_DIV_ALT_LNACONF_S)
1308                    & AR_PHY_ANT_DIV_ALT_LNACONF);
1309         regval |= ((antconf->fast_div_bias << AR_PHY_ANT_FAST_DIV_BIAS_S)
1310                    & AR_PHY_ANT_FAST_DIV_BIAS);
1311         regval |= ((antconf->main_gaintb << AR_PHY_ANT_DIV_MAIN_GAINTB_S)
1312                    & AR_PHY_ANT_DIV_MAIN_GAINTB);
1313         regval |= ((antconf->alt_gaintb << AR_PHY_ANT_DIV_ALT_GAINTB_S)
1314                    & AR_PHY_ANT_DIV_ALT_GAINTB);
1315
1316         REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
1317 }
1318
1319 static void ar9003_hw_antctrl_shared_chain_lnadiv(struct ath_hw *ah,
1320                                                   bool enable)
1321 {
1322         u8 ant_div_ctl1;
1323         u32 regval;
1324
1325         if (!AR_SREV_9565(ah))
1326                 return;
1327
1328         ah->shared_chain_lnadiv = enable;
1329         ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
1330
1331         regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1332         regval &= (~AR_ANT_DIV_CTRL_ALL);
1333         regval |= (ant_div_ctl1 & 0x3f) << AR_ANT_DIV_CTRL_ALL_S;
1334         regval &= ~AR_PHY_ANT_DIV_LNADIV;
1335         regval |= ((ant_div_ctl1 >> 6) & 0x1) << AR_PHY_ANT_DIV_LNADIV_S;
1336
1337         if (enable)
1338                 regval |= AR_ANT_DIV_ENABLE;
1339
1340         REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
1341
1342         regval = REG_READ(ah, AR_PHY_CCK_DETECT);
1343         regval &= ~AR_FAST_DIV_ENABLE;
1344         regval |= ((ant_div_ctl1 >> 7) & 0x1) << AR_FAST_DIV_ENABLE_S;
1345
1346         if (enable)
1347                 regval |= AR_FAST_DIV_ENABLE;
1348
1349         REG_WRITE(ah, AR_PHY_CCK_DETECT, regval);
1350
1351         if (enable) {
1352                 REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL,
1353                             (1 << AR_PHY_ANT_SW_RX_PROT_S));
1354                 if (ah->curchan && IS_CHAN_2GHZ(ah->curchan))
1355                         REG_SET_BIT(ah, AR_PHY_RESTART,
1356                                     AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
1357                 REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV,
1358                             AR_BTCOEX_WL_LNADIV_FORCE_ON);
1359         } else {
1360                 REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL, AR_ANT_DIV_ENABLE);
1361                 REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL,
1362                             (1 << AR_PHY_ANT_SW_RX_PROT_S));
1363                 REG_CLR_BIT(ah, AR_PHY_CCK_DETECT, AR_FAST_DIV_ENABLE);
1364                 REG_CLR_BIT(ah, AR_BTCOEX_WL_LNADIV,
1365                             AR_BTCOEX_WL_LNADIV_FORCE_ON);
1366
1367                 regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1368                 regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF |
1369                         AR_PHY_ANT_DIV_ALT_LNACONF |
1370                         AR_PHY_ANT_DIV_MAIN_GAINTB |
1371                         AR_PHY_ANT_DIV_ALT_GAINTB);
1372                 regval |= (AR_PHY_ANT_DIV_LNA1 << AR_PHY_ANT_DIV_MAIN_LNACONF_S);
1373                 regval |= (AR_PHY_ANT_DIV_LNA2 << AR_PHY_ANT_DIV_ALT_LNACONF_S);
1374                 REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
1375         }
1376 }
1377
1378 static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
1379                                       struct ath9k_channel *chan,
1380                                       u8 *ini_reloaded)
1381 {
1382         unsigned int regWrites = 0;
1383         u32 modesIndex;
1384
1385         switch (chan->chanmode) {
1386         case CHANNEL_A:
1387         case CHANNEL_A_HT20:
1388                 modesIndex = 1;
1389                 break;
1390         case CHANNEL_A_HT40PLUS:
1391         case CHANNEL_A_HT40MINUS:
1392                 modesIndex = 2;
1393                 break;
1394         case CHANNEL_G:
1395         case CHANNEL_G_HT20:
1396         case CHANNEL_B:
1397                 modesIndex = 4;
1398                 break;
1399         case CHANNEL_G_HT40PLUS:
1400         case CHANNEL_G_HT40MINUS:
1401                 modesIndex = 3;
1402                 break;
1403
1404         default:
1405                 return -EINVAL;
1406         }
1407
1408         if (modesIndex == ah->modes_index) {
1409                 *ini_reloaded = false;
1410                 goto set_rfmode;
1411         }
1412
1413         ar9003_hw_prog_ini(ah, &ah->iniSOC[ATH_INI_POST], modesIndex);
1414         ar9003_hw_prog_ini(ah, &ah->iniMac[ATH_INI_POST], modesIndex);
1415         ar9003_hw_prog_ini(ah, &ah->iniBB[ATH_INI_POST], modesIndex);
1416         ar9003_hw_prog_ini(ah, &ah->iniRadio[ATH_INI_POST], modesIndex);
1417
1418         if (AR_SREV_9462_20(ah))
1419                 ar9003_hw_prog_ini(ah, &ah->ini_radio_post_sys2ant,
1420                                    modesIndex);
1421
1422         REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
1423
1424         /*
1425          * For 5GHz channels requiring Fast Clock, apply
1426          * different modal values.
1427          */
1428         if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1429                 REG_WRITE_ARRAY(&ah->iniModesFastClock, modesIndex, regWrites);
1430
1431         if (AR_SREV_9565(ah))
1432                 REG_WRITE_ARRAY(&ah->iniModesFastClock, 1, regWrites);
1433
1434         REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites);
1435
1436         ah->modes_index = modesIndex;
1437         *ini_reloaded = true;
1438
1439 set_rfmode:
1440         ar9003_hw_set_rfmode(ah, chan);
1441         return 0;
1442 }
1443
1444 static void ar9003_hw_spectral_scan_config(struct ath_hw *ah,
1445                                            struct ath_spec_scan *param)
1446 {
1447         u8 count;
1448
1449         if (!param->enabled) {
1450                 REG_CLR_BIT(ah, AR_PHY_SPECTRAL_SCAN,
1451                             AR_PHY_SPECTRAL_SCAN_ENABLE);
1452                 return;
1453         }
1454
1455         REG_SET_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_FFT_ENA);
1456         REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN, AR_PHY_SPECTRAL_SCAN_ENABLE);
1457
1458         /* on AR93xx and newer, count = 0 will make the the chip send
1459          * spectral samples endlessly. Check if this really was intended,
1460          * and fix otherwise.
1461          */
1462         count = param->count;
1463         if (param->endless)
1464                 count = 0;
1465         else if (param->count == 0)
1466                 count = 1;
1467
1468         if (param->short_repeat)
1469                 REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN,
1470                             AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT);
1471         else
1472                 REG_CLR_BIT(ah, AR_PHY_SPECTRAL_SCAN,
1473                             AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT);
1474
1475         REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN,
1476                       AR_PHY_SPECTRAL_SCAN_COUNT, count);
1477         REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN,
1478                       AR_PHY_SPECTRAL_SCAN_PERIOD, param->period);
1479         REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN,
1480                       AR_PHY_SPECTRAL_SCAN_FFT_PERIOD, param->fft_period);
1481
1482         return;
1483 }
1484
1485 static void ar9003_hw_spectral_scan_trigger(struct ath_hw *ah)
1486 {
1487         /* Activate spectral scan */
1488         REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN,
1489                     AR_PHY_SPECTRAL_SCAN_ACTIVE);
1490 }
1491
1492 static void ar9003_hw_spectral_scan_wait(struct ath_hw *ah)
1493 {
1494         struct ath_common *common = ath9k_hw_common(ah);
1495
1496         /* Poll for spectral scan complete */
1497         if (!ath9k_hw_wait(ah, AR_PHY_SPECTRAL_SCAN,
1498                            AR_PHY_SPECTRAL_SCAN_ACTIVE,
1499                            0, AH_WAIT_TIMEOUT)) {
1500                 ath_err(common, "spectral scan wait failed\n");
1501                 return;
1502         }
1503 }
1504
1505 void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
1506 {
1507         struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
1508         struct ath_hw_ops *ops = ath9k_hw_ops(ah);
1509         static const u32 ar9300_cca_regs[6] = {
1510                 AR_PHY_CCA_0,
1511                 AR_PHY_CCA_1,
1512                 AR_PHY_CCA_2,
1513                 AR_PHY_EXT_CCA,
1514                 AR_PHY_EXT_CCA_1,
1515                 AR_PHY_EXT_CCA_2,
1516         };
1517
1518         priv_ops->rf_set_freq = ar9003_hw_set_channel;
1519         priv_ops->spur_mitigate_freq = ar9003_hw_spur_mitigate;
1520         priv_ops->compute_pll_control = ar9003_hw_compute_pll_control;
1521         priv_ops->set_channel_regs = ar9003_hw_set_channel_regs;
1522         priv_ops->init_bb = ar9003_hw_init_bb;
1523         priv_ops->process_ini = ar9003_hw_process_ini;
1524         priv_ops->set_rfmode = ar9003_hw_set_rfmode;
1525         priv_ops->mark_phy_inactive = ar9003_hw_mark_phy_inactive;
1526         priv_ops->set_delta_slope = ar9003_hw_set_delta_slope;
1527         priv_ops->rfbus_req = ar9003_hw_rfbus_req;
1528         priv_ops->rfbus_done = ar9003_hw_rfbus_done;
1529         priv_ops->ani_control = ar9003_hw_ani_control;
1530         priv_ops->do_getnf = ar9003_hw_do_getnf;
1531         priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs;
1532         priv_ops->set_radar_params = ar9003_hw_set_radar_params;
1533         priv_ops->fast_chan_change = ar9003_hw_fast_chan_change;
1534
1535         ops->antdiv_comb_conf_get = ar9003_hw_antdiv_comb_conf_get;
1536         ops->antdiv_comb_conf_set = ar9003_hw_antdiv_comb_conf_set;
1537         ops->antctrl_shared_chain_lnadiv = ar9003_hw_antctrl_shared_chain_lnadiv;
1538         ops->spectral_scan_config = ar9003_hw_spectral_scan_config;
1539         ops->spectral_scan_trigger = ar9003_hw_spectral_scan_trigger;
1540         ops->spectral_scan_wait = ar9003_hw_spectral_scan_wait;
1541
1542         ar9003_hw_set_nf_limits(ah);
1543         ar9003_hw_set_radar_conf(ah);
1544         memcpy(ah->nf_regs, ar9300_cca_regs, sizeof(ah->nf_regs));
1545 }
1546
1547 void ar9003_hw_bb_watchdog_config(struct ath_hw *ah)
1548 {
1549         struct ath_common *common = ath9k_hw_common(ah);
1550         u32 idle_tmo_ms = ah->bb_watchdog_timeout_ms;
1551         u32 val, idle_count;
1552
1553         if (!idle_tmo_ms) {
1554                 /* disable IRQ, disable chip-reset for BB panic */
1555                 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
1556                           REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) &
1557                           ~(AR_PHY_WATCHDOG_RST_ENABLE |
1558                             AR_PHY_WATCHDOG_IRQ_ENABLE));
1559
1560                 /* disable watchdog in non-IDLE mode, disable in IDLE mode */
1561                 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
1562                           REG_READ(ah, AR_PHY_WATCHDOG_CTL_1) &
1563                           ~(AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
1564                             AR_PHY_WATCHDOG_IDLE_ENABLE));
1565
1566                 ath_dbg(common, RESET, "Disabled BB Watchdog\n");
1567                 return;
1568         }
1569
1570         /* enable IRQ, disable chip-reset for BB watchdog */
1571         val = REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) & AR_PHY_WATCHDOG_CNTL2_MASK;
1572         REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
1573                   (val | AR_PHY_WATCHDOG_IRQ_ENABLE) &
1574                   ~AR_PHY_WATCHDOG_RST_ENABLE);
1575
1576         /* bound limit to 10 secs */
1577         if (idle_tmo_ms > 10000)
1578                 idle_tmo_ms = 10000;
1579
1580         /*
1581          * The time unit for watchdog event is 2^15 44/88MHz cycles.
1582          *
1583          * For HT20 we have a time unit of 2^15/44 MHz = .74 ms per tick
1584          * For HT40 we have a time unit of 2^15/88 MHz = .37 ms per tick
1585          *
1586          * Given we use fast clock now in 5 GHz, these time units should
1587          * be common for both 2 GHz and 5 GHz.
1588          */
1589         idle_count = (100 * idle_tmo_ms) / 74;
1590         if (ah->curchan && IS_CHAN_HT40(ah->curchan))
1591                 idle_count = (100 * idle_tmo_ms) / 37;
1592
1593         /*
1594          * enable watchdog in non-IDLE mode, disable in IDLE mode,
1595          * set idle time-out.
1596          */
1597         REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
1598                   AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
1599                   AR_PHY_WATCHDOG_IDLE_MASK |
1600                   (AR_PHY_WATCHDOG_NON_IDLE_MASK & (idle_count << 2)));
1601
1602         ath_dbg(common, RESET, "Enabled BB Watchdog timeout (%u ms)\n",
1603                 idle_tmo_ms);
1604 }
1605
1606 void ar9003_hw_bb_watchdog_read(struct ath_hw *ah)
1607 {
1608         /*
1609          * we want to avoid printing in ISR context so we save the
1610          * watchdog status to be printed later in bottom half context.
1611          */
1612         ah->bb_watchdog_last_status = REG_READ(ah, AR_PHY_WATCHDOG_STATUS);
1613
1614         /*
1615          * the watchdog timer should reset on status read but to be sure
1616          * sure we write 0 to the watchdog status bit.
1617          */
1618         REG_WRITE(ah, AR_PHY_WATCHDOG_STATUS,
1619                   ah->bb_watchdog_last_status & ~AR_PHY_WATCHDOG_STATUS_CLR);
1620 }
1621
1622 void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah)
1623 {
1624         struct ath_common *common = ath9k_hw_common(ah);
1625         u32 status;
1626
1627         if (likely(!(common->debug_mask & ATH_DBG_RESET)))
1628                 return;
1629
1630         status = ah->bb_watchdog_last_status;
1631         ath_dbg(common, RESET,
1632                 "\n==== BB update: BB status=0x%08x ====\n", status);
1633         ath_dbg(common, RESET,
1634                 "** BB state: wd=%u det=%u rdar=%u rOFDM=%d rCCK=%u tOFDM=%u tCCK=%u agc=%u src=%u **\n",
1635                 MS(status, AR_PHY_WATCHDOG_INFO),
1636                 MS(status, AR_PHY_WATCHDOG_DET_HANG),
1637                 MS(status, AR_PHY_WATCHDOG_RADAR_SM),
1638                 MS(status, AR_PHY_WATCHDOG_RX_OFDM_SM),
1639                 MS(status, AR_PHY_WATCHDOG_RX_CCK_SM),
1640                 MS(status, AR_PHY_WATCHDOG_TX_OFDM_SM),
1641                 MS(status, AR_PHY_WATCHDOG_TX_CCK_SM),
1642                 MS(status, AR_PHY_WATCHDOG_AGC_SM),
1643                 MS(status, AR_PHY_WATCHDOG_SRCH_SM));
1644
1645         ath_dbg(common, RESET, "** BB WD cntl: cntl1=0x%08x cntl2=0x%08x **\n",
1646                 REG_READ(ah, AR_PHY_WATCHDOG_CTL_1),
1647                 REG_READ(ah, AR_PHY_WATCHDOG_CTL_2));
1648         ath_dbg(common, RESET, "** BB mode: BB_gen_controls=0x%08x **\n",
1649                 REG_READ(ah, AR_PHY_GEN_CTRL));
1650
1651 #define PCT(_field) (common->cc_survey._field * 100 / common->cc_survey.cycles)
1652         if (common->cc_survey.cycles)
1653                 ath_dbg(common, RESET,
1654                         "** BB busy times: rx_clear=%d%%, rx_frame=%d%%, tx_frame=%d%% **\n",
1655                         PCT(rx_busy), PCT(rx_frame), PCT(tx_frame));
1656
1657         ath_dbg(common, RESET, "==== BB update: done ====\n\n");
1658 }
1659 EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info);
1660
1661 void ar9003_hw_disable_phy_restart(struct ath_hw *ah)
1662 {
1663         u32 val;
1664
1665         /* While receiving unsupported rate frame rx state machine
1666          * gets into a state 0xb and if phy_restart happens in that
1667          * state, BB would go hang. If RXSM is in 0xb state after
1668          * first bb panic, ensure to disable the phy_restart.
1669          */
1670         if (!((MS(ah->bb_watchdog_last_status,
1671                   AR_PHY_WATCHDOG_RX_OFDM_SM) == 0xb) ||
1672             ah->bb_hang_rx_ofdm))
1673                 return;
1674
1675         ah->bb_hang_rx_ofdm = true;
1676         val = REG_READ(ah, AR_PHY_RESTART);
1677         val &= ~AR_PHY_RESTART_ENA;
1678
1679         REG_WRITE(ah, AR_PHY_RESTART, val);
1680 }
1681 EXPORT_SYMBOL(ar9003_hw_disable_phy_restart);