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, 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                         u32 chan_frac;
  81                         u32 div;
  82
  83                         if (ah->is_clk_25mhz)
  84                                 div = 75;
  85                         else
  86                                 div = 120;
  87
  88                         channelSel = (freq * 4) / div;
  89                         chan_frac = (((freq * 4) % div) * 0x20000) / div;
  90                         channelSel = (channelSel << 17) | chan_frac;
  91                 } else if (AR_SREV_9485(ah)) {
  92                         u32 chan_frac;
  93
  94                         /*
  95                          * freq_ref = 40 / (refdiva >> amoderefsel); where refdiva=1 and amoderefsel=0
  96                          * ndiv = ((chan_mhz * 4) / 3) / freq_ref;
  97                          * chansel = int(ndiv), chanfrac = (ndiv - chansel) * 0x20000
  98                          */
  99                         channelSel = (freq * 4) / 120;
 100                         chan_frac = (((freq * 4) % 120) * 0x20000) / 120;
 101                         channelSel = (channelSel << 17) | chan_frac;
 102                 } else if (AR_SREV_9340(ah)) {
 103                         if (ah->is_clk_25mhz) {
 104                                 u32 chan_frac;
 105
 106                                 channelSel = (freq * 2) / 75;
 107                                 chan_frac = (((freq * 2) % 75) * 0x20000) / 75;
 108                                 channelSel = (channelSel << 17) | chan_frac;
 109                         } else
 110                                 channelSel = CHANSEL_2G(freq) >> 1;
 111                 } else
 112                         channelSel = CHANSEL_2G(freq);
 113                 /* Set to 2G mode */
 114                 bMode = 1;
 115         } else {
 116                 if (AR_SREV_9340(ah) && ah->is_clk_25mhz) {
 117                         u32 chan_frac;
 118
 119                         channelSel = (freq * 2) / 75;
 120                         chan_frac = (((freq * 2) % 75) * 0x20000) / 75;
 121                         channelSel = (channelSel << 17) | chan_frac;
 122                 } else {
 123                         channelSel = CHANSEL_5G(freq);
 124                         /* Doubler is ON, so, divide channelSel by 2. */
 125                         channelSel >>= 1;
 126                 }
 127                 /* Set to 5G mode */
 128                 bMode = 0;
 129         }
 130
 131         /* Enable fractional mode for all channels */
 132         fracMode = 1;
 133         aModeRefSel = 0;
 134         loadSynthChannel = 0;
 135
 136         reg32 = (bMode << 29);
 137         REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32);
 138
 139         /* Enable Long shift Select for Synthesizer */
 140         REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH4,
 141                       AR_PHY_SYNTH4_LONG_SHIFT_SELECT, 1);
 142
 143         /* Program Synth. setting */
 144         reg32 = (channelSel << 2) | (fracMode << 30) |
 145                 (aModeRefSel << 28) | (loadSynthChannel << 31);
 146         REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
 147
 148         /* Toggle Load Synth channel bit */
 149         loadSynthChannel = 1;
 150         reg32 = (channelSel << 2) | (fracMode << 30) |
 151                 (aModeRefSel << 28) | (loadSynthChannel << 31);
 152         REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
 153
 154         ah->curchan = chan;
 155         ah->curchan_rad_index = -1;
 156
 157         return 0;
 158 }
 159
 160 /**
 161  * ar9003_hw_spur_mitigate_mrc_cck - convert baseband spur frequency
 162  * @ah: atheros hardware structure
 163  * @chan:
 164  *
 165  * For single-chip solutions. Converts to baseband spur frequency given the
 166  * input channel frequency and compute register settings below.
 167  *
 168  * Spur mitigation for MRC CCK
 169  */
 170 static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
 171                                             struct ath9k_channel *chan)
 172 {
 173         static const u32 spur_freq[4] = { 2420, 2440, 2464, 2480 };
 174         int cur_bb_spur, negative = 0, cck_spur_freq;
 175         int i;
 176         int range, max_spur_cnts, synth_freq;
 177         u8 *spur_fbin_ptr = NULL;
 178
 179         /*
 180          * Need to verify range +/- 10 MHz in control channel, otherwise spur
 181          * is out-of-band and can be ignored.
 182          */
 183
 184         if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah)) {
 185                 spur_fbin_ptr = ar9003_get_spur_chan_ptr(ah,
 186                                                          IS_CHAN_2GHZ(chan));
 187                 if (spur_fbin_ptr[0] == 0) /* No spur */
 188                         return;
 189                 max_spur_cnts = 5;
 190                 if (IS_CHAN_HT40(chan)) {
 191                         range = 19;
 192                         if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 193                                            AR_PHY_GC_DYN2040_PRI_CH) == 0)
 194                                 synth_freq = chan->channel + 10;
 195                         else
 196                                 synth_freq = chan->channel - 10;
 197                 } else {
 198                         range = 10;
 199                         synth_freq = chan->channel;
 200                 }
 201         } else {
 202                 range = AR_SREV_9462(ah) ? 5 : 10;
 203                 max_spur_cnts = 4;
 204                 synth_freq = chan->channel;
 205         }
 206
 207         for (i = 0; i < max_spur_cnts; i++) {
 208                 if (AR_SREV_9462(ah) && (i == 0 || i == 3))
 209                         continue;
 210                 negative = 0;
 211                 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah))
 212                         cur_bb_spur = FBIN2FREQ(spur_fbin_ptr[i],
 213                                         IS_CHAN_2GHZ(chan)) - synth_freq;
 214                 else
 215                         cur_bb_spur = spur_freq[i] - synth_freq;
 216
 217                 if (cur_bb_spur < 0) {
 218                         negative = 1;
 219                         cur_bb_spur = -cur_bb_spur;
 220                 }
 221                 if (cur_bb_spur < range) {
 222                         cck_spur_freq = (int)((cur_bb_spur << 19) / 11);
 223
 224                         if (negative == 1)
 225                                 cck_spur_freq = -cck_spur_freq;
 226
 227                         cck_spur_freq = cck_spur_freq & 0xfffff;
 228
 229                         REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
 230                                       AR_PHY_AGC_CONTROL_YCOK_MAX, 0x7);
 231                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 232                                       AR_PHY_CCK_SPUR_MIT_SPUR_RSSI_THR, 0x7f);
 233                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 234                                       AR_PHY_CCK_SPUR_MIT_SPUR_FILTER_TYPE,
 235                                       0x2);
 236                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 237                                       AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT,
 238                                       0x1);
 239                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 240                                       AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ,
 241                                       cck_spur_freq);
 242
 243                         return;
 244                 }
 245         }
 246
 247         REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
 248                       AR_PHY_AGC_CONTROL_YCOK_MAX, 0x5);
 249         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 250                       AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT, 0x0);
 251         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 252                       AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ, 0x0);
 253 }
 254
 255 /* Clean all spur register fields */
 256 static void ar9003_hw_spur_ofdm_clear(struct ath_hw *ah)
 257 {
 258         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 259                       AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0);
 260         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 261                       AR_PHY_TIMING11_SPUR_FREQ_SD, 0);
 262         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 263                       AR_PHY_TIMING11_SPUR_DELTA_PHASE, 0);
 264         REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 265                       AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, 0);
 266         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 267                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0);
 268         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 269                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0);
 270         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 271                       AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0);
 272         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 273                       AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 0);
 274         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 275                       AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 0);
 276
 277         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 278                       AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0);
 279         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 280                       AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0);
 281         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 282                       AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0);
 283         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 284                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, 0);
 285         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 286                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, 0);
 287         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 288                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, 0);
 289         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 290                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0);
 291         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 292                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0);
 293         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 294                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0);
 295         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 296                       AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0);
 297 }
 298
 299 static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
 300                                 int freq_offset,
 301                                 int spur_freq_sd,
 302                                 int spur_delta_phase,
 303                                 int spur_subchannel_sd)
 304 {
 305         int mask_index = 0;
 306
 307         /* OFDM Spur mitigation */
 308         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 309                  AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0x1);
 310         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 311                       AR_PHY_TIMING11_SPUR_FREQ_SD, spur_freq_sd);
 312         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 313                       AR_PHY_TIMING11_SPUR_DELTA_PHASE, spur_delta_phase);
 314         REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 315                       AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, spur_subchannel_sd);
 316         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 317                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0x1);
 318         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 319                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1);
 320         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 321                       AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0x1);
 322         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 323                       AR_PHY_SPUR_REG_SPUR_RSSI_THRESH, 34);
 324         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 325                       AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1);
 326
 327         if (REG_READ_FIELD(ah, AR_PHY_MODE,
 328                            AR_PHY_MODE_DYNAMIC) == 0x1)
 329                 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 330                               AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1);
 331
 332         mask_index = (freq_offset << 4) / 5;
 333         if (mask_index < 0)
 334                 mask_index = mask_index - 1;
 335
 336         mask_index = mask_index & 0x7f;
 337
 338         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 339                       AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0x1);
 340         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 341                       AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0x1);
 342         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 343                       AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0x1);
 344         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 345                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, mask_index);
 346         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 347                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, mask_index);
 348         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 349                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, mask_index);
 350         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 351                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0xc);
 352         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 353                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0xc);
 354         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 355                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
 356         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 357                       AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0xff);
 358 }
 359
 360 static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah,
 361                                      struct ath9k_channel *chan,
 362                                      int freq_offset)
 363 {
 364         int spur_freq_sd = 0;
 365         int spur_subchannel_sd = 0;
 366         int spur_delta_phase = 0;
 367
 368         if (IS_CHAN_HT40(chan)) {
 369                 if (freq_offset < 0) {
 370                         if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 371                                            AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
 372                                 spur_subchannel_sd = 1;
 373                         else
 374                                 spur_subchannel_sd = 0;
 375
 376                         spur_freq_sd = (freq_offset << 9) / 11;
 377
 378                 } else {
 379                         if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 380                             AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
 381                                 spur_subchannel_sd = 0;
 382                         else
 383                                 spur_subchannel_sd = 1;
 384
 385                         spur_freq_sd = (freq_offset << 9) / 11;
 386
 387                 }
 388
 389                 spur_delta_phase = (freq_offset << 17) / 5;
 390
 391         } else {
 392                 spur_subchannel_sd = 0;
 393                 spur_freq_sd = (freq_offset << 9) /11;
 394                 spur_delta_phase = (freq_offset << 18) / 5;
 395         }
 396
 397         spur_freq_sd = spur_freq_sd & 0x3ff;
 398         spur_delta_phase = spur_delta_phase & 0xfffff;
 399
 400         ar9003_hw_spur_ofdm(ah,
 401                             freq_offset,
 402                             spur_freq_sd,
 403                             spur_delta_phase,
 404                             spur_subchannel_sd);
 405 }
 406
 407 /* Spur mitigation for OFDM */
 408 static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah,
 409                                          struct ath9k_channel *chan)
 410 {
 411         int synth_freq;
 412         int range = 10;
 413         int freq_offset = 0;
 414         int mode;
 415         u8* spurChansPtr;
 416         unsigned int i;
 417         struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
 418
 419         if (IS_CHAN_5GHZ(chan)) {
 420                 spurChansPtr = &(eep->modalHeader5G.spurChans[0]);
 421                 mode = 0;
 422         }
 423         else {
 424                 spurChansPtr = &(eep->modalHeader2G.spurChans[0]);
 425                 mode = 1;
 426         }
 427
 428         if (spurChansPtr[0] == 0)
 429                 return; /* No spur in the mode */
 430
 431         if (IS_CHAN_HT40(chan)) {
 432                 range = 19;
 433                 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 434                                    AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
 435                         synth_freq = chan->channel - 10;
 436                 else
 437                         synth_freq = chan->channel + 10;
 438         } else {
 439                 range = 10;
 440                 synth_freq = chan->channel;
 441         }
 442
 443         ar9003_hw_spur_ofdm_clear(ah);
 444
 445         for (i = 0; i < AR_EEPROM_MODAL_SPURS && spurChansPtr[i]; i++) {
 446                 freq_offset = FBIN2FREQ(spurChansPtr[i], mode) - synth_freq;
 447                 if (abs(freq_offset) < range) {
 448                         ar9003_hw_spur_ofdm_work(ah, chan, freq_offset);
 449                         break;
 450                 }
 451         }
 452 }
 453
 454 static void ar9003_hw_spur_mitigate(struct ath_hw *ah,
 455                                     struct ath9k_channel *chan)
 456 {
 457         ar9003_hw_spur_mitigate_mrc_cck(ah, chan);
 458         ar9003_hw_spur_mitigate_ofdm(ah, chan);
 459 }
 460
 461 static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
 462                                          struct ath9k_channel *chan)
 463 {
 464         u32 pll;
 465
 466         pll = SM(0x5, AR_RTC_9300_PLL_REFDIV);
 467
 468         if (chan && IS_CHAN_HALF_RATE(chan))
 469                 pll |= SM(0x1, AR_RTC_9300_PLL_CLKSEL);
 470         else if (chan && IS_CHAN_QUARTER_RATE(chan))
 471                 pll |= SM(0x2, AR_RTC_9300_PLL_CLKSEL);
 472
 473         pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);
 474
 475         return pll;
 476 }
 477
 478 static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
 479                                        struct ath9k_channel *chan)
 480 {
 481         u32 phymode;
 482         u32 enableDacFifo = 0;
 483
 484         enableDacFifo =
 485                 (REG_READ(ah, AR_PHY_GEN_CTRL) & AR_PHY_GC_ENABLE_DAC_FIFO);
 486
 487         /* Enable 11n HT, 20 MHz */
 488         phymode = AR_PHY_GC_HT_EN | AR_PHY_GC_SINGLE_HT_LTF1 |
 489                   AR_PHY_GC_SHORT_GI_40 | enableDacFifo;
 490
 491         /* Configure baseband for dynamic 20/40 operation */
 492         if (IS_CHAN_HT40(chan)) {
 493                 phymode |= AR_PHY_GC_DYN2040_EN;
 494                 /* Configure control (primary) channel at +-10MHz */
 495                 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
 496                     (chan->chanmode == CHANNEL_G_HT40PLUS))
 497                         phymode |= AR_PHY_GC_DYN2040_PRI_CH;
 498
 499         }
 500
 501         /* make sure we preserve INI settings */
 502         phymode |= REG_READ(ah, AR_PHY_GEN_CTRL);
 503         /* turn off Green Field detection for STA for now */
 504         phymode &= ~AR_PHY_GC_GF_DETECT_EN;
 505
 506         REG_WRITE(ah, AR_PHY_GEN_CTRL, phymode);
 507
 508         /* Configure MAC for 20/40 operation */
 509         ath9k_hw_set11nmac2040(ah);
 510
 511         /* global transmit timeout (25 TUs default)*/
 512         REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
 513         /* carrier sense timeout */
 514         REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
 515 }
 516
 517 static void ar9003_hw_init_bb(struct ath_hw *ah,
 518                               struct ath9k_channel *chan)
 519 {
 520         u32 synthDelay;
 521
 522         /*
 523          * Wait for the frequency synth to settle (synth goes on
 524          * via AR_PHY_ACTIVE_EN).  Read the phy active delay register.
 525          * Value is in 100ns increments.
 526          */
 527         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
 528         if (IS_CHAN_B(chan))
 529                 synthDelay = (4 * synthDelay) / 22;
 530         else
 531                 synthDelay /= 10;
 532
 533         /* Activate the PHY (includes baseband activate + synthesizer on) */
 534         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
 535
 536         /*
 537          * There is an issue if the AP starts the calibration before
 538          * the base band timeout completes.  This could result in the
 539          * rx_clear false triggering.  As a workaround we add delay an
 540          * extra BASE_ACTIVATE_DELAY usecs to ensure this condition
 541          * does not happen.
 542          */
 543         udelay(synthDelay + BASE_ACTIVATE_DELAY);
 544 }
 545
 546 static void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
 547 {
 548         switch (rx) {
 549         case 0x5:
 550                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
 551                             AR_PHY_SWAP_ALT_CHAIN);
 552         case 0x3:
 553         case 0x1:
 554         case 0x2:
 555         case 0x7:
 556                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx);
 557                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx);
 558                 break;
 559         default:
 560                 break;
 561         }
 562
 563         if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && (tx == 0x7))
 564                 REG_WRITE(ah, AR_SELFGEN_MASK, 0x3);
 565         else if (AR_SREV_9462(ah))
 566                 /* xxx only when MCI support is enabled */
 567                 REG_WRITE(ah, AR_SELFGEN_MASK, 0x3);
 568         else
 569                 REG_WRITE(ah, AR_SELFGEN_MASK, tx);
 570
 571         if (tx == 0x5) {
 572                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
 573                             AR_PHY_SWAP_ALT_CHAIN);
 574         }
 575 }
 576
 577 /*
 578  * Override INI values with chip specific configuration.
 579  */
 580 static void ar9003_hw_override_ini(struct ath_hw *ah)
 581 {
 582         u32 val;
 583
 584         /*
 585          * Set the RX_ABORT and RX_DIS and clear it only after
 586          * RXE is set for MAC. This prevents frames with
 587          * corrupted descriptor status.
 588          */
 589         REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
 590
 591         /*
 592          * For AR9280 and above, there is a new feature that allows
 593          * Multicast search based on both MAC Address and Key ID. By default,
 594          * this feature is enabled. But since the driver is not using this
 595          * feature, we switch it off; otherwise multicast search based on
 596          * MAC addr only will fail.
 597          */
 598         val = REG_READ(ah, AR_PCU_MISC_MODE2) & (~AR_ADHOC_MCAST_KEYID_ENABLE);
 599         REG_WRITE(ah, AR_PCU_MISC_MODE2,
 600                   val | AR_AGG_WEP_ENABLE_FIX | AR_AGG_WEP_ENABLE);
 601
 602         REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
 603                     AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV);
 604 }
 605
 606 static void ar9003_hw_prog_ini(struct ath_hw *ah,
 607                                struct ar5416IniArray *iniArr,
 608                                int column)
 609 {
 610         unsigned int i, regWrites = 0;
 611
 612         /* New INI format: Array may be undefined (pre, core, post arrays) */
 613         if (!iniArr->ia_array)
 614                 return;
 615
 616         /*
 617          * New INI format: Pre, core, and post arrays for a given subsystem
 618          * may be modal (> 2 columns) or non-modal (2 columns). Determine if
 619          * the array is non-modal and force the column to 1.
 620          */
 621         if (column >= iniArr->ia_columns)
 622                 column = 1;
 623
 624         for (i = 0; i < iniArr->ia_rows; i++) {
 625                 u32 reg = INI_RA(iniArr, i, 0);
 626                 u32 val = INI_RA(iniArr, i, column);
 627
 628                 REG_WRITE(ah, reg, val);
 629
 630                 DO_DELAY(regWrites);
 631         }
 632 }
 633
 634 static int ar9003_hw_process_ini(struct ath_hw *ah,
 635                                  struct ath9k_channel *chan)
 636 {
 637         unsigned int regWrites = 0, i;
 638         u32 modesIndex;
 639
 640         switch (chan->chanmode) {
 641         case CHANNEL_A:
 642         case CHANNEL_A_HT20:
 643                 modesIndex = 1;
 644                 break;
 645         case CHANNEL_A_HT40PLUS:
 646         case CHANNEL_A_HT40MINUS:
 647                 modesIndex = 2;
 648                 break;
 649         case CHANNEL_G:
 650         case CHANNEL_G_HT20:
 651         case CHANNEL_B:
 652                 modesIndex = 4;
 653                 break;
 654         case CHANNEL_G_HT40PLUS:
 655         case CHANNEL_G_HT40MINUS:
 656                 modesIndex = 3;
 657                 break;
 658
 659         default:
 660                 return -EINVAL;
 661         }
 662
 663         for (i = 0; i < ATH_INI_NUM_SPLIT; i++) {
 664                 ar9003_hw_prog_ini(ah, &ah->iniSOC[i], modesIndex);
 665                 ar9003_hw_prog_ini(ah, &ah->iniMac[i], modesIndex);
 666                 ar9003_hw_prog_ini(ah, &ah->iniBB[i], modesIndex);
 667                 ar9003_hw_prog_ini(ah, &ah->iniRadio[i], modesIndex);
 668                 if (i == ATH_INI_POST && AR_SREV_9462_20(ah))
 669                         ar9003_hw_prog_ini(ah,
 670                                            &ah->ini_radio_post_sys2ant,
 671                                            modesIndex);
 672         }
 673
 674         REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites);
 675         REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
 676
 677         /*
 678          * For 5GHz channels requiring Fast Clock, apply
 679          * different modal values.
 680          */
 681         if (IS_CHAN_A_FAST_CLOCK(ah, chan))
 682                 REG_WRITE_ARRAY(&ah->iniModesFastClock,
 683                                 modesIndex, regWrites);
 684
 685         REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites);
 686
 687         if (AR_SREV_9462(ah))
 688                 ar9003_hw_prog_ini(ah, &ah->ini_BTCOEX_MAX_TXPWR, 1);
 689
 690         if (chan->channel == 2484)
 691                 ar9003_hw_prog_ini(ah, &ah->ini_japan2484, 1);
 692
 693         ah->modes_index = modesIndex;
 694         ar9003_hw_override_ini(ah);
 695         ar9003_hw_set_channel_regs(ah, chan);
 696         ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
 697         ath9k_hw_apply_txpower(ah, chan);
 698
 699         if (AR_SREV_9462(ah)) {
 700                 if (REG_READ_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_0,
 701                                 AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL))
 702                         ah->enabled_cals |= TX_IQ_CAL;
 703                 else
 704                         ah->enabled_cals &= ~TX_IQ_CAL;
 705
 706                 if (REG_READ(ah, AR_PHY_CL_CAL_CTL) & AR_PHY_CL_CAL_ENABLE)
 707                         ah->enabled_cals |= TX_CL_CAL;
 708                 else
 709                         ah->enabled_cals &= ~TX_CL_CAL;
 710         }
 711
 712         return 0;
 713 }
 714
 715 static void ar9003_hw_set_rfmode(struct ath_hw *ah,
 716                                  struct ath9k_channel *chan)
 717 {
 718         u32 rfMode = 0;
 719
 720         if (chan == NULL)
 721                 return;
 722
 723         rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
 724                 ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
 725
 726         if (IS_CHAN_A_FAST_CLOCK(ah, chan))
 727                 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
 728
 729         REG_WRITE(ah, AR_PHY_MODE, rfMode);
 730 }
 731
 732 static void ar9003_hw_mark_phy_inactive(struct ath_hw *ah)
 733 {
 734         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
 735 }
 736
 737 static void ar9003_hw_set_delta_slope(struct ath_hw *ah,
 738                                       struct ath9k_channel *chan)
 739 {
 740         u32 coef_scaled, ds_coef_exp, ds_coef_man;
 741         u32 clockMhzScaled = 0x64000000;
 742         struct chan_centers centers;
 743
 744         /*
 745          * half and quarter rate can divide the scaled clock by 2 or 4
 746          * scale for selected channel bandwidth
 747          */
 748         if (IS_CHAN_HALF_RATE(chan))
 749                 clockMhzScaled = clockMhzScaled >> 1;
 750         else if (IS_CHAN_QUARTER_RATE(chan))
 751                 clockMhzScaled = clockMhzScaled >> 2;
 752
 753         /*
 754          * ALGO -> coef = 1e8/fcarrier*fclock/40;
 755          * scaled coef to provide precision for this floating calculation
 756          */
 757         ath9k_hw_get_channel_centers(ah, chan, &centers);
 758         coef_scaled = clockMhzScaled / centers.synth_center;
 759
 760         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
 761                                       &ds_coef_exp);
 762
 763         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
 764                       AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
 765         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
 766                       AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
 767
 768         /*
 769          * For Short GI,
 770          * scaled coeff is 9/10 that of normal coeff
 771          */
 772         coef_scaled = (9 * coef_scaled) / 10;
 773
 774         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
 775                                       &ds_coef_exp);
 776
 777         /* for short gi */
 778         REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
 779                       AR_PHY_SGI_DSC_MAN, ds_coef_man);
 780         REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
 781                       AR_PHY_SGI_DSC_EXP, ds_coef_exp);
 782 }
 783
 784 static bool ar9003_hw_rfbus_req(struct ath_hw *ah)
 785 {
 786         REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
 787         return ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
 788                              AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT);
 789 }
 790
 791 /*
 792  * Wait for the frequency synth to settle (synth goes on via PHY_ACTIVE_EN).
 793  * Read the phy active delay register. Value is in 100ns increments.
 794  */
 795 static void ar9003_hw_rfbus_done(struct ath_hw *ah)
 796 {
 797         u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
 798         if (IS_CHAN_B(ah->curchan))
 799                 synthDelay = (4 * synthDelay) / 22;
 800         else
 801                 synthDelay /= 10;
 802
 803         udelay(synthDelay + BASE_ACTIVATE_DELAY);
 804
 805         REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
 806 }
 807
 808 static bool ar9003_hw_ani_control(struct ath_hw *ah,
 809                                   enum ath9k_ani_cmd cmd, int param)
 810 {
 811         struct ath_common *common = ath9k_hw_common(ah);
 812         struct ath9k_channel *chan = ah->curchan;
 813         struct ar5416AniState *aniState = &chan->ani;
 814         s32 value, value2;
 815
 816         switch (cmd & ah->ani_function) {
 817         case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{
 818                 /*
 819                  * on == 1 means ofdm weak signal detection is ON
 820                  * on == 1 is the default, for less noise immunity
 821                  *
 822                  * on == 0 means ofdm weak signal detection is OFF
 823                  * on == 0 means more noise imm
 824                  */
 825                 u32 on = param ? 1 : 0;
 826                 /*
 827                  * make register setting for default
 828                  * (weak sig detect ON) come from INI file
 829                  */
 830                 int m1ThreshLow = on ?
 831                         aniState->iniDef.m1ThreshLow : m1ThreshLow_off;
 832                 int m2ThreshLow = on ?
 833                         aniState->iniDef.m2ThreshLow : m2ThreshLow_off;
 834                 int m1Thresh = on ?
 835                         aniState->iniDef.m1Thresh : m1Thresh_off;
 836                 int m2Thresh = on ?
 837                         aniState->iniDef.m2Thresh : m2Thresh_off;
 838                 int m2CountThr = on ?
 839                         aniState->iniDef.m2CountThr : m2CountThr_off;
 840                 int m2CountThrLow = on ?
 841                         aniState->iniDef.m2CountThrLow : m2CountThrLow_off;
 842                 int m1ThreshLowExt = on ?
 843                         aniState->iniDef.m1ThreshLowExt : m1ThreshLowExt_off;
 844                 int m2ThreshLowExt = on ?
 845                         aniState->iniDef.m2ThreshLowExt : m2ThreshLowExt_off;
 846                 int m1ThreshExt = on ?
 847                         aniState->iniDef.m1ThreshExt : m1ThreshExt_off;
 848                 int m2ThreshExt = on ?
 849                         aniState->iniDef.m2ThreshExt : m2ThreshExt_off;
 850
 851                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
 852                               AR_PHY_SFCORR_LOW_M1_THRESH_LOW,
 853                               m1ThreshLow);
 854                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
 855                               AR_PHY_SFCORR_LOW_M2_THRESH_LOW,
 856                               m2ThreshLow);
 857                 REG_RMW_FIELD(ah, AR_PHY_SFCORR,
 858                               AR_PHY_SFCORR_M1_THRESH, m1Thresh);
 859                 REG_RMW_FIELD(ah, AR_PHY_SFCORR,
 860                               AR_PHY_SFCORR_M2_THRESH, m2Thresh);
 861                 REG_RMW_FIELD(ah, AR_PHY_SFCORR,
 862                               AR_PHY_SFCORR_M2COUNT_THR, m2CountThr);
 863                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
 864                               AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW,
 865                               m2CountThrLow);
 866
 867                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 868                               AR_PHY_SFCORR_EXT_M1_THRESH_LOW, m1ThreshLowExt);
 869                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 870                               AR_PHY_SFCORR_EXT_M2_THRESH_LOW, m2ThreshLowExt);
 871                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 872                               AR_PHY_SFCORR_EXT_M1_THRESH, m1ThreshExt);
 873                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 874                               AR_PHY_SFCORR_EXT_M2_THRESH, m2ThreshExt);
 875
 876                 if (on)
 877                         REG_SET_BIT(ah, AR_PHY_SFCORR_LOW,
 878                                     AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
 879                 else
 880                         REG_CLR_BIT(ah, AR_PHY_SFCORR_LOW,
 881                                     AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
 882
 883                 if (!on != aniState->ofdmWeakSigDetectOff) {
 884                         ath_dbg(common, ANI,
 885                                 "** ch %d: ofdm weak signal: %s=>%s\n",
 886                                 chan->channel,
 887                                 !aniState->ofdmWeakSigDetectOff ?
 888                                 "on" : "off",
 889                                 on ? "on" : "off");
 890                         if (on)
 891                                 ah->stats.ast_ani_ofdmon++;
 892                         else
 893                                 ah->stats.ast_ani_ofdmoff++;
 894                         aniState->ofdmWeakSigDetectOff = !on;
 895                 }
 896                 break;
 897         }
 898         case ATH9K_ANI_FIRSTEP_LEVEL:{
 899                 u32 level = param;
 900
 901                 if (level >= ARRAY_SIZE(firstep_table)) {
 902                         ath_dbg(common, ANI,
 903                                 "ATH9K_ANI_FIRSTEP_LEVEL: level out of range (%u > %zu)\n",
 904                                 level, ARRAY_SIZE(firstep_table));
 905                         return false;
 906                 }
 907
 908                 /*
 909                  * make register setting relative to default
 910                  * from INI file & cap value
 911                  */
 912                 value = firstep_table[level] -
 913                         firstep_table[ATH9K_ANI_FIRSTEP_LVL_NEW] +
 914                         aniState->iniDef.firstep;
 915                 if (value < ATH9K_SIG_FIRSTEP_SETTING_MIN)
 916                         value = ATH9K_SIG_FIRSTEP_SETTING_MIN;
 917                 if (value > ATH9K_SIG_FIRSTEP_SETTING_MAX)
 918                         value = ATH9K_SIG_FIRSTEP_SETTING_MAX;
 919                 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
 920                               AR_PHY_FIND_SIG_FIRSTEP,
 921                               value);
 922                 /*
 923                  * we need to set first step low register too
 924                  * make register setting relative to default
 925                  * from INI file & cap value
 926                  */
 927                 value2 = firstep_table[level] -
 928                          firstep_table[ATH9K_ANI_FIRSTEP_LVL_NEW] +
 929                          aniState->iniDef.firstepLow;
 930                 if (value2 < ATH9K_SIG_FIRSTEP_SETTING_MIN)
 931                         value2 = ATH9K_SIG_FIRSTEP_SETTING_MIN;
 932                 if (value2 > ATH9K_SIG_FIRSTEP_SETTING_MAX)
 933                         value2 = ATH9K_SIG_FIRSTEP_SETTING_MAX;
 934
 935                 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW,
 936                               AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW, value2);
 937
 938                 if (level != aniState->firstepLevel) {
 939                         ath_dbg(common, ANI,
 940                                 "** ch %d: level %d=>%d[def:%d] firstep[level]=%d ini=%d\n",
 941                                 chan->channel,
 942                                 aniState->firstepLevel,
 943                                 level,
 944                                 ATH9K_ANI_FIRSTEP_LVL_NEW,
 945                                 value,
 946                                 aniState->iniDef.firstep);
 947                         ath_dbg(common, ANI,
 948                                 "** ch %d: level %d=>%d[def:%d] firstep_low[level]=%d ini=%d\n",
 949                                 chan->channel,
 950                                 aniState->firstepLevel,
 951                                 level,
 952                                 ATH9K_ANI_FIRSTEP_LVL_NEW,
 953                                 value2,
 954                                 aniState->iniDef.firstepLow);
 955                         if (level > aniState->firstepLevel)
 956                                 ah->stats.ast_ani_stepup++;
 957                         else if (level < aniState->firstepLevel)
 958                                 ah->stats.ast_ani_stepdown++;
 959                         aniState->firstepLevel = level;
 960                 }
 961                 break;
 962         }
 963         case ATH9K_ANI_SPUR_IMMUNITY_LEVEL:{
 964                 u32 level = param;
 965
 966                 if (level >= ARRAY_SIZE(cycpwrThr1_table)) {
 967                         ath_dbg(common, ANI,
 968                                 "ATH9K_ANI_SPUR_IMMUNITY_LEVEL: level out of range (%u > %zu)\n",
 969                                 level, ARRAY_SIZE(cycpwrThr1_table));
 970                         return false;
 971                 }
 972                 /*
 973                  * make register setting relative to default
 974                  * from INI file & cap value
 975                  */
 976                 value = cycpwrThr1_table[level] -
 977                         cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL_NEW] +
 978                         aniState->iniDef.cycpwrThr1;
 979                 if (value < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
 980                         value = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
 981                 if (value > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
 982                         value = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
 983                 REG_RMW_FIELD(ah, AR_PHY_TIMING5,
 984                               AR_PHY_TIMING5_CYCPWR_THR1,
 985                               value);
 986
 987                 /*
 988                  * set AR_PHY_EXT_CCA for extension channel
 989                  * make register setting relative to default
 990                  * from INI file & cap value
 991                  */
 992                 value2 = cycpwrThr1_table[level] -
 993                          cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL_NEW] +
 994                          aniState->iniDef.cycpwrThr1Ext;
 995                 if (value2 < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
 996                         value2 = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
 997                 if (value2 > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
 998                         value2 = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
 999                 REG_RMW_FIELD(ah, AR_PHY_EXT_CCA,
1000                               AR_PHY_EXT_CYCPWR_THR1, value2);
1001
1002                 if (level != aniState->spurImmunityLevel) {
1003                         ath_dbg(common, ANI,
1004                                 "** ch %d: level %d=>%d[def:%d] cycpwrThr1[level]=%d ini=%d\n",
1005                                 chan->channel,
1006                                 aniState->spurImmunityLevel,
1007                                 level,
1008                                 ATH9K_ANI_SPUR_IMMUNE_LVL_NEW,
1009                                 value,
1010                                 aniState->iniDef.cycpwrThr1);
1011                         ath_dbg(common, ANI,
1012                                 "** ch %d: level %d=>%d[def:%d] cycpwrThr1Ext[level]=%d ini=%d\n",
1013                                 chan->channel,
1014                                 aniState->spurImmunityLevel,
1015                                 level,
1016                                 ATH9K_ANI_SPUR_IMMUNE_LVL_NEW,
1017                                 value2,
1018                                 aniState->iniDef.cycpwrThr1Ext);
1019                         if (level > aniState->spurImmunityLevel)
1020                                 ah->stats.ast_ani_spurup++;
1021                         else if (level < aniState->spurImmunityLevel)
1022                                 ah->stats.ast_ani_spurdown++;
1023                         aniState->spurImmunityLevel = level;
1024                 }
1025                 break;
1026         }
1027         case ATH9K_ANI_MRC_CCK:{
1028                 /*
1029                  * is_on == 1 means MRC CCK ON (default, less noise imm)
1030                  * is_on == 0 means MRC CCK is OFF (more noise imm)
1031                  */
1032                 bool is_on = param ? 1 : 0;
1033                 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
1034                               AR_PHY_MRC_CCK_ENABLE, is_on);
1035                 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
1036                               AR_PHY_MRC_CCK_MUX_REG, is_on);
1037                 if (!is_on != aniState->mrcCCKOff) {
1038                         ath_dbg(common, ANI, "** ch %d: MRC CCK: %s=>%s\n",
1039                                 chan->channel,
1040                                 !aniState->mrcCCKOff ? "on" : "off",
1041                                 is_on ? "on" : "off");
1042                 if (is_on)
1043                         ah->stats.ast_ani_ccklow++;
1044                 else
1045                         ah->stats.ast_ani_cckhigh++;
1046                 aniState->mrcCCKOff = !is_on;
1047                 }
1048         break;
1049         }
1050         case ATH9K_ANI_PRESENT:
1051                 break;
1052         default:
1053                 ath_dbg(common, ANI, "invalid cmd %u\n", cmd);
1054                 return false;
1055         }
1056
1057         ath_dbg(common, ANI,
1058                 "ANI parameters: SI=%d, ofdmWS=%s FS=%d MRCcck=%s listenTime=%d ofdmErrs=%d cckErrs=%d\n",
1059                 aniState->spurImmunityLevel,
1060                 !aniState->ofdmWeakSigDetectOff ? "on" : "off",
1061                 aniState->firstepLevel,
1062                 !aniState->mrcCCKOff ? "on" : "off",
1063                 aniState->listenTime,
1064                 aniState->ofdmPhyErrCount,
1065                 aniState->cckPhyErrCount);
1066         return true;
1067 }
1068
1069 static void ar9003_hw_do_getnf(struct ath_hw *ah,
1070                               int16_t nfarray[NUM_NF_READINGS])
1071 {
1072 #define AR_PHY_CH_MINCCA_PWR    0x1FF00000
1073 #define AR_PHY_CH_MINCCA_PWR_S  20
1074 #define AR_PHY_CH_EXT_MINCCA_PWR 0x01FF0000
1075 #define AR_PHY_CH_EXT_MINCCA_PWR_S 16
1076
1077         int16_t nf;
1078         int i;
1079
1080         for (i = 0; i < AR9300_MAX_CHAINS; i++) {
1081                 if (ah->rxchainmask & BIT(i)) {
1082                         nf = MS(REG_READ(ah, ah->nf_regs[i]),
1083                                          AR_PHY_CH_MINCCA_PWR);
1084                         nfarray[i] = sign_extend32(nf, 8);
1085
1086                         if (IS_CHAN_HT40(ah->curchan)) {
1087                                 u8 ext_idx = AR9300_MAX_CHAINS + i;
1088
1089                                 nf = MS(REG_READ(ah, ah->nf_regs[ext_idx]),
1090                                                  AR_PHY_CH_EXT_MINCCA_PWR);
1091                                 nfarray[ext_idx] = sign_extend32(nf, 8);
1092                         }
1093                 }
1094         }
1095 }
1096
1097 static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
1098 {
1099         ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
1100         ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
1101         ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
1102         ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
1103         ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
1104         ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9300_5GHZ;
1105
1106         if (AR_SREV_9330(ah))
1107                 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9330_2GHZ;
1108
1109         if (AR_SREV_9462(ah)) {
1110                 ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_2GHZ;
1111                 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9462_2GHZ;
1112                 ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_5GHZ;
1113                 ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9462_5GHZ;
1114         }
1115 }
1116
1117 /*
1118  * Initialize the ANI register values with default (ini) values.
1119  * This routine is called during a (full) hardware reset after
1120  * all the registers are initialised from the INI.
1121  */
1122 static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah)
1123 {
1124         struct ar5416AniState *aniState;
1125         struct ath_common *common = ath9k_hw_common(ah);
1126         struct ath9k_channel *chan = ah->curchan;
1127         struct ath9k_ani_default *iniDef;
1128         u32 val;
1129
1130         aniState = &ah->curchan->ani;
1131         iniDef = &aniState->iniDef;
1132
1133         ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz/0x%x\n",
1134                 ah->hw_version.macVersion,
1135                 ah->hw_version.macRev,
1136                 ah->opmode,
1137                 chan->channel,
1138                 chan->channelFlags);
1139
1140         val = REG_READ(ah, AR_PHY_SFCORR);
1141         iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH);
1142         iniDef->m2Thresh = MS(val, AR_PHY_SFCORR_M2_THRESH);
1143         iniDef->m2CountThr = MS(val, AR_PHY_SFCORR_M2COUNT_THR);
1144
1145         val = REG_READ(ah, AR_PHY_SFCORR_LOW);
1146         iniDef->m1ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M1_THRESH_LOW);
1147         iniDef->m2ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M2_THRESH_LOW);
1148         iniDef->m2CountThrLow = MS(val, AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW);
1149
1150         val = REG_READ(ah, AR_PHY_SFCORR_EXT);
1151         iniDef->m1ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH);
1152         iniDef->m2ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH);
1153         iniDef->m1ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH_LOW);
1154         iniDef->m2ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH_LOW);
1155         iniDef->firstep = REG_READ_FIELD(ah,
1156                                          AR_PHY_FIND_SIG,
1157                                          AR_PHY_FIND_SIG_FIRSTEP);
1158         iniDef->firstepLow = REG_READ_FIELD(ah,
1159                                             AR_PHY_FIND_SIG_LOW,
1160                                             AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW);
1161         iniDef->cycpwrThr1 = REG_READ_FIELD(ah,
1162                                             AR_PHY_TIMING5,
1163                                             AR_PHY_TIMING5_CYCPWR_THR1);
1164         iniDef->cycpwrThr1Ext = REG_READ_FIELD(ah,
1165                                                AR_PHY_EXT_CCA,
1166                                                AR_PHY_EXT_CYCPWR_THR1);
1167
1168         /* these levels just got reset to defaults by the INI */
1169         aniState->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL_NEW;
1170         aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL_NEW;
1171         aniState->ofdmWeakSigDetectOff = !ATH9K_ANI_USE_OFDM_WEAK_SIG;
1172         aniState->mrcCCKOff = !ATH9K_ANI_ENABLE_MRC_CCK;
1173 }
1174
1175 static void ar9003_hw_set_radar_params(struct ath_hw *ah,
1176                                        struct ath_hw_radar_conf *conf)
1177 {
1178         u32 radar_0 = 0, radar_1 = 0;
1179
1180         if (!conf) {
1181                 REG_CLR_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_ENA);
1182                 return;
1183         }
1184
1185         radar_0 |= AR_PHY_RADAR_0_ENA | AR_PHY_RADAR_0_FFT_ENA;
1186         radar_0 |= SM(conf->fir_power, AR_PHY_RADAR_0_FIRPWR);
1187         radar_0 |= SM(conf->radar_rssi, AR_PHY_RADAR_0_RRSSI);
1188         radar_0 |= SM(conf->pulse_height, AR_PHY_RADAR_0_HEIGHT);
1189         radar_0 |= SM(conf->pulse_rssi, AR_PHY_RADAR_0_PRSSI);
1190         radar_0 |= SM(conf->pulse_inband, AR_PHY_RADAR_0_INBAND);
1191
1192         radar_1 |= AR_PHY_RADAR_1_MAX_RRSSI;
1193         radar_1 |= AR_PHY_RADAR_1_BLOCK_CHECK;
1194         radar_1 |= SM(conf->pulse_maxlen, AR_PHY_RADAR_1_MAXLEN);
1195         radar_1 |= SM(conf->pulse_inband_step, AR_PHY_RADAR_1_RELSTEP_THRESH);
1196         radar_1 |= SM(conf->radar_inband, AR_PHY_RADAR_1_RELPWR_THRESH);
1197
1198         REG_WRITE(ah, AR_PHY_RADAR_0, radar_0);
1199         REG_WRITE(ah, AR_PHY_RADAR_1, radar_1);
1200         if (conf->ext_channel)
1201                 REG_SET_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA);
1202         else
1203                 REG_CLR_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA);
1204 }
1205
1206 static void ar9003_hw_set_radar_conf(struct ath_hw *ah)
1207 {
1208         struct ath_hw_radar_conf *conf = &ah->radar_conf;
1209
1210         conf->fir_power = -28;
1211         conf->radar_rssi = 0;
1212         conf->pulse_height = 10;
1213         conf->pulse_rssi = 24;
1214         conf->pulse_inband = 8;
1215         conf->pulse_maxlen = 255;
1216         conf->pulse_inband_step = 12;
1217         conf->radar_inband = 8;
1218 }
1219
1220 static void ar9003_hw_antdiv_comb_conf_get(struct ath_hw *ah,
1221                                    struct ath_hw_antcomb_conf *antconf)
1222 {
1223         u32 regval;
1224
1225         regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1226         antconf->main_lna_conf = (regval & AR_PHY_9485_ANT_DIV_MAIN_LNACONF) >>
1227                                   AR_PHY_9485_ANT_DIV_MAIN_LNACONF_S;
1228         antconf->alt_lna_conf = (regval & AR_PHY_9485_ANT_DIV_ALT_LNACONF) >>
1229                                  AR_PHY_9485_ANT_DIV_ALT_LNACONF_S;
1230         antconf->fast_div_bias = (regval & AR_PHY_9485_ANT_FAST_DIV_BIAS) >>
1231                                   AR_PHY_9485_ANT_FAST_DIV_BIAS_S;
1232
1233         if (AR_SREV_9330_11(ah)) {
1234                 antconf->lna1_lna2_delta = -9;
1235                 antconf->div_group = 1;
1236         } else if (AR_SREV_9485(ah)) {
1237                 antconf->lna1_lna2_delta = -9;
1238                 antconf->div_group = 2;
1239         } else {
1240                 antconf->lna1_lna2_delta = -3;
1241                 antconf->div_group = 0;
1242         }
1243 }
1244
1245 static void ar9003_hw_antdiv_comb_conf_set(struct ath_hw *ah,
1246                                    struct ath_hw_antcomb_conf *antconf)
1247 {
1248         u32 regval;
1249
1250         regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1251         regval &= ~(AR_PHY_9485_ANT_DIV_MAIN_LNACONF |
1252                     AR_PHY_9485_ANT_DIV_ALT_LNACONF |
1253                     AR_PHY_9485_ANT_FAST_DIV_BIAS |
1254                     AR_PHY_9485_ANT_DIV_MAIN_GAINTB |
1255                     AR_PHY_9485_ANT_DIV_ALT_GAINTB);
1256         regval |= ((antconf->main_lna_conf <<
1257                                         AR_PHY_9485_ANT_DIV_MAIN_LNACONF_S)
1258                    & AR_PHY_9485_ANT_DIV_MAIN_LNACONF);
1259         regval |= ((antconf->alt_lna_conf << AR_PHY_9485_ANT_DIV_ALT_LNACONF_S)
1260                    & AR_PHY_9485_ANT_DIV_ALT_LNACONF);
1261         regval |= ((antconf->fast_div_bias << AR_PHY_9485_ANT_FAST_DIV_BIAS_S)
1262                    & AR_PHY_9485_ANT_FAST_DIV_BIAS);
1263         regval |= ((antconf->main_gaintb << AR_PHY_9485_ANT_DIV_MAIN_GAINTB_S)
1264                    & AR_PHY_9485_ANT_DIV_MAIN_GAINTB);
1265         regval |= ((antconf->alt_gaintb << AR_PHY_9485_ANT_DIV_ALT_GAINTB_S)
1266                    & AR_PHY_9485_ANT_DIV_ALT_GAINTB);
1267
1268         REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
1269 }
1270
1271 static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
1272                                       struct ath9k_channel *chan,
1273                                       u8 *ini_reloaded)
1274 {
1275         unsigned int regWrites = 0;
1276         u32 modesIndex;
1277
1278         switch (chan->chanmode) {
1279         case CHANNEL_A:
1280         case CHANNEL_A_HT20:
1281                 modesIndex = 1;
1282                 break;
1283         case CHANNEL_A_HT40PLUS:
1284         case CHANNEL_A_HT40MINUS:
1285                 modesIndex = 2;
1286                 break;
1287         case CHANNEL_G:
1288         case CHANNEL_G_HT20:
1289         case CHANNEL_B:
1290                 modesIndex = 4;
1291                 break;
1292         case CHANNEL_G_HT40PLUS:
1293         case CHANNEL_G_HT40MINUS:
1294                 modesIndex = 3;
1295                 break;
1296
1297         default:
1298                 return -EINVAL;
1299         }
1300
1301         if (modesIndex == ah->modes_index) {
1302                 *ini_reloaded = false;
1303                 goto set_rfmode;
1304         }
1305
1306         ar9003_hw_prog_ini(ah, &ah->iniSOC[ATH_INI_POST], modesIndex);
1307         ar9003_hw_prog_ini(ah, &ah->iniMac[ATH_INI_POST], modesIndex);
1308         ar9003_hw_prog_ini(ah, &ah->iniBB[ATH_INI_POST], modesIndex);
1309         ar9003_hw_prog_ini(ah, &ah->iniRadio[ATH_INI_POST], modesIndex);
1310         if (AR_SREV_9462_20(ah))
1311                 ar9003_hw_prog_ini(ah,
1312                                 &ah->ini_radio_post_sys2ant,
1313                                 modesIndex);
1314
1315         REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
1316
1317         /*
1318          * For 5GHz channels requiring Fast Clock, apply
1319          * different modal values.
1320          */
1321         if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1322                 REG_WRITE_ARRAY(&ah->iniModesFastClock, modesIndex, regWrites);
1323
1324         REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites);
1325
1326         ah->modes_index = modesIndex;
1327         *ini_reloaded = true;
1328
1329 set_rfmode:
1330         ar9003_hw_set_rfmode(ah, chan);
1331         return 0;
1332 }
1333
1334 void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
1335 {
1336         struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
1337         struct ath_hw_ops *ops = ath9k_hw_ops(ah);
1338         static const u32 ar9300_cca_regs[6] = {
1339                 AR_PHY_CCA_0,
1340                 AR_PHY_CCA_1,
1341                 AR_PHY_CCA_2,
1342                 AR_PHY_EXT_CCA,
1343                 AR_PHY_EXT_CCA_1,
1344                 AR_PHY_EXT_CCA_2,
1345         };
1346
1347         priv_ops->rf_set_freq = ar9003_hw_set_channel;
1348         priv_ops->spur_mitigate_freq = ar9003_hw_spur_mitigate;
1349         priv_ops->compute_pll_control = ar9003_hw_compute_pll_control;
1350         priv_ops->set_channel_regs = ar9003_hw_set_channel_regs;
1351         priv_ops->init_bb = ar9003_hw_init_bb;
1352         priv_ops->process_ini = ar9003_hw_process_ini;
1353         priv_ops->set_rfmode = ar9003_hw_set_rfmode;
1354         priv_ops->mark_phy_inactive = ar9003_hw_mark_phy_inactive;
1355         priv_ops->set_delta_slope = ar9003_hw_set_delta_slope;
1356         priv_ops->rfbus_req = ar9003_hw_rfbus_req;
1357         priv_ops->rfbus_done = ar9003_hw_rfbus_done;
1358         priv_ops->ani_control = ar9003_hw_ani_control;
1359         priv_ops->do_getnf = ar9003_hw_do_getnf;
1360         priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs;
1361         priv_ops->set_radar_params = ar9003_hw_set_radar_params;
1362         priv_ops->fast_chan_change = ar9003_hw_fast_chan_change;
1363
1364         ops->antdiv_comb_conf_get = ar9003_hw_antdiv_comb_conf_get;
1365         ops->antdiv_comb_conf_set = ar9003_hw_antdiv_comb_conf_set;
1366
1367         ar9003_hw_set_nf_limits(ah);
1368         ar9003_hw_set_radar_conf(ah);
1369         memcpy(ah->nf_regs, ar9300_cca_regs, sizeof(ah->nf_regs));
1370 }
1371
1372 void ar9003_hw_bb_watchdog_config(struct ath_hw *ah)
1373 {
1374         struct ath_common *common = ath9k_hw_common(ah);
1375         u32 idle_tmo_ms = ah->bb_watchdog_timeout_ms;
1376         u32 val, idle_count;
1377
1378         if (!idle_tmo_ms) {
1379                 /* disable IRQ, disable chip-reset for BB panic */
1380                 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
1381                           REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) &
1382                           ~(AR_PHY_WATCHDOG_RST_ENABLE |
1383                             AR_PHY_WATCHDOG_IRQ_ENABLE));
1384
1385                 /* disable watchdog in non-IDLE mode, disable in IDLE mode */
1386                 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
1387                           REG_READ(ah, AR_PHY_WATCHDOG_CTL_1) &
1388                           ~(AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
1389                             AR_PHY_WATCHDOG_IDLE_ENABLE));
1390
1391                 ath_dbg(common, RESET, "Disabled BB Watchdog\n");
1392                 return;
1393         }
1394
1395         /* enable IRQ, disable chip-reset for BB watchdog */
1396         val = REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) & AR_PHY_WATCHDOG_CNTL2_MASK;
1397         REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
1398                   (val | AR_PHY_WATCHDOG_IRQ_ENABLE) &
1399                   ~AR_PHY_WATCHDOG_RST_ENABLE);
1400
1401         /* bound limit to 10 secs */
1402         if (idle_tmo_ms > 10000)
1403                 idle_tmo_ms = 10000;
1404
1405         /*
1406          * The time unit for watchdog event is 2^15 44/88MHz cycles.
1407          *
1408          * For HT20 we have a time unit of 2^15/44 MHz = .74 ms per tick
1409          * For HT40 we have a time unit of 2^15/88 MHz = .37 ms per tick
1410          *
1411          * Given we use fast clock now in 5 GHz, these time units should
1412          * be common for both 2 GHz and 5 GHz.
1413          */
1414         idle_count = (100 * idle_tmo_ms) / 74;
1415         if (ah->curchan && IS_CHAN_HT40(ah->curchan))
1416                 idle_count = (100 * idle_tmo_ms) / 37;
1417
1418         /*
1419          * enable watchdog in non-IDLE mode, disable in IDLE mode,
1420          * set idle time-out.
1421          */
1422         REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
1423                   AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
1424                   AR_PHY_WATCHDOG_IDLE_MASK |
1425                   (AR_PHY_WATCHDOG_NON_IDLE_MASK & (idle_count << 2)));
1426
1427         ath_dbg(common, RESET, "Enabled BB Watchdog timeout (%u ms)\n",
1428                 idle_tmo_ms);
1429 }
1430
1431 void ar9003_hw_bb_watchdog_read(struct ath_hw *ah)
1432 {
1433         /*
1434          * we want to avoid printing in ISR context so we save the
1435          * watchdog status to be printed later in bottom half context.
1436          */
1437         ah->bb_watchdog_last_status = REG_READ(ah, AR_PHY_WATCHDOG_STATUS);
1438
1439         /*
1440          * the watchdog timer should reset on status read but to be sure
1441          * sure we write 0 to the watchdog status bit.
1442          */
1443         REG_WRITE(ah, AR_PHY_WATCHDOG_STATUS,
1444                   ah->bb_watchdog_last_status & ~AR_PHY_WATCHDOG_STATUS_CLR);
1445 }
1446
1447 void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah)
1448 {
1449         struct ath_common *common = ath9k_hw_common(ah);
1450         u32 status;
1451
1452         if (likely(!(common->debug_mask & ATH_DBG_RESET)))
1453                 return;
1454
1455         status = ah->bb_watchdog_last_status;
1456         ath_dbg(common, RESET,
1457                 "\n==== BB update: BB status=0x%08x ====\n", status);
1458         ath_dbg(common, RESET,
1459                 "** BB state: wd=%u det=%u rdar=%u rOFDM=%d rCCK=%u tOFDM=%u tCCK=%u agc=%u src=%u **\n",
1460                 MS(status, AR_PHY_WATCHDOG_INFO),
1461                 MS(status, AR_PHY_WATCHDOG_DET_HANG),
1462                 MS(status, AR_PHY_WATCHDOG_RADAR_SM),
1463                 MS(status, AR_PHY_WATCHDOG_RX_OFDM_SM),
1464                 MS(status, AR_PHY_WATCHDOG_RX_CCK_SM),
1465                 MS(status, AR_PHY_WATCHDOG_TX_OFDM_SM),
1466                 MS(status, AR_PHY_WATCHDOG_TX_CCK_SM),
1467                 MS(status, AR_PHY_WATCHDOG_AGC_SM),
1468                 MS(status, AR_PHY_WATCHDOG_SRCH_SM));
1469
1470         ath_dbg(common, RESET, "** BB WD cntl: cntl1=0x%08x cntl2=0x%08x **\n",
1471                 REG_READ(ah, AR_PHY_WATCHDOG_CTL_1),
1472                 REG_READ(ah, AR_PHY_WATCHDOG_CTL_2));
1473         ath_dbg(common, RESET, "** BB mode: BB_gen_controls=0x%08x **\n",
1474                 REG_READ(ah, AR_PHY_GEN_CTRL));
1475
1476 #define PCT(_field) (common->cc_survey._field * 100 / common->cc_survey.cycles)
1477         if (common->cc_survey.cycles)
1478                 ath_dbg(common, RESET,
1479                         "** BB busy times: rx_clear=%d%%, rx_frame=%d%%, tx_frame=%d%% **\n",
1480                         PCT(rx_busy), PCT(rx_frame), PCT(tx_frame));
1481
1482         ath_dbg(common, RESET, "==== BB update: done ====\n\n");
1483 }
1484 EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info);
1485
1486 void ar9003_hw_disable_phy_restart(struct ath_hw *ah)
1487 {
1488         u32 val;
1489
1490         /* While receiving unsupported rate frame rx state machine
1491          * gets into a state 0xb and if phy_restart happens in that
1492          * state, BB would go hang. If RXSM is in 0xb state after
1493          * first bb panic, ensure to disable the phy_restart.
1494          */
1495         if (!((MS(ah->bb_watchdog_last_status,
1496                   AR_PHY_WATCHDOG_RX_OFDM_SM) == 0xb) ||
1497             ah->bb_hang_rx_ofdm))
1498                 return;
1499
1500         ah->bb_hang_rx_ofdm = true;
1501         val = REG_READ(ah, AR_PHY_RESTART);
1502         val &= ~AR_PHY_RESTART_ENA;
1503
1504         REG_WRITE(ah, AR_PHY_RESTART, val);
1505 }
1506 EXPORT_SYMBOL(ar9003_hw_disable_phy_restart);