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

   1 /*
   2  * Copyright (c) 2010 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include "hw.h"
  18 #include "ar9003_phy.h"
  19
  20 static const int firstep_table[] =
  21 /* level:  0   1   2   3   4   5   6   7   8  */
  22         { -4, -2,  0,  2,  4,  6,  8, 10, 12 }; /* lvl 0-8, default 2 */
  23
  24 static const int cycpwrThr1_table[] =
  25 /* level:  0   1   2   3   4   5   6   7   8  */
  26         { -6, -4, -2,  0,  2,  4,  6,  8 };     /* lvl 0-7, default 3 */
  27
  28 /*
  29  * register values to turn OFDM weak signal detection OFF
  30  */
  31 static const int m1ThreshLow_off = 127;
  32 static const int m2ThreshLow_off = 127;
  33 static const int m1Thresh_off = 127;
  34 static const int m2Thresh_off = 127;
  35 static const int m2CountThr_off =  31;
  36 static const int m2CountThrLow_off =  63;
  37 static const int m1ThreshLowExt_off = 127;
  38 static const int m2ThreshLowExt_off = 127;
  39 static const int m1ThreshExt_off = 127;
  40 static const int m2ThreshExt_off = 127;
  41
  42 /**
  43  * ar9003_hw_set_channel - set channel on single-chip device
  44  * @ah: atheros hardware structure
  45  * @chan:
  46  *
  47  * This is the function to change channel on single-chip devices, that is
  48  * all devices after ar9280.
  49  *
  50  * This function takes the channel value in MHz and sets
  51  * hardware channel value. Assumes writes have been enabled to analog bus.
  52  *
  53  * Actual Expression,
  54  *
  55  * For 2GHz channel,
  56  * Channel Frequency = (3/4) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
  57  * (freq_ref = 40MHz)
  58  *
  59  * For 5GHz channel,
  60  * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^10)
  61  * (freq_ref = 40MHz/(24>>amodeRefSel))
  62  *
  63  * For 5GHz channels which are 5MHz spaced,
  64  * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
  65  * (freq_ref = 40MHz)
  66  */
  67 static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
  68 {
  69         u16 bMode, fracMode = 0, aModeRefSel = 0;
  70         u32 freq, channelSel = 0, reg32 = 0;
  71         struct chan_centers centers;
  72         int loadSynthChannel;
  73
  74         ath9k_hw_get_channel_centers(ah, chan, &centers);
  75         freq = centers.synth_center;
  76
  77         if (freq < 4800) {     /* 2 GHz, fractional mode */
  78                 channelSel = CHANSEL_2G(freq);
  79                 /* Set to 2G mode */
  80                 bMode = 1;
  81         } else {
  82                 channelSel = CHANSEL_5G(freq);
  83                 /* Doubler is ON, so, divide channelSel by 2. */
  84                 channelSel >>= 1;
  85                 /* Set to 5G mode */
  86                 bMode = 0;
  87         }
  88
  89         /* Enable fractional mode for all channels */
  90         fracMode = 1;
  91         aModeRefSel = 0;
  92         loadSynthChannel = 0;
  93
  94         reg32 = (bMode << 29);
  95         REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32);
  96
  97         /* Enable Long shift Select for Synthesizer */
  98         REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH4,
  99                       AR_PHY_SYNTH4_LONG_SHIFT_SELECT, 1);
 100
 101         /* Program Synth. setting */
 102         reg32 = (channelSel << 2) | (fracMode << 30) |
 103                 (aModeRefSel << 28) | (loadSynthChannel << 31);
 104         REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
 105
 106         /* Toggle Load Synth channel bit */
 107         loadSynthChannel = 1;
 108         reg32 = (channelSel << 2) | (fracMode << 30) |
 109                 (aModeRefSel << 28) | (loadSynthChannel << 31);
 110         REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
 111
 112         ah->curchan = chan;
 113         ah->curchan_rad_index = -1;
 114
 115         return 0;
 116 }
 117
 118 /**
 119  * ar9003_hw_spur_mitigate_mrc_cck - convert baseband spur frequency
 120  * @ah: atheros hardware structure
 121  * @chan:
 122  *
 123  * For single-chip solutions. Converts to baseband spur frequency given the
 124  * input channel frequency and compute register settings below.
 125  *
 126  * Spur mitigation for MRC CCK
 127  */
 128 static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
 129                                             struct ath9k_channel *chan)
 130 {
 131         static const u32 spur_freq[4] = { 2420, 2440, 2464, 2480 };
 132         int cur_bb_spur, negative = 0, cck_spur_freq;
 133         int i;
 134
 135         /*
 136          * Need to verify range +/- 10 MHz in control channel, otherwise spur
 137          * is out-of-band and can be ignored.
 138          */
 139
 140         for (i = 0; i < 4; i++) {
 141                 negative = 0;
 142                 cur_bb_spur = spur_freq[i] - chan->channel;
 143
 144                 if (cur_bb_spur < 0) {
 145                         negative = 1;
 146                         cur_bb_spur = -cur_bb_spur;
 147                 }
 148                 if (cur_bb_spur < 10) {
 149                         cck_spur_freq = (int)((cur_bb_spur << 19) / 11);
 150
 151                         if (negative == 1)
 152                                 cck_spur_freq = -cck_spur_freq;
 153
 154                         cck_spur_freq = cck_spur_freq & 0xfffff;
 155
 156                         REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
 157                                       AR_PHY_AGC_CONTROL_YCOK_MAX, 0x7);
 158                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 159                                       AR_PHY_CCK_SPUR_MIT_SPUR_RSSI_THR, 0x7f);
 160                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 161                                       AR_PHY_CCK_SPUR_MIT_SPUR_FILTER_TYPE,
 162                                       0x2);
 163                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 164                                       AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT,
 165                                       0x1);
 166                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 167                                       AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ,
 168                                       cck_spur_freq);
 169
 170                         return;
 171                 }
 172         }
 173
 174         REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
 175                       AR_PHY_AGC_CONTROL_YCOK_MAX, 0x5);
 176         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 177                       AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT, 0x0);
 178         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 179                       AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ, 0x0);
 180 }
 181
 182 /* Clean all spur register fields */
 183 static void ar9003_hw_spur_ofdm_clear(struct ath_hw *ah)
 184 {
 185         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 186                       AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0);
 187         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 188                       AR_PHY_TIMING11_SPUR_FREQ_SD, 0);
 189         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 190                       AR_PHY_TIMING11_SPUR_DELTA_PHASE, 0);
 191         REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 192                       AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, 0);
 193         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 194                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0);
 195         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 196                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0);
 197         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 198                       AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0);
 199         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 200                       AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 0);
 201         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 202                       AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 0);
 203
 204         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 205                       AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0);
 206         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 207                       AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0);
 208         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 209                       AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0);
 210         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 211                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, 0);
 212         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 213                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, 0);
 214         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 215                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, 0);
 216         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 217                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0);
 218         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 219                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0);
 220         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 221                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0);
 222         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 223                       AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0);
 224 }
 225
 226 static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
 227                                 int freq_offset,
 228                                 int spur_freq_sd,
 229                                 int spur_delta_phase,
 230                                 int spur_subchannel_sd)
 231 {
 232         int mask_index = 0;
 233
 234         /* OFDM Spur mitigation */
 235         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 236                  AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0x1);
 237         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 238                       AR_PHY_TIMING11_SPUR_FREQ_SD, spur_freq_sd);
 239         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 240                       AR_PHY_TIMING11_SPUR_DELTA_PHASE, spur_delta_phase);
 241         REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 242                       AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, spur_subchannel_sd);
 243         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 244                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0x1);
 245         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 246                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1);
 247         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 248                       AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0x1);
 249         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 250                       AR_PHY_SPUR_REG_SPUR_RSSI_THRESH, 34);
 251         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 252                       AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1);
 253
 254         if (REG_READ_FIELD(ah, AR_PHY_MODE,
 255                            AR_PHY_MODE_DYNAMIC) == 0x1)
 256                 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 257                               AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1);
 258
 259         mask_index = (freq_offset << 4) / 5;
 260         if (mask_index < 0)
 261                 mask_index = mask_index - 1;
 262
 263         mask_index = mask_index & 0x7f;
 264
 265         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 266                       AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0x1);
 267         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 268                       AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0x1);
 269         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 270                       AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0x1);
 271         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 272                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, mask_index);
 273         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 274                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, mask_index);
 275         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 276                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, mask_index);
 277         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 278                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0xc);
 279         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 280                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0xc);
 281         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 282                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
 283         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 284                       AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0xff);
 285 }
 286
 287 static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah,
 288                                      struct ath9k_channel *chan,
 289                                      int freq_offset)
 290 {
 291         int spur_freq_sd = 0;
 292         int spur_subchannel_sd = 0;
 293         int spur_delta_phase = 0;
 294
 295         if (IS_CHAN_HT40(chan)) {
 296                 if (freq_offset < 0) {
 297                         if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 298                                            AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
 299                                 spur_subchannel_sd = 1;
 300                         else
 301                                 spur_subchannel_sd = 0;
 302
 303                         spur_freq_sd = ((freq_offset + 10) << 9) / 11;
 304
 305                 } else {
 306                         if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 307                             AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
 308                                 spur_subchannel_sd = 0;
 309                         else
 310                                 spur_subchannel_sd = 1;
 311
 312                         spur_freq_sd = ((freq_offset - 10) << 9) / 11;
 313
 314                 }
 315
 316                 spur_delta_phase = (freq_offset << 17) / 5;
 317
 318         } else {
 319                 spur_subchannel_sd = 0;
 320                 spur_freq_sd = (freq_offset << 9) /11;
 321                 spur_delta_phase = (freq_offset << 18) / 5;
 322         }
 323
 324         spur_freq_sd = spur_freq_sd & 0x3ff;
 325         spur_delta_phase = spur_delta_phase & 0xfffff;
 326
 327         ar9003_hw_spur_ofdm(ah,
 328                             freq_offset,
 329                             spur_freq_sd,
 330                             spur_delta_phase,
 331                             spur_subchannel_sd);
 332 }
 333
 334 /* Spur mitigation for OFDM */
 335 static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah,
 336                                          struct ath9k_channel *chan)
 337 {
 338         int synth_freq;
 339         int range = 10;
 340         int freq_offset = 0;
 341         int mode;
 342         u8* spurChansPtr;
 343         unsigned int i;
 344         struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
 345
 346         if (IS_CHAN_5GHZ(chan)) {
 347                 spurChansPtr = &(eep->modalHeader5G.spurChans[0]);
 348                 mode = 0;
 349         }
 350         else {
 351                 spurChansPtr = &(eep->modalHeader2G.spurChans[0]);
 352                 mode = 1;
 353         }
 354
 355         if (spurChansPtr[0] == 0)
 356                 return; /* No spur in the mode */
 357
 358         if (IS_CHAN_HT40(chan)) {
 359                 range = 19;
 360                 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 361                                    AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
 362                         synth_freq = chan->channel - 10;
 363                 else
 364                         synth_freq = chan->channel + 10;
 365         } else {
 366                 range = 10;
 367                 synth_freq = chan->channel;
 368         }
 369
 370         ar9003_hw_spur_ofdm_clear(ah);
 371
 372         for (i = 0; spurChansPtr[i] && i < 5; i++) {
 373                 freq_offset = FBIN2FREQ(spurChansPtr[i], mode) - synth_freq;
 374                 if (abs(freq_offset) < range) {
 375                         ar9003_hw_spur_ofdm_work(ah, chan, freq_offset);
 376                         break;
 377                 }
 378         }
 379 }
 380
 381 static void ar9003_hw_spur_mitigate(struct ath_hw *ah,
 382                                     struct ath9k_channel *chan)
 383 {
 384         ar9003_hw_spur_mitigate_mrc_cck(ah, chan);
 385         ar9003_hw_spur_mitigate_ofdm(ah, chan);
 386 }
 387
 388 static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
 389                                          struct ath9k_channel *chan)
 390 {
 391         u32 pll;
 392
 393         pll = SM(0x5, AR_RTC_9300_PLL_REFDIV);
 394
 395         if (chan && IS_CHAN_HALF_RATE(chan))
 396                 pll |= SM(0x1, AR_RTC_9300_PLL_CLKSEL);
 397         else if (chan && IS_CHAN_QUARTER_RATE(chan))
 398                 pll |= SM(0x2, AR_RTC_9300_PLL_CLKSEL);
 399
 400         pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);
 401
 402         return pll;
 403 }
 404
 405 static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
 406                                        struct ath9k_channel *chan)
 407 {
 408         u32 phymode;
 409         u32 enableDacFifo = 0;
 410
 411         enableDacFifo =
 412                 (REG_READ(ah, AR_PHY_GEN_CTRL) & AR_PHY_GC_ENABLE_DAC_FIFO);
 413
 414         /* Enable 11n HT, 20 MHz */
 415         phymode = AR_PHY_GC_HT_EN | AR_PHY_GC_SINGLE_HT_LTF1 | AR_PHY_GC_WALSH |
 416                   AR_PHY_GC_SHORT_GI_40 | enableDacFifo;
 417
 418         /* Configure baseband for dynamic 20/40 operation */
 419         if (IS_CHAN_HT40(chan)) {
 420                 phymode |= AR_PHY_GC_DYN2040_EN;
 421                 /* Configure control (primary) channel at +-10MHz */
 422                 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
 423                     (chan->chanmode == CHANNEL_G_HT40PLUS))
 424                         phymode |= AR_PHY_GC_DYN2040_PRI_CH;
 425
 426         }
 427
 428         /* make sure we preserve INI settings */
 429         phymode |= REG_READ(ah, AR_PHY_GEN_CTRL);
 430         /* turn off Green Field detection for STA for now */
 431         phymode &= ~AR_PHY_GC_GF_DETECT_EN;
 432
 433         REG_WRITE(ah, AR_PHY_GEN_CTRL, phymode);
 434
 435         /* Configure MAC for 20/40 operation */
 436         ath9k_hw_set11nmac2040(ah);
 437
 438         /* global transmit timeout (25 TUs default)*/
 439         REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
 440         /* carrier sense timeout */
 441         REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
 442 }
 443
 444 static void ar9003_hw_init_bb(struct ath_hw *ah,
 445                               struct ath9k_channel *chan)
 446 {
 447         u32 synthDelay;
 448
 449         /*
 450          * Wait for the frequency synth to settle (synth goes on
 451          * via AR_PHY_ACTIVE_EN).  Read the phy active delay register.
 452          * Value is in 100ns increments.
 453          */
 454         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
 455         if (IS_CHAN_B(chan))
 456                 synthDelay = (4 * synthDelay) / 22;
 457         else
 458                 synthDelay /= 10;
 459
 460         /* Activate the PHY (includes baseband activate + synthesizer on) */
 461         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
 462
 463         /*
 464          * There is an issue if the AP starts the calibration before
 465          * the base band timeout completes.  This could result in the
 466          * rx_clear false triggering.  As a workaround we add delay an
 467          * extra BASE_ACTIVATE_DELAY usecs to ensure this condition
 468          * does not happen.
 469          */
 470         udelay(synthDelay + BASE_ACTIVATE_DELAY);
 471 }
 472
 473 void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
 474 {
 475         switch (rx) {
 476         case 0x5:
 477                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
 478                             AR_PHY_SWAP_ALT_CHAIN);
 479         case 0x3:
 480         case 0x1:
 481         case 0x2:
 482         case 0x7:
 483                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx);
 484                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx);
 485                 break;
 486         default:
 487                 break;
 488         }
 489
 490         REG_WRITE(ah, AR_SELFGEN_MASK, tx);
 491         if (tx == 0x5) {
 492                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
 493                             AR_PHY_SWAP_ALT_CHAIN);
 494         }
 495 }
 496
 497 /*
 498  * Override INI values with chip specific configuration.
 499  */
 500 static void ar9003_hw_override_ini(struct ath_hw *ah)
 501 {
 502         u32 val;
 503
 504         /*
 505          * Set the RX_ABORT and RX_DIS and clear it only after
 506          * RXE is set for MAC. This prevents frames with
 507          * corrupted descriptor status.
 508          */
 509         REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
 510
 511         /*
 512          * For AR9280 and above, there is a new feature that allows
 513          * Multicast search based on both MAC Address and Key ID. By default,
 514          * this feature is enabled. But since the driver is not using this
 515          * feature, we switch it off; otherwise multicast search based on
 516          * MAC addr only will fail.
 517          */
 518         val = REG_READ(ah, AR_PCU_MISC_MODE2) & (~AR_ADHOC_MCAST_KEYID_ENABLE);
 519         REG_WRITE(ah, AR_PCU_MISC_MODE2,
 520                   val | AR_AGG_WEP_ENABLE_FIX | AR_AGG_WEP_ENABLE);
 521 }
 522
 523 static void ar9003_hw_prog_ini(struct ath_hw *ah,
 524                                struct ar5416IniArray *iniArr,
 525                                int column)
 526 {
 527         unsigned int i, regWrites = 0;
 528
 529         /* New INI format: Array may be undefined (pre, core, post arrays) */
 530         if (!iniArr->ia_array)
 531                 return;
 532
 533         /*
 534          * New INI format: Pre, core, and post arrays for a given subsystem
 535          * may be modal (> 2 columns) or non-modal (2 columns). Determine if
 536          * the array is non-modal and force the column to 1.
 537          */
 538         if (column >= iniArr->ia_columns)
 539                 column = 1;
 540
 541         for (i = 0; i < iniArr->ia_rows; i++) {
 542                 u32 reg = INI_RA(iniArr, i, 0);
 543                 u32 val = INI_RA(iniArr, i, column);
 544
 545                 if (reg >= 0x16000 && reg < 0x17000)
 546                         ath9k_hw_analog_shift_regwrite(ah, reg, val);
 547                 else
 548                         REG_WRITE(ah, reg, val);
 549
 550                 DO_DELAY(regWrites);
 551         }
 552 }
 553
 554 static int ar9003_hw_process_ini(struct ath_hw *ah,
 555                                  struct ath9k_channel *chan)
 556 {
 557         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
 558         unsigned int regWrites = 0, i;
 559         struct ieee80211_channel *channel = chan->chan;
 560         u32 modesIndex, freqIndex;
 561
 562         switch (chan->chanmode) {
 563         case CHANNEL_A:
 564         case CHANNEL_A_HT20:
 565                 modesIndex = 1;
 566                 freqIndex = 1;
 567                 break;
 568         case CHANNEL_A_HT40PLUS:
 569         case CHANNEL_A_HT40MINUS:
 570                 modesIndex = 2;
 571                 freqIndex = 1;
 572                 break;
 573         case CHANNEL_G:
 574         case CHANNEL_G_HT20:
 575         case CHANNEL_B:
 576                 modesIndex = 4;
 577                 freqIndex = 2;
 578                 break;
 579         case CHANNEL_G_HT40PLUS:
 580         case CHANNEL_G_HT40MINUS:
 581                 modesIndex = 3;
 582                 freqIndex = 2;
 583                 break;
 584
 585         default:
 586                 return -EINVAL;
 587         }
 588
 589         for (i = 0; i < ATH_INI_NUM_SPLIT; i++) {
 590                 ar9003_hw_prog_ini(ah, &ah->iniSOC[i], modesIndex);
 591                 ar9003_hw_prog_ini(ah, &ah->iniMac[i], modesIndex);
 592                 ar9003_hw_prog_ini(ah, &ah->iniBB[i], modesIndex);
 593                 ar9003_hw_prog_ini(ah, &ah->iniRadio[i], modesIndex);
 594         }
 595
 596         REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites);
 597         REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
 598
 599         /*
 600          * For 5GHz channels requiring Fast Clock, apply
 601          * different modal values.
 602          */
 603         if (IS_CHAN_A_FAST_CLOCK(ah, chan))
 604                 REG_WRITE_ARRAY(&ah->iniModesAdditional,
 605                                 modesIndex, regWrites);
 606
 607         ar9003_hw_override_ini(ah);
 608         ar9003_hw_set_channel_regs(ah, chan);
 609         ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
 610
 611         /* Set TX power */
 612         ah->eep_ops->set_txpower(ah, chan,
 613                                  ath9k_regd_get_ctl(regulatory, chan),
 614                                  channel->max_antenna_gain * 2,
 615                                  channel->max_power * 2,
 616                                  min((u32) MAX_RATE_POWER,
 617                                  (u32) regulatory->power_limit), false);
 618
 619         return 0;
 620 }
 621
 622 static void ar9003_hw_set_rfmode(struct ath_hw *ah,
 623                                  struct ath9k_channel *chan)
 624 {
 625         u32 rfMode = 0;
 626
 627         if (chan == NULL)
 628                 return;
 629
 630         rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
 631                 ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
 632
 633         if (IS_CHAN_A_FAST_CLOCK(ah, chan))
 634                 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
 635
 636         REG_WRITE(ah, AR_PHY_MODE, rfMode);
 637 }
 638
 639 static void ar9003_hw_mark_phy_inactive(struct ath_hw *ah)
 640 {
 641         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
 642 }
 643
 644 static void ar9003_hw_set_delta_slope(struct ath_hw *ah,
 645                                       struct ath9k_channel *chan)
 646 {
 647         u32 coef_scaled, ds_coef_exp, ds_coef_man;
 648         u32 clockMhzScaled = 0x64000000;
 649         struct chan_centers centers;
 650
 651         /*
 652          * half and quarter rate can divide the scaled clock by 2 or 4
 653          * scale for selected channel bandwidth
 654          */
 655         if (IS_CHAN_HALF_RATE(chan))
 656                 clockMhzScaled = clockMhzScaled >> 1;
 657         else if (IS_CHAN_QUARTER_RATE(chan))
 658                 clockMhzScaled = clockMhzScaled >> 2;
 659
 660         /*
 661          * ALGO -> coef = 1e8/fcarrier*fclock/40;
 662          * scaled coef to provide precision for this floating calculation
 663          */
 664         ath9k_hw_get_channel_centers(ah, chan, &centers);
 665         coef_scaled = clockMhzScaled / centers.synth_center;
 666
 667         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
 668                                       &ds_coef_exp);
 669
 670         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
 671                       AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
 672         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
 673                       AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
 674
 675         /*
 676          * For Short GI,
 677          * scaled coeff is 9/10 that of normal coeff
 678          */
 679         coef_scaled = (9 * coef_scaled) / 10;
 680
 681         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
 682                                       &ds_coef_exp);
 683
 684         /* for short gi */
 685         REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
 686                       AR_PHY_SGI_DSC_MAN, ds_coef_man);
 687         REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
 688                       AR_PHY_SGI_DSC_EXP, ds_coef_exp);
 689 }
 690
 691 static bool ar9003_hw_rfbus_req(struct ath_hw *ah)
 692 {
 693         REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
 694         return ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
 695                              AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT);
 696 }
 697
 698 /*
 699  * Wait for the frequency synth to settle (synth goes on via PHY_ACTIVE_EN).
 700  * Read the phy active delay register. Value is in 100ns increments.
 701  */
 702 static void ar9003_hw_rfbus_done(struct ath_hw *ah)
 703 {
 704         u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
 705         if (IS_CHAN_B(ah->curchan))
 706                 synthDelay = (4 * synthDelay) / 22;
 707         else
 708                 synthDelay /= 10;
 709
 710         udelay(synthDelay + BASE_ACTIVATE_DELAY);
 711
 712         REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
 713 }
 714
 715 /*
 716  * Set the interrupt and GPIO values so the ISR can disable RF
 717  * on a switch signal.  Assumes GPIO port and interrupt polarity
 718  * are set prior to call.
 719  */
 720 static void ar9003_hw_enable_rfkill(struct ath_hw *ah)
 721 {
 722         /* Connect rfsilent_bb_l to baseband */
 723         REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
 724                     AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
 725         /* Set input mux for rfsilent_bb_l to GPIO #0 */
 726         REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
 727                     AR_GPIO_INPUT_MUX2_RFSILENT);
 728
 729         /*
 730          * Configure the desired GPIO port for input and
 731          * enable baseband rf silence.
 732          */
 733         ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
 734         REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
 735 }
 736
 737 static void ar9003_hw_set_diversity(struct ath_hw *ah, bool value)
 738 {
 739         u32 v = REG_READ(ah, AR_PHY_CCK_DETECT);
 740         if (value)
 741                 v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
 742         else
 743                 v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
 744         REG_WRITE(ah, AR_PHY_CCK_DETECT, v);
 745 }
 746
 747 static bool ar9003_hw_ani_control(struct ath_hw *ah,
 748                                   enum ath9k_ani_cmd cmd, int param)
 749 {
 750         struct ath_common *common = ath9k_hw_common(ah);
 751         struct ath9k_channel *chan = ah->curchan;
 752         struct ar5416AniState *aniState = &chan->ani;
 753         s32 value, value2;
 754
 755         switch (cmd & ah->ani_function) {
 756         case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{
 757                 /*
 758                  * on == 1 means ofdm weak signal detection is ON
 759                  * on == 1 is the default, for less noise immunity
 760                  *
 761                  * on == 0 means ofdm weak signal detection is OFF
 762                  * on == 0 means more noise imm
 763                  */
 764                 u32 on = param ? 1 : 0;
 765                 /*
 766                  * make register setting for default
 767                  * (weak sig detect ON) come from INI file
 768                  */
 769                 int m1ThreshLow = on ?
 770                         aniState->iniDef.m1ThreshLow : m1ThreshLow_off;
 771                 int m2ThreshLow = on ?
 772                         aniState->iniDef.m2ThreshLow : m2ThreshLow_off;
 773                 int m1Thresh = on ?
 774                         aniState->iniDef.m1Thresh : m1Thresh_off;
 775                 int m2Thresh = on ?
 776                         aniState->iniDef.m2Thresh : m2Thresh_off;
 777                 int m2CountThr = on ?
 778                         aniState->iniDef.m2CountThr : m2CountThr_off;
 779                 int m2CountThrLow = on ?
 780                         aniState->iniDef.m2CountThrLow : m2CountThrLow_off;
 781                 int m1ThreshLowExt = on ?
 782                         aniState->iniDef.m1ThreshLowExt : m1ThreshLowExt_off;
 783                 int m2ThreshLowExt = on ?
 784                         aniState->iniDef.m2ThreshLowExt : m2ThreshLowExt_off;
 785                 int m1ThreshExt = on ?
 786                         aniState->iniDef.m1ThreshExt : m1ThreshExt_off;
 787                 int m2ThreshExt = on ?
 788                         aniState->iniDef.m2ThreshExt : m2ThreshExt_off;
 789
 790                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
 791                               AR_PHY_SFCORR_LOW_M1_THRESH_LOW,
 792                               m1ThreshLow);
 793                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
 794                               AR_PHY_SFCORR_LOW_M2_THRESH_LOW,
 795                               m2ThreshLow);
 796                 REG_RMW_FIELD(ah, AR_PHY_SFCORR,
 797                               AR_PHY_SFCORR_M1_THRESH, m1Thresh);
 798                 REG_RMW_FIELD(ah, AR_PHY_SFCORR,
 799                               AR_PHY_SFCORR_M2_THRESH, m2Thresh);
 800                 REG_RMW_FIELD(ah, AR_PHY_SFCORR,
 801                               AR_PHY_SFCORR_M2COUNT_THR, m2CountThr);
 802                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
 803                               AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW,
 804                               m2CountThrLow);
 805
 806                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 807                               AR_PHY_SFCORR_EXT_M1_THRESH_LOW, m1ThreshLowExt);
 808                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 809                               AR_PHY_SFCORR_EXT_M2_THRESH_LOW, m2ThreshLowExt);
 810                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 811                               AR_PHY_SFCORR_EXT_M1_THRESH, m1ThreshExt);
 812                 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 813                               AR_PHY_SFCORR_EXT_M2_THRESH, m2ThreshExt);
 814
 815                 if (on)
 816                         REG_SET_BIT(ah, AR_PHY_SFCORR_LOW,
 817                                     AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
 818                 else
 819                         REG_CLR_BIT(ah, AR_PHY_SFCORR_LOW,
 820                                     AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
 821
 822                 if (!on != aniState->ofdmWeakSigDetectOff) {
 823                         ath_print(common, ATH_DBG_ANI,
 824                                   "** ch %d: ofdm weak signal: %s=>%s\n",
 825                                   chan->channel,
 826                                   !aniState->ofdmWeakSigDetectOff ?
 827                                         "on" : "off",
 828                                   on ? "on" : "off");
 829                         if (on)
 830                                 ah->stats.ast_ani_ofdmon++;
 831                         else
 832                                 ah->stats.ast_ani_ofdmoff++;
 833                         aniState->ofdmWeakSigDetectOff = !on;
 834                 }
 835                 break;
 836         }
 837         case ATH9K_ANI_FIRSTEP_LEVEL:{
 838                 u32 level = param;
 839
 840                 if (level >= ARRAY_SIZE(firstep_table)) {
 841                         ath_print(common, ATH_DBG_ANI,
 842                                   "ATH9K_ANI_FIRSTEP_LEVEL: level "
 843                                   "out of range (%u > %u)\n",
 844                                   level,
 845                                   (unsigned) ARRAY_SIZE(firstep_table));
 846                         return false;
 847                 }
 848
 849                 /*
 850                  * make register setting relative to default
 851                  * from INI file & cap value
 852                  */
 853                 value = firstep_table[level] -
 854                         firstep_table[ATH9K_ANI_FIRSTEP_LVL_NEW] +
 855                         aniState->iniDef.firstep;
 856                 if (value < ATH9K_SIG_FIRSTEP_SETTING_MIN)
 857                         value = ATH9K_SIG_FIRSTEP_SETTING_MIN;
 858                 if (value > ATH9K_SIG_FIRSTEP_SETTING_MAX)
 859                         value = ATH9K_SIG_FIRSTEP_SETTING_MAX;
 860                 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
 861                               AR_PHY_FIND_SIG_FIRSTEP,
 862                               value);
 863                 /*
 864                  * we need to set first step low register too
 865                  * make register setting relative to default
 866                  * from INI file & cap value
 867                  */
 868                 value2 = firstep_table[level] -
 869                          firstep_table[ATH9K_ANI_FIRSTEP_LVL_NEW] +
 870                          aniState->iniDef.firstepLow;
 871                 if (value2 < ATH9K_SIG_FIRSTEP_SETTING_MIN)
 872                         value2 = ATH9K_SIG_FIRSTEP_SETTING_MIN;
 873                 if (value2 > ATH9K_SIG_FIRSTEP_SETTING_MAX)
 874                         value2 = ATH9K_SIG_FIRSTEP_SETTING_MAX;
 875
 876                 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW,
 877                               AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW, value2);
 878
 879                 if (level != aniState->firstepLevel) {
 880                         ath_print(common, ATH_DBG_ANI,
 881                                   "** ch %d: level %d=>%d[def:%d] "
 882                                   "firstep[level]=%d ini=%d\n",
 883                                   chan->channel,
 884                                   aniState->firstepLevel,
 885                                   level,
 886                                   ATH9K_ANI_FIRSTEP_LVL_NEW,
 887                                   value,
 888                                   aniState->iniDef.firstep);
 889                         ath_print(common, ATH_DBG_ANI,
 890                                   "** ch %d: level %d=>%d[def:%d] "
 891                                   "firstep_low[level]=%d ini=%d\n",
 892                                   chan->channel,
 893                                   aniState->firstepLevel,
 894                                   level,
 895                                   ATH9K_ANI_FIRSTEP_LVL_NEW,
 896                                   value2,
 897                                   aniState->iniDef.firstepLow);
 898                         if (level > aniState->firstepLevel)
 899                                 ah->stats.ast_ani_stepup++;
 900                         else if (level < aniState->firstepLevel)
 901                                 ah->stats.ast_ani_stepdown++;
 902                         aniState->firstepLevel = level;
 903                 }
 904                 break;
 905         }
 906         case ATH9K_ANI_SPUR_IMMUNITY_LEVEL:{
 907                 u32 level = param;
 908
 909                 if (level >= ARRAY_SIZE(cycpwrThr1_table)) {
 910                         ath_print(common, ATH_DBG_ANI,
 911                                   "ATH9K_ANI_SPUR_IMMUNITY_LEVEL: level "
 912                                   "out of range (%u > %u)\n",
 913                                   level,
 914                                   (unsigned) ARRAY_SIZE(cycpwrThr1_table));
 915                         return false;
 916                 }
 917                 /*
 918                  * make register setting relative to default
 919                  * from INI file & cap value
 920                  */
 921                 value = cycpwrThr1_table[level] -
 922                         cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL_NEW] +
 923                         aniState->iniDef.cycpwrThr1;
 924                 if (value < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
 925                         value = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
 926                 if (value > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
 927                         value = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
 928                 REG_RMW_FIELD(ah, AR_PHY_TIMING5,
 929                               AR_PHY_TIMING5_CYCPWR_THR1,
 930                               value);
 931
 932                 /*
 933                  * set AR_PHY_EXT_CCA for extension channel
 934                  * make register setting relative to default
 935                  * from INI file & cap value
 936                  */
 937                 value2 = cycpwrThr1_table[level] -
 938                          cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL_NEW] +
 939                          aniState->iniDef.cycpwrThr1Ext;
 940                 if (value2 < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
 941                         value2 = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
 942                 if (value2 > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
 943                         value2 = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
 944                 REG_RMW_FIELD(ah, AR_PHY_EXT_CCA,
 945                               AR_PHY_EXT_CYCPWR_THR1, value2);
 946
 947                 if (level != aniState->spurImmunityLevel) {
 948                         ath_print(common, ATH_DBG_ANI,
 949                                   "** ch %d: level %d=>%d[def:%d] "
 950                                   "cycpwrThr1[level]=%d ini=%d\n",
 951                                   chan->channel,
 952                                   aniState->spurImmunityLevel,
 953                                   level,
 954                                   ATH9K_ANI_SPUR_IMMUNE_LVL_NEW,
 955                                   value,
 956                                   aniState->iniDef.cycpwrThr1);
 957                         ath_print(common, ATH_DBG_ANI,
 958                                   "** ch %d: level %d=>%d[def:%d] "
 959                                   "cycpwrThr1Ext[level]=%d ini=%d\n",
 960                                   chan->channel,
 961                                   aniState->spurImmunityLevel,
 962                                   level,
 963                                   ATH9K_ANI_SPUR_IMMUNE_LVL_NEW,
 964                                   value2,
 965                                   aniState->iniDef.cycpwrThr1Ext);
 966                         if (level > aniState->spurImmunityLevel)
 967                                 ah->stats.ast_ani_spurup++;
 968                         else if (level < aniState->spurImmunityLevel)
 969                                 ah->stats.ast_ani_spurdown++;
 970                         aniState->spurImmunityLevel = level;
 971                 }
 972                 break;
 973         }
 974         case ATH9K_ANI_MRC_CCK:{
 975                 /*
 976                  * is_on == 1 means MRC CCK ON (default, less noise imm)
 977                  * is_on == 0 means MRC CCK is OFF (more noise imm)
 978                  */
 979                 bool is_on = param ? 1 : 0;
 980                 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
 981                               AR_PHY_MRC_CCK_ENABLE, is_on);
 982                 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
 983                               AR_PHY_MRC_CCK_MUX_REG, is_on);
 984                 if (!is_on != aniState->mrcCCKOff) {
 985                         ath_print(common, ATH_DBG_ANI,
 986                                   "** ch %d: MRC CCK: %s=>%s\n",
 987                                   chan->channel,
 988                                   !aniState->mrcCCKOff ? "on" : "off",
 989                                   is_on ? "on" : "off");
 990                 if (is_on)
 991                         ah->stats.ast_ani_ccklow++;
 992                 else
 993                         ah->stats.ast_ani_cckhigh++;
 994                 aniState->mrcCCKOff = !is_on;
 995                 }
 996         break;
 997         }
 998         case ATH9K_ANI_PRESENT:
 999                 break;
1000         default:
1001                 ath_print(common, ATH_DBG_ANI,
1002                           "invalid cmd %u\n", cmd);
1003                 return false;
1004         }
1005
1006         ath_print(common, ATH_DBG_ANI,
1007                   "ANI parameters: SI=%d, ofdmWS=%s FS=%d "
1008                   "MRCcck=%s listenTime=%d "
1009                   "ofdmErrs=%d cckErrs=%d\n",
1010                   aniState->spurImmunityLevel,
1011                   !aniState->ofdmWeakSigDetectOff ? "on" : "off",
1012                   aniState->firstepLevel,
1013                   !aniState->mrcCCKOff ? "on" : "off",
1014                   aniState->listenTime,
1015                   aniState->ofdmPhyErrCount,
1016                   aniState->cckPhyErrCount);
1017         return true;
1018 }
1019
1020 static void ar9003_hw_do_getnf(struct ath_hw *ah,
1021                               int16_t nfarray[NUM_NF_READINGS])
1022 {
1023         int16_t nf;
1024
1025         nf = MS(REG_READ(ah, AR_PHY_CCA_0), AR_PHY_MINCCA_PWR);
1026         nfarray[0] = sign_extend32(nf, 8);
1027
1028         nf = MS(REG_READ(ah, AR_PHY_CCA_1), AR_PHY_CH1_MINCCA_PWR);
1029         nfarray[1] = sign_extend32(nf, 8);
1030
1031         nf = MS(REG_READ(ah, AR_PHY_CCA_2), AR_PHY_CH2_MINCCA_PWR);
1032         nfarray[2] = sign_extend32(nf, 8);
1033
1034         if (!IS_CHAN_HT40(ah->curchan))
1035                 return;
1036
1037         nf = MS(REG_READ(ah, AR_PHY_EXT_CCA), AR_PHY_EXT_MINCCA_PWR);
1038         nfarray[3] = sign_extend32(nf, 8);
1039
1040         nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_1), AR_PHY_CH1_EXT_MINCCA_PWR);
1041         nfarray[4] = sign_extend32(nf, 8);
1042
1043         nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_2), AR_PHY_CH2_EXT_MINCCA_PWR);
1044         nfarray[5] = sign_extend32(nf, 8);
1045 }
1046
1047 static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
1048 {
1049         ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
1050         ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
1051         ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
1052         ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
1053         ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
1054         ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9300_5GHZ;
1055 }
1056
1057 /*
1058  * Initialize the ANI register values with default (ini) values.
1059  * This routine is called during a (full) hardware reset after
1060  * all the registers are initialised from the INI.
1061  */
1062 static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah)
1063 {
1064         struct ar5416AniState *aniState;
1065         struct ath_common *common = ath9k_hw_common(ah);
1066         struct ath9k_channel *chan = ah->curchan;
1067         struct ath9k_ani_default *iniDef;
1068         u32 val;
1069
1070         aniState = &ah->curchan->ani;
1071         iniDef = &aniState->iniDef;
1072
1073         ath_print(common, ATH_DBG_ANI,
1074                   "ver %d.%d opmode %u chan %d Mhz/0x%x\n",
1075                   ah->hw_version.macVersion,
1076                   ah->hw_version.macRev,
1077                   ah->opmode,
1078                   chan->channel,
1079                   chan->channelFlags);
1080
1081         val = REG_READ(ah, AR_PHY_SFCORR);
1082         iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH);
1083         iniDef->m2Thresh = MS(val, AR_PHY_SFCORR_M2_THRESH);
1084         iniDef->m2CountThr = MS(val, AR_PHY_SFCORR_M2COUNT_THR);
1085
1086         val = REG_READ(ah, AR_PHY_SFCORR_LOW);
1087         iniDef->m1ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M1_THRESH_LOW);
1088         iniDef->m2ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M2_THRESH_LOW);
1089         iniDef->m2CountThrLow = MS(val, AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW);
1090
1091         val = REG_READ(ah, AR_PHY_SFCORR_EXT);
1092         iniDef->m1ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH);
1093         iniDef->m2ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH);
1094         iniDef->m1ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH_LOW);
1095         iniDef->m2ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH_LOW);
1096         iniDef->firstep = REG_READ_FIELD(ah,
1097                                          AR_PHY_FIND_SIG,
1098                                          AR_PHY_FIND_SIG_FIRSTEP);
1099         iniDef->firstepLow = REG_READ_FIELD(ah,
1100                                             AR_PHY_FIND_SIG_LOW,
1101                                             AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW);
1102         iniDef->cycpwrThr1 = REG_READ_FIELD(ah,
1103                                             AR_PHY_TIMING5,
1104                                             AR_PHY_TIMING5_CYCPWR_THR1);
1105         iniDef->cycpwrThr1Ext = REG_READ_FIELD(ah,
1106                                                AR_PHY_EXT_CCA,
1107                                                AR_PHY_EXT_CYCPWR_THR1);
1108
1109         /* these levels just got reset to defaults by the INI */
1110         aniState->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL_NEW;
1111         aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL_NEW;
1112         aniState->ofdmWeakSigDetectOff = !ATH9K_ANI_USE_OFDM_WEAK_SIG;
1113         aniState->mrcCCKOff = !ATH9K_ANI_ENABLE_MRC_CCK;
1114 }
1115
1116 static void ar9003_hw_set_radar_params(struct ath_hw *ah,
1117                                        struct ath_hw_radar_conf *conf)
1118 {
1119         u32 radar_0 = 0, radar_1 = 0;
1120
1121         if (!conf) {
1122                 REG_CLR_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_ENA);
1123                 return;
1124         }
1125
1126         radar_0 |= AR_PHY_RADAR_0_ENA | AR_PHY_RADAR_0_FFT_ENA;
1127         radar_0 |= SM(conf->fir_power, AR_PHY_RADAR_0_FIRPWR);
1128         radar_0 |= SM(conf->radar_rssi, AR_PHY_RADAR_0_RRSSI);
1129         radar_0 |= SM(conf->pulse_height, AR_PHY_RADAR_0_HEIGHT);
1130         radar_0 |= SM(conf->pulse_rssi, AR_PHY_RADAR_0_PRSSI);
1131         radar_0 |= SM(conf->pulse_inband, AR_PHY_RADAR_0_INBAND);
1132
1133         radar_1 |= AR_PHY_RADAR_1_MAX_RRSSI;
1134         radar_1 |= AR_PHY_RADAR_1_BLOCK_CHECK;
1135         radar_1 |= SM(conf->pulse_maxlen, AR_PHY_RADAR_1_MAXLEN);
1136         radar_1 |= SM(conf->pulse_inband_step, AR_PHY_RADAR_1_RELSTEP_THRESH);
1137         radar_1 |= SM(conf->radar_inband, AR_PHY_RADAR_1_RELPWR_THRESH);
1138
1139         REG_WRITE(ah, AR_PHY_RADAR_0, radar_0);
1140         REG_WRITE(ah, AR_PHY_RADAR_1, radar_1);
1141         if (conf->ext_channel)
1142                 REG_SET_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA);
1143         else
1144                 REG_CLR_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA);
1145 }
1146
1147 static void ar9003_hw_set_radar_conf(struct ath_hw *ah)
1148 {
1149         struct ath_hw_radar_conf *conf = &ah->radar_conf;
1150
1151         conf->fir_power = -28;
1152         conf->radar_rssi = 0;
1153         conf->pulse_height = 10;
1154         conf->pulse_rssi = 24;
1155         conf->pulse_inband = 8;
1156         conf->pulse_maxlen = 255;
1157         conf->pulse_inband_step = 12;
1158         conf->radar_inband = 8;
1159 }
1160
1161 void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
1162 {
1163         struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
1164         static const u32 ar9300_cca_regs[6] = {
1165                 AR_PHY_CCA_0,
1166                 AR_PHY_CCA_1,
1167                 AR_PHY_CCA_2,
1168                 AR_PHY_EXT_CCA,
1169                 AR_PHY_EXT_CCA_1,
1170                 AR_PHY_EXT_CCA_2,
1171         };
1172
1173         priv_ops->rf_set_freq = ar9003_hw_set_channel;
1174         priv_ops->spur_mitigate_freq = ar9003_hw_spur_mitigate;
1175         priv_ops->compute_pll_control = ar9003_hw_compute_pll_control;
1176         priv_ops->set_channel_regs = ar9003_hw_set_channel_regs;
1177         priv_ops->init_bb = ar9003_hw_init_bb;
1178         priv_ops->process_ini = ar9003_hw_process_ini;
1179         priv_ops->set_rfmode = ar9003_hw_set_rfmode;
1180         priv_ops->mark_phy_inactive = ar9003_hw_mark_phy_inactive;
1181         priv_ops->set_delta_slope = ar9003_hw_set_delta_slope;
1182         priv_ops->rfbus_req = ar9003_hw_rfbus_req;
1183         priv_ops->rfbus_done = ar9003_hw_rfbus_done;
1184         priv_ops->enable_rfkill = ar9003_hw_enable_rfkill;
1185         priv_ops->set_diversity = ar9003_hw_set_diversity;
1186         priv_ops->ani_control = ar9003_hw_ani_control;
1187         priv_ops->do_getnf = ar9003_hw_do_getnf;
1188         priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs;
1189         priv_ops->set_radar_params = ar9003_hw_set_radar_params;
1190
1191         ar9003_hw_set_nf_limits(ah);
1192         ar9003_hw_set_radar_conf(ah);
1193         memcpy(ah->nf_regs, ar9300_cca_regs, sizeof(ah->nf_regs));
1194 }
1195
1196 void ar9003_hw_bb_watchdog_config(struct ath_hw *ah)
1197 {
1198         struct ath_common *common = ath9k_hw_common(ah);
1199         u32 idle_tmo_ms = ah->bb_watchdog_timeout_ms;
1200         u32 val, idle_count;
1201
1202         if (!idle_tmo_ms) {
1203                 /* disable IRQ, disable chip-reset for BB panic */
1204                 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
1205                           REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) &
1206                           ~(AR_PHY_WATCHDOG_RST_ENABLE |
1207                             AR_PHY_WATCHDOG_IRQ_ENABLE));
1208
1209                 /* disable watchdog in non-IDLE mode, disable in IDLE mode */
1210                 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
1211                           REG_READ(ah, AR_PHY_WATCHDOG_CTL_1) &
1212                           ~(AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
1213                             AR_PHY_WATCHDOG_IDLE_ENABLE));
1214
1215                 ath_print(common, ATH_DBG_RESET, "Disabled BB Watchdog\n");
1216                 return;
1217         }
1218
1219         /* enable IRQ, disable chip-reset for BB watchdog */
1220         val = REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) & AR_PHY_WATCHDOG_CNTL2_MASK;
1221         REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
1222                   (val | AR_PHY_WATCHDOG_IRQ_ENABLE) &
1223                   ~AR_PHY_WATCHDOG_RST_ENABLE);
1224
1225         /* bound limit to 10 secs */
1226         if (idle_tmo_ms > 10000)
1227                 idle_tmo_ms = 10000;
1228
1229         /*
1230          * The time unit for watchdog event is 2^15 44/88MHz cycles.
1231          *
1232          * For HT20 we have a time unit of 2^15/44 MHz = .74 ms per tick
1233          * For HT40 we have a time unit of 2^15/88 MHz = .37 ms per tick
1234          *
1235          * Given we use fast clock now in 5 GHz, these time units should
1236          * be common for both 2 GHz and 5 GHz.
1237          */
1238         idle_count = (100 * idle_tmo_ms) / 74;
1239         if (ah->curchan && IS_CHAN_HT40(ah->curchan))
1240                 idle_count = (100 * idle_tmo_ms) / 37;
1241
1242         /*
1243          * enable watchdog in non-IDLE mode, disable in IDLE mode,
1244          * set idle time-out.
1245          */
1246         REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
1247                   AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
1248                   AR_PHY_WATCHDOG_IDLE_MASK |
1249                   (AR_PHY_WATCHDOG_NON_IDLE_MASK & (idle_count << 2)));
1250
1251         ath_print(common, ATH_DBG_RESET,
1252                   "Enabled BB Watchdog timeout (%u ms)\n",
1253                   idle_tmo_ms);
1254 }
1255
1256 void ar9003_hw_bb_watchdog_read(struct ath_hw *ah)
1257 {
1258         /*
1259          * we want to avoid printing in ISR context so we save the
1260          * watchdog status to be printed later in bottom half context.
1261          */
1262         ah->bb_watchdog_last_status = REG_READ(ah, AR_PHY_WATCHDOG_STATUS);
1263
1264         /*
1265          * the watchdog timer should reset on status read but to be sure
1266          * sure we write 0 to the watchdog status bit.
1267          */
1268         REG_WRITE(ah, AR_PHY_WATCHDOG_STATUS,
1269                   ah->bb_watchdog_last_status & ~AR_PHY_WATCHDOG_STATUS_CLR);
1270 }
1271
1272 void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah)
1273 {
1274         struct ath_common *common = ath9k_hw_common(ah);
1275         u32 status;
1276
1277         if (likely(!(common->debug_mask & ATH_DBG_RESET)))
1278                 return;
1279
1280         status = ah->bb_watchdog_last_status;
1281         ath_print(common, ATH_DBG_RESET,
1282                   "\n==== BB update: BB status=0x%08x ====\n", status);
1283         ath_print(common, ATH_DBG_RESET,
1284                   "** BB state: wd=%u det=%u rdar=%u rOFDM=%d "
1285                   "rCCK=%u tOFDM=%u tCCK=%u agc=%u src=%u **\n",
1286                   MS(status, AR_PHY_WATCHDOG_INFO),
1287                   MS(status, AR_PHY_WATCHDOG_DET_HANG),
1288                   MS(status, AR_PHY_WATCHDOG_RADAR_SM),
1289                   MS(status, AR_PHY_WATCHDOG_RX_OFDM_SM),
1290                   MS(status, AR_PHY_WATCHDOG_RX_CCK_SM),
1291                   MS(status, AR_PHY_WATCHDOG_TX_OFDM_SM),
1292                   MS(status, AR_PHY_WATCHDOG_TX_CCK_SM),
1293                   MS(status, AR_PHY_WATCHDOG_AGC_SM),
1294                   MS(status,AR_PHY_WATCHDOG_SRCH_SM));
1295
1296         ath_print(common, ATH_DBG_RESET,
1297                   "** BB WD cntl: cntl1=0x%08x cntl2=0x%08x **\n",
1298                   REG_READ(ah, AR_PHY_WATCHDOG_CTL_1),
1299                   REG_READ(ah, AR_PHY_WATCHDOG_CTL_2));
1300         ath_print(common, ATH_DBG_RESET,
1301                   "** BB mode: BB_gen_controls=0x%08x **\n",
1302                   REG_READ(ah, AR_PHY_GEN_CTRL));
1303
1304 #define PCT(_field) (common->cc_survey._field * 100 / common->cc_survey.cycles)
1305         if (common->cc_survey.cycles)
1306                 ath_print(common, ATH_DBG_RESET,
1307                           "** BB busy times: rx_clear=%d%%, "
1308                           "rx_frame=%d%%, tx_frame=%d%% **\n",
1309                           PCT(rx_busy), PCT(rx_frame), PCT(tx_frame));
1310
1311         ath_print(common, ATH_DBG_RESET,
1312                   "==== BB update: done ====\n\n");
1313 }
1314 EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info);