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 #include "ar9003_eeprom.h" 21 22 #define AR9300_OFDM_RATES 8 23 #define AR9300_HT_SS_RATES 8 24 #define AR9300_HT_DS_RATES 8 25 #define AR9300_HT_TS_RATES 8 26 27 #define AR9300_11NA_OFDM_SHIFT 0 28 #define AR9300_11NA_HT_SS_SHIFT 8 29 #define AR9300_11NA_HT_DS_SHIFT 16 30 #define AR9300_11NA_HT_TS_SHIFT 24 31 32 #define AR9300_11NG_OFDM_SHIFT 4 33 #define AR9300_11NG_HT_SS_SHIFT 12 34 #define AR9300_11NG_HT_DS_SHIFT 20 35 #define AR9300_11NG_HT_TS_SHIFT 28 36 37 static const int firstep_table[] = 38 /* level: 0 1 2 3 4 5 6 7 8 */ 39 { -4, -2, 0, 2, 4, 6, 8, 10, 12 }; /* lvl 0-8, default 2 */ 40 41 static const int cycpwrThr1_table[] = 42 /* level: 0 1 2 3 4 5 6 7 8 */ 43 { -6, -4, -2, 0, 2, 4, 6, 8 }; /* lvl 0-7, default 3 */ 44 45 /* 46 * register values to turn OFDM weak signal detection OFF 47 */ 48 static const int m1ThreshLow_off = 127; 49 static const int m2ThreshLow_off = 127; 50 static const int m1Thresh_off = 127; 51 static const int m2Thresh_off = 127; 52 static const int m2CountThr_off = 31; 53 static const int m2CountThrLow_off = 63; 54 static const int m1ThreshLowExt_off = 127; 55 static const int m2ThreshLowExt_off = 127; 56 static const int m1ThreshExt_off = 127; 57 static const int m2ThreshExt_off = 127; 58 59 static const u8 ofdm2pwr[] = { 60 ALL_TARGET_LEGACY_6_24, 61 ALL_TARGET_LEGACY_6_24, 62 ALL_TARGET_LEGACY_6_24, 63 ALL_TARGET_LEGACY_6_24, 64 ALL_TARGET_LEGACY_6_24, 65 ALL_TARGET_LEGACY_36, 66 ALL_TARGET_LEGACY_48, 67 ALL_TARGET_LEGACY_54 68 }; 69 70 static const u8 mcs2pwr_ht20[] = { 71 ALL_TARGET_HT20_0_8_16, 72 ALL_TARGET_HT20_1_3_9_11_17_19, 73 ALL_TARGET_HT20_1_3_9_11_17_19, 74 ALL_TARGET_HT20_1_3_9_11_17_19, 75 ALL_TARGET_HT20_4, 76 ALL_TARGET_HT20_5, 77 ALL_TARGET_HT20_6, 78 ALL_TARGET_HT20_7, 79 ALL_TARGET_HT20_0_8_16, 80 ALL_TARGET_HT20_1_3_9_11_17_19, 81 ALL_TARGET_HT20_1_3_9_11_17_19, 82 ALL_TARGET_HT20_1_3_9_11_17_19, 83 ALL_TARGET_HT20_12, 84 ALL_TARGET_HT20_13, 85 ALL_TARGET_HT20_14, 86 ALL_TARGET_HT20_15, 87 ALL_TARGET_HT20_0_8_16, 88 ALL_TARGET_HT20_1_3_9_11_17_19, 89 ALL_TARGET_HT20_1_3_9_11_17_19, 90 ALL_TARGET_HT20_1_3_9_11_17_19, 91 ALL_TARGET_HT20_20, 92 ALL_TARGET_HT20_21, 93 ALL_TARGET_HT20_22, 94 ALL_TARGET_HT20_23 95 }; 96 97 static const u8 mcs2pwr_ht40[] = { 98 ALL_TARGET_HT40_0_8_16, 99 ALL_TARGET_HT40_1_3_9_11_17_19, 100 ALL_TARGET_HT40_1_3_9_11_17_19, 101 ALL_TARGET_HT40_1_3_9_11_17_19, 102 ALL_TARGET_HT40_4, 103 ALL_TARGET_HT40_5, 104 ALL_TARGET_HT40_6, 105 ALL_TARGET_HT40_7, 106 ALL_TARGET_HT40_0_8_16, 107 ALL_TARGET_HT40_1_3_9_11_17_19, 108 ALL_TARGET_HT40_1_3_9_11_17_19, 109 ALL_TARGET_HT40_1_3_9_11_17_19, 110 ALL_TARGET_HT40_12, 111 ALL_TARGET_HT40_13, 112 ALL_TARGET_HT40_14, 113 ALL_TARGET_HT40_15, 114 ALL_TARGET_HT40_0_8_16, 115 ALL_TARGET_HT40_1_3_9_11_17_19, 116 ALL_TARGET_HT40_1_3_9_11_17_19, 117 ALL_TARGET_HT40_1_3_9_11_17_19, 118 ALL_TARGET_HT40_20, 119 ALL_TARGET_HT40_21, 120 ALL_TARGET_HT40_22, 121 ALL_TARGET_HT40_23, 122 }; 123 124 /** 125 * ar9003_hw_set_channel - set channel on single-chip device 126 * @ah: atheros hardware structure 127 * @chan: 128 * 129 * This is the function to change channel on single-chip devices, that is 130 * for AR9300 family of chipsets. 131 * 132 * This function takes the channel value in MHz and sets 133 * hardware channel value. Assumes writes have been enabled to analog bus. 134 * 135 * Actual Expression, 136 * 137 * For 2GHz channel, 138 * Channel Frequency = (3/4) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17) 139 * (freq_ref = 40MHz) 140 * 141 * For 5GHz channel, 142 * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^10) 143 * (freq_ref = 40MHz/(24>>amodeRefSel)) 144 * 145 * For 5GHz channels which are 5MHz spaced, 146 * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17) 147 * (freq_ref = 40MHz) 148 */ 149 static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan) 150 { 151 u16 bMode, fracMode = 0, aModeRefSel = 0; 152 u32 freq, chan_frac, div, channelSel = 0, reg32 = 0; 153 struct chan_centers centers; 154 int loadSynthChannel; 155 156 ath9k_hw_get_channel_centers(ah, chan, ¢ers); 157 freq = centers.synth_center; 158 159 if (freq < 4800) { /* 2 GHz, fractional mode */ 160 if (AR_SREV_9330(ah)) { 161 if (ah->is_clk_25mhz) 162 div = 75; 163 else 164 div = 120; 165 166 channelSel = (freq * 4) / div; 167 chan_frac = (((freq * 4) % div) * 0x20000) / div; 168 channelSel = (channelSel << 17) | chan_frac; 169 } else if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) { 170 /* 171 * freq_ref = 40 / (refdiva >> amoderefsel); 172 * where refdiva=1 and amoderefsel=0 173 * ndiv = ((chan_mhz * 4) / 3) / freq_ref; 174 * chansel = int(ndiv), chanfrac = (ndiv - chansel) * 0x20000 175 */ 176 channelSel = (freq * 4) / 120; 177 chan_frac = (((freq * 4) % 120) * 0x20000) / 120; 178 channelSel = (channelSel << 17) | chan_frac; 179 } else if (AR_SREV_9340(ah)) { 180 if (ah->is_clk_25mhz) { 181 channelSel = (freq * 2) / 75; 182 chan_frac = (((freq * 2) % 75) * 0x20000) / 75; 183 channelSel = (channelSel << 17) | chan_frac; 184 } else { 185 channelSel = CHANSEL_2G(freq) >> 1; 186 } 187 } else if (AR_SREV_9550(ah) || AR_SREV_9531(ah) || 188 AR_SREV_9561(ah)) { 189 if (ah->is_clk_25mhz) 190 div = 75; 191 else 192 div = 120; 193 194 channelSel = (freq * 4) / div; 195 chan_frac = (((freq * 4) % div) * 0x20000) / div; 196 channelSel = (channelSel << 17) | chan_frac; 197 } else { 198 channelSel = CHANSEL_2G(freq); 199 } 200 /* Set to 2G mode */ 201 bMode = 1; 202 } else { 203 if ((AR_SREV_9340(ah) || AR_SREV_9550(ah) || 204 AR_SREV_9531(ah) || AR_SREV_9561(ah)) && 205 ah->is_clk_25mhz) { 206 channelSel = freq / 75; 207 chan_frac = ((freq % 75) * 0x20000) / 75; 208 channelSel = (channelSel << 17) | chan_frac; 209 } else { 210 channelSel = CHANSEL_5G(freq); 211 /* Doubler is ON, so, divide channelSel by 2. */ 212 channelSel >>= 1; 213 } 214 /* Set to 5G mode */ 215 bMode = 0; 216 } 217 218 /* Enable fractional mode for all channels */ 219 fracMode = 1; 220 aModeRefSel = 0; 221 loadSynthChannel = 0; 222 223 reg32 = (bMode << 29); 224 REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32); 225 226 /* Enable Long shift Select for Synthesizer */ 227 REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH4, 228 AR_PHY_SYNTH4_LONG_SHIFT_SELECT, 1); 229 230 /* Program Synth. setting */ 231 reg32 = (channelSel << 2) | (fracMode << 30) | 232 (aModeRefSel << 28) | (loadSynthChannel << 31); 233 REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32); 234 235 /* Toggle Load Synth channel bit */ 236 loadSynthChannel = 1; 237 reg32 = (channelSel << 2) | (fracMode << 30) | 238 (aModeRefSel << 28) | (loadSynthChannel << 31); 239 REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32); 240 241 ah->curchan = chan; 242 243 return 0; 244 } 245 246 /** 247 * ar9003_hw_spur_mitigate_mrc_cck - convert baseband spur frequency 248 * @ah: atheros hardware structure 249 * @chan: 250 * 251 * For single-chip solutions. Converts to baseband spur frequency given the 252 * input channel frequency and compute register settings below. 253 * 254 * Spur mitigation for MRC CCK 255 */ 256 static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah, 257 struct ath9k_channel *chan) 258 { 259 static const u32 spur_freq[4] = { 2420, 2440, 2464, 2480 }; 260 int cur_bb_spur, negative = 0, cck_spur_freq; 261 int i; 262 int range, max_spur_cnts, synth_freq; 263 u8 *spur_fbin_ptr = ar9003_get_spur_chan_ptr(ah, IS_CHAN_2GHZ(chan)); 264 265 /* 266 * Need to verify range +/- 10 MHz in control channel, otherwise spur 267 * is out-of-band and can be ignored. 268 */ 269 270 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) || 271 AR_SREV_9550(ah) || AR_SREV_9561(ah)) { 272 if (spur_fbin_ptr[0] == 0) /* No spur */ 273 return; 274 max_spur_cnts = 5; 275 if (IS_CHAN_HT40(chan)) { 276 range = 19; 277 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL, 278 AR_PHY_GC_DYN2040_PRI_CH) == 0) 279 synth_freq = chan->channel + 10; 280 else 281 synth_freq = chan->channel - 10; 282 } else { 283 range = 10; 284 synth_freq = chan->channel; 285 } 286 } else { 287 range = AR_SREV_9462(ah) ? 5 : 10; 288 max_spur_cnts = 4; 289 synth_freq = chan->channel; 290 } 291 292 for (i = 0; i < max_spur_cnts; i++) { 293 if (AR_SREV_9462(ah) && (i == 0 || i == 3)) 294 continue; 295 296 negative = 0; 297 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) || 298 AR_SREV_9550(ah) || AR_SREV_9561(ah)) 299 cur_bb_spur = ath9k_hw_fbin2freq(spur_fbin_ptr[i], 300 IS_CHAN_2GHZ(chan)); 301 else 302 cur_bb_spur = spur_freq[i]; 303 304 cur_bb_spur -= synth_freq; 305 if (cur_bb_spur < 0) { 306 negative = 1; 307 cur_bb_spur = -cur_bb_spur; 308 } 309 if (cur_bb_spur < range) { 310 cck_spur_freq = (int)((cur_bb_spur << 19) / 11); 311 312 if (negative == 1) 313 cck_spur_freq = -cck_spur_freq; 314 315 cck_spur_freq = cck_spur_freq & 0xfffff; 316 317 REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL, 318 AR_PHY_AGC_CONTROL_YCOK_MAX, 0x7); 319 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT, 320 AR_PHY_CCK_SPUR_MIT_SPUR_RSSI_THR, 0x7f); 321 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT, 322 AR_PHY_CCK_SPUR_MIT_SPUR_FILTER_TYPE, 323 0x2); 324 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT, 325 AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT, 326 0x1); 327 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT, 328 AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ, 329 cck_spur_freq); 330 331 return; 332 } 333 } 334 335 REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL, 336 AR_PHY_AGC_CONTROL_YCOK_MAX, 0x5); 337 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT, 338 AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT, 0x0); 339 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT, 340 AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ, 0x0); 341 } 342 343 /* Clean all spur register fields */ 344 static void ar9003_hw_spur_ofdm_clear(struct ath_hw *ah) 345 { 346 REG_RMW_FIELD(ah, AR_PHY_TIMING4, 347 AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0); 348 REG_RMW_FIELD(ah, AR_PHY_TIMING11, 349 AR_PHY_TIMING11_SPUR_FREQ_SD, 0); 350 REG_RMW_FIELD(ah, AR_PHY_TIMING11, 351 AR_PHY_TIMING11_SPUR_DELTA_PHASE, 0); 352 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, 353 AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, 0); 354 REG_RMW_FIELD(ah, AR_PHY_TIMING11, 355 AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0); 356 REG_RMW_FIELD(ah, AR_PHY_TIMING11, 357 AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0); 358 REG_RMW_FIELD(ah, AR_PHY_TIMING4, 359 AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0); 360 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG, 361 AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 0); 362 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG, 363 AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 0); 364 365 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG, 366 AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0); 367 REG_RMW_FIELD(ah, AR_PHY_TIMING4, 368 AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0); 369 REG_RMW_FIELD(ah, AR_PHY_TIMING4, 370 AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0); 371 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK, 372 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, 0); 373 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A, 374 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, 0); 375 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK, 376 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, 0); 377 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK, 378 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0); 379 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK, 380 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0); 381 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A, 382 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0); 383 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG, 384 AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0); 385 } 386 387 static void ar9003_hw_spur_ofdm(struct ath_hw *ah, 388 int freq_offset, 389 int spur_freq_sd, 390 int spur_delta_phase, 391 int spur_subchannel_sd, 392 int range, 393 int synth_freq) 394 { 395 int mask_index = 0; 396 397 /* OFDM Spur mitigation */ 398 REG_RMW_FIELD(ah, AR_PHY_TIMING4, 399 AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0x1); 400 REG_RMW_FIELD(ah, AR_PHY_TIMING11, 401 AR_PHY_TIMING11_SPUR_FREQ_SD, spur_freq_sd); 402 REG_RMW_FIELD(ah, AR_PHY_TIMING11, 403 AR_PHY_TIMING11_SPUR_DELTA_PHASE, spur_delta_phase); 404 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, 405 AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, spur_subchannel_sd); 406 REG_RMW_FIELD(ah, AR_PHY_TIMING11, 407 AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0x1); 408 409 if (!(AR_SREV_9565(ah) && range == 10 && synth_freq == 2437)) 410 REG_RMW_FIELD(ah, AR_PHY_TIMING11, 411 AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1); 412 413 REG_RMW_FIELD(ah, AR_PHY_TIMING4, 414 AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0x1); 415 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG, 416 AR_PHY_SPUR_REG_SPUR_RSSI_THRESH, 34); 417 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG, 418 AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1); 419 420 if (!AR_SREV_9340(ah) && 421 REG_READ_FIELD(ah, AR_PHY_MODE, 422 AR_PHY_MODE_DYNAMIC) == 0x1) 423 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG, 424 AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1); 425 426 mask_index = (freq_offset << 4) / 5; 427 if (mask_index < 0) 428 mask_index = mask_index - 1; 429 430 mask_index = mask_index & 0x7f; 431 432 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG, 433 AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0x1); 434 REG_RMW_FIELD(ah, AR_PHY_TIMING4, 435 AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0x1); 436 REG_RMW_FIELD(ah, AR_PHY_TIMING4, 437 AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0x1); 438 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK, 439 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, mask_index); 440 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A, 441 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, mask_index); 442 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK, 443 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, mask_index); 444 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK, 445 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0xc); 446 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK, 447 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0xc); 448 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A, 449 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0); 450 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG, 451 AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0xff); 452 } 453 454 static void ar9003_hw_spur_ofdm_9565(struct ath_hw *ah, 455 int freq_offset) 456 { 457 int mask_index = 0; 458 459 mask_index = (freq_offset << 4) / 5; 460 if (mask_index < 0) 461 mask_index = mask_index - 1; 462 463 mask_index = mask_index & 0x7f; 464 465 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK, 466 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_B, 467 mask_index); 468 469 /* A == B */ 470 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_B, 471 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, 472 mask_index); 473 474 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK, 475 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_B, 476 mask_index); 477 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK, 478 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_B, 0xe); 479 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK, 480 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_B, 0xe); 481 482 /* A == B */ 483 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_B, 484 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0); 485 } 486 487 static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah, 488 struct ath9k_channel *chan, 489 int freq_offset, 490 int range, 491 int synth_freq) 492 { 493 int spur_freq_sd = 0; 494 int spur_subchannel_sd = 0; 495 int spur_delta_phase = 0; 496 497 if (IS_CHAN_HT40(chan)) { 498 if (freq_offset < 0) { 499 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL, 500 AR_PHY_GC_DYN2040_PRI_CH) == 0x0) 501 spur_subchannel_sd = 1; 502 else 503 spur_subchannel_sd = 0; 504 505 spur_freq_sd = ((freq_offset + 10) << 9) / 11; 506 507 } else { 508 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL, 509 AR_PHY_GC_DYN2040_PRI_CH) == 0x0) 510 spur_subchannel_sd = 0; 511 else 512 spur_subchannel_sd = 1; 513 514 spur_freq_sd = ((freq_offset - 10) << 9) / 11; 515 516 } 517 518 spur_delta_phase = (freq_offset << 17) / 5; 519 520 } else { 521 spur_subchannel_sd = 0; 522 spur_freq_sd = (freq_offset << 9) /11; 523 spur_delta_phase = (freq_offset << 18) / 5; 524 } 525 526 spur_freq_sd = spur_freq_sd & 0x3ff; 527 spur_delta_phase = spur_delta_phase & 0xfffff; 528 529 ar9003_hw_spur_ofdm(ah, 530 freq_offset, 531 spur_freq_sd, 532 spur_delta_phase, 533 spur_subchannel_sd, 534 range, synth_freq); 535 } 536 537 /* Spur mitigation for OFDM */ 538 static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah, 539 struct ath9k_channel *chan) 540 { 541 int synth_freq; 542 int range = 10; 543 int freq_offset = 0; 544 int mode; 545 u8* spurChansPtr; 546 unsigned int i; 547 struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep; 548 549 if (IS_CHAN_5GHZ(chan)) { 550 spurChansPtr = &(eep->modalHeader5G.spurChans[0]); 551 mode = 0; 552 } 553 else { 554 spurChansPtr = &(eep->modalHeader2G.spurChans[0]); 555 mode = 1; 556 } 557 558 if (spurChansPtr[0] == 0) 559 return; /* No spur in the mode */ 560 561 if (IS_CHAN_HT40(chan)) { 562 range = 19; 563 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL, 564 AR_PHY_GC_DYN2040_PRI_CH) == 0x0) 565 synth_freq = chan->channel - 10; 566 else 567 synth_freq = chan->channel + 10; 568 } else { 569 range = 10; 570 synth_freq = chan->channel; 571 } 572 573 ar9003_hw_spur_ofdm_clear(ah); 574 575 for (i = 0; i < AR_EEPROM_MODAL_SPURS && spurChansPtr[i]; i++) { 576 freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i], mode); 577 freq_offset -= synth_freq; 578 if (abs(freq_offset) < range) { 579 ar9003_hw_spur_ofdm_work(ah, chan, freq_offset, 580 range, synth_freq); 581 582 if (AR_SREV_9565(ah) && (i < 4)) { 583 freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i + 1], 584 mode); 585 freq_offset -= synth_freq; 586 if (abs(freq_offset) < range) 587 ar9003_hw_spur_ofdm_9565(ah, freq_offset); 588 } 589 590 break; 591 } 592 } 593 } 594 595 static void ar9003_hw_spur_mitigate(struct ath_hw *ah, 596 struct ath9k_channel *chan) 597 { 598 if (!AR_SREV_9565(ah)) 599 ar9003_hw_spur_mitigate_mrc_cck(ah, chan); 600 ar9003_hw_spur_mitigate_ofdm(ah, chan); 601 } 602 603 static u32 ar9003_hw_compute_pll_control_soc(struct ath_hw *ah, 604 struct ath9k_channel *chan) 605 { 606 u32 pll; 607 608 pll = SM(0x5, AR_RTC_9300_SOC_PLL_REFDIV); 609 610 if (chan && IS_CHAN_HALF_RATE(chan)) 611 pll |= SM(0x1, AR_RTC_9300_SOC_PLL_CLKSEL); 612 else if (chan && IS_CHAN_QUARTER_RATE(chan)) 613 pll |= SM(0x2, AR_RTC_9300_SOC_PLL_CLKSEL); 614 615 pll |= SM(0x2c, AR_RTC_9300_SOC_PLL_DIV_INT); 616 617 return pll; 618 } 619 620 static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah, 621 struct ath9k_channel *chan) 622 { 623 u32 pll; 624 625 pll = SM(0x5, AR_RTC_9300_PLL_REFDIV); 626 627 if (chan && IS_CHAN_HALF_RATE(chan)) 628 pll |= SM(0x1, AR_RTC_9300_PLL_CLKSEL); 629 else if (chan && IS_CHAN_QUARTER_RATE(chan)) 630 pll |= SM(0x2, AR_RTC_9300_PLL_CLKSEL); 631 632 pll |= SM(0x2c, AR_RTC_9300_PLL_DIV); 633 634 return pll; 635 } 636 637 static void ar9003_hw_set_channel_regs(struct ath_hw *ah, 638 struct ath9k_channel *chan) 639 { 640 u32 phymode; 641 u32 enableDacFifo = 0; 642 643 enableDacFifo = 644 (REG_READ(ah, AR_PHY_GEN_CTRL) & AR_PHY_GC_ENABLE_DAC_FIFO); 645 646 /* Enable 11n HT, 20 MHz */ 647 phymode = AR_PHY_GC_HT_EN | AR_PHY_GC_SHORT_GI_40 | enableDacFifo; 648 649 if (!AR_SREV_9561(ah)) 650 phymode |= AR_PHY_GC_SINGLE_HT_LTF1; 651 652 /* Configure baseband for dynamic 20/40 operation */ 653 if (IS_CHAN_HT40(chan)) { 654 phymode |= AR_PHY_GC_DYN2040_EN; 655 /* Configure control (primary) channel at +-10MHz */ 656 if (IS_CHAN_HT40PLUS(chan)) 657 phymode |= AR_PHY_GC_DYN2040_PRI_CH; 658 659 } 660 661 /* make sure we preserve INI settings */ 662 phymode |= REG_READ(ah, AR_PHY_GEN_CTRL); 663 /* turn off Green Field detection for STA for now */ 664 phymode &= ~AR_PHY_GC_GF_DETECT_EN; 665 666 REG_WRITE(ah, AR_PHY_GEN_CTRL, phymode); 667 668 /* Configure MAC for 20/40 operation */ 669 ath9k_hw_set11nmac2040(ah, chan); 670 671 /* global transmit timeout (25 TUs default)*/ 672 REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S); 673 /* carrier sense timeout */ 674 REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S); 675 } 676 677 static void ar9003_hw_init_bb(struct ath_hw *ah, 678 struct ath9k_channel *chan) 679 { 680 u32 synthDelay; 681 682 /* 683 * Wait for the frequency synth to settle (synth goes on 684 * via AR_PHY_ACTIVE_EN). Read the phy active delay register. 685 * Value is in 100ns increments. 686 */ 687 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY; 688 689 /* Activate the PHY (includes baseband activate + synthesizer on) */ 690 REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); 691 ath9k_hw_synth_delay(ah, chan, synthDelay); 692 } 693 694 void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx) 695 { 696 if (ah->caps.tx_chainmask == 5 || ah->caps.rx_chainmask == 5) 697 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP, 698 AR_PHY_SWAP_ALT_CHAIN); 699 700 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx); 701 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx); 702 703 if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && (tx == 0x7)) 704 tx = 3; 705 706 REG_WRITE(ah, AR_SELFGEN_MASK, tx); 707 } 708 709 /* 710 * Override INI values with chip specific configuration. 711 */ 712 static void ar9003_hw_override_ini(struct ath_hw *ah) 713 { 714 u32 val; 715 716 /* 717 * Set the RX_ABORT and RX_DIS and clear it only after 718 * RXE is set for MAC. This prevents frames with 719 * corrupted descriptor status. 720 */ 721 REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT)); 722 723 /* 724 * For AR9280 and above, there is a new feature that allows 725 * Multicast search based on both MAC Address and Key ID. By default, 726 * this feature is enabled. But since the driver is not using this 727 * feature, we switch it off; otherwise multicast search based on 728 * MAC addr only will fail. 729 */ 730 val = REG_READ(ah, AR_PCU_MISC_MODE2) & (~AR_ADHOC_MCAST_KEYID_ENABLE); 731 val |= AR_AGG_WEP_ENABLE_FIX | 732 AR_AGG_WEP_ENABLE | 733 AR_PCU_MISC_MODE2_CFP_IGNORE; 734 REG_WRITE(ah, AR_PCU_MISC_MODE2, val); 735 736 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) { 737 REG_WRITE(ah, AR_GLB_SWREG_DISCONT_MODE, 738 AR_GLB_SWREG_DISCONT_EN_BT_WLAN); 739 740 if (REG_READ_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_0, 741 AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL)) 742 ah->enabled_cals |= TX_IQ_CAL; 743 else 744 ah->enabled_cals &= ~TX_IQ_CAL; 745 746 } 747 748 if (REG_READ(ah, AR_PHY_CL_CAL_CTL) & AR_PHY_CL_CAL_ENABLE) 749 ah->enabled_cals |= TX_CL_CAL; 750 else 751 ah->enabled_cals &= ~TX_CL_CAL; 752 753 if (AR_SREV_9340(ah) || AR_SREV_9531(ah) || AR_SREV_9550(ah) || 754 AR_SREV_9561(ah)) { 755 if (ah->is_clk_25mhz) { 756 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x17c << 1); 757 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f3d7); 758 REG_WRITE(ah, AR_SLP32_INC, 0x0001e7ae); 759 } else { 760 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x261 << 1); 761 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f400); 762 REG_WRITE(ah, AR_SLP32_INC, 0x0001e800); 763 } 764 udelay(100); 765 } 766 } 767 768 static void ar9003_hw_prog_ini(struct ath_hw *ah, 769 struct ar5416IniArray *iniArr, 770 int column) 771 { 772 unsigned int i, regWrites = 0; 773 774 /* New INI format: Array may be undefined (pre, core, post arrays) */ 775 if (!iniArr->ia_array) 776 return; 777 778 /* 779 * New INI format: Pre, core, and post arrays for a given subsystem 780 * may be modal (> 2 columns) or non-modal (2 columns). Determine if 781 * the array is non-modal and force the column to 1. 782 */ 783 if (column >= iniArr->ia_columns) 784 column = 1; 785 786 for (i = 0; i < iniArr->ia_rows; i++) { 787 u32 reg = INI_RA(iniArr, i, 0); 788 u32 val = INI_RA(iniArr, i, column); 789 790 REG_WRITE(ah, reg, val); 791 792 DO_DELAY(regWrites); 793 } 794 } 795 796 static int ar9550_hw_get_modes_txgain_index(struct ath_hw *ah, 797 struct ath9k_channel *chan) 798 { 799 int ret; 800 801 if (IS_CHAN_2GHZ(chan)) { 802 if (IS_CHAN_HT40(chan)) 803 return 7; 804 else 805 return 8; 806 } 807 808 if (chan->channel <= 5350) 809 ret = 1; 810 else if ((chan->channel > 5350) && (chan->channel <= 5600)) 811 ret = 3; 812 else 813 ret = 5; 814 815 if (IS_CHAN_HT40(chan)) 816 ret++; 817 818 return ret; 819 } 820 821 static int ar9561_hw_get_modes_txgain_index(struct ath_hw *ah, 822 struct ath9k_channel *chan) 823 { 824 if (IS_CHAN_2GHZ(chan)) { 825 if (IS_CHAN_HT40(chan)) 826 return 1; 827 else 828 return 2; 829 } 830 831 return 0; 832 } 833 834 static void ar9003_doubler_fix(struct ath_hw *ah) 835 { 836 if (AR_SREV_9300(ah) || AR_SREV_9580(ah) || AR_SREV_9550(ah)) { 837 REG_RMW(ah, AR_PHY_65NM_CH0_RXTX2, 838 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S | 839 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S, 0); 840 REG_RMW(ah, AR_PHY_65NM_CH1_RXTX2, 841 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S | 842 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S, 0); 843 REG_RMW(ah, AR_PHY_65NM_CH2_RXTX2, 844 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S | 845 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S, 0); 846 847 udelay(200); 848 849 REG_CLR_BIT(ah, AR_PHY_65NM_CH0_RXTX2, 850 AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK); 851 REG_CLR_BIT(ah, AR_PHY_65NM_CH1_RXTX2, 852 AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK); 853 REG_CLR_BIT(ah, AR_PHY_65NM_CH2_RXTX2, 854 AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK); 855 856 udelay(1); 857 858 REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_RXTX2, 859 AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK, 1); 860 REG_RMW_FIELD(ah, AR_PHY_65NM_CH1_RXTX2, 861 AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK, 1); 862 REG_RMW_FIELD(ah, AR_PHY_65NM_CH2_RXTX2, 863 AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK, 1); 864 865 udelay(200); 866 867 REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH12, 868 AR_PHY_65NM_CH0_SYNTH12_VREFMUL3, 0xf); 869 870 REG_RMW(ah, AR_PHY_65NM_CH0_RXTX2, 0, 871 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S | 872 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S); 873 REG_RMW(ah, AR_PHY_65NM_CH1_RXTX2, 0, 874 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S | 875 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S); 876 REG_RMW(ah, AR_PHY_65NM_CH2_RXTX2, 0, 877 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S | 878 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S); 879 } 880 } 881 882 static int ar9003_hw_process_ini(struct ath_hw *ah, 883 struct ath9k_channel *chan) 884 { 885 unsigned int regWrites = 0, i; 886 u32 modesIndex; 887 888 if (IS_CHAN_5GHZ(chan)) 889 modesIndex = IS_CHAN_HT40(chan) ? 2 : 1; 890 else 891 modesIndex = IS_CHAN_HT40(chan) ? 3 : 4; 892 893 /* 894 * SOC, MAC, BB, RADIO initvals. 895 */ 896 for (i = 0; i < ATH_INI_NUM_SPLIT; i++) { 897 ar9003_hw_prog_ini(ah, &ah->iniSOC[i], modesIndex); 898 ar9003_hw_prog_ini(ah, &ah->iniMac[i], modesIndex); 899 ar9003_hw_prog_ini(ah, &ah->iniBB[i], modesIndex); 900 ar9003_hw_prog_ini(ah, &ah->iniRadio[i], modesIndex); 901 if (i == ATH_INI_POST && AR_SREV_9462_20_OR_LATER(ah)) 902 ar9003_hw_prog_ini(ah, 903 &ah->ini_radio_post_sys2ant, 904 modesIndex); 905 } 906 907 ar9003_doubler_fix(ah); 908 909 /* 910 * RXGAIN initvals. 911 */ 912 REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites); 913 914 if (AR_SREV_9462_20_OR_LATER(ah)) { 915 /* 916 * CUS217 mix LNA mode. 917 */ 918 if (ar9003_hw_get_rx_gain_idx(ah) == 2) { 919 REG_WRITE_ARRAY(&ah->ini_modes_rxgain_bb_core, 920 1, regWrites); 921 REG_WRITE_ARRAY(&ah->ini_modes_rxgain_bb_postamble, 922 modesIndex, regWrites); 923 } 924 925 /* 926 * 5G-XLNA 927 */ 928 if ((ar9003_hw_get_rx_gain_idx(ah) == 2) || 929 (ar9003_hw_get_rx_gain_idx(ah) == 3)) { 930 REG_WRITE_ARRAY(&ah->ini_modes_rxgain_xlna, 931 modesIndex, regWrites); 932 } 933 } 934 935 if (AR_SREV_9550(ah) || AR_SREV_9561(ah)) 936 REG_WRITE_ARRAY(&ah->ini_modes_rx_gain_bounds, modesIndex, 937 regWrites); 938 939 if (AR_SREV_9561(ah) && (ar9003_hw_get_rx_gain_idx(ah) == 0)) 940 REG_WRITE_ARRAY(&ah->ini_modes_rxgain_xlna, 941 modesIndex, regWrites); 942 /* 943 * TXGAIN initvals. 944 */ 945 if (AR_SREV_9550(ah) || AR_SREV_9531(ah) || AR_SREV_9561(ah)) { 946 int modes_txgain_index = 1; 947 948 if (AR_SREV_9550(ah)) 949 modes_txgain_index = ar9550_hw_get_modes_txgain_index(ah, chan); 950 951 if (AR_SREV_9561(ah)) 952 modes_txgain_index = 953 ar9561_hw_get_modes_txgain_index(ah, chan); 954 955 if (modes_txgain_index < 0) 956 return -EINVAL; 957 958 REG_WRITE_ARRAY(&ah->iniModesTxGain, modes_txgain_index, 959 regWrites); 960 } else { 961 REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites); 962 } 963 964 /* 965 * For 5GHz channels requiring Fast Clock, apply 966 * different modal values. 967 */ 968 if (IS_CHAN_A_FAST_CLOCK(ah, chan)) 969 REG_WRITE_ARRAY(&ah->iniModesFastClock, 970 modesIndex, regWrites); 971 972 /* 973 * Clock frequency initvals. 974 */ 975 REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites); 976 977 /* 978 * JAPAN regulatory. 979 */ 980 if (chan->channel == 2484) { 981 ar9003_hw_prog_ini(ah, &ah->iniCckfirJapan2484, 1); 982 983 if (AR_SREV_9531(ah)) 984 REG_RMW_FIELD(ah, AR_PHY_FCAL_2_0, 985 AR_PHY_FLC_PWR_THRESH, 0); 986 } 987 988 ah->modes_index = modesIndex; 989 ar9003_hw_override_ini(ah); 990 ar9003_hw_set_channel_regs(ah, chan); 991 ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask); 992 ath9k_hw_apply_txpower(ah, chan, false); 993 994 return 0; 995 } 996 997 static void ar9003_hw_set_rfmode(struct ath_hw *ah, 998 struct ath9k_channel *chan) 999 { 1000 u32 rfMode = 0; 1001 1002 if (chan == NULL) 1003 return; 1004 1005 if (IS_CHAN_2GHZ(chan)) 1006 rfMode |= AR_PHY_MODE_DYNAMIC; 1007 else 1008 rfMode |= AR_PHY_MODE_OFDM; 1009 1010 if (IS_CHAN_A_FAST_CLOCK(ah, chan)) 1011 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE); 1012 1013 if (IS_CHAN_HALF_RATE(chan) || IS_CHAN_QUARTER_RATE(chan)) 1014 REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL, 1015 AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW, 3); 1016 1017 REG_WRITE(ah, AR_PHY_MODE, rfMode); 1018 } 1019 1020 static void ar9003_hw_mark_phy_inactive(struct ath_hw *ah) 1021 { 1022 REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS); 1023 } 1024 1025 static void ar9003_hw_set_delta_slope(struct ath_hw *ah, 1026 struct ath9k_channel *chan) 1027 { 1028 u32 coef_scaled, ds_coef_exp, ds_coef_man; 1029 u32 clockMhzScaled = 0x64000000; 1030 struct chan_centers centers; 1031 1032 /* 1033 * half and quarter rate can divide the scaled clock by 2 or 4 1034 * scale for selected channel bandwidth 1035 */ 1036 if (IS_CHAN_HALF_RATE(chan)) 1037 clockMhzScaled = clockMhzScaled >> 1; 1038 else if (IS_CHAN_QUARTER_RATE(chan)) 1039 clockMhzScaled = clockMhzScaled >> 2; 1040 1041 /* 1042 * ALGO -> coef = 1e8/fcarrier*fclock/40; 1043 * scaled coef to provide precision for this floating calculation 1044 */ 1045 ath9k_hw_get_channel_centers(ah, chan, ¢ers); 1046 coef_scaled = clockMhzScaled / centers.synth_center; 1047 1048 ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man, 1049 &ds_coef_exp); 1050 1051 REG_RMW_FIELD(ah, AR_PHY_TIMING3, 1052 AR_PHY_TIMING3_DSC_MAN, ds_coef_man); 1053 REG_RMW_FIELD(ah, AR_PHY_TIMING3, 1054 AR_PHY_TIMING3_DSC_EXP, ds_coef_exp); 1055 1056 /* 1057 * For Short GI, 1058 * scaled coeff is 9/10 that of normal coeff 1059 */ 1060 coef_scaled = (9 * coef_scaled) / 10; 1061 1062 ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man, 1063 &ds_coef_exp); 1064 1065 /* for short gi */ 1066 REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA, 1067 AR_PHY_SGI_DSC_MAN, ds_coef_man); 1068 REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA, 1069 AR_PHY_SGI_DSC_EXP, ds_coef_exp); 1070 } 1071 1072 static bool ar9003_hw_rfbus_req(struct ath_hw *ah) 1073 { 1074 REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN); 1075 return ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN, 1076 AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT); 1077 } 1078 1079 /* 1080 * Wait for the frequency synth to settle (synth goes on via PHY_ACTIVE_EN). 1081 * Read the phy active delay register. Value is in 100ns increments. 1082 */ 1083 static void ar9003_hw_rfbus_done(struct ath_hw *ah) 1084 { 1085 u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY; 1086 1087 ath9k_hw_synth_delay(ah, ah->curchan, synthDelay); 1088 1089 REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0); 1090 } 1091 1092 static bool ar9003_hw_ani_control(struct ath_hw *ah, 1093 enum ath9k_ani_cmd cmd, int param) 1094 { 1095 struct ath_common *common = ath9k_hw_common(ah); 1096 struct ath9k_channel *chan = ah->curchan; 1097 struct ar5416AniState *aniState = &ah->ani; 1098 int m1ThreshLow, m2ThreshLow; 1099 int m1Thresh, m2Thresh; 1100 int m2CountThr, m2CountThrLow; 1101 int m1ThreshLowExt, m2ThreshLowExt; 1102 int m1ThreshExt, m2ThreshExt; 1103 s32 value, value2; 1104 1105 switch (cmd & ah->ani_function) { 1106 case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{ 1107 /* 1108 * on == 1 means ofdm weak signal detection is ON 1109 * on == 1 is the default, for less noise immunity 1110 * 1111 * on == 0 means ofdm weak signal detection is OFF 1112 * on == 0 means more noise imm 1113 */ 1114 u32 on = param ? 1 : 0; 1115 1116 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) 1117 goto skip_ws_det; 1118 1119 m1ThreshLow = on ? 1120 aniState->iniDef.m1ThreshLow : m1ThreshLow_off; 1121 m2ThreshLow = on ? 1122 aniState->iniDef.m2ThreshLow : m2ThreshLow_off; 1123 m1Thresh = on ? 1124 aniState->iniDef.m1Thresh : m1Thresh_off; 1125 m2Thresh = on ? 1126 aniState->iniDef.m2Thresh : m2Thresh_off; 1127 m2CountThr = on ? 1128 aniState->iniDef.m2CountThr : m2CountThr_off; 1129 m2CountThrLow = on ? 1130 aniState->iniDef.m2CountThrLow : m2CountThrLow_off; 1131 m1ThreshLowExt = on ? 1132 aniState->iniDef.m1ThreshLowExt : m1ThreshLowExt_off; 1133 m2ThreshLowExt = on ? 1134 aniState->iniDef.m2ThreshLowExt : m2ThreshLowExt_off; 1135 m1ThreshExt = on ? 1136 aniState->iniDef.m1ThreshExt : m1ThreshExt_off; 1137 m2ThreshExt = on ? 1138 aniState->iniDef.m2ThreshExt : m2ThreshExt_off; 1139 1140 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW, 1141 AR_PHY_SFCORR_LOW_M1_THRESH_LOW, 1142 m1ThreshLow); 1143 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW, 1144 AR_PHY_SFCORR_LOW_M2_THRESH_LOW, 1145 m2ThreshLow); 1146 REG_RMW_FIELD(ah, AR_PHY_SFCORR, 1147 AR_PHY_SFCORR_M1_THRESH, 1148 m1Thresh); 1149 REG_RMW_FIELD(ah, AR_PHY_SFCORR, 1150 AR_PHY_SFCORR_M2_THRESH, 1151 m2Thresh); 1152 REG_RMW_FIELD(ah, AR_PHY_SFCORR, 1153 AR_PHY_SFCORR_M2COUNT_THR, 1154 m2CountThr); 1155 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW, 1156 AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW, 1157 m2CountThrLow); 1158 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, 1159 AR_PHY_SFCORR_EXT_M1_THRESH_LOW, 1160 m1ThreshLowExt); 1161 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, 1162 AR_PHY_SFCORR_EXT_M2_THRESH_LOW, 1163 m2ThreshLowExt); 1164 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, 1165 AR_PHY_SFCORR_EXT_M1_THRESH, 1166 m1ThreshExt); 1167 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, 1168 AR_PHY_SFCORR_EXT_M2_THRESH, 1169 m2ThreshExt); 1170 skip_ws_det: 1171 if (on) 1172 REG_SET_BIT(ah, AR_PHY_SFCORR_LOW, 1173 AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW); 1174 else 1175 REG_CLR_BIT(ah, AR_PHY_SFCORR_LOW, 1176 AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW); 1177 1178 if (on != aniState->ofdmWeakSigDetect) { 1179 ath_dbg(common, ANI, 1180 "** ch %d: ofdm weak signal: %s=>%s\n", 1181 chan->channel, 1182 aniState->ofdmWeakSigDetect ? 1183 "on" : "off", 1184 on ? "on" : "off"); 1185 if (on) 1186 ah->stats.ast_ani_ofdmon++; 1187 else 1188 ah->stats.ast_ani_ofdmoff++; 1189 aniState->ofdmWeakSigDetect = on; 1190 } 1191 break; 1192 } 1193 case ATH9K_ANI_FIRSTEP_LEVEL:{ 1194 u32 level = param; 1195 1196 if (level >= ARRAY_SIZE(firstep_table)) { 1197 ath_dbg(common, ANI, 1198 "ATH9K_ANI_FIRSTEP_LEVEL: level out of range (%u > %zu)\n", 1199 level, ARRAY_SIZE(firstep_table)); 1200 return false; 1201 } 1202 1203 /* 1204 * make register setting relative to default 1205 * from INI file & cap value 1206 */ 1207 value = firstep_table[level] - 1208 firstep_table[ATH9K_ANI_FIRSTEP_LVL] + 1209 aniState->iniDef.firstep; 1210 if (value < ATH9K_SIG_FIRSTEP_SETTING_MIN) 1211 value = ATH9K_SIG_FIRSTEP_SETTING_MIN; 1212 if (value > ATH9K_SIG_FIRSTEP_SETTING_MAX) 1213 value = ATH9K_SIG_FIRSTEP_SETTING_MAX; 1214 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG, 1215 AR_PHY_FIND_SIG_FIRSTEP, 1216 value); 1217 /* 1218 * we need to set first step low register too 1219 * make register setting relative to default 1220 * from INI file & cap value 1221 */ 1222 value2 = firstep_table[level] - 1223 firstep_table[ATH9K_ANI_FIRSTEP_LVL] + 1224 aniState->iniDef.firstepLow; 1225 if (value2 < ATH9K_SIG_FIRSTEP_SETTING_MIN) 1226 value2 = ATH9K_SIG_FIRSTEP_SETTING_MIN; 1227 if (value2 > ATH9K_SIG_FIRSTEP_SETTING_MAX) 1228 value2 = ATH9K_SIG_FIRSTEP_SETTING_MAX; 1229 1230 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW, 1231 AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW, value2); 1232 1233 if (level != aniState->firstepLevel) { 1234 ath_dbg(common, ANI, 1235 "** ch %d: level %d=>%d[def:%d] firstep[level]=%d ini=%d\n", 1236 chan->channel, 1237 aniState->firstepLevel, 1238 level, 1239 ATH9K_ANI_FIRSTEP_LVL, 1240 value, 1241 aniState->iniDef.firstep); 1242 ath_dbg(common, ANI, 1243 "** ch %d: level %d=>%d[def:%d] firstep_low[level]=%d ini=%d\n", 1244 chan->channel, 1245 aniState->firstepLevel, 1246 level, 1247 ATH9K_ANI_FIRSTEP_LVL, 1248 value2, 1249 aniState->iniDef.firstepLow); 1250 if (level > aniState->firstepLevel) 1251 ah->stats.ast_ani_stepup++; 1252 else if (level < aniState->firstepLevel) 1253 ah->stats.ast_ani_stepdown++; 1254 aniState->firstepLevel = level; 1255 } 1256 break; 1257 } 1258 case ATH9K_ANI_SPUR_IMMUNITY_LEVEL:{ 1259 u32 level = param; 1260 1261 if (level >= ARRAY_SIZE(cycpwrThr1_table)) { 1262 ath_dbg(common, ANI, 1263 "ATH9K_ANI_SPUR_IMMUNITY_LEVEL: level out of range (%u > %zu)\n", 1264 level, ARRAY_SIZE(cycpwrThr1_table)); 1265 return false; 1266 } 1267 /* 1268 * make register setting relative to default 1269 * from INI file & cap value 1270 */ 1271 value = cycpwrThr1_table[level] - 1272 cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL] + 1273 aniState->iniDef.cycpwrThr1; 1274 if (value < ATH9K_SIG_SPUR_IMM_SETTING_MIN) 1275 value = ATH9K_SIG_SPUR_IMM_SETTING_MIN; 1276 if (value > ATH9K_SIG_SPUR_IMM_SETTING_MAX) 1277 value = ATH9K_SIG_SPUR_IMM_SETTING_MAX; 1278 REG_RMW_FIELD(ah, AR_PHY_TIMING5, 1279 AR_PHY_TIMING5_CYCPWR_THR1, 1280 value); 1281 1282 /* 1283 * set AR_PHY_EXT_CCA for extension channel 1284 * make register setting relative to default 1285 * from INI file & cap value 1286 */ 1287 value2 = cycpwrThr1_table[level] - 1288 cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL] + 1289 aniState->iniDef.cycpwrThr1Ext; 1290 if (value2 < ATH9K_SIG_SPUR_IMM_SETTING_MIN) 1291 value2 = ATH9K_SIG_SPUR_IMM_SETTING_MIN; 1292 if (value2 > ATH9K_SIG_SPUR_IMM_SETTING_MAX) 1293 value2 = ATH9K_SIG_SPUR_IMM_SETTING_MAX; 1294 REG_RMW_FIELD(ah, AR_PHY_EXT_CCA, 1295 AR_PHY_EXT_CYCPWR_THR1, value2); 1296 1297 if (level != aniState->spurImmunityLevel) { 1298 ath_dbg(common, ANI, 1299 "** ch %d: level %d=>%d[def:%d] cycpwrThr1[level]=%d ini=%d\n", 1300 chan->channel, 1301 aniState->spurImmunityLevel, 1302 level, 1303 ATH9K_ANI_SPUR_IMMUNE_LVL, 1304 value, 1305 aniState->iniDef.cycpwrThr1); 1306 ath_dbg(common, ANI, 1307 "** ch %d: level %d=>%d[def:%d] cycpwrThr1Ext[level]=%d ini=%d\n", 1308 chan->channel, 1309 aniState->spurImmunityLevel, 1310 level, 1311 ATH9K_ANI_SPUR_IMMUNE_LVL, 1312 value2, 1313 aniState->iniDef.cycpwrThr1Ext); 1314 if (level > aniState->spurImmunityLevel) 1315 ah->stats.ast_ani_spurup++; 1316 else if (level < aniState->spurImmunityLevel) 1317 ah->stats.ast_ani_spurdown++; 1318 aniState->spurImmunityLevel = level; 1319 } 1320 break; 1321 } 1322 case ATH9K_ANI_MRC_CCK:{ 1323 /* 1324 * is_on == 1 means MRC CCK ON (default, less noise imm) 1325 * is_on == 0 means MRC CCK is OFF (more noise imm) 1326 */ 1327 bool is_on = param ? 1 : 0; 1328 1329 if (ah->caps.rx_chainmask == 1) 1330 break; 1331 1332 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL, 1333 AR_PHY_MRC_CCK_ENABLE, is_on); 1334 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL, 1335 AR_PHY_MRC_CCK_MUX_REG, is_on); 1336 if (is_on != aniState->mrcCCK) { 1337 ath_dbg(common, ANI, "** ch %d: MRC CCK: %s=>%s\n", 1338 chan->channel, 1339 aniState->mrcCCK ? "on" : "off", 1340 is_on ? "on" : "off"); 1341 if (is_on) 1342 ah->stats.ast_ani_ccklow++; 1343 else 1344 ah->stats.ast_ani_cckhigh++; 1345 aniState->mrcCCK = is_on; 1346 } 1347 break; 1348 } 1349 default: 1350 ath_dbg(common, ANI, "invalid cmd %u\n", cmd); 1351 return false; 1352 } 1353 1354 ath_dbg(common, ANI, 1355 "ANI parameters: SI=%d, ofdmWS=%s FS=%d MRCcck=%s listenTime=%d ofdmErrs=%d cckErrs=%d\n", 1356 aniState->spurImmunityLevel, 1357 aniState->ofdmWeakSigDetect ? "on" : "off", 1358 aniState->firstepLevel, 1359 aniState->mrcCCK ? "on" : "off", 1360 aniState->listenTime, 1361 aniState->ofdmPhyErrCount, 1362 aniState->cckPhyErrCount); 1363 return true; 1364 } 1365 1366 static void ar9003_hw_do_getnf(struct ath_hw *ah, 1367 int16_t nfarray[NUM_NF_READINGS]) 1368 { 1369 #define AR_PHY_CH_MINCCA_PWR 0x1FF00000 1370 #define AR_PHY_CH_MINCCA_PWR_S 20 1371 #define AR_PHY_CH_EXT_MINCCA_PWR 0x01FF0000 1372 #define AR_PHY_CH_EXT_MINCCA_PWR_S 16 1373 1374 int16_t nf; 1375 int i; 1376 1377 for (i = 0; i < AR9300_MAX_CHAINS; i++) { 1378 if (ah->rxchainmask & BIT(i)) { 1379 nf = MS(REG_READ(ah, ah->nf_regs[i]), 1380 AR_PHY_CH_MINCCA_PWR); 1381 nfarray[i] = sign_extend32(nf, 8); 1382 1383 if (IS_CHAN_HT40(ah->curchan)) { 1384 u8 ext_idx = AR9300_MAX_CHAINS + i; 1385 1386 nf = MS(REG_READ(ah, ah->nf_regs[ext_idx]), 1387 AR_PHY_CH_EXT_MINCCA_PWR); 1388 nfarray[ext_idx] = sign_extend32(nf, 8); 1389 } 1390 } 1391 } 1392 } 1393 1394 static void ar9003_hw_set_nf_limits(struct ath_hw *ah) 1395 { 1396 ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ; 1397 ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ; 1398 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ; 1399 ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ; 1400 ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ; 1401 ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9300_5GHZ; 1402 1403 if (AR_SREV_9330(ah)) 1404 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9330_2GHZ; 1405 1406 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) { 1407 ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_2GHZ; 1408 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9462_2GHZ; 1409 ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_5GHZ; 1410 ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9462_5GHZ; 1411 } 1412 } 1413 1414 /* 1415 * Initialize the ANI register values with default (ini) values. 1416 * This routine is called during a (full) hardware reset after 1417 * all the registers are initialised from the INI. 1418 */ 1419 static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah) 1420 { 1421 struct ar5416AniState *aniState; 1422 struct ath_common *common = ath9k_hw_common(ah); 1423 struct ath9k_channel *chan = ah->curchan; 1424 struct ath9k_ani_default *iniDef; 1425 u32 val; 1426 1427 aniState = &ah->ani; 1428 iniDef = &aniState->iniDef; 1429 1430 ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz\n", 1431 ah->hw_version.macVersion, 1432 ah->hw_version.macRev, 1433 ah->opmode, 1434 chan->channel); 1435 1436 val = REG_READ(ah, AR_PHY_SFCORR); 1437 iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH); 1438 iniDef->m2Thresh = MS(val, AR_PHY_SFCORR_M2_THRESH); 1439 iniDef->m2CountThr = MS(val, AR_PHY_SFCORR_M2COUNT_THR); 1440 1441 val = REG_READ(ah, AR_PHY_SFCORR_LOW); 1442 iniDef->m1ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M1_THRESH_LOW); 1443 iniDef->m2ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M2_THRESH_LOW); 1444 iniDef->m2CountThrLow = MS(val, AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW); 1445 1446 val = REG_READ(ah, AR_PHY_SFCORR_EXT); 1447 iniDef->m1ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH); 1448 iniDef->m2ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH); 1449 iniDef->m1ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH_LOW); 1450 iniDef->m2ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH_LOW); 1451 iniDef->firstep = REG_READ_FIELD(ah, 1452 AR_PHY_FIND_SIG, 1453 AR_PHY_FIND_SIG_FIRSTEP); 1454 iniDef->firstepLow = REG_READ_FIELD(ah, 1455 AR_PHY_FIND_SIG_LOW, 1456 AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW); 1457 iniDef->cycpwrThr1 = REG_READ_FIELD(ah, 1458 AR_PHY_TIMING5, 1459 AR_PHY_TIMING5_CYCPWR_THR1); 1460 iniDef->cycpwrThr1Ext = REG_READ_FIELD(ah, 1461 AR_PHY_EXT_CCA, 1462 AR_PHY_EXT_CYCPWR_THR1); 1463 1464 /* these levels just got reset to defaults by the INI */ 1465 aniState->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL; 1466 aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL; 1467 aniState->ofdmWeakSigDetect = true; 1468 aniState->mrcCCK = true; 1469 } 1470 1471 static void ar9003_hw_set_radar_params(struct ath_hw *ah, 1472 struct ath_hw_radar_conf *conf) 1473 { 1474 unsigned int regWrites = 0; 1475 u32 radar_0 = 0, radar_1; 1476 1477 if (!conf) { 1478 REG_CLR_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_ENA); 1479 return; 1480 } 1481 1482 radar_0 |= AR_PHY_RADAR_0_ENA | AR_PHY_RADAR_0_FFT_ENA; 1483 radar_0 |= SM(conf->fir_power, AR_PHY_RADAR_0_FIRPWR); 1484 radar_0 |= SM(conf->radar_rssi, AR_PHY_RADAR_0_RRSSI); 1485 radar_0 |= SM(conf->pulse_height, AR_PHY_RADAR_0_HEIGHT); 1486 radar_0 |= SM(conf->pulse_rssi, AR_PHY_RADAR_0_PRSSI); 1487 radar_0 |= SM(conf->pulse_inband, AR_PHY_RADAR_0_INBAND); 1488 1489 radar_1 = REG_READ(ah, AR_PHY_RADAR_1); 1490 radar_1 &= ~(AR_PHY_RADAR_1_MAXLEN | AR_PHY_RADAR_1_RELSTEP_THRESH | 1491 AR_PHY_RADAR_1_RELPWR_THRESH); 1492 radar_1 |= AR_PHY_RADAR_1_MAX_RRSSI; 1493 radar_1 |= AR_PHY_RADAR_1_BLOCK_CHECK; 1494 radar_1 |= SM(conf->pulse_maxlen, AR_PHY_RADAR_1_MAXLEN); 1495 radar_1 |= SM(conf->pulse_inband_step, AR_PHY_RADAR_1_RELSTEP_THRESH); 1496 radar_1 |= SM(conf->radar_inband, AR_PHY_RADAR_1_RELPWR_THRESH); 1497 1498 REG_WRITE(ah, AR_PHY_RADAR_0, radar_0); 1499 REG_WRITE(ah, AR_PHY_RADAR_1, radar_1); 1500 if (conf->ext_channel) 1501 REG_SET_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA); 1502 else 1503 REG_CLR_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA); 1504 1505 if (AR_SREV_9300(ah) || AR_SREV_9340(ah) || AR_SREV_9580(ah)) { 1506 REG_WRITE_ARRAY(&ah->ini_dfs, 1507 IS_CHAN_HT40(ah->curchan) ? 2 : 1, regWrites); 1508 } 1509 } 1510 1511 static void ar9003_hw_set_radar_conf(struct ath_hw *ah) 1512 { 1513 struct ath_hw_radar_conf *conf = &ah->radar_conf; 1514 1515 conf->fir_power = -28; 1516 conf->radar_rssi = 0; 1517 conf->pulse_height = 10; 1518 conf->pulse_rssi = 15; 1519 conf->pulse_inband = 8; 1520 conf->pulse_maxlen = 255; 1521 conf->pulse_inband_step = 12; 1522 conf->radar_inband = 8; 1523 } 1524 1525 static void ar9003_hw_antdiv_comb_conf_get(struct ath_hw *ah, 1526 struct ath_hw_antcomb_conf *antconf) 1527 { 1528 u32 regval; 1529 1530 regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL); 1531 antconf->main_lna_conf = (regval & AR_PHY_ANT_DIV_MAIN_LNACONF) >> 1532 AR_PHY_ANT_DIV_MAIN_LNACONF_S; 1533 antconf->alt_lna_conf = (regval & AR_PHY_ANT_DIV_ALT_LNACONF) >> 1534 AR_PHY_ANT_DIV_ALT_LNACONF_S; 1535 antconf->fast_div_bias = (regval & AR_PHY_ANT_FAST_DIV_BIAS) >> 1536 AR_PHY_ANT_FAST_DIV_BIAS_S; 1537 1538 if (AR_SREV_9330_11(ah)) { 1539 antconf->lna1_lna2_switch_delta = -1; 1540 antconf->lna1_lna2_delta = -9; 1541 antconf->div_group = 1; 1542 } else if (AR_SREV_9485(ah)) { 1543 antconf->lna1_lna2_switch_delta = -1; 1544 antconf->lna1_lna2_delta = -9; 1545 antconf->div_group = 2; 1546 } else if (AR_SREV_9565(ah)) { 1547 antconf->lna1_lna2_switch_delta = 3; 1548 antconf->lna1_lna2_delta = -9; 1549 antconf->div_group = 3; 1550 } else { 1551 antconf->lna1_lna2_switch_delta = -1; 1552 antconf->lna1_lna2_delta = -3; 1553 antconf->div_group = 0; 1554 } 1555 } 1556 1557 static void ar9003_hw_antdiv_comb_conf_set(struct ath_hw *ah, 1558 struct ath_hw_antcomb_conf *antconf) 1559 { 1560 u32 regval; 1561 1562 regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL); 1563 regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF | 1564 AR_PHY_ANT_DIV_ALT_LNACONF | 1565 AR_PHY_ANT_FAST_DIV_BIAS | 1566 AR_PHY_ANT_DIV_MAIN_GAINTB | 1567 AR_PHY_ANT_DIV_ALT_GAINTB); 1568 regval |= ((antconf->main_lna_conf << AR_PHY_ANT_DIV_MAIN_LNACONF_S) 1569 & AR_PHY_ANT_DIV_MAIN_LNACONF); 1570 regval |= ((antconf->alt_lna_conf << AR_PHY_ANT_DIV_ALT_LNACONF_S) 1571 & AR_PHY_ANT_DIV_ALT_LNACONF); 1572 regval |= ((antconf->fast_div_bias << AR_PHY_ANT_FAST_DIV_BIAS_S) 1573 & AR_PHY_ANT_FAST_DIV_BIAS); 1574 regval |= ((antconf->main_gaintb << AR_PHY_ANT_DIV_MAIN_GAINTB_S) 1575 & AR_PHY_ANT_DIV_MAIN_GAINTB); 1576 regval |= ((antconf->alt_gaintb << AR_PHY_ANT_DIV_ALT_GAINTB_S) 1577 & AR_PHY_ANT_DIV_ALT_GAINTB); 1578 1579 REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval); 1580 } 1581 1582 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT 1583 1584 static void ar9003_hw_set_bt_ant_diversity(struct ath_hw *ah, bool enable) 1585 { 1586 struct ath9k_hw_capabilities *pCap = &ah->caps; 1587 u8 ant_div_ctl1; 1588 u32 regval; 1589 1590 if (!AR_SREV_9485(ah) && !AR_SREV_9565(ah)) 1591 return; 1592 1593 if (AR_SREV_9485(ah)) { 1594 regval = ar9003_hw_ant_ctrl_common_2_get(ah, 1595 IS_CHAN_2GHZ(ah->curchan)); 1596 if (enable) { 1597 regval &= ~AR_SWITCH_TABLE_COM2_ALL; 1598 regval |= ah->config.ant_ctrl_comm2g_switch_enable; 1599 } 1600 REG_RMW_FIELD(ah, AR_PHY_SWITCH_COM_2, 1601 AR_SWITCH_TABLE_COM2_ALL, regval); 1602 } 1603 1604 ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1); 1605 1606 /* 1607 * Set MAIN/ALT LNA conf. 1608 * Set MAIN/ALT gain_tb. 1609 */ 1610 regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL); 1611 regval &= (~AR_ANT_DIV_CTRL_ALL); 1612 regval |= (ant_div_ctl1 & 0x3f) << AR_ANT_DIV_CTRL_ALL_S; 1613 REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval); 1614 1615 if (AR_SREV_9485_11_OR_LATER(ah)) { 1616 /* 1617 * Enable LNA diversity. 1618 */ 1619 regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL); 1620 regval &= ~AR_PHY_ANT_DIV_LNADIV; 1621 regval |= ((ant_div_ctl1 >> 6) & 0x1) << AR_PHY_ANT_DIV_LNADIV_S; 1622 if (enable) 1623 regval |= AR_ANT_DIV_ENABLE; 1624 1625 REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval); 1626 1627 /* 1628 * Enable fast antenna diversity. 1629 */ 1630 regval = REG_READ(ah, AR_PHY_CCK_DETECT); 1631 regval &= ~AR_FAST_DIV_ENABLE; 1632 regval |= ((ant_div_ctl1 >> 7) & 0x1) << AR_FAST_DIV_ENABLE_S; 1633 if (enable) 1634 regval |= AR_FAST_DIV_ENABLE; 1635 1636 REG_WRITE(ah, AR_PHY_CCK_DETECT, regval); 1637 1638 if (pCap->hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) { 1639 regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL); 1640 regval &= (~(AR_PHY_ANT_DIV_MAIN_LNACONF | 1641 AR_PHY_ANT_DIV_ALT_LNACONF | 1642 AR_PHY_ANT_DIV_ALT_GAINTB | 1643 AR_PHY_ANT_DIV_MAIN_GAINTB)); 1644 /* 1645 * Set MAIN to LNA1 and ALT to LNA2 at the 1646 * beginning. 1647 */ 1648 regval |= (ATH_ANT_DIV_COMB_LNA1 << 1649 AR_PHY_ANT_DIV_MAIN_LNACONF_S); 1650 regval |= (ATH_ANT_DIV_COMB_LNA2 << 1651 AR_PHY_ANT_DIV_ALT_LNACONF_S); 1652 REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval); 1653 } 1654 } else if (AR_SREV_9565(ah)) { 1655 if (enable) { 1656 REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL, 1657 AR_ANT_DIV_ENABLE); 1658 REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL, 1659 (1 << AR_PHY_ANT_SW_RX_PROT_S)); 1660 REG_SET_BIT(ah, AR_PHY_CCK_DETECT, 1661 AR_FAST_DIV_ENABLE); 1662 REG_SET_BIT(ah, AR_PHY_RESTART, 1663 AR_PHY_RESTART_ENABLE_DIV_M2FLAG); 1664 REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, 1665 AR_BTCOEX_WL_LNADIV_FORCE_ON); 1666 } else { 1667 REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL, 1668 AR_ANT_DIV_ENABLE); 1669 REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL, 1670 (1 << AR_PHY_ANT_SW_RX_PROT_S)); 1671 REG_CLR_BIT(ah, AR_PHY_CCK_DETECT, 1672 AR_FAST_DIV_ENABLE); 1673 REG_CLR_BIT(ah, AR_PHY_RESTART, 1674 AR_PHY_RESTART_ENABLE_DIV_M2FLAG); 1675 REG_CLR_BIT(ah, AR_BTCOEX_WL_LNADIV, 1676 AR_BTCOEX_WL_LNADIV_FORCE_ON); 1677 1678 regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL); 1679 regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF | 1680 AR_PHY_ANT_DIV_ALT_LNACONF | 1681 AR_PHY_ANT_DIV_MAIN_GAINTB | 1682 AR_PHY_ANT_DIV_ALT_GAINTB); 1683 regval |= (ATH_ANT_DIV_COMB_LNA1 << 1684 AR_PHY_ANT_DIV_MAIN_LNACONF_S); 1685 regval |= (ATH_ANT_DIV_COMB_LNA2 << 1686 AR_PHY_ANT_DIV_ALT_LNACONF_S); 1687 REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval); 1688 } 1689 } 1690 } 1691 1692 #endif 1693 1694 static int ar9003_hw_fast_chan_change(struct ath_hw *ah, 1695 struct ath9k_channel *chan, 1696 u8 *ini_reloaded) 1697 { 1698 unsigned int regWrites = 0; 1699 u32 modesIndex, txgain_index; 1700 1701 if (IS_CHAN_5GHZ(chan)) 1702 modesIndex = IS_CHAN_HT40(chan) ? 2 : 1; 1703 else 1704 modesIndex = IS_CHAN_HT40(chan) ? 3 : 4; 1705 1706 txgain_index = AR_SREV_9531(ah) ? 1 : modesIndex; 1707 1708 if (modesIndex == ah->modes_index) { 1709 *ini_reloaded = false; 1710 goto set_rfmode; 1711 } 1712 1713 ar9003_hw_prog_ini(ah, &ah->iniSOC[ATH_INI_POST], modesIndex); 1714 ar9003_hw_prog_ini(ah, &ah->iniMac[ATH_INI_POST], modesIndex); 1715 ar9003_hw_prog_ini(ah, &ah->iniBB[ATH_INI_POST], modesIndex); 1716 ar9003_hw_prog_ini(ah, &ah->iniRadio[ATH_INI_POST], modesIndex); 1717 1718 if (AR_SREV_9462_20_OR_LATER(ah)) 1719 ar9003_hw_prog_ini(ah, &ah->ini_radio_post_sys2ant, 1720 modesIndex); 1721 1722 REG_WRITE_ARRAY(&ah->iniModesTxGain, txgain_index, regWrites); 1723 1724 if (AR_SREV_9462_20_OR_LATER(ah)) { 1725 /* 1726 * CUS217 mix LNA mode. 1727 */ 1728 if (ar9003_hw_get_rx_gain_idx(ah) == 2) { 1729 REG_WRITE_ARRAY(&ah->ini_modes_rxgain_bb_core, 1730 1, regWrites); 1731 REG_WRITE_ARRAY(&ah->ini_modes_rxgain_bb_postamble, 1732 modesIndex, regWrites); 1733 } 1734 } 1735 1736 /* 1737 * For 5GHz channels requiring Fast Clock, apply 1738 * different modal values. 1739 */ 1740 if (IS_CHAN_A_FAST_CLOCK(ah, chan)) 1741 REG_WRITE_ARRAY(&ah->iniModesFastClock, modesIndex, regWrites); 1742 1743 if (AR_SREV_9565(ah)) 1744 REG_WRITE_ARRAY(&ah->iniModesFastClock, 1, regWrites); 1745 1746 /* 1747 * JAPAN regulatory. 1748 */ 1749 if (chan->channel == 2484) 1750 ar9003_hw_prog_ini(ah, &ah->iniCckfirJapan2484, 1); 1751 1752 ah->modes_index = modesIndex; 1753 *ini_reloaded = true; 1754 1755 set_rfmode: 1756 ar9003_hw_set_rfmode(ah, chan); 1757 return 0; 1758 } 1759 1760 static void ar9003_hw_spectral_scan_config(struct ath_hw *ah, 1761 struct ath_spec_scan *param) 1762 { 1763 u8 count; 1764 1765 if (!param->enabled) { 1766 REG_CLR_BIT(ah, AR_PHY_SPECTRAL_SCAN, 1767 AR_PHY_SPECTRAL_SCAN_ENABLE); 1768 return; 1769 } 1770 1771 REG_SET_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_FFT_ENA); 1772 REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN, AR_PHY_SPECTRAL_SCAN_ENABLE); 1773 1774 /* on AR93xx and newer, count = 0 will make the the chip send 1775 * spectral samples endlessly. Check if this really was intended, 1776 * and fix otherwise. 1777 */ 1778 count = param->count; 1779 if (param->endless) 1780 count = 0; 1781 else if (param->count == 0) 1782 count = 1; 1783 1784 if (param->short_repeat) 1785 REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN, 1786 AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT); 1787 else 1788 REG_CLR_BIT(ah, AR_PHY_SPECTRAL_SCAN, 1789 AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT); 1790 1791 REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN, 1792 AR_PHY_SPECTRAL_SCAN_COUNT, count); 1793 REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN, 1794 AR_PHY_SPECTRAL_SCAN_PERIOD, param->period); 1795 REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN, 1796 AR_PHY_SPECTRAL_SCAN_FFT_PERIOD, param->fft_period); 1797 1798 return; 1799 } 1800 1801 static void ar9003_hw_spectral_scan_trigger(struct ath_hw *ah) 1802 { 1803 /* Activate spectral scan */ 1804 REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN, 1805 AR_PHY_SPECTRAL_SCAN_ACTIVE); 1806 } 1807 1808 static void ar9003_hw_spectral_scan_wait(struct ath_hw *ah) 1809 { 1810 struct ath_common *common = ath9k_hw_common(ah); 1811 1812 /* Poll for spectral scan complete */ 1813 if (!ath9k_hw_wait(ah, AR_PHY_SPECTRAL_SCAN, 1814 AR_PHY_SPECTRAL_SCAN_ACTIVE, 1815 0, AH_WAIT_TIMEOUT)) { 1816 ath_err(common, "spectral scan wait failed\n"); 1817 return; 1818 } 1819 } 1820 1821 static void ar9003_hw_tx99_start(struct ath_hw *ah, u32 qnum) 1822 { 1823 REG_SET_BIT(ah, AR_PHY_TEST, PHY_AGC_CLR); 1824 REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS); 1825 REG_WRITE(ah, AR_CR, AR_CR_RXD); 1826 REG_WRITE(ah, AR_DLCL_IFS(qnum), 0); 1827 REG_WRITE(ah, AR_D_GBL_IFS_SIFS, 20); /* 50 OK */ 1828 REG_WRITE(ah, AR_D_GBL_IFS_EIFS, 20); 1829 REG_WRITE(ah, AR_TIME_OUT, 0x00000400); 1830 REG_WRITE(ah, AR_DRETRY_LIMIT(qnum), 0xffffffff); 1831 REG_SET_BIT(ah, AR_QMISC(qnum), AR_Q_MISC_DCU_EARLY_TERM_REQ); 1832 } 1833 1834 static void ar9003_hw_tx99_stop(struct ath_hw *ah) 1835 { 1836 REG_CLR_BIT(ah, AR_PHY_TEST, PHY_AGC_CLR); 1837 REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS); 1838 } 1839 1840 static void ar9003_hw_tx99_set_txpower(struct ath_hw *ah, u8 txpower) 1841 { 1842 static u8 p_pwr_array[ar9300RateSize] = { 0 }; 1843 unsigned int i; 1844 1845 txpower = txpower <= MAX_RATE_POWER ? txpower : MAX_RATE_POWER; 1846 for (i = 0; i < ar9300RateSize; i++) 1847 p_pwr_array[i] = txpower; 1848 1849 ar9003_hw_tx_power_regwrite(ah, p_pwr_array); 1850 } 1851 1852 static void ar9003_hw_init_txpower_cck(struct ath_hw *ah, u8 *rate_array) 1853 { 1854 ah->tx_power[0] = rate_array[ALL_TARGET_LEGACY_1L_5L]; 1855 ah->tx_power[1] = rate_array[ALL_TARGET_LEGACY_1L_5L]; 1856 ah->tx_power[2] = min(rate_array[ALL_TARGET_LEGACY_1L_5L], 1857 rate_array[ALL_TARGET_LEGACY_5S]); 1858 ah->tx_power[3] = min(rate_array[ALL_TARGET_LEGACY_11L], 1859 rate_array[ALL_TARGET_LEGACY_11S]); 1860 } 1861 1862 static void ar9003_hw_init_txpower_ofdm(struct ath_hw *ah, u8 *rate_array, 1863 int offset) 1864 { 1865 int i, j; 1866 1867 for (i = offset; i < offset + AR9300_OFDM_RATES; i++) { 1868 /* OFDM rate to power table idx */ 1869 j = ofdm2pwr[i - offset]; 1870 ah->tx_power[i] = rate_array[j]; 1871 } 1872 } 1873 1874 static void ar9003_hw_init_txpower_ht(struct ath_hw *ah, u8 *rate_array, 1875 int ss_offset, int ds_offset, 1876 int ts_offset, bool is_40) 1877 { 1878 int i, j, mcs_idx = 0; 1879 const u8 *mcs2pwr = (is_40) ? mcs2pwr_ht40 : mcs2pwr_ht20; 1880 1881 for (i = ss_offset; i < ss_offset + AR9300_HT_SS_RATES; i++) { 1882 j = mcs2pwr[mcs_idx]; 1883 ah->tx_power[i] = rate_array[j]; 1884 mcs_idx++; 1885 } 1886 1887 for (i = ds_offset; i < ds_offset + AR9300_HT_DS_RATES; i++) { 1888 j = mcs2pwr[mcs_idx]; 1889 ah->tx_power[i] = rate_array[j]; 1890 mcs_idx++; 1891 } 1892 1893 for (i = ts_offset; i < ts_offset + AR9300_HT_TS_RATES; i++) { 1894 j = mcs2pwr[mcs_idx]; 1895 ah->tx_power[i] = rate_array[j]; 1896 mcs_idx++; 1897 } 1898 } 1899 1900 static void ar9003_hw_init_txpower_stbc(struct ath_hw *ah, int ss_offset, 1901 int ds_offset, int ts_offset) 1902 { 1903 memcpy(&ah->tx_power_stbc[ss_offset], &ah->tx_power[ss_offset], 1904 AR9300_HT_SS_RATES); 1905 memcpy(&ah->tx_power_stbc[ds_offset], &ah->tx_power[ds_offset], 1906 AR9300_HT_DS_RATES); 1907 memcpy(&ah->tx_power_stbc[ts_offset], &ah->tx_power[ts_offset], 1908 AR9300_HT_TS_RATES); 1909 } 1910 1911 void ar9003_hw_init_rate_txpower(struct ath_hw *ah, u8 *rate_array, 1912 struct ath9k_channel *chan) 1913 { 1914 if (IS_CHAN_5GHZ(chan)) { 1915 ar9003_hw_init_txpower_ofdm(ah, rate_array, 1916 AR9300_11NA_OFDM_SHIFT); 1917 if (IS_CHAN_HT20(chan) || IS_CHAN_HT40(chan)) { 1918 ar9003_hw_init_txpower_ht(ah, rate_array, 1919 AR9300_11NA_HT_SS_SHIFT, 1920 AR9300_11NA_HT_DS_SHIFT, 1921 AR9300_11NA_HT_TS_SHIFT, 1922 IS_CHAN_HT40(chan)); 1923 ar9003_hw_init_txpower_stbc(ah, 1924 AR9300_11NA_HT_SS_SHIFT, 1925 AR9300_11NA_HT_DS_SHIFT, 1926 AR9300_11NA_HT_TS_SHIFT); 1927 } 1928 } else { 1929 ar9003_hw_init_txpower_cck(ah, rate_array); 1930 ar9003_hw_init_txpower_ofdm(ah, rate_array, 1931 AR9300_11NG_OFDM_SHIFT); 1932 if (IS_CHAN_HT20(chan) || IS_CHAN_HT40(chan)) { 1933 ar9003_hw_init_txpower_ht(ah, rate_array, 1934 AR9300_11NG_HT_SS_SHIFT, 1935 AR9300_11NG_HT_DS_SHIFT, 1936 AR9300_11NG_HT_TS_SHIFT, 1937 IS_CHAN_HT40(chan)); 1938 ar9003_hw_init_txpower_stbc(ah, 1939 AR9300_11NG_HT_SS_SHIFT, 1940 AR9300_11NG_HT_DS_SHIFT, 1941 AR9300_11NG_HT_TS_SHIFT); 1942 } 1943 } 1944 } 1945 1946 void ar9003_hw_attach_phy_ops(struct ath_hw *ah) 1947 { 1948 struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah); 1949 struct ath_hw_ops *ops = ath9k_hw_ops(ah); 1950 static const u32 ar9300_cca_regs[6] = { 1951 AR_PHY_CCA_0, 1952 AR_PHY_CCA_1, 1953 AR_PHY_CCA_2, 1954 AR_PHY_EXT_CCA, 1955 AR_PHY_EXT_CCA_1, 1956 AR_PHY_EXT_CCA_2, 1957 }; 1958 1959 priv_ops->rf_set_freq = ar9003_hw_set_channel; 1960 priv_ops->spur_mitigate_freq = ar9003_hw_spur_mitigate; 1961 1962 if (AR_SREV_9340(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah) || 1963 AR_SREV_9561(ah)) 1964 priv_ops->compute_pll_control = ar9003_hw_compute_pll_control_soc; 1965 else 1966 priv_ops->compute_pll_control = ar9003_hw_compute_pll_control; 1967 1968 priv_ops->set_channel_regs = ar9003_hw_set_channel_regs; 1969 priv_ops->init_bb = ar9003_hw_init_bb; 1970 priv_ops->process_ini = ar9003_hw_process_ini; 1971 priv_ops->set_rfmode = ar9003_hw_set_rfmode; 1972 priv_ops->mark_phy_inactive = ar9003_hw_mark_phy_inactive; 1973 priv_ops->set_delta_slope = ar9003_hw_set_delta_slope; 1974 priv_ops->rfbus_req = ar9003_hw_rfbus_req; 1975 priv_ops->rfbus_done = ar9003_hw_rfbus_done; 1976 priv_ops->ani_control = ar9003_hw_ani_control; 1977 priv_ops->do_getnf = ar9003_hw_do_getnf; 1978 priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs; 1979 priv_ops->set_radar_params = ar9003_hw_set_radar_params; 1980 priv_ops->fast_chan_change = ar9003_hw_fast_chan_change; 1981 1982 ops->antdiv_comb_conf_get = ar9003_hw_antdiv_comb_conf_get; 1983 ops->antdiv_comb_conf_set = ar9003_hw_antdiv_comb_conf_set; 1984 ops->spectral_scan_config = ar9003_hw_spectral_scan_config; 1985 ops->spectral_scan_trigger = ar9003_hw_spectral_scan_trigger; 1986 ops->spectral_scan_wait = ar9003_hw_spectral_scan_wait; 1987 1988 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT 1989 ops->set_bt_ant_diversity = ar9003_hw_set_bt_ant_diversity; 1990 #endif 1991 ops->tx99_start = ar9003_hw_tx99_start; 1992 ops->tx99_stop = ar9003_hw_tx99_stop; 1993 ops->tx99_set_txpower = ar9003_hw_tx99_set_txpower; 1994 1995 ar9003_hw_set_nf_limits(ah); 1996 ar9003_hw_set_radar_conf(ah); 1997 memcpy(ah->nf_regs, ar9300_cca_regs, sizeof(ah->nf_regs)); 1998 } 1999 2000 /* 2001 * Baseband Watchdog signatures: 2002 * 2003 * 0x04000539: BB hang when operating in HT40 DFS Channel. 2004 * Full chip reset is not required, but a recovery 2005 * mechanism is needed. 2006 * 2007 * 0x1300000a: Related to CAC deafness. 2008 * Chip reset is not required. 2009 * 2010 * 0x0400000a: Related to CAC deafness. 2011 * Full chip reset is required. 2012 * 2013 * 0x04000b09: RX state machine gets into an illegal state 2014 * when a packet with unsupported rate is received. 2015 * Full chip reset is required and PHY_RESTART has 2016 * to be disabled. 2017 * 2018 * 0x04000409: Packet stuck on receive. 2019 * Full chip reset is required for all chips except 2020 * AR9340, AR9531 and AR9561. 2021 */ 2022 2023 /* 2024 * ar9003_hw_bb_watchdog_check(): Returns true if a chip reset is required. 2025 */ 2026 bool ar9003_hw_bb_watchdog_check(struct ath_hw *ah) 2027 { 2028 u32 val; 2029 2030 switch(ah->bb_watchdog_last_status) { 2031 case 0x04000539: 2032 val = REG_READ(ah, AR_PHY_RADAR_0); 2033 val &= (~AR_PHY_RADAR_0_FIRPWR); 2034 val |= SM(0x7f, AR_PHY_RADAR_0_FIRPWR); 2035 REG_WRITE(ah, AR_PHY_RADAR_0, val); 2036 udelay(1); 2037 val = REG_READ(ah, AR_PHY_RADAR_0); 2038 val &= ~AR_PHY_RADAR_0_FIRPWR; 2039 val |= SM(AR9300_DFS_FIRPWR, AR_PHY_RADAR_0_FIRPWR); 2040 REG_WRITE(ah, AR_PHY_RADAR_0, val); 2041 2042 return false; 2043 case 0x1300000a: 2044 return false; 2045 case 0x0400000a: 2046 case 0x04000b09: 2047 return true; 2048 case 0x04000409: 2049 if (AR_SREV_9340(ah) || AR_SREV_9531(ah) || AR_SREV_9561(ah)) 2050 return false; 2051 else 2052 return true; 2053 default: 2054 /* 2055 * For any other unknown signatures, do a 2056 * full chip reset. 2057 */ 2058 return true; 2059 } 2060 } 2061 EXPORT_SYMBOL(ar9003_hw_bb_watchdog_check); 2062 2063 void ar9003_hw_bb_watchdog_config(struct ath_hw *ah) 2064 { 2065 struct ath_common *common = ath9k_hw_common(ah); 2066 u32 idle_tmo_ms = ah->bb_watchdog_timeout_ms; 2067 u32 val, idle_count; 2068 2069 if (!idle_tmo_ms) { 2070 /* disable IRQ, disable chip-reset for BB panic */ 2071 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2, 2072 REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) & 2073 ~(AR_PHY_WATCHDOG_RST_ENABLE | 2074 AR_PHY_WATCHDOG_IRQ_ENABLE)); 2075 2076 /* disable watchdog in non-IDLE mode, disable in IDLE mode */ 2077 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1, 2078 REG_READ(ah, AR_PHY_WATCHDOG_CTL_1) & 2079 ~(AR_PHY_WATCHDOG_NON_IDLE_ENABLE | 2080 AR_PHY_WATCHDOG_IDLE_ENABLE)); 2081 2082 ath_dbg(common, RESET, "Disabled BB Watchdog\n"); 2083 return; 2084 } 2085 2086 /* enable IRQ, disable chip-reset for BB watchdog */ 2087 val = REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) & AR_PHY_WATCHDOG_CNTL2_MASK; 2088 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2, 2089 (val | AR_PHY_WATCHDOG_IRQ_ENABLE) & 2090 ~AR_PHY_WATCHDOG_RST_ENABLE); 2091 2092 /* bound limit to 10 secs */ 2093 if (idle_tmo_ms > 10000) 2094 idle_tmo_ms = 10000; 2095 2096 /* 2097 * The time unit for watchdog event is 2^15 44/88MHz cycles. 2098 * 2099 * For HT20 we have a time unit of 2^15/44 MHz = .74 ms per tick 2100 * For HT40 we have a time unit of 2^15/88 MHz = .37 ms per tick 2101 * 2102 * Given we use fast clock now in 5 GHz, these time units should 2103 * be common for both 2 GHz and 5 GHz. 2104 */ 2105 idle_count = (100 * idle_tmo_ms) / 74; 2106 if (ah->curchan && IS_CHAN_HT40(ah->curchan)) 2107 idle_count = (100 * idle_tmo_ms) / 37; 2108 2109 /* 2110 * enable watchdog in non-IDLE mode, disable in IDLE mode, 2111 * set idle time-out. 2112 */ 2113 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1, 2114 AR_PHY_WATCHDOG_NON_IDLE_ENABLE | 2115 AR_PHY_WATCHDOG_IDLE_MASK | 2116 (AR_PHY_WATCHDOG_NON_IDLE_MASK & (idle_count << 2))); 2117 2118 ath_dbg(common, RESET, "Enabled BB Watchdog timeout (%u ms)\n", 2119 idle_tmo_ms); 2120 } 2121 2122 void ar9003_hw_bb_watchdog_read(struct ath_hw *ah) 2123 { 2124 /* 2125 * we want to avoid printing in ISR context so we save the 2126 * watchdog status to be printed later in bottom half context. 2127 */ 2128 ah->bb_watchdog_last_status = REG_READ(ah, AR_PHY_WATCHDOG_STATUS); 2129 2130 /* 2131 * the watchdog timer should reset on status read but to be sure 2132 * sure we write 0 to the watchdog status bit. 2133 */ 2134 REG_WRITE(ah, AR_PHY_WATCHDOG_STATUS, 2135 ah->bb_watchdog_last_status & ~AR_PHY_WATCHDOG_STATUS_CLR); 2136 } 2137 2138 void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah) 2139 { 2140 struct ath_common *common = ath9k_hw_common(ah); 2141 u32 status; 2142 2143 if (likely(!(common->debug_mask & ATH_DBG_RESET))) 2144 return; 2145 2146 status = ah->bb_watchdog_last_status; 2147 ath_dbg(common, RESET, 2148 "\n==== BB update: BB status=0x%08x ====\n", status); 2149 ath_dbg(common, RESET, 2150 "** BB state: wd=%u det=%u rdar=%u rOFDM=%d rCCK=%u tOFDM=%u tCCK=%u agc=%u src=%u **\n", 2151 MS(status, AR_PHY_WATCHDOG_INFO), 2152 MS(status, AR_PHY_WATCHDOG_DET_HANG), 2153 MS(status, AR_PHY_WATCHDOG_RADAR_SM), 2154 MS(status, AR_PHY_WATCHDOG_RX_OFDM_SM), 2155 MS(status, AR_PHY_WATCHDOG_RX_CCK_SM), 2156 MS(status, AR_PHY_WATCHDOG_TX_OFDM_SM), 2157 MS(status, AR_PHY_WATCHDOG_TX_CCK_SM), 2158 MS(status, AR_PHY_WATCHDOG_AGC_SM), 2159 MS(status, AR_PHY_WATCHDOG_SRCH_SM)); 2160 2161 ath_dbg(common, RESET, "** BB WD cntl: cntl1=0x%08x cntl2=0x%08x **\n", 2162 REG_READ(ah, AR_PHY_WATCHDOG_CTL_1), 2163 REG_READ(ah, AR_PHY_WATCHDOG_CTL_2)); 2164 ath_dbg(common, RESET, "** BB mode: BB_gen_controls=0x%08x **\n", 2165 REG_READ(ah, AR_PHY_GEN_CTRL)); 2166 2167 #define PCT(_field) (common->cc_survey._field * 100 / common->cc_survey.cycles) 2168 if (common->cc_survey.cycles) 2169 ath_dbg(common, RESET, 2170 "** BB busy times: rx_clear=%d%%, rx_frame=%d%%, tx_frame=%d%% **\n", 2171 PCT(rx_busy), PCT(rx_frame), PCT(tx_frame)); 2172 2173 ath_dbg(common, RESET, "==== BB update: done ====\n\n"); 2174 } 2175 EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info); 2176 2177 void ar9003_hw_disable_phy_restart(struct ath_hw *ah) 2178 { 2179 u8 result; 2180 u32 val; 2181 2182 /* While receiving unsupported rate frame rx state machine 2183 * gets into a state 0xb and if phy_restart happens in that 2184 * state, BB would go hang. If RXSM is in 0xb state after 2185 * first bb panic, ensure to disable the phy_restart. 2186 */ 2187 result = MS(ah->bb_watchdog_last_status, AR_PHY_WATCHDOG_RX_OFDM_SM); 2188 2189 if ((result == 0xb) || ah->bb_hang_rx_ofdm) { 2190 ah->bb_hang_rx_ofdm = true; 2191 val = REG_READ(ah, AR_PHY_RESTART); 2192 val &= ~AR_PHY_RESTART_ENA; 2193 REG_WRITE(ah, AR_PHY_RESTART, val); 2194 } 2195 } 2196 EXPORT_SYMBOL(ar9003_hw_disable_phy_restart); 2197