ar9003_phy.c 36.9 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
/*
 * Copyright (c) 2010 Atheros Communications Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "hw.h"
18
#include "ar9003_phy.h"
19

20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
static const int firstep_table[] =
/* level:  0   1   2   3   4   5   6   7   8  */
	{ -4, -2,  0,  2,  4,  6,  8, 10, 12 }; /* lvl 0-8, default 2 */

static const int cycpwrThr1_table[] =
/* level:  0   1   2   3   4   5   6   7   8  */
	{ -6, -4, -2,  0,  2,  4,  6,  8 };     /* lvl 0-7, default 3 */

/*
 * register values to turn OFDM weak signal detection OFF
 */
static const int m1ThreshLow_off = 127;
static const int m2ThreshLow_off = 127;
static const int m1Thresh_off = 127;
static const int m2Thresh_off = 127;
static const int m2CountThr_off =  31;
static const int m2CountThrLow_off =  63;
static const int m1ThreshLowExt_off = 127;
static const int m2ThreshLowExt_off = 127;
static const int m1ThreshExt_off = 127;
static const int m2ThreshExt_off = 127;

42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68
/**
 * ar9003_hw_set_channel - set channel on single-chip device
 * @ah: atheros hardware structure
 * @chan:
 *
 * This is the function to change channel on single-chip devices, that is
 * all devices after ar9280.
 *
 * This function takes the channel value in MHz and sets
 * hardware channel value. Assumes writes have been enabled to analog bus.
 *
 * Actual Expression,
 *
 * For 2GHz channel,
 * Channel Frequency = (3/4) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
 * (freq_ref = 40MHz)
 *
 * For 5GHz channel,
 * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^10)
 * (freq_ref = 40MHz/(24>>amodeRefSel))
 *
 * For 5GHz channels which are 5MHz spaced,
 * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
 * (freq_ref = 40MHz)
 */
static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
{
69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114
	u16 bMode, fracMode = 0, aModeRefSel = 0;
	u32 freq, channelSel = 0, reg32 = 0;
	struct chan_centers centers;
	int loadSynthChannel;

	ath9k_hw_get_channel_centers(ah, chan, &centers);
	freq = centers.synth_center;

	if (freq < 4800) {     /* 2 GHz, fractional mode */
		channelSel = CHANSEL_2G(freq);
		/* Set to 2G mode */
		bMode = 1;
	} else {
		channelSel = CHANSEL_5G(freq);
		/* Doubler is ON, so, divide channelSel by 2. */
		channelSel >>= 1;
		/* Set to 5G mode */
		bMode = 0;
	}

	/* Enable fractional mode for all channels */
	fracMode = 1;
	aModeRefSel = 0;
	loadSynthChannel = 0;

	reg32 = (bMode << 29);
	REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32);

	/* Enable Long shift Select for Synthesizer */
	REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH4,
		      AR_PHY_SYNTH4_LONG_SHIFT_SELECT, 1);

	/* Program Synth. setting */
	reg32 = (channelSel << 2) | (fracMode << 30) |
		(aModeRefSel << 28) | (loadSynthChannel << 31);
	REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);

	/* Toggle Load Synth channel bit */
	loadSynthChannel = 1;
	reg32 = (channelSel << 2) | (fracMode << 30) |
		(aModeRefSel << 28) | (loadSynthChannel << 31);
	REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);

	ah->curchan = chan;
	ah->curchan_rad_index = -1;

115 116 117 118
	return 0;
}

/**
119
 * ar9003_hw_spur_mitigate_mrc_cck - convert baseband spur frequency
120 121 122 123 124 125 126 127
 * @ah: atheros hardware structure
 * @chan:
 *
 * For single-chip solutions. Converts to baseband spur frequency given the
 * input channel frequency and compute register settings below.
 *
 * Spur mitigation for MRC CCK
 */
128 129
static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
					    struct ath9k_channel *chan)
130
{
131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179
	u32 spur_freq[4] = { 2420, 2440, 2464, 2480 };
	int cur_bb_spur, negative = 0, cck_spur_freq;
	int i;

	/*
	 * Need to verify range +/- 10 MHz in control channel, otherwise spur
	 * is out-of-band and can be ignored.
	 */

	for (i = 0; i < 4; i++) {
		negative = 0;
		cur_bb_spur = spur_freq[i] - chan->channel;

		if (cur_bb_spur < 0) {
			negative = 1;
			cur_bb_spur = -cur_bb_spur;
		}
		if (cur_bb_spur < 10) {
			cck_spur_freq = (int)((cur_bb_spur << 19) / 11);

			if (negative == 1)
				cck_spur_freq = -cck_spur_freq;

			cck_spur_freq = cck_spur_freq & 0xfffff;

			REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
				      AR_PHY_AGC_CONTROL_YCOK_MAX, 0x7);
			REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
				      AR_PHY_CCK_SPUR_MIT_SPUR_RSSI_THR, 0x7f);
			REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
				      AR_PHY_CCK_SPUR_MIT_SPUR_FILTER_TYPE,
				      0x2);
			REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
				      AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT,
				      0x1);
			REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
				      AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ,
				      cck_spur_freq);

			return;
		}
	}

	REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
		      AR_PHY_AGC_CONTROL_YCOK_MAX, 0x5);
	REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
		      AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT, 0x0);
	REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
		      AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ, 0x0);
180 181
}

182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387
/* Clean all spur register fields */
static void ar9003_hw_spur_ofdm_clear(struct ath_hw *ah)
{
	REG_RMW_FIELD(ah, AR_PHY_TIMING4,
		      AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0);
	REG_RMW_FIELD(ah, AR_PHY_TIMING11,
		      AR_PHY_TIMING11_SPUR_FREQ_SD, 0);
	REG_RMW_FIELD(ah, AR_PHY_TIMING11,
		      AR_PHY_TIMING11_SPUR_DELTA_PHASE, 0);
	REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
		      AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, 0);
	REG_RMW_FIELD(ah, AR_PHY_TIMING11,
		      AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0);
	REG_RMW_FIELD(ah, AR_PHY_TIMING11,
		      AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0);
	REG_RMW_FIELD(ah, AR_PHY_TIMING4,
		      AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0);
	REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
		      AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 0);
	REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
		      AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 0);

	REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
		      AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0);
	REG_RMW_FIELD(ah, AR_PHY_TIMING4,
		      AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0);
	REG_RMW_FIELD(ah, AR_PHY_TIMING4,
		      AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0);
	REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
		      AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, 0);
	REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
		      AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, 0);
	REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
		      AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, 0);
	REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
		      AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0);
	REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
		      AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0);
	REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
		      AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0);
	REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
		      AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0);
}

static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
				int freq_offset,
				int spur_freq_sd,
				int spur_delta_phase,
				int spur_subchannel_sd)
{
	int mask_index = 0;

	/* OFDM Spur mitigation */
	REG_RMW_FIELD(ah, AR_PHY_TIMING4,
		 AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0x1);
	REG_RMW_FIELD(ah, AR_PHY_TIMING11,
		      AR_PHY_TIMING11_SPUR_FREQ_SD, spur_freq_sd);
	REG_RMW_FIELD(ah, AR_PHY_TIMING11,
		      AR_PHY_TIMING11_SPUR_DELTA_PHASE, spur_delta_phase);
	REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
		      AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, spur_subchannel_sd);
	REG_RMW_FIELD(ah, AR_PHY_TIMING11,
		      AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0x1);
	REG_RMW_FIELD(ah, AR_PHY_TIMING11,
		      AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1);
	REG_RMW_FIELD(ah, AR_PHY_TIMING4,
		      AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0x1);
	REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
		      AR_PHY_SPUR_REG_SPUR_RSSI_THRESH, 34);
	REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
		      AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1);

	if (REG_READ_FIELD(ah, AR_PHY_MODE,
			   AR_PHY_MODE_DYNAMIC) == 0x1)
		REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
			      AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1);

	mask_index = (freq_offset << 4) / 5;
	if (mask_index < 0)
		mask_index = mask_index - 1;

	mask_index = mask_index & 0x7f;

	REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
		      AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0x1);
	REG_RMW_FIELD(ah, AR_PHY_TIMING4,
		      AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0x1);
	REG_RMW_FIELD(ah, AR_PHY_TIMING4,
		      AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0x1);
	REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
		      AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, mask_index);
	REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
		      AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, mask_index);
	REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
		      AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, mask_index);
	REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
		      AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0xc);
	REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
		      AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0xc);
	REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
		      AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
	REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
		      AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0xff);
}

static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah,
				     struct ath9k_channel *chan,
				     int freq_offset)
{
	int spur_freq_sd = 0;
	int spur_subchannel_sd = 0;
	int spur_delta_phase = 0;

	if (IS_CHAN_HT40(chan)) {
		if (freq_offset < 0) {
			if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
					   AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
				spur_subchannel_sd = 1;
			else
				spur_subchannel_sd = 0;

			spur_freq_sd = ((freq_offset + 10) << 9) / 11;

		} else {
			if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
			    AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
				spur_subchannel_sd = 0;
			else
				spur_subchannel_sd = 1;

			spur_freq_sd = ((freq_offset - 10) << 9) / 11;

		}

		spur_delta_phase = (freq_offset << 17) / 5;

	} else {
		spur_subchannel_sd = 0;
		spur_freq_sd = (freq_offset << 9) /11;
		spur_delta_phase = (freq_offset << 18) / 5;
	}

	spur_freq_sd = spur_freq_sd & 0x3ff;
	spur_delta_phase = spur_delta_phase & 0xfffff;

	ar9003_hw_spur_ofdm(ah,
			    freq_offset,
			    spur_freq_sd,
			    spur_delta_phase,
			    spur_subchannel_sd);
}

/* Spur mitigation for OFDM */
static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah,
					 struct ath9k_channel *chan)
{
	int synth_freq;
	int range = 10;
	int freq_offset = 0;
	int mode;
	u8* spurChansPtr;
	unsigned int i;
	struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;

	if (IS_CHAN_5GHZ(chan)) {
		spurChansPtr = &(eep->modalHeader5G.spurChans[0]);
		mode = 0;
	}
	else {
		spurChansPtr = &(eep->modalHeader2G.spurChans[0]);
		mode = 1;
	}

	if (spurChansPtr[0] == 0)
		return; /* No spur in the mode */

	if (IS_CHAN_HT40(chan)) {
		range = 19;
		if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
				   AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
			synth_freq = chan->channel - 10;
		else
			synth_freq = chan->channel + 10;
	} else {
		range = 10;
		synth_freq = chan->channel;
	}

	ar9003_hw_spur_ofdm_clear(ah);

	for (i = 0; spurChansPtr[i] && i < 5; i++) {
		freq_offset = FBIN2FREQ(spurChansPtr[i], mode) - synth_freq;
		if (abs(freq_offset) < range) {
			ar9003_hw_spur_ofdm_work(ah, chan, freq_offset);
			break;
		}
	}
}

static void ar9003_hw_spur_mitigate(struct ath_hw *ah,
				    struct ath9k_channel *chan)
{
	ar9003_hw_spur_mitigate_mrc_cck(ah, chan);
	ar9003_hw_spur_mitigate_ofdm(ah, chan);
}

388 389 390
static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
					 struct ath9k_channel *chan)
{
391 392 393 394 395 396 397 398 399
	u32 pll;

	pll = SM(0x5, AR_RTC_9300_PLL_REFDIV);

	if (chan && IS_CHAN_HALF_RATE(chan))
		pll |= SM(0x1, AR_RTC_9300_PLL_CLKSEL);
	else if (chan && IS_CHAN_QUARTER_RATE(chan))
		pll |= SM(0x2, AR_RTC_9300_PLL_CLKSEL);

400
	pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);
401 402

	return pll;
403 404 405 406 407
}

static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
				       struct ath9k_channel *chan)
{
408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441
	u32 phymode;
	u32 enableDacFifo = 0;

	enableDacFifo =
		(REG_READ(ah, AR_PHY_GEN_CTRL) & AR_PHY_GC_ENABLE_DAC_FIFO);

	/* Enable 11n HT, 20 MHz */
	phymode = AR_PHY_GC_HT_EN | AR_PHY_GC_SINGLE_HT_LTF1 | AR_PHY_GC_WALSH |
		  AR_PHY_GC_SHORT_GI_40 | enableDacFifo;

	/* Configure baseband for dynamic 20/40 operation */
	if (IS_CHAN_HT40(chan)) {
		phymode |= AR_PHY_GC_DYN2040_EN;
		/* Configure control (primary) channel at +-10MHz */
		if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
		    (chan->chanmode == CHANNEL_G_HT40PLUS))
			phymode |= AR_PHY_GC_DYN2040_PRI_CH;

	}

	/* make sure we preserve INI settings */
	phymode |= REG_READ(ah, AR_PHY_GEN_CTRL);
	/* turn off Green Field detection for STA for now */
	phymode &= ~AR_PHY_GC_GF_DETECT_EN;

	REG_WRITE(ah, AR_PHY_GEN_CTRL, phymode);

	/* Configure MAC for 20/40 operation */
	ath9k_hw_set11nmac2040(ah);

	/* global transmit timeout (25 TUs default)*/
	REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
	/* carrier sense timeout */
	REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
442 443 444 445 446
}

static void ar9003_hw_init_bb(struct ath_hw *ah,
			      struct ath9k_channel *chan)
{
447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470
	u32 synthDelay;

	/*
	 * Wait for the frequency synth to settle (synth goes on
	 * via AR_PHY_ACTIVE_EN).  Read the phy active delay register.
	 * Value is in 100ns increments.
	 */
	synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
	if (IS_CHAN_B(chan))
		synthDelay = (4 * synthDelay) / 22;
	else
		synthDelay /= 10;

	/* Activate the PHY (includes baseband activate + synthesizer on) */
	REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);

	/*
	 * There is an issue if the AP starts the calibration before
	 * the base band timeout completes.  This could result in the
	 * rx_clear false triggering.  As a workaround we add delay an
	 * extra BASE_ACTIVATE_DELAY usecs to ensure this condition
	 * does not happen.
	 */
	udelay(synthDelay + BASE_ACTIVATE_DELAY);
471 472
}

473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544
void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
{
	switch (rx) {
	case 0x5:
		REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
			    AR_PHY_SWAP_ALT_CHAIN);
	case 0x3:
	case 0x1:
	case 0x2:
	case 0x7:
		REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx);
		REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx);
		break;
	default:
		break;
	}

	REG_WRITE(ah, AR_SELFGEN_MASK, tx);
	if (tx == 0x5) {
		REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
			    AR_PHY_SWAP_ALT_CHAIN);
	}
}

/*
 * Override INI values with chip specific configuration.
 */
static void ar9003_hw_override_ini(struct ath_hw *ah)
{
	u32 val;

	/*
	 * Set the RX_ABORT and RX_DIS and clear it only after
	 * RXE is set for MAC. This prevents frames with
	 * corrupted descriptor status.
	 */
	REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));

	/*
	 * For AR9280 and above, there is a new feature that allows
	 * Multicast search based on both MAC Address and Key ID. By default,
	 * this feature is enabled. But since the driver is not using this
	 * feature, we switch it off; otherwise multicast search based on
	 * MAC addr only will fail.
	 */
	val = REG_READ(ah, AR_PCU_MISC_MODE2) & (~AR_ADHOC_MCAST_KEYID_ENABLE);
	REG_WRITE(ah, AR_PCU_MISC_MODE2,
		  val | AR_AGG_WEP_ENABLE_FIX | AR_AGG_WEP_ENABLE);
}

static void ar9003_hw_prog_ini(struct ath_hw *ah,
			       struct ar5416IniArray *iniArr,
			       int column)
{
	unsigned int i, regWrites = 0;

	/* New INI format: Array may be undefined (pre, core, post arrays) */
	if (!iniArr->ia_array)
		return;

	/*
	 * New INI format: Pre, core, and post arrays for a given subsystem
	 * may be modal (> 2 columns) or non-modal (2 columns). Determine if
	 * the array is non-modal and force the column to 1.
	 */
	if (column >= iniArr->ia_columns)
		column = 1;

	for (i = 0; i < iniArr->ia_rows; i++) {
		u32 reg = INI_RA(iniArr, i, 0);
		u32 val = INI_RA(iniArr, i, column);

545 546 547 548 549
		if (reg >= 0x16000 && reg < 0x17000)
			ath9k_hw_analog_shift_regwrite(ah, reg, val);
		else
			REG_WRITE(ah, reg, val);

550 551 552 553
		DO_DELAY(regWrites);
	}
}

554 555 556
static int ar9003_hw_process_ini(struct ath_hw *ah,
				 struct ath9k_channel *chan)
{
557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602
	struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
	unsigned int regWrites = 0, i;
	struct ieee80211_channel *channel = chan->chan;
	u32 modesIndex, freqIndex;

	switch (chan->chanmode) {
	case CHANNEL_A:
	case CHANNEL_A_HT20:
		modesIndex = 1;
		freqIndex = 1;
		break;
	case CHANNEL_A_HT40PLUS:
	case CHANNEL_A_HT40MINUS:
		modesIndex = 2;
		freqIndex = 1;
		break;
	case CHANNEL_G:
	case CHANNEL_G_HT20:
	case CHANNEL_B:
		modesIndex = 4;
		freqIndex = 2;
		break;
	case CHANNEL_G_HT40PLUS:
	case CHANNEL_G_HT40MINUS:
		modesIndex = 3;
		freqIndex = 2;
		break;

	default:
		return -EINVAL;
	}

	for (i = 0; i < ATH_INI_NUM_SPLIT; i++) {
		ar9003_hw_prog_ini(ah, &ah->iniSOC[i], modesIndex);
		ar9003_hw_prog_ini(ah, &ah->iniMac[i], modesIndex);
		ar9003_hw_prog_ini(ah, &ah->iniBB[i], modesIndex);
		ar9003_hw_prog_ini(ah, &ah->iniRadio[i], modesIndex);
	}

	REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites);
	REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);

	/*
	 * For 5GHz channels requiring Fast Clock, apply
	 * different modal values.
	 */
603
	if (IS_CHAN_A_FAST_CLOCK(ah, chan))
604 605 606 607 608 609 610 611 612 613 614 615 616
		REG_WRITE_ARRAY(&ah->iniModesAdditional,
				modesIndex, regWrites);

	ar9003_hw_override_ini(ah);
	ar9003_hw_set_channel_regs(ah, chan);
	ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);

	/* Set TX power */
	ah->eep_ops->set_txpower(ah, chan,
				 ath9k_regd_get_ctl(regulatory, chan),
				 channel->max_antenna_gain * 2,
				 channel->max_power * 2,
				 min((u32) MAX_RATE_POWER,
617
				 (u32) regulatory->power_limit), false);
618 619

	return 0;
620 621 622 623 624
}

static void ar9003_hw_set_rfmode(struct ath_hw *ah,
				 struct ath9k_channel *chan)
{
625 626 627 628 629 630 631 632
	u32 rfMode = 0;

	if (chan == NULL)
		return;

	rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
		? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;

633
	if (IS_CHAN_A_FAST_CLOCK(ah, chan))
634 635 636
		rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);

	REG_WRITE(ah, AR_PHY_MODE, rfMode);
637 638 639 640
}

static void ar9003_hw_mark_phy_inactive(struct ath_hw *ah)
{
641
	REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
642 643 644 645 646
}

static void ar9003_hw_set_delta_slope(struct ath_hw *ah,
				      struct ath9k_channel *chan)
{
647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688
	u32 coef_scaled, ds_coef_exp, ds_coef_man;
	u32 clockMhzScaled = 0x64000000;
	struct chan_centers centers;

	/*
	 * half and quarter rate can divide the scaled clock by 2 or 4
	 * scale for selected channel bandwidth
	 */
	if (IS_CHAN_HALF_RATE(chan))
		clockMhzScaled = clockMhzScaled >> 1;
	else if (IS_CHAN_QUARTER_RATE(chan))
		clockMhzScaled = clockMhzScaled >> 2;

	/*
	 * ALGO -> coef = 1e8/fcarrier*fclock/40;
	 * scaled coef to provide precision for this floating calculation
	 */
	ath9k_hw_get_channel_centers(ah, chan, &centers);
	coef_scaled = clockMhzScaled / centers.synth_center;

	ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
				      &ds_coef_exp);

	REG_RMW_FIELD(ah, AR_PHY_TIMING3,
		      AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
	REG_RMW_FIELD(ah, AR_PHY_TIMING3,
		      AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);

	/*
	 * For Short GI,
	 * scaled coeff is 9/10 that of normal coeff
	 */
	coef_scaled = (9 * coef_scaled) / 10;

	ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
				      &ds_coef_exp);

	/* for short gi */
	REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
		      AR_PHY_SGI_DSC_MAN, ds_coef_man);
	REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
		      AR_PHY_SGI_DSC_EXP, ds_coef_exp);
689 690 691 692
}

static bool ar9003_hw_rfbus_req(struct ath_hw *ah)
{
693 694 695
	REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
	return ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
			     AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT);
696 697
}

698 699 700 701
/*
 * Wait for the frequency synth to settle (synth goes on via PHY_ACTIVE_EN).
 * Read the phy active delay register. Value is in 100ns increments.
 */
702 703
static void ar9003_hw_rfbus_done(struct ath_hw *ah)
{
704 705 706 707 708 709 710 711 712
	u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
	if (IS_CHAN_B(ah->curchan))
		synthDelay = (4 * synthDelay) / 22;
	else
		synthDelay /= 10;

	udelay(synthDelay + BASE_ACTIVATE_DELAY);

	REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
713 714
}

715 716 717 718 719
/*
 * Set the interrupt and GPIO values so the ISR can disable RF
 * on a switch signal.  Assumes GPIO port and interrupt polarity
 * are set prior to call.
 */
720 721
static void ar9003_hw_enable_rfkill(struct ath_hw *ah)
{
722 723 724 725 726 727 728 729 730 731 732 733 734
	/* Connect rfsilent_bb_l to baseband */
	REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
		    AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
	/* Set input mux for rfsilent_bb_l to GPIO #0 */
	REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
		    AR_GPIO_INPUT_MUX2_RFSILENT);

	/*
	 * Configure the desired GPIO port for input and
	 * enable baseband rf silence.
	 */
	ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
	REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
735 736 737 738
}

static void ar9003_hw_set_diversity(struct ath_hw *ah, bool value)
{
739 740 741 742 743 744
	u32 v = REG_READ(ah, AR_PHY_CCK_DETECT);
	if (value)
		v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
	else
		v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
	REG_WRITE(ah, AR_PHY_CCK_DETECT, v);
745 746
}

747 748 749
static bool ar9003_hw_ani_control(struct ath_hw *ah,
				  enum ath9k_ani_cmd cmd, int param)
{
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;
754 755 756

	switch (cmd & ah->ani_function) {
	case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{
757 758 759 760 761 762 763
		/*
		 * on == 1 means ofdm weak signal detection is ON
		 * on == 1 is the default, for less noise immunity
		 *
		 * on == 0 means ofdm weak signal detection is OFF
		 * on == 0 means more noise imm
		 */
764
		u32 on = param ? 1 : 0;
765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788
		/*
		 * make register setting for default
		 * (weak sig detect ON) come from INI file
		 */
		int m1ThreshLow = on ?
			aniState->iniDef.m1ThreshLow : m1ThreshLow_off;
		int m2ThreshLow = on ?
			aniState->iniDef.m2ThreshLow : m2ThreshLow_off;
		int m1Thresh = on ?
			aniState->iniDef.m1Thresh : m1Thresh_off;
		int m2Thresh = on ?
			aniState->iniDef.m2Thresh : m2Thresh_off;
		int m2CountThr = on ?
			aniState->iniDef.m2CountThr : m2CountThr_off;
		int m2CountThrLow = on ?
			aniState->iniDef.m2CountThrLow : m2CountThrLow_off;
		int m1ThreshLowExt = on ?
			aniState->iniDef.m1ThreshLowExt : m1ThreshLowExt_off;
		int m2ThreshLowExt = on ?
			aniState->iniDef.m2ThreshLowExt : m2ThreshLowExt_off;
		int m1ThreshExt = on ?
			aniState->iniDef.m1ThreshExt : m1ThreshExt_off;
		int m2ThreshExt = on ?
			aniState->iniDef.m2ThreshExt : m2ThreshExt_off;
789 790 791

		REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
			      AR_PHY_SFCORR_LOW_M1_THRESH_LOW,
792
			      m1ThreshLow);
793 794
		REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
			      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);
802 803
		REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
			      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);
814 815 816 817 818 819 820 821 822

		if (on)
			REG_SET_BIT(ah, AR_PHY_SFCORR_LOW,
				    AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
		else
			REG_CLR_BIT(ah, AR_PHY_SFCORR_LOW,
				    AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);

		if (!on != aniState->ofdmWeakSigDetectOff) {
823 824 825 826 827 828
			ath_print(common, ATH_DBG_ANI,
				  "** ch %d: ofdm weak signal: %s=>%s\n",
				  chan->channel,
				  !aniState->ofdmWeakSigDetectOff ?
					"on" : "off",
				  on ? "on" : "off");
829 830 831 832 833 834 835 836 837 838 839
			if (on)
				ah->stats.ast_ani_ofdmon++;
			else
				ah->stats.ast_ani_ofdmoff++;
			aniState->ofdmWeakSigDetectOff = !on;
		}
		break;
	}
	case ATH9K_ANI_FIRSTEP_LEVEL:{
		u32 level = param;

840
		if (level >= ARRAY_SIZE(firstep_table)) {
841
			ath_print(common, ATH_DBG_ANI,
842 843
				  "ATH9K_ANI_FIRSTEP_LEVEL: level "
				  "out of range (%u > %u)\n",
844
				  level,
845
				  (unsigned) ARRAY_SIZE(firstep_table));
846 847
			return false;
		}
848 849 850 851 852 853 854 855 856 857 858 859

		/*
		 * make register setting relative to default
		 * from INI file & cap value
		 */
		value = firstep_table[level] -
			firstep_table[ATH9K_ANI_FIRSTEP_LVL_NEW] +
			aniState->iniDef.firstep;
		if (value < ATH9K_SIG_FIRSTEP_SETTING_MIN)
			value = ATH9K_SIG_FIRSTEP_SETTING_MIN;
		if (value > ATH9K_SIG_FIRSTEP_SETTING_MAX)
			value = ATH9K_SIG_FIRSTEP_SETTING_MAX;
860 861
		REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
			      AR_PHY_FIND_SIG_FIRSTEP,
862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903
			      value);
		/*
		 * we need to set first step low register too
		 * make register setting relative to default
		 * from INI file & cap value
		 */
		value2 = firstep_table[level] -
			 firstep_table[ATH9K_ANI_FIRSTEP_LVL_NEW] +
			 aniState->iniDef.firstepLow;
		if (value2 < ATH9K_SIG_FIRSTEP_SETTING_MIN)
			value2 = ATH9K_SIG_FIRSTEP_SETTING_MIN;
		if (value2 > ATH9K_SIG_FIRSTEP_SETTING_MAX)
			value2 = ATH9K_SIG_FIRSTEP_SETTING_MAX;

		REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW,
			      AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW, value2);

		if (level != aniState->firstepLevel) {
			ath_print(common, ATH_DBG_ANI,
				  "** ch %d: level %d=>%d[def:%d] "
				  "firstep[level]=%d ini=%d\n",
				  chan->channel,
				  aniState->firstepLevel,
				  level,
				  ATH9K_ANI_FIRSTEP_LVL_NEW,
				  value,
				  aniState->iniDef.firstep);
			ath_print(common, ATH_DBG_ANI,
				  "** ch %d: level %d=>%d[def:%d] "
				  "firstep_low[level]=%d ini=%d\n",
				  chan->channel,
				  aniState->firstepLevel,
				  level,
				  ATH9K_ANI_FIRSTEP_LVL_NEW,
				  value2,
				  aniState->iniDef.firstepLow);
			if (level > aniState->firstepLevel)
				ah->stats.ast_ani_stepup++;
			else if (level < aniState->firstepLevel)
				ah->stats.ast_ani_stepdown++;
			aniState->firstepLevel = level;
		}
904 905 906 907 908
		break;
	}
	case ATH9K_ANI_SPUR_IMMUNITY_LEVEL:{
		u32 level = param;

909
		if (level >= ARRAY_SIZE(cycpwrThr1_table)) {
910
			ath_print(common, ATH_DBG_ANI,
911 912
				  "ATH9K_ANI_SPUR_IMMUNITY_LEVEL: level "
				  "out of range (%u > %u)\n",
913
				  level,
914
				  (unsigned) ARRAY_SIZE(cycpwrThr1_table));
915 916
			return false;
		}
917 918 919 920 921 922 923 924 925 926 927
		/*
		 * make register setting relative to default
		 * from INI file & cap value
		 */
		value = cycpwrThr1_table[level] -
			cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL_NEW] +
			aniState->iniDef.cycpwrThr1;
		if (value < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
			value = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
		if (value > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
			value = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
928 929
		REG_RMW_FIELD(ah, AR_PHY_TIMING5,
			      AR_PHY_TIMING5_CYCPWR_THR1,
930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971
			      value);

		/*
		 * set AR_PHY_EXT_CCA for extension channel
		 * make register setting relative to default
		 * from INI file & cap value
		 */
		value2 = cycpwrThr1_table[level] -
			 cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL_NEW] +
			 aniState->iniDef.cycpwrThr1Ext;
		if (value2 < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
			value2 = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
		if (value2 > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
			value2 = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
		REG_RMW_FIELD(ah, AR_PHY_EXT_CCA,
			      AR_PHY_EXT_CYCPWR_THR1, value2);

		if (level != aniState->spurImmunityLevel) {
			ath_print(common, ATH_DBG_ANI,
				  "** ch %d: level %d=>%d[def:%d] "
				  "cycpwrThr1[level]=%d ini=%d\n",
				  chan->channel,
				  aniState->spurImmunityLevel,
				  level,
				  ATH9K_ANI_SPUR_IMMUNE_LVL_NEW,
				  value,
				  aniState->iniDef.cycpwrThr1);
			ath_print(common, ATH_DBG_ANI,
				  "** ch %d: level %d=>%d[def:%d] "
				  "cycpwrThr1Ext[level]=%d ini=%d\n",
				  chan->channel,
				  aniState->spurImmunityLevel,
				  level,
				  ATH9K_ANI_SPUR_IMMUNE_LVL_NEW,
				  value2,
				  aniState->iniDef.cycpwrThr1Ext);
			if (level > aniState->spurImmunityLevel)
				ah->stats.ast_ani_spurup++;
			else if (level < aniState->spurImmunityLevel)
				ah->stats.ast_ani_spurdown++;
			aniState->spurImmunityLevel = level;
		}
972 973
		break;
	}
974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997
	case ATH9K_ANI_MRC_CCK:{
		/*
		 * is_on == 1 means MRC CCK ON (default, less noise imm)
		 * is_on == 0 means MRC CCK is OFF (more noise imm)
		 */
		bool is_on = param ? 1 : 0;
		REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
			      AR_PHY_MRC_CCK_ENABLE, is_on);
		REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
			      AR_PHY_MRC_CCK_MUX_REG, is_on);
		if (!is_on != aniState->mrcCCKOff) {
			ath_print(common, ATH_DBG_ANI,
				  "** ch %d: MRC CCK: %s=>%s\n",
				  chan->channel,
				  !aniState->mrcCCKOff ? "on" : "off",
				  is_on ? "on" : "off");
		if (is_on)
			ah->stats.ast_ani_ccklow++;
		else
			ah->stats.ast_ani_cckhigh++;
		aniState->mrcCCKOff = !is_on;
		}
	break;
	}
998 999 1000 1001 1002 1003 1004 1005 1006
	case ATH9K_ANI_PRESENT:
		break;
	default:
		ath_print(common, ATH_DBG_ANI,
			  "invalid cmd %u\n", cmd);
		return false;
	}

	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 1014 1015 1016
		  !aniState->mrcCCKOff ? "on" : "off",
		  aniState->listenTime,
		  aniState->ofdmPhyErrCount,
		  aniState->cckPhyErrCount);
1017
	return true;
1018 1019
}

1020 1021 1022 1023 1024 1025
static void ar9003_hw_do_getnf(struct ath_hw *ah,
			      int16_t nfarray[NUM_NF_READINGS])
{
	int16_t nf;

	nf = MS(REG_READ(ah, AR_PHY_CCA_0), AR_PHY_MINCCA_PWR);
1026
	nfarray[0] = sign_extend(nf, 9);
1027 1028

	nf = MS(REG_READ(ah, AR_PHY_CCA_1), AR_PHY_CH1_MINCCA_PWR);
1029
	nfarray[1] = sign_extend(nf, 9);
1030 1031

	nf = MS(REG_READ(ah, AR_PHY_CCA_2), AR_PHY_CH2_MINCCA_PWR);
1032
	nfarray[2] = sign_extend(nf, 9);
1033

1034 1035 1036
	if (!IS_CHAN_HT40(ah->curchan))
		return;

1037
	nf = MS(REG_READ(ah, AR_PHY_EXT_CCA), AR_PHY_EXT_MINCCA_PWR);
1038
	nfarray[3] = sign_extend(nf, 9);
1039 1040

	nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_1), AR_PHY_CH1_EXT_MINCCA_PWR);
1041
	nfarray[4] = sign_extend(nf, 9);
1042 1043

	nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_2), AR_PHY_CH2_EXT_MINCCA_PWR);
1044
	nfarray[5] = sign_extend(nf, 9);
1045 1046
}

1047
static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
1048
{
1049 1050 1051 1052 1053 1054
	ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
	ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
	ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
	ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
	ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
	ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9300_5GHZ;
1055 1056
}

1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069
/*
 * Initialize the ANI register values with default (ini) values.
 * This routine is called during a (full) hardware reset after
 * all the registers are initialised from the INI.
 */
static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah)
{
	struct ar5416AniState *aniState;
	struct ath_common *common = ath9k_hw_common(ah);
	struct ath9k_channel *chan = ah->curchan;
	struct ath9k_ani_default *iniDef;
	u32 val;

1070
	aniState = &ah->curchan->ani;
1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115
	iniDef = &aniState->iniDef;

	ath_print(common, ATH_DBG_ANI,
		  "ver %d.%d opmode %u chan %d Mhz/0x%x\n",
		  ah->hw_version.macVersion,
		  ah->hw_version.macRev,
		  ah->opmode,
		  chan->channel,
		  chan->channelFlags);

	val = REG_READ(ah, AR_PHY_SFCORR);
	iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH);
	iniDef->m2Thresh = MS(val, AR_PHY_SFCORR_M2_THRESH);
	iniDef->m2CountThr = MS(val, AR_PHY_SFCORR_M2COUNT_THR);

	val = REG_READ(ah, AR_PHY_SFCORR_LOW);
	iniDef->m1ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M1_THRESH_LOW);
	iniDef->m2ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M2_THRESH_LOW);
	iniDef->m2CountThrLow = MS(val, AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW);

	val = REG_READ(ah, AR_PHY_SFCORR_EXT);
	iniDef->m1ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH);
	iniDef->m2ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH);
	iniDef->m1ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH_LOW);
	iniDef->m2ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH_LOW);
	iniDef->firstep = REG_READ_FIELD(ah,
					 AR_PHY_FIND_SIG,
					 AR_PHY_FIND_SIG_FIRSTEP);
	iniDef->firstepLow = REG_READ_FIELD(ah,
					    AR_PHY_FIND_SIG_LOW,
					    AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW);
	iniDef->cycpwrThr1 = REG_READ_FIELD(ah,
					    AR_PHY_TIMING5,
					    AR_PHY_TIMING5_CYCPWR_THR1);
	iniDef->cycpwrThr1Ext = REG_READ_FIELD(ah,
					       AR_PHY_EXT_CCA,
					       AR_PHY_EXT_CYCPWR_THR1);

	/* these levels just got reset to defaults by the INI */
	aniState->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL_NEW;
	aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL_NEW;
	aniState->ofdmWeakSigDetectOff = !ATH9K_ANI_USE_OFDM_WEAK_SIG;
	aniState->mrcCCKOff = !ATH9K_ANI_ENABLE_MRC_CCK;
}

1116 1117 1118
void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
{
	struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
1119 1120 1121 1122 1123 1124 1125 1126
	const u32 ar9300_cca_regs[6] = {
		AR_PHY_CCA_0,
		AR_PHY_CCA_1,
		AR_PHY_CCA_2,
		AR_PHY_EXT_CCA,
		AR_PHY_EXT_CCA_1,
		AR_PHY_EXT_CCA_2,
	};
1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140

	priv_ops->rf_set_freq = ar9003_hw_set_channel;
	priv_ops->spur_mitigate_freq = ar9003_hw_spur_mitigate;
	priv_ops->compute_pll_control = ar9003_hw_compute_pll_control;
	priv_ops->set_channel_regs = ar9003_hw_set_channel_regs;
	priv_ops->init_bb = ar9003_hw_init_bb;
	priv_ops->process_ini = ar9003_hw_process_ini;
	priv_ops->set_rfmode = ar9003_hw_set_rfmode;
	priv_ops->mark_phy_inactive = ar9003_hw_mark_phy_inactive;
	priv_ops->set_delta_slope = ar9003_hw_set_delta_slope;
	priv_ops->rfbus_req = ar9003_hw_rfbus_req;
	priv_ops->rfbus_done = ar9003_hw_rfbus_done;
	priv_ops->enable_rfkill = ar9003_hw_enable_rfkill;
	priv_ops->set_diversity = ar9003_hw_set_diversity;
1141
	priv_ops->ani_control = ar9003_hw_ani_control;
1142
	priv_ops->do_getnf = ar9003_hw_do_getnf;
1143
	priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs;
1144 1145

	ar9003_hw_set_nf_limits(ah);
1146
	memcpy(ah->nf_regs, ar9300_cca_regs, sizeof(ah->nf_regs));
1147
}
1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227

void ar9003_hw_bb_watchdog_config(struct ath_hw *ah)
{
	struct ath_common *common = ath9k_hw_common(ah);
	u32 idle_tmo_ms = ah->bb_watchdog_timeout_ms;
	u32 val, idle_count;

	if (!idle_tmo_ms) {
		/* disable IRQ, disable chip-reset for BB panic */
		REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
			  REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) &
			  ~(AR_PHY_WATCHDOG_RST_ENABLE |
			    AR_PHY_WATCHDOG_IRQ_ENABLE));

		/* disable watchdog in non-IDLE mode, disable in IDLE mode */
		REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
			  REG_READ(ah, AR_PHY_WATCHDOG_CTL_1) &
			  ~(AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
			    AR_PHY_WATCHDOG_IDLE_ENABLE));

		ath_print(common, ATH_DBG_RESET, "Disabled BB Watchdog\n");
		return;
	}

	/* enable IRQ, disable chip-reset for BB watchdog */
	val = REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) & AR_PHY_WATCHDOG_CNTL2_MASK;
	REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
		  (val | AR_PHY_WATCHDOG_IRQ_ENABLE) &
		  ~AR_PHY_WATCHDOG_RST_ENABLE);

	/* bound limit to 10 secs */
	if (idle_tmo_ms > 10000)
		idle_tmo_ms = 10000;

	/*
	 * The time unit for watchdog event is 2^15 44/88MHz cycles.
	 *
	 * For HT20 we have a time unit of 2^15/44 MHz = .74 ms per tick
	 * For HT40 we have a time unit of 2^15/88 MHz = .37 ms per tick
	 *
	 * Given we use fast clock now in 5 GHz, these time units should
	 * be common for both 2 GHz and 5 GHz.
	 */
	idle_count = (100 * idle_tmo_ms) / 74;
	if (ah->curchan && IS_CHAN_HT40(ah->curchan))
		idle_count = (100 * idle_tmo_ms) / 37;

	/*
	 * enable watchdog in non-IDLE mode, disable in IDLE mode,
	 * set idle time-out.
	 */
	REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
		  AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
		  AR_PHY_WATCHDOG_IDLE_MASK |
		  (AR_PHY_WATCHDOG_NON_IDLE_MASK & (idle_count << 2)));

	ath_print(common, ATH_DBG_RESET,
		  "Enabled BB Watchdog timeout (%u ms)\n",
		  idle_tmo_ms);
}

void ar9003_hw_bb_watchdog_read(struct ath_hw *ah)
{
	/*
	 * we want to avoid printing in ISR context so we save the
	 * watchdog status to be printed later in bottom half context.
	 */
	ah->bb_watchdog_last_status = REG_READ(ah, AR_PHY_WATCHDOG_STATUS);

	/*
	 * the watchdog timer should reset on status read but to be sure
	 * sure we write 0 to the watchdog status bit.
	 */
	REG_WRITE(ah, AR_PHY_WATCHDOG_STATUS,
		  ah->bb_watchdog_last_status & ~AR_PHY_WATCHDOG_STATUS_CLR);
}

void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah)
{
	struct ath_common *common = ath9k_hw_common(ah);
1228
	u32 status;
1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256

	if (likely(!(common->debug_mask & ATH_DBG_RESET)))
		return;

	status = ah->bb_watchdog_last_status;
	ath_print(common, ATH_DBG_RESET,
		  "\n==== BB update: BB status=0x%08x ====\n", status);
	ath_print(common, ATH_DBG_RESET,
		  "** BB state: wd=%u det=%u rdar=%u rOFDM=%d "
		  "rCCK=%u tOFDM=%u tCCK=%u agc=%u src=%u **\n",
		  MS(status, AR_PHY_WATCHDOG_INFO),
		  MS(status, AR_PHY_WATCHDOG_DET_HANG),
		  MS(status, AR_PHY_WATCHDOG_RADAR_SM),
		  MS(status, AR_PHY_WATCHDOG_RX_OFDM_SM),
		  MS(status, AR_PHY_WATCHDOG_RX_CCK_SM),
		  MS(status, AR_PHY_WATCHDOG_TX_OFDM_SM),
		  MS(status, AR_PHY_WATCHDOG_TX_CCK_SM),
		  MS(status, AR_PHY_WATCHDOG_AGC_SM),
		  MS(status,AR_PHY_WATCHDOG_SRCH_SM));

	ath_print(common, ATH_DBG_RESET,
		  "** BB WD cntl: cntl1=0x%08x cntl2=0x%08x **\n",
		  REG_READ(ah, AR_PHY_WATCHDOG_CTL_1),
		  REG_READ(ah, AR_PHY_WATCHDOG_CTL_2));
	ath_print(common, ATH_DBG_RESET,
		  "** BB mode: BB_gen_controls=0x%08x **\n",
		  REG_READ(ah, AR_PHY_GEN_CTRL));

1257 1258
#define PCT(_field) (common->cc_survey._field * 100 / common->cc_survey.cycles)
	if (common->cc_survey.cycles)
1259 1260 1261
		ath_print(common, ATH_DBG_RESET,
			  "** BB busy times: rx_clear=%d%%, "
			  "rx_frame=%d%%, tx_frame=%d%% **\n",
1262
			  PCT(rx_busy), PCT(rx_frame), PCT(tx_frame));
1263 1264 1265 1266 1267

	ath_print(common, ATH_DBG_RESET,
		  "==== BB update: done ====\n\n");
}
EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info);