2 * Copyright (c) 2010-2011 Atheros Communications Inc.
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.
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.
17 #include <linux/export.h>
19 #include "ar9003_phy.h"
21 static const int firstep_table[] =
22 /* level: 0 1 2 3 4 5 6 7 8 */
23 { -4, -2, 0, 2, 4, 6, 8, 10, 12 }; /* lvl 0-8, default 2 */
25 static const int cycpwrThr1_table[] =
26 /* level: 0 1 2 3 4 5 6 7 8 */
27 { -6, -4, -2, 0, 2, 4, 6, 8 }; /* lvl 0-7, default 3 */
30 * register values to turn OFDM weak signal detection OFF
32 static const int m1ThreshLow_off = 127;
33 static const int m2ThreshLow_off = 127;
34 static const int m1Thresh_off = 127;
35 static const int m2Thresh_off = 127;
36 static const int m2CountThr_off = 31;
37 static const int m2CountThrLow_off = 63;
38 static const int m1ThreshLowExt_off = 127;
39 static const int m2ThreshLowExt_off = 127;
40 static const int m1ThreshExt_off = 127;
41 static const int m2ThreshExt_off = 127;
44 * ar9003_hw_set_channel - set channel on single-chip device
45 * @ah: atheros hardware structure
48 * This is the function to change channel on single-chip devices, that is
49 * for AR9300 family of chipsets.
51 * This function takes the channel value in MHz and sets
52 * hardware channel value. Assumes writes have been enabled to analog bus.
57 * Channel Frequency = (3/4) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
61 * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^10)
62 * (freq_ref = 40MHz/(24>>amodeRefSel))
64 * For 5GHz channels which are 5MHz spaced,
65 * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
68 static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
70 u16 bMode, fracMode = 0, aModeRefSel = 0;
71 u32 freq, chan_frac, div, channelSel = 0, reg32 = 0;
72 struct chan_centers centers;
75 ath9k_hw_get_channel_centers(ah, chan, ¢ers);
76 freq = centers.synth_center;
78 if (freq < 4800) { /* 2 GHz, fractional mode */
79 if (AR_SREV_9330(ah)) {
85 channelSel = (freq * 4) / div;
86 chan_frac = (((freq * 4) % div) * 0x20000) / div;
87 channelSel = (channelSel << 17) | chan_frac;
88 } else if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
90 * freq_ref = 40 / (refdiva >> amoderefsel);
91 * where refdiva=1 and amoderefsel=0
92 * ndiv = ((chan_mhz * 4) / 3) / freq_ref;
93 * chansel = int(ndiv), chanfrac = (ndiv - chansel) * 0x20000
95 channelSel = (freq * 4) / 120;
96 chan_frac = (((freq * 4) % 120) * 0x20000) / 120;
97 channelSel = (channelSel << 17) | chan_frac;
98 } else if (AR_SREV_9340(ah)) {
99 if (ah->is_clk_25mhz) {
100 channelSel = (freq * 2) / 75;
101 chan_frac = (((freq * 2) % 75) * 0x20000) / 75;
102 channelSel = (channelSel << 17) | chan_frac;
104 channelSel = CHANSEL_2G(freq) >> 1;
106 } else if (AR_SREV_9550(ah)) {
107 if (ah->is_clk_25mhz)
112 channelSel = (freq * 4) / div;
113 chan_frac = (((freq * 4) % div) * 0x20000) / div;
114 channelSel = (channelSel << 17) | chan_frac;
116 channelSel = CHANSEL_2G(freq);
121 if ((AR_SREV_9340(ah) || AR_SREV_9550(ah)) &&
123 channelSel = freq / 75;
124 chan_frac = ((freq % 75) * 0x20000) / 75;
125 channelSel = (channelSel << 17) | chan_frac;
127 channelSel = CHANSEL_5G(freq);
128 /* Doubler is ON, so, divide channelSel by 2. */
135 /* Enable fractional mode for all channels */
138 loadSynthChannel = 0;
140 reg32 = (bMode << 29);
141 REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32);
143 /* Enable Long shift Select for Synthesizer */
144 REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH4,
145 AR_PHY_SYNTH4_LONG_SHIFT_SELECT, 1);
147 /* Program Synth. setting */
148 reg32 = (channelSel << 2) | (fracMode << 30) |
149 (aModeRefSel << 28) | (loadSynthChannel << 31);
150 REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
152 /* Toggle Load Synth channel bit */
153 loadSynthChannel = 1;
154 reg32 = (channelSel << 2) | (fracMode << 30) |
155 (aModeRefSel << 28) | (loadSynthChannel << 31);
156 REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
164 * ar9003_hw_spur_mitigate_mrc_cck - convert baseband spur frequency
165 * @ah: atheros hardware structure
168 * For single-chip solutions. Converts to baseband spur frequency given the
169 * input channel frequency and compute register settings below.
171 * Spur mitigation for MRC CCK
173 static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
174 struct ath9k_channel *chan)
176 static const u32 spur_freq[4] = { 2420, 2440, 2464, 2480 };
177 int cur_bb_spur, negative = 0, cck_spur_freq;
179 int range, max_spur_cnts, synth_freq;
180 u8 *spur_fbin_ptr = ar9003_get_spur_chan_ptr(ah, IS_CHAN_2GHZ(chan));
183 * Need to verify range +/- 10 MHz in control channel, otherwise spur
184 * is out-of-band and can be ignored.
187 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
189 if (spur_fbin_ptr[0] == 0) /* No spur */
192 if (IS_CHAN_HT40(chan)) {
194 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
195 AR_PHY_GC_DYN2040_PRI_CH) == 0)
196 synth_freq = chan->channel + 10;
198 synth_freq = chan->channel - 10;
201 synth_freq = chan->channel;
204 range = AR_SREV_9462(ah) ? 5 : 10;
206 synth_freq = chan->channel;
209 for (i = 0; i < max_spur_cnts; i++) {
210 if (AR_SREV_9462(ah) && (i == 0 || i == 3))
214 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
216 cur_bb_spur = ath9k_hw_fbin2freq(spur_fbin_ptr[i],
219 cur_bb_spur = spur_freq[i];
221 cur_bb_spur -= synth_freq;
222 if (cur_bb_spur < 0) {
224 cur_bb_spur = -cur_bb_spur;
226 if (cur_bb_spur < range) {
227 cck_spur_freq = (int)((cur_bb_spur << 19) / 11);
230 cck_spur_freq = -cck_spur_freq;
232 cck_spur_freq = cck_spur_freq & 0xfffff;
234 REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
235 AR_PHY_AGC_CONTROL_YCOK_MAX, 0x7);
236 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
237 AR_PHY_CCK_SPUR_MIT_SPUR_RSSI_THR, 0x7f);
238 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
239 AR_PHY_CCK_SPUR_MIT_SPUR_FILTER_TYPE,
241 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
242 AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT,
244 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
245 AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ,
252 REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
253 AR_PHY_AGC_CONTROL_YCOK_MAX, 0x5);
254 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
255 AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT, 0x0);
256 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
257 AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ, 0x0);
260 /* Clean all spur register fields */
261 static void ar9003_hw_spur_ofdm_clear(struct ath_hw *ah)
263 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
264 AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0);
265 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
266 AR_PHY_TIMING11_SPUR_FREQ_SD, 0);
267 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
268 AR_PHY_TIMING11_SPUR_DELTA_PHASE, 0);
269 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
270 AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, 0);
271 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
272 AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0);
273 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
274 AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0);
275 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
276 AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0);
277 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
278 AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 0);
279 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
280 AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 0);
282 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
283 AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0);
284 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
285 AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0);
286 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
287 AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0);
288 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
289 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, 0);
290 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
291 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, 0);
292 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
293 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, 0);
294 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
295 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0);
296 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
297 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0);
298 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
299 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0);
300 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
301 AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0);
304 static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
307 int spur_delta_phase,
308 int spur_subchannel_sd,
314 /* OFDM Spur mitigation */
315 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
316 AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0x1);
317 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
318 AR_PHY_TIMING11_SPUR_FREQ_SD, spur_freq_sd);
319 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
320 AR_PHY_TIMING11_SPUR_DELTA_PHASE, spur_delta_phase);
321 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
322 AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, spur_subchannel_sd);
323 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
324 AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0x1);
326 if (!(AR_SREV_9565(ah) && range == 10 && synth_freq == 2437))
327 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
328 AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1);
330 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
331 AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0x1);
332 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
333 AR_PHY_SPUR_REG_SPUR_RSSI_THRESH, 34);
334 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
335 AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1);
337 if (REG_READ_FIELD(ah, AR_PHY_MODE,
338 AR_PHY_MODE_DYNAMIC) == 0x1)
339 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
340 AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1);
342 mask_index = (freq_offset << 4) / 5;
344 mask_index = mask_index - 1;
346 mask_index = mask_index & 0x7f;
348 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
349 AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0x1);
350 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
351 AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0x1);
352 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
353 AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0x1);
354 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
355 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, mask_index);
356 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
357 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, mask_index);
358 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
359 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, mask_index);
360 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
361 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0xc);
362 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
363 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0xc);
364 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
365 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
366 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
367 AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0xff);
370 static void ar9003_hw_spur_ofdm_9565(struct ath_hw *ah,
375 mask_index = (freq_offset << 4) / 5;
377 mask_index = mask_index - 1;
379 mask_index = mask_index & 0x7f;
381 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
382 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_B,
386 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_B,
387 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A,
390 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
391 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_B,
393 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
394 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_B, 0xe);
395 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
396 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_B, 0xe);
399 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_B,
400 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
403 static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah,
404 struct ath9k_channel *chan,
409 int spur_freq_sd = 0;
410 int spur_subchannel_sd = 0;
411 int spur_delta_phase = 0;
413 if (IS_CHAN_HT40(chan)) {
414 if (freq_offset < 0) {
415 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
416 AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
417 spur_subchannel_sd = 1;
419 spur_subchannel_sd = 0;
421 spur_freq_sd = ((freq_offset + 10) << 9) / 11;
424 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
425 AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
426 spur_subchannel_sd = 0;
428 spur_subchannel_sd = 1;
430 spur_freq_sd = ((freq_offset - 10) << 9) / 11;
434 spur_delta_phase = (freq_offset << 17) / 5;
437 spur_subchannel_sd = 0;
438 spur_freq_sd = (freq_offset << 9) /11;
439 spur_delta_phase = (freq_offset << 18) / 5;
442 spur_freq_sd = spur_freq_sd & 0x3ff;
443 spur_delta_phase = spur_delta_phase & 0xfffff;
445 ar9003_hw_spur_ofdm(ah,
453 /* Spur mitigation for OFDM */
454 static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah,
455 struct ath9k_channel *chan)
463 struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
465 if (IS_CHAN_5GHZ(chan)) {
466 spurChansPtr = &(eep->modalHeader5G.spurChans[0]);
470 spurChansPtr = &(eep->modalHeader2G.spurChans[0]);
474 if (spurChansPtr[0] == 0)
475 return; /* No spur in the mode */
477 if (IS_CHAN_HT40(chan)) {
479 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
480 AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
481 synth_freq = chan->channel - 10;
483 synth_freq = chan->channel + 10;
486 synth_freq = chan->channel;
489 ar9003_hw_spur_ofdm_clear(ah);
491 for (i = 0; i < AR_EEPROM_MODAL_SPURS && spurChansPtr[i]; i++) {
492 freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i], mode);
493 freq_offset -= synth_freq;
494 if (abs(freq_offset) < range) {
495 ar9003_hw_spur_ofdm_work(ah, chan, freq_offset,
498 if (AR_SREV_9565(ah) && (i < 4)) {
499 freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i + 1],
501 freq_offset -= synth_freq;
502 if (abs(freq_offset) < range)
503 ar9003_hw_spur_ofdm_9565(ah, freq_offset);
511 static void ar9003_hw_spur_mitigate(struct ath_hw *ah,
512 struct ath9k_channel *chan)
514 if (!AR_SREV_9565(ah))
515 ar9003_hw_spur_mitigate_mrc_cck(ah, chan);
516 ar9003_hw_spur_mitigate_ofdm(ah, chan);
519 static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
520 struct ath9k_channel *chan)
524 pll = SM(0x5, AR_RTC_9300_PLL_REFDIV);
526 if (chan && IS_CHAN_HALF_RATE(chan))
527 pll |= SM(0x1, AR_RTC_9300_PLL_CLKSEL);
528 else if (chan && IS_CHAN_QUARTER_RATE(chan))
529 pll |= SM(0x2, AR_RTC_9300_PLL_CLKSEL);
531 pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);
536 static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
537 struct ath9k_channel *chan)
540 u32 enableDacFifo = 0;
543 (REG_READ(ah, AR_PHY_GEN_CTRL) & AR_PHY_GC_ENABLE_DAC_FIFO);
545 /* Enable 11n HT, 20 MHz */
546 phymode = AR_PHY_GC_HT_EN | AR_PHY_GC_SINGLE_HT_LTF1 |
547 AR_PHY_GC_SHORT_GI_40 | enableDacFifo;
549 /* Configure baseband for dynamic 20/40 operation */
550 if (IS_CHAN_HT40(chan)) {
551 phymode |= AR_PHY_GC_DYN2040_EN;
552 /* Configure control (primary) channel at +-10MHz */
553 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
554 (chan->chanmode == CHANNEL_G_HT40PLUS))
555 phymode |= AR_PHY_GC_DYN2040_PRI_CH;
559 /* make sure we preserve INI settings */
560 phymode |= REG_READ(ah, AR_PHY_GEN_CTRL);
561 /* turn off Green Field detection for STA for now */
562 phymode &= ~AR_PHY_GC_GF_DETECT_EN;
564 REG_WRITE(ah, AR_PHY_GEN_CTRL, phymode);
566 /* Configure MAC for 20/40 operation */
567 ath9k_hw_set11nmac2040(ah);
569 /* global transmit timeout (25 TUs default)*/
570 REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
571 /* carrier sense timeout */
572 REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
575 static void ar9003_hw_init_bb(struct ath_hw *ah,
576 struct ath9k_channel *chan)
581 * Wait for the frequency synth to settle (synth goes on
582 * via AR_PHY_ACTIVE_EN). Read the phy active delay register.
583 * Value is in 100ns increments.
585 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
587 /* Activate the PHY (includes baseband activate + synthesizer on) */
588 REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
589 ath9k_hw_synth_delay(ah, chan, synthDelay);
592 void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
594 if (ah->caps.tx_chainmask == 5 || ah->caps.rx_chainmask == 5)
595 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
596 AR_PHY_SWAP_ALT_CHAIN);
598 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx);
599 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx);
601 if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && (tx == 0x7))
604 REG_WRITE(ah, AR_SELFGEN_MASK, tx);
608 * Override INI values with chip specific configuration.
610 static void ar9003_hw_override_ini(struct ath_hw *ah)
615 * Set the RX_ABORT and RX_DIS and clear it only after
616 * RXE is set for MAC. This prevents frames with
617 * corrupted descriptor status.
619 REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
622 * For AR9280 and above, there is a new feature that allows
623 * Multicast search based on both MAC Address and Key ID. By default,
624 * this feature is enabled. But since the driver is not using this
625 * feature, we switch it off; otherwise multicast search based on
626 * MAC addr only will fail.
628 val = REG_READ(ah, AR_PCU_MISC_MODE2) & (~AR_ADHOC_MCAST_KEYID_ENABLE);
629 REG_WRITE(ah, AR_PCU_MISC_MODE2,
630 val | AR_AGG_WEP_ENABLE_FIX | AR_AGG_WEP_ENABLE);
632 REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
633 AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV);
636 static void ar9003_hw_prog_ini(struct ath_hw *ah,
637 struct ar5416IniArray *iniArr,
640 unsigned int i, regWrites = 0;
642 /* New INI format: Array may be undefined (pre, core, post arrays) */
643 if (!iniArr->ia_array)
647 * New INI format: Pre, core, and post arrays for a given subsystem
648 * may be modal (> 2 columns) or non-modal (2 columns). Determine if
649 * the array is non-modal and force the column to 1.
651 if (column >= iniArr->ia_columns)
654 for (i = 0; i < iniArr->ia_rows; i++) {
655 u32 reg = INI_RA(iniArr, i, 0);
656 u32 val = INI_RA(iniArr, i, column);
658 REG_WRITE(ah, reg, val);
664 static int ar9550_hw_get_modes_txgain_index(struct ath_hw *ah,
665 struct ath9k_channel *chan)
669 switch (chan->chanmode) {
672 if (chan->channel <= 5350)
674 else if ((chan->channel > 5350) && (chan->channel <= 5600))
680 case CHANNEL_A_HT40PLUS:
681 case CHANNEL_A_HT40MINUS:
682 if (chan->channel <= 5350)
684 else if ((chan->channel > 5350) && (chan->channel <= 5600))
696 case CHANNEL_G_HT40PLUS:
697 case CHANNEL_G_HT40MINUS:
708 static int ar9003_hw_process_ini(struct ath_hw *ah,
709 struct ath9k_channel *chan)
711 unsigned int regWrites = 0, i;
714 switch (chan->chanmode) {
719 case CHANNEL_A_HT40PLUS:
720 case CHANNEL_A_HT40MINUS:
728 case CHANNEL_G_HT40PLUS:
729 case CHANNEL_G_HT40MINUS:
737 for (i = 0; i < ATH_INI_NUM_SPLIT; i++) {
738 ar9003_hw_prog_ini(ah, &ah->iniSOC[i], modesIndex);
739 ar9003_hw_prog_ini(ah, &ah->iniMac[i], modesIndex);
740 ar9003_hw_prog_ini(ah, &ah->iniBB[i], modesIndex);
741 ar9003_hw_prog_ini(ah, &ah->iniRadio[i], modesIndex);
742 if (i == ATH_INI_POST && AR_SREV_9462_20(ah))
743 ar9003_hw_prog_ini(ah,
744 &ah->ini_radio_post_sys2ant,
748 REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites);
749 if (AR_SREV_9550(ah))
750 REG_WRITE_ARRAY(&ah->ini_modes_rx_gain_bounds, modesIndex,
753 if (AR_SREV_9550(ah)) {
754 int modes_txgain_index;
756 modes_txgain_index = ar9550_hw_get_modes_txgain_index(ah, chan);
757 if (modes_txgain_index < 0)
760 REG_WRITE_ARRAY(&ah->iniModesTxGain, modes_txgain_index,
763 REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
767 * For 5GHz channels requiring Fast Clock, apply
768 * different modal values.
770 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
771 REG_WRITE_ARRAY(&ah->iniModesFastClock,
772 modesIndex, regWrites);
774 REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites);
776 if (chan->channel == 2484)
777 ar9003_hw_prog_ini(ah, &ah->iniCckfirJapan2484, 1);
779 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
780 REG_WRITE(ah, AR_GLB_SWREG_DISCONT_MODE,
781 AR_GLB_SWREG_DISCONT_EN_BT_WLAN);
783 ah->modes_index = modesIndex;
784 ar9003_hw_override_ini(ah);
785 ar9003_hw_set_channel_regs(ah, chan);
786 ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
787 ath9k_hw_apply_txpower(ah, chan, false);
789 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
790 if (REG_READ_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_0,
791 AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL))
792 ah->enabled_cals |= TX_IQ_CAL;
794 ah->enabled_cals &= ~TX_IQ_CAL;
796 if (REG_READ(ah, AR_PHY_CL_CAL_CTL) & AR_PHY_CL_CAL_ENABLE)
797 ah->enabled_cals |= TX_CL_CAL;
799 ah->enabled_cals &= ~TX_CL_CAL;
805 static void ar9003_hw_set_rfmode(struct ath_hw *ah,
806 struct ath9k_channel *chan)
813 rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
814 ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
816 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
817 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
818 if (IS_CHAN_QUARTER_RATE(chan))
819 rfMode |= AR_PHY_MODE_QUARTER;
820 if (IS_CHAN_HALF_RATE(chan))
821 rfMode |= AR_PHY_MODE_HALF;
823 if (rfMode & (AR_PHY_MODE_QUARTER | AR_PHY_MODE_HALF))
824 REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL,
825 AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW, 3);
827 REG_WRITE(ah, AR_PHY_MODE, rfMode);
830 static void ar9003_hw_mark_phy_inactive(struct ath_hw *ah)
832 REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
835 static void ar9003_hw_set_delta_slope(struct ath_hw *ah,
836 struct ath9k_channel *chan)
838 u32 coef_scaled, ds_coef_exp, ds_coef_man;
839 u32 clockMhzScaled = 0x64000000;
840 struct chan_centers centers;
843 * half and quarter rate can divide the scaled clock by 2 or 4
844 * scale for selected channel bandwidth
846 if (IS_CHAN_HALF_RATE(chan))
847 clockMhzScaled = clockMhzScaled >> 1;
848 else if (IS_CHAN_QUARTER_RATE(chan))
849 clockMhzScaled = clockMhzScaled >> 2;
852 * ALGO -> coef = 1e8/fcarrier*fclock/40;
853 * scaled coef to provide precision for this floating calculation
855 ath9k_hw_get_channel_centers(ah, chan, ¢ers);
856 coef_scaled = clockMhzScaled / centers.synth_center;
858 ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
861 REG_RMW_FIELD(ah, AR_PHY_TIMING3,
862 AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
863 REG_RMW_FIELD(ah, AR_PHY_TIMING3,
864 AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
868 * scaled coeff is 9/10 that of normal coeff
870 coef_scaled = (9 * coef_scaled) / 10;
872 ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
876 REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
877 AR_PHY_SGI_DSC_MAN, ds_coef_man);
878 REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
879 AR_PHY_SGI_DSC_EXP, ds_coef_exp);
882 static bool ar9003_hw_rfbus_req(struct ath_hw *ah)
884 REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
885 return ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
886 AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT);
890 * Wait for the frequency synth to settle (synth goes on via PHY_ACTIVE_EN).
891 * Read the phy active delay register. Value is in 100ns increments.
893 static void ar9003_hw_rfbus_done(struct ath_hw *ah)
895 u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
897 ath9k_hw_synth_delay(ah, ah->curchan, synthDelay);
899 REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
902 static bool ar9003_hw_ani_control(struct ath_hw *ah,
903 enum ath9k_ani_cmd cmd, int param)
905 struct ath_common *common = ath9k_hw_common(ah);
906 struct ath9k_channel *chan = ah->curchan;
907 struct ar5416AniState *aniState = &ah->ani;
910 switch (cmd & ah->ani_function) {
911 case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{
913 * on == 1 means ofdm weak signal detection is ON
914 * on == 1 is the default, for less noise immunity
916 * on == 0 means ofdm weak signal detection is OFF
917 * on == 0 means more noise imm
919 u32 on = param ? 1 : 0;
922 REG_SET_BIT(ah, AR_PHY_SFCORR_LOW,
923 AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
925 REG_CLR_BIT(ah, AR_PHY_SFCORR_LOW,
926 AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
928 if (on != aniState->ofdmWeakSigDetect) {
930 "** ch %d: ofdm weak signal: %s=>%s\n",
932 aniState->ofdmWeakSigDetect ?
936 ah->stats.ast_ani_ofdmon++;
938 ah->stats.ast_ani_ofdmoff++;
939 aniState->ofdmWeakSigDetect = on;
943 case ATH9K_ANI_FIRSTEP_LEVEL:{
946 if (level >= ARRAY_SIZE(firstep_table)) {
948 "ATH9K_ANI_FIRSTEP_LEVEL: level out of range (%u > %zu)\n",
949 level, ARRAY_SIZE(firstep_table));
954 * make register setting relative to default
955 * from INI file & cap value
957 value = firstep_table[level] -
958 firstep_table[ATH9K_ANI_FIRSTEP_LVL] +
959 aniState->iniDef.firstep;
960 if (value < ATH9K_SIG_FIRSTEP_SETTING_MIN)
961 value = ATH9K_SIG_FIRSTEP_SETTING_MIN;
962 if (value > ATH9K_SIG_FIRSTEP_SETTING_MAX)
963 value = ATH9K_SIG_FIRSTEP_SETTING_MAX;
964 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
965 AR_PHY_FIND_SIG_FIRSTEP,
968 * we need to set first step low register too
969 * make register setting relative to default
970 * from INI file & cap value
972 value2 = firstep_table[level] -
973 firstep_table[ATH9K_ANI_FIRSTEP_LVL] +
974 aniState->iniDef.firstepLow;
975 if (value2 < ATH9K_SIG_FIRSTEP_SETTING_MIN)
976 value2 = ATH9K_SIG_FIRSTEP_SETTING_MIN;
977 if (value2 > ATH9K_SIG_FIRSTEP_SETTING_MAX)
978 value2 = ATH9K_SIG_FIRSTEP_SETTING_MAX;
980 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW,
981 AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW, value2);
983 if (level != aniState->firstepLevel) {
985 "** ch %d: level %d=>%d[def:%d] firstep[level]=%d ini=%d\n",
987 aniState->firstepLevel,
989 ATH9K_ANI_FIRSTEP_LVL,
991 aniState->iniDef.firstep);
993 "** ch %d: level %d=>%d[def:%d] firstep_low[level]=%d ini=%d\n",
995 aniState->firstepLevel,
997 ATH9K_ANI_FIRSTEP_LVL,
999 aniState->iniDef.firstepLow);
1000 if (level > aniState->firstepLevel)
1001 ah->stats.ast_ani_stepup++;
1002 else if (level < aniState->firstepLevel)
1003 ah->stats.ast_ani_stepdown++;
1004 aniState->firstepLevel = level;
1008 case ATH9K_ANI_SPUR_IMMUNITY_LEVEL:{
1011 if (level >= ARRAY_SIZE(cycpwrThr1_table)) {
1012 ath_dbg(common, ANI,
1013 "ATH9K_ANI_SPUR_IMMUNITY_LEVEL: level out of range (%u > %zu)\n",
1014 level, ARRAY_SIZE(cycpwrThr1_table));
1018 * make register setting relative to default
1019 * from INI file & cap value
1021 value = cycpwrThr1_table[level] -
1022 cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL] +
1023 aniState->iniDef.cycpwrThr1;
1024 if (value < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
1025 value = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
1026 if (value > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
1027 value = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
1028 REG_RMW_FIELD(ah, AR_PHY_TIMING5,
1029 AR_PHY_TIMING5_CYCPWR_THR1,
1033 * set AR_PHY_EXT_CCA for extension channel
1034 * make register setting relative to default
1035 * from INI file & cap value
1037 value2 = cycpwrThr1_table[level] -
1038 cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL] +
1039 aniState->iniDef.cycpwrThr1Ext;
1040 if (value2 < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
1041 value2 = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
1042 if (value2 > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
1043 value2 = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
1044 REG_RMW_FIELD(ah, AR_PHY_EXT_CCA,
1045 AR_PHY_EXT_CYCPWR_THR1, value2);
1047 if (level != aniState->spurImmunityLevel) {
1048 ath_dbg(common, ANI,
1049 "** ch %d: level %d=>%d[def:%d] cycpwrThr1[level]=%d ini=%d\n",
1051 aniState->spurImmunityLevel,
1053 ATH9K_ANI_SPUR_IMMUNE_LVL,
1055 aniState->iniDef.cycpwrThr1);
1056 ath_dbg(common, ANI,
1057 "** ch %d: level %d=>%d[def:%d] cycpwrThr1Ext[level]=%d ini=%d\n",
1059 aniState->spurImmunityLevel,
1061 ATH9K_ANI_SPUR_IMMUNE_LVL,
1063 aniState->iniDef.cycpwrThr1Ext);
1064 if (level > aniState->spurImmunityLevel)
1065 ah->stats.ast_ani_spurup++;
1066 else if (level < aniState->spurImmunityLevel)
1067 ah->stats.ast_ani_spurdown++;
1068 aniState->spurImmunityLevel = level;
1072 case ATH9K_ANI_MRC_CCK:{
1074 * is_on == 1 means MRC CCK ON (default, less noise imm)
1075 * is_on == 0 means MRC CCK is OFF (more noise imm)
1077 bool is_on = param ? 1 : 0;
1078 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
1079 AR_PHY_MRC_CCK_ENABLE, is_on);
1080 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
1081 AR_PHY_MRC_CCK_MUX_REG, is_on);
1082 if (is_on != aniState->mrcCCK) {
1083 ath_dbg(common, ANI, "** ch %d: MRC CCK: %s=>%s\n",
1085 aniState->mrcCCK ? "on" : "off",
1086 is_on ? "on" : "off");
1088 ah->stats.ast_ani_ccklow++;
1090 ah->stats.ast_ani_cckhigh++;
1091 aniState->mrcCCK = is_on;
1095 case ATH9K_ANI_PRESENT:
1098 ath_dbg(common, ANI, "invalid cmd %u\n", cmd);
1102 ath_dbg(common, ANI,
1103 "ANI parameters: SI=%d, ofdmWS=%s FS=%d MRCcck=%s listenTime=%d ofdmErrs=%d cckErrs=%d\n",
1104 aniState->spurImmunityLevel,
1105 aniState->ofdmWeakSigDetect ? "on" : "off",
1106 aniState->firstepLevel,
1107 aniState->mrcCCK ? "on" : "off",
1108 aniState->listenTime,
1109 aniState->ofdmPhyErrCount,
1110 aniState->cckPhyErrCount);
1114 static void ar9003_hw_do_getnf(struct ath_hw *ah,
1115 int16_t nfarray[NUM_NF_READINGS])
1117 #define AR_PHY_CH_MINCCA_PWR 0x1FF00000
1118 #define AR_PHY_CH_MINCCA_PWR_S 20
1119 #define AR_PHY_CH_EXT_MINCCA_PWR 0x01FF0000
1120 #define AR_PHY_CH_EXT_MINCCA_PWR_S 16
1125 for (i = 0; i < AR9300_MAX_CHAINS; i++) {
1126 if (ah->rxchainmask & BIT(i)) {
1127 nf = MS(REG_READ(ah, ah->nf_regs[i]),
1128 AR_PHY_CH_MINCCA_PWR);
1129 nfarray[i] = sign_extend32(nf, 8);
1131 if (IS_CHAN_HT40(ah->curchan)) {
1132 u8 ext_idx = AR9300_MAX_CHAINS + i;
1134 nf = MS(REG_READ(ah, ah->nf_regs[ext_idx]),
1135 AR_PHY_CH_EXT_MINCCA_PWR);
1136 nfarray[ext_idx] = sign_extend32(nf, 8);
1142 static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
1144 ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
1145 ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
1146 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
1147 ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
1148 ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
1149 ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9300_5GHZ;
1151 if (AR_SREV_9330(ah))
1152 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9330_2GHZ;
1154 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
1155 ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_2GHZ;
1156 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9462_2GHZ;
1157 ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_5GHZ;
1158 ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9462_5GHZ;
1163 * Initialize the ANI register values with default (ini) values.
1164 * This routine is called during a (full) hardware reset after
1165 * all the registers are initialised from the INI.
1167 static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah)
1169 struct ar5416AniState *aniState;
1170 struct ath_common *common = ath9k_hw_common(ah);
1171 struct ath9k_channel *chan = ah->curchan;
1172 struct ath9k_ani_default *iniDef;
1175 aniState = &ah->ani;
1176 iniDef = &aniState->iniDef;
1178 ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz/0x%x\n",
1179 ah->hw_version.macVersion,
1180 ah->hw_version.macRev,
1183 chan->channelFlags);
1185 val = REG_READ(ah, AR_PHY_SFCORR);
1186 iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH);
1187 iniDef->m2Thresh = MS(val, AR_PHY_SFCORR_M2_THRESH);
1188 iniDef->m2CountThr = MS(val, AR_PHY_SFCORR_M2COUNT_THR);
1190 val = REG_READ(ah, AR_PHY_SFCORR_LOW);
1191 iniDef->m1ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M1_THRESH_LOW);
1192 iniDef->m2ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M2_THRESH_LOW);
1193 iniDef->m2CountThrLow = MS(val, AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW);
1195 val = REG_READ(ah, AR_PHY_SFCORR_EXT);
1196 iniDef->m1ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH);
1197 iniDef->m2ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH);
1198 iniDef->m1ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH_LOW);
1199 iniDef->m2ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH_LOW);
1200 iniDef->firstep = REG_READ_FIELD(ah,
1202 AR_PHY_FIND_SIG_FIRSTEP);
1203 iniDef->firstepLow = REG_READ_FIELD(ah,
1204 AR_PHY_FIND_SIG_LOW,
1205 AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW);
1206 iniDef->cycpwrThr1 = REG_READ_FIELD(ah,
1208 AR_PHY_TIMING5_CYCPWR_THR1);
1209 iniDef->cycpwrThr1Ext = REG_READ_FIELD(ah,
1211 AR_PHY_EXT_CYCPWR_THR1);
1213 /* these levels just got reset to defaults by the INI */
1214 aniState->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL;
1215 aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL;
1216 aniState->ofdmWeakSigDetect = true;
1217 aniState->mrcCCK = true;
1220 static void ar9003_hw_set_radar_params(struct ath_hw *ah,
1221 struct ath_hw_radar_conf *conf)
1223 u32 radar_0 = 0, radar_1 = 0;
1226 REG_CLR_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_ENA);
1230 radar_0 |= AR_PHY_RADAR_0_ENA | AR_PHY_RADAR_0_FFT_ENA;
1231 radar_0 |= SM(conf->fir_power, AR_PHY_RADAR_0_FIRPWR);
1232 radar_0 |= SM(conf->radar_rssi, AR_PHY_RADAR_0_RRSSI);
1233 radar_0 |= SM(conf->pulse_height, AR_PHY_RADAR_0_HEIGHT);
1234 radar_0 |= SM(conf->pulse_rssi, AR_PHY_RADAR_0_PRSSI);
1235 radar_0 |= SM(conf->pulse_inband, AR_PHY_RADAR_0_INBAND);
1237 radar_1 |= AR_PHY_RADAR_1_MAX_RRSSI;
1238 radar_1 |= AR_PHY_RADAR_1_BLOCK_CHECK;
1239 radar_1 |= SM(conf->pulse_maxlen, AR_PHY_RADAR_1_MAXLEN);
1240 radar_1 |= SM(conf->pulse_inband_step, AR_PHY_RADAR_1_RELSTEP_THRESH);
1241 radar_1 |= SM(conf->radar_inband, AR_PHY_RADAR_1_RELPWR_THRESH);
1243 REG_WRITE(ah, AR_PHY_RADAR_0, radar_0);
1244 REG_WRITE(ah, AR_PHY_RADAR_1, radar_1);
1245 if (conf->ext_channel)
1246 REG_SET_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA);
1248 REG_CLR_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA);
1251 static void ar9003_hw_set_radar_conf(struct ath_hw *ah)
1253 struct ath_hw_radar_conf *conf = &ah->radar_conf;
1255 conf->fir_power = -28;
1256 conf->radar_rssi = 0;
1257 conf->pulse_height = 10;
1258 conf->pulse_rssi = 24;
1259 conf->pulse_inband = 8;
1260 conf->pulse_maxlen = 255;
1261 conf->pulse_inband_step = 12;
1262 conf->radar_inband = 8;
1265 static void ar9003_hw_antdiv_comb_conf_get(struct ath_hw *ah,
1266 struct ath_hw_antcomb_conf *antconf)
1270 regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1271 antconf->main_lna_conf = (regval & AR_PHY_ANT_DIV_MAIN_LNACONF) >>
1272 AR_PHY_ANT_DIV_MAIN_LNACONF_S;
1273 antconf->alt_lna_conf = (regval & AR_PHY_ANT_DIV_ALT_LNACONF) >>
1274 AR_PHY_ANT_DIV_ALT_LNACONF_S;
1275 antconf->fast_div_bias = (regval & AR_PHY_ANT_FAST_DIV_BIAS) >>
1276 AR_PHY_ANT_FAST_DIV_BIAS_S;
1278 if (AR_SREV_9330_11(ah)) {
1279 antconf->lna1_lna2_delta = -9;
1280 antconf->div_group = 1;
1281 } else if (AR_SREV_9485(ah)) {
1282 antconf->lna1_lna2_delta = -9;
1283 antconf->div_group = 2;
1284 } else if (AR_SREV_9565(ah)) {
1285 antconf->lna1_lna2_delta = -3;
1286 antconf->div_group = 3;
1288 antconf->lna1_lna2_delta = -3;
1289 antconf->div_group = 0;
1293 static void ar9003_hw_antdiv_comb_conf_set(struct ath_hw *ah,
1294 struct ath_hw_antcomb_conf *antconf)
1298 regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1299 regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF |
1300 AR_PHY_ANT_DIV_ALT_LNACONF |
1301 AR_PHY_ANT_FAST_DIV_BIAS |
1302 AR_PHY_ANT_DIV_MAIN_GAINTB |
1303 AR_PHY_ANT_DIV_ALT_GAINTB);
1304 regval |= ((antconf->main_lna_conf << AR_PHY_ANT_DIV_MAIN_LNACONF_S)
1305 & AR_PHY_ANT_DIV_MAIN_LNACONF);
1306 regval |= ((antconf->alt_lna_conf << AR_PHY_ANT_DIV_ALT_LNACONF_S)
1307 & AR_PHY_ANT_DIV_ALT_LNACONF);
1308 regval |= ((antconf->fast_div_bias << AR_PHY_ANT_FAST_DIV_BIAS_S)
1309 & AR_PHY_ANT_FAST_DIV_BIAS);
1310 regval |= ((antconf->main_gaintb << AR_PHY_ANT_DIV_MAIN_GAINTB_S)
1311 & AR_PHY_ANT_DIV_MAIN_GAINTB);
1312 regval |= ((antconf->alt_gaintb << AR_PHY_ANT_DIV_ALT_GAINTB_S)
1313 & AR_PHY_ANT_DIV_ALT_GAINTB);
1315 REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
1318 static void ar9003_hw_antctrl_shared_chain_lnadiv(struct ath_hw *ah,
1324 if (!AR_SREV_9565(ah))
1327 ah->shared_chain_lnadiv = enable;
1328 ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
1330 regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1331 regval &= (~AR_ANT_DIV_CTRL_ALL);
1332 regval |= (ant_div_ctl1 & 0x3f) << AR_ANT_DIV_CTRL_ALL_S;
1333 regval &= ~AR_PHY_ANT_DIV_LNADIV;
1334 regval |= ((ant_div_ctl1 >> 6) & 0x1) << AR_PHY_ANT_DIV_LNADIV_S;
1337 regval |= AR_ANT_DIV_ENABLE;
1339 REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
1341 regval = REG_READ(ah, AR_PHY_CCK_DETECT);
1342 regval &= ~AR_FAST_DIV_ENABLE;
1343 regval |= ((ant_div_ctl1 >> 7) & 0x1) << AR_FAST_DIV_ENABLE_S;
1346 regval |= AR_FAST_DIV_ENABLE;
1348 REG_WRITE(ah, AR_PHY_CCK_DETECT, regval);
1351 REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL,
1352 (1 << AR_PHY_ANT_SW_RX_PROT_S));
1353 if (ah->curchan && IS_CHAN_2GHZ(ah->curchan))
1354 REG_SET_BIT(ah, AR_PHY_RESTART,
1355 AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
1356 REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV,
1357 AR_BTCOEX_WL_LNADIV_FORCE_ON);
1359 REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL, AR_ANT_DIV_ENABLE);
1360 REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL,
1361 (1 << AR_PHY_ANT_SW_RX_PROT_S));
1362 REG_CLR_BIT(ah, AR_PHY_CCK_DETECT, AR_FAST_DIV_ENABLE);
1363 REG_CLR_BIT(ah, AR_BTCOEX_WL_LNADIV,
1364 AR_BTCOEX_WL_LNADIV_FORCE_ON);
1366 regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1367 regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF |
1368 AR_PHY_ANT_DIV_ALT_LNACONF |
1369 AR_PHY_ANT_DIV_MAIN_GAINTB |
1370 AR_PHY_ANT_DIV_ALT_GAINTB);
1371 regval |= (AR_PHY_ANT_DIV_LNA1 << AR_PHY_ANT_DIV_MAIN_LNACONF_S);
1372 regval |= (AR_PHY_ANT_DIV_LNA2 << AR_PHY_ANT_DIV_ALT_LNACONF_S);
1373 REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
1377 static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
1378 struct ath9k_channel *chan,
1381 unsigned int regWrites = 0;
1384 switch (chan->chanmode) {
1386 case CHANNEL_A_HT20:
1389 case CHANNEL_A_HT40PLUS:
1390 case CHANNEL_A_HT40MINUS:
1394 case CHANNEL_G_HT20:
1398 case CHANNEL_G_HT40PLUS:
1399 case CHANNEL_G_HT40MINUS:
1407 if (modesIndex == ah->modes_index) {
1408 *ini_reloaded = false;
1412 ar9003_hw_prog_ini(ah, &ah->iniSOC[ATH_INI_POST], modesIndex);
1413 ar9003_hw_prog_ini(ah, &ah->iniMac[ATH_INI_POST], modesIndex);
1414 ar9003_hw_prog_ini(ah, &ah->iniBB[ATH_INI_POST], modesIndex);
1415 ar9003_hw_prog_ini(ah, &ah->iniRadio[ATH_INI_POST], modesIndex);
1417 if (AR_SREV_9462_20(ah))
1418 ar9003_hw_prog_ini(ah, &ah->ini_radio_post_sys2ant,
1421 REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
1424 * For 5GHz channels requiring Fast Clock, apply
1425 * different modal values.
1427 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1428 REG_WRITE_ARRAY(&ah->iniModesFastClock, modesIndex, regWrites);
1430 if (AR_SREV_9565(ah))
1431 REG_WRITE_ARRAY(&ah->iniModesFastClock, 1, regWrites);
1433 REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites);
1435 ah->modes_index = modesIndex;
1436 *ini_reloaded = true;
1439 ar9003_hw_set_rfmode(ah, chan);
1443 static void ar9003_hw_spectral_scan_config(struct ath_hw *ah,
1444 struct ath_spec_scan *param)
1448 if (!param->enabled) {
1449 REG_CLR_BIT(ah, AR_PHY_SPECTRAL_SCAN,
1450 AR_PHY_SPECTRAL_SCAN_ENABLE);
1454 REG_SET_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_FFT_ENA);
1455 REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN, AR_PHY_SPECTRAL_SCAN_ENABLE);
1457 /* on AR93xx and newer, count = 0 will make the the chip send
1458 * spectral samples endlessly. Check if this really was intended,
1459 * and fix otherwise.
1461 count = param->count;
1464 else if (param->count == 0)
1467 if (param->short_repeat)
1468 REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN,
1469 AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT);
1471 REG_CLR_BIT(ah, AR_PHY_SPECTRAL_SCAN,
1472 AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT);
1474 REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN,
1475 AR_PHY_SPECTRAL_SCAN_COUNT, count);
1476 REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN,
1477 AR_PHY_SPECTRAL_SCAN_PERIOD, param->period);
1478 REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN,
1479 AR_PHY_SPECTRAL_SCAN_FFT_PERIOD, param->fft_period);
1484 static void ar9003_hw_spectral_scan_trigger(struct ath_hw *ah)
1486 /* Activate spectral scan */
1487 REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN,
1488 AR_PHY_SPECTRAL_SCAN_ACTIVE);
1491 static void ar9003_hw_spectral_scan_wait(struct ath_hw *ah)
1493 struct ath_common *common = ath9k_hw_common(ah);
1495 /* Poll for spectral scan complete */
1496 if (!ath9k_hw_wait(ah, AR_PHY_SPECTRAL_SCAN,
1497 AR_PHY_SPECTRAL_SCAN_ACTIVE,
1498 0, AH_WAIT_TIMEOUT)) {
1499 ath_err(common, "spectral scan wait failed\n");
1504 void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
1506 struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
1507 struct ath_hw_ops *ops = ath9k_hw_ops(ah);
1508 static const u32 ar9300_cca_regs[6] = {
1517 priv_ops->rf_set_freq = ar9003_hw_set_channel;
1518 priv_ops->spur_mitigate_freq = ar9003_hw_spur_mitigate;
1519 priv_ops->compute_pll_control = ar9003_hw_compute_pll_control;
1520 priv_ops->set_channel_regs = ar9003_hw_set_channel_regs;
1521 priv_ops->init_bb = ar9003_hw_init_bb;
1522 priv_ops->process_ini = ar9003_hw_process_ini;
1523 priv_ops->set_rfmode = ar9003_hw_set_rfmode;
1524 priv_ops->mark_phy_inactive = ar9003_hw_mark_phy_inactive;
1525 priv_ops->set_delta_slope = ar9003_hw_set_delta_slope;
1526 priv_ops->rfbus_req = ar9003_hw_rfbus_req;
1527 priv_ops->rfbus_done = ar9003_hw_rfbus_done;
1528 priv_ops->ani_control = ar9003_hw_ani_control;
1529 priv_ops->do_getnf = ar9003_hw_do_getnf;
1530 priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs;
1531 priv_ops->set_radar_params = ar9003_hw_set_radar_params;
1532 priv_ops->fast_chan_change = ar9003_hw_fast_chan_change;
1534 ops->antdiv_comb_conf_get = ar9003_hw_antdiv_comb_conf_get;
1535 ops->antdiv_comb_conf_set = ar9003_hw_antdiv_comb_conf_set;
1536 ops->antctrl_shared_chain_lnadiv = ar9003_hw_antctrl_shared_chain_lnadiv;
1537 ops->spectral_scan_config = ar9003_hw_spectral_scan_config;
1538 ops->spectral_scan_trigger = ar9003_hw_spectral_scan_trigger;
1539 ops->spectral_scan_wait = ar9003_hw_spectral_scan_wait;
1541 ar9003_hw_set_nf_limits(ah);
1542 ar9003_hw_set_radar_conf(ah);
1543 memcpy(ah->nf_regs, ar9300_cca_regs, sizeof(ah->nf_regs));
1546 void ar9003_hw_bb_watchdog_config(struct ath_hw *ah)
1548 struct ath_common *common = ath9k_hw_common(ah);
1549 u32 idle_tmo_ms = ah->bb_watchdog_timeout_ms;
1550 u32 val, idle_count;
1553 /* disable IRQ, disable chip-reset for BB panic */
1554 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
1555 REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) &
1556 ~(AR_PHY_WATCHDOG_RST_ENABLE |
1557 AR_PHY_WATCHDOG_IRQ_ENABLE));
1559 /* disable watchdog in non-IDLE mode, disable in IDLE mode */
1560 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
1561 REG_READ(ah, AR_PHY_WATCHDOG_CTL_1) &
1562 ~(AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
1563 AR_PHY_WATCHDOG_IDLE_ENABLE));
1565 ath_dbg(common, RESET, "Disabled BB Watchdog\n");
1569 /* enable IRQ, disable chip-reset for BB watchdog */
1570 val = REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) & AR_PHY_WATCHDOG_CNTL2_MASK;
1571 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
1572 (val | AR_PHY_WATCHDOG_IRQ_ENABLE) &
1573 ~AR_PHY_WATCHDOG_RST_ENABLE);
1575 /* bound limit to 10 secs */
1576 if (idle_tmo_ms > 10000)
1577 idle_tmo_ms = 10000;
1580 * The time unit for watchdog event is 2^15 44/88MHz cycles.
1582 * For HT20 we have a time unit of 2^15/44 MHz = .74 ms per tick
1583 * For HT40 we have a time unit of 2^15/88 MHz = .37 ms per tick
1585 * Given we use fast clock now in 5 GHz, these time units should
1586 * be common for both 2 GHz and 5 GHz.
1588 idle_count = (100 * idle_tmo_ms) / 74;
1589 if (ah->curchan && IS_CHAN_HT40(ah->curchan))
1590 idle_count = (100 * idle_tmo_ms) / 37;
1593 * enable watchdog in non-IDLE mode, disable in IDLE mode,
1594 * set idle time-out.
1596 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
1597 AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
1598 AR_PHY_WATCHDOG_IDLE_MASK |
1599 (AR_PHY_WATCHDOG_NON_IDLE_MASK & (idle_count << 2)));
1601 ath_dbg(common, RESET, "Enabled BB Watchdog timeout (%u ms)\n",
1605 void ar9003_hw_bb_watchdog_read(struct ath_hw *ah)
1608 * we want to avoid printing in ISR context so we save the
1609 * watchdog status to be printed later in bottom half context.
1611 ah->bb_watchdog_last_status = REG_READ(ah, AR_PHY_WATCHDOG_STATUS);
1614 * the watchdog timer should reset on status read but to be sure
1615 * sure we write 0 to the watchdog status bit.
1617 REG_WRITE(ah, AR_PHY_WATCHDOG_STATUS,
1618 ah->bb_watchdog_last_status & ~AR_PHY_WATCHDOG_STATUS_CLR);
1621 void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah)
1623 struct ath_common *common = ath9k_hw_common(ah);
1626 if (likely(!(common->debug_mask & ATH_DBG_RESET)))
1629 status = ah->bb_watchdog_last_status;
1630 ath_dbg(common, RESET,
1631 "\n==== BB update: BB status=0x%08x ====\n", status);
1632 ath_dbg(common, RESET,
1633 "** BB state: wd=%u det=%u rdar=%u rOFDM=%d rCCK=%u tOFDM=%u tCCK=%u agc=%u src=%u **\n",
1634 MS(status, AR_PHY_WATCHDOG_INFO),
1635 MS(status, AR_PHY_WATCHDOG_DET_HANG),
1636 MS(status, AR_PHY_WATCHDOG_RADAR_SM),
1637 MS(status, AR_PHY_WATCHDOG_RX_OFDM_SM),
1638 MS(status, AR_PHY_WATCHDOG_RX_CCK_SM),
1639 MS(status, AR_PHY_WATCHDOG_TX_OFDM_SM),
1640 MS(status, AR_PHY_WATCHDOG_TX_CCK_SM),
1641 MS(status, AR_PHY_WATCHDOG_AGC_SM),
1642 MS(status, AR_PHY_WATCHDOG_SRCH_SM));
1644 ath_dbg(common, RESET, "** BB WD cntl: cntl1=0x%08x cntl2=0x%08x **\n",
1645 REG_READ(ah, AR_PHY_WATCHDOG_CTL_1),
1646 REG_READ(ah, AR_PHY_WATCHDOG_CTL_2));
1647 ath_dbg(common, RESET, "** BB mode: BB_gen_controls=0x%08x **\n",
1648 REG_READ(ah, AR_PHY_GEN_CTRL));
1650 #define PCT(_field) (common->cc_survey._field * 100 / common->cc_survey.cycles)
1651 if (common->cc_survey.cycles)
1652 ath_dbg(common, RESET,
1653 "** BB busy times: rx_clear=%d%%, rx_frame=%d%%, tx_frame=%d%% **\n",
1654 PCT(rx_busy), PCT(rx_frame), PCT(tx_frame));
1656 ath_dbg(common, RESET, "==== BB update: done ====\n\n");
1658 EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info);
1660 void ar9003_hw_disable_phy_restart(struct ath_hw *ah)
1664 /* While receiving unsupported rate frame rx state machine
1665 * gets into a state 0xb and if phy_restart happens in that
1666 * state, BB would go hang. If RXSM is in 0xb state after
1667 * first bb panic, ensure to disable the phy_restart.
1669 if (!((MS(ah->bb_watchdog_last_status,
1670 AR_PHY_WATCHDOG_RX_OFDM_SM) == 0xb) ||
1671 ah->bb_hang_rx_ofdm))
1674 ah->bb_hang_rx_ofdm = true;
1675 val = REG_READ(ah, AR_PHY_RESTART);
1676 val &= ~AR_PHY_RESTART_ENA;
1678 REG_WRITE(ah, AR_PHY_RESTART, val);
1680 EXPORT_SYMBOL(ar9003_hw_disable_phy_restart);