2 * Copyright (c) 2010 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.
18 #include "ar9003_phy.h"
20 static const int firstep_table[] =
21 /* level: 0 1 2 3 4 5 6 7 8 */
22 { -4, -2, 0, 2, 4, 6, 8, 10, 12 }; /* lvl 0-8, default 2 */
24 static const int cycpwrThr1_table[] =
25 /* level: 0 1 2 3 4 5 6 7 8 */
26 { -6, -4, -2, 0, 2, 4, 6, 8 }; /* lvl 0-7, default 3 */
29 * register values to turn OFDM weak signal detection OFF
31 static const int m1ThreshLow_off = 127;
32 static const int m2ThreshLow_off = 127;
33 static const int m1Thresh_off = 127;
34 static const int m2Thresh_off = 127;
35 static const int m2CountThr_off = 31;
36 static const int m2CountThrLow_off = 63;
37 static const int m1ThreshLowExt_off = 127;
38 static const int m2ThreshLowExt_off = 127;
39 static const int m1ThreshExt_off = 127;
40 static const int m2ThreshExt_off = 127;
43 * ar9003_hw_set_channel - set channel on single-chip device
44 * @ah: atheros hardware structure
47 * This is the function to change channel on single-chip devices, that is
48 * all devices after ar9280.
50 * This function takes the channel value in MHz and sets
51 * hardware channel value. Assumes writes have been enabled to analog bus.
56 * Channel Frequency = (3/4) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
60 * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^10)
61 * (freq_ref = 40MHz/(24>>amodeRefSel))
63 * For 5GHz channels which are 5MHz spaced,
64 * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
67 static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
69 u16 bMode, fracMode = 0, aModeRefSel = 0;
70 u32 freq, channelSel = 0, reg32 = 0;
71 struct chan_centers centers;
74 ath9k_hw_get_channel_centers(ah, chan, ¢ers);
75 freq = centers.synth_center;
77 if (freq < 4800) { /* 2 GHz, fractional mode */
78 channelSel = CHANSEL_2G(freq);
82 channelSel = CHANSEL_5G(freq);
83 /* Doubler is ON, so, divide channelSel by 2. */
89 /* Enable fractional mode for all channels */
94 reg32 = (bMode << 29);
95 REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32);
97 /* Enable Long shift Select for Synthesizer */
98 REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH4,
99 AR_PHY_SYNTH4_LONG_SHIFT_SELECT, 1);
101 /* Program Synth. setting */
102 reg32 = (channelSel << 2) | (fracMode << 30) |
103 (aModeRefSel << 28) | (loadSynthChannel << 31);
104 REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
106 /* Toggle Load Synth channel bit */
107 loadSynthChannel = 1;
108 reg32 = (channelSel << 2) | (fracMode << 30) |
109 (aModeRefSel << 28) | (loadSynthChannel << 31);
110 REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
113 ah->curchan_rad_index = -1;
119 * ar9003_hw_spur_mitigate_mrc_cck - convert baseband spur frequency
120 * @ah: atheros hardware structure
123 * For single-chip solutions. Converts to baseband spur frequency given the
124 * input channel frequency and compute register settings below.
126 * Spur mitigation for MRC CCK
128 static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
129 struct ath9k_channel *chan)
131 u32 spur_freq[4] = { 2420, 2440, 2464, 2480 };
132 int cur_bb_spur, negative = 0, cck_spur_freq;
136 * Need to verify range +/- 10 MHz in control channel, otherwise spur
137 * is out-of-band and can be ignored.
140 for (i = 0; i < 4; i++) {
142 cur_bb_spur = spur_freq[i] - chan->channel;
144 if (cur_bb_spur < 0) {
146 cur_bb_spur = -cur_bb_spur;
148 if (cur_bb_spur < 10) {
149 cck_spur_freq = (int)((cur_bb_spur << 19) / 11);
152 cck_spur_freq = -cck_spur_freq;
154 cck_spur_freq = cck_spur_freq & 0xfffff;
156 REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
157 AR_PHY_AGC_CONTROL_YCOK_MAX, 0x7);
158 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
159 AR_PHY_CCK_SPUR_MIT_SPUR_RSSI_THR, 0x7f);
160 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
161 AR_PHY_CCK_SPUR_MIT_SPUR_FILTER_TYPE,
163 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
164 AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT,
166 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
167 AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ,
174 REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
175 AR_PHY_AGC_CONTROL_YCOK_MAX, 0x5);
176 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
177 AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT, 0x0);
178 REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
179 AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ, 0x0);
182 /* Clean all spur register fields */
183 static void ar9003_hw_spur_ofdm_clear(struct ath_hw *ah)
185 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
186 AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0);
187 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
188 AR_PHY_TIMING11_SPUR_FREQ_SD, 0);
189 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
190 AR_PHY_TIMING11_SPUR_DELTA_PHASE, 0);
191 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
192 AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, 0);
193 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
194 AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0);
195 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
196 AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0);
197 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
198 AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0);
199 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
200 AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 0);
201 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
202 AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 0);
204 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
205 AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0);
206 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
207 AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0);
208 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
209 AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0);
210 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
211 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, 0);
212 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
213 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, 0);
214 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
215 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, 0);
216 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
217 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0);
218 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
219 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0);
220 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
221 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0);
222 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
223 AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0);
226 static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
229 int spur_delta_phase,
230 int spur_subchannel_sd)
234 /* OFDM Spur mitigation */
235 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
236 AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0x1);
237 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
238 AR_PHY_TIMING11_SPUR_FREQ_SD, spur_freq_sd);
239 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
240 AR_PHY_TIMING11_SPUR_DELTA_PHASE, spur_delta_phase);
241 REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
242 AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, spur_subchannel_sd);
243 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
244 AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0x1);
245 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
246 AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1);
247 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
248 AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0x1);
249 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
250 AR_PHY_SPUR_REG_SPUR_RSSI_THRESH, 34);
251 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
252 AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1);
254 if (REG_READ_FIELD(ah, AR_PHY_MODE,
255 AR_PHY_MODE_DYNAMIC) == 0x1)
256 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
257 AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1);
259 mask_index = (freq_offset << 4) / 5;
261 mask_index = mask_index - 1;
263 mask_index = mask_index & 0x7f;
265 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
266 AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0x1);
267 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
268 AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0x1);
269 REG_RMW_FIELD(ah, AR_PHY_TIMING4,
270 AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0x1);
271 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
272 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, mask_index);
273 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
274 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, mask_index);
275 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
276 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, mask_index);
277 REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
278 AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0xc);
279 REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
280 AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0xc);
281 REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
282 AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
283 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
284 AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0xff);
287 static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah,
288 struct ath9k_channel *chan,
291 int spur_freq_sd = 0;
292 int spur_subchannel_sd = 0;
293 int spur_delta_phase = 0;
295 if (IS_CHAN_HT40(chan)) {
296 if (freq_offset < 0) {
297 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
298 AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
299 spur_subchannel_sd = 1;
301 spur_subchannel_sd = 0;
303 spur_freq_sd = ((freq_offset + 10) << 9) / 11;
306 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
307 AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
308 spur_subchannel_sd = 0;
310 spur_subchannel_sd = 1;
312 spur_freq_sd = ((freq_offset - 10) << 9) / 11;
316 spur_delta_phase = (freq_offset << 17) / 5;
319 spur_subchannel_sd = 0;
320 spur_freq_sd = (freq_offset << 9) /11;
321 spur_delta_phase = (freq_offset << 18) / 5;
324 spur_freq_sd = spur_freq_sd & 0x3ff;
325 spur_delta_phase = spur_delta_phase & 0xfffff;
327 ar9003_hw_spur_ofdm(ah,
334 /* Spur mitigation for OFDM */
335 static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah,
336 struct ath9k_channel *chan)
344 struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
346 if (IS_CHAN_5GHZ(chan)) {
347 spurChansPtr = &(eep->modalHeader5G.spurChans[0]);
351 spurChansPtr = &(eep->modalHeader2G.spurChans[0]);
355 if (spurChansPtr[0] == 0)
356 return; /* No spur in the mode */
358 if (IS_CHAN_HT40(chan)) {
360 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
361 AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
362 synth_freq = chan->channel - 10;
364 synth_freq = chan->channel + 10;
367 synth_freq = chan->channel;
370 ar9003_hw_spur_ofdm_clear(ah);
372 for (i = 0; spurChansPtr[i] && i < 5; i++) {
373 freq_offset = FBIN2FREQ(spurChansPtr[i], mode) - synth_freq;
374 if (abs(freq_offset) < range) {
375 ar9003_hw_spur_ofdm_work(ah, chan, freq_offset);
381 static void ar9003_hw_spur_mitigate(struct ath_hw *ah,
382 struct ath9k_channel *chan)
384 ar9003_hw_spur_mitigate_mrc_cck(ah, chan);
385 ar9003_hw_spur_mitigate_ofdm(ah, chan);
388 static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
389 struct ath9k_channel *chan)
393 pll = SM(0x5, AR_RTC_9300_PLL_REFDIV);
395 if (chan && IS_CHAN_HALF_RATE(chan))
396 pll |= SM(0x1, AR_RTC_9300_PLL_CLKSEL);
397 else if (chan && IS_CHAN_QUARTER_RATE(chan))
398 pll |= SM(0x2, AR_RTC_9300_PLL_CLKSEL);
400 pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);
405 static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
406 struct ath9k_channel *chan)
409 u32 enableDacFifo = 0;
412 (REG_READ(ah, AR_PHY_GEN_CTRL) & AR_PHY_GC_ENABLE_DAC_FIFO);
414 /* Enable 11n HT, 20 MHz */
415 phymode = AR_PHY_GC_HT_EN | AR_PHY_GC_SINGLE_HT_LTF1 | AR_PHY_GC_WALSH |
416 AR_PHY_GC_SHORT_GI_40 | enableDacFifo;
418 /* Configure baseband for dynamic 20/40 operation */
419 if (IS_CHAN_HT40(chan)) {
420 phymode |= AR_PHY_GC_DYN2040_EN;
421 /* Configure control (primary) channel at +-10MHz */
422 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
423 (chan->chanmode == CHANNEL_G_HT40PLUS))
424 phymode |= AR_PHY_GC_DYN2040_PRI_CH;
428 /* make sure we preserve INI settings */
429 phymode |= REG_READ(ah, AR_PHY_GEN_CTRL);
430 /* turn off Green Field detection for STA for now */
431 phymode &= ~AR_PHY_GC_GF_DETECT_EN;
433 REG_WRITE(ah, AR_PHY_GEN_CTRL, phymode);
435 /* Configure MAC for 20/40 operation */
436 ath9k_hw_set11nmac2040(ah);
438 /* global transmit timeout (25 TUs default)*/
439 REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
440 /* carrier sense timeout */
441 REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
444 static void ar9003_hw_init_bb(struct ath_hw *ah,
445 struct ath9k_channel *chan)
450 * Wait for the frequency synth to settle (synth goes on
451 * via AR_PHY_ACTIVE_EN). Read the phy active delay register.
452 * Value is in 100ns increments.
454 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
456 synthDelay = (4 * synthDelay) / 22;
460 /* Activate the PHY (includes baseband activate + synthesizer on) */
461 REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
464 * There is an issue if the AP starts the calibration before
465 * the base band timeout completes. This could result in the
466 * rx_clear false triggering. As a workaround we add delay an
467 * extra BASE_ACTIVATE_DELAY usecs to ensure this condition
470 udelay(synthDelay + BASE_ACTIVATE_DELAY);
473 void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
477 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
478 AR_PHY_SWAP_ALT_CHAIN);
483 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx);
484 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx);
490 REG_WRITE(ah, AR_SELFGEN_MASK, tx);
492 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
493 AR_PHY_SWAP_ALT_CHAIN);
498 * Override INI values with chip specific configuration.
500 static void ar9003_hw_override_ini(struct ath_hw *ah)
505 * Set the RX_ABORT and RX_DIS and clear it only after
506 * RXE is set for MAC. This prevents frames with
507 * corrupted descriptor status.
509 REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
512 * For AR9280 and above, there is a new feature that allows
513 * Multicast search based on both MAC Address and Key ID. By default,
514 * this feature is enabled. But since the driver is not using this
515 * feature, we switch it off; otherwise multicast search based on
516 * MAC addr only will fail.
518 val = REG_READ(ah, AR_PCU_MISC_MODE2) & (~AR_ADHOC_MCAST_KEYID_ENABLE);
519 REG_WRITE(ah, AR_PCU_MISC_MODE2,
520 val | AR_AGG_WEP_ENABLE_FIX | AR_AGG_WEP_ENABLE);
523 static void ar9003_hw_prog_ini(struct ath_hw *ah,
524 struct ar5416IniArray *iniArr,
527 unsigned int i, regWrites = 0;
529 /* New INI format: Array may be undefined (pre, core, post arrays) */
530 if (!iniArr->ia_array)
534 * New INI format: Pre, core, and post arrays for a given subsystem
535 * may be modal (> 2 columns) or non-modal (2 columns). Determine if
536 * the array is non-modal and force the column to 1.
538 if (column >= iniArr->ia_columns)
541 for (i = 0; i < iniArr->ia_rows; i++) {
542 u32 reg = INI_RA(iniArr, i, 0);
543 u32 val = INI_RA(iniArr, i, column);
545 if (reg >= 0x16000 && reg < 0x17000)
546 ath9k_hw_analog_shift_regwrite(ah, reg, val);
548 REG_WRITE(ah, reg, val);
554 static int ar9003_hw_process_ini(struct ath_hw *ah,
555 struct ath9k_channel *chan)
557 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
558 unsigned int regWrites = 0, i;
559 struct ieee80211_channel *channel = chan->chan;
560 u32 modesIndex, freqIndex;
562 switch (chan->chanmode) {
568 case CHANNEL_A_HT40PLUS:
569 case CHANNEL_A_HT40MINUS:
579 case CHANNEL_G_HT40PLUS:
580 case CHANNEL_G_HT40MINUS:
589 for (i = 0; i < ATH_INI_NUM_SPLIT; i++) {
590 ar9003_hw_prog_ini(ah, &ah->iniSOC[i], modesIndex);
591 ar9003_hw_prog_ini(ah, &ah->iniMac[i], modesIndex);
592 ar9003_hw_prog_ini(ah, &ah->iniBB[i], modesIndex);
593 ar9003_hw_prog_ini(ah, &ah->iniRadio[i], modesIndex);
596 REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites);
597 REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
600 * For 5GHz channels requiring Fast Clock, apply
601 * different modal values.
603 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
604 REG_WRITE_ARRAY(&ah->iniModesAdditional,
605 modesIndex, regWrites);
607 ar9003_hw_override_ini(ah);
608 ar9003_hw_set_channel_regs(ah, chan);
609 ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
612 ah->eep_ops->set_txpower(ah, chan,
613 ath9k_regd_get_ctl(regulatory, chan),
614 channel->max_antenna_gain * 2,
615 channel->max_power * 2,
616 min((u32) MAX_RATE_POWER,
617 (u32) regulatory->power_limit));
622 static void ar9003_hw_set_rfmode(struct ath_hw *ah,
623 struct ath9k_channel *chan)
630 rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
631 ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
633 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
634 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
636 REG_WRITE(ah, AR_PHY_MODE, rfMode);
639 static void ar9003_hw_mark_phy_inactive(struct ath_hw *ah)
641 REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
644 static void ar9003_hw_set_delta_slope(struct ath_hw *ah,
645 struct ath9k_channel *chan)
647 u32 coef_scaled, ds_coef_exp, ds_coef_man;
648 u32 clockMhzScaled = 0x64000000;
649 struct chan_centers centers;
652 * half and quarter rate can divide the scaled clock by 2 or 4
653 * scale for selected channel bandwidth
655 if (IS_CHAN_HALF_RATE(chan))
656 clockMhzScaled = clockMhzScaled >> 1;
657 else if (IS_CHAN_QUARTER_RATE(chan))
658 clockMhzScaled = clockMhzScaled >> 2;
661 * ALGO -> coef = 1e8/fcarrier*fclock/40;
662 * scaled coef to provide precision for this floating calculation
664 ath9k_hw_get_channel_centers(ah, chan, ¢ers);
665 coef_scaled = clockMhzScaled / centers.synth_center;
667 ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
670 REG_RMW_FIELD(ah, AR_PHY_TIMING3,
671 AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
672 REG_RMW_FIELD(ah, AR_PHY_TIMING3,
673 AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
677 * scaled coeff is 9/10 that of normal coeff
679 coef_scaled = (9 * coef_scaled) / 10;
681 ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
685 REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
686 AR_PHY_SGI_DSC_MAN, ds_coef_man);
687 REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
688 AR_PHY_SGI_DSC_EXP, ds_coef_exp);
691 static bool ar9003_hw_rfbus_req(struct ath_hw *ah)
693 REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
694 return ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
695 AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT);
699 * Wait for the frequency synth to settle (synth goes on via PHY_ACTIVE_EN).
700 * Read the phy active delay register. Value is in 100ns increments.
702 static void ar9003_hw_rfbus_done(struct ath_hw *ah)
704 u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
705 if (IS_CHAN_B(ah->curchan))
706 synthDelay = (4 * synthDelay) / 22;
710 udelay(synthDelay + BASE_ACTIVATE_DELAY);
712 REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
716 * Set the interrupt and GPIO values so the ISR can disable RF
717 * on a switch signal. Assumes GPIO port and interrupt polarity
718 * are set prior to call.
720 static void ar9003_hw_enable_rfkill(struct ath_hw *ah)
722 /* Connect rfsilent_bb_l to baseband */
723 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
724 AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
725 /* Set input mux for rfsilent_bb_l to GPIO #0 */
726 REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
727 AR_GPIO_INPUT_MUX2_RFSILENT);
730 * Configure the desired GPIO port for input and
731 * enable baseband rf silence.
733 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
734 REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
737 static void ar9003_hw_set_diversity(struct ath_hw *ah, bool value)
739 u32 v = REG_READ(ah, AR_PHY_CCK_DETECT);
741 v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
743 v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
744 REG_WRITE(ah, AR_PHY_CCK_DETECT, v);
747 static bool ar9003_hw_ani_control(struct ath_hw *ah,
748 enum ath9k_ani_cmd cmd, int param)
750 struct ar5416AniState *aniState = ah->curani;
751 struct ath_common *common = ath9k_hw_common(ah);
752 struct ath9k_channel *chan = ah->curchan;
755 switch (cmd & ah->ani_function) {
756 case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{
758 * on == 1 means ofdm weak signal detection is ON
759 * on == 1 is the default, for less noise immunity
761 * on == 0 means ofdm weak signal detection is OFF
762 * on == 0 means more noise imm
764 u32 on = param ? 1 : 0;
766 * make register setting for default
767 * (weak sig detect ON) come from INI file
769 int m1ThreshLow = on ?
770 aniState->iniDef.m1ThreshLow : m1ThreshLow_off;
771 int m2ThreshLow = on ?
772 aniState->iniDef.m2ThreshLow : m2ThreshLow_off;
774 aniState->iniDef.m1Thresh : m1Thresh_off;
776 aniState->iniDef.m2Thresh : m2Thresh_off;
777 int m2CountThr = on ?
778 aniState->iniDef.m2CountThr : m2CountThr_off;
779 int m2CountThrLow = on ?
780 aniState->iniDef.m2CountThrLow : m2CountThrLow_off;
781 int m1ThreshLowExt = on ?
782 aniState->iniDef.m1ThreshLowExt : m1ThreshLowExt_off;
783 int m2ThreshLowExt = on ?
784 aniState->iniDef.m2ThreshLowExt : m2ThreshLowExt_off;
785 int m1ThreshExt = on ?
786 aniState->iniDef.m1ThreshExt : m1ThreshExt_off;
787 int m2ThreshExt = on ?
788 aniState->iniDef.m2ThreshExt : m2ThreshExt_off;
790 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
791 AR_PHY_SFCORR_LOW_M1_THRESH_LOW,
793 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
794 AR_PHY_SFCORR_LOW_M2_THRESH_LOW,
796 REG_RMW_FIELD(ah, AR_PHY_SFCORR,
797 AR_PHY_SFCORR_M1_THRESH, m1Thresh);
798 REG_RMW_FIELD(ah, AR_PHY_SFCORR,
799 AR_PHY_SFCORR_M2_THRESH, m2Thresh);
800 REG_RMW_FIELD(ah, AR_PHY_SFCORR,
801 AR_PHY_SFCORR_M2COUNT_THR, m2CountThr);
802 REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
803 AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW,
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);
816 REG_SET_BIT(ah, AR_PHY_SFCORR_LOW,
817 AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
819 REG_CLR_BIT(ah, AR_PHY_SFCORR_LOW,
820 AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
822 if (!on != aniState->ofdmWeakSigDetectOff) {
823 ath_print(common, ATH_DBG_ANI,
824 "** ch %d: ofdm weak signal: %s=>%s\n",
826 !aniState->ofdmWeakSigDetectOff ?
830 ah->stats.ast_ani_ofdmon++;
832 ah->stats.ast_ani_ofdmoff++;
833 aniState->ofdmWeakSigDetectOff = !on;
837 case ATH9K_ANI_FIRSTEP_LEVEL:{
840 if (level >= ARRAY_SIZE(firstep_table)) {
841 ath_print(common, ATH_DBG_ANI,
842 "ATH9K_ANI_FIRSTEP_LEVEL: level "
843 "out of range (%u > %u)\n",
845 (unsigned) ARRAY_SIZE(firstep_table));
850 * make register setting relative to default
851 * from INI file & cap value
853 value = firstep_table[level] -
854 firstep_table[ATH9K_ANI_FIRSTEP_LVL_NEW] +
855 aniState->iniDef.firstep;
856 if (value < ATH9K_SIG_FIRSTEP_SETTING_MIN)
857 value = ATH9K_SIG_FIRSTEP_SETTING_MIN;
858 if (value > ATH9K_SIG_FIRSTEP_SETTING_MAX)
859 value = ATH9K_SIG_FIRSTEP_SETTING_MAX;
860 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
861 AR_PHY_FIND_SIG_FIRSTEP,
864 * we need to set first step low register too
865 * make register setting relative to default
866 * from INI file & cap value
868 value2 = firstep_table[level] -
869 firstep_table[ATH9K_ANI_FIRSTEP_LVL_NEW] +
870 aniState->iniDef.firstepLow;
871 if (value2 < ATH9K_SIG_FIRSTEP_SETTING_MIN)
872 value2 = ATH9K_SIG_FIRSTEP_SETTING_MIN;
873 if (value2 > ATH9K_SIG_FIRSTEP_SETTING_MAX)
874 value2 = ATH9K_SIG_FIRSTEP_SETTING_MAX;
876 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW,
877 AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW, value2);
879 if (level != aniState->firstepLevel) {
880 ath_print(common, ATH_DBG_ANI,
881 "** ch %d: level %d=>%d[def:%d] "
882 "firstep[level]=%d ini=%d\n",
884 aniState->firstepLevel,
886 ATH9K_ANI_FIRSTEP_LVL_NEW,
888 aniState->iniDef.firstep);
889 ath_print(common, ATH_DBG_ANI,
890 "** ch %d: level %d=>%d[def:%d] "
891 "firstep_low[level]=%d ini=%d\n",
893 aniState->firstepLevel,
895 ATH9K_ANI_FIRSTEP_LVL_NEW,
897 aniState->iniDef.firstepLow);
898 if (level > aniState->firstepLevel)
899 ah->stats.ast_ani_stepup++;
900 else if (level < aniState->firstepLevel)
901 ah->stats.ast_ani_stepdown++;
902 aniState->firstepLevel = level;
906 case ATH9K_ANI_SPUR_IMMUNITY_LEVEL:{
909 if (level >= ARRAY_SIZE(cycpwrThr1_table)) {
910 ath_print(common, ATH_DBG_ANI,
911 "ATH9K_ANI_SPUR_IMMUNITY_LEVEL: level "
912 "out of range (%u > %u)\n",
914 (unsigned) ARRAY_SIZE(cycpwrThr1_table));
918 * make register setting relative to default
919 * from INI file & cap value
921 value = cycpwrThr1_table[level] -
922 cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL_NEW] +
923 aniState->iniDef.cycpwrThr1;
924 if (value < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
925 value = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
926 if (value > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
927 value = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
928 REG_RMW_FIELD(ah, AR_PHY_TIMING5,
929 AR_PHY_TIMING5_CYCPWR_THR1,
933 * set AR_PHY_EXT_CCA for extension channel
934 * make register setting relative to default
935 * from INI file & cap value
937 value2 = cycpwrThr1_table[level] -
938 cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL_NEW] +
939 aniState->iniDef.cycpwrThr1Ext;
940 if (value2 < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
941 value2 = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
942 if (value2 > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
943 value2 = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
944 REG_RMW_FIELD(ah, AR_PHY_EXT_CCA,
945 AR_PHY_EXT_CYCPWR_THR1, value2);
947 if (level != aniState->spurImmunityLevel) {
948 ath_print(common, ATH_DBG_ANI,
949 "** ch %d: level %d=>%d[def:%d] "
950 "cycpwrThr1[level]=%d ini=%d\n",
952 aniState->spurImmunityLevel,
954 ATH9K_ANI_SPUR_IMMUNE_LVL_NEW,
956 aniState->iniDef.cycpwrThr1);
957 ath_print(common, ATH_DBG_ANI,
958 "** ch %d: level %d=>%d[def:%d] "
959 "cycpwrThr1Ext[level]=%d ini=%d\n",
961 aniState->spurImmunityLevel,
963 ATH9K_ANI_SPUR_IMMUNE_LVL_NEW,
965 aniState->iniDef.cycpwrThr1Ext);
966 if (level > aniState->spurImmunityLevel)
967 ah->stats.ast_ani_spurup++;
968 else if (level < aniState->spurImmunityLevel)
969 ah->stats.ast_ani_spurdown++;
970 aniState->spurImmunityLevel = level;
974 case ATH9K_ANI_MRC_CCK:{
976 * is_on == 1 means MRC CCK ON (default, less noise imm)
977 * is_on == 0 means MRC CCK is OFF (more noise imm)
979 bool is_on = param ? 1 : 0;
980 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
981 AR_PHY_MRC_CCK_ENABLE, is_on);
982 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
983 AR_PHY_MRC_CCK_MUX_REG, is_on);
984 if (!is_on != aniState->mrcCCKOff) {
985 ath_print(common, ATH_DBG_ANI,
986 "** ch %d: MRC CCK: %s=>%s\n",
988 !aniState->mrcCCKOff ? "on" : "off",
989 is_on ? "on" : "off");
991 ah->stats.ast_ani_ccklow++;
993 ah->stats.ast_ani_cckhigh++;
994 aniState->mrcCCKOff = !is_on;
998 case ATH9K_ANI_PRESENT:
1001 ath_print(common, ATH_DBG_ANI,
1002 "invalid cmd %u\n", cmd);
1006 ath_print(common, ATH_DBG_ANI,
1007 "ANI parameters: SI=%d, ofdmWS=%s FS=%d "
1008 "MRCcck=%s listenTime=%d CC=%d listen=%d "
1009 "ofdmErrs=%d cckErrs=%d\n",
1010 aniState->spurImmunityLevel,
1011 !aniState->ofdmWeakSigDetectOff ? "on" : "off",
1012 aniState->firstepLevel,
1013 !aniState->mrcCCKOff ? "on" : "off",
1014 aniState->listenTime,
1015 aniState->cycleCount,
1016 aniState->listenTime,
1017 aniState->ofdmPhyErrCount,
1018 aniState->cckPhyErrCount);
1022 static void ar9003_hw_do_getnf(struct ath_hw *ah,
1023 int16_t nfarray[NUM_NF_READINGS])
1027 nf = MS(REG_READ(ah, AR_PHY_CCA_0), AR_PHY_MINCCA_PWR);
1028 nfarray[0] = sign_extend(nf, 9);
1030 nf = MS(REG_READ(ah, AR_PHY_CCA_1), AR_PHY_CH1_MINCCA_PWR);
1031 nfarray[1] = sign_extend(nf, 9);
1033 nf = MS(REG_READ(ah, AR_PHY_CCA_2), AR_PHY_CH2_MINCCA_PWR);
1034 nfarray[2] = sign_extend(nf, 9);
1036 if (!IS_CHAN_HT40(ah->curchan))
1039 nf = MS(REG_READ(ah, AR_PHY_EXT_CCA), AR_PHY_EXT_MINCCA_PWR);
1040 nfarray[3] = sign_extend(nf, 9);
1042 nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_1), AR_PHY_CH1_EXT_MINCCA_PWR);
1043 nfarray[4] = sign_extend(nf, 9);
1045 nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_2), AR_PHY_CH2_EXT_MINCCA_PWR);
1046 nfarray[5] = sign_extend(nf, 9);
1049 static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
1051 ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
1052 ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
1053 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
1054 ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
1055 ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
1056 ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9300_5GHZ;
1060 * Initialize the ANI register values with default (ini) values.
1061 * This routine is called during a (full) hardware reset after
1062 * all the registers are initialised from the INI.
1064 static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah)
1066 struct ar5416AniState *aniState;
1067 struct ath_common *common = ath9k_hw_common(ah);
1068 struct ath9k_channel *chan = ah->curchan;
1069 struct ath9k_ani_default *iniDef;
1073 index = ath9k_hw_get_ani_channel_idx(ah, chan);
1074 aniState = &ah->ani[index];
1075 ah->curani = aniState;
1076 iniDef = &aniState->iniDef;
1078 ath_print(common, ATH_DBG_ANI,
1079 "ver %d.%d opmode %u chan %d Mhz/0x%x\n",
1080 ah->hw_version.macVersion,
1081 ah->hw_version.macRev,
1084 chan->channelFlags);
1086 val = REG_READ(ah, AR_PHY_SFCORR);
1087 iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH);
1088 iniDef->m2Thresh = MS(val, AR_PHY_SFCORR_M2_THRESH);
1089 iniDef->m2CountThr = MS(val, AR_PHY_SFCORR_M2COUNT_THR);
1091 val = REG_READ(ah, AR_PHY_SFCORR_LOW);
1092 iniDef->m1ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M1_THRESH_LOW);
1093 iniDef->m2ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M2_THRESH_LOW);
1094 iniDef->m2CountThrLow = MS(val, AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW);
1096 val = REG_READ(ah, AR_PHY_SFCORR_EXT);
1097 iniDef->m1ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH);
1098 iniDef->m2ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH);
1099 iniDef->m1ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH_LOW);
1100 iniDef->m2ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH_LOW);
1101 iniDef->firstep = REG_READ_FIELD(ah,
1103 AR_PHY_FIND_SIG_FIRSTEP);
1104 iniDef->firstepLow = REG_READ_FIELD(ah,
1105 AR_PHY_FIND_SIG_LOW,
1106 AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW);
1107 iniDef->cycpwrThr1 = REG_READ_FIELD(ah,
1109 AR_PHY_TIMING5_CYCPWR_THR1);
1110 iniDef->cycpwrThr1Ext = REG_READ_FIELD(ah,
1112 AR_PHY_EXT_CYCPWR_THR1);
1114 /* these levels just got reset to defaults by the INI */
1115 aniState->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL_NEW;
1116 aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL_NEW;
1117 aniState->ofdmWeakSigDetectOff = !ATH9K_ANI_USE_OFDM_WEAK_SIG;
1118 aniState->mrcCCKOff = !ATH9K_ANI_ENABLE_MRC_CCK;
1120 aniState->cycleCount = 0;
1123 void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
1125 struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
1126 const u32 ar9300_cca_regs[6] = {
1135 priv_ops->rf_set_freq = ar9003_hw_set_channel;
1136 priv_ops->spur_mitigate_freq = ar9003_hw_spur_mitigate;
1137 priv_ops->compute_pll_control = ar9003_hw_compute_pll_control;
1138 priv_ops->set_channel_regs = ar9003_hw_set_channel_regs;
1139 priv_ops->init_bb = ar9003_hw_init_bb;
1140 priv_ops->process_ini = ar9003_hw_process_ini;
1141 priv_ops->set_rfmode = ar9003_hw_set_rfmode;
1142 priv_ops->mark_phy_inactive = ar9003_hw_mark_phy_inactive;
1143 priv_ops->set_delta_slope = ar9003_hw_set_delta_slope;
1144 priv_ops->rfbus_req = ar9003_hw_rfbus_req;
1145 priv_ops->rfbus_done = ar9003_hw_rfbus_done;
1146 priv_ops->enable_rfkill = ar9003_hw_enable_rfkill;
1147 priv_ops->set_diversity = ar9003_hw_set_diversity;
1148 priv_ops->ani_control = ar9003_hw_ani_control;
1149 priv_ops->do_getnf = ar9003_hw_do_getnf;
1150 priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs;
1152 ar9003_hw_set_nf_limits(ah);
1153 memcpy(ah->nf_regs, ar9300_cca_regs, sizeof(ah->nf_regs));
1156 void ar9003_hw_bb_watchdog_config(struct ath_hw *ah)
1158 struct ath_common *common = ath9k_hw_common(ah);
1159 u32 idle_tmo_ms = ah->bb_watchdog_timeout_ms;
1160 u32 val, idle_count;
1163 /* disable IRQ, disable chip-reset for BB panic */
1164 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
1165 REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) &
1166 ~(AR_PHY_WATCHDOG_RST_ENABLE |
1167 AR_PHY_WATCHDOG_IRQ_ENABLE));
1169 /* disable watchdog in non-IDLE mode, disable in IDLE mode */
1170 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
1171 REG_READ(ah, AR_PHY_WATCHDOG_CTL_1) &
1172 ~(AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
1173 AR_PHY_WATCHDOG_IDLE_ENABLE));
1175 ath_print(common, ATH_DBG_RESET, "Disabled BB Watchdog\n");
1179 /* enable IRQ, disable chip-reset for BB watchdog */
1180 val = REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) & AR_PHY_WATCHDOG_CNTL2_MASK;
1181 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
1182 (val | AR_PHY_WATCHDOG_IRQ_ENABLE) &
1183 ~AR_PHY_WATCHDOG_RST_ENABLE);
1185 /* bound limit to 10 secs */
1186 if (idle_tmo_ms > 10000)
1187 idle_tmo_ms = 10000;
1190 * The time unit for watchdog event is 2^15 44/88MHz cycles.
1192 * For HT20 we have a time unit of 2^15/44 MHz = .74 ms per tick
1193 * For HT40 we have a time unit of 2^15/88 MHz = .37 ms per tick
1195 * Given we use fast clock now in 5 GHz, these time units should
1196 * be common for both 2 GHz and 5 GHz.
1198 idle_count = (100 * idle_tmo_ms) / 74;
1199 if (ah->curchan && IS_CHAN_HT40(ah->curchan))
1200 idle_count = (100 * idle_tmo_ms) / 37;
1203 * enable watchdog in non-IDLE mode, disable in IDLE mode,
1204 * set idle time-out.
1206 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
1207 AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
1208 AR_PHY_WATCHDOG_IDLE_MASK |
1209 (AR_PHY_WATCHDOG_NON_IDLE_MASK & (idle_count << 2)));
1211 ath_print(common, ATH_DBG_RESET,
1212 "Enabled BB Watchdog timeout (%u ms)\n",
1216 void ar9003_hw_bb_watchdog_read(struct ath_hw *ah)
1219 * we want to avoid printing in ISR context so we save the
1220 * watchdog status to be printed later in bottom half context.
1222 ah->bb_watchdog_last_status = REG_READ(ah, AR_PHY_WATCHDOG_STATUS);
1225 * the watchdog timer should reset on status read but to be sure
1226 * sure we write 0 to the watchdog status bit.
1228 REG_WRITE(ah, AR_PHY_WATCHDOG_STATUS,
1229 ah->bb_watchdog_last_status & ~AR_PHY_WATCHDOG_STATUS_CLR);
1232 void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah)
1234 struct ath_common *common = ath9k_hw_common(ah);
1235 u32 rxc_pcnt = 0, rxf_pcnt = 0, txf_pcnt = 0, status;
1237 if (likely(!(common->debug_mask & ATH_DBG_RESET)))
1240 status = ah->bb_watchdog_last_status;
1241 ath_print(common, ATH_DBG_RESET,
1242 "\n==== BB update: BB status=0x%08x ====\n", status);
1243 ath_print(common, ATH_DBG_RESET,
1244 "** BB state: wd=%u det=%u rdar=%u rOFDM=%d "
1245 "rCCK=%u tOFDM=%u tCCK=%u agc=%u src=%u **\n",
1246 MS(status, AR_PHY_WATCHDOG_INFO),
1247 MS(status, AR_PHY_WATCHDOG_DET_HANG),
1248 MS(status, AR_PHY_WATCHDOG_RADAR_SM),
1249 MS(status, AR_PHY_WATCHDOG_RX_OFDM_SM),
1250 MS(status, AR_PHY_WATCHDOG_RX_CCK_SM),
1251 MS(status, AR_PHY_WATCHDOG_TX_OFDM_SM),
1252 MS(status, AR_PHY_WATCHDOG_TX_CCK_SM),
1253 MS(status, AR_PHY_WATCHDOG_AGC_SM),
1254 MS(status,AR_PHY_WATCHDOG_SRCH_SM));
1256 ath_print(common, ATH_DBG_RESET,
1257 "** BB WD cntl: cntl1=0x%08x cntl2=0x%08x **\n",
1258 REG_READ(ah, AR_PHY_WATCHDOG_CTL_1),
1259 REG_READ(ah, AR_PHY_WATCHDOG_CTL_2));
1260 ath_print(common, ATH_DBG_RESET,
1261 "** BB mode: BB_gen_controls=0x%08x **\n",
1262 REG_READ(ah, AR_PHY_GEN_CTRL));
1264 if (ath9k_hw_GetMibCycleCountsPct(ah, &rxc_pcnt, &rxf_pcnt, &txf_pcnt))
1265 ath_print(common, ATH_DBG_RESET,
1266 "** BB busy times: rx_clear=%d%%, "
1267 "rx_frame=%d%%, tx_frame=%d%% **\n",
1268 rxc_pcnt, rxf_pcnt, txf_pcnt);
1270 ath_print(common, ATH_DBG_RESET,
1271 "==== BB update: done ====\n\n");
1273 EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info);