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1/*
2 * Copyright (c) 2008-2011 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include "hw.h"
18#include "hw-ops.h"
19#include "ar9002_phy.h"
20
21#define AR9285_CLCAL_REDO_THRESH 1
22
23enum ar9002_cal_types {
24 ADC_GAIN_CAL = BIT(0),
25 ADC_DC_CAL = BIT(1),
26 IQ_MISMATCH_CAL = BIT(2),
27};
28
29static bool ar9002_hw_is_cal_supported(struct ath_hw *ah,
30 struct ath9k_channel *chan,
31 enum ar9002_cal_types cal_type)
32{
33 bool supported = false;
34 switch (ah->supp_cals & cal_type) {
35 case IQ_MISMATCH_CAL:
36 /* Run IQ Mismatch for non-CCK only */
37 if (!IS_CHAN_B(chan))
38 supported = true;
39 break;
40 case ADC_GAIN_CAL:
41 case ADC_DC_CAL:
42 /* Run ADC Gain Cal for non-CCK & non 2GHz-HT20 only */
43 if (!IS_CHAN_B(chan) &&
44 !((IS_CHAN_2GHZ(chan) || IS_CHAN_A_FAST_CLOCK(ah, chan)) &&
45 IS_CHAN_HT20(chan)))
46 supported = true;
47 break;
48 }
49 return supported;
50}
51
52static void ar9002_hw_setup_calibration(struct ath_hw *ah,
53 struct ath9k_cal_list *currCal)
54{
55 struct ath_common *common = ath9k_hw_common(ah);
56
57 REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4(0),
58 AR_PHY_TIMING_CTRL4_IQCAL_LOG_COUNT_MAX,
59 currCal->calData->calCountMax);
60
61 switch (currCal->calData->calType) {
62 case IQ_MISMATCH_CAL:
63 REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_IQ);
64 ath_dbg(common, ATH_DBG_CALIBRATE,
65 "starting IQ Mismatch Calibration\n");
66 break;
67 case ADC_GAIN_CAL:
68 REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_ADC_GAIN);
69 ath_dbg(common, ATH_DBG_CALIBRATE,
70 "starting ADC Gain Calibration\n");
71 break;
72 case ADC_DC_CAL:
73 REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_ADC_DC_PER);
74 ath_dbg(common, ATH_DBG_CALIBRATE,
75 "starting ADC DC Calibration\n");
76 break;
77 }
78
79 REG_SET_BIT(ah, AR_PHY_TIMING_CTRL4(0),
80 AR_PHY_TIMING_CTRL4_DO_CAL);
81}
82
83static bool ar9002_hw_per_calibration(struct ath_hw *ah,
84 struct ath9k_channel *ichan,
85 u8 rxchainmask,
86 struct ath9k_cal_list *currCal)
87{
88 struct ath9k_hw_cal_data *caldata = ah->caldata;
89 bool iscaldone = false;
90
91 if (currCal->calState == CAL_RUNNING) {
92 if (!(REG_READ(ah, AR_PHY_TIMING_CTRL4(0)) &
93 AR_PHY_TIMING_CTRL4_DO_CAL)) {
94
95 currCal->calData->calCollect(ah);
96 ah->cal_samples++;
97
98 if (ah->cal_samples >=
99 currCal->calData->calNumSamples) {
100 int i, numChains = 0;
101 for (i = 0; i < AR5416_MAX_CHAINS; i++) {
102 if (rxchainmask & (1 << i))
103 numChains++;
104 }
105
106 currCal->calData->calPostProc(ah, numChains);
107 caldata->CalValid |= currCal->calData->calType;
108 currCal->calState = CAL_DONE;
109 iscaldone = true;
110 } else {
111 ar9002_hw_setup_calibration(ah, currCal);
112 }
113 }
114 } else if (!(caldata->CalValid & currCal->calData->calType)) {
115 ath9k_hw_reset_calibration(ah, currCal);
116 }
117
118 return iscaldone;
119}
120
121static void ar9002_hw_iqcal_collect(struct ath_hw *ah)
122{
123 int i;
124
125 for (i = 0; i < AR5416_MAX_CHAINS; i++) {
126 ah->totalPowerMeasI[i] +=
127 REG_READ(ah, AR_PHY_CAL_MEAS_0(i));
128 ah->totalPowerMeasQ[i] +=
129 REG_READ(ah, AR_PHY_CAL_MEAS_1(i));
130 ah->totalIqCorrMeas[i] +=
131 (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_2(i));
132 ath_dbg(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
133 "%d: Chn %d pmi=0x%08x;pmq=0x%08x;iqcm=0x%08x;\n",
134 ah->cal_samples, i, ah->totalPowerMeasI[i],
135 ah->totalPowerMeasQ[i],
136 ah->totalIqCorrMeas[i]);
137 }
138}
139
140static void ar9002_hw_adc_gaincal_collect(struct ath_hw *ah)
141{
142 int i;
143
144 for (i = 0; i < AR5416_MAX_CHAINS; i++) {
145 ah->totalAdcIOddPhase[i] +=
146 REG_READ(ah, AR_PHY_CAL_MEAS_0(i));
147 ah->totalAdcIEvenPhase[i] +=
148 REG_READ(ah, AR_PHY_CAL_MEAS_1(i));
149 ah->totalAdcQOddPhase[i] +=
150 REG_READ(ah, AR_PHY_CAL_MEAS_2(i));
151 ah->totalAdcQEvenPhase[i] +=
152 REG_READ(ah, AR_PHY_CAL_MEAS_3(i));
153
154 ath_dbg(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
155 "%d: Chn %d oddi=0x%08x; eveni=0x%08x; oddq=0x%08x; evenq=0x%08x;\n",
156 ah->cal_samples, i,
157 ah->totalAdcIOddPhase[i],
158 ah->totalAdcIEvenPhase[i],
159 ah->totalAdcQOddPhase[i],
160 ah->totalAdcQEvenPhase[i]);
161 }
162}
163
164static void ar9002_hw_adc_dccal_collect(struct ath_hw *ah)
165{
166 int i;
167
168 for (i = 0; i < AR5416_MAX_CHAINS; i++) {
169 ah->totalAdcDcOffsetIOddPhase[i] +=
170 (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_0(i));
171 ah->totalAdcDcOffsetIEvenPhase[i] +=
172 (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_1(i));
173 ah->totalAdcDcOffsetQOddPhase[i] +=
174 (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_2(i));
175 ah->totalAdcDcOffsetQEvenPhase[i] +=
176 (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_3(i));
177
178 ath_dbg(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
179 "%d: Chn %d oddi=0x%08x; eveni=0x%08x; oddq=0x%08x; evenq=0x%08x;\n",
180 ah->cal_samples, i,
181 ah->totalAdcDcOffsetIOddPhase[i],
182 ah->totalAdcDcOffsetIEvenPhase[i],
183 ah->totalAdcDcOffsetQOddPhase[i],
184 ah->totalAdcDcOffsetQEvenPhase[i]);
185 }
186}
187
188static void ar9002_hw_iqcalibrate(struct ath_hw *ah, u8 numChains)
189{
190 struct ath_common *common = ath9k_hw_common(ah);
191 u32 powerMeasQ, powerMeasI, iqCorrMeas;
192 u32 qCoffDenom, iCoffDenom;
193 int32_t qCoff, iCoff;
194 int iqCorrNeg, i;
195
196 for (i = 0; i < numChains; i++) {
197 powerMeasI = ah->totalPowerMeasI[i];
198 powerMeasQ = ah->totalPowerMeasQ[i];
199 iqCorrMeas = ah->totalIqCorrMeas[i];
200
201 ath_dbg(common, ATH_DBG_CALIBRATE,
202 "Starting IQ Cal and Correction for Chain %d\n",
203 i);
204
205 ath_dbg(common, ATH_DBG_CALIBRATE,
206 "Orignal: Chn %diq_corr_meas = 0x%08x\n",
207 i, ah->totalIqCorrMeas[i]);
208
209 iqCorrNeg = 0;
210
211 if (iqCorrMeas > 0x80000000) {
212 iqCorrMeas = (0xffffffff - iqCorrMeas) + 1;
213 iqCorrNeg = 1;
214 }
215
216 ath_dbg(common, ATH_DBG_CALIBRATE,
217 "Chn %d pwr_meas_i = 0x%08x\n", i, powerMeasI);
218 ath_dbg(common, ATH_DBG_CALIBRATE,
219 "Chn %d pwr_meas_q = 0x%08x\n", i, powerMeasQ);
220 ath_dbg(common, ATH_DBG_CALIBRATE, "iqCorrNeg is 0x%08x\n",
221 iqCorrNeg);
222
223 iCoffDenom = (powerMeasI / 2 + powerMeasQ / 2) / 128;
224 qCoffDenom = powerMeasQ / 64;
225
226 if ((powerMeasQ != 0) && (iCoffDenom != 0) &&
227 (qCoffDenom != 0)) {
228 iCoff = iqCorrMeas / iCoffDenom;
229 qCoff = powerMeasI / qCoffDenom - 64;
230 ath_dbg(common, ATH_DBG_CALIBRATE,
231 "Chn %d iCoff = 0x%08x\n", i, iCoff);
232 ath_dbg(common, ATH_DBG_CALIBRATE,
233 "Chn %d qCoff = 0x%08x\n", i, qCoff);
234
235 iCoff = iCoff & 0x3f;
236 ath_dbg(common, ATH_DBG_CALIBRATE,
237 "New: Chn %d iCoff = 0x%08x\n", i, iCoff);
238 if (iqCorrNeg == 0x0)
239 iCoff = 0x40 - iCoff;
240
241 if (qCoff > 15)
242 qCoff = 15;
243 else if (qCoff <= -16)
244 qCoff = -16;
245
246 ath_dbg(common, ATH_DBG_CALIBRATE,
247 "Chn %d : iCoff = 0x%x qCoff = 0x%x\n",
248 i, iCoff, qCoff);
249
250 REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4(i),
251 AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF,
252 iCoff);
253 REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4(i),
254 AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF,
255 qCoff);
256 ath_dbg(common, ATH_DBG_CALIBRATE,
257 "IQ Cal and Correction done for Chain %d\n",
258 i);
259 }
260 }
261
262 REG_SET_BIT(ah, AR_PHY_TIMING_CTRL4(0),
263 AR_PHY_TIMING_CTRL4_IQCORR_ENABLE);
264}
265
266static void ar9002_hw_adc_gaincal_calibrate(struct ath_hw *ah, u8 numChains)
267{
268 struct ath_common *common = ath9k_hw_common(ah);
269 u32 iOddMeasOffset, iEvenMeasOffset, qOddMeasOffset, qEvenMeasOffset;
270 u32 qGainMismatch, iGainMismatch, val, i;
271
272 for (i = 0; i < numChains; i++) {
273 iOddMeasOffset = ah->totalAdcIOddPhase[i];
274 iEvenMeasOffset = ah->totalAdcIEvenPhase[i];
275 qOddMeasOffset = ah->totalAdcQOddPhase[i];
276 qEvenMeasOffset = ah->totalAdcQEvenPhase[i];
277
278 ath_dbg(common, ATH_DBG_CALIBRATE,
279 "Starting ADC Gain Cal for Chain %d\n", i);
280
281 ath_dbg(common, ATH_DBG_CALIBRATE,
282 "Chn %d pwr_meas_odd_i = 0x%08x\n", i,
283 iOddMeasOffset);
284 ath_dbg(common, ATH_DBG_CALIBRATE,
285 "Chn %d pwr_meas_even_i = 0x%08x\n", i,
286 iEvenMeasOffset);
287 ath_dbg(common, ATH_DBG_CALIBRATE,
288 "Chn %d pwr_meas_odd_q = 0x%08x\n", i,
289 qOddMeasOffset);
290 ath_dbg(common, ATH_DBG_CALIBRATE,
291 "Chn %d pwr_meas_even_q = 0x%08x\n", i,
292 qEvenMeasOffset);
293
294 if (iOddMeasOffset != 0 && qEvenMeasOffset != 0) {
295 iGainMismatch =
296 ((iEvenMeasOffset * 32) /
297 iOddMeasOffset) & 0x3f;
298 qGainMismatch =
299 ((qOddMeasOffset * 32) /
300 qEvenMeasOffset) & 0x3f;
301
302 ath_dbg(common, ATH_DBG_CALIBRATE,
303 "Chn %d gain_mismatch_i = 0x%08x\n", i,
304 iGainMismatch);
305 ath_dbg(common, ATH_DBG_CALIBRATE,
306 "Chn %d gain_mismatch_q = 0x%08x\n", i,
307 qGainMismatch);
308
309 val = REG_READ(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(i));
310 val &= 0xfffff000;
311 val |= (qGainMismatch) | (iGainMismatch << 6);
312 REG_WRITE(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(i), val);
313
314 ath_dbg(common, ATH_DBG_CALIBRATE,
315 "ADC Gain Cal done for Chain %d\n", i);
316 }
317 }
318
319 REG_WRITE(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(0),
320 REG_READ(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(0)) |
321 AR_PHY_NEW_ADC_GAIN_CORR_ENABLE);
322}
323
324static void ar9002_hw_adc_dccal_calibrate(struct ath_hw *ah, u8 numChains)
325{
326 struct ath_common *common = ath9k_hw_common(ah);
327 u32 iOddMeasOffset, iEvenMeasOffset, val, i;
328 int32_t qOddMeasOffset, qEvenMeasOffset, qDcMismatch, iDcMismatch;
329 const struct ath9k_percal_data *calData =
330 ah->cal_list_curr->calData;
331 u32 numSamples =
332 (1 << (calData->calCountMax + 5)) * calData->calNumSamples;
333
334 for (i = 0; i < numChains; i++) {
335 iOddMeasOffset = ah->totalAdcDcOffsetIOddPhase[i];
336 iEvenMeasOffset = ah->totalAdcDcOffsetIEvenPhase[i];
337 qOddMeasOffset = ah->totalAdcDcOffsetQOddPhase[i];
338 qEvenMeasOffset = ah->totalAdcDcOffsetQEvenPhase[i];
339
340 ath_dbg(common, ATH_DBG_CALIBRATE,
341 "Starting ADC DC Offset Cal for Chain %d\n", i);
342
343 ath_dbg(common, ATH_DBG_CALIBRATE,
344 "Chn %d pwr_meas_odd_i = %d\n", i,
345 iOddMeasOffset);
346 ath_dbg(common, ATH_DBG_CALIBRATE,
347 "Chn %d pwr_meas_even_i = %d\n", i,
348 iEvenMeasOffset);
349 ath_dbg(common, ATH_DBG_CALIBRATE,
350 "Chn %d pwr_meas_odd_q = %d\n", i,
351 qOddMeasOffset);
352 ath_dbg(common, ATH_DBG_CALIBRATE,
353 "Chn %d pwr_meas_even_q = %d\n", i,
354 qEvenMeasOffset);
355
356 iDcMismatch = (((iEvenMeasOffset - iOddMeasOffset) * 2) /
357 numSamples) & 0x1ff;
358 qDcMismatch = (((qOddMeasOffset - qEvenMeasOffset) * 2) /
359 numSamples) & 0x1ff;
360
361 ath_dbg(common, ATH_DBG_CALIBRATE,
362 "Chn %d dc_offset_mismatch_i = 0x%08x\n", i,
363 iDcMismatch);
364 ath_dbg(common, ATH_DBG_CALIBRATE,
365 "Chn %d dc_offset_mismatch_q = 0x%08x\n", i,
366 qDcMismatch);
367
368 val = REG_READ(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(i));
369 val &= 0xc0000fff;
370 val |= (qDcMismatch << 12) | (iDcMismatch << 21);
371 REG_WRITE(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(i), val);
372
373 ath_dbg(common, ATH_DBG_CALIBRATE,
374 "ADC DC Offset Cal done for Chain %d\n", i);
375 }
376
377 REG_WRITE(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(0),
378 REG_READ(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(0)) |
379 AR_PHY_NEW_ADC_DC_OFFSET_CORR_ENABLE);
380}
381
382static void ar9287_hw_olc_temp_compensation(struct ath_hw *ah)
383{
384 u32 rddata;
385 int32_t delta, currPDADC, slope;
386
387 rddata = REG_READ(ah, AR_PHY_TX_PWRCTRL4);
388 currPDADC = MS(rddata, AR_PHY_TX_PWRCTRL_PD_AVG_OUT);
389
390 if (ah->initPDADC == 0 || currPDADC == 0) {
391 /*
392 * Zero value indicates that no frames have been transmitted
393 * yet, can't do temperature compensation until frames are
394 * transmitted.
395 */
396 return;
397 } else {
398 slope = ah->eep_ops->get_eeprom(ah, EEP_TEMPSENSE_SLOPE);
399
400 if (slope == 0) { /* to avoid divide by zero case */
401 delta = 0;
402 } else {
403 delta = ((currPDADC - ah->initPDADC)*4) / slope;
404 }
405 REG_RMW_FIELD(ah, AR_PHY_CH0_TX_PWRCTRL11,
406 AR_PHY_TX_PWRCTRL_OLPC_TEMP_COMP, delta);
407 REG_RMW_FIELD(ah, AR_PHY_CH1_TX_PWRCTRL11,
408 AR_PHY_TX_PWRCTRL_OLPC_TEMP_COMP, delta);
409 }
410}
411
412static void ar9280_hw_olc_temp_compensation(struct ath_hw *ah)
413{
414 u32 rddata, i;
415 int delta, currPDADC, regval;
416
417 rddata = REG_READ(ah, AR_PHY_TX_PWRCTRL4);
418 currPDADC = MS(rddata, AR_PHY_TX_PWRCTRL_PD_AVG_OUT);
419
420 if (ah->initPDADC == 0 || currPDADC == 0)
421 return;
422
423 if (ah->eep_ops->get_eeprom(ah, EEP_DAC_HPWR_5G))
424 delta = (currPDADC - ah->initPDADC + 4) / 8;
425 else
426 delta = (currPDADC - ah->initPDADC + 5) / 10;
427
428 if (delta != ah->PDADCdelta) {
429 ah->PDADCdelta = delta;
430 for (i = 1; i < AR9280_TX_GAIN_TABLE_SIZE; i++) {
431 regval = ah->originalGain[i] - delta;
432 if (regval < 0)
433 regval = 0;
434
435 REG_RMW_FIELD(ah,
436 AR_PHY_TX_GAIN_TBL1 + i * 4,
437 AR_PHY_TX_GAIN, regval);
438 }
439 }
440}
441
442static void ar9271_hw_pa_cal(struct ath_hw *ah, bool is_reset)
443{
444 u32 regVal;
445 unsigned int i;
446 u32 regList[][2] = {
447 { 0x786c, 0 },
448 { 0x7854, 0 },
449 { 0x7820, 0 },
450 { 0x7824, 0 },
451 { 0x7868, 0 },
452 { 0x783c, 0 },
453 { 0x7838, 0 } ,
454 { 0x7828, 0 } ,
455 };
456
457 for (i = 0; i < ARRAY_SIZE(regList); i++)
458 regList[i][1] = REG_READ(ah, regList[i][0]);
459
460 regVal = REG_READ(ah, 0x7834);
461 regVal &= (~(0x1));
462 REG_WRITE(ah, 0x7834, regVal);
463 regVal = REG_READ(ah, 0x9808);
464 regVal |= (0x1 << 27);
465 REG_WRITE(ah, 0x9808, regVal);
466
467 /* 786c,b23,1, pwddac=1 */
468 REG_RMW_FIELD(ah, AR9285_AN_TOP3, AR9285_AN_TOP3_PWDDAC, 1);
469 /* 7854, b5,1, pdrxtxbb=1 */
470 REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDRXTXBB1, 1);
471 /* 7854, b7,1, pdv2i=1 */
472 REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDV2I, 1);
473 /* 7854, b8,1, pddacinterface=1 */
474 REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDDACIF, 1);
475 /* 7824,b12,0, offcal=0 */
476 REG_RMW_FIELD(ah, AR9285_AN_RF2G2, AR9285_AN_RF2G2_OFFCAL, 0);
477 /* 7838, b1,0, pwddb=0 */
478 REG_RMW_FIELD(ah, AR9285_AN_RF2G7, AR9285_AN_RF2G7_PWDDB, 0);
479 /* 7820,b11,0, enpacal=0 */
480 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_ENPACAL, 0);
481 /* 7820,b25,1, pdpadrv1=0 */
482 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPADRV1, 0);
483 /* 7820,b24,0, pdpadrv2=0 */
484 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPADRV2, 0);
485 /* 7820,b23,0, pdpaout=0 */
486 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPAOUT, 0);
487 /* 783c,b14-16,7, padrvgn2tab_0=7 */
488 REG_RMW_FIELD(ah, AR9285_AN_RF2G8, AR9285_AN_RF2G8_PADRVGN2TAB0, 7);
489 /*
490 * 7838,b29-31,0, padrvgn1tab_0=0
491 * does not matter since we turn it off
492 */
493 REG_RMW_FIELD(ah, AR9285_AN_RF2G7, AR9285_AN_RF2G7_PADRVGN2TAB0, 0);
494
495 REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9271_AN_RF2G3_CCOMP, 0xfff);
496
497 /* Set:
498 * localmode=1,bmode=1,bmoderxtx=1,synthon=1,
499 * txon=1,paon=1,oscon=1,synthon_force=1
500 */
501 REG_WRITE(ah, AR9285_AN_TOP2, 0xca0358a0);
502 udelay(30);
503 REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9271_AN_RF2G6_OFFS, 0);
504
505 /* find off_6_1; */
506 for (i = 6; i > 0; i--) {
507 regVal = REG_READ(ah, 0x7834);
508 regVal |= (1 << (20 + i));
509 REG_WRITE(ah, 0x7834, regVal);
510 udelay(1);
511 /* regVal = REG_READ(ah, 0x7834); */
512 regVal &= (~(0x1 << (20 + i)));
513 regVal |= (MS(REG_READ(ah, 0x7840), AR9285_AN_RXTXBB1_SPARE9)
514 << (20 + i));
515 REG_WRITE(ah, 0x7834, regVal);
516 }
517
518 regVal = (regVal >> 20) & 0x7f;
519
520 /* Update PA cal info */
521 if ((!is_reset) && (ah->pacal_info.prev_offset == regVal)) {
522 if (ah->pacal_info.max_skipcount < MAX_PACAL_SKIPCOUNT)
523 ah->pacal_info.max_skipcount =
524 2 * ah->pacal_info.max_skipcount;
525 ah->pacal_info.skipcount = ah->pacal_info.max_skipcount;
526 } else {
527 ah->pacal_info.max_skipcount = 1;
528 ah->pacal_info.skipcount = 0;
529 ah->pacal_info.prev_offset = regVal;
530 }
531
532 ENABLE_REGWRITE_BUFFER(ah);
533
534 regVal = REG_READ(ah, 0x7834);
535 regVal |= 0x1;
536 REG_WRITE(ah, 0x7834, regVal);
537 regVal = REG_READ(ah, 0x9808);
538 regVal &= (~(0x1 << 27));
539 REG_WRITE(ah, 0x9808, regVal);
540
541 for (i = 0; i < ARRAY_SIZE(regList); i++)
542 REG_WRITE(ah, regList[i][0], regList[i][1]);
543
544 REGWRITE_BUFFER_FLUSH(ah);
545}
546
547static inline void ar9285_hw_pa_cal(struct ath_hw *ah, bool is_reset)
548{
549 struct ath_common *common = ath9k_hw_common(ah);
550 u32 regVal;
551 int i, offset, offs_6_1, offs_0;
552 u32 ccomp_org, reg_field;
553 u32 regList[][2] = {
554 { 0x786c, 0 },
555 { 0x7854, 0 },
556 { 0x7820, 0 },
557 { 0x7824, 0 },
558 { 0x7868, 0 },
559 { 0x783c, 0 },
560 { 0x7838, 0 },
561 };
562
563 ath_dbg(common, ATH_DBG_CALIBRATE, "Running PA Calibration\n");
564
565 /* PA CAL is not needed for high power solution */
566 if (ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE) ==
567 AR5416_EEP_TXGAIN_HIGH_POWER)
568 return;
569
570 for (i = 0; i < ARRAY_SIZE(regList); i++)
571 regList[i][1] = REG_READ(ah, regList[i][0]);
572
573 regVal = REG_READ(ah, 0x7834);
574 regVal &= (~(0x1));
575 REG_WRITE(ah, 0x7834, regVal);
576 regVal = REG_READ(ah, 0x9808);
577 regVal |= (0x1 << 27);
578 REG_WRITE(ah, 0x9808, regVal);
579
580 REG_RMW_FIELD(ah, AR9285_AN_TOP3, AR9285_AN_TOP3_PWDDAC, 1);
581 REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDRXTXBB1, 1);
582 REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDV2I, 1);
583 REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDDACIF, 1);
584 REG_RMW_FIELD(ah, AR9285_AN_RF2G2, AR9285_AN_RF2G2_OFFCAL, 0);
585 REG_RMW_FIELD(ah, AR9285_AN_RF2G7, AR9285_AN_RF2G7_PWDDB, 0);
586 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_ENPACAL, 0);
587 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPADRV1, 0);
588 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPADRV2, 0);
589 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPAOUT, 0);
590 REG_RMW_FIELD(ah, AR9285_AN_RF2G8, AR9285_AN_RF2G8_PADRVGN2TAB0, 7);
591 REG_RMW_FIELD(ah, AR9285_AN_RF2G7, AR9285_AN_RF2G7_PADRVGN2TAB0, 0);
592 ccomp_org = MS(REG_READ(ah, AR9285_AN_RF2G6), AR9285_AN_RF2G6_CCOMP);
593 REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9285_AN_RF2G6_CCOMP, 0xf);
594
595 REG_WRITE(ah, AR9285_AN_TOP2, 0xca0358a0);
596 udelay(30);
597 REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9285_AN_RF2G6_OFFS, 0);
598 REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9285_AN_RF2G3_PDVCCOMP, 0);
599
600 for (i = 6; i > 0; i--) {
601 regVal = REG_READ(ah, 0x7834);
602 regVal |= (1 << (19 + i));
603 REG_WRITE(ah, 0x7834, regVal);
604 udelay(1);
605 regVal = REG_READ(ah, 0x7834);
606 regVal &= (~(0x1 << (19 + i)));
607 reg_field = MS(REG_READ(ah, 0x7840), AR9285_AN_RXTXBB1_SPARE9);
608 regVal |= (reg_field << (19 + i));
609 REG_WRITE(ah, 0x7834, regVal);
610 }
611
612 REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9285_AN_RF2G3_PDVCCOMP, 1);
613 udelay(1);
614 reg_field = MS(REG_READ(ah, AR9285_AN_RF2G9), AR9285_AN_RXTXBB1_SPARE9);
615 REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9285_AN_RF2G3_PDVCCOMP, reg_field);
616 offs_6_1 = MS(REG_READ(ah, AR9285_AN_RF2G6), AR9285_AN_RF2G6_OFFS);
617 offs_0 = MS(REG_READ(ah, AR9285_AN_RF2G3), AR9285_AN_RF2G3_PDVCCOMP);
618
619 offset = (offs_6_1<<1) | offs_0;
620 offset = offset - 0;
621 offs_6_1 = offset>>1;
622 offs_0 = offset & 1;
623
624 if ((!is_reset) && (ah->pacal_info.prev_offset == offset)) {
625 if (ah->pacal_info.max_skipcount < MAX_PACAL_SKIPCOUNT)
626 ah->pacal_info.max_skipcount =
627 2 * ah->pacal_info.max_skipcount;
628 ah->pacal_info.skipcount = ah->pacal_info.max_skipcount;
629 } else {
630 ah->pacal_info.max_skipcount = 1;
631 ah->pacal_info.skipcount = 0;
632 ah->pacal_info.prev_offset = offset;
633 }
634
635 REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9285_AN_RF2G6_OFFS, offs_6_1);
636 REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9285_AN_RF2G3_PDVCCOMP, offs_0);
637
638 regVal = REG_READ(ah, 0x7834);
639 regVal |= 0x1;
640 REG_WRITE(ah, 0x7834, regVal);
641 regVal = REG_READ(ah, 0x9808);
642 regVal &= (~(0x1 << 27));
643 REG_WRITE(ah, 0x9808, regVal);
644
645 for (i = 0; i < ARRAY_SIZE(regList); i++)
646 REG_WRITE(ah, regList[i][0], regList[i][1]);
647
648 REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9285_AN_RF2G6_CCOMP, ccomp_org);
649}
650
651static void ar9002_hw_pa_cal(struct ath_hw *ah, bool is_reset)
652{
653 if (AR_SREV_9271(ah)) {
654 if (is_reset || !ah->pacal_info.skipcount)
655 ar9271_hw_pa_cal(ah, is_reset);
656 else
657 ah->pacal_info.skipcount--;
658 } else if (AR_SREV_9285_12_OR_LATER(ah)) {
659 if (is_reset || !ah->pacal_info.skipcount)
660 ar9285_hw_pa_cal(ah, is_reset);
661 else
662 ah->pacal_info.skipcount--;
663 }
664}
665
666static void ar9002_hw_olc_temp_compensation(struct ath_hw *ah)
667{
668 if (OLC_FOR_AR9287_10_LATER)
669 ar9287_hw_olc_temp_compensation(ah);
670 else if (OLC_FOR_AR9280_20_LATER)
671 ar9280_hw_olc_temp_compensation(ah);
672}
673
674static bool ar9002_hw_calibrate(struct ath_hw *ah,
675 struct ath9k_channel *chan,
676 u8 rxchainmask,
677 bool longcal)
678{
679 bool iscaldone = true;
680 struct ath9k_cal_list *currCal = ah->cal_list_curr;
681 bool nfcal, nfcal_pending = false;
682
683 nfcal = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF);
684 if (ah->caldata)
685 nfcal_pending = ah->caldata->nfcal_pending;
686
687 if (currCal && !nfcal &&
688 (currCal->calState == CAL_RUNNING ||
689 currCal->calState == CAL_WAITING)) {
690 iscaldone = ar9002_hw_per_calibration(ah, chan,
691 rxchainmask, currCal);
692 if (iscaldone) {
693 ah->cal_list_curr = currCal = currCal->calNext;
694
695 if (currCal->calState == CAL_WAITING) {
696 iscaldone = false;
697 ath9k_hw_reset_calibration(ah, currCal);
698 }
699 }
700 }
701
702 /* Do NF cal only at longer intervals */
703 if (longcal || nfcal_pending) {
704 /*
705 * Get the value from the previous NF cal and update
706 * history buffer.
707 */
708 if (ath9k_hw_getnf(ah, chan)) {
709 /*
710 * Load the NF from history buffer of the current
711 * channel.
712 * NF is slow time-variant, so it is OK to use a
713 * historical value.
714 */
715 ath9k_hw_loadnf(ah, ah->curchan);
716 }
717
718 if (longcal) {
719 ath9k_hw_start_nfcal(ah, false);
720 /* Do periodic PAOffset Cal */
721 ar9002_hw_pa_cal(ah, false);
722 ar9002_hw_olc_temp_compensation(ah);
723 }
724 }
725
726 return iscaldone;
727}
728
729/* Carrier leakage Calibration fix */
730static bool ar9285_hw_cl_cal(struct ath_hw *ah, struct ath9k_channel *chan)
731{
732 struct ath_common *common = ath9k_hw_common(ah);
733
734 REG_SET_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE);
735 if (IS_CHAN_HT20(chan)) {
736 REG_SET_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_PARALLEL_CAL_ENABLE);
737 REG_SET_BIT(ah, AR_PHY_TURBO, AR_PHY_FC_DYN2040_EN);
738 REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,
739 AR_PHY_AGC_CONTROL_FLTR_CAL);
740 REG_CLR_BIT(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_PD_CAL_ENABLE);
741 REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL);
742 if (!ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL,
743 AR_PHY_AGC_CONTROL_CAL, 0, AH_WAIT_TIMEOUT)) {
744 ath_dbg(common, ATH_DBG_CALIBRATE,
745 "offset calibration failed to complete in 1ms; noisy environment?\n");
746 return false;
747 }
748 REG_CLR_BIT(ah, AR_PHY_TURBO, AR_PHY_FC_DYN2040_EN);
749 REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_PARALLEL_CAL_ENABLE);
750 REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE);
751 }
752 REG_CLR_BIT(ah, AR_PHY_ADC_CTL, AR_PHY_ADC_CTL_OFF_PWDADC);
753 REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_FLTR_CAL);
754 REG_SET_BIT(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_PD_CAL_ENABLE);
755 REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL);
756 if (!ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL,
757 0, AH_WAIT_TIMEOUT)) {
758 ath_dbg(common, ATH_DBG_CALIBRATE,
759 "offset calibration failed to complete in 1ms; noisy environment?\n");
760 return false;
761 }
762
763 REG_SET_BIT(ah, AR_PHY_ADC_CTL, AR_PHY_ADC_CTL_OFF_PWDADC);
764 REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE);
765 REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_FLTR_CAL);
766
767 return true;
768}
769
770static bool ar9285_hw_clc(struct ath_hw *ah, struct ath9k_channel *chan)
771{
772 int i;
773 u_int32_t txgain_max;
774 u_int32_t clc_gain, gain_mask = 0, clc_num = 0;
775 u_int32_t reg_clc_I0, reg_clc_Q0;
776 u_int32_t i0_num = 0;
777 u_int32_t q0_num = 0;
778 u_int32_t total_num = 0;
779 u_int32_t reg_rf2g5_org;
780 bool retv = true;
781
782 if (!(ar9285_hw_cl_cal(ah, chan)))
783 return false;
784
785 txgain_max = MS(REG_READ(ah, AR_PHY_TX_PWRCTRL7),
786 AR_PHY_TX_PWRCTRL_TX_GAIN_TAB_MAX);
787
788 for (i = 0; i < (txgain_max+1); i++) {
789 clc_gain = (REG_READ(ah, (AR_PHY_TX_GAIN_TBL1+(i<<2))) &
790 AR_PHY_TX_GAIN_CLC) >> AR_PHY_TX_GAIN_CLC_S;
791 if (!(gain_mask & (1 << clc_gain))) {
792 gain_mask |= (1 << clc_gain);
793 clc_num++;
794 }
795 }
796
797 for (i = 0; i < clc_num; i++) {
798 reg_clc_I0 = (REG_READ(ah, (AR_PHY_CLC_TBL1 + (i << 2)))
799 & AR_PHY_CLC_I0) >> AR_PHY_CLC_I0_S;
800 reg_clc_Q0 = (REG_READ(ah, (AR_PHY_CLC_TBL1 + (i << 2)))
801 & AR_PHY_CLC_Q0) >> AR_PHY_CLC_Q0_S;
802 if (reg_clc_I0 == 0)
803 i0_num++;
804
805 if (reg_clc_Q0 == 0)
806 q0_num++;
807 }
808 total_num = i0_num + q0_num;
809 if (total_num > AR9285_CLCAL_REDO_THRESH) {
810 reg_rf2g5_org = REG_READ(ah, AR9285_RF2G5);
811 if (AR_SREV_9285E_20(ah)) {
812 REG_WRITE(ah, AR9285_RF2G5,
813 (reg_rf2g5_org & AR9285_RF2G5_IC50TX) |
814 AR9285_RF2G5_IC50TX_XE_SET);
815 } else {
816 REG_WRITE(ah, AR9285_RF2G5,
817 (reg_rf2g5_org & AR9285_RF2G5_IC50TX) |
818 AR9285_RF2G5_IC50TX_SET);
819 }
820 retv = ar9285_hw_cl_cal(ah, chan);
821 REG_WRITE(ah, AR9285_RF2G5, reg_rf2g5_org);
822 }
823 return retv;
824}
825
826static bool ar9002_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan)
827{
828 struct ath_common *common = ath9k_hw_common(ah);
829
830 if (AR_SREV_9271(ah)) {
831 if (!ar9285_hw_cl_cal(ah, chan))
832 return false;
833 } else if (AR_SREV_9285(ah) && AR_SREV_9285_12_OR_LATER(ah)) {
834 if (!ar9285_hw_clc(ah, chan))
835 return false;
836 } else {
837 if (AR_SREV_9280_20_OR_LATER(ah)) {
838 if (!AR_SREV_9287_11_OR_LATER(ah))
839 REG_CLR_BIT(ah, AR_PHY_ADC_CTL,
840 AR_PHY_ADC_CTL_OFF_PWDADC);
841 REG_SET_BIT(ah, AR_PHY_AGC_CONTROL,
842 AR_PHY_AGC_CONTROL_FLTR_CAL);
843 }
844
845 /* Calibrate the AGC */
846 REG_WRITE(ah, AR_PHY_AGC_CONTROL,
847 REG_READ(ah, AR_PHY_AGC_CONTROL) |
848 AR_PHY_AGC_CONTROL_CAL);
849
850 /* Poll for offset calibration complete */
851 if (!ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL,
852 AR_PHY_AGC_CONTROL_CAL,
853 0, AH_WAIT_TIMEOUT)) {
854 ath_dbg(common, ATH_DBG_CALIBRATE,
855 "offset calibration failed to complete in 1ms; noisy environment?\n");
856 return false;
857 }
858
859 if (AR_SREV_9280_20_OR_LATER(ah)) {
860 if (!AR_SREV_9287_11_OR_LATER(ah))
861 REG_SET_BIT(ah, AR_PHY_ADC_CTL,
862 AR_PHY_ADC_CTL_OFF_PWDADC);
863 REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,
864 AR_PHY_AGC_CONTROL_FLTR_CAL);
865 }
866 }
867
868 /* Do PA Calibration */
869 ar9002_hw_pa_cal(ah, true);
870
871 /* Do NF Calibration after DC offset and other calibrations */
872 ath9k_hw_start_nfcal(ah, true);
873
874 if (ah->caldata)
875 ah->caldata->nfcal_pending = true;
876
877 ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
878
879 /* Enable IQ, ADC Gain and ADC DC offset CALs */
880 if (AR_SREV_9100(ah) || AR_SREV_9160_10_OR_LATER(ah)) {
881 ah->supp_cals = IQ_MISMATCH_CAL;
882
883 if (AR_SREV_9160_10_OR_LATER(ah))
884 ah->supp_cals |= ADC_GAIN_CAL | ADC_DC_CAL;
885
886 if (AR_SREV_9287(ah))
887 ah->supp_cals &= ~ADC_GAIN_CAL;
888
889 if (ar9002_hw_is_cal_supported(ah, chan, ADC_GAIN_CAL)) {
890 INIT_CAL(&ah->adcgain_caldata);
891 INSERT_CAL(ah, &ah->adcgain_caldata);
892 ath_dbg(common, ATH_DBG_CALIBRATE,
893 "enabling ADC Gain Calibration.\n");
894 }
895
896 if (ar9002_hw_is_cal_supported(ah, chan, ADC_DC_CAL)) {
897 INIT_CAL(&ah->adcdc_caldata);
898 INSERT_CAL(ah, &ah->adcdc_caldata);
899 ath_dbg(common, ATH_DBG_CALIBRATE,
900 "enabling ADC DC Calibration.\n");
901 }
902
903 if (ar9002_hw_is_cal_supported(ah, chan, IQ_MISMATCH_CAL)) {
904 INIT_CAL(&ah->iq_caldata);
905 INSERT_CAL(ah, &ah->iq_caldata);
906 ath_dbg(common, ATH_DBG_CALIBRATE,
907 "enabling IQ Calibration.\n");
908 }
909
910 ah->cal_list_curr = ah->cal_list;
911
912 if (ah->cal_list_curr)
913 ath9k_hw_reset_calibration(ah, ah->cal_list_curr);
914 }
915
916 if (ah->caldata)
917 ah->caldata->CalValid = 0;
918
919 return true;
920}
921
922static const struct ath9k_percal_data iq_cal_multi_sample = {
923 IQ_MISMATCH_CAL,
924 MAX_CAL_SAMPLES,
925 PER_MIN_LOG_COUNT,
926 ar9002_hw_iqcal_collect,
927 ar9002_hw_iqcalibrate
928};
929static const struct ath9k_percal_data iq_cal_single_sample = {
930 IQ_MISMATCH_CAL,
931 MIN_CAL_SAMPLES,
932 PER_MAX_LOG_COUNT,
933 ar9002_hw_iqcal_collect,
934 ar9002_hw_iqcalibrate
935};
936static const struct ath9k_percal_data adc_gain_cal_multi_sample = {
937 ADC_GAIN_CAL,
938 MAX_CAL_SAMPLES,
939 PER_MIN_LOG_COUNT,
940 ar9002_hw_adc_gaincal_collect,
941 ar9002_hw_adc_gaincal_calibrate
942};
943static const struct ath9k_percal_data adc_gain_cal_single_sample = {
944 ADC_GAIN_CAL,
945 MIN_CAL_SAMPLES,
946 PER_MAX_LOG_COUNT,
947 ar9002_hw_adc_gaincal_collect,
948 ar9002_hw_adc_gaincal_calibrate
949};
950static const struct ath9k_percal_data adc_dc_cal_multi_sample = {
951 ADC_DC_CAL,
952 MAX_CAL_SAMPLES,
953 PER_MIN_LOG_COUNT,
954 ar9002_hw_adc_dccal_collect,
955 ar9002_hw_adc_dccal_calibrate
956};
957static const struct ath9k_percal_data adc_dc_cal_single_sample = {
958 ADC_DC_CAL,
959 MIN_CAL_SAMPLES,
960 PER_MAX_LOG_COUNT,
961 ar9002_hw_adc_dccal_collect,
962 ar9002_hw_adc_dccal_calibrate
963};
964
965static void ar9002_hw_init_cal_settings(struct ath_hw *ah)
966{
967 if (AR_SREV_9100(ah)) {
968 ah->iq_caldata.calData = &iq_cal_multi_sample;
969 ah->supp_cals = IQ_MISMATCH_CAL;
970 return;
971 }
972
973 if (AR_SREV_9160_10_OR_LATER(ah)) {
974 if (AR_SREV_9280_20_OR_LATER(ah)) {
975 ah->iq_caldata.calData = &iq_cal_single_sample;
976 ah->adcgain_caldata.calData =
977 &adc_gain_cal_single_sample;
978 ah->adcdc_caldata.calData =
979 &adc_dc_cal_single_sample;
980 } else {
981 ah->iq_caldata.calData = &iq_cal_multi_sample;
982 ah->adcgain_caldata.calData =
983 &adc_gain_cal_multi_sample;
984 ah->adcdc_caldata.calData =
985 &adc_dc_cal_multi_sample;
986 }
987 ah->supp_cals = ADC_GAIN_CAL | ADC_DC_CAL | IQ_MISMATCH_CAL;
988
989 if (AR_SREV_9287(ah))
990 ah->supp_cals &= ~ADC_GAIN_CAL;
991 }
992}
993
994void ar9002_hw_attach_calib_ops(struct ath_hw *ah)
995{
996 struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
997 struct ath_hw_ops *ops = ath9k_hw_ops(ah);
998
999 priv_ops->init_cal_settings = ar9002_hw_init_cal_settings;
1000 priv_ops->init_cal = ar9002_hw_init_cal;
1001 priv_ops->setup_calibration = ar9002_hw_setup_calibration;
1002
1003 ops->calibrate = ar9002_hw_calibrate;
1004}
1/*
2 * Copyright (c) 2008-2011 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include "hw.h"
18#include "hw-ops.h"
19#include "ar9002_phy.h"
20
21#define AR9285_CLCAL_REDO_THRESH 1
22
23enum ar9002_cal_types {
24 ADC_GAIN_CAL = BIT(0),
25 ADC_DC_CAL = BIT(1),
26 IQ_MISMATCH_CAL = BIT(2),
27};
28
29static bool ar9002_hw_is_cal_supported(struct ath_hw *ah,
30 struct ath9k_channel *chan,
31 enum ar9002_cal_types cal_type)
32{
33 bool supported = false;
34 switch (ah->supp_cals & cal_type) {
35 case IQ_MISMATCH_CAL:
36 /* Run IQ Mismatch for non-CCK only */
37 if (!IS_CHAN_B(chan))
38 supported = true;
39 break;
40 case ADC_GAIN_CAL:
41 case ADC_DC_CAL:
42 /* Run ADC Gain Cal for non-CCK & non 2GHz-HT20 only */
43 if (!IS_CHAN_B(chan) &&
44 !((IS_CHAN_2GHZ(chan) || IS_CHAN_A_FAST_CLOCK(ah, chan)) &&
45 IS_CHAN_HT20(chan)))
46 supported = true;
47 break;
48 }
49 return supported;
50}
51
52static void ar9002_hw_setup_calibration(struct ath_hw *ah,
53 struct ath9k_cal_list *currCal)
54{
55 struct ath_common *common = ath9k_hw_common(ah);
56
57 REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4(0),
58 AR_PHY_TIMING_CTRL4_IQCAL_LOG_COUNT_MAX,
59 currCal->calData->calCountMax);
60
61 switch (currCal->calData->calType) {
62 case IQ_MISMATCH_CAL:
63 REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_IQ);
64 ath_dbg(common, CALIBRATE,
65 "starting IQ Mismatch Calibration\n");
66 break;
67 case ADC_GAIN_CAL:
68 REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_ADC_GAIN);
69 ath_dbg(common, CALIBRATE, "starting ADC Gain Calibration\n");
70 break;
71 case ADC_DC_CAL:
72 REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_ADC_DC_PER);
73 ath_dbg(common, CALIBRATE, "starting ADC DC Calibration\n");
74 break;
75 }
76
77 REG_SET_BIT(ah, AR_PHY_TIMING_CTRL4(0),
78 AR_PHY_TIMING_CTRL4_DO_CAL);
79}
80
81static bool ar9002_hw_per_calibration(struct ath_hw *ah,
82 struct ath9k_channel *ichan,
83 u8 rxchainmask,
84 struct ath9k_cal_list *currCal)
85{
86 struct ath9k_hw_cal_data *caldata = ah->caldata;
87 bool iscaldone = false;
88
89 if (currCal->calState == CAL_RUNNING) {
90 if (!(REG_READ(ah, AR_PHY_TIMING_CTRL4(0)) &
91 AR_PHY_TIMING_CTRL4_DO_CAL)) {
92
93 currCal->calData->calCollect(ah);
94 ah->cal_samples++;
95
96 if (ah->cal_samples >=
97 currCal->calData->calNumSamples) {
98 int i, numChains = 0;
99 for (i = 0; i < AR5416_MAX_CHAINS; i++) {
100 if (rxchainmask & (1 << i))
101 numChains++;
102 }
103
104 currCal->calData->calPostProc(ah, numChains);
105 caldata->CalValid |= currCal->calData->calType;
106 currCal->calState = CAL_DONE;
107 iscaldone = true;
108 } else {
109 ar9002_hw_setup_calibration(ah, currCal);
110 }
111 }
112 } else if (!(caldata->CalValid & currCal->calData->calType)) {
113 ath9k_hw_reset_calibration(ah, currCal);
114 }
115
116 return iscaldone;
117}
118
119static void ar9002_hw_iqcal_collect(struct ath_hw *ah)
120{
121 int i;
122
123 for (i = 0; i < AR5416_MAX_CHAINS; i++) {
124 ah->totalPowerMeasI[i] +=
125 REG_READ(ah, AR_PHY_CAL_MEAS_0(i));
126 ah->totalPowerMeasQ[i] +=
127 REG_READ(ah, AR_PHY_CAL_MEAS_1(i));
128 ah->totalIqCorrMeas[i] +=
129 (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_2(i));
130 ath_dbg(ath9k_hw_common(ah), CALIBRATE,
131 "%d: Chn %d pmi=0x%08x;pmq=0x%08x;iqcm=0x%08x;\n",
132 ah->cal_samples, i, ah->totalPowerMeasI[i],
133 ah->totalPowerMeasQ[i],
134 ah->totalIqCorrMeas[i]);
135 }
136}
137
138static void ar9002_hw_adc_gaincal_collect(struct ath_hw *ah)
139{
140 int i;
141
142 for (i = 0; i < AR5416_MAX_CHAINS; i++) {
143 ah->totalAdcIOddPhase[i] +=
144 REG_READ(ah, AR_PHY_CAL_MEAS_0(i));
145 ah->totalAdcIEvenPhase[i] +=
146 REG_READ(ah, AR_PHY_CAL_MEAS_1(i));
147 ah->totalAdcQOddPhase[i] +=
148 REG_READ(ah, AR_PHY_CAL_MEAS_2(i));
149 ah->totalAdcQEvenPhase[i] +=
150 REG_READ(ah, AR_PHY_CAL_MEAS_3(i));
151
152 ath_dbg(ath9k_hw_common(ah), CALIBRATE,
153 "%d: Chn %d oddi=0x%08x; eveni=0x%08x; oddq=0x%08x; evenq=0x%08x;\n",
154 ah->cal_samples, i,
155 ah->totalAdcIOddPhase[i],
156 ah->totalAdcIEvenPhase[i],
157 ah->totalAdcQOddPhase[i],
158 ah->totalAdcQEvenPhase[i]);
159 }
160}
161
162static void ar9002_hw_adc_dccal_collect(struct ath_hw *ah)
163{
164 int i;
165
166 for (i = 0; i < AR5416_MAX_CHAINS; i++) {
167 ah->totalAdcDcOffsetIOddPhase[i] +=
168 (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_0(i));
169 ah->totalAdcDcOffsetIEvenPhase[i] +=
170 (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_1(i));
171 ah->totalAdcDcOffsetQOddPhase[i] +=
172 (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_2(i));
173 ah->totalAdcDcOffsetQEvenPhase[i] +=
174 (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_3(i));
175
176 ath_dbg(ath9k_hw_common(ah), CALIBRATE,
177 "%d: Chn %d oddi=0x%08x; eveni=0x%08x; oddq=0x%08x; evenq=0x%08x;\n",
178 ah->cal_samples, i,
179 ah->totalAdcDcOffsetIOddPhase[i],
180 ah->totalAdcDcOffsetIEvenPhase[i],
181 ah->totalAdcDcOffsetQOddPhase[i],
182 ah->totalAdcDcOffsetQEvenPhase[i]);
183 }
184}
185
186static void ar9002_hw_iqcalibrate(struct ath_hw *ah, u8 numChains)
187{
188 struct ath_common *common = ath9k_hw_common(ah);
189 u32 powerMeasQ, powerMeasI, iqCorrMeas;
190 u32 qCoffDenom, iCoffDenom;
191 int32_t qCoff, iCoff;
192 int iqCorrNeg, i;
193
194 for (i = 0; i < numChains; i++) {
195 powerMeasI = ah->totalPowerMeasI[i];
196 powerMeasQ = ah->totalPowerMeasQ[i];
197 iqCorrMeas = ah->totalIqCorrMeas[i];
198
199 ath_dbg(common, CALIBRATE,
200 "Starting IQ Cal and Correction for Chain %d\n",
201 i);
202
203 ath_dbg(common, CALIBRATE,
204 "Original: Chn %d iq_corr_meas = 0x%08x\n",
205 i, ah->totalIqCorrMeas[i]);
206
207 iqCorrNeg = 0;
208
209 if (iqCorrMeas > 0x80000000) {
210 iqCorrMeas = (0xffffffff - iqCorrMeas) + 1;
211 iqCorrNeg = 1;
212 }
213
214 ath_dbg(common, CALIBRATE, "Chn %d pwr_meas_i = 0x%08x\n",
215 i, powerMeasI);
216 ath_dbg(common, CALIBRATE, "Chn %d pwr_meas_q = 0x%08x\n",
217 i, powerMeasQ);
218 ath_dbg(common, CALIBRATE, "iqCorrNeg is 0x%08x\n", iqCorrNeg);
219
220 iCoffDenom = (powerMeasI / 2 + powerMeasQ / 2) / 128;
221 qCoffDenom = powerMeasQ / 64;
222
223 if ((powerMeasQ != 0) && (iCoffDenom != 0) &&
224 (qCoffDenom != 0)) {
225 iCoff = iqCorrMeas / iCoffDenom;
226 qCoff = powerMeasI / qCoffDenom - 64;
227 ath_dbg(common, CALIBRATE, "Chn %d iCoff = 0x%08x\n",
228 i, iCoff);
229 ath_dbg(common, CALIBRATE, "Chn %d qCoff = 0x%08x\n",
230 i, qCoff);
231
232 iCoff = iCoff & 0x3f;
233 ath_dbg(common, CALIBRATE,
234 "New: Chn %d iCoff = 0x%08x\n", i, iCoff);
235 if (iqCorrNeg == 0x0)
236 iCoff = 0x40 - iCoff;
237
238 if (qCoff > 15)
239 qCoff = 15;
240 else if (qCoff <= -16)
241 qCoff = -16;
242
243 ath_dbg(common, CALIBRATE,
244 "Chn %d : iCoff = 0x%x qCoff = 0x%x\n",
245 i, iCoff, qCoff);
246
247 REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4(i),
248 AR_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF,
249 iCoff);
250 REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4(i),
251 AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF,
252 qCoff);
253 ath_dbg(common, CALIBRATE,
254 "IQ Cal and Correction done for Chain %d\n",
255 i);
256 }
257 }
258
259 REG_SET_BIT(ah, AR_PHY_TIMING_CTRL4(0),
260 AR_PHY_TIMING_CTRL4_IQCORR_ENABLE);
261}
262
263static void ar9002_hw_adc_gaincal_calibrate(struct ath_hw *ah, u8 numChains)
264{
265 struct ath_common *common = ath9k_hw_common(ah);
266 u32 iOddMeasOffset, iEvenMeasOffset, qOddMeasOffset, qEvenMeasOffset;
267 u32 qGainMismatch, iGainMismatch, val, i;
268
269 for (i = 0; i < numChains; i++) {
270 iOddMeasOffset = ah->totalAdcIOddPhase[i];
271 iEvenMeasOffset = ah->totalAdcIEvenPhase[i];
272 qOddMeasOffset = ah->totalAdcQOddPhase[i];
273 qEvenMeasOffset = ah->totalAdcQEvenPhase[i];
274
275 ath_dbg(common, CALIBRATE,
276 "Starting ADC Gain Cal for Chain %d\n", i);
277
278 ath_dbg(common, CALIBRATE, "Chn %d pwr_meas_odd_i = 0x%08x\n",
279 i, iOddMeasOffset);
280 ath_dbg(common, CALIBRATE, "Chn %d pwr_meas_even_i = 0x%08x\n",
281 i, iEvenMeasOffset);
282 ath_dbg(common, CALIBRATE, "Chn %d pwr_meas_odd_q = 0x%08x\n",
283 i, qOddMeasOffset);
284 ath_dbg(common, CALIBRATE, "Chn %d pwr_meas_even_q = 0x%08x\n",
285 i, qEvenMeasOffset);
286
287 if (iOddMeasOffset != 0 && qEvenMeasOffset != 0) {
288 iGainMismatch =
289 ((iEvenMeasOffset * 32) /
290 iOddMeasOffset) & 0x3f;
291 qGainMismatch =
292 ((qOddMeasOffset * 32) /
293 qEvenMeasOffset) & 0x3f;
294
295 ath_dbg(common, CALIBRATE,
296 "Chn %d gain_mismatch_i = 0x%08x\n",
297 i, iGainMismatch);
298 ath_dbg(common, CALIBRATE,
299 "Chn %d gain_mismatch_q = 0x%08x\n",
300 i, qGainMismatch);
301
302 val = REG_READ(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(i));
303 val &= 0xfffff000;
304 val |= (qGainMismatch) | (iGainMismatch << 6);
305 REG_WRITE(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(i), val);
306
307 ath_dbg(common, CALIBRATE,
308 "ADC Gain Cal done for Chain %d\n", i);
309 }
310 }
311
312 REG_WRITE(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(0),
313 REG_READ(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(0)) |
314 AR_PHY_NEW_ADC_GAIN_CORR_ENABLE);
315}
316
317static void ar9002_hw_adc_dccal_calibrate(struct ath_hw *ah, u8 numChains)
318{
319 struct ath_common *common = ath9k_hw_common(ah);
320 u32 iOddMeasOffset, iEvenMeasOffset, val, i;
321 int32_t qOddMeasOffset, qEvenMeasOffset, qDcMismatch, iDcMismatch;
322 const struct ath9k_percal_data *calData =
323 ah->cal_list_curr->calData;
324 u32 numSamples =
325 (1 << (calData->calCountMax + 5)) * calData->calNumSamples;
326
327 for (i = 0; i < numChains; i++) {
328 iOddMeasOffset = ah->totalAdcDcOffsetIOddPhase[i];
329 iEvenMeasOffset = ah->totalAdcDcOffsetIEvenPhase[i];
330 qOddMeasOffset = ah->totalAdcDcOffsetQOddPhase[i];
331 qEvenMeasOffset = ah->totalAdcDcOffsetQEvenPhase[i];
332
333 ath_dbg(common, CALIBRATE,
334 "Starting ADC DC Offset Cal for Chain %d\n", i);
335
336 ath_dbg(common, CALIBRATE, "Chn %d pwr_meas_odd_i = %d\n",
337 i, iOddMeasOffset);
338 ath_dbg(common, CALIBRATE, "Chn %d pwr_meas_even_i = %d\n",
339 i, iEvenMeasOffset);
340 ath_dbg(common, CALIBRATE, "Chn %d pwr_meas_odd_q = %d\n",
341 i, qOddMeasOffset);
342 ath_dbg(common, CALIBRATE, "Chn %d pwr_meas_even_q = %d\n",
343 i, qEvenMeasOffset);
344
345 iDcMismatch = (((iEvenMeasOffset - iOddMeasOffset) * 2) /
346 numSamples) & 0x1ff;
347 qDcMismatch = (((qOddMeasOffset - qEvenMeasOffset) * 2) /
348 numSamples) & 0x1ff;
349
350 ath_dbg(common, CALIBRATE,
351 "Chn %d dc_offset_mismatch_i = 0x%08x\n",
352 i, iDcMismatch);
353 ath_dbg(common, CALIBRATE,
354 "Chn %d dc_offset_mismatch_q = 0x%08x\n",
355 i, qDcMismatch);
356
357 val = REG_READ(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(i));
358 val &= 0xc0000fff;
359 val |= (qDcMismatch << 12) | (iDcMismatch << 21);
360 REG_WRITE(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(i), val);
361
362 ath_dbg(common, CALIBRATE,
363 "ADC DC Offset Cal done for Chain %d\n", i);
364 }
365
366 REG_WRITE(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(0),
367 REG_READ(ah, AR_PHY_NEW_ADC_DC_GAIN_CORR(0)) |
368 AR_PHY_NEW_ADC_DC_OFFSET_CORR_ENABLE);
369}
370
371static void ar9287_hw_olc_temp_compensation(struct ath_hw *ah)
372{
373 u32 rddata;
374 int32_t delta, currPDADC, slope;
375
376 rddata = REG_READ(ah, AR_PHY_TX_PWRCTRL4);
377 currPDADC = MS(rddata, AR_PHY_TX_PWRCTRL_PD_AVG_OUT);
378
379 if (ah->initPDADC == 0 || currPDADC == 0) {
380 /*
381 * Zero value indicates that no frames have been transmitted
382 * yet, can't do temperature compensation until frames are
383 * transmitted.
384 */
385 return;
386 } else {
387 slope = ah->eep_ops->get_eeprom(ah, EEP_TEMPSENSE_SLOPE);
388
389 if (slope == 0) { /* to avoid divide by zero case */
390 delta = 0;
391 } else {
392 delta = ((currPDADC - ah->initPDADC)*4) / slope;
393 }
394 REG_RMW_FIELD(ah, AR_PHY_CH0_TX_PWRCTRL11,
395 AR_PHY_TX_PWRCTRL_OLPC_TEMP_COMP, delta);
396 REG_RMW_FIELD(ah, AR_PHY_CH1_TX_PWRCTRL11,
397 AR_PHY_TX_PWRCTRL_OLPC_TEMP_COMP, delta);
398 }
399}
400
401static void ar9280_hw_olc_temp_compensation(struct ath_hw *ah)
402{
403 u32 rddata, i;
404 int delta, currPDADC, regval;
405
406 rddata = REG_READ(ah, AR_PHY_TX_PWRCTRL4);
407 currPDADC = MS(rddata, AR_PHY_TX_PWRCTRL_PD_AVG_OUT);
408
409 if (ah->initPDADC == 0 || currPDADC == 0)
410 return;
411
412 if (ah->eep_ops->get_eeprom(ah, EEP_DAC_HPWR_5G))
413 delta = (currPDADC - ah->initPDADC + 4) / 8;
414 else
415 delta = (currPDADC - ah->initPDADC + 5) / 10;
416
417 if (delta != ah->PDADCdelta) {
418 ah->PDADCdelta = delta;
419 for (i = 1; i < AR9280_TX_GAIN_TABLE_SIZE; i++) {
420 regval = ah->originalGain[i] - delta;
421 if (regval < 0)
422 regval = 0;
423
424 REG_RMW_FIELD(ah,
425 AR_PHY_TX_GAIN_TBL1 + i * 4,
426 AR_PHY_TX_GAIN, regval);
427 }
428 }
429}
430
431static void ar9271_hw_pa_cal(struct ath_hw *ah, bool is_reset)
432{
433 u32 regVal;
434 unsigned int i;
435 u32 regList[][2] = {
436 { 0x786c, 0 },
437 { 0x7854, 0 },
438 { 0x7820, 0 },
439 { 0x7824, 0 },
440 { 0x7868, 0 },
441 { 0x783c, 0 },
442 { 0x7838, 0 } ,
443 { 0x7828, 0 } ,
444 };
445
446 for (i = 0; i < ARRAY_SIZE(regList); i++)
447 regList[i][1] = REG_READ(ah, regList[i][0]);
448
449 regVal = REG_READ(ah, 0x7834);
450 regVal &= (~(0x1));
451 REG_WRITE(ah, 0x7834, regVal);
452 regVal = REG_READ(ah, 0x9808);
453 regVal |= (0x1 << 27);
454 REG_WRITE(ah, 0x9808, regVal);
455
456 /* 786c,b23,1, pwddac=1 */
457 REG_RMW_FIELD(ah, AR9285_AN_TOP3, AR9285_AN_TOP3_PWDDAC, 1);
458 /* 7854, b5,1, pdrxtxbb=1 */
459 REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDRXTXBB1, 1);
460 /* 7854, b7,1, pdv2i=1 */
461 REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDV2I, 1);
462 /* 7854, b8,1, pddacinterface=1 */
463 REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDDACIF, 1);
464 /* 7824,b12,0, offcal=0 */
465 REG_RMW_FIELD(ah, AR9285_AN_RF2G2, AR9285_AN_RF2G2_OFFCAL, 0);
466 /* 7838, b1,0, pwddb=0 */
467 REG_RMW_FIELD(ah, AR9285_AN_RF2G7, AR9285_AN_RF2G7_PWDDB, 0);
468 /* 7820,b11,0, enpacal=0 */
469 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_ENPACAL, 0);
470 /* 7820,b25,1, pdpadrv1=0 */
471 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPADRV1, 0);
472 /* 7820,b24,0, pdpadrv2=0 */
473 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPADRV2, 0);
474 /* 7820,b23,0, pdpaout=0 */
475 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPAOUT, 0);
476 /* 783c,b14-16,7, padrvgn2tab_0=7 */
477 REG_RMW_FIELD(ah, AR9285_AN_RF2G8, AR9285_AN_RF2G8_PADRVGN2TAB0, 7);
478 /*
479 * 7838,b29-31,0, padrvgn1tab_0=0
480 * does not matter since we turn it off
481 */
482 REG_RMW_FIELD(ah, AR9285_AN_RF2G7, AR9285_AN_RF2G7_PADRVGN2TAB0, 0);
483
484 REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9271_AN_RF2G3_CCOMP, 0xfff);
485
486 /* Set:
487 * localmode=1,bmode=1,bmoderxtx=1,synthon=1,
488 * txon=1,paon=1,oscon=1,synthon_force=1
489 */
490 REG_WRITE(ah, AR9285_AN_TOP2, 0xca0358a0);
491 udelay(30);
492 REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9271_AN_RF2G6_OFFS, 0);
493
494 /* find off_6_1; */
495 for (i = 6; i > 0; i--) {
496 regVal = REG_READ(ah, 0x7834);
497 regVal |= (1 << (20 + i));
498 REG_WRITE(ah, 0x7834, regVal);
499 udelay(1);
500 /* regVal = REG_READ(ah, 0x7834); */
501 regVal &= (~(0x1 << (20 + i)));
502 regVal |= (MS(REG_READ(ah, 0x7840), AR9285_AN_RXTXBB1_SPARE9)
503 << (20 + i));
504 REG_WRITE(ah, 0x7834, regVal);
505 }
506
507 regVal = (regVal >> 20) & 0x7f;
508
509 /* Update PA cal info */
510 if ((!is_reset) && (ah->pacal_info.prev_offset == regVal)) {
511 if (ah->pacal_info.max_skipcount < MAX_PACAL_SKIPCOUNT)
512 ah->pacal_info.max_skipcount =
513 2 * ah->pacal_info.max_skipcount;
514 ah->pacal_info.skipcount = ah->pacal_info.max_skipcount;
515 } else {
516 ah->pacal_info.max_skipcount = 1;
517 ah->pacal_info.skipcount = 0;
518 ah->pacal_info.prev_offset = regVal;
519 }
520
521 ENABLE_REGWRITE_BUFFER(ah);
522
523 regVal = REG_READ(ah, 0x7834);
524 regVal |= 0x1;
525 REG_WRITE(ah, 0x7834, regVal);
526 regVal = REG_READ(ah, 0x9808);
527 regVal &= (~(0x1 << 27));
528 REG_WRITE(ah, 0x9808, regVal);
529
530 for (i = 0; i < ARRAY_SIZE(regList); i++)
531 REG_WRITE(ah, regList[i][0], regList[i][1]);
532
533 REGWRITE_BUFFER_FLUSH(ah);
534}
535
536static inline void ar9285_hw_pa_cal(struct ath_hw *ah, bool is_reset)
537{
538 struct ath_common *common = ath9k_hw_common(ah);
539 u32 regVal;
540 int i, offset, offs_6_1, offs_0;
541 u32 ccomp_org, reg_field;
542 u32 regList[][2] = {
543 { 0x786c, 0 },
544 { 0x7854, 0 },
545 { 0x7820, 0 },
546 { 0x7824, 0 },
547 { 0x7868, 0 },
548 { 0x783c, 0 },
549 { 0x7838, 0 },
550 };
551
552 ath_dbg(common, CALIBRATE, "Running PA Calibration\n");
553
554 /* PA CAL is not needed for high power solution */
555 if (ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE) ==
556 AR5416_EEP_TXGAIN_HIGH_POWER)
557 return;
558
559 for (i = 0; i < ARRAY_SIZE(regList); i++)
560 regList[i][1] = REG_READ(ah, regList[i][0]);
561
562 regVal = REG_READ(ah, 0x7834);
563 regVal &= (~(0x1));
564 REG_WRITE(ah, 0x7834, regVal);
565 regVal = REG_READ(ah, 0x9808);
566 regVal |= (0x1 << 27);
567 REG_WRITE(ah, 0x9808, regVal);
568
569 REG_RMW_FIELD(ah, AR9285_AN_TOP3, AR9285_AN_TOP3_PWDDAC, 1);
570 REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDRXTXBB1, 1);
571 REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDV2I, 1);
572 REG_RMW_FIELD(ah, AR9285_AN_RXTXBB1, AR9285_AN_RXTXBB1_PDDACIF, 1);
573 REG_RMW_FIELD(ah, AR9285_AN_RF2G2, AR9285_AN_RF2G2_OFFCAL, 0);
574 REG_RMW_FIELD(ah, AR9285_AN_RF2G7, AR9285_AN_RF2G7_PWDDB, 0);
575 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_ENPACAL, 0);
576 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPADRV1, 0);
577 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPADRV2, 0);
578 REG_RMW_FIELD(ah, AR9285_AN_RF2G1, AR9285_AN_RF2G1_PDPAOUT, 0);
579 REG_RMW_FIELD(ah, AR9285_AN_RF2G8, AR9285_AN_RF2G8_PADRVGN2TAB0, 7);
580 REG_RMW_FIELD(ah, AR9285_AN_RF2G7, AR9285_AN_RF2G7_PADRVGN2TAB0, 0);
581 ccomp_org = MS(REG_READ(ah, AR9285_AN_RF2G6), AR9285_AN_RF2G6_CCOMP);
582 REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9285_AN_RF2G6_CCOMP, 0xf);
583
584 REG_WRITE(ah, AR9285_AN_TOP2, 0xca0358a0);
585 udelay(30);
586 REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9285_AN_RF2G6_OFFS, 0);
587 REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9285_AN_RF2G3_PDVCCOMP, 0);
588
589 for (i = 6; i > 0; i--) {
590 regVal = REG_READ(ah, 0x7834);
591 regVal |= (1 << (19 + i));
592 REG_WRITE(ah, 0x7834, regVal);
593 udelay(1);
594 regVal = REG_READ(ah, 0x7834);
595 regVal &= (~(0x1 << (19 + i)));
596 reg_field = MS(REG_READ(ah, 0x7840), AR9285_AN_RXTXBB1_SPARE9);
597 regVal |= (reg_field << (19 + i));
598 REG_WRITE(ah, 0x7834, regVal);
599 }
600
601 REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9285_AN_RF2G3_PDVCCOMP, 1);
602 udelay(1);
603 reg_field = MS(REG_READ(ah, AR9285_AN_RF2G9), AR9285_AN_RXTXBB1_SPARE9);
604 REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9285_AN_RF2G3_PDVCCOMP, reg_field);
605 offs_6_1 = MS(REG_READ(ah, AR9285_AN_RF2G6), AR9285_AN_RF2G6_OFFS);
606 offs_0 = MS(REG_READ(ah, AR9285_AN_RF2G3), AR9285_AN_RF2G3_PDVCCOMP);
607
608 offset = (offs_6_1<<1) | offs_0;
609 offset = offset - 0;
610 offs_6_1 = offset>>1;
611 offs_0 = offset & 1;
612
613 if ((!is_reset) && (ah->pacal_info.prev_offset == offset)) {
614 if (ah->pacal_info.max_skipcount < MAX_PACAL_SKIPCOUNT)
615 ah->pacal_info.max_skipcount =
616 2 * ah->pacal_info.max_skipcount;
617 ah->pacal_info.skipcount = ah->pacal_info.max_skipcount;
618 } else {
619 ah->pacal_info.max_skipcount = 1;
620 ah->pacal_info.skipcount = 0;
621 ah->pacal_info.prev_offset = offset;
622 }
623
624 REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9285_AN_RF2G6_OFFS, offs_6_1);
625 REG_RMW_FIELD(ah, AR9285_AN_RF2G3, AR9285_AN_RF2G3_PDVCCOMP, offs_0);
626
627 regVal = REG_READ(ah, 0x7834);
628 regVal |= 0x1;
629 REG_WRITE(ah, 0x7834, regVal);
630 regVal = REG_READ(ah, 0x9808);
631 regVal &= (~(0x1 << 27));
632 REG_WRITE(ah, 0x9808, regVal);
633
634 for (i = 0; i < ARRAY_SIZE(regList); i++)
635 REG_WRITE(ah, regList[i][0], regList[i][1]);
636
637 REG_RMW_FIELD(ah, AR9285_AN_RF2G6, AR9285_AN_RF2G6_CCOMP, ccomp_org);
638}
639
640static void ar9002_hw_pa_cal(struct ath_hw *ah, bool is_reset)
641{
642 if (AR_SREV_9271(ah)) {
643 if (is_reset || !ah->pacal_info.skipcount)
644 ar9271_hw_pa_cal(ah, is_reset);
645 else
646 ah->pacal_info.skipcount--;
647 } else if (AR_SREV_9285_12_OR_LATER(ah)) {
648 if (is_reset || !ah->pacal_info.skipcount)
649 ar9285_hw_pa_cal(ah, is_reset);
650 else
651 ah->pacal_info.skipcount--;
652 }
653}
654
655static void ar9002_hw_olc_temp_compensation(struct ath_hw *ah)
656{
657 if (OLC_FOR_AR9287_10_LATER)
658 ar9287_hw_olc_temp_compensation(ah);
659 else if (OLC_FOR_AR9280_20_LATER)
660 ar9280_hw_olc_temp_compensation(ah);
661}
662
663static bool ar9002_hw_calibrate(struct ath_hw *ah,
664 struct ath9k_channel *chan,
665 u8 rxchainmask,
666 bool longcal)
667{
668 bool iscaldone = true;
669 struct ath9k_cal_list *currCal = ah->cal_list_curr;
670 bool nfcal, nfcal_pending = false;
671
672 nfcal = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF);
673 if (ah->caldata)
674 nfcal_pending = ah->caldata->nfcal_pending;
675
676 if (currCal && !nfcal &&
677 (currCal->calState == CAL_RUNNING ||
678 currCal->calState == CAL_WAITING)) {
679 iscaldone = ar9002_hw_per_calibration(ah, chan,
680 rxchainmask, currCal);
681 if (iscaldone) {
682 ah->cal_list_curr = currCal = currCal->calNext;
683
684 if (currCal->calState == CAL_WAITING) {
685 iscaldone = false;
686 ath9k_hw_reset_calibration(ah, currCal);
687 }
688 }
689 }
690
691 /* Do NF cal only at longer intervals */
692 if (longcal || nfcal_pending) {
693 /*
694 * Get the value from the previous NF cal and update
695 * history buffer.
696 */
697 if (ath9k_hw_getnf(ah, chan)) {
698 /*
699 * Load the NF from history buffer of the current
700 * channel.
701 * NF is slow time-variant, so it is OK to use a
702 * historical value.
703 */
704 ath9k_hw_loadnf(ah, ah->curchan);
705 }
706
707 if (longcal) {
708 ath9k_hw_start_nfcal(ah, false);
709 /* Do periodic PAOffset Cal */
710 ar9002_hw_pa_cal(ah, false);
711 ar9002_hw_olc_temp_compensation(ah);
712 }
713 }
714
715 return iscaldone;
716}
717
718/* Carrier leakage Calibration fix */
719static bool ar9285_hw_cl_cal(struct ath_hw *ah, struct ath9k_channel *chan)
720{
721 struct ath_common *common = ath9k_hw_common(ah);
722
723 REG_SET_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE);
724 if (IS_CHAN_HT20(chan)) {
725 REG_SET_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_PARALLEL_CAL_ENABLE);
726 REG_SET_BIT(ah, AR_PHY_TURBO, AR_PHY_FC_DYN2040_EN);
727 REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,
728 AR_PHY_AGC_CONTROL_FLTR_CAL);
729 REG_CLR_BIT(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_PD_CAL_ENABLE);
730 REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL);
731 if (!ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL,
732 AR_PHY_AGC_CONTROL_CAL, 0, AH_WAIT_TIMEOUT)) {
733 ath_dbg(common, CALIBRATE,
734 "offset calibration failed to complete in 1ms; noisy environment?\n");
735 return false;
736 }
737 REG_CLR_BIT(ah, AR_PHY_TURBO, AR_PHY_FC_DYN2040_EN);
738 REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_PARALLEL_CAL_ENABLE);
739 REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE);
740 }
741 REG_CLR_BIT(ah, AR_PHY_ADC_CTL, AR_PHY_ADC_CTL_OFF_PWDADC);
742 REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_FLTR_CAL);
743 REG_SET_BIT(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_PD_CAL_ENABLE);
744 REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL);
745 if (!ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL,
746 0, AH_WAIT_TIMEOUT)) {
747 ath_dbg(common, CALIBRATE,
748 "offset calibration failed to complete in 1ms; noisy environment?\n");
749 return false;
750 }
751
752 REG_SET_BIT(ah, AR_PHY_ADC_CTL, AR_PHY_ADC_CTL_OFF_PWDADC);
753 REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE);
754 REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_FLTR_CAL);
755
756 return true;
757}
758
759static bool ar9285_hw_clc(struct ath_hw *ah, struct ath9k_channel *chan)
760{
761 int i;
762 u_int32_t txgain_max;
763 u_int32_t clc_gain, gain_mask = 0, clc_num = 0;
764 u_int32_t reg_clc_I0, reg_clc_Q0;
765 u_int32_t i0_num = 0;
766 u_int32_t q0_num = 0;
767 u_int32_t total_num = 0;
768 u_int32_t reg_rf2g5_org;
769 bool retv = true;
770
771 if (!(ar9285_hw_cl_cal(ah, chan)))
772 return false;
773
774 txgain_max = MS(REG_READ(ah, AR_PHY_TX_PWRCTRL7),
775 AR_PHY_TX_PWRCTRL_TX_GAIN_TAB_MAX);
776
777 for (i = 0; i < (txgain_max+1); i++) {
778 clc_gain = (REG_READ(ah, (AR_PHY_TX_GAIN_TBL1+(i<<2))) &
779 AR_PHY_TX_GAIN_CLC) >> AR_PHY_TX_GAIN_CLC_S;
780 if (!(gain_mask & (1 << clc_gain))) {
781 gain_mask |= (1 << clc_gain);
782 clc_num++;
783 }
784 }
785
786 for (i = 0; i < clc_num; i++) {
787 reg_clc_I0 = (REG_READ(ah, (AR_PHY_CLC_TBL1 + (i << 2)))
788 & AR_PHY_CLC_I0) >> AR_PHY_CLC_I0_S;
789 reg_clc_Q0 = (REG_READ(ah, (AR_PHY_CLC_TBL1 + (i << 2)))
790 & AR_PHY_CLC_Q0) >> AR_PHY_CLC_Q0_S;
791 if (reg_clc_I0 == 0)
792 i0_num++;
793
794 if (reg_clc_Q0 == 0)
795 q0_num++;
796 }
797 total_num = i0_num + q0_num;
798 if (total_num > AR9285_CLCAL_REDO_THRESH) {
799 reg_rf2g5_org = REG_READ(ah, AR9285_RF2G5);
800 if (AR_SREV_9285E_20(ah)) {
801 REG_WRITE(ah, AR9285_RF2G5,
802 (reg_rf2g5_org & AR9285_RF2G5_IC50TX) |
803 AR9285_RF2G5_IC50TX_XE_SET);
804 } else {
805 REG_WRITE(ah, AR9285_RF2G5,
806 (reg_rf2g5_org & AR9285_RF2G5_IC50TX) |
807 AR9285_RF2G5_IC50TX_SET);
808 }
809 retv = ar9285_hw_cl_cal(ah, chan);
810 REG_WRITE(ah, AR9285_RF2G5, reg_rf2g5_org);
811 }
812 return retv;
813}
814
815static bool ar9002_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan)
816{
817 struct ath_common *common = ath9k_hw_common(ah);
818
819 if (AR_SREV_9271(ah)) {
820 if (!ar9285_hw_cl_cal(ah, chan))
821 return false;
822 } else if (AR_SREV_9285(ah) && AR_SREV_9285_12_OR_LATER(ah)) {
823 if (!ar9285_hw_clc(ah, chan))
824 return false;
825 } else {
826 if (AR_SREV_9280_20_OR_LATER(ah)) {
827 if (!AR_SREV_9287_11_OR_LATER(ah))
828 REG_CLR_BIT(ah, AR_PHY_ADC_CTL,
829 AR_PHY_ADC_CTL_OFF_PWDADC);
830 REG_SET_BIT(ah, AR_PHY_AGC_CONTROL,
831 AR_PHY_AGC_CONTROL_FLTR_CAL);
832 }
833
834 /* Calibrate the AGC */
835 REG_WRITE(ah, AR_PHY_AGC_CONTROL,
836 REG_READ(ah, AR_PHY_AGC_CONTROL) |
837 AR_PHY_AGC_CONTROL_CAL);
838
839 /* Poll for offset calibration complete */
840 if (!ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL,
841 AR_PHY_AGC_CONTROL_CAL,
842 0, AH_WAIT_TIMEOUT)) {
843 ath_dbg(common, CALIBRATE,
844 "offset calibration failed to complete in 1ms; noisy environment?\n");
845 return false;
846 }
847
848 if (AR_SREV_9280_20_OR_LATER(ah)) {
849 if (!AR_SREV_9287_11_OR_LATER(ah))
850 REG_SET_BIT(ah, AR_PHY_ADC_CTL,
851 AR_PHY_ADC_CTL_OFF_PWDADC);
852 REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,
853 AR_PHY_AGC_CONTROL_FLTR_CAL);
854 }
855 }
856
857 /* Do PA Calibration */
858 ar9002_hw_pa_cal(ah, true);
859
860 if (ah->caldata)
861 ah->caldata->nfcal_pending = true;
862
863 ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
864
865 /* Enable IQ, ADC Gain and ADC DC offset CALs */
866 if (AR_SREV_9100(ah) || AR_SREV_9160_10_OR_LATER(ah)) {
867 ah->supp_cals = IQ_MISMATCH_CAL;
868
869 if (AR_SREV_9160_10_OR_LATER(ah))
870 ah->supp_cals |= ADC_GAIN_CAL | ADC_DC_CAL;
871
872 if (AR_SREV_9287(ah))
873 ah->supp_cals &= ~ADC_GAIN_CAL;
874
875 if (ar9002_hw_is_cal_supported(ah, chan, ADC_GAIN_CAL)) {
876 INIT_CAL(&ah->adcgain_caldata);
877 INSERT_CAL(ah, &ah->adcgain_caldata);
878 ath_dbg(common, CALIBRATE,
879 "enabling ADC Gain Calibration\n");
880 }
881
882 if (ar9002_hw_is_cal_supported(ah, chan, ADC_DC_CAL)) {
883 INIT_CAL(&ah->adcdc_caldata);
884 INSERT_CAL(ah, &ah->adcdc_caldata);
885 ath_dbg(common, CALIBRATE,
886 "enabling ADC DC Calibration\n");
887 }
888
889 if (ar9002_hw_is_cal_supported(ah, chan, IQ_MISMATCH_CAL)) {
890 INIT_CAL(&ah->iq_caldata);
891 INSERT_CAL(ah, &ah->iq_caldata);
892 ath_dbg(common, CALIBRATE, "enabling IQ Calibration\n");
893 }
894
895 ah->cal_list_curr = ah->cal_list;
896
897 if (ah->cal_list_curr)
898 ath9k_hw_reset_calibration(ah, ah->cal_list_curr);
899 }
900
901 if (ah->caldata)
902 ah->caldata->CalValid = 0;
903
904 return true;
905}
906
907static const struct ath9k_percal_data iq_cal_multi_sample = {
908 IQ_MISMATCH_CAL,
909 MAX_CAL_SAMPLES,
910 PER_MIN_LOG_COUNT,
911 ar9002_hw_iqcal_collect,
912 ar9002_hw_iqcalibrate
913};
914static const struct ath9k_percal_data iq_cal_single_sample = {
915 IQ_MISMATCH_CAL,
916 MIN_CAL_SAMPLES,
917 PER_MAX_LOG_COUNT,
918 ar9002_hw_iqcal_collect,
919 ar9002_hw_iqcalibrate
920};
921static const struct ath9k_percal_data adc_gain_cal_multi_sample = {
922 ADC_GAIN_CAL,
923 MAX_CAL_SAMPLES,
924 PER_MIN_LOG_COUNT,
925 ar9002_hw_adc_gaincal_collect,
926 ar9002_hw_adc_gaincal_calibrate
927};
928static const struct ath9k_percal_data adc_gain_cal_single_sample = {
929 ADC_GAIN_CAL,
930 MIN_CAL_SAMPLES,
931 PER_MAX_LOG_COUNT,
932 ar9002_hw_adc_gaincal_collect,
933 ar9002_hw_adc_gaincal_calibrate
934};
935static const struct ath9k_percal_data adc_dc_cal_multi_sample = {
936 ADC_DC_CAL,
937 MAX_CAL_SAMPLES,
938 PER_MIN_LOG_COUNT,
939 ar9002_hw_adc_dccal_collect,
940 ar9002_hw_adc_dccal_calibrate
941};
942static const struct ath9k_percal_data adc_dc_cal_single_sample = {
943 ADC_DC_CAL,
944 MIN_CAL_SAMPLES,
945 PER_MAX_LOG_COUNT,
946 ar9002_hw_adc_dccal_collect,
947 ar9002_hw_adc_dccal_calibrate
948};
949
950static void ar9002_hw_init_cal_settings(struct ath_hw *ah)
951{
952 if (AR_SREV_9100(ah)) {
953 ah->iq_caldata.calData = &iq_cal_multi_sample;
954 ah->supp_cals = IQ_MISMATCH_CAL;
955 return;
956 }
957
958 if (AR_SREV_9160_10_OR_LATER(ah)) {
959 if (AR_SREV_9280_20_OR_LATER(ah)) {
960 ah->iq_caldata.calData = &iq_cal_single_sample;
961 ah->adcgain_caldata.calData =
962 &adc_gain_cal_single_sample;
963 ah->adcdc_caldata.calData =
964 &adc_dc_cal_single_sample;
965 } else {
966 ah->iq_caldata.calData = &iq_cal_multi_sample;
967 ah->adcgain_caldata.calData =
968 &adc_gain_cal_multi_sample;
969 ah->adcdc_caldata.calData =
970 &adc_dc_cal_multi_sample;
971 }
972 ah->supp_cals = ADC_GAIN_CAL | ADC_DC_CAL | IQ_MISMATCH_CAL;
973
974 if (AR_SREV_9287(ah))
975 ah->supp_cals &= ~ADC_GAIN_CAL;
976 }
977}
978
979void ar9002_hw_attach_calib_ops(struct ath_hw *ah)
980{
981 struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
982 struct ath_hw_ops *ops = ath9k_hw_ops(ah);
983
984 priv_ops->init_cal_settings = ar9002_hw_init_cal_settings;
985 priv_ops->init_cal = ar9002_hw_init_cal;
986 priv_ops->setup_calibration = ar9002_hw_setup_calibration;
987
988 ops->calibrate = ar9002_hw_calibrate;
989}