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Commit | Line | Data |
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795f5e2c | 1 | /* |
5b68138e | 2 | * Copyright (c) 2010-2011 Atheros Communications Inc. |
795f5e2c LR |
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 "ar9003_phy.h" | |
324c74ad | 20 | #include "ar9003_rtt.h" |
3ebfcdc4 | 21 | #include "ar9003_mci.h" |
795f5e2c | 22 | |
5f0c04ea | 23 | #define MAX_MEASUREMENT MAX_IQCAL_MEASUREMENT |
3782c69d RM |
24 | #define MAX_MAG_DELTA 11 |
25 | #define MAX_PHS_DELTA 10 | |
858b7e36 VT |
26 | |
27 | struct coeff { | |
3782c69d RM |
28 | int mag_coeff[AR9300_MAX_CHAINS][MAX_MEASUREMENT]; |
29 | int phs_coeff[AR9300_MAX_CHAINS][MAX_MEASUREMENT]; | |
858b7e36 VT |
30 | int iqc_coeff[2]; |
31 | }; | |
32 | ||
6497827f FF |
33 | enum ar9003_cal_types { |
34 | IQ_MISMATCH_CAL = BIT(0), | |
6497827f FF |
35 | }; |
36 | ||
795f5e2c LR |
37 | static void ar9003_hw_setup_calibration(struct ath_hw *ah, |
38 | struct ath9k_cal_list *currCal) | |
39 | { | |
4b01931e LR |
40 | struct ath_common *common = ath9k_hw_common(ah); |
41 | ||
42 | /* Select calibration to run */ | |
43 | switch (currCal->calData->calType) { | |
44 | case IQ_MISMATCH_CAL: | |
45 | /* | |
46 | * Start calibration with | |
47 | * 2^(INIT_IQCAL_LOG_COUNT_MAX+1) samples | |
48 | */ | |
49 | REG_RMW_FIELD(ah, AR_PHY_TIMING4, | |
50 | AR_PHY_TIMING4_IQCAL_LOG_COUNT_MAX, | |
1a6e5d7c | 51 | currCal->calData->calCountMax); |
4b01931e LR |
52 | REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_IQ); |
53 | ||
d2182b69 | 54 | ath_dbg(common, CALIBRATE, |
226afe68 | 55 | "starting IQ Mismatch Calibration\n"); |
4b01931e LR |
56 | |
57 | /* Kick-off cal */ | |
58 | REG_SET_BIT(ah, AR_PHY_TIMING4, AR_PHY_TIMING4_DO_CAL); | |
59 | break; | |
1a6e5d7c SM |
60 | default: |
61 | ath_err(common, "Invalid calibration type\n"); | |
4b01931e | 62 | break; |
4b01931e | 63 | } |
795f5e2c LR |
64 | } |
65 | ||
df23acaa LR |
66 | /* |
67 | * Generic calibration routine. | |
68 | * Recalibrate the lower PHY chips to account for temperature/environment | |
69 | * changes. | |
70 | */ | |
71 | static bool ar9003_hw_per_calibration(struct ath_hw *ah, | |
72 | struct ath9k_channel *ichan, | |
73 | u8 rxchainmask, | |
74 | struct ath9k_cal_list *currCal) | |
75 | { | |
20bd2a09 | 76 | struct ath9k_hw_cal_data *caldata = ah->caldata; |
df23acaa LR |
77 | /* Cal is assumed not done until explicitly set below */ |
78 | bool iscaldone = false; | |
79 | ||
80 | /* Calibration in progress. */ | |
81 | if (currCal->calState == CAL_RUNNING) { | |
82 | /* Check to see if it has finished. */ | |
83 | if (!(REG_READ(ah, AR_PHY_TIMING4) & AR_PHY_TIMING4_DO_CAL)) { | |
84 | /* | |
85 | * Accumulate cal measures for active chains | |
86 | */ | |
87 | currCal->calData->calCollect(ah); | |
88 | ah->cal_samples++; | |
89 | ||
90 | if (ah->cal_samples >= | |
91 | currCal->calData->calNumSamples) { | |
92 | unsigned int i, numChains = 0; | |
93 | for (i = 0; i < AR9300_MAX_CHAINS; i++) { | |
94 | if (rxchainmask & (1 << i)) | |
95 | numChains++; | |
96 | } | |
97 | ||
98 | /* | |
99 | * Process accumulated data | |
100 | */ | |
101 | currCal->calData->calPostProc(ah, numChains); | |
102 | ||
103 | /* Calibration has finished. */ | |
20bd2a09 | 104 | caldata->CalValid |= currCal->calData->calType; |
df23acaa LR |
105 | currCal->calState = CAL_DONE; |
106 | iscaldone = true; | |
107 | } else { | |
108 | /* | |
109 | * Set-up collection of another sub-sample until we | |
110 | * get desired number | |
111 | */ | |
112 | ar9003_hw_setup_calibration(ah, currCal); | |
113 | } | |
114 | } | |
20bd2a09 | 115 | } else if (!(caldata->CalValid & currCal->calData->calType)) { |
df23acaa LR |
116 | /* If current cal is marked invalid in channel, kick it off */ |
117 | ath9k_hw_reset_calibration(ah, currCal); | |
118 | } | |
119 | ||
120 | return iscaldone; | |
121 | } | |
122 | ||
795f5e2c LR |
123 | static bool ar9003_hw_calibrate(struct ath_hw *ah, |
124 | struct ath9k_channel *chan, | |
125 | u8 rxchainmask, | |
126 | bool longcal) | |
127 | { | |
df23acaa LR |
128 | bool iscaldone = true; |
129 | struct ath9k_cal_list *currCal = ah->cal_list_curr; | |
130 | ||
131 | /* | |
132 | * For given calibration: | |
133 | * 1. Call generic cal routine | |
134 | * 2. When this cal is done (isCalDone) if we have more cals waiting | |
135 | * (eg after reset), mask this to upper layers by not propagating | |
136 | * isCalDone if it is set to TRUE. | |
137 | * Instead, change isCalDone to FALSE and setup the waiting cal(s) | |
138 | * to be run. | |
139 | */ | |
140 | if (currCal && | |
141 | (currCal->calState == CAL_RUNNING || | |
142 | currCal->calState == CAL_WAITING)) { | |
143 | iscaldone = ar9003_hw_per_calibration(ah, chan, | |
144 | rxchainmask, currCal); | |
145 | if (iscaldone) { | |
146 | ah->cal_list_curr = currCal = currCal->calNext; | |
147 | ||
148 | if (currCal->calState == CAL_WAITING) { | |
149 | iscaldone = false; | |
150 | ath9k_hw_reset_calibration(ah, currCal); | |
151 | } | |
152 | } | |
153 | } | |
795f5e2c | 154 | |
54717e53 RM |
155 | /* |
156 | * Do NF cal only at longer intervals. Get the value from | |
157 | * the previous NF cal and update history buffer. | |
158 | */ | |
159 | if (longcal && ath9k_hw_getnf(ah, chan)) { | |
df23acaa LR |
160 | /* |
161 | * Load the NF from history buffer of the current channel. | |
162 | * NF is slow time-variant, so it is OK to use a historical | |
163 | * value. | |
164 | */ | |
165 | ath9k_hw_loadnf(ah, ah->curchan); | |
166 | ||
167 | /* start NF calibration, without updating BB NF register */ | |
00c86590 | 168 | ath9k_hw_start_nfcal(ah, false); |
df23acaa LR |
169 | } |
170 | ||
171 | return iscaldone; | |
795f5e2c LR |
172 | } |
173 | ||
590b7d2f LR |
174 | static void ar9003_hw_iqcal_collect(struct ath_hw *ah) |
175 | { | |
176 | int i; | |
177 | ||
178 | /* Accumulate IQ cal measures for active chains */ | |
179 | for (i = 0; i < AR5416_MAX_CHAINS; i++) { | |
5d48ae78 VT |
180 | if (ah->txchainmask & BIT(i)) { |
181 | ah->totalPowerMeasI[i] += | |
182 | REG_READ(ah, AR_PHY_CAL_MEAS_0(i)); | |
183 | ah->totalPowerMeasQ[i] += | |
184 | REG_READ(ah, AR_PHY_CAL_MEAS_1(i)); | |
185 | ah->totalIqCorrMeas[i] += | |
186 | (int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_2(i)); | |
d2182b69 | 187 | ath_dbg(ath9k_hw_common(ah), CALIBRATE, |
5d48ae78 VT |
188 | "%d: Chn %d pmi=0x%08x;pmq=0x%08x;iqcm=0x%08x;\n", |
189 | ah->cal_samples, i, ah->totalPowerMeasI[i], | |
190 | ah->totalPowerMeasQ[i], | |
191 | ah->totalIqCorrMeas[i]); | |
192 | } | |
590b7d2f LR |
193 | } |
194 | } | |
195 | ||
196 | static void ar9003_hw_iqcalibrate(struct ath_hw *ah, u8 numChains) | |
197 | { | |
198 | struct ath_common *common = ath9k_hw_common(ah); | |
199 | u32 powerMeasQ, powerMeasI, iqCorrMeas; | |
200 | u32 qCoffDenom, iCoffDenom; | |
201 | int32_t qCoff, iCoff; | |
202 | int iqCorrNeg, i; | |
07b2fa5a | 203 | static const u_int32_t offset_array[3] = { |
590b7d2f LR |
204 | AR_PHY_RX_IQCAL_CORR_B0, |
205 | AR_PHY_RX_IQCAL_CORR_B1, | |
206 | AR_PHY_RX_IQCAL_CORR_B2, | |
207 | }; | |
208 | ||
209 | for (i = 0; i < numChains; i++) { | |
210 | powerMeasI = ah->totalPowerMeasI[i]; | |
211 | powerMeasQ = ah->totalPowerMeasQ[i]; | |
212 | iqCorrMeas = ah->totalIqCorrMeas[i]; | |
213 | ||
d2182b69 JP |
214 | ath_dbg(common, CALIBRATE, |
215 | "Starting IQ Cal and Correction for Chain %d\n", i); | |
590b7d2f | 216 | |
d2182b69 | 217 | ath_dbg(common, CALIBRATE, |
a9b2ce03 | 218 | "Original: Chn %d iq_corr_meas = 0x%08x\n", |
226afe68 | 219 | i, ah->totalIqCorrMeas[i]); |
590b7d2f LR |
220 | |
221 | iqCorrNeg = 0; | |
222 | ||
223 | if (iqCorrMeas > 0x80000000) { | |
224 | iqCorrMeas = (0xffffffff - iqCorrMeas) + 1; | |
225 | iqCorrNeg = 1; | |
226 | } | |
227 | ||
d2182b69 JP |
228 | ath_dbg(common, CALIBRATE, "Chn %d pwr_meas_i = 0x%08x\n", |
229 | i, powerMeasI); | |
230 | ath_dbg(common, CALIBRATE, "Chn %d pwr_meas_q = 0x%08x\n", | |
231 | i, powerMeasQ); | |
232 | ath_dbg(common, CALIBRATE, "iqCorrNeg is 0x%08x\n", iqCorrNeg); | |
590b7d2f LR |
233 | |
234 | iCoffDenom = (powerMeasI / 2 + powerMeasQ / 2) / 256; | |
235 | qCoffDenom = powerMeasQ / 64; | |
236 | ||
237 | if ((iCoffDenom != 0) && (qCoffDenom != 0)) { | |
238 | iCoff = iqCorrMeas / iCoffDenom; | |
239 | qCoff = powerMeasI / qCoffDenom - 64; | |
d2182b69 JP |
240 | ath_dbg(common, CALIBRATE, "Chn %d iCoff = 0x%08x\n", |
241 | i, iCoff); | |
242 | ath_dbg(common, CALIBRATE, "Chn %d qCoff = 0x%08x\n", | |
243 | i, qCoff); | |
590b7d2f LR |
244 | |
245 | /* Force bounds on iCoff */ | |
246 | if (iCoff >= 63) | |
247 | iCoff = 63; | |
248 | else if (iCoff <= -63) | |
249 | iCoff = -63; | |
250 | ||
251 | /* Negate iCoff if iqCorrNeg == 0 */ | |
252 | if (iqCorrNeg == 0x0) | |
253 | iCoff = -iCoff; | |
254 | ||
255 | /* Force bounds on qCoff */ | |
256 | if (qCoff >= 63) | |
257 | qCoff = 63; | |
258 | else if (qCoff <= -63) | |
259 | qCoff = -63; | |
260 | ||
261 | iCoff = iCoff & 0x7f; | |
262 | qCoff = qCoff & 0x7f; | |
263 | ||
d2182b69 | 264 | ath_dbg(common, CALIBRATE, |
226afe68 JP |
265 | "Chn %d : iCoff = 0x%x qCoff = 0x%x\n", |
266 | i, iCoff, qCoff); | |
d2182b69 | 267 | ath_dbg(common, CALIBRATE, |
226afe68 JP |
268 | "Register offset (0x%04x) before update = 0x%x\n", |
269 | offset_array[i], | |
270 | REG_READ(ah, offset_array[i])); | |
590b7d2f | 271 | |
6f37ff96 RM |
272 | if (AR_SREV_9565(ah) && |
273 | (iCoff == 63 || qCoff == 63 || | |
274 | iCoff == -63 || qCoff == -63)) | |
275 | return; | |
276 | ||
590b7d2f LR |
277 | REG_RMW_FIELD(ah, offset_array[i], |
278 | AR_PHY_RX_IQCAL_CORR_IQCORR_Q_I_COFF, | |
279 | iCoff); | |
280 | REG_RMW_FIELD(ah, offset_array[i], | |
281 | AR_PHY_RX_IQCAL_CORR_IQCORR_Q_Q_COFF, | |
282 | qCoff); | |
d2182b69 | 283 | ath_dbg(common, CALIBRATE, |
226afe68 JP |
284 | "Register offset (0x%04x) QI COFF (bitfields 0x%08x) after update = 0x%x\n", |
285 | offset_array[i], | |
286 | AR_PHY_RX_IQCAL_CORR_IQCORR_Q_I_COFF, | |
287 | REG_READ(ah, offset_array[i])); | |
d2182b69 | 288 | ath_dbg(common, CALIBRATE, |
226afe68 JP |
289 | "Register offset (0x%04x) QQ COFF (bitfields 0x%08x) after update = 0x%x\n", |
290 | offset_array[i], | |
291 | AR_PHY_RX_IQCAL_CORR_IQCORR_Q_Q_COFF, | |
292 | REG_READ(ah, offset_array[i])); | |
293 | ||
d2182b69 | 294 | ath_dbg(common, CALIBRATE, |
226afe68 | 295 | "IQ Cal and Correction done for Chain %d\n", i); |
590b7d2f LR |
296 | } |
297 | } | |
298 | ||
299 | REG_SET_BIT(ah, AR_PHY_RX_IQCAL_CORR_B0, | |
300 | AR_PHY_RX_IQCAL_CORR_IQCORR_ENABLE); | |
d2182b69 | 301 | ath_dbg(common, CALIBRATE, |
226afe68 JP |
302 | "IQ Cal and Correction (offset 0x%04x) enabled (bit position 0x%08x). New Value 0x%08x\n", |
303 | (unsigned) (AR_PHY_RX_IQCAL_CORR_B0), | |
304 | AR_PHY_RX_IQCAL_CORR_IQCORR_ENABLE, | |
305 | REG_READ(ah, AR_PHY_RX_IQCAL_CORR_B0)); | |
590b7d2f LR |
306 | } |
307 | ||
308 | static const struct ath9k_percal_data iq_cal_single_sample = { | |
309 | IQ_MISMATCH_CAL, | |
310 | MIN_CAL_SAMPLES, | |
311 | PER_MAX_LOG_COUNT, | |
312 | ar9003_hw_iqcal_collect, | |
313 | ar9003_hw_iqcalibrate | |
314 | }; | |
315 | ||
795f5e2c LR |
316 | static void ar9003_hw_init_cal_settings(struct ath_hw *ah) |
317 | { | |
590b7d2f | 318 | ah->iq_caldata.calData = &iq_cal_single_sample; |
b686929c SM |
319 | |
320 | if (AR_SREV_9300_20_OR_LATER(ah)) { | |
321 | ah->enabled_cals |= TX_IQ_CAL; | |
03c2dc73 | 322 | if (AR_SREV_9485_OR_LATER(ah) && !AR_SREV_9340(ah)) |
b686929c SM |
323 | ah->enabled_cals |= TX_IQ_ON_AGC_CAL; |
324 | } | |
325 | ||
326 | ah->supp_cals = IQ_MISMATCH_CAL; | |
795f5e2c LR |
327 | } |
328 | ||
df23acaa LR |
329 | /* |
330 | * solve 4x4 linear equation used in loopback iq cal. | |
331 | */ | |
332 | static bool ar9003_hw_solve_iq_cal(struct ath_hw *ah, | |
333 | s32 sin_2phi_1, | |
334 | s32 cos_2phi_1, | |
335 | s32 sin_2phi_2, | |
336 | s32 cos_2phi_2, | |
337 | s32 mag_a0_d0, | |
338 | s32 phs_a0_d0, | |
339 | s32 mag_a1_d0, | |
340 | s32 phs_a1_d0, | |
341 | s32 solved_eq[]) | |
342 | { | |
343 | s32 f1 = cos_2phi_1 - cos_2phi_2, | |
344 | f3 = sin_2phi_1 - sin_2phi_2, | |
345 | f2; | |
346 | s32 mag_tx, phs_tx, mag_rx, phs_rx; | |
347 | const s32 result_shift = 1 << 15; | |
348 | struct ath_common *common = ath9k_hw_common(ah); | |
349 | ||
350 | f2 = (f1 * f1 + f3 * f3) / result_shift; | |
351 | ||
352 | if (!f2) { | |
d2182b69 | 353 | ath_dbg(common, CALIBRATE, "Divide by 0\n"); |
df23acaa LR |
354 | return false; |
355 | } | |
356 | ||
357 | /* mag mismatch, tx */ | |
358 | mag_tx = f1 * (mag_a0_d0 - mag_a1_d0) + f3 * (phs_a0_d0 - phs_a1_d0); | |
359 | /* phs mismatch, tx */ | |
360 | phs_tx = f3 * (-mag_a0_d0 + mag_a1_d0) + f1 * (phs_a0_d0 - phs_a1_d0); | |
361 | ||
362 | mag_tx = (mag_tx / f2); | |
363 | phs_tx = (phs_tx / f2); | |
364 | ||
365 | /* mag mismatch, rx */ | |
366 | mag_rx = mag_a0_d0 - (cos_2phi_1 * mag_tx + sin_2phi_1 * phs_tx) / | |
367 | result_shift; | |
368 | /* phs mismatch, rx */ | |
369 | phs_rx = phs_a0_d0 + (sin_2phi_1 * mag_tx - cos_2phi_1 * phs_tx) / | |
370 | result_shift; | |
371 | ||
372 | solved_eq[0] = mag_tx; | |
373 | solved_eq[1] = phs_tx; | |
374 | solved_eq[2] = mag_rx; | |
375 | solved_eq[3] = phs_rx; | |
376 | ||
377 | return true; | |
378 | } | |
379 | ||
380 | static s32 ar9003_hw_find_mag_approx(struct ath_hw *ah, s32 in_re, s32 in_im) | |
77d6d39a | 381 | { |
df23acaa LR |
382 | s32 abs_i = abs(in_re), |
383 | abs_q = abs(in_im), | |
384 | max_abs, min_abs; | |
385 | ||
386 | if (abs_i > abs_q) { | |
387 | max_abs = abs_i; | |
388 | min_abs = abs_q; | |
389 | } else { | |
390 | max_abs = abs_q; | |
391 | min_abs = abs_i; | |
392 | } | |
393 | ||
394 | return max_abs - (max_abs / 32) + (min_abs / 8) + (min_abs / 4); | |
395 | } | |
396 | ||
397 | #define DELPT 32 | |
398 | ||
399 | static bool ar9003_hw_calc_iq_corr(struct ath_hw *ah, | |
400 | s32 chain_idx, | |
401 | const s32 iq_res[], | |
402 | s32 iqc_coeff[]) | |
403 | { | |
404 | s32 i2_m_q2_a0_d0, i2_p_q2_a0_d0, iq_corr_a0_d0, | |
405 | i2_m_q2_a0_d1, i2_p_q2_a0_d1, iq_corr_a0_d1, | |
406 | i2_m_q2_a1_d0, i2_p_q2_a1_d0, iq_corr_a1_d0, | |
407 | i2_m_q2_a1_d1, i2_p_q2_a1_d1, iq_corr_a1_d1; | |
408 | s32 mag_a0_d0, mag_a1_d0, mag_a0_d1, mag_a1_d1, | |
409 | phs_a0_d0, phs_a1_d0, phs_a0_d1, phs_a1_d1, | |
410 | sin_2phi_1, cos_2phi_1, | |
411 | sin_2phi_2, cos_2phi_2; | |
412 | s32 mag_tx, phs_tx, mag_rx, phs_rx; | |
413 | s32 solved_eq[4], mag_corr_tx, phs_corr_tx, mag_corr_rx, phs_corr_rx, | |
414 | q_q_coff, q_i_coff; | |
415 | const s32 res_scale = 1 << 15; | |
416 | const s32 delpt_shift = 1 << 8; | |
417 | s32 mag1, mag2; | |
418 | struct ath_common *common = ath9k_hw_common(ah); | |
419 | ||
420 | i2_m_q2_a0_d0 = iq_res[0] & 0xfff; | |
421 | i2_p_q2_a0_d0 = (iq_res[0] >> 12) & 0xfff; | |
422 | iq_corr_a0_d0 = ((iq_res[0] >> 24) & 0xff) + ((iq_res[1] & 0xf) << 8); | |
423 | ||
424 | if (i2_m_q2_a0_d0 > 0x800) | |
425 | i2_m_q2_a0_d0 = -((0xfff - i2_m_q2_a0_d0) + 1); | |
426 | ||
427 | if (i2_p_q2_a0_d0 > 0x800) | |
428 | i2_p_q2_a0_d0 = -((0xfff - i2_p_q2_a0_d0) + 1); | |
429 | ||
430 | if (iq_corr_a0_d0 > 0x800) | |
431 | iq_corr_a0_d0 = -((0xfff - iq_corr_a0_d0) + 1); | |
432 | ||
433 | i2_m_q2_a0_d1 = (iq_res[1] >> 4) & 0xfff; | |
434 | i2_p_q2_a0_d1 = (iq_res[2] & 0xfff); | |
435 | iq_corr_a0_d1 = (iq_res[2] >> 12) & 0xfff; | |
436 | ||
437 | if (i2_m_q2_a0_d1 > 0x800) | |
438 | i2_m_q2_a0_d1 = -((0xfff - i2_m_q2_a0_d1) + 1); | |
439 | ||
440 | if (i2_p_q2_a0_d1 > 0x800) | |
441 | i2_p_q2_a0_d1 = -((0xfff - i2_p_q2_a0_d1) + 1); | |
442 | ||
443 | if (iq_corr_a0_d1 > 0x800) | |
444 | iq_corr_a0_d1 = -((0xfff - iq_corr_a0_d1) + 1); | |
445 | ||
446 | i2_m_q2_a1_d0 = ((iq_res[2] >> 24) & 0xff) + ((iq_res[3] & 0xf) << 8); | |
447 | i2_p_q2_a1_d0 = (iq_res[3] >> 4) & 0xfff; | |
448 | iq_corr_a1_d0 = iq_res[4] & 0xfff; | |
449 | ||
450 | if (i2_m_q2_a1_d0 > 0x800) | |
451 | i2_m_q2_a1_d0 = -((0xfff - i2_m_q2_a1_d0) + 1); | |
452 | ||
453 | if (i2_p_q2_a1_d0 > 0x800) | |
454 | i2_p_q2_a1_d0 = -((0xfff - i2_p_q2_a1_d0) + 1); | |
455 | ||
456 | if (iq_corr_a1_d0 > 0x800) | |
457 | iq_corr_a1_d0 = -((0xfff - iq_corr_a1_d0) + 1); | |
458 | ||
459 | i2_m_q2_a1_d1 = (iq_res[4] >> 12) & 0xfff; | |
460 | i2_p_q2_a1_d1 = ((iq_res[4] >> 24) & 0xff) + ((iq_res[5] & 0xf) << 8); | |
461 | iq_corr_a1_d1 = (iq_res[5] >> 4) & 0xfff; | |
462 | ||
463 | if (i2_m_q2_a1_d1 > 0x800) | |
464 | i2_m_q2_a1_d1 = -((0xfff - i2_m_q2_a1_d1) + 1); | |
465 | ||
466 | if (i2_p_q2_a1_d1 > 0x800) | |
467 | i2_p_q2_a1_d1 = -((0xfff - i2_p_q2_a1_d1) + 1); | |
468 | ||
469 | if (iq_corr_a1_d1 > 0x800) | |
470 | iq_corr_a1_d1 = -((0xfff - iq_corr_a1_d1) + 1); | |
471 | ||
472 | if ((i2_p_q2_a0_d0 == 0) || (i2_p_q2_a0_d1 == 0) || | |
473 | (i2_p_q2_a1_d0 == 0) || (i2_p_q2_a1_d1 == 0)) { | |
d2182b69 | 474 | ath_dbg(common, CALIBRATE, |
226afe68 JP |
475 | "Divide by 0:\n" |
476 | "a0_d0=%d\n" | |
477 | "a0_d1=%d\n" | |
478 | "a2_d0=%d\n" | |
479 | "a1_d1=%d\n", | |
480 | i2_p_q2_a0_d0, i2_p_q2_a0_d1, | |
481 | i2_p_q2_a1_d0, i2_p_q2_a1_d1); | |
df23acaa LR |
482 | return false; |
483 | } | |
484 | ||
485 | mag_a0_d0 = (i2_m_q2_a0_d0 * res_scale) / i2_p_q2_a0_d0; | |
486 | phs_a0_d0 = (iq_corr_a0_d0 * res_scale) / i2_p_q2_a0_d0; | |
487 | ||
488 | mag_a0_d1 = (i2_m_q2_a0_d1 * res_scale) / i2_p_q2_a0_d1; | |
489 | phs_a0_d1 = (iq_corr_a0_d1 * res_scale) / i2_p_q2_a0_d1; | |
490 | ||
491 | mag_a1_d0 = (i2_m_q2_a1_d0 * res_scale) / i2_p_q2_a1_d0; | |
492 | phs_a1_d0 = (iq_corr_a1_d0 * res_scale) / i2_p_q2_a1_d0; | |
493 | ||
494 | mag_a1_d1 = (i2_m_q2_a1_d1 * res_scale) / i2_p_q2_a1_d1; | |
495 | phs_a1_d1 = (iq_corr_a1_d1 * res_scale) / i2_p_q2_a1_d1; | |
496 | ||
497 | /* w/o analog phase shift */ | |
498 | sin_2phi_1 = (((mag_a0_d0 - mag_a0_d1) * delpt_shift) / DELPT); | |
499 | /* w/o analog phase shift */ | |
500 | cos_2phi_1 = (((phs_a0_d1 - phs_a0_d0) * delpt_shift) / DELPT); | |
501 | /* w/ analog phase shift */ | |
502 | sin_2phi_2 = (((mag_a1_d0 - mag_a1_d1) * delpt_shift) / DELPT); | |
503 | /* w/ analog phase shift */ | |
504 | cos_2phi_2 = (((phs_a1_d1 - phs_a1_d0) * delpt_shift) / DELPT); | |
505 | ||
506 | /* | |
507 | * force sin^2 + cos^2 = 1; | |
508 | * find magnitude by approximation | |
509 | */ | |
510 | mag1 = ar9003_hw_find_mag_approx(ah, cos_2phi_1, sin_2phi_1); | |
511 | mag2 = ar9003_hw_find_mag_approx(ah, cos_2phi_2, sin_2phi_2); | |
512 | ||
513 | if ((mag1 == 0) || (mag2 == 0)) { | |
d2182b69 | 514 | ath_dbg(common, CALIBRATE, "Divide by 0: mag1=%d, mag2=%d\n", |
226afe68 | 515 | mag1, mag2); |
df23acaa LR |
516 | return false; |
517 | } | |
518 | ||
519 | /* normalization sin and cos by mag */ | |
520 | sin_2phi_1 = (sin_2phi_1 * res_scale / mag1); | |
521 | cos_2phi_1 = (cos_2phi_1 * res_scale / mag1); | |
522 | sin_2phi_2 = (sin_2phi_2 * res_scale / mag2); | |
523 | cos_2phi_2 = (cos_2phi_2 * res_scale / mag2); | |
524 | ||
525 | /* calculate IQ mismatch */ | |
526 | if (!ar9003_hw_solve_iq_cal(ah, | |
527 | sin_2phi_1, cos_2phi_1, | |
528 | sin_2phi_2, cos_2phi_2, | |
529 | mag_a0_d0, phs_a0_d0, | |
530 | mag_a1_d0, | |
531 | phs_a1_d0, solved_eq)) { | |
d2182b69 JP |
532 | ath_dbg(common, CALIBRATE, |
533 | "Call to ar9003_hw_solve_iq_cal() failed\n"); | |
df23acaa LR |
534 | return false; |
535 | } | |
536 | ||
537 | mag_tx = solved_eq[0]; | |
538 | phs_tx = solved_eq[1]; | |
539 | mag_rx = solved_eq[2]; | |
540 | phs_rx = solved_eq[3]; | |
541 | ||
d2182b69 | 542 | ath_dbg(common, CALIBRATE, |
226afe68 JP |
543 | "chain %d: mag mismatch=%d phase mismatch=%d\n", |
544 | chain_idx, mag_tx/res_scale, phs_tx/res_scale); | |
df23acaa LR |
545 | |
546 | if (res_scale == mag_tx) { | |
d2182b69 | 547 | ath_dbg(common, CALIBRATE, |
226afe68 JP |
548 | "Divide by 0: mag_tx=%d, res_scale=%d\n", |
549 | mag_tx, res_scale); | |
df23acaa LR |
550 | return false; |
551 | } | |
552 | ||
553 | /* calculate and quantize Tx IQ correction factor */ | |
554 | mag_corr_tx = (mag_tx * res_scale) / (res_scale - mag_tx); | |
555 | phs_corr_tx = -phs_tx; | |
556 | ||
557 | q_q_coff = (mag_corr_tx * 128 / res_scale); | |
558 | q_i_coff = (phs_corr_tx * 256 / res_scale); | |
559 | ||
d2182b69 | 560 | ath_dbg(common, CALIBRATE, "tx chain %d: mag corr=%d phase corr=%d\n", |
226afe68 | 561 | chain_idx, q_q_coff, q_i_coff); |
df23acaa LR |
562 | |
563 | if (q_i_coff < -63) | |
564 | q_i_coff = -63; | |
565 | if (q_i_coff > 63) | |
566 | q_i_coff = 63; | |
567 | if (q_q_coff < -63) | |
568 | q_q_coff = -63; | |
569 | if (q_q_coff > 63) | |
570 | q_q_coff = 63; | |
571 | ||
572 | iqc_coeff[0] = (q_q_coff * 128) + q_i_coff; | |
573 | ||
d2182b69 | 574 | ath_dbg(common, CALIBRATE, "tx chain %d: iq corr coeff=%x\n", |
226afe68 | 575 | chain_idx, iqc_coeff[0]); |
df23acaa LR |
576 | |
577 | if (-mag_rx == res_scale) { | |
d2182b69 | 578 | ath_dbg(common, CALIBRATE, |
226afe68 JP |
579 | "Divide by 0: mag_rx=%d, res_scale=%d\n", |
580 | mag_rx, res_scale); | |
df23acaa LR |
581 | return false; |
582 | } | |
583 | ||
584 | /* calculate and quantize Rx IQ correction factors */ | |
585 | mag_corr_rx = (-mag_rx * res_scale) / (res_scale + mag_rx); | |
586 | phs_corr_rx = -phs_rx; | |
587 | ||
588 | q_q_coff = (mag_corr_rx * 128 / res_scale); | |
589 | q_i_coff = (phs_corr_rx * 256 / res_scale); | |
590 | ||
d2182b69 | 591 | ath_dbg(common, CALIBRATE, "rx chain %d: mag corr=%d phase corr=%d\n", |
226afe68 | 592 | chain_idx, q_q_coff, q_i_coff); |
df23acaa LR |
593 | |
594 | if (q_i_coff < -63) | |
595 | q_i_coff = -63; | |
596 | if (q_i_coff > 63) | |
597 | q_i_coff = 63; | |
598 | if (q_q_coff < -63) | |
599 | q_q_coff = -63; | |
600 | if (q_q_coff > 63) | |
601 | q_q_coff = 63; | |
602 | ||
603 | iqc_coeff[1] = (q_q_coff * 128) + q_i_coff; | |
604 | ||
d2182b69 | 605 | ath_dbg(common, CALIBRATE, "rx chain %d: iq corr coeff=%x\n", |
226afe68 | 606 | chain_idx, iqc_coeff[1]); |
df23acaa LR |
607 | |
608 | return true; | |
609 | } | |
610 | ||
3782c69d RM |
611 | static void ar9003_hw_detect_outlier(int *mp_coeff, int nmeasurement, |
612 | int max_delta) | |
858b7e36 | 613 | { |
3782c69d RM |
614 | int mp_max = -64, max_idx = 0; |
615 | int mp_min = 63, min_idx = 0; | |
e948b99d | 616 | int mp_avg = 0, i, outlier_idx = 0, mp_count = 0; |
3782c69d RM |
617 | |
618 | /* find min/max mismatch across all calibrated gains */ | |
619 | for (i = 0; i < nmeasurement; i++) { | |
3782c69d RM |
620 | if (mp_coeff[i] > mp_max) { |
621 | mp_max = mp_coeff[i]; | |
622 | max_idx = i; | |
623 | } else if (mp_coeff[i] < mp_min) { | |
624 | mp_min = mp_coeff[i]; | |
625 | min_idx = i; | |
626 | } | |
627 | } | |
858b7e36 | 628 | |
3782c69d RM |
629 | /* find average (exclude max abs value) */ |
630 | for (i = 0; i < nmeasurement; i++) { | |
631 | if ((abs(mp_coeff[i]) < abs(mp_max)) || | |
e948b99d | 632 | (abs(mp_coeff[i]) < abs(mp_min))) { |
3782c69d | 633 | mp_avg += mp_coeff[i]; |
e948b99d RM |
634 | mp_count++; |
635 | } | |
3782c69d | 636 | } |
e948b99d RM |
637 | |
638 | /* | |
639 | * finding mean magnitude/phase if possible, otherwise | |
640 | * just use the last value as the mean | |
641 | */ | |
642 | if (mp_count) | |
643 | mp_avg /= mp_count; | |
644 | else | |
645 | mp_avg = mp_coeff[nmeasurement - 1]; | |
858b7e36 | 646 | |
3782c69d RM |
647 | /* detect outlier */ |
648 | if (abs(mp_max - mp_min) > max_delta) { | |
649 | if (abs(mp_max - mp_avg) > abs(mp_min - mp_avg)) | |
650 | outlier_idx = max_idx; | |
651 | else | |
652 | outlier_idx = min_idx; | |
e9c10469 RM |
653 | |
654 | mp_coeff[outlier_idx] = mp_avg; | |
3782c69d | 655 | } |
858b7e36 VT |
656 | } |
657 | ||
658 | static void ar9003_hw_tx_iqcal_load_avg_2_passes(struct ath_hw *ah, | |
34013524 RM |
659 | struct coeff *coeff, |
660 | bool is_reusable) | |
858b7e36 | 661 | { |
858b7e36 | 662 | int i, im, nmeasurement; |
858b7e36 | 663 | u32 tx_corr_coeff[MAX_MEASUREMENT][AR9300_MAX_CHAINS]; |
5f0c04ea | 664 | struct ath9k_hw_cal_data *caldata = ah->caldata; |
858b7e36 VT |
665 | |
666 | memset(tx_corr_coeff, 0, sizeof(tx_corr_coeff)); | |
667 | for (i = 0; i < MAX_MEASUREMENT / 2; i++) { | |
668 | tx_corr_coeff[i * 2][0] = tx_corr_coeff[(i * 2) + 1][0] = | |
669 | AR_PHY_TX_IQCAL_CORR_COEFF_B0(i); | |
670 | if (!AR_SREV_9485(ah)) { | |
671 | tx_corr_coeff[i * 2][1] = | |
672 | tx_corr_coeff[(i * 2) + 1][1] = | |
673 | AR_PHY_TX_IQCAL_CORR_COEFF_B1(i); | |
674 | ||
675 | tx_corr_coeff[i * 2][2] = | |
676 | tx_corr_coeff[(i * 2) + 1][2] = | |
677 | AR_PHY_TX_IQCAL_CORR_COEFF_B2(i); | |
678 | } | |
679 | } | |
680 | ||
681 | /* Load the average of 2 passes */ | |
4fb7175b RM |
682 | for (i = 0; i < AR9300_MAX_CHAINS; i++) { |
683 | if (!(ah->txchainmask & (1 << i))) | |
684 | continue; | |
3782c69d RM |
685 | nmeasurement = REG_READ_FIELD(ah, |
686 | AR_PHY_TX_IQCAL_STATUS_B0, | |
687 | AR_PHY_CALIBRATED_GAINS_0); | |
858b7e36 VT |
688 | |
689 | if (nmeasurement > MAX_MEASUREMENT) | |
690 | nmeasurement = MAX_MEASUREMENT; | |
691 | ||
3782c69d RM |
692 | /* detect outlier only if nmeasurement > 1 */ |
693 | if (nmeasurement > 1) { | |
694 | /* Detect magnitude outlier */ | |
695 | ar9003_hw_detect_outlier(coeff->mag_coeff[i], | |
696 | nmeasurement, MAX_MAG_DELTA); | |
858b7e36 | 697 | |
3782c69d RM |
698 | /* Detect phase outlier */ |
699 | ar9003_hw_detect_outlier(coeff->phs_coeff[i], | |
700 | nmeasurement, MAX_PHS_DELTA); | |
701 | } | |
858b7e36 | 702 | |
3782c69d RM |
703 | for (im = 0; im < nmeasurement; im++) { |
704 | ||
705 | coeff->iqc_coeff[0] = (coeff->mag_coeff[i][im] & 0x7f) | | |
706 | ((coeff->phs_coeff[i][im] & 0x7f) << 7); | |
858b7e36 VT |
707 | |
708 | if ((im % 2) == 0) | |
709 | REG_RMW_FIELD(ah, tx_corr_coeff[im][i], | |
710 | AR_PHY_TX_IQCAL_CORR_COEFF_00_COEFF_TABLE, | |
711 | coeff->iqc_coeff[0]); | |
712 | else | |
713 | REG_RMW_FIELD(ah, tx_corr_coeff[im][i], | |
714 | AR_PHY_TX_IQCAL_CORR_COEFF_01_COEFF_TABLE, | |
715 | coeff->iqc_coeff[0]); | |
5f0c04ea RM |
716 | |
717 | if (caldata) | |
718 | caldata->tx_corr_coeff[im][i] = | |
719 | coeff->iqc_coeff[0]; | |
858b7e36 | 720 | } |
5f0c04ea RM |
721 | if (caldata) |
722 | caldata->num_measures[i] = nmeasurement; | |
858b7e36 VT |
723 | } |
724 | ||
725 | REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_3, | |
726 | AR_PHY_TX_IQCAL_CONTROL_3_IQCORR_EN, 0x1); | |
727 | REG_RMW_FIELD(ah, AR_PHY_RX_IQCAL_CORR_B0, | |
728 | AR_PHY_RX_IQCAL_CORR_B0_LOOPBACK_IQCORR_EN, 0x1); | |
34013524 | 729 | |
4b9b42bf SM |
730 | if (caldata) { |
731 | if (is_reusable) | |
732 | set_bit(TXIQCAL_DONE, &caldata->cal_flags); | |
733 | else | |
734 | clear_bit(TXIQCAL_DONE, &caldata->cal_flags); | |
735 | } | |
858b7e36 VT |
736 | |
737 | return; | |
858b7e36 VT |
738 | } |
739 | ||
3782c69d | 740 | static bool ar9003_hw_tx_iq_cal_run(struct ath_hw *ah) |
0b2084bc VT |
741 | { |
742 | struct ath_common *common = ath9k_hw_common(ah); | |
858b7e36 VT |
743 | u8 tx_gain_forced; |
744 | ||
858b7e36 VT |
745 | tx_gain_forced = REG_READ_FIELD(ah, AR_PHY_TX_FORCED_GAIN, |
746 | AR_PHY_TXGAIN_FORCE); | |
747 | if (tx_gain_forced) | |
748 | REG_RMW_FIELD(ah, AR_PHY_TX_FORCED_GAIN, | |
749 | AR_PHY_TXGAIN_FORCE, 0); | |
750 | ||
3782c69d RM |
751 | REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_START, |
752 | AR_PHY_TX_IQCAL_START_DO_CAL, 1); | |
753 | ||
754 | if (!ath9k_hw_wait(ah, AR_PHY_TX_IQCAL_START, | |
755 | AR_PHY_TX_IQCAL_START_DO_CAL, 0, | |
756 | AH_WAIT_TIMEOUT)) { | |
d2182b69 | 757 | ath_dbg(common, CALIBRATE, "Tx IQ Cal is not completed\n"); |
3782c69d RM |
758 | return false; |
759 | } | |
760 | return true; | |
858b7e36 VT |
761 | } |
762 | ||
34013524 | 763 | static void ar9003_hw_tx_iq_cal_post_proc(struct ath_hw *ah, bool is_reusable) |
858b7e36 VT |
764 | { |
765 | struct ath_common *common = ath9k_hw_common(ah); | |
766 | const u32 txiqcal_status[AR9300_MAX_CHAINS] = { | |
3782c69d | 767 | AR_PHY_TX_IQCAL_STATUS_B0, |
858b7e36 VT |
768 | AR_PHY_TX_IQCAL_STATUS_B1, |
769 | AR_PHY_TX_IQCAL_STATUS_B2, | |
770 | }; | |
771 | const u_int32_t chan_info_tab[] = { | |
772 | AR_PHY_CHAN_INFO_TAB_0, | |
773 | AR_PHY_CHAN_INFO_TAB_1, | |
774 | AR_PHY_CHAN_INFO_TAB_2, | |
775 | }; | |
776 | struct coeff coeff; | |
777 | s32 iq_res[6]; | |
3782c69d | 778 | int i, im, j; |
858b7e36 VT |
779 | int nmeasurement; |
780 | ||
781 | for (i = 0; i < AR9300_MAX_CHAINS; i++) { | |
4fb7175b RM |
782 | if (!(ah->txchainmask & (1 << i))) |
783 | continue; | |
858b7e36 | 784 | |
3782c69d RM |
785 | nmeasurement = REG_READ_FIELD(ah, |
786 | AR_PHY_TX_IQCAL_STATUS_B0, | |
787 | AR_PHY_CALIBRATED_GAINS_0); | |
788 | if (nmeasurement > MAX_MEASUREMENT) | |
789 | nmeasurement = MAX_MEASUREMENT; | |
858b7e36 | 790 | |
3782c69d | 791 | for (im = 0; im < nmeasurement; im++) { |
d2182b69 JP |
792 | ath_dbg(common, CALIBRATE, |
793 | "Doing Tx IQ Cal for chain %d\n", i); | |
858b7e36 | 794 | |
3782c69d RM |
795 | if (REG_READ(ah, txiqcal_status[i]) & |
796 | AR_PHY_TX_IQCAL_STATUS_FAILED) { | |
d2182b69 JP |
797 | ath_dbg(common, CALIBRATE, |
798 | "Tx IQ Cal failed for chain %d\n", i); | |
3782c69d RM |
799 | goto tx_iqcal_fail; |
800 | } | |
858b7e36 | 801 | |
3782c69d RM |
802 | for (j = 0; j < 3; j++) { |
803 | u32 idx = 2 * j, offset = 4 * (3 * im + j); | |
858b7e36 | 804 | |
3782c69d | 805 | REG_RMW_FIELD(ah, |
858b7e36 VT |
806 | AR_PHY_CHAN_INFO_MEMORY, |
807 | AR_PHY_CHAN_INFO_TAB_S2_READ, | |
808 | 0); | |
809 | ||
3782c69d RM |
810 | /* 32 bits */ |
811 | iq_res[idx] = REG_READ(ah, | |
812 | chan_info_tab[i] + | |
813 | offset); | |
858b7e36 | 814 | |
3782c69d | 815 | REG_RMW_FIELD(ah, |
858b7e36 VT |
816 | AR_PHY_CHAN_INFO_MEMORY, |
817 | AR_PHY_CHAN_INFO_TAB_S2_READ, | |
818 | 1); | |
819 | ||
3782c69d RM |
820 | /* 16 bits */ |
821 | iq_res[idx + 1] = 0xffff & REG_READ(ah, | |
822 | chan_info_tab[i] + offset); | |
858b7e36 | 823 | |
d2182b69 JP |
824 | ath_dbg(common, CALIBRATE, |
825 | "IQ_RES[%d]=0x%x IQ_RES[%d]=0x%x\n", | |
3782c69d RM |
826 | idx, iq_res[idx], idx + 1, |
827 | iq_res[idx + 1]); | |
828 | } | |
858b7e36 | 829 | |
3782c69d RM |
830 | if (!ar9003_hw_calc_iq_corr(ah, i, iq_res, |
831 | coeff.iqc_coeff)) { | |
d2182b69 JP |
832 | ath_dbg(common, CALIBRATE, |
833 | "Failed in calculation of IQ correction\n"); | |
3782c69d RM |
834 | goto tx_iqcal_fail; |
835 | } | |
858b7e36 | 836 | |
3782c69d RM |
837 | coeff.mag_coeff[i][im] = coeff.iqc_coeff[0] & 0x7f; |
838 | coeff.phs_coeff[i][im] = | |
839 | (coeff.iqc_coeff[0] >> 7) & 0x7f; | |
858b7e36 | 840 | |
3782c69d RM |
841 | if (coeff.mag_coeff[i][im] > 63) |
842 | coeff.mag_coeff[i][im] -= 128; | |
843 | if (coeff.phs_coeff[i][im] > 63) | |
844 | coeff.phs_coeff[i][im] -= 128; | |
858b7e36 VT |
845 | } |
846 | } | |
4fb7175b | 847 | ar9003_hw_tx_iqcal_load_avg_2_passes(ah, &coeff, is_reusable); |
858b7e36 VT |
848 | |
849 | return; | |
850 | ||
851 | tx_iqcal_fail: | |
d2182b69 | 852 | ath_dbg(common, CALIBRATE, "Tx IQ Cal failed\n"); |
858b7e36 VT |
853 | return; |
854 | } | |
5f0c04ea RM |
855 | |
856 | static void ar9003_hw_tx_iq_cal_reload(struct ath_hw *ah) | |
857 | { | |
858 | struct ath9k_hw_cal_data *caldata = ah->caldata; | |
859 | u32 tx_corr_coeff[MAX_MEASUREMENT][AR9300_MAX_CHAINS]; | |
860 | int i, im; | |
861 | ||
862 | memset(tx_corr_coeff, 0, sizeof(tx_corr_coeff)); | |
863 | for (i = 0; i < MAX_MEASUREMENT / 2; i++) { | |
864 | tx_corr_coeff[i * 2][0] = tx_corr_coeff[(i * 2) + 1][0] = | |
865 | AR_PHY_TX_IQCAL_CORR_COEFF_B0(i); | |
866 | if (!AR_SREV_9485(ah)) { | |
867 | tx_corr_coeff[i * 2][1] = | |
868 | tx_corr_coeff[(i * 2) + 1][1] = | |
869 | AR_PHY_TX_IQCAL_CORR_COEFF_B1(i); | |
870 | ||
871 | tx_corr_coeff[i * 2][2] = | |
872 | tx_corr_coeff[(i * 2) + 1][2] = | |
873 | AR_PHY_TX_IQCAL_CORR_COEFF_B2(i); | |
874 | } | |
875 | } | |
876 | ||
877 | for (i = 0; i < AR9300_MAX_CHAINS; i++) { | |
878 | if (!(ah->txchainmask & (1 << i))) | |
879 | continue; | |
880 | ||
881 | for (im = 0; im < caldata->num_measures[i]; im++) { | |
882 | if ((im % 2) == 0) | |
883 | REG_RMW_FIELD(ah, tx_corr_coeff[im][i], | |
884 | AR_PHY_TX_IQCAL_CORR_COEFF_00_COEFF_TABLE, | |
885 | caldata->tx_corr_coeff[im][i]); | |
886 | else | |
887 | REG_RMW_FIELD(ah, tx_corr_coeff[im][i], | |
888 | AR_PHY_TX_IQCAL_CORR_COEFF_01_COEFF_TABLE, | |
889 | caldata->tx_corr_coeff[im][i]); | |
890 | } | |
891 | } | |
892 | ||
893 | REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_3, | |
894 | AR_PHY_TX_IQCAL_CONTROL_3_IQCORR_EN, 0x1); | |
895 | REG_RMW_FIELD(ah, AR_PHY_RX_IQCAL_CORR_B0, | |
896 | AR_PHY_RX_IQCAL_CORR_B0_LOOPBACK_IQCORR_EN, 0x1); | |
897 | } | |
898 | ||
0b6eb366 RM |
899 | static void ar9003_hw_manual_peak_cal(struct ath_hw *ah, u8 chain, bool is_2g) |
900 | { | |
901 | int offset[8], total = 0, test; | |
902 | int agc_out, i; | |
903 | ||
904 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_GAINSTAGES(chain), | |
905 | AR_PHY_65NM_RXRF_GAINSTAGES_RX_OVERRIDE, 0x1); | |
906 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_GAINSTAGES(chain), | |
907 | AR_PHY_65NM_RXRF_GAINSTAGES_LNAON_CALDC, 0x0); | |
908 | if (is_2g) | |
909 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_GAINSTAGES(chain), | |
910 | AR_PHY_65NM_RXRF_GAINSTAGES_LNA2G_GAIN_OVR, 0x0); | |
911 | else | |
912 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_GAINSTAGES(chain), | |
913 | AR_PHY_65NM_RXRF_GAINSTAGES_LNA5G_GAIN_OVR, 0x0); | |
914 | ||
915 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXTX2(chain), | |
916 | AR_PHY_65NM_RXTX2_RXON_OVR, 0x1); | |
917 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXTX2(chain), | |
918 | AR_PHY_65NM_RXTX2_RXON, 0x0); | |
919 | ||
920 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), | |
921 | AR_PHY_65NM_RXRF_AGC_AGC_OVERRIDE, 0x1); | |
922 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), | |
923 | AR_PHY_65NM_RXRF_AGC_AGC_ON_OVR, 0x1); | |
924 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), | |
925 | AR_PHY_65NM_RXRF_AGC_AGC_CAL_OVR, 0x1); | |
926 | if (is_2g) | |
927 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), | |
928 | AR_PHY_65NM_RXRF_AGC_AGC2G_DBDAC_OVR, 0x0); | |
929 | else | |
930 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), | |
931 | AR_PHY_65NM_RXRF_AGC_AGC5G_DBDAC_OVR, 0x0); | |
932 | ||
933 | for (i = 6; i > 0; i--) { | |
934 | offset[i] = BIT(i - 1); | |
935 | test = total + offset[i]; | |
936 | ||
937 | if (is_2g) | |
938 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), | |
939 | AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR, | |
940 | test); | |
941 | else | |
942 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), | |
943 | AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR, | |
944 | test); | |
945 | udelay(100); | |
946 | agc_out = REG_READ_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), | |
947 | AR_PHY_65NM_RXRF_AGC_AGC_OUT); | |
948 | offset[i] = (agc_out) ? 0 : 1; | |
949 | total += (offset[i] << (i - 1)); | |
950 | } | |
951 | ||
952 | if (is_2g) | |
953 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), | |
954 | AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR, total); | |
955 | else | |
956 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), | |
957 | AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR, total); | |
958 | ||
959 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_GAINSTAGES(chain), | |
960 | AR_PHY_65NM_RXRF_GAINSTAGES_RX_OVERRIDE, 0); | |
961 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXTX2(chain), | |
962 | AR_PHY_65NM_RXTX2_RXON_OVR, 0); | |
963 | REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), | |
964 | AR_PHY_65NM_RXRF_AGC_AGC_CAL_OVR, 0); | |
965 | } | |
966 | ||
96da6fdd | 967 | static void ar9003_hw_do_manual_peak_cal(struct ath_hw *ah, |
3001f0d0 SM |
968 | struct ath9k_channel *chan, |
969 | bool run_rtt_cal) | |
96da6fdd | 970 | { |
3001f0d0 | 971 | struct ath9k_hw_cal_data *caldata = ah->caldata; |
96da6fdd SM |
972 | int i; |
973 | ||
e99c60b5 | 974 | if (!AR_SREV_9462(ah) && !AR_SREV_9565(ah) && !AR_SREV_9485(ah)) |
96da6fdd SM |
975 | return; |
976 | ||
3001f0d0 SM |
977 | if ((ah->caps.hw_caps & ATH9K_HW_CAP_RTT) && !run_rtt_cal) |
978 | return; | |
979 | ||
96da6fdd SM |
980 | for (i = 0; i < AR9300_MAX_CHAINS; i++) { |
981 | if (!(ah->rxchainmask & (1 << i))) | |
982 | continue; | |
983 | ar9003_hw_manual_peak_cal(ah, i, IS_CHAN_2GHZ(chan)); | |
984 | } | |
3001f0d0 SM |
985 | |
986 | if (caldata) | |
987 | set_bit(SW_PKDET_DONE, &caldata->cal_flags); | |
988 | ||
989 | if ((ah->caps.hw_caps & ATH9K_HW_CAP_RTT) && caldata) { | |
990 | if (IS_CHAN_2GHZ(chan)){ | |
991 | caldata->caldac[0] = REG_READ_FIELD(ah, | |
992 | AR_PHY_65NM_RXRF_AGC(0), | |
993 | AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR); | |
994 | caldata->caldac[1] = REG_READ_FIELD(ah, | |
995 | AR_PHY_65NM_RXRF_AGC(1), | |
996 | AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR); | |
997 | } else { | |
998 | caldata->caldac[0] = REG_READ_FIELD(ah, | |
999 | AR_PHY_65NM_RXRF_AGC(0), | |
1000 | AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR); | |
1001 | caldata->caldac[1] = REG_READ_FIELD(ah, | |
1002 | AR_PHY_65NM_RXRF_AGC(1), | |
1003 | AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR); | |
1004 | } | |
1005 | } | |
96da6fdd SM |
1006 | } |
1007 | ||
1008 | static void ar9003_hw_cl_cal_post_proc(struct ath_hw *ah, bool is_reusable) | |
1009 | { | |
1010 | u32 cl_idx[AR9300_MAX_CHAINS] = { AR_PHY_CL_TAB_0, | |
1011 | AR_PHY_CL_TAB_1, | |
1012 | AR_PHY_CL_TAB_2 }; | |
1013 | struct ath9k_hw_cal_data *caldata = ah->caldata; | |
1014 | bool txclcal_done = false; | |
1015 | int i, j; | |
1016 | ||
1017 | if (!caldata || !(ah->enabled_cals & TX_CL_CAL)) | |
1018 | return; | |
1019 | ||
1020 | txclcal_done = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) & | |
1021 | AR_PHY_AGC_CONTROL_CLC_SUCCESS); | |
1022 | ||
4b9b42bf | 1023 | if (test_bit(TXCLCAL_DONE, &caldata->cal_flags)) { |
96da6fdd SM |
1024 | for (i = 0; i < AR9300_MAX_CHAINS; i++) { |
1025 | if (!(ah->txchainmask & (1 << i))) | |
1026 | continue; | |
1027 | for (j = 0; j < MAX_CL_TAB_ENTRY; j++) | |
1028 | REG_WRITE(ah, CL_TAB_ENTRY(cl_idx[i]), | |
1029 | caldata->tx_clcal[i][j]); | |
1030 | } | |
1031 | } else if (is_reusable && txclcal_done) { | |
1032 | for (i = 0; i < AR9300_MAX_CHAINS; i++) { | |
1033 | if (!(ah->txchainmask & (1 << i))) | |
1034 | continue; | |
1035 | for (j = 0; j < MAX_CL_TAB_ENTRY; j++) | |
1036 | caldata->tx_clcal[i][j] = | |
1037 | REG_READ(ah, CL_TAB_ENTRY(cl_idx[i])); | |
1038 | } | |
4b9b42bf | 1039 | set_bit(TXCLCAL_DONE, &caldata->cal_flags); |
96da6fdd SM |
1040 | } |
1041 | } | |
1042 | ||
3b06c1d7 SM |
1043 | static bool ar9003_hw_init_cal_pcoem(struct ath_hw *ah, |
1044 | struct ath9k_channel *chan) | |
1045 | { | |
1046 | struct ath_common *common = ath9k_hw_common(ah); | |
1047 | struct ath9k_hw_cal_data *caldata = ah->caldata; | |
1048 | bool txiqcal_done = false; | |
1049 | bool is_reusable = true, status = true; | |
1050 | bool run_rtt_cal = false, run_agc_cal, sep_iq_cal = false; | |
1051 | bool rtt = !!(ah->caps.hw_caps & ATH9K_HW_CAP_RTT); | |
1052 | u32 rx_delay = 0; | |
1053 | u32 agc_ctrl = 0, agc_supp_cals = AR_PHY_AGC_CONTROL_OFFSET_CAL | | |
1054 | AR_PHY_AGC_CONTROL_FLTR_CAL | | |
1055 | AR_PHY_AGC_CONTROL_PKDET_CAL; | |
1056 | ||
1057 | /* Use chip chainmask only for calibration */ | |
1058 | ar9003_hw_set_chain_masks(ah, ah->caps.rx_chainmask, ah->caps.tx_chainmask); | |
1059 | ||
1060 | if (rtt) { | |
1061 | if (!ar9003_hw_rtt_restore(ah, chan)) | |
1062 | run_rtt_cal = true; | |
1063 | ||
1064 | if (run_rtt_cal) | |
1065 | ath_dbg(common, CALIBRATE, "RTT calibration to be done\n"); | |
1066 | } | |
1067 | ||
1068 | run_agc_cal = run_rtt_cal; | |
1069 | ||
1070 | if (run_rtt_cal) { | |
1071 | ar9003_hw_rtt_enable(ah); | |
1072 | ar9003_hw_rtt_set_mask(ah, 0x00); | |
1073 | ar9003_hw_rtt_clear_hist(ah); | |
1074 | } | |
1075 | ||
1076 | if (rtt) { | |
1077 | if (!run_rtt_cal) { | |
1078 | agc_ctrl = REG_READ(ah, AR_PHY_AGC_CONTROL); | |
1079 | agc_supp_cals &= agc_ctrl; | |
1080 | agc_ctrl &= ~(AR_PHY_AGC_CONTROL_OFFSET_CAL | | |
1081 | AR_PHY_AGC_CONTROL_FLTR_CAL | | |
1082 | AR_PHY_AGC_CONTROL_PKDET_CAL); | |
1083 | REG_WRITE(ah, AR_PHY_AGC_CONTROL, agc_ctrl); | |
1084 | } else { | |
1085 | if (ah->ah_flags & AH_FASTCC) | |
1086 | run_agc_cal = true; | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | if (ah->enabled_cals & TX_CL_CAL) { | |
1091 | if (caldata && test_bit(TXCLCAL_DONE, &caldata->cal_flags)) | |
1092 | REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL, | |
1093 | AR_PHY_CL_CAL_ENABLE); | |
1094 | else { | |
1095 | REG_SET_BIT(ah, AR_PHY_CL_CAL_CTL, | |
1096 | AR_PHY_CL_CAL_ENABLE); | |
1097 | run_agc_cal = true; | |
1098 | } | |
1099 | } | |
1100 | ||
1101 | if ((IS_CHAN_HALF_RATE(chan) || IS_CHAN_QUARTER_RATE(chan)) || | |
1102 | !(ah->enabled_cals & TX_IQ_CAL)) | |
1103 | goto skip_tx_iqcal; | |
1104 | ||
1105 | /* Do Tx IQ Calibration */ | |
1106 | REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_1, | |
1107 | AR_PHY_TX_IQCAL_CONTROL_1_IQCORR_I_Q_COFF_DELPT, | |
1108 | DELPT); | |
1109 | ||
1110 | /* | |
1111 | * For AR9485 or later chips, TxIQ cal runs as part of | |
1112 | * AGC calibration | |
1113 | */ | |
1114 | if (ah->enabled_cals & TX_IQ_ON_AGC_CAL) { | |
1115 | if (caldata && !test_bit(TXIQCAL_DONE, &caldata->cal_flags)) | |
1116 | REG_SET_BIT(ah, AR_PHY_TX_IQCAL_CONTROL_0, | |
1117 | AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL); | |
1118 | else | |
1119 | REG_CLR_BIT(ah, AR_PHY_TX_IQCAL_CONTROL_0, | |
1120 | AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL); | |
1121 | txiqcal_done = run_agc_cal = true; | |
1122 | } else if (caldata && !test_bit(TXIQCAL_DONE, &caldata->cal_flags)) { | |
1123 | run_agc_cal = true; | |
1124 | sep_iq_cal = true; | |
1125 | } | |
1126 | ||
1127 | skip_tx_iqcal: | |
1128 | if (ath9k_hw_mci_is_enabled(ah) && IS_CHAN_2GHZ(chan) && run_agc_cal) | |
1129 | ar9003_mci_init_cal_req(ah, &is_reusable); | |
1130 | ||
1131 | if (sep_iq_cal) { | |
1132 | txiqcal_done = ar9003_hw_tx_iq_cal_run(ah); | |
1133 | REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS); | |
1134 | udelay(5); | |
1135 | REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); | |
1136 | } | |
1137 | ||
1138 | if (REG_READ(ah, AR_PHY_CL_CAL_CTL) & AR_PHY_CL_CAL_ENABLE) { | |
1139 | rx_delay = REG_READ(ah, AR_PHY_RX_DELAY); | |
1140 | /* Disable BB_active */ | |
1141 | REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS); | |
1142 | udelay(5); | |
1143 | REG_WRITE(ah, AR_PHY_RX_DELAY, AR_PHY_RX_DELAY_DELAY); | |
1144 | REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); | |
1145 | } | |
1146 | ||
1147 | if (run_agc_cal || !(ah->ah_flags & AH_FASTCC)) { | |
1148 | /* Calibrate the AGC */ | |
1149 | REG_WRITE(ah, AR_PHY_AGC_CONTROL, | |
1150 | REG_READ(ah, AR_PHY_AGC_CONTROL) | | |
1151 | AR_PHY_AGC_CONTROL_CAL); | |
1152 | ||
1153 | /* Poll for offset calibration complete */ | |
1154 | status = ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL, | |
1155 | AR_PHY_AGC_CONTROL_CAL, | |
1156 | 0, AH_WAIT_TIMEOUT); | |
1157 | ||
1158 | ar9003_hw_do_manual_peak_cal(ah, chan, run_rtt_cal); | |
1159 | } | |
1160 | ||
1161 | if (REG_READ(ah, AR_PHY_CL_CAL_CTL) & AR_PHY_CL_CAL_ENABLE) { | |
1162 | REG_WRITE(ah, AR_PHY_RX_DELAY, rx_delay); | |
1163 | udelay(5); | |
1164 | } | |
1165 | ||
1166 | if (ath9k_hw_mci_is_enabled(ah) && IS_CHAN_2GHZ(chan) && run_agc_cal) | |
1167 | ar9003_mci_init_cal_done(ah); | |
1168 | ||
1169 | if (rtt && !run_rtt_cal) { | |
1170 | agc_ctrl |= agc_supp_cals; | |
1171 | REG_WRITE(ah, AR_PHY_AGC_CONTROL, agc_ctrl); | |
1172 | } | |
1173 | ||
1174 | if (!status) { | |
1175 | if (run_rtt_cal) | |
1176 | ar9003_hw_rtt_disable(ah); | |
1177 | ||
1178 | ath_dbg(common, CALIBRATE, | |
1179 | "offset calibration failed to complete in %d ms; noisy environment?\n", | |
1180 | AH_WAIT_TIMEOUT / 1000); | |
1181 | return false; | |
1182 | } | |
1183 | ||
1184 | if (txiqcal_done) | |
1185 | ar9003_hw_tx_iq_cal_post_proc(ah, is_reusable); | |
1186 | else if (caldata && test_bit(TXIQCAL_DONE, &caldata->cal_flags)) | |
1187 | ar9003_hw_tx_iq_cal_reload(ah); | |
1188 | ||
1189 | ar9003_hw_cl_cal_post_proc(ah, is_reusable); | |
1190 | ||
1191 | if (run_rtt_cal && caldata) { | |
1192 | if (is_reusable) { | |
1193 | if (!ath9k_hw_rfbus_req(ah)) { | |
1194 | ath_err(ath9k_hw_common(ah), | |
1195 | "Could not stop baseband\n"); | |
1196 | } else { | |
1197 | ar9003_hw_rtt_fill_hist(ah); | |
1198 | ||
1199 | if (test_bit(SW_PKDET_DONE, &caldata->cal_flags)) | |
1200 | ar9003_hw_rtt_load_hist(ah); | |
1201 | } | |
1202 | ||
1203 | ath9k_hw_rfbus_done(ah); | |
1204 | } | |
1205 | ||
1206 | ar9003_hw_rtt_disable(ah); | |
1207 | } | |
1208 | ||
1209 | /* Revert chainmask to runtime parameters */ | |
1210 | ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask); | |
1211 | ||
1212 | /* Initialize list pointers */ | |
1213 | ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL; | |
1214 | ||
1215 | INIT_CAL(&ah->iq_caldata); | |
1216 | INSERT_CAL(ah, &ah->iq_caldata); | |
1217 | ath_dbg(common, CALIBRATE, "enabling IQ Calibration\n"); | |
1218 | ||
1219 | /* Initialize current pointer to first element in list */ | |
1220 | ah->cal_list_curr = ah->cal_list; | |
1221 | ||
1222 | if (ah->cal_list_curr) | |
1223 | ath9k_hw_reset_calibration(ah, ah->cal_list_curr); | |
1224 | ||
1225 | if (caldata) | |
1226 | caldata->CalValid = 0; | |
1227 | ||
1228 | return true; | |
1229 | } | |
1230 | ||
1231 | static bool ar9003_hw_init_cal_soc(struct ath_hw *ah, | |
1232 | struct ath9k_channel *chan) | |
df23acaa LR |
1233 | { |
1234 | struct ath_common *common = ath9k_hw_common(ah); | |
5f0c04ea | 1235 | struct ath9k_hw_cal_data *caldata = ah->caldata; |
96da6fdd | 1236 | bool txiqcal_done = false; |
324c74ad | 1237 | bool is_reusable = true, status = true; |
a3640781 | 1238 | bool run_agc_cal = false, sep_iq_cal = false; |
77a5a664 | 1239 | |
74632d11 | 1240 | /* Use chip chainmask only for calibration */ |
4a8f1995 FF |
1241 | ar9003_hw_set_chain_masks(ah, ah->caps.rx_chainmask, ah->caps.tx_chainmask); |
1242 | ||
8ad74c4d | 1243 | if (ah->enabled_cals & TX_CL_CAL) { |
34d9b689 SM |
1244 | REG_SET_BIT(ah, AR_PHY_CL_CAL_CTL, AR_PHY_CL_CAL_ENABLE); |
1245 | run_agc_cal = true; | |
77a5a664 | 1246 | } |
df23acaa | 1247 | |
c20a2c59 | 1248 | if (IS_CHAN_HALF_RATE(chan) || IS_CHAN_QUARTER_RATE(chan)) |
8ad74c4d RM |
1249 | goto skip_tx_iqcal; |
1250 | ||
c5395b67 | 1251 | /* Do Tx IQ Calibration */ |
3782c69d RM |
1252 | REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_1, |
1253 | AR_PHY_TX_IQCAL_CONTROL_1_IQCORR_I_Q_COFF_DELPT, | |
1254 | DELPT); | |
858b7e36 | 1255 | |
3782c69d RM |
1256 | /* |
1257 | * For AR9485 or later chips, TxIQ cal runs as part of | |
1258 | * AGC calibration | |
1259 | */ | |
8ad74c4d | 1260 | if (ah->enabled_cals & TX_IQ_ON_AGC_CAL) { |
4b9b42bf | 1261 | if (caldata && !test_bit(TXIQCAL_DONE, &caldata->cal_flags)) |
5f0c04ea RM |
1262 | REG_SET_BIT(ah, AR_PHY_TX_IQCAL_CONTROL_0, |
1263 | AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL); | |
1264 | else | |
1265 | REG_CLR_BIT(ah, AR_PHY_TX_IQCAL_CONTROL_0, | |
1266 | AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL); | |
324c74ad | 1267 | txiqcal_done = run_agc_cal = true; |
4b9b42bf | 1268 | } else if (caldata && !test_bit(TXIQCAL_DONE, &caldata->cal_flags)) { |
324c74ad | 1269 | run_agc_cal = true; |
dfcca60b SM |
1270 | sep_iq_cal = true; |
1271 | } | |
324c74ad | 1272 | |
dfcca60b | 1273 | skip_tx_iqcal: |
dfcca60b SM |
1274 | if (sep_iq_cal) { |
1275 | txiqcal_done = ar9003_hw_tx_iq_cal_run(ah); | |
1276 | REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS); | |
1277 | udelay(5); | |
1278 | REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); | |
1279 | } | |
c5395b67 | 1280 | |
a126ff51 | 1281 | if (run_agc_cal || !(ah->ah_flags & AH_FASTCC)) { |
324c74ad RM |
1282 | /* Calibrate the AGC */ |
1283 | REG_WRITE(ah, AR_PHY_AGC_CONTROL, | |
1284 | REG_READ(ah, AR_PHY_AGC_CONTROL) | | |
1285 | AR_PHY_AGC_CONTROL_CAL); | |
1286 | ||
1287 | /* Poll for offset calibration complete */ | |
1288 | status = ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL, | |
1289 | AR_PHY_AGC_CONTROL_CAL, | |
1290 | 0, AH_WAIT_TIMEOUT); | |
1291 | } | |
3ebfcdc4 | 1292 | |
324c74ad | 1293 | if (!status) { |
d2182b69 | 1294 | ath_dbg(common, CALIBRATE, |
05005c5f RS |
1295 | "offset calibration failed to complete in %d ms; noisy environment?\n", |
1296 | AH_WAIT_TIMEOUT / 1000); | |
df23acaa LR |
1297 | return false; |
1298 | } | |
1299 | ||
3782c69d | 1300 | if (txiqcal_done) |
34013524 | 1301 | ar9003_hw_tx_iq_cal_post_proc(ah, is_reusable); |
4b9b42bf | 1302 | else if (caldata && test_bit(TXIQCAL_DONE, &caldata->cal_flags)) |
5f0c04ea | 1303 | ar9003_hw_tx_iq_cal_reload(ah); |
858b7e36 | 1304 | |
74632d11 FF |
1305 | /* Revert chainmask to runtime parameters */ |
1306 | ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask); | |
1307 | ||
df23acaa LR |
1308 | /* Initialize list pointers */ |
1309 | ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL; | |
1310 | ||
b686929c SM |
1311 | INIT_CAL(&ah->iq_caldata); |
1312 | INSERT_CAL(ah, &ah->iq_caldata); | |
1313 | ath_dbg(common, CALIBRATE, "enabling IQ Calibration\n"); | |
df23acaa | 1314 | |
df23acaa LR |
1315 | /* Initialize current pointer to first element in list */ |
1316 | ah->cal_list_curr = ah->cal_list; | |
1317 | ||
1318 | if (ah->cal_list_curr) | |
1319 | ath9k_hw_reset_calibration(ah, ah->cal_list_curr); | |
1320 | ||
5f0c04ea RM |
1321 | if (caldata) |
1322 | caldata->CalValid = 0; | |
df23acaa LR |
1323 | |
1324 | return true; | |
77d6d39a LR |
1325 | } |
1326 | ||
795f5e2c LR |
1327 | void ar9003_hw_attach_calib_ops(struct ath_hw *ah) |
1328 | { | |
1329 | struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah); | |
1330 | struct ath_hw_ops *ops = ath9k_hw_ops(ah); | |
1331 | ||
3b06c1d7 SM |
1332 | if (AR_SREV_9485(ah) || AR_SREV_9462(ah) || AR_SREV_9565(ah)) |
1333 | priv_ops->init_cal = ar9003_hw_init_cal_pcoem; | |
1334 | else | |
1335 | priv_ops->init_cal = ar9003_hw_init_cal_soc; | |
1336 | ||
795f5e2c | 1337 | priv_ops->init_cal_settings = ar9003_hw_init_cal_settings; |
795f5e2c | 1338 | priv_ops->setup_calibration = ar9003_hw_setup_calibration; |
795f5e2c LR |
1339 | |
1340 | ops->calibrate = ar9003_hw_calibrate; | |
1341 | } |