1717f6bedSFelix Fietkau /*
25b68138eSSujith Manoharan * Copyright (c) 2010-2011 Atheros Communications Inc.
3717f6bedSFelix Fietkau *
4717f6bedSFelix Fietkau * Permission to use, copy, modify, and/or distribute this software for any
5717f6bedSFelix Fietkau * purpose with or without fee is hereby granted, provided that the above
6717f6bedSFelix Fietkau * copyright notice and this permission notice appear in all copies.
7717f6bedSFelix Fietkau *
8717f6bedSFelix Fietkau * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9717f6bedSFelix Fietkau * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10717f6bedSFelix Fietkau * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11717f6bedSFelix Fietkau * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12717f6bedSFelix Fietkau * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13717f6bedSFelix Fietkau * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14717f6bedSFelix Fietkau * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15717f6bedSFelix Fietkau */
16717f6bedSFelix Fietkau
17ee40fa06SPaul Gortmaker #include <linux/export.h>
18717f6bedSFelix Fietkau #include "hw.h"
19717f6bedSFelix Fietkau #include "ar9003_phy.h"
20717f6bedSFelix Fietkau
ar9003_paprd_enable(struct ath_hw * ah,bool val)21717f6bedSFelix Fietkau void ar9003_paprd_enable(struct ath_hw *ah, bool val)
22717f6bedSFelix Fietkau {
2345ef6a0bSVasanthakumar Thiagarajan struct ath9k_channel *chan = ah->curchan;
24673424ceSWenli Looi bool is2ghz = IS_CHAN_2GHZ(chan);
25331c5ea2SMohammed Shafi Shajakhan
26331c5ea2SMohammed Shafi Shajakhan /*
27331c5ea2SMohammed Shafi Shajakhan * 3 bits for modalHeader5G.papdRateMaskHt20
28331c5ea2SMohammed Shafi Shajakhan * is used for sub-band disabling of PAPRD.
29331c5ea2SMohammed Shafi Shajakhan * 5G band is divided into 3 sub-bands -- upper,
30331c5ea2SMohammed Shafi Shajakhan * middle, lower.
31331c5ea2SMohammed Shafi Shajakhan * if bit 30 of modalHeader5G.papdRateMaskHt20 is set
32331c5ea2SMohammed Shafi Shajakhan * -- disable PAPRD for upper band 5GHz
33331c5ea2SMohammed Shafi Shajakhan * if bit 29 of modalHeader5G.papdRateMaskHt20 is set
34331c5ea2SMohammed Shafi Shajakhan * -- disable PAPRD for middle band 5GHz
35331c5ea2SMohammed Shafi Shajakhan * if bit 28 of modalHeader5G.papdRateMaskHt20 is set
36331c5ea2SMohammed Shafi Shajakhan * -- disable PAPRD for lower band 5GHz
37331c5ea2SMohammed Shafi Shajakhan */
38331c5ea2SMohammed Shafi Shajakhan
39673424ceSWenli Looi if (!is2ghz) {
40331c5ea2SMohammed Shafi Shajakhan if (chan->channel >= UPPER_5G_SUB_BAND_START) {
41673424ceSWenli Looi if (ar9003_get_paprd_rate_mask_ht20(ah, is2ghz)
42331c5ea2SMohammed Shafi Shajakhan & BIT(30))
43331c5ea2SMohammed Shafi Shajakhan val = false;
44331c5ea2SMohammed Shafi Shajakhan } else if (chan->channel >= MID_5G_SUB_BAND_START) {
45673424ceSWenli Looi if (ar9003_get_paprd_rate_mask_ht20(ah, is2ghz)
46331c5ea2SMohammed Shafi Shajakhan & BIT(29))
47331c5ea2SMohammed Shafi Shajakhan val = false;
48331c5ea2SMohammed Shafi Shajakhan } else {
49673424ceSWenli Looi if (ar9003_get_paprd_rate_mask_ht20(ah, is2ghz)
50331c5ea2SMohammed Shafi Shajakhan & BIT(28))
51331c5ea2SMohammed Shafi Shajakhan val = false;
52331c5ea2SMohammed Shafi Shajakhan }
53331c5ea2SMohammed Shafi Shajakhan }
5445ef6a0bSVasanthakumar Thiagarajan
5545ef6a0bSVasanthakumar Thiagarajan if (val) {
5645ef6a0bSVasanthakumar Thiagarajan ah->paprd_table_write_done = true;
5764ea57d0SGabor Juhos ath9k_hw_apply_txpower(ah, chan, false);
5845ef6a0bSVasanthakumar Thiagarajan }
5945ef6a0bSVasanthakumar Thiagarajan
60717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_CTRL0_B0,
61717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL0_PAPRD_ENABLE, !!val);
6211441fb8SVasanthakumar Thiagarajan if (ah->caps.tx_chainmask & BIT(1))
63717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_CTRL0_B1,
64717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL0_PAPRD_ENABLE, !!val);
6511441fb8SVasanthakumar Thiagarajan if (ah->caps.tx_chainmask & BIT(2))
66717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_CTRL0_B2,
67717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL0_PAPRD_ENABLE, !!val);
68717f6bedSFelix Fietkau }
69717f6bedSFelix Fietkau EXPORT_SYMBOL(ar9003_paprd_enable);
70717f6bedSFelix Fietkau
ar9003_get_training_power_2g(struct ath_hw * ah)711bf38661SFelix Fietkau static int ar9003_get_training_power_2g(struct ath_hw *ah)
72717f6bedSFelix Fietkau {
73931749bfSMohammed Shafi Shajakhan struct ath9k_channel *chan = ah->curchan;
741bf38661SFelix Fietkau unsigned int power, scale, delta;
751bf38661SFelix Fietkau
76931749bfSMohammed Shafi Shajakhan scale = ar9003_get_paprd_scale_factor(ah, chan);
771562580eSSujith Manoharan
781562580eSSujith Manoharan if (AR_SREV_9330(ah) || AR_SREV_9340(ah) ||
791562580eSSujith Manoharan AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
801562580eSSujith Manoharan power = ah->paprd_target_power + 2;
811562580eSSujith Manoharan } else if (AR_SREV_9485(ah)) {
821562580eSSujith Manoharan power = 25;
831562580eSSujith Manoharan } else {
841bf38661SFelix Fietkau power = REG_READ_FIELD(ah, AR_PHY_POWERTX_RATE5,
851bf38661SFelix Fietkau AR_PHY_POWERTX_RATE5_POWERTXHT20_0);
861bf38661SFelix Fietkau
871bf38661SFelix Fietkau delta = abs((int) ah->paprd_target_power - (int) power);
881bf38661SFelix Fietkau if (delta > scale)
891bf38661SFelix Fietkau return -1;
901bf38661SFelix Fietkau
911bf38661SFelix Fietkau if (delta < 4)
921bf38661SFelix Fietkau power -= 4 - delta;
931562580eSSujith Manoharan }
941bf38661SFelix Fietkau
951bf38661SFelix Fietkau return power;
961bf38661SFelix Fietkau }
971bf38661SFelix Fietkau
ar9003_get_training_power_5g(struct ath_hw * ah)981bf38661SFelix Fietkau static int ar9003_get_training_power_5g(struct ath_hw *ah)
991bf38661SFelix Fietkau {
1001bf38661SFelix Fietkau struct ath_common *common = ath9k_hw_common(ah);
1011bf38661SFelix Fietkau struct ath9k_channel *chan = ah->curchan;
1021bf38661SFelix Fietkau unsigned int power, scale, delta;
1031bf38661SFelix Fietkau
104931749bfSMohammed Shafi Shajakhan scale = ar9003_get_paprd_scale_factor(ah, chan);
1051bf38661SFelix Fietkau
1061bf38661SFelix Fietkau if (IS_CHAN_HT40(chan))
1071bf38661SFelix Fietkau power = REG_READ_FIELD(ah, AR_PHY_POWERTX_RATE8,
1081bf38661SFelix Fietkau AR_PHY_POWERTX_RATE8_POWERTXHT40_5);
1091bf38661SFelix Fietkau else
1101bf38661SFelix Fietkau power = REG_READ_FIELD(ah, AR_PHY_POWERTX_RATE6,
1111bf38661SFelix Fietkau AR_PHY_POWERTX_RATE6_POWERTXHT20_5);
1121bf38661SFelix Fietkau
1131bf38661SFelix Fietkau power += scale;
1141bf38661SFelix Fietkau delta = abs((int) ah->paprd_target_power - (int) power);
1151bf38661SFelix Fietkau if (delta > scale)
1161bf38661SFelix Fietkau return -1;
1171bf38661SFelix Fietkau
11882b2d334SFelix Fietkau switch (get_streams(ah->txchainmask)) {
1197952ca5bSMohammed Shafi Shajakhan case 1:
1207952ca5bSMohammed Shafi Shajakhan delta = 6;
1217952ca5bSMohammed Shafi Shajakhan break;
1227952ca5bSMohammed Shafi Shajakhan case 2:
1237952ca5bSMohammed Shafi Shajakhan delta = 4;
1247952ca5bSMohammed Shafi Shajakhan break;
1257952ca5bSMohammed Shafi Shajakhan case 3:
1267952ca5bSMohammed Shafi Shajakhan delta = 2;
1277952ca5bSMohammed Shafi Shajakhan break;
1287952ca5bSMohammed Shafi Shajakhan default:
1297952ca5bSMohammed Shafi Shajakhan delta = 0;
130d2182b69SJoe Perches ath_dbg(common, CALIBRATE, "Invalid tx-chainmask: %u\n",
131d2182b69SJoe Perches ah->txchainmask);
1327952ca5bSMohammed Shafi Shajakhan }
1337952ca5bSMohammed Shafi Shajakhan
1347952ca5bSMohammed Shafi Shajakhan power += delta;
1351bf38661SFelix Fietkau return power;
1361bf38661SFelix Fietkau }
1371bf38661SFelix Fietkau
ar9003_paprd_setup_single_table(struct ath_hw * ah)1381bf38661SFelix Fietkau static int ar9003_paprd_setup_single_table(struct ath_hw *ah)
1391bf38661SFelix Fietkau {
1401bf38661SFelix Fietkau struct ath_common *common = ath9k_hw_common(ah);
14107b2fa5aSJoe Perches static const u32 ctrl0[3] = {
142717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL0_B0,
143717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL0_B1,
144717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL0_B2
145717f6bedSFelix Fietkau };
14607b2fa5aSJoe Perches static const u32 ctrl1[3] = {
147717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL1_B0,
148717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL1_B1,
149717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL1_B2
150717f6bedSFelix Fietkau };
1511bf38661SFelix Fietkau int training_power;
1522577c6e8SSenthil Balasubramanian int i, val;
15326228959SFelix Fietkau u32 am2pm_mask = ah->paprd_ratemask;
154717f6bedSFelix Fietkau
1551bf38661SFelix Fietkau if (IS_CHAN_2GHZ(ah->curchan))
1561bf38661SFelix Fietkau training_power = ar9003_get_training_power_2g(ah);
1571bf38661SFelix Fietkau else
1581bf38661SFelix Fietkau training_power = ar9003_get_training_power_5g(ah);
1591bf38661SFelix Fietkau
160d2182b69SJoe Perches ath_dbg(common, CALIBRATE, "Training power: %d, Target power: %d\n",
16184288044SMohammed Shafi Shajakhan training_power, ah->paprd_target_power);
16284288044SMohammed Shafi Shajakhan
1631bf38661SFelix Fietkau if (training_power < 0) {
164d2182b69SJoe Perches ath_dbg(common, CALIBRATE,
165d2182b69SJoe Perches "PAPRD target power delta out of range\n");
1661bf38661SFelix Fietkau return -ERANGE;
1671bf38661SFelix Fietkau }
1681bf38661SFelix Fietkau ah->paprd_training_power = training_power;
1691bf38661SFelix Fietkau
17026228959SFelix Fietkau if (AR_SREV_9330(ah))
17126228959SFelix Fietkau am2pm_mask = 0;
17226228959SFelix Fietkau
1737072bf62SVasanthakumar Thiagarajan REG_RMW_FIELD(ah, AR_PHY_PAPRD_AM2AM, AR_PHY_PAPRD_AM2AM_MASK,
1747072bf62SVasanthakumar Thiagarajan ah->paprd_ratemask);
1757072bf62SVasanthakumar Thiagarajan REG_RMW_FIELD(ah, AR_PHY_PAPRD_AM2PM, AR_PHY_PAPRD_AM2PM_MASK,
17626228959SFelix Fietkau am2pm_mask);
1777072bf62SVasanthakumar Thiagarajan REG_RMW_FIELD(ah, AR_PHY_PAPRD_HT40, AR_PHY_PAPRD_HT40_MASK,
178f1a8abb0SFelix Fietkau ah->paprd_ratemask_ht40);
179717f6bedSFelix Fietkau
180914d0f4dSSujith Manoharan ath_dbg(common, CALIBRATE, "PAPRD HT20 mask: 0x%x, HT40 mask: 0x%x\n",
181914d0f4dSSujith Manoharan ah->paprd_ratemask, ah->paprd_ratemask_ht40);
182914d0f4dSSujith Manoharan
18311441fb8SVasanthakumar Thiagarajan for (i = 0; i < ah->caps.max_txchains; i++) {
184717f6bedSFelix Fietkau REG_RMW_FIELD(ah, ctrl0[i],
185717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL0_USE_SINGLE_TABLE_MASK, 1);
186717f6bedSFelix Fietkau REG_RMW_FIELD(ah, ctrl1[i],
187717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL1_ADAPTIVE_AM2PM_ENABLE, 1);
188717f6bedSFelix Fietkau REG_RMW_FIELD(ah, ctrl1[i],
189717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL1_ADAPTIVE_AM2AM_ENABLE, 1);
190717f6bedSFelix Fietkau REG_RMW_FIELD(ah, ctrl1[i],
191717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL1_ADAPTIVE_SCALING_ENA, 0);
192717f6bedSFelix Fietkau REG_RMW_FIELD(ah, ctrl1[i],
193717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL1_PA_GAIN_SCALE_FACT_MASK, 181);
194717f6bedSFelix Fietkau REG_RMW_FIELD(ah, ctrl1[i],
195717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL1_PAPRD_MAG_SCALE_FACT, 361);
196717f6bedSFelix Fietkau REG_RMW_FIELD(ah, ctrl1[i],
197717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL1_ADAPTIVE_SCALING_ENA, 0);
198717f6bedSFelix Fietkau REG_RMW_FIELD(ah, ctrl0[i],
199717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL0_PAPRD_MAG_THRSH, 3);
200717f6bedSFelix Fietkau }
201717f6bedSFelix Fietkau
202717f6bedSFelix Fietkau ar9003_paprd_enable(ah, false);
203717f6bedSFelix Fietkau
204*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL1(ah),
205717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL1_CF_PAPRD_LB_SKIP, 0x30);
206*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL1(ah),
207717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL1_CF_PAPRD_LB_ENABLE, 1);
208*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL1(ah),
209717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL1_CF_PAPRD_TX_GAIN_FORCE, 1);
210*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL1(ah),
211717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL1_CF_PAPRD_RX_BB_GAIN_FORCE, 0);
212*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL1(ah),
213717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL1_CF_PAPRD_IQCORR_ENABLE, 0);
214*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL1(ah),
215717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL1_CF_PAPRD_AGC2_SETTLING, 28);
216*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL1(ah),
217717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL1_CF_CF_PAPRD_TRAIN_ENABLE, 1);
2188c723e2dSSujith Manoharan
2198c723e2dSSujith Manoharan if (AR_SREV_9485(ah)) {
2208c723e2dSSujith Manoharan val = 148;
2218c723e2dSSujith Manoharan } else {
2228c723e2dSSujith Manoharan if (IS_CHAN_2GHZ(ah->curchan)) {
2238c723e2dSSujith Manoharan if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
2248c723e2dSSujith Manoharan val = 145;
2258c723e2dSSujith Manoharan else
2268c723e2dSSujith Manoharan val = 147;
2278c723e2dSSujith Manoharan } else {
2288c723e2dSSujith Manoharan val = 137;
2298c723e2dSSujith Manoharan }
2308c723e2dSSujith Manoharan }
2318c723e2dSSujith Manoharan
232*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL2(ah),
2332577c6e8SSenthil Balasubramanian AR_PHY_PAPRD_TRAINER_CNTL2_CF_PAPRD_INIT_RX_BB_GAIN, val);
234*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3(ah),
235717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_FINE_CORR_LEN, 4);
236*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3(ah),
237717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_COARSE_CORR_LEN, 4);
238*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3(ah),
239717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_NUM_CORR_STAGES, 7);
240*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3(ah),
241717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_MIN_LOOPBACK_DEL, 1);
2428c723e2dSSujith Manoharan
2438c723e2dSSujith Manoharan if (AR_SREV_9485(ah) ||
2448c723e2dSSujith Manoharan AR_SREV_9462(ah) ||
2458c723e2dSSujith Manoharan AR_SREV_9565(ah) ||
2468c723e2dSSujith Manoharan AR_SREV_9550(ah) ||
2478c723e2dSSujith Manoharan AR_SREV_9330(ah) ||
2488c723e2dSSujith Manoharan AR_SREV_9340(ah))
249*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3(ah),
2508c723e2dSSujith Manoharan AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP, -3);
25111441fb8SVasanthakumar Thiagarajan else
252*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3(ah),
2538c723e2dSSujith Manoharan AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP, -6);
2548c723e2dSSujith Manoharan
2558c723e2dSSujith Manoharan val = -10;
2568c723e2dSSujith Manoharan
2578c723e2dSSujith Manoharan if (IS_CHAN_2GHZ(ah->curchan) && !AR_SREV_9462(ah) && !AR_SREV_9565(ah))
2588c723e2dSSujith Manoharan val = -15;
2598c723e2dSSujith Manoharan
260*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3(ah),
261717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_ADC_DESIRED_SIZE,
2622577c6e8SSenthil Balasubramanian val);
263*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3(ah),
264717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_BBTXMIX_DISABLE, 1);
265*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL4(ah),
266717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL4_CF_PAPRD_SAFETY_DELTA, 0);
267*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL4(ah),
268717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL4_CF_PAPRD_MIN_CORR, 400);
269*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL4(ah),
270717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL4_CF_PAPRD_NUM_TRAIN_SAMPLES,
271717f6bedSFelix Fietkau 100);
272717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_PRE_POST_SCALE_0_B0,
273717f6bedSFelix Fietkau AR_PHY_PAPRD_PRE_POST_SCALING, 261376);
274717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_PRE_POST_SCALE_1_B0,
275717f6bedSFelix Fietkau AR_PHY_PAPRD_PRE_POST_SCALING, 248079);
276717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_PRE_POST_SCALE_2_B0,
277717f6bedSFelix Fietkau AR_PHY_PAPRD_PRE_POST_SCALING, 233759);
278717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_PRE_POST_SCALE_3_B0,
279717f6bedSFelix Fietkau AR_PHY_PAPRD_PRE_POST_SCALING, 220464);
280717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_PRE_POST_SCALE_4_B0,
281717f6bedSFelix Fietkau AR_PHY_PAPRD_PRE_POST_SCALING, 208194);
282717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_PRE_POST_SCALE_5_B0,
283717f6bedSFelix Fietkau AR_PHY_PAPRD_PRE_POST_SCALING, 196949);
284717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_PRE_POST_SCALE_6_B0,
285717f6bedSFelix Fietkau AR_PHY_PAPRD_PRE_POST_SCALING, 185706);
286717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_PRE_POST_SCALE_7_B0,
287717f6bedSFelix Fietkau AR_PHY_PAPRD_PRE_POST_SCALING, 175487);
2881bf38661SFelix Fietkau return 0;
289717f6bedSFelix Fietkau }
290717f6bedSFelix Fietkau
ar9003_paprd_get_gain_table(struct ath_hw * ah)291717f6bedSFelix Fietkau static void ar9003_paprd_get_gain_table(struct ath_hw *ah)
292717f6bedSFelix Fietkau {
293717f6bedSFelix Fietkau u32 *entry = ah->paprd_gain_table_entries;
294717f6bedSFelix Fietkau u8 *index = ah->paprd_gain_table_index;
295717f6bedSFelix Fietkau u32 reg = AR_PHY_TXGAIN_TABLE;
296717f6bedSFelix Fietkau int i;
297717f6bedSFelix Fietkau
29805b60d4eSMohammed Shafi Shajakhan for (i = 0; i < PAPRD_GAIN_TABLE_ENTRIES; i++) {
299717f6bedSFelix Fietkau entry[i] = REG_READ(ah, reg);
300717f6bedSFelix Fietkau index[i] = (entry[i] >> 24) & 0xff;
301717f6bedSFelix Fietkau reg += 4;
302717f6bedSFelix Fietkau }
303717f6bedSFelix Fietkau }
304717f6bedSFelix Fietkau
ar9003_get_desired_gain(struct ath_hw * ah,int chain,int target_power)305717f6bedSFelix Fietkau static unsigned int ar9003_get_desired_gain(struct ath_hw *ah, int chain,
306717f6bedSFelix Fietkau int target_power)
307717f6bedSFelix Fietkau {
308f68e20f0SMohammed Shafi Shajakhan int olpc_gain_delta = 0, cl_gain_mod;
309717f6bedSFelix Fietkau int alpha_therm, alpha_volt;
310717f6bedSFelix Fietkau int therm_cal_value, volt_cal_value;
311717f6bedSFelix Fietkau int therm_value, volt_value;
312717f6bedSFelix Fietkau int thermal_gain_corr, voltage_gain_corr;
313717f6bedSFelix Fietkau int desired_scale, desired_gain = 0;
314f68e20f0SMohammed Shafi Shajakhan u32 reg_olpc = 0, reg_cl_gain = 0;
315717f6bedSFelix Fietkau
316*b3a663f0SWenli Looi REG_CLR_BIT(ah, AR_PHY_PAPRD_TRAINER_STAT1(ah),
317717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_TRAIN_DONE);
318717f6bedSFelix Fietkau desired_scale = REG_READ_FIELD(ah, AR_PHY_TPC_12,
319717f6bedSFelix Fietkau AR_PHY_TPC_12_DESIRED_SCALE_HT40_5);
320717f6bedSFelix Fietkau alpha_therm = REG_READ_FIELD(ah, AR_PHY_TPC_19,
321717f6bedSFelix Fietkau AR_PHY_TPC_19_ALPHA_THERM);
322717f6bedSFelix Fietkau alpha_volt = REG_READ_FIELD(ah, AR_PHY_TPC_19,
323717f6bedSFelix Fietkau AR_PHY_TPC_19_ALPHA_VOLT);
324717f6bedSFelix Fietkau therm_cal_value = REG_READ_FIELD(ah, AR_PHY_TPC_18,
325717f6bedSFelix Fietkau AR_PHY_TPC_18_THERM_CAL_VALUE);
326717f6bedSFelix Fietkau volt_cal_value = REG_READ_FIELD(ah, AR_PHY_TPC_18,
327717f6bedSFelix Fietkau AR_PHY_TPC_18_VOLT_CAL_VALUE);
328717f6bedSFelix Fietkau therm_value = REG_READ_FIELD(ah, AR_PHY_BB_THERM_ADC_4,
329717f6bedSFelix Fietkau AR_PHY_BB_THERM_ADC_4_LATEST_THERM_VALUE);
330717f6bedSFelix Fietkau volt_value = REG_READ_FIELD(ah, AR_PHY_BB_THERM_ADC_4,
331717f6bedSFelix Fietkau AR_PHY_BB_THERM_ADC_4_LATEST_VOLT_VALUE);
332717f6bedSFelix Fietkau
333f68e20f0SMohammed Shafi Shajakhan switch (chain) {
334f68e20f0SMohammed Shafi Shajakhan case 0:
335f68e20f0SMohammed Shafi Shajakhan reg_olpc = AR_PHY_TPC_11_B0;
336f68e20f0SMohammed Shafi Shajakhan reg_cl_gain = AR_PHY_CL_TAB_0;
337f68e20f0SMohammed Shafi Shajakhan break;
338f68e20f0SMohammed Shafi Shajakhan case 1:
339f68e20f0SMohammed Shafi Shajakhan reg_olpc = AR_PHY_TPC_11_B1;
340f68e20f0SMohammed Shafi Shajakhan reg_cl_gain = AR_PHY_CL_TAB_1;
341f68e20f0SMohammed Shafi Shajakhan break;
342f68e20f0SMohammed Shafi Shajakhan case 2:
343f68e20f0SMohammed Shafi Shajakhan reg_olpc = AR_PHY_TPC_11_B2;
344f68e20f0SMohammed Shafi Shajakhan reg_cl_gain = AR_PHY_CL_TAB_2;
345f68e20f0SMohammed Shafi Shajakhan break;
346f68e20f0SMohammed Shafi Shajakhan default:
347d2182b69SJoe Perches ath_dbg(ath9k_hw_common(ah), CALIBRATE,
348f68e20f0SMohammed Shafi Shajakhan "Invalid chainmask: %d\n", chain);
349f68e20f0SMohammed Shafi Shajakhan break;
350f68e20f0SMohammed Shafi Shajakhan }
351717f6bedSFelix Fietkau
352f68e20f0SMohammed Shafi Shajakhan olpc_gain_delta = REG_READ_FIELD(ah, reg_olpc,
353717f6bedSFelix Fietkau AR_PHY_TPC_11_OLPC_GAIN_DELTA);
354f68e20f0SMohammed Shafi Shajakhan cl_gain_mod = REG_READ_FIELD(ah, reg_cl_gain,
355f68e20f0SMohammed Shafi Shajakhan AR_PHY_CL_TAB_CL_GAIN_MOD);
356717f6bedSFelix Fietkau
357717f6bedSFelix Fietkau if (olpc_gain_delta >= 128)
358717f6bedSFelix Fietkau olpc_gain_delta = olpc_gain_delta - 256;
359717f6bedSFelix Fietkau
360717f6bedSFelix Fietkau thermal_gain_corr = (alpha_therm * (therm_value - therm_cal_value) +
361717f6bedSFelix Fietkau (256 / 2)) / 256;
362717f6bedSFelix Fietkau voltage_gain_corr = (alpha_volt * (volt_value - volt_cal_value) +
363717f6bedSFelix Fietkau (128 / 2)) / 128;
364717f6bedSFelix Fietkau desired_gain = target_power - olpc_gain_delta - thermal_gain_corr -
365f68e20f0SMohammed Shafi Shajakhan voltage_gain_corr + desired_scale + cl_gain_mod;
366717f6bedSFelix Fietkau
367717f6bedSFelix Fietkau return desired_gain;
368717f6bedSFelix Fietkau }
369717f6bedSFelix Fietkau
ar9003_tx_force_gain(struct ath_hw * ah,unsigned int gain_index)370717f6bedSFelix Fietkau static void ar9003_tx_force_gain(struct ath_hw *ah, unsigned int gain_index)
371717f6bedSFelix Fietkau {
372717f6bedSFelix Fietkau int selected_gain_entry, txbb1dbgain, txbb6dbgain, txmxrgain;
373717f6bedSFelix Fietkau int padrvgnA, padrvgnB, padrvgnC, padrvgnD;
374717f6bedSFelix Fietkau u32 *gain_table_entries = ah->paprd_gain_table_entries;
375717f6bedSFelix Fietkau
376717f6bedSFelix Fietkau selected_gain_entry = gain_table_entries[gain_index];
377717f6bedSFelix Fietkau txbb1dbgain = selected_gain_entry & 0x7;
378717f6bedSFelix Fietkau txbb6dbgain = (selected_gain_entry >> 3) & 0x3;
379717f6bedSFelix Fietkau txmxrgain = (selected_gain_entry >> 5) & 0xf;
380717f6bedSFelix Fietkau padrvgnA = (selected_gain_entry >> 9) & 0xf;
381717f6bedSFelix Fietkau padrvgnB = (selected_gain_entry >> 13) & 0xf;
382717f6bedSFelix Fietkau padrvgnC = (selected_gain_entry >> 17) & 0xf;
383717f6bedSFelix Fietkau padrvgnD = (selected_gain_entry >> 21) & 0x3;
384717f6bedSFelix Fietkau
385717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
386717f6bedSFelix Fietkau AR_PHY_TX_FORCED_GAIN_FORCED_TXBB1DBGAIN, txbb1dbgain);
387717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
388717f6bedSFelix Fietkau AR_PHY_TX_FORCED_GAIN_FORCED_TXBB6DBGAIN, txbb6dbgain);
389717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
390717f6bedSFelix Fietkau AR_PHY_TX_FORCED_GAIN_FORCED_TXMXRGAIN, txmxrgain);
391717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
392717f6bedSFelix Fietkau AR_PHY_TX_FORCED_GAIN_FORCED_PADRVGNA, padrvgnA);
393717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
394717f6bedSFelix Fietkau AR_PHY_TX_FORCED_GAIN_FORCED_PADRVGNB, padrvgnB);
395717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
396717f6bedSFelix Fietkau AR_PHY_TX_FORCED_GAIN_FORCED_PADRVGNC, padrvgnC);
397717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
398717f6bedSFelix Fietkau AR_PHY_TX_FORCED_GAIN_FORCED_PADRVGND, padrvgnD);
399717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
400717f6bedSFelix Fietkau AR_PHY_TX_FORCED_GAIN_FORCED_ENABLE_PAL, 0);
401717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
402717f6bedSFelix Fietkau AR_PHY_TX_FORCED_GAIN_FORCE_TX_GAIN, 0);
403717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_TPC_1, AR_PHY_TPC_1_FORCED_DAC_GAIN, 0);
404717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_TPC_1, AR_PHY_TPC_1_FORCE_DAC_GAIN, 0);
405717f6bedSFelix Fietkau }
406717f6bedSFelix Fietkau
find_expn(int num)407717f6bedSFelix Fietkau static inline int find_expn(int num)
408717f6bedSFelix Fietkau {
409717f6bedSFelix Fietkau return fls(num) - 1;
410717f6bedSFelix Fietkau }
411717f6bedSFelix Fietkau
find_proper_scale(int expn,int N)412717f6bedSFelix Fietkau static inline int find_proper_scale(int expn, int N)
413717f6bedSFelix Fietkau {
414717f6bedSFelix Fietkau return (expn > N) ? expn - 10 : 0;
415717f6bedSFelix Fietkau }
416717f6bedSFelix Fietkau
417717f6bedSFelix Fietkau #define NUM_BIN 23
418717f6bedSFelix Fietkau
create_pa_curve(u32 * data_L,u32 * data_U,u32 * pa_table,u16 * gain)419717f6bedSFelix Fietkau static bool create_pa_curve(u32 *data_L, u32 *data_U, u32 *pa_table, u16 *gain)
420717f6bedSFelix Fietkau {
421717f6bedSFelix Fietkau unsigned int thresh_accum_cnt;
422717f6bedSFelix Fietkau int x_est[NUM_BIN + 1], Y[NUM_BIN + 1], theta[NUM_BIN + 1];
423717f6bedSFelix Fietkau int PA_in[NUM_BIN + 1];
424717f6bedSFelix Fietkau int B1_tmp[NUM_BIN + 1], B2_tmp[NUM_BIN + 1];
425717f6bedSFelix Fietkau unsigned int B1_abs_max, B2_abs_max;
426717f6bedSFelix Fietkau int max_index, scale_factor;
427717f6bedSFelix Fietkau int y_est[NUM_BIN + 1];
428717f6bedSFelix Fietkau int x_est_fxp1_nonlin, x_tilde[NUM_BIN + 1];
429717f6bedSFelix Fietkau unsigned int x_tilde_abs;
430717f6bedSFelix Fietkau int G_fxp, Y_intercept, order_x_by_y, M, I, L, sum_y_sqr, sum_y_quad;
431717f6bedSFelix Fietkau int Q_x, Q_B1, Q_B2, beta_raw, alpha_raw, scale_B;
432717f6bedSFelix Fietkau int Q_scale_B, Q_beta, Q_alpha, alpha, beta, order_1, order_2;
433717f6bedSFelix Fietkau int order1_5x, order2_3x, order1_5x_rem, order2_3x_rem;
434717f6bedSFelix Fietkau int y5, y3, tmp;
435717f6bedSFelix Fietkau int theta_low_bin = 0;
436717f6bedSFelix Fietkau int i;
437717f6bedSFelix Fietkau
438717f6bedSFelix Fietkau /* disregard any bin that contains <= 16 samples */
439717f6bedSFelix Fietkau thresh_accum_cnt = 16;
440717f6bedSFelix Fietkau scale_factor = 5;
441717f6bedSFelix Fietkau max_index = 0;
442717f6bedSFelix Fietkau memset(theta, 0, sizeof(theta));
443717f6bedSFelix Fietkau memset(x_est, 0, sizeof(x_est));
444717f6bedSFelix Fietkau memset(Y, 0, sizeof(Y));
445717f6bedSFelix Fietkau memset(y_est, 0, sizeof(y_est));
446717f6bedSFelix Fietkau memset(x_tilde, 0, sizeof(x_tilde));
447717f6bedSFelix Fietkau
448717f6bedSFelix Fietkau for (i = 0; i < NUM_BIN; i++) {
449717f6bedSFelix Fietkau s32 accum_cnt, accum_tx, accum_rx, accum_ang;
450717f6bedSFelix Fietkau
451717f6bedSFelix Fietkau /* number of samples */
452717f6bedSFelix Fietkau accum_cnt = data_L[i] & 0xffff;
453717f6bedSFelix Fietkau
454717f6bedSFelix Fietkau if (accum_cnt <= thresh_accum_cnt)
455717f6bedSFelix Fietkau continue;
456717f6bedSFelix Fietkau
4579c8426fcSFelix Fietkau max_index++;
4589c8426fcSFelix Fietkau
459717f6bedSFelix Fietkau /* sum(tx amplitude) */
460717f6bedSFelix Fietkau accum_tx = ((data_L[i] >> 16) & 0xffff) |
461717f6bedSFelix Fietkau ((data_U[i] & 0x7ff) << 16);
462717f6bedSFelix Fietkau
463717f6bedSFelix Fietkau /* sum(rx amplitude distance to lower bin edge) */
464717f6bedSFelix Fietkau accum_rx = ((data_U[i] >> 11) & 0x1f) |
465717f6bedSFelix Fietkau ((data_L[i + 23] & 0xffff) << 5);
466717f6bedSFelix Fietkau
467717f6bedSFelix Fietkau /* sum(angles) */
468717f6bedSFelix Fietkau accum_ang = ((data_L[i + 23] >> 16) & 0xffff) |
469717f6bedSFelix Fietkau ((data_U[i + 23] & 0x7ff) << 16);
470717f6bedSFelix Fietkau
471717f6bedSFelix Fietkau accum_tx <<= scale_factor;
472717f6bedSFelix Fietkau accum_rx <<= scale_factor;
4739c8426fcSFelix Fietkau x_est[max_index] =
4749c8426fcSFelix Fietkau (((accum_tx + accum_cnt) / accum_cnt) + 32) >>
475717f6bedSFelix Fietkau scale_factor;
476717f6bedSFelix Fietkau
4779c8426fcSFelix Fietkau Y[max_index] =
4789c8426fcSFelix Fietkau ((((accum_rx + accum_cnt) / accum_cnt) + 32) >>
479717f6bedSFelix Fietkau scale_factor) +
4809c8426fcSFelix Fietkau (1 << scale_factor) * i + 16;
481717f6bedSFelix Fietkau
482717f6bedSFelix Fietkau if (accum_ang >= (1 << 26))
483717f6bedSFelix Fietkau accum_ang -= 1 << 27;
484717f6bedSFelix Fietkau
4859c8426fcSFelix Fietkau theta[max_index] =
4869c8426fcSFelix Fietkau ((accum_ang * (1 << scale_factor)) + accum_cnt) /
487717f6bedSFelix Fietkau accum_cnt;
488717f6bedSFelix Fietkau }
489717f6bedSFelix Fietkau
490717f6bedSFelix Fietkau /*
491717f6bedSFelix Fietkau * Find average theta of first 5 bin and all of those to same value.
492717f6bedSFelix Fietkau * Curve is linear at that range.
493717f6bedSFelix Fietkau */
494717f6bedSFelix Fietkau for (i = 1; i < 6; i++)
495717f6bedSFelix Fietkau theta_low_bin += theta[i];
496717f6bedSFelix Fietkau
497717f6bedSFelix Fietkau theta_low_bin = theta_low_bin / 5;
498717f6bedSFelix Fietkau for (i = 1; i < 6; i++)
499717f6bedSFelix Fietkau theta[i] = theta_low_bin;
500717f6bedSFelix Fietkau
501717f6bedSFelix Fietkau /* Set values at origin */
502717f6bedSFelix Fietkau theta[0] = theta_low_bin;
503717f6bedSFelix Fietkau for (i = 0; i <= max_index; i++)
504717f6bedSFelix Fietkau theta[i] -= theta_low_bin;
505717f6bedSFelix Fietkau
506717f6bedSFelix Fietkau x_est[0] = 0;
507717f6bedSFelix Fietkau Y[0] = 0;
508717f6bedSFelix Fietkau scale_factor = 8;
509717f6bedSFelix Fietkau
510717f6bedSFelix Fietkau /* low signal gain */
511717f6bedSFelix Fietkau if (x_est[6] == x_est[3])
512717f6bedSFelix Fietkau return false;
513717f6bedSFelix Fietkau
514717f6bedSFelix Fietkau G_fxp =
515717f6bedSFelix Fietkau (((Y[6] - Y[3]) * 1 << scale_factor) +
516717f6bedSFelix Fietkau (x_est[6] - x_est[3])) / (x_est[6] - x_est[3]);
517717f6bedSFelix Fietkau
5182d3fca18SSenthil Balasubramanian /* prevent division by zero */
5192d3fca18SSenthil Balasubramanian if (G_fxp == 0)
5202d3fca18SSenthil Balasubramanian return false;
5212d3fca18SSenthil Balasubramanian
522717f6bedSFelix Fietkau Y_intercept =
523717f6bedSFelix Fietkau (G_fxp * (x_est[0] - x_est[3]) +
524717f6bedSFelix Fietkau (1 << scale_factor)) / (1 << scale_factor) + Y[3];
525717f6bedSFelix Fietkau
526717f6bedSFelix Fietkau for (i = 0; i <= max_index; i++)
527717f6bedSFelix Fietkau y_est[i] = Y[i] - Y_intercept;
528717f6bedSFelix Fietkau
529717f6bedSFelix Fietkau for (i = 0; i <= 3; i++) {
530717f6bedSFelix Fietkau y_est[i] = i * 32;
531717f6bedSFelix Fietkau x_est[i] = ((y_est[i] * 1 << scale_factor) + G_fxp) / G_fxp;
532717f6bedSFelix Fietkau }
533717f6bedSFelix Fietkau
5342d3fca18SSenthil Balasubramanian if (y_est[max_index] == 0)
5352d3fca18SSenthil Balasubramanian return false;
5362d3fca18SSenthil Balasubramanian
537717f6bedSFelix Fietkau x_est_fxp1_nonlin =
538717f6bedSFelix Fietkau x_est[max_index] - ((1 << scale_factor) * y_est[max_index] +
539717f6bedSFelix Fietkau G_fxp) / G_fxp;
540717f6bedSFelix Fietkau
541717f6bedSFelix Fietkau order_x_by_y =
542717f6bedSFelix Fietkau (x_est_fxp1_nonlin + y_est[max_index]) / y_est[max_index];
543717f6bedSFelix Fietkau
544717f6bedSFelix Fietkau if (order_x_by_y == 0)
545717f6bedSFelix Fietkau M = 10;
546717f6bedSFelix Fietkau else if (order_x_by_y == 1)
547717f6bedSFelix Fietkau M = 9;
548717f6bedSFelix Fietkau else
549717f6bedSFelix Fietkau M = 8;
550717f6bedSFelix Fietkau
551717f6bedSFelix Fietkau I = (max_index > 15) ? 7 : max_index >> 1;
552717f6bedSFelix Fietkau L = max_index - I;
553717f6bedSFelix Fietkau scale_factor = 8;
554717f6bedSFelix Fietkau sum_y_sqr = 0;
555717f6bedSFelix Fietkau sum_y_quad = 0;
556717f6bedSFelix Fietkau x_tilde_abs = 0;
557717f6bedSFelix Fietkau
558717f6bedSFelix Fietkau for (i = 0; i <= L; i++) {
559717f6bedSFelix Fietkau unsigned int y_sqr;
560717f6bedSFelix Fietkau unsigned int y_quad;
561717f6bedSFelix Fietkau unsigned int tmp_abs;
562717f6bedSFelix Fietkau
563717f6bedSFelix Fietkau /* prevent division by zero */
564717f6bedSFelix Fietkau if (y_est[i + I] == 0)
565717f6bedSFelix Fietkau return false;
566717f6bedSFelix Fietkau
567717f6bedSFelix Fietkau x_est_fxp1_nonlin =
568717f6bedSFelix Fietkau x_est[i + I] - ((1 << scale_factor) * y_est[i + I] +
569717f6bedSFelix Fietkau G_fxp) / G_fxp;
570717f6bedSFelix Fietkau
571717f6bedSFelix Fietkau x_tilde[i] =
572717f6bedSFelix Fietkau (x_est_fxp1_nonlin * (1 << M) + y_est[i + I]) / y_est[i +
573717f6bedSFelix Fietkau I];
574717f6bedSFelix Fietkau x_tilde[i] =
575717f6bedSFelix Fietkau (x_tilde[i] * (1 << M) + y_est[i + I]) / y_est[i + I];
576717f6bedSFelix Fietkau x_tilde[i] =
577717f6bedSFelix Fietkau (x_tilde[i] * (1 << M) + y_est[i + I]) / y_est[i + I];
578717f6bedSFelix Fietkau y_sqr =
579717f6bedSFelix Fietkau (y_est[i + I] * y_est[i + I] +
580717f6bedSFelix Fietkau (scale_factor * scale_factor)) / (scale_factor *
581717f6bedSFelix Fietkau scale_factor);
582717f6bedSFelix Fietkau tmp_abs = abs(x_tilde[i]);
583717f6bedSFelix Fietkau if (tmp_abs > x_tilde_abs)
584717f6bedSFelix Fietkau x_tilde_abs = tmp_abs;
585717f6bedSFelix Fietkau
586717f6bedSFelix Fietkau y_quad = y_sqr * y_sqr;
587717f6bedSFelix Fietkau sum_y_sqr = sum_y_sqr + y_sqr;
588717f6bedSFelix Fietkau sum_y_quad = sum_y_quad + y_quad;
589717f6bedSFelix Fietkau B1_tmp[i] = y_sqr * (L + 1);
590717f6bedSFelix Fietkau B2_tmp[i] = y_sqr;
591717f6bedSFelix Fietkau }
592717f6bedSFelix Fietkau
593717f6bedSFelix Fietkau B1_abs_max = 0;
594717f6bedSFelix Fietkau B2_abs_max = 0;
595717f6bedSFelix Fietkau for (i = 0; i <= L; i++) {
596717f6bedSFelix Fietkau int abs_val;
597717f6bedSFelix Fietkau
598717f6bedSFelix Fietkau B1_tmp[i] -= sum_y_sqr;
599717f6bedSFelix Fietkau B2_tmp[i] = sum_y_quad - sum_y_sqr * B2_tmp[i];
600717f6bedSFelix Fietkau
601717f6bedSFelix Fietkau abs_val = abs(B1_tmp[i]);
602717f6bedSFelix Fietkau if (abs_val > B1_abs_max)
603717f6bedSFelix Fietkau B1_abs_max = abs_val;
604717f6bedSFelix Fietkau
605717f6bedSFelix Fietkau abs_val = abs(B2_tmp[i]);
606717f6bedSFelix Fietkau if (abs_val > B2_abs_max)
607717f6bedSFelix Fietkau B2_abs_max = abs_val;
608717f6bedSFelix Fietkau }
609717f6bedSFelix Fietkau
610717f6bedSFelix Fietkau Q_x = find_proper_scale(find_expn(x_tilde_abs), 10);
611717f6bedSFelix Fietkau Q_B1 = find_proper_scale(find_expn(B1_abs_max), 10);
612717f6bedSFelix Fietkau Q_B2 = find_proper_scale(find_expn(B2_abs_max), 10);
613717f6bedSFelix Fietkau
614717f6bedSFelix Fietkau beta_raw = 0;
615717f6bedSFelix Fietkau alpha_raw = 0;
616717f6bedSFelix Fietkau for (i = 0; i <= L; i++) {
617717f6bedSFelix Fietkau x_tilde[i] = x_tilde[i] / (1 << Q_x);
618717f6bedSFelix Fietkau B1_tmp[i] = B1_tmp[i] / (1 << Q_B1);
619717f6bedSFelix Fietkau B2_tmp[i] = B2_tmp[i] / (1 << Q_B2);
620717f6bedSFelix Fietkau beta_raw = beta_raw + B1_tmp[i] * x_tilde[i];
621717f6bedSFelix Fietkau alpha_raw = alpha_raw + B2_tmp[i] * x_tilde[i];
622717f6bedSFelix Fietkau }
623717f6bedSFelix Fietkau
624717f6bedSFelix Fietkau scale_B =
625717f6bedSFelix Fietkau ((sum_y_quad / scale_factor) * (L + 1) -
626717f6bedSFelix Fietkau (sum_y_sqr / scale_factor) * sum_y_sqr) * scale_factor;
627717f6bedSFelix Fietkau
628717f6bedSFelix Fietkau Q_scale_B = find_proper_scale(find_expn(abs(scale_B)), 10);
629717f6bedSFelix Fietkau scale_B = scale_B / (1 << Q_scale_B);
6302d3fca18SSenthil Balasubramanian if (scale_B == 0)
6312d3fca18SSenthil Balasubramanian return false;
632717f6bedSFelix Fietkau Q_beta = find_proper_scale(find_expn(abs(beta_raw)), 10);
633717f6bedSFelix Fietkau Q_alpha = find_proper_scale(find_expn(abs(alpha_raw)), 10);
634717f6bedSFelix Fietkau beta_raw = beta_raw / (1 << Q_beta);
635717f6bedSFelix Fietkau alpha_raw = alpha_raw / (1 << Q_alpha);
636717f6bedSFelix Fietkau alpha = (alpha_raw << 10) / scale_B;
637717f6bedSFelix Fietkau beta = (beta_raw << 10) / scale_B;
638717f6bedSFelix Fietkau order_1 = 3 * M - Q_x - Q_B1 - Q_beta + 10 + Q_scale_B;
639717f6bedSFelix Fietkau order_2 = 3 * M - Q_x - Q_B2 - Q_alpha + 10 + Q_scale_B;
640717f6bedSFelix Fietkau order1_5x = order_1 / 5;
641717f6bedSFelix Fietkau order2_3x = order_2 / 3;
642717f6bedSFelix Fietkau order1_5x_rem = order_1 - 5 * order1_5x;
643717f6bedSFelix Fietkau order2_3x_rem = order_2 - 3 * order2_3x;
644717f6bedSFelix Fietkau
645717f6bedSFelix Fietkau for (i = 0; i < PAPRD_TABLE_SZ; i++) {
646717f6bedSFelix Fietkau tmp = i * 32;
647717f6bedSFelix Fietkau y5 = ((beta * tmp) >> 6) >> order1_5x;
648717f6bedSFelix Fietkau y5 = (y5 * tmp) >> order1_5x;
649717f6bedSFelix Fietkau y5 = (y5 * tmp) >> order1_5x;
650717f6bedSFelix Fietkau y5 = (y5 * tmp) >> order1_5x;
651717f6bedSFelix Fietkau y5 = (y5 * tmp) >> order1_5x;
652717f6bedSFelix Fietkau y5 = y5 >> order1_5x_rem;
653717f6bedSFelix Fietkau y3 = (alpha * tmp) >> order2_3x;
654717f6bedSFelix Fietkau y3 = (y3 * tmp) >> order2_3x;
655717f6bedSFelix Fietkau y3 = (y3 * tmp) >> order2_3x;
656717f6bedSFelix Fietkau y3 = y3 >> order2_3x_rem;
657717f6bedSFelix Fietkau PA_in[i] = y5 + y3 + (256 * tmp) / G_fxp;
658717f6bedSFelix Fietkau
659717f6bedSFelix Fietkau if (i >= 2) {
660717f6bedSFelix Fietkau tmp = PA_in[i] - PA_in[i - 1];
661717f6bedSFelix Fietkau if (tmp < 0)
662717f6bedSFelix Fietkau PA_in[i] =
663717f6bedSFelix Fietkau PA_in[i - 1] + (PA_in[i - 1] -
664717f6bedSFelix Fietkau PA_in[i - 2]);
665717f6bedSFelix Fietkau }
666717f6bedSFelix Fietkau
667717f6bedSFelix Fietkau PA_in[i] = (PA_in[i] < 1400) ? PA_in[i] : 1400;
668717f6bedSFelix Fietkau }
669717f6bedSFelix Fietkau
670717f6bedSFelix Fietkau beta_raw = 0;
671717f6bedSFelix Fietkau alpha_raw = 0;
672717f6bedSFelix Fietkau
673717f6bedSFelix Fietkau for (i = 0; i <= L; i++) {
674717f6bedSFelix Fietkau int theta_tilde =
675717f6bedSFelix Fietkau ((theta[i + I] << M) + y_est[i + I]) / y_est[i + I];
676717f6bedSFelix Fietkau theta_tilde =
677717f6bedSFelix Fietkau ((theta_tilde << M) + y_est[i + I]) / y_est[i + I];
678717f6bedSFelix Fietkau theta_tilde =
679717f6bedSFelix Fietkau ((theta_tilde << M) + y_est[i + I]) / y_est[i + I];
680717f6bedSFelix Fietkau beta_raw = beta_raw + B1_tmp[i] * theta_tilde;
681717f6bedSFelix Fietkau alpha_raw = alpha_raw + B2_tmp[i] * theta_tilde;
682717f6bedSFelix Fietkau }
683717f6bedSFelix Fietkau
684717f6bedSFelix Fietkau Q_beta = find_proper_scale(find_expn(abs(beta_raw)), 10);
685717f6bedSFelix Fietkau Q_alpha = find_proper_scale(find_expn(abs(alpha_raw)), 10);
686717f6bedSFelix Fietkau beta_raw = beta_raw / (1 << Q_beta);
687717f6bedSFelix Fietkau alpha_raw = alpha_raw / (1 << Q_alpha);
688717f6bedSFelix Fietkau
689717f6bedSFelix Fietkau alpha = (alpha_raw << 10) / scale_B;
690717f6bedSFelix Fietkau beta = (beta_raw << 10) / scale_B;
691717f6bedSFelix Fietkau order_1 = 3 * M - Q_x - Q_B1 - Q_beta + 10 + Q_scale_B + 5;
692717f6bedSFelix Fietkau order_2 = 3 * M - Q_x - Q_B2 - Q_alpha + 10 + Q_scale_B + 5;
693717f6bedSFelix Fietkau order1_5x = order_1 / 5;
694717f6bedSFelix Fietkau order2_3x = order_2 / 3;
695717f6bedSFelix Fietkau order1_5x_rem = order_1 - 5 * order1_5x;
696717f6bedSFelix Fietkau order2_3x_rem = order_2 - 3 * order2_3x;
697717f6bedSFelix Fietkau
698717f6bedSFelix Fietkau for (i = 0; i < PAPRD_TABLE_SZ; i++) {
699717f6bedSFelix Fietkau int PA_angle;
700717f6bedSFelix Fietkau
701717f6bedSFelix Fietkau /* pa_table[4] is calculated from PA_angle for i=5 */
702717f6bedSFelix Fietkau if (i == 4)
703717f6bedSFelix Fietkau continue;
704717f6bedSFelix Fietkau
705717f6bedSFelix Fietkau tmp = i * 32;
706717f6bedSFelix Fietkau if (beta > 0)
707717f6bedSFelix Fietkau y5 = (((beta * tmp - 64) >> 6) -
708717f6bedSFelix Fietkau (1 << order1_5x)) / (1 << order1_5x);
709717f6bedSFelix Fietkau else
710717f6bedSFelix Fietkau y5 = ((((beta * tmp - 64) >> 6) +
711717f6bedSFelix Fietkau (1 << order1_5x)) / (1 << order1_5x));
712717f6bedSFelix Fietkau
713717f6bedSFelix Fietkau y5 = (y5 * tmp) / (1 << order1_5x);
714717f6bedSFelix Fietkau y5 = (y5 * tmp) / (1 << order1_5x);
715717f6bedSFelix Fietkau y5 = (y5 * tmp) / (1 << order1_5x);
716717f6bedSFelix Fietkau y5 = (y5 * tmp) / (1 << order1_5x);
717717f6bedSFelix Fietkau y5 = y5 / (1 << order1_5x_rem);
718717f6bedSFelix Fietkau
719717f6bedSFelix Fietkau if (beta > 0)
720717f6bedSFelix Fietkau y3 = (alpha * tmp -
721717f6bedSFelix Fietkau (1 << order2_3x)) / (1 << order2_3x);
722717f6bedSFelix Fietkau else
723717f6bedSFelix Fietkau y3 = (alpha * tmp +
724717f6bedSFelix Fietkau (1 << order2_3x)) / (1 << order2_3x);
725717f6bedSFelix Fietkau y3 = (y3 * tmp) / (1 << order2_3x);
726717f6bedSFelix Fietkau y3 = (y3 * tmp) / (1 << order2_3x);
727717f6bedSFelix Fietkau y3 = y3 / (1 << order2_3x_rem);
728717f6bedSFelix Fietkau
729717f6bedSFelix Fietkau if (i < 4) {
730717f6bedSFelix Fietkau PA_angle = 0;
731717f6bedSFelix Fietkau } else {
732717f6bedSFelix Fietkau PA_angle = y5 + y3;
733717f6bedSFelix Fietkau if (PA_angle < -150)
734717f6bedSFelix Fietkau PA_angle = -150;
735717f6bedSFelix Fietkau else if (PA_angle > 150)
736717f6bedSFelix Fietkau PA_angle = 150;
737717f6bedSFelix Fietkau }
738717f6bedSFelix Fietkau
739717f6bedSFelix Fietkau pa_table[i] = ((PA_in[i] & 0x7ff) << 11) + (PA_angle & 0x7ff);
740717f6bedSFelix Fietkau if (i == 5) {
741717f6bedSFelix Fietkau PA_angle = (PA_angle + 2) >> 1;
742717f6bedSFelix Fietkau pa_table[i - 1] = ((PA_in[i - 1] & 0x7ff) << 11) +
743717f6bedSFelix Fietkau (PA_angle & 0x7ff);
744717f6bedSFelix Fietkau }
745717f6bedSFelix Fietkau }
746717f6bedSFelix Fietkau
747717f6bedSFelix Fietkau *gain = G_fxp;
748717f6bedSFelix Fietkau return true;
749717f6bedSFelix Fietkau }
750717f6bedSFelix Fietkau
ar9003_paprd_populate_single_table(struct ath_hw * ah,struct ath9k_hw_cal_data * caldata,int chain)751717f6bedSFelix Fietkau void ar9003_paprd_populate_single_table(struct ath_hw *ah,
75220bd2a09SFelix Fietkau struct ath9k_hw_cal_data *caldata,
75320bd2a09SFelix Fietkau int chain)
754717f6bedSFelix Fietkau {
75520bd2a09SFelix Fietkau u32 *paprd_table_val = caldata->pa_table[chain];
75620bd2a09SFelix Fietkau u32 small_signal_gain = caldata->small_signal_gain[chain];
7571bf38661SFelix Fietkau u32 training_power = ah->paprd_training_power;
758717f6bedSFelix Fietkau u32 reg = 0;
759717f6bedSFelix Fietkau int i;
760717f6bedSFelix Fietkau
761717f6bedSFelix Fietkau if (chain == 0)
762717f6bedSFelix Fietkau reg = AR_PHY_PAPRD_MEM_TAB_B0;
763717f6bedSFelix Fietkau else if (chain == 1)
764717f6bedSFelix Fietkau reg = AR_PHY_PAPRD_MEM_TAB_B1;
765717f6bedSFelix Fietkau else if (chain == 2)
766717f6bedSFelix Fietkau reg = AR_PHY_PAPRD_MEM_TAB_B2;
767717f6bedSFelix Fietkau
768717f6bedSFelix Fietkau for (i = 0; i < PAPRD_TABLE_SZ; i++) {
769717f6bedSFelix Fietkau REG_WRITE(ah, reg, paprd_table_val[i]);
770717f6bedSFelix Fietkau reg = reg + 4;
771717f6bedSFelix Fietkau }
772717f6bedSFelix Fietkau
773717f6bedSFelix Fietkau if (chain == 0)
774717f6bedSFelix Fietkau reg = AR_PHY_PA_GAIN123_B0;
775717f6bedSFelix Fietkau else if (chain == 1)
776717f6bedSFelix Fietkau reg = AR_PHY_PA_GAIN123_B1;
777717f6bedSFelix Fietkau else
778717f6bedSFelix Fietkau reg = AR_PHY_PA_GAIN123_B2;
779717f6bedSFelix Fietkau
780717f6bedSFelix Fietkau REG_RMW_FIELD(ah, reg, AR_PHY_PA_GAIN123_PA_GAIN1, small_signal_gain);
781717f6bedSFelix Fietkau
782717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_CTRL1_B0,
783717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL1_PAPRD_POWER_AT_AM2AM_CAL,
784717f6bedSFelix Fietkau training_power);
785717f6bedSFelix Fietkau
78611441fb8SVasanthakumar Thiagarajan if (ah->caps.tx_chainmask & BIT(1))
787717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_CTRL1_B1,
788717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL1_PAPRD_POWER_AT_AM2AM_CAL,
789717f6bedSFelix Fietkau training_power);
790717f6bedSFelix Fietkau
79111441fb8SVasanthakumar Thiagarajan if (ah->caps.tx_chainmask & BIT(2))
7922577c6e8SSenthil Balasubramanian /* val AR_PHY_PAPRD_CTRL1_PAPRD_POWER_AT_AM2AM_CAL correct? */
793717f6bedSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_PAPRD_CTRL1_B2,
794717f6bedSFelix Fietkau AR_PHY_PAPRD_CTRL1_PAPRD_POWER_AT_AM2AM_CAL,
795717f6bedSFelix Fietkau training_power);
796717f6bedSFelix Fietkau }
797717f6bedSFelix Fietkau EXPORT_SYMBOL(ar9003_paprd_populate_single_table);
798717f6bedSFelix Fietkau
ar9003_paprd_setup_gain_table(struct ath_hw * ah,int chain)79936d2943bSSujith Manoharan void ar9003_paprd_setup_gain_table(struct ath_hw *ah, int chain)
800717f6bedSFelix Fietkau {
801717f6bedSFelix Fietkau unsigned int i, desired_gain, gain_index;
8021bf38661SFelix Fietkau unsigned int train_power = ah->paprd_training_power;
803717f6bedSFelix Fietkau
804717f6bedSFelix Fietkau desired_gain = ar9003_get_desired_gain(ah, chain, train_power);
805717f6bedSFelix Fietkau
806717f6bedSFelix Fietkau gain_index = 0;
80705b60d4eSMohammed Shafi Shajakhan for (i = 0; i < PAPRD_GAIN_TABLE_ENTRIES; i++) {
808717f6bedSFelix Fietkau if (ah->paprd_gain_table_index[i] >= desired_gain)
809717f6bedSFelix Fietkau break;
810717f6bedSFelix Fietkau gain_index++;
811717f6bedSFelix Fietkau }
812717f6bedSFelix Fietkau
813717f6bedSFelix Fietkau ar9003_tx_force_gain(ah, gain_index);
814717f6bedSFelix Fietkau
815*b3a663f0SWenli Looi REG_CLR_BIT(ah, AR_PHY_PAPRD_TRAINER_STAT1(ah),
816717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_TRAIN_DONE);
817717f6bedSFelix Fietkau }
818717f6bedSFelix Fietkau EXPORT_SYMBOL(ar9003_paprd_setup_gain_table);
819717f6bedSFelix Fietkau
ar9003_paprd_retrain_pa_in(struct ath_hw * ah,struct ath9k_hw_cal_data * caldata,int chain)820381c726cSFelix Fietkau static bool ar9003_paprd_retrain_pa_in(struct ath_hw *ah,
821381c726cSFelix Fietkau struct ath9k_hw_cal_data *caldata,
822381c726cSFelix Fietkau int chain)
823381c726cSFelix Fietkau {
824381c726cSFelix Fietkau u32 *pa_in = caldata->pa_table[chain];
825381c726cSFelix Fietkau int capdiv_offset, quick_drop_offset;
826381c726cSFelix Fietkau int capdiv2g, quick_drop;
827381c726cSFelix Fietkau int count = 0;
828381c726cSFelix Fietkau int i;
829381c726cSFelix Fietkau
830381c726cSFelix Fietkau if (!AR_SREV_9485(ah) && !AR_SREV_9330(ah))
831381c726cSFelix Fietkau return false;
832381c726cSFelix Fietkau
833381c726cSFelix Fietkau capdiv2g = REG_READ_FIELD(ah, AR_PHY_65NM_CH0_TXRF3,
834381c726cSFelix Fietkau AR_PHY_65NM_CH0_TXRF3_CAPDIV2G);
835381c726cSFelix Fietkau
836*b3a663f0SWenli Looi quick_drop = REG_READ_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3(ah),
837381c726cSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP);
838381c726cSFelix Fietkau
839381c726cSFelix Fietkau if (quick_drop)
840381c726cSFelix Fietkau quick_drop -= 0x40;
841381c726cSFelix Fietkau
842381c726cSFelix Fietkau for (i = 0; i < NUM_BIN + 1; i++) {
843381c726cSFelix Fietkau if (pa_in[i] == 1400)
844381c726cSFelix Fietkau count++;
845381c726cSFelix Fietkau }
846381c726cSFelix Fietkau
847381c726cSFelix Fietkau if (AR_SREV_9485(ah)) {
848381c726cSFelix Fietkau if (pa_in[23] < 800) {
849381c726cSFelix Fietkau capdiv_offset = (int)((1000 - pa_in[23] + 75) / 150);
850381c726cSFelix Fietkau capdiv2g += capdiv_offset;
851381c726cSFelix Fietkau if (capdiv2g > 7) {
852381c726cSFelix Fietkau capdiv2g = 7;
853381c726cSFelix Fietkau if (pa_in[23] < 600) {
854381c726cSFelix Fietkau quick_drop++;
855381c726cSFelix Fietkau if (quick_drop > 0)
856381c726cSFelix Fietkau quick_drop = 0;
857381c726cSFelix Fietkau }
858381c726cSFelix Fietkau }
859381c726cSFelix Fietkau } else if (pa_in[23] == 1400) {
860381c726cSFelix Fietkau quick_drop_offset = min_t(int, count / 3, 2);
861381c726cSFelix Fietkau quick_drop += quick_drop_offset;
862381c726cSFelix Fietkau capdiv2g += quick_drop_offset / 2;
863381c726cSFelix Fietkau
864381c726cSFelix Fietkau if (capdiv2g > 7)
865381c726cSFelix Fietkau capdiv2g = 7;
866381c726cSFelix Fietkau
867381c726cSFelix Fietkau if (quick_drop > 0) {
868381c726cSFelix Fietkau quick_drop = 0;
869381c726cSFelix Fietkau capdiv2g -= quick_drop_offset;
870381c726cSFelix Fietkau if (capdiv2g < 0)
871381c726cSFelix Fietkau capdiv2g = 0;
872381c726cSFelix Fietkau }
873381c726cSFelix Fietkau } else {
874381c726cSFelix Fietkau return false;
875381c726cSFelix Fietkau }
876381c726cSFelix Fietkau } else if (AR_SREV_9330(ah)) {
877381c726cSFelix Fietkau if (pa_in[23] < 1000) {
878381c726cSFelix Fietkau capdiv_offset = (1000 - pa_in[23]) / 100;
879381c726cSFelix Fietkau capdiv2g += capdiv_offset;
880381c726cSFelix Fietkau if (capdiv_offset > 3) {
881381c726cSFelix Fietkau capdiv_offset = 1;
882381c726cSFelix Fietkau quick_drop--;
883381c726cSFelix Fietkau }
884381c726cSFelix Fietkau
885381c726cSFelix Fietkau capdiv2g += capdiv_offset;
886381c726cSFelix Fietkau if (capdiv2g > 6)
887381c726cSFelix Fietkau capdiv2g = 6;
888381c726cSFelix Fietkau if (quick_drop < -4)
889381c726cSFelix Fietkau quick_drop = -4;
890381c726cSFelix Fietkau } else if (pa_in[23] == 1400) {
891381c726cSFelix Fietkau if (count > 3) {
892381c726cSFelix Fietkau quick_drop++;
893381c726cSFelix Fietkau capdiv2g -= count / 4;
894381c726cSFelix Fietkau if (quick_drop > -2)
895381c726cSFelix Fietkau quick_drop = -2;
896381c726cSFelix Fietkau } else {
897381c726cSFelix Fietkau capdiv2g--;
898381c726cSFelix Fietkau }
899381c726cSFelix Fietkau
900381c726cSFelix Fietkau if (capdiv2g < 0)
901381c726cSFelix Fietkau capdiv2g = 0;
902381c726cSFelix Fietkau } else {
903381c726cSFelix Fietkau return false;
904381c726cSFelix Fietkau }
905381c726cSFelix Fietkau }
906381c726cSFelix Fietkau
907381c726cSFelix Fietkau REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_TXRF3,
908381c726cSFelix Fietkau AR_PHY_65NM_CH0_TXRF3_CAPDIV2G, capdiv2g);
909*b3a663f0SWenli Looi REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3(ah),
910381c726cSFelix Fietkau AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP,
911381c726cSFelix Fietkau quick_drop);
912381c726cSFelix Fietkau
913381c726cSFelix Fietkau return true;
914381c726cSFelix Fietkau }
915381c726cSFelix Fietkau
ar9003_paprd_create_curve(struct ath_hw * ah,struct ath9k_hw_cal_data * caldata,int chain)91620bd2a09SFelix Fietkau int ar9003_paprd_create_curve(struct ath_hw *ah,
91720bd2a09SFelix Fietkau struct ath9k_hw_cal_data *caldata, int chain)
918717f6bedSFelix Fietkau {
91920bd2a09SFelix Fietkau u16 *small_signal_gain = &caldata->small_signal_gain[chain];
92020bd2a09SFelix Fietkau u32 *pa_table = caldata->pa_table[chain];
921717f6bedSFelix Fietkau u32 *data_L, *data_U;
922717f6bedSFelix Fietkau int i, status = 0;
923717f6bedSFelix Fietkau u32 *buf;
924717f6bedSFelix Fietkau u32 reg;
925717f6bedSFelix Fietkau
92620bd2a09SFelix Fietkau memset(caldata->pa_table[chain], 0, sizeof(caldata->pa_table[chain]));
927717f6bedSFelix Fietkau
9286da2ec56SKees Cook buf = kmalloc_array(2 * 48, sizeof(u32), GFP_KERNEL);
929717f6bedSFelix Fietkau if (!buf)
930717f6bedSFelix Fietkau return -ENOMEM;
931717f6bedSFelix Fietkau
932717f6bedSFelix Fietkau data_L = &buf[0];
933717f6bedSFelix Fietkau data_U = &buf[48];
934717f6bedSFelix Fietkau
935*b3a663f0SWenli Looi REG_CLR_BIT(ah, AR_PHY_CHAN_INFO_MEMORY(ah),
936717f6bedSFelix Fietkau AR_PHY_CHAN_INFO_MEMORY_CHANINFOMEM_S2_READ);
937717f6bedSFelix Fietkau
938717f6bedSFelix Fietkau reg = AR_PHY_CHAN_INFO_TAB_0;
939717f6bedSFelix Fietkau for (i = 0; i < 48; i++)
940717f6bedSFelix Fietkau data_L[i] = REG_READ(ah, reg + (i << 2));
941717f6bedSFelix Fietkau
942*b3a663f0SWenli Looi REG_SET_BIT(ah, AR_PHY_CHAN_INFO_MEMORY(ah),
943717f6bedSFelix Fietkau AR_PHY_CHAN_INFO_MEMORY_CHANINFOMEM_S2_READ);
944717f6bedSFelix Fietkau
945717f6bedSFelix Fietkau for (i = 0; i < 48; i++)
946717f6bedSFelix Fietkau data_U[i] = REG_READ(ah, reg + (i << 2));
947717f6bedSFelix Fietkau
948717f6bedSFelix Fietkau if (!create_pa_curve(data_L, data_U, pa_table, small_signal_gain))
949717f6bedSFelix Fietkau status = -2;
950717f6bedSFelix Fietkau
951381c726cSFelix Fietkau if (ar9003_paprd_retrain_pa_in(ah, caldata, chain))
952381c726cSFelix Fietkau status = -EINPROGRESS;
953381c726cSFelix Fietkau
954*b3a663f0SWenli Looi REG_CLR_BIT(ah, AR_PHY_PAPRD_TRAINER_STAT1(ah),
955717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_TRAIN_DONE);
956717f6bedSFelix Fietkau
957717f6bedSFelix Fietkau kfree(buf);
958717f6bedSFelix Fietkau
959717f6bedSFelix Fietkau return status;
960717f6bedSFelix Fietkau }
961717f6bedSFelix Fietkau EXPORT_SYMBOL(ar9003_paprd_create_curve);
962717f6bedSFelix Fietkau
ar9003_paprd_init_table(struct ath_hw * ah)963717f6bedSFelix Fietkau int ar9003_paprd_init_table(struct ath_hw *ah)
964717f6bedSFelix Fietkau {
9651bf38661SFelix Fietkau int ret;
9661bf38661SFelix Fietkau
9671bf38661SFelix Fietkau ret = ar9003_paprd_setup_single_table(ah);
9681bf38661SFelix Fietkau if (ret < 0)
9691bf38661SFelix Fietkau return ret;
9701bf38661SFelix Fietkau
971717f6bedSFelix Fietkau ar9003_paprd_get_gain_table(ah);
972717f6bedSFelix Fietkau return 0;
973717f6bedSFelix Fietkau }
974717f6bedSFelix Fietkau EXPORT_SYMBOL(ar9003_paprd_init_table);
975717f6bedSFelix Fietkau
ar9003_paprd_is_done(struct ath_hw * ah)976717f6bedSFelix Fietkau bool ar9003_paprd_is_done(struct ath_hw *ah)
977717f6bedSFelix Fietkau {
9780e44d48cSMohammed Shafi Shajakhan int paprd_done, agc2_pwr;
979d882d242SSujith Manoharan
980*b3a663f0SWenli Looi paprd_done = REG_READ_FIELD(ah, AR_PHY_PAPRD_TRAINER_STAT1(ah),
981717f6bedSFelix Fietkau AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_TRAIN_DONE);
9820e44d48cSMohammed Shafi Shajakhan
983d882d242SSujith Manoharan if (AR_SREV_9485(ah))
984d882d242SSujith Manoharan goto exit;
985d882d242SSujith Manoharan
9860e44d48cSMohammed Shafi Shajakhan if (paprd_done == 0x1) {
987*b3a663f0SWenli Looi agc2_pwr = REG_READ_FIELD(ah, AR_PHY_PAPRD_TRAINER_STAT1(ah),
9880e44d48cSMohammed Shafi Shajakhan AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_AGC2_PWR);
9890e44d48cSMohammed Shafi Shajakhan
990d2182b69SJoe Perches ath_dbg(ath9k_hw_common(ah), CALIBRATE,
9910e44d48cSMohammed Shafi Shajakhan "AGC2_PWR = 0x%x training done = 0x%x\n",
9920e44d48cSMohammed Shafi Shajakhan agc2_pwr, paprd_done);
9930e44d48cSMohammed Shafi Shajakhan /*
9940e44d48cSMohammed Shafi Shajakhan * agc2_pwr range should not be less than 'IDEAL_AGC2_PWR_CHANGE'
9950e44d48cSMohammed Shafi Shajakhan * when the training is completely done, otherwise retraining is
9960e44d48cSMohammed Shafi Shajakhan * done to make sure the value is in ideal range
9970e44d48cSMohammed Shafi Shajakhan */
9980e44d48cSMohammed Shafi Shajakhan if (agc2_pwr <= PAPRD_IDEAL_AGC2_PWR_RANGE)
9990e44d48cSMohammed Shafi Shajakhan paprd_done = 0;
10000e44d48cSMohammed Shafi Shajakhan }
1001d882d242SSujith Manoharan exit:
10020e44d48cSMohammed Shafi Shajakhan return !!paprd_done;
1003717f6bedSFelix Fietkau }
1004717f6bedSFelix Fietkau EXPORT_SYMBOL(ar9003_paprd_is_done);
10050f21ee8dSSujith Manoharan
ar9003_is_paprd_enabled(struct ath_hw * ah)10060f21ee8dSSujith Manoharan bool ar9003_is_paprd_enabled(struct ath_hw *ah)
10070f21ee8dSSujith Manoharan {
10080f21ee8dSSujith Manoharan if ((ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && ah->config.enable_paprd)
10090f21ee8dSSujith Manoharan return true;
10100f21ee8dSSujith Manoharan
10110f21ee8dSSujith Manoharan return false;
10120f21ee8dSSujith Manoharan }
10130f21ee8dSSujith Manoharan EXPORT_SYMBOL(ar9003_is_paprd_enabled);
1014