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ath9k_hw: clean up tx completion interrupt handling
[deliverable/linux.git] / drivers / net / wireless / ath / ath9k / hw.c
CommitLineData
f078f209 1/*
5b68138e 2 * Copyright (c) 2008-2011 Atheros Communications Inc.
f078f209
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 <linux/io.h>
5a0e3ad6 18#include <linux/slab.h>
9d9779e7 19#include <linux/module.h>
f078f209
LR		 20#include <asm/unaligned.h>
21
af03abec 22#include "hw.h"
d70357d5 23#include "hw-ops.h"
cfe8cba9 24#include "rc.h"
b622a720 25#include "ar9003_mac.h"
f4701b5a 26#include "ar9003_mci.h"
f078f209 27
cbe61d8a 28static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
f078f209 29
7322fd19
LR		 30MODULE_AUTHOR("Atheros Communications");
31MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
32MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
33MODULE_LICENSE("Dual BSD/GPL");
34
35static int __init ath9k_init(void)
36{
37 return 0;
38}
39module_init(ath9k_init);
40
41static void __exit ath9k_exit(void)
42{
43 return;
44}
45module_exit(ath9k_exit);
46
d70357d5
LR		 47/* Private hardware callbacks */
48
49static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
50{
51 ath9k_hw_private_ops(ah)->init_cal_settings(ah);
52}
53
54static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
55{
56 ath9k_hw_private_ops(ah)->init_mode_regs(ah);
57}
58
64773964
LR		 59static u32 ath9k_hw_compute_pll_control(struct ath_hw *ah,
60 struct ath9k_channel *chan)
61{
62 return ath9k_hw_private_ops(ah)->compute_pll_control(ah, chan);
63}
64
991312d8
LR		 65static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
66{
67 if (!ath9k_hw_private_ops(ah)->init_mode_gain_regs)
68 return;
69
70 ath9k_hw_private_ops(ah)->init_mode_gain_regs(ah);
71}
72
e36b27af
LR		 73static void ath9k_hw_ani_cache_ini_regs(struct ath_hw *ah)
74{
75 /* You will not have this callback if using the old ANI */
76 if (!ath9k_hw_private_ops(ah)->ani_cache_ini_regs)
77 return;
78
79 ath9k_hw_private_ops(ah)->ani_cache_ini_regs(ah);
80}
81
f1dc5600
S		 82/********************/
83/* Helper Functions */
84/********************/
f078f209 85
dfdac8ac 86static void ath9k_hw_set_clockrate(struct ath_hw *ah)
f1dc5600 87{
b002a4a9 88 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
dfdac8ac
FF		 89 struct ath_common *common = ath9k_hw_common(ah);
90 unsigned int clockrate;
cbe61d8a 91
087b6ff6
FF		 92 /* AR9287 v1.3+ uses async FIFO and runs the MAC at 117 MHz */
93 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah))
94 clockrate = 117;
95 else if (!ah->curchan) /* should really check for CCK instead */
dfdac8ac
FF		 96 clockrate = ATH9K_CLOCK_RATE_CCK;
97 else if (conf->channel->band == IEEE80211_BAND_2GHZ)
98 clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
99 else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
100 clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
e5553724 101 else
dfdac8ac
FF		 102 clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
103
104 if (conf_is_ht40(conf))
105 clockrate *= 2;
106
906c7205
FF		 107 if (ah->curchan) {
108 if (IS_CHAN_HALF_RATE(ah->curchan))
109 clockrate /= 2;
110 if (IS_CHAN_QUARTER_RATE(ah->curchan))
111 clockrate /= 4;
112 }
113
dfdac8ac 114 common->clockrate = clockrate;
f1dc5600
S		 115}
116
cbe61d8a 117static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
f1dc5600 118{
dfdac8ac 119 struct ath_common *common = ath9k_hw_common(ah);
cbe61d8a 120
dfdac8ac 121 return usecs * common->clockrate;
f1dc5600 122}
f078f209 123
0caa7b14 124bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
f078f209
LR		 125{
126 int i;
127
0caa7b14
S		 128 BUG_ON(timeout < AH_TIME_QUANTUM);
129
130 for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
f078f209
LR		 131 if ((REG_READ(ah, reg) & mask) == val)
132 return true;
133
134 udelay(AH_TIME_QUANTUM);
135 }
04bd4638 136
d2182b69 137 ath_dbg(ath9k_hw_common(ah), ANY,
226afe68
JP		 138 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
139 timeout, reg, REG_READ(ah, reg), mask, val);
f078f209 140
f1dc5600 141 return false;
f078f209 142}
7322fd19 143EXPORT_SYMBOL(ath9k_hw_wait);
f078f209 144
a9b6b256
FF		 145void ath9k_hw_write_array(struct ath_hw *ah, struct ar5416IniArray *array,
146 int column, unsigned int *writecnt)
147{
148 int r;
149
150 ENABLE_REGWRITE_BUFFER(ah);
151 for (r = 0; r < array->ia_rows; r++) {
152 REG_WRITE(ah, INI_RA(array, r, 0),
153 INI_RA(array, r, column));
154 DO_DELAY(*writecnt);
155 }
156 REGWRITE_BUFFER_FLUSH(ah);
157}
158
f078f209
LR		 159u32 ath9k_hw_reverse_bits(u32 val, u32 n)
160{
161 u32 retval;
162 int i;
163
164 for (i = 0, retval = 0; i < n; i++) {
165 retval = (retval << 1) | (val & 1);
166 val >>= 1;
167 }
168 return retval;
169}
170
cbe61d8a 171u16 ath9k_hw_computetxtime(struct ath_hw *ah,
545750d3 172 u8 phy, int kbps,
f1dc5600
S		 173 u32 frameLen, u16 rateix,
174 bool shortPreamble)
f078f209 175{
f1dc5600 176 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
f078f209 177
f1dc5600
S		 178 if (kbps == 0)
179 return 0;
f078f209 180
545750d3 181 switch (phy) {
46d14a58 182 case WLAN_RC_PHY_CCK:
f1dc5600 183 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
545750d3 184 if (shortPreamble)
f1dc5600
S		 185 phyTime >>= 1;
186 numBits = frameLen << 3;
187 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
188 break;
46d14a58 189 case WLAN_RC_PHY_OFDM:
2660b81a 190 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
f1dc5600
S		 191 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
192 numBits = OFDM_PLCP_BITS + (frameLen << 3);
193 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
194 txTime = OFDM_SIFS_TIME_QUARTER
195 + OFDM_PREAMBLE_TIME_QUARTER
196 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
2660b81a
S		 197 } else if (ah->curchan &&
198 IS_CHAN_HALF_RATE(ah->curchan)) {
f1dc5600
S		 199 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
200 numBits = OFDM_PLCP_BITS + (frameLen << 3);
201 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
202 txTime = OFDM_SIFS_TIME_HALF +
203 OFDM_PREAMBLE_TIME_HALF
204 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
205 } else {
206 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
207 numBits = OFDM_PLCP_BITS + (frameLen << 3);
208 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
209 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
210 + (numSymbols * OFDM_SYMBOL_TIME);
211 }
212 break;
213 default:
3800276a
JP		 214 ath_err(ath9k_hw_common(ah),
215 "Unknown phy %u (rate ix %u)\n", phy, rateix);
f1dc5600
S		 216 txTime = 0;
217 break;
218 }
f078f209 219
f1dc5600
S		 220 return txTime;
221}
7322fd19 222EXPORT_SYMBOL(ath9k_hw_computetxtime);
f078f209 223
cbe61d8a 224void ath9k_hw_get_channel_centers(struct ath_hw *ah,
f1dc5600
S		 225 struct ath9k_channel *chan,
226 struct chan_centers *centers)
f078f209 227{
f1dc5600 228 int8_t extoff;
f078f209 229
f1dc5600
S		 230 if (!IS_CHAN_HT40(chan)) {
231 centers->ctl_center = centers->ext_center =
232 centers->synth_center = chan->channel;
233 return;
f078f209 234 }
f078f209 235
f1dc5600
S		 236 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
237 (chan->chanmode == CHANNEL_G_HT40PLUS)) {
238 centers->synth_center =
239 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
240 extoff = 1;
241 } else {
242 centers->synth_center =
243 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
244 extoff = -1;
245 }
f078f209 246
f1dc5600
S		 247 centers->ctl_center =
248 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
6420014c 249 /* 25 MHz spacing is supported by hw but not on upper layers */
f1dc5600 250 centers->ext_center =
6420014c 251 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
f078f209
LR		 252}
253
f1dc5600
S		 254/******************/
255/* Chip Revisions */
256/******************/
257
cbe61d8a 258static void ath9k_hw_read_revisions(struct ath_hw *ah)
f078f209 259{
f1dc5600 260 u32 val;
f078f209 261
ecb1d385
VT		 262 switch (ah->hw_version.devid) {
263 case AR5416_AR9100_DEVID:
264 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
265 break;
3762561a
GJ		 266 case AR9300_DEVID_AR9330:
267 ah->hw_version.macVersion = AR_SREV_VERSION_9330;
268 if (ah->get_mac_revision) {
269 ah->hw_version.macRev = ah->get_mac_revision();
270 } else {
271 val = REG_READ(ah, AR_SREV);
272 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
273 }
274 return;
ecb1d385
VT		 275 case AR9300_DEVID_AR9340:
276 ah->hw_version.macVersion = AR_SREV_VERSION_9340;
277 val = REG_READ(ah, AR_SREV);
278 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
279 return;
280 }
281
f1dc5600 282 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
f078f209 283
f1dc5600
S		 284 if (val == 0xFF) {
285 val = REG_READ(ah, AR_SREV);
d535a42a
S		 286 ah->hw_version.macVersion =
287 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
288 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
76ed94be 289
423e38e8 290 if (AR_SREV_9462(ah))
76ed94be
MSS		 291 ah->is_pciexpress = true;
292 else
293 ah->is_pciexpress = (val &
294 AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
f1dc5600
S		 295 } else {
296 if (!AR_SREV_9100(ah))
d535a42a 297 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
f078f209 298
d535a42a 299 ah->hw_version.macRev = val & AR_SREV_REVISION;
f078f209 300
d535a42a 301 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
2660b81a 302 ah->is_pciexpress = true;
f1dc5600 303 }
f078f209
LR		 304}
305
f1dc5600
S		 306/************************************/
307/* HW Attach, Detach, Init Routines */
308/************************************/
309
cbe61d8a 310static void ath9k_hw_disablepcie(struct ath_hw *ah)
f078f209 311{
040b74f7 312 if (!AR_SREV_5416(ah))
f1dc5600 313 return;
f078f209 314
f1dc5600
S		 315 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
316 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
317 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
318 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
319 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
320 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
321 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
322 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
323 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
f078f209 324
f1dc5600 325 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
f078f209
LR		 326}
327
d4930086
SG		 328static void ath9k_hw_aspm_init(struct ath_hw *ah)
329{
330 struct ath_common *common = ath9k_hw_common(ah);
331
332 if (common->bus_ops->aspm_init)
333 common->bus_ops->aspm_init(common);
334}
335
1f3f0618 336/* This should work for all families including legacy */
cbe61d8a 337static bool ath9k_hw_chip_test(struct ath_hw *ah)
f078f209 338{
c46917bb 339 struct ath_common *common = ath9k_hw_common(ah);
1f3f0618 340 u32 regAddr[2] = { AR_STA_ID0 };
f1dc5600 341 u32 regHold[2];
07b2fa5a
JP		 342 static const u32 patternData[4] = {
343 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999
344 };
1f3f0618 345 int i, j, loop_max;
f078f209 346
1f3f0618
SB		 347 if (!AR_SREV_9300_20_OR_LATER(ah)) {
348 loop_max = 2;
349 regAddr[1] = AR_PHY_BASE + (8 << 2);
350 } else
351 loop_max = 1;
352
353 for (i = 0; i < loop_max; i++) {
f1dc5600
S		 354 u32 addr = regAddr[i];
355 u32 wrData, rdData;
f078f209 356
f1dc5600
S		 357 regHold[i] = REG_READ(ah, addr);
358 for (j = 0; j < 0x100; j++) {
359 wrData = (j << 16) | j;
360 REG_WRITE(ah, addr, wrData);
361 rdData = REG_READ(ah, addr);
362 if (rdData != wrData) {
3800276a
JP		 363 ath_err(common,
364 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
365 addr, wrData, rdData);
f1dc5600
S		 366 return false;
367 }
368 }
369 for (j = 0; j < 4; j++) {
370 wrData = patternData[j];
371 REG_WRITE(ah, addr, wrData);
372 rdData = REG_READ(ah, addr);
373 if (wrData != rdData) {
3800276a
JP		 374 ath_err(common,
375 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
376 addr, wrData, rdData);
f1dc5600
S		 377 return false;
378 }
f078f209 379 }
f1dc5600 380 REG_WRITE(ah, regAddr[i], regHold[i]);
f078f209 381 }
f1dc5600 382 udelay(100);
cbe61d8a 383
f078f209
LR		 384 return true;
385}
386
b8b0f377 387static void ath9k_hw_init_config(struct ath_hw *ah)
f1dc5600
S		 388{
389 int i;
f078f209 390
2660b81a
S		 391 ah->config.dma_beacon_response_time = 2;
392 ah->config.sw_beacon_response_time = 10;
393 ah->config.additional_swba_backoff = 0;
394 ah->config.ack_6mb = 0x0;
395 ah->config.cwm_ignore_extcca = 0;
2660b81a 396 ah->config.pcie_clock_req = 0;
2660b81a
S		 397 ah->config.pcie_waen = 0;
398 ah->config.analog_shiftreg = 1;
03c72518 399 ah->config.enable_ani = true;
f078f209 400
f1dc5600 401 for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
2660b81a
S		 402 ah->config.spurchans[i][0] = AR_NO_SPUR;
403 ah->config.spurchans[i][1] = AR_NO_SPUR;
f078f209
LR		 404 }
405
6f481010
LR		 406 /* PAPRD needs some more work to be enabled */
407 ah->config.paprd_disable = 1;
408
0ce024cb 409 ah->config.rx_intr_mitigation = true;
6a0ec30a 410 ah->config.pcieSerDesWrite = true;
6158425b
LR		 411
412 /*
413 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
414 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
415 * This means we use it for all AR5416 devices, and the few
416 * minor PCI AR9280 devices out there.
417 *
418 * Serialization is required because these devices do not handle
419 * well the case of two concurrent reads/writes due to the latency
420 * involved. During one read/write another read/write can be issued
421 * on another CPU while the previous read/write may still be working
422 * on our hardware, if we hit this case the hardware poops in a loop.
423 * We prevent this by serializing reads and writes.
424 *
425 * This issue is not present on PCI-Express devices or pre-AR5416
426 * devices (legacy, 802.11abg).
427 */
428 if (num_possible_cpus() > 1)
2d6a5e95 429 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
f078f209
LR		 430}
431
50aca25b 432static void ath9k_hw_init_defaults(struct ath_hw *ah)
f078f209 433{
608b88cb
LR		 434 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
435
436 regulatory->country_code = CTRY_DEFAULT;
437 regulatory->power_limit = MAX_RATE_POWER;
608b88cb 438
d535a42a 439 ah->hw_version.magic = AR5416_MAGIC;
d535a42a 440 ah->hw_version.subvendorid = 0;
f078f209 441
2660b81a 442 ah->atim_window = 0;
16f2411f
FF		 443 ah->sta_id1_defaults =
444 AR_STA_ID1_CRPT_MIC_ENABLE |
445 AR_STA_ID1_MCAST_KSRCH;
f171760c
FF		 446 if (AR_SREV_9100(ah))
447 ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX;
2660b81a 448 ah->enable_32kHz_clock = DONT_USE_32KHZ;
e3f2acc7 449 ah->slottime = ATH9K_SLOT_TIME_9;
2660b81a 450 ah->globaltxtimeout = (u32) -1;
cbdec975 451 ah->power_mode = ATH9K_PM_UNDEFINED;
f078f209
LR		 452}
453
cbe61d8a 454static int ath9k_hw_init_macaddr(struct ath_hw *ah)
f078f209 455{
1510718d 456 struct ath_common *common = ath9k_hw_common(ah);
f078f209
LR		 457 u32 sum;
458 int i;
459 u16 eeval;
07b2fa5a 460 static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
f078f209
LR		 461
462 sum = 0;
463 for (i = 0; i < 3; i++) {
49101676 464 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
f078f209 465 sum += eeval;
1510718d
LR		 466 common->macaddr[2 * i] = eeval >> 8;
467 common->macaddr[2 * i + 1] = eeval & 0xff;
f078f209 468 }
d8baa939 469 if (sum == 0 || sum == 0xffff * 3)
f078f209 470 return -EADDRNOTAVAIL;
f078f209
LR		 471
472 return 0;
473}
474
f637cfd6 475static int ath9k_hw_post_init(struct ath_hw *ah)
f078f209 476{
6cae913d 477 struct ath_common *common = ath9k_hw_common(ah);
f1dc5600 478 int ecode;
f078f209 479
6cae913d 480 if (common->bus_ops->ath_bus_type != ATH_USB) {
527d485f
S		 481 if (!ath9k_hw_chip_test(ah))
482 return -ENODEV;
483 }
f078f209 484
ebd5a14a
LR		 485 if (!AR_SREV_9300_20_OR_LATER(ah)) {
486 ecode = ar9002_hw_rf_claim(ah);
487 if (ecode != 0)
488 return ecode;
489 }
f078f209 490
f637cfd6 491 ecode = ath9k_hw_eeprom_init(ah);
f1dc5600
S		 492 if (ecode != 0)
493 return ecode;
7d01b221 494
d2182b69 495 ath_dbg(ath9k_hw_common(ah), CONFIG, "Eeprom VER: %d, REV: %d\n",
226afe68
JP		 496 ah->eep_ops->get_eeprom_ver(ah),
497 ah->eep_ops->get_eeprom_rev(ah));
7d01b221 498
8fe65368
LR		 499 ecode = ath9k_hw_rf_alloc_ext_banks(ah);
500 if (ecode) {
3800276a
JP		 501 ath_err(ath9k_hw_common(ah),
502 "Failed allocating banks for external radio\n");
48a7c3df 503 ath9k_hw_rf_free_ext_banks(ah);
8fe65368 504 return ecode;
574d6b12 505 }
f078f209 506
4279425c 507 if (ah->config.enable_ani) {
f1dc5600 508 ath9k_hw_ani_setup(ah);
f637cfd6 509 ath9k_hw_ani_init(ah);
f078f209
LR		 510 }
511
f078f209
LR		 512 return 0;
513}
514
8525f280 515static void ath9k_hw_attach_ops(struct ath_hw *ah)
ee2bb460 516{
8525f280
LR		 517 if (AR_SREV_9300_20_OR_LATER(ah))
518 ar9003_hw_attach_ops(ah);
519 else
520 ar9002_hw_attach_ops(ah);
aa4058ae
LR		 521}
522
d70357d5
LR		 523/* Called for all hardware families */
524static int __ath9k_hw_init(struct ath_hw *ah)
aa4058ae 525{
c46917bb 526 struct ath_common *common = ath9k_hw_common(ah);
95fafca2 527 int r = 0;
aa4058ae 528
ac45c12d
SB		 529 ath9k_hw_read_revisions(ah);
530
0a8d7cb0
SB		 531 /*
532 * Read back AR_WA into a permanent copy and set bits 14 and 17.
533 * We need to do this to avoid RMW of this register. We cannot
534 * read the reg when chip is asleep.
535 */
536 ah->WARegVal = REG_READ(ah, AR_WA);
537 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
538 AR_WA_ASPM_TIMER_BASED_DISABLE);
539
aa4058ae 540 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
3800276a 541 ath_err(common, "Couldn't reset chip\n");
95fafca2 542 return -EIO;
aa4058ae
LR		 543 }
544
423e38e8 545 if (AR_SREV_9462(ah))
eec353c5
RM		 546 ah->WARegVal &= ~AR_WA_D3_L1_DISABLE;
547
bab1f62e
LR		 548 ath9k_hw_init_defaults(ah);
549 ath9k_hw_init_config(ah);
550
8525f280 551 ath9k_hw_attach_ops(ah);
d70357d5 552
9ecdef4b 553 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
3800276a 554 ath_err(common, "Couldn't wakeup chip\n");
95fafca2 555 return -EIO;
aa4058ae
LR		 556 }
557
558 if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
559 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
4c85ab11
JL		 560 ((AR_SREV_9160(ah) || AR_SREV_9280(ah)) &&
561 !ah->is_pciexpress)) {
aa4058ae
LR		 562 ah->config.serialize_regmode =
563 SER_REG_MODE_ON;
564 } else {
565 ah->config.serialize_regmode =
566 SER_REG_MODE_OFF;
567 }
568 }
569
d2182b69 570 ath_dbg(common, RESET, "serialize_regmode is %d\n",
aa4058ae
LR		 571 ah->config.serialize_regmode);
572
f4709fdf
LR		 573 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
574 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
575 else
576 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
577
6da5a720
FF		 578 switch (ah->hw_version.macVersion) {
579 case AR_SREV_VERSION_5416_PCI:
580 case AR_SREV_VERSION_5416_PCIE:
581 case AR_SREV_VERSION_9160:
582 case AR_SREV_VERSION_9100:
583 case AR_SREV_VERSION_9280:
584 case AR_SREV_VERSION_9285:
585 case AR_SREV_VERSION_9287:
586 case AR_SREV_VERSION_9271:
587 case AR_SREV_VERSION_9300:
2c8e5937 588 case AR_SREV_VERSION_9330:
6da5a720 589 case AR_SREV_VERSION_9485:
bca04689 590 case AR_SREV_VERSION_9340:
423e38e8 591 case AR_SREV_VERSION_9462:
6da5a720
FF		 592 break;
593 default:
3800276a
JP		 594 ath_err(common,
595 "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
596 ah->hw_version.macVersion, ah->hw_version.macRev);
95fafca2 597 return -EOPNOTSUPP;
aa4058ae
LR		 598 }
599
2c8e5937
GJ		 600 if (AR_SREV_9271(ah) || AR_SREV_9100(ah) || AR_SREV_9340(ah) ||
601 AR_SREV_9330(ah))
d7e7d229
LR		 602 ah->is_pciexpress = false;
603
aa4058ae 604 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
aa4058ae
LR		 605 ath9k_hw_init_cal_settings(ah);
606
607 ah->ani_function = ATH9K_ANI_ALL;
7a37081e 608 if (AR_SREV_9280_20_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah))
aa4058ae 609 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
e36b27af
LR		 610 if (!AR_SREV_9300_20_OR_LATER(ah))
611 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
aa4058ae 612
4f17c48e
NM		 613 /* disable ANI for 9340 */
614 if (AR_SREV_9340(ah))
4279425c
NM		 615 ah->config.enable_ani = false;
616
aa4058ae
LR		 617 ath9k_hw_init_mode_regs(ah);
618
69ce674b 619 if (!ah->is_pciexpress)
aa4058ae
LR		 620 ath9k_hw_disablepcie(ah);
621
d8f492b7
LR		 622 if (!AR_SREV_9300_20_OR_LATER(ah))
623 ar9002_hw_cck_chan14_spread(ah);
193cd458 624
f637cfd6 625 r = ath9k_hw_post_init(ah);
aa4058ae 626 if (r)
95fafca2 627 return r;
aa4058ae
LR		 628
629 ath9k_hw_init_mode_gain_regs(ah);
a9a29ce6
GJ		 630 r = ath9k_hw_fill_cap_info(ah);
631 if (r)
632 return r;
633
69ce674b
SG		 634 if (ah->is_pciexpress)
635 ath9k_hw_aspm_init(ah);
636
4f3acf81
LR		 637 r = ath9k_hw_init_macaddr(ah);
638 if (r) {
3800276a 639 ath_err(common, "Failed to initialize MAC address\n");
95fafca2 640 return r;
f078f209
LR		 641 }
642
d7e7d229 643 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
2660b81a 644 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
f1dc5600 645 else
2660b81a 646 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
f078f209 647
88e641df
GJ		 648 if (AR_SREV_9330(ah))
649 ah->bb_watchdog_timeout_ms = 85;
650 else
651 ah->bb_watchdog_timeout_ms = 25;
f078f209 652
211f5859
LR		 653 common->state = ATH_HW_INITIALIZED;
654
4f3acf81 655 return 0;
f078f209
LR		 656}
657
d70357d5 658int ath9k_hw_init(struct ath_hw *ah)
f078f209 659{
d70357d5
LR		 660 int ret;
661 struct ath_common *common = ath9k_hw_common(ah);
f078f209 662
d70357d5
LR		 663 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
664 switch (ah->hw_version.devid) {
665 case AR5416_DEVID_PCI:
666 case AR5416_DEVID_PCIE:
667 case AR5416_AR9100_DEVID:
668 case AR9160_DEVID_PCI:
669 case AR9280_DEVID_PCI:
670 case AR9280_DEVID_PCIE:
671 case AR9285_DEVID_PCIE:
db3cc53a
SB		 672 case AR9287_DEVID_PCI:
673 case AR9287_DEVID_PCIE:
d70357d5 674 case AR2427_DEVID_PCIE:
db3cc53a 675 case AR9300_DEVID_PCIE:
3050c914 676 case AR9300_DEVID_AR9485_PCIE:
999a7a88 677 case AR9300_DEVID_AR9330:
bca04689 678 case AR9300_DEVID_AR9340:
5a63ef0f 679 case AR9300_DEVID_AR9580:
423e38e8 680 case AR9300_DEVID_AR9462:
d70357d5
LR		 681 break;
682 default:
683 if (common->bus_ops->ath_bus_type == ATH_USB)
684 break;
3800276a
JP		 685 ath_err(common, "Hardware device ID 0x%04x not supported\n",
686 ah->hw_version.devid);
d70357d5
LR		 687 return -EOPNOTSUPP;
688 }
f078f209 689
d70357d5
LR		 690 ret = __ath9k_hw_init(ah);
691 if (ret) {
3800276a
JP		 692 ath_err(common,
693 "Unable to initialize hardware; initialization status: %d\n",
694 ret);
d70357d5
LR		 695 return ret;
696 }
f078f209 697
d70357d5 698 return 0;
f078f209 699}
d70357d5 700EXPORT_SYMBOL(ath9k_hw_init);
f078f209 701
cbe61d8a 702static void ath9k_hw_init_qos(struct ath_hw *ah)
f078f209 703{
7d0d0df0
S		 704 ENABLE_REGWRITE_BUFFER(ah);
705
f1dc5600
S		 706 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
707 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
f078f209 708
f1dc5600
S		 709 REG_WRITE(ah, AR_QOS_NO_ACK,
710 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
711 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
712 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
713
714 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
715 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
716 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
717 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
718 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
7d0d0df0
S		 719
720 REGWRITE_BUFFER_FLUSH(ah);
f078f209
LR		 721}
722
b84628eb 723u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
b1415819 724{
ca7a4deb
FF		 725 REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
726 udelay(100);
727 REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
b1415819 728
ca7a4deb
FF		 729 while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0)
730 udelay(100);
b1415819 731
ca7a4deb 732 return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
b1415819
VN		 733}
734EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
735
cbe61d8a 736static void ath9k_hw_init_pll(struct ath_hw *ah,
f1dc5600 737 struct ath9k_channel *chan)
f078f209 738{
d09b17f7
VT		 739 u32 pll;
740
22983c30 741 if (AR_SREV_9485(ah)) {
22983c30 742
3dfd7f60
VT		 743 /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */
744 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
745 AR_CH0_BB_DPLL2_PLL_PWD, 0x1);
746 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
747 AR_CH0_DPLL2_KD, 0x40);
748 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
749 AR_CH0_DPLL2_KI, 0x4);
22983c30 750
3dfd7f60
VT		 751 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
752 AR_CH0_BB_DPLL1_REFDIV, 0x5);
753 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
754 AR_CH0_BB_DPLL1_NINI, 0x58);
755 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
756 AR_CH0_BB_DPLL1_NFRAC, 0x0);
22983c30
VN		 757
758 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
3dfd7f60
VT		 759 AR_CH0_BB_DPLL2_OUTDIV, 0x1);
760 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
761 AR_CH0_BB_DPLL2_LOCAL_PLL, 0x1);
22983c30 762 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
3dfd7f60 763 AR_CH0_BB_DPLL2_EN_NEGTRIG, 0x1);
22983c30 764
3dfd7f60 765 /* program BB PLL phase_shift to 0x6 */
22983c30 766 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
3dfd7f60
VT		 767 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x6);
768
769 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
770 AR_CH0_BB_DPLL2_PLL_PWD, 0x0);
75e03512 771 udelay(1000);
a5415d62
GJ		 772 } else if (AR_SREV_9330(ah)) {
773 u32 ddr_dpll2, pll_control2, kd;
774
775 if (ah->is_clk_25mhz) {
776 ddr_dpll2 = 0x18e82f01;
777 pll_control2 = 0xe04a3d;
778 kd = 0x1d;
779 } else {
780 ddr_dpll2 = 0x19e82f01;
781 pll_control2 = 0x886666;
782 kd = 0x3d;
783 }
784
785 /* program DDR PLL ki and kd value */
786 REG_WRITE(ah, AR_CH0_DDR_DPLL2, ddr_dpll2);
787
788 /* program DDR PLL phase_shift */
789 REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3,
790 AR_CH0_DPLL3_PHASE_SHIFT, 0x1);
791
792 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
793 udelay(1000);
794
795 /* program refdiv, nint, frac to RTC register */
796 REG_WRITE(ah, AR_RTC_PLL_CONTROL2, pll_control2);
797
798 /* program BB PLL kd and ki value */
799 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KD, kd);
800 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KI, 0x06);
801
802 /* program BB PLL phase_shift */
803 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
804 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x1);
0b488ac6
VT		 805 } else if (AR_SREV_9340(ah)) {
806 u32 regval, pll2_divint, pll2_divfrac, refdiv;
807
808 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
809 udelay(1000);
810
811 REG_SET_BIT(ah, AR_PHY_PLL_MODE, 0x1 << 16);
812 udelay(100);
813
814 if (ah->is_clk_25mhz) {
815 pll2_divint = 0x54;
816 pll2_divfrac = 0x1eb85;
817 refdiv = 3;
818 } else {
819 pll2_divint = 88;
820 pll2_divfrac = 0;
821 refdiv = 5;
822 }
823
824 regval = REG_READ(ah, AR_PHY_PLL_MODE);
825 regval |= (0x1 << 16);
826 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
827 udelay(100);
828
829 REG_WRITE(ah, AR_PHY_PLL_CONTROL, (refdiv << 27) |
830 (pll2_divint << 18) | pll2_divfrac);
831 udelay(100);
832
833 regval = REG_READ(ah, AR_PHY_PLL_MODE);
834 regval = (regval & 0x80071fff) | (0x1 << 30) | (0x1 << 13) |
835 (0x4 << 26) | (0x18 << 19);
836 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
837 REG_WRITE(ah, AR_PHY_PLL_MODE,
838 REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff);
839 udelay(1000);
22983c30 840 }
d09b17f7
VT		 841
842 pll = ath9k_hw_compute_pll_control(ah, chan);
f078f209 843
d03a66c1 844 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
f078f209 845
a5415d62 846 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah))
3dfd7f60
VT		 847 udelay(1000);
848
c75724d1
LR		 849 /* Switch the core clock for ar9271 to 117Mhz */
850 if (AR_SREV_9271(ah)) {
25e2ab17
S		 851 udelay(500);
852 REG_WRITE(ah, 0x50040, 0x304);
c75724d1
LR		 853 }
854
f1dc5600
S		 855 udelay(RTC_PLL_SETTLE_DELAY);
856
857 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
0b488ac6
VT		 858
859 if (AR_SREV_9340(ah)) {
860 if (ah->is_clk_25mhz) {
861 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x17c << 1);
862 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f3d7);
863 REG_WRITE(ah, AR_SLP32_INC, 0x0001e7ae);
864 } else {
865 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x261 << 1);
866 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f400);
867 REG_WRITE(ah, AR_SLP32_INC, 0x0001e800);
868 }
869 udelay(100);
870 }
f078f209
LR		 871}
872
cbe61d8a 873static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
d97809db 874 enum nl80211_iftype opmode)
f078f209 875{
79d1d2b8 876 u32 sync_default = AR_INTR_SYNC_DEFAULT;
152d530d 877 u32 imr_reg = AR_IMR_TXERR |
f1dc5600
S		 878 AR_IMR_TXURN |
879 AR_IMR_RXERR |
880 AR_IMR_RXORN |
881 AR_IMR_BCNMISC;
f078f209 882
79d1d2b8
VT		 883 if (AR_SREV_9340(ah))
884 sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
885
66860240
VT		 886 if (AR_SREV_9300_20_OR_LATER(ah)) {
887 imr_reg |= AR_IMR_RXOK_HP;
888 if (ah->config.rx_intr_mitigation)
889 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
890 else
891 imr_reg |= AR_IMR_RXOK_LP;
f078f209 892
66860240
VT		 893 } else {
894 if (ah->config.rx_intr_mitigation)
895 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
896 else
897 imr_reg |= AR_IMR_RXOK;
898 }
f078f209 899
66860240
VT		 900 if (ah->config.tx_intr_mitigation)
901 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
902 else
903 imr_reg |= AR_IMR_TXOK;
f078f209 904
d97809db 905 if (opmode == NL80211_IFTYPE_AP)
152d530d 906 imr_reg |= AR_IMR_MIB;
f078f209 907
7d0d0df0
S		 908 ENABLE_REGWRITE_BUFFER(ah);
909
152d530d 910 REG_WRITE(ah, AR_IMR, imr_reg);
74bad5cb
PR		 911 ah->imrs2_reg |= AR_IMR_S2_GTT;
912 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
f078f209 913
f1dc5600
S		 914 if (!AR_SREV_9100(ah)) {
915 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
79d1d2b8 916 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default);
f1dc5600
S		 917 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
918 }
66860240 919
7d0d0df0 920 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 921
66860240
VT		 922 if (AR_SREV_9300_20_OR_LATER(ah)) {
923 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
924 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
925 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
926 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
927 }
f078f209
LR		 928}
929
b6ba41bb
FF		 930static void ath9k_hw_set_sifs_time(struct ath_hw *ah, u32 us)
931{
932 u32 val = ath9k_hw_mac_to_clks(ah, us - 2);
933 val = min(val, (u32) 0xFFFF);
934 REG_WRITE(ah, AR_D_GBL_IFS_SIFS, val);
935}
936
0005baf4 937static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
f078f209 938{
0005baf4
FF		 939 u32 val = ath9k_hw_mac_to_clks(ah, us);
940 val = min(val, (u32) 0xFFFF);
941 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
f078f209
LR		 942}
943
0005baf4 944static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
f078f209 945{
0005baf4
FF		 946 u32 val = ath9k_hw_mac_to_clks(ah, us);
947 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
948 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
949}
950
951static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
952{
953 u32 val = ath9k_hw_mac_to_clks(ah, us);
954 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
955 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
f078f209 956}
f1dc5600 957
cbe61d8a 958static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
f078f209 959{
f078f209 960 if (tu > 0xFFFF) {
d2182b69
JP		 961 ath_dbg(ath9k_hw_common(ah), XMIT, "bad global tx timeout %u\n",
962 tu);
2660b81a 963 ah->globaltxtimeout = (u32) -1;
f078f209
LR		 964 return false;
965 } else {
966 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
2660b81a 967 ah->globaltxtimeout = tu;
f078f209
LR		 968 return true;
969 }
970}
971
0005baf4 972void ath9k_hw_init_global_settings(struct ath_hw *ah)
f078f209 973{
b6ba41bb
FF		 974 struct ath_common *common = ath9k_hw_common(ah);
975 struct ieee80211_conf *conf = &common->hw->conf;
976 const struct ath9k_channel *chan = ah->curchan;
adb5066a 977 int acktimeout, ctstimeout;
e239d859 978 int slottime;
0005baf4 979 int sifstime;
b6ba41bb
FF		 980 int rx_lat = 0, tx_lat = 0, eifs = 0;
981 u32 reg;
0005baf4 982
d2182b69 983 ath_dbg(ath9k_hw_common(ah), RESET, "ah->misc_mode 0x%x\n",
226afe68 984 ah->misc_mode);
f078f209 985
b6ba41bb
FF		 986 if (!chan)
987 return;
988
2660b81a 989 if (ah->misc_mode != 0)
ca7a4deb 990 REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
0005baf4 991
81a91d57
RM		 992 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
993 rx_lat = 41;
994 else
995 rx_lat = 37;
b6ba41bb
FF		 996 tx_lat = 54;
997
998 if (IS_CHAN_HALF_RATE(chan)) {
999 eifs = 175;
1000 rx_lat *= 2;
1001 tx_lat *= 2;
1002 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1003 tx_lat += 11;
1004
1005 slottime = 13;
1006 sifstime = 32;
1007 } else if (IS_CHAN_QUARTER_RATE(chan)) {
1008 eifs = 340;
81a91d57 1009 rx_lat = (rx_lat * 4) - 1;
b6ba41bb
FF		 1010 tx_lat *= 4;
1011 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1012 tx_lat += 22;
1013
1014 slottime = 21;
1015 sifstime = 64;
1016 } else {
a7be039d
RM		 1017 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1018 eifs = AR_D_GBL_IFS_EIFS_ASYNC_FIFO;
1019 reg = AR_USEC_ASYNC_FIFO;
1020 } else {
1021 eifs = REG_READ(ah, AR_D_GBL_IFS_EIFS)/
1022 common->clockrate;
1023 reg = REG_READ(ah, AR_USEC);
1024 }
b6ba41bb
FF		 1025 rx_lat = MS(reg, AR_USEC_RX_LAT);
1026 tx_lat = MS(reg, AR_USEC_TX_LAT);
1027
1028 slottime = ah->slottime;
1029 if (IS_CHAN_5GHZ(chan))
1030 sifstime = 16;
1031 else
1032 sifstime = 10;
1033 }
0005baf4 1034
e239d859 1035 /* As defined by IEEE 802.11-2007 17.3.8.6 */
b6ba41bb 1036 acktimeout = slottime + sifstime + 3 * ah->coverage_class;
adb5066a 1037 ctstimeout = acktimeout;
42c4568a
FF		 1038
1039 /*
1040 * Workaround for early ACK timeouts, add an offset to match the
55a2bb4a 1041 * initval's 64us ack timeout value. Use 48us for the CTS timeout.
42c4568a
FF		 1042 * This was initially only meant to work around an issue with delayed
1043 * BA frames in some implementations, but it has been found to fix ACK
1044 * timeout issues in other cases as well.
1045 */
55a2bb4a 1046 if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ) {
42c4568a 1047 acktimeout += 64 - sifstime - ah->slottime;
55a2bb4a
FF		 1048 ctstimeout += 48 - sifstime - ah->slottime;
1049 }
1050
42c4568a 1051
b6ba41bb
FF		 1052 ath9k_hw_set_sifs_time(ah, sifstime);
1053 ath9k_hw_setslottime(ah, slottime);
0005baf4 1054 ath9k_hw_set_ack_timeout(ah, acktimeout);
adb5066a 1055 ath9k_hw_set_cts_timeout(ah, ctstimeout);
2660b81a
S		 1056 if (ah->globaltxtimeout != (u32) -1)
1057 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
b6ba41bb
FF		 1058
1059 REG_WRITE(ah, AR_D_GBL_IFS_EIFS, ath9k_hw_mac_to_clks(ah, eifs));
1060 REG_RMW(ah, AR_USEC,
1061 (common->clockrate - 1) |
1062 SM(rx_lat, AR_USEC_RX_LAT) |
1063 SM(tx_lat, AR_USEC_TX_LAT),
1064 AR_USEC_TX_LAT | AR_USEC_RX_LAT | AR_USEC_USEC);
1065
f1dc5600 1066}
0005baf4 1067EXPORT_SYMBOL(ath9k_hw_init_global_settings);
f1dc5600 1068
285f2dda 1069void ath9k_hw_deinit(struct ath_hw *ah)
f1dc5600 1070{
211f5859
LR		 1071 struct ath_common *common = ath9k_hw_common(ah);
1072
736b3a27 1073 if (common->state < ATH_HW_INITIALIZED)
211f5859
LR		 1074 goto free_hw;
1075
9ecdef4b 1076 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
211f5859
LR		 1077
1078free_hw:
8fe65368 1079 ath9k_hw_rf_free_ext_banks(ah);
f1dc5600 1080}
285f2dda 1081EXPORT_SYMBOL(ath9k_hw_deinit);
f1dc5600 1082
f1dc5600
S		 1083/*******/
1084/* INI */
1085/*******/
1086
8fe65368 1087u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
3a702e49
BC		 1088{
1089 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
1090
1091 if (IS_CHAN_B(chan))
1092 ctl |= CTL_11B;
1093 else if (IS_CHAN_G(chan))
1094 ctl |= CTL_11G;
1095 else
1096 ctl |= CTL_11A;
1097
1098 return ctl;
1099}
1100
f1dc5600
S		 1101/****************************************/
1102/* Reset and Channel Switching Routines */
1103/****************************************/
f1dc5600 1104
cbe61d8a 1105static inline void ath9k_hw_set_dma(struct ath_hw *ah)
f1dc5600 1106{
57b32227 1107 struct ath_common *common = ath9k_hw_common(ah);
f1dc5600 1108
7d0d0df0
S		 1109 ENABLE_REGWRITE_BUFFER(ah);
1110
d7e7d229
LR		 1111 /*
1112 * set AHB_MODE not to do cacheline prefetches
1113 */
ca7a4deb
FF		 1114 if (!AR_SREV_9300_20_OR_LATER(ah))
1115 REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
f1dc5600 1116
d7e7d229
LR		 1117 /*
1118 * let mac dma reads be in 128 byte chunks
1119 */
ca7a4deb 1120 REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK);
f1dc5600 1121
7d0d0df0 1122 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 1123
d7e7d229
LR		 1124 /*
1125 * Restore TX Trigger Level to its pre-reset value.
1126 * The initial value depends on whether aggregation is enabled, and is
1127 * adjusted whenever underruns are detected.
1128 */
57b32227
FF		 1129 if (!AR_SREV_9300_20_OR_LATER(ah))
1130 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
f1dc5600 1131
7d0d0df0 1132 ENABLE_REGWRITE_BUFFER(ah);
f1dc5600 1133
d7e7d229
LR		 1134 /*
1135 * let mac dma writes be in 128 byte chunks
1136 */
ca7a4deb 1137 REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK);
f1dc5600 1138
d7e7d229
LR		 1139 /*
1140 * Setup receive FIFO threshold to hold off TX activities
1141 */
f1dc5600
S		 1142 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
1143
57b32227
FF		 1144 if (AR_SREV_9300_20_OR_LATER(ah)) {
1145 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
1146 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
1147
1148 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
1149 ah->caps.rx_status_len);
1150 }
1151
d7e7d229
LR		 1152 /*
1153 * reduce the number of usable entries in PCU TXBUF to avoid
1154 * wrap around issues.
1155 */
f1dc5600 1156 if (AR_SREV_9285(ah)) {
d7e7d229
LR		 1157 /* For AR9285 the number of Fifos are reduced to half.
1158 * So set the usable tx buf size also to half to
1159 * avoid data/delimiter underruns
1160 */
f1dc5600
S		 1161 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1162 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
d7e7d229 1163 } else if (!AR_SREV_9271(ah)) {
f1dc5600
S		 1164 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1165 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
1166 }
744d4025 1167
7d0d0df0 1168 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 1169
744d4025
VT		 1170 if (AR_SREV_9300_20_OR_LATER(ah))
1171 ath9k_hw_reset_txstatus_ring(ah);
f1dc5600
S		 1172}
1173
cbe61d8a 1174static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
f1dc5600 1175{
ca7a4deb
FF		 1176 u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC;
1177 u32 set = AR_STA_ID1_KSRCH_MODE;
f1dc5600 1178
f1dc5600 1179 switch (opmode) {
d97809db 1180 case NL80211_IFTYPE_ADHOC:
9cb5412b 1181 case NL80211_IFTYPE_MESH_POINT:
ca7a4deb 1182 set |= AR_STA_ID1_ADHOC;
f1dc5600 1183 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
f078f209 1184 break;
ca7a4deb
FF		 1185 case NL80211_IFTYPE_AP:
1186 set |= AR_STA_ID1_STA_AP;
1187 /* fall through */
d97809db 1188 case NL80211_IFTYPE_STATION:
ca7a4deb 1189 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
f078f209 1190 break;
5f841b41 1191 default:
ca7a4deb
FF		 1192 if (!ah->is_monitoring)
1193 set = 0;
5f841b41 1194 break;
f1dc5600 1195 }
ca7a4deb 1196 REG_RMW(ah, AR_STA_ID1, set, mask);
f1dc5600
S		 1197}
1198
8fe65368
LR		 1199void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
1200 u32 *coef_mantissa, u32 *coef_exponent)
f1dc5600
S		 1201{
1202 u32 coef_exp, coef_man;
1203
1204 for (coef_exp = 31; coef_exp > 0; coef_exp--)
1205 if ((coef_scaled >> coef_exp) & 0x1)
1206 break;
1207
1208 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1209
1210 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1211
1212 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1213 *coef_exponent = coef_exp - 16;
1214}
1215
cbe61d8a 1216static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
f1dc5600
S		 1217{
1218 u32 rst_flags;
1219 u32 tmpReg;
1220
70768496 1221 if (AR_SREV_9100(ah)) {
ca7a4deb
FF		 1222 REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK,
1223 AR_RTC_DERIVED_CLK_PERIOD, 1);
70768496
S		 1224 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1225 }
1226
7d0d0df0
S		 1227 ENABLE_REGWRITE_BUFFER(ah);
1228
9a658d2b
LR		 1229 if (AR_SREV_9300_20_OR_LATER(ah)) {
1230 REG_WRITE(ah, AR_WA, ah->WARegVal);
1231 udelay(10);
1232 }
1233
f1dc5600
S		 1234 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1235 AR_RTC_FORCE_WAKE_ON_INT);
1236
1237 if (AR_SREV_9100(ah)) {
1238 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1239 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1240 } else {
1241 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1242 if (tmpReg &
1243 (AR_INTR_SYNC_LOCAL_TIMEOUT |
1244 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
42d5bc3f 1245 u32 val;
f1dc5600 1246 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
42d5bc3f
LR		 1247
1248 val = AR_RC_HOSTIF;
1249 if (!AR_SREV_9300_20_OR_LATER(ah))
1250 val |= AR_RC_AHB;
1251 REG_WRITE(ah, AR_RC, val);
1252
1253 } else if (!AR_SREV_9300_20_OR_LATER(ah))
f1dc5600 1254 REG_WRITE(ah, AR_RC, AR_RC_AHB);
f1dc5600
S		 1255
1256 rst_flags = AR_RTC_RC_MAC_WARM;
1257 if (type == ATH9K_RESET_COLD)
1258 rst_flags |= AR_RTC_RC_MAC_COLD;
1259 }
1260
7d95847c
GJ		 1261 if (AR_SREV_9330(ah)) {
1262 int npend = 0;
1263 int i;
1264
1265 /* AR9330 WAR:
1266 * call external reset function to reset WMAC if:
1267 * - doing a cold reset
1268 * - we have pending frames in the TX queues
1269 */
1270
1271 for (i = 0; i < AR_NUM_QCU; i++) {
1272 npend = ath9k_hw_numtxpending(ah, i);
1273 if (npend)
1274 break;
1275 }
1276
1277 if (ah->external_reset &&
1278 (npend || type == ATH9K_RESET_COLD)) {
1279 int reset_err = 0;
1280
d2182b69 1281 ath_dbg(ath9k_hw_common(ah), RESET,
7d95847c
GJ		 1282 "reset MAC via external reset\n");
1283
1284 reset_err = ah->external_reset();
1285 if (reset_err) {
1286 ath_err(ath9k_hw_common(ah),
1287 "External reset failed, err=%d\n",
1288 reset_err);
1289 return false;
1290 }
1291
1292 REG_WRITE(ah, AR_RTC_RESET, 1);
1293 }
1294 }
1295
d03a66c1 1296 REG_WRITE(ah, AR_RTC_RC, rst_flags);
7d0d0df0
S		 1297
1298 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 1299
f1dc5600
S		 1300 udelay(50);
1301
d03a66c1 1302 REG_WRITE(ah, AR_RTC_RC, 0);
0caa7b14 1303 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
d2182b69 1304 ath_dbg(ath9k_hw_common(ah), RESET, "RTC stuck in MAC reset\n");
f1dc5600
S		 1305 return false;
1306 }
1307
1308 if (!AR_SREV_9100(ah))
1309 REG_WRITE(ah, AR_RC, 0);
1310
f1dc5600
S		 1311 if (AR_SREV_9100(ah))
1312 udelay(50);
1313
1314 return true;
1315}
1316
cbe61d8a 1317static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
f1dc5600 1318{
7d0d0df0
S		 1319 ENABLE_REGWRITE_BUFFER(ah);
1320
9a658d2b
LR		 1321 if (AR_SREV_9300_20_OR_LATER(ah)) {
1322 REG_WRITE(ah, AR_WA, ah->WARegVal);
1323 udelay(10);
1324 }
1325
f1dc5600
S		 1326 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1327 AR_RTC_FORCE_WAKE_ON_INT);
1328
42d5bc3f 1329 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1c29ce67
VT		 1330 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1331
d03a66c1 1332 REG_WRITE(ah, AR_RTC_RESET, 0);
1c29ce67 1333
7d0d0df0 1334 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 1335
84e2169b
SB		 1336 if (!AR_SREV_9300_20_OR_LATER(ah))
1337 udelay(2);
1338
1339 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1c29ce67
VT		 1340 REG_WRITE(ah, AR_RC, 0);
1341
d03a66c1 1342 REG_WRITE(ah, AR_RTC_RESET, 1);
f1dc5600
S		 1343
1344 if (!ath9k_hw_wait(ah,
1345 AR_RTC_STATUS,
1346 AR_RTC_STATUS_M,
0caa7b14
S		 1347 AR_RTC_STATUS_ON,
1348 AH_WAIT_TIMEOUT)) {
d2182b69 1349 ath_dbg(ath9k_hw_common(ah), RESET, "RTC not waking up\n");
f1dc5600 1350 return false;
f078f209
LR		 1351 }
1352
f1dc5600
S		 1353 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1354}
1355
cbe61d8a 1356static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
f1dc5600 1357{
7a9233ff 1358 bool ret = false;
2577c6e8 1359
9a658d2b
LR		 1360 if (AR_SREV_9300_20_OR_LATER(ah)) {
1361 REG_WRITE(ah, AR_WA, ah->WARegVal);
1362 udelay(10);
1363 }
1364
f1dc5600
S		 1365 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1366 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1367
1368 switch (type) {
1369 case ATH9K_RESET_POWER_ON:
7a9233ff
MSS		 1370 ret = ath9k_hw_set_reset_power_on(ah);
1371 break;
f1dc5600
S		 1372 case ATH9K_RESET_WARM:
1373 case ATH9K_RESET_COLD:
7a9233ff
MSS		 1374 ret = ath9k_hw_set_reset(ah, type);
1375 break;
f1dc5600 1376 default:
7a9233ff 1377 break;
f1dc5600 1378 }
7a9233ff
MSS		 1379
1380 if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
1381 REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2);
1382
1383 return ret;
f078f209
LR		 1384}
1385
cbe61d8a 1386static bool ath9k_hw_chip_reset(struct ath_hw *ah,
f1dc5600 1387 struct ath9k_channel *chan)
f078f209 1388{
9c083af8
FF		 1389 int reset_type = ATH9K_RESET_WARM;
1390
1391 if (AR_SREV_9280(ah)) {
1392 if (ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1393 reset_type = ATH9K_RESET_POWER_ON;
1394 else
1395 reset_type = ATH9K_RESET_COLD;
1396 }
1397
1398 if (!ath9k_hw_set_reset_reg(ah, reset_type))
f1dc5600 1399 return false;
f078f209 1400
9ecdef4b 1401 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
f1dc5600 1402 return false;
f078f209 1403
2660b81a 1404 ah->chip_fullsleep = false;
f1dc5600 1405 ath9k_hw_init_pll(ah, chan);
f1dc5600 1406 ath9k_hw_set_rfmode(ah, chan);
f078f209 1407
f1dc5600 1408 return true;
f078f209
LR		 1409}
1410
cbe61d8a 1411static bool ath9k_hw_channel_change(struct ath_hw *ah,
25c56eec 1412 struct ath9k_channel *chan)
f078f209 1413{
c46917bb 1414 struct ath_common *common = ath9k_hw_common(ah);
8fe65368 1415 u32 qnum;
0a3b7bac 1416 int r;
5f0c04ea
RM		 1417 bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
1418 bool band_switch, mode_diff;
1419 u8 ini_reloaded;
1420
1421 band_switch = (chan->channelFlags & (CHANNEL_2GHZ | CHANNEL_5GHZ)) !=
1422 (ah->curchan->channelFlags & (CHANNEL_2GHZ |
1423 CHANNEL_5GHZ));
1424 mode_diff = (chan->chanmode != ah->curchan->chanmode);
f078f209
LR		 1425
1426 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1427 if (ath9k_hw_numtxpending(ah, qnum)) {
d2182b69 1428 ath_dbg(common, QUEUE,
226afe68 1429 "Transmit frames pending on queue %d\n", qnum);
f078f209
LR		 1430 return false;
1431 }
1432 }
1433
8fe65368 1434 if (!ath9k_hw_rfbus_req(ah)) {
3800276a 1435 ath_err(common, "Could not kill baseband RX\n");
f078f209
LR		 1436 return false;
1437 }
1438
5f0c04ea
RM		 1439 if (edma && (band_switch || mode_diff)) {
1440 ath9k_hw_mark_phy_inactive(ah);
1441 udelay(5);
1442
1443 ath9k_hw_init_pll(ah, NULL);
1444
1445 if (ath9k_hw_fast_chan_change(ah, chan, &ini_reloaded)) {
1446 ath_err(common, "Failed to do fast channel change\n");
1447 return false;
1448 }
1449 }
1450
8fe65368 1451 ath9k_hw_set_channel_regs(ah, chan);
f078f209 1452
8fe65368 1453 r = ath9k_hw_rf_set_freq(ah, chan);
0a3b7bac 1454 if (r) {
3800276a 1455 ath_err(common, "Failed to set channel\n");
0a3b7bac 1456 return false;
f078f209 1457 }
dfdac8ac 1458 ath9k_hw_set_clockrate(ah);
ca2c68cc 1459 ath9k_hw_apply_txpower(ah, chan);
8fe65368 1460 ath9k_hw_rfbus_done(ah);
f078f209 1461
f1dc5600
S		 1462 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1463 ath9k_hw_set_delta_slope(ah, chan);
1464
8fe65368 1465 ath9k_hw_spur_mitigate_freq(ah, chan);
f1dc5600 1466
5f0c04ea 1467 if (edma && (band_switch || mode_diff)) {
a126ff51 1468 ah->ah_flags |= AH_FASTCC;
5f0c04ea
RM		 1469 if (band_switch || ini_reloaded)
1470 ah->eep_ops->set_board_values(ah, chan);
1471
1472 ath9k_hw_init_bb(ah, chan);
1473
1474 if (band_switch || ini_reloaded)
1475 ath9k_hw_init_cal(ah, chan);
a126ff51 1476 ah->ah_flags &= ~AH_FASTCC;
5f0c04ea
RM		 1477 }
1478
f1dc5600
S		 1479 return true;
1480}
1481
691680b8
FF		 1482static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
1483{
1484 u32 gpio_mask = ah->gpio_mask;
1485 int i;
1486
1487 for (i = 0; gpio_mask; i++, gpio_mask >>= 1) {
1488 if (!(gpio_mask & 1))
1489 continue;
1490
1491 ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
1492 ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
1493 }
1494}
1495
c9c99e5e 1496bool ath9k_hw_check_alive(struct ath_hw *ah)
3b319aae 1497{
c9c99e5e
FF		 1498 int count = 50;
1499 u32 reg;
1500
e17f83ea 1501 if (AR_SREV_9285_12_OR_LATER(ah))
c9c99e5e
FF		 1502 return true;
1503
1504 do {
1505 reg = REG_READ(ah, AR_OBS_BUS_1);
3b319aae 1506
c9c99e5e
FF		 1507 if ((reg & 0x7E7FFFEF) == 0x00702400)
1508 continue;
1509
1510 switch (reg & 0x7E000B00) {
1511 case 0x1E000000:
1512 case 0x52000B00:
1513 case 0x18000B00:
1514 continue;
1515 default:
1516 return true;
1517 }
1518 } while (count-- > 0);
3b319aae 1519
c9c99e5e 1520 return false;
3b319aae 1521}
c9c99e5e 1522EXPORT_SYMBOL(ath9k_hw_check_alive);
3b319aae 1523
caed6579
SM		 1524/*
1525 * Fast channel change:
1526 * (Change synthesizer based on channel freq without resetting chip)
1527 *
1528 * Don't do FCC when
1529 * - Flag is not set
1530 * - Chip is just coming out of full sleep
1531 * - Channel to be set is same as current channel
1532 * - Channel flags are different, (eg.,moving from 2GHz to 5GHz channel)
1533 */
1534static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan)
1535{
1536 struct ath_common *common = ath9k_hw_common(ah);
1537 int ret;
1538
1539 if (AR_SREV_9280(ah) && common->bus_ops->ath_bus_type == ATH_PCI)
1540 goto fail;
1541
1542 if (ah->chip_fullsleep)
1543 goto fail;
1544
1545 if (!ah->curchan)
1546 goto fail;
1547
1548 if (chan->channel == ah->curchan->channel)
1549 goto fail;
1550
1551 if ((chan->channelFlags & CHANNEL_ALL) !=
1552 (ah->curchan->channelFlags & CHANNEL_ALL))
1553 goto fail;
1554
1555 if (!ath9k_hw_check_alive(ah))
1556 goto fail;
1557
1558 /*
1559 * For AR9462, make sure that calibration data for
1560 * re-using are present.
1561 */
1562 if (AR_SREV_9462(ah) && (!ah->caldata ||
1563 !ah->caldata->done_txiqcal_once ||
1564 !ah->caldata->done_txclcal_once ||
1565 !ah->caldata->rtt_hist.num_readings))
1566 goto fail;
1567
1568 ath_dbg(common, RESET, "FastChannelChange for %d -> %d\n",
1569 ah->curchan->channel, chan->channel);
1570
1571 ret = ath9k_hw_channel_change(ah, chan);
1572 if (!ret)
1573 goto fail;
1574
1575 ath9k_hw_loadnf(ah, ah->curchan);
1576 ath9k_hw_start_nfcal(ah, true);
1577
1578 if ((ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && ar9003_mci_is_ready(ah))
1579 ar9003_mci_2g5g_switch(ah, true);
1580
1581 if (AR_SREV_9271(ah))
1582 ar9002_hw_load_ani_reg(ah, chan);
1583
1584 return 0;
1585fail:
1586 return -EINVAL;
1587}
1588
cbe61d8a 1589int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
caed6579 1590 struct ath9k_hw_cal_data *caldata, bool fastcc)
f078f209 1591{
1510718d 1592 struct ath_common *common = ath9k_hw_common(ah);
f078f209 1593 u32 saveLedState;
f078f209
LR		 1594 u32 saveDefAntenna;
1595 u32 macStaId1;
46fe782c 1596 u64 tsf = 0;
8fe65368 1597 int i, r;
caed6579 1598 bool start_mci_reset = false;
63d32967
MSS		 1599 bool mci = !!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI);
1600 bool save_fullsleep = ah->chip_fullsleep;
1601
1602 if (mci) {
528e5d36
SM		 1603 start_mci_reset = ar9003_mci_start_reset(ah, chan);
1604 if (start_mci_reset)
1605 return 0;
63d32967
MSS		 1606 }
1607
9ecdef4b 1608 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
ae8d2858 1609 return -EIO;
f078f209 1610
caed6579
SM		 1611 if (ah->curchan && !ah->chip_fullsleep)
1612 ath9k_hw_getnf(ah, ah->curchan);
f078f209 1613
20bd2a09
FF		 1614 ah->caldata = caldata;
1615 if (caldata &&
1616 (chan->channel != caldata->channel ||
1617 (chan->channelFlags & ~CHANNEL_CW_INT) !=
1618 (caldata->channelFlags & ~CHANNEL_CW_INT))) {
1619 /* Operating channel changed, reset channel calibration data */
1620 memset(caldata, 0, sizeof(*caldata));
1621 ath9k_init_nfcal_hist_buffer(ah, chan);
1622 }
f23fba49 1623 ah->noise = ath9k_hw_getchan_noise(ah, chan);
20bd2a09 1624
caed6579
SM		 1625 if (fastcc) {
1626 r = ath9k_hw_do_fastcc(ah, chan);
1627 if (!r)
1628 return r;
f078f209
LR		 1629 }
1630
528e5d36
SM		 1631 if (mci)
1632 ar9003_mci_stop_bt(ah, save_fullsleep);
63d32967 1633
f078f209
LR		 1634 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1635 if (saveDefAntenna == 0)
1636 saveDefAntenna = 1;
1637
1638 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1639
46fe782c 1640 /* For chips on which RTC reset is done, save TSF before it gets cleared */
f860d526
FF		 1641 if (AR_SREV_9100(ah) ||
1642 (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)))
46fe782c
S		 1643 tsf = ath9k_hw_gettsf64(ah);
1644
f078f209
LR		 1645 saveLedState = REG_READ(ah, AR_CFG_LED) &
1646 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1647 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1648
1649 ath9k_hw_mark_phy_inactive(ah);
1650
45ef6a0b
VT		 1651 ah->paprd_table_write_done = false;
1652
05020d23 1653 /* Only required on the first reset */
d7e7d229
LR		 1654 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1655 REG_WRITE(ah,
1656 AR9271_RESET_POWER_DOWN_CONTROL,
1657 AR9271_RADIO_RF_RST);
1658 udelay(50);
1659 }
1660
f078f209 1661 if (!ath9k_hw_chip_reset(ah, chan)) {
3800276a 1662 ath_err(common, "Chip reset failed\n");
ae8d2858 1663 return -EINVAL;
f078f209
LR		 1664 }
1665
05020d23 1666 /* Only required on the first reset */
d7e7d229
LR		 1667 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1668 ah->htc_reset_init = false;
1669 REG_WRITE(ah,
1670 AR9271_RESET_POWER_DOWN_CONTROL,
1671 AR9271_GATE_MAC_CTL);
1672 udelay(50);
1673 }
1674
46fe782c 1675 /* Restore TSF */
f860d526 1676 if (tsf)
46fe782c
S		 1677 ath9k_hw_settsf64(ah, tsf);
1678
7a37081e 1679 if (AR_SREV_9280_20_OR_LATER(ah))
369391db 1680 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
f078f209 1681
e9141f71
S		 1682 if (!AR_SREV_9300_20_OR_LATER(ah))
1683 ar9002_hw_enable_async_fifo(ah);
1684
25c56eec 1685 r = ath9k_hw_process_ini(ah, chan);
ae8d2858
LR		 1686 if (r)
1687 return r;
f078f209 1688
63d32967
MSS		 1689 if (mci)
1690 ar9003_mci_reset(ah, false, IS_CHAN_2GHZ(chan), save_fullsleep);
1691
f860d526
FF		 1692 /*
1693 * Some AR91xx SoC devices frequently fail to accept TSF writes
1694 * right after the chip reset. When that happens, write a new
1695 * value after the initvals have been applied, with an offset
1696 * based on measured time difference
1697 */
1698 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1699 tsf += 1500;
1700 ath9k_hw_settsf64(ah, tsf);
1701 }
1702
0ced0e17
JM		 1703 /* Setup MFP options for CCMP */
1704 if (AR_SREV_9280_20_OR_LATER(ah)) {
1705 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1706 * frames when constructing CCMP AAD. */
1707 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1708 0xc7ff);
1709 ah->sw_mgmt_crypto = false;
1710 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1711 /* Disable hardware crypto for management frames */
1712 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1713 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1714 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1715 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1716 ah->sw_mgmt_crypto = true;
1717 } else
1718 ah->sw_mgmt_crypto = true;
1719
f078f209
LR		 1720 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1721 ath9k_hw_set_delta_slope(ah, chan);
1722
8fe65368 1723 ath9k_hw_spur_mitigate_freq(ah, chan);
d6509151 1724 ah->eep_ops->set_board_values(ah, chan);
a7765828 1725
7d0d0df0
S		 1726 ENABLE_REGWRITE_BUFFER(ah);
1727
1510718d
LR		 1728 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1729 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
f078f209
LR		 1730 | macStaId1
1731 | AR_STA_ID1_RTS_USE_DEF
2660b81a 1732 | (ah->config.
60b67f51 1733 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
2660b81a 1734 | ah->sta_id1_defaults);
13b81559 1735 ath_hw_setbssidmask(common);
f078f209 1736 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
3453ad88 1737 ath9k_hw_write_associd(ah);
f078f209 1738 REG_WRITE(ah, AR_ISR, ~0);
f078f209
LR		 1739 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1740
7d0d0df0 1741 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 1742
00e0003e
SM		 1743 ath9k_hw_set_operating_mode(ah, ah->opmode);
1744
8fe65368 1745 r = ath9k_hw_rf_set_freq(ah, chan);
0a3b7bac
LR		 1746 if (r)
1747 return r;
f078f209 1748
dfdac8ac
FF		 1749 ath9k_hw_set_clockrate(ah);
1750
7d0d0df0
S		 1751 ENABLE_REGWRITE_BUFFER(ah);
1752
f078f209
LR		 1753 for (i = 0; i < AR_NUM_DCU; i++)
1754 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1755
7d0d0df0 1756 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 1757
2660b81a 1758 ah->intr_txqs = 0;
f4c607dc 1759 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
f078f209
LR		 1760 ath9k_hw_resettxqueue(ah, i);
1761
2660b81a 1762 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
e36b27af 1763 ath9k_hw_ani_cache_ini_regs(ah);
f078f209
LR		 1764 ath9k_hw_init_qos(ah);
1765
2660b81a 1766 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
55821324 1767 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
3b319aae 1768
0005baf4 1769 ath9k_hw_init_global_settings(ah);
f078f209 1770
fe2b6afb
FF		 1771 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1772 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
1773 AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
1774 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
1775 AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
1776 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1777 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
ac88b6ec
VN		 1778 }
1779
ca7a4deb 1780 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
f078f209
LR		 1781
1782 ath9k_hw_set_dma(ah);
1783
1784 REG_WRITE(ah, AR_OBS, 8);
1785
0ce024cb 1786 if (ah->config.rx_intr_mitigation) {
f078f209
LR		 1787 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
1788 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
1789 }
1790
7f62a136
VT		 1791 if (ah->config.tx_intr_mitigation) {
1792 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1793 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1794 }
1795
f078f209
LR		 1796 ath9k_hw_init_bb(ah, chan);
1797
77a5a664 1798 if (caldata) {
5f0c04ea 1799 caldata->done_txiqcal_once = false;
77a5a664 1800 caldata->done_txclcal_once = false;
324c74ad 1801 caldata->rtt_hist.num_readings = 0;
77a5a664 1802 }
ae8d2858 1803 if (!ath9k_hw_init_cal(ah, chan))
6badaaf7 1804 return -EIO;
f078f209 1805
93348928
RM		 1806 ath9k_hw_loadnf(ah, chan);
1807 ath9k_hw_start_nfcal(ah, true);
1808
528e5d36
SM		 1809 if (mci && ar9003_mci_end_reset(ah, chan, caldata))
1810 return -EIO;
63d32967 1811
7d0d0df0 1812 ENABLE_REGWRITE_BUFFER(ah);
f078f209 1813
8fe65368 1814 ath9k_hw_restore_chainmask(ah);
f078f209
LR		 1815 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1816
7d0d0df0 1817 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 1818
d7e7d229
LR		 1819 /*
1820 * For big endian systems turn on swapping for descriptors
1821 */
f078f209
LR		 1822 if (AR_SREV_9100(ah)) {
1823 u32 mask;
1824 mask = REG_READ(ah, AR_CFG);
1825 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
d2182b69
JP		 1826 ath_dbg(common, RESET, "CFG Byte Swap Set 0x%x\n",
1827 mask);
f078f209
LR		 1828 } else {
1829 mask =
1830 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1831 REG_WRITE(ah, AR_CFG, mask);
d2182b69
JP		 1832 ath_dbg(common, RESET, "Setting CFG 0x%x\n",
1833 REG_READ(ah, AR_CFG));
f078f209
LR		 1834 }
1835 } else {
cbba8cd1
S		 1836 if (common->bus_ops->ath_bus_type == ATH_USB) {
1837 /* Configure AR9271 target WLAN */
1838 if (AR_SREV_9271(ah))
1839 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1840 else
1841 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1842 }
f078f209 1843#ifdef __BIG_ENDIAN
4033bdad 1844 else if (AR_SREV_9330(ah) || AR_SREV_9340(ah))
2be7bfe0
VT		 1845 REG_RMW(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB, 0);
1846 else
d7e7d229 1847 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
f078f209
LR		 1848#endif
1849 }
1850
dbccdd1d 1851 if (ath9k_hw_btcoex_is_enabled(ah))
42cc41ed
VT		 1852 ath9k_hw_btcoex_enable(ah);
1853
528e5d36
SM		 1854 if (mci)
1855 ar9003_mci_check_bt(ah);
63d32967 1856
51ac8cbb 1857 if (AR_SREV_9300_20_OR_LATER(ah)) {
aea702b7 1858 ar9003_hw_bb_watchdog_config(ah);
d8903a53 1859
51ac8cbb
RM		 1860 ar9003_hw_disable_phy_restart(ah);
1861 }
1862
691680b8
FF		 1863 ath9k_hw_apply_gpio_override(ah);
1864
ae8d2858 1865 return 0;
f078f209 1866}
7322fd19 1867EXPORT_SYMBOL(ath9k_hw_reset);
f078f209 1868
f1dc5600
S		 1869/******************************/
1870/* Power Management (Chipset) */
1871/******************************/
1872
42d5bc3f
LR		 1873/*
1874 * Notify Power Mgt is disabled in self-generated frames.
1875 * If requested, force chip to sleep.
1876 */
cbe61d8a 1877static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
f078f209 1878{
f1dc5600
S		 1879 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1880 if (setChip) {
423e38e8 1881 if (AR_SREV_9462(ah)) {
2577c6e8
SB		 1882 REG_WRITE(ah, AR_TIMER_MODE,
1883 REG_READ(ah, AR_TIMER_MODE) & 0xFFFFFF00);
1884 REG_WRITE(ah, AR_NDP2_TIMER_MODE, REG_READ(ah,
1885 AR_NDP2_TIMER_MODE) & 0xFFFFFF00);
1886 REG_WRITE(ah, AR_SLP32_INC,
1887 REG_READ(ah, AR_SLP32_INC) & 0xFFF00000);
1888 /* xxx Required for WLAN only case ? */
1889 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, 0);
1890 udelay(100);
1891 }
1892
42d5bc3f
LR		 1893 /*
1894 * Clear the RTC force wake bit to allow the
1895 * mac to go to sleep.
1896 */
2577c6e8
SB		 1897 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
1898
423e38e8 1899 if (AR_SREV_9462(ah))
2577c6e8
SB		 1900 udelay(100);
1901
42d5bc3f 1902 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
f1dc5600 1903 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
f078f209 1904
42d5bc3f 1905 /* Shutdown chip. Active low */
c91ec465 1906 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah)) {
2577c6e8
SB		 1907 REG_CLR_BIT(ah, AR_RTC_RESET, AR_RTC_RESET_EN);
1908 udelay(2);
1909 }
f1dc5600 1910 }
9a658d2b
LR		 1911
1912 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
a7322812
RW		 1913 if (AR_SREV_9300_20_OR_LATER(ah))
1914 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
f078f209
LR		 1915}
1916
bbd79af5
LR		 1917/*
1918 * Notify Power Management is enabled in self-generating
1919 * frames. If request, set power mode of chip to
1920 * auto/normal. Duration in units of 128us (1/8 TU).
1921 */
cbe61d8a 1922static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
f078f209 1923{
2577c6e8
SB		 1924 u32 val;
1925
f1dc5600
S		 1926 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1927 if (setChip) {
2660b81a 1928 struct ath9k_hw_capabilities *pCap = &ah->caps;
f078f209 1929
f1dc5600 1930 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
bbd79af5 1931 /* Set WakeOnInterrupt bit; clear ForceWake bit */
f1dc5600
S		 1932 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1933 AR_RTC_FORCE_WAKE_ON_INT);
1934 } else {
2577c6e8
SB		 1935
1936 /* When chip goes into network sleep, it could be waken
1937 * up by MCI_INT interrupt caused by BT's HW messages
1938 * (LNA_xxx, CONT_xxx) which chould be in a very fast
1939 * rate (~100us). This will cause chip to leave and
1940 * re-enter network sleep mode frequently, which in
1941 * consequence will have WLAN MCI HW to generate lots of
1942 * SYS_WAKING and SYS_SLEEPING messages which will make
1943 * BT CPU to busy to process.
1944 */
423e38e8 1945 if (AR_SREV_9462(ah)) {
2577c6e8
SB		 1946 val = REG_READ(ah, AR_MCI_INTERRUPT_RX_MSG_EN) &
1947 ~AR_MCI_INTERRUPT_RX_HW_MSG_MASK;
1948 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, val);
1949 }
bbd79af5
LR		 1950 /*
1951 * Clear the RTC force wake bit to allow the
1952 * mac to go to sleep.
1953 */
f1dc5600
S		 1954 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1955 AR_RTC_FORCE_WAKE_EN);
2577c6e8 1956
423e38e8 1957 if (AR_SREV_9462(ah))
2577c6e8 1958 udelay(30);
f078f209 1959 }
f078f209 1960 }
9a658d2b
LR		 1961
1962 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
1963 if (AR_SREV_9300_20_OR_LATER(ah))
1964 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
f078f209
LR		 1965}
1966
cbe61d8a 1967static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
f078f209 1968{
f1dc5600
S		 1969 u32 val;
1970 int i;
f078f209 1971
9a658d2b
LR		 1972 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
1973 if (AR_SREV_9300_20_OR_LATER(ah)) {
1974 REG_WRITE(ah, AR_WA, ah->WARegVal);
1975 udelay(10);
1976 }
1977
f1dc5600
S		 1978 if (setChip) {
1979 if ((REG_READ(ah, AR_RTC_STATUS) &
1980 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1981 if (ath9k_hw_set_reset_reg(ah,
1982 ATH9K_RESET_POWER_ON) != true) {
1983 return false;
1984 }
e041228f
LR		 1985 if (!AR_SREV_9300_20_OR_LATER(ah))
1986 ath9k_hw_init_pll(ah, NULL);
f1dc5600
S		 1987 }
1988 if (AR_SREV_9100(ah))
1989 REG_SET_BIT(ah, AR_RTC_RESET,
1990 AR_RTC_RESET_EN);
f078f209 1991
f1dc5600
S		 1992 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1993 AR_RTC_FORCE_WAKE_EN);
1994 udelay(50);
f078f209 1995
f1dc5600
S		 1996 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1997 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1998 if (val == AR_RTC_STATUS_ON)
1999 break;
2000 udelay(50);
2001 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2002 AR_RTC_FORCE_WAKE_EN);
f078f209 2003 }
f1dc5600 2004 if (i == 0) {
3800276a
JP		 2005 ath_err(ath9k_hw_common(ah),
2006 "Failed to wakeup in %uus\n",
2007 POWER_UP_TIME / 20);
f1dc5600 2008 return false;
f078f209 2009 }
f078f209
LR		 2010 }
2011
f1dc5600 2012 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
f078f209 2013
f1dc5600 2014 return true;
f078f209
LR		 2015}
2016
9ecdef4b 2017bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
f078f209 2018{
c46917bb 2019 struct ath_common *common = ath9k_hw_common(ah);
cbe61d8a 2020 int status = true, setChip = true;
f1dc5600
S		 2021 static const char *modes[] = {
2022 "AWAKE",
2023 "FULL-SLEEP",
2024 "NETWORK SLEEP",
2025 "UNDEFINED"
2026 };
f1dc5600 2027
cbdec975
GJ		 2028 if (ah->power_mode == mode)
2029 return status;
2030
d2182b69 2031 ath_dbg(common, RESET, "%s -> %s\n",
226afe68 2032 modes[ah->power_mode], modes[mode]);
f1dc5600
S		 2033
2034 switch (mode) {
2035 case ATH9K_PM_AWAKE:
2036 status = ath9k_hw_set_power_awake(ah, setChip);
1010911e
MSS		 2037
2038 if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
2039 REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2);
2040
f1dc5600
S		 2041 break;
2042 case ATH9K_PM_FULL_SLEEP:
d1ca8b8e
SM		 2043 if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
2044 ar9003_mci_set_full_sleep(ah);
1010911e 2045
f1dc5600 2046 ath9k_set_power_sleep(ah, setChip);
2660b81a 2047 ah->chip_fullsleep = true;
f1dc5600
S		 2048 break;
2049 case ATH9K_PM_NETWORK_SLEEP:
1010911e
MSS		 2050
2051 if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
2052 REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2);
2053
f1dc5600
S		 2054 ath9k_set_power_network_sleep(ah, setChip);
2055 break;
f078f209 2056 default:
3800276a 2057 ath_err(common, "Unknown power mode %u\n", mode);
f078f209
LR		 2058 return false;
2059 }
2660b81a 2060 ah->power_mode = mode;
f1dc5600 2061
69f4aab1
LR		 2062 /*
2063 * XXX: If this warning never comes up after a while then
2064 * simply keep the ATH_DBG_WARN_ON_ONCE() but make
2065 * ath9k_hw_setpower() return type void.
2066 */
97dcec57
SM		 2067
2068 if (!(ah->ah_flags & AH_UNPLUGGED))
2069 ATH_DBG_WARN_ON_ONCE(!status);
69f4aab1 2070
f1dc5600 2071 return status;
f078f209 2072}
7322fd19 2073EXPORT_SYMBOL(ath9k_hw_setpower);
f078f209 2074
f1dc5600
S		 2075/*******************/
2076/* Beacon Handling */
2077/*******************/
2078
cbe61d8a 2079void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
f078f209 2080{
f078f209
LR		 2081 int flags = 0;
2082
7d0d0df0
S		 2083 ENABLE_REGWRITE_BUFFER(ah);
2084
2660b81a 2085 switch (ah->opmode) {
d97809db 2086 case NL80211_IFTYPE_ADHOC:
9cb5412b 2087 case NL80211_IFTYPE_MESH_POINT:
f078f209
LR		 2088 REG_SET_BIT(ah, AR_TXCFG,
2089 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
dd347f2f
FF		 2090 REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon +
2091 TU_TO_USEC(ah->atim_window ? ah->atim_window : 1));
f078f209 2092 flags |= AR_NDP_TIMER_EN;
d97809db 2093 case NL80211_IFTYPE_AP:
dd347f2f
FF		 2094 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
2095 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
2096 TU_TO_USEC(ah->config.dma_beacon_response_time));
2097 REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
2098 TU_TO_USEC(ah->config.sw_beacon_response_time));
f078f209
LR		 2099 flags |=
2100 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
2101 break;
d97809db 2102 default:
d2182b69
JP		 2103 ath_dbg(ath9k_hw_common(ah), BEACON,
2104 "%s: unsupported opmode: %d\n", __func__, ah->opmode);
d97809db
CM		 2105 return;
2106 break;
f078f209
LR		 2107 }
2108
dd347f2f
FF		 2109 REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
2110 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
2111 REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
2112 REG_WRITE(ah, AR_NDP_PERIOD, beacon_period);
f078f209 2113
7d0d0df0 2114 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 2115
f078f209
LR		 2116 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
2117}
7322fd19 2118EXPORT_SYMBOL(ath9k_hw_beaconinit);
f078f209 2119
cbe61d8a 2120void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
f1dc5600 2121 const struct ath9k_beacon_state *bs)
f078f209
LR		 2122{
2123 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
2660b81a 2124 struct ath9k_hw_capabilities *pCap = &ah->caps;
c46917bb 2125 struct ath_common *common = ath9k_hw_common(ah);
f078f209 2126
7d0d0df0
S		 2127 ENABLE_REGWRITE_BUFFER(ah);
2128
f078f209
LR		 2129 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
2130
2131 REG_WRITE(ah, AR_BEACON_PERIOD,
f29f5c08 2132 TU_TO_USEC(bs->bs_intval));
f078f209 2133 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
f29f5c08 2134 TU_TO_USEC(bs->bs_intval));
f078f209 2135
7d0d0df0 2136 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 2137
f078f209
LR		 2138 REG_RMW_FIELD(ah, AR_RSSI_THR,
2139 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
2140
f29f5c08 2141 beaconintval = bs->bs_intval;
f078f209
LR		 2142
2143 if (bs->bs_sleepduration > beaconintval)
2144 beaconintval = bs->bs_sleepduration;
2145
2146 dtimperiod = bs->bs_dtimperiod;
2147 if (bs->bs_sleepduration > dtimperiod)
2148 dtimperiod = bs->bs_sleepduration;
2149
2150 if (beaconintval == dtimperiod)
2151 nextTbtt = bs->bs_nextdtim;
2152 else
2153 nextTbtt = bs->bs_nexttbtt;
2154
d2182b69
JP		 2155 ath_dbg(common, BEACON, "next DTIM %d\n", bs->bs_nextdtim);
2156 ath_dbg(common, BEACON, "next beacon %d\n", nextTbtt);
2157 ath_dbg(common, BEACON, "beacon period %d\n", beaconintval);
2158 ath_dbg(common, BEACON, "DTIM period %d\n", dtimperiod);
f078f209 2159
7d0d0df0
S		 2160 ENABLE_REGWRITE_BUFFER(ah);
2161
f1dc5600
S		 2162 REG_WRITE(ah, AR_NEXT_DTIM,
2163 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
2164 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
f078f209 2165
f1dc5600
S		 2166 REG_WRITE(ah, AR_SLEEP1,
2167 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
2168 | AR_SLEEP1_ASSUME_DTIM);
f078f209 2169
f1dc5600
S		 2170 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
2171 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
2172 else
2173 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
f078f209 2174
f1dc5600
S		 2175 REG_WRITE(ah, AR_SLEEP2,
2176 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
f078f209 2177
f1dc5600
S		 2178 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
2179 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
f078f209 2180
7d0d0df0 2181 REGWRITE_BUFFER_FLUSH(ah);
7d0d0df0 2182
f1dc5600
S		 2183 REG_SET_BIT(ah, AR_TIMER_MODE,
2184 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
2185 AR_DTIM_TIMER_EN);
f078f209 2186
4af9cf4f
S		 2187 /* TSF Out of Range Threshold */
2188 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
f078f209 2189}
7322fd19 2190EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
f078f209 2191
f1dc5600
S		 2192/*******************/
2193/* HW Capabilities */
2194/*******************/
2195
6054069a
FF		 2196static u8 fixup_chainmask(u8 chip_chainmask, u8 eeprom_chainmask)
2197{
2198 eeprom_chainmask &= chip_chainmask;
2199 if (eeprom_chainmask)
2200 return eeprom_chainmask;
2201 else
2202 return chip_chainmask;
2203}
2204
9a66af33
ZK		 2205/**
2206 * ath9k_hw_dfs_tested - checks if DFS has been tested with used chipset
2207 * @ah: the atheros hardware data structure
2208 *
2209 * We enable DFS support upstream on chipsets which have passed a series
2210 * of tests. The testing requirements are going to be documented. Desired
2211 * test requirements are documented at:
2212 *
2213 * http://wireless.kernel.org/en/users/Drivers/ath9k/dfs
2214 *
2215 * Once a new chipset gets properly tested an individual commit can be used
2216 * to document the testing for DFS for that chipset.
2217 */
2218static bool ath9k_hw_dfs_tested(struct ath_hw *ah)
2219{
2220
2221 switch (ah->hw_version.macVersion) {
2222 /* AR9580 will likely be our first target to get testing on */
2223 case AR_SREV_VERSION_9580:
2224 default:
2225 return false;
2226 }
2227}
2228
a9a29ce6 2229int ath9k_hw_fill_cap_info(struct ath_hw *ah)
f078f209 2230{
2660b81a 2231 struct ath9k_hw_capabilities *pCap = &ah->caps;
608b88cb 2232 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
c46917bb 2233 struct ath_common *common = ath9k_hw_common(ah);
6054069a 2234 unsigned int chip_chainmask;
608b88cb 2235
0ff2b5c0 2236 u16 eeval;
47c80de6 2237 u8 ant_div_ctl1, tx_chainmask, rx_chainmask;
f078f209 2238
f74df6fb 2239 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
608b88cb 2240 regulatory->current_rd = eeval;
f078f209 2241
2660b81a 2242 if (ah->opmode != NL80211_IFTYPE_AP &&
d535a42a 2243 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
608b88cb
LR		 2244 if (regulatory->current_rd == 0x64 ||
2245 regulatory->current_rd == 0x65)
2246 regulatory->current_rd += 5;
2247 else if (regulatory->current_rd == 0x41)
2248 regulatory->current_rd = 0x43;
d2182b69
JP		 2249 ath_dbg(common, REGULATORY, "regdomain mapped to 0x%x\n",
2250 regulatory->current_rd);
f1dc5600 2251 }
f078f209 2252
f74df6fb 2253 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
a9a29ce6 2254 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
3800276a
JP		 2255 ath_err(common,
2256 "no band has been marked as supported in EEPROM\n");
a9a29ce6
GJ		 2257 return -EINVAL;
2258 }
2259
d4659912
FF		 2260 if (eeval & AR5416_OPFLAGS_11A)
2261 pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
f078f209 2262
d4659912
FF		 2263 if (eeval & AR5416_OPFLAGS_11G)
2264 pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
f1dc5600 2265
6054069a
FF		 2266 if (AR_SREV_9485(ah) || AR_SREV_9285(ah) || AR_SREV_9330(ah))
2267 chip_chainmask = 1;
ba5736a5
MSS		 2268 else if (AR_SREV_9462(ah))
2269 chip_chainmask = 3;
6054069a
FF		 2270 else if (!AR_SREV_9280_20_OR_LATER(ah))
2271 chip_chainmask = 7;
2272 else if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9340(ah))
2273 chip_chainmask = 3;
2274 else
2275 chip_chainmask = 7;
2276
f74df6fb 2277 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
d7e7d229
LR		 2278 /*
2279 * For AR9271 we will temporarilly uses the rx chainmax as read from
2280 * the EEPROM.
2281 */
8147f5de 2282 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
d7e7d229
LR		 2283 !(eeval & AR5416_OPFLAGS_11A) &&
2284 !(AR_SREV_9271(ah)))
2285 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
8147f5de 2286 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
598cdd52
FF		 2287 else if (AR_SREV_9100(ah))
2288 pCap->rx_chainmask = 0x7;
8147f5de 2289 else
d7e7d229 2290 /* Use rx_chainmask from EEPROM. */
8147f5de 2291 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
f078f209 2292
6054069a
FF		 2293 pCap->tx_chainmask = fixup_chainmask(chip_chainmask, pCap->tx_chainmask);
2294 pCap->rx_chainmask = fixup_chainmask(chip_chainmask, pCap->rx_chainmask);
82b2d334
FF		 2295 ah->txchainmask = pCap->tx_chainmask;
2296 ah->rxchainmask = pCap->rx_chainmask;
6054069a 2297
7a37081e 2298 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
f078f209 2299
02d2ebb2
FF		 2300 /* enable key search for every frame in an aggregate */
2301 if (AR_SREV_9300_20_OR_LATER(ah))
2302 ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
2303
ce2220d1
BR		 2304 common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
2305
0db156e9 2306 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
f1dc5600
S		 2307 pCap->hw_caps |= ATH9K_HW_CAP_HT;
2308 else
2309 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
f078f209 2310
5b5fa355
S		 2311 if (AR_SREV_9271(ah))
2312 pCap->num_gpio_pins = AR9271_NUM_GPIO;
88c1f4f6
S		 2313 else if (AR_DEVID_7010(ah))
2314 pCap->num_gpio_pins = AR7010_NUM_GPIO;
6321eb09
MSS		 2315 else if (AR_SREV_9300_20_OR_LATER(ah))
2316 pCap->num_gpio_pins = AR9300_NUM_GPIO;
2317 else if (AR_SREV_9287_11_OR_LATER(ah))
2318 pCap->num_gpio_pins = AR9287_NUM_GPIO;
e17f83ea 2319 else if (AR_SREV_9285_12_OR_LATER(ah))
cb33c412 2320 pCap->num_gpio_pins = AR9285_NUM_GPIO;
7a37081e 2321 else if (AR_SREV_9280_20_OR_LATER(ah))
f1dc5600
S		 2322 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2323 else
2324 pCap->num_gpio_pins = AR_NUM_GPIO;
f078f209 2325
1b2538b2 2326 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah))
f1dc5600 2327 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
1b2538b2 2328 else
f1dc5600 2329 pCap->rts_aggr_limit = (8 * 1024);
f078f209 2330
e97275cb 2331#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
2660b81a
S		 2332 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2333 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2334 ah->rfkill_gpio =
2335 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2336 ah->rfkill_polarity =
2337 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
f1dc5600
S		 2338
2339 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
f078f209 2340 }
f1dc5600 2341#endif
d5d1154f 2342 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
bde748a4
VN		 2343 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2344 else
2345 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
f078f209 2346
e7594072 2347 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
f1dc5600
S		 2348 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2349 else
2350 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
f078f209 2351
ceb26445 2352 if (AR_SREV_9300_20_OR_LATER(ah)) {
784ad503 2353 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
0e707a94 2354 if (!AR_SREV_9330(ah) && !AR_SREV_9485(ah))
784ad503
VT		 2355 pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
2356
ceb26445
VT		 2357 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2358 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2359 pCap->rx_status_len = sizeof(struct ar9003_rxs);
162c3be3 2360 pCap->tx_desc_len = sizeof(struct ar9003_txc);
5088c2f1 2361 pCap->txs_len = sizeof(struct ar9003_txs);
6f481010
LR		 2362 if (!ah->config.paprd_disable &&
2363 ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
4935250a 2364 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
162c3be3
VT		 2365 } else {
2366 pCap->tx_desc_len = sizeof(struct ath_desc);
a949b172 2367 if (AR_SREV_9280_20(ah))
6b42e8d0 2368 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
ceb26445 2369 }
1adf02ff 2370
6c84ce08
VT		 2371 if (AR_SREV_9300_20_OR_LATER(ah))
2372 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2373
6ee63f55
SB		 2374 if (AR_SREV_9300_20_OR_LATER(ah))
2375 ah->ent_mode = REG_READ(ah, AR_ENT_OTP);
2376
a42acef0 2377 if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah))
6473d24d
VT		 2378 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
2379
754dc536
VT		 2380 if (AR_SREV_9285(ah))
2381 if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) {
2382 ant_div_ctl1 =
2383 ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2384 if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1))
2385 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2386 }
ea066d5a
MSS		 2387 if (AR_SREV_9300_20_OR_LATER(ah)) {
2388 if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
2389 pCap->hw_caps |= ATH9K_HW_CAP_APM;
2390 }
2391
2392
431da56a 2393 if (AR_SREV_9330(ah) || AR_SREV_9485(ah)) {
21d2c63a
MSS		 2394 ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2395 /*
2396 * enable the diversity-combining algorithm only when
2397 * both enable_lna_div and enable_fast_div are set
2398 * Table for Diversity
2399 * ant_div_alt_lnaconf bit 0-1
2400 * ant_div_main_lnaconf bit 2-3
2401 * ant_div_alt_gaintb bit 4
2402 * ant_div_main_gaintb bit 5
2403 * enable_ant_div_lnadiv bit 6
2404 * enable_ant_fast_div bit 7
2405 */
2406 if ((ant_div_ctl1 >> 0x6) == 0x3)
2407 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2408 }
754dc536 2409
8060e169
VT		 2410 if (AR_SREV_9485_10(ah)) {
2411 pCap->pcie_lcr_extsync_en = true;
2412 pCap->pcie_lcr_offset = 0x80;
2413 }
2414
9a66af33
ZK		 2415 if (ath9k_hw_dfs_tested(ah))
2416 pCap->hw_caps |= ATH9K_HW_CAP_DFS;
2417
47c80de6
VT		 2418 tx_chainmask = pCap->tx_chainmask;
2419 rx_chainmask = pCap->rx_chainmask;
2420 while (tx_chainmask || rx_chainmask) {
2421 if (tx_chainmask & BIT(0))
2422 pCap->max_txchains++;
2423 if (rx_chainmask & BIT(0))
2424 pCap->max_rxchains++;
2425
2426 tx_chainmask >>= 1;
2427 rx_chainmask >>= 1;
2428 }
2429
8ad74c4d
RM		 2430 if (AR_SREV_9300_20_OR_LATER(ah)) {
2431 ah->enabled_cals |= TX_IQ_CAL;
6fea593d 2432 if (AR_SREV_9485_OR_LATER(ah))
8ad74c4d
RM		 2433 ah->enabled_cals |= TX_IQ_ON_AGC_CAL;
2434 }
3789d59c
MSS		 2435
2436 if (AR_SREV_9462(ah)) {
2437
2438 if (!(ah->ent_mode & AR_ENT_OTP_49GHZ_DISABLE))
2439 pCap->hw_caps |= ATH9K_HW_CAP_MCI;
2440
2441 if (AR_SREV_9462_20(ah))
2442 pCap->hw_caps |= ATH9K_HW_CAP_RTT;
2443
2444 }
2445
324c74ad 2446
a9a29ce6 2447 return 0;
f078f209
LR		 2448}
2449
f1dc5600
S		 2450/****************************/
2451/* GPIO / RFKILL / Antennae */
2452/****************************/
f078f209 2453
cbe61d8a 2454static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
f1dc5600
S		 2455 u32 gpio, u32 type)
2456{
2457 int addr;
2458 u32 gpio_shift, tmp;
f078f209 2459
f1dc5600
S		 2460 if (gpio > 11)
2461 addr = AR_GPIO_OUTPUT_MUX3;
2462 else if (gpio > 5)
2463 addr = AR_GPIO_OUTPUT_MUX2;
2464 else
2465 addr = AR_GPIO_OUTPUT_MUX1;
f078f209 2466
f1dc5600 2467 gpio_shift = (gpio % 6) * 5;
f078f209 2468
f1dc5600
S		 2469 if (AR_SREV_9280_20_OR_LATER(ah)
2470 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2471 REG_RMW(ah, addr, (type << gpio_shift),
2472 (0x1f << gpio_shift));
f078f209 2473 } else {
f1dc5600
S		 2474 tmp = REG_READ(ah, addr);
2475 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2476 tmp &= ~(0x1f << gpio_shift);
2477 tmp |= (type << gpio_shift);
2478 REG_WRITE(ah, addr, tmp);
f078f209 2479 }
f078f209
LR		 2480}
2481
cbe61d8a 2482void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
f078f209 2483{
f1dc5600 2484 u32 gpio_shift;
f078f209 2485
9680e8a3 2486 BUG_ON(gpio >= ah->caps.num_gpio_pins);
f078f209 2487
88c1f4f6
S		 2488 if (AR_DEVID_7010(ah)) {
2489 gpio_shift = gpio;
2490 REG_RMW(ah, AR7010_GPIO_OE,
2491 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2492 (AR7010_GPIO_OE_MASK << gpio_shift));
2493 return;
2494 }
f078f209 2495
88c1f4f6 2496 gpio_shift = gpio << 1;
f1dc5600
S		 2497 REG_RMW(ah,
2498 AR_GPIO_OE_OUT,
2499 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2500 (AR_GPIO_OE_OUT_DRV << gpio_shift));
f078f209 2501}
7322fd19 2502EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
f078f209 2503
cbe61d8a 2504u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
f078f209 2505{
cb33c412
SB		 2506#define MS_REG_READ(x, y) \
2507 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2508
2660b81a 2509 if (gpio >= ah->caps.num_gpio_pins)
f1dc5600 2510 return 0xffffffff;
f078f209 2511
88c1f4f6
S		 2512 if (AR_DEVID_7010(ah)) {
2513 u32 val;
2514 val = REG_READ(ah, AR7010_GPIO_IN);
2515 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2516 } else if (AR_SREV_9300_20_OR_LATER(ah))
9306990a
VT		 2517 return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
2518 AR_GPIO_BIT(gpio)) != 0;
783dfca1 2519 else if (AR_SREV_9271(ah))
5b5fa355 2520 return MS_REG_READ(AR9271, gpio) != 0;
a42acef0 2521 else if (AR_SREV_9287_11_OR_LATER(ah))
ac88b6ec 2522 return MS_REG_READ(AR9287, gpio) != 0;
e17f83ea 2523 else if (AR_SREV_9285_12_OR_LATER(ah))
cb33c412 2524 return MS_REG_READ(AR9285, gpio) != 0;
7a37081e 2525 else if (AR_SREV_9280_20_OR_LATER(ah))
cb33c412
SB		 2526 return MS_REG_READ(AR928X, gpio) != 0;
2527 else
2528 return MS_REG_READ(AR, gpio) != 0;
f078f209 2529}
7322fd19 2530EXPORT_SYMBOL(ath9k_hw_gpio_get);
f078f209 2531
cbe61d8a 2532void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
f1dc5600 2533 u32 ah_signal_type)
f078f209 2534{
f1dc5600 2535 u32 gpio_shift;
f078f209 2536
88c1f4f6
S		 2537 if (AR_DEVID_7010(ah)) {
2538 gpio_shift = gpio;
2539 REG_RMW(ah, AR7010_GPIO_OE,
2540 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2541 (AR7010_GPIO_OE_MASK << gpio_shift));
2542 return;
2543 }
f078f209 2544
88c1f4f6 2545 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
f1dc5600 2546 gpio_shift = 2 * gpio;
f1dc5600
S		 2547 REG_RMW(ah,
2548 AR_GPIO_OE_OUT,
2549 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2550 (AR_GPIO_OE_OUT_DRV << gpio_shift));
f078f209 2551}
7322fd19 2552EXPORT_SYMBOL(ath9k_hw_cfg_output);
f078f209 2553
cbe61d8a 2554void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
f078f209 2555{
88c1f4f6
S		 2556 if (AR_DEVID_7010(ah)) {
2557 val = val ? 0 : 1;
2558 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2559 AR_GPIO_BIT(gpio));
2560 return;
2561 }
2562
5b5fa355
S		 2563 if (AR_SREV_9271(ah))
2564 val = ~val;
2565
f1dc5600
S		 2566 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2567 AR_GPIO_BIT(gpio));
f078f209 2568}
7322fd19 2569EXPORT_SYMBOL(ath9k_hw_set_gpio);
f078f209 2570
cbe61d8a 2571u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
f078f209 2572{
f1dc5600 2573 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
f078f209 2574}
7322fd19 2575EXPORT_SYMBOL(ath9k_hw_getdefantenna);
f078f209 2576
cbe61d8a 2577void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
f078f209 2578{
f1dc5600 2579 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
f078f209 2580}
7322fd19 2581EXPORT_SYMBOL(ath9k_hw_setantenna);
f078f209 2582
f1dc5600
S		 2583/*********************/
2584/* General Operation */
2585/*********************/
2586
cbe61d8a 2587u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
f078f209 2588{
f1dc5600
S		 2589 u32 bits = REG_READ(ah, AR_RX_FILTER);
2590 u32 phybits = REG_READ(ah, AR_PHY_ERR);
f078f209 2591
f1dc5600
S		 2592 if (phybits & AR_PHY_ERR_RADAR)
2593 bits |= ATH9K_RX_FILTER_PHYRADAR;
2594 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2595 bits |= ATH9K_RX_FILTER_PHYERR;
dc2222a8 2596
f1dc5600 2597 return bits;
f078f209 2598}
7322fd19 2599EXPORT_SYMBOL(ath9k_hw_getrxfilter);
f078f209 2600
cbe61d8a 2601void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
f078f209 2602{
f1dc5600 2603 u32 phybits;
f078f209 2604
7d0d0df0
S		 2605 ENABLE_REGWRITE_BUFFER(ah);
2606
423e38e8 2607 if (AR_SREV_9462(ah))
2577c6e8
SB		 2608 bits |= ATH9K_RX_FILTER_CONTROL_WRAPPER;
2609
7ea310be
S		 2610 REG_WRITE(ah, AR_RX_FILTER, bits);
2611
f1dc5600
S		 2612 phybits = 0;
2613 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2614 phybits |= AR_PHY_ERR_RADAR;
2615 if (bits & ATH9K_RX_FILTER_PHYERR)
2616 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2617 REG_WRITE(ah, AR_PHY_ERR, phybits);
f078f209 2618
f1dc5600 2619 if (phybits)
ca7a4deb 2620 REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
f1dc5600 2621 else
ca7a4deb 2622 REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
7d0d0df0
S		 2623
2624 REGWRITE_BUFFER_FLUSH(ah);
f1dc5600 2625}
7322fd19 2626EXPORT_SYMBOL(ath9k_hw_setrxfilter);
f078f209 2627
cbe61d8a 2628bool ath9k_hw_phy_disable(struct ath_hw *ah)
f1dc5600 2629{
63a75b91
SB		 2630 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2631 return false;
2632
2633 ath9k_hw_init_pll(ah, NULL);
2634 return true;
f1dc5600 2635}
7322fd19 2636EXPORT_SYMBOL(ath9k_hw_phy_disable);
f078f209 2637
cbe61d8a 2638bool ath9k_hw_disable(struct ath_hw *ah)
f1dc5600 2639{
9ecdef4b 2640 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
f1dc5600 2641 return false;
f078f209 2642
63a75b91
SB		 2643 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2644 return false;
2645
2646 ath9k_hw_init_pll(ah, NULL);
2647 return true;
f078f209 2648}
7322fd19 2649EXPORT_SYMBOL(ath9k_hw_disable);
f078f209 2650
ca2c68cc
FF		 2651static int get_antenna_gain(struct ath_hw *ah, struct ath9k_channel *chan)
2652{
2653 enum eeprom_param gain_param;
2654
2655 if (IS_CHAN_2GHZ(chan))
2656 gain_param = EEP_ANTENNA_GAIN_2G;
2657 else
2658 gain_param = EEP_ANTENNA_GAIN_5G;
2659
2660 return ah->eep_ops->get_eeprom(ah, gain_param);
2661}
2662
2663void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan)
2664{
2665 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2666 struct ieee80211_channel *channel;
2667 int chan_pwr, new_pwr, max_gain;
2668 int ant_gain, ant_reduction = 0;
2669
2670 if (!chan)
2671 return;
2672
2673 channel = chan->chan;
2674 chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER);
2675 new_pwr = min_t(int, chan_pwr, reg->power_limit);
2676 max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2;
2677
2678 ant_gain = get_antenna_gain(ah, chan);
2679 if (ant_gain > max_gain)
2680 ant_reduction = ant_gain - max_gain;
2681
2682 ah->eep_ops->set_txpower(ah, chan,
2683 ath9k_regd_get_ctl(reg, chan),
2684 ant_reduction, new_pwr, false);
2685}
2686
de40f316 2687void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
f078f209 2688{
ca2c68cc 2689 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2660b81a 2690 struct ath9k_channel *chan = ah->curchan;
5f8e077c 2691 struct ieee80211_channel *channel = chan->chan;
9c204b46 2692
48ef5c42 2693 reg->power_limit = min_t(u32, limit, MAX_RATE_POWER);
9c204b46 2694 if (test)
ca2c68cc 2695 channel->max_power = MAX_RATE_POWER / 2;
f078f209 2696
ca2c68cc 2697 ath9k_hw_apply_txpower(ah, chan);
6f255425 2698
ca2c68cc
FF		 2699 if (test)
2700 channel->max_power = DIV_ROUND_UP(reg->max_power_level, 2);
6f255425 2701}
7322fd19 2702EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
6f255425 2703
cbe61d8a 2704void ath9k_hw_setopmode(struct ath_hw *ah)
f078f209 2705{
2660b81a 2706 ath9k_hw_set_operating_mode(ah, ah->opmode);
f078f209 2707}
7322fd19 2708EXPORT_SYMBOL(ath9k_hw_setopmode);
f078f209 2709
cbe61d8a 2710void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
f078f209 2711{
f1dc5600
S		 2712 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2713 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
f078f209 2714}
7322fd19 2715EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
f078f209 2716
f2b2143e 2717void ath9k_hw_write_associd(struct ath_hw *ah)
f078f209 2718{
1510718d
LR		 2719 struct ath_common *common = ath9k_hw_common(ah);
2720
2721 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2722 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2723 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
f078f209 2724}
7322fd19 2725EXPORT_SYMBOL(ath9k_hw_write_associd);
f078f209 2726
1c0fc65e
BP		 2727#define ATH9K_MAX_TSF_READ 10
2728
cbe61d8a 2729u64 ath9k_hw_gettsf64(struct ath_hw *ah)
f078f209 2730{
1c0fc65e
BP		 2731 u32 tsf_lower, tsf_upper1, tsf_upper2;
2732 int i;
2733
2734 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2735 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2736 tsf_lower = REG_READ(ah, AR_TSF_L32);
2737 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2738 if (tsf_upper2 == tsf_upper1)
2739 break;
2740 tsf_upper1 = tsf_upper2;
2741 }
f078f209 2742
1c0fc65e 2743 WARN_ON( i == ATH9K_MAX_TSF_READ );
f078f209 2744
1c0fc65e 2745 return (((u64)tsf_upper1 << 32) | tsf_lower);
f1dc5600 2746}
7322fd19 2747EXPORT_SYMBOL(ath9k_hw_gettsf64);
f078f209 2748
cbe61d8a 2749void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
27abe060 2750{
27abe060 2751 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
b9a16197 2752 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
27abe060 2753}
7322fd19 2754EXPORT_SYMBOL(ath9k_hw_settsf64);
27abe060 2755
cbe61d8a 2756void ath9k_hw_reset_tsf(struct ath_hw *ah)
f1dc5600 2757{
f9b604f6
GJ		 2758 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2759 AH_TSF_WRITE_TIMEOUT))
d2182b69 2760 ath_dbg(ath9k_hw_common(ah), RESET,
226afe68 2761 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
f9b604f6 2762
f1dc5600
S		 2763 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2764}
7322fd19 2765EXPORT_SYMBOL(ath9k_hw_reset_tsf);
f078f209 2766
54e4cec6 2767void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
f1dc5600 2768{
f1dc5600 2769 if (setting)
2660b81a 2770 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
f1dc5600 2771 else
2660b81a 2772 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
f1dc5600 2773}
7322fd19 2774EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
f078f209 2775
25c56eec 2776void ath9k_hw_set11nmac2040(struct ath_hw *ah)
f1dc5600 2777{
25c56eec 2778 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
f1dc5600
S		 2779 u32 macmode;
2780
25c56eec 2781 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
f1dc5600
S		 2782 macmode = AR_2040_JOINED_RX_CLEAR;
2783 else
2784 macmode = 0;
f078f209 2785
f1dc5600 2786 REG_WRITE(ah, AR_2040_MODE, macmode);
f078f209 2787}
ff155a45
VT		 2788
2789/* HW Generic timers configuration */
2790
2791static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2792{
2793 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2794 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2795 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2796 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2797 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2798 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2799 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2800 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2801 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2802 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2803 AR_NDP2_TIMER_MODE, 0x0002},
2804 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2805 AR_NDP2_TIMER_MODE, 0x0004},
2806 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2807 AR_NDP2_TIMER_MODE, 0x0008},
2808 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2809 AR_NDP2_TIMER_MODE, 0x0010},
2810 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2811 AR_NDP2_TIMER_MODE, 0x0020},
2812 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2813 AR_NDP2_TIMER_MODE, 0x0040},
2814 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2815 AR_NDP2_TIMER_MODE, 0x0080}
2816};
2817
2818/* HW generic timer primitives */
2819
2820/* compute and clear index of rightmost 1 */
2821static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2822{
2823 u32 b;
2824
2825 b = *mask;
2826 b &= (0-b);
2827 *mask &= ~b;
2828 b *= debruijn32;
2829 b >>= 27;
2830
2831 return timer_table->gen_timer_index[b];
2832}
2833
dd347f2f 2834u32 ath9k_hw_gettsf32(struct ath_hw *ah)
ff155a45
VT		 2835{
2836 return REG_READ(ah, AR_TSF_L32);
2837}
dd347f2f 2838EXPORT_SYMBOL(ath9k_hw_gettsf32);
ff155a45
VT		 2839
2840struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2841 void (*trigger)(void *),
2842 void (*overflow)(void *),
2843 void *arg,
2844 u8 timer_index)
2845{
2846 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2847 struct ath_gen_timer *timer;
2848
2849 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2850
2851 if (timer == NULL) {
3800276a
JP		 2852 ath_err(ath9k_hw_common(ah),
2853 "Failed to allocate memory for hw timer[%d]\n",
2854 timer_index);
ff155a45
VT		 2855 return NULL;
2856 }
2857
2858 /* allocate a hardware generic timer slot */
2859 timer_table->timers[timer_index] = timer;
2860 timer->index = timer_index;
2861 timer->trigger = trigger;
2862 timer->overflow = overflow;
2863 timer->arg = arg;
2864
2865 return timer;
2866}
7322fd19 2867EXPORT_SYMBOL(ath_gen_timer_alloc);
ff155a45 2868
cd9bf689
LR		 2869void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2870 struct ath_gen_timer *timer,
788f6875 2871 u32 trig_timeout,
cd9bf689 2872 u32 timer_period)
ff155a45
VT		 2873{
2874 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
788f6875 2875 u32 tsf, timer_next;
ff155a45
VT		 2876
2877 BUG_ON(!timer_period);
2878
2879 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2880
2881 tsf = ath9k_hw_gettsf32(ah);
2882
788f6875
VT		 2883 timer_next = tsf + trig_timeout;
2884
d2182b69 2885 ath_dbg(ath9k_hw_common(ah), HWTIMER,
226afe68
JP		 2886 "current tsf %x period %x timer_next %x\n",
2887 tsf, timer_period, timer_next);
ff155a45 2888
ff155a45
VT		 2889 /*
2890 * Program generic timer registers
2891 */
2892 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2893 timer_next);
2894 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2895 timer_period);
2896 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2897 gen_tmr_configuration[timer->index].mode_mask);
2898
423e38e8 2899 if (AR_SREV_9462(ah)) {
2577c6e8 2900 /*
423e38e8 2901 * Starting from AR9462, each generic timer can select which tsf
2577c6e8
SB		 2902 * to use. But we still follow the old rule, 0 - 7 use tsf and
2903 * 8 - 15 use tsf2.
2904 */
2905 if ((timer->index < AR_GEN_TIMER_BANK_1_LEN))
2906 REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
2907 (1 << timer->index));
2908 else
2909 REG_SET_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
2910 (1 << timer->index));
2911 }
2912
ff155a45
VT		 2913 /* Enable both trigger and thresh interrupt masks */
2914 REG_SET_BIT(ah, AR_IMR_S5,
2915 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2916 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
ff155a45 2917}
7322fd19 2918EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
ff155a45 2919
cd9bf689 2920void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
ff155a45
VT		 2921{
2922 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2923
2924 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2925 (timer->index >= ATH_MAX_GEN_TIMER)) {
2926 return;
2927 }
2928
2929 /* Clear generic timer enable bits. */
2930 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2931 gen_tmr_configuration[timer->index].mode_mask);
2932
2933 /* Disable both trigger and thresh interrupt masks */
2934 REG_CLR_BIT(ah, AR_IMR_S5,
2935 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2936 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2937
2938 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
ff155a45 2939}
7322fd19 2940EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
ff155a45
VT		 2941
2942void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2943{
2944 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2945
2946 /* free the hardware generic timer slot */
2947 timer_table->timers[timer->index] = NULL;
2948 kfree(timer);
2949}
7322fd19 2950EXPORT_SYMBOL(ath_gen_timer_free);
ff155a45
VT		 2951
2952/*
2953 * Generic Timer Interrupts handling
2954 */
2955void ath_gen_timer_isr(struct ath_hw *ah)
2956{
2957 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2958 struct ath_gen_timer *timer;
c46917bb 2959 struct ath_common *common = ath9k_hw_common(ah);
ff155a45
VT		 2960 u32 trigger_mask, thresh_mask, index;
2961
2962 /* get hardware generic timer interrupt status */
2963 trigger_mask = ah->intr_gen_timer_trigger;
2964 thresh_mask = ah->intr_gen_timer_thresh;
2965 trigger_mask &= timer_table->timer_mask.val;
2966 thresh_mask &= timer_table->timer_mask.val;
2967
2968 trigger_mask &= ~thresh_mask;
2969
2970 while (thresh_mask) {
2971 index = rightmost_index(timer_table, &thresh_mask);
2972 timer = timer_table->timers[index];
2973 BUG_ON(!timer);
d2182b69
JP		 2974 ath_dbg(common, HWTIMER, "TSF overflow for Gen timer %d\n",
2975 index);
ff155a45
VT		 2976 timer->overflow(timer->arg);
2977 }
2978
2979 while (trigger_mask) {
2980 index = rightmost_index(timer_table, &trigger_mask);
2981 timer = timer_table->timers[index];
2982 BUG_ON(!timer);
d2182b69 2983 ath_dbg(common, HWTIMER,
226afe68 2984 "Gen timer[%d] trigger\n", index);
ff155a45
VT		 2985 timer->trigger(timer->arg);
2986 }
2987}
7322fd19 2988EXPORT_SYMBOL(ath_gen_timer_isr);
2da4f01a 2989
05020d23
S		 2990/********/
2991/* HTC */
2992/********/
2993
2994void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2995{
2996 ah->htc_reset_init = true;
2997}
2998EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2999
2da4f01a
LR		 3000static struct {
3001 u32 version;
3002 const char * name;
3003} ath_mac_bb_names[] = {
3004 /* Devices with external radios */
3005 { AR_SREV_VERSION_5416_PCI, "5416" },
3006 { AR_SREV_VERSION_5416_PCIE, "5418" },
3007 { AR_SREV_VERSION_9100, "9100" },
3008 { AR_SREV_VERSION_9160, "9160" },
3009 /* Single-chip solutions */
3010 { AR_SREV_VERSION_9280, "9280" },
3011 { AR_SREV_VERSION_9285, "9285" },
11158472
LR		 3012 { AR_SREV_VERSION_9287, "9287" },
3013 { AR_SREV_VERSION_9271, "9271" },
ec83903e 3014 { AR_SREV_VERSION_9300, "9300" },
2c8e5937 3015 { AR_SREV_VERSION_9330, "9330" },
397e5d5b 3016 { AR_SREV_VERSION_9340, "9340" },
8f06ca2c 3017 { AR_SREV_VERSION_9485, "9485" },
423e38e8 3018 { AR_SREV_VERSION_9462, "9462" },
2da4f01a
LR		 3019};
3020
3021/* For devices with external radios */
3022static struct {
3023 u16 version;
3024 const char * name;
3025} ath_rf_names[] = {
3026 { 0, "5133" },
3027 { AR_RAD5133_SREV_MAJOR, "5133" },
3028 { AR_RAD5122_SREV_MAJOR, "5122" },
3029 { AR_RAD2133_SREV_MAJOR, "2133" },
3030 { AR_RAD2122_SREV_MAJOR, "2122" }
3031};
3032
3033/*
3034 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
3035 */
f934c4d9 3036static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2da4f01a
LR		 3037{
3038 int i;
3039
3040 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
3041 if (ath_mac_bb_names[i].version == mac_bb_version) {
3042 return ath_mac_bb_names[i].name;
3043 }
3044 }
3045
3046 return "????";
3047}
2da4f01a
LR		 3048
3049/*
3050 * Return the RF name. "????" is returned if the RF is unknown.
3051 * Used for devices with external radios.
3052 */
f934c4d9 3053static const char *ath9k_hw_rf_name(u16 rf_version)
2da4f01a
LR		 3054{
3055 int i;
3056
3057 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
3058 if (ath_rf_names[i].version == rf_version) {
3059 return ath_rf_names[i].name;
3060 }
3061 }
3062
3063 return "????";
3064}
f934c4d9
LR		 3065
3066void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
3067{
3068 int used;
3069
3070 /* chipsets >= AR9280 are single-chip */
7a37081e 3071 if (AR_SREV_9280_20_OR_LATER(ah)) {
f934c4d9
LR		 3072 used = snprintf(hw_name, len,
3073 "Atheros AR%s Rev:%x",
3074 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3075 ah->hw_version.macRev);
3076 }
3077 else {
3078 used = snprintf(hw_name, len,
3079 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
3080 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3081 ah->hw_version.macRev,
3082 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
3083 AR_RADIO_SREV_MAJOR)),
3084 ah->hw_version.phyRev);
3085 }
3086
3087 hw_name[used] = '\0';
3088}
3089EXPORT_SYMBOL(ath9k_hw_name);
Linux kernel - Deliverables
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