ath9k: Reduce PLL Settle time and eliminate redundant PLL calls.
[linux-2.6.git] / drivers / net / wireless / ath / ath9k / hw.c
1 /*
2  * Copyright (c) 2008-2009 Atheros Communications Inc.
3  *
4  * Permission to use, copy, modify, and/or distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16
17 #include <linux/io.h>
18 #include <asm/unaligned.h>
19
20 #include "hw.h"
21 #include "rc.h"
22 #include "initvals.h"
23
24 #define ATH9K_CLOCK_RATE_CCK            22
25 #define ATH9K_CLOCK_RATE_5GHZ_OFDM      40
26 #define ATH9K_CLOCK_RATE_2GHZ_OFDM      44
27
28 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
29 static void ath9k_hw_set_regs(struct ath_hw *ah, struct ath9k_channel *chan);
30 static u32 ath9k_hw_ini_fixup(struct ath_hw *ah,
31                               struct ar5416_eeprom_def *pEepData,
32                               u32 reg, u32 value);
33 static void ath9k_hw_9280_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan);
34 static void ath9k_hw_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan);
35
36 /********************/
37 /* Helper Functions */
38 /********************/
39
40 static u32 ath9k_hw_mac_usec(struct ath_hw *ah, u32 clks)
41 {
42         struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
43
44         if (!ah->curchan) /* should really check for CCK instead */
45                 return clks / ATH9K_CLOCK_RATE_CCK;
46         if (conf->channel->band == IEEE80211_BAND_2GHZ)
47                 return clks / ATH9K_CLOCK_RATE_2GHZ_OFDM;
48
49         return clks / ATH9K_CLOCK_RATE_5GHZ_OFDM;
50 }
51
52 static u32 ath9k_hw_mac_to_usec(struct ath_hw *ah, u32 clks)
53 {
54         struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
55
56         if (conf_is_ht40(conf))
57                 return ath9k_hw_mac_usec(ah, clks) / 2;
58         else
59                 return ath9k_hw_mac_usec(ah, clks);
60 }
61
62 static u32 ath9k_hw_mac_clks(struct ath_hw *ah, u32 usecs)
63 {
64         struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
65
66         if (!ah->curchan) /* should really check for CCK instead */
67                 return usecs *ATH9K_CLOCK_RATE_CCK;
68         if (conf->channel->band == IEEE80211_BAND_2GHZ)
69                 return usecs *ATH9K_CLOCK_RATE_2GHZ_OFDM;
70         return usecs *ATH9K_CLOCK_RATE_5GHZ_OFDM;
71 }
72
73 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
74 {
75         struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
76
77         if (conf_is_ht40(conf))
78                 return ath9k_hw_mac_clks(ah, usecs) * 2;
79         else
80                 return ath9k_hw_mac_clks(ah, usecs);
81 }
82
83 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
84 {
85         int i;
86
87         BUG_ON(timeout < AH_TIME_QUANTUM);
88
89         for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
90                 if ((REG_READ(ah, reg) & mask) == val)
91                         return true;
92
93                 udelay(AH_TIME_QUANTUM);
94         }
95
96         ath_print(ath9k_hw_common(ah), ATH_DBG_ANY,
97                   "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
98                   timeout, reg, REG_READ(ah, reg), mask, val);
99
100         return false;
101 }
102
103 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
104 {
105         u32 retval;
106         int i;
107
108         for (i = 0, retval = 0; i < n; i++) {
109                 retval = (retval << 1) | (val & 1);
110                 val >>= 1;
111         }
112         return retval;
113 }
114
115 bool ath9k_get_channel_edges(struct ath_hw *ah,
116                              u16 flags, u16 *low,
117                              u16 *high)
118 {
119         struct ath9k_hw_capabilities *pCap = &ah->caps;
120
121         if (flags & CHANNEL_5GHZ) {
122                 *low = pCap->low_5ghz_chan;
123                 *high = pCap->high_5ghz_chan;
124                 return true;
125         }
126         if ((flags & CHANNEL_2GHZ)) {
127                 *low = pCap->low_2ghz_chan;
128                 *high = pCap->high_2ghz_chan;
129                 return true;
130         }
131         return false;
132 }
133
134 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
135                            const struct ath_rate_table *rates,
136                            u32 frameLen, u16 rateix,
137                            bool shortPreamble)
138 {
139         u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
140         u32 kbps;
141
142         kbps = rates->info[rateix].ratekbps;
143
144         if (kbps == 0)
145                 return 0;
146
147         switch (rates->info[rateix].phy) {
148         case WLAN_RC_PHY_CCK:
149                 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
150                 if (shortPreamble && rates->info[rateix].short_preamble)
151                         phyTime >>= 1;
152                 numBits = frameLen << 3;
153                 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
154                 break;
155         case WLAN_RC_PHY_OFDM:
156                 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
157                         bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
158                         numBits = OFDM_PLCP_BITS + (frameLen << 3);
159                         numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
160                         txTime = OFDM_SIFS_TIME_QUARTER
161                                 + OFDM_PREAMBLE_TIME_QUARTER
162                                 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
163                 } else if (ah->curchan &&
164                            IS_CHAN_HALF_RATE(ah->curchan)) {
165                         bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
166                         numBits = OFDM_PLCP_BITS + (frameLen << 3);
167                         numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
168                         txTime = OFDM_SIFS_TIME_HALF +
169                                 OFDM_PREAMBLE_TIME_HALF
170                                 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
171                 } else {
172                         bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
173                         numBits = OFDM_PLCP_BITS + (frameLen << 3);
174                         numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
175                         txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
176                                 + (numSymbols * OFDM_SYMBOL_TIME);
177                 }
178                 break;
179         default:
180                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
181                           "Unknown phy %u (rate ix %u)\n",
182                           rates->info[rateix].phy, rateix);
183                 txTime = 0;
184                 break;
185         }
186
187         return txTime;
188 }
189
190 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
191                                   struct ath9k_channel *chan,
192                                   struct chan_centers *centers)
193 {
194         int8_t extoff;
195
196         if (!IS_CHAN_HT40(chan)) {
197                 centers->ctl_center = centers->ext_center =
198                         centers->synth_center = chan->channel;
199                 return;
200         }
201
202         if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
203             (chan->chanmode == CHANNEL_G_HT40PLUS)) {
204                 centers->synth_center =
205                         chan->channel + HT40_CHANNEL_CENTER_SHIFT;
206                 extoff = 1;
207         } else {
208                 centers->synth_center =
209                         chan->channel - HT40_CHANNEL_CENTER_SHIFT;
210                 extoff = -1;
211         }
212
213         centers->ctl_center =
214                 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
215         /* 25 MHz spacing is supported by hw but not on upper layers */
216         centers->ext_center =
217                 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
218 }
219
220 /******************/
221 /* Chip Revisions */
222 /******************/
223
224 static void ath9k_hw_read_revisions(struct ath_hw *ah)
225 {
226         u32 val;
227
228         val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
229
230         if (val == 0xFF) {
231                 val = REG_READ(ah, AR_SREV);
232                 ah->hw_version.macVersion =
233                         (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
234                 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
235                 ah->is_pciexpress = (val & AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
236         } else {
237                 if (!AR_SREV_9100(ah))
238                         ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
239
240                 ah->hw_version.macRev = val & AR_SREV_REVISION;
241
242                 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
243                         ah->is_pciexpress = true;
244         }
245 }
246
247 static int ath9k_hw_get_radiorev(struct ath_hw *ah)
248 {
249         u32 val;
250         int i;
251
252         REG_WRITE(ah, AR_PHY(0x36), 0x00007058);
253
254         for (i = 0; i < 8; i++)
255                 REG_WRITE(ah, AR_PHY(0x20), 0x00010000);
256         val = (REG_READ(ah, AR_PHY(256)) >> 24) & 0xff;
257         val = ((val & 0xf0) >> 4) | ((val & 0x0f) << 4);
258
259         return ath9k_hw_reverse_bits(val, 8);
260 }
261
262 /************************************/
263 /* HW Attach, Detach, Init Routines */
264 /************************************/
265
266 static void ath9k_hw_disablepcie(struct ath_hw *ah)
267 {
268         if (AR_SREV_9100(ah))
269                 return;
270
271         REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
272         REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
273         REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
274         REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
275         REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
276         REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
277         REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
278         REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
279         REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
280
281         REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
282 }
283
284 static bool ath9k_hw_chip_test(struct ath_hw *ah)
285 {
286         struct ath_common *common = ath9k_hw_common(ah);
287         u32 regAddr[2] = { AR_STA_ID0, AR_PHY_BASE + (8 << 2) };
288         u32 regHold[2];
289         u32 patternData[4] = { 0x55555555,
290                                0xaaaaaaaa,
291                                0x66666666,
292                                0x99999999 };
293         int i, j;
294
295         for (i = 0; i < 2; i++) {
296                 u32 addr = regAddr[i];
297                 u32 wrData, rdData;
298
299                 regHold[i] = REG_READ(ah, addr);
300                 for (j = 0; j < 0x100; j++) {
301                         wrData = (j << 16) | j;
302                         REG_WRITE(ah, addr, wrData);
303                         rdData = REG_READ(ah, addr);
304                         if (rdData != wrData) {
305                                 ath_print(common, ATH_DBG_FATAL,
306                                           "address test failed "
307                                           "addr: 0x%08x - wr:0x%08x != "
308                                           "rd:0x%08x\n",
309                                           addr, wrData, rdData);
310                                 return false;
311                         }
312                 }
313                 for (j = 0; j < 4; j++) {
314                         wrData = patternData[j];
315                         REG_WRITE(ah, addr, wrData);
316                         rdData = REG_READ(ah, addr);
317                         if (wrData != rdData) {
318                                 ath_print(common, ATH_DBG_FATAL,
319                                           "address test failed "
320                                           "addr: 0x%08x - wr:0x%08x != "
321                                           "rd:0x%08x\n",
322                                           addr, wrData, rdData);
323                                 return false;
324                         }
325                 }
326                 REG_WRITE(ah, regAddr[i], regHold[i]);
327         }
328         udelay(100);
329
330         return true;
331 }
332
333 static const char *ath9k_hw_devname(u16 devid)
334 {
335         switch (devid) {
336         case AR5416_DEVID_PCI:
337                 return "Atheros 5416";
338         case AR5416_DEVID_PCIE:
339                 return "Atheros 5418";
340         case AR9160_DEVID_PCI:
341                 return "Atheros 9160";
342         case AR5416_AR9100_DEVID:
343                 return "Atheros 9100";
344         case AR9280_DEVID_PCI:
345         case AR9280_DEVID_PCIE:
346                 return "Atheros 9280";
347         case AR9285_DEVID_PCIE:
348                 return "Atheros 9285";
349         case AR5416_DEVID_AR9287_PCI:
350         case AR5416_DEVID_AR9287_PCIE:
351                 return "Atheros 9287";
352         }
353
354         return NULL;
355 }
356
357 static void ath9k_hw_init_config(struct ath_hw *ah)
358 {
359         int i;
360
361         ah->config.dma_beacon_response_time = 2;
362         ah->config.sw_beacon_response_time = 10;
363         ah->config.additional_swba_backoff = 0;
364         ah->config.ack_6mb = 0x0;
365         ah->config.cwm_ignore_extcca = 0;
366         ah->config.pcie_powersave_enable = 0;
367         ah->config.pcie_clock_req = 0;
368         ah->config.pcie_waen = 0;
369         ah->config.analog_shiftreg = 1;
370         ah->config.ht_enable = 1;
371         ah->config.ofdm_trig_low = 200;
372         ah->config.ofdm_trig_high = 500;
373         ah->config.cck_trig_high = 200;
374         ah->config.cck_trig_low = 100;
375         ah->config.enable_ani = 1;
376         ah->config.diversity_control = ATH9K_ANT_VARIABLE;
377         ah->config.antenna_switch_swap = 0;
378
379         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
380                 ah->config.spurchans[i][0] = AR_NO_SPUR;
381                 ah->config.spurchans[i][1] = AR_NO_SPUR;
382         }
383
384         ah->config.intr_mitigation = true;
385
386         /*
387          * We need this for PCI devices only (Cardbus, PCI, miniPCI)
388          * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
389          * This means we use it for all AR5416 devices, and the few
390          * minor PCI AR9280 devices out there.
391          *
392          * Serialization is required because these devices do not handle
393          * well the case of two concurrent reads/writes due to the latency
394          * involved. During one read/write another read/write can be issued
395          * on another CPU while the previous read/write may still be working
396          * on our hardware, if we hit this case the hardware poops in a loop.
397          * We prevent this by serializing reads and writes.
398          *
399          * This issue is not present on PCI-Express devices or pre-AR5416
400          * devices (legacy, 802.11abg).
401          */
402         if (num_possible_cpus() > 1)
403                 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
404 }
405
406 static void ath9k_hw_init_defaults(struct ath_hw *ah)
407 {
408         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
409
410         regulatory->country_code = CTRY_DEFAULT;
411         regulatory->power_limit = MAX_RATE_POWER;
412         regulatory->tp_scale = ATH9K_TP_SCALE_MAX;
413
414         ah->hw_version.magic = AR5416_MAGIC;
415         ah->hw_version.subvendorid = 0;
416
417         ah->ah_flags = 0;
418         if (ah->hw_version.devid == AR5416_AR9100_DEVID)
419                 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
420         if (!AR_SREV_9100(ah))
421                 ah->ah_flags = AH_USE_EEPROM;
422
423         ah->atim_window = 0;
424         ah->sta_id1_defaults = AR_STA_ID1_CRPT_MIC_ENABLE;
425         ah->beacon_interval = 100;
426         ah->enable_32kHz_clock = DONT_USE_32KHZ;
427         ah->slottime = (u32) -1;
428         ah->acktimeout = (u32) -1;
429         ah->ctstimeout = (u32) -1;
430         ah->globaltxtimeout = (u32) -1;
431
432         ah->gbeacon_rate = 0;
433
434         ah->power_mode = ATH9K_PM_UNDEFINED;
435 }
436
437 static int ath9k_hw_rfattach(struct ath_hw *ah)
438 {
439         bool rfStatus = false;
440         int ecode = 0;
441
442         rfStatus = ath9k_hw_init_rf(ah, &ecode);
443         if (!rfStatus) {
444                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
445                           "RF setup failed, status: %u\n", ecode);
446                 return ecode;
447         }
448
449         return 0;
450 }
451
452 static int ath9k_hw_rf_claim(struct ath_hw *ah)
453 {
454         u32 val;
455
456         REG_WRITE(ah, AR_PHY(0), 0x00000007);
457
458         val = ath9k_hw_get_radiorev(ah);
459         switch (val & AR_RADIO_SREV_MAJOR) {
460         case 0:
461                 val = AR_RAD5133_SREV_MAJOR;
462                 break;
463         case AR_RAD5133_SREV_MAJOR:
464         case AR_RAD5122_SREV_MAJOR:
465         case AR_RAD2133_SREV_MAJOR:
466         case AR_RAD2122_SREV_MAJOR:
467                 break;
468         default:
469                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
470                           "Radio Chip Rev 0x%02X not supported\n",
471                           val & AR_RADIO_SREV_MAJOR);
472                 return -EOPNOTSUPP;
473         }
474
475         ah->hw_version.analog5GhzRev = val;
476
477         return 0;
478 }
479
480 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
481 {
482         struct ath_common *common = ath9k_hw_common(ah);
483         u32 sum;
484         int i;
485         u16 eeval;
486
487         sum = 0;
488         for (i = 0; i < 3; i++) {
489                 eeval = ah->eep_ops->get_eeprom(ah, AR_EEPROM_MAC(i));
490                 sum += eeval;
491                 common->macaddr[2 * i] = eeval >> 8;
492                 common->macaddr[2 * i + 1] = eeval & 0xff;
493         }
494         if (sum == 0 || sum == 0xffff * 3)
495                 return -EADDRNOTAVAIL;
496
497         return 0;
498 }
499
500 static void ath9k_hw_init_rxgain_ini(struct ath_hw *ah)
501 {
502         u32 rxgain_type;
503
504         if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >= AR5416_EEP_MINOR_VER_17) {
505                 rxgain_type = ah->eep_ops->get_eeprom(ah, EEP_RXGAIN_TYPE);
506
507                 if (rxgain_type == AR5416_EEP_RXGAIN_13DB_BACKOFF)
508                         INIT_INI_ARRAY(&ah->iniModesRxGain,
509                         ar9280Modes_backoff_13db_rxgain_9280_2,
510                         ARRAY_SIZE(ar9280Modes_backoff_13db_rxgain_9280_2), 6);
511                 else if (rxgain_type == AR5416_EEP_RXGAIN_23DB_BACKOFF)
512                         INIT_INI_ARRAY(&ah->iniModesRxGain,
513                         ar9280Modes_backoff_23db_rxgain_9280_2,
514                         ARRAY_SIZE(ar9280Modes_backoff_23db_rxgain_9280_2), 6);
515                 else
516                         INIT_INI_ARRAY(&ah->iniModesRxGain,
517                         ar9280Modes_original_rxgain_9280_2,
518                         ARRAY_SIZE(ar9280Modes_original_rxgain_9280_2), 6);
519         } else {
520                 INIT_INI_ARRAY(&ah->iniModesRxGain,
521                         ar9280Modes_original_rxgain_9280_2,
522                         ARRAY_SIZE(ar9280Modes_original_rxgain_9280_2), 6);
523         }
524 }
525
526 static void ath9k_hw_init_txgain_ini(struct ath_hw *ah)
527 {
528         u32 txgain_type;
529
530         if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >= AR5416_EEP_MINOR_VER_19) {
531                 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);
532
533                 if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER)
534                         INIT_INI_ARRAY(&ah->iniModesTxGain,
535                         ar9280Modes_high_power_tx_gain_9280_2,
536                         ARRAY_SIZE(ar9280Modes_high_power_tx_gain_9280_2), 6);
537                 else
538                         INIT_INI_ARRAY(&ah->iniModesTxGain,
539                         ar9280Modes_original_tx_gain_9280_2,
540                         ARRAY_SIZE(ar9280Modes_original_tx_gain_9280_2), 6);
541         } else {
542                 INIT_INI_ARRAY(&ah->iniModesTxGain,
543                 ar9280Modes_original_tx_gain_9280_2,
544                 ARRAY_SIZE(ar9280Modes_original_tx_gain_9280_2), 6);
545         }
546 }
547
548 static int ath9k_hw_post_init(struct ath_hw *ah)
549 {
550         int ecode;
551
552         if (!ath9k_hw_chip_test(ah))
553                 return -ENODEV;
554
555         ecode = ath9k_hw_rf_claim(ah);
556         if (ecode != 0)
557                 return ecode;
558
559         ecode = ath9k_hw_eeprom_init(ah);
560         if (ecode != 0)
561                 return ecode;
562
563         ath_print(ath9k_hw_common(ah), ATH_DBG_CONFIG,
564                   "Eeprom VER: %d, REV: %d\n",
565                   ah->eep_ops->get_eeprom_ver(ah),
566                   ah->eep_ops->get_eeprom_rev(ah));
567
568         ecode = ath9k_hw_rfattach(ah);
569         if (ecode != 0)
570                 return ecode;
571
572         if (!AR_SREV_9100(ah)) {
573                 ath9k_hw_ani_setup(ah);
574                 ath9k_hw_ani_init(ah);
575         }
576
577         return 0;
578 }
579
580 static bool ath9k_hw_devid_supported(u16 devid)
581 {
582         switch (devid) {
583         case AR5416_DEVID_PCI:
584         case AR5416_DEVID_PCIE:
585         case AR5416_AR9100_DEVID:
586         case AR9160_DEVID_PCI:
587         case AR9280_DEVID_PCI:
588         case AR9280_DEVID_PCIE:
589         case AR9285_DEVID_PCIE:
590         case AR5416_DEVID_AR9287_PCI:
591         case AR5416_DEVID_AR9287_PCIE:
592                 return true;
593         default:
594                 break;
595         }
596         return false;
597 }
598
599 static bool ath9k_hw_macversion_supported(u32 macversion)
600 {
601         switch (macversion) {
602         case AR_SREV_VERSION_5416_PCI:
603         case AR_SREV_VERSION_5416_PCIE:
604         case AR_SREV_VERSION_9160:
605         case AR_SREV_VERSION_9100:
606         case AR_SREV_VERSION_9280:
607         case AR_SREV_VERSION_9285:
608         case AR_SREV_VERSION_9287:
609                 return true;
610         /* Not yet */
611         case AR_SREV_VERSION_9271:
612         default:
613                 break;
614         }
615         return false;
616 }
617
618 static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
619 {
620         if (AR_SREV_9160_10_OR_LATER(ah)) {
621                 if (AR_SREV_9280_10_OR_LATER(ah)) {
622                         ah->iq_caldata.calData = &iq_cal_single_sample;
623                         ah->adcgain_caldata.calData =
624                                 &adc_gain_cal_single_sample;
625                         ah->adcdc_caldata.calData =
626                                 &adc_dc_cal_single_sample;
627                         ah->adcdc_calinitdata.calData =
628                                 &adc_init_dc_cal;
629                 } else {
630                         ah->iq_caldata.calData = &iq_cal_multi_sample;
631                         ah->adcgain_caldata.calData =
632                                 &adc_gain_cal_multi_sample;
633                         ah->adcdc_caldata.calData =
634                                 &adc_dc_cal_multi_sample;
635                         ah->adcdc_calinitdata.calData =
636                                 &adc_init_dc_cal;
637                 }
638                 ah->supp_cals = ADC_GAIN_CAL | ADC_DC_CAL | IQ_MISMATCH_CAL;
639         }
640 }
641
642 static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
643 {
644         if (AR_SREV_9271(ah)) {
645                 INIT_INI_ARRAY(&ah->iniModes, ar9271Modes_9271_1_0,
646                                ARRAY_SIZE(ar9271Modes_9271_1_0), 6);
647                 INIT_INI_ARRAY(&ah->iniCommon, ar9271Common_9271_1_0,
648                                ARRAY_SIZE(ar9271Common_9271_1_0), 2);
649                 return;
650         }
651
652         if (AR_SREV_9287_11_OR_LATER(ah)) {
653                 INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_1,
654                                 ARRAY_SIZE(ar9287Modes_9287_1_1), 6);
655                 INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_1,
656                                 ARRAY_SIZE(ar9287Common_9287_1_1), 2);
657                 if (ah->config.pcie_clock_req)
658                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
659                         ar9287PciePhy_clkreq_off_L1_9287_1_1,
660                         ARRAY_SIZE(ar9287PciePhy_clkreq_off_L1_9287_1_1), 2);
661                 else
662                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
663                         ar9287PciePhy_clkreq_always_on_L1_9287_1_1,
664                         ARRAY_SIZE(ar9287PciePhy_clkreq_always_on_L1_9287_1_1),
665                                         2);
666         } else if (AR_SREV_9287_10_OR_LATER(ah)) {
667                 INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_0,
668                                 ARRAY_SIZE(ar9287Modes_9287_1_0), 6);
669                 INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_0,
670                                 ARRAY_SIZE(ar9287Common_9287_1_0), 2);
671
672                 if (ah->config.pcie_clock_req)
673                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
674                         ar9287PciePhy_clkreq_off_L1_9287_1_0,
675                         ARRAY_SIZE(ar9287PciePhy_clkreq_off_L1_9287_1_0), 2);
676                 else
677                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
678                         ar9287PciePhy_clkreq_always_on_L1_9287_1_0,
679                         ARRAY_SIZE(ar9287PciePhy_clkreq_always_on_L1_9287_1_0),
680                                   2);
681         } else if (AR_SREV_9285_12_OR_LATER(ah)) {
682
683
684                 INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285_1_2,
685                                ARRAY_SIZE(ar9285Modes_9285_1_2), 6);
686                 INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285_1_2,
687                                ARRAY_SIZE(ar9285Common_9285_1_2), 2);
688
689                 if (ah->config.pcie_clock_req) {
690                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
691                         ar9285PciePhy_clkreq_off_L1_9285_1_2,
692                         ARRAY_SIZE(ar9285PciePhy_clkreq_off_L1_9285_1_2), 2);
693                 } else {
694                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
695                         ar9285PciePhy_clkreq_always_on_L1_9285_1_2,
696                         ARRAY_SIZE(ar9285PciePhy_clkreq_always_on_L1_9285_1_2),
697                                   2);
698                 }
699         } else if (AR_SREV_9285_10_OR_LATER(ah)) {
700                 INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285,
701                                ARRAY_SIZE(ar9285Modes_9285), 6);
702                 INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285,
703                                ARRAY_SIZE(ar9285Common_9285), 2);
704
705                 if (ah->config.pcie_clock_req) {
706                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
707                         ar9285PciePhy_clkreq_off_L1_9285,
708                         ARRAY_SIZE(ar9285PciePhy_clkreq_off_L1_9285), 2);
709                 } else {
710                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
711                         ar9285PciePhy_clkreq_always_on_L1_9285,
712                         ARRAY_SIZE(ar9285PciePhy_clkreq_always_on_L1_9285), 2);
713                 }
714         } else if (AR_SREV_9280_20_OR_LATER(ah)) {
715                 INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280_2,
716                                ARRAY_SIZE(ar9280Modes_9280_2), 6);
717                 INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280_2,
718                                ARRAY_SIZE(ar9280Common_9280_2), 2);
719
720                 if (ah->config.pcie_clock_req) {
721                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
722                                ar9280PciePhy_clkreq_off_L1_9280,
723                                ARRAY_SIZE(ar9280PciePhy_clkreq_off_L1_9280),2);
724                 } else {
725                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
726                                ar9280PciePhy_clkreq_always_on_L1_9280,
727                                ARRAY_SIZE(ar9280PciePhy_clkreq_always_on_L1_9280), 2);
728                 }
729                 INIT_INI_ARRAY(&ah->iniModesAdditional,
730                                ar9280Modes_fast_clock_9280_2,
731                                ARRAY_SIZE(ar9280Modes_fast_clock_9280_2), 3);
732         } else if (AR_SREV_9280_10_OR_LATER(ah)) {
733                 INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280,
734                                ARRAY_SIZE(ar9280Modes_9280), 6);
735                 INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280,
736                                ARRAY_SIZE(ar9280Common_9280), 2);
737         } else if (AR_SREV_9160_10_OR_LATER(ah)) {
738                 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9160,
739                                ARRAY_SIZE(ar5416Modes_9160), 6);
740                 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9160,
741                                ARRAY_SIZE(ar5416Common_9160), 2);
742                 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0_9160,
743                                ARRAY_SIZE(ar5416Bank0_9160), 2);
744                 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain_9160,
745                                ARRAY_SIZE(ar5416BB_RfGain_9160), 3);
746                 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1_9160,
747                                ARRAY_SIZE(ar5416Bank1_9160), 2);
748                 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2_9160,
749                                ARRAY_SIZE(ar5416Bank2_9160), 2);
750                 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3_9160,
751                                ARRAY_SIZE(ar5416Bank3_9160), 3);
752                 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6_9160,
753                                ARRAY_SIZE(ar5416Bank6_9160), 3);
754                 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC_9160,
755                                ARRAY_SIZE(ar5416Bank6TPC_9160), 3);
756                 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7_9160,
757                                ARRAY_SIZE(ar5416Bank7_9160), 2);
758                 if (AR_SREV_9160_11(ah)) {
759                         INIT_INI_ARRAY(&ah->iniAddac,
760                                        ar5416Addac_91601_1,
761                                        ARRAY_SIZE(ar5416Addac_91601_1), 2);
762                 } else {
763                         INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9160,
764                                        ARRAY_SIZE(ar5416Addac_9160), 2);
765                 }
766         } else if (AR_SREV_9100_OR_LATER(ah)) {
767                 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9100,
768                                ARRAY_SIZE(ar5416Modes_9100), 6);
769                 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9100,
770                                ARRAY_SIZE(ar5416Common_9100), 2);
771                 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0_9100,
772                                ARRAY_SIZE(ar5416Bank0_9100), 2);
773                 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain_9100,
774                                ARRAY_SIZE(ar5416BB_RfGain_9100), 3);
775                 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1_9100,
776                                ARRAY_SIZE(ar5416Bank1_9100), 2);
777                 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2_9100,
778                                ARRAY_SIZE(ar5416Bank2_9100), 2);
779                 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3_9100,
780                                ARRAY_SIZE(ar5416Bank3_9100), 3);
781                 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6_9100,
782                                ARRAY_SIZE(ar5416Bank6_9100), 3);
783                 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC_9100,
784                                ARRAY_SIZE(ar5416Bank6TPC_9100), 3);
785                 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7_9100,
786                                ARRAY_SIZE(ar5416Bank7_9100), 2);
787                 INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9100,
788                                ARRAY_SIZE(ar5416Addac_9100), 2);
789         } else {
790                 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes,
791                                ARRAY_SIZE(ar5416Modes), 6);
792                 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common,
793                                ARRAY_SIZE(ar5416Common), 2);
794                 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0,
795                                ARRAY_SIZE(ar5416Bank0), 2);
796                 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain,
797                                ARRAY_SIZE(ar5416BB_RfGain), 3);
798                 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1,
799                                ARRAY_SIZE(ar5416Bank1), 2);
800                 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2,
801                                ARRAY_SIZE(ar5416Bank2), 2);
802                 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3,
803                                ARRAY_SIZE(ar5416Bank3), 3);
804                 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6,
805                                ARRAY_SIZE(ar5416Bank6), 3);
806                 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC,
807                                ARRAY_SIZE(ar5416Bank6TPC), 3);
808                 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7,
809                                ARRAY_SIZE(ar5416Bank7), 2);
810                 INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac,
811                                ARRAY_SIZE(ar5416Addac), 2);
812         }
813 }
814
815 static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
816 {
817         if (AR_SREV_9287_11_OR_LATER(ah))
818                 INIT_INI_ARRAY(&ah->iniModesRxGain,
819                 ar9287Modes_rx_gain_9287_1_1,
820                 ARRAY_SIZE(ar9287Modes_rx_gain_9287_1_1), 6);
821         else if (AR_SREV_9287_10(ah))
822                 INIT_INI_ARRAY(&ah->iniModesRxGain,
823                 ar9287Modes_rx_gain_9287_1_0,
824                 ARRAY_SIZE(ar9287Modes_rx_gain_9287_1_0), 6);
825         else if (AR_SREV_9280_20(ah))
826                 ath9k_hw_init_rxgain_ini(ah);
827
828         if (AR_SREV_9287_11_OR_LATER(ah)) {
829                 INIT_INI_ARRAY(&ah->iniModesTxGain,
830                 ar9287Modes_tx_gain_9287_1_1,
831                 ARRAY_SIZE(ar9287Modes_tx_gain_9287_1_1), 6);
832         } else if (AR_SREV_9287_10(ah)) {
833                 INIT_INI_ARRAY(&ah->iniModesTxGain,
834                 ar9287Modes_tx_gain_9287_1_0,
835                 ARRAY_SIZE(ar9287Modes_tx_gain_9287_1_0), 6);
836         } else if (AR_SREV_9280_20(ah)) {
837                 ath9k_hw_init_txgain_ini(ah);
838         } else if (AR_SREV_9285_12_OR_LATER(ah)) {
839                 u32 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);
840
841                 /* txgain table */
842                 if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER) {
843                         INIT_INI_ARRAY(&ah->iniModesTxGain,
844                         ar9285Modes_high_power_tx_gain_9285_1_2,
845                         ARRAY_SIZE(ar9285Modes_high_power_tx_gain_9285_1_2), 6);
846                 } else {
847                         INIT_INI_ARRAY(&ah->iniModesTxGain,
848                         ar9285Modes_original_tx_gain_9285_1_2,
849                         ARRAY_SIZE(ar9285Modes_original_tx_gain_9285_1_2), 6);
850                 }
851
852         }
853 }
854
855 static void ath9k_hw_init_11a_eeprom_fix(struct ath_hw *ah)
856 {
857         u32 i, j;
858
859         if ((ah->hw_version.devid == AR9280_DEVID_PCI) &&
860             test_bit(ATH9K_MODE_11A, ah->caps.wireless_modes)) {
861
862                 /* EEPROM Fixup */
863                 for (i = 0; i < ah->iniModes.ia_rows; i++) {
864                         u32 reg = INI_RA(&ah->iniModes, i, 0);
865
866                         for (j = 1; j < ah->iniModes.ia_columns; j++) {
867                                 u32 val = INI_RA(&ah->iniModes, i, j);
868
869                                 INI_RA(&ah->iniModes, i, j) =
870                                         ath9k_hw_ini_fixup(ah,
871                                                            &ah->eeprom.def,
872                                                            reg, val);
873                         }
874                 }
875         }
876 }
877
878 int ath9k_hw_init(struct ath_hw *ah)
879 {
880         struct ath_common *common = ath9k_hw_common(ah);
881         int r = 0;
882
883         if (!ath9k_hw_devid_supported(ah->hw_version.devid))
884                 return -EOPNOTSUPP;
885
886         ath9k_hw_init_defaults(ah);
887         ath9k_hw_init_config(ah);
888
889         if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
890                 ath_print(common, ATH_DBG_FATAL,
891                           "Couldn't reset chip\n");
892                 return -EIO;
893         }
894
895         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
896                 ath_print(common, ATH_DBG_FATAL, "Couldn't wakeup chip\n");
897                 return -EIO;
898         }
899
900         if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
901                 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
902                     (AR_SREV_9280(ah) && !ah->is_pciexpress)) {
903                         ah->config.serialize_regmode =
904                                 SER_REG_MODE_ON;
905                 } else {
906                         ah->config.serialize_regmode =
907                                 SER_REG_MODE_OFF;
908                 }
909         }
910
911         ath_print(common, ATH_DBG_RESET, "serialize_regmode is %d\n",
912                 ah->config.serialize_regmode);
913
914         if (!ath9k_hw_macversion_supported(ah->hw_version.macVersion)) {
915                 ath_print(common, ATH_DBG_FATAL,
916                           "Mac Chip Rev 0x%02x.%x is not supported by "
917                           "this driver\n", ah->hw_version.macVersion,
918                           ah->hw_version.macRev);
919                 return -EOPNOTSUPP;
920         }
921
922         if (AR_SREV_9100(ah)) {
923                 ah->iq_caldata.calData = &iq_cal_multi_sample;
924                 ah->supp_cals = IQ_MISMATCH_CAL;
925                 ah->is_pciexpress = false;
926         }
927
928         if (AR_SREV_9271(ah))
929                 ah->is_pciexpress = false;
930
931         ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
932
933         ath9k_hw_init_cal_settings(ah);
934
935         ah->ani_function = ATH9K_ANI_ALL;
936         if (AR_SREV_9280_10_OR_LATER(ah))
937                 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
938
939         ath9k_hw_init_mode_regs(ah);
940
941         if (ah->is_pciexpress)
942                 ath9k_hw_configpcipowersave(ah, 0, 0);
943         else
944                 ath9k_hw_disablepcie(ah);
945
946         /* Support for Japan ch.14 (2484) spread */
947         if (AR_SREV_9287_11_OR_LATER(ah)) {
948                 INIT_INI_ARRAY(&ah->iniCckfirNormal,
949                        ar9287Common_normal_cck_fir_coeff_92871_1,
950                        ARRAY_SIZE(ar9287Common_normal_cck_fir_coeff_92871_1), 2);
951                 INIT_INI_ARRAY(&ah->iniCckfirJapan2484,
952                        ar9287Common_japan_2484_cck_fir_coeff_92871_1,
953                        ARRAY_SIZE(ar9287Common_japan_2484_cck_fir_coeff_92871_1), 2);
954         }
955
956         r = ath9k_hw_post_init(ah);
957         if (r)
958                 return r;
959
960         ath9k_hw_init_mode_gain_regs(ah);
961         ath9k_hw_fill_cap_info(ah);
962         ath9k_hw_init_11a_eeprom_fix(ah);
963
964         r = ath9k_hw_init_macaddr(ah);
965         if (r) {
966                 ath_print(common, ATH_DBG_FATAL,
967                           "Failed to initialize MAC address\n");
968                 return r;
969         }
970
971         if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
972                 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
973         else
974                 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
975
976         ath9k_init_nfcal_hist_buffer(ah);
977
978         return 0;
979 }
980
981 static void ath9k_hw_init_bb(struct ath_hw *ah,
982                              struct ath9k_channel *chan)
983 {
984         u32 synthDelay;
985
986         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
987         if (IS_CHAN_B(chan))
988                 synthDelay = (4 * synthDelay) / 22;
989         else
990                 synthDelay /= 10;
991
992         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
993
994         udelay(synthDelay + BASE_ACTIVATE_DELAY);
995 }
996
997 static void ath9k_hw_init_qos(struct ath_hw *ah)
998 {
999         REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
1000         REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
1001
1002         REG_WRITE(ah, AR_QOS_NO_ACK,
1003                   SM(2, AR_QOS_NO_ACK_TWO_BIT) |
1004                   SM(5, AR_QOS_NO_ACK_BIT_OFF) |
1005                   SM(0, AR_QOS_NO_ACK_BYTE_OFF));
1006
1007         REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
1008         REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
1009         REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
1010         REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
1011         REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
1012 }
1013
1014 static void ath9k_hw_init_pll(struct ath_hw *ah,
1015                               struct ath9k_channel *chan)
1016 {
1017         u32 pll;
1018
1019         if (AR_SREV_9100(ah)) {
1020                 if (chan && IS_CHAN_5GHZ(chan))
1021                         pll = 0x1450;
1022                 else
1023                         pll = 0x1458;
1024         } else {
1025                 if (AR_SREV_9280_10_OR_LATER(ah)) {
1026                         pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
1027
1028                         if (chan && IS_CHAN_HALF_RATE(chan))
1029                                 pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
1030                         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1031                                 pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
1032
1033                         if (chan && IS_CHAN_5GHZ(chan)) {
1034                                 pll |= SM(0x28, AR_RTC_9160_PLL_DIV);
1035
1036
1037                                 if (AR_SREV_9280_20(ah)) {
1038                                         if (((chan->channel % 20) == 0)
1039                                             || ((chan->channel % 10) == 0))
1040                                                 pll = 0x2850;
1041                                         else
1042                                                 pll = 0x142c;
1043                                 }
1044                         } else {
1045                                 pll |= SM(0x2c, AR_RTC_9160_PLL_DIV);
1046                         }
1047
1048                 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1049
1050                         pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
1051
1052                         if (chan && IS_CHAN_HALF_RATE(chan))
1053                                 pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
1054                         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1055                                 pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
1056
1057                         if (chan && IS_CHAN_5GHZ(chan))
1058                                 pll |= SM(0x50, AR_RTC_9160_PLL_DIV);
1059                         else
1060                                 pll |= SM(0x58, AR_RTC_9160_PLL_DIV);
1061                 } else {
1062                         pll = AR_RTC_PLL_REFDIV_5 | AR_RTC_PLL_DIV2;
1063
1064                         if (chan && IS_CHAN_HALF_RATE(chan))
1065                                 pll |= SM(0x1, AR_RTC_PLL_CLKSEL);
1066                         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1067                                 pll |= SM(0x2, AR_RTC_PLL_CLKSEL);
1068
1069                         if (chan && IS_CHAN_5GHZ(chan))
1070                                 pll |= SM(0xa, AR_RTC_PLL_DIV);
1071                         else
1072                                 pll |= SM(0xb, AR_RTC_PLL_DIV);
1073                 }
1074         }
1075         REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
1076
1077         udelay(RTC_PLL_SETTLE_DELAY);
1078
1079         REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
1080 }
1081
1082 static void ath9k_hw_init_chain_masks(struct ath_hw *ah)
1083 {
1084         int rx_chainmask, tx_chainmask;
1085
1086         rx_chainmask = ah->rxchainmask;
1087         tx_chainmask = ah->txchainmask;
1088
1089         switch (rx_chainmask) {
1090         case 0x5:
1091                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
1092                             AR_PHY_SWAP_ALT_CHAIN);
1093         case 0x3:
1094                 if (((ah)->hw_version.macVersion <= AR_SREV_VERSION_9160)) {
1095                         REG_WRITE(ah, AR_PHY_RX_CHAINMASK, 0x7);
1096                         REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, 0x7);
1097                         break;
1098                 }
1099         case 0x1:
1100         case 0x2:
1101         case 0x7:
1102                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
1103                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
1104                 break;
1105         default:
1106                 break;
1107         }
1108
1109         REG_WRITE(ah, AR_SELFGEN_MASK, tx_chainmask);
1110         if (tx_chainmask == 0x5) {
1111                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
1112                             AR_PHY_SWAP_ALT_CHAIN);
1113         }
1114         if (AR_SREV_9100(ah))
1115                 REG_WRITE(ah, AR_PHY_ANALOG_SWAP,
1116                           REG_READ(ah, AR_PHY_ANALOG_SWAP) | 0x00000001);
1117 }
1118
1119 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
1120                                           enum nl80211_iftype opmode)
1121 {
1122         ah->mask_reg = AR_IMR_TXERR |
1123                 AR_IMR_TXURN |
1124                 AR_IMR_RXERR |
1125                 AR_IMR_RXORN |
1126                 AR_IMR_BCNMISC;
1127
1128         if (ah->config.intr_mitigation)
1129                 ah->mask_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
1130         else
1131                 ah->mask_reg |= AR_IMR_RXOK;
1132
1133         ah->mask_reg |= AR_IMR_TXOK;
1134
1135         if (opmode == NL80211_IFTYPE_AP)
1136                 ah->mask_reg |= AR_IMR_MIB;
1137
1138         REG_WRITE(ah, AR_IMR, ah->mask_reg);
1139         REG_WRITE(ah, AR_IMR_S2, REG_READ(ah, AR_IMR_S2) | AR_IMR_S2_GTT);
1140
1141         if (!AR_SREV_9100(ah)) {
1142                 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
1143                 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
1144                 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
1145         }
1146 }
1147
1148 static bool ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
1149 {
1150         if (us > ath9k_hw_mac_to_usec(ah, MS(0xffffffff, AR_TIME_OUT_ACK))) {
1151                 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1152                           "bad ack timeout %u\n", us);
1153                 ah->acktimeout = (u32) -1;
1154                 return false;
1155         } else {
1156                 REG_RMW_FIELD(ah, AR_TIME_OUT,
1157                               AR_TIME_OUT_ACK, ath9k_hw_mac_to_clks(ah, us));
1158                 ah->acktimeout = us;
1159                 return true;
1160         }
1161 }
1162
1163 static bool ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
1164 {
1165         if (us > ath9k_hw_mac_to_usec(ah, MS(0xffffffff, AR_TIME_OUT_CTS))) {
1166                 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1167                           "bad cts timeout %u\n", us);
1168                 ah->ctstimeout = (u32) -1;
1169                 return false;
1170         } else {
1171                 REG_RMW_FIELD(ah, AR_TIME_OUT,
1172                               AR_TIME_OUT_CTS, ath9k_hw_mac_to_clks(ah, us));
1173                 ah->ctstimeout = us;
1174                 return true;
1175         }
1176 }
1177
1178 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
1179 {
1180         if (tu > 0xFFFF) {
1181                 ath_print(ath9k_hw_common(ah), ATH_DBG_XMIT,
1182                           "bad global tx timeout %u\n", tu);
1183                 ah->globaltxtimeout = (u32) -1;
1184                 return false;
1185         } else {
1186                 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
1187                 ah->globaltxtimeout = tu;
1188                 return true;
1189         }
1190 }
1191
1192 static void ath9k_hw_init_user_settings(struct ath_hw *ah)
1193 {
1194         ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
1195                   ah->misc_mode);
1196
1197         if (ah->misc_mode != 0)
1198                 REG_WRITE(ah, AR_PCU_MISC,
1199                           REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
1200         if (ah->slottime != (u32) -1)
1201                 ath9k_hw_setslottime(ah, ah->slottime);
1202         if (ah->acktimeout != (u32) -1)
1203                 ath9k_hw_set_ack_timeout(ah, ah->acktimeout);
1204         if (ah->ctstimeout != (u32) -1)
1205                 ath9k_hw_set_cts_timeout(ah, ah->ctstimeout);
1206         if (ah->globaltxtimeout != (u32) -1)
1207                 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
1208 }
1209
1210 const char *ath9k_hw_probe(u16 vendorid, u16 devid)
1211 {
1212         return vendorid == ATHEROS_VENDOR_ID ?
1213                 ath9k_hw_devname(devid) : NULL;
1214 }
1215
1216 void ath9k_hw_detach(struct ath_hw *ah)
1217 {
1218         if (!AR_SREV_9100(ah))
1219                 ath9k_hw_ani_disable(ah);
1220
1221         ath9k_hw_rf_free(ah);
1222         ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
1223         kfree(ah);
1224         ah = NULL;
1225 }
1226
1227 /*******/
1228 /* INI */
1229 /*******/
1230
1231 static void ath9k_hw_override_ini(struct ath_hw *ah,
1232                                   struct ath9k_channel *chan)
1233 {
1234         u32 val;
1235
1236         if (AR_SREV_9271(ah)) {
1237                 /*
1238                  * Enable spectral scan to solution for issues with stuck
1239                  * beacons on AR9271 1.0. The beacon stuck issue is not seeon on
1240                  * AR9271 1.1
1241                  */
1242                 if (AR_SREV_9271_10(ah)) {
1243                         val = REG_READ(ah, AR_PHY_SPECTRAL_SCAN) | AR_PHY_SPECTRAL_SCAN_ENABLE;
1244                         REG_WRITE(ah, AR_PHY_SPECTRAL_SCAN, val);
1245                 }
1246                 else if (AR_SREV_9271_11(ah))
1247                         /*
1248                          * change AR_PHY_RF_CTL3 setting to fix MAC issue
1249                          * present on AR9271 1.1
1250                          */
1251                         REG_WRITE(ah, AR_PHY_RF_CTL3, 0x3a020001);
1252                 return;
1253         }
1254
1255         /*
1256          * Set the RX_ABORT and RX_DIS and clear if off only after
1257          * RXE is set for MAC. This prevents frames with corrupted
1258          * descriptor status.
1259          */
1260         REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
1261
1262         if (AR_SREV_9280_10_OR_LATER(ah)) {
1263                 val = REG_READ(ah, AR_PCU_MISC_MODE2) &
1264                                (~AR_PCU_MISC_MODE2_HWWAR1);
1265
1266                 if (AR_SREV_9287_10_OR_LATER(ah))
1267                         val = val & (~AR_PCU_MISC_MODE2_HWWAR2);
1268
1269                 REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
1270         }
1271
1272         if (!AR_SREV_5416_20_OR_LATER(ah) ||
1273             AR_SREV_9280_10_OR_LATER(ah))
1274                 return;
1275         /*
1276          * Disable BB clock gating
1277          * Necessary to avoid issues on AR5416 2.0
1278          */
1279         REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
1280 }
1281
1282 static u32 ath9k_hw_def_ini_fixup(struct ath_hw *ah,
1283                               struct ar5416_eeprom_def *pEepData,
1284                               u32 reg, u32 value)
1285 {
1286         struct base_eep_header *pBase = &(pEepData->baseEepHeader);
1287         struct ath_common *common = ath9k_hw_common(ah);
1288
1289         switch (ah->hw_version.devid) {
1290         case AR9280_DEVID_PCI:
1291                 if (reg == 0x7894) {
1292                         ath_print(common, ATH_DBG_EEPROM,
1293                                 "ini VAL: %x  EEPROM: %x\n", value,
1294                                 (pBase->version & 0xff));
1295
1296                         if ((pBase->version & 0xff) > 0x0a) {
1297                                 ath_print(common, ATH_DBG_EEPROM,
1298                                           "PWDCLKIND: %d\n",
1299                                           pBase->pwdclkind);
1300                                 value &= ~AR_AN_TOP2_PWDCLKIND;
1301                                 value |= AR_AN_TOP2_PWDCLKIND &
1302                                         (pBase->pwdclkind << AR_AN_TOP2_PWDCLKIND_S);
1303                         } else {
1304                                 ath_print(common, ATH_DBG_EEPROM,
1305                                           "PWDCLKIND Earlier Rev\n");
1306                         }
1307
1308                         ath_print(common, ATH_DBG_EEPROM,
1309                                   "final ini VAL: %x\n", value);
1310                 }
1311                 break;
1312         }
1313
1314         return value;
1315 }
1316
1317 static u32 ath9k_hw_ini_fixup(struct ath_hw *ah,
1318                               struct ar5416_eeprom_def *pEepData,
1319                               u32 reg, u32 value)
1320 {
1321         if (ah->eep_map == EEP_MAP_4KBITS)
1322                 return value;
1323         else
1324                 return ath9k_hw_def_ini_fixup(ah, pEepData, reg, value);
1325 }
1326
1327 static void ath9k_olc_init(struct ath_hw *ah)
1328 {
1329         u32 i;
1330
1331         if (OLC_FOR_AR9287_10_LATER) {
1332                 REG_SET_BIT(ah, AR_PHY_TX_PWRCTRL9,
1333                                 AR_PHY_TX_PWRCTRL9_RES_DC_REMOVAL);
1334                 ath9k_hw_analog_shift_rmw(ah, AR9287_AN_TXPC0,
1335                                 AR9287_AN_TXPC0_TXPCMODE,
1336                                 AR9287_AN_TXPC0_TXPCMODE_S,
1337                                 AR9287_AN_TXPC0_TXPCMODE_TEMPSENSE);
1338                 udelay(100);
1339         } else {
1340                 for (i = 0; i < AR9280_TX_GAIN_TABLE_SIZE; i++)
1341                         ah->originalGain[i] =
1342                                 MS(REG_READ(ah, AR_PHY_TX_GAIN_TBL1 + i * 4),
1343                                                 AR_PHY_TX_GAIN);
1344                 ah->PDADCdelta = 0;
1345         }
1346 }
1347
1348 static u32 ath9k_regd_get_ctl(struct ath_regulatory *reg,
1349                               struct ath9k_channel *chan)
1350 {
1351         u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
1352
1353         if (IS_CHAN_B(chan))
1354                 ctl |= CTL_11B;
1355         else if (IS_CHAN_G(chan))
1356                 ctl |= CTL_11G;
1357         else
1358                 ctl |= CTL_11A;
1359
1360         return ctl;
1361 }
1362
1363 static int ath9k_hw_process_ini(struct ath_hw *ah,
1364                                 struct ath9k_channel *chan)
1365 {
1366         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1367         int i, regWrites = 0;
1368         struct ieee80211_channel *channel = chan->chan;
1369         u32 modesIndex, freqIndex;
1370
1371         switch (chan->chanmode) {
1372         case CHANNEL_A:
1373         case CHANNEL_A_HT20:
1374                 modesIndex = 1;
1375                 freqIndex = 1;
1376                 break;
1377         case CHANNEL_A_HT40PLUS:
1378         case CHANNEL_A_HT40MINUS:
1379                 modesIndex = 2;
1380                 freqIndex = 1;
1381                 break;
1382         case CHANNEL_G:
1383         case CHANNEL_G_HT20:
1384         case CHANNEL_B:
1385                 modesIndex = 4;
1386                 freqIndex = 2;
1387                 break;
1388         case CHANNEL_G_HT40PLUS:
1389         case CHANNEL_G_HT40MINUS:
1390                 modesIndex = 3;
1391                 freqIndex = 2;
1392                 break;
1393
1394         default:
1395                 return -EINVAL;
1396         }
1397
1398         REG_WRITE(ah, AR_PHY(0), 0x00000007);
1399         REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_EXTERNAL_RADIO);
1400         ah->eep_ops->set_addac(ah, chan);
1401
1402         if (AR_SREV_5416_22_OR_LATER(ah)) {
1403                 REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
1404         } else {
1405                 struct ar5416IniArray temp;
1406                 u32 addacSize =
1407                         sizeof(u32) * ah->iniAddac.ia_rows *
1408                         ah->iniAddac.ia_columns;
1409
1410                 memcpy(ah->addac5416_21,
1411                        ah->iniAddac.ia_array, addacSize);
1412
1413                 (ah->addac5416_21)[31 * ah->iniAddac.ia_columns + 1] = 0;
1414
1415                 temp.ia_array = ah->addac5416_21;
1416                 temp.ia_columns = ah->iniAddac.ia_columns;
1417                 temp.ia_rows = ah->iniAddac.ia_rows;
1418                 REG_WRITE_ARRAY(&temp, 1, regWrites);
1419         }
1420
1421         REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC);
1422
1423         for (i = 0; i < ah->iniModes.ia_rows; i++) {
1424                 u32 reg = INI_RA(&ah->iniModes, i, 0);
1425                 u32 val = INI_RA(&ah->iniModes, i, modesIndex);
1426
1427                 REG_WRITE(ah, reg, val);
1428
1429                 if (reg >= 0x7800 && reg < 0x78a0
1430                     && ah->config.analog_shiftreg) {
1431                         udelay(100);
1432                 }
1433
1434                 DO_DELAY(regWrites);
1435         }
1436
1437         if (AR_SREV_9280(ah) || AR_SREV_9287_10_OR_LATER(ah))
1438                 REG_WRITE_ARRAY(&ah->iniModesRxGain, modesIndex, regWrites);
1439
1440         if (AR_SREV_9280(ah) || AR_SREV_9285_12_OR_LATER(ah) ||
1441             AR_SREV_9287_10_OR_LATER(ah))
1442                 REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
1443
1444         for (i = 0; i < ah->iniCommon.ia_rows; i++) {
1445                 u32 reg = INI_RA(&ah->iniCommon, i, 0);
1446                 u32 val = INI_RA(&ah->iniCommon, i, 1);
1447
1448                 REG_WRITE(ah, reg, val);
1449
1450                 if (reg >= 0x7800 && reg < 0x78a0
1451                     && ah->config.analog_shiftreg) {
1452                         udelay(100);
1453                 }
1454
1455                 DO_DELAY(regWrites);
1456         }
1457
1458         ath9k_hw_write_regs(ah, modesIndex, freqIndex, regWrites);
1459
1460         if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan)) {
1461                 REG_WRITE_ARRAY(&ah->iniModesAdditional, modesIndex,
1462                                 regWrites);
1463         }
1464
1465         ath9k_hw_override_ini(ah, chan);
1466         ath9k_hw_set_regs(ah, chan);
1467         ath9k_hw_init_chain_masks(ah);
1468
1469         if (OLC_FOR_AR9280_20_LATER)
1470                 ath9k_olc_init(ah);
1471
1472         ah->eep_ops->set_txpower(ah, chan,
1473                                  ath9k_regd_get_ctl(regulatory, chan),
1474                                  channel->max_antenna_gain * 2,
1475                                  channel->max_power * 2,
1476                                  min((u32) MAX_RATE_POWER,
1477                                  (u32) regulatory->power_limit));
1478
1479         if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
1480                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1481                           "ar5416SetRfRegs failed\n");
1482                 return -EIO;
1483         }
1484
1485         return 0;
1486 }
1487
1488 /****************************************/
1489 /* Reset and Channel Switching Routines */
1490 /****************************************/
1491
1492 static void ath9k_hw_set_rfmode(struct ath_hw *ah, struct ath9k_channel *chan)
1493 {
1494         u32 rfMode = 0;
1495
1496         if (chan == NULL)
1497                 return;
1498
1499         rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
1500                 ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
1501
1502         if (!AR_SREV_9280_10_OR_LATER(ah))
1503                 rfMode |= (IS_CHAN_5GHZ(chan)) ?
1504                         AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ;
1505
1506         if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan))
1507                 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
1508
1509         REG_WRITE(ah, AR_PHY_MODE, rfMode);
1510 }
1511
1512 static void ath9k_hw_mark_phy_inactive(struct ath_hw *ah)
1513 {
1514         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
1515 }
1516
1517 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
1518 {
1519         u32 regval;
1520
1521         /*
1522          * set AHB_MODE not to do cacheline prefetches
1523         */
1524         regval = REG_READ(ah, AR_AHB_MODE);
1525         REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
1526
1527         /*
1528          * let mac dma reads be in 128 byte chunks
1529          */
1530         regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
1531         REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
1532
1533         /*
1534          * Restore TX Trigger Level to its pre-reset value.
1535          * The initial value depends on whether aggregation is enabled, and is
1536          * adjusted whenever underruns are detected.
1537          */
1538         REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
1539
1540         /*
1541          * let mac dma writes be in 128 byte chunks
1542          */
1543         regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
1544         REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
1545
1546         /*
1547          * Setup receive FIFO threshold to hold off TX activities
1548          */
1549         REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
1550
1551         /*
1552          * reduce the number of usable entries in PCU TXBUF to avoid
1553          * wrap around issues.
1554          */
1555         if (AR_SREV_9285(ah)) {
1556                 /* For AR9285 the number of Fifos are reduced to half.
1557                  * So set the usable tx buf size also to half to
1558                  * avoid data/delimiter underruns
1559                  */
1560                 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1561                           AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
1562         } else if (!AR_SREV_9271(ah)) {
1563                 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1564                           AR_PCU_TXBUF_CTRL_USABLE_SIZE);
1565         }
1566 }
1567
1568 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
1569 {
1570         u32 val;
1571
1572         val = REG_READ(ah, AR_STA_ID1);
1573         val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
1574         switch (opmode) {
1575         case NL80211_IFTYPE_AP:
1576                 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
1577                           | AR_STA_ID1_KSRCH_MODE);
1578                 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1579                 break;
1580         case NL80211_IFTYPE_ADHOC:
1581         case NL80211_IFTYPE_MESH_POINT:
1582                 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
1583                           | AR_STA_ID1_KSRCH_MODE);
1584                 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1585                 break;
1586         case NL80211_IFTYPE_STATION:
1587         case NL80211_IFTYPE_MONITOR:
1588                 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
1589                 break;
1590         }
1591 }
1592
1593 static inline void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah,
1594                                                  u32 coef_scaled,
1595                                                  u32 *coef_mantissa,
1596                                                  u32 *coef_exponent)
1597 {
1598         u32 coef_exp, coef_man;
1599
1600         for (coef_exp = 31; coef_exp > 0; coef_exp--)
1601                 if ((coef_scaled >> coef_exp) & 0x1)
1602                         break;
1603
1604         coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1605
1606         coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1607
1608         *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1609         *coef_exponent = coef_exp - 16;
1610 }
1611
1612 static void ath9k_hw_set_delta_slope(struct ath_hw *ah,
1613                                      struct ath9k_channel *chan)
1614 {
1615         u32 coef_scaled, ds_coef_exp, ds_coef_man;
1616         u32 clockMhzScaled = 0x64000000;
1617         struct chan_centers centers;
1618
1619         if (IS_CHAN_HALF_RATE(chan))
1620                 clockMhzScaled = clockMhzScaled >> 1;
1621         else if (IS_CHAN_QUARTER_RATE(chan))
1622                 clockMhzScaled = clockMhzScaled >> 2;
1623
1624         ath9k_hw_get_channel_centers(ah, chan, &centers);
1625         coef_scaled = clockMhzScaled / centers.synth_center;
1626
1627         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
1628                                       &ds_coef_exp);
1629
1630         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
1631                       AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
1632         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
1633                       AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
1634
1635         coef_scaled = (9 * coef_scaled) / 10;
1636
1637         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
1638                                       &ds_coef_exp);
1639
1640         REG_RMW_FIELD(ah, AR_PHY_HALFGI,
1641                       AR_PHY_HALFGI_DSC_MAN, ds_coef_man);
1642         REG_RMW_FIELD(ah, AR_PHY_HALFGI,
1643                       AR_PHY_HALFGI_DSC_EXP, ds_coef_exp);
1644 }
1645
1646 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1647 {
1648         u32 rst_flags;
1649         u32 tmpReg;
1650
1651         if (AR_SREV_9100(ah)) {
1652                 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
1653                 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
1654                 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
1655                 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
1656                 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1657         }
1658
1659         REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1660                   AR_RTC_FORCE_WAKE_ON_INT);
1661
1662         if (AR_SREV_9100(ah)) {
1663                 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1664                         AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1665         } else {
1666                 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1667                 if (tmpReg &
1668                     (AR_INTR_SYNC_LOCAL_TIMEOUT |
1669                      AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1670                         REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1671                         REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1672                 } else {
1673                         REG_WRITE(ah, AR_RC, AR_RC_AHB);
1674                 }
1675
1676                 rst_flags = AR_RTC_RC_MAC_WARM;
1677                 if (type == ATH9K_RESET_COLD)
1678                         rst_flags |= AR_RTC_RC_MAC_COLD;
1679         }
1680
1681         REG_WRITE(ah, AR_RTC_RC, rst_flags);
1682         udelay(50);
1683
1684         REG_WRITE(ah, AR_RTC_RC, 0);
1685         if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1686                 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1687                           "RTC stuck in MAC reset\n");
1688                 return false;
1689         }
1690
1691         if (!AR_SREV_9100(ah))
1692                 REG_WRITE(ah, AR_RC, 0);
1693
1694         if (AR_SREV_9100(ah))
1695                 udelay(50);
1696
1697         return true;
1698 }
1699
1700 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1701 {
1702         REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1703                   AR_RTC_FORCE_WAKE_ON_INT);
1704
1705         if (!AR_SREV_9100(ah))
1706                 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1707
1708         REG_WRITE(ah, AR_RTC_RESET, 0);
1709         udelay(2);
1710
1711         if (!AR_SREV_9100(ah))
1712                 REG_WRITE(ah, AR_RC, 0);
1713
1714         REG_WRITE(ah, AR_RTC_RESET, 1);
1715
1716         if (!ath9k_hw_wait(ah,
1717                            AR_RTC_STATUS,
1718                            AR_RTC_STATUS_M,
1719                            AR_RTC_STATUS_ON,
1720                            AH_WAIT_TIMEOUT)) {
1721                 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1722                           "RTC not waking up\n");
1723                 return false;
1724         }
1725
1726         ath9k_hw_read_revisions(ah);
1727
1728         return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1729 }
1730
1731 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1732 {
1733         REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1734                   AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1735
1736         switch (type) {
1737         case ATH9K_RESET_POWER_ON:
1738                 return ath9k_hw_set_reset_power_on(ah);
1739         case ATH9K_RESET_WARM:
1740         case ATH9K_RESET_COLD:
1741                 return ath9k_hw_set_reset(ah, type);
1742         default:
1743                 return false;
1744         }
1745 }
1746
1747 static void ath9k_hw_set_regs(struct ath_hw *ah, struct ath9k_channel *chan)
1748 {
1749         u32 phymode;
1750         u32 enableDacFifo = 0;
1751
1752         if (AR_SREV_9285_10_OR_LATER(ah))
1753                 enableDacFifo = (REG_READ(ah, AR_PHY_TURBO) &
1754                                          AR_PHY_FC_ENABLE_DAC_FIFO);
1755
1756         phymode = AR_PHY_FC_HT_EN | AR_PHY_FC_SHORT_GI_40
1757                 | AR_PHY_FC_SINGLE_HT_LTF1 | AR_PHY_FC_WALSH | enableDacFifo;
1758
1759         if (IS_CHAN_HT40(chan)) {
1760                 phymode |= AR_PHY_FC_DYN2040_EN;
1761
1762                 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
1763                     (chan->chanmode == CHANNEL_G_HT40PLUS))
1764                         phymode |= AR_PHY_FC_DYN2040_PRI_CH;
1765
1766         }
1767         REG_WRITE(ah, AR_PHY_TURBO, phymode);
1768
1769         ath9k_hw_set11nmac2040(ah);
1770
1771         REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
1772         REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
1773 }
1774
1775 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1776                                 struct ath9k_channel *chan)
1777 {
1778         if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1779                 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1780                         return false;
1781         } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1782                 return false;
1783
1784         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1785                 return false;
1786
1787         ah->chip_fullsleep = false;
1788         ath9k_hw_init_pll(ah, chan);
1789         ath9k_hw_set_rfmode(ah, chan);
1790
1791         return true;
1792 }
1793
1794 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1795                                     struct ath9k_channel *chan)
1796 {
1797         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1798         struct ath_common *common = ath9k_hw_common(ah);
1799         struct ieee80211_channel *channel = chan->chan;
1800         u32 synthDelay, qnum;
1801
1802         for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1803                 if (ath9k_hw_numtxpending(ah, qnum)) {
1804                         ath_print(common, ATH_DBG_QUEUE,
1805                                   "Transmit frames pending on "
1806                                   "queue %d\n", qnum);
1807                         return false;
1808                 }
1809         }
1810
1811         REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
1812         if (!ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
1813                            AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT)) {
1814                 ath_print(common, ATH_DBG_FATAL,
1815                           "Could not kill baseband RX\n");
1816                 return false;
1817         }
1818
1819         ath9k_hw_set_regs(ah, chan);
1820
1821         if (AR_SREV_9280_10_OR_LATER(ah)) {
1822                 ath9k_hw_ar9280_set_channel(ah, chan);
1823         } else {
1824                 if (!(ath9k_hw_set_channel(ah, chan))) {
1825                         ath_print(common, ATH_DBG_FATAL,
1826                                   "Failed to set channel\n");
1827                         return false;
1828                 }
1829         }
1830
1831         ah->eep_ops->set_txpower(ah, chan,
1832                              ath9k_regd_get_ctl(regulatory, chan),
1833                              channel->max_antenna_gain * 2,
1834                              channel->max_power * 2,
1835                              min((u32) MAX_RATE_POWER,
1836                              (u32) regulatory->power_limit));
1837
1838         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
1839         if (IS_CHAN_B(chan))
1840                 synthDelay = (4 * synthDelay) / 22;
1841         else
1842                 synthDelay /= 10;
1843
1844         udelay(synthDelay + BASE_ACTIVATE_DELAY);
1845
1846         REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
1847
1848         if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1849                 ath9k_hw_set_delta_slope(ah, chan);
1850
1851         if (AR_SREV_9280_10_OR_LATER(ah))
1852                 ath9k_hw_9280_spur_mitigate(ah, chan);
1853         else
1854                 ath9k_hw_spur_mitigate(ah, chan);
1855
1856         if (!chan->oneTimeCalsDone)
1857                 chan->oneTimeCalsDone = true;
1858
1859         return true;
1860 }
1861
1862 static void ath9k_hw_9280_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan)
1863 {
1864         int bb_spur = AR_NO_SPUR;
1865         int freq;
1866         int bin, cur_bin;
1867         int bb_spur_off, spur_subchannel_sd;
1868         int spur_freq_sd;
1869         int spur_delta_phase;
1870         int denominator;
1871         int upper, lower, cur_vit_mask;
1872         int tmp, newVal;
1873         int i;
1874         int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
1875                           AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
1876         };
1877         int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
1878                          AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
1879         };
1880         int inc[4] = { 0, 100, 0, 0 };
1881         struct chan_centers centers;
1882
1883         int8_t mask_m[123];
1884         int8_t mask_p[123];
1885         int8_t mask_amt;
1886         int tmp_mask;
1887         int cur_bb_spur;
1888         bool is2GHz = IS_CHAN_2GHZ(chan);
1889
1890         memset(&mask_m, 0, sizeof(int8_t) * 123);
1891         memset(&mask_p, 0, sizeof(int8_t) * 123);
1892
1893         ath9k_hw_get_channel_centers(ah, chan, &centers);
1894         freq = centers.synth_center;
1895
1896         ah->config.spurmode = SPUR_ENABLE_EEPROM;
1897         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
1898                 cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
1899
1900                 if (is2GHz)
1901                         cur_bb_spur = (cur_bb_spur / 10) + AR_BASE_FREQ_2GHZ;
1902                 else
1903                         cur_bb_spur = (cur_bb_spur / 10) + AR_BASE_FREQ_5GHZ;
1904
1905                 if (AR_NO_SPUR == cur_bb_spur)
1906                         break;
1907                 cur_bb_spur = cur_bb_spur - freq;
1908
1909                 if (IS_CHAN_HT40(chan)) {
1910                         if ((cur_bb_spur > -AR_SPUR_FEEQ_BOUND_HT40) &&
1911                             (cur_bb_spur < AR_SPUR_FEEQ_BOUND_HT40)) {
1912                                 bb_spur = cur_bb_spur;
1913                                 break;
1914                         }
1915                 } else if ((cur_bb_spur > -AR_SPUR_FEEQ_BOUND_HT20) &&
1916                            (cur_bb_spur < AR_SPUR_FEEQ_BOUND_HT20)) {
1917                         bb_spur = cur_bb_spur;
1918                         break;
1919                 }
1920         }
1921
1922         if (AR_NO_SPUR == bb_spur) {
1923                 REG_CLR_BIT(ah, AR_PHY_FORCE_CLKEN_CCK,
1924                             AR_PHY_FORCE_CLKEN_CCK_MRC_MUX);
1925                 return;
1926         } else {
1927                 REG_CLR_BIT(ah, AR_PHY_FORCE_CLKEN_CCK,
1928                             AR_PHY_FORCE_CLKEN_CCK_MRC_MUX);
1929         }
1930
1931         bin = bb_spur * 320;
1932
1933         tmp = REG_READ(ah, AR_PHY_TIMING_CTRL4(0));
1934
1935         newVal = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
1936                         AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
1937                         AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
1938                         AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
1939         REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), newVal);
1940
1941         newVal = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
1942                   AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
1943                   AR_PHY_SPUR_REG_MASK_RATE_SELECT |
1944                   AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
1945                   SM(SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
1946         REG_WRITE(ah, AR_PHY_SPUR_REG, newVal);
1947
1948         if (IS_CHAN_HT40(chan)) {
1949                 if (bb_spur < 0) {
1950                         spur_subchannel_sd = 1;
1951                         bb_spur_off = bb_spur + 10;
1952                 } else {
1953                         spur_subchannel_sd = 0;
1954                         bb_spur_off = bb_spur - 10;
1955                 }
1956         } else {
1957                 spur_subchannel_sd = 0;
1958                 bb_spur_off = bb_spur;
1959         }
1960
1961         if (IS_CHAN_HT40(chan))
1962                 spur_delta_phase =
1963                         ((bb_spur * 262144) /
1964                          10) & AR_PHY_TIMING11_SPUR_DELTA_PHASE;
1965         else
1966                 spur_delta_phase =
1967                         ((bb_spur * 524288) /
1968                          10) & AR_PHY_TIMING11_SPUR_DELTA_PHASE;
1969
1970         denominator = IS_CHAN_2GHZ(chan) ? 44 : 40;
1971         spur_freq_sd = ((bb_spur_off * 2048) / denominator) & 0x3ff;
1972
1973         newVal = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
1974                   SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
1975                   SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
1976         REG_WRITE(ah, AR_PHY_TIMING11, newVal);
1977
1978         newVal = spur_subchannel_sd << AR_PHY_SFCORR_SPUR_SUBCHNL_SD_S;
1979         REG_WRITE(ah, AR_PHY_SFCORR_EXT, newVal);
1980
1981         cur_bin = -6000;
1982         upper = bin + 100;
1983         lower = bin - 100;
1984
1985         for (i = 0; i < 4; i++) {
1986                 int pilot_mask = 0;
1987                 int chan_mask = 0;
1988                 int bp = 0;
1989                 for (bp = 0; bp < 30; bp++) {
1990                         if ((cur_bin > lower) && (cur_bin < upper)) {
1991                                 pilot_mask = pilot_mask | 0x1 << bp;
1992                                 chan_mask = chan_mask | 0x1 << bp;
1993                         }
1994                         cur_bin += 100;
1995                 }
1996                 cur_bin += inc[i];
1997                 REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
1998                 REG_WRITE(ah, chan_mask_reg[i], chan_mask);
1999         }
2000
2001         cur_vit_mask = 6100;
2002         upper = bin + 120;
2003         lower = bin - 120;
2004
2005         for (i = 0; i < 123; i++) {
2006                 if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
2007
2008                         /* workaround for gcc bug #37014 */
2009                         volatile int tmp_v = abs(cur_vit_mask - bin);
2010
2011                         if (tmp_v < 75)
2012                                 mask_amt = 1;
2013                         else
2014                                 mask_amt = 0;
2015                         if (cur_vit_mask < 0)
2016                                 mask_m[abs(cur_vit_mask / 100)] = mask_amt;
2017                         else
2018                                 mask_p[cur_vit_mask / 100] = mask_amt;
2019                 }
2020                 cur_vit_mask -= 100;
2021         }
2022
2023         tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
2024                 | (mask_m[48] << 26) | (mask_m[49] << 24)
2025                 | (mask_m[50] << 22) | (mask_m[51] << 20)
2026                 | (mask_m[52] << 18) | (mask_m[53] << 16)
2027                 | (mask_m[54] << 14) | (mask_m[55] << 12)
2028                 | (mask_m[56] << 10) | (mask_m[57] << 8)
2029                 | (mask_m[58] << 6) | (mask_m[59] << 4)
2030                 | (mask_m[60] << 2) | (mask_m[61] << 0);
2031         REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
2032         REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
2033
2034         tmp_mask = (mask_m[31] << 28)
2035                 | (mask_m[32] << 26) | (mask_m[33] << 24)
2036                 | (mask_m[34] << 22) | (mask_m[35] << 20)
2037                 | (mask_m[36] << 18) | (mask_m[37] << 16)
2038                 | (mask_m[48] << 14) | (mask_m[39] << 12)
2039                 | (mask_m[40] << 10) | (mask_m[41] << 8)
2040                 | (mask_m[42] << 6) | (mask_m[43] << 4)
2041                 | (mask_m[44] << 2) | (mask_m[45] << 0);
2042         REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
2043         REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
2044
2045         tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
2046                 | (mask_m[18] << 26) | (mask_m[18] << 24)
2047                 | (mask_m[20] << 22) | (mask_m[20] << 20)
2048                 | (mask_m[22] << 18) | (mask_m[22] << 16)
2049                 | (mask_m[24] << 14) | (mask_m[24] << 12)
2050                 | (mask_m[25] << 10) | (mask_m[26] << 8)
2051                 | (mask_m[27] << 6) | (mask_m[28] << 4)
2052                 | (mask_m[29] << 2) | (mask_m[30] << 0);
2053         REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
2054         REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
2055
2056         tmp_mask = (mask_m[0] << 30) | (mask_m[1] << 28)
2057                 | (mask_m[2] << 26) | (mask_m[3] << 24)
2058                 | (mask_m[4] << 22) | (mask_m[5] << 20)
2059                 | (mask_m[6] << 18) | (mask_m[7] << 16)
2060                 | (mask_m[8] << 14) | (mask_m[9] << 12)
2061                 | (mask_m[10] << 10) | (mask_m[11] << 8)
2062                 | (mask_m[12] << 6) | (mask_m[13] << 4)
2063                 | (mask_m[14] << 2) | (mask_m[15] << 0);
2064         REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
2065         REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
2066
2067         tmp_mask = (mask_p[15] << 28)
2068                 | (mask_p[14] << 26) | (mask_p[13] << 24)
2069                 | (mask_p[12] << 22) | (mask_p[11] << 20)
2070                 | (mask_p[10] << 18) | (mask_p[9] << 16)
2071                 | (mask_p[8] << 14) | (mask_p[7] << 12)
2072                 | (mask_p[6] << 10) | (mask_p[5] << 8)
2073                 | (mask_p[4] << 6) | (mask_p[3] << 4)
2074                 | (mask_p[2] << 2) | (mask_p[1] << 0);
2075         REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
2076         REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
2077
2078         tmp_mask = (mask_p[30] << 28)
2079                 | (mask_p[29] << 26) | (mask_p[28] << 24)
2080                 | (mask_p[27] << 22) | (mask_p[26] << 20)
2081                 | (mask_p[25] << 18) | (mask_p[24] << 16)
2082                 | (mask_p[23] << 14) | (mask_p[22] << 12)
2083                 | (mask_p[21] << 10) | (mask_p[20] << 8)
2084                 | (mask_p[19] << 6) | (mask_p[18] << 4)
2085                 | (mask_p[17] << 2) | (mask_p[16] << 0);
2086         REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
2087         REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
2088
2089         tmp_mask = (mask_p[45] << 28)
2090                 | (mask_p[44] << 26) | (mask_p[43] << 24)
2091                 | (mask_p[42] << 22) | (mask_p[41] << 20)
2092                 | (mask_p[40] << 18) | (mask_p[39] << 16)
2093                 | (mask_p[38] << 14) | (mask_p[37] << 12)
2094                 | (mask_p[36] << 10) | (mask_p[35] << 8)
2095                 | (mask_p[34] << 6) | (mask_p[33] << 4)
2096                 | (mask_p[32] << 2) | (mask_p[31] << 0);
2097         REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
2098         REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
2099
2100         tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
2101                 | (mask_p[59] << 26) | (mask_p[58] << 24)
2102                 | (mask_p[57] << 22) | (mask_p[56] << 20)
2103                 | (mask_p[55] << 18) | (mask_p[54] << 16)
2104                 | (mask_p[53] << 14) | (mask_p[52] << 12)
2105                 | (mask_p[51] << 10) | (mask_p[50] << 8)
2106                 | (mask_p[49] << 6) | (mask_p[48] << 4)
2107                 | (mask_p[47] << 2) | (mask_p[46] << 0);
2108         REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
2109         REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
2110 }
2111
2112 static void ath9k_hw_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan)
2113 {
2114         int bb_spur = AR_NO_SPUR;
2115         int bin, cur_bin;
2116         int spur_freq_sd;
2117         int spur_delta_phase;
2118         int denominator;
2119         int upper, lower, cur_vit_mask;
2120         int tmp, new;
2121         int i;
2122         int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
2123                           AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
2124         };
2125         int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
2126                          AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
2127         };
2128         int inc[4] = { 0, 100, 0, 0 };
2129
2130         int8_t mask_m[123];
2131         int8_t mask_p[123];
2132         int8_t mask_amt;
2133         int tmp_mask;
2134         int cur_bb_spur;
2135         bool is2GHz = IS_CHAN_2GHZ(chan);
2136
2137         memset(&mask_m, 0, sizeof(int8_t) * 123);
2138         memset(&mask_p, 0, sizeof(int8_t) * 123);
2139
2140         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
2141                 cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
2142                 if (AR_NO_SPUR == cur_bb_spur)
2143                         break;
2144                 cur_bb_spur = cur_bb_spur - (chan->channel * 10);
2145                 if ((cur_bb_spur > -95) && (cur_bb_spur < 95)) {
2146                         bb_spur = cur_bb_spur;
2147                         break;
2148                 }
2149         }
2150
2151         if (AR_NO_SPUR == bb_spur)
2152                 return;
2153
2154         bin = bb_spur * 32;
2155
2156         tmp = REG_READ(ah, AR_PHY_TIMING_CTRL4(0));
2157         new = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
2158                      AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
2159                      AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
2160                      AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
2161
2162         REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), new);
2163
2164         new = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
2165                AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
2166                AR_PHY_SPUR_REG_MASK_RATE_SELECT |
2167                AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
2168                SM(SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
2169         REG_WRITE(ah, AR_PHY_SPUR_REG, new);
2170
2171         spur_delta_phase = ((bb_spur * 524288) / 100) &
2172                 AR_PHY_TIMING11_SPUR_DELTA_PHASE;
2173
2174         denominator = IS_CHAN_2GHZ(chan) ? 440 : 400;
2175         spur_freq_sd = ((bb_spur * 2048) / denominator) & 0x3ff;
2176
2177         new = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
2178                SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
2179                SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
2180         REG_WRITE(ah, AR_PHY_TIMING11, new);
2181
2182         cur_bin = -6000;
2183         upper = bin + 100;
2184         lower = bin - 100;
2185
2186         for (i = 0; i < 4; i++) {
2187                 int pilot_mask = 0;
2188                 int chan_mask = 0;
2189                 int bp = 0;
2190                 for (bp = 0; bp < 30; bp++) {
2191                         if ((cur_bin > lower) && (cur_bin < upper)) {
2192                                 pilot_mask = pilot_mask | 0x1 << bp;
2193                                 chan_mask = chan_mask | 0x1 << bp;
2194                         }
2195                         cur_bin += 100;
2196                 }
2197                 cur_bin += inc[i];
2198                 REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
2199                 REG_WRITE(ah, chan_mask_reg[i], chan_mask);
2200         }
2201
2202         cur_vit_mask = 6100;
2203         upper = bin + 120;
2204         lower = bin - 120;
2205
2206         for (i = 0; i < 123; i++) {
2207                 if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
2208
2209                         /* workaround for gcc bug #37014 */
2210                         volatile int tmp_v = abs(cur_vit_mask - bin);
2211
2212                         if (tmp_v < 75)
2213                                 mask_amt = 1;
2214                         else
2215                                 mask_amt = 0;
2216                         if (cur_vit_mask < 0)
2217                                 mask_m[abs(cur_vit_mask / 100)] = mask_amt;
2218                         else
2219                                 mask_p[cur_vit_mask / 100] = mask_amt;
2220                 }
2221                 cur_vit_mask -= 100;
2222         }
2223
2224         tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
2225                 | (mask_m[48] << 26) | (mask_m[49] << 24)
2226                 | (mask_m[50] << 22) | (mask_m[51] << 20)
2227                 | (mask_m[52] << 18) | (mask_m[53] << 16)
2228                 | (mask_m[54] << 14) | (mask_m[55] << 12)
2229                 | (mask_m[56] << 10) | (mask_m[57] << 8)
2230                 | (mask_m[58] << 6) | (mask_m[59] << 4)
2231                 | (mask_m[60] << 2) | (mask_m[61] << 0);
2232         REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
2233         REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
2234
2235         tmp_mask = (mask_m[31] << 28)
2236                 | (mask_m[32] << 26) | (mask_m[33] << 24)
2237                 | (mask_m[34] << 22) | (mask_m[35] << 20)
2238                 | (mask_m[36] << 18) | (mask_m[37] << 16)
2239                 | (mask_m[48] << 14) | (mask_m[39] << 12)
2240                 | (mask_m[40] << 10) | (mask_m[41] << 8)
2241                 | (mask_m[42] << 6) | (mask_m[43] << 4)
2242                 | (mask_m[44] << 2) | (mask_m[45] << 0);
2243         REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
2244         REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
2245
2246         tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
2247                 | (mask_m[18] << 26) | (mask_m[18] << 24)
2248                 | (mask_m[20] << 22) | (mask_m[20] << 20)
2249                 | (mask_m[22] << 18) | (mask_m[22] << 16)
2250                 | (mask_m[24] << 14) | (mask_m[24] << 12)
2251                 | (mask_m[25] << 10) | (mask_m[26] << 8)
2252                 | (mask_m[27] << 6) | (mask_m[28] << 4)
2253                 | (mask_m[29] << 2) | (mask_m[30] << 0);
2254         REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
2255         REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
2256
2257         tmp_mask = (mask_m[0] << 30) | (mask_m[1] << 28)
2258                 | (mask_m[2] << 26) | (mask_m[3] << 24)
2259                 | (mask_m[4] << 22) | (mask_m[5] << 20)
2260                 | (mask_m[6] << 18) | (mask_m[7] << 16)
2261                 | (mask_m[8] << 14) | (mask_m[9] << 12)
2262                 | (mask_m[10] << 10) | (mask_m[11] << 8)
2263                 | (mask_m[12] << 6) | (mask_m[13] << 4)
2264                 | (mask_m[14] << 2) | (mask_m[15] << 0);
2265         REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
2266         REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
2267
2268         tmp_mask = (mask_p[15] << 28)
2269                 | (mask_p[14] << 26) | (mask_p[13] << 24)
2270                 | (mask_p[12] << 22) | (mask_p[11] << 20)
2271                 | (mask_p[10] << 18) | (mask_p[9] << 16)
2272                 | (mask_p[8] << 14) | (mask_p[7] << 12)
2273                 | (mask_p[6] << 10) | (mask_p[5] << 8)
2274                 | (mask_p[4] << 6) | (mask_p[3] << 4)
2275                 | (mask_p[2] << 2) | (mask_p[1] << 0);
2276         REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
2277         REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
2278
2279         tmp_mask = (mask_p[30] << 28)
2280                 | (mask_p[29] << 26) | (mask_p[28] << 24)
2281                 | (mask_p[27] << 22) | (mask_p[26] << 20)
2282                 | (mask_p[25] << 18) | (mask_p[24] << 16)
2283                 | (mask_p[23] << 14) | (mask_p[22] << 12)
2284                 | (mask_p[21] << 10) | (mask_p[20] << 8)
2285                 | (mask_p[19] << 6) | (mask_p[18] << 4)
2286                 | (mask_p[17] << 2) | (mask_p[16] << 0);
2287         REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
2288         REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
2289
2290         tmp_mask = (mask_p[45] << 28)
2291                 | (mask_p[44] << 26) | (mask_p[43] << 24)
2292                 | (mask_p[42] << 22) | (mask_p[41] << 20)
2293                 | (mask_p[40] << 18) | (mask_p[39] << 16)
2294                 | (mask_p[38] << 14) | (mask_p[37] << 12)
2295                 | (mask_p[36] << 10) | (mask_p[35] << 8)
2296                 | (mask_p[34] << 6) | (mask_p[33] << 4)
2297                 | (mask_p[32] << 2) | (mask_p[31] << 0);
2298         REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
2299         REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
2300
2301         tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
2302                 | (mask_p[59] << 26) | (mask_p[58] << 24)
2303                 | (mask_p[57] << 22) | (mask_p[56] << 20)
2304                 | (mask_p[55] << 18) | (mask_p[54] << 16)
2305                 | (mask_p[53] << 14) | (mask_p[52] << 12)
2306                 | (mask_p[51] << 10) | (mask_p[50] << 8)
2307                 | (mask_p[49] << 6) | (mask_p[48] << 4)
2308                 | (mask_p[47] << 2) | (mask_p[46] << 0);
2309         REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
2310         REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
2311 }
2312
2313 static void ath9k_enable_rfkill(struct ath_hw *ah)
2314 {
2315         REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
2316                     AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
2317
2318         REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
2319                     AR_GPIO_INPUT_MUX2_RFSILENT);
2320
2321         ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
2322         REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
2323 }
2324
2325 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
2326                     bool bChannelChange)
2327 {
2328         struct ath_common *common = ath9k_hw_common(ah);
2329         u32 saveLedState;
2330         struct ath9k_channel *curchan = ah->curchan;
2331         u32 saveDefAntenna;
2332         u32 macStaId1;
2333         u64 tsf = 0;
2334         int i, rx_chainmask, r;
2335
2336         ah->txchainmask = common->tx_chainmask;
2337         ah->rxchainmask = common->rx_chainmask;
2338
2339         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2340                 return -EIO;
2341
2342         if (curchan && !ah->chip_fullsleep)
2343                 ath9k_hw_getnf(ah, curchan);
2344
2345         if (bChannelChange &&
2346             (ah->chip_fullsleep != true) &&
2347             (ah->curchan != NULL) &&
2348             (chan->channel != ah->curchan->channel) &&
2349             ((chan->channelFlags & CHANNEL_ALL) ==
2350              (ah->curchan->channelFlags & CHANNEL_ALL)) &&
2351              !(AR_SREV_9280(ah) || IS_CHAN_A_5MHZ_SPACED(chan) ||
2352              IS_CHAN_A_5MHZ_SPACED(ah->curchan))) {
2353
2354                 if (ath9k_hw_channel_change(ah, chan)) {
2355                         ath9k_hw_loadnf(ah, ah->curchan);
2356                         ath9k_hw_start_nfcal(ah);
2357                         return 0;
2358                 }
2359         }
2360
2361         saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
2362         if (saveDefAntenna == 0)
2363                 saveDefAntenna = 1;
2364
2365         macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
2366
2367         /* For chips on which RTC reset is done, save TSF before it gets cleared */
2368         if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
2369                 tsf = ath9k_hw_gettsf64(ah);
2370
2371         saveLedState = REG_READ(ah, AR_CFG_LED) &
2372                 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
2373                  AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
2374
2375         ath9k_hw_mark_phy_inactive(ah);
2376
2377         if (AR_SREV_9271(ah) && ah->htc_reset_init) {
2378                 REG_WRITE(ah,
2379                           AR9271_RESET_POWER_DOWN_CONTROL,
2380                           AR9271_RADIO_RF_RST);
2381                 udelay(50);
2382         }
2383
2384         if (!ath9k_hw_chip_reset(ah, chan)) {
2385                 ath_print(common, ATH_DBG_FATAL, "Chip reset failed\n");
2386                 return -EINVAL;
2387         }
2388
2389         if (AR_SREV_9271(ah) && ah->htc_reset_init) {
2390                 ah->htc_reset_init = false;
2391                 REG_WRITE(ah,
2392                           AR9271_RESET_POWER_DOWN_CONTROL,
2393                           AR9271_GATE_MAC_CTL);
2394                 udelay(50);
2395         }
2396
2397         /* Restore TSF */
2398         if (tsf && AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
2399                 ath9k_hw_settsf64(ah, tsf);
2400
2401         if (AR_SREV_9280_10_OR_LATER(ah))
2402                 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
2403
2404         if (AR_SREV_9287_12_OR_LATER(ah)) {
2405                 /* Enable ASYNC FIFO */
2406                 REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
2407                                 AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
2408                 REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
2409                 REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
2410                                 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
2411                 REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
2412                                 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
2413         }
2414         r = ath9k_hw_process_ini(ah, chan);
2415         if (r)
2416                 return r;
2417
2418         /* Setup MFP options for CCMP */
2419         if (AR_SREV_9280_20_OR_LATER(ah)) {
2420                 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
2421                  * frames when constructing CCMP AAD. */
2422                 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
2423                               0xc7ff);
2424                 ah->sw_mgmt_crypto = false;
2425         } else if (AR_SREV_9160_10_OR_LATER(ah)) {
2426                 /* Disable hardware crypto for management frames */
2427                 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
2428                             AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
2429                 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
2430                             AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
2431                 ah->sw_mgmt_crypto = true;
2432         } else
2433                 ah->sw_mgmt_crypto = true;
2434
2435         if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
2436                 ath9k_hw_set_delta_slope(ah, chan);
2437
2438         if (AR_SREV_9280_10_OR_LATER(ah))
2439                 ath9k_hw_9280_spur_mitigate(ah, chan);
2440         else
2441                 ath9k_hw_spur_mitigate(ah, chan);
2442
2443         ah->eep_ops->set_board_values(ah, chan);
2444
2445         ath9k_hw_decrease_chain_power(ah, chan);
2446
2447         REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
2448         REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
2449                   | macStaId1
2450                   | AR_STA_ID1_RTS_USE_DEF
2451                   | (ah->config.
2452                      ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
2453                   | ah->sta_id1_defaults);
2454         ath9k_hw_set_operating_mode(ah, ah->opmode);
2455
2456         ath_hw_setbssidmask(common);
2457
2458         REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
2459
2460         ath9k_hw_write_associd(ah);
2461
2462         REG_WRITE(ah, AR_ISR, ~0);
2463
2464         REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
2465
2466         if (AR_SREV_9280_10_OR_LATER(ah))
2467                 ath9k_hw_ar9280_set_channel(ah, chan);
2468         else
2469                 if (!(ath9k_hw_set_channel(ah, chan)))
2470                         return -EIO;
2471
2472         for (i = 0; i < AR_NUM_DCU; i++)
2473                 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
2474
2475         ah->intr_txqs = 0;
2476         for (i = 0; i < ah->caps.total_queues; i++)
2477                 ath9k_hw_resettxqueue(ah, i);
2478
2479         ath9k_hw_init_interrupt_masks(ah, ah->opmode);
2480         ath9k_hw_init_qos(ah);
2481
2482         if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
2483                 ath9k_enable_rfkill(ah);
2484
2485         ath9k_hw_init_user_settings(ah);
2486
2487         if (AR_SREV_9287_12_OR_LATER(ah)) {
2488                 REG_WRITE(ah, AR_D_GBL_IFS_SIFS,
2489                           AR_D_GBL_IFS_SIFS_ASYNC_FIFO_DUR);
2490                 REG_WRITE(ah, AR_D_GBL_IFS_SLOT,
2491                           AR_D_GBL_IFS_SLOT_ASYNC_FIFO_DUR);
2492                 REG_WRITE(ah, AR_D_GBL_IFS_EIFS,
2493                           AR_D_GBL_IFS_EIFS_ASYNC_FIFO_DUR);
2494
2495                 REG_WRITE(ah, AR_TIME_OUT, AR_TIME_OUT_ACK_CTS_ASYNC_FIFO_DUR);
2496                 REG_WRITE(ah, AR_USEC, AR_USEC_ASYNC_FIFO_DUR);
2497
2498                 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
2499                             AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
2500                 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
2501                               AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
2502         }
2503         if (AR_SREV_9287_12_OR_LATER(ah)) {
2504                 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
2505                                 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
2506         }
2507
2508         REG_WRITE(ah, AR_STA_ID1,
2509                   REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
2510
2511         ath9k_hw_set_dma(ah);
2512
2513         REG_WRITE(ah, AR_OBS, 8);
2514
2515         if (ah->config.intr_mitigation) {
2516                 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
2517                 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
2518         }
2519
2520         ath9k_hw_init_bb(ah, chan);
2521
2522         if (!ath9k_hw_init_cal(ah, chan))
2523                 return -EIO;
2524
2525         rx_chainmask = ah->rxchainmask;
2526         if ((rx_chainmask == 0x5) || (rx_chainmask == 0x3)) {
2527                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
2528                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
2529         }
2530
2531         REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
2532
2533         /*
2534          * For big endian systems turn on swapping for descriptors
2535          */
2536         if (AR_SREV_9100(ah)) {
2537                 u32 mask;
2538                 mask = REG_READ(ah, AR_CFG);
2539                 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
2540                         ath_print(common, ATH_DBG_RESET,
2541                                 "CFG Byte Swap Set 0x%x\n", mask);
2542                 } else {
2543                         mask =
2544                                 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
2545                         REG_WRITE(ah, AR_CFG, mask);
2546                         ath_print(common, ATH_DBG_RESET,
2547                                 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
2548                 }
2549         } else {
2550                 /* Configure AR9271 target WLAN */
2551                 if (AR_SREV_9271(ah))
2552                         REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
2553 #ifdef __BIG_ENDIAN
2554                 else
2555                         REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
2556 #endif
2557         }
2558
2559         if (ah->btcoex_hw.enabled)
2560                 ath9k_hw_btcoex_enable(ah);
2561
2562         return 0;
2563 }
2564
2565 /************************/
2566 /* Key Cache Management */
2567 /************************/
2568
2569 bool ath9k_hw_keyreset(struct ath_hw *ah, u16 entry)
2570 {
2571         u32 keyType;
2572
2573         if (entry >= ah->caps.keycache_size) {
2574                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2575                           "keychache entry %u out of range\n", entry);
2576                 return false;
2577         }
2578
2579         keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
2580
2581         REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
2582         REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
2583         REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
2584         REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
2585         REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
2586         REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
2587         REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
2588         REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
2589
2590         if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
2591                 u16 micentry = entry + 64;
2592
2593                 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
2594                 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
2595                 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
2596                 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
2597
2598         }
2599
2600         return true;
2601 }
2602
2603 bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
2604 {
2605         u32 macHi, macLo;
2606
2607         if (entry >= ah->caps.keycache_size) {
2608                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2609                           "keychache entry %u out of range\n", entry);
2610                 return false;
2611         }
2612
2613         if (mac != NULL) {
2614                 macHi = (mac[5] << 8) | mac[4];
2615                 macLo = (mac[3] << 24) |
2616                         (mac[2] << 16) |
2617                         (mac[1] << 8) |
2618                         mac[0];
2619                 macLo >>= 1;
2620                 macLo |= (macHi & 1) << 31;
2621                 macHi >>= 1;
2622         } else {
2623                 macLo = macHi = 0;
2624         }
2625         REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
2626         REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | AR_KEYTABLE_VALID);
2627
2628         return true;
2629 }
2630
2631 bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
2632                                  const struct ath9k_keyval *k,
2633                                  const u8 *mac)
2634 {
2635         const struct ath9k_hw_capabilities *pCap = &ah->caps;
2636         struct ath_common *common = ath9k_hw_common(ah);
2637         u32 key0, key1, key2, key3, key4;
2638         u32 keyType;
2639
2640         if (entry >= pCap->keycache_size) {
2641                 ath_print(common, ATH_DBG_FATAL,
2642                           "keycache entry %u out of range\n", entry);
2643                 return false;
2644         }
2645
2646         switch (k->kv_type) {
2647         case ATH9K_CIPHER_AES_OCB:
2648                 keyType = AR_KEYTABLE_TYPE_AES;
2649                 break;
2650         case ATH9K_CIPHER_AES_CCM:
2651                 if (!(pCap->hw_caps & ATH9K_HW_CAP_CIPHER_AESCCM)) {
2652                         ath_print(common, ATH_DBG_ANY,
2653                                   "AES-CCM not supported by mac rev 0x%x\n",
2654                                   ah->hw_version.macRev);
2655                         return false;
2656                 }
2657                 keyType = AR_KEYTABLE_TYPE_CCM;
2658                 break;
2659         case ATH9K_CIPHER_TKIP:
2660                 keyType = AR_KEYTABLE_TYPE_TKIP;
2661                 if (ATH9K_IS_MIC_ENABLED(ah)
2662                     && entry + 64 >= pCap->keycache_size) {
2663                         ath_print(common, ATH_DBG_ANY,
2664                                   "entry %u inappropriate for TKIP\n", entry);
2665                         return false;
2666                 }
2667                 break;
2668         case ATH9K_CIPHER_WEP:
2669                 if (k->kv_len < WLAN_KEY_LEN_WEP40) {
2670                         ath_print(common, ATH_DBG_ANY,
2671                                   "WEP key length %u too small\n", k->kv_len);
2672                         return false;
2673                 }
2674                 if (k->kv_len <= WLAN_KEY_LEN_WEP40)
2675                         keyType = AR_KEYTABLE_TYPE_40;
2676                 else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
2677                         keyType = AR_KEYTABLE_TYPE_104;
2678                 else
2679                         keyType = AR_KEYTABLE_TYPE_128;
2680                 break;
2681         case ATH9K_CIPHER_CLR:
2682                 keyType = AR_KEYTABLE_TYPE_CLR;
2683                 break;
2684         default:
2685                 ath_print(common, ATH_DBG_FATAL,
2686                           "cipher %u not supported\n", k->kv_type);
2687                 return false;
2688         }
2689
2690         key0 = get_unaligned_le32(k->kv_val + 0);
2691         key1 = get_unaligned_le16(k->kv_val + 4);
2692         key2 = get_unaligned_le32(k->kv_val + 6);
2693         key3 = get_unaligned_le16(k->kv_val + 10);
2694         key4 = get_unaligned_le32(k->kv_val + 12);
2695         if (k->kv_len <= WLAN_KEY_LEN_WEP104)
2696                 key4 &= 0xff;
2697
2698         /*
2699          * Note: Key cache registers access special memory area that requires
2700          * two 32-bit writes to actually update the values in the internal
2701          * memory. Consequently, the exact order and pairs used here must be
2702          * maintained.
2703          */
2704
2705         if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
2706                 u16 micentry = entry + 64;
2707
2708                 /*
2709                  * Write inverted key[47:0] first to avoid Michael MIC errors
2710                  * on frames that could be sent or received at the same time.
2711                  * The correct key will be written in the end once everything
2712                  * else is ready.
2713                  */
2714                 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), ~key0);
2715                 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), ~key1);
2716
2717                 /* Write key[95:48] */
2718                 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
2719                 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
2720
2721                 /* Write key[127:96] and key type */
2722                 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
2723                 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
2724
2725                 /* Write MAC address for the entry */
2726                 (void) ath9k_hw_keysetmac(ah, entry, mac);
2727
2728                 if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) {
2729                         /*
2730                          * TKIP uses two key cache entries:
2731                          * Michael MIC TX/RX keys in the same key cache entry
2732                          * (idx = main index + 64):
2733                          * key0 [31:0] = RX key [31:0]
2734                          * key1 [15:0] = TX key [31:16]
2735                          * key1 [31:16] = reserved
2736                          * key2 [31:0] = RX key [63:32]
2737                          * key3 [15:0] = TX key [15:0]
2738                          * key3 [31:16] = reserved
2739                          * key4 [31:0] = TX key [63:32]
2740                          */
2741                         u32 mic0, mic1, mic2, mic3, mic4;
2742
2743                         mic0 = get_unaligned_le32(k->kv_mic + 0);
2744                         mic2 = get_unaligned_le32(k->kv_mic + 4);
2745                         mic1 = get_unaligned_le16(k->kv_txmic + 2) & 0xffff;
2746                         mic3 = get_unaligned_le16(k->kv_txmic + 0) & 0xffff;
2747                         mic4 = get_unaligned_le32(k->kv_txmic + 4);
2748
2749                         /* Write RX[31:0] and TX[31:16] */
2750                         REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
2751                         REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), mic1);
2752
2753                         /* Write RX[63:32] and TX[15:0] */
2754                         REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
2755                         REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), mic3);
2756
2757                         /* Write TX[63:32] and keyType(reserved) */
2758                         REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), mic4);
2759                         REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
2760                                   AR_KEYTABLE_TYPE_CLR);
2761
2762                 } else {
2763                         /*
2764                          * TKIP uses four key cache entries (two for group
2765                          * keys):
2766                          * Michael MIC TX/RX keys are in different key cache
2767                          * entries (idx = main index + 64 for TX and
2768                          * main index + 32 + 96 for RX):
2769                          * key0 [31:0] = TX/RX MIC key [31:0]
2770                          * key1 [31:0] = reserved
2771                          * key2 [31:0] = TX/RX MIC key [63:32]
2772                          * key3 [31:0] = reserved
2773                          * key4 [31:0] = reserved
2774                          *
2775                          * Upper layer code will call this function separately
2776                          * for TX and RX keys when these registers offsets are
2777                          * used.
2778                          */
2779                         u32 mic0, mic2;
2780
2781                         mic0 = get_unaligned_le32(k->kv_mic + 0);
2782                         mic2 = get_unaligned_le32(k->kv_mic + 4);
2783
2784                         /* Write MIC key[31:0] */
2785                         REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
2786                         REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
2787
2788                         /* Write MIC key[63:32] */
2789                         REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
2790                         REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
2791
2792                         /* Write TX[63:32] and keyType(reserved) */
2793                         REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
2794                         REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
2795                                   AR_KEYTABLE_TYPE_CLR);
2796                 }
2797
2798                 /* MAC address registers are reserved for the MIC entry */
2799                 REG_WRITE(ah, AR_KEYTABLE_MAC0(micentry), 0);
2800                 REG_WRITE(ah, AR_KEYTABLE_MAC1(micentry), 0);
2801
2802                 /*
2803                  * Write the correct (un-inverted) key[47:0] last to enable
2804                  * TKIP now that all other registers are set with correct
2805                  * values.
2806                  */
2807                 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
2808                 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
2809         } else {
2810                 /* Write key[47:0] */
2811                 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
2812                 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
2813
2814                 /* Write key[95:48] */
2815                 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
2816                 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
2817
2818                 /* Write key[127:96] and key type */
2819                 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
2820                 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
2821
2822                 /* Write MAC address for the entry */
2823                 (void) ath9k_hw_keysetmac(ah, entry, mac);
2824         }
2825
2826         return true;
2827 }
2828
2829 bool ath9k_hw_keyisvalid(struct ath_hw *ah, u16 entry)
2830 {
2831         if (entry < ah->caps.keycache_size) {
2832                 u32 val = REG_READ(ah, AR_KEYTABLE_MAC1(entry));
2833                 if (val & AR_KEYTABLE_VALID)
2834                         return true;
2835         }
2836         return false;
2837 }
2838
2839 /******************************/
2840 /* Power Management (Chipset) */
2841 /******************************/
2842
2843 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
2844 {
2845         REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2846         if (setChip) {
2847                 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
2848                             AR_RTC_FORCE_WAKE_EN);
2849                 if (!AR_SREV_9100(ah))
2850                         REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
2851
2852                 if(!AR_SREV_5416(ah))
2853                         REG_CLR_BIT(ah, (AR_RTC_RESET),
2854                                     AR_RTC_RESET_EN);
2855         }
2856 }
2857
2858 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
2859 {
2860         REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2861         if (setChip) {
2862                 struct ath9k_hw_capabilities *pCap = &ah->caps;
2863
2864                 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
2865                         REG_WRITE(ah, AR_RTC_FORCE_WAKE,
2866                                   AR_RTC_FORCE_WAKE_ON_INT);
2867                 } else {
2868                         REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
2869                                     AR_RTC_FORCE_WAKE_EN);
2870                 }
2871         }
2872 }
2873
2874 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
2875 {
2876         u32 val;
2877         int i;
2878
2879         if (setChip) {
2880                 if ((REG_READ(ah, AR_RTC_STATUS) &
2881                      AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
2882                         if (ath9k_hw_set_reset_reg(ah,
2883                                            ATH9K_RESET_POWER_ON) != true) {
2884                                 return false;
2885                         }
2886                         ath9k_hw_init_pll(ah, NULL);
2887                 }
2888                 if (AR_SREV_9100(ah))
2889                         REG_SET_BIT(ah, AR_RTC_RESET,
2890                                     AR_RTC_RESET_EN);
2891
2892                 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2893                             AR_RTC_FORCE_WAKE_EN);
2894                 udelay(50);
2895
2896                 for (i = POWER_UP_TIME / 50; i > 0; i--) {
2897                         val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
2898                         if (val == AR_RTC_STATUS_ON)
2899                                 break;
2900                         udelay(50);
2901                         REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2902                                     AR_RTC_FORCE_WAKE_EN);
2903                 }
2904                 if (i == 0) {
2905                         ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2906                                   "Failed to wakeup in %uus\n",
2907                                   POWER_UP_TIME / 20);
2908                         return false;
2909                 }
2910         }
2911
2912         REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2913
2914         return true;
2915 }
2916
2917 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
2918 {
2919         struct ath_common *common = ath9k_hw_common(ah);
2920         int status = true, setChip = true;
2921         static const char *modes[] = {
2922                 "AWAKE",
2923                 "FULL-SLEEP",
2924                 "NETWORK SLEEP",
2925                 "UNDEFINED"
2926         };
2927
2928         if (ah->power_mode == mode)
2929                 return status;
2930
2931         ath_print(common, ATH_DBG_RESET, "%s -> %s\n",
2932                   modes[ah->power_mode], modes[mode]);
2933
2934         switch (mode) {
2935         case ATH9K_PM_AWAKE:
2936                 status = ath9k_hw_set_power_awake(ah, setChip);
2937                 break;
2938         case ATH9K_PM_FULL_SLEEP:
2939                 ath9k_set_power_sleep(ah, setChip);
2940                 ah->chip_fullsleep = true;
2941                 break;
2942         case ATH9K_PM_NETWORK_SLEEP:
2943                 ath9k_set_power_network_sleep(ah, setChip);
2944                 break;
2945         default:
2946                 ath_print(common, ATH_DBG_FATAL,
2947                           "Unknown power mode %u\n", mode);
2948                 return false;
2949         }
2950         ah->power_mode = mode;
2951
2952         return status;
2953 }
2954
2955 /*
2956  * Helper for ASPM support.
2957  *
2958  * Disable PLL when in L0s as well as receiver clock when in L1.
2959  * This power saving option must be enabled through the SerDes.
2960  *
2961  * Programming the SerDes must go through the same 288 bit serial shift
2962  * register as the other analog registers.  Hence the 9 writes.
2963  */
2964 void ath9k_hw_configpcipowersave(struct ath_hw *ah, int restore, int power_off)
2965 {
2966         u8 i;
2967         u32 val;
2968
2969         if (ah->is_pciexpress != true)
2970                 return;
2971
2972         /* Do not touch SerDes registers */
2973         if (ah->config.pcie_powersave_enable == 2)
2974                 return;
2975
2976         /* Nothing to do on restore for 11N */
2977         if (!restore) {
2978                 if (AR_SREV_9280_20_OR_LATER(ah)) {
2979                         /*
2980                          * AR9280 2.0 or later chips use SerDes values from the
2981                          * initvals.h initialized depending on chipset during
2982                          * ath9k_hw_init()
2983                          */
2984                         for (i = 0; i < ah->iniPcieSerdes.ia_rows; i++) {
2985                                 REG_WRITE(ah, INI_RA(&ah->iniPcieSerdes, i, 0),
2986                                           INI_RA(&ah->iniPcieSerdes, i, 1));
2987                         }
2988                 } else if (AR_SREV_9280(ah) &&
2989                            (ah->hw_version.macRev == AR_SREV_REVISION_9280_10)) {
2990                         REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fd00);
2991                         REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
2992
2993                         /* RX shut off when elecidle is asserted */
2994                         REG_WRITE(ah, AR_PCIE_SERDES, 0xa8000019);
2995                         REG_WRITE(ah, AR_PCIE_SERDES, 0x13160820);
2996                         REG_WRITE(ah, AR_PCIE_SERDES, 0xe5980560);
2997
2998                         /* Shut off CLKREQ active in L1 */
2999                         if (ah->config.pcie_clock_req)
3000                                 REG_WRITE(ah, AR_PCIE_SERDES, 0x401deffc);
3001                         else
3002                                 REG_WRITE(ah, AR_PCIE_SERDES, 0x401deffd);
3003
3004                         REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
3005                         REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
3006                         REG_WRITE(ah, AR_PCIE_SERDES, 0x00043007);
3007
3008                         /* Load the new settings */
3009                         REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
3010
3011                 } else {
3012                         REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
3013                         REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
3014
3015                         /* RX shut off when elecidle is asserted */
3016                         REG_WRITE(ah, AR_PCIE_SERDES, 0x28000039);
3017                         REG_WRITE(ah, AR_PCIE_SERDES, 0x53160824);
3018                         REG_WRITE(ah, AR_PCIE_SERDES, 0xe5980579);
3019
3020                         /*
3021                          * Ignore ah->ah_config.pcie_clock_req setting for
3022                          * pre-AR9280 11n
3023                          */
3024                         REG_WRITE(ah, AR_PCIE_SERDES, 0x001defff);
3025
3026                         REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
3027                         REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
3028                         REG_WRITE(ah, AR_PCIE_SERDES, 0x000e3007);
3029
3030                         /* Load the new settings */
3031                         REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
3032                 }
3033
3034                 udelay(1000);
3035
3036                 /* set bit 19 to allow forcing of pcie core into L1 state */
3037                 REG_SET_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);
3038
3039                 /* Several PCIe massages to ensure proper behaviour */
3040                 if (ah->config.pcie_waen) {
3041                         val = ah->config.pcie_waen;
3042                         if (!power_off)
3043                                 val &= (~AR_WA_D3_L1_DISABLE);
3044                 } else {
3045                         if (AR_SREV_9285(ah) || AR_SREV_9271(ah) ||
3046                             AR_SREV_9287(ah)) {
3047                                 val = AR9285_WA_DEFAULT;
3048                                 if (!power_off)
3049                                         val &= (~AR_WA_D3_L1_DISABLE);
3050                         } else if (AR_SREV_9280(ah)) {
3051                                 /*
3052                                  * On AR9280 chips bit 22 of 0x4004 needs to be
3053                                  * set otherwise card may disappear.
3054