2 * Copyright (c) 2008-2009 Atheros Communications Inc.
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.
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.
18 #include <asm/unaligned.h>
24 #define ATH9K_CLOCK_RATE_CCK 22
25 #define ATH9K_CLOCK_RATE_5GHZ_OFDM 40
26 #define ATH9K_CLOCK_RATE_2GHZ_OFDM 44
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,
34 MODULE_AUTHOR("Atheros Communications");
35 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
36 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
37 MODULE_LICENSE("Dual BSD/GPL");
39 static int __init ath9k_init(void)
43 module_init(ath9k_init);
45 static void __exit ath9k_exit(void)
49 module_exit(ath9k_exit);
51 /********************/
52 /* Helper Functions */
53 /********************/
55 static u32 ath9k_hw_mac_clks(struct ath_hw *ah, u32 usecs)
57 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
59 if (!ah->curchan) /* should really check for CCK instead */
60 return usecs *ATH9K_CLOCK_RATE_CCK;
61 if (conf->channel->band == IEEE80211_BAND_2GHZ)
62 return usecs *ATH9K_CLOCK_RATE_2GHZ_OFDM;
63 return usecs *ATH9K_CLOCK_RATE_5GHZ_OFDM;
66 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
68 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
70 if (conf_is_ht40(conf))
71 return ath9k_hw_mac_clks(ah, usecs) * 2;
73 return ath9k_hw_mac_clks(ah, usecs);
76 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
80 BUG_ON(timeout < AH_TIME_QUANTUM);
82 for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
83 if ((REG_READ(ah, reg) & mask) == val)
86 udelay(AH_TIME_QUANTUM);
89 ath_print(ath9k_hw_common(ah), ATH_DBG_ANY,
90 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
91 timeout, reg, REG_READ(ah, reg), mask, val);
95 EXPORT_SYMBOL(ath9k_hw_wait);
97 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
102 for (i = 0, retval = 0; i < n; i++) {
103 retval = (retval << 1) | (val & 1);
109 bool ath9k_get_channel_edges(struct ath_hw *ah,
113 struct ath9k_hw_capabilities *pCap = &ah->caps;
115 if (flags & CHANNEL_5GHZ) {
116 *low = pCap->low_5ghz_chan;
117 *high = pCap->high_5ghz_chan;
120 if ((flags & CHANNEL_2GHZ)) {
121 *low = pCap->low_2ghz_chan;
122 *high = pCap->high_2ghz_chan;
128 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
130 u32 frameLen, u16 rateix,
133 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
139 case WLAN_RC_PHY_CCK:
140 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
143 numBits = frameLen << 3;
144 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
146 case WLAN_RC_PHY_OFDM:
147 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
148 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
149 numBits = OFDM_PLCP_BITS + (frameLen << 3);
150 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
151 txTime = OFDM_SIFS_TIME_QUARTER
152 + OFDM_PREAMBLE_TIME_QUARTER
153 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
154 } else if (ah->curchan &&
155 IS_CHAN_HALF_RATE(ah->curchan)) {
156 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
157 numBits = OFDM_PLCP_BITS + (frameLen << 3);
158 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
159 txTime = OFDM_SIFS_TIME_HALF +
160 OFDM_PREAMBLE_TIME_HALF
161 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
163 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
164 numBits = OFDM_PLCP_BITS + (frameLen << 3);
165 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
166 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
167 + (numSymbols * OFDM_SYMBOL_TIME);
171 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
172 "Unknown phy %u (rate ix %u)\n", phy, rateix);
179 EXPORT_SYMBOL(ath9k_hw_computetxtime);
181 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
182 struct ath9k_channel *chan,
183 struct chan_centers *centers)
187 if (!IS_CHAN_HT40(chan)) {
188 centers->ctl_center = centers->ext_center =
189 centers->synth_center = chan->channel;
193 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
194 (chan->chanmode == CHANNEL_G_HT40PLUS)) {
195 centers->synth_center =
196 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
199 centers->synth_center =
200 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
204 centers->ctl_center =
205 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
206 /* 25 MHz spacing is supported by hw but not on upper layers */
207 centers->ext_center =
208 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
215 static void ath9k_hw_read_revisions(struct ath_hw *ah)
219 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
222 val = REG_READ(ah, AR_SREV);
223 ah->hw_version.macVersion =
224 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
225 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
226 ah->is_pciexpress = (val & AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
228 if (!AR_SREV_9100(ah))
229 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
231 ah->hw_version.macRev = val & AR_SREV_REVISION;
233 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
234 ah->is_pciexpress = true;
238 static int ath9k_hw_get_radiorev(struct ath_hw *ah)
243 REG_WRITE(ah, AR_PHY(0x36), 0x00007058);
245 for (i = 0; i < 8; i++)
246 REG_WRITE(ah, AR_PHY(0x20), 0x00010000);
247 val = (REG_READ(ah, AR_PHY(256)) >> 24) & 0xff;
248 val = ((val & 0xf0) >> 4) | ((val & 0x0f) << 4);
250 return ath9k_hw_reverse_bits(val, 8);
253 /************************************/
254 /* HW Attach, Detach, Init Routines */
255 /************************************/
257 static void ath9k_hw_disablepcie(struct ath_hw *ah)
259 if (AR_SREV_9100(ah))
262 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
263 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
264 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
265 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
266 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
267 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
268 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
269 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
270 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
272 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
275 static bool ath9k_hw_chip_test(struct ath_hw *ah)
277 struct ath_common *common = ath9k_hw_common(ah);
278 u32 regAddr[2] = { AR_STA_ID0, AR_PHY_BASE + (8 << 2) };
280 u32 patternData[4] = { 0x55555555,
286 for (i = 0; i < 2; i++) {
287 u32 addr = regAddr[i];
290 regHold[i] = REG_READ(ah, addr);
291 for (j = 0; j < 0x100; j++) {
292 wrData = (j << 16) | j;
293 REG_WRITE(ah, addr, wrData);
294 rdData = REG_READ(ah, addr);
295 if (rdData != wrData) {
296 ath_print(common, ATH_DBG_FATAL,
297 "address test failed "
298 "addr: 0x%08x - wr:0x%08x != "
300 addr, wrData, rdData);
304 for (j = 0; j < 4; j++) {
305 wrData = patternData[j];
306 REG_WRITE(ah, addr, wrData);
307 rdData = REG_READ(ah, addr);
308 if (wrData != rdData) {
309 ath_print(common, ATH_DBG_FATAL,
310 "address test failed "
311 "addr: 0x%08x - wr:0x%08x != "
313 addr, wrData, rdData);
317 REG_WRITE(ah, regAddr[i], regHold[i]);
324 static void ath9k_hw_init_config(struct ath_hw *ah)
328 ah->config.dma_beacon_response_time = 2;
329 ah->config.sw_beacon_response_time = 10;
330 ah->config.additional_swba_backoff = 0;
331 ah->config.ack_6mb = 0x0;
332 ah->config.cwm_ignore_extcca = 0;
333 ah->config.pcie_powersave_enable = 0;
334 ah->config.pcie_clock_req = 0;
335 ah->config.pcie_waen = 0;
336 ah->config.analog_shiftreg = 1;
337 ah->config.ofdm_trig_low = 200;
338 ah->config.ofdm_trig_high = 500;
339 ah->config.cck_trig_high = 200;
340 ah->config.cck_trig_low = 100;
341 ah->config.enable_ani = 1;
343 for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
344 ah->config.spurchans[i][0] = AR_NO_SPUR;
345 ah->config.spurchans[i][1] = AR_NO_SPUR;
348 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
349 ah->config.ht_enable = 1;
351 ah->config.ht_enable = 0;
353 ah->config.rx_intr_mitigation = true;
356 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
357 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
358 * This means we use it for all AR5416 devices, and the few
359 * minor PCI AR9280 devices out there.
361 * Serialization is required because these devices do not handle
362 * well the case of two concurrent reads/writes due to the latency
363 * involved. During one read/write another read/write can be issued
364 * on another CPU while the previous read/write may still be working
365 * on our hardware, if we hit this case the hardware poops in a loop.
366 * We prevent this by serializing reads and writes.
368 * This issue is not present on PCI-Express devices or pre-AR5416
369 * devices (legacy, 802.11abg).
371 if (num_possible_cpus() > 1)
372 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
374 EXPORT_SYMBOL(ath9k_hw_init);
376 static void ath9k_hw_init_defaults(struct ath_hw *ah)
378 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
380 regulatory->country_code = CTRY_DEFAULT;
381 regulatory->power_limit = MAX_RATE_POWER;
382 regulatory->tp_scale = ATH9K_TP_SCALE_MAX;
384 ah->hw_version.magic = AR5416_MAGIC;
385 ah->hw_version.subvendorid = 0;
388 if (ah->hw_version.devid == AR5416_AR9100_DEVID)
389 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
390 if (!AR_SREV_9100(ah))
391 ah->ah_flags = AH_USE_EEPROM;
394 ah->sta_id1_defaults = AR_STA_ID1_CRPT_MIC_ENABLE;
395 ah->beacon_interval = 100;
396 ah->enable_32kHz_clock = DONT_USE_32KHZ;
397 ah->slottime = (u32) -1;
398 ah->globaltxtimeout = (u32) -1;
399 ah->power_mode = ATH9K_PM_UNDEFINED;
402 static int ath9k_hw_rf_claim(struct ath_hw *ah)
406 REG_WRITE(ah, AR_PHY(0), 0x00000007);
408 val = ath9k_hw_get_radiorev(ah);
409 switch (val & AR_RADIO_SREV_MAJOR) {
411 val = AR_RAD5133_SREV_MAJOR;
413 case AR_RAD5133_SREV_MAJOR:
414 case AR_RAD5122_SREV_MAJOR:
415 case AR_RAD2133_SREV_MAJOR:
416 case AR_RAD2122_SREV_MAJOR:
419 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
420 "Radio Chip Rev 0x%02X not supported\n",
421 val & AR_RADIO_SREV_MAJOR);
425 ah->hw_version.analog5GhzRev = val;
430 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
432 struct ath_common *common = ath9k_hw_common(ah);
438 for (i = 0; i < 3; i++) {
439 eeval = ah->eep_ops->get_eeprom(ah, AR_EEPROM_MAC(i));
441 common->macaddr[2 * i] = eeval >> 8;
442 common->macaddr[2 * i + 1] = eeval & 0xff;
444 if (sum == 0 || sum == 0xffff * 3)
445 return -EADDRNOTAVAIL;
450 static void ath9k_hw_init_rxgain_ini(struct ath_hw *ah)
454 if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >= AR5416_EEP_MINOR_VER_17) {
455 rxgain_type = ah->eep_ops->get_eeprom(ah, EEP_RXGAIN_TYPE);
457 if (rxgain_type == AR5416_EEP_RXGAIN_13DB_BACKOFF)
458 INIT_INI_ARRAY(&ah->iniModesRxGain,
459 ar9280Modes_backoff_13db_rxgain_9280_2,
460 ARRAY_SIZE(ar9280Modes_backoff_13db_rxgain_9280_2), 6);
461 else if (rxgain_type == AR5416_EEP_RXGAIN_23DB_BACKOFF)
462 INIT_INI_ARRAY(&ah->iniModesRxGain,
463 ar9280Modes_backoff_23db_rxgain_9280_2,
464 ARRAY_SIZE(ar9280Modes_backoff_23db_rxgain_9280_2), 6);
466 INIT_INI_ARRAY(&ah->iniModesRxGain,
467 ar9280Modes_original_rxgain_9280_2,
468 ARRAY_SIZE(ar9280Modes_original_rxgain_9280_2), 6);
470 INIT_INI_ARRAY(&ah->iniModesRxGain,
471 ar9280Modes_original_rxgain_9280_2,
472 ARRAY_SIZE(ar9280Modes_original_rxgain_9280_2), 6);
476 static void ath9k_hw_init_txgain_ini(struct ath_hw *ah)
480 if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >= AR5416_EEP_MINOR_VER_19) {
481 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);
483 if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER)
484 INIT_INI_ARRAY(&ah->iniModesTxGain,
485 ar9280Modes_high_power_tx_gain_9280_2,
486 ARRAY_SIZE(ar9280Modes_high_power_tx_gain_9280_2), 6);
488 INIT_INI_ARRAY(&ah->iniModesTxGain,
489 ar9280Modes_original_tx_gain_9280_2,
490 ARRAY_SIZE(ar9280Modes_original_tx_gain_9280_2), 6);
492 INIT_INI_ARRAY(&ah->iniModesTxGain,
493 ar9280Modes_original_tx_gain_9280_2,
494 ARRAY_SIZE(ar9280Modes_original_tx_gain_9280_2), 6);
498 static int ath9k_hw_post_init(struct ath_hw *ah)
502 if (!AR_SREV_9271(ah)) {
503 if (!ath9k_hw_chip_test(ah))
507 ecode = ath9k_hw_rf_claim(ah);
511 ecode = ath9k_hw_eeprom_init(ah);
515 ath_print(ath9k_hw_common(ah), ATH_DBG_CONFIG,
516 "Eeprom VER: %d, REV: %d\n",
517 ah->eep_ops->get_eeprom_ver(ah),
518 ah->eep_ops->get_eeprom_rev(ah));
520 if (!AR_SREV_9280_10_OR_LATER(ah)) {
521 ecode = ath9k_hw_rf_alloc_ext_banks(ah);
523 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
524 "Failed allocating banks for "
530 if (!AR_SREV_9100(ah)) {
531 ath9k_hw_ani_setup(ah);
532 ath9k_hw_ani_init(ah);
538 static bool ath9k_hw_devid_supported(u16 devid)
541 case AR5416_DEVID_PCI:
542 case AR5416_DEVID_PCIE:
543 case AR5416_AR9100_DEVID:
544 case AR9160_DEVID_PCI:
545 case AR9280_DEVID_PCI:
546 case AR9280_DEVID_PCIE:
547 case AR9285_DEVID_PCIE:
548 case AR5416_DEVID_AR9287_PCI:
549 case AR5416_DEVID_AR9287_PCIE:
551 case AR2427_DEVID_PCIE:
559 static bool ath9k_hw_macversion_supported(u32 macversion)
561 switch (macversion) {
562 case AR_SREV_VERSION_5416_PCI:
563 case AR_SREV_VERSION_5416_PCIE:
564 case AR_SREV_VERSION_9160:
565 case AR_SREV_VERSION_9100:
566 case AR_SREV_VERSION_9280:
567 case AR_SREV_VERSION_9285:
568 case AR_SREV_VERSION_9287:
569 case AR_SREV_VERSION_9271:
577 static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
579 if (AR_SREV_9160_10_OR_LATER(ah)) {
580 if (AR_SREV_9280_10_OR_LATER(ah)) {
581 ah->iq_caldata.calData = &iq_cal_single_sample;
582 ah->adcgain_caldata.calData =
583 &adc_gain_cal_single_sample;
584 ah->adcdc_caldata.calData =
585 &adc_dc_cal_single_sample;
586 ah->adcdc_calinitdata.calData =
589 ah->iq_caldata.calData = &iq_cal_multi_sample;
590 ah->adcgain_caldata.calData =
591 &adc_gain_cal_multi_sample;
592 ah->adcdc_caldata.calData =
593 &adc_dc_cal_multi_sample;
594 ah->adcdc_calinitdata.calData =
597 ah->supp_cals = ADC_GAIN_CAL | ADC_DC_CAL | IQ_MISMATCH_CAL;
601 static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
603 if (AR_SREV_9271(ah)) {
604 INIT_INI_ARRAY(&ah->iniModes, ar9271Modes_9271,
605 ARRAY_SIZE(ar9271Modes_9271), 6);
606 INIT_INI_ARRAY(&ah->iniCommon, ar9271Common_9271,
607 ARRAY_SIZE(ar9271Common_9271), 2);
608 INIT_INI_ARRAY(&ah->iniCommon_normal_cck_fir_coeff_9271,
609 ar9271Common_normal_cck_fir_coeff_9271,
610 ARRAY_SIZE(ar9271Common_normal_cck_fir_coeff_9271), 2);
611 INIT_INI_ARRAY(&ah->iniCommon_japan_2484_cck_fir_coeff_9271,
612 ar9271Common_japan_2484_cck_fir_coeff_9271,
613 ARRAY_SIZE(ar9271Common_japan_2484_cck_fir_coeff_9271), 2);
614 INIT_INI_ARRAY(&ah->iniModes_9271_1_0_only,
615 ar9271Modes_9271_1_0_only,
616 ARRAY_SIZE(ar9271Modes_9271_1_0_only), 6);
617 INIT_INI_ARRAY(&ah->iniModes_9271_ANI_reg, ar9271Modes_9271_ANI_reg,
618 ARRAY_SIZE(ar9271Modes_9271_ANI_reg), 6);
619 INIT_INI_ARRAY(&ah->iniModes_high_power_tx_gain_9271,
620 ar9271Modes_high_power_tx_gain_9271,
621 ARRAY_SIZE(ar9271Modes_high_power_tx_gain_9271), 6);
622 INIT_INI_ARRAY(&ah->iniModes_normal_power_tx_gain_9271,
623 ar9271Modes_normal_power_tx_gain_9271,
624 ARRAY_SIZE(ar9271Modes_normal_power_tx_gain_9271), 6);
628 if (AR_SREV_9287_11_OR_LATER(ah)) {
629 INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_1,
630 ARRAY_SIZE(ar9287Modes_9287_1_1), 6);
631 INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_1,
632 ARRAY_SIZE(ar9287Common_9287_1_1), 2);
633 if (ah->config.pcie_clock_req)
634 INIT_INI_ARRAY(&ah->iniPcieSerdes,
635 ar9287PciePhy_clkreq_off_L1_9287_1_1,
636 ARRAY_SIZE(ar9287PciePhy_clkreq_off_L1_9287_1_1), 2);
638 INIT_INI_ARRAY(&ah->iniPcieSerdes,
639 ar9287PciePhy_clkreq_always_on_L1_9287_1_1,
640 ARRAY_SIZE(ar9287PciePhy_clkreq_always_on_L1_9287_1_1),
642 } else if (AR_SREV_9287_10_OR_LATER(ah)) {
643 INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_0,
644 ARRAY_SIZE(ar9287Modes_9287_1_0), 6);
645 INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_0,
646 ARRAY_SIZE(ar9287Common_9287_1_0), 2);
648 if (ah->config.pcie_clock_req)
649 INIT_INI_ARRAY(&ah->iniPcieSerdes,
650 ar9287PciePhy_clkreq_off_L1_9287_1_0,
651 ARRAY_SIZE(ar9287PciePhy_clkreq_off_L1_9287_1_0), 2);
653 INIT_INI_ARRAY(&ah->iniPcieSerdes,
654 ar9287PciePhy_clkreq_always_on_L1_9287_1_0,
655 ARRAY_SIZE(ar9287PciePhy_clkreq_always_on_L1_9287_1_0),
657 } else if (AR_SREV_9285_12_OR_LATER(ah)) {
660 INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285_1_2,
661 ARRAY_SIZE(ar9285Modes_9285_1_2), 6);
662 INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285_1_2,
663 ARRAY_SIZE(ar9285Common_9285_1_2), 2);
665 if (ah->config.pcie_clock_req) {
666 INIT_INI_ARRAY(&ah->iniPcieSerdes,
667 ar9285PciePhy_clkreq_off_L1_9285_1_2,
668 ARRAY_SIZE(ar9285PciePhy_clkreq_off_L1_9285_1_2), 2);
670 INIT_INI_ARRAY(&ah->iniPcieSerdes,
671 ar9285PciePhy_clkreq_always_on_L1_9285_1_2,
672 ARRAY_SIZE(ar9285PciePhy_clkreq_always_on_L1_9285_1_2),
675 } else if (AR_SREV_9285_10_OR_LATER(ah)) {
676 INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285,
677 ARRAY_SIZE(ar9285Modes_9285), 6);
678 INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285,
679 ARRAY_SIZE(ar9285Common_9285), 2);
681 if (ah->config.pcie_clock_req) {
682 INIT_INI_ARRAY(&ah->iniPcieSerdes,
683 ar9285PciePhy_clkreq_off_L1_9285,
684 ARRAY_SIZE(ar9285PciePhy_clkreq_off_L1_9285), 2);
686 INIT_INI_ARRAY(&ah->iniPcieSerdes,
687 ar9285PciePhy_clkreq_always_on_L1_9285,
688 ARRAY_SIZE(ar9285PciePhy_clkreq_always_on_L1_9285), 2);
690 } else if (AR_SREV_9280_20_OR_LATER(ah)) {
691 INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280_2,
692 ARRAY_SIZE(ar9280Modes_9280_2), 6);
693 INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280_2,
694 ARRAY_SIZE(ar9280Common_9280_2), 2);
696 if (ah->config.pcie_clock_req) {
697 INIT_INI_ARRAY(&ah->iniPcieSerdes,
698 ar9280PciePhy_clkreq_off_L1_9280,
699 ARRAY_SIZE(ar9280PciePhy_clkreq_off_L1_9280),2);
701 INIT_INI_ARRAY(&ah->iniPcieSerdes,
702 ar9280PciePhy_clkreq_always_on_L1_9280,
703 ARRAY_SIZE(ar9280PciePhy_clkreq_always_on_L1_9280), 2);
705 INIT_INI_ARRAY(&ah->iniModesAdditional,
706 ar9280Modes_fast_clock_9280_2,
707 ARRAY_SIZE(ar9280Modes_fast_clock_9280_2), 3);
708 } else if (AR_SREV_9280_10_OR_LATER(ah)) {
709 INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280,
710 ARRAY_SIZE(ar9280Modes_9280), 6);
711 INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280,
712 ARRAY_SIZE(ar9280Common_9280), 2);
713 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
714 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9160,
715 ARRAY_SIZE(ar5416Modes_9160), 6);
716 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9160,
717 ARRAY_SIZE(ar5416Common_9160), 2);
718 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0_9160,
719 ARRAY_SIZE(ar5416Bank0_9160), 2);
720 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain_9160,
721 ARRAY_SIZE(ar5416BB_RfGain_9160), 3);
722 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1_9160,
723 ARRAY_SIZE(ar5416Bank1_9160), 2);
724 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2_9160,
725 ARRAY_SIZE(ar5416Bank2_9160), 2);
726 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3_9160,
727 ARRAY_SIZE(ar5416Bank3_9160), 3);
728 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6_9160,
729 ARRAY_SIZE(ar5416Bank6_9160), 3);
730 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC_9160,
731 ARRAY_SIZE(ar5416Bank6TPC_9160), 3);
732 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7_9160,
733 ARRAY_SIZE(ar5416Bank7_9160), 2);
734 if (AR_SREV_9160_11(ah)) {
735 INIT_INI_ARRAY(&ah->iniAddac,
737 ARRAY_SIZE(ar5416Addac_91601_1), 2);
739 INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9160,
740 ARRAY_SIZE(ar5416Addac_9160), 2);
742 } else if (AR_SREV_9100_OR_LATER(ah)) {
743 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9100,
744 ARRAY_SIZE(ar5416Modes_9100), 6);
745 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9100,
746 ARRAY_SIZE(ar5416Common_9100), 2);
747 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0_9100,
748 ARRAY_SIZE(ar5416Bank0_9100), 2);
749 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain_9100,
750 ARRAY_SIZE(ar5416BB_RfGain_9100), 3);
751 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1_9100,
752 ARRAY_SIZE(ar5416Bank1_9100), 2);
753 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2_9100,
754 ARRAY_SIZE(ar5416Bank2_9100), 2);
755 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3_9100,
756 ARRAY_SIZE(ar5416Bank3_9100), 3);
757 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6_9100,
758 ARRAY_SIZE(ar5416Bank6_9100), 3);
759 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC_9100,
760 ARRAY_SIZE(ar5416Bank6TPC_9100), 3);
761 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7_9100,
762 ARRAY_SIZE(ar5416Bank7_9100), 2);
763 INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9100,
764 ARRAY_SIZE(ar5416Addac_9100), 2);
766 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes,
767 ARRAY_SIZE(ar5416Modes), 6);
768 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common,
769 ARRAY_SIZE(ar5416Common), 2);
770 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0,
771 ARRAY_SIZE(ar5416Bank0), 2);
772 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain,
773 ARRAY_SIZE(ar5416BB_RfGain), 3);
774 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1,
775 ARRAY_SIZE(ar5416Bank1), 2);
776 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2,
777 ARRAY_SIZE(ar5416Bank2), 2);
778 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3,
779 ARRAY_SIZE(ar5416Bank3), 3);
780 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6,
781 ARRAY_SIZE(ar5416Bank6), 3);
782 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC,
783 ARRAY_SIZE(ar5416Bank6TPC), 3);
784 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7,
785 ARRAY_SIZE(ar5416Bank7), 2);
786 INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac,
787 ARRAY_SIZE(ar5416Addac), 2);
791 static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
793 if (AR_SREV_9287_11_OR_LATER(ah))
794 INIT_INI_ARRAY(&ah->iniModesRxGain,
795 ar9287Modes_rx_gain_9287_1_1,
796 ARRAY_SIZE(ar9287Modes_rx_gain_9287_1_1), 6);
797 else if (AR_SREV_9287_10(ah))
798 INIT_INI_ARRAY(&ah->iniModesRxGain,
799 ar9287Modes_rx_gain_9287_1_0,
800 ARRAY_SIZE(ar9287Modes_rx_gain_9287_1_0), 6);
801 else if (AR_SREV_9280_20(ah))
802 ath9k_hw_init_rxgain_ini(ah);
804 if (AR_SREV_9287_11_OR_LATER(ah)) {
805 INIT_INI_ARRAY(&ah->iniModesTxGain,
806 ar9287Modes_tx_gain_9287_1_1,
807 ARRAY_SIZE(ar9287Modes_tx_gain_9287_1_1), 6);
808 } else if (AR_SREV_9287_10(ah)) {
809 INIT_INI_ARRAY(&ah->iniModesTxGain,
810 ar9287Modes_tx_gain_9287_1_0,
811 ARRAY_SIZE(ar9287Modes_tx_gain_9287_1_0), 6);
812 } else if (AR_SREV_9280_20(ah)) {
813 ath9k_hw_init_txgain_ini(ah);
814 } else if (AR_SREV_9285_12_OR_LATER(ah)) {
815 u32 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);
818 if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER) {
819 INIT_INI_ARRAY(&ah->iniModesTxGain,
820 ar9285Modes_high_power_tx_gain_9285_1_2,
821 ARRAY_SIZE(ar9285Modes_high_power_tx_gain_9285_1_2), 6);
823 INIT_INI_ARRAY(&ah->iniModesTxGain,
824 ar9285Modes_original_tx_gain_9285_1_2,
825 ARRAY_SIZE(ar9285Modes_original_tx_gain_9285_1_2), 6);
831 static void ath9k_hw_init_eeprom_fix(struct ath_hw *ah)
835 if (ah->hw_version.devid == AR9280_DEVID_PCI) {
838 for (i = 0; i < ah->iniModes.ia_rows; i++) {
839 u32 reg = INI_RA(&ah->iniModes, i, 0);
841 for (j = 1; j < ah->iniModes.ia_columns; j++) {
842 u32 val = INI_RA(&ah->iniModes, i, j);
844 INI_RA(&ah->iniModes, i, j) =
845 ath9k_hw_ini_fixup(ah,
853 int ath9k_hw_init(struct ath_hw *ah)
855 struct ath_common *common = ath9k_hw_common(ah);
858 if (!ath9k_hw_devid_supported(ah->hw_version.devid)) {
859 ath_print(common, ATH_DBG_FATAL,
860 "Unsupported device ID: 0x%0x\n",
861 ah->hw_version.devid);
865 ath9k_hw_init_defaults(ah);
866 ath9k_hw_init_config(ah);
868 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
869 ath_print(common, ATH_DBG_FATAL,
870 "Couldn't reset chip\n");
874 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
875 ath_print(common, ATH_DBG_FATAL, "Couldn't wakeup chip\n");
879 if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
880 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
881 (AR_SREV_9280(ah) && !ah->is_pciexpress)) {
882 ah->config.serialize_regmode =
885 ah->config.serialize_regmode =
890 ath_print(common, ATH_DBG_RESET, "serialize_regmode is %d\n",
891 ah->config.serialize_regmode);
893 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
894 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
896 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
898 if (!ath9k_hw_macversion_supported(ah->hw_version.macVersion)) {
899 ath_print(common, ATH_DBG_FATAL,
900 "Mac Chip Rev 0x%02x.%x is not supported by "
901 "this driver\n", ah->hw_version.macVersion,
902 ah->hw_version.macRev);
906 if (AR_SREV_9100(ah)) {
907 ah->iq_caldata.calData = &iq_cal_multi_sample;
908 ah->supp_cals = IQ_MISMATCH_CAL;
909 ah->is_pciexpress = false;
912 if (AR_SREV_9271(ah))
913 ah->is_pciexpress = false;
915 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
917 ath9k_hw_init_cal_settings(ah);
919 ah->ani_function = ATH9K_ANI_ALL;
920 if (AR_SREV_9280_10_OR_LATER(ah)) {
921 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
922 ah->ath9k_hw_rf_set_freq = &ath9k_hw_ar9280_set_channel;
923 ah->ath9k_hw_spur_mitigate_freq = &ath9k_hw_9280_spur_mitigate;
925 ah->ath9k_hw_rf_set_freq = &ath9k_hw_set_channel;
926 ah->ath9k_hw_spur_mitigate_freq = &ath9k_hw_spur_mitigate;
929 ath9k_hw_init_mode_regs(ah);
931 if (ah->is_pciexpress)
932 ath9k_hw_configpcipowersave(ah, 0, 0);
934 ath9k_hw_disablepcie(ah);
936 /* Support for Japan ch.14 (2484) spread */
937 if (AR_SREV_9287_11_OR_LATER(ah)) {
938 INIT_INI_ARRAY(&ah->iniCckfirNormal,
939 ar9287Common_normal_cck_fir_coeff_92871_1,
940 ARRAY_SIZE(ar9287Common_normal_cck_fir_coeff_92871_1), 2);
941 INIT_INI_ARRAY(&ah->iniCckfirJapan2484,
942 ar9287Common_japan_2484_cck_fir_coeff_92871_1,
943 ARRAY_SIZE(ar9287Common_japan_2484_cck_fir_coeff_92871_1), 2);
946 r = ath9k_hw_post_init(ah);
950 ath9k_hw_init_mode_gain_regs(ah);
951 r = ath9k_hw_fill_cap_info(ah);
955 ath9k_hw_init_eeprom_fix(ah);
957 r = ath9k_hw_init_macaddr(ah);
959 ath_print(common, ATH_DBG_FATAL,
960 "Failed to initialize MAC address\n");
964 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
965 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
967 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
969 ath9k_init_nfcal_hist_buffer(ah);
971 common->state = ATH_HW_INITIALIZED;
976 static void ath9k_hw_init_bb(struct ath_hw *ah,
977 struct ath9k_channel *chan)
981 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
983 synthDelay = (4 * synthDelay) / 22;
987 REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
989 udelay(synthDelay + BASE_ACTIVATE_DELAY);
992 static void ath9k_hw_init_qos(struct ath_hw *ah)
994 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
995 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
997 REG_WRITE(ah, AR_QOS_NO_ACK,
998 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
999 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
1000 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
1002 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
1003 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
1004 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
1005 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
1006 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
1009 static void ath9k_hw_init_pll(struct ath_hw *ah,
1010 struct ath9k_channel *chan)
1014 if (AR_SREV_9100(ah)) {
1015 if (chan && IS_CHAN_5GHZ(chan))
1020 if (AR_SREV_9280_10_OR_LATER(ah)) {
1021 pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
1023 if (chan && IS_CHAN_HALF_RATE(chan))
1024 pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
1025 else if (chan && IS_CHAN_QUARTER_RATE(chan))
1026 pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
1028 if (chan && IS_CHAN_5GHZ(chan)) {
1029 pll |= SM(0x28, AR_RTC_9160_PLL_DIV);
1032 if (AR_SREV_9280_20(ah)) {
1033 if (((chan->channel % 20) == 0)
1034 || ((chan->channel % 10) == 0))
1040 pll |= SM(0x2c, AR_RTC_9160_PLL_DIV);
1043 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1045 pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
1047 if (chan && IS_CHAN_HALF_RATE(chan))
1048 pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
1049 else if (chan && IS_CHAN_QUARTER_RATE(chan))
1050 pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
1052 if (chan && IS_CHAN_5GHZ(chan))
1053 pll |= SM(0x50, AR_RTC_9160_PLL_DIV);
1055 pll |= SM(0x58, AR_RTC_9160_PLL_DIV);
1057 pll = AR_RTC_PLL_REFDIV_5 | AR_RTC_PLL_DIV2;
1059 if (chan && IS_CHAN_HALF_RATE(chan))
1060 pll |= SM(0x1, AR_RTC_PLL_CLKSEL);
1061 else if (chan && IS_CHAN_QUARTER_RATE(chan))
1062 pll |= SM(0x2, AR_RTC_PLL_CLKSEL);
1064 if (chan && IS_CHAN_5GHZ(chan))
1065 pll |= SM(0xa, AR_RTC_PLL_DIV);
1067 pll |= SM(0xb, AR_RTC_PLL_DIV);
1070 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
1072 /* Switch the core clock for ar9271 to 117Mhz */
1073 if (AR_SREV_9271(ah)) {
1075 REG_WRITE(ah, 0x50040, 0x304);
1078 udelay(RTC_PLL_SETTLE_DELAY);
1080 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
1083 static void ath9k_hw_init_chain_masks(struct ath_hw *ah)
1085 int rx_chainmask, tx_chainmask;
1087 rx_chainmask = ah->rxchainmask;
1088 tx_chainmask = ah->txchainmask;
1090 switch (rx_chainmask) {
1092 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
1093 AR_PHY_SWAP_ALT_CHAIN);
1095 if (ah->hw_version.macVersion == AR_SREV_REVISION_5416_10) {
1096 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, 0x7);
1097 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, 0x7);
1103 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
1104 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
1110 REG_WRITE(ah, AR_SELFGEN_MASK, tx_chainmask);
1111 if (tx_chainmask == 0x5) {
1112 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
1113 AR_PHY_SWAP_ALT_CHAIN);
1115 if (AR_SREV_9100(ah))
1116 REG_WRITE(ah, AR_PHY_ANALOG_SWAP,
1117 REG_READ(ah, AR_PHY_ANALOG_SWAP) | 0x00000001);
1120 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
1121 enum nl80211_iftype opmode)
1123 ah->mask_reg = AR_IMR_TXERR |
1129 if (ah->config.rx_intr_mitigation)
1130 ah->mask_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
1132 ah->mask_reg |= AR_IMR_RXOK;
1134 ah->mask_reg |= AR_IMR_TXOK;
1136 if (opmode == NL80211_IFTYPE_AP)
1137 ah->mask_reg |= AR_IMR_MIB;
1139 REG_WRITE(ah, AR_IMR, ah->mask_reg);
1140 ah->imrs2_reg |= AR_IMR_S2_GTT;
1141 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
1143 if (!AR_SREV_9100(ah)) {
1144 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
1145 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
1146 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
1150 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
1152 u32 val = ath9k_hw_mac_to_clks(ah, us);
1153 val = min(val, (u32) 0xFFFF);
1154 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
1157 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
1159 u32 val = ath9k_hw_mac_to_clks(ah, us);
1160 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
1161 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
1164 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
1166 u32 val = ath9k_hw_mac_to_clks(ah, us);
1167 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
1168 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
1171 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
1174 ath_print(ath9k_hw_common(ah), ATH_DBG_XMIT,
1175 "bad global tx timeout %u\n", tu);
1176 ah->globaltxtimeout = (u32) -1;
1179 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
1180 ah->globaltxtimeout = tu;
1185 void ath9k_hw_init_global_settings(struct ath_hw *ah)
1187 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
1192 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
1195 if (ah->misc_mode != 0)
1196 REG_WRITE(ah, AR_PCU_MISC,
1197 REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
1199 if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ)
1204 /* As defined by IEEE 802.11-2007 17.3.8.6 */
1205 slottime = ah->slottime + 3 * ah->coverage_class;
1206 acktimeout = slottime + sifstime;
1209 * Workaround for early ACK timeouts, add an offset to match the
1210 * initval's 64us ack timeout value.
1211 * This was initially only meant to work around an issue with delayed
1212 * BA frames in some implementations, but it has been found to fix ACK
1213 * timeout issues in other cases as well.
1215 if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
1216 acktimeout += 64 - sifstime - ah->slottime;
1218 ath9k_hw_setslottime(ah, slottime);
1219 ath9k_hw_set_ack_timeout(ah, acktimeout);
1220 ath9k_hw_set_cts_timeout(ah, acktimeout);
1221 if (ah->globaltxtimeout != (u32) -1)
1222 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
1224 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
1226 void ath9k_hw_deinit(struct ath_hw *ah)
1228 struct ath_common *common = ath9k_hw_common(ah);
1230 if (common->state <= ATH_HW_INITIALIZED)
1233 if (!AR_SREV_9100(ah))
1234 ath9k_hw_ani_disable(ah);
1236 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
1239 if (!AR_SREV_9280_10_OR_LATER(ah))
1240 ath9k_hw_rf_free_ext_banks(ah);
1244 EXPORT_SYMBOL(ath9k_hw_deinit);
1250 static void ath9k_hw_override_ini(struct ath_hw *ah,
1251 struct ath9k_channel *chan)
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.
1260 REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
1262 if (AR_SREV_9280_10_OR_LATER(ah)) {
1263 val = REG_READ(ah, AR_PCU_MISC_MODE2);
1265 if (!AR_SREV_9271(ah))
1266 val &= ~AR_PCU_MISC_MODE2_HWWAR1;
1268 if (AR_SREV_9287_10_OR_LATER(ah))
1269 val = val & (~AR_PCU_MISC_MODE2_HWWAR2);
1271 REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
1274 if (!AR_SREV_5416_20_OR_LATER(ah) ||
1275 AR_SREV_9280_10_OR_LATER(ah))
1278 * Disable BB clock gating
1279 * Necessary to avoid issues on AR5416 2.0
1281 REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
1284 * Disable RIFS search on some chips to avoid baseband
1287 if (AR_SREV_9100(ah) || AR_SREV_9160(ah)) {
1288 val = REG_READ(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS);
1289 val &= ~AR_PHY_RIFS_INIT_DELAY;
1290 REG_WRITE(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS, val);
1294 static u32 ath9k_hw_def_ini_fixup(struct ath_hw *ah,
1295 struct ar5416_eeprom_def *pEepData,
1298 struct base_eep_header *pBase = &(pEepData->baseEepHeader);
1299 struct ath_common *common = ath9k_hw_common(ah);
1301 switch (ah->hw_version.devid) {
1302 case AR9280_DEVID_PCI:
1303 if (reg == 0x7894) {
1304 ath_print(common, ATH_DBG_EEPROM,
1305 "ini VAL: %x EEPROM: %x\n", value,
1306 (pBase->version & 0xff));
1308 if ((pBase->version & 0xff) > 0x0a) {
1309 ath_print(common, ATH_DBG_EEPROM,
1312 value &= ~AR_AN_TOP2_PWDCLKIND;
1313 value |= AR_AN_TOP2_PWDCLKIND &
1314 (pBase->pwdclkind << AR_AN_TOP2_PWDCLKIND_S);
1316 ath_print(common, ATH_DBG_EEPROM,
1317 "PWDCLKIND Earlier Rev\n");
1320 ath_print(common, ATH_DBG_EEPROM,
1321 "final ini VAL: %x\n", value);
1329 static u32 ath9k_hw_ini_fixup(struct ath_hw *ah,
1330 struct ar5416_eeprom_def *pEepData,
1333 if (ah->eep_map == EEP_MAP_4KBITS)
1336 return ath9k_hw_def_ini_fixup(ah, pEepData, reg, value);
1339 static void ath9k_olc_init(struct ath_hw *ah)
1343 if (OLC_FOR_AR9287_10_LATER) {
1344 REG_SET_BIT(ah, AR_PHY_TX_PWRCTRL9,
1345 AR_PHY_TX_PWRCTRL9_RES_DC_REMOVAL);
1346 ath9k_hw_analog_shift_rmw(ah, AR9287_AN_TXPC0,
1347 AR9287_AN_TXPC0_TXPCMODE,
1348 AR9287_AN_TXPC0_TXPCMODE_S,
1349 AR9287_AN_TXPC0_TXPCMODE_TEMPSENSE);
1352 for (i = 0; i < AR9280_TX_GAIN_TABLE_SIZE; i++)
1353 ah->originalGain[i] =
1354 MS(REG_READ(ah, AR_PHY_TX_GAIN_TBL1 + i * 4),
1360 static u32 ath9k_regd_get_ctl(struct ath_regulatory *reg,
1361 struct ath9k_channel *chan)
1363 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
1365 if (IS_CHAN_B(chan))
1367 else if (IS_CHAN_G(chan))
1375 static int ath9k_hw_process_ini(struct ath_hw *ah,
1376 struct ath9k_channel *chan)
1378 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1379 int i, regWrites = 0;
1380 struct ieee80211_channel *channel = chan->chan;
1381 u32 modesIndex, freqIndex;
1383 switch (chan->chanmode) {
1385 case CHANNEL_A_HT20:
1389 case CHANNEL_A_HT40PLUS:
1390 case CHANNEL_A_HT40MINUS:
1395 case CHANNEL_G_HT20:
1400 case CHANNEL_G_HT40PLUS:
1401 case CHANNEL_G_HT40MINUS:
1410 /* Set correct baseband to analog shift setting to access analog chips */
1411 REG_WRITE(ah, AR_PHY(0), 0x00000007);
1413 /* Write ADDAC shifts */
1414 REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_EXTERNAL_RADIO);
1415 ah->eep_ops->set_addac(ah, chan);
1417 if (AR_SREV_5416_22_OR_LATER(ah)) {
1418 REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
1420 struct ar5416IniArray temp;
1422 sizeof(u32) * ah->iniAddac.ia_rows *
1423 ah->iniAddac.ia_columns;
1425 /* For AR5416 2.0/2.1 */
1426 memcpy(ah->addac5416_21,
1427 ah->iniAddac.ia_array, addacSize);
1429 /* override CLKDRV value at [row, column] = [31, 1] */
1430 (ah->addac5416_21)[31 * ah->iniAddac.ia_columns + 1] = 0;
1432 temp.ia_array = ah->addac5416_21;
1433 temp.ia_columns = ah->iniAddac.ia_columns;
1434 temp.ia_rows = ah->iniAddac.ia_rows;
1435 REG_WRITE_ARRAY(&temp, 1, regWrites);
1438 REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC);
1440 for (i = 0; i < ah->iniModes.ia_rows; i++) {
1441 u32 reg = INI_RA(&ah->iniModes, i, 0);
1442 u32 val = INI_RA(&ah->iniModes, i, modesIndex);
1444 REG_WRITE(ah, reg, val);
1446 if (reg >= 0x7800 && reg < 0x78a0
1447 && ah->config.analog_shiftreg) {
1451 DO_DELAY(regWrites);
1454 if (AR_SREV_9280(ah) || AR_SREV_9287_10_OR_LATER(ah))
1455 REG_WRITE_ARRAY(&ah->iniModesRxGain, modesIndex, regWrites);
1457 if (AR_SREV_9280(ah) || AR_SREV_9285_12_OR_LATER(ah) ||
1458 AR_SREV_9287_10_OR_LATER(ah))
1459 REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
1461 if (AR_SREV_9271_10(ah))
1462 REG_WRITE_ARRAY(&ah->iniModes_9271_1_0_only,
1463 modesIndex, regWrites);
1465 /* Write common array parameters */
1466 for (i = 0; i < ah->iniCommon.ia_rows; i++) {
1467 u32 reg = INI_RA(&ah->iniCommon, i, 0);
1468 u32 val = INI_RA(&ah->iniCommon, i, 1);
1470 REG_WRITE(ah, reg, val);
1472 if (reg >= 0x7800 && reg < 0x78a0
1473 && ah->config.analog_shiftreg) {
1477 DO_DELAY(regWrites);
1480 if (AR_SREV_9271(ah)) {
1481 if (ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE) == 1)
1482 REG_WRITE_ARRAY(&ah->iniModes_high_power_tx_gain_9271,
1483 modesIndex, regWrites);
1485 REG_WRITE_ARRAY(&ah->iniModes_normal_power_tx_gain_9271,
1486 modesIndex, regWrites);
1489 ath9k_hw_write_regs(ah, freqIndex, regWrites);
1491 if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan)) {
1492 REG_WRITE_ARRAY(&ah->iniModesAdditional, modesIndex,
1496 ath9k_hw_override_ini(ah, chan);
1497 ath9k_hw_set_regs(ah, chan);
1498 ath9k_hw_init_chain_masks(ah);
1500 if (OLC_FOR_AR9280_20_LATER)
1504 ah->eep_ops->set_txpower(ah, chan,
1505 ath9k_regd_get_ctl(regulatory, chan),
1506 channel->max_antenna_gain * 2,
1507 channel->max_power * 2,
1508 min((u32) MAX_RATE_POWER,
1509 (u32) regulatory->power_limit));
1511 /* Write analog registers */
1512 if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
1513 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1514 "ar5416SetRfRegs failed\n");
1521 /****************************************/
1522 /* Reset and Channel Switching Routines */
1523 /****************************************/
1525 static void ath9k_hw_set_rfmode(struct ath_hw *ah, struct ath9k_channel *chan)
1532 rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
1533 ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
1535 if (!AR_SREV_9280_10_OR_LATER(ah))
1536 rfMode |= (IS_CHAN_5GHZ(chan)) ?
1537 AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ;
1539 if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan))
1540 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
1542 REG_WRITE(ah, AR_PHY_MODE, rfMode);
1545 static void ath9k_hw_mark_phy_inactive(struct ath_hw *ah)
1547 REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
1550 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
1555 * set AHB_MODE not to do cacheline prefetches
1557 regval = REG_READ(ah, AR_AHB_MODE);
1558 REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
1561 * let mac dma reads be in 128 byte chunks
1563 regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
1564 REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
1567 * Restore TX Trigger Level to its pre-reset value.
1568 * The initial value depends on whether aggregation is enabled, and is
1569 * adjusted whenever underruns are detected.
1571 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
1574 * let mac dma writes be in 128 byte chunks
1576 regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
1577 REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
1580 * Setup receive FIFO threshold to hold off TX activities
1582 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
1585 * reduce the number of usable entries in PCU TXBUF to avoid
1586 * wrap around issues.
1588 if (AR_SREV_9285(ah)) {
1589 /* For AR9285 the number of Fifos are reduced to half.
1590 * So set the usable tx buf size also to half to
1591 * avoid data/delimiter underruns
1593 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1594 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
1595 } else if (!AR_SREV_9271(ah)) {
1596 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1597 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
1601 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
1605 val = REG_READ(ah, AR_STA_ID1);
1606 val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
1608 case NL80211_IFTYPE_AP:
1609 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
1610 | AR_STA_ID1_KSRCH_MODE);
1611 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1613 case NL80211_IFTYPE_ADHOC:
1614 case NL80211_IFTYPE_MESH_POINT:
1615 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
1616 | AR_STA_ID1_KSRCH_MODE);
1617 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1619 case NL80211_IFTYPE_STATION:
1620 case NL80211_IFTYPE_MONITOR:
1621 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
1626 static inline void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah,
1631 u32 coef_exp, coef_man;
1633 for (coef_exp = 31; coef_exp > 0; coef_exp--)
1634 if ((coef_scaled >> coef_exp) & 0x1)
1637 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1639 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1641 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1642 *coef_exponent = coef_exp - 16;
1645 static void ath9k_hw_set_delta_slope(struct ath_hw *ah,
1646 struct ath9k_channel *chan)
1648 u32 coef_scaled, ds_coef_exp, ds_coef_man;
1649 u32 clockMhzScaled = 0x64000000;
1650 struct chan_centers centers;
1652 if (IS_CHAN_HALF_RATE(chan))
1653 clockMhzScaled = clockMhzScaled >> 1;
1654 else if (IS_CHAN_QUARTER_RATE(chan))
1655 clockMhzScaled = clockMhzScaled >> 2;
1657 ath9k_hw_get_channel_centers(ah, chan, ¢ers);
1658 coef_scaled = clockMhzScaled / centers.synth_center;
1660 ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
1663 REG_RMW_FIELD(ah, AR_PHY_TIMING3,
1664 AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
1665 REG_RMW_FIELD(ah, AR_PHY_TIMING3,
1666 AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
1668 coef_scaled = (9 * coef_scaled) / 10;
1670 ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
1673 REG_RMW_FIELD(ah, AR_PHY_HALFGI,
1674 AR_PHY_HALFGI_DSC_MAN, ds_coef_man);
1675 REG_RMW_FIELD(ah, AR_PHY_HALFGI,
1676 AR_PHY_HALFGI_DSC_EXP, ds_coef_exp);
1679 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1684 if (AR_SREV_9100(ah)) {
1685 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
1686 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
1687 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
1688 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
1689 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1692 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1693 AR_RTC_FORCE_WAKE_ON_INT);
1695 if (AR_SREV_9100(ah)) {
1696 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1697 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1699 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1701 (AR_INTR_SYNC_LOCAL_TIMEOUT |
1702 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1703 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1704 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1706 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1709 rst_flags = AR_RTC_RC_MAC_WARM;
1710 if (type == ATH9K_RESET_COLD)
1711 rst_flags |= AR_RTC_RC_MAC_COLD;
1714 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1717 REG_WRITE(ah, AR_RTC_RC, 0);
1718 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1719 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1720 "RTC stuck in MAC reset\n");
1724 if (!AR_SREV_9100(ah))
1725 REG_WRITE(ah, AR_RC, 0);
1727 if (AR_SREV_9100(ah))
1733 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1735 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1736 AR_RTC_FORCE_WAKE_ON_INT);
1738 if (!AR_SREV_9100(ah))
1739 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1741 REG_WRITE(ah, AR_RTC_RESET, 0);
1744 if (!AR_SREV_9100(ah))
1745 REG_WRITE(ah, AR_RC, 0);
1747 REG_WRITE(ah, AR_RTC_RESET, 1);
1749 if (!ath9k_hw_wait(ah,
1754 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1755 "RTC not waking up\n");
1759 ath9k_hw_read_revisions(ah);
1761 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1764 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1766 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1767 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1770 case ATH9K_RESET_POWER_ON:
1771 return ath9k_hw_set_reset_power_on(ah);
1772 case ATH9K_RESET_WARM:
1773 case ATH9K_RESET_COLD:
1774 return ath9k_hw_set_reset(ah, type);
1780 static void ath9k_hw_set_regs(struct ath_hw *ah, struct ath9k_channel *chan)
1783 u32 enableDacFifo = 0;
1785 if (AR_SREV_9285_10_OR_LATER(ah))
1786 enableDacFifo = (REG_READ(ah, AR_PHY_TURBO) &
1787 AR_PHY_FC_ENABLE_DAC_FIFO);
1789 phymode = AR_PHY_FC_HT_EN | AR_PHY_FC_SHORT_GI_40
1790 | AR_PHY_FC_SINGLE_HT_LTF1 | AR_PHY_FC_WALSH | enableDacFifo;
1792 if (IS_CHAN_HT40(chan)) {
1793 phymode |= AR_PHY_FC_DYN2040_EN;
1795 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
1796 (chan->chanmode == CHANNEL_G_HT40PLUS))
1797 phymode |= AR_PHY_FC_DYN2040_PRI_CH;
1800 REG_WRITE(ah, AR_PHY_TURBO, phymode);
1802 ath9k_hw_set11nmac2040(ah);
1804 REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
1805 REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
1808 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1809 struct ath9k_channel *chan)
1811 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1812 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1814 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1817 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1820 ah->chip_fullsleep = false;
1821 ath9k_hw_init_pll(ah, chan);
1822 ath9k_hw_set_rfmode(ah, chan);
1827 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1828 struct ath9k_channel *chan)
1830 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1831 struct ath_common *common = ath9k_hw_common(ah);
1832 struct ieee80211_channel *channel = chan->chan;
1833 u32 synthDelay, qnum;
1836 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1837 if (ath9k_hw_numtxpending(ah, qnum)) {
1838 ath_print(common, ATH_DBG_QUEUE,
1839 "Transmit frames pending on "
1840 "queue %d\n", qnum);
1845 REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
1846 if (!ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
1847 AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT)) {
1848 ath_print(common, ATH_DBG_FATAL,
1849 "Could not kill baseband RX\n");
1853 ath9k_hw_set_regs(ah, chan);
1855 r = ah->ath9k_hw_rf_set_freq(ah, chan);
1857 ath_print(common, ATH_DBG_FATAL,
1858 "Failed to set channel\n");
1862 ah->eep_ops->set_txpower(ah, chan,
1863 ath9k_regd_get_ctl(regulatory, chan),
1864 channel->max_antenna_gain * 2,
1865 channel->max_power * 2,
1866 min((u32) MAX_RATE_POWER,
1867 (u32) regulatory->power_limit));
1869 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
1870 if (IS_CHAN_B(chan))
1871 synthDelay = (4 * synthDelay) / 22;
1875 udelay(synthDelay + BASE_ACTIVATE_DELAY);
1877 REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
1879 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1880 ath9k_hw_set_delta_slope(ah, chan);
1882 ah->ath9k_hw_spur_mitigate_freq(ah, chan);
1884 if (!chan->oneTimeCalsDone)
1885 chan->oneTimeCalsDone = true;
1890 static void ath9k_enable_rfkill(struct ath_hw *ah)
1892 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
1893 AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
1895 REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
1896 AR_GPIO_INPUT_MUX2_RFSILENT);
1898 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
1899 REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
1902 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1903 bool bChannelChange)
1905 struct ath_common *common = ath9k_hw_common(ah);
1907 struct ath9k_channel *curchan = ah->curchan;
1911 int i, rx_chainmask, r;
1913 ah->txchainmask = common->tx_chainmask;
1914 ah->rxchainmask = common->rx_chainmask;
1916 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1919 if (curchan && !ah->chip_fullsleep)
1920 ath9k_hw_getnf(ah, curchan);
1922 if (bChannelChange &&
1923 (ah->chip_fullsleep != true) &&
1924 (ah->curchan != NULL) &&
1925 (chan->channel != ah->curchan->channel) &&
1926 ((chan->channelFlags & CHANNEL_ALL) ==
1927 (ah->curchan->channelFlags & CHANNEL_ALL)) &&
1928 !(AR_SREV_9280(ah) || IS_CHAN_A_5MHZ_SPACED(chan) ||
1929 IS_CHAN_A_5MHZ_SPACED(ah->curchan))) {
1931 if (ath9k_hw_channel_change(ah, chan)) {
1932 ath9k_hw_loadnf(ah, ah->curchan);
1933 ath9k_hw_start_nfcal(ah);
1938 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1939 if (saveDefAntenna == 0)
1942 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1944 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1945 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1946 tsf = ath9k_hw_gettsf64(ah);
1948 saveLedState = REG_READ(ah, AR_CFG_LED) &
1949 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1950 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1952 ath9k_hw_mark_phy_inactive(ah);
1954 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1956 AR9271_RESET_POWER_DOWN_CONTROL,
1957 AR9271_RADIO_RF_RST);
1961 if (!ath9k_hw_chip_reset(ah, chan)) {
1962 ath_print(common, ATH_DBG_FATAL, "Chip reset failed\n");
1966 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1967 ah->htc_reset_init = false;
1969 AR9271_RESET_POWER_DOWN_CONTROL,
1970 AR9271_GATE_MAC_CTL);
1975 if (tsf && AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1976 ath9k_hw_settsf64(ah, tsf);
1978 if (AR_SREV_9280_10_OR_LATER(ah))
1979 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1981 if (AR_SREV_9287_12_OR_LATER(ah)) {
1982 /* Enable ASYNC FIFO */
1983 REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
1984 AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
1985 REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
1986 REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
1987 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
1988 REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
1989 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
1991 r = ath9k_hw_process_ini(ah, chan);
1995 /* Setup MFP options for CCMP */
1996 if (AR_SREV_9280_20_OR_LATER(ah)) {
1997 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1998 * frames when constructing CCMP AAD. */
1999 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
2001 ah->sw_mgmt_crypto = false;
2002 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
2003 /* Disable hardware crypto for management frames */
2004 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
2005 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
2006 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
2007 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
2008 ah->sw_mgmt_crypto = true;
2010 ah->sw_mgmt_crypto = true;
2012 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
2013 ath9k_hw_set_delta_slope(ah, chan);
2015 ah->ath9k_hw_spur_mitigate_freq(ah, chan);
2016 ah->eep_ops->set_board_values(ah, chan);
2018 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
2019 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
2021 | AR_STA_ID1_RTS_USE_DEF
2023 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
2024 | ah->sta_id1_defaults);
2025 ath9k_hw_set_operating_mode(ah, ah->opmode);
2027 ath_hw_setbssidmask(common);
2029 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
2031 ath9k_hw_write_associd(ah);
2033 REG_WRITE(ah, AR_ISR, ~0);
2035 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
2037 r = ah->ath9k_hw_rf_set_freq(ah, chan);
2041 for (i = 0; i < AR_NUM_DCU; i++)
2042 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
2045 for (i = 0; i < ah->caps.total_queues; i++)
2046 ath9k_hw_resettxqueue(ah, i);
2048 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
2049 ath9k_hw_init_qos(ah);
2051 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
2052 ath9k_enable_rfkill(ah);
2054 ath9k_hw_init_global_settings(ah);
2056 if (AR_SREV_9287_12_OR_LATER(ah)) {
2057 REG_WRITE(ah, AR_D_GBL_IFS_SIFS,
2058 AR_D_GBL_IFS_SIFS_ASYNC_FIFO_DUR);
2059 REG_WRITE(ah, AR_D_GBL_IFS_SLOT,
2060 AR_D_GBL_IFS_SLOT_ASYNC_FIFO_DUR);
2061 REG_WRITE(ah, AR_D_GBL_IFS_EIFS,
2062 AR_D_GBL_IFS_EIFS_ASYNC_FIFO_DUR);
2064 REG_WRITE(ah, AR_TIME_OUT, AR_TIME_OUT_ACK_CTS_ASYNC_FIFO_DUR);
2065 REG_WRITE(ah, AR_USEC, AR_USEC_ASYNC_FIFO_DUR);
2067 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
2068 AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
2069 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
2070 AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
2072 if (AR_SREV_9287_12_OR_LATER(ah)) {
2073 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
2074 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
2077 REG_WRITE(ah, AR_STA_ID1,
2078 REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
2080 ath9k_hw_set_dma(ah);
2082 REG_WRITE(ah, AR_OBS, 8);
2084 if (ah->config.rx_intr_mitigation) {
2085 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
2086 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
2089 ath9k_hw_init_bb(ah, chan);
2091 if (!ath9k_hw_init_cal(ah, chan))
2094 rx_chainmask = ah->rxchainmask;
2095 if ((rx_chainmask == 0x5) || (rx_chainmask == 0x3)) {
2096 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
2097 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
2100 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
2103 * For big endian systems turn on swapping for descriptors
2105 if (AR_SREV_9100(ah)) {
2107 mask = REG_READ(ah, AR_CFG);
2108 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
2109 ath_print(common, ATH_DBG_RESET,
2110 "CFG Byte Swap Set 0x%x\n", mask);
2113 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
2114 REG_WRITE(ah, AR_CFG, mask);
2115 ath_print(common, ATH_DBG_RESET,
2116 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
2119 /* Configure AR9271 target WLAN */
2120 if (AR_SREV_9271(ah))
2121 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
2124 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
2128 if (ah->btcoex_hw.enabled)
2129 ath9k_hw_btcoex_enable(ah);
2133 EXPORT_SYMBOL(ath9k_hw_reset);
2135 /************************/
2136 /* Key Cache Management */
2137 /************************/
2139 bool ath9k_hw_keyreset(struct ath_hw *ah, u16 entry)
2143 if (entry >= ah->caps.keycache_size) {
2144 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2145 "keychache entry %u out of range\n", entry);
2149 keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
2151 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
2152 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
2153 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
2154 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
2155 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
2156 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
2157 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
2158 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
2160 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
2161 u16 micentry = entry + 64;
2163 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
2164 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
2165 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
2166 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
2172 EXPORT_SYMBOL(ath9k_hw_keyreset);
2174 bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
2178 if (entry >= ah->caps.keycache_size) {
2179 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2180 "keychache entry %u out of range\n", entry);
2185 macHi = (mac[5] << 8) | mac[4];
2186 macLo = (mac[3] << 24) |
2191 macLo |= (macHi & 1) << 31;
2196 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
2197 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | AR_KEYTABLE_VALID);
2201 EXPORT_SYMBOL(ath9k_hw_keysetmac);
2203 bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
2204 const struct ath9k_keyval *k,
2207 const struct ath9k_hw_capabilities *pCap = &ah->caps;
2208 struct ath_common *common = ath9k_hw_common(ah);
2209 u32 key0, key1, key2, key3, key4;
2212 if (entry >= pCap->keycache_size) {
2213 ath_print(common, ATH_DBG_FATAL,
2214 "keycache entry %u out of range\n", entry);
2218 switch (k->kv_type) {
2219 case ATH9K_CIPHER_AES_OCB:
2220 keyType = AR_KEYTABLE_TYPE_AES;
2222 case ATH9K_CIPHER_AES_CCM:
2223 if (!(pCap->hw_caps & ATH9K_HW_CAP_CIPHER_AESCCM)) {
2224 ath_print(common, ATH_DBG_ANY,
2225 "AES-CCM not supported by mac rev 0x%x\n",
2226 ah->hw_version.macRev);
2229 keyType = AR_KEYTABLE_TYPE_CCM;
2231 case ATH9K_CIPHER_TKIP:
2232 keyType = AR_KEYTABLE_TYPE_TKIP;
2233 if (ATH9K_IS_MIC_ENABLED(ah)
2234 && entry + 64 >= pCap->keycache_size) {
2235 ath_print(common, ATH_DBG_ANY,
2236 "entry %u inappropriate for TKIP\n", entry);
2240 case ATH9K_CIPHER_WEP:
2241 if (k->kv_len < WLAN_KEY_LEN_WEP40) {
2242 ath_print(common, ATH_DBG_ANY,
2243 "WEP key length %u too small\n", k->kv_len);
2246 if (k->kv_len <= WLAN_KEY_LEN_WEP40)
2247 keyType = AR_KEYTABLE_TYPE_40;
2248 else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
2249 keyType = AR_KEYTABLE_TYPE_104;
2251 keyType = AR_KEYTABLE_TYPE_128;
2253 case ATH9K_CIPHER_CLR:
2254 keyType = AR_KEYTABLE_TYPE_CLR;
2257 ath_print(common, ATH_DBG_FATAL,
2258 "cipher %u not supported\n", k->kv_type);
2262 key0 = get_unaligned_le32(k->kv_val + 0);
2263 key1 = get_unaligned_le16(k->kv_val + 4);
2264 key2 = get_unaligned_le32(k->kv_val + 6);
2265 key3 = get_unaligned_le16(k->kv_val + 10);
2266 key4 = get_unaligned_le32(k->kv_val + 12);
2267 if (k->kv_len <= WLAN_KEY_LEN_WEP104)
2271 * Note: Key cache registers access special memory area that requires
2272 * two 32-bit writes to actually update the values in the internal
2273 * memory. Consequently, the exact order and pairs used here must be
2277 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
2278 u16 micentry = entry + 64;
2281 * Write inverted key[47:0] first to avoid Michael MIC errors
2282 * on frames that could be sent or received at the same time.
2283 * The correct key will be written in the end once everything
2286 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), ~key0);
2287 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), ~key1);
2289 /* Write key[95:48] */
2290 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
2291 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
2293 /* Write key[127:96] and key type */
2294 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
2295 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
2297 /* Write MAC address for the entry */
2298 (void) ath9k_hw_keysetmac(ah, entry, mac);
2300 if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) {
2302 * TKIP uses two key cache entries:
2303 * Michael MIC TX/RX keys in the same key cache entry
2304 * (idx = main index + 64):
2305 * key0 [31:0] = RX key [31:0]
2306 * key1 [15:0] = TX key [31:16]
2307 * key1 [31:16] = reserved
2308 * key2 [31:0] = RX key [63:32]
2309 * key3 [15:0] = TX key [15:0]
2310 * key3 [31:16] = reserved
2311 * key4 [31:0] = TX key [63:32]
2313 u32 mic0, mic1, mic2, mic3, mic4;
2315 mic0 = get_unaligned_le32(k->kv_mic + 0);
2316 mic2 = get_unaligned_le32(k->kv_mic + 4);
2317 mic1 = get_unaligned_le16(k->kv_txmic + 2) & 0xffff;
2318 mic3 = get_unaligned_le16(k->kv_txmic + 0) & 0xffff;
2319 mic4 = get_unaligned_le32(k->kv_txmic + 4);
2321 /* Write RX[31:0] and TX[31:16] */
2322 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
2323 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), mic1);
2325 /* Write RX[63:32] and TX[15:0] */
2326 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
2327 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), mic3);
2329 /* Write TX[63:32] and keyType(reserved) */
2330 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), mic4);
2331 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
2332 AR_KEYTABLE_TYPE_CLR);
2336 * TKIP uses four key cache entries (two for group
2338 * Michael MIC TX/RX keys are in different key cache
2339 * entries (idx = main index + 64 for TX and
2340 * main index + 32 + 96 for RX):
2341 * key0 [31:0] = TX/RX MIC key [31:0]
2342 * key1 [31:0] = reserved
2343 * key2 [31:0] = TX/RX MIC key [63:32]
2344 * key3 [31:0] = reserved
2345 * key4 [31:0] = reserved
2347 * Upper layer code will call this function separately
2348 * for TX and RX keys when these registers offsets are
2353 mic0 = get_unaligned_le32(k->kv_mic + 0);
2354 mic2 = get_unaligned_le32(k->kv_mic + 4);
2356 /* Write MIC key[31:0] */
2357 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
2358 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
2360 /* Write MIC key[63:32] */
2361 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
2362 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
2364 /* Write TX[63:32] and keyType(reserved) */
2365 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
2366 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
2367 AR_KEYTABLE_TYPE_CLR);
2370 /* MAC address registers are reserved for the MIC entry */
2371 REG_WRITE(ah, AR_KEYTABLE_MAC0(micentry), 0);
2372 REG_WRITE(ah, AR_KEYTABLE_MAC1(micentry), 0);
2375 * Write the correct (un-inverted) key[47:0] last to enable
2376 * TKIP now that all other registers are set with correct
2379 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
2380 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
2382 /* Write key[47:0] */
2383 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
2384 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
2386 /* Write key[95:48] */
2387 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
2388 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
2390 /* Write key[127:96] and key type */
2391 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
2392 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
2394 /* Write MAC address for the entry */
2395 (void) ath9k_hw_keysetmac(ah, entry, mac);
2400 EXPORT_SYMBOL(ath9k_hw_set_keycache_entry);
2402 bool ath9k_hw_keyisvalid(struct ath_hw *ah, u16 entry)
2404 if (entry < ah->caps.keycache_size) {
2405 u32 val = REG_READ(ah, AR_KEYTABLE_MAC1(entry));
2406 if (val & AR_KEYTABLE_VALID)
2411 EXPORT_SYMBOL(ath9k_hw_keyisvalid);
2413 /******************************/
2414 /* Power Management (Chipset) */
2415 /******************************/
2417 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
2419 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2421 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
2422 AR_RTC_FORCE_WAKE_EN);
2423 if (!AR_SREV_9100(ah))
2424 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
2426 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah))
2427 REG_CLR_BIT(ah, (AR_RTC_RESET),
2432 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
2434 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2436 struct ath9k_hw_capabilities *pCap = &ah->caps;
2438 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
2439 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
2440 AR_RTC_FORCE_WAKE_ON_INT);
2442 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
2443 AR_RTC_FORCE_WAKE_EN);
2448 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
2454 if ((REG_READ(ah, AR_RTC_STATUS) &
2455 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
2456 if (ath9k_hw_set_reset_reg(ah,
2457 ATH9K_RESET_POWER_ON) != true) {
2460 ath9k_hw_init_pll(ah, NULL);
2462 if (AR_SREV_9100(ah))
2463 REG_SET_BIT(ah, AR_RTC_RESET,
2466 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2467 AR_RTC_FORCE_WAKE_EN);
2470 for (i = POWER_UP_TIME / 50; i > 0; i--) {
2471 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
2472 if (val == AR_RTC_STATUS_ON)
2475 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2476 AR_RTC_FORCE_WAKE_EN);
2479 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2480 "Failed to wakeup in %uus\n",
2481 POWER_UP_TIME / 20);
2486 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2491 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
2493 struct ath_common *common = ath9k_hw_common(ah);
2494 int status = true, setChip = true;
2495 static const char *modes[] = {
2502 if (ah->power_mode == mode)
2505 ath_print(common, ATH_DBG_RESET, "%s -> %s\n",
2506 modes[ah->power_mode], modes[mode]);
2509 case ATH9K_PM_AWAKE:
2510 status = ath9k_hw_set_power_awake(ah, setChip);
2512 case ATH9K_PM_FULL_SLEEP:
2513 ath9k_set_power_sleep(ah, setChip);
2514 ah->chip_fullsleep = true;
2516 case ATH9K_PM_NETWORK_SLEEP:
2517 ath9k_set_power_network_sleep(ah, setChip);
2520 ath_print(common, ATH_DBG_FATAL,
2521 "Unknown power mode %u\n", mode);
2524 ah->power_mode = mode;
2528 EXPORT_SYMBOL(ath9k_hw_setpower);
2531 * Helper for ASPM support.
2533 * Disable PLL when in L0s as well as receiver clock when in L1.
2534 * This power saving option must be enabled through the SerDes.
2536 * Programming the SerDes must go through the same 288 bit serial shift
2537 * register as the other analog registers. Hence the 9 writes.
2539 void ath9k_hw_configpcipowersave(struct ath_hw *ah, int restore, int power_off)
2544 if (ah->is_pciexpress != true)
2547 /* Do not touch SerDes registers */
2548 if (ah->config.pcie_powersave_enable == 2)
2551 /* Nothing to do on restore for 11N */
2553 if (AR_SREV_9280_20_OR_LATER(ah)) {
2555 * AR9280 2.0 or later chips use SerDes values from the
2556 * initvals.h initialized depending on chipset during
2559 for (i = 0; i < ah->iniPcieSerdes.ia_rows; i++) {
2560 REG_WRITE(ah, INI_RA(&ah->iniPcieSerdes, i, 0),
2561 INI_RA(&ah->iniPcieSerdes, i, 1));
2563 } else if (AR_SREV_9280(ah) &&
2564 (ah->hw_version.macRev == AR_SREV_REVISION_9280_10)) {
2565 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fd00);
2566 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
2568 /* RX shut off when elecidle is asserted */
2569 REG_WRITE(ah, AR_PCIE_SERDES, 0xa8000019);
2570 REG_WRITE(ah, AR_PCIE_SERDES, 0x13160820);
2571 REG_WRITE(ah, AR_PCIE_SERDES, 0xe5980560);
2573 /* Shut off CLKREQ active in L1 */
2574 if (ah->config.pcie_clock_req)
2575 REG_WRITE(ah, AR_PCIE_SERDES, 0x401deffc);
2577 REG_WRITE(ah, AR_PCIE_SERDES, 0x401deffd);
2579 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
2580 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
2581 REG_WRITE(ah, AR_PCIE_SERDES, 0x00043007);
2583 /* Load the new settings */
2584 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
2587 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
2588 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
2590 /* RX shut off when elecidle is asserted */
2591 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000039);
2592 REG_WRITE(ah, AR_PCIE_SERDES, 0x53160824);
2593 REG_WRITE(ah, AR_PCIE_SERDES, 0xe5980579);
2596 * Ignore ah->ah_config.pcie_clock_req setting for
2599 REG_WRITE(ah, AR_PCIE_SERDES, 0x001defff);
2601 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
2602 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
2603 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e3007);
2605 /* Load the new settings */
2606 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
2611 /* set bit 19 to allow forcing of pcie core into L1 state */
2612 REG_SET_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);
2614 /* Several PCIe massages to ensure proper behaviour */
2615 if (ah->config.pcie_waen) {
2616 val = ah->config.pcie_waen;
2618 val &= (~AR_WA_D3_L1_DISABLE);
2620 if (AR_SREV_9285(ah) || AR_SREV_9271(ah) ||
2622 val = AR9285_WA_DEFAULT;
2624 val &= (~AR_WA_D3_L1_DISABLE);
2625 } else if (AR_SREV_9280(ah)) {
2627 * On AR9280 chips bit 22 of 0x4004 needs to be
2628 * set otherwise card may disappear.
2630 val = AR9280_WA_DEFAULT;
2632 val &= (~AR_WA_D3_L1_DISABLE);
2634 val = AR_WA_DEFAULT;
2637 REG_WRITE(ah, AR_WA, val);
2642 * Set PCIe workaround bits
2643 * bit 14 in WA register (disable L1) should only
2644 * be set when device enters D3 and be cleared
2645 * when device comes back to D0.
2647 if (ah->config.pcie_waen) {
2648 if (ah->config.pcie_waen & AR_WA_D3_L1_DISABLE)
2649 REG_SET_BIT(ah, AR_WA, AR_WA_D3_L1_DISABLE);
2651 if (((AR_SREV_9285(ah) || AR_SREV_9271(ah) ||
2652 AR_SREV_9287(ah)) &&
2653 (AR9285_WA_DEFAULT & AR_WA_D3_L1_DISABLE)) ||
2654 (AR_SREV_9280(ah) &&
2655 (AR9280_WA_DEFAULT & AR_WA_D3_L1_DISABLE))) {
2656 REG_SET_BIT(ah, AR_WA, AR_WA_D3_L1_DISABLE);
2661 EXPORT_SYMBOL(ath9k_hw_configpcipowersave);
2663 /**********************/
2664 /* Interrupt Handling */
2665 /**********************/
2667 bool ath9k_hw_intrpend(struct ath_hw *ah)
2671 if (AR_SREV_9100(ah))
2674 host_isr = REG_READ(ah, AR_INTR_ASYNC_CAUSE);
2675 if ((host_isr & AR_INTR_MAC_IRQ) && (host_isr != AR_INTR_SPURIOUS))
2678 host_isr = REG_READ(ah, AR_INTR_SYNC_CAUSE);
2679 if ((host_isr & AR_INTR_SYNC_DEFAULT)
2680 && (host_isr != AR_INTR_SPURIOUS))
2685 EXPORT_SYMBOL(ath9k_hw_intrpend);
2687 bool ath9k_hw_getisr(struct ath_hw *ah, enum ath9k_int *masked)
2691 struct ath9k_hw_capabilities *pCap = &ah->caps;
2693 bool fatal_int = false;
2694 struct ath_common *common = ath9k_hw_common(ah);
2696 if (!AR_SREV_9100(ah)) {
2697 if (REG_READ(ah, AR_INTR_ASYNC_CAUSE) & AR_INTR_MAC_IRQ) {
2698 if ((REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M)
2699 == AR_RTC_STATUS_ON) {
2700 isr = REG_READ(ah, AR_ISR);
2704 sync_cause = REG_READ(ah, AR_INTR_SYNC_CAUSE) &
2705 AR_INTR_SYNC_DEFAULT;
2709 if (!isr && !sync_cause)
2713 isr = REG_READ(ah, AR_ISR);
2717 if (isr & AR_ISR_BCNMISC) {
2719 isr2 = REG_READ(ah, AR_ISR_S2);
2720 if (isr2 & AR_ISR_S2_TIM)
2721 mask2 |= ATH9K_INT_TIM;
2722 if (isr2 & AR_ISR_S2_DTIM)
2723 mask2 |= ATH9K_INT_DTIM;
2724 if (isr2 & AR_ISR_S2_DTIMSYNC)
2725 mask2 |= ATH9K_INT_DTIMSYNC;
2726 if (isr2 & (AR_ISR_S2_CABEND))
2727 mask2 |= ATH9K_INT_CABEND;
2728 if (isr2 & AR_ISR_S2_GTT)
2729 mask2 |= ATH9K_INT_GTT;
2730 if (isr2 & AR_ISR_S2_CST)
2731 mask2 |= ATH9K_INT_CST;
2732 if (isr2 & AR_ISR_S2_TSFOOR)
2733 mask2 |= ATH9K_INT_TSFOOR;
2736 isr = REG_READ(ah, AR_ISR_RAC);
2737 if (isr == 0xffffffff) {
2742 *masked = isr & ATH9K_INT_COMMON;
2744 if (ah->config.rx_intr_mitigation) {
2745 if (isr & (AR_ISR_RXMINTR | AR_ISR_RXINTM))
2746 *masked |= ATH9K_INT_RX;
2749 if (isr & (AR_ISR_RXOK | AR_ISR_RXERR))
2750 *masked |= ATH9K_INT_RX;
2752 (AR_ISR_TXOK | AR_ISR_TXDESC | AR_ISR_TXERR |
2756 *masked |= ATH9K_INT_TX;
2758 s0_s = REG_READ(ah, AR_ISR_S0_S);
2759 ah->intr_txqs |= MS(s0_s, AR_ISR_S0_QCU_TXOK);
2760 ah->intr_txqs |= MS(s0_s, AR_ISR_S0_QCU_TXDESC);
2762 s1_s = REG_READ(ah, AR_ISR_S1_S);
2763 ah->intr_txqs |= MS(s1_s, AR_ISR_S1_QCU_TXERR);
2764 ah->intr_txqs |= MS(s1_s, AR_ISR_S1_QCU_TXEOL);
2767 if (isr & AR_ISR_RXORN) {
2768 ath_print(common, ATH_DBG_INTERRUPT,
2769 "receive FIFO overrun interrupt\n");
2772 if (!AR_SREV_9100(ah)) {
2773 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
2774 u32 isr5 = REG_READ(ah, AR_ISR_S5_S);
2775 if (isr5 & AR_ISR_S5_TIM_TIMER)
2776 *masked |= ATH9K_INT_TIM_TIMER;
2783 if (AR_SREV_9100(ah))
2786 if (isr & AR_ISR_GENTMR) {
2789 s5_s = REG_READ(ah, AR_ISR_S5_S);
2790 if (isr & AR_ISR_GENTMR) {
2791 ah->intr_gen_timer_trigger =
2792 MS(s5_s, AR_ISR_S5_GENTIMER_TRIG);
2794 ah->intr_gen_timer_thresh =
2795 MS(s5_s, AR_ISR_S5_GENTIMER_THRESH);
2797 if (ah->intr_gen_timer_trigger)
2798 *masked |= ATH9K_INT_GENTIMER;
2806 (AR_INTR_SYNC_HOST1_FATAL | AR_INTR_SYNC_HOST1_PERR))
2810 if (sync_cause & AR_INTR_SYNC_HOST1_FATAL) {
2811 ath_print(common, ATH_DBG_ANY,
2812 "received PCI FATAL interrupt\n");
2814 if (sync_cause & AR_INTR_SYNC_HOST1_PERR) {
2815 ath_print(common, ATH_DBG_ANY,
2816 "received PCI PERR interrupt\n");
2818 *masked |= ATH9K_INT_FATAL;
2820 if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT) {
2821 ath_print(common, ATH_DBG_INTERRUPT,
2822 "AR_INTR_SYNC_RADM_CPL_TIMEOUT\n");
2823 REG_WRITE(ah, AR_RC, AR_RC_HOSTIF);
2824 REG_WRITE(ah, AR_RC, 0);
2825 *masked |= ATH9K_INT_FATAL;
2827 if (sync_cause & AR_INTR_SYNC_LOCAL_TIMEOUT) {
2828 ath_print(common, ATH_DBG_INTERRUPT,
2829 "AR_INTR_SYNC_LOCAL_TIMEOUT\n");
2832 REG_WRITE(ah, AR_INTR_SYNC_CAUSE_CLR, sync_cause);
2833 (void) REG_READ(ah, AR_INTR_SYNC_CAUSE_CLR);
2838 EXPORT_SYMBOL(ath9k_hw_getisr);
2840 enum ath9k_int ath9k_hw_set_interrupts(struct ath_hw *ah, enum ath9k_int ints)
2842 u32 omask = ah->mask_reg;
2844 struct ath9k_hw_capabilities *pCap = &ah->caps;
2845 struct ath_common *common = ath9k_hw_common(ah);
2847 ath_print(common, ATH_DBG_INTERRUPT, "0x%x => 0x%x\n", omask, ints);
2849 if (omask & ATH9K_INT_GLOBAL) {
2850 ath_print(common, ATH_DBG_INTERRUPT, "disable IER\n");
2851 REG_WRITE(ah, AR_IER, AR_IER_DISABLE);
2852 (void) REG_READ(ah, AR_IER);
2853 if (!AR_SREV_9100(ah)) {
2854 REG_WRITE(ah, AR_INTR_ASYNC_ENABLE, 0);
2855 (void) REG_READ(ah, AR_INTR_ASYNC_ENABLE);
2857 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
2858 (void) REG_READ(ah, AR_INTR_SYNC_ENABLE);
2862 mask = ints & ATH9K_INT_COMMON;
2865 if (ints & ATH9K_INT_TX) {
2866 if (ah->txok_interrupt_mask)
2867 mask |= AR_IMR_TXOK;
2868 if (ah->txdesc_interrupt_mask)
2869 mask |= AR_IMR_TXDESC;
2870 if (ah->txerr_interrupt_mask)
2871 mask |= AR_IMR_TXERR;
2872 if (ah->txeol_interrupt_mask)
2873 mask |= AR_IMR_TXEOL;
2875 if (ints & ATH9K_INT_RX) {
2876 mask |= AR_IMR_RXERR;
2877 if (ah->config.rx_intr_mitigation)
2878 mask |= AR_IMR_RXMINTR | AR_IMR_RXINTM;
2880 mask |= AR_IMR_RXOK | AR_IMR_RXDESC;
2881 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
2882 mask |= AR_IMR_GENTMR;
2885 if (ints & (ATH9K_INT_BMISC)) {
2886 mask |= AR_IMR_BCNMISC;
2887 if (ints & ATH9K_INT_TIM)
2888 mask2 |= AR_IMR_S2_TIM;
2889 if (ints & ATH9K_INT_DTIM)
2890 mask2 |= AR_IMR_S2_DTIM;
2891 if (ints & ATH9K_INT_DTIMSYNC)
2892 mask2 |= AR_IMR_S2_DTIMSYNC;
2893 if (ints & ATH9K_INT_CABEND)
2894 mask2 |= AR_IMR_S2_CABEND;
2895 if (ints & ATH9K_INT_TSFOOR)
2896 mask2 |= AR_IMR_S2_TSFOOR;
2899 if (ints & (ATH9K_INT_GTT | ATH9K_INT_CST)) {
2900 mask |= AR_IMR_BCNMISC;
2901 if (ints & ATH9K_INT_GTT)
2902 mask2 |= AR_IMR_S2_GTT;
2903 if (ints & ATH9K_INT_CST)
2904 mask2 |= AR_IMR_S2_CST;
2907 ath_print(common, ATH_DBG_INTERRUPT, "new IMR 0x%x\n", mask);
2908 REG_WRITE(ah, AR_IMR, mask);
2909 ah->imrs2_reg &= ~(AR_IMR_S2_TIM | AR_IMR_S2_DTIM | AR_IMR_S2_DTIMSYNC |
2910 AR_IMR_S2_CABEND | AR_IMR_S2_CABTO |
2911 AR_IMR_S2_TSFOOR | AR_IMR_S2_GTT | AR_IMR_S2_CST);
2912 ah->imrs2_reg |= mask2;
2913 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
2914 ah->mask_reg = ints;
2916 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
2917 if (ints & ATH9K_INT_TIM_TIMER)
2918 REG_SET_BIT(ah, AR_IMR_S5, AR_IMR_S5_TIM_TIMER);
2920 REG_CLR_BIT(ah, AR_IMR_S5, AR_IMR_S5_TIM_TIMER);
2923 if (ints & ATH9K_INT_GLOBAL) {
2924 ath_print(common, ATH_DBG_INTERRUPT, "enable IER\n");
2925 REG_WRITE(ah, AR_IER, AR_IER_ENABLE);
2926 if (!AR_SREV_9100(ah)) {
2927 REG_WRITE(ah, AR_INTR_ASYNC_ENABLE,
2929 REG_WRITE(ah, AR_INTR_ASYNC_MASK, AR_INTR_MAC_IRQ);
2932 REG_WRITE(ah, AR_INTR_SYNC_ENABLE,
2933 AR_INTR_SYNC_DEFAULT);
2934 REG_WRITE(ah, AR_INTR_SYNC_MASK,
2935 AR_INTR_SYNC_DEFAULT);
2937 ath_print(common, ATH_DBG_INTERRUPT, "AR_IMR 0x%x IER 0x%x\n",
2938 REG_READ(ah, AR_IMR), REG_READ(ah, AR_IER));
2943 EXPORT_SYMBOL(ath9k_hw_set_interrupts);
2945 /*******************/
2946 /* Beacon Handling */
2947 /*******************/
2949 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
2953 ah->beacon_interval = beacon_period;
2955 switch (ah->opmode) {
2956 case NL80211_IFTYPE_STATION:
2957 case NL80211_IFTYPE_MONITOR:
2958 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
2959 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, 0xffff);
2960 REG_WRITE(ah, AR_NEXT_SWBA, 0x7ffff);
2961 flags |= AR_TBTT_TIMER_EN;
2963 case NL80211_IFTYPE_ADHOC:
2964 case NL80211_IFTYPE_MESH_POINT:
2965 REG_SET_BIT(ah, AR_TXCFG,
2966 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
2967 REG_WRITE(ah, AR_NEXT_NDP_TIMER,
2968 TU_TO_USEC(next_beacon +
2969 (ah->atim_window ? ah->
2971 flags |= AR_NDP_TIMER_EN;
2972 case NL80211_IFTYPE_AP:
2973 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
2974 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT,
2975 TU_TO_USEC(next_beacon -
2977 dma_beacon_response_time));
2978 REG_WRITE(ah, AR_NEXT_SWBA,
2979 TU_TO_USEC(next_beacon -
2981 sw_beacon_response_time));
2983 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
2986 ath_print(ath9k_hw_common(ah), ATH_DBG_BEACON,
2987 "%s: unsupported opmode: %d\n",
2988 __func__, ah->opmode);
2993 REG_WRITE(ah, AR_BEACON_PERIOD, TU_TO_USEC(beacon_period));
2994 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, TU_TO_USEC(beacon_period));
2995 REG_WRITE(ah, AR_SWBA_PERIOD, TU_TO_USEC(beacon_period));
2996 REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
2998 beacon_period &= ~ATH9K_BEACON_ENA;
2999 if (beacon_period & ATH9K_BEACON_RESET_TSF) {
3000 ath9k_hw_reset_tsf(ah);
3003 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
3005 EXPORT_SYMBOL(ath9k_hw_beaconinit);
3007 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
3008 const struct ath9k_beacon_state *bs)
3010 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
3011 struct ath9k_hw_capabilities *pCap = &ah->caps;
3012 struct ath_common *common = ath9k_hw_common(ah);
3014 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
3016 REG_WRITE(ah, AR_BEACON_PERIOD,
3017 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
3018 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
3019 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
3021 REG_RMW_FIELD(ah, AR_RSSI_THR,
3022 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
3024 beaconintval = bs->bs_intval & ATH9K_BEACON_PERIOD;
3026 if (bs->bs_sleepduration > beaconintval)
3027 beaconintval = bs->bs_sleepduration;
3029 dtimperiod = bs->bs_dtimperiod;
3030 if (bs->bs_sleepduration > dtimperiod)
3031 dtimperiod = bs->bs_sleepduration;
3033 if (beaconintval == dtimperiod)
3034 nextTbtt = bs->bs_nextdtim;
3036 nextTbtt = bs->bs_nexttbtt;
3038 ath_print(common, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
3039 ath_print(common, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
3040 ath_print(common, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
3041 ath_print(common, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
3043 REG_WRITE(ah, AR_NEXT_DTIM,
3044 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
3045 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
3047 REG_WRITE(ah, AR_SLEEP1,
3048 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
3049 | AR_SLEEP1_ASSUME_DTIM);
3051 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
3052 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
3054 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
3056 REG_WRITE(ah, AR_SLEEP2,
3057 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
3059 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
3060 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
3062 REG_SET_BIT(ah, AR_TIMER_MODE,
3063 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
3066 /* TSF Out of Range Threshold */
3067 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
3069 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
3071 /*******************/
3072 /* HW Capabilities */
3073 /*******************/
3075 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
3077 struct ath9k_hw_capabilities *pCap = &ah->caps;
3078 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
3079 struct ath_common *common = ath9k_hw_common(ah);
3080 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
3082 u16 capField = 0, eeval;
3084 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
3085 regulatory->current_rd = eeval;
3087 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_1);
3088 if (AR_SREV_9285_10_OR_LATER(ah))
3089 eeval |= AR9285_RDEXT_DEFAULT;
3090 regulatory->current_rd_ext = eeval;
3092 capField = ah->eep_ops->get_eeprom(ah, EEP_OP_CAP);
3094 if (ah->opmode != NL80211_IFTYPE_AP &&
3095 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
3096 if (regulatory->current_rd == 0x64 ||
3097 regulatory->current_rd == 0x65)
3098 regulatory->current_rd += 5;
3099 else if (regulatory->current_rd == 0x41)
3100 regulatory->current_rd = 0x43;
3101 ath_print(common, ATH_DBG_REGULATORY,
3102 "regdomain mapped to 0x%x\n", regulatory->current_rd);
3105 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
3106 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
3107 ath_print(common, ATH_DBG_FATAL,
3108 "no band has been marked as supported in EEPROM.\n");
3112 bitmap_zero(pCap->wireless_modes, ATH9K_MODE_MAX);
3114 if (eeval & AR5416_OPFLAGS_11A) {
3115 set_bit(ATH9K_MODE_11A, pCap->wireless_modes);
3116 if (ah->config.ht_enable) {
3117 if (!(eeval & AR5416_OPFLAGS_N_5G_HT20))
3118 set_bit(ATH9K_MODE_11NA_HT20,
3119 pCap->wireless_modes);
3120 if (!(eeval & AR5416_OPFLAGS_N_5G_HT40)) {
3121 set_bit(ATH9K_MODE_11NA_HT40PLUS,
3122 pCap->wireless_modes);
3123 set_bit(ATH9K_MODE_11NA_HT40MINUS,
3124 pCap->wireless_modes);
3129 if (eeval & AR5416_OPFLAGS_11G) {
3130 set_bit(ATH9K_MODE_11G, pCap->wireless_modes);
3131 if (ah->config.ht_enable) {
3132 if (!(eeval & AR5416_OPFLAGS_N_2G_HT20))
3133 set_bit(ATH9K_MODE_11NG_HT20,
3134 pCap->wireless_modes);
3135 if (!(eeval & AR5416_OPFLAGS_N_2G_HT40)) {
3136 set_bit(ATH9K_MODE_11NG_HT40PLUS,
3137 pCap->wireless_modes);
3138 set_bit(ATH9K_MODE_11NG_HT40MINUS,
3139 pCap->wireless_modes);
3144 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
3146 * For AR9271 we will temporarilly uses the rx chainmax as read from
3149 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
3150 !(eeval & AR5416_OPFLAGS_11A) &&
3151 !(AR_SREV_9271(ah)))
3152 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
3153 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
3155 /* Use rx_chainmask from EEPROM. */
3156 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
3158 if (!(AR_SREV_9280(ah) && (ah->hw_version.macRev == 0)))
3159 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
3161 pCap->low_2ghz_chan = 2312;
3162 pCap->high_2ghz_chan = 2732;
3164 pCap->low_5ghz_chan = 4920;
3165 pCap->high_5ghz_chan = 6100;
3167 pCap->hw_caps &= ~ATH9K_HW_CAP_CIPHER_CKIP;
3168 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_TKIP;
3169 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_AESCCM;
3171 pCap->hw_caps &= ~ATH9K_HW_CAP_MIC_CKIP;
3172 pCap->hw_caps |= ATH9K_HW_CAP_MIC_TKIP;
3173 pCap->hw_caps |= ATH9K_HW_CAP_MIC_AESCCM;
3175 if (ah->config.ht_enable)
3176 pCap->hw_caps |= ATH9K_HW_CAP_HT;
3178 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
3180 pCap->hw_caps |= ATH9K_HW_CAP_GTT;
3181 pCap->hw_caps |= ATH9K_HW_CAP_VEOL;
3182 pCap->hw_caps |= ATH9K_HW_CAP_BSSIDMASK;
3183 pCap->hw_caps &= ~ATH9K_HW_CAP_MCAST_KEYSEARCH;
3185 if (capField & AR_EEPROM_EEPCAP_MAXQCU)
3186 pCap->total_queues =
3187 MS(capField, AR_EEPROM_EEPCAP_MAXQCU);
3189 pCap->total_queues = ATH9K_NUM_TX_QUEUES;
3191 if (capField & AR_EEPROM_EEPCAP_KC_ENTRIES)
3192 pCap->keycache_size =
3193 1 << MS(capField, AR_EEPROM_EEPCAP_KC_ENTRIES);
3195 pCap->keycache_size = AR_KEYTABLE_SIZE;
3197 pCap->hw_caps |= ATH9K_HW_CAP_FASTCC;
3199 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
3200 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD >> 1;
3202 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD;
3204 if (AR_SREV_9271(ah))
3205 pCap->num_gpio_pins = AR9271_NUM_GPIO;
3206 else if (AR_SREV_9285_10_OR_LATER(ah))
3207 pCap->num_gpio_pins = AR9285_NUM_GPIO;
3208 else if (AR_SREV_9280_10_OR_LATER(ah))
3209 pCap->num_gpio_pins = AR928X_NUM_GPIO;
3211 pCap->num_gpio_pins = AR_NUM_GPIO;
3213 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
3214 pCap->hw_caps |= ATH9K_HW_CAP_CST;
3215 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
3217 pCap->rts_aggr_limit = (8 * 1024);
3220 pCap->hw_caps |= ATH9K_HW_CAP_ENHANCEDPM;
3222 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
3223 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
3224 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
3226 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
3227 ah->rfkill_polarity =
3228 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
3230 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
3234 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
3236 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
3237 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
3239 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
3241 if (regulatory->current_rd_ext & (1 << REG_EXT_JAPAN_MIDBAND)) {
3243 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
3244 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN |
3245 AR_EEPROM_EEREGCAP_EN_KK_U2 |
3246 AR_EEPROM_EEREGCAP_EN_KK_MIDBAND;
3249 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
3250 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN;
3253 /* Advertise midband for AR5416 with FCC midband set in eeprom */
3254 if (regulatory->current_rd_ext & (1 << REG_EXT_FCC_MIDBAND) &&
3256 pCap->reg_cap |= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND;
3258 pCap->num_antcfg_5ghz =
3259 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_5GHZ);
3260 pCap->num_antcfg_2ghz =
3261 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
3263 if (AR_SREV_9280_10_OR_LATER(ah) &&
3264 ath9k_hw_btcoex_supported(ah)) {
3265 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
3266 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
3268 if (AR_SREV_9285(ah)) {
3269 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
3270 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
3272 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
3275 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
3281 bool ath9k_hw_getcapability(struct ath_hw *ah, enum ath9k_capability_type type,
3282 u32 capability, u32 *result)
3284 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
3286 case ATH9K_CAP_CIPHER:
3287 switch (capability) {
3288 case ATH9K_CIPHER_AES_CCM:
3289 case ATH9K_CIPHER_AES_OCB:
3290 case ATH9K_CIPHER_TKIP:
3291 case ATH9K_CIPHER_WEP:
3292 case ATH9K_CIPHER_MIC:
3293 case ATH9K_CIPHER_CLR:
3298 case ATH9K_CAP_TKIP_MIC:
3299 switch (capability) {
3303 return (ah->sta_id1_defaults &
3304 AR_STA_ID1_CRPT_MIC_ENABLE) ? true :
3307 case ATH9K_CAP_TKIP_SPLIT:
3308 return (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) ?
3310 case ATH9K_CAP_DIVERSITY:
3311 return (REG_READ(ah, AR_PHY_CCK_DETECT) &
3312 AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV) ?
3314 case ATH9K_CAP_MCAST_KEYSRCH:
3315 switch (capability) {
3319 if (REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_ADHOC) {
3322 return (ah->sta_id1_defaults &
3323 AR_STA_ID1_MCAST_KSRCH) ? true :
3328 case ATH9K_CAP_TXPOW:
3329 switch (capability) {
3333 *result = regulatory->power_limit;
3336 *result = regulatory->max_power_level;
3339 *result = regulatory->tp_scale;
3344 return (AR_SREV_9280_20_OR_LATER(ah) &&
3345 (ah->eep_ops->get_eeprom(ah, EEP_RC_CHAIN_MASK) == 1))
3351 EXPORT_SYMBOL(ath9k_hw_getcapability);
3353 bool ath9k_hw_setcapability(struct ath_hw *ah, enum ath9k_capability_type type,
3354 u32 capability, u32 setting, int *status)
3359 case ATH9K_CAP_TKIP_MIC:
3361 ah->sta_id1_defaults |=
3362 AR_STA_ID1_CRPT_MIC_ENABLE;
3364 ah->sta_id1_defaults &=
3365 ~AR_STA_ID1_CRPT_MIC_ENABLE;
3367 case ATH9K_CAP_DIVERSITY:
3368 v = REG_READ(ah, AR_PHY_CCK_DETECT);
3370 v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
3372 v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
3373 REG_WRITE(ah, AR_PHY_CCK_DETECT, v);
3375 case ATH9K_CAP_MCAST_KEYSRCH:
3377 ah->sta_id1_defaults |= AR_STA_ID1_MCAST_KSRCH;
3379 ah->sta_id1_defaults &= ~AR_STA_ID1_MCAST_KSRCH;
3385 EXPORT_SYMBOL(ath9k_hw_setcapability);
3387 /****************************/
3388 /* GPIO / RFKILL / Antennae */
3389 /****************************/
3391 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
3395 u32 gpio_shift, tmp;
3398 addr = AR_GPIO_OUTPUT_MUX3;
3400 addr = AR_GPIO_OUTPUT_MUX2;
3402 addr = AR_GPIO_OUTPUT_MUX1;
3404 gpio_shift = (gpio % 6) * 5;
3406 if (AR_SREV_9280_20_OR_LATER(ah)
3407 || (addr != AR_GPIO_OUTPUT_MUX1)) {
3408 REG_RMW(ah, addr, (type << gpio_shift),
3409 (0x1f << gpio_shift));
3411 tmp = REG_READ(ah, addr);
3412 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
3413 tmp &= ~(0x1f << gpio_shift);
3414 tmp |= (type << gpio_shift);
3415 REG_WRITE(ah, addr, tmp);
3419 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
3423 BUG_ON(gpio >= ah->caps.num_gpio_pins);
3425 gpio_shift = gpio << 1;
3429 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
3430 (AR_GPIO_OE_OUT_DRV << gpio_shift));
3432 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
3434 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
3436 #define MS_REG_READ(x, y) \
3437 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
3439 if (gpio >= ah->caps.num_gpio_pins)
3442 if (AR_SREV_9271(ah))
3443 return MS_REG_READ(AR9271, gpio) != 0;
3444 else if (AR_SREV_9287_10_OR_LATER(ah))
3445 return MS_REG_READ(AR9287, gpio) != 0;
3446 else if (AR_SREV_9285_10_OR_LATER(ah))
3447 return MS_REG_READ(AR9285, gpio) != 0;
3448 else if (AR_SREV_9280_10_OR_LATER(ah))
3449 return MS_REG_READ(AR928X, gpio) != 0;
3451 return MS_REG_READ(AR, gpio) != 0;
3453 EXPORT_SYMBOL(ath9k_hw_gpio_get);
3455 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
3460 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
3462 gpio_shift = 2 * gpio;
3466 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
3467 (AR_GPIO_OE_OUT_DRV << gpio_shift));
3469 EXPORT_SYMBOL(ath9k_hw_cfg_output);
3471 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
3473 if (AR_SREV_9271(ah))
3476 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
3479 EXPORT_SYMBOL(ath9k_hw_set_gpio);
3481 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
3483 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
3485 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
3487 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
3489 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
3491 EXPORT_SYMBOL(ath9k_hw_setantenna);
3493 /*********************/
3494 /* General Operation */
3495 /*********************/
3497 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
3499 u32 bits = REG_READ(ah, AR_RX_FILTER);
3500 u32 phybits = REG_READ(ah, AR_PHY_ERR);
3502 if (phybits & AR_PHY_ERR_RADAR)
3503 bits |= ATH9K_RX_FILTER_PHYRADAR;
3504 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
3505 bits |= ATH9K_RX_FILTER_PHYERR;
3509 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
3511 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
3515 REG_WRITE(ah, AR_RX_FILTER, bits);
3518 if (bits & ATH9K_RX_FILTER_PHYRADAR)
3519 phybits |= AR_PHY_ERR_RADAR;
3520 if (bits & ATH9K_RX_FILTER_PHYERR)
3521 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
3522 REG_WRITE(ah, AR_PHY_ERR, phybits);
3525 REG_WRITE(ah, AR_RXCFG,
3526 REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
3528 REG_WRITE(ah, AR_RXCFG,
3529 REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
3531 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
3533 bool ath9k_hw_phy_disable(struct ath_hw *ah)
3535 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
3538 ath9k_hw_init_pll(ah, NULL);
3541 EXPORT_SYMBOL(ath9k_hw_phy_disable);
3543 bool ath9k_hw_disable(struct ath_hw *ah)
3545 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
3548 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
3551 ath9k_hw_init_pll(ah, NULL);
3554 EXPORT_SYMBOL(ath9k_hw_disable);
3556 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
3558 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
3559 struct ath9k_channel *chan = ah->curchan;
3560 struct ieee80211_channel *channel = chan->chan;
3562 regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
3564 ah->eep_ops->set_txpower(ah, chan,
3565 ath9k_regd_get_ctl(regulatory, chan),
3566 channel->max_antenna_gain * 2,
3567 channel->max_power * 2,
3568 min((u32) MAX_RATE_POWER,
3569 (u32) regulatory->power_limit));
3571 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
3573 void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac)
3575 memcpy(ath9k_hw_common(ah)->macaddr, mac, ETH_ALEN);
3577 EXPORT_SYMBOL(ath9k_hw_setmac);
3579 void ath9k_hw_setopmode(struct ath_hw *ah)
3581 ath9k_hw_set_operating_mode(ah, ah->opmode);
3583 EXPORT_SYMBOL(ath9k_hw_setopmode);
3585 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
3587 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
3588 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
3590 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
3592 void ath9k_hw_write_associd(struct ath_hw *ah)
3594 struct ath_common *common = ath9k_hw_common(ah);
3596 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
3597 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
3598 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
3600 EXPORT_SYMBOL(ath9k_hw_write_associd);
3602 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
3606 tsf = REG_READ(ah, AR_TSF_U32);
3607 tsf = (tsf << 32) | REG_READ(ah, AR_TSF_L32);
3611 EXPORT_SYMBOL(ath9k_hw_gettsf64);
3613 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
3615 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
3616 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
3618 EXPORT_SYMBOL(ath9k_hw_settsf64);
3620 void ath9k_hw_reset_tsf(struct ath_hw *ah)
3622 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
3623 AH_TSF_WRITE_TIMEOUT))
3624 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
3625 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
3627 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
3629 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
3631 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
3634 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
3636 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
3638 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
3641 * Extend 15-bit time stamp from rx descriptor to
3642 * a full 64-bit TSF using the current h/w TSF.
3644 u64 ath9k_hw_extend_tsf(struct ath_hw *ah, u32 rstamp)
3648 tsf = ath9k_hw_gettsf64(ah);
3649 if ((tsf & 0x7fff) < rstamp)
3651 return (tsf & ~0x7fff) | rstamp;
3653 EXPORT_SYMBOL(ath9k_hw_extend_tsf);
3655 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
3657 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
3660 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
3661 macmode = AR_2040_JOINED_RX_CLEAR;
3665 REG_WRITE(ah, AR_2040_MODE, macmode);
3668 /* HW Generic timers configuration */
3670 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
3672 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
3673 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
3674 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
3675 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
3676 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
3677 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
3678 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
3679 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
3680 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
3681 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
3682 AR_NDP2_TIMER_MODE, 0x0002},
3683 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
3684 AR_NDP2_TIMER_MODE, 0x0004},
3685 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
3686 AR_NDP2_TIMER_MODE, 0x0008},
3687 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
3688 AR_NDP2_TIMER_MODE, 0x0010},
3689 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
3690 AR_NDP2_TIMER_MODE, 0x0020},
3691 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
3692 AR_NDP2_TIMER_MODE, 0x0040},
3693 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
3694 AR_NDP2_TIMER_MODE, 0x0080}
3697 /* HW generic timer primitives */
3699 /* compute and clear index of rightmost 1 */
3700 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
3710 return timer_table->gen_timer_index[b];
3713 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
3715 return REG_READ(ah, AR_TSF_L32);
3717 EXPORT_SYMBOL(ath9k_hw_gettsf32);
3719 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
3720 void (*trigger)(void *),
3721 void (*overflow)(void *),
3725 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3726 struct ath_gen_timer *timer;
3728 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
3730 if (timer == NULL) {
3731 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
3732 "Failed to allocate memory"
3733 "for hw timer[%d]\n", timer_index);
3737 /* allocate a hardware generic timer slot */
3738 timer_table->timers[timer_index] = timer;
3739 timer->index = timer_index;
3740 timer->trigger = trigger;
3741 timer->overflow = overflow;
3746 EXPORT_SYMBOL(ath_gen_timer_alloc);
3748 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
3749 struct ath_gen_timer *timer,
3753 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3756 BUG_ON(!timer_period);
3758 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
3760 tsf = ath9k_hw_gettsf32(ah);
3762 ath_print(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
3763 "curent tsf %x period %x"
3764 "timer_next %x\n", tsf, timer_period, timer_next);
3767 * Pull timer_next forward if the current TSF already passed it
3768 * because of software latency
3770 if (timer_next < tsf)
3771 timer_next = tsf + timer_period;
3774 * Program generic timer registers
3776 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
3778 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
3780 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
3781 gen_tmr_configuration[timer->index].mode_mask);
3783 /* Enable both trigger and thresh interrupt masks */
3784 REG_SET_BIT(ah, AR_IMR_S5,
3785 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
3786 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
3788 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
3790 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
3792 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3794 if ((timer->index < AR_FIRST_NDP_TIMER) ||
3795 (timer->index >= ATH_MAX_GEN_TIMER)) {
3799 /* Clear generic timer enable bits. */
3800 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
3801 gen_tmr_configuration[timer->index].mode_mask);
3803 /* Disable both trigger and thresh interrupt masks */
3804 REG_CLR_BIT(ah, AR_IMR_S5,
3805 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
3806 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
3808 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
3810 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
3812 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
3814 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3816 /* free the hardware generic timer slot */
3817 timer_table->timers[timer->index] = NULL;
3820 EXPORT_SYMBOL(ath_gen_timer_free);
3823 * Generic Timer Interrupts handling
3825 void ath_gen_timer_isr(struct ath_hw *ah)
3827 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3828 struct ath_gen_timer *timer;
3829 struct ath_common *common = ath9k_hw_common(ah);
3830 u32 trigger_mask, thresh_mask, index;
3832 /* get hardware generic timer interrupt status */
3833 trigger_mask = ah->intr_gen_timer_trigger;
3834 thresh_mask = ah->intr_gen_timer_thresh;
3835 trigger_mask &= timer_table->timer_mask.val;
3836 thresh_mask &= timer_table->timer_mask.val;
3838 trigger_mask &= ~thresh_mask;
3840 while (thresh_mask) {
3841 index = rightmost_index(timer_table, &thresh_mask);
3842 timer = timer_table->timers[index];
3844 ath_print(common, ATH_DBG_HWTIMER,
3845 "TSF overflow for Gen timer %d\n", index);
3846 timer->overflow(timer->arg);
3849 while (trigger_mask) {
3850 index = rightmost_index(timer_table, &trigger_mask);
3851 timer = timer_table->timers[index];
3853 ath_print(common, ATH_DBG_HWTIMER,
3854 "Gen timer[%d] trigger\n", index);
3855 timer->trigger(timer->arg);
3858 EXPORT_SYMBOL(ath_gen_timer_isr);
3863 } ath_mac_bb_names[] = {
3864 /* Devices with external radios */
3865 { AR_SREV_VERSION_5416_PCI, "5416" },
3866 { AR_SREV_VERSION_5416_PCIE, "5418" },
3867 { AR_SREV_VERSION_9100, "9100" },
3868 { AR_SREV_VERSION_9160, "9160" },
3869 /* Single-chip solutions */
3870 { AR_SREV_VERSION_9280, "9280" },
3871 { AR_SREV_VERSION_9285, "9285" },
3872 { AR_SREV_VERSION_9287, "9287" },
3873 { AR_SREV_VERSION_9271, "9271" },
3876 /* For devices with external radios */
3880 } ath_rf_names[] = {
3882 { AR_RAD5133_SREV_MAJOR, "5133" },
3883 { AR_RAD5122_SREV_MAJOR, "5122" },
3884 { AR_RAD2133_SREV_MAJOR, "2133" },
3885 { AR_RAD2122_SREV_MAJOR, "2122" }
3889 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
3891 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
3895 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
3896 if (ath_mac_bb_names[i].version == mac_bb_version) {
3897 return ath_mac_bb_names[i].name;
3905 * Return the RF name. "????" is returned if the RF is unknown.
3906 * Used for devices with external radios.
3908 static const char *ath9k_hw_rf_name(u16 rf_version)
3912 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
3913 if (ath_rf_names[i].version == rf_version) {
3914 return ath_rf_names[i].name;
3921 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
3925 /* chipsets >= AR9280 are single-chip */
3926 if (AR_SREV_9280_10_OR_LATER(ah)) {
3927 used = snprintf(hw_name, len,
3928 "Atheros AR%s Rev:%x",
3929 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3930 ah->hw_version.macRev);
3933 used = snprintf(hw_name, len,
3934 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
3935 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3936 ah->hw_version.macRev,
3937 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
3938 AR_RADIO_SREV_MAJOR)),
3939 ah->hw_version.phyRev);
3942 hw_name[used] = '\0';
3944 EXPORT_SYMBOL(ath9k_hw_name);