2 * Copyright (c) 2008-2010 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 <linux/slab.h>
19 #include <asm/unaligned.h>
24 #include "ar9003_mac.h"
26 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
28 MODULE_AUTHOR("Atheros Communications");
29 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
30 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
31 MODULE_LICENSE("Dual BSD/GPL");
33 static int __init ath9k_init(void)
37 module_init(ath9k_init);
39 static void __exit ath9k_exit(void)
43 module_exit(ath9k_exit);
45 /* Private hardware callbacks */
47 static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
49 ath9k_hw_private_ops(ah)->init_cal_settings(ah);
52 static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
54 ath9k_hw_private_ops(ah)->init_mode_regs(ah);
57 static u32 ath9k_hw_compute_pll_control(struct ath_hw *ah,
58 struct ath9k_channel *chan)
60 return ath9k_hw_private_ops(ah)->compute_pll_control(ah, chan);
63 static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
65 if (!ath9k_hw_private_ops(ah)->init_mode_gain_regs)
68 ath9k_hw_private_ops(ah)->init_mode_gain_regs(ah);
71 static void ath9k_hw_ani_cache_ini_regs(struct ath_hw *ah)
73 /* You will not have this callback if using the old ANI */
74 if (!ath9k_hw_private_ops(ah)->ani_cache_ini_regs)
77 ath9k_hw_private_ops(ah)->ani_cache_ini_regs(ah);
80 /********************/
81 /* Helper Functions */
82 /********************/
84 static void ath9k_hw_set_clockrate(struct ath_hw *ah)
86 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
87 struct ath_common *common = ath9k_hw_common(ah);
88 unsigned int clockrate;
90 if (!ah->curchan) /* should really check for CCK instead */
91 clockrate = ATH9K_CLOCK_RATE_CCK;
92 else if (conf->channel->band == IEEE80211_BAND_2GHZ)
93 clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
94 else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
95 clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
97 clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
99 if (conf_is_ht40(conf))
102 common->clockrate = clockrate;
105 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
107 struct ath_common *common = ath9k_hw_common(ah);
109 return usecs * common->clockrate;
112 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
116 BUG_ON(timeout < AH_TIME_QUANTUM);
118 for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
119 if ((REG_READ(ah, reg) & mask) == val)
122 udelay(AH_TIME_QUANTUM);
125 ath_dbg(ath9k_hw_common(ah), ATH_DBG_ANY,
126 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
127 timeout, reg, REG_READ(ah, reg), mask, val);
131 EXPORT_SYMBOL(ath9k_hw_wait);
133 void ath9k_hw_write_array(struct ath_hw *ah, struct ar5416IniArray *array,
134 int column, unsigned int *writecnt)
138 ENABLE_REGWRITE_BUFFER(ah);
139 for (r = 0; r < array->ia_rows; r++) {
140 REG_WRITE(ah, INI_RA(array, r, 0),
141 INI_RA(array, r, column));
144 REGWRITE_BUFFER_FLUSH(ah);
147 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
152 for (i = 0, retval = 0; i < n; i++) {
153 retval = (retval << 1) | (val & 1);
159 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
161 u32 frameLen, u16 rateix,
164 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
170 case WLAN_RC_PHY_CCK:
171 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
174 numBits = frameLen << 3;
175 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
177 case WLAN_RC_PHY_OFDM:
178 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
179 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
180 numBits = OFDM_PLCP_BITS + (frameLen << 3);
181 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
182 txTime = OFDM_SIFS_TIME_QUARTER
183 + OFDM_PREAMBLE_TIME_QUARTER
184 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
185 } else if (ah->curchan &&
186 IS_CHAN_HALF_RATE(ah->curchan)) {
187 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
188 numBits = OFDM_PLCP_BITS + (frameLen << 3);
189 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
190 txTime = OFDM_SIFS_TIME_HALF +
191 OFDM_PREAMBLE_TIME_HALF
192 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
194 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
195 numBits = OFDM_PLCP_BITS + (frameLen << 3);
196 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
197 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
198 + (numSymbols * OFDM_SYMBOL_TIME);
202 ath_err(ath9k_hw_common(ah),
203 "Unknown phy %u (rate ix %u)\n", phy, rateix);
210 EXPORT_SYMBOL(ath9k_hw_computetxtime);
212 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
213 struct ath9k_channel *chan,
214 struct chan_centers *centers)
218 if (!IS_CHAN_HT40(chan)) {
219 centers->ctl_center = centers->ext_center =
220 centers->synth_center = chan->channel;
224 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
225 (chan->chanmode == CHANNEL_G_HT40PLUS)) {
226 centers->synth_center =
227 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
230 centers->synth_center =
231 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
235 centers->ctl_center =
236 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
237 /* 25 MHz spacing is supported by hw but not on upper layers */
238 centers->ext_center =
239 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
246 static void ath9k_hw_read_revisions(struct ath_hw *ah)
250 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
253 val = REG_READ(ah, AR_SREV);
254 ah->hw_version.macVersion =
255 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
256 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
257 ah->is_pciexpress = (val & AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
259 if (!AR_SREV_9100(ah))
260 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
262 ah->hw_version.macRev = val & AR_SREV_REVISION;
264 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
265 ah->is_pciexpress = true;
269 /************************************/
270 /* HW Attach, Detach, Init Routines */
271 /************************************/
273 static void ath9k_hw_disablepcie(struct ath_hw *ah)
275 if (!AR_SREV_5416(ah))
278 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
279 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
280 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
281 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
282 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
283 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
284 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
285 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
286 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
288 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
291 /* This should work for all families including legacy */
292 static bool ath9k_hw_chip_test(struct ath_hw *ah)
294 struct ath_common *common = ath9k_hw_common(ah);
295 u32 regAddr[2] = { AR_STA_ID0 };
297 static const u32 patternData[4] = {
298 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999
302 if (!AR_SREV_9300_20_OR_LATER(ah)) {
304 regAddr[1] = AR_PHY_BASE + (8 << 2);
308 for (i = 0; i < loop_max; i++) {
309 u32 addr = regAddr[i];
312 regHold[i] = REG_READ(ah, addr);
313 for (j = 0; j < 0x100; j++) {
314 wrData = (j << 16) | j;
315 REG_WRITE(ah, addr, wrData);
316 rdData = REG_READ(ah, addr);
317 if (rdData != wrData) {
319 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
320 addr, wrData, rdData);
324 for (j = 0; j < 4; j++) {
325 wrData = patternData[j];
326 REG_WRITE(ah, addr, wrData);
327 rdData = REG_READ(ah, addr);
328 if (wrData != rdData) {
330 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
331 addr, wrData, rdData);
335 REG_WRITE(ah, regAddr[i], regHold[i]);
342 static void ath9k_hw_init_config(struct ath_hw *ah)
346 ah->config.dma_beacon_response_time = 2;
347 ah->config.sw_beacon_response_time = 10;
348 ah->config.additional_swba_backoff = 0;
349 ah->config.ack_6mb = 0x0;
350 ah->config.cwm_ignore_extcca = 0;
351 ah->config.pcie_powersave_enable = 0;
352 ah->config.pcie_clock_req = 0;
353 ah->config.pcie_waen = 0;
354 ah->config.analog_shiftreg = 1;
355 ah->config.enable_ani = true;
357 for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
358 ah->config.spurchans[i][0] = AR_NO_SPUR;
359 ah->config.spurchans[i][1] = AR_NO_SPUR;
362 /* PAPRD needs some more work to be enabled */
363 ah->config.paprd_disable = 1;
365 ah->config.rx_intr_mitigation = true;
366 ah->config.pcieSerDesWrite = true;
369 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
370 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
371 * This means we use it for all AR5416 devices, and the few
372 * minor PCI AR9280 devices out there.
374 * Serialization is required because these devices do not handle
375 * well the case of two concurrent reads/writes due to the latency
376 * involved. During one read/write another read/write can be issued
377 * on another CPU while the previous read/write may still be working
378 * on our hardware, if we hit this case the hardware poops in a loop.
379 * We prevent this by serializing reads and writes.
381 * This issue is not present on PCI-Express devices or pre-AR5416
382 * devices (legacy, 802.11abg).
384 if (num_possible_cpus() > 1)
385 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
388 static void ath9k_hw_init_defaults(struct ath_hw *ah)
390 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
392 regulatory->country_code = CTRY_DEFAULT;
393 regulatory->power_limit = MAX_RATE_POWER;
394 regulatory->tp_scale = ATH9K_TP_SCALE_MAX;
396 ah->hw_version.magic = AR5416_MAGIC;
397 ah->hw_version.subvendorid = 0;
400 ah->sta_id1_defaults =
401 AR_STA_ID1_CRPT_MIC_ENABLE |
402 AR_STA_ID1_MCAST_KSRCH;
403 if (AR_SREV_9100(ah))
404 ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX;
405 ah->enable_32kHz_clock = DONT_USE_32KHZ;
407 ah->globaltxtimeout = (u32) -1;
408 ah->power_mode = ATH9K_PM_UNDEFINED;
411 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
413 struct ath_common *common = ath9k_hw_common(ah);
417 static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
420 for (i = 0; i < 3; i++) {
421 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
423 common->macaddr[2 * i] = eeval >> 8;
424 common->macaddr[2 * i + 1] = eeval & 0xff;
426 if (sum == 0 || sum == 0xffff * 3)
427 return -EADDRNOTAVAIL;
432 static int ath9k_hw_post_init(struct ath_hw *ah)
434 struct ath_common *common = ath9k_hw_common(ah);
437 if (common->bus_ops->ath_bus_type != ATH_USB) {
438 if (!ath9k_hw_chip_test(ah))
442 if (!AR_SREV_9300_20_OR_LATER(ah)) {
443 ecode = ar9002_hw_rf_claim(ah);
448 ecode = ath9k_hw_eeprom_init(ah);
452 ath_dbg(ath9k_hw_common(ah), ATH_DBG_CONFIG,
453 "Eeprom VER: %d, REV: %d\n",
454 ah->eep_ops->get_eeprom_ver(ah),
455 ah->eep_ops->get_eeprom_rev(ah));
457 ecode = ath9k_hw_rf_alloc_ext_banks(ah);
459 ath_err(ath9k_hw_common(ah),
460 "Failed allocating banks for external radio\n");
461 ath9k_hw_rf_free_ext_banks(ah);
465 if (!AR_SREV_9100(ah)) {
466 ath9k_hw_ani_setup(ah);
467 ath9k_hw_ani_init(ah);
473 static void ath9k_hw_attach_ops(struct ath_hw *ah)
475 if (AR_SREV_9300_20_OR_LATER(ah))
476 ar9003_hw_attach_ops(ah);
478 ar9002_hw_attach_ops(ah);
481 /* Called for all hardware families */
482 static int __ath9k_hw_init(struct ath_hw *ah)
484 struct ath_common *common = ath9k_hw_common(ah);
487 if (ah->hw_version.devid == AR5416_AR9100_DEVID)
488 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
490 ath9k_hw_read_revisions(ah);
493 * Read back AR_WA into a permanent copy and set bits 14 and 17.
494 * We need to do this to avoid RMW of this register. We cannot
495 * read the reg when chip is asleep.
497 ah->WARegVal = REG_READ(ah, AR_WA);
498 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
499 AR_WA_ASPM_TIMER_BASED_DISABLE);
501 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
502 ath_err(common, "Couldn't reset chip\n");
506 ath9k_hw_init_defaults(ah);
507 ath9k_hw_init_config(ah);
509 ath9k_hw_attach_ops(ah);
511 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
512 ath_err(common, "Couldn't wakeup chip\n");
516 if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
517 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
518 ((AR_SREV_9160(ah) || AR_SREV_9280(ah)) &&
519 !ah->is_pciexpress)) {
520 ah->config.serialize_regmode =
523 ah->config.serialize_regmode =
528 ath_dbg(common, ATH_DBG_RESET, "serialize_regmode is %d\n",
529 ah->config.serialize_regmode);
531 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
532 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
534 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
536 switch (ah->hw_version.macVersion) {
537 case AR_SREV_VERSION_5416_PCI:
538 case AR_SREV_VERSION_5416_PCIE:
539 case AR_SREV_VERSION_9160:
540 case AR_SREV_VERSION_9100:
541 case AR_SREV_VERSION_9280:
542 case AR_SREV_VERSION_9285:
543 case AR_SREV_VERSION_9287:
544 case AR_SREV_VERSION_9271:
545 case AR_SREV_VERSION_9300:
546 case AR_SREV_VERSION_9485:
550 "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
551 ah->hw_version.macVersion, ah->hw_version.macRev);
555 if (AR_SREV_9271(ah) || AR_SREV_9100(ah))
556 ah->is_pciexpress = false;
558 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
559 ath9k_hw_init_cal_settings(ah);
561 ah->ani_function = ATH9K_ANI_ALL;
562 if (AR_SREV_9280_20_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah))
563 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
564 if (!AR_SREV_9300_20_OR_LATER(ah))
565 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
567 ath9k_hw_init_mode_regs(ah);
570 if (ah->is_pciexpress)
571 ath9k_hw_configpcipowersave(ah, 0, 0);
573 ath9k_hw_disablepcie(ah);
575 if (!AR_SREV_9300_20_OR_LATER(ah))
576 ar9002_hw_cck_chan14_spread(ah);
578 r = ath9k_hw_post_init(ah);
582 ath9k_hw_init_mode_gain_regs(ah);
583 r = ath9k_hw_fill_cap_info(ah);
587 r = ath9k_hw_init_macaddr(ah);
589 ath_err(common, "Failed to initialize MAC address\n");
593 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
594 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
596 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
598 ah->bb_watchdog_timeout_ms = 25;
600 common->state = ATH_HW_INITIALIZED;
605 int ath9k_hw_init(struct ath_hw *ah)
608 struct ath_common *common = ath9k_hw_common(ah);
610 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
611 switch (ah->hw_version.devid) {
612 case AR5416_DEVID_PCI:
613 case AR5416_DEVID_PCIE:
614 case AR5416_AR9100_DEVID:
615 case AR9160_DEVID_PCI:
616 case AR9280_DEVID_PCI:
617 case AR9280_DEVID_PCIE:
618 case AR9285_DEVID_PCIE:
619 case AR9287_DEVID_PCI:
620 case AR9287_DEVID_PCIE:
621 case AR2427_DEVID_PCIE:
622 case AR9300_DEVID_PCIE:
623 case AR9300_DEVID_AR9485_PCIE:
626 if (common->bus_ops->ath_bus_type == ATH_USB)
628 ath_err(common, "Hardware device ID 0x%04x not supported\n",
629 ah->hw_version.devid);
633 ret = __ath9k_hw_init(ah);
636 "Unable to initialize hardware; initialization status: %d\n",
643 EXPORT_SYMBOL(ath9k_hw_init);
645 static void ath9k_hw_init_qos(struct ath_hw *ah)
647 ENABLE_REGWRITE_BUFFER(ah);
649 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
650 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
652 REG_WRITE(ah, AR_QOS_NO_ACK,
653 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
654 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
655 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
657 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
658 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
659 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
660 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
661 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
663 REGWRITE_BUFFER_FLUSH(ah);
666 unsigned long ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
668 REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
670 REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
672 while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0)
675 return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
677 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
679 #define DPLL2_KD_VAL 0x3D
680 #define DPLL2_KI_VAL 0x06
681 #define DPLL3_PHASE_SHIFT_VAL 0x1
683 static void ath9k_hw_init_pll(struct ath_hw *ah,
684 struct ath9k_channel *chan)
688 if (AR_SREV_9485(ah)) {
689 REG_WRITE(ah, AR_RTC_PLL_CONTROL2, 0x886666);
690 REG_WRITE(ah, AR_CH0_DDR_DPLL2, 0x19e82f01);
692 REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3,
693 AR_CH0_DPLL3_PHASE_SHIFT, DPLL3_PHASE_SHIFT_VAL);
695 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
698 REG_WRITE(ah, AR_RTC_PLL_CONTROL2, 0x886666);
700 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
701 AR_CH0_DPLL2_KD, DPLL2_KD_VAL);
702 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
703 AR_CH0_DPLL2_KI, DPLL2_KI_VAL);
705 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
706 AR_CH0_DPLL3_PHASE_SHIFT, DPLL3_PHASE_SHIFT_VAL);
707 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x142c);
711 pll = ath9k_hw_compute_pll_control(ah, chan);
713 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
715 /* Switch the core clock for ar9271 to 117Mhz */
716 if (AR_SREV_9271(ah)) {
718 REG_WRITE(ah, 0x50040, 0x304);
721 udelay(RTC_PLL_SETTLE_DELAY);
723 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
726 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
727 enum nl80211_iftype opmode)
729 u32 imr_reg = AR_IMR_TXERR |
735 if (AR_SREV_9300_20_OR_LATER(ah)) {
736 imr_reg |= AR_IMR_RXOK_HP;
737 if (ah->config.rx_intr_mitigation)
738 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
740 imr_reg |= AR_IMR_RXOK_LP;
743 if (ah->config.rx_intr_mitigation)
744 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
746 imr_reg |= AR_IMR_RXOK;
749 if (ah->config.tx_intr_mitigation)
750 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
752 imr_reg |= AR_IMR_TXOK;
754 if (opmode == NL80211_IFTYPE_AP)
755 imr_reg |= AR_IMR_MIB;
757 ENABLE_REGWRITE_BUFFER(ah);
759 REG_WRITE(ah, AR_IMR, imr_reg);
760 ah->imrs2_reg |= AR_IMR_S2_GTT;
761 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
763 if (!AR_SREV_9100(ah)) {
764 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
765 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
766 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
769 REGWRITE_BUFFER_FLUSH(ah);
771 if (AR_SREV_9300_20_OR_LATER(ah)) {
772 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
773 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
774 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
775 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
779 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
781 u32 val = ath9k_hw_mac_to_clks(ah, us);
782 val = min(val, (u32) 0xFFFF);
783 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
786 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
788 u32 val = ath9k_hw_mac_to_clks(ah, us);
789 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
790 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
793 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
795 u32 val = ath9k_hw_mac_to_clks(ah, us);
796 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
797 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
800 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
803 ath_dbg(ath9k_hw_common(ah), ATH_DBG_XMIT,
804 "bad global tx timeout %u\n", tu);
805 ah->globaltxtimeout = (u32) -1;
808 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
809 ah->globaltxtimeout = tu;
814 void ath9k_hw_init_global_settings(struct ath_hw *ah)
816 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
821 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
824 if (ah->misc_mode != 0)
825 REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
827 if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ)
832 /* As defined by IEEE 802.11-2007 17.3.8.6 */
833 slottime = ah->slottime + 3 * ah->coverage_class;
834 acktimeout = slottime + sifstime;
837 * Workaround for early ACK timeouts, add an offset to match the
838 * initval's 64us ack timeout value.
839 * This was initially only meant to work around an issue with delayed
840 * BA frames in some implementations, but it has been found to fix ACK
841 * timeout issues in other cases as well.
843 if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
844 acktimeout += 64 - sifstime - ah->slottime;
846 ath9k_hw_setslottime(ah, ah->slottime);
847 ath9k_hw_set_ack_timeout(ah, acktimeout);
848 ath9k_hw_set_cts_timeout(ah, acktimeout);
849 if (ah->globaltxtimeout != (u32) -1)
850 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
852 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
854 void ath9k_hw_deinit(struct ath_hw *ah)
856 struct ath_common *common = ath9k_hw_common(ah);
858 if (common->state < ATH_HW_INITIALIZED)
861 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
864 ath9k_hw_rf_free_ext_banks(ah);
866 EXPORT_SYMBOL(ath9k_hw_deinit);
872 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
874 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
878 else if (IS_CHAN_G(chan))
886 /****************************************/
887 /* Reset and Channel Switching Routines */
888 /****************************************/
890 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
892 struct ath_common *common = ath9k_hw_common(ah);
894 ENABLE_REGWRITE_BUFFER(ah);
897 * set AHB_MODE not to do cacheline prefetches
899 if (!AR_SREV_9300_20_OR_LATER(ah))
900 REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
903 * let mac dma reads be in 128 byte chunks
905 REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK);
907 REGWRITE_BUFFER_FLUSH(ah);
910 * Restore TX Trigger Level to its pre-reset value.
911 * The initial value depends on whether aggregation is enabled, and is
912 * adjusted whenever underruns are detected.
914 if (!AR_SREV_9300_20_OR_LATER(ah))
915 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
917 ENABLE_REGWRITE_BUFFER(ah);
920 * let mac dma writes be in 128 byte chunks
922 REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK);
925 * Setup receive FIFO threshold to hold off TX activities
927 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
929 if (AR_SREV_9300_20_OR_LATER(ah)) {
930 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
931 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
933 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
934 ah->caps.rx_status_len);
938 * reduce the number of usable entries in PCU TXBUF to avoid
939 * wrap around issues.
941 if (AR_SREV_9285(ah)) {
942 /* For AR9285 the number of Fifos are reduced to half.
943 * So set the usable tx buf size also to half to
944 * avoid data/delimiter underruns
946 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
947 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
948 } else if (!AR_SREV_9271(ah)) {
949 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
950 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
953 REGWRITE_BUFFER_FLUSH(ah);
955 if (AR_SREV_9300_20_OR_LATER(ah))
956 ath9k_hw_reset_txstatus_ring(ah);
959 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
961 u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC;
962 u32 set = AR_STA_ID1_KSRCH_MODE;
965 case NL80211_IFTYPE_ADHOC:
966 case NL80211_IFTYPE_MESH_POINT:
967 set |= AR_STA_ID1_ADHOC;
968 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
970 case NL80211_IFTYPE_AP:
971 set |= AR_STA_ID1_STA_AP;
973 case NL80211_IFTYPE_STATION:
974 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
977 if (!ah->is_monitoring)
981 REG_RMW(ah, AR_STA_ID1, set, mask);
984 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
985 u32 *coef_mantissa, u32 *coef_exponent)
987 u32 coef_exp, coef_man;
989 for (coef_exp = 31; coef_exp > 0; coef_exp--)
990 if ((coef_scaled >> coef_exp) & 0x1)
993 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
995 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
997 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
998 *coef_exponent = coef_exp - 16;
1001 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1006 if (AR_SREV_9100(ah)) {
1007 REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK,
1008 AR_RTC_DERIVED_CLK_PERIOD, 1);
1009 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1012 ENABLE_REGWRITE_BUFFER(ah);
1014 if (AR_SREV_9300_20_OR_LATER(ah)) {
1015 REG_WRITE(ah, AR_WA, ah->WARegVal);
1019 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1020 AR_RTC_FORCE_WAKE_ON_INT);
1022 if (AR_SREV_9100(ah)) {
1023 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1024 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1026 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1028 (AR_INTR_SYNC_LOCAL_TIMEOUT |
1029 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1031 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1034 if (!AR_SREV_9300_20_OR_LATER(ah))
1036 REG_WRITE(ah, AR_RC, val);
1038 } else if (!AR_SREV_9300_20_OR_LATER(ah))
1039 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1041 rst_flags = AR_RTC_RC_MAC_WARM;
1042 if (type == ATH9K_RESET_COLD)
1043 rst_flags |= AR_RTC_RC_MAC_COLD;
1046 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1048 REGWRITE_BUFFER_FLUSH(ah);
1052 REG_WRITE(ah, AR_RTC_RC, 0);
1053 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1054 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
1055 "RTC stuck in MAC reset\n");
1059 if (!AR_SREV_9100(ah))
1060 REG_WRITE(ah, AR_RC, 0);
1062 if (AR_SREV_9100(ah))
1068 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1070 ENABLE_REGWRITE_BUFFER(ah);
1072 if (AR_SREV_9300_20_OR_LATER(ah)) {
1073 REG_WRITE(ah, AR_WA, ah->WARegVal);
1077 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1078 AR_RTC_FORCE_WAKE_ON_INT);
1080 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1081 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1083 REG_WRITE(ah, AR_RTC_RESET, 0);
1085 REGWRITE_BUFFER_FLUSH(ah);
1087 if (!AR_SREV_9300_20_OR_LATER(ah))
1090 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1091 REG_WRITE(ah, AR_RC, 0);
1093 REG_WRITE(ah, AR_RTC_RESET, 1);
1095 if (!ath9k_hw_wait(ah,
1100 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
1101 "RTC not waking up\n");
1105 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1108 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1110 if (AR_SREV_9300_20_OR_LATER(ah)) {
1111 REG_WRITE(ah, AR_WA, ah->WARegVal);
1115 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1116 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1119 case ATH9K_RESET_POWER_ON:
1120 return ath9k_hw_set_reset_power_on(ah);
1121 case ATH9K_RESET_WARM:
1122 case ATH9K_RESET_COLD:
1123 return ath9k_hw_set_reset(ah, type);
1129 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1130 struct ath9k_channel *chan)
1132 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1133 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1135 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1138 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1141 ah->chip_fullsleep = false;
1142 ath9k_hw_init_pll(ah, chan);
1143 ath9k_hw_set_rfmode(ah, chan);
1148 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1149 struct ath9k_channel *chan)
1151 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1152 struct ath_common *common = ath9k_hw_common(ah);
1153 struct ieee80211_channel *channel = chan->chan;
1157 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1158 if (ath9k_hw_numtxpending(ah, qnum)) {
1159 ath_dbg(common, ATH_DBG_QUEUE,
1160 "Transmit frames pending on queue %d\n", qnum);
1165 if (!ath9k_hw_rfbus_req(ah)) {
1166 ath_err(common, "Could not kill baseband RX\n");
1170 ath9k_hw_set_channel_regs(ah, chan);
1172 r = ath9k_hw_rf_set_freq(ah, chan);
1174 ath_err(common, "Failed to set channel\n");
1177 ath9k_hw_set_clockrate(ah);
1179 ah->eep_ops->set_txpower(ah, chan,
1180 ath9k_regd_get_ctl(regulatory, chan),
1181 channel->max_antenna_gain * 2,
1182 channel->max_power * 2,
1183 min((u32) MAX_RATE_POWER,
1184 (u32) regulatory->power_limit), false);
1186 ath9k_hw_rfbus_done(ah);
1188 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1189 ath9k_hw_set_delta_slope(ah, chan);
1191 ath9k_hw_spur_mitigate_freq(ah, chan);
1196 static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
1198 u32 gpio_mask = ah->gpio_mask;
1201 for (i = 0; gpio_mask; i++, gpio_mask >>= 1) {
1202 if (!(gpio_mask & 1))
1205 ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
1206 ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
1210 bool ath9k_hw_check_alive(struct ath_hw *ah)
1215 if (AR_SREV_9285_12_OR_LATER(ah))
1219 reg = REG_READ(ah, AR_OBS_BUS_1);
1221 if ((reg & 0x7E7FFFEF) == 0x00702400)
1224 switch (reg & 0x7E000B00) {
1232 } while (count-- > 0);
1236 EXPORT_SYMBOL(ath9k_hw_check_alive);
1238 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1239 struct ath9k_hw_cal_data *caldata, bool bChannelChange)
1241 struct ath_common *common = ath9k_hw_common(ah);
1243 struct ath9k_channel *curchan = ah->curchan;
1249 ah->txchainmask = common->tx_chainmask;
1250 ah->rxchainmask = common->rx_chainmask;
1252 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1255 if (curchan && !ah->chip_fullsleep)
1256 ath9k_hw_getnf(ah, curchan);
1258 ah->caldata = caldata;
1260 (chan->channel != caldata->channel ||
1261 (chan->channelFlags & ~CHANNEL_CW_INT) !=
1262 (caldata->channelFlags & ~CHANNEL_CW_INT))) {
1263 /* Operating channel changed, reset channel calibration data */
1264 memset(caldata, 0, sizeof(*caldata));
1265 ath9k_init_nfcal_hist_buffer(ah, chan);
1268 if (bChannelChange &&
1269 (ah->chip_fullsleep != true) &&
1270 (ah->curchan != NULL) &&
1271 (chan->channel != ah->curchan->channel) &&
1272 ((chan->channelFlags & CHANNEL_ALL) ==
1273 (ah->curchan->channelFlags & CHANNEL_ALL)) &&
1274 (!AR_SREV_9280(ah) || AR_DEVID_7010(ah))) {
1276 if (ath9k_hw_channel_change(ah, chan)) {
1277 ath9k_hw_loadnf(ah, ah->curchan);
1278 ath9k_hw_start_nfcal(ah, true);
1279 if (AR_SREV_9271(ah))
1280 ar9002_hw_load_ani_reg(ah, chan);
1285 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1286 if (saveDefAntenna == 0)
1289 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1291 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1292 if (AR_SREV_9100(ah) ||
1293 (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)))
1294 tsf = ath9k_hw_gettsf64(ah);
1296 saveLedState = REG_READ(ah, AR_CFG_LED) &
1297 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1298 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1300 ath9k_hw_mark_phy_inactive(ah);
1302 ah->paprd_table_write_done = false;
1304 /* Only required on the first reset */
1305 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1307 AR9271_RESET_POWER_DOWN_CONTROL,
1308 AR9271_RADIO_RF_RST);
1312 if (!ath9k_hw_chip_reset(ah, chan)) {
1313 ath_err(common, "Chip reset failed\n");
1317 /* Only required on the first reset */
1318 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1319 ah->htc_reset_init = false;
1321 AR9271_RESET_POWER_DOWN_CONTROL,
1322 AR9271_GATE_MAC_CTL);
1328 ath9k_hw_settsf64(ah, tsf);
1330 if (AR_SREV_9280_20_OR_LATER(ah))
1331 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1333 if (!AR_SREV_9300_20_OR_LATER(ah))
1334 ar9002_hw_enable_async_fifo(ah);
1336 r = ath9k_hw_process_ini(ah, chan);
1341 * Some AR91xx SoC devices frequently fail to accept TSF writes
1342 * right after the chip reset. When that happens, write a new
1343 * value after the initvals have been applied, with an offset
1344 * based on measured time difference
1346 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1348 ath9k_hw_settsf64(ah, tsf);
1351 /* Setup MFP options for CCMP */
1352 if (AR_SREV_9280_20_OR_LATER(ah)) {
1353 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1354 * frames when constructing CCMP AAD. */
1355 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1357 ah->sw_mgmt_crypto = false;
1358 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1359 /* Disable hardware crypto for management frames */
1360 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1361 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1362 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1363 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1364 ah->sw_mgmt_crypto = true;
1366 ah->sw_mgmt_crypto = true;
1368 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1369 ath9k_hw_set_delta_slope(ah, chan);
1371 ath9k_hw_spur_mitigate_freq(ah, chan);
1372 ah->eep_ops->set_board_values(ah, chan);
1374 ENABLE_REGWRITE_BUFFER(ah);
1376 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1377 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
1379 | AR_STA_ID1_RTS_USE_DEF
1381 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1382 | ah->sta_id1_defaults);
1383 ath_hw_setbssidmask(common);
1384 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1385 ath9k_hw_write_associd(ah);
1386 REG_WRITE(ah, AR_ISR, ~0);
1387 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1389 REGWRITE_BUFFER_FLUSH(ah);
1391 ath9k_hw_set_operating_mode(ah, ah->opmode);
1393 r = ath9k_hw_rf_set_freq(ah, chan);
1397 ath9k_hw_set_clockrate(ah);
1399 ENABLE_REGWRITE_BUFFER(ah);
1401 for (i = 0; i < AR_NUM_DCU; i++)
1402 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1404 REGWRITE_BUFFER_FLUSH(ah);
1407 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
1408 ath9k_hw_resettxqueue(ah, i);
1410 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1411 ath9k_hw_ani_cache_ini_regs(ah);
1412 ath9k_hw_init_qos(ah);
1414 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1415 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
1417 ath9k_hw_init_global_settings(ah);
1419 if (!AR_SREV_9300_20_OR_LATER(ah)) {
1420 ar9002_hw_update_async_fifo(ah);
1421 ar9002_hw_enable_wep_aggregation(ah);
1424 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
1426 ath9k_hw_set_dma(ah);
1428 REG_WRITE(ah, AR_OBS, 8);
1430 if (ah->config.rx_intr_mitigation) {
1431 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
1432 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
1435 if (ah->config.tx_intr_mitigation) {
1436 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1437 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1440 ath9k_hw_init_bb(ah, chan);
1442 if (!ath9k_hw_init_cal(ah, chan))
1445 ENABLE_REGWRITE_BUFFER(ah);
1447 ath9k_hw_restore_chainmask(ah);
1448 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1450 REGWRITE_BUFFER_FLUSH(ah);
1453 * For big endian systems turn on swapping for descriptors
1455 if (AR_SREV_9100(ah)) {
1457 mask = REG_READ(ah, AR_CFG);
1458 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1459 ath_dbg(common, ATH_DBG_RESET,
1460 "CFG Byte Swap Set 0x%x\n", mask);
1463 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1464 REG_WRITE(ah, AR_CFG, mask);
1465 ath_dbg(common, ATH_DBG_RESET,
1466 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
1469 if (common->bus_ops->ath_bus_type == ATH_USB) {
1470 /* Configure AR9271 target WLAN */
1471 if (AR_SREV_9271(ah))
1472 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1474 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1478 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1482 if (ah->btcoex_hw.enabled)
1483 ath9k_hw_btcoex_enable(ah);
1485 if (AR_SREV_9300_20_OR_LATER(ah))
1486 ar9003_hw_bb_watchdog_config(ah);
1488 ath9k_hw_apply_gpio_override(ah);
1492 EXPORT_SYMBOL(ath9k_hw_reset);
1494 /******************************/
1495 /* Power Management (Chipset) */
1496 /******************************/
1499 * Notify Power Mgt is disabled in self-generated frames.
1500 * If requested, force chip to sleep.
1502 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
1504 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1507 * Clear the RTC force wake bit to allow the
1508 * mac to go to sleep.
1510 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1511 AR_RTC_FORCE_WAKE_EN);
1512 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1513 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1515 /* Shutdown chip. Active low */
1516 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah))
1517 REG_CLR_BIT(ah, (AR_RTC_RESET),
1521 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
1522 if (AR_SREV_9300_20_OR_LATER(ah))
1523 REG_WRITE(ah, AR_WA,
1524 ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1528 * Notify Power Management is enabled in self-generating
1529 * frames. If request, set power mode of chip to
1530 * auto/normal. Duration in units of 128us (1/8 TU).
1532 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
1534 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1536 struct ath9k_hw_capabilities *pCap = &ah->caps;
1538 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1539 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1540 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1541 AR_RTC_FORCE_WAKE_ON_INT);
1544 * Clear the RTC force wake bit to allow the
1545 * mac to go to sleep.
1547 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1548 AR_RTC_FORCE_WAKE_EN);
1552 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
1553 if (AR_SREV_9300_20_OR_LATER(ah))
1554 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1557 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
1562 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
1563 if (AR_SREV_9300_20_OR_LATER(ah)) {
1564 REG_WRITE(ah, AR_WA, ah->WARegVal);
1569 if ((REG_READ(ah, AR_RTC_STATUS) &
1570 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1571 if (ath9k_hw_set_reset_reg(ah,
1572 ATH9K_RESET_POWER_ON) != true) {
1575 if (!AR_SREV_9300_20_OR_LATER(ah))
1576 ath9k_hw_init_pll(ah, NULL);
1578 if (AR_SREV_9100(ah))
1579 REG_SET_BIT(ah, AR_RTC_RESET,
1582 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1583 AR_RTC_FORCE_WAKE_EN);
1586 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1587 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1588 if (val == AR_RTC_STATUS_ON)
1591 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1592 AR_RTC_FORCE_WAKE_EN);
1595 ath_err(ath9k_hw_common(ah),
1596 "Failed to wakeup in %uus\n",
1597 POWER_UP_TIME / 20);
1602 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1607 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
1609 struct ath_common *common = ath9k_hw_common(ah);
1610 int status = true, setChip = true;
1611 static const char *modes[] = {
1618 if (ah->power_mode == mode)
1621 ath_dbg(common, ATH_DBG_RESET, "%s -> %s\n",
1622 modes[ah->power_mode], modes[mode]);
1625 case ATH9K_PM_AWAKE:
1626 status = ath9k_hw_set_power_awake(ah, setChip);
1628 case ATH9K_PM_FULL_SLEEP:
1629 ath9k_set_power_sleep(ah, setChip);
1630 ah->chip_fullsleep = true;
1632 case ATH9K_PM_NETWORK_SLEEP:
1633 ath9k_set_power_network_sleep(ah, setChip);
1636 ath_err(common, "Unknown power mode %u\n", mode);
1639 ah->power_mode = mode;
1642 * XXX: If this warning never comes up after a while then
1643 * simply keep the ATH_DBG_WARN_ON_ONCE() but make
1644 * ath9k_hw_setpower() return type void.
1647 if (!(ah->ah_flags & AH_UNPLUGGED))
1648 ATH_DBG_WARN_ON_ONCE(!status);
1652 EXPORT_SYMBOL(ath9k_hw_setpower);
1654 /*******************/
1655 /* Beacon Handling */
1656 /*******************/
1658 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
1662 ENABLE_REGWRITE_BUFFER(ah);
1664 switch (ah->opmode) {
1665 case NL80211_IFTYPE_ADHOC:
1666 case NL80211_IFTYPE_MESH_POINT:
1667 REG_SET_BIT(ah, AR_TXCFG,
1668 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
1669 REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon +
1670 TU_TO_USEC(ah->atim_window ? ah->atim_window : 1));
1671 flags |= AR_NDP_TIMER_EN;
1672 case NL80211_IFTYPE_AP:
1673 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
1674 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
1675 TU_TO_USEC(ah->config.dma_beacon_response_time));
1676 REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
1677 TU_TO_USEC(ah->config.sw_beacon_response_time));
1679 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
1682 ath_dbg(ath9k_hw_common(ah), ATH_DBG_BEACON,
1683 "%s: unsupported opmode: %d\n",
1684 __func__, ah->opmode);
1689 REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
1690 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
1691 REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
1692 REG_WRITE(ah, AR_NDP_PERIOD, beacon_period);
1694 REGWRITE_BUFFER_FLUSH(ah);
1696 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
1698 EXPORT_SYMBOL(ath9k_hw_beaconinit);
1700 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
1701 const struct ath9k_beacon_state *bs)
1703 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
1704 struct ath9k_hw_capabilities *pCap = &ah->caps;
1705 struct ath_common *common = ath9k_hw_common(ah);
1707 ENABLE_REGWRITE_BUFFER(ah);
1709 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
1711 REG_WRITE(ah, AR_BEACON_PERIOD,
1712 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1713 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
1714 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1716 REGWRITE_BUFFER_FLUSH(ah);
1718 REG_RMW_FIELD(ah, AR_RSSI_THR,
1719 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
1721 beaconintval = bs->bs_intval & ATH9K_BEACON_PERIOD;
1723 if (bs->bs_sleepduration > beaconintval)
1724 beaconintval = bs->bs_sleepduration;
1726 dtimperiod = bs->bs_dtimperiod;
1727 if (bs->bs_sleepduration > dtimperiod)
1728 dtimperiod = bs->bs_sleepduration;
1730 if (beaconintval == dtimperiod)
1731 nextTbtt = bs->bs_nextdtim;
1733 nextTbtt = bs->bs_nexttbtt;
1735 ath_dbg(common, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
1736 ath_dbg(common, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
1737 ath_dbg(common, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
1738 ath_dbg(common, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
1740 ENABLE_REGWRITE_BUFFER(ah);
1742 REG_WRITE(ah, AR_NEXT_DTIM,
1743 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
1744 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
1746 REG_WRITE(ah, AR_SLEEP1,
1747 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
1748 | AR_SLEEP1_ASSUME_DTIM);
1750 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
1751 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
1753 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
1755 REG_WRITE(ah, AR_SLEEP2,
1756 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
1758 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
1759 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
1761 REGWRITE_BUFFER_FLUSH(ah);
1763 REG_SET_BIT(ah, AR_TIMER_MODE,
1764 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
1767 /* TSF Out of Range Threshold */
1768 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
1770 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
1772 /*******************/
1773 /* HW Capabilities */
1774 /*******************/
1776 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
1778 struct ath9k_hw_capabilities *pCap = &ah->caps;
1779 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1780 struct ath_common *common = ath9k_hw_common(ah);
1781 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
1783 u16 capField = 0, eeval;
1784 u8 ant_div_ctl1, tx_chainmask, rx_chainmask;
1786 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
1787 regulatory->current_rd = eeval;
1789 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_1);
1790 if (AR_SREV_9285_12_OR_LATER(ah))
1791 eeval |= AR9285_RDEXT_DEFAULT;
1792 regulatory->current_rd_ext = eeval;
1794 capField = ah->eep_ops->get_eeprom(ah, EEP_OP_CAP);
1796 if (ah->opmode != NL80211_IFTYPE_AP &&
1797 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
1798 if (regulatory->current_rd == 0x64 ||
1799 regulatory->current_rd == 0x65)
1800 regulatory->current_rd += 5;
1801 else if (regulatory->current_rd == 0x41)
1802 regulatory->current_rd = 0x43;
1803 ath_dbg(common, ATH_DBG_REGULATORY,
1804 "regdomain mapped to 0x%x\n", regulatory->current_rd);
1807 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
1808 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
1810 "no band has been marked as supported in EEPROM\n");
1814 if (eeval & AR5416_OPFLAGS_11A)
1815 pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
1817 if (eeval & AR5416_OPFLAGS_11G)
1818 pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
1820 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
1822 * For AR9271 we will temporarilly uses the rx chainmax as read from
1825 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
1826 !(eeval & AR5416_OPFLAGS_11A) &&
1827 !(AR_SREV_9271(ah)))
1828 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
1829 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
1830 else if (AR_SREV_9100(ah))
1831 pCap->rx_chainmask = 0x7;
1833 /* Use rx_chainmask from EEPROM. */
1834 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
1836 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
1838 /* enable key search for every frame in an aggregate */
1839 if (AR_SREV_9300_20_OR_LATER(ah))
1840 ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
1842 common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
1844 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
1845 pCap->hw_caps |= ATH9K_HW_CAP_HT;
1847 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
1849 if (AR_SREV_9271(ah))
1850 pCap->num_gpio_pins = AR9271_NUM_GPIO;
1851 else if (AR_DEVID_7010(ah))
1852 pCap->num_gpio_pins = AR7010_NUM_GPIO;
1853 else if (AR_SREV_9285_12_OR_LATER(ah))
1854 pCap->num_gpio_pins = AR9285_NUM_GPIO;
1855 else if (AR_SREV_9280_20_OR_LATER(ah))
1856 pCap->num_gpio_pins = AR928X_NUM_GPIO;
1858 pCap->num_gpio_pins = AR_NUM_GPIO;
1860 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
1861 pCap->hw_caps |= ATH9K_HW_CAP_CST;
1862 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
1864 pCap->rts_aggr_limit = (8 * 1024);
1867 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
1868 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
1869 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
1871 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
1872 ah->rfkill_polarity =
1873 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
1875 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
1878 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
1879 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
1881 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
1883 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
1884 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
1886 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
1888 if (AR_SREV_9280_20_OR_LATER(ah) && common->btcoex_enabled) {
1889 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
1890 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
1892 if (AR_SREV_9285(ah)) {
1893 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
1894 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
1896 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
1899 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
1902 if (AR_SREV_9300_20_OR_LATER(ah)) {
1903 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
1904 if (!AR_SREV_9485(ah))
1905 pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
1907 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
1908 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
1909 pCap->rx_status_len = sizeof(struct ar9003_rxs);
1910 pCap->tx_desc_len = sizeof(struct ar9003_txc);
1911 pCap->txs_len = sizeof(struct ar9003_txs);
1912 if (!ah->config.paprd_disable &&
1913 ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
1914 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
1916 pCap->tx_desc_len = sizeof(struct ath_desc);
1917 if (AR_SREV_9280_20(ah) &&
1918 ((ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) <=
1919 AR5416_EEP_MINOR_VER_16) ||
1920 ah->eep_ops->get_eeprom(ah, EEP_FSTCLK_5G)))
1921 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
1924 if (AR_SREV_9300_20_OR_LATER(ah))
1925 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
1927 if (AR_SREV_9300_20_OR_LATER(ah))
1928 ah->ent_mode = REG_READ(ah, AR_ENT_OTP);
1930 if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah))
1931 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
1933 if (AR_SREV_9285(ah))
1934 if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) {
1936 ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
1937 if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1))
1938 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
1940 if (AR_SREV_9300_20_OR_LATER(ah)) {
1941 if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
1942 pCap->hw_caps |= ATH9K_HW_CAP_APM;
1947 if (AR_SREV_9485_10(ah)) {
1948 pCap->pcie_lcr_extsync_en = true;
1949 pCap->pcie_lcr_offset = 0x80;
1952 tx_chainmask = pCap->tx_chainmask;
1953 rx_chainmask = pCap->rx_chainmask;
1954 while (tx_chainmask || rx_chainmask) {
1955 if (tx_chainmask & BIT(0))
1956 pCap->max_txchains++;
1957 if (rx_chainmask & BIT(0))
1958 pCap->max_rxchains++;
1967 /****************************/
1968 /* GPIO / RFKILL / Antennae */
1969 /****************************/
1971 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
1975 u32 gpio_shift, tmp;
1978 addr = AR_GPIO_OUTPUT_MUX3;
1980 addr = AR_GPIO_OUTPUT_MUX2;
1982 addr = AR_GPIO_OUTPUT_MUX1;
1984 gpio_shift = (gpio % 6) * 5;
1986 if (AR_SREV_9280_20_OR_LATER(ah)
1987 || (addr != AR_GPIO_OUTPUT_MUX1)) {
1988 REG_RMW(ah, addr, (type << gpio_shift),
1989 (0x1f << gpio_shift));
1991 tmp = REG_READ(ah, addr);
1992 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
1993 tmp &= ~(0x1f << gpio_shift);
1994 tmp |= (type << gpio_shift);
1995 REG_WRITE(ah, addr, tmp);
1999 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2003 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2005 if (AR_DEVID_7010(ah)) {
2007 REG_RMW(ah, AR7010_GPIO_OE,
2008 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2009 (AR7010_GPIO_OE_MASK << gpio_shift));
2013 gpio_shift = gpio << 1;
2016 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2017 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2019 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2021 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2023 #define MS_REG_READ(x, y) \
2024 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2026 if (gpio >= ah->caps.num_gpio_pins)
2029 if (AR_DEVID_7010(ah)) {
2031 val = REG_READ(ah, AR7010_GPIO_IN);
2032 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2033 } else if (AR_SREV_9300_20_OR_LATER(ah))
2034 return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
2035 AR_GPIO_BIT(gpio)) != 0;
2036 else if (AR_SREV_9271(ah))
2037 return MS_REG_READ(AR9271, gpio) != 0;
2038 else if (AR_SREV_9287_11_OR_LATER(ah))
2039 return MS_REG_READ(AR9287, gpio) != 0;
2040 else if (AR_SREV_9285_12_OR_LATER(ah))
2041 return MS_REG_READ(AR9285, gpio) != 0;
2042 else if (AR_SREV_9280_20_OR_LATER(ah))
2043 return MS_REG_READ(AR928X, gpio) != 0;
2045 return MS_REG_READ(AR, gpio) != 0;
2047 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2049 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2054 if (AR_DEVID_7010(ah)) {
2056 REG_RMW(ah, AR7010_GPIO_OE,
2057 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2058 (AR7010_GPIO_OE_MASK << gpio_shift));
2062 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2063 gpio_shift = 2 * gpio;
2066 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2067 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2069 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2071 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2073 if (AR_DEVID_7010(ah)) {
2075 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2080 if (AR_SREV_9271(ah))
2083 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2086 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2088 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
2090 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
2092 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
2094 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2096 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2098 EXPORT_SYMBOL(ath9k_hw_setantenna);
2100 /*********************/
2101 /* General Operation */
2102 /*********************/
2104 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2106 u32 bits = REG_READ(ah, AR_RX_FILTER);
2107 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2109 if (phybits & AR_PHY_ERR_RADAR)
2110 bits |= ATH9K_RX_FILTER_PHYRADAR;
2111 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2112 bits |= ATH9K_RX_FILTER_PHYERR;
2116 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2118 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2122 ENABLE_REGWRITE_BUFFER(ah);
2124 REG_WRITE(ah, AR_RX_FILTER, bits);
2127 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2128 phybits |= AR_PHY_ERR_RADAR;
2129 if (bits & ATH9K_RX_FILTER_PHYERR)
2130 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2131 REG_WRITE(ah, AR_PHY_ERR, phybits);
2134 REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2136 REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2138 REGWRITE_BUFFER_FLUSH(ah);
2140 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2142 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2144 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2147 ath9k_hw_init_pll(ah, NULL);
2150 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2152 bool ath9k_hw_disable(struct ath_hw *ah)
2154 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2157 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2160 ath9k_hw_init_pll(ah, NULL);
2163 EXPORT_SYMBOL(ath9k_hw_disable);
2165 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
2167 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2168 struct ath9k_channel *chan = ah->curchan;
2169 struct ieee80211_channel *channel = chan->chan;
2171 regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
2173 ah->eep_ops->set_txpower(ah, chan,
2174 ath9k_regd_get_ctl(regulatory, chan),
2175 channel->max_antenna_gain * 2,
2176 channel->max_power * 2,
2177 min((u32) MAX_RATE_POWER,
2178 (u32) regulatory->power_limit), test);
2180 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2182 void ath9k_hw_setopmode(struct ath_hw *ah)
2184 ath9k_hw_set_operating_mode(ah, ah->opmode);
2186 EXPORT_SYMBOL(ath9k_hw_setopmode);
2188 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2190 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2191 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2193 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2195 void ath9k_hw_write_associd(struct ath_hw *ah)
2197 struct ath_common *common = ath9k_hw_common(ah);
2199 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2200 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2201 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2203 EXPORT_SYMBOL(ath9k_hw_write_associd);
2205 #define ATH9K_MAX_TSF_READ 10
2207 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2209 u32 tsf_lower, tsf_upper1, tsf_upper2;
2212 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2213 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2214 tsf_lower = REG_READ(ah, AR_TSF_L32);
2215 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2216 if (tsf_upper2 == tsf_upper1)
2218 tsf_upper1 = tsf_upper2;
2221 WARN_ON( i == ATH9K_MAX_TSF_READ );
2223 return (((u64)tsf_upper1 << 32) | tsf_lower);
2225 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2227 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2229 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2230 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2232 EXPORT_SYMBOL(ath9k_hw_settsf64);
2234 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2236 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2237 AH_TSF_WRITE_TIMEOUT))
2238 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
2239 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2241 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2243 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2245 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
2248 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2250 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2252 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2254 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2256 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2259 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2260 macmode = AR_2040_JOINED_RX_CLEAR;
2264 REG_WRITE(ah, AR_2040_MODE, macmode);
2267 /* HW Generic timers configuration */
2269 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2271 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2272 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2273 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2274 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2275 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2276 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2277 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2278 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2279 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2280 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2281 AR_NDP2_TIMER_MODE, 0x0002},
2282 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2283 AR_NDP2_TIMER_MODE, 0x0004},
2284 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2285 AR_NDP2_TIMER_MODE, 0x0008},
2286 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2287 AR_NDP2_TIMER_MODE, 0x0010},
2288 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2289 AR_NDP2_TIMER_MODE, 0x0020},
2290 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2291 AR_NDP2_TIMER_MODE, 0x0040},
2292 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2293 AR_NDP2_TIMER_MODE, 0x0080}
2296 /* HW generic timer primitives */
2298 /* compute and clear index of rightmost 1 */
2299 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2309 return timer_table->gen_timer_index[b];
2312 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2314 return REG_READ(ah, AR_TSF_L32);
2316 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2318 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2319 void (*trigger)(void *),
2320 void (*overflow)(void *),
2324 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2325 struct ath_gen_timer *timer;
2327 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2329 if (timer == NULL) {
2330 ath_err(ath9k_hw_common(ah),
2331 "Failed to allocate memory for hw timer[%d]\n",
2336 /* allocate a hardware generic timer slot */
2337 timer_table->timers[timer_index] = timer;
2338 timer->index = timer_index;
2339 timer->trigger = trigger;
2340 timer->overflow = overflow;
2345 EXPORT_SYMBOL(ath_gen_timer_alloc);
2347 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2348 struct ath_gen_timer *timer,
2352 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2355 BUG_ON(!timer_period);
2357 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2359 tsf = ath9k_hw_gettsf32(ah);
2361 ath_dbg(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
2362 "current tsf %x period %x timer_next %x\n",
2363 tsf, timer_period, timer_next);
2366 * Pull timer_next forward if the current TSF already passed it
2367 * because of software latency
2369 if (timer_next < tsf)
2370 timer_next = tsf + timer_period;
2373 * Program generic timer registers
2375 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2377 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2379 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2380 gen_tmr_configuration[timer->index].mode_mask);
2382 /* Enable both trigger and thresh interrupt masks */
2383 REG_SET_BIT(ah, AR_IMR_S5,
2384 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2385 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2387 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2389 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2391 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2393 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2394 (timer->index >= ATH_MAX_GEN_TIMER)) {
2398 /* Clear generic timer enable bits. */
2399 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2400 gen_tmr_configuration[timer->index].mode_mask);
2402 /* Disable both trigger and thresh interrupt masks */
2403 REG_CLR_BIT(ah, AR_IMR_S5,
2404 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2405 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2407 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
2409 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
2411 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2413 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2415 /* free the hardware generic timer slot */
2416 timer_table->timers[timer->index] = NULL;
2419 EXPORT_SYMBOL(ath_gen_timer_free);
2422 * Generic Timer Interrupts handling
2424 void ath_gen_timer_isr(struct ath_hw *ah)
2426 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2427 struct ath_gen_timer *timer;
2428 struct ath_common *common = ath9k_hw_common(ah);
2429 u32 trigger_mask, thresh_mask, index;
2431 /* get hardware generic timer interrupt status */
2432 trigger_mask = ah->intr_gen_timer_trigger;
2433 thresh_mask = ah->intr_gen_timer_thresh;
2434 trigger_mask &= timer_table->timer_mask.val;
2435 thresh_mask &= timer_table->timer_mask.val;
2437 trigger_mask &= ~thresh_mask;
2439 while (thresh_mask) {
2440 index = rightmost_index(timer_table, &thresh_mask);
2441 timer = timer_table->timers[index];
2443 ath_dbg(common, ATH_DBG_HWTIMER,
2444 "TSF overflow for Gen timer %d\n", index);
2445 timer->overflow(timer->arg);
2448 while (trigger_mask) {
2449 index = rightmost_index(timer_table, &trigger_mask);
2450 timer = timer_table->timers[index];
2452 ath_dbg(common, ATH_DBG_HWTIMER,
2453 "Gen timer[%d] trigger\n", index);
2454 timer->trigger(timer->arg);
2457 EXPORT_SYMBOL(ath_gen_timer_isr);
2463 void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2465 ah->htc_reset_init = true;
2467 EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2472 } ath_mac_bb_names[] = {
2473 /* Devices with external radios */
2474 { AR_SREV_VERSION_5416_PCI, "5416" },
2475 { AR_SREV_VERSION_5416_PCIE, "5418" },
2476 { AR_SREV_VERSION_9100, "9100" },
2477 { AR_SREV_VERSION_9160, "9160" },
2478 /* Single-chip solutions */
2479 { AR_SREV_VERSION_9280, "9280" },
2480 { AR_SREV_VERSION_9285, "9285" },
2481 { AR_SREV_VERSION_9287, "9287" },
2482 { AR_SREV_VERSION_9271, "9271" },
2483 { AR_SREV_VERSION_9300, "9300" },
2484 { AR_SREV_VERSION_9485, "9485" },
2487 /* For devices with external radios */
2491 } ath_rf_names[] = {
2493 { AR_RAD5133_SREV_MAJOR, "5133" },
2494 { AR_RAD5122_SREV_MAJOR, "5122" },
2495 { AR_RAD2133_SREV_MAJOR, "2133" },
2496 { AR_RAD2122_SREV_MAJOR, "2122" }
2500 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2502 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2506 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
2507 if (ath_mac_bb_names[i].version == mac_bb_version) {
2508 return ath_mac_bb_names[i].name;
2516 * Return the RF name. "????" is returned if the RF is unknown.
2517 * Used for devices with external radios.
2519 static const char *ath9k_hw_rf_name(u16 rf_version)
2523 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
2524 if (ath_rf_names[i].version == rf_version) {
2525 return ath_rf_names[i].name;
2532 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
2536 /* chipsets >= AR9280 are single-chip */
2537 if (AR_SREV_9280_20_OR_LATER(ah)) {
2538 used = snprintf(hw_name, len,
2539 "Atheros AR%s Rev:%x",
2540 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2541 ah->hw_version.macRev);
2544 used = snprintf(hw_name, len,
2545 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2546 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2547 ah->hw_version.macRev,
2548 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
2549 AR_RADIO_SREV_MAJOR)),
2550 ah->hw_version.phyRev);
2553 hw_name[used] = '\0';
2555 EXPORT_SYMBOL(ath9k_hw_name);