2 * Copyright (c) 2008-2011 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 <linux/module.h>
20 #include <asm/unaligned.h>
25 #include "ar9003_mac.h"
26 #include "ar9003_mci.h"
27 #include "ar9003_phy.h"
31 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
33 MODULE_AUTHOR("Atheros Communications");
34 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
35 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
36 MODULE_LICENSE("Dual BSD/GPL");
38 static int __init ath9k_init(void)
42 module_init(ath9k_init);
44 static void __exit ath9k_exit(void)
48 module_exit(ath9k_exit);
50 /* Private hardware callbacks */
52 static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
54 ath9k_hw_private_ops(ah)->init_cal_settings(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 #ifdef CONFIG_ATH9K_DEBUGFS
86 void ath9k_debug_sync_cause(struct ath_common *common, u32 sync_cause)
88 struct ath_softc *sc = common->priv;
90 sc->debug.stats.istats.sync_cause_all++;
91 if (sync_cause & AR_INTR_SYNC_RTC_IRQ)
92 sc->debug.stats.istats.sync_rtc_irq++;
93 if (sync_cause & AR_INTR_SYNC_MAC_IRQ)
94 sc->debug.stats.istats.sync_mac_irq++;
95 if (sync_cause & AR_INTR_SYNC_EEPROM_ILLEGAL_ACCESS)
96 sc->debug.stats.istats.eeprom_illegal_access++;
97 if (sync_cause & AR_INTR_SYNC_APB_TIMEOUT)
98 sc->debug.stats.istats.apb_timeout++;
99 if (sync_cause & AR_INTR_SYNC_PCI_MODE_CONFLICT)
100 sc->debug.stats.istats.pci_mode_conflict++;
101 if (sync_cause & AR_INTR_SYNC_HOST1_FATAL)
102 sc->debug.stats.istats.host1_fatal++;
103 if (sync_cause & AR_INTR_SYNC_HOST1_PERR)
104 sc->debug.stats.istats.host1_perr++;
105 if (sync_cause & AR_INTR_SYNC_TRCV_FIFO_PERR)
106 sc->debug.stats.istats.trcv_fifo_perr++;
107 if (sync_cause & AR_INTR_SYNC_RADM_CPL_EP)
108 sc->debug.stats.istats.radm_cpl_ep++;
109 if (sync_cause & AR_INTR_SYNC_RADM_CPL_DLLP_ABORT)
110 sc->debug.stats.istats.radm_cpl_dllp_abort++;
111 if (sync_cause & AR_INTR_SYNC_RADM_CPL_TLP_ABORT)
112 sc->debug.stats.istats.radm_cpl_tlp_abort++;
113 if (sync_cause & AR_INTR_SYNC_RADM_CPL_ECRC_ERR)
114 sc->debug.stats.istats.radm_cpl_ecrc_err++;
115 if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT)
116 sc->debug.stats.istats.radm_cpl_timeout++;
117 if (sync_cause & AR_INTR_SYNC_LOCAL_TIMEOUT)
118 sc->debug.stats.istats.local_timeout++;
119 if (sync_cause & AR_INTR_SYNC_PM_ACCESS)
120 sc->debug.stats.istats.pm_access++;
121 if (sync_cause & AR_INTR_SYNC_MAC_AWAKE)
122 sc->debug.stats.istats.mac_awake++;
123 if (sync_cause & AR_INTR_SYNC_MAC_ASLEEP)
124 sc->debug.stats.istats.mac_asleep++;
125 if (sync_cause & AR_INTR_SYNC_MAC_SLEEP_ACCESS)
126 sc->debug.stats.istats.mac_sleep_access++;
131 static void ath9k_hw_set_clockrate(struct ath_hw *ah)
133 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
134 struct ath_common *common = ath9k_hw_common(ah);
135 unsigned int clockrate;
137 /* AR9287 v1.3+ uses async FIFO and runs the MAC at 117 MHz */
138 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah))
140 else if (!ah->curchan) /* should really check for CCK instead */
141 clockrate = ATH9K_CLOCK_RATE_CCK;
142 else if (conf->chandef.chan->band == IEEE80211_BAND_2GHZ)
143 clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
144 else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
145 clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
147 clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
149 if (conf_is_ht40(conf))
153 if (IS_CHAN_HALF_RATE(ah->curchan))
155 if (IS_CHAN_QUARTER_RATE(ah->curchan))
159 common->clockrate = clockrate;
162 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
164 struct ath_common *common = ath9k_hw_common(ah);
166 return usecs * common->clockrate;
169 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
173 BUG_ON(timeout < AH_TIME_QUANTUM);
175 for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
176 if ((REG_READ(ah, reg) & mask) == val)
179 udelay(AH_TIME_QUANTUM);
182 ath_dbg(ath9k_hw_common(ah), ANY,
183 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
184 timeout, reg, REG_READ(ah, reg), mask, val);
188 EXPORT_SYMBOL(ath9k_hw_wait);
190 void ath9k_hw_synth_delay(struct ath_hw *ah, struct ath9k_channel *chan,
194 hw_delay = (4 * hw_delay) / 22;
198 if (IS_CHAN_HALF_RATE(chan))
200 else if (IS_CHAN_QUARTER_RATE(chan))
203 udelay(hw_delay + BASE_ACTIVATE_DELAY);
206 void ath9k_hw_write_array(struct ath_hw *ah, const struct ar5416IniArray *array,
207 int column, unsigned int *writecnt)
211 ENABLE_REGWRITE_BUFFER(ah);
212 for (r = 0; r < array->ia_rows; r++) {
213 REG_WRITE(ah, INI_RA(array, r, 0),
214 INI_RA(array, r, column));
217 REGWRITE_BUFFER_FLUSH(ah);
220 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
225 for (i = 0, retval = 0; i < n; i++) {
226 retval = (retval << 1) | (val & 1);
232 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
234 u32 frameLen, u16 rateix,
237 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
243 case WLAN_RC_PHY_CCK:
244 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
247 numBits = frameLen << 3;
248 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
250 case WLAN_RC_PHY_OFDM:
251 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
252 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
253 numBits = OFDM_PLCP_BITS + (frameLen << 3);
254 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
255 txTime = OFDM_SIFS_TIME_QUARTER
256 + OFDM_PREAMBLE_TIME_QUARTER
257 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
258 } else if (ah->curchan &&
259 IS_CHAN_HALF_RATE(ah->curchan)) {
260 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
261 numBits = OFDM_PLCP_BITS + (frameLen << 3);
262 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
263 txTime = OFDM_SIFS_TIME_HALF +
264 OFDM_PREAMBLE_TIME_HALF
265 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
267 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
268 numBits = OFDM_PLCP_BITS + (frameLen << 3);
269 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
270 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
271 + (numSymbols * OFDM_SYMBOL_TIME);
275 ath_err(ath9k_hw_common(ah),
276 "Unknown phy %u (rate ix %u)\n", phy, rateix);
283 EXPORT_SYMBOL(ath9k_hw_computetxtime);
285 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
286 struct ath9k_channel *chan,
287 struct chan_centers *centers)
291 if (!IS_CHAN_HT40(chan)) {
292 centers->ctl_center = centers->ext_center =
293 centers->synth_center = chan->channel;
297 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
298 (chan->chanmode == CHANNEL_G_HT40PLUS)) {
299 centers->synth_center =
300 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
303 centers->synth_center =
304 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
308 centers->ctl_center =
309 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
310 /* 25 MHz spacing is supported by hw but not on upper layers */
311 centers->ext_center =
312 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
319 static void ath9k_hw_read_revisions(struct ath_hw *ah)
323 switch (ah->hw_version.devid) {
324 case AR5416_AR9100_DEVID:
325 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
327 case AR9300_DEVID_AR9330:
328 ah->hw_version.macVersion = AR_SREV_VERSION_9330;
329 if (ah->get_mac_revision) {
330 ah->hw_version.macRev = ah->get_mac_revision();
332 val = REG_READ(ah, AR_SREV);
333 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
336 case AR9300_DEVID_AR9340:
337 ah->hw_version.macVersion = AR_SREV_VERSION_9340;
338 val = REG_READ(ah, AR_SREV);
339 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
341 case AR9300_DEVID_QCA955X:
342 ah->hw_version.macVersion = AR_SREV_VERSION_9550;
346 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
349 val = REG_READ(ah, AR_SREV);
350 ah->hw_version.macVersion =
351 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
352 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
354 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
355 ah->is_pciexpress = true;
357 ah->is_pciexpress = (val &
358 AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
360 if (!AR_SREV_9100(ah))
361 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
363 ah->hw_version.macRev = val & AR_SREV_REVISION;
365 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
366 ah->is_pciexpress = true;
370 /************************************/
371 /* HW Attach, Detach, Init Routines */
372 /************************************/
374 static void ath9k_hw_disablepcie(struct ath_hw *ah)
376 if (!AR_SREV_5416(ah))
379 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
380 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
381 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
382 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
383 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
384 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
385 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
386 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
387 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
389 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
392 /* This should work for all families including legacy */
393 static bool ath9k_hw_chip_test(struct ath_hw *ah)
395 struct ath_common *common = ath9k_hw_common(ah);
396 u32 regAddr[2] = { AR_STA_ID0 };
398 static const u32 patternData[4] = {
399 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999
403 if (!AR_SREV_9300_20_OR_LATER(ah)) {
405 regAddr[1] = AR_PHY_BASE + (8 << 2);
409 for (i = 0; i < loop_max; i++) {
410 u32 addr = regAddr[i];
413 regHold[i] = REG_READ(ah, addr);
414 for (j = 0; j < 0x100; j++) {
415 wrData = (j << 16) | j;
416 REG_WRITE(ah, addr, wrData);
417 rdData = REG_READ(ah, addr);
418 if (rdData != wrData) {
420 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
421 addr, wrData, rdData);
425 for (j = 0; j < 4; j++) {
426 wrData = patternData[j];
427 REG_WRITE(ah, addr, wrData);
428 rdData = REG_READ(ah, addr);
429 if (wrData != rdData) {
431 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
432 addr, wrData, rdData);
436 REG_WRITE(ah, regAddr[i], regHold[i]);
443 static void ath9k_hw_init_config(struct ath_hw *ah)
447 ah->config.dma_beacon_response_time = 1;
448 ah->config.sw_beacon_response_time = 6;
449 ah->config.additional_swba_backoff = 0;
450 ah->config.ack_6mb = 0x0;
451 ah->config.cwm_ignore_extcca = 0;
452 ah->config.pcie_clock_req = 0;
453 ah->config.pcie_waen = 0;
454 ah->config.analog_shiftreg = 1;
456 for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
457 ah->config.spurchans[i][0] = AR_NO_SPUR;
458 ah->config.spurchans[i][1] = AR_NO_SPUR;
461 ah->config.rx_intr_mitigation = true;
462 ah->config.pcieSerDesWrite = true;
465 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
466 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
467 * This means we use it for all AR5416 devices, and the few
468 * minor PCI AR9280 devices out there.
470 * Serialization is required because these devices do not handle
471 * well the case of two concurrent reads/writes due to the latency
472 * involved. During one read/write another read/write can be issued
473 * on another CPU while the previous read/write may still be working
474 * on our hardware, if we hit this case the hardware poops in a loop.
475 * We prevent this by serializing reads and writes.
477 * This issue is not present on PCI-Express devices or pre-AR5416
478 * devices (legacy, 802.11abg).
480 if (num_possible_cpus() > 1)
481 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
484 static void ath9k_hw_init_defaults(struct ath_hw *ah)
486 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
488 regulatory->country_code = CTRY_DEFAULT;
489 regulatory->power_limit = MAX_RATE_POWER;
491 ah->hw_version.magic = AR5416_MAGIC;
492 ah->hw_version.subvendorid = 0;
495 ah->sta_id1_defaults =
496 AR_STA_ID1_CRPT_MIC_ENABLE |
497 AR_STA_ID1_MCAST_KSRCH;
498 if (AR_SREV_9100(ah))
499 ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX;
500 ah->slottime = ATH9K_SLOT_TIME_9;
501 ah->globaltxtimeout = (u32) -1;
502 ah->power_mode = ATH9K_PM_UNDEFINED;
503 ah->htc_reset_init = true;
506 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
508 struct ath_common *common = ath9k_hw_common(ah);
512 static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
515 for (i = 0; i < 3; i++) {
516 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
518 common->macaddr[2 * i] = eeval >> 8;
519 common->macaddr[2 * i + 1] = eeval & 0xff;
521 if (sum == 0 || sum == 0xffff * 3)
522 return -EADDRNOTAVAIL;
527 static int ath9k_hw_post_init(struct ath_hw *ah)
529 struct ath_common *common = ath9k_hw_common(ah);
532 if (common->bus_ops->ath_bus_type != ATH_USB) {
533 if (!ath9k_hw_chip_test(ah))
537 if (!AR_SREV_9300_20_OR_LATER(ah)) {
538 ecode = ar9002_hw_rf_claim(ah);
543 ecode = ath9k_hw_eeprom_init(ah);
547 ath_dbg(ath9k_hw_common(ah), CONFIG, "Eeprom VER: %d, REV: %d\n",
548 ah->eep_ops->get_eeprom_ver(ah),
549 ah->eep_ops->get_eeprom_rev(ah));
551 ath9k_hw_ani_init(ah);
556 static int ath9k_hw_attach_ops(struct ath_hw *ah)
558 if (!AR_SREV_9300_20_OR_LATER(ah))
559 return ar9002_hw_attach_ops(ah);
561 ar9003_hw_attach_ops(ah);
565 /* Called for all hardware families */
566 static int __ath9k_hw_init(struct ath_hw *ah)
568 struct ath_common *common = ath9k_hw_common(ah);
571 ath9k_hw_read_revisions(ah);
574 * Read back AR_WA into a permanent copy and set bits 14 and 17.
575 * We need to do this to avoid RMW of this register. We cannot
576 * read the reg when chip is asleep.
578 ah->WARegVal = REG_READ(ah, AR_WA);
579 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
580 AR_WA_ASPM_TIMER_BASED_DISABLE);
582 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
583 ath_err(common, "Couldn't reset chip\n");
587 if (AR_SREV_9462(ah))
588 ah->WARegVal &= ~AR_WA_D3_L1_DISABLE;
590 if (AR_SREV_9565(ah)) {
591 ah->WARegVal |= AR_WA_BIT22;
592 REG_WRITE(ah, AR_WA, ah->WARegVal);
595 ath9k_hw_init_defaults(ah);
596 ath9k_hw_init_config(ah);
598 r = ath9k_hw_attach_ops(ah);
602 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
603 ath_err(common, "Couldn't wakeup chip\n");
607 if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
608 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
609 ((AR_SREV_9160(ah) || AR_SREV_9280(ah) || AR_SREV_9287(ah)) &&
610 !ah->is_pciexpress)) {
611 ah->config.serialize_regmode =
614 ah->config.serialize_regmode =
619 ath_dbg(common, RESET, "serialize_regmode is %d\n",
620 ah->config.serialize_regmode);
622 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
623 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
625 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
627 switch (ah->hw_version.macVersion) {
628 case AR_SREV_VERSION_5416_PCI:
629 case AR_SREV_VERSION_5416_PCIE:
630 case AR_SREV_VERSION_9160:
631 case AR_SREV_VERSION_9100:
632 case AR_SREV_VERSION_9280:
633 case AR_SREV_VERSION_9285:
634 case AR_SREV_VERSION_9287:
635 case AR_SREV_VERSION_9271:
636 case AR_SREV_VERSION_9300:
637 case AR_SREV_VERSION_9330:
638 case AR_SREV_VERSION_9485:
639 case AR_SREV_VERSION_9340:
640 case AR_SREV_VERSION_9462:
641 case AR_SREV_VERSION_9550:
642 case AR_SREV_VERSION_9565:
646 "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
647 ah->hw_version.macVersion, ah->hw_version.macRev);
651 if (AR_SREV_9271(ah) || AR_SREV_9100(ah) || AR_SREV_9340(ah) ||
652 AR_SREV_9330(ah) || AR_SREV_9550(ah))
653 ah->is_pciexpress = false;
655 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
656 ath9k_hw_init_cal_settings(ah);
658 ah->ani_function = ATH9K_ANI_ALL;
659 if (AR_SREV_9280_20_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah))
660 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
661 if (!AR_SREV_9300_20_OR_LATER(ah))
662 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
664 if (!ah->is_pciexpress)
665 ath9k_hw_disablepcie(ah);
667 r = ath9k_hw_post_init(ah);
671 ath9k_hw_init_mode_gain_regs(ah);
672 r = ath9k_hw_fill_cap_info(ah);
676 r = ath9k_hw_init_macaddr(ah);
678 ath_err(common, "Failed to initialize MAC address\n");
682 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
683 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
685 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
687 if (AR_SREV_9330(ah))
688 ah->bb_watchdog_timeout_ms = 85;
690 ah->bb_watchdog_timeout_ms = 25;
692 common->state = ATH_HW_INITIALIZED;
697 int ath9k_hw_init(struct ath_hw *ah)
700 struct ath_common *common = ath9k_hw_common(ah);
702 /* These are all the AR5008/AR9001/AR9002/AR9003 hardware family of chipsets */
703 switch (ah->hw_version.devid) {
704 case AR5416_DEVID_PCI:
705 case AR5416_DEVID_PCIE:
706 case AR5416_AR9100_DEVID:
707 case AR9160_DEVID_PCI:
708 case AR9280_DEVID_PCI:
709 case AR9280_DEVID_PCIE:
710 case AR9285_DEVID_PCIE:
711 case AR9287_DEVID_PCI:
712 case AR9287_DEVID_PCIE:
713 case AR2427_DEVID_PCIE:
714 case AR9300_DEVID_PCIE:
715 case AR9300_DEVID_AR9485_PCIE:
716 case AR9300_DEVID_AR9330:
717 case AR9300_DEVID_AR9340:
718 case AR9300_DEVID_QCA955X:
719 case AR9300_DEVID_AR9580:
720 case AR9300_DEVID_AR9462:
721 case AR9485_DEVID_AR1111:
722 case AR9300_DEVID_AR9565:
725 if (common->bus_ops->ath_bus_type == ATH_USB)
727 ath_err(common, "Hardware device ID 0x%04x not supported\n",
728 ah->hw_version.devid);
732 ret = __ath9k_hw_init(ah);
735 "Unable to initialize hardware; initialization status: %d\n",
742 EXPORT_SYMBOL(ath9k_hw_init);
744 static void ath9k_hw_init_qos(struct ath_hw *ah)
746 ENABLE_REGWRITE_BUFFER(ah);
748 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
749 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
751 REG_WRITE(ah, AR_QOS_NO_ACK,
752 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
753 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
754 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
756 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
757 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
758 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
759 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
760 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
762 REGWRITE_BUFFER_FLUSH(ah);
765 u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
767 struct ath_common *common = ath9k_hw_common(ah);
770 REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
772 REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
774 while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0) {
778 if (WARN_ON_ONCE(i >= 100)) {
779 ath_err(common, "PLL4 meaurement not done\n");
786 return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
788 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
790 static void ath9k_hw_init_pll(struct ath_hw *ah,
791 struct ath9k_channel *chan)
795 if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
796 /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */
797 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
798 AR_CH0_BB_DPLL2_PLL_PWD, 0x1);
799 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
800 AR_CH0_DPLL2_KD, 0x40);
801 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
802 AR_CH0_DPLL2_KI, 0x4);
804 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
805 AR_CH0_BB_DPLL1_REFDIV, 0x5);
806 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
807 AR_CH0_BB_DPLL1_NINI, 0x58);
808 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
809 AR_CH0_BB_DPLL1_NFRAC, 0x0);
811 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
812 AR_CH0_BB_DPLL2_OUTDIV, 0x1);
813 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
814 AR_CH0_BB_DPLL2_LOCAL_PLL, 0x1);
815 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
816 AR_CH0_BB_DPLL2_EN_NEGTRIG, 0x1);
818 /* program BB PLL phase_shift to 0x6 */
819 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
820 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x6);
822 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
823 AR_CH0_BB_DPLL2_PLL_PWD, 0x0);
825 } else if (AR_SREV_9330(ah)) {
826 u32 ddr_dpll2, pll_control2, kd;
828 if (ah->is_clk_25mhz) {
829 ddr_dpll2 = 0x18e82f01;
830 pll_control2 = 0xe04a3d;
833 ddr_dpll2 = 0x19e82f01;
834 pll_control2 = 0x886666;
838 /* program DDR PLL ki and kd value */
839 REG_WRITE(ah, AR_CH0_DDR_DPLL2, ddr_dpll2);
841 /* program DDR PLL phase_shift */
842 REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3,
843 AR_CH0_DPLL3_PHASE_SHIFT, 0x1);
845 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
848 /* program refdiv, nint, frac to RTC register */
849 REG_WRITE(ah, AR_RTC_PLL_CONTROL2, pll_control2);
851 /* program BB PLL kd and ki value */
852 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KD, kd);
853 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KI, 0x06);
855 /* program BB PLL phase_shift */
856 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
857 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x1);
858 } else if (AR_SREV_9340(ah) || AR_SREV_9550(ah)) {
859 u32 regval, pll2_divint, pll2_divfrac, refdiv;
861 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
864 REG_SET_BIT(ah, AR_PHY_PLL_MODE, 0x1 << 16);
867 if (ah->is_clk_25mhz) {
869 pll2_divfrac = 0x1eb85;
872 if (AR_SREV_9340(ah)) {
878 pll2_divfrac = 0x26666;
883 regval = REG_READ(ah, AR_PHY_PLL_MODE);
884 regval |= (0x1 << 16);
885 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
888 REG_WRITE(ah, AR_PHY_PLL_CONTROL, (refdiv << 27) |
889 (pll2_divint << 18) | pll2_divfrac);
892 regval = REG_READ(ah, AR_PHY_PLL_MODE);
893 if (AR_SREV_9340(ah))
894 regval = (regval & 0x80071fff) | (0x1 << 30) |
895 (0x1 << 13) | (0x4 << 26) | (0x18 << 19);
897 regval = (regval & 0x80071fff) | (0x3 << 30) |
898 (0x1 << 13) | (0x4 << 26) | (0x60 << 19);
899 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
900 REG_WRITE(ah, AR_PHY_PLL_MODE,
901 REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff);
905 pll = ath9k_hw_compute_pll_control(ah, chan);
906 if (AR_SREV_9565(ah))
908 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
910 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
914 /* Switch the core clock for ar9271 to 117Mhz */
915 if (AR_SREV_9271(ah)) {
917 REG_WRITE(ah, 0x50040, 0x304);
920 udelay(RTC_PLL_SETTLE_DELAY);
922 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
924 if (AR_SREV_9340(ah) || AR_SREV_9550(ah)) {
925 if (ah->is_clk_25mhz) {
926 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x17c << 1);
927 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f3d7);
928 REG_WRITE(ah, AR_SLP32_INC, 0x0001e7ae);
930 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x261 << 1);
931 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f400);
932 REG_WRITE(ah, AR_SLP32_INC, 0x0001e800);
938 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
939 enum nl80211_iftype opmode)
941 u32 sync_default = AR_INTR_SYNC_DEFAULT;
942 u32 imr_reg = AR_IMR_TXERR |
948 if (AR_SREV_9340(ah) || AR_SREV_9550(ah))
949 sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
951 if (AR_SREV_9300_20_OR_LATER(ah)) {
952 imr_reg |= AR_IMR_RXOK_HP;
953 if (ah->config.rx_intr_mitigation)
954 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
956 imr_reg |= AR_IMR_RXOK_LP;
959 if (ah->config.rx_intr_mitigation)
960 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
962 imr_reg |= AR_IMR_RXOK;
965 if (ah->config.tx_intr_mitigation)
966 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
968 imr_reg |= AR_IMR_TXOK;
970 ENABLE_REGWRITE_BUFFER(ah);
972 REG_WRITE(ah, AR_IMR, imr_reg);
973 ah->imrs2_reg |= AR_IMR_S2_GTT;
974 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
976 if (!AR_SREV_9100(ah)) {
977 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
978 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default);
979 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
982 REGWRITE_BUFFER_FLUSH(ah);
984 if (AR_SREV_9300_20_OR_LATER(ah)) {
985 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
986 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
987 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
988 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
992 static void ath9k_hw_set_sifs_time(struct ath_hw *ah, u32 us)
994 u32 val = ath9k_hw_mac_to_clks(ah, us - 2);
995 val = min(val, (u32) 0xFFFF);
996 REG_WRITE(ah, AR_D_GBL_IFS_SIFS, val);
999 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
1001 u32 val = ath9k_hw_mac_to_clks(ah, us);
1002 val = min(val, (u32) 0xFFFF);
1003 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
1006 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
1008 u32 val = ath9k_hw_mac_to_clks(ah, us);
1009 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
1010 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
1013 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
1015 u32 val = ath9k_hw_mac_to_clks(ah, us);
1016 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
1017 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
1020 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
1023 ath_dbg(ath9k_hw_common(ah), XMIT, "bad global tx timeout %u\n",
1025 ah->globaltxtimeout = (u32) -1;
1028 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
1029 ah->globaltxtimeout = tu;
1034 void ath9k_hw_init_global_settings(struct ath_hw *ah)
1036 struct ath_common *common = ath9k_hw_common(ah);
1037 struct ieee80211_conf *conf = &common->hw->conf;
1038 const struct ath9k_channel *chan = ah->curchan;
1039 int acktimeout, ctstimeout, ack_offset = 0;
1042 int rx_lat = 0, tx_lat = 0, eifs = 0;
1045 ath_dbg(ath9k_hw_common(ah), RESET, "ah->misc_mode 0x%x\n",
1051 if (ah->misc_mode != 0)
1052 REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
1054 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1060 if (IS_CHAN_5GHZ(chan))
1065 if (IS_CHAN_HALF_RATE(chan)) {
1069 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1075 } else if (IS_CHAN_QUARTER_RATE(chan)) {
1077 rx_lat = (rx_lat * 4) - 1;
1079 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1086 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1087 eifs = AR_D_GBL_IFS_EIFS_ASYNC_FIFO;
1088 reg = AR_USEC_ASYNC_FIFO;
1090 eifs = REG_READ(ah, AR_D_GBL_IFS_EIFS)/
1092 reg = REG_READ(ah, AR_USEC);
1094 rx_lat = MS(reg, AR_USEC_RX_LAT);
1095 tx_lat = MS(reg, AR_USEC_TX_LAT);
1097 slottime = ah->slottime;
1100 /* As defined by IEEE 802.11-2007 17.3.8.6 */
1101 slottime += 3 * ah->coverage_class;
1102 acktimeout = slottime + sifstime + ack_offset;
1103 ctstimeout = acktimeout;
1106 * Workaround for early ACK timeouts, add an offset to match the
1107 * initval's 64us ack timeout value. Use 48us for the CTS timeout.
1108 * This was initially only meant to work around an issue with delayed
1109 * BA frames in some implementations, but it has been found to fix ACK
1110 * timeout issues in other cases as well.
1112 if (conf->chandef.chan &&
1113 conf->chandef.chan->band == IEEE80211_BAND_2GHZ &&
1114 !IS_CHAN_HALF_RATE(chan) && !IS_CHAN_QUARTER_RATE(chan)) {
1115 acktimeout += 64 - sifstime - ah->slottime;
1116 ctstimeout += 48 - sifstime - ah->slottime;
1119 ath9k_hw_set_sifs_time(ah, sifstime);
1120 ath9k_hw_setslottime(ah, slottime);
1121 ath9k_hw_set_ack_timeout(ah, acktimeout);
1122 ath9k_hw_set_cts_timeout(ah, ctstimeout);
1123 if (ah->globaltxtimeout != (u32) -1)
1124 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
1126 REG_WRITE(ah, AR_D_GBL_IFS_EIFS, ath9k_hw_mac_to_clks(ah, eifs));
1127 REG_RMW(ah, AR_USEC,
1128 (common->clockrate - 1) |
1129 SM(rx_lat, AR_USEC_RX_LAT) |
1130 SM(tx_lat, AR_USEC_TX_LAT),
1131 AR_USEC_TX_LAT | AR_USEC_RX_LAT | AR_USEC_USEC);
1134 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
1136 void ath9k_hw_deinit(struct ath_hw *ah)
1138 struct ath_common *common = ath9k_hw_common(ah);
1140 if (common->state < ATH_HW_INITIALIZED)
1143 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
1145 EXPORT_SYMBOL(ath9k_hw_deinit);
1151 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
1153 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
1155 if (IS_CHAN_B(chan))
1157 else if (IS_CHAN_G(chan))
1165 /****************************************/
1166 /* Reset and Channel Switching Routines */
1167 /****************************************/
1169 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
1171 struct ath_common *common = ath9k_hw_common(ah);
1174 ENABLE_REGWRITE_BUFFER(ah);
1177 * set AHB_MODE not to do cacheline prefetches
1179 if (!AR_SREV_9300_20_OR_LATER(ah))
1180 REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
1183 * let mac dma reads be in 128 byte chunks
1185 REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK);
1187 REGWRITE_BUFFER_FLUSH(ah);
1190 * Restore TX Trigger Level to its pre-reset value.
1191 * The initial value depends on whether aggregation is enabled, and is
1192 * adjusted whenever underruns are detected.
1194 if (!AR_SREV_9300_20_OR_LATER(ah))
1195 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
1197 ENABLE_REGWRITE_BUFFER(ah);
1200 * let mac dma writes be in 128 byte chunks
1202 REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK);
1205 * Setup receive FIFO threshold to hold off TX activities
1207 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
1209 if (AR_SREV_9300_20_OR_LATER(ah)) {
1210 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
1211 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
1213 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
1214 ah->caps.rx_status_len);
1218 * reduce the number of usable entries in PCU TXBUF to avoid
1219 * wrap around issues.
1221 if (AR_SREV_9285(ah)) {
1222 /* For AR9285 the number of Fifos are reduced to half.
1223 * So set the usable tx buf size also to half to
1224 * avoid data/delimiter underruns
1226 txbuf_size = AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE;
1227 } else if (AR_SREV_9340_13_OR_LATER(ah)) {
1228 /* Uses fewer entries for AR934x v1.3+ to prevent rx overruns */
1229 txbuf_size = AR_9340_PCU_TXBUF_CTRL_USABLE_SIZE;
1231 txbuf_size = AR_PCU_TXBUF_CTRL_USABLE_SIZE;
1234 if (!AR_SREV_9271(ah))
1235 REG_WRITE(ah, AR_PCU_TXBUF_CTRL, txbuf_size);
1237 REGWRITE_BUFFER_FLUSH(ah);
1239 if (AR_SREV_9300_20_OR_LATER(ah))
1240 ath9k_hw_reset_txstatus_ring(ah);
1243 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
1245 u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC;
1246 u32 set = AR_STA_ID1_KSRCH_MODE;
1249 case NL80211_IFTYPE_ADHOC:
1250 set |= AR_STA_ID1_ADHOC;
1251 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1253 case NL80211_IFTYPE_MESH_POINT:
1254 case NL80211_IFTYPE_AP:
1255 set |= AR_STA_ID1_STA_AP;
1257 case NL80211_IFTYPE_STATION:
1258 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1261 if (!ah->is_monitoring)
1265 REG_RMW(ah, AR_STA_ID1, set, mask);
1268 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
1269 u32 *coef_mantissa, u32 *coef_exponent)
1271 u32 coef_exp, coef_man;
1273 for (coef_exp = 31; coef_exp > 0; coef_exp--)
1274 if ((coef_scaled >> coef_exp) & 0x1)
1277 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1279 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1281 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1282 *coef_exponent = coef_exp - 16;
1285 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1290 if (AR_SREV_9100(ah)) {
1291 REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK,
1292 AR_RTC_DERIVED_CLK_PERIOD, 1);
1293 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1296 ENABLE_REGWRITE_BUFFER(ah);
1298 if (AR_SREV_9300_20_OR_LATER(ah)) {
1299 REG_WRITE(ah, AR_WA, ah->WARegVal);
1303 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1304 AR_RTC_FORCE_WAKE_ON_INT);
1306 if (AR_SREV_9100(ah)) {
1307 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1308 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1310 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1311 if (AR_SREV_9340(ah))
1312 tmpReg &= AR9340_INTR_SYNC_LOCAL_TIMEOUT;
1314 tmpReg &= AR_INTR_SYNC_LOCAL_TIMEOUT |
1315 AR_INTR_SYNC_RADM_CPL_TIMEOUT;
1319 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1322 if (!AR_SREV_9300_20_OR_LATER(ah))
1324 REG_WRITE(ah, AR_RC, val);
1326 } else if (!AR_SREV_9300_20_OR_LATER(ah))
1327 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1329 rst_flags = AR_RTC_RC_MAC_WARM;
1330 if (type == ATH9K_RESET_COLD)
1331 rst_flags |= AR_RTC_RC_MAC_COLD;
1334 if (AR_SREV_9330(ah)) {
1339 * call external reset function to reset WMAC if:
1340 * - doing a cold reset
1341 * - we have pending frames in the TX queues
1344 for (i = 0; i < AR_NUM_QCU; i++) {
1345 npend = ath9k_hw_numtxpending(ah, i);
1350 if (ah->external_reset &&
1351 (npend || type == ATH9K_RESET_COLD)) {
1354 ath_dbg(ath9k_hw_common(ah), RESET,
1355 "reset MAC via external reset\n");
1357 reset_err = ah->external_reset();
1359 ath_err(ath9k_hw_common(ah),
1360 "External reset failed, err=%d\n",
1365 REG_WRITE(ah, AR_RTC_RESET, 1);
1369 if (ath9k_hw_mci_is_enabled(ah))
1370 ar9003_mci_check_gpm_offset(ah);
1372 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1374 REGWRITE_BUFFER_FLUSH(ah);
1378 REG_WRITE(ah, AR_RTC_RC, 0);
1379 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1380 ath_dbg(ath9k_hw_common(ah), RESET, "RTC stuck in MAC reset\n");
1384 if (!AR_SREV_9100(ah))
1385 REG_WRITE(ah, AR_RC, 0);
1387 if (AR_SREV_9100(ah))
1393 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1395 ENABLE_REGWRITE_BUFFER(ah);
1397 if (AR_SREV_9300_20_OR_LATER(ah)) {
1398 REG_WRITE(ah, AR_WA, ah->WARegVal);
1402 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1403 AR_RTC_FORCE_WAKE_ON_INT);
1405 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1406 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1408 REG_WRITE(ah, AR_RTC_RESET, 0);
1410 REGWRITE_BUFFER_FLUSH(ah);
1412 if (!AR_SREV_9300_20_OR_LATER(ah))
1415 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1416 REG_WRITE(ah, AR_RC, 0);
1418 REG_WRITE(ah, AR_RTC_RESET, 1);
1420 if (!ath9k_hw_wait(ah,
1425 ath_dbg(ath9k_hw_common(ah), RESET, "RTC not waking up\n");
1429 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1432 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1436 if (AR_SREV_9300_20_OR_LATER(ah)) {
1437 REG_WRITE(ah, AR_WA, ah->WARegVal);
1441 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1442 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1444 if (!ah->reset_power_on)
1445 type = ATH9K_RESET_POWER_ON;
1448 case ATH9K_RESET_POWER_ON:
1449 ret = ath9k_hw_set_reset_power_on(ah);
1451 ah->reset_power_on = true;
1453 case ATH9K_RESET_WARM:
1454 case ATH9K_RESET_COLD:
1455 ret = ath9k_hw_set_reset(ah, type);
1464 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1465 struct ath9k_channel *chan)
1467 int reset_type = ATH9K_RESET_WARM;
1469 if (AR_SREV_9280(ah)) {
1470 if (ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1471 reset_type = ATH9K_RESET_POWER_ON;
1473 reset_type = ATH9K_RESET_COLD;
1474 } else if (ah->chip_fullsleep || REG_READ(ah, AR_Q_TXE) ||
1475 (REG_READ(ah, AR_CR) & AR_CR_RXE))
1476 reset_type = ATH9K_RESET_COLD;
1478 if (!ath9k_hw_set_reset_reg(ah, reset_type))
1481 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1484 ah->chip_fullsleep = false;
1486 if (AR_SREV_9330(ah))
1487 ar9003_hw_internal_regulator_apply(ah);
1488 ath9k_hw_init_pll(ah, chan);
1489 ath9k_hw_set_rfmode(ah, chan);
1494 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1495 struct ath9k_channel *chan)
1497 struct ath_common *common = ath9k_hw_common(ah);
1498 struct ath9k_hw_capabilities *pCap = &ah->caps;
1499 bool band_switch = false, mode_diff = false;
1500 u8 ini_reloaded = 0;
1504 if (pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) {
1505 u32 cur = ah->curchan->channelFlags & (CHANNEL_2GHZ | CHANNEL_5GHZ);
1506 u32 new = chan->channelFlags & (CHANNEL_2GHZ | CHANNEL_5GHZ);
1507 band_switch = (cur != new);
1508 mode_diff = (chan->chanmode != ah->curchan->chanmode);
1511 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1512 if (ath9k_hw_numtxpending(ah, qnum)) {
1513 ath_dbg(common, QUEUE,
1514 "Transmit frames pending on queue %d\n", qnum);
1519 if (!ath9k_hw_rfbus_req(ah)) {
1520 ath_err(common, "Could not kill baseband RX\n");
1524 if (band_switch || mode_diff) {
1525 ath9k_hw_mark_phy_inactive(ah);
1529 ath9k_hw_init_pll(ah, chan);
1531 if (ath9k_hw_fast_chan_change(ah, chan, &ini_reloaded)) {
1532 ath_err(common, "Failed to do fast channel change\n");
1537 ath9k_hw_set_channel_regs(ah, chan);
1539 r = ath9k_hw_rf_set_freq(ah, chan);
1541 ath_err(common, "Failed to set channel\n");
1544 ath9k_hw_set_clockrate(ah);
1545 ath9k_hw_apply_txpower(ah, chan, false);
1547 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1548 ath9k_hw_set_delta_slope(ah, chan);
1550 ath9k_hw_spur_mitigate_freq(ah, chan);
1552 if (band_switch || ini_reloaded)
1553 ah->eep_ops->set_board_values(ah, chan);
1555 ath9k_hw_init_bb(ah, chan);
1556 ath9k_hw_rfbus_done(ah);
1558 if (band_switch || ini_reloaded) {
1559 ah->ah_flags |= AH_FASTCC;
1560 ath9k_hw_init_cal(ah, chan);
1561 ah->ah_flags &= ~AH_FASTCC;
1567 static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
1569 u32 gpio_mask = ah->gpio_mask;
1572 for (i = 0; gpio_mask; i++, gpio_mask >>= 1) {
1573 if (!(gpio_mask & 1))
1576 ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
1577 ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
1581 static bool ath9k_hw_check_dcs(u32 dma_dbg, u32 num_dcu_states,
1582 int *hang_state, int *hang_pos)
1584 static u32 dcu_chain_state[] = {5, 6, 9}; /* DCU chain stuck states */
1585 u32 chain_state, dcs_pos, i;
1587 for (dcs_pos = 0; dcs_pos < num_dcu_states; dcs_pos++) {
1588 chain_state = (dma_dbg >> (5 * dcs_pos)) & 0x1f;
1589 for (i = 0; i < 3; i++) {
1590 if (chain_state == dcu_chain_state[i]) {
1591 *hang_state = chain_state;
1592 *hang_pos = dcs_pos;
1600 #define DCU_COMPLETE_STATE 1
1601 #define DCU_COMPLETE_STATE_MASK 0x3
1602 #define NUM_STATUS_READS 50
1603 static bool ath9k_hw_detect_mac_hang(struct ath_hw *ah)
1605 u32 chain_state, comp_state, dcs_reg = AR_DMADBG_4;
1606 u32 i, hang_pos, hang_state, num_state = 6;
1608 comp_state = REG_READ(ah, AR_DMADBG_6);
1610 if ((comp_state & DCU_COMPLETE_STATE_MASK) != DCU_COMPLETE_STATE) {
1611 ath_dbg(ath9k_hw_common(ah), RESET,
1612 "MAC Hang signature not found at DCU complete\n");
1616 chain_state = REG_READ(ah, dcs_reg);
1617 if (ath9k_hw_check_dcs(chain_state, num_state, &hang_state, &hang_pos))
1618 goto hang_check_iter;
1620 dcs_reg = AR_DMADBG_5;
1622 chain_state = REG_READ(ah, dcs_reg);
1623 if (ath9k_hw_check_dcs(chain_state, num_state, &hang_state, &hang_pos))
1624 goto hang_check_iter;
1626 ath_dbg(ath9k_hw_common(ah), RESET,
1627 "MAC Hang signature 1 not found\n");
1631 ath_dbg(ath9k_hw_common(ah), RESET,
1632 "DCU registers: chain %08x complete %08x Hang: state %d pos %d\n",
1633 chain_state, comp_state, hang_state, hang_pos);
1635 for (i = 0; i < NUM_STATUS_READS; i++) {
1636 chain_state = REG_READ(ah, dcs_reg);
1637 chain_state = (chain_state >> (5 * hang_pos)) & 0x1f;
1638 comp_state = REG_READ(ah, AR_DMADBG_6);
1640 if (((comp_state & DCU_COMPLETE_STATE_MASK) !=
1641 DCU_COMPLETE_STATE) ||
1642 (chain_state != hang_state))
1646 ath_dbg(ath9k_hw_common(ah), RESET, "MAC Hang signature 1 found\n");
1651 bool ath9k_hw_check_alive(struct ath_hw *ah)
1656 if (AR_SREV_9300(ah))
1657 return !ath9k_hw_detect_mac_hang(ah);
1659 if (AR_SREV_9285_12_OR_LATER(ah))
1663 reg = REG_READ(ah, AR_OBS_BUS_1);
1665 if ((reg & 0x7E7FFFEF) == 0x00702400)
1668 switch (reg & 0x7E000B00) {
1676 } while (count-- > 0);
1680 EXPORT_SYMBOL(ath9k_hw_check_alive);
1682 static void ath9k_hw_init_mfp(struct ath_hw *ah)
1684 /* Setup MFP options for CCMP */
1685 if (AR_SREV_9280_20_OR_LATER(ah)) {
1686 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1687 * frames when constructing CCMP AAD. */
1688 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1690 ah->sw_mgmt_crypto = false;
1691 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1692 /* Disable hardware crypto for management frames */
1693 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1694 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1695 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1696 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1697 ah->sw_mgmt_crypto = true;
1699 ah->sw_mgmt_crypto = true;
1703 static void ath9k_hw_reset_opmode(struct ath_hw *ah,
1704 u32 macStaId1, u32 saveDefAntenna)
1706 struct ath_common *common = ath9k_hw_common(ah);
1708 ENABLE_REGWRITE_BUFFER(ah);
1710 REG_RMW(ah, AR_STA_ID1, macStaId1
1711 | AR_STA_ID1_RTS_USE_DEF
1712 | (ah->config.ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1713 | ah->sta_id1_defaults,
1714 ~AR_STA_ID1_SADH_MASK);
1715 ath_hw_setbssidmask(common);
1716 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1717 ath9k_hw_write_associd(ah);
1718 REG_WRITE(ah, AR_ISR, ~0);
1719 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1721 REGWRITE_BUFFER_FLUSH(ah);
1723 ath9k_hw_set_operating_mode(ah, ah->opmode);
1726 static void ath9k_hw_init_queues(struct ath_hw *ah)
1730 ENABLE_REGWRITE_BUFFER(ah);
1732 for (i = 0; i < AR_NUM_DCU; i++)
1733 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1735 REGWRITE_BUFFER_FLUSH(ah);
1738 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
1739 ath9k_hw_resettxqueue(ah, i);
1743 * For big endian systems turn on swapping for descriptors
1745 static void ath9k_hw_init_desc(struct ath_hw *ah)
1747 struct ath_common *common = ath9k_hw_common(ah);
1749 if (AR_SREV_9100(ah)) {
1751 mask = REG_READ(ah, AR_CFG);
1752 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1753 ath_dbg(common, RESET, "CFG Byte Swap Set 0x%x\n",
1756 mask = INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1757 REG_WRITE(ah, AR_CFG, mask);
1758 ath_dbg(common, RESET, "Setting CFG 0x%x\n",
1759 REG_READ(ah, AR_CFG));
1762 if (common->bus_ops->ath_bus_type == ATH_USB) {
1763 /* Configure AR9271 target WLAN */
1764 if (AR_SREV_9271(ah))
1765 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1767 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1770 else if (AR_SREV_9330(ah) || AR_SREV_9340(ah) ||
1772 REG_RMW(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB, 0);
1774 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1780 * Fast channel change:
1781 * (Change synthesizer based on channel freq without resetting chip)
1783 static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan)
1785 struct ath_common *common = ath9k_hw_common(ah);
1786 struct ath9k_hw_capabilities *pCap = &ah->caps;
1789 if (AR_SREV_9280(ah) && common->bus_ops->ath_bus_type == ATH_PCI)
1792 if (ah->chip_fullsleep)
1798 if (chan->channel == ah->curchan->channel)
1801 if ((ah->curchan->channelFlags | chan->channelFlags) &
1802 (CHANNEL_HALF | CHANNEL_QUARTER))
1806 * If cross-band fcc is not supoprted, bail out if
1807 * either channelFlags or chanmode differ.
1809 * chanmode will be different if the HT operating mode
1810 * changes because of CSA.
1812 if (!(pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH)) {
1813 if ((chan->channelFlags & CHANNEL_ALL) !=
1814 (ah->curchan->channelFlags & CHANNEL_ALL))
1817 if (chan->chanmode != ah->curchan->chanmode)
1821 if (!ath9k_hw_check_alive(ah))
1825 * For AR9462, make sure that calibration data for
1826 * re-using are present.
1828 if (AR_SREV_9462(ah) && (ah->caldata &&
1829 (!ah->caldata->done_txiqcal_once ||
1830 !ah->caldata->done_txclcal_once ||
1831 !ah->caldata->rtt_done)))
1834 ath_dbg(common, RESET, "FastChannelChange for %d -> %d\n",
1835 ah->curchan->channel, chan->channel);
1837 ret = ath9k_hw_channel_change(ah, chan);
1841 if (ath9k_hw_mci_is_enabled(ah))
1842 ar9003_mci_2g5g_switch(ah, false);
1844 ath9k_hw_loadnf(ah, ah->curchan);
1845 ath9k_hw_start_nfcal(ah, true);
1847 if (AR_SREV_9271(ah))
1848 ar9002_hw_load_ani_reg(ah, chan);
1855 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1856 struct ath9k_hw_cal_data *caldata, bool fastcc)
1858 struct ath_common *common = ath9k_hw_common(ah);
1864 bool start_mci_reset = false;
1865 bool save_fullsleep = ah->chip_fullsleep;
1867 if (ath9k_hw_mci_is_enabled(ah)) {
1868 start_mci_reset = ar9003_mci_start_reset(ah, chan);
1869 if (start_mci_reset)
1873 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1876 if (ah->curchan && !ah->chip_fullsleep)
1877 ath9k_hw_getnf(ah, ah->curchan);
1879 ah->caldata = caldata;
1880 if (caldata && (chan->channel != caldata->channel ||
1881 chan->channelFlags != caldata->channelFlags ||
1882 chan->chanmode != caldata->chanmode)) {
1883 /* Operating channel changed, reset channel calibration data */
1884 memset(caldata, 0, sizeof(*caldata));
1885 ath9k_init_nfcal_hist_buffer(ah, chan);
1886 } else if (caldata) {
1887 caldata->paprd_packet_sent = false;
1889 ah->noise = ath9k_hw_getchan_noise(ah, chan);
1892 r = ath9k_hw_do_fastcc(ah, chan);
1897 if (ath9k_hw_mci_is_enabled(ah))
1898 ar9003_mci_stop_bt(ah, save_fullsleep);
1900 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1901 if (saveDefAntenna == 0)
1904 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1906 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1907 if (AR_SREV_9100(ah) ||
1908 (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)))
1909 tsf = ath9k_hw_gettsf64(ah);
1911 saveLedState = REG_READ(ah, AR_CFG_LED) &
1912 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1913 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1915 ath9k_hw_mark_phy_inactive(ah);
1917 ah->paprd_table_write_done = false;
1919 /* Only required on the first reset */
1920 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1922 AR9271_RESET_POWER_DOWN_CONTROL,
1923 AR9271_RADIO_RF_RST);
1927 if (!ath9k_hw_chip_reset(ah, chan)) {
1928 ath_err(common, "Chip reset failed\n");
1932 /* Only required on the first reset */
1933 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1934 ah->htc_reset_init = false;
1936 AR9271_RESET_POWER_DOWN_CONTROL,
1937 AR9271_GATE_MAC_CTL);
1943 ath9k_hw_settsf64(ah, tsf);
1945 if (AR_SREV_9280_20_OR_LATER(ah))
1946 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1948 if (!AR_SREV_9300_20_OR_LATER(ah))
1949 ar9002_hw_enable_async_fifo(ah);
1951 r = ath9k_hw_process_ini(ah, chan);
1955 if (ath9k_hw_mci_is_enabled(ah))
1956 ar9003_mci_reset(ah, false, IS_CHAN_2GHZ(chan), save_fullsleep);
1959 * Some AR91xx SoC devices frequently fail to accept TSF writes
1960 * right after the chip reset. When that happens, write a new
1961 * value after the initvals have been applied, with an offset
1962 * based on measured time difference
1964 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1966 ath9k_hw_settsf64(ah, tsf);
1969 ath9k_hw_init_mfp(ah);
1971 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1972 ath9k_hw_set_delta_slope(ah, chan);
1974 ath9k_hw_spur_mitigate_freq(ah, chan);
1975 ah->eep_ops->set_board_values(ah, chan);
1977 ath9k_hw_reset_opmode(ah, macStaId1, saveDefAntenna);
1979 r = ath9k_hw_rf_set_freq(ah, chan);
1983 ath9k_hw_set_clockrate(ah);
1985 ath9k_hw_init_queues(ah);
1986 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1987 ath9k_hw_ani_cache_ini_regs(ah);
1988 ath9k_hw_init_qos(ah);
1990 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1991 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
1993 ath9k_hw_init_global_settings(ah);
1995 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1996 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
1997 AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
1998 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
1999 AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
2000 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
2001 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
2004 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
2006 ath9k_hw_set_dma(ah);
2008 if (!ath9k_hw_mci_is_enabled(ah))
2009 REG_WRITE(ah, AR_OBS, 8);
2011 if (ah->config.rx_intr_mitigation) {
2012 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
2013 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
2016 if (ah->config.tx_intr_mitigation) {
2017 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
2018 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
2021 ath9k_hw_init_bb(ah, chan);
2024 caldata->done_txiqcal_once = false;
2025 caldata->done_txclcal_once = false;
2027 if (!ath9k_hw_init_cal(ah, chan))
2030 if (ath9k_hw_mci_is_enabled(ah) && ar9003_mci_end_reset(ah, chan, caldata))
2033 ENABLE_REGWRITE_BUFFER(ah);
2035 ath9k_hw_restore_chainmask(ah);
2036 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
2038 REGWRITE_BUFFER_FLUSH(ah);
2040 ath9k_hw_init_desc(ah);
2042 if (ath9k_hw_btcoex_is_enabled(ah))
2043 ath9k_hw_btcoex_enable(ah);
2045 if (ath9k_hw_mci_is_enabled(ah))
2046 ar9003_mci_check_bt(ah);
2048 ath9k_hw_loadnf(ah, chan);
2049 ath9k_hw_start_nfcal(ah, true);
2051 if (AR_SREV_9300_20_OR_LATER(ah)) {
2052 ar9003_hw_bb_watchdog_config(ah);
2053 ar9003_hw_disable_phy_restart(ah);
2056 ath9k_hw_apply_gpio_override(ah);
2058 if (AR_SREV_9565(ah) && common->bt_ant_diversity)
2059 REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON);
2063 EXPORT_SYMBOL(ath9k_hw_reset);
2065 /******************************/
2066 /* Power Management (Chipset) */
2067 /******************************/
2070 * Notify Power Mgt is disabled in self-generated frames.
2071 * If requested, force chip to sleep.
2073 static void ath9k_set_power_sleep(struct ath_hw *ah)
2075 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2077 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
2078 REG_CLR_BIT(ah, AR_TIMER_MODE, 0xff);
2079 REG_CLR_BIT(ah, AR_NDP2_TIMER_MODE, 0xff);
2080 REG_CLR_BIT(ah, AR_SLP32_INC, 0xfffff);
2081 /* xxx Required for WLAN only case ? */
2082 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, 0);
2087 * Clear the RTC force wake bit to allow the
2088 * mac to go to sleep.
2090 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
2092 if (ath9k_hw_mci_is_enabled(ah))
2095 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
2096 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
2098 /* Shutdown chip. Active low */
2099 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah)) {
2100 REG_CLR_BIT(ah, AR_RTC_RESET, AR_RTC_RESET_EN);
2104 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
2105 if (AR_SREV_9300_20_OR_LATER(ah))
2106 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
2110 * Notify Power Management is enabled in self-generating
2111 * frames. If request, set power mode of chip to
2112 * auto/normal. Duration in units of 128us (1/8 TU).
2114 static void ath9k_set_power_network_sleep(struct ath_hw *ah)
2116 struct ath9k_hw_capabilities *pCap = &ah->caps;
2118 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2120 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
2121 /* Set WakeOnInterrupt bit; clear ForceWake bit */
2122 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
2123 AR_RTC_FORCE_WAKE_ON_INT);
2126 /* When chip goes into network sleep, it could be waken
2127 * up by MCI_INT interrupt caused by BT's HW messages
2128 * (LNA_xxx, CONT_xxx) which chould be in a very fast
2129 * rate (~100us). This will cause chip to leave and
2130 * re-enter network sleep mode frequently, which in
2131 * consequence will have WLAN MCI HW to generate lots of
2132 * SYS_WAKING and SYS_SLEEPING messages which will make
2133 * BT CPU to busy to process.
2135 if (ath9k_hw_mci_is_enabled(ah))
2136 REG_CLR_BIT(ah, AR_MCI_INTERRUPT_RX_MSG_EN,
2137 AR_MCI_INTERRUPT_RX_HW_MSG_MASK);
2139 * Clear the RTC force wake bit to allow the
2140 * mac to go to sleep.
2142 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
2144 if (ath9k_hw_mci_is_enabled(ah))
2148 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
2149 if (AR_SREV_9300_20_OR_LATER(ah))
2150 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
2153 static bool ath9k_hw_set_power_awake(struct ath_hw *ah)
2158 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
2159 if (AR_SREV_9300_20_OR_LATER(ah)) {
2160 REG_WRITE(ah, AR_WA, ah->WARegVal);
2164 if ((REG_READ(ah, AR_RTC_STATUS) &
2165 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
2166 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
2169 if (!AR_SREV_9300_20_OR_LATER(ah))
2170 ath9k_hw_init_pll(ah, NULL);
2172 if (AR_SREV_9100(ah))
2173 REG_SET_BIT(ah, AR_RTC_RESET,
2176 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2177 AR_RTC_FORCE_WAKE_EN);
2180 for (i = POWER_UP_TIME / 50; i > 0; i--) {
2181 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
2182 if (val == AR_RTC_STATUS_ON)
2185 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2186 AR_RTC_FORCE_WAKE_EN);
2189 ath_err(ath9k_hw_common(ah),
2190 "Failed to wakeup in %uus\n",
2191 POWER_UP_TIME / 20);
2195 if (ath9k_hw_mci_is_enabled(ah))
2196 ar9003_mci_set_power_awake(ah);
2198 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2203 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
2205 struct ath_common *common = ath9k_hw_common(ah);
2207 static const char *modes[] = {
2214 if (ah->power_mode == mode)
2217 ath_dbg(common, RESET, "%s -> %s\n",
2218 modes[ah->power_mode], modes[mode]);
2221 case ATH9K_PM_AWAKE:
2222 status = ath9k_hw_set_power_awake(ah);
2224 case ATH9K_PM_FULL_SLEEP:
2225 if (ath9k_hw_mci_is_enabled(ah))
2226 ar9003_mci_set_full_sleep(ah);
2228 ath9k_set_power_sleep(ah);
2229 ah->chip_fullsleep = true;
2231 case ATH9K_PM_NETWORK_SLEEP:
2232 ath9k_set_power_network_sleep(ah);
2235 ath_err(common, "Unknown power mode %u\n", mode);
2238 ah->power_mode = mode;
2241 * XXX: If this warning never comes up after a while then
2242 * simply keep the ATH_DBG_WARN_ON_ONCE() but make
2243 * ath9k_hw_setpower() return type void.
2246 if (!(ah->ah_flags & AH_UNPLUGGED))
2247 ATH_DBG_WARN_ON_ONCE(!status);
2251 EXPORT_SYMBOL(ath9k_hw_setpower);
2253 /*******************/
2254 /* Beacon Handling */
2255 /*******************/
2257 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
2261 ENABLE_REGWRITE_BUFFER(ah);
2263 switch (ah->opmode) {
2264 case NL80211_IFTYPE_ADHOC:
2265 REG_SET_BIT(ah, AR_TXCFG,
2266 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
2267 REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon +
2268 TU_TO_USEC(ah->atim_window ? ah->atim_window : 1));
2269 flags |= AR_NDP_TIMER_EN;
2270 case NL80211_IFTYPE_MESH_POINT:
2271 case NL80211_IFTYPE_AP:
2272 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
2273 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
2274 TU_TO_USEC(ah->config.dma_beacon_response_time));
2275 REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
2276 TU_TO_USEC(ah->config.sw_beacon_response_time));
2278 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
2281 ath_dbg(ath9k_hw_common(ah), BEACON,
2282 "%s: unsupported opmode: %d\n", __func__, ah->opmode);
2287 REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
2288 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
2289 REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
2290 REG_WRITE(ah, AR_NDP_PERIOD, beacon_period);
2292 REGWRITE_BUFFER_FLUSH(ah);
2294 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
2296 EXPORT_SYMBOL(ath9k_hw_beaconinit);
2298 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
2299 const struct ath9k_beacon_state *bs)
2301 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
2302 struct ath9k_hw_capabilities *pCap = &ah->caps;
2303 struct ath_common *common = ath9k_hw_common(ah);
2305 ENABLE_REGWRITE_BUFFER(ah);
2307 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
2309 REG_WRITE(ah, AR_BEACON_PERIOD,
2310 TU_TO_USEC(bs->bs_intval));
2311 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
2312 TU_TO_USEC(bs->bs_intval));
2314 REGWRITE_BUFFER_FLUSH(ah);
2316 REG_RMW_FIELD(ah, AR_RSSI_THR,
2317 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
2319 beaconintval = bs->bs_intval;
2321 if (bs->bs_sleepduration > beaconintval)
2322 beaconintval = bs->bs_sleepduration;
2324 dtimperiod = bs->bs_dtimperiod;
2325 if (bs->bs_sleepduration > dtimperiod)
2326 dtimperiod = bs->bs_sleepduration;
2328 if (beaconintval == dtimperiod)
2329 nextTbtt = bs->bs_nextdtim;
2331 nextTbtt = bs->bs_nexttbtt;
2333 ath_dbg(common, BEACON, "next DTIM %d\n", bs->bs_nextdtim);
2334 ath_dbg(common, BEACON, "next beacon %d\n", nextTbtt);
2335 ath_dbg(common, BEACON, "beacon period %d\n", beaconintval);
2336 ath_dbg(common, BEACON, "DTIM period %d\n", dtimperiod);
2338 ENABLE_REGWRITE_BUFFER(ah);
2340 REG_WRITE(ah, AR_NEXT_DTIM,
2341 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
2342 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
2344 REG_WRITE(ah, AR_SLEEP1,
2345 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
2346 | AR_SLEEP1_ASSUME_DTIM);
2348 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
2349 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
2351 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
2353 REG_WRITE(ah, AR_SLEEP2,
2354 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
2356 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
2357 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
2359 REGWRITE_BUFFER_FLUSH(ah);
2361 REG_SET_BIT(ah, AR_TIMER_MODE,
2362 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
2365 /* TSF Out of Range Threshold */
2366 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
2368 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
2370 /*******************/
2371 /* HW Capabilities */
2372 /*******************/
2374 static u8 fixup_chainmask(u8 chip_chainmask, u8 eeprom_chainmask)
2376 eeprom_chainmask &= chip_chainmask;
2377 if (eeprom_chainmask)
2378 return eeprom_chainmask;
2380 return chip_chainmask;
2384 * ath9k_hw_dfs_tested - checks if DFS has been tested with used chipset
2385 * @ah: the atheros hardware data structure
2387 * We enable DFS support upstream on chipsets which have passed a series
2388 * of tests. The testing requirements are going to be documented. Desired
2389 * test requirements are documented at:
2391 * http://wireless.kernel.org/en/users/Drivers/ath9k/dfs
2393 * Once a new chipset gets properly tested an individual commit can be used
2394 * to document the testing for DFS for that chipset.
2396 static bool ath9k_hw_dfs_tested(struct ath_hw *ah)
2399 switch (ah->hw_version.macVersion) {
2400 /* for temporary testing DFS with 9280 */
2401 case AR_SREV_VERSION_9280:
2402 /* AR9580 will likely be our first target to get testing on */
2403 case AR_SREV_VERSION_9580:
2410 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
2412 struct ath9k_hw_capabilities *pCap = &ah->caps;
2413 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2414 struct ath_common *common = ath9k_hw_common(ah);
2415 unsigned int chip_chainmask;
2418 u8 ant_div_ctl1, tx_chainmask, rx_chainmask;
2420 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
2421 regulatory->current_rd = eeval;
2423 if (ah->opmode != NL80211_IFTYPE_AP &&
2424 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
2425 if (regulatory->current_rd == 0x64 ||
2426 regulatory->current_rd == 0x65)
2427 regulatory->current_rd += 5;
2428 else if (regulatory->current_rd == 0x41)
2429 regulatory->current_rd = 0x43;
2430 ath_dbg(common, REGULATORY, "regdomain mapped to 0x%x\n",
2431 regulatory->current_rd);
2434 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
2435 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
2437 "no band has been marked as supported in EEPROM\n");
2441 if (eeval & AR5416_OPFLAGS_11A)
2442 pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
2444 if (eeval & AR5416_OPFLAGS_11G)
2445 pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
2447 if (AR_SREV_9485(ah) ||
2452 else if (AR_SREV_9462(ah))
2454 else if (!AR_SREV_9280_20_OR_LATER(ah))
2456 else if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9340(ah))
2461 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
2463 * For AR9271 we will temporarilly uses the rx chainmax as read from
2466 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
2467 !(eeval & AR5416_OPFLAGS_11A) &&
2468 !(AR_SREV_9271(ah)))
2469 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
2470 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
2471 else if (AR_SREV_9100(ah))
2472 pCap->rx_chainmask = 0x7;
2474 /* Use rx_chainmask from EEPROM. */
2475 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
2477 pCap->tx_chainmask = fixup_chainmask(chip_chainmask, pCap->tx_chainmask);
2478 pCap->rx_chainmask = fixup_chainmask(chip_chainmask, pCap->rx_chainmask);
2479 ah->txchainmask = pCap->tx_chainmask;
2480 ah->rxchainmask = pCap->rx_chainmask;
2482 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
2484 /* enable key search for every frame in an aggregate */
2485 if (AR_SREV_9300_20_OR_LATER(ah))
2486 ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
2488 common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
2490 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
2491 pCap->hw_caps |= ATH9K_HW_CAP_HT;
2493 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
2495 if (AR_SREV_9271(ah))
2496 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2497 else if (AR_DEVID_7010(ah))
2498 pCap->num_gpio_pins = AR7010_NUM_GPIO;
2499 else if (AR_SREV_9300_20_OR_LATER(ah))
2500 pCap->num_gpio_pins = AR9300_NUM_GPIO;
2501 else if (AR_SREV_9287_11_OR_LATER(ah))
2502 pCap->num_gpio_pins = AR9287_NUM_GPIO;
2503 else if (AR_SREV_9285_12_OR_LATER(ah))
2504 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2505 else if (AR_SREV_9280_20_OR_LATER(ah))
2506 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2508 pCap->num_gpio_pins = AR_NUM_GPIO;
2510 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah))
2511 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2513 pCap->rts_aggr_limit = (8 * 1024);
2515 #ifdef CONFIG_ATH9K_RFKILL
2516 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2517 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2519 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2520 ah->rfkill_polarity =
2521 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2523 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2526 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
2527 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2529 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2531 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2532 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2534 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2536 if (AR_SREV_9300_20_OR_LATER(ah)) {
2537 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
2538 if (!AR_SREV_9330(ah) && !AR_SREV_9485(ah) && !AR_SREV_9565(ah))
2539 pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
2541 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2542 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2543 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2544 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2545 pCap->txs_len = sizeof(struct ar9003_txs);
2547 pCap->tx_desc_len = sizeof(struct ath_desc);
2548 if (AR_SREV_9280_20(ah))
2549 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
2552 if (AR_SREV_9300_20_OR_LATER(ah))
2553 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2555 if (AR_SREV_9300_20_OR_LATER(ah))
2556 ah->ent_mode = REG_READ(ah, AR_ENT_OTP);
2558 if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah))
2559 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
2561 if (AR_SREV_9285(ah)) {
2562 if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) {
2564 ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2565 if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1)) {
2566 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2567 ath_info(common, "Enable LNA combining\n");
2572 if (AR_SREV_9300_20_OR_LATER(ah)) {
2573 if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
2574 pCap->hw_caps |= ATH9K_HW_CAP_APM;
2577 if (AR_SREV_9330(ah) || AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
2578 ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2579 if ((ant_div_ctl1 >> 0x6) == 0x3) {
2580 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2581 ath_info(common, "Enable LNA combining\n");
2585 if (ath9k_hw_dfs_tested(ah))
2586 pCap->hw_caps |= ATH9K_HW_CAP_DFS;
2588 tx_chainmask = pCap->tx_chainmask;
2589 rx_chainmask = pCap->rx_chainmask;
2590 while (tx_chainmask || rx_chainmask) {
2591 if (tx_chainmask & BIT(0))
2592 pCap->max_txchains++;
2593 if (rx_chainmask & BIT(0))
2594 pCap->max_rxchains++;
2600 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
2601 if (!(ah->ent_mode & AR_ENT_OTP_49GHZ_DISABLE))
2602 pCap->hw_caps |= ATH9K_HW_CAP_MCI;
2604 if (AR_SREV_9462_20_OR_LATER(ah))
2605 pCap->hw_caps |= ATH9K_HW_CAP_RTT;
2608 if (AR_SREV_9462(ah))
2609 pCap->hw_caps |= ATH9K_HW_WOW_DEVICE_CAPABLE;
2611 if (AR_SREV_9300_20_OR_LATER(ah) &&
2612 ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
2613 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
2616 * Fast channel change across bands is available
2617 * only for AR9462 and AR9565.
2619 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
2620 pCap->hw_caps |= ATH9K_HW_CAP_FCC_BAND_SWITCH;
2625 /****************************/
2626 /* GPIO / RFKILL / Antennae */
2627 /****************************/
2629 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2633 u32 gpio_shift, tmp;
2636 addr = AR_GPIO_OUTPUT_MUX3;
2638 addr = AR_GPIO_OUTPUT_MUX2;
2640 addr = AR_GPIO_OUTPUT_MUX1;
2642 gpio_shift = (gpio % 6) * 5;
2644 if (AR_SREV_9280_20_OR_LATER(ah)
2645 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2646 REG_RMW(ah, addr, (type << gpio_shift),
2647 (0x1f << gpio_shift));
2649 tmp = REG_READ(ah, addr);
2650 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2651 tmp &= ~(0x1f << gpio_shift);
2652 tmp |= (type << gpio_shift);
2653 REG_WRITE(ah, addr, tmp);
2657 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2661 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2663 if (AR_DEVID_7010(ah)) {
2665 REG_RMW(ah, AR7010_GPIO_OE,
2666 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2667 (AR7010_GPIO_OE_MASK << gpio_shift));
2671 gpio_shift = gpio << 1;
2674 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2675 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2677 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2679 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2681 #define MS_REG_READ(x, y) \
2682 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2684 if (gpio >= ah->caps.num_gpio_pins)
2687 if (AR_DEVID_7010(ah)) {
2689 val = REG_READ(ah, AR7010_GPIO_IN);
2690 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2691 } else if (AR_SREV_9300_20_OR_LATER(ah))
2692 return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
2693 AR_GPIO_BIT(gpio)) != 0;
2694 else if (AR_SREV_9271(ah))
2695 return MS_REG_READ(AR9271, gpio) != 0;
2696 else if (AR_SREV_9287_11_OR_LATER(ah))
2697 return MS_REG_READ(AR9287, gpio) != 0;
2698 else if (AR_SREV_9285_12_OR_LATER(ah))
2699 return MS_REG_READ(AR9285, gpio) != 0;
2700 else if (AR_SREV_9280_20_OR_LATER(ah))
2701 return MS_REG_READ(AR928X, gpio) != 0;
2703 return MS_REG_READ(AR, gpio) != 0;
2705 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2707 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2712 if (AR_DEVID_7010(ah)) {
2714 REG_RMW(ah, AR7010_GPIO_OE,
2715 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2716 (AR7010_GPIO_OE_MASK << gpio_shift));
2720 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2721 gpio_shift = 2 * gpio;
2724 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2725 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2727 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2729 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2731 if (AR_DEVID_7010(ah)) {
2733 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2738 if (AR_SREV_9271(ah))
2741 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2744 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2746 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2748 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2750 EXPORT_SYMBOL(ath9k_hw_setantenna);
2752 /*********************/
2753 /* General Operation */
2754 /*********************/
2756 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2758 u32 bits = REG_READ(ah, AR_RX_FILTER);
2759 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2761 if (phybits & AR_PHY_ERR_RADAR)
2762 bits |= ATH9K_RX_FILTER_PHYRADAR;
2763 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2764 bits |= ATH9K_RX_FILTER_PHYERR;
2768 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2770 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2774 ENABLE_REGWRITE_BUFFER(ah);
2776 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
2777 bits |= ATH9K_RX_FILTER_CONTROL_WRAPPER;
2779 REG_WRITE(ah, AR_RX_FILTER, bits);
2782 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2783 phybits |= AR_PHY_ERR_RADAR;
2784 if (bits & ATH9K_RX_FILTER_PHYERR)
2785 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2786 REG_WRITE(ah, AR_PHY_ERR, phybits);
2789 REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2791 REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2793 REGWRITE_BUFFER_FLUSH(ah);
2795 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2797 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2799 if (ath9k_hw_mci_is_enabled(ah))
2800 ar9003_mci_bt_gain_ctrl(ah);
2802 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2805 ath9k_hw_init_pll(ah, NULL);
2806 ah->htc_reset_init = true;
2809 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2811 bool ath9k_hw_disable(struct ath_hw *ah)
2813 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2816 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2819 ath9k_hw_init_pll(ah, NULL);
2822 EXPORT_SYMBOL(ath9k_hw_disable);
2824 static int get_antenna_gain(struct ath_hw *ah, struct ath9k_channel *chan)
2826 enum eeprom_param gain_param;
2828 if (IS_CHAN_2GHZ(chan))
2829 gain_param = EEP_ANTENNA_GAIN_2G;
2831 gain_param = EEP_ANTENNA_GAIN_5G;
2833 return ah->eep_ops->get_eeprom(ah, gain_param);
2836 void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan,
2839 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2840 struct ieee80211_channel *channel;
2841 int chan_pwr, new_pwr, max_gain;
2842 int ant_gain, ant_reduction = 0;
2847 channel = chan->chan;
2848 chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER);
2849 new_pwr = min_t(int, chan_pwr, reg->power_limit);
2850 max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2;
2852 ant_gain = get_antenna_gain(ah, chan);
2853 if (ant_gain > max_gain)
2854 ant_reduction = ant_gain - max_gain;
2856 ah->eep_ops->set_txpower(ah, chan,
2857 ath9k_regd_get_ctl(reg, chan),
2858 ant_reduction, new_pwr, test);
2861 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
2863 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2864 struct ath9k_channel *chan = ah->curchan;
2865 struct ieee80211_channel *channel = chan->chan;
2867 reg->power_limit = min_t(u32, limit, MAX_RATE_POWER);
2869 channel->max_power = MAX_RATE_POWER / 2;
2871 ath9k_hw_apply_txpower(ah, chan, test);
2874 channel->max_power = DIV_ROUND_UP(reg->max_power_level, 2);
2876 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2878 void ath9k_hw_setopmode(struct ath_hw *ah)
2880 ath9k_hw_set_operating_mode(ah, ah->opmode);
2882 EXPORT_SYMBOL(ath9k_hw_setopmode);
2884 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2886 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2887 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2889 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2891 void ath9k_hw_write_associd(struct ath_hw *ah)
2893 struct ath_common *common = ath9k_hw_common(ah);
2895 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2896 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2897 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2899 EXPORT_SYMBOL(ath9k_hw_write_associd);
2901 #define ATH9K_MAX_TSF_READ 10
2903 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2905 u32 tsf_lower, tsf_upper1, tsf_upper2;
2908 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2909 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2910 tsf_lower = REG_READ(ah, AR_TSF_L32);
2911 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2912 if (tsf_upper2 == tsf_upper1)
2914 tsf_upper1 = tsf_upper2;
2917 WARN_ON( i == ATH9K_MAX_TSF_READ );
2919 return (((u64)tsf_upper1 << 32) | tsf_lower);
2921 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2923 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2925 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2926 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2928 EXPORT_SYMBOL(ath9k_hw_settsf64);
2930 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2932 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2933 AH_TSF_WRITE_TIMEOUT))
2934 ath_dbg(ath9k_hw_common(ah), RESET,
2935 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2937 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2939 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2941 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, bool set)
2944 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2946 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2948 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2950 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2952 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2955 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2956 macmode = AR_2040_JOINED_RX_CLEAR;
2960 REG_WRITE(ah, AR_2040_MODE, macmode);
2963 /* HW Generic timers configuration */
2965 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2967 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2968 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2969 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2970 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2971 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2972 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2973 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2974 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2975 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2976 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2977 AR_NDP2_TIMER_MODE, 0x0002},
2978 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2979 AR_NDP2_TIMER_MODE, 0x0004},
2980 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2981 AR_NDP2_TIMER_MODE, 0x0008},
2982 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2983 AR_NDP2_TIMER_MODE, 0x0010},
2984 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2985 AR_NDP2_TIMER_MODE, 0x0020},
2986 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2987 AR_NDP2_TIMER_MODE, 0x0040},
2988 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2989 AR_NDP2_TIMER_MODE, 0x0080}
2992 /* HW generic timer primitives */
2994 /* compute and clear index of rightmost 1 */
2995 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
3005 return timer_table->gen_timer_index[b];
3008 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
3010 return REG_READ(ah, AR_TSF_L32);
3012 EXPORT_SYMBOL(ath9k_hw_gettsf32);
3014 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
3015 void (*trigger)(void *),
3016 void (*overflow)(void *),
3020 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3021 struct ath_gen_timer *timer;
3023 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
3027 /* allocate a hardware generic timer slot */
3028 timer_table->timers[timer_index] = timer;
3029 timer->index = timer_index;
3030 timer->trigger = trigger;
3031 timer->overflow = overflow;
3036 EXPORT_SYMBOL(ath_gen_timer_alloc);
3038 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
3039 struct ath_gen_timer *timer,
3043 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3044 u32 tsf, timer_next;
3046 BUG_ON(!timer_period);
3048 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
3050 tsf = ath9k_hw_gettsf32(ah);
3052 timer_next = tsf + trig_timeout;
3054 ath_dbg(ath9k_hw_common(ah), BTCOEX,
3055 "current tsf %x period %x timer_next %x\n",
3056 tsf, timer_period, timer_next);
3059 * Program generic timer registers
3061 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
3063 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
3065 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
3066 gen_tmr_configuration[timer->index].mode_mask);
3068 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
3070 * Starting from AR9462, each generic timer can select which tsf
3071 * to use. But we still follow the old rule, 0 - 7 use tsf and
3074 if ((timer->index < AR_GEN_TIMER_BANK_1_LEN))
3075 REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
3076 (1 << timer->index));
3078 REG_SET_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
3079 (1 << timer->index));
3082 /* Enable both trigger and thresh interrupt masks */
3083 REG_SET_BIT(ah, AR_IMR_S5,
3084 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
3085 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
3087 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
3089 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
3091 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3093 if ((timer->index < AR_FIRST_NDP_TIMER) ||
3094 (timer->index >= ATH_MAX_GEN_TIMER)) {
3098 /* Clear generic timer enable bits. */
3099 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
3100 gen_tmr_configuration[timer->index].mode_mask);
3102 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
3104 * Need to switch back to TSF if it was using TSF2.
3106 if ((timer->index >= AR_GEN_TIMER_BANK_1_LEN)) {
3107 REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
3108 (1 << timer->index));
3112 /* Disable both trigger and thresh interrupt masks */
3113 REG_CLR_BIT(ah, AR_IMR_S5,
3114 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
3115 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
3117 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
3119 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
3121 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
3123 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3125 /* free the hardware generic timer slot */
3126 timer_table->timers[timer->index] = NULL;
3129 EXPORT_SYMBOL(ath_gen_timer_free);
3132 * Generic Timer Interrupts handling
3134 void ath_gen_timer_isr(struct ath_hw *ah)
3136 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3137 struct ath_gen_timer *timer;
3138 struct ath_common *common = ath9k_hw_common(ah);
3139 u32 trigger_mask, thresh_mask, index;
3141 /* get hardware generic timer interrupt status */
3142 trigger_mask = ah->intr_gen_timer_trigger;
3143 thresh_mask = ah->intr_gen_timer_thresh;
3144 trigger_mask &= timer_table->timer_mask.val;
3145 thresh_mask &= timer_table->timer_mask.val;
3147 trigger_mask &= ~thresh_mask;
3149 while (thresh_mask) {
3150 index = rightmost_index(timer_table, &thresh_mask);
3151 timer = timer_table->timers[index];
3153 ath_dbg(common, BTCOEX, "TSF overflow for Gen timer %d\n",
3155 timer->overflow(timer->arg);
3158 while (trigger_mask) {
3159 index = rightmost_index(timer_table, &trigger_mask);
3160 timer = timer_table->timers[index];
3162 ath_dbg(common, BTCOEX,
3163 "Gen timer[%d] trigger\n", index);
3164 timer->trigger(timer->arg);
3167 EXPORT_SYMBOL(ath_gen_timer_isr);
3176 } ath_mac_bb_names[] = {
3177 /* Devices with external radios */
3178 { AR_SREV_VERSION_5416_PCI, "5416" },
3179 { AR_SREV_VERSION_5416_PCIE, "5418" },
3180 { AR_SREV_VERSION_9100, "9100" },
3181 { AR_SREV_VERSION_9160, "9160" },
3182 /* Single-chip solutions */
3183 { AR_SREV_VERSION_9280, "9280" },
3184 { AR_SREV_VERSION_9285, "9285" },
3185 { AR_SREV_VERSION_9287, "9287" },
3186 { AR_SREV_VERSION_9271, "9271" },
3187 { AR_SREV_VERSION_9300, "9300" },
3188 { AR_SREV_VERSION_9330, "9330" },
3189 { AR_SREV_VERSION_9340, "9340" },
3190 { AR_SREV_VERSION_9485, "9485" },
3191 { AR_SREV_VERSION_9462, "9462" },
3192 { AR_SREV_VERSION_9550, "9550" },
3193 { AR_SREV_VERSION_9565, "9565" },
3196 /* For devices with external radios */
3200 } ath_rf_names[] = {
3202 { AR_RAD5133_SREV_MAJOR, "5133" },
3203 { AR_RAD5122_SREV_MAJOR, "5122" },
3204 { AR_RAD2133_SREV_MAJOR, "2133" },
3205 { AR_RAD2122_SREV_MAJOR, "2122" }
3209 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
3211 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
3215 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
3216 if (ath_mac_bb_names[i].version == mac_bb_version) {
3217 return ath_mac_bb_names[i].name;
3225 * Return the RF name. "????" is returned if the RF is unknown.
3226 * Used for devices with external radios.
3228 static const char *ath9k_hw_rf_name(u16 rf_version)
3232 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
3233 if (ath_rf_names[i].version == rf_version) {
3234 return ath_rf_names[i].name;
3241 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
3245 /* chipsets >= AR9280 are single-chip */
3246 if (AR_SREV_9280_20_OR_LATER(ah)) {
3247 used = snprintf(hw_name, len,
3248 "Atheros AR%s Rev:%x",
3249 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3250 ah->hw_version.macRev);
3253 used = snprintf(hw_name, len,
3254 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
3255 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3256 ah->hw_version.macRev,
3257 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
3258 AR_RADIO_SREV_MAJOR)),
3259 ah->hw_version.phyRev);
3262 hw_name[used] = '\0';
3264 EXPORT_SYMBOL(ath9k_hw_name);