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 ath_common *common = ath9k_hw_common(ah);
134 struct ath9k_channel *chan = ah->curchan;
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 (!chan) /* should really check for CCK instead */
141 clockrate = ATH9K_CLOCK_RATE_CCK;
142 else if (IS_CHAN_2GHZ(chan))
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 (IS_CHAN_HT40(chan))
153 if (IS_CHAN_HALF_RATE(chan))
155 if (IS_CHAN_QUARTER_RATE(chan))
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,
195 if (IS_CHAN_HALF_RATE(chan))
197 else if (IS_CHAN_QUARTER_RATE(chan))
200 udelay(hw_delay + BASE_ACTIVATE_DELAY);
203 void ath9k_hw_write_array(struct ath_hw *ah, const struct ar5416IniArray *array,
204 int column, unsigned int *writecnt)
208 ENABLE_REGWRITE_BUFFER(ah);
209 for (r = 0; r < array->ia_rows; r++) {
210 REG_WRITE(ah, INI_RA(array, r, 0),
211 INI_RA(array, r, column));
214 REGWRITE_BUFFER_FLUSH(ah);
217 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
222 for (i = 0, retval = 0; i < n; i++) {
223 retval = (retval << 1) | (val & 1);
229 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
231 u32 frameLen, u16 rateix,
234 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
240 case WLAN_RC_PHY_CCK:
241 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
244 numBits = frameLen << 3;
245 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
247 case WLAN_RC_PHY_OFDM:
248 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
249 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
250 numBits = OFDM_PLCP_BITS + (frameLen << 3);
251 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
252 txTime = OFDM_SIFS_TIME_QUARTER
253 + OFDM_PREAMBLE_TIME_QUARTER
254 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
255 } else if (ah->curchan &&
256 IS_CHAN_HALF_RATE(ah->curchan)) {
257 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
258 numBits = OFDM_PLCP_BITS + (frameLen << 3);
259 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
260 txTime = OFDM_SIFS_TIME_HALF +
261 OFDM_PREAMBLE_TIME_HALF
262 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
264 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
265 numBits = OFDM_PLCP_BITS + (frameLen << 3);
266 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
267 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
268 + (numSymbols * OFDM_SYMBOL_TIME);
272 ath_err(ath9k_hw_common(ah),
273 "Unknown phy %u (rate ix %u)\n", phy, rateix);
280 EXPORT_SYMBOL(ath9k_hw_computetxtime);
282 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
283 struct ath9k_channel *chan,
284 struct chan_centers *centers)
288 if (!IS_CHAN_HT40(chan)) {
289 centers->ctl_center = centers->ext_center =
290 centers->synth_center = chan->channel;
294 if (IS_CHAN_HT40PLUS(chan)) {
295 centers->synth_center =
296 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
299 centers->synth_center =
300 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
304 centers->ctl_center =
305 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
306 /* 25 MHz spacing is supported by hw but not on upper layers */
307 centers->ext_center =
308 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
315 static void ath9k_hw_read_revisions(struct ath_hw *ah)
319 switch (ah->hw_version.devid) {
320 case AR5416_AR9100_DEVID:
321 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
323 case AR9300_DEVID_AR9330:
324 ah->hw_version.macVersion = AR_SREV_VERSION_9330;
325 if (ah->get_mac_revision) {
326 ah->hw_version.macRev = ah->get_mac_revision();
328 val = REG_READ(ah, AR_SREV);
329 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
332 case AR9300_DEVID_AR9340:
333 ah->hw_version.macVersion = AR_SREV_VERSION_9340;
334 val = REG_READ(ah, AR_SREV);
335 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
337 case AR9300_DEVID_QCA955X:
338 ah->hw_version.macVersion = AR_SREV_VERSION_9550;
342 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
345 val = REG_READ(ah, AR_SREV);
346 ah->hw_version.macVersion =
347 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
348 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
350 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
351 ah->is_pciexpress = true;
353 ah->is_pciexpress = (val &
354 AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
356 if (!AR_SREV_9100(ah))
357 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
359 ah->hw_version.macRev = val & AR_SREV_REVISION;
361 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
362 ah->is_pciexpress = true;
366 /************************************/
367 /* HW Attach, Detach, Init Routines */
368 /************************************/
370 static void ath9k_hw_disablepcie(struct ath_hw *ah)
372 if (!AR_SREV_5416(ah))
375 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
376 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
377 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
378 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
379 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
380 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
381 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
382 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
383 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
385 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
388 /* This should work for all families including legacy */
389 static bool ath9k_hw_chip_test(struct ath_hw *ah)
391 struct ath_common *common = ath9k_hw_common(ah);
392 u32 regAddr[2] = { AR_STA_ID0 };
394 static const u32 patternData[4] = {
395 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999
399 if (!AR_SREV_9300_20_OR_LATER(ah)) {
401 regAddr[1] = AR_PHY_BASE + (8 << 2);
405 for (i = 0; i < loop_max; i++) {
406 u32 addr = regAddr[i];
409 regHold[i] = REG_READ(ah, addr);
410 for (j = 0; j < 0x100; j++) {
411 wrData = (j << 16) | j;
412 REG_WRITE(ah, addr, wrData);
413 rdData = REG_READ(ah, addr);
414 if (rdData != wrData) {
416 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
417 addr, wrData, rdData);
421 for (j = 0; j < 4; j++) {
422 wrData = patternData[j];
423 REG_WRITE(ah, addr, wrData);
424 rdData = REG_READ(ah, addr);
425 if (wrData != rdData) {
427 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
428 addr, wrData, rdData);
432 REG_WRITE(ah, regAddr[i], regHold[i]);
439 static void ath9k_hw_init_config(struct ath_hw *ah)
443 ah->config.dma_beacon_response_time = 1;
444 ah->config.sw_beacon_response_time = 6;
445 ah->config.additional_swba_backoff = 0;
446 ah->config.ack_6mb = 0x0;
447 ah->config.cwm_ignore_extcca = 0;
448 ah->config.pcie_clock_req = 0;
449 ah->config.analog_shiftreg = 1;
451 for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
452 ah->config.spurchans[i][0] = AR_NO_SPUR;
453 ah->config.spurchans[i][1] = AR_NO_SPUR;
456 ah->config.rx_intr_mitigation = true;
457 ah->config.pcieSerDesWrite = true;
460 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
461 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
462 * This means we use it for all AR5416 devices, and the few
463 * minor PCI AR9280 devices out there.
465 * Serialization is required because these devices do not handle
466 * well the case of two concurrent reads/writes due to the latency
467 * involved. During one read/write another read/write can be issued
468 * on another CPU while the previous read/write may still be working
469 * on our hardware, if we hit this case the hardware poops in a loop.
470 * We prevent this by serializing reads and writes.
472 * This issue is not present on PCI-Express devices or pre-AR5416
473 * devices (legacy, 802.11abg).
475 if (num_possible_cpus() > 1)
476 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
479 static void ath9k_hw_init_defaults(struct ath_hw *ah)
481 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
483 regulatory->country_code = CTRY_DEFAULT;
484 regulatory->power_limit = MAX_RATE_POWER;
486 ah->hw_version.magic = AR5416_MAGIC;
487 ah->hw_version.subvendorid = 0;
490 ah->sta_id1_defaults =
491 AR_STA_ID1_CRPT_MIC_ENABLE |
492 AR_STA_ID1_MCAST_KSRCH;
493 if (AR_SREV_9100(ah))
494 ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX;
495 ah->slottime = ATH9K_SLOT_TIME_9;
496 ah->globaltxtimeout = (u32) -1;
497 ah->power_mode = ATH9K_PM_UNDEFINED;
498 ah->htc_reset_init = true;
501 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
503 struct ath_common *common = ath9k_hw_common(ah);
507 static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
510 for (i = 0; i < 3; i++) {
511 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
513 common->macaddr[2 * i] = eeval >> 8;
514 common->macaddr[2 * i + 1] = eeval & 0xff;
516 if (sum == 0 || sum == 0xffff * 3)
517 return -EADDRNOTAVAIL;
522 static int ath9k_hw_post_init(struct ath_hw *ah)
524 struct ath_common *common = ath9k_hw_common(ah);
527 if (common->bus_ops->ath_bus_type != ATH_USB) {
528 if (!ath9k_hw_chip_test(ah))
532 if (!AR_SREV_9300_20_OR_LATER(ah)) {
533 ecode = ar9002_hw_rf_claim(ah);
538 ecode = ath9k_hw_eeprom_init(ah);
542 ath_dbg(ath9k_hw_common(ah), CONFIG, "Eeprom VER: %d, REV: %d\n",
543 ah->eep_ops->get_eeprom_ver(ah),
544 ah->eep_ops->get_eeprom_rev(ah));
546 ath9k_hw_ani_init(ah);
549 * EEPROM needs to be initialized before we do this.
550 * This is required for regulatory compliance.
552 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
553 u16 regdmn = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
554 if ((regdmn & 0xF0) == CTL_FCC) {
555 ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9462_FCC_2GHZ;
556 ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9462_FCC_5GHZ;
563 static int ath9k_hw_attach_ops(struct ath_hw *ah)
565 if (!AR_SREV_9300_20_OR_LATER(ah))
566 return ar9002_hw_attach_ops(ah);
568 ar9003_hw_attach_ops(ah);
572 /* Called for all hardware families */
573 static int __ath9k_hw_init(struct ath_hw *ah)
575 struct ath_common *common = ath9k_hw_common(ah);
578 ath9k_hw_read_revisions(ah);
581 * Read back AR_WA into a permanent copy and set bits 14 and 17.
582 * We need to do this to avoid RMW of this register. We cannot
583 * read the reg when chip is asleep.
585 if (AR_SREV_9300_20_OR_LATER(ah)) {
586 ah->WARegVal = REG_READ(ah, AR_WA);
587 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
588 AR_WA_ASPM_TIMER_BASED_DISABLE);
591 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
592 ath_err(common, "Couldn't reset chip\n");
596 if (AR_SREV_9565(ah)) {
597 ah->WARegVal |= AR_WA_BIT22;
598 REG_WRITE(ah, AR_WA, ah->WARegVal);
601 ath9k_hw_init_defaults(ah);
602 ath9k_hw_init_config(ah);
604 r = ath9k_hw_attach_ops(ah);
608 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
609 ath_err(common, "Couldn't wakeup chip\n");
613 if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
614 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
615 ((AR_SREV_9160(ah) || AR_SREV_9280(ah) || AR_SREV_9287(ah)) &&
616 !ah->is_pciexpress)) {
617 ah->config.serialize_regmode =
620 ah->config.serialize_regmode =
625 ath_dbg(common, RESET, "serialize_regmode is %d\n",
626 ah->config.serialize_regmode);
628 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
629 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
631 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
633 switch (ah->hw_version.macVersion) {
634 case AR_SREV_VERSION_5416_PCI:
635 case AR_SREV_VERSION_5416_PCIE:
636 case AR_SREV_VERSION_9160:
637 case AR_SREV_VERSION_9100:
638 case AR_SREV_VERSION_9280:
639 case AR_SREV_VERSION_9285:
640 case AR_SREV_VERSION_9287:
641 case AR_SREV_VERSION_9271:
642 case AR_SREV_VERSION_9300:
643 case AR_SREV_VERSION_9330:
644 case AR_SREV_VERSION_9485:
645 case AR_SREV_VERSION_9340:
646 case AR_SREV_VERSION_9462:
647 case AR_SREV_VERSION_9550:
648 case AR_SREV_VERSION_9565:
652 "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
653 ah->hw_version.macVersion, ah->hw_version.macRev);
657 if (AR_SREV_9271(ah) || AR_SREV_9100(ah) || AR_SREV_9340(ah) ||
658 AR_SREV_9330(ah) || AR_SREV_9550(ah))
659 ah->is_pciexpress = false;
661 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
662 ath9k_hw_init_cal_settings(ah);
664 ah->ani_function = ATH9K_ANI_ALL;
665 if (!AR_SREV_9300_20_OR_LATER(ah))
666 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
668 if (!ah->is_pciexpress)
669 ath9k_hw_disablepcie(ah);
671 r = ath9k_hw_post_init(ah);
675 ath9k_hw_init_mode_gain_regs(ah);
676 r = ath9k_hw_fill_cap_info(ah);
680 r = ath9k_hw_init_macaddr(ah);
682 ath_err(common, "Failed to initialize MAC address\n");
686 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
687 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
689 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
691 if (AR_SREV_9330(ah))
692 ah->bb_watchdog_timeout_ms = 85;
694 ah->bb_watchdog_timeout_ms = 25;
696 common->state = ATH_HW_INITIALIZED;
701 int ath9k_hw_init(struct ath_hw *ah)
704 struct ath_common *common = ath9k_hw_common(ah);
706 /* These are all the AR5008/AR9001/AR9002/AR9003 hardware family of chipsets */
707 switch (ah->hw_version.devid) {
708 case AR5416_DEVID_PCI:
709 case AR5416_DEVID_PCIE:
710 case AR5416_AR9100_DEVID:
711 case AR9160_DEVID_PCI:
712 case AR9280_DEVID_PCI:
713 case AR9280_DEVID_PCIE:
714 case AR9285_DEVID_PCIE:
715 case AR9287_DEVID_PCI:
716 case AR9287_DEVID_PCIE:
717 case AR2427_DEVID_PCIE:
718 case AR9300_DEVID_PCIE:
719 case AR9300_DEVID_AR9485_PCIE:
720 case AR9300_DEVID_AR9330:
721 case AR9300_DEVID_AR9340:
722 case AR9300_DEVID_QCA955X:
723 case AR9300_DEVID_AR9580:
724 case AR9300_DEVID_AR9462:
725 case AR9485_DEVID_AR1111:
726 case AR9300_DEVID_AR9565:
729 if (common->bus_ops->ath_bus_type == ATH_USB)
731 ath_err(common, "Hardware device ID 0x%04x not supported\n",
732 ah->hw_version.devid);
736 ret = __ath9k_hw_init(ah);
739 "Unable to initialize hardware; initialization status: %d\n",
746 EXPORT_SYMBOL(ath9k_hw_init);
748 static void ath9k_hw_init_qos(struct ath_hw *ah)
750 ENABLE_REGWRITE_BUFFER(ah);
752 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
753 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
755 REG_WRITE(ah, AR_QOS_NO_ACK,
756 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
757 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
758 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
760 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
761 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
762 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
763 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
764 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
766 REGWRITE_BUFFER_FLUSH(ah);
769 u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
771 struct ath_common *common = ath9k_hw_common(ah);
774 REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
776 REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
778 while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0) {
782 if (WARN_ON_ONCE(i >= 100)) {
783 ath_err(common, "PLL4 meaurement not done\n");
790 return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
792 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
794 static void ath9k_hw_init_pll(struct ath_hw *ah,
795 struct ath9k_channel *chan)
799 if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
800 /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */
801 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
802 AR_CH0_BB_DPLL2_PLL_PWD, 0x1);
803 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
804 AR_CH0_DPLL2_KD, 0x40);
805 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
806 AR_CH0_DPLL2_KI, 0x4);
808 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
809 AR_CH0_BB_DPLL1_REFDIV, 0x5);
810 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
811 AR_CH0_BB_DPLL1_NINI, 0x58);
812 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
813 AR_CH0_BB_DPLL1_NFRAC, 0x0);
815 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
816 AR_CH0_BB_DPLL2_OUTDIV, 0x1);
817 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
818 AR_CH0_BB_DPLL2_LOCAL_PLL, 0x1);
819 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
820 AR_CH0_BB_DPLL2_EN_NEGTRIG, 0x1);
822 /* program BB PLL phase_shift to 0x6 */
823 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
824 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x6);
826 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
827 AR_CH0_BB_DPLL2_PLL_PWD, 0x0);
829 } else if (AR_SREV_9330(ah)) {
830 u32 ddr_dpll2, pll_control2, kd;
832 if (ah->is_clk_25mhz) {
833 ddr_dpll2 = 0x18e82f01;
834 pll_control2 = 0xe04a3d;
837 ddr_dpll2 = 0x19e82f01;
838 pll_control2 = 0x886666;
842 /* program DDR PLL ki and kd value */
843 REG_WRITE(ah, AR_CH0_DDR_DPLL2, ddr_dpll2);
845 /* program DDR PLL phase_shift */
846 REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3,
847 AR_CH0_DPLL3_PHASE_SHIFT, 0x1);
849 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
852 /* program refdiv, nint, frac to RTC register */
853 REG_WRITE(ah, AR_RTC_PLL_CONTROL2, pll_control2);
855 /* program BB PLL kd and ki value */
856 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KD, kd);
857 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KI, 0x06);
859 /* program BB PLL phase_shift */
860 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
861 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x1);
862 } else if (AR_SREV_9340(ah) || AR_SREV_9550(ah)) {
863 u32 regval, pll2_divint, pll2_divfrac, refdiv;
865 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
868 REG_SET_BIT(ah, AR_PHY_PLL_MODE, 0x1 << 16);
871 if (ah->is_clk_25mhz) {
873 pll2_divfrac = 0x1eb85;
876 if (AR_SREV_9340(ah)) {
882 pll2_divfrac = 0x26666;
887 regval = REG_READ(ah, AR_PHY_PLL_MODE);
888 regval |= (0x1 << 16);
889 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
892 REG_WRITE(ah, AR_PHY_PLL_CONTROL, (refdiv << 27) |
893 (pll2_divint << 18) | pll2_divfrac);
896 regval = REG_READ(ah, AR_PHY_PLL_MODE);
897 if (AR_SREV_9340(ah))
898 regval = (regval & 0x80071fff) | (0x1 << 30) |
899 (0x1 << 13) | (0x4 << 26) | (0x18 << 19);
901 regval = (regval & 0x80071fff) | (0x3 << 30) |
902 (0x1 << 13) | (0x4 << 26) | (0x60 << 19);
903 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
904 REG_WRITE(ah, AR_PHY_PLL_MODE,
905 REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff);
909 pll = ath9k_hw_compute_pll_control(ah, chan);
910 if (AR_SREV_9565(ah))
912 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
914 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
918 /* Switch the core clock for ar9271 to 117Mhz */
919 if (AR_SREV_9271(ah)) {
921 REG_WRITE(ah, 0x50040, 0x304);
924 udelay(RTC_PLL_SETTLE_DELAY);
926 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
928 if (AR_SREV_9340(ah) || AR_SREV_9550(ah)) {
929 if (ah->is_clk_25mhz) {
930 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x17c << 1);
931 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f3d7);
932 REG_WRITE(ah, AR_SLP32_INC, 0x0001e7ae);
934 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x261 << 1);
935 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f400);
936 REG_WRITE(ah, AR_SLP32_INC, 0x0001e800);
942 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
943 enum nl80211_iftype opmode)
945 u32 sync_default = AR_INTR_SYNC_DEFAULT;
946 u32 imr_reg = AR_IMR_TXERR |
952 if (AR_SREV_9340(ah) || AR_SREV_9550(ah))
953 sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
955 if (AR_SREV_9300_20_OR_LATER(ah)) {
956 imr_reg |= AR_IMR_RXOK_HP;
957 if (ah->config.rx_intr_mitigation)
958 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
960 imr_reg |= AR_IMR_RXOK_LP;
963 if (ah->config.rx_intr_mitigation)
964 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
966 imr_reg |= AR_IMR_RXOK;
969 if (ah->config.tx_intr_mitigation)
970 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
972 imr_reg |= AR_IMR_TXOK;
974 ENABLE_REGWRITE_BUFFER(ah);
976 REG_WRITE(ah, AR_IMR, imr_reg);
977 ah->imrs2_reg |= AR_IMR_S2_GTT;
978 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
980 if (!AR_SREV_9100(ah)) {
981 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
982 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default);
983 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
986 REGWRITE_BUFFER_FLUSH(ah);
988 if (AR_SREV_9300_20_OR_LATER(ah)) {
989 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
990 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
991 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
992 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
996 static void ath9k_hw_set_sifs_time(struct ath_hw *ah, u32 us)
998 u32 val = ath9k_hw_mac_to_clks(ah, us - 2);
999 val = min(val, (u32) 0xFFFF);
1000 REG_WRITE(ah, AR_D_GBL_IFS_SIFS, val);
1003 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
1005 u32 val = ath9k_hw_mac_to_clks(ah, us);
1006 val = min(val, (u32) 0xFFFF);
1007 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
1010 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
1012 u32 val = ath9k_hw_mac_to_clks(ah, us);
1013 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
1014 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
1017 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
1019 u32 val = ath9k_hw_mac_to_clks(ah, us);
1020 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
1021 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
1024 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
1027 ath_dbg(ath9k_hw_common(ah), XMIT, "bad global tx timeout %u\n",
1029 ah->globaltxtimeout = (u32) -1;
1032 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
1033 ah->globaltxtimeout = tu;
1038 void ath9k_hw_init_global_settings(struct ath_hw *ah)
1040 struct ath_common *common = ath9k_hw_common(ah);
1041 const struct ath9k_channel *chan = ah->curchan;
1042 int acktimeout, ctstimeout, ack_offset = 0;
1045 int rx_lat = 0, tx_lat = 0, eifs = 0;
1048 ath_dbg(ath9k_hw_common(ah), RESET, "ah->misc_mode 0x%x\n",
1054 if (ah->misc_mode != 0)
1055 REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
1057 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1063 if (IS_CHAN_5GHZ(chan))
1068 if (IS_CHAN_HALF_RATE(chan)) {
1072 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1078 } else if (IS_CHAN_QUARTER_RATE(chan)) {
1080 rx_lat = (rx_lat * 4) - 1;
1082 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1089 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1090 eifs = AR_D_GBL_IFS_EIFS_ASYNC_FIFO;
1091 reg = AR_USEC_ASYNC_FIFO;
1093 eifs = REG_READ(ah, AR_D_GBL_IFS_EIFS)/
1095 reg = REG_READ(ah, AR_USEC);
1097 rx_lat = MS(reg, AR_USEC_RX_LAT);
1098 tx_lat = MS(reg, AR_USEC_TX_LAT);
1100 slottime = ah->slottime;
1103 /* As defined by IEEE 802.11-2007 17.3.8.6 */
1104 slottime += 3 * ah->coverage_class;
1105 acktimeout = slottime + sifstime + ack_offset;
1106 ctstimeout = acktimeout;
1109 * Workaround for early ACK timeouts, add an offset to match the
1110 * initval's 64us ack timeout value. Use 48us for the CTS timeout.
1111 * This was initially only meant to work around an issue with delayed
1112 * BA frames in some implementations, but it has been found to fix ACK
1113 * timeout issues in other cases as well.
1115 if (IS_CHAN_2GHZ(chan) &&
1116 !IS_CHAN_HALF_RATE(chan) && !IS_CHAN_QUARTER_RATE(chan)) {
1117 acktimeout += 64 - sifstime - ah->slottime;
1118 ctstimeout += 48 - sifstime - ah->slottime;
1121 ath9k_hw_set_sifs_time(ah, sifstime);
1122 ath9k_hw_setslottime(ah, slottime);
1123 ath9k_hw_set_ack_timeout(ah, acktimeout);
1124 ath9k_hw_set_cts_timeout(ah, ctstimeout);
1125 if (ah->globaltxtimeout != (u32) -1)
1126 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
1128 REG_WRITE(ah, AR_D_GBL_IFS_EIFS, ath9k_hw_mac_to_clks(ah, eifs));
1129 REG_RMW(ah, AR_USEC,
1130 (common->clockrate - 1) |
1131 SM(rx_lat, AR_USEC_RX_LAT) |
1132 SM(tx_lat, AR_USEC_TX_LAT),
1133 AR_USEC_TX_LAT | AR_USEC_RX_LAT | AR_USEC_USEC);
1136 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
1138 void ath9k_hw_deinit(struct ath_hw *ah)
1140 struct ath_common *common = ath9k_hw_common(ah);
1142 if (common->state < ATH_HW_INITIALIZED)
1145 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
1147 EXPORT_SYMBOL(ath9k_hw_deinit);
1153 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
1155 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
1157 if (IS_CHAN_2GHZ(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 band_switch = IS_CHAN_5GHZ(ah->curchan) != IS_CHAN_5GHZ(chan);
1506 mode_diff = (chan->channelFlags != ah->curchan->channelFlags);
1509 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1510 if (ath9k_hw_numtxpending(ah, qnum)) {
1511 ath_dbg(common, QUEUE,
1512 "Transmit frames pending on queue %d\n", qnum);
1517 if (!ath9k_hw_rfbus_req(ah)) {
1518 ath_err(common, "Could not kill baseband RX\n");
1522 if (band_switch || mode_diff) {
1523 ath9k_hw_mark_phy_inactive(ah);
1527 ath9k_hw_init_pll(ah, chan);
1529 if (ath9k_hw_fast_chan_change(ah, chan, &ini_reloaded)) {
1530 ath_err(common, "Failed to do fast channel change\n");
1535 ath9k_hw_set_channel_regs(ah, chan);
1537 r = ath9k_hw_rf_set_freq(ah, chan);
1539 ath_err(common, "Failed to set channel\n");
1542 ath9k_hw_set_clockrate(ah);
1543 ath9k_hw_apply_txpower(ah, chan, false);
1545 ath9k_hw_set_delta_slope(ah, chan);
1546 ath9k_hw_spur_mitigate_freq(ah, chan);
1548 if (band_switch || ini_reloaded)
1549 ah->eep_ops->set_board_values(ah, chan);
1551 ath9k_hw_init_bb(ah, chan);
1552 ath9k_hw_rfbus_done(ah);
1554 if (band_switch || ini_reloaded) {
1555 ah->ah_flags |= AH_FASTCC;
1556 ath9k_hw_init_cal(ah, chan);
1557 ah->ah_flags &= ~AH_FASTCC;
1563 static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
1565 u32 gpio_mask = ah->gpio_mask;
1568 for (i = 0; gpio_mask; i++, gpio_mask >>= 1) {
1569 if (!(gpio_mask & 1))
1572 ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
1573 ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
1577 static bool ath9k_hw_check_dcs(u32 dma_dbg, u32 num_dcu_states,
1578 int *hang_state, int *hang_pos)
1580 static u32 dcu_chain_state[] = {5, 6, 9}; /* DCU chain stuck states */
1581 u32 chain_state, dcs_pos, i;
1583 for (dcs_pos = 0; dcs_pos < num_dcu_states; dcs_pos++) {
1584 chain_state = (dma_dbg >> (5 * dcs_pos)) & 0x1f;
1585 for (i = 0; i < 3; i++) {
1586 if (chain_state == dcu_chain_state[i]) {
1587 *hang_state = chain_state;
1588 *hang_pos = dcs_pos;
1596 #define DCU_COMPLETE_STATE 1
1597 #define DCU_COMPLETE_STATE_MASK 0x3
1598 #define NUM_STATUS_READS 50
1599 static bool ath9k_hw_detect_mac_hang(struct ath_hw *ah)
1601 u32 chain_state, comp_state, dcs_reg = AR_DMADBG_4;
1602 u32 i, hang_pos, hang_state, num_state = 6;
1604 comp_state = REG_READ(ah, AR_DMADBG_6);
1606 if ((comp_state & DCU_COMPLETE_STATE_MASK) != DCU_COMPLETE_STATE) {
1607 ath_dbg(ath9k_hw_common(ah), RESET,
1608 "MAC Hang signature not found at DCU complete\n");
1612 chain_state = REG_READ(ah, dcs_reg);
1613 if (ath9k_hw_check_dcs(chain_state, num_state, &hang_state, &hang_pos))
1614 goto hang_check_iter;
1616 dcs_reg = AR_DMADBG_5;
1618 chain_state = REG_READ(ah, dcs_reg);
1619 if (ath9k_hw_check_dcs(chain_state, num_state, &hang_state, &hang_pos))
1620 goto hang_check_iter;
1622 ath_dbg(ath9k_hw_common(ah), RESET,
1623 "MAC Hang signature 1 not found\n");
1627 ath_dbg(ath9k_hw_common(ah), RESET,
1628 "DCU registers: chain %08x complete %08x Hang: state %d pos %d\n",
1629 chain_state, comp_state, hang_state, hang_pos);
1631 for (i = 0; i < NUM_STATUS_READS; i++) {
1632 chain_state = REG_READ(ah, dcs_reg);
1633 chain_state = (chain_state >> (5 * hang_pos)) & 0x1f;
1634 comp_state = REG_READ(ah, AR_DMADBG_6);
1636 if (((comp_state & DCU_COMPLETE_STATE_MASK) !=
1637 DCU_COMPLETE_STATE) ||
1638 (chain_state != hang_state))
1642 ath_dbg(ath9k_hw_common(ah), RESET, "MAC Hang signature 1 found\n");
1647 void ath9k_hw_check_nav(struct ath_hw *ah)
1649 struct ath_common *common = ath9k_hw_common(ah);
1652 val = REG_READ(ah, AR_NAV);
1653 if (val != 0xdeadbeef && val > 0x7fff) {
1654 ath_dbg(common, BSTUCK, "Abnormal NAV: 0x%x\n", val);
1655 REG_WRITE(ah, AR_NAV, 0);
1658 EXPORT_SYMBOL(ath9k_hw_check_nav);
1660 bool ath9k_hw_check_alive(struct ath_hw *ah)
1665 if (AR_SREV_9300(ah))
1666 return !ath9k_hw_detect_mac_hang(ah);
1668 if (AR_SREV_9285_12_OR_LATER(ah))
1672 reg = REG_READ(ah, AR_OBS_BUS_1);
1674 if ((reg & 0x7E7FFFEF) == 0x00702400)
1677 switch (reg & 0x7E000B00) {
1685 } while (count-- > 0);
1689 EXPORT_SYMBOL(ath9k_hw_check_alive);
1691 static void ath9k_hw_init_mfp(struct ath_hw *ah)
1693 /* Setup MFP options for CCMP */
1694 if (AR_SREV_9280_20_OR_LATER(ah)) {
1695 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1696 * frames when constructing CCMP AAD. */
1697 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1699 ah->sw_mgmt_crypto = false;
1700 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1701 /* Disable hardware crypto for management frames */
1702 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1703 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1704 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1705 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1706 ah->sw_mgmt_crypto = true;
1708 ah->sw_mgmt_crypto = true;
1712 static void ath9k_hw_reset_opmode(struct ath_hw *ah,
1713 u32 macStaId1, u32 saveDefAntenna)
1715 struct ath_common *common = ath9k_hw_common(ah);
1717 ENABLE_REGWRITE_BUFFER(ah);
1719 REG_RMW(ah, AR_STA_ID1, macStaId1
1720 | AR_STA_ID1_RTS_USE_DEF
1721 | (ah->config.ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1722 | ah->sta_id1_defaults,
1723 ~AR_STA_ID1_SADH_MASK);
1724 ath_hw_setbssidmask(common);
1725 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1726 ath9k_hw_write_associd(ah);
1727 REG_WRITE(ah, AR_ISR, ~0);
1728 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1730 REGWRITE_BUFFER_FLUSH(ah);
1732 ath9k_hw_set_operating_mode(ah, ah->opmode);
1735 static void ath9k_hw_init_queues(struct ath_hw *ah)
1739 ENABLE_REGWRITE_BUFFER(ah);
1741 for (i = 0; i < AR_NUM_DCU; i++)
1742 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1744 REGWRITE_BUFFER_FLUSH(ah);
1747 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
1748 ath9k_hw_resettxqueue(ah, i);
1752 * For big endian systems turn on swapping for descriptors
1754 static void ath9k_hw_init_desc(struct ath_hw *ah)
1756 struct ath_common *common = ath9k_hw_common(ah);
1758 if (AR_SREV_9100(ah)) {
1760 mask = REG_READ(ah, AR_CFG);
1761 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1762 ath_dbg(common, RESET, "CFG Byte Swap Set 0x%x\n",
1765 mask = INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1766 REG_WRITE(ah, AR_CFG, mask);
1767 ath_dbg(common, RESET, "Setting CFG 0x%x\n",
1768 REG_READ(ah, AR_CFG));
1771 if (common->bus_ops->ath_bus_type == ATH_USB) {
1772 /* Configure AR9271 target WLAN */
1773 if (AR_SREV_9271(ah))
1774 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1776 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1779 else if (AR_SREV_9330(ah) || AR_SREV_9340(ah) ||
1781 REG_RMW(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB, 0);
1783 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1789 * Fast channel change:
1790 * (Change synthesizer based on channel freq without resetting chip)
1792 static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan)
1794 struct ath_common *common = ath9k_hw_common(ah);
1795 struct ath9k_hw_capabilities *pCap = &ah->caps;
1798 if (AR_SREV_9280(ah) && common->bus_ops->ath_bus_type == ATH_PCI)
1801 if (ah->chip_fullsleep)
1807 if (chan->channel == ah->curchan->channel)
1810 if ((ah->curchan->channelFlags | chan->channelFlags) &
1811 (CHANNEL_HALF | CHANNEL_QUARTER))
1815 * If cross-band fcc is not supoprted, bail out if channelFlags differ.
1817 if (!(pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) &&
1818 chan->channelFlags != ah->curchan->channelFlags)
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 (!test_bit(TXIQCAL_DONE, &ah->caldata->cal_flags) ||
1830 !test_bit(TXCLCAL_DONE, &ah->caldata->cal_flags) ||
1831 !test_bit(RTT_DONE, &ah->caldata->cal_flags))))
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 /* Operating channel changed, reset channel calibration data */
1883 memset(caldata, 0, sizeof(*caldata));
1884 ath9k_init_nfcal_hist_buffer(ah, chan);
1885 } else if (caldata) {
1886 clear_bit(PAPRD_PACKET_SENT, &caldata->cal_flags);
1888 ah->noise = ath9k_hw_getchan_noise(ah, chan, chan->noisefloor);
1891 r = ath9k_hw_do_fastcc(ah, chan);
1896 if (ath9k_hw_mci_is_enabled(ah))
1897 ar9003_mci_stop_bt(ah, save_fullsleep);
1899 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1900 if (saveDefAntenna == 0)
1903 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1905 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1906 if (AR_SREV_9100(ah) ||
1907 (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)))
1908 tsf = ath9k_hw_gettsf64(ah);
1910 saveLedState = REG_READ(ah, AR_CFG_LED) &
1911 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1912 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1914 ath9k_hw_mark_phy_inactive(ah);
1916 ah->paprd_table_write_done = false;
1918 /* Only required on the first reset */
1919 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1921 AR9271_RESET_POWER_DOWN_CONTROL,
1922 AR9271_RADIO_RF_RST);
1926 if (!ath9k_hw_chip_reset(ah, chan)) {
1927 ath_err(common, "Chip reset failed\n");
1931 /* Only required on the first reset */
1932 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1933 ah->htc_reset_init = false;
1935 AR9271_RESET_POWER_DOWN_CONTROL,
1936 AR9271_GATE_MAC_CTL);
1942 ath9k_hw_settsf64(ah, tsf);
1944 if (AR_SREV_9280_20_OR_LATER(ah))
1945 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1947 if (!AR_SREV_9300_20_OR_LATER(ah))
1948 ar9002_hw_enable_async_fifo(ah);
1950 r = ath9k_hw_process_ini(ah, chan);
1954 if (ath9k_hw_mci_is_enabled(ah))
1955 ar9003_mci_reset(ah, false, IS_CHAN_2GHZ(chan), save_fullsleep);
1958 * Some AR91xx SoC devices frequently fail to accept TSF writes
1959 * right after the chip reset. When that happens, write a new
1960 * value after the initvals have been applied, with an offset
1961 * based on measured time difference
1963 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1965 ath9k_hw_settsf64(ah, tsf);
1968 ath9k_hw_init_mfp(ah);
1970 ath9k_hw_set_delta_slope(ah, chan);
1971 ath9k_hw_spur_mitigate_freq(ah, chan);
1972 ah->eep_ops->set_board_values(ah, chan);
1974 ath9k_hw_reset_opmode(ah, macStaId1, saveDefAntenna);
1976 r = ath9k_hw_rf_set_freq(ah, chan);
1980 ath9k_hw_set_clockrate(ah);
1982 ath9k_hw_init_queues(ah);
1983 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1984 ath9k_hw_ani_cache_ini_regs(ah);
1985 ath9k_hw_init_qos(ah);
1987 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1988 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
1990 ath9k_hw_init_global_settings(ah);
1992 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1993 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
1994 AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
1995 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
1996 AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
1997 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1998 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
2001 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
2003 ath9k_hw_set_dma(ah);
2005 if (!ath9k_hw_mci_is_enabled(ah))
2006 REG_WRITE(ah, AR_OBS, 8);
2008 if (ah->config.rx_intr_mitigation) {
2009 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
2010 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
2013 if (ah->config.tx_intr_mitigation) {
2014 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
2015 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
2018 ath9k_hw_init_bb(ah, chan);
2021 clear_bit(TXIQCAL_DONE, &caldata->cal_flags);
2022 clear_bit(TXCLCAL_DONE, &caldata->cal_flags);
2024 if (!ath9k_hw_init_cal(ah, chan))
2027 if (ath9k_hw_mci_is_enabled(ah) && ar9003_mci_end_reset(ah, chan, caldata))
2030 ENABLE_REGWRITE_BUFFER(ah);
2032 ath9k_hw_restore_chainmask(ah);
2033 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
2035 REGWRITE_BUFFER_FLUSH(ah);
2037 ath9k_hw_init_desc(ah);
2039 if (ath9k_hw_btcoex_is_enabled(ah))
2040 ath9k_hw_btcoex_enable(ah);
2042 if (ath9k_hw_mci_is_enabled(ah))
2043 ar9003_mci_check_bt(ah);
2045 ath9k_hw_loadnf(ah, chan);
2046 ath9k_hw_start_nfcal(ah, true);
2048 if (AR_SREV_9300_20_OR_LATER(ah)) {
2049 ar9003_hw_bb_watchdog_config(ah);
2050 ar9003_hw_disable_phy_restart(ah);
2053 ath9k_hw_apply_gpio_override(ah);
2055 if (AR_SREV_9565(ah) && common->bt_ant_diversity)
2056 REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON);
2060 EXPORT_SYMBOL(ath9k_hw_reset);
2062 /******************************/
2063 /* Power Management (Chipset) */
2064 /******************************/
2067 * Notify Power Mgt is disabled in self-generated frames.
2068 * If requested, force chip to sleep.
2070 static void ath9k_set_power_sleep(struct ath_hw *ah)
2072 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2074 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
2075 REG_CLR_BIT(ah, AR_TIMER_MODE, 0xff);
2076 REG_CLR_BIT(ah, AR_NDP2_TIMER_MODE, 0xff);
2077 REG_CLR_BIT(ah, AR_SLP32_INC, 0xfffff);
2078 /* xxx Required for WLAN only case ? */
2079 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, 0);
2084 * Clear the RTC force wake bit to allow the
2085 * mac to go to sleep.
2087 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
2089 if (ath9k_hw_mci_is_enabled(ah))
2092 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
2093 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
2095 /* Shutdown chip. Active low */
2096 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah)) {
2097 REG_CLR_BIT(ah, AR_RTC_RESET, AR_RTC_RESET_EN);
2101 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
2102 if (AR_SREV_9300_20_OR_LATER(ah))
2103 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
2107 * Notify Power Management is enabled in self-generating
2108 * frames. If request, set power mode of chip to
2109 * auto/normal. Duration in units of 128us (1/8 TU).
2111 static void ath9k_set_power_network_sleep(struct ath_hw *ah)
2113 struct ath9k_hw_capabilities *pCap = &ah->caps;
2115 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2117 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
2118 /* Set WakeOnInterrupt bit; clear ForceWake bit */
2119 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
2120 AR_RTC_FORCE_WAKE_ON_INT);
2123 /* When chip goes into network sleep, it could be waken
2124 * up by MCI_INT interrupt caused by BT's HW messages
2125 * (LNA_xxx, CONT_xxx) which chould be in a very fast
2126 * rate (~100us). This will cause chip to leave and
2127 * re-enter network sleep mode frequently, which in
2128 * consequence will have WLAN MCI HW to generate lots of
2129 * SYS_WAKING and SYS_SLEEPING messages which will make
2130 * BT CPU to busy to process.
2132 if (ath9k_hw_mci_is_enabled(ah))
2133 REG_CLR_BIT(ah, AR_MCI_INTERRUPT_RX_MSG_EN,
2134 AR_MCI_INTERRUPT_RX_HW_MSG_MASK);
2136 * Clear the RTC force wake bit to allow the
2137 * mac to go to sleep.
2139 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
2141 if (ath9k_hw_mci_is_enabled(ah))
2145 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
2146 if (AR_SREV_9300_20_OR_LATER(ah))
2147 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
2150 static bool ath9k_hw_set_power_awake(struct ath_hw *ah)
2155 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
2156 if (AR_SREV_9300_20_OR_LATER(ah)) {
2157 REG_WRITE(ah, AR_WA, ah->WARegVal);
2161 if ((REG_READ(ah, AR_RTC_STATUS) &
2162 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
2163 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
2166 if (!AR_SREV_9300_20_OR_LATER(ah))
2167 ath9k_hw_init_pll(ah, NULL);
2169 if (AR_SREV_9100(ah))
2170 REG_SET_BIT(ah, AR_RTC_RESET,
2173 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2174 AR_RTC_FORCE_WAKE_EN);
2177 for (i = POWER_UP_TIME / 50; i > 0; i--) {
2178 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
2179 if (val == AR_RTC_STATUS_ON)
2182 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2183 AR_RTC_FORCE_WAKE_EN);
2186 ath_err(ath9k_hw_common(ah),
2187 "Failed to wakeup in %uus\n",
2188 POWER_UP_TIME / 20);
2192 if (ath9k_hw_mci_is_enabled(ah))
2193 ar9003_mci_set_power_awake(ah);
2195 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2200 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
2202 struct ath_common *common = ath9k_hw_common(ah);
2204 static const char *modes[] = {
2211 if (ah->power_mode == mode)
2214 ath_dbg(common, RESET, "%s -> %s\n",
2215 modes[ah->power_mode], modes[mode]);
2218 case ATH9K_PM_AWAKE:
2219 status = ath9k_hw_set_power_awake(ah);
2221 case ATH9K_PM_FULL_SLEEP:
2222 if (ath9k_hw_mci_is_enabled(ah))
2223 ar9003_mci_set_full_sleep(ah);
2225 ath9k_set_power_sleep(ah);
2226 ah->chip_fullsleep = true;
2228 case ATH9K_PM_NETWORK_SLEEP:
2229 ath9k_set_power_network_sleep(ah);
2232 ath_err(common, "Unknown power mode %u\n", mode);
2235 ah->power_mode = mode;
2238 * XXX: If this warning never comes up after a while then
2239 * simply keep the ATH_DBG_WARN_ON_ONCE() but make
2240 * ath9k_hw_setpower() return type void.
2243 if (!(ah->ah_flags & AH_UNPLUGGED))
2244 ATH_DBG_WARN_ON_ONCE(!status);
2248 EXPORT_SYMBOL(ath9k_hw_setpower);
2250 /*******************/
2251 /* Beacon Handling */
2252 /*******************/
2254 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
2258 ENABLE_REGWRITE_BUFFER(ah);
2260 switch (ah->opmode) {
2261 case NL80211_IFTYPE_ADHOC:
2262 REG_SET_BIT(ah, AR_TXCFG,
2263 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
2264 REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon +
2265 TU_TO_USEC(ah->atim_window ? ah->atim_window : 1));
2266 flags |= AR_NDP_TIMER_EN;
2267 case NL80211_IFTYPE_MESH_POINT:
2268 case NL80211_IFTYPE_AP:
2269 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
2270 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
2271 TU_TO_USEC(ah->config.dma_beacon_response_time));
2272 REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
2273 TU_TO_USEC(ah->config.sw_beacon_response_time));
2275 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
2278 ath_dbg(ath9k_hw_common(ah), BEACON,
2279 "%s: unsupported opmode: %d\n", __func__, ah->opmode);
2284 REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
2285 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
2286 REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
2287 REG_WRITE(ah, AR_NDP_PERIOD, beacon_period);
2289 REGWRITE_BUFFER_FLUSH(ah);
2291 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
2293 EXPORT_SYMBOL(ath9k_hw_beaconinit);
2295 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
2296 const struct ath9k_beacon_state *bs)
2298 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
2299 struct ath9k_hw_capabilities *pCap = &ah->caps;
2300 struct ath_common *common = ath9k_hw_common(ah);
2302 ENABLE_REGWRITE_BUFFER(ah);
2304 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
2306 REG_WRITE(ah, AR_BEACON_PERIOD,
2307 TU_TO_USEC(bs->bs_intval));
2308 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
2309 TU_TO_USEC(bs->bs_intval));
2311 REGWRITE_BUFFER_FLUSH(ah);
2313 REG_RMW_FIELD(ah, AR_RSSI_THR,
2314 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
2316 beaconintval = bs->bs_intval;
2318 if (bs->bs_sleepduration > beaconintval)
2319 beaconintval = bs->bs_sleepduration;
2321 dtimperiod = bs->bs_dtimperiod;
2322 if (bs->bs_sleepduration > dtimperiod)
2323 dtimperiod = bs->bs_sleepduration;
2325 if (beaconintval == dtimperiod)
2326 nextTbtt = bs->bs_nextdtim;
2328 nextTbtt = bs->bs_nexttbtt;
2330 ath_dbg(common, BEACON, "next DTIM %d\n", bs->bs_nextdtim);
2331 ath_dbg(common, BEACON, "next beacon %d\n", nextTbtt);
2332 ath_dbg(common, BEACON, "beacon period %d\n", beaconintval);
2333 ath_dbg(common, BEACON, "DTIM period %d\n", dtimperiod);
2335 ENABLE_REGWRITE_BUFFER(ah);
2337 REG_WRITE(ah, AR_NEXT_DTIM,
2338 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
2339 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
2341 REG_WRITE(ah, AR_SLEEP1,
2342 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
2343 | AR_SLEEP1_ASSUME_DTIM);
2345 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
2346 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
2348 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
2350 REG_WRITE(ah, AR_SLEEP2,
2351 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
2353 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
2354 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
2356 REGWRITE_BUFFER_FLUSH(ah);
2358 REG_SET_BIT(ah, AR_TIMER_MODE,
2359 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
2362 /* TSF Out of Range Threshold */
2363 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
2365 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
2367 /*******************/
2368 /* HW Capabilities */
2369 /*******************/
2371 static u8 fixup_chainmask(u8 chip_chainmask, u8 eeprom_chainmask)
2373 eeprom_chainmask &= chip_chainmask;
2374 if (eeprom_chainmask)
2375 return eeprom_chainmask;
2377 return chip_chainmask;
2381 * ath9k_hw_dfs_tested - checks if DFS has been tested with used chipset
2382 * @ah: the atheros hardware data structure
2384 * We enable DFS support upstream on chipsets which have passed a series
2385 * of tests. The testing requirements are going to be documented. Desired
2386 * test requirements are documented at:
2388 * http://wireless.kernel.org/en/users/Drivers/ath9k/dfs
2390 * Once a new chipset gets properly tested an individual commit can be used
2391 * to document the testing for DFS for that chipset.
2393 static bool ath9k_hw_dfs_tested(struct ath_hw *ah)
2396 switch (ah->hw_version.macVersion) {
2397 /* for temporary testing DFS with 9280 */
2398 case AR_SREV_VERSION_9280:
2399 /* AR9580 will likely be our first target to get testing on */
2400 case AR_SREV_VERSION_9580:
2407 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
2409 struct ath9k_hw_capabilities *pCap = &ah->caps;
2410 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2411 struct ath_common *common = ath9k_hw_common(ah);
2412 unsigned int chip_chainmask;
2415 u8 ant_div_ctl1, tx_chainmask, rx_chainmask;
2417 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
2418 regulatory->current_rd = eeval;
2420 if (ah->opmode != NL80211_IFTYPE_AP &&
2421 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
2422 if (regulatory->current_rd == 0x64 ||
2423 regulatory->current_rd == 0x65)
2424 regulatory->current_rd += 5;
2425 else if (regulatory->current_rd == 0x41)
2426 regulatory->current_rd = 0x43;
2427 ath_dbg(common, REGULATORY, "regdomain mapped to 0x%x\n",
2428 regulatory->current_rd);
2431 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
2432 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
2434 "no band has been marked as supported in EEPROM\n");
2438 if (eeval & AR5416_OPFLAGS_11A)
2439 pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
2441 if (eeval & AR5416_OPFLAGS_11G)
2442 pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
2444 if (AR_SREV_9485(ah) ||
2449 else if (AR_SREV_9462(ah))
2451 else if (!AR_SREV_9280_20_OR_LATER(ah))
2453 else if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9340(ah))
2458 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
2460 * For AR9271 we will temporarilly uses the rx chainmax as read from
2463 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
2464 !(eeval & AR5416_OPFLAGS_11A) &&
2465 !(AR_SREV_9271(ah)))
2466 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
2467 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
2468 else if (AR_SREV_9100(ah))
2469 pCap->rx_chainmask = 0x7;
2471 /* Use rx_chainmask from EEPROM. */
2472 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
2474 pCap->tx_chainmask = fixup_chainmask(chip_chainmask, pCap->tx_chainmask);
2475 pCap->rx_chainmask = fixup_chainmask(chip_chainmask, pCap->rx_chainmask);
2476 ah->txchainmask = pCap->tx_chainmask;
2477 ah->rxchainmask = pCap->rx_chainmask;
2479 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
2481 /* enable key search for every frame in an aggregate */
2482 if (AR_SREV_9300_20_OR_LATER(ah))
2483 ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
2485 common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
2487 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
2488 pCap->hw_caps |= ATH9K_HW_CAP_HT;
2490 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
2492 if (AR_SREV_9271(ah))
2493 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2494 else if (AR_DEVID_7010(ah))
2495 pCap->num_gpio_pins = AR7010_NUM_GPIO;
2496 else if (AR_SREV_9300_20_OR_LATER(ah))
2497 pCap->num_gpio_pins = AR9300_NUM_GPIO;
2498 else if (AR_SREV_9287_11_OR_LATER(ah))
2499 pCap->num_gpio_pins = AR9287_NUM_GPIO;
2500 else if (AR_SREV_9285_12_OR_LATER(ah))
2501 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2502 else if (AR_SREV_9280_20_OR_LATER(ah))
2503 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2505 pCap->num_gpio_pins = AR_NUM_GPIO;
2507 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah))
2508 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2510 pCap->rts_aggr_limit = (8 * 1024);
2512 #ifdef CONFIG_ATH9K_RFKILL
2513 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2514 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2516 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2517 ah->rfkill_polarity =
2518 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2520 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2523 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
2524 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2526 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2528 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2529 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2531 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2533 if (AR_SREV_9300_20_OR_LATER(ah)) {
2534 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
2535 if (!AR_SREV_9330(ah) && !AR_SREV_9485(ah) && !AR_SREV_9565(ah))
2536 pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
2538 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2539 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2540 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2541 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2542 pCap->txs_len = sizeof(struct ar9003_txs);
2544 pCap->tx_desc_len = sizeof(struct ath_desc);
2545 if (AR_SREV_9280_20(ah))
2546 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
2549 if (AR_SREV_9300_20_OR_LATER(ah))
2550 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2552 if (AR_SREV_9300_20_OR_LATER(ah))
2553 ah->ent_mode = REG_READ(ah, AR_ENT_OTP);
2555 if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah))
2556 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
2558 if (AR_SREV_9285(ah)) {
2559 if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) {
2561 ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2562 if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1)) {
2563 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2564 ath_info(common, "Enable LNA combining\n");
2569 if (AR_SREV_9300_20_OR_LATER(ah)) {
2570 if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
2571 pCap->hw_caps |= ATH9K_HW_CAP_APM;
2574 if (AR_SREV_9330(ah) || AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
2575 ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2576 if ((ant_div_ctl1 >> 0x6) == 0x3) {
2577 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2578 ath_info(common, "Enable LNA combining\n");
2582 if (ath9k_hw_dfs_tested(ah))
2583 pCap->hw_caps |= ATH9K_HW_CAP_DFS;
2585 tx_chainmask = pCap->tx_chainmask;
2586 rx_chainmask = pCap->rx_chainmask;
2587 while (tx_chainmask || rx_chainmask) {
2588 if (tx_chainmask & BIT(0))
2589 pCap->max_txchains++;
2590 if (rx_chainmask & BIT(0))
2591 pCap->max_rxchains++;
2597 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
2598 if (!(ah->ent_mode & AR_ENT_OTP_49GHZ_DISABLE))
2599 pCap->hw_caps |= ATH9K_HW_CAP_MCI;
2601 if (AR_SREV_9462_20_OR_LATER(ah))
2602 pCap->hw_caps |= ATH9K_HW_CAP_RTT;
2605 if (AR_SREV_9462(ah))
2606 pCap->hw_caps |= ATH9K_HW_WOW_DEVICE_CAPABLE;
2608 if (AR_SREV_9300_20_OR_LATER(ah) &&
2609 ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
2610 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
2613 * Fast channel change across bands is available
2614 * only for AR9462 and AR9565.
2616 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
2617 pCap->hw_caps |= ATH9K_HW_CAP_FCC_BAND_SWITCH;
2622 /****************************/
2623 /* GPIO / RFKILL / Antennae */
2624 /****************************/
2626 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2630 u32 gpio_shift, tmp;
2633 addr = AR_GPIO_OUTPUT_MUX3;
2635 addr = AR_GPIO_OUTPUT_MUX2;
2637 addr = AR_GPIO_OUTPUT_MUX1;
2639 gpio_shift = (gpio % 6) * 5;
2641 if (AR_SREV_9280_20_OR_LATER(ah)
2642 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2643 REG_RMW(ah, addr, (type << gpio_shift),
2644 (0x1f << gpio_shift));
2646 tmp = REG_READ(ah, addr);
2647 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2648 tmp &= ~(0x1f << gpio_shift);
2649 tmp |= (type << gpio_shift);
2650 REG_WRITE(ah, addr, tmp);
2654 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2658 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2660 if (AR_DEVID_7010(ah)) {
2662 REG_RMW(ah, AR7010_GPIO_OE,
2663 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2664 (AR7010_GPIO_OE_MASK << gpio_shift));
2668 gpio_shift = gpio << 1;
2671 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2672 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2674 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2676 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2678 #define MS_REG_READ(x, y) \
2679 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2681 if (gpio >= ah->caps.num_gpio_pins)
2684 if (AR_DEVID_7010(ah)) {
2686 val = REG_READ(ah, AR7010_GPIO_IN);
2687 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2688 } else if (AR_SREV_9300_20_OR_LATER(ah))
2689 return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
2690 AR_GPIO_BIT(gpio)) != 0;
2691 else if (AR_SREV_9271(ah))
2692 return MS_REG_READ(AR9271, gpio) != 0;
2693 else if (AR_SREV_9287_11_OR_LATER(ah))
2694 return MS_REG_READ(AR9287, gpio) != 0;
2695 else if (AR_SREV_9285_12_OR_LATER(ah))
2696 return MS_REG_READ(AR9285, gpio) != 0;
2697 else if (AR_SREV_9280_20_OR_LATER(ah))
2698 return MS_REG_READ(AR928X, gpio) != 0;
2700 return MS_REG_READ(AR, gpio) != 0;
2702 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2704 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2709 if (AR_DEVID_7010(ah)) {
2711 REG_RMW(ah, AR7010_GPIO_OE,
2712 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2713 (AR7010_GPIO_OE_MASK << gpio_shift));
2717 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2718 gpio_shift = 2 * gpio;
2721 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2722 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2724 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2726 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2728 if (AR_DEVID_7010(ah)) {
2730 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2735 if (AR_SREV_9271(ah))
2738 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2741 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2743 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2745 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2747 EXPORT_SYMBOL(ath9k_hw_setantenna);
2749 /*********************/
2750 /* General Operation */
2751 /*********************/
2753 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2755 u32 bits = REG_READ(ah, AR_RX_FILTER);
2756 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2758 if (phybits & AR_PHY_ERR_RADAR)
2759 bits |= ATH9K_RX_FILTER_PHYRADAR;
2760 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2761 bits |= ATH9K_RX_FILTER_PHYERR;
2765 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2767 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2771 ENABLE_REGWRITE_BUFFER(ah);
2773 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
2774 bits |= ATH9K_RX_FILTER_CONTROL_WRAPPER;
2776 REG_WRITE(ah, AR_RX_FILTER, bits);
2779 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2780 phybits |= AR_PHY_ERR_RADAR;
2781 if (bits & ATH9K_RX_FILTER_PHYERR)
2782 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2783 REG_WRITE(ah, AR_PHY_ERR, phybits);
2786 REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2788 REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2790 REGWRITE_BUFFER_FLUSH(ah);
2792 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2794 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2796 if (ath9k_hw_mci_is_enabled(ah))
2797 ar9003_mci_bt_gain_ctrl(ah);
2799 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2802 ath9k_hw_init_pll(ah, NULL);
2803 ah->htc_reset_init = true;
2806 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2808 bool ath9k_hw_disable(struct ath_hw *ah)
2810 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2813 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2816 ath9k_hw_init_pll(ah, NULL);
2819 EXPORT_SYMBOL(ath9k_hw_disable);
2821 static int get_antenna_gain(struct ath_hw *ah, struct ath9k_channel *chan)
2823 enum eeprom_param gain_param;
2825 if (IS_CHAN_2GHZ(chan))
2826 gain_param = EEP_ANTENNA_GAIN_2G;
2828 gain_param = EEP_ANTENNA_GAIN_5G;
2830 return ah->eep_ops->get_eeprom(ah, gain_param);
2833 void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan,
2836 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2837 struct ieee80211_channel *channel;
2838 int chan_pwr, new_pwr, max_gain;
2839 int ant_gain, ant_reduction = 0;
2844 channel = chan->chan;
2845 chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER);
2846 new_pwr = min_t(int, chan_pwr, reg->power_limit);
2847 max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2;
2849 ant_gain = get_antenna_gain(ah, chan);
2850 if (ant_gain > max_gain)
2851 ant_reduction = ant_gain - max_gain;
2853 ah->eep_ops->set_txpower(ah, chan,
2854 ath9k_regd_get_ctl(reg, chan),
2855 ant_reduction, new_pwr, test);
2858 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
2860 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2861 struct ath9k_channel *chan = ah->curchan;
2862 struct ieee80211_channel *channel = chan->chan;
2864 reg->power_limit = min_t(u32, limit, MAX_RATE_POWER);
2866 channel->max_power = MAX_RATE_POWER / 2;
2868 ath9k_hw_apply_txpower(ah, chan, test);
2871 channel->max_power = DIV_ROUND_UP(reg->max_power_level, 2);
2873 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2875 void ath9k_hw_setopmode(struct ath_hw *ah)
2877 ath9k_hw_set_operating_mode(ah, ah->opmode);
2879 EXPORT_SYMBOL(ath9k_hw_setopmode);
2881 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2883 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2884 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2886 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2888 void ath9k_hw_write_associd(struct ath_hw *ah)
2890 struct ath_common *common = ath9k_hw_common(ah);
2892 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2893 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2894 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2896 EXPORT_SYMBOL(ath9k_hw_write_associd);
2898 #define ATH9K_MAX_TSF_READ 10
2900 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2902 u32 tsf_lower, tsf_upper1, tsf_upper2;
2905 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2906 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2907 tsf_lower = REG_READ(ah, AR_TSF_L32);
2908 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2909 if (tsf_upper2 == tsf_upper1)
2911 tsf_upper1 = tsf_upper2;
2914 WARN_ON( i == ATH9K_MAX_TSF_READ );
2916 return (((u64)tsf_upper1 << 32) | tsf_lower);
2918 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2920 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2922 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2923 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2925 EXPORT_SYMBOL(ath9k_hw_settsf64);
2927 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2929 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2930 AH_TSF_WRITE_TIMEOUT))
2931 ath_dbg(ath9k_hw_common(ah), RESET,
2932 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2934 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2936 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2938 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, bool set)
2941 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2943 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2945 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2947 void ath9k_hw_set11nmac2040(struct ath_hw *ah, struct ath9k_channel *chan)
2951 if (IS_CHAN_HT40(chan) && !ah->config.cwm_ignore_extcca)
2952 macmode = AR_2040_JOINED_RX_CLEAR;
2956 REG_WRITE(ah, AR_2040_MODE, macmode);
2959 /* HW Generic timers configuration */
2961 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2963 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2964 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2965 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2966 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
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_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2972 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2973 AR_NDP2_TIMER_MODE, 0x0002},
2974 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2975 AR_NDP2_TIMER_MODE, 0x0004},
2976 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2977 AR_NDP2_TIMER_MODE, 0x0008},
2978 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2979 AR_NDP2_TIMER_MODE, 0x0010},
2980 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2981 AR_NDP2_TIMER_MODE, 0x0020},
2982 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2983 AR_NDP2_TIMER_MODE, 0x0040},
2984 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2985 AR_NDP2_TIMER_MODE, 0x0080}
2988 /* HW generic timer primitives */
2990 /* compute and clear index of rightmost 1 */
2991 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
3001 return timer_table->gen_timer_index[b];
3004 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
3006 return REG_READ(ah, AR_TSF_L32);
3008 EXPORT_SYMBOL(ath9k_hw_gettsf32);
3010 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
3011 void (*trigger)(void *),
3012 void (*overflow)(void *),
3016 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3017 struct ath_gen_timer *timer;
3019 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
3023 /* allocate a hardware generic timer slot */
3024 timer_table->timers[timer_index] = timer;
3025 timer->index = timer_index;
3026 timer->trigger = trigger;
3027 timer->overflow = overflow;
3032 EXPORT_SYMBOL(ath_gen_timer_alloc);
3034 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
3035 struct ath_gen_timer *timer,
3039 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3040 u32 tsf, timer_next;
3042 BUG_ON(!timer_period);
3044 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
3046 tsf = ath9k_hw_gettsf32(ah);
3048 timer_next = tsf + trig_timeout;
3050 ath_dbg(ath9k_hw_common(ah), BTCOEX,
3051 "current tsf %x period %x timer_next %x\n",
3052 tsf, timer_period, timer_next);
3055 * Program generic timer registers
3057 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
3059 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
3061 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
3062 gen_tmr_configuration[timer->index].mode_mask);
3064 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
3066 * Starting from AR9462, each generic timer can select which tsf
3067 * to use. But we still follow the old rule, 0 - 7 use tsf and
3070 if ((timer->index < AR_GEN_TIMER_BANK_1_LEN))
3071 REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
3072 (1 << timer->index));
3074 REG_SET_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
3075 (1 << timer->index));
3078 /* Enable both trigger and thresh interrupt masks */
3079 REG_SET_BIT(ah, AR_IMR_S5,
3080 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
3081 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
3083 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
3085 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
3087 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3089 if ((timer->index < AR_FIRST_NDP_TIMER) ||
3090 (timer->index >= ATH_MAX_GEN_TIMER)) {
3094 /* Clear generic timer enable bits. */
3095 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
3096 gen_tmr_configuration[timer->index].mode_mask);
3098 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
3100 * Need to switch back to TSF if it was using TSF2.
3102 if ((timer->index >= AR_GEN_TIMER_BANK_1_LEN)) {
3103 REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
3104 (1 << timer->index));
3108 /* Disable both trigger and thresh interrupt masks */
3109 REG_CLR_BIT(ah, AR_IMR_S5,
3110 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
3111 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
3113 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
3115 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
3117 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
3119 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3121 /* free the hardware generic timer slot */
3122 timer_table->timers[timer->index] = NULL;
3125 EXPORT_SYMBOL(ath_gen_timer_free);
3128 * Generic Timer Interrupts handling
3130 void ath_gen_timer_isr(struct ath_hw *ah)
3132 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3133 struct ath_gen_timer *timer;
3134 struct ath_common *common = ath9k_hw_common(ah);
3135 u32 trigger_mask, thresh_mask, index;
3137 /* get hardware generic timer interrupt status */
3138 trigger_mask = ah->intr_gen_timer_trigger;
3139 thresh_mask = ah->intr_gen_timer_thresh;
3140 trigger_mask &= timer_table->timer_mask.val;
3141 thresh_mask &= timer_table->timer_mask.val;
3143 trigger_mask &= ~thresh_mask;
3145 while (thresh_mask) {
3146 index = rightmost_index(timer_table, &thresh_mask);
3147 timer = timer_table->timers[index];
3149 ath_dbg(common, BTCOEX, "TSF overflow for Gen timer %d\n",
3151 timer->overflow(timer->arg);
3154 while (trigger_mask) {
3155 index = rightmost_index(timer_table, &trigger_mask);
3156 timer = timer_table->timers[index];
3158 ath_dbg(common, BTCOEX,
3159 "Gen timer[%d] trigger\n", index);
3160 timer->trigger(timer->arg);
3163 EXPORT_SYMBOL(ath_gen_timer_isr);
3172 } ath_mac_bb_names[] = {
3173 /* Devices with external radios */
3174 { AR_SREV_VERSION_5416_PCI, "5416" },
3175 { AR_SREV_VERSION_5416_PCIE, "5418" },
3176 { AR_SREV_VERSION_9100, "9100" },
3177 { AR_SREV_VERSION_9160, "9160" },
3178 /* Single-chip solutions */
3179 { AR_SREV_VERSION_9280, "9280" },
3180 { AR_SREV_VERSION_9285, "9285" },
3181 { AR_SREV_VERSION_9287, "9287" },
3182 { AR_SREV_VERSION_9271, "9271" },
3183 { AR_SREV_VERSION_9300, "9300" },
3184 { AR_SREV_VERSION_9330, "9330" },
3185 { AR_SREV_VERSION_9340, "9340" },
3186 { AR_SREV_VERSION_9485, "9485" },
3187 { AR_SREV_VERSION_9462, "9462" },
3188 { AR_SREV_VERSION_9550, "9550" },
3189 { AR_SREV_VERSION_9565, "9565" },
3192 /* For devices with external radios */
3196 } ath_rf_names[] = {
3198 { AR_RAD5133_SREV_MAJOR, "5133" },
3199 { AR_RAD5122_SREV_MAJOR, "5122" },
3200 { AR_RAD2133_SREV_MAJOR, "2133" },
3201 { AR_RAD2122_SREV_MAJOR, "2122" }
3205 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
3207 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
3211 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
3212 if (ath_mac_bb_names[i].version == mac_bb_version) {
3213 return ath_mac_bb_names[i].name;
3221 * Return the RF name. "????" is returned if the RF is unknown.
3222 * Used for devices with external radios.
3224 static const char *ath9k_hw_rf_name(u16 rf_version)
3228 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
3229 if (ath_rf_names[i].version == rf_version) {
3230 return ath_rf_names[i].name;
3237 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
3241 /* chipsets >= AR9280 are single-chip */
3242 if (AR_SREV_9280_20_OR_LATER(ah)) {
3243 used = scnprintf(hw_name, len,
3244 "Atheros AR%s Rev:%x",
3245 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3246 ah->hw_version.macRev);
3249 used = scnprintf(hw_name, len,
3250 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
3251 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3252 ah->hw_version.macRev,
3253 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev
3254 & AR_RADIO_SREV_MAJOR)),
3255 ah->hw_version.phyRev);
3258 hw_name[used] = '\0';
3260 EXPORT_SYMBOL(ath9k_hw_name);