2 * Copyright (c) 2008-2010 Atheros Communications Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #include <linux/slab.h>
19 #include <asm/unaligned.h>
24 #include "ar9003_mac.h"
26 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
28 MODULE_AUTHOR("Atheros Communications");
29 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
30 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
31 MODULE_LICENSE("Dual BSD/GPL");
33 static int __init ath9k_init(void)
37 module_init(ath9k_init);
39 static void __exit ath9k_exit(void)
43 module_exit(ath9k_exit);
45 /* Private hardware callbacks */
47 static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
49 ath9k_hw_private_ops(ah)->init_cal_settings(ah);
52 static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
54 ath9k_hw_private_ops(ah)->init_mode_regs(ah);
57 static u32 ath9k_hw_compute_pll_control(struct ath_hw *ah,
58 struct ath9k_channel *chan)
60 return ath9k_hw_private_ops(ah)->compute_pll_control(ah, chan);
63 static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
65 if (!ath9k_hw_private_ops(ah)->init_mode_gain_regs)
68 ath9k_hw_private_ops(ah)->init_mode_gain_regs(ah);
71 static void ath9k_hw_ani_cache_ini_regs(struct ath_hw *ah)
73 /* You will not have this callback if using the old ANI */
74 if (!ath9k_hw_private_ops(ah)->ani_cache_ini_regs)
77 ath9k_hw_private_ops(ah)->ani_cache_ini_regs(ah);
80 /********************/
81 /* Helper Functions */
82 /********************/
84 static void ath9k_hw_set_clockrate(struct ath_hw *ah)
86 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
87 struct ath_common *common = ath9k_hw_common(ah);
88 unsigned int clockrate;
90 if (!ah->curchan) /* should really check for CCK instead */
91 clockrate = ATH9K_CLOCK_RATE_CCK;
92 else if (conf->channel->band == IEEE80211_BAND_2GHZ)
93 clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
94 else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
95 clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
97 clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
99 if (conf_is_ht40(conf))
102 common->clockrate = clockrate;
105 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
107 struct ath_common *common = ath9k_hw_common(ah);
109 return usecs * common->clockrate;
112 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
116 BUG_ON(timeout < AH_TIME_QUANTUM);
118 for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
119 if ((REG_READ(ah, reg) & mask) == val)
122 udelay(AH_TIME_QUANTUM);
125 ath_dbg(ath9k_hw_common(ah), ATH_DBG_ANY,
126 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
127 timeout, reg, REG_READ(ah, reg), mask, val);
131 EXPORT_SYMBOL(ath9k_hw_wait);
133 void ath9k_hw_write_array(struct ath_hw *ah, struct ar5416IniArray *array,
134 int column, unsigned int *writecnt)
138 ENABLE_REGWRITE_BUFFER(ah);
139 for (r = 0; r < array->ia_rows; r++) {
140 REG_WRITE(ah, INI_RA(array, r, 0),
141 INI_RA(array, r, column));
144 REGWRITE_BUFFER_FLUSH(ah);
147 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
152 for (i = 0, retval = 0; i < n; i++) {
153 retval = (retval << 1) | (val & 1);
159 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
161 u32 frameLen, u16 rateix,
164 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
170 case WLAN_RC_PHY_CCK:
171 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
174 numBits = frameLen << 3;
175 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
177 case WLAN_RC_PHY_OFDM:
178 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
179 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
180 numBits = OFDM_PLCP_BITS + (frameLen << 3);
181 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
182 txTime = OFDM_SIFS_TIME_QUARTER
183 + OFDM_PREAMBLE_TIME_QUARTER
184 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
185 } else if (ah->curchan &&
186 IS_CHAN_HALF_RATE(ah->curchan)) {
187 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
188 numBits = OFDM_PLCP_BITS + (frameLen << 3);
189 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
190 txTime = OFDM_SIFS_TIME_HALF +
191 OFDM_PREAMBLE_TIME_HALF
192 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
194 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
195 numBits = OFDM_PLCP_BITS + (frameLen << 3);
196 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
197 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
198 + (numSymbols * OFDM_SYMBOL_TIME);
202 ath_err(ath9k_hw_common(ah),
203 "Unknown phy %u (rate ix %u)\n", phy, rateix);
210 EXPORT_SYMBOL(ath9k_hw_computetxtime);
212 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
213 struct ath9k_channel *chan,
214 struct chan_centers *centers)
218 if (!IS_CHAN_HT40(chan)) {
219 centers->ctl_center = centers->ext_center =
220 centers->synth_center = chan->channel;
224 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
225 (chan->chanmode == CHANNEL_G_HT40PLUS)) {
226 centers->synth_center =
227 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
230 centers->synth_center =
231 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
235 centers->ctl_center =
236 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
237 /* 25 MHz spacing is supported by hw but not on upper layers */
238 centers->ext_center =
239 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
246 static void ath9k_hw_read_revisions(struct ath_hw *ah)
250 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
253 val = REG_READ(ah, AR_SREV);
254 ah->hw_version.macVersion =
255 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
256 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
257 ah->is_pciexpress = (val & AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
259 if (!AR_SREV_9100(ah))
260 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
262 ah->hw_version.macRev = val & AR_SREV_REVISION;
264 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
265 ah->is_pciexpress = true;
269 /************************************/
270 /* HW Attach, Detach, Init Routines */
271 /************************************/
273 static void ath9k_hw_disablepcie(struct ath_hw *ah)
275 if (!AR_SREV_5416(ah))
278 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
279 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
280 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
281 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
282 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
283 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
284 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
285 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
286 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
288 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
291 /* This should work for all families including legacy */
292 static bool ath9k_hw_chip_test(struct ath_hw *ah)
294 struct ath_common *common = ath9k_hw_common(ah);
295 u32 regAddr[2] = { AR_STA_ID0 };
297 static const u32 patternData[4] = {
298 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999
302 if (!AR_SREV_9300_20_OR_LATER(ah)) {
304 regAddr[1] = AR_PHY_BASE + (8 << 2);
308 for (i = 0; i < loop_max; i++) {
309 u32 addr = regAddr[i];
312 regHold[i] = REG_READ(ah, addr);
313 for (j = 0; j < 0x100; j++) {
314 wrData = (j << 16) | j;
315 REG_WRITE(ah, addr, wrData);
316 rdData = REG_READ(ah, addr);
317 if (rdData != wrData) {
319 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
320 addr, wrData, rdData);
324 for (j = 0; j < 4; j++) {
325 wrData = patternData[j];
326 REG_WRITE(ah, addr, wrData);
327 rdData = REG_READ(ah, addr);
328 if (wrData != rdData) {
330 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
331 addr, wrData, rdData);
335 REG_WRITE(ah, regAddr[i], regHold[i]);
342 static void ath9k_hw_init_config(struct ath_hw *ah)
346 ah->config.dma_beacon_response_time = 2;
347 ah->config.sw_beacon_response_time = 10;
348 ah->config.additional_swba_backoff = 0;
349 ah->config.ack_6mb = 0x0;
350 ah->config.cwm_ignore_extcca = 0;
351 ah->config.pcie_powersave_enable = 0;
352 ah->config.pcie_clock_req = 0;
353 ah->config.pcie_waen = 0;
354 ah->config.analog_shiftreg = 1;
355 ah->config.enable_ani = true;
357 for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
358 ah->config.spurchans[i][0] = AR_NO_SPUR;
359 ah->config.spurchans[i][1] = AR_NO_SPUR;
362 /* PAPRD needs some more work to be enabled */
363 ah->config.paprd_disable = 1;
365 ah->config.rx_intr_mitigation = true;
366 ah->config.pcieSerDesWrite = true;
369 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
370 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
371 * This means we use it for all AR5416 devices, and the few
372 * minor PCI AR9280 devices out there.
374 * Serialization is required because these devices do not handle
375 * well the case of two concurrent reads/writes due to the latency
376 * involved. During one read/write another read/write can be issued
377 * on another CPU while the previous read/write may still be working
378 * on our hardware, if we hit this case the hardware poops in a loop.
379 * We prevent this by serializing reads and writes.
381 * This issue is not present on PCI-Express devices or pre-AR5416
382 * devices (legacy, 802.11abg).
384 if (num_possible_cpus() > 1)
385 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
388 static void ath9k_hw_init_defaults(struct ath_hw *ah)
390 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
392 regulatory->country_code = CTRY_DEFAULT;
393 regulatory->power_limit = MAX_RATE_POWER;
394 regulatory->tp_scale = ATH9K_TP_SCALE_MAX;
396 ah->hw_version.magic = AR5416_MAGIC;
397 ah->hw_version.subvendorid = 0;
400 ah->sta_id1_defaults =
401 AR_STA_ID1_CRPT_MIC_ENABLE |
402 AR_STA_ID1_MCAST_KSRCH;
403 if (AR_SREV_9100(ah))
404 ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX;
405 ah->enable_32kHz_clock = DONT_USE_32KHZ;
407 ah->globaltxtimeout = (u32) -1;
408 ah->power_mode = ATH9K_PM_UNDEFINED;
411 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
413 struct ath_common *common = ath9k_hw_common(ah);
417 static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
420 for (i = 0; i < 3; i++) {
421 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
423 common->macaddr[2 * i] = eeval >> 8;
424 common->macaddr[2 * i + 1] = eeval & 0xff;
426 if (sum == 0 || sum == 0xffff * 3)
427 return -EADDRNOTAVAIL;
432 static int ath9k_hw_post_init(struct ath_hw *ah)
434 struct ath_common *common = ath9k_hw_common(ah);
437 if (common->bus_ops->ath_bus_type != ATH_USB) {
438 if (!ath9k_hw_chip_test(ah))
442 if (!AR_SREV_9300_20_OR_LATER(ah)) {
443 ecode = ar9002_hw_rf_claim(ah);
448 ecode = ath9k_hw_eeprom_init(ah);
452 ath_dbg(ath9k_hw_common(ah), ATH_DBG_CONFIG,
453 "Eeprom VER: %d, REV: %d\n",
454 ah->eep_ops->get_eeprom_ver(ah),
455 ah->eep_ops->get_eeprom_rev(ah));
457 ecode = ath9k_hw_rf_alloc_ext_banks(ah);
459 ath_err(ath9k_hw_common(ah),
460 "Failed allocating banks for external radio\n");
461 ath9k_hw_rf_free_ext_banks(ah);
465 if (!AR_SREV_9100(ah) && !AR_SREV_9340(ah)) {
466 ath9k_hw_ani_setup(ah);
467 ath9k_hw_ani_init(ah);
473 static void ath9k_hw_attach_ops(struct ath_hw *ah)
475 if (AR_SREV_9300_20_OR_LATER(ah))
476 ar9003_hw_attach_ops(ah);
478 ar9002_hw_attach_ops(ah);
481 /* Called for all hardware families */
482 static int __ath9k_hw_init(struct ath_hw *ah)
484 struct ath_common *common = ath9k_hw_common(ah);
487 if (ah->hw_version.devid == AR5416_AR9100_DEVID)
488 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
490 ath9k_hw_read_revisions(ah);
493 * Read back AR_WA into a permanent copy and set bits 14 and 17.
494 * We need to do this to avoid RMW of this register. We cannot
495 * read the reg when chip is asleep.
497 ah->WARegVal = REG_READ(ah, AR_WA);
498 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
499 AR_WA_ASPM_TIMER_BASED_DISABLE);
501 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
502 ath_err(common, "Couldn't reset chip\n");
506 ath9k_hw_init_defaults(ah);
507 ath9k_hw_init_config(ah);
509 ath9k_hw_attach_ops(ah);
511 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
512 ath_err(common, "Couldn't wakeup chip\n");
516 if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
517 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
518 ((AR_SREV_9160(ah) || AR_SREV_9280(ah)) &&
519 !ah->is_pciexpress)) {
520 ah->config.serialize_regmode =
523 ah->config.serialize_regmode =
528 ath_dbg(common, ATH_DBG_RESET, "serialize_regmode is %d\n",
529 ah->config.serialize_regmode);
531 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
532 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
534 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
536 switch (ah->hw_version.macVersion) {
537 case AR_SREV_VERSION_5416_PCI:
538 case AR_SREV_VERSION_5416_PCIE:
539 case AR_SREV_VERSION_9160:
540 case AR_SREV_VERSION_9100:
541 case AR_SREV_VERSION_9280:
542 case AR_SREV_VERSION_9285:
543 case AR_SREV_VERSION_9287:
544 case AR_SREV_VERSION_9271:
545 case AR_SREV_VERSION_9300:
546 case AR_SREV_VERSION_9485:
550 "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
551 ah->hw_version.macVersion, ah->hw_version.macRev);
555 if (AR_SREV_9271(ah) || AR_SREV_9100(ah) || AR_SREV_9340(ah))
556 ah->is_pciexpress = false;
558 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
559 ath9k_hw_init_cal_settings(ah);
561 ah->ani_function = ATH9K_ANI_ALL;
562 if (AR_SREV_9280_20_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah))
563 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
564 if (!AR_SREV_9300_20_OR_LATER(ah))
565 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
567 ath9k_hw_init_mode_regs(ah);
570 if (ah->is_pciexpress)
571 ath9k_hw_configpcipowersave(ah, 0, 0);
573 ath9k_hw_disablepcie(ah);
575 if (!AR_SREV_9300_20_OR_LATER(ah))
576 ar9002_hw_cck_chan14_spread(ah);
578 r = ath9k_hw_post_init(ah);
582 ath9k_hw_init_mode_gain_regs(ah);
583 r = ath9k_hw_fill_cap_info(ah);
587 r = ath9k_hw_init_macaddr(ah);
589 ath_err(common, "Failed to initialize MAC address\n");
593 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
594 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
596 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
598 ah->bb_watchdog_timeout_ms = 25;
600 common->state = ATH_HW_INITIALIZED;
605 int ath9k_hw_init(struct ath_hw *ah)
608 struct ath_common *common = ath9k_hw_common(ah);
610 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
611 switch (ah->hw_version.devid) {
612 case AR5416_DEVID_PCI:
613 case AR5416_DEVID_PCIE:
614 case AR5416_AR9100_DEVID:
615 case AR9160_DEVID_PCI:
616 case AR9280_DEVID_PCI:
617 case AR9280_DEVID_PCIE:
618 case AR9285_DEVID_PCIE:
619 case AR9287_DEVID_PCI:
620 case AR9287_DEVID_PCIE:
621 case AR2427_DEVID_PCIE:
622 case AR9300_DEVID_PCIE:
623 case AR9300_DEVID_AR9485_PCIE:
626 if (common->bus_ops->ath_bus_type == ATH_USB)
628 ath_err(common, "Hardware device ID 0x%04x not supported\n",
629 ah->hw_version.devid);
633 ret = __ath9k_hw_init(ah);
636 "Unable to initialize hardware; initialization status: %d\n",
643 EXPORT_SYMBOL(ath9k_hw_init);
645 static void ath9k_hw_init_qos(struct ath_hw *ah)
647 ENABLE_REGWRITE_BUFFER(ah);
649 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
650 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
652 REG_WRITE(ah, AR_QOS_NO_ACK,
653 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
654 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
655 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
657 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
658 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
659 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
660 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
661 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
663 REGWRITE_BUFFER_FLUSH(ah);
666 unsigned long ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
668 REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
670 REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
672 while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0)
675 return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
677 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
679 #define DPLL3_PHASE_SHIFT_VAL 0x1
680 static void ath9k_hw_init_pll(struct ath_hw *ah,
681 struct ath9k_channel *chan)
685 if (AR_SREV_9485(ah)) {
687 /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */
688 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
689 AR_CH0_BB_DPLL2_PLL_PWD, 0x1);
690 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
691 AR_CH0_DPLL2_KD, 0x40);
692 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
693 AR_CH0_DPLL2_KI, 0x4);
695 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
696 AR_CH0_BB_DPLL1_REFDIV, 0x5);
697 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
698 AR_CH0_BB_DPLL1_NINI, 0x58);
699 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
700 AR_CH0_BB_DPLL1_NFRAC, 0x0);
702 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
703 AR_CH0_BB_DPLL2_OUTDIV, 0x1);
704 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
705 AR_CH0_BB_DPLL2_LOCAL_PLL, 0x1);
706 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
707 AR_CH0_BB_DPLL2_EN_NEGTRIG, 0x1);
709 /* program BB PLL phase_shift to 0x6 */
710 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
711 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x6);
713 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
714 AR_CH0_BB_DPLL2_PLL_PWD, 0x0);
717 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
718 AR_CH0_DPLL3_PHASE_SHIFT, DPLL3_PHASE_SHIFT_VAL);
719 } else if (AR_SREV_9340(ah)) {
720 u32 regval, pll2_divint, pll2_divfrac, refdiv;
722 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
725 REG_SET_BIT(ah, AR_PHY_PLL_MODE, 0x1 << 16);
728 if (ah->is_clk_25mhz) {
730 pll2_divfrac = 0x1eb85;
738 regval = REG_READ(ah, AR_PHY_PLL_MODE);
739 regval |= (0x1 << 16);
740 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
743 REG_WRITE(ah, AR_PHY_PLL_CONTROL, (refdiv << 27) |
744 (pll2_divint << 18) | pll2_divfrac);
747 regval = REG_READ(ah, AR_PHY_PLL_MODE);
748 regval = (regval & 0x80071fff) | (0x1 << 30) | (0x1 << 13) |
749 (0x4 << 26) | (0x18 << 19);
750 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
751 REG_WRITE(ah, AR_PHY_PLL_MODE,
752 REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff);
756 pll = ath9k_hw_compute_pll_control(ah, chan);
758 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
760 if (AR_SREV_9485(ah) || AR_SREV_9340(ah))
763 /* Switch the core clock for ar9271 to 117Mhz */
764 if (AR_SREV_9271(ah)) {
766 REG_WRITE(ah, 0x50040, 0x304);
769 udelay(RTC_PLL_SETTLE_DELAY);
771 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
773 if (AR_SREV_9340(ah)) {
774 if (ah->is_clk_25mhz) {
775 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x17c << 1);
776 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f3d7);
777 REG_WRITE(ah, AR_SLP32_INC, 0x0001e7ae);
779 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x261 << 1);
780 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f400);
781 REG_WRITE(ah, AR_SLP32_INC, 0x0001e800);
787 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
788 enum nl80211_iftype opmode)
790 u32 imr_reg = AR_IMR_TXERR |
796 if (AR_SREV_9300_20_OR_LATER(ah)) {
797 imr_reg |= AR_IMR_RXOK_HP;
798 if (ah->config.rx_intr_mitigation)
799 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
801 imr_reg |= AR_IMR_RXOK_LP;
804 if (ah->config.rx_intr_mitigation)
805 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
807 imr_reg |= AR_IMR_RXOK;
810 if (ah->config.tx_intr_mitigation)
811 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
813 imr_reg |= AR_IMR_TXOK;
815 if (opmode == NL80211_IFTYPE_AP)
816 imr_reg |= AR_IMR_MIB;
818 ENABLE_REGWRITE_BUFFER(ah);
820 REG_WRITE(ah, AR_IMR, imr_reg);
821 ah->imrs2_reg |= AR_IMR_S2_GTT;
822 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
824 if (!AR_SREV_9100(ah)) {
825 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
826 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
827 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
830 REGWRITE_BUFFER_FLUSH(ah);
832 if (AR_SREV_9300_20_OR_LATER(ah)) {
833 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
834 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
835 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
836 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
840 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
842 u32 val = ath9k_hw_mac_to_clks(ah, us);
843 val = min(val, (u32) 0xFFFF);
844 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
847 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
849 u32 val = ath9k_hw_mac_to_clks(ah, us);
850 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
851 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
854 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
856 u32 val = ath9k_hw_mac_to_clks(ah, us);
857 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
858 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
861 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
864 ath_dbg(ath9k_hw_common(ah), ATH_DBG_XMIT,
865 "bad global tx timeout %u\n", tu);
866 ah->globaltxtimeout = (u32) -1;
869 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
870 ah->globaltxtimeout = tu;
875 void ath9k_hw_init_global_settings(struct ath_hw *ah)
877 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
882 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
885 if (ah->misc_mode != 0)
886 REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
888 if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ)
893 /* As defined by IEEE 802.11-2007 17.3.8.6 */
894 slottime = ah->slottime + 3 * ah->coverage_class;
895 acktimeout = slottime + sifstime;
898 * Workaround for early ACK timeouts, add an offset to match the
899 * initval's 64us ack timeout value.
900 * This was initially only meant to work around an issue with delayed
901 * BA frames in some implementations, but it has been found to fix ACK
902 * timeout issues in other cases as well.
904 if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
905 acktimeout += 64 - sifstime - ah->slottime;
907 ath9k_hw_setslottime(ah, ah->slottime);
908 ath9k_hw_set_ack_timeout(ah, acktimeout);
909 ath9k_hw_set_cts_timeout(ah, acktimeout);
910 if (ah->globaltxtimeout != (u32) -1)
911 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
913 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
915 void ath9k_hw_deinit(struct ath_hw *ah)
917 struct ath_common *common = ath9k_hw_common(ah);
919 if (common->state < ATH_HW_INITIALIZED)
922 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
925 ath9k_hw_rf_free_ext_banks(ah);
927 EXPORT_SYMBOL(ath9k_hw_deinit);
933 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
935 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
939 else if (IS_CHAN_G(chan))
947 /****************************************/
948 /* Reset and Channel Switching Routines */
949 /****************************************/
951 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
953 struct ath_common *common = ath9k_hw_common(ah);
955 ENABLE_REGWRITE_BUFFER(ah);
958 * set AHB_MODE not to do cacheline prefetches
960 if (!AR_SREV_9300_20_OR_LATER(ah))
961 REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
964 * let mac dma reads be in 128 byte chunks
966 REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK);
968 REGWRITE_BUFFER_FLUSH(ah);
971 * Restore TX Trigger Level to its pre-reset value.
972 * The initial value depends on whether aggregation is enabled, and is
973 * adjusted whenever underruns are detected.
975 if (!AR_SREV_9300_20_OR_LATER(ah))
976 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
978 ENABLE_REGWRITE_BUFFER(ah);
981 * let mac dma writes be in 128 byte chunks
983 REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK);
986 * Setup receive FIFO threshold to hold off TX activities
988 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
990 if (AR_SREV_9300_20_OR_LATER(ah)) {
991 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
992 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
994 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
995 ah->caps.rx_status_len);
999 * reduce the number of usable entries in PCU TXBUF to avoid
1000 * wrap around issues.
1002 if (AR_SREV_9285(ah)) {
1003 /* For AR9285 the number of Fifos are reduced to half.
1004 * So set the usable tx buf size also to half to
1005 * avoid data/delimiter underruns
1007 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1008 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
1009 } else if (!AR_SREV_9271(ah)) {
1010 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1011 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
1014 REGWRITE_BUFFER_FLUSH(ah);
1016 if (AR_SREV_9300_20_OR_LATER(ah))
1017 ath9k_hw_reset_txstatus_ring(ah);
1020 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
1022 u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC;
1023 u32 set = AR_STA_ID1_KSRCH_MODE;
1026 case NL80211_IFTYPE_ADHOC:
1027 case NL80211_IFTYPE_MESH_POINT:
1028 set |= AR_STA_ID1_ADHOC;
1029 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1031 case NL80211_IFTYPE_AP:
1032 set |= AR_STA_ID1_STA_AP;
1034 case NL80211_IFTYPE_STATION:
1035 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1038 if (!ah->is_monitoring)
1042 REG_RMW(ah, AR_STA_ID1, set, mask);
1045 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
1046 u32 *coef_mantissa, u32 *coef_exponent)
1048 u32 coef_exp, coef_man;
1050 for (coef_exp = 31; coef_exp > 0; coef_exp--)
1051 if ((coef_scaled >> coef_exp) & 0x1)
1054 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1056 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1058 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1059 *coef_exponent = coef_exp - 16;
1062 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1067 if (AR_SREV_9100(ah)) {
1068 REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK,
1069 AR_RTC_DERIVED_CLK_PERIOD, 1);
1070 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1073 ENABLE_REGWRITE_BUFFER(ah);
1075 if (AR_SREV_9300_20_OR_LATER(ah)) {
1076 REG_WRITE(ah, AR_WA, ah->WARegVal);
1080 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1081 AR_RTC_FORCE_WAKE_ON_INT);
1083 if (AR_SREV_9100(ah)) {
1084 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1085 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1087 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1089 (AR_INTR_SYNC_LOCAL_TIMEOUT |
1090 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1092 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1095 if (!AR_SREV_9300_20_OR_LATER(ah))
1097 REG_WRITE(ah, AR_RC, val);
1099 } else if (!AR_SREV_9300_20_OR_LATER(ah))
1100 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1102 rst_flags = AR_RTC_RC_MAC_WARM;
1103 if (type == ATH9K_RESET_COLD)
1104 rst_flags |= AR_RTC_RC_MAC_COLD;
1107 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1109 REGWRITE_BUFFER_FLUSH(ah);
1113 REG_WRITE(ah, AR_RTC_RC, 0);
1114 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1115 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
1116 "RTC stuck in MAC reset\n");
1120 if (!AR_SREV_9100(ah))
1121 REG_WRITE(ah, AR_RC, 0);
1123 if (AR_SREV_9100(ah))
1129 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1131 ENABLE_REGWRITE_BUFFER(ah);
1133 if (AR_SREV_9300_20_OR_LATER(ah)) {
1134 REG_WRITE(ah, AR_WA, ah->WARegVal);
1138 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1139 AR_RTC_FORCE_WAKE_ON_INT);
1141 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1142 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1144 REG_WRITE(ah, AR_RTC_RESET, 0);
1146 REGWRITE_BUFFER_FLUSH(ah);
1148 if (!AR_SREV_9300_20_OR_LATER(ah))
1151 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1152 REG_WRITE(ah, AR_RC, 0);
1154 REG_WRITE(ah, AR_RTC_RESET, 1);
1156 if (!ath9k_hw_wait(ah,
1161 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
1162 "RTC not waking up\n");
1166 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1169 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1171 if (AR_SREV_9300_20_OR_LATER(ah)) {
1172 REG_WRITE(ah, AR_WA, ah->WARegVal);
1176 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1177 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1180 case ATH9K_RESET_POWER_ON:
1181 return ath9k_hw_set_reset_power_on(ah);
1182 case ATH9K_RESET_WARM:
1183 case ATH9K_RESET_COLD:
1184 return ath9k_hw_set_reset(ah, type);
1190 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1191 struct ath9k_channel *chan)
1193 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1194 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1196 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1199 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1202 ah->chip_fullsleep = false;
1203 ath9k_hw_init_pll(ah, chan);
1204 ath9k_hw_set_rfmode(ah, chan);
1209 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1210 struct ath9k_channel *chan)
1212 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1213 struct ath_common *common = ath9k_hw_common(ah);
1214 struct ieee80211_channel *channel = chan->chan;
1218 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1219 if (ath9k_hw_numtxpending(ah, qnum)) {
1220 ath_dbg(common, ATH_DBG_QUEUE,
1221 "Transmit frames pending on queue %d\n", qnum);
1226 if (!ath9k_hw_rfbus_req(ah)) {
1227 ath_err(common, "Could not kill baseband RX\n");
1231 ath9k_hw_set_channel_regs(ah, chan);
1233 r = ath9k_hw_rf_set_freq(ah, chan);
1235 ath_err(common, "Failed to set channel\n");
1238 ath9k_hw_set_clockrate(ah);
1240 ah->eep_ops->set_txpower(ah, chan,
1241 ath9k_regd_get_ctl(regulatory, chan),
1242 channel->max_antenna_gain * 2,
1243 channel->max_power * 2,
1244 min((u32) MAX_RATE_POWER,
1245 (u32) regulatory->power_limit), false);
1247 ath9k_hw_rfbus_done(ah);
1249 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1250 ath9k_hw_set_delta_slope(ah, chan);
1252 ath9k_hw_spur_mitigate_freq(ah, chan);
1257 static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
1259 u32 gpio_mask = ah->gpio_mask;
1262 for (i = 0; gpio_mask; i++, gpio_mask >>= 1) {
1263 if (!(gpio_mask & 1))
1266 ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
1267 ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
1271 bool ath9k_hw_check_alive(struct ath_hw *ah)
1276 if (AR_SREV_9285_12_OR_LATER(ah))
1280 reg = REG_READ(ah, AR_OBS_BUS_1);
1282 if ((reg & 0x7E7FFFEF) == 0x00702400)
1285 switch (reg & 0x7E000B00) {
1293 } while (count-- > 0);
1297 EXPORT_SYMBOL(ath9k_hw_check_alive);
1299 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1300 struct ath9k_hw_cal_data *caldata, bool bChannelChange)
1302 struct ath_common *common = ath9k_hw_common(ah);
1304 struct ath9k_channel *curchan = ah->curchan;
1310 ah->txchainmask = common->tx_chainmask;
1311 ah->rxchainmask = common->rx_chainmask;
1313 if ((common->bus_ops->ath_bus_type != ATH_USB) && !ah->chip_fullsleep) {
1314 ath9k_hw_abortpcurecv(ah);
1315 if (!ath9k_hw_stopdmarecv(ah)) {
1316 ath_dbg(common, ATH_DBG_XMIT,
1317 "Failed to stop receive dma\n");
1318 bChannelChange = false;
1322 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1325 if (curchan && !ah->chip_fullsleep)
1326 ath9k_hw_getnf(ah, curchan);
1328 ah->caldata = caldata;
1330 (chan->channel != caldata->channel ||
1331 (chan->channelFlags & ~CHANNEL_CW_INT) !=
1332 (caldata->channelFlags & ~CHANNEL_CW_INT))) {
1333 /* Operating channel changed, reset channel calibration data */
1334 memset(caldata, 0, sizeof(*caldata));
1335 ath9k_init_nfcal_hist_buffer(ah, chan);
1338 if (bChannelChange &&
1339 (ah->chip_fullsleep != true) &&
1340 (ah->curchan != NULL) &&
1341 (chan->channel != ah->curchan->channel) &&
1342 ((chan->channelFlags & CHANNEL_ALL) ==
1343 (ah->curchan->channelFlags & CHANNEL_ALL)) &&
1344 (!AR_SREV_9280(ah) || AR_DEVID_7010(ah))) {
1346 if (ath9k_hw_channel_change(ah, chan)) {
1347 ath9k_hw_loadnf(ah, ah->curchan);
1348 ath9k_hw_start_nfcal(ah, true);
1349 if (AR_SREV_9271(ah))
1350 ar9002_hw_load_ani_reg(ah, chan);
1355 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1356 if (saveDefAntenna == 0)
1359 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1361 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1362 if (AR_SREV_9100(ah) ||
1363 (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)))
1364 tsf = ath9k_hw_gettsf64(ah);
1366 saveLedState = REG_READ(ah, AR_CFG_LED) &
1367 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1368 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1370 ath9k_hw_mark_phy_inactive(ah);
1372 ah->paprd_table_write_done = false;
1374 /* Only required on the first reset */
1375 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1377 AR9271_RESET_POWER_DOWN_CONTROL,
1378 AR9271_RADIO_RF_RST);
1382 if (!ath9k_hw_chip_reset(ah, chan)) {
1383 ath_err(common, "Chip reset failed\n");
1387 /* Only required on the first reset */
1388 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1389 ah->htc_reset_init = false;
1391 AR9271_RESET_POWER_DOWN_CONTROL,
1392 AR9271_GATE_MAC_CTL);
1398 ath9k_hw_settsf64(ah, tsf);
1400 if (AR_SREV_9280_20_OR_LATER(ah))
1401 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1403 if (!AR_SREV_9300_20_OR_LATER(ah))
1404 ar9002_hw_enable_async_fifo(ah);
1406 r = ath9k_hw_process_ini(ah, chan);
1411 * Some AR91xx SoC devices frequently fail to accept TSF writes
1412 * right after the chip reset. When that happens, write a new
1413 * value after the initvals have been applied, with an offset
1414 * based on measured time difference
1416 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1418 ath9k_hw_settsf64(ah, tsf);
1421 /* Setup MFP options for CCMP */
1422 if (AR_SREV_9280_20_OR_LATER(ah)) {
1423 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1424 * frames when constructing CCMP AAD. */
1425 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1427 ah->sw_mgmt_crypto = false;
1428 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1429 /* Disable hardware crypto for management frames */
1430 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1431 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1432 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1433 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1434 ah->sw_mgmt_crypto = true;
1436 ah->sw_mgmt_crypto = true;
1438 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1439 ath9k_hw_set_delta_slope(ah, chan);
1441 ath9k_hw_spur_mitigate_freq(ah, chan);
1442 ah->eep_ops->set_board_values(ah, chan);
1444 ENABLE_REGWRITE_BUFFER(ah);
1446 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1447 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
1449 | AR_STA_ID1_RTS_USE_DEF
1451 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1452 | ah->sta_id1_defaults);
1453 ath_hw_setbssidmask(common);
1454 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1455 ath9k_hw_write_associd(ah);
1456 REG_WRITE(ah, AR_ISR, ~0);
1457 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1459 REGWRITE_BUFFER_FLUSH(ah);
1461 ath9k_hw_set_operating_mode(ah, ah->opmode);
1463 r = ath9k_hw_rf_set_freq(ah, chan);
1467 ath9k_hw_set_clockrate(ah);
1469 ENABLE_REGWRITE_BUFFER(ah);
1471 for (i = 0; i < AR_NUM_DCU; i++)
1472 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1474 REGWRITE_BUFFER_FLUSH(ah);
1477 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
1478 ath9k_hw_resettxqueue(ah, i);
1480 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1481 ath9k_hw_ani_cache_ini_regs(ah);
1482 ath9k_hw_init_qos(ah);
1484 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1485 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
1487 ath9k_hw_init_global_settings(ah);
1489 if (!AR_SREV_9300_20_OR_LATER(ah)) {
1490 ar9002_hw_update_async_fifo(ah);
1491 ar9002_hw_enable_wep_aggregation(ah);
1494 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
1496 ath9k_hw_set_dma(ah);
1498 REG_WRITE(ah, AR_OBS, 8);
1500 if (ah->config.rx_intr_mitigation) {
1501 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
1502 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
1505 if (ah->config.tx_intr_mitigation) {
1506 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1507 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1510 ath9k_hw_init_bb(ah, chan);
1512 if (!ath9k_hw_init_cal(ah, chan))
1515 ENABLE_REGWRITE_BUFFER(ah);
1517 ath9k_hw_restore_chainmask(ah);
1518 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1520 REGWRITE_BUFFER_FLUSH(ah);
1523 * For big endian systems turn on swapping for descriptors
1525 if (AR_SREV_9100(ah)) {
1527 mask = REG_READ(ah, AR_CFG);
1528 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1529 ath_dbg(common, ATH_DBG_RESET,
1530 "CFG Byte Swap Set 0x%x\n", mask);
1533 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1534 REG_WRITE(ah, AR_CFG, mask);
1535 ath_dbg(common, ATH_DBG_RESET,
1536 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
1539 if (common->bus_ops->ath_bus_type == ATH_USB) {
1540 /* Configure AR9271 target WLAN */
1541 if (AR_SREV_9271(ah))
1542 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1544 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1548 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1552 if (ah->btcoex_hw.enabled)
1553 ath9k_hw_btcoex_enable(ah);
1555 if (AR_SREV_9300_20_OR_LATER(ah))
1556 ar9003_hw_bb_watchdog_config(ah);
1558 ath9k_hw_apply_gpio_override(ah);
1562 EXPORT_SYMBOL(ath9k_hw_reset);
1564 /******************************/
1565 /* Power Management (Chipset) */
1566 /******************************/
1569 * Notify Power Mgt is disabled in self-generated frames.
1570 * If requested, force chip to sleep.
1572 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
1574 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1577 * Clear the RTC force wake bit to allow the
1578 * mac to go to sleep.
1580 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1581 AR_RTC_FORCE_WAKE_EN);
1582 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1583 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1585 /* Shutdown chip. Active low */
1586 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah))
1587 REG_CLR_BIT(ah, (AR_RTC_RESET),
1591 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
1592 if (AR_SREV_9300_20_OR_LATER(ah))
1593 REG_WRITE(ah, AR_WA,
1594 ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1598 * Notify Power Management is enabled in self-generating
1599 * frames. If request, set power mode of chip to
1600 * auto/normal. Duration in units of 128us (1/8 TU).
1602 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
1604 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1606 struct ath9k_hw_capabilities *pCap = &ah->caps;
1608 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1609 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1610 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1611 AR_RTC_FORCE_WAKE_ON_INT);
1614 * Clear the RTC force wake bit to allow the
1615 * mac to go to sleep.
1617 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1618 AR_RTC_FORCE_WAKE_EN);
1622 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
1623 if (AR_SREV_9300_20_OR_LATER(ah))
1624 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1627 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
1632 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
1633 if (AR_SREV_9300_20_OR_LATER(ah)) {
1634 REG_WRITE(ah, AR_WA, ah->WARegVal);
1639 if ((REG_READ(ah, AR_RTC_STATUS) &
1640 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1641 if (ath9k_hw_set_reset_reg(ah,
1642 ATH9K_RESET_POWER_ON) != true) {
1645 if (!AR_SREV_9300_20_OR_LATER(ah))
1646 ath9k_hw_init_pll(ah, NULL);
1648 if (AR_SREV_9100(ah))
1649 REG_SET_BIT(ah, AR_RTC_RESET,
1652 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1653 AR_RTC_FORCE_WAKE_EN);
1656 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1657 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1658 if (val == AR_RTC_STATUS_ON)
1661 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1662 AR_RTC_FORCE_WAKE_EN);
1665 ath_err(ath9k_hw_common(ah),
1666 "Failed to wakeup in %uus\n",
1667 POWER_UP_TIME / 20);
1672 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1677 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
1679 struct ath_common *common = ath9k_hw_common(ah);
1680 int status = true, setChip = true;
1681 static const char *modes[] = {
1688 if (ah->power_mode == mode)
1691 ath_dbg(common, ATH_DBG_RESET, "%s -> %s\n",
1692 modes[ah->power_mode], modes[mode]);
1695 case ATH9K_PM_AWAKE:
1696 status = ath9k_hw_set_power_awake(ah, setChip);
1698 case ATH9K_PM_FULL_SLEEP:
1699 ath9k_set_power_sleep(ah, setChip);
1700 ah->chip_fullsleep = true;
1702 case ATH9K_PM_NETWORK_SLEEP:
1703 ath9k_set_power_network_sleep(ah, setChip);
1706 ath_err(common, "Unknown power mode %u\n", mode);
1709 ah->power_mode = mode;
1712 * XXX: If this warning never comes up after a while then
1713 * simply keep the ATH_DBG_WARN_ON_ONCE() but make
1714 * ath9k_hw_setpower() return type void.
1717 if (!(ah->ah_flags & AH_UNPLUGGED))
1718 ATH_DBG_WARN_ON_ONCE(!status);
1722 EXPORT_SYMBOL(ath9k_hw_setpower);
1724 /*******************/
1725 /* Beacon Handling */
1726 /*******************/
1728 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
1732 ENABLE_REGWRITE_BUFFER(ah);
1734 switch (ah->opmode) {
1735 case NL80211_IFTYPE_ADHOC:
1736 case NL80211_IFTYPE_MESH_POINT:
1737 REG_SET_BIT(ah, AR_TXCFG,
1738 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
1739 REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon +
1740 TU_TO_USEC(ah->atim_window ? ah->atim_window : 1));
1741 flags |= AR_NDP_TIMER_EN;
1742 case NL80211_IFTYPE_AP:
1743 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
1744 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
1745 TU_TO_USEC(ah->config.dma_beacon_response_time));
1746 REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
1747 TU_TO_USEC(ah->config.sw_beacon_response_time));
1749 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
1752 ath_dbg(ath9k_hw_common(ah), ATH_DBG_BEACON,
1753 "%s: unsupported opmode: %d\n",
1754 __func__, ah->opmode);
1759 REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
1760 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
1761 REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
1762 REG_WRITE(ah, AR_NDP_PERIOD, beacon_period);
1764 REGWRITE_BUFFER_FLUSH(ah);
1766 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
1768 EXPORT_SYMBOL(ath9k_hw_beaconinit);
1770 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
1771 const struct ath9k_beacon_state *bs)
1773 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
1774 struct ath9k_hw_capabilities *pCap = &ah->caps;
1775 struct ath_common *common = ath9k_hw_common(ah);
1777 ENABLE_REGWRITE_BUFFER(ah);
1779 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
1781 REG_WRITE(ah, AR_BEACON_PERIOD,
1782 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1783 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
1784 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1786 REGWRITE_BUFFER_FLUSH(ah);
1788 REG_RMW_FIELD(ah, AR_RSSI_THR,
1789 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
1791 beaconintval = bs->bs_intval & ATH9K_BEACON_PERIOD;
1793 if (bs->bs_sleepduration > beaconintval)
1794 beaconintval = bs->bs_sleepduration;
1796 dtimperiod = bs->bs_dtimperiod;
1797 if (bs->bs_sleepduration > dtimperiod)
1798 dtimperiod = bs->bs_sleepduration;
1800 if (beaconintval == dtimperiod)
1801 nextTbtt = bs->bs_nextdtim;
1803 nextTbtt = bs->bs_nexttbtt;
1805 ath_dbg(common, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
1806 ath_dbg(common, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
1807 ath_dbg(common, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
1808 ath_dbg(common, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
1810 ENABLE_REGWRITE_BUFFER(ah);
1812 REG_WRITE(ah, AR_NEXT_DTIM,
1813 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
1814 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
1816 REG_WRITE(ah, AR_SLEEP1,
1817 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
1818 | AR_SLEEP1_ASSUME_DTIM);
1820 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
1821 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
1823 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
1825 REG_WRITE(ah, AR_SLEEP2,
1826 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
1828 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
1829 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
1831 REGWRITE_BUFFER_FLUSH(ah);
1833 REG_SET_BIT(ah, AR_TIMER_MODE,
1834 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
1837 /* TSF Out of Range Threshold */
1838 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
1840 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
1842 /*******************/
1843 /* HW Capabilities */
1844 /*******************/
1846 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
1848 struct ath9k_hw_capabilities *pCap = &ah->caps;
1849 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1850 struct ath_common *common = ath9k_hw_common(ah);
1851 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
1853 u16 capField = 0, eeval;
1854 u8 ant_div_ctl1, tx_chainmask, rx_chainmask;
1856 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
1857 regulatory->current_rd = eeval;
1859 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_1);
1860 if (AR_SREV_9285_12_OR_LATER(ah))
1861 eeval |= AR9285_RDEXT_DEFAULT;
1862 regulatory->current_rd_ext = eeval;
1864 capField = ah->eep_ops->get_eeprom(ah, EEP_OP_CAP);
1866 if (ah->opmode != NL80211_IFTYPE_AP &&
1867 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
1868 if (regulatory->current_rd == 0x64 ||
1869 regulatory->current_rd == 0x65)
1870 regulatory->current_rd += 5;
1871 else if (regulatory->current_rd == 0x41)
1872 regulatory->current_rd = 0x43;
1873 ath_dbg(common, ATH_DBG_REGULATORY,
1874 "regdomain mapped to 0x%x\n", regulatory->current_rd);
1877 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
1878 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
1880 "no band has been marked as supported in EEPROM\n");
1884 if (eeval & AR5416_OPFLAGS_11A)
1885 pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
1887 if (eeval & AR5416_OPFLAGS_11G)
1888 pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
1890 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
1892 * For AR9271 we will temporarilly uses the rx chainmax as read from
1895 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
1896 !(eeval & AR5416_OPFLAGS_11A) &&
1897 !(AR_SREV_9271(ah)))
1898 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
1899 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
1900 else if (AR_SREV_9100(ah))
1901 pCap->rx_chainmask = 0x7;
1903 /* Use rx_chainmask from EEPROM. */
1904 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
1906 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
1908 /* enable key search for every frame in an aggregate */
1909 if (AR_SREV_9300_20_OR_LATER(ah))
1910 ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
1912 common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
1914 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
1915 pCap->hw_caps |= ATH9K_HW_CAP_HT;
1917 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
1919 if (AR_SREV_9271(ah))
1920 pCap->num_gpio_pins = AR9271_NUM_GPIO;
1921 else if (AR_DEVID_7010(ah))
1922 pCap->num_gpio_pins = AR7010_NUM_GPIO;
1923 else if (AR_SREV_9285_12_OR_LATER(ah))
1924 pCap->num_gpio_pins = AR9285_NUM_GPIO;
1925 else if (AR_SREV_9280_20_OR_LATER(ah))
1926 pCap->num_gpio_pins = AR928X_NUM_GPIO;
1928 pCap->num_gpio_pins = AR_NUM_GPIO;
1930 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
1931 pCap->hw_caps |= ATH9K_HW_CAP_CST;
1932 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
1934 pCap->rts_aggr_limit = (8 * 1024);
1937 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
1938 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
1939 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
1941 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
1942 ah->rfkill_polarity =
1943 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
1945 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
1948 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
1949 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
1951 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
1953 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
1954 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
1956 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
1958 if (AR_SREV_9280_20_OR_LATER(ah) && common->btcoex_enabled) {
1959 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
1960 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
1962 if (AR_SREV_9285(ah)) {
1963 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
1964 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
1966 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
1969 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
1972 if (AR_SREV_9300_20_OR_LATER(ah)) {
1973 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
1974 if (!AR_SREV_9485(ah))
1975 pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
1977 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
1978 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
1979 pCap->rx_status_len = sizeof(struct ar9003_rxs);
1980 pCap->tx_desc_len = sizeof(struct ar9003_txc);
1981 pCap->txs_len = sizeof(struct ar9003_txs);
1982 if (!ah->config.paprd_disable &&
1983 ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
1984 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
1986 pCap->tx_desc_len = sizeof(struct ath_desc);
1987 if (AR_SREV_9280_20(ah) &&
1988 ((ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) <=
1989 AR5416_EEP_MINOR_VER_16) ||
1990 ah->eep_ops->get_eeprom(ah, EEP_FSTCLK_5G)))
1991 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
1994 if (AR_SREV_9300_20_OR_LATER(ah))
1995 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
1997 if (AR_SREV_9300_20_OR_LATER(ah))
1998 ah->ent_mode = REG_READ(ah, AR_ENT_OTP);
2000 if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah))
2001 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
2003 if (AR_SREV_9285(ah))
2004 if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) {
2006 ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2007 if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1))
2008 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2010 if (AR_SREV_9300_20_OR_LATER(ah)) {
2011 if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
2012 pCap->hw_caps |= ATH9K_HW_CAP_APM;
2017 if (AR_SREV_9485_10(ah)) {
2018 pCap->pcie_lcr_extsync_en = true;
2019 pCap->pcie_lcr_offset = 0x80;
2022 tx_chainmask = pCap->tx_chainmask;
2023 rx_chainmask = pCap->rx_chainmask;
2024 while (tx_chainmask || rx_chainmask) {
2025 if (tx_chainmask & BIT(0))
2026 pCap->max_txchains++;
2027 if (rx_chainmask & BIT(0))
2028 pCap->max_rxchains++;
2037 /****************************/
2038 /* GPIO / RFKILL / Antennae */
2039 /****************************/
2041 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2045 u32 gpio_shift, tmp;
2048 addr = AR_GPIO_OUTPUT_MUX3;
2050 addr = AR_GPIO_OUTPUT_MUX2;
2052 addr = AR_GPIO_OUTPUT_MUX1;
2054 gpio_shift = (gpio % 6) * 5;
2056 if (AR_SREV_9280_20_OR_LATER(ah)
2057 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2058 REG_RMW(ah, addr, (type << gpio_shift),
2059 (0x1f << gpio_shift));
2061 tmp = REG_READ(ah, addr);
2062 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2063 tmp &= ~(0x1f << gpio_shift);
2064 tmp |= (type << gpio_shift);
2065 REG_WRITE(ah, addr, tmp);
2069 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2073 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2075 if (AR_DEVID_7010(ah)) {
2077 REG_RMW(ah, AR7010_GPIO_OE,
2078 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2079 (AR7010_GPIO_OE_MASK << gpio_shift));
2083 gpio_shift = gpio << 1;
2086 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2087 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2089 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2091 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2093 #define MS_REG_READ(x, y) \
2094 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2096 if (gpio >= ah->caps.num_gpio_pins)
2099 if (AR_DEVID_7010(ah)) {
2101 val = REG_READ(ah, AR7010_GPIO_IN);
2102 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2103 } else if (AR_SREV_9300_20_OR_LATER(ah))
2104 return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
2105 AR_GPIO_BIT(gpio)) != 0;
2106 else if (AR_SREV_9271(ah))
2107 return MS_REG_READ(AR9271, gpio) != 0;
2108 else if (AR_SREV_9287_11_OR_LATER(ah))
2109 return MS_REG_READ(AR9287, gpio) != 0;
2110 else if (AR_SREV_9285_12_OR_LATER(ah))
2111 return MS_REG_READ(AR9285, gpio) != 0;
2112 else if (AR_SREV_9280_20_OR_LATER(ah))
2113 return MS_REG_READ(AR928X, gpio) != 0;
2115 return MS_REG_READ(AR, gpio) != 0;
2117 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2119 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2124 if (AR_DEVID_7010(ah)) {
2126 REG_RMW(ah, AR7010_GPIO_OE,
2127 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2128 (AR7010_GPIO_OE_MASK << gpio_shift));
2132 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2133 gpio_shift = 2 * gpio;
2136 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2137 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2139 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2141 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2143 if (AR_DEVID_7010(ah)) {
2145 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2150 if (AR_SREV_9271(ah))
2153 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2156 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2158 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
2160 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
2162 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
2164 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2166 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2168 EXPORT_SYMBOL(ath9k_hw_setantenna);
2170 /*********************/
2171 /* General Operation */
2172 /*********************/
2174 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2176 u32 bits = REG_READ(ah, AR_RX_FILTER);
2177 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2179 if (phybits & AR_PHY_ERR_RADAR)
2180 bits |= ATH9K_RX_FILTER_PHYRADAR;
2181 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2182 bits |= ATH9K_RX_FILTER_PHYERR;
2186 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2188 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2192 ENABLE_REGWRITE_BUFFER(ah);
2194 REG_WRITE(ah, AR_RX_FILTER, bits);
2197 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2198 phybits |= AR_PHY_ERR_RADAR;
2199 if (bits & ATH9K_RX_FILTER_PHYERR)
2200 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2201 REG_WRITE(ah, AR_PHY_ERR, phybits);
2204 REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2206 REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2208 REGWRITE_BUFFER_FLUSH(ah);
2210 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2212 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2214 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2217 ath9k_hw_init_pll(ah, NULL);
2220 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2222 bool ath9k_hw_disable(struct ath_hw *ah)
2224 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2227 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2230 ath9k_hw_init_pll(ah, NULL);
2233 EXPORT_SYMBOL(ath9k_hw_disable);
2235 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
2237 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2238 struct ath9k_channel *chan = ah->curchan;
2239 struct ieee80211_channel *channel = chan->chan;
2241 regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
2243 ah->eep_ops->set_txpower(ah, chan,
2244 ath9k_regd_get_ctl(regulatory, chan),
2245 channel->max_antenna_gain * 2,
2246 channel->max_power * 2,
2247 min((u32) MAX_RATE_POWER,
2248 (u32) regulatory->power_limit), test);
2250 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2252 void ath9k_hw_setopmode(struct ath_hw *ah)
2254 ath9k_hw_set_operating_mode(ah, ah->opmode);
2256 EXPORT_SYMBOL(ath9k_hw_setopmode);
2258 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2260 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2261 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2263 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2265 void ath9k_hw_write_associd(struct ath_hw *ah)
2267 struct ath_common *common = ath9k_hw_common(ah);
2269 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2270 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2271 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2273 EXPORT_SYMBOL(ath9k_hw_write_associd);
2275 #define ATH9K_MAX_TSF_READ 10
2277 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2279 u32 tsf_lower, tsf_upper1, tsf_upper2;
2282 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2283 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2284 tsf_lower = REG_READ(ah, AR_TSF_L32);
2285 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2286 if (tsf_upper2 == tsf_upper1)
2288 tsf_upper1 = tsf_upper2;
2291 WARN_ON( i == ATH9K_MAX_TSF_READ );
2293 return (((u64)tsf_upper1 << 32) | tsf_lower);
2295 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2297 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2299 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2300 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2302 EXPORT_SYMBOL(ath9k_hw_settsf64);
2304 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2306 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2307 AH_TSF_WRITE_TIMEOUT))
2308 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
2309 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2311 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2313 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2315 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
2318 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2320 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2322 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2324 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2326 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2329 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2330 macmode = AR_2040_JOINED_RX_CLEAR;
2334 REG_WRITE(ah, AR_2040_MODE, macmode);
2337 /* HW Generic timers configuration */
2339 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2341 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2342 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2343 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2344 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2345 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2346 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2347 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2348 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2349 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2350 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2351 AR_NDP2_TIMER_MODE, 0x0002},
2352 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2353 AR_NDP2_TIMER_MODE, 0x0004},
2354 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2355 AR_NDP2_TIMER_MODE, 0x0008},
2356 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2357 AR_NDP2_TIMER_MODE, 0x0010},
2358 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2359 AR_NDP2_TIMER_MODE, 0x0020},
2360 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2361 AR_NDP2_TIMER_MODE, 0x0040},
2362 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2363 AR_NDP2_TIMER_MODE, 0x0080}
2366 /* HW generic timer primitives */
2368 /* compute and clear index of rightmost 1 */
2369 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2379 return timer_table->gen_timer_index[b];
2382 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2384 return REG_READ(ah, AR_TSF_L32);
2386 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2388 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2389 void (*trigger)(void *),
2390 void (*overflow)(void *),
2394 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2395 struct ath_gen_timer *timer;
2397 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2399 if (timer == NULL) {
2400 ath_err(ath9k_hw_common(ah),
2401 "Failed to allocate memory for hw timer[%d]\n",
2406 /* allocate a hardware generic timer slot */
2407 timer_table->timers[timer_index] = timer;
2408 timer->index = timer_index;
2409 timer->trigger = trigger;
2410 timer->overflow = overflow;
2415 EXPORT_SYMBOL(ath_gen_timer_alloc);
2417 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2418 struct ath_gen_timer *timer,
2422 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2425 BUG_ON(!timer_period);
2427 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2429 tsf = ath9k_hw_gettsf32(ah);
2431 ath_dbg(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
2432 "current tsf %x period %x timer_next %x\n",
2433 tsf, timer_period, timer_next);
2436 * Pull timer_next forward if the current TSF already passed it
2437 * because of software latency
2439 if (timer_next < tsf)
2440 timer_next = tsf + timer_period;
2443 * Program generic timer registers
2445 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2447 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2449 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2450 gen_tmr_configuration[timer->index].mode_mask);
2452 /* Enable both trigger and thresh interrupt masks */
2453 REG_SET_BIT(ah, AR_IMR_S5,
2454 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2455 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2457 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2459 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2461 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2463 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2464 (timer->index >= ATH_MAX_GEN_TIMER)) {
2468 /* Clear generic timer enable bits. */
2469 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2470 gen_tmr_configuration[timer->index].mode_mask);
2472 /* Disable both trigger and thresh interrupt masks */
2473 REG_CLR_BIT(ah, AR_IMR_S5,
2474 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2475 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2477 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
2479 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
2481 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2483 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2485 /* free the hardware generic timer slot */
2486 timer_table->timers[timer->index] = NULL;
2489 EXPORT_SYMBOL(ath_gen_timer_free);
2492 * Generic Timer Interrupts handling
2494 void ath_gen_timer_isr(struct ath_hw *ah)
2496 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2497 struct ath_gen_timer *timer;
2498 struct ath_common *common = ath9k_hw_common(ah);
2499 u32 trigger_mask, thresh_mask, index;
2501 /* get hardware generic timer interrupt status */
2502 trigger_mask = ah->intr_gen_timer_trigger;
2503 thresh_mask = ah->intr_gen_timer_thresh;
2504 trigger_mask &= timer_table->timer_mask.val;
2505 thresh_mask &= timer_table->timer_mask.val;
2507 trigger_mask &= ~thresh_mask;
2509 while (thresh_mask) {
2510 index = rightmost_index(timer_table, &thresh_mask);
2511 timer = timer_table->timers[index];
2513 ath_dbg(common, ATH_DBG_HWTIMER,
2514 "TSF overflow for Gen timer %d\n", index);
2515 timer->overflow(timer->arg);
2518 while (trigger_mask) {
2519 index = rightmost_index(timer_table, &trigger_mask);
2520 timer = timer_table->timers[index];
2522 ath_dbg(common, ATH_DBG_HWTIMER,
2523 "Gen timer[%d] trigger\n", index);
2524 timer->trigger(timer->arg);
2527 EXPORT_SYMBOL(ath_gen_timer_isr);
2533 void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2535 ah->htc_reset_init = true;
2537 EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2542 } ath_mac_bb_names[] = {
2543 /* Devices with external radios */
2544 { AR_SREV_VERSION_5416_PCI, "5416" },
2545 { AR_SREV_VERSION_5416_PCIE, "5418" },
2546 { AR_SREV_VERSION_9100, "9100" },
2547 { AR_SREV_VERSION_9160, "9160" },
2548 /* Single-chip solutions */
2549 { AR_SREV_VERSION_9280, "9280" },
2550 { AR_SREV_VERSION_9285, "9285" },
2551 { AR_SREV_VERSION_9287, "9287" },
2552 { AR_SREV_VERSION_9271, "9271" },
2553 { AR_SREV_VERSION_9300, "9300" },
2554 { AR_SREV_VERSION_9485, "9485" },
2557 /* For devices with external radios */
2561 } ath_rf_names[] = {
2563 { AR_RAD5133_SREV_MAJOR, "5133" },
2564 { AR_RAD5122_SREV_MAJOR, "5122" },
2565 { AR_RAD2133_SREV_MAJOR, "2133" },
2566 { AR_RAD2122_SREV_MAJOR, "2122" }
2570 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2572 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2576 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
2577 if (ath_mac_bb_names[i].version == mac_bb_version) {
2578 return ath_mac_bb_names[i].name;
2586 * Return the RF name. "????" is returned if the RF is unknown.
2587 * Used for devices with external radios.
2589 static const char *ath9k_hw_rf_name(u16 rf_version)
2593 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
2594 if (ath_rf_names[i].version == rf_version) {
2595 return ath_rf_names[i].name;
2602 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
2606 /* chipsets >= AR9280 are single-chip */
2607 if (AR_SREV_9280_20_OR_LATER(ah)) {
2608 used = snprintf(hw_name, len,
2609 "Atheros AR%s Rev:%x",
2610 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2611 ah->hw_version.macRev);
2614 used = snprintf(hw_name, len,
2615 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2616 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2617 ah->hw_version.macRev,
2618 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
2619 AR_RADIO_SREV_MAJOR)),
2620 ah->hw_version.phyRev);
2623 hw_name[used] = '\0';
2625 EXPORT_SYMBOL(ath9k_hw_name);