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 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
138 for (i = 0, retval = 0; i < n; i++) {
139 retval = (retval << 1) | (val & 1);
145 bool ath9k_get_channel_edges(struct ath_hw *ah,
149 struct ath9k_hw_capabilities *pCap = &ah->caps;
151 if (flags & CHANNEL_5GHZ) {
152 *low = pCap->low_5ghz_chan;
153 *high = pCap->high_5ghz_chan;
156 if ((flags & CHANNEL_2GHZ)) {
157 *low = pCap->low_2ghz_chan;
158 *high = pCap->high_2ghz_chan;
164 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
166 u32 frameLen, u16 rateix,
169 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
175 case WLAN_RC_PHY_CCK:
176 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
179 numBits = frameLen << 3;
180 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
182 case WLAN_RC_PHY_OFDM:
183 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
184 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
185 numBits = OFDM_PLCP_BITS + (frameLen << 3);
186 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
187 txTime = OFDM_SIFS_TIME_QUARTER
188 + OFDM_PREAMBLE_TIME_QUARTER
189 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
190 } else if (ah->curchan &&
191 IS_CHAN_HALF_RATE(ah->curchan)) {
192 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
193 numBits = OFDM_PLCP_BITS + (frameLen << 3);
194 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
195 txTime = OFDM_SIFS_TIME_HALF +
196 OFDM_PREAMBLE_TIME_HALF
197 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
199 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
200 numBits = OFDM_PLCP_BITS + (frameLen << 3);
201 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
202 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
203 + (numSymbols * OFDM_SYMBOL_TIME);
207 ath_err(ath9k_hw_common(ah),
208 "Unknown phy %u (rate ix %u)\n", phy, rateix);
215 EXPORT_SYMBOL(ath9k_hw_computetxtime);
217 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
218 struct ath9k_channel *chan,
219 struct chan_centers *centers)
223 if (!IS_CHAN_HT40(chan)) {
224 centers->ctl_center = centers->ext_center =
225 centers->synth_center = chan->channel;
229 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
230 (chan->chanmode == CHANNEL_G_HT40PLUS)) {
231 centers->synth_center =
232 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
235 centers->synth_center =
236 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
240 centers->ctl_center =
241 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
242 /* 25 MHz spacing is supported by hw but not on upper layers */
243 centers->ext_center =
244 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
251 static void ath9k_hw_read_revisions(struct ath_hw *ah)
255 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
258 val = REG_READ(ah, AR_SREV);
259 ah->hw_version.macVersion =
260 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
261 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
262 ah->is_pciexpress = (val & AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
264 if (!AR_SREV_9100(ah))
265 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
267 ah->hw_version.macRev = val & AR_SREV_REVISION;
269 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
270 ah->is_pciexpress = true;
274 /************************************/
275 /* HW Attach, Detach, Init Routines */
276 /************************************/
278 static void ath9k_hw_disablepcie(struct ath_hw *ah)
280 if (!AR_SREV_5416(ah))
283 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
284 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
285 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
286 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
287 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
288 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
289 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
290 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
291 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
293 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
296 /* This should work for all families including legacy */
297 static bool ath9k_hw_chip_test(struct ath_hw *ah)
299 struct ath_common *common = ath9k_hw_common(ah);
300 u32 regAddr[2] = { AR_STA_ID0 };
302 static const u32 patternData[4] = {
303 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999
307 if (!AR_SREV_9300_20_OR_LATER(ah)) {
309 regAddr[1] = AR_PHY_BASE + (8 << 2);
313 for (i = 0; i < loop_max; i++) {
314 u32 addr = regAddr[i];
317 regHold[i] = REG_READ(ah, addr);
318 for (j = 0; j < 0x100; j++) {
319 wrData = (j << 16) | j;
320 REG_WRITE(ah, addr, wrData);
321 rdData = REG_READ(ah, addr);
322 if (rdData != wrData) {
324 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
325 addr, wrData, rdData);
329 for (j = 0; j < 4; j++) {
330 wrData = patternData[j];
331 REG_WRITE(ah, addr, wrData);
332 rdData = REG_READ(ah, addr);
333 if (wrData != rdData) {
335 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
336 addr, wrData, rdData);
340 REG_WRITE(ah, regAddr[i], regHold[i]);
347 static void ath9k_hw_init_config(struct ath_hw *ah)
351 ah->config.dma_beacon_response_time = 2;
352 ah->config.sw_beacon_response_time = 10;
353 ah->config.additional_swba_backoff = 0;
354 ah->config.ack_6mb = 0x0;
355 ah->config.cwm_ignore_extcca = 0;
356 ah->config.pcie_powersave_enable = 0;
357 ah->config.pcie_clock_req = 0;
358 ah->config.pcie_waen = 0;
359 ah->config.analog_shiftreg = 1;
360 ah->config.enable_ani = true;
362 for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
363 ah->config.spurchans[i][0] = AR_NO_SPUR;
364 ah->config.spurchans[i][1] = AR_NO_SPUR;
367 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
368 ah->config.ht_enable = 1;
370 ah->config.ht_enable = 0;
372 ah->config.rx_intr_mitigation = true;
373 ah->config.pcieSerDesWrite = true;
376 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
377 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
378 * This means we use it for all AR5416 devices, and the few
379 * minor PCI AR9280 devices out there.
381 * Serialization is required because these devices do not handle
382 * well the case of two concurrent reads/writes due to the latency
383 * involved. During one read/write another read/write can be issued
384 * on another CPU while the previous read/write may still be working
385 * on our hardware, if we hit this case the hardware poops in a loop.
386 * We prevent this by serializing reads and writes.
388 * This issue is not present on PCI-Express devices or pre-AR5416
389 * devices (legacy, 802.11abg).
391 if (num_possible_cpus() > 1)
392 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
395 static void ath9k_hw_init_defaults(struct ath_hw *ah)
397 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
399 regulatory->country_code = CTRY_DEFAULT;
400 regulatory->power_limit = MAX_RATE_POWER;
401 regulatory->tp_scale = ATH9K_TP_SCALE_MAX;
403 ah->hw_version.magic = AR5416_MAGIC;
404 ah->hw_version.subvendorid = 0;
407 ah->sta_id1_defaults =
408 AR_STA_ID1_CRPT_MIC_ENABLE |
409 AR_STA_ID1_MCAST_KSRCH;
410 ah->enable_32kHz_clock = DONT_USE_32KHZ;
412 ah->globaltxtimeout = (u32) -1;
413 ah->power_mode = ATH9K_PM_UNDEFINED;
416 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
418 struct ath_common *common = ath9k_hw_common(ah);
422 static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
425 for (i = 0; i < 3; i++) {
426 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
428 common->macaddr[2 * i] = eeval >> 8;
429 common->macaddr[2 * i + 1] = eeval & 0xff;
431 if (sum == 0 || sum == 0xffff * 3)
432 return -EADDRNOTAVAIL;
437 static int ath9k_hw_post_init(struct ath_hw *ah)
439 struct ath_common *common = ath9k_hw_common(ah);
442 if (common->bus_ops->ath_bus_type != ATH_USB) {
443 if (!ath9k_hw_chip_test(ah))
447 if (!AR_SREV_9300_20_OR_LATER(ah)) {
448 ecode = ar9002_hw_rf_claim(ah);
453 ecode = ath9k_hw_eeprom_init(ah);
457 ath_dbg(ath9k_hw_common(ah), ATH_DBG_CONFIG,
458 "Eeprom VER: %d, REV: %d\n",
459 ah->eep_ops->get_eeprom_ver(ah),
460 ah->eep_ops->get_eeprom_rev(ah));
462 ecode = ath9k_hw_rf_alloc_ext_banks(ah);
464 ath_err(ath9k_hw_common(ah),
465 "Failed allocating banks for external radio\n");
466 ath9k_hw_rf_free_ext_banks(ah);
470 if (!AR_SREV_9100(ah)) {
471 ath9k_hw_ani_setup(ah);
472 ath9k_hw_ani_init(ah);
478 static void ath9k_hw_attach_ops(struct ath_hw *ah)
480 if (AR_SREV_9300_20_OR_LATER(ah))
481 ar9003_hw_attach_ops(ah);
483 ar9002_hw_attach_ops(ah);
486 /* Called for all hardware families */
487 static int __ath9k_hw_init(struct ath_hw *ah)
489 struct ath_common *common = ath9k_hw_common(ah);
492 if (ah->hw_version.devid == AR5416_AR9100_DEVID)
493 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
495 ath9k_hw_read_revisions(ah);
498 * Read back AR_WA into a permanent copy and set bits 14 and 17.
499 * We need to do this to avoid RMW of this register. We cannot
500 * read the reg when chip is asleep.
502 ah->WARegVal = REG_READ(ah, AR_WA);
503 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
504 AR_WA_ASPM_TIMER_BASED_DISABLE);
506 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
507 ath_err(common, "Couldn't reset chip\n");
511 ath9k_hw_init_defaults(ah);
512 ath9k_hw_init_config(ah);
514 ath9k_hw_attach_ops(ah);
516 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
517 ath_err(common, "Couldn't wakeup chip\n");
521 if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
522 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
523 ((AR_SREV_9160(ah) || AR_SREV_9280(ah)) &&
524 !ah->is_pciexpress)) {
525 ah->config.serialize_regmode =
528 ah->config.serialize_regmode =
533 ath_dbg(common, ATH_DBG_RESET, "serialize_regmode is %d\n",
534 ah->config.serialize_regmode);
536 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
537 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
539 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
541 switch (ah->hw_version.macVersion) {
542 case AR_SREV_VERSION_5416_PCI:
543 case AR_SREV_VERSION_5416_PCIE:
544 case AR_SREV_VERSION_9160:
545 case AR_SREV_VERSION_9100:
546 case AR_SREV_VERSION_9280:
547 case AR_SREV_VERSION_9285:
548 case AR_SREV_VERSION_9287:
549 case AR_SREV_VERSION_9271:
550 case AR_SREV_VERSION_9300:
551 case AR_SREV_VERSION_9485:
555 "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
556 ah->hw_version.macVersion, ah->hw_version.macRev);
560 if (AR_SREV_9271(ah) || AR_SREV_9100(ah))
561 ah->is_pciexpress = false;
563 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
564 ath9k_hw_init_cal_settings(ah);
566 ah->ani_function = ATH9K_ANI_ALL;
567 if (AR_SREV_9280_20_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah))
568 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
569 if (!AR_SREV_9300_20_OR_LATER(ah))
570 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
572 ath9k_hw_init_mode_regs(ah);
575 if (ah->is_pciexpress)
576 ath9k_hw_configpcipowersave(ah, 0, 0);
578 ath9k_hw_disablepcie(ah);
580 if (!AR_SREV_9300_20_OR_LATER(ah))
581 ar9002_hw_cck_chan14_spread(ah);
583 r = ath9k_hw_post_init(ah);
587 ath9k_hw_init_mode_gain_regs(ah);
588 r = ath9k_hw_fill_cap_info(ah);
592 r = ath9k_hw_init_macaddr(ah);
594 ath_err(common, "Failed to initialize MAC address\n");
598 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
599 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
601 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
603 ah->bb_watchdog_timeout_ms = 25;
605 common->state = ATH_HW_INITIALIZED;
610 int ath9k_hw_init(struct ath_hw *ah)
613 struct ath_common *common = ath9k_hw_common(ah);
615 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
616 switch (ah->hw_version.devid) {
617 case AR5416_DEVID_PCI:
618 case AR5416_DEVID_PCIE:
619 case AR5416_AR9100_DEVID:
620 case AR9160_DEVID_PCI:
621 case AR9280_DEVID_PCI:
622 case AR9280_DEVID_PCIE:
623 case AR9285_DEVID_PCIE:
624 case AR9287_DEVID_PCI:
625 case AR9287_DEVID_PCIE:
626 case AR2427_DEVID_PCIE:
627 case AR9300_DEVID_PCIE:
628 case AR9300_DEVID_AR9485_PCIE:
631 if (common->bus_ops->ath_bus_type == ATH_USB)
633 ath_err(common, "Hardware device ID 0x%04x not supported\n",
634 ah->hw_version.devid);
638 ret = __ath9k_hw_init(ah);
641 "Unable to initialize hardware; initialization status: %d\n",
648 EXPORT_SYMBOL(ath9k_hw_init);
650 static void ath9k_hw_init_qos(struct ath_hw *ah)
652 ENABLE_REGWRITE_BUFFER(ah);
654 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
655 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
657 REG_WRITE(ah, AR_QOS_NO_ACK,
658 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
659 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
660 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
662 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
663 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
664 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
665 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
666 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
668 REGWRITE_BUFFER_FLUSH(ah);
671 unsigned long ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
673 REG_WRITE(ah, PLL3, (REG_READ(ah, PLL3) & ~(PLL3_DO_MEAS_MASK)));
675 REG_WRITE(ah, PLL3, (REG_READ(ah, PLL3) | PLL3_DO_MEAS_MASK));
677 while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0)
680 return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
682 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
684 #define DPLL2_KD_VAL 0x3D
685 #define DPLL2_KI_VAL 0x06
686 #define DPLL3_PHASE_SHIFT_VAL 0x1
688 static void ath9k_hw_init_pll(struct ath_hw *ah,
689 struct ath9k_channel *chan)
693 if (AR_SREV_9485(ah)) {
694 REG_WRITE(ah, AR_RTC_PLL_CONTROL2, 0x886666);
695 REG_WRITE(ah, AR_CH0_DDR_DPLL2, 0x19e82f01);
697 REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3,
698 AR_CH0_DPLL3_PHASE_SHIFT, DPLL3_PHASE_SHIFT_VAL);
700 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
703 REG_WRITE(ah, AR_RTC_PLL_CONTROL2, 0x886666);
705 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
706 AR_CH0_DPLL2_KD, DPLL2_KD_VAL);
707 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
708 AR_CH0_DPLL2_KI, DPLL2_KI_VAL);
710 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
711 AR_CH0_DPLL3_PHASE_SHIFT, DPLL3_PHASE_SHIFT_VAL);
712 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x142c);
716 pll = ath9k_hw_compute_pll_control(ah, chan);
718 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
720 /* Switch the core clock for ar9271 to 117Mhz */
721 if (AR_SREV_9271(ah)) {
723 REG_WRITE(ah, 0x50040, 0x304);
726 udelay(RTC_PLL_SETTLE_DELAY);
728 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
731 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
732 enum nl80211_iftype opmode)
734 u32 imr_reg = AR_IMR_TXERR |
740 if (AR_SREV_9300_20_OR_LATER(ah)) {
741 imr_reg |= AR_IMR_RXOK_HP;
742 if (ah->config.rx_intr_mitigation)
743 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
745 imr_reg |= AR_IMR_RXOK_LP;
748 if (ah->config.rx_intr_mitigation)
749 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
751 imr_reg |= AR_IMR_RXOK;
754 if (ah->config.tx_intr_mitigation)
755 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
757 imr_reg |= AR_IMR_TXOK;
759 if (opmode == NL80211_IFTYPE_AP)
760 imr_reg |= AR_IMR_MIB;
762 ENABLE_REGWRITE_BUFFER(ah);
764 REG_WRITE(ah, AR_IMR, imr_reg);
765 ah->imrs2_reg |= AR_IMR_S2_GTT;
766 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
768 if (!AR_SREV_9100(ah)) {
769 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
770 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
771 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
774 REGWRITE_BUFFER_FLUSH(ah);
776 if (AR_SREV_9300_20_OR_LATER(ah)) {
777 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
778 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
779 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
780 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
784 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
786 u32 val = ath9k_hw_mac_to_clks(ah, us);
787 val = min(val, (u32) 0xFFFF);
788 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
791 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
793 u32 val = ath9k_hw_mac_to_clks(ah, us);
794 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
795 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
798 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
800 u32 val = ath9k_hw_mac_to_clks(ah, us);
801 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
802 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
805 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
808 ath_dbg(ath9k_hw_common(ah), ATH_DBG_XMIT,
809 "bad global tx timeout %u\n", tu);
810 ah->globaltxtimeout = (u32) -1;
813 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
814 ah->globaltxtimeout = tu;
819 void ath9k_hw_init_global_settings(struct ath_hw *ah)
821 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
826 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
829 if (ah->misc_mode != 0)
830 REG_WRITE(ah, AR_PCU_MISC,
831 REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
833 if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ)
838 /* As defined by IEEE 802.11-2007 17.3.8.6 */
839 slottime = ah->slottime + 3 * ah->coverage_class;
840 acktimeout = slottime + sifstime;
843 * Workaround for early ACK timeouts, add an offset to match the
844 * initval's 64us ack timeout value.
845 * This was initially only meant to work around an issue with delayed
846 * BA frames in some implementations, but it has been found to fix ACK
847 * timeout issues in other cases as well.
849 if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
850 acktimeout += 64 - sifstime - ah->slottime;
852 ath9k_hw_setslottime(ah, ah->slottime);
853 ath9k_hw_set_ack_timeout(ah, acktimeout);
854 ath9k_hw_set_cts_timeout(ah, acktimeout);
855 if (ah->globaltxtimeout != (u32) -1)
856 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
858 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
860 void ath9k_hw_deinit(struct ath_hw *ah)
862 struct ath_common *common = ath9k_hw_common(ah);
864 if (common->state < ATH_HW_INITIALIZED)
867 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
870 ath9k_hw_rf_free_ext_banks(ah);
872 EXPORT_SYMBOL(ath9k_hw_deinit);
878 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
880 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
884 else if (IS_CHAN_G(chan))
892 /****************************************/
893 /* Reset and Channel Switching Routines */
894 /****************************************/
896 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
898 struct ath_common *common = ath9k_hw_common(ah);
901 ENABLE_REGWRITE_BUFFER(ah);
904 * set AHB_MODE not to do cacheline prefetches
906 if (!AR_SREV_9300_20_OR_LATER(ah)) {
907 regval = REG_READ(ah, AR_AHB_MODE);
908 REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
912 * let mac dma reads be in 128 byte chunks
914 regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
915 REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
917 REGWRITE_BUFFER_FLUSH(ah);
920 * Restore TX Trigger Level to its pre-reset value.
921 * The initial value depends on whether aggregation is enabled, and is
922 * adjusted whenever underruns are detected.
924 if (!AR_SREV_9300_20_OR_LATER(ah))
925 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
927 ENABLE_REGWRITE_BUFFER(ah);
930 * let mac dma writes be in 128 byte chunks
932 regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
933 REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
936 * Setup receive FIFO threshold to hold off TX activities
938 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
940 if (AR_SREV_9300_20_OR_LATER(ah)) {
941 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
942 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
944 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
945 ah->caps.rx_status_len);
949 * reduce the number of usable entries in PCU TXBUF to avoid
950 * wrap around issues.
952 if (AR_SREV_9285(ah)) {
953 /* For AR9285 the number of Fifos are reduced to half.
954 * So set the usable tx buf size also to half to
955 * avoid data/delimiter underruns
957 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
958 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
959 } else if (!AR_SREV_9271(ah)) {
960 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
961 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
964 REGWRITE_BUFFER_FLUSH(ah);
966 if (AR_SREV_9300_20_OR_LATER(ah))
967 ath9k_hw_reset_txstatus_ring(ah);
970 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
974 val = REG_READ(ah, AR_STA_ID1);
975 val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
977 case NL80211_IFTYPE_AP:
978 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
979 | AR_STA_ID1_KSRCH_MODE);
980 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
982 case NL80211_IFTYPE_ADHOC:
983 case NL80211_IFTYPE_MESH_POINT:
984 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
985 | AR_STA_ID1_KSRCH_MODE);
986 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
988 case NL80211_IFTYPE_STATION:
989 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
992 if (ah->is_monitoring)
993 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
998 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
999 u32 *coef_mantissa, u32 *coef_exponent)
1001 u32 coef_exp, coef_man;
1003 for (coef_exp = 31; coef_exp > 0; coef_exp--)
1004 if ((coef_scaled >> coef_exp) & 0x1)
1007 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1009 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1011 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1012 *coef_exponent = coef_exp - 16;
1015 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1020 if (AR_SREV_9100(ah)) {
1021 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
1022 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
1023 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
1024 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
1025 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1028 ENABLE_REGWRITE_BUFFER(ah);
1030 if (AR_SREV_9300_20_OR_LATER(ah)) {
1031 REG_WRITE(ah, AR_WA, ah->WARegVal);
1035 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1036 AR_RTC_FORCE_WAKE_ON_INT);
1038 if (AR_SREV_9100(ah)) {
1039 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1040 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1042 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1044 (AR_INTR_SYNC_LOCAL_TIMEOUT |
1045 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1047 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1050 if (!AR_SREV_9300_20_OR_LATER(ah))
1052 REG_WRITE(ah, AR_RC, val);
1054 } else if (!AR_SREV_9300_20_OR_LATER(ah))
1055 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1057 rst_flags = AR_RTC_RC_MAC_WARM;
1058 if (type == ATH9K_RESET_COLD)
1059 rst_flags |= AR_RTC_RC_MAC_COLD;
1062 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1064 REGWRITE_BUFFER_FLUSH(ah);
1068 REG_WRITE(ah, AR_RTC_RC, 0);
1069 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1070 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
1071 "RTC stuck in MAC reset\n");
1075 if (!AR_SREV_9100(ah))
1076 REG_WRITE(ah, AR_RC, 0);
1078 if (AR_SREV_9100(ah))
1084 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1086 ENABLE_REGWRITE_BUFFER(ah);
1088 if (AR_SREV_9300_20_OR_LATER(ah)) {
1089 REG_WRITE(ah, AR_WA, ah->WARegVal);
1093 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1094 AR_RTC_FORCE_WAKE_ON_INT);
1096 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1097 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1099 REG_WRITE(ah, AR_RTC_RESET, 0);
1102 REGWRITE_BUFFER_FLUSH(ah);
1104 if (!AR_SREV_9300_20_OR_LATER(ah))
1107 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1108 REG_WRITE(ah, AR_RC, 0);
1110 REG_WRITE(ah, AR_RTC_RESET, 1);
1112 if (!ath9k_hw_wait(ah,
1117 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
1118 "RTC not waking up\n");
1122 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1125 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1127 if (AR_SREV_9300_20_OR_LATER(ah)) {
1128 REG_WRITE(ah, AR_WA, ah->WARegVal);
1132 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1133 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1136 case ATH9K_RESET_POWER_ON:
1137 return ath9k_hw_set_reset_power_on(ah);
1138 case ATH9K_RESET_WARM:
1139 case ATH9K_RESET_COLD:
1140 return ath9k_hw_set_reset(ah, type);
1146 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1147 struct ath9k_channel *chan)
1149 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1150 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1152 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1155 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1158 ah->chip_fullsleep = false;
1159 ath9k_hw_init_pll(ah, chan);
1160 ath9k_hw_set_rfmode(ah, chan);
1165 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1166 struct ath9k_channel *chan)
1168 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1169 struct ath_common *common = ath9k_hw_common(ah);
1170 struct ieee80211_channel *channel = chan->chan;
1174 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1175 if (ath9k_hw_numtxpending(ah, qnum)) {
1176 ath_dbg(common, ATH_DBG_QUEUE,
1177 "Transmit frames pending on queue %d\n", qnum);
1182 if (!ath9k_hw_rfbus_req(ah)) {
1183 ath_err(common, "Could not kill baseband RX\n");
1187 ath9k_hw_set_channel_regs(ah, chan);
1189 r = ath9k_hw_rf_set_freq(ah, chan);
1191 ath_err(common, "Failed to set channel\n");
1194 ath9k_hw_set_clockrate(ah);
1196 ah->eep_ops->set_txpower(ah, chan,
1197 ath9k_regd_get_ctl(regulatory, chan),
1198 channel->max_antenna_gain * 2,
1199 channel->max_power * 2,
1200 min((u32) MAX_RATE_POWER,
1201 (u32) regulatory->power_limit), false);
1203 ath9k_hw_rfbus_done(ah);
1205 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1206 ath9k_hw_set_delta_slope(ah, chan);
1208 ath9k_hw_spur_mitigate_freq(ah, chan);
1213 bool ath9k_hw_check_alive(struct ath_hw *ah)
1218 if (AR_SREV_9285_12_OR_LATER(ah))
1222 reg = REG_READ(ah, AR_OBS_BUS_1);
1224 if ((reg & 0x7E7FFFEF) == 0x00702400)
1227 switch (reg & 0x7E000B00) {
1235 } while (count-- > 0);
1239 EXPORT_SYMBOL(ath9k_hw_check_alive);
1241 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1242 struct ath9k_hw_cal_data *caldata, bool bChannelChange)
1244 struct ath_common *common = ath9k_hw_common(ah);
1246 struct ath9k_channel *curchan = ah->curchan;
1252 ah->txchainmask = common->tx_chainmask;
1253 ah->rxchainmask = common->rx_chainmask;
1255 if ((common->bus_ops->ath_bus_type != ATH_USB) && !ah->chip_fullsleep) {
1256 ath9k_hw_abortpcurecv(ah);
1257 if (!ath9k_hw_stopdmarecv(ah)) {
1258 ath_dbg(common, ATH_DBG_XMIT,
1259 "Failed to stop receive dma\n");
1260 bChannelChange = false;
1264 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1267 if (curchan && !ah->chip_fullsleep)
1268 ath9k_hw_getnf(ah, curchan);
1270 ah->caldata = caldata;
1272 (chan->channel != caldata->channel ||
1273 (chan->channelFlags & ~CHANNEL_CW_INT) !=
1274 (caldata->channelFlags & ~CHANNEL_CW_INT))) {
1275 /* Operating channel changed, reset channel calibration data */
1276 memset(caldata, 0, sizeof(*caldata));
1277 ath9k_init_nfcal_hist_buffer(ah, chan);
1280 if (bChannelChange &&
1281 (ah->chip_fullsleep != true) &&
1282 (ah->curchan != NULL) &&
1283 (chan->channel != ah->curchan->channel) &&
1284 ((chan->channelFlags & CHANNEL_ALL) ==
1285 (ah->curchan->channelFlags & CHANNEL_ALL)) &&
1286 (!AR_SREV_9280(ah) || AR_DEVID_7010(ah))) {
1288 if (ath9k_hw_channel_change(ah, chan)) {
1289 ath9k_hw_loadnf(ah, ah->curchan);
1290 ath9k_hw_start_nfcal(ah, true);
1291 if (AR_SREV_9271(ah))
1292 ar9002_hw_load_ani_reg(ah, chan);
1297 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1298 if (saveDefAntenna == 0)
1301 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1303 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1304 if (AR_SREV_9100(ah) ||
1305 (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)))
1306 tsf = ath9k_hw_gettsf64(ah);
1308 saveLedState = REG_READ(ah, AR_CFG_LED) &
1309 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1310 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1312 ath9k_hw_mark_phy_inactive(ah);
1314 ah->paprd_table_write_done = false;
1316 /* Only required on the first reset */
1317 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1319 AR9271_RESET_POWER_DOWN_CONTROL,
1320 AR9271_RADIO_RF_RST);
1324 if (!ath9k_hw_chip_reset(ah, chan)) {
1325 ath_err(common, "Chip reset failed\n");
1329 /* Only required on the first reset */
1330 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1331 ah->htc_reset_init = false;
1333 AR9271_RESET_POWER_DOWN_CONTROL,
1334 AR9271_GATE_MAC_CTL);
1340 ath9k_hw_settsf64(ah, tsf);
1342 if (AR_SREV_9280_20_OR_LATER(ah))
1343 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1345 if (!AR_SREV_9300_20_OR_LATER(ah))
1346 ar9002_hw_enable_async_fifo(ah);
1348 r = ath9k_hw_process_ini(ah, chan);
1353 * Some AR91xx SoC devices frequently fail to accept TSF writes
1354 * right after the chip reset. When that happens, write a new
1355 * value after the initvals have been applied, with an offset
1356 * based on measured time difference
1358 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1360 ath9k_hw_settsf64(ah, tsf);
1363 /* Setup MFP options for CCMP */
1364 if (AR_SREV_9280_20_OR_LATER(ah)) {
1365 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1366 * frames when constructing CCMP AAD. */
1367 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1369 ah->sw_mgmt_crypto = false;
1370 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1371 /* Disable hardware crypto for management frames */
1372 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1373 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1374 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1375 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1376 ah->sw_mgmt_crypto = true;
1378 ah->sw_mgmt_crypto = true;
1380 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1381 ath9k_hw_set_delta_slope(ah, chan);
1383 ath9k_hw_spur_mitigate_freq(ah, chan);
1384 ah->eep_ops->set_board_values(ah, chan);
1386 ENABLE_REGWRITE_BUFFER(ah);
1388 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1389 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
1391 | AR_STA_ID1_RTS_USE_DEF
1393 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1394 | ah->sta_id1_defaults);
1395 ath_hw_setbssidmask(common);
1396 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1397 ath9k_hw_write_associd(ah);
1398 REG_WRITE(ah, AR_ISR, ~0);
1399 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1401 REGWRITE_BUFFER_FLUSH(ah);
1403 ath9k_hw_set_operating_mode(ah, ah->opmode);
1405 r = ath9k_hw_rf_set_freq(ah, chan);
1409 ath9k_hw_set_clockrate(ah);
1411 ENABLE_REGWRITE_BUFFER(ah);
1413 for (i = 0; i < AR_NUM_DCU; i++)
1414 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1416 REGWRITE_BUFFER_FLUSH(ah);
1419 for (i = 0; i < ah->caps.total_queues; i++)
1420 ath9k_hw_resettxqueue(ah, i);
1422 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1423 ath9k_hw_ani_cache_ini_regs(ah);
1424 ath9k_hw_init_qos(ah);
1426 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1427 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
1429 ath9k_hw_init_global_settings(ah);
1431 if (!AR_SREV_9300_20_OR_LATER(ah)) {
1432 ar9002_hw_update_async_fifo(ah);
1433 ar9002_hw_enable_wep_aggregation(ah);
1436 REG_WRITE(ah, AR_STA_ID1,
1437 REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
1439 ath9k_hw_set_dma(ah);
1441 REG_WRITE(ah, AR_OBS, 8);
1443 if (ah->config.rx_intr_mitigation) {
1444 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
1445 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
1448 if (ah->config.tx_intr_mitigation) {
1449 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1450 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1453 ath9k_hw_init_bb(ah, chan);
1455 if (!ath9k_hw_init_cal(ah, chan))
1458 ENABLE_REGWRITE_BUFFER(ah);
1460 ath9k_hw_restore_chainmask(ah);
1461 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1463 REGWRITE_BUFFER_FLUSH(ah);
1466 * For big endian systems turn on swapping for descriptors
1468 if (AR_SREV_9100(ah)) {
1470 mask = REG_READ(ah, AR_CFG);
1471 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1472 ath_dbg(common, ATH_DBG_RESET,
1473 "CFG Byte Swap Set 0x%x\n", mask);
1476 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1477 REG_WRITE(ah, AR_CFG, mask);
1478 ath_dbg(common, ATH_DBG_RESET,
1479 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
1482 if (common->bus_ops->ath_bus_type == ATH_USB) {
1483 /* Configure AR9271 target WLAN */
1484 if (AR_SREV_9271(ah))
1485 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1487 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1491 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1495 if (ah->btcoex_hw.enabled)
1496 ath9k_hw_btcoex_enable(ah);
1498 if (AR_SREV_9300_20_OR_LATER(ah))
1499 ar9003_hw_bb_watchdog_config(ah);
1503 EXPORT_SYMBOL(ath9k_hw_reset);
1505 /******************************/
1506 /* Power Management (Chipset) */
1507 /******************************/
1510 * Notify Power Mgt is disabled in self-generated frames.
1511 * If requested, force chip to sleep.
1513 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
1515 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1518 * Clear the RTC force wake bit to allow the
1519 * mac to go to sleep.
1521 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1522 AR_RTC_FORCE_WAKE_EN);
1523 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1524 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1526 /* Shutdown chip. Active low */
1527 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah))
1528 REG_CLR_BIT(ah, (AR_RTC_RESET),
1532 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
1533 if (AR_SREV_9300_20_OR_LATER(ah))
1534 REG_WRITE(ah, AR_WA,
1535 ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1539 * Notify Power Management is enabled in self-generating
1540 * frames. If request, set power mode of chip to
1541 * auto/normal. Duration in units of 128us (1/8 TU).
1543 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
1545 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1547 struct ath9k_hw_capabilities *pCap = &ah->caps;
1549 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1550 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1551 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1552 AR_RTC_FORCE_WAKE_ON_INT);
1555 * Clear the RTC force wake bit to allow the
1556 * mac to go to sleep.
1558 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1559 AR_RTC_FORCE_WAKE_EN);
1563 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
1564 if (AR_SREV_9300_20_OR_LATER(ah))
1565 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1568 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
1573 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
1574 if (AR_SREV_9300_20_OR_LATER(ah)) {
1575 REG_WRITE(ah, AR_WA, ah->WARegVal);
1580 if ((REG_READ(ah, AR_RTC_STATUS) &
1581 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1582 if (ath9k_hw_set_reset_reg(ah,
1583 ATH9K_RESET_POWER_ON) != true) {
1586 if (!AR_SREV_9300_20_OR_LATER(ah))
1587 ath9k_hw_init_pll(ah, NULL);
1589 if (AR_SREV_9100(ah))
1590 REG_SET_BIT(ah, AR_RTC_RESET,
1593 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1594 AR_RTC_FORCE_WAKE_EN);
1597 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1598 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1599 if (val == AR_RTC_STATUS_ON)
1602 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1603 AR_RTC_FORCE_WAKE_EN);
1606 ath_err(ath9k_hw_common(ah),
1607 "Failed to wakeup in %uus\n",
1608 POWER_UP_TIME / 20);
1613 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1618 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
1620 struct ath_common *common = ath9k_hw_common(ah);
1621 int status = true, setChip = true;
1622 static const char *modes[] = {
1629 if (ah->power_mode == mode)
1632 ath_dbg(common, ATH_DBG_RESET, "%s -> %s\n",
1633 modes[ah->power_mode], modes[mode]);
1636 case ATH9K_PM_AWAKE:
1637 status = ath9k_hw_set_power_awake(ah, setChip);
1639 case ATH9K_PM_FULL_SLEEP:
1640 ath9k_set_power_sleep(ah, setChip);
1641 ah->chip_fullsleep = true;
1643 case ATH9K_PM_NETWORK_SLEEP:
1644 ath9k_set_power_network_sleep(ah, setChip);
1647 ath_err(common, "Unknown power mode %u\n", mode);
1650 ah->power_mode = mode;
1653 * XXX: If this warning never comes up after a while then
1654 * simply keep the ATH_DBG_WARN_ON_ONCE() but make
1655 * ath9k_hw_setpower() return type void.
1658 if (!(ah->ah_flags & AH_UNPLUGGED))
1659 ATH_DBG_WARN_ON_ONCE(!status);
1663 EXPORT_SYMBOL(ath9k_hw_setpower);
1665 /*******************/
1666 /* Beacon Handling */
1667 /*******************/
1669 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
1673 ENABLE_REGWRITE_BUFFER(ah);
1675 switch (ah->opmode) {
1676 case NL80211_IFTYPE_ADHOC:
1677 case NL80211_IFTYPE_MESH_POINT:
1678 REG_SET_BIT(ah, AR_TXCFG,
1679 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
1680 REG_WRITE(ah, AR_NEXT_NDP_TIMER,
1681 TU_TO_USEC(next_beacon +
1682 (ah->atim_window ? ah->
1684 flags |= AR_NDP_TIMER_EN;
1685 case NL80211_IFTYPE_AP:
1686 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1687 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT,
1688 TU_TO_USEC(next_beacon -
1690 dma_beacon_response_time));
1691 REG_WRITE(ah, AR_NEXT_SWBA,
1692 TU_TO_USEC(next_beacon -
1694 sw_beacon_response_time));
1696 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
1699 ath_dbg(ath9k_hw_common(ah), ATH_DBG_BEACON,
1700 "%s: unsupported opmode: %d\n",
1701 __func__, ah->opmode);
1706 REG_WRITE(ah, AR_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1707 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1708 REG_WRITE(ah, AR_SWBA_PERIOD, TU_TO_USEC(beacon_period));
1709 REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
1711 REGWRITE_BUFFER_FLUSH(ah);
1713 beacon_period &= ~ATH9K_BEACON_ENA;
1714 if (beacon_period & ATH9K_BEACON_RESET_TSF) {
1715 ath9k_hw_reset_tsf(ah);
1718 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
1720 EXPORT_SYMBOL(ath9k_hw_beaconinit);
1722 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
1723 const struct ath9k_beacon_state *bs)
1725 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
1726 struct ath9k_hw_capabilities *pCap = &ah->caps;
1727 struct ath_common *common = ath9k_hw_common(ah);
1729 ENABLE_REGWRITE_BUFFER(ah);
1731 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
1733 REG_WRITE(ah, AR_BEACON_PERIOD,
1734 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1735 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
1736 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1738 REGWRITE_BUFFER_FLUSH(ah);
1740 REG_RMW_FIELD(ah, AR_RSSI_THR,
1741 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
1743 beaconintval = bs->bs_intval & ATH9K_BEACON_PERIOD;
1745 if (bs->bs_sleepduration > beaconintval)
1746 beaconintval = bs->bs_sleepduration;
1748 dtimperiod = bs->bs_dtimperiod;
1749 if (bs->bs_sleepduration > dtimperiod)
1750 dtimperiod = bs->bs_sleepduration;
1752 if (beaconintval == dtimperiod)
1753 nextTbtt = bs->bs_nextdtim;
1755 nextTbtt = bs->bs_nexttbtt;
1757 ath_dbg(common, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
1758 ath_dbg(common, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
1759 ath_dbg(common, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
1760 ath_dbg(common, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
1762 ENABLE_REGWRITE_BUFFER(ah);
1764 REG_WRITE(ah, AR_NEXT_DTIM,
1765 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
1766 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
1768 REG_WRITE(ah, AR_SLEEP1,
1769 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
1770 | AR_SLEEP1_ASSUME_DTIM);
1772 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
1773 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
1775 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
1777 REG_WRITE(ah, AR_SLEEP2,
1778 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
1780 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
1781 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
1783 REGWRITE_BUFFER_FLUSH(ah);
1785 REG_SET_BIT(ah, AR_TIMER_MODE,
1786 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
1789 /* TSF Out of Range Threshold */
1790 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
1792 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
1794 /*******************/
1795 /* HW Capabilities */
1796 /*******************/
1798 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
1800 struct ath9k_hw_capabilities *pCap = &ah->caps;
1801 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1802 struct ath_common *common = ath9k_hw_common(ah);
1803 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
1805 u16 capField = 0, eeval;
1806 u8 ant_div_ctl1, tx_chainmask, rx_chainmask;
1808 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
1809 regulatory->current_rd = eeval;
1811 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_1);
1812 if (AR_SREV_9285_12_OR_LATER(ah))
1813 eeval |= AR9285_RDEXT_DEFAULT;
1814 regulatory->current_rd_ext = eeval;
1816 capField = ah->eep_ops->get_eeprom(ah, EEP_OP_CAP);
1818 if (ah->opmode != NL80211_IFTYPE_AP &&
1819 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
1820 if (regulatory->current_rd == 0x64 ||
1821 regulatory->current_rd == 0x65)
1822 regulatory->current_rd += 5;
1823 else if (regulatory->current_rd == 0x41)
1824 regulatory->current_rd = 0x43;
1825 ath_dbg(common, ATH_DBG_REGULATORY,
1826 "regdomain mapped to 0x%x\n", regulatory->current_rd);
1829 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
1830 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
1832 "no band has been marked as supported in EEPROM\n");
1836 if (eeval & AR5416_OPFLAGS_11A)
1837 pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
1839 if (eeval & AR5416_OPFLAGS_11G)
1840 pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
1842 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
1844 * For AR9271 we will temporarilly uses the rx chainmax as read from
1847 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
1848 !(eeval & AR5416_OPFLAGS_11A) &&
1849 !(AR_SREV_9271(ah)))
1850 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
1851 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
1853 /* Use rx_chainmask from EEPROM. */
1854 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
1856 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
1858 /* enable key search for every frame in an aggregate */
1859 if (AR_SREV_9300_20_OR_LATER(ah))
1860 ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
1862 pCap->low_2ghz_chan = 2312;
1863 pCap->high_2ghz_chan = 2732;
1865 pCap->low_5ghz_chan = 4920;
1866 pCap->high_5ghz_chan = 6100;
1868 common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
1870 if (ah->config.ht_enable)
1871 pCap->hw_caps |= ATH9K_HW_CAP_HT;
1873 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
1875 if (capField & AR_EEPROM_EEPCAP_MAXQCU)
1876 pCap->total_queues =
1877 MS(capField, AR_EEPROM_EEPCAP_MAXQCU);
1879 pCap->total_queues = ATH9K_NUM_TX_QUEUES;
1881 if (capField & AR_EEPROM_EEPCAP_KC_ENTRIES)
1882 pCap->keycache_size =
1883 1 << MS(capField, AR_EEPROM_EEPCAP_KC_ENTRIES);
1885 pCap->keycache_size = AR_KEYTABLE_SIZE;
1887 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
1888 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD >> 1;
1890 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD;
1892 if (AR_SREV_9271(ah))
1893 pCap->num_gpio_pins = AR9271_NUM_GPIO;
1894 else if (AR_DEVID_7010(ah))
1895 pCap->num_gpio_pins = AR7010_NUM_GPIO;
1896 else if (AR_SREV_9285_12_OR_LATER(ah))
1897 pCap->num_gpio_pins = AR9285_NUM_GPIO;
1898 else if (AR_SREV_9280_20_OR_LATER(ah))
1899 pCap->num_gpio_pins = AR928X_NUM_GPIO;
1901 pCap->num_gpio_pins = AR_NUM_GPIO;
1903 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
1904 pCap->hw_caps |= ATH9K_HW_CAP_CST;
1905 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
1907 pCap->rts_aggr_limit = (8 * 1024);
1910 pCap->hw_caps |= ATH9K_HW_CAP_ENHANCEDPM;
1912 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
1913 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
1914 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
1916 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
1917 ah->rfkill_polarity =
1918 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
1920 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
1923 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
1924 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
1926 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
1928 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
1929 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
1931 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
1933 if (regulatory->current_rd_ext & (1 << REG_EXT_JAPAN_MIDBAND)) {
1935 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
1936 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN |
1937 AR_EEPROM_EEREGCAP_EN_KK_U2 |
1938 AR_EEPROM_EEREGCAP_EN_KK_MIDBAND;
1941 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
1942 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN;
1945 /* Advertise midband for AR5416 with FCC midband set in eeprom */
1946 if (regulatory->current_rd_ext & (1 << REG_EXT_FCC_MIDBAND) &&
1948 pCap->reg_cap |= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND;
1950 if (AR_SREV_9280_20_OR_LATER(ah) && common->btcoex_enabled) {
1951 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
1952 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
1954 if (AR_SREV_9285(ah)) {
1955 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
1956 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
1958 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
1961 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
1964 if (AR_SREV_9300_20_OR_LATER(ah)) {
1965 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
1966 if (!AR_SREV_9485(ah))
1967 pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
1969 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
1970 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
1971 pCap->rx_status_len = sizeof(struct ar9003_rxs);
1972 pCap->tx_desc_len = sizeof(struct ar9003_txc);
1973 pCap->txs_len = sizeof(struct ar9003_txs);
1974 if (ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
1975 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
1977 pCap->tx_desc_len = sizeof(struct ath_desc);
1978 if (AR_SREV_9280_20(ah) &&
1979 ((ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) <=
1980 AR5416_EEP_MINOR_VER_16) ||
1981 ah->eep_ops->get_eeprom(ah, EEP_FSTCLK_5G)))
1982 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
1985 if (AR_SREV_9300_20_OR_LATER(ah))
1986 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
1988 if (AR_SREV_9300_20_OR_LATER(ah))
1989 ah->ent_mode = REG_READ(ah, AR_ENT_OTP);
1991 if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah))
1992 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
1994 if (AR_SREV_9285(ah))
1995 if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) {
1997 ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
1998 if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1))
1999 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2001 if (AR_SREV_9300_20_OR_LATER(ah)) {
2002 if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
2003 pCap->hw_caps |= ATH9K_HW_CAP_APM;
2008 if (AR_SREV_9485_10(ah)) {
2009 pCap->pcie_lcr_extsync_en = true;
2010 pCap->pcie_lcr_offset = 0x80;
2013 tx_chainmask = pCap->tx_chainmask;
2014 rx_chainmask = pCap->rx_chainmask;
2015 while (tx_chainmask || rx_chainmask) {
2016 if (tx_chainmask & BIT(0))
2017 pCap->max_txchains++;
2018 if (rx_chainmask & BIT(0))
2019 pCap->max_rxchains++;
2028 /****************************/
2029 /* GPIO / RFKILL / Antennae */
2030 /****************************/
2032 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2036 u32 gpio_shift, tmp;
2039 addr = AR_GPIO_OUTPUT_MUX3;
2041 addr = AR_GPIO_OUTPUT_MUX2;
2043 addr = AR_GPIO_OUTPUT_MUX1;
2045 gpio_shift = (gpio % 6) * 5;
2047 if (AR_SREV_9280_20_OR_LATER(ah)
2048 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2049 REG_RMW(ah, addr, (type << gpio_shift),
2050 (0x1f << gpio_shift));
2052 tmp = REG_READ(ah, addr);
2053 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2054 tmp &= ~(0x1f << gpio_shift);
2055 tmp |= (type << gpio_shift);
2056 REG_WRITE(ah, addr, tmp);
2060 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2064 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2066 if (AR_DEVID_7010(ah)) {
2068 REG_RMW(ah, AR7010_GPIO_OE,
2069 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2070 (AR7010_GPIO_OE_MASK << gpio_shift));
2074 gpio_shift = gpio << 1;
2077 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2078 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2080 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2082 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2084 #define MS_REG_READ(x, y) \
2085 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2087 if (gpio >= ah->caps.num_gpio_pins)
2090 if (AR_DEVID_7010(ah)) {
2092 val = REG_READ(ah, AR7010_GPIO_IN);
2093 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2094 } else if (AR_SREV_9300_20_OR_LATER(ah))
2095 return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
2096 AR_GPIO_BIT(gpio)) != 0;
2097 else if (AR_SREV_9271(ah))
2098 return MS_REG_READ(AR9271, gpio) != 0;
2099 else if (AR_SREV_9287_11_OR_LATER(ah))
2100 return MS_REG_READ(AR9287, gpio) != 0;
2101 else if (AR_SREV_9285_12_OR_LATER(ah))
2102 return MS_REG_READ(AR9285, gpio) != 0;
2103 else if (AR_SREV_9280_20_OR_LATER(ah))
2104 return MS_REG_READ(AR928X, gpio) != 0;
2106 return MS_REG_READ(AR, gpio) != 0;
2108 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2110 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2115 if (AR_DEVID_7010(ah)) {
2117 REG_RMW(ah, AR7010_GPIO_OE,
2118 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2119 (AR7010_GPIO_OE_MASK << gpio_shift));
2123 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2124 gpio_shift = 2 * gpio;
2127 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2128 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2130 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2132 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2134 if (AR_DEVID_7010(ah)) {
2136 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2141 if (AR_SREV_9271(ah))
2144 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2147 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2149 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
2151 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
2153 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
2155 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2157 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2159 EXPORT_SYMBOL(ath9k_hw_setantenna);
2161 /*********************/
2162 /* General Operation */
2163 /*********************/
2165 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2167 u32 bits = REG_READ(ah, AR_RX_FILTER);
2168 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2170 if (phybits & AR_PHY_ERR_RADAR)
2171 bits |= ATH9K_RX_FILTER_PHYRADAR;
2172 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2173 bits |= ATH9K_RX_FILTER_PHYERR;
2177 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2179 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2183 ENABLE_REGWRITE_BUFFER(ah);
2185 REG_WRITE(ah, AR_RX_FILTER, bits);
2188 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2189 phybits |= AR_PHY_ERR_RADAR;
2190 if (bits & ATH9K_RX_FILTER_PHYERR)
2191 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2192 REG_WRITE(ah, AR_PHY_ERR, phybits);
2195 REG_WRITE(ah, AR_RXCFG,
2196 REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
2198 REG_WRITE(ah, AR_RXCFG,
2199 REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
2201 REGWRITE_BUFFER_FLUSH(ah);
2203 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2205 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2207 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2210 ath9k_hw_init_pll(ah, NULL);
2213 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2215 bool ath9k_hw_disable(struct ath_hw *ah)
2217 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2220 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2223 ath9k_hw_init_pll(ah, NULL);
2226 EXPORT_SYMBOL(ath9k_hw_disable);
2228 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
2230 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2231 struct ath9k_channel *chan = ah->curchan;
2232 struct ieee80211_channel *channel = chan->chan;
2234 regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
2236 ah->eep_ops->set_txpower(ah, chan,
2237 ath9k_regd_get_ctl(regulatory, chan),
2238 channel->max_antenna_gain * 2,
2239 channel->max_power * 2,
2240 min((u32) MAX_RATE_POWER,
2241 (u32) regulatory->power_limit), test);
2243 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2245 void ath9k_hw_setopmode(struct ath_hw *ah)
2247 ath9k_hw_set_operating_mode(ah, ah->opmode);
2249 EXPORT_SYMBOL(ath9k_hw_setopmode);
2251 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2253 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2254 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2256 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2258 void ath9k_hw_write_associd(struct ath_hw *ah)
2260 struct ath_common *common = ath9k_hw_common(ah);
2262 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2263 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2264 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2266 EXPORT_SYMBOL(ath9k_hw_write_associd);
2268 #define ATH9K_MAX_TSF_READ 10
2270 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2272 u32 tsf_lower, tsf_upper1, tsf_upper2;
2275 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2276 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2277 tsf_lower = REG_READ(ah, AR_TSF_L32);
2278 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2279 if (tsf_upper2 == tsf_upper1)
2281 tsf_upper1 = tsf_upper2;
2284 WARN_ON( i == ATH9K_MAX_TSF_READ );
2286 return (((u64)tsf_upper1 << 32) | tsf_lower);
2288 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2290 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2292 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2293 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2295 EXPORT_SYMBOL(ath9k_hw_settsf64);
2297 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2299 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2300 AH_TSF_WRITE_TIMEOUT))
2301 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
2302 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2304 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2306 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2308 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
2311 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2313 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2315 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2317 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2319 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2322 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2323 macmode = AR_2040_JOINED_RX_CLEAR;
2327 REG_WRITE(ah, AR_2040_MODE, macmode);
2330 /* HW Generic timers configuration */
2332 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2334 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2335 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2336 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2337 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2338 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2339 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2340 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2341 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2342 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2343 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2344 AR_NDP2_TIMER_MODE, 0x0002},
2345 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2346 AR_NDP2_TIMER_MODE, 0x0004},
2347 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2348 AR_NDP2_TIMER_MODE, 0x0008},
2349 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2350 AR_NDP2_TIMER_MODE, 0x0010},
2351 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2352 AR_NDP2_TIMER_MODE, 0x0020},
2353 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2354 AR_NDP2_TIMER_MODE, 0x0040},
2355 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2356 AR_NDP2_TIMER_MODE, 0x0080}
2359 /* HW generic timer primitives */
2361 /* compute and clear index of rightmost 1 */
2362 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2372 return timer_table->gen_timer_index[b];
2375 static u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2377 return REG_READ(ah, AR_TSF_L32);
2380 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2381 void (*trigger)(void *),
2382 void (*overflow)(void *),
2386 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2387 struct ath_gen_timer *timer;
2389 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2391 if (timer == NULL) {
2392 ath_err(ath9k_hw_common(ah),
2393 "Failed to allocate memory for hw timer[%d]\n",
2398 /* allocate a hardware generic timer slot */
2399 timer_table->timers[timer_index] = timer;
2400 timer->index = timer_index;
2401 timer->trigger = trigger;
2402 timer->overflow = overflow;
2407 EXPORT_SYMBOL(ath_gen_timer_alloc);
2409 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2410 struct ath_gen_timer *timer,
2414 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2417 BUG_ON(!timer_period);
2419 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2421 tsf = ath9k_hw_gettsf32(ah);
2423 ath_dbg(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
2424 "current tsf %x period %x timer_next %x\n",
2425 tsf, timer_period, timer_next);
2428 * Pull timer_next forward if the current TSF already passed it
2429 * because of software latency
2431 if (timer_next < tsf)
2432 timer_next = tsf + timer_period;
2435 * Program generic timer registers
2437 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2439 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2441 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2442 gen_tmr_configuration[timer->index].mode_mask);
2444 /* Enable both trigger and thresh interrupt masks */
2445 REG_SET_BIT(ah, AR_IMR_S5,
2446 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2447 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2449 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2451 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2453 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2455 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2456 (timer->index >= ATH_MAX_GEN_TIMER)) {
2460 /* Clear generic timer enable bits. */
2461 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2462 gen_tmr_configuration[timer->index].mode_mask);
2464 /* Disable both trigger and thresh interrupt masks */
2465 REG_CLR_BIT(ah, AR_IMR_S5,
2466 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2467 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2469 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
2471 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
2473 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2475 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2477 /* free the hardware generic timer slot */
2478 timer_table->timers[timer->index] = NULL;
2481 EXPORT_SYMBOL(ath_gen_timer_free);
2484 * Generic Timer Interrupts handling
2486 void ath_gen_timer_isr(struct ath_hw *ah)
2488 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2489 struct ath_gen_timer *timer;
2490 struct ath_common *common = ath9k_hw_common(ah);
2491 u32 trigger_mask, thresh_mask, index;
2493 /* get hardware generic timer interrupt status */
2494 trigger_mask = ah->intr_gen_timer_trigger;
2495 thresh_mask = ah->intr_gen_timer_thresh;
2496 trigger_mask &= timer_table->timer_mask.val;
2497 thresh_mask &= timer_table->timer_mask.val;
2499 trigger_mask &= ~thresh_mask;
2501 while (thresh_mask) {
2502 index = rightmost_index(timer_table, &thresh_mask);
2503 timer = timer_table->timers[index];
2505 ath_dbg(common, ATH_DBG_HWTIMER,
2506 "TSF overflow for Gen timer %d\n", index);
2507 timer->overflow(timer->arg);
2510 while (trigger_mask) {
2511 index = rightmost_index(timer_table, &trigger_mask);
2512 timer = timer_table->timers[index];
2514 ath_dbg(common, ATH_DBG_HWTIMER,
2515 "Gen timer[%d] trigger\n", index);
2516 timer->trigger(timer->arg);
2519 EXPORT_SYMBOL(ath_gen_timer_isr);
2525 void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2527 ah->htc_reset_init = true;
2529 EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2534 } ath_mac_bb_names[] = {
2535 /* Devices with external radios */
2536 { AR_SREV_VERSION_5416_PCI, "5416" },
2537 { AR_SREV_VERSION_5416_PCIE, "5418" },
2538 { AR_SREV_VERSION_9100, "9100" },
2539 { AR_SREV_VERSION_9160, "9160" },
2540 /* Single-chip solutions */
2541 { AR_SREV_VERSION_9280, "9280" },
2542 { AR_SREV_VERSION_9285, "9285" },
2543 { AR_SREV_VERSION_9287, "9287" },
2544 { AR_SREV_VERSION_9271, "9271" },
2545 { AR_SREV_VERSION_9300, "9300" },
2548 /* For devices with external radios */
2552 } ath_rf_names[] = {
2554 { AR_RAD5133_SREV_MAJOR, "5133" },
2555 { AR_RAD5122_SREV_MAJOR, "5122" },
2556 { AR_RAD2133_SREV_MAJOR, "2133" },
2557 { AR_RAD2122_SREV_MAJOR, "2122" }
2561 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2563 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2567 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
2568 if (ath_mac_bb_names[i].version == mac_bb_version) {
2569 return ath_mac_bb_names[i].name;
2577 * Return the RF name. "????" is returned if the RF is unknown.
2578 * Used for devices with external radios.
2580 static const char *ath9k_hw_rf_name(u16 rf_version)
2584 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
2585 if (ath_rf_names[i].version == rf_version) {
2586 return ath_rf_names[i].name;
2593 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
2597 /* chipsets >= AR9280 are single-chip */
2598 if (AR_SREV_9280_20_OR_LATER(ah)) {
2599 used = snprintf(hw_name, len,
2600 "Atheros AR%s Rev:%x",
2601 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2602 ah->hw_version.macRev);
2605 used = snprintf(hw_name, len,
2606 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2607 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2608 ah->hw_version.macRev,
2609 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
2610 AR_RADIO_SREV_MAJOR)),
2611 ah->hw_version.phyRev);
2614 hw_name[used] = '\0';
2616 EXPORT_SYMBOL(ath9k_hw_name);