2 * Copyright (c) 2008-2010 Atheros Communications Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #include <linux/slab.h>
19 #include <asm/unaligned.h>
24 #include "ar9003_mac.h"
26 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
28 MODULE_AUTHOR("Atheros Communications");
29 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
30 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
31 MODULE_LICENSE("Dual BSD/GPL");
33 static int __init ath9k_init(void)
37 module_init(ath9k_init);
39 static void __exit ath9k_exit(void)
43 module_exit(ath9k_exit);
45 /* Private hardware callbacks */
47 static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
49 ath9k_hw_private_ops(ah)->init_cal_settings(ah);
52 static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
54 ath9k_hw_private_ops(ah)->init_mode_regs(ah);
57 static u32 ath9k_hw_compute_pll_control(struct ath_hw *ah,
58 struct ath9k_channel *chan)
60 return ath9k_hw_private_ops(ah)->compute_pll_control(ah, chan);
63 static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
65 if (!ath9k_hw_private_ops(ah)->init_mode_gain_regs)
68 ath9k_hw_private_ops(ah)->init_mode_gain_regs(ah);
71 static void ath9k_hw_ani_cache_ini_regs(struct ath_hw *ah)
73 /* You will not have this callback if using the old ANI */
74 if (!ath9k_hw_private_ops(ah)->ani_cache_ini_regs)
77 ath9k_hw_private_ops(ah)->ani_cache_ini_regs(ah);
80 /********************/
81 /* Helper Functions */
82 /********************/
84 static void ath9k_hw_set_clockrate(struct ath_hw *ah)
86 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
87 struct ath_common *common = ath9k_hw_common(ah);
88 unsigned int clockrate;
90 if (!ah->curchan) /* should really check for CCK instead */
91 clockrate = ATH9K_CLOCK_RATE_CCK;
92 else if (conf->channel->band == IEEE80211_BAND_2GHZ)
93 clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
94 else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
95 clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
97 clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
99 if (conf_is_ht40(conf))
102 common->clockrate = clockrate;
105 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
107 struct ath_common *common = ath9k_hw_common(ah);
109 return usecs * common->clockrate;
112 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
116 BUG_ON(timeout < AH_TIME_QUANTUM);
118 for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
119 if ((REG_READ(ah, reg) & mask) == val)
122 udelay(AH_TIME_QUANTUM);
125 ath_dbg(ath9k_hw_common(ah), ATH_DBG_ANY,
126 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
127 timeout, reg, REG_READ(ah, reg), mask, val);
131 EXPORT_SYMBOL(ath9k_hw_wait);
133 void ath9k_hw_write_array(struct ath_hw *ah, struct ar5416IniArray *array,
134 int column, unsigned int *writecnt)
138 ENABLE_REGWRITE_BUFFER(ah);
139 for (r = 0; r < array->ia_rows; r++) {
140 REG_WRITE(ah, INI_RA(array, r, 0),
141 INI_RA(array, r, column));
144 REGWRITE_BUFFER_FLUSH(ah);
147 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
152 for (i = 0, retval = 0; i < n; i++) {
153 retval = (retval << 1) | (val & 1);
159 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
161 u32 frameLen, u16 rateix,
164 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
170 case WLAN_RC_PHY_CCK:
171 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
174 numBits = frameLen << 3;
175 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
177 case WLAN_RC_PHY_OFDM:
178 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
179 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
180 numBits = OFDM_PLCP_BITS + (frameLen << 3);
181 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
182 txTime = OFDM_SIFS_TIME_QUARTER
183 + OFDM_PREAMBLE_TIME_QUARTER
184 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
185 } else if (ah->curchan &&
186 IS_CHAN_HALF_RATE(ah->curchan)) {
187 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
188 numBits = OFDM_PLCP_BITS + (frameLen << 3);
189 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
190 txTime = OFDM_SIFS_TIME_HALF +
191 OFDM_PREAMBLE_TIME_HALF
192 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
194 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
195 numBits = OFDM_PLCP_BITS + (frameLen << 3);
196 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
197 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
198 + (numSymbols * OFDM_SYMBOL_TIME);
202 ath_err(ath9k_hw_common(ah),
203 "Unknown phy %u (rate ix %u)\n", phy, rateix);
210 EXPORT_SYMBOL(ath9k_hw_computetxtime);
212 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
213 struct ath9k_channel *chan,
214 struct chan_centers *centers)
218 if (!IS_CHAN_HT40(chan)) {
219 centers->ctl_center = centers->ext_center =
220 centers->synth_center = chan->channel;
224 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
225 (chan->chanmode == CHANNEL_G_HT40PLUS)) {
226 centers->synth_center =
227 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
230 centers->synth_center =
231 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
235 centers->ctl_center =
236 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
237 /* 25 MHz spacing is supported by hw but not on upper layers */
238 centers->ext_center =
239 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
246 static void ath9k_hw_read_revisions(struct ath_hw *ah)
250 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
253 val = REG_READ(ah, AR_SREV);
254 ah->hw_version.macVersion =
255 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
256 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
257 ah->is_pciexpress = (val & AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
259 if (!AR_SREV_9100(ah))
260 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
262 ah->hw_version.macRev = val & AR_SREV_REVISION;
264 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
265 ah->is_pciexpress = true;
269 /************************************/
270 /* HW Attach, Detach, Init Routines */
271 /************************************/
273 static void ath9k_hw_disablepcie(struct ath_hw *ah)
275 if (!AR_SREV_5416(ah))
278 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
279 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
280 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
281 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
282 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
283 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
284 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
285 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
286 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
288 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
291 /* This should work for all families including legacy */
292 static bool ath9k_hw_chip_test(struct ath_hw *ah)
294 struct ath_common *common = ath9k_hw_common(ah);
295 u32 regAddr[2] = { AR_STA_ID0 };
297 static const u32 patternData[4] = {
298 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999
302 if (!AR_SREV_9300_20_OR_LATER(ah)) {
304 regAddr[1] = AR_PHY_BASE + (8 << 2);
308 for (i = 0; i < loop_max; i++) {
309 u32 addr = regAddr[i];
312 regHold[i] = REG_READ(ah, addr);
313 for (j = 0; j < 0x100; j++) {
314 wrData = (j << 16) | j;
315 REG_WRITE(ah, addr, wrData);
316 rdData = REG_READ(ah, addr);
317 if (rdData != wrData) {
319 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
320 addr, wrData, rdData);
324 for (j = 0; j < 4; j++) {
325 wrData = patternData[j];
326 REG_WRITE(ah, addr, wrData);
327 rdData = REG_READ(ah, addr);
328 if (wrData != rdData) {
330 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
331 addr, wrData, rdData);
335 REG_WRITE(ah, regAddr[i], regHold[i]);
342 static void ath9k_hw_init_config(struct ath_hw *ah)
346 ah->config.dma_beacon_response_time = 2;
347 ah->config.sw_beacon_response_time = 10;
348 ah->config.additional_swba_backoff = 0;
349 ah->config.ack_6mb = 0x0;
350 ah->config.cwm_ignore_extcca = 0;
351 ah->config.pcie_powersave_enable = 0;
352 ah->config.pcie_clock_req = 0;
353 ah->config.pcie_waen = 0;
354 ah->config.analog_shiftreg = 1;
355 ah->config.enable_ani = true;
357 for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
358 ah->config.spurchans[i][0] = AR_NO_SPUR;
359 ah->config.spurchans[i][1] = AR_NO_SPUR;
362 /* PAPRD needs some more work to be enabled */
363 ah->config.paprd_disable = 1;
365 ah->config.rx_intr_mitigation = true;
366 ah->config.pcieSerDesWrite = true;
369 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
370 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
371 * This means we use it for all AR5416 devices, and the few
372 * minor PCI AR9280 devices out there.
374 * Serialization is required because these devices do not handle
375 * well the case of two concurrent reads/writes due to the latency
376 * involved. During one read/write another read/write can be issued
377 * on another CPU while the previous read/write may still be working
378 * on our hardware, if we hit this case the hardware poops in a loop.
379 * We prevent this by serializing reads and writes.
381 * This issue is not present on PCI-Express devices or pre-AR5416
382 * devices (legacy, 802.11abg).
384 if (num_possible_cpus() > 1)
385 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
388 static void ath9k_hw_init_defaults(struct ath_hw *ah)
390 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
392 regulatory->country_code = CTRY_DEFAULT;
393 regulatory->power_limit = MAX_RATE_POWER;
394 regulatory->tp_scale = ATH9K_TP_SCALE_MAX;
396 ah->hw_version.magic = AR5416_MAGIC;
397 ah->hw_version.subvendorid = 0;
400 ah->sta_id1_defaults =
401 AR_STA_ID1_CRPT_MIC_ENABLE |
402 AR_STA_ID1_MCAST_KSRCH;
403 if (AR_SREV_9100(ah))
404 ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX;
405 ah->enable_32kHz_clock = DONT_USE_32KHZ;
407 ah->globaltxtimeout = (u32) -1;
408 ah->power_mode = ATH9K_PM_UNDEFINED;
411 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
413 struct ath_common *common = ath9k_hw_common(ah);
417 static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
420 for (i = 0; i < 3; i++) {
421 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
423 common->macaddr[2 * i] = eeval >> 8;
424 common->macaddr[2 * i + 1] = eeval & 0xff;
426 if (sum == 0 || sum == 0xffff * 3)
427 return -EADDRNOTAVAIL;
432 static int ath9k_hw_post_init(struct ath_hw *ah)
434 struct ath_common *common = ath9k_hw_common(ah);
437 if (common->bus_ops->ath_bus_type != ATH_USB) {
438 if (!ath9k_hw_chip_test(ah))
442 if (!AR_SREV_9300_20_OR_LATER(ah)) {
443 ecode = ar9002_hw_rf_claim(ah);
448 ecode = ath9k_hw_eeprom_init(ah);
452 ath_dbg(ath9k_hw_common(ah), ATH_DBG_CONFIG,
453 "Eeprom VER: %d, REV: %d\n",
454 ah->eep_ops->get_eeprom_ver(ah),
455 ah->eep_ops->get_eeprom_rev(ah));
457 ecode = ath9k_hw_rf_alloc_ext_banks(ah);
459 ath_err(ath9k_hw_common(ah),
460 "Failed allocating banks for external radio\n");
461 ath9k_hw_rf_free_ext_banks(ah);
465 if (!AR_SREV_9100(ah)) {
466 ath9k_hw_ani_setup(ah);
467 ath9k_hw_ani_init(ah);
473 static void ath9k_hw_attach_ops(struct ath_hw *ah)
475 if (AR_SREV_9300_20_OR_LATER(ah))
476 ar9003_hw_attach_ops(ah);
478 ar9002_hw_attach_ops(ah);
481 /* Called for all hardware families */
482 static int __ath9k_hw_init(struct ath_hw *ah)
484 struct ath_common *common = ath9k_hw_common(ah);
487 if (ah->hw_version.devid == AR5416_AR9100_DEVID)
488 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
490 ath9k_hw_read_revisions(ah);
493 * Read back AR_WA into a permanent copy and set bits 14 and 17.
494 * We need to do this to avoid RMW of this register. We cannot
495 * read the reg when chip is asleep.
497 ah->WARegVal = REG_READ(ah, AR_WA);
498 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
499 AR_WA_ASPM_TIMER_BASED_DISABLE);
501 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
502 ath_err(common, "Couldn't reset chip\n");
506 ath9k_hw_init_defaults(ah);
507 ath9k_hw_init_config(ah);
509 ath9k_hw_attach_ops(ah);
511 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
512 ath_err(common, "Couldn't wakeup chip\n");
516 if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
517 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
518 ((AR_SREV_9160(ah) || AR_SREV_9280(ah)) &&
519 !ah->is_pciexpress)) {
520 ah->config.serialize_regmode =
523 ah->config.serialize_regmode =
528 ath_dbg(common, ATH_DBG_RESET, "serialize_regmode is %d\n",
529 ah->config.serialize_regmode);
531 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
532 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
534 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
536 switch (ah->hw_version.macVersion) {
537 case AR_SREV_VERSION_5416_PCI:
538 case AR_SREV_VERSION_5416_PCIE:
539 case AR_SREV_VERSION_9160:
540 case AR_SREV_VERSION_9100:
541 case AR_SREV_VERSION_9280:
542 case AR_SREV_VERSION_9285:
543 case AR_SREV_VERSION_9287:
544 case AR_SREV_VERSION_9271:
545 case AR_SREV_VERSION_9300:
546 case AR_SREV_VERSION_9485:
550 "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
551 ah->hw_version.macVersion, ah->hw_version.macRev);
555 if (AR_SREV_9271(ah) || AR_SREV_9100(ah))
556 ah->is_pciexpress = false;
558 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
559 ath9k_hw_init_cal_settings(ah);
561 ah->ani_function = ATH9K_ANI_ALL;
562 if (AR_SREV_9280_20_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah))
563 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
564 if (!AR_SREV_9300_20_OR_LATER(ah))
565 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
567 ath9k_hw_init_mode_regs(ah);
570 if (ah->is_pciexpress)
571 ath9k_hw_configpcipowersave(ah, 0, 0);
573 ath9k_hw_disablepcie(ah);
575 if (!AR_SREV_9300_20_OR_LATER(ah))
576 ar9002_hw_cck_chan14_spread(ah);
578 r = ath9k_hw_post_init(ah);
582 ath9k_hw_init_mode_gain_regs(ah);
583 r = ath9k_hw_fill_cap_info(ah);
587 r = ath9k_hw_init_macaddr(ah);
589 ath_err(common, "Failed to initialize MAC address\n");
593 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
594 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
596 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
598 ah->bb_watchdog_timeout_ms = 25;
600 common->state = ATH_HW_INITIALIZED;
605 int ath9k_hw_init(struct ath_hw *ah)
608 struct ath_common *common = ath9k_hw_common(ah);
610 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
611 switch (ah->hw_version.devid) {
612 case AR5416_DEVID_PCI:
613 case AR5416_DEVID_PCIE:
614 case AR5416_AR9100_DEVID:
615 case AR9160_DEVID_PCI:
616 case AR9280_DEVID_PCI:
617 case AR9280_DEVID_PCIE:
618 case AR9285_DEVID_PCIE:
619 case AR9287_DEVID_PCI:
620 case AR9287_DEVID_PCIE:
621 case AR2427_DEVID_PCIE:
622 case AR9300_DEVID_PCIE:
623 case AR9300_DEVID_AR9485_PCIE:
626 if (common->bus_ops->ath_bus_type == ATH_USB)
628 ath_err(common, "Hardware device ID 0x%04x not supported\n",
629 ah->hw_version.devid);
633 ret = __ath9k_hw_init(ah);
636 "Unable to initialize hardware; initialization status: %d\n",
643 EXPORT_SYMBOL(ath9k_hw_init);
645 static void ath9k_hw_init_qos(struct ath_hw *ah)
647 ENABLE_REGWRITE_BUFFER(ah);
649 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
650 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
652 REG_WRITE(ah, AR_QOS_NO_ACK,
653 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
654 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
655 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
657 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
658 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
659 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
660 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
661 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
663 REGWRITE_BUFFER_FLUSH(ah);
666 unsigned long ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
668 REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
670 REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
672 while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0)
675 return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
677 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
679 #define 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);
721 pll = ath9k_hw_compute_pll_control(ah, chan);
723 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
725 if (AR_SREV_9485(ah))
728 /* Switch the core clock for ar9271 to 117Mhz */
729 if (AR_SREV_9271(ah)) {
731 REG_WRITE(ah, 0x50040, 0x304);
734 udelay(RTC_PLL_SETTLE_DELAY);
736 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
739 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
740 enum nl80211_iftype opmode)
742 u32 imr_reg = AR_IMR_TXERR |
748 if (AR_SREV_9300_20_OR_LATER(ah)) {
749 imr_reg |= AR_IMR_RXOK_HP;
750 if (ah->config.rx_intr_mitigation)
751 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
753 imr_reg |= AR_IMR_RXOK_LP;
756 if (ah->config.rx_intr_mitigation)
757 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
759 imr_reg |= AR_IMR_RXOK;
762 if (ah->config.tx_intr_mitigation)
763 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
765 imr_reg |= AR_IMR_TXOK;
767 if (opmode == NL80211_IFTYPE_AP)
768 imr_reg |= AR_IMR_MIB;
770 ENABLE_REGWRITE_BUFFER(ah);
772 REG_WRITE(ah, AR_IMR, imr_reg);
773 ah->imrs2_reg |= AR_IMR_S2_GTT;
774 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
776 if (!AR_SREV_9100(ah)) {
777 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
778 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
779 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
782 REGWRITE_BUFFER_FLUSH(ah);
784 if (AR_SREV_9300_20_OR_LATER(ah)) {
785 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
786 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
787 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
788 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
792 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
794 u32 val = ath9k_hw_mac_to_clks(ah, us);
795 val = min(val, (u32) 0xFFFF);
796 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
799 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
801 u32 val = ath9k_hw_mac_to_clks(ah, us);
802 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
803 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
806 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
808 u32 val = ath9k_hw_mac_to_clks(ah, us);
809 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
810 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
813 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
816 ath_dbg(ath9k_hw_common(ah), ATH_DBG_XMIT,
817 "bad global tx timeout %u\n", tu);
818 ah->globaltxtimeout = (u32) -1;
821 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
822 ah->globaltxtimeout = tu;
827 void ath9k_hw_init_global_settings(struct ath_hw *ah)
829 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
834 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
837 if (ah->misc_mode != 0)
838 REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
840 if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ)
845 /* As defined by IEEE 802.11-2007 17.3.8.6 */
846 slottime = ah->slottime + 3 * ah->coverage_class;
847 acktimeout = slottime + sifstime;
850 * Workaround for early ACK timeouts, add an offset to match the
851 * initval's 64us ack timeout value.
852 * This was initially only meant to work around an issue with delayed
853 * BA frames in some implementations, but it has been found to fix ACK
854 * timeout issues in other cases as well.
856 if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
857 acktimeout += 64 - sifstime - ah->slottime;
859 ath9k_hw_setslottime(ah, ah->slottime);
860 ath9k_hw_set_ack_timeout(ah, acktimeout);
861 ath9k_hw_set_cts_timeout(ah, acktimeout);
862 if (ah->globaltxtimeout != (u32) -1)
863 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
865 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
867 void ath9k_hw_deinit(struct ath_hw *ah)
869 struct ath_common *common = ath9k_hw_common(ah);
871 if (common->state < ATH_HW_INITIALIZED)
874 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
877 ath9k_hw_rf_free_ext_banks(ah);
879 EXPORT_SYMBOL(ath9k_hw_deinit);
885 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
887 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
891 else if (IS_CHAN_G(chan))
899 /****************************************/
900 /* Reset and Channel Switching Routines */
901 /****************************************/
903 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
905 struct ath_common *common = ath9k_hw_common(ah);
907 ENABLE_REGWRITE_BUFFER(ah);
910 * set AHB_MODE not to do cacheline prefetches
912 if (!AR_SREV_9300_20_OR_LATER(ah))
913 REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
916 * let mac dma reads be in 128 byte chunks
918 REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK);
920 REGWRITE_BUFFER_FLUSH(ah);
923 * Restore TX Trigger Level to its pre-reset value.
924 * The initial value depends on whether aggregation is enabled, and is
925 * adjusted whenever underruns are detected.
927 if (!AR_SREV_9300_20_OR_LATER(ah))
928 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
930 ENABLE_REGWRITE_BUFFER(ah);
933 * let mac dma writes be in 128 byte chunks
935 REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK);
938 * Setup receive FIFO threshold to hold off TX activities
940 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
942 if (AR_SREV_9300_20_OR_LATER(ah)) {
943 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
944 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
946 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
947 ah->caps.rx_status_len);
951 * reduce the number of usable entries in PCU TXBUF to avoid
952 * wrap around issues.
954 if (AR_SREV_9285(ah)) {
955 /* For AR9285 the number of Fifos are reduced to half.
956 * So set the usable tx buf size also to half to
957 * avoid data/delimiter underruns
959 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
960 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
961 } else if (!AR_SREV_9271(ah)) {
962 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
963 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
966 REGWRITE_BUFFER_FLUSH(ah);
968 if (AR_SREV_9300_20_OR_LATER(ah))
969 ath9k_hw_reset_txstatus_ring(ah);
972 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
974 u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC;
975 u32 set = AR_STA_ID1_KSRCH_MODE;
978 case NL80211_IFTYPE_ADHOC:
979 case NL80211_IFTYPE_MESH_POINT:
980 set |= AR_STA_ID1_ADHOC;
981 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
983 case NL80211_IFTYPE_AP:
984 set |= AR_STA_ID1_STA_AP;
986 case NL80211_IFTYPE_STATION:
987 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
990 if (!ah->is_monitoring)
994 REG_RMW(ah, AR_STA_ID1, set, mask);
997 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
998 u32 *coef_mantissa, u32 *coef_exponent)
1000 u32 coef_exp, coef_man;
1002 for (coef_exp = 31; coef_exp > 0; coef_exp--)
1003 if ((coef_scaled >> coef_exp) & 0x1)
1006 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1008 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1010 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1011 *coef_exponent = coef_exp - 16;
1014 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1019 if (AR_SREV_9100(ah)) {
1020 REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK,
1021 AR_RTC_DERIVED_CLK_PERIOD, 1);
1022 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1025 ENABLE_REGWRITE_BUFFER(ah);
1027 if (AR_SREV_9300_20_OR_LATER(ah)) {
1028 REG_WRITE(ah, AR_WA, ah->WARegVal);
1032 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1033 AR_RTC_FORCE_WAKE_ON_INT);
1035 if (AR_SREV_9100(ah)) {
1036 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1037 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1039 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1041 (AR_INTR_SYNC_LOCAL_TIMEOUT |
1042 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1044 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1047 if (!AR_SREV_9300_20_OR_LATER(ah))
1049 REG_WRITE(ah, AR_RC, val);
1051 } else if (!AR_SREV_9300_20_OR_LATER(ah))
1052 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1054 rst_flags = AR_RTC_RC_MAC_WARM;
1055 if (type == ATH9K_RESET_COLD)
1056 rst_flags |= AR_RTC_RC_MAC_COLD;
1059 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1061 REGWRITE_BUFFER_FLUSH(ah);
1065 REG_WRITE(ah, AR_RTC_RC, 0);
1066 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1067 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
1068 "RTC stuck in MAC reset\n");
1072 if (!AR_SREV_9100(ah))
1073 REG_WRITE(ah, AR_RC, 0);
1075 if (AR_SREV_9100(ah))
1081 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1083 ENABLE_REGWRITE_BUFFER(ah);
1085 if (AR_SREV_9300_20_OR_LATER(ah)) {
1086 REG_WRITE(ah, AR_WA, ah->WARegVal);
1090 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1091 AR_RTC_FORCE_WAKE_ON_INT);
1093 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1094 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1096 REG_WRITE(ah, AR_RTC_RESET, 0);
1098 REGWRITE_BUFFER_FLUSH(ah);
1100 if (!AR_SREV_9300_20_OR_LATER(ah))
1103 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1104 REG_WRITE(ah, AR_RC, 0);
1106 REG_WRITE(ah, AR_RTC_RESET, 1);
1108 if (!ath9k_hw_wait(ah,
1113 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
1114 "RTC not waking up\n");
1118 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1121 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1123 if (AR_SREV_9300_20_OR_LATER(ah)) {
1124 REG_WRITE(ah, AR_WA, ah->WARegVal);
1128 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1129 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1132 case ATH9K_RESET_POWER_ON:
1133 return ath9k_hw_set_reset_power_on(ah);
1134 case ATH9K_RESET_WARM:
1135 case ATH9K_RESET_COLD:
1136 return ath9k_hw_set_reset(ah, type);
1142 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1143 struct ath9k_channel *chan)
1145 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1146 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1148 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1151 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1154 ah->chip_fullsleep = false;
1155 ath9k_hw_init_pll(ah, chan);
1156 ath9k_hw_set_rfmode(ah, chan);
1161 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1162 struct ath9k_channel *chan)
1164 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1165 struct ath_common *common = ath9k_hw_common(ah);
1166 struct ieee80211_channel *channel = chan->chan;
1170 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1171 if (ath9k_hw_numtxpending(ah, qnum)) {
1172 ath_dbg(common, ATH_DBG_QUEUE,
1173 "Transmit frames pending on queue %d\n", qnum);
1178 if (!ath9k_hw_rfbus_req(ah)) {
1179 ath_err(common, "Could not kill baseband RX\n");
1183 ath9k_hw_set_channel_regs(ah, chan);
1185 r = ath9k_hw_rf_set_freq(ah, chan);
1187 ath_err(common, "Failed to set channel\n");
1190 ath9k_hw_set_clockrate(ah);
1192 ah->eep_ops->set_txpower(ah, chan,
1193 ath9k_regd_get_ctl(regulatory, chan),
1194 channel->max_antenna_gain * 2,
1195 channel->max_power * 2,
1196 min((u32) MAX_RATE_POWER,
1197 (u32) regulatory->power_limit), false);
1199 ath9k_hw_rfbus_done(ah);
1201 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1202 ath9k_hw_set_delta_slope(ah, chan);
1204 ath9k_hw_spur_mitigate_freq(ah, chan);
1209 static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
1211 u32 gpio_mask = ah->gpio_mask;
1214 for (i = 0; gpio_mask; i++, gpio_mask >>= 1) {
1215 if (!(gpio_mask & 1))
1218 ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
1219 ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
1223 bool ath9k_hw_check_alive(struct ath_hw *ah)
1228 if (AR_SREV_9285_12_OR_LATER(ah))
1232 reg = REG_READ(ah, AR_OBS_BUS_1);
1234 if ((reg & 0x7E7FFFEF) == 0x00702400)
1237 switch (reg & 0x7E000B00) {
1245 } while (count-- > 0);
1249 EXPORT_SYMBOL(ath9k_hw_check_alive);
1251 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1252 struct ath9k_hw_cal_data *caldata, bool bChannelChange)
1254 struct ath_common *common = ath9k_hw_common(ah);
1256 struct ath9k_channel *curchan = ah->curchan;
1262 ah->txchainmask = common->tx_chainmask;
1263 ah->rxchainmask = common->rx_chainmask;
1265 if ((common->bus_ops->ath_bus_type != ATH_USB) && !ah->chip_fullsleep) {
1266 ath9k_hw_abortpcurecv(ah);
1267 if (!ath9k_hw_stopdmarecv(ah)) {
1268 ath_dbg(common, ATH_DBG_XMIT,
1269 "Failed to stop receive dma\n");
1270 bChannelChange = false;
1274 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1277 if (curchan && !ah->chip_fullsleep)
1278 ath9k_hw_getnf(ah, curchan);
1280 ah->caldata = caldata;
1282 (chan->channel != caldata->channel ||
1283 (chan->channelFlags & ~CHANNEL_CW_INT) !=
1284 (caldata->channelFlags & ~CHANNEL_CW_INT))) {
1285 /* Operating channel changed, reset channel calibration data */
1286 memset(caldata, 0, sizeof(*caldata));
1287 ath9k_init_nfcal_hist_buffer(ah, chan);
1290 if (bChannelChange &&
1291 (ah->chip_fullsleep != true) &&
1292 (ah->curchan != NULL) &&
1293 (chan->channel != ah->curchan->channel) &&
1294 ((chan->channelFlags & CHANNEL_ALL) ==
1295 (ah->curchan->channelFlags & CHANNEL_ALL)) &&
1296 (!AR_SREV_9280(ah) || AR_DEVID_7010(ah))) {
1298 if (ath9k_hw_channel_change(ah, chan)) {
1299 ath9k_hw_loadnf(ah, ah->curchan);
1300 ath9k_hw_start_nfcal(ah, true);
1301 if (AR_SREV_9271(ah))
1302 ar9002_hw_load_ani_reg(ah, chan);
1307 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1308 if (saveDefAntenna == 0)
1311 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1313 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1314 if (AR_SREV_9100(ah) ||
1315 (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)))
1316 tsf = ath9k_hw_gettsf64(ah);
1318 saveLedState = REG_READ(ah, AR_CFG_LED) &
1319 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1320 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1322 ath9k_hw_mark_phy_inactive(ah);
1324 ah->paprd_table_write_done = false;
1326 /* Only required on the first reset */
1327 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1329 AR9271_RESET_POWER_DOWN_CONTROL,
1330 AR9271_RADIO_RF_RST);
1334 if (!ath9k_hw_chip_reset(ah, chan)) {
1335 ath_err(common, "Chip reset failed\n");
1339 /* Only required on the first reset */
1340 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1341 ah->htc_reset_init = false;
1343 AR9271_RESET_POWER_DOWN_CONTROL,
1344 AR9271_GATE_MAC_CTL);
1350 ath9k_hw_settsf64(ah, tsf);
1352 if (AR_SREV_9280_20_OR_LATER(ah))
1353 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1355 if (!AR_SREV_9300_20_OR_LATER(ah))
1356 ar9002_hw_enable_async_fifo(ah);
1358 r = ath9k_hw_process_ini(ah, chan);
1363 * Some AR91xx SoC devices frequently fail to accept TSF writes
1364 * right after the chip reset. When that happens, write a new
1365 * value after the initvals have been applied, with an offset
1366 * based on measured time difference
1368 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1370 ath9k_hw_settsf64(ah, tsf);
1373 /* Setup MFP options for CCMP */
1374 if (AR_SREV_9280_20_OR_LATER(ah)) {
1375 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1376 * frames when constructing CCMP AAD. */
1377 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1379 ah->sw_mgmt_crypto = false;
1380 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1381 /* Disable hardware crypto for management frames */
1382 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1383 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1384 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1385 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1386 ah->sw_mgmt_crypto = true;
1388 ah->sw_mgmt_crypto = true;
1390 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1391 ath9k_hw_set_delta_slope(ah, chan);
1393 ath9k_hw_spur_mitigate_freq(ah, chan);
1394 ah->eep_ops->set_board_values(ah, chan);
1396 ENABLE_REGWRITE_BUFFER(ah);
1398 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1399 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
1401 | AR_STA_ID1_RTS_USE_DEF
1403 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1404 | ah->sta_id1_defaults);
1405 ath_hw_setbssidmask(common);
1406 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1407 ath9k_hw_write_associd(ah);
1408 REG_WRITE(ah, AR_ISR, ~0);
1409 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1411 REGWRITE_BUFFER_FLUSH(ah);
1413 ath9k_hw_set_operating_mode(ah, ah->opmode);
1415 r = ath9k_hw_rf_set_freq(ah, chan);
1419 ath9k_hw_set_clockrate(ah);
1421 ENABLE_REGWRITE_BUFFER(ah);
1423 for (i = 0; i < AR_NUM_DCU; i++)
1424 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1426 REGWRITE_BUFFER_FLUSH(ah);
1429 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
1430 ath9k_hw_resettxqueue(ah, i);
1432 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1433 ath9k_hw_ani_cache_ini_regs(ah);
1434 ath9k_hw_init_qos(ah);
1436 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1437 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
1439 ath9k_hw_init_global_settings(ah);
1441 if (!AR_SREV_9300_20_OR_LATER(ah)) {
1442 ar9002_hw_update_async_fifo(ah);
1443 ar9002_hw_enable_wep_aggregation(ah);
1446 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
1448 ath9k_hw_set_dma(ah);
1450 REG_WRITE(ah, AR_OBS, 8);
1452 if (ah->config.rx_intr_mitigation) {
1453 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
1454 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
1457 if (ah->config.tx_intr_mitigation) {
1458 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1459 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1462 ath9k_hw_init_bb(ah, chan);
1464 if (!ath9k_hw_init_cal(ah, chan))
1467 ENABLE_REGWRITE_BUFFER(ah);
1469 ath9k_hw_restore_chainmask(ah);
1470 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1472 REGWRITE_BUFFER_FLUSH(ah);
1475 * For big endian systems turn on swapping for descriptors
1477 if (AR_SREV_9100(ah)) {
1479 mask = REG_READ(ah, AR_CFG);
1480 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1481 ath_dbg(common, ATH_DBG_RESET,
1482 "CFG Byte Swap Set 0x%x\n", mask);
1485 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1486 REG_WRITE(ah, AR_CFG, mask);
1487 ath_dbg(common, ATH_DBG_RESET,
1488 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
1491 if (common->bus_ops->ath_bus_type == ATH_USB) {
1492 /* Configure AR9271 target WLAN */
1493 if (AR_SREV_9271(ah))
1494 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1496 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1500 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1504 if (ah->btcoex_hw.enabled)
1505 ath9k_hw_btcoex_enable(ah);
1507 if (AR_SREV_9300_20_OR_LATER(ah))
1508 ar9003_hw_bb_watchdog_config(ah);
1510 ath9k_hw_apply_gpio_override(ah);
1514 EXPORT_SYMBOL(ath9k_hw_reset);
1516 /******************************/
1517 /* Power Management (Chipset) */
1518 /******************************/
1521 * Notify Power Mgt is disabled in self-generated frames.
1522 * If requested, force chip to sleep.
1524 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
1526 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1529 * Clear the RTC force wake bit to allow the
1530 * mac to go to sleep.
1532 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1533 AR_RTC_FORCE_WAKE_EN);
1534 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1535 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1537 /* Shutdown chip. Active low */
1538 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah))
1539 REG_CLR_BIT(ah, (AR_RTC_RESET),
1543 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
1544 if (AR_SREV_9300_20_OR_LATER(ah))
1545 REG_WRITE(ah, AR_WA,
1546 ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1550 * Notify Power Management is enabled in self-generating
1551 * frames. If request, set power mode of chip to
1552 * auto/normal. Duration in units of 128us (1/8 TU).
1554 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
1556 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1558 struct ath9k_hw_capabilities *pCap = &ah->caps;
1560 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1561 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1562 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1563 AR_RTC_FORCE_WAKE_ON_INT);
1566 * Clear the RTC force wake bit to allow the
1567 * mac to go to sleep.
1569 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1570 AR_RTC_FORCE_WAKE_EN);
1574 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
1575 if (AR_SREV_9300_20_OR_LATER(ah))
1576 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1579 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
1584 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
1585 if (AR_SREV_9300_20_OR_LATER(ah)) {
1586 REG_WRITE(ah, AR_WA, ah->WARegVal);
1591 if ((REG_READ(ah, AR_RTC_STATUS) &
1592 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1593 if (ath9k_hw_set_reset_reg(ah,
1594 ATH9K_RESET_POWER_ON) != true) {
1597 if (!AR_SREV_9300_20_OR_LATER(ah))
1598 ath9k_hw_init_pll(ah, NULL);
1600 if (AR_SREV_9100(ah))
1601 REG_SET_BIT(ah, AR_RTC_RESET,
1604 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1605 AR_RTC_FORCE_WAKE_EN);
1608 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1609 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1610 if (val == AR_RTC_STATUS_ON)
1613 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1614 AR_RTC_FORCE_WAKE_EN);
1617 ath_err(ath9k_hw_common(ah),
1618 "Failed to wakeup in %uus\n",
1619 POWER_UP_TIME / 20);
1624 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1629 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
1631 struct ath_common *common = ath9k_hw_common(ah);
1632 int status = true, setChip = true;
1633 static const char *modes[] = {
1640 if (ah->power_mode == mode)
1643 ath_dbg(common, ATH_DBG_RESET, "%s -> %s\n",
1644 modes[ah->power_mode], modes[mode]);
1647 case ATH9K_PM_AWAKE:
1648 status = ath9k_hw_set_power_awake(ah, setChip);
1650 case ATH9K_PM_FULL_SLEEP:
1651 ath9k_set_power_sleep(ah, setChip);
1652 ah->chip_fullsleep = true;
1654 case ATH9K_PM_NETWORK_SLEEP:
1655 ath9k_set_power_network_sleep(ah, setChip);
1658 ath_err(common, "Unknown power mode %u\n", mode);
1661 ah->power_mode = mode;
1664 * XXX: If this warning never comes up after a while then
1665 * simply keep the ATH_DBG_WARN_ON_ONCE() but make
1666 * ath9k_hw_setpower() return type void.
1669 if (!(ah->ah_flags & AH_UNPLUGGED))
1670 ATH_DBG_WARN_ON_ONCE(!status);
1674 EXPORT_SYMBOL(ath9k_hw_setpower);
1676 /*******************/
1677 /* Beacon Handling */
1678 /*******************/
1680 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
1684 ENABLE_REGWRITE_BUFFER(ah);
1686 switch (ah->opmode) {
1687 case NL80211_IFTYPE_ADHOC:
1688 case NL80211_IFTYPE_MESH_POINT:
1689 REG_SET_BIT(ah, AR_TXCFG,
1690 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
1691 REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon +
1692 TU_TO_USEC(ah->atim_window ? ah->atim_window : 1));
1693 flags |= AR_NDP_TIMER_EN;
1694 case NL80211_IFTYPE_AP:
1695 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
1696 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
1697 TU_TO_USEC(ah->config.dma_beacon_response_time));
1698 REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
1699 TU_TO_USEC(ah->config.sw_beacon_response_time));
1701 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
1704 ath_dbg(ath9k_hw_common(ah), ATH_DBG_BEACON,
1705 "%s: unsupported opmode: %d\n",
1706 __func__, ah->opmode);
1711 REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
1712 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
1713 REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
1714 REG_WRITE(ah, AR_NDP_PERIOD, beacon_period);
1716 REGWRITE_BUFFER_FLUSH(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;
1852 else if (AR_SREV_9100(ah))
1853 pCap->rx_chainmask = 0x7;
1855 /* Use rx_chainmask from EEPROM. */
1856 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
1858 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
1860 /* enable key search for every frame in an aggregate */
1861 if (AR_SREV_9300_20_OR_LATER(ah))
1862 ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
1864 common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
1866 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
1867 pCap->hw_caps |= ATH9K_HW_CAP_HT;
1869 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
1871 if (AR_SREV_9271(ah))
1872 pCap->num_gpio_pins = AR9271_NUM_GPIO;
1873 else if (AR_DEVID_7010(ah))
1874 pCap->num_gpio_pins = AR7010_NUM_GPIO;
1875 else if (AR_SREV_9285_12_OR_LATER(ah))
1876 pCap->num_gpio_pins = AR9285_NUM_GPIO;
1877 else if (AR_SREV_9280_20_OR_LATER(ah))
1878 pCap->num_gpio_pins = AR928X_NUM_GPIO;
1880 pCap->num_gpio_pins = AR_NUM_GPIO;
1882 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
1883 pCap->hw_caps |= ATH9K_HW_CAP_CST;
1884 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
1886 pCap->rts_aggr_limit = (8 * 1024);
1889 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
1890 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
1891 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
1893 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
1894 ah->rfkill_polarity =
1895 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
1897 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
1900 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
1901 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
1903 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
1905 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
1906 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
1908 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
1910 if (AR_SREV_9280_20_OR_LATER(ah) && common->btcoex_enabled) {
1911 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
1912 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
1914 if (AR_SREV_9285(ah)) {
1915 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
1916 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
1918 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
1921 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
1924 if (AR_SREV_9300_20_OR_LATER(ah)) {
1925 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
1926 if (!AR_SREV_9485(ah))
1927 pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
1929 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
1930 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
1931 pCap->rx_status_len = sizeof(struct ar9003_rxs);
1932 pCap->tx_desc_len = sizeof(struct ar9003_txc);
1933 pCap->txs_len = sizeof(struct ar9003_txs);
1934 if (!ah->config.paprd_disable &&
1935 ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
1936 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
1938 pCap->tx_desc_len = sizeof(struct ath_desc);
1939 if (AR_SREV_9280_20(ah) &&
1940 ((ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) <=
1941 AR5416_EEP_MINOR_VER_16) ||
1942 ah->eep_ops->get_eeprom(ah, EEP_FSTCLK_5G)))
1943 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
1946 if (AR_SREV_9300_20_OR_LATER(ah))
1947 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
1949 if (AR_SREV_9300_20_OR_LATER(ah))
1950 ah->ent_mode = REG_READ(ah, AR_ENT_OTP);
1952 if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah))
1953 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
1955 if (AR_SREV_9285(ah))
1956 if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) {
1958 ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
1959 if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1))
1960 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
1962 if (AR_SREV_9300_20_OR_LATER(ah)) {
1963 if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
1964 pCap->hw_caps |= ATH9K_HW_CAP_APM;
1969 if (AR_SREV_9485_10(ah)) {
1970 pCap->pcie_lcr_extsync_en = true;
1971 pCap->pcie_lcr_offset = 0x80;
1974 tx_chainmask = pCap->tx_chainmask;
1975 rx_chainmask = pCap->rx_chainmask;
1976 while (tx_chainmask || rx_chainmask) {
1977 if (tx_chainmask & BIT(0))
1978 pCap->max_txchains++;
1979 if (rx_chainmask & BIT(0))
1980 pCap->max_rxchains++;
1989 /****************************/
1990 /* GPIO / RFKILL / Antennae */
1991 /****************************/
1993 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
1997 u32 gpio_shift, tmp;
2000 addr = AR_GPIO_OUTPUT_MUX3;
2002 addr = AR_GPIO_OUTPUT_MUX2;
2004 addr = AR_GPIO_OUTPUT_MUX1;
2006 gpio_shift = (gpio % 6) * 5;
2008 if (AR_SREV_9280_20_OR_LATER(ah)
2009 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2010 REG_RMW(ah, addr, (type << gpio_shift),
2011 (0x1f << gpio_shift));
2013 tmp = REG_READ(ah, addr);
2014 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2015 tmp &= ~(0x1f << gpio_shift);
2016 tmp |= (type << gpio_shift);
2017 REG_WRITE(ah, addr, tmp);
2021 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2025 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2027 if (AR_DEVID_7010(ah)) {
2029 REG_RMW(ah, AR7010_GPIO_OE,
2030 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2031 (AR7010_GPIO_OE_MASK << gpio_shift));
2035 gpio_shift = gpio << 1;
2038 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2039 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2041 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2043 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2045 #define MS_REG_READ(x, y) \
2046 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2048 if (gpio >= ah->caps.num_gpio_pins)
2051 if (AR_DEVID_7010(ah)) {
2053 val = REG_READ(ah, AR7010_GPIO_IN);
2054 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2055 } else if (AR_SREV_9300_20_OR_LATER(ah))
2056 return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
2057 AR_GPIO_BIT(gpio)) != 0;
2058 else if (AR_SREV_9271(ah))
2059 return MS_REG_READ(AR9271, gpio) != 0;
2060 else if (AR_SREV_9287_11_OR_LATER(ah))
2061 return MS_REG_READ(AR9287, gpio) != 0;
2062 else if (AR_SREV_9285_12_OR_LATER(ah))
2063 return MS_REG_READ(AR9285, gpio) != 0;
2064 else if (AR_SREV_9280_20_OR_LATER(ah))
2065 return MS_REG_READ(AR928X, gpio) != 0;
2067 return MS_REG_READ(AR, gpio) != 0;
2069 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2071 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2076 if (AR_DEVID_7010(ah)) {
2078 REG_RMW(ah, AR7010_GPIO_OE,
2079 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2080 (AR7010_GPIO_OE_MASK << gpio_shift));
2084 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2085 gpio_shift = 2 * gpio;
2088 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2089 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2091 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2093 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2095 if (AR_DEVID_7010(ah)) {
2097 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2102 if (AR_SREV_9271(ah))
2105 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2108 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2110 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
2112 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
2114 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
2116 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2118 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2120 EXPORT_SYMBOL(ath9k_hw_setantenna);
2122 /*********************/
2123 /* General Operation */
2124 /*********************/
2126 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2128 u32 bits = REG_READ(ah, AR_RX_FILTER);
2129 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2131 if (phybits & AR_PHY_ERR_RADAR)
2132 bits |= ATH9K_RX_FILTER_PHYRADAR;
2133 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2134 bits |= ATH9K_RX_FILTER_PHYERR;
2138 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2140 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2144 ENABLE_REGWRITE_BUFFER(ah);
2146 REG_WRITE(ah, AR_RX_FILTER, bits);
2149 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2150 phybits |= AR_PHY_ERR_RADAR;
2151 if (bits & ATH9K_RX_FILTER_PHYERR)
2152 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2153 REG_WRITE(ah, AR_PHY_ERR, phybits);
2156 REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2158 REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2160 REGWRITE_BUFFER_FLUSH(ah);
2162 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2164 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2166 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2169 ath9k_hw_init_pll(ah, NULL);
2172 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2174 bool ath9k_hw_disable(struct ath_hw *ah)
2176 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2179 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2182 ath9k_hw_init_pll(ah, NULL);
2185 EXPORT_SYMBOL(ath9k_hw_disable);
2187 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
2189 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2190 struct ath9k_channel *chan = ah->curchan;
2191 struct ieee80211_channel *channel = chan->chan;
2193 regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
2195 ah->eep_ops->set_txpower(ah, chan,
2196 ath9k_regd_get_ctl(regulatory, chan),
2197 channel->max_antenna_gain * 2,
2198 channel->max_power * 2,
2199 min((u32) MAX_RATE_POWER,
2200 (u32) regulatory->power_limit), test);
2202 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2204 void ath9k_hw_setopmode(struct ath_hw *ah)
2206 ath9k_hw_set_operating_mode(ah, ah->opmode);
2208 EXPORT_SYMBOL(ath9k_hw_setopmode);
2210 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2212 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2213 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2215 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2217 void ath9k_hw_write_associd(struct ath_hw *ah)
2219 struct ath_common *common = ath9k_hw_common(ah);
2221 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2222 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2223 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2225 EXPORT_SYMBOL(ath9k_hw_write_associd);
2227 #define ATH9K_MAX_TSF_READ 10
2229 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2231 u32 tsf_lower, tsf_upper1, tsf_upper2;
2234 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2235 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2236 tsf_lower = REG_READ(ah, AR_TSF_L32);
2237 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2238 if (tsf_upper2 == tsf_upper1)
2240 tsf_upper1 = tsf_upper2;
2243 WARN_ON( i == ATH9K_MAX_TSF_READ );
2245 return (((u64)tsf_upper1 << 32) | tsf_lower);
2247 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2249 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2251 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2252 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2254 EXPORT_SYMBOL(ath9k_hw_settsf64);
2256 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2258 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2259 AH_TSF_WRITE_TIMEOUT))
2260 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
2261 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2263 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2265 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2267 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
2270 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2272 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2274 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2276 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2278 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2281 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2282 macmode = AR_2040_JOINED_RX_CLEAR;
2286 REG_WRITE(ah, AR_2040_MODE, macmode);
2289 /* HW Generic timers configuration */
2291 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2293 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2294 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2295 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2296 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2297 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2298 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2299 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2300 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2301 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2302 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2303 AR_NDP2_TIMER_MODE, 0x0002},
2304 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2305 AR_NDP2_TIMER_MODE, 0x0004},
2306 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2307 AR_NDP2_TIMER_MODE, 0x0008},
2308 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2309 AR_NDP2_TIMER_MODE, 0x0010},
2310 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2311 AR_NDP2_TIMER_MODE, 0x0020},
2312 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2313 AR_NDP2_TIMER_MODE, 0x0040},
2314 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2315 AR_NDP2_TIMER_MODE, 0x0080}
2318 /* HW generic timer primitives */
2320 /* compute and clear index of rightmost 1 */
2321 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2331 return timer_table->gen_timer_index[b];
2334 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2336 return REG_READ(ah, AR_TSF_L32);
2338 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2340 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2341 void (*trigger)(void *),
2342 void (*overflow)(void *),
2346 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2347 struct ath_gen_timer *timer;
2349 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2351 if (timer == NULL) {
2352 ath_err(ath9k_hw_common(ah),
2353 "Failed to allocate memory for hw timer[%d]\n",
2358 /* allocate a hardware generic timer slot */
2359 timer_table->timers[timer_index] = timer;
2360 timer->index = timer_index;
2361 timer->trigger = trigger;
2362 timer->overflow = overflow;
2367 EXPORT_SYMBOL(ath_gen_timer_alloc);
2369 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2370 struct ath_gen_timer *timer,
2374 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2377 BUG_ON(!timer_period);
2379 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2381 tsf = ath9k_hw_gettsf32(ah);
2383 ath_dbg(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
2384 "current tsf %x period %x timer_next %x\n",
2385 tsf, timer_period, timer_next);
2388 * Pull timer_next forward if the current TSF already passed it
2389 * because of software latency
2391 if (timer_next < tsf)
2392 timer_next = tsf + timer_period;
2395 * Program generic timer registers
2397 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2399 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2401 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2402 gen_tmr_configuration[timer->index].mode_mask);
2404 /* Enable both trigger and thresh interrupt masks */
2405 REG_SET_BIT(ah, AR_IMR_S5,
2406 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2407 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2409 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2411 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2413 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2415 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2416 (timer->index >= ATH_MAX_GEN_TIMER)) {
2420 /* Clear generic timer enable bits. */
2421 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2422 gen_tmr_configuration[timer->index].mode_mask);
2424 /* Disable both trigger and thresh interrupt masks */
2425 REG_CLR_BIT(ah, AR_IMR_S5,
2426 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2427 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2429 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
2431 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
2433 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2435 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2437 /* free the hardware generic timer slot */
2438 timer_table->timers[timer->index] = NULL;
2441 EXPORT_SYMBOL(ath_gen_timer_free);
2444 * Generic Timer Interrupts handling
2446 void ath_gen_timer_isr(struct ath_hw *ah)
2448 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2449 struct ath_gen_timer *timer;
2450 struct ath_common *common = ath9k_hw_common(ah);
2451 u32 trigger_mask, thresh_mask, index;
2453 /* get hardware generic timer interrupt status */
2454 trigger_mask = ah->intr_gen_timer_trigger;
2455 thresh_mask = ah->intr_gen_timer_thresh;
2456 trigger_mask &= timer_table->timer_mask.val;
2457 thresh_mask &= timer_table->timer_mask.val;
2459 trigger_mask &= ~thresh_mask;
2461 while (thresh_mask) {
2462 index = rightmost_index(timer_table, &thresh_mask);
2463 timer = timer_table->timers[index];
2465 ath_dbg(common, ATH_DBG_HWTIMER,
2466 "TSF overflow for Gen timer %d\n", index);
2467 timer->overflow(timer->arg);
2470 while (trigger_mask) {
2471 index = rightmost_index(timer_table, &trigger_mask);
2472 timer = timer_table->timers[index];
2474 ath_dbg(common, ATH_DBG_HWTIMER,
2475 "Gen timer[%d] trigger\n", index);
2476 timer->trigger(timer->arg);
2479 EXPORT_SYMBOL(ath_gen_timer_isr);
2485 void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2487 ah->htc_reset_init = true;
2489 EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2494 } ath_mac_bb_names[] = {
2495 /* Devices with external radios */
2496 { AR_SREV_VERSION_5416_PCI, "5416" },
2497 { AR_SREV_VERSION_5416_PCIE, "5418" },
2498 { AR_SREV_VERSION_9100, "9100" },
2499 { AR_SREV_VERSION_9160, "9160" },
2500 /* Single-chip solutions */
2501 { AR_SREV_VERSION_9280, "9280" },
2502 { AR_SREV_VERSION_9285, "9285" },
2503 { AR_SREV_VERSION_9287, "9287" },
2504 { AR_SREV_VERSION_9271, "9271" },
2505 { AR_SREV_VERSION_9300, "9300" },
2506 { AR_SREV_VERSION_9485, "9485" },
2509 /* For devices with external radios */
2513 } ath_rf_names[] = {
2515 { AR_RAD5133_SREV_MAJOR, "5133" },
2516 { AR_RAD5122_SREV_MAJOR, "5122" },
2517 { AR_RAD2133_SREV_MAJOR, "2133" },
2518 { AR_RAD2122_SREV_MAJOR, "2122" }
2522 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2524 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2528 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
2529 if (ath_mac_bb_names[i].version == mac_bb_version) {
2530 return ath_mac_bb_names[i].name;
2538 * Return the RF name. "????" is returned if the RF is unknown.
2539 * Used for devices with external radios.
2541 static const char *ath9k_hw_rf_name(u16 rf_version)
2545 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
2546 if (ath_rf_names[i].version == rf_version) {
2547 return ath_rf_names[i].name;
2554 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
2558 /* chipsets >= AR9280 are single-chip */
2559 if (AR_SREV_9280_20_OR_LATER(ah)) {
2560 used = snprintf(hw_name, len,
2561 "Atheros AR%s Rev:%x",
2562 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2563 ah->hw_version.macRev);
2566 used = snprintf(hw_name, len,
2567 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2568 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2569 ah->hw_version.macRev,
2570 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
2571 AR_RADIO_SREV_MAJOR)),
2572 ah->hw_version.phyRev);
2575 hw_name[used] = '\0';
2577 EXPORT_SYMBOL(ath9k_hw_name);