2 * Copyright (c) 2008-2011 Atheros Communications Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #include <linux/slab.h>
19 #include <linux/module.h>
20 #include <asm/unaligned.h>
25 #include "ar9003_mac.h"
27 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
29 MODULE_AUTHOR("Atheros Communications");
30 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
31 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
32 MODULE_LICENSE("Dual BSD/GPL");
34 static int __init ath9k_init(void)
38 module_init(ath9k_init);
40 static void __exit ath9k_exit(void)
44 module_exit(ath9k_exit);
46 /* Private hardware callbacks */
48 static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
50 ath9k_hw_private_ops(ah)->init_cal_settings(ah);
53 static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
55 ath9k_hw_private_ops(ah)->init_mode_regs(ah);
58 static u32 ath9k_hw_compute_pll_control(struct ath_hw *ah,
59 struct ath9k_channel *chan)
61 return ath9k_hw_private_ops(ah)->compute_pll_control(ah, chan);
64 static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
66 if (!ath9k_hw_private_ops(ah)->init_mode_gain_regs)
69 ath9k_hw_private_ops(ah)->init_mode_gain_regs(ah);
72 static void ath9k_hw_ani_cache_ini_regs(struct ath_hw *ah)
74 /* You will not have this callback if using the old ANI */
75 if (!ath9k_hw_private_ops(ah)->ani_cache_ini_regs)
78 ath9k_hw_private_ops(ah)->ani_cache_ini_regs(ah);
81 /********************/
82 /* Helper Functions */
83 /********************/
85 static void ath9k_hw_set_clockrate(struct ath_hw *ah)
87 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
88 struct ath_common *common = ath9k_hw_common(ah);
89 unsigned int clockrate;
91 /* AR9287 v1.3+ uses async FIFO and runs the MAC at 117 MHz */
92 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah))
94 else if (!ah->curchan) /* should really check for CCK instead */
95 clockrate = ATH9K_CLOCK_RATE_CCK;
96 else if (conf->channel->band == IEEE80211_BAND_2GHZ)
97 clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
98 else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
99 clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
101 clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
103 if (conf_is_ht40(conf))
107 if (IS_CHAN_HALF_RATE(ah->curchan))
109 if (IS_CHAN_QUARTER_RATE(ah->curchan))
113 common->clockrate = clockrate;
116 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
118 struct ath_common *common = ath9k_hw_common(ah);
120 return usecs * common->clockrate;
123 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
127 BUG_ON(timeout < AH_TIME_QUANTUM);
129 for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
130 if ((REG_READ(ah, reg) & mask) == val)
133 udelay(AH_TIME_QUANTUM);
136 ath_dbg(ath9k_hw_common(ah), ATH_DBG_ANY,
137 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
138 timeout, reg, REG_READ(ah, reg), mask, val);
142 EXPORT_SYMBOL(ath9k_hw_wait);
144 void ath9k_hw_write_array(struct ath_hw *ah, struct ar5416IniArray *array,
145 int column, unsigned int *writecnt)
149 ENABLE_REGWRITE_BUFFER(ah);
150 for (r = 0; r < array->ia_rows; r++) {
151 REG_WRITE(ah, INI_RA(array, r, 0),
152 INI_RA(array, r, column));
155 REGWRITE_BUFFER_FLUSH(ah);
158 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
163 for (i = 0, retval = 0; i < n; i++) {
164 retval = (retval << 1) | (val & 1);
170 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
172 u32 frameLen, u16 rateix,
175 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
181 case WLAN_RC_PHY_CCK:
182 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
185 numBits = frameLen << 3;
186 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
188 case WLAN_RC_PHY_OFDM:
189 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
190 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
191 numBits = OFDM_PLCP_BITS + (frameLen << 3);
192 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
193 txTime = OFDM_SIFS_TIME_QUARTER
194 + OFDM_PREAMBLE_TIME_QUARTER
195 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
196 } else if (ah->curchan &&
197 IS_CHAN_HALF_RATE(ah->curchan)) {
198 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
199 numBits = OFDM_PLCP_BITS + (frameLen << 3);
200 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
201 txTime = OFDM_SIFS_TIME_HALF +
202 OFDM_PREAMBLE_TIME_HALF
203 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
205 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
206 numBits = OFDM_PLCP_BITS + (frameLen << 3);
207 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
208 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
209 + (numSymbols * OFDM_SYMBOL_TIME);
213 ath_err(ath9k_hw_common(ah),
214 "Unknown phy %u (rate ix %u)\n", phy, rateix);
221 EXPORT_SYMBOL(ath9k_hw_computetxtime);
223 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
224 struct ath9k_channel *chan,
225 struct chan_centers *centers)
229 if (!IS_CHAN_HT40(chan)) {
230 centers->ctl_center = centers->ext_center =
231 centers->synth_center = chan->channel;
235 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
236 (chan->chanmode == CHANNEL_G_HT40PLUS)) {
237 centers->synth_center =
238 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
241 centers->synth_center =
242 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
246 centers->ctl_center =
247 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
248 /* 25 MHz spacing is supported by hw but not on upper layers */
249 centers->ext_center =
250 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
257 static void ath9k_hw_read_revisions(struct ath_hw *ah)
261 switch (ah->hw_version.devid) {
262 case AR5416_AR9100_DEVID:
263 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
265 case AR9300_DEVID_AR9330:
266 ah->hw_version.macVersion = AR_SREV_VERSION_9330;
267 if (ah->get_mac_revision) {
268 ah->hw_version.macRev = ah->get_mac_revision();
270 val = REG_READ(ah, AR_SREV);
271 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
274 case AR9300_DEVID_AR9340:
275 ah->hw_version.macVersion = AR_SREV_VERSION_9340;
276 val = REG_READ(ah, AR_SREV);
277 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
281 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
284 val = REG_READ(ah, AR_SREV);
285 ah->hw_version.macVersion =
286 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
287 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
289 if (AR_SREV_9462(ah))
290 ah->is_pciexpress = true;
292 ah->is_pciexpress = (val &
293 AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
295 if (!AR_SREV_9100(ah))
296 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
298 ah->hw_version.macRev = val & AR_SREV_REVISION;
300 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
301 ah->is_pciexpress = true;
305 /************************************/
306 /* HW Attach, Detach, Init Routines */
307 /************************************/
309 static void ath9k_hw_disablepcie(struct ath_hw *ah)
311 if (!AR_SREV_5416(ah))
314 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
315 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
316 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
317 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
318 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
319 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
320 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
321 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
322 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
324 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
327 static void ath9k_hw_aspm_init(struct ath_hw *ah)
329 struct ath_common *common = ath9k_hw_common(ah);
331 if (common->bus_ops->aspm_init)
332 common->bus_ops->aspm_init(common);
335 /* This should work for all families including legacy */
336 static bool ath9k_hw_chip_test(struct ath_hw *ah)
338 struct ath_common *common = ath9k_hw_common(ah);
339 u32 regAddr[2] = { AR_STA_ID0 };
341 static const u32 patternData[4] = {
342 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999
346 if (!AR_SREV_9300_20_OR_LATER(ah)) {
348 regAddr[1] = AR_PHY_BASE + (8 << 2);
352 for (i = 0; i < loop_max; i++) {
353 u32 addr = regAddr[i];
356 regHold[i] = REG_READ(ah, addr);
357 for (j = 0; j < 0x100; j++) {
358 wrData = (j << 16) | j;
359 REG_WRITE(ah, addr, wrData);
360 rdData = REG_READ(ah, addr);
361 if (rdData != wrData) {
363 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
364 addr, wrData, rdData);
368 for (j = 0; j < 4; j++) {
369 wrData = patternData[j];
370 REG_WRITE(ah, addr, wrData);
371 rdData = REG_READ(ah, addr);
372 if (wrData != rdData) {
374 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
375 addr, wrData, rdData);
379 REG_WRITE(ah, regAddr[i], regHold[i]);
386 static void ath9k_hw_init_config(struct ath_hw *ah)
390 ah->config.dma_beacon_response_time = 2;
391 ah->config.sw_beacon_response_time = 10;
392 ah->config.additional_swba_backoff = 0;
393 ah->config.ack_6mb = 0x0;
394 ah->config.cwm_ignore_extcca = 0;
395 ah->config.pcie_clock_req = 0;
396 ah->config.pcie_waen = 0;
397 ah->config.analog_shiftreg = 1;
398 ah->config.enable_ani = true;
400 for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
401 ah->config.spurchans[i][0] = AR_NO_SPUR;
402 ah->config.spurchans[i][1] = AR_NO_SPUR;
405 /* PAPRD needs some more work to be enabled */
406 ah->config.paprd_disable = 1;
408 ah->config.rx_intr_mitigation = true;
409 ah->config.pcieSerDesWrite = true;
412 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
413 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
414 * This means we use it for all AR5416 devices, and the few
415 * minor PCI AR9280 devices out there.
417 * Serialization is required because these devices do not handle
418 * well the case of two concurrent reads/writes due to the latency
419 * involved. During one read/write another read/write can be issued
420 * on another CPU while the previous read/write may still be working
421 * on our hardware, if we hit this case the hardware poops in a loop.
422 * We prevent this by serializing reads and writes.
424 * This issue is not present on PCI-Express devices or pre-AR5416
425 * devices (legacy, 802.11abg).
427 if (num_possible_cpus() > 1)
428 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
431 static void ath9k_hw_init_defaults(struct ath_hw *ah)
433 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
435 regulatory->country_code = CTRY_DEFAULT;
436 regulatory->power_limit = MAX_RATE_POWER;
438 ah->hw_version.magic = AR5416_MAGIC;
439 ah->hw_version.subvendorid = 0;
442 ah->sta_id1_defaults =
443 AR_STA_ID1_CRPT_MIC_ENABLE |
444 AR_STA_ID1_MCAST_KSRCH;
445 if (AR_SREV_9100(ah))
446 ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX;
447 ah->enable_32kHz_clock = DONT_USE_32KHZ;
448 ah->slottime = ATH9K_SLOT_TIME_9;
449 ah->globaltxtimeout = (u32) -1;
450 ah->power_mode = ATH9K_PM_UNDEFINED;
453 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
455 struct ath_common *common = ath9k_hw_common(ah);
459 static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
462 for (i = 0; i < 3; i++) {
463 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
465 common->macaddr[2 * i] = eeval >> 8;
466 common->macaddr[2 * i + 1] = eeval & 0xff;
468 if (sum == 0 || sum == 0xffff * 3)
469 return -EADDRNOTAVAIL;
474 static int ath9k_hw_post_init(struct ath_hw *ah)
476 struct ath_common *common = ath9k_hw_common(ah);
479 if (common->bus_ops->ath_bus_type != ATH_USB) {
480 if (!ath9k_hw_chip_test(ah))
484 if (!AR_SREV_9300_20_OR_LATER(ah)) {
485 ecode = ar9002_hw_rf_claim(ah);
490 ecode = ath9k_hw_eeprom_init(ah);
494 ath_dbg(ath9k_hw_common(ah), ATH_DBG_CONFIG,
495 "Eeprom VER: %d, REV: %d\n",
496 ah->eep_ops->get_eeprom_ver(ah),
497 ah->eep_ops->get_eeprom_rev(ah));
499 ecode = ath9k_hw_rf_alloc_ext_banks(ah);
501 ath_err(ath9k_hw_common(ah),
502 "Failed allocating banks for external radio\n");
503 ath9k_hw_rf_free_ext_banks(ah);
507 if (!AR_SREV_9100(ah) && !AR_SREV_9340(ah)) {
508 ath9k_hw_ani_setup(ah);
509 ath9k_hw_ani_init(ah);
515 static void ath9k_hw_attach_ops(struct ath_hw *ah)
517 if (AR_SREV_9300_20_OR_LATER(ah))
518 ar9003_hw_attach_ops(ah);
520 ar9002_hw_attach_ops(ah);
523 /* Called for all hardware families */
524 static int __ath9k_hw_init(struct ath_hw *ah)
526 struct ath_common *common = ath9k_hw_common(ah);
529 ath9k_hw_read_revisions(ah);
532 * Read back AR_WA into a permanent copy and set bits 14 and 17.
533 * We need to do this to avoid RMW of this register. We cannot
534 * read the reg when chip is asleep.
536 ah->WARegVal = REG_READ(ah, AR_WA);
537 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
538 AR_WA_ASPM_TIMER_BASED_DISABLE);
540 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
541 ath_err(common, "Couldn't reset chip\n");
545 if (AR_SREV_9462(ah))
546 ah->WARegVal &= ~AR_WA_D3_L1_DISABLE;
548 ath9k_hw_init_defaults(ah);
549 ath9k_hw_init_config(ah);
551 ath9k_hw_attach_ops(ah);
553 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
554 ath_err(common, "Couldn't wakeup chip\n");
558 if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
559 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
560 ((AR_SREV_9160(ah) || AR_SREV_9280(ah)) &&
561 !ah->is_pciexpress)) {
562 ah->config.serialize_regmode =
565 ah->config.serialize_regmode =
570 ath_dbg(common, ATH_DBG_RESET, "serialize_regmode is %d\n",
571 ah->config.serialize_regmode);
573 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
574 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
576 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
578 switch (ah->hw_version.macVersion) {
579 case AR_SREV_VERSION_5416_PCI:
580 case AR_SREV_VERSION_5416_PCIE:
581 case AR_SREV_VERSION_9160:
582 case AR_SREV_VERSION_9100:
583 case AR_SREV_VERSION_9280:
584 case AR_SREV_VERSION_9285:
585 case AR_SREV_VERSION_9287:
586 case AR_SREV_VERSION_9271:
587 case AR_SREV_VERSION_9300:
588 case AR_SREV_VERSION_9330:
589 case AR_SREV_VERSION_9485:
590 case AR_SREV_VERSION_9340:
591 case AR_SREV_VERSION_9462:
595 "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
596 ah->hw_version.macVersion, ah->hw_version.macRev);
600 if (AR_SREV_9271(ah) || AR_SREV_9100(ah) || AR_SREV_9340(ah) ||
602 ah->is_pciexpress = false;
604 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
605 ath9k_hw_init_cal_settings(ah);
607 ah->ani_function = ATH9K_ANI_ALL;
608 if (AR_SREV_9280_20_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah))
609 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
610 if (!AR_SREV_9300_20_OR_LATER(ah))
611 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
613 ath9k_hw_init_mode_regs(ah);
615 if (!ah->is_pciexpress)
616 ath9k_hw_disablepcie(ah);
618 if (!AR_SREV_9300_20_OR_LATER(ah))
619 ar9002_hw_cck_chan14_spread(ah);
621 r = ath9k_hw_post_init(ah);
625 ath9k_hw_init_mode_gain_regs(ah);
626 r = ath9k_hw_fill_cap_info(ah);
630 if (ah->is_pciexpress)
631 ath9k_hw_aspm_init(ah);
633 r = ath9k_hw_init_macaddr(ah);
635 ath_err(common, "Failed to initialize MAC address\n");
639 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
640 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
642 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
644 if (AR_SREV_9330(ah))
645 ah->bb_watchdog_timeout_ms = 85;
647 ah->bb_watchdog_timeout_ms = 25;
649 common->state = ATH_HW_INITIALIZED;
654 int ath9k_hw_init(struct ath_hw *ah)
657 struct ath_common *common = ath9k_hw_common(ah);
659 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
660 switch (ah->hw_version.devid) {
661 case AR5416_DEVID_PCI:
662 case AR5416_DEVID_PCIE:
663 case AR5416_AR9100_DEVID:
664 case AR9160_DEVID_PCI:
665 case AR9280_DEVID_PCI:
666 case AR9280_DEVID_PCIE:
667 case AR9285_DEVID_PCIE:
668 case AR9287_DEVID_PCI:
669 case AR9287_DEVID_PCIE:
670 case AR2427_DEVID_PCIE:
671 case AR9300_DEVID_PCIE:
672 case AR9300_DEVID_AR9485_PCIE:
673 case AR9300_DEVID_AR9330:
674 case AR9300_DEVID_AR9340:
675 case AR9300_DEVID_AR9580:
676 case AR9300_DEVID_AR9462:
679 if (common->bus_ops->ath_bus_type == ATH_USB)
681 ath_err(common, "Hardware device ID 0x%04x not supported\n",
682 ah->hw_version.devid);
686 ret = __ath9k_hw_init(ah);
689 "Unable to initialize hardware; initialization status: %d\n",
696 EXPORT_SYMBOL(ath9k_hw_init);
698 static void ath9k_hw_init_qos(struct ath_hw *ah)
700 ENABLE_REGWRITE_BUFFER(ah);
702 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
703 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
705 REG_WRITE(ah, AR_QOS_NO_ACK,
706 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
707 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
708 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
710 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
711 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
712 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
713 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
714 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
716 REGWRITE_BUFFER_FLUSH(ah);
719 u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
721 REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
723 REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
725 while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0)
728 return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
730 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
732 static void ath9k_hw_init_pll(struct ath_hw *ah,
733 struct ath9k_channel *chan)
737 if (AR_SREV_9485(ah)) {
739 /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */
740 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
741 AR_CH0_BB_DPLL2_PLL_PWD, 0x1);
742 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
743 AR_CH0_DPLL2_KD, 0x40);
744 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
745 AR_CH0_DPLL2_KI, 0x4);
747 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
748 AR_CH0_BB_DPLL1_REFDIV, 0x5);
749 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
750 AR_CH0_BB_DPLL1_NINI, 0x58);
751 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
752 AR_CH0_BB_DPLL1_NFRAC, 0x0);
754 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
755 AR_CH0_BB_DPLL2_OUTDIV, 0x1);
756 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
757 AR_CH0_BB_DPLL2_LOCAL_PLL, 0x1);
758 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
759 AR_CH0_BB_DPLL2_EN_NEGTRIG, 0x1);
761 /* program BB PLL phase_shift to 0x6 */
762 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
763 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x6);
765 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
766 AR_CH0_BB_DPLL2_PLL_PWD, 0x0);
768 } else if (AR_SREV_9330(ah)) {
769 u32 ddr_dpll2, pll_control2, kd;
771 if (ah->is_clk_25mhz) {
772 ddr_dpll2 = 0x18e82f01;
773 pll_control2 = 0xe04a3d;
776 ddr_dpll2 = 0x19e82f01;
777 pll_control2 = 0x886666;
781 /* program DDR PLL ki and kd value */
782 REG_WRITE(ah, AR_CH0_DDR_DPLL2, ddr_dpll2);
784 /* program DDR PLL phase_shift */
785 REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3,
786 AR_CH0_DPLL3_PHASE_SHIFT, 0x1);
788 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
791 /* program refdiv, nint, frac to RTC register */
792 REG_WRITE(ah, AR_RTC_PLL_CONTROL2, pll_control2);
794 /* program BB PLL kd and ki value */
795 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KD, kd);
796 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KI, 0x06);
798 /* program BB PLL phase_shift */
799 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
800 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x1);
801 } else if (AR_SREV_9340(ah)) {
802 u32 regval, pll2_divint, pll2_divfrac, refdiv;
804 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
807 REG_SET_BIT(ah, AR_PHY_PLL_MODE, 0x1 << 16);
810 if (ah->is_clk_25mhz) {
812 pll2_divfrac = 0x1eb85;
820 regval = REG_READ(ah, AR_PHY_PLL_MODE);
821 regval |= (0x1 << 16);
822 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
825 REG_WRITE(ah, AR_PHY_PLL_CONTROL, (refdiv << 27) |
826 (pll2_divint << 18) | pll2_divfrac);
829 regval = REG_READ(ah, AR_PHY_PLL_MODE);
830 regval = (regval & 0x80071fff) | (0x1 << 30) | (0x1 << 13) |
831 (0x4 << 26) | (0x18 << 19);
832 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
833 REG_WRITE(ah, AR_PHY_PLL_MODE,
834 REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff);
838 pll = ath9k_hw_compute_pll_control(ah, chan);
840 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
842 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah))
845 /* Switch the core clock for ar9271 to 117Mhz */
846 if (AR_SREV_9271(ah)) {
848 REG_WRITE(ah, 0x50040, 0x304);
851 udelay(RTC_PLL_SETTLE_DELAY);
853 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
855 if (AR_SREV_9340(ah)) {
856 if (ah->is_clk_25mhz) {
857 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x17c << 1);
858 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f3d7);
859 REG_WRITE(ah, AR_SLP32_INC, 0x0001e7ae);
861 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x261 << 1);
862 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f400);
863 REG_WRITE(ah, AR_SLP32_INC, 0x0001e800);
869 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
870 enum nl80211_iftype opmode)
872 u32 sync_default = AR_INTR_SYNC_DEFAULT;
873 u32 imr_reg = AR_IMR_TXERR |
879 if (AR_SREV_9340(ah))
880 sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
882 if (AR_SREV_9300_20_OR_LATER(ah)) {
883 imr_reg |= AR_IMR_RXOK_HP;
884 if (ah->config.rx_intr_mitigation)
885 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
887 imr_reg |= AR_IMR_RXOK_LP;
890 if (ah->config.rx_intr_mitigation)
891 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
893 imr_reg |= AR_IMR_RXOK;
896 if (ah->config.tx_intr_mitigation)
897 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
899 imr_reg |= AR_IMR_TXOK;
901 if (opmode == NL80211_IFTYPE_AP)
902 imr_reg |= AR_IMR_MIB;
904 ENABLE_REGWRITE_BUFFER(ah);
906 REG_WRITE(ah, AR_IMR, imr_reg);
907 ah->imrs2_reg |= AR_IMR_S2_GTT;
908 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
910 if (!AR_SREV_9100(ah)) {
911 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
912 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default);
913 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
916 REGWRITE_BUFFER_FLUSH(ah);
918 if (AR_SREV_9300_20_OR_LATER(ah)) {
919 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
920 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
921 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
922 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
926 static void ath9k_hw_set_sifs_time(struct ath_hw *ah, u32 us)
928 u32 val = ath9k_hw_mac_to_clks(ah, us - 2);
929 val = min(val, (u32) 0xFFFF);
930 REG_WRITE(ah, AR_D_GBL_IFS_SIFS, val);
933 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
935 u32 val = ath9k_hw_mac_to_clks(ah, us);
936 val = min(val, (u32) 0xFFFF);
937 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
940 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
942 u32 val = ath9k_hw_mac_to_clks(ah, us);
943 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
944 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
947 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
949 u32 val = ath9k_hw_mac_to_clks(ah, us);
950 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
951 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
954 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
957 ath_dbg(ath9k_hw_common(ah), ATH_DBG_XMIT,
958 "bad global tx timeout %u\n", tu);
959 ah->globaltxtimeout = (u32) -1;
962 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
963 ah->globaltxtimeout = tu;
968 void ath9k_hw_init_global_settings(struct ath_hw *ah)
970 struct ath_common *common = ath9k_hw_common(ah);
971 struct ieee80211_conf *conf = &common->hw->conf;
972 const struct ath9k_channel *chan = ah->curchan;
973 int acktimeout, ctstimeout;
976 int rx_lat = 0, tx_lat = 0, eifs = 0;
979 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
985 if (ah->misc_mode != 0)
986 REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
988 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
994 if (IS_CHAN_HALF_RATE(chan)) {
998 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1003 } else if (IS_CHAN_QUARTER_RATE(chan)) {
1005 rx_lat = (rx_lat * 4) - 1;
1007 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1013 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1014 eifs = AR_D_GBL_IFS_EIFS_ASYNC_FIFO;
1015 reg = AR_USEC_ASYNC_FIFO;
1017 eifs = REG_READ(ah, AR_D_GBL_IFS_EIFS)/
1019 reg = REG_READ(ah, AR_USEC);
1021 rx_lat = MS(reg, AR_USEC_RX_LAT);
1022 tx_lat = MS(reg, AR_USEC_TX_LAT);
1024 slottime = ah->slottime;
1025 if (IS_CHAN_5GHZ(chan))
1031 /* As defined by IEEE 802.11-2007 17.3.8.6 */
1032 acktimeout = slottime + sifstime + 3 * ah->coverage_class;
1033 ctstimeout = acktimeout;
1036 * Workaround for early ACK timeouts, add an offset to match the
1037 * initval's 64us ack timeout value.
1038 * This was initially only meant to work around an issue with delayed
1039 * BA frames in some implementations, but it has been found to fix ACK
1040 * timeout issues in other cases as well.
1042 if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
1043 acktimeout += 64 - sifstime - ah->slottime;
1045 ath9k_hw_set_sifs_time(ah, sifstime);
1046 ath9k_hw_setslottime(ah, slottime);
1047 ath9k_hw_set_ack_timeout(ah, acktimeout);
1048 ath9k_hw_set_cts_timeout(ah, ctstimeout);
1049 if (ah->globaltxtimeout != (u32) -1)
1050 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
1052 REG_WRITE(ah, AR_D_GBL_IFS_EIFS, ath9k_hw_mac_to_clks(ah, eifs));
1053 REG_RMW(ah, AR_USEC,
1054 (common->clockrate - 1) |
1055 SM(rx_lat, AR_USEC_RX_LAT) |
1056 SM(tx_lat, AR_USEC_TX_LAT),
1057 AR_USEC_TX_LAT | AR_USEC_RX_LAT | AR_USEC_USEC);
1060 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
1062 void ath9k_hw_deinit(struct ath_hw *ah)
1064 struct ath_common *common = ath9k_hw_common(ah);
1066 if (common->state < ATH_HW_INITIALIZED)
1069 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
1072 ath9k_hw_rf_free_ext_banks(ah);
1074 EXPORT_SYMBOL(ath9k_hw_deinit);
1080 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
1082 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
1084 if (IS_CHAN_B(chan))
1086 else if (IS_CHAN_G(chan))
1094 /****************************************/
1095 /* Reset and Channel Switching Routines */
1096 /****************************************/
1098 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
1100 struct ath_common *common = ath9k_hw_common(ah);
1102 ENABLE_REGWRITE_BUFFER(ah);
1105 * set AHB_MODE not to do cacheline prefetches
1107 if (!AR_SREV_9300_20_OR_LATER(ah))
1108 REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
1111 * let mac dma reads be in 128 byte chunks
1113 REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK);
1115 REGWRITE_BUFFER_FLUSH(ah);
1118 * Restore TX Trigger Level to its pre-reset value.
1119 * The initial value depends on whether aggregation is enabled, and is
1120 * adjusted whenever underruns are detected.
1122 if (!AR_SREV_9300_20_OR_LATER(ah))
1123 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
1125 ENABLE_REGWRITE_BUFFER(ah);
1128 * let mac dma writes be in 128 byte chunks
1130 REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK);
1133 * Setup receive FIFO threshold to hold off TX activities
1135 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
1137 if (AR_SREV_9300_20_OR_LATER(ah)) {
1138 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
1139 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
1141 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
1142 ah->caps.rx_status_len);
1146 * reduce the number of usable entries in PCU TXBUF to avoid
1147 * wrap around issues.
1149 if (AR_SREV_9285(ah)) {
1150 /* For AR9285 the number of Fifos are reduced to half.
1151 * So set the usable tx buf size also to half to
1152 * avoid data/delimiter underruns
1154 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1155 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
1156 } else if (!AR_SREV_9271(ah)) {
1157 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1158 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
1161 REGWRITE_BUFFER_FLUSH(ah);
1163 if (AR_SREV_9300_20_OR_LATER(ah))
1164 ath9k_hw_reset_txstatus_ring(ah);
1167 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
1169 u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC;
1170 u32 set = AR_STA_ID1_KSRCH_MODE;
1173 case NL80211_IFTYPE_ADHOC:
1174 case NL80211_IFTYPE_MESH_POINT:
1175 set |= AR_STA_ID1_ADHOC;
1176 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1178 case NL80211_IFTYPE_AP:
1179 set |= AR_STA_ID1_STA_AP;
1181 case NL80211_IFTYPE_STATION:
1182 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1185 if (!ah->is_monitoring)
1189 REG_RMW(ah, AR_STA_ID1, set, mask);
1192 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
1193 u32 *coef_mantissa, u32 *coef_exponent)
1195 u32 coef_exp, coef_man;
1197 for (coef_exp = 31; coef_exp > 0; coef_exp--)
1198 if ((coef_scaled >> coef_exp) & 0x1)
1201 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1203 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1205 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1206 *coef_exponent = coef_exp - 16;
1209 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1214 if (AR_SREV_9100(ah)) {
1215 REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK,
1216 AR_RTC_DERIVED_CLK_PERIOD, 1);
1217 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1220 ENABLE_REGWRITE_BUFFER(ah);
1222 if (AR_SREV_9300_20_OR_LATER(ah)) {
1223 REG_WRITE(ah, AR_WA, ah->WARegVal);
1227 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1228 AR_RTC_FORCE_WAKE_ON_INT);
1230 if (AR_SREV_9100(ah)) {
1231 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1232 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1234 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1236 (AR_INTR_SYNC_LOCAL_TIMEOUT |
1237 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1239 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1242 if (!AR_SREV_9300_20_OR_LATER(ah))
1244 REG_WRITE(ah, AR_RC, val);
1246 } else if (!AR_SREV_9300_20_OR_LATER(ah))
1247 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1249 rst_flags = AR_RTC_RC_MAC_WARM;
1250 if (type == ATH9K_RESET_COLD)
1251 rst_flags |= AR_RTC_RC_MAC_COLD;
1254 if (AR_SREV_9330(ah)) {
1259 * call external reset function to reset WMAC if:
1260 * - doing a cold reset
1261 * - we have pending frames in the TX queues
1264 for (i = 0; i < AR_NUM_QCU; i++) {
1265 npend = ath9k_hw_numtxpending(ah, i);
1270 if (ah->external_reset &&
1271 (npend || type == ATH9K_RESET_COLD)) {
1274 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
1275 "reset MAC via external reset\n");
1277 reset_err = ah->external_reset();
1279 ath_err(ath9k_hw_common(ah),
1280 "External reset failed, err=%d\n",
1285 REG_WRITE(ah, AR_RTC_RESET, 1);
1289 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1291 REGWRITE_BUFFER_FLUSH(ah);
1295 REG_WRITE(ah, AR_RTC_RC, 0);
1296 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1297 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
1298 "RTC stuck in MAC reset\n");
1302 if (!AR_SREV_9100(ah))
1303 REG_WRITE(ah, AR_RC, 0);
1305 if (AR_SREV_9100(ah))
1311 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1313 ENABLE_REGWRITE_BUFFER(ah);
1315 if (AR_SREV_9300_20_OR_LATER(ah)) {
1316 REG_WRITE(ah, AR_WA, ah->WARegVal);
1320 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1321 AR_RTC_FORCE_WAKE_ON_INT);
1323 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1324 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1326 REG_WRITE(ah, AR_RTC_RESET, 0);
1328 REGWRITE_BUFFER_FLUSH(ah);
1330 if (!AR_SREV_9300_20_OR_LATER(ah))
1333 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1334 REG_WRITE(ah, AR_RC, 0);
1336 REG_WRITE(ah, AR_RTC_RESET, 1);
1338 if (!ath9k_hw_wait(ah,
1343 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
1344 "RTC not waking up\n");
1348 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1351 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1355 if (AR_SREV_9300_20_OR_LATER(ah)) {
1356 REG_WRITE(ah, AR_WA, ah->WARegVal);
1360 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1361 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1364 case ATH9K_RESET_POWER_ON:
1365 ret = ath9k_hw_set_reset_power_on(ah);
1367 case ATH9K_RESET_WARM:
1368 case ATH9K_RESET_COLD:
1369 ret = ath9k_hw_set_reset(ah, type);
1375 if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
1376 REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2);
1381 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1382 struct ath9k_channel *chan)
1384 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1385 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1387 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1390 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1393 ah->chip_fullsleep = false;
1394 ath9k_hw_init_pll(ah, chan);
1395 ath9k_hw_set_rfmode(ah, chan);
1400 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1401 struct ath9k_channel *chan)
1403 struct ath_common *common = ath9k_hw_common(ah);
1406 bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
1407 bool band_switch, mode_diff;
1410 band_switch = (chan->channelFlags & (CHANNEL_2GHZ | CHANNEL_5GHZ)) !=
1411 (ah->curchan->channelFlags & (CHANNEL_2GHZ |
1413 mode_diff = (chan->chanmode != ah->curchan->chanmode);
1415 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1416 if (ath9k_hw_numtxpending(ah, qnum)) {
1417 ath_dbg(common, ATH_DBG_QUEUE,
1418 "Transmit frames pending on queue %d\n", qnum);
1423 if (!ath9k_hw_rfbus_req(ah)) {
1424 ath_err(common, "Could not kill baseband RX\n");
1428 if (edma && (band_switch || mode_diff)) {
1429 ath9k_hw_mark_phy_inactive(ah);
1432 ath9k_hw_init_pll(ah, NULL);
1434 if (ath9k_hw_fast_chan_change(ah, chan, &ini_reloaded)) {
1435 ath_err(common, "Failed to do fast channel change\n");
1440 ath9k_hw_set_channel_regs(ah, chan);
1442 r = ath9k_hw_rf_set_freq(ah, chan);
1444 ath_err(common, "Failed to set channel\n");
1447 ath9k_hw_set_clockrate(ah);
1448 ath9k_hw_apply_txpower(ah, chan);
1449 ath9k_hw_rfbus_done(ah);
1451 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1452 ath9k_hw_set_delta_slope(ah, chan);
1454 ath9k_hw_spur_mitigate_freq(ah, chan);
1456 if (edma && (band_switch || mode_diff)) {
1457 ah->ah_flags |= AH_FASTCC;
1458 if (band_switch || ini_reloaded)
1459 ah->eep_ops->set_board_values(ah, chan);
1461 ath9k_hw_init_bb(ah, chan);
1463 if (band_switch || ini_reloaded)
1464 ath9k_hw_init_cal(ah, chan);
1465 ah->ah_flags &= ~AH_FASTCC;
1471 static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
1473 u32 gpio_mask = ah->gpio_mask;
1476 for (i = 0; gpio_mask; i++, gpio_mask >>= 1) {
1477 if (!(gpio_mask & 1))
1480 ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
1481 ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
1485 bool ath9k_hw_check_alive(struct ath_hw *ah)
1490 if (AR_SREV_9285_12_OR_LATER(ah))
1494 reg = REG_READ(ah, AR_OBS_BUS_1);
1496 if ((reg & 0x7E7FFFEF) == 0x00702400)
1499 switch (reg & 0x7E000B00) {
1507 } while (count-- > 0);
1511 EXPORT_SYMBOL(ath9k_hw_check_alive);
1513 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1514 struct ath9k_hw_cal_data *caldata, bool bChannelChange)
1516 struct ath_common *common = ath9k_hw_common(ah);
1518 struct ath9k_channel *curchan = ah->curchan;
1523 bool allow_fbs = false;
1525 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1528 if (curchan && !ah->chip_fullsleep)
1529 ath9k_hw_getnf(ah, curchan);
1531 ah->caldata = caldata;
1533 (chan->channel != caldata->channel ||
1534 (chan->channelFlags & ~CHANNEL_CW_INT) !=
1535 (caldata->channelFlags & ~CHANNEL_CW_INT))) {
1536 /* Operating channel changed, reset channel calibration data */
1537 memset(caldata, 0, sizeof(*caldata));
1538 ath9k_init_nfcal_hist_buffer(ah, chan);
1540 ah->noise = ath9k_hw_getchan_noise(ah, chan);
1542 if (AR_SREV_9280(ah) && common->bus_ops->ath_bus_type == ATH_PCI)
1543 bChannelChange = false;
1546 caldata->done_txiqcal_once &&
1547 caldata->done_txclcal_once &&
1548 caldata->rtt_hist.num_readings)
1551 if (bChannelChange &&
1552 (ah->chip_fullsleep != true) &&
1553 (ah->curchan != NULL) &&
1554 (chan->channel != ah->curchan->channel) &&
1556 ((chan->channelFlags & CHANNEL_ALL) ==
1557 (ah->curchan->channelFlags & CHANNEL_ALL)))) {
1558 if (ath9k_hw_channel_change(ah, chan)) {
1559 ath9k_hw_loadnf(ah, ah->curchan);
1560 ath9k_hw_start_nfcal(ah, true);
1561 if (AR_SREV_9271(ah))
1562 ar9002_hw_load_ani_reg(ah, chan);
1567 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1568 if (saveDefAntenna == 0)
1571 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1573 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1574 if (AR_SREV_9100(ah) ||
1575 (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)))
1576 tsf = ath9k_hw_gettsf64(ah);
1578 saveLedState = REG_READ(ah, AR_CFG_LED) &
1579 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1580 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1582 ath9k_hw_mark_phy_inactive(ah);
1584 ah->paprd_table_write_done = false;
1586 /* Only required on the first reset */
1587 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1589 AR9271_RESET_POWER_DOWN_CONTROL,
1590 AR9271_RADIO_RF_RST);
1594 if (!ath9k_hw_chip_reset(ah, chan)) {
1595 ath_err(common, "Chip reset failed\n");
1599 /* Only required on the first reset */
1600 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1601 ah->htc_reset_init = false;
1603 AR9271_RESET_POWER_DOWN_CONTROL,
1604 AR9271_GATE_MAC_CTL);
1610 ath9k_hw_settsf64(ah, tsf);
1612 if (AR_SREV_9280_20_OR_LATER(ah))
1613 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1615 if (!AR_SREV_9300_20_OR_LATER(ah))
1616 ar9002_hw_enable_async_fifo(ah);
1618 r = ath9k_hw_process_ini(ah, chan);
1623 * Some AR91xx SoC devices frequently fail to accept TSF writes
1624 * right after the chip reset. When that happens, write a new
1625 * value after the initvals have been applied, with an offset
1626 * based on measured time difference
1628 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1630 ath9k_hw_settsf64(ah, tsf);
1633 /* Setup MFP options for CCMP */
1634 if (AR_SREV_9280_20_OR_LATER(ah)) {
1635 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1636 * frames when constructing CCMP AAD. */
1637 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1639 ah->sw_mgmt_crypto = false;
1640 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1641 /* Disable hardware crypto for management frames */
1642 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1643 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1644 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1645 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1646 ah->sw_mgmt_crypto = true;
1648 ah->sw_mgmt_crypto = true;
1650 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1651 ath9k_hw_set_delta_slope(ah, chan);
1653 ath9k_hw_spur_mitigate_freq(ah, chan);
1654 ah->eep_ops->set_board_values(ah, chan);
1656 ENABLE_REGWRITE_BUFFER(ah);
1658 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1659 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
1661 | AR_STA_ID1_RTS_USE_DEF
1663 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1664 | ah->sta_id1_defaults);
1665 ath_hw_setbssidmask(common);
1666 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1667 ath9k_hw_write_associd(ah);
1668 REG_WRITE(ah, AR_ISR, ~0);
1669 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1671 REGWRITE_BUFFER_FLUSH(ah);
1673 ath9k_hw_set_operating_mode(ah, ah->opmode);
1675 r = ath9k_hw_rf_set_freq(ah, chan);
1679 ath9k_hw_set_clockrate(ah);
1681 ENABLE_REGWRITE_BUFFER(ah);
1683 for (i = 0; i < AR_NUM_DCU; i++)
1684 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1686 REGWRITE_BUFFER_FLUSH(ah);
1689 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
1690 ath9k_hw_resettxqueue(ah, i);
1692 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1693 ath9k_hw_ani_cache_ini_regs(ah);
1694 ath9k_hw_init_qos(ah);
1696 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1697 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
1699 ath9k_hw_init_global_settings(ah);
1701 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1702 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
1703 AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
1704 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
1705 AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
1706 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1707 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
1710 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
1712 ath9k_hw_set_dma(ah);
1714 REG_WRITE(ah, AR_OBS, 8);
1716 if (ah->config.rx_intr_mitigation) {
1717 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
1718 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
1721 if (ah->config.tx_intr_mitigation) {
1722 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1723 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1726 ath9k_hw_init_bb(ah, chan);
1729 caldata->done_txiqcal_once = false;
1730 caldata->done_txclcal_once = false;
1731 caldata->rtt_hist.num_readings = 0;
1733 if (!ath9k_hw_init_cal(ah, chan))
1736 ath9k_hw_loadnf(ah, chan);
1737 ath9k_hw_start_nfcal(ah, true);
1739 ENABLE_REGWRITE_BUFFER(ah);
1741 ath9k_hw_restore_chainmask(ah);
1742 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1744 REGWRITE_BUFFER_FLUSH(ah);
1747 * For big endian systems turn on swapping for descriptors
1749 if (AR_SREV_9100(ah)) {
1751 mask = REG_READ(ah, AR_CFG);
1752 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1753 ath_dbg(common, ATH_DBG_RESET,
1754 "CFG Byte Swap Set 0x%x\n", mask);
1757 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1758 REG_WRITE(ah, AR_CFG, mask);
1759 ath_dbg(common, ATH_DBG_RESET,
1760 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
1763 if (common->bus_ops->ath_bus_type == ATH_USB) {
1764 /* Configure AR9271 target WLAN */
1765 if (AR_SREV_9271(ah))
1766 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1768 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1771 else if (AR_SREV_9330(ah) || AR_SREV_9340(ah))
1772 REG_RMW(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB, 0);
1774 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1778 if (ah->btcoex_hw.enabled)
1779 ath9k_hw_btcoex_enable(ah);
1781 if (AR_SREV_9300_20_OR_LATER(ah)) {
1782 ar9003_hw_bb_watchdog_config(ah);
1784 ar9003_hw_disable_phy_restart(ah);
1787 ath9k_hw_apply_gpio_override(ah);
1791 EXPORT_SYMBOL(ath9k_hw_reset);
1793 /******************************/
1794 /* Power Management (Chipset) */
1795 /******************************/
1798 * Notify Power Mgt is disabled in self-generated frames.
1799 * If requested, force chip to sleep.
1801 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
1803 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1805 if (AR_SREV_9462(ah)) {
1806 REG_WRITE(ah, AR_TIMER_MODE,
1807 REG_READ(ah, AR_TIMER_MODE) & 0xFFFFFF00);
1808 REG_WRITE(ah, AR_NDP2_TIMER_MODE, REG_READ(ah,
1809 AR_NDP2_TIMER_MODE) & 0xFFFFFF00);
1810 REG_WRITE(ah, AR_SLP32_INC,
1811 REG_READ(ah, AR_SLP32_INC) & 0xFFF00000);
1812 /* xxx Required for WLAN only case ? */
1813 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, 0);
1818 * Clear the RTC force wake bit to allow the
1819 * mac to go to sleep.
1821 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
1823 if (AR_SREV_9462(ah))
1826 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1827 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1829 /* Shutdown chip. Active low */
1830 if (!AR_SREV_5416(ah) &&
1831 !AR_SREV_9271(ah) && !AR_SREV_9462_10(ah)) {
1832 REG_CLR_BIT(ah, AR_RTC_RESET, AR_RTC_RESET_EN);
1837 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
1838 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1842 * Notify Power Management is enabled in self-generating
1843 * frames. If request, set power mode of chip to
1844 * auto/normal. Duration in units of 128us (1/8 TU).
1846 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
1850 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1852 struct ath9k_hw_capabilities *pCap = &ah->caps;
1854 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1855 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1856 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1857 AR_RTC_FORCE_WAKE_ON_INT);
1860 /* When chip goes into network sleep, it could be waken
1861 * up by MCI_INT interrupt caused by BT's HW messages
1862 * (LNA_xxx, CONT_xxx) which chould be in a very fast
1863 * rate (~100us). This will cause chip to leave and
1864 * re-enter network sleep mode frequently, which in
1865 * consequence will have WLAN MCI HW to generate lots of
1866 * SYS_WAKING and SYS_SLEEPING messages which will make
1867 * BT CPU to busy to process.
1869 if (AR_SREV_9462(ah)) {
1870 val = REG_READ(ah, AR_MCI_INTERRUPT_RX_MSG_EN) &
1871 ~AR_MCI_INTERRUPT_RX_HW_MSG_MASK;
1872 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, val);
1875 * Clear the RTC force wake bit to allow the
1876 * mac to go to sleep.
1878 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1879 AR_RTC_FORCE_WAKE_EN);
1881 if (AR_SREV_9462(ah))
1886 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
1887 if (AR_SREV_9300_20_OR_LATER(ah))
1888 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1891 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
1896 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
1897 if (AR_SREV_9300_20_OR_LATER(ah)) {
1898 REG_WRITE(ah, AR_WA, ah->WARegVal);
1903 if ((REG_READ(ah, AR_RTC_STATUS) &
1904 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1905 if (ath9k_hw_set_reset_reg(ah,
1906 ATH9K_RESET_POWER_ON) != true) {
1909 if (!AR_SREV_9300_20_OR_LATER(ah))
1910 ath9k_hw_init_pll(ah, NULL);
1912 if (AR_SREV_9100(ah))
1913 REG_SET_BIT(ah, AR_RTC_RESET,
1916 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1917 AR_RTC_FORCE_WAKE_EN);
1920 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1921 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1922 if (val == AR_RTC_STATUS_ON)
1925 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1926 AR_RTC_FORCE_WAKE_EN);
1929 ath_err(ath9k_hw_common(ah),
1930 "Failed to wakeup in %uus\n",
1931 POWER_UP_TIME / 20);
1936 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1941 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
1943 struct ath_common *common = ath9k_hw_common(ah);
1944 struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
1945 int status = true, setChip = true;
1946 static const char *modes[] = {
1953 if (ah->power_mode == mode)
1956 ath_dbg(common, ATH_DBG_RESET, "%s -> %s\n",
1957 modes[ah->power_mode], modes[mode]);
1960 case ATH9K_PM_AWAKE:
1961 status = ath9k_hw_set_power_awake(ah, setChip);
1963 if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
1964 REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2);
1967 case ATH9K_PM_FULL_SLEEP:
1969 if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) {
1970 if (ar9003_mci_state(ah, MCI_STATE_ENABLE, NULL) &&
1971 (mci->bt_state != MCI_BT_SLEEP) &&
1972 !mci->halted_bt_gpm) {
1973 ath_dbg(common, ATH_DBG_MCI, "MCI halt BT GPM"
1975 ar9003_mci_send_coex_halt_bt_gpm(ah,
1980 REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2);
1983 ath9k_set_power_sleep(ah, setChip);
1984 ah->chip_fullsleep = true;
1986 case ATH9K_PM_NETWORK_SLEEP:
1988 if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)
1989 REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2);
1991 ath9k_set_power_network_sleep(ah, setChip);
1994 ath_err(common, "Unknown power mode %u\n", mode);
1997 ah->power_mode = mode;
2000 * XXX: If this warning never comes up after a while then
2001 * simply keep the ATH_DBG_WARN_ON_ONCE() but make
2002 * ath9k_hw_setpower() return type void.
2005 if (!(ah->ah_flags & AH_UNPLUGGED))
2006 ATH_DBG_WARN_ON_ONCE(!status);
2010 EXPORT_SYMBOL(ath9k_hw_setpower);
2012 /*******************/
2013 /* Beacon Handling */
2014 /*******************/
2016 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
2020 ENABLE_REGWRITE_BUFFER(ah);
2022 switch (ah->opmode) {
2023 case NL80211_IFTYPE_ADHOC:
2024 case NL80211_IFTYPE_MESH_POINT:
2025 REG_SET_BIT(ah, AR_TXCFG,
2026 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
2027 REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon +
2028 TU_TO_USEC(ah->atim_window ? ah->atim_window : 1));
2029 flags |= AR_NDP_TIMER_EN;
2030 case NL80211_IFTYPE_AP:
2031 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
2032 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
2033 TU_TO_USEC(ah->config.dma_beacon_response_time));
2034 REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
2035 TU_TO_USEC(ah->config.sw_beacon_response_time));
2037 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
2040 ath_dbg(ath9k_hw_common(ah), ATH_DBG_BEACON,
2041 "%s: unsupported opmode: %d\n",
2042 __func__, ah->opmode);
2047 REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
2048 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
2049 REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
2050 REG_WRITE(ah, AR_NDP_PERIOD, beacon_period);
2052 REGWRITE_BUFFER_FLUSH(ah);
2054 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
2056 EXPORT_SYMBOL(ath9k_hw_beaconinit);
2058 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
2059 const struct ath9k_beacon_state *bs)
2061 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
2062 struct ath9k_hw_capabilities *pCap = &ah->caps;
2063 struct ath_common *common = ath9k_hw_common(ah);
2065 ENABLE_REGWRITE_BUFFER(ah);
2067 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
2069 REG_WRITE(ah, AR_BEACON_PERIOD,
2070 TU_TO_USEC(bs->bs_intval));
2071 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
2072 TU_TO_USEC(bs->bs_intval));
2074 REGWRITE_BUFFER_FLUSH(ah);
2076 REG_RMW_FIELD(ah, AR_RSSI_THR,
2077 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
2079 beaconintval = bs->bs_intval;
2081 if (bs->bs_sleepduration > beaconintval)
2082 beaconintval = bs->bs_sleepduration;
2084 dtimperiod = bs->bs_dtimperiod;
2085 if (bs->bs_sleepduration > dtimperiod)
2086 dtimperiod = bs->bs_sleepduration;
2088 if (beaconintval == dtimperiod)
2089 nextTbtt = bs->bs_nextdtim;
2091 nextTbtt = bs->bs_nexttbtt;
2093 ath_dbg(common, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
2094 ath_dbg(common, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
2095 ath_dbg(common, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
2096 ath_dbg(common, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
2098 ENABLE_REGWRITE_BUFFER(ah);
2100 REG_WRITE(ah, AR_NEXT_DTIM,
2101 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
2102 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
2104 REG_WRITE(ah, AR_SLEEP1,
2105 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
2106 | AR_SLEEP1_ASSUME_DTIM);
2108 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
2109 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
2111 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
2113 REG_WRITE(ah, AR_SLEEP2,
2114 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
2116 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
2117 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
2119 REGWRITE_BUFFER_FLUSH(ah);
2121 REG_SET_BIT(ah, AR_TIMER_MODE,
2122 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
2125 /* TSF Out of Range Threshold */
2126 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
2128 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
2130 /*******************/
2131 /* HW Capabilities */
2132 /*******************/
2134 static u8 fixup_chainmask(u8 chip_chainmask, u8 eeprom_chainmask)
2136 eeprom_chainmask &= chip_chainmask;
2137 if (eeprom_chainmask)
2138 return eeprom_chainmask;
2140 return chip_chainmask;
2143 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
2145 struct ath9k_hw_capabilities *pCap = &ah->caps;
2146 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2147 struct ath_common *common = ath9k_hw_common(ah);
2148 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
2149 unsigned int chip_chainmask;
2152 u8 ant_div_ctl1, tx_chainmask, rx_chainmask;
2154 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
2155 regulatory->current_rd = eeval;
2157 if (ah->opmode != NL80211_IFTYPE_AP &&
2158 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
2159 if (regulatory->current_rd == 0x64 ||
2160 regulatory->current_rd == 0x65)
2161 regulatory->current_rd += 5;
2162 else if (regulatory->current_rd == 0x41)
2163 regulatory->current_rd = 0x43;
2164 ath_dbg(common, ATH_DBG_REGULATORY,
2165 "regdomain mapped to 0x%x\n", regulatory->current_rd);
2168 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
2169 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
2171 "no band has been marked as supported in EEPROM\n");
2175 if (eeval & AR5416_OPFLAGS_11A)
2176 pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
2178 if (eeval & AR5416_OPFLAGS_11G)
2179 pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
2181 if (AR_SREV_9485(ah) || AR_SREV_9285(ah) || AR_SREV_9330(ah))
2183 else if (!AR_SREV_9280_20_OR_LATER(ah))
2185 else if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9340(ah))
2190 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
2192 * For AR9271 we will temporarilly uses the rx chainmax as read from
2195 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
2196 !(eeval & AR5416_OPFLAGS_11A) &&
2197 !(AR_SREV_9271(ah)))
2198 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
2199 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
2200 else if (AR_SREV_9100(ah))
2201 pCap->rx_chainmask = 0x7;
2203 /* Use rx_chainmask from EEPROM. */
2204 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
2206 pCap->tx_chainmask = fixup_chainmask(chip_chainmask, pCap->tx_chainmask);
2207 pCap->rx_chainmask = fixup_chainmask(chip_chainmask, pCap->rx_chainmask);
2208 ah->txchainmask = pCap->tx_chainmask;
2209 ah->rxchainmask = pCap->rx_chainmask;
2211 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
2213 /* enable key search for every frame in an aggregate */
2214 if (AR_SREV_9300_20_OR_LATER(ah))
2215 ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
2217 common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
2219 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
2220 pCap->hw_caps |= ATH9K_HW_CAP_HT;
2222 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
2224 if (AR_SREV_9271(ah))
2225 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2226 else if (AR_DEVID_7010(ah))
2227 pCap->num_gpio_pins = AR7010_NUM_GPIO;
2228 else if (AR_SREV_9300_20_OR_LATER(ah))
2229 pCap->num_gpio_pins = AR9300_NUM_GPIO;
2230 else if (AR_SREV_9287_11_OR_LATER(ah))
2231 pCap->num_gpio_pins = AR9287_NUM_GPIO;
2232 else if (AR_SREV_9285_12_OR_LATER(ah))
2233 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2234 else if (AR_SREV_9280_20_OR_LATER(ah))
2235 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2237 pCap->num_gpio_pins = AR_NUM_GPIO;
2239 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
2240 pCap->hw_caps |= ATH9K_HW_CAP_CST;
2241 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2243 pCap->rts_aggr_limit = (8 * 1024);
2246 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
2247 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2248 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2250 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2251 ah->rfkill_polarity =
2252 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2254 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2257 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
2258 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2260 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2262 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2263 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2265 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2267 if (common->btcoex_enabled) {
2268 if (AR_SREV_9300_20_OR_LATER(ah)) {
2269 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
2270 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO_9300;
2271 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO_9300;
2272 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO_9300;
2273 } else if (AR_SREV_9280_20_OR_LATER(ah)) {
2274 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO_9280;
2275 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO_9280;
2277 if (AR_SREV_9285(ah)) {
2278 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
2279 btcoex_hw->btpriority_gpio =
2280 ATH_BTPRIORITY_GPIO_9285;
2282 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
2286 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
2289 if (AR_SREV_9300_20_OR_LATER(ah)) {
2290 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
2291 if (!AR_SREV_9330(ah) && !AR_SREV_9485(ah))
2292 pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
2294 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2295 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2296 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2297 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2298 pCap->txs_len = sizeof(struct ar9003_txs);
2299 if (!ah->config.paprd_disable &&
2300 ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
2301 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
2303 pCap->tx_desc_len = sizeof(struct ath_desc);
2304 if (AR_SREV_9280_20(ah))
2305 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
2308 if (AR_SREV_9300_20_OR_LATER(ah))
2309 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2311 if (AR_SREV_9300_20_OR_LATER(ah))
2312 ah->ent_mode = REG_READ(ah, AR_ENT_OTP);
2314 if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah))
2315 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
2317 if (AR_SREV_9285(ah))
2318 if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) {
2320 ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2321 if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1))
2322 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2324 if (AR_SREV_9300_20_OR_LATER(ah)) {
2325 if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
2326 pCap->hw_caps |= ATH9K_HW_CAP_APM;
2330 if (AR_SREV_9330(ah) || AR_SREV_9485(ah)) {
2331 ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2333 * enable the diversity-combining algorithm only when
2334 * both enable_lna_div and enable_fast_div are set
2335 * Table for Diversity
2336 * ant_div_alt_lnaconf bit 0-1
2337 * ant_div_main_lnaconf bit 2-3
2338 * ant_div_alt_gaintb bit 4
2339 * ant_div_main_gaintb bit 5
2340 * enable_ant_div_lnadiv bit 6
2341 * enable_ant_fast_div bit 7
2343 if ((ant_div_ctl1 >> 0x6) == 0x3)
2344 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2347 if (AR_SREV_9485_10(ah)) {
2348 pCap->pcie_lcr_extsync_en = true;
2349 pCap->pcie_lcr_offset = 0x80;
2352 tx_chainmask = pCap->tx_chainmask;
2353 rx_chainmask = pCap->rx_chainmask;
2354 while (tx_chainmask || rx_chainmask) {
2355 if (tx_chainmask & BIT(0))
2356 pCap->max_txchains++;
2357 if (rx_chainmask & BIT(0))
2358 pCap->max_rxchains++;
2364 if (AR_SREV_9300_20_OR_LATER(ah)) {
2365 ah->enabled_cals |= TX_IQ_CAL;
2366 if (!AR_SREV_9330(ah))
2367 ah->enabled_cals |= TX_IQ_ON_AGC_CAL;
2369 if (AR_SREV_9462(ah))
2370 pCap->hw_caps |= ATH9K_HW_CAP_RTT | ATH9K_HW_CAP_MCI;
2375 /****************************/
2376 /* GPIO / RFKILL / Antennae */
2377 /****************************/
2379 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2383 u32 gpio_shift, tmp;
2386 addr = AR_GPIO_OUTPUT_MUX3;
2388 addr = AR_GPIO_OUTPUT_MUX2;
2390 addr = AR_GPIO_OUTPUT_MUX1;
2392 gpio_shift = (gpio % 6) * 5;
2394 if (AR_SREV_9280_20_OR_LATER(ah)
2395 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2396 REG_RMW(ah, addr, (type << gpio_shift),
2397 (0x1f << gpio_shift));
2399 tmp = REG_READ(ah, addr);
2400 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2401 tmp &= ~(0x1f << gpio_shift);
2402 tmp |= (type << gpio_shift);
2403 REG_WRITE(ah, addr, tmp);
2407 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2411 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2413 if (AR_DEVID_7010(ah)) {
2415 REG_RMW(ah, AR7010_GPIO_OE,
2416 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2417 (AR7010_GPIO_OE_MASK << gpio_shift));
2421 gpio_shift = gpio << 1;
2424 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2425 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2427 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2429 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2431 #define MS_REG_READ(x, y) \
2432 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2434 if (gpio >= ah->caps.num_gpio_pins)
2437 if (AR_DEVID_7010(ah)) {
2439 val = REG_READ(ah, AR7010_GPIO_IN);
2440 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2441 } else if (AR_SREV_9300_20_OR_LATER(ah))
2442 return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
2443 AR_GPIO_BIT(gpio)) != 0;
2444 else if (AR_SREV_9271(ah))
2445 return MS_REG_READ(AR9271, gpio) != 0;
2446 else if (AR_SREV_9287_11_OR_LATER(ah))
2447 return MS_REG_READ(AR9287, gpio) != 0;
2448 else if (AR_SREV_9285_12_OR_LATER(ah))
2449 return MS_REG_READ(AR9285, gpio) != 0;
2450 else if (AR_SREV_9280_20_OR_LATER(ah))
2451 return MS_REG_READ(AR928X, gpio) != 0;
2453 return MS_REG_READ(AR, gpio) != 0;
2455 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2457 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2462 if (AR_DEVID_7010(ah)) {
2464 REG_RMW(ah, AR7010_GPIO_OE,
2465 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2466 (AR7010_GPIO_OE_MASK << gpio_shift));
2470 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2471 gpio_shift = 2 * gpio;
2474 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2475 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2477 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2479 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2481 if (AR_DEVID_7010(ah)) {
2483 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2488 if (AR_SREV_9271(ah))
2491 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2494 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2496 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
2498 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
2500 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
2502 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2504 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2506 EXPORT_SYMBOL(ath9k_hw_setantenna);
2508 /*********************/
2509 /* General Operation */
2510 /*********************/
2512 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2514 u32 bits = REG_READ(ah, AR_RX_FILTER);
2515 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2517 if (phybits & AR_PHY_ERR_RADAR)
2518 bits |= ATH9K_RX_FILTER_PHYRADAR;
2519 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2520 bits |= ATH9K_RX_FILTER_PHYERR;
2524 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2526 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2530 ENABLE_REGWRITE_BUFFER(ah);
2532 if (AR_SREV_9462(ah))
2533 bits |= ATH9K_RX_FILTER_CONTROL_WRAPPER;
2535 REG_WRITE(ah, AR_RX_FILTER, bits);
2538 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2539 phybits |= AR_PHY_ERR_RADAR;
2540 if (bits & ATH9K_RX_FILTER_PHYERR)
2541 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2542 REG_WRITE(ah, AR_PHY_ERR, phybits);
2545 REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2547 REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2549 REGWRITE_BUFFER_FLUSH(ah);
2551 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2553 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2555 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2558 ath9k_hw_init_pll(ah, NULL);
2561 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2563 bool ath9k_hw_disable(struct ath_hw *ah)
2565 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2568 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2571 ath9k_hw_init_pll(ah, NULL);
2574 EXPORT_SYMBOL(ath9k_hw_disable);
2576 static int get_antenna_gain(struct ath_hw *ah, struct ath9k_channel *chan)
2578 enum eeprom_param gain_param;
2580 if (IS_CHAN_2GHZ(chan))
2581 gain_param = EEP_ANTENNA_GAIN_2G;
2583 gain_param = EEP_ANTENNA_GAIN_5G;
2585 return ah->eep_ops->get_eeprom(ah, gain_param);
2588 void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan)
2590 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2591 struct ieee80211_channel *channel;
2592 int chan_pwr, new_pwr, max_gain;
2593 int ant_gain, ant_reduction = 0;
2598 channel = chan->chan;
2599 chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER);
2600 new_pwr = min_t(int, chan_pwr, reg->power_limit);
2601 max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2;
2603 ant_gain = get_antenna_gain(ah, chan);
2604 if (ant_gain > max_gain)
2605 ant_reduction = ant_gain - max_gain;
2607 ah->eep_ops->set_txpower(ah, chan,
2608 ath9k_regd_get_ctl(reg, chan),
2609 ant_reduction, new_pwr, false);
2612 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
2614 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2615 struct ath9k_channel *chan = ah->curchan;
2616 struct ieee80211_channel *channel = chan->chan;
2618 reg->power_limit = min_t(u32, limit, MAX_RATE_POWER);
2620 channel->max_power = MAX_RATE_POWER / 2;
2622 ath9k_hw_apply_txpower(ah, chan);
2625 channel->max_power = DIV_ROUND_UP(reg->max_power_level, 2);
2627 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2629 void ath9k_hw_setopmode(struct ath_hw *ah)
2631 ath9k_hw_set_operating_mode(ah, ah->opmode);
2633 EXPORT_SYMBOL(ath9k_hw_setopmode);
2635 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2637 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2638 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2640 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2642 void ath9k_hw_write_associd(struct ath_hw *ah)
2644 struct ath_common *common = ath9k_hw_common(ah);
2646 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2647 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2648 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2650 EXPORT_SYMBOL(ath9k_hw_write_associd);
2652 #define ATH9K_MAX_TSF_READ 10
2654 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2656 u32 tsf_lower, tsf_upper1, tsf_upper2;
2659 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2660 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2661 tsf_lower = REG_READ(ah, AR_TSF_L32);
2662 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2663 if (tsf_upper2 == tsf_upper1)
2665 tsf_upper1 = tsf_upper2;
2668 WARN_ON( i == ATH9K_MAX_TSF_READ );
2670 return (((u64)tsf_upper1 << 32) | tsf_lower);
2672 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2674 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2676 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2677 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2679 EXPORT_SYMBOL(ath9k_hw_settsf64);
2681 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2683 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2684 AH_TSF_WRITE_TIMEOUT))
2685 ath_dbg(ath9k_hw_common(ah), ATH_DBG_RESET,
2686 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2688 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2690 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2692 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
2695 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2697 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2699 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2701 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2703 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2706 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2707 macmode = AR_2040_JOINED_RX_CLEAR;
2711 REG_WRITE(ah, AR_2040_MODE, macmode);
2714 /* HW Generic timers configuration */
2716 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2718 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2719 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2720 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2721 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2722 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2723 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2724 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2725 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2726 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2727 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2728 AR_NDP2_TIMER_MODE, 0x0002},
2729 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2730 AR_NDP2_TIMER_MODE, 0x0004},
2731 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2732 AR_NDP2_TIMER_MODE, 0x0008},
2733 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2734 AR_NDP2_TIMER_MODE, 0x0010},
2735 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2736 AR_NDP2_TIMER_MODE, 0x0020},
2737 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2738 AR_NDP2_TIMER_MODE, 0x0040},
2739 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2740 AR_NDP2_TIMER_MODE, 0x0080}
2743 /* HW generic timer primitives */
2745 /* compute and clear index of rightmost 1 */
2746 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2756 return timer_table->gen_timer_index[b];
2759 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2761 return REG_READ(ah, AR_TSF_L32);
2763 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2765 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2766 void (*trigger)(void *),
2767 void (*overflow)(void *),
2771 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2772 struct ath_gen_timer *timer;
2774 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2776 if (timer == NULL) {
2777 ath_err(ath9k_hw_common(ah),
2778 "Failed to allocate memory for hw timer[%d]\n",
2783 /* allocate a hardware generic timer slot */
2784 timer_table->timers[timer_index] = timer;
2785 timer->index = timer_index;
2786 timer->trigger = trigger;
2787 timer->overflow = overflow;
2792 EXPORT_SYMBOL(ath_gen_timer_alloc);
2794 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2795 struct ath_gen_timer *timer,
2799 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2800 u32 tsf, timer_next;
2802 BUG_ON(!timer_period);
2804 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2806 tsf = ath9k_hw_gettsf32(ah);
2808 timer_next = tsf + trig_timeout;
2810 ath_dbg(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
2811 "current tsf %x period %x timer_next %x\n",
2812 tsf, timer_period, timer_next);
2815 * Program generic timer registers
2817 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2819 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2821 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2822 gen_tmr_configuration[timer->index].mode_mask);
2824 if (AR_SREV_9462(ah)) {
2826 * Starting from AR9462, each generic timer can select which tsf
2827 * to use. But we still follow the old rule, 0 - 7 use tsf and
2830 if ((timer->index < AR_GEN_TIMER_BANK_1_LEN))
2831 REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
2832 (1 << timer->index));
2834 REG_SET_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
2835 (1 << timer->index));
2838 /* Enable both trigger and thresh interrupt masks */
2839 REG_SET_BIT(ah, AR_IMR_S5,
2840 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2841 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2843 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2845 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2847 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2849 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2850 (timer->index >= ATH_MAX_GEN_TIMER)) {
2854 /* Clear generic timer enable bits. */
2855 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2856 gen_tmr_configuration[timer->index].mode_mask);
2858 /* Disable both trigger and thresh interrupt masks */
2859 REG_CLR_BIT(ah, AR_IMR_S5,
2860 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2861 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2863 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
2865 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
2867 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2869 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2871 /* free the hardware generic timer slot */
2872 timer_table->timers[timer->index] = NULL;
2875 EXPORT_SYMBOL(ath_gen_timer_free);
2878 * Generic Timer Interrupts handling
2880 void ath_gen_timer_isr(struct ath_hw *ah)
2882 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2883 struct ath_gen_timer *timer;
2884 struct ath_common *common = ath9k_hw_common(ah);
2885 u32 trigger_mask, thresh_mask, index;
2887 /* get hardware generic timer interrupt status */
2888 trigger_mask = ah->intr_gen_timer_trigger;
2889 thresh_mask = ah->intr_gen_timer_thresh;
2890 trigger_mask &= timer_table->timer_mask.val;
2891 thresh_mask &= timer_table->timer_mask.val;
2893 trigger_mask &= ~thresh_mask;
2895 while (thresh_mask) {
2896 index = rightmost_index(timer_table, &thresh_mask);
2897 timer = timer_table->timers[index];
2899 ath_dbg(common, ATH_DBG_HWTIMER,
2900 "TSF overflow for Gen timer %d\n", index);
2901 timer->overflow(timer->arg);
2904 while (trigger_mask) {
2905 index = rightmost_index(timer_table, &trigger_mask);
2906 timer = timer_table->timers[index];
2908 ath_dbg(common, ATH_DBG_HWTIMER,
2909 "Gen timer[%d] trigger\n", index);
2910 timer->trigger(timer->arg);
2913 EXPORT_SYMBOL(ath_gen_timer_isr);
2919 void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2921 ah->htc_reset_init = true;
2923 EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2928 } ath_mac_bb_names[] = {
2929 /* Devices with external radios */
2930 { AR_SREV_VERSION_5416_PCI, "5416" },
2931 { AR_SREV_VERSION_5416_PCIE, "5418" },
2932 { AR_SREV_VERSION_9100, "9100" },
2933 { AR_SREV_VERSION_9160, "9160" },
2934 /* Single-chip solutions */
2935 { AR_SREV_VERSION_9280, "9280" },
2936 { AR_SREV_VERSION_9285, "9285" },
2937 { AR_SREV_VERSION_9287, "9287" },
2938 { AR_SREV_VERSION_9271, "9271" },
2939 { AR_SREV_VERSION_9300, "9300" },
2940 { AR_SREV_VERSION_9330, "9330" },
2941 { AR_SREV_VERSION_9340, "9340" },
2942 { AR_SREV_VERSION_9485, "9485" },
2943 { AR_SREV_VERSION_9462, "9462" },
2946 /* For devices with external radios */
2950 } ath_rf_names[] = {
2952 { AR_RAD5133_SREV_MAJOR, "5133" },
2953 { AR_RAD5122_SREV_MAJOR, "5122" },
2954 { AR_RAD2133_SREV_MAJOR, "2133" },
2955 { AR_RAD2122_SREV_MAJOR, "2122" }
2959 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2961 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2965 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
2966 if (ath_mac_bb_names[i].version == mac_bb_version) {
2967 return ath_mac_bb_names[i].name;
2975 * Return the RF name. "????" is returned if the RF is unknown.
2976 * Used for devices with external radios.
2978 static const char *ath9k_hw_rf_name(u16 rf_version)
2982 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
2983 if (ath_rf_names[i].version == rf_version) {
2984 return ath_rf_names[i].name;
2991 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
2995 /* chipsets >= AR9280 are single-chip */
2996 if (AR_SREV_9280_20_OR_LATER(ah)) {
2997 used = snprintf(hw_name, len,
2998 "Atheros AR%s Rev:%x",
2999 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3000 ah->hw_version.macRev);
3003 used = snprintf(hw_name, len,
3004 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
3005 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3006 ah->hw_version.macRev,
3007 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
3008 AR_RADIO_SREV_MAJOR)),
3009 ah->hw_version.phyRev);
3012 hw_name[used] = '\0';
3014 EXPORT_SYMBOL(ath9k_hw_name);