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 bool ath9k_hw_macversion_supported(struct ath_hw *ah)
59 struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
61 return priv_ops->macversion_supported(ah->hw_version.macVersion);
64 static u32 ath9k_hw_compute_pll_control(struct ath_hw *ah,
65 struct ath9k_channel *chan)
67 return ath9k_hw_private_ops(ah)->compute_pll_control(ah, chan);
70 static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
72 if (!ath9k_hw_private_ops(ah)->init_mode_gain_regs)
75 ath9k_hw_private_ops(ah)->init_mode_gain_regs(ah);
78 static void ath9k_hw_ani_cache_ini_regs(struct ath_hw *ah)
80 /* You will not have this callback if using the old ANI */
81 if (!ath9k_hw_private_ops(ah)->ani_cache_ini_regs)
84 ath9k_hw_private_ops(ah)->ani_cache_ini_regs(ah);
87 /********************/
88 /* Helper Functions */
89 /********************/
91 static u32 ath9k_hw_mac_clks(struct ath_hw *ah, u32 usecs)
93 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
95 if (!ah->curchan) /* should really check for CCK instead */
96 return usecs *ATH9K_CLOCK_RATE_CCK;
97 if (conf->channel->band == IEEE80211_BAND_2GHZ)
98 return usecs *ATH9K_CLOCK_RATE_2GHZ_OFDM;
100 if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
101 return usecs * ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
103 return usecs * ATH9K_CLOCK_RATE_5GHZ_OFDM;
106 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
108 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
110 if (conf_is_ht40(conf))
111 return ath9k_hw_mac_clks(ah, usecs) * 2;
113 return ath9k_hw_mac_clks(ah, usecs);
116 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
120 BUG_ON(timeout < AH_TIME_QUANTUM);
122 for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
123 if ((REG_READ(ah, reg) & mask) == val)
126 udelay(AH_TIME_QUANTUM);
129 ath_print(ath9k_hw_common(ah), ATH_DBG_ANY,
130 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
131 timeout, reg, REG_READ(ah, reg), mask, val);
135 EXPORT_SYMBOL(ath9k_hw_wait);
137 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
142 for (i = 0, retval = 0; i < n; i++) {
143 retval = (retval << 1) | (val & 1);
149 bool ath9k_get_channel_edges(struct ath_hw *ah,
153 struct ath9k_hw_capabilities *pCap = &ah->caps;
155 if (flags & CHANNEL_5GHZ) {
156 *low = pCap->low_5ghz_chan;
157 *high = pCap->high_5ghz_chan;
160 if ((flags & CHANNEL_2GHZ)) {
161 *low = pCap->low_2ghz_chan;
162 *high = pCap->high_2ghz_chan;
168 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
170 u32 frameLen, u16 rateix,
173 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
179 case WLAN_RC_PHY_CCK:
180 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
183 numBits = frameLen << 3;
184 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
186 case WLAN_RC_PHY_OFDM:
187 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
188 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
189 numBits = OFDM_PLCP_BITS + (frameLen << 3);
190 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
191 txTime = OFDM_SIFS_TIME_QUARTER
192 + OFDM_PREAMBLE_TIME_QUARTER
193 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
194 } else if (ah->curchan &&
195 IS_CHAN_HALF_RATE(ah->curchan)) {
196 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
197 numBits = OFDM_PLCP_BITS + (frameLen << 3);
198 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
199 txTime = OFDM_SIFS_TIME_HALF +
200 OFDM_PREAMBLE_TIME_HALF
201 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
203 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
204 numBits = OFDM_PLCP_BITS + (frameLen << 3);
205 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
206 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
207 + (numSymbols * OFDM_SYMBOL_TIME);
211 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
212 "Unknown phy %u (rate ix %u)\n", phy, rateix);
219 EXPORT_SYMBOL(ath9k_hw_computetxtime);
221 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
222 struct ath9k_channel *chan,
223 struct chan_centers *centers)
227 if (!IS_CHAN_HT40(chan)) {
228 centers->ctl_center = centers->ext_center =
229 centers->synth_center = chan->channel;
233 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
234 (chan->chanmode == CHANNEL_G_HT40PLUS)) {
235 centers->synth_center =
236 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
239 centers->synth_center =
240 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
244 centers->ctl_center =
245 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
246 /* 25 MHz spacing is supported by hw but not on upper layers */
247 centers->ext_center =
248 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
255 static void ath9k_hw_read_revisions(struct ath_hw *ah)
259 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
262 val = REG_READ(ah, AR_SREV);
263 ah->hw_version.macVersion =
264 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
265 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
266 ah->is_pciexpress = (val & AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
268 if (!AR_SREV_9100(ah))
269 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
271 ah->hw_version.macRev = val & AR_SREV_REVISION;
273 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
274 ah->is_pciexpress = true;
278 /************************************/
279 /* HW Attach, Detach, Init Routines */
280 /************************************/
282 static void ath9k_hw_disablepcie(struct ath_hw *ah)
284 if (AR_SREV_9100(ah))
287 ENABLE_REGWRITE_BUFFER(ah);
289 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
290 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
291 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
292 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
293 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
294 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
295 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
296 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
297 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
299 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
301 REGWRITE_BUFFER_FLUSH(ah);
302 DISABLE_REGWRITE_BUFFER(ah);
305 /* This should work for all families including legacy */
306 static bool ath9k_hw_chip_test(struct ath_hw *ah)
308 struct ath_common *common = ath9k_hw_common(ah);
309 u32 regAddr[2] = { AR_STA_ID0 };
311 u32 patternData[4] = { 0x55555555,
317 if (!AR_SREV_9300_20_OR_LATER(ah)) {
319 regAddr[1] = AR_PHY_BASE + (8 << 2);
323 for (i = 0; i < loop_max; i++) {
324 u32 addr = regAddr[i];
327 regHold[i] = REG_READ(ah, addr);
328 for (j = 0; j < 0x100; j++) {
329 wrData = (j << 16) | j;
330 REG_WRITE(ah, addr, wrData);
331 rdData = REG_READ(ah, addr);
332 if (rdData != wrData) {
333 ath_print(common, ATH_DBG_FATAL,
334 "address test failed "
335 "addr: 0x%08x - wr:0x%08x != "
337 addr, wrData, rdData);
341 for (j = 0; j < 4; j++) {
342 wrData = patternData[j];
343 REG_WRITE(ah, addr, wrData);
344 rdData = REG_READ(ah, addr);
345 if (wrData != rdData) {
346 ath_print(common, ATH_DBG_FATAL,
347 "address test failed "
348 "addr: 0x%08x - wr:0x%08x != "
350 addr, wrData, rdData);
354 REG_WRITE(ah, regAddr[i], regHold[i]);
361 static void ath9k_hw_init_config(struct ath_hw *ah)
365 ah->config.dma_beacon_response_time = 2;
366 ah->config.sw_beacon_response_time = 10;
367 ah->config.additional_swba_backoff = 0;
368 ah->config.ack_6mb = 0x0;
369 ah->config.cwm_ignore_extcca = 0;
370 ah->config.pcie_powersave_enable = 0;
371 ah->config.pcie_clock_req = 0;
372 ah->config.pcie_waen = 0;
373 ah->config.analog_shiftreg = 1;
374 ah->config.ofdm_trig_low = 200;
375 ah->config.ofdm_trig_high = 500;
376 ah->config.cck_trig_high = 200;
377 ah->config.cck_trig_low = 100;
378 ah->config.enable_ani = true;
380 for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
381 ah->config.spurchans[i][0] = AR_NO_SPUR;
382 ah->config.spurchans[i][1] = AR_NO_SPUR;
385 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
386 ah->config.ht_enable = 1;
388 ah->config.ht_enable = 0;
390 ah->config.rx_intr_mitigation = true;
391 ah->config.pcieSerDesWrite = true;
394 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
395 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
396 * This means we use it for all AR5416 devices, and the few
397 * minor PCI AR9280 devices out there.
399 * Serialization is required because these devices do not handle
400 * well the case of two concurrent reads/writes due to the latency
401 * involved. During one read/write another read/write can be issued
402 * on another CPU while the previous read/write may still be working
403 * on our hardware, if we hit this case the hardware poops in a loop.
404 * We prevent this by serializing reads and writes.
406 * This issue is not present on PCI-Express devices or pre-AR5416
407 * devices (legacy, 802.11abg).
409 if (num_possible_cpus() > 1)
410 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
413 static void ath9k_hw_init_defaults(struct ath_hw *ah)
415 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
417 regulatory->country_code = CTRY_DEFAULT;
418 regulatory->power_limit = MAX_RATE_POWER;
419 regulatory->tp_scale = ATH9K_TP_SCALE_MAX;
421 ah->hw_version.magic = AR5416_MAGIC;
422 ah->hw_version.subvendorid = 0;
425 if (!AR_SREV_9100(ah))
426 ah->ah_flags = AH_USE_EEPROM;
429 ah->sta_id1_defaults =
430 AR_STA_ID1_CRPT_MIC_ENABLE |
431 AR_STA_ID1_MCAST_KSRCH;
432 ah->beacon_interval = 100;
433 ah->enable_32kHz_clock = DONT_USE_32KHZ;
434 ah->slottime = (u32) -1;
435 ah->globaltxtimeout = (u32) -1;
436 ah->power_mode = ATH9K_PM_UNDEFINED;
439 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
441 struct ath_common *common = ath9k_hw_common(ah);
445 u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
448 for (i = 0; i < 3; i++) {
449 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
451 common->macaddr[2 * i] = eeval >> 8;
452 common->macaddr[2 * i + 1] = eeval & 0xff;
454 if (sum == 0 || sum == 0xffff * 3)
455 return -EADDRNOTAVAIL;
460 static int ath9k_hw_post_init(struct ath_hw *ah)
464 if (!AR_SREV_9271(ah)) {
465 if (!ath9k_hw_chip_test(ah))
469 if (!AR_SREV_9300_20_OR_LATER(ah)) {
470 ecode = ar9002_hw_rf_claim(ah);
475 ecode = ath9k_hw_eeprom_init(ah);
479 ath_print(ath9k_hw_common(ah), ATH_DBG_CONFIG,
480 "Eeprom VER: %d, REV: %d\n",
481 ah->eep_ops->get_eeprom_ver(ah),
482 ah->eep_ops->get_eeprom_rev(ah));
484 ecode = ath9k_hw_rf_alloc_ext_banks(ah);
486 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
487 "Failed allocating banks for "
492 if (!AR_SREV_9100(ah)) {
493 ath9k_hw_ani_setup(ah);
494 ath9k_hw_ani_init(ah);
500 static void ath9k_hw_attach_ops(struct ath_hw *ah)
502 if (AR_SREV_9300_20_OR_LATER(ah))
503 ar9003_hw_attach_ops(ah);
505 ar9002_hw_attach_ops(ah);
508 /* Called for all hardware families */
509 static int __ath9k_hw_init(struct ath_hw *ah)
511 struct ath_common *common = ath9k_hw_common(ah);
514 if (ah->hw_version.devid == AR5416_AR9100_DEVID)
515 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
517 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
518 ath_print(common, ATH_DBG_FATAL,
519 "Couldn't reset chip\n");
523 ath9k_hw_init_defaults(ah);
524 ath9k_hw_init_config(ah);
526 ath9k_hw_attach_ops(ah);
528 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
529 ath_print(common, ATH_DBG_FATAL, "Couldn't wakeup chip\n");
533 if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
534 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
535 ((AR_SREV_9160(ah) || AR_SREV_9280(ah)) &&
536 !ah->is_pciexpress)) {
537 ah->config.serialize_regmode =
540 ah->config.serialize_regmode =
545 ath_print(common, ATH_DBG_RESET, "serialize_regmode is %d\n",
546 ah->config.serialize_regmode);
548 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
549 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
551 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
553 if (!ath9k_hw_macversion_supported(ah)) {
554 ath_print(common, ATH_DBG_FATAL,
555 "Mac Chip Rev 0x%02x.%x is not supported by "
556 "this driver\n", ah->hw_version.macVersion,
557 ah->hw_version.macRev);
561 if (AR_SREV_9271(ah) || AR_SREV_9100(ah))
562 ah->is_pciexpress = false;
564 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
565 ath9k_hw_init_cal_settings(ah);
567 ah->ani_function = ATH9K_ANI_ALL;
568 if (AR_SREV_9280_10_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah))
569 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
570 if (!AR_SREV_9300_20_OR_LATER(ah))
571 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
573 ath9k_hw_init_mode_regs(ah);
576 * Read back AR_WA into a permanent copy and set bits 14 and 17.
577 * We need to do this to avoid RMW of this register. We cannot
578 * read the reg when chip is asleep.
580 ah->WARegVal = REG_READ(ah, AR_WA);
581 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
582 AR_WA_ASPM_TIMER_BASED_DISABLE);
584 if (ah->is_pciexpress)
585 ath9k_hw_configpcipowersave(ah, 0, 0);
587 ath9k_hw_disablepcie(ah);
589 if (!AR_SREV_9300_20_OR_LATER(ah))
590 ar9002_hw_cck_chan14_spread(ah);
592 r = ath9k_hw_post_init(ah);
596 ath9k_hw_init_mode_gain_regs(ah);
597 r = ath9k_hw_fill_cap_info(ah);
601 r = ath9k_hw_init_macaddr(ah);
603 ath_print(common, ATH_DBG_FATAL,
604 "Failed to initialize MAC address\n");
608 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
609 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
611 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
613 ath9k_init_nfcal_hist_buffer(ah);
614 ah->bb_watchdog_timeout_ms = 25;
616 common->state = ATH_HW_INITIALIZED;
621 int ath9k_hw_init(struct ath_hw *ah)
624 struct ath_common *common = ath9k_hw_common(ah);
626 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
627 switch (ah->hw_version.devid) {
628 case AR5416_DEVID_PCI:
629 case AR5416_DEVID_PCIE:
630 case AR5416_AR9100_DEVID:
631 case AR9160_DEVID_PCI:
632 case AR9280_DEVID_PCI:
633 case AR9280_DEVID_PCIE:
634 case AR9285_DEVID_PCIE:
635 case AR9287_DEVID_PCI:
636 case AR9287_DEVID_PCIE:
637 case AR2427_DEVID_PCIE:
638 case AR9300_DEVID_PCIE:
641 if (common->bus_ops->ath_bus_type == ATH_USB)
643 ath_print(common, ATH_DBG_FATAL,
644 "Hardware device ID 0x%04x not supported\n",
645 ah->hw_version.devid);
649 ret = __ath9k_hw_init(ah);
651 ath_print(common, ATH_DBG_FATAL,
652 "Unable to initialize hardware; "
653 "initialization status: %d\n", ret);
659 EXPORT_SYMBOL(ath9k_hw_init);
661 static void ath9k_hw_init_qos(struct ath_hw *ah)
663 ENABLE_REGWRITE_BUFFER(ah);
665 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
666 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
668 REG_WRITE(ah, AR_QOS_NO_ACK,
669 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
670 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
671 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
673 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
674 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
675 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
676 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
677 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
679 REGWRITE_BUFFER_FLUSH(ah);
680 DISABLE_REGWRITE_BUFFER(ah);
683 static void ath9k_hw_init_pll(struct ath_hw *ah,
684 struct ath9k_channel *chan)
686 u32 pll = ath9k_hw_compute_pll_control(ah, chan);
688 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
690 /* Switch the core clock for ar9271 to 117Mhz */
691 if (AR_SREV_9271(ah)) {
693 REG_WRITE(ah, 0x50040, 0x304);
696 udelay(RTC_PLL_SETTLE_DELAY);
698 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
701 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
702 enum nl80211_iftype opmode)
704 u32 imr_reg = AR_IMR_TXERR |
710 if (AR_SREV_9300_20_OR_LATER(ah)) {
711 imr_reg |= AR_IMR_RXOK_HP;
712 if (ah->config.rx_intr_mitigation)
713 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
715 imr_reg |= AR_IMR_RXOK_LP;
718 if (ah->config.rx_intr_mitigation)
719 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
721 imr_reg |= AR_IMR_RXOK;
724 if (ah->config.tx_intr_mitigation)
725 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
727 imr_reg |= AR_IMR_TXOK;
729 if (opmode == NL80211_IFTYPE_AP)
730 imr_reg |= AR_IMR_MIB;
732 ENABLE_REGWRITE_BUFFER(ah);
734 REG_WRITE(ah, AR_IMR, imr_reg);
735 ah->imrs2_reg |= AR_IMR_S2_GTT;
736 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
738 if (!AR_SREV_9100(ah)) {
739 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
740 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
741 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
744 REGWRITE_BUFFER_FLUSH(ah);
745 DISABLE_REGWRITE_BUFFER(ah);
747 if (AR_SREV_9300_20_OR_LATER(ah)) {
748 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
749 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
750 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
751 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
755 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
757 u32 val = ath9k_hw_mac_to_clks(ah, us);
758 val = min(val, (u32) 0xFFFF);
759 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
762 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
764 u32 val = ath9k_hw_mac_to_clks(ah, us);
765 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
766 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
769 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
771 u32 val = ath9k_hw_mac_to_clks(ah, us);
772 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
773 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
776 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
779 ath_print(ath9k_hw_common(ah), ATH_DBG_XMIT,
780 "bad global tx timeout %u\n", tu);
781 ah->globaltxtimeout = (u32) -1;
784 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
785 ah->globaltxtimeout = tu;
790 void ath9k_hw_init_global_settings(struct ath_hw *ah)
792 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
797 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
800 if (ah->misc_mode != 0)
801 REG_WRITE(ah, AR_PCU_MISC,
802 REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
804 if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ)
809 /* As defined by IEEE 802.11-2007 17.3.8.6 */
810 slottime = ah->slottime + 3 * ah->coverage_class;
811 acktimeout = slottime + sifstime;
814 * Workaround for early ACK timeouts, add an offset to match the
815 * initval's 64us ack timeout value.
816 * This was initially only meant to work around an issue with delayed
817 * BA frames in some implementations, but it has been found to fix ACK
818 * timeout issues in other cases as well.
820 if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
821 acktimeout += 64 - sifstime - ah->slottime;
823 ath9k_hw_setslottime(ah, slottime);
824 ath9k_hw_set_ack_timeout(ah, acktimeout);
825 ath9k_hw_set_cts_timeout(ah, acktimeout);
826 if (ah->globaltxtimeout != (u32) -1)
827 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
829 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
831 void ath9k_hw_deinit(struct ath_hw *ah)
833 struct ath_common *common = ath9k_hw_common(ah);
835 if (common->state < ATH_HW_INITIALIZED)
838 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
841 ath9k_hw_rf_free_ext_banks(ah);
843 EXPORT_SYMBOL(ath9k_hw_deinit);
849 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
851 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
855 else if (IS_CHAN_G(chan))
863 /****************************************/
864 /* Reset and Channel Switching Routines */
865 /****************************************/
867 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
869 struct ath_common *common = ath9k_hw_common(ah);
872 ENABLE_REGWRITE_BUFFER(ah);
875 * set AHB_MODE not to do cacheline prefetches
877 if (!AR_SREV_9300_20_OR_LATER(ah)) {
878 regval = REG_READ(ah, AR_AHB_MODE);
879 REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
883 * let mac dma reads be in 128 byte chunks
885 regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
886 REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
888 REGWRITE_BUFFER_FLUSH(ah);
889 DISABLE_REGWRITE_BUFFER(ah);
892 * Restore TX Trigger Level to its pre-reset value.
893 * The initial value depends on whether aggregation is enabled, and is
894 * adjusted whenever underruns are detected.
896 if (!AR_SREV_9300_20_OR_LATER(ah))
897 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
899 ENABLE_REGWRITE_BUFFER(ah);
902 * let mac dma writes be in 128 byte chunks
904 regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
905 REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
908 * Setup receive FIFO threshold to hold off TX activities
910 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
912 if (AR_SREV_9300_20_OR_LATER(ah)) {
913 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
914 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
916 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
917 ah->caps.rx_status_len);
921 * reduce the number of usable entries in PCU TXBUF to avoid
922 * wrap around issues.
924 if (AR_SREV_9285(ah)) {
925 /* For AR9285 the number of Fifos are reduced to half.
926 * So set the usable tx buf size also to half to
927 * avoid data/delimiter underruns
929 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
930 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
931 } else if (!AR_SREV_9271(ah)) {
932 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
933 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
936 REGWRITE_BUFFER_FLUSH(ah);
937 DISABLE_REGWRITE_BUFFER(ah);
939 if (AR_SREV_9300_20_OR_LATER(ah))
940 ath9k_hw_reset_txstatus_ring(ah);
943 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
947 val = REG_READ(ah, AR_STA_ID1);
948 val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
950 case NL80211_IFTYPE_AP:
951 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
952 | AR_STA_ID1_KSRCH_MODE);
953 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
955 case NL80211_IFTYPE_ADHOC:
956 case NL80211_IFTYPE_MESH_POINT:
957 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
958 | AR_STA_ID1_KSRCH_MODE);
959 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
961 case NL80211_IFTYPE_STATION:
962 case NL80211_IFTYPE_MONITOR:
963 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
968 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
969 u32 *coef_mantissa, u32 *coef_exponent)
971 u32 coef_exp, coef_man;
973 for (coef_exp = 31; coef_exp > 0; coef_exp--)
974 if ((coef_scaled >> coef_exp) & 0x1)
977 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
979 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
981 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
982 *coef_exponent = coef_exp - 16;
985 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
990 if (AR_SREV_9100(ah)) {
991 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
992 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
993 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
994 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
995 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
998 ENABLE_REGWRITE_BUFFER(ah);
1000 if (AR_SREV_9300_20_OR_LATER(ah)) {
1001 REG_WRITE(ah, AR_WA, ah->WARegVal);
1005 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1006 AR_RTC_FORCE_WAKE_ON_INT);
1008 if (AR_SREV_9100(ah)) {
1009 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1010 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1012 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1014 (AR_INTR_SYNC_LOCAL_TIMEOUT |
1015 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1017 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1020 if (!AR_SREV_9300_20_OR_LATER(ah))
1022 REG_WRITE(ah, AR_RC, val);
1024 } else if (!AR_SREV_9300_20_OR_LATER(ah))
1025 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1027 rst_flags = AR_RTC_RC_MAC_WARM;
1028 if (type == ATH9K_RESET_COLD)
1029 rst_flags |= AR_RTC_RC_MAC_COLD;
1032 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1034 REGWRITE_BUFFER_FLUSH(ah);
1035 DISABLE_REGWRITE_BUFFER(ah);
1039 REG_WRITE(ah, AR_RTC_RC, 0);
1040 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1041 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1042 "RTC stuck in MAC reset\n");
1046 if (!AR_SREV_9100(ah))
1047 REG_WRITE(ah, AR_RC, 0);
1049 if (AR_SREV_9100(ah))
1055 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1057 ENABLE_REGWRITE_BUFFER(ah);
1059 if (AR_SREV_9300_20_OR_LATER(ah)) {
1060 REG_WRITE(ah, AR_WA, ah->WARegVal);
1064 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1065 AR_RTC_FORCE_WAKE_ON_INT);
1067 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1068 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1070 REG_WRITE(ah, AR_RTC_RESET, 0);
1073 REGWRITE_BUFFER_FLUSH(ah);
1074 DISABLE_REGWRITE_BUFFER(ah);
1076 if (!AR_SREV_9300_20_OR_LATER(ah))
1079 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1080 REG_WRITE(ah, AR_RC, 0);
1082 REG_WRITE(ah, AR_RTC_RESET, 1);
1084 if (!ath9k_hw_wait(ah,
1089 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1090 "RTC not waking up\n");
1094 ath9k_hw_read_revisions(ah);
1096 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1099 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1101 if (AR_SREV_9300_20_OR_LATER(ah)) {
1102 REG_WRITE(ah, AR_WA, ah->WARegVal);
1106 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1107 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1110 case ATH9K_RESET_POWER_ON:
1111 return ath9k_hw_set_reset_power_on(ah);
1112 case ATH9K_RESET_WARM:
1113 case ATH9K_RESET_COLD:
1114 return ath9k_hw_set_reset(ah, type);
1120 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1121 struct ath9k_channel *chan)
1123 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1124 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1126 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1129 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1132 ah->chip_fullsleep = false;
1133 ath9k_hw_init_pll(ah, chan);
1134 ath9k_hw_set_rfmode(ah, chan);
1139 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1140 struct ath9k_channel *chan)
1142 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1143 struct ath_common *common = ath9k_hw_common(ah);
1144 struct ieee80211_channel *channel = chan->chan;
1148 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1149 if (ath9k_hw_numtxpending(ah, qnum)) {
1150 ath_print(common, ATH_DBG_QUEUE,
1151 "Transmit frames pending on "
1152 "queue %d\n", qnum);
1157 if (!ath9k_hw_rfbus_req(ah)) {
1158 ath_print(common, ATH_DBG_FATAL,
1159 "Could not kill baseband RX\n");
1163 ath9k_hw_set_channel_regs(ah, chan);
1165 r = ath9k_hw_rf_set_freq(ah, chan);
1167 ath_print(common, ATH_DBG_FATAL,
1168 "Failed to set channel\n");
1172 ah->eep_ops->set_txpower(ah, chan,
1173 ath9k_regd_get_ctl(regulatory, chan),
1174 channel->max_antenna_gain * 2,
1175 channel->max_power * 2,
1176 min((u32) MAX_RATE_POWER,
1177 (u32) regulatory->power_limit));
1179 ath9k_hw_rfbus_done(ah);
1181 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1182 ath9k_hw_set_delta_slope(ah, chan);
1184 ath9k_hw_spur_mitigate_freq(ah, chan);
1186 if (!chan->oneTimeCalsDone)
1187 chan->oneTimeCalsDone = true;
1192 bool ath9k_hw_check_alive(struct ath_hw *ah)
1197 if (AR_SREV_9285_10_OR_LATER(ah))
1201 reg = REG_READ(ah, AR_OBS_BUS_1);
1203 if ((reg & 0x7E7FFFEF) == 0x00702400)
1206 switch (reg & 0x7E000B00) {
1214 } while (count-- > 0);
1218 EXPORT_SYMBOL(ath9k_hw_check_alive);
1220 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1221 bool bChannelChange)
1223 struct ath_common *common = ath9k_hw_common(ah);
1225 struct ath9k_channel *curchan = ah->curchan;
1231 ah->txchainmask = common->tx_chainmask;
1232 ah->rxchainmask = common->rx_chainmask;
1234 if (!ah->chip_fullsleep) {
1235 ath9k_hw_abortpcurecv(ah);
1236 if (!ath9k_hw_stopdmarecv(ah)) {
1237 ath_print(common, ATH_DBG_XMIT,
1238 "Failed to stop receive dma\n");
1239 bChannelChange = false;
1243 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1246 if (curchan && !ah->chip_fullsleep)
1247 ath9k_hw_getnf(ah, curchan);
1249 if (bChannelChange &&
1250 (ah->chip_fullsleep != true) &&
1251 (ah->curchan != NULL) &&
1252 (chan->channel != ah->curchan->channel) &&
1253 ((chan->channelFlags & CHANNEL_ALL) ==
1254 (ah->curchan->channelFlags & CHANNEL_ALL)) &&
1255 !AR_SREV_9280(ah)) {
1257 if (ath9k_hw_channel_change(ah, chan)) {
1258 ath9k_hw_loadnf(ah, ah->curchan);
1259 ath9k_hw_start_nfcal(ah, true);
1264 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1265 if (saveDefAntenna == 0)
1268 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1270 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1271 if (AR_SREV_9100(ah) ||
1272 (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)))
1273 tsf = ath9k_hw_gettsf64(ah);
1275 saveLedState = REG_READ(ah, AR_CFG_LED) &
1276 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1277 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1279 ath9k_hw_mark_phy_inactive(ah);
1281 /* Only required on the first reset */
1282 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1284 AR9271_RESET_POWER_DOWN_CONTROL,
1285 AR9271_RADIO_RF_RST);
1289 if (!ath9k_hw_chip_reset(ah, chan)) {
1290 ath_print(common, ATH_DBG_FATAL, "Chip reset failed\n");
1294 /* Only required on the first reset */
1295 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1296 ah->htc_reset_init = false;
1298 AR9271_RESET_POWER_DOWN_CONTROL,
1299 AR9271_GATE_MAC_CTL);
1305 ath9k_hw_settsf64(ah, tsf);
1307 if (AR_SREV_9280_10_OR_LATER(ah))
1308 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1310 if (!AR_SREV_9300_20_OR_LATER(ah))
1311 ar9002_hw_enable_async_fifo(ah);
1313 r = ath9k_hw_process_ini(ah, chan);
1318 * Some AR91xx SoC devices frequently fail to accept TSF writes
1319 * right after the chip reset. When that happens, write a new
1320 * value after the initvals have been applied, with an offset
1321 * based on measured time difference
1323 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1325 ath9k_hw_settsf64(ah, tsf);
1328 /* Setup MFP options for CCMP */
1329 if (AR_SREV_9280_20_OR_LATER(ah)) {
1330 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1331 * frames when constructing CCMP AAD. */
1332 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1334 ah->sw_mgmt_crypto = false;
1335 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1336 /* Disable hardware crypto for management frames */
1337 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1338 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1339 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1340 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1341 ah->sw_mgmt_crypto = true;
1343 ah->sw_mgmt_crypto = true;
1345 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1346 ath9k_hw_set_delta_slope(ah, chan);
1348 ath9k_hw_spur_mitigate_freq(ah, chan);
1349 ah->eep_ops->set_board_values(ah, chan);
1351 ath9k_hw_set_operating_mode(ah, ah->opmode);
1353 ENABLE_REGWRITE_BUFFER(ah);
1355 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1356 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
1358 | AR_STA_ID1_RTS_USE_DEF
1360 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1361 | ah->sta_id1_defaults);
1362 ath_hw_setbssidmask(common);
1363 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1364 ath9k_hw_write_associd(ah);
1365 REG_WRITE(ah, AR_ISR, ~0);
1366 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1368 REGWRITE_BUFFER_FLUSH(ah);
1369 DISABLE_REGWRITE_BUFFER(ah);
1371 r = ath9k_hw_rf_set_freq(ah, chan);
1375 ENABLE_REGWRITE_BUFFER(ah);
1377 for (i = 0; i < AR_NUM_DCU; i++)
1378 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1380 REGWRITE_BUFFER_FLUSH(ah);
1381 DISABLE_REGWRITE_BUFFER(ah);
1384 for (i = 0; i < ah->caps.total_queues; i++)
1385 ath9k_hw_resettxqueue(ah, i);
1387 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1388 ath9k_hw_ani_cache_ini_regs(ah);
1389 ath9k_hw_init_qos(ah);
1391 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1392 ath9k_enable_rfkill(ah);
1394 ath9k_hw_init_global_settings(ah);
1396 if (!AR_SREV_9300_20_OR_LATER(ah)) {
1397 ar9002_hw_update_async_fifo(ah);
1398 ar9002_hw_enable_wep_aggregation(ah);
1401 REG_WRITE(ah, AR_STA_ID1,
1402 REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
1404 ath9k_hw_set_dma(ah);
1406 REG_WRITE(ah, AR_OBS, 8);
1408 if (ah->config.rx_intr_mitigation) {
1409 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
1410 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
1413 if (ah->config.tx_intr_mitigation) {
1414 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1415 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1418 ath9k_hw_init_bb(ah, chan);
1420 if (!ath9k_hw_init_cal(ah, chan))
1423 ENABLE_REGWRITE_BUFFER(ah);
1425 ath9k_hw_restore_chainmask(ah);
1426 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1428 REGWRITE_BUFFER_FLUSH(ah);
1429 DISABLE_REGWRITE_BUFFER(ah);
1432 * For big endian systems turn on swapping for descriptors
1434 if (AR_SREV_9100(ah)) {
1436 mask = REG_READ(ah, AR_CFG);
1437 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1438 ath_print(common, ATH_DBG_RESET,
1439 "CFG Byte Swap Set 0x%x\n", mask);
1442 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1443 REG_WRITE(ah, AR_CFG, mask);
1444 ath_print(common, ATH_DBG_RESET,
1445 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
1448 if (common->bus_ops->ath_bus_type == ATH_USB) {
1449 /* Configure AR9271 target WLAN */
1450 if (AR_SREV_9271(ah))
1451 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1453 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1457 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1461 if (ah->btcoex_hw.enabled)
1462 ath9k_hw_btcoex_enable(ah);
1464 if (AR_SREV_9300_20_OR_LATER(ah))
1465 ar9003_hw_bb_watchdog_config(ah);
1469 EXPORT_SYMBOL(ath9k_hw_reset);
1471 /************************/
1472 /* Key Cache Management */
1473 /************************/
1475 bool ath9k_hw_keyreset(struct ath_hw *ah, u16 entry)
1479 if (entry >= ah->caps.keycache_size) {
1480 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1481 "keychache entry %u out of range\n", entry);
1485 keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
1487 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
1488 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
1489 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
1490 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
1491 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
1492 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
1493 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
1494 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
1496 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1497 u16 micentry = entry + 64;
1499 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
1500 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1501 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
1502 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1508 EXPORT_SYMBOL(ath9k_hw_keyreset);
1510 static bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
1513 u32 unicast_flag = AR_KEYTABLE_VALID;
1515 if (entry >= ah->caps.keycache_size) {
1516 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1517 "keychache entry %u out of range\n", entry);
1523 * AR_KEYTABLE_VALID indicates that the address is a unicast
1524 * address, which must match the transmitter address for
1525 * decrypting frames.
1526 * Not setting this bit allows the hardware to use the key
1527 * for multicast frame decryption.
1532 macHi = (mac[5] << 8) | mac[4];
1533 macLo = (mac[3] << 24) |
1538 macLo |= (macHi & 1) << 31;
1543 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
1544 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | unicast_flag);
1549 bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
1550 const struct ath9k_keyval *k,
1553 const struct ath9k_hw_capabilities *pCap = &ah->caps;
1554 struct ath_common *common = ath9k_hw_common(ah);
1555 u32 key0, key1, key2, key3, key4;
1558 if (entry >= pCap->keycache_size) {
1559 ath_print(common, ATH_DBG_FATAL,
1560 "keycache entry %u out of range\n", entry);
1564 switch (k->kv_type) {
1565 case ATH9K_CIPHER_AES_OCB:
1566 keyType = AR_KEYTABLE_TYPE_AES;
1568 case ATH9K_CIPHER_AES_CCM:
1569 if (!(pCap->hw_caps & ATH9K_HW_CAP_CIPHER_AESCCM)) {
1570 ath_print(common, ATH_DBG_ANY,
1571 "AES-CCM not supported by mac rev 0x%x\n",
1572 ah->hw_version.macRev);
1575 keyType = AR_KEYTABLE_TYPE_CCM;
1577 case ATH9K_CIPHER_TKIP:
1578 keyType = AR_KEYTABLE_TYPE_TKIP;
1579 if (ATH9K_IS_MIC_ENABLED(ah)
1580 && entry + 64 >= pCap->keycache_size) {
1581 ath_print(common, ATH_DBG_ANY,
1582 "entry %u inappropriate for TKIP\n", entry);
1586 case ATH9K_CIPHER_WEP:
1587 if (k->kv_len < WLAN_KEY_LEN_WEP40) {
1588 ath_print(common, ATH_DBG_ANY,
1589 "WEP key length %u too small\n", k->kv_len);
1592 if (k->kv_len <= WLAN_KEY_LEN_WEP40)
1593 keyType = AR_KEYTABLE_TYPE_40;
1594 else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1595 keyType = AR_KEYTABLE_TYPE_104;
1597 keyType = AR_KEYTABLE_TYPE_128;
1599 case ATH9K_CIPHER_CLR:
1600 keyType = AR_KEYTABLE_TYPE_CLR;
1603 ath_print(common, ATH_DBG_FATAL,
1604 "cipher %u not supported\n", k->kv_type);
1608 key0 = get_unaligned_le32(k->kv_val + 0);
1609 key1 = get_unaligned_le16(k->kv_val + 4);
1610 key2 = get_unaligned_le32(k->kv_val + 6);
1611 key3 = get_unaligned_le16(k->kv_val + 10);
1612 key4 = get_unaligned_le32(k->kv_val + 12);
1613 if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1617 * Note: Key cache registers access special memory area that requires
1618 * two 32-bit writes to actually update the values in the internal
1619 * memory. Consequently, the exact order and pairs used here must be
1623 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1624 u16 micentry = entry + 64;
1627 * Write inverted key[47:0] first to avoid Michael MIC errors
1628 * on frames that could be sent or received at the same time.
1629 * The correct key will be written in the end once everything
1632 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), ~key0);
1633 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), ~key1);
1635 /* Write key[95:48] */
1636 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1637 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1639 /* Write key[127:96] and key type */
1640 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1641 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1643 /* Write MAC address for the entry */
1644 (void) ath9k_hw_keysetmac(ah, entry, mac);
1646 if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) {
1648 * TKIP uses two key cache entries:
1649 * Michael MIC TX/RX keys in the same key cache entry
1650 * (idx = main index + 64):
1651 * key0 [31:0] = RX key [31:0]
1652 * key1 [15:0] = TX key [31:16]
1653 * key1 [31:16] = reserved
1654 * key2 [31:0] = RX key [63:32]
1655 * key3 [15:0] = TX key [15:0]
1656 * key3 [31:16] = reserved
1657 * key4 [31:0] = TX key [63:32]
1659 u32 mic0, mic1, mic2, mic3, mic4;
1661 mic0 = get_unaligned_le32(k->kv_mic + 0);
1662 mic2 = get_unaligned_le32(k->kv_mic + 4);
1663 mic1 = get_unaligned_le16(k->kv_txmic + 2) & 0xffff;
1664 mic3 = get_unaligned_le16(k->kv_txmic + 0) & 0xffff;
1665 mic4 = get_unaligned_le32(k->kv_txmic + 4);
1667 /* Write RX[31:0] and TX[31:16] */
1668 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1669 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), mic1);
1671 /* Write RX[63:32] and TX[15:0] */
1672 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1673 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), mic3);
1675 /* Write TX[63:32] and keyType(reserved) */
1676 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), mic4);
1677 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1678 AR_KEYTABLE_TYPE_CLR);
1682 * TKIP uses four key cache entries (two for group
1684 * Michael MIC TX/RX keys are in different key cache
1685 * entries (idx = main index + 64 for TX and
1686 * main index + 32 + 96 for RX):
1687 * key0 [31:0] = TX/RX MIC key [31:0]
1688 * key1 [31:0] = reserved
1689 * key2 [31:0] = TX/RX MIC key [63:32]
1690 * key3 [31:0] = reserved
1691 * key4 [31:0] = reserved
1693 * Upper layer code will call this function separately
1694 * for TX and RX keys when these registers offsets are
1699 mic0 = get_unaligned_le32(k->kv_mic + 0);
1700 mic2 = get_unaligned_le32(k->kv_mic + 4);
1702 /* Write MIC key[31:0] */
1703 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1704 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1706 /* Write MIC key[63:32] */
1707 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1708 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1710 /* Write TX[63:32] and keyType(reserved) */
1711 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
1712 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1713 AR_KEYTABLE_TYPE_CLR);
1716 /* MAC address registers are reserved for the MIC entry */
1717 REG_WRITE(ah, AR_KEYTABLE_MAC0(micentry), 0);
1718 REG_WRITE(ah, AR_KEYTABLE_MAC1(micentry), 0);
1721 * Write the correct (un-inverted) key[47:0] last to enable
1722 * TKIP now that all other registers are set with correct
1725 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1726 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1728 /* Write key[47:0] */
1729 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1730 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1732 /* Write key[95:48] */
1733 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1734 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1736 /* Write key[127:96] and key type */
1737 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1738 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1740 /* Write MAC address for the entry */
1741 (void) ath9k_hw_keysetmac(ah, entry, mac);
1746 EXPORT_SYMBOL(ath9k_hw_set_keycache_entry);
1748 /******************************/
1749 /* Power Management (Chipset) */
1750 /******************************/
1753 * Notify Power Mgt is disabled in self-generated frames.
1754 * If requested, force chip to sleep.
1756 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
1758 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1761 * Clear the RTC force wake bit to allow the
1762 * mac to go to sleep.
1764 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1765 AR_RTC_FORCE_WAKE_EN);
1766 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1767 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1769 /* Shutdown chip. Active low */
1770 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah))
1771 REG_CLR_BIT(ah, (AR_RTC_RESET),
1775 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
1776 if (AR_SREV_9300_20_OR_LATER(ah))
1777 REG_WRITE(ah, AR_WA,
1778 ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1782 * Notify Power Management is enabled in self-generating
1783 * frames. If request, set power mode of chip to
1784 * auto/normal. Duration in units of 128us (1/8 TU).
1786 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
1788 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1790 struct ath9k_hw_capabilities *pCap = &ah->caps;
1792 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1793 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1794 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1795 AR_RTC_FORCE_WAKE_ON_INT);
1798 * Clear the RTC force wake bit to allow the
1799 * mac to go to sleep.
1801 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1802 AR_RTC_FORCE_WAKE_EN);
1806 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
1807 if (AR_SREV_9300_20_OR_LATER(ah))
1808 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1811 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
1816 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
1817 if (AR_SREV_9300_20_OR_LATER(ah)) {
1818 REG_WRITE(ah, AR_WA, ah->WARegVal);
1823 if ((REG_READ(ah, AR_RTC_STATUS) &
1824 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1825 if (ath9k_hw_set_reset_reg(ah,
1826 ATH9K_RESET_POWER_ON) != true) {
1829 if (!AR_SREV_9300_20_OR_LATER(ah))
1830 ath9k_hw_init_pll(ah, NULL);
1832 if (AR_SREV_9100(ah))
1833 REG_SET_BIT(ah, AR_RTC_RESET,
1836 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1837 AR_RTC_FORCE_WAKE_EN);
1840 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1841 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1842 if (val == AR_RTC_STATUS_ON)
1845 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1846 AR_RTC_FORCE_WAKE_EN);
1849 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1850 "Failed to wakeup in %uus\n",
1851 POWER_UP_TIME / 20);
1856 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1861 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
1863 struct ath_common *common = ath9k_hw_common(ah);
1864 int status = true, setChip = true;
1865 static const char *modes[] = {
1872 if (ah->power_mode == mode)
1875 ath_print(common, ATH_DBG_RESET, "%s -> %s\n",
1876 modes[ah->power_mode], modes[mode]);
1879 case ATH9K_PM_AWAKE:
1880 status = ath9k_hw_set_power_awake(ah, setChip);
1882 case ATH9K_PM_FULL_SLEEP:
1883 ath9k_set_power_sleep(ah, setChip);
1884 ah->chip_fullsleep = true;
1886 case ATH9K_PM_NETWORK_SLEEP:
1887 ath9k_set_power_network_sleep(ah, setChip);
1890 ath_print(common, ATH_DBG_FATAL,
1891 "Unknown power mode %u\n", mode);
1894 ah->power_mode = mode;
1898 EXPORT_SYMBOL(ath9k_hw_setpower);
1900 /*******************/
1901 /* Beacon Handling */
1902 /*******************/
1904 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
1908 ah->beacon_interval = beacon_period;
1910 ENABLE_REGWRITE_BUFFER(ah);
1912 switch (ah->opmode) {
1913 case NL80211_IFTYPE_STATION:
1914 case NL80211_IFTYPE_MONITOR:
1915 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1916 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, 0xffff);
1917 REG_WRITE(ah, AR_NEXT_SWBA, 0x7ffff);
1918 flags |= AR_TBTT_TIMER_EN;
1920 case NL80211_IFTYPE_ADHOC:
1921 case NL80211_IFTYPE_MESH_POINT:
1922 REG_SET_BIT(ah, AR_TXCFG,
1923 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
1924 REG_WRITE(ah, AR_NEXT_NDP_TIMER,
1925 TU_TO_USEC(next_beacon +
1926 (ah->atim_window ? ah->
1928 flags |= AR_NDP_TIMER_EN;
1929 case NL80211_IFTYPE_AP:
1930 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1931 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT,
1932 TU_TO_USEC(next_beacon -
1934 dma_beacon_response_time));
1935 REG_WRITE(ah, AR_NEXT_SWBA,
1936 TU_TO_USEC(next_beacon -
1938 sw_beacon_response_time));
1940 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
1943 ath_print(ath9k_hw_common(ah), ATH_DBG_BEACON,
1944 "%s: unsupported opmode: %d\n",
1945 __func__, ah->opmode);
1950 REG_WRITE(ah, AR_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1951 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1952 REG_WRITE(ah, AR_SWBA_PERIOD, TU_TO_USEC(beacon_period));
1953 REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
1955 REGWRITE_BUFFER_FLUSH(ah);
1956 DISABLE_REGWRITE_BUFFER(ah);
1958 beacon_period &= ~ATH9K_BEACON_ENA;
1959 if (beacon_period & ATH9K_BEACON_RESET_TSF) {
1960 ath9k_hw_reset_tsf(ah);
1963 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
1965 EXPORT_SYMBOL(ath9k_hw_beaconinit);
1967 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
1968 const struct ath9k_beacon_state *bs)
1970 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
1971 struct ath9k_hw_capabilities *pCap = &ah->caps;
1972 struct ath_common *common = ath9k_hw_common(ah);
1974 ENABLE_REGWRITE_BUFFER(ah);
1976 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
1978 REG_WRITE(ah, AR_BEACON_PERIOD,
1979 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1980 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
1981 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1983 REGWRITE_BUFFER_FLUSH(ah);
1984 DISABLE_REGWRITE_BUFFER(ah);
1986 REG_RMW_FIELD(ah, AR_RSSI_THR,
1987 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
1989 beaconintval = bs->bs_intval & ATH9K_BEACON_PERIOD;
1991 if (bs->bs_sleepduration > beaconintval)
1992 beaconintval = bs->bs_sleepduration;
1994 dtimperiod = bs->bs_dtimperiod;
1995 if (bs->bs_sleepduration > dtimperiod)
1996 dtimperiod = bs->bs_sleepduration;
1998 if (beaconintval == dtimperiod)
1999 nextTbtt = bs->bs_nextdtim;
2001 nextTbtt = bs->bs_nexttbtt;
2003 ath_print(common, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
2004 ath_print(common, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
2005 ath_print(common, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
2006 ath_print(common, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
2008 ENABLE_REGWRITE_BUFFER(ah);
2010 REG_WRITE(ah, AR_NEXT_DTIM,
2011 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
2012 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
2014 REG_WRITE(ah, AR_SLEEP1,
2015 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
2016 | AR_SLEEP1_ASSUME_DTIM);
2018 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
2019 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
2021 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
2023 REG_WRITE(ah, AR_SLEEP2,
2024 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
2026 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
2027 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
2029 REGWRITE_BUFFER_FLUSH(ah);
2030 DISABLE_REGWRITE_BUFFER(ah);
2032 REG_SET_BIT(ah, AR_TIMER_MODE,
2033 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
2036 /* TSF Out of Range Threshold */
2037 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
2039 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
2041 /*******************/
2042 /* HW Capabilities */
2043 /*******************/
2045 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
2047 struct ath9k_hw_capabilities *pCap = &ah->caps;
2048 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2049 struct ath_common *common = ath9k_hw_common(ah);
2050 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
2052 u16 capField = 0, eeval;
2054 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
2055 regulatory->current_rd = eeval;
2057 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_1);
2058 if (AR_SREV_9285_10_OR_LATER(ah))
2059 eeval |= AR9285_RDEXT_DEFAULT;
2060 regulatory->current_rd_ext = eeval;
2062 capField = ah->eep_ops->get_eeprom(ah, EEP_OP_CAP);
2064 if (ah->opmode != NL80211_IFTYPE_AP &&
2065 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
2066 if (regulatory->current_rd == 0x64 ||
2067 regulatory->current_rd == 0x65)
2068 regulatory->current_rd += 5;
2069 else if (regulatory->current_rd == 0x41)
2070 regulatory->current_rd = 0x43;
2071 ath_print(common, ATH_DBG_REGULATORY,
2072 "regdomain mapped to 0x%x\n", regulatory->current_rd);
2075 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
2076 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
2077 ath_print(common, ATH_DBG_FATAL,
2078 "no band has been marked as supported in EEPROM.\n");
2082 bitmap_zero(pCap->wireless_modes, ATH9K_MODE_MAX);
2084 if (eeval & AR5416_OPFLAGS_11A) {
2085 set_bit(ATH9K_MODE_11A, pCap->wireless_modes);
2086 if (ah->config.ht_enable) {
2087 if (!(eeval & AR5416_OPFLAGS_N_5G_HT20))
2088 set_bit(ATH9K_MODE_11NA_HT20,
2089 pCap->wireless_modes);
2090 if (!(eeval & AR5416_OPFLAGS_N_5G_HT40)) {
2091 set_bit(ATH9K_MODE_11NA_HT40PLUS,
2092 pCap->wireless_modes);
2093 set_bit(ATH9K_MODE_11NA_HT40MINUS,
2094 pCap->wireless_modes);
2099 if (eeval & AR5416_OPFLAGS_11G) {
2100 set_bit(ATH9K_MODE_11G, pCap->wireless_modes);
2101 if (ah->config.ht_enable) {
2102 if (!(eeval & AR5416_OPFLAGS_N_2G_HT20))
2103 set_bit(ATH9K_MODE_11NG_HT20,
2104 pCap->wireless_modes);
2105 if (!(eeval & AR5416_OPFLAGS_N_2G_HT40)) {
2106 set_bit(ATH9K_MODE_11NG_HT40PLUS,
2107 pCap->wireless_modes);
2108 set_bit(ATH9K_MODE_11NG_HT40MINUS,
2109 pCap->wireless_modes);
2114 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
2116 * For AR9271 we will temporarilly uses the rx chainmax as read from
2119 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
2120 !(eeval & AR5416_OPFLAGS_11A) &&
2121 !(AR_SREV_9271(ah)))
2122 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
2123 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
2125 /* Use rx_chainmask from EEPROM. */
2126 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
2128 if (!(AR_SREV_9280(ah) && (ah->hw_version.macRev == 0)))
2129 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
2131 pCap->low_2ghz_chan = 2312;
2132 pCap->high_2ghz_chan = 2732;
2134 pCap->low_5ghz_chan = 4920;
2135 pCap->high_5ghz_chan = 6100;
2137 pCap->hw_caps &= ~ATH9K_HW_CAP_CIPHER_CKIP;
2138 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_TKIP;
2139 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_AESCCM;
2141 pCap->hw_caps &= ~ATH9K_HW_CAP_MIC_CKIP;
2142 pCap->hw_caps |= ATH9K_HW_CAP_MIC_TKIP;
2143 pCap->hw_caps |= ATH9K_HW_CAP_MIC_AESCCM;
2145 if (ah->config.ht_enable)
2146 pCap->hw_caps |= ATH9K_HW_CAP_HT;
2148 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
2150 pCap->hw_caps |= ATH9K_HW_CAP_GTT;
2151 pCap->hw_caps |= ATH9K_HW_CAP_VEOL;
2152 pCap->hw_caps |= ATH9K_HW_CAP_BSSIDMASK;
2153 pCap->hw_caps &= ~ATH9K_HW_CAP_MCAST_KEYSEARCH;
2155 if (capField & AR_EEPROM_EEPCAP_MAXQCU)
2156 pCap->total_queues =
2157 MS(capField, AR_EEPROM_EEPCAP_MAXQCU);
2159 pCap->total_queues = ATH9K_NUM_TX_QUEUES;
2161 if (capField & AR_EEPROM_EEPCAP_KC_ENTRIES)
2162 pCap->keycache_size =
2163 1 << MS(capField, AR_EEPROM_EEPCAP_KC_ENTRIES);
2165 pCap->keycache_size = AR_KEYTABLE_SIZE;
2167 pCap->hw_caps |= ATH9K_HW_CAP_FASTCC;
2169 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
2170 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD >> 1;
2172 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD;
2174 if (AR_SREV_9271(ah))
2175 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2176 else if (AR_DEVID_7010(ah))
2177 pCap->num_gpio_pins = AR7010_NUM_GPIO;
2178 else if (AR_SREV_9285_10_OR_LATER(ah))
2179 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2180 else if (AR_SREV_9280_10_OR_LATER(ah))
2181 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2183 pCap->num_gpio_pins = AR_NUM_GPIO;
2185 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
2186 pCap->hw_caps |= ATH9K_HW_CAP_CST;
2187 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2189 pCap->rts_aggr_limit = (8 * 1024);
2192 pCap->hw_caps |= ATH9K_HW_CAP_ENHANCEDPM;
2194 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
2195 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2196 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2198 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2199 ah->rfkill_polarity =
2200 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2202 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2205 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
2206 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2208 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2210 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2211 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2213 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2215 if (regulatory->current_rd_ext & (1 << REG_EXT_JAPAN_MIDBAND)) {
2217 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2218 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN |
2219 AR_EEPROM_EEREGCAP_EN_KK_U2 |
2220 AR_EEPROM_EEREGCAP_EN_KK_MIDBAND;
2223 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2224 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN;
2227 /* Advertise midband for AR5416 with FCC midband set in eeprom */
2228 if (regulatory->current_rd_ext & (1 << REG_EXT_FCC_MIDBAND) &&
2230 pCap->reg_cap |= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND;
2232 pCap->num_antcfg_5ghz =
2233 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_5GHZ);
2234 pCap->num_antcfg_2ghz =
2235 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
2237 if (AR_SREV_9280_10_OR_LATER(ah) &&
2238 ath9k_hw_btcoex_supported(ah)) {
2239 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
2240 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
2242 if (AR_SREV_9285(ah)) {
2243 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
2244 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
2246 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
2249 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
2252 if (AR_SREV_9300_20_OR_LATER(ah)) {
2253 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_LDPC |
2254 ATH9K_HW_CAP_FASTCLOCK;
2255 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2256 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2257 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2258 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2259 pCap->txs_len = sizeof(struct ar9003_txs);
2260 if (ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
2261 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
2263 pCap->tx_desc_len = sizeof(struct ath_desc);
2264 if (AR_SREV_9280_20(ah) &&
2265 ((ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) <=
2266 AR5416_EEP_MINOR_VER_16) ||
2267 ah->eep_ops->get_eeprom(ah, EEP_FSTCLK_5G)))
2268 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
2271 if (AR_SREV_9300_20_OR_LATER(ah))
2272 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2274 if (AR_SREV_9287_10_OR_LATER(ah) || AR_SREV_9271(ah))
2275 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
2280 /****************************/
2281 /* GPIO / RFKILL / Antennae */
2282 /****************************/
2284 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2288 u32 gpio_shift, tmp;
2291 addr = AR_GPIO_OUTPUT_MUX3;
2293 addr = AR_GPIO_OUTPUT_MUX2;
2295 addr = AR_GPIO_OUTPUT_MUX1;
2297 gpio_shift = (gpio % 6) * 5;
2299 if (AR_SREV_9280_20_OR_LATER(ah)
2300 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2301 REG_RMW(ah, addr, (type << gpio_shift),
2302 (0x1f << gpio_shift));
2304 tmp = REG_READ(ah, addr);
2305 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2306 tmp &= ~(0x1f << gpio_shift);
2307 tmp |= (type << gpio_shift);
2308 REG_WRITE(ah, addr, tmp);
2312 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2316 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2318 if (AR_DEVID_7010(ah)) {
2320 REG_RMW(ah, AR7010_GPIO_OE,
2321 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2322 (AR7010_GPIO_OE_MASK << gpio_shift));
2326 gpio_shift = gpio << 1;
2329 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2330 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2332 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2334 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2336 #define MS_REG_READ(x, y) \
2337 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2339 if (gpio >= ah->caps.num_gpio_pins)
2342 if (AR_DEVID_7010(ah)) {
2344 val = REG_READ(ah, AR7010_GPIO_IN);
2345 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2346 } else if (AR_SREV_9300_20_OR_LATER(ah))
2347 return MS_REG_READ(AR9300, gpio) != 0;
2348 else if (AR_SREV_9271(ah))
2349 return MS_REG_READ(AR9271, gpio) != 0;
2350 else if (AR_SREV_9287_10_OR_LATER(ah))
2351 return MS_REG_READ(AR9287, gpio) != 0;
2352 else if (AR_SREV_9285_10_OR_LATER(ah))
2353 return MS_REG_READ(AR9285, gpio) != 0;
2354 else if (AR_SREV_9280_10_OR_LATER(ah))
2355 return MS_REG_READ(AR928X, gpio) != 0;
2357 return MS_REG_READ(AR, gpio) != 0;
2359 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2361 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2366 if (AR_DEVID_7010(ah)) {
2368 REG_RMW(ah, AR7010_GPIO_OE,
2369 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2370 (AR7010_GPIO_OE_MASK << gpio_shift));
2374 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2375 gpio_shift = 2 * gpio;
2378 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2379 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2381 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2383 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2385 if (AR_DEVID_7010(ah)) {
2387 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2392 if (AR_SREV_9271(ah))
2395 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2398 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2400 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
2402 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
2404 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
2406 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2408 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2410 EXPORT_SYMBOL(ath9k_hw_setantenna);
2412 /*********************/
2413 /* General Operation */
2414 /*********************/
2416 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2418 u32 bits = REG_READ(ah, AR_RX_FILTER);
2419 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2421 if (phybits & AR_PHY_ERR_RADAR)
2422 bits |= ATH9K_RX_FILTER_PHYRADAR;
2423 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2424 bits |= ATH9K_RX_FILTER_PHYERR;
2428 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2430 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2434 ENABLE_REGWRITE_BUFFER(ah);
2436 REG_WRITE(ah, AR_RX_FILTER, bits);
2439 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2440 phybits |= AR_PHY_ERR_RADAR;
2441 if (bits & ATH9K_RX_FILTER_PHYERR)
2442 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2443 REG_WRITE(ah, AR_PHY_ERR, phybits);
2446 REG_WRITE(ah, AR_RXCFG,
2447 REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
2449 REG_WRITE(ah, AR_RXCFG,
2450 REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
2452 REGWRITE_BUFFER_FLUSH(ah);
2453 DISABLE_REGWRITE_BUFFER(ah);
2455 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2457 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2459 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2462 ath9k_hw_init_pll(ah, NULL);
2465 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2467 bool ath9k_hw_disable(struct ath_hw *ah)
2469 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2472 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2475 ath9k_hw_init_pll(ah, NULL);
2478 EXPORT_SYMBOL(ath9k_hw_disable);
2480 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
2482 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2483 struct ath9k_channel *chan = ah->curchan;
2484 struct ieee80211_channel *channel = chan->chan;
2486 regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
2488 ah->eep_ops->set_txpower(ah, chan,
2489 ath9k_regd_get_ctl(regulatory, chan),
2490 channel->max_antenna_gain * 2,
2491 channel->max_power * 2,
2492 min((u32) MAX_RATE_POWER,
2493 (u32) regulatory->power_limit));
2495 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2497 void ath9k_hw_setopmode(struct ath_hw *ah)
2499 ath9k_hw_set_operating_mode(ah, ah->opmode);
2501 EXPORT_SYMBOL(ath9k_hw_setopmode);
2503 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2505 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2506 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2508 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2510 void ath9k_hw_write_associd(struct ath_hw *ah)
2512 struct ath_common *common = ath9k_hw_common(ah);
2514 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2515 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2516 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2518 EXPORT_SYMBOL(ath9k_hw_write_associd);
2520 #define ATH9K_MAX_TSF_READ 10
2522 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2524 u32 tsf_lower, tsf_upper1, tsf_upper2;
2527 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2528 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2529 tsf_lower = REG_READ(ah, AR_TSF_L32);
2530 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2531 if (tsf_upper2 == tsf_upper1)
2533 tsf_upper1 = tsf_upper2;
2536 WARN_ON( i == ATH9K_MAX_TSF_READ );
2538 return (((u64)tsf_upper1 << 32) | tsf_lower);
2540 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2542 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2544 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2545 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2547 EXPORT_SYMBOL(ath9k_hw_settsf64);
2549 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2551 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2552 AH_TSF_WRITE_TIMEOUT))
2553 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
2554 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2556 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2558 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2560 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
2563 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2565 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2567 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2569 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2571 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2574 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2575 macmode = AR_2040_JOINED_RX_CLEAR;
2579 REG_WRITE(ah, AR_2040_MODE, macmode);
2582 /* HW Generic timers configuration */
2584 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2586 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2587 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2588 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2589 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2590 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2591 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2592 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2593 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2594 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2595 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2596 AR_NDP2_TIMER_MODE, 0x0002},
2597 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2598 AR_NDP2_TIMER_MODE, 0x0004},
2599 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2600 AR_NDP2_TIMER_MODE, 0x0008},
2601 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2602 AR_NDP2_TIMER_MODE, 0x0010},
2603 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2604 AR_NDP2_TIMER_MODE, 0x0020},
2605 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2606 AR_NDP2_TIMER_MODE, 0x0040},
2607 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2608 AR_NDP2_TIMER_MODE, 0x0080}
2611 /* HW generic timer primitives */
2613 /* compute and clear index of rightmost 1 */
2614 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2624 return timer_table->gen_timer_index[b];
2627 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2629 return REG_READ(ah, AR_TSF_L32);
2631 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2633 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2634 void (*trigger)(void *),
2635 void (*overflow)(void *),
2639 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2640 struct ath_gen_timer *timer;
2642 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2644 if (timer == NULL) {
2645 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2646 "Failed to allocate memory"
2647 "for hw timer[%d]\n", timer_index);
2651 /* allocate a hardware generic timer slot */
2652 timer_table->timers[timer_index] = timer;
2653 timer->index = timer_index;
2654 timer->trigger = trigger;
2655 timer->overflow = overflow;
2660 EXPORT_SYMBOL(ath_gen_timer_alloc);
2662 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2663 struct ath_gen_timer *timer,
2667 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2670 BUG_ON(!timer_period);
2672 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2674 tsf = ath9k_hw_gettsf32(ah);
2676 ath_print(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
2677 "curent tsf %x period %x"
2678 "timer_next %x\n", tsf, timer_period, timer_next);
2681 * Pull timer_next forward if the current TSF already passed it
2682 * because of software latency
2684 if (timer_next < tsf)
2685 timer_next = tsf + timer_period;
2688 * Program generic timer registers
2690 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2692 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2694 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2695 gen_tmr_configuration[timer->index].mode_mask);
2697 /* Enable both trigger and thresh interrupt masks */
2698 REG_SET_BIT(ah, AR_IMR_S5,
2699 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2700 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2702 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2704 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2706 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2708 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2709 (timer->index >= ATH_MAX_GEN_TIMER)) {
2713 /* Clear generic timer enable bits. */
2714 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2715 gen_tmr_configuration[timer->index].mode_mask);
2717 /* Disable both trigger and thresh interrupt masks */
2718 REG_CLR_BIT(ah, AR_IMR_S5,
2719 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2720 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2722 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
2724 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
2726 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2728 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2730 /* free the hardware generic timer slot */
2731 timer_table->timers[timer->index] = NULL;
2734 EXPORT_SYMBOL(ath_gen_timer_free);
2737 * Generic Timer Interrupts handling
2739 void ath_gen_timer_isr(struct ath_hw *ah)
2741 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2742 struct ath_gen_timer *timer;
2743 struct ath_common *common = ath9k_hw_common(ah);
2744 u32 trigger_mask, thresh_mask, index;
2746 /* get hardware generic timer interrupt status */
2747 trigger_mask = ah->intr_gen_timer_trigger;
2748 thresh_mask = ah->intr_gen_timer_thresh;
2749 trigger_mask &= timer_table->timer_mask.val;
2750 thresh_mask &= timer_table->timer_mask.val;
2752 trigger_mask &= ~thresh_mask;
2754 while (thresh_mask) {
2755 index = rightmost_index(timer_table, &thresh_mask);
2756 timer = timer_table->timers[index];
2758 ath_print(common, ATH_DBG_HWTIMER,
2759 "TSF overflow for Gen timer %d\n", index);
2760 timer->overflow(timer->arg);
2763 while (trigger_mask) {
2764 index = rightmost_index(timer_table, &trigger_mask);
2765 timer = timer_table->timers[index];
2767 ath_print(common, ATH_DBG_HWTIMER,
2768 "Gen timer[%d] trigger\n", index);
2769 timer->trigger(timer->arg);
2772 EXPORT_SYMBOL(ath_gen_timer_isr);
2778 void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2780 ah->htc_reset_init = true;
2782 EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2787 } ath_mac_bb_names[] = {
2788 /* Devices with external radios */
2789 { AR_SREV_VERSION_5416_PCI, "5416" },
2790 { AR_SREV_VERSION_5416_PCIE, "5418" },
2791 { AR_SREV_VERSION_9100, "9100" },
2792 { AR_SREV_VERSION_9160, "9160" },
2793 /* Single-chip solutions */
2794 { AR_SREV_VERSION_9280, "9280" },
2795 { AR_SREV_VERSION_9285, "9285" },
2796 { AR_SREV_VERSION_9287, "9287" },
2797 { AR_SREV_VERSION_9271, "9271" },
2798 { AR_SREV_VERSION_9300, "9300" },
2801 /* For devices with external radios */
2805 } ath_rf_names[] = {
2807 { AR_RAD5133_SREV_MAJOR, "5133" },
2808 { AR_RAD5122_SREV_MAJOR, "5122" },
2809 { AR_RAD2133_SREV_MAJOR, "2133" },
2810 { AR_RAD2122_SREV_MAJOR, "2122" }
2814 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2816 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2820 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
2821 if (ath_mac_bb_names[i].version == mac_bb_version) {
2822 return ath_mac_bb_names[i].name;
2830 * Return the RF name. "????" is returned if the RF is unknown.
2831 * Used for devices with external radios.
2833 static const char *ath9k_hw_rf_name(u16 rf_version)
2837 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
2838 if (ath_rf_names[i].version == rf_version) {
2839 return ath_rf_names[i].name;
2846 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
2850 /* chipsets >= AR9280 are single-chip */
2851 if (AR_SREV_9280_10_OR_LATER(ah)) {
2852 used = snprintf(hw_name, len,
2853 "Atheros AR%s Rev:%x",
2854 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2855 ah->hw_version.macRev);
2858 used = snprintf(hw_name, len,
2859 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2860 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2861 ah->hw_version.macRev,
2862 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
2863 AR_RADIO_SREV_MAJOR)),
2864 ah->hw_version.phyRev);
2867 hw_name[used] = '\0';
2869 EXPORT_SYMBOL(ath9k_hw_name);