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 ah->bb_watchdog_timeout_ms = 25;
615 common->state = ATH_HW_INITIALIZED;
620 int ath9k_hw_init(struct ath_hw *ah)
623 struct ath_common *common = ath9k_hw_common(ah);
625 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
626 switch (ah->hw_version.devid) {
627 case AR5416_DEVID_PCI:
628 case AR5416_DEVID_PCIE:
629 case AR5416_AR9100_DEVID:
630 case AR9160_DEVID_PCI:
631 case AR9280_DEVID_PCI:
632 case AR9280_DEVID_PCIE:
633 case AR9285_DEVID_PCIE:
634 case AR9287_DEVID_PCI:
635 case AR9287_DEVID_PCIE:
636 case AR2427_DEVID_PCIE:
637 case AR9300_DEVID_PCIE:
640 if (common->bus_ops->ath_bus_type == ATH_USB)
642 ath_print(common, ATH_DBG_FATAL,
643 "Hardware device ID 0x%04x not supported\n",
644 ah->hw_version.devid);
648 ret = __ath9k_hw_init(ah);
650 ath_print(common, ATH_DBG_FATAL,
651 "Unable to initialize hardware; "
652 "initialization status: %d\n", ret);
658 EXPORT_SYMBOL(ath9k_hw_init);
660 static void ath9k_hw_init_qos(struct ath_hw *ah)
662 ENABLE_REGWRITE_BUFFER(ah);
664 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
665 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
667 REG_WRITE(ah, AR_QOS_NO_ACK,
668 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
669 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
670 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
672 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
673 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
674 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
675 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
676 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
678 REGWRITE_BUFFER_FLUSH(ah);
679 DISABLE_REGWRITE_BUFFER(ah);
682 static void ath9k_hw_init_pll(struct ath_hw *ah,
683 struct ath9k_channel *chan)
685 u32 pll = ath9k_hw_compute_pll_control(ah, chan);
687 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
689 /* Switch the core clock for ar9271 to 117Mhz */
690 if (AR_SREV_9271(ah)) {
692 REG_WRITE(ah, 0x50040, 0x304);
695 udelay(RTC_PLL_SETTLE_DELAY);
697 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
700 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
701 enum nl80211_iftype opmode)
703 u32 imr_reg = AR_IMR_TXERR |
709 if (AR_SREV_9300_20_OR_LATER(ah)) {
710 imr_reg |= AR_IMR_RXOK_HP;
711 if (ah->config.rx_intr_mitigation)
712 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
714 imr_reg |= AR_IMR_RXOK_LP;
717 if (ah->config.rx_intr_mitigation)
718 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
720 imr_reg |= AR_IMR_RXOK;
723 if (ah->config.tx_intr_mitigation)
724 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
726 imr_reg |= AR_IMR_TXOK;
728 if (opmode == NL80211_IFTYPE_AP)
729 imr_reg |= AR_IMR_MIB;
731 ENABLE_REGWRITE_BUFFER(ah);
733 REG_WRITE(ah, AR_IMR, imr_reg);
734 ah->imrs2_reg |= AR_IMR_S2_GTT;
735 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
737 if (!AR_SREV_9100(ah)) {
738 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
739 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
740 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
743 REGWRITE_BUFFER_FLUSH(ah);
744 DISABLE_REGWRITE_BUFFER(ah);
746 if (AR_SREV_9300_20_OR_LATER(ah)) {
747 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
748 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
749 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
750 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
754 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
756 u32 val = ath9k_hw_mac_to_clks(ah, us);
757 val = min(val, (u32) 0xFFFF);
758 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
761 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
763 u32 val = ath9k_hw_mac_to_clks(ah, us);
764 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
765 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
768 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
770 u32 val = ath9k_hw_mac_to_clks(ah, us);
771 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
772 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
775 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
778 ath_print(ath9k_hw_common(ah), ATH_DBG_XMIT,
779 "bad global tx timeout %u\n", tu);
780 ah->globaltxtimeout = (u32) -1;
783 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
784 ah->globaltxtimeout = tu;
789 void ath9k_hw_init_global_settings(struct ath_hw *ah)
791 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
796 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
799 if (ah->misc_mode != 0)
800 REG_WRITE(ah, AR_PCU_MISC,
801 REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
803 if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ)
808 /* As defined by IEEE 802.11-2007 17.3.8.6 */
809 slottime = ah->slottime + 3 * ah->coverage_class;
810 acktimeout = slottime + sifstime;
813 * Workaround for early ACK timeouts, add an offset to match the
814 * initval's 64us ack timeout value.
815 * This was initially only meant to work around an issue with delayed
816 * BA frames in some implementations, but it has been found to fix ACK
817 * timeout issues in other cases as well.
819 if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
820 acktimeout += 64 - sifstime - ah->slottime;
822 ath9k_hw_setslottime(ah, slottime);
823 ath9k_hw_set_ack_timeout(ah, acktimeout);
824 ath9k_hw_set_cts_timeout(ah, acktimeout);
825 if (ah->globaltxtimeout != (u32) -1)
826 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
828 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
830 void ath9k_hw_deinit(struct ath_hw *ah)
832 struct ath_common *common = ath9k_hw_common(ah);
834 if (common->state < ATH_HW_INITIALIZED)
837 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
840 ath9k_hw_rf_free_ext_banks(ah);
842 EXPORT_SYMBOL(ath9k_hw_deinit);
848 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
850 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
854 else if (IS_CHAN_G(chan))
862 /****************************************/
863 /* Reset and Channel Switching Routines */
864 /****************************************/
866 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
868 struct ath_common *common = ath9k_hw_common(ah);
871 ENABLE_REGWRITE_BUFFER(ah);
874 * set AHB_MODE not to do cacheline prefetches
876 if (!AR_SREV_9300_20_OR_LATER(ah)) {
877 regval = REG_READ(ah, AR_AHB_MODE);
878 REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
882 * let mac dma reads be in 128 byte chunks
884 regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
885 REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
887 REGWRITE_BUFFER_FLUSH(ah);
888 DISABLE_REGWRITE_BUFFER(ah);
891 * Restore TX Trigger Level to its pre-reset value.
892 * The initial value depends on whether aggregation is enabled, and is
893 * adjusted whenever underruns are detected.
895 if (!AR_SREV_9300_20_OR_LATER(ah))
896 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
898 ENABLE_REGWRITE_BUFFER(ah);
901 * let mac dma writes be in 128 byte chunks
903 regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
904 REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
907 * Setup receive FIFO threshold to hold off TX activities
909 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
911 if (AR_SREV_9300_20_OR_LATER(ah)) {
912 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
913 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
915 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
916 ah->caps.rx_status_len);
920 * reduce the number of usable entries in PCU TXBUF to avoid
921 * wrap around issues.
923 if (AR_SREV_9285(ah)) {
924 /* For AR9285 the number of Fifos are reduced to half.
925 * So set the usable tx buf size also to half to
926 * avoid data/delimiter underruns
928 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
929 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
930 } else if (!AR_SREV_9271(ah)) {
931 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
932 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
935 REGWRITE_BUFFER_FLUSH(ah);
936 DISABLE_REGWRITE_BUFFER(ah);
938 if (AR_SREV_9300_20_OR_LATER(ah))
939 ath9k_hw_reset_txstatus_ring(ah);
942 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
946 val = REG_READ(ah, AR_STA_ID1);
947 val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
949 case NL80211_IFTYPE_AP:
950 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
951 | AR_STA_ID1_KSRCH_MODE);
952 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
954 case NL80211_IFTYPE_ADHOC:
955 case NL80211_IFTYPE_MESH_POINT:
956 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
957 | AR_STA_ID1_KSRCH_MODE);
958 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
960 case NL80211_IFTYPE_STATION:
961 case NL80211_IFTYPE_MONITOR:
962 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
967 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
968 u32 *coef_mantissa, u32 *coef_exponent)
970 u32 coef_exp, coef_man;
972 for (coef_exp = 31; coef_exp > 0; coef_exp--)
973 if ((coef_scaled >> coef_exp) & 0x1)
976 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
978 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
980 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
981 *coef_exponent = coef_exp - 16;
984 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
989 if (AR_SREV_9100(ah)) {
990 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
991 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
992 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
993 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
994 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
997 ENABLE_REGWRITE_BUFFER(ah);
999 if (AR_SREV_9300_20_OR_LATER(ah)) {
1000 REG_WRITE(ah, AR_WA, ah->WARegVal);
1004 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1005 AR_RTC_FORCE_WAKE_ON_INT);
1007 if (AR_SREV_9100(ah)) {
1008 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1009 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1011 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1013 (AR_INTR_SYNC_LOCAL_TIMEOUT |
1014 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1016 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1019 if (!AR_SREV_9300_20_OR_LATER(ah))
1021 REG_WRITE(ah, AR_RC, val);
1023 } else if (!AR_SREV_9300_20_OR_LATER(ah))
1024 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1026 rst_flags = AR_RTC_RC_MAC_WARM;
1027 if (type == ATH9K_RESET_COLD)
1028 rst_flags |= AR_RTC_RC_MAC_COLD;
1031 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1033 REGWRITE_BUFFER_FLUSH(ah);
1034 DISABLE_REGWRITE_BUFFER(ah);
1038 REG_WRITE(ah, AR_RTC_RC, 0);
1039 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1040 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1041 "RTC stuck in MAC reset\n");
1045 if (!AR_SREV_9100(ah))
1046 REG_WRITE(ah, AR_RC, 0);
1048 if (AR_SREV_9100(ah))
1054 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1056 ENABLE_REGWRITE_BUFFER(ah);
1058 if (AR_SREV_9300_20_OR_LATER(ah)) {
1059 REG_WRITE(ah, AR_WA, ah->WARegVal);
1063 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1064 AR_RTC_FORCE_WAKE_ON_INT);
1066 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1067 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1069 REG_WRITE(ah, AR_RTC_RESET, 0);
1072 REGWRITE_BUFFER_FLUSH(ah);
1073 DISABLE_REGWRITE_BUFFER(ah);
1075 if (!AR_SREV_9300_20_OR_LATER(ah))
1078 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1079 REG_WRITE(ah, AR_RC, 0);
1081 REG_WRITE(ah, AR_RTC_RESET, 1);
1083 if (!ath9k_hw_wait(ah,
1088 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1089 "RTC not waking up\n");
1093 ath9k_hw_read_revisions(ah);
1095 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1098 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1100 if (AR_SREV_9300_20_OR_LATER(ah)) {
1101 REG_WRITE(ah, AR_WA, ah->WARegVal);
1105 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1106 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1109 case ATH9K_RESET_POWER_ON:
1110 return ath9k_hw_set_reset_power_on(ah);
1111 case ATH9K_RESET_WARM:
1112 case ATH9K_RESET_COLD:
1113 return ath9k_hw_set_reset(ah, type);
1119 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1120 struct ath9k_channel *chan)
1122 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1123 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1125 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1128 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1131 ah->chip_fullsleep = false;
1132 ath9k_hw_init_pll(ah, chan);
1133 ath9k_hw_set_rfmode(ah, chan);
1138 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1139 struct ath9k_channel *chan)
1141 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1142 struct ath_common *common = ath9k_hw_common(ah);
1143 struct ieee80211_channel *channel = chan->chan;
1147 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1148 if (ath9k_hw_numtxpending(ah, qnum)) {
1149 ath_print(common, ATH_DBG_QUEUE,
1150 "Transmit frames pending on "
1151 "queue %d\n", qnum);
1156 if (!ath9k_hw_rfbus_req(ah)) {
1157 ath_print(common, ATH_DBG_FATAL,
1158 "Could not kill baseband RX\n");
1162 ath9k_hw_set_channel_regs(ah, chan);
1164 r = ath9k_hw_rf_set_freq(ah, chan);
1166 ath_print(common, ATH_DBG_FATAL,
1167 "Failed to set channel\n");
1171 ah->eep_ops->set_txpower(ah, chan,
1172 ath9k_regd_get_ctl(regulatory, chan),
1173 channel->max_antenna_gain * 2,
1174 channel->max_power * 2,
1175 min((u32) MAX_RATE_POWER,
1176 (u32) regulatory->power_limit));
1178 ath9k_hw_rfbus_done(ah);
1180 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1181 ath9k_hw_set_delta_slope(ah, chan);
1183 ath9k_hw_spur_mitigate_freq(ah, chan);
1188 bool ath9k_hw_check_alive(struct ath_hw *ah)
1193 if (AR_SREV_9285_10_OR_LATER(ah))
1197 reg = REG_READ(ah, AR_OBS_BUS_1);
1199 if ((reg & 0x7E7FFFEF) == 0x00702400)
1202 switch (reg & 0x7E000B00) {
1210 } while (count-- > 0);
1214 EXPORT_SYMBOL(ath9k_hw_check_alive);
1216 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1217 struct ath9k_hw_cal_data *caldata, bool bChannelChange)
1219 struct ath_common *common = ath9k_hw_common(ah);
1221 struct ath9k_channel *curchan = ah->curchan;
1227 ah->txchainmask = common->tx_chainmask;
1228 ah->rxchainmask = common->rx_chainmask;
1230 if (!ah->chip_fullsleep) {
1231 ath9k_hw_abortpcurecv(ah);
1232 if (!ath9k_hw_stopdmarecv(ah)) {
1233 ath_print(common, ATH_DBG_XMIT,
1234 "Failed to stop receive dma\n");
1235 bChannelChange = false;
1239 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1242 if (curchan && !ah->chip_fullsleep && ah->caldata)
1243 ath9k_hw_getnf(ah, curchan);
1245 ah->caldata = caldata;
1247 (chan->channel != caldata->channel ||
1248 (chan->channelFlags & ~CHANNEL_CW_INT) !=
1249 (caldata->channelFlags & ~CHANNEL_CW_INT))) {
1250 /* Operating channel changed, reset channel calibration data */
1251 memset(caldata, 0, sizeof(*caldata));
1252 ath9k_init_nfcal_hist_buffer(ah, chan);
1255 if (bChannelChange &&
1256 (ah->chip_fullsleep != true) &&
1257 (ah->curchan != NULL) &&
1258 (chan->channel != ah->curchan->channel) &&
1259 ((chan->channelFlags & CHANNEL_ALL) ==
1260 (ah->curchan->channelFlags & CHANNEL_ALL)) &&
1261 !AR_SREV_9280(ah)) {
1263 if (ath9k_hw_channel_change(ah, chan)) {
1264 ath9k_hw_loadnf(ah, ah->curchan);
1265 ath9k_hw_start_nfcal(ah, true);
1270 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1271 if (saveDefAntenna == 0)
1274 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1276 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1277 if (AR_SREV_9100(ah) ||
1278 (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)))
1279 tsf = ath9k_hw_gettsf64(ah);
1281 saveLedState = REG_READ(ah, AR_CFG_LED) &
1282 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1283 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1285 ath9k_hw_mark_phy_inactive(ah);
1287 /* Only required on the first reset */
1288 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1290 AR9271_RESET_POWER_DOWN_CONTROL,
1291 AR9271_RADIO_RF_RST);
1295 if (!ath9k_hw_chip_reset(ah, chan)) {
1296 ath_print(common, ATH_DBG_FATAL, "Chip reset failed\n");
1300 /* Only required on the first reset */
1301 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1302 ah->htc_reset_init = false;
1304 AR9271_RESET_POWER_DOWN_CONTROL,
1305 AR9271_GATE_MAC_CTL);
1311 ath9k_hw_settsf64(ah, tsf);
1313 if (AR_SREV_9280_10_OR_LATER(ah))
1314 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1316 if (!AR_SREV_9300_20_OR_LATER(ah))
1317 ar9002_hw_enable_async_fifo(ah);
1319 r = ath9k_hw_process_ini(ah, chan);
1324 * Some AR91xx SoC devices frequently fail to accept TSF writes
1325 * right after the chip reset. When that happens, write a new
1326 * value after the initvals have been applied, with an offset
1327 * based on measured time difference
1329 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1331 ath9k_hw_settsf64(ah, tsf);
1334 /* Setup MFP options for CCMP */
1335 if (AR_SREV_9280_20_OR_LATER(ah)) {
1336 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1337 * frames when constructing CCMP AAD. */
1338 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1340 ah->sw_mgmt_crypto = false;
1341 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1342 /* Disable hardware crypto for management frames */
1343 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1344 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1345 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1346 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1347 ah->sw_mgmt_crypto = true;
1349 ah->sw_mgmt_crypto = true;
1351 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1352 ath9k_hw_set_delta_slope(ah, chan);
1354 ath9k_hw_spur_mitigate_freq(ah, chan);
1355 ah->eep_ops->set_board_values(ah, chan);
1357 ath9k_hw_set_operating_mode(ah, ah->opmode);
1359 ENABLE_REGWRITE_BUFFER(ah);
1361 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1362 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
1364 | AR_STA_ID1_RTS_USE_DEF
1366 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1367 | ah->sta_id1_defaults);
1368 ath_hw_setbssidmask(common);
1369 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1370 ath9k_hw_write_associd(ah);
1371 REG_WRITE(ah, AR_ISR, ~0);
1372 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1374 REGWRITE_BUFFER_FLUSH(ah);
1375 DISABLE_REGWRITE_BUFFER(ah);
1377 r = ath9k_hw_rf_set_freq(ah, chan);
1381 ENABLE_REGWRITE_BUFFER(ah);
1383 for (i = 0; i < AR_NUM_DCU; i++)
1384 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1386 REGWRITE_BUFFER_FLUSH(ah);
1387 DISABLE_REGWRITE_BUFFER(ah);
1390 for (i = 0; i < ah->caps.total_queues; i++)
1391 ath9k_hw_resettxqueue(ah, i);
1393 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1394 ath9k_hw_ani_cache_ini_regs(ah);
1395 ath9k_hw_init_qos(ah);
1397 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1398 ath9k_enable_rfkill(ah);
1400 ath9k_hw_init_global_settings(ah);
1402 if (!AR_SREV_9300_20_OR_LATER(ah)) {
1403 ar9002_hw_update_async_fifo(ah);
1404 ar9002_hw_enable_wep_aggregation(ah);
1407 REG_WRITE(ah, AR_STA_ID1,
1408 REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
1410 ath9k_hw_set_dma(ah);
1412 REG_WRITE(ah, AR_OBS, 8);
1414 if (ah->config.rx_intr_mitigation) {
1415 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
1416 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
1419 if (ah->config.tx_intr_mitigation) {
1420 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1421 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1424 ath9k_hw_init_bb(ah, chan);
1426 if (!ath9k_hw_init_cal(ah, chan))
1429 ENABLE_REGWRITE_BUFFER(ah);
1431 ath9k_hw_restore_chainmask(ah);
1432 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1434 REGWRITE_BUFFER_FLUSH(ah);
1435 DISABLE_REGWRITE_BUFFER(ah);
1438 * For big endian systems turn on swapping for descriptors
1440 if (AR_SREV_9100(ah)) {
1442 mask = REG_READ(ah, AR_CFG);
1443 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1444 ath_print(common, ATH_DBG_RESET,
1445 "CFG Byte Swap Set 0x%x\n", mask);
1448 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1449 REG_WRITE(ah, AR_CFG, mask);
1450 ath_print(common, ATH_DBG_RESET,
1451 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
1454 if (common->bus_ops->ath_bus_type == ATH_USB) {
1455 /* Configure AR9271 target WLAN */
1456 if (AR_SREV_9271(ah))
1457 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1459 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1463 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1467 if (ah->btcoex_hw.enabled)
1468 ath9k_hw_btcoex_enable(ah);
1470 if (AR_SREV_9300_20_OR_LATER(ah))
1471 ar9003_hw_bb_watchdog_config(ah);
1475 EXPORT_SYMBOL(ath9k_hw_reset);
1477 /************************/
1478 /* Key Cache Management */
1479 /************************/
1481 bool ath9k_hw_keyreset(struct ath_hw *ah, u16 entry)
1485 if (entry >= ah->caps.keycache_size) {
1486 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1487 "keychache entry %u out of range\n", entry);
1491 keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
1493 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
1494 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
1495 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
1496 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
1497 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
1498 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
1499 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
1500 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
1502 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1503 u16 micentry = entry + 64;
1505 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
1506 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1507 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
1508 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1514 EXPORT_SYMBOL(ath9k_hw_keyreset);
1516 static bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
1519 u32 unicast_flag = AR_KEYTABLE_VALID;
1521 if (entry >= ah->caps.keycache_size) {
1522 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1523 "keychache entry %u out of range\n", entry);
1529 * AR_KEYTABLE_VALID indicates that the address is a unicast
1530 * address, which must match the transmitter address for
1531 * decrypting frames.
1532 * Not setting this bit allows the hardware to use the key
1533 * for multicast frame decryption.
1538 macHi = (mac[5] << 8) | mac[4];
1539 macLo = (mac[3] << 24) |
1544 macLo |= (macHi & 1) << 31;
1549 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
1550 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | unicast_flag);
1555 bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
1556 const struct ath9k_keyval *k,
1559 const struct ath9k_hw_capabilities *pCap = &ah->caps;
1560 struct ath_common *common = ath9k_hw_common(ah);
1561 u32 key0, key1, key2, key3, key4;
1564 if (entry >= pCap->keycache_size) {
1565 ath_print(common, ATH_DBG_FATAL,
1566 "keycache entry %u out of range\n", entry);
1570 switch (k->kv_type) {
1571 case ATH9K_CIPHER_AES_OCB:
1572 keyType = AR_KEYTABLE_TYPE_AES;
1574 case ATH9K_CIPHER_AES_CCM:
1575 if (!(pCap->hw_caps & ATH9K_HW_CAP_CIPHER_AESCCM)) {
1576 ath_print(common, ATH_DBG_ANY,
1577 "AES-CCM not supported by mac rev 0x%x\n",
1578 ah->hw_version.macRev);
1581 keyType = AR_KEYTABLE_TYPE_CCM;
1583 case ATH9K_CIPHER_TKIP:
1584 keyType = AR_KEYTABLE_TYPE_TKIP;
1585 if (ATH9K_IS_MIC_ENABLED(ah)
1586 && entry + 64 >= pCap->keycache_size) {
1587 ath_print(common, ATH_DBG_ANY,
1588 "entry %u inappropriate for TKIP\n", entry);
1592 case ATH9K_CIPHER_WEP:
1593 if (k->kv_len < WLAN_KEY_LEN_WEP40) {
1594 ath_print(common, ATH_DBG_ANY,
1595 "WEP key length %u too small\n", k->kv_len);
1598 if (k->kv_len <= WLAN_KEY_LEN_WEP40)
1599 keyType = AR_KEYTABLE_TYPE_40;
1600 else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1601 keyType = AR_KEYTABLE_TYPE_104;
1603 keyType = AR_KEYTABLE_TYPE_128;
1605 case ATH9K_CIPHER_CLR:
1606 keyType = AR_KEYTABLE_TYPE_CLR;
1609 ath_print(common, ATH_DBG_FATAL,
1610 "cipher %u not supported\n", k->kv_type);
1614 key0 = get_unaligned_le32(k->kv_val + 0);
1615 key1 = get_unaligned_le16(k->kv_val + 4);
1616 key2 = get_unaligned_le32(k->kv_val + 6);
1617 key3 = get_unaligned_le16(k->kv_val + 10);
1618 key4 = get_unaligned_le32(k->kv_val + 12);
1619 if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1623 * Note: Key cache registers access special memory area that requires
1624 * two 32-bit writes to actually update the values in the internal
1625 * memory. Consequently, the exact order and pairs used here must be
1629 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1630 u16 micentry = entry + 64;
1633 * Write inverted key[47:0] first to avoid Michael MIC errors
1634 * on frames that could be sent or received at the same time.
1635 * The correct key will be written in the end once everything
1638 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), ~key0);
1639 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), ~key1);
1641 /* Write key[95:48] */
1642 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1643 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1645 /* Write key[127:96] and key type */
1646 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1647 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1649 /* Write MAC address for the entry */
1650 (void) ath9k_hw_keysetmac(ah, entry, mac);
1652 if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) {
1654 * TKIP uses two key cache entries:
1655 * Michael MIC TX/RX keys in the same key cache entry
1656 * (idx = main index + 64):
1657 * key0 [31:0] = RX key [31:0]
1658 * key1 [15:0] = TX key [31:16]
1659 * key1 [31:16] = reserved
1660 * key2 [31:0] = RX key [63:32]
1661 * key3 [15:0] = TX key [15:0]
1662 * key3 [31:16] = reserved
1663 * key4 [31:0] = TX key [63:32]
1665 u32 mic0, mic1, mic2, mic3, mic4;
1667 mic0 = get_unaligned_le32(k->kv_mic + 0);
1668 mic2 = get_unaligned_le32(k->kv_mic + 4);
1669 mic1 = get_unaligned_le16(k->kv_txmic + 2) & 0xffff;
1670 mic3 = get_unaligned_le16(k->kv_txmic + 0) & 0xffff;
1671 mic4 = get_unaligned_le32(k->kv_txmic + 4);
1673 /* Write RX[31:0] and TX[31:16] */
1674 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1675 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), mic1);
1677 /* Write RX[63:32] and TX[15:0] */
1678 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1679 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), mic3);
1681 /* Write TX[63:32] and keyType(reserved) */
1682 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), mic4);
1683 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1684 AR_KEYTABLE_TYPE_CLR);
1688 * TKIP uses four key cache entries (two for group
1690 * Michael MIC TX/RX keys are in different key cache
1691 * entries (idx = main index + 64 for TX and
1692 * main index + 32 + 96 for RX):
1693 * key0 [31:0] = TX/RX MIC key [31:0]
1694 * key1 [31:0] = reserved
1695 * key2 [31:0] = TX/RX MIC key [63:32]
1696 * key3 [31:0] = reserved
1697 * key4 [31:0] = reserved
1699 * Upper layer code will call this function separately
1700 * for TX and RX keys when these registers offsets are
1705 mic0 = get_unaligned_le32(k->kv_mic + 0);
1706 mic2 = get_unaligned_le32(k->kv_mic + 4);
1708 /* Write MIC key[31:0] */
1709 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1710 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1712 /* Write MIC key[63:32] */
1713 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1714 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1716 /* Write TX[63:32] and keyType(reserved) */
1717 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
1718 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1719 AR_KEYTABLE_TYPE_CLR);
1722 /* MAC address registers are reserved for the MIC entry */
1723 REG_WRITE(ah, AR_KEYTABLE_MAC0(micentry), 0);
1724 REG_WRITE(ah, AR_KEYTABLE_MAC1(micentry), 0);
1727 * Write the correct (un-inverted) key[47:0] last to enable
1728 * TKIP now that all other registers are set with correct
1731 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1732 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1734 /* Write key[47:0] */
1735 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1736 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1738 /* Write key[95:48] */
1739 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1740 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1742 /* Write key[127:96] and key type */
1743 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1744 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1746 /* Write MAC address for the entry */
1747 (void) ath9k_hw_keysetmac(ah, entry, mac);
1752 EXPORT_SYMBOL(ath9k_hw_set_keycache_entry);
1754 /******************************/
1755 /* Power Management (Chipset) */
1756 /******************************/
1759 * Notify Power Mgt is disabled in self-generated frames.
1760 * If requested, force chip to sleep.
1762 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
1764 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1767 * Clear the RTC force wake bit to allow the
1768 * mac to go to sleep.
1770 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1771 AR_RTC_FORCE_WAKE_EN);
1772 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1773 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1775 /* Shutdown chip. Active low */
1776 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah))
1777 REG_CLR_BIT(ah, (AR_RTC_RESET),
1781 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
1782 if (AR_SREV_9300_20_OR_LATER(ah))
1783 REG_WRITE(ah, AR_WA,
1784 ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1788 * Notify Power Management is enabled in self-generating
1789 * frames. If request, set power mode of chip to
1790 * auto/normal. Duration in units of 128us (1/8 TU).
1792 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
1794 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1796 struct ath9k_hw_capabilities *pCap = &ah->caps;
1798 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1799 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1800 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1801 AR_RTC_FORCE_WAKE_ON_INT);
1804 * Clear the RTC force wake bit to allow the
1805 * mac to go to sleep.
1807 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1808 AR_RTC_FORCE_WAKE_EN);
1812 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
1813 if (AR_SREV_9300_20_OR_LATER(ah))
1814 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1817 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
1822 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
1823 if (AR_SREV_9300_20_OR_LATER(ah)) {
1824 REG_WRITE(ah, AR_WA, ah->WARegVal);
1829 if ((REG_READ(ah, AR_RTC_STATUS) &
1830 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1831 if (ath9k_hw_set_reset_reg(ah,
1832 ATH9K_RESET_POWER_ON) != true) {
1835 if (!AR_SREV_9300_20_OR_LATER(ah))
1836 ath9k_hw_init_pll(ah, NULL);
1838 if (AR_SREV_9100(ah))
1839 REG_SET_BIT(ah, AR_RTC_RESET,
1842 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1843 AR_RTC_FORCE_WAKE_EN);
1846 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1847 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1848 if (val == AR_RTC_STATUS_ON)
1851 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1852 AR_RTC_FORCE_WAKE_EN);
1855 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1856 "Failed to wakeup in %uus\n",
1857 POWER_UP_TIME / 20);
1862 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1867 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
1869 struct ath_common *common = ath9k_hw_common(ah);
1870 int status = true, setChip = true;
1871 static const char *modes[] = {
1878 if (ah->power_mode == mode)
1881 ath_print(common, ATH_DBG_RESET, "%s -> %s\n",
1882 modes[ah->power_mode], modes[mode]);
1885 case ATH9K_PM_AWAKE:
1886 status = ath9k_hw_set_power_awake(ah, setChip);
1888 case ATH9K_PM_FULL_SLEEP:
1889 ath9k_set_power_sleep(ah, setChip);
1890 ah->chip_fullsleep = true;
1892 case ATH9K_PM_NETWORK_SLEEP:
1893 ath9k_set_power_network_sleep(ah, setChip);
1896 ath_print(common, ATH_DBG_FATAL,
1897 "Unknown power mode %u\n", mode);
1900 ah->power_mode = mode;
1904 EXPORT_SYMBOL(ath9k_hw_setpower);
1906 /*******************/
1907 /* Beacon Handling */
1908 /*******************/
1910 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
1914 ah->beacon_interval = beacon_period;
1916 ENABLE_REGWRITE_BUFFER(ah);
1918 switch (ah->opmode) {
1919 case NL80211_IFTYPE_STATION:
1920 case NL80211_IFTYPE_MONITOR:
1921 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1922 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, 0xffff);
1923 REG_WRITE(ah, AR_NEXT_SWBA, 0x7ffff);
1924 flags |= AR_TBTT_TIMER_EN;
1926 case NL80211_IFTYPE_ADHOC:
1927 case NL80211_IFTYPE_MESH_POINT:
1928 REG_SET_BIT(ah, AR_TXCFG,
1929 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
1930 REG_WRITE(ah, AR_NEXT_NDP_TIMER,
1931 TU_TO_USEC(next_beacon +
1932 (ah->atim_window ? ah->
1934 flags |= AR_NDP_TIMER_EN;
1935 case NL80211_IFTYPE_AP:
1936 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1937 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT,
1938 TU_TO_USEC(next_beacon -
1940 dma_beacon_response_time));
1941 REG_WRITE(ah, AR_NEXT_SWBA,
1942 TU_TO_USEC(next_beacon -
1944 sw_beacon_response_time));
1946 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
1949 ath_print(ath9k_hw_common(ah), ATH_DBG_BEACON,
1950 "%s: unsupported opmode: %d\n",
1951 __func__, ah->opmode);
1956 REG_WRITE(ah, AR_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1957 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1958 REG_WRITE(ah, AR_SWBA_PERIOD, TU_TO_USEC(beacon_period));
1959 REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
1961 REGWRITE_BUFFER_FLUSH(ah);
1962 DISABLE_REGWRITE_BUFFER(ah);
1964 beacon_period &= ~ATH9K_BEACON_ENA;
1965 if (beacon_period & ATH9K_BEACON_RESET_TSF) {
1966 ath9k_hw_reset_tsf(ah);
1969 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
1971 EXPORT_SYMBOL(ath9k_hw_beaconinit);
1973 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
1974 const struct ath9k_beacon_state *bs)
1976 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
1977 struct ath9k_hw_capabilities *pCap = &ah->caps;
1978 struct ath_common *common = ath9k_hw_common(ah);
1980 ENABLE_REGWRITE_BUFFER(ah);
1982 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
1984 REG_WRITE(ah, AR_BEACON_PERIOD,
1985 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1986 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
1987 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1989 REGWRITE_BUFFER_FLUSH(ah);
1990 DISABLE_REGWRITE_BUFFER(ah);
1992 REG_RMW_FIELD(ah, AR_RSSI_THR,
1993 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
1995 beaconintval = bs->bs_intval & ATH9K_BEACON_PERIOD;
1997 if (bs->bs_sleepduration > beaconintval)
1998 beaconintval = bs->bs_sleepduration;
2000 dtimperiod = bs->bs_dtimperiod;
2001 if (bs->bs_sleepduration > dtimperiod)
2002 dtimperiod = bs->bs_sleepduration;
2004 if (beaconintval == dtimperiod)
2005 nextTbtt = bs->bs_nextdtim;
2007 nextTbtt = bs->bs_nexttbtt;
2009 ath_print(common, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
2010 ath_print(common, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
2011 ath_print(common, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
2012 ath_print(common, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
2014 ENABLE_REGWRITE_BUFFER(ah);
2016 REG_WRITE(ah, AR_NEXT_DTIM,
2017 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
2018 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
2020 REG_WRITE(ah, AR_SLEEP1,
2021 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
2022 | AR_SLEEP1_ASSUME_DTIM);
2024 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
2025 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
2027 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
2029 REG_WRITE(ah, AR_SLEEP2,
2030 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
2032 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
2033 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
2035 REGWRITE_BUFFER_FLUSH(ah);
2036 DISABLE_REGWRITE_BUFFER(ah);
2038 REG_SET_BIT(ah, AR_TIMER_MODE,
2039 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
2042 /* TSF Out of Range Threshold */
2043 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
2045 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
2047 /*******************/
2048 /* HW Capabilities */
2049 /*******************/
2051 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
2053 struct ath9k_hw_capabilities *pCap = &ah->caps;
2054 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2055 struct ath_common *common = ath9k_hw_common(ah);
2056 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
2058 u16 capField = 0, eeval;
2060 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
2061 regulatory->current_rd = eeval;
2063 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_1);
2064 if (AR_SREV_9285_10_OR_LATER(ah))
2065 eeval |= AR9285_RDEXT_DEFAULT;
2066 regulatory->current_rd_ext = eeval;
2068 capField = ah->eep_ops->get_eeprom(ah, EEP_OP_CAP);
2070 if (ah->opmode != NL80211_IFTYPE_AP &&
2071 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
2072 if (regulatory->current_rd == 0x64 ||
2073 regulatory->current_rd == 0x65)
2074 regulatory->current_rd += 5;
2075 else if (regulatory->current_rd == 0x41)
2076 regulatory->current_rd = 0x43;
2077 ath_print(common, ATH_DBG_REGULATORY,
2078 "regdomain mapped to 0x%x\n", regulatory->current_rd);
2081 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
2082 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
2083 ath_print(common, ATH_DBG_FATAL,
2084 "no band has been marked as supported in EEPROM.\n");
2088 bitmap_zero(pCap->wireless_modes, ATH9K_MODE_MAX);
2090 if (eeval & AR5416_OPFLAGS_11A) {
2091 set_bit(ATH9K_MODE_11A, pCap->wireless_modes);
2092 if (ah->config.ht_enable) {
2093 if (!(eeval & AR5416_OPFLAGS_N_5G_HT20))
2094 set_bit(ATH9K_MODE_11NA_HT20,
2095 pCap->wireless_modes);
2096 if (!(eeval & AR5416_OPFLAGS_N_5G_HT40)) {
2097 set_bit(ATH9K_MODE_11NA_HT40PLUS,
2098 pCap->wireless_modes);
2099 set_bit(ATH9K_MODE_11NA_HT40MINUS,
2100 pCap->wireless_modes);
2105 if (eeval & AR5416_OPFLAGS_11G) {
2106 set_bit(ATH9K_MODE_11G, pCap->wireless_modes);
2107 if (ah->config.ht_enable) {
2108 if (!(eeval & AR5416_OPFLAGS_N_2G_HT20))
2109 set_bit(ATH9K_MODE_11NG_HT20,
2110 pCap->wireless_modes);
2111 if (!(eeval & AR5416_OPFLAGS_N_2G_HT40)) {
2112 set_bit(ATH9K_MODE_11NG_HT40PLUS,
2113 pCap->wireless_modes);
2114 set_bit(ATH9K_MODE_11NG_HT40MINUS,
2115 pCap->wireless_modes);
2120 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
2122 * For AR9271 we will temporarilly uses the rx chainmax as read from
2125 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
2126 !(eeval & AR5416_OPFLAGS_11A) &&
2127 !(AR_SREV_9271(ah)))
2128 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
2129 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
2131 /* Use rx_chainmask from EEPROM. */
2132 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
2134 if (!(AR_SREV_9280(ah) && (ah->hw_version.macRev == 0)))
2135 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
2137 pCap->low_2ghz_chan = 2312;
2138 pCap->high_2ghz_chan = 2732;
2140 pCap->low_5ghz_chan = 4920;
2141 pCap->high_5ghz_chan = 6100;
2143 pCap->hw_caps &= ~ATH9K_HW_CAP_CIPHER_CKIP;
2144 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_TKIP;
2145 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_AESCCM;
2147 pCap->hw_caps &= ~ATH9K_HW_CAP_MIC_CKIP;
2148 pCap->hw_caps |= ATH9K_HW_CAP_MIC_TKIP;
2149 pCap->hw_caps |= ATH9K_HW_CAP_MIC_AESCCM;
2151 if (ah->config.ht_enable)
2152 pCap->hw_caps |= ATH9K_HW_CAP_HT;
2154 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
2156 pCap->hw_caps |= ATH9K_HW_CAP_GTT;
2157 pCap->hw_caps |= ATH9K_HW_CAP_VEOL;
2158 pCap->hw_caps |= ATH9K_HW_CAP_BSSIDMASK;
2159 pCap->hw_caps &= ~ATH9K_HW_CAP_MCAST_KEYSEARCH;
2161 if (capField & AR_EEPROM_EEPCAP_MAXQCU)
2162 pCap->total_queues =
2163 MS(capField, AR_EEPROM_EEPCAP_MAXQCU);
2165 pCap->total_queues = ATH9K_NUM_TX_QUEUES;
2167 if (capField & AR_EEPROM_EEPCAP_KC_ENTRIES)
2168 pCap->keycache_size =
2169 1 << MS(capField, AR_EEPROM_EEPCAP_KC_ENTRIES);
2171 pCap->keycache_size = AR_KEYTABLE_SIZE;
2173 pCap->hw_caps |= ATH9K_HW_CAP_FASTCC;
2175 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
2176 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD >> 1;
2178 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD;
2180 if (AR_SREV_9271(ah))
2181 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2182 else if (AR_DEVID_7010(ah))
2183 pCap->num_gpio_pins = AR7010_NUM_GPIO;
2184 else if (AR_SREV_9285_10_OR_LATER(ah))
2185 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2186 else if (AR_SREV_9280_10_OR_LATER(ah))
2187 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2189 pCap->num_gpio_pins = AR_NUM_GPIO;
2191 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
2192 pCap->hw_caps |= ATH9K_HW_CAP_CST;
2193 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2195 pCap->rts_aggr_limit = (8 * 1024);
2198 pCap->hw_caps |= ATH9K_HW_CAP_ENHANCEDPM;
2200 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
2201 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2202 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2204 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2205 ah->rfkill_polarity =
2206 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2208 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2211 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
2212 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2214 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2216 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2217 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2219 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2221 if (regulatory->current_rd_ext & (1 << REG_EXT_JAPAN_MIDBAND)) {
2223 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2224 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN |
2225 AR_EEPROM_EEREGCAP_EN_KK_U2 |
2226 AR_EEPROM_EEREGCAP_EN_KK_MIDBAND;
2229 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2230 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN;
2233 /* Advertise midband for AR5416 with FCC midband set in eeprom */
2234 if (regulatory->current_rd_ext & (1 << REG_EXT_FCC_MIDBAND) &&
2236 pCap->reg_cap |= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND;
2238 pCap->num_antcfg_5ghz =
2239 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_5GHZ);
2240 pCap->num_antcfg_2ghz =
2241 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
2243 if (AR_SREV_9280_10_OR_LATER(ah) &&
2244 ath9k_hw_btcoex_supported(ah)) {
2245 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
2246 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
2248 if (AR_SREV_9285(ah)) {
2249 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
2250 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
2252 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
2255 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
2258 if (AR_SREV_9300_20_OR_LATER(ah)) {
2259 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_LDPC |
2260 ATH9K_HW_CAP_FASTCLOCK;
2261 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2262 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2263 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2264 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2265 pCap->txs_len = sizeof(struct ar9003_txs);
2266 if (ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
2267 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
2269 pCap->tx_desc_len = sizeof(struct ath_desc);
2270 if (AR_SREV_9280_20(ah) &&
2271 ((ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) <=
2272 AR5416_EEP_MINOR_VER_16) ||
2273 ah->eep_ops->get_eeprom(ah, EEP_FSTCLK_5G)))
2274 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
2277 if (AR_SREV_9300_20_OR_LATER(ah))
2278 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2280 if (AR_SREV_9287_10_OR_LATER(ah) || AR_SREV_9271(ah))
2281 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
2286 /****************************/
2287 /* GPIO / RFKILL / Antennae */
2288 /****************************/
2290 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2294 u32 gpio_shift, tmp;
2297 addr = AR_GPIO_OUTPUT_MUX3;
2299 addr = AR_GPIO_OUTPUT_MUX2;
2301 addr = AR_GPIO_OUTPUT_MUX1;
2303 gpio_shift = (gpio % 6) * 5;
2305 if (AR_SREV_9280_20_OR_LATER(ah)
2306 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2307 REG_RMW(ah, addr, (type << gpio_shift),
2308 (0x1f << gpio_shift));
2310 tmp = REG_READ(ah, addr);
2311 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2312 tmp &= ~(0x1f << gpio_shift);
2313 tmp |= (type << gpio_shift);
2314 REG_WRITE(ah, addr, tmp);
2318 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2322 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2324 if (AR_DEVID_7010(ah)) {
2326 REG_RMW(ah, AR7010_GPIO_OE,
2327 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2328 (AR7010_GPIO_OE_MASK << gpio_shift));
2332 gpio_shift = gpio << 1;
2335 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2336 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2338 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2340 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2342 #define MS_REG_READ(x, y) \
2343 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2345 if (gpio >= ah->caps.num_gpio_pins)
2348 if (AR_DEVID_7010(ah)) {
2350 val = REG_READ(ah, AR7010_GPIO_IN);
2351 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2352 } else if (AR_SREV_9300_20_OR_LATER(ah))
2353 return MS_REG_READ(AR9300, gpio) != 0;
2354 else if (AR_SREV_9271(ah))
2355 return MS_REG_READ(AR9271, gpio) != 0;
2356 else if (AR_SREV_9287_10_OR_LATER(ah))
2357 return MS_REG_READ(AR9287, gpio) != 0;
2358 else if (AR_SREV_9285_10_OR_LATER(ah))
2359 return MS_REG_READ(AR9285, gpio) != 0;
2360 else if (AR_SREV_9280_10_OR_LATER(ah))
2361 return MS_REG_READ(AR928X, gpio) != 0;
2363 return MS_REG_READ(AR, gpio) != 0;
2365 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2367 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2372 if (AR_DEVID_7010(ah)) {
2374 REG_RMW(ah, AR7010_GPIO_OE,
2375 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2376 (AR7010_GPIO_OE_MASK << gpio_shift));
2380 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2381 gpio_shift = 2 * gpio;
2384 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2385 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2387 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2389 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2391 if (AR_DEVID_7010(ah)) {
2393 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2398 if (AR_SREV_9271(ah))
2401 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2404 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2406 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
2408 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
2410 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
2412 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2414 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2416 EXPORT_SYMBOL(ath9k_hw_setantenna);
2418 /*********************/
2419 /* General Operation */
2420 /*********************/
2422 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2424 u32 bits = REG_READ(ah, AR_RX_FILTER);
2425 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2427 if (phybits & AR_PHY_ERR_RADAR)
2428 bits |= ATH9K_RX_FILTER_PHYRADAR;
2429 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2430 bits |= ATH9K_RX_FILTER_PHYERR;
2434 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2436 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2440 ENABLE_REGWRITE_BUFFER(ah);
2442 REG_WRITE(ah, AR_RX_FILTER, bits);
2445 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2446 phybits |= AR_PHY_ERR_RADAR;
2447 if (bits & ATH9K_RX_FILTER_PHYERR)
2448 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2449 REG_WRITE(ah, AR_PHY_ERR, phybits);
2452 REG_WRITE(ah, AR_RXCFG,
2453 REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
2455 REG_WRITE(ah, AR_RXCFG,
2456 REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
2458 REGWRITE_BUFFER_FLUSH(ah);
2459 DISABLE_REGWRITE_BUFFER(ah);
2461 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2463 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2465 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2468 ath9k_hw_init_pll(ah, NULL);
2471 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2473 bool ath9k_hw_disable(struct ath_hw *ah)
2475 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2478 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2481 ath9k_hw_init_pll(ah, NULL);
2484 EXPORT_SYMBOL(ath9k_hw_disable);
2486 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
2488 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2489 struct ath9k_channel *chan = ah->curchan;
2490 struct ieee80211_channel *channel = chan->chan;
2492 regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
2494 ah->eep_ops->set_txpower(ah, chan,
2495 ath9k_regd_get_ctl(regulatory, chan),
2496 channel->max_antenna_gain * 2,
2497 channel->max_power * 2,
2498 min((u32) MAX_RATE_POWER,
2499 (u32) regulatory->power_limit));
2501 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2503 void ath9k_hw_setopmode(struct ath_hw *ah)
2505 ath9k_hw_set_operating_mode(ah, ah->opmode);
2507 EXPORT_SYMBOL(ath9k_hw_setopmode);
2509 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2511 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2512 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2514 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2516 void ath9k_hw_write_associd(struct ath_hw *ah)
2518 struct ath_common *common = ath9k_hw_common(ah);
2520 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2521 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2522 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2524 EXPORT_SYMBOL(ath9k_hw_write_associd);
2526 #define ATH9K_MAX_TSF_READ 10
2528 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2530 u32 tsf_lower, tsf_upper1, tsf_upper2;
2533 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2534 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2535 tsf_lower = REG_READ(ah, AR_TSF_L32);
2536 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2537 if (tsf_upper2 == tsf_upper1)
2539 tsf_upper1 = tsf_upper2;
2542 WARN_ON( i == ATH9K_MAX_TSF_READ );
2544 return (((u64)tsf_upper1 << 32) | tsf_lower);
2546 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2548 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2550 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2551 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2553 EXPORT_SYMBOL(ath9k_hw_settsf64);
2555 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2557 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2558 AH_TSF_WRITE_TIMEOUT))
2559 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
2560 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2562 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2564 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2566 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
2569 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2571 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2573 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2575 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2577 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2580 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2581 macmode = AR_2040_JOINED_RX_CLEAR;
2585 REG_WRITE(ah, AR_2040_MODE, macmode);
2588 /* HW Generic timers configuration */
2590 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
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_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2595 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2596 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2597 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2598 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2599 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2600 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2601 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2602 AR_NDP2_TIMER_MODE, 0x0002},
2603 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2604 AR_NDP2_TIMER_MODE, 0x0004},
2605 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2606 AR_NDP2_TIMER_MODE, 0x0008},
2607 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2608 AR_NDP2_TIMER_MODE, 0x0010},
2609 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2610 AR_NDP2_TIMER_MODE, 0x0020},
2611 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2612 AR_NDP2_TIMER_MODE, 0x0040},
2613 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2614 AR_NDP2_TIMER_MODE, 0x0080}
2617 /* HW generic timer primitives */
2619 /* compute and clear index of rightmost 1 */
2620 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2630 return timer_table->gen_timer_index[b];
2633 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2635 return REG_READ(ah, AR_TSF_L32);
2637 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2639 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2640 void (*trigger)(void *),
2641 void (*overflow)(void *),
2645 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2646 struct ath_gen_timer *timer;
2648 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2650 if (timer == NULL) {
2651 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2652 "Failed to allocate memory"
2653 "for hw timer[%d]\n", timer_index);
2657 /* allocate a hardware generic timer slot */
2658 timer_table->timers[timer_index] = timer;
2659 timer->index = timer_index;
2660 timer->trigger = trigger;
2661 timer->overflow = overflow;
2666 EXPORT_SYMBOL(ath_gen_timer_alloc);
2668 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2669 struct ath_gen_timer *timer,
2673 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2676 BUG_ON(!timer_period);
2678 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2680 tsf = ath9k_hw_gettsf32(ah);
2682 ath_print(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
2683 "curent tsf %x period %x"
2684 "timer_next %x\n", tsf, timer_period, timer_next);
2687 * Pull timer_next forward if the current TSF already passed it
2688 * because of software latency
2690 if (timer_next < tsf)
2691 timer_next = tsf + timer_period;
2694 * Program generic timer registers
2696 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2698 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2700 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2701 gen_tmr_configuration[timer->index].mode_mask);
2703 /* Enable both trigger and thresh interrupt masks */
2704 REG_SET_BIT(ah, AR_IMR_S5,
2705 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2706 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2708 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2710 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2712 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2714 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2715 (timer->index >= ATH_MAX_GEN_TIMER)) {
2719 /* Clear generic timer enable bits. */
2720 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2721 gen_tmr_configuration[timer->index].mode_mask);
2723 /* Disable both trigger and thresh interrupt masks */
2724 REG_CLR_BIT(ah, AR_IMR_S5,
2725 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2726 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2728 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
2730 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
2732 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2734 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2736 /* free the hardware generic timer slot */
2737 timer_table->timers[timer->index] = NULL;
2740 EXPORT_SYMBOL(ath_gen_timer_free);
2743 * Generic Timer Interrupts handling
2745 void ath_gen_timer_isr(struct ath_hw *ah)
2747 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2748 struct ath_gen_timer *timer;
2749 struct ath_common *common = ath9k_hw_common(ah);
2750 u32 trigger_mask, thresh_mask, index;
2752 /* get hardware generic timer interrupt status */
2753 trigger_mask = ah->intr_gen_timer_trigger;
2754 thresh_mask = ah->intr_gen_timer_thresh;
2755 trigger_mask &= timer_table->timer_mask.val;
2756 thresh_mask &= timer_table->timer_mask.val;
2758 trigger_mask &= ~thresh_mask;
2760 while (thresh_mask) {
2761 index = rightmost_index(timer_table, &thresh_mask);
2762 timer = timer_table->timers[index];
2764 ath_print(common, ATH_DBG_HWTIMER,
2765 "TSF overflow for Gen timer %d\n", index);
2766 timer->overflow(timer->arg);
2769 while (trigger_mask) {
2770 index = rightmost_index(timer_table, &trigger_mask);
2771 timer = timer_table->timers[index];
2773 ath_print(common, ATH_DBG_HWTIMER,
2774 "Gen timer[%d] trigger\n", index);
2775 timer->trigger(timer->arg);
2778 EXPORT_SYMBOL(ath_gen_timer_isr);
2784 void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2786 ah->htc_reset_init = true;
2788 EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2793 } ath_mac_bb_names[] = {
2794 /* Devices with external radios */
2795 { AR_SREV_VERSION_5416_PCI, "5416" },
2796 { AR_SREV_VERSION_5416_PCIE, "5418" },
2797 { AR_SREV_VERSION_9100, "9100" },
2798 { AR_SREV_VERSION_9160, "9160" },
2799 /* Single-chip solutions */
2800 { AR_SREV_VERSION_9280, "9280" },
2801 { AR_SREV_VERSION_9285, "9285" },
2802 { AR_SREV_VERSION_9287, "9287" },
2803 { AR_SREV_VERSION_9271, "9271" },
2804 { AR_SREV_VERSION_9300, "9300" },
2807 /* For devices with external radios */
2811 } ath_rf_names[] = {
2813 { AR_RAD5133_SREV_MAJOR, "5133" },
2814 { AR_RAD5122_SREV_MAJOR, "5122" },
2815 { AR_RAD2133_SREV_MAJOR, "2133" },
2816 { AR_RAD2122_SREV_MAJOR, "2122" }
2820 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2822 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2826 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
2827 if (ath_mac_bb_names[i].version == mac_bb_version) {
2828 return ath_mac_bb_names[i].name;
2836 * Return the RF name. "????" is returned if the RF is unknown.
2837 * Used for devices with external radios.
2839 static const char *ath9k_hw_rf_name(u16 rf_version)
2843 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
2844 if (ath_rf_names[i].version == rf_version) {
2845 return ath_rf_names[i].name;
2852 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
2856 /* chipsets >= AR9280 are single-chip */
2857 if (AR_SREV_9280_10_OR_LATER(ah)) {
2858 used = snprintf(hw_name, len,
2859 "Atheros AR%s Rev:%x",
2860 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2861 ah->hw_version.macRev);
2864 used = snprintf(hw_name, len,
2865 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2866 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2867 ah->hw_version.macRev,
2868 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
2869 AR_RADIO_SREV_MAJOR)),
2870 ah->hw_version.phyRev);
2873 hw_name[used] = '\0';
2875 EXPORT_SYMBOL(ath9k_hw_name);