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_9280(ah) && !ah->is_pciexpress)) {
536 ah->config.serialize_regmode =
539 ah->config.serialize_regmode =
544 ath_print(common, ATH_DBG_RESET, "serialize_regmode is %d\n",
545 ah->config.serialize_regmode);
547 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
548 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
550 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
552 if (!ath9k_hw_macversion_supported(ah)) {
553 ath_print(common, ATH_DBG_FATAL,
554 "Mac Chip Rev 0x%02x.%x is not supported by "
555 "this driver\n", ah->hw_version.macVersion,
556 ah->hw_version.macRev);
560 if (AR_SREV_9271(ah) || AR_SREV_9100(ah))
561 ah->is_pciexpress = false;
563 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
564 ath9k_hw_init_cal_settings(ah);
566 ah->ani_function = ATH9K_ANI_ALL;
567 if (AR_SREV_9280_10_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah))
568 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
569 if (!AR_SREV_9300_20_OR_LATER(ah))
570 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
572 ath9k_hw_init_mode_regs(ah);
575 * Read back AR_WA into a permanent copy and set bits 14 and 17.
576 * We need to do this to avoid RMW of this register. We cannot
577 * read the reg when chip is asleep.
579 ah->WARegVal = REG_READ(ah, AR_WA);
580 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
581 AR_WA_ASPM_TIMER_BASED_DISABLE);
583 if (ah->is_pciexpress)
584 ath9k_hw_configpcipowersave(ah, 0, 0);
586 ath9k_hw_disablepcie(ah);
588 if (!AR_SREV_9300_20_OR_LATER(ah))
589 ar9002_hw_cck_chan14_spread(ah);
591 r = ath9k_hw_post_init(ah);
595 ath9k_hw_init_mode_gain_regs(ah);
596 r = ath9k_hw_fill_cap_info(ah);
600 r = ath9k_hw_init_macaddr(ah);
602 ath_print(common, ATH_DBG_FATAL,
603 "Failed to initialize MAC address\n");
607 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
608 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
610 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
612 if (AR_SREV_9300_20_OR_LATER(ah))
613 ar9003_hw_set_nf_limits(ah);
615 ath9k_init_nfcal_hist_buffer(ah);
616 ah->bb_watchdog_timeout_ms = 25;
618 common->state = ATH_HW_INITIALIZED;
623 int ath9k_hw_init(struct ath_hw *ah)
626 struct ath_common *common = ath9k_hw_common(ah);
628 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
629 switch (ah->hw_version.devid) {
630 case AR5416_DEVID_PCI:
631 case AR5416_DEVID_PCIE:
632 case AR5416_AR9100_DEVID:
633 case AR9160_DEVID_PCI:
634 case AR9280_DEVID_PCI:
635 case AR9280_DEVID_PCIE:
636 case AR9285_DEVID_PCIE:
637 case AR9287_DEVID_PCI:
638 case AR9287_DEVID_PCIE:
639 case AR2427_DEVID_PCIE:
640 case AR9300_DEVID_PCIE:
643 if (common->bus_ops->ath_bus_type == ATH_USB)
645 ath_print(common, ATH_DBG_FATAL,
646 "Hardware device ID 0x%04x not supported\n",
647 ah->hw_version.devid);
651 ret = __ath9k_hw_init(ah);
653 ath_print(common, ATH_DBG_FATAL,
654 "Unable to initialize hardware; "
655 "initialization status: %d\n", ret);
661 EXPORT_SYMBOL(ath9k_hw_init);
663 static void ath9k_hw_init_qos(struct ath_hw *ah)
665 ENABLE_REGWRITE_BUFFER(ah);
667 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
668 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
670 REG_WRITE(ah, AR_QOS_NO_ACK,
671 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
672 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
673 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
675 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
676 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
677 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
678 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
679 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
681 REGWRITE_BUFFER_FLUSH(ah);
682 DISABLE_REGWRITE_BUFFER(ah);
685 static void ath9k_hw_init_pll(struct ath_hw *ah,
686 struct ath9k_channel *chan)
688 u32 pll = ath9k_hw_compute_pll_control(ah, chan);
690 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
692 /* Switch the core clock for ar9271 to 117Mhz */
693 if (AR_SREV_9271(ah)) {
695 REG_WRITE(ah, 0x50040, 0x304);
698 udelay(RTC_PLL_SETTLE_DELAY);
700 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
703 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
704 enum nl80211_iftype opmode)
706 u32 imr_reg = AR_IMR_TXERR |
712 if (AR_SREV_9300_20_OR_LATER(ah)) {
713 imr_reg |= AR_IMR_RXOK_HP;
714 if (ah->config.rx_intr_mitigation)
715 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
717 imr_reg |= AR_IMR_RXOK_LP;
720 if (ah->config.rx_intr_mitigation)
721 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
723 imr_reg |= AR_IMR_RXOK;
726 if (ah->config.tx_intr_mitigation)
727 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
729 imr_reg |= AR_IMR_TXOK;
731 if (opmode == NL80211_IFTYPE_AP)
732 imr_reg |= AR_IMR_MIB;
734 ENABLE_REGWRITE_BUFFER(ah);
736 REG_WRITE(ah, AR_IMR, imr_reg);
737 ah->imrs2_reg |= AR_IMR_S2_GTT;
738 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
740 if (!AR_SREV_9100(ah)) {
741 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
742 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
743 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
746 REGWRITE_BUFFER_FLUSH(ah);
747 DISABLE_REGWRITE_BUFFER(ah);
749 if (AR_SREV_9300_20_OR_LATER(ah)) {
750 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
751 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
752 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
753 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
757 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
759 u32 val = ath9k_hw_mac_to_clks(ah, us);
760 val = min(val, (u32) 0xFFFF);
761 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
764 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
766 u32 val = ath9k_hw_mac_to_clks(ah, us);
767 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
768 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
771 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
773 u32 val = ath9k_hw_mac_to_clks(ah, us);
774 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
775 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
778 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
781 ath_print(ath9k_hw_common(ah), ATH_DBG_XMIT,
782 "bad global tx timeout %u\n", tu);
783 ah->globaltxtimeout = (u32) -1;
786 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
787 ah->globaltxtimeout = tu;
792 void ath9k_hw_init_global_settings(struct ath_hw *ah)
794 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
799 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
802 if (ah->misc_mode != 0)
803 REG_WRITE(ah, AR_PCU_MISC,
804 REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
806 if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ)
811 /* As defined by IEEE 802.11-2007 17.3.8.6 */
812 slottime = ah->slottime + 3 * ah->coverage_class;
813 acktimeout = slottime + sifstime;
816 * Workaround for early ACK timeouts, add an offset to match the
817 * initval's 64us ack timeout value.
818 * This was initially only meant to work around an issue with delayed
819 * BA frames in some implementations, but it has been found to fix ACK
820 * timeout issues in other cases as well.
822 if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
823 acktimeout += 64 - sifstime - ah->slottime;
825 ath9k_hw_setslottime(ah, slottime);
826 ath9k_hw_set_ack_timeout(ah, acktimeout);
827 ath9k_hw_set_cts_timeout(ah, acktimeout);
828 if (ah->globaltxtimeout != (u32) -1)
829 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
831 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
833 void ath9k_hw_deinit(struct ath_hw *ah)
835 struct ath_common *common = ath9k_hw_common(ah);
837 if (common->state < ATH_HW_INITIALIZED)
840 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
843 ath9k_hw_rf_free_ext_banks(ah);
845 EXPORT_SYMBOL(ath9k_hw_deinit);
851 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
853 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
857 else if (IS_CHAN_G(chan))
865 /****************************************/
866 /* Reset and Channel Switching Routines */
867 /****************************************/
869 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
871 struct ath_common *common = ath9k_hw_common(ah);
874 ENABLE_REGWRITE_BUFFER(ah);
877 * set AHB_MODE not to do cacheline prefetches
879 if (!AR_SREV_9300_20_OR_LATER(ah)) {
880 regval = REG_READ(ah, AR_AHB_MODE);
881 REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
885 * let mac dma reads be in 128 byte chunks
887 regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
888 REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
890 REGWRITE_BUFFER_FLUSH(ah);
891 DISABLE_REGWRITE_BUFFER(ah);
894 * Restore TX Trigger Level to its pre-reset value.
895 * The initial value depends on whether aggregation is enabled, and is
896 * adjusted whenever underruns are detected.
898 if (!AR_SREV_9300_20_OR_LATER(ah))
899 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
901 ENABLE_REGWRITE_BUFFER(ah);
904 * let mac dma writes be in 128 byte chunks
906 regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
907 REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
910 * Setup receive FIFO threshold to hold off TX activities
912 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
914 if (AR_SREV_9300_20_OR_LATER(ah)) {
915 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
916 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
918 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
919 ah->caps.rx_status_len);
923 * reduce the number of usable entries in PCU TXBUF to avoid
924 * wrap around issues.
926 if (AR_SREV_9285(ah)) {
927 /* For AR9285 the number of Fifos are reduced to half.
928 * So set the usable tx buf size also to half to
929 * avoid data/delimiter underruns
931 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
932 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
933 } else if (!AR_SREV_9271(ah)) {
934 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
935 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
938 REGWRITE_BUFFER_FLUSH(ah);
939 DISABLE_REGWRITE_BUFFER(ah);
941 if (AR_SREV_9300_20_OR_LATER(ah))
942 ath9k_hw_reset_txstatus_ring(ah);
945 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
949 val = REG_READ(ah, AR_STA_ID1);
950 val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
952 case NL80211_IFTYPE_AP:
953 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
954 | AR_STA_ID1_KSRCH_MODE);
955 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
957 case NL80211_IFTYPE_ADHOC:
958 case NL80211_IFTYPE_MESH_POINT:
959 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
960 | AR_STA_ID1_KSRCH_MODE);
961 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
963 case NL80211_IFTYPE_STATION:
964 case NL80211_IFTYPE_MONITOR:
965 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
970 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
971 u32 *coef_mantissa, u32 *coef_exponent)
973 u32 coef_exp, coef_man;
975 for (coef_exp = 31; coef_exp > 0; coef_exp--)
976 if ((coef_scaled >> coef_exp) & 0x1)
979 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
981 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
983 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
984 *coef_exponent = coef_exp - 16;
987 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
992 if (AR_SREV_9100(ah)) {
993 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
994 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
995 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
996 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
997 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1000 ENABLE_REGWRITE_BUFFER(ah);
1002 if (AR_SREV_9300_20_OR_LATER(ah)) {
1003 REG_WRITE(ah, AR_WA, ah->WARegVal);
1007 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1008 AR_RTC_FORCE_WAKE_ON_INT);
1010 if (AR_SREV_9100(ah)) {
1011 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1012 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1014 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1016 (AR_INTR_SYNC_LOCAL_TIMEOUT |
1017 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1019 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1022 if (!AR_SREV_9300_20_OR_LATER(ah))
1024 REG_WRITE(ah, AR_RC, val);
1026 } else if (!AR_SREV_9300_20_OR_LATER(ah))
1027 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1029 rst_flags = AR_RTC_RC_MAC_WARM;
1030 if (type == ATH9K_RESET_COLD)
1031 rst_flags |= AR_RTC_RC_MAC_COLD;
1034 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1036 REGWRITE_BUFFER_FLUSH(ah);
1037 DISABLE_REGWRITE_BUFFER(ah);
1041 REG_WRITE(ah, AR_RTC_RC, 0);
1042 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1043 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1044 "RTC stuck in MAC reset\n");
1048 if (!AR_SREV_9100(ah))
1049 REG_WRITE(ah, AR_RC, 0);
1051 if (AR_SREV_9100(ah))
1057 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1059 ENABLE_REGWRITE_BUFFER(ah);
1061 if (AR_SREV_9300_20_OR_LATER(ah)) {
1062 REG_WRITE(ah, AR_WA, ah->WARegVal);
1066 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1067 AR_RTC_FORCE_WAKE_ON_INT);
1069 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1070 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1072 REG_WRITE(ah, AR_RTC_RESET, 0);
1075 REGWRITE_BUFFER_FLUSH(ah);
1076 DISABLE_REGWRITE_BUFFER(ah);
1078 if (!AR_SREV_9300_20_OR_LATER(ah))
1081 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1082 REG_WRITE(ah, AR_RC, 0);
1084 REG_WRITE(ah, AR_RTC_RESET, 1);
1086 if (!ath9k_hw_wait(ah,
1091 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1092 "RTC not waking up\n");
1096 ath9k_hw_read_revisions(ah);
1098 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1101 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1103 if (AR_SREV_9300_20_OR_LATER(ah)) {
1104 REG_WRITE(ah, AR_WA, ah->WARegVal);
1108 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1109 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1112 case ATH9K_RESET_POWER_ON:
1113 return ath9k_hw_set_reset_power_on(ah);
1114 case ATH9K_RESET_WARM:
1115 case ATH9K_RESET_COLD:
1116 return ath9k_hw_set_reset(ah, type);
1122 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1123 struct ath9k_channel *chan)
1125 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1126 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1128 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1131 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1134 ah->chip_fullsleep = false;
1135 ath9k_hw_init_pll(ah, chan);
1136 ath9k_hw_set_rfmode(ah, chan);
1141 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1142 struct ath9k_channel *chan)
1144 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1145 struct ath_common *common = ath9k_hw_common(ah);
1146 struct ieee80211_channel *channel = chan->chan;
1150 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1151 if (ath9k_hw_numtxpending(ah, qnum)) {
1152 ath_print(common, ATH_DBG_QUEUE,
1153 "Transmit frames pending on "
1154 "queue %d\n", qnum);
1159 if (!ath9k_hw_rfbus_req(ah)) {
1160 ath_print(common, ATH_DBG_FATAL,
1161 "Could not kill baseband RX\n");
1165 ath9k_hw_set_channel_regs(ah, chan);
1167 r = ath9k_hw_rf_set_freq(ah, chan);
1169 ath_print(common, ATH_DBG_FATAL,
1170 "Failed to set channel\n");
1174 ah->eep_ops->set_txpower(ah, chan,
1175 ath9k_regd_get_ctl(regulatory, chan),
1176 channel->max_antenna_gain * 2,
1177 channel->max_power * 2,
1178 min((u32) MAX_RATE_POWER,
1179 (u32) regulatory->power_limit));
1181 ath9k_hw_rfbus_done(ah);
1183 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1184 ath9k_hw_set_delta_slope(ah, chan);
1186 ath9k_hw_spur_mitigate_freq(ah, chan);
1188 if (!chan->oneTimeCalsDone)
1189 chan->oneTimeCalsDone = true;
1194 bool ath9k_hw_check_alive(struct ath_hw *ah)
1199 if (AR_SREV_9285_10_OR_LATER(ah))
1203 reg = REG_READ(ah, AR_OBS_BUS_1);
1205 if ((reg & 0x7E7FFFEF) == 0x00702400)
1208 switch (reg & 0x7E000B00) {
1216 } while (count-- > 0);
1220 EXPORT_SYMBOL(ath9k_hw_check_alive);
1222 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1223 bool bChannelChange)
1225 struct ath_common *common = ath9k_hw_common(ah);
1227 struct ath9k_channel *curchan = ah->curchan;
1233 ah->txchainmask = common->tx_chainmask;
1234 ah->rxchainmask = common->rx_chainmask;
1236 if (!ah->chip_fullsleep) {
1237 ath9k_hw_abortpcurecv(ah);
1238 if (!ath9k_hw_stopdmarecv(ah))
1239 ath_print(common, ATH_DBG_XMIT,
1240 "Failed to stop receive dma\n");
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);
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_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1272 tsf = ath9k_hw_gettsf64(ah);
1274 saveLedState = REG_READ(ah, AR_CFG_LED) &
1275 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1276 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1278 ath9k_hw_mark_phy_inactive(ah);
1280 /* Only required on the first reset */
1281 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1283 AR9271_RESET_POWER_DOWN_CONTROL,
1284 AR9271_RADIO_RF_RST);
1288 if (!ath9k_hw_chip_reset(ah, chan)) {
1289 ath_print(common, ATH_DBG_FATAL, "Chip reset failed\n");
1293 /* Only required on the first reset */
1294 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1295 ah->htc_reset_init = false;
1297 AR9271_RESET_POWER_DOWN_CONTROL,
1298 AR9271_GATE_MAC_CTL);
1303 if (tsf && AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1304 ath9k_hw_settsf64(ah, tsf);
1306 if (AR_SREV_9280_10_OR_LATER(ah))
1307 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1309 if (!AR_SREV_9300_20_OR_LATER(ah))
1310 ar9002_hw_enable_async_fifo(ah);
1312 r = ath9k_hw_process_ini(ah, chan);
1316 /* Setup MFP options for CCMP */
1317 if (AR_SREV_9280_20_OR_LATER(ah)) {
1318 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1319 * frames when constructing CCMP AAD. */
1320 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1322 ah->sw_mgmt_crypto = false;
1323 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1324 /* Disable hardware crypto for management frames */
1325 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1326 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1327 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1328 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1329 ah->sw_mgmt_crypto = true;
1331 ah->sw_mgmt_crypto = true;
1333 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1334 ath9k_hw_set_delta_slope(ah, chan);
1336 ath9k_hw_spur_mitigate_freq(ah, chan);
1337 ah->eep_ops->set_board_values(ah, chan);
1339 ath9k_hw_set_operating_mode(ah, ah->opmode);
1341 ENABLE_REGWRITE_BUFFER(ah);
1343 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1344 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
1346 | AR_STA_ID1_RTS_USE_DEF
1348 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1349 | ah->sta_id1_defaults);
1350 ath_hw_setbssidmask(common);
1351 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1352 ath9k_hw_write_associd(ah);
1353 REG_WRITE(ah, AR_ISR, ~0);
1354 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1356 REGWRITE_BUFFER_FLUSH(ah);
1357 DISABLE_REGWRITE_BUFFER(ah);
1359 r = ath9k_hw_rf_set_freq(ah, chan);
1363 ENABLE_REGWRITE_BUFFER(ah);
1365 for (i = 0; i < AR_NUM_DCU; i++)
1366 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1368 REGWRITE_BUFFER_FLUSH(ah);
1369 DISABLE_REGWRITE_BUFFER(ah);
1372 for (i = 0; i < ah->caps.total_queues; i++)
1373 ath9k_hw_resettxqueue(ah, i);
1375 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1376 ath9k_hw_ani_cache_ini_regs(ah);
1377 ath9k_hw_init_qos(ah);
1379 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1380 ath9k_enable_rfkill(ah);
1382 ath9k_hw_init_global_settings(ah);
1384 if (!AR_SREV_9300_20_OR_LATER(ah)) {
1385 ar9002_hw_update_async_fifo(ah);
1386 ar9002_hw_enable_wep_aggregation(ah);
1389 REG_WRITE(ah, AR_STA_ID1,
1390 REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
1392 ath9k_hw_set_dma(ah);
1394 REG_WRITE(ah, AR_OBS, 8);
1396 if (ah->config.rx_intr_mitigation) {
1397 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
1398 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
1401 if (ah->config.tx_intr_mitigation) {
1402 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1403 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1406 ath9k_hw_init_bb(ah, chan);
1408 if (!ath9k_hw_init_cal(ah, chan))
1411 ENABLE_REGWRITE_BUFFER(ah);
1413 ath9k_hw_restore_chainmask(ah);
1414 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1416 REGWRITE_BUFFER_FLUSH(ah);
1417 DISABLE_REGWRITE_BUFFER(ah);
1420 * For big endian systems turn on swapping for descriptors
1422 if (AR_SREV_9100(ah)) {
1424 mask = REG_READ(ah, AR_CFG);
1425 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1426 ath_print(common, ATH_DBG_RESET,
1427 "CFG Byte Swap Set 0x%x\n", mask);
1430 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1431 REG_WRITE(ah, AR_CFG, mask);
1432 ath_print(common, ATH_DBG_RESET,
1433 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
1436 if (common->bus_ops->ath_bus_type == ATH_USB) {
1437 /* Configure AR9271 target WLAN */
1438 if (AR_SREV_9271(ah))
1439 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1441 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1445 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1449 if (ah->btcoex_hw.enabled)
1450 ath9k_hw_btcoex_enable(ah);
1452 if (AR_SREV_9300_20_OR_LATER(ah)) {
1453 ath9k_hw_loadnf(ah, curchan);
1454 ath9k_hw_start_nfcal(ah);
1455 ar9003_hw_bb_watchdog_config(ah);
1460 EXPORT_SYMBOL(ath9k_hw_reset);
1462 /************************/
1463 /* Key Cache Management */
1464 /************************/
1466 bool ath9k_hw_keyreset(struct ath_hw *ah, u16 entry)
1470 if (entry >= ah->caps.keycache_size) {
1471 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1472 "keychache entry %u out of range\n", entry);
1476 keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
1478 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
1479 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
1480 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
1481 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
1482 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
1483 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
1484 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
1485 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
1487 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1488 u16 micentry = entry + 64;
1490 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
1491 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1492 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
1493 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1499 EXPORT_SYMBOL(ath9k_hw_keyreset);
1501 bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
1504 u32 unicast_flag = AR_KEYTABLE_VALID;
1506 if (entry >= ah->caps.keycache_size) {
1507 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1508 "keychache entry %u out of range\n", entry);
1514 * AR_KEYTABLE_VALID indicates that the address is a unicast
1515 * address, which must match the transmitter address for
1516 * decrypting frames.
1517 * Not setting this bit allows the hardware to use the key
1518 * for multicast frame decryption.
1523 macHi = (mac[5] << 8) | mac[4];
1524 macLo = (mac[3] << 24) |
1529 macLo |= (macHi & 1) << 31;
1534 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
1535 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | unicast_flag);
1539 EXPORT_SYMBOL(ath9k_hw_keysetmac);
1541 bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
1542 const struct ath9k_keyval *k,
1545 const struct ath9k_hw_capabilities *pCap = &ah->caps;
1546 struct ath_common *common = ath9k_hw_common(ah);
1547 u32 key0, key1, key2, key3, key4;
1550 if (entry >= pCap->keycache_size) {
1551 ath_print(common, ATH_DBG_FATAL,
1552 "keycache entry %u out of range\n", entry);
1556 switch (k->kv_type) {
1557 case ATH9K_CIPHER_AES_OCB:
1558 keyType = AR_KEYTABLE_TYPE_AES;
1560 case ATH9K_CIPHER_AES_CCM:
1561 if (!(pCap->hw_caps & ATH9K_HW_CAP_CIPHER_AESCCM)) {
1562 ath_print(common, ATH_DBG_ANY,
1563 "AES-CCM not supported by mac rev 0x%x\n",
1564 ah->hw_version.macRev);
1567 keyType = AR_KEYTABLE_TYPE_CCM;
1569 case ATH9K_CIPHER_TKIP:
1570 keyType = AR_KEYTABLE_TYPE_TKIP;
1571 if (ATH9K_IS_MIC_ENABLED(ah)
1572 && entry + 64 >= pCap->keycache_size) {
1573 ath_print(common, ATH_DBG_ANY,
1574 "entry %u inappropriate for TKIP\n", entry);
1578 case ATH9K_CIPHER_WEP:
1579 if (k->kv_len < WLAN_KEY_LEN_WEP40) {
1580 ath_print(common, ATH_DBG_ANY,
1581 "WEP key length %u too small\n", k->kv_len);
1584 if (k->kv_len <= WLAN_KEY_LEN_WEP40)
1585 keyType = AR_KEYTABLE_TYPE_40;
1586 else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1587 keyType = AR_KEYTABLE_TYPE_104;
1589 keyType = AR_KEYTABLE_TYPE_128;
1591 case ATH9K_CIPHER_CLR:
1592 keyType = AR_KEYTABLE_TYPE_CLR;
1595 ath_print(common, ATH_DBG_FATAL,
1596 "cipher %u not supported\n", k->kv_type);
1600 key0 = get_unaligned_le32(k->kv_val + 0);
1601 key1 = get_unaligned_le16(k->kv_val + 4);
1602 key2 = get_unaligned_le32(k->kv_val + 6);
1603 key3 = get_unaligned_le16(k->kv_val + 10);
1604 key4 = get_unaligned_le32(k->kv_val + 12);
1605 if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1609 * Note: Key cache registers access special memory area that requires
1610 * two 32-bit writes to actually update the values in the internal
1611 * memory. Consequently, the exact order and pairs used here must be
1615 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1616 u16 micentry = entry + 64;
1619 * Write inverted key[47:0] first to avoid Michael MIC errors
1620 * on frames that could be sent or received at the same time.
1621 * The correct key will be written in the end once everything
1624 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), ~key0);
1625 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), ~key1);
1627 /* Write key[95:48] */
1628 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1629 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1631 /* Write key[127:96] and key type */
1632 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1633 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1635 /* Write MAC address for the entry */
1636 (void) ath9k_hw_keysetmac(ah, entry, mac);
1638 if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) {
1640 * TKIP uses two key cache entries:
1641 * Michael MIC TX/RX keys in the same key cache entry
1642 * (idx = main index + 64):
1643 * key0 [31:0] = RX key [31:0]
1644 * key1 [15:0] = TX key [31:16]
1645 * key1 [31:16] = reserved
1646 * key2 [31:0] = RX key [63:32]
1647 * key3 [15:0] = TX key [15:0]
1648 * key3 [31:16] = reserved
1649 * key4 [31:0] = TX key [63:32]
1651 u32 mic0, mic1, mic2, mic3, mic4;
1653 mic0 = get_unaligned_le32(k->kv_mic + 0);
1654 mic2 = get_unaligned_le32(k->kv_mic + 4);
1655 mic1 = get_unaligned_le16(k->kv_txmic + 2) & 0xffff;
1656 mic3 = get_unaligned_le16(k->kv_txmic + 0) & 0xffff;
1657 mic4 = get_unaligned_le32(k->kv_txmic + 4);
1659 /* Write RX[31:0] and TX[31:16] */
1660 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1661 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), mic1);
1663 /* Write RX[63:32] and TX[15:0] */
1664 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1665 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), mic3);
1667 /* Write TX[63:32] and keyType(reserved) */
1668 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), mic4);
1669 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1670 AR_KEYTABLE_TYPE_CLR);
1674 * TKIP uses four key cache entries (two for group
1676 * Michael MIC TX/RX keys are in different key cache
1677 * entries (idx = main index + 64 for TX and
1678 * main index + 32 + 96 for RX):
1679 * key0 [31:0] = TX/RX MIC key [31:0]
1680 * key1 [31:0] = reserved
1681 * key2 [31:0] = TX/RX MIC key [63:32]
1682 * key3 [31:0] = reserved
1683 * key4 [31:0] = reserved
1685 * Upper layer code will call this function separately
1686 * for TX and RX keys when these registers offsets are
1691 mic0 = get_unaligned_le32(k->kv_mic + 0);
1692 mic2 = get_unaligned_le32(k->kv_mic + 4);
1694 /* Write MIC key[31:0] */
1695 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1696 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1698 /* Write MIC key[63:32] */
1699 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1700 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1702 /* Write TX[63:32] and keyType(reserved) */
1703 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
1704 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1705 AR_KEYTABLE_TYPE_CLR);
1708 /* MAC address registers are reserved for the MIC entry */
1709 REG_WRITE(ah, AR_KEYTABLE_MAC0(micentry), 0);
1710 REG_WRITE(ah, AR_KEYTABLE_MAC1(micentry), 0);
1713 * Write the correct (un-inverted) key[47:0] last to enable
1714 * TKIP now that all other registers are set with correct
1717 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1718 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1720 /* Write key[47:0] */
1721 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1722 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1724 /* Write key[95:48] */
1725 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1726 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1728 /* Write key[127:96] and key type */
1729 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1730 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1732 /* Write MAC address for the entry */
1733 (void) ath9k_hw_keysetmac(ah, entry, mac);
1738 EXPORT_SYMBOL(ath9k_hw_set_keycache_entry);
1740 /******************************/
1741 /* Power Management (Chipset) */
1742 /******************************/
1745 * Notify Power Mgt is disabled in self-generated frames.
1746 * If requested, force chip to sleep.
1748 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
1750 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1753 * Clear the RTC force wake bit to allow the
1754 * mac to go to sleep.
1756 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1757 AR_RTC_FORCE_WAKE_EN);
1758 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1759 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1761 /* Shutdown chip. Active low */
1762 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah))
1763 REG_CLR_BIT(ah, (AR_RTC_RESET),
1767 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
1768 if (AR_SREV_9300_20_OR_LATER(ah))
1769 REG_WRITE(ah, AR_WA,
1770 ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1774 * Notify Power Management is enabled in self-generating
1775 * frames. If request, set power mode of chip to
1776 * auto/normal. Duration in units of 128us (1/8 TU).
1778 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
1780 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1782 struct ath9k_hw_capabilities *pCap = &ah->caps;
1784 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1785 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1786 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1787 AR_RTC_FORCE_WAKE_ON_INT);
1790 * Clear the RTC force wake bit to allow the
1791 * mac to go to sleep.
1793 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1794 AR_RTC_FORCE_WAKE_EN);
1798 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
1799 if (AR_SREV_9300_20_OR_LATER(ah))
1800 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
1803 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
1808 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
1809 if (AR_SREV_9300_20_OR_LATER(ah)) {
1810 REG_WRITE(ah, AR_WA, ah->WARegVal);
1815 if ((REG_READ(ah, AR_RTC_STATUS) &
1816 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1817 if (ath9k_hw_set_reset_reg(ah,
1818 ATH9K_RESET_POWER_ON) != true) {
1821 if (!AR_SREV_9300_20_OR_LATER(ah))
1822 ath9k_hw_init_pll(ah, NULL);
1824 if (AR_SREV_9100(ah))
1825 REG_SET_BIT(ah, AR_RTC_RESET,
1828 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1829 AR_RTC_FORCE_WAKE_EN);
1832 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1833 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1834 if (val == AR_RTC_STATUS_ON)
1837 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1838 AR_RTC_FORCE_WAKE_EN);
1841 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1842 "Failed to wakeup in %uus\n",
1843 POWER_UP_TIME / 20);
1848 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1853 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
1855 struct ath_common *common = ath9k_hw_common(ah);
1856 int status = true, setChip = true;
1857 static const char *modes[] = {
1864 if (ah->power_mode == mode)
1867 ath_print(common, ATH_DBG_RESET, "%s -> %s\n",
1868 modes[ah->power_mode], modes[mode]);
1871 case ATH9K_PM_AWAKE:
1872 status = ath9k_hw_set_power_awake(ah, setChip);
1874 case ATH9K_PM_FULL_SLEEP:
1875 ath9k_set_power_sleep(ah, setChip);
1876 ah->chip_fullsleep = true;
1878 case ATH9K_PM_NETWORK_SLEEP:
1879 ath9k_set_power_network_sleep(ah, setChip);
1882 ath_print(common, ATH_DBG_FATAL,
1883 "Unknown power mode %u\n", mode);
1886 ah->power_mode = mode;
1890 EXPORT_SYMBOL(ath9k_hw_setpower);
1892 /*******************/
1893 /* Beacon Handling */
1894 /*******************/
1896 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
1900 ah->beacon_interval = beacon_period;
1902 ENABLE_REGWRITE_BUFFER(ah);
1904 switch (ah->opmode) {
1905 case NL80211_IFTYPE_STATION:
1906 case NL80211_IFTYPE_MONITOR:
1907 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1908 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, 0xffff);
1909 REG_WRITE(ah, AR_NEXT_SWBA, 0x7ffff);
1910 flags |= AR_TBTT_TIMER_EN;
1912 case NL80211_IFTYPE_ADHOC:
1913 case NL80211_IFTYPE_MESH_POINT:
1914 REG_SET_BIT(ah, AR_TXCFG,
1915 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
1916 REG_WRITE(ah, AR_NEXT_NDP_TIMER,
1917 TU_TO_USEC(next_beacon +
1918 (ah->atim_window ? ah->
1920 flags |= AR_NDP_TIMER_EN;
1921 case NL80211_IFTYPE_AP:
1922 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1923 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT,
1924 TU_TO_USEC(next_beacon -
1926 dma_beacon_response_time));
1927 REG_WRITE(ah, AR_NEXT_SWBA,
1928 TU_TO_USEC(next_beacon -
1930 sw_beacon_response_time));
1932 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
1935 ath_print(ath9k_hw_common(ah), ATH_DBG_BEACON,
1936 "%s: unsupported opmode: %d\n",
1937 __func__, ah->opmode);
1942 REG_WRITE(ah, AR_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1943 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1944 REG_WRITE(ah, AR_SWBA_PERIOD, TU_TO_USEC(beacon_period));
1945 REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
1947 REGWRITE_BUFFER_FLUSH(ah);
1948 DISABLE_REGWRITE_BUFFER(ah);
1950 beacon_period &= ~ATH9K_BEACON_ENA;
1951 if (beacon_period & ATH9K_BEACON_RESET_TSF) {
1952 ath9k_hw_reset_tsf(ah);
1955 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
1957 EXPORT_SYMBOL(ath9k_hw_beaconinit);
1959 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
1960 const struct ath9k_beacon_state *bs)
1962 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
1963 struct ath9k_hw_capabilities *pCap = &ah->caps;
1964 struct ath_common *common = ath9k_hw_common(ah);
1966 ENABLE_REGWRITE_BUFFER(ah);
1968 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
1970 REG_WRITE(ah, AR_BEACON_PERIOD,
1971 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1972 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
1973 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1975 REGWRITE_BUFFER_FLUSH(ah);
1976 DISABLE_REGWRITE_BUFFER(ah);
1978 REG_RMW_FIELD(ah, AR_RSSI_THR,
1979 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
1981 beaconintval = bs->bs_intval & ATH9K_BEACON_PERIOD;
1983 if (bs->bs_sleepduration > beaconintval)
1984 beaconintval = bs->bs_sleepduration;
1986 dtimperiod = bs->bs_dtimperiod;
1987 if (bs->bs_sleepduration > dtimperiod)
1988 dtimperiod = bs->bs_sleepduration;
1990 if (beaconintval == dtimperiod)
1991 nextTbtt = bs->bs_nextdtim;
1993 nextTbtt = bs->bs_nexttbtt;
1995 ath_print(common, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
1996 ath_print(common, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
1997 ath_print(common, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
1998 ath_print(common, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
2000 ENABLE_REGWRITE_BUFFER(ah);
2002 REG_WRITE(ah, AR_NEXT_DTIM,
2003 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
2004 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
2006 REG_WRITE(ah, AR_SLEEP1,
2007 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
2008 | AR_SLEEP1_ASSUME_DTIM);
2010 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
2011 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
2013 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
2015 REG_WRITE(ah, AR_SLEEP2,
2016 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
2018 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
2019 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
2021 REGWRITE_BUFFER_FLUSH(ah);
2022 DISABLE_REGWRITE_BUFFER(ah);
2024 REG_SET_BIT(ah, AR_TIMER_MODE,
2025 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
2028 /* TSF Out of Range Threshold */
2029 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
2031 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
2033 /*******************/
2034 /* HW Capabilities */
2035 /*******************/
2037 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
2039 struct ath9k_hw_capabilities *pCap = &ah->caps;
2040 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2041 struct ath_common *common = ath9k_hw_common(ah);
2042 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
2044 u16 capField = 0, eeval;
2046 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
2047 regulatory->current_rd = eeval;
2049 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_1);
2050 if (AR_SREV_9285_10_OR_LATER(ah))
2051 eeval |= AR9285_RDEXT_DEFAULT;
2052 regulatory->current_rd_ext = eeval;
2054 capField = ah->eep_ops->get_eeprom(ah, EEP_OP_CAP);
2056 if (ah->opmode != NL80211_IFTYPE_AP &&
2057 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
2058 if (regulatory->current_rd == 0x64 ||
2059 regulatory->current_rd == 0x65)
2060 regulatory->current_rd += 5;
2061 else if (regulatory->current_rd == 0x41)
2062 regulatory->current_rd = 0x43;
2063 ath_print(common, ATH_DBG_REGULATORY,
2064 "regdomain mapped to 0x%x\n", regulatory->current_rd);
2067 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
2068 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
2069 ath_print(common, ATH_DBG_FATAL,
2070 "no band has been marked as supported in EEPROM.\n");
2074 bitmap_zero(pCap->wireless_modes, ATH9K_MODE_MAX);
2076 if (eeval & AR5416_OPFLAGS_11A) {
2077 set_bit(ATH9K_MODE_11A, pCap->wireless_modes);
2078 if (ah->config.ht_enable) {
2079 if (!(eeval & AR5416_OPFLAGS_N_5G_HT20))
2080 set_bit(ATH9K_MODE_11NA_HT20,
2081 pCap->wireless_modes);
2082 if (!(eeval & AR5416_OPFLAGS_N_5G_HT40)) {
2083 set_bit(ATH9K_MODE_11NA_HT40PLUS,
2084 pCap->wireless_modes);
2085 set_bit(ATH9K_MODE_11NA_HT40MINUS,
2086 pCap->wireless_modes);
2091 if (eeval & AR5416_OPFLAGS_11G) {
2092 set_bit(ATH9K_MODE_11G, pCap->wireless_modes);
2093 if (ah->config.ht_enable) {
2094 if (!(eeval & AR5416_OPFLAGS_N_2G_HT20))
2095 set_bit(ATH9K_MODE_11NG_HT20,
2096 pCap->wireless_modes);
2097 if (!(eeval & AR5416_OPFLAGS_N_2G_HT40)) {
2098 set_bit(ATH9K_MODE_11NG_HT40PLUS,
2099 pCap->wireless_modes);
2100 set_bit(ATH9K_MODE_11NG_HT40MINUS,
2101 pCap->wireless_modes);
2106 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
2108 * For AR9271 we will temporarilly uses the rx chainmax as read from
2111 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
2112 !(eeval & AR5416_OPFLAGS_11A) &&
2113 !(AR_SREV_9271(ah)))
2114 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
2115 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
2117 /* Use rx_chainmask from EEPROM. */
2118 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
2120 if (!(AR_SREV_9280(ah) && (ah->hw_version.macRev == 0)))
2121 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
2123 pCap->low_2ghz_chan = 2312;
2124 pCap->high_2ghz_chan = 2732;
2126 pCap->low_5ghz_chan = 4920;
2127 pCap->high_5ghz_chan = 6100;
2129 pCap->hw_caps &= ~ATH9K_HW_CAP_CIPHER_CKIP;
2130 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_TKIP;
2131 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_AESCCM;
2133 pCap->hw_caps &= ~ATH9K_HW_CAP_MIC_CKIP;
2134 pCap->hw_caps |= ATH9K_HW_CAP_MIC_TKIP;
2135 pCap->hw_caps |= ATH9K_HW_CAP_MIC_AESCCM;
2137 if (ah->config.ht_enable)
2138 pCap->hw_caps |= ATH9K_HW_CAP_HT;
2140 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
2142 pCap->hw_caps |= ATH9K_HW_CAP_GTT;
2143 pCap->hw_caps |= ATH9K_HW_CAP_VEOL;
2144 pCap->hw_caps |= ATH9K_HW_CAP_BSSIDMASK;
2145 pCap->hw_caps &= ~ATH9K_HW_CAP_MCAST_KEYSEARCH;
2147 if (capField & AR_EEPROM_EEPCAP_MAXQCU)
2148 pCap->total_queues =
2149 MS(capField, AR_EEPROM_EEPCAP_MAXQCU);
2151 pCap->total_queues = ATH9K_NUM_TX_QUEUES;
2153 if (capField & AR_EEPROM_EEPCAP_KC_ENTRIES)
2154 pCap->keycache_size =
2155 1 << MS(capField, AR_EEPROM_EEPCAP_KC_ENTRIES);
2157 pCap->keycache_size = AR_KEYTABLE_SIZE;
2159 pCap->hw_caps |= ATH9K_HW_CAP_FASTCC;
2161 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
2162 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD >> 1;
2164 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD;
2166 if (AR_SREV_9271(ah))
2167 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2168 else if (AR_SREV_9285_10_OR_LATER(ah))
2169 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2170 else if (AR_SREV_9280_10_OR_LATER(ah))
2171 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2173 pCap->num_gpio_pins = AR_NUM_GPIO;
2175 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
2176 pCap->hw_caps |= ATH9K_HW_CAP_CST;
2177 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2179 pCap->rts_aggr_limit = (8 * 1024);
2182 pCap->hw_caps |= ATH9K_HW_CAP_ENHANCEDPM;
2184 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
2185 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2186 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2188 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2189 ah->rfkill_polarity =
2190 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2192 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2195 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
2196 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2198 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2200 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2201 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2203 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2205 if (regulatory->current_rd_ext & (1 << REG_EXT_JAPAN_MIDBAND)) {
2207 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2208 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN |
2209 AR_EEPROM_EEREGCAP_EN_KK_U2 |
2210 AR_EEPROM_EEREGCAP_EN_KK_MIDBAND;
2213 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2214 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN;
2217 /* Advertise midband for AR5416 with FCC midband set in eeprom */
2218 if (regulatory->current_rd_ext & (1 << REG_EXT_FCC_MIDBAND) &&
2220 pCap->reg_cap |= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND;
2222 pCap->num_antcfg_5ghz =
2223 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_5GHZ);
2224 pCap->num_antcfg_2ghz =
2225 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
2227 if (AR_SREV_9280_10_OR_LATER(ah) &&
2228 ath9k_hw_btcoex_supported(ah)) {
2229 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
2230 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
2232 if (AR_SREV_9285(ah)) {
2233 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
2234 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
2236 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
2239 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
2242 if (AR_SREV_9300_20_OR_LATER(ah)) {
2243 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_LDPC |
2244 ATH9K_HW_CAP_FASTCLOCK;
2245 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2246 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2247 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2248 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2249 pCap->txs_len = sizeof(struct ar9003_txs);
2250 if (ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
2251 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
2253 pCap->tx_desc_len = sizeof(struct ath_desc);
2254 if (AR_SREV_9280_20(ah) &&
2255 ((ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) <=
2256 AR5416_EEP_MINOR_VER_16) ||
2257 ah->eep_ops->get_eeprom(ah, EEP_FSTCLK_5G)))
2258 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
2261 if (AR_SREV_9300_20_OR_LATER(ah))
2262 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2264 if (AR_SREV_9287_10_OR_LATER(ah) || AR_SREV_9271(ah))
2265 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
2270 /****************************/
2271 /* GPIO / RFKILL / Antennae */
2272 /****************************/
2274 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2278 u32 gpio_shift, tmp;
2281 addr = AR_GPIO_OUTPUT_MUX3;
2283 addr = AR_GPIO_OUTPUT_MUX2;
2285 addr = AR_GPIO_OUTPUT_MUX1;
2287 gpio_shift = (gpio % 6) * 5;
2289 if (AR_SREV_9280_20_OR_LATER(ah)
2290 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2291 REG_RMW(ah, addr, (type << gpio_shift),
2292 (0x1f << gpio_shift));
2294 tmp = REG_READ(ah, addr);
2295 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2296 tmp &= ~(0x1f << gpio_shift);
2297 tmp |= (type << gpio_shift);
2298 REG_WRITE(ah, addr, tmp);
2302 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2306 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2308 gpio_shift = gpio << 1;
2312 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2313 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2315 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2317 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2319 #define MS_REG_READ(x, y) \
2320 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2322 if (gpio >= ah->caps.num_gpio_pins)
2325 if (AR_SREV_9300_20_OR_LATER(ah))
2326 return MS_REG_READ(AR9300, gpio) != 0;
2327 else if (AR_SREV_9271(ah))
2328 return MS_REG_READ(AR9271, gpio) != 0;
2329 else if (AR_SREV_9287_10_OR_LATER(ah))
2330 return MS_REG_READ(AR9287, gpio) != 0;
2331 else if (AR_SREV_9285_10_OR_LATER(ah))
2332 return MS_REG_READ(AR9285, gpio) != 0;
2333 else if (AR_SREV_9280_10_OR_LATER(ah))
2334 return MS_REG_READ(AR928X, gpio) != 0;
2336 return MS_REG_READ(AR, gpio) != 0;
2338 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2340 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2345 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2347 gpio_shift = 2 * gpio;
2351 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2352 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2354 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2356 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2358 if (AR_SREV_9271(ah))
2361 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2364 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2366 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
2368 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
2370 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
2372 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2374 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2376 EXPORT_SYMBOL(ath9k_hw_setantenna);
2378 /*********************/
2379 /* General Operation */
2380 /*********************/
2382 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2384 u32 bits = REG_READ(ah, AR_RX_FILTER);
2385 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2387 if (phybits & AR_PHY_ERR_RADAR)
2388 bits |= ATH9K_RX_FILTER_PHYRADAR;
2389 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2390 bits |= ATH9K_RX_FILTER_PHYERR;
2394 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2396 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2400 ENABLE_REGWRITE_BUFFER(ah);
2402 REG_WRITE(ah, AR_RX_FILTER, bits);
2405 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2406 phybits |= AR_PHY_ERR_RADAR;
2407 if (bits & ATH9K_RX_FILTER_PHYERR)
2408 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2409 REG_WRITE(ah, AR_PHY_ERR, phybits);
2412 REG_WRITE(ah, AR_RXCFG,
2413 REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
2415 REG_WRITE(ah, AR_RXCFG,
2416 REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
2418 REGWRITE_BUFFER_FLUSH(ah);
2419 DISABLE_REGWRITE_BUFFER(ah);
2421 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2423 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2425 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2428 ath9k_hw_init_pll(ah, NULL);
2431 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2433 bool ath9k_hw_disable(struct ath_hw *ah)
2435 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2438 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2441 ath9k_hw_init_pll(ah, NULL);
2444 EXPORT_SYMBOL(ath9k_hw_disable);
2446 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
2448 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2449 struct ath9k_channel *chan = ah->curchan;
2450 struct ieee80211_channel *channel = chan->chan;
2452 regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
2454 ah->eep_ops->set_txpower(ah, chan,
2455 ath9k_regd_get_ctl(regulatory, chan),
2456 channel->max_antenna_gain * 2,
2457 channel->max_power * 2,
2458 min((u32) MAX_RATE_POWER,
2459 (u32) regulatory->power_limit));
2461 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2463 void ath9k_hw_setopmode(struct ath_hw *ah)
2465 ath9k_hw_set_operating_mode(ah, ah->opmode);
2467 EXPORT_SYMBOL(ath9k_hw_setopmode);
2469 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2471 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2472 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2474 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2476 void ath9k_hw_write_associd(struct ath_hw *ah)
2478 struct ath_common *common = ath9k_hw_common(ah);
2480 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2481 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2482 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2484 EXPORT_SYMBOL(ath9k_hw_write_associd);
2486 #define ATH9K_MAX_TSF_READ 10
2488 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2490 u32 tsf_lower, tsf_upper1, tsf_upper2;
2493 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2494 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2495 tsf_lower = REG_READ(ah, AR_TSF_L32);
2496 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2497 if (tsf_upper2 == tsf_upper1)
2499 tsf_upper1 = tsf_upper2;
2502 WARN_ON( i == ATH9K_MAX_TSF_READ );
2504 return (((u64)tsf_upper1 << 32) | tsf_lower);
2506 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2508 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2510 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2511 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2513 EXPORT_SYMBOL(ath9k_hw_settsf64);
2515 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2517 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2518 AH_TSF_WRITE_TIMEOUT))
2519 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
2520 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2522 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2524 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2526 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
2529 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2531 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2533 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2535 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2537 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2540 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2541 macmode = AR_2040_JOINED_RX_CLEAR;
2545 REG_WRITE(ah, AR_2040_MODE, macmode);
2548 /* HW Generic timers configuration */
2550 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2552 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2553 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2554 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2555 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2556 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2557 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2558 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2559 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2560 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2561 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2562 AR_NDP2_TIMER_MODE, 0x0002},
2563 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2564 AR_NDP2_TIMER_MODE, 0x0004},
2565 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2566 AR_NDP2_TIMER_MODE, 0x0008},
2567 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2568 AR_NDP2_TIMER_MODE, 0x0010},
2569 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2570 AR_NDP2_TIMER_MODE, 0x0020},
2571 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2572 AR_NDP2_TIMER_MODE, 0x0040},
2573 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2574 AR_NDP2_TIMER_MODE, 0x0080}
2577 /* HW generic timer primitives */
2579 /* compute and clear index of rightmost 1 */
2580 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2590 return timer_table->gen_timer_index[b];
2593 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2595 return REG_READ(ah, AR_TSF_L32);
2597 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2599 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2600 void (*trigger)(void *),
2601 void (*overflow)(void *),
2605 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2606 struct ath_gen_timer *timer;
2608 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2610 if (timer == NULL) {
2611 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2612 "Failed to allocate memory"
2613 "for hw timer[%d]\n", timer_index);
2617 /* allocate a hardware generic timer slot */
2618 timer_table->timers[timer_index] = timer;
2619 timer->index = timer_index;
2620 timer->trigger = trigger;
2621 timer->overflow = overflow;
2626 EXPORT_SYMBOL(ath_gen_timer_alloc);
2628 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2629 struct ath_gen_timer *timer,
2633 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2636 BUG_ON(!timer_period);
2638 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2640 tsf = ath9k_hw_gettsf32(ah);
2642 ath_print(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
2643 "curent tsf %x period %x"
2644 "timer_next %x\n", tsf, timer_period, timer_next);
2647 * Pull timer_next forward if the current TSF already passed it
2648 * because of software latency
2650 if (timer_next < tsf)
2651 timer_next = tsf + timer_period;
2654 * Program generic timer registers
2656 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2658 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2660 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2661 gen_tmr_configuration[timer->index].mode_mask);
2663 /* Enable both trigger and thresh interrupt masks */
2664 REG_SET_BIT(ah, AR_IMR_S5,
2665 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2666 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2668 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2670 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2672 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2674 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2675 (timer->index >= ATH_MAX_GEN_TIMER)) {
2679 /* Clear generic timer enable bits. */
2680 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2681 gen_tmr_configuration[timer->index].mode_mask);
2683 /* Disable both trigger and thresh interrupt masks */
2684 REG_CLR_BIT(ah, AR_IMR_S5,
2685 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2686 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2688 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
2690 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
2692 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2694 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2696 /* free the hardware generic timer slot */
2697 timer_table->timers[timer->index] = NULL;
2700 EXPORT_SYMBOL(ath_gen_timer_free);
2703 * Generic Timer Interrupts handling
2705 void ath_gen_timer_isr(struct ath_hw *ah)
2707 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2708 struct ath_gen_timer *timer;
2709 struct ath_common *common = ath9k_hw_common(ah);
2710 u32 trigger_mask, thresh_mask, index;
2712 /* get hardware generic timer interrupt status */
2713 trigger_mask = ah->intr_gen_timer_trigger;
2714 thresh_mask = ah->intr_gen_timer_thresh;
2715 trigger_mask &= timer_table->timer_mask.val;
2716 thresh_mask &= timer_table->timer_mask.val;
2718 trigger_mask &= ~thresh_mask;
2720 while (thresh_mask) {
2721 index = rightmost_index(timer_table, &thresh_mask);
2722 timer = timer_table->timers[index];
2724 ath_print(common, ATH_DBG_HWTIMER,
2725 "TSF overflow for Gen timer %d\n", index);
2726 timer->overflow(timer->arg);
2729 while (trigger_mask) {
2730 index = rightmost_index(timer_table, &trigger_mask);
2731 timer = timer_table->timers[index];
2733 ath_print(common, ATH_DBG_HWTIMER,
2734 "Gen timer[%d] trigger\n", index);
2735 timer->trigger(timer->arg);
2738 EXPORT_SYMBOL(ath_gen_timer_isr);
2744 void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2746 ah->htc_reset_init = true;
2748 EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2753 } ath_mac_bb_names[] = {
2754 /* Devices with external radios */
2755 { AR_SREV_VERSION_5416_PCI, "5416" },
2756 { AR_SREV_VERSION_5416_PCIE, "5418" },
2757 { AR_SREV_VERSION_9100, "9100" },
2758 { AR_SREV_VERSION_9160, "9160" },
2759 /* Single-chip solutions */
2760 { AR_SREV_VERSION_9280, "9280" },
2761 { AR_SREV_VERSION_9285, "9285" },
2762 { AR_SREV_VERSION_9287, "9287" },
2763 { AR_SREV_VERSION_9271, "9271" },
2764 { AR_SREV_VERSION_9300, "9300" },
2767 /* For devices with external radios */
2771 } ath_rf_names[] = {
2773 { AR_RAD5133_SREV_MAJOR, "5133" },
2774 { AR_RAD5122_SREV_MAJOR, "5122" },
2775 { AR_RAD2133_SREV_MAJOR, "2133" },
2776 { AR_RAD2122_SREV_MAJOR, "2122" }
2780 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2782 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2786 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
2787 if (ath_mac_bb_names[i].version == mac_bb_version) {
2788 return ath_mac_bb_names[i].name;
2796 * Return the RF name. "????" is returned if the RF is unknown.
2797 * Used for devices with external radios.
2799 static const char *ath9k_hw_rf_name(u16 rf_version)
2803 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
2804 if (ath_rf_names[i].version == rf_version) {
2805 return ath_rf_names[i].name;
2812 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
2816 /* chipsets >= AR9280 are single-chip */
2817 if (AR_SREV_9280_10_OR_LATER(ah)) {
2818 used = snprintf(hw_name, len,
2819 "Atheros AR%s Rev:%x",
2820 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2821 ah->hw_version.macRev);
2824 used = snprintf(hw_name, len,
2825 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2826 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2827 ah->hw_version.macRev,
2828 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
2829 AR_RADIO_SREV_MAJOR)),
2830 ah->hw_version.phyRev);
2833 hw_name[used] = '\0';
2835 EXPORT_SYMBOL(ath9k_hw_name);