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 <asm/unaligned.h>
24 #define ATH9K_CLOCK_RATE_CCK 22
25 #define ATH9K_CLOCK_RATE_5GHZ_OFDM 40
26 #define ATH9K_CLOCK_RATE_2GHZ_OFDM 44
28 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
30 MODULE_AUTHOR("Atheros Communications");
31 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
32 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
33 MODULE_LICENSE("Dual BSD/GPL");
35 static int __init ath9k_init(void)
39 module_init(ath9k_init);
41 static void __exit ath9k_exit(void)
45 module_exit(ath9k_exit);
47 /* Private hardware callbacks */
49 static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
51 ath9k_hw_private_ops(ah)->init_cal_settings(ah);
54 static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
56 ath9k_hw_private_ops(ah)->init_mode_regs(ah);
59 static bool ath9k_hw_macversion_supported(struct ath_hw *ah)
61 struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
63 return priv_ops->macversion_supported(ah->hw_version.macVersion);
66 static u32 ath9k_hw_compute_pll_control(struct ath_hw *ah,
67 struct ath9k_channel *chan)
69 return ath9k_hw_private_ops(ah)->compute_pll_control(ah, chan);
72 static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
74 if (!ath9k_hw_private_ops(ah)->init_mode_gain_regs)
77 ath9k_hw_private_ops(ah)->init_mode_gain_regs(ah);
80 /********************/
81 /* Helper Functions */
82 /********************/
84 static u32 ath9k_hw_mac_clks(struct ath_hw *ah, u32 usecs)
86 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
88 if (!ah->curchan) /* should really check for CCK instead */
89 return usecs *ATH9K_CLOCK_RATE_CCK;
90 if (conf->channel->band == IEEE80211_BAND_2GHZ)
91 return usecs *ATH9K_CLOCK_RATE_2GHZ_OFDM;
92 return usecs *ATH9K_CLOCK_RATE_5GHZ_OFDM;
95 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
97 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
99 if (conf_is_ht40(conf))
100 return ath9k_hw_mac_clks(ah, usecs) * 2;
102 return ath9k_hw_mac_clks(ah, usecs);
105 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
109 BUG_ON(timeout < AH_TIME_QUANTUM);
111 for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
112 if ((REG_READ(ah, reg) & mask) == val)
115 udelay(AH_TIME_QUANTUM);
118 ath_print(ath9k_hw_common(ah), ATH_DBG_ANY,
119 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
120 timeout, reg, REG_READ(ah, reg), mask, val);
124 EXPORT_SYMBOL(ath9k_hw_wait);
126 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
131 for (i = 0, retval = 0; i < n; i++) {
132 retval = (retval << 1) | (val & 1);
138 bool ath9k_get_channel_edges(struct ath_hw *ah,
142 struct ath9k_hw_capabilities *pCap = &ah->caps;
144 if (flags & CHANNEL_5GHZ) {
145 *low = pCap->low_5ghz_chan;
146 *high = pCap->high_5ghz_chan;
149 if ((flags & CHANNEL_2GHZ)) {
150 *low = pCap->low_2ghz_chan;
151 *high = pCap->high_2ghz_chan;
157 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
159 u32 frameLen, u16 rateix,
162 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
168 case WLAN_RC_PHY_CCK:
169 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
172 numBits = frameLen << 3;
173 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
175 case WLAN_RC_PHY_OFDM:
176 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
177 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
178 numBits = OFDM_PLCP_BITS + (frameLen << 3);
179 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
180 txTime = OFDM_SIFS_TIME_QUARTER
181 + OFDM_PREAMBLE_TIME_QUARTER
182 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
183 } else if (ah->curchan &&
184 IS_CHAN_HALF_RATE(ah->curchan)) {
185 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
186 numBits = OFDM_PLCP_BITS + (frameLen << 3);
187 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
188 txTime = OFDM_SIFS_TIME_HALF +
189 OFDM_PREAMBLE_TIME_HALF
190 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
192 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
193 numBits = OFDM_PLCP_BITS + (frameLen << 3);
194 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
195 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
196 + (numSymbols * OFDM_SYMBOL_TIME);
200 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
201 "Unknown phy %u (rate ix %u)\n", phy, rateix);
208 EXPORT_SYMBOL(ath9k_hw_computetxtime);
210 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
211 struct ath9k_channel *chan,
212 struct chan_centers *centers)
216 if (!IS_CHAN_HT40(chan)) {
217 centers->ctl_center = centers->ext_center =
218 centers->synth_center = chan->channel;
222 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
223 (chan->chanmode == CHANNEL_G_HT40PLUS)) {
224 centers->synth_center =
225 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
228 centers->synth_center =
229 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
233 centers->ctl_center =
234 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
235 /* 25 MHz spacing is supported by hw but not on upper layers */
236 centers->ext_center =
237 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
244 static void ath9k_hw_read_revisions(struct ath_hw *ah)
248 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
251 val = REG_READ(ah, AR_SREV);
252 ah->hw_version.macVersion =
253 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
254 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
255 ah->is_pciexpress = (val & AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
257 if (!AR_SREV_9100(ah))
258 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
260 ah->hw_version.macRev = val & AR_SREV_REVISION;
262 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
263 ah->is_pciexpress = true;
267 /************************************/
268 /* HW Attach, Detach, Init Routines */
269 /************************************/
271 static void ath9k_hw_disablepcie(struct ath_hw *ah)
273 if (AR_SREV_9100(ah))
276 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
277 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
278 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
279 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
280 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
281 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
282 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
283 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
284 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
286 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
289 /* This should work for all families including legacy */
290 static bool ath9k_hw_chip_test(struct ath_hw *ah)
292 struct ath_common *common = ath9k_hw_common(ah);
293 u32 regAddr[2] = { AR_STA_ID0 };
295 u32 patternData[4] = { 0x55555555,
301 if (!AR_SREV_9300_20_OR_LATER(ah)) {
303 regAddr[1] = AR_PHY_BASE + (8 << 2);
307 for (i = 0; i < loop_max; i++) {
308 u32 addr = regAddr[i];
311 regHold[i] = REG_READ(ah, addr);
312 for (j = 0; j < 0x100; j++) {
313 wrData = (j << 16) | j;
314 REG_WRITE(ah, addr, wrData);
315 rdData = REG_READ(ah, addr);
316 if (rdData != wrData) {
317 ath_print(common, ATH_DBG_FATAL,
318 "address test failed "
319 "addr: 0x%08x - wr:0x%08x != "
321 addr, wrData, rdData);
325 for (j = 0; j < 4; j++) {
326 wrData = patternData[j];
327 REG_WRITE(ah, addr, wrData);
328 rdData = REG_READ(ah, addr);
329 if (wrData != rdData) {
330 ath_print(common, ATH_DBG_FATAL,
331 "address test failed "
332 "addr: 0x%08x - wr:0x%08x != "
334 addr, wrData, rdData);
338 REG_WRITE(ah, regAddr[i], regHold[i]);
345 static void ath9k_hw_init_config(struct ath_hw *ah)
349 ah->config.dma_beacon_response_time = 2;
350 ah->config.sw_beacon_response_time = 10;
351 ah->config.additional_swba_backoff = 0;
352 ah->config.ack_6mb = 0x0;
353 ah->config.cwm_ignore_extcca = 0;
354 ah->config.pcie_powersave_enable = 0;
355 ah->config.pcie_clock_req = 0;
356 ah->config.pcie_waen = 0;
357 ah->config.analog_shiftreg = 1;
358 ah->config.ofdm_trig_low = 200;
359 ah->config.ofdm_trig_high = 500;
360 ah->config.cck_trig_high = 200;
361 ah->config.cck_trig_low = 100;
364 * For now ANI is disabled for AR9003, it is still
367 if (!AR_SREV_9300_20_OR_LATER(ah))
368 ah->config.enable_ani = 1;
370 for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
371 ah->config.spurchans[i][0] = AR_NO_SPUR;
372 ah->config.spurchans[i][1] = AR_NO_SPUR;
375 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
376 ah->config.ht_enable = 1;
378 ah->config.ht_enable = 0;
380 ah->config.rx_intr_mitigation = true;
383 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
384 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
385 * This means we use it for all AR5416 devices, and the few
386 * minor PCI AR9280 devices out there.
388 * Serialization is required because these devices do not handle
389 * well the case of two concurrent reads/writes due to the latency
390 * involved. During one read/write another read/write can be issued
391 * on another CPU while the previous read/write may still be working
392 * on our hardware, if we hit this case the hardware poops in a loop.
393 * We prevent this by serializing reads and writes.
395 * This issue is not present on PCI-Express devices or pre-AR5416
396 * devices (legacy, 802.11abg).
398 if (num_possible_cpus() > 1)
399 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
402 static void ath9k_hw_init_defaults(struct ath_hw *ah)
404 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
406 regulatory->country_code = CTRY_DEFAULT;
407 regulatory->power_limit = MAX_RATE_POWER;
408 regulatory->tp_scale = ATH9K_TP_SCALE_MAX;
410 ah->hw_version.magic = AR5416_MAGIC;
411 ah->hw_version.subvendorid = 0;
414 if (!AR_SREV_9100(ah))
415 ah->ah_flags = AH_USE_EEPROM;
418 ah->sta_id1_defaults = AR_STA_ID1_CRPT_MIC_ENABLE;
419 ah->beacon_interval = 100;
420 ah->enable_32kHz_clock = DONT_USE_32KHZ;
421 ah->slottime = (u32) -1;
422 ah->globaltxtimeout = (u32) -1;
423 ah->power_mode = ATH9K_PM_UNDEFINED;
426 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
428 struct ath_common *common = ath9k_hw_common(ah);
432 u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
435 for (i = 0; i < 3; i++) {
436 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
438 common->macaddr[2 * i] = eeval >> 8;
439 common->macaddr[2 * i + 1] = eeval & 0xff;
441 if (sum == 0 || sum == 0xffff * 3)
442 return -EADDRNOTAVAIL;
447 static int ath9k_hw_post_init(struct ath_hw *ah)
451 if (!AR_SREV_9271(ah)) {
452 if (!ath9k_hw_chip_test(ah))
456 if (!AR_SREV_9300_20_OR_LATER(ah)) {
457 ecode = ar9002_hw_rf_claim(ah);
462 ecode = ath9k_hw_eeprom_init(ah);
466 ath_print(ath9k_hw_common(ah), ATH_DBG_CONFIG,
467 "Eeprom VER: %d, REV: %d\n",
468 ah->eep_ops->get_eeprom_ver(ah),
469 ah->eep_ops->get_eeprom_rev(ah));
471 ecode = ath9k_hw_rf_alloc_ext_banks(ah);
473 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
474 "Failed allocating banks for "
479 if (!AR_SREV_9100(ah)) {
480 ath9k_hw_ani_setup(ah);
481 ath9k_hw_ani_init(ah);
487 static void ath9k_hw_attach_ops(struct ath_hw *ah)
489 if (AR_SREV_9300_20_OR_LATER(ah))
490 ar9003_hw_attach_ops(ah);
492 ar9002_hw_attach_ops(ah);
495 /* Called for all hardware families */
496 static int __ath9k_hw_init(struct ath_hw *ah)
498 struct ath_common *common = ath9k_hw_common(ah);
501 if (ah->hw_version.devid == AR5416_AR9100_DEVID)
502 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
504 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
505 ath_print(common, ATH_DBG_FATAL,
506 "Couldn't reset chip\n");
510 ath9k_hw_init_defaults(ah);
511 ath9k_hw_init_config(ah);
513 ath9k_hw_attach_ops(ah);
515 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
516 ath_print(common, ATH_DBG_FATAL, "Couldn't wakeup chip\n");
520 if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
521 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
522 (AR_SREV_9280(ah) && !ah->is_pciexpress)) {
523 ah->config.serialize_regmode =
526 ah->config.serialize_regmode =
531 ath_print(common, ATH_DBG_RESET, "serialize_regmode is %d\n",
532 ah->config.serialize_regmode);
534 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
535 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
537 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
539 if (!ath9k_hw_macversion_supported(ah)) {
540 ath_print(common, ATH_DBG_FATAL,
541 "Mac Chip Rev 0x%02x.%x is not supported by "
542 "this driver\n", ah->hw_version.macVersion,
543 ah->hw_version.macRev);
547 if (AR_SREV_9271(ah) || AR_SREV_9100(ah))
548 ah->is_pciexpress = false;
550 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
551 ath9k_hw_init_cal_settings(ah);
553 ah->ani_function = ATH9K_ANI_ALL;
554 if (AR_SREV_9280_10_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah))
555 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
557 ath9k_hw_init_mode_regs(ah);
559 if (ah->is_pciexpress)
560 ath9k_hw_configpcipowersave(ah, 0, 0);
562 ath9k_hw_disablepcie(ah);
564 if (!AR_SREV_9300_20_OR_LATER(ah))
565 ar9002_hw_cck_chan14_spread(ah);
567 r = ath9k_hw_post_init(ah);
571 ath9k_hw_init_mode_gain_regs(ah);
572 r = ath9k_hw_fill_cap_info(ah);
576 r = ath9k_hw_init_macaddr(ah);
578 ath_print(common, ATH_DBG_FATAL,
579 "Failed to initialize MAC address\n");
583 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
584 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
586 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
588 if (AR_SREV_9300_20_OR_LATER(ah))
589 ar9003_hw_set_nf_limits(ah);
591 ath9k_init_nfcal_hist_buffer(ah);
593 common->state = ATH_HW_INITIALIZED;
598 int ath9k_hw_init(struct ath_hw *ah)
601 struct ath_common *common = ath9k_hw_common(ah);
603 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
604 switch (ah->hw_version.devid) {
605 case AR5416_DEVID_PCI:
606 case AR5416_DEVID_PCIE:
607 case AR5416_AR9100_DEVID:
608 case AR9160_DEVID_PCI:
609 case AR9280_DEVID_PCI:
610 case AR9280_DEVID_PCIE:
611 case AR9285_DEVID_PCIE:
612 case AR9287_DEVID_PCI:
613 case AR9287_DEVID_PCIE:
614 case AR2427_DEVID_PCIE:
615 case AR9300_DEVID_PCIE:
618 if (common->bus_ops->ath_bus_type == ATH_USB)
620 ath_print(common, ATH_DBG_FATAL,
621 "Hardware device ID 0x%04x not supported\n",
622 ah->hw_version.devid);
626 ret = __ath9k_hw_init(ah);
628 ath_print(common, ATH_DBG_FATAL,
629 "Unable to initialize hardware; "
630 "initialization status: %d\n", ret);
636 EXPORT_SYMBOL(ath9k_hw_init);
638 static void ath9k_hw_init_qos(struct ath_hw *ah)
640 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
641 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
643 REG_WRITE(ah, AR_QOS_NO_ACK,
644 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
645 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
646 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
648 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
649 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
650 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
651 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
652 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
655 static void ath9k_hw_init_pll(struct ath_hw *ah,
656 struct ath9k_channel *chan)
658 u32 pll = ath9k_hw_compute_pll_control(ah, chan);
660 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
662 /* Switch the core clock for ar9271 to 117Mhz */
663 if (AR_SREV_9271(ah)) {
665 REG_WRITE(ah, 0x50040, 0x304);
668 udelay(RTC_PLL_SETTLE_DELAY);
670 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
673 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
674 enum nl80211_iftype opmode)
676 u32 imr_reg = AR_IMR_TXERR |
682 if (AR_SREV_9300_20_OR_LATER(ah)) {
683 imr_reg |= AR_IMR_RXOK_HP;
684 if (ah->config.rx_intr_mitigation)
685 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
687 imr_reg |= AR_IMR_RXOK_LP;
690 if (ah->config.rx_intr_mitigation)
691 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
693 imr_reg |= AR_IMR_RXOK;
696 if (ah->config.tx_intr_mitigation)
697 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
699 imr_reg |= AR_IMR_TXOK;
701 if (opmode == NL80211_IFTYPE_AP)
702 imr_reg |= AR_IMR_MIB;
704 REG_WRITE(ah, AR_IMR, imr_reg);
705 ah->imrs2_reg |= AR_IMR_S2_GTT;
706 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
708 if (!AR_SREV_9100(ah)) {
709 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
710 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
711 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
714 if (AR_SREV_9300_20_OR_LATER(ah)) {
715 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
716 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
717 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
718 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
722 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
724 u32 val = ath9k_hw_mac_to_clks(ah, us);
725 val = min(val, (u32) 0xFFFF);
726 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
729 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
731 u32 val = ath9k_hw_mac_to_clks(ah, us);
732 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
733 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
736 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
738 u32 val = ath9k_hw_mac_to_clks(ah, us);
739 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
740 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
743 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
746 ath_print(ath9k_hw_common(ah), ATH_DBG_XMIT,
747 "bad global tx timeout %u\n", tu);
748 ah->globaltxtimeout = (u32) -1;
751 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
752 ah->globaltxtimeout = tu;
757 void ath9k_hw_init_global_settings(struct ath_hw *ah)
759 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
764 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
767 if (ah->misc_mode != 0)
768 REG_WRITE(ah, AR_PCU_MISC,
769 REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
771 if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ)
776 /* As defined by IEEE 802.11-2007 17.3.8.6 */
777 slottime = ah->slottime + 3 * ah->coverage_class;
778 acktimeout = slottime + sifstime;
781 * Workaround for early ACK timeouts, add an offset to match the
782 * initval's 64us ack timeout value.
783 * This was initially only meant to work around an issue with delayed
784 * BA frames in some implementations, but it has been found to fix ACK
785 * timeout issues in other cases as well.
787 if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
788 acktimeout += 64 - sifstime - ah->slottime;
790 ath9k_hw_setslottime(ah, slottime);
791 ath9k_hw_set_ack_timeout(ah, acktimeout);
792 ath9k_hw_set_cts_timeout(ah, acktimeout);
793 if (ah->globaltxtimeout != (u32) -1)
794 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
796 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
798 void ath9k_hw_deinit(struct ath_hw *ah)
800 struct ath_common *common = ath9k_hw_common(ah);
802 if (common->state < ATH_HW_INITIALIZED)
805 if (!AR_SREV_9100(ah))
806 ath9k_hw_ani_disable(ah);
808 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
811 ath9k_hw_rf_free_ext_banks(ah);
813 EXPORT_SYMBOL(ath9k_hw_deinit);
819 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
821 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
825 else if (IS_CHAN_G(chan))
833 /****************************************/
834 /* Reset and Channel Switching Routines */
835 /****************************************/
837 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
839 struct ath_common *common = ath9k_hw_common(ah);
843 * set AHB_MODE not to do cacheline prefetches
845 if (!AR_SREV_9300_20_OR_LATER(ah)) {
846 regval = REG_READ(ah, AR_AHB_MODE);
847 REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
851 * let mac dma reads be in 128 byte chunks
853 regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
854 REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
857 * Restore TX Trigger Level to its pre-reset value.
858 * The initial value depends on whether aggregation is enabled, and is
859 * adjusted whenever underruns are detected.
861 if (!AR_SREV_9300_20_OR_LATER(ah))
862 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
865 * let mac dma writes be in 128 byte chunks
867 regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
868 REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
871 * Setup receive FIFO threshold to hold off TX activities
873 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
875 if (AR_SREV_9300_20_OR_LATER(ah)) {
876 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
877 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
879 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
880 ah->caps.rx_status_len);
884 * reduce the number of usable entries in PCU TXBUF to avoid
885 * wrap around issues.
887 if (AR_SREV_9285(ah)) {
888 /* For AR9285 the number of Fifos are reduced to half.
889 * So set the usable tx buf size also to half to
890 * avoid data/delimiter underruns
892 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
893 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
894 } else if (!AR_SREV_9271(ah)) {
895 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
896 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
900 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
904 val = REG_READ(ah, AR_STA_ID1);
905 val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
907 case NL80211_IFTYPE_AP:
908 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
909 | AR_STA_ID1_KSRCH_MODE);
910 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
912 case NL80211_IFTYPE_ADHOC:
913 case NL80211_IFTYPE_MESH_POINT:
914 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
915 | AR_STA_ID1_KSRCH_MODE);
916 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
918 case NL80211_IFTYPE_STATION:
919 case NL80211_IFTYPE_MONITOR:
920 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
925 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
926 u32 *coef_mantissa, u32 *coef_exponent)
928 u32 coef_exp, coef_man;
930 for (coef_exp = 31; coef_exp > 0; coef_exp--)
931 if ((coef_scaled >> coef_exp) & 0x1)
934 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
936 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
938 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
939 *coef_exponent = coef_exp - 16;
942 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
947 if (AR_SREV_9100(ah)) {
948 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
949 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
950 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
951 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
952 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
955 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
956 AR_RTC_FORCE_WAKE_ON_INT);
958 if (AR_SREV_9100(ah)) {
959 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
960 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
962 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
964 (AR_INTR_SYNC_LOCAL_TIMEOUT |
965 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
967 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
970 if (!AR_SREV_9300_20_OR_LATER(ah))
972 REG_WRITE(ah, AR_RC, val);
974 } else if (!AR_SREV_9300_20_OR_LATER(ah))
975 REG_WRITE(ah, AR_RC, AR_RC_AHB);
977 rst_flags = AR_RTC_RC_MAC_WARM;
978 if (type == ATH9K_RESET_COLD)
979 rst_flags |= AR_RTC_RC_MAC_COLD;
982 REG_WRITE(ah, AR_RTC_RC, rst_flags);
985 REG_WRITE(ah, AR_RTC_RC, 0);
986 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
987 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
988 "RTC stuck in MAC reset\n");
992 if (!AR_SREV_9100(ah))
993 REG_WRITE(ah, AR_RC, 0);
995 if (AR_SREV_9100(ah))
1001 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1003 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1004 AR_RTC_FORCE_WAKE_ON_INT);
1006 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1007 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1009 REG_WRITE(ah, AR_RTC_RESET, 0);
1011 if (!AR_SREV_9300_20_OR_LATER(ah))
1014 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1015 REG_WRITE(ah, AR_RC, 0);
1017 REG_WRITE(ah, AR_RTC_RESET, 1);
1019 if (!ath9k_hw_wait(ah,
1024 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1025 "RTC not waking up\n");
1029 ath9k_hw_read_revisions(ah);
1031 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1034 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1036 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1037 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1040 case ATH9K_RESET_POWER_ON:
1041 return ath9k_hw_set_reset_power_on(ah);
1042 case ATH9K_RESET_WARM:
1043 case ATH9K_RESET_COLD:
1044 return ath9k_hw_set_reset(ah, type);
1050 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1051 struct ath9k_channel *chan)
1053 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1054 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1056 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1059 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1062 ah->chip_fullsleep = false;
1063 ath9k_hw_init_pll(ah, chan);
1064 ath9k_hw_set_rfmode(ah, chan);
1069 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1070 struct ath9k_channel *chan)
1072 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1073 struct ath_common *common = ath9k_hw_common(ah);
1074 struct ieee80211_channel *channel = chan->chan;
1078 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1079 if (ath9k_hw_numtxpending(ah, qnum)) {
1080 ath_print(common, ATH_DBG_QUEUE,
1081 "Transmit frames pending on "
1082 "queue %d\n", qnum);
1087 if (!ath9k_hw_rfbus_req(ah)) {
1088 ath_print(common, ATH_DBG_FATAL,
1089 "Could not kill baseband RX\n");
1093 ath9k_hw_set_channel_regs(ah, chan);
1095 r = ath9k_hw_rf_set_freq(ah, chan);
1097 ath_print(common, ATH_DBG_FATAL,
1098 "Failed to set channel\n");
1102 ah->eep_ops->set_txpower(ah, chan,
1103 ath9k_regd_get_ctl(regulatory, chan),
1104 channel->max_antenna_gain * 2,
1105 channel->max_power * 2,
1106 min((u32) MAX_RATE_POWER,
1107 (u32) regulatory->power_limit));
1109 ath9k_hw_rfbus_done(ah);
1111 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1112 ath9k_hw_set_delta_slope(ah, chan);
1114 ath9k_hw_spur_mitigate_freq(ah, chan);
1116 if (!chan->oneTimeCalsDone)
1117 chan->oneTimeCalsDone = true;
1122 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1123 bool bChannelChange)
1125 struct ath_common *common = ath9k_hw_common(ah);
1127 struct ath9k_channel *curchan = ah->curchan;
1133 ah->txchainmask = common->tx_chainmask;
1134 ah->rxchainmask = common->rx_chainmask;
1136 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1139 if (curchan && !ah->chip_fullsleep)
1140 ath9k_hw_getnf(ah, curchan);
1142 if (bChannelChange &&
1143 (ah->chip_fullsleep != true) &&
1144 (ah->curchan != NULL) &&
1145 (chan->channel != ah->curchan->channel) &&
1146 ((chan->channelFlags & CHANNEL_ALL) ==
1147 (ah->curchan->channelFlags & CHANNEL_ALL)) &&
1148 !(AR_SREV_9280(ah) || IS_CHAN_A_5MHZ_SPACED(chan) ||
1149 IS_CHAN_A_5MHZ_SPACED(ah->curchan))) {
1151 if (ath9k_hw_channel_change(ah, chan)) {
1152 ath9k_hw_loadnf(ah, ah->curchan);
1153 ath9k_hw_start_nfcal(ah);
1158 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1159 if (saveDefAntenna == 0)
1162 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1164 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1165 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1166 tsf = ath9k_hw_gettsf64(ah);
1168 saveLedState = REG_READ(ah, AR_CFG_LED) &
1169 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1170 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1172 ath9k_hw_mark_phy_inactive(ah);
1174 /* Only required on the first reset */
1175 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1177 AR9271_RESET_POWER_DOWN_CONTROL,
1178 AR9271_RADIO_RF_RST);
1182 if (!ath9k_hw_chip_reset(ah, chan)) {
1183 ath_print(common, ATH_DBG_FATAL, "Chip reset failed\n");
1187 /* Only required on the first reset */
1188 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1189 ah->htc_reset_init = false;
1191 AR9271_RESET_POWER_DOWN_CONTROL,
1192 AR9271_GATE_MAC_CTL);
1197 if (tsf && AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1198 ath9k_hw_settsf64(ah, tsf);
1200 if (AR_SREV_9280_10_OR_LATER(ah))
1201 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1203 r = ath9k_hw_process_ini(ah, chan);
1207 /* Setup MFP options for CCMP */
1208 if (AR_SREV_9280_20_OR_LATER(ah)) {
1209 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1210 * frames when constructing CCMP AAD. */
1211 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1213 ah->sw_mgmt_crypto = false;
1214 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1215 /* Disable hardware crypto for management frames */
1216 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1217 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1218 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1219 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1220 ah->sw_mgmt_crypto = true;
1222 ah->sw_mgmt_crypto = true;
1224 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1225 ath9k_hw_set_delta_slope(ah, chan);
1227 ath9k_hw_spur_mitigate_freq(ah, chan);
1228 ah->eep_ops->set_board_values(ah, chan);
1230 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1231 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
1233 | AR_STA_ID1_RTS_USE_DEF
1235 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1236 | ah->sta_id1_defaults);
1237 ath9k_hw_set_operating_mode(ah, ah->opmode);
1239 ath_hw_setbssidmask(common);
1241 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1243 ath9k_hw_write_associd(ah);
1245 REG_WRITE(ah, AR_ISR, ~0);
1247 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1249 r = ath9k_hw_rf_set_freq(ah, chan);
1253 for (i = 0; i < AR_NUM_DCU; i++)
1254 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1257 for (i = 0; i < ah->caps.total_queues; i++)
1258 ath9k_hw_resettxqueue(ah, i);
1260 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1261 ath9k_hw_init_qos(ah);
1263 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1264 ath9k_enable_rfkill(ah);
1266 ath9k_hw_init_global_settings(ah);
1268 if (AR_SREV_9287_12_OR_LATER(ah)) {
1269 REG_WRITE(ah, AR_D_GBL_IFS_SIFS,
1270 AR_D_GBL_IFS_SIFS_ASYNC_FIFO_DUR);
1271 REG_WRITE(ah, AR_D_GBL_IFS_SLOT,
1272 AR_D_GBL_IFS_SLOT_ASYNC_FIFO_DUR);
1273 REG_WRITE(ah, AR_D_GBL_IFS_EIFS,
1274 AR_D_GBL_IFS_EIFS_ASYNC_FIFO_DUR);
1276 REG_WRITE(ah, AR_TIME_OUT, AR_TIME_OUT_ACK_CTS_ASYNC_FIFO_DUR);
1277 REG_WRITE(ah, AR_USEC, AR_USEC_ASYNC_FIFO_DUR);
1279 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
1280 AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
1281 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
1282 AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
1284 if (AR_SREV_9287_12_OR_LATER(ah)) {
1285 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1286 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
1289 REG_WRITE(ah, AR_STA_ID1,
1290 REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
1292 ath9k_hw_set_dma(ah);
1294 REG_WRITE(ah, AR_OBS, 8);
1296 if (ah->config.rx_intr_mitigation) {
1297 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
1298 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
1301 if (ah->config.tx_intr_mitigation) {
1302 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1303 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1306 ath9k_hw_init_bb(ah, chan);
1308 if (!ath9k_hw_init_cal(ah, chan))
1311 ath9k_hw_restore_chainmask(ah);
1312 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1315 * For big endian systems turn on swapping for descriptors
1317 if (AR_SREV_9100(ah)) {
1319 mask = REG_READ(ah, AR_CFG);
1320 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1321 ath_print(common, ATH_DBG_RESET,
1322 "CFG Byte Swap Set 0x%x\n", mask);
1325 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1326 REG_WRITE(ah, AR_CFG, mask);
1327 ath_print(common, ATH_DBG_RESET,
1328 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
1331 /* Configure AR9271 target WLAN */
1332 if (AR_SREV_9271(ah))
1333 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1336 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1340 if (ah->btcoex_hw.enabled)
1341 ath9k_hw_btcoex_enable(ah);
1345 EXPORT_SYMBOL(ath9k_hw_reset);
1347 /************************/
1348 /* Key Cache Management */
1349 /************************/
1351 bool ath9k_hw_keyreset(struct ath_hw *ah, u16 entry)
1355 if (entry >= ah->caps.keycache_size) {
1356 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1357 "keychache entry %u out of range\n", entry);
1361 keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
1363 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
1364 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
1365 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
1366 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
1367 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
1368 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
1369 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
1370 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
1372 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1373 u16 micentry = entry + 64;
1375 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
1376 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1377 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
1378 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1384 EXPORT_SYMBOL(ath9k_hw_keyreset);
1386 bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
1390 if (entry >= ah->caps.keycache_size) {
1391 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1392 "keychache entry %u out of range\n", entry);
1397 macHi = (mac[5] << 8) | mac[4];
1398 macLo = (mac[3] << 24) |
1403 macLo |= (macHi & 1) << 31;
1408 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
1409 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | AR_KEYTABLE_VALID);
1413 EXPORT_SYMBOL(ath9k_hw_keysetmac);
1415 bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
1416 const struct ath9k_keyval *k,
1419 const struct ath9k_hw_capabilities *pCap = &ah->caps;
1420 struct ath_common *common = ath9k_hw_common(ah);
1421 u32 key0, key1, key2, key3, key4;
1424 if (entry >= pCap->keycache_size) {
1425 ath_print(common, ATH_DBG_FATAL,
1426 "keycache entry %u out of range\n", entry);
1430 switch (k->kv_type) {
1431 case ATH9K_CIPHER_AES_OCB:
1432 keyType = AR_KEYTABLE_TYPE_AES;
1434 case ATH9K_CIPHER_AES_CCM:
1435 if (!(pCap->hw_caps & ATH9K_HW_CAP_CIPHER_AESCCM)) {
1436 ath_print(common, ATH_DBG_ANY,
1437 "AES-CCM not supported by mac rev 0x%x\n",
1438 ah->hw_version.macRev);
1441 keyType = AR_KEYTABLE_TYPE_CCM;
1443 case ATH9K_CIPHER_TKIP:
1444 keyType = AR_KEYTABLE_TYPE_TKIP;
1445 if (ATH9K_IS_MIC_ENABLED(ah)
1446 && entry + 64 >= pCap->keycache_size) {
1447 ath_print(common, ATH_DBG_ANY,
1448 "entry %u inappropriate for TKIP\n", entry);
1452 case ATH9K_CIPHER_WEP:
1453 if (k->kv_len < WLAN_KEY_LEN_WEP40) {
1454 ath_print(common, ATH_DBG_ANY,
1455 "WEP key length %u too small\n", k->kv_len);
1458 if (k->kv_len <= WLAN_KEY_LEN_WEP40)
1459 keyType = AR_KEYTABLE_TYPE_40;
1460 else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1461 keyType = AR_KEYTABLE_TYPE_104;
1463 keyType = AR_KEYTABLE_TYPE_128;
1465 case ATH9K_CIPHER_CLR:
1466 keyType = AR_KEYTABLE_TYPE_CLR;
1469 ath_print(common, ATH_DBG_FATAL,
1470 "cipher %u not supported\n", k->kv_type);
1474 key0 = get_unaligned_le32(k->kv_val + 0);
1475 key1 = get_unaligned_le16(k->kv_val + 4);
1476 key2 = get_unaligned_le32(k->kv_val + 6);
1477 key3 = get_unaligned_le16(k->kv_val + 10);
1478 key4 = get_unaligned_le32(k->kv_val + 12);
1479 if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1483 * Note: Key cache registers access special memory area that requires
1484 * two 32-bit writes to actually update the values in the internal
1485 * memory. Consequently, the exact order and pairs used here must be
1489 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1490 u16 micentry = entry + 64;
1493 * Write inverted key[47:0] first to avoid Michael MIC errors
1494 * on frames that could be sent or received at the same time.
1495 * The correct key will be written in the end once everything
1498 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), ~key0);
1499 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), ~key1);
1501 /* Write key[95:48] */
1502 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1503 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1505 /* Write key[127:96] and key type */
1506 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1507 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1509 /* Write MAC address for the entry */
1510 (void) ath9k_hw_keysetmac(ah, entry, mac);
1512 if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) {
1514 * TKIP uses two key cache entries:
1515 * Michael MIC TX/RX keys in the same key cache entry
1516 * (idx = main index + 64):
1517 * key0 [31:0] = RX key [31:0]
1518 * key1 [15:0] = TX key [31:16]
1519 * key1 [31:16] = reserved
1520 * key2 [31:0] = RX key [63:32]
1521 * key3 [15:0] = TX key [15:0]
1522 * key3 [31:16] = reserved
1523 * key4 [31:0] = TX key [63:32]
1525 u32 mic0, mic1, mic2, mic3, mic4;
1527 mic0 = get_unaligned_le32(k->kv_mic + 0);
1528 mic2 = get_unaligned_le32(k->kv_mic + 4);
1529 mic1 = get_unaligned_le16(k->kv_txmic + 2) & 0xffff;
1530 mic3 = get_unaligned_le16(k->kv_txmic + 0) & 0xffff;
1531 mic4 = get_unaligned_le32(k->kv_txmic + 4);
1533 /* Write RX[31:0] and TX[31:16] */
1534 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1535 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), mic1);
1537 /* Write RX[63:32] and TX[15:0] */
1538 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1539 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), mic3);
1541 /* Write TX[63:32] and keyType(reserved) */
1542 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), mic4);
1543 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1544 AR_KEYTABLE_TYPE_CLR);
1548 * TKIP uses four key cache entries (two for group
1550 * Michael MIC TX/RX keys are in different key cache
1551 * entries (idx = main index + 64 for TX and
1552 * main index + 32 + 96 for RX):
1553 * key0 [31:0] = TX/RX MIC key [31:0]
1554 * key1 [31:0] = reserved
1555 * key2 [31:0] = TX/RX MIC key [63:32]
1556 * key3 [31:0] = reserved
1557 * key4 [31:0] = reserved
1559 * Upper layer code will call this function separately
1560 * for TX and RX keys when these registers offsets are
1565 mic0 = get_unaligned_le32(k->kv_mic + 0);
1566 mic2 = get_unaligned_le32(k->kv_mic + 4);
1568 /* Write MIC key[31:0] */
1569 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1570 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1572 /* Write MIC key[63:32] */
1573 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1574 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1576 /* Write TX[63:32] and keyType(reserved) */
1577 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
1578 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1579 AR_KEYTABLE_TYPE_CLR);
1582 /* MAC address registers are reserved for the MIC entry */
1583 REG_WRITE(ah, AR_KEYTABLE_MAC0(micentry), 0);
1584 REG_WRITE(ah, AR_KEYTABLE_MAC1(micentry), 0);
1587 * Write the correct (un-inverted) key[47:0] last to enable
1588 * TKIP now that all other registers are set with correct
1591 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1592 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1594 /* Write key[47:0] */
1595 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1596 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1598 /* Write key[95:48] */
1599 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1600 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1602 /* Write key[127:96] and key type */
1603 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1604 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1606 /* Write MAC address for the entry */
1607 (void) ath9k_hw_keysetmac(ah, entry, mac);
1612 EXPORT_SYMBOL(ath9k_hw_set_keycache_entry);
1614 bool ath9k_hw_keyisvalid(struct ath_hw *ah, u16 entry)
1616 if (entry < ah->caps.keycache_size) {
1617 u32 val = REG_READ(ah, AR_KEYTABLE_MAC1(entry));
1618 if (val & AR_KEYTABLE_VALID)
1623 EXPORT_SYMBOL(ath9k_hw_keyisvalid);
1625 /******************************/
1626 /* Power Management (Chipset) */
1627 /******************************/
1630 * Notify Power Mgt is disabled in self-generated frames.
1631 * If requested, force chip to sleep.
1633 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
1635 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1638 * Clear the RTC force wake bit to allow the
1639 * mac to go to sleep.
1641 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1642 AR_RTC_FORCE_WAKE_EN);
1643 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1644 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1646 /* Shutdown chip. Active low */
1647 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah))
1648 REG_CLR_BIT(ah, (AR_RTC_RESET),
1654 * Notify Power Management is enabled in self-generating
1655 * frames. If request, set power mode of chip to
1656 * auto/normal. Duration in units of 128us (1/8 TU).
1658 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
1660 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1662 struct ath9k_hw_capabilities *pCap = &ah->caps;
1664 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1665 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1666 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1667 AR_RTC_FORCE_WAKE_ON_INT);
1670 * Clear the RTC force wake bit to allow the
1671 * mac to go to sleep.
1673 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1674 AR_RTC_FORCE_WAKE_EN);
1679 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
1685 if ((REG_READ(ah, AR_RTC_STATUS) &
1686 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1687 if (ath9k_hw_set_reset_reg(ah,
1688 ATH9K_RESET_POWER_ON) != true) {
1691 if (!AR_SREV_9300_20_OR_LATER(ah))
1692 ath9k_hw_init_pll(ah, NULL);
1694 if (AR_SREV_9100(ah))
1695 REG_SET_BIT(ah, AR_RTC_RESET,
1698 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1699 AR_RTC_FORCE_WAKE_EN);
1702 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1703 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1704 if (val == AR_RTC_STATUS_ON)
1707 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1708 AR_RTC_FORCE_WAKE_EN);
1711 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1712 "Failed to wakeup in %uus\n",
1713 POWER_UP_TIME / 20);
1718 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1723 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
1725 struct ath_common *common = ath9k_hw_common(ah);
1726 int status = true, setChip = true;
1727 static const char *modes[] = {
1734 if (ah->power_mode == mode)
1737 ath_print(common, ATH_DBG_RESET, "%s -> %s\n",
1738 modes[ah->power_mode], modes[mode]);
1741 case ATH9K_PM_AWAKE:
1742 status = ath9k_hw_set_power_awake(ah, setChip);
1744 case ATH9K_PM_FULL_SLEEP:
1745 ath9k_set_power_sleep(ah, setChip);
1746 ah->chip_fullsleep = true;
1748 case ATH9K_PM_NETWORK_SLEEP:
1749 ath9k_set_power_network_sleep(ah, setChip);
1752 ath_print(common, ATH_DBG_FATAL,
1753 "Unknown power mode %u\n", mode);
1756 ah->power_mode = mode;
1760 EXPORT_SYMBOL(ath9k_hw_setpower);
1762 /*******************/
1763 /* Beacon Handling */
1764 /*******************/
1766 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
1770 ah->beacon_interval = beacon_period;
1772 switch (ah->opmode) {
1773 case NL80211_IFTYPE_STATION:
1774 case NL80211_IFTYPE_MONITOR:
1775 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1776 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, 0xffff);
1777 REG_WRITE(ah, AR_NEXT_SWBA, 0x7ffff);
1778 flags |= AR_TBTT_TIMER_EN;
1780 case NL80211_IFTYPE_ADHOC:
1781 case NL80211_IFTYPE_MESH_POINT:
1782 REG_SET_BIT(ah, AR_TXCFG,
1783 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
1784 REG_WRITE(ah, AR_NEXT_NDP_TIMER,
1785 TU_TO_USEC(next_beacon +
1786 (ah->atim_window ? ah->
1788 flags |= AR_NDP_TIMER_EN;
1789 case NL80211_IFTYPE_AP:
1790 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1791 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT,
1792 TU_TO_USEC(next_beacon -
1794 dma_beacon_response_time));
1795 REG_WRITE(ah, AR_NEXT_SWBA,
1796 TU_TO_USEC(next_beacon -
1798 sw_beacon_response_time));
1800 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
1803 ath_print(ath9k_hw_common(ah), ATH_DBG_BEACON,
1804 "%s: unsupported opmode: %d\n",
1805 __func__, ah->opmode);
1810 REG_WRITE(ah, AR_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1811 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1812 REG_WRITE(ah, AR_SWBA_PERIOD, TU_TO_USEC(beacon_period));
1813 REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
1815 beacon_period &= ~ATH9K_BEACON_ENA;
1816 if (beacon_period & ATH9K_BEACON_RESET_TSF) {
1817 ath9k_hw_reset_tsf(ah);
1820 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
1822 EXPORT_SYMBOL(ath9k_hw_beaconinit);
1824 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
1825 const struct ath9k_beacon_state *bs)
1827 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
1828 struct ath9k_hw_capabilities *pCap = &ah->caps;
1829 struct ath_common *common = ath9k_hw_common(ah);
1831 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
1833 REG_WRITE(ah, AR_BEACON_PERIOD,
1834 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1835 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
1836 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1838 REG_RMW_FIELD(ah, AR_RSSI_THR,
1839 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
1841 beaconintval = bs->bs_intval & ATH9K_BEACON_PERIOD;
1843 if (bs->bs_sleepduration > beaconintval)
1844 beaconintval = bs->bs_sleepduration;
1846 dtimperiod = bs->bs_dtimperiod;
1847 if (bs->bs_sleepduration > dtimperiod)
1848 dtimperiod = bs->bs_sleepduration;
1850 if (beaconintval == dtimperiod)
1851 nextTbtt = bs->bs_nextdtim;
1853 nextTbtt = bs->bs_nexttbtt;
1855 ath_print(common, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
1856 ath_print(common, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
1857 ath_print(common, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
1858 ath_print(common, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
1860 REG_WRITE(ah, AR_NEXT_DTIM,
1861 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
1862 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
1864 REG_WRITE(ah, AR_SLEEP1,
1865 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
1866 | AR_SLEEP1_ASSUME_DTIM);
1868 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
1869 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
1871 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
1873 REG_WRITE(ah, AR_SLEEP2,
1874 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
1876 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
1877 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
1879 REG_SET_BIT(ah, AR_TIMER_MODE,
1880 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
1883 /* TSF Out of Range Threshold */
1884 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
1886 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
1888 /*******************/
1889 /* HW Capabilities */
1890 /*******************/
1892 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
1894 struct ath9k_hw_capabilities *pCap = &ah->caps;
1895 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1896 struct ath_common *common = ath9k_hw_common(ah);
1897 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
1899 u16 capField = 0, eeval;
1901 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
1902 regulatory->current_rd = eeval;
1904 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_1);
1905 if (AR_SREV_9285_10_OR_LATER(ah))
1906 eeval |= AR9285_RDEXT_DEFAULT;
1907 regulatory->current_rd_ext = eeval;
1909 capField = ah->eep_ops->get_eeprom(ah, EEP_OP_CAP);
1911 if (ah->opmode != NL80211_IFTYPE_AP &&
1912 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
1913 if (regulatory->current_rd == 0x64 ||
1914 regulatory->current_rd == 0x65)
1915 regulatory->current_rd += 5;
1916 else if (regulatory->current_rd == 0x41)
1917 regulatory->current_rd = 0x43;
1918 ath_print(common, ATH_DBG_REGULATORY,
1919 "regdomain mapped to 0x%x\n", regulatory->current_rd);
1922 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
1923 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
1924 ath_print(common, ATH_DBG_FATAL,
1925 "no band has been marked as supported in EEPROM.\n");
1929 bitmap_zero(pCap->wireless_modes, ATH9K_MODE_MAX);
1931 if (eeval & AR5416_OPFLAGS_11A) {
1932 set_bit(ATH9K_MODE_11A, pCap->wireless_modes);
1933 if (ah->config.ht_enable) {
1934 if (!(eeval & AR5416_OPFLAGS_N_5G_HT20))
1935 set_bit(ATH9K_MODE_11NA_HT20,
1936 pCap->wireless_modes);
1937 if (!(eeval & AR5416_OPFLAGS_N_5G_HT40)) {
1938 set_bit(ATH9K_MODE_11NA_HT40PLUS,
1939 pCap->wireless_modes);
1940 set_bit(ATH9K_MODE_11NA_HT40MINUS,
1941 pCap->wireless_modes);
1946 if (eeval & AR5416_OPFLAGS_11G) {
1947 set_bit(ATH9K_MODE_11G, pCap->wireless_modes);
1948 if (ah->config.ht_enable) {
1949 if (!(eeval & AR5416_OPFLAGS_N_2G_HT20))
1950 set_bit(ATH9K_MODE_11NG_HT20,
1951 pCap->wireless_modes);
1952 if (!(eeval & AR5416_OPFLAGS_N_2G_HT40)) {
1953 set_bit(ATH9K_MODE_11NG_HT40PLUS,
1954 pCap->wireless_modes);
1955 set_bit(ATH9K_MODE_11NG_HT40MINUS,
1956 pCap->wireless_modes);
1961 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
1963 * For AR9271 we will temporarilly uses the rx chainmax as read from
1966 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
1967 !(eeval & AR5416_OPFLAGS_11A) &&
1968 !(AR_SREV_9271(ah)))
1969 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
1970 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
1972 /* Use rx_chainmask from EEPROM. */
1973 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
1975 if (!(AR_SREV_9280(ah) && (ah->hw_version.macRev == 0)))
1976 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
1978 pCap->low_2ghz_chan = 2312;
1979 pCap->high_2ghz_chan = 2732;
1981 pCap->low_5ghz_chan = 4920;
1982 pCap->high_5ghz_chan = 6100;
1984 pCap->hw_caps &= ~ATH9K_HW_CAP_CIPHER_CKIP;
1985 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_TKIP;
1986 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_AESCCM;
1988 pCap->hw_caps &= ~ATH9K_HW_CAP_MIC_CKIP;
1989 pCap->hw_caps |= ATH9K_HW_CAP_MIC_TKIP;
1990 pCap->hw_caps |= ATH9K_HW_CAP_MIC_AESCCM;
1992 if (ah->config.ht_enable)
1993 pCap->hw_caps |= ATH9K_HW_CAP_HT;
1995 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
1997 pCap->hw_caps |= ATH9K_HW_CAP_GTT;
1998 pCap->hw_caps |= ATH9K_HW_CAP_VEOL;
1999 pCap->hw_caps |= ATH9K_HW_CAP_BSSIDMASK;
2000 pCap->hw_caps &= ~ATH9K_HW_CAP_MCAST_KEYSEARCH;
2002 if (capField & AR_EEPROM_EEPCAP_MAXQCU)
2003 pCap->total_queues =
2004 MS(capField, AR_EEPROM_EEPCAP_MAXQCU);
2006 pCap->total_queues = ATH9K_NUM_TX_QUEUES;
2008 if (capField & AR_EEPROM_EEPCAP_KC_ENTRIES)
2009 pCap->keycache_size =
2010 1 << MS(capField, AR_EEPROM_EEPCAP_KC_ENTRIES);
2012 pCap->keycache_size = AR_KEYTABLE_SIZE;
2014 pCap->hw_caps |= ATH9K_HW_CAP_FASTCC;
2016 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
2017 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD >> 1;
2019 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD;
2021 if (AR_SREV_9271(ah))
2022 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2023 else if (AR_SREV_9285_10_OR_LATER(ah))
2024 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2025 else if (AR_SREV_9280_10_OR_LATER(ah))
2026 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2028 pCap->num_gpio_pins = AR_NUM_GPIO;
2030 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
2031 pCap->hw_caps |= ATH9K_HW_CAP_CST;
2032 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2034 pCap->rts_aggr_limit = (8 * 1024);
2037 pCap->hw_caps |= ATH9K_HW_CAP_ENHANCEDPM;
2039 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
2040 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2041 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2043 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2044 ah->rfkill_polarity =
2045 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2047 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2050 if (AR_SREV_9271(ah))
2051 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2053 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2055 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2056 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2058 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2060 if (regulatory->current_rd_ext & (1 << REG_EXT_JAPAN_MIDBAND)) {
2062 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2063 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN |
2064 AR_EEPROM_EEREGCAP_EN_KK_U2 |
2065 AR_EEPROM_EEREGCAP_EN_KK_MIDBAND;
2068 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2069 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN;
2072 /* Advertise midband for AR5416 with FCC midband set in eeprom */
2073 if (regulatory->current_rd_ext & (1 << REG_EXT_FCC_MIDBAND) &&
2075 pCap->reg_cap |= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND;
2077 pCap->num_antcfg_5ghz =
2078 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_5GHZ);
2079 pCap->num_antcfg_2ghz =
2080 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
2082 if (AR_SREV_9280_10_OR_LATER(ah) &&
2083 ath9k_hw_btcoex_supported(ah)) {
2084 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
2085 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
2087 if (AR_SREV_9285(ah)) {
2088 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
2089 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
2091 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
2094 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
2097 if (AR_SREV_9300_20_OR_LATER(ah)) {
2098 pCap->hw_caps |= ATH9K_HW_CAP_EDMA;
2099 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2100 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2101 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2102 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2104 pCap->tx_desc_len = sizeof(struct ath_desc);
2107 if (AR_SREV_9300_20_OR_LATER(ah))
2108 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2113 bool ath9k_hw_getcapability(struct ath_hw *ah, enum ath9k_capability_type type,
2114 u32 capability, u32 *result)
2116 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2118 case ATH9K_CAP_CIPHER:
2119 switch (capability) {
2120 case ATH9K_CIPHER_AES_CCM:
2121 case ATH9K_CIPHER_AES_OCB:
2122 case ATH9K_CIPHER_TKIP:
2123 case ATH9K_CIPHER_WEP:
2124 case ATH9K_CIPHER_MIC:
2125 case ATH9K_CIPHER_CLR:
2130 case ATH9K_CAP_TKIP_MIC:
2131 switch (capability) {
2135 return (ah->sta_id1_defaults &
2136 AR_STA_ID1_CRPT_MIC_ENABLE) ? true :
2139 case ATH9K_CAP_TKIP_SPLIT:
2140 return (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) ?
2142 case ATH9K_CAP_MCAST_KEYSRCH:
2143 switch (capability) {
2147 if (REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_ADHOC) {
2150 return (ah->sta_id1_defaults &
2151 AR_STA_ID1_MCAST_KSRCH) ? true :
2156 case ATH9K_CAP_TXPOW:
2157 switch (capability) {
2161 *result = regulatory->power_limit;
2164 *result = regulatory->max_power_level;
2167 *result = regulatory->tp_scale;
2172 return (AR_SREV_9280_20_OR_LATER(ah) &&
2173 (ah->eep_ops->get_eeprom(ah, EEP_RC_CHAIN_MASK) == 1))
2179 EXPORT_SYMBOL(ath9k_hw_getcapability);
2181 bool ath9k_hw_setcapability(struct ath_hw *ah, enum ath9k_capability_type type,
2182 u32 capability, u32 setting, int *status)
2185 case ATH9K_CAP_TKIP_MIC:
2187 ah->sta_id1_defaults |=
2188 AR_STA_ID1_CRPT_MIC_ENABLE;
2190 ah->sta_id1_defaults &=
2191 ~AR_STA_ID1_CRPT_MIC_ENABLE;
2193 case ATH9K_CAP_MCAST_KEYSRCH:
2195 ah->sta_id1_defaults |= AR_STA_ID1_MCAST_KSRCH;
2197 ah->sta_id1_defaults &= ~AR_STA_ID1_MCAST_KSRCH;
2203 EXPORT_SYMBOL(ath9k_hw_setcapability);
2205 /****************************/
2206 /* GPIO / RFKILL / Antennae */
2207 /****************************/
2209 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2213 u32 gpio_shift, tmp;
2216 addr = AR_GPIO_OUTPUT_MUX3;
2218 addr = AR_GPIO_OUTPUT_MUX2;
2220 addr = AR_GPIO_OUTPUT_MUX1;
2222 gpio_shift = (gpio % 6) * 5;
2224 if (AR_SREV_9280_20_OR_LATER(ah)
2225 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2226 REG_RMW(ah, addr, (type << gpio_shift),
2227 (0x1f << gpio_shift));
2229 tmp = REG_READ(ah, addr);
2230 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2231 tmp &= ~(0x1f << gpio_shift);
2232 tmp |= (type << gpio_shift);
2233 REG_WRITE(ah, addr, tmp);
2237 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2241 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2243 gpio_shift = gpio << 1;
2247 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2248 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2250 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2252 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2254 #define MS_REG_READ(x, y) \
2255 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2257 if (gpio >= ah->caps.num_gpio_pins)
2260 if (AR_SREV_9300_20_OR_LATER(ah))
2261 return MS_REG_READ(AR9300, gpio) != 0;
2262 else if (AR_SREV_9271(ah))
2263 return MS_REG_READ(AR9271, gpio) != 0;
2264 else if (AR_SREV_9287_10_OR_LATER(ah))
2265 return MS_REG_READ(AR9287, gpio) != 0;
2266 else if (AR_SREV_9285_10_OR_LATER(ah))
2267 return MS_REG_READ(AR9285, gpio) != 0;
2268 else if (AR_SREV_9280_10_OR_LATER(ah))
2269 return MS_REG_READ(AR928X, gpio) != 0;
2271 return MS_REG_READ(AR, gpio) != 0;
2273 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2275 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2280 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2282 gpio_shift = 2 * gpio;
2286 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2287 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2289 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2291 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2293 if (AR_SREV_9271(ah))
2296 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2299 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2301 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
2303 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
2305 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
2307 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2309 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2311 EXPORT_SYMBOL(ath9k_hw_setantenna);
2313 /*********************/
2314 /* General Operation */
2315 /*********************/
2317 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2319 u32 bits = REG_READ(ah, AR_RX_FILTER);
2320 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2322 if (phybits & AR_PHY_ERR_RADAR)
2323 bits |= ATH9K_RX_FILTER_PHYRADAR;
2324 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2325 bits |= ATH9K_RX_FILTER_PHYERR;
2329 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2331 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2335 REG_WRITE(ah, AR_RX_FILTER, bits);
2338 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2339 phybits |= AR_PHY_ERR_RADAR;
2340 if (bits & ATH9K_RX_FILTER_PHYERR)
2341 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2342 REG_WRITE(ah, AR_PHY_ERR, phybits);
2345 REG_WRITE(ah, AR_RXCFG,
2346 REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
2348 REG_WRITE(ah, AR_RXCFG,
2349 REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
2351 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2353 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2355 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2358 ath9k_hw_init_pll(ah, NULL);
2361 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2363 bool ath9k_hw_disable(struct ath_hw *ah)
2365 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2368 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2371 ath9k_hw_init_pll(ah, NULL);
2374 EXPORT_SYMBOL(ath9k_hw_disable);
2376 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
2378 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2379 struct ath9k_channel *chan = ah->curchan;
2380 struct ieee80211_channel *channel = chan->chan;
2382 regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
2384 ah->eep_ops->set_txpower(ah, chan,
2385 ath9k_regd_get_ctl(regulatory, chan),
2386 channel->max_antenna_gain * 2,
2387 channel->max_power * 2,
2388 min((u32) MAX_RATE_POWER,
2389 (u32) regulatory->power_limit));
2391 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2393 void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac)
2395 memcpy(ath9k_hw_common(ah)->macaddr, mac, ETH_ALEN);
2397 EXPORT_SYMBOL(ath9k_hw_setmac);
2399 void ath9k_hw_setopmode(struct ath_hw *ah)
2401 ath9k_hw_set_operating_mode(ah, ah->opmode);
2403 EXPORT_SYMBOL(ath9k_hw_setopmode);
2405 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2407 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2408 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2410 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2412 void ath9k_hw_write_associd(struct ath_hw *ah)
2414 struct ath_common *common = ath9k_hw_common(ah);
2416 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2417 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2418 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2420 EXPORT_SYMBOL(ath9k_hw_write_associd);
2422 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2426 tsf = REG_READ(ah, AR_TSF_U32);
2427 tsf = (tsf << 32) | REG_READ(ah, AR_TSF_L32);
2431 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2433 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2435 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2436 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2438 EXPORT_SYMBOL(ath9k_hw_settsf64);
2440 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2442 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2443 AH_TSF_WRITE_TIMEOUT))
2444 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
2445 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2447 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2449 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2451 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
2454 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2456 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2458 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2461 * Extend 15-bit time stamp from rx descriptor to
2462 * a full 64-bit TSF using the current h/w TSF.
2464 u64 ath9k_hw_extend_tsf(struct ath_hw *ah, u32 rstamp)
2468 tsf = ath9k_hw_gettsf64(ah);
2469 if ((tsf & 0x7fff) < rstamp)
2471 return (tsf & ~0x7fff) | rstamp;
2473 EXPORT_SYMBOL(ath9k_hw_extend_tsf);
2475 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2477 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2480 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2481 macmode = AR_2040_JOINED_RX_CLEAR;
2485 REG_WRITE(ah, AR_2040_MODE, macmode);
2488 /* HW Generic timers configuration */
2490 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2492 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2493 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2494 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2495 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2496 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2497 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2498 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2499 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2500 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2501 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2502 AR_NDP2_TIMER_MODE, 0x0002},
2503 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2504 AR_NDP2_TIMER_MODE, 0x0004},
2505 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2506 AR_NDP2_TIMER_MODE, 0x0008},
2507 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2508 AR_NDP2_TIMER_MODE, 0x0010},
2509 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2510 AR_NDP2_TIMER_MODE, 0x0020},
2511 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2512 AR_NDP2_TIMER_MODE, 0x0040},
2513 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2514 AR_NDP2_TIMER_MODE, 0x0080}
2517 /* HW generic timer primitives */
2519 /* compute and clear index of rightmost 1 */
2520 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2530 return timer_table->gen_timer_index[b];
2533 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2535 return REG_READ(ah, AR_TSF_L32);
2537 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2539 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2540 void (*trigger)(void *),
2541 void (*overflow)(void *),
2545 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2546 struct ath_gen_timer *timer;
2548 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2550 if (timer == NULL) {
2551 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2552 "Failed to allocate memory"
2553 "for hw timer[%d]\n", timer_index);
2557 /* allocate a hardware generic timer slot */
2558 timer_table->timers[timer_index] = timer;
2559 timer->index = timer_index;
2560 timer->trigger = trigger;
2561 timer->overflow = overflow;
2566 EXPORT_SYMBOL(ath_gen_timer_alloc);
2568 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2569 struct ath_gen_timer *timer,
2573 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2576 BUG_ON(!timer_period);
2578 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2580 tsf = ath9k_hw_gettsf32(ah);
2582 ath_print(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
2583 "curent tsf %x period %x"
2584 "timer_next %x\n", tsf, timer_period, timer_next);
2587 * Pull timer_next forward if the current TSF already passed it
2588 * because of software latency
2590 if (timer_next < tsf)
2591 timer_next = tsf + timer_period;
2594 * Program generic timer registers
2596 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2598 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2600 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2601 gen_tmr_configuration[timer->index].mode_mask);
2603 /* Enable both trigger and thresh interrupt masks */
2604 REG_SET_BIT(ah, AR_IMR_S5,
2605 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2606 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2608 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2610 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2612 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2614 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2615 (timer->index >= ATH_MAX_GEN_TIMER)) {
2619 /* Clear generic timer enable bits. */
2620 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2621 gen_tmr_configuration[timer->index].mode_mask);
2623 /* Disable both trigger and thresh interrupt masks */
2624 REG_CLR_BIT(ah, AR_IMR_S5,
2625 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2626 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2628 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
2630 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
2632 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2634 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2636 /* free the hardware generic timer slot */
2637 timer_table->timers[timer->index] = NULL;
2640 EXPORT_SYMBOL(ath_gen_timer_free);
2643 * Generic Timer Interrupts handling
2645 void ath_gen_timer_isr(struct ath_hw *ah)
2647 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2648 struct ath_gen_timer *timer;
2649 struct ath_common *common = ath9k_hw_common(ah);
2650 u32 trigger_mask, thresh_mask, index;
2652 /* get hardware generic timer interrupt status */
2653 trigger_mask = ah->intr_gen_timer_trigger;
2654 thresh_mask = ah->intr_gen_timer_thresh;
2655 trigger_mask &= timer_table->timer_mask.val;
2656 thresh_mask &= timer_table->timer_mask.val;
2658 trigger_mask &= ~thresh_mask;
2660 while (thresh_mask) {
2661 index = rightmost_index(timer_table, &thresh_mask);
2662 timer = timer_table->timers[index];
2664 ath_print(common, ATH_DBG_HWTIMER,
2665 "TSF overflow for Gen timer %d\n", index);
2666 timer->overflow(timer->arg);
2669 while (trigger_mask) {
2670 index = rightmost_index(timer_table, &trigger_mask);
2671 timer = timer_table->timers[index];
2673 ath_print(common, ATH_DBG_HWTIMER,
2674 "Gen timer[%d] trigger\n", index);
2675 timer->trigger(timer->arg);
2678 EXPORT_SYMBOL(ath_gen_timer_isr);
2684 void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2686 ah->htc_reset_init = true;
2688 EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2693 } ath_mac_bb_names[] = {
2694 /* Devices with external radios */
2695 { AR_SREV_VERSION_5416_PCI, "5416" },
2696 { AR_SREV_VERSION_5416_PCIE, "5418" },
2697 { AR_SREV_VERSION_9100, "9100" },
2698 { AR_SREV_VERSION_9160, "9160" },
2699 /* Single-chip solutions */
2700 { AR_SREV_VERSION_9280, "9280" },
2701 { AR_SREV_VERSION_9285, "9285" },
2702 { AR_SREV_VERSION_9287, "9287" },
2703 { AR_SREV_VERSION_9271, "9271" },
2704 { AR_SREV_VERSION_9300, "9300" },
2707 /* For devices with external radios */
2711 } ath_rf_names[] = {
2713 { AR_RAD5133_SREV_MAJOR, "5133" },
2714 { AR_RAD5122_SREV_MAJOR, "5122" },
2715 { AR_RAD2133_SREV_MAJOR, "2133" },
2716 { AR_RAD2122_SREV_MAJOR, "2122" }
2720 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2722 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2726 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
2727 if (ath_mac_bb_names[i].version == mac_bb_version) {
2728 return ath_mac_bb_names[i].name;
2736 * Return the RF name. "????" is returned if the RF is unknown.
2737 * Used for devices with external radios.
2739 static const char *ath9k_hw_rf_name(u16 rf_version)
2743 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
2744 if (ath_rf_names[i].version == rf_version) {
2745 return ath_rf_names[i].name;
2752 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
2756 /* chipsets >= AR9280 are single-chip */
2757 if (AR_SREV_9280_10_OR_LATER(ah)) {
2758 used = snprintf(hw_name, len,
2759 "Atheros AR%s Rev:%x",
2760 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2761 ah->hw_version.macRev);
2764 used = snprintf(hw_name, len,
2765 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2766 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2767 ah->hw_version.macRev,
2768 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
2769 AR_RADIO_SREV_MAJOR)),
2770 ah->hw_version.phyRev);
2773 hw_name[used] = '\0';
2775 EXPORT_SYMBOL(ath9k_hw_name);