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)
842 * set AHB_MODE not to do cacheline prefetches
844 regval = REG_READ(ah, AR_AHB_MODE);
845 REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
848 * let mac dma reads be in 128 byte chunks
850 regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
851 REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
854 * Restore TX Trigger Level to its pre-reset value.
855 * The initial value depends on whether aggregation is enabled, and is
856 * adjusted whenever underruns are detected.
858 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
861 * let mac dma writes be in 128 byte chunks
863 regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
864 REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
867 * Setup receive FIFO threshold to hold off TX activities
869 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
872 * reduce the number of usable entries in PCU TXBUF to avoid
873 * wrap around issues.
875 if (AR_SREV_9285(ah)) {
876 /* For AR9285 the number of Fifos are reduced to half.
877 * So set the usable tx buf size also to half to
878 * avoid data/delimiter underruns
880 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
881 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
882 } else if (!AR_SREV_9271(ah)) {
883 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
884 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
888 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
892 val = REG_READ(ah, AR_STA_ID1);
893 val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
895 case NL80211_IFTYPE_AP:
896 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
897 | AR_STA_ID1_KSRCH_MODE);
898 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
900 case NL80211_IFTYPE_ADHOC:
901 case NL80211_IFTYPE_MESH_POINT:
902 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
903 | AR_STA_ID1_KSRCH_MODE);
904 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
906 case NL80211_IFTYPE_STATION:
907 case NL80211_IFTYPE_MONITOR:
908 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
913 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
914 u32 *coef_mantissa, u32 *coef_exponent)
916 u32 coef_exp, coef_man;
918 for (coef_exp = 31; coef_exp > 0; coef_exp--)
919 if ((coef_scaled >> coef_exp) & 0x1)
922 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
924 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
926 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
927 *coef_exponent = coef_exp - 16;
930 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
935 if (AR_SREV_9100(ah)) {
936 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
937 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
938 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
939 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
940 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
943 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
944 AR_RTC_FORCE_WAKE_ON_INT);
946 if (AR_SREV_9100(ah)) {
947 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
948 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
950 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
952 (AR_INTR_SYNC_LOCAL_TIMEOUT |
953 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
955 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
958 if (!AR_SREV_9300_20_OR_LATER(ah))
960 REG_WRITE(ah, AR_RC, val);
962 } else if (!AR_SREV_9300_20_OR_LATER(ah))
963 REG_WRITE(ah, AR_RC, AR_RC_AHB);
965 rst_flags = AR_RTC_RC_MAC_WARM;
966 if (type == ATH9K_RESET_COLD)
967 rst_flags |= AR_RTC_RC_MAC_COLD;
970 REG_WRITE(ah, AR_RTC_RC, rst_flags);
973 REG_WRITE(ah, AR_RTC_RC, 0);
974 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
975 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
976 "RTC stuck in MAC reset\n");
980 if (!AR_SREV_9100(ah))
981 REG_WRITE(ah, AR_RC, 0);
983 if (AR_SREV_9100(ah))
989 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
991 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
992 AR_RTC_FORCE_WAKE_ON_INT);
994 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
995 REG_WRITE(ah, AR_RC, AR_RC_AHB);
997 REG_WRITE(ah, AR_RTC_RESET, 0);
999 if (!AR_SREV_9300_20_OR_LATER(ah))
1002 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1003 REG_WRITE(ah, AR_RC, 0);
1005 REG_WRITE(ah, AR_RTC_RESET, 1);
1007 if (!ath9k_hw_wait(ah,
1012 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1013 "RTC not waking up\n");
1017 ath9k_hw_read_revisions(ah);
1019 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1022 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1024 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1025 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1028 case ATH9K_RESET_POWER_ON:
1029 return ath9k_hw_set_reset_power_on(ah);
1030 case ATH9K_RESET_WARM:
1031 case ATH9K_RESET_COLD:
1032 return ath9k_hw_set_reset(ah, type);
1038 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1039 struct ath9k_channel *chan)
1041 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1042 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1044 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1047 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1050 ah->chip_fullsleep = false;
1051 ath9k_hw_init_pll(ah, chan);
1052 ath9k_hw_set_rfmode(ah, chan);
1057 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1058 struct ath9k_channel *chan)
1060 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1061 struct ath_common *common = ath9k_hw_common(ah);
1062 struct ieee80211_channel *channel = chan->chan;
1066 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1067 if (ath9k_hw_numtxpending(ah, qnum)) {
1068 ath_print(common, ATH_DBG_QUEUE,
1069 "Transmit frames pending on "
1070 "queue %d\n", qnum);
1075 if (!ath9k_hw_rfbus_req(ah)) {
1076 ath_print(common, ATH_DBG_FATAL,
1077 "Could not kill baseband RX\n");
1081 ath9k_hw_set_channel_regs(ah, chan);
1083 r = ath9k_hw_rf_set_freq(ah, chan);
1085 ath_print(common, ATH_DBG_FATAL,
1086 "Failed to set channel\n");
1090 ah->eep_ops->set_txpower(ah, chan,
1091 ath9k_regd_get_ctl(regulatory, chan),
1092 channel->max_antenna_gain * 2,
1093 channel->max_power * 2,
1094 min((u32) MAX_RATE_POWER,
1095 (u32) regulatory->power_limit));
1097 ath9k_hw_rfbus_done(ah);
1099 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1100 ath9k_hw_set_delta_slope(ah, chan);
1102 ath9k_hw_spur_mitigate_freq(ah, chan);
1104 if (!chan->oneTimeCalsDone)
1105 chan->oneTimeCalsDone = true;
1110 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1111 bool bChannelChange)
1113 struct ath_common *common = ath9k_hw_common(ah);
1115 struct ath9k_channel *curchan = ah->curchan;
1121 ah->txchainmask = common->tx_chainmask;
1122 ah->rxchainmask = common->rx_chainmask;
1124 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1127 if (curchan && !ah->chip_fullsleep)
1128 ath9k_hw_getnf(ah, curchan);
1130 if (bChannelChange &&
1131 (ah->chip_fullsleep != true) &&
1132 (ah->curchan != NULL) &&
1133 (chan->channel != ah->curchan->channel) &&
1134 ((chan->channelFlags & CHANNEL_ALL) ==
1135 (ah->curchan->channelFlags & CHANNEL_ALL)) &&
1136 !(AR_SREV_9280(ah) || IS_CHAN_A_5MHZ_SPACED(chan) ||
1137 IS_CHAN_A_5MHZ_SPACED(ah->curchan))) {
1139 if (ath9k_hw_channel_change(ah, chan)) {
1140 ath9k_hw_loadnf(ah, ah->curchan);
1141 ath9k_hw_start_nfcal(ah);
1146 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1147 if (saveDefAntenna == 0)
1150 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1152 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1153 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1154 tsf = ath9k_hw_gettsf64(ah);
1156 saveLedState = REG_READ(ah, AR_CFG_LED) &
1157 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1158 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1160 ath9k_hw_mark_phy_inactive(ah);
1162 /* Only required on the first reset */
1163 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1165 AR9271_RESET_POWER_DOWN_CONTROL,
1166 AR9271_RADIO_RF_RST);
1170 if (!ath9k_hw_chip_reset(ah, chan)) {
1171 ath_print(common, ATH_DBG_FATAL, "Chip reset failed\n");
1175 /* Only required on the first reset */
1176 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1177 ah->htc_reset_init = false;
1179 AR9271_RESET_POWER_DOWN_CONTROL,
1180 AR9271_GATE_MAC_CTL);
1185 if (tsf && AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1186 ath9k_hw_settsf64(ah, tsf);
1188 if (AR_SREV_9280_10_OR_LATER(ah))
1189 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1191 r = ath9k_hw_process_ini(ah, chan);
1195 /* Setup MFP options for CCMP */
1196 if (AR_SREV_9280_20_OR_LATER(ah)) {
1197 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1198 * frames when constructing CCMP AAD. */
1199 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1201 ah->sw_mgmt_crypto = false;
1202 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1203 /* Disable hardware crypto for management frames */
1204 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1205 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1206 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1207 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1208 ah->sw_mgmt_crypto = true;
1210 ah->sw_mgmt_crypto = true;
1212 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1213 ath9k_hw_set_delta_slope(ah, chan);
1215 ath9k_hw_spur_mitigate_freq(ah, chan);
1216 ah->eep_ops->set_board_values(ah, chan);
1218 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1219 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
1221 | AR_STA_ID1_RTS_USE_DEF
1223 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1224 | ah->sta_id1_defaults);
1225 ath9k_hw_set_operating_mode(ah, ah->opmode);
1227 ath_hw_setbssidmask(common);
1229 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1231 ath9k_hw_write_associd(ah);
1233 REG_WRITE(ah, AR_ISR, ~0);
1235 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1237 r = ath9k_hw_rf_set_freq(ah, chan);
1241 for (i = 0; i < AR_NUM_DCU; i++)
1242 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1245 for (i = 0; i < ah->caps.total_queues; i++)
1246 ath9k_hw_resettxqueue(ah, i);
1248 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1249 ath9k_hw_init_qos(ah);
1251 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1252 ath9k_enable_rfkill(ah);
1254 ath9k_hw_init_global_settings(ah);
1256 if (AR_SREV_9287_12_OR_LATER(ah)) {
1257 REG_WRITE(ah, AR_D_GBL_IFS_SIFS,
1258 AR_D_GBL_IFS_SIFS_ASYNC_FIFO_DUR);
1259 REG_WRITE(ah, AR_D_GBL_IFS_SLOT,
1260 AR_D_GBL_IFS_SLOT_ASYNC_FIFO_DUR);
1261 REG_WRITE(ah, AR_D_GBL_IFS_EIFS,
1262 AR_D_GBL_IFS_EIFS_ASYNC_FIFO_DUR);
1264 REG_WRITE(ah, AR_TIME_OUT, AR_TIME_OUT_ACK_CTS_ASYNC_FIFO_DUR);
1265 REG_WRITE(ah, AR_USEC, AR_USEC_ASYNC_FIFO_DUR);
1267 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
1268 AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
1269 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
1270 AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
1272 if (AR_SREV_9287_12_OR_LATER(ah)) {
1273 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1274 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
1277 REG_WRITE(ah, AR_STA_ID1,
1278 REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
1280 ath9k_hw_set_dma(ah);
1282 REG_WRITE(ah, AR_OBS, 8);
1284 if (ah->config.rx_intr_mitigation) {
1285 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
1286 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
1289 if (ah->config.tx_intr_mitigation) {
1290 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1291 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1294 ath9k_hw_init_bb(ah, chan);
1296 if (!ath9k_hw_init_cal(ah, chan))
1299 ath9k_hw_restore_chainmask(ah);
1300 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1303 * For big endian systems turn on swapping for descriptors
1305 if (AR_SREV_9100(ah)) {
1307 mask = REG_READ(ah, AR_CFG);
1308 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1309 ath_print(common, ATH_DBG_RESET,
1310 "CFG Byte Swap Set 0x%x\n", mask);
1313 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1314 REG_WRITE(ah, AR_CFG, mask);
1315 ath_print(common, ATH_DBG_RESET,
1316 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
1319 /* Configure AR9271 target WLAN */
1320 if (AR_SREV_9271(ah))
1321 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1324 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1328 if (ah->btcoex_hw.enabled)
1329 ath9k_hw_btcoex_enable(ah);
1333 EXPORT_SYMBOL(ath9k_hw_reset);
1335 /************************/
1336 /* Key Cache Management */
1337 /************************/
1339 bool ath9k_hw_keyreset(struct ath_hw *ah, u16 entry)
1343 if (entry >= ah->caps.keycache_size) {
1344 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1345 "keychache entry %u out of range\n", entry);
1349 keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
1351 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
1352 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
1353 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
1354 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
1355 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
1356 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
1357 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
1358 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
1360 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1361 u16 micentry = entry + 64;
1363 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
1364 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1365 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
1366 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1372 EXPORT_SYMBOL(ath9k_hw_keyreset);
1374 bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
1378 if (entry >= ah->caps.keycache_size) {
1379 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1380 "keychache entry %u out of range\n", entry);
1385 macHi = (mac[5] << 8) | mac[4];
1386 macLo = (mac[3] << 24) |
1391 macLo |= (macHi & 1) << 31;
1396 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
1397 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | AR_KEYTABLE_VALID);
1401 EXPORT_SYMBOL(ath9k_hw_keysetmac);
1403 bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
1404 const struct ath9k_keyval *k,
1407 const struct ath9k_hw_capabilities *pCap = &ah->caps;
1408 struct ath_common *common = ath9k_hw_common(ah);
1409 u32 key0, key1, key2, key3, key4;
1412 if (entry >= pCap->keycache_size) {
1413 ath_print(common, ATH_DBG_FATAL,
1414 "keycache entry %u out of range\n", entry);
1418 switch (k->kv_type) {
1419 case ATH9K_CIPHER_AES_OCB:
1420 keyType = AR_KEYTABLE_TYPE_AES;
1422 case ATH9K_CIPHER_AES_CCM:
1423 if (!(pCap->hw_caps & ATH9K_HW_CAP_CIPHER_AESCCM)) {
1424 ath_print(common, ATH_DBG_ANY,
1425 "AES-CCM not supported by mac rev 0x%x\n",
1426 ah->hw_version.macRev);
1429 keyType = AR_KEYTABLE_TYPE_CCM;
1431 case ATH9K_CIPHER_TKIP:
1432 keyType = AR_KEYTABLE_TYPE_TKIP;
1433 if (ATH9K_IS_MIC_ENABLED(ah)
1434 && entry + 64 >= pCap->keycache_size) {
1435 ath_print(common, ATH_DBG_ANY,
1436 "entry %u inappropriate for TKIP\n", entry);
1440 case ATH9K_CIPHER_WEP:
1441 if (k->kv_len < WLAN_KEY_LEN_WEP40) {
1442 ath_print(common, ATH_DBG_ANY,
1443 "WEP key length %u too small\n", k->kv_len);
1446 if (k->kv_len <= WLAN_KEY_LEN_WEP40)
1447 keyType = AR_KEYTABLE_TYPE_40;
1448 else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1449 keyType = AR_KEYTABLE_TYPE_104;
1451 keyType = AR_KEYTABLE_TYPE_128;
1453 case ATH9K_CIPHER_CLR:
1454 keyType = AR_KEYTABLE_TYPE_CLR;
1457 ath_print(common, ATH_DBG_FATAL,
1458 "cipher %u not supported\n", k->kv_type);
1462 key0 = get_unaligned_le32(k->kv_val + 0);
1463 key1 = get_unaligned_le16(k->kv_val + 4);
1464 key2 = get_unaligned_le32(k->kv_val + 6);
1465 key3 = get_unaligned_le16(k->kv_val + 10);
1466 key4 = get_unaligned_le32(k->kv_val + 12);
1467 if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1471 * Note: Key cache registers access special memory area that requires
1472 * two 32-bit writes to actually update the values in the internal
1473 * memory. Consequently, the exact order and pairs used here must be
1477 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1478 u16 micentry = entry + 64;
1481 * Write inverted key[47:0] first to avoid Michael MIC errors
1482 * on frames that could be sent or received at the same time.
1483 * The correct key will be written in the end once everything
1486 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), ~key0);
1487 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), ~key1);
1489 /* Write key[95:48] */
1490 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1491 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1493 /* Write key[127:96] and key type */
1494 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1495 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1497 /* Write MAC address for the entry */
1498 (void) ath9k_hw_keysetmac(ah, entry, mac);
1500 if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) {
1502 * TKIP uses two key cache entries:
1503 * Michael MIC TX/RX keys in the same key cache entry
1504 * (idx = main index + 64):
1505 * key0 [31:0] = RX key [31:0]
1506 * key1 [15:0] = TX key [31:16]
1507 * key1 [31:16] = reserved
1508 * key2 [31:0] = RX key [63:32]
1509 * key3 [15:0] = TX key [15:0]
1510 * key3 [31:16] = reserved
1511 * key4 [31:0] = TX key [63:32]
1513 u32 mic0, mic1, mic2, mic3, mic4;
1515 mic0 = get_unaligned_le32(k->kv_mic + 0);
1516 mic2 = get_unaligned_le32(k->kv_mic + 4);
1517 mic1 = get_unaligned_le16(k->kv_txmic + 2) & 0xffff;
1518 mic3 = get_unaligned_le16(k->kv_txmic + 0) & 0xffff;
1519 mic4 = get_unaligned_le32(k->kv_txmic + 4);
1521 /* Write RX[31:0] and TX[31:16] */
1522 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1523 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), mic1);
1525 /* Write RX[63:32] and TX[15:0] */
1526 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1527 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), mic3);
1529 /* Write TX[63:32] and keyType(reserved) */
1530 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), mic4);
1531 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1532 AR_KEYTABLE_TYPE_CLR);
1536 * TKIP uses four key cache entries (two for group
1538 * Michael MIC TX/RX keys are in different key cache
1539 * entries (idx = main index + 64 for TX and
1540 * main index + 32 + 96 for RX):
1541 * key0 [31:0] = TX/RX MIC key [31:0]
1542 * key1 [31:0] = reserved
1543 * key2 [31:0] = TX/RX MIC key [63:32]
1544 * key3 [31:0] = reserved
1545 * key4 [31:0] = reserved
1547 * Upper layer code will call this function separately
1548 * for TX and RX keys when these registers offsets are
1553 mic0 = get_unaligned_le32(k->kv_mic + 0);
1554 mic2 = get_unaligned_le32(k->kv_mic + 4);
1556 /* Write MIC key[31:0] */
1557 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1558 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1560 /* Write MIC key[63:32] */
1561 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1562 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1564 /* Write TX[63:32] and keyType(reserved) */
1565 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
1566 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1567 AR_KEYTABLE_TYPE_CLR);
1570 /* MAC address registers are reserved for the MIC entry */
1571 REG_WRITE(ah, AR_KEYTABLE_MAC0(micentry), 0);
1572 REG_WRITE(ah, AR_KEYTABLE_MAC1(micentry), 0);
1575 * Write the correct (un-inverted) key[47:0] last to enable
1576 * TKIP now that all other registers are set with correct
1579 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1580 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1582 /* Write key[47:0] */
1583 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1584 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1586 /* Write key[95:48] */
1587 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1588 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1590 /* Write key[127:96] and key type */
1591 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1592 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1594 /* Write MAC address for the entry */
1595 (void) ath9k_hw_keysetmac(ah, entry, mac);
1600 EXPORT_SYMBOL(ath9k_hw_set_keycache_entry);
1602 bool ath9k_hw_keyisvalid(struct ath_hw *ah, u16 entry)
1604 if (entry < ah->caps.keycache_size) {
1605 u32 val = REG_READ(ah, AR_KEYTABLE_MAC1(entry));
1606 if (val & AR_KEYTABLE_VALID)
1611 EXPORT_SYMBOL(ath9k_hw_keyisvalid);
1613 /******************************/
1614 /* Power Management (Chipset) */
1615 /******************************/
1618 * Notify Power Mgt is disabled in self-generated frames.
1619 * If requested, force chip to sleep.
1621 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
1623 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1626 * Clear the RTC force wake bit to allow the
1627 * mac to go to sleep.
1629 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1630 AR_RTC_FORCE_WAKE_EN);
1631 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1632 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1634 /* Shutdown chip. Active low */
1635 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah))
1636 REG_CLR_BIT(ah, (AR_RTC_RESET),
1642 * Notify Power Management is enabled in self-generating
1643 * frames. If request, set power mode of chip to
1644 * auto/normal. Duration in units of 128us (1/8 TU).
1646 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
1648 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1650 struct ath9k_hw_capabilities *pCap = &ah->caps;
1652 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1653 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1654 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1655 AR_RTC_FORCE_WAKE_ON_INT);
1658 * Clear the RTC force wake bit to allow the
1659 * mac to go to sleep.
1661 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1662 AR_RTC_FORCE_WAKE_EN);
1667 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
1673 if ((REG_READ(ah, AR_RTC_STATUS) &
1674 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1675 if (ath9k_hw_set_reset_reg(ah,
1676 ATH9K_RESET_POWER_ON) != true) {
1679 if (!AR_SREV_9300_20_OR_LATER(ah))
1680 ath9k_hw_init_pll(ah, NULL);
1682 if (AR_SREV_9100(ah))
1683 REG_SET_BIT(ah, AR_RTC_RESET,
1686 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1687 AR_RTC_FORCE_WAKE_EN);
1690 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1691 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1692 if (val == AR_RTC_STATUS_ON)
1695 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1696 AR_RTC_FORCE_WAKE_EN);
1699 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1700 "Failed to wakeup in %uus\n",
1701 POWER_UP_TIME / 20);
1706 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1711 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
1713 struct ath_common *common = ath9k_hw_common(ah);
1714 int status = true, setChip = true;
1715 static const char *modes[] = {
1722 if (ah->power_mode == mode)
1725 ath_print(common, ATH_DBG_RESET, "%s -> %s\n",
1726 modes[ah->power_mode], modes[mode]);
1729 case ATH9K_PM_AWAKE:
1730 status = ath9k_hw_set_power_awake(ah, setChip);
1732 case ATH9K_PM_FULL_SLEEP:
1733 ath9k_set_power_sleep(ah, setChip);
1734 ah->chip_fullsleep = true;
1736 case ATH9K_PM_NETWORK_SLEEP:
1737 ath9k_set_power_network_sleep(ah, setChip);
1740 ath_print(common, ATH_DBG_FATAL,
1741 "Unknown power mode %u\n", mode);
1744 ah->power_mode = mode;
1748 EXPORT_SYMBOL(ath9k_hw_setpower);
1750 /*******************/
1751 /* Beacon Handling */
1752 /*******************/
1754 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
1758 ah->beacon_interval = beacon_period;
1760 switch (ah->opmode) {
1761 case NL80211_IFTYPE_STATION:
1762 case NL80211_IFTYPE_MONITOR:
1763 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1764 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, 0xffff);
1765 REG_WRITE(ah, AR_NEXT_SWBA, 0x7ffff);
1766 flags |= AR_TBTT_TIMER_EN;
1768 case NL80211_IFTYPE_ADHOC:
1769 case NL80211_IFTYPE_MESH_POINT:
1770 REG_SET_BIT(ah, AR_TXCFG,
1771 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
1772 REG_WRITE(ah, AR_NEXT_NDP_TIMER,
1773 TU_TO_USEC(next_beacon +
1774 (ah->atim_window ? ah->
1776 flags |= AR_NDP_TIMER_EN;
1777 case NL80211_IFTYPE_AP:
1778 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1779 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT,
1780 TU_TO_USEC(next_beacon -
1782 dma_beacon_response_time));
1783 REG_WRITE(ah, AR_NEXT_SWBA,
1784 TU_TO_USEC(next_beacon -
1786 sw_beacon_response_time));
1788 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
1791 ath_print(ath9k_hw_common(ah), ATH_DBG_BEACON,
1792 "%s: unsupported opmode: %d\n",
1793 __func__, ah->opmode);
1798 REG_WRITE(ah, AR_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1799 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1800 REG_WRITE(ah, AR_SWBA_PERIOD, TU_TO_USEC(beacon_period));
1801 REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
1803 beacon_period &= ~ATH9K_BEACON_ENA;
1804 if (beacon_period & ATH9K_BEACON_RESET_TSF) {
1805 ath9k_hw_reset_tsf(ah);
1808 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
1810 EXPORT_SYMBOL(ath9k_hw_beaconinit);
1812 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
1813 const struct ath9k_beacon_state *bs)
1815 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
1816 struct ath9k_hw_capabilities *pCap = &ah->caps;
1817 struct ath_common *common = ath9k_hw_common(ah);
1819 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
1821 REG_WRITE(ah, AR_BEACON_PERIOD,
1822 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1823 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
1824 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1826 REG_RMW_FIELD(ah, AR_RSSI_THR,
1827 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
1829 beaconintval = bs->bs_intval & ATH9K_BEACON_PERIOD;
1831 if (bs->bs_sleepduration > beaconintval)
1832 beaconintval = bs->bs_sleepduration;
1834 dtimperiod = bs->bs_dtimperiod;
1835 if (bs->bs_sleepduration > dtimperiod)
1836 dtimperiod = bs->bs_sleepduration;
1838 if (beaconintval == dtimperiod)
1839 nextTbtt = bs->bs_nextdtim;
1841 nextTbtt = bs->bs_nexttbtt;
1843 ath_print(common, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
1844 ath_print(common, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
1845 ath_print(common, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
1846 ath_print(common, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
1848 REG_WRITE(ah, AR_NEXT_DTIM,
1849 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
1850 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
1852 REG_WRITE(ah, AR_SLEEP1,
1853 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
1854 | AR_SLEEP1_ASSUME_DTIM);
1856 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
1857 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
1859 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
1861 REG_WRITE(ah, AR_SLEEP2,
1862 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
1864 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
1865 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
1867 REG_SET_BIT(ah, AR_TIMER_MODE,
1868 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
1871 /* TSF Out of Range Threshold */
1872 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
1874 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
1876 /*******************/
1877 /* HW Capabilities */
1878 /*******************/
1880 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
1882 struct ath9k_hw_capabilities *pCap = &ah->caps;
1883 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1884 struct ath_common *common = ath9k_hw_common(ah);
1885 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
1887 u16 capField = 0, eeval;
1889 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
1890 regulatory->current_rd = eeval;
1892 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_1);
1893 if (AR_SREV_9285_10_OR_LATER(ah))
1894 eeval |= AR9285_RDEXT_DEFAULT;
1895 regulatory->current_rd_ext = eeval;
1897 capField = ah->eep_ops->get_eeprom(ah, EEP_OP_CAP);
1899 if (ah->opmode != NL80211_IFTYPE_AP &&
1900 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
1901 if (regulatory->current_rd == 0x64 ||
1902 regulatory->current_rd == 0x65)
1903 regulatory->current_rd += 5;
1904 else if (regulatory->current_rd == 0x41)
1905 regulatory->current_rd = 0x43;
1906 ath_print(common, ATH_DBG_REGULATORY,
1907 "regdomain mapped to 0x%x\n", regulatory->current_rd);
1910 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
1911 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
1912 ath_print(common, ATH_DBG_FATAL,
1913 "no band has been marked as supported in EEPROM.\n");
1917 bitmap_zero(pCap->wireless_modes, ATH9K_MODE_MAX);
1919 if (eeval & AR5416_OPFLAGS_11A) {
1920 set_bit(ATH9K_MODE_11A, pCap->wireless_modes);
1921 if (ah->config.ht_enable) {
1922 if (!(eeval & AR5416_OPFLAGS_N_5G_HT20))
1923 set_bit(ATH9K_MODE_11NA_HT20,
1924 pCap->wireless_modes);
1925 if (!(eeval & AR5416_OPFLAGS_N_5G_HT40)) {
1926 set_bit(ATH9K_MODE_11NA_HT40PLUS,
1927 pCap->wireless_modes);
1928 set_bit(ATH9K_MODE_11NA_HT40MINUS,
1929 pCap->wireless_modes);
1934 if (eeval & AR5416_OPFLAGS_11G) {
1935 set_bit(ATH9K_MODE_11G, pCap->wireless_modes);
1936 if (ah->config.ht_enable) {
1937 if (!(eeval & AR5416_OPFLAGS_N_2G_HT20))
1938 set_bit(ATH9K_MODE_11NG_HT20,
1939 pCap->wireless_modes);
1940 if (!(eeval & AR5416_OPFLAGS_N_2G_HT40)) {
1941 set_bit(ATH9K_MODE_11NG_HT40PLUS,
1942 pCap->wireless_modes);
1943 set_bit(ATH9K_MODE_11NG_HT40MINUS,
1944 pCap->wireless_modes);
1949 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
1951 * For AR9271 we will temporarilly uses the rx chainmax as read from
1954 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
1955 !(eeval & AR5416_OPFLAGS_11A) &&
1956 !(AR_SREV_9271(ah)))
1957 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
1958 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
1960 /* Use rx_chainmask from EEPROM. */
1961 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
1963 if (!(AR_SREV_9280(ah) && (ah->hw_version.macRev == 0)))
1964 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
1966 pCap->low_2ghz_chan = 2312;
1967 pCap->high_2ghz_chan = 2732;
1969 pCap->low_5ghz_chan = 4920;
1970 pCap->high_5ghz_chan = 6100;
1972 pCap->hw_caps &= ~ATH9K_HW_CAP_CIPHER_CKIP;
1973 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_TKIP;
1974 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_AESCCM;
1976 pCap->hw_caps &= ~ATH9K_HW_CAP_MIC_CKIP;
1977 pCap->hw_caps |= ATH9K_HW_CAP_MIC_TKIP;
1978 pCap->hw_caps |= ATH9K_HW_CAP_MIC_AESCCM;
1980 if (ah->config.ht_enable)
1981 pCap->hw_caps |= ATH9K_HW_CAP_HT;
1983 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
1985 pCap->hw_caps |= ATH9K_HW_CAP_GTT;
1986 pCap->hw_caps |= ATH9K_HW_CAP_VEOL;
1987 pCap->hw_caps |= ATH9K_HW_CAP_BSSIDMASK;
1988 pCap->hw_caps &= ~ATH9K_HW_CAP_MCAST_KEYSEARCH;
1990 if (capField & AR_EEPROM_EEPCAP_MAXQCU)
1991 pCap->total_queues =
1992 MS(capField, AR_EEPROM_EEPCAP_MAXQCU);
1994 pCap->total_queues = ATH9K_NUM_TX_QUEUES;
1996 if (capField & AR_EEPROM_EEPCAP_KC_ENTRIES)
1997 pCap->keycache_size =
1998 1 << MS(capField, AR_EEPROM_EEPCAP_KC_ENTRIES);
2000 pCap->keycache_size = AR_KEYTABLE_SIZE;
2002 pCap->hw_caps |= ATH9K_HW_CAP_FASTCC;
2004 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
2005 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD >> 1;
2007 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD;
2009 if (AR_SREV_9271(ah))
2010 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2011 else if (AR_SREV_9285_10_OR_LATER(ah))
2012 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2013 else if (AR_SREV_9280_10_OR_LATER(ah))
2014 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2016 pCap->num_gpio_pins = AR_NUM_GPIO;
2018 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
2019 pCap->hw_caps |= ATH9K_HW_CAP_CST;
2020 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2022 pCap->rts_aggr_limit = (8 * 1024);
2025 pCap->hw_caps |= ATH9K_HW_CAP_ENHANCEDPM;
2027 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
2028 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2029 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2031 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2032 ah->rfkill_polarity =
2033 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2035 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2038 if (AR_SREV_9271(ah))
2039 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2041 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2043 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2044 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2046 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2048 if (regulatory->current_rd_ext & (1 << REG_EXT_JAPAN_MIDBAND)) {
2050 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2051 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN |
2052 AR_EEPROM_EEREGCAP_EN_KK_U2 |
2053 AR_EEPROM_EEREGCAP_EN_KK_MIDBAND;
2056 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2057 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN;
2060 /* Advertise midband for AR5416 with FCC midband set in eeprom */
2061 if (regulatory->current_rd_ext & (1 << REG_EXT_FCC_MIDBAND) &&
2063 pCap->reg_cap |= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND;
2065 pCap->num_antcfg_5ghz =
2066 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_5GHZ);
2067 pCap->num_antcfg_2ghz =
2068 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
2070 if (AR_SREV_9280_10_OR_LATER(ah) &&
2071 ath9k_hw_btcoex_supported(ah)) {
2072 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
2073 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
2075 if (AR_SREV_9285(ah)) {
2076 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
2077 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
2079 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
2082 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
2085 if (AR_SREV_9300_20_OR_LATER(ah)) {
2086 pCap->hw_caps |= ATH9K_HW_CAP_EDMA;
2087 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2088 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2089 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2090 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2092 pCap->tx_desc_len = sizeof(struct ath_desc);
2095 if (AR_SREV_9300_20_OR_LATER(ah))
2096 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2101 bool ath9k_hw_getcapability(struct ath_hw *ah, enum ath9k_capability_type type,
2102 u32 capability, u32 *result)
2104 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2106 case ATH9K_CAP_CIPHER:
2107 switch (capability) {
2108 case ATH9K_CIPHER_AES_CCM:
2109 case ATH9K_CIPHER_AES_OCB:
2110 case ATH9K_CIPHER_TKIP:
2111 case ATH9K_CIPHER_WEP:
2112 case ATH9K_CIPHER_MIC:
2113 case ATH9K_CIPHER_CLR:
2118 case ATH9K_CAP_TKIP_MIC:
2119 switch (capability) {
2123 return (ah->sta_id1_defaults &
2124 AR_STA_ID1_CRPT_MIC_ENABLE) ? true :
2127 case ATH9K_CAP_TKIP_SPLIT:
2128 return (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) ?
2130 case ATH9K_CAP_MCAST_KEYSRCH:
2131 switch (capability) {
2135 if (REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_ADHOC) {
2138 return (ah->sta_id1_defaults &
2139 AR_STA_ID1_MCAST_KSRCH) ? true :
2144 case ATH9K_CAP_TXPOW:
2145 switch (capability) {
2149 *result = regulatory->power_limit;
2152 *result = regulatory->max_power_level;
2155 *result = regulatory->tp_scale;
2160 return (AR_SREV_9280_20_OR_LATER(ah) &&
2161 (ah->eep_ops->get_eeprom(ah, EEP_RC_CHAIN_MASK) == 1))
2167 EXPORT_SYMBOL(ath9k_hw_getcapability);
2169 bool ath9k_hw_setcapability(struct ath_hw *ah, enum ath9k_capability_type type,
2170 u32 capability, u32 setting, int *status)
2173 case ATH9K_CAP_TKIP_MIC:
2175 ah->sta_id1_defaults |=
2176 AR_STA_ID1_CRPT_MIC_ENABLE;
2178 ah->sta_id1_defaults &=
2179 ~AR_STA_ID1_CRPT_MIC_ENABLE;
2181 case ATH9K_CAP_MCAST_KEYSRCH:
2183 ah->sta_id1_defaults |= AR_STA_ID1_MCAST_KSRCH;
2185 ah->sta_id1_defaults &= ~AR_STA_ID1_MCAST_KSRCH;
2191 EXPORT_SYMBOL(ath9k_hw_setcapability);
2193 /****************************/
2194 /* GPIO / RFKILL / Antennae */
2195 /****************************/
2197 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2201 u32 gpio_shift, tmp;
2204 addr = AR_GPIO_OUTPUT_MUX3;
2206 addr = AR_GPIO_OUTPUT_MUX2;
2208 addr = AR_GPIO_OUTPUT_MUX1;
2210 gpio_shift = (gpio % 6) * 5;
2212 if (AR_SREV_9280_20_OR_LATER(ah)
2213 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2214 REG_RMW(ah, addr, (type << gpio_shift),
2215 (0x1f << gpio_shift));
2217 tmp = REG_READ(ah, addr);
2218 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2219 tmp &= ~(0x1f << gpio_shift);
2220 tmp |= (type << gpio_shift);
2221 REG_WRITE(ah, addr, tmp);
2225 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2229 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2231 gpio_shift = gpio << 1;
2235 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2236 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2238 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2240 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2242 #define MS_REG_READ(x, y) \
2243 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2245 if (gpio >= ah->caps.num_gpio_pins)
2248 if (AR_SREV_9300_20_OR_LATER(ah))
2249 return MS_REG_READ(AR9300, gpio) != 0;
2250 else if (AR_SREV_9271(ah))
2251 return MS_REG_READ(AR9271, gpio) != 0;
2252 else if (AR_SREV_9287_10_OR_LATER(ah))
2253 return MS_REG_READ(AR9287, gpio) != 0;
2254 else if (AR_SREV_9285_10_OR_LATER(ah))
2255 return MS_REG_READ(AR9285, gpio) != 0;
2256 else if (AR_SREV_9280_10_OR_LATER(ah))
2257 return MS_REG_READ(AR928X, gpio) != 0;
2259 return MS_REG_READ(AR, gpio) != 0;
2261 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2263 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2268 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2270 gpio_shift = 2 * gpio;
2274 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2275 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2277 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2279 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2281 if (AR_SREV_9271(ah))
2284 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2287 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2289 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
2291 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
2293 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
2295 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2297 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2299 EXPORT_SYMBOL(ath9k_hw_setantenna);
2301 /*********************/
2302 /* General Operation */
2303 /*********************/
2305 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2307 u32 bits = REG_READ(ah, AR_RX_FILTER);
2308 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2310 if (phybits & AR_PHY_ERR_RADAR)
2311 bits |= ATH9K_RX_FILTER_PHYRADAR;
2312 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2313 bits |= ATH9K_RX_FILTER_PHYERR;
2317 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2319 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2323 REG_WRITE(ah, AR_RX_FILTER, bits);
2326 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2327 phybits |= AR_PHY_ERR_RADAR;
2328 if (bits & ATH9K_RX_FILTER_PHYERR)
2329 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2330 REG_WRITE(ah, AR_PHY_ERR, phybits);
2333 REG_WRITE(ah, AR_RXCFG,
2334 REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
2336 REG_WRITE(ah, AR_RXCFG,
2337 REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
2339 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2341 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2343 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2346 ath9k_hw_init_pll(ah, NULL);
2349 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2351 bool ath9k_hw_disable(struct ath_hw *ah)
2353 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2356 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2359 ath9k_hw_init_pll(ah, NULL);
2362 EXPORT_SYMBOL(ath9k_hw_disable);
2364 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
2366 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2367 struct ath9k_channel *chan = ah->curchan;
2368 struct ieee80211_channel *channel = chan->chan;
2370 regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
2372 ah->eep_ops->set_txpower(ah, chan,
2373 ath9k_regd_get_ctl(regulatory, chan),
2374 channel->max_antenna_gain * 2,
2375 channel->max_power * 2,
2376 min((u32) MAX_RATE_POWER,
2377 (u32) regulatory->power_limit));
2379 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2381 void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac)
2383 memcpy(ath9k_hw_common(ah)->macaddr, mac, ETH_ALEN);
2385 EXPORT_SYMBOL(ath9k_hw_setmac);
2387 void ath9k_hw_setopmode(struct ath_hw *ah)
2389 ath9k_hw_set_operating_mode(ah, ah->opmode);
2391 EXPORT_SYMBOL(ath9k_hw_setopmode);
2393 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2395 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2396 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2398 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2400 void ath9k_hw_write_associd(struct ath_hw *ah)
2402 struct ath_common *common = ath9k_hw_common(ah);
2404 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2405 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2406 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2408 EXPORT_SYMBOL(ath9k_hw_write_associd);
2410 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2414 tsf = REG_READ(ah, AR_TSF_U32);
2415 tsf = (tsf << 32) | REG_READ(ah, AR_TSF_L32);
2419 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2421 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2423 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2424 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2426 EXPORT_SYMBOL(ath9k_hw_settsf64);
2428 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2430 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2431 AH_TSF_WRITE_TIMEOUT))
2432 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
2433 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2435 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2437 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2439 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
2442 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2444 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2446 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2449 * Extend 15-bit time stamp from rx descriptor to
2450 * a full 64-bit TSF using the current h/w TSF.
2452 u64 ath9k_hw_extend_tsf(struct ath_hw *ah, u32 rstamp)
2456 tsf = ath9k_hw_gettsf64(ah);
2457 if ((tsf & 0x7fff) < rstamp)
2459 return (tsf & ~0x7fff) | rstamp;
2461 EXPORT_SYMBOL(ath9k_hw_extend_tsf);
2463 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2465 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2468 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2469 macmode = AR_2040_JOINED_RX_CLEAR;
2473 REG_WRITE(ah, AR_2040_MODE, macmode);
2476 /* HW Generic timers configuration */
2478 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2480 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2481 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2482 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2483 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2484 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2485 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2486 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2487 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2488 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2489 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2490 AR_NDP2_TIMER_MODE, 0x0002},
2491 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2492 AR_NDP2_TIMER_MODE, 0x0004},
2493 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2494 AR_NDP2_TIMER_MODE, 0x0008},
2495 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2496 AR_NDP2_TIMER_MODE, 0x0010},
2497 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2498 AR_NDP2_TIMER_MODE, 0x0020},
2499 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2500 AR_NDP2_TIMER_MODE, 0x0040},
2501 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2502 AR_NDP2_TIMER_MODE, 0x0080}
2505 /* HW generic timer primitives */
2507 /* compute and clear index of rightmost 1 */
2508 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2518 return timer_table->gen_timer_index[b];
2521 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2523 return REG_READ(ah, AR_TSF_L32);
2525 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2527 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2528 void (*trigger)(void *),
2529 void (*overflow)(void *),
2533 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2534 struct ath_gen_timer *timer;
2536 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2538 if (timer == NULL) {
2539 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2540 "Failed to allocate memory"
2541 "for hw timer[%d]\n", timer_index);
2545 /* allocate a hardware generic timer slot */
2546 timer_table->timers[timer_index] = timer;
2547 timer->index = timer_index;
2548 timer->trigger = trigger;
2549 timer->overflow = overflow;
2554 EXPORT_SYMBOL(ath_gen_timer_alloc);
2556 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2557 struct ath_gen_timer *timer,
2561 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2564 BUG_ON(!timer_period);
2566 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2568 tsf = ath9k_hw_gettsf32(ah);
2570 ath_print(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
2571 "curent tsf %x period %x"
2572 "timer_next %x\n", tsf, timer_period, timer_next);
2575 * Pull timer_next forward if the current TSF already passed it
2576 * because of software latency
2578 if (timer_next < tsf)
2579 timer_next = tsf + timer_period;
2582 * Program generic timer registers
2584 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2586 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2588 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2589 gen_tmr_configuration[timer->index].mode_mask);
2591 /* Enable both trigger and thresh interrupt masks */
2592 REG_SET_BIT(ah, AR_IMR_S5,
2593 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2594 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2596 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2598 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2600 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2602 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2603 (timer->index >= ATH_MAX_GEN_TIMER)) {
2607 /* Clear generic timer enable bits. */
2608 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2609 gen_tmr_configuration[timer->index].mode_mask);
2611 /* Disable both trigger and thresh interrupt masks */
2612 REG_CLR_BIT(ah, AR_IMR_S5,
2613 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2614 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2616 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
2618 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
2620 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2622 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2624 /* free the hardware generic timer slot */
2625 timer_table->timers[timer->index] = NULL;
2628 EXPORT_SYMBOL(ath_gen_timer_free);
2631 * Generic Timer Interrupts handling
2633 void ath_gen_timer_isr(struct ath_hw *ah)
2635 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2636 struct ath_gen_timer *timer;
2637 struct ath_common *common = ath9k_hw_common(ah);
2638 u32 trigger_mask, thresh_mask, index;
2640 /* get hardware generic timer interrupt status */
2641 trigger_mask = ah->intr_gen_timer_trigger;
2642 thresh_mask = ah->intr_gen_timer_thresh;
2643 trigger_mask &= timer_table->timer_mask.val;
2644 thresh_mask &= timer_table->timer_mask.val;
2646 trigger_mask &= ~thresh_mask;
2648 while (thresh_mask) {
2649 index = rightmost_index(timer_table, &thresh_mask);
2650 timer = timer_table->timers[index];
2652 ath_print(common, ATH_DBG_HWTIMER,
2653 "TSF overflow for Gen timer %d\n", index);
2654 timer->overflow(timer->arg);
2657 while (trigger_mask) {
2658 index = rightmost_index(timer_table, &trigger_mask);
2659 timer = timer_table->timers[index];
2661 ath_print(common, ATH_DBG_HWTIMER,
2662 "Gen timer[%d] trigger\n", index);
2663 timer->trigger(timer->arg);
2666 EXPORT_SYMBOL(ath_gen_timer_isr);
2672 void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2674 ah->htc_reset_init = true;
2676 EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2681 } ath_mac_bb_names[] = {
2682 /* Devices with external radios */
2683 { AR_SREV_VERSION_5416_PCI, "5416" },
2684 { AR_SREV_VERSION_5416_PCIE, "5418" },
2685 { AR_SREV_VERSION_9100, "9100" },
2686 { AR_SREV_VERSION_9160, "9160" },
2687 /* Single-chip solutions */
2688 { AR_SREV_VERSION_9280, "9280" },
2689 { AR_SREV_VERSION_9285, "9285" },
2690 { AR_SREV_VERSION_9287, "9287" },
2691 { AR_SREV_VERSION_9271, "9271" },
2692 { AR_SREV_VERSION_9300, "9300" },
2695 /* For devices with external radios */
2699 } ath_rf_names[] = {
2701 { AR_RAD5133_SREV_MAJOR, "5133" },
2702 { AR_RAD5122_SREV_MAJOR, "5122" },
2703 { AR_RAD2133_SREV_MAJOR, "2133" },
2704 { AR_RAD2122_SREV_MAJOR, "2122" }
2708 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2710 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2714 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
2715 if (ath_mac_bb_names[i].version == mac_bb_version) {
2716 return ath_mac_bb_names[i].name;
2724 * Return the RF name. "????" is returned if the RF is unknown.
2725 * Used for devices with external radios.
2727 static const char *ath9k_hw_rf_name(u16 rf_version)
2731 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
2732 if (ath_rf_names[i].version == rf_version) {
2733 return ath_rf_names[i].name;
2740 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
2744 /* chipsets >= AR9280 are single-chip */
2745 if (AR_SREV_9280_10_OR_LATER(ah)) {
2746 used = snprintf(hw_name, len,
2747 "Atheros AR%s Rev:%x",
2748 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2749 ah->hw_version.macRev);
2752 used = snprintf(hw_name, len,
2753 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2754 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2755 ah->hw_version.macRev,
2756 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
2757 AR_RADIO_SREV_MAJOR)),
2758 ah->hw_version.phyRev);
2761 hw_name[used] = '\0';
2763 EXPORT_SYMBOL(ath9k_hw_name);