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);
899 if (AR_SREV_9300_20_OR_LATER(ah))
900 ath9k_hw_reset_txstatus_ring(ah);
903 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
907 val = REG_READ(ah, AR_STA_ID1);
908 val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
910 case NL80211_IFTYPE_AP:
911 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
912 | AR_STA_ID1_KSRCH_MODE);
913 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
915 case NL80211_IFTYPE_ADHOC:
916 case NL80211_IFTYPE_MESH_POINT:
917 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
918 | AR_STA_ID1_KSRCH_MODE);
919 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
921 case NL80211_IFTYPE_STATION:
922 case NL80211_IFTYPE_MONITOR:
923 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
928 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
929 u32 *coef_mantissa, u32 *coef_exponent)
931 u32 coef_exp, coef_man;
933 for (coef_exp = 31; coef_exp > 0; coef_exp--)
934 if ((coef_scaled >> coef_exp) & 0x1)
937 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
939 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
941 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
942 *coef_exponent = coef_exp - 16;
945 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
950 if (AR_SREV_9100(ah)) {
951 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
952 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
953 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
954 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
955 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
958 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
959 AR_RTC_FORCE_WAKE_ON_INT);
961 if (AR_SREV_9100(ah)) {
962 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
963 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
965 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
967 (AR_INTR_SYNC_LOCAL_TIMEOUT |
968 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
970 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
973 if (!AR_SREV_9300_20_OR_LATER(ah))
975 REG_WRITE(ah, AR_RC, val);
977 } else if (!AR_SREV_9300_20_OR_LATER(ah))
978 REG_WRITE(ah, AR_RC, AR_RC_AHB);
980 rst_flags = AR_RTC_RC_MAC_WARM;
981 if (type == ATH9K_RESET_COLD)
982 rst_flags |= AR_RTC_RC_MAC_COLD;
985 REG_WRITE(ah, AR_RTC_RC, rst_flags);
988 REG_WRITE(ah, AR_RTC_RC, 0);
989 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
990 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
991 "RTC stuck in MAC reset\n");
995 if (!AR_SREV_9100(ah))
996 REG_WRITE(ah, AR_RC, 0);
998 if (AR_SREV_9100(ah))
1004 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1006 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1007 AR_RTC_FORCE_WAKE_ON_INT);
1009 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1010 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1012 REG_WRITE(ah, AR_RTC_RESET, 0);
1014 if (!AR_SREV_9300_20_OR_LATER(ah))
1017 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1018 REG_WRITE(ah, AR_RC, 0);
1020 REG_WRITE(ah, AR_RTC_RESET, 1);
1022 if (!ath9k_hw_wait(ah,
1027 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1028 "RTC not waking up\n");
1032 ath9k_hw_read_revisions(ah);
1034 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1037 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1039 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1040 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1043 case ATH9K_RESET_POWER_ON:
1044 return ath9k_hw_set_reset_power_on(ah);
1045 case ATH9K_RESET_WARM:
1046 case ATH9K_RESET_COLD:
1047 return ath9k_hw_set_reset(ah, type);
1053 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1054 struct ath9k_channel *chan)
1056 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1057 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1059 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1062 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1065 ah->chip_fullsleep = false;
1066 ath9k_hw_init_pll(ah, chan);
1067 ath9k_hw_set_rfmode(ah, chan);
1072 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1073 struct ath9k_channel *chan)
1075 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1076 struct ath_common *common = ath9k_hw_common(ah);
1077 struct ieee80211_channel *channel = chan->chan;
1081 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1082 if (ath9k_hw_numtxpending(ah, qnum)) {
1083 ath_print(common, ATH_DBG_QUEUE,
1084 "Transmit frames pending on "
1085 "queue %d\n", qnum);
1090 if (!ath9k_hw_rfbus_req(ah)) {
1091 ath_print(common, ATH_DBG_FATAL,
1092 "Could not kill baseband RX\n");
1096 ath9k_hw_set_channel_regs(ah, chan);
1098 r = ath9k_hw_rf_set_freq(ah, chan);
1100 ath_print(common, ATH_DBG_FATAL,
1101 "Failed to set channel\n");
1105 ah->eep_ops->set_txpower(ah, chan,
1106 ath9k_regd_get_ctl(regulatory, chan),
1107 channel->max_antenna_gain * 2,
1108 channel->max_power * 2,
1109 min((u32) MAX_RATE_POWER,
1110 (u32) regulatory->power_limit));
1112 ath9k_hw_rfbus_done(ah);
1114 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1115 ath9k_hw_set_delta_slope(ah, chan);
1117 ath9k_hw_spur_mitigate_freq(ah, chan);
1119 if (!chan->oneTimeCalsDone)
1120 chan->oneTimeCalsDone = true;
1125 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1126 bool bChannelChange)
1128 struct ath_common *common = ath9k_hw_common(ah);
1130 struct ath9k_channel *curchan = ah->curchan;
1136 ah->txchainmask = common->tx_chainmask;
1137 ah->rxchainmask = common->rx_chainmask;
1139 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1142 if (curchan && !ah->chip_fullsleep)
1143 ath9k_hw_getnf(ah, curchan);
1145 if (bChannelChange &&
1146 (ah->chip_fullsleep != true) &&
1147 (ah->curchan != NULL) &&
1148 (chan->channel != ah->curchan->channel) &&
1149 ((chan->channelFlags & CHANNEL_ALL) ==
1150 (ah->curchan->channelFlags & CHANNEL_ALL)) &&
1151 !(AR_SREV_9280(ah) || IS_CHAN_A_5MHZ_SPACED(chan) ||
1152 IS_CHAN_A_5MHZ_SPACED(ah->curchan))) {
1154 if (ath9k_hw_channel_change(ah, chan)) {
1155 ath9k_hw_loadnf(ah, ah->curchan);
1156 ath9k_hw_start_nfcal(ah);
1161 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1162 if (saveDefAntenna == 0)
1165 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1167 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1168 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1169 tsf = ath9k_hw_gettsf64(ah);
1171 saveLedState = REG_READ(ah, AR_CFG_LED) &
1172 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1173 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1175 ath9k_hw_mark_phy_inactive(ah);
1177 /* Only required on the first reset */
1178 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1180 AR9271_RESET_POWER_DOWN_CONTROL,
1181 AR9271_RADIO_RF_RST);
1185 if (!ath9k_hw_chip_reset(ah, chan)) {
1186 ath_print(common, ATH_DBG_FATAL, "Chip reset failed\n");
1190 /* Only required on the first reset */
1191 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1192 ah->htc_reset_init = false;
1194 AR9271_RESET_POWER_DOWN_CONTROL,
1195 AR9271_GATE_MAC_CTL);
1200 if (tsf && AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1201 ath9k_hw_settsf64(ah, tsf);
1203 if (AR_SREV_9280_10_OR_LATER(ah))
1204 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1206 r = ath9k_hw_process_ini(ah, chan);
1210 /* Setup MFP options for CCMP */
1211 if (AR_SREV_9280_20_OR_LATER(ah)) {
1212 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1213 * frames when constructing CCMP AAD. */
1214 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1216 ah->sw_mgmt_crypto = false;
1217 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1218 /* Disable hardware crypto for management frames */
1219 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1220 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1221 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1222 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1223 ah->sw_mgmt_crypto = true;
1225 ah->sw_mgmt_crypto = true;
1227 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1228 ath9k_hw_set_delta_slope(ah, chan);
1230 ath9k_hw_spur_mitigate_freq(ah, chan);
1231 ah->eep_ops->set_board_values(ah, chan);
1233 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1234 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
1236 | AR_STA_ID1_RTS_USE_DEF
1238 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1239 | ah->sta_id1_defaults);
1240 ath9k_hw_set_operating_mode(ah, ah->opmode);
1242 ath_hw_setbssidmask(common);
1244 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1246 ath9k_hw_write_associd(ah);
1248 REG_WRITE(ah, AR_ISR, ~0);
1250 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1252 r = ath9k_hw_rf_set_freq(ah, chan);
1256 for (i = 0; i < AR_NUM_DCU; i++)
1257 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1260 for (i = 0; i < ah->caps.total_queues; i++)
1261 ath9k_hw_resettxqueue(ah, i);
1263 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1264 ath9k_hw_init_qos(ah);
1266 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1267 ath9k_enable_rfkill(ah);
1269 ath9k_hw_init_global_settings(ah);
1271 if (!AR_SREV_9300_20_OR_LATER(ah)) {
1272 ar9002_hw_enable_async_fifo(ah);
1273 ar9002_hw_enable_wep_aggregation(ah);
1276 REG_WRITE(ah, AR_STA_ID1,
1277 REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
1279 ath9k_hw_set_dma(ah);
1281 REG_WRITE(ah, AR_OBS, 8);
1283 if (ah->config.rx_intr_mitigation) {
1284 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
1285 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
1288 if (ah->config.tx_intr_mitigation) {
1289 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1290 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1293 ath9k_hw_init_bb(ah, chan);
1295 if (!ath9k_hw_init_cal(ah, chan))
1298 ath9k_hw_restore_chainmask(ah);
1299 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1302 * For big endian systems turn on swapping for descriptors
1304 if (AR_SREV_9100(ah)) {
1306 mask = REG_READ(ah, AR_CFG);
1307 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1308 ath_print(common, ATH_DBG_RESET,
1309 "CFG Byte Swap Set 0x%x\n", mask);
1312 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1313 REG_WRITE(ah, AR_CFG, mask);
1314 ath_print(common, ATH_DBG_RESET,
1315 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
1318 /* Configure AR9271 target WLAN */
1319 if (AR_SREV_9271(ah))
1320 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1323 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1327 if (ah->btcoex_hw.enabled)
1328 ath9k_hw_btcoex_enable(ah);
1330 if (AR_SREV_9300_20_OR_LATER(ah)) {
1331 ath9k_hw_loadnf(ah, curchan);
1332 ath9k_hw_start_nfcal(ah);
1337 EXPORT_SYMBOL(ath9k_hw_reset);
1339 /************************/
1340 /* Key Cache Management */
1341 /************************/
1343 bool ath9k_hw_keyreset(struct ath_hw *ah, u16 entry)
1347 if (entry >= ah->caps.keycache_size) {
1348 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1349 "keychache entry %u out of range\n", entry);
1353 keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
1355 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
1356 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
1357 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
1358 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
1359 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
1360 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
1361 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
1362 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
1364 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1365 u16 micentry = entry + 64;
1367 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
1368 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1369 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
1370 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1376 EXPORT_SYMBOL(ath9k_hw_keyreset);
1378 bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
1382 if (entry >= ah->caps.keycache_size) {
1383 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1384 "keychache entry %u out of range\n", entry);
1389 macHi = (mac[5] << 8) | mac[4];
1390 macLo = (mac[3] << 24) |
1395 macLo |= (macHi & 1) << 31;
1400 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
1401 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | AR_KEYTABLE_VALID);
1405 EXPORT_SYMBOL(ath9k_hw_keysetmac);
1407 bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
1408 const struct ath9k_keyval *k,
1411 const struct ath9k_hw_capabilities *pCap = &ah->caps;
1412 struct ath_common *common = ath9k_hw_common(ah);
1413 u32 key0, key1, key2, key3, key4;
1416 if (entry >= pCap->keycache_size) {
1417 ath_print(common, ATH_DBG_FATAL,
1418 "keycache entry %u out of range\n", entry);
1422 switch (k->kv_type) {
1423 case ATH9K_CIPHER_AES_OCB:
1424 keyType = AR_KEYTABLE_TYPE_AES;
1426 case ATH9K_CIPHER_AES_CCM:
1427 if (!(pCap->hw_caps & ATH9K_HW_CAP_CIPHER_AESCCM)) {
1428 ath_print(common, ATH_DBG_ANY,
1429 "AES-CCM not supported by mac rev 0x%x\n",
1430 ah->hw_version.macRev);
1433 keyType = AR_KEYTABLE_TYPE_CCM;
1435 case ATH9K_CIPHER_TKIP:
1436 keyType = AR_KEYTABLE_TYPE_TKIP;
1437 if (ATH9K_IS_MIC_ENABLED(ah)
1438 && entry + 64 >= pCap->keycache_size) {
1439 ath_print(common, ATH_DBG_ANY,
1440 "entry %u inappropriate for TKIP\n", entry);
1444 case ATH9K_CIPHER_WEP:
1445 if (k->kv_len < WLAN_KEY_LEN_WEP40) {
1446 ath_print(common, ATH_DBG_ANY,
1447 "WEP key length %u too small\n", k->kv_len);
1450 if (k->kv_len <= WLAN_KEY_LEN_WEP40)
1451 keyType = AR_KEYTABLE_TYPE_40;
1452 else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1453 keyType = AR_KEYTABLE_TYPE_104;
1455 keyType = AR_KEYTABLE_TYPE_128;
1457 case ATH9K_CIPHER_CLR:
1458 keyType = AR_KEYTABLE_TYPE_CLR;
1461 ath_print(common, ATH_DBG_FATAL,
1462 "cipher %u not supported\n", k->kv_type);
1466 key0 = get_unaligned_le32(k->kv_val + 0);
1467 key1 = get_unaligned_le16(k->kv_val + 4);
1468 key2 = get_unaligned_le32(k->kv_val + 6);
1469 key3 = get_unaligned_le16(k->kv_val + 10);
1470 key4 = get_unaligned_le32(k->kv_val + 12);
1471 if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1475 * Note: Key cache registers access special memory area that requires
1476 * two 32-bit writes to actually update the values in the internal
1477 * memory. Consequently, the exact order and pairs used here must be
1481 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1482 u16 micentry = entry + 64;
1485 * Write inverted key[47:0] first to avoid Michael MIC errors
1486 * on frames that could be sent or received at the same time.
1487 * The correct key will be written in the end once everything
1490 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), ~key0);
1491 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), ~key1);
1493 /* Write key[95:48] */
1494 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1495 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1497 /* Write key[127:96] and key type */
1498 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1499 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1501 /* Write MAC address for the entry */
1502 (void) ath9k_hw_keysetmac(ah, entry, mac);
1504 if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) {
1506 * TKIP uses two key cache entries:
1507 * Michael MIC TX/RX keys in the same key cache entry
1508 * (idx = main index + 64):
1509 * key0 [31:0] = RX key [31:0]
1510 * key1 [15:0] = TX key [31:16]
1511 * key1 [31:16] = reserved
1512 * key2 [31:0] = RX key [63:32]
1513 * key3 [15:0] = TX key [15:0]
1514 * key3 [31:16] = reserved
1515 * key4 [31:0] = TX key [63:32]
1517 u32 mic0, mic1, mic2, mic3, mic4;
1519 mic0 = get_unaligned_le32(k->kv_mic + 0);
1520 mic2 = get_unaligned_le32(k->kv_mic + 4);
1521 mic1 = get_unaligned_le16(k->kv_txmic + 2) & 0xffff;
1522 mic3 = get_unaligned_le16(k->kv_txmic + 0) & 0xffff;
1523 mic4 = get_unaligned_le32(k->kv_txmic + 4);
1525 /* Write RX[31:0] and TX[31:16] */
1526 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1527 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), mic1);
1529 /* Write RX[63:32] and TX[15:0] */
1530 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1531 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), mic3);
1533 /* Write TX[63:32] and keyType(reserved) */
1534 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), mic4);
1535 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1536 AR_KEYTABLE_TYPE_CLR);
1540 * TKIP uses four key cache entries (two for group
1542 * Michael MIC TX/RX keys are in different key cache
1543 * entries (idx = main index + 64 for TX and
1544 * main index + 32 + 96 for RX):
1545 * key0 [31:0] = TX/RX MIC key [31:0]
1546 * key1 [31:0] = reserved
1547 * key2 [31:0] = TX/RX MIC key [63:32]
1548 * key3 [31:0] = reserved
1549 * key4 [31:0] = reserved
1551 * Upper layer code will call this function separately
1552 * for TX and RX keys when these registers offsets are
1557 mic0 = get_unaligned_le32(k->kv_mic + 0);
1558 mic2 = get_unaligned_le32(k->kv_mic + 4);
1560 /* Write MIC key[31:0] */
1561 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1562 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1564 /* Write MIC key[63:32] */
1565 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1566 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1568 /* Write TX[63:32] and keyType(reserved) */
1569 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
1570 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1571 AR_KEYTABLE_TYPE_CLR);
1574 /* MAC address registers are reserved for the MIC entry */
1575 REG_WRITE(ah, AR_KEYTABLE_MAC0(micentry), 0);
1576 REG_WRITE(ah, AR_KEYTABLE_MAC1(micentry), 0);
1579 * Write the correct (un-inverted) key[47:0] last to enable
1580 * TKIP now that all other registers are set with correct
1583 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1584 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1586 /* Write key[47:0] */
1587 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1588 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1590 /* Write key[95:48] */
1591 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1592 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1594 /* Write key[127:96] and key type */
1595 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1596 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1598 /* Write MAC address for the entry */
1599 (void) ath9k_hw_keysetmac(ah, entry, mac);
1604 EXPORT_SYMBOL(ath9k_hw_set_keycache_entry);
1606 bool ath9k_hw_keyisvalid(struct ath_hw *ah, u16 entry)
1608 if (entry < ah->caps.keycache_size) {
1609 u32 val = REG_READ(ah, AR_KEYTABLE_MAC1(entry));
1610 if (val & AR_KEYTABLE_VALID)
1615 EXPORT_SYMBOL(ath9k_hw_keyisvalid);
1617 /******************************/
1618 /* Power Management (Chipset) */
1619 /******************************/
1622 * Notify Power Mgt is disabled in self-generated frames.
1623 * If requested, force chip to sleep.
1625 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
1627 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1630 * Clear the RTC force wake bit to allow the
1631 * mac to go to sleep.
1633 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1634 AR_RTC_FORCE_WAKE_EN);
1635 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1636 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1638 /* Shutdown chip. Active low */
1639 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah))
1640 REG_CLR_BIT(ah, (AR_RTC_RESET),
1646 * Notify Power Management is enabled in self-generating
1647 * frames. If request, set power mode of chip to
1648 * auto/normal. Duration in units of 128us (1/8 TU).
1650 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
1652 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1654 struct ath9k_hw_capabilities *pCap = &ah->caps;
1656 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1657 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1658 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1659 AR_RTC_FORCE_WAKE_ON_INT);
1662 * Clear the RTC force wake bit to allow the
1663 * mac to go to sleep.
1665 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1666 AR_RTC_FORCE_WAKE_EN);
1671 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
1677 if ((REG_READ(ah, AR_RTC_STATUS) &
1678 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1679 if (ath9k_hw_set_reset_reg(ah,
1680 ATH9K_RESET_POWER_ON) != true) {
1683 if (!AR_SREV_9300_20_OR_LATER(ah))
1684 ath9k_hw_init_pll(ah, NULL);
1686 if (AR_SREV_9100(ah))
1687 REG_SET_BIT(ah, AR_RTC_RESET,
1690 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1691 AR_RTC_FORCE_WAKE_EN);
1694 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1695 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1696 if (val == AR_RTC_STATUS_ON)
1699 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1700 AR_RTC_FORCE_WAKE_EN);
1703 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1704 "Failed to wakeup in %uus\n",
1705 POWER_UP_TIME / 20);
1710 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1715 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
1717 struct ath_common *common = ath9k_hw_common(ah);
1718 int status = true, setChip = true;
1719 static const char *modes[] = {
1726 if (ah->power_mode == mode)
1729 ath_print(common, ATH_DBG_RESET, "%s -> %s\n",
1730 modes[ah->power_mode], modes[mode]);
1733 case ATH9K_PM_AWAKE:
1734 status = ath9k_hw_set_power_awake(ah, setChip);
1736 case ATH9K_PM_FULL_SLEEP:
1737 ath9k_set_power_sleep(ah, setChip);
1738 ah->chip_fullsleep = true;
1740 case ATH9K_PM_NETWORK_SLEEP:
1741 ath9k_set_power_network_sleep(ah, setChip);
1744 ath_print(common, ATH_DBG_FATAL,
1745 "Unknown power mode %u\n", mode);
1748 ah->power_mode = mode;
1752 EXPORT_SYMBOL(ath9k_hw_setpower);
1754 /*******************/
1755 /* Beacon Handling */
1756 /*******************/
1758 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
1762 ah->beacon_interval = beacon_period;
1764 switch (ah->opmode) {
1765 case NL80211_IFTYPE_STATION:
1766 case NL80211_IFTYPE_MONITOR:
1767 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1768 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, 0xffff);
1769 REG_WRITE(ah, AR_NEXT_SWBA, 0x7ffff);
1770 flags |= AR_TBTT_TIMER_EN;
1772 case NL80211_IFTYPE_ADHOC:
1773 case NL80211_IFTYPE_MESH_POINT:
1774 REG_SET_BIT(ah, AR_TXCFG,
1775 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
1776 REG_WRITE(ah, AR_NEXT_NDP_TIMER,
1777 TU_TO_USEC(next_beacon +
1778 (ah->atim_window ? ah->
1780 flags |= AR_NDP_TIMER_EN;
1781 case NL80211_IFTYPE_AP:
1782 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1783 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT,
1784 TU_TO_USEC(next_beacon -
1786 dma_beacon_response_time));
1787 REG_WRITE(ah, AR_NEXT_SWBA,
1788 TU_TO_USEC(next_beacon -
1790 sw_beacon_response_time));
1792 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
1795 ath_print(ath9k_hw_common(ah), ATH_DBG_BEACON,
1796 "%s: unsupported opmode: %d\n",
1797 __func__, ah->opmode);
1802 REG_WRITE(ah, AR_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1803 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1804 REG_WRITE(ah, AR_SWBA_PERIOD, TU_TO_USEC(beacon_period));
1805 REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
1807 beacon_period &= ~ATH9K_BEACON_ENA;
1808 if (beacon_period & ATH9K_BEACON_RESET_TSF) {
1809 ath9k_hw_reset_tsf(ah);
1812 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
1814 EXPORT_SYMBOL(ath9k_hw_beaconinit);
1816 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
1817 const struct ath9k_beacon_state *bs)
1819 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
1820 struct ath9k_hw_capabilities *pCap = &ah->caps;
1821 struct ath_common *common = ath9k_hw_common(ah);
1823 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
1825 REG_WRITE(ah, AR_BEACON_PERIOD,
1826 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1827 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
1828 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1830 REG_RMW_FIELD(ah, AR_RSSI_THR,
1831 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
1833 beaconintval = bs->bs_intval & ATH9K_BEACON_PERIOD;
1835 if (bs->bs_sleepduration > beaconintval)
1836 beaconintval = bs->bs_sleepduration;
1838 dtimperiod = bs->bs_dtimperiod;
1839 if (bs->bs_sleepduration > dtimperiod)
1840 dtimperiod = bs->bs_sleepduration;
1842 if (beaconintval == dtimperiod)
1843 nextTbtt = bs->bs_nextdtim;
1845 nextTbtt = bs->bs_nexttbtt;
1847 ath_print(common, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
1848 ath_print(common, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
1849 ath_print(common, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
1850 ath_print(common, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
1852 REG_WRITE(ah, AR_NEXT_DTIM,
1853 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
1854 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
1856 REG_WRITE(ah, AR_SLEEP1,
1857 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
1858 | AR_SLEEP1_ASSUME_DTIM);
1860 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
1861 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
1863 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
1865 REG_WRITE(ah, AR_SLEEP2,
1866 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
1868 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
1869 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
1871 REG_SET_BIT(ah, AR_TIMER_MODE,
1872 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
1875 /* TSF Out of Range Threshold */
1876 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
1878 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
1880 /*******************/
1881 /* HW Capabilities */
1882 /*******************/
1884 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
1886 struct ath9k_hw_capabilities *pCap = &ah->caps;
1887 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1888 struct ath_common *common = ath9k_hw_common(ah);
1889 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
1891 u16 capField = 0, eeval;
1893 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
1894 regulatory->current_rd = eeval;
1896 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_1);
1897 if (AR_SREV_9285_10_OR_LATER(ah))
1898 eeval |= AR9285_RDEXT_DEFAULT;
1899 regulatory->current_rd_ext = eeval;
1901 capField = ah->eep_ops->get_eeprom(ah, EEP_OP_CAP);
1903 if (ah->opmode != NL80211_IFTYPE_AP &&
1904 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
1905 if (regulatory->current_rd == 0x64 ||
1906 regulatory->current_rd == 0x65)
1907 regulatory->current_rd += 5;
1908 else if (regulatory->current_rd == 0x41)
1909 regulatory->current_rd = 0x43;
1910 ath_print(common, ATH_DBG_REGULATORY,
1911 "regdomain mapped to 0x%x\n", regulatory->current_rd);
1914 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
1915 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
1916 ath_print(common, ATH_DBG_FATAL,
1917 "no band has been marked as supported in EEPROM.\n");
1921 bitmap_zero(pCap->wireless_modes, ATH9K_MODE_MAX);
1923 if (eeval & AR5416_OPFLAGS_11A) {
1924 set_bit(ATH9K_MODE_11A, pCap->wireless_modes);
1925 if (ah->config.ht_enable) {
1926 if (!(eeval & AR5416_OPFLAGS_N_5G_HT20))
1927 set_bit(ATH9K_MODE_11NA_HT20,
1928 pCap->wireless_modes);
1929 if (!(eeval & AR5416_OPFLAGS_N_5G_HT40)) {
1930 set_bit(ATH9K_MODE_11NA_HT40PLUS,
1931 pCap->wireless_modes);
1932 set_bit(ATH9K_MODE_11NA_HT40MINUS,
1933 pCap->wireless_modes);
1938 if (eeval & AR5416_OPFLAGS_11G) {
1939 set_bit(ATH9K_MODE_11G, pCap->wireless_modes);
1940 if (ah->config.ht_enable) {
1941 if (!(eeval & AR5416_OPFLAGS_N_2G_HT20))
1942 set_bit(ATH9K_MODE_11NG_HT20,
1943 pCap->wireless_modes);
1944 if (!(eeval & AR5416_OPFLAGS_N_2G_HT40)) {
1945 set_bit(ATH9K_MODE_11NG_HT40PLUS,
1946 pCap->wireless_modes);
1947 set_bit(ATH9K_MODE_11NG_HT40MINUS,
1948 pCap->wireless_modes);
1953 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
1955 * For AR9271 we will temporarilly uses the rx chainmax as read from
1958 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
1959 !(eeval & AR5416_OPFLAGS_11A) &&
1960 !(AR_SREV_9271(ah)))
1961 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
1962 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
1964 /* Use rx_chainmask from EEPROM. */
1965 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
1967 if (!(AR_SREV_9280(ah) && (ah->hw_version.macRev == 0)))
1968 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
1970 pCap->low_2ghz_chan = 2312;
1971 pCap->high_2ghz_chan = 2732;
1973 pCap->low_5ghz_chan = 4920;
1974 pCap->high_5ghz_chan = 6100;
1976 pCap->hw_caps &= ~ATH9K_HW_CAP_CIPHER_CKIP;
1977 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_TKIP;
1978 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_AESCCM;
1980 pCap->hw_caps &= ~ATH9K_HW_CAP_MIC_CKIP;
1981 pCap->hw_caps |= ATH9K_HW_CAP_MIC_TKIP;
1982 pCap->hw_caps |= ATH9K_HW_CAP_MIC_AESCCM;
1984 if (ah->config.ht_enable)
1985 pCap->hw_caps |= ATH9K_HW_CAP_HT;
1987 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
1989 pCap->hw_caps |= ATH9K_HW_CAP_GTT;
1990 pCap->hw_caps |= ATH9K_HW_CAP_VEOL;
1991 pCap->hw_caps |= ATH9K_HW_CAP_BSSIDMASK;
1992 pCap->hw_caps &= ~ATH9K_HW_CAP_MCAST_KEYSEARCH;
1994 if (capField & AR_EEPROM_EEPCAP_MAXQCU)
1995 pCap->total_queues =
1996 MS(capField, AR_EEPROM_EEPCAP_MAXQCU);
1998 pCap->total_queues = ATH9K_NUM_TX_QUEUES;
2000 if (capField & AR_EEPROM_EEPCAP_KC_ENTRIES)
2001 pCap->keycache_size =
2002 1 << MS(capField, AR_EEPROM_EEPCAP_KC_ENTRIES);
2004 pCap->keycache_size = AR_KEYTABLE_SIZE;
2006 pCap->hw_caps |= ATH9K_HW_CAP_FASTCC;
2008 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
2009 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD >> 1;
2011 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD;
2013 if (AR_SREV_9271(ah))
2014 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2015 else if (AR_SREV_9285_10_OR_LATER(ah))
2016 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2017 else if (AR_SREV_9280_10_OR_LATER(ah))
2018 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2020 pCap->num_gpio_pins = AR_NUM_GPIO;
2022 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
2023 pCap->hw_caps |= ATH9K_HW_CAP_CST;
2024 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2026 pCap->rts_aggr_limit = (8 * 1024);
2029 pCap->hw_caps |= ATH9K_HW_CAP_ENHANCEDPM;
2031 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
2032 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2033 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2035 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2036 ah->rfkill_polarity =
2037 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2039 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2042 if (AR_SREV_9271(ah))
2043 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2045 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2047 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2048 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2050 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2052 if (regulatory->current_rd_ext & (1 << REG_EXT_JAPAN_MIDBAND)) {
2054 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2055 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN |
2056 AR_EEPROM_EEREGCAP_EN_KK_U2 |
2057 AR_EEPROM_EEREGCAP_EN_KK_MIDBAND;
2060 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2061 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN;
2064 /* Advertise midband for AR5416 with FCC midband set in eeprom */
2065 if (regulatory->current_rd_ext & (1 << REG_EXT_FCC_MIDBAND) &&
2067 pCap->reg_cap |= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND;
2069 pCap->num_antcfg_5ghz =
2070 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_5GHZ);
2071 pCap->num_antcfg_2ghz =
2072 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
2074 if (AR_SREV_9280_10_OR_LATER(ah) &&
2075 ath9k_hw_btcoex_supported(ah)) {
2076 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
2077 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
2079 if (AR_SREV_9285(ah)) {
2080 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
2081 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
2083 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
2086 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
2089 if (AR_SREV_9300_20_OR_LATER(ah)) {
2090 pCap->hw_caps |= ATH9K_HW_CAP_EDMA;
2091 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2092 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2093 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2094 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2096 pCap->tx_desc_len = sizeof(struct ath_desc);
2099 if (AR_SREV_9300_20_OR_LATER(ah))
2100 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2105 bool ath9k_hw_getcapability(struct ath_hw *ah, enum ath9k_capability_type type,
2106 u32 capability, u32 *result)
2108 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2110 case ATH9K_CAP_CIPHER:
2111 switch (capability) {
2112 case ATH9K_CIPHER_AES_CCM:
2113 case ATH9K_CIPHER_AES_OCB:
2114 case ATH9K_CIPHER_TKIP:
2115 case ATH9K_CIPHER_WEP:
2116 case ATH9K_CIPHER_MIC:
2117 case ATH9K_CIPHER_CLR:
2122 case ATH9K_CAP_TKIP_MIC:
2123 switch (capability) {
2127 return (ah->sta_id1_defaults &
2128 AR_STA_ID1_CRPT_MIC_ENABLE) ? true :
2131 case ATH9K_CAP_TKIP_SPLIT:
2132 return (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) ?
2134 case ATH9K_CAP_MCAST_KEYSRCH:
2135 switch (capability) {
2139 if (REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_ADHOC) {
2142 return (ah->sta_id1_defaults &
2143 AR_STA_ID1_MCAST_KSRCH) ? true :
2148 case ATH9K_CAP_TXPOW:
2149 switch (capability) {
2153 *result = regulatory->power_limit;
2156 *result = regulatory->max_power_level;
2159 *result = regulatory->tp_scale;
2164 return (AR_SREV_9280_20_OR_LATER(ah) &&
2165 (ah->eep_ops->get_eeprom(ah, EEP_RC_CHAIN_MASK) == 1))
2171 EXPORT_SYMBOL(ath9k_hw_getcapability);
2173 bool ath9k_hw_setcapability(struct ath_hw *ah, enum ath9k_capability_type type,
2174 u32 capability, u32 setting, int *status)
2177 case ATH9K_CAP_TKIP_MIC:
2179 ah->sta_id1_defaults |=
2180 AR_STA_ID1_CRPT_MIC_ENABLE;
2182 ah->sta_id1_defaults &=
2183 ~AR_STA_ID1_CRPT_MIC_ENABLE;
2185 case ATH9K_CAP_MCAST_KEYSRCH:
2187 ah->sta_id1_defaults |= AR_STA_ID1_MCAST_KSRCH;
2189 ah->sta_id1_defaults &= ~AR_STA_ID1_MCAST_KSRCH;
2195 EXPORT_SYMBOL(ath9k_hw_setcapability);
2197 /****************************/
2198 /* GPIO / RFKILL / Antennae */
2199 /****************************/
2201 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2205 u32 gpio_shift, tmp;
2208 addr = AR_GPIO_OUTPUT_MUX3;
2210 addr = AR_GPIO_OUTPUT_MUX2;
2212 addr = AR_GPIO_OUTPUT_MUX1;
2214 gpio_shift = (gpio % 6) * 5;
2216 if (AR_SREV_9280_20_OR_LATER(ah)
2217 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2218 REG_RMW(ah, addr, (type << gpio_shift),
2219 (0x1f << gpio_shift));
2221 tmp = REG_READ(ah, addr);
2222 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2223 tmp &= ~(0x1f << gpio_shift);
2224 tmp |= (type << gpio_shift);
2225 REG_WRITE(ah, addr, tmp);
2229 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2233 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2235 gpio_shift = gpio << 1;
2239 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2240 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2242 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2244 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2246 #define MS_REG_READ(x, y) \
2247 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2249 if (gpio >= ah->caps.num_gpio_pins)
2252 if (AR_SREV_9300_20_OR_LATER(ah))
2253 return MS_REG_READ(AR9300, gpio) != 0;
2254 else if (AR_SREV_9271(ah))
2255 return MS_REG_READ(AR9271, gpio) != 0;
2256 else if (AR_SREV_9287_10_OR_LATER(ah))
2257 return MS_REG_READ(AR9287, gpio) != 0;
2258 else if (AR_SREV_9285_10_OR_LATER(ah))
2259 return MS_REG_READ(AR9285, gpio) != 0;
2260 else if (AR_SREV_9280_10_OR_LATER(ah))
2261 return MS_REG_READ(AR928X, gpio) != 0;
2263 return MS_REG_READ(AR, gpio) != 0;
2265 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2267 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2272 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2274 gpio_shift = 2 * gpio;
2278 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2279 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2281 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2283 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2285 if (AR_SREV_9271(ah))
2288 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2291 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2293 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
2295 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
2297 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
2299 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2301 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2303 EXPORT_SYMBOL(ath9k_hw_setantenna);
2305 /*********************/
2306 /* General Operation */
2307 /*********************/
2309 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2311 u32 bits = REG_READ(ah, AR_RX_FILTER);
2312 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2314 if (phybits & AR_PHY_ERR_RADAR)
2315 bits |= ATH9K_RX_FILTER_PHYRADAR;
2316 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2317 bits |= ATH9K_RX_FILTER_PHYERR;
2321 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2323 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2327 REG_WRITE(ah, AR_RX_FILTER, bits);
2330 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2331 phybits |= AR_PHY_ERR_RADAR;
2332 if (bits & ATH9K_RX_FILTER_PHYERR)
2333 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2334 REG_WRITE(ah, AR_PHY_ERR, phybits);
2337 REG_WRITE(ah, AR_RXCFG,
2338 REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
2340 REG_WRITE(ah, AR_RXCFG,
2341 REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
2343 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2345 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2347 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2350 ath9k_hw_init_pll(ah, NULL);
2353 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2355 bool ath9k_hw_disable(struct ath_hw *ah)
2357 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2360 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2363 ath9k_hw_init_pll(ah, NULL);
2366 EXPORT_SYMBOL(ath9k_hw_disable);
2368 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
2370 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2371 struct ath9k_channel *chan = ah->curchan;
2372 struct ieee80211_channel *channel = chan->chan;
2374 regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
2376 ah->eep_ops->set_txpower(ah, chan,
2377 ath9k_regd_get_ctl(regulatory, chan),
2378 channel->max_antenna_gain * 2,
2379 channel->max_power * 2,
2380 min((u32) MAX_RATE_POWER,
2381 (u32) regulatory->power_limit));
2383 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2385 void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac)
2387 memcpy(ath9k_hw_common(ah)->macaddr, mac, ETH_ALEN);
2389 EXPORT_SYMBOL(ath9k_hw_setmac);
2391 void ath9k_hw_setopmode(struct ath_hw *ah)
2393 ath9k_hw_set_operating_mode(ah, ah->opmode);
2395 EXPORT_SYMBOL(ath9k_hw_setopmode);
2397 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2399 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2400 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2402 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2404 void ath9k_hw_write_associd(struct ath_hw *ah)
2406 struct ath_common *common = ath9k_hw_common(ah);
2408 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2409 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2410 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2412 EXPORT_SYMBOL(ath9k_hw_write_associd);
2414 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2418 tsf = REG_READ(ah, AR_TSF_U32);
2419 tsf = (tsf << 32) | REG_READ(ah, AR_TSF_L32);
2423 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2425 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2427 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2428 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2430 EXPORT_SYMBOL(ath9k_hw_settsf64);
2432 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2434 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2435 AH_TSF_WRITE_TIMEOUT))
2436 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
2437 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2439 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2441 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2443 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
2446 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2448 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2450 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2453 * Extend 15-bit time stamp from rx descriptor to
2454 * a full 64-bit TSF using the current h/w TSF.
2456 u64 ath9k_hw_extend_tsf(struct ath_hw *ah, u32 rstamp)
2460 tsf = ath9k_hw_gettsf64(ah);
2461 if ((tsf & 0x7fff) < rstamp)
2463 return (tsf & ~0x7fff) | rstamp;
2465 EXPORT_SYMBOL(ath9k_hw_extend_tsf);
2467 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2469 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2472 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2473 macmode = AR_2040_JOINED_RX_CLEAR;
2477 REG_WRITE(ah, AR_2040_MODE, macmode);
2480 /* HW Generic timers configuration */
2482 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
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_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2489 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2490 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2491 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2492 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2493 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2494 AR_NDP2_TIMER_MODE, 0x0002},
2495 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2496 AR_NDP2_TIMER_MODE, 0x0004},
2497 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2498 AR_NDP2_TIMER_MODE, 0x0008},
2499 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2500 AR_NDP2_TIMER_MODE, 0x0010},
2501 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2502 AR_NDP2_TIMER_MODE, 0x0020},
2503 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2504 AR_NDP2_TIMER_MODE, 0x0040},
2505 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2506 AR_NDP2_TIMER_MODE, 0x0080}
2509 /* HW generic timer primitives */
2511 /* compute and clear index of rightmost 1 */
2512 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2522 return timer_table->gen_timer_index[b];
2525 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2527 return REG_READ(ah, AR_TSF_L32);
2529 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2531 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2532 void (*trigger)(void *),
2533 void (*overflow)(void *),
2537 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2538 struct ath_gen_timer *timer;
2540 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2542 if (timer == NULL) {
2543 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2544 "Failed to allocate memory"
2545 "for hw timer[%d]\n", timer_index);
2549 /* allocate a hardware generic timer slot */
2550 timer_table->timers[timer_index] = timer;
2551 timer->index = timer_index;
2552 timer->trigger = trigger;
2553 timer->overflow = overflow;
2558 EXPORT_SYMBOL(ath_gen_timer_alloc);
2560 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2561 struct ath_gen_timer *timer,
2565 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2568 BUG_ON(!timer_period);
2570 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2572 tsf = ath9k_hw_gettsf32(ah);
2574 ath_print(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
2575 "curent tsf %x period %x"
2576 "timer_next %x\n", tsf, timer_period, timer_next);
2579 * Pull timer_next forward if the current TSF already passed it
2580 * because of software latency
2582 if (timer_next < tsf)
2583 timer_next = tsf + timer_period;
2586 * Program generic timer registers
2588 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2590 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2592 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2593 gen_tmr_configuration[timer->index].mode_mask);
2595 /* Enable both trigger and thresh interrupt masks */
2596 REG_SET_BIT(ah, AR_IMR_S5,
2597 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2598 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2600 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2602 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2604 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2606 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2607 (timer->index >= ATH_MAX_GEN_TIMER)) {
2611 /* Clear generic timer enable bits. */
2612 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2613 gen_tmr_configuration[timer->index].mode_mask);
2615 /* Disable both trigger and thresh interrupt masks */
2616 REG_CLR_BIT(ah, AR_IMR_S5,
2617 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2618 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2620 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
2622 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
2624 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2626 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2628 /* free the hardware generic timer slot */
2629 timer_table->timers[timer->index] = NULL;
2632 EXPORT_SYMBOL(ath_gen_timer_free);
2635 * Generic Timer Interrupts handling
2637 void ath_gen_timer_isr(struct ath_hw *ah)
2639 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2640 struct ath_gen_timer *timer;
2641 struct ath_common *common = ath9k_hw_common(ah);
2642 u32 trigger_mask, thresh_mask, index;
2644 /* get hardware generic timer interrupt status */
2645 trigger_mask = ah->intr_gen_timer_trigger;
2646 thresh_mask = ah->intr_gen_timer_thresh;
2647 trigger_mask &= timer_table->timer_mask.val;
2648 thresh_mask &= timer_table->timer_mask.val;
2650 trigger_mask &= ~thresh_mask;
2652 while (thresh_mask) {
2653 index = rightmost_index(timer_table, &thresh_mask);
2654 timer = timer_table->timers[index];
2656 ath_print(common, ATH_DBG_HWTIMER,
2657 "TSF overflow for Gen timer %d\n", index);
2658 timer->overflow(timer->arg);
2661 while (trigger_mask) {
2662 index = rightmost_index(timer_table, &trigger_mask);
2663 timer = timer_table->timers[index];
2665 ath_print(common, ATH_DBG_HWTIMER,
2666 "Gen timer[%d] trigger\n", index);
2667 timer->trigger(timer->arg);
2670 EXPORT_SYMBOL(ath_gen_timer_isr);
2676 void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2678 ah->htc_reset_init = true;
2680 EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2685 } ath_mac_bb_names[] = {
2686 /* Devices with external radios */
2687 { AR_SREV_VERSION_5416_PCI, "5416" },
2688 { AR_SREV_VERSION_5416_PCIE, "5418" },
2689 { AR_SREV_VERSION_9100, "9100" },
2690 { AR_SREV_VERSION_9160, "9160" },
2691 /* Single-chip solutions */
2692 { AR_SREV_VERSION_9280, "9280" },
2693 { AR_SREV_VERSION_9285, "9285" },
2694 { AR_SREV_VERSION_9287, "9287" },
2695 { AR_SREV_VERSION_9271, "9271" },
2696 { AR_SREV_VERSION_9300, "9300" },
2699 /* For devices with external radios */
2703 } ath_rf_names[] = {
2705 { AR_RAD5133_SREV_MAJOR, "5133" },
2706 { AR_RAD5122_SREV_MAJOR, "5122" },
2707 { AR_RAD2133_SREV_MAJOR, "2133" },
2708 { AR_RAD2122_SREV_MAJOR, "2122" }
2712 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2714 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2718 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
2719 if (ath_mac_bb_names[i].version == mac_bb_version) {
2720 return ath_mac_bb_names[i].name;
2728 * Return the RF name. "????" is returned if the RF is unknown.
2729 * Used for devices with external radios.
2731 static const char *ath9k_hw_rf_name(u16 rf_version)
2735 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
2736 if (ath_rf_names[i].version == rf_version) {
2737 return ath_rf_names[i].name;
2744 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
2748 /* chipsets >= AR9280 are single-chip */
2749 if (AR_SREV_9280_10_OR_LATER(ah)) {
2750 used = snprintf(hw_name, len,
2751 "Atheros AR%s Rev:%x",
2752 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2753 ah->hw_version.macRev);
2756 used = snprintf(hw_name, len,
2757 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2758 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2759 ah->hw_version.macRev,
2760 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
2761 AR_RADIO_SREV_MAJOR)),
2762 ah->hw_version.phyRev);
2765 hw_name[used] = '\0';
2767 EXPORT_SYMBOL(ath9k_hw_name);