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>
23 #include "ar9003_mac.h"
25 #define ATH9K_CLOCK_RATE_CCK 22
26 #define ATH9K_CLOCK_RATE_5GHZ_OFDM 40
27 #define ATH9K_CLOCK_RATE_2GHZ_OFDM 44
29 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
31 MODULE_AUTHOR("Atheros Communications");
32 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
33 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
34 MODULE_LICENSE("Dual BSD/GPL");
36 static int __init ath9k_init(void)
40 module_init(ath9k_init);
42 static void __exit ath9k_exit(void)
46 module_exit(ath9k_exit);
48 /* Private hardware callbacks */
50 static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
52 ath9k_hw_private_ops(ah)->init_cal_settings(ah);
55 static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
57 ath9k_hw_private_ops(ah)->init_mode_regs(ah);
60 static bool ath9k_hw_macversion_supported(struct ath_hw *ah)
62 struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
64 return priv_ops->macversion_supported(ah->hw_version.macVersion);
67 static u32 ath9k_hw_compute_pll_control(struct ath_hw *ah,
68 struct ath9k_channel *chan)
70 return ath9k_hw_private_ops(ah)->compute_pll_control(ah, chan);
73 static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
75 if (!ath9k_hw_private_ops(ah)->init_mode_gain_regs)
78 ath9k_hw_private_ops(ah)->init_mode_gain_regs(ah);
81 /********************/
82 /* Helper Functions */
83 /********************/
85 static u32 ath9k_hw_mac_clks(struct ath_hw *ah, u32 usecs)
87 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
89 if (!ah->curchan) /* should really check for CCK instead */
90 return usecs *ATH9K_CLOCK_RATE_CCK;
91 if (conf->channel->band == IEEE80211_BAND_2GHZ)
92 return usecs *ATH9K_CLOCK_RATE_2GHZ_OFDM;
93 return usecs *ATH9K_CLOCK_RATE_5GHZ_OFDM;
96 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
98 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
100 if (conf_is_ht40(conf))
101 return ath9k_hw_mac_clks(ah, usecs) * 2;
103 return ath9k_hw_mac_clks(ah, usecs);
106 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
110 BUG_ON(timeout < AH_TIME_QUANTUM);
112 for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
113 if ((REG_READ(ah, reg) & mask) == val)
116 udelay(AH_TIME_QUANTUM);
119 ath_print(ath9k_hw_common(ah), ATH_DBG_ANY,
120 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
121 timeout, reg, REG_READ(ah, reg), mask, val);
125 EXPORT_SYMBOL(ath9k_hw_wait);
127 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
132 for (i = 0, retval = 0; i < n; i++) {
133 retval = (retval << 1) | (val & 1);
139 bool ath9k_get_channel_edges(struct ath_hw *ah,
143 struct ath9k_hw_capabilities *pCap = &ah->caps;
145 if (flags & CHANNEL_5GHZ) {
146 *low = pCap->low_5ghz_chan;
147 *high = pCap->high_5ghz_chan;
150 if ((flags & CHANNEL_2GHZ)) {
151 *low = pCap->low_2ghz_chan;
152 *high = pCap->high_2ghz_chan;
158 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
160 u32 frameLen, u16 rateix,
163 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
169 case WLAN_RC_PHY_CCK:
170 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
173 numBits = frameLen << 3;
174 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
176 case WLAN_RC_PHY_OFDM:
177 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
178 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
179 numBits = OFDM_PLCP_BITS + (frameLen << 3);
180 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
181 txTime = OFDM_SIFS_TIME_QUARTER
182 + OFDM_PREAMBLE_TIME_QUARTER
183 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
184 } else if (ah->curchan &&
185 IS_CHAN_HALF_RATE(ah->curchan)) {
186 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
187 numBits = OFDM_PLCP_BITS + (frameLen << 3);
188 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
189 txTime = OFDM_SIFS_TIME_HALF +
190 OFDM_PREAMBLE_TIME_HALF
191 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
193 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
194 numBits = OFDM_PLCP_BITS + (frameLen << 3);
195 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
196 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
197 + (numSymbols * OFDM_SYMBOL_TIME);
201 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
202 "Unknown phy %u (rate ix %u)\n", phy, rateix);
209 EXPORT_SYMBOL(ath9k_hw_computetxtime);
211 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
212 struct ath9k_channel *chan,
213 struct chan_centers *centers)
217 if (!IS_CHAN_HT40(chan)) {
218 centers->ctl_center = centers->ext_center =
219 centers->synth_center = chan->channel;
223 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
224 (chan->chanmode == CHANNEL_G_HT40PLUS)) {
225 centers->synth_center =
226 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
229 centers->synth_center =
230 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
234 centers->ctl_center =
235 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
236 /* 25 MHz spacing is supported by hw but not on upper layers */
237 centers->ext_center =
238 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
245 static void ath9k_hw_read_revisions(struct ath_hw *ah)
249 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
252 val = REG_READ(ah, AR_SREV);
253 ah->hw_version.macVersion =
254 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
255 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
256 ah->is_pciexpress = (val & AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
258 if (!AR_SREV_9100(ah))
259 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
261 ah->hw_version.macRev = val & AR_SREV_REVISION;
263 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
264 ah->is_pciexpress = true;
268 /************************************/
269 /* HW Attach, Detach, Init Routines */
270 /************************************/
272 static void ath9k_hw_disablepcie(struct ath_hw *ah)
274 if (AR_SREV_9100(ah))
277 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
278 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
279 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
280 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
281 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
282 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
283 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
284 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
285 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
287 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
290 /* This should work for all families including legacy */
291 static bool ath9k_hw_chip_test(struct ath_hw *ah)
293 struct ath_common *common = ath9k_hw_common(ah);
294 u32 regAddr[2] = { AR_STA_ID0 };
296 u32 patternData[4] = { 0x55555555,
302 if (!AR_SREV_9300_20_OR_LATER(ah)) {
304 regAddr[1] = AR_PHY_BASE + (8 << 2);
308 for (i = 0; i < loop_max; i++) {
309 u32 addr = regAddr[i];
312 regHold[i] = REG_READ(ah, addr);
313 for (j = 0; j < 0x100; j++) {
314 wrData = (j << 16) | j;
315 REG_WRITE(ah, addr, wrData);
316 rdData = REG_READ(ah, addr);
317 if (rdData != wrData) {
318 ath_print(common, ATH_DBG_FATAL,
319 "address test failed "
320 "addr: 0x%08x - wr:0x%08x != "
322 addr, wrData, rdData);
326 for (j = 0; j < 4; j++) {
327 wrData = patternData[j];
328 REG_WRITE(ah, addr, wrData);
329 rdData = REG_READ(ah, addr);
330 if (wrData != rdData) {
331 ath_print(common, ATH_DBG_FATAL,
332 "address test failed "
333 "addr: 0x%08x - wr:0x%08x != "
335 addr, wrData, rdData);
339 REG_WRITE(ah, regAddr[i], regHold[i]);
346 static void ath9k_hw_init_config(struct ath_hw *ah)
350 ah->config.dma_beacon_response_time = 2;
351 ah->config.sw_beacon_response_time = 10;
352 ah->config.additional_swba_backoff = 0;
353 ah->config.ack_6mb = 0x0;
354 ah->config.cwm_ignore_extcca = 0;
355 ah->config.pcie_powersave_enable = 0;
356 ah->config.pcie_clock_req = 0;
357 ah->config.pcie_waen = 0;
358 ah->config.analog_shiftreg = 1;
359 ah->config.ofdm_trig_low = 200;
360 ah->config.ofdm_trig_high = 500;
361 ah->config.cck_trig_high = 200;
362 ah->config.cck_trig_low = 100;
365 * For now ANI is disabled for AR9003, it is still
368 if (!AR_SREV_9300_20_OR_LATER(ah))
369 ah->config.enable_ani = 1;
371 for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
372 ah->config.spurchans[i][0] = AR_NO_SPUR;
373 ah->config.spurchans[i][1] = AR_NO_SPUR;
376 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
377 ah->config.ht_enable = 1;
379 ah->config.ht_enable = 0;
381 ah->config.rx_intr_mitigation = true;
384 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
385 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
386 * This means we use it for all AR5416 devices, and the few
387 * minor PCI AR9280 devices out there.
389 * Serialization is required because these devices do not handle
390 * well the case of two concurrent reads/writes due to the latency
391 * involved. During one read/write another read/write can be issued
392 * on another CPU while the previous read/write may still be working
393 * on our hardware, if we hit this case the hardware poops in a loop.
394 * We prevent this by serializing reads and writes.
396 * This issue is not present on PCI-Express devices or pre-AR5416
397 * devices (legacy, 802.11abg).
399 if (num_possible_cpus() > 1)
400 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
403 static void ath9k_hw_init_defaults(struct ath_hw *ah)
405 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
407 regulatory->country_code = CTRY_DEFAULT;
408 regulatory->power_limit = MAX_RATE_POWER;
409 regulatory->tp_scale = ATH9K_TP_SCALE_MAX;
411 ah->hw_version.magic = AR5416_MAGIC;
412 ah->hw_version.subvendorid = 0;
415 if (!AR_SREV_9100(ah))
416 ah->ah_flags = AH_USE_EEPROM;
419 ah->sta_id1_defaults = AR_STA_ID1_CRPT_MIC_ENABLE;
420 ah->beacon_interval = 100;
421 ah->enable_32kHz_clock = DONT_USE_32KHZ;
422 ah->slottime = (u32) -1;
423 ah->globaltxtimeout = (u32) -1;
424 ah->power_mode = ATH9K_PM_UNDEFINED;
427 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
429 struct ath_common *common = ath9k_hw_common(ah);
433 u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
436 for (i = 0; i < 3; i++) {
437 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
439 common->macaddr[2 * i] = eeval >> 8;
440 common->macaddr[2 * i + 1] = eeval & 0xff;
442 if (sum == 0 || sum == 0xffff * 3)
443 return -EADDRNOTAVAIL;
448 static int ath9k_hw_post_init(struct ath_hw *ah)
452 if (!AR_SREV_9271(ah)) {
453 if (!ath9k_hw_chip_test(ah))
457 if (!AR_SREV_9300_20_OR_LATER(ah)) {
458 ecode = ar9002_hw_rf_claim(ah);
463 ecode = ath9k_hw_eeprom_init(ah);
467 ath_print(ath9k_hw_common(ah), ATH_DBG_CONFIG,
468 "Eeprom VER: %d, REV: %d\n",
469 ah->eep_ops->get_eeprom_ver(ah),
470 ah->eep_ops->get_eeprom_rev(ah));
472 ecode = ath9k_hw_rf_alloc_ext_banks(ah);
474 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
475 "Failed allocating banks for "
480 if (!AR_SREV_9100(ah)) {
481 ath9k_hw_ani_setup(ah);
482 ath9k_hw_ani_init(ah);
488 static void ath9k_hw_attach_ops(struct ath_hw *ah)
490 if (AR_SREV_9300_20_OR_LATER(ah))
491 ar9003_hw_attach_ops(ah);
493 ar9002_hw_attach_ops(ah);
496 /* Called for all hardware families */
497 static int __ath9k_hw_init(struct ath_hw *ah)
499 struct ath_common *common = ath9k_hw_common(ah);
502 if (ah->hw_version.devid == AR5416_AR9100_DEVID)
503 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
505 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
506 ath_print(common, ATH_DBG_FATAL,
507 "Couldn't reset chip\n");
511 ath9k_hw_init_defaults(ah);
512 ath9k_hw_init_config(ah);
514 ath9k_hw_attach_ops(ah);
516 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
517 ath_print(common, ATH_DBG_FATAL, "Couldn't wakeup chip\n");
521 if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
522 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
523 (AR_SREV_9280(ah) && !ah->is_pciexpress)) {
524 ah->config.serialize_regmode =
527 ah->config.serialize_regmode =
532 ath_print(common, ATH_DBG_RESET, "serialize_regmode is %d\n",
533 ah->config.serialize_regmode);
535 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
536 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
538 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
540 if (!ath9k_hw_macversion_supported(ah)) {
541 ath_print(common, ATH_DBG_FATAL,
542 "Mac Chip Rev 0x%02x.%x is not supported by "
543 "this driver\n", ah->hw_version.macVersion,
544 ah->hw_version.macRev);
548 if (AR_SREV_9271(ah) || AR_SREV_9100(ah))
549 ah->is_pciexpress = false;
551 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
552 ath9k_hw_init_cal_settings(ah);
554 ah->ani_function = ATH9K_ANI_ALL;
555 if (AR_SREV_9280_10_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah))
556 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
558 ath9k_hw_init_mode_regs(ah);
560 if (ah->is_pciexpress)
561 ath9k_hw_configpcipowersave(ah, 0, 0);
563 ath9k_hw_disablepcie(ah);
565 if (!AR_SREV_9300_20_OR_LATER(ah))
566 ar9002_hw_cck_chan14_spread(ah);
568 r = ath9k_hw_post_init(ah);
572 ath9k_hw_init_mode_gain_regs(ah);
573 r = ath9k_hw_fill_cap_info(ah);
577 r = ath9k_hw_init_macaddr(ah);
579 ath_print(common, ATH_DBG_FATAL,
580 "Failed to initialize MAC address\n");
584 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
585 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
587 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
589 if (AR_SREV_9300_20_OR_LATER(ah))
590 ar9003_hw_set_nf_limits(ah);
592 ath9k_init_nfcal_hist_buffer(ah);
594 common->state = ATH_HW_INITIALIZED;
599 int ath9k_hw_init(struct ath_hw *ah)
602 struct ath_common *common = ath9k_hw_common(ah);
604 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
605 switch (ah->hw_version.devid) {
606 case AR5416_DEVID_PCI:
607 case AR5416_DEVID_PCIE:
608 case AR5416_AR9100_DEVID:
609 case AR9160_DEVID_PCI:
610 case AR9280_DEVID_PCI:
611 case AR9280_DEVID_PCIE:
612 case AR9285_DEVID_PCIE:
613 case AR9287_DEVID_PCI:
614 case AR9287_DEVID_PCIE:
615 case AR2427_DEVID_PCIE:
616 case AR9300_DEVID_PCIE:
619 if (common->bus_ops->ath_bus_type == ATH_USB)
621 ath_print(common, ATH_DBG_FATAL,
622 "Hardware device ID 0x%04x not supported\n",
623 ah->hw_version.devid);
627 ret = __ath9k_hw_init(ah);
629 ath_print(common, ATH_DBG_FATAL,
630 "Unable to initialize hardware; "
631 "initialization status: %d\n", ret);
637 EXPORT_SYMBOL(ath9k_hw_init);
639 static void ath9k_hw_init_qos(struct ath_hw *ah)
641 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
642 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
644 REG_WRITE(ah, AR_QOS_NO_ACK,
645 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
646 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
647 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
649 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
650 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
651 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
652 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
653 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
656 static void ath9k_hw_init_pll(struct ath_hw *ah,
657 struct ath9k_channel *chan)
659 u32 pll = ath9k_hw_compute_pll_control(ah, chan);
661 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
663 /* Switch the core clock for ar9271 to 117Mhz */
664 if (AR_SREV_9271(ah)) {
666 REG_WRITE(ah, 0x50040, 0x304);
669 udelay(RTC_PLL_SETTLE_DELAY);
671 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
674 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
675 enum nl80211_iftype opmode)
677 u32 imr_reg = AR_IMR_TXERR |
683 if (AR_SREV_9300_20_OR_LATER(ah)) {
684 imr_reg |= AR_IMR_RXOK_HP;
685 if (ah->config.rx_intr_mitigation)
686 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
688 imr_reg |= AR_IMR_RXOK_LP;
691 if (ah->config.rx_intr_mitigation)
692 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
694 imr_reg |= AR_IMR_RXOK;
697 if (ah->config.tx_intr_mitigation)
698 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
700 imr_reg |= AR_IMR_TXOK;
702 if (opmode == NL80211_IFTYPE_AP)
703 imr_reg |= AR_IMR_MIB;
705 REG_WRITE(ah, AR_IMR, imr_reg);
706 ah->imrs2_reg |= AR_IMR_S2_GTT;
707 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
709 if (!AR_SREV_9100(ah)) {
710 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
711 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
712 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
715 if (AR_SREV_9300_20_OR_LATER(ah)) {
716 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
717 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
718 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
719 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
723 static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
725 u32 val = ath9k_hw_mac_to_clks(ah, us);
726 val = min(val, (u32) 0xFFFF);
727 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
730 static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
732 u32 val = ath9k_hw_mac_to_clks(ah, us);
733 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
734 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
737 static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
739 u32 val = ath9k_hw_mac_to_clks(ah, us);
740 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
741 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
744 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
747 ath_print(ath9k_hw_common(ah), ATH_DBG_XMIT,
748 "bad global tx timeout %u\n", tu);
749 ah->globaltxtimeout = (u32) -1;
752 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
753 ah->globaltxtimeout = tu;
758 void ath9k_hw_init_global_settings(struct ath_hw *ah)
760 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
765 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
768 if (ah->misc_mode != 0)
769 REG_WRITE(ah, AR_PCU_MISC,
770 REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
772 if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ)
777 /* As defined by IEEE 802.11-2007 17.3.8.6 */
778 slottime = ah->slottime + 3 * ah->coverage_class;
779 acktimeout = slottime + sifstime;
782 * Workaround for early ACK timeouts, add an offset to match the
783 * initval's 64us ack timeout value.
784 * This was initially only meant to work around an issue with delayed
785 * BA frames in some implementations, but it has been found to fix ACK
786 * timeout issues in other cases as well.
788 if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ)
789 acktimeout += 64 - sifstime - ah->slottime;
791 ath9k_hw_setslottime(ah, slottime);
792 ath9k_hw_set_ack_timeout(ah, acktimeout);
793 ath9k_hw_set_cts_timeout(ah, acktimeout);
794 if (ah->globaltxtimeout != (u32) -1)
795 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
797 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
799 void ath9k_hw_deinit(struct ath_hw *ah)
801 struct ath_common *common = ath9k_hw_common(ah);
803 if (common->state < ATH_HW_INITIALIZED)
806 if (!AR_SREV_9100(ah))
807 ath9k_hw_ani_disable(ah);
809 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
812 ath9k_hw_rf_free_ext_banks(ah);
814 EXPORT_SYMBOL(ath9k_hw_deinit);
820 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
822 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
826 else if (IS_CHAN_G(chan))
834 /****************************************/
835 /* Reset and Channel Switching Routines */
836 /****************************************/
838 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
840 struct ath_common *common = ath9k_hw_common(ah);
844 * set AHB_MODE not to do cacheline prefetches
846 if (!AR_SREV_9300_20_OR_LATER(ah)) {
847 regval = REG_READ(ah, AR_AHB_MODE);
848 REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
852 * let mac dma reads be in 128 byte chunks
854 regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
855 REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
858 * Restore TX Trigger Level to its pre-reset value.
859 * The initial value depends on whether aggregation is enabled, and is
860 * adjusted whenever underruns are detected.
862 if (!AR_SREV_9300_20_OR_LATER(ah))
863 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
866 * let mac dma writes be in 128 byte chunks
868 regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
869 REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
872 * Setup receive FIFO threshold to hold off TX activities
874 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
876 if (AR_SREV_9300_20_OR_LATER(ah)) {
877 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
878 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
880 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
881 ah->caps.rx_status_len);
885 * reduce the number of usable entries in PCU TXBUF to avoid
886 * wrap around issues.
888 if (AR_SREV_9285(ah)) {
889 /* For AR9285 the number of Fifos are reduced to half.
890 * So set the usable tx buf size also to half to
891 * avoid data/delimiter underruns
893 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
894 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
895 } else if (!AR_SREV_9271(ah)) {
896 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
897 AR_PCU_TXBUF_CTRL_USABLE_SIZE);
900 if (AR_SREV_9300_20_OR_LATER(ah))
901 ath9k_hw_reset_txstatus_ring(ah);
904 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
908 val = REG_READ(ah, AR_STA_ID1);
909 val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
911 case NL80211_IFTYPE_AP:
912 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
913 | AR_STA_ID1_KSRCH_MODE);
914 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
916 case NL80211_IFTYPE_ADHOC:
917 case NL80211_IFTYPE_MESH_POINT:
918 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
919 | AR_STA_ID1_KSRCH_MODE);
920 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
922 case NL80211_IFTYPE_STATION:
923 case NL80211_IFTYPE_MONITOR:
924 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
929 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
930 u32 *coef_mantissa, u32 *coef_exponent)
932 u32 coef_exp, coef_man;
934 for (coef_exp = 31; coef_exp > 0; coef_exp--)
935 if ((coef_scaled >> coef_exp) & 0x1)
938 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
940 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
942 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
943 *coef_exponent = coef_exp - 16;
946 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
951 if (AR_SREV_9100(ah)) {
952 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
953 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
954 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
955 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
956 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
959 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
960 AR_RTC_FORCE_WAKE_ON_INT);
962 if (AR_SREV_9100(ah)) {
963 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
964 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
966 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
968 (AR_INTR_SYNC_LOCAL_TIMEOUT |
969 AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
971 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
974 if (!AR_SREV_9300_20_OR_LATER(ah))
976 REG_WRITE(ah, AR_RC, val);
978 } else if (!AR_SREV_9300_20_OR_LATER(ah))
979 REG_WRITE(ah, AR_RC, AR_RC_AHB);
981 rst_flags = AR_RTC_RC_MAC_WARM;
982 if (type == ATH9K_RESET_COLD)
983 rst_flags |= AR_RTC_RC_MAC_COLD;
986 REG_WRITE(ah, AR_RTC_RC, rst_flags);
989 REG_WRITE(ah, AR_RTC_RC, 0);
990 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
991 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
992 "RTC stuck in MAC reset\n");
996 if (!AR_SREV_9100(ah))
997 REG_WRITE(ah, AR_RC, 0);
999 if (AR_SREV_9100(ah))
1005 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1007 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1008 AR_RTC_FORCE_WAKE_ON_INT);
1010 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1011 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1013 REG_WRITE(ah, AR_RTC_RESET, 0);
1015 if (!AR_SREV_9300_20_OR_LATER(ah))
1018 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1019 REG_WRITE(ah, AR_RC, 0);
1021 REG_WRITE(ah, AR_RTC_RESET, 1);
1023 if (!ath9k_hw_wait(ah,
1028 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1029 "RTC not waking up\n");
1033 ath9k_hw_read_revisions(ah);
1035 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1038 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1040 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1041 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1044 case ATH9K_RESET_POWER_ON:
1045 return ath9k_hw_set_reset_power_on(ah);
1046 case ATH9K_RESET_WARM:
1047 case ATH9K_RESET_COLD:
1048 return ath9k_hw_set_reset(ah, type);
1054 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1055 struct ath9k_channel *chan)
1057 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1058 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1060 } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1063 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1066 ah->chip_fullsleep = false;
1067 ath9k_hw_init_pll(ah, chan);
1068 ath9k_hw_set_rfmode(ah, chan);
1073 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1074 struct ath9k_channel *chan)
1076 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1077 struct ath_common *common = ath9k_hw_common(ah);
1078 struct ieee80211_channel *channel = chan->chan;
1082 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1083 if (ath9k_hw_numtxpending(ah, qnum)) {
1084 ath_print(common, ATH_DBG_QUEUE,
1085 "Transmit frames pending on "
1086 "queue %d\n", qnum);
1091 if (!ath9k_hw_rfbus_req(ah)) {
1092 ath_print(common, ATH_DBG_FATAL,
1093 "Could not kill baseband RX\n");
1097 ath9k_hw_set_channel_regs(ah, chan);
1099 r = ath9k_hw_rf_set_freq(ah, chan);
1101 ath_print(common, ATH_DBG_FATAL,
1102 "Failed to set channel\n");
1106 ah->eep_ops->set_txpower(ah, chan,
1107 ath9k_regd_get_ctl(regulatory, chan),
1108 channel->max_antenna_gain * 2,
1109 channel->max_power * 2,
1110 min((u32) MAX_RATE_POWER,
1111 (u32) regulatory->power_limit));
1113 ath9k_hw_rfbus_done(ah);
1115 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1116 ath9k_hw_set_delta_slope(ah, chan);
1118 ath9k_hw_spur_mitigate_freq(ah, chan);
1120 if (!chan->oneTimeCalsDone)
1121 chan->oneTimeCalsDone = true;
1126 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1127 bool bChannelChange)
1129 struct ath_common *common = ath9k_hw_common(ah);
1131 struct ath9k_channel *curchan = ah->curchan;
1137 ah->txchainmask = common->tx_chainmask;
1138 ah->rxchainmask = common->rx_chainmask;
1140 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1143 if (curchan && !ah->chip_fullsleep)
1144 ath9k_hw_getnf(ah, curchan);
1146 if (bChannelChange &&
1147 (ah->chip_fullsleep != true) &&
1148 (ah->curchan != NULL) &&
1149 (chan->channel != ah->curchan->channel) &&
1150 ((chan->channelFlags & CHANNEL_ALL) ==
1151 (ah->curchan->channelFlags & CHANNEL_ALL)) &&
1152 !(AR_SREV_9280(ah) || IS_CHAN_A_5MHZ_SPACED(chan) ||
1153 IS_CHAN_A_5MHZ_SPACED(ah->curchan))) {
1155 if (ath9k_hw_channel_change(ah, chan)) {
1156 ath9k_hw_loadnf(ah, ah->curchan);
1157 ath9k_hw_start_nfcal(ah);
1162 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1163 if (saveDefAntenna == 0)
1166 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1168 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1169 if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1170 tsf = ath9k_hw_gettsf64(ah);
1172 saveLedState = REG_READ(ah, AR_CFG_LED) &
1173 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1174 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1176 ath9k_hw_mark_phy_inactive(ah);
1178 /* Only required on the first reset */
1179 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1181 AR9271_RESET_POWER_DOWN_CONTROL,
1182 AR9271_RADIO_RF_RST);
1186 if (!ath9k_hw_chip_reset(ah, chan)) {
1187 ath_print(common, ATH_DBG_FATAL, "Chip reset failed\n");
1191 /* Only required on the first reset */
1192 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1193 ah->htc_reset_init = false;
1195 AR9271_RESET_POWER_DOWN_CONTROL,
1196 AR9271_GATE_MAC_CTL);
1201 if (tsf && AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1202 ath9k_hw_settsf64(ah, tsf);
1204 if (AR_SREV_9280_10_OR_LATER(ah))
1205 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1207 r = ath9k_hw_process_ini(ah, chan);
1211 /* Setup MFP options for CCMP */
1212 if (AR_SREV_9280_20_OR_LATER(ah)) {
1213 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1214 * frames when constructing CCMP AAD. */
1215 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1217 ah->sw_mgmt_crypto = false;
1218 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1219 /* Disable hardware crypto for management frames */
1220 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1221 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1222 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1223 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1224 ah->sw_mgmt_crypto = true;
1226 ah->sw_mgmt_crypto = true;
1228 if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1229 ath9k_hw_set_delta_slope(ah, chan);
1231 ath9k_hw_spur_mitigate_freq(ah, chan);
1232 ah->eep_ops->set_board_values(ah, chan);
1234 REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
1235 REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
1237 | AR_STA_ID1_RTS_USE_DEF
1239 ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
1240 | ah->sta_id1_defaults);
1241 ath9k_hw_set_operating_mode(ah, ah->opmode);
1243 ath_hw_setbssidmask(common);
1245 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1247 ath9k_hw_write_associd(ah);
1249 REG_WRITE(ah, AR_ISR, ~0);
1251 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1253 r = ath9k_hw_rf_set_freq(ah, chan);
1257 for (i = 0; i < AR_NUM_DCU; i++)
1258 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1261 for (i = 0; i < ah->caps.total_queues; i++)
1262 ath9k_hw_resettxqueue(ah, i);
1264 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1265 ath9k_hw_init_qos(ah);
1267 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1268 ath9k_enable_rfkill(ah);
1270 ath9k_hw_init_global_settings(ah);
1272 if (!AR_SREV_9300_20_OR_LATER(ah)) {
1273 ar9002_hw_enable_async_fifo(ah);
1274 ar9002_hw_enable_wep_aggregation(ah);
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);
1331 if (AR_SREV_9300_20_OR_LATER(ah)) {
1332 ath9k_hw_loadnf(ah, curchan);
1333 ath9k_hw_start_nfcal(ah);
1338 EXPORT_SYMBOL(ath9k_hw_reset);
1340 /************************/
1341 /* Key Cache Management */
1342 /************************/
1344 bool ath9k_hw_keyreset(struct ath_hw *ah, u16 entry)
1348 if (entry >= ah->caps.keycache_size) {
1349 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1350 "keychache entry %u out of range\n", entry);
1354 keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
1356 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
1357 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
1358 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
1359 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
1360 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
1361 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
1362 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
1363 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
1365 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1366 u16 micentry = entry + 64;
1368 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
1369 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1370 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
1371 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1377 EXPORT_SYMBOL(ath9k_hw_keyreset);
1379 bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
1383 if (entry >= ah->caps.keycache_size) {
1384 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1385 "keychache entry %u out of range\n", entry);
1390 macHi = (mac[5] << 8) | mac[4];
1391 macLo = (mac[3] << 24) |
1396 macLo |= (macHi & 1) << 31;
1401 REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
1402 REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | AR_KEYTABLE_VALID);
1406 EXPORT_SYMBOL(ath9k_hw_keysetmac);
1408 bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
1409 const struct ath9k_keyval *k,
1412 const struct ath9k_hw_capabilities *pCap = &ah->caps;
1413 struct ath_common *common = ath9k_hw_common(ah);
1414 u32 key0, key1, key2, key3, key4;
1417 if (entry >= pCap->keycache_size) {
1418 ath_print(common, ATH_DBG_FATAL,
1419 "keycache entry %u out of range\n", entry);
1423 switch (k->kv_type) {
1424 case ATH9K_CIPHER_AES_OCB:
1425 keyType = AR_KEYTABLE_TYPE_AES;
1427 case ATH9K_CIPHER_AES_CCM:
1428 if (!(pCap->hw_caps & ATH9K_HW_CAP_CIPHER_AESCCM)) {
1429 ath_print(common, ATH_DBG_ANY,
1430 "AES-CCM not supported by mac rev 0x%x\n",
1431 ah->hw_version.macRev);
1434 keyType = AR_KEYTABLE_TYPE_CCM;
1436 case ATH9K_CIPHER_TKIP:
1437 keyType = AR_KEYTABLE_TYPE_TKIP;
1438 if (ATH9K_IS_MIC_ENABLED(ah)
1439 && entry + 64 >= pCap->keycache_size) {
1440 ath_print(common, ATH_DBG_ANY,
1441 "entry %u inappropriate for TKIP\n", entry);
1445 case ATH9K_CIPHER_WEP:
1446 if (k->kv_len < WLAN_KEY_LEN_WEP40) {
1447 ath_print(common, ATH_DBG_ANY,
1448 "WEP key length %u too small\n", k->kv_len);
1451 if (k->kv_len <= WLAN_KEY_LEN_WEP40)
1452 keyType = AR_KEYTABLE_TYPE_40;
1453 else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1454 keyType = AR_KEYTABLE_TYPE_104;
1456 keyType = AR_KEYTABLE_TYPE_128;
1458 case ATH9K_CIPHER_CLR:
1459 keyType = AR_KEYTABLE_TYPE_CLR;
1462 ath_print(common, ATH_DBG_FATAL,
1463 "cipher %u not supported\n", k->kv_type);
1467 key0 = get_unaligned_le32(k->kv_val + 0);
1468 key1 = get_unaligned_le16(k->kv_val + 4);
1469 key2 = get_unaligned_le32(k->kv_val + 6);
1470 key3 = get_unaligned_le16(k->kv_val + 10);
1471 key4 = get_unaligned_le32(k->kv_val + 12);
1472 if (k->kv_len <= WLAN_KEY_LEN_WEP104)
1476 * Note: Key cache registers access special memory area that requires
1477 * two 32-bit writes to actually update the values in the internal
1478 * memory. Consequently, the exact order and pairs used here must be
1482 if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
1483 u16 micentry = entry + 64;
1486 * Write inverted key[47:0] first to avoid Michael MIC errors
1487 * on frames that could be sent or received at the same time.
1488 * The correct key will be written in the end once everything
1491 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), ~key0);
1492 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), ~key1);
1494 /* Write key[95:48] */
1495 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1496 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1498 /* Write key[127:96] and key type */
1499 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1500 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1502 /* Write MAC address for the entry */
1503 (void) ath9k_hw_keysetmac(ah, entry, mac);
1505 if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) {
1507 * TKIP uses two key cache entries:
1508 * Michael MIC TX/RX keys in the same key cache entry
1509 * (idx = main index + 64):
1510 * key0 [31:0] = RX key [31:0]
1511 * key1 [15:0] = TX key [31:16]
1512 * key1 [31:16] = reserved
1513 * key2 [31:0] = RX key [63:32]
1514 * key3 [15:0] = TX key [15:0]
1515 * key3 [31:16] = reserved
1516 * key4 [31:0] = TX key [63:32]
1518 u32 mic0, mic1, mic2, mic3, mic4;
1520 mic0 = get_unaligned_le32(k->kv_mic + 0);
1521 mic2 = get_unaligned_le32(k->kv_mic + 4);
1522 mic1 = get_unaligned_le16(k->kv_txmic + 2) & 0xffff;
1523 mic3 = get_unaligned_le16(k->kv_txmic + 0) & 0xffff;
1524 mic4 = get_unaligned_le32(k->kv_txmic + 4);
1526 /* Write RX[31:0] and TX[31:16] */
1527 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1528 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), mic1);
1530 /* Write RX[63:32] and TX[15:0] */
1531 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1532 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), mic3);
1534 /* Write TX[63:32] and keyType(reserved) */
1535 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), mic4);
1536 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1537 AR_KEYTABLE_TYPE_CLR);
1541 * TKIP uses four key cache entries (two for group
1543 * Michael MIC TX/RX keys are in different key cache
1544 * entries (idx = main index + 64 for TX and
1545 * main index + 32 + 96 for RX):
1546 * key0 [31:0] = TX/RX MIC key [31:0]
1547 * key1 [31:0] = reserved
1548 * key2 [31:0] = TX/RX MIC key [63:32]
1549 * key3 [31:0] = reserved
1550 * key4 [31:0] = reserved
1552 * Upper layer code will call this function separately
1553 * for TX and RX keys when these registers offsets are
1558 mic0 = get_unaligned_le32(k->kv_mic + 0);
1559 mic2 = get_unaligned_le32(k->kv_mic + 4);
1561 /* Write MIC key[31:0] */
1562 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
1563 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
1565 /* Write MIC key[63:32] */
1566 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
1567 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
1569 /* Write TX[63:32] and keyType(reserved) */
1570 REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
1571 REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
1572 AR_KEYTABLE_TYPE_CLR);
1575 /* MAC address registers are reserved for the MIC entry */
1576 REG_WRITE(ah, AR_KEYTABLE_MAC0(micentry), 0);
1577 REG_WRITE(ah, AR_KEYTABLE_MAC1(micentry), 0);
1580 * Write the correct (un-inverted) key[47:0] last to enable
1581 * TKIP now that all other registers are set with correct
1584 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1585 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1587 /* Write key[47:0] */
1588 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
1589 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
1591 /* Write key[95:48] */
1592 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
1593 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
1595 /* Write key[127:96] and key type */
1596 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
1597 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
1599 /* Write MAC address for the entry */
1600 (void) ath9k_hw_keysetmac(ah, entry, mac);
1605 EXPORT_SYMBOL(ath9k_hw_set_keycache_entry);
1607 bool ath9k_hw_keyisvalid(struct ath_hw *ah, u16 entry)
1609 if (entry < ah->caps.keycache_size) {
1610 u32 val = REG_READ(ah, AR_KEYTABLE_MAC1(entry));
1611 if (val & AR_KEYTABLE_VALID)
1616 EXPORT_SYMBOL(ath9k_hw_keyisvalid);
1618 /******************************/
1619 /* Power Management (Chipset) */
1620 /******************************/
1623 * Notify Power Mgt is disabled in self-generated frames.
1624 * If requested, force chip to sleep.
1626 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
1628 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1631 * Clear the RTC force wake bit to allow the
1632 * mac to go to sleep.
1634 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1635 AR_RTC_FORCE_WAKE_EN);
1636 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1637 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1639 /* Shutdown chip. Active low */
1640 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah))
1641 REG_CLR_BIT(ah, (AR_RTC_RESET),
1647 * Notify Power Management is enabled in self-generating
1648 * frames. If request, set power mode of chip to
1649 * auto/normal. Duration in units of 128us (1/8 TU).
1651 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
1653 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1655 struct ath9k_hw_capabilities *pCap = &ah->caps;
1657 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1658 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1659 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1660 AR_RTC_FORCE_WAKE_ON_INT);
1663 * Clear the RTC force wake bit to allow the
1664 * mac to go to sleep.
1666 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
1667 AR_RTC_FORCE_WAKE_EN);
1672 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
1678 if ((REG_READ(ah, AR_RTC_STATUS) &
1679 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
1680 if (ath9k_hw_set_reset_reg(ah,
1681 ATH9K_RESET_POWER_ON) != true) {
1684 if (!AR_SREV_9300_20_OR_LATER(ah))
1685 ath9k_hw_init_pll(ah, NULL);
1687 if (AR_SREV_9100(ah))
1688 REG_SET_BIT(ah, AR_RTC_RESET,
1691 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1692 AR_RTC_FORCE_WAKE_EN);
1695 for (i = POWER_UP_TIME / 50; i > 0; i--) {
1696 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
1697 if (val == AR_RTC_STATUS_ON)
1700 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
1701 AR_RTC_FORCE_WAKE_EN);
1704 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1705 "Failed to wakeup in %uus\n",
1706 POWER_UP_TIME / 20);
1711 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1716 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
1718 struct ath_common *common = ath9k_hw_common(ah);
1719 int status = true, setChip = true;
1720 static const char *modes[] = {
1727 if (ah->power_mode == mode)
1730 ath_print(common, ATH_DBG_RESET, "%s -> %s\n",
1731 modes[ah->power_mode], modes[mode]);
1734 case ATH9K_PM_AWAKE:
1735 status = ath9k_hw_set_power_awake(ah, setChip);
1737 case ATH9K_PM_FULL_SLEEP:
1738 ath9k_set_power_sleep(ah, setChip);
1739 ah->chip_fullsleep = true;
1741 case ATH9K_PM_NETWORK_SLEEP:
1742 ath9k_set_power_network_sleep(ah, setChip);
1745 ath_print(common, ATH_DBG_FATAL,
1746 "Unknown power mode %u\n", mode);
1749 ah->power_mode = mode;
1753 EXPORT_SYMBOL(ath9k_hw_setpower);
1755 /*******************/
1756 /* Beacon Handling */
1757 /*******************/
1759 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
1763 ah->beacon_interval = beacon_period;
1765 switch (ah->opmode) {
1766 case NL80211_IFTYPE_STATION:
1767 case NL80211_IFTYPE_MONITOR:
1768 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1769 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, 0xffff);
1770 REG_WRITE(ah, AR_NEXT_SWBA, 0x7ffff);
1771 flags |= AR_TBTT_TIMER_EN;
1773 case NL80211_IFTYPE_ADHOC:
1774 case NL80211_IFTYPE_MESH_POINT:
1775 REG_SET_BIT(ah, AR_TXCFG,
1776 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
1777 REG_WRITE(ah, AR_NEXT_NDP_TIMER,
1778 TU_TO_USEC(next_beacon +
1779 (ah->atim_window ? ah->
1781 flags |= AR_NDP_TIMER_EN;
1782 case NL80211_IFTYPE_AP:
1783 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
1784 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT,
1785 TU_TO_USEC(next_beacon -
1787 dma_beacon_response_time));
1788 REG_WRITE(ah, AR_NEXT_SWBA,
1789 TU_TO_USEC(next_beacon -
1791 sw_beacon_response_time));
1793 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
1796 ath_print(ath9k_hw_common(ah), ATH_DBG_BEACON,
1797 "%s: unsupported opmode: %d\n",
1798 __func__, ah->opmode);
1803 REG_WRITE(ah, AR_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1804 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, TU_TO_USEC(beacon_period));
1805 REG_WRITE(ah, AR_SWBA_PERIOD, TU_TO_USEC(beacon_period));
1806 REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
1808 beacon_period &= ~ATH9K_BEACON_ENA;
1809 if (beacon_period & ATH9K_BEACON_RESET_TSF) {
1810 ath9k_hw_reset_tsf(ah);
1813 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
1815 EXPORT_SYMBOL(ath9k_hw_beaconinit);
1817 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
1818 const struct ath9k_beacon_state *bs)
1820 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
1821 struct ath9k_hw_capabilities *pCap = &ah->caps;
1822 struct ath_common *common = ath9k_hw_common(ah);
1824 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt));
1826 REG_WRITE(ah, AR_BEACON_PERIOD,
1827 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1828 REG_WRITE(ah, AR_DMA_BEACON_PERIOD,
1829 TU_TO_USEC(bs->bs_intval & ATH9K_BEACON_PERIOD));
1831 REG_RMW_FIELD(ah, AR_RSSI_THR,
1832 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
1834 beaconintval = bs->bs_intval & ATH9K_BEACON_PERIOD;
1836 if (bs->bs_sleepduration > beaconintval)
1837 beaconintval = bs->bs_sleepduration;
1839 dtimperiod = bs->bs_dtimperiod;
1840 if (bs->bs_sleepduration > dtimperiod)
1841 dtimperiod = bs->bs_sleepduration;
1843 if (beaconintval == dtimperiod)
1844 nextTbtt = bs->bs_nextdtim;
1846 nextTbtt = bs->bs_nexttbtt;
1848 ath_print(common, ATH_DBG_BEACON, "next DTIM %d\n", bs->bs_nextdtim);
1849 ath_print(common, ATH_DBG_BEACON, "next beacon %d\n", nextTbtt);
1850 ath_print(common, ATH_DBG_BEACON, "beacon period %d\n", beaconintval);
1851 ath_print(common, ATH_DBG_BEACON, "DTIM period %d\n", dtimperiod);
1853 REG_WRITE(ah, AR_NEXT_DTIM,
1854 TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP));
1855 REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP));
1857 REG_WRITE(ah, AR_SLEEP1,
1858 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
1859 | AR_SLEEP1_ASSUME_DTIM);
1861 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
1862 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
1864 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
1866 REG_WRITE(ah, AR_SLEEP2,
1867 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
1869 REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval));
1870 REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod));
1872 REG_SET_BIT(ah, AR_TIMER_MODE,
1873 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
1876 /* TSF Out of Range Threshold */
1877 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
1879 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
1881 /*******************/
1882 /* HW Capabilities */
1883 /*******************/
1885 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
1887 struct ath9k_hw_capabilities *pCap = &ah->caps;
1888 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1889 struct ath_common *common = ath9k_hw_common(ah);
1890 struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
1892 u16 capField = 0, eeval;
1894 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
1895 regulatory->current_rd = eeval;
1897 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_1);
1898 if (AR_SREV_9285_10_OR_LATER(ah))
1899 eeval |= AR9285_RDEXT_DEFAULT;
1900 regulatory->current_rd_ext = eeval;
1902 capField = ah->eep_ops->get_eeprom(ah, EEP_OP_CAP);
1904 if (ah->opmode != NL80211_IFTYPE_AP &&
1905 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
1906 if (regulatory->current_rd == 0x64 ||
1907 regulatory->current_rd == 0x65)
1908 regulatory->current_rd += 5;
1909 else if (regulatory->current_rd == 0x41)
1910 regulatory->current_rd = 0x43;
1911 ath_print(common, ATH_DBG_REGULATORY,
1912 "regdomain mapped to 0x%x\n", regulatory->current_rd);
1915 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
1916 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
1917 ath_print(common, ATH_DBG_FATAL,
1918 "no band has been marked as supported in EEPROM.\n");
1922 bitmap_zero(pCap->wireless_modes, ATH9K_MODE_MAX);
1924 if (eeval & AR5416_OPFLAGS_11A) {
1925 set_bit(ATH9K_MODE_11A, pCap->wireless_modes);
1926 if (ah->config.ht_enable) {
1927 if (!(eeval & AR5416_OPFLAGS_N_5G_HT20))
1928 set_bit(ATH9K_MODE_11NA_HT20,
1929 pCap->wireless_modes);
1930 if (!(eeval & AR5416_OPFLAGS_N_5G_HT40)) {
1931 set_bit(ATH9K_MODE_11NA_HT40PLUS,
1932 pCap->wireless_modes);
1933 set_bit(ATH9K_MODE_11NA_HT40MINUS,
1934 pCap->wireless_modes);
1939 if (eeval & AR5416_OPFLAGS_11G) {
1940 set_bit(ATH9K_MODE_11G, pCap->wireless_modes);
1941 if (ah->config.ht_enable) {
1942 if (!(eeval & AR5416_OPFLAGS_N_2G_HT20))
1943 set_bit(ATH9K_MODE_11NG_HT20,
1944 pCap->wireless_modes);
1945 if (!(eeval & AR5416_OPFLAGS_N_2G_HT40)) {
1946 set_bit(ATH9K_MODE_11NG_HT40PLUS,
1947 pCap->wireless_modes);
1948 set_bit(ATH9K_MODE_11NG_HT40MINUS,
1949 pCap->wireless_modes);
1954 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
1956 * For AR9271 we will temporarilly uses the rx chainmax as read from
1959 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
1960 !(eeval & AR5416_OPFLAGS_11A) &&
1961 !(AR_SREV_9271(ah)))
1962 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
1963 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
1965 /* Use rx_chainmask from EEPROM. */
1966 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
1968 if (!(AR_SREV_9280(ah) && (ah->hw_version.macRev == 0)))
1969 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
1971 pCap->low_2ghz_chan = 2312;
1972 pCap->high_2ghz_chan = 2732;
1974 pCap->low_5ghz_chan = 4920;
1975 pCap->high_5ghz_chan = 6100;
1977 pCap->hw_caps &= ~ATH9K_HW_CAP_CIPHER_CKIP;
1978 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_TKIP;
1979 pCap->hw_caps |= ATH9K_HW_CAP_CIPHER_AESCCM;
1981 pCap->hw_caps &= ~ATH9K_HW_CAP_MIC_CKIP;
1982 pCap->hw_caps |= ATH9K_HW_CAP_MIC_TKIP;
1983 pCap->hw_caps |= ATH9K_HW_CAP_MIC_AESCCM;
1985 if (ah->config.ht_enable)
1986 pCap->hw_caps |= ATH9K_HW_CAP_HT;
1988 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
1990 pCap->hw_caps |= ATH9K_HW_CAP_GTT;
1991 pCap->hw_caps |= ATH9K_HW_CAP_VEOL;
1992 pCap->hw_caps |= ATH9K_HW_CAP_BSSIDMASK;
1993 pCap->hw_caps &= ~ATH9K_HW_CAP_MCAST_KEYSEARCH;
1995 if (capField & AR_EEPROM_EEPCAP_MAXQCU)
1996 pCap->total_queues =
1997 MS(capField, AR_EEPROM_EEPCAP_MAXQCU);
1999 pCap->total_queues = ATH9K_NUM_TX_QUEUES;
2001 if (capField & AR_EEPROM_EEPCAP_KC_ENTRIES)
2002 pCap->keycache_size =
2003 1 << MS(capField, AR_EEPROM_EEPCAP_KC_ENTRIES);
2005 pCap->keycache_size = AR_KEYTABLE_SIZE;
2007 pCap->hw_caps |= ATH9K_HW_CAP_FASTCC;
2009 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
2010 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD >> 1;
2012 pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD;
2014 if (AR_SREV_9271(ah))
2015 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2016 else if (AR_SREV_9285_10_OR_LATER(ah))
2017 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2018 else if (AR_SREV_9280_10_OR_LATER(ah))
2019 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2021 pCap->num_gpio_pins = AR_NUM_GPIO;
2023 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) {
2024 pCap->hw_caps |= ATH9K_HW_CAP_CST;
2025 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2027 pCap->rts_aggr_limit = (8 * 1024);
2030 pCap->hw_caps |= ATH9K_HW_CAP_ENHANCEDPM;
2032 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
2033 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2034 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2036 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2037 ah->rfkill_polarity =
2038 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2040 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2043 if (AR_SREV_9271(ah))
2044 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2046 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2048 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2049 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2051 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2053 if (regulatory->current_rd_ext & (1 << REG_EXT_JAPAN_MIDBAND)) {
2055 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2056 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN |
2057 AR_EEPROM_EEREGCAP_EN_KK_U2 |
2058 AR_EEPROM_EEREGCAP_EN_KK_MIDBAND;
2061 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
2062 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN;
2065 /* Advertise midband for AR5416 with FCC midband set in eeprom */
2066 if (regulatory->current_rd_ext & (1 << REG_EXT_FCC_MIDBAND) &&
2068 pCap->reg_cap |= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND;
2070 pCap->num_antcfg_5ghz =
2071 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_5GHZ);
2072 pCap->num_antcfg_2ghz =
2073 ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
2075 if (AR_SREV_9280_10_OR_LATER(ah) &&
2076 ath9k_hw_btcoex_supported(ah)) {
2077 btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
2078 btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
2080 if (AR_SREV_9285(ah)) {
2081 btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
2082 btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
2084 btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
2087 btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;
2090 if (AR_SREV_9300_20_OR_LATER(ah)) {
2091 pCap->hw_caps |= ATH9K_HW_CAP_EDMA;
2092 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2093 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2094 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2095 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2097 pCap->tx_desc_len = sizeof(struct ath_desc);
2100 if (AR_SREV_9300_20_OR_LATER(ah))
2101 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2106 bool ath9k_hw_getcapability(struct ath_hw *ah, enum ath9k_capability_type type,
2107 u32 capability, u32 *result)
2109 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2111 case ATH9K_CAP_CIPHER:
2112 switch (capability) {
2113 case ATH9K_CIPHER_AES_CCM:
2114 case ATH9K_CIPHER_AES_OCB:
2115 case ATH9K_CIPHER_TKIP:
2116 case ATH9K_CIPHER_WEP:
2117 case ATH9K_CIPHER_MIC:
2118 case ATH9K_CIPHER_CLR:
2123 case ATH9K_CAP_TKIP_MIC:
2124 switch (capability) {
2128 return (ah->sta_id1_defaults &
2129 AR_STA_ID1_CRPT_MIC_ENABLE) ? true :
2132 case ATH9K_CAP_TKIP_SPLIT:
2133 return (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) ?
2135 case ATH9K_CAP_MCAST_KEYSRCH:
2136 switch (capability) {
2140 if (REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_ADHOC) {
2143 return (ah->sta_id1_defaults &
2144 AR_STA_ID1_MCAST_KSRCH) ? true :
2149 case ATH9K_CAP_TXPOW:
2150 switch (capability) {
2154 *result = regulatory->power_limit;
2157 *result = regulatory->max_power_level;
2160 *result = regulatory->tp_scale;
2165 return (AR_SREV_9280_20_OR_LATER(ah) &&
2166 (ah->eep_ops->get_eeprom(ah, EEP_RC_CHAIN_MASK) == 1))
2172 EXPORT_SYMBOL(ath9k_hw_getcapability);
2174 bool ath9k_hw_setcapability(struct ath_hw *ah, enum ath9k_capability_type type,
2175 u32 capability, u32 setting, int *status)
2178 case ATH9K_CAP_TKIP_MIC:
2180 ah->sta_id1_defaults |=
2181 AR_STA_ID1_CRPT_MIC_ENABLE;
2183 ah->sta_id1_defaults &=
2184 ~AR_STA_ID1_CRPT_MIC_ENABLE;
2186 case ATH9K_CAP_MCAST_KEYSRCH:
2188 ah->sta_id1_defaults |= AR_STA_ID1_MCAST_KSRCH;
2190 ah->sta_id1_defaults &= ~AR_STA_ID1_MCAST_KSRCH;
2196 EXPORT_SYMBOL(ath9k_hw_setcapability);
2198 /****************************/
2199 /* GPIO / RFKILL / Antennae */
2200 /****************************/
2202 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2206 u32 gpio_shift, tmp;
2209 addr = AR_GPIO_OUTPUT_MUX3;
2211 addr = AR_GPIO_OUTPUT_MUX2;
2213 addr = AR_GPIO_OUTPUT_MUX1;
2215 gpio_shift = (gpio % 6) * 5;
2217 if (AR_SREV_9280_20_OR_LATER(ah)
2218 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2219 REG_RMW(ah, addr, (type << gpio_shift),
2220 (0x1f << gpio_shift));
2222 tmp = REG_READ(ah, addr);
2223 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2224 tmp &= ~(0x1f << gpio_shift);
2225 tmp |= (type << gpio_shift);
2226 REG_WRITE(ah, addr, tmp);
2230 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2234 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2236 gpio_shift = gpio << 1;
2240 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2241 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2243 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2245 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2247 #define MS_REG_READ(x, y) \
2248 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2250 if (gpio >= ah->caps.num_gpio_pins)
2253 if (AR_SREV_9300_20_OR_LATER(ah))
2254 return MS_REG_READ(AR9300, gpio) != 0;
2255 else if (AR_SREV_9271(ah))
2256 return MS_REG_READ(AR9271, gpio) != 0;
2257 else if (AR_SREV_9287_10_OR_LATER(ah))
2258 return MS_REG_READ(AR9287, gpio) != 0;
2259 else if (AR_SREV_9285_10_OR_LATER(ah))
2260 return MS_REG_READ(AR9285, gpio) != 0;
2261 else if (AR_SREV_9280_10_OR_LATER(ah))
2262 return MS_REG_READ(AR928X, gpio) != 0;
2264 return MS_REG_READ(AR, gpio) != 0;
2266 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2268 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2273 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2275 gpio_shift = 2 * gpio;
2279 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2280 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2282 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2284 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2286 if (AR_SREV_9271(ah))
2289 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2292 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2294 u32 ath9k_hw_getdefantenna(struct ath_hw *ah)
2296 return REG_READ(ah, AR_DEF_ANTENNA) & 0x7;
2298 EXPORT_SYMBOL(ath9k_hw_getdefantenna);
2300 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2302 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2304 EXPORT_SYMBOL(ath9k_hw_setantenna);
2306 /*********************/
2307 /* General Operation */
2308 /*********************/
2310 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2312 u32 bits = REG_READ(ah, AR_RX_FILTER);
2313 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2315 if (phybits & AR_PHY_ERR_RADAR)
2316 bits |= ATH9K_RX_FILTER_PHYRADAR;
2317 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2318 bits |= ATH9K_RX_FILTER_PHYERR;
2322 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2324 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2328 REG_WRITE(ah, AR_RX_FILTER, bits);
2331 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2332 phybits |= AR_PHY_ERR_RADAR;
2333 if (bits & ATH9K_RX_FILTER_PHYERR)
2334 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2335 REG_WRITE(ah, AR_PHY_ERR, phybits);
2338 REG_WRITE(ah, AR_RXCFG,
2339 REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
2341 REG_WRITE(ah, AR_RXCFG,
2342 REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
2344 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2346 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2348 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2351 ath9k_hw_init_pll(ah, NULL);
2354 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2356 bool ath9k_hw_disable(struct ath_hw *ah)
2358 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2361 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2364 ath9k_hw_init_pll(ah, NULL);
2367 EXPORT_SYMBOL(ath9k_hw_disable);
2369 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit)
2371 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2372 struct ath9k_channel *chan = ah->curchan;
2373 struct ieee80211_channel *channel = chan->chan;
2375 regulatory->power_limit = min(limit, (u32) MAX_RATE_POWER);
2377 ah->eep_ops->set_txpower(ah, chan,
2378 ath9k_regd_get_ctl(regulatory, chan),
2379 channel->max_antenna_gain * 2,
2380 channel->max_power * 2,
2381 min((u32) MAX_RATE_POWER,
2382 (u32) regulatory->power_limit));
2384 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2386 void ath9k_hw_setmac(struct ath_hw *ah, const u8 *mac)
2388 memcpy(ath9k_hw_common(ah)->macaddr, mac, ETH_ALEN);
2390 EXPORT_SYMBOL(ath9k_hw_setmac);
2392 void ath9k_hw_setopmode(struct ath_hw *ah)
2394 ath9k_hw_set_operating_mode(ah, ah->opmode);
2396 EXPORT_SYMBOL(ath9k_hw_setopmode);
2398 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2400 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2401 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2403 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2405 void ath9k_hw_write_associd(struct ath_hw *ah)
2407 struct ath_common *common = ath9k_hw_common(ah);
2409 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2410 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2411 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2413 EXPORT_SYMBOL(ath9k_hw_write_associd);
2415 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2419 tsf = REG_READ(ah, AR_TSF_U32);
2420 tsf = (tsf << 32) | REG_READ(ah, AR_TSF_L32);
2424 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2426 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2428 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2429 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2431 EXPORT_SYMBOL(ath9k_hw_settsf64);
2433 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2435 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2436 AH_TSF_WRITE_TIMEOUT))
2437 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
2438 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2440 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2442 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2444 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)
2447 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2449 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2451 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2454 * Extend 15-bit time stamp from rx descriptor to
2455 * a full 64-bit TSF using the current h/w TSF.
2457 u64 ath9k_hw_extend_tsf(struct ath_hw *ah, u32 rstamp)
2461 tsf = ath9k_hw_gettsf64(ah);
2462 if ((tsf & 0x7fff) < rstamp)
2464 return (tsf & ~0x7fff) | rstamp;
2466 EXPORT_SYMBOL(ath9k_hw_extend_tsf);
2468 void ath9k_hw_set11nmac2040(struct ath_hw *ah)
2470 struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
2473 if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
2474 macmode = AR_2040_JOINED_RX_CLEAR;
2478 REG_WRITE(ah, AR_2040_MODE, macmode);
2481 /* HW Generic timers configuration */
2483 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
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_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2493 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2494 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2495 AR_NDP2_TIMER_MODE, 0x0002},
2496 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2497 AR_NDP2_TIMER_MODE, 0x0004},
2498 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2499 AR_NDP2_TIMER_MODE, 0x0008},
2500 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2501 AR_NDP2_TIMER_MODE, 0x0010},
2502 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2503 AR_NDP2_TIMER_MODE, 0x0020},
2504 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2505 AR_NDP2_TIMER_MODE, 0x0040},
2506 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2507 AR_NDP2_TIMER_MODE, 0x0080}
2510 /* HW generic timer primitives */
2512 /* compute and clear index of rightmost 1 */
2513 static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
2523 return timer_table->gen_timer_index[b];
2526 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2528 return REG_READ(ah, AR_TSF_L32);
2530 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2532 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2533 void (*trigger)(void *),
2534 void (*overflow)(void *),
2538 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2539 struct ath_gen_timer *timer;
2541 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2543 if (timer == NULL) {
2544 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2545 "Failed to allocate memory"
2546 "for hw timer[%d]\n", timer_index);
2550 /* allocate a hardware generic timer slot */
2551 timer_table->timers[timer_index] = timer;
2552 timer->index = timer_index;
2553 timer->trigger = trigger;
2554 timer->overflow = overflow;
2559 EXPORT_SYMBOL(ath_gen_timer_alloc);
2561 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2562 struct ath_gen_timer *timer,
2566 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2569 BUG_ON(!timer_period);
2571 set_bit(timer->index, &timer_table->timer_mask.timer_bits);
2573 tsf = ath9k_hw_gettsf32(ah);
2575 ath_print(ath9k_hw_common(ah), ATH_DBG_HWTIMER,
2576 "curent tsf %x period %x"
2577 "timer_next %x\n", tsf, timer_period, timer_next);
2580 * Pull timer_next forward if the current TSF already passed it
2581 * because of software latency
2583 if (timer_next < tsf)
2584 timer_next = tsf + timer_period;
2587 * Program generic timer registers
2589 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2591 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2593 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2594 gen_tmr_configuration[timer->index].mode_mask);
2596 /* Enable both trigger and thresh interrupt masks */
2597 REG_SET_BIT(ah, AR_IMR_S5,
2598 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2599 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2601 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2603 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2605 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2607 if ((timer->index < AR_FIRST_NDP_TIMER) ||
2608 (timer->index >= ATH_MAX_GEN_TIMER)) {
2612 /* Clear generic timer enable bits. */
2613 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2614 gen_tmr_configuration[timer->index].mode_mask);
2616 /* Disable both trigger and thresh interrupt masks */
2617 REG_CLR_BIT(ah, AR_IMR_S5,
2618 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2619 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
2621 clear_bit(timer->index, &timer_table->timer_mask.timer_bits);
2623 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
2625 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
2627 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2629 /* free the hardware generic timer slot */
2630 timer_table->timers[timer->index] = NULL;
2633 EXPORT_SYMBOL(ath_gen_timer_free);
2636 * Generic Timer Interrupts handling
2638 void ath_gen_timer_isr(struct ath_hw *ah)
2640 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2641 struct ath_gen_timer *timer;
2642 struct ath_common *common = ath9k_hw_common(ah);
2643 u32 trigger_mask, thresh_mask, index;
2645 /* get hardware generic timer interrupt status */
2646 trigger_mask = ah->intr_gen_timer_trigger;
2647 thresh_mask = ah->intr_gen_timer_thresh;
2648 trigger_mask &= timer_table->timer_mask.val;
2649 thresh_mask &= timer_table->timer_mask.val;
2651 trigger_mask &= ~thresh_mask;
2653 while (thresh_mask) {
2654 index = rightmost_index(timer_table, &thresh_mask);
2655 timer = timer_table->timers[index];
2657 ath_print(common, ATH_DBG_HWTIMER,
2658 "TSF overflow for Gen timer %d\n", index);
2659 timer->overflow(timer->arg);
2662 while (trigger_mask) {
2663 index = rightmost_index(timer_table, &trigger_mask);
2664 timer = timer_table->timers[index];
2666 ath_print(common, ATH_DBG_HWTIMER,
2667 "Gen timer[%d] trigger\n", index);
2668 timer->trigger(timer->arg);
2671 EXPORT_SYMBOL(ath_gen_timer_isr);
2677 void ath9k_hw_htc_resetinit(struct ath_hw *ah)
2679 ah->htc_reset_init = true;
2681 EXPORT_SYMBOL(ath9k_hw_htc_resetinit);
2686 } ath_mac_bb_names[] = {
2687 /* Devices with external radios */
2688 { AR_SREV_VERSION_5416_PCI, "5416" },
2689 { AR_SREV_VERSION_5416_PCIE, "5418" },
2690 { AR_SREV_VERSION_9100, "9100" },
2691 { AR_SREV_VERSION_9160, "9160" },
2692 /* Single-chip solutions */
2693 { AR_SREV_VERSION_9280, "9280" },
2694 { AR_SREV_VERSION_9285, "9285" },
2695 { AR_SREV_VERSION_9287, "9287" },
2696 { AR_SREV_VERSION_9271, "9271" },
2697 { AR_SREV_VERSION_9300, "9300" },
2700 /* For devices with external radios */
2704 } ath_rf_names[] = {
2706 { AR_RAD5133_SREV_MAJOR, "5133" },
2707 { AR_RAD5122_SREV_MAJOR, "5122" },
2708 { AR_RAD2133_SREV_MAJOR, "2133" },
2709 { AR_RAD2122_SREV_MAJOR, "2122" }
2713 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2715 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
2719 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
2720 if (ath_mac_bb_names[i].version == mac_bb_version) {
2721 return ath_mac_bb_names[i].name;
2729 * Return the RF name. "????" is returned if the RF is unknown.
2730 * Used for devices with external radios.
2732 static const char *ath9k_hw_rf_name(u16 rf_version)
2736 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
2737 if (ath_rf_names[i].version == rf_version) {
2738 return ath_rf_names[i].name;
2745 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
2749 /* chipsets >= AR9280 are single-chip */
2750 if (AR_SREV_9280_10_OR_LATER(ah)) {
2751 used = snprintf(hw_name, len,
2752 "Atheros AR%s Rev:%x",
2753 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2754 ah->hw_version.macRev);
2757 used = snprintf(hw_name, len,
2758 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2759 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
2760 ah->hw_version.macRev,
2761 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
2762 AR_RADIO_SREV_MAJOR)),
2763 ah->hw_version.phyRev);
2766 hw_name[used] = '\0';
2768 EXPORT_SYMBOL(ath9k_hw_name);