2 * Copyright (c) 2008-2011 Atheros Communications Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #include <linux/slab.h>
19 #include <linux/module.h>
20 #include <linux/time.h>
21 #include <linux/bitops.h>
22 #include <linux/etherdevice.h>
23 #include <asm/unaligned.h>
27 #include "ar9003_mac.h"
28 #include "ar9003_mci.h"
29 #include "ar9003_phy.h"
32 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
34 MODULE_AUTHOR("Atheros Communications");
35 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
36 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
37 MODULE_LICENSE("Dual BSD/GPL");
39 static void ath9k_hw_set_clockrate(struct ath_hw *ah)
41 struct ath_common *common = ath9k_hw_common(ah);
42 struct ath9k_channel *chan = ah->curchan;
43 unsigned int clockrate;
45 /* AR9287 v1.3+ uses async FIFO and runs the MAC at 117 MHz */
46 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah))
48 else if (!chan) /* should really check for CCK instead */
49 clockrate = ATH9K_CLOCK_RATE_CCK;
50 else if (IS_CHAN_2GHZ(chan))
51 clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
52 else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
53 clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
55 clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
58 if (IS_CHAN_HT40(chan))
60 if (IS_CHAN_HALF_RATE(chan))
62 if (IS_CHAN_QUARTER_RATE(chan))
66 common->clockrate = clockrate;
69 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
71 struct ath_common *common = ath9k_hw_common(ah);
73 return usecs * common->clockrate;
76 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
80 BUG_ON(timeout < AH_TIME_QUANTUM);
82 for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
83 if ((REG_READ(ah, reg) & mask) == val)
86 udelay(AH_TIME_QUANTUM);
89 ath_dbg(ath9k_hw_common(ah), ANY,
90 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
91 timeout, reg, REG_READ(ah, reg), mask, val);
95 EXPORT_SYMBOL(ath9k_hw_wait);
97 void ath9k_hw_synth_delay(struct ath_hw *ah, struct ath9k_channel *chan,
102 if (IS_CHAN_HALF_RATE(chan))
104 else if (IS_CHAN_QUARTER_RATE(chan))
107 udelay(hw_delay + BASE_ACTIVATE_DELAY);
110 void ath9k_hw_write_array(struct ath_hw *ah, const struct ar5416IniArray *array,
111 int column, unsigned int *writecnt)
115 ENABLE_REGWRITE_BUFFER(ah);
116 for (r = 0; r < array->ia_rows; r++) {
117 REG_WRITE(ah, INI_RA(array, r, 0),
118 INI_RA(array, r, column));
121 REGWRITE_BUFFER_FLUSH(ah);
124 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
129 for (i = 0, retval = 0; i < n; i++) {
130 retval = (retval << 1) | (val & 1);
136 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
138 u32 frameLen, u16 rateix,
141 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
147 case WLAN_RC_PHY_CCK:
148 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
151 numBits = frameLen << 3;
152 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
154 case WLAN_RC_PHY_OFDM:
155 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
156 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
157 numBits = OFDM_PLCP_BITS + (frameLen << 3);
158 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
159 txTime = OFDM_SIFS_TIME_QUARTER
160 + OFDM_PREAMBLE_TIME_QUARTER
161 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
162 } else if (ah->curchan &&
163 IS_CHAN_HALF_RATE(ah->curchan)) {
164 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
165 numBits = OFDM_PLCP_BITS + (frameLen << 3);
166 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
167 txTime = OFDM_SIFS_TIME_HALF +
168 OFDM_PREAMBLE_TIME_HALF
169 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
171 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
172 numBits = OFDM_PLCP_BITS + (frameLen << 3);
173 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
174 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
175 + (numSymbols * OFDM_SYMBOL_TIME);
179 ath_err(ath9k_hw_common(ah),
180 "Unknown phy %u (rate ix %u)\n", phy, rateix);
187 EXPORT_SYMBOL(ath9k_hw_computetxtime);
189 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
190 struct ath9k_channel *chan,
191 struct chan_centers *centers)
195 if (!IS_CHAN_HT40(chan)) {
196 centers->ctl_center = centers->ext_center =
197 centers->synth_center = chan->channel;
201 if (IS_CHAN_HT40PLUS(chan)) {
202 centers->synth_center =
203 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
206 centers->synth_center =
207 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
211 centers->ctl_center =
212 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
213 /* 25 MHz spacing is supported by hw but not on upper layers */
214 centers->ext_center =
215 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
222 static void ath9k_hw_read_revisions(struct ath_hw *ah)
226 if (ah->get_mac_revision)
227 ah->hw_version.macRev = ah->get_mac_revision();
229 switch (ah->hw_version.devid) {
230 case AR5416_AR9100_DEVID:
231 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
233 case AR9300_DEVID_AR9330:
234 ah->hw_version.macVersion = AR_SREV_VERSION_9330;
235 if (!ah->get_mac_revision) {
236 val = REG_READ(ah, AR_SREV);
237 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
240 case AR9300_DEVID_AR9340:
241 ah->hw_version.macVersion = AR_SREV_VERSION_9340;
243 case AR9300_DEVID_QCA955X:
244 ah->hw_version.macVersion = AR_SREV_VERSION_9550;
246 case AR9300_DEVID_AR953X:
247 ah->hw_version.macVersion = AR_SREV_VERSION_9531;
251 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
254 val = REG_READ(ah, AR_SREV);
255 ah->hw_version.macVersion =
256 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
257 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
259 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
260 ah->is_pciexpress = true;
262 ah->is_pciexpress = (val &
263 AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
265 if (!AR_SREV_9100(ah))
266 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
268 ah->hw_version.macRev = val & AR_SREV_REVISION;
270 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
271 ah->is_pciexpress = true;
275 /************************************/
276 /* HW Attach, Detach, Init Routines */
277 /************************************/
279 static void ath9k_hw_disablepcie(struct ath_hw *ah)
281 if (!AR_SREV_5416(ah))
284 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
285 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
286 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
287 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
288 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
289 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
290 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
291 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
292 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
294 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
297 /* This should work for all families including legacy */
298 static bool ath9k_hw_chip_test(struct ath_hw *ah)
300 struct ath_common *common = ath9k_hw_common(ah);
301 u32 regAddr[2] = { AR_STA_ID0 };
303 static const u32 patternData[4] = {
304 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999
308 if (!AR_SREV_9300_20_OR_LATER(ah)) {
310 regAddr[1] = AR_PHY_BASE + (8 << 2);
314 for (i = 0; i < loop_max; i++) {
315 u32 addr = regAddr[i];
318 regHold[i] = REG_READ(ah, addr);
319 for (j = 0; j < 0x100; j++) {
320 wrData = (j << 16) | j;
321 REG_WRITE(ah, addr, wrData);
322 rdData = REG_READ(ah, addr);
323 if (rdData != wrData) {
325 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
326 addr, wrData, rdData);
330 for (j = 0; j < 4; j++) {
331 wrData = patternData[j];
332 REG_WRITE(ah, addr, wrData);
333 rdData = REG_READ(ah, addr);
334 if (wrData != rdData) {
336 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
337 addr, wrData, rdData);
341 REG_WRITE(ah, regAddr[i], regHold[i]);
348 static void ath9k_hw_init_config(struct ath_hw *ah)
350 struct ath_common *common = ath9k_hw_common(ah);
352 ah->config.dma_beacon_response_time = 1;
353 ah->config.sw_beacon_response_time = 6;
354 ah->config.cwm_ignore_extcca = 0;
355 ah->config.analog_shiftreg = 1;
357 ah->config.rx_intr_mitigation = true;
359 if (AR_SREV_9300_20_OR_LATER(ah)) {
360 ah->config.rimt_last = 500;
361 ah->config.rimt_first = 2000;
363 ah->config.rimt_last = 250;
364 ah->config.rimt_first = 700;
368 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
369 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
370 * This means we use it for all AR5416 devices, and the few
371 * minor PCI AR9280 devices out there.
373 * Serialization is required because these devices do not handle
374 * well the case of two concurrent reads/writes due to the latency
375 * involved. During one read/write another read/write can be issued
376 * on another CPU while the previous read/write may still be working
377 * on our hardware, if we hit this case the hardware poops in a loop.
378 * We prevent this by serializing reads and writes.
380 * This issue is not present on PCI-Express devices or pre-AR5416
381 * devices (legacy, 802.11abg).
383 if (num_possible_cpus() > 1)
384 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
386 if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
387 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
388 ((AR_SREV_9160(ah) || AR_SREV_9280(ah) || AR_SREV_9287(ah)) &&
389 !ah->is_pciexpress)) {
390 ah->config.serialize_regmode = SER_REG_MODE_ON;
392 ah->config.serialize_regmode = SER_REG_MODE_OFF;
396 ath_dbg(common, RESET, "serialize_regmode is %d\n",
397 ah->config.serialize_regmode);
399 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
400 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
402 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
405 static void ath9k_hw_init_defaults(struct ath_hw *ah)
407 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
409 regulatory->country_code = CTRY_DEFAULT;
410 regulatory->power_limit = MAX_RATE_POWER;
412 ah->hw_version.magic = AR5416_MAGIC;
413 ah->hw_version.subvendorid = 0;
415 ah->sta_id1_defaults = AR_STA_ID1_CRPT_MIC_ENABLE |
416 AR_STA_ID1_MCAST_KSRCH;
417 if (AR_SREV_9100(ah))
418 ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX;
420 ah->slottime = ATH9K_SLOT_TIME_9;
421 ah->globaltxtimeout = (u32) -1;
422 ah->power_mode = ATH9K_PM_UNDEFINED;
423 ah->htc_reset_init = true;
425 ah->ani_function = ATH9K_ANI_ALL;
426 if (!AR_SREV_9300_20_OR_LATER(ah))
427 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
429 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
430 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
432 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
435 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
437 struct ath_common *common = ath9k_hw_common(ah);
441 static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
444 for (i = 0; i < 3; i++) {
445 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
447 common->macaddr[2 * i] = eeval >> 8;
448 common->macaddr[2 * i + 1] = eeval & 0xff;
450 if (!is_valid_ether_addr(common->macaddr)) {
452 "eeprom contains invalid mac address: %pM\n",
455 random_ether_addr(common->macaddr);
457 "random mac address will be used: %pM\n",
464 static int ath9k_hw_post_init(struct ath_hw *ah)
466 struct ath_common *common = ath9k_hw_common(ah);
469 if (common->bus_ops->ath_bus_type != ATH_USB) {
470 if (!ath9k_hw_chip_test(ah))
474 if (!AR_SREV_9300_20_OR_LATER(ah)) {
475 ecode = ar9002_hw_rf_claim(ah);
480 ecode = ath9k_hw_eeprom_init(ah);
484 ath_dbg(ath9k_hw_common(ah), CONFIG, "Eeprom VER: %d, REV: %d\n",
485 ah->eep_ops->get_eeprom_ver(ah),
486 ah->eep_ops->get_eeprom_rev(ah));
488 ath9k_hw_ani_init(ah);
491 * EEPROM needs to be initialized before we do this.
492 * This is required for regulatory compliance.
494 if (AR_SREV_9300_20_OR_LATER(ah)) {
495 u16 regdmn = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
496 if ((regdmn & 0xF0) == CTL_FCC) {
497 ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_FCC_2GHZ;
498 ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_FCC_5GHZ;
505 static int ath9k_hw_attach_ops(struct ath_hw *ah)
507 if (!AR_SREV_9300_20_OR_LATER(ah))
508 return ar9002_hw_attach_ops(ah);
510 ar9003_hw_attach_ops(ah);
514 /* Called for all hardware families */
515 static int __ath9k_hw_init(struct ath_hw *ah)
517 struct ath_common *common = ath9k_hw_common(ah);
520 ath9k_hw_read_revisions(ah);
522 switch (ah->hw_version.macVersion) {
523 case AR_SREV_VERSION_5416_PCI:
524 case AR_SREV_VERSION_5416_PCIE:
525 case AR_SREV_VERSION_9160:
526 case AR_SREV_VERSION_9100:
527 case AR_SREV_VERSION_9280:
528 case AR_SREV_VERSION_9285:
529 case AR_SREV_VERSION_9287:
530 case AR_SREV_VERSION_9271:
531 case AR_SREV_VERSION_9300:
532 case AR_SREV_VERSION_9330:
533 case AR_SREV_VERSION_9485:
534 case AR_SREV_VERSION_9340:
535 case AR_SREV_VERSION_9462:
536 case AR_SREV_VERSION_9550:
537 case AR_SREV_VERSION_9565:
538 case AR_SREV_VERSION_9531:
542 "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
543 ah->hw_version.macVersion, ah->hw_version.macRev);
548 * Read back AR_WA into a permanent copy and set bits 14 and 17.
549 * We need to do this to avoid RMW of this register. We cannot
550 * read the reg when chip is asleep.
552 if (AR_SREV_9300_20_OR_LATER(ah)) {
553 ah->WARegVal = REG_READ(ah, AR_WA);
554 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
555 AR_WA_ASPM_TIMER_BASED_DISABLE);
558 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
559 ath_err(common, "Couldn't reset chip\n");
563 if (AR_SREV_9565(ah)) {
564 ah->WARegVal |= AR_WA_BIT22;
565 REG_WRITE(ah, AR_WA, ah->WARegVal);
568 ath9k_hw_init_defaults(ah);
569 ath9k_hw_init_config(ah);
571 r = ath9k_hw_attach_ops(ah);
575 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
576 ath_err(common, "Couldn't wakeup chip\n");
580 if (AR_SREV_9271(ah) || AR_SREV_9100(ah) || AR_SREV_9340(ah) ||
581 AR_SREV_9330(ah) || AR_SREV_9550(ah))
582 ah->is_pciexpress = false;
584 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
585 ath9k_hw_init_cal_settings(ah);
587 if (!ah->is_pciexpress)
588 ath9k_hw_disablepcie(ah);
590 r = ath9k_hw_post_init(ah);
594 ath9k_hw_init_mode_gain_regs(ah);
595 r = ath9k_hw_fill_cap_info(ah);
599 r = ath9k_hw_init_macaddr(ah);
601 ath_err(common, "Failed to initialize MAC address\n");
605 ath9k_hw_init_hang_checks(ah);
607 common->state = ATH_HW_INITIALIZED;
612 int ath9k_hw_init(struct ath_hw *ah)
615 struct ath_common *common = ath9k_hw_common(ah);
617 /* These are all the AR5008/AR9001/AR9002/AR9003 hardware family of chipsets */
618 switch (ah->hw_version.devid) {
619 case AR5416_DEVID_PCI:
620 case AR5416_DEVID_PCIE:
621 case AR5416_AR9100_DEVID:
622 case AR9160_DEVID_PCI:
623 case AR9280_DEVID_PCI:
624 case AR9280_DEVID_PCIE:
625 case AR9285_DEVID_PCIE:
626 case AR9287_DEVID_PCI:
627 case AR9287_DEVID_PCIE:
628 case AR2427_DEVID_PCIE:
629 case AR9300_DEVID_PCIE:
630 case AR9300_DEVID_AR9485_PCIE:
631 case AR9300_DEVID_AR9330:
632 case AR9300_DEVID_AR9340:
633 case AR9300_DEVID_QCA955X:
634 case AR9300_DEVID_AR9580:
635 case AR9300_DEVID_AR9462:
636 case AR9485_DEVID_AR1111:
637 case AR9300_DEVID_AR9565:
638 case AR9300_DEVID_AR953X:
641 if (common->bus_ops->ath_bus_type == ATH_USB)
643 ath_err(common, "Hardware device ID 0x%04x not supported\n",
644 ah->hw_version.devid);
648 ret = __ath9k_hw_init(ah);
651 "Unable to initialize hardware; initialization status: %d\n",
660 EXPORT_SYMBOL(ath9k_hw_init);
662 static void ath9k_hw_init_qos(struct ath_hw *ah)
664 ENABLE_REGWRITE_BUFFER(ah);
666 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
667 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
669 REG_WRITE(ah, AR_QOS_NO_ACK,
670 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
671 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
672 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
674 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
675 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
676 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
677 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
678 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
680 REGWRITE_BUFFER_FLUSH(ah);
683 u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
685 struct ath_common *common = ath9k_hw_common(ah);
688 REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
690 REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
692 while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0) {
696 if (WARN_ON_ONCE(i >= 100)) {
697 ath_err(common, "PLL4 meaurement not done\n");
704 return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
706 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
708 static void ath9k_hw_init_pll(struct ath_hw *ah,
709 struct ath9k_channel *chan)
713 pll = ath9k_hw_compute_pll_control(ah, chan);
715 if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
716 /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */
717 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
718 AR_CH0_BB_DPLL2_PLL_PWD, 0x1);
719 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
720 AR_CH0_DPLL2_KD, 0x40);
721 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
722 AR_CH0_DPLL2_KI, 0x4);
724 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
725 AR_CH0_BB_DPLL1_REFDIV, 0x5);
726 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
727 AR_CH0_BB_DPLL1_NINI, 0x58);
728 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
729 AR_CH0_BB_DPLL1_NFRAC, 0x0);
731 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
732 AR_CH0_BB_DPLL2_OUTDIV, 0x1);
733 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
734 AR_CH0_BB_DPLL2_LOCAL_PLL, 0x1);
735 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
736 AR_CH0_BB_DPLL2_EN_NEGTRIG, 0x1);
738 /* program BB PLL phase_shift to 0x6 */
739 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
740 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x6);
742 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
743 AR_CH0_BB_DPLL2_PLL_PWD, 0x0);
745 } else if (AR_SREV_9330(ah)) {
746 u32 ddr_dpll2, pll_control2, kd;
748 if (ah->is_clk_25mhz) {
749 ddr_dpll2 = 0x18e82f01;
750 pll_control2 = 0xe04a3d;
753 ddr_dpll2 = 0x19e82f01;
754 pll_control2 = 0x886666;
758 /* program DDR PLL ki and kd value */
759 REG_WRITE(ah, AR_CH0_DDR_DPLL2, ddr_dpll2);
761 /* program DDR PLL phase_shift */
762 REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3,
763 AR_CH0_DPLL3_PHASE_SHIFT, 0x1);
765 REG_WRITE(ah, AR_RTC_PLL_CONTROL,
766 pll | AR_RTC_9300_PLL_BYPASS);
769 /* program refdiv, nint, frac to RTC register */
770 REG_WRITE(ah, AR_RTC_PLL_CONTROL2, pll_control2);
772 /* program BB PLL kd and ki value */
773 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KD, kd);
774 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KI, 0x06);
776 /* program BB PLL phase_shift */
777 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
778 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x1);
779 } else if (AR_SREV_9340(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah)) {
780 u32 regval, pll2_divint, pll2_divfrac, refdiv;
782 REG_WRITE(ah, AR_RTC_PLL_CONTROL,
783 pll | AR_RTC_9300_SOC_PLL_BYPASS);
786 REG_SET_BIT(ah, AR_PHY_PLL_MODE, 0x1 << 16);
789 if (ah->is_clk_25mhz) {
790 if (AR_SREV_9531(ah)) {
792 pll2_divfrac = 0xa3d2;
796 pll2_divfrac = 0x1eb85;
800 if (AR_SREV_9340(ah)) {
807 AR_SREV_9531(ah) ? 0x26665 : 0x26666;
812 regval = REG_READ(ah, AR_PHY_PLL_MODE);
813 if (AR_SREV_9531(ah))
814 regval |= (0x1 << 22);
816 regval |= (0x1 << 16);
817 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
820 REG_WRITE(ah, AR_PHY_PLL_CONTROL, (refdiv << 27) |
821 (pll2_divint << 18) | pll2_divfrac);
824 regval = REG_READ(ah, AR_PHY_PLL_MODE);
825 if (AR_SREV_9340(ah))
826 regval = (regval & 0x80071fff) |
831 else if (AR_SREV_9531(ah))
832 regval = (regval & 0x01c00fff) |
839 regval = (regval & 0x80071fff) |
844 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
846 if (AR_SREV_9531(ah))
847 REG_WRITE(ah, AR_PHY_PLL_MODE,
848 REG_READ(ah, AR_PHY_PLL_MODE) & 0xffbfffff);
850 REG_WRITE(ah, AR_PHY_PLL_MODE,
851 REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff);
856 if (AR_SREV_9565(ah))
858 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
860 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
864 /* Switch the core clock for ar9271 to 117Mhz */
865 if (AR_SREV_9271(ah)) {
867 REG_WRITE(ah, 0x50040, 0x304);
870 udelay(RTC_PLL_SETTLE_DELAY);
872 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
875 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
876 enum nl80211_iftype opmode)
878 u32 sync_default = AR_INTR_SYNC_DEFAULT;
879 u32 imr_reg = AR_IMR_TXERR |
885 if (AR_SREV_9340(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah))
886 sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
888 if (AR_SREV_9300_20_OR_LATER(ah)) {
889 imr_reg |= AR_IMR_RXOK_HP;
890 if (ah->config.rx_intr_mitigation)
891 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
893 imr_reg |= AR_IMR_RXOK_LP;
896 if (ah->config.rx_intr_mitigation)
897 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
899 imr_reg |= AR_IMR_RXOK;
902 if (ah->config.tx_intr_mitigation)
903 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
905 imr_reg |= AR_IMR_TXOK;
907 ENABLE_REGWRITE_BUFFER(ah);
909 REG_WRITE(ah, AR_IMR, imr_reg);
910 ah->imrs2_reg |= AR_IMR_S2_GTT;
911 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
913 if (!AR_SREV_9100(ah)) {
914 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
915 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default);
916 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
919 REGWRITE_BUFFER_FLUSH(ah);
921 if (AR_SREV_9300_20_OR_LATER(ah)) {
922 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
923 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
924 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
925 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
929 static void ath9k_hw_set_sifs_time(struct ath_hw *ah, u32 us)
931 u32 val = ath9k_hw_mac_to_clks(ah, us - 2);
932 val = min(val, (u32) 0xFFFF);
933 REG_WRITE(ah, AR_D_GBL_IFS_SIFS, val);
936 void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
938 u32 val = ath9k_hw_mac_to_clks(ah, us);
939 val = min(val, (u32) 0xFFFF);
940 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
943 void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
945 u32 val = ath9k_hw_mac_to_clks(ah, us);
946 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
947 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
950 void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
952 u32 val = ath9k_hw_mac_to_clks(ah, us);
953 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
954 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
957 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
960 ath_dbg(ath9k_hw_common(ah), XMIT, "bad global tx timeout %u\n",
962 ah->globaltxtimeout = (u32) -1;
965 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
966 ah->globaltxtimeout = tu;
971 void ath9k_hw_init_global_settings(struct ath_hw *ah)
973 struct ath_common *common = ath9k_hw_common(ah);
974 const struct ath9k_channel *chan = ah->curchan;
975 int acktimeout, ctstimeout, ack_offset = 0;
978 int rx_lat = 0, tx_lat = 0, eifs = 0;
981 ath_dbg(ath9k_hw_common(ah), RESET, "ah->misc_mode 0x%x\n",
987 if (ah->misc_mode != 0)
988 REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
990 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
996 if (IS_CHAN_5GHZ(chan))
1001 if (IS_CHAN_HALF_RATE(chan)) {
1005 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1011 } else if (IS_CHAN_QUARTER_RATE(chan)) {
1013 rx_lat = (rx_lat * 4) - 1;
1015 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1022 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1023 eifs = AR_D_GBL_IFS_EIFS_ASYNC_FIFO;
1024 reg = AR_USEC_ASYNC_FIFO;
1026 eifs = REG_READ(ah, AR_D_GBL_IFS_EIFS)/
1028 reg = REG_READ(ah, AR_USEC);
1030 rx_lat = MS(reg, AR_USEC_RX_LAT);
1031 tx_lat = MS(reg, AR_USEC_TX_LAT);
1033 slottime = ah->slottime;
1036 /* As defined by IEEE 802.11-2007 17.3.8.6 */
1037 slottime += 3 * ah->coverage_class;
1038 acktimeout = slottime + sifstime + ack_offset;
1039 ctstimeout = acktimeout;
1042 * Workaround for early ACK timeouts, add an offset to match the
1043 * initval's 64us ack timeout value. Use 48us for the CTS timeout.
1044 * This was initially only meant to work around an issue with delayed
1045 * BA frames in some implementations, but it has been found to fix ACK
1046 * timeout issues in other cases as well.
1048 if (IS_CHAN_2GHZ(chan) &&
1049 !IS_CHAN_HALF_RATE(chan) && !IS_CHAN_QUARTER_RATE(chan)) {
1050 acktimeout += 64 - sifstime - ah->slottime;
1051 ctstimeout += 48 - sifstime - ah->slottime;
1054 if (ah->dynack.enabled) {
1055 acktimeout = ah->dynack.ackto;
1056 ctstimeout = acktimeout;
1057 slottime = (acktimeout - 3) / 2;
1059 ah->dynack.ackto = acktimeout;
1062 ath9k_hw_set_sifs_time(ah, sifstime);
1063 ath9k_hw_setslottime(ah, slottime);
1064 ath9k_hw_set_ack_timeout(ah, acktimeout);
1065 ath9k_hw_set_cts_timeout(ah, ctstimeout);
1066 if (ah->globaltxtimeout != (u32) -1)
1067 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
1069 REG_WRITE(ah, AR_D_GBL_IFS_EIFS, ath9k_hw_mac_to_clks(ah, eifs));
1070 REG_RMW(ah, AR_USEC,
1071 (common->clockrate - 1) |
1072 SM(rx_lat, AR_USEC_RX_LAT) |
1073 SM(tx_lat, AR_USEC_TX_LAT),
1074 AR_USEC_TX_LAT | AR_USEC_RX_LAT | AR_USEC_USEC);
1077 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
1079 void ath9k_hw_deinit(struct ath_hw *ah)
1081 struct ath_common *common = ath9k_hw_common(ah);
1083 if (common->state < ATH_HW_INITIALIZED)
1086 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
1088 EXPORT_SYMBOL(ath9k_hw_deinit);
1094 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
1096 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
1098 if (IS_CHAN_2GHZ(chan))
1106 /****************************************/
1107 /* Reset and Channel Switching Routines */
1108 /****************************************/
1110 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
1112 struct ath_common *common = ath9k_hw_common(ah);
1115 ENABLE_REGWRITE_BUFFER(ah);
1118 * set AHB_MODE not to do cacheline prefetches
1120 if (!AR_SREV_9300_20_OR_LATER(ah))
1121 REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
1124 * let mac dma reads be in 128 byte chunks
1126 REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK);
1128 REGWRITE_BUFFER_FLUSH(ah);
1131 * Restore TX Trigger Level to its pre-reset value.
1132 * The initial value depends on whether aggregation is enabled, and is
1133 * adjusted whenever underruns are detected.
1135 if (!AR_SREV_9300_20_OR_LATER(ah))
1136 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
1138 ENABLE_REGWRITE_BUFFER(ah);
1141 * let mac dma writes be in 128 byte chunks
1143 REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK);
1146 * Setup receive FIFO threshold to hold off TX activities
1148 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
1150 if (AR_SREV_9300_20_OR_LATER(ah)) {
1151 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
1152 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
1154 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
1155 ah->caps.rx_status_len);
1159 * reduce the number of usable entries in PCU TXBUF to avoid
1160 * wrap around issues.
1162 if (AR_SREV_9285(ah)) {
1163 /* For AR9285 the number of Fifos are reduced to half.
1164 * So set the usable tx buf size also to half to
1165 * avoid data/delimiter underruns
1167 txbuf_size = AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE;
1168 } else if (AR_SREV_9340_13_OR_LATER(ah)) {
1169 /* Uses fewer entries for AR934x v1.3+ to prevent rx overruns */
1170 txbuf_size = AR_9340_PCU_TXBUF_CTRL_USABLE_SIZE;
1172 txbuf_size = AR_PCU_TXBUF_CTRL_USABLE_SIZE;
1175 if (!AR_SREV_9271(ah))
1176 REG_WRITE(ah, AR_PCU_TXBUF_CTRL, txbuf_size);
1178 REGWRITE_BUFFER_FLUSH(ah);
1180 if (AR_SREV_9300_20_OR_LATER(ah))
1181 ath9k_hw_reset_txstatus_ring(ah);
1184 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
1186 u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC;
1187 u32 set = AR_STA_ID1_KSRCH_MODE;
1190 case NL80211_IFTYPE_ADHOC:
1191 if (!AR_SREV_9340_13(ah)) {
1192 set |= AR_STA_ID1_ADHOC;
1193 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1197 case NL80211_IFTYPE_MESH_POINT:
1198 case NL80211_IFTYPE_AP:
1199 set |= AR_STA_ID1_STA_AP;
1201 case NL80211_IFTYPE_STATION:
1202 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1205 if (!ah->is_monitoring)
1209 REG_RMW(ah, AR_STA_ID1, set, mask);
1212 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
1213 u32 *coef_mantissa, u32 *coef_exponent)
1215 u32 coef_exp, coef_man;
1217 for (coef_exp = 31; coef_exp > 0; coef_exp--)
1218 if ((coef_scaled >> coef_exp) & 0x1)
1221 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1223 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1225 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1226 *coef_exponent = coef_exp - 16;
1230 * call external reset function to reset WMAC if:
1231 * - doing a cold reset
1232 * - we have pending frames in the TX queues.
1234 static bool ath9k_hw_ar9330_reset_war(struct ath_hw *ah, int type)
1238 for (i = 0; i < AR_NUM_QCU; i++) {
1239 npend = ath9k_hw_numtxpending(ah, i);
1244 if (ah->external_reset &&
1245 (npend || type == ATH9K_RESET_COLD)) {
1248 ath_dbg(ath9k_hw_common(ah), RESET,
1249 "reset MAC via external reset\n");
1251 reset_err = ah->external_reset();
1253 ath_err(ath9k_hw_common(ah),
1254 "External reset failed, err=%d\n",
1259 REG_WRITE(ah, AR_RTC_RESET, 1);
1265 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1270 if (AR_SREV_9100(ah)) {
1271 REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK,
1272 AR_RTC_DERIVED_CLK_PERIOD, 1);
1273 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1276 ENABLE_REGWRITE_BUFFER(ah);
1278 if (AR_SREV_9300_20_OR_LATER(ah)) {
1279 REG_WRITE(ah, AR_WA, ah->WARegVal);
1283 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1284 AR_RTC_FORCE_WAKE_ON_INT);
1286 if (AR_SREV_9100(ah)) {
1287 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1288 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1290 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1291 if (AR_SREV_9340(ah))
1292 tmpReg &= AR9340_INTR_SYNC_LOCAL_TIMEOUT;
1294 tmpReg &= AR_INTR_SYNC_LOCAL_TIMEOUT |
1295 AR_INTR_SYNC_RADM_CPL_TIMEOUT;
1299 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1302 if (!AR_SREV_9300_20_OR_LATER(ah))
1304 REG_WRITE(ah, AR_RC, val);
1306 } else if (!AR_SREV_9300_20_OR_LATER(ah))
1307 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1309 rst_flags = AR_RTC_RC_MAC_WARM;
1310 if (type == ATH9K_RESET_COLD)
1311 rst_flags |= AR_RTC_RC_MAC_COLD;
1314 if (AR_SREV_9330(ah)) {
1315 if (!ath9k_hw_ar9330_reset_war(ah, type))
1319 if (ath9k_hw_mci_is_enabled(ah))
1320 ar9003_mci_check_gpm_offset(ah);
1322 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1324 REGWRITE_BUFFER_FLUSH(ah);
1326 if (AR_SREV_9300_20_OR_LATER(ah))
1328 else if (AR_SREV_9100(ah))
1333 REG_WRITE(ah, AR_RTC_RC, 0);
1334 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1335 ath_dbg(ath9k_hw_common(ah), RESET, "RTC stuck in MAC reset\n");
1339 if (!AR_SREV_9100(ah))
1340 REG_WRITE(ah, AR_RC, 0);
1342 if (AR_SREV_9100(ah))
1348 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1350 ENABLE_REGWRITE_BUFFER(ah);
1352 if (AR_SREV_9300_20_OR_LATER(ah)) {
1353 REG_WRITE(ah, AR_WA, ah->WARegVal);
1357 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1358 AR_RTC_FORCE_WAKE_ON_INT);
1360 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1361 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1363 REG_WRITE(ah, AR_RTC_RESET, 0);
1365 REGWRITE_BUFFER_FLUSH(ah);
1369 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1370 REG_WRITE(ah, AR_RC, 0);
1372 REG_WRITE(ah, AR_RTC_RESET, 1);
1374 if (!ath9k_hw_wait(ah,
1379 ath_dbg(ath9k_hw_common(ah), RESET, "RTC not waking up\n");
1383 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1386 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1390 if (AR_SREV_9300_20_OR_LATER(ah)) {
1391 REG_WRITE(ah, AR_WA, ah->WARegVal);
1395 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1396 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1398 if (!ah->reset_power_on)
1399 type = ATH9K_RESET_POWER_ON;
1402 case ATH9K_RESET_POWER_ON:
1403 ret = ath9k_hw_set_reset_power_on(ah);
1405 ah->reset_power_on = true;
1407 case ATH9K_RESET_WARM:
1408 case ATH9K_RESET_COLD:
1409 ret = ath9k_hw_set_reset(ah, type);
1418 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1419 struct ath9k_channel *chan)
1421 int reset_type = ATH9K_RESET_WARM;
1423 if (AR_SREV_9280(ah)) {
1424 if (ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1425 reset_type = ATH9K_RESET_POWER_ON;
1427 reset_type = ATH9K_RESET_COLD;
1428 } else if (ah->chip_fullsleep || REG_READ(ah, AR_Q_TXE) ||
1429 (REG_READ(ah, AR_CR) & AR_CR_RXE))
1430 reset_type = ATH9K_RESET_COLD;
1432 if (!ath9k_hw_set_reset_reg(ah, reset_type))
1435 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1438 ah->chip_fullsleep = false;
1440 if (AR_SREV_9330(ah))
1441 ar9003_hw_internal_regulator_apply(ah);
1442 ath9k_hw_init_pll(ah, chan);
1447 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1448 struct ath9k_channel *chan)
1450 struct ath_common *common = ath9k_hw_common(ah);
1451 struct ath9k_hw_capabilities *pCap = &ah->caps;
1452 bool band_switch = false, mode_diff = false;
1453 u8 ini_reloaded = 0;
1457 if (pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) {
1458 u32 flags_diff = chan->channelFlags ^ ah->curchan->channelFlags;
1459 band_switch = !!(flags_diff & CHANNEL_5GHZ);
1460 mode_diff = !!(flags_diff & ~CHANNEL_HT);
1463 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1464 if (ath9k_hw_numtxpending(ah, qnum)) {
1465 ath_dbg(common, QUEUE,
1466 "Transmit frames pending on queue %d\n", qnum);
1471 if (!ath9k_hw_rfbus_req(ah)) {
1472 ath_err(common, "Could not kill baseband RX\n");
1476 if (band_switch || mode_diff) {
1477 ath9k_hw_mark_phy_inactive(ah);
1481 ath9k_hw_init_pll(ah, chan);
1483 if (ath9k_hw_fast_chan_change(ah, chan, &ini_reloaded)) {
1484 ath_err(common, "Failed to do fast channel change\n");
1489 ath9k_hw_set_channel_regs(ah, chan);
1491 r = ath9k_hw_rf_set_freq(ah, chan);
1493 ath_err(common, "Failed to set channel\n");
1496 ath9k_hw_set_clockrate(ah);
1497 ath9k_hw_apply_txpower(ah, chan, false);
1499 ath9k_hw_set_delta_slope(ah, chan);
1500 ath9k_hw_spur_mitigate_freq(ah, chan);
1502 if (band_switch || ini_reloaded)
1503 ah->eep_ops->set_board_values(ah, chan);
1505 ath9k_hw_init_bb(ah, chan);
1506 ath9k_hw_rfbus_done(ah);
1508 if (band_switch || ini_reloaded) {
1509 ah->ah_flags |= AH_FASTCC;
1510 ath9k_hw_init_cal(ah, chan);
1511 ah->ah_flags &= ~AH_FASTCC;
1517 static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
1519 u32 gpio_mask = ah->gpio_mask;
1522 for (i = 0; gpio_mask; i++, gpio_mask >>= 1) {
1523 if (!(gpio_mask & 1))
1526 ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
1527 ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
1531 void ath9k_hw_check_nav(struct ath_hw *ah)
1533 struct ath_common *common = ath9k_hw_common(ah);
1536 val = REG_READ(ah, AR_NAV);
1537 if (val != 0xdeadbeef && val > 0x7fff) {
1538 ath_dbg(common, BSTUCK, "Abnormal NAV: 0x%x\n", val);
1539 REG_WRITE(ah, AR_NAV, 0);
1542 EXPORT_SYMBOL(ath9k_hw_check_nav);
1544 bool ath9k_hw_check_alive(struct ath_hw *ah)
1549 if (AR_SREV_9300(ah))
1550 return !ath9k_hw_detect_mac_hang(ah);
1552 if (AR_SREV_9285_12_OR_LATER(ah))
1555 last_val = REG_READ(ah, AR_OBS_BUS_1);
1557 reg = REG_READ(ah, AR_OBS_BUS_1);
1558 if (reg != last_val)
1563 if ((reg & 0x7E7FFFEF) == 0x00702400)
1566 switch (reg & 0x7E000B00) {
1574 } while (count-- > 0);
1578 EXPORT_SYMBOL(ath9k_hw_check_alive);
1580 static void ath9k_hw_init_mfp(struct ath_hw *ah)
1582 /* Setup MFP options for CCMP */
1583 if (AR_SREV_9280_20_OR_LATER(ah)) {
1584 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1585 * frames when constructing CCMP AAD. */
1586 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1588 if (AR_SREV_9271(ah) || AR_DEVID_7010(ah))
1589 ah->sw_mgmt_crypto_tx = true;
1591 ah->sw_mgmt_crypto_tx = false;
1592 ah->sw_mgmt_crypto_rx = false;
1593 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1594 /* Disable hardware crypto for management frames */
1595 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1596 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1597 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1598 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1599 ah->sw_mgmt_crypto_tx = true;
1600 ah->sw_mgmt_crypto_rx = true;
1602 ah->sw_mgmt_crypto_tx = true;
1603 ah->sw_mgmt_crypto_rx = true;
1607 static void ath9k_hw_reset_opmode(struct ath_hw *ah,
1608 u32 macStaId1, u32 saveDefAntenna)
1610 struct ath_common *common = ath9k_hw_common(ah);
1612 ENABLE_REGWRITE_BUFFER(ah);
1614 REG_RMW(ah, AR_STA_ID1, macStaId1
1615 | AR_STA_ID1_RTS_USE_DEF
1616 | ah->sta_id1_defaults,
1617 ~AR_STA_ID1_SADH_MASK);
1618 ath_hw_setbssidmask(common);
1619 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1620 ath9k_hw_write_associd(ah);
1621 REG_WRITE(ah, AR_ISR, ~0);
1622 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1624 REGWRITE_BUFFER_FLUSH(ah);
1626 ath9k_hw_set_operating_mode(ah, ah->opmode);
1629 static void ath9k_hw_init_queues(struct ath_hw *ah)
1633 ENABLE_REGWRITE_BUFFER(ah);
1635 for (i = 0; i < AR_NUM_DCU; i++)
1636 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1638 REGWRITE_BUFFER_FLUSH(ah);
1641 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
1642 ath9k_hw_resettxqueue(ah, i);
1646 * For big endian systems turn on swapping for descriptors
1648 static void ath9k_hw_init_desc(struct ath_hw *ah)
1650 struct ath_common *common = ath9k_hw_common(ah);
1652 if (AR_SREV_9100(ah)) {
1654 mask = REG_READ(ah, AR_CFG);
1655 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1656 ath_dbg(common, RESET, "CFG Byte Swap Set 0x%x\n",
1659 mask = INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1660 REG_WRITE(ah, AR_CFG, mask);
1661 ath_dbg(common, RESET, "Setting CFG 0x%x\n",
1662 REG_READ(ah, AR_CFG));
1665 if (common->bus_ops->ath_bus_type == ATH_USB) {
1666 /* Configure AR9271 target WLAN */
1667 if (AR_SREV_9271(ah))
1668 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1670 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1673 else if (AR_SREV_9330(ah) || AR_SREV_9340(ah) ||
1674 AR_SREV_9550(ah) || AR_SREV_9531(ah))
1675 REG_RMW(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB, 0);
1677 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1683 * Fast channel change:
1684 * (Change synthesizer based on channel freq without resetting chip)
1686 static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan)
1688 struct ath_common *common = ath9k_hw_common(ah);
1689 struct ath9k_hw_capabilities *pCap = &ah->caps;
1692 if (AR_SREV_9280(ah) && common->bus_ops->ath_bus_type == ATH_PCI)
1695 if (ah->chip_fullsleep)
1701 if (chan->channel == ah->curchan->channel)
1704 if ((ah->curchan->channelFlags | chan->channelFlags) &
1705 (CHANNEL_HALF | CHANNEL_QUARTER))
1709 * If cross-band fcc is not supoprted, bail out if channelFlags differ.
1711 if (!(pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) &&
1712 ((chan->channelFlags ^ ah->curchan->channelFlags) & ~CHANNEL_HT))
1715 if (!ath9k_hw_check_alive(ah))
1719 * For AR9462, make sure that calibration data for
1720 * re-using are present.
1722 if (AR_SREV_9462(ah) && (ah->caldata &&
1723 (!test_bit(TXIQCAL_DONE, &ah->caldata->cal_flags) ||
1724 !test_bit(TXCLCAL_DONE, &ah->caldata->cal_flags) ||
1725 !test_bit(RTT_DONE, &ah->caldata->cal_flags))))
1728 ath_dbg(common, RESET, "FastChannelChange for %d -> %d\n",
1729 ah->curchan->channel, chan->channel);
1731 ret = ath9k_hw_channel_change(ah, chan);
1735 if (ath9k_hw_mci_is_enabled(ah))
1736 ar9003_mci_2g5g_switch(ah, false);
1738 ath9k_hw_loadnf(ah, ah->curchan);
1739 ath9k_hw_start_nfcal(ah, true);
1741 if (AR_SREV_9271(ah))
1742 ar9002_hw_load_ani_reg(ah, chan);
1749 u32 ath9k_hw_get_tsf_offset(struct timespec *last, struct timespec *cur)
1755 getrawmonotonic(&ts);
1759 usec = cur->tv_sec * 1000000ULL + cur->tv_nsec / 1000;
1760 usec -= last->tv_sec * 1000000ULL + last->tv_nsec / 1000;
1764 EXPORT_SYMBOL(ath9k_hw_get_tsf_offset);
1766 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1767 struct ath9k_hw_cal_data *caldata, bool fastcc)
1769 struct ath_common *common = ath9k_hw_common(ah);
1776 bool start_mci_reset = false;
1777 bool save_fullsleep = ah->chip_fullsleep;
1779 if (ath9k_hw_mci_is_enabled(ah)) {
1780 start_mci_reset = ar9003_mci_start_reset(ah, chan);
1781 if (start_mci_reset)
1785 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1788 if (ah->curchan && !ah->chip_fullsleep)
1789 ath9k_hw_getnf(ah, ah->curchan);
1791 ah->caldata = caldata;
1792 if (caldata && (chan->channel != caldata->channel ||
1793 chan->channelFlags != caldata->channelFlags)) {
1794 /* Operating channel changed, reset channel calibration data */
1795 memset(caldata, 0, sizeof(*caldata));
1796 ath9k_init_nfcal_hist_buffer(ah, chan);
1797 } else if (caldata) {
1798 clear_bit(PAPRD_PACKET_SENT, &caldata->cal_flags);
1800 ah->noise = ath9k_hw_getchan_noise(ah, chan, chan->noisefloor);
1803 r = ath9k_hw_do_fastcc(ah, chan);
1808 if (ath9k_hw_mci_is_enabled(ah))
1809 ar9003_mci_stop_bt(ah, save_fullsleep);
1811 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1812 if (saveDefAntenna == 0)
1815 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1817 /* Save TSF before chip reset, a cold reset clears it */
1818 tsf = ath9k_hw_gettsf64(ah);
1819 usec = ktime_to_us(ktime_get_raw());
1821 saveLedState = REG_READ(ah, AR_CFG_LED) &
1822 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1823 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1825 ath9k_hw_mark_phy_inactive(ah);
1827 ah->paprd_table_write_done = false;
1829 /* Only required on the first reset */
1830 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1832 AR9271_RESET_POWER_DOWN_CONTROL,
1833 AR9271_RADIO_RF_RST);
1837 if (!ath9k_hw_chip_reset(ah, chan)) {
1838 ath_err(common, "Chip reset failed\n");
1842 /* Only required on the first reset */
1843 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1844 ah->htc_reset_init = false;
1846 AR9271_RESET_POWER_DOWN_CONTROL,
1847 AR9271_GATE_MAC_CTL);
1852 usec = ktime_to_us(ktime_get_raw()) - usec;
1853 ath9k_hw_settsf64(ah, tsf + usec);
1855 if (AR_SREV_9280_20_OR_LATER(ah))
1856 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1858 if (!AR_SREV_9300_20_OR_LATER(ah))
1859 ar9002_hw_enable_async_fifo(ah);
1861 r = ath9k_hw_process_ini(ah, chan);
1865 ath9k_hw_set_rfmode(ah, chan);
1867 if (ath9k_hw_mci_is_enabled(ah))
1868 ar9003_mci_reset(ah, false, IS_CHAN_2GHZ(chan), save_fullsleep);
1871 * Some AR91xx SoC devices frequently fail to accept TSF writes
1872 * right after the chip reset. When that happens, write a new
1873 * value after the initvals have been applied, with an offset
1874 * based on measured time difference
1876 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1878 ath9k_hw_settsf64(ah, tsf);
1881 ath9k_hw_init_mfp(ah);
1883 ath9k_hw_set_delta_slope(ah, chan);
1884 ath9k_hw_spur_mitigate_freq(ah, chan);
1885 ah->eep_ops->set_board_values(ah, chan);
1887 ath9k_hw_reset_opmode(ah, macStaId1, saveDefAntenna);
1889 r = ath9k_hw_rf_set_freq(ah, chan);
1893 ath9k_hw_set_clockrate(ah);
1895 ath9k_hw_init_queues(ah);
1896 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1897 ath9k_hw_ani_cache_ini_regs(ah);
1898 ath9k_hw_init_qos(ah);
1900 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1901 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
1903 ath9k_hw_init_global_settings(ah);
1905 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1906 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
1907 AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
1908 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
1909 AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
1910 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1911 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
1914 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
1916 ath9k_hw_set_dma(ah);
1918 if (!ath9k_hw_mci_is_enabled(ah))
1919 REG_WRITE(ah, AR_OBS, 8);
1921 if (ah->config.rx_intr_mitigation) {
1922 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, ah->config.rimt_last);
1923 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, ah->config.rimt_first);
1926 if (ah->config.tx_intr_mitigation) {
1927 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1928 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1931 ath9k_hw_init_bb(ah, chan);
1934 clear_bit(TXIQCAL_DONE, &caldata->cal_flags);
1935 clear_bit(TXCLCAL_DONE, &caldata->cal_flags);
1937 if (!ath9k_hw_init_cal(ah, chan))
1940 if (ath9k_hw_mci_is_enabled(ah) && ar9003_mci_end_reset(ah, chan, caldata))
1943 ENABLE_REGWRITE_BUFFER(ah);
1945 ath9k_hw_restore_chainmask(ah);
1946 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1948 REGWRITE_BUFFER_FLUSH(ah);
1950 ath9k_hw_gen_timer_start_tsf2(ah);
1952 ath9k_hw_init_desc(ah);
1954 if (ath9k_hw_btcoex_is_enabled(ah))
1955 ath9k_hw_btcoex_enable(ah);
1957 if (ath9k_hw_mci_is_enabled(ah))
1958 ar9003_mci_check_bt(ah);
1960 if (AR_SREV_9300_20_OR_LATER(ah)) {
1961 ath9k_hw_loadnf(ah, chan);
1962 ath9k_hw_start_nfcal(ah, true);
1965 if (AR_SREV_9300_20_OR_LATER(ah))
1966 ar9003_hw_bb_watchdog_config(ah);
1968 if (ah->config.hw_hang_checks & HW_PHYRESTART_CLC_WAR)
1969 ar9003_hw_disable_phy_restart(ah);
1971 ath9k_hw_apply_gpio_override(ah);
1973 if (AR_SREV_9565(ah) && common->bt_ant_diversity)
1974 REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON);
1976 if (ah->hw->conf.radar_enabled) {
1977 /* set HW specific DFS configuration */
1978 ah->radar_conf.ext_channel = IS_CHAN_HT40(chan);
1979 ath9k_hw_set_radar_params(ah);
1984 EXPORT_SYMBOL(ath9k_hw_reset);
1986 /******************************/
1987 /* Power Management (Chipset) */
1988 /******************************/
1991 * Notify Power Mgt is disabled in self-generated frames.
1992 * If requested, force chip to sleep.
1994 static void ath9k_set_power_sleep(struct ath_hw *ah)
1996 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1998 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
1999 REG_CLR_BIT(ah, AR_TIMER_MODE, 0xff);
2000 REG_CLR_BIT(ah, AR_NDP2_TIMER_MODE, 0xff);
2001 REG_CLR_BIT(ah, AR_SLP32_INC, 0xfffff);
2002 /* xxx Required for WLAN only case ? */
2003 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, 0);
2008 * Clear the RTC force wake bit to allow the
2009 * mac to go to sleep.
2011 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
2013 if (ath9k_hw_mci_is_enabled(ah))
2016 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
2017 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
2019 /* Shutdown chip. Active low */
2020 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah)) {
2021 REG_CLR_BIT(ah, AR_RTC_RESET, AR_RTC_RESET_EN);
2025 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
2026 if (AR_SREV_9300_20_OR_LATER(ah))
2027 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
2031 * Notify Power Management is enabled in self-generating
2032 * frames. If request, set power mode of chip to
2033 * auto/normal. Duration in units of 128us (1/8 TU).
2035 static void ath9k_set_power_network_sleep(struct ath_hw *ah)
2037 struct ath9k_hw_capabilities *pCap = &ah->caps;
2039 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2041 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
2042 /* Set WakeOnInterrupt bit; clear ForceWake bit */
2043 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
2044 AR_RTC_FORCE_WAKE_ON_INT);
2047 /* When chip goes into network sleep, it could be waken
2048 * up by MCI_INT interrupt caused by BT's HW messages
2049 * (LNA_xxx, CONT_xxx) which chould be in a very fast
2050 * rate (~100us). This will cause chip to leave and
2051 * re-enter network sleep mode frequently, which in
2052 * consequence will have WLAN MCI HW to generate lots of
2053 * SYS_WAKING and SYS_SLEEPING messages which will make
2054 * BT CPU to busy to process.
2056 if (ath9k_hw_mci_is_enabled(ah))
2057 REG_CLR_BIT(ah, AR_MCI_INTERRUPT_RX_MSG_EN,
2058 AR_MCI_INTERRUPT_RX_HW_MSG_MASK);
2060 * Clear the RTC force wake bit to allow the
2061 * mac to go to sleep.
2063 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
2065 if (ath9k_hw_mci_is_enabled(ah))
2069 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
2070 if (AR_SREV_9300_20_OR_LATER(ah))
2071 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
2074 static bool ath9k_hw_set_power_awake(struct ath_hw *ah)
2079 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
2080 if (AR_SREV_9300_20_OR_LATER(ah)) {
2081 REG_WRITE(ah, AR_WA, ah->WARegVal);
2085 if ((REG_READ(ah, AR_RTC_STATUS) &
2086 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
2087 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
2090 if (!AR_SREV_9300_20_OR_LATER(ah))
2091 ath9k_hw_init_pll(ah, NULL);
2093 if (AR_SREV_9100(ah))
2094 REG_SET_BIT(ah, AR_RTC_RESET,
2097 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2098 AR_RTC_FORCE_WAKE_EN);
2099 if (AR_SREV_9100(ah))
2104 for (i = POWER_UP_TIME / 50; i > 0; i--) {
2105 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
2106 if (val == AR_RTC_STATUS_ON)
2109 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2110 AR_RTC_FORCE_WAKE_EN);
2113 ath_err(ath9k_hw_common(ah),
2114 "Failed to wakeup in %uus\n",
2115 POWER_UP_TIME / 20);
2119 if (ath9k_hw_mci_is_enabled(ah))
2120 ar9003_mci_set_power_awake(ah);
2122 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2127 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
2129 struct ath_common *common = ath9k_hw_common(ah);
2131 static const char *modes[] = {
2138 if (ah->power_mode == mode)
2141 ath_dbg(common, RESET, "%s -> %s\n",
2142 modes[ah->power_mode], modes[mode]);
2145 case ATH9K_PM_AWAKE:
2146 status = ath9k_hw_set_power_awake(ah);
2148 case ATH9K_PM_FULL_SLEEP:
2149 if (ath9k_hw_mci_is_enabled(ah))
2150 ar9003_mci_set_full_sleep(ah);
2152 ath9k_set_power_sleep(ah);
2153 ah->chip_fullsleep = true;
2155 case ATH9K_PM_NETWORK_SLEEP:
2156 ath9k_set_power_network_sleep(ah);
2159 ath_err(common, "Unknown power mode %u\n", mode);
2162 ah->power_mode = mode;
2165 * XXX: If this warning never comes up after a while then
2166 * simply keep the ATH_DBG_WARN_ON_ONCE() but make
2167 * ath9k_hw_setpower() return type void.
2170 if (!(ah->ah_flags & AH_UNPLUGGED))
2171 ATH_DBG_WARN_ON_ONCE(!status);
2175 EXPORT_SYMBOL(ath9k_hw_setpower);
2177 /*******************/
2178 /* Beacon Handling */
2179 /*******************/
2181 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
2185 ENABLE_REGWRITE_BUFFER(ah);
2187 switch (ah->opmode) {
2188 case NL80211_IFTYPE_ADHOC:
2189 REG_SET_BIT(ah, AR_TXCFG,
2190 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
2191 case NL80211_IFTYPE_MESH_POINT:
2192 case NL80211_IFTYPE_AP:
2193 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
2194 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
2195 TU_TO_USEC(ah->config.dma_beacon_response_time));
2196 REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
2197 TU_TO_USEC(ah->config.sw_beacon_response_time));
2199 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
2202 ath_dbg(ath9k_hw_common(ah), BEACON,
2203 "%s: unsupported opmode: %d\n", __func__, ah->opmode);
2208 REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
2209 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
2210 REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
2212 REGWRITE_BUFFER_FLUSH(ah);
2214 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
2216 EXPORT_SYMBOL(ath9k_hw_beaconinit);
2218 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
2219 const struct ath9k_beacon_state *bs)
2221 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
2222 struct ath9k_hw_capabilities *pCap = &ah->caps;
2223 struct ath_common *common = ath9k_hw_common(ah);
2225 ENABLE_REGWRITE_BUFFER(ah);
2227 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, bs->bs_nexttbtt);
2228 REG_WRITE(ah, AR_BEACON_PERIOD, bs->bs_intval);
2229 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, bs->bs_intval);
2231 REGWRITE_BUFFER_FLUSH(ah);
2233 REG_RMW_FIELD(ah, AR_RSSI_THR,
2234 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
2236 beaconintval = bs->bs_intval;
2238 if (bs->bs_sleepduration > beaconintval)
2239 beaconintval = bs->bs_sleepduration;
2241 dtimperiod = bs->bs_dtimperiod;
2242 if (bs->bs_sleepduration > dtimperiod)
2243 dtimperiod = bs->bs_sleepduration;
2245 if (beaconintval == dtimperiod)
2246 nextTbtt = bs->bs_nextdtim;
2248 nextTbtt = bs->bs_nexttbtt;
2250 ath_dbg(common, BEACON, "next DTIM %d\n", bs->bs_nextdtim);
2251 ath_dbg(common, BEACON, "next beacon %d\n", nextTbtt);
2252 ath_dbg(common, BEACON, "beacon period %d\n", beaconintval);
2253 ath_dbg(common, BEACON, "DTIM period %d\n", dtimperiod);
2255 ENABLE_REGWRITE_BUFFER(ah);
2257 REG_WRITE(ah, AR_NEXT_DTIM, bs->bs_nextdtim - SLEEP_SLOP);
2258 REG_WRITE(ah, AR_NEXT_TIM, nextTbtt - SLEEP_SLOP);
2260 REG_WRITE(ah, AR_SLEEP1,
2261 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
2262 | AR_SLEEP1_ASSUME_DTIM);
2264 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
2265 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
2267 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
2269 REG_WRITE(ah, AR_SLEEP2,
2270 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
2272 REG_WRITE(ah, AR_TIM_PERIOD, beaconintval);
2273 REG_WRITE(ah, AR_DTIM_PERIOD, dtimperiod);
2275 REGWRITE_BUFFER_FLUSH(ah);
2277 REG_SET_BIT(ah, AR_TIMER_MODE,
2278 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
2281 /* TSF Out of Range Threshold */
2282 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
2284 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
2286 /*******************/
2287 /* HW Capabilities */
2288 /*******************/
2290 static u8 fixup_chainmask(u8 chip_chainmask, u8 eeprom_chainmask)
2292 eeprom_chainmask &= chip_chainmask;
2293 if (eeprom_chainmask)
2294 return eeprom_chainmask;
2296 return chip_chainmask;
2300 * ath9k_hw_dfs_tested - checks if DFS has been tested with used chipset
2301 * @ah: the atheros hardware data structure
2303 * We enable DFS support upstream on chipsets which have passed a series
2304 * of tests. The testing requirements are going to be documented. Desired
2305 * test requirements are documented at:
2307 * http://wireless.kernel.org/en/users/Drivers/ath9k/dfs
2309 * Once a new chipset gets properly tested an individual commit can be used
2310 * to document the testing for DFS for that chipset.
2312 static bool ath9k_hw_dfs_tested(struct ath_hw *ah)
2315 switch (ah->hw_version.macVersion) {
2316 /* for temporary testing DFS with 9280 */
2317 case AR_SREV_VERSION_9280:
2318 /* AR9580 will likely be our first target to get testing on */
2319 case AR_SREV_VERSION_9580:
2326 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
2328 struct ath9k_hw_capabilities *pCap = &ah->caps;
2329 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2330 struct ath_common *common = ath9k_hw_common(ah);
2333 u8 ant_div_ctl1, tx_chainmask, rx_chainmask;
2335 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
2336 regulatory->current_rd = eeval;
2338 if (ah->opmode != NL80211_IFTYPE_AP &&
2339 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
2340 if (regulatory->current_rd == 0x64 ||
2341 regulatory->current_rd == 0x65)
2342 regulatory->current_rd += 5;
2343 else if (regulatory->current_rd == 0x41)
2344 regulatory->current_rd = 0x43;
2345 ath_dbg(common, REGULATORY, "regdomain mapped to 0x%x\n",
2346 regulatory->current_rd);
2349 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
2351 if (eeval & AR5416_OPFLAGS_11A) {
2352 if (ah->disable_5ghz)
2353 ath_warn(common, "disabling 5GHz band\n");
2355 pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
2358 if (eeval & AR5416_OPFLAGS_11G) {
2359 if (ah->disable_2ghz)
2360 ath_warn(common, "disabling 2GHz band\n");
2362 pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
2365 if ((pCap->hw_caps & (ATH9K_HW_CAP_2GHZ | ATH9K_HW_CAP_5GHZ)) == 0) {
2366 ath_err(common, "both bands are disabled\n");
2370 if (AR_SREV_9485(ah) ||
2374 pCap->chip_chainmask = 1;
2375 else if (!AR_SREV_9280_20_OR_LATER(ah))
2376 pCap->chip_chainmask = 7;
2377 else if (!AR_SREV_9300_20_OR_LATER(ah) ||
2381 pCap->chip_chainmask = 3;
2383 pCap->chip_chainmask = 7;
2385 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
2387 * For AR9271 we will temporarilly uses the rx chainmax as read from
2390 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
2391 !(eeval & AR5416_OPFLAGS_11A) &&
2392 !(AR_SREV_9271(ah)))
2393 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
2394 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
2395 else if (AR_SREV_9100(ah))
2396 pCap->rx_chainmask = 0x7;
2398 /* Use rx_chainmask from EEPROM. */
2399 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
2401 pCap->tx_chainmask = fixup_chainmask(pCap->chip_chainmask, pCap->tx_chainmask);
2402 pCap->rx_chainmask = fixup_chainmask(pCap->chip_chainmask, pCap->rx_chainmask);
2403 ah->txchainmask = pCap->tx_chainmask;
2404 ah->rxchainmask = pCap->rx_chainmask;
2406 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
2408 /* enable key search for every frame in an aggregate */
2409 if (AR_SREV_9300_20_OR_LATER(ah))
2410 ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
2412 common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
2414 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
2415 pCap->hw_caps |= ATH9K_HW_CAP_HT;
2417 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
2419 if (AR_SREV_9271(ah))
2420 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2421 else if (AR_DEVID_7010(ah))
2422 pCap->num_gpio_pins = AR7010_NUM_GPIO;
2423 else if (AR_SREV_9300_20_OR_LATER(ah))
2424 pCap->num_gpio_pins = AR9300_NUM_GPIO;
2425 else if (AR_SREV_9287_11_OR_LATER(ah))
2426 pCap->num_gpio_pins = AR9287_NUM_GPIO;
2427 else if (AR_SREV_9285_12_OR_LATER(ah))
2428 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2429 else if (AR_SREV_9280_20_OR_LATER(ah))
2430 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2432 pCap->num_gpio_pins = AR_NUM_GPIO;
2434 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah))
2435 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2437 pCap->rts_aggr_limit = (8 * 1024);
2439 #ifdef CONFIG_ATH9K_RFKILL
2440 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2441 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2443 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2444 ah->rfkill_polarity =
2445 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2447 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2450 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
2451 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2453 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2455 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2456 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2458 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2460 if (AR_SREV_9300_20_OR_LATER(ah)) {
2461 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
2462 if (!AR_SREV_9330(ah) && !AR_SREV_9485(ah) && !AR_SREV_9565(ah))
2463 pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
2465 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2466 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2467 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2468 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2469 pCap->txs_len = sizeof(struct ar9003_txs);
2471 pCap->tx_desc_len = sizeof(struct ath_desc);
2472 if (AR_SREV_9280_20(ah))
2473 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
2476 if (AR_SREV_9300_20_OR_LATER(ah))
2477 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2479 if (AR_SREV_9300_20_OR_LATER(ah))
2480 ah->ent_mode = REG_READ(ah, AR_ENT_OTP);
2482 if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah))
2483 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
2485 if (AR_SREV_9285(ah)) {
2486 if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) {
2488 ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2489 if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1)) {
2490 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2491 ath_info(common, "Enable LNA combining\n");
2496 if (AR_SREV_9300_20_OR_LATER(ah)) {
2497 if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
2498 pCap->hw_caps |= ATH9K_HW_CAP_APM;
2501 if (AR_SREV_9330(ah) || AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
2502 ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2503 if ((ant_div_ctl1 >> 0x6) == 0x3) {
2504 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2505 ath_info(common, "Enable LNA combining\n");
2509 if (ath9k_hw_dfs_tested(ah))
2510 pCap->hw_caps |= ATH9K_HW_CAP_DFS;
2512 tx_chainmask = pCap->tx_chainmask;
2513 rx_chainmask = pCap->rx_chainmask;
2514 while (tx_chainmask || rx_chainmask) {
2515 if (tx_chainmask & BIT(0))
2516 pCap->max_txchains++;
2517 if (rx_chainmask & BIT(0))
2518 pCap->max_rxchains++;
2524 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
2525 if (!(ah->ent_mode & AR_ENT_OTP_49GHZ_DISABLE))
2526 pCap->hw_caps |= ATH9K_HW_CAP_MCI;
2528 if (AR_SREV_9462_20_OR_LATER(ah))
2529 pCap->hw_caps |= ATH9K_HW_CAP_RTT;
2532 if (AR_SREV_9462(ah))
2533 pCap->hw_caps |= ATH9K_HW_WOW_DEVICE_CAPABLE;
2535 if (AR_SREV_9300_20_OR_LATER(ah) &&
2536 ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
2537 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
2542 /****************************/
2543 /* GPIO / RFKILL / Antennae */
2544 /****************************/
2546 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2550 u32 gpio_shift, tmp;
2553 addr = AR_GPIO_OUTPUT_MUX3;
2555 addr = AR_GPIO_OUTPUT_MUX2;
2557 addr = AR_GPIO_OUTPUT_MUX1;
2559 gpio_shift = (gpio % 6) * 5;
2561 if (AR_SREV_9280_20_OR_LATER(ah)
2562 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2563 REG_RMW(ah, addr, (type << gpio_shift),
2564 (0x1f << gpio_shift));
2566 tmp = REG_READ(ah, addr);
2567 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2568 tmp &= ~(0x1f << gpio_shift);
2569 tmp |= (type << gpio_shift);
2570 REG_WRITE(ah, addr, tmp);
2574 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2578 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2580 if (AR_DEVID_7010(ah)) {
2582 REG_RMW(ah, AR7010_GPIO_OE,
2583 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2584 (AR7010_GPIO_OE_MASK << gpio_shift));
2588 gpio_shift = gpio << 1;
2591 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2592 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2594 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2596 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2598 #define MS_REG_READ(x, y) \
2599 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2601 if (gpio >= ah->caps.num_gpio_pins)
2604 if (AR_DEVID_7010(ah)) {
2606 val = REG_READ(ah, AR7010_GPIO_IN);
2607 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2608 } else if (AR_SREV_9300_20_OR_LATER(ah))
2609 return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
2610 AR_GPIO_BIT(gpio)) != 0;
2611 else if (AR_SREV_9271(ah))
2612 return MS_REG_READ(AR9271, gpio) != 0;
2613 else if (AR_SREV_9287_11_OR_LATER(ah))
2614 return MS_REG_READ(AR9287, gpio) != 0;
2615 else if (AR_SREV_9285_12_OR_LATER(ah))
2616 return MS_REG_READ(AR9285, gpio) != 0;
2617 else if (AR_SREV_9280_20_OR_LATER(ah))
2618 return MS_REG_READ(AR928X, gpio) != 0;
2620 return MS_REG_READ(AR, gpio) != 0;
2622 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2624 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2629 if (AR_DEVID_7010(ah)) {
2631 REG_RMW(ah, AR7010_GPIO_OE,
2632 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2633 (AR7010_GPIO_OE_MASK << gpio_shift));
2637 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2638 gpio_shift = 2 * gpio;
2641 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2642 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2644 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2646 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2648 if (AR_DEVID_7010(ah)) {
2650 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2655 if (AR_SREV_9271(ah))
2658 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2661 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2663 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2665 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2667 EXPORT_SYMBOL(ath9k_hw_setantenna);
2669 /*********************/
2670 /* General Operation */
2671 /*********************/
2673 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2675 u32 bits = REG_READ(ah, AR_RX_FILTER);
2676 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2678 if (phybits & AR_PHY_ERR_RADAR)
2679 bits |= ATH9K_RX_FILTER_PHYRADAR;
2680 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2681 bits |= ATH9K_RX_FILTER_PHYERR;
2685 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2687 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2691 ENABLE_REGWRITE_BUFFER(ah);
2693 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
2694 bits |= ATH9K_RX_FILTER_CONTROL_WRAPPER;
2696 REG_WRITE(ah, AR_RX_FILTER, bits);
2699 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2700 phybits |= AR_PHY_ERR_RADAR;
2701 if (bits & ATH9K_RX_FILTER_PHYERR)
2702 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2703 REG_WRITE(ah, AR_PHY_ERR, phybits);
2706 REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2708 REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2710 REGWRITE_BUFFER_FLUSH(ah);
2712 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2714 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2716 if (ath9k_hw_mci_is_enabled(ah))
2717 ar9003_mci_bt_gain_ctrl(ah);
2719 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2722 ath9k_hw_init_pll(ah, NULL);
2723 ah->htc_reset_init = true;
2726 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2728 bool ath9k_hw_disable(struct ath_hw *ah)
2730 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2733 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2736 ath9k_hw_init_pll(ah, NULL);
2739 EXPORT_SYMBOL(ath9k_hw_disable);
2741 static int get_antenna_gain(struct ath_hw *ah, struct ath9k_channel *chan)
2743 enum eeprom_param gain_param;
2745 if (IS_CHAN_2GHZ(chan))
2746 gain_param = EEP_ANTENNA_GAIN_2G;
2748 gain_param = EEP_ANTENNA_GAIN_5G;
2750 return ah->eep_ops->get_eeprom(ah, gain_param);
2753 void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan,
2756 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2757 struct ieee80211_channel *channel;
2758 int chan_pwr, new_pwr, max_gain;
2759 int ant_gain, ant_reduction = 0;
2764 channel = chan->chan;
2765 chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER);
2766 new_pwr = min_t(int, chan_pwr, reg->power_limit);
2767 max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2;
2769 ant_gain = get_antenna_gain(ah, chan);
2770 if (ant_gain > max_gain)
2771 ant_reduction = ant_gain - max_gain;
2773 ah->eep_ops->set_txpower(ah, chan,
2774 ath9k_regd_get_ctl(reg, chan),
2775 ant_reduction, new_pwr, test);
2778 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
2780 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2781 struct ath9k_channel *chan = ah->curchan;
2782 struct ieee80211_channel *channel = chan->chan;
2784 reg->power_limit = min_t(u32, limit, MAX_RATE_POWER);
2786 channel->max_power = MAX_RATE_POWER / 2;
2788 ath9k_hw_apply_txpower(ah, chan, test);
2791 channel->max_power = DIV_ROUND_UP(reg->max_power_level, 2);
2793 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2795 void ath9k_hw_setopmode(struct ath_hw *ah)
2797 ath9k_hw_set_operating_mode(ah, ah->opmode);
2799 EXPORT_SYMBOL(ath9k_hw_setopmode);
2801 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2803 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2804 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2806 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2808 void ath9k_hw_write_associd(struct ath_hw *ah)
2810 struct ath_common *common = ath9k_hw_common(ah);
2812 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2813 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2814 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2816 EXPORT_SYMBOL(ath9k_hw_write_associd);
2818 #define ATH9K_MAX_TSF_READ 10
2820 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2822 u32 tsf_lower, tsf_upper1, tsf_upper2;
2825 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2826 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2827 tsf_lower = REG_READ(ah, AR_TSF_L32);
2828 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2829 if (tsf_upper2 == tsf_upper1)
2831 tsf_upper1 = tsf_upper2;
2834 WARN_ON( i == ATH9K_MAX_TSF_READ );
2836 return (((u64)tsf_upper1 << 32) | tsf_lower);
2838 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2840 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2842 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2843 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2845 EXPORT_SYMBOL(ath9k_hw_settsf64);
2847 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2849 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2850 AH_TSF_WRITE_TIMEOUT))
2851 ath_dbg(ath9k_hw_common(ah), RESET,
2852 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2854 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2856 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2858 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, bool set)
2861 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2863 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2865 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2867 void ath9k_hw_set11nmac2040(struct ath_hw *ah, struct ath9k_channel *chan)
2871 if (IS_CHAN_HT40(chan) && !ah->config.cwm_ignore_extcca)
2872 macmode = AR_2040_JOINED_RX_CLEAR;
2876 REG_WRITE(ah, AR_2040_MODE, macmode);
2879 /* HW Generic timers configuration */
2881 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2883 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2884 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2885 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2886 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2887 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2888 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2889 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2890 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2891 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2892 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2893 AR_NDP2_TIMER_MODE, 0x0002},
2894 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2895 AR_NDP2_TIMER_MODE, 0x0004},
2896 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2897 AR_NDP2_TIMER_MODE, 0x0008},
2898 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2899 AR_NDP2_TIMER_MODE, 0x0010},
2900 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2901 AR_NDP2_TIMER_MODE, 0x0020},
2902 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2903 AR_NDP2_TIMER_MODE, 0x0040},
2904 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2905 AR_NDP2_TIMER_MODE, 0x0080}
2908 /* HW generic timer primitives */
2910 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2912 return REG_READ(ah, AR_TSF_L32);
2914 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2916 void ath9k_hw_gen_timer_start_tsf2(struct ath_hw *ah)
2918 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2920 if (timer_table->tsf2_enabled) {
2921 REG_SET_BIT(ah, AR_DIRECT_CONNECT, AR_DC_AP_STA_EN);
2922 REG_SET_BIT(ah, AR_RESET_TSF, AR_RESET_TSF2_ONCE);
2926 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2927 void (*trigger)(void *),
2928 void (*overflow)(void *),
2932 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2933 struct ath_gen_timer *timer;
2935 if ((timer_index < AR_FIRST_NDP_TIMER) ||
2936 (timer_index >= ATH_MAX_GEN_TIMER))
2939 if ((timer_index > AR_FIRST_NDP_TIMER) &&
2940 !AR_SREV_9300_20_OR_LATER(ah))
2943 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2947 /* allocate a hardware generic timer slot */
2948 timer_table->timers[timer_index] = timer;
2949 timer->index = timer_index;
2950 timer->trigger = trigger;
2951 timer->overflow = overflow;
2954 if ((timer_index > AR_FIRST_NDP_TIMER) && !timer_table->tsf2_enabled) {
2955 timer_table->tsf2_enabled = true;
2956 ath9k_hw_gen_timer_start_tsf2(ah);
2961 EXPORT_SYMBOL(ath_gen_timer_alloc);
2963 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2964 struct ath_gen_timer *timer,
2968 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2971 timer_table->timer_mask |= BIT(timer->index);
2974 * Program generic timer registers
2976 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2978 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2980 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2981 gen_tmr_configuration[timer->index].mode_mask);
2983 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
2985 * Starting from AR9462, each generic timer can select which tsf
2986 * to use. But we still follow the old rule, 0 - 7 use tsf and
2989 if ((timer->index < AR_GEN_TIMER_BANK_1_LEN))
2990 REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
2991 (1 << timer->index));
2993 REG_SET_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
2994 (1 << timer->index));
2998 mask |= SM(AR_GENTMR_BIT(timer->index),
2999 AR_IMR_S5_GENTIMER_TRIG);
3000 if (timer->overflow)
3001 mask |= SM(AR_GENTMR_BIT(timer->index),
3002 AR_IMR_S5_GENTIMER_THRESH);
3004 REG_SET_BIT(ah, AR_IMR_S5, mask);
3006 if ((ah->imask & ATH9K_INT_GENTIMER) == 0) {
3007 ah->imask |= ATH9K_INT_GENTIMER;
3008 ath9k_hw_set_interrupts(ah);
3011 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
3013 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
3015 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3017 /* Clear generic timer enable bits. */
3018 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
3019 gen_tmr_configuration[timer->index].mode_mask);
3021 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
3023 * Need to switch back to TSF if it was using TSF2.
3025 if ((timer->index >= AR_GEN_TIMER_BANK_1_LEN)) {
3026 REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
3027 (1 << timer->index));
3031 /* Disable both trigger and thresh interrupt masks */
3032 REG_CLR_BIT(ah, AR_IMR_S5,
3033 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
3034 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
3036 timer_table->timer_mask &= ~BIT(timer->index);
3038 if (timer_table->timer_mask == 0) {
3039 ah->imask &= ~ATH9K_INT_GENTIMER;
3040 ath9k_hw_set_interrupts(ah);
3043 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
3045 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
3047 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3049 /* free the hardware generic timer slot */
3050 timer_table->timers[timer->index] = NULL;
3053 EXPORT_SYMBOL(ath_gen_timer_free);
3056 * Generic Timer Interrupts handling
3058 void ath_gen_timer_isr(struct ath_hw *ah)
3060 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3061 struct ath_gen_timer *timer;
3062 unsigned long trigger_mask, thresh_mask;
3065 /* get hardware generic timer interrupt status */
3066 trigger_mask = ah->intr_gen_timer_trigger;
3067 thresh_mask = ah->intr_gen_timer_thresh;
3068 trigger_mask &= timer_table->timer_mask;
3069 thresh_mask &= timer_table->timer_mask;
3071 for_each_set_bit(index, &thresh_mask, ARRAY_SIZE(timer_table->timers)) {
3072 timer = timer_table->timers[index];
3075 if (!timer->overflow)
3078 trigger_mask &= ~BIT(index);
3079 timer->overflow(timer->arg);
3082 for_each_set_bit(index, &trigger_mask, ARRAY_SIZE(timer_table->timers)) {
3083 timer = timer_table->timers[index];
3086 if (!timer->trigger)
3088 timer->trigger(timer->arg);
3091 EXPORT_SYMBOL(ath_gen_timer_isr);
3100 } ath_mac_bb_names[] = {
3101 /* Devices with external radios */
3102 { AR_SREV_VERSION_5416_PCI, "5416" },
3103 { AR_SREV_VERSION_5416_PCIE, "5418" },
3104 { AR_SREV_VERSION_9100, "9100" },
3105 { AR_SREV_VERSION_9160, "9160" },
3106 /* Single-chip solutions */
3107 { AR_SREV_VERSION_9280, "9280" },
3108 { AR_SREV_VERSION_9285, "9285" },
3109 { AR_SREV_VERSION_9287, "9287" },
3110 { AR_SREV_VERSION_9271, "9271" },
3111 { AR_SREV_VERSION_9300, "9300" },
3112 { AR_SREV_VERSION_9330, "9330" },
3113 { AR_SREV_VERSION_9340, "9340" },
3114 { AR_SREV_VERSION_9485, "9485" },
3115 { AR_SREV_VERSION_9462, "9462" },
3116 { AR_SREV_VERSION_9550, "9550" },
3117 { AR_SREV_VERSION_9565, "9565" },
3118 { AR_SREV_VERSION_9531, "9531" },
3121 /* For devices with external radios */
3125 } ath_rf_names[] = {
3127 { AR_RAD5133_SREV_MAJOR, "5133" },
3128 { AR_RAD5122_SREV_MAJOR, "5122" },
3129 { AR_RAD2133_SREV_MAJOR, "2133" },
3130 { AR_RAD2122_SREV_MAJOR, "2122" }
3134 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
3136 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
3140 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
3141 if (ath_mac_bb_names[i].version == mac_bb_version) {
3142 return ath_mac_bb_names[i].name;
3150 * Return the RF name. "????" is returned if the RF is unknown.
3151 * Used for devices with external radios.
3153 static const char *ath9k_hw_rf_name(u16 rf_version)
3157 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
3158 if (ath_rf_names[i].version == rf_version) {
3159 return ath_rf_names[i].name;
3166 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
3170 /* chipsets >= AR9280 are single-chip */
3171 if (AR_SREV_9280_20_OR_LATER(ah)) {
3172 used = scnprintf(hw_name, len,
3173 "Atheros AR%s Rev:%x",
3174 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3175 ah->hw_version.macRev);
3178 used = scnprintf(hw_name, len,
3179 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
3180 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3181 ah->hw_version.macRev,
3182 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev
3183 & AR_RADIO_SREV_MAJOR)),
3184 ah->hw_version.phyRev);
3187 hw_name[used] = '\0';
3189 EXPORT_SYMBOL(ath9k_hw_name);