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;
249 case AR9300_DEVID_QCA956X:
250 ah->hw_version.macVersion = AR_SREV_VERSION_9561;
253 val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
256 val = REG_READ(ah, AR_SREV);
257 ah->hw_version.macVersion =
258 (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
259 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
261 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
262 ah->is_pciexpress = true;
264 ah->is_pciexpress = (val &
265 AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
267 if (!AR_SREV_9100(ah))
268 ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
270 ah->hw_version.macRev = val & AR_SREV_REVISION;
272 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
273 ah->is_pciexpress = true;
277 /************************************/
278 /* HW Attach, Detach, Init Routines */
279 /************************************/
281 static void ath9k_hw_disablepcie(struct ath_hw *ah)
283 if (!AR_SREV_5416(ah))
286 REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
287 REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
288 REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
289 REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
290 REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
291 REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
292 REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
293 REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
294 REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
296 REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
299 /* This should work for all families including legacy */
300 static bool ath9k_hw_chip_test(struct ath_hw *ah)
302 struct ath_common *common = ath9k_hw_common(ah);
303 u32 regAddr[2] = { AR_STA_ID0 };
305 static const u32 patternData[4] = {
306 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999
310 if (!AR_SREV_9300_20_OR_LATER(ah)) {
312 regAddr[1] = AR_PHY_BASE + (8 << 2);
316 for (i = 0; i < loop_max; i++) {
317 u32 addr = regAddr[i];
320 regHold[i] = REG_READ(ah, addr);
321 for (j = 0; j < 0x100; j++) {
322 wrData = (j << 16) | j;
323 REG_WRITE(ah, addr, wrData);
324 rdData = REG_READ(ah, addr);
325 if (rdData != wrData) {
327 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
328 addr, wrData, rdData);
332 for (j = 0; j < 4; j++) {
333 wrData = patternData[j];
334 REG_WRITE(ah, addr, wrData);
335 rdData = REG_READ(ah, addr);
336 if (wrData != rdData) {
338 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
339 addr, wrData, rdData);
343 REG_WRITE(ah, regAddr[i], regHold[i]);
350 static void ath9k_hw_init_config(struct ath_hw *ah)
352 struct ath_common *common = ath9k_hw_common(ah);
354 ah->config.dma_beacon_response_time = 1;
355 ah->config.sw_beacon_response_time = 6;
356 ah->config.cwm_ignore_extcca = 0;
357 ah->config.analog_shiftreg = 1;
359 ah->config.rx_intr_mitigation = true;
361 if (AR_SREV_9300_20_OR_LATER(ah)) {
362 ah->config.rimt_last = 500;
363 ah->config.rimt_first = 2000;
365 ah->config.rimt_last = 250;
366 ah->config.rimt_first = 700;
370 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
371 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
372 * This means we use it for all AR5416 devices, and the few
373 * minor PCI AR9280 devices out there.
375 * Serialization is required because these devices do not handle
376 * well the case of two concurrent reads/writes due to the latency
377 * involved. During one read/write another read/write can be issued
378 * on another CPU while the previous read/write may still be working
379 * on our hardware, if we hit this case the hardware poops in a loop.
380 * We prevent this by serializing reads and writes.
382 * This issue is not present on PCI-Express devices or pre-AR5416
383 * devices (legacy, 802.11abg).
385 if (num_possible_cpus() > 1)
386 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
388 if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
389 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
390 ((AR_SREV_9160(ah) || AR_SREV_9280(ah) || AR_SREV_9287(ah)) &&
391 !ah->is_pciexpress)) {
392 ah->config.serialize_regmode = SER_REG_MODE_ON;
394 ah->config.serialize_regmode = SER_REG_MODE_OFF;
398 ath_dbg(common, RESET, "serialize_regmode is %d\n",
399 ah->config.serialize_regmode);
401 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
402 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1;
404 ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD;
407 static void ath9k_hw_init_defaults(struct ath_hw *ah)
409 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
411 regulatory->country_code = CTRY_DEFAULT;
412 regulatory->power_limit = MAX_RATE_POWER;
414 ah->hw_version.magic = AR5416_MAGIC;
415 ah->hw_version.subvendorid = 0;
417 ah->sta_id1_defaults = AR_STA_ID1_CRPT_MIC_ENABLE |
418 AR_STA_ID1_MCAST_KSRCH;
419 if (AR_SREV_9100(ah))
420 ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX;
422 ah->slottime = ATH9K_SLOT_TIME_9;
423 ah->globaltxtimeout = (u32) -1;
424 ah->power_mode = ATH9K_PM_UNDEFINED;
425 ah->htc_reset_init = true;
427 /* ar9002 does not support TPC for the moment */
428 ah->tpc_enabled = !!AR_SREV_9300_20_OR_LATER(ah);
430 ah->ani_function = ATH9K_ANI_ALL;
431 if (!AR_SREV_9300_20_OR_LATER(ah))
432 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
434 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
435 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
437 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
440 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
442 struct ath_common *common = ath9k_hw_common(ah);
446 static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
449 for (i = 0; i < 3; i++) {
450 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
452 common->macaddr[2 * i] = eeval >> 8;
453 common->macaddr[2 * i + 1] = eeval & 0xff;
455 if (!is_valid_ether_addr(common->macaddr)) {
457 "eeprom contains invalid mac address: %pM\n",
460 random_ether_addr(common->macaddr);
462 "random mac address will be used: %pM\n",
469 static int ath9k_hw_post_init(struct ath_hw *ah)
471 struct ath_common *common = ath9k_hw_common(ah);
474 if (common->bus_ops->ath_bus_type != ATH_USB) {
475 if (!ath9k_hw_chip_test(ah))
479 if (!AR_SREV_9300_20_OR_LATER(ah)) {
480 ecode = ar9002_hw_rf_claim(ah);
485 ecode = ath9k_hw_eeprom_init(ah);
489 ath_dbg(ath9k_hw_common(ah), CONFIG, "Eeprom VER: %d, REV: %d\n",
490 ah->eep_ops->get_eeprom_ver(ah),
491 ah->eep_ops->get_eeprom_rev(ah));
493 ath9k_hw_ani_init(ah);
496 * EEPROM needs to be initialized before we do this.
497 * This is required for regulatory compliance.
499 if (AR_SREV_9300_20_OR_LATER(ah)) {
500 u16 regdmn = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
501 if ((regdmn & 0xF0) == CTL_FCC) {
502 ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_FCC_2GHZ;
503 ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_FCC_5GHZ;
510 static int ath9k_hw_attach_ops(struct ath_hw *ah)
512 if (!AR_SREV_9300_20_OR_LATER(ah))
513 return ar9002_hw_attach_ops(ah);
515 ar9003_hw_attach_ops(ah);
519 /* Called for all hardware families */
520 static int __ath9k_hw_init(struct ath_hw *ah)
522 struct ath_common *common = ath9k_hw_common(ah);
525 ath9k_hw_read_revisions(ah);
527 switch (ah->hw_version.macVersion) {
528 case AR_SREV_VERSION_5416_PCI:
529 case AR_SREV_VERSION_5416_PCIE:
530 case AR_SREV_VERSION_9160:
531 case AR_SREV_VERSION_9100:
532 case AR_SREV_VERSION_9280:
533 case AR_SREV_VERSION_9285:
534 case AR_SREV_VERSION_9287:
535 case AR_SREV_VERSION_9271:
536 case AR_SREV_VERSION_9300:
537 case AR_SREV_VERSION_9330:
538 case AR_SREV_VERSION_9485:
539 case AR_SREV_VERSION_9340:
540 case AR_SREV_VERSION_9462:
541 case AR_SREV_VERSION_9550:
542 case AR_SREV_VERSION_9565:
543 case AR_SREV_VERSION_9531:
544 case AR_SREV_VERSION_9561:
548 "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
549 ah->hw_version.macVersion, ah->hw_version.macRev);
554 * Read back AR_WA into a permanent copy and set bits 14 and 17.
555 * We need to do this to avoid RMW of this register. We cannot
556 * read the reg when chip is asleep.
558 if (AR_SREV_9300_20_OR_LATER(ah)) {
559 ah->WARegVal = REG_READ(ah, AR_WA);
560 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
561 AR_WA_ASPM_TIMER_BASED_DISABLE);
564 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
565 ath_err(common, "Couldn't reset chip\n");
569 if (AR_SREV_9565(ah)) {
570 ah->WARegVal |= AR_WA_BIT22;
571 REG_WRITE(ah, AR_WA, ah->WARegVal);
574 ath9k_hw_init_defaults(ah);
575 ath9k_hw_init_config(ah);
577 r = ath9k_hw_attach_ops(ah);
581 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
582 ath_err(common, "Couldn't wakeup chip\n");
586 if (AR_SREV_9271(ah) || AR_SREV_9100(ah) || AR_SREV_9340(ah) ||
587 AR_SREV_9330(ah) || AR_SREV_9550(ah))
588 ah->is_pciexpress = false;
590 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
591 ath9k_hw_init_cal_settings(ah);
593 if (!ah->is_pciexpress)
594 ath9k_hw_disablepcie(ah);
596 r = ath9k_hw_post_init(ah);
600 ath9k_hw_init_mode_gain_regs(ah);
601 r = ath9k_hw_fill_cap_info(ah);
605 r = ath9k_hw_init_macaddr(ah);
607 ath_err(common, "Failed to initialize MAC address\n");
611 ath9k_hw_init_hang_checks(ah);
613 common->state = ATH_HW_INITIALIZED;
618 int ath9k_hw_init(struct ath_hw *ah)
621 struct ath_common *common = ath9k_hw_common(ah);
623 /* These are all the AR5008/AR9001/AR9002/AR9003 hardware family of chipsets */
624 switch (ah->hw_version.devid) {
625 case AR5416_DEVID_PCI:
626 case AR5416_DEVID_PCIE:
627 case AR5416_AR9100_DEVID:
628 case AR9160_DEVID_PCI:
629 case AR9280_DEVID_PCI:
630 case AR9280_DEVID_PCIE:
631 case AR9285_DEVID_PCIE:
632 case AR9287_DEVID_PCI:
633 case AR9287_DEVID_PCIE:
634 case AR2427_DEVID_PCIE:
635 case AR9300_DEVID_PCIE:
636 case AR9300_DEVID_AR9485_PCIE:
637 case AR9300_DEVID_AR9330:
638 case AR9300_DEVID_AR9340:
639 case AR9300_DEVID_QCA955X:
640 case AR9300_DEVID_AR9580:
641 case AR9300_DEVID_AR9462:
642 case AR9485_DEVID_AR1111:
643 case AR9300_DEVID_AR9565:
644 case AR9300_DEVID_AR953X:
645 case AR9300_DEVID_QCA956X:
648 if (common->bus_ops->ath_bus_type == ATH_USB)
650 ath_err(common, "Hardware device ID 0x%04x not supported\n",
651 ah->hw_version.devid);
655 ret = __ath9k_hw_init(ah);
658 "Unable to initialize hardware; initialization status: %d\n",
667 EXPORT_SYMBOL(ath9k_hw_init);
669 static void ath9k_hw_init_qos(struct ath_hw *ah)
671 ENABLE_REGWRITE_BUFFER(ah);
673 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
674 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
676 REG_WRITE(ah, AR_QOS_NO_ACK,
677 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
678 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
679 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
681 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
682 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
683 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
684 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
685 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
687 REGWRITE_BUFFER_FLUSH(ah);
690 u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
692 struct ath_common *common = ath9k_hw_common(ah);
695 REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
697 REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
699 while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0) {
703 if (WARN_ON_ONCE(i >= 100)) {
704 ath_err(common, "PLL4 meaurement not done\n");
711 return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
713 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
715 static void ath9k_hw_init_pll(struct ath_hw *ah,
716 struct ath9k_channel *chan)
720 pll = ath9k_hw_compute_pll_control(ah, chan);
722 if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
723 /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */
724 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
725 AR_CH0_BB_DPLL2_PLL_PWD, 0x1);
726 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
727 AR_CH0_DPLL2_KD, 0x40);
728 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
729 AR_CH0_DPLL2_KI, 0x4);
731 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
732 AR_CH0_BB_DPLL1_REFDIV, 0x5);
733 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
734 AR_CH0_BB_DPLL1_NINI, 0x58);
735 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
736 AR_CH0_BB_DPLL1_NFRAC, 0x0);
738 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
739 AR_CH0_BB_DPLL2_OUTDIV, 0x1);
740 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
741 AR_CH0_BB_DPLL2_LOCAL_PLL, 0x1);
742 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
743 AR_CH0_BB_DPLL2_EN_NEGTRIG, 0x1);
745 /* program BB PLL phase_shift to 0x6 */
746 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
747 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x6);
749 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
750 AR_CH0_BB_DPLL2_PLL_PWD, 0x0);
752 } else if (AR_SREV_9330(ah)) {
753 u32 ddr_dpll2, pll_control2, kd;
755 if (ah->is_clk_25mhz) {
756 ddr_dpll2 = 0x18e82f01;
757 pll_control2 = 0xe04a3d;
760 ddr_dpll2 = 0x19e82f01;
761 pll_control2 = 0x886666;
765 /* program DDR PLL ki and kd value */
766 REG_WRITE(ah, AR_CH0_DDR_DPLL2, ddr_dpll2);
768 /* program DDR PLL phase_shift */
769 REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3,
770 AR_CH0_DPLL3_PHASE_SHIFT, 0x1);
772 REG_WRITE(ah, AR_RTC_PLL_CONTROL,
773 pll | AR_RTC_9300_PLL_BYPASS);
776 /* program refdiv, nint, frac to RTC register */
777 REG_WRITE(ah, AR_RTC_PLL_CONTROL2, pll_control2);
779 /* program BB PLL kd and ki value */
780 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KD, kd);
781 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KI, 0x06);
783 /* program BB PLL phase_shift */
784 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
785 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x1);
786 } else if (AR_SREV_9340(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah)) {
787 u32 regval, pll2_divint, pll2_divfrac, refdiv;
789 REG_WRITE(ah, AR_RTC_PLL_CONTROL,
790 pll | AR_RTC_9300_SOC_PLL_BYPASS);
793 REG_SET_BIT(ah, AR_PHY_PLL_MODE, 0x1 << 16);
796 if (ah->is_clk_25mhz) {
797 if (AR_SREV_9531(ah)) {
799 pll2_divfrac = 0xa3d2;
803 pll2_divfrac = 0x1eb85;
807 if (AR_SREV_9340(ah)) {
814 AR_SREV_9531(ah) ? 0x26665 : 0x26666;
819 regval = REG_READ(ah, AR_PHY_PLL_MODE);
820 if (AR_SREV_9531(ah))
821 regval |= (0x1 << 22);
823 regval |= (0x1 << 16);
824 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
827 REG_WRITE(ah, AR_PHY_PLL_CONTROL, (refdiv << 27) |
828 (pll2_divint << 18) | pll2_divfrac);
831 regval = REG_READ(ah, AR_PHY_PLL_MODE);
832 if (AR_SREV_9340(ah))
833 regval = (regval & 0x80071fff) |
838 else if (AR_SREV_9531(ah))
839 regval = (regval & 0x01c00fff) |
846 regval = (regval & 0x80071fff) |
851 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
853 if (AR_SREV_9531(ah))
854 REG_WRITE(ah, AR_PHY_PLL_MODE,
855 REG_READ(ah, AR_PHY_PLL_MODE) & 0xffbfffff);
857 REG_WRITE(ah, AR_PHY_PLL_MODE,
858 REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff);
863 if (AR_SREV_9565(ah))
865 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
867 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
871 /* Switch the core clock for ar9271 to 117Mhz */
872 if (AR_SREV_9271(ah)) {
874 REG_WRITE(ah, 0x50040, 0x304);
877 udelay(RTC_PLL_SETTLE_DELAY);
879 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
882 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
883 enum nl80211_iftype opmode)
885 u32 sync_default = AR_INTR_SYNC_DEFAULT;
886 u32 imr_reg = AR_IMR_TXERR |
892 if (AR_SREV_9340(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah))
893 sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
895 if (AR_SREV_9300_20_OR_LATER(ah)) {
896 imr_reg |= AR_IMR_RXOK_HP;
897 if (ah->config.rx_intr_mitigation)
898 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
900 imr_reg |= AR_IMR_RXOK_LP;
903 if (ah->config.rx_intr_mitigation)
904 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
906 imr_reg |= AR_IMR_RXOK;
909 if (ah->config.tx_intr_mitigation)
910 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
912 imr_reg |= AR_IMR_TXOK;
914 ENABLE_REGWRITE_BUFFER(ah);
916 REG_WRITE(ah, AR_IMR, imr_reg);
917 ah->imrs2_reg |= AR_IMR_S2_GTT;
918 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
920 if (!AR_SREV_9100(ah)) {
921 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
922 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default);
923 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
926 REGWRITE_BUFFER_FLUSH(ah);
928 if (AR_SREV_9300_20_OR_LATER(ah)) {
929 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
930 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
931 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
932 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
936 static void ath9k_hw_set_sifs_time(struct ath_hw *ah, u32 us)
938 u32 val = ath9k_hw_mac_to_clks(ah, us - 2);
939 val = min(val, (u32) 0xFFFF);
940 REG_WRITE(ah, AR_D_GBL_IFS_SIFS, val);
943 void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
945 u32 val = ath9k_hw_mac_to_clks(ah, us);
946 val = min(val, (u32) 0xFFFF);
947 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
950 void ath9k_hw_set_ack_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_ACK));
954 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
957 void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
959 u32 val = ath9k_hw_mac_to_clks(ah, us);
960 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
961 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
964 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
967 ath_dbg(ath9k_hw_common(ah), XMIT, "bad global tx timeout %u\n",
969 ah->globaltxtimeout = (u32) -1;
972 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
973 ah->globaltxtimeout = tu;
978 void ath9k_hw_init_global_settings(struct ath_hw *ah)
980 struct ath_common *common = ath9k_hw_common(ah);
981 const struct ath9k_channel *chan = ah->curchan;
982 int acktimeout, ctstimeout, ack_offset = 0;
985 int rx_lat = 0, tx_lat = 0, eifs = 0;
988 ath_dbg(ath9k_hw_common(ah), RESET, "ah->misc_mode 0x%x\n",
994 if (ah->misc_mode != 0)
995 REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
997 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1003 if (IS_CHAN_5GHZ(chan))
1008 if (IS_CHAN_HALF_RATE(chan)) {
1012 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1018 } else if (IS_CHAN_QUARTER_RATE(chan)) {
1020 rx_lat = (rx_lat * 4) - 1;
1022 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1029 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1030 eifs = AR_D_GBL_IFS_EIFS_ASYNC_FIFO;
1031 reg = AR_USEC_ASYNC_FIFO;
1033 eifs = REG_READ(ah, AR_D_GBL_IFS_EIFS)/
1035 reg = REG_READ(ah, AR_USEC);
1037 rx_lat = MS(reg, AR_USEC_RX_LAT);
1038 tx_lat = MS(reg, AR_USEC_TX_LAT);
1040 slottime = ah->slottime;
1043 /* As defined by IEEE 802.11-2007 17.3.8.6 */
1044 slottime += 3 * ah->coverage_class;
1045 acktimeout = slottime + sifstime + ack_offset;
1046 ctstimeout = acktimeout;
1049 * Workaround for early ACK timeouts, add an offset to match the
1050 * initval's 64us ack timeout value. Use 48us for the CTS timeout.
1051 * This was initially only meant to work around an issue with delayed
1052 * BA frames in some implementations, but it has been found to fix ACK
1053 * timeout issues in other cases as well.
1055 if (IS_CHAN_2GHZ(chan) &&
1056 !IS_CHAN_HALF_RATE(chan) && !IS_CHAN_QUARTER_RATE(chan)) {
1057 acktimeout += 64 - sifstime - ah->slottime;
1058 ctstimeout += 48 - sifstime - ah->slottime;
1061 if (ah->dynack.enabled) {
1062 acktimeout = ah->dynack.ackto;
1063 ctstimeout = acktimeout;
1064 slottime = (acktimeout - 3) / 2;
1066 ah->dynack.ackto = acktimeout;
1069 ath9k_hw_set_sifs_time(ah, sifstime);
1070 ath9k_hw_setslottime(ah, slottime);
1071 ath9k_hw_set_ack_timeout(ah, acktimeout);
1072 ath9k_hw_set_cts_timeout(ah, ctstimeout);
1073 if (ah->globaltxtimeout != (u32) -1)
1074 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
1076 REG_WRITE(ah, AR_D_GBL_IFS_EIFS, ath9k_hw_mac_to_clks(ah, eifs));
1077 REG_RMW(ah, AR_USEC,
1078 (common->clockrate - 1) |
1079 SM(rx_lat, AR_USEC_RX_LAT) |
1080 SM(tx_lat, AR_USEC_TX_LAT),
1081 AR_USEC_TX_LAT | AR_USEC_RX_LAT | AR_USEC_USEC);
1084 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
1086 void ath9k_hw_deinit(struct ath_hw *ah)
1088 struct ath_common *common = ath9k_hw_common(ah);
1090 if (common->state < ATH_HW_INITIALIZED)
1093 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
1095 EXPORT_SYMBOL(ath9k_hw_deinit);
1101 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
1103 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
1105 if (IS_CHAN_2GHZ(chan))
1113 /****************************************/
1114 /* Reset and Channel Switching Routines */
1115 /****************************************/
1117 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
1119 struct ath_common *common = ath9k_hw_common(ah);
1122 ENABLE_REGWRITE_BUFFER(ah);
1125 * set AHB_MODE not to do cacheline prefetches
1127 if (!AR_SREV_9300_20_OR_LATER(ah))
1128 REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
1131 * let mac dma reads be in 128 byte chunks
1133 REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK);
1135 REGWRITE_BUFFER_FLUSH(ah);
1138 * Restore TX Trigger Level to its pre-reset value.
1139 * The initial value depends on whether aggregation is enabled, and is
1140 * adjusted whenever underruns are detected.
1142 if (!AR_SREV_9300_20_OR_LATER(ah))
1143 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
1145 ENABLE_REGWRITE_BUFFER(ah);
1148 * let mac dma writes be in 128 byte chunks
1150 REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK);
1153 * Setup receive FIFO threshold to hold off TX activities
1155 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
1157 if (AR_SREV_9300_20_OR_LATER(ah)) {
1158 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
1159 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
1161 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
1162 ah->caps.rx_status_len);
1166 * reduce the number of usable entries in PCU TXBUF to avoid
1167 * wrap around issues.
1169 if (AR_SREV_9285(ah)) {
1170 /* For AR9285 the number of Fifos are reduced to half.
1171 * So set the usable tx buf size also to half to
1172 * avoid data/delimiter underruns
1174 txbuf_size = AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE;
1175 } else if (AR_SREV_9340_13_OR_LATER(ah)) {
1176 /* Uses fewer entries for AR934x v1.3+ to prevent rx overruns */
1177 txbuf_size = AR_9340_PCU_TXBUF_CTRL_USABLE_SIZE;
1179 txbuf_size = AR_PCU_TXBUF_CTRL_USABLE_SIZE;
1182 if (!AR_SREV_9271(ah))
1183 REG_WRITE(ah, AR_PCU_TXBUF_CTRL, txbuf_size);
1185 REGWRITE_BUFFER_FLUSH(ah);
1187 if (AR_SREV_9300_20_OR_LATER(ah))
1188 ath9k_hw_reset_txstatus_ring(ah);
1191 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
1193 u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC;
1194 u32 set = AR_STA_ID1_KSRCH_MODE;
1197 case NL80211_IFTYPE_ADHOC:
1198 if (!AR_SREV_9340_13(ah)) {
1199 set |= AR_STA_ID1_ADHOC;
1200 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1204 case NL80211_IFTYPE_MESH_POINT:
1205 case NL80211_IFTYPE_AP:
1206 set |= AR_STA_ID1_STA_AP;
1208 case NL80211_IFTYPE_STATION:
1209 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1212 if (!ah->is_monitoring)
1216 REG_RMW(ah, AR_STA_ID1, set, mask);
1219 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
1220 u32 *coef_mantissa, u32 *coef_exponent)
1222 u32 coef_exp, coef_man;
1224 for (coef_exp = 31; coef_exp > 0; coef_exp--)
1225 if ((coef_scaled >> coef_exp) & 0x1)
1228 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1230 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1232 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1233 *coef_exponent = coef_exp - 16;
1237 * call external reset function to reset WMAC if:
1238 * - doing a cold reset
1239 * - we have pending frames in the TX queues.
1241 static bool ath9k_hw_ar9330_reset_war(struct ath_hw *ah, int type)
1245 for (i = 0; i < AR_NUM_QCU; i++) {
1246 npend = ath9k_hw_numtxpending(ah, i);
1251 if (ah->external_reset &&
1252 (npend || type == ATH9K_RESET_COLD)) {
1255 ath_dbg(ath9k_hw_common(ah), RESET,
1256 "reset MAC via external reset\n");
1258 reset_err = ah->external_reset();
1260 ath_err(ath9k_hw_common(ah),
1261 "External reset failed, err=%d\n",
1266 REG_WRITE(ah, AR_RTC_RESET, 1);
1272 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1277 if (AR_SREV_9100(ah)) {
1278 REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK,
1279 AR_RTC_DERIVED_CLK_PERIOD, 1);
1280 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1283 ENABLE_REGWRITE_BUFFER(ah);
1285 if (AR_SREV_9300_20_OR_LATER(ah)) {
1286 REG_WRITE(ah, AR_WA, ah->WARegVal);
1290 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1291 AR_RTC_FORCE_WAKE_ON_INT);
1293 if (AR_SREV_9100(ah)) {
1294 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1295 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1297 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1298 if (AR_SREV_9340(ah))
1299 tmpReg &= AR9340_INTR_SYNC_LOCAL_TIMEOUT;
1301 tmpReg &= AR_INTR_SYNC_LOCAL_TIMEOUT |
1302 AR_INTR_SYNC_RADM_CPL_TIMEOUT;
1306 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1309 if (!AR_SREV_9300_20_OR_LATER(ah))
1311 REG_WRITE(ah, AR_RC, val);
1313 } else if (!AR_SREV_9300_20_OR_LATER(ah))
1314 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1316 rst_flags = AR_RTC_RC_MAC_WARM;
1317 if (type == ATH9K_RESET_COLD)
1318 rst_flags |= AR_RTC_RC_MAC_COLD;
1321 if (AR_SREV_9330(ah)) {
1322 if (!ath9k_hw_ar9330_reset_war(ah, type))
1326 if (ath9k_hw_mci_is_enabled(ah))
1327 ar9003_mci_check_gpm_offset(ah);
1329 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1331 REGWRITE_BUFFER_FLUSH(ah);
1333 if (AR_SREV_9300_20_OR_LATER(ah))
1335 else if (AR_SREV_9100(ah))
1340 REG_WRITE(ah, AR_RTC_RC, 0);
1341 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1342 ath_dbg(ath9k_hw_common(ah), RESET, "RTC stuck in MAC reset\n");
1346 if (!AR_SREV_9100(ah))
1347 REG_WRITE(ah, AR_RC, 0);
1349 if (AR_SREV_9100(ah))
1355 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1357 ENABLE_REGWRITE_BUFFER(ah);
1359 if (AR_SREV_9300_20_OR_LATER(ah)) {
1360 REG_WRITE(ah, AR_WA, ah->WARegVal);
1364 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1365 AR_RTC_FORCE_WAKE_ON_INT);
1367 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1368 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1370 REG_WRITE(ah, AR_RTC_RESET, 0);
1372 REGWRITE_BUFFER_FLUSH(ah);
1376 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1377 REG_WRITE(ah, AR_RC, 0);
1379 REG_WRITE(ah, AR_RTC_RESET, 1);
1381 if (!ath9k_hw_wait(ah,
1386 ath_dbg(ath9k_hw_common(ah), RESET, "RTC not waking up\n");
1390 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1393 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1397 if (AR_SREV_9300_20_OR_LATER(ah)) {
1398 REG_WRITE(ah, AR_WA, ah->WARegVal);
1402 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1403 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1405 if (!ah->reset_power_on)
1406 type = ATH9K_RESET_POWER_ON;
1409 case ATH9K_RESET_POWER_ON:
1410 ret = ath9k_hw_set_reset_power_on(ah);
1412 ah->reset_power_on = true;
1414 case ATH9K_RESET_WARM:
1415 case ATH9K_RESET_COLD:
1416 ret = ath9k_hw_set_reset(ah, type);
1425 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1426 struct ath9k_channel *chan)
1428 int reset_type = ATH9K_RESET_WARM;
1430 if (AR_SREV_9280(ah)) {
1431 if (ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1432 reset_type = ATH9K_RESET_POWER_ON;
1434 reset_type = ATH9K_RESET_COLD;
1435 } else if (ah->chip_fullsleep || REG_READ(ah, AR_Q_TXE) ||
1436 (REG_READ(ah, AR_CR) & AR_CR_RXE))
1437 reset_type = ATH9K_RESET_COLD;
1439 if (!ath9k_hw_set_reset_reg(ah, reset_type))
1442 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1445 ah->chip_fullsleep = false;
1447 if (AR_SREV_9330(ah))
1448 ar9003_hw_internal_regulator_apply(ah);
1449 ath9k_hw_init_pll(ah, chan);
1454 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1455 struct ath9k_channel *chan)
1457 struct ath_common *common = ath9k_hw_common(ah);
1458 struct ath9k_hw_capabilities *pCap = &ah->caps;
1459 bool band_switch = false, mode_diff = false;
1460 u8 ini_reloaded = 0;
1464 if (pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) {
1465 u32 flags_diff = chan->channelFlags ^ ah->curchan->channelFlags;
1466 band_switch = !!(flags_diff & CHANNEL_5GHZ);
1467 mode_diff = !!(flags_diff & ~CHANNEL_HT);
1470 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1471 if (ath9k_hw_numtxpending(ah, qnum)) {
1472 ath_dbg(common, QUEUE,
1473 "Transmit frames pending on queue %d\n", qnum);
1478 if (!ath9k_hw_rfbus_req(ah)) {
1479 ath_err(common, "Could not kill baseband RX\n");
1483 if (band_switch || mode_diff) {
1484 ath9k_hw_mark_phy_inactive(ah);
1488 ath9k_hw_init_pll(ah, chan);
1490 if (ath9k_hw_fast_chan_change(ah, chan, &ini_reloaded)) {
1491 ath_err(common, "Failed to do fast channel change\n");
1496 ath9k_hw_set_channel_regs(ah, chan);
1498 r = ath9k_hw_rf_set_freq(ah, chan);
1500 ath_err(common, "Failed to set channel\n");
1503 ath9k_hw_set_clockrate(ah);
1504 ath9k_hw_apply_txpower(ah, chan, false);
1506 ath9k_hw_set_delta_slope(ah, chan);
1507 ath9k_hw_spur_mitigate_freq(ah, chan);
1509 if (band_switch || ini_reloaded)
1510 ah->eep_ops->set_board_values(ah, chan);
1512 ath9k_hw_init_bb(ah, chan);
1513 ath9k_hw_rfbus_done(ah);
1515 if (band_switch || ini_reloaded) {
1516 ah->ah_flags |= AH_FASTCC;
1517 ath9k_hw_init_cal(ah, chan);
1518 ah->ah_flags &= ~AH_FASTCC;
1524 static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
1526 u32 gpio_mask = ah->gpio_mask;
1529 for (i = 0; gpio_mask; i++, gpio_mask >>= 1) {
1530 if (!(gpio_mask & 1))
1533 ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
1534 ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
1538 void ath9k_hw_check_nav(struct ath_hw *ah)
1540 struct ath_common *common = ath9k_hw_common(ah);
1543 val = REG_READ(ah, AR_NAV);
1544 if (val != 0xdeadbeef && val > 0x7fff) {
1545 ath_dbg(common, BSTUCK, "Abnormal NAV: 0x%x\n", val);
1546 REG_WRITE(ah, AR_NAV, 0);
1549 EXPORT_SYMBOL(ath9k_hw_check_nav);
1551 bool ath9k_hw_check_alive(struct ath_hw *ah)
1556 if (AR_SREV_9300(ah))
1557 return !ath9k_hw_detect_mac_hang(ah);
1559 if (AR_SREV_9285_12_OR_LATER(ah))
1562 last_val = REG_READ(ah, AR_OBS_BUS_1);
1564 reg = REG_READ(ah, AR_OBS_BUS_1);
1565 if (reg != last_val)
1570 if ((reg & 0x7E7FFFEF) == 0x00702400)
1573 switch (reg & 0x7E000B00) {
1581 } while (count-- > 0);
1585 EXPORT_SYMBOL(ath9k_hw_check_alive);
1587 static void ath9k_hw_init_mfp(struct ath_hw *ah)
1589 /* Setup MFP options for CCMP */
1590 if (AR_SREV_9280_20_OR_LATER(ah)) {
1591 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1592 * frames when constructing CCMP AAD. */
1593 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1595 if (AR_SREV_9271(ah) || AR_DEVID_7010(ah))
1596 ah->sw_mgmt_crypto_tx = true;
1598 ah->sw_mgmt_crypto_tx = false;
1599 ah->sw_mgmt_crypto_rx = false;
1600 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1601 /* Disable hardware crypto for management frames */
1602 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1603 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1604 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1605 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1606 ah->sw_mgmt_crypto_tx = true;
1607 ah->sw_mgmt_crypto_rx = true;
1609 ah->sw_mgmt_crypto_tx = true;
1610 ah->sw_mgmt_crypto_rx = true;
1614 static void ath9k_hw_reset_opmode(struct ath_hw *ah,
1615 u32 macStaId1, u32 saveDefAntenna)
1617 struct ath_common *common = ath9k_hw_common(ah);
1619 ENABLE_REGWRITE_BUFFER(ah);
1621 REG_RMW(ah, AR_STA_ID1, macStaId1
1622 | AR_STA_ID1_RTS_USE_DEF
1623 | ah->sta_id1_defaults,
1624 ~AR_STA_ID1_SADH_MASK);
1625 ath_hw_setbssidmask(common);
1626 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1627 ath9k_hw_write_associd(ah);
1628 REG_WRITE(ah, AR_ISR, ~0);
1629 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1631 REGWRITE_BUFFER_FLUSH(ah);
1633 ath9k_hw_set_operating_mode(ah, ah->opmode);
1636 static void ath9k_hw_init_queues(struct ath_hw *ah)
1640 ENABLE_REGWRITE_BUFFER(ah);
1642 for (i = 0; i < AR_NUM_DCU; i++)
1643 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1645 REGWRITE_BUFFER_FLUSH(ah);
1648 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
1649 ath9k_hw_resettxqueue(ah, i);
1653 * For big endian systems turn on swapping for descriptors
1655 static void ath9k_hw_init_desc(struct ath_hw *ah)
1657 struct ath_common *common = ath9k_hw_common(ah);
1659 if (AR_SREV_9100(ah)) {
1661 mask = REG_READ(ah, AR_CFG);
1662 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1663 ath_dbg(common, RESET, "CFG Byte Swap Set 0x%x\n",
1666 mask = INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1667 REG_WRITE(ah, AR_CFG, mask);
1668 ath_dbg(common, RESET, "Setting CFG 0x%x\n",
1669 REG_READ(ah, AR_CFG));
1672 if (common->bus_ops->ath_bus_type == ATH_USB) {
1673 /* Configure AR9271 target WLAN */
1674 if (AR_SREV_9271(ah))
1675 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1677 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1680 else if (AR_SREV_9330(ah) || AR_SREV_9340(ah) ||
1681 AR_SREV_9550(ah) || AR_SREV_9531(ah))
1682 REG_RMW(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB, 0);
1684 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1690 * Fast channel change:
1691 * (Change synthesizer based on channel freq without resetting chip)
1693 static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan)
1695 struct ath_common *common = ath9k_hw_common(ah);
1696 struct ath9k_hw_capabilities *pCap = &ah->caps;
1699 if (AR_SREV_9280(ah) && common->bus_ops->ath_bus_type == ATH_PCI)
1702 if (ah->chip_fullsleep)
1708 if (chan->channel == ah->curchan->channel)
1711 if ((ah->curchan->channelFlags | chan->channelFlags) &
1712 (CHANNEL_HALF | CHANNEL_QUARTER))
1716 * If cross-band fcc is not supoprted, bail out if channelFlags differ.
1718 if (!(pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) &&
1719 ((chan->channelFlags ^ ah->curchan->channelFlags) & ~CHANNEL_HT))
1722 if (!ath9k_hw_check_alive(ah))
1726 * For AR9462, make sure that calibration data for
1727 * re-using are present.
1729 if (AR_SREV_9462(ah) && (ah->caldata &&
1730 (!test_bit(TXIQCAL_DONE, &ah->caldata->cal_flags) ||
1731 !test_bit(TXCLCAL_DONE, &ah->caldata->cal_flags) ||
1732 !test_bit(RTT_DONE, &ah->caldata->cal_flags))))
1735 ath_dbg(common, RESET, "FastChannelChange for %d -> %d\n",
1736 ah->curchan->channel, chan->channel);
1738 ret = ath9k_hw_channel_change(ah, chan);
1742 if (ath9k_hw_mci_is_enabled(ah))
1743 ar9003_mci_2g5g_switch(ah, false);
1745 ath9k_hw_loadnf(ah, ah->curchan);
1746 ath9k_hw_start_nfcal(ah, true);
1748 if (AR_SREV_9271(ah))
1749 ar9002_hw_load_ani_reg(ah, chan);
1756 u32 ath9k_hw_get_tsf_offset(struct timespec *last, struct timespec *cur)
1762 getrawmonotonic(&ts);
1766 usec = cur->tv_sec * 1000000ULL + cur->tv_nsec / 1000;
1767 usec -= last->tv_sec * 1000000ULL + last->tv_nsec / 1000;
1771 EXPORT_SYMBOL(ath9k_hw_get_tsf_offset);
1773 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1774 struct ath9k_hw_cal_data *caldata, bool fastcc)
1776 struct ath_common *common = ath9k_hw_common(ah);
1783 bool start_mci_reset = false;
1784 bool save_fullsleep = ah->chip_fullsleep;
1786 if (ath9k_hw_mci_is_enabled(ah)) {
1787 start_mci_reset = ar9003_mci_start_reset(ah, chan);
1788 if (start_mci_reset)
1792 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1795 if (ah->curchan && !ah->chip_fullsleep)
1796 ath9k_hw_getnf(ah, ah->curchan);
1798 ah->caldata = caldata;
1799 if (caldata && (chan->channel != caldata->channel ||
1800 chan->channelFlags != caldata->channelFlags)) {
1801 /* Operating channel changed, reset channel calibration data */
1802 memset(caldata, 0, sizeof(*caldata));
1803 ath9k_init_nfcal_hist_buffer(ah, chan);
1804 } else if (caldata) {
1805 clear_bit(PAPRD_PACKET_SENT, &caldata->cal_flags);
1807 ah->noise = ath9k_hw_getchan_noise(ah, chan, chan->noisefloor);
1810 r = ath9k_hw_do_fastcc(ah, chan);
1815 if (ath9k_hw_mci_is_enabled(ah))
1816 ar9003_mci_stop_bt(ah, save_fullsleep);
1818 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1819 if (saveDefAntenna == 0)
1822 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1824 /* Save TSF before chip reset, a cold reset clears it */
1825 tsf = ath9k_hw_gettsf64(ah);
1826 usec = ktime_to_us(ktime_get_raw());
1828 saveLedState = REG_READ(ah, AR_CFG_LED) &
1829 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1830 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1832 ath9k_hw_mark_phy_inactive(ah);
1834 ah->paprd_table_write_done = false;
1836 /* Only required on the first reset */
1837 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1839 AR9271_RESET_POWER_DOWN_CONTROL,
1840 AR9271_RADIO_RF_RST);
1844 if (!ath9k_hw_chip_reset(ah, chan)) {
1845 ath_err(common, "Chip reset failed\n");
1849 /* Only required on the first reset */
1850 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1851 ah->htc_reset_init = false;
1853 AR9271_RESET_POWER_DOWN_CONTROL,
1854 AR9271_GATE_MAC_CTL);
1859 usec = ktime_to_us(ktime_get_raw()) - usec;
1860 ath9k_hw_settsf64(ah, tsf + usec);
1862 if (AR_SREV_9280_20_OR_LATER(ah))
1863 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1865 if (!AR_SREV_9300_20_OR_LATER(ah))
1866 ar9002_hw_enable_async_fifo(ah);
1868 r = ath9k_hw_process_ini(ah, chan);
1872 ath9k_hw_set_rfmode(ah, chan);
1874 if (ath9k_hw_mci_is_enabled(ah))
1875 ar9003_mci_reset(ah, false, IS_CHAN_2GHZ(chan), save_fullsleep);
1878 * Some AR91xx SoC devices frequently fail to accept TSF writes
1879 * right after the chip reset. When that happens, write a new
1880 * value after the initvals have been applied, with an offset
1881 * based on measured time difference
1883 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1885 ath9k_hw_settsf64(ah, tsf);
1888 ath9k_hw_init_mfp(ah);
1890 ath9k_hw_set_delta_slope(ah, chan);
1891 ath9k_hw_spur_mitigate_freq(ah, chan);
1892 ah->eep_ops->set_board_values(ah, chan);
1894 ath9k_hw_reset_opmode(ah, macStaId1, saveDefAntenna);
1896 r = ath9k_hw_rf_set_freq(ah, chan);
1900 ath9k_hw_set_clockrate(ah);
1902 ath9k_hw_init_queues(ah);
1903 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1904 ath9k_hw_ani_cache_ini_regs(ah);
1905 ath9k_hw_init_qos(ah);
1907 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1908 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
1910 ath9k_hw_init_global_settings(ah);
1912 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1913 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
1914 AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
1915 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
1916 AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
1917 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1918 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
1921 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
1923 ath9k_hw_set_dma(ah);
1925 if (!ath9k_hw_mci_is_enabled(ah))
1926 REG_WRITE(ah, AR_OBS, 8);
1928 if (ah->config.rx_intr_mitigation) {
1929 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, ah->config.rimt_last);
1930 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, ah->config.rimt_first);
1933 if (ah->config.tx_intr_mitigation) {
1934 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1935 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1938 ath9k_hw_init_bb(ah, chan);
1941 clear_bit(TXIQCAL_DONE, &caldata->cal_flags);
1942 clear_bit(TXCLCAL_DONE, &caldata->cal_flags);
1944 if (!ath9k_hw_init_cal(ah, chan))
1947 if (ath9k_hw_mci_is_enabled(ah) && ar9003_mci_end_reset(ah, chan, caldata))
1950 ENABLE_REGWRITE_BUFFER(ah);
1952 ath9k_hw_restore_chainmask(ah);
1953 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1955 REGWRITE_BUFFER_FLUSH(ah);
1957 ath9k_hw_gen_timer_start_tsf2(ah);
1959 ath9k_hw_init_desc(ah);
1961 if (ath9k_hw_btcoex_is_enabled(ah))
1962 ath9k_hw_btcoex_enable(ah);
1964 if (ath9k_hw_mci_is_enabled(ah))
1965 ar9003_mci_check_bt(ah);
1967 if (AR_SREV_9300_20_OR_LATER(ah)) {
1968 ath9k_hw_loadnf(ah, chan);
1969 ath9k_hw_start_nfcal(ah, true);
1972 if (AR_SREV_9300_20_OR_LATER(ah))
1973 ar9003_hw_bb_watchdog_config(ah);
1975 if (ah->config.hw_hang_checks & HW_PHYRESTART_CLC_WAR)
1976 ar9003_hw_disable_phy_restart(ah);
1978 ath9k_hw_apply_gpio_override(ah);
1980 if (AR_SREV_9565(ah) && common->bt_ant_diversity)
1981 REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON);
1983 if (ah->hw->conf.radar_enabled) {
1984 /* set HW specific DFS configuration */
1985 ah->radar_conf.ext_channel = IS_CHAN_HT40(chan);
1986 ath9k_hw_set_radar_params(ah);
1991 EXPORT_SYMBOL(ath9k_hw_reset);
1993 /******************************/
1994 /* Power Management (Chipset) */
1995 /******************************/
1998 * Notify Power Mgt is disabled in self-generated frames.
1999 * If requested, force chip to sleep.
2001 static void ath9k_set_power_sleep(struct ath_hw *ah)
2003 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2005 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
2006 REG_CLR_BIT(ah, AR_TIMER_MODE, 0xff);
2007 REG_CLR_BIT(ah, AR_NDP2_TIMER_MODE, 0xff);
2008 REG_CLR_BIT(ah, AR_SLP32_INC, 0xfffff);
2009 /* xxx Required for WLAN only case ? */
2010 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, 0);
2015 * Clear the RTC force wake bit to allow the
2016 * mac to go to sleep.
2018 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
2020 if (ath9k_hw_mci_is_enabled(ah))
2023 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
2024 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
2026 /* Shutdown chip. Active low */
2027 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah)) {
2028 REG_CLR_BIT(ah, AR_RTC_RESET, AR_RTC_RESET_EN);
2032 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
2033 if (AR_SREV_9300_20_OR_LATER(ah))
2034 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
2038 * Notify Power Management is enabled in self-generating
2039 * frames. If request, set power mode of chip to
2040 * auto/normal. Duration in units of 128us (1/8 TU).
2042 static void ath9k_set_power_network_sleep(struct ath_hw *ah)
2044 struct ath9k_hw_capabilities *pCap = &ah->caps;
2046 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2048 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
2049 /* Set WakeOnInterrupt bit; clear ForceWake bit */
2050 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
2051 AR_RTC_FORCE_WAKE_ON_INT);
2054 /* When chip goes into network sleep, it could be waken
2055 * up by MCI_INT interrupt caused by BT's HW messages
2056 * (LNA_xxx, CONT_xxx) which chould be in a very fast
2057 * rate (~100us). This will cause chip to leave and
2058 * re-enter network sleep mode frequently, which in
2059 * consequence will have WLAN MCI HW to generate lots of
2060 * SYS_WAKING and SYS_SLEEPING messages which will make
2061 * BT CPU to busy to process.
2063 if (ath9k_hw_mci_is_enabled(ah))
2064 REG_CLR_BIT(ah, AR_MCI_INTERRUPT_RX_MSG_EN,
2065 AR_MCI_INTERRUPT_RX_HW_MSG_MASK);
2067 * Clear the RTC force wake bit to allow the
2068 * mac to go to sleep.
2070 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
2072 if (ath9k_hw_mci_is_enabled(ah))
2076 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
2077 if (AR_SREV_9300_20_OR_LATER(ah))
2078 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
2081 static bool ath9k_hw_set_power_awake(struct ath_hw *ah)
2086 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
2087 if (AR_SREV_9300_20_OR_LATER(ah)) {
2088 REG_WRITE(ah, AR_WA, ah->WARegVal);
2092 if ((REG_READ(ah, AR_RTC_STATUS) &
2093 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
2094 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
2097 if (!AR_SREV_9300_20_OR_LATER(ah))
2098 ath9k_hw_init_pll(ah, NULL);
2100 if (AR_SREV_9100(ah))
2101 REG_SET_BIT(ah, AR_RTC_RESET,
2104 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2105 AR_RTC_FORCE_WAKE_EN);
2106 if (AR_SREV_9100(ah))
2111 for (i = POWER_UP_TIME / 50; i > 0; i--) {
2112 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
2113 if (val == AR_RTC_STATUS_ON)
2116 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2117 AR_RTC_FORCE_WAKE_EN);
2120 ath_err(ath9k_hw_common(ah),
2121 "Failed to wakeup in %uus\n",
2122 POWER_UP_TIME / 20);
2126 if (ath9k_hw_mci_is_enabled(ah))
2127 ar9003_mci_set_power_awake(ah);
2129 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2134 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
2136 struct ath_common *common = ath9k_hw_common(ah);
2138 static const char *modes[] = {
2145 if (ah->power_mode == mode)
2148 ath_dbg(common, RESET, "%s -> %s\n",
2149 modes[ah->power_mode], modes[mode]);
2152 case ATH9K_PM_AWAKE:
2153 status = ath9k_hw_set_power_awake(ah);
2155 case ATH9K_PM_FULL_SLEEP:
2156 if (ath9k_hw_mci_is_enabled(ah))
2157 ar9003_mci_set_full_sleep(ah);
2159 ath9k_set_power_sleep(ah);
2160 ah->chip_fullsleep = true;
2162 case ATH9K_PM_NETWORK_SLEEP:
2163 ath9k_set_power_network_sleep(ah);
2166 ath_err(common, "Unknown power mode %u\n", mode);
2169 ah->power_mode = mode;
2172 * XXX: If this warning never comes up after a while then
2173 * simply keep the ATH_DBG_WARN_ON_ONCE() but make
2174 * ath9k_hw_setpower() return type void.
2177 if (!(ah->ah_flags & AH_UNPLUGGED))
2178 ATH_DBG_WARN_ON_ONCE(!status);
2182 EXPORT_SYMBOL(ath9k_hw_setpower);
2184 /*******************/
2185 /* Beacon Handling */
2186 /*******************/
2188 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
2192 ENABLE_REGWRITE_BUFFER(ah);
2194 switch (ah->opmode) {
2195 case NL80211_IFTYPE_ADHOC:
2196 REG_SET_BIT(ah, AR_TXCFG,
2197 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
2198 case NL80211_IFTYPE_MESH_POINT:
2199 case NL80211_IFTYPE_AP:
2200 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
2201 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
2202 TU_TO_USEC(ah->config.dma_beacon_response_time));
2203 REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
2204 TU_TO_USEC(ah->config.sw_beacon_response_time));
2206 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
2209 ath_dbg(ath9k_hw_common(ah), BEACON,
2210 "%s: unsupported opmode: %d\n", __func__, ah->opmode);
2215 REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
2216 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
2217 REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
2219 REGWRITE_BUFFER_FLUSH(ah);
2221 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
2223 EXPORT_SYMBOL(ath9k_hw_beaconinit);
2225 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
2226 const struct ath9k_beacon_state *bs)
2228 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
2229 struct ath9k_hw_capabilities *pCap = &ah->caps;
2230 struct ath_common *common = ath9k_hw_common(ah);
2232 ENABLE_REGWRITE_BUFFER(ah);
2234 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, bs->bs_nexttbtt);
2235 REG_WRITE(ah, AR_BEACON_PERIOD, bs->bs_intval);
2236 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, bs->bs_intval);
2238 REGWRITE_BUFFER_FLUSH(ah);
2240 REG_RMW_FIELD(ah, AR_RSSI_THR,
2241 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
2243 beaconintval = bs->bs_intval;
2245 if (bs->bs_sleepduration > beaconintval)
2246 beaconintval = bs->bs_sleepduration;
2248 dtimperiod = bs->bs_dtimperiod;
2249 if (bs->bs_sleepduration > dtimperiod)
2250 dtimperiod = bs->bs_sleepduration;
2252 if (beaconintval == dtimperiod)
2253 nextTbtt = bs->bs_nextdtim;
2255 nextTbtt = bs->bs_nexttbtt;
2257 ath_dbg(common, BEACON, "next DTIM %d\n", bs->bs_nextdtim);
2258 ath_dbg(common, BEACON, "next beacon %d\n", nextTbtt);
2259 ath_dbg(common, BEACON, "beacon period %d\n", beaconintval);
2260 ath_dbg(common, BEACON, "DTIM period %d\n", dtimperiod);
2262 ENABLE_REGWRITE_BUFFER(ah);
2264 REG_WRITE(ah, AR_NEXT_DTIM, bs->bs_nextdtim - SLEEP_SLOP);
2265 REG_WRITE(ah, AR_NEXT_TIM, nextTbtt - SLEEP_SLOP);
2267 REG_WRITE(ah, AR_SLEEP1,
2268 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
2269 | AR_SLEEP1_ASSUME_DTIM);
2271 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
2272 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
2274 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
2276 REG_WRITE(ah, AR_SLEEP2,
2277 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
2279 REG_WRITE(ah, AR_TIM_PERIOD, beaconintval);
2280 REG_WRITE(ah, AR_DTIM_PERIOD, dtimperiod);
2282 REGWRITE_BUFFER_FLUSH(ah);
2284 REG_SET_BIT(ah, AR_TIMER_MODE,
2285 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
2288 /* TSF Out of Range Threshold */
2289 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
2291 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
2293 /*******************/
2294 /* HW Capabilities */
2295 /*******************/
2297 static u8 fixup_chainmask(u8 chip_chainmask, u8 eeprom_chainmask)
2299 eeprom_chainmask &= chip_chainmask;
2300 if (eeprom_chainmask)
2301 return eeprom_chainmask;
2303 return chip_chainmask;
2307 * ath9k_hw_dfs_tested - checks if DFS has been tested with used chipset
2308 * @ah: the atheros hardware data structure
2310 * We enable DFS support upstream on chipsets which have passed a series
2311 * of tests. The testing requirements are going to be documented. Desired
2312 * test requirements are documented at:
2314 * http://wireless.kernel.org/en/users/Drivers/ath9k/dfs
2316 * Once a new chipset gets properly tested an individual commit can be used
2317 * to document the testing for DFS for that chipset.
2319 static bool ath9k_hw_dfs_tested(struct ath_hw *ah)
2322 switch (ah->hw_version.macVersion) {
2323 /* for temporary testing DFS with 9280 */
2324 case AR_SREV_VERSION_9280:
2325 /* AR9580 will likely be our first target to get testing on */
2326 case AR_SREV_VERSION_9580:
2333 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
2335 struct ath9k_hw_capabilities *pCap = &ah->caps;
2336 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2337 struct ath_common *common = ath9k_hw_common(ah);
2340 u8 ant_div_ctl1, tx_chainmask, rx_chainmask;
2342 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
2343 regulatory->current_rd = eeval;
2345 if (ah->opmode != NL80211_IFTYPE_AP &&
2346 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
2347 if (regulatory->current_rd == 0x64 ||
2348 regulatory->current_rd == 0x65)
2349 regulatory->current_rd += 5;
2350 else if (regulatory->current_rd == 0x41)
2351 regulatory->current_rd = 0x43;
2352 ath_dbg(common, REGULATORY, "regdomain mapped to 0x%x\n",
2353 regulatory->current_rd);
2356 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
2358 if (eeval & AR5416_OPFLAGS_11A) {
2359 if (ah->disable_5ghz)
2360 ath_warn(common, "disabling 5GHz band\n");
2362 pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
2365 if (eeval & AR5416_OPFLAGS_11G) {
2366 if (ah->disable_2ghz)
2367 ath_warn(common, "disabling 2GHz band\n");
2369 pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
2372 if ((pCap->hw_caps & (ATH9K_HW_CAP_2GHZ | ATH9K_HW_CAP_5GHZ)) == 0) {
2373 ath_err(common, "both bands are disabled\n");
2377 if (AR_SREV_9485(ah) ||
2381 pCap->chip_chainmask = 1;
2382 else if (!AR_SREV_9280_20_OR_LATER(ah))
2383 pCap->chip_chainmask = 7;
2384 else if (!AR_SREV_9300_20_OR_LATER(ah) ||
2388 pCap->chip_chainmask = 3;
2390 pCap->chip_chainmask = 7;
2392 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
2394 * For AR9271 we will temporarilly uses the rx chainmax as read from
2397 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
2398 !(eeval & AR5416_OPFLAGS_11A) &&
2399 !(AR_SREV_9271(ah)))
2400 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
2401 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
2402 else if (AR_SREV_9100(ah))
2403 pCap->rx_chainmask = 0x7;
2405 /* Use rx_chainmask from EEPROM. */
2406 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
2408 pCap->tx_chainmask = fixup_chainmask(pCap->chip_chainmask, pCap->tx_chainmask);
2409 pCap->rx_chainmask = fixup_chainmask(pCap->chip_chainmask, pCap->rx_chainmask);
2410 ah->txchainmask = pCap->tx_chainmask;
2411 ah->rxchainmask = pCap->rx_chainmask;
2413 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
2415 /* enable key search for every frame in an aggregate */
2416 if (AR_SREV_9300_20_OR_LATER(ah))
2417 ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
2419 common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
2421 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
2422 pCap->hw_caps |= ATH9K_HW_CAP_HT;
2424 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
2426 if (AR_SREV_9271(ah))
2427 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2428 else if (AR_DEVID_7010(ah))
2429 pCap->num_gpio_pins = AR7010_NUM_GPIO;
2430 else if (AR_SREV_9300_20_OR_LATER(ah))
2431 pCap->num_gpio_pins = AR9300_NUM_GPIO;
2432 else if (AR_SREV_9287_11_OR_LATER(ah))
2433 pCap->num_gpio_pins = AR9287_NUM_GPIO;
2434 else if (AR_SREV_9285_12_OR_LATER(ah))
2435 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2436 else if (AR_SREV_9280_20_OR_LATER(ah))
2437 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2439 pCap->num_gpio_pins = AR_NUM_GPIO;
2441 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah))
2442 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2444 pCap->rts_aggr_limit = (8 * 1024);
2446 #ifdef CONFIG_ATH9K_RFKILL
2447 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2448 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2450 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2451 ah->rfkill_polarity =
2452 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2454 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2457 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
2458 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2460 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2462 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2463 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2465 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2467 if (AR_SREV_9300_20_OR_LATER(ah)) {
2468 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
2469 if (!AR_SREV_9330(ah) && !AR_SREV_9485(ah) && !AR_SREV_9565(ah))
2470 pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
2472 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2473 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2474 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2475 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2476 pCap->txs_len = sizeof(struct ar9003_txs);
2478 pCap->tx_desc_len = sizeof(struct ath_desc);
2479 if (AR_SREV_9280_20(ah))
2480 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
2483 if (AR_SREV_9300_20_OR_LATER(ah))
2484 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2486 if (AR_SREV_9300_20_OR_LATER(ah))
2487 ah->ent_mode = REG_READ(ah, AR_ENT_OTP);
2489 if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah))
2490 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
2492 if (AR_SREV_9285(ah)) {
2493 if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) {
2495 ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2496 if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1)) {
2497 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2498 ath_info(common, "Enable LNA combining\n");
2503 if (AR_SREV_9300_20_OR_LATER(ah)) {
2504 if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
2505 pCap->hw_caps |= ATH9K_HW_CAP_APM;
2508 if (AR_SREV_9330(ah) || AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
2509 ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2510 if ((ant_div_ctl1 >> 0x6) == 0x3) {
2511 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2512 ath_info(common, "Enable LNA combining\n");
2516 if (ath9k_hw_dfs_tested(ah))
2517 pCap->hw_caps |= ATH9K_HW_CAP_DFS;
2519 tx_chainmask = pCap->tx_chainmask;
2520 rx_chainmask = pCap->rx_chainmask;
2521 while (tx_chainmask || rx_chainmask) {
2522 if (tx_chainmask & BIT(0))
2523 pCap->max_txchains++;
2524 if (rx_chainmask & BIT(0))
2525 pCap->max_rxchains++;
2531 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
2532 if (!(ah->ent_mode & AR_ENT_OTP_49GHZ_DISABLE))
2533 pCap->hw_caps |= ATH9K_HW_CAP_MCI;
2535 if (AR_SREV_9462_20_OR_LATER(ah))
2536 pCap->hw_caps |= ATH9K_HW_CAP_RTT;
2539 if (AR_SREV_9462(ah))
2540 pCap->hw_caps |= ATH9K_HW_WOW_DEVICE_CAPABLE;
2542 if (AR_SREV_9300_20_OR_LATER(ah) &&
2543 ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
2544 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
2549 /****************************/
2550 /* GPIO / RFKILL / Antennae */
2551 /****************************/
2553 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2557 u32 gpio_shift, tmp;
2560 addr = AR_GPIO_OUTPUT_MUX3;
2562 addr = AR_GPIO_OUTPUT_MUX2;
2564 addr = AR_GPIO_OUTPUT_MUX1;
2566 gpio_shift = (gpio % 6) * 5;
2568 if (AR_SREV_9280_20_OR_LATER(ah)
2569 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2570 REG_RMW(ah, addr, (type << gpio_shift),
2571 (0x1f << gpio_shift));
2573 tmp = REG_READ(ah, addr);
2574 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2575 tmp &= ~(0x1f << gpio_shift);
2576 tmp |= (type << gpio_shift);
2577 REG_WRITE(ah, addr, tmp);
2581 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2585 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2587 if (AR_DEVID_7010(ah)) {
2589 REG_RMW(ah, AR7010_GPIO_OE,
2590 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2591 (AR7010_GPIO_OE_MASK << gpio_shift));
2595 gpio_shift = gpio << 1;
2598 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2599 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2601 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2603 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2605 #define MS_REG_READ(x, y) \
2606 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2608 if (gpio >= ah->caps.num_gpio_pins)
2611 if (AR_DEVID_7010(ah)) {
2613 val = REG_READ(ah, AR7010_GPIO_IN);
2614 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2615 } else if (AR_SREV_9300_20_OR_LATER(ah))
2616 return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
2617 AR_GPIO_BIT(gpio)) != 0;
2618 else if (AR_SREV_9271(ah))
2619 return MS_REG_READ(AR9271, gpio) != 0;
2620 else if (AR_SREV_9287_11_OR_LATER(ah))
2621 return MS_REG_READ(AR9287, gpio) != 0;
2622 else if (AR_SREV_9285_12_OR_LATER(ah))
2623 return MS_REG_READ(AR9285, gpio) != 0;
2624 else if (AR_SREV_9280_20_OR_LATER(ah))
2625 return MS_REG_READ(AR928X, gpio) != 0;
2627 return MS_REG_READ(AR, gpio) != 0;
2629 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2631 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2636 if (AR_DEVID_7010(ah)) {
2638 REG_RMW(ah, AR7010_GPIO_OE,
2639 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2640 (AR7010_GPIO_OE_MASK << gpio_shift));
2644 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2645 gpio_shift = 2 * gpio;
2648 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2649 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2651 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2653 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2655 if (AR_DEVID_7010(ah)) {
2657 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2662 if (AR_SREV_9271(ah))
2665 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2668 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2670 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2672 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2674 EXPORT_SYMBOL(ath9k_hw_setantenna);
2676 /*********************/
2677 /* General Operation */
2678 /*********************/
2680 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2682 u32 bits = REG_READ(ah, AR_RX_FILTER);
2683 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2685 if (phybits & AR_PHY_ERR_RADAR)
2686 bits |= ATH9K_RX_FILTER_PHYRADAR;
2687 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2688 bits |= ATH9K_RX_FILTER_PHYERR;
2692 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2694 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2698 ENABLE_REGWRITE_BUFFER(ah);
2700 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
2701 bits |= ATH9K_RX_FILTER_CONTROL_WRAPPER;
2703 REG_WRITE(ah, AR_RX_FILTER, bits);
2706 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2707 phybits |= AR_PHY_ERR_RADAR;
2708 if (bits & ATH9K_RX_FILTER_PHYERR)
2709 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2710 REG_WRITE(ah, AR_PHY_ERR, phybits);
2713 REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2715 REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2717 REGWRITE_BUFFER_FLUSH(ah);
2719 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2721 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2723 if (ath9k_hw_mci_is_enabled(ah))
2724 ar9003_mci_bt_gain_ctrl(ah);
2726 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2729 ath9k_hw_init_pll(ah, NULL);
2730 ah->htc_reset_init = true;
2733 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2735 bool ath9k_hw_disable(struct ath_hw *ah)
2737 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2740 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2743 ath9k_hw_init_pll(ah, NULL);
2746 EXPORT_SYMBOL(ath9k_hw_disable);
2748 static int get_antenna_gain(struct ath_hw *ah, struct ath9k_channel *chan)
2750 enum eeprom_param gain_param;
2752 if (IS_CHAN_2GHZ(chan))
2753 gain_param = EEP_ANTENNA_GAIN_2G;
2755 gain_param = EEP_ANTENNA_GAIN_5G;
2757 return ah->eep_ops->get_eeprom(ah, gain_param);
2760 void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan,
2763 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2764 struct ieee80211_channel *channel;
2765 int chan_pwr, new_pwr, max_gain;
2766 int ant_gain, ant_reduction = 0;
2771 channel = chan->chan;
2772 chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER);
2773 new_pwr = min_t(int, chan_pwr, reg->power_limit);
2774 max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2;
2776 ant_gain = get_antenna_gain(ah, chan);
2777 if (ant_gain > max_gain)
2778 ant_reduction = ant_gain - max_gain;
2780 ah->eep_ops->set_txpower(ah, chan,
2781 ath9k_regd_get_ctl(reg, chan),
2782 ant_reduction, new_pwr, test);
2785 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
2787 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2788 struct ath9k_channel *chan = ah->curchan;
2789 struct ieee80211_channel *channel = chan->chan;
2791 reg->power_limit = min_t(u32, limit, MAX_RATE_POWER);
2793 channel->max_power = MAX_RATE_POWER / 2;
2795 ath9k_hw_apply_txpower(ah, chan, test);
2798 channel->max_power = DIV_ROUND_UP(reg->max_power_level, 2);
2800 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2802 void ath9k_hw_setopmode(struct ath_hw *ah)
2804 ath9k_hw_set_operating_mode(ah, ah->opmode);
2806 EXPORT_SYMBOL(ath9k_hw_setopmode);
2808 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2810 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2811 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2813 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2815 void ath9k_hw_write_associd(struct ath_hw *ah)
2817 struct ath_common *common = ath9k_hw_common(ah);
2819 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2820 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2821 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2823 EXPORT_SYMBOL(ath9k_hw_write_associd);
2825 #define ATH9K_MAX_TSF_READ 10
2827 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2829 u32 tsf_lower, tsf_upper1, tsf_upper2;
2832 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2833 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2834 tsf_lower = REG_READ(ah, AR_TSF_L32);
2835 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2836 if (tsf_upper2 == tsf_upper1)
2838 tsf_upper1 = tsf_upper2;
2841 WARN_ON( i == ATH9K_MAX_TSF_READ );
2843 return (((u64)tsf_upper1 << 32) | tsf_lower);
2845 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2847 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2849 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2850 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2852 EXPORT_SYMBOL(ath9k_hw_settsf64);
2854 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2856 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2857 AH_TSF_WRITE_TIMEOUT))
2858 ath_dbg(ath9k_hw_common(ah), RESET,
2859 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2861 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2863 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2865 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, bool set)
2868 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2870 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2872 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2874 void ath9k_hw_set11nmac2040(struct ath_hw *ah, struct ath9k_channel *chan)
2878 if (IS_CHAN_HT40(chan) && !ah->config.cwm_ignore_extcca)
2879 macmode = AR_2040_JOINED_RX_CLEAR;
2883 REG_WRITE(ah, AR_2040_MODE, macmode);
2886 /* HW Generic timers configuration */
2888 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2890 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2891 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2892 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2893 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2894 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2895 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2896 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2897 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2898 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2899 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2900 AR_NDP2_TIMER_MODE, 0x0002},
2901 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2902 AR_NDP2_TIMER_MODE, 0x0004},
2903 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2904 AR_NDP2_TIMER_MODE, 0x0008},
2905 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2906 AR_NDP2_TIMER_MODE, 0x0010},
2907 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2908 AR_NDP2_TIMER_MODE, 0x0020},
2909 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2910 AR_NDP2_TIMER_MODE, 0x0040},
2911 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2912 AR_NDP2_TIMER_MODE, 0x0080}
2915 /* HW generic timer primitives */
2917 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2919 return REG_READ(ah, AR_TSF_L32);
2921 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2923 void ath9k_hw_gen_timer_start_tsf2(struct ath_hw *ah)
2925 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2927 if (timer_table->tsf2_enabled) {
2928 REG_SET_BIT(ah, AR_DIRECT_CONNECT, AR_DC_AP_STA_EN);
2929 REG_SET_BIT(ah, AR_RESET_TSF, AR_RESET_TSF2_ONCE);
2933 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2934 void (*trigger)(void *),
2935 void (*overflow)(void *),
2939 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2940 struct ath_gen_timer *timer;
2942 if ((timer_index < AR_FIRST_NDP_TIMER) ||
2943 (timer_index >= ATH_MAX_GEN_TIMER))
2946 if ((timer_index > AR_FIRST_NDP_TIMER) &&
2947 !AR_SREV_9300_20_OR_LATER(ah))
2950 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2954 /* allocate a hardware generic timer slot */
2955 timer_table->timers[timer_index] = timer;
2956 timer->index = timer_index;
2957 timer->trigger = trigger;
2958 timer->overflow = overflow;
2961 if ((timer_index > AR_FIRST_NDP_TIMER) && !timer_table->tsf2_enabled) {
2962 timer_table->tsf2_enabled = true;
2963 ath9k_hw_gen_timer_start_tsf2(ah);
2968 EXPORT_SYMBOL(ath_gen_timer_alloc);
2970 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2971 struct ath_gen_timer *timer,
2975 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2978 timer_table->timer_mask |= BIT(timer->index);
2981 * Program generic timer registers
2983 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2985 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2987 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2988 gen_tmr_configuration[timer->index].mode_mask);
2990 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
2992 * Starting from AR9462, each generic timer can select which tsf
2993 * to use. But we still follow the old rule, 0 - 7 use tsf and
2996 if ((timer->index < AR_GEN_TIMER_BANK_1_LEN))
2997 REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
2998 (1 << timer->index));
3000 REG_SET_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
3001 (1 << timer->index));
3005 mask |= SM(AR_GENTMR_BIT(timer->index),
3006 AR_IMR_S5_GENTIMER_TRIG);
3007 if (timer->overflow)
3008 mask |= SM(AR_GENTMR_BIT(timer->index),
3009 AR_IMR_S5_GENTIMER_THRESH);
3011 REG_SET_BIT(ah, AR_IMR_S5, mask);
3013 if ((ah->imask & ATH9K_INT_GENTIMER) == 0) {
3014 ah->imask |= ATH9K_INT_GENTIMER;
3015 ath9k_hw_set_interrupts(ah);
3018 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
3020 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
3022 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3024 /* Clear generic timer enable bits. */
3025 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
3026 gen_tmr_configuration[timer->index].mode_mask);
3028 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
3030 * Need to switch back to TSF if it was using TSF2.
3032 if ((timer->index >= AR_GEN_TIMER_BANK_1_LEN)) {
3033 REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
3034 (1 << timer->index));
3038 /* Disable both trigger and thresh interrupt masks */
3039 REG_CLR_BIT(ah, AR_IMR_S5,
3040 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
3041 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
3043 timer_table->timer_mask &= ~BIT(timer->index);
3045 if (timer_table->timer_mask == 0) {
3046 ah->imask &= ~ATH9K_INT_GENTIMER;
3047 ath9k_hw_set_interrupts(ah);
3050 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
3052 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
3054 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3056 /* free the hardware generic timer slot */
3057 timer_table->timers[timer->index] = NULL;
3060 EXPORT_SYMBOL(ath_gen_timer_free);
3063 * Generic Timer Interrupts handling
3065 void ath_gen_timer_isr(struct ath_hw *ah)
3067 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3068 struct ath_gen_timer *timer;
3069 unsigned long trigger_mask, thresh_mask;
3072 /* get hardware generic timer interrupt status */
3073 trigger_mask = ah->intr_gen_timer_trigger;
3074 thresh_mask = ah->intr_gen_timer_thresh;
3075 trigger_mask &= timer_table->timer_mask;
3076 thresh_mask &= timer_table->timer_mask;
3078 for_each_set_bit(index, &thresh_mask, ARRAY_SIZE(timer_table->timers)) {
3079 timer = timer_table->timers[index];
3082 if (!timer->overflow)
3085 trigger_mask &= ~BIT(index);
3086 timer->overflow(timer->arg);
3089 for_each_set_bit(index, &trigger_mask, ARRAY_SIZE(timer_table->timers)) {
3090 timer = timer_table->timers[index];
3093 if (!timer->trigger)
3095 timer->trigger(timer->arg);
3098 EXPORT_SYMBOL(ath_gen_timer_isr);
3107 } ath_mac_bb_names[] = {
3108 /* Devices with external radios */
3109 { AR_SREV_VERSION_5416_PCI, "5416" },
3110 { AR_SREV_VERSION_5416_PCIE, "5418" },
3111 { AR_SREV_VERSION_9100, "9100" },
3112 { AR_SREV_VERSION_9160, "9160" },
3113 /* Single-chip solutions */
3114 { AR_SREV_VERSION_9280, "9280" },
3115 { AR_SREV_VERSION_9285, "9285" },
3116 { AR_SREV_VERSION_9287, "9287" },
3117 { AR_SREV_VERSION_9271, "9271" },
3118 { AR_SREV_VERSION_9300, "9300" },
3119 { AR_SREV_VERSION_9330, "9330" },
3120 { AR_SREV_VERSION_9340, "9340" },
3121 { AR_SREV_VERSION_9485, "9485" },
3122 { AR_SREV_VERSION_9462, "9462" },
3123 { AR_SREV_VERSION_9550, "9550" },
3124 { AR_SREV_VERSION_9565, "9565" },
3125 { AR_SREV_VERSION_9531, "9531" },
3128 /* For devices with external radios */
3132 } ath_rf_names[] = {
3134 { AR_RAD5133_SREV_MAJOR, "5133" },
3135 { AR_RAD5122_SREV_MAJOR, "5122" },
3136 { AR_RAD2133_SREV_MAJOR, "2133" },
3137 { AR_RAD2122_SREV_MAJOR, "2122" }
3141 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
3143 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
3147 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
3148 if (ath_mac_bb_names[i].version == mac_bb_version) {
3149 return ath_mac_bb_names[i].name;
3157 * Return the RF name. "????" is returned if the RF is unknown.
3158 * Used for devices with external radios.
3160 static const char *ath9k_hw_rf_name(u16 rf_version)
3164 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
3165 if (ath_rf_names[i].version == rf_version) {
3166 return ath_rf_names[i].name;
3173 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
3177 /* chipsets >= AR9280 are single-chip */
3178 if (AR_SREV_9280_20_OR_LATER(ah)) {
3179 used = scnprintf(hw_name, len,
3180 "Atheros AR%s Rev:%x",
3181 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3182 ah->hw_version.macRev);
3185 used = scnprintf(hw_name, len,
3186 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
3187 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3188 ah->hw_version.macRev,
3189 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev
3190 & AR_RADIO_SREV_MAJOR)),
3191 ah->hw_version.phyRev);
3194 hw_name[used] = '\0';
3196 EXPORT_SYMBOL(ath9k_hw_name);