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 <asm/unaligned.h>
26 #include "ar9003_mac.h"
27 #include "ar9003_mci.h"
28 #include "ar9003_phy.h"
31 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
33 MODULE_AUTHOR("Atheros Communications");
34 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
35 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
36 MODULE_LICENSE("Dual BSD/GPL");
38 static void ath9k_hw_set_clockrate(struct ath_hw *ah)
40 struct ath_common *common = ath9k_hw_common(ah);
41 struct ath9k_channel *chan = ah->curchan;
42 unsigned int clockrate;
44 /* AR9287 v1.3+ uses async FIFO and runs the MAC at 117 MHz */
45 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah))
47 else if (!chan) /* should really check for CCK instead */
48 clockrate = ATH9K_CLOCK_RATE_CCK;
49 else if (IS_CHAN_2GHZ(chan))
50 clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
51 else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
52 clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
54 clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
57 if (IS_CHAN_HT40(chan))
59 if (IS_CHAN_HALF_RATE(chan))
61 if (IS_CHAN_QUARTER_RATE(chan))
65 common->clockrate = clockrate;
68 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
70 struct ath_common *common = ath9k_hw_common(ah);
72 return usecs * common->clockrate;
75 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
79 BUG_ON(timeout < AH_TIME_QUANTUM);
81 for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
82 if ((REG_READ(ah, reg) & mask) == val)
85 udelay(AH_TIME_QUANTUM);
88 ath_dbg(ath9k_hw_common(ah), ANY,
89 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
90 timeout, reg, REG_READ(ah, reg), mask, val);
94 EXPORT_SYMBOL(ath9k_hw_wait);
96 void ath9k_hw_synth_delay(struct ath_hw *ah, struct ath9k_channel *chan,
101 if (IS_CHAN_HALF_RATE(chan))
103 else if (IS_CHAN_QUARTER_RATE(chan))
106 udelay(hw_delay + BASE_ACTIVATE_DELAY);
109 void ath9k_hw_write_array(struct ath_hw *ah, const struct ar5416IniArray *array,
110 int column, unsigned int *writecnt)
114 ENABLE_REGWRITE_BUFFER(ah);
115 for (r = 0; r < array->ia_rows; r++) {
116 REG_WRITE(ah, INI_RA(array, r, 0),
117 INI_RA(array, r, column));
120 REGWRITE_BUFFER_FLUSH(ah);
123 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
128 for (i = 0, retval = 0; i < n; i++) {
129 retval = (retval << 1) | (val & 1);
135 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
137 u32 frameLen, u16 rateix,
140 u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
146 case WLAN_RC_PHY_CCK:
147 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
150 numBits = frameLen << 3;
151 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
153 case WLAN_RC_PHY_OFDM:
154 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
155 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
156 numBits = OFDM_PLCP_BITS + (frameLen << 3);
157 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
158 txTime = OFDM_SIFS_TIME_QUARTER
159 + OFDM_PREAMBLE_TIME_QUARTER
160 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
161 } else if (ah->curchan &&
162 IS_CHAN_HALF_RATE(ah->curchan)) {
163 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
164 numBits = OFDM_PLCP_BITS + (frameLen << 3);
165 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
166 txTime = OFDM_SIFS_TIME_HALF +
167 OFDM_PREAMBLE_TIME_HALF
168 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
170 bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
171 numBits = OFDM_PLCP_BITS + (frameLen << 3);
172 numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
173 txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
174 + (numSymbols * OFDM_SYMBOL_TIME);
178 ath_err(ath9k_hw_common(ah),
179 "Unknown phy %u (rate ix %u)\n", phy, rateix);
186 EXPORT_SYMBOL(ath9k_hw_computetxtime);
188 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
189 struct ath9k_channel *chan,
190 struct chan_centers *centers)
194 if (!IS_CHAN_HT40(chan)) {
195 centers->ctl_center = centers->ext_center =
196 centers->synth_center = chan->channel;
200 if (IS_CHAN_HT40PLUS(chan)) {
201 centers->synth_center =
202 chan->channel + HT40_CHANNEL_CENTER_SHIFT;
205 centers->synth_center =
206 chan->channel - HT40_CHANNEL_CENTER_SHIFT;
210 centers->ctl_center =
211 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
212 /* 25 MHz spacing is supported by hw but not on upper layers */
213 centers->ext_center =
214 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
221 static void ath9k_hw_read_revisions(struct ath_hw *ah)
225 switch (ah->hw_version.devid) {
226 case AR5416_AR9100_DEVID:
227 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
229 case AR9300_DEVID_AR9330:
230 ah->hw_version.macVersion = AR_SREV_VERSION_9330;
231 if (ah->get_mac_revision) {
232 ah->hw_version.macRev = ah->get_mac_revision();
234 val = REG_READ(ah, AR_SREV);
235 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
238 case AR9300_DEVID_AR9340:
239 ah->hw_version.macVersion = AR_SREV_VERSION_9340;
240 val = REG_READ(ah, AR_SREV);
241 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
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;
248 if (ah->get_mac_revision)
249 ah->hw_version.macRev = ah->get_mac_revision();
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 ah->ani_function = ATH9K_ANI_ALL;
428 if (!AR_SREV_9300_20_OR_LATER(ah))
429 ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
431 if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
432 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
434 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
437 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
439 struct ath_common *common = ath9k_hw_common(ah);
443 static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
446 for (i = 0; i < 3; i++) {
447 eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
449 common->macaddr[2 * i] = eeval >> 8;
450 common->macaddr[2 * i + 1] = eeval & 0xff;
452 if (sum == 0 || sum == 0xffff * 3)
453 return -EADDRNOTAVAIL;
458 static int ath9k_hw_post_init(struct ath_hw *ah)
460 struct ath_common *common = ath9k_hw_common(ah);
463 if (common->bus_ops->ath_bus_type != ATH_USB) {
464 if (!ath9k_hw_chip_test(ah))
468 if (!AR_SREV_9300_20_OR_LATER(ah)) {
469 ecode = ar9002_hw_rf_claim(ah);
474 ecode = ath9k_hw_eeprom_init(ah);
478 ath_dbg(ath9k_hw_common(ah), CONFIG, "Eeprom VER: %d, REV: %d\n",
479 ah->eep_ops->get_eeprom_ver(ah),
480 ah->eep_ops->get_eeprom_rev(ah));
482 ath9k_hw_ani_init(ah);
485 * EEPROM needs to be initialized before we do this.
486 * This is required for regulatory compliance.
488 if (AR_SREV_9300_20_OR_LATER(ah)) {
489 u16 regdmn = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
490 if ((regdmn & 0xF0) == CTL_FCC) {
491 ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_FCC_2GHZ;
492 ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_FCC_5GHZ;
499 static int ath9k_hw_attach_ops(struct ath_hw *ah)
501 if (!AR_SREV_9300_20_OR_LATER(ah))
502 return ar9002_hw_attach_ops(ah);
504 ar9003_hw_attach_ops(ah);
508 /* Called for all hardware families */
509 static int __ath9k_hw_init(struct ath_hw *ah)
511 struct ath_common *common = ath9k_hw_common(ah);
514 ath9k_hw_read_revisions(ah);
516 switch (ah->hw_version.macVersion) {
517 case AR_SREV_VERSION_5416_PCI:
518 case AR_SREV_VERSION_5416_PCIE:
519 case AR_SREV_VERSION_9160:
520 case AR_SREV_VERSION_9100:
521 case AR_SREV_VERSION_9280:
522 case AR_SREV_VERSION_9285:
523 case AR_SREV_VERSION_9287:
524 case AR_SREV_VERSION_9271:
525 case AR_SREV_VERSION_9300:
526 case AR_SREV_VERSION_9330:
527 case AR_SREV_VERSION_9485:
528 case AR_SREV_VERSION_9340:
529 case AR_SREV_VERSION_9462:
530 case AR_SREV_VERSION_9550:
531 case AR_SREV_VERSION_9565:
532 case AR_SREV_VERSION_9531:
536 "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
537 ah->hw_version.macVersion, ah->hw_version.macRev);
542 * Read back AR_WA into a permanent copy and set bits 14 and 17.
543 * We need to do this to avoid RMW of this register. We cannot
544 * read the reg when chip is asleep.
546 if (AR_SREV_9300_20_OR_LATER(ah)) {
547 ah->WARegVal = REG_READ(ah, AR_WA);
548 ah->WARegVal |= (AR_WA_D3_L1_DISABLE |
549 AR_WA_ASPM_TIMER_BASED_DISABLE);
552 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
553 ath_err(common, "Couldn't reset chip\n");
557 if (AR_SREV_9565(ah)) {
558 ah->WARegVal |= AR_WA_BIT22;
559 REG_WRITE(ah, AR_WA, ah->WARegVal);
562 ath9k_hw_init_defaults(ah);
563 ath9k_hw_init_config(ah);
565 r = ath9k_hw_attach_ops(ah);
569 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
570 ath_err(common, "Couldn't wakeup chip\n");
574 if (AR_SREV_9271(ah) || AR_SREV_9100(ah) || AR_SREV_9340(ah) ||
575 AR_SREV_9330(ah) || AR_SREV_9550(ah))
576 ah->is_pciexpress = false;
578 ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
579 ath9k_hw_init_cal_settings(ah);
581 if (!ah->is_pciexpress)
582 ath9k_hw_disablepcie(ah);
584 r = ath9k_hw_post_init(ah);
588 ath9k_hw_init_mode_gain_regs(ah);
589 r = ath9k_hw_fill_cap_info(ah);
593 r = ath9k_hw_init_macaddr(ah);
595 ath_err(common, "Failed to initialize MAC address\n");
599 ath9k_hw_init_hang_checks(ah);
601 common->state = ATH_HW_INITIALIZED;
606 int ath9k_hw_init(struct ath_hw *ah)
609 struct ath_common *common = ath9k_hw_common(ah);
611 /* These are all the AR5008/AR9001/AR9002/AR9003 hardware family of chipsets */
612 switch (ah->hw_version.devid) {
613 case AR5416_DEVID_PCI:
614 case AR5416_DEVID_PCIE:
615 case AR5416_AR9100_DEVID:
616 case AR9160_DEVID_PCI:
617 case AR9280_DEVID_PCI:
618 case AR9280_DEVID_PCIE:
619 case AR9285_DEVID_PCIE:
620 case AR9287_DEVID_PCI:
621 case AR9287_DEVID_PCIE:
622 case AR2427_DEVID_PCIE:
623 case AR9300_DEVID_PCIE:
624 case AR9300_DEVID_AR9485_PCIE:
625 case AR9300_DEVID_AR9330:
626 case AR9300_DEVID_AR9340:
627 case AR9300_DEVID_QCA955X:
628 case AR9300_DEVID_AR9580:
629 case AR9300_DEVID_AR9462:
630 case AR9485_DEVID_AR1111:
631 case AR9300_DEVID_AR9565:
632 case AR9300_DEVID_AR953X:
635 if (common->bus_ops->ath_bus_type == ATH_USB)
637 ath_err(common, "Hardware device ID 0x%04x not supported\n",
638 ah->hw_version.devid);
642 ret = __ath9k_hw_init(ah);
645 "Unable to initialize hardware; initialization status: %d\n",
654 EXPORT_SYMBOL(ath9k_hw_init);
656 static void ath9k_hw_init_qos(struct ath_hw *ah)
658 ENABLE_REGWRITE_BUFFER(ah);
660 REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
661 REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
663 REG_WRITE(ah, AR_QOS_NO_ACK,
664 SM(2, AR_QOS_NO_ACK_TWO_BIT) |
665 SM(5, AR_QOS_NO_ACK_BIT_OFF) |
666 SM(0, AR_QOS_NO_ACK_BYTE_OFF));
668 REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
669 REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
670 REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
671 REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
672 REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
674 REGWRITE_BUFFER_FLUSH(ah);
677 u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
679 struct ath_common *common = ath9k_hw_common(ah);
682 REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
684 REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
686 while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0) {
690 if (WARN_ON_ONCE(i >= 100)) {
691 ath_err(common, "PLL4 meaurement not done\n");
698 return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
700 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
702 static void ath9k_hw_init_pll(struct ath_hw *ah,
703 struct ath9k_channel *chan)
707 if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
708 /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */
709 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
710 AR_CH0_BB_DPLL2_PLL_PWD, 0x1);
711 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
712 AR_CH0_DPLL2_KD, 0x40);
713 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
714 AR_CH0_DPLL2_KI, 0x4);
716 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
717 AR_CH0_BB_DPLL1_REFDIV, 0x5);
718 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
719 AR_CH0_BB_DPLL1_NINI, 0x58);
720 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
721 AR_CH0_BB_DPLL1_NFRAC, 0x0);
723 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
724 AR_CH0_BB_DPLL2_OUTDIV, 0x1);
725 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
726 AR_CH0_BB_DPLL2_LOCAL_PLL, 0x1);
727 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
728 AR_CH0_BB_DPLL2_EN_NEGTRIG, 0x1);
730 /* program BB PLL phase_shift to 0x6 */
731 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
732 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x6);
734 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
735 AR_CH0_BB_DPLL2_PLL_PWD, 0x0);
737 } else if (AR_SREV_9330(ah)) {
738 u32 ddr_dpll2, pll_control2, kd;
740 if (ah->is_clk_25mhz) {
741 ddr_dpll2 = 0x18e82f01;
742 pll_control2 = 0xe04a3d;
745 ddr_dpll2 = 0x19e82f01;
746 pll_control2 = 0x886666;
750 /* program DDR PLL ki and kd value */
751 REG_WRITE(ah, AR_CH0_DDR_DPLL2, ddr_dpll2);
753 /* program DDR PLL phase_shift */
754 REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3,
755 AR_CH0_DPLL3_PHASE_SHIFT, 0x1);
757 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
760 /* program refdiv, nint, frac to RTC register */
761 REG_WRITE(ah, AR_RTC_PLL_CONTROL2, pll_control2);
763 /* program BB PLL kd and ki value */
764 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KD, kd);
765 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KI, 0x06);
767 /* program BB PLL phase_shift */
768 REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
769 AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x1);
770 } else if (AR_SREV_9340(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah)) {
771 u32 regval, pll2_divint, pll2_divfrac, refdiv;
773 REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
776 REG_SET_BIT(ah, AR_PHY_PLL_MODE, 0x1 << 16);
779 if (ah->is_clk_25mhz) {
780 if (AR_SREV_9531(ah)) {
782 pll2_divfrac = 0xa3d2;
786 pll2_divfrac = 0x1eb85;
790 if (AR_SREV_9340(ah)) {
797 AR_SREV_9531(ah) ? 0x26665 : 0x26666;
802 regval = REG_READ(ah, AR_PHY_PLL_MODE);
803 if (AR_SREV_9531(ah))
804 regval |= (0x1 << 22);
806 regval |= (0x1 << 16);
807 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
810 REG_WRITE(ah, AR_PHY_PLL_CONTROL, (refdiv << 27) |
811 (pll2_divint << 18) | pll2_divfrac);
814 regval = REG_READ(ah, AR_PHY_PLL_MODE);
815 if (AR_SREV_9340(ah))
816 regval = (regval & 0x80071fff) |
821 else if (AR_SREV_9531(ah))
822 regval = (regval & 0x01c00fff) |
829 regval = (regval & 0x80071fff) |
834 REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
836 if (AR_SREV_9531(ah))
837 REG_WRITE(ah, AR_PHY_PLL_MODE,
838 REG_READ(ah, AR_PHY_PLL_MODE) & 0xffbfffff);
840 REG_WRITE(ah, AR_PHY_PLL_MODE,
841 REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff);
846 pll = ath9k_hw_compute_pll_control(ah, chan);
847 if (AR_SREV_9565(ah))
849 REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
851 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
855 /* Switch the core clock for ar9271 to 117Mhz */
856 if (AR_SREV_9271(ah)) {
858 REG_WRITE(ah, 0x50040, 0x304);
861 udelay(RTC_PLL_SETTLE_DELAY);
863 REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
865 if (AR_SREV_9340(ah) || AR_SREV_9550(ah)) {
866 if (ah->is_clk_25mhz) {
867 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x17c << 1);
868 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f3d7);
869 REG_WRITE(ah, AR_SLP32_INC, 0x0001e7ae);
871 REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x261 << 1);
872 REG_WRITE(ah, AR_SLP32_MODE, 0x0010f400);
873 REG_WRITE(ah, AR_SLP32_INC, 0x0001e800);
879 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
880 enum nl80211_iftype opmode)
882 u32 sync_default = AR_INTR_SYNC_DEFAULT;
883 u32 imr_reg = AR_IMR_TXERR |
889 if (AR_SREV_9340(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah))
890 sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
892 if (AR_SREV_9300_20_OR_LATER(ah)) {
893 imr_reg |= AR_IMR_RXOK_HP;
894 if (ah->config.rx_intr_mitigation)
895 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
897 imr_reg |= AR_IMR_RXOK_LP;
900 if (ah->config.rx_intr_mitigation)
901 imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
903 imr_reg |= AR_IMR_RXOK;
906 if (ah->config.tx_intr_mitigation)
907 imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR;
909 imr_reg |= AR_IMR_TXOK;
911 ENABLE_REGWRITE_BUFFER(ah);
913 REG_WRITE(ah, AR_IMR, imr_reg);
914 ah->imrs2_reg |= AR_IMR_S2_GTT;
915 REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
917 if (!AR_SREV_9100(ah)) {
918 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
919 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default);
920 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
923 REGWRITE_BUFFER_FLUSH(ah);
925 if (AR_SREV_9300_20_OR_LATER(ah)) {
926 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0);
927 REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0);
928 REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0);
929 REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0);
933 static void ath9k_hw_set_sifs_time(struct ath_hw *ah, u32 us)
935 u32 val = ath9k_hw_mac_to_clks(ah, us - 2);
936 val = min(val, (u32) 0xFFFF);
937 REG_WRITE(ah, AR_D_GBL_IFS_SIFS, val);
940 void ath9k_hw_setslottime(struct ath_hw *ah, u32 us)
942 u32 val = ath9k_hw_mac_to_clks(ah, us);
943 val = min(val, (u32) 0xFFFF);
944 REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val);
947 void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
949 u32 val = ath9k_hw_mac_to_clks(ah, us);
950 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK));
951 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val);
954 void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
956 u32 val = ath9k_hw_mac_to_clks(ah, us);
957 val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS));
958 REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val);
961 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
964 ath_dbg(ath9k_hw_common(ah), XMIT, "bad global tx timeout %u\n",
966 ah->globaltxtimeout = (u32) -1;
969 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
970 ah->globaltxtimeout = tu;
975 void ath9k_hw_init_global_settings(struct ath_hw *ah)
977 struct ath_common *common = ath9k_hw_common(ah);
978 const struct ath9k_channel *chan = ah->curchan;
979 int acktimeout, ctstimeout, ack_offset = 0;
982 int rx_lat = 0, tx_lat = 0, eifs = 0;
985 ath_dbg(ath9k_hw_common(ah), RESET, "ah->misc_mode 0x%x\n",
991 if (ah->misc_mode != 0)
992 REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
994 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1000 if (IS_CHAN_5GHZ(chan))
1005 if (IS_CHAN_HALF_RATE(chan)) {
1009 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1015 } else if (IS_CHAN_QUARTER_RATE(chan)) {
1017 rx_lat = (rx_lat * 4) - 1;
1019 if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1026 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1027 eifs = AR_D_GBL_IFS_EIFS_ASYNC_FIFO;
1028 reg = AR_USEC_ASYNC_FIFO;
1030 eifs = REG_READ(ah, AR_D_GBL_IFS_EIFS)/
1032 reg = REG_READ(ah, AR_USEC);
1034 rx_lat = MS(reg, AR_USEC_RX_LAT);
1035 tx_lat = MS(reg, AR_USEC_TX_LAT);
1037 slottime = ah->slottime;
1040 /* As defined by IEEE 802.11-2007 17.3.8.6 */
1041 slottime += 3 * ah->coverage_class;
1042 acktimeout = slottime + sifstime + ack_offset;
1043 ctstimeout = acktimeout;
1046 * Workaround for early ACK timeouts, add an offset to match the
1047 * initval's 64us ack timeout value. Use 48us for the CTS timeout.
1048 * This was initially only meant to work around an issue with delayed
1049 * BA frames in some implementations, but it has been found to fix ACK
1050 * timeout issues in other cases as well.
1052 if (IS_CHAN_2GHZ(chan) &&
1053 !IS_CHAN_HALF_RATE(chan) && !IS_CHAN_QUARTER_RATE(chan)) {
1054 acktimeout += 64 - sifstime - ah->slottime;
1055 ctstimeout += 48 - sifstime - ah->slottime;
1058 if (ah->dynack.enabled) {
1059 acktimeout = ah->dynack.ackto;
1060 ctstimeout = acktimeout;
1061 slottime = (acktimeout - 3) / 2;
1063 ah->dynack.ackto = acktimeout;
1066 ath9k_hw_set_sifs_time(ah, sifstime);
1067 ath9k_hw_setslottime(ah, slottime);
1068 ath9k_hw_set_ack_timeout(ah, acktimeout);
1069 ath9k_hw_set_cts_timeout(ah, ctstimeout);
1070 if (ah->globaltxtimeout != (u32) -1)
1071 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
1073 REG_WRITE(ah, AR_D_GBL_IFS_EIFS, ath9k_hw_mac_to_clks(ah, eifs));
1074 REG_RMW(ah, AR_USEC,
1075 (common->clockrate - 1) |
1076 SM(rx_lat, AR_USEC_RX_LAT) |
1077 SM(tx_lat, AR_USEC_TX_LAT),
1078 AR_USEC_TX_LAT | AR_USEC_RX_LAT | AR_USEC_USEC);
1081 EXPORT_SYMBOL(ath9k_hw_init_global_settings);
1083 void ath9k_hw_deinit(struct ath_hw *ah)
1085 struct ath_common *common = ath9k_hw_common(ah);
1087 if (common->state < ATH_HW_INITIALIZED)
1090 ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
1092 EXPORT_SYMBOL(ath9k_hw_deinit);
1098 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
1100 u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
1102 if (IS_CHAN_2GHZ(chan))
1110 /****************************************/
1111 /* Reset and Channel Switching Routines */
1112 /****************************************/
1114 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
1116 struct ath_common *common = ath9k_hw_common(ah);
1119 ENABLE_REGWRITE_BUFFER(ah);
1122 * set AHB_MODE not to do cacheline prefetches
1124 if (!AR_SREV_9300_20_OR_LATER(ah))
1125 REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
1128 * let mac dma reads be in 128 byte chunks
1130 REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK);
1132 REGWRITE_BUFFER_FLUSH(ah);
1135 * Restore TX Trigger Level to its pre-reset value.
1136 * The initial value depends on whether aggregation is enabled, and is
1137 * adjusted whenever underruns are detected.
1139 if (!AR_SREV_9300_20_OR_LATER(ah))
1140 REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
1142 ENABLE_REGWRITE_BUFFER(ah);
1145 * let mac dma writes be in 128 byte chunks
1147 REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK);
1150 * Setup receive FIFO threshold to hold off TX activities
1152 REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
1154 if (AR_SREV_9300_20_OR_LATER(ah)) {
1155 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1);
1156 REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1);
1158 ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
1159 ah->caps.rx_status_len);
1163 * reduce the number of usable entries in PCU TXBUF to avoid
1164 * wrap around issues.
1166 if (AR_SREV_9285(ah)) {
1167 /* For AR9285 the number of Fifos are reduced to half.
1168 * So set the usable tx buf size also to half to
1169 * avoid data/delimiter underruns
1171 txbuf_size = AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE;
1172 } else if (AR_SREV_9340_13_OR_LATER(ah)) {
1173 /* Uses fewer entries for AR934x v1.3+ to prevent rx overruns */
1174 txbuf_size = AR_9340_PCU_TXBUF_CTRL_USABLE_SIZE;
1176 txbuf_size = AR_PCU_TXBUF_CTRL_USABLE_SIZE;
1179 if (!AR_SREV_9271(ah))
1180 REG_WRITE(ah, AR_PCU_TXBUF_CTRL, txbuf_size);
1182 REGWRITE_BUFFER_FLUSH(ah);
1184 if (AR_SREV_9300_20_OR_LATER(ah))
1185 ath9k_hw_reset_txstatus_ring(ah);
1188 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
1190 u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC;
1191 u32 set = AR_STA_ID1_KSRCH_MODE;
1194 case NL80211_IFTYPE_ADHOC:
1195 set |= AR_STA_ID1_ADHOC;
1196 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1198 case NL80211_IFTYPE_MESH_POINT:
1199 case NL80211_IFTYPE_AP:
1200 set |= AR_STA_ID1_STA_AP;
1202 case NL80211_IFTYPE_STATION:
1203 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1206 if (!ah->is_monitoring)
1210 REG_RMW(ah, AR_STA_ID1, set, mask);
1213 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
1214 u32 *coef_mantissa, u32 *coef_exponent)
1216 u32 coef_exp, coef_man;
1218 for (coef_exp = 31; coef_exp > 0; coef_exp--)
1219 if ((coef_scaled >> coef_exp) & 0x1)
1222 coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1224 coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1226 *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1227 *coef_exponent = coef_exp - 16;
1231 * call external reset function to reset WMAC if:
1232 * - doing a cold reset
1233 * - we have pending frames in the TX queues.
1235 static bool ath9k_hw_ar9330_reset_war(struct ath_hw *ah, int type)
1239 for (i = 0; i < AR_NUM_QCU; i++) {
1240 npend = ath9k_hw_numtxpending(ah, i);
1245 if (ah->external_reset &&
1246 (npend || type == ATH9K_RESET_COLD)) {
1249 ath_dbg(ath9k_hw_common(ah), RESET,
1250 "reset MAC via external reset\n");
1252 reset_err = ah->external_reset();
1254 ath_err(ath9k_hw_common(ah),
1255 "External reset failed, err=%d\n",
1260 REG_WRITE(ah, AR_RTC_RESET, 1);
1266 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1271 if (AR_SREV_9100(ah)) {
1272 REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK,
1273 AR_RTC_DERIVED_CLK_PERIOD, 1);
1274 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1277 ENABLE_REGWRITE_BUFFER(ah);
1279 if (AR_SREV_9300_20_OR_LATER(ah)) {
1280 REG_WRITE(ah, AR_WA, ah->WARegVal);
1284 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1285 AR_RTC_FORCE_WAKE_ON_INT);
1287 if (AR_SREV_9100(ah)) {
1288 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1289 AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1291 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1292 if (AR_SREV_9340(ah))
1293 tmpReg &= AR9340_INTR_SYNC_LOCAL_TIMEOUT;
1295 tmpReg &= AR_INTR_SYNC_LOCAL_TIMEOUT |
1296 AR_INTR_SYNC_RADM_CPL_TIMEOUT;
1300 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1303 if (!AR_SREV_9300_20_OR_LATER(ah))
1305 REG_WRITE(ah, AR_RC, val);
1307 } else if (!AR_SREV_9300_20_OR_LATER(ah))
1308 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1310 rst_flags = AR_RTC_RC_MAC_WARM;
1311 if (type == ATH9K_RESET_COLD)
1312 rst_flags |= AR_RTC_RC_MAC_COLD;
1315 if (AR_SREV_9330(ah)) {
1316 if (!ath9k_hw_ar9330_reset_war(ah, type))
1320 if (ath9k_hw_mci_is_enabled(ah))
1321 ar9003_mci_check_gpm_offset(ah);
1323 REG_WRITE(ah, AR_RTC_RC, rst_flags);
1325 REGWRITE_BUFFER_FLUSH(ah);
1327 if (AR_SREV_9300_20_OR_LATER(ah))
1329 else if (AR_SREV_9100(ah))
1334 REG_WRITE(ah, AR_RTC_RC, 0);
1335 if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1336 ath_dbg(ath9k_hw_common(ah), RESET, "RTC stuck in MAC reset\n");
1340 if (!AR_SREV_9100(ah))
1341 REG_WRITE(ah, AR_RC, 0);
1343 if (AR_SREV_9100(ah))
1349 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1351 ENABLE_REGWRITE_BUFFER(ah);
1353 if (AR_SREV_9300_20_OR_LATER(ah)) {
1354 REG_WRITE(ah, AR_WA, ah->WARegVal);
1358 REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1359 AR_RTC_FORCE_WAKE_ON_INT);
1361 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1362 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1364 REG_WRITE(ah, AR_RTC_RESET, 0);
1366 REGWRITE_BUFFER_FLUSH(ah);
1370 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
1371 REG_WRITE(ah, AR_RC, 0);
1373 REG_WRITE(ah, AR_RTC_RESET, 1);
1375 if (!ath9k_hw_wait(ah,
1380 ath_dbg(ath9k_hw_common(ah), RESET, "RTC not waking up\n");
1384 return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1387 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1391 if (AR_SREV_9300_20_OR_LATER(ah)) {
1392 REG_WRITE(ah, AR_WA, ah->WARegVal);
1396 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1397 AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1399 if (!ah->reset_power_on)
1400 type = ATH9K_RESET_POWER_ON;
1403 case ATH9K_RESET_POWER_ON:
1404 ret = ath9k_hw_set_reset_power_on(ah);
1406 ah->reset_power_on = true;
1408 case ATH9K_RESET_WARM:
1409 case ATH9K_RESET_COLD:
1410 ret = ath9k_hw_set_reset(ah, type);
1419 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1420 struct ath9k_channel *chan)
1422 int reset_type = ATH9K_RESET_WARM;
1424 if (AR_SREV_9280(ah)) {
1425 if (ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
1426 reset_type = ATH9K_RESET_POWER_ON;
1428 reset_type = ATH9K_RESET_COLD;
1429 } else if (ah->chip_fullsleep || REG_READ(ah, AR_Q_TXE) ||
1430 (REG_READ(ah, AR_CR) & AR_CR_RXE))
1431 reset_type = ATH9K_RESET_COLD;
1433 if (!ath9k_hw_set_reset_reg(ah, reset_type))
1436 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1439 ah->chip_fullsleep = false;
1441 if (AR_SREV_9330(ah))
1442 ar9003_hw_internal_regulator_apply(ah);
1443 ath9k_hw_init_pll(ah, chan);
1448 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1449 struct ath9k_channel *chan)
1451 struct ath_common *common = ath9k_hw_common(ah);
1452 struct ath9k_hw_capabilities *pCap = &ah->caps;
1453 bool band_switch = false, mode_diff = false;
1454 u8 ini_reloaded = 0;
1458 if (pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) {
1459 u32 flags_diff = chan->channelFlags ^ ah->curchan->channelFlags;
1460 band_switch = !!(flags_diff & CHANNEL_5GHZ);
1461 mode_diff = !!(flags_diff & ~CHANNEL_HT);
1464 for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1465 if (ath9k_hw_numtxpending(ah, qnum)) {
1466 ath_dbg(common, QUEUE,
1467 "Transmit frames pending on queue %d\n", qnum);
1472 if (!ath9k_hw_rfbus_req(ah)) {
1473 ath_err(common, "Could not kill baseband RX\n");
1477 if (band_switch || mode_diff) {
1478 ath9k_hw_mark_phy_inactive(ah);
1482 ath9k_hw_init_pll(ah, chan);
1484 if (ath9k_hw_fast_chan_change(ah, chan, &ini_reloaded)) {
1485 ath_err(common, "Failed to do fast channel change\n");
1490 ath9k_hw_set_channel_regs(ah, chan);
1492 r = ath9k_hw_rf_set_freq(ah, chan);
1494 ath_err(common, "Failed to set channel\n");
1497 ath9k_hw_set_clockrate(ah);
1498 ath9k_hw_apply_txpower(ah, chan, false);
1500 ath9k_hw_set_delta_slope(ah, chan);
1501 ath9k_hw_spur_mitigate_freq(ah, chan);
1503 if (band_switch || ini_reloaded)
1504 ah->eep_ops->set_board_values(ah, chan);
1506 ath9k_hw_init_bb(ah, chan);
1507 ath9k_hw_rfbus_done(ah);
1509 if (band_switch || ini_reloaded) {
1510 ah->ah_flags |= AH_FASTCC;
1511 ath9k_hw_init_cal(ah, chan);
1512 ah->ah_flags &= ~AH_FASTCC;
1518 static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
1520 u32 gpio_mask = ah->gpio_mask;
1523 for (i = 0; gpio_mask; i++, gpio_mask >>= 1) {
1524 if (!(gpio_mask & 1))
1527 ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
1528 ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
1532 void ath9k_hw_check_nav(struct ath_hw *ah)
1534 struct ath_common *common = ath9k_hw_common(ah);
1537 val = REG_READ(ah, AR_NAV);
1538 if (val != 0xdeadbeef && val > 0x7fff) {
1539 ath_dbg(common, BSTUCK, "Abnormal NAV: 0x%x\n", val);
1540 REG_WRITE(ah, AR_NAV, 0);
1543 EXPORT_SYMBOL(ath9k_hw_check_nav);
1545 bool ath9k_hw_check_alive(struct ath_hw *ah)
1550 if (AR_SREV_9300(ah))
1551 return !ath9k_hw_detect_mac_hang(ah);
1553 if (AR_SREV_9285_12_OR_LATER(ah))
1556 last_val = REG_READ(ah, AR_OBS_BUS_1);
1558 reg = REG_READ(ah, AR_OBS_BUS_1);
1559 if (reg != last_val)
1564 if ((reg & 0x7E7FFFEF) == 0x00702400)
1567 switch (reg & 0x7E000B00) {
1575 } while (count-- > 0);
1579 EXPORT_SYMBOL(ath9k_hw_check_alive);
1581 static void ath9k_hw_init_mfp(struct ath_hw *ah)
1583 /* Setup MFP options for CCMP */
1584 if (AR_SREV_9280_20_OR_LATER(ah)) {
1585 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1586 * frames when constructing CCMP AAD. */
1587 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
1589 ah->sw_mgmt_crypto = false;
1590 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1591 /* Disable hardware crypto for management frames */
1592 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
1593 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
1594 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1595 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
1596 ah->sw_mgmt_crypto = true;
1598 ah->sw_mgmt_crypto = true;
1602 static void ath9k_hw_reset_opmode(struct ath_hw *ah,
1603 u32 macStaId1, u32 saveDefAntenna)
1605 struct ath_common *common = ath9k_hw_common(ah);
1607 ENABLE_REGWRITE_BUFFER(ah);
1609 REG_RMW(ah, AR_STA_ID1, macStaId1
1610 | AR_STA_ID1_RTS_USE_DEF
1611 | ah->sta_id1_defaults,
1612 ~AR_STA_ID1_SADH_MASK);
1613 ath_hw_setbssidmask(common);
1614 REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
1615 ath9k_hw_write_associd(ah);
1616 REG_WRITE(ah, AR_ISR, ~0);
1617 REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
1619 REGWRITE_BUFFER_FLUSH(ah);
1621 ath9k_hw_set_operating_mode(ah, ah->opmode);
1624 static void ath9k_hw_init_queues(struct ath_hw *ah)
1628 ENABLE_REGWRITE_BUFFER(ah);
1630 for (i = 0; i < AR_NUM_DCU; i++)
1631 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
1633 REGWRITE_BUFFER_FLUSH(ah);
1636 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
1637 ath9k_hw_resettxqueue(ah, i);
1641 * For big endian systems turn on swapping for descriptors
1643 static void ath9k_hw_init_desc(struct ath_hw *ah)
1645 struct ath_common *common = ath9k_hw_common(ah);
1647 if (AR_SREV_9100(ah)) {
1649 mask = REG_READ(ah, AR_CFG);
1650 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
1651 ath_dbg(common, RESET, "CFG Byte Swap Set 0x%x\n",
1654 mask = INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
1655 REG_WRITE(ah, AR_CFG, mask);
1656 ath_dbg(common, RESET, "Setting CFG 0x%x\n",
1657 REG_READ(ah, AR_CFG));
1660 if (common->bus_ops->ath_bus_type == ATH_USB) {
1661 /* Configure AR9271 target WLAN */
1662 if (AR_SREV_9271(ah))
1663 REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
1665 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1668 else if (AR_SREV_9330(ah) || AR_SREV_9340(ah) ||
1669 AR_SREV_9550(ah) || AR_SREV_9531(ah))
1670 REG_RMW(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB, 0);
1672 REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
1678 * Fast channel change:
1679 * (Change synthesizer based on channel freq without resetting chip)
1681 static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan)
1683 struct ath_common *common = ath9k_hw_common(ah);
1684 struct ath9k_hw_capabilities *pCap = &ah->caps;
1687 if (AR_SREV_9280(ah) && common->bus_ops->ath_bus_type == ATH_PCI)
1690 if (ah->chip_fullsleep)
1696 if (chan->channel == ah->curchan->channel)
1699 if ((ah->curchan->channelFlags | chan->channelFlags) &
1700 (CHANNEL_HALF | CHANNEL_QUARTER))
1704 * If cross-band fcc is not supoprted, bail out if channelFlags differ.
1706 if (!(pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) &&
1707 ((chan->channelFlags ^ ah->curchan->channelFlags) & ~CHANNEL_HT))
1710 if (!ath9k_hw_check_alive(ah))
1714 * For AR9462, make sure that calibration data for
1715 * re-using are present.
1717 if (AR_SREV_9462(ah) && (ah->caldata &&
1718 (!test_bit(TXIQCAL_DONE, &ah->caldata->cal_flags) ||
1719 !test_bit(TXCLCAL_DONE, &ah->caldata->cal_flags) ||
1720 !test_bit(RTT_DONE, &ah->caldata->cal_flags))))
1723 ath_dbg(common, RESET, "FastChannelChange for %d -> %d\n",
1724 ah->curchan->channel, chan->channel);
1726 ret = ath9k_hw_channel_change(ah, chan);
1730 if (ath9k_hw_mci_is_enabled(ah))
1731 ar9003_mci_2g5g_switch(ah, false);
1733 ath9k_hw_loadnf(ah, ah->curchan);
1734 ath9k_hw_start_nfcal(ah, true);
1736 if (AR_SREV_9271(ah))
1737 ar9002_hw_load_ani_reg(ah, chan);
1744 u32 ath9k_hw_get_tsf_offset(struct timespec *last, struct timespec *cur)
1750 getrawmonotonic(&ts);
1754 usec = cur->tv_sec * 1000000ULL + cur->tv_nsec / 1000;
1755 usec -= last->tv_sec * 1000000ULL + last->tv_nsec / 1000;
1759 EXPORT_SYMBOL(ath9k_hw_get_tsf_offset);
1761 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
1762 struct ath9k_hw_cal_data *caldata, bool fastcc)
1764 struct ath_common *common = ath9k_hw_common(ah);
1771 bool start_mci_reset = false;
1772 bool save_fullsleep = ah->chip_fullsleep;
1774 if (ath9k_hw_mci_is_enabled(ah)) {
1775 start_mci_reset = ar9003_mci_start_reset(ah, chan);
1776 if (start_mci_reset)
1780 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1783 if (ah->curchan && !ah->chip_fullsleep)
1784 ath9k_hw_getnf(ah, ah->curchan);
1786 ah->caldata = caldata;
1787 if (caldata && (chan->channel != caldata->channel ||
1788 chan->channelFlags != caldata->channelFlags)) {
1789 /* Operating channel changed, reset channel calibration data */
1790 memset(caldata, 0, sizeof(*caldata));
1791 ath9k_init_nfcal_hist_buffer(ah, chan);
1792 } else if (caldata) {
1793 clear_bit(PAPRD_PACKET_SENT, &caldata->cal_flags);
1795 ah->noise = ath9k_hw_getchan_noise(ah, chan, chan->noisefloor);
1798 r = ath9k_hw_do_fastcc(ah, chan);
1803 if (ath9k_hw_mci_is_enabled(ah))
1804 ar9003_mci_stop_bt(ah, save_fullsleep);
1806 saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
1807 if (saveDefAntenna == 0)
1810 macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
1812 /* Save TSF before chip reset, a cold reset clears it */
1813 tsf = ath9k_hw_gettsf64(ah);
1814 usec = ktime_to_us(ktime_get_raw());
1816 saveLedState = REG_READ(ah, AR_CFG_LED) &
1817 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
1818 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
1820 ath9k_hw_mark_phy_inactive(ah);
1822 ah->paprd_table_write_done = false;
1824 /* Only required on the first reset */
1825 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1827 AR9271_RESET_POWER_DOWN_CONTROL,
1828 AR9271_RADIO_RF_RST);
1832 if (!ath9k_hw_chip_reset(ah, chan)) {
1833 ath_err(common, "Chip reset failed\n");
1837 /* Only required on the first reset */
1838 if (AR_SREV_9271(ah) && ah->htc_reset_init) {
1839 ah->htc_reset_init = false;
1841 AR9271_RESET_POWER_DOWN_CONTROL,
1842 AR9271_GATE_MAC_CTL);
1847 usec = ktime_to_us(ktime_get_raw()) - usec;
1848 ath9k_hw_settsf64(ah, tsf + usec);
1850 if (AR_SREV_9280_20_OR_LATER(ah))
1851 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
1853 if (!AR_SREV_9300_20_OR_LATER(ah))
1854 ar9002_hw_enable_async_fifo(ah);
1856 r = ath9k_hw_process_ini(ah, chan);
1860 ath9k_hw_set_rfmode(ah, chan);
1862 if (ath9k_hw_mci_is_enabled(ah))
1863 ar9003_mci_reset(ah, false, IS_CHAN_2GHZ(chan), save_fullsleep);
1866 * Some AR91xx SoC devices frequently fail to accept TSF writes
1867 * right after the chip reset. When that happens, write a new
1868 * value after the initvals have been applied, with an offset
1869 * based on measured time difference
1871 if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
1873 ath9k_hw_settsf64(ah, tsf);
1876 ath9k_hw_init_mfp(ah);
1878 ath9k_hw_set_delta_slope(ah, chan);
1879 ath9k_hw_spur_mitigate_freq(ah, chan);
1880 ah->eep_ops->set_board_values(ah, chan);
1882 ath9k_hw_reset_opmode(ah, macStaId1, saveDefAntenna);
1884 r = ath9k_hw_rf_set_freq(ah, chan);
1888 ath9k_hw_set_clockrate(ah);
1890 ath9k_hw_init_queues(ah);
1891 ath9k_hw_init_interrupt_masks(ah, ah->opmode);
1892 ath9k_hw_ani_cache_ini_regs(ah);
1893 ath9k_hw_init_qos(ah);
1895 if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
1896 ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
1898 ath9k_hw_init_global_settings(ah);
1900 if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) {
1901 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
1902 AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
1903 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
1904 AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
1905 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
1906 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
1909 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
1911 ath9k_hw_set_dma(ah);
1913 if (!ath9k_hw_mci_is_enabled(ah))
1914 REG_WRITE(ah, AR_OBS, 8);
1916 if (ah->config.rx_intr_mitigation) {
1917 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, ah->config.rimt_last);
1918 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, ah->config.rimt_first);
1921 if (ah->config.tx_intr_mitigation) {
1922 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300);
1923 REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750);
1926 ath9k_hw_init_bb(ah, chan);
1929 clear_bit(TXIQCAL_DONE, &caldata->cal_flags);
1930 clear_bit(TXCLCAL_DONE, &caldata->cal_flags);
1932 if (!ath9k_hw_init_cal(ah, chan))
1935 if (ath9k_hw_mci_is_enabled(ah) && ar9003_mci_end_reset(ah, chan, caldata))
1938 ENABLE_REGWRITE_BUFFER(ah);
1940 ath9k_hw_restore_chainmask(ah);
1941 REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
1943 REGWRITE_BUFFER_FLUSH(ah);
1945 ath9k_hw_init_desc(ah);
1947 if (ath9k_hw_btcoex_is_enabled(ah))
1948 ath9k_hw_btcoex_enable(ah);
1950 if (ath9k_hw_mci_is_enabled(ah))
1951 ar9003_mci_check_bt(ah);
1953 ath9k_hw_loadnf(ah, chan);
1954 ath9k_hw_start_nfcal(ah, true);
1956 if (AR_SREV_9300_20_OR_LATER(ah))
1957 ar9003_hw_bb_watchdog_config(ah);
1959 if (ah->config.hw_hang_checks & HW_PHYRESTART_CLC_WAR)
1960 ar9003_hw_disable_phy_restart(ah);
1962 ath9k_hw_apply_gpio_override(ah);
1964 if (AR_SREV_9565(ah) && common->bt_ant_diversity)
1965 REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON);
1967 if (ah->hw->conf.radar_enabled) {
1968 /* set HW specific DFS configuration */
1969 ah->radar_conf.ext_channel = IS_CHAN_HT40(chan);
1970 ath9k_hw_set_radar_params(ah);
1975 EXPORT_SYMBOL(ath9k_hw_reset);
1977 /******************************/
1978 /* Power Management (Chipset) */
1979 /******************************/
1982 * Notify Power Mgt is disabled in self-generated frames.
1983 * If requested, force chip to sleep.
1985 static void ath9k_set_power_sleep(struct ath_hw *ah)
1987 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
1989 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
1990 REG_CLR_BIT(ah, AR_TIMER_MODE, 0xff);
1991 REG_CLR_BIT(ah, AR_NDP2_TIMER_MODE, 0xff);
1992 REG_CLR_BIT(ah, AR_SLP32_INC, 0xfffff);
1993 /* xxx Required for WLAN only case ? */
1994 REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, 0);
1999 * Clear the RTC force wake bit to allow the
2000 * mac to go to sleep.
2002 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
2004 if (ath9k_hw_mci_is_enabled(ah))
2007 if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah))
2008 REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
2010 /* Shutdown chip. Active low */
2011 if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah)) {
2012 REG_CLR_BIT(ah, AR_RTC_RESET, AR_RTC_RESET_EN);
2016 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
2017 if (AR_SREV_9300_20_OR_LATER(ah))
2018 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
2022 * Notify Power Management is enabled in self-generating
2023 * frames. If request, set power mode of chip to
2024 * auto/normal. Duration in units of 128us (1/8 TU).
2026 static void ath9k_set_power_network_sleep(struct ath_hw *ah)
2028 struct ath9k_hw_capabilities *pCap = &ah->caps;
2030 REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2032 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
2033 /* Set WakeOnInterrupt bit; clear ForceWake bit */
2034 REG_WRITE(ah, AR_RTC_FORCE_WAKE,
2035 AR_RTC_FORCE_WAKE_ON_INT);
2038 /* When chip goes into network sleep, it could be waken
2039 * up by MCI_INT interrupt caused by BT's HW messages
2040 * (LNA_xxx, CONT_xxx) which chould be in a very fast
2041 * rate (~100us). This will cause chip to leave and
2042 * re-enter network sleep mode frequently, which in
2043 * consequence will have WLAN MCI HW to generate lots of
2044 * SYS_WAKING and SYS_SLEEPING messages which will make
2045 * BT CPU to busy to process.
2047 if (ath9k_hw_mci_is_enabled(ah))
2048 REG_CLR_BIT(ah, AR_MCI_INTERRUPT_RX_MSG_EN,
2049 AR_MCI_INTERRUPT_RX_HW_MSG_MASK);
2051 * Clear the RTC force wake bit to allow the
2052 * mac to go to sleep.
2054 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN);
2056 if (ath9k_hw_mci_is_enabled(ah))
2060 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
2061 if (AR_SREV_9300_20_OR_LATER(ah))
2062 REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
2065 static bool ath9k_hw_set_power_awake(struct ath_hw *ah)
2070 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
2071 if (AR_SREV_9300_20_OR_LATER(ah)) {
2072 REG_WRITE(ah, AR_WA, ah->WARegVal);
2076 if ((REG_READ(ah, AR_RTC_STATUS) &
2077 AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
2078 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
2081 if (!AR_SREV_9300_20_OR_LATER(ah))
2082 ath9k_hw_init_pll(ah, NULL);
2084 if (AR_SREV_9100(ah))
2085 REG_SET_BIT(ah, AR_RTC_RESET,
2088 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2089 AR_RTC_FORCE_WAKE_EN);
2090 if (AR_SREV_9100(ah))
2095 for (i = POWER_UP_TIME / 50; i > 0; i--) {
2096 val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
2097 if (val == AR_RTC_STATUS_ON)
2100 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2101 AR_RTC_FORCE_WAKE_EN);
2104 ath_err(ath9k_hw_common(ah),
2105 "Failed to wakeup in %uus\n",
2106 POWER_UP_TIME / 20);
2110 if (ath9k_hw_mci_is_enabled(ah))
2111 ar9003_mci_set_power_awake(ah);
2113 REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2118 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
2120 struct ath_common *common = ath9k_hw_common(ah);
2122 static const char *modes[] = {
2129 if (ah->power_mode == mode)
2132 ath_dbg(common, RESET, "%s -> %s\n",
2133 modes[ah->power_mode], modes[mode]);
2136 case ATH9K_PM_AWAKE:
2137 status = ath9k_hw_set_power_awake(ah);
2139 case ATH9K_PM_FULL_SLEEP:
2140 if (ath9k_hw_mci_is_enabled(ah))
2141 ar9003_mci_set_full_sleep(ah);
2143 ath9k_set_power_sleep(ah);
2144 ah->chip_fullsleep = true;
2146 case ATH9K_PM_NETWORK_SLEEP:
2147 ath9k_set_power_network_sleep(ah);
2150 ath_err(common, "Unknown power mode %u\n", mode);
2153 ah->power_mode = mode;
2156 * XXX: If this warning never comes up after a while then
2157 * simply keep the ATH_DBG_WARN_ON_ONCE() but make
2158 * ath9k_hw_setpower() return type void.
2161 if (!(ah->ah_flags & AH_UNPLUGGED))
2162 ATH_DBG_WARN_ON_ONCE(!status);
2166 EXPORT_SYMBOL(ath9k_hw_setpower);
2168 /*******************/
2169 /* Beacon Handling */
2170 /*******************/
2172 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
2176 ENABLE_REGWRITE_BUFFER(ah);
2178 switch (ah->opmode) {
2179 case NL80211_IFTYPE_ADHOC:
2180 REG_SET_BIT(ah, AR_TXCFG,
2181 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
2182 case NL80211_IFTYPE_MESH_POINT:
2183 case NL80211_IFTYPE_AP:
2184 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
2185 REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
2186 TU_TO_USEC(ah->config.dma_beacon_response_time));
2187 REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
2188 TU_TO_USEC(ah->config.sw_beacon_response_time));
2190 AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
2193 ath_dbg(ath9k_hw_common(ah), BEACON,
2194 "%s: unsupported opmode: %d\n", __func__, ah->opmode);
2199 REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
2200 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
2201 REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
2203 REGWRITE_BUFFER_FLUSH(ah);
2205 REG_SET_BIT(ah, AR_TIMER_MODE, flags);
2207 EXPORT_SYMBOL(ath9k_hw_beaconinit);
2209 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
2210 const struct ath9k_beacon_state *bs)
2212 u32 nextTbtt, beaconintval, dtimperiod, beacontimeout;
2213 struct ath9k_hw_capabilities *pCap = &ah->caps;
2214 struct ath_common *common = ath9k_hw_common(ah);
2216 ENABLE_REGWRITE_BUFFER(ah);
2218 REG_WRITE(ah, AR_NEXT_TBTT_TIMER, bs->bs_nexttbtt);
2219 REG_WRITE(ah, AR_BEACON_PERIOD, bs->bs_intval);
2220 REG_WRITE(ah, AR_DMA_BEACON_PERIOD, bs->bs_intval);
2222 REGWRITE_BUFFER_FLUSH(ah);
2224 REG_RMW_FIELD(ah, AR_RSSI_THR,
2225 AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold);
2227 beaconintval = bs->bs_intval;
2229 if (bs->bs_sleepduration > beaconintval)
2230 beaconintval = bs->bs_sleepduration;
2232 dtimperiod = bs->bs_dtimperiod;
2233 if (bs->bs_sleepduration > dtimperiod)
2234 dtimperiod = bs->bs_sleepduration;
2236 if (beaconintval == dtimperiod)
2237 nextTbtt = bs->bs_nextdtim;
2239 nextTbtt = bs->bs_nexttbtt;
2241 ath_dbg(common, BEACON, "next DTIM %d\n", bs->bs_nextdtim);
2242 ath_dbg(common, BEACON, "next beacon %d\n", nextTbtt);
2243 ath_dbg(common, BEACON, "beacon period %d\n", beaconintval);
2244 ath_dbg(common, BEACON, "DTIM period %d\n", dtimperiod);
2246 ENABLE_REGWRITE_BUFFER(ah);
2248 REG_WRITE(ah, AR_NEXT_DTIM, bs->bs_nextdtim - SLEEP_SLOP);
2249 REG_WRITE(ah, AR_NEXT_TIM, nextTbtt - SLEEP_SLOP);
2251 REG_WRITE(ah, AR_SLEEP1,
2252 SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT)
2253 | AR_SLEEP1_ASSUME_DTIM);
2255 if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)
2256 beacontimeout = (BEACON_TIMEOUT_VAL << 3);
2258 beacontimeout = MIN_BEACON_TIMEOUT_VAL;
2260 REG_WRITE(ah, AR_SLEEP2,
2261 SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT));
2263 REG_WRITE(ah, AR_TIM_PERIOD, beaconintval);
2264 REG_WRITE(ah, AR_DTIM_PERIOD, dtimperiod);
2266 REGWRITE_BUFFER_FLUSH(ah);
2268 REG_SET_BIT(ah, AR_TIMER_MODE,
2269 AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN |
2272 /* TSF Out of Range Threshold */
2273 REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold);
2275 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers);
2277 /*******************/
2278 /* HW Capabilities */
2279 /*******************/
2281 static u8 fixup_chainmask(u8 chip_chainmask, u8 eeprom_chainmask)
2283 eeprom_chainmask &= chip_chainmask;
2284 if (eeprom_chainmask)
2285 return eeprom_chainmask;
2287 return chip_chainmask;
2291 * ath9k_hw_dfs_tested - checks if DFS has been tested with used chipset
2292 * @ah: the atheros hardware data structure
2294 * We enable DFS support upstream on chipsets which have passed a series
2295 * of tests. The testing requirements are going to be documented. Desired
2296 * test requirements are documented at:
2298 * http://wireless.kernel.org/en/users/Drivers/ath9k/dfs
2300 * Once a new chipset gets properly tested an individual commit can be used
2301 * to document the testing for DFS for that chipset.
2303 static bool ath9k_hw_dfs_tested(struct ath_hw *ah)
2306 switch (ah->hw_version.macVersion) {
2307 /* for temporary testing DFS with 9280 */
2308 case AR_SREV_VERSION_9280:
2309 /* AR9580 will likely be our first target to get testing on */
2310 case AR_SREV_VERSION_9580:
2317 int ath9k_hw_fill_cap_info(struct ath_hw *ah)
2319 struct ath9k_hw_capabilities *pCap = &ah->caps;
2320 struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
2321 struct ath_common *common = ath9k_hw_common(ah);
2322 unsigned int chip_chainmask;
2325 u8 ant_div_ctl1, tx_chainmask, rx_chainmask;
2327 eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
2328 regulatory->current_rd = eeval;
2330 if (ah->opmode != NL80211_IFTYPE_AP &&
2331 ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) {
2332 if (regulatory->current_rd == 0x64 ||
2333 regulatory->current_rd == 0x65)
2334 regulatory->current_rd += 5;
2335 else if (regulatory->current_rd == 0x41)
2336 regulatory->current_rd = 0x43;
2337 ath_dbg(common, REGULATORY, "regdomain mapped to 0x%x\n",
2338 regulatory->current_rd);
2341 eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
2342 if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
2344 "no band has been marked as supported in EEPROM\n");
2348 if (eeval & AR5416_OPFLAGS_11A)
2349 pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
2351 if (eeval & AR5416_OPFLAGS_11G)
2352 pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
2354 if (AR_SREV_9485(ah) ||
2359 else if (AR_SREV_9462(ah))
2361 else if (!AR_SREV_9280_20_OR_LATER(ah))
2363 else if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9340(ah))
2368 pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK);
2370 * For AR9271 we will temporarilly uses the rx chainmax as read from
2373 if ((ah->hw_version.devid == AR5416_DEVID_PCI) &&
2374 !(eeval & AR5416_OPFLAGS_11A) &&
2375 !(AR_SREV_9271(ah)))
2376 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
2377 pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
2378 else if (AR_SREV_9100(ah))
2379 pCap->rx_chainmask = 0x7;
2381 /* Use rx_chainmask from EEPROM. */
2382 pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
2384 pCap->tx_chainmask = fixup_chainmask(chip_chainmask, pCap->tx_chainmask);
2385 pCap->rx_chainmask = fixup_chainmask(chip_chainmask, pCap->rx_chainmask);
2386 ah->txchainmask = pCap->tx_chainmask;
2387 ah->rxchainmask = pCap->rx_chainmask;
2389 ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
2391 /* enable key search for every frame in an aggregate */
2392 if (AR_SREV_9300_20_OR_LATER(ah))
2393 ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
2395 common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
2397 if (ah->hw_version.devid != AR2427_DEVID_PCIE)
2398 pCap->hw_caps |= ATH9K_HW_CAP_HT;
2400 pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
2402 if (AR_SREV_9271(ah))
2403 pCap->num_gpio_pins = AR9271_NUM_GPIO;
2404 else if (AR_DEVID_7010(ah))
2405 pCap->num_gpio_pins = AR7010_NUM_GPIO;
2406 else if (AR_SREV_9300_20_OR_LATER(ah))
2407 pCap->num_gpio_pins = AR9300_NUM_GPIO;
2408 else if (AR_SREV_9287_11_OR_LATER(ah))
2409 pCap->num_gpio_pins = AR9287_NUM_GPIO;
2410 else if (AR_SREV_9285_12_OR_LATER(ah))
2411 pCap->num_gpio_pins = AR9285_NUM_GPIO;
2412 else if (AR_SREV_9280_20_OR_LATER(ah))
2413 pCap->num_gpio_pins = AR928X_NUM_GPIO;
2415 pCap->num_gpio_pins = AR_NUM_GPIO;
2417 if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah))
2418 pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX;
2420 pCap->rts_aggr_limit = (8 * 1024);
2422 #ifdef CONFIG_ATH9K_RFKILL
2423 ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
2424 if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
2426 MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL);
2427 ah->rfkill_polarity =
2428 MS(ah->rfsilent, EEP_RFSILENT_POLARITY);
2430 pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
2433 if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah))
2434 pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
2436 pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
2438 if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
2439 pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
2441 pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
2443 if (AR_SREV_9300_20_OR_LATER(ah)) {
2444 pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK;
2445 if (!AR_SREV_9330(ah) && !AR_SREV_9485(ah) && !AR_SREV_9565(ah))
2446 pCap->hw_caps |= ATH9K_HW_CAP_LDPC;
2448 pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH;
2449 pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH;
2450 pCap->rx_status_len = sizeof(struct ar9003_rxs);
2451 pCap->tx_desc_len = sizeof(struct ar9003_txc);
2452 pCap->txs_len = sizeof(struct ar9003_txs);
2454 pCap->tx_desc_len = sizeof(struct ath_desc);
2455 if (AR_SREV_9280_20(ah))
2456 pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK;
2459 if (AR_SREV_9300_20_OR_LATER(ah))
2460 pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED;
2462 if (AR_SREV_9300_20_OR_LATER(ah))
2463 ah->ent_mode = REG_READ(ah, AR_ENT_OTP);
2465 if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah))
2466 pCap->hw_caps |= ATH9K_HW_CAP_SGI_20;
2468 if (AR_SREV_9285(ah)) {
2469 if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) {
2471 ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2472 if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1)) {
2473 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2474 ath_info(common, "Enable LNA combining\n");
2479 if (AR_SREV_9300_20_OR_LATER(ah)) {
2480 if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE))
2481 pCap->hw_caps |= ATH9K_HW_CAP_APM;
2484 if (AR_SREV_9330(ah) || AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
2485 ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
2486 if ((ant_div_ctl1 >> 0x6) == 0x3) {
2487 pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
2488 ath_info(common, "Enable LNA combining\n");
2492 if (ath9k_hw_dfs_tested(ah))
2493 pCap->hw_caps |= ATH9K_HW_CAP_DFS;
2495 tx_chainmask = pCap->tx_chainmask;
2496 rx_chainmask = pCap->rx_chainmask;
2497 while (tx_chainmask || rx_chainmask) {
2498 if (tx_chainmask & BIT(0))
2499 pCap->max_txchains++;
2500 if (rx_chainmask & BIT(0))
2501 pCap->max_rxchains++;
2507 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
2508 if (!(ah->ent_mode & AR_ENT_OTP_49GHZ_DISABLE))
2509 pCap->hw_caps |= ATH9K_HW_CAP_MCI;
2511 if (AR_SREV_9462_20_OR_LATER(ah))
2512 pCap->hw_caps |= ATH9K_HW_CAP_RTT;
2515 if (AR_SREV_9462(ah))
2516 pCap->hw_caps |= ATH9K_HW_WOW_DEVICE_CAPABLE;
2518 if (AR_SREV_9300_20_OR_LATER(ah) &&
2519 ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
2520 pCap->hw_caps |= ATH9K_HW_CAP_PAPRD;
2525 /****************************/
2526 /* GPIO / RFKILL / Antennae */
2527 /****************************/
2529 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah,
2533 u32 gpio_shift, tmp;
2536 addr = AR_GPIO_OUTPUT_MUX3;
2538 addr = AR_GPIO_OUTPUT_MUX2;
2540 addr = AR_GPIO_OUTPUT_MUX1;
2542 gpio_shift = (gpio % 6) * 5;
2544 if (AR_SREV_9280_20_OR_LATER(ah)
2545 || (addr != AR_GPIO_OUTPUT_MUX1)) {
2546 REG_RMW(ah, addr, (type << gpio_shift),
2547 (0x1f << gpio_shift));
2549 tmp = REG_READ(ah, addr);
2550 tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0);
2551 tmp &= ~(0x1f << gpio_shift);
2552 tmp |= (type << gpio_shift);
2553 REG_WRITE(ah, addr, tmp);
2557 void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio)
2561 BUG_ON(gpio >= ah->caps.num_gpio_pins);
2563 if (AR_DEVID_7010(ah)) {
2565 REG_RMW(ah, AR7010_GPIO_OE,
2566 (AR7010_GPIO_OE_AS_INPUT << gpio_shift),
2567 (AR7010_GPIO_OE_MASK << gpio_shift));
2571 gpio_shift = gpio << 1;
2574 (AR_GPIO_OE_OUT_DRV_NO << gpio_shift),
2575 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2577 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input);
2579 u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio)
2581 #define MS_REG_READ(x, y) \
2582 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2584 if (gpio >= ah->caps.num_gpio_pins)
2587 if (AR_DEVID_7010(ah)) {
2589 val = REG_READ(ah, AR7010_GPIO_IN);
2590 return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0;
2591 } else if (AR_SREV_9300_20_OR_LATER(ah))
2592 return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) &
2593 AR_GPIO_BIT(gpio)) != 0;
2594 else if (AR_SREV_9271(ah))
2595 return MS_REG_READ(AR9271, gpio) != 0;
2596 else if (AR_SREV_9287_11_OR_LATER(ah))
2597 return MS_REG_READ(AR9287, gpio) != 0;
2598 else if (AR_SREV_9285_12_OR_LATER(ah))
2599 return MS_REG_READ(AR9285, gpio) != 0;
2600 else if (AR_SREV_9280_20_OR_LATER(ah))
2601 return MS_REG_READ(AR928X, gpio) != 0;
2603 return MS_REG_READ(AR, gpio) != 0;
2605 EXPORT_SYMBOL(ath9k_hw_gpio_get);
2607 void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio,
2612 if (AR_DEVID_7010(ah)) {
2614 REG_RMW(ah, AR7010_GPIO_OE,
2615 (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift),
2616 (AR7010_GPIO_OE_MASK << gpio_shift));
2620 ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type);
2621 gpio_shift = 2 * gpio;
2624 (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift),
2625 (AR_GPIO_OE_OUT_DRV << gpio_shift));
2627 EXPORT_SYMBOL(ath9k_hw_cfg_output);
2629 void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
2631 if (AR_DEVID_7010(ah)) {
2633 REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio),
2638 if (AR_SREV_9271(ah))
2641 REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
2644 EXPORT_SYMBOL(ath9k_hw_set_gpio);
2646 void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
2648 REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));
2650 EXPORT_SYMBOL(ath9k_hw_setantenna);
2652 /*********************/
2653 /* General Operation */
2654 /*********************/
2656 u32 ath9k_hw_getrxfilter(struct ath_hw *ah)
2658 u32 bits = REG_READ(ah, AR_RX_FILTER);
2659 u32 phybits = REG_READ(ah, AR_PHY_ERR);
2661 if (phybits & AR_PHY_ERR_RADAR)
2662 bits |= ATH9K_RX_FILTER_PHYRADAR;
2663 if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING))
2664 bits |= ATH9K_RX_FILTER_PHYERR;
2668 EXPORT_SYMBOL(ath9k_hw_getrxfilter);
2670 void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
2674 ENABLE_REGWRITE_BUFFER(ah);
2676 if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
2677 bits |= ATH9K_RX_FILTER_CONTROL_WRAPPER;
2679 REG_WRITE(ah, AR_RX_FILTER, bits);
2682 if (bits & ATH9K_RX_FILTER_PHYRADAR)
2683 phybits |= AR_PHY_ERR_RADAR;
2684 if (bits & ATH9K_RX_FILTER_PHYERR)
2685 phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING;
2686 REG_WRITE(ah, AR_PHY_ERR, phybits);
2689 REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2691 REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
2693 REGWRITE_BUFFER_FLUSH(ah);
2695 EXPORT_SYMBOL(ath9k_hw_setrxfilter);
2697 bool ath9k_hw_phy_disable(struct ath_hw *ah)
2699 if (ath9k_hw_mci_is_enabled(ah))
2700 ar9003_mci_bt_gain_ctrl(ah);
2702 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
2705 ath9k_hw_init_pll(ah, NULL);
2706 ah->htc_reset_init = true;
2709 EXPORT_SYMBOL(ath9k_hw_phy_disable);
2711 bool ath9k_hw_disable(struct ath_hw *ah)
2713 if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2716 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD))
2719 ath9k_hw_init_pll(ah, NULL);
2722 EXPORT_SYMBOL(ath9k_hw_disable);
2724 static int get_antenna_gain(struct ath_hw *ah, struct ath9k_channel *chan)
2726 enum eeprom_param gain_param;
2728 if (IS_CHAN_2GHZ(chan))
2729 gain_param = EEP_ANTENNA_GAIN_2G;
2731 gain_param = EEP_ANTENNA_GAIN_5G;
2733 return ah->eep_ops->get_eeprom(ah, gain_param);
2736 void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan,
2739 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2740 struct ieee80211_channel *channel;
2741 int chan_pwr, new_pwr, max_gain;
2742 int ant_gain, ant_reduction = 0;
2747 channel = chan->chan;
2748 chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER);
2749 new_pwr = min_t(int, chan_pwr, reg->power_limit);
2750 max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2;
2752 ant_gain = get_antenna_gain(ah, chan);
2753 if (ant_gain > max_gain)
2754 ant_reduction = ant_gain - max_gain;
2756 ah->eep_ops->set_txpower(ah, chan,
2757 ath9k_regd_get_ctl(reg, chan),
2758 ant_reduction, new_pwr, test);
2761 void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
2763 struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
2764 struct ath9k_channel *chan = ah->curchan;
2765 struct ieee80211_channel *channel = chan->chan;
2767 reg->power_limit = min_t(u32, limit, MAX_RATE_POWER);
2769 channel->max_power = MAX_RATE_POWER / 2;
2771 ath9k_hw_apply_txpower(ah, chan, test);
2774 channel->max_power = DIV_ROUND_UP(reg->max_power_level, 2);
2776 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit);
2778 void ath9k_hw_setopmode(struct ath_hw *ah)
2780 ath9k_hw_set_operating_mode(ah, ah->opmode);
2782 EXPORT_SYMBOL(ath9k_hw_setopmode);
2784 void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1)
2786 REG_WRITE(ah, AR_MCAST_FIL0, filter0);
2787 REG_WRITE(ah, AR_MCAST_FIL1, filter1);
2789 EXPORT_SYMBOL(ath9k_hw_setmcastfilter);
2791 void ath9k_hw_write_associd(struct ath_hw *ah)
2793 struct ath_common *common = ath9k_hw_common(ah);
2795 REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid));
2796 REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) |
2797 ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S));
2799 EXPORT_SYMBOL(ath9k_hw_write_associd);
2801 #define ATH9K_MAX_TSF_READ 10
2803 u64 ath9k_hw_gettsf64(struct ath_hw *ah)
2805 u32 tsf_lower, tsf_upper1, tsf_upper2;
2808 tsf_upper1 = REG_READ(ah, AR_TSF_U32);
2809 for (i = 0; i < ATH9K_MAX_TSF_READ; i++) {
2810 tsf_lower = REG_READ(ah, AR_TSF_L32);
2811 tsf_upper2 = REG_READ(ah, AR_TSF_U32);
2812 if (tsf_upper2 == tsf_upper1)
2814 tsf_upper1 = tsf_upper2;
2817 WARN_ON( i == ATH9K_MAX_TSF_READ );
2819 return (((u64)tsf_upper1 << 32) | tsf_lower);
2821 EXPORT_SYMBOL(ath9k_hw_gettsf64);
2823 void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64)
2825 REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff);
2826 REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff);
2828 EXPORT_SYMBOL(ath9k_hw_settsf64);
2830 void ath9k_hw_reset_tsf(struct ath_hw *ah)
2832 if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0,
2833 AH_TSF_WRITE_TIMEOUT))
2834 ath_dbg(ath9k_hw_common(ah), RESET,
2835 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2837 REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
2839 EXPORT_SYMBOL(ath9k_hw_reset_tsf);
2841 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, bool set)
2844 ah->misc_mode |= AR_PCU_TX_ADD_TSF;
2846 ah->misc_mode &= ~AR_PCU_TX_ADD_TSF;
2848 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
2850 void ath9k_hw_set11nmac2040(struct ath_hw *ah, struct ath9k_channel *chan)
2854 if (IS_CHAN_HT40(chan) && !ah->config.cwm_ignore_extcca)
2855 macmode = AR_2040_JOINED_RX_CLEAR;
2859 REG_WRITE(ah, AR_2040_MODE, macmode);
2862 /* HW Generic timers configuration */
2864 static const struct ath_gen_timer_configuration gen_tmr_configuration[] =
2866 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2867 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2868 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2869 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2870 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2871 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2872 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2873 {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080},
2874 {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001},
2875 {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4,
2876 AR_NDP2_TIMER_MODE, 0x0002},
2877 {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4,
2878 AR_NDP2_TIMER_MODE, 0x0004},
2879 {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4,
2880 AR_NDP2_TIMER_MODE, 0x0008},
2881 {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4,
2882 AR_NDP2_TIMER_MODE, 0x0010},
2883 {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4,
2884 AR_NDP2_TIMER_MODE, 0x0020},
2885 {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4,
2886 AR_NDP2_TIMER_MODE, 0x0040},
2887 {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4,
2888 AR_NDP2_TIMER_MODE, 0x0080}
2891 /* HW generic timer primitives */
2893 u32 ath9k_hw_gettsf32(struct ath_hw *ah)
2895 return REG_READ(ah, AR_TSF_L32);
2897 EXPORT_SYMBOL(ath9k_hw_gettsf32);
2899 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
2900 void (*trigger)(void *),
2901 void (*overflow)(void *),
2905 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2906 struct ath_gen_timer *timer;
2908 if ((timer_index < AR_FIRST_NDP_TIMER) ||
2909 (timer_index >= ATH_MAX_GEN_TIMER))
2912 timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL);
2916 /* allocate a hardware generic timer slot */
2917 timer_table->timers[timer_index] = timer;
2918 timer->index = timer_index;
2919 timer->trigger = trigger;
2920 timer->overflow = overflow;
2925 EXPORT_SYMBOL(ath_gen_timer_alloc);
2927 void ath9k_hw_gen_timer_start(struct ath_hw *ah,
2928 struct ath_gen_timer *timer,
2932 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2935 timer_table->timer_mask |= BIT(timer->index);
2938 * Program generic timer registers
2940 REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr,
2942 REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr,
2944 REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2945 gen_tmr_configuration[timer->index].mode_mask);
2947 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
2949 * Starting from AR9462, each generic timer can select which tsf
2950 * to use. But we still follow the old rule, 0 - 7 use tsf and
2953 if ((timer->index < AR_GEN_TIMER_BANK_1_LEN))
2954 REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
2955 (1 << timer->index));
2957 REG_SET_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL,
2958 (1 << timer->index));
2962 mask |= SM(AR_GENTMR_BIT(timer->index),
2963 AR_IMR_S5_GENTIMER_TRIG);
2964 if (timer->overflow)
2965 mask |= SM(AR_GENTMR_BIT(timer->index),
2966 AR_IMR_S5_GENTIMER_THRESH);
2968 REG_SET_BIT(ah, AR_IMR_S5, mask);
2970 if ((ah->imask & ATH9K_INT_GENTIMER) == 0) {
2971 ah->imask |= ATH9K_INT_GENTIMER;
2972 ath9k_hw_set_interrupts(ah);
2975 EXPORT_SYMBOL(ath9k_hw_gen_timer_start);
2977 void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer)
2979 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
2981 /* Clear generic timer enable bits. */
2982 REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr,
2983 gen_tmr_configuration[timer->index].mode_mask);
2985 if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
2987 * Need to switch back to TSF if it was using TSF2.
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));
2995 /* Disable both trigger and thresh interrupt masks */
2996 REG_CLR_BIT(ah, AR_IMR_S5,
2997 (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) |
2998 SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG)));
3000 timer_table->timer_mask &= ~BIT(timer->index);
3002 if (timer_table->timer_mask == 0) {
3003 ah->imask &= ~ATH9K_INT_GENTIMER;
3004 ath9k_hw_set_interrupts(ah);
3007 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop);
3009 void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer)
3011 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3013 /* free the hardware generic timer slot */
3014 timer_table->timers[timer->index] = NULL;
3017 EXPORT_SYMBOL(ath_gen_timer_free);
3020 * Generic Timer Interrupts handling
3022 void ath_gen_timer_isr(struct ath_hw *ah)
3024 struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers;
3025 struct ath_gen_timer *timer;
3026 unsigned long trigger_mask, thresh_mask;
3029 /* get hardware generic timer interrupt status */
3030 trigger_mask = ah->intr_gen_timer_trigger;
3031 thresh_mask = ah->intr_gen_timer_thresh;
3032 trigger_mask &= timer_table->timer_mask;
3033 thresh_mask &= timer_table->timer_mask;
3035 for_each_set_bit(index, &thresh_mask, ARRAY_SIZE(timer_table->timers)) {
3036 timer = timer_table->timers[index];
3039 if (!timer->overflow)
3042 trigger_mask &= ~BIT(index);
3043 timer->overflow(timer->arg);
3046 for_each_set_bit(index, &trigger_mask, ARRAY_SIZE(timer_table->timers)) {
3047 timer = timer_table->timers[index];
3050 if (!timer->trigger)
3052 timer->trigger(timer->arg);
3055 EXPORT_SYMBOL(ath_gen_timer_isr);
3064 } ath_mac_bb_names[] = {
3065 /* Devices with external radios */
3066 { AR_SREV_VERSION_5416_PCI, "5416" },
3067 { AR_SREV_VERSION_5416_PCIE, "5418" },
3068 { AR_SREV_VERSION_9100, "9100" },
3069 { AR_SREV_VERSION_9160, "9160" },
3070 /* Single-chip solutions */
3071 { AR_SREV_VERSION_9280, "9280" },
3072 { AR_SREV_VERSION_9285, "9285" },
3073 { AR_SREV_VERSION_9287, "9287" },
3074 { AR_SREV_VERSION_9271, "9271" },
3075 { AR_SREV_VERSION_9300, "9300" },
3076 { AR_SREV_VERSION_9330, "9330" },
3077 { AR_SREV_VERSION_9340, "9340" },
3078 { AR_SREV_VERSION_9485, "9485" },
3079 { AR_SREV_VERSION_9462, "9462" },
3080 { AR_SREV_VERSION_9550, "9550" },
3081 { AR_SREV_VERSION_9565, "9565" },
3082 { AR_SREV_VERSION_9531, "9531" },
3085 /* For devices with external radios */
3089 } ath_rf_names[] = {
3091 { AR_RAD5133_SREV_MAJOR, "5133" },
3092 { AR_RAD5122_SREV_MAJOR, "5122" },
3093 { AR_RAD2133_SREV_MAJOR, "2133" },
3094 { AR_RAD2122_SREV_MAJOR, "2122" }
3098 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
3100 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version)
3104 for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) {
3105 if (ath_mac_bb_names[i].version == mac_bb_version) {
3106 return ath_mac_bb_names[i].name;
3114 * Return the RF name. "????" is returned if the RF is unknown.
3115 * Used for devices with external radios.
3117 static const char *ath9k_hw_rf_name(u16 rf_version)
3121 for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) {
3122 if (ath_rf_names[i].version == rf_version) {
3123 return ath_rf_names[i].name;
3130 void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
3134 /* chipsets >= AR9280 are single-chip */
3135 if (AR_SREV_9280_20_OR_LATER(ah)) {
3136 used = scnprintf(hw_name, len,
3137 "Atheros AR%s Rev:%x",
3138 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3139 ah->hw_version.macRev);
3142 used = scnprintf(hw_name, len,
3143 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
3144 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
3145 ah->hw_version.macRev,
3146 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev
3147 & AR_RADIO_SREV_MAJOR)),
3148 ah->hw_version.phyRev);
3151 hw_name[used] = '\0';
3153 EXPORT_SYMBOL(ath9k_hw_name);