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 <asm/unaligned.h>
25 #include "ar9003_mac.h"
27 static bool ath9k_hw_set_reset_reg(struct ath_hw
*ah
, u32 type
);
29 MODULE_AUTHOR("Atheros Communications");
30 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
31 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
32 MODULE_LICENSE("Dual BSD/GPL");
34 static int __init
ath9k_init(void)
38 module_init(ath9k_init
);
40 static void __exit
ath9k_exit(void)
44 module_exit(ath9k_exit
);
46 /* Private hardware callbacks */
48 static void ath9k_hw_init_cal_settings(struct ath_hw
*ah
)
50 ath9k_hw_private_ops(ah
)->init_cal_settings(ah
);
53 static void ath9k_hw_init_mode_regs(struct ath_hw
*ah
)
55 ath9k_hw_private_ops(ah
)->init_mode_regs(ah
);
58 static u32
ath9k_hw_compute_pll_control(struct ath_hw
*ah
,
59 struct ath9k_channel
*chan
)
61 return ath9k_hw_private_ops(ah
)->compute_pll_control(ah
, chan
);
64 static void ath9k_hw_init_mode_gain_regs(struct ath_hw
*ah
)
66 if (!ath9k_hw_private_ops(ah
)->init_mode_gain_regs
)
69 ath9k_hw_private_ops(ah
)->init_mode_gain_regs(ah
);
72 static void ath9k_hw_ani_cache_ini_regs(struct ath_hw
*ah
)
74 /* You will not have this callback if using the old ANI */
75 if (!ath9k_hw_private_ops(ah
)->ani_cache_ini_regs
)
78 ath9k_hw_private_ops(ah
)->ani_cache_ini_regs(ah
);
81 /********************/
82 /* Helper Functions */
83 /********************/
85 static void ath9k_hw_set_clockrate(struct ath_hw
*ah
)
87 struct ieee80211_conf
*conf
= &ath9k_hw_common(ah
)->hw
->conf
;
88 struct ath_common
*common
= ath9k_hw_common(ah
);
89 unsigned int clockrate
;
91 /* AR9287 v1.3+ uses async FIFO and runs the MAC at 117 MHz */
92 if (AR_SREV_9287(ah
) && AR_SREV_9287_13_OR_LATER(ah
))
94 else if (!ah
->curchan
) /* should really check for CCK instead */
95 clockrate
= ATH9K_CLOCK_RATE_CCK
;
96 else if (conf
->channel
->band
== IEEE80211_BAND_2GHZ
)
97 clockrate
= ATH9K_CLOCK_RATE_2GHZ_OFDM
;
98 else if (ah
->caps
.hw_caps
& ATH9K_HW_CAP_FASTCLOCK
)
99 clockrate
= ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM
;
101 clockrate
= ATH9K_CLOCK_RATE_5GHZ_OFDM
;
103 if (conf_is_ht40(conf
))
107 if (IS_CHAN_HALF_RATE(ah
->curchan
))
109 if (IS_CHAN_QUARTER_RATE(ah
->curchan
))
113 common
->clockrate
= clockrate
;
116 static u32
ath9k_hw_mac_to_clks(struct ath_hw
*ah
, u32 usecs
)
118 struct ath_common
*common
= ath9k_hw_common(ah
);
120 return usecs
* common
->clockrate
;
123 bool ath9k_hw_wait(struct ath_hw
*ah
, u32 reg
, u32 mask
, u32 val
, u32 timeout
)
127 BUG_ON(timeout
< AH_TIME_QUANTUM
);
129 for (i
= 0; i
< (timeout
/ AH_TIME_QUANTUM
); i
++) {
130 if ((REG_READ(ah
, reg
) & mask
) == val
)
133 udelay(AH_TIME_QUANTUM
);
136 ath_dbg(ath9k_hw_common(ah
), ATH_DBG_ANY
,
137 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
138 timeout
, reg
, REG_READ(ah
, reg
), mask
, val
);
142 EXPORT_SYMBOL(ath9k_hw_wait
);
144 void ath9k_hw_write_array(struct ath_hw
*ah
, struct ar5416IniArray
*array
,
145 int column
, unsigned int *writecnt
)
149 ENABLE_REGWRITE_BUFFER(ah
);
150 for (r
= 0; r
< array
->ia_rows
; r
++) {
151 REG_WRITE(ah
, INI_RA(array
, r
, 0),
152 INI_RA(array
, r
, column
));
155 REGWRITE_BUFFER_FLUSH(ah
);
158 u32
ath9k_hw_reverse_bits(u32 val
, u32 n
)
163 for (i
= 0, retval
= 0; i
< n
; i
++) {
164 retval
= (retval
<< 1) | (val
& 1);
170 u16
ath9k_hw_computetxtime(struct ath_hw
*ah
,
172 u32 frameLen
, u16 rateix
,
175 u32 bitsPerSymbol
, numBits
, numSymbols
, phyTime
, txTime
;
181 case WLAN_RC_PHY_CCK
:
182 phyTime
= CCK_PREAMBLE_BITS
+ CCK_PLCP_BITS
;
185 numBits
= frameLen
<< 3;
186 txTime
= CCK_SIFS_TIME
+ phyTime
+ ((numBits
* 1000) / kbps
);
188 case WLAN_RC_PHY_OFDM
:
189 if (ah
->curchan
&& IS_CHAN_QUARTER_RATE(ah
->curchan
)) {
190 bitsPerSymbol
= (kbps
* OFDM_SYMBOL_TIME_QUARTER
) / 1000;
191 numBits
= OFDM_PLCP_BITS
+ (frameLen
<< 3);
192 numSymbols
= DIV_ROUND_UP(numBits
, bitsPerSymbol
);
193 txTime
= OFDM_SIFS_TIME_QUARTER
194 + OFDM_PREAMBLE_TIME_QUARTER
195 + (numSymbols
* OFDM_SYMBOL_TIME_QUARTER
);
196 } else if (ah
->curchan
&&
197 IS_CHAN_HALF_RATE(ah
->curchan
)) {
198 bitsPerSymbol
= (kbps
* OFDM_SYMBOL_TIME_HALF
) / 1000;
199 numBits
= OFDM_PLCP_BITS
+ (frameLen
<< 3);
200 numSymbols
= DIV_ROUND_UP(numBits
, bitsPerSymbol
);
201 txTime
= OFDM_SIFS_TIME_HALF
+
202 OFDM_PREAMBLE_TIME_HALF
203 + (numSymbols
* OFDM_SYMBOL_TIME_HALF
);
205 bitsPerSymbol
= (kbps
* OFDM_SYMBOL_TIME
) / 1000;
206 numBits
= OFDM_PLCP_BITS
+ (frameLen
<< 3);
207 numSymbols
= DIV_ROUND_UP(numBits
, bitsPerSymbol
);
208 txTime
= OFDM_SIFS_TIME
+ OFDM_PREAMBLE_TIME
209 + (numSymbols
* OFDM_SYMBOL_TIME
);
213 ath_err(ath9k_hw_common(ah
),
214 "Unknown phy %u (rate ix %u)\n", phy
, rateix
);
221 EXPORT_SYMBOL(ath9k_hw_computetxtime
);
223 void ath9k_hw_get_channel_centers(struct ath_hw
*ah
,
224 struct ath9k_channel
*chan
,
225 struct chan_centers
*centers
)
229 if (!IS_CHAN_HT40(chan
)) {
230 centers
->ctl_center
= centers
->ext_center
=
231 centers
->synth_center
= chan
->channel
;
235 if ((chan
->chanmode
== CHANNEL_A_HT40PLUS
) ||
236 (chan
->chanmode
== CHANNEL_G_HT40PLUS
)) {
237 centers
->synth_center
=
238 chan
->channel
+ HT40_CHANNEL_CENTER_SHIFT
;
241 centers
->synth_center
=
242 chan
->channel
- HT40_CHANNEL_CENTER_SHIFT
;
246 centers
->ctl_center
=
247 centers
->synth_center
- (extoff
* HT40_CHANNEL_CENTER_SHIFT
);
248 /* 25 MHz spacing is supported by hw but not on upper layers */
249 centers
->ext_center
=
250 centers
->synth_center
+ (extoff
* HT40_CHANNEL_CENTER_SHIFT
);
257 static void ath9k_hw_read_revisions(struct ath_hw
*ah
)
261 switch (ah
->hw_version
.devid
) {
262 case AR5416_AR9100_DEVID
:
263 ah
->hw_version
.macVersion
= AR_SREV_VERSION_9100
;
265 case AR9300_DEVID_AR9330
:
266 ah
->hw_version
.macVersion
= AR_SREV_VERSION_9330
;
267 if (ah
->get_mac_revision
) {
268 ah
->hw_version
.macRev
= ah
->get_mac_revision();
270 val
= REG_READ(ah
, AR_SREV
);
271 ah
->hw_version
.macRev
= MS(val
, AR_SREV_REVISION2
);
274 case AR9300_DEVID_AR9340
:
275 ah
->hw_version
.macVersion
= AR_SREV_VERSION_9340
;
276 val
= REG_READ(ah
, AR_SREV
);
277 ah
->hw_version
.macRev
= MS(val
, AR_SREV_REVISION2
);
281 val
= REG_READ(ah
, AR_SREV
) & AR_SREV_ID
;
284 val
= REG_READ(ah
, AR_SREV
);
285 ah
->hw_version
.macVersion
=
286 (val
& AR_SREV_VERSION2
) >> AR_SREV_TYPE2_S
;
287 ah
->hw_version
.macRev
= MS(val
, AR_SREV_REVISION2
);
289 if (AR_SREV_9462(ah
))
290 ah
->is_pciexpress
= true;
292 ah
->is_pciexpress
= (val
&
293 AR_SREV_TYPE2_HOST_MODE
) ? 0 : 1;
295 if (!AR_SREV_9100(ah
))
296 ah
->hw_version
.macVersion
= MS(val
, AR_SREV_VERSION
);
298 ah
->hw_version
.macRev
= val
& AR_SREV_REVISION
;
300 if (ah
->hw_version
.macVersion
== AR_SREV_VERSION_5416_PCIE
)
301 ah
->is_pciexpress
= true;
305 /************************************/
306 /* HW Attach, Detach, Init Routines */
307 /************************************/
309 static void ath9k_hw_disablepcie(struct ath_hw
*ah
)
311 if (!AR_SREV_5416(ah
))
314 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x9248fc00);
315 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x24924924);
316 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x28000029);
317 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x57160824);
318 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x25980579);
319 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x00000000);
320 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x1aaabe40);
321 REG_WRITE(ah
, AR_PCIE_SERDES
, 0xbe105554);
322 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x000e1007);
324 REG_WRITE(ah
, AR_PCIE_SERDES2
, 0x00000000);
327 static void ath9k_hw_aspm_init(struct ath_hw
*ah
)
329 struct ath_common
*common
= ath9k_hw_common(ah
);
331 if (common
->bus_ops
->aspm_init
)
332 common
->bus_ops
->aspm_init(common
);
335 /* This should work for all families including legacy */
336 static bool ath9k_hw_chip_test(struct ath_hw
*ah
)
338 struct ath_common
*common
= ath9k_hw_common(ah
);
339 u32 regAddr
[2] = { AR_STA_ID0
};
341 static const u32 patternData
[4] = {
342 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999
346 if (!AR_SREV_9300_20_OR_LATER(ah
)) {
348 regAddr
[1] = AR_PHY_BASE
+ (8 << 2);
352 for (i
= 0; i
< loop_max
; i
++) {
353 u32 addr
= regAddr
[i
];
356 regHold
[i
] = REG_READ(ah
, addr
);
357 for (j
= 0; j
< 0x100; j
++) {
358 wrData
= (j
<< 16) | j
;
359 REG_WRITE(ah
, addr
, wrData
);
360 rdData
= REG_READ(ah
, addr
);
361 if (rdData
!= wrData
) {
363 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
364 addr
, wrData
, rdData
);
368 for (j
= 0; j
< 4; j
++) {
369 wrData
= patternData
[j
];
370 REG_WRITE(ah
, addr
, wrData
);
371 rdData
= REG_READ(ah
, addr
);
372 if (wrData
!= rdData
) {
374 "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n",
375 addr
, wrData
, rdData
);
379 REG_WRITE(ah
, regAddr
[i
], regHold
[i
]);
386 static void ath9k_hw_init_config(struct ath_hw
*ah
)
390 ah
->config
.dma_beacon_response_time
= 2;
391 ah
->config
.sw_beacon_response_time
= 10;
392 ah
->config
.additional_swba_backoff
= 0;
393 ah
->config
.ack_6mb
= 0x0;
394 ah
->config
.cwm_ignore_extcca
= 0;
395 ah
->config
.pcie_clock_req
= 0;
396 ah
->config
.pcie_waen
= 0;
397 ah
->config
.analog_shiftreg
= 1;
398 ah
->config
.enable_ani
= true;
400 for (i
= 0; i
< AR_EEPROM_MODAL_SPURS
; i
++) {
401 ah
->config
.spurchans
[i
][0] = AR_NO_SPUR
;
402 ah
->config
.spurchans
[i
][1] = AR_NO_SPUR
;
405 /* PAPRD needs some more work to be enabled */
406 ah
->config
.paprd_disable
= 1;
408 ah
->config
.rx_intr_mitigation
= true;
409 ah
->config
.pcieSerDesWrite
= true;
412 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
413 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
414 * This means we use it for all AR5416 devices, and the few
415 * minor PCI AR9280 devices out there.
417 * Serialization is required because these devices do not handle
418 * well the case of two concurrent reads/writes due to the latency
419 * involved. During one read/write another read/write can be issued
420 * on another CPU while the previous read/write may still be working
421 * on our hardware, if we hit this case the hardware poops in a loop.
422 * We prevent this by serializing reads and writes.
424 * This issue is not present on PCI-Express devices or pre-AR5416
425 * devices (legacy, 802.11abg).
427 if (num_possible_cpus() > 1)
428 ah
->config
.serialize_regmode
= SER_REG_MODE_AUTO
;
431 static void ath9k_hw_init_defaults(struct ath_hw
*ah
)
433 struct ath_regulatory
*regulatory
= ath9k_hw_regulatory(ah
);
435 regulatory
->country_code
= CTRY_DEFAULT
;
436 regulatory
->power_limit
= MAX_RATE_POWER
;
438 ah
->hw_version
.magic
= AR5416_MAGIC
;
439 ah
->hw_version
.subvendorid
= 0;
442 ah
->sta_id1_defaults
=
443 AR_STA_ID1_CRPT_MIC_ENABLE
|
444 AR_STA_ID1_MCAST_KSRCH
;
445 if (AR_SREV_9100(ah
))
446 ah
->sta_id1_defaults
|= AR_STA_ID1_AR9100_BA_FIX
;
447 ah
->enable_32kHz_clock
= DONT_USE_32KHZ
;
448 ah
->slottime
= ATH9K_SLOT_TIME_9
;
449 ah
->globaltxtimeout
= (u32
) -1;
450 ah
->power_mode
= ATH9K_PM_UNDEFINED
;
453 static int ath9k_hw_init_macaddr(struct ath_hw
*ah
)
455 struct ath_common
*common
= ath9k_hw_common(ah
);
459 static const u32 EEP_MAC
[] = { EEP_MAC_LSW
, EEP_MAC_MID
, EEP_MAC_MSW
};
462 for (i
= 0; i
< 3; i
++) {
463 eeval
= ah
->eep_ops
->get_eeprom(ah
, EEP_MAC
[i
]);
465 common
->macaddr
[2 * i
] = eeval
>> 8;
466 common
->macaddr
[2 * i
+ 1] = eeval
& 0xff;
468 if (sum
== 0 || sum
== 0xffff * 3)
469 return -EADDRNOTAVAIL
;
474 static int ath9k_hw_post_init(struct ath_hw
*ah
)
476 struct ath_common
*common
= ath9k_hw_common(ah
);
479 if (common
->bus_ops
->ath_bus_type
!= ATH_USB
) {
480 if (!ath9k_hw_chip_test(ah
))
484 if (!AR_SREV_9300_20_OR_LATER(ah
)) {
485 ecode
= ar9002_hw_rf_claim(ah
);
490 ecode
= ath9k_hw_eeprom_init(ah
);
494 ath_dbg(ath9k_hw_common(ah
), ATH_DBG_CONFIG
,
495 "Eeprom VER: %d, REV: %d\n",
496 ah
->eep_ops
->get_eeprom_ver(ah
),
497 ah
->eep_ops
->get_eeprom_rev(ah
));
499 ecode
= ath9k_hw_rf_alloc_ext_banks(ah
);
501 ath_err(ath9k_hw_common(ah
),
502 "Failed allocating banks for external radio\n");
503 ath9k_hw_rf_free_ext_banks(ah
);
507 if (!AR_SREV_9100(ah
) && !AR_SREV_9340(ah
)) {
508 ath9k_hw_ani_setup(ah
);
509 ath9k_hw_ani_init(ah
);
515 static void ath9k_hw_attach_ops(struct ath_hw
*ah
)
517 if (AR_SREV_9300_20_OR_LATER(ah
))
518 ar9003_hw_attach_ops(ah
);
520 ar9002_hw_attach_ops(ah
);
523 /* Called for all hardware families */
524 static int __ath9k_hw_init(struct ath_hw
*ah
)
526 struct ath_common
*common
= ath9k_hw_common(ah
);
529 ath9k_hw_read_revisions(ah
);
532 * Read back AR_WA into a permanent copy and set bits 14 and 17.
533 * We need to do this to avoid RMW of this register. We cannot
534 * read the reg when chip is asleep.
536 ah
->WARegVal
= REG_READ(ah
, AR_WA
);
537 ah
->WARegVal
|= (AR_WA_D3_L1_DISABLE
|
538 AR_WA_ASPM_TIMER_BASED_DISABLE
);
540 if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_POWER_ON
)) {
541 ath_err(common
, "Couldn't reset chip\n");
545 if (AR_SREV_9462(ah
))
546 ah
->WARegVal
&= ~AR_WA_D3_L1_DISABLE
;
548 ath9k_hw_init_defaults(ah
);
549 ath9k_hw_init_config(ah
);
551 ath9k_hw_attach_ops(ah
);
553 if (!ath9k_hw_setpower(ah
, ATH9K_PM_AWAKE
)) {
554 ath_err(common
, "Couldn't wakeup chip\n");
558 if (ah
->config
.serialize_regmode
== SER_REG_MODE_AUTO
) {
559 if (ah
->hw_version
.macVersion
== AR_SREV_VERSION_5416_PCI
||
560 ((AR_SREV_9160(ah
) || AR_SREV_9280(ah
)) &&
561 !ah
->is_pciexpress
)) {
562 ah
->config
.serialize_regmode
=
565 ah
->config
.serialize_regmode
=
570 ath_dbg(common
, ATH_DBG_RESET
, "serialize_regmode is %d\n",
571 ah
->config
.serialize_regmode
);
573 if (AR_SREV_9285(ah
) || AR_SREV_9271(ah
))
574 ah
->config
.max_txtrig_level
= MAX_TX_FIFO_THRESHOLD
>> 1;
576 ah
->config
.max_txtrig_level
= MAX_TX_FIFO_THRESHOLD
;
578 switch (ah
->hw_version
.macVersion
) {
579 case AR_SREV_VERSION_5416_PCI
:
580 case AR_SREV_VERSION_5416_PCIE
:
581 case AR_SREV_VERSION_9160
:
582 case AR_SREV_VERSION_9100
:
583 case AR_SREV_VERSION_9280
:
584 case AR_SREV_VERSION_9285
:
585 case AR_SREV_VERSION_9287
:
586 case AR_SREV_VERSION_9271
:
587 case AR_SREV_VERSION_9300
:
588 case AR_SREV_VERSION_9330
:
589 case AR_SREV_VERSION_9485
:
590 case AR_SREV_VERSION_9340
:
591 case AR_SREV_VERSION_9462
:
595 "Mac Chip Rev 0x%02x.%x is not supported by this driver\n",
596 ah
->hw_version
.macVersion
, ah
->hw_version
.macRev
);
600 if (AR_SREV_9271(ah
) || AR_SREV_9100(ah
) || AR_SREV_9340(ah
) ||
602 ah
->is_pciexpress
= false;
604 ah
->hw_version
.phyRev
= REG_READ(ah
, AR_PHY_CHIP_ID
);
605 ath9k_hw_init_cal_settings(ah
);
607 ah
->ani_function
= ATH9K_ANI_ALL
;
608 if (AR_SREV_9280_20_OR_LATER(ah
) && !AR_SREV_9300_20_OR_LATER(ah
))
609 ah
->ani_function
&= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL
;
610 if (!AR_SREV_9300_20_OR_LATER(ah
))
611 ah
->ani_function
&= ~ATH9K_ANI_MRC_CCK
;
613 ath9k_hw_init_mode_regs(ah
);
615 if (!ah
->is_pciexpress
)
616 ath9k_hw_disablepcie(ah
);
618 if (!AR_SREV_9300_20_OR_LATER(ah
))
619 ar9002_hw_cck_chan14_spread(ah
);
621 r
= ath9k_hw_post_init(ah
);
625 ath9k_hw_init_mode_gain_regs(ah
);
626 r
= ath9k_hw_fill_cap_info(ah
);
630 if (ah
->is_pciexpress
)
631 ath9k_hw_aspm_init(ah
);
633 r
= ath9k_hw_init_macaddr(ah
);
635 ath_err(common
, "Failed to initialize MAC address\n");
639 if (AR_SREV_9285(ah
) || AR_SREV_9271(ah
))
640 ah
->tx_trig_level
= (AR_FTRIG_256B
>> AR_FTRIG_S
);
642 ah
->tx_trig_level
= (AR_FTRIG_512B
>> AR_FTRIG_S
);
644 if (AR_SREV_9330(ah
))
645 ah
->bb_watchdog_timeout_ms
= 85;
647 ah
->bb_watchdog_timeout_ms
= 25;
649 common
->state
= ATH_HW_INITIALIZED
;
654 int ath9k_hw_init(struct ath_hw
*ah
)
657 struct ath_common
*common
= ath9k_hw_common(ah
);
659 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
660 switch (ah
->hw_version
.devid
) {
661 case AR5416_DEVID_PCI
:
662 case AR5416_DEVID_PCIE
:
663 case AR5416_AR9100_DEVID
:
664 case AR9160_DEVID_PCI
:
665 case AR9280_DEVID_PCI
:
666 case AR9280_DEVID_PCIE
:
667 case AR9285_DEVID_PCIE
:
668 case AR9287_DEVID_PCI
:
669 case AR9287_DEVID_PCIE
:
670 case AR2427_DEVID_PCIE
:
671 case AR9300_DEVID_PCIE
:
672 case AR9300_DEVID_AR9485_PCIE
:
673 case AR9300_DEVID_AR9330
:
674 case AR9300_DEVID_AR9340
:
675 case AR9300_DEVID_AR9580
:
676 case AR9300_DEVID_AR9462
:
679 if (common
->bus_ops
->ath_bus_type
== ATH_USB
)
681 ath_err(common
, "Hardware device ID 0x%04x not supported\n",
682 ah
->hw_version
.devid
);
686 ret
= __ath9k_hw_init(ah
);
689 "Unable to initialize hardware; initialization status: %d\n",
696 EXPORT_SYMBOL(ath9k_hw_init
);
698 static void ath9k_hw_init_qos(struct ath_hw
*ah
)
700 ENABLE_REGWRITE_BUFFER(ah
);
702 REG_WRITE(ah
, AR_MIC_QOS_CONTROL
, 0x100aa);
703 REG_WRITE(ah
, AR_MIC_QOS_SELECT
, 0x3210);
705 REG_WRITE(ah
, AR_QOS_NO_ACK
,
706 SM(2, AR_QOS_NO_ACK_TWO_BIT
) |
707 SM(5, AR_QOS_NO_ACK_BIT_OFF
) |
708 SM(0, AR_QOS_NO_ACK_BYTE_OFF
));
710 REG_WRITE(ah
, AR_TXOP_X
, AR_TXOP_X_VAL
);
711 REG_WRITE(ah
, AR_TXOP_0_3
, 0xFFFFFFFF);
712 REG_WRITE(ah
, AR_TXOP_4_7
, 0xFFFFFFFF);
713 REG_WRITE(ah
, AR_TXOP_8_11
, 0xFFFFFFFF);
714 REG_WRITE(ah
, AR_TXOP_12_15
, 0xFFFFFFFF);
716 REGWRITE_BUFFER_FLUSH(ah
);
719 u32
ar9003_get_pll_sqsum_dvc(struct ath_hw
*ah
)
721 REG_CLR_BIT(ah
, PLL3
, PLL3_DO_MEAS_MASK
);
723 REG_SET_BIT(ah
, PLL3
, PLL3_DO_MEAS_MASK
);
725 while ((REG_READ(ah
, PLL4
) & PLL4_MEAS_DONE
) == 0)
728 return (REG_READ(ah
, PLL3
) & SQSUM_DVC_MASK
) >> 3;
730 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc
);
732 static void ath9k_hw_init_pll(struct ath_hw
*ah
,
733 struct ath9k_channel
*chan
)
737 if (AR_SREV_9485(ah
)) {
739 /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */
740 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL2
,
741 AR_CH0_BB_DPLL2_PLL_PWD
, 0x1);
742 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL2
,
743 AR_CH0_DPLL2_KD
, 0x40);
744 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL2
,
745 AR_CH0_DPLL2_KI
, 0x4);
747 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL1
,
748 AR_CH0_BB_DPLL1_REFDIV
, 0x5);
749 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL1
,
750 AR_CH0_BB_DPLL1_NINI
, 0x58);
751 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL1
,
752 AR_CH0_BB_DPLL1_NFRAC
, 0x0);
754 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL2
,
755 AR_CH0_BB_DPLL2_OUTDIV
, 0x1);
756 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL2
,
757 AR_CH0_BB_DPLL2_LOCAL_PLL
, 0x1);
758 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL2
,
759 AR_CH0_BB_DPLL2_EN_NEGTRIG
, 0x1);
761 /* program BB PLL phase_shift to 0x6 */
762 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL3
,
763 AR_CH0_BB_DPLL3_PHASE_SHIFT
, 0x6);
765 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL2
,
766 AR_CH0_BB_DPLL2_PLL_PWD
, 0x0);
768 } else if (AR_SREV_9330(ah
)) {
769 u32 ddr_dpll2
, pll_control2
, kd
;
771 if (ah
->is_clk_25mhz
) {
772 ddr_dpll2
= 0x18e82f01;
773 pll_control2
= 0xe04a3d;
776 ddr_dpll2
= 0x19e82f01;
777 pll_control2
= 0x886666;
781 /* program DDR PLL ki and kd value */
782 REG_WRITE(ah
, AR_CH0_DDR_DPLL2
, ddr_dpll2
);
784 /* program DDR PLL phase_shift */
785 REG_RMW_FIELD(ah
, AR_CH0_DDR_DPLL3
,
786 AR_CH0_DPLL3_PHASE_SHIFT
, 0x1);
788 REG_WRITE(ah
, AR_RTC_PLL_CONTROL
, 0x1142c);
791 /* program refdiv, nint, frac to RTC register */
792 REG_WRITE(ah
, AR_RTC_PLL_CONTROL2
, pll_control2
);
794 /* program BB PLL kd and ki value */
795 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL2
, AR_CH0_DPLL2_KD
, kd
);
796 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL2
, AR_CH0_DPLL2_KI
, 0x06);
798 /* program BB PLL phase_shift */
799 REG_RMW_FIELD(ah
, AR_CH0_BB_DPLL3
,
800 AR_CH0_BB_DPLL3_PHASE_SHIFT
, 0x1);
801 } else if (AR_SREV_9340(ah
)) {
802 u32 regval
, pll2_divint
, pll2_divfrac
, refdiv
;
804 REG_WRITE(ah
, AR_RTC_PLL_CONTROL
, 0x1142c);
807 REG_SET_BIT(ah
, AR_PHY_PLL_MODE
, 0x1 << 16);
810 if (ah
->is_clk_25mhz
) {
812 pll2_divfrac
= 0x1eb85;
820 regval
= REG_READ(ah
, AR_PHY_PLL_MODE
);
821 regval
|= (0x1 << 16);
822 REG_WRITE(ah
, AR_PHY_PLL_MODE
, regval
);
825 REG_WRITE(ah
, AR_PHY_PLL_CONTROL
, (refdiv
<< 27) |
826 (pll2_divint
<< 18) | pll2_divfrac
);
829 regval
= REG_READ(ah
, AR_PHY_PLL_MODE
);
830 regval
= (regval
& 0x80071fff) | (0x1 << 30) | (0x1 << 13) |
831 (0x4 << 26) | (0x18 << 19);
832 REG_WRITE(ah
, AR_PHY_PLL_MODE
, regval
);
833 REG_WRITE(ah
, AR_PHY_PLL_MODE
,
834 REG_READ(ah
, AR_PHY_PLL_MODE
) & 0xfffeffff);
838 pll
= ath9k_hw_compute_pll_control(ah
, chan
);
840 REG_WRITE(ah
, AR_RTC_PLL_CONTROL
, pll
);
842 if (AR_SREV_9485(ah
) || AR_SREV_9340(ah
) || AR_SREV_9330(ah
))
845 /* Switch the core clock for ar9271 to 117Mhz */
846 if (AR_SREV_9271(ah
)) {
848 REG_WRITE(ah
, 0x50040, 0x304);
851 udelay(RTC_PLL_SETTLE_DELAY
);
853 REG_WRITE(ah
, AR_RTC_SLEEP_CLK
, AR_RTC_FORCE_DERIVED_CLK
);
855 if (AR_SREV_9340(ah
)) {
856 if (ah
->is_clk_25mhz
) {
857 REG_WRITE(ah
, AR_RTC_DERIVED_CLK
, 0x17c << 1);
858 REG_WRITE(ah
, AR_SLP32_MODE
, 0x0010f3d7);
859 REG_WRITE(ah
, AR_SLP32_INC
, 0x0001e7ae);
861 REG_WRITE(ah
, AR_RTC_DERIVED_CLK
, 0x261 << 1);
862 REG_WRITE(ah
, AR_SLP32_MODE
, 0x0010f400);
863 REG_WRITE(ah
, AR_SLP32_INC
, 0x0001e800);
869 static void ath9k_hw_init_interrupt_masks(struct ath_hw
*ah
,
870 enum nl80211_iftype opmode
)
872 u32 sync_default
= AR_INTR_SYNC_DEFAULT
;
873 u32 imr_reg
= AR_IMR_TXERR
|
879 if (AR_SREV_9340(ah
))
880 sync_default
&= ~AR_INTR_SYNC_HOST1_FATAL
;
882 if (AR_SREV_9300_20_OR_LATER(ah
)) {
883 imr_reg
|= AR_IMR_RXOK_HP
;
884 if (ah
->config
.rx_intr_mitigation
)
885 imr_reg
|= AR_IMR_RXINTM
| AR_IMR_RXMINTR
;
887 imr_reg
|= AR_IMR_RXOK_LP
;
890 if (ah
->config
.rx_intr_mitigation
)
891 imr_reg
|= AR_IMR_RXINTM
| AR_IMR_RXMINTR
;
893 imr_reg
|= AR_IMR_RXOK
;
896 if (ah
->config
.tx_intr_mitigation
)
897 imr_reg
|= AR_IMR_TXINTM
| AR_IMR_TXMINTR
;
899 imr_reg
|= AR_IMR_TXOK
;
901 if (opmode
== NL80211_IFTYPE_AP
)
902 imr_reg
|= AR_IMR_MIB
;
904 ENABLE_REGWRITE_BUFFER(ah
);
906 REG_WRITE(ah
, AR_IMR
, imr_reg
);
907 ah
->imrs2_reg
|= AR_IMR_S2_GTT
;
908 REG_WRITE(ah
, AR_IMR_S2
, ah
->imrs2_reg
);
910 if (!AR_SREV_9100(ah
)) {
911 REG_WRITE(ah
, AR_INTR_SYNC_CAUSE
, 0xFFFFFFFF);
912 REG_WRITE(ah
, AR_INTR_SYNC_ENABLE
, sync_default
);
913 REG_WRITE(ah
, AR_INTR_SYNC_MASK
, 0);
916 REGWRITE_BUFFER_FLUSH(ah
);
918 if (AR_SREV_9300_20_OR_LATER(ah
)) {
919 REG_WRITE(ah
, AR_INTR_PRIO_ASYNC_ENABLE
, 0);
920 REG_WRITE(ah
, AR_INTR_PRIO_ASYNC_MASK
, 0);
921 REG_WRITE(ah
, AR_INTR_PRIO_SYNC_ENABLE
, 0);
922 REG_WRITE(ah
, AR_INTR_PRIO_SYNC_MASK
, 0);
926 static void ath9k_hw_set_sifs_time(struct ath_hw
*ah
, u32 us
)
928 u32 val
= ath9k_hw_mac_to_clks(ah
, us
- 2);
929 val
= min(val
, (u32
) 0xFFFF);
930 REG_WRITE(ah
, AR_D_GBL_IFS_SIFS
, val
);
933 static void ath9k_hw_setslottime(struct ath_hw
*ah
, u32 us
)
935 u32 val
= ath9k_hw_mac_to_clks(ah
, us
);
936 val
= min(val
, (u32
) 0xFFFF);
937 REG_WRITE(ah
, AR_D_GBL_IFS_SLOT
, val
);
940 static void ath9k_hw_set_ack_timeout(struct ath_hw
*ah
, u32 us
)
942 u32 val
= ath9k_hw_mac_to_clks(ah
, us
);
943 val
= min(val
, (u32
) MS(0xFFFFFFFF, AR_TIME_OUT_ACK
));
944 REG_RMW_FIELD(ah
, AR_TIME_OUT
, AR_TIME_OUT_ACK
, val
);
947 static void ath9k_hw_set_cts_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_CTS
));
951 REG_RMW_FIELD(ah
, AR_TIME_OUT
, AR_TIME_OUT_CTS
, val
);
954 static bool ath9k_hw_set_global_txtimeout(struct ath_hw
*ah
, u32 tu
)
957 ath_dbg(ath9k_hw_common(ah
), ATH_DBG_XMIT
,
958 "bad global tx timeout %u\n", tu
);
959 ah
->globaltxtimeout
= (u32
) -1;
962 REG_RMW_FIELD(ah
, AR_GTXTO
, AR_GTXTO_TIMEOUT_LIMIT
, tu
);
963 ah
->globaltxtimeout
= tu
;
968 void ath9k_hw_init_global_settings(struct ath_hw
*ah
)
970 struct ath_common
*common
= ath9k_hw_common(ah
);
971 struct ieee80211_conf
*conf
= &common
->hw
->conf
;
972 const struct ath9k_channel
*chan
= ah
->curchan
;
973 int acktimeout
, ctstimeout
;
976 int rx_lat
= 0, tx_lat
= 0, eifs
= 0;
979 ath_dbg(ath9k_hw_common(ah
), ATH_DBG_RESET
, "ah->misc_mode 0x%x\n",
985 if (ah
->misc_mode
!= 0)
986 REG_SET_BIT(ah
, AR_PCU_MISC
, ah
->misc_mode
);
988 if (IS_CHAN_A_FAST_CLOCK(ah
, chan
))
994 if (IS_CHAN_HALF_RATE(chan
)) {
998 if (IS_CHAN_A_FAST_CLOCK(ah
, chan
))
1003 } else if (IS_CHAN_QUARTER_RATE(chan
)) {
1005 rx_lat
= (rx_lat
* 4) - 1;
1007 if (IS_CHAN_A_FAST_CLOCK(ah
, chan
))
1013 if (AR_SREV_9287(ah
) && AR_SREV_9287_13_OR_LATER(ah
)) {
1014 eifs
= AR_D_GBL_IFS_EIFS_ASYNC_FIFO
;
1015 reg
= AR_USEC_ASYNC_FIFO
;
1017 eifs
= REG_READ(ah
, AR_D_GBL_IFS_EIFS
)/
1019 reg
= REG_READ(ah
, AR_USEC
);
1021 rx_lat
= MS(reg
, AR_USEC_RX_LAT
);
1022 tx_lat
= MS(reg
, AR_USEC_TX_LAT
);
1024 slottime
= ah
->slottime
;
1025 if (IS_CHAN_5GHZ(chan
))
1031 /* As defined by IEEE 802.11-2007 17.3.8.6 */
1032 acktimeout
= slottime
+ sifstime
+ 3 * ah
->coverage_class
;
1033 ctstimeout
= acktimeout
;
1036 * Workaround for early ACK timeouts, add an offset to match the
1037 * initval's 64us ack timeout value.
1038 * This was initially only meant to work around an issue with delayed
1039 * BA frames in some implementations, but it has been found to fix ACK
1040 * timeout issues in other cases as well.
1042 if (conf
->channel
&& conf
->channel
->band
== IEEE80211_BAND_2GHZ
)
1043 acktimeout
+= 64 - sifstime
- ah
->slottime
;
1045 ath9k_hw_set_sifs_time(ah
, sifstime
);
1046 ath9k_hw_setslottime(ah
, slottime
);
1047 ath9k_hw_set_ack_timeout(ah
, acktimeout
);
1048 ath9k_hw_set_cts_timeout(ah
, ctstimeout
);
1049 if (ah
->globaltxtimeout
!= (u32
) -1)
1050 ath9k_hw_set_global_txtimeout(ah
, ah
->globaltxtimeout
);
1052 REG_WRITE(ah
, AR_D_GBL_IFS_EIFS
, ath9k_hw_mac_to_clks(ah
, eifs
));
1053 REG_RMW(ah
, AR_USEC
,
1054 (common
->clockrate
- 1) |
1055 SM(rx_lat
, AR_USEC_RX_LAT
) |
1056 SM(tx_lat
, AR_USEC_TX_LAT
),
1057 AR_USEC_TX_LAT
| AR_USEC_RX_LAT
| AR_USEC_USEC
);
1060 EXPORT_SYMBOL(ath9k_hw_init_global_settings
);
1062 void ath9k_hw_deinit(struct ath_hw
*ah
)
1064 struct ath_common
*common
= ath9k_hw_common(ah
);
1066 if (common
->state
< ATH_HW_INITIALIZED
)
1069 ath9k_hw_setpower(ah
, ATH9K_PM_FULL_SLEEP
);
1072 ath9k_hw_rf_free_ext_banks(ah
);
1074 EXPORT_SYMBOL(ath9k_hw_deinit
);
1080 u32
ath9k_regd_get_ctl(struct ath_regulatory
*reg
, struct ath9k_channel
*chan
)
1082 u32 ctl
= ath_regd_get_band_ctl(reg
, chan
->chan
->band
);
1084 if (IS_CHAN_B(chan
))
1086 else if (IS_CHAN_G(chan
))
1094 /****************************************/
1095 /* Reset and Channel Switching Routines */
1096 /****************************************/
1098 static inline void ath9k_hw_set_dma(struct ath_hw
*ah
)
1100 struct ath_common
*common
= ath9k_hw_common(ah
);
1102 ENABLE_REGWRITE_BUFFER(ah
);
1105 * set AHB_MODE not to do cacheline prefetches
1107 if (!AR_SREV_9300_20_OR_LATER(ah
))
1108 REG_SET_BIT(ah
, AR_AHB_MODE
, AR_AHB_PREFETCH_RD_EN
);
1111 * let mac dma reads be in 128 byte chunks
1113 REG_RMW(ah
, AR_TXCFG
, AR_TXCFG_DMASZ_128B
, AR_TXCFG_DMASZ_MASK
);
1115 REGWRITE_BUFFER_FLUSH(ah
);
1118 * Restore TX Trigger Level to its pre-reset value.
1119 * The initial value depends on whether aggregation is enabled, and is
1120 * adjusted whenever underruns are detected.
1122 if (!AR_SREV_9300_20_OR_LATER(ah
))
1123 REG_RMW_FIELD(ah
, AR_TXCFG
, AR_FTRIG
, ah
->tx_trig_level
);
1125 ENABLE_REGWRITE_BUFFER(ah
);
1128 * let mac dma writes be in 128 byte chunks
1130 REG_RMW(ah
, AR_RXCFG
, AR_RXCFG_DMASZ_128B
, AR_RXCFG_DMASZ_MASK
);
1133 * Setup receive FIFO threshold to hold off TX activities
1135 REG_WRITE(ah
, AR_RXFIFO_CFG
, 0x200);
1137 if (AR_SREV_9300_20_OR_LATER(ah
)) {
1138 REG_RMW_FIELD(ah
, AR_RXBP_THRESH
, AR_RXBP_THRESH_HP
, 0x1);
1139 REG_RMW_FIELD(ah
, AR_RXBP_THRESH
, AR_RXBP_THRESH_LP
, 0x1);
1141 ath9k_hw_set_rx_bufsize(ah
, common
->rx_bufsize
-
1142 ah
->caps
.rx_status_len
);
1146 * reduce the number of usable entries in PCU TXBUF to avoid
1147 * wrap around issues.
1149 if (AR_SREV_9285(ah
)) {
1150 /* For AR9285 the number of Fifos are reduced to half.
1151 * So set the usable tx buf size also to half to
1152 * avoid data/delimiter underruns
1154 REG_WRITE(ah
, AR_PCU_TXBUF_CTRL
,
1155 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE
);
1156 } else if (!AR_SREV_9271(ah
)) {
1157 REG_WRITE(ah
, AR_PCU_TXBUF_CTRL
,
1158 AR_PCU_TXBUF_CTRL_USABLE_SIZE
);
1161 REGWRITE_BUFFER_FLUSH(ah
);
1163 if (AR_SREV_9300_20_OR_LATER(ah
))
1164 ath9k_hw_reset_txstatus_ring(ah
);
1167 static void ath9k_hw_set_operating_mode(struct ath_hw
*ah
, int opmode
)
1169 u32 mask
= AR_STA_ID1_STA_AP
| AR_STA_ID1_ADHOC
;
1170 u32 set
= AR_STA_ID1_KSRCH_MODE
;
1173 case NL80211_IFTYPE_ADHOC
:
1174 case NL80211_IFTYPE_MESH_POINT
:
1175 set
|= AR_STA_ID1_ADHOC
;
1176 REG_SET_BIT(ah
, AR_CFG
, AR_CFG_AP_ADHOC_INDICATION
);
1178 case NL80211_IFTYPE_AP
:
1179 set
|= AR_STA_ID1_STA_AP
;
1181 case NL80211_IFTYPE_STATION
:
1182 REG_CLR_BIT(ah
, AR_CFG
, AR_CFG_AP_ADHOC_INDICATION
);
1185 if (!ah
->is_monitoring
)
1189 REG_RMW(ah
, AR_STA_ID1
, set
, mask
);
1192 void ath9k_hw_get_delta_slope_vals(struct ath_hw
*ah
, u32 coef_scaled
,
1193 u32
*coef_mantissa
, u32
*coef_exponent
)
1195 u32 coef_exp
, coef_man
;
1197 for (coef_exp
= 31; coef_exp
> 0; coef_exp
--)
1198 if ((coef_scaled
>> coef_exp
) & 0x1)
1201 coef_exp
= 14 - (coef_exp
- COEF_SCALE_S
);
1203 coef_man
= coef_scaled
+ (1 << (COEF_SCALE_S
- coef_exp
- 1));
1205 *coef_mantissa
= coef_man
>> (COEF_SCALE_S
- coef_exp
);
1206 *coef_exponent
= coef_exp
- 16;
1209 static bool ath9k_hw_set_reset(struct ath_hw
*ah
, int type
)
1214 if (AR_SREV_9100(ah
)) {
1215 REG_RMW_FIELD(ah
, AR_RTC_DERIVED_CLK
,
1216 AR_RTC_DERIVED_CLK_PERIOD
, 1);
1217 (void)REG_READ(ah
, AR_RTC_DERIVED_CLK
);
1220 ENABLE_REGWRITE_BUFFER(ah
);
1222 if (AR_SREV_9300_20_OR_LATER(ah
)) {
1223 REG_WRITE(ah
, AR_WA
, ah
->WARegVal
);
1227 REG_WRITE(ah
, AR_RTC_FORCE_WAKE
, AR_RTC_FORCE_WAKE_EN
|
1228 AR_RTC_FORCE_WAKE_ON_INT
);
1230 if (AR_SREV_9100(ah
)) {
1231 rst_flags
= AR_RTC_RC_MAC_WARM
| AR_RTC_RC_MAC_COLD
|
1232 AR_RTC_RC_COLD_RESET
| AR_RTC_RC_WARM_RESET
;
1234 tmpReg
= REG_READ(ah
, AR_INTR_SYNC_CAUSE
);
1236 (AR_INTR_SYNC_LOCAL_TIMEOUT
|
1237 AR_INTR_SYNC_RADM_CPL_TIMEOUT
)) {
1239 REG_WRITE(ah
, AR_INTR_SYNC_ENABLE
, 0);
1242 if (!AR_SREV_9300_20_OR_LATER(ah
))
1244 REG_WRITE(ah
, AR_RC
, val
);
1246 } else if (!AR_SREV_9300_20_OR_LATER(ah
))
1247 REG_WRITE(ah
, AR_RC
, AR_RC_AHB
);
1249 rst_flags
= AR_RTC_RC_MAC_WARM
;
1250 if (type
== ATH9K_RESET_COLD
)
1251 rst_flags
|= AR_RTC_RC_MAC_COLD
;
1254 if (AR_SREV_9330(ah
)) {
1259 * call external reset function to reset WMAC if:
1260 * - doing a cold reset
1261 * - we have pending frames in the TX queues
1264 for (i
= 0; i
< AR_NUM_QCU
; i
++) {
1265 npend
= ath9k_hw_numtxpending(ah
, i
);
1270 if (ah
->external_reset
&&
1271 (npend
|| type
== ATH9K_RESET_COLD
)) {
1274 ath_dbg(ath9k_hw_common(ah
), ATH_DBG_RESET
,
1275 "reset MAC via external reset\n");
1277 reset_err
= ah
->external_reset();
1279 ath_err(ath9k_hw_common(ah
),
1280 "External reset failed, err=%d\n",
1285 REG_WRITE(ah
, AR_RTC_RESET
, 1);
1289 REG_WRITE(ah
, AR_RTC_RC
, rst_flags
);
1291 REGWRITE_BUFFER_FLUSH(ah
);
1295 REG_WRITE(ah
, AR_RTC_RC
, 0);
1296 if (!ath9k_hw_wait(ah
, AR_RTC_RC
, AR_RTC_RC_M
, 0, AH_WAIT_TIMEOUT
)) {
1297 ath_dbg(ath9k_hw_common(ah
), ATH_DBG_RESET
,
1298 "RTC stuck in MAC reset\n");
1302 if (!AR_SREV_9100(ah
))
1303 REG_WRITE(ah
, AR_RC
, 0);
1305 if (AR_SREV_9100(ah
))
1311 static bool ath9k_hw_set_reset_power_on(struct ath_hw
*ah
)
1313 ENABLE_REGWRITE_BUFFER(ah
);
1315 if (AR_SREV_9300_20_OR_LATER(ah
)) {
1316 REG_WRITE(ah
, AR_WA
, ah
->WARegVal
);
1320 REG_WRITE(ah
, AR_RTC_FORCE_WAKE
, AR_RTC_FORCE_WAKE_EN
|
1321 AR_RTC_FORCE_WAKE_ON_INT
);
1323 if (!AR_SREV_9100(ah
) && !AR_SREV_9300_20_OR_LATER(ah
))
1324 REG_WRITE(ah
, AR_RC
, AR_RC_AHB
);
1326 REG_WRITE(ah
, AR_RTC_RESET
, 0);
1328 REGWRITE_BUFFER_FLUSH(ah
);
1330 if (!AR_SREV_9300_20_OR_LATER(ah
))
1333 if (!AR_SREV_9100(ah
) && !AR_SREV_9300_20_OR_LATER(ah
))
1334 REG_WRITE(ah
, AR_RC
, 0);
1336 REG_WRITE(ah
, AR_RTC_RESET
, 1);
1338 if (!ath9k_hw_wait(ah
,
1343 ath_dbg(ath9k_hw_common(ah
), ATH_DBG_RESET
,
1344 "RTC not waking up\n");
1348 return ath9k_hw_set_reset(ah
, ATH9K_RESET_WARM
);
1351 static bool ath9k_hw_set_reset_reg(struct ath_hw
*ah
, u32 type
)
1354 if (AR_SREV_9300_20_OR_LATER(ah
)) {
1355 REG_WRITE(ah
, AR_WA
, ah
->WARegVal
);
1359 REG_WRITE(ah
, AR_RTC_FORCE_WAKE
,
1360 AR_RTC_FORCE_WAKE_EN
| AR_RTC_FORCE_WAKE_ON_INT
);
1363 case ATH9K_RESET_POWER_ON
:
1364 return ath9k_hw_set_reset_power_on(ah
);
1365 case ATH9K_RESET_WARM
:
1366 case ATH9K_RESET_COLD
:
1367 return ath9k_hw_set_reset(ah
, type
);
1373 static bool ath9k_hw_chip_reset(struct ath_hw
*ah
,
1374 struct ath9k_channel
*chan
)
1376 if (AR_SREV_9280(ah
) && ah
->eep_ops
->get_eeprom(ah
, EEP_OL_PWRCTRL
)) {
1377 if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_POWER_ON
))
1379 } else if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_WARM
))
1382 if (!ath9k_hw_setpower(ah
, ATH9K_PM_AWAKE
))
1385 ah
->chip_fullsleep
= false;
1386 ath9k_hw_init_pll(ah
, chan
);
1387 ath9k_hw_set_rfmode(ah
, chan
);
1392 static bool ath9k_hw_channel_change(struct ath_hw
*ah
,
1393 struct ath9k_channel
*chan
)
1395 struct ath_common
*common
= ath9k_hw_common(ah
);
1398 bool edma
= !!(ah
->caps
.hw_caps
& ATH9K_HW_CAP_EDMA
);
1399 bool band_switch
, mode_diff
;
1402 band_switch
= (chan
->channelFlags
& (CHANNEL_2GHZ
| CHANNEL_5GHZ
)) !=
1403 (ah
->curchan
->channelFlags
& (CHANNEL_2GHZ
|
1405 mode_diff
= (chan
->chanmode
!= ah
->curchan
->chanmode
);
1407 for (qnum
= 0; qnum
< AR_NUM_QCU
; qnum
++) {
1408 if (ath9k_hw_numtxpending(ah
, qnum
)) {
1409 ath_dbg(common
, ATH_DBG_QUEUE
,
1410 "Transmit frames pending on queue %d\n", qnum
);
1415 if (!ath9k_hw_rfbus_req(ah
)) {
1416 ath_err(common
, "Could not kill baseband RX\n");
1420 if (edma
&& (band_switch
|| mode_diff
)) {
1421 ath9k_hw_mark_phy_inactive(ah
);
1424 ath9k_hw_init_pll(ah
, NULL
);
1426 if (ath9k_hw_fast_chan_change(ah
, chan
, &ini_reloaded
)) {
1427 ath_err(common
, "Failed to do fast channel change\n");
1432 ath9k_hw_set_channel_regs(ah
, chan
);
1434 r
= ath9k_hw_rf_set_freq(ah
, chan
);
1436 ath_err(common
, "Failed to set channel\n");
1439 ath9k_hw_set_clockrate(ah
);
1440 ath9k_hw_apply_txpower(ah
, chan
);
1441 ath9k_hw_rfbus_done(ah
);
1443 if (IS_CHAN_OFDM(chan
) || IS_CHAN_HT(chan
))
1444 ath9k_hw_set_delta_slope(ah
, chan
);
1446 ath9k_hw_spur_mitigate_freq(ah
, chan
);
1448 if (edma
&& (band_switch
|| mode_diff
)) {
1449 ah
->ah_flags
|= AH_FASTCC
;
1450 if (band_switch
|| ini_reloaded
)
1451 ah
->eep_ops
->set_board_values(ah
, chan
);
1453 ath9k_hw_init_bb(ah
, chan
);
1455 if (band_switch
|| ini_reloaded
)
1456 ath9k_hw_init_cal(ah
, chan
);
1457 ah
->ah_flags
&= ~AH_FASTCC
;
1463 static void ath9k_hw_apply_gpio_override(struct ath_hw
*ah
)
1465 u32 gpio_mask
= ah
->gpio_mask
;
1468 for (i
= 0; gpio_mask
; i
++, gpio_mask
>>= 1) {
1469 if (!(gpio_mask
& 1))
1472 ath9k_hw_cfg_output(ah
, i
, AR_GPIO_OUTPUT_MUX_AS_OUTPUT
);
1473 ath9k_hw_set_gpio(ah
, i
, !!(ah
->gpio_val
& BIT(i
)));
1477 bool ath9k_hw_check_alive(struct ath_hw
*ah
)
1482 if (AR_SREV_9285_12_OR_LATER(ah
))
1486 reg
= REG_READ(ah
, AR_OBS_BUS_1
);
1488 if ((reg
& 0x7E7FFFEF) == 0x00702400)
1491 switch (reg
& 0x7E000B00) {
1499 } while (count
-- > 0);
1503 EXPORT_SYMBOL(ath9k_hw_check_alive
);
1505 int ath9k_hw_reset(struct ath_hw
*ah
, struct ath9k_channel
*chan
,
1506 struct ath9k_hw_cal_data
*caldata
, bool bChannelChange
)
1508 struct ath_common
*common
= ath9k_hw_common(ah
);
1510 struct ath9k_channel
*curchan
= ah
->curchan
;
1515 bool allow_fbs
= false;
1517 if (!ath9k_hw_setpower(ah
, ATH9K_PM_AWAKE
))
1520 if (curchan
&& !ah
->chip_fullsleep
)
1521 ath9k_hw_getnf(ah
, curchan
);
1523 ah
->caldata
= caldata
;
1525 (chan
->channel
!= caldata
->channel
||
1526 (chan
->channelFlags
& ~CHANNEL_CW_INT
) !=
1527 (caldata
->channelFlags
& ~CHANNEL_CW_INT
))) {
1528 /* Operating channel changed, reset channel calibration data */
1529 memset(caldata
, 0, sizeof(*caldata
));
1530 ath9k_init_nfcal_hist_buffer(ah
, chan
);
1532 ah
->noise
= ath9k_hw_getchan_noise(ah
, chan
);
1534 if (AR_SREV_9280(ah
) && common
->bus_ops
->ath_bus_type
== ATH_PCI
)
1535 bChannelChange
= false;
1538 caldata
->done_txiqcal_once
&&
1539 caldata
->done_txclcal_once
&&
1540 caldata
->rtt_hist
.num_readings
)
1543 if (bChannelChange
&&
1544 (ah
->chip_fullsleep
!= true) &&
1545 (ah
->curchan
!= NULL
) &&
1546 (chan
->channel
!= ah
->curchan
->channel
) &&
1548 ((chan
->channelFlags
& CHANNEL_ALL
) ==
1549 (ah
->curchan
->channelFlags
& CHANNEL_ALL
)))) {
1550 if (ath9k_hw_channel_change(ah
, chan
)) {
1551 ath9k_hw_loadnf(ah
, ah
->curchan
);
1552 ath9k_hw_start_nfcal(ah
, true);
1553 if (AR_SREV_9271(ah
))
1554 ar9002_hw_load_ani_reg(ah
, chan
);
1559 saveDefAntenna
= REG_READ(ah
, AR_DEF_ANTENNA
);
1560 if (saveDefAntenna
== 0)
1563 macStaId1
= REG_READ(ah
, AR_STA_ID1
) & AR_STA_ID1_BASE_RATE_11B
;
1565 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1566 if (AR_SREV_9100(ah
) ||
1567 (AR_SREV_9280(ah
) && ah
->eep_ops
->get_eeprom(ah
, EEP_OL_PWRCTRL
)))
1568 tsf
= ath9k_hw_gettsf64(ah
);
1570 saveLedState
= REG_READ(ah
, AR_CFG_LED
) &
1571 (AR_CFG_LED_ASSOC_CTL
| AR_CFG_LED_MODE_SEL
|
1572 AR_CFG_LED_BLINK_THRESH_SEL
| AR_CFG_LED_BLINK_SLOW
);
1574 ath9k_hw_mark_phy_inactive(ah
);
1576 ah
->paprd_table_write_done
= false;
1578 /* Only required on the first reset */
1579 if (AR_SREV_9271(ah
) && ah
->htc_reset_init
) {
1581 AR9271_RESET_POWER_DOWN_CONTROL
,
1582 AR9271_RADIO_RF_RST
);
1586 if (!ath9k_hw_chip_reset(ah
, chan
)) {
1587 ath_err(common
, "Chip reset failed\n");
1591 /* Only required on the first reset */
1592 if (AR_SREV_9271(ah
) && ah
->htc_reset_init
) {
1593 ah
->htc_reset_init
= false;
1595 AR9271_RESET_POWER_DOWN_CONTROL
,
1596 AR9271_GATE_MAC_CTL
);
1602 ath9k_hw_settsf64(ah
, tsf
);
1604 if (AR_SREV_9280_20_OR_LATER(ah
))
1605 REG_SET_BIT(ah
, AR_GPIO_INPUT_EN_VAL
, AR_GPIO_JTAG_DISABLE
);
1607 if (!AR_SREV_9300_20_OR_LATER(ah
))
1608 ar9002_hw_enable_async_fifo(ah
);
1610 r
= ath9k_hw_process_ini(ah
, chan
);
1615 * Some AR91xx SoC devices frequently fail to accept TSF writes
1616 * right after the chip reset. When that happens, write a new
1617 * value after the initvals have been applied, with an offset
1618 * based on measured time difference
1620 if (AR_SREV_9100(ah
) && (ath9k_hw_gettsf64(ah
) < tsf
)) {
1622 ath9k_hw_settsf64(ah
, tsf
);
1625 /* Setup MFP options for CCMP */
1626 if (AR_SREV_9280_20_OR_LATER(ah
)) {
1627 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1628 * frames when constructing CCMP AAD. */
1629 REG_RMW_FIELD(ah
, AR_AES_MUTE_MASK1
, AR_AES_MUTE_MASK1_FC_MGMT
,
1631 ah
->sw_mgmt_crypto
= false;
1632 } else if (AR_SREV_9160_10_OR_LATER(ah
)) {
1633 /* Disable hardware crypto for management frames */
1634 REG_CLR_BIT(ah
, AR_PCU_MISC_MODE2
,
1635 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE
);
1636 REG_SET_BIT(ah
, AR_PCU_MISC_MODE2
,
1637 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT
);
1638 ah
->sw_mgmt_crypto
= true;
1640 ah
->sw_mgmt_crypto
= true;
1642 if (IS_CHAN_OFDM(chan
) || IS_CHAN_HT(chan
))
1643 ath9k_hw_set_delta_slope(ah
, chan
);
1645 ath9k_hw_spur_mitigate_freq(ah
, chan
);
1646 ah
->eep_ops
->set_board_values(ah
, chan
);
1648 ENABLE_REGWRITE_BUFFER(ah
);
1650 REG_WRITE(ah
, AR_STA_ID0
, get_unaligned_le32(common
->macaddr
));
1651 REG_WRITE(ah
, AR_STA_ID1
, get_unaligned_le16(common
->macaddr
+ 4)
1653 | AR_STA_ID1_RTS_USE_DEF
1655 ack_6mb
? AR_STA_ID1_ACKCTS_6MB
: 0)
1656 | ah
->sta_id1_defaults
);
1657 ath_hw_setbssidmask(common
);
1658 REG_WRITE(ah
, AR_DEF_ANTENNA
, saveDefAntenna
);
1659 ath9k_hw_write_associd(ah
);
1660 REG_WRITE(ah
, AR_ISR
, ~0);
1661 REG_WRITE(ah
, AR_RSSI_THR
, INIT_RSSI_THR
);
1663 REGWRITE_BUFFER_FLUSH(ah
);
1665 ath9k_hw_set_operating_mode(ah
, ah
->opmode
);
1667 r
= ath9k_hw_rf_set_freq(ah
, chan
);
1671 ath9k_hw_set_clockrate(ah
);
1673 ENABLE_REGWRITE_BUFFER(ah
);
1675 for (i
= 0; i
< AR_NUM_DCU
; i
++)
1676 REG_WRITE(ah
, AR_DQCUMASK(i
), 1 << i
);
1678 REGWRITE_BUFFER_FLUSH(ah
);
1681 for (i
= 0; i
< ATH9K_NUM_TX_QUEUES
; i
++)
1682 ath9k_hw_resettxqueue(ah
, i
);
1684 ath9k_hw_init_interrupt_masks(ah
, ah
->opmode
);
1685 ath9k_hw_ani_cache_ini_regs(ah
);
1686 ath9k_hw_init_qos(ah
);
1688 if (ah
->caps
.hw_caps
& ATH9K_HW_CAP_RFSILENT
)
1689 ath9k_hw_cfg_gpio_input(ah
, ah
->rfkill_gpio
);
1691 ath9k_hw_init_global_settings(ah
);
1693 if (AR_SREV_9287(ah
) && AR_SREV_9287_13_OR_LATER(ah
)) {
1694 REG_SET_BIT(ah
, AR_MAC_PCU_LOGIC_ANALYZER
,
1695 AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768
);
1696 REG_RMW_FIELD(ah
, AR_AHB_MODE
, AR_AHB_CUSTOM_BURST_EN
,
1697 AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL
);
1698 REG_SET_BIT(ah
, AR_PCU_MISC_MODE2
,
1699 AR_PCU_MISC_MODE2_ENABLE_AGGWEP
);
1702 REG_SET_BIT(ah
, AR_STA_ID1
, AR_STA_ID1_PRESERVE_SEQNUM
);
1704 ath9k_hw_set_dma(ah
);
1706 REG_WRITE(ah
, AR_OBS
, 8);
1708 if (ah
->config
.rx_intr_mitigation
) {
1709 REG_RMW_FIELD(ah
, AR_RIMT
, AR_RIMT_LAST
, 500);
1710 REG_RMW_FIELD(ah
, AR_RIMT
, AR_RIMT_FIRST
, 2000);
1713 if (ah
->config
.tx_intr_mitigation
) {
1714 REG_RMW_FIELD(ah
, AR_TIMT
, AR_TIMT_LAST
, 300);
1715 REG_RMW_FIELD(ah
, AR_TIMT
, AR_TIMT_FIRST
, 750);
1718 ath9k_hw_init_bb(ah
, chan
);
1721 caldata
->done_txiqcal_once
= false;
1722 caldata
->done_txclcal_once
= false;
1723 caldata
->rtt_hist
.num_readings
= 0;
1725 if (!ath9k_hw_init_cal(ah
, chan
))
1728 ENABLE_REGWRITE_BUFFER(ah
);
1730 ath9k_hw_restore_chainmask(ah
);
1731 REG_WRITE(ah
, AR_CFG_LED
, saveLedState
| AR_CFG_SCLK_32KHZ
);
1733 REGWRITE_BUFFER_FLUSH(ah
);
1736 * For big endian systems turn on swapping for descriptors
1738 if (AR_SREV_9100(ah
)) {
1740 mask
= REG_READ(ah
, AR_CFG
);
1741 if (mask
& (AR_CFG_SWRB
| AR_CFG_SWTB
| AR_CFG_SWRG
)) {
1742 ath_dbg(common
, ATH_DBG_RESET
,
1743 "CFG Byte Swap Set 0x%x\n", mask
);
1746 INIT_CONFIG_STATUS
| AR_CFG_SWRB
| AR_CFG_SWTB
;
1747 REG_WRITE(ah
, AR_CFG
, mask
);
1748 ath_dbg(common
, ATH_DBG_RESET
,
1749 "Setting CFG 0x%x\n", REG_READ(ah
, AR_CFG
));
1752 if (common
->bus_ops
->ath_bus_type
== ATH_USB
) {
1753 /* Configure AR9271 target WLAN */
1754 if (AR_SREV_9271(ah
))
1755 REG_WRITE(ah
, AR_CFG
, AR_CFG_SWRB
| AR_CFG_SWTB
);
1757 REG_WRITE(ah
, AR_CFG
, AR_CFG_SWTD
| AR_CFG_SWRD
);
1760 else if (AR_SREV_9330(ah
) || AR_SREV_9340(ah
))
1761 REG_RMW(ah
, AR_CFG
, AR_CFG_SWRB
| AR_CFG_SWTB
, 0);
1763 REG_WRITE(ah
, AR_CFG
, AR_CFG_SWTD
| AR_CFG_SWRD
);
1767 if (ah
->btcoex_hw
.enabled
)
1768 ath9k_hw_btcoex_enable(ah
);
1770 if (AR_SREV_9300_20_OR_LATER(ah
)) {
1771 ar9003_hw_bb_watchdog_config(ah
);
1773 ar9003_hw_disable_phy_restart(ah
);
1776 ath9k_hw_apply_gpio_override(ah
);
1780 EXPORT_SYMBOL(ath9k_hw_reset
);
1782 /******************************/
1783 /* Power Management (Chipset) */
1784 /******************************/
1787 * Notify Power Mgt is disabled in self-generated frames.
1788 * If requested, force chip to sleep.
1790 static void ath9k_set_power_sleep(struct ath_hw
*ah
, int setChip
)
1792 REG_SET_BIT(ah
, AR_STA_ID1
, AR_STA_ID1_PWR_SAV
);
1794 if (AR_SREV_9462(ah
)) {
1795 REG_WRITE(ah
, AR_TIMER_MODE
,
1796 REG_READ(ah
, AR_TIMER_MODE
) & 0xFFFFFF00);
1797 REG_WRITE(ah
, AR_NDP2_TIMER_MODE
, REG_READ(ah
,
1798 AR_NDP2_TIMER_MODE
) & 0xFFFFFF00);
1799 REG_WRITE(ah
, AR_SLP32_INC
,
1800 REG_READ(ah
, AR_SLP32_INC
) & 0xFFF00000);
1801 /* xxx Required for WLAN only case ? */
1802 REG_WRITE(ah
, AR_MCI_INTERRUPT_RX_MSG_EN
, 0);
1807 * Clear the RTC force wake bit to allow the
1808 * mac to go to sleep.
1810 REG_CLR_BIT(ah
, AR_RTC_FORCE_WAKE
, AR_RTC_FORCE_WAKE_EN
);
1812 if (AR_SREV_9462(ah
))
1815 if (!AR_SREV_9100(ah
) && !AR_SREV_9300_20_OR_LATER(ah
))
1816 REG_WRITE(ah
, AR_RC
, AR_RC_AHB
| AR_RC_HOSTIF
);
1818 /* Shutdown chip. Active low */
1819 if (!AR_SREV_5416(ah
) &&
1820 !AR_SREV_9271(ah
) && !AR_SREV_9462_10(ah
)) {
1821 REG_CLR_BIT(ah
, AR_RTC_RESET
, AR_RTC_RESET_EN
);
1826 /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
1827 REG_WRITE(ah
, AR_WA
, ah
->WARegVal
& ~AR_WA_D3_L1_DISABLE
);
1831 * Notify Power Management is enabled in self-generating
1832 * frames. If request, set power mode of chip to
1833 * auto/normal. Duration in units of 128us (1/8 TU).
1835 static void ath9k_set_power_network_sleep(struct ath_hw
*ah
, int setChip
)
1839 REG_SET_BIT(ah
, AR_STA_ID1
, AR_STA_ID1_PWR_SAV
);
1841 struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
1843 if (!(pCap
->hw_caps
& ATH9K_HW_CAP_AUTOSLEEP
)) {
1844 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1845 REG_WRITE(ah
, AR_RTC_FORCE_WAKE
,
1846 AR_RTC_FORCE_WAKE_ON_INT
);
1849 /* When chip goes into network sleep, it could be waken
1850 * up by MCI_INT interrupt caused by BT's HW messages
1851 * (LNA_xxx, CONT_xxx) which chould be in a very fast
1852 * rate (~100us). This will cause chip to leave and
1853 * re-enter network sleep mode frequently, which in
1854 * consequence will have WLAN MCI HW to generate lots of
1855 * SYS_WAKING and SYS_SLEEPING messages which will make
1856 * BT CPU to busy to process.
1858 if (AR_SREV_9462(ah
)) {
1859 val
= REG_READ(ah
, AR_MCI_INTERRUPT_RX_MSG_EN
) &
1860 ~AR_MCI_INTERRUPT_RX_HW_MSG_MASK
;
1861 REG_WRITE(ah
, AR_MCI_INTERRUPT_RX_MSG_EN
, val
);
1864 * Clear the RTC force wake bit to allow the
1865 * mac to go to sleep.
1867 REG_CLR_BIT(ah
, AR_RTC_FORCE_WAKE
,
1868 AR_RTC_FORCE_WAKE_EN
);
1870 if (AR_SREV_9462(ah
))
1875 /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */
1876 if (AR_SREV_9300_20_OR_LATER(ah
))
1877 REG_WRITE(ah
, AR_WA
, ah
->WARegVal
& ~AR_WA_D3_L1_DISABLE
);
1880 static bool ath9k_hw_set_power_awake(struct ath_hw
*ah
, int setChip
)
1885 /* Set Bits 14 and 17 of AR_WA before powering on the chip. */
1886 if (AR_SREV_9300_20_OR_LATER(ah
)) {
1887 REG_WRITE(ah
, AR_WA
, ah
->WARegVal
);
1892 if ((REG_READ(ah
, AR_RTC_STATUS
) &
1893 AR_RTC_STATUS_M
) == AR_RTC_STATUS_SHUTDOWN
) {
1894 if (ath9k_hw_set_reset_reg(ah
,
1895 ATH9K_RESET_POWER_ON
) != true) {
1898 if (!AR_SREV_9300_20_OR_LATER(ah
))
1899 ath9k_hw_init_pll(ah
, NULL
);
1901 if (AR_SREV_9100(ah
))
1902 REG_SET_BIT(ah
, AR_RTC_RESET
,
1905 REG_SET_BIT(ah
, AR_RTC_FORCE_WAKE
,
1906 AR_RTC_FORCE_WAKE_EN
);
1909 for (i
= POWER_UP_TIME
/ 50; i
> 0; i
--) {
1910 val
= REG_READ(ah
, AR_RTC_STATUS
) & AR_RTC_STATUS_M
;
1911 if (val
== AR_RTC_STATUS_ON
)
1914 REG_SET_BIT(ah
, AR_RTC_FORCE_WAKE
,
1915 AR_RTC_FORCE_WAKE_EN
);
1918 ath_err(ath9k_hw_common(ah
),
1919 "Failed to wakeup in %uus\n",
1920 POWER_UP_TIME
/ 20);
1925 REG_CLR_BIT(ah
, AR_STA_ID1
, AR_STA_ID1_PWR_SAV
);
1930 bool ath9k_hw_setpower(struct ath_hw
*ah
, enum ath9k_power_mode mode
)
1932 struct ath_common
*common
= ath9k_hw_common(ah
);
1933 int status
= true, setChip
= true;
1934 static const char *modes
[] = {
1941 if (ah
->power_mode
== mode
)
1944 ath_dbg(common
, ATH_DBG_RESET
, "%s -> %s\n",
1945 modes
[ah
->power_mode
], modes
[mode
]);
1948 case ATH9K_PM_AWAKE
:
1949 status
= ath9k_hw_set_power_awake(ah
, setChip
);
1951 case ATH9K_PM_FULL_SLEEP
:
1952 ath9k_set_power_sleep(ah
, setChip
);
1953 ah
->chip_fullsleep
= true;
1955 case ATH9K_PM_NETWORK_SLEEP
:
1956 ath9k_set_power_network_sleep(ah
, setChip
);
1959 ath_err(common
, "Unknown power mode %u\n", mode
);
1962 ah
->power_mode
= mode
;
1965 * XXX: If this warning never comes up after a while then
1966 * simply keep the ATH_DBG_WARN_ON_ONCE() but make
1967 * ath9k_hw_setpower() return type void.
1970 if (!(ah
->ah_flags
& AH_UNPLUGGED
))
1971 ATH_DBG_WARN_ON_ONCE(!status
);
1975 EXPORT_SYMBOL(ath9k_hw_setpower
);
1977 /*******************/
1978 /* Beacon Handling */
1979 /*******************/
1981 void ath9k_hw_beaconinit(struct ath_hw
*ah
, u32 next_beacon
, u32 beacon_period
)
1985 ENABLE_REGWRITE_BUFFER(ah
);
1987 switch (ah
->opmode
) {
1988 case NL80211_IFTYPE_ADHOC
:
1989 case NL80211_IFTYPE_MESH_POINT
:
1990 REG_SET_BIT(ah
, AR_TXCFG
,
1991 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY
);
1992 REG_WRITE(ah
, AR_NEXT_NDP_TIMER
, next_beacon
+
1993 TU_TO_USEC(ah
->atim_window
? ah
->atim_window
: 1));
1994 flags
|= AR_NDP_TIMER_EN
;
1995 case NL80211_IFTYPE_AP
:
1996 REG_WRITE(ah
, AR_NEXT_TBTT_TIMER
, next_beacon
);
1997 REG_WRITE(ah
, AR_NEXT_DMA_BEACON_ALERT
, next_beacon
-
1998 TU_TO_USEC(ah
->config
.dma_beacon_response_time
));
1999 REG_WRITE(ah
, AR_NEXT_SWBA
, next_beacon
-
2000 TU_TO_USEC(ah
->config
.sw_beacon_response_time
));
2002 AR_TBTT_TIMER_EN
| AR_DBA_TIMER_EN
| AR_SWBA_TIMER_EN
;
2005 ath_dbg(ath9k_hw_common(ah
), ATH_DBG_BEACON
,
2006 "%s: unsupported opmode: %d\n",
2007 __func__
, ah
->opmode
);
2012 REG_WRITE(ah
, AR_BEACON_PERIOD
, beacon_period
);
2013 REG_WRITE(ah
, AR_DMA_BEACON_PERIOD
, beacon_period
);
2014 REG_WRITE(ah
, AR_SWBA_PERIOD
, beacon_period
);
2015 REG_WRITE(ah
, AR_NDP_PERIOD
, beacon_period
);
2017 REGWRITE_BUFFER_FLUSH(ah
);
2019 REG_SET_BIT(ah
, AR_TIMER_MODE
, flags
);
2021 EXPORT_SYMBOL(ath9k_hw_beaconinit
);
2023 void ath9k_hw_set_sta_beacon_timers(struct ath_hw
*ah
,
2024 const struct ath9k_beacon_state
*bs
)
2026 u32 nextTbtt
, beaconintval
, dtimperiod
, beacontimeout
;
2027 struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
2028 struct ath_common
*common
= ath9k_hw_common(ah
);
2030 ENABLE_REGWRITE_BUFFER(ah
);
2032 REG_WRITE(ah
, AR_NEXT_TBTT_TIMER
, TU_TO_USEC(bs
->bs_nexttbtt
));
2034 REG_WRITE(ah
, AR_BEACON_PERIOD
,
2035 TU_TO_USEC(bs
->bs_intval
));
2036 REG_WRITE(ah
, AR_DMA_BEACON_PERIOD
,
2037 TU_TO_USEC(bs
->bs_intval
));
2039 REGWRITE_BUFFER_FLUSH(ah
);
2041 REG_RMW_FIELD(ah
, AR_RSSI_THR
,
2042 AR_RSSI_THR_BM_THR
, bs
->bs_bmissthreshold
);
2044 beaconintval
= bs
->bs_intval
;
2046 if (bs
->bs_sleepduration
> beaconintval
)
2047 beaconintval
= bs
->bs_sleepduration
;
2049 dtimperiod
= bs
->bs_dtimperiod
;
2050 if (bs
->bs_sleepduration
> dtimperiod
)
2051 dtimperiod
= bs
->bs_sleepduration
;
2053 if (beaconintval
== dtimperiod
)
2054 nextTbtt
= bs
->bs_nextdtim
;
2056 nextTbtt
= bs
->bs_nexttbtt
;
2058 ath_dbg(common
, ATH_DBG_BEACON
, "next DTIM %d\n", bs
->bs_nextdtim
);
2059 ath_dbg(common
, ATH_DBG_BEACON
, "next beacon %d\n", nextTbtt
);
2060 ath_dbg(common
, ATH_DBG_BEACON
, "beacon period %d\n", beaconintval
);
2061 ath_dbg(common
, ATH_DBG_BEACON
, "DTIM period %d\n", dtimperiod
);
2063 ENABLE_REGWRITE_BUFFER(ah
);
2065 REG_WRITE(ah
, AR_NEXT_DTIM
,
2066 TU_TO_USEC(bs
->bs_nextdtim
- SLEEP_SLOP
));
2067 REG_WRITE(ah
, AR_NEXT_TIM
, TU_TO_USEC(nextTbtt
- SLEEP_SLOP
));
2069 REG_WRITE(ah
, AR_SLEEP1
,
2070 SM((CAB_TIMEOUT_VAL
<< 3), AR_SLEEP1_CAB_TIMEOUT
)
2071 | AR_SLEEP1_ASSUME_DTIM
);
2073 if (pCap
->hw_caps
& ATH9K_HW_CAP_AUTOSLEEP
)
2074 beacontimeout
= (BEACON_TIMEOUT_VAL
<< 3);
2076 beacontimeout
= MIN_BEACON_TIMEOUT_VAL
;
2078 REG_WRITE(ah
, AR_SLEEP2
,
2079 SM(beacontimeout
, AR_SLEEP2_BEACON_TIMEOUT
));
2081 REG_WRITE(ah
, AR_TIM_PERIOD
, TU_TO_USEC(beaconintval
));
2082 REG_WRITE(ah
, AR_DTIM_PERIOD
, TU_TO_USEC(dtimperiod
));
2084 REGWRITE_BUFFER_FLUSH(ah
);
2086 REG_SET_BIT(ah
, AR_TIMER_MODE
,
2087 AR_TBTT_TIMER_EN
| AR_TIM_TIMER_EN
|
2090 /* TSF Out of Range Threshold */
2091 REG_WRITE(ah
, AR_TSFOOR_THRESHOLD
, bs
->bs_tsfoor_threshold
);
2093 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers
);
2095 /*******************/
2096 /* HW Capabilities */
2097 /*******************/
2099 static u8
fixup_chainmask(u8 chip_chainmask
, u8 eeprom_chainmask
)
2101 eeprom_chainmask
&= chip_chainmask
;
2102 if (eeprom_chainmask
)
2103 return eeprom_chainmask
;
2105 return chip_chainmask
;
2108 int ath9k_hw_fill_cap_info(struct ath_hw
*ah
)
2110 struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
2111 struct ath_regulatory
*regulatory
= ath9k_hw_regulatory(ah
);
2112 struct ath_common
*common
= ath9k_hw_common(ah
);
2113 struct ath_btcoex_hw
*btcoex_hw
= &ah
->btcoex_hw
;
2114 unsigned int chip_chainmask
;
2117 u8 ant_div_ctl1
, tx_chainmask
, rx_chainmask
;
2119 eeval
= ah
->eep_ops
->get_eeprom(ah
, EEP_REG_0
);
2120 regulatory
->current_rd
= eeval
;
2122 if (ah
->opmode
!= NL80211_IFTYPE_AP
&&
2123 ah
->hw_version
.subvendorid
== AR_SUBVENDOR_ID_NEW_A
) {
2124 if (regulatory
->current_rd
== 0x64 ||
2125 regulatory
->current_rd
== 0x65)
2126 regulatory
->current_rd
+= 5;
2127 else if (regulatory
->current_rd
== 0x41)
2128 regulatory
->current_rd
= 0x43;
2129 ath_dbg(common
, ATH_DBG_REGULATORY
,
2130 "regdomain mapped to 0x%x\n", regulatory
->current_rd
);
2133 eeval
= ah
->eep_ops
->get_eeprom(ah
, EEP_OP_MODE
);
2134 if ((eeval
& (AR5416_OPFLAGS_11G
| AR5416_OPFLAGS_11A
)) == 0) {
2136 "no band has been marked as supported in EEPROM\n");
2140 if (eeval
& AR5416_OPFLAGS_11A
)
2141 pCap
->hw_caps
|= ATH9K_HW_CAP_5GHZ
;
2143 if (eeval
& AR5416_OPFLAGS_11G
)
2144 pCap
->hw_caps
|= ATH9K_HW_CAP_2GHZ
;
2146 if (AR_SREV_9485(ah
) || AR_SREV_9285(ah
) || AR_SREV_9330(ah
))
2148 else if (!AR_SREV_9280_20_OR_LATER(ah
))
2150 else if (!AR_SREV_9300_20_OR_LATER(ah
) || AR_SREV_9340(ah
))
2155 pCap
->tx_chainmask
= ah
->eep_ops
->get_eeprom(ah
, EEP_TX_MASK
);
2157 * For AR9271 we will temporarilly uses the rx chainmax as read from
2160 if ((ah
->hw_version
.devid
== AR5416_DEVID_PCI
) &&
2161 !(eeval
& AR5416_OPFLAGS_11A
) &&
2162 !(AR_SREV_9271(ah
)))
2163 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
2164 pCap
->rx_chainmask
= ath9k_hw_gpio_get(ah
, 0) ? 0x5 : 0x7;
2165 else if (AR_SREV_9100(ah
))
2166 pCap
->rx_chainmask
= 0x7;
2168 /* Use rx_chainmask from EEPROM. */
2169 pCap
->rx_chainmask
= ah
->eep_ops
->get_eeprom(ah
, EEP_RX_MASK
);
2171 pCap
->tx_chainmask
= fixup_chainmask(chip_chainmask
, pCap
->tx_chainmask
);
2172 pCap
->rx_chainmask
= fixup_chainmask(chip_chainmask
, pCap
->rx_chainmask
);
2173 ah
->txchainmask
= pCap
->tx_chainmask
;
2174 ah
->rxchainmask
= pCap
->rx_chainmask
;
2176 ah
->misc_mode
|= AR_PCU_MIC_NEW_LOC_ENA
;
2178 /* enable key search for every frame in an aggregate */
2179 if (AR_SREV_9300_20_OR_LATER(ah
))
2180 ah
->misc_mode
|= AR_PCU_ALWAYS_PERFORM_KEYSEARCH
;
2182 common
->crypt_caps
|= ATH_CRYPT_CAP_CIPHER_AESCCM
;
2184 if (ah
->hw_version
.devid
!= AR2427_DEVID_PCIE
)
2185 pCap
->hw_caps
|= ATH9K_HW_CAP_HT
;
2187 pCap
->hw_caps
&= ~ATH9K_HW_CAP_HT
;
2189 if (AR_SREV_9271(ah
))
2190 pCap
->num_gpio_pins
= AR9271_NUM_GPIO
;
2191 else if (AR_DEVID_7010(ah
))
2192 pCap
->num_gpio_pins
= AR7010_NUM_GPIO
;
2193 else if (AR_SREV_9300_20_OR_LATER(ah
))
2194 pCap
->num_gpio_pins
= AR9300_NUM_GPIO
;
2195 else if (AR_SREV_9287_11_OR_LATER(ah
))
2196 pCap
->num_gpio_pins
= AR9287_NUM_GPIO
;
2197 else if (AR_SREV_9285_12_OR_LATER(ah
))
2198 pCap
->num_gpio_pins
= AR9285_NUM_GPIO
;
2199 else if (AR_SREV_9280_20_OR_LATER(ah
))
2200 pCap
->num_gpio_pins
= AR928X_NUM_GPIO
;
2202 pCap
->num_gpio_pins
= AR_NUM_GPIO
;
2204 if (AR_SREV_9160_10_OR_LATER(ah
) || AR_SREV_9100(ah
)) {
2205 pCap
->hw_caps
|= ATH9K_HW_CAP_CST
;
2206 pCap
->rts_aggr_limit
= ATH_AMPDU_LIMIT_MAX
;
2208 pCap
->rts_aggr_limit
= (8 * 1024);
2211 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
2212 ah
->rfsilent
= ah
->eep_ops
->get_eeprom(ah
, EEP_RF_SILENT
);
2213 if (ah
->rfsilent
& EEP_RFSILENT_ENABLED
) {
2215 MS(ah
->rfsilent
, EEP_RFSILENT_GPIO_SEL
);
2216 ah
->rfkill_polarity
=
2217 MS(ah
->rfsilent
, EEP_RFSILENT_POLARITY
);
2219 pCap
->hw_caps
|= ATH9K_HW_CAP_RFSILENT
;
2222 if (AR_SREV_9271(ah
) || AR_SREV_9300_20_OR_LATER(ah
))
2223 pCap
->hw_caps
|= ATH9K_HW_CAP_AUTOSLEEP
;
2225 pCap
->hw_caps
&= ~ATH9K_HW_CAP_AUTOSLEEP
;
2227 if (AR_SREV_9280(ah
) || AR_SREV_9285(ah
))
2228 pCap
->hw_caps
&= ~ATH9K_HW_CAP_4KB_SPLITTRANS
;
2230 pCap
->hw_caps
|= ATH9K_HW_CAP_4KB_SPLITTRANS
;
2232 if (common
->btcoex_enabled
) {
2233 if (AR_SREV_9300_20_OR_LATER(ah
)) {
2234 btcoex_hw
->scheme
= ATH_BTCOEX_CFG_3WIRE
;
2235 btcoex_hw
->btactive_gpio
= ATH_BTACTIVE_GPIO_9300
;
2236 btcoex_hw
->wlanactive_gpio
= ATH_WLANACTIVE_GPIO_9300
;
2237 btcoex_hw
->btpriority_gpio
= ATH_BTPRIORITY_GPIO_9300
;
2238 } else if (AR_SREV_9280_20_OR_LATER(ah
)) {
2239 btcoex_hw
->btactive_gpio
= ATH_BTACTIVE_GPIO_9280
;
2240 btcoex_hw
->wlanactive_gpio
= ATH_WLANACTIVE_GPIO_9280
;
2242 if (AR_SREV_9285(ah
)) {
2243 btcoex_hw
->scheme
= ATH_BTCOEX_CFG_3WIRE
;
2244 btcoex_hw
->btpriority_gpio
=
2245 ATH_BTPRIORITY_GPIO_9285
;
2247 btcoex_hw
->scheme
= ATH_BTCOEX_CFG_2WIRE
;
2251 btcoex_hw
->scheme
= ATH_BTCOEX_CFG_NONE
;
2254 if (AR_SREV_9300_20_OR_LATER(ah
)) {
2255 pCap
->hw_caps
|= ATH9K_HW_CAP_EDMA
| ATH9K_HW_CAP_FASTCLOCK
;
2256 if (!AR_SREV_9330(ah
) && !AR_SREV_9485(ah
))
2257 pCap
->hw_caps
|= ATH9K_HW_CAP_LDPC
;
2259 pCap
->rx_hp_qdepth
= ATH9K_HW_RX_HP_QDEPTH
;
2260 pCap
->rx_lp_qdepth
= ATH9K_HW_RX_LP_QDEPTH
;
2261 pCap
->rx_status_len
= sizeof(struct ar9003_rxs
);
2262 pCap
->tx_desc_len
= sizeof(struct ar9003_txc
);
2263 pCap
->txs_len
= sizeof(struct ar9003_txs
);
2264 if (!ah
->config
.paprd_disable
&&
2265 ah
->eep_ops
->get_eeprom(ah
, EEP_PAPRD
))
2266 pCap
->hw_caps
|= ATH9K_HW_CAP_PAPRD
;
2268 pCap
->tx_desc_len
= sizeof(struct ath_desc
);
2269 if (AR_SREV_9280_20(ah
))
2270 pCap
->hw_caps
|= ATH9K_HW_CAP_FASTCLOCK
;
2273 if (AR_SREV_9300_20_OR_LATER(ah
))
2274 pCap
->hw_caps
|= ATH9K_HW_CAP_RAC_SUPPORTED
;
2276 if (AR_SREV_9300_20_OR_LATER(ah
))
2277 ah
->ent_mode
= REG_READ(ah
, AR_ENT_OTP
);
2279 if (AR_SREV_9287_11_OR_LATER(ah
) || AR_SREV_9271(ah
))
2280 pCap
->hw_caps
|= ATH9K_HW_CAP_SGI_20
;
2282 if (AR_SREV_9285(ah
))
2283 if (ah
->eep_ops
->get_eeprom(ah
, EEP_MODAL_VER
) >= 3) {
2285 ah
->eep_ops
->get_eeprom(ah
, EEP_ANT_DIV_CTL1
);
2286 if ((ant_div_ctl1
& 0x1) && ((ant_div_ctl1
>> 3) & 0x1))
2287 pCap
->hw_caps
|= ATH9K_HW_CAP_ANT_DIV_COMB
;
2289 if (AR_SREV_9300_20_OR_LATER(ah
)) {
2290 if (ah
->eep_ops
->get_eeprom(ah
, EEP_CHAIN_MASK_REDUCE
))
2291 pCap
->hw_caps
|= ATH9K_HW_CAP_APM
;
2295 if (AR_SREV_9330(ah
) || AR_SREV_9485(ah
)) {
2296 ant_div_ctl1
= ah
->eep_ops
->get_eeprom(ah
, EEP_ANT_DIV_CTL1
);
2298 * enable the diversity-combining algorithm only when
2299 * both enable_lna_div and enable_fast_div are set
2300 * Table for Diversity
2301 * ant_div_alt_lnaconf bit 0-1
2302 * ant_div_main_lnaconf bit 2-3
2303 * ant_div_alt_gaintb bit 4
2304 * ant_div_main_gaintb bit 5
2305 * enable_ant_div_lnadiv bit 6
2306 * enable_ant_fast_div bit 7
2308 if ((ant_div_ctl1
>> 0x6) == 0x3)
2309 pCap
->hw_caps
|= ATH9K_HW_CAP_ANT_DIV_COMB
;
2312 if (AR_SREV_9485_10(ah
)) {
2313 pCap
->pcie_lcr_extsync_en
= true;
2314 pCap
->pcie_lcr_offset
= 0x80;
2317 tx_chainmask
= pCap
->tx_chainmask
;
2318 rx_chainmask
= pCap
->rx_chainmask
;
2319 while (tx_chainmask
|| rx_chainmask
) {
2320 if (tx_chainmask
& BIT(0))
2321 pCap
->max_txchains
++;
2322 if (rx_chainmask
& BIT(0))
2323 pCap
->max_rxchains
++;
2329 if (AR_SREV_9300_20_OR_LATER(ah
)) {
2330 ah
->enabled_cals
|= TX_IQ_CAL
;
2331 if (!AR_SREV_9330(ah
))
2332 ah
->enabled_cals
|= TX_IQ_ON_AGC_CAL
;
2334 if (AR_SREV_9462(ah
))
2335 pCap
->hw_caps
|= ATH9K_HW_CAP_RTT
;
2340 /****************************/
2341 /* GPIO / RFKILL / Antennae */
2342 /****************************/
2344 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw
*ah
,
2348 u32 gpio_shift
, tmp
;
2351 addr
= AR_GPIO_OUTPUT_MUX3
;
2353 addr
= AR_GPIO_OUTPUT_MUX2
;
2355 addr
= AR_GPIO_OUTPUT_MUX1
;
2357 gpio_shift
= (gpio
% 6) * 5;
2359 if (AR_SREV_9280_20_OR_LATER(ah
)
2360 || (addr
!= AR_GPIO_OUTPUT_MUX1
)) {
2361 REG_RMW(ah
, addr
, (type
<< gpio_shift
),
2362 (0x1f << gpio_shift
));
2364 tmp
= REG_READ(ah
, addr
);
2365 tmp
= ((tmp
& 0x1F0) << 1) | (tmp
& ~0x1F0);
2366 tmp
&= ~(0x1f << gpio_shift
);
2367 tmp
|= (type
<< gpio_shift
);
2368 REG_WRITE(ah
, addr
, tmp
);
2372 void ath9k_hw_cfg_gpio_input(struct ath_hw
*ah
, u32 gpio
)
2376 BUG_ON(gpio
>= ah
->caps
.num_gpio_pins
);
2378 if (AR_DEVID_7010(ah
)) {
2380 REG_RMW(ah
, AR7010_GPIO_OE
,
2381 (AR7010_GPIO_OE_AS_INPUT
<< gpio_shift
),
2382 (AR7010_GPIO_OE_MASK
<< gpio_shift
));
2386 gpio_shift
= gpio
<< 1;
2389 (AR_GPIO_OE_OUT_DRV_NO
<< gpio_shift
),
2390 (AR_GPIO_OE_OUT_DRV
<< gpio_shift
));
2392 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input
);
2394 u32
ath9k_hw_gpio_get(struct ath_hw
*ah
, u32 gpio
)
2396 #define MS_REG_READ(x, y) \
2397 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2399 if (gpio
>= ah
->caps
.num_gpio_pins
)
2402 if (AR_DEVID_7010(ah
)) {
2404 val
= REG_READ(ah
, AR7010_GPIO_IN
);
2405 return (MS(val
, AR7010_GPIO_IN_VAL
) & AR_GPIO_BIT(gpio
)) == 0;
2406 } else if (AR_SREV_9300_20_OR_LATER(ah
))
2407 return (MS(REG_READ(ah
, AR_GPIO_IN
), AR9300_GPIO_IN_VAL
) &
2408 AR_GPIO_BIT(gpio
)) != 0;
2409 else if (AR_SREV_9271(ah
))
2410 return MS_REG_READ(AR9271
, gpio
) != 0;
2411 else if (AR_SREV_9287_11_OR_LATER(ah
))
2412 return MS_REG_READ(AR9287
, gpio
) != 0;
2413 else if (AR_SREV_9285_12_OR_LATER(ah
))
2414 return MS_REG_READ(AR9285
, gpio
) != 0;
2415 else if (AR_SREV_9280_20_OR_LATER(ah
))
2416 return MS_REG_READ(AR928X
, gpio
) != 0;
2418 return MS_REG_READ(AR
, gpio
) != 0;
2420 EXPORT_SYMBOL(ath9k_hw_gpio_get
);
2422 void ath9k_hw_cfg_output(struct ath_hw
*ah
, u32 gpio
,
2427 if (AR_DEVID_7010(ah
)) {
2429 REG_RMW(ah
, AR7010_GPIO_OE
,
2430 (AR7010_GPIO_OE_AS_OUTPUT
<< gpio_shift
),
2431 (AR7010_GPIO_OE_MASK
<< gpio_shift
));
2435 ath9k_hw_gpio_cfg_output_mux(ah
, gpio
, ah_signal_type
);
2436 gpio_shift
= 2 * gpio
;
2439 (AR_GPIO_OE_OUT_DRV_ALL
<< gpio_shift
),
2440 (AR_GPIO_OE_OUT_DRV
<< gpio_shift
));
2442 EXPORT_SYMBOL(ath9k_hw_cfg_output
);
2444 void ath9k_hw_set_gpio(struct ath_hw
*ah
, u32 gpio
, u32 val
)
2446 if (AR_DEVID_7010(ah
)) {
2448 REG_RMW(ah
, AR7010_GPIO_OUT
, ((val
&1) << gpio
),
2453 if (AR_SREV_9271(ah
))
2456 REG_RMW(ah
, AR_GPIO_IN_OUT
, ((val
& 1) << gpio
),
2459 EXPORT_SYMBOL(ath9k_hw_set_gpio
);
2461 u32
ath9k_hw_getdefantenna(struct ath_hw
*ah
)
2463 return REG_READ(ah
, AR_DEF_ANTENNA
) & 0x7;
2465 EXPORT_SYMBOL(ath9k_hw_getdefantenna
);
2467 void ath9k_hw_setantenna(struct ath_hw
*ah
, u32 antenna
)
2469 REG_WRITE(ah
, AR_DEF_ANTENNA
, (antenna
& 0x7));
2471 EXPORT_SYMBOL(ath9k_hw_setantenna
);
2473 /*********************/
2474 /* General Operation */
2475 /*********************/
2477 u32
ath9k_hw_getrxfilter(struct ath_hw
*ah
)
2479 u32 bits
= REG_READ(ah
, AR_RX_FILTER
);
2480 u32 phybits
= REG_READ(ah
, AR_PHY_ERR
);
2482 if (phybits
& AR_PHY_ERR_RADAR
)
2483 bits
|= ATH9K_RX_FILTER_PHYRADAR
;
2484 if (phybits
& (AR_PHY_ERR_OFDM_TIMING
| AR_PHY_ERR_CCK_TIMING
))
2485 bits
|= ATH9K_RX_FILTER_PHYERR
;
2489 EXPORT_SYMBOL(ath9k_hw_getrxfilter
);
2491 void ath9k_hw_setrxfilter(struct ath_hw
*ah
, u32 bits
)
2495 ENABLE_REGWRITE_BUFFER(ah
);
2497 if (AR_SREV_9462(ah
))
2498 bits
|= ATH9K_RX_FILTER_CONTROL_WRAPPER
;
2500 REG_WRITE(ah
, AR_RX_FILTER
, bits
);
2503 if (bits
& ATH9K_RX_FILTER_PHYRADAR
)
2504 phybits
|= AR_PHY_ERR_RADAR
;
2505 if (bits
& ATH9K_RX_FILTER_PHYERR
)
2506 phybits
|= AR_PHY_ERR_OFDM_TIMING
| AR_PHY_ERR_CCK_TIMING
;
2507 REG_WRITE(ah
, AR_PHY_ERR
, phybits
);
2510 REG_SET_BIT(ah
, AR_RXCFG
, AR_RXCFG_ZLFDMA
);
2512 REG_CLR_BIT(ah
, AR_RXCFG
, AR_RXCFG_ZLFDMA
);
2514 REGWRITE_BUFFER_FLUSH(ah
);
2516 EXPORT_SYMBOL(ath9k_hw_setrxfilter
);
2518 bool ath9k_hw_phy_disable(struct ath_hw
*ah
)
2520 if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_WARM
))
2523 ath9k_hw_init_pll(ah
, NULL
);
2526 EXPORT_SYMBOL(ath9k_hw_phy_disable
);
2528 bool ath9k_hw_disable(struct ath_hw
*ah
)
2530 if (!ath9k_hw_setpower(ah
, ATH9K_PM_AWAKE
))
2533 if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_COLD
))
2536 ath9k_hw_init_pll(ah
, NULL
);
2539 EXPORT_SYMBOL(ath9k_hw_disable
);
2541 static int get_antenna_gain(struct ath_hw
*ah
, struct ath9k_channel
*chan
)
2543 enum eeprom_param gain_param
;
2545 if (IS_CHAN_2GHZ(chan
))
2546 gain_param
= EEP_ANTENNA_GAIN_2G
;
2548 gain_param
= EEP_ANTENNA_GAIN_5G
;
2550 return ah
->eep_ops
->get_eeprom(ah
, gain_param
);
2553 void ath9k_hw_apply_txpower(struct ath_hw
*ah
, struct ath9k_channel
*chan
)
2555 struct ath_regulatory
*reg
= ath9k_hw_regulatory(ah
);
2556 struct ieee80211_channel
*channel
;
2557 int chan_pwr
, new_pwr
, max_gain
;
2558 int ant_gain
, ant_reduction
= 0;
2563 channel
= chan
->chan
;
2564 chan_pwr
= min_t(int, channel
->max_power
* 2, MAX_RATE_POWER
);
2565 new_pwr
= min_t(int, chan_pwr
, reg
->power_limit
);
2566 max_gain
= chan_pwr
- new_pwr
+ channel
->max_antenna_gain
* 2;
2568 ant_gain
= get_antenna_gain(ah
, chan
);
2569 if (ant_gain
> max_gain
)
2570 ant_reduction
= ant_gain
- max_gain
;
2572 ah
->eep_ops
->set_txpower(ah
, chan
,
2573 ath9k_regd_get_ctl(reg
, chan
),
2574 ant_reduction
, new_pwr
, false);
2577 void ath9k_hw_set_txpowerlimit(struct ath_hw
*ah
, u32 limit
, bool test
)
2579 struct ath_regulatory
*reg
= ath9k_hw_regulatory(ah
);
2580 struct ath9k_channel
*chan
= ah
->curchan
;
2581 struct ieee80211_channel
*channel
= chan
->chan
;
2583 reg
->power_limit
= min_t(int, limit
, MAX_RATE_POWER
);
2585 channel
->max_power
= MAX_RATE_POWER
/ 2;
2587 ath9k_hw_apply_txpower(ah
, chan
);
2590 channel
->max_power
= DIV_ROUND_UP(reg
->max_power_level
, 2);
2592 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit
);
2594 void ath9k_hw_setopmode(struct ath_hw
*ah
)
2596 ath9k_hw_set_operating_mode(ah
, ah
->opmode
);
2598 EXPORT_SYMBOL(ath9k_hw_setopmode
);
2600 void ath9k_hw_setmcastfilter(struct ath_hw
*ah
, u32 filter0
, u32 filter1
)
2602 REG_WRITE(ah
, AR_MCAST_FIL0
, filter0
);
2603 REG_WRITE(ah
, AR_MCAST_FIL1
, filter1
);
2605 EXPORT_SYMBOL(ath9k_hw_setmcastfilter
);
2607 void ath9k_hw_write_associd(struct ath_hw
*ah
)
2609 struct ath_common
*common
= ath9k_hw_common(ah
);
2611 REG_WRITE(ah
, AR_BSS_ID0
, get_unaligned_le32(common
->curbssid
));
2612 REG_WRITE(ah
, AR_BSS_ID1
, get_unaligned_le16(common
->curbssid
+ 4) |
2613 ((common
->curaid
& 0x3fff) << AR_BSS_ID1_AID_S
));
2615 EXPORT_SYMBOL(ath9k_hw_write_associd
);
2617 #define ATH9K_MAX_TSF_READ 10
2619 u64
ath9k_hw_gettsf64(struct ath_hw
*ah
)
2621 u32 tsf_lower
, tsf_upper1
, tsf_upper2
;
2624 tsf_upper1
= REG_READ(ah
, AR_TSF_U32
);
2625 for (i
= 0; i
< ATH9K_MAX_TSF_READ
; i
++) {
2626 tsf_lower
= REG_READ(ah
, AR_TSF_L32
);
2627 tsf_upper2
= REG_READ(ah
, AR_TSF_U32
);
2628 if (tsf_upper2
== tsf_upper1
)
2630 tsf_upper1
= tsf_upper2
;
2633 WARN_ON( i
== ATH9K_MAX_TSF_READ
);
2635 return (((u64
)tsf_upper1
<< 32) | tsf_lower
);
2637 EXPORT_SYMBOL(ath9k_hw_gettsf64
);
2639 void ath9k_hw_settsf64(struct ath_hw
*ah
, u64 tsf64
)
2641 REG_WRITE(ah
, AR_TSF_L32
, tsf64
& 0xffffffff);
2642 REG_WRITE(ah
, AR_TSF_U32
, (tsf64
>> 32) & 0xffffffff);
2644 EXPORT_SYMBOL(ath9k_hw_settsf64
);
2646 void ath9k_hw_reset_tsf(struct ath_hw
*ah
)
2648 if (!ath9k_hw_wait(ah
, AR_SLP32_MODE
, AR_SLP32_TSF_WRITE_STATUS
, 0,
2649 AH_TSF_WRITE_TIMEOUT
))
2650 ath_dbg(ath9k_hw_common(ah
), ATH_DBG_RESET
,
2651 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2653 REG_WRITE(ah
, AR_RESET_TSF
, AR_RESET_TSF_ONCE
);
2655 EXPORT_SYMBOL(ath9k_hw_reset_tsf
);
2657 void ath9k_hw_set_tsfadjust(struct ath_hw
*ah
, u32 setting
)
2660 ah
->misc_mode
|= AR_PCU_TX_ADD_TSF
;
2662 ah
->misc_mode
&= ~AR_PCU_TX_ADD_TSF
;
2664 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust
);
2666 void ath9k_hw_set11nmac2040(struct ath_hw
*ah
)
2668 struct ieee80211_conf
*conf
= &ath9k_hw_common(ah
)->hw
->conf
;
2671 if (conf_is_ht40(conf
) && !ah
->config
.cwm_ignore_extcca
)
2672 macmode
= AR_2040_JOINED_RX_CLEAR
;
2676 REG_WRITE(ah
, AR_2040_MODE
, macmode
);
2679 /* HW Generic timers configuration */
2681 static const struct ath_gen_timer_configuration gen_tmr_configuration
[] =
2683 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2684 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2685 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2686 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2687 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2688 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2689 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2690 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2691 {AR_NEXT_NDP2_TIMER
, AR_NDP2_PERIOD
, AR_NDP2_TIMER_MODE
, 0x0001},
2692 {AR_NEXT_NDP2_TIMER
+ 1*4, AR_NDP2_PERIOD
+ 1*4,
2693 AR_NDP2_TIMER_MODE
, 0x0002},
2694 {AR_NEXT_NDP2_TIMER
+ 2*4, AR_NDP2_PERIOD
+ 2*4,
2695 AR_NDP2_TIMER_MODE
, 0x0004},
2696 {AR_NEXT_NDP2_TIMER
+ 3*4, AR_NDP2_PERIOD
+ 3*4,
2697 AR_NDP2_TIMER_MODE
, 0x0008},
2698 {AR_NEXT_NDP2_TIMER
+ 4*4, AR_NDP2_PERIOD
+ 4*4,
2699 AR_NDP2_TIMER_MODE
, 0x0010},
2700 {AR_NEXT_NDP2_TIMER
+ 5*4, AR_NDP2_PERIOD
+ 5*4,
2701 AR_NDP2_TIMER_MODE
, 0x0020},
2702 {AR_NEXT_NDP2_TIMER
+ 6*4, AR_NDP2_PERIOD
+ 6*4,
2703 AR_NDP2_TIMER_MODE
, 0x0040},
2704 {AR_NEXT_NDP2_TIMER
+ 7*4, AR_NDP2_PERIOD
+ 7*4,
2705 AR_NDP2_TIMER_MODE
, 0x0080}
2708 /* HW generic timer primitives */
2710 /* compute and clear index of rightmost 1 */
2711 static u32
rightmost_index(struct ath_gen_timer_table
*timer_table
, u32
*mask
)
2721 return timer_table
->gen_timer_index
[b
];
2724 u32
ath9k_hw_gettsf32(struct ath_hw
*ah
)
2726 return REG_READ(ah
, AR_TSF_L32
);
2728 EXPORT_SYMBOL(ath9k_hw_gettsf32
);
2730 struct ath_gen_timer
*ath_gen_timer_alloc(struct ath_hw
*ah
,
2731 void (*trigger
)(void *),
2732 void (*overflow
)(void *),
2736 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2737 struct ath_gen_timer
*timer
;
2739 timer
= kzalloc(sizeof(struct ath_gen_timer
), GFP_KERNEL
);
2741 if (timer
== NULL
) {
2742 ath_err(ath9k_hw_common(ah
),
2743 "Failed to allocate memory for hw timer[%d]\n",
2748 /* allocate a hardware generic timer slot */
2749 timer_table
->timers
[timer_index
] = timer
;
2750 timer
->index
= timer_index
;
2751 timer
->trigger
= trigger
;
2752 timer
->overflow
= overflow
;
2757 EXPORT_SYMBOL(ath_gen_timer_alloc
);
2759 void ath9k_hw_gen_timer_start(struct ath_hw
*ah
,
2760 struct ath_gen_timer
*timer
,
2764 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2765 u32 tsf
, timer_next
;
2767 BUG_ON(!timer_period
);
2769 set_bit(timer
->index
, &timer_table
->timer_mask
.timer_bits
);
2771 tsf
= ath9k_hw_gettsf32(ah
);
2773 timer_next
= tsf
+ trig_timeout
;
2775 ath_dbg(ath9k_hw_common(ah
), ATH_DBG_HWTIMER
,
2776 "current tsf %x period %x timer_next %x\n",
2777 tsf
, timer_period
, timer_next
);
2780 * Program generic timer registers
2782 REG_WRITE(ah
, gen_tmr_configuration
[timer
->index
].next_addr
,
2784 REG_WRITE(ah
, gen_tmr_configuration
[timer
->index
].period_addr
,
2786 REG_SET_BIT(ah
, gen_tmr_configuration
[timer
->index
].mode_addr
,
2787 gen_tmr_configuration
[timer
->index
].mode_mask
);
2789 if (AR_SREV_9462(ah
)) {
2791 * Starting from AR9462, each generic timer can select which tsf
2792 * to use. But we still follow the old rule, 0 - 7 use tsf and
2795 if ((timer
->index
< AR_GEN_TIMER_BANK_1_LEN
))
2796 REG_CLR_BIT(ah
, AR_MAC_PCU_GEN_TIMER_TSF_SEL
,
2797 (1 << timer
->index
));
2799 REG_SET_BIT(ah
, AR_MAC_PCU_GEN_TIMER_TSF_SEL
,
2800 (1 << timer
->index
));
2803 /* Enable both trigger and thresh interrupt masks */
2804 REG_SET_BIT(ah
, AR_IMR_S5
,
2805 (SM(AR_GENTMR_BIT(timer
->index
), AR_IMR_S5_GENTIMER_THRESH
) |
2806 SM(AR_GENTMR_BIT(timer
->index
), AR_IMR_S5_GENTIMER_TRIG
)));
2808 EXPORT_SYMBOL(ath9k_hw_gen_timer_start
);
2810 void ath9k_hw_gen_timer_stop(struct ath_hw
*ah
, struct ath_gen_timer
*timer
)
2812 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2814 if ((timer
->index
< AR_FIRST_NDP_TIMER
) ||
2815 (timer
->index
>= ATH_MAX_GEN_TIMER
)) {
2819 /* Clear generic timer enable bits. */
2820 REG_CLR_BIT(ah
, gen_tmr_configuration
[timer
->index
].mode_addr
,
2821 gen_tmr_configuration
[timer
->index
].mode_mask
);
2823 /* Disable both trigger and thresh interrupt masks */
2824 REG_CLR_BIT(ah
, AR_IMR_S5
,
2825 (SM(AR_GENTMR_BIT(timer
->index
), AR_IMR_S5_GENTIMER_THRESH
) |
2826 SM(AR_GENTMR_BIT(timer
->index
), AR_IMR_S5_GENTIMER_TRIG
)));
2828 clear_bit(timer
->index
, &timer_table
->timer_mask
.timer_bits
);
2830 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop
);
2832 void ath_gen_timer_free(struct ath_hw
*ah
, struct ath_gen_timer
*timer
)
2834 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2836 /* free the hardware generic timer slot */
2837 timer_table
->timers
[timer
->index
] = NULL
;
2840 EXPORT_SYMBOL(ath_gen_timer_free
);
2843 * Generic Timer Interrupts handling
2845 void ath_gen_timer_isr(struct ath_hw
*ah
)
2847 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2848 struct ath_gen_timer
*timer
;
2849 struct ath_common
*common
= ath9k_hw_common(ah
);
2850 u32 trigger_mask
, thresh_mask
, index
;
2852 /* get hardware generic timer interrupt status */
2853 trigger_mask
= ah
->intr_gen_timer_trigger
;
2854 thresh_mask
= ah
->intr_gen_timer_thresh
;
2855 trigger_mask
&= timer_table
->timer_mask
.val
;
2856 thresh_mask
&= timer_table
->timer_mask
.val
;
2858 trigger_mask
&= ~thresh_mask
;
2860 while (thresh_mask
) {
2861 index
= rightmost_index(timer_table
, &thresh_mask
);
2862 timer
= timer_table
->timers
[index
];
2864 ath_dbg(common
, ATH_DBG_HWTIMER
,
2865 "TSF overflow for Gen timer %d\n", index
);
2866 timer
->overflow(timer
->arg
);
2869 while (trigger_mask
) {
2870 index
= rightmost_index(timer_table
, &trigger_mask
);
2871 timer
= timer_table
->timers
[index
];
2873 ath_dbg(common
, ATH_DBG_HWTIMER
,
2874 "Gen timer[%d] trigger\n", index
);
2875 timer
->trigger(timer
->arg
);
2878 EXPORT_SYMBOL(ath_gen_timer_isr
);
2884 void ath9k_hw_htc_resetinit(struct ath_hw
*ah
)
2886 ah
->htc_reset_init
= true;
2888 EXPORT_SYMBOL(ath9k_hw_htc_resetinit
);
2893 } ath_mac_bb_names
[] = {
2894 /* Devices with external radios */
2895 { AR_SREV_VERSION_5416_PCI
, "5416" },
2896 { AR_SREV_VERSION_5416_PCIE
, "5418" },
2897 { AR_SREV_VERSION_9100
, "9100" },
2898 { AR_SREV_VERSION_9160
, "9160" },
2899 /* Single-chip solutions */
2900 { AR_SREV_VERSION_9280
, "9280" },
2901 { AR_SREV_VERSION_9285
, "9285" },
2902 { AR_SREV_VERSION_9287
, "9287" },
2903 { AR_SREV_VERSION_9271
, "9271" },
2904 { AR_SREV_VERSION_9300
, "9300" },
2905 { AR_SREV_VERSION_9330
, "9330" },
2906 { AR_SREV_VERSION_9340
, "9340" },
2907 { AR_SREV_VERSION_9485
, "9485" },
2908 { AR_SREV_VERSION_9462
, "9462" },
2911 /* For devices with external radios */
2915 } ath_rf_names
[] = {
2917 { AR_RAD5133_SREV_MAJOR
, "5133" },
2918 { AR_RAD5122_SREV_MAJOR
, "5122" },
2919 { AR_RAD2133_SREV_MAJOR
, "2133" },
2920 { AR_RAD2122_SREV_MAJOR
, "2122" }
2924 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2926 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version
)
2930 for (i
=0; i
<ARRAY_SIZE(ath_mac_bb_names
); i
++) {
2931 if (ath_mac_bb_names
[i
].version
== mac_bb_version
) {
2932 return ath_mac_bb_names
[i
].name
;
2940 * Return the RF name. "????" is returned if the RF is unknown.
2941 * Used for devices with external radios.
2943 static const char *ath9k_hw_rf_name(u16 rf_version
)
2947 for (i
=0; i
<ARRAY_SIZE(ath_rf_names
); i
++) {
2948 if (ath_rf_names
[i
].version
== rf_version
) {
2949 return ath_rf_names
[i
].name
;
2956 void ath9k_hw_name(struct ath_hw
*ah
, char *hw_name
, size_t len
)
2960 /* chipsets >= AR9280 are single-chip */
2961 if (AR_SREV_9280_20_OR_LATER(ah
)) {
2962 used
= snprintf(hw_name
, len
,
2963 "Atheros AR%s Rev:%x",
2964 ath9k_hw_mac_bb_name(ah
->hw_version
.macVersion
),
2965 ah
->hw_version
.macRev
);
2968 used
= snprintf(hw_name
, len
,
2969 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2970 ath9k_hw_mac_bb_name(ah
->hw_version
.macVersion
),
2971 ah
->hw_version
.macRev
,
2972 ath9k_hw_rf_name((ah
->hw_version
.analog5GhzRev
&
2973 AR_RADIO_SREV_MAJOR
)),
2974 ah
->hw_version
.phyRev
);
2977 hw_name
[used
] = '\0';
2979 EXPORT_SYMBOL(ath9k_hw_name
);