2 * Copyright (c) 2008-2010 Atheros Communications Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #include <asm/unaligned.h>
23 #include "ar9003_mac.h"
25 #define ATH9K_CLOCK_RATE_CCK 22
26 #define ATH9K_CLOCK_RATE_5GHZ_OFDM 40
27 #define ATH9K_CLOCK_RATE_2GHZ_OFDM 44
29 static bool ath9k_hw_set_reset_reg(struct ath_hw
*ah
, u32 type
);
31 MODULE_AUTHOR("Atheros Communications");
32 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
33 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
34 MODULE_LICENSE("Dual BSD/GPL");
36 static int __init
ath9k_init(void)
40 module_init(ath9k_init
);
42 static void __exit
ath9k_exit(void)
46 module_exit(ath9k_exit
);
48 /* Private hardware callbacks */
50 static void ath9k_hw_init_cal_settings(struct ath_hw
*ah
)
52 ath9k_hw_private_ops(ah
)->init_cal_settings(ah
);
55 static void ath9k_hw_init_mode_regs(struct ath_hw
*ah
)
57 ath9k_hw_private_ops(ah
)->init_mode_regs(ah
);
60 static bool ath9k_hw_macversion_supported(struct ath_hw
*ah
)
62 struct ath_hw_private_ops
*priv_ops
= ath9k_hw_private_ops(ah
);
64 return priv_ops
->macversion_supported(ah
->hw_version
.macVersion
);
67 static u32
ath9k_hw_compute_pll_control(struct ath_hw
*ah
,
68 struct ath9k_channel
*chan
)
70 return ath9k_hw_private_ops(ah
)->compute_pll_control(ah
, chan
);
73 static void ath9k_hw_init_mode_gain_regs(struct ath_hw
*ah
)
75 if (!ath9k_hw_private_ops(ah
)->init_mode_gain_regs
)
78 ath9k_hw_private_ops(ah
)->init_mode_gain_regs(ah
);
81 /********************/
82 /* Helper Functions */
83 /********************/
85 static u32
ath9k_hw_mac_clks(struct ath_hw
*ah
, u32 usecs
)
87 struct ieee80211_conf
*conf
= &ath9k_hw_common(ah
)->hw
->conf
;
89 if (!ah
->curchan
) /* should really check for CCK instead */
90 return usecs
*ATH9K_CLOCK_RATE_CCK
;
91 if (conf
->channel
->band
== IEEE80211_BAND_2GHZ
)
92 return usecs
*ATH9K_CLOCK_RATE_2GHZ_OFDM
;
93 return usecs
*ATH9K_CLOCK_RATE_5GHZ_OFDM
;
96 static u32
ath9k_hw_mac_to_clks(struct ath_hw
*ah
, u32 usecs
)
98 struct ieee80211_conf
*conf
= &ath9k_hw_common(ah
)->hw
->conf
;
100 if (conf_is_ht40(conf
))
101 return ath9k_hw_mac_clks(ah
, usecs
) * 2;
103 return ath9k_hw_mac_clks(ah
, usecs
);
106 bool ath9k_hw_wait(struct ath_hw
*ah
, u32 reg
, u32 mask
, u32 val
, u32 timeout
)
110 BUG_ON(timeout
< AH_TIME_QUANTUM
);
112 for (i
= 0; i
< (timeout
/ AH_TIME_QUANTUM
); i
++) {
113 if ((REG_READ(ah
, reg
) & mask
) == val
)
116 udelay(AH_TIME_QUANTUM
);
119 ath_print(ath9k_hw_common(ah
), ATH_DBG_ANY
,
120 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
121 timeout
, reg
, REG_READ(ah
, reg
), mask
, val
);
125 EXPORT_SYMBOL(ath9k_hw_wait
);
127 u32
ath9k_hw_reverse_bits(u32 val
, u32 n
)
132 for (i
= 0, retval
= 0; i
< n
; i
++) {
133 retval
= (retval
<< 1) | (val
& 1);
139 bool ath9k_get_channel_edges(struct ath_hw
*ah
,
143 struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
145 if (flags
& CHANNEL_5GHZ
) {
146 *low
= pCap
->low_5ghz_chan
;
147 *high
= pCap
->high_5ghz_chan
;
150 if ((flags
& CHANNEL_2GHZ
)) {
151 *low
= pCap
->low_2ghz_chan
;
152 *high
= pCap
->high_2ghz_chan
;
158 u16
ath9k_hw_computetxtime(struct ath_hw
*ah
,
160 u32 frameLen
, u16 rateix
,
163 u32 bitsPerSymbol
, numBits
, numSymbols
, phyTime
, txTime
;
169 case WLAN_RC_PHY_CCK
:
170 phyTime
= CCK_PREAMBLE_BITS
+ CCK_PLCP_BITS
;
173 numBits
= frameLen
<< 3;
174 txTime
= CCK_SIFS_TIME
+ phyTime
+ ((numBits
* 1000) / kbps
);
176 case WLAN_RC_PHY_OFDM
:
177 if (ah
->curchan
&& IS_CHAN_QUARTER_RATE(ah
->curchan
)) {
178 bitsPerSymbol
= (kbps
* OFDM_SYMBOL_TIME_QUARTER
) / 1000;
179 numBits
= OFDM_PLCP_BITS
+ (frameLen
<< 3);
180 numSymbols
= DIV_ROUND_UP(numBits
, bitsPerSymbol
);
181 txTime
= OFDM_SIFS_TIME_QUARTER
182 + OFDM_PREAMBLE_TIME_QUARTER
183 + (numSymbols
* OFDM_SYMBOL_TIME_QUARTER
);
184 } else if (ah
->curchan
&&
185 IS_CHAN_HALF_RATE(ah
->curchan
)) {
186 bitsPerSymbol
= (kbps
* OFDM_SYMBOL_TIME_HALF
) / 1000;
187 numBits
= OFDM_PLCP_BITS
+ (frameLen
<< 3);
188 numSymbols
= DIV_ROUND_UP(numBits
, bitsPerSymbol
);
189 txTime
= OFDM_SIFS_TIME_HALF
+
190 OFDM_PREAMBLE_TIME_HALF
191 + (numSymbols
* OFDM_SYMBOL_TIME_HALF
);
193 bitsPerSymbol
= (kbps
* OFDM_SYMBOL_TIME
) / 1000;
194 numBits
= OFDM_PLCP_BITS
+ (frameLen
<< 3);
195 numSymbols
= DIV_ROUND_UP(numBits
, bitsPerSymbol
);
196 txTime
= OFDM_SIFS_TIME
+ OFDM_PREAMBLE_TIME
197 + (numSymbols
* OFDM_SYMBOL_TIME
);
201 ath_print(ath9k_hw_common(ah
), ATH_DBG_FATAL
,
202 "Unknown phy %u (rate ix %u)\n", phy
, rateix
);
209 EXPORT_SYMBOL(ath9k_hw_computetxtime
);
211 void ath9k_hw_get_channel_centers(struct ath_hw
*ah
,
212 struct ath9k_channel
*chan
,
213 struct chan_centers
*centers
)
217 if (!IS_CHAN_HT40(chan
)) {
218 centers
->ctl_center
= centers
->ext_center
=
219 centers
->synth_center
= chan
->channel
;
223 if ((chan
->chanmode
== CHANNEL_A_HT40PLUS
) ||
224 (chan
->chanmode
== CHANNEL_G_HT40PLUS
)) {
225 centers
->synth_center
=
226 chan
->channel
+ HT40_CHANNEL_CENTER_SHIFT
;
229 centers
->synth_center
=
230 chan
->channel
- HT40_CHANNEL_CENTER_SHIFT
;
234 centers
->ctl_center
=
235 centers
->synth_center
- (extoff
* HT40_CHANNEL_CENTER_SHIFT
);
236 /* 25 MHz spacing is supported by hw but not on upper layers */
237 centers
->ext_center
=
238 centers
->synth_center
+ (extoff
* HT40_CHANNEL_CENTER_SHIFT
);
245 static void ath9k_hw_read_revisions(struct ath_hw
*ah
)
249 val
= REG_READ(ah
, AR_SREV
) & AR_SREV_ID
;
252 val
= REG_READ(ah
, AR_SREV
);
253 ah
->hw_version
.macVersion
=
254 (val
& AR_SREV_VERSION2
) >> AR_SREV_TYPE2_S
;
255 ah
->hw_version
.macRev
= MS(val
, AR_SREV_REVISION2
);
256 ah
->is_pciexpress
= (val
& AR_SREV_TYPE2_HOST_MODE
) ? 0 : 1;
258 if (!AR_SREV_9100(ah
))
259 ah
->hw_version
.macVersion
= MS(val
, AR_SREV_VERSION
);
261 ah
->hw_version
.macRev
= val
& AR_SREV_REVISION
;
263 if (ah
->hw_version
.macVersion
== AR_SREV_VERSION_5416_PCIE
)
264 ah
->is_pciexpress
= true;
268 /************************************/
269 /* HW Attach, Detach, Init Routines */
270 /************************************/
272 static void ath9k_hw_disablepcie(struct ath_hw
*ah
)
274 if (AR_SREV_9100(ah
))
277 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x9248fc00);
278 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x24924924);
279 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x28000029);
280 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x57160824);
281 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x25980579);
282 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x00000000);
283 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x1aaabe40);
284 REG_WRITE(ah
, AR_PCIE_SERDES
, 0xbe105554);
285 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x000e1007);
287 REG_WRITE(ah
, AR_PCIE_SERDES2
, 0x00000000);
290 /* This should work for all families including legacy */
291 static bool ath9k_hw_chip_test(struct ath_hw
*ah
)
293 struct ath_common
*common
= ath9k_hw_common(ah
);
294 u32 regAddr
[2] = { AR_STA_ID0
};
296 u32 patternData
[4] = { 0x55555555,
302 if (!AR_SREV_9300_20_OR_LATER(ah
)) {
304 regAddr
[1] = AR_PHY_BASE
+ (8 << 2);
308 for (i
= 0; i
< loop_max
; i
++) {
309 u32 addr
= regAddr
[i
];
312 regHold
[i
] = REG_READ(ah
, addr
);
313 for (j
= 0; j
< 0x100; j
++) {
314 wrData
= (j
<< 16) | j
;
315 REG_WRITE(ah
, addr
, wrData
);
316 rdData
= REG_READ(ah
, addr
);
317 if (rdData
!= wrData
) {
318 ath_print(common
, ATH_DBG_FATAL
,
319 "address test failed "
320 "addr: 0x%08x - wr:0x%08x != "
322 addr
, wrData
, rdData
);
326 for (j
= 0; j
< 4; j
++) {
327 wrData
= patternData
[j
];
328 REG_WRITE(ah
, addr
, wrData
);
329 rdData
= REG_READ(ah
, addr
);
330 if (wrData
!= rdData
) {
331 ath_print(common
, ATH_DBG_FATAL
,
332 "address test failed "
333 "addr: 0x%08x - wr:0x%08x != "
335 addr
, wrData
, rdData
);
339 REG_WRITE(ah
, regAddr
[i
], regHold
[i
]);
346 static void ath9k_hw_init_config(struct ath_hw
*ah
)
350 ah
->config
.dma_beacon_response_time
= 2;
351 ah
->config
.sw_beacon_response_time
= 10;
352 ah
->config
.additional_swba_backoff
= 0;
353 ah
->config
.ack_6mb
= 0x0;
354 ah
->config
.cwm_ignore_extcca
= 0;
355 ah
->config
.pcie_powersave_enable
= 0;
356 ah
->config
.pcie_clock_req
= 0;
357 ah
->config
.pcie_waen
= 0;
358 ah
->config
.analog_shiftreg
= 1;
359 ah
->config
.ofdm_trig_low
= 200;
360 ah
->config
.ofdm_trig_high
= 500;
361 ah
->config
.cck_trig_high
= 200;
362 ah
->config
.cck_trig_low
= 100;
365 * For now ANI is disabled for AR9003, it is still
368 if (!AR_SREV_9300_20_OR_LATER(ah
))
369 ah
->config
.enable_ani
= 1;
371 for (i
= 0; i
< AR_EEPROM_MODAL_SPURS
; i
++) {
372 ah
->config
.spurchans
[i
][0] = AR_NO_SPUR
;
373 ah
->config
.spurchans
[i
][1] = AR_NO_SPUR
;
376 if (ah
->hw_version
.devid
!= AR2427_DEVID_PCIE
)
377 ah
->config
.ht_enable
= 1;
379 ah
->config
.ht_enable
= 0;
381 ah
->config
.rx_intr_mitigation
= true;
384 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
385 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
386 * This means we use it for all AR5416 devices, and the few
387 * minor PCI AR9280 devices out there.
389 * Serialization is required because these devices do not handle
390 * well the case of two concurrent reads/writes due to the latency
391 * involved. During one read/write another read/write can be issued
392 * on another CPU while the previous read/write may still be working
393 * on our hardware, if we hit this case the hardware poops in a loop.
394 * We prevent this by serializing reads and writes.
396 * This issue is not present on PCI-Express devices or pre-AR5416
397 * devices (legacy, 802.11abg).
399 if (num_possible_cpus() > 1)
400 ah
->config
.serialize_regmode
= SER_REG_MODE_AUTO
;
403 static void ath9k_hw_init_defaults(struct ath_hw
*ah
)
405 struct ath_regulatory
*regulatory
= ath9k_hw_regulatory(ah
);
407 regulatory
->country_code
= CTRY_DEFAULT
;
408 regulatory
->power_limit
= MAX_RATE_POWER
;
409 regulatory
->tp_scale
= ATH9K_TP_SCALE_MAX
;
411 ah
->hw_version
.magic
= AR5416_MAGIC
;
412 ah
->hw_version
.subvendorid
= 0;
415 if (!AR_SREV_9100(ah
))
416 ah
->ah_flags
= AH_USE_EEPROM
;
419 ah
->sta_id1_defaults
= AR_STA_ID1_CRPT_MIC_ENABLE
;
420 ah
->beacon_interval
= 100;
421 ah
->enable_32kHz_clock
= DONT_USE_32KHZ
;
422 ah
->slottime
= (u32
) -1;
423 ah
->globaltxtimeout
= (u32
) -1;
424 ah
->power_mode
= ATH9K_PM_UNDEFINED
;
427 static int ath9k_hw_init_macaddr(struct ath_hw
*ah
)
429 struct ath_common
*common
= ath9k_hw_common(ah
);
433 u32 EEP_MAC
[] = { EEP_MAC_LSW
, EEP_MAC_MID
, EEP_MAC_MSW
};
436 for (i
= 0; i
< 3; i
++) {
437 eeval
= ah
->eep_ops
->get_eeprom(ah
, EEP_MAC
[i
]);
439 common
->macaddr
[2 * i
] = eeval
>> 8;
440 common
->macaddr
[2 * i
+ 1] = eeval
& 0xff;
442 if (sum
== 0 || sum
== 0xffff * 3)
443 return -EADDRNOTAVAIL
;
448 static int ath9k_hw_post_init(struct ath_hw
*ah
)
452 if (!AR_SREV_9271(ah
)) {
453 if (!ath9k_hw_chip_test(ah
))
457 if (!AR_SREV_9300_20_OR_LATER(ah
)) {
458 ecode
= ar9002_hw_rf_claim(ah
);
463 ecode
= ath9k_hw_eeprom_init(ah
);
467 ath_print(ath9k_hw_common(ah
), ATH_DBG_CONFIG
,
468 "Eeprom VER: %d, REV: %d\n",
469 ah
->eep_ops
->get_eeprom_ver(ah
),
470 ah
->eep_ops
->get_eeprom_rev(ah
));
472 ecode
= ath9k_hw_rf_alloc_ext_banks(ah
);
474 ath_print(ath9k_hw_common(ah
), ATH_DBG_FATAL
,
475 "Failed allocating banks for "
480 if (!AR_SREV_9100(ah
)) {
481 ath9k_hw_ani_setup(ah
);
482 ath9k_hw_ani_init(ah
);
488 static void ath9k_hw_attach_ops(struct ath_hw
*ah
)
490 if (AR_SREV_9300_20_OR_LATER(ah
))
491 ar9003_hw_attach_ops(ah
);
493 ar9002_hw_attach_ops(ah
);
496 /* Called for all hardware families */
497 static int __ath9k_hw_init(struct ath_hw
*ah
)
499 struct ath_common
*common
= ath9k_hw_common(ah
);
502 if (ah
->hw_version
.devid
== AR5416_AR9100_DEVID
)
503 ah
->hw_version
.macVersion
= AR_SREV_VERSION_9100
;
505 if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_POWER_ON
)) {
506 ath_print(common
, ATH_DBG_FATAL
,
507 "Couldn't reset chip\n");
511 ath9k_hw_init_defaults(ah
);
512 ath9k_hw_init_config(ah
);
514 ath9k_hw_attach_ops(ah
);
516 if (!ath9k_hw_setpower(ah
, ATH9K_PM_AWAKE
)) {
517 ath_print(common
, ATH_DBG_FATAL
, "Couldn't wakeup chip\n");
521 if (ah
->config
.serialize_regmode
== SER_REG_MODE_AUTO
) {
522 if (ah
->hw_version
.macVersion
== AR_SREV_VERSION_5416_PCI
||
523 (AR_SREV_9280(ah
) && !ah
->is_pciexpress
)) {
524 ah
->config
.serialize_regmode
=
527 ah
->config
.serialize_regmode
=
532 ath_print(common
, ATH_DBG_RESET
, "serialize_regmode is %d\n",
533 ah
->config
.serialize_regmode
);
535 if (AR_SREV_9285(ah
) || AR_SREV_9271(ah
))
536 ah
->config
.max_txtrig_level
= MAX_TX_FIFO_THRESHOLD
>> 1;
538 ah
->config
.max_txtrig_level
= MAX_TX_FIFO_THRESHOLD
;
540 if (!ath9k_hw_macversion_supported(ah
)) {
541 ath_print(common
, ATH_DBG_FATAL
,
542 "Mac Chip Rev 0x%02x.%x is not supported by "
543 "this driver\n", ah
->hw_version
.macVersion
,
544 ah
->hw_version
.macRev
);
548 if (AR_SREV_9271(ah
) || AR_SREV_9100(ah
))
549 ah
->is_pciexpress
= false;
551 ah
->hw_version
.phyRev
= REG_READ(ah
, AR_PHY_CHIP_ID
);
552 ath9k_hw_init_cal_settings(ah
);
554 ah
->ani_function
= ATH9K_ANI_ALL
;
555 if (AR_SREV_9280_10_OR_LATER(ah
) && !AR_SREV_9300_20_OR_LATER(ah
))
556 ah
->ani_function
&= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL
;
558 ath9k_hw_init_mode_regs(ah
);
560 if (ah
->is_pciexpress
)
561 ath9k_hw_configpcipowersave(ah
, 0, 0);
563 ath9k_hw_disablepcie(ah
);
565 if (!AR_SREV_9300_20_OR_LATER(ah
))
566 ar9002_hw_cck_chan14_spread(ah
);
568 r
= ath9k_hw_post_init(ah
);
572 ath9k_hw_init_mode_gain_regs(ah
);
573 r
= ath9k_hw_fill_cap_info(ah
);
577 r
= ath9k_hw_init_macaddr(ah
);
579 ath_print(common
, ATH_DBG_FATAL
,
580 "Failed to initialize MAC address\n");
584 if (AR_SREV_9285(ah
) || AR_SREV_9271(ah
))
585 ah
->tx_trig_level
= (AR_FTRIG_256B
>> AR_FTRIG_S
);
587 ah
->tx_trig_level
= (AR_FTRIG_512B
>> AR_FTRIG_S
);
589 if (AR_SREV_9300_20_OR_LATER(ah
))
590 ar9003_hw_set_nf_limits(ah
);
592 ath9k_init_nfcal_hist_buffer(ah
);
594 common
->state
= ATH_HW_INITIALIZED
;
599 int ath9k_hw_init(struct ath_hw
*ah
)
602 struct ath_common
*common
= ath9k_hw_common(ah
);
604 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
605 switch (ah
->hw_version
.devid
) {
606 case AR5416_DEVID_PCI
:
607 case AR5416_DEVID_PCIE
:
608 case AR5416_AR9100_DEVID
:
609 case AR9160_DEVID_PCI
:
610 case AR9280_DEVID_PCI
:
611 case AR9280_DEVID_PCIE
:
612 case AR9285_DEVID_PCIE
:
613 case AR9287_DEVID_PCI
:
614 case AR9287_DEVID_PCIE
:
615 case AR2427_DEVID_PCIE
:
616 case AR9300_DEVID_PCIE
:
619 if (common
->bus_ops
->ath_bus_type
== ATH_USB
)
621 ath_print(common
, ATH_DBG_FATAL
,
622 "Hardware device ID 0x%04x not supported\n",
623 ah
->hw_version
.devid
);
627 ret
= __ath9k_hw_init(ah
);
629 ath_print(common
, ATH_DBG_FATAL
,
630 "Unable to initialize hardware; "
631 "initialization status: %d\n", ret
);
637 EXPORT_SYMBOL(ath9k_hw_init
);
639 static void ath9k_hw_init_qos(struct ath_hw
*ah
)
641 REG_WRITE(ah
, AR_MIC_QOS_CONTROL
, 0x100aa);
642 REG_WRITE(ah
, AR_MIC_QOS_SELECT
, 0x3210);
644 REG_WRITE(ah
, AR_QOS_NO_ACK
,
645 SM(2, AR_QOS_NO_ACK_TWO_BIT
) |
646 SM(5, AR_QOS_NO_ACK_BIT_OFF
) |
647 SM(0, AR_QOS_NO_ACK_BYTE_OFF
));
649 REG_WRITE(ah
, AR_TXOP_X
, AR_TXOP_X_VAL
);
650 REG_WRITE(ah
, AR_TXOP_0_3
, 0xFFFFFFFF);
651 REG_WRITE(ah
, AR_TXOP_4_7
, 0xFFFFFFFF);
652 REG_WRITE(ah
, AR_TXOP_8_11
, 0xFFFFFFFF);
653 REG_WRITE(ah
, AR_TXOP_12_15
, 0xFFFFFFFF);
656 static void ath9k_hw_init_pll(struct ath_hw
*ah
,
657 struct ath9k_channel
*chan
)
659 u32 pll
= ath9k_hw_compute_pll_control(ah
, chan
);
661 REG_WRITE(ah
, AR_RTC_PLL_CONTROL
, pll
);
663 /* Switch the core clock for ar9271 to 117Mhz */
664 if (AR_SREV_9271(ah
)) {
666 REG_WRITE(ah
, 0x50040, 0x304);
669 udelay(RTC_PLL_SETTLE_DELAY
);
671 REG_WRITE(ah
, AR_RTC_SLEEP_CLK
, AR_RTC_FORCE_DERIVED_CLK
);
674 static void ath9k_hw_init_interrupt_masks(struct ath_hw
*ah
,
675 enum nl80211_iftype opmode
)
677 u32 imr_reg
= AR_IMR_TXERR
|
683 if (AR_SREV_9300_20_OR_LATER(ah
)) {
684 imr_reg
|= AR_IMR_RXOK_HP
;
685 if (ah
->config
.rx_intr_mitigation
)
686 imr_reg
|= AR_IMR_RXINTM
| AR_IMR_RXMINTR
;
688 imr_reg
|= AR_IMR_RXOK_LP
;
691 if (ah
->config
.rx_intr_mitigation
)
692 imr_reg
|= AR_IMR_RXINTM
| AR_IMR_RXMINTR
;
694 imr_reg
|= AR_IMR_RXOK
;
697 if (ah
->config
.tx_intr_mitigation
)
698 imr_reg
|= AR_IMR_TXINTM
| AR_IMR_TXMINTR
;
700 imr_reg
|= AR_IMR_TXOK
;
702 if (opmode
== NL80211_IFTYPE_AP
)
703 imr_reg
|= AR_IMR_MIB
;
705 REG_WRITE(ah
, AR_IMR
, imr_reg
);
706 ah
->imrs2_reg
|= AR_IMR_S2_GTT
;
707 REG_WRITE(ah
, AR_IMR_S2
, ah
->imrs2_reg
);
709 if (!AR_SREV_9100(ah
)) {
710 REG_WRITE(ah
, AR_INTR_SYNC_CAUSE
, 0xFFFFFFFF);
711 REG_WRITE(ah
, AR_INTR_SYNC_ENABLE
, AR_INTR_SYNC_DEFAULT
);
712 REG_WRITE(ah
, AR_INTR_SYNC_MASK
, 0);
715 if (AR_SREV_9300_20_OR_LATER(ah
)) {
716 REG_WRITE(ah
, AR_INTR_PRIO_ASYNC_ENABLE
, 0);
717 REG_WRITE(ah
, AR_INTR_PRIO_ASYNC_MASK
, 0);
718 REG_WRITE(ah
, AR_INTR_PRIO_SYNC_ENABLE
, 0);
719 REG_WRITE(ah
, AR_INTR_PRIO_SYNC_MASK
, 0);
723 static void ath9k_hw_setslottime(struct ath_hw
*ah
, u32 us
)
725 u32 val
= ath9k_hw_mac_to_clks(ah
, us
);
726 val
= min(val
, (u32
) 0xFFFF);
727 REG_WRITE(ah
, AR_D_GBL_IFS_SLOT
, val
);
730 static void ath9k_hw_set_ack_timeout(struct ath_hw
*ah
, u32 us
)
732 u32 val
= ath9k_hw_mac_to_clks(ah
, us
);
733 val
= min(val
, (u32
) MS(0xFFFFFFFF, AR_TIME_OUT_ACK
));
734 REG_RMW_FIELD(ah
, AR_TIME_OUT
, AR_TIME_OUT_ACK
, val
);
737 static void ath9k_hw_set_cts_timeout(struct ath_hw
*ah
, u32 us
)
739 u32 val
= ath9k_hw_mac_to_clks(ah
, us
);
740 val
= min(val
, (u32
) MS(0xFFFFFFFF, AR_TIME_OUT_CTS
));
741 REG_RMW_FIELD(ah
, AR_TIME_OUT
, AR_TIME_OUT_CTS
, val
);
744 static bool ath9k_hw_set_global_txtimeout(struct ath_hw
*ah
, u32 tu
)
747 ath_print(ath9k_hw_common(ah
), ATH_DBG_XMIT
,
748 "bad global tx timeout %u\n", tu
);
749 ah
->globaltxtimeout
= (u32
) -1;
752 REG_RMW_FIELD(ah
, AR_GTXTO
, AR_GTXTO_TIMEOUT_LIMIT
, tu
);
753 ah
->globaltxtimeout
= tu
;
758 void ath9k_hw_init_global_settings(struct ath_hw
*ah
)
760 struct ieee80211_conf
*conf
= &ath9k_hw_common(ah
)->hw
->conf
;
765 ath_print(ath9k_hw_common(ah
), ATH_DBG_RESET
, "ah->misc_mode 0x%x\n",
768 if (ah
->misc_mode
!= 0)
769 REG_WRITE(ah
, AR_PCU_MISC
,
770 REG_READ(ah
, AR_PCU_MISC
) | ah
->misc_mode
);
772 if (conf
->channel
&& conf
->channel
->band
== IEEE80211_BAND_5GHZ
)
777 /* As defined by IEEE 802.11-2007 17.3.8.6 */
778 slottime
= ah
->slottime
+ 3 * ah
->coverage_class
;
779 acktimeout
= slottime
+ sifstime
;
782 * Workaround for early ACK timeouts, add an offset to match the
783 * initval's 64us ack timeout value.
784 * This was initially only meant to work around an issue with delayed
785 * BA frames in some implementations, but it has been found to fix ACK
786 * timeout issues in other cases as well.
788 if (conf
->channel
&& conf
->channel
->band
== IEEE80211_BAND_2GHZ
)
789 acktimeout
+= 64 - sifstime
- ah
->slottime
;
791 ath9k_hw_setslottime(ah
, slottime
);
792 ath9k_hw_set_ack_timeout(ah
, acktimeout
);
793 ath9k_hw_set_cts_timeout(ah
, acktimeout
);
794 if (ah
->globaltxtimeout
!= (u32
) -1)
795 ath9k_hw_set_global_txtimeout(ah
, ah
->globaltxtimeout
);
797 EXPORT_SYMBOL(ath9k_hw_init_global_settings
);
799 void ath9k_hw_deinit(struct ath_hw
*ah
)
801 struct ath_common
*common
= ath9k_hw_common(ah
);
803 if (common
->state
< ATH_HW_INITIALIZED
)
806 if (!AR_SREV_9100(ah
))
807 ath9k_hw_ani_disable(ah
);
809 ath9k_hw_setpower(ah
, ATH9K_PM_FULL_SLEEP
);
812 ath9k_hw_rf_free_ext_banks(ah
);
814 EXPORT_SYMBOL(ath9k_hw_deinit
);
820 u32
ath9k_regd_get_ctl(struct ath_regulatory
*reg
, struct ath9k_channel
*chan
)
822 u32 ctl
= ath_regd_get_band_ctl(reg
, chan
->chan
->band
);
826 else if (IS_CHAN_G(chan
))
834 /****************************************/
835 /* Reset and Channel Switching Routines */
836 /****************************************/
838 static inline void ath9k_hw_set_dma(struct ath_hw
*ah
)
840 struct ath_common
*common
= ath9k_hw_common(ah
);
844 * set AHB_MODE not to do cacheline prefetches
846 if (!AR_SREV_9300_20_OR_LATER(ah
)) {
847 regval
= REG_READ(ah
, AR_AHB_MODE
);
848 REG_WRITE(ah
, AR_AHB_MODE
, regval
| AR_AHB_PREFETCH_RD_EN
);
852 * let mac dma reads be in 128 byte chunks
854 regval
= REG_READ(ah
, AR_TXCFG
) & ~AR_TXCFG_DMASZ_MASK
;
855 REG_WRITE(ah
, AR_TXCFG
, regval
| AR_TXCFG_DMASZ_128B
);
858 * Restore TX Trigger Level to its pre-reset value.
859 * The initial value depends on whether aggregation is enabled, and is
860 * adjusted whenever underruns are detected.
862 if (!AR_SREV_9300_20_OR_LATER(ah
))
863 REG_RMW_FIELD(ah
, AR_TXCFG
, AR_FTRIG
, ah
->tx_trig_level
);
866 * let mac dma writes be in 128 byte chunks
868 regval
= REG_READ(ah
, AR_RXCFG
) & ~AR_RXCFG_DMASZ_MASK
;
869 REG_WRITE(ah
, AR_RXCFG
, regval
| AR_RXCFG_DMASZ_128B
);
872 * Setup receive FIFO threshold to hold off TX activities
874 REG_WRITE(ah
, AR_RXFIFO_CFG
, 0x200);
876 if (AR_SREV_9300_20_OR_LATER(ah
)) {
877 REG_RMW_FIELD(ah
, AR_RXBP_THRESH
, AR_RXBP_THRESH_HP
, 0x1);
878 REG_RMW_FIELD(ah
, AR_RXBP_THRESH
, AR_RXBP_THRESH_LP
, 0x1);
880 ath9k_hw_set_rx_bufsize(ah
, common
->rx_bufsize
-
881 ah
->caps
.rx_status_len
);
885 * reduce the number of usable entries in PCU TXBUF to avoid
886 * wrap around issues.
888 if (AR_SREV_9285(ah
)) {
889 /* For AR9285 the number of Fifos are reduced to half.
890 * So set the usable tx buf size also to half to
891 * avoid data/delimiter underruns
893 REG_WRITE(ah
, AR_PCU_TXBUF_CTRL
,
894 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE
);
895 } else if (!AR_SREV_9271(ah
)) {
896 REG_WRITE(ah
, AR_PCU_TXBUF_CTRL
,
897 AR_PCU_TXBUF_CTRL_USABLE_SIZE
);
900 if (AR_SREV_9300_20_OR_LATER(ah
))
901 ath9k_hw_reset_txstatus_ring(ah
);
904 static void ath9k_hw_set_operating_mode(struct ath_hw
*ah
, int opmode
)
908 val
= REG_READ(ah
, AR_STA_ID1
);
909 val
&= ~(AR_STA_ID1_STA_AP
| AR_STA_ID1_ADHOC
);
911 case NL80211_IFTYPE_AP
:
912 REG_WRITE(ah
, AR_STA_ID1
, val
| AR_STA_ID1_STA_AP
913 | AR_STA_ID1_KSRCH_MODE
);
914 REG_CLR_BIT(ah
, AR_CFG
, AR_CFG_AP_ADHOC_INDICATION
);
916 case NL80211_IFTYPE_ADHOC
:
917 case NL80211_IFTYPE_MESH_POINT
:
918 REG_WRITE(ah
, AR_STA_ID1
, val
| AR_STA_ID1_ADHOC
919 | AR_STA_ID1_KSRCH_MODE
);
920 REG_SET_BIT(ah
, AR_CFG
, AR_CFG_AP_ADHOC_INDICATION
);
922 case NL80211_IFTYPE_STATION
:
923 case NL80211_IFTYPE_MONITOR
:
924 REG_WRITE(ah
, AR_STA_ID1
, val
| AR_STA_ID1_KSRCH_MODE
);
929 void ath9k_hw_get_delta_slope_vals(struct ath_hw
*ah
, u32 coef_scaled
,
930 u32
*coef_mantissa
, u32
*coef_exponent
)
932 u32 coef_exp
, coef_man
;
934 for (coef_exp
= 31; coef_exp
> 0; coef_exp
--)
935 if ((coef_scaled
>> coef_exp
) & 0x1)
938 coef_exp
= 14 - (coef_exp
- COEF_SCALE_S
);
940 coef_man
= coef_scaled
+ (1 << (COEF_SCALE_S
- coef_exp
- 1));
942 *coef_mantissa
= coef_man
>> (COEF_SCALE_S
- coef_exp
);
943 *coef_exponent
= coef_exp
- 16;
946 static bool ath9k_hw_set_reset(struct ath_hw
*ah
, int type
)
951 if (AR_SREV_9100(ah
)) {
952 u32 val
= REG_READ(ah
, AR_RTC_DERIVED_CLK
);
953 val
&= ~AR_RTC_DERIVED_CLK_PERIOD
;
954 val
|= SM(1, AR_RTC_DERIVED_CLK_PERIOD
);
955 REG_WRITE(ah
, AR_RTC_DERIVED_CLK
, val
);
956 (void)REG_READ(ah
, AR_RTC_DERIVED_CLK
);
959 REG_WRITE(ah
, AR_RTC_FORCE_WAKE
, AR_RTC_FORCE_WAKE_EN
|
960 AR_RTC_FORCE_WAKE_ON_INT
);
962 if (AR_SREV_9100(ah
)) {
963 rst_flags
= AR_RTC_RC_MAC_WARM
| AR_RTC_RC_MAC_COLD
|
964 AR_RTC_RC_COLD_RESET
| AR_RTC_RC_WARM_RESET
;
966 tmpReg
= REG_READ(ah
, AR_INTR_SYNC_CAUSE
);
968 (AR_INTR_SYNC_LOCAL_TIMEOUT
|
969 AR_INTR_SYNC_RADM_CPL_TIMEOUT
)) {
971 REG_WRITE(ah
, AR_INTR_SYNC_ENABLE
, 0);
974 if (!AR_SREV_9300_20_OR_LATER(ah
))
976 REG_WRITE(ah
, AR_RC
, val
);
978 } else if (!AR_SREV_9300_20_OR_LATER(ah
))
979 REG_WRITE(ah
, AR_RC
, AR_RC_AHB
);
981 rst_flags
= AR_RTC_RC_MAC_WARM
;
982 if (type
== ATH9K_RESET_COLD
)
983 rst_flags
|= AR_RTC_RC_MAC_COLD
;
986 REG_WRITE(ah
, AR_RTC_RC
, rst_flags
);
989 REG_WRITE(ah
, AR_RTC_RC
, 0);
990 if (!ath9k_hw_wait(ah
, AR_RTC_RC
, AR_RTC_RC_M
, 0, AH_WAIT_TIMEOUT
)) {
991 ath_print(ath9k_hw_common(ah
), ATH_DBG_RESET
,
992 "RTC stuck in MAC reset\n");
996 if (!AR_SREV_9100(ah
))
997 REG_WRITE(ah
, AR_RC
, 0);
999 if (AR_SREV_9100(ah
))
1005 static bool ath9k_hw_set_reset_power_on(struct ath_hw
*ah
)
1007 REG_WRITE(ah
, AR_RTC_FORCE_WAKE
, AR_RTC_FORCE_WAKE_EN
|
1008 AR_RTC_FORCE_WAKE_ON_INT
);
1010 if (!AR_SREV_9100(ah
) && !AR_SREV_9300_20_OR_LATER(ah
))
1011 REG_WRITE(ah
, AR_RC
, AR_RC_AHB
);
1013 REG_WRITE(ah
, AR_RTC_RESET
, 0);
1015 if (!AR_SREV_9300_20_OR_LATER(ah
))
1018 if (!AR_SREV_9100(ah
) && !AR_SREV_9300_20_OR_LATER(ah
))
1019 REG_WRITE(ah
, AR_RC
, 0);
1021 REG_WRITE(ah
, AR_RTC_RESET
, 1);
1023 if (!ath9k_hw_wait(ah
,
1028 ath_print(ath9k_hw_common(ah
), ATH_DBG_RESET
,
1029 "RTC not waking up\n");
1033 ath9k_hw_read_revisions(ah
);
1035 return ath9k_hw_set_reset(ah
, ATH9K_RESET_WARM
);
1038 static bool ath9k_hw_set_reset_reg(struct ath_hw
*ah
, u32 type
)
1040 REG_WRITE(ah
, AR_RTC_FORCE_WAKE
,
1041 AR_RTC_FORCE_WAKE_EN
| AR_RTC_FORCE_WAKE_ON_INT
);
1044 case ATH9K_RESET_POWER_ON
:
1045 return ath9k_hw_set_reset_power_on(ah
);
1046 case ATH9K_RESET_WARM
:
1047 case ATH9K_RESET_COLD
:
1048 return ath9k_hw_set_reset(ah
, type
);
1054 static bool ath9k_hw_chip_reset(struct ath_hw
*ah
,
1055 struct ath9k_channel
*chan
)
1057 if (AR_SREV_9280(ah
) && ah
->eep_ops
->get_eeprom(ah
, EEP_OL_PWRCTRL
)) {
1058 if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_POWER_ON
))
1060 } else if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_WARM
))
1063 if (!ath9k_hw_setpower(ah
, ATH9K_PM_AWAKE
))
1066 ah
->chip_fullsleep
= false;
1067 ath9k_hw_init_pll(ah
, chan
);
1068 ath9k_hw_set_rfmode(ah
, chan
);
1073 static bool ath9k_hw_channel_change(struct ath_hw
*ah
,
1074 struct ath9k_channel
*chan
)
1076 struct ath_regulatory
*regulatory
= ath9k_hw_regulatory(ah
);
1077 struct ath_common
*common
= ath9k_hw_common(ah
);
1078 struct ieee80211_channel
*channel
= chan
->chan
;
1082 for (qnum
= 0; qnum
< AR_NUM_QCU
; qnum
++) {
1083 if (ath9k_hw_numtxpending(ah
, qnum
)) {
1084 ath_print(common
, ATH_DBG_QUEUE
,
1085 "Transmit frames pending on "
1086 "queue %d\n", qnum
);
1091 if (!ath9k_hw_rfbus_req(ah
)) {
1092 ath_print(common
, ATH_DBG_FATAL
,
1093 "Could not kill baseband RX\n");
1097 ath9k_hw_set_channel_regs(ah
, chan
);
1099 r
= ath9k_hw_rf_set_freq(ah
, chan
);
1101 ath_print(common
, ATH_DBG_FATAL
,
1102 "Failed to set channel\n");
1106 ah
->eep_ops
->set_txpower(ah
, chan
,
1107 ath9k_regd_get_ctl(regulatory
, chan
),
1108 channel
->max_antenna_gain
* 2,
1109 channel
->max_power
* 2,
1110 min((u32
) MAX_RATE_POWER
,
1111 (u32
) regulatory
->power_limit
));
1113 ath9k_hw_rfbus_done(ah
);
1115 if (IS_CHAN_OFDM(chan
) || IS_CHAN_HT(chan
))
1116 ath9k_hw_set_delta_slope(ah
, chan
);
1118 ath9k_hw_spur_mitigate_freq(ah
, chan
);
1120 if (!chan
->oneTimeCalsDone
)
1121 chan
->oneTimeCalsDone
= true;
1126 int ath9k_hw_reset(struct ath_hw
*ah
, struct ath9k_channel
*chan
,
1127 bool bChannelChange
)
1129 struct ath_common
*common
= ath9k_hw_common(ah
);
1131 struct ath9k_channel
*curchan
= ah
->curchan
;
1137 ah
->txchainmask
= common
->tx_chainmask
;
1138 ah
->rxchainmask
= common
->rx_chainmask
;
1140 if (!ah
->chip_fullsleep
) {
1141 ath9k_hw_abortpcurecv(ah
);
1142 if (!ath9k_hw_stopdmarecv(ah
))
1143 ath_print(common
, ATH_DBG_XMIT
,
1144 "Failed to stop receive dma\n");
1147 if (!ath9k_hw_setpower(ah
, ATH9K_PM_AWAKE
))
1150 if (curchan
&& !ah
->chip_fullsleep
)
1151 ath9k_hw_getnf(ah
, curchan
);
1153 if (bChannelChange
&&
1154 (ah
->chip_fullsleep
!= true) &&
1155 (ah
->curchan
!= NULL
) &&
1156 (chan
->channel
!= ah
->curchan
->channel
) &&
1157 ((chan
->channelFlags
& CHANNEL_ALL
) ==
1158 (ah
->curchan
->channelFlags
& CHANNEL_ALL
)) &&
1159 !(AR_SREV_9280(ah
) || IS_CHAN_A_5MHZ_SPACED(chan
) ||
1160 IS_CHAN_A_5MHZ_SPACED(ah
->curchan
))) {
1162 if (ath9k_hw_channel_change(ah
, chan
)) {
1163 ath9k_hw_loadnf(ah
, ah
->curchan
);
1164 ath9k_hw_start_nfcal(ah
);
1169 saveDefAntenna
= REG_READ(ah
, AR_DEF_ANTENNA
);
1170 if (saveDefAntenna
== 0)
1173 macStaId1
= REG_READ(ah
, AR_STA_ID1
) & AR_STA_ID1_BASE_RATE_11B
;
1175 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1176 if (AR_SREV_9280(ah
) && ah
->eep_ops
->get_eeprom(ah
, EEP_OL_PWRCTRL
))
1177 tsf
= ath9k_hw_gettsf64(ah
);
1179 saveLedState
= REG_READ(ah
, AR_CFG_LED
) &
1180 (AR_CFG_LED_ASSOC_CTL
| AR_CFG_LED_MODE_SEL
|
1181 AR_CFG_LED_BLINK_THRESH_SEL
| AR_CFG_LED_BLINK_SLOW
);
1183 ath9k_hw_mark_phy_inactive(ah
);
1185 /* Only required on the first reset */
1186 if (AR_SREV_9271(ah
) && ah
->htc_reset_init
) {
1188 AR9271_RESET_POWER_DOWN_CONTROL
,
1189 AR9271_RADIO_RF_RST
);
1193 if (!ath9k_hw_chip_reset(ah
, chan
)) {
1194 ath_print(common
, ATH_DBG_FATAL
, "Chip reset failed\n");
1198 /* Only required on the first reset */
1199 if (AR_SREV_9271(ah
) && ah
->htc_reset_init
) {
1200 ah
->htc_reset_init
= false;
1202 AR9271_RESET_POWER_DOWN_CONTROL
,
1203 AR9271_GATE_MAC_CTL
);
1208 if (tsf
&& AR_SREV_9280(ah
) && ah
->eep_ops
->get_eeprom(ah
, EEP_OL_PWRCTRL
))
1209 ath9k_hw_settsf64(ah
, tsf
);
1211 if (AR_SREV_9280_10_OR_LATER(ah
))
1212 REG_SET_BIT(ah
, AR_GPIO_INPUT_EN_VAL
, AR_GPIO_JTAG_DISABLE
);
1214 r
= ath9k_hw_process_ini(ah
, chan
);
1218 /* Setup MFP options for CCMP */
1219 if (AR_SREV_9280_20_OR_LATER(ah
)) {
1220 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1221 * frames when constructing CCMP AAD. */
1222 REG_RMW_FIELD(ah
, AR_AES_MUTE_MASK1
, AR_AES_MUTE_MASK1_FC_MGMT
,
1224 ah
->sw_mgmt_crypto
= false;
1225 } else if (AR_SREV_9160_10_OR_LATER(ah
)) {
1226 /* Disable hardware crypto for management frames */
1227 REG_CLR_BIT(ah
, AR_PCU_MISC_MODE2
,
1228 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE
);
1229 REG_SET_BIT(ah
, AR_PCU_MISC_MODE2
,
1230 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT
);
1231 ah
->sw_mgmt_crypto
= true;
1233 ah
->sw_mgmt_crypto
= true;
1235 if (IS_CHAN_OFDM(chan
) || IS_CHAN_HT(chan
))
1236 ath9k_hw_set_delta_slope(ah
, chan
);
1238 ath9k_hw_spur_mitigate_freq(ah
, chan
);
1239 ah
->eep_ops
->set_board_values(ah
, chan
);
1241 ath9k_hw_set_operating_mode(ah
, ah
->opmode
);
1243 REG_WRITE(ah
, AR_STA_ID0
, get_unaligned_le32(common
->macaddr
));
1244 REG_WRITE(ah
, AR_STA_ID1
, get_unaligned_le16(common
->macaddr
+ 4)
1246 | AR_STA_ID1_RTS_USE_DEF
1248 ack_6mb
? AR_STA_ID1_ACKCTS_6MB
: 0)
1249 | ah
->sta_id1_defaults
);
1250 ath_hw_setbssidmask(common
);
1251 REG_WRITE(ah
, AR_DEF_ANTENNA
, saveDefAntenna
);
1252 ath9k_hw_write_associd(ah
);
1253 REG_WRITE(ah
, AR_ISR
, ~0);
1254 REG_WRITE(ah
, AR_RSSI_THR
, INIT_RSSI_THR
);
1256 r
= ath9k_hw_rf_set_freq(ah
, chan
);
1260 for (i
= 0; i
< AR_NUM_DCU
; i
++)
1261 REG_WRITE(ah
, AR_DQCUMASK(i
), 1 << i
);
1264 for (i
= 0; i
< ah
->caps
.total_queues
; i
++)
1265 ath9k_hw_resettxqueue(ah
, i
);
1267 ath9k_hw_init_interrupt_masks(ah
, ah
->opmode
);
1268 ath9k_hw_init_qos(ah
);
1270 if (ah
->caps
.hw_caps
& ATH9K_HW_CAP_RFSILENT
)
1271 ath9k_enable_rfkill(ah
);
1273 ath9k_hw_init_global_settings(ah
);
1275 if (!AR_SREV_9300_20_OR_LATER(ah
)) {
1276 ar9002_hw_enable_async_fifo(ah
);
1277 ar9002_hw_enable_wep_aggregation(ah
);
1280 REG_WRITE(ah
, AR_STA_ID1
,
1281 REG_READ(ah
, AR_STA_ID1
) | AR_STA_ID1_PRESERVE_SEQNUM
);
1283 ath9k_hw_set_dma(ah
);
1285 REG_WRITE(ah
, AR_OBS
, 8);
1287 if (ah
->config
.rx_intr_mitigation
) {
1288 REG_RMW_FIELD(ah
, AR_RIMT
, AR_RIMT_LAST
, 500);
1289 REG_RMW_FIELD(ah
, AR_RIMT
, AR_RIMT_FIRST
, 2000);
1292 if (ah
->config
.tx_intr_mitigation
) {
1293 REG_RMW_FIELD(ah
, AR_TIMT
, AR_TIMT_LAST
, 300);
1294 REG_RMW_FIELD(ah
, AR_TIMT
, AR_TIMT_FIRST
, 750);
1297 ath9k_hw_init_bb(ah
, chan
);
1299 if (!ath9k_hw_init_cal(ah
, chan
))
1302 ath9k_hw_restore_chainmask(ah
);
1303 REG_WRITE(ah
, AR_CFG_LED
, saveLedState
| AR_CFG_SCLK_32KHZ
);
1306 * For big endian systems turn on swapping for descriptors
1308 if (AR_SREV_9100(ah
)) {
1310 mask
= REG_READ(ah
, AR_CFG
);
1311 if (mask
& (AR_CFG_SWRB
| AR_CFG_SWTB
| AR_CFG_SWRG
)) {
1312 ath_print(common
, ATH_DBG_RESET
,
1313 "CFG Byte Swap Set 0x%x\n", mask
);
1316 INIT_CONFIG_STATUS
| AR_CFG_SWRB
| AR_CFG_SWTB
;
1317 REG_WRITE(ah
, AR_CFG
, mask
);
1318 ath_print(common
, ATH_DBG_RESET
,
1319 "Setting CFG 0x%x\n", REG_READ(ah
, AR_CFG
));
1322 /* Configure AR9271 target WLAN */
1323 if (AR_SREV_9271(ah
))
1324 REG_WRITE(ah
, AR_CFG
, AR_CFG_SWRB
| AR_CFG_SWTB
);
1327 REG_WRITE(ah
, AR_CFG
, AR_CFG_SWTD
| AR_CFG_SWRD
);
1331 if (ah
->btcoex_hw
.enabled
)
1332 ath9k_hw_btcoex_enable(ah
);
1334 if (AR_SREV_9300_20_OR_LATER(ah
)) {
1335 ath9k_hw_loadnf(ah
, curchan
);
1336 ath9k_hw_start_nfcal(ah
);
1341 EXPORT_SYMBOL(ath9k_hw_reset
);
1343 /************************/
1344 /* Key Cache Management */
1345 /************************/
1347 bool ath9k_hw_keyreset(struct ath_hw
*ah
, u16 entry
)
1351 if (entry
>= ah
->caps
.keycache_size
) {
1352 ath_print(ath9k_hw_common(ah
), ATH_DBG_FATAL
,
1353 "keychache entry %u out of range\n", entry
);
1357 keyType
= REG_READ(ah
, AR_KEYTABLE_TYPE(entry
));
1359 REG_WRITE(ah
, AR_KEYTABLE_KEY0(entry
), 0);
1360 REG_WRITE(ah
, AR_KEYTABLE_KEY1(entry
), 0);
1361 REG_WRITE(ah
, AR_KEYTABLE_KEY2(entry
), 0);
1362 REG_WRITE(ah
, AR_KEYTABLE_KEY3(entry
), 0);
1363 REG_WRITE(ah
, AR_KEYTABLE_KEY4(entry
), 0);
1364 REG_WRITE(ah
, AR_KEYTABLE_TYPE(entry
), AR_KEYTABLE_TYPE_CLR
);
1365 REG_WRITE(ah
, AR_KEYTABLE_MAC0(entry
), 0);
1366 REG_WRITE(ah
, AR_KEYTABLE_MAC1(entry
), 0);
1368 if (keyType
== AR_KEYTABLE_TYPE_TKIP
&& ATH9K_IS_MIC_ENABLED(ah
)) {
1369 u16 micentry
= entry
+ 64;
1371 REG_WRITE(ah
, AR_KEYTABLE_KEY0(micentry
), 0);
1372 REG_WRITE(ah
, AR_KEYTABLE_KEY1(micentry
), 0);
1373 REG_WRITE(ah
, AR_KEYTABLE_KEY2(micentry
), 0);
1374 REG_WRITE(ah
, AR_KEYTABLE_KEY3(micentry
), 0);
1380 EXPORT_SYMBOL(ath9k_hw_keyreset
);
1382 bool ath9k_hw_keysetmac(struct ath_hw
*ah
, u16 entry
, const u8
*mac
)
1386 if (entry
>= ah
->caps
.keycache_size
) {
1387 ath_print(ath9k_hw_common(ah
), ATH_DBG_FATAL
,
1388 "keychache entry %u out of range\n", entry
);
1393 macHi
= (mac
[5] << 8) | mac
[4];
1394 macLo
= (mac
[3] << 24) |
1399 macLo
|= (macHi
& 1) << 31;
1404 REG_WRITE(ah
, AR_KEYTABLE_MAC0(entry
), macLo
);
1405 REG_WRITE(ah
, AR_KEYTABLE_MAC1(entry
), macHi
| AR_KEYTABLE_VALID
);
1409 EXPORT_SYMBOL(ath9k_hw_keysetmac
);
1411 bool ath9k_hw_set_keycache_entry(struct ath_hw
*ah
, u16 entry
,
1412 const struct ath9k_keyval
*k
,
1415 const struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
1416 struct ath_common
*common
= ath9k_hw_common(ah
);
1417 u32 key0
, key1
, key2
, key3
, key4
;
1420 if (entry
>= pCap
->keycache_size
) {
1421 ath_print(common
, ATH_DBG_FATAL
,
1422 "keycache entry %u out of range\n", entry
);
1426 switch (k
->kv_type
) {
1427 case ATH9K_CIPHER_AES_OCB
:
1428 keyType
= AR_KEYTABLE_TYPE_AES
;
1430 case ATH9K_CIPHER_AES_CCM
:
1431 if (!(pCap
->hw_caps
& ATH9K_HW_CAP_CIPHER_AESCCM
)) {
1432 ath_print(common
, ATH_DBG_ANY
,
1433 "AES-CCM not supported by mac rev 0x%x\n",
1434 ah
->hw_version
.macRev
);
1437 keyType
= AR_KEYTABLE_TYPE_CCM
;
1439 case ATH9K_CIPHER_TKIP
:
1440 keyType
= AR_KEYTABLE_TYPE_TKIP
;
1441 if (ATH9K_IS_MIC_ENABLED(ah
)
1442 && entry
+ 64 >= pCap
->keycache_size
) {
1443 ath_print(common
, ATH_DBG_ANY
,
1444 "entry %u inappropriate for TKIP\n", entry
);
1448 case ATH9K_CIPHER_WEP
:
1449 if (k
->kv_len
< WLAN_KEY_LEN_WEP40
) {
1450 ath_print(common
, ATH_DBG_ANY
,
1451 "WEP key length %u too small\n", k
->kv_len
);
1454 if (k
->kv_len
<= WLAN_KEY_LEN_WEP40
)
1455 keyType
= AR_KEYTABLE_TYPE_40
;
1456 else if (k
->kv_len
<= WLAN_KEY_LEN_WEP104
)
1457 keyType
= AR_KEYTABLE_TYPE_104
;
1459 keyType
= AR_KEYTABLE_TYPE_128
;
1461 case ATH9K_CIPHER_CLR
:
1462 keyType
= AR_KEYTABLE_TYPE_CLR
;
1465 ath_print(common
, ATH_DBG_FATAL
,
1466 "cipher %u not supported\n", k
->kv_type
);
1470 key0
= get_unaligned_le32(k
->kv_val
+ 0);
1471 key1
= get_unaligned_le16(k
->kv_val
+ 4);
1472 key2
= get_unaligned_le32(k
->kv_val
+ 6);
1473 key3
= get_unaligned_le16(k
->kv_val
+ 10);
1474 key4
= get_unaligned_le32(k
->kv_val
+ 12);
1475 if (k
->kv_len
<= WLAN_KEY_LEN_WEP104
)
1479 * Note: Key cache registers access special memory area that requires
1480 * two 32-bit writes to actually update the values in the internal
1481 * memory. Consequently, the exact order and pairs used here must be
1485 if (keyType
== AR_KEYTABLE_TYPE_TKIP
&& ATH9K_IS_MIC_ENABLED(ah
)) {
1486 u16 micentry
= entry
+ 64;
1489 * Write inverted key[47:0] first to avoid Michael MIC errors
1490 * on frames that could be sent or received at the same time.
1491 * The correct key will be written in the end once everything
1494 REG_WRITE(ah
, AR_KEYTABLE_KEY0(entry
), ~key0
);
1495 REG_WRITE(ah
, AR_KEYTABLE_KEY1(entry
), ~key1
);
1497 /* Write key[95:48] */
1498 REG_WRITE(ah
, AR_KEYTABLE_KEY2(entry
), key2
);
1499 REG_WRITE(ah
, AR_KEYTABLE_KEY3(entry
), key3
);
1501 /* Write key[127:96] and key type */
1502 REG_WRITE(ah
, AR_KEYTABLE_KEY4(entry
), key4
);
1503 REG_WRITE(ah
, AR_KEYTABLE_TYPE(entry
), keyType
);
1505 /* Write MAC address for the entry */
1506 (void) ath9k_hw_keysetmac(ah
, entry
, mac
);
1508 if (ah
->misc_mode
& AR_PCU_MIC_NEW_LOC_ENA
) {
1510 * TKIP uses two key cache entries:
1511 * Michael MIC TX/RX keys in the same key cache entry
1512 * (idx = main index + 64):
1513 * key0 [31:0] = RX key [31:0]
1514 * key1 [15:0] = TX key [31:16]
1515 * key1 [31:16] = reserved
1516 * key2 [31:0] = RX key [63:32]
1517 * key3 [15:0] = TX key [15:0]
1518 * key3 [31:16] = reserved
1519 * key4 [31:0] = TX key [63:32]
1521 u32 mic0
, mic1
, mic2
, mic3
, mic4
;
1523 mic0
= get_unaligned_le32(k
->kv_mic
+ 0);
1524 mic2
= get_unaligned_le32(k
->kv_mic
+ 4);
1525 mic1
= get_unaligned_le16(k
->kv_txmic
+ 2) & 0xffff;
1526 mic3
= get_unaligned_le16(k
->kv_txmic
+ 0) & 0xffff;
1527 mic4
= get_unaligned_le32(k
->kv_txmic
+ 4);
1529 /* Write RX[31:0] and TX[31:16] */
1530 REG_WRITE(ah
, AR_KEYTABLE_KEY0(micentry
), mic0
);
1531 REG_WRITE(ah
, AR_KEYTABLE_KEY1(micentry
), mic1
);
1533 /* Write RX[63:32] and TX[15:0] */
1534 REG_WRITE(ah
, AR_KEYTABLE_KEY2(micentry
), mic2
);
1535 REG_WRITE(ah
, AR_KEYTABLE_KEY3(micentry
), mic3
);
1537 /* Write TX[63:32] and keyType(reserved) */
1538 REG_WRITE(ah
, AR_KEYTABLE_KEY4(micentry
), mic4
);
1539 REG_WRITE(ah
, AR_KEYTABLE_TYPE(micentry
),
1540 AR_KEYTABLE_TYPE_CLR
);
1544 * TKIP uses four key cache entries (two for group
1546 * Michael MIC TX/RX keys are in different key cache
1547 * entries (idx = main index + 64 for TX and
1548 * main index + 32 + 96 for RX):
1549 * key0 [31:0] = TX/RX MIC key [31:0]
1550 * key1 [31:0] = reserved
1551 * key2 [31:0] = TX/RX MIC key [63:32]
1552 * key3 [31:0] = reserved
1553 * key4 [31:0] = reserved
1555 * Upper layer code will call this function separately
1556 * for TX and RX keys when these registers offsets are
1561 mic0
= get_unaligned_le32(k
->kv_mic
+ 0);
1562 mic2
= get_unaligned_le32(k
->kv_mic
+ 4);
1564 /* Write MIC key[31:0] */
1565 REG_WRITE(ah
, AR_KEYTABLE_KEY0(micentry
), mic0
);
1566 REG_WRITE(ah
, AR_KEYTABLE_KEY1(micentry
), 0);
1568 /* Write MIC key[63:32] */
1569 REG_WRITE(ah
, AR_KEYTABLE_KEY2(micentry
), mic2
);
1570 REG_WRITE(ah
, AR_KEYTABLE_KEY3(micentry
), 0);
1572 /* Write TX[63:32] and keyType(reserved) */
1573 REG_WRITE(ah
, AR_KEYTABLE_KEY4(micentry
), 0);
1574 REG_WRITE(ah
, AR_KEYTABLE_TYPE(micentry
),
1575 AR_KEYTABLE_TYPE_CLR
);
1578 /* MAC address registers are reserved for the MIC entry */
1579 REG_WRITE(ah
, AR_KEYTABLE_MAC0(micentry
), 0);
1580 REG_WRITE(ah
, AR_KEYTABLE_MAC1(micentry
), 0);
1583 * Write the correct (un-inverted) key[47:0] last to enable
1584 * TKIP now that all other registers are set with correct
1587 REG_WRITE(ah
, AR_KEYTABLE_KEY0(entry
), key0
);
1588 REG_WRITE(ah
, AR_KEYTABLE_KEY1(entry
), key1
);
1590 /* Write key[47:0] */
1591 REG_WRITE(ah
, AR_KEYTABLE_KEY0(entry
), key0
);
1592 REG_WRITE(ah
, AR_KEYTABLE_KEY1(entry
), key1
);
1594 /* Write key[95:48] */
1595 REG_WRITE(ah
, AR_KEYTABLE_KEY2(entry
), key2
);
1596 REG_WRITE(ah
, AR_KEYTABLE_KEY3(entry
), key3
);
1598 /* Write key[127:96] and key type */
1599 REG_WRITE(ah
, AR_KEYTABLE_KEY4(entry
), key4
);
1600 REG_WRITE(ah
, AR_KEYTABLE_TYPE(entry
), keyType
);
1602 /* Write MAC address for the entry */
1603 (void) ath9k_hw_keysetmac(ah
, entry
, mac
);
1608 EXPORT_SYMBOL(ath9k_hw_set_keycache_entry
);
1610 bool ath9k_hw_keyisvalid(struct ath_hw
*ah
, u16 entry
)
1612 if (entry
< ah
->caps
.keycache_size
) {
1613 u32 val
= REG_READ(ah
, AR_KEYTABLE_MAC1(entry
));
1614 if (val
& AR_KEYTABLE_VALID
)
1619 EXPORT_SYMBOL(ath9k_hw_keyisvalid
);
1621 /******************************/
1622 /* Power Management (Chipset) */
1623 /******************************/
1626 * Notify Power Mgt is disabled in self-generated frames.
1627 * If requested, force chip to sleep.
1629 static void ath9k_set_power_sleep(struct ath_hw
*ah
, int setChip
)
1631 REG_SET_BIT(ah
, AR_STA_ID1
, AR_STA_ID1_PWR_SAV
);
1634 * Clear the RTC force wake bit to allow the
1635 * mac to go to sleep.
1637 REG_CLR_BIT(ah
, AR_RTC_FORCE_WAKE
,
1638 AR_RTC_FORCE_WAKE_EN
);
1639 if (!AR_SREV_9100(ah
) && !AR_SREV_9300_20_OR_LATER(ah
))
1640 REG_WRITE(ah
, AR_RC
, AR_RC_AHB
| AR_RC_HOSTIF
);
1642 /* Shutdown chip. Active low */
1643 if (!AR_SREV_5416(ah
) && !AR_SREV_9271(ah
))
1644 REG_CLR_BIT(ah
, (AR_RTC_RESET
),
1650 * Notify Power Management is enabled in self-generating
1651 * frames. If request, set power mode of chip to
1652 * auto/normal. Duration in units of 128us (1/8 TU).
1654 static void ath9k_set_power_network_sleep(struct ath_hw
*ah
, int setChip
)
1656 REG_SET_BIT(ah
, AR_STA_ID1
, AR_STA_ID1_PWR_SAV
);
1658 struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
1660 if (!(pCap
->hw_caps
& ATH9K_HW_CAP_AUTOSLEEP
)) {
1661 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1662 REG_WRITE(ah
, AR_RTC_FORCE_WAKE
,
1663 AR_RTC_FORCE_WAKE_ON_INT
);
1666 * Clear the RTC force wake bit to allow the
1667 * mac to go to sleep.
1669 REG_CLR_BIT(ah
, AR_RTC_FORCE_WAKE
,
1670 AR_RTC_FORCE_WAKE_EN
);
1675 static bool ath9k_hw_set_power_awake(struct ath_hw
*ah
, int setChip
)
1681 if ((REG_READ(ah
, AR_RTC_STATUS
) &
1682 AR_RTC_STATUS_M
) == AR_RTC_STATUS_SHUTDOWN
) {
1683 if (ath9k_hw_set_reset_reg(ah
,
1684 ATH9K_RESET_POWER_ON
) != true) {
1687 if (!AR_SREV_9300_20_OR_LATER(ah
))
1688 ath9k_hw_init_pll(ah
, NULL
);
1690 if (AR_SREV_9100(ah
))
1691 REG_SET_BIT(ah
, AR_RTC_RESET
,
1694 REG_SET_BIT(ah
, AR_RTC_FORCE_WAKE
,
1695 AR_RTC_FORCE_WAKE_EN
);
1698 for (i
= POWER_UP_TIME
/ 50; i
> 0; i
--) {
1699 val
= REG_READ(ah
, AR_RTC_STATUS
) & AR_RTC_STATUS_M
;
1700 if (val
== AR_RTC_STATUS_ON
)
1703 REG_SET_BIT(ah
, AR_RTC_FORCE_WAKE
,
1704 AR_RTC_FORCE_WAKE_EN
);
1707 ath_print(ath9k_hw_common(ah
), ATH_DBG_FATAL
,
1708 "Failed to wakeup in %uus\n",
1709 POWER_UP_TIME
/ 20);
1714 REG_CLR_BIT(ah
, AR_STA_ID1
, AR_STA_ID1_PWR_SAV
);
1719 bool ath9k_hw_setpower(struct ath_hw
*ah
, enum ath9k_power_mode mode
)
1721 struct ath_common
*common
= ath9k_hw_common(ah
);
1722 int status
= true, setChip
= true;
1723 static const char *modes
[] = {
1730 if (ah
->power_mode
== mode
)
1733 ath_print(common
, ATH_DBG_RESET
, "%s -> %s\n",
1734 modes
[ah
->power_mode
], modes
[mode
]);
1737 case ATH9K_PM_AWAKE
:
1738 status
= ath9k_hw_set_power_awake(ah
, setChip
);
1740 case ATH9K_PM_FULL_SLEEP
:
1741 ath9k_set_power_sleep(ah
, setChip
);
1742 ah
->chip_fullsleep
= true;
1744 case ATH9K_PM_NETWORK_SLEEP
:
1745 ath9k_set_power_network_sleep(ah
, setChip
);
1748 ath_print(common
, ATH_DBG_FATAL
,
1749 "Unknown power mode %u\n", mode
);
1752 ah
->power_mode
= mode
;
1756 EXPORT_SYMBOL(ath9k_hw_setpower
);
1758 /*******************/
1759 /* Beacon Handling */
1760 /*******************/
1762 void ath9k_hw_beaconinit(struct ath_hw
*ah
, u32 next_beacon
, u32 beacon_period
)
1766 ah
->beacon_interval
= beacon_period
;
1768 switch (ah
->opmode
) {
1769 case NL80211_IFTYPE_STATION
:
1770 case NL80211_IFTYPE_MONITOR
:
1771 REG_WRITE(ah
, AR_NEXT_TBTT_TIMER
, TU_TO_USEC(next_beacon
));
1772 REG_WRITE(ah
, AR_NEXT_DMA_BEACON_ALERT
, 0xffff);
1773 REG_WRITE(ah
, AR_NEXT_SWBA
, 0x7ffff);
1774 flags
|= AR_TBTT_TIMER_EN
;
1776 case NL80211_IFTYPE_ADHOC
:
1777 case NL80211_IFTYPE_MESH_POINT
:
1778 REG_SET_BIT(ah
, AR_TXCFG
,
1779 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY
);
1780 REG_WRITE(ah
, AR_NEXT_NDP_TIMER
,
1781 TU_TO_USEC(next_beacon
+
1782 (ah
->atim_window
? ah
->
1784 flags
|= AR_NDP_TIMER_EN
;
1785 case NL80211_IFTYPE_AP
:
1786 REG_WRITE(ah
, AR_NEXT_TBTT_TIMER
, TU_TO_USEC(next_beacon
));
1787 REG_WRITE(ah
, AR_NEXT_DMA_BEACON_ALERT
,
1788 TU_TO_USEC(next_beacon
-
1790 dma_beacon_response_time
));
1791 REG_WRITE(ah
, AR_NEXT_SWBA
,
1792 TU_TO_USEC(next_beacon
-
1794 sw_beacon_response_time
));
1796 AR_TBTT_TIMER_EN
| AR_DBA_TIMER_EN
| AR_SWBA_TIMER_EN
;
1799 ath_print(ath9k_hw_common(ah
), ATH_DBG_BEACON
,
1800 "%s: unsupported opmode: %d\n",
1801 __func__
, ah
->opmode
);
1806 REG_WRITE(ah
, AR_BEACON_PERIOD
, TU_TO_USEC(beacon_period
));
1807 REG_WRITE(ah
, AR_DMA_BEACON_PERIOD
, TU_TO_USEC(beacon_period
));
1808 REG_WRITE(ah
, AR_SWBA_PERIOD
, TU_TO_USEC(beacon_period
));
1809 REG_WRITE(ah
, AR_NDP_PERIOD
, TU_TO_USEC(beacon_period
));
1811 beacon_period
&= ~ATH9K_BEACON_ENA
;
1812 if (beacon_period
& ATH9K_BEACON_RESET_TSF
) {
1813 ath9k_hw_reset_tsf(ah
);
1816 REG_SET_BIT(ah
, AR_TIMER_MODE
, flags
);
1818 EXPORT_SYMBOL(ath9k_hw_beaconinit
);
1820 void ath9k_hw_set_sta_beacon_timers(struct ath_hw
*ah
,
1821 const struct ath9k_beacon_state
*bs
)
1823 u32 nextTbtt
, beaconintval
, dtimperiod
, beacontimeout
;
1824 struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
1825 struct ath_common
*common
= ath9k_hw_common(ah
);
1827 REG_WRITE(ah
, AR_NEXT_TBTT_TIMER
, TU_TO_USEC(bs
->bs_nexttbtt
));
1829 REG_WRITE(ah
, AR_BEACON_PERIOD
,
1830 TU_TO_USEC(bs
->bs_intval
& ATH9K_BEACON_PERIOD
));
1831 REG_WRITE(ah
, AR_DMA_BEACON_PERIOD
,
1832 TU_TO_USEC(bs
->bs_intval
& ATH9K_BEACON_PERIOD
));
1834 REG_RMW_FIELD(ah
, AR_RSSI_THR
,
1835 AR_RSSI_THR_BM_THR
, bs
->bs_bmissthreshold
);
1837 beaconintval
= bs
->bs_intval
& ATH9K_BEACON_PERIOD
;
1839 if (bs
->bs_sleepduration
> beaconintval
)
1840 beaconintval
= bs
->bs_sleepduration
;
1842 dtimperiod
= bs
->bs_dtimperiod
;
1843 if (bs
->bs_sleepduration
> dtimperiod
)
1844 dtimperiod
= bs
->bs_sleepduration
;
1846 if (beaconintval
== dtimperiod
)
1847 nextTbtt
= bs
->bs_nextdtim
;
1849 nextTbtt
= bs
->bs_nexttbtt
;
1851 ath_print(common
, ATH_DBG_BEACON
, "next DTIM %d\n", bs
->bs_nextdtim
);
1852 ath_print(common
, ATH_DBG_BEACON
, "next beacon %d\n", nextTbtt
);
1853 ath_print(common
, ATH_DBG_BEACON
, "beacon period %d\n", beaconintval
);
1854 ath_print(common
, ATH_DBG_BEACON
, "DTIM period %d\n", dtimperiod
);
1856 REG_WRITE(ah
, AR_NEXT_DTIM
,
1857 TU_TO_USEC(bs
->bs_nextdtim
- SLEEP_SLOP
));
1858 REG_WRITE(ah
, AR_NEXT_TIM
, TU_TO_USEC(nextTbtt
- SLEEP_SLOP
));
1860 REG_WRITE(ah
, AR_SLEEP1
,
1861 SM((CAB_TIMEOUT_VAL
<< 3), AR_SLEEP1_CAB_TIMEOUT
)
1862 | AR_SLEEP1_ASSUME_DTIM
);
1864 if (pCap
->hw_caps
& ATH9K_HW_CAP_AUTOSLEEP
)
1865 beacontimeout
= (BEACON_TIMEOUT_VAL
<< 3);
1867 beacontimeout
= MIN_BEACON_TIMEOUT_VAL
;
1869 REG_WRITE(ah
, AR_SLEEP2
,
1870 SM(beacontimeout
, AR_SLEEP2_BEACON_TIMEOUT
));
1872 REG_WRITE(ah
, AR_TIM_PERIOD
, TU_TO_USEC(beaconintval
));
1873 REG_WRITE(ah
, AR_DTIM_PERIOD
, TU_TO_USEC(dtimperiod
));
1875 REG_SET_BIT(ah
, AR_TIMER_MODE
,
1876 AR_TBTT_TIMER_EN
| AR_TIM_TIMER_EN
|
1879 /* TSF Out of Range Threshold */
1880 REG_WRITE(ah
, AR_TSFOOR_THRESHOLD
, bs
->bs_tsfoor_threshold
);
1882 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers
);
1884 /*******************/
1885 /* HW Capabilities */
1886 /*******************/
1888 int ath9k_hw_fill_cap_info(struct ath_hw
*ah
)
1890 struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
1891 struct ath_regulatory
*regulatory
= ath9k_hw_regulatory(ah
);
1892 struct ath_common
*common
= ath9k_hw_common(ah
);
1893 struct ath_btcoex_hw
*btcoex_hw
= &ah
->btcoex_hw
;
1895 u16 capField
= 0, eeval
;
1897 eeval
= ah
->eep_ops
->get_eeprom(ah
, EEP_REG_0
);
1898 regulatory
->current_rd
= eeval
;
1900 eeval
= ah
->eep_ops
->get_eeprom(ah
, EEP_REG_1
);
1901 if (AR_SREV_9285_10_OR_LATER(ah
))
1902 eeval
|= AR9285_RDEXT_DEFAULT
;
1903 regulatory
->current_rd_ext
= eeval
;
1905 capField
= ah
->eep_ops
->get_eeprom(ah
, EEP_OP_CAP
);
1907 if (ah
->opmode
!= NL80211_IFTYPE_AP
&&
1908 ah
->hw_version
.subvendorid
== AR_SUBVENDOR_ID_NEW_A
) {
1909 if (regulatory
->current_rd
== 0x64 ||
1910 regulatory
->current_rd
== 0x65)
1911 regulatory
->current_rd
+= 5;
1912 else if (regulatory
->current_rd
== 0x41)
1913 regulatory
->current_rd
= 0x43;
1914 ath_print(common
, ATH_DBG_REGULATORY
,
1915 "regdomain mapped to 0x%x\n", regulatory
->current_rd
);
1918 eeval
= ah
->eep_ops
->get_eeprom(ah
, EEP_OP_MODE
);
1919 if ((eeval
& (AR5416_OPFLAGS_11G
| AR5416_OPFLAGS_11A
)) == 0) {
1920 ath_print(common
, ATH_DBG_FATAL
,
1921 "no band has been marked as supported in EEPROM.\n");
1925 bitmap_zero(pCap
->wireless_modes
, ATH9K_MODE_MAX
);
1927 if (eeval
& AR5416_OPFLAGS_11A
) {
1928 set_bit(ATH9K_MODE_11A
, pCap
->wireless_modes
);
1929 if (ah
->config
.ht_enable
) {
1930 if (!(eeval
& AR5416_OPFLAGS_N_5G_HT20
))
1931 set_bit(ATH9K_MODE_11NA_HT20
,
1932 pCap
->wireless_modes
);
1933 if (!(eeval
& AR5416_OPFLAGS_N_5G_HT40
)) {
1934 set_bit(ATH9K_MODE_11NA_HT40PLUS
,
1935 pCap
->wireless_modes
);
1936 set_bit(ATH9K_MODE_11NA_HT40MINUS
,
1937 pCap
->wireless_modes
);
1942 if (eeval
& AR5416_OPFLAGS_11G
) {
1943 set_bit(ATH9K_MODE_11G
, pCap
->wireless_modes
);
1944 if (ah
->config
.ht_enable
) {
1945 if (!(eeval
& AR5416_OPFLAGS_N_2G_HT20
))
1946 set_bit(ATH9K_MODE_11NG_HT20
,
1947 pCap
->wireless_modes
);
1948 if (!(eeval
& AR5416_OPFLAGS_N_2G_HT40
)) {
1949 set_bit(ATH9K_MODE_11NG_HT40PLUS
,
1950 pCap
->wireless_modes
);
1951 set_bit(ATH9K_MODE_11NG_HT40MINUS
,
1952 pCap
->wireless_modes
);
1957 pCap
->tx_chainmask
= ah
->eep_ops
->get_eeprom(ah
, EEP_TX_MASK
);
1959 * For AR9271 we will temporarilly uses the rx chainmax as read from
1962 if ((ah
->hw_version
.devid
== AR5416_DEVID_PCI
) &&
1963 !(eeval
& AR5416_OPFLAGS_11A
) &&
1964 !(AR_SREV_9271(ah
)))
1965 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
1966 pCap
->rx_chainmask
= ath9k_hw_gpio_get(ah
, 0) ? 0x5 : 0x7;
1968 /* Use rx_chainmask from EEPROM. */
1969 pCap
->rx_chainmask
= ah
->eep_ops
->get_eeprom(ah
, EEP_RX_MASK
);
1971 if (!(AR_SREV_9280(ah
) && (ah
->hw_version
.macRev
== 0)))
1972 ah
->misc_mode
|= AR_PCU_MIC_NEW_LOC_ENA
;
1974 pCap
->low_2ghz_chan
= 2312;
1975 pCap
->high_2ghz_chan
= 2732;
1977 pCap
->low_5ghz_chan
= 4920;
1978 pCap
->high_5ghz_chan
= 6100;
1980 pCap
->hw_caps
&= ~ATH9K_HW_CAP_CIPHER_CKIP
;
1981 pCap
->hw_caps
|= ATH9K_HW_CAP_CIPHER_TKIP
;
1982 pCap
->hw_caps
|= ATH9K_HW_CAP_CIPHER_AESCCM
;
1984 pCap
->hw_caps
&= ~ATH9K_HW_CAP_MIC_CKIP
;
1985 pCap
->hw_caps
|= ATH9K_HW_CAP_MIC_TKIP
;
1986 pCap
->hw_caps
|= ATH9K_HW_CAP_MIC_AESCCM
;
1988 if (ah
->config
.ht_enable
)
1989 pCap
->hw_caps
|= ATH9K_HW_CAP_HT
;
1991 pCap
->hw_caps
&= ~ATH9K_HW_CAP_HT
;
1993 pCap
->hw_caps
|= ATH9K_HW_CAP_GTT
;
1994 pCap
->hw_caps
|= ATH9K_HW_CAP_VEOL
;
1995 pCap
->hw_caps
|= ATH9K_HW_CAP_BSSIDMASK
;
1996 pCap
->hw_caps
&= ~ATH9K_HW_CAP_MCAST_KEYSEARCH
;
1998 if (capField
& AR_EEPROM_EEPCAP_MAXQCU
)
1999 pCap
->total_queues
=
2000 MS(capField
, AR_EEPROM_EEPCAP_MAXQCU
);
2002 pCap
->total_queues
= ATH9K_NUM_TX_QUEUES
;
2004 if (capField
& AR_EEPROM_EEPCAP_KC_ENTRIES
)
2005 pCap
->keycache_size
=
2006 1 << MS(capField
, AR_EEPROM_EEPCAP_KC_ENTRIES
);
2008 pCap
->keycache_size
= AR_KEYTABLE_SIZE
;
2010 pCap
->hw_caps
|= ATH9K_HW_CAP_FASTCC
;
2012 if (AR_SREV_9285(ah
) || AR_SREV_9271(ah
))
2013 pCap
->tx_triglevel_max
= MAX_TX_FIFO_THRESHOLD
>> 1;
2015 pCap
->tx_triglevel_max
= MAX_TX_FIFO_THRESHOLD
;
2017 if (AR_SREV_9271(ah
))
2018 pCap
->num_gpio_pins
= AR9271_NUM_GPIO
;
2019 else if (AR_SREV_9285_10_OR_LATER(ah
))
2020 pCap
->num_gpio_pins
= AR9285_NUM_GPIO
;
2021 else if (AR_SREV_9280_10_OR_LATER(ah
))
2022 pCap
->num_gpio_pins
= AR928X_NUM_GPIO
;
2024 pCap
->num_gpio_pins
= AR_NUM_GPIO
;
2026 if (AR_SREV_9160_10_OR_LATER(ah
) || AR_SREV_9100(ah
)) {
2027 pCap
->hw_caps
|= ATH9K_HW_CAP_CST
;
2028 pCap
->rts_aggr_limit
= ATH_AMPDU_LIMIT_MAX
;
2030 pCap
->rts_aggr_limit
= (8 * 1024);
2033 pCap
->hw_caps
|= ATH9K_HW_CAP_ENHANCEDPM
;
2035 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
2036 ah
->rfsilent
= ah
->eep_ops
->get_eeprom(ah
, EEP_RF_SILENT
);
2037 if (ah
->rfsilent
& EEP_RFSILENT_ENABLED
) {
2039 MS(ah
->rfsilent
, EEP_RFSILENT_GPIO_SEL
);
2040 ah
->rfkill_polarity
=
2041 MS(ah
->rfsilent
, EEP_RFSILENT_POLARITY
);
2043 pCap
->hw_caps
|= ATH9K_HW_CAP_RFSILENT
;
2046 if (AR_SREV_9271(ah
))
2047 pCap
->hw_caps
|= ATH9K_HW_CAP_AUTOSLEEP
;
2049 pCap
->hw_caps
&= ~ATH9K_HW_CAP_AUTOSLEEP
;
2051 if (AR_SREV_9280(ah
) || AR_SREV_9285(ah
))
2052 pCap
->hw_caps
&= ~ATH9K_HW_CAP_4KB_SPLITTRANS
;
2054 pCap
->hw_caps
|= ATH9K_HW_CAP_4KB_SPLITTRANS
;
2056 if (regulatory
->current_rd_ext
& (1 << REG_EXT_JAPAN_MIDBAND
)) {
2058 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A
|
2059 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN
|
2060 AR_EEPROM_EEREGCAP_EN_KK_U2
|
2061 AR_EEPROM_EEREGCAP_EN_KK_MIDBAND
;
2064 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A
|
2065 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN
;
2068 /* Advertise midband for AR5416 with FCC midband set in eeprom */
2069 if (regulatory
->current_rd_ext
& (1 << REG_EXT_FCC_MIDBAND
) &&
2071 pCap
->reg_cap
|= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND
;
2073 pCap
->num_antcfg_5ghz
=
2074 ah
->eep_ops
->get_num_ant_config(ah
, ATH9K_HAL_FREQ_BAND_5GHZ
);
2075 pCap
->num_antcfg_2ghz
=
2076 ah
->eep_ops
->get_num_ant_config(ah
, ATH9K_HAL_FREQ_BAND_2GHZ
);
2078 if (AR_SREV_9280_10_OR_LATER(ah
) &&
2079 ath9k_hw_btcoex_supported(ah
)) {
2080 btcoex_hw
->btactive_gpio
= ATH_BTACTIVE_GPIO
;
2081 btcoex_hw
->wlanactive_gpio
= ATH_WLANACTIVE_GPIO
;
2083 if (AR_SREV_9285(ah
)) {
2084 btcoex_hw
->scheme
= ATH_BTCOEX_CFG_3WIRE
;
2085 btcoex_hw
->btpriority_gpio
= ATH_BTPRIORITY_GPIO
;
2087 btcoex_hw
->scheme
= ATH_BTCOEX_CFG_2WIRE
;
2090 btcoex_hw
->scheme
= ATH_BTCOEX_CFG_NONE
;
2093 if (AR_SREV_9300_20_OR_LATER(ah
)) {
2094 pCap
->hw_caps
|= ATH9K_HW_CAP_EDMA
| ATH9K_HW_CAP_LDPC
;
2095 pCap
->rx_hp_qdepth
= ATH9K_HW_RX_HP_QDEPTH
;
2096 pCap
->rx_lp_qdepth
= ATH9K_HW_RX_LP_QDEPTH
;
2097 pCap
->rx_status_len
= sizeof(struct ar9003_rxs
);
2098 pCap
->tx_desc_len
= sizeof(struct ar9003_txc
);
2099 pCap
->txs_len
= sizeof(struct ar9003_txs
);
2101 pCap
->tx_desc_len
= sizeof(struct ath_desc
);
2104 if (AR_SREV_9300_20_OR_LATER(ah
))
2105 pCap
->hw_caps
|= ATH9K_HW_CAP_RAC_SUPPORTED
;
2110 bool ath9k_hw_getcapability(struct ath_hw
*ah
, enum ath9k_capability_type type
,
2111 u32 capability
, u32
*result
)
2113 struct ath_regulatory
*regulatory
= ath9k_hw_regulatory(ah
);
2115 case ATH9K_CAP_CIPHER
:
2116 switch (capability
) {
2117 case ATH9K_CIPHER_AES_CCM
:
2118 case ATH9K_CIPHER_AES_OCB
:
2119 case ATH9K_CIPHER_TKIP
:
2120 case ATH9K_CIPHER_WEP
:
2121 case ATH9K_CIPHER_MIC
:
2122 case ATH9K_CIPHER_CLR
:
2127 case ATH9K_CAP_TKIP_MIC
:
2128 switch (capability
) {
2132 return (ah
->sta_id1_defaults
&
2133 AR_STA_ID1_CRPT_MIC_ENABLE
) ? true :
2136 case ATH9K_CAP_TKIP_SPLIT
:
2137 return (ah
->misc_mode
& AR_PCU_MIC_NEW_LOC_ENA
) ?
2139 case ATH9K_CAP_MCAST_KEYSRCH
:
2140 switch (capability
) {
2144 if (REG_READ(ah
, AR_STA_ID1
) & AR_STA_ID1_ADHOC
) {
2147 return (ah
->sta_id1_defaults
&
2148 AR_STA_ID1_MCAST_KSRCH
) ? true :
2153 case ATH9K_CAP_TXPOW
:
2154 switch (capability
) {
2158 *result
= regulatory
->power_limit
;
2161 *result
= regulatory
->max_power_level
;
2164 *result
= regulatory
->tp_scale
;
2169 return (AR_SREV_9280_20_OR_LATER(ah
) &&
2170 (ah
->eep_ops
->get_eeprom(ah
, EEP_RC_CHAIN_MASK
) == 1))
2176 EXPORT_SYMBOL(ath9k_hw_getcapability
);
2178 bool ath9k_hw_setcapability(struct ath_hw
*ah
, enum ath9k_capability_type type
,
2179 u32 capability
, u32 setting
, int *status
)
2182 case ATH9K_CAP_TKIP_MIC
:
2184 ah
->sta_id1_defaults
|=
2185 AR_STA_ID1_CRPT_MIC_ENABLE
;
2187 ah
->sta_id1_defaults
&=
2188 ~AR_STA_ID1_CRPT_MIC_ENABLE
;
2190 case ATH9K_CAP_MCAST_KEYSRCH
:
2192 ah
->sta_id1_defaults
|= AR_STA_ID1_MCAST_KSRCH
;
2194 ah
->sta_id1_defaults
&= ~AR_STA_ID1_MCAST_KSRCH
;
2200 EXPORT_SYMBOL(ath9k_hw_setcapability
);
2202 /****************************/
2203 /* GPIO / RFKILL / Antennae */
2204 /****************************/
2206 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw
*ah
,
2210 u32 gpio_shift
, tmp
;
2213 addr
= AR_GPIO_OUTPUT_MUX3
;
2215 addr
= AR_GPIO_OUTPUT_MUX2
;
2217 addr
= AR_GPIO_OUTPUT_MUX1
;
2219 gpio_shift
= (gpio
% 6) * 5;
2221 if (AR_SREV_9280_20_OR_LATER(ah
)
2222 || (addr
!= AR_GPIO_OUTPUT_MUX1
)) {
2223 REG_RMW(ah
, addr
, (type
<< gpio_shift
),
2224 (0x1f << gpio_shift
));
2226 tmp
= REG_READ(ah
, addr
);
2227 tmp
= ((tmp
& 0x1F0) << 1) | (tmp
& ~0x1F0);
2228 tmp
&= ~(0x1f << gpio_shift
);
2229 tmp
|= (type
<< gpio_shift
);
2230 REG_WRITE(ah
, addr
, tmp
);
2234 void ath9k_hw_cfg_gpio_input(struct ath_hw
*ah
, u32 gpio
)
2238 BUG_ON(gpio
>= ah
->caps
.num_gpio_pins
);
2240 gpio_shift
= gpio
<< 1;
2244 (AR_GPIO_OE_OUT_DRV_NO
<< gpio_shift
),
2245 (AR_GPIO_OE_OUT_DRV
<< gpio_shift
));
2247 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input
);
2249 u32
ath9k_hw_gpio_get(struct ath_hw
*ah
, u32 gpio
)
2251 #define MS_REG_READ(x, y) \
2252 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2254 if (gpio
>= ah
->caps
.num_gpio_pins
)
2257 if (AR_SREV_9300_20_OR_LATER(ah
))
2258 return MS_REG_READ(AR9300
, gpio
) != 0;
2259 else if (AR_SREV_9271(ah
))
2260 return MS_REG_READ(AR9271
, gpio
) != 0;
2261 else if (AR_SREV_9287_10_OR_LATER(ah
))
2262 return MS_REG_READ(AR9287
, gpio
) != 0;
2263 else if (AR_SREV_9285_10_OR_LATER(ah
))
2264 return MS_REG_READ(AR9285
, gpio
) != 0;
2265 else if (AR_SREV_9280_10_OR_LATER(ah
))
2266 return MS_REG_READ(AR928X
, gpio
) != 0;
2268 return MS_REG_READ(AR
, gpio
) != 0;
2270 EXPORT_SYMBOL(ath9k_hw_gpio_get
);
2272 void ath9k_hw_cfg_output(struct ath_hw
*ah
, u32 gpio
,
2277 ath9k_hw_gpio_cfg_output_mux(ah
, gpio
, ah_signal_type
);
2279 gpio_shift
= 2 * gpio
;
2283 (AR_GPIO_OE_OUT_DRV_ALL
<< gpio_shift
),
2284 (AR_GPIO_OE_OUT_DRV
<< gpio_shift
));
2286 EXPORT_SYMBOL(ath9k_hw_cfg_output
);
2288 void ath9k_hw_set_gpio(struct ath_hw
*ah
, u32 gpio
, u32 val
)
2290 if (AR_SREV_9271(ah
))
2293 REG_RMW(ah
, AR_GPIO_IN_OUT
, ((val
& 1) << gpio
),
2296 EXPORT_SYMBOL(ath9k_hw_set_gpio
);
2298 u32
ath9k_hw_getdefantenna(struct ath_hw
*ah
)
2300 return REG_READ(ah
, AR_DEF_ANTENNA
) & 0x7;
2302 EXPORT_SYMBOL(ath9k_hw_getdefantenna
);
2304 void ath9k_hw_setantenna(struct ath_hw
*ah
, u32 antenna
)
2306 REG_WRITE(ah
, AR_DEF_ANTENNA
, (antenna
& 0x7));
2308 EXPORT_SYMBOL(ath9k_hw_setantenna
);
2310 /*********************/
2311 /* General Operation */
2312 /*********************/
2314 u32
ath9k_hw_getrxfilter(struct ath_hw
*ah
)
2316 u32 bits
= REG_READ(ah
, AR_RX_FILTER
);
2317 u32 phybits
= REG_READ(ah
, AR_PHY_ERR
);
2319 if (phybits
& AR_PHY_ERR_RADAR
)
2320 bits
|= ATH9K_RX_FILTER_PHYRADAR
;
2321 if (phybits
& (AR_PHY_ERR_OFDM_TIMING
| AR_PHY_ERR_CCK_TIMING
))
2322 bits
|= ATH9K_RX_FILTER_PHYERR
;
2326 EXPORT_SYMBOL(ath9k_hw_getrxfilter
);
2328 void ath9k_hw_setrxfilter(struct ath_hw
*ah
, u32 bits
)
2332 REG_WRITE(ah
, AR_RX_FILTER
, bits
);
2335 if (bits
& ATH9K_RX_FILTER_PHYRADAR
)
2336 phybits
|= AR_PHY_ERR_RADAR
;
2337 if (bits
& ATH9K_RX_FILTER_PHYERR
)
2338 phybits
|= AR_PHY_ERR_OFDM_TIMING
| AR_PHY_ERR_CCK_TIMING
;
2339 REG_WRITE(ah
, AR_PHY_ERR
, phybits
);
2342 REG_WRITE(ah
, AR_RXCFG
,
2343 REG_READ(ah
, AR_RXCFG
) | AR_RXCFG_ZLFDMA
);
2345 REG_WRITE(ah
, AR_RXCFG
,
2346 REG_READ(ah
, AR_RXCFG
) & ~AR_RXCFG_ZLFDMA
);
2348 EXPORT_SYMBOL(ath9k_hw_setrxfilter
);
2350 bool ath9k_hw_phy_disable(struct ath_hw
*ah
)
2352 if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_WARM
))
2355 ath9k_hw_init_pll(ah
, NULL
);
2358 EXPORT_SYMBOL(ath9k_hw_phy_disable
);
2360 bool ath9k_hw_disable(struct ath_hw
*ah
)
2362 if (!ath9k_hw_setpower(ah
, ATH9K_PM_AWAKE
))
2365 if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_COLD
))
2368 ath9k_hw_init_pll(ah
, NULL
);
2371 EXPORT_SYMBOL(ath9k_hw_disable
);
2373 void ath9k_hw_set_txpowerlimit(struct ath_hw
*ah
, u32 limit
)
2375 struct ath_regulatory
*regulatory
= ath9k_hw_regulatory(ah
);
2376 struct ath9k_channel
*chan
= ah
->curchan
;
2377 struct ieee80211_channel
*channel
= chan
->chan
;
2379 regulatory
->power_limit
= min(limit
, (u32
) MAX_RATE_POWER
);
2381 ah
->eep_ops
->set_txpower(ah
, chan
,
2382 ath9k_regd_get_ctl(regulatory
, chan
),
2383 channel
->max_antenna_gain
* 2,
2384 channel
->max_power
* 2,
2385 min((u32
) MAX_RATE_POWER
,
2386 (u32
) regulatory
->power_limit
));
2388 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit
);
2390 void ath9k_hw_setmac(struct ath_hw
*ah
, const u8
*mac
)
2392 memcpy(ath9k_hw_common(ah
)->macaddr
, mac
, ETH_ALEN
);
2394 EXPORT_SYMBOL(ath9k_hw_setmac
);
2396 void ath9k_hw_setopmode(struct ath_hw
*ah
)
2398 ath9k_hw_set_operating_mode(ah
, ah
->opmode
);
2400 EXPORT_SYMBOL(ath9k_hw_setopmode
);
2402 void ath9k_hw_setmcastfilter(struct ath_hw
*ah
, u32 filter0
, u32 filter1
)
2404 REG_WRITE(ah
, AR_MCAST_FIL0
, filter0
);
2405 REG_WRITE(ah
, AR_MCAST_FIL1
, filter1
);
2407 EXPORT_SYMBOL(ath9k_hw_setmcastfilter
);
2409 void ath9k_hw_write_associd(struct ath_hw
*ah
)
2411 struct ath_common
*common
= ath9k_hw_common(ah
);
2413 REG_WRITE(ah
, AR_BSS_ID0
, get_unaligned_le32(common
->curbssid
));
2414 REG_WRITE(ah
, AR_BSS_ID1
, get_unaligned_le16(common
->curbssid
+ 4) |
2415 ((common
->curaid
& 0x3fff) << AR_BSS_ID1_AID_S
));
2417 EXPORT_SYMBOL(ath9k_hw_write_associd
);
2419 #define ATH9K_MAX_TSF_READ 10
2421 u64
ath9k_hw_gettsf64(struct ath_hw
*ah
)
2423 u32 tsf_lower
, tsf_upper1
, tsf_upper2
;
2426 tsf_upper1
= REG_READ(ah
, AR_TSF_U32
);
2427 for (i
= 0; i
< ATH9K_MAX_TSF_READ
; i
++) {
2428 tsf_lower
= REG_READ(ah
, AR_TSF_L32
);
2429 tsf_upper2
= REG_READ(ah
, AR_TSF_U32
);
2430 if (tsf_upper2
== tsf_upper1
)
2432 tsf_upper1
= tsf_upper2
;
2435 WARN_ON( i
== ATH9K_MAX_TSF_READ
);
2437 return (((u64
)tsf_upper1
<< 32) | tsf_lower
);
2439 EXPORT_SYMBOL(ath9k_hw_gettsf64
);
2441 void ath9k_hw_settsf64(struct ath_hw
*ah
, u64 tsf64
)
2443 REG_WRITE(ah
, AR_TSF_L32
, tsf64
& 0xffffffff);
2444 REG_WRITE(ah
, AR_TSF_U32
, (tsf64
>> 32) & 0xffffffff);
2446 EXPORT_SYMBOL(ath9k_hw_settsf64
);
2448 void ath9k_hw_reset_tsf(struct ath_hw
*ah
)
2450 if (!ath9k_hw_wait(ah
, AR_SLP32_MODE
, AR_SLP32_TSF_WRITE_STATUS
, 0,
2451 AH_TSF_WRITE_TIMEOUT
))
2452 ath_print(ath9k_hw_common(ah
), ATH_DBG_RESET
,
2453 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2455 REG_WRITE(ah
, AR_RESET_TSF
, AR_RESET_TSF_ONCE
);
2457 EXPORT_SYMBOL(ath9k_hw_reset_tsf
);
2459 void ath9k_hw_set_tsfadjust(struct ath_hw
*ah
, u32 setting
)
2462 ah
->misc_mode
|= AR_PCU_TX_ADD_TSF
;
2464 ah
->misc_mode
&= ~AR_PCU_TX_ADD_TSF
;
2466 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust
);
2469 * Extend 15-bit time stamp from rx descriptor to
2470 * a full 64-bit TSF using the current h/w TSF.
2472 u64
ath9k_hw_extend_tsf(struct ath_hw
*ah
, u32 rstamp
)
2476 tsf
= ath9k_hw_gettsf64(ah
);
2477 if ((tsf
& 0x7fff) < rstamp
)
2479 return (tsf
& ~0x7fff) | rstamp
;
2481 EXPORT_SYMBOL(ath9k_hw_extend_tsf
);
2483 void ath9k_hw_set11nmac2040(struct ath_hw
*ah
)
2485 struct ieee80211_conf
*conf
= &ath9k_hw_common(ah
)->hw
->conf
;
2488 if (conf_is_ht40(conf
) && !ah
->config
.cwm_ignore_extcca
)
2489 macmode
= AR_2040_JOINED_RX_CLEAR
;
2493 REG_WRITE(ah
, AR_2040_MODE
, macmode
);
2496 /* HW Generic timers configuration */
2498 static const struct ath_gen_timer_configuration gen_tmr_configuration
[] =
2500 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2501 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2502 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2503 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2504 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2505 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2506 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2507 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2508 {AR_NEXT_NDP2_TIMER
, AR_NDP2_PERIOD
, AR_NDP2_TIMER_MODE
, 0x0001},
2509 {AR_NEXT_NDP2_TIMER
+ 1*4, AR_NDP2_PERIOD
+ 1*4,
2510 AR_NDP2_TIMER_MODE
, 0x0002},
2511 {AR_NEXT_NDP2_TIMER
+ 2*4, AR_NDP2_PERIOD
+ 2*4,
2512 AR_NDP2_TIMER_MODE
, 0x0004},
2513 {AR_NEXT_NDP2_TIMER
+ 3*4, AR_NDP2_PERIOD
+ 3*4,
2514 AR_NDP2_TIMER_MODE
, 0x0008},
2515 {AR_NEXT_NDP2_TIMER
+ 4*4, AR_NDP2_PERIOD
+ 4*4,
2516 AR_NDP2_TIMER_MODE
, 0x0010},
2517 {AR_NEXT_NDP2_TIMER
+ 5*4, AR_NDP2_PERIOD
+ 5*4,
2518 AR_NDP2_TIMER_MODE
, 0x0020},
2519 {AR_NEXT_NDP2_TIMER
+ 6*4, AR_NDP2_PERIOD
+ 6*4,
2520 AR_NDP2_TIMER_MODE
, 0x0040},
2521 {AR_NEXT_NDP2_TIMER
+ 7*4, AR_NDP2_PERIOD
+ 7*4,
2522 AR_NDP2_TIMER_MODE
, 0x0080}
2525 /* HW generic timer primitives */
2527 /* compute and clear index of rightmost 1 */
2528 static u32
rightmost_index(struct ath_gen_timer_table
*timer_table
, u32
*mask
)
2538 return timer_table
->gen_timer_index
[b
];
2541 u32
ath9k_hw_gettsf32(struct ath_hw
*ah
)
2543 return REG_READ(ah
, AR_TSF_L32
);
2545 EXPORT_SYMBOL(ath9k_hw_gettsf32
);
2547 struct ath_gen_timer
*ath_gen_timer_alloc(struct ath_hw
*ah
,
2548 void (*trigger
)(void *),
2549 void (*overflow
)(void *),
2553 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2554 struct ath_gen_timer
*timer
;
2556 timer
= kzalloc(sizeof(struct ath_gen_timer
), GFP_KERNEL
);
2558 if (timer
== NULL
) {
2559 ath_print(ath9k_hw_common(ah
), ATH_DBG_FATAL
,
2560 "Failed to allocate memory"
2561 "for hw timer[%d]\n", timer_index
);
2565 /* allocate a hardware generic timer slot */
2566 timer_table
->timers
[timer_index
] = timer
;
2567 timer
->index
= timer_index
;
2568 timer
->trigger
= trigger
;
2569 timer
->overflow
= overflow
;
2574 EXPORT_SYMBOL(ath_gen_timer_alloc
);
2576 void ath9k_hw_gen_timer_start(struct ath_hw
*ah
,
2577 struct ath_gen_timer
*timer
,
2581 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2584 BUG_ON(!timer_period
);
2586 set_bit(timer
->index
, &timer_table
->timer_mask
.timer_bits
);
2588 tsf
= ath9k_hw_gettsf32(ah
);
2590 ath_print(ath9k_hw_common(ah
), ATH_DBG_HWTIMER
,
2591 "curent tsf %x period %x"
2592 "timer_next %x\n", tsf
, timer_period
, timer_next
);
2595 * Pull timer_next forward if the current TSF already passed it
2596 * because of software latency
2598 if (timer_next
< tsf
)
2599 timer_next
= tsf
+ timer_period
;
2602 * Program generic timer registers
2604 REG_WRITE(ah
, gen_tmr_configuration
[timer
->index
].next_addr
,
2606 REG_WRITE(ah
, gen_tmr_configuration
[timer
->index
].period_addr
,
2608 REG_SET_BIT(ah
, gen_tmr_configuration
[timer
->index
].mode_addr
,
2609 gen_tmr_configuration
[timer
->index
].mode_mask
);
2611 /* Enable both trigger and thresh interrupt masks */
2612 REG_SET_BIT(ah
, AR_IMR_S5
,
2613 (SM(AR_GENTMR_BIT(timer
->index
), AR_IMR_S5_GENTIMER_THRESH
) |
2614 SM(AR_GENTMR_BIT(timer
->index
), AR_IMR_S5_GENTIMER_TRIG
)));
2616 EXPORT_SYMBOL(ath9k_hw_gen_timer_start
);
2618 void ath9k_hw_gen_timer_stop(struct ath_hw
*ah
, struct ath_gen_timer
*timer
)
2620 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2622 if ((timer
->index
< AR_FIRST_NDP_TIMER
) ||
2623 (timer
->index
>= ATH_MAX_GEN_TIMER
)) {
2627 /* Clear generic timer enable bits. */
2628 REG_CLR_BIT(ah
, gen_tmr_configuration
[timer
->index
].mode_addr
,
2629 gen_tmr_configuration
[timer
->index
].mode_mask
);
2631 /* Disable both trigger and thresh interrupt masks */
2632 REG_CLR_BIT(ah
, AR_IMR_S5
,
2633 (SM(AR_GENTMR_BIT(timer
->index
), AR_IMR_S5_GENTIMER_THRESH
) |
2634 SM(AR_GENTMR_BIT(timer
->index
), AR_IMR_S5_GENTIMER_TRIG
)));
2636 clear_bit(timer
->index
, &timer_table
->timer_mask
.timer_bits
);
2638 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop
);
2640 void ath_gen_timer_free(struct ath_hw
*ah
, struct ath_gen_timer
*timer
)
2642 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2644 /* free the hardware generic timer slot */
2645 timer_table
->timers
[timer
->index
] = NULL
;
2648 EXPORT_SYMBOL(ath_gen_timer_free
);
2651 * Generic Timer Interrupts handling
2653 void ath_gen_timer_isr(struct ath_hw
*ah
)
2655 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2656 struct ath_gen_timer
*timer
;
2657 struct ath_common
*common
= ath9k_hw_common(ah
);
2658 u32 trigger_mask
, thresh_mask
, index
;
2660 /* get hardware generic timer interrupt status */
2661 trigger_mask
= ah
->intr_gen_timer_trigger
;
2662 thresh_mask
= ah
->intr_gen_timer_thresh
;
2663 trigger_mask
&= timer_table
->timer_mask
.val
;
2664 thresh_mask
&= timer_table
->timer_mask
.val
;
2666 trigger_mask
&= ~thresh_mask
;
2668 while (thresh_mask
) {
2669 index
= rightmost_index(timer_table
, &thresh_mask
);
2670 timer
= timer_table
->timers
[index
];
2672 ath_print(common
, ATH_DBG_HWTIMER
,
2673 "TSF overflow for Gen timer %d\n", index
);
2674 timer
->overflow(timer
->arg
);
2677 while (trigger_mask
) {
2678 index
= rightmost_index(timer_table
, &trigger_mask
);
2679 timer
= timer_table
->timers
[index
];
2681 ath_print(common
, ATH_DBG_HWTIMER
,
2682 "Gen timer[%d] trigger\n", index
);
2683 timer
->trigger(timer
->arg
);
2686 EXPORT_SYMBOL(ath_gen_timer_isr
);
2692 void ath9k_hw_htc_resetinit(struct ath_hw
*ah
)
2694 ah
->htc_reset_init
= true;
2696 EXPORT_SYMBOL(ath9k_hw_htc_resetinit
);
2701 } ath_mac_bb_names
[] = {
2702 /* Devices with external radios */
2703 { AR_SREV_VERSION_5416_PCI
, "5416" },
2704 { AR_SREV_VERSION_5416_PCIE
, "5418" },
2705 { AR_SREV_VERSION_9100
, "9100" },
2706 { AR_SREV_VERSION_9160
, "9160" },
2707 /* Single-chip solutions */
2708 { AR_SREV_VERSION_9280
, "9280" },
2709 { AR_SREV_VERSION_9285
, "9285" },
2710 { AR_SREV_VERSION_9287
, "9287" },
2711 { AR_SREV_VERSION_9271
, "9271" },
2712 { AR_SREV_VERSION_9300
, "9300" },
2715 /* For devices with external radios */
2719 } ath_rf_names
[] = {
2721 { AR_RAD5133_SREV_MAJOR
, "5133" },
2722 { AR_RAD5122_SREV_MAJOR
, "5122" },
2723 { AR_RAD2133_SREV_MAJOR
, "2133" },
2724 { AR_RAD2122_SREV_MAJOR
, "2122" }
2728 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2730 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version
)
2734 for (i
=0; i
<ARRAY_SIZE(ath_mac_bb_names
); i
++) {
2735 if (ath_mac_bb_names
[i
].version
== mac_bb_version
) {
2736 return ath_mac_bb_names
[i
].name
;
2744 * Return the RF name. "????" is returned if the RF is unknown.
2745 * Used for devices with external radios.
2747 static const char *ath9k_hw_rf_name(u16 rf_version
)
2751 for (i
=0; i
<ARRAY_SIZE(ath_rf_names
); i
++) {
2752 if (ath_rf_names
[i
].version
== rf_version
) {
2753 return ath_rf_names
[i
].name
;
2760 void ath9k_hw_name(struct ath_hw
*ah
, char *hw_name
, size_t len
)
2764 /* chipsets >= AR9280 are single-chip */
2765 if (AR_SREV_9280_10_OR_LATER(ah
)) {
2766 used
= snprintf(hw_name
, len
,
2767 "Atheros AR%s Rev:%x",
2768 ath9k_hw_mac_bb_name(ah
->hw_version
.macVersion
),
2769 ah
->hw_version
.macRev
);
2772 used
= snprintf(hw_name
, len
,
2773 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2774 ath9k_hw_mac_bb_name(ah
->hw_version
.macVersion
),
2775 ah
->hw_version
.macRev
,
2776 ath9k_hw_rf_name((ah
->hw_version
.analog5GhzRev
&
2777 AR_RADIO_SREV_MAJOR
)),
2778 ah
->hw_version
.phyRev
);
2781 hw_name
[used
] = '\0';
2783 EXPORT_SYMBOL(ath9k_hw_name
);