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 <linux/slab.h>
19 #include <asm/unaligned.h>
24 #include "ar9003_mac.h"
26 #define ATH9K_CLOCK_RATE_CCK 22
27 #define ATH9K_CLOCK_RATE_5GHZ_OFDM 40
28 #define ATH9K_CLOCK_RATE_2GHZ_OFDM 44
29 #define ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM 44
31 static bool ath9k_hw_set_reset_reg(struct ath_hw
*ah
, u32 type
);
33 MODULE_AUTHOR("Atheros Communications");
34 MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards.");
35 MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
36 MODULE_LICENSE("Dual BSD/GPL");
38 static int __init
ath9k_init(void)
42 module_init(ath9k_init
);
44 static void __exit
ath9k_exit(void)
48 module_exit(ath9k_exit
);
50 /* Private hardware callbacks */
52 static void ath9k_hw_init_cal_settings(struct ath_hw
*ah
)
54 ath9k_hw_private_ops(ah
)->init_cal_settings(ah
);
57 static void ath9k_hw_init_mode_regs(struct ath_hw
*ah
)
59 ath9k_hw_private_ops(ah
)->init_mode_regs(ah
);
62 static bool ath9k_hw_macversion_supported(struct ath_hw
*ah
)
64 struct ath_hw_private_ops
*priv_ops
= ath9k_hw_private_ops(ah
);
66 return priv_ops
->macversion_supported(ah
->hw_version
.macVersion
);
69 static u32
ath9k_hw_compute_pll_control(struct ath_hw
*ah
,
70 struct ath9k_channel
*chan
)
72 return ath9k_hw_private_ops(ah
)->compute_pll_control(ah
, chan
);
75 static void ath9k_hw_init_mode_gain_regs(struct ath_hw
*ah
)
77 if (!ath9k_hw_private_ops(ah
)->init_mode_gain_regs
)
80 ath9k_hw_private_ops(ah
)->init_mode_gain_regs(ah
);
83 /********************/
84 /* Helper Functions */
85 /********************/
87 static u32
ath9k_hw_mac_clks(struct ath_hw
*ah
, u32 usecs
)
89 struct ieee80211_conf
*conf
= &ath9k_hw_common(ah
)->hw
->conf
;
91 if (!ah
->curchan
) /* should really check for CCK instead */
92 return usecs
*ATH9K_CLOCK_RATE_CCK
;
93 if (conf
->channel
->band
== IEEE80211_BAND_2GHZ
)
94 return usecs
*ATH9K_CLOCK_RATE_2GHZ_OFDM
;
96 if (ah
->caps
.hw_caps
& ATH9K_HW_CAP_FASTCLOCK
)
97 return usecs
* ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM
;
99 return usecs
* ATH9K_CLOCK_RATE_5GHZ_OFDM
;
102 static u32
ath9k_hw_mac_to_clks(struct ath_hw
*ah
, u32 usecs
)
104 struct ieee80211_conf
*conf
= &ath9k_hw_common(ah
)->hw
->conf
;
106 if (conf_is_ht40(conf
))
107 return ath9k_hw_mac_clks(ah
, usecs
) * 2;
109 return ath9k_hw_mac_clks(ah
, usecs
);
112 bool ath9k_hw_wait(struct ath_hw
*ah
, u32 reg
, u32 mask
, u32 val
, u32 timeout
)
116 BUG_ON(timeout
< AH_TIME_QUANTUM
);
118 for (i
= 0; i
< (timeout
/ AH_TIME_QUANTUM
); i
++) {
119 if ((REG_READ(ah
, reg
) & mask
) == val
)
122 udelay(AH_TIME_QUANTUM
);
125 ath_print(ath9k_hw_common(ah
), ATH_DBG_ANY
,
126 "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
127 timeout
, reg
, REG_READ(ah
, reg
), mask
, val
);
131 EXPORT_SYMBOL(ath9k_hw_wait
);
133 u32
ath9k_hw_reverse_bits(u32 val
, u32 n
)
138 for (i
= 0, retval
= 0; i
< n
; i
++) {
139 retval
= (retval
<< 1) | (val
& 1);
145 bool ath9k_get_channel_edges(struct ath_hw
*ah
,
149 struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
151 if (flags
& CHANNEL_5GHZ
) {
152 *low
= pCap
->low_5ghz_chan
;
153 *high
= pCap
->high_5ghz_chan
;
156 if ((flags
& CHANNEL_2GHZ
)) {
157 *low
= pCap
->low_2ghz_chan
;
158 *high
= pCap
->high_2ghz_chan
;
164 u16
ath9k_hw_computetxtime(struct ath_hw
*ah
,
166 u32 frameLen
, u16 rateix
,
169 u32 bitsPerSymbol
, numBits
, numSymbols
, phyTime
, txTime
;
175 case WLAN_RC_PHY_CCK
:
176 phyTime
= CCK_PREAMBLE_BITS
+ CCK_PLCP_BITS
;
179 numBits
= frameLen
<< 3;
180 txTime
= CCK_SIFS_TIME
+ phyTime
+ ((numBits
* 1000) / kbps
);
182 case WLAN_RC_PHY_OFDM
:
183 if (ah
->curchan
&& IS_CHAN_QUARTER_RATE(ah
->curchan
)) {
184 bitsPerSymbol
= (kbps
* OFDM_SYMBOL_TIME_QUARTER
) / 1000;
185 numBits
= OFDM_PLCP_BITS
+ (frameLen
<< 3);
186 numSymbols
= DIV_ROUND_UP(numBits
, bitsPerSymbol
);
187 txTime
= OFDM_SIFS_TIME_QUARTER
188 + OFDM_PREAMBLE_TIME_QUARTER
189 + (numSymbols
* OFDM_SYMBOL_TIME_QUARTER
);
190 } else if (ah
->curchan
&&
191 IS_CHAN_HALF_RATE(ah
->curchan
)) {
192 bitsPerSymbol
= (kbps
* OFDM_SYMBOL_TIME_HALF
) / 1000;
193 numBits
= OFDM_PLCP_BITS
+ (frameLen
<< 3);
194 numSymbols
= DIV_ROUND_UP(numBits
, bitsPerSymbol
);
195 txTime
= OFDM_SIFS_TIME_HALF
+
196 OFDM_PREAMBLE_TIME_HALF
197 + (numSymbols
* OFDM_SYMBOL_TIME_HALF
);
199 bitsPerSymbol
= (kbps
* OFDM_SYMBOL_TIME
) / 1000;
200 numBits
= OFDM_PLCP_BITS
+ (frameLen
<< 3);
201 numSymbols
= DIV_ROUND_UP(numBits
, bitsPerSymbol
);
202 txTime
= OFDM_SIFS_TIME
+ OFDM_PREAMBLE_TIME
203 + (numSymbols
* OFDM_SYMBOL_TIME
);
207 ath_print(ath9k_hw_common(ah
), ATH_DBG_FATAL
,
208 "Unknown phy %u (rate ix %u)\n", phy
, rateix
);
215 EXPORT_SYMBOL(ath9k_hw_computetxtime
);
217 void ath9k_hw_get_channel_centers(struct ath_hw
*ah
,
218 struct ath9k_channel
*chan
,
219 struct chan_centers
*centers
)
223 if (!IS_CHAN_HT40(chan
)) {
224 centers
->ctl_center
= centers
->ext_center
=
225 centers
->synth_center
= chan
->channel
;
229 if ((chan
->chanmode
== CHANNEL_A_HT40PLUS
) ||
230 (chan
->chanmode
== CHANNEL_G_HT40PLUS
)) {
231 centers
->synth_center
=
232 chan
->channel
+ HT40_CHANNEL_CENTER_SHIFT
;
235 centers
->synth_center
=
236 chan
->channel
- HT40_CHANNEL_CENTER_SHIFT
;
240 centers
->ctl_center
=
241 centers
->synth_center
- (extoff
* HT40_CHANNEL_CENTER_SHIFT
);
242 /* 25 MHz spacing is supported by hw but not on upper layers */
243 centers
->ext_center
=
244 centers
->synth_center
+ (extoff
* HT40_CHANNEL_CENTER_SHIFT
);
251 static void ath9k_hw_read_revisions(struct ath_hw
*ah
)
255 val
= REG_READ(ah
, AR_SREV
) & AR_SREV_ID
;
258 val
= REG_READ(ah
, AR_SREV
);
259 ah
->hw_version
.macVersion
=
260 (val
& AR_SREV_VERSION2
) >> AR_SREV_TYPE2_S
;
261 ah
->hw_version
.macRev
= MS(val
, AR_SREV_REVISION2
);
262 ah
->is_pciexpress
= (val
& AR_SREV_TYPE2_HOST_MODE
) ? 0 : 1;
264 if (!AR_SREV_9100(ah
))
265 ah
->hw_version
.macVersion
= MS(val
, AR_SREV_VERSION
);
267 ah
->hw_version
.macRev
= val
& AR_SREV_REVISION
;
269 if (ah
->hw_version
.macVersion
== AR_SREV_VERSION_5416_PCIE
)
270 ah
->is_pciexpress
= true;
274 /************************************/
275 /* HW Attach, Detach, Init Routines */
276 /************************************/
278 static void ath9k_hw_disablepcie(struct ath_hw
*ah
)
280 if (AR_SREV_9100(ah
))
283 ENABLE_REGWRITE_BUFFER(ah
);
285 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x9248fc00);
286 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x24924924);
287 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x28000029);
288 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x57160824);
289 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x25980579);
290 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x00000000);
291 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x1aaabe40);
292 REG_WRITE(ah
, AR_PCIE_SERDES
, 0xbe105554);
293 REG_WRITE(ah
, AR_PCIE_SERDES
, 0x000e1007);
295 REG_WRITE(ah
, AR_PCIE_SERDES2
, 0x00000000);
297 REGWRITE_BUFFER_FLUSH(ah
);
298 DISABLE_REGWRITE_BUFFER(ah
);
301 /* This should work for all families including legacy */
302 static bool ath9k_hw_chip_test(struct ath_hw
*ah
)
304 struct ath_common
*common
= ath9k_hw_common(ah
);
305 u32 regAddr
[2] = { AR_STA_ID0
};
307 u32 patternData
[4] = { 0x55555555,
313 if (!AR_SREV_9300_20_OR_LATER(ah
)) {
315 regAddr
[1] = AR_PHY_BASE
+ (8 << 2);
319 for (i
= 0; i
< loop_max
; i
++) {
320 u32 addr
= regAddr
[i
];
323 regHold
[i
] = REG_READ(ah
, addr
);
324 for (j
= 0; j
< 0x100; j
++) {
325 wrData
= (j
<< 16) | j
;
326 REG_WRITE(ah
, addr
, wrData
);
327 rdData
= REG_READ(ah
, addr
);
328 if (rdData
!= wrData
) {
329 ath_print(common
, ATH_DBG_FATAL
,
330 "address test failed "
331 "addr: 0x%08x - wr:0x%08x != "
333 addr
, wrData
, rdData
);
337 for (j
= 0; j
< 4; j
++) {
338 wrData
= patternData
[j
];
339 REG_WRITE(ah
, addr
, wrData
);
340 rdData
= REG_READ(ah
, addr
);
341 if (wrData
!= rdData
) {
342 ath_print(common
, ATH_DBG_FATAL
,
343 "address test failed "
344 "addr: 0x%08x - wr:0x%08x != "
346 addr
, wrData
, rdData
);
350 REG_WRITE(ah
, regAddr
[i
], regHold
[i
]);
357 static void ath9k_hw_init_config(struct ath_hw
*ah
)
361 ah
->config
.dma_beacon_response_time
= 2;
362 ah
->config
.sw_beacon_response_time
= 10;
363 ah
->config
.additional_swba_backoff
= 0;
364 ah
->config
.ack_6mb
= 0x0;
365 ah
->config
.cwm_ignore_extcca
= 0;
366 ah
->config
.pcie_powersave_enable
= 0;
367 ah
->config
.pcie_clock_req
= 0;
368 ah
->config
.pcie_waen
= 0;
369 ah
->config
.analog_shiftreg
= 1;
370 ah
->config
.ofdm_trig_low
= 200;
371 ah
->config
.ofdm_trig_high
= 500;
372 ah
->config
.cck_trig_high
= 200;
373 ah
->config
.cck_trig_low
= 100;
376 * For now ANI is disabled for AR9003, it is still
379 if (!AR_SREV_9300_20_OR_LATER(ah
))
380 ah
->config
.enable_ani
= 1;
382 for (i
= 0; i
< AR_EEPROM_MODAL_SPURS
; i
++) {
383 ah
->config
.spurchans
[i
][0] = AR_NO_SPUR
;
384 ah
->config
.spurchans
[i
][1] = AR_NO_SPUR
;
387 if (ah
->hw_version
.devid
!= AR2427_DEVID_PCIE
)
388 ah
->config
.ht_enable
= 1;
390 ah
->config
.ht_enable
= 0;
392 ah
->config
.rx_intr_mitigation
= true;
395 * Tx IQ Calibration (ah->config.tx_iq_calibration) is only
396 * used by AR9003, but it is showing reliability issues.
397 * It will take a while to fix so this is currently disabled.
401 * We need this for PCI devices only (Cardbus, PCI, miniPCI)
402 * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
403 * This means we use it for all AR5416 devices, and the few
404 * minor PCI AR9280 devices out there.
406 * Serialization is required because these devices do not handle
407 * well the case of two concurrent reads/writes due to the latency
408 * involved. During one read/write another read/write can be issued
409 * on another CPU while the previous read/write may still be working
410 * on our hardware, if we hit this case the hardware poops in a loop.
411 * We prevent this by serializing reads and writes.
413 * This issue is not present on PCI-Express devices or pre-AR5416
414 * devices (legacy, 802.11abg).
416 if (num_possible_cpus() > 1)
417 ah
->config
.serialize_regmode
= SER_REG_MODE_AUTO
;
420 static void ath9k_hw_init_defaults(struct ath_hw
*ah
)
422 struct ath_regulatory
*regulatory
= ath9k_hw_regulatory(ah
);
424 regulatory
->country_code
= CTRY_DEFAULT
;
425 regulatory
->power_limit
= MAX_RATE_POWER
;
426 regulatory
->tp_scale
= ATH9K_TP_SCALE_MAX
;
428 ah
->hw_version
.magic
= AR5416_MAGIC
;
429 ah
->hw_version
.subvendorid
= 0;
432 if (!AR_SREV_9100(ah
))
433 ah
->ah_flags
= AH_USE_EEPROM
;
436 ah
->sta_id1_defaults
= AR_STA_ID1_CRPT_MIC_ENABLE
;
437 ah
->beacon_interval
= 100;
438 ah
->enable_32kHz_clock
= DONT_USE_32KHZ
;
439 ah
->slottime
= (u32
) -1;
440 ah
->globaltxtimeout
= (u32
) -1;
441 ah
->power_mode
= ATH9K_PM_UNDEFINED
;
444 static int ath9k_hw_init_macaddr(struct ath_hw
*ah
)
446 struct ath_common
*common
= ath9k_hw_common(ah
);
450 u32 EEP_MAC
[] = { EEP_MAC_LSW
, EEP_MAC_MID
, EEP_MAC_MSW
};
453 for (i
= 0; i
< 3; i
++) {
454 eeval
= ah
->eep_ops
->get_eeprom(ah
, EEP_MAC
[i
]);
456 common
->macaddr
[2 * i
] = eeval
>> 8;
457 common
->macaddr
[2 * i
+ 1] = eeval
& 0xff;
459 if (sum
== 0 || sum
== 0xffff * 3)
460 return -EADDRNOTAVAIL
;
465 static int ath9k_hw_post_init(struct ath_hw
*ah
)
469 if (!AR_SREV_9271(ah
)) {
470 if (!ath9k_hw_chip_test(ah
))
474 if (!AR_SREV_9300_20_OR_LATER(ah
)) {
475 ecode
= ar9002_hw_rf_claim(ah
);
480 ecode
= ath9k_hw_eeprom_init(ah
);
484 ath_print(ath9k_hw_common(ah
), ATH_DBG_CONFIG
,
485 "Eeprom VER: %d, REV: %d\n",
486 ah
->eep_ops
->get_eeprom_ver(ah
),
487 ah
->eep_ops
->get_eeprom_rev(ah
));
489 ecode
= ath9k_hw_rf_alloc_ext_banks(ah
);
491 ath_print(ath9k_hw_common(ah
), ATH_DBG_FATAL
,
492 "Failed allocating banks for "
497 if (!AR_SREV_9100(ah
)) {
498 ath9k_hw_ani_setup(ah
);
499 ath9k_hw_ani_init(ah
);
505 static void ath9k_hw_attach_ops(struct ath_hw
*ah
)
507 if (AR_SREV_9300_20_OR_LATER(ah
))
508 ar9003_hw_attach_ops(ah
);
510 ar9002_hw_attach_ops(ah
);
513 /* Called for all hardware families */
514 static int __ath9k_hw_init(struct ath_hw
*ah
)
516 struct ath_common
*common
= ath9k_hw_common(ah
);
519 if (ah
->hw_version
.devid
== AR5416_AR9100_DEVID
)
520 ah
->hw_version
.macVersion
= AR_SREV_VERSION_9100
;
522 if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_POWER_ON
)) {
523 ath_print(common
, ATH_DBG_FATAL
,
524 "Couldn't reset chip\n");
528 ath9k_hw_init_defaults(ah
);
529 ath9k_hw_init_config(ah
);
531 ath9k_hw_attach_ops(ah
);
533 if (!ath9k_hw_setpower(ah
, ATH9K_PM_AWAKE
)) {
534 ath_print(common
, ATH_DBG_FATAL
, "Couldn't wakeup chip\n");
538 if (ah
->config
.serialize_regmode
== SER_REG_MODE_AUTO
) {
539 if (ah
->hw_version
.macVersion
== AR_SREV_VERSION_5416_PCI
||
540 ((AR_SREV_9160(ah
) || AR_SREV_9280(ah
)) &&
541 !ah
->is_pciexpress
)) {
542 ah
->config
.serialize_regmode
=
545 ah
->config
.serialize_regmode
=
550 ath_print(common
, ATH_DBG_RESET
, "serialize_regmode is %d\n",
551 ah
->config
.serialize_regmode
);
553 if (AR_SREV_9285(ah
) || AR_SREV_9271(ah
))
554 ah
->config
.max_txtrig_level
= MAX_TX_FIFO_THRESHOLD
>> 1;
556 ah
->config
.max_txtrig_level
= MAX_TX_FIFO_THRESHOLD
;
558 if (!ath9k_hw_macversion_supported(ah
)) {
559 ath_print(common
, ATH_DBG_FATAL
,
560 "Mac Chip Rev 0x%02x.%x is not supported by "
561 "this driver\n", ah
->hw_version
.macVersion
,
562 ah
->hw_version
.macRev
);
566 if (AR_SREV_9271(ah
) || AR_SREV_9100(ah
))
567 ah
->is_pciexpress
= false;
569 ah
->hw_version
.phyRev
= REG_READ(ah
, AR_PHY_CHIP_ID
);
570 ath9k_hw_init_cal_settings(ah
);
572 ah
->ani_function
= ATH9K_ANI_ALL
;
573 if (AR_SREV_9280_10_OR_LATER(ah
) && !AR_SREV_9300_20_OR_LATER(ah
))
574 ah
->ani_function
&= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL
;
576 ath9k_hw_init_mode_regs(ah
);
579 * Configire PCIE after Ini init. SERDES values now come from ini file
580 * This enables PCIe low power mode.
582 if (AR_SREV_9300_20_OR_LATER(ah
)) {
586 /* Set Bits 16 and 17 in the AR_WA register. */
587 regval
= REG_READ(ah
, AR_WA
);
588 regval
|= 0x00030000;
589 REG_WRITE(ah
, AR_WA
, regval
);
591 for (i
= 0; i
< ah
->iniPcieSerdesLowPower
.ia_rows
; i
++) {
593 INI_RA(&ah
->iniPcieSerdesLowPower
, i
, 0),
594 INI_RA(&ah
->iniPcieSerdesLowPower
, i
, 1));
598 if (ah
->is_pciexpress
)
599 ath9k_hw_configpcipowersave(ah
, 0, 0);
601 ath9k_hw_disablepcie(ah
);
603 if (!AR_SREV_9300_20_OR_LATER(ah
))
604 ar9002_hw_cck_chan14_spread(ah
);
606 r
= ath9k_hw_post_init(ah
);
610 ath9k_hw_init_mode_gain_regs(ah
);
611 r
= ath9k_hw_fill_cap_info(ah
);
615 r
= ath9k_hw_init_macaddr(ah
);
617 ath_print(common
, ATH_DBG_FATAL
,
618 "Failed to initialize MAC address\n");
622 if (AR_SREV_9285(ah
) || AR_SREV_9271(ah
))
623 ah
->tx_trig_level
= (AR_FTRIG_256B
>> AR_FTRIG_S
);
625 ah
->tx_trig_level
= (AR_FTRIG_512B
>> AR_FTRIG_S
);
627 if (AR_SREV_9300_20_OR_LATER(ah
))
628 ar9003_hw_set_nf_limits(ah
);
630 ath9k_init_nfcal_hist_buffer(ah
);
632 common
->state
= ATH_HW_INITIALIZED
;
637 int ath9k_hw_init(struct ath_hw
*ah
)
640 struct ath_common
*common
= ath9k_hw_common(ah
);
642 /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */
643 switch (ah
->hw_version
.devid
) {
644 case AR5416_DEVID_PCI
:
645 case AR5416_DEVID_PCIE
:
646 case AR5416_AR9100_DEVID
:
647 case AR9160_DEVID_PCI
:
648 case AR9280_DEVID_PCI
:
649 case AR9280_DEVID_PCIE
:
650 case AR9285_DEVID_PCIE
:
651 case AR9287_DEVID_PCI
:
652 case AR9287_DEVID_PCIE
:
653 case AR2427_DEVID_PCIE
:
654 case AR9300_DEVID_PCIE
:
657 if (common
->bus_ops
->ath_bus_type
== ATH_USB
)
659 ath_print(common
, ATH_DBG_FATAL
,
660 "Hardware device ID 0x%04x not supported\n",
661 ah
->hw_version
.devid
);
665 ret
= __ath9k_hw_init(ah
);
667 ath_print(common
, ATH_DBG_FATAL
,
668 "Unable to initialize hardware; "
669 "initialization status: %d\n", ret
);
675 EXPORT_SYMBOL(ath9k_hw_init
);
677 static void ath9k_hw_init_qos(struct ath_hw
*ah
)
679 ENABLE_REGWRITE_BUFFER(ah
);
681 REG_WRITE(ah
, AR_MIC_QOS_CONTROL
, 0x100aa);
682 REG_WRITE(ah
, AR_MIC_QOS_SELECT
, 0x3210);
684 REG_WRITE(ah
, AR_QOS_NO_ACK
,
685 SM(2, AR_QOS_NO_ACK_TWO_BIT
) |
686 SM(5, AR_QOS_NO_ACK_BIT_OFF
) |
687 SM(0, AR_QOS_NO_ACK_BYTE_OFF
));
689 REG_WRITE(ah
, AR_TXOP_X
, AR_TXOP_X_VAL
);
690 REG_WRITE(ah
, AR_TXOP_0_3
, 0xFFFFFFFF);
691 REG_WRITE(ah
, AR_TXOP_4_7
, 0xFFFFFFFF);
692 REG_WRITE(ah
, AR_TXOP_8_11
, 0xFFFFFFFF);
693 REG_WRITE(ah
, AR_TXOP_12_15
, 0xFFFFFFFF);
695 REGWRITE_BUFFER_FLUSH(ah
);
696 DISABLE_REGWRITE_BUFFER(ah
);
699 static void ath9k_hw_init_pll(struct ath_hw
*ah
,
700 struct ath9k_channel
*chan
)
702 u32 pll
= ath9k_hw_compute_pll_control(ah
, chan
);
704 REG_WRITE(ah
, AR_RTC_PLL_CONTROL
, pll
);
706 /* Switch the core clock for ar9271 to 117Mhz */
707 if (AR_SREV_9271(ah
)) {
709 REG_WRITE(ah
, 0x50040, 0x304);
712 udelay(RTC_PLL_SETTLE_DELAY
);
714 REG_WRITE(ah
, AR_RTC_SLEEP_CLK
, AR_RTC_FORCE_DERIVED_CLK
);
717 static void ath9k_hw_init_interrupt_masks(struct ath_hw
*ah
,
718 enum nl80211_iftype opmode
)
720 u32 imr_reg
= AR_IMR_TXERR
|
726 if (AR_SREV_9300_20_OR_LATER(ah
)) {
727 imr_reg
|= AR_IMR_RXOK_HP
;
728 if (ah
->config
.rx_intr_mitigation
)
729 imr_reg
|= AR_IMR_RXINTM
| AR_IMR_RXMINTR
;
731 imr_reg
|= AR_IMR_RXOK_LP
;
734 if (ah
->config
.rx_intr_mitigation
)
735 imr_reg
|= AR_IMR_RXINTM
| AR_IMR_RXMINTR
;
737 imr_reg
|= AR_IMR_RXOK
;
740 if (ah
->config
.tx_intr_mitigation
)
741 imr_reg
|= AR_IMR_TXINTM
| AR_IMR_TXMINTR
;
743 imr_reg
|= AR_IMR_TXOK
;
745 if (opmode
== NL80211_IFTYPE_AP
)
746 imr_reg
|= AR_IMR_MIB
;
748 ENABLE_REGWRITE_BUFFER(ah
);
750 REG_WRITE(ah
, AR_IMR
, imr_reg
);
751 ah
->imrs2_reg
|= AR_IMR_S2_GTT
;
752 REG_WRITE(ah
, AR_IMR_S2
, ah
->imrs2_reg
);
754 if (!AR_SREV_9100(ah
)) {
755 REG_WRITE(ah
, AR_INTR_SYNC_CAUSE
, 0xFFFFFFFF);
756 REG_WRITE(ah
, AR_INTR_SYNC_ENABLE
, AR_INTR_SYNC_DEFAULT
);
757 REG_WRITE(ah
, AR_INTR_SYNC_MASK
, 0);
760 REGWRITE_BUFFER_FLUSH(ah
);
761 DISABLE_REGWRITE_BUFFER(ah
);
763 if (AR_SREV_9300_20_OR_LATER(ah
)) {
764 REG_WRITE(ah
, AR_INTR_PRIO_ASYNC_ENABLE
, 0);
765 REG_WRITE(ah
, AR_INTR_PRIO_ASYNC_MASK
, 0);
766 REG_WRITE(ah
, AR_INTR_PRIO_SYNC_ENABLE
, 0);
767 REG_WRITE(ah
, AR_INTR_PRIO_SYNC_MASK
, 0);
771 static void ath9k_hw_setslottime(struct ath_hw
*ah
, u32 us
)
773 u32 val
= ath9k_hw_mac_to_clks(ah
, us
);
774 val
= min(val
, (u32
) 0xFFFF);
775 REG_WRITE(ah
, AR_D_GBL_IFS_SLOT
, val
);
778 static void ath9k_hw_set_ack_timeout(struct ath_hw
*ah
, u32 us
)
780 u32 val
= ath9k_hw_mac_to_clks(ah
, us
);
781 val
= min(val
, (u32
) MS(0xFFFFFFFF, AR_TIME_OUT_ACK
));
782 REG_RMW_FIELD(ah
, AR_TIME_OUT
, AR_TIME_OUT_ACK
, val
);
785 static void ath9k_hw_set_cts_timeout(struct ath_hw
*ah
, u32 us
)
787 u32 val
= ath9k_hw_mac_to_clks(ah
, us
);
788 val
= min(val
, (u32
) MS(0xFFFFFFFF, AR_TIME_OUT_CTS
));
789 REG_RMW_FIELD(ah
, AR_TIME_OUT
, AR_TIME_OUT_CTS
, val
);
792 static bool ath9k_hw_set_global_txtimeout(struct ath_hw
*ah
, u32 tu
)
795 ath_print(ath9k_hw_common(ah
), ATH_DBG_XMIT
,
796 "bad global tx timeout %u\n", tu
);
797 ah
->globaltxtimeout
= (u32
) -1;
800 REG_RMW_FIELD(ah
, AR_GTXTO
, AR_GTXTO_TIMEOUT_LIMIT
, tu
);
801 ah
->globaltxtimeout
= tu
;
806 void ath9k_hw_init_global_settings(struct ath_hw
*ah
)
808 struct ieee80211_conf
*conf
= &ath9k_hw_common(ah
)->hw
->conf
;
813 ath_print(ath9k_hw_common(ah
), ATH_DBG_RESET
, "ah->misc_mode 0x%x\n",
816 if (ah
->misc_mode
!= 0)
817 REG_WRITE(ah
, AR_PCU_MISC
,
818 REG_READ(ah
, AR_PCU_MISC
) | ah
->misc_mode
);
820 if (conf
->channel
&& conf
->channel
->band
== IEEE80211_BAND_5GHZ
)
825 /* As defined by IEEE 802.11-2007 17.3.8.6 */
826 slottime
= ah
->slottime
+ 3 * ah
->coverage_class
;
827 acktimeout
= slottime
+ sifstime
;
830 * Workaround for early ACK timeouts, add an offset to match the
831 * initval's 64us ack timeout value.
832 * This was initially only meant to work around an issue with delayed
833 * BA frames in some implementations, but it has been found to fix ACK
834 * timeout issues in other cases as well.
836 if (conf
->channel
&& conf
->channel
->band
== IEEE80211_BAND_2GHZ
)
837 acktimeout
+= 64 - sifstime
- ah
->slottime
;
839 ath9k_hw_setslottime(ah
, slottime
);
840 ath9k_hw_set_ack_timeout(ah
, acktimeout
);
841 ath9k_hw_set_cts_timeout(ah
, acktimeout
);
842 if (ah
->globaltxtimeout
!= (u32
) -1)
843 ath9k_hw_set_global_txtimeout(ah
, ah
->globaltxtimeout
);
845 EXPORT_SYMBOL(ath9k_hw_init_global_settings
);
847 void ath9k_hw_deinit(struct ath_hw
*ah
)
849 struct ath_common
*common
= ath9k_hw_common(ah
);
851 if (common
->state
< ATH_HW_INITIALIZED
)
854 ath9k_hw_setpower(ah
, ATH9K_PM_FULL_SLEEP
);
857 ath9k_hw_rf_free_ext_banks(ah
);
859 EXPORT_SYMBOL(ath9k_hw_deinit
);
865 u32
ath9k_regd_get_ctl(struct ath_regulatory
*reg
, struct ath9k_channel
*chan
)
867 u32 ctl
= ath_regd_get_band_ctl(reg
, chan
->chan
->band
);
871 else if (IS_CHAN_G(chan
))
879 /****************************************/
880 /* Reset and Channel Switching Routines */
881 /****************************************/
883 static inline void ath9k_hw_set_dma(struct ath_hw
*ah
)
885 struct ath_common
*common
= ath9k_hw_common(ah
);
888 ENABLE_REGWRITE_BUFFER(ah
);
891 * set AHB_MODE not to do cacheline prefetches
893 if (!AR_SREV_9300_20_OR_LATER(ah
)) {
894 regval
= REG_READ(ah
, AR_AHB_MODE
);
895 REG_WRITE(ah
, AR_AHB_MODE
, regval
| AR_AHB_PREFETCH_RD_EN
);
899 * let mac dma reads be in 128 byte chunks
901 regval
= REG_READ(ah
, AR_TXCFG
) & ~AR_TXCFG_DMASZ_MASK
;
902 REG_WRITE(ah
, AR_TXCFG
, regval
| AR_TXCFG_DMASZ_128B
);
904 REGWRITE_BUFFER_FLUSH(ah
);
905 DISABLE_REGWRITE_BUFFER(ah
);
908 * Restore TX Trigger Level to its pre-reset value.
909 * The initial value depends on whether aggregation is enabled, and is
910 * adjusted whenever underruns are detected.
912 if (!AR_SREV_9300_20_OR_LATER(ah
))
913 REG_RMW_FIELD(ah
, AR_TXCFG
, AR_FTRIG
, ah
->tx_trig_level
);
915 ENABLE_REGWRITE_BUFFER(ah
);
918 * let mac dma writes be in 128 byte chunks
920 regval
= REG_READ(ah
, AR_RXCFG
) & ~AR_RXCFG_DMASZ_MASK
;
921 REG_WRITE(ah
, AR_RXCFG
, regval
| AR_RXCFG_DMASZ_128B
);
924 * Setup receive FIFO threshold to hold off TX activities
926 REG_WRITE(ah
, AR_RXFIFO_CFG
, 0x200);
928 if (AR_SREV_9300_20_OR_LATER(ah
)) {
929 REG_RMW_FIELD(ah
, AR_RXBP_THRESH
, AR_RXBP_THRESH_HP
, 0x1);
930 REG_RMW_FIELD(ah
, AR_RXBP_THRESH
, AR_RXBP_THRESH_LP
, 0x1);
932 ath9k_hw_set_rx_bufsize(ah
, common
->rx_bufsize
-
933 ah
->caps
.rx_status_len
);
937 * reduce the number of usable entries in PCU TXBUF to avoid
938 * wrap around issues.
940 if (AR_SREV_9285(ah
)) {
941 /* For AR9285 the number of Fifos are reduced to half.
942 * So set the usable tx buf size also to half to
943 * avoid data/delimiter underruns
945 REG_WRITE(ah
, AR_PCU_TXBUF_CTRL
,
946 AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE
);
947 } else if (!AR_SREV_9271(ah
)) {
948 REG_WRITE(ah
, AR_PCU_TXBUF_CTRL
,
949 AR_PCU_TXBUF_CTRL_USABLE_SIZE
);
952 REGWRITE_BUFFER_FLUSH(ah
);
953 DISABLE_REGWRITE_BUFFER(ah
);
955 if (AR_SREV_9300_20_OR_LATER(ah
))
956 ath9k_hw_reset_txstatus_ring(ah
);
959 static void ath9k_hw_set_operating_mode(struct ath_hw
*ah
, int opmode
)
963 val
= REG_READ(ah
, AR_STA_ID1
);
964 val
&= ~(AR_STA_ID1_STA_AP
| AR_STA_ID1_ADHOC
);
966 case NL80211_IFTYPE_AP
:
967 REG_WRITE(ah
, AR_STA_ID1
, val
| AR_STA_ID1_STA_AP
968 | AR_STA_ID1_KSRCH_MODE
);
969 REG_CLR_BIT(ah
, AR_CFG
, AR_CFG_AP_ADHOC_INDICATION
);
971 case NL80211_IFTYPE_ADHOC
:
972 case NL80211_IFTYPE_MESH_POINT
:
973 REG_WRITE(ah
, AR_STA_ID1
, val
| AR_STA_ID1_ADHOC
974 | AR_STA_ID1_KSRCH_MODE
);
975 REG_SET_BIT(ah
, AR_CFG
, AR_CFG_AP_ADHOC_INDICATION
);
977 case NL80211_IFTYPE_STATION
:
978 case NL80211_IFTYPE_MONITOR
:
979 REG_WRITE(ah
, AR_STA_ID1
, val
| AR_STA_ID1_KSRCH_MODE
);
984 void ath9k_hw_get_delta_slope_vals(struct ath_hw
*ah
, u32 coef_scaled
,
985 u32
*coef_mantissa
, u32
*coef_exponent
)
987 u32 coef_exp
, coef_man
;
989 for (coef_exp
= 31; coef_exp
> 0; coef_exp
--)
990 if ((coef_scaled
>> coef_exp
) & 0x1)
993 coef_exp
= 14 - (coef_exp
- COEF_SCALE_S
);
995 coef_man
= coef_scaled
+ (1 << (COEF_SCALE_S
- coef_exp
- 1));
997 *coef_mantissa
= coef_man
>> (COEF_SCALE_S
- coef_exp
);
998 *coef_exponent
= coef_exp
- 16;
1001 static bool ath9k_hw_set_reset(struct ath_hw
*ah
, int type
)
1006 if (AR_SREV_9100(ah
)) {
1007 u32 val
= REG_READ(ah
, AR_RTC_DERIVED_CLK
);
1008 val
&= ~AR_RTC_DERIVED_CLK_PERIOD
;
1009 val
|= SM(1, AR_RTC_DERIVED_CLK_PERIOD
);
1010 REG_WRITE(ah
, AR_RTC_DERIVED_CLK
, val
);
1011 (void)REG_READ(ah
, AR_RTC_DERIVED_CLK
);
1014 ENABLE_REGWRITE_BUFFER(ah
);
1016 REG_WRITE(ah
, AR_RTC_FORCE_WAKE
, AR_RTC_FORCE_WAKE_EN
|
1017 AR_RTC_FORCE_WAKE_ON_INT
);
1019 if (AR_SREV_9100(ah
)) {
1020 rst_flags
= AR_RTC_RC_MAC_WARM
| AR_RTC_RC_MAC_COLD
|
1021 AR_RTC_RC_COLD_RESET
| AR_RTC_RC_WARM_RESET
;
1023 tmpReg
= REG_READ(ah
, AR_INTR_SYNC_CAUSE
);
1025 (AR_INTR_SYNC_LOCAL_TIMEOUT
|
1026 AR_INTR_SYNC_RADM_CPL_TIMEOUT
)) {
1028 REG_WRITE(ah
, AR_INTR_SYNC_ENABLE
, 0);
1031 if (!AR_SREV_9300_20_OR_LATER(ah
))
1033 REG_WRITE(ah
, AR_RC
, val
);
1035 } else if (!AR_SREV_9300_20_OR_LATER(ah
))
1036 REG_WRITE(ah
, AR_RC
, AR_RC_AHB
);
1038 rst_flags
= AR_RTC_RC_MAC_WARM
;
1039 if (type
== ATH9K_RESET_COLD
)
1040 rst_flags
|= AR_RTC_RC_MAC_COLD
;
1043 REG_WRITE(ah
, AR_RTC_RC
, rst_flags
);
1045 REGWRITE_BUFFER_FLUSH(ah
);
1046 DISABLE_REGWRITE_BUFFER(ah
);
1050 REG_WRITE(ah
, AR_RTC_RC
, 0);
1051 if (!ath9k_hw_wait(ah
, AR_RTC_RC
, AR_RTC_RC_M
, 0, AH_WAIT_TIMEOUT
)) {
1052 ath_print(ath9k_hw_common(ah
), ATH_DBG_RESET
,
1053 "RTC stuck in MAC reset\n");
1057 if (!AR_SREV_9100(ah
))
1058 REG_WRITE(ah
, AR_RC
, 0);
1060 if (AR_SREV_9100(ah
))
1066 static bool ath9k_hw_set_reset_power_on(struct ath_hw
*ah
)
1068 ENABLE_REGWRITE_BUFFER(ah
);
1070 REG_WRITE(ah
, AR_RTC_FORCE_WAKE
, AR_RTC_FORCE_WAKE_EN
|
1071 AR_RTC_FORCE_WAKE_ON_INT
);
1073 if (!AR_SREV_9100(ah
) && !AR_SREV_9300_20_OR_LATER(ah
))
1074 REG_WRITE(ah
, AR_RC
, AR_RC_AHB
);
1076 REG_WRITE(ah
, AR_RTC_RESET
, 0);
1078 REGWRITE_BUFFER_FLUSH(ah
);
1079 DISABLE_REGWRITE_BUFFER(ah
);
1081 if (!AR_SREV_9300_20_OR_LATER(ah
))
1084 if (!AR_SREV_9100(ah
) && !AR_SREV_9300_20_OR_LATER(ah
))
1085 REG_WRITE(ah
, AR_RC
, 0);
1087 REG_WRITE(ah
, AR_RTC_RESET
, 1);
1089 if (!ath9k_hw_wait(ah
,
1094 ath_print(ath9k_hw_common(ah
), ATH_DBG_RESET
,
1095 "RTC not waking up\n");
1099 ath9k_hw_read_revisions(ah
);
1101 return ath9k_hw_set_reset(ah
, ATH9K_RESET_WARM
);
1104 static bool ath9k_hw_set_reset_reg(struct ath_hw
*ah
, u32 type
)
1106 REG_WRITE(ah
, AR_RTC_FORCE_WAKE
,
1107 AR_RTC_FORCE_WAKE_EN
| AR_RTC_FORCE_WAKE_ON_INT
);
1110 case ATH9K_RESET_POWER_ON
:
1111 return ath9k_hw_set_reset_power_on(ah
);
1112 case ATH9K_RESET_WARM
:
1113 case ATH9K_RESET_COLD
:
1114 return ath9k_hw_set_reset(ah
, type
);
1120 static bool ath9k_hw_chip_reset(struct ath_hw
*ah
,
1121 struct ath9k_channel
*chan
)
1123 if (AR_SREV_9280(ah
) && ah
->eep_ops
->get_eeprom(ah
, EEP_OL_PWRCTRL
)) {
1124 if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_POWER_ON
))
1126 } else if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_WARM
))
1129 if (!ath9k_hw_setpower(ah
, ATH9K_PM_AWAKE
))
1132 ah
->chip_fullsleep
= false;
1133 ath9k_hw_init_pll(ah
, chan
);
1134 ath9k_hw_set_rfmode(ah
, chan
);
1139 static bool ath9k_hw_channel_change(struct ath_hw
*ah
,
1140 struct ath9k_channel
*chan
)
1142 struct ath_regulatory
*regulatory
= ath9k_hw_regulatory(ah
);
1143 struct ath_common
*common
= ath9k_hw_common(ah
);
1144 struct ieee80211_channel
*channel
= chan
->chan
;
1148 for (qnum
= 0; qnum
< AR_NUM_QCU
; qnum
++) {
1149 if (ath9k_hw_numtxpending(ah
, qnum
)) {
1150 ath_print(common
, ATH_DBG_QUEUE
,
1151 "Transmit frames pending on "
1152 "queue %d\n", qnum
);
1157 if (!ath9k_hw_rfbus_req(ah
)) {
1158 ath_print(common
, ATH_DBG_FATAL
,
1159 "Could not kill baseband RX\n");
1163 ath9k_hw_set_channel_regs(ah
, chan
);
1165 r
= ath9k_hw_rf_set_freq(ah
, chan
);
1167 ath_print(common
, ATH_DBG_FATAL
,
1168 "Failed to set channel\n");
1172 ah
->eep_ops
->set_txpower(ah
, chan
,
1173 ath9k_regd_get_ctl(regulatory
, chan
),
1174 channel
->max_antenna_gain
* 2,
1175 channel
->max_power
* 2,
1176 min((u32
) MAX_RATE_POWER
,
1177 (u32
) regulatory
->power_limit
));
1179 ath9k_hw_rfbus_done(ah
);
1181 if (IS_CHAN_OFDM(chan
) || IS_CHAN_HT(chan
))
1182 ath9k_hw_set_delta_slope(ah
, chan
);
1184 ath9k_hw_spur_mitigate_freq(ah
, chan
);
1186 if (!chan
->oneTimeCalsDone
)
1187 chan
->oneTimeCalsDone
= true;
1192 bool ath9k_hw_check_alive(struct ath_hw
*ah
)
1197 if (AR_SREV_9285_10_OR_LATER(ah
))
1201 reg
= REG_READ(ah
, AR_OBS_BUS_1
);
1203 if ((reg
& 0x7E7FFFEF) == 0x00702400)
1206 switch (reg
& 0x7E000B00) {
1214 } while (count
-- > 0);
1218 EXPORT_SYMBOL(ath9k_hw_check_alive
);
1220 int ath9k_hw_reset(struct ath_hw
*ah
, struct ath9k_channel
*chan
,
1221 bool bChannelChange
)
1223 struct ath_common
*common
= ath9k_hw_common(ah
);
1225 struct ath9k_channel
*curchan
= ah
->curchan
;
1231 ah
->txchainmask
= common
->tx_chainmask
;
1232 ah
->rxchainmask
= common
->rx_chainmask
;
1234 if (!ah
->chip_fullsleep
) {
1235 ath9k_hw_abortpcurecv(ah
);
1236 if (!ath9k_hw_stopdmarecv(ah
)) {
1237 ath_print(common
, ATH_DBG_XMIT
,
1238 "Failed to stop receive dma\n");
1239 bChannelChange
= false;
1243 if (!ath9k_hw_setpower(ah
, ATH9K_PM_AWAKE
))
1246 if (curchan
&& !ah
->chip_fullsleep
)
1247 ath9k_hw_getnf(ah
, curchan
);
1249 if (bChannelChange
&&
1250 (ah
->chip_fullsleep
!= true) &&
1251 (ah
->curchan
!= NULL
) &&
1252 (chan
->channel
!= ah
->curchan
->channel
) &&
1253 ((chan
->channelFlags
& CHANNEL_ALL
) ==
1254 (ah
->curchan
->channelFlags
& CHANNEL_ALL
)) &&
1255 !AR_SREV_9280(ah
)) {
1257 if (ath9k_hw_channel_change(ah
, chan
)) {
1258 ath9k_hw_loadnf(ah
, ah
->curchan
);
1259 ath9k_hw_start_nfcal(ah
);
1264 saveDefAntenna
= REG_READ(ah
, AR_DEF_ANTENNA
);
1265 if (saveDefAntenna
== 0)
1268 macStaId1
= REG_READ(ah
, AR_STA_ID1
) & AR_STA_ID1_BASE_RATE_11B
;
1270 /* For chips on which RTC reset is done, save TSF before it gets cleared */
1271 if (AR_SREV_9100(ah
) ||
1272 (AR_SREV_9280(ah
) && ah
->eep_ops
->get_eeprom(ah
, EEP_OL_PWRCTRL
)))
1273 tsf
= ath9k_hw_gettsf64(ah
);
1275 saveLedState
= REG_READ(ah
, AR_CFG_LED
) &
1276 (AR_CFG_LED_ASSOC_CTL
| AR_CFG_LED_MODE_SEL
|
1277 AR_CFG_LED_BLINK_THRESH_SEL
| AR_CFG_LED_BLINK_SLOW
);
1279 ath9k_hw_mark_phy_inactive(ah
);
1281 /* Only required on the first reset */
1282 if (AR_SREV_9271(ah
) && ah
->htc_reset_init
) {
1284 AR9271_RESET_POWER_DOWN_CONTROL
,
1285 AR9271_RADIO_RF_RST
);
1289 if (!ath9k_hw_chip_reset(ah
, chan
)) {
1290 ath_print(common
, ATH_DBG_FATAL
, "Chip reset failed\n");
1294 /* Only required on the first reset */
1295 if (AR_SREV_9271(ah
) && ah
->htc_reset_init
) {
1296 ah
->htc_reset_init
= false;
1298 AR9271_RESET_POWER_DOWN_CONTROL
,
1299 AR9271_GATE_MAC_CTL
);
1305 ath9k_hw_settsf64(ah
, tsf
);
1307 if (AR_SREV_9280_10_OR_LATER(ah
))
1308 REG_SET_BIT(ah
, AR_GPIO_INPUT_EN_VAL
, AR_GPIO_JTAG_DISABLE
);
1310 r
= ath9k_hw_process_ini(ah
, chan
);
1315 * Some AR91xx SoC devices frequently fail to accept TSF writes
1316 * right after the chip reset. When that happens, write a new
1317 * value after the initvals have been applied, with an offset
1318 * based on measured time difference
1320 if (AR_SREV_9100(ah
) && (ath9k_hw_gettsf64(ah
) < tsf
)) {
1322 ath9k_hw_settsf64(ah
, tsf
);
1325 /* Setup MFP options for CCMP */
1326 if (AR_SREV_9280_20_OR_LATER(ah
)) {
1327 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
1328 * frames when constructing CCMP AAD. */
1329 REG_RMW_FIELD(ah
, AR_AES_MUTE_MASK1
, AR_AES_MUTE_MASK1_FC_MGMT
,
1331 ah
->sw_mgmt_crypto
= false;
1332 } else if (AR_SREV_9160_10_OR_LATER(ah
)) {
1333 /* Disable hardware crypto for management frames */
1334 REG_CLR_BIT(ah
, AR_PCU_MISC_MODE2
,
1335 AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE
);
1336 REG_SET_BIT(ah
, AR_PCU_MISC_MODE2
,
1337 AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT
);
1338 ah
->sw_mgmt_crypto
= true;
1340 ah
->sw_mgmt_crypto
= true;
1342 if (IS_CHAN_OFDM(chan
) || IS_CHAN_HT(chan
))
1343 ath9k_hw_set_delta_slope(ah
, chan
);
1345 ath9k_hw_spur_mitigate_freq(ah
, chan
);
1346 ah
->eep_ops
->set_board_values(ah
, chan
);
1348 ath9k_hw_set_operating_mode(ah
, ah
->opmode
);
1350 ENABLE_REGWRITE_BUFFER(ah
);
1352 REG_WRITE(ah
, AR_STA_ID0
, get_unaligned_le32(common
->macaddr
));
1353 REG_WRITE(ah
, AR_STA_ID1
, get_unaligned_le16(common
->macaddr
+ 4)
1355 | AR_STA_ID1_RTS_USE_DEF
1357 ack_6mb
? AR_STA_ID1_ACKCTS_6MB
: 0)
1358 | ah
->sta_id1_defaults
);
1359 ath_hw_setbssidmask(common
);
1360 REG_WRITE(ah
, AR_DEF_ANTENNA
, saveDefAntenna
);
1361 ath9k_hw_write_associd(ah
);
1362 REG_WRITE(ah
, AR_ISR
, ~0);
1363 REG_WRITE(ah
, AR_RSSI_THR
, INIT_RSSI_THR
);
1365 REGWRITE_BUFFER_FLUSH(ah
);
1366 DISABLE_REGWRITE_BUFFER(ah
);
1368 r
= ath9k_hw_rf_set_freq(ah
, chan
);
1372 ENABLE_REGWRITE_BUFFER(ah
);
1374 for (i
= 0; i
< AR_NUM_DCU
; i
++)
1375 REG_WRITE(ah
, AR_DQCUMASK(i
), 1 << i
);
1377 REGWRITE_BUFFER_FLUSH(ah
);
1378 DISABLE_REGWRITE_BUFFER(ah
);
1381 for (i
= 0; i
< ah
->caps
.total_queues
; i
++)
1382 ath9k_hw_resettxqueue(ah
, i
);
1384 ath9k_hw_init_interrupt_masks(ah
, ah
->opmode
);
1385 ath9k_hw_init_qos(ah
);
1387 if (ah
->caps
.hw_caps
& ATH9K_HW_CAP_RFSILENT
)
1388 ath9k_enable_rfkill(ah
);
1390 ath9k_hw_init_global_settings(ah
);
1392 if (!AR_SREV_9300_20_OR_LATER(ah
)) {
1393 ar9002_hw_enable_async_fifo(ah
);
1394 ar9002_hw_enable_wep_aggregation(ah
);
1397 REG_WRITE(ah
, AR_STA_ID1
,
1398 REG_READ(ah
, AR_STA_ID1
) | AR_STA_ID1_PRESERVE_SEQNUM
);
1400 ath9k_hw_set_dma(ah
);
1402 REG_WRITE(ah
, AR_OBS
, 8);
1404 if (ah
->config
.rx_intr_mitigation
) {
1405 REG_RMW_FIELD(ah
, AR_RIMT
, AR_RIMT_LAST
, 500);
1406 REG_RMW_FIELD(ah
, AR_RIMT
, AR_RIMT_FIRST
, 2000);
1409 if (ah
->config
.tx_intr_mitigation
) {
1410 REG_RMW_FIELD(ah
, AR_TIMT
, AR_TIMT_LAST
, 300);
1411 REG_RMW_FIELD(ah
, AR_TIMT
, AR_TIMT_FIRST
, 750);
1414 ath9k_hw_init_bb(ah
, chan
);
1416 if (!ath9k_hw_init_cal(ah
, chan
))
1419 ENABLE_REGWRITE_BUFFER(ah
);
1421 ath9k_hw_restore_chainmask(ah
);
1422 REG_WRITE(ah
, AR_CFG_LED
, saveLedState
| AR_CFG_SCLK_32KHZ
);
1424 REGWRITE_BUFFER_FLUSH(ah
);
1425 DISABLE_REGWRITE_BUFFER(ah
);
1428 * For big endian systems turn on swapping for descriptors
1430 if (AR_SREV_9100(ah
)) {
1432 mask
= REG_READ(ah
, AR_CFG
);
1433 if (mask
& (AR_CFG_SWRB
| AR_CFG_SWTB
| AR_CFG_SWRG
)) {
1434 ath_print(common
, ATH_DBG_RESET
,
1435 "CFG Byte Swap Set 0x%x\n", mask
);
1438 INIT_CONFIG_STATUS
| AR_CFG_SWRB
| AR_CFG_SWTB
;
1439 REG_WRITE(ah
, AR_CFG
, mask
);
1440 ath_print(common
, ATH_DBG_RESET
,
1441 "Setting CFG 0x%x\n", REG_READ(ah
, AR_CFG
));
1444 /* Configure AR9271 target WLAN */
1445 if (AR_SREV_9271(ah
))
1446 REG_WRITE(ah
, AR_CFG
, AR_CFG_SWRB
| AR_CFG_SWTB
);
1449 REG_WRITE(ah
, AR_CFG
, AR_CFG_SWTD
| AR_CFG_SWRD
);
1453 if (ah
->btcoex_hw
.enabled
)
1454 ath9k_hw_btcoex_enable(ah
);
1456 if (AR_SREV_9300_20_OR_LATER(ah
)) {
1457 ath9k_hw_loadnf(ah
, curchan
);
1458 ath9k_hw_start_nfcal(ah
);
1463 EXPORT_SYMBOL(ath9k_hw_reset
);
1465 /************************/
1466 /* Key Cache Management */
1467 /************************/
1469 bool ath9k_hw_keyreset(struct ath_hw
*ah
, u16 entry
)
1473 if (entry
>= ah
->caps
.keycache_size
) {
1474 ath_print(ath9k_hw_common(ah
), ATH_DBG_FATAL
,
1475 "keychache entry %u out of range\n", entry
);
1479 keyType
= REG_READ(ah
, AR_KEYTABLE_TYPE(entry
));
1481 REG_WRITE(ah
, AR_KEYTABLE_KEY0(entry
), 0);
1482 REG_WRITE(ah
, AR_KEYTABLE_KEY1(entry
), 0);
1483 REG_WRITE(ah
, AR_KEYTABLE_KEY2(entry
), 0);
1484 REG_WRITE(ah
, AR_KEYTABLE_KEY3(entry
), 0);
1485 REG_WRITE(ah
, AR_KEYTABLE_KEY4(entry
), 0);
1486 REG_WRITE(ah
, AR_KEYTABLE_TYPE(entry
), AR_KEYTABLE_TYPE_CLR
);
1487 REG_WRITE(ah
, AR_KEYTABLE_MAC0(entry
), 0);
1488 REG_WRITE(ah
, AR_KEYTABLE_MAC1(entry
), 0);
1490 if (keyType
== AR_KEYTABLE_TYPE_TKIP
&& ATH9K_IS_MIC_ENABLED(ah
)) {
1491 u16 micentry
= entry
+ 64;
1493 REG_WRITE(ah
, AR_KEYTABLE_KEY0(micentry
), 0);
1494 REG_WRITE(ah
, AR_KEYTABLE_KEY1(micentry
), 0);
1495 REG_WRITE(ah
, AR_KEYTABLE_KEY2(micentry
), 0);
1496 REG_WRITE(ah
, AR_KEYTABLE_KEY3(micentry
), 0);
1502 EXPORT_SYMBOL(ath9k_hw_keyreset
);
1504 bool ath9k_hw_keysetmac(struct ath_hw
*ah
, u16 entry
, const u8
*mac
)
1508 if (entry
>= ah
->caps
.keycache_size
) {
1509 ath_print(ath9k_hw_common(ah
), ATH_DBG_FATAL
,
1510 "keychache entry %u out of range\n", entry
);
1515 macHi
= (mac
[5] << 8) | mac
[4];
1516 macLo
= (mac
[3] << 24) |
1521 macLo
|= (macHi
& 1) << 31;
1526 REG_WRITE(ah
, AR_KEYTABLE_MAC0(entry
), macLo
);
1527 REG_WRITE(ah
, AR_KEYTABLE_MAC1(entry
), macHi
| AR_KEYTABLE_VALID
);
1531 EXPORT_SYMBOL(ath9k_hw_keysetmac
);
1533 bool ath9k_hw_set_keycache_entry(struct ath_hw
*ah
, u16 entry
,
1534 const struct ath9k_keyval
*k
,
1537 const struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
1538 struct ath_common
*common
= ath9k_hw_common(ah
);
1539 u32 key0
, key1
, key2
, key3
, key4
;
1542 if (entry
>= pCap
->keycache_size
) {
1543 ath_print(common
, ATH_DBG_FATAL
,
1544 "keycache entry %u out of range\n", entry
);
1548 switch (k
->kv_type
) {
1549 case ATH9K_CIPHER_AES_OCB
:
1550 keyType
= AR_KEYTABLE_TYPE_AES
;
1552 case ATH9K_CIPHER_AES_CCM
:
1553 if (!(pCap
->hw_caps
& ATH9K_HW_CAP_CIPHER_AESCCM
)) {
1554 ath_print(common
, ATH_DBG_ANY
,
1555 "AES-CCM not supported by mac rev 0x%x\n",
1556 ah
->hw_version
.macRev
);
1559 keyType
= AR_KEYTABLE_TYPE_CCM
;
1561 case ATH9K_CIPHER_TKIP
:
1562 keyType
= AR_KEYTABLE_TYPE_TKIP
;
1563 if (ATH9K_IS_MIC_ENABLED(ah
)
1564 && entry
+ 64 >= pCap
->keycache_size
) {
1565 ath_print(common
, ATH_DBG_ANY
,
1566 "entry %u inappropriate for TKIP\n", entry
);
1570 case ATH9K_CIPHER_WEP
:
1571 if (k
->kv_len
< WLAN_KEY_LEN_WEP40
) {
1572 ath_print(common
, ATH_DBG_ANY
,
1573 "WEP key length %u too small\n", k
->kv_len
);
1576 if (k
->kv_len
<= WLAN_KEY_LEN_WEP40
)
1577 keyType
= AR_KEYTABLE_TYPE_40
;
1578 else if (k
->kv_len
<= WLAN_KEY_LEN_WEP104
)
1579 keyType
= AR_KEYTABLE_TYPE_104
;
1581 keyType
= AR_KEYTABLE_TYPE_128
;
1583 case ATH9K_CIPHER_CLR
:
1584 keyType
= AR_KEYTABLE_TYPE_CLR
;
1587 ath_print(common
, ATH_DBG_FATAL
,
1588 "cipher %u not supported\n", k
->kv_type
);
1592 key0
= get_unaligned_le32(k
->kv_val
+ 0);
1593 key1
= get_unaligned_le16(k
->kv_val
+ 4);
1594 key2
= get_unaligned_le32(k
->kv_val
+ 6);
1595 key3
= get_unaligned_le16(k
->kv_val
+ 10);
1596 key4
= get_unaligned_le32(k
->kv_val
+ 12);
1597 if (k
->kv_len
<= WLAN_KEY_LEN_WEP104
)
1601 * Note: Key cache registers access special memory area that requires
1602 * two 32-bit writes to actually update the values in the internal
1603 * memory. Consequently, the exact order and pairs used here must be
1607 if (keyType
== AR_KEYTABLE_TYPE_TKIP
&& ATH9K_IS_MIC_ENABLED(ah
)) {
1608 u16 micentry
= entry
+ 64;
1611 * Write inverted key[47:0] first to avoid Michael MIC errors
1612 * on frames that could be sent or received at the same time.
1613 * The correct key will be written in the end once everything
1616 REG_WRITE(ah
, AR_KEYTABLE_KEY0(entry
), ~key0
);
1617 REG_WRITE(ah
, AR_KEYTABLE_KEY1(entry
), ~key1
);
1619 /* Write key[95:48] */
1620 REG_WRITE(ah
, AR_KEYTABLE_KEY2(entry
), key2
);
1621 REG_WRITE(ah
, AR_KEYTABLE_KEY3(entry
), key3
);
1623 /* Write key[127:96] and key type */
1624 REG_WRITE(ah
, AR_KEYTABLE_KEY4(entry
), key4
);
1625 REG_WRITE(ah
, AR_KEYTABLE_TYPE(entry
), keyType
);
1627 /* Write MAC address for the entry */
1628 (void) ath9k_hw_keysetmac(ah
, entry
, mac
);
1630 if (ah
->misc_mode
& AR_PCU_MIC_NEW_LOC_ENA
) {
1632 * TKIP uses two key cache entries:
1633 * Michael MIC TX/RX keys in the same key cache entry
1634 * (idx = main index + 64):
1635 * key0 [31:0] = RX key [31:0]
1636 * key1 [15:0] = TX key [31:16]
1637 * key1 [31:16] = reserved
1638 * key2 [31:0] = RX key [63:32]
1639 * key3 [15:0] = TX key [15:0]
1640 * key3 [31:16] = reserved
1641 * key4 [31:0] = TX key [63:32]
1643 u32 mic0
, mic1
, mic2
, mic3
, mic4
;
1645 mic0
= get_unaligned_le32(k
->kv_mic
+ 0);
1646 mic2
= get_unaligned_le32(k
->kv_mic
+ 4);
1647 mic1
= get_unaligned_le16(k
->kv_txmic
+ 2) & 0xffff;
1648 mic3
= get_unaligned_le16(k
->kv_txmic
+ 0) & 0xffff;
1649 mic4
= get_unaligned_le32(k
->kv_txmic
+ 4);
1651 /* Write RX[31:0] and TX[31:16] */
1652 REG_WRITE(ah
, AR_KEYTABLE_KEY0(micentry
), mic0
);
1653 REG_WRITE(ah
, AR_KEYTABLE_KEY1(micentry
), mic1
);
1655 /* Write RX[63:32] and TX[15:0] */
1656 REG_WRITE(ah
, AR_KEYTABLE_KEY2(micentry
), mic2
);
1657 REG_WRITE(ah
, AR_KEYTABLE_KEY3(micentry
), mic3
);
1659 /* Write TX[63:32] and keyType(reserved) */
1660 REG_WRITE(ah
, AR_KEYTABLE_KEY4(micentry
), mic4
);
1661 REG_WRITE(ah
, AR_KEYTABLE_TYPE(micentry
),
1662 AR_KEYTABLE_TYPE_CLR
);
1666 * TKIP uses four key cache entries (two for group
1668 * Michael MIC TX/RX keys are in different key cache
1669 * entries (idx = main index + 64 for TX and
1670 * main index + 32 + 96 for RX):
1671 * key0 [31:0] = TX/RX MIC key [31:0]
1672 * key1 [31:0] = reserved
1673 * key2 [31:0] = TX/RX MIC key [63:32]
1674 * key3 [31:0] = reserved
1675 * key4 [31:0] = reserved
1677 * Upper layer code will call this function separately
1678 * for TX and RX keys when these registers offsets are
1683 mic0
= get_unaligned_le32(k
->kv_mic
+ 0);
1684 mic2
= get_unaligned_le32(k
->kv_mic
+ 4);
1686 /* Write MIC key[31:0] */
1687 REG_WRITE(ah
, AR_KEYTABLE_KEY0(micentry
), mic0
);
1688 REG_WRITE(ah
, AR_KEYTABLE_KEY1(micentry
), 0);
1690 /* Write MIC key[63:32] */
1691 REG_WRITE(ah
, AR_KEYTABLE_KEY2(micentry
), mic2
);
1692 REG_WRITE(ah
, AR_KEYTABLE_KEY3(micentry
), 0);
1694 /* Write TX[63:32] and keyType(reserved) */
1695 REG_WRITE(ah
, AR_KEYTABLE_KEY4(micentry
), 0);
1696 REG_WRITE(ah
, AR_KEYTABLE_TYPE(micentry
),
1697 AR_KEYTABLE_TYPE_CLR
);
1700 /* MAC address registers are reserved for the MIC entry */
1701 REG_WRITE(ah
, AR_KEYTABLE_MAC0(micentry
), 0);
1702 REG_WRITE(ah
, AR_KEYTABLE_MAC1(micentry
), 0);
1705 * Write the correct (un-inverted) key[47:0] last to enable
1706 * TKIP now that all other registers are set with correct
1709 REG_WRITE(ah
, AR_KEYTABLE_KEY0(entry
), key0
);
1710 REG_WRITE(ah
, AR_KEYTABLE_KEY1(entry
), key1
);
1712 /* Write key[47:0] */
1713 REG_WRITE(ah
, AR_KEYTABLE_KEY0(entry
), key0
);
1714 REG_WRITE(ah
, AR_KEYTABLE_KEY1(entry
), key1
);
1716 /* Write key[95:48] */
1717 REG_WRITE(ah
, AR_KEYTABLE_KEY2(entry
), key2
);
1718 REG_WRITE(ah
, AR_KEYTABLE_KEY3(entry
), key3
);
1720 /* Write key[127:96] and key type */
1721 REG_WRITE(ah
, AR_KEYTABLE_KEY4(entry
), key4
);
1722 REG_WRITE(ah
, AR_KEYTABLE_TYPE(entry
), keyType
);
1724 /* Write MAC address for the entry */
1725 (void) ath9k_hw_keysetmac(ah
, entry
, mac
);
1730 EXPORT_SYMBOL(ath9k_hw_set_keycache_entry
);
1732 bool ath9k_hw_keyisvalid(struct ath_hw
*ah
, u16 entry
)
1734 if (entry
< ah
->caps
.keycache_size
) {
1735 u32 val
= REG_READ(ah
, AR_KEYTABLE_MAC1(entry
));
1736 if (val
& AR_KEYTABLE_VALID
)
1741 EXPORT_SYMBOL(ath9k_hw_keyisvalid
);
1743 /******************************/
1744 /* Power Management (Chipset) */
1745 /******************************/
1748 * Notify Power Mgt is disabled in self-generated frames.
1749 * If requested, force chip to sleep.
1751 static void ath9k_set_power_sleep(struct ath_hw
*ah
, int setChip
)
1753 REG_SET_BIT(ah
, AR_STA_ID1
, AR_STA_ID1_PWR_SAV
);
1756 * Clear the RTC force wake bit to allow the
1757 * mac to go to sleep.
1759 REG_CLR_BIT(ah
, AR_RTC_FORCE_WAKE
,
1760 AR_RTC_FORCE_WAKE_EN
);
1761 if (!AR_SREV_9100(ah
) && !AR_SREV_9300_20_OR_LATER(ah
))
1762 REG_WRITE(ah
, AR_RC
, AR_RC_AHB
| AR_RC_HOSTIF
);
1764 /* Shutdown chip. Active low */
1765 if (!AR_SREV_5416(ah
) && !AR_SREV_9271(ah
))
1766 REG_CLR_BIT(ah
, (AR_RTC_RESET
),
1772 * Notify Power Management is enabled in self-generating
1773 * frames. If request, set power mode of chip to
1774 * auto/normal. Duration in units of 128us (1/8 TU).
1776 static void ath9k_set_power_network_sleep(struct ath_hw
*ah
, int setChip
)
1778 REG_SET_BIT(ah
, AR_STA_ID1
, AR_STA_ID1_PWR_SAV
);
1780 struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
1782 if (!(pCap
->hw_caps
& ATH9K_HW_CAP_AUTOSLEEP
)) {
1783 /* Set WakeOnInterrupt bit; clear ForceWake bit */
1784 REG_WRITE(ah
, AR_RTC_FORCE_WAKE
,
1785 AR_RTC_FORCE_WAKE_ON_INT
);
1788 * Clear the RTC force wake bit to allow the
1789 * mac to go to sleep.
1791 REG_CLR_BIT(ah
, AR_RTC_FORCE_WAKE
,
1792 AR_RTC_FORCE_WAKE_EN
);
1797 static bool ath9k_hw_set_power_awake(struct ath_hw
*ah
, int setChip
)
1803 if ((REG_READ(ah
, AR_RTC_STATUS
) &
1804 AR_RTC_STATUS_M
) == AR_RTC_STATUS_SHUTDOWN
) {
1805 if (ath9k_hw_set_reset_reg(ah
,
1806 ATH9K_RESET_POWER_ON
) != true) {
1809 if (!AR_SREV_9300_20_OR_LATER(ah
))
1810 ath9k_hw_init_pll(ah
, NULL
);
1812 if (AR_SREV_9100(ah
))
1813 REG_SET_BIT(ah
, AR_RTC_RESET
,
1816 REG_SET_BIT(ah
, AR_RTC_FORCE_WAKE
,
1817 AR_RTC_FORCE_WAKE_EN
);
1820 for (i
= POWER_UP_TIME
/ 50; i
> 0; i
--) {
1821 val
= REG_READ(ah
, AR_RTC_STATUS
) & AR_RTC_STATUS_M
;
1822 if (val
== AR_RTC_STATUS_ON
)
1825 REG_SET_BIT(ah
, AR_RTC_FORCE_WAKE
,
1826 AR_RTC_FORCE_WAKE_EN
);
1829 ath_print(ath9k_hw_common(ah
), ATH_DBG_FATAL
,
1830 "Failed to wakeup in %uus\n",
1831 POWER_UP_TIME
/ 20);
1836 REG_CLR_BIT(ah
, AR_STA_ID1
, AR_STA_ID1_PWR_SAV
);
1841 bool ath9k_hw_setpower(struct ath_hw
*ah
, enum ath9k_power_mode mode
)
1843 struct ath_common
*common
= ath9k_hw_common(ah
);
1844 int status
= true, setChip
= true;
1845 static const char *modes
[] = {
1852 if (ah
->power_mode
== mode
)
1855 ath_print(common
, ATH_DBG_RESET
, "%s -> %s\n",
1856 modes
[ah
->power_mode
], modes
[mode
]);
1859 case ATH9K_PM_AWAKE
:
1860 status
= ath9k_hw_set_power_awake(ah
, setChip
);
1862 case ATH9K_PM_FULL_SLEEP
:
1863 ath9k_set_power_sleep(ah
, setChip
);
1864 ah
->chip_fullsleep
= true;
1866 case ATH9K_PM_NETWORK_SLEEP
:
1867 ath9k_set_power_network_sleep(ah
, setChip
);
1870 ath_print(common
, ATH_DBG_FATAL
,
1871 "Unknown power mode %u\n", mode
);
1874 ah
->power_mode
= mode
;
1878 EXPORT_SYMBOL(ath9k_hw_setpower
);
1880 /*******************/
1881 /* Beacon Handling */
1882 /*******************/
1884 void ath9k_hw_beaconinit(struct ath_hw
*ah
, u32 next_beacon
, u32 beacon_period
)
1888 ah
->beacon_interval
= beacon_period
;
1890 ENABLE_REGWRITE_BUFFER(ah
);
1892 switch (ah
->opmode
) {
1893 case NL80211_IFTYPE_STATION
:
1894 case NL80211_IFTYPE_MONITOR
:
1895 REG_WRITE(ah
, AR_NEXT_TBTT_TIMER
, TU_TO_USEC(next_beacon
));
1896 REG_WRITE(ah
, AR_NEXT_DMA_BEACON_ALERT
, 0xffff);
1897 REG_WRITE(ah
, AR_NEXT_SWBA
, 0x7ffff);
1898 flags
|= AR_TBTT_TIMER_EN
;
1900 case NL80211_IFTYPE_ADHOC
:
1901 case NL80211_IFTYPE_MESH_POINT
:
1902 REG_SET_BIT(ah
, AR_TXCFG
,
1903 AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY
);
1904 REG_WRITE(ah
, AR_NEXT_NDP_TIMER
,
1905 TU_TO_USEC(next_beacon
+
1906 (ah
->atim_window
? ah
->
1908 flags
|= AR_NDP_TIMER_EN
;
1909 case NL80211_IFTYPE_AP
:
1910 REG_WRITE(ah
, AR_NEXT_TBTT_TIMER
, TU_TO_USEC(next_beacon
));
1911 REG_WRITE(ah
, AR_NEXT_DMA_BEACON_ALERT
,
1912 TU_TO_USEC(next_beacon
-
1914 dma_beacon_response_time
));
1915 REG_WRITE(ah
, AR_NEXT_SWBA
,
1916 TU_TO_USEC(next_beacon
-
1918 sw_beacon_response_time
));
1920 AR_TBTT_TIMER_EN
| AR_DBA_TIMER_EN
| AR_SWBA_TIMER_EN
;
1923 ath_print(ath9k_hw_common(ah
), ATH_DBG_BEACON
,
1924 "%s: unsupported opmode: %d\n",
1925 __func__
, ah
->opmode
);
1930 REG_WRITE(ah
, AR_BEACON_PERIOD
, TU_TO_USEC(beacon_period
));
1931 REG_WRITE(ah
, AR_DMA_BEACON_PERIOD
, TU_TO_USEC(beacon_period
));
1932 REG_WRITE(ah
, AR_SWBA_PERIOD
, TU_TO_USEC(beacon_period
));
1933 REG_WRITE(ah
, AR_NDP_PERIOD
, TU_TO_USEC(beacon_period
));
1935 REGWRITE_BUFFER_FLUSH(ah
);
1936 DISABLE_REGWRITE_BUFFER(ah
);
1938 beacon_period
&= ~ATH9K_BEACON_ENA
;
1939 if (beacon_period
& ATH9K_BEACON_RESET_TSF
) {
1940 ath9k_hw_reset_tsf(ah
);
1943 REG_SET_BIT(ah
, AR_TIMER_MODE
, flags
);
1945 EXPORT_SYMBOL(ath9k_hw_beaconinit
);
1947 void ath9k_hw_set_sta_beacon_timers(struct ath_hw
*ah
,
1948 const struct ath9k_beacon_state
*bs
)
1950 u32 nextTbtt
, beaconintval
, dtimperiod
, beacontimeout
;
1951 struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
1952 struct ath_common
*common
= ath9k_hw_common(ah
);
1954 ENABLE_REGWRITE_BUFFER(ah
);
1956 REG_WRITE(ah
, AR_NEXT_TBTT_TIMER
, TU_TO_USEC(bs
->bs_nexttbtt
));
1958 REG_WRITE(ah
, AR_BEACON_PERIOD
,
1959 TU_TO_USEC(bs
->bs_intval
& ATH9K_BEACON_PERIOD
));
1960 REG_WRITE(ah
, AR_DMA_BEACON_PERIOD
,
1961 TU_TO_USEC(bs
->bs_intval
& ATH9K_BEACON_PERIOD
));
1963 REGWRITE_BUFFER_FLUSH(ah
);
1964 DISABLE_REGWRITE_BUFFER(ah
);
1966 REG_RMW_FIELD(ah
, AR_RSSI_THR
,
1967 AR_RSSI_THR_BM_THR
, bs
->bs_bmissthreshold
);
1969 beaconintval
= bs
->bs_intval
& ATH9K_BEACON_PERIOD
;
1971 if (bs
->bs_sleepduration
> beaconintval
)
1972 beaconintval
= bs
->bs_sleepduration
;
1974 dtimperiod
= bs
->bs_dtimperiod
;
1975 if (bs
->bs_sleepduration
> dtimperiod
)
1976 dtimperiod
= bs
->bs_sleepduration
;
1978 if (beaconintval
== dtimperiod
)
1979 nextTbtt
= bs
->bs_nextdtim
;
1981 nextTbtt
= bs
->bs_nexttbtt
;
1983 ath_print(common
, ATH_DBG_BEACON
, "next DTIM %d\n", bs
->bs_nextdtim
);
1984 ath_print(common
, ATH_DBG_BEACON
, "next beacon %d\n", nextTbtt
);
1985 ath_print(common
, ATH_DBG_BEACON
, "beacon period %d\n", beaconintval
);
1986 ath_print(common
, ATH_DBG_BEACON
, "DTIM period %d\n", dtimperiod
);
1988 ENABLE_REGWRITE_BUFFER(ah
);
1990 REG_WRITE(ah
, AR_NEXT_DTIM
,
1991 TU_TO_USEC(bs
->bs_nextdtim
- SLEEP_SLOP
));
1992 REG_WRITE(ah
, AR_NEXT_TIM
, TU_TO_USEC(nextTbtt
- SLEEP_SLOP
));
1994 REG_WRITE(ah
, AR_SLEEP1
,
1995 SM((CAB_TIMEOUT_VAL
<< 3), AR_SLEEP1_CAB_TIMEOUT
)
1996 | AR_SLEEP1_ASSUME_DTIM
);
1998 if (pCap
->hw_caps
& ATH9K_HW_CAP_AUTOSLEEP
)
1999 beacontimeout
= (BEACON_TIMEOUT_VAL
<< 3);
2001 beacontimeout
= MIN_BEACON_TIMEOUT_VAL
;
2003 REG_WRITE(ah
, AR_SLEEP2
,
2004 SM(beacontimeout
, AR_SLEEP2_BEACON_TIMEOUT
));
2006 REG_WRITE(ah
, AR_TIM_PERIOD
, TU_TO_USEC(beaconintval
));
2007 REG_WRITE(ah
, AR_DTIM_PERIOD
, TU_TO_USEC(dtimperiod
));
2009 REGWRITE_BUFFER_FLUSH(ah
);
2010 DISABLE_REGWRITE_BUFFER(ah
);
2012 REG_SET_BIT(ah
, AR_TIMER_MODE
,
2013 AR_TBTT_TIMER_EN
| AR_TIM_TIMER_EN
|
2016 /* TSF Out of Range Threshold */
2017 REG_WRITE(ah
, AR_TSFOOR_THRESHOLD
, bs
->bs_tsfoor_threshold
);
2019 EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers
);
2021 /*******************/
2022 /* HW Capabilities */
2023 /*******************/
2025 int ath9k_hw_fill_cap_info(struct ath_hw
*ah
)
2027 struct ath9k_hw_capabilities
*pCap
= &ah
->caps
;
2028 struct ath_regulatory
*regulatory
= ath9k_hw_regulatory(ah
);
2029 struct ath_common
*common
= ath9k_hw_common(ah
);
2030 struct ath_btcoex_hw
*btcoex_hw
= &ah
->btcoex_hw
;
2032 u16 capField
= 0, eeval
;
2034 eeval
= ah
->eep_ops
->get_eeprom(ah
, EEP_REG_0
);
2035 regulatory
->current_rd
= eeval
;
2037 eeval
= ah
->eep_ops
->get_eeprom(ah
, EEP_REG_1
);
2038 if (AR_SREV_9285_10_OR_LATER(ah
))
2039 eeval
|= AR9285_RDEXT_DEFAULT
;
2040 regulatory
->current_rd_ext
= eeval
;
2042 capField
= ah
->eep_ops
->get_eeprom(ah
, EEP_OP_CAP
);
2044 if (ah
->opmode
!= NL80211_IFTYPE_AP
&&
2045 ah
->hw_version
.subvendorid
== AR_SUBVENDOR_ID_NEW_A
) {
2046 if (regulatory
->current_rd
== 0x64 ||
2047 regulatory
->current_rd
== 0x65)
2048 regulatory
->current_rd
+= 5;
2049 else if (regulatory
->current_rd
== 0x41)
2050 regulatory
->current_rd
= 0x43;
2051 ath_print(common
, ATH_DBG_REGULATORY
,
2052 "regdomain mapped to 0x%x\n", regulatory
->current_rd
);
2055 eeval
= ah
->eep_ops
->get_eeprom(ah
, EEP_OP_MODE
);
2056 if ((eeval
& (AR5416_OPFLAGS_11G
| AR5416_OPFLAGS_11A
)) == 0) {
2057 ath_print(common
, ATH_DBG_FATAL
,
2058 "no band has been marked as supported in EEPROM.\n");
2062 bitmap_zero(pCap
->wireless_modes
, ATH9K_MODE_MAX
);
2064 if (eeval
& AR5416_OPFLAGS_11A
) {
2065 set_bit(ATH9K_MODE_11A
, pCap
->wireless_modes
);
2066 if (ah
->config
.ht_enable
) {
2067 if (!(eeval
& AR5416_OPFLAGS_N_5G_HT20
))
2068 set_bit(ATH9K_MODE_11NA_HT20
,
2069 pCap
->wireless_modes
);
2070 if (!(eeval
& AR5416_OPFLAGS_N_5G_HT40
)) {
2071 set_bit(ATH9K_MODE_11NA_HT40PLUS
,
2072 pCap
->wireless_modes
);
2073 set_bit(ATH9K_MODE_11NA_HT40MINUS
,
2074 pCap
->wireless_modes
);
2079 if (eeval
& AR5416_OPFLAGS_11G
) {
2080 set_bit(ATH9K_MODE_11G
, pCap
->wireless_modes
);
2081 if (ah
->config
.ht_enable
) {
2082 if (!(eeval
& AR5416_OPFLAGS_N_2G_HT20
))
2083 set_bit(ATH9K_MODE_11NG_HT20
,
2084 pCap
->wireless_modes
);
2085 if (!(eeval
& AR5416_OPFLAGS_N_2G_HT40
)) {
2086 set_bit(ATH9K_MODE_11NG_HT40PLUS
,
2087 pCap
->wireless_modes
);
2088 set_bit(ATH9K_MODE_11NG_HT40MINUS
,
2089 pCap
->wireless_modes
);
2094 pCap
->tx_chainmask
= ah
->eep_ops
->get_eeprom(ah
, EEP_TX_MASK
);
2096 * For AR9271 we will temporarilly uses the rx chainmax as read from
2099 if ((ah
->hw_version
.devid
== AR5416_DEVID_PCI
) &&
2100 !(eeval
& AR5416_OPFLAGS_11A
) &&
2101 !(AR_SREV_9271(ah
)))
2102 /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
2103 pCap
->rx_chainmask
= ath9k_hw_gpio_get(ah
, 0) ? 0x5 : 0x7;
2105 /* Use rx_chainmask from EEPROM. */
2106 pCap
->rx_chainmask
= ah
->eep_ops
->get_eeprom(ah
, EEP_RX_MASK
);
2108 if (!(AR_SREV_9280(ah
) && (ah
->hw_version
.macRev
== 0)))
2109 ah
->misc_mode
|= AR_PCU_MIC_NEW_LOC_ENA
;
2111 pCap
->low_2ghz_chan
= 2312;
2112 pCap
->high_2ghz_chan
= 2732;
2114 pCap
->low_5ghz_chan
= 4920;
2115 pCap
->high_5ghz_chan
= 6100;
2117 pCap
->hw_caps
&= ~ATH9K_HW_CAP_CIPHER_CKIP
;
2118 pCap
->hw_caps
|= ATH9K_HW_CAP_CIPHER_TKIP
;
2119 pCap
->hw_caps
|= ATH9K_HW_CAP_CIPHER_AESCCM
;
2121 pCap
->hw_caps
&= ~ATH9K_HW_CAP_MIC_CKIP
;
2122 pCap
->hw_caps
|= ATH9K_HW_CAP_MIC_TKIP
;
2123 pCap
->hw_caps
|= ATH9K_HW_CAP_MIC_AESCCM
;
2125 if (ah
->config
.ht_enable
)
2126 pCap
->hw_caps
|= ATH9K_HW_CAP_HT
;
2128 pCap
->hw_caps
&= ~ATH9K_HW_CAP_HT
;
2130 pCap
->hw_caps
|= ATH9K_HW_CAP_GTT
;
2131 pCap
->hw_caps
|= ATH9K_HW_CAP_VEOL
;
2132 pCap
->hw_caps
|= ATH9K_HW_CAP_BSSIDMASK
;
2133 pCap
->hw_caps
&= ~ATH9K_HW_CAP_MCAST_KEYSEARCH
;
2135 if (capField
& AR_EEPROM_EEPCAP_MAXQCU
)
2136 pCap
->total_queues
=
2137 MS(capField
, AR_EEPROM_EEPCAP_MAXQCU
);
2139 pCap
->total_queues
= ATH9K_NUM_TX_QUEUES
;
2141 if (capField
& AR_EEPROM_EEPCAP_KC_ENTRIES
)
2142 pCap
->keycache_size
=
2143 1 << MS(capField
, AR_EEPROM_EEPCAP_KC_ENTRIES
);
2145 pCap
->keycache_size
= AR_KEYTABLE_SIZE
;
2147 pCap
->hw_caps
|= ATH9K_HW_CAP_FASTCC
;
2149 if (AR_SREV_9285(ah
) || AR_SREV_9271(ah
))
2150 pCap
->tx_triglevel_max
= MAX_TX_FIFO_THRESHOLD
>> 1;
2152 pCap
->tx_triglevel_max
= MAX_TX_FIFO_THRESHOLD
;
2154 if (AR_SREV_9271(ah
))
2155 pCap
->num_gpio_pins
= AR9271_NUM_GPIO
;
2156 else if (AR_SREV_9285_10_OR_LATER(ah
))
2157 pCap
->num_gpio_pins
= AR9285_NUM_GPIO
;
2158 else if (AR_SREV_9280_10_OR_LATER(ah
))
2159 pCap
->num_gpio_pins
= AR928X_NUM_GPIO
;
2161 pCap
->num_gpio_pins
= AR_NUM_GPIO
;
2163 if (AR_SREV_9160_10_OR_LATER(ah
) || AR_SREV_9100(ah
)) {
2164 pCap
->hw_caps
|= ATH9K_HW_CAP_CST
;
2165 pCap
->rts_aggr_limit
= ATH_AMPDU_LIMIT_MAX
;
2167 pCap
->rts_aggr_limit
= (8 * 1024);
2170 pCap
->hw_caps
|= ATH9K_HW_CAP_ENHANCEDPM
;
2172 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
2173 ah
->rfsilent
= ah
->eep_ops
->get_eeprom(ah
, EEP_RF_SILENT
);
2174 if (ah
->rfsilent
& EEP_RFSILENT_ENABLED
) {
2176 MS(ah
->rfsilent
, EEP_RFSILENT_GPIO_SEL
);
2177 ah
->rfkill_polarity
=
2178 MS(ah
->rfsilent
, EEP_RFSILENT_POLARITY
);
2180 pCap
->hw_caps
|= ATH9K_HW_CAP_RFSILENT
;
2183 if (AR_SREV_9271(ah
))
2184 pCap
->hw_caps
|= ATH9K_HW_CAP_AUTOSLEEP
;
2186 pCap
->hw_caps
&= ~ATH9K_HW_CAP_AUTOSLEEP
;
2188 if (AR_SREV_9280(ah
) || AR_SREV_9285(ah
))
2189 pCap
->hw_caps
&= ~ATH9K_HW_CAP_4KB_SPLITTRANS
;
2191 pCap
->hw_caps
|= ATH9K_HW_CAP_4KB_SPLITTRANS
;
2193 if (regulatory
->current_rd_ext
& (1 << REG_EXT_JAPAN_MIDBAND
)) {
2195 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A
|
2196 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN
|
2197 AR_EEPROM_EEREGCAP_EN_KK_U2
|
2198 AR_EEPROM_EEREGCAP_EN_KK_MIDBAND
;
2201 AR_EEPROM_EEREGCAP_EN_KK_NEW_11A
|
2202 AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN
;
2205 /* Advertise midband for AR5416 with FCC midband set in eeprom */
2206 if (regulatory
->current_rd_ext
& (1 << REG_EXT_FCC_MIDBAND
) &&
2208 pCap
->reg_cap
|= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND
;
2210 pCap
->num_antcfg_5ghz
=
2211 ah
->eep_ops
->get_num_ant_config(ah
, ATH9K_HAL_FREQ_BAND_5GHZ
);
2212 pCap
->num_antcfg_2ghz
=
2213 ah
->eep_ops
->get_num_ant_config(ah
, ATH9K_HAL_FREQ_BAND_2GHZ
);
2215 if (AR_SREV_9280_10_OR_LATER(ah
) &&
2216 ath9k_hw_btcoex_supported(ah
)) {
2217 btcoex_hw
->btactive_gpio
= ATH_BTACTIVE_GPIO
;
2218 btcoex_hw
->wlanactive_gpio
= ATH_WLANACTIVE_GPIO
;
2220 if (AR_SREV_9285(ah
)) {
2221 btcoex_hw
->scheme
= ATH_BTCOEX_CFG_3WIRE
;
2222 btcoex_hw
->btpriority_gpio
= ATH_BTPRIORITY_GPIO
;
2224 btcoex_hw
->scheme
= ATH_BTCOEX_CFG_2WIRE
;
2227 btcoex_hw
->scheme
= ATH_BTCOEX_CFG_NONE
;
2230 if (AR_SREV_9300_20_OR_LATER(ah
)) {
2231 pCap
->hw_caps
|= ATH9K_HW_CAP_EDMA
| ATH9K_HW_CAP_LDPC
|
2232 ATH9K_HW_CAP_FASTCLOCK
;
2233 pCap
->rx_hp_qdepth
= ATH9K_HW_RX_HP_QDEPTH
;
2234 pCap
->rx_lp_qdepth
= ATH9K_HW_RX_LP_QDEPTH
;
2235 pCap
->rx_status_len
= sizeof(struct ar9003_rxs
);
2236 pCap
->tx_desc_len
= sizeof(struct ar9003_txc
);
2237 pCap
->txs_len
= sizeof(struct ar9003_txs
);
2239 pCap
->tx_desc_len
= sizeof(struct ath_desc
);
2240 if (AR_SREV_9280_20(ah
) &&
2241 ((ah
->eep_ops
->get_eeprom(ah
, EEP_MINOR_REV
) <=
2242 AR5416_EEP_MINOR_VER_16
) ||
2243 ah
->eep_ops
->get_eeprom(ah
, EEP_FSTCLK_5G
)))
2244 pCap
->hw_caps
|= ATH9K_HW_CAP_FASTCLOCK
;
2247 if (AR_SREV_9300_20_OR_LATER(ah
))
2248 pCap
->hw_caps
|= ATH9K_HW_CAP_RAC_SUPPORTED
;
2253 bool ath9k_hw_getcapability(struct ath_hw
*ah
, enum ath9k_capability_type type
,
2254 u32 capability
, u32
*result
)
2256 struct ath_regulatory
*regulatory
= ath9k_hw_regulatory(ah
);
2258 case ATH9K_CAP_CIPHER
:
2259 switch (capability
) {
2260 case ATH9K_CIPHER_AES_CCM
:
2261 case ATH9K_CIPHER_AES_OCB
:
2262 case ATH9K_CIPHER_TKIP
:
2263 case ATH9K_CIPHER_WEP
:
2264 case ATH9K_CIPHER_MIC
:
2265 case ATH9K_CIPHER_CLR
:
2270 case ATH9K_CAP_TKIP_MIC
:
2271 switch (capability
) {
2275 return (ah
->sta_id1_defaults
&
2276 AR_STA_ID1_CRPT_MIC_ENABLE
) ? true :
2279 case ATH9K_CAP_TKIP_SPLIT
:
2280 return (ah
->misc_mode
& AR_PCU_MIC_NEW_LOC_ENA
) ?
2282 case ATH9K_CAP_MCAST_KEYSRCH
:
2283 switch (capability
) {
2287 if (REG_READ(ah
, AR_STA_ID1
) & AR_STA_ID1_ADHOC
) {
2290 return (ah
->sta_id1_defaults
&
2291 AR_STA_ID1_MCAST_KSRCH
) ? true :
2296 case ATH9K_CAP_TXPOW
:
2297 switch (capability
) {
2301 *result
= regulatory
->power_limit
;
2304 *result
= regulatory
->max_power_level
;
2307 *result
= regulatory
->tp_scale
;
2312 return (AR_SREV_9280_20_OR_LATER(ah
) &&
2313 (ah
->eep_ops
->get_eeprom(ah
, EEP_RC_CHAIN_MASK
) == 1))
2319 EXPORT_SYMBOL(ath9k_hw_getcapability
);
2321 bool ath9k_hw_setcapability(struct ath_hw
*ah
, enum ath9k_capability_type type
,
2322 u32 capability
, u32 setting
, int *status
)
2325 case ATH9K_CAP_TKIP_MIC
:
2327 ah
->sta_id1_defaults
|=
2328 AR_STA_ID1_CRPT_MIC_ENABLE
;
2330 ah
->sta_id1_defaults
&=
2331 ~AR_STA_ID1_CRPT_MIC_ENABLE
;
2333 case ATH9K_CAP_MCAST_KEYSRCH
:
2335 ah
->sta_id1_defaults
|= AR_STA_ID1_MCAST_KSRCH
;
2337 ah
->sta_id1_defaults
&= ~AR_STA_ID1_MCAST_KSRCH
;
2343 EXPORT_SYMBOL(ath9k_hw_setcapability
);
2345 /****************************/
2346 /* GPIO / RFKILL / Antennae */
2347 /****************************/
2349 static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw
*ah
,
2353 u32 gpio_shift
, tmp
;
2356 addr
= AR_GPIO_OUTPUT_MUX3
;
2358 addr
= AR_GPIO_OUTPUT_MUX2
;
2360 addr
= AR_GPIO_OUTPUT_MUX1
;
2362 gpio_shift
= (gpio
% 6) * 5;
2364 if (AR_SREV_9280_20_OR_LATER(ah
)
2365 || (addr
!= AR_GPIO_OUTPUT_MUX1
)) {
2366 REG_RMW(ah
, addr
, (type
<< gpio_shift
),
2367 (0x1f << gpio_shift
));
2369 tmp
= REG_READ(ah
, addr
);
2370 tmp
= ((tmp
& 0x1F0) << 1) | (tmp
& ~0x1F0);
2371 tmp
&= ~(0x1f << gpio_shift
);
2372 tmp
|= (type
<< gpio_shift
);
2373 REG_WRITE(ah
, addr
, tmp
);
2377 void ath9k_hw_cfg_gpio_input(struct ath_hw
*ah
, u32 gpio
)
2381 BUG_ON(gpio
>= ah
->caps
.num_gpio_pins
);
2383 gpio_shift
= gpio
<< 1;
2387 (AR_GPIO_OE_OUT_DRV_NO
<< gpio_shift
),
2388 (AR_GPIO_OE_OUT_DRV
<< gpio_shift
));
2390 EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input
);
2392 u32
ath9k_hw_gpio_get(struct ath_hw
*ah
, u32 gpio
)
2394 #define MS_REG_READ(x, y) \
2395 (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y)))
2397 if (gpio
>= ah
->caps
.num_gpio_pins
)
2400 if (AR_SREV_9300_20_OR_LATER(ah
))
2401 return MS_REG_READ(AR9300
, gpio
) != 0;
2402 else if (AR_SREV_9271(ah
))
2403 return MS_REG_READ(AR9271
, gpio
) != 0;
2404 else if (AR_SREV_9287_10_OR_LATER(ah
))
2405 return MS_REG_READ(AR9287
, gpio
) != 0;
2406 else if (AR_SREV_9285_10_OR_LATER(ah
))
2407 return MS_REG_READ(AR9285
, gpio
) != 0;
2408 else if (AR_SREV_9280_10_OR_LATER(ah
))
2409 return MS_REG_READ(AR928X
, gpio
) != 0;
2411 return MS_REG_READ(AR
, gpio
) != 0;
2413 EXPORT_SYMBOL(ath9k_hw_gpio_get
);
2415 void ath9k_hw_cfg_output(struct ath_hw
*ah
, u32 gpio
,
2420 ath9k_hw_gpio_cfg_output_mux(ah
, gpio
, ah_signal_type
);
2422 gpio_shift
= 2 * gpio
;
2426 (AR_GPIO_OE_OUT_DRV_ALL
<< gpio_shift
),
2427 (AR_GPIO_OE_OUT_DRV
<< gpio_shift
));
2429 EXPORT_SYMBOL(ath9k_hw_cfg_output
);
2431 void ath9k_hw_set_gpio(struct ath_hw
*ah
, u32 gpio
, u32 val
)
2433 if (AR_SREV_9271(ah
))
2436 REG_RMW(ah
, AR_GPIO_IN_OUT
, ((val
& 1) << gpio
),
2439 EXPORT_SYMBOL(ath9k_hw_set_gpio
);
2441 u32
ath9k_hw_getdefantenna(struct ath_hw
*ah
)
2443 return REG_READ(ah
, AR_DEF_ANTENNA
) & 0x7;
2445 EXPORT_SYMBOL(ath9k_hw_getdefantenna
);
2447 void ath9k_hw_setantenna(struct ath_hw
*ah
, u32 antenna
)
2449 REG_WRITE(ah
, AR_DEF_ANTENNA
, (antenna
& 0x7));
2451 EXPORT_SYMBOL(ath9k_hw_setantenna
);
2453 /*********************/
2454 /* General Operation */
2455 /*********************/
2457 u32
ath9k_hw_getrxfilter(struct ath_hw
*ah
)
2459 u32 bits
= REG_READ(ah
, AR_RX_FILTER
);
2460 u32 phybits
= REG_READ(ah
, AR_PHY_ERR
);
2462 if (phybits
& AR_PHY_ERR_RADAR
)
2463 bits
|= ATH9K_RX_FILTER_PHYRADAR
;
2464 if (phybits
& (AR_PHY_ERR_OFDM_TIMING
| AR_PHY_ERR_CCK_TIMING
))
2465 bits
|= ATH9K_RX_FILTER_PHYERR
;
2469 EXPORT_SYMBOL(ath9k_hw_getrxfilter
);
2471 void ath9k_hw_setrxfilter(struct ath_hw
*ah
, u32 bits
)
2475 ENABLE_REGWRITE_BUFFER(ah
);
2477 REG_WRITE(ah
, AR_RX_FILTER
, bits
);
2480 if (bits
& ATH9K_RX_FILTER_PHYRADAR
)
2481 phybits
|= AR_PHY_ERR_RADAR
;
2482 if (bits
& ATH9K_RX_FILTER_PHYERR
)
2483 phybits
|= AR_PHY_ERR_OFDM_TIMING
| AR_PHY_ERR_CCK_TIMING
;
2484 REG_WRITE(ah
, AR_PHY_ERR
, phybits
);
2487 REG_WRITE(ah
, AR_RXCFG
,
2488 REG_READ(ah
, AR_RXCFG
) | AR_RXCFG_ZLFDMA
);
2490 REG_WRITE(ah
, AR_RXCFG
,
2491 REG_READ(ah
, AR_RXCFG
) & ~AR_RXCFG_ZLFDMA
);
2493 REGWRITE_BUFFER_FLUSH(ah
);
2494 DISABLE_REGWRITE_BUFFER(ah
);
2496 EXPORT_SYMBOL(ath9k_hw_setrxfilter
);
2498 bool ath9k_hw_phy_disable(struct ath_hw
*ah
)
2500 if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_WARM
))
2503 ath9k_hw_init_pll(ah
, NULL
);
2506 EXPORT_SYMBOL(ath9k_hw_phy_disable
);
2508 bool ath9k_hw_disable(struct ath_hw
*ah
)
2510 if (!ath9k_hw_setpower(ah
, ATH9K_PM_AWAKE
))
2513 if (!ath9k_hw_set_reset_reg(ah
, ATH9K_RESET_COLD
))
2516 ath9k_hw_init_pll(ah
, NULL
);
2519 EXPORT_SYMBOL(ath9k_hw_disable
);
2521 void ath9k_hw_set_txpowerlimit(struct ath_hw
*ah
, u32 limit
)
2523 struct ath_regulatory
*regulatory
= ath9k_hw_regulatory(ah
);
2524 struct ath9k_channel
*chan
= ah
->curchan
;
2525 struct ieee80211_channel
*channel
= chan
->chan
;
2527 regulatory
->power_limit
= min(limit
, (u32
) MAX_RATE_POWER
);
2529 ah
->eep_ops
->set_txpower(ah
, chan
,
2530 ath9k_regd_get_ctl(regulatory
, chan
),
2531 channel
->max_antenna_gain
* 2,
2532 channel
->max_power
* 2,
2533 min((u32
) MAX_RATE_POWER
,
2534 (u32
) regulatory
->power_limit
));
2536 EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit
);
2538 void ath9k_hw_setmac(struct ath_hw
*ah
, const u8
*mac
)
2540 memcpy(ath9k_hw_common(ah
)->macaddr
, mac
, ETH_ALEN
);
2542 EXPORT_SYMBOL(ath9k_hw_setmac
);
2544 void ath9k_hw_setopmode(struct ath_hw
*ah
)
2546 ath9k_hw_set_operating_mode(ah
, ah
->opmode
);
2548 EXPORT_SYMBOL(ath9k_hw_setopmode
);
2550 void ath9k_hw_setmcastfilter(struct ath_hw
*ah
, u32 filter0
, u32 filter1
)
2552 REG_WRITE(ah
, AR_MCAST_FIL0
, filter0
);
2553 REG_WRITE(ah
, AR_MCAST_FIL1
, filter1
);
2555 EXPORT_SYMBOL(ath9k_hw_setmcastfilter
);
2557 void ath9k_hw_write_associd(struct ath_hw
*ah
)
2559 struct ath_common
*common
= ath9k_hw_common(ah
);
2561 REG_WRITE(ah
, AR_BSS_ID0
, get_unaligned_le32(common
->curbssid
));
2562 REG_WRITE(ah
, AR_BSS_ID1
, get_unaligned_le16(common
->curbssid
+ 4) |
2563 ((common
->curaid
& 0x3fff) << AR_BSS_ID1_AID_S
));
2565 EXPORT_SYMBOL(ath9k_hw_write_associd
);
2567 #define ATH9K_MAX_TSF_READ 10
2569 u64
ath9k_hw_gettsf64(struct ath_hw
*ah
)
2571 u32 tsf_lower
, tsf_upper1
, tsf_upper2
;
2574 tsf_upper1
= REG_READ(ah
, AR_TSF_U32
);
2575 for (i
= 0; i
< ATH9K_MAX_TSF_READ
; i
++) {
2576 tsf_lower
= REG_READ(ah
, AR_TSF_L32
);
2577 tsf_upper2
= REG_READ(ah
, AR_TSF_U32
);
2578 if (tsf_upper2
== tsf_upper1
)
2580 tsf_upper1
= tsf_upper2
;
2583 WARN_ON( i
== ATH9K_MAX_TSF_READ
);
2585 return (((u64
)tsf_upper1
<< 32) | tsf_lower
);
2587 EXPORT_SYMBOL(ath9k_hw_gettsf64
);
2589 void ath9k_hw_settsf64(struct ath_hw
*ah
, u64 tsf64
)
2591 REG_WRITE(ah
, AR_TSF_L32
, tsf64
& 0xffffffff);
2592 REG_WRITE(ah
, AR_TSF_U32
, (tsf64
>> 32) & 0xffffffff);
2594 EXPORT_SYMBOL(ath9k_hw_settsf64
);
2596 void ath9k_hw_reset_tsf(struct ath_hw
*ah
)
2598 if (!ath9k_hw_wait(ah
, AR_SLP32_MODE
, AR_SLP32_TSF_WRITE_STATUS
, 0,
2599 AH_TSF_WRITE_TIMEOUT
))
2600 ath_print(ath9k_hw_common(ah
), ATH_DBG_RESET
,
2601 "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n");
2603 REG_WRITE(ah
, AR_RESET_TSF
, AR_RESET_TSF_ONCE
);
2605 EXPORT_SYMBOL(ath9k_hw_reset_tsf
);
2607 void ath9k_hw_set_tsfadjust(struct ath_hw
*ah
, u32 setting
)
2610 ah
->misc_mode
|= AR_PCU_TX_ADD_TSF
;
2612 ah
->misc_mode
&= ~AR_PCU_TX_ADD_TSF
;
2614 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust
);
2617 * Extend 15-bit time stamp from rx descriptor to
2618 * a full 64-bit TSF using the current h/w TSF.
2620 u64
ath9k_hw_extend_tsf(struct ath_hw
*ah
, u32 rstamp
)
2624 tsf
= ath9k_hw_gettsf64(ah
);
2625 if ((tsf
& 0x7fff) < rstamp
)
2627 return (tsf
& ~0x7fff) | rstamp
;
2629 EXPORT_SYMBOL(ath9k_hw_extend_tsf
);
2631 void ath9k_hw_set11nmac2040(struct ath_hw
*ah
)
2633 struct ieee80211_conf
*conf
= &ath9k_hw_common(ah
)->hw
->conf
;
2636 if (conf_is_ht40(conf
) && !ah
->config
.cwm_ignore_extcca
)
2637 macmode
= AR_2040_JOINED_RX_CLEAR
;
2641 REG_WRITE(ah
, AR_2040_MODE
, macmode
);
2644 /* HW Generic timers configuration */
2646 static const struct ath_gen_timer_configuration gen_tmr_configuration
[] =
2648 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2649 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2650 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2651 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2652 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2653 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2654 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2655 {AR_NEXT_NDP_TIMER
, AR_NDP_PERIOD
, AR_TIMER_MODE
, 0x0080},
2656 {AR_NEXT_NDP2_TIMER
, AR_NDP2_PERIOD
, AR_NDP2_TIMER_MODE
, 0x0001},
2657 {AR_NEXT_NDP2_TIMER
+ 1*4, AR_NDP2_PERIOD
+ 1*4,
2658 AR_NDP2_TIMER_MODE
, 0x0002},
2659 {AR_NEXT_NDP2_TIMER
+ 2*4, AR_NDP2_PERIOD
+ 2*4,
2660 AR_NDP2_TIMER_MODE
, 0x0004},
2661 {AR_NEXT_NDP2_TIMER
+ 3*4, AR_NDP2_PERIOD
+ 3*4,
2662 AR_NDP2_TIMER_MODE
, 0x0008},
2663 {AR_NEXT_NDP2_TIMER
+ 4*4, AR_NDP2_PERIOD
+ 4*4,
2664 AR_NDP2_TIMER_MODE
, 0x0010},
2665 {AR_NEXT_NDP2_TIMER
+ 5*4, AR_NDP2_PERIOD
+ 5*4,
2666 AR_NDP2_TIMER_MODE
, 0x0020},
2667 {AR_NEXT_NDP2_TIMER
+ 6*4, AR_NDP2_PERIOD
+ 6*4,
2668 AR_NDP2_TIMER_MODE
, 0x0040},
2669 {AR_NEXT_NDP2_TIMER
+ 7*4, AR_NDP2_PERIOD
+ 7*4,
2670 AR_NDP2_TIMER_MODE
, 0x0080}
2673 /* HW generic timer primitives */
2675 /* compute and clear index of rightmost 1 */
2676 static u32
rightmost_index(struct ath_gen_timer_table
*timer_table
, u32
*mask
)
2686 return timer_table
->gen_timer_index
[b
];
2689 u32
ath9k_hw_gettsf32(struct ath_hw
*ah
)
2691 return REG_READ(ah
, AR_TSF_L32
);
2693 EXPORT_SYMBOL(ath9k_hw_gettsf32
);
2695 struct ath_gen_timer
*ath_gen_timer_alloc(struct ath_hw
*ah
,
2696 void (*trigger
)(void *),
2697 void (*overflow
)(void *),
2701 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2702 struct ath_gen_timer
*timer
;
2704 timer
= kzalloc(sizeof(struct ath_gen_timer
), GFP_KERNEL
);
2706 if (timer
== NULL
) {
2707 ath_print(ath9k_hw_common(ah
), ATH_DBG_FATAL
,
2708 "Failed to allocate memory"
2709 "for hw timer[%d]\n", timer_index
);
2713 /* allocate a hardware generic timer slot */
2714 timer_table
->timers
[timer_index
] = timer
;
2715 timer
->index
= timer_index
;
2716 timer
->trigger
= trigger
;
2717 timer
->overflow
= overflow
;
2722 EXPORT_SYMBOL(ath_gen_timer_alloc
);
2724 void ath9k_hw_gen_timer_start(struct ath_hw
*ah
,
2725 struct ath_gen_timer
*timer
,
2729 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2732 BUG_ON(!timer_period
);
2734 set_bit(timer
->index
, &timer_table
->timer_mask
.timer_bits
);
2736 tsf
= ath9k_hw_gettsf32(ah
);
2738 ath_print(ath9k_hw_common(ah
), ATH_DBG_HWTIMER
,
2739 "curent tsf %x period %x"
2740 "timer_next %x\n", tsf
, timer_period
, timer_next
);
2743 * Pull timer_next forward if the current TSF already passed it
2744 * because of software latency
2746 if (timer_next
< tsf
)
2747 timer_next
= tsf
+ timer_period
;
2750 * Program generic timer registers
2752 REG_WRITE(ah
, gen_tmr_configuration
[timer
->index
].next_addr
,
2754 REG_WRITE(ah
, gen_tmr_configuration
[timer
->index
].period_addr
,
2756 REG_SET_BIT(ah
, gen_tmr_configuration
[timer
->index
].mode_addr
,
2757 gen_tmr_configuration
[timer
->index
].mode_mask
);
2759 /* Enable both trigger and thresh interrupt masks */
2760 REG_SET_BIT(ah
, AR_IMR_S5
,
2761 (SM(AR_GENTMR_BIT(timer
->index
), AR_IMR_S5_GENTIMER_THRESH
) |
2762 SM(AR_GENTMR_BIT(timer
->index
), AR_IMR_S5_GENTIMER_TRIG
)));
2764 EXPORT_SYMBOL(ath9k_hw_gen_timer_start
);
2766 void ath9k_hw_gen_timer_stop(struct ath_hw
*ah
, struct ath_gen_timer
*timer
)
2768 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2770 if ((timer
->index
< AR_FIRST_NDP_TIMER
) ||
2771 (timer
->index
>= ATH_MAX_GEN_TIMER
)) {
2775 /* Clear generic timer enable bits. */
2776 REG_CLR_BIT(ah
, gen_tmr_configuration
[timer
->index
].mode_addr
,
2777 gen_tmr_configuration
[timer
->index
].mode_mask
);
2779 /* Disable both trigger and thresh interrupt masks */
2780 REG_CLR_BIT(ah
, AR_IMR_S5
,
2781 (SM(AR_GENTMR_BIT(timer
->index
), AR_IMR_S5_GENTIMER_THRESH
) |
2782 SM(AR_GENTMR_BIT(timer
->index
), AR_IMR_S5_GENTIMER_TRIG
)));
2784 clear_bit(timer
->index
, &timer_table
->timer_mask
.timer_bits
);
2786 EXPORT_SYMBOL(ath9k_hw_gen_timer_stop
);
2788 void ath_gen_timer_free(struct ath_hw
*ah
, struct ath_gen_timer
*timer
)
2790 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2792 /* free the hardware generic timer slot */
2793 timer_table
->timers
[timer
->index
] = NULL
;
2796 EXPORT_SYMBOL(ath_gen_timer_free
);
2799 * Generic Timer Interrupts handling
2801 void ath_gen_timer_isr(struct ath_hw
*ah
)
2803 struct ath_gen_timer_table
*timer_table
= &ah
->hw_gen_timers
;
2804 struct ath_gen_timer
*timer
;
2805 struct ath_common
*common
= ath9k_hw_common(ah
);
2806 u32 trigger_mask
, thresh_mask
, index
;
2808 /* get hardware generic timer interrupt status */
2809 trigger_mask
= ah
->intr_gen_timer_trigger
;
2810 thresh_mask
= ah
->intr_gen_timer_thresh
;
2811 trigger_mask
&= timer_table
->timer_mask
.val
;
2812 thresh_mask
&= timer_table
->timer_mask
.val
;
2814 trigger_mask
&= ~thresh_mask
;
2816 while (thresh_mask
) {
2817 index
= rightmost_index(timer_table
, &thresh_mask
);
2818 timer
= timer_table
->timers
[index
];
2820 ath_print(common
, ATH_DBG_HWTIMER
,
2821 "TSF overflow for Gen timer %d\n", index
);
2822 timer
->overflow(timer
->arg
);
2825 while (trigger_mask
) {
2826 index
= rightmost_index(timer_table
, &trigger_mask
);
2827 timer
= timer_table
->timers
[index
];
2829 ath_print(common
, ATH_DBG_HWTIMER
,
2830 "Gen timer[%d] trigger\n", index
);
2831 timer
->trigger(timer
->arg
);
2834 EXPORT_SYMBOL(ath_gen_timer_isr
);
2840 void ath9k_hw_htc_resetinit(struct ath_hw
*ah
)
2842 ah
->htc_reset_init
= true;
2844 EXPORT_SYMBOL(ath9k_hw_htc_resetinit
);
2849 } ath_mac_bb_names
[] = {
2850 /* Devices with external radios */
2851 { AR_SREV_VERSION_5416_PCI
, "5416" },
2852 { AR_SREV_VERSION_5416_PCIE
, "5418" },
2853 { AR_SREV_VERSION_9100
, "9100" },
2854 { AR_SREV_VERSION_9160
, "9160" },
2855 /* Single-chip solutions */
2856 { AR_SREV_VERSION_9280
, "9280" },
2857 { AR_SREV_VERSION_9285
, "9285" },
2858 { AR_SREV_VERSION_9287
, "9287" },
2859 { AR_SREV_VERSION_9271
, "9271" },
2860 { AR_SREV_VERSION_9300
, "9300" },
2863 /* For devices with external radios */
2867 } ath_rf_names
[] = {
2869 { AR_RAD5133_SREV_MAJOR
, "5133" },
2870 { AR_RAD5122_SREV_MAJOR
, "5122" },
2871 { AR_RAD2133_SREV_MAJOR
, "2133" },
2872 { AR_RAD2122_SREV_MAJOR
, "2122" }
2876 * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
2878 static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version
)
2882 for (i
=0; i
<ARRAY_SIZE(ath_mac_bb_names
); i
++) {
2883 if (ath_mac_bb_names
[i
].version
== mac_bb_version
) {
2884 return ath_mac_bb_names
[i
].name
;
2892 * Return the RF name. "????" is returned if the RF is unknown.
2893 * Used for devices with external radios.
2895 static const char *ath9k_hw_rf_name(u16 rf_version
)
2899 for (i
=0; i
<ARRAY_SIZE(ath_rf_names
); i
++) {
2900 if (ath_rf_names
[i
].version
== rf_version
) {
2901 return ath_rf_names
[i
].name
;
2908 void ath9k_hw_name(struct ath_hw
*ah
, char *hw_name
, size_t len
)
2912 /* chipsets >= AR9280 are single-chip */
2913 if (AR_SREV_9280_10_OR_LATER(ah
)) {
2914 used
= snprintf(hw_name
, len
,
2915 "Atheros AR%s Rev:%x",
2916 ath9k_hw_mac_bb_name(ah
->hw_version
.macVersion
),
2917 ah
->hw_version
.macRev
);
2920 used
= snprintf(hw_name
, len
,
2921 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
2922 ath9k_hw_mac_bb_name(ah
->hw_version
.macVersion
),
2923 ah
->hw_version
.macRev
,
2924 ath9k_hw_rf_name((ah
->hw_version
.analog5GhzRev
&
2925 AR_RADIO_SREV_MAJOR
)),
2926 ah
->hw_version
.phyRev
);
2929 hw_name
[used
] = '\0';
2931 EXPORT_SYMBOL(ath9k_hw_name
);