Root/package/mac80211/patches/520-pending_work.patch

1--- a/net/mac80211/main.c
2+++ b/net/mac80211/main.c
3@@ -103,11 +103,13 @@ int ieee80211_hw_config(struct ieee80211
4     int ret = 0;
5     int power;
6     enum nl80211_channel_type channel_type;
7+ u32 offchannel_flag;
8 
9     might_sleep();
10 
11     scan_chan = local->scan_channel;
12 
13+ offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
14     if (scan_chan) {
15         chan = scan_chan;
16         channel_type = NL80211_CHAN_NO_HT;
17@@ -121,8 +123,9 @@ int ieee80211_hw_config(struct ieee80211
18         channel_type = local->_oper_channel_type;
19         local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL;
20     }
21+ offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
22 
23- if (chan != local->hw.conf.channel ||
24+ if (offchannel_flag || chan != local->hw.conf.channel ||
25         channel_type != local->hw.conf.channel_type) {
26         local->hw.conf.channel = chan;
27         local->hw.conf.channel_type = channel_type;
28--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
29+++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
30@@ -63,6 +63,7 @@ static bool ar9002_hw_per_calibration(st
31                       u8 rxchainmask,
32                       struct ath9k_cal_list *currCal)
33 {
34+ struct ath9k_hw_cal_data *caldata = ah->caldata;
35     bool iscaldone = false;
36 
37     if (currCal->calState == CAL_RUNNING) {
38@@ -81,14 +82,14 @@ static bool ar9002_hw_per_calibration(st
39                 }
40 
41                 currCal->calData->calPostProc(ah, numChains);
42- ichan->CalValid |= currCal->calData->calType;
43+ caldata->CalValid |= currCal->calData->calType;
44                 currCal->calState = CAL_DONE;
45                 iscaldone = true;
46             } else {
47                 ar9002_hw_setup_calibration(ah, currCal);
48             }
49         }
50- } else if (!(ichan->CalValid & currCal->calData->calType)) {
51+ } else if (!(caldata->CalValid & currCal->calData->calType)) {
52         ath9k_hw_reset_calibration(ah, currCal);
53     }
54 
55@@ -686,8 +687,13 @@ static bool ar9002_hw_calibrate(struct a
56 {
57     bool iscaldone = true;
58     struct ath9k_cal_list *currCal = ah->cal_list_curr;
59+ bool nfcal, nfcal_pending = false;
60 
61- if (currCal &&
62+ nfcal = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF);
63+ if (ah->caldata)
64+ nfcal_pending = ah->caldata->nfcal_pending;
65+
66+ if (currCal && !nfcal &&
67         (currCal->calState == CAL_RUNNING ||
68          currCal->calState == CAL_WAITING)) {
69         iscaldone = ar9002_hw_per_calibration(ah, chan,
70@@ -703,7 +709,7 @@ static bool ar9002_hw_calibrate(struct a
71     }
72 
73     /* Do NF cal only at longer intervals */
74- if (longcal) {
75+ if (longcal || nfcal_pending) {
76         /* Do periodic PAOffset Cal */
77         ar9002_hw_pa_cal(ah, false);
78         ar9002_hw_olc_temp_compensation(ah);
79@@ -712,16 +718,18 @@ static bool ar9002_hw_calibrate(struct a
80          * Get the value from the previous NF cal and update
81          * history buffer.
82          */
83- ath9k_hw_getnf(ah, chan);
84-
85- /*
86- * Load the NF from history buffer of the current channel.
87- * NF is slow time-variant, so it is OK to use a historical
88- * value.
89- */
90- ath9k_hw_loadnf(ah, ah->curchan);
91+ if (ath9k_hw_getnf(ah, chan)) {
92+ /*
93+ * Load the NF from history buffer of the current
94+ * channel.
95+ * NF is slow time-variant, so it is OK to use a
96+ * historical value.
97+ */
98+ ath9k_hw_loadnf(ah, ah->curchan);
99+ }
100 
101- ath9k_hw_start_nfcal(ah);
102+ if (longcal)
103+ ath9k_hw_start_nfcal(ah, false);
104     }
105 
106     return iscaldone;
107@@ -869,8 +877,10 @@ static bool ar9002_hw_init_cal(struct at
108     ar9002_hw_pa_cal(ah, true);
109 
110     /* Do NF Calibration after DC offset and other calibrations */
111- REG_WRITE(ah, AR_PHY_AGC_CONTROL,
112- REG_READ(ah, AR_PHY_AGC_CONTROL) | AR_PHY_AGC_CONTROL_NF);
113+ ath9k_hw_start_nfcal(ah, true);
114+
115+ if (ah->caldata)
116+ ah->caldata->nfcal_pending = true;
117 
118     ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
119 
120@@ -901,7 +911,8 @@ static bool ar9002_hw_init_cal(struct at
121             ath9k_hw_reset_calibration(ah, ah->cal_list_curr);
122     }
123 
124- chan->CalValid = 0;
125+ if (ah->caldata)
126+ ah->caldata->CalValid = 0;
127 
128     return true;
129 }
130--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
131+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
132@@ -68,6 +68,7 @@ static bool ar9003_hw_per_calibration(st
133                       u8 rxchainmask,
134                       struct ath9k_cal_list *currCal)
135 {
136+ struct ath9k_hw_cal_data *caldata = ah->caldata;
137     /* Cal is assumed not done until explicitly set below */
138     bool iscaldone = false;
139 
140@@ -95,7 +96,7 @@ static bool ar9003_hw_per_calibration(st
141                 currCal->calData->calPostProc(ah, numChains);
142 
143                 /* Calibration has finished. */
144- ichan->CalValid |= currCal->calData->calType;
145+ caldata->CalValid |= currCal->calData->calType;
146                 currCal->calState = CAL_DONE;
147                 iscaldone = true;
148             } else {
149@@ -106,7 +107,7 @@ static bool ar9003_hw_per_calibration(st
150             ar9003_hw_setup_calibration(ah, currCal);
151             }
152         }
153- } else if (!(ichan->CalValid & currCal->calData->calType)) {
154+ } else if (!(caldata->CalValid & currCal->calData->calType)) {
155         /* If current cal is marked invalid in channel, kick it off */
156         ath9k_hw_reset_calibration(ah, currCal);
157     }
158@@ -149,6 +150,12 @@ static bool ar9003_hw_calibrate(struct a
159     /* Do NF cal only at longer intervals */
160     if (longcal) {
161         /*
162+ * Get the value from the previous NF cal and update
163+ * history buffer.
164+ */
165+ ath9k_hw_getnf(ah, chan);
166+
167+ /*
168          * Load the NF from history buffer of the current channel.
169          * NF is slow time-variant, so it is OK to use a historical
170          * value.
171@@ -156,7 +163,7 @@ static bool ar9003_hw_calibrate(struct a
172         ath9k_hw_loadnf(ah, ah->curchan);
173 
174         /* start NF calibration, without updating BB NF register */
175- ath9k_hw_start_nfcal(ah);
176+ ath9k_hw_start_nfcal(ah, false);
177     }
178 
179     return iscaldone;
180@@ -762,6 +769,8 @@ static bool ar9003_hw_init_cal(struct at
181     /* Revert chainmasks to their original values before NF cal */
182     ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
183 
184+ ath9k_hw_start_nfcal(ah, true);
185+
186     /* Initialize list pointers */
187     ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
188 
189@@ -785,7 +794,8 @@ static bool ar9003_hw_init_cal(struct at
190     if (ah->cal_list_curr)
191         ath9k_hw_reset_calibration(ah, ah->cal_list_curr);
192 
193- chan->CalValid = 0;
194+ if (ah->caldata)
195+ ah->caldata->CalValid = 0;
196 
197     return true;
198 }
199--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
200+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
201@@ -542,7 +542,11 @@ static void ar9003_hw_prog_ini(struct at
202         u32 reg = INI_RA(iniArr, i, 0);
203         u32 val = INI_RA(iniArr, i, column);
204 
205- REG_WRITE(ah, reg, val);
206+ if (reg >= 0x16000 && reg < 0x17000)
207+ ath9k_hw_analog_shift_regwrite(ah, reg, val);
208+ else
209+ REG_WRITE(ah, reg, val);
210+
211         DO_DELAY(regWrites);
212     }
213 }
214--- a/drivers/net/wireless/ath/ath9k/calib.c
215+++ b/drivers/net/wireless/ath/ath9k/calib.c
216@@ -22,23 +22,6 @@
217 /* We can tune this as we go by monitoring really low values */
218 #define ATH9K_NF_TOO_LOW -60
219 
220-/* AR5416 may return very high value (like -31 dBm), in those cases the nf
221- * is incorrect and we should use the static NF value. Later we can try to
222- * find out why they are reporting these values */
223-
224-static bool ath9k_hw_nf_in_range(struct ath_hw *ah, s16 nf)
225-{
226- if (nf > ATH9K_NF_TOO_LOW) {
227- ath_print(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
228- "noise floor value detected (%d) is "
229- "lower than what we think is a "
230- "reasonable value (%d)\n",
231- nf, ATH9K_NF_TOO_LOW);
232- return false;
233- }
234- return true;
235-}
236-
237 static int16_t ath9k_hw_get_nf_hist_mid(int16_t *nfCalBuffer)
238 {
239     int16_t nfval;
240@@ -121,6 +104,19 @@ void ath9k_hw_reset_calibration(struct a
241     ah->cal_samples = 0;
242 }
243 
244+static s16 ath9k_hw_get_default_nf(struct ath_hw *ah,
245+ struct ath9k_channel *chan)
246+{
247+ struct ath_nf_limits *limit;
248+
249+ if (!chan || IS_CHAN_2GHZ(chan))
250+ limit = &ah->nf_2g;
251+ else
252+ limit = &ah->nf_5g;
253+
254+ return limit->nominal;
255+}
256+
257 /* This is done for the currently configured channel */
258 bool ath9k_hw_reset_calvalid(struct ath_hw *ah)
259 {
260@@ -128,7 +124,7 @@ bool ath9k_hw_reset_calvalid(struct ath_
261     struct ieee80211_conf *conf = &common->hw->conf;
262     struct ath9k_cal_list *currCal = ah->cal_list_curr;
263 
264- if (!ah->curchan)
265+ if (!ah->caldata)
266         return true;
267 
268     if (!AR_SREV_9100(ah) && !AR_SREV_9160_10_OR_LATER(ah))
269@@ -151,37 +147,55 @@ bool ath9k_hw_reset_calvalid(struct ath_
270           "Resetting Cal %d state for channel %u\n",
271           currCal->calData->calType, conf->channel->center_freq);
272 
273- ah->curchan->CalValid &= ~currCal->calData->calType;
274+ ah->caldata->CalValid &= ~currCal->calData->calType;
275     currCal->calState = CAL_WAITING;
276 
277     return false;
278 }
279 EXPORT_SYMBOL(ath9k_hw_reset_calvalid);
280 
281-void ath9k_hw_start_nfcal(struct ath_hw *ah)
282+void ath9k_hw_start_nfcal(struct ath_hw *ah, bool update)
283 {
284+ if (ah->caldata)
285+ ah->caldata->nfcal_pending = true;
286+
287     REG_SET_BIT(ah, AR_PHY_AGC_CONTROL,
288             AR_PHY_AGC_CONTROL_ENABLE_NF);
289- REG_SET_BIT(ah, AR_PHY_AGC_CONTROL,
290+
291+ if (update)
292+ REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,
293+ AR_PHY_AGC_CONTROL_NO_UPDATE_NF);
294+ else
295+ REG_SET_BIT(ah, AR_PHY_AGC_CONTROL,
296             AR_PHY_AGC_CONTROL_NO_UPDATE_NF);
297+
298     REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NF);
299 }
300 
301 void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan)
302 {
303- struct ath9k_nfcal_hist *h;
304+ struct ath9k_nfcal_hist *h = NULL;
305     unsigned i, j;
306     int32_t val;
307     u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
308     struct ath_common *common = ath9k_hw_common(ah);
309+ s16 default_nf = ath9k_hw_get_default_nf(ah, chan);
310 
311- h = ah->nfCalHist;
312+ if (ah->caldata)
313+ h = ah->caldata->nfCalHist;
314 
315     for (i = 0; i < NUM_NF_READINGS; i++) {
316         if (chainmask & (1 << i)) {
317+ s16 nfval;
318+
319+ if (h)
320+ nfval = h[i].privNF;
321+ else
322+ nfval = default_nf;
323+
324             val = REG_READ(ah, ah->nf_regs[i]);
325             val &= 0xFFFFFE00;
326- val |= (((u32) (h[i].privNF) << 1) & 0x1ff);
327+ val |= (((u32) nfval << 1) & 0x1ff);
328             REG_WRITE(ah, ah->nf_regs[i], val);
329         }
330     }
331@@ -277,22 +291,25 @@ static void ath9k_hw_nf_sanitize(struct
332     }
333 }
334 
335-int16_t ath9k_hw_getnf(struct ath_hw *ah,
336- struct ath9k_channel *chan)
337+bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan)
338 {
339     struct ath_common *common = ath9k_hw_common(ah);
340     int16_t nf, nfThresh;
341     int16_t nfarray[NUM_NF_READINGS] = { 0 };
342     struct ath9k_nfcal_hist *h;
343     struct ieee80211_channel *c = chan->chan;
344+ struct ath9k_hw_cal_data *caldata = ah->caldata;
345+
346+ if (!caldata)
347+ return false;
348 
349     chan->channelFlags &= (~CHANNEL_CW_INT);
350     if (REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF) {
351         ath_print(common, ATH_DBG_CALIBRATE,
352               "NF did not complete in calibration window\n");
353         nf = 0;
354- chan->rawNoiseFloor = nf;
355- return chan->rawNoiseFloor;
356+ caldata->rawNoiseFloor = nf;
357+ return false;
358     } else {
359         ath9k_hw_do_getnf(ah, nfarray);
360         ath9k_hw_nf_sanitize(ah, nfarray);
361@@ -307,47 +324,40 @@ int16_t ath9k_hw_getnf(struct ath_hw *ah
362         }
363     }
364 
365- h = ah->nfCalHist;
366-
367+ h = caldata->nfCalHist;
368+ caldata->nfcal_pending = false;
369     ath9k_hw_update_nfcal_hist_buffer(h, nfarray);
370- chan->rawNoiseFloor = h[0].privNF;
371-
372- return chan->rawNoiseFloor;
373+ caldata->rawNoiseFloor = h[0].privNF;
374+ return true;
375 }
376 
377-void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah)
378+void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah,
379+ struct ath9k_channel *chan)
380 {
381- struct ath_nf_limits *limit;
382+ struct ath9k_nfcal_hist *h;
383+ s16 default_nf;
384     int i, j;
385 
386- if (!ah->curchan || IS_CHAN_2GHZ(ah->curchan))
387- limit = &ah->nf_2g;
388- else
389- limit = &ah->nf_5g;
390+ if (!ah->caldata)
391+ return;
392 
393+ h = ah->caldata->nfCalHist;
394+ default_nf = ath9k_hw_get_default_nf(ah, chan);
395     for (i = 0; i < NUM_NF_READINGS; i++) {
396- ah->nfCalHist[i].currIndex = 0;
397- ah->nfCalHist[i].privNF = limit->nominal;
398- ah->nfCalHist[i].invalidNFcount =
399- AR_PHY_CCA_FILTERWINDOW_LENGTH;
400+ h[i].currIndex = 0;
401+ h[i].privNF = default_nf;
402+ h[i].invalidNFcount = AR_PHY_CCA_FILTERWINDOW_LENGTH;
403         for (j = 0; j < ATH9K_NF_CAL_HIST_MAX; j++) {
404- ah->nfCalHist[i].nfCalBuffer[j] = limit->nominal;
405+ h[i].nfCalBuffer[j] = default_nf;
406         }
407     }
408 }
409 
410 s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan)
411 {
412- s16 nf;
413-
414- if (chan->rawNoiseFloor == 0)
415- nf = -96;
416- else
417- nf = chan->rawNoiseFloor;
418-
419- if (!ath9k_hw_nf_in_range(ah, nf))
420- nf = ATH_DEFAULT_NOISE_FLOOR;
421+ if (!ah->caldata || !ah->caldata->rawNoiseFloor)
422+ return ath9k_hw_get_default_nf(ah, chan);
423 
424- return nf;
425+ return ah->caldata->rawNoiseFloor;
426 }
427 EXPORT_SYMBOL(ath9k_hw_getchan_noise);
428--- a/drivers/net/wireless/ath/ath9k/calib.h
429+++ b/drivers/net/wireless/ath/ath9k/calib.h
430@@ -108,11 +108,11 @@ struct ath9k_pacal_info{
431 };
432 
433 bool ath9k_hw_reset_calvalid(struct ath_hw *ah);
434-void ath9k_hw_start_nfcal(struct ath_hw *ah);
435+void ath9k_hw_start_nfcal(struct ath_hw *ah, bool update);
436 void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan);
437-int16_t ath9k_hw_getnf(struct ath_hw *ah,
438- struct ath9k_channel *chan);
439-void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah);
440+bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan);
441+void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah,
442+ struct ath9k_channel *chan);
443 s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan);
444 void ath9k_hw_reset_calibration(struct ath_hw *ah,
445                 struct ath9k_cal_list *currCal);
446--- a/drivers/net/wireless/ath/ath9k/hw.c
447+++ b/drivers/net/wireless/ath/ath9k/hw.c
448@@ -622,7 +622,6 @@ static int __ath9k_hw_init(struct ath_hw
449     else
450         ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
451 
452- ath9k_init_nfcal_hist_buffer(ah);
453     ah->bb_watchdog_timeout_ms = 25;
454 
455     common->state = ATH_HW_INITIALIZED;
456@@ -1195,9 +1194,6 @@ static bool ath9k_hw_channel_change(stru
457 
458     ath9k_hw_spur_mitigate_freq(ah, chan);
459 
460- if (!chan->oneTimeCalsDone)
461- chan->oneTimeCalsDone = true;
462-
463     return true;
464 }
465 
466@@ -1230,7 +1226,7 @@ bool ath9k_hw_check_alive(struct ath_hw
467 EXPORT_SYMBOL(ath9k_hw_check_alive);
468 
469 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
470- bool bChannelChange)
471+ struct ath9k_hw_cal_data *caldata, bool bChannelChange)
472 {
473     struct ath_common *common = ath9k_hw_common(ah);
474     u32 saveLedState;
475@@ -1255,9 +1251,19 @@ int ath9k_hw_reset(struct ath_hw *ah, st
476     if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
477         return -EIO;
478 
479- if (curchan && !ah->chip_fullsleep)
480+ if (curchan && !ah->chip_fullsleep && ah->caldata)
481         ath9k_hw_getnf(ah, curchan);
482 
483+ ah->caldata = caldata;
484+ if (caldata &&
485+ (chan->channel != caldata->channel ||
486+ (chan->channelFlags & ~CHANNEL_CW_INT) !=
487+ (caldata->channelFlags & ~CHANNEL_CW_INT))) {
488+ /* Operating channel changed, reset channel calibration data */
489+ memset(caldata, 0, sizeof(*caldata));
490+ ath9k_init_nfcal_hist_buffer(ah, chan);
491+ }
492+
493     if (bChannelChange &&
494         (ah->chip_fullsleep != true) &&
495         (ah->curchan != NULL) &&
496@@ -1268,7 +1274,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
497 
498         if (ath9k_hw_channel_change(ah, chan)) {
499             ath9k_hw_loadnf(ah, ah->curchan);
500- ath9k_hw_start_nfcal(ah);
501+ ath9k_hw_start_nfcal(ah, true);
502             return 0;
503         }
504     }
505@@ -1473,11 +1479,8 @@ int ath9k_hw_reset(struct ath_hw *ah, st
506     if (ah->btcoex_hw.enabled)
507         ath9k_hw_btcoex_enable(ah);
508 
509- if (AR_SREV_9300_20_OR_LATER(ah)) {
510- ath9k_hw_loadnf(ah, curchan);
511- ath9k_hw_start_nfcal(ah);
512+ if (AR_SREV_9300_20_OR_LATER(ah))
513         ar9003_hw_bb_watchdog_config(ah);
514- }
515 
516     return 0;
517 }
518--- a/drivers/net/wireless/ath/ath9k/main.c
519+++ b/drivers/net/wireless/ath/ath9k/main.c
520@@ -155,6 +155,27 @@ void ath9k_ps_restore(struct ath_softc *
521     spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
522 }
523 
524+static void ath_start_ani(struct ath_common *common)
525+{
526+ struct ath_hw *ah = common->ah;
527+ unsigned long timestamp = jiffies_to_msecs(jiffies);
528+ struct ath_softc *sc = (struct ath_softc *) common->priv;
529+
530+ if (!(sc->sc_flags & SC_OP_ANI_RUN))
531+ return;
532+
533+ if (sc->sc_flags & SC_OP_OFFCHANNEL)
534+ return;
535+
536+ common->ani.longcal_timer = timestamp;
537+ common->ani.shortcal_timer = timestamp;
538+ common->ani.checkani_timer = timestamp;
539+
540+ mod_timer(&common->ani.timer,
541+ jiffies +
542+ msecs_to_jiffies((u32)ah->config.ani_poll_interval));
543+}
544+
545 /*
546  * Set/change channels. If the channel is really being changed, it's done
547  * by reseting the chip. To accomplish this we must first cleanup any pending
548@@ -163,16 +184,23 @@ void ath9k_ps_restore(struct ath_softc *
549 int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
550             struct ath9k_channel *hchan)
551 {
552+ struct ath_wiphy *aphy = hw->priv;
553     struct ath_hw *ah = sc->sc_ah;
554     struct ath_common *common = ath9k_hw_common(ah);
555     struct ieee80211_conf *conf = &common->hw->conf;
556     bool fastcc = true, stopped;
557     struct ieee80211_channel *channel = hw->conf.channel;
558+ struct ath9k_hw_cal_data *caldata = NULL;
559     int r;
560 
561     if (sc->sc_flags & SC_OP_INVALID)
562         return -EIO;
563 
564+ del_timer_sync(&common->ani.timer);
565+ cancel_work_sync(&sc->paprd_work);
566+ cancel_work_sync(&sc->hw_check_work);
567+ cancel_delayed_work_sync(&sc->tx_complete_work);
568+
569     ath9k_ps_wakeup(sc);
570 
571     /*
572@@ -192,9 +220,12 @@ int ath_set_channel(struct ath_softc *sc
573      * to flush data frames already in queue because of
574      * changing channel. */
575 
576- if (!stopped || (sc->sc_flags & SC_OP_FULL_RESET))
577+ if (!stopped || !(sc->sc_flags & SC_OP_OFFCHANNEL))
578         fastcc = false;
579 
580+ if (!(sc->sc_flags & SC_OP_OFFCHANNEL))
581+ caldata = &aphy->caldata;
582+
583     ath_print(common, ATH_DBG_CONFIG,
584           "(%u MHz) -> (%u MHz), conf_is_ht40: %d\n",
585           sc->sc_ah->curchan->channel,
586@@ -202,7 +233,7 @@ int ath_set_channel(struct ath_softc *sc
587 
588     spin_lock_bh(&sc->sc_resetlock);
589 
590- r = ath9k_hw_reset(ah, hchan, fastcc);
591+ r = ath9k_hw_reset(ah, hchan, caldata, fastcc);
592     if (r) {
593         ath_print(common, ATH_DBG_FATAL,
594               "Unable to reset channel (%u MHz), "
595@@ -213,8 +244,6 @@ int ath_set_channel(struct ath_softc *sc
596     }
597     spin_unlock_bh(&sc->sc_resetlock);
598 
599- sc->sc_flags &= ~SC_OP_FULL_RESET;
600-
601     if (ath_startrecv(sc) != 0) {
602         ath_print(common, ATH_DBG_FATAL,
603               "Unable to restart recv logic\n");
604@@ -226,6 +255,12 @@ int ath_set_channel(struct ath_softc *sc
605     ath_update_txpow(sc);
606     ath9k_hw_set_interrupts(ah, ah->imask);
607 
608+ if (!(sc->sc_flags & (SC_OP_OFFCHANNEL | SC_OP_SCANNING))) {
609+ ath_start_ani(common);
610+ ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
611+ ath_beacon_config(sc, NULL);
612+ }
613+
614  ps_restore:
615     ath9k_ps_restore(sc);
616     return r;
617@@ -234,17 +269,19 @@ int ath_set_channel(struct ath_softc *sc
618 static void ath_paprd_activate(struct ath_softc *sc)
619 {
620     struct ath_hw *ah = sc->sc_ah;
621+ struct ath9k_hw_cal_data *caldata = ah->caldata;
622     int chain;
623 
624- if (!ah->curchan->paprd_done)
625+ if (!caldata || !caldata->paprd_done)
626         return;
627 
628     ath9k_ps_wakeup(sc);
629+ ar9003_paprd_enable(ah, false);
630     for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
631         if (!(ah->caps.tx_chainmask & BIT(chain)))
632             continue;
633 
634- ar9003_paprd_populate_single_table(ah, ah->curchan, chain);
635+ ar9003_paprd_populate_single_table(ah, caldata, chain);
636     }
637 
638     ar9003_paprd_enable(ah, true);
639@@ -262,6 +299,7 @@ void ath_paprd_calibrate(struct work_str
640     int band = hw->conf.channel->band;
641     struct ieee80211_supported_band *sband = &sc->sbands[band];
642     struct ath_tx_control txctl;
643+ struct ath9k_hw_cal_data *caldata = ah->caldata;
644     int qnum, ftype;
645     int chain_ok = 0;
646     int chain;
647@@ -269,6 +307,9 @@ void ath_paprd_calibrate(struct work_str
648     int time_left;
649     int i;
650 
651+ if (!caldata)
652+ return;
653+
654     skb = alloc_skb(len, GFP_KERNEL);
655     if (!skb)
656         return;
657@@ -323,7 +364,7 @@ void ath_paprd_calibrate(struct work_str
658         if (!ar9003_paprd_is_done(ah))
659             break;
660 
661- if (ar9003_paprd_create_curve(ah, ah->curchan, chain) != 0)
662+ if (ar9003_paprd_create_curve(ah, caldata, chain) != 0)
663             break;
664 
665         chain_ok = 1;
666@@ -331,7 +372,7 @@ void ath_paprd_calibrate(struct work_str
667     kfree_skb(skb);
668 
669     if (chain_ok) {
670- ah->curchan->paprd_done = true;
671+ caldata->paprd_done = true;
672         ath_paprd_activate(sc);
673     }
674 
675@@ -440,33 +481,14 @@ set_timer:
676         cal_interval = min(cal_interval, (u32)short_cal_interval);
677 
678     mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval));
679- if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) &&
680- !(sc->sc_flags & SC_OP_SCANNING)) {
681- if (!sc->sc_ah->curchan->paprd_done)
682+ if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && ah->caldata) {
683+ if (!ah->caldata->paprd_done)
684             ieee80211_queue_work(sc->hw, &sc->paprd_work);
685         else
686             ath_paprd_activate(sc);
687     }
688 }
689 
690-static void ath_start_ani(struct ath_common *common)
691-{
692- struct ath_hw *ah = common->ah;
693- unsigned long timestamp = jiffies_to_msecs(jiffies);
694- struct ath_softc *sc = (struct ath_softc *) common->priv;
695-
696- if (!(sc->sc_flags & SC_OP_ANI_RUN))
697- return;
698-
699- common->ani.longcal_timer = timestamp;
700- common->ani.shortcal_timer = timestamp;
701- common->ani.checkani_timer = timestamp;
702-
703- mod_timer(&common->ani.timer,
704- jiffies +
705- msecs_to_jiffies((u32)ah->config.ani_poll_interval));
706-}
707-
708 /*
709  * Update tx/rx chainmask. For legacy association,
710  * hard code chainmask to 1x1, for 11n association, use
711@@ -478,7 +500,7 @@ void ath_update_chainmask(struct ath_sof
712     struct ath_hw *ah = sc->sc_ah;
713     struct ath_common *common = ath9k_hw_common(ah);
714 
715- if ((sc->sc_flags & SC_OP_SCANNING) || is_ht ||
716+ if ((sc->sc_flags & SC_OP_OFFCHANNEL) || is_ht ||
717         (ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE)) {
718         common->tx_chainmask = ah->caps.tx_chainmask;
719         common->rx_chainmask = ah->caps.rx_chainmask;
720@@ -818,7 +840,7 @@ void ath_radio_enable(struct ath_softc *
721         ah->curchan = ath_get_curchannel(sc, sc->hw);
722 
723     spin_lock_bh(&sc->sc_resetlock);
724- r = ath9k_hw_reset(ah, ah->curchan, false);
725+ r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
726     if (r) {
727         ath_print(common, ATH_DBG_FATAL,
728               "Unable to reset channel (%u MHz), "
729@@ -878,7 +900,7 @@ void ath_radio_disable(struct ath_softc
730         ah->curchan = ath_get_curchannel(sc, hw);
731 
732     spin_lock_bh(&sc->sc_resetlock);
733- r = ath9k_hw_reset(ah, ah->curchan, false);
734+ r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
735     if (r) {
736         ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL,
737               "Unable to reset channel (%u MHz), "
738@@ -911,7 +933,7 @@ int ath_reset(struct ath_softc *sc, bool
739     ath_flushrecv(sc);
740 
741     spin_lock_bh(&sc->sc_resetlock);
742- r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false);
743+ r = ath9k_hw_reset(ah, sc->sc_ah->curchan, ah->caldata, false);
744     if (r)
745         ath_print(common, ATH_DBG_FATAL,
746               "Unable to reset hardware; reset status %d\n", r);
747@@ -1086,7 +1108,7 @@ static int ath9k_start(struct ieee80211_
748      * and then setup of the interrupt mask.
749      */
750     spin_lock_bh(&sc->sc_resetlock);
751- r = ath9k_hw_reset(ah, init_channel, false);
752+ r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
753     if (r) {
754         ath_print(common, ATH_DBG_FATAL,
755               "Unable to reset hardware; reset status %d "
756@@ -1580,6 +1602,10 @@ static int ath9k_config(struct ieee80211
757 
758         aphy->chan_idx = pos;
759         aphy->chan_is_ht = conf_is_ht(conf);
760+ if (hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)
761+ sc->sc_flags |= SC_OP_OFFCHANNEL;
762+ else
763+ sc->sc_flags &= ~SC_OP_OFFCHANNEL;
764 
765         if (aphy->state == ATH_WIPHY_SCAN ||
766             aphy->state == ATH_WIPHY_ACTIVE)
767@@ -1991,7 +2017,6 @@ static void ath9k_sw_scan_start(struct i
768 {
769     struct ath_wiphy *aphy = hw->priv;
770     struct ath_softc *sc = aphy->sc;
771- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
772 
773     mutex_lock(&sc->mutex);
774     if (ath9k_wiphy_scanning(sc)) {
775@@ -2009,10 +2034,6 @@ static void ath9k_sw_scan_start(struct i
776     aphy->state = ATH_WIPHY_SCAN;
777     ath9k_wiphy_pause_all_forced(sc, aphy);
778     sc->sc_flags |= SC_OP_SCANNING;
779- del_timer_sync(&common->ani.timer);
780- cancel_work_sync(&sc->paprd_work);
781- cancel_work_sync(&sc->hw_check_work);
782- cancel_delayed_work_sync(&sc->tx_complete_work);
783     mutex_unlock(&sc->mutex);
784 }
785 
786@@ -2024,15 +2045,10 @@ static void ath9k_sw_scan_complete(struc
787 {
788     struct ath_wiphy *aphy = hw->priv;
789     struct ath_softc *sc = aphy->sc;
790- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
791 
792     mutex_lock(&sc->mutex);
793     aphy->state = ATH_WIPHY_ACTIVE;
794     sc->sc_flags &= ~SC_OP_SCANNING;
795- sc->sc_flags |= SC_OP_FULL_RESET;
796- ath_start_ani(common);
797- ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
798- ath_beacon_config(sc, NULL);
799     mutex_unlock(&sc->mutex);
800 }
801 
802--- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
803+++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
804@@ -577,10 +577,11 @@ static bool create_pa_curve(u32 *data_L,
805 }
806 
807 void ar9003_paprd_populate_single_table(struct ath_hw *ah,
808- struct ath9k_channel *chan, int chain)
809+ struct ath9k_hw_cal_data *caldata,
810+ int chain)
811 {
812- u32 *paprd_table_val = chan->pa_table[chain];
813- u32 small_signal_gain = chan->small_signal_gain[chain];
814+ u32 *paprd_table_val = caldata->pa_table[chain];
815+ u32 small_signal_gain = caldata->small_signal_gain[chain];
816     u32 training_power;
817     u32 reg = 0;
818     int i;
819@@ -654,17 +655,17 @@ int ar9003_paprd_setup_gain_table(struct
820 }
821 EXPORT_SYMBOL(ar9003_paprd_setup_gain_table);
822 
823-int ar9003_paprd_create_curve(struct ath_hw *ah, struct ath9k_channel *chan,
824- int chain)
825+int ar9003_paprd_create_curve(struct ath_hw *ah,
826+ struct ath9k_hw_cal_data *caldata, int chain)
827 {
828- u16 *small_signal_gain = &chan->small_signal_gain[chain];
829- u32 *pa_table = chan->pa_table[chain];
830+ u16 *small_signal_gain = &caldata->small_signal_gain[chain];
831+ u32 *pa_table = caldata->pa_table[chain];
832     u32 *data_L, *data_U;
833     int i, status = 0;
834     u32 *buf;
835     u32 reg;
836 
837- memset(chan->pa_table[chain], 0, sizeof(chan->pa_table[chain]));
838+ memset(caldata->pa_table[chain], 0, sizeof(caldata->pa_table[chain]));
839 
840     buf = kmalloc(2 * 48 * sizeof(u32), GFP_ATOMIC);
841     if (!buf)
842--- a/drivers/net/wireless/ath/ath9k/ath9k.h
843+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
844@@ -511,7 +511,7 @@ void ath_deinit_leds(struct ath_softc *s
845 #define SC_OP_BEACONS BIT(1)
846 #define SC_OP_RXAGGR BIT(2)
847 #define SC_OP_TXAGGR BIT(3)
848-#define SC_OP_FULL_RESET BIT(4)
849+#define SC_OP_OFFCHANNEL BIT(4)
850 #define SC_OP_PREAMBLE_SHORT BIT(5)
851 #define SC_OP_PROTECT_ENABLE BIT(6)
852 #define SC_OP_RXFLUSH BIT(7)
853@@ -612,6 +612,7 @@ struct ath_softc {
854 struct ath_wiphy {
855     struct ath_softc *sc; /* shared for all virtual wiphys */
856     struct ieee80211_hw *hw;
857+ struct ath9k_hw_cal_data caldata;
858     enum ath_wiphy_state {
859         ATH_WIPHY_INACTIVE,
860         ATH_WIPHY_ACTIVE,
861--- a/drivers/net/wireless/ath/ath9k/htc.h
862+++ b/drivers/net/wireless/ath/ath9k/htc.h
863@@ -353,6 +353,8 @@ struct ath9k_htc_priv {
864     u16 seq_no;
865     u32 bmiss_cnt;
866 
867+ struct ath9k_hw_cal_data caldata[38];
868+
869     spinlock_t beacon_lock;
870 
871     bool tx_queues_stop;
872--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
873+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
874@@ -125,6 +125,7 @@ static int ath9k_htc_set_channel(struct
875     struct ieee80211_conf *conf = &common->hw->conf;
876     bool fastcc = true;
877     struct ieee80211_channel *channel = hw->conf.channel;
878+ struct ath9k_hw_cal_data *caldata;
879     enum htc_phymode mode;
880     __be16 htc_mode;
881     u8 cmd_rsp;
882@@ -149,7 +150,8 @@ static int ath9k_htc_set_channel(struct
883           priv->ah->curchan->channel,
884           channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf));
885 
886- ret = ath9k_hw_reset(ah, hchan, fastcc);
887+ caldata = &priv->caldata[channel->hw_value];
888+ ret = ath9k_hw_reset(ah, hchan, caldata, fastcc);
889     if (ret) {
890         ath_print(common, ATH_DBG_FATAL,
891               "Unable to reset channel (%u Mhz) "
892@@ -1028,7 +1030,7 @@ static void ath9k_htc_radio_enable(struc
893         ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
894 
895     /* Reset the HW */
896- ret = ath9k_hw_reset(ah, ah->curchan, false);
897+ ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
898     if (ret) {
899         ath_print(common, ATH_DBG_FATAL,
900               "Unable to reset hardware; reset status %d "
901@@ -1091,7 +1093,7 @@ static void ath9k_htc_radio_disable(stru
902         ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
903 
904     /* Reset the HW */
905- ret = ath9k_hw_reset(ah, ah->curchan, false);
906+ ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
907     if (ret) {
908         ath_print(common, ATH_DBG_FATAL,
909               "Unable to reset hardware; reset status %d "
910@@ -1179,7 +1181,7 @@ static int ath9k_htc_start(struct ieee80
911     ath9k_hw_configpcipowersave(ah, 0, 0);
912 
913     ath9k_hw_htc_resetinit(ah);
914- ret = ath9k_hw_reset(ah, init_channel, false);
915+ ret = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
916     if (ret) {
917         ath_print(common, ATH_DBG_FATAL,
918               "Unable to reset hardware; reset status %d "
919--- a/drivers/net/wireless/ath/ath9k/hw.h
920+++ b/drivers/net/wireless/ath/ath9k/hw.h
921@@ -346,19 +346,25 @@ enum ath9k_int {
922      CHANNEL_HT40PLUS | \
923      CHANNEL_HT40MINUS)
924 
925-struct ath9k_channel {
926- struct ieee80211_channel *chan;
927+struct ath9k_hw_cal_data {
928     u16 channel;
929     u32 channelFlags;
930- u32 chanmode;
931     int32_t CalValid;
932- bool oneTimeCalsDone;
933     int8_t iCoff;
934     int8_t qCoff;
935     int16_t rawNoiseFloor;
936     bool paprd_done;
937+ bool nfcal_pending;
938     u16 small_signal_gain[AR9300_MAX_CHAINS];
939     u32 pa_table[AR9300_MAX_CHAINS][PAPRD_TABLE_SZ];
940+ struct ath9k_nfcal_hist nfCalHist[NUM_NF_READINGS];
941+};
942+
943+struct ath9k_channel {
944+ struct ieee80211_channel *chan;
945+ u16 channel;
946+ u32 channelFlags;
947+ u32 chanmode;
948 };
949 
950 #define IS_CHAN_G(_c) ((((_c)->channelFlags & (CHANNEL_G)) == CHANNEL_G) || \
951@@ -669,7 +675,7 @@ struct ath_hw {
952     enum nl80211_iftype opmode;
953     enum ath9k_power_mode power_mode;
954 
955- struct ath9k_nfcal_hist nfCalHist[NUM_NF_READINGS];
956+ struct ath9k_hw_cal_data *caldata;
957     struct ath9k_pacal_info pacal_info;
958     struct ar5416Stats stats;
959     struct ath9k_tx_queue_info txq[ATH9K_NUM_TX_QUEUES];
960@@ -863,7 +869,7 @@ const char *ath9k_hw_probe(u16 vendorid,
961 void ath9k_hw_deinit(struct ath_hw *ah);
962 int ath9k_hw_init(struct ath_hw *ah);
963 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
964- bool bChannelChange);
965+ struct ath9k_hw_cal_data *caldata, bool bChannelChange);
966 int ath9k_hw_fill_cap_info(struct ath_hw *ah);
967 u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan);
968 
969@@ -958,9 +964,10 @@ void ar9003_hw_bb_watchdog_read(struct a
970 void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah);
971 void ar9003_paprd_enable(struct ath_hw *ah, bool val);
972 void ar9003_paprd_populate_single_table(struct ath_hw *ah,
973- struct ath9k_channel *chan, int chain);
974-int ar9003_paprd_create_curve(struct ath_hw *ah, struct ath9k_channel *chan,
975- int chain);
976+ struct ath9k_hw_cal_data *caldata,
977+ int chain);
978+int ar9003_paprd_create_curve(struct ath_hw *ah,
979+ struct ath9k_hw_cal_data *caldata, int chain);
980 int ar9003_paprd_setup_gain_table(struct ath_hw *ah, int chain);
981 int ar9003_paprd_init_table(struct ath_hw *ah);
982 bool ar9003_paprd_is_done(struct ath_hw *ah);
983--- a/drivers/net/wireless/ath/ath9k/xmit.c
984+++ b/drivers/net/wireless/ath/ath9k/xmit.c
985@@ -1181,7 +1181,7 @@ void ath_drain_all_txq(struct ath_softc
986               "Failed to stop TX DMA. Resetting hardware!\n");
987 
988         spin_lock_bh(&sc->sc_resetlock);
989- r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false);
990+ r = ath9k_hw_reset(ah, sc->sc_ah->curchan, ah->caldata, false);
991         if (r)
992             ath_print(common, ATH_DBG_FATAL,
993                   "Unable to reset hardware; reset status %d\n",
994

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