Commit | Line | Data |
---|---|---|
f078f209 | 1 | /* |
5b68138e | 2 | * Copyright (c) 2008-2011 Atheros Communications Inc. |
f078f209 LR |
3 | * |
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. | |
7 | * | |
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. | |
15 | */ | |
16 | ||
f078f209 | 17 | #include <linux/nl80211.h> |
69081624 | 18 | #include <linux/delay.h> |
394cf0a1 | 19 | #include "ath9k.h" |
af03abec | 20 | #include "btcoex.h" |
f078f209 | 21 | |
ff37e337 S |
22 | static u8 parse_mpdudensity(u8 mpdudensity) |
23 | { | |
24 | /* | |
25 | * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": | |
26 | * 0 for no restriction | |
27 | * 1 for 1/4 us | |
28 | * 2 for 1/2 us | |
29 | * 3 for 1 us | |
30 | * 4 for 2 us | |
31 | * 5 for 4 us | |
32 | * 6 for 8 us | |
33 | * 7 for 16 us | |
34 | */ | |
35 | switch (mpdudensity) { | |
36 | case 0: | |
37 | return 0; | |
38 | case 1: | |
39 | case 2: | |
40 | case 3: | |
41 | /* Our lower layer calculations limit our precision to | |
42 | 1 microsecond */ | |
43 | return 1; | |
44 | case 4: | |
45 | return 2; | |
46 | case 5: | |
47 | return 4; | |
48 | case 6: | |
49 | return 8; | |
50 | case 7: | |
51 | return 16; | |
52 | default: | |
53 | return 0; | |
54 | } | |
55 | } | |
56 | ||
69081624 VT |
57 | static bool ath9k_has_pending_frames(struct ath_softc *sc, struct ath_txq *txq) |
58 | { | |
59 | bool pending = false; | |
60 | ||
61 | spin_lock_bh(&txq->axq_lock); | |
62 | ||
63 | if (txq->axq_depth || !list_empty(&txq->axq_acq)) | |
64 | pending = true; | |
69081624 VT |
65 | |
66 | spin_unlock_bh(&txq->axq_lock); | |
67 | return pending; | |
68 | } | |
69 | ||
55624204 | 70 | bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode) |
8c77a569 LR |
71 | { |
72 | unsigned long flags; | |
73 | bool ret; | |
74 | ||
9ecdef4b LR |
75 | spin_lock_irqsave(&sc->sc_pm_lock, flags); |
76 | ret = ath9k_hw_setpower(sc->sc_ah, mode); | |
77 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); | |
8c77a569 LR |
78 | |
79 | return ret; | |
80 | } | |
81 | ||
a91d75ae LR |
82 | void ath9k_ps_wakeup(struct ath_softc *sc) |
83 | { | |
898c914a | 84 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
a91d75ae | 85 | unsigned long flags; |
fbb078fc | 86 | enum ath9k_power_mode power_mode; |
a91d75ae LR |
87 | |
88 | spin_lock_irqsave(&sc->sc_pm_lock, flags); | |
89 | if (++sc->ps_usecount != 1) | |
90 | goto unlock; | |
91 | ||
fbb078fc | 92 | power_mode = sc->sc_ah->power_mode; |
9ecdef4b | 93 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); |
a91d75ae | 94 | |
898c914a FF |
95 | /* |
96 | * While the hardware is asleep, the cycle counters contain no | |
97 | * useful data. Better clear them now so that they don't mess up | |
98 | * survey data results. | |
99 | */ | |
fbb078fc FF |
100 | if (power_mode != ATH9K_PM_AWAKE) { |
101 | spin_lock(&common->cc_lock); | |
102 | ath_hw_cycle_counters_update(common); | |
103 | memset(&common->cc_survey, 0, sizeof(common->cc_survey)); | |
104 | spin_unlock(&common->cc_lock); | |
105 | } | |
898c914a | 106 | |
a91d75ae LR |
107 | unlock: |
108 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); | |
109 | } | |
110 | ||
111 | void ath9k_ps_restore(struct ath_softc *sc) | |
112 | { | |
898c914a | 113 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
a91d75ae LR |
114 | unsigned long flags; |
115 | ||
116 | spin_lock_irqsave(&sc->sc_pm_lock, flags); | |
117 | if (--sc->ps_usecount != 0) | |
118 | goto unlock; | |
119 | ||
898c914a FF |
120 | spin_lock(&common->cc_lock); |
121 | ath_hw_cycle_counters_update(common); | |
122 | spin_unlock(&common->cc_lock); | |
123 | ||
1dbfd9d4 VN |
124 | if (sc->ps_idle) |
125 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP); | |
126 | else if (sc->ps_enabled && | |
127 | !(sc->ps_flags & (PS_WAIT_FOR_BEACON | | |
1b04b930 S |
128 | PS_WAIT_FOR_CAB | |
129 | PS_WAIT_FOR_PSPOLL_DATA | | |
130 | PS_WAIT_FOR_TX_ACK))) | |
9ecdef4b | 131 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); |
a91d75ae LR |
132 | |
133 | unlock: | |
134 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); | |
135 | } | |
136 | ||
5ee08656 FF |
137 | static void ath_start_ani(struct ath_common *common) |
138 | { | |
139 | struct ath_hw *ah = common->ah; | |
140 | unsigned long timestamp = jiffies_to_msecs(jiffies); | |
141 | struct ath_softc *sc = (struct ath_softc *) common->priv; | |
142 | ||
143 | if (!(sc->sc_flags & SC_OP_ANI_RUN)) | |
144 | return; | |
145 | ||
146 | if (sc->sc_flags & SC_OP_OFFCHANNEL) | |
147 | return; | |
148 | ||
149 | common->ani.longcal_timer = timestamp; | |
150 | common->ani.shortcal_timer = timestamp; | |
151 | common->ani.checkani_timer = timestamp; | |
152 | ||
153 | mod_timer(&common->ani.timer, | |
154 | jiffies + | |
155 | msecs_to_jiffies((u32)ah->config.ani_poll_interval)); | |
156 | } | |
157 | ||
3430098a FF |
158 | static void ath_update_survey_nf(struct ath_softc *sc, int channel) |
159 | { | |
160 | struct ath_hw *ah = sc->sc_ah; | |
161 | struct ath9k_channel *chan = &ah->channels[channel]; | |
162 | struct survey_info *survey = &sc->survey[channel]; | |
163 | ||
164 | if (chan->noisefloor) { | |
165 | survey->filled |= SURVEY_INFO_NOISE_DBM; | |
166 | survey->noise = chan->noisefloor; | |
167 | } | |
168 | } | |
169 | ||
cb8d61de FF |
170 | /* |
171 | * Updates the survey statistics and returns the busy time since last | |
172 | * update in %, if the measurement duration was long enough for the | |
173 | * result to be useful, -1 otherwise. | |
174 | */ | |
175 | static int ath_update_survey_stats(struct ath_softc *sc) | |
3430098a FF |
176 | { |
177 | struct ath_hw *ah = sc->sc_ah; | |
178 | struct ath_common *common = ath9k_hw_common(ah); | |
179 | int pos = ah->curchan - &ah->channels[0]; | |
180 | struct survey_info *survey = &sc->survey[pos]; | |
181 | struct ath_cycle_counters *cc = &common->cc_survey; | |
182 | unsigned int div = common->clockrate * 1000; | |
cb8d61de | 183 | int ret = 0; |
3430098a | 184 | |
0845735e | 185 | if (!ah->curchan) |
cb8d61de | 186 | return -1; |
0845735e | 187 | |
898c914a FF |
188 | if (ah->power_mode == ATH9K_PM_AWAKE) |
189 | ath_hw_cycle_counters_update(common); | |
3430098a FF |
190 | |
191 | if (cc->cycles > 0) { | |
192 | survey->filled |= SURVEY_INFO_CHANNEL_TIME | | |
193 | SURVEY_INFO_CHANNEL_TIME_BUSY | | |
194 | SURVEY_INFO_CHANNEL_TIME_RX | | |
195 | SURVEY_INFO_CHANNEL_TIME_TX; | |
196 | survey->channel_time += cc->cycles / div; | |
197 | survey->channel_time_busy += cc->rx_busy / div; | |
198 | survey->channel_time_rx += cc->rx_frame / div; | |
199 | survey->channel_time_tx += cc->tx_frame / div; | |
200 | } | |
cb8d61de FF |
201 | |
202 | if (cc->cycles < div) | |
203 | return -1; | |
204 | ||
205 | if (cc->cycles > 0) | |
206 | ret = cc->rx_busy * 100 / cc->cycles; | |
207 | ||
3430098a FF |
208 | memset(cc, 0, sizeof(*cc)); |
209 | ||
210 | ath_update_survey_nf(sc, pos); | |
cb8d61de FF |
211 | |
212 | return ret; | |
3430098a FF |
213 | } |
214 | ||
ff37e337 S |
215 | /* |
216 | * Set/change channels. If the channel is really being changed, it's done | |
217 | * by reseting the chip. To accomplish this we must first cleanup any pending | |
218 | * DMA, then restart stuff. | |
219 | */ | |
0e2dedf9 JM |
220 | int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, |
221 | struct ath9k_channel *hchan) | |
ff37e337 | 222 | { |
cbe61d8a | 223 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 224 | struct ath_common *common = ath9k_hw_common(ah); |
25c56eec | 225 | struct ieee80211_conf *conf = &common->hw->conf; |
ff37e337 | 226 | bool fastcc = true, stopped; |
ae8d2858 | 227 | struct ieee80211_channel *channel = hw->conf.channel; |
20bd2a09 | 228 | struct ath9k_hw_cal_data *caldata = NULL; |
ae8d2858 | 229 | int r; |
ff37e337 S |
230 | |
231 | if (sc->sc_flags & SC_OP_INVALID) | |
232 | return -EIO; | |
233 | ||
cb8d61de FF |
234 | sc->hw_busy_count = 0; |
235 | ||
5ee08656 FF |
236 | del_timer_sync(&common->ani.timer); |
237 | cancel_work_sync(&sc->paprd_work); | |
238 | cancel_work_sync(&sc->hw_check_work); | |
239 | cancel_delayed_work_sync(&sc->tx_complete_work); | |
181fb18d | 240 | cancel_delayed_work_sync(&sc->hw_pll_work); |
5ee08656 | 241 | |
3cbb5dd7 VN |
242 | ath9k_ps_wakeup(sc); |
243 | ||
6a6733f2 LR |
244 | spin_lock_bh(&sc->sc_pcu_lock); |
245 | ||
c0d7c7af LR |
246 | /* |
247 | * This is only performed if the channel settings have | |
248 | * actually changed. | |
249 | * | |
250 | * To switch channels clear any pending DMA operations; | |
251 | * wait long enough for the RX fifo to drain, reset the | |
252 | * hardware at the new frequency, and then re-enable | |
253 | * the relevant bits of the h/w. | |
254 | */ | |
4df3071e | 255 | ath9k_hw_disable_interrupts(ah); |
080e1a25 | 256 | stopped = ath_drain_all_txq(sc, false); |
5e848f78 | 257 | |
080e1a25 FF |
258 | if (!ath_stoprecv(sc)) |
259 | stopped = false; | |
ff37e337 | 260 | |
8b3f4616 FF |
261 | if (!ath9k_hw_check_alive(ah)) |
262 | stopped = false; | |
263 | ||
c0d7c7af LR |
264 | /* XXX: do not flush receive queue here. We don't want |
265 | * to flush data frames already in queue because of | |
266 | * changing channel. */ | |
ff37e337 | 267 | |
5ee08656 | 268 | if (!stopped || !(sc->sc_flags & SC_OP_OFFCHANNEL)) |
c0d7c7af LR |
269 | fastcc = false; |
270 | ||
20bd2a09 | 271 | if (!(sc->sc_flags & SC_OP_OFFCHANNEL)) |
9ac58615 | 272 | caldata = &sc->caldata; |
20bd2a09 | 273 | |
226afe68 JP |
274 | ath_dbg(common, ATH_DBG_CONFIG, |
275 | "(%u MHz) -> (%u MHz), conf_is_ht40: %d fastcc: %d\n", | |
276 | sc->sc_ah->curchan->channel, | |
277 | channel->center_freq, conf_is_ht40(conf), | |
278 | fastcc); | |
ff37e337 | 279 | |
20bd2a09 | 280 | r = ath9k_hw_reset(ah, hchan, caldata, fastcc); |
c0d7c7af | 281 | if (r) { |
3800276a JP |
282 | ath_err(common, |
283 | "Unable to reset channel (%u MHz), reset status %d\n", | |
284 | channel->center_freq, r); | |
3989279c | 285 | goto ps_restore; |
ff37e337 | 286 | } |
c0d7c7af | 287 | |
c0d7c7af | 288 | if (ath_startrecv(sc) != 0) { |
3800276a | 289 | ath_err(common, "Unable to restart recv logic\n"); |
3989279c GJ |
290 | r = -EIO; |
291 | goto ps_restore; | |
c0d7c7af LR |
292 | } |
293 | ||
5048e8c3 RM |
294 | ath9k_cmn_update_txpow(ah, sc->curtxpow, |
295 | sc->config.txpowlimit, &sc->curtxpow); | |
3069168c | 296 | ath9k_hw_set_interrupts(ah, ah->imask); |
3989279c | 297 | |
48a6a468 | 298 | if (!(sc->sc_flags & (SC_OP_OFFCHANNEL))) { |
1186488b | 299 | if (sc->sc_flags & SC_OP_BEACONS) |
99e4d43a | 300 | ath_set_beacon(sc); |
5ee08656 | 301 | ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); |
181fb18d | 302 | ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work, HZ/2); |
48a6a468 | 303 | ath_start_ani(common); |
5ee08656 FF |
304 | } |
305 | ||
3989279c | 306 | ps_restore: |
92460412 FF |
307 | ieee80211_wake_queues(hw); |
308 | ||
6a6733f2 LR |
309 | spin_unlock_bh(&sc->sc_pcu_lock); |
310 | ||
3cbb5dd7 | 311 | ath9k_ps_restore(sc); |
3989279c | 312 | return r; |
ff37e337 S |
313 | } |
314 | ||
9f42c2b6 FF |
315 | static void ath_paprd_activate(struct ath_softc *sc) |
316 | { | |
317 | struct ath_hw *ah = sc->sc_ah; | |
20bd2a09 | 318 | struct ath9k_hw_cal_data *caldata = ah->caldata; |
9094537c | 319 | struct ath_common *common = ath9k_hw_common(ah); |
9f42c2b6 FF |
320 | int chain; |
321 | ||
20bd2a09 | 322 | if (!caldata || !caldata->paprd_done) |
9f42c2b6 FF |
323 | return; |
324 | ||
325 | ath9k_ps_wakeup(sc); | |
ddfef792 | 326 | ar9003_paprd_enable(ah, false); |
9f42c2b6 | 327 | for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { |
9094537c | 328 | if (!(common->tx_chainmask & BIT(chain))) |
9f42c2b6 FF |
329 | continue; |
330 | ||
20bd2a09 | 331 | ar9003_paprd_populate_single_table(ah, caldata, chain); |
9f42c2b6 FF |
332 | } |
333 | ||
334 | ar9003_paprd_enable(ah, true); | |
335 | ath9k_ps_restore(sc); | |
336 | } | |
337 | ||
7607cbe2 FF |
338 | static bool ath_paprd_send_frame(struct ath_softc *sc, struct sk_buff *skb, int chain) |
339 | { | |
340 | struct ieee80211_hw *hw = sc->hw; | |
341 | struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); | |
47960077 MSS |
342 | struct ath_hw *ah = sc->sc_ah; |
343 | struct ath_common *common = ath9k_hw_common(ah); | |
7607cbe2 FF |
344 | struct ath_tx_control txctl; |
345 | int time_left; | |
346 | ||
347 | memset(&txctl, 0, sizeof(txctl)); | |
348 | txctl.txq = sc->tx.txq_map[WME_AC_BE]; | |
349 | ||
350 | memset(tx_info, 0, sizeof(*tx_info)); | |
351 | tx_info->band = hw->conf.channel->band; | |
352 | tx_info->flags |= IEEE80211_TX_CTL_NO_ACK; | |
353 | tx_info->control.rates[0].idx = 0; | |
354 | tx_info->control.rates[0].count = 1; | |
355 | tx_info->control.rates[0].flags = IEEE80211_TX_RC_MCS; | |
356 | tx_info->control.rates[1].idx = -1; | |
357 | ||
358 | init_completion(&sc->paprd_complete); | |
7607cbe2 | 359 | txctl.paprd = BIT(chain); |
47960077 MSS |
360 | |
361 | if (ath_tx_start(hw, skb, &txctl) != 0) { | |
362 | ath_dbg(common, ATH_DBG_XMIT, "PAPRD TX failed\n"); | |
363 | dev_kfree_skb_any(skb); | |
7607cbe2 | 364 | return false; |
47960077 | 365 | } |
7607cbe2 FF |
366 | |
367 | time_left = wait_for_completion_timeout(&sc->paprd_complete, | |
368 | msecs_to_jiffies(ATH_PAPRD_TIMEOUT)); | |
7607cbe2 FF |
369 | |
370 | if (!time_left) | |
371 | ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_CALIBRATE, | |
372 | "Timeout waiting for paprd training on TX chain %d\n", | |
373 | chain); | |
374 | ||
375 | return !!time_left; | |
376 | } | |
377 | ||
9f42c2b6 FF |
378 | void ath_paprd_calibrate(struct work_struct *work) |
379 | { | |
380 | struct ath_softc *sc = container_of(work, struct ath_softc, paprd_work); | |
381 | struct ieee80211_hw *hw = sc->hw; | |
382 | struct ath_hw *ah = sc->sc_ah; | |
383 | struct ieee80211_hdr *hdr; | |
384 | struct sk_buff *skb = NULL; | |
20bd2a09 | 385 | struct ath9k_hw_cal_data *caldata = ah->caldata; |
9094537c | 386 | struct ath_common *common = ath9k_hw_common(ah); |
066dae93 | 387 | int ftype; |
9f42c2b6 FF |
388 | int chain_ok = 0; |
389 | int chain; | |
390 | int len = 1800; | |
9f42c2b6 | 391 | |
20bd2a09 FF |
392 | if (!caldata) |
393 | return; | |
394 | ||
1bf38661 FF |
395 | if (ar9003_paprd_init_table(ah) < 0) |
396 | return; | |
397 | ||
9f42c2b6 FF |
398 | skb = alloc_skb(len, GFP_KERNEL); |
399 | if (!skb) | |
400 | return; | |
401 | ||
9f42c2b6 FF |
402 | skb_put(skb, len); |
403 | memset(skb->data, 0, len); | |
404 | hdr = (struct ieee80211_hdr *)skb->data; | |
405 | ftype = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC; | |
406 | hdr->frame_control = cpu_to_le16(ftype); | |
a3d3da14 | 407 | hdr->duration_id = cpu_to_le16(10); |
9f42c2b6 FF |
408 | memcpy(hdr->addr1, hw->wiphy->perm_addr, ETH_ALEN); |
409 | memcpy(hdr->addr2, hw->wiphy->perm_addr, ETH_ALEN); | |
410 | memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN); | |
411 | ||
47399f1a | 412 | ath9k_ps_wakeup(sc); |
9f42c2b6 | 413 | for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { |
9094537c | 414 | if (!(common->tx_chainmask & BIT(chain))) |
9f42c2b6 FF |
415 | continue; |
416 | ||
417 | chain_ok = 0; | |
9f42c2b6 | 418 | |
7607cbe2 FF |
419 | ath_dbg(common, ATH_DBG_CALIBRATE, |
420 | "Sending PAPRD frame for thermal measurement " | |
421 | "on chain %d\n", chain); | |
422 | if (!ath_paprd_send_frame(sc, skb, chain)) | |
423 | goto fail_paprd; | |
9f42c2b6 | 424 | |
9f42c2b6 | 425 | ar9003_paprd_setup_gain_table(ah, chain); |
9f42c2b6 | 426 | |
7607cbe2 FF |
427 | ath_dbg(common, ATH_DBG_CALIBRATE, |
428 | "Sending PAPRD training frame on chain %d\n", chain); | |
429 | if (!ath_paprd_send_frame(sc, skb, chain)) | |
ca369eb4 | 430 | goto fail_paprd; |
9f42c2b6 FF |
431 | |
432 | if (!ar9003_paprd_is_done(ah)) | |
433 | break; | |
434 | ||
20bd2a09 | 435 | if (ar9003_paprd_create_curve(ah, caldata, chain) != 0) |
9f42c2b6 FF |
436 | break; |
437 | ||
438 | chain_ok = 1; | |
439 | } | |
440 | kfree_skb(skb); | |
441 | ||
442 | if (chain_ok) { | |
20bd2a09 | 443 | caldata->paprd_done = true; |
9f42c2b6 FF |
444 | ath_paprd_activate(sc); |
445 | } | |
446 | ||
ca369eb4 | 447 | fail_paprd: |
9f42c2b6 FF |
448 | ath9k_ps_restore(sc); |
449 | } | |
450 | ||
ff37e337 S |
451 | /* |
452 | * This routine performs the periodic noise floor calibration function | |
453 | * that is used to adjust and optimize the chip performance. This | |
454 | * takes environmental changes (location, temperature) into account. | |
455 | * When the task is complete, it reschedules itself depending on the | |
456 | * appropriate interval that was calculated. | |
457 | */ | |
55624204 | 458 | void ath_ani_calibrate(unsigned long data) |
ff37e337 | 459 | { |
20977d3e S |
460 | struct ath_softc *sc = (struct ath_softc *)data; |
461 | struct ath_hw *ah = sc->sc_ah; | |
c46917bb | 462 | struct ath_common *common = ath9k_hw_common(ah); |
ff37e337 S |
463 | bool longcal = false; |
464 | bool shortcal = false; | |
465 | bool aniflag = false; | |
466 | unsigned int timestamp = jiffies_to_msecs(jiffies); | |
6044474e | 467 | u32 cal_interval, short_cal_interval, long_cal_interval; |
b5bfc568 | 468 | unsigned long flags; |
6044474e FF |
469 | |
470 | if (ah->caldata && ah->caldata->nfcal_interference) | |
471 | long_cal_interval = ATH_LONG_CALINTERVAL_INT; | |
472 | else | |
473 | long_cal_interval = ATH_LONG_CALINTERVAL; | |
ff37e337 | 474 | |
20977d3e S |
475 | short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? |
476 | ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; | |
ff37e337 | 477 | |
1ffc1c61 JM |
478 | /* Only calibrate if awake */ |
479 | if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) | |
480 | goto set_timer; | |
481 | ||
482 | ath9k_ps_wakeup(sc); | |
483 | ||
ff37e337 | 484 | /* Long calibration runs independently of short calibration. */ |
6044474e | 485 | if ((timestamp - common->ani.longcal_timer) >= long_cal_interval) { |
ff37e337 | 486 | longcal = true; |
226afe68 | 487 | ath_dbg(common, ATH_DBG_ANI, "longcal @%lu\n", jiffies); |
3d536acf | 488 | common->ani.longcal_timer = timestamp; |
ff37e337 S |
489 | } |
490 | ||
17d7904d | 491 | /* Short calibration applies only while caldone is false */ |
3d536acf LR |
492 | if (!common->ani.caldone) { |
493 | if ((timestamp - common->ani.shortcal_timer) >= short_cal_interval) { | |
ff37e337 | 494 | shortcal = true; |
226afe68 JP |
495 | ath_dbg(common, ATH_DBG_ANI, |
496 | "shortcal @%lu\n", jiffies); | |
3d536acf LR |
497 | common->ani.shortcal_timer = timestamp; |
498 | common->ani.resetcal_timer = timestamp; | |
ff37e337 S |
499 | } |
500 | } else { | |
3d536acf | 501 | if ((timestamp - common->ani.resetcal_timer) >= |
ff37e337 | 502 | ATH_RESTART_CALINTERVAL) { |
3d536acf LR |
503 | common->ani.caldone = ath9k_hw_reset_calvalid(ah); |
504 | if (common->ani.caldone) | |
505 | common->ani.resetcal_timer = timestamp; | |
ff37e337 S |
506 | } |
507 | } | |
508 | ||
509 | /* Verify whether we must check ANI */ | |
e36b27af LR |
510 | if ((timestamp - common->ani.checkani_timer) >= |
511 | ah->config.ani_poll_interval) { | |
ff37e337 | 512 | aniflag = true; |
3d536acf | 513 | common->ani.checkani_timer = timestamp; |
ff37e337 S |
514 | } |
515 | ||
e62ddec9 MSS |
516 | /* Call ANI routine if necessary */ |
517 | if (aniflag) { | |
518 | spin_lock_irqsave(&common->cc_lock, flags); | |
519 | ath9k_hw_ani_monitor(ah, ah->curchan); | |
520 | ath_update_survey_stats(sc); | |
521 | spin_unlock_irqrestore(&common->cc_lock, flags); | |
522 | } | |
ff37e337 | 523 | |
e62ddec9 MSS |
524 | /* Perform calibration if necessary */ |
525 | if (longcal || shortcal) { | |
526 | common->ani.caldone = | |
527 | ath9k_hw_calibrate(ah, ah->curchan, | |
528 | common->rx_chainmask, longcal); | |
ff37e337 S |
529 | } |
530 | ||
1ffc1c61 JM |
531 | ath9k_ps_restore(sc); |
532 | ||
20977d3e | 533 | set_timer: |
ff37e337 S |
534 | /* |
535 | * Set timer interval based on previous results. | |
536 | * The interval must be the shortest necessary to satisfy ANI, | |
537 | * short calibration and long calibration. | |
538 | */ | |
aac9207e | 539 | cal_interval = ATH_LONG_CALINTERVAL; |
2660b81a | 540 | if (sc->sc_ah->config.enable_ani) |
e36b27af LR |
541 | cal_interval = min(cal_interval, |
542 | (u32)ah->config.ani_poll_interval); | |
3d536acf | 543 | if (!common->ani.caldone) |
20977d3e | 544 | cal_interval = min(cal_interval, (u32)short_cal_interval); |
ff37e337 | 545 | |
3d536acf | 546 | mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); |
20bd2a09 FF |
547 | if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && ah->caldata) { |
548 | if (!ah->caldata->paprd_done) | |
9f42c2b6 | 549 | ieee80211_queue_work(sc->hw, &sc->paprd_work); |
45ef6a0b | 550 | else if (!ah->paprd_table_write_done) |
9f42c2b6 FF |
551 | ath_paprd_activate(sc); |
552 | } | |
ff37e337 S |
553 | } |
554 | ||
ff37e337 S |
555 | static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) |
556 | { | |
557 | struct ath_node *an; | |
ea066d5a | 558 | struct ath_hw *ah = sc->sc_ah; |
ff37e337 S |
559 | an = (struct ath_node *)sta->drv_priv; |
560 | ||
7f010c93 BG |
561 | #ifdef CONFIG_ATH9K_DEBUGFS |
562 | spin_lock(&sc->nodes_lock); | |
563 | list_add(&an->list, &sc->nodes); | |
564 | spin_unlock(&sc->nodes_lock); | |
565 | an->sta = sta; | |
566 | #endif | |
ea066d5a MSS |
567 | if ((ah->caps.hw_caps) & ATH9K_HW_CAP_APM) |
568 | sc->sc_flags |= SC_OP_ENABLE_APM; | |
569 | ||
87792efc | 570 | if (sc->sc_flags & SC_OP_TXAGGR) { |
ff37e337 | 571 | ath_tx_node_init(sc, an); |
9e98ac65 | 572 | an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + |
87792efc S |
573 | sta->ht_cap.ampdu_factor); |
574 | an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density); | |
575 | } | |
ff37e337 S |
576 | } |
577 | ||
578 | static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) | |
579 | { | |
580 | struct ath_node *an = (struct ath_node *)sta->drv_priv; | |
581 | ||
7f010c93 BG |
582 | #ifdef CONFIG_ATH9K_DEBUGFS |
583 | spin_lock(&sc->nodes_lock); | |
584 | list_del(&an->list); | |
585 | spin_unlock(&sc->nodes_lock); | |
586 | an->sta = NULL; | |
587 | #endif | |
588 | ||
ff37e337 S |
589 | if (sc->sc_flags & SC_OP_TXAGGR) |
590 | ath_tx_node_cleanup(sc, an); | |
591 | } | |
592 | ||
347809fc FF |
593 | void ath_hw_check(struct work_struct *work) |
594 | { | |
595 | struct ath_softc *sc = container_of(work, struct ath_softc, hw_check_work); | |
cb8d61de FF |
596 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
597 | unsigned long flags; | |
598 | int busy; | |
347809fc FF |
599 | |
600 | ath9k_ps_wakeup(sc); | |
cb8d61de FF |
601 | if (ath9k_hw_check_alive(sc->sc_ah)) |
602 | goto out; | |
347809fc | 603 | |
cb8d61de FF |
604 | spin_lock_irqsave(&common->cc_lock, flags); |
605 | busy = ath_update_survey_stats(sc); | |
606 | spin_unlock_irqrestore(&common->cc_lock, flags); | |
347809fc | 607 | |
cb8d61de FF |
608 | ath_dbg(common, ATH_DBG_RESET, "Possible baseband hang, " |
609 | "busy=%d (try %d)\n", busy, sc->hw_busy_count + 1); | |
610 | if (busy >= 99) { | |
611 | if (++sc->hw_busy_count >= 3) | |
612 | ath_reset(sc, true); | |
613 | } else if (busy >= 0) | |
614 | sc->hw_busy_count = 0; | |
347809fc FF |
615 | |
616 | out: | |
617 | ath9k_ps_restore(sc); | |
618 | } | |
619 | ||
b84628eb SB |
620 | static void ath_hw_pll_rx_hang_check(struct ath_softc *sc, u32 pll_sqsum) |
621 | { | |
622 | static int count; | |
623 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); | |
624 | ||
625 | if (pll_sqsum >= 0x40000) { | |
626 | count++; | |
627 | if (count == 3) { | |
628 | /* Rx is hung for more than 500ms. Reset it */ | |
629 | ath_dbg(common, ATH_DBG_RESET, | |
630 | "Possible RX hang, resetting"); | |
631 | ath_reset(sc, true); | |
632 | count = 0; | |
633 | } | |
634 | } else | |
635 | count = 0; | |
636 | } | |
637 | ||
9eab61c2 SB |
638 | void ath_hw_pll_work(struct work_struct *work) |
639 | { | |
640 | struct ath_softc *sc = container_of(work, struct ath_softc, | |
641 | hw_pll_work.work); | |
b84628eb | 642 | u32 pll_sqsum; |
9eab61c2 SB |
643 | |
644 | if (AR_SREV_9485(sc->sc_ah)) { | |
b84628eb SB |
645 | |
646 | ath9k_ps_wakeup(sc); | |
647 | pll_sqsum = ar9003_get_pll_sqsum_dvc(sc->sc_ah); | |
648 | ath9k_ps_restore(sc); | |
649 | ||
650 | ath_hw_pll_rx_hang_check(sc, pll_sqsum); | |
9eab61c2 SB |
651 | |
652 | ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work, HZ/5); | |
653 | } | |
654 | } | |
655 | ||
656 | ||
55624204 | 657 | void ath9k_tasklet(unsigned long data) |
ff37e337 S |
658 | { |
659 | struct ath_softc *sc = (struct ath_softc *)data; | |
af03abec | 660 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 661 | struct ath_common *common = ath9k_hw_common(ah); |
af03abec | 662 | |
17d7904d | 663 | u32 status = sc->intrstatus; |
b5c80475 | 664 | u32 rxmask; |
ff37e337 | 665 | |
a4d86d95 RM |
666 | if ((status & ATH9K_INT_FATAL) || |
667 | (status & ATH9K_INT_BB_WATCHDOG)) { | |
fac6b6a0 | 668 | ath_reset(sc, true); |
ff37e337 | 669 | return; |
063d8be3 | 670 | } |
ff37e337 | 671 | |
783cd01e | 672 | ath9k_ps_wakeup(sc); |
52671e43 | 673 | spin_lock(&sc->sc_pcu_lock); |
6a6733f2 | 674 | |
8b3f4616 FF |
675 | /* |
676 | * Only run the baseband hang check if beacons stop working in AP or | |
677 | * IBSS mode, because it has a high false positive rate. For station | |
678 | * mode it should not be necessary, since the upper layers will detect | |
679 | * this through a beacon miss automatically and the following channel | |
680 | * change will trigger a hardware reset anyway | |
681 | */ | |
682 | if (ath9k_hw_numtxpending(ah, sc->beacon.beaconq) != 0 && | |
683 | !ath9k_hw_check_alive(ah)) | |
347809fc FF |
684 | ieee80211_queue_work(sc->hw, &sc->hw_check_work); |
685 | ||
4105f807 RM |
686 | if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) { |
687 | /* | |
688 | * TSF sync does not look correct; remain awake to sync with | |
689 | * the next Beacon. | |
690 | */ | |
691 | ath_dbg(common, ATH_DBG_PS, | |
692 | "TSFOOR - Sync with next Beacon\n"); | |
693 | sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC | | |
694 | PS_TSFOOR_SYNC; | |
695 | } | |
696 | ||
b5c80475 FF |
697 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) |
698 | rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL | | |
699 | ATH9K_INT_RXORN); | |
700 | else | |
701 | rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN); | |
702 | ||
703 | if (status & rxmask) { | |
b5c80475 FF |
704 | /* Check for high priority Rx first */ |
705 | if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) && | |
706 | (status & ATH9K_INT_RXHP)) | |
707 | ath_rx_tasklet(sc, 0, true); | |
708 | ||
709 | ath_rx_tasklet(sc, 0, false); | |
ff37e337 S |
710 | } |
711 | ||
e5003249 VT |
712 | if (status & ATH9K_INT_TX) { |
713 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) | |
714 | ath_tx_edma_tasklet(sc); | |
715 | else | |
716 | ath_tx_tasklet(sc); | |
717 | } | |
063d8be3 | 718 | |
766ec4a9 | 719 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
ebb8e1d7 VT |
720 | if (status & ATH9K_INT_GENTIMER) |
721 | ath_gen_timer_isr(sc->sc_ah); | |
722 | ||
ff37e337 | 723 | /* re-enable hardware interrupt */ |
4df3071e | 724 | ath9k_hw_enable_interrupts(ah); |
6a6733f2 | 725 | |
52671e43 | 726 | spin_unlock(&sc->sc_pcu_lock); |
153e080d | 727 | ath9k_ps_restore(sc); |
ff37e337 S |
728 | } |
729 | ||
6baff7f9 | 730 | irqreturn_t ath_isr(int irq, void *dev) |
ff37e337 | 731 | { |
063d8be3 S |
732 | #define SCHED_INTR ( \ |
733 | ATH9K_INT_FATAL | \ | |
a4d86d95 | 734 | ATH9K_INT_BB_WATCHDOG | \ |
063d8be3 S |
735 | ATH9K_INT_RXORN | \ |
736 | ATH9K_INT_RXEOL | \ | |
737 | ATH9K_INT_RX | \ | |
b5c80475 FF |
738 | ATH9K_INT_RXLP | \ |
739 | ATH9K_INT_RXHP | \ | |
063d8be3 S |
740 | ATH9K_INT_TX | \ |
741 | ATH9K_INT_BMISS | \ | |
742 | ATH9K_INT_CST | \ | |
ebb8e1d7 VT |
743 | ATH9K_INT_TSFOOR | \ |
744 | ATH9K_INT_GENTIMER) | |
063d8be3 | 745 | |
ff37e337 | 746 | struct ath_softc *sc = dev; |
cbe61d8a | 747 | struct ath_hw *ah = sc->sc_ah; |
b5bfc568 | 748 | struct ath_common *common = ath9k_hw_common(ah); |
ff37e337 S |
749 | enum ath9k_int status; |
750 | bool sched = false; | |
751 | ||
063d8be3 S |
752 | /* |
753 | * The hardware is not ready/present, don't | |
754 | * touch anything. Note this can happen early | |
755 | * on if the IRQ is shared. | |
756 | */ | |
757 | if (sc->sc_flags & SC_OP_INVALID) | |
758 | return IRQ_NONE; | |
ff37e337 | 759 | |
063d8be3 S |
760 | |
761 | /* shared irq, not for us */ | |
762 | ||
153e080d | 763 | if (!ath9k_hw_intrpend(ah)) |
063d8be3 | 764 | return IRQ_NONE; |
063d8be3 S |
765 | |
766 | /* | |
767 | * Figure out the reason(s) for the interrupt. Note | |
768 | * that the hal returns a pseudo-ISR that may include | |
769 | * bits we haven't explicitly enabled so we mask the | |
770 | * value to insure we only process bits we requested. | |
771 | */ | |
772 | ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ | |
3069168c | 773 | status &= ah->imask; /* discard unasked-for bits */ |
ff37e337 | 774 | |
063d8be3 S |
775 | /* |
776 | * If there are no status bits set, then this interrupt was not | |
777 | * for me (should have been caught above). | |
778 | */ | |
153e080d | 779 | if (!status) |
063d8be3 | 780 | return IRQ_NONE; |
ff37e337 | 781 | |
063d8be3 S |
782 | /* Cache the status */ |
783 | sc->intrstatus = status; | |
784 | ||
785 | if (status & SCHED_INTR) | |
786 | sched = true; | |
787 | ||
788 | /* | |
789 | * If a FATAL or RXORN interrupt is received, we have to reset the | |
790 | * chip immediately. | |
791 | */ | |
b5c80475 FF |
792 | if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) && |
793 | !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA))) | |
063d8be3 S |
794 | goto chip_reset; |
795 | ||
08578b8f LR |
796 | if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) && |
797 | (status & ATH9K_INT_BB_WATCHDOG)) { | |
b5bfc568 FF |
798 | |
799 | spin_lock(&common->cc_lock); | |
800 | ath_hw_cycle_counters_update(common); | |
08578b8f | 801 | ar9003_hw_bb_watchdog_dbg_info(ah); |
b5bfc568 FF |
802 | spin_unlock(&common->cc_lock); |
803 | ||
08578b8f LR |
804 | goto chip_reset; |
805 | } | |
806 | ||
063d8be3 S |
807 | if (status & ATH9K_INT_SWBA) |
808 | tasklet_schedule(&sc->bcon_tasklet); | |
809 | ||
810 | if (status & ATH9K_INT_TXURN) | |
811 | ath9k_hw_updatetxtriglevel(ah, true); | |
812 | ||
b5c80475 FF |
813 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { |
814 | if (status & ATH9K_INT_RXEOL) { | |
815 | ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN); | |
816 | ath9k_hw_set_interrupts(ah, ah->imask); | |
817 | } | |
818 | } | |
819 | ||
063d8be3 | 820 | if (status & ATH9K_INT_MIB) { |
ff37e337 | 821 | /* |
063d8be3 S |
822 | * Disable interrupts until we service the MIB |
823 | * interrupt; otherwise it will continue to | |
824 | * fire. | |
ff37e337 | 825 | */ |
4df3071e | 826 | ath9k_hw_disable_interrupts(ah); |
063d8be3 S |
827 | /* |
828 | * Let the hal handle the event. We assume | |
829 | * it will clear whatever condition caused | |
830 | * the interrupt. | |
831 | */ | |
88eac2da | 832 | spin_lock(&common->cc_lock); |
bfc472bb | 833 | ath9k_hw_proc_mib_event(ah); |
88eac2da | 834 | spin_unlock(&common->cc_lock); |
4df3071e | 835 | ath9k_hw_enable_interrupts(ah); |
063d8be3 | 836 | } |
ff37e337 | 837 | |
153e080d VT |
838 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
839 | if (status & ATH9K_INT_TIM_TIMER) { | |
ff9f0b63 LR |
840 | if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle)) |
841 | goto chip_reset; | |
063d8be3 S |
842 | /* Clear RxAbort bit so that we can |
843 | * receive frames */ | |
9ecdef4b | 844 | ath9k_setpower(sc, ATH9K_PM_AWAKE); |
153e080d | 845 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
1b04b930 | 846 | sc->ps_flags |= PS_WAIT_FOR_BEACON; |
ff37e337 | 847 | } |
063d8be3 S |
848 | |
849 | chip_reset: | |
ff37e337 | 850 | |
817e11de S |
851 | ath_debug_stat_interrupt(sc, status); |
852 | ||
ff37e337 | 853 | if (sched) { |
4df3071e FF |
854 | /* turn off every interrupt */ |
855 | ath9k_hw_disable_interrupts(ah); | |
ff37e337 S |
856 | tasklet_schedule(&sc->intr_tq); |
857 | } | |
858 | ||
859 | return IRQ_HANDLED; | |
063d8be3 S |
860 | |
861 | #undef SCHED_INTR | |
ff37e337 S |
862 | } |
863 | ||
68a89116 | 864 | void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw) |
500c064d | 865 | { |
cbe61d8a | 866 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 867 | struct ath_common *common = ath9k_hw_common(ah); |
68a89116 | 868 | struct ieee80211_channel *channel = hw->conf.channel; |
ae8d2858 | 869 | int r; |
500c064d | 870 | |
3cbb5dd7 | 871 | ath9k_ps_wakeup(sc); |
6a6733f2 LR |
872 | spin_lock_bh(&sc->sc_pcu_lock); |
873 | ||
93b1b37f | 874 | ath9k_hw_configpcipowersave(ah, 0, 0); |
ae8d2858 | 875 | |
159cd468 | 876 | if (!ah->curchan) |
c344c9cb | 877 | ah->curchan = ath9k_cmn_get_curchannel(sc->hw, ah); |
159cd468 | 878 | |
20bd2a09 | 879 | r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); |
ae8d2858 | 880 | if (r) { |
3800276a JP |
881 | ath_err(common, |
882 | "Unable to reset channel (%u MHz), reset status %d\n", | |
883 | channel->center_freq, r); | |
500c064d | 884 | } |
500c064d | 885 | |
5048e8c3 RM |
886 | ath9k_cmn_update_txpow(ah, sc->curtxpow, |
887 | sc->config.txpowlimit, &sc->curtxpow); | |
500c064d | 888 | if (ath_startrecv(sc) != 0) { |
3800276a | 889 | ath_err(common, "Unable to restart recv logic\n"); |
c2731b81 | 890 | goto out; |
500c064d | 891 | } |
500c064d | 892 | if (sc->sc_flags & SC_OP_BEACONS) |
99e4d43a | 893 | ath_set_beacon(sc); /* restart beacons */ |
500c064d VT |
894 | |
895 | /* Re-Enable interrupts */ | |
3069168c | 896 | ath9k_hw_set_interrupts(ah, ah->imask); |
500c064d VT |
897 | |
898 | /* Enable LED */ | |
08fc5c1b | 899 | ath9k_hw_cfg_output(ah, ah->led_pin, |
500c064d | 900 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
08fc5c1b | 901 | ath9k_hw_set_gpio(ah, ah->led_pin, 0); |
500c064d | 902 | |
68a89116 | 903 | ieee80211_wake_queues(hw); |
7e3514fd VN |
904 | ieee80211_queue_delayed_work(hw, &sc->hw_pll_work, HZ/2); |
905 | ||
c2731b81 | 906 | out: |
6a6733f2 LR |
907 | spin_unlock_bh(&sc->sc_pcu_lock); |
908 | ||
3cbb5dd7 | 909 | ath9k_ps_restore(sc); |
500c064d VT |
910 | } |
911 | ||
68a89116 | 912 | void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw) |
500c064d | 913 | { |
cbe61d8a | 914 | struct ath_hw *ah = sc->sc_ah; |
68a89116 | 915 | struct ieee80211_channel *channel = hw->conf.channel; |
ae8d2858 | 916 | int r; |
500c064d | 917 | |
3cbb5dd7 | 918 | ath9k_ps_wakeup(sc); |
7e3514fd VN |
919 | cancel_delayed_work_sync(&sc->hw_pll_work); |
920 | ||
6a6733f2 LR |
921 | spin_lock_bh(&sc->sc_pcu_lock); |
922 | ||
68a89116 | 923 | ieee80211_stop_queues(hw); |
500c064d | 924 | |
982723df VN |
925 | /* |
926 | * Keep the LED on when the radio is disabled | |
927 | * during idle unassociated state. | |
928 | */ | |
929 | if (!sc->ps_idle) { | |
930 | ath9k_hw_set_gpio(ah, ah->led_pin, 1); | |
931 | ath9k_hw_cfg_gpio_input(ah, ah->led_pin); | |
932 | } | |
500c064d VT |
933 | |
934 | /* Disable interrupts */ | |
4df3071e | 935 | ath9k_hw_disable_interrupts(ah); |
500c064d | 936 | |
043a0405 | 937 | ath_drain_all_txq(sc, false); /* clear pending tx frames */ |
5e848f78 | 938 | |
500c064d VT |
939 | ath_stoprecv(sc); /* turn off frame recv */ |
940 | ath_flushrecv(sc); /* flush recv queue */ | |
941 | ||
159cd468 | 942 | if (!ah->curchan) |
c344c9cb | 943 | ah->curchan = ath9k_cmn_get_curchannel(hw, ah); |
159cd468 | 944 | |
20bd2a09 | 945 | r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); |
ae8d2858 | 946 | if (r) { |
3800276a JP |
947 | ath_err(ath9k_hw_common(sc->sc_ah), |
948 | "Unable to reset channel (%u MHz), reset status %d\n", | |
949 | channel->center_freq, r); | |
500c064d | 950 | } |
500c064d VT |
951 | |
952 | ath9k_hw_phy_disable(ah); | |
5e848f78 | 953 | |
93b1b37f | 954 | ath9k_hw_configpcipowersave(ah, 1, 1); |
6a6733f2 LR |
955 | |
956 | spin_unlock_bh(&sc->sc_pcu_lock); | |
3cbb5dd7 | 957 | ath9k_ps_restore(sc); |
500c064d VT |
958 | } |
959 | ||
ff37e337 S |
960 | int ath_reset(struct ath_softc *sc, bool retry_tx) |
961 | { | |
cbe61d8a | 962 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 963 | struct ath_common *common = ath9k_hw_common(ah); |
030bb495 | 964 | struct ieee80211_hw *hw = sc->hw; |
ae8d2858 | 965 | int r; |
ff37e337 | 966 | |
cb8d61de FF |
967 | sc->hw_busy_count = 0; |
968 | ||
2ab81d4a S |
969 | /* Stop ANI */ |
970 | del_timer_sync(&common->ani.timer); | |
971 | ||
783cd01e | 972 | ath9k_ps_wakeup(sc); |
6a6733f2 LR |
973 | spin_lock_bh(&sc->sc_pcu_lock); |
974 | ||
cc9c378a S |
975 | ieee80211_stop_queues(hw); |
976 | ||
4df3071e | 977 | ath9k_hw_disable_interrupts(ah); |
043a0405 | 978 | ath_drain_all_txq(sc, retry_tx); |
5e848f78 | 979 | |
ff37e337 S |
980 | ath_stoprecv(sc); |
981 | ath_flushrecv(sc); | |
982 | ||
20bd2a09 | 983 | r = ath9k_hw_reset(ah, sc->sc_ah->curchan, ah->caldata, false); |
ae8d2858 | 984 | if (r) |
3800276a JP |
985 | ath_err(common, |
986 | "Unable to reset hardware; reset status %d\n", r); | |
ff37e337 S |
987 | |
988 | if (ath_startrecv(sc) != 0) | |
3800276a | 989 | ath_err(common, "Unable to start recv logic\n"); |
ff37e337 S |
990 | |
991 | /* | |
992 | * We may be doing a reset in response to a request | |
993 | * that changes the channel so update any state that | |
994 | * might change as a result. | |
995 | */ | |
5048e8c3 RM |
996 | ath9k_cmn_update_txpow(ah, sc->curtxpow, |
997 | sc->config.txpowlimit, &sc->curtxpow); | |
ff37e337 | 998 | |
52b8ac92 | 999 | if ((sc->sc_flags & SC_OP_BEACONS) || !(sc->sc_flags & (SC_OP_OFFCHANNEL))) |
99e4d43a | 1000 | ath_set_beacon(sc); /* restart beacons */ |
ff37e337 | 1001 | |
3069168c | 1002 | ath9k_hw_set_interrupts(ah, ah->imask); |
ff37e337 S |
1003 | |
1004 | if (retry_tx) { | |
1005 | int i; | |
1006 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { | |
1007 | if (ATH_TXQ_SETUP(sc, i)) { | |
b77f483f S |
1008 | spin_lock_bh(&sc->tx.txq[i].axq_lock); |
1009 | ath_txq_schedule(sc, &sc->tx.txq[i]); | |
1010 | spin_unlock_bh(&sc->tx.txq[i].axq_lock); | |
ff37e337 S |
1011 | } |
1012 | } | |
1013 | } | |
1014 | ||
cc9c378a | 1015 | ieee80211_wake_queues(hw); |
6a6733f2 | 1016 | spin_unlock_bh(&sc->sc_pcu_lock); |
cc9c378a | 1017 | |
2ab81d4a S |
1018 | /* Start ANI */ |
1019 | ath_start_ani(common); | |
783cd01e | 1020 | ath9k_ps_restore(sc); |
2ab81d4a | 1021 | |
ae8d2858 | 1022 | return r; |
ff37e337 S |
1023 | } |
1024 | ||
ff37e337 S |
1025 | /**********************/ |
1026 | /* mac80211 callbacks */ | |
1027 | /**********************/ | |
1028 | ||
8feceb67 | 1029 | static int ath9k_start(struct ieee80211_hw *hw) |
f078f209 | 1030 | { |
9ac58615 | 1031 | struct ath_softc *sc = hw->priv; |
af03abec | 1032 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 1033 | struct ath_common *common = ath9k_hw_common(ah); |
8feceb67 | 1034 | struct ieee80211_channel *curchan = hw->conf.channel; |
ff37e337 | 1035 | struct ath9k_channel *init_channel; |
82880a7c | 1036 | int r; |
f078f209 | 1037 | |
226afe68 JP |
1038 | ath_dbg(common, ATH_DBG_CONFIG, |
1039 | "Starting driver with initial channel: %d MHz\n", | |
1040 | curchan->center_freq); | |
f078f209 | 1041 | |
f62d816f FF |
1042 | ath9k_ps_wakeup(sc); |
1043 | ||
141b38b6 S |
1044 | mutex_lock(&sc->mutex); |
1045 | ||
8feceb67 | 1046 | /* setup initial channel */ |
82880a7c | 1047 | sc->chan_idx = curchan->hw_value; |
f078f209 | 1048 | |
c344c9cb | 1049 | init_channel = ath9k_cmn_get_curchannel(hw, ah); |
ff37e337 S |
1050 | |
1051 | /* Reset SERDES registers */ | |
af03abec | 1052 | ath9k_hw_configpcipowersave(ah, 0, 0); |
ff37e337 S |
1053 | |
1054 | /* | |
1055 | * The basic interface to setting the hardware in a good | |
1056 | * state is ``reset''. On return the hardware is known to | |
1057 | * be powered up and with interrupts disabled. This must | |
1058 | * be followed by initialization of the appropriate bits | |
1059 | * and then setup of the interrupt mask. | |
1060 | */ | |
4bdd1e97 | 1061 | spin_lock_bh(&sc->sc_pcu_lock); |
20bd2a09 | 1062 | r = ath9k_hw_reset(ah, init_channel, ah->caldata, false); |
ae8d2858 | 1063 | if (r) { |
3800276a JP |
1064 | ath_err(common, |
1065 | "Unable to reset hardware; reset status %d (freq %u MHz)\n", | |
1066 | r, curchan->center_freq); | |
4bdd1e97 | 1067 | spin_unlock_bh(&sc->sc_pcu_lock); |
141b38b6 | 1068 | goto mutex_unlock; |
ff37e337 | 1069 | } |
ff37e337 S |
1070 | |
1071 | /* | |
1072 | * This is needed only to setup initial state | |
1073 | * but it's best done after a reset. | |
1074 | */ | |
5048e8c3 RM |
1075 | ath9k_cmn_update_txpow(ah, sc->curtxpow, |
1076 | sc->config.txpowlimit, &sc->curtxpow); | |
8feceb67 | 1077 | |
ff37e337 S |
1078 | /* |
1079 | * Setup the hardware after reset: | |
1080 | * The receive engine is set going. | |
1081 | * Frame transmit is handled entirely | |
1082 | * in the frame output path; there's nothing to do | |
1083 | * here except setup the interrupt mask. | |
1084 | */ | |
1085 | if (ath_startrecv(sc) != 0) { | |
3800276a | 1086 | ath_err(common, "Unable to start recv logic\n"); |
141b38b6 | 1087 | r = -EIO; |
4bdd1e97 | 1088 | spin_unlock_bh(&sc->sc_pcu_lock); |
141b38b6 | 1089 | goto mutex_unlock; |
f078f209 | 1090 | } |
4bdd1e97 | 1091 | spin_unlock_bh(&sc->sc_pcu_lock); |
8feceb67 | 1092 | |
ff37e337 | 1093 | /* Setup our intr mask. */ |
b5c80475 FF |
1094 | ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL | |
1095 | ATH9K_INT_RXORN | ATH9K_INT_FATAL | | |
1096 | ATH9K_INT_GLOBAL; | |
1097 | ||
1098 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) | |
08578b8f LR |
1099 | ah->imask |= ATH9K_INT_RXHP | |
1100 | ATH9K_INT_RXLP | | |
1101 | ATH9K_INT_BB_WATCHDOG; | |
b5c80475 FF |
1102 | else |
1103 | ah->imask |= ATH9K_INT_RX; | |
ff37e337 | 1104 | |
364734fa | 1105 | ah->imask |= ATH9K_INT_GTT; |
ff37e337 | 1106 | |
af03abec | 1107 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) |
3069168c | 1108 | ah->imask |= ATH9K_INT_CST; |
ff37e337 | 1109 | |
ff37e337 | 1110 | sc->sc_flags &= ~SC_OP_INVALID; |
5f841b41 | 1111 | sc->sc_ah->is_monitoring = false; |
ff37e337 S |
1112 | |
1113 | /* Disable BMISS interrupt when we're not associated */ | |
3069168c PR |
1114 | ah->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); |
1115 | ath9k_hw_set_interrupts(ah, ah->imask); | |
ff37e337 | 1116 | |
bce048d7 | 1117 | ieee80211_wake_queues(hw); |
ff37e337 | 1118 | |
42935eca | 1119 | ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); |
164ace38 | 1120 | |
766ec4a9 LR |
1121 | if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) && |
1122 | !ah->btcoex_hw.enabled) { | |
5e197292 LR |
1123 | ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, |
1124 | AR_STOMP_LOW_WLAN_WGHT); | |
af03abec | 1125 | ath9k_hw_btcoex_enable(ah); |
f985ad12 | 1126 | |
5bb12791 LR |
1127 | if (common->bus_ops->bt_coex_prep) |
1128 | common->bus_ops->bt_coex_prep(common); | |
766ec4a9 | 1129 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
75d7839f | 1130 | ath9k_btcoex_timer_resume(sc); |
1773912b VT |
1131 | } |
1132 | ||
8060e169 VT |
1133 | if (ah->caps.pcie_lcr_extsync_en && common->bus_ops->extn_synch_en) |
1134 | common->bus_ops->extn_synch_en(common); | |
1135 | ||
141b38b6 S |
1136 | mutex_unlock: |
1137 | mutex_unlock(&sc->mutex); | |
1138 | ||
f62d816f FF |
1139 | ath9k_ps_restore(sc); |
1140 | ||
ae8d2858 | 1141 | return r; |
f078f209 LR |
1142 | } |
1143 | ||
7bb45683 | 1144 | static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
f078f209 | 1145 | { |
9ac58615 | 1146 | struct ath_softc *sc = hw->priv; |
c46917bb | 1147 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
528f0c6b | 1148 | struct ath_tx_control txctl; |
1bc14880 | 1149 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
528f0c6b | 1150 | |
96148326 | 1151 | if (sc->ps_enabled) { |
dc8c4585 JM |
1152 | /* |
1153 | * mac80211 does not set PM field for normal data frames, so we | |
1154 | * need to update that based on the current PS mode. | |
1155 | */ | |
1156 | if (ieee80211_is_data(hdr->frame_control) && | |
1157 | !ieee80211_is_nullfunc(hdr->frame_control) && | |
1158 | !ieee80211_has_pm(hdr->frame_control)) { | |
226afe68 JP |
1159 | ath_dbg(common, ATH_DBG_PS, |
1160 | "Add PM=1 for a TX frame while in PS mode\n"); | |
dc8c4585 JM |
1161 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); |
1162 | } | |
1163 | } | |
1164 | ||
9a23f9ca JM |
1165 | if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) { |
1166 | /* | |
1167 | * We are using PS-Poll and mac80211 can request TX while in | |
1168 | * power save mode. Need to wake up hardware for the TX to be | |
1169 | * completed and if needed, also for RX of buffered frames. | |
1170 | */ | |
9a23f9ca | 1171 | ath9k_ps_wakeup(sc); |
fdf76622 VT |
1172 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
1173 | ath9k_hw_setrxabort(sc->sc_ah, 0); | |
9a23f9ca | 1174 | if (ieee80211_is_pspoll(hdr->frame_control)) { |
226afe68 JP |
1175 | ath_dbg(common, ATH_DBG_PS, |
1176 | "Sending PS-Poll to pick a buffered frame\n"); | |
1b04b930 | 1177 | sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA; |
9a23f9ca | 1178 | } else { |
226afe68 JP |
1179 | ath_dbg(common, ATH_DBG_PS, |
1180 | "Wake up to complete TX\n"); | |
1b04b930 | 1181 | sc->ps_flags |= PS_WAIT_FOR_TX_ACK; |
9a23f9ca JM |
1182 | } |
1183 | /* | |
1184 | * The actual restore operation will happen only after | |
1185 | * the sc_flags bit is cleared. We are just dropping | |
1186 | * the ps_usecount here. | |
1187 | */ | |
1188 | ath9k_ps_restore(sc); | |
1189 | } | |
1190 | ||
528f0c6b | 1191 | memset(&txctl, 0, sizeof(struct ath_tx_control)); |
066dae93 | 1192 | txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)]; |
528f0c6b | 1193 | |
226afe68 | 1194 | ath_dbg(common, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); |
8feceb67 | 1195 | |
c52f33d0 | 1196 | if (ath_tx_start(hw, skb, &txctl) != 0) { |
226afe68 | 1197 | ath_dbg(common, ATH_DBG_XMIT, "TX failed\n"); |
528f0c6b | 1198 | goto exit; |
8feceb67 VT |
1199 | } |
1200 | ||
7bb45683 | 1201 | return; |
528f0c6b S |
1202 | exit: |
1203 | dev_kfree_skb_any(skb); | |
f078f209 LR |
1204 | } |
1205 | ||
8feceb67 | 1206 | static void ath9k_stop(struct ieee80211_hw *hw) |
f078f209 | 1207 | { |
9ac58615 | 1208 | struct ath_softc *sc = hw->priv; |
af03abec | 1209 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 1210 | struct ath_common *common = ath9k_hw_common(ah); |
f078f209 | 1211 | |
4c483817 S |
1212 | mutex_lock(&sc->mutex); |
1213 | ||
c94dbff7 | 1214 | cancel_delayed_work_sync(&sc->tx_complete_work); |
181fb18d | 1215 | cancel_delayed_work_sync(&sc->hw_pll_work); |
9f42c2b6 | 1216 | cancel_work_sync(&sc->paprd_work); |
347809fc | 1217 | cancel_work_sync(&sc->hw_check_work); |
c94dbff7 | 1218 | |
9c84b797 | 1219 | if (sc->sc_flags & SC_OP_INVALID) { |
226afe68 | 1220 | ath_dbg(common, ATH_DBG_ANY, "Device not present\n"); |
4c483817 | 1221 | mutex_unlock(&sc->mutex); |
9c84b797 S |
1222 | return; |
1223 | } | |
8feceb67 | 1224 | |
3867cf6a S |
1225 | /* Ensure HW is awake when we try to shut it down. */ |
1226 | ath9k_ps_wakeup(sc); | |
1227 | ||
766ec4a9 | 1228 | if (ah->btcoex_hw.enabled) { |
af03abec | 1229 | ath9k_hw_btcoex_disable(ah); |
766ec4a9 | 1230 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
75d7839f | 1231 | ath9k_btcoex_timer_pause(sc); |
1773912b VT |
1232 | } |
1233 | ||
6a6733f2 LR |
1234 | spin_lock_bh(&sc->sc_pcu_lock); |
1235 | ||
203043f5 SG |
1236 | /* prevent tasklets to enable interrupts once we disable them */ |
1237 | ah->imask &= ~ATH9K_INT_GLOBAL; | |
1238 | ||
ff37e337 S |
1239 | /* make sure h/w will not generate any interrupt |
1240 | * before setting the invalid flag. */ | |
4df3071e | 1241 | ath9k_hw_disable_interrupts(ah); |
ff37e337 S |
1242 | |
1243 | if (!(sc->sc_flags & SC_OP_INVALID)) { | |
043a0405 | 1244 | ath_drain_all_txq(sc, false); |
ff37e337 | 1245 | ath_stoprecv(sc); |
af03abec | 1246 | ath9k_hw_phy_disable(ah); |
6a6733f2 | 1247 | } else |
b77f483f | 1248 | sc->rx.rxlink = NULL; |
ff37e337 | 1249 | |
0d95521e FF |
1250 | if (sc->rx.frag) { |
1251 | dev_kfree_skb_any(sc->rx.frag); | |
1252 | sc->rx.frag = NULL; | |
1253 | } | |
1254 | ||
ff37e337 | 1255 | /* disable HAL and put h/w to sleep */ |
af03abec LR |
1256 | ath9k_hw_disable(ah); |
1257 | ath9k_hw_configpcipowersave(ah, 1, 1); | |
6a6733f2 LR |
1258 | |
1259 | spin_unlock_bh(&sc->sc_pcu_lock); | |
1260 | ||
203043f5 SG |
1261 | /* we can now sync irq and kill any running tasklets, since we already |
1262 | * disabled interrupts and not holding a spin lock */ | |
1263 | synchronize_irq(sc->irq); | |
1264 | tasklet_kill(&sc->intr_tq); | |
1265 | tasklet_kill(&sc->bcon_tasklet); | |
1266 | ||
3867cf6a S |
1267 | ath9k_ps_restore(sc); |
1268 | ||
a08e7ade LR |
1269 | sc->ps_idle = true; |
1270 | ath_radio_disable(sc, hw); | |
ff37e337 S |
1271 | |
1272 | sc->sc_flags |= SC_OP_INVALID; | |
500c064d | 1273 | |
141b38b6 S |
1274 | mutex_unlock(&sc->mutex); |
1275 | ||
226afe68 | 1276 | ath_dbg(common, ATH_DBG_CONFIG, "Driver halt\n"); |
f078f209 LR |
1277 | } |
1278 | ||
4801416c BG |
1279 | bool ath9k_uses_beacons(int type) |
1280 | { | |
1281 | switch (type) { | |
1282 | case NL80211_IFTYPE_AP: | |
1283 | case NL80211_IFTYPE_ADHOC: | |
1284 | case NL80211_IFTYPE_MESH_POINT: | |
1285 | return true; | |
1286 | default: | |
1287 | return false; | |
1288 | } | |
1289 | } | |
1290 | ||
1291 | static void ath9k_reclaim_beacon(struct ath_softc *sc, | |
1292 | struct ieee80211_vif *vif) | |
f078f209 | 1293 | { |
1ed32e4f | 1294 | struct ath_vif *avp = (void *)vif->drv_priv; |
8feceb67 | 1295 | |
014cf3bb | 1296 | ath9k_set_beaconing_status(sc, false); |
4801416c | 1297 | ath_beacon_return(sc, avp); |
014cf3bb | 1298 | ath9k_set_beaconing_status(sc, true); |
4801416c | 1299 | sc->sc_flags &= ~SC_OP_BEACONS; |
4801416c BG |
1300 | } |
1301 | ||
1302 | static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif) | |
1303 | { | |
1304 | struct ath9k_vif_iter_data *iter_data = data; | |
1305 | int i; | |
1306 | ||
1307 | if (iter_data->hw_macaddr) | |
1308 | for (i = 0; i < ETH_ALEN; i++) | |
1309 | iter_data->mask[i] &= | |
1310 | ~(iter_data->hw_macaddr[i] ^ mac[i]); | |
141b38b6 | 1311 | |
1ed32e4f | 1312 | switch (vif->type) { |
4801416c BG |
1313 | case NL80211_IFTYPE_AP: |
1314 | iter_data->naps++; | |
f078f209 | 1315 | break; |
4801416c BG |
1316 | case NL80211_IFTYPE_STATION: |
1317 | iter_data->nstations++; | |
e51f3eff | 1318 | break; |
05c914fe | 1319 | case NL80211_IFTYPE_ADHOC: |
4801416c BG |
1320 | iter_data->nadhocs++; |
1321 | break; | |
9cb5412b | 1322 | case NL80211_IFTYPE_MESH_POINT: |
4801416c BG |
1323 | iter_data->nmeshes++; |
1324 | break; | |
1325 | case NL80211_IFTYPE_WDS: | |
1326 | iter_data->nwds++; | |
f078f209 LR |
1327 | break; |
1328 | default: | |
4801416c BG |
1329 | iter_data->nothers++; |
1330 | break; | |
f078f209 | 1331 | } |
4801416c | 1332 | } |
f078f209 | 1333 | |
4801416c BG |
1334 | /* Called with sc->mutex held. */ |
1335 | void ath9k_calculate_iter_data(struct ieee80211_hw *hw, | |
1336 | struct ieee80211_vif *vif, | |
1337 | struct ath9k_vif_iter_data *iter_data) | |
1338 | { | |
9ac58615 | 1339 | struct ath_softc *sc = hw->priv; |
4801416c BG |
1340 | struct ath_hw *ah = sc->sc_ah; |
1341 | struct ath_common *common = ath9k_hw_common(ah); | |
8feceb67 | 1342 | |
4801416c BG |
1343 | /* |
1344 | * Use the hardware MAC address as reference, the hardware uses it | |
1345 | * together with the BSSID mask when matching addresses. | |
1346 | */ | |
1347 | memset(iter_data, 0, sizeof(*iter_data)); | |
1348 | iter_data->hw_macaddr = common->macaddr; | |
1349 | memset(&iter_data->mask, 0xff, ETH_ALEN); | |
5640b08e | 1350 | |
4801416c BG |
1351 | if (vif) |
1352 | ath9k_vif_iter(iter_data, vif->addr, vif); | |
1353 | ||
1354 | /* Get list of all active MAC addresses */ | |
4801416c BG |
1355 | ieee80211_iterate_active_interfaces_atomic(sc->hw, ath9k_vif_iter, |
1356 | iter_data); | |
4801416c | 1357 | } |
8ca21f01 | 1358 | |
4801416c BG |
1359 | /* Called with sc->mutex held. */ |
1360 | static void ath9k_calculate_summary_state(struct ieee80211_hw *hw, | |
1361 | struct ieee80211_vif *vif) | |
1362 | { | |
9ac58615 | 1363 | struct ath_softc *sc = hw->priv; |
4801416c BG |
1364 | struct ath_hw *ah = sc->sc_ah; |
1365 | struct ath_common *common = ath9k_hw_common(ah); | |
1366 | struct ath9k_vif_iter_data iter_data; | |
8ca21f01 | 1367 | |
4801416c | 1368 | ath9k_calculate_iter_data(hw, vif, &iter_data); |
2c3db3d5 | 1369 | |
4801416c BG |
1370 | /* Set BSSID mask. */ |
1371 | memcpy(common->bssidmask, iter_data.mask, ETH_ALEN); | |
1372 | ath_hw_setbssidmask(common); | |
1373 | ||
1374 | /* Set op-mode & TSF */ | |
1375 | if (iter_data.naps > 0) { | |
3069168c | 1376 | ath9k_hw_set_tsfadjust(ah, 1); |
b238e90e | 1377 | sc->sc_flags |= SC_OP_TSF_RESET; |
4801416c BG |
1378 | ah->opmode = NL80211_IFTYPE_AP; |
1379 | } else { | |
1380 | ath9k_hw_set_tsfadjust(ah, 0); | |
1381 | sc->sc_flags &= ~SC_OP_TSF_RESET; | |
5640b08e | 1382 | |
fd5999cf JC |
1383 | if (iter_data.nmeshes) |
1384 | ah->opmode = NL80211_IFTYPE_MESH_POINT; | |
1385 | else if (iter_data.nwds) | |
4801416c BG |
1386 | ah->opmode = NL80211_IFTYPE_AP; |
1387 | else if (iter_data.nadhocs) | |
1388 | ah->opmode = NL80211_IFTYPE_ADHOC; | |
1389 | else | |
1390 | ah->opmode = NL80211_IFTYPE_STATION; | |
1391 | } | |
5640b08e | 1392 | |
4e30ffa2 VN |
1393 | /* |
1394 | * Enable MIB interrupts when there are hardware phy counters. | |
4e30ffa2 | 1395 | */ |
4801416c | 1396 | if ((iter_data.nstations + iter_data.nadhocs + iter_data.nmeshes) > 0) { |
3448f912 LR |
1397 | if (ah->config.enable_ani) |
1398 | ah->imask |= ATH9K_INT_MIB; | |
3069168c | 1399 | ah->imask |= ATH9K_INT_TSFOOR; |
4801416c BG |
1400 | } else { |
1401 | ah->imask &= ~ATH9K_INT_MIB; | |
1402 | ah->imask &= ~ATH9K_INT_TSFOOR; | |
4af9cf4f S |
1403 | } |
1404 | ||
3069168c | 1405 | ath9k_hw_set_interrupts(ah, ah->imask); |
4e30ffa2 | 1406 | |
4801416c BG |
1407 | /* Set up ANI */ |
1408 | if ((iter_data.naps + iter_data.nadhocs) > 0) { | |
729da390 | 1409 | sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; |
6c3118e2 | 1410 | sc->sc_flags |= SC_OP_ANI_RUN; |
3d536acf | 1411 | ath_start_ani(common); |
f60c49b6 RM |
1412 | } else { |
1413 | sc->sc_flags &= ~SC_OP_ANI_RUN; | |
1414 | del_timer_sync(&common->ani.timer); | |
6c3118e2 | 1415 | } |
4801416c | 1416 | } |
6f255425 | 1417 | |
4801416c BG |
1418 | /* Called with sc->mutex held, vif counts set up properly. */ |
1419 | static void ath9k_do_vif_add_setup(struct ieee80211_hw *hw, | |
1420 | struct ieee80211_vif *vif) | |
1421 | { | |
9ac58615 | 1422 | struct ath_softc *sc = hw->priv; |
4801416c BG |
1423 | |
1424 | ath9k_calculate_summary_state(hw, vif); | |
1425 | ||
1426 | if (ath9k_uses_beacons(vif->type)) { | |
1427 | int error; | |
4801416c BG |
1428 | /* This may fail because upper levels do not have beacons |
1429 | * properly configured yet. That's OK, we assume it | |
1430 | * will be properly configured and then we will be notified | |
1431 | * in the info_changed method and set up beacons properly | |
1432 | * there. | |
1433 | */ | |
014cf3bb | 1434 | ath9k_set_beaconing_status(sc, false); |
9ac58615 | 1435 | error = ath_beacon_alloc(sc, vif); |
391bd1c4 | 1436 | if (!error) |
4801416c | 1437 | ath_beacon_config(sc, vif); |
014cf3bb | 1438 | ath9k_set_beaconing_status(sc, true); |
4801416c | 1439 | } |
f078f209 LR |
1440 | } |
1441 | ||
4801416c BG |
1442 | |
1443 | static int ath9k_add_interface(struct ieee80211_hw *hw, | |
1444 | struct ieee80211_vif *vif) | |
6b3b991d | 1445 | { |
9ac58615 | 1446 | struct ath_softc *sc = hw->priv; |
4801416c BG |
1447 | struct ath_hw *ah = sc->sc_ah; |
1448 | struct ath_common *common = ath9k_hw_common(ah); | |
4801416c | 1449 | int ret = 0; |
6b3b991d | 1450 | |
96f372c9 | 1451 | ath9k_ps_wakeup(sc); |
4801416c | 1452 | mutex_lock(&sc->mutex); |
6b3b991d | 1453 | |
4801416c BG |
1454 | switch (vif->type) { |
1455 | case NL80211_IFTYPE_STATION: | |
1456 | case NL80211_IFTYPE_WDS: | |
1457 | case NL80211_IFTYPE_ADHOC: | |
1458 | case NL80211_IFTYPE_AP: | |
1459 | case NL80211_IFTYPE_MESH_POINT: | |
1460 | break; | |
1461 | default: | |
1462 | ath_err(common, "Interface type %d not yet supported\n", | |
1463 | vif->type); | |
1464 | ret = -EOPNOTSUPP; | |
1465 | goto out; | |
1466 | } | |
6b3b991d | 1467 | |
4801416c BG |
1468 | if (ath9k_uses_beacons(vif->type)) { |
1469 | if (sc->nbcnvifs >= ATH_BCBUF) { | |
1470 | ath_err(common, "Not enough beacon buffers when adding" | |
1471 | " new interface of type: %i\n", | |
1472 | vif->type); | |
1473 | ret = -ENOBUFS; | |
1474 | goto out; | |
1475 | } | |
1476 | } | |
1477 | ||
59575d1c RM |
1478 | if ((ah->opmode == NL80211_IFTYPE_ADHOC) || |
1479 | ((vif->type == NL80211_IFTYPE_ADHOC) && | |
1480 | sc->nvifs > 0)) { | |
4801416c BG |
1481 | ath_err(common, "Cannot create ADHOC interface when other" |
1482 | " interfaces already exist.\n"); | |
1483 | ret = -EINVAL; | |
1484 | goto out; | |
6b3b991d | 1485 | } |
4801416c BG |
1486 | |
1487 | ath_dbg(common, ATH_DBG_CONFIG, | |
1488 | "Attach a VIF of type: %d\n", vif->type); | |
1489 | ||
4801416c BG |
1490 | sc->nvifs++; |
1491 | ||
1492 | ath9k_do_vif_add_setup(hw, vif); | |
1493 | out: | |
1494 | mutex_unlock(&sc->mutex); | |
96f372c9 | 1495 | ath9k_ps_restore(sc); |
4801416c | 1496 | return ret; |
6b3b991d RM |
1497 | } |
1498 | ||
1499 | static int ath9k_change_interface(struct ieee80211_hw *hw, | |
1500 | struct ieee80211_vif *vif, | |
1501 | enum nl80211_iftype new_type, | |
1502 | bool p2p) | |
1503 | { | |
9ac58615 | 1504 | struct ath_softc *sc = hw->priv; |
6b3b991d | 1505 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
6dab55bf | 1506 | int ret = 0; |
6b3b991d RM |
1507 | |
1508 | ath_dbg(common, ATH_DBG_CONFIG, "Change Interface\n"); | |
1509 | mutex_lock(&sc->mutex); | |
96f372c9 | 1510 | ath9k_ps_wakeup(sc); |
6b3b991d | 1511 | |
4801416c BG |
1512 | /* See if new interface type is valid. */ |
1513 | if ((new_type == NL80211_IFTYPE_ADHOC) && | |
1514 | (sc->nvifs > 1)) { | |
1515 | ath_err(common, "When using ADHOC, it must be the only" | |
1516 | " interface.\n"); | |
1517 | ret = -EINVAL; | |
1518 | goto out; | |
1519 | } | |
1520 | ||
1521 | if (ath9k_uses_beacons(new_type) && | |
1522 | !ath9k_uses_beacons(vif->type)) { | |
6b3b991d RM |
1523 | if (sc->nbcnvifs >= ATH_BCBUF) { |
1524 | ath_err(common, "No beacon slot available\n"); | |
6dab55bf DC |
1525 | ret = -ENOBUFS; |
1526 | goto out; | |
6b3b991d | 1527 | } |
6b3b991d | 1528 | } |
4801416c BG |
1529 | |
1530 | /* Clean up old vif stuff */ | |
1531 | if (ath9k_uses_beacons(vif->type)) | |
1532 | ath9k_reclaim_beacon(sc, vif); | |
1533 | ||
1534 | /* Add new settings */ | |
6b3b991d RM |
1535 | vif->type = new_type; |
1536 | vif->p2p = p2p; | |
1537 | ||
4801416c | 1538 | ath9k_do_vif_add_setup(hw, vif); |
6dab55bf | 1539 | out: |
96f372c9 | 1540 | ath9k_ps_restore(sc); |
6b3b991d | 1541 | mutex_unlock(&sc->mutex); |
6dab55bf | 1542 | return ret; |
6b3b991d RM |
1543 | } |
1544 | ||
8feceb67 | 1545 | static void ath9k_remove_interface(struct ieee80211_hw *hw, |
1ed32e4f | 1546 | struct ieee80211_vif *vif) |
f078f209 | 1547 | { |
9ac58615 | 1548 | struct ath_softc *sc = hw->priv; |
c46917bb | 1549 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
f078f209 | 1550 | |
226afe68 | 1551 | ath_dbg(common, ATH_DBG_CONFIG, "Detach Interface\n"); |
f078f209 | 1552 | |
96f372c9 | 1553 | ath9k_ps_wakeup(sc); |
141b38b6 S |
1554 | mutex_lock(&sc->mutex); |
1555 | ||
4801416c | 1556 | sc->nvifs--; |
580f0b8a | 1557 | |
8feceb67 | 1558 | /* Reclaim beacon resources */ |
4801416c | 1559 | if (ath9k_uses_beacons(vif->type)) |
6b3b991d | 1560 | ath9k_reclaim_beacon(sc, vif); |
2c3db3d5 | 1561 | |
4801416c | 1562 | ath9k_calculate_summary_state(hw, NULL); |
141b38b6 S |
1563 | |
1564 | mutex_unlock(&sc->mutex); | |
96f372c9 | 1565 | ath9k_ps_restore(sc); |
f078f209 LR |
1566 | } |
1567 | ||
fbab7390 | 1568 | static void ath9k_enable_ps(struct ath_softc *sc) |
3f7c5c10 | 1569 | { |
3069168c PR |
1570 | struct ath_hw *ah = sc->sc_ah; |
1571 | ||
3f7c5c10 | 1572 | sc->ps_enabled = true; |
3069168c PR |
1573 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { |
1574 | if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) { | |
1575 | ah->imask |= ATH9K_INT_TIM_TIMER; | |
1576 | ath9k_hw_set_interrupts(ah, ah->imask); | |
3f7c5c10 | 1577 | } |
fdf76622 | 1578 | ath9k_hw_setrxabort(ah, 1); |
3f7c5c10 | 1579 | } |
3f7c5c10 SB |
1580 | } |
1581 | ||
845d708e SB |
1582 | static void ath9k_disable_ps(struct ath_softc *sc) |
1583 | { | |
1584 | struct ath_hw *ah = sc->sc_ah; | |
1585 | ||
1586 | sc->ps_enabled = false; | |
1587 | ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); | |
1588 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { | |
1589 | ath9k_hw_setrxabort(ah, 0); | |
1590 | sc->ps_flags &= ~(PS_WAIT_FOR_BEACON | | |
1591 | PS_WAIT_FOR_CAB | | |
1592 | PS_WAIT_FOR_PSPOLL_DATA | | |
1593 | PS_WAIT_FOR_TX_ACK); | |
1594 | if (ah->imask & ATH9K_INT_TIM_TIMER) { | |
1595 | ah->imask &= ~ATH9K_INT_TIM_TIMER; | |
1596 | ath9k_hw_set_interrupts(ah, ah->imask); | |
1597 | } | |
1598 | } | |
1599 | ||
1600 | } | |
1601 | ||
e8975581 | 1602 | static int ath9k_config(struct ieee80211_hw *hw, u32 changed) |
f078f209 | 1603 | { |
9ac58615 | 1604 | struct ath_softc *sc = hw->priv; |
3430098a FF |
1605 | struct ath_hw *ah = sc->sc_ah; |
1606 | struct ath_common *common = ath9k_hw_common(ah); | |
e8975581 | 1607 | struct ieee80211_conf *conf = &hw->conf; |
7545daf4 | 1608 | bool disable_radio = false; |
f078f209 | 1609 | |
aa33de09 | 1610 | mutex_lock(&sc->mutex); |
141b38b6 | 1611 | |
194b7c13 LR |
1612 | /* |
1613 | * Leave this as the first check because we need to turn on the | |
1614 | * radio if it was disabled before prior to processing the rest | |
1615 | * of the changes. Likewise we must only disable the radio towards | |
1616 | * the end. | |
1617 | */ | |
64839170 | 1618 | if (changed & IEEE80211_CONF_CHANGE_IDLE) { |
7545daf4 FF |
1619 | sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE); |
1620 | if (!sc->ps_idle) { | |
68a89116 | 1621 | ath_radio_enable(sc, hw); |
226afe68 JP |
1622 | ath_dbg(common, ATH_DBG_CONFIG, |
1623 | "not-idle: enabling radio\n"); | |
7545daf4 FF |
1624 | } else { |
1625 | disable_radio = true; | |
64839170 LR |
1626 | } |
1627 | } | |
1628 | ||
e7824a50 LR |
1629 | /* |
1630 | * We just prepare to enable PS. We have to wait until our AP has | |
1631 | * ACK'd our null data frame to disable RX otherwise we'll ignore | |
1632 | * those ACKs and end up retransmitting the same null data frames. | |
1633 | * IEEE80211_CONF_CHANGE_PS is only passed by mac80211 for STA mode. | |
1634 | */ | |
3cbb5dd7 | 1635 | if (changed & IEEE80211_CONF_CHANGE_PS) { |
8ab2cd09 LR |
1636 | unsigned long flags; |
1637 | spin_lock_irqsave(&sc->sc_pm_lock, flags); | |
fbab7390 SB |
1638 | if (conf->flags & IEEE80211_CONF_PS) |
1639 | ath9k_enable_ps(sc); | |
845d708e SB |
1640 | else |
1641 | ath9k_disable_ps(sc); | |
8ab2cd09 | 1642 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); |
3cbb5dd7 VN |
1643 | } |
1644 | ||
199afd9d S |
1645 | if (changed & IEEE80211_CONF_CHANGE_MONITOR) { |
1646 | if (conf->flags & IEEE80211_CONF_MONITOR) { | |
226afe68 JP |
1647 | ath_dbg(common, ATH_DBG_CONFIG, |
1648 | "Monitor mode is enabled\n"); | |
5f841b41 RM |
1649 | sc->sc_ah->is_monitoring = true; |
1650 | } else { | |
226afe68 JP |
1651 | ath_dbg(common, ATH_DBG_CONFIG, |
1652 | "Monitor mode is disabled\n"); | |
5f841b41 | 1653 | sc->sc_ah->is_monitoring = false; |
199afd9d S |
1654 | } |
1655 | } | |
1656 | ||
4797938c | 1657 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
99405f93 | 1658 | struct ieee80211_channel *curchan = hw->conf.channel; |
5f8e077c | 1659 | int pos = curchan->hw_value; |
3430098a FF |
1660 | int old_pos = -1; |
1661 | unsigned long flags; | |
1662 | ||
1663 | if (ah->curchan) | |
1664 | old_pos = ah->curchan - &ah->channels[0]; | |
ae5eb026 | 1665 | |
5ee08656 FF |
1666 | if (hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) |
1667 | sc->sc_flags |= SC_OP_OFFCHANNEL; | |
1668 | else | |
1669 | sc->sc_flags &= ~SC_OP_OFFCHANNEL; | |
0e2dedf9 | 1670 | |
8c79a610 BG |
1671 | ath_dbg(common, ATH_DBG_CONFIG, |
1672 | "Set channel: %d MHz type: %d\n", | |
1673 | curchan->center_freq, conf->channel_type); | |
f078f209 | 1674 | |
de87f736 RM |
1675 | ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos], |
1676 | curchan, conf->channel_type); | |
e11602b7 | 1677 | |
3430098a FF |
1678 | /* update survey stats for the old channel before switching */ |
1679 | spin_lock_irqsave(&common->cc_lock, flags); | |
1680 | ath_update_survey_stats(sc); | |
1681 | spin_unlock_irqrestore(&common->cc_lock, flags); | |
1682 | ||
1683 | /* | |
1684 | * If the operating channel changes, change the survey in-use flags | |
1685 | * along with it. | |
1686 | * Reset the survey data for the new channel, unless we're switching | |
1687 | * back to the operating channel from an off-channel operation. | |
1688 | */ | |
1689 | if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) && | |
1690 | sc->cur_survey != &sc->survey[pos]) { | |
1691 | ||
1692 | if (sc->cur_survey) | |
1693 | sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE; | |
1694 | ||
1695 | sc->cur_survey = &sc->survey[pos]; | |
1696 | ||
1697 | memset(sc->cur_survey, 0, sizeof(struct survey_info)); | |
1698 | sc->cur_survey->filled |= SURVEY_INFO_IN_USE; | |
1699 | } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) { | |
1700 | memset(&sc->survey[pos], 0, sizeof(struct survey_info)); | |
1701 | } | |
1702 | ||
0e2dedf9 | 1703 | if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { |
3800276a | 1704 | ath_err(common, "Unable to set channel\n"); |
aa33de09 | 1705 | mutex_unlock(&sc->mutex); |
e11602b7 S |
1706 | return -EINVAL; |
1707 | } | |
3430098a FF |
1708 | |
1709 | /* | |
1710 | * The most recent snapshot of channel->noisefloor for the old | |
1711 | * channel is only available after the hardware reset. Copy it to | |
1712 | * the survey stats now. | |
1713 | */ | |
1714 | if (old_pos >= 0) | |
1715 | ath_update_survey_nf(sc, old_pos); | |
094d05dc | 1716 | } |
f078f209 | 1717 | |
c9f6a656 | 1718 | if (changed & IEEE80211_CONF_CHANGE_POWER) { |
603b3eef BG |
1719 | ath_dbg(common, ATH_DBG_CONFIG, |
1720 | "Set power: %d\n", conf->power_level); | |
17d7904d | 1721 | sc->config.txpowlimit = 2 * conf->power_level; |
783cd01e | 1722 | ath9k_ps_wakeup(sc); |
5048e8c3 RM |
1723 | ath9k_cmn_update_txpow(ah, sc->curtxpow, |
1724 | sc->config.txpowlimit, &sc->curtxpow); | |
783cd01e | 1725 | ath9k_ps_restore(sc); |
c9f6a656 | 1726 | } |
f078f209 | 1727 | |
64839170 | 1728 | if (disable_radio) { |
226afe68 | 1729 | ath_dbg(common, ATH_DBG_CONFIG, "idle: disabling radio\n"); |
68a89116 | 1730 | ath_radio_disable(sc, hw); |
64839170 LR |
1731 | } |
1732 | ||
aa33de09 | 1733 | mutex_unlock(&sc->mutex); |
141b38b6 | 1734 | |
f078f209 LR |
1735 | return 0; |
1736 | } | |
1737 | ||
8feceb67 VT |
1738 | #define SUPPORTED_FILTERS \ |
1739 | (FIF_PROMISC_IN_BSS | \ | |
1740 | FIF_ALLMULTI | \ | |
1741 | FIF_CONTROL | \ | |
af6a3fc7 | 1742 | FIF_PSPOLL | \ |
8feceb67 VT |
1743 | FIF_OTHER_BSS | \ |
1744 | FIF_BCN_PRBRESP_PROMISC | \ | |
9c1d8e4a | 1745 | FIF_PROBE_REQ | \ |
8feceb67 | 1746 | FIF_FCSFAIL) |
c83be688 | 1747 | |
8feceb67 VT |
1748 | /* FIXME: sc->sc_full_reset ? */ |
1749 | static void ath9k_configure_filter(struct ieee80211_hw *hw, | |
1750 | unsigned int changed_flags, | |
1751 | unsigned int *total_flags, | |
3ac64bee | 1752 | u64 multicast) |
8feceb67 | 1753 | { |
9ac58615 | 1754 | struct ath_softc *sc = hw->priv; |
8feceb67 | 1755 | u32 rfilt; |
f078f209 | 1756 | |
8feceb67 VT |
1757 | changed_flags &= SUPPORTED_FILTERS; |
1758 | *total_flags &= SUPPORTED_FILTERS; | |
f078f209 | 1759 | |
b77f483f | 1760 | sc->rx.rxfilter = *total_flags; |
aa68aeaa | 1761 | ath9k_ps_wakeup(sc); |
8feceb67 VT |
1762 | rfilt = ath_calcrxfilter(sc); |
1763 | ath9k_hw_setrxfilter(sc->sc_ah, rfilt); | |
aa68aeaa | 1764 | ath9k_ps_restore(sc); |
f078f209 | 1765 | |
226afe68 JP |
1766 | ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG, |
1767 | "Set HW RX filter: 0x%x\n", rfilt); | |
8feceb67 | 1768 | } |
f078f209 | 1769 | |
4ca77860 JB |
1770 | static int ath9k_sta_add(struct ieee80211_hw *hw, |
1771 | struct ieee80211_vif *vif, | |
1772 | struct ieee80211_sta *sta) | |
8feceb67 | 1773 | { |
9ac58615 | 1774 | struct ath_softc *sc = hw->priv; |
93ae2dd2 FF |
1775 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
1776 | struct ath_node *an = (struct ath_node *) sta->drv_priv; | |
1777 | struct ieee80211_key_conf ps_key = { }; | |
f078f209 | 1778 | |
4ca77860 | 1779 | ath_node_attach(sc, sta); |
f59a59fe FF |
1780 | |
1781 | if (vif->type != NL80211_IFTYPE_AP && | |
1782 | vif->type != NL80211_IFTYPE_AP_VLAN) | |
1783 | return 0; | |
1784 | ||
93ae2dd2 | 1785 | an->ps_key = ath_key_config(common, vif, sta, &ps_key); |
4ca77860 JB |
1786 | |
1787 | return 0; | |
1788 | } | |
1789 | ||
93ae2dd2 FF |
1790 | static void ath9k_del_ps_key(struct ath_softc *sc, |
1791 | struct ieee80211_vif *vif, | |
1792 | struct ieee80211_sta *sta) | |
1793 | { | |
1794 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); | |
1795 | struct ath_node *an = (struct ath_node *) sta->drv_priv; | |
1796 | struct ieee80211_key_conf ps_key = { .hw_key_idx = an->ps_key }; | |
1797 | ||
1798 | if (!an->ps_key) | |
1799 | return; | |
1800 | ||
1801 | ath_key_delete(common, &ps_key); | |
1802 | } | |
1803 | ||
4ca77860 JB |
1804 | static int ath9k_sta_remove(struct ieee80211_hw *hw, |
1805 | struct ieee80211_vif *vif, | |
1806 | struct ieee80211_sta *sta) | |
1807 | { | |
9ac58615 | 1808 | struct ath_softc *sc = hw->priv; |
4ca77860 | 1809 | |
93ae2dd2 | 1810 | ath9k_del_ps_key(sc, vif, sta); |
4ca77860 JB |
1811 | ath_node_detach(sc, sta); |
1812 | ||
1813 | return 0; | |
f078f209 LR |
1814 | } |
1815 | ||
5519541d FF |
1816 | static void ath9k_sta_notify(struct ieee80211_hw *hw, |
1817 | struct ieee80211_vif *vif, | |
1818 | enum sta_notify_cmd cmd, | |
1819 | struct ieee80211_sta *sta) | |
1820 | { | |
1821 | struct ath_softc *sc = hw->priv; | |
1822 | struct ath_node *an = (struct ath_node *) sta->drv_priv; | |
1823 | ||
1824 | switch (cmd) { | |
1825 | case STA_NOTIFY_SLEEP: | |
1826 | an->sleeping = true; | |
1827 | if (ath_tx_aggr_sleep(sc, an)) | |
1828 | ieee80211_sta_set_tim(sta); | |
1829 | break; | |
1830 | case STA_NOTIFY_AWAKE: | |
1831 | an->sleeping = false; | |
1832 | ath_tx_aggr_wakeup(sc, an); | |
1833 | break; | |
1834 | } | |
1835 | } | |
1836 | ||
141b38b6 | 1837 | static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
8feceb67 | 1838 | const struct ieee80211_tx_queue_params *params) |
f078f209 | 1839 | { |
9ac58615 | 1840 | struct ath_softc *sc = hw->priv; |
c46917bb | 1841 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
066dae93 | 1842 | struct ath_txq *txq; |
8feceb67 | 1843 | struct ath9k_tx_queue_info qi; |
066dae93 | 1844 | int ret = 0; |
f078f209 | 1845 | |
8feceb67 VT |
1846 | if (queue >= WME_NUM_AC) |
1847 | return 0; | |
f078f209 | 1848 | |
066dae93 FF |
1849 | txq = sc->tx.txq_map[queue]; |
1850 | ||
96f372c9 | 1851 | ath9k_ps_wakeup(sc); |
141b38b6 S |
1852 | mutex_lock(&sc->mutex); |
1853 | ||
1ffb0610 S |
1854 | memset(&qi, 0, sizeof(struct ath9k_tx_queue_info)); |
1855 | ||
8feceb67 VT |
1856 | qi.tqi_aifs = params->aifs; |
1857 | qi.tqi_cwmin = params->cw_min; | |
1858 | qi.tqi_cwmax = params->cw_max; | |
1859 | qi.tqi_burstTime = params->txop; | |
f078f209 | 1860 | |
226afe68 JP |
1861 | ath_dbg(common, ATH_DBG_CONFIG, |
1862 | "Configure tx [queue/halq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", | |
1863 | queue, txq->axq_qnum, params->aifs, params->cw_min, | |
1864 | params->cw_max, params->txop); | |
f078f209 | 1865 | |
066dae93 | 1866 | ret = ath_txq_update(sc, txq->axq_qnum, &qi); |
8feceb67 | 1867 | if (ret) |
3800276a | 1868 | ath_err(common, "TXQ Update failed\n"); |
f078f209 | 1869 | |
94db2936 | 1870 | if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) |
066dae93 | 1871 | if (queue == WME_AC_BE && !ret) |
94db2936 VN |
1872 | ath_beaconq_config(sc); |
1873 | ||
141b38b6 | 1874 | mutex_unlock(&sc->mutex); |
96f372c9 | 1875 | ath9k_ps_restore(sc); |
141b38b6 | 1876 | |
8feceb67 VT |
1877 | return ret; |
1878 | } | |
f078f209 | 1879 | |
8feceb67 VT |
1880 | static int ath9k_set_key(struct ieee80211_hw *hw, |
1881 | enum set_key_cmd cmd, | |
dc822b5d JB |
1882 | struct ieee80211_vif *vif, |
1883 | struct ieee80211_sta *sta, | |
8feceb67 VT |
1884 | struct ieee80211_key_conf *key) |
1885 | { | |
9ac58615 | 1886 | struct ath_softc *sc = hw->priv; |
c46917bb | 1887 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
8feceb67 | 1888 | int ret = 0; |
f078f209 | 1889 | |
3e6109c5 | 1890 | if (ath9k_modparam_nohwcrypt) |
b3bd89ce JM |
1891 | return -ENOSPC; |
1892 | ||
cfdc9a8b JM |
1893 | if (vif->type == NL80211_IFTYPE_ADHOC && |
1894 | (key->cipher == WLAN_CIPHER_SUITE_TKIP || | |
1895 | key->cipher == WLAN_CIPHER_SUITE_CCMP) && | |
1896 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { | |
1897 | /* | |
1898 | * For now, disable hw crypto for the RSN IBSS group keys. This | |
1899 | * could be optimized in the future to use a modified key cache | |
1900 | * design to support per-STA RX GTK, but until that gets | |
1901 | * implemented, use of software crypto for group addressed | |
1902 | * frames is a acceptable to allow RSN IBSS to be used. | |
1903 | */ | |
1904 | return -EOPNOTSUPP; | |
1905 | } | |
1906 | ||
141b38b6 | 1907 | mutex_lock(&sc->mutex); |
3cbb5dd7 | 1908 | ath9k_ps_wakeup(sc); |
226afe68 | 1909 | ath_dbg(common, ATH_DBG_CONFIG, "Set HW Key\n"); |
f078f209 | 1910 | |
8feceb67 VT |
1911 | switch (cmd) { |
1912 | case SET_KEY: | |
93ae2dd2 FF |
1913 | if (sta) |
1914 | ath9k_del_ps_key(sc, vif, sta); | |
1915 | ||
040e539e | 1916 | ret = ath_key_config(common, vif, sta, key); |
6ace2891 JM |
1917 | if (ret >= 0) { |
1918 | key->hw_key_idx = ret; | |
8feceb67 VT |
1919 | /* push IV and Michael MIC generation to stack */ |
1920 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
97359d12 | 1921 | if (key->cipher == WLAN_CIPHER_SUITE_TKIP) |
8feceb67 | 1922 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
97359d12 JB |
1923 | if (sc->sc_ah->sw_mgmt_crypto && |
1924 | key->cipher == WLAN_CIPHER_SUITE_CCMP) | |
0ced0e17 | 1925 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; |
6ace2891 | 1926 | ret = 0; |
8feceb67 VT |
1927 | } |
1928 | break; | |
1929 | case DISABLE_KEY: | |
040e539e | 1930 | ath_key_delete(common, key); |
8feceb67 VT |
1931 | break; |
1932 | default: | |
1933 | ret = -EINVAL; | |
1934 | } | |
f078f209 | 1935 | |
3cbb5dd7 | 1936 | ath9k_ps_restore(sc); |
141b38b6 S |
1937 | mutex_unlock(&sc->mutex); |
1938 | ||
8feceb67 VT |
1939 | return ret; |
1940 | } | |
4f5ef75b RM |
1941 | static void ath9k_bss_iter(void *data, u8 *mac, struct ieee80211_vif *vif) |
1942 | { | |
1943 | struct ath_softc *sc = data; | |
1944 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); | |
1945 | struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; | |
1946 | struct ath_vif *avp = (void *)vif->drv_priv; | |
1947 | ||
1948 | switch (sc->sc_ah->opmode) { | |
1949 | case NL80211_IFTYPE_ADHOC: | |
1950 | /* There can be only one vif available */ | |
1951 | memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); | |
1952 | common->curaid = bss_conf->aid; | |
1953 | ath9k_hw_write_associd(sc->sc_ah); | |
99e4d43a RM |
1954 | /* configure beacon */ |
1955 | if (bss_conf->enable_beacon) | |
1956 | ath_beacon_config(sc, vif); | |
4f5ef75b RM |
1957 | break; |
1958 | case NL80211_IFTYPE_STATION: | |
1959 | /* | |
1960 | * Skip iteration if primary station vif's bss info | |
1961 | * was not changed | |
1962 | */ | |
1963 | if (sc->sc_flags & SC_OP_PRIM_STA_VIF) | |
1964 | break; | |
1965 | ||
1966 | if (bss_conf->assoc) { | |
1967 | sc->sc_flags |= SC_OP_PRIM_STA_VIF; | |
1968 | avp->primary_sta_vif = true; | |
1969 | memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); | |
1970 | common->curaid = bss_conf->aid; | |
1971 | ath9k_hw_write_associd(sc->sc_ah); | |
99e4d43a RM |
1972 | ath_dbg(common, ATH_DBG_CONFIG, |
1973 | "Bss Info ASSOC %d, bssid: %pM\n", | |
1974 | bss_conf->aid, common->curbssid); | |
1975 | ath_beacon_config(sc, vif); | |
92c6f76c RM |
1976 | /* |
1977 | * Request a re-configuration of Beacon related timers | |
1978 | * on the receipt of the first Beacon frame (i.e., | |
1979 | * after time sync with the AP). | |
1980 | */ | |
1981 | sc->ps_flags |= PS_BEACON_SYNC | PS_WAIT_FOR_BEACON; | |
99e4d43a RM |
1982 | /* Reset rssi stats */ |
1983 | sc->last_rssi = ATH_RSSI_DUMMY_MARKER; | |
1984 | sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; | |
1985 | ||
1986 | sc->sc_flags |= SC_OP_ANI_RUN; | |
1987 | ath_start_ani(common); | |
4f5ef75b RM |
1988 | } |
1989 | break; | |
1990 | default: | |
1991 | break; | |
1992 | } | |
1993 | } | |
1994 | ||
1995 | static void ath9k_config_bss(struct ath_softc *sc, struct ieee80211_vif *vif) | |
1996 | { | |
1997 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); | |
1998 | struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; | |
1999 | struct ath_vif *avp = (void *)vif->drv_priv; | |
2000 | ||
2001 | /* Reconfigure bss info */ | |
2002 | if (avp->primary_sta_vif && !bss_conf->assoc) { | |
99e4d43a RM |
2003 | ath_dbg(common, ATH_DBG_CONFIG, |
2004 | "Bss Info DISASSOC %d, bssid %pM\n", | |
2005 | common->curaid, common->curbssid); | |
2006 | sc->sc_flags &= ~(SC_OP_PRIM_STA_VIF | SC_OP_BEACONS); | |
4f5ef75b RM |
2007 | avp->primary_sta_vif = false; |
2008 | memset(common->curbssid, 0, ETH_ALEN); | |
2009 | common->curaid = 0; | |
2010 | } | |
2011 | ||
2012 | ieee80211_iterate_active_interfaces_atomic( | |
2013 | sc->hw, ath9k_bss_iter, sc); | |
2014 | ||
2015 | /* | |
2016 | * None of station vifs are associated. | |
2017 | * Clear bssid & aid | |
2018 | */ | |
2019 | if ((sc->sc_ah->opmode == NL80211_IFTYPE_STATION) && | |
99e4d43a | 2020 | !(sc->sc_flags & SC_OP_PRIM_STA_VIF)) { |
4f5ef75b | 2021 | ath9k_hw_write_associd(sc->sc_ah); |
99e4d43a RM |
2022 | /* Stop ANI */ |
2023 | sc->sc_flags &= ~SC_OP_ANI_RUN; | |
2024 | del_timer_sync(&common->ani.timer); | |
2025 | } | |
4f5ef75b | 2026 | } |
f078f209 | 2027 | |
8feceb67 VT |
2028 | static void ath9k_bss_info_changed(struct ieee80211_hw *hw, |
2029 | struct ieee80211_vif *vif, | |
2030 | struct ieee80211_bss_conf *bss_conf, | |
2031 | u32 changed) | |
2032 | { | |
9ac58615 | 2033 | struct ath_softc *sc = hw->priv; |
2d0ddec5 | 2034 | struct ath_hw *ah = sc->sc_ah; |
1510718d | 2035 | struct ath_common *common = ath9k_hw_common(ah); |
2d0ddec5 | 2036 | struct ath_vif *avp = (void *)vif->drv_priv; |
0005baf4 | 2037 | int slottime; |
c6089ccc | 2038 | int error; |
f078f209 | 2039 | |
96f372c9 | 2040 | ath9k_ps_wakeup(sc); |
141b38b6 S |
2041 | mutex_lock(&sc->mutex); |
2042 | ||
c6089ccc | 2043 | if (changed & BSS_CHANGED_BSSID) { |
4f5ef75b | 2044 | ath9k_config_bss(sc, vif); |
2d0ddec5 | 2045 | |
226afe68 JP |
2046 | ath_dbg(common, ATH_DBG_CONFIG, "BSSID: %pM aid: 0x%x\n", |
2047 | common->curbssid, common->curaid); | |
c6089ccc | 2048 | } |
2d0ddec5 | 2049 | |
c6089ccc S |
2050 | /* Enable transmission of beacons (AP, IBSS, MESH) */ |
2051 | if ((changed & BSS_CHANGED_BEACON) || | |
2052 | ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon)) { | |
014cf3bb | 2053 | ath9k_set_beaconing_status(sc, false); |
9ac58615 | 2054 | error = ath_beacon_alloc(sc, vif); |
c6089ccc S |
2055 | if (!error) |
2056 | ath_beacon_config(sc, vif); | |
014cf3bb | 2057 | ath9k_set_beaconing_status(sc, true); |
0005baf4 FF |
2058 | } |
2059 | ||
2060 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
2061 | if (bss_conf->use_short_slot) | |
2062 | slottime = 9; | |
2063 | else | |
2064 | slottime = 20; | |
2065 | if (vif->type == NL80211_IFTYPE_AP) { | |
2066 | /* | |
2067 | * Defer update, so that connected stations can adjust | |
2068 | * their settings at the same time. | |
2069 | * See beacon.c for more details | |
2070 | */ | |
2071 | sc->beacon.slottime = slottime; | |
2072 | sc->beacon.updateslot = UPDATE; | |
2073 | } else { | |
2074 | ah->slottime = slottime; | |
2075 | ath9k_hw_init_global_settings(ah); | |
2076 | } | |
2d0ddec5 JB |
2077 | } |
2078 | ||
c6089ccc | 2079 | /* Disable transmission of beacons */ |
014cf3bb RM |
2080 | if ((changed & BSS_CHANGED_BEACON_ENABLED) && |
2081 | !bss_conf->enable_beacon) { | |
2082 | ath9k_set_beaconing_status(sc, false); | |
2083 | avp->is_bslot_active = false; | |
2084 | ath9k_set_beaconing_status(sc, true); | |
2085 | } | |
2d0ddec5 | 2086 | |
c6089ccc | 2087 | if (changed & BSS_CHANGED_BEACON_INT) { |
c6089ccc S |
2088 | /* |
2089 | * In case of AP mode, the HW TSF has to be reset | |
2090 | * when the beacon interval changes. | |
2091 | */ | |
2092 | if (vif->type == NL80211_IFTYPE_AP) { | |
2093 | sc->sc_flags |= SC_OP_TSF_RESET; | |
014cf3bb | 2094 | ath9k_set_beaconing_status(sc, false); |
9ac58615 | 2095 | error = ath_beacon_alloc(sc, vif); |
2d0ddec5 JB |
2096 | if (!error) |
2097 | ath_beacon_config(sc, vif); | |
014cf3bb | 2098 | ath9k_set_beaconing_status(sc, true); |
99e4d43a | 2099 | } else |
c6089ccc | 2100 | ath_beacon_config(sc, vif); |
2d0ddec5 JB |
2101 | } |
2102 | ||
8feceb67 | 2103 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
226afe68 JP |
2104 | ath_dbg(common, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", |
2105 | bss_conf->use_short_preamble); | |
8feceb67 VT |
2106 | if (bss_conf->use_short_preamble) |
2107 | sc->sc_flags |= SC_OP_PREAMBLE_SHORT; | |
2108 | else | |
2109 | sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; | |
2110 | } | |
f078f209 | 2111 | |
8feceb67 | 2112 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
226afe68 JP |
2113 | ath_dbg(common, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", |
2114 | bss_conf->use_cts_prot); | |
8feceb67 VT |
2115 | if (bss_conf->use_cts_prot && |
2116 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) | |
2117 | sc->sc_flags |= SC_OP_PROTECT_ENABLE; | |
2118 | else | |
2119 | sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; | |
2120 | } | |
f078f209 | 2121 | |
141b38b6 | 2122 | mutex_unlock(&sc->mutex); |
96f372c9 | 2123 | ath9k_ps_restore(sc); |
8feceb67 | 2124 | } |
f078f209 | 2125 | |
8feceb67 VT |
2126 | static u64 ath9k_get_tsf(struct ieee80211_hw *hw) |
2127 | { | |
9ac58615 | 2128 | struct ath_softc *sc = hw->priv; |
8feceb67 | 2129 | u64 tsf; |
f078f209 | 2130 | |
141b38b6 | 2131 | mutex_lock(&sc->mutex); |
9abbfb27 | 2132 | ath9k_ps_wakeup(sc); |
141b38b6 | 2133 | tsf = ath9k_hw_gettsf64(sc->sc_ah); |
9abbfb27 | 2134 | ath9k_ps_restore(sc); |
141b38b6 | 2135 | mutex_unlock(&sc->mutex); |
f078f209 | 2136 | |
8feceb67 VT |
2137 | return tsf; |
2138 | } | |
f078f209 | 2139 | |
3b5d665b AF |
2140 | static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
2141 | { | |
9ac58615 | 2142 | struct ath_softc *sc = hw->priv; |
3b5d665b | 2143 | |
141b38b6 | 2144 | mutex_lock(&sc->mutex); |
9abbfb27 | 2145 | ath9k_ps_wakeup(sc); |
141b38b6 | 2146 | ath9k_hw_settsf64(sc->sc_ah, tsf); |
9abbfb27 | 2147 | ath9k_ps_restore(sc); |
141b38b6 | 2148 | mutex_unlock(&sc->mutex); |
3b5d665b AF |
2149 | } |
2150 | ||
8feceb67 VT |
2151 | static void ath9k_reset_tsf(struct ieee80211_hw *hw) |
2152 | { | |
9ac58615 | 2153 | struct ath_softc *sc = hw->priv; |
c83be688 | 2154 | |
141b38b6 | 2155 | mutex_lock(&sc->mutex); |
21526d57 LR |
2156 | |
2157 | ath9k_ps_wakeup(sc); | |
141b38b6 | 2158 | ath9k_hw_reset_tsf(sc->sc_ah); |
21526d57 LR |
2159 | ath9k_ps_restore(sc); |
2160 | ||
141b38b6 | 2161 | mutex_unlock(&sc->mutex); |
8feceb67 | 2162 | } |
f078f209 | 2163 | |
8feceb67 | 2164 | static int ath9k_ampdu_action(struct ieee80211_hw *hw, |
c951ad35 | 2165 | struct ieee80211_vif *vif, |
141b38b6 S |
2166 | enum ieee80211_ampdu_mlme_action action, |
2167 | struct ieee80211_sta *sta, | |
0b01f030 | 2168 | u16 tid, u16 *ssn, u8 buf_size) |
8feceb67 | 2169 | { |
9ac58615 | 2170 | struct ath_softc *sc = hw->priv; |
8feceb67 | 2171 | int ret = 0; |
f078f209 | 2172 | |
85ad181e JB |
2173 | local_bh_disable(); |
2174 | ||
8feceb67 VT |
2175 | switch (action) { |
2176 | case IEEE80211_AMPDU_RX_START: | |
dca3edb8 S |
2177 | if (!(sc->sc_flags & SC_OP_RXAGGR)) |
2178 | ret = -ENOTSUPP; | |
8feceb67 VT |
2179 | break; |
2180 | case IEEE80211_AMPDU_RX_STOP: | |
8feceb67 VT |
2181 | break; |
2182 | case IEEE80211_AMPDU_TX_START: | |
71a3bf3e FF |
2183 | if (!(sc->sc_flags & SC_OP_TXAGGR)) |
2184 | return -EOPNOTSUPP; | |
2185 | ||
8b685ba9 | 2186 | ath9k_ps_wakeup(sc); |
231c3a1f FF |
2187 | ret = ath_tx_aggr_start(sc, sta, tid, ssn); |
2188 | if (!ret) | |
2189 | ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); | |
8b685ba9 | 2190 | ath9k_ps_restore(sc); |
8feceb67 VT |
2191 | break; |
2192 | case IEEE80211_AMPDU_TX_STOP: | |
8b685ba9 | 2193 | ath9k_ps_wakeup(sc); |
f83da965 | 2194 | ath_tx_aggr_stop(sc, sta, tid); |
c951ad35 | 2195 | ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
8b685ba9 | 2196 | ath9k_ps_restore(sc); |
8feceb67 | 2197 | break; |
b1720231 | 2198 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
8b685ba9 | 2199 | ath9k_ps_wakeup(sc); |
8469cdef | 2200 | ath_tx_aggr_resume(sc, sta, tid); |
8b685ba9 | 2201 | ath9k_ps_restore(sc); |
8469cdef | 2202 | break; |
8feceb67 | 2203 | default: |
3800276a | 2204 | ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n"); |
8feceb67 VT |
2205 | } |
2206 | ||
85ad181e JB |
2207 | local_bh_enable(); |
2208 | ||
8feceb67 | 2209 | return ret; |
f078f209 LR |
2210 | } |
2211 | ||
62dad5b0 BP |
2212 | static int ath9k_get_survey(struct ieee80211_hw *hw, int idx, |
2213 | struct survey_info *survey) | |
2214 | { | |
9ac58615 | 2215 | struct ath_softc *sc = hw->priv; |
3430098a | 2216 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
39162dbe | 2217 | struct ieee80211_supported_band *sband; |
3430098a FF |
2218 | struct ieee80211_channel *chan; |
2219 | unsigned long flags; | |
2220 | int pos; | |
2221 | ||
2222 | spin_lock_irqsave(&common->cc_lock, flags); | |
2223 | if (idx == 0) | |
2224 | ath_update_survey_stats(sc); | |
39162dbe FF |
2225 | |
2226 | sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ]; | |
2227 | if (sband && idx >= sband->n_channels) { | |
2228 | idx -= sband->n_channels; | |
2229 | sband = NULL; | |
2230 | } | |
62dad5b0 | 2231 | |
39162dbe FF |
2232 | if (!sband) |
2233 | sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ]; | |
62dad5b0 | 2234 | |
3430098a FF |
2235 | if (!sband || idx >= sband->n_channels) { |
2236 | spin_unlock_irqrestore(&common->cc_lock, flags); | |
2237 | return -ENOENT; | |
4f1a5a4b | 2238 | } |
62dad5b0 | 2239 | |
3430098a FF |
2240 | chan = &sband->channels[idx]; |
2241 | pos = chan->hw_value; | |
2242 | memcpy(survey, &sc->survey[pos], sizeof(*survey)); | |
2243 | survey->channel = chan; | |
2244 | spin_unlock_irqrestore(&common->cc_lock, flags); | |
2245 | ||
62dad5b0 BP |
2246 | return 0; |
2247 | } | |
2248 | ||
e239d859 FF |
2249 | static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class) |
2250 | { | |
9ac58615 | 2251 | struct ath_softc *sc = hw->priv; |
e239d859 FF |
2252 | struct ath_hw *ah = sc->sc_ah; |
2253 | ||
2254 | mutex_lock(&sc->mutex); | |
2255 | ah->coverage_class = coverage_class; | |
2256 | ath9k_hw_init_global_settings(ah); | |
2257 | mutex_unlock(&sc->mutex); | |
2258 | } | |
2259 | ||
69081624 VT |
2260 | static void ath9k_flush(struct ieee80211_hw *hw, bool drop) |
2261 | { | |
69081624 | 2262 | struct ath_softc *sc = hw->priv; |
99aa55b6 MSS |
2263 | struct ath_hw *ah = sc->sc_ah; |
2264 | struct ath_common *common = ath9k_hw_common(ah); | |
86271e46 FF |
2265 | int timeout = 200; /* ms */ |
2266 | int i, j; | |
2f6fc351 | 2267 | bool drain_txq; |
69081624 VT |
2268 | |
2269 | mutex_lock(&sc->mutex); | |
69081624 VT |
2270 | cancel_delayed_work_sync(&sc->tx_complete_work); |
2271 | ||
99aa55b6 MSS |
2272 | if (sc->sc_flags & SC_OP_INVALID) { |
2273 | ath_dbg(common, ATH_DBG_ANY, "Device not present\n"); | |
2274 | mutex_unlock(&sc->mutex); | |
2275 | return; | |
2276 | } | |
2277 | ||
86271e46 FF |
2278 | if (drop) |
2279 | timeout = 1; | |
69081624 | 2280 | |
86271e46 | 2281 | for (j = 0; j < timeout; j++) { |
108697c4 | 2282 | bool npend = false; |
86271e46 FF |
2283 | |
2284 | if (j) | |
2285 | usleep_range(1000, 2000); | |
69081624 | 2286 | |
86271e46 FF |
2287 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { |
2288 | if (!ATH_TXQ_SETUP(sc, i)) | |
2289 | continue; | |
2290 | ||
108697c4 MSS |
2291 | npend = ath9k_has_pending_frames(sc, &sc->tx.txq[i]); |
2292 | ||
2293 | if (npend) | |
2294 | break; | |
69081624 | 2295 | } |
86271e46 FF |
2296 | |
2297 | if (!npend) | |
2298 | goto out; | |
69081624 VT |
2299 | } |
2300 | ||
51513906 | 2301 | ath9k_ps_wakeup(sc); |
2f6fc351 RM |
2302 | spin_lock_bh(&sc->sc_pcu_lock); |
2303 | drain_txq = ath_drain_all_txq(sc, false); | |
2304 | spin_unlock_bh(&sc->sc_pcu_lock); | |
2305 | if (!drain_txq) | |
69081624 | 2306 | ath_reset(sc, false); |
51513906 | 2307 | ath9k_ps_restore(sc); |
d78f4b3e SB |
2308 | ieee80211_wake_queues(hw); |
2309 | ||
86271e46 | 2310 | out: |
69081624 VT |
2311 | ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0); |
2312 | mutex_unlock(&sc->mutex); | |
2313 | } | |
2314 | ||
15b91e83 VN |
2315 | static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw) |
2316 | { | |
2317 | struct ath_softc *sc = hw->priv; | |
2318 | int i; | |
2319 | ||
2320 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { | |
2321 | if (!ATH_TXQ_SETUP(sc, i)) | |
2322 | continue; | |
2323 | ||
2324 | if (ath9k_has_pending_frames(sc, &sc->tx.txq[i])) | |
2325 | return true; | |
2326 | } | |
2327 | return false; | |
2328 | } | |
2329 | ||
ba4903f9 FF |
2330 | int ath9k_tx_last_beacon(struct ieee80211_hw *hw) |
2331 | { | |
2332 | struct ath_softc *sc = hw->priv; | |
2333 | struct ath_hw *ah = sc->sc_ah; | |
2334 | struct ieee80211_vif *vif; | |
2335 | struct ath_vif *avp; | |
2336 | struct ath_buf *bf; | |
2337 | struct ath_tx_status ts; | |
2338 | int status; | |
2339 | ||
2340 | vif = sc->beacon.bslot[0]; | |
2341 | if (!vif) | |
2342 | return 0; | |
2343 | ||
2344 | avp = (void *)vif->drv_priv; | |
2345 | if (!avp->is_bslot_active) | |
2346 | return 0; | |
2347 | ||
2348 | if (!sc->beacon.tx_processed) { | |
2349 | tasklet_disable(&sc->bcon_tasklet); | |
2350 | ||
2351 | bf = avp->av_bcbuf; | |
2352 | if (!bf || !bf->bf_mpdu) | |
2353 | goto skip; | |
2354 | ||
2355 | status = ath9k_hw_txprocdesc(ah, bf->bf_desc, &ts); | |
2356 | if (status == -EINPROGRESS) | |
2357 | goto skip; | |
2358 | ||
2359 | sc->beacon.tx_processed = true; | |
2360 | sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_MASK); | |
2361 | ||
2362 | skip: | |
2363 | tasklet_enable(&sc->bcon_tasklet); | |
2364 | } | |
2365 | ||
2366 | return sc->beacon.tx_last; | |
2367 | } | |
2368 | ||
6baff7f9 | 2369 | struct ieee80211_ops ath9k_ops = { |
8feceb67 VT |
2370 | .tx = ath9k_tx, |
2371 | .start = ath9k_start, | |
2372 | .stop = ath9k_stop, | |
2373 | .add_interface = ath9k_add_interface, | |
6b3b991d | 2374 | .change_interface = ath9k_change_interface, |
8feceb67 VT |
2375 | .remove_interface = ath9k_remove_interface, |
2376 | .config = ath9k_config, | |
8feceb67 | 2377 | .configure_filter = ath9k_configure_filter, |
4ca77860 JB |
2378 | .sta_add = ath9k_sta_add, |
2379 | .sta_remove = ath9k_sta_remove, | |
5519541d | 2380 | .sta_notify = ath9k_sta_notify, |
8feceb67 | 2381 | .conf_tx = ath9k_conf_tx, |
8feceb67 | 2382 | .bss_info_changed = ath9k_bss_info_changed, |
8feceb67 | 2383 | .set_key = ath9k_set_key, |
8feceb67 | 2384 | .get_tsf = ath9k_get_tsf, |
3b5d665b | 2385 | .set_tsf = ath9k_set_tsf, |
8feceb67 | 2386 | .reset_tsf = ath9k_reset_tsf, |
4233df6b | 2387 | .ampdu_action = ath9k_ampdu_action, |
62dad5b0 | 2388 | .get_survey = ath9k_get_survey, |
3b319aae | 2389 | .rfkill_poll = ath9k_rfkill_poll_state, |
e239d859 | 2390 | .set_coverage_class = ath9k_set_coverage_class, |
69081624 | 2391 | .flush = ath9k_flush, |
15b91e83 | 2392 | .tx_frames_pending = ath9k_tx_frames_pending, |
ba4903f9 | 2393 | .tx_last_beacon = ath9k_tx_last_beacon, |
8feceb67 | 2394 | }; |