Commit | Line | Data |
---|---|---|
f078f209 | 1 | /* |
cee075a2 | 2 | * Copyright (c) 2008-2009 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> |
394cf0a1 | 18 | #include "ath9k.h" |
af03abec | 19 | #include "btcoex.h" |
f078f209 | 20 | |
ff37e337 S |
21 | static void ath_update_txpow(struct ath_softc *sc) |
22 | { | |
cbe61d8a | 23 | struct ath_hw *ah = sc->sc_ah; |
ff37e337 | 24 | |
17d7904d | 25 | if (sc->curtxpow != sc->config.txpowlimit) { |
de40f316 | 26 | ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit, false); |
ff37e337 | 27 | /* read back in case value is clamped */ |
9cc3271f | 28 | sc->curtxpow = ath9k_hw_regulatory(ah)->power_limit; |
ff37e337 S |
29 | } |
30 | } | |
31 | ||
32 | static u8 parse_mpdudensity(u8 mpdudensity) | |
33 | { | |
34 | /* | |
35 | * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": | |
36 | * 0 for no restriction | |
37 | * 1 for 1/4 us | |
38 | * 2 for 1/2 us | |
39 | * 3 for 1 us | |
40 | * 4 for 2 us | |
41 | * 5 for 4 us | |
42 | * 6 for 8 us | |
43 | * 7 for 16 us | |
44 | */ | |
45 | switch (mpdudensity) { | |
46 | case 0: | |
47 | return 0; | |
48 | case 1: | |
49 | case 2: | |
50 | case 3: | |
51 | /* Our lower layer calculations limit our precision to | |
52 | 1 microsecond */ | |
53 | return 1; | |
54 | case 4: | |
55 | return 2; | |
56 | case 5: | |
57 | return 4; | |
58 | case 6: | |
59 | return 8; | |
60 | case 7: | |
61 | return 16; | |
62 | default: | |
63 | return 0; | |
64 | } | |
65 | } | |
66 | ||
82880a7c VT |
67 | static struct ath9k_channel *ath_get_curchannel(struct ath_softc *sc, |
68 | struct ieee80211_hw *hw) | |
69 | { | |
70 | struct ieee80211_channel *curchan = hw->conf.channel; | |
71 | struct ath9k_channel *channel; | |
72 | u8 chan_idx; | |
73 | ||
74 | chan_idx = curchan->hw_value; | |
75 | channel = &sc->sc_ah->channels[chan_idx]; | |
76 | ath9k_update_ichannel(sc, hw, channel); | |
77 | return channel; | |
78 | } | |
79 | ||
55624204 | 80 | bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode) |
8c77a569 LR |
81 | { |
82 | unsigned long flags; | |
83 | bool ret; | |
84 | ||
9ecdef4b LR |
85 | spin_lock_irqsave(&sc->sc_pm_lock, flags); |
86 | ret = ath9k_hw_setpower(sc->sc_ah, mode); | |
87 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); | |
8c77a569 LR |
88 | |
89 | return ret; | |
90 | } | |
91 | ||
a91d75ae LR |
92 | void ath9k_ps_wakeup(struct ath_softc *sc) |
93 | { | |
898c914a | 94 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
a91d75ae | 95 | unsigned long flags; |
fbb078fc | 96 | enum ath9k_power_mode power_mode; |
a91d75ae LR |
97 | |
98 | spin_lock_irqsave(&sc->sc_pm_lock, flags); | |
99 | if (++sc->ps_usecount != 1) | |
100 | goto unlock; | |
101 | ||
fbb078fc | 102 | power_mode = sc->sc_ah->power_mode; |
9ecdef4b | 103 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); |
a91d75ae | 104 | |
898c914a FF |
105 | /* |
106 | * While the hardware is asleep, the cycle counters contain no | |
107 | * useful data. Better clear them now so that they don't mess up | |
108 | * survey data results. | |
109 | */ | |
fbb078fc FF |
110 | if (power_mode != ATH9K_PM_AWAKE) { |
111 | spin_lock(&common->cc_lock); | |
112 | ath_hw_cycle_counters_update(common); | |
113 | memset(&common->cc_survey, 0, sizeof(common->cc_survey)); | |
114 | spin_unlock(&common->cc_lock); | |
115 | } | |
898c914a | 116 | |
a91d75ae LR |
117 | unlock: |
118 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); | |
119 | } | |
120 | ||
121 | void ath9k_ps_restore(struct ath_softc *sc) | |
122 | { | |
898c914a | 123 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
a91d75ae LR |
124 | unsigned long flags; |
125 | ||
126 | spin_lock_irqsave(&sc->sc_pm_lock, flags); | |
127 | if (--sc->ps_usecount != 0) | |
128 | goto unlock; | |
129 | ||
898c914a FF |
130 | spin_lock(&common->cc_lock); |
131 | ath_hw_cycle_counters_update(common); | |
132 | spin_unlock(&common->cc_lock); | |
133 | ||
1dbfd9d4 VN |
134 | if (sc->ps_idle) |
135 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP); | |
136 | else if (sc->ps_enabled && | |
137 | !(sc->ps_flags & (PS_WAIT_FOR_BEACON | | |
1b04b930 S |
138 | PS_WAIT_FOR_CAB | |
139 | PS_WAIT_FOR_PSPOLL_DATA | | |
140 | PS_WAIT_FOR_TX_ACK))) | |
9ecdef4b | 141 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); |
a91d75ae LR |
142 | |
143 | unlock: | |
144 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); | |
145 | } | |
146 | ||
5ee08656 FF |
147 | static void ath_start_ani(struct ath_common *common) |
148 | { | |
149 | struct ath_hw *ah = common->ah; | |
150 | unsigned long timestamp = jiffies_to_msecs(jiffies); | |
151 | struct ath_softc *sc = (struct ath_softc *) common->priv; | |
152 | ||
153 | if (!(sc->sc_flags & SC_OP_ANI_RUN)) | |
154 | return; | |
155 | ||
156 | if (sc->sc_flags & SC_OP_OFFCHANNEL) | |
157 | return; | |
158 | ||
159 | common->ani.longcal_timer = timestamp; | |
160 | common->ani.shortcal_timer = timestamp; | |
161 | common->ani.checkani_timer = timestamp; | |
162 | ||
163 | mod_timer(&common->ani.timer, | |
164 | jiffies + | |
165 | msecs_to_jiffies((u32)ah->config.ani_poll_interval)); | |
166 | } | |
167 | ||
3430098a FF |
168 | static void ath_update_survey_nf(struct ath_softc *sc, int channel) |
169 | { | |
170 | struct ath_hw *ah = sc->sc_ah; | |
171 | struct ath9k_channel *chan = &ah->channels[channel]; | |
172 | struct survey_info *survey = &sc->survey[channel]; | |
173 | ||
174 | if (chan->noisefloor) { | |
175 | survey->filled |= SURVEY_INFO_NOISE_DBM; | |
176 | survey->noise = chan->noisefloor; | |
177 | } | |
178 | } | |
179 | ||
180 | static void ath_update_survey_stats(struct ath_softc *sc) | |
181 | { | |
182 | struct ath_hw *ah = sc->sc_ah; | |
183 | struct ath_common *common = ath9k_hw_common(ah); | |
184 | int pos = ah->curchan - &ah->channels[0]; | |
185 | struct survey_info *survey = &sc->survey[pos]; | |
186 | struct ath_cycle_counters *cc = &common->cc_survey; | |
187 | unsigned int div = common->clockrate * 1000; | |
188 | ||
0845735e FF |
189 | if (!ah->curchan) |
190 | return; | |
191 | ||
898c914a FF |
192 | if (ah->power_mode == ATH9K_PM_AWAKE) |
193 | ath_hw_cycle_counters_update(common); | |
3430098a FF |
194 | |
195 | if (cc->cycles > 0) { | |
196 | survey->filled |= SURVEY_INFO_CHANNEL_TIME | | |
197 | SURVEY_INFO_CHANNEL_TIME_BUSY | | |
198 | SURVEY_INFO_CHANNEL_TIME_RX | | |
199 | SURVEY_INFO_CHANNEL_TIME_TX; | |
200 | survey->channel_time += cc->cycles / div; | |
201 | survey->channel_time_busy += cc->rx_busy / div; | |
202 | survey->channel_time_rx += cc->rx_frame / div; | |
203 | survey->channel_time_tx += cc->tx_frame / div; | |
204 | } | |
205 | memset(cc, 0, sizeof(*cc)); | |
206 | ||
207 | ath_update_survey_nf(sc, pos); | |
208 | } | |
209 | ||
ff37e337 S |
210 | /* |
211 | * Set/change channels. If the channel is really being changed, it's done | |
212 | * by reseting the chip. To accomplish this we must first cleanup any pending | |
213 | * DMA, then restart stuff. | |
214 | */ | |
0e2dedf9 JM |
215 | int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, |
216 | struct ath9k_channel *hchan) | |
ff37e337 | 217 | { |
20bd2a09 | 218 | struct ath_wiphy *aphy = hw->priv; |
cbe61d8a | 219 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 220 | struct ath_common *common = ath9k_hw_common(ah); |
25c56eec | 221 | struct ieee80211_conf *conf = &common->hw->conf; |
ff37e337 | 222 | bool fastcc = true, stopped; |
ae8d2858 | 223 | struct ieee80211_channel *channel = hw->conf.channel; |
20bd2a09 | 224 | struct ath9k_hw_cal_data *caldata = NULL; |
ae8d2858 | 225 | int r; |
ff37e337 S |
226 | |
227 | if (sc->sc_flags & SC_OP_INVALID) | |
228 | return -EIO; | |
229 | ||
5ee08656 FF |
230 | del_timer_sync(&common->ani.timer); |
231 | cancel_work_sync(&sc->paprd_work); | |
232 | cancel_work_sync(&sc->hw_check_work); | |
233 | cancel_delayed_work_sync(&sc->tx_complete_work); | |
234 | ||
3cbb5dd7 VN |
235 | ath9k_ps_wakeup(sc); |
236 | ||
6a6733f2 LR |
237 | spin_lock_bh(&sc->sc_pcu_lock); |
238 | ||
c0d7c7af LR |
239 | /* |
240 | * This is only performed if the channel settings have | |
241 | * actually changed. | |
242 | * | |
243 | * To switch channels clear any pending DMA operations; | |
244 | * wait long enough for the RX fifo to drain, reset the | |
245 | * hardware at the new frequency, and then re-enable | |
246 | * the relevant bits of the h/w. | |
247 | */ | |
4df3071e | 248 | ath9k_hw_disable_interrupts(ah); |
080e1a25 | 249 | stopped = ath_drain_all_txq(sc, false); |
5e848f78 | 250 | |
080e1a25 FF |
251 | if (!ath_stoprecv(sc)) |
252 | stopped = false; | |
ff37e337 | 253 | |
c0d7c7af LR |
254 | /* XXX: do not flush receive queue here. We don't want |
255 | * to flush data frames already in queue because of | |
256 | * changing channel. */ | |
ff37e337 | 257 | |
5ee08656 | 258 | if (!stopped || !(sc->sc_flags & SC_OP_OFFCHANNEL)) |
c0d7c7af LR |
259 | fastcc = false; |
260 | ||
20bd2a09 FF |
261 | if (!(sc->sc_flags & SC_OP_OFFCHANNEL)) |
262 | caldata = &aphy->caldata; | |
263 | ||
226afe68 JP |
264 | ath_dbg(common, ATH_DBG_CONFIG, |
265 | "(%u MHz) -> (%u MHz), conf_is_ht40: %d fastcc: %d\n", | |
266 | sc->sc_ah->curchan->channel, | |
267 | channel->center_freq, conf_is_ht40(conf), | |
268 | fastcc); | |
ff37e337 | 269 | |
20bd2a09 | 270 | r = ath9k_hw_reset(ah, hchan, caldata, fastcc); |
c0d7c7af | 271 | if (r) { |
3800276a JP |
272 | ath_err(common, |
273 | "Unable to reset channel (%u MHz), reset status %d\n", | |
274 | channel->center_freq, r); | |
3989279c | 275 | goto ps_restore; |
ff37e337 | 276 | } |
c0d7c7af | 277 | |
c0d7c7af | 278 | if (ath_startrecv(sc) != 0) { |
3800276a | 279 | ath_err(common, "Unable to restart recv logic\n"); |
3989279c GJ |
280 | r = -EIO; |
281 | goto ps_restore; | |
c0d7c7af LR |
282 | } |
283 | ||
c0d7c7af | 284 | ath_update_txpow(sc); |
3069168c | 285 | ath9k_hw_set_interrupts(ah, ah->imask); |
3989279c | 286 | |
48a6a468 LR |
287 | if (!(sc->sc_flags & (SC_OP_OFFCHANNEL))) { |
288 | ath_beacon_config(sc, NULL); | |
5ee08656 | 289 | ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); |
48a6a468 | 290 | ath_start_ani(common); |
5ee08656 FF |
291 | } |
292 | ||
3989279c | 293 | ps_restore: |
6a6733f2 LR |
294 | spin_unlock_bh(&sc->sc_pcu_lock); |
295 | ||
3cbb5dd7 | 296 | ath9k_ps_restore(sc); |
3989279c | 297 | return r; |
ff37e337 S |
298 | } |
299 | ||
9f42c2b6 FF |
300 | static void ath_paprd_activate(struct ath_softc *sc) |
301 | { | |
302 | struct ath_hw *ah = sc->sc_ah; | |
20bd2a09 | 303 | struct ath9k_hw_cal_data *caldata = ah->caldata; |
9094537c | 304 | struct ath_common *common = ath9k_hw_common(ah); |
9f42c2b6 FF |
305 | int chain; |
306 | ||
20bd2a09 | 307 | if (!caldata || !caldata->paprd_done) |
9f42c2b6 FF |
308 | return; |
309 | ||
310 | ath9k_ps_wakeup(sc); | |
ddfef792 | 311 | ar9003_paprd_enable(ah, false); |
9f42c2b6 | 312 | for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { |
9094537c | 313 | if (!(common->tx_chainmask & BIT(chain))) |
9f42c2b6 FF |
314 | continue; |
315 | ||
20bd2a09 | 316 | ar9003_paprd_populate_single_table(ah, caldata, chain); |
9f42c2b6 FF |
317 | } |
318 | ||
319 | ar9003_paprd_enable(ah, true); | |
320 | ath9k_ps_restore(sc); | |
321 | } | |
322 | ||
323 | void ath_paprd_calibrate(struct work_struct *work) | |
324 | { | |
325 | struct ath_softc *sc = container_of(work, struct ath_softc, paprd_work); | |
326 | struct ieee80211_hw *hw = sc->hw; | |
327 | struct ath_hw *ah = sc->sc_ah; | |
328 | struct ieee80211_hdr *hdr; | |
329 | struct sk_buff *skb = NULL; | |
330 | struct ieee80211_tx_info *tx_info; | |
331 | int band = hw->conf.channel->band; | |
332 | struct ieee80211_supported_band *sband = &sc->sbands[band]; | |
333 | struct ath_tx_control txctl; | |
20bd2a09 | 334 | struct ath9k_hw_cal_data *caldata = ah->caldata; |
9094537c | 335 | struct ath_common *common = ath9k_hw_common(ah); |
066dae93 | 336 | int ftype; |
9f42c2b6 FF |
337 | int chain_ok = 0; |
338 | int chain; | |
339 | int len = 1800; | |
340 | int time_left; | |
341 | int i; | |
342 | ||
20bd2a09 FF |
343 | if (!caldata) |
344 | return; | |
345 | ||
9f42c2b6 FF |
346 | skb = alloc_skb(len, GFP_KERNEL); |
347 | if (!skb) | |
348 | return; | |
349 | ||
350 | tx_info = IEEE80211_SKB_CB(skb); | |
351 | ||
352 | skb_put(skb, len); | |
353 | memset(skb->data, 0, len); | |
354 | hdr = (struct ieee80211_hdr *)skb->data; | |
355 | ftype = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC; | |
356 | hdr->frame_control = cpu_to_le16(ftype); | |
a3d3da14 | 357 | hdr->duration_id = cpu_to_le16(10); |
9f42c2b6 FF |
358 | memcpy(hdr->addr1, hw->wiphy->perm_addr, ETH_ALEN); |
359 | memcpy(hdr->addr2, hw->wiphy->perm_addr, ETH_ALEN); | |
360 | memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN); | |
361 | ||
362 | memset(&txctl, 0, sizeof(txctl)); | |
066dae93 | 363 | txctl.txq = sc->tx.txq_map[WME_AC_BE]; |
9f42c2b6 | 364 | |
47399f1a | 365 | ath9k_ps_wakeup(sc); |
9f42c2b6 FF |
366 | ar9003_paprd_init_table(ah); |
367 | for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { | |
9094537c | 368 | if (!(common->tx_chainmask & BIT(chain))) |
9f42c2b6 FF |
369 | continue; |
370 | ||
371 | chain_ok = 0; | |
372 | memset(tx_info, 0, sizeof(*tx_info)); | |
373 | tx_info->band = band; | |
374 | ||
375 | for (i = 0; i < 4; i++) { | |
376 | tx_info->control.rates[i].idx = sband->n_bitrates - 1; | |
377 | tx_info->control.rates[i].count = 6; | |
378 | } | |
379 | ||
380 | init_completion(&sc->paprd_complete); | |
82259b77 | 381 | sc->paprd_pending = true; |
9f42c2b6 FF |
382 | ar9003_paprd_setup_gain_table(ah, chain); |
383 | txctl.paprd = BIT(chain); | |
384 | if (ath_tx_start(hw, skb, &txctl) != 0) | |
385 | break; | |
386 | ||
387 | time_left = wait_for_completion_timeout(&sc->paprd_complete, | |
ca369eb4 | 388 | msecs_to_jiffies(ATH_PAPRD_TIMEOUT)); |
82259b77 | 389 | sc->paprd_pending = false; |
9f42c2b6 | 390 | if (!time_left) { |
226afe68 JP |
391 | ath_dbg(ath9k_hw_common(ah), ATH_DBG_CALIBRATE, |
392 | "Timeout waiting for paprd training on TX chain %d\n", | |
393 | chain); | |
ca369eb4 | 394 | goto fail_paprd; |
9f42c2b6 FF |
395 | } |
396 | ||
397 | if (!ar9003_paprd_is_done(ah)) | |
398 | break; | |
399 | ||
20bd2a09 | 400 | if (ar9003_paprd_create_curve(ah, caldata, chain) != 0) |
9f42c2b6 FF |
401 | break; |
402 | ||
403 | chain_ok = 1; | |
404 | } | |
405 | kfree_skb(skb); | |
406 | ||
407 | if (chain_ok) { | |
20bd2a09 | 408 | caldata->paprd_done = true; |
9f42c2b6 FF |
409 | ath_paprd_activate(sc); |
410 | } | |
411 | ||
ca369eb4 | 412 | fail_paprd: |
9f42c2b6 FF |
413 | ath9k_ps_restore(sc); |
414 | } | |
415 | ||
ff37e337 S |
416 | /* |
417 | * This routine performs the periodic noise floor calibration function | |
418 | * that is used to adjust and optimize the chip performance. This | |
419 | * takes environmental changes (location, temperature) into account. | |
420 | * When the task is complete, it reschedules itself depending on the | |
421 | * appropriate interval that was calculated. | |
422 | */ | |
55624204 | 423 | void ath_ani_calibrate(unsigned long data) |
ff37e337 | 424 | { |
20977d3e S |
425 | struct ath_softc *sc = (struct ath_softc *)data; |
426 | struct ath_hw *ah = sc->sc_ah; | |
c46917bb | 427 | struct ath_common *common = ath9k_hw_common(ah); |
ff37e337 S |
428 | bool longcal = false; |
429 | bool shortcal = false; | |
430 | bool aniflag = false; | |
431 | unsigned int timestamp = jiffies_to_msecs(jiffies); | |
6044474e | 432 | u32 cal_interval, short_cal_interval, long_cal_interval; |
b5bfc568 | 433 | unsigned long flags; |
6044474e FF |
434 | |
435 | if (ah->caldata && ah->caldata->nfcal_interference) | |
436 | long_cal_interval = ATH_LONG_CALINTERVAL_INT; | |
437 | else | |
438 | long_cal_interval = ATH_LONG_CALINTERVAL; | |
ff37e337 | 439 | |
20977d3e S |
440 | short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? |
441 | ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; | |
ff37e337 | 442 | |
1ffc1c61 JM |
443 | /* Only calibrate if awake */ |
444 | if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) | |
445 | goto set_timer; | |
446 | ||
447 | ath9k_ps_wakeup(sc); | |
448 | ||
ff37e337 | 449 | /* Long calibration runs independently of short calibration. */ |
6044474e | 450 | if ((timestamp - common->ani.longcal_timer) >= long_cal_interval) { |
ff37e337 | 451 | longcal = true; |
226afe68 | 452 | ath_dbg(common, ATH_DBG_ANI, "longcal @%lu\n", jiffies); |
3d536acf | 453 | common->ani.longcal_timer = timestamp; |
ff37e337 S |
454 | } |
455 | ||
17d7904d | 456 | /* Short calibration applies only while caldone is false */ |
3d536acf LR |
457 | if (!common->ani.caldone) { |
458 | if ((timestamp - common->ani.shortcal_timer) >= short_cal_interval) { | |
ff37e337 | 459 | shortcal = true; |
226afe68 JP |
460 | ath_dbg(common, ATH_DBG_ANI, |
461 | "shortcal @%lu\n", jiffies); | |
3d536acf LR |
462 | common->ani.shortcal_timer = timestamp; |
463 | common->ani.resetcal_timer = timestamp; | |
ff37e337 S |
464 | } |
465 | } else { | |
3d536acf | 466 | if ((timestamp - common->ani.resetcal_timer) >= |
ff37e337 | 467 | ATH_RESTART_CALINTERVAL) { |
3d536acf LR |
468 | common->ani.caldone = ath9k_hw_reset_calvalid(ah); |
469 | if (common->ani.caldone) | |
470 | common->ani.resetcal_timer = timestamp; | |
ff37e337 S |
471 | } |
472 | } | |
473 | ||
474 | /* Verify whether we must check ANI */ | |
e36b27af LR |
475 | if ((timestamp - common->ani.checkani_timer) >= |
476 | ah->config.ani_poll_interval) { | |
ff37e337 | 477 | aniflag = true; |
3d536acf | 478 | common->ani.checkani_timer = timestamp; |
ff37e337 S |
479 | } |
480 | ||
481 | /* Skip all processing if there's nothing to do. */ | |
482 | if (longcal || shortcal || aniflag) { | |
483 | /* Call ANI routine if necessary */ | |
b5bfc568 FF |
484 | if (aniflag) { |
485 | spin_lock_irqsave(&common->cc_lock, flags); | |
22e66a4c | 486 | ath9k_hw_ani_monitor(ah, ah->curchan); |
3430098a | 487 | ath_update_survey_stats(sc); |
b5bfc568 FF |
488 | spin_unlock_irqrestore(&common->cc_lock, flags); |
489 | } | |
ff37e337 S |
490 | |
491 | /* Perform calibration if necessary */ | |
492 | if (longcal || shortcal) { | |
3d536acf | 493 | common->ani.caldone = |
43c27613 LR |
494 | ath9k_hw_calibrate(ah, |
495 | ah->curchan, | |
496 | common->rx_chainmask, | |
497 | longcal); | |
ff37e337 S |
498 | } |
499 | } | |
500 | ||
1ffc1c61 JM |
501 | ath9k_ps_restore(sc); |
502 | ||
20977d3e | 503 | set_timer: |
ff37e337 S |
504 | /* |
505 | * Set timer interval based on previous results. | |
506 | * The interval must be the shortest necessary to satisfy ANI, | |
507 | * short calibration and long calibration. | |
508 | */ | |
aac9207e | 509 | cal_interval = ATH_LONG_CALINTERVAL; |
2660b81a | 510 | if (sc->sc_ah->config.enable_ani) |
e36b27af LR |
511 | cal_interval = min(cal_interval, |
512 | (u32)ah->config.ani_poll_interval); | |
3d536acf | 513 | if (!common->ani.caldone) |
20977d3e | 514 | cal_interval = min(cal_interval, (u32)short_cal_interval); |
ff37e337 | 515 | |
3d536acf | 516 | mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); |
20bd2a09 FF |
517 | if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && ah->caldata) { |
518 | if (!ah->caldata->paprd_done) | |
9f42c2b6 FF |
519 | ieee80211_queue_work(sc->hw, &sc->paprd_work); |
520 | else | |
521 | ath_paprd_activate(sc); | |
522 | } | |
ff37e337 S |
523 | } |
524 | ||
525 | /* | |
526 | * Update tx/rx chainmask. For legacy association, | |
527 | * hard code chainmask to 1x1, for 11n association, use | |
c97c92d9 VT |
528 | * the chainmask configuration, for bt coexistence, use |
529 | * the chainmask configuration even in legacy mode. | |
ff37e337 | 530 | */ |
0e2dedf9 | 531 | void ath_update_chainmask(struct ath_softc *sc, int is_ht) |
ff37e337 | 532 | { |
af03abec | 533 | struct ath_hw *ah = sc->sc_ah; |
43c27613 | 534 | struct ath_common *common = ath9k_hw_common(ah); |
af03abec | 535 | |
5ee08656 | 536 | if ((sc->sc_flags & SC_OP_OFFCHANNEL) || is_ht || |
766ec4a9 | 537 | (ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE)) { |
43c27613 LR |
538 | common->tx_chainmask = ah->caps.tx_chainmask; |
539 | common->rx_chainmask = ah->caps.rx_chainmask; | |
ff37e337 | 540 | } else { |
43c27613 LR |
541 | common->tx_chainmask = 1; |
542 | common->rx_chainmask = 1; | |
ff37e337 S |
543 | } |
544 | ||
226afe68 JP |
545 | ath_dbg(common, ATH_DBG_CONFIG, |
546 | "tx chmask: %d, rx chmask: %d\n", | |
547 | common->tx_chainmask, | |
548 | common->rx_chainmask); | |
ff37e337 S |
549 | } |
550 | ||
551 | static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) | |
552 | { | |
553 | struct ath_node *an; | |
ea066d5a | 554 | struct ath_hw *ah = sc->sc_ah; |
ff37e337 S |
555 | an = (struct ath_node *)sta->drv_priv; |
556 | ||
ea066d5a MSS |
557 | if ((ah->caps.hw_caps) & ATH9K_HW_CAP_APM) |
558 | sc->sc_flags |= SC_OP_ENABLE_APM; | |
559 | ||
87792efc | 560 | if (sc->sc_flags & SC_OP_TXAGGR) { |
ff37e337 | 561 | ath_tx_node_init(sc, an); |
9e98ac65 | 562 | an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + |
87792efc S |
563 | sta->ht_cap.ampdu_factor); |
564 | an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density); | |
565 | } | |
ff37e337 S |
566 | } |
567 | ||
568 | static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) | |
569 | { | |
570 | struct ath_node *an = (struct ath_node *)sta->drv_priv; | |
571 | ||
572 | if (sc->sc_flags & SC_OP_TXAGGR) | |
573 | ath_tx_node_cleanup(sc, an); | |
574 | } | |
575 | ||
347809fc FF |
576 | void ath_hw_check(struct work_struct *work) |
577 | { | |
578 | struct ath_softc *sc = container_of(work, struct ath_softc, hw_check_work); | |
579 | int i; | |
580 | ||
581 | ath9k_ps_wakeup(sc); | |
582 | ||
583 | for (i = 0; i < 3; i++) { | |
584 | if (ath9k_hw_check_alive(sc->sc_ah)) | |
585 | goto out; | |
586 | ||
587 | msleep(1); | |
588 | } | |
fac6b6a0 | 589 | ath_reset(sc, true); |
347809fc FF |
590 | |
591 | out: | |
592 | ath9k_ps_restore(sc); | |
593 | } | |
594 | ||
55624204 | 595 | void ath9k_tasklet(unsigned long data) |
ff37e337 S |
596 | { |
597 | struct ath_softc *sc = (struct ath_softc *)data; | |
af03abec | 598 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 599 | struct ath_common *common = ath9k_hw_common(ah); |
af03abec | 600 | |
17d7904d | 601 | u32 status = sc->intrstatus; |
b5c80475 | 602 | u32 rxmask; |
ff37e337 | 603 | |
153e080d VT |
604 | ath9k_ps_wakeup(sc); |
605 | ||
347809fc | 606 | if (status & ATH9K_INT_FATAL) { |
fac6b6a0 | 607 | ath_reset(sc, true); |
153e080d | 608 | ath9k_ps_restore(sc); |
ff37e337 | 609 | return; |
063d8be3 | 610 | } |
ff37e337 | 611 | |
6a6733f2 LR |
612 | spin_lock_bh(&sc->sc_pcu_lock); |
613 | ||
347809fc FF |
614 | if (!ath9k_hw_check_alive(ah)) |
615 | ieee80211_queue_work(sc->hw, &sc->hw_check_work); | |
616 | ||
b5c80475 FF |
617 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) |
618 | rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL | | |
619 | ATH9K_INT_RXORN); | |
620 | else | |
621 | rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN); | |
622 | ||
623 | if (status & rxmask) { | |
b5c80475 FF |
624 | /* Check for high priority Rx first */ |
625 | if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) && | |
626 | (status & ATH9K_INT_RXHP)) | |
627 | ath_rx_tasklet(sc, 0, true); | |
628 | ||
629 | ath_rx_tasklet(sc, 0, false); | |
ff37e337 S |
630 | } |
631 | ||
e5003249 VT |
632 | if (status & ATH9K_INT_TX) { |
633 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) | |
634 | ath_tx_edma_tasklet(sc); | |
635 | else | |
636 | ath_tx_tasklet(sc); | |
637 | } | |
063d8be3 | 638 | |
96148326 | 639 | if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) { |
54ce846e JM |
640 | /* |
641 | * TSF sync does not look correct; remain awake to sync with | |
642 | * the next Beacon. | |
643 | */ | |
226afe68 JP |
644 | ath_dbg(common, ATH_DBG_PS, |
645 | "TSFOOR - Sync with next Beacon\n"); | |
1b04b930 | 646 | sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC; |
54ce846e JM |
647 | } |
648 | ||
766ec4a9 | 649 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
ebb8e1d7 VT |
650 | if (status & ATH9K_INT_GENTIMER) |
651 | ath_gen_timer_isr(sc->sc_ah); | |
652 | ||
ff37e337 | 653 | /* re-enable hardware interrupt */ |
4df3071e | 654 | ath9k_hw_enable_interrupts(ah); |
6a6733f2 LR |
655 | |
656 | spin_unlock_bh(&sc->sc_pcu_lock); | |
153e080d | 657 | ath9k_ps_restore(sc); |
ff37e337 S |
658 | } |
659 | ||
6baff7f9 | 660 | irqreturn_t ath_isr(int irq, void *dev) |
ff37e337 | 661 | { |
063d8be3 S |
662 | #define SCHED_INTR ( \ |
663 | ATH9K_INT_FATAL | \ | |
664 | ATH9K_INT_RXORN | \ | |
665 | ATH9K_INT_RXEOL | \ | |
666 | ATH9K_INT_RX | \ | |
b5c80475 FF |
667 | ATH9K_INT_RXLP | \ |
668 | ATH9K_INT_RXHP | \ | |
063d8be3 S |
669 | ATH9K_INT_TX | \ |
670 | ATH9K_INT_BMISS | \ | |
671 | ATH9K_INT_CST | \ | |
ebb8e1d7 VT |
672 | ATH9K_INT_TSFOOR | \ |
673 | ATH9K_INT_GENTIMER) | |
063d8be3 | 674 | |
ff37e337 | 675 | struct ath_softc *sc = dev; |
cbe61d8a | 676 | struct ath_hw *ah = sc->sc_ah; |
b5bfc568 | 677 | struct ath_common *common = ath9k_hw_common(ah); |
ff37e337 S |
678 | enum ath9k_int status; |
679 | bool sched = false; | |
680 | ||
063d8be3 S |
681 | /* |
682 | * The hardware is not ready/present, don't | |
683 | * touch anything. Note this can happen early | |
684 | * on if the IRQ is shared. | |
685 | */ | |
686 | if (sc->sc_flags & SC_OP_INVALID) | |
687 | return IRQ_NONE; | |
ff37e337 | 688 | |
063d8be3 S |
689 | |
690 | /* shared irq, not for us */ | |
691 | ||
153e080d | 692 | if (!ath9k_hw_intrpend(ah)) |
063d8be3 | 693 | return IRQ_NONE; |
063d8be3 S |
694 | |
695 | /* | |
696 | * Figure out the reason(s) for the interrupt. Note | |
697 | * that the hal returns a pseudo-ISR that may include | |
698 | * bits we haven't explicitly enabled so we mask the | |
699 | * value to insure we only process bits we requested. | |
700 | */ | |
701 | ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ | |
3069168c | 702 | status &= ah->imask; /* discard unasked-for bits */ |
ff37e337 | 703 | |
063d8be3 S |
704 | /* |
705 | * If there are no status bits set, then this interrupt was not | |
706 | * for me (should have been caught above). | |
707 | */ | |
153e080d | 708 | if (!status) |
063d8be3 | 709 | return IRQ_NONE; |
ff37e337 | 710 | |
063d8be3 S |
711 | /* Cache the status */ |
712 | sc->intrstatus = status; | |
713 | ||
714 | if (status & SCHED_INTR) | |
715 | sched = true; | |
716 | ||
717 | /* | |
718 | * If a FATAL or RXORN interrupt is received, we have to reset the | |
719 | * chip immediately. | |
720 | */ | |
b5c80475 FF |
721 | if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) && |
722 | !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA))) | |
063d8be3 S |
723 | goto chip_reset; |
724 | ||
08578b8f LR |
725 | if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) && |
726 | (status & ATH9K_INT_BB_WATCHDOG)) { | |
b5bfc568 FF |
727 | |
728 | spin_lock(&common->cc_lock); | |
729 | ath_hw_cycle_counters_update(common); | |
08578b8f | 730 | ar9003_hw_bb_watchdog_dbg_info(ah); |
b5bfc568 FF |
731 | spin_unlock(&common->cc_lock); |
732 | ||
08578b8f LR |
733 | goto chip_reset; |
734 | } | |
735 | ||
063d8be3 S |
736 | if (status & ATH9K_INT_SWBA) |
737 | tasklet_schedule(&sc->bcon_tasklet); | |
738 | ||
739 | if (status & ATH9K_INT_TXURN) | |
740 | ath9k_hw_updatetxtriglevel(ah, true); | |
741 | ||
b5c80475 FF |
742 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { |
743 | if (status & ATH9K_INT_RXEOL) { | |
744 | ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN); | |
745 | ath9k_hw_set_interrupts(ah, ah->imask); | |
746 | } | |
747 | } | |
748 | ||
063d8be3 | 749 | if (status & ATH9K_INT_MIB) { |
ff37e337 | 750 | /* |
063d8be3 S |
751 | * Disable interrupts until we service the MIB |
752 | * interrupt; otherwise it will continue to | |
753 | * fire. | |
ff37e337 | 754 | */ |
4df3071e | 755 | ath9k_hw_disable_interrupts(ah); |
063d8be3 S |
756 | /* |
757 | * Let the hal handle the event. We assume | |
758 | * it will clear whatever condition caused | |
759 | * the interrupt. | |
760 | */ | |
88eac2da | 761 | spin_lock(&common->cc_lock); |
bfc472bb | 762 | ath9k_hw_proc_mib_event(ah); |
88eac2da | 763 | spin_unlock(&common->cc_lock); |
4df3071e | 764 | ath9k_hw_enable_interrupts(ah); |
063d8be3 | 765 | } |
ff37e337 | 766 | |
153e080d VT |
767 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
768 | if (status & ATH9K_INT_TIM_TIMER) { | |
ff9f0b63 LR |
769 | if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle)) |
770 | goto chip_reset; | |
063d8be3 S |
771 | /* Clear RxAbort bit so that we can |
772 | * receive frames */ | |
9ecdef4b | 773 | ath9k_setpower(sc, ATH9K_PM_AWAKE); |
153e080d | 774 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
1b04b930 | 775 | sc->ps_flags |= PS_WAIT_FOR_BEACON; |
ff37e337 | 776 | } |
063d8be3 S |
777 | |
778 | chip_reset: | |
ff37e337 | 779 | |
817e11de S |
780 | ath_debug_stat_interrupt(sc, status); |
781 | ||
ff37e337 | 782 | if (sched) { |
4df3071e FF |
783 | /* turn off every interrupt */ |
784 | ath9k_hw_disable_interrupts(ah); | |
ff37e337 S |
785 | tasklet_schedule(&sc->intr_tq); |
786 | } | |
787 | ||
788 | return IRQ_HANDLED; | |
063d8be3 S |
789 | |
790 | #undef SCHED_INTR | |
ff37e337 S |
791 | } |
792 | ||
f078f209 | 793 | static u32 ath_get_extchanmode(struct ath_softc *sc, |
99405f93 | 794 | struct ieee80211_channel *chan, |
094d05dc | 795 | enum nl80211_channel_type channel_type) |
f078f209 LR |
796 | { |
797 | u32 chanmode = 0; | |
f078f209 LR |
798 | |
799 | switch (chan->band) { | |
800 | case IEEE80211_BAND_2GHZ: | |
094d05dc S |
801 | switch(channel_type) { |
802 | case NL80211_CHAN_NO_HT: | |
803 | case NL80211_CHAN_HT20: | |
f078f209 | 804 | chanmode = CHANNEL_G_HT20; |
094d05dc S |
805 | break; |
806 | case NL80211_CHAN_HT40PLUS: | |
f078f209 | 807 | chanmode = CHANNEL_G_HT40PLUS; |
094d05dc S |
808 | break; |
809 | case NL80211_CHAN_HT40MINUS: | |
f078f209 | 810 | chanmode = CHANNEL_G_HT40MINUS; |
094d05dc S |
811 | break; |
812 | } | |
f078f209 LR |
813 | break; |
814 | case IEEE80211_BAND_5GHZ: | |
094d05dc S |
815 | switch(channel_type) { |
816 | case NL80211_CHAN_NO_HT: | |
817 | case NL80211_CHAN_HT20: | |
f078f209 | 818 | chanmode = CHANNEL_A_HT20; |
094d05dc S |
819 | break; |
820 | case NL80211_CHAN_HT40PLUS: | |
f078f209 | 821 | chanmode = CHANNEL_A_HT40PLUS; |
094d05dc S |
822 | break; |
823 | case NL80211_CHAN_HT40MINUS: | |
f078f209 | 824 | chanmode = CHANNEL_A_HT40MINUS; |
094d05dc S |
825 | break; |
826 | } | |
f078f209 LR |
827 | break; |
828 | default: | |
829 | break; | |
830 | } | |
831 | ||
832 | return chanmode; | |
833 | } | |
834 | ||
8feceb67 | 835 | static void ath9k_bss_assoc_info(struct ath_softc *sc, |
9fa23e17 | 836 | struct ieee80211_hw *hw, |
5640b08e | 837 | struct ieee80211_vif *vif, |
8feceb67 | 838 | struct ieee80211_bss_conf *bss_conf) |
f078f209 | 839 | { |
9fa23e17 | 840 | struct ath_wiphy *aphy = hw->priv; |
f2b2143e | 841 | struct ath_hw *ah = sc->sc_ah; |
1510718d | 842 | struct ath_common *common = ath9k_hw_common(ah); |
f078f209 | 843 | |
8feceb67 | 844 | if (bss_conf->assoc) { |
226afe68 JP |
845 | ath_dbg(common, ATH_DBG_CONFIG, |
846 | "Bss Info ASSOC %d, bssid: %pM\n", | |
847 | bss_conf->aid, common->curbssid); | |
f078f209 | 848 | |
8feceb67 | 849 | /* New association, store aid */ |
1510718d | 850 | common->curaid = bss_conf->aid; |
f2b2143e | 851 | ath9k_hw_write_associd(ah); |
2664f201 SB |
852 | |
853 | /* | |
854 | * Request a re-configuration of Beacon related timers | |
855 | * on the receipt of the first Beacon frame (i.e., | |
856 | * after time sync with the AP). | |
857 | */ | |
1b04b930 | 858 | sc->ps_flags |= PS_BEACON_SYNC; |
f078f209 | 859 | |
8feceb67 | 860 | /* Configure the beacon */ |
2c3db3d5 | 861 | ath_beacon_config(sc, vif); |
f078f209 | 862 | |
8feceb67 | 863 | /* Reset rssi stats */ |
9fa23e17 | 864 | aphy->last_rssi = ATH_RSSI_DUMMY_MARKER; |
22e66a4c | 865 | sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; |
f078f209 | 866 | |
6c3118e2 | 867 | sc->sc_flags |= SC_OP_ANI_RUN; |
3d536acf | 868 | ath_start_ani(common); |
8feceb67 | 869 | } else { |
226afe68 | 870 | ath_dbg(common, ATH_DBG_CONFIG, "Bss Info DISASSOC\n"); |
1510718d | 871 | common->curaid = 0; |
f38faa31 | 872 | /* Stop ANI */ |
6c3118e2 | 873 | sc->sc_flags &= ~SC_OP_ANI_RUN; |
3d536acf | 874 | del_timer_sync(&common->ani.timer); |
f078f209 | 875 | } |
8feceb67 | 876 | } |
f078f209 | 877 | |
68a89116 | 878 | void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw) |
500c064d | 879 | { |
cbe61d8a | 880 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 881 | struct ath_common *common = ath9k_hw_common(ah); |
68a89116 | 882 | struct ieee80211_channel *channel = hw->conf.channel; |
ae8d2858 | 883 | int r; |
500c064d | 884 | |
3cbb5dd7 | 885 | ath9k_ps_wakeup(sc); |
6a6733f2 LR |
886 | spin_lock_bh(&sc->sc_pcu_lock); |
887 | ||
93b1b37f | 888 | ath9k_hw_configpcipowersave(ah, 0, 0); |
ae8d2858 | 889 | |
159cd468 VT |
890 | if (!ah->curchan) |
891 | ah->curchan = ath_get_curchannel(sc, sc->hw); | |
892 | ||
20bd2a09 | 893 | r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); |
ae8d2858 | 894 | if (r) { |
3800276a JP |
895 | ath_err(common, |
896 | "Unable to reset channel (%u MHz), reset status %d\n", | |
897 | channel->center_freq, r); | |
500c064d | 898 | } |
500c064d VT |
899 | |
900 | ath_update_txpow(sc); | |
901 | if (ath_startrecv(sc) != 0) { | |
3800276a | 902 | ath_err(common, "Unable to restart recv logic\n"); |
4bdd1e97 | 903 | spin_unlock_bh(&sc->sc_pcu_lock); |
500c064d VT |
904 | return; |
905 | } | |
500c064d | 906 | if (sc->sc_flags & SC_OP_BEACONS) |
2c3db3d5 | 907 | ath_beacon_config(sc, NULL); /* restart beacons */ |
500c064d VT |
908 | |
909 | /* Re-Enable interrupts */ | |
3069168c | 910 | ath9k_hw_set_interrupts(ah, ah->imask); |
500c064d VT |
911 | |
912 | /* Enable LED */ | |
08fc5c1b | 913 | ath9k_hw_cfg_output(ah, ah->led_pin, |
500c064d | 914 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
08fc5c1b | 915 | ath9k_hw_set_gpio(ah, ah->led_pin, 0); |
500c064d | 916 | |
68a89116 | 917 | ieee80211_wake_queues(hw); |
6a6733f2 LR |
918 | spin_unlock_bh(&sc->sc_pcu_lock); |
919 | ||
3cbb5dd7 | 920 | ath9k_ps_restore(sc); |
500c064d VT |
921 | } |
922 | ||
68a89116 | 923 | void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw) |
500c064d | 924 | { |
cbe61d8a | 925 | struct ath_hw *ah = sc->sc_ah; |
68a89116 | 926 | struct ieee80211_channel *channel = hw->conf.channel; |
ae8d2858 | 927 | int r; |
500c064d | 928 | |
3cbb5dd7 | 929 | ath9k_ps_wakeup(sc); |
6a6733f2 LR |
930 | spin_lock_bh(&sc->sc_pcu_lock); |
931 | ||
68a89116 | 932 | ieee80211_stop_queues(hw); |
500c064d | 933 | |
982723df VN |
934 | /* |
935 | * Keep the LED on when the radio is disabled | |
936 | * during idle unassociated state. | |
937 | */ | |
938 | if (!sc->ps_idle) { | |
939 | ath9k_hw_set_gpio(ah, ah->led_pin, 1); | |
940 | ath9k_hw_cfg_gpio_input(ah, ah->led_pin); | |
941 | } | |
500c064d VT |
942 | |
943 | /* Disable interrupts */ | |
4df3071e | 944 | ath9k_hw_disable_interrupts(ah); |
500c064d | 945 | |
043a0405 | 946 | ath_drain_all_txq(sc, false); /* clear pending tx frames */ |
5e848f78 | 947 | |
500c064d VT |
948 | ath_stoprecv(sc); /* turn off frame recv */ |
949 | ath_flushrecv(sc); /* flush recv queue */ | |
950 | ||
159cd468 | 951 | if (!ah->curchan) |
68a89116 | 952 | ah->curchan = ath_get_curchannel(sc, hw); |
159cd468 | 953 | |
20bd2a09 | 954 | r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); |
ae8d2858 | 955 | if (r) { |
3800276a JP |
956 | ath_err(ath9k_hw_common(sc->sc_ah), |
957 | "Unable to reset channel (%u MHz), reset status %d\n", | |
958 | channel->center_freq, r); | |
500c064d | 959 | } |
500c064d VT |
960 | |
961 | ath9k_hw_phy_disable(ah); | |
5e848f78 | 962 | |
93b1b37f | 963 | ath9k_hw_configpcipowersave(ah, 1, 1); |
6a6733f2 LR |
964 | |
965 | spin_unlock_bh(&sc->sc_pcu_lock); | |
3cbb5dd7 | 966 | ath9k_ps_restore(sc); |
6a6733f2 | 967 | |
9ecdef4b | 968 | ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP); |
500c064d VT |
969 | } |
970 | ||
ff37e337 S |
971 | int ath_reset(struct ath_softc *sc, bool retry_tx) |
972 | { | |
cbe61d8a | 973 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 974 | struct ath_common *common = ath9k_hw_common(ah); |
030bb495 | 975 | struct ieee80211_hw *hw = sc->hw; |
ae8d2858 | 976 | int r; |
ff37e337 | 977 | |
2ab81d4a S |
978 | /* Stop ANI */ |
979 | del_timer_sync(&common->ani.timer); | |
980 | ||
6a6733f2 LR |
981 | spin_lock_bh(&sc->sc_pcu_lock); |
982 | ||
cc9c378a S |
983 | ieee80211_stop_queues(hw); |
984 | ||
4df3071e | 985 | ath9k_hw_disable_interrupts(ah); |
043a0405 | 986 | ath_drain_all_txq(sc, retry_tx); |
5e848f78 | 987 | |
ff37e337 S |
988 | ath_stoprecv(sc); |
989 | ath_flushrecv(sc); | |
990 | ||
20bd2a09 | 991 | r = ath9k_hw_reset(ah, sc->sc_ah->curchan, ah->caldata, false); |
ae8d2858 | 992 | if (r) |
3800276a JP |
993 | ath_err(common, |
994 | "Unable to reset hardware; reset status %d\n", r); | |
ff37e337 S |
995 | |
996 | if (ath_startrecv(sc) != 0) | |
3800276a | 997 | ath_err(common, "Unable to start recv logic\n"); |
ff37e337 S |
998 | |
999 | /* | |
1000 | * We may be doing a reset in response to a request | |
1001 | * that changes the channel so update any state that | |
1002 | * might change as a result. | |
1003 | */ | |
ff37e337 S |
1004 | ath_update_txpow(sc); |
1005 | ||
52b8ac92 | 1006 | if ((sc->sc_flags & SC_OP_BEACONS) || !(sc->sc_flags & (SC_OP_OFFCHANNEL))) |
2c3db3d5 | 1007 | ath_beacon_config(sc, NULL); /* restart beacons */ |
ff37e337 | 1008 | |
3069168c | 1009 | ath9k_hw_set_interrupts(ah, ah->imask); |
ff37e337 S |
1010 | |
1011 | if (retry_tx) { | |
1012 | int i; | |
1013 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { | |
1014 | if (ATH_TXQ_SETUP(sc, i)) { | |
b77f483f S |
1015 | spin_lock_bh(&sc->tx.txq[i].axq_lock); |
1016 | ath_txq_schedule(sc, &sc->tx.txq[i]); | |
1017 | spin_unlock_bh(&sc->tx.txq[i].axq_lock); | |
ff37e337 S |
1018 | } |
1019 | } | |
1020 | } | |
1021 | ||
cc9c378a | 1022 | ieee80211_wake_queues(hw); |
6a6733f2 | 1023 | spin_unlock_bh(&sc->sc_pcu_lock); |
cc9c378a | 1024 | |
2ab81d4a S |
1025 | /* Start ANI */ |
1026 | ath_start_ani(common); | |
1027 | ||
ae8d2858 | 1028 | return r; |
ff37e337 S |
1029 | } |
1030 | ||
5f8e077c LR |
1031 | /* XXX: Remove me once we don't depend on ath9k_channel for all |
1032 | * this redundant data */ | |
0e2dedf9 JM |
1033 | void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, |
1034 | struct ath9k_channel *ichan) | |
5f8e077c | 1035 | { |
5f8e077c LR |
1036 | struct ieee80211_channel *chan = hw->conf.channel; |
1037 | struct ieee80211_conf *conf = &hw->conf; | |
1038 | ||
1039 | ichan->channel = chan->center_freq; | |
1040 | ichan->chan = chan; | |
1041 | ||
1042 | if (chan->band == IEEE80211_BAND_2GHZ) { | |
1043 | ichan->chanmode = CHANNEL_G; | |
8813262e | 1044 | ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM | CHANNEL_G; |
5f8e077c LR |
1045 | } else { |
1046 | ichan->chanmode = CHANNEL_A; | |
1047 | ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM; | |
1048 | } | |
1049 | ||
25c56eec | 1050 | if (conf_is_ht(conf)) |
5f8e077c LR |
1051 | ichan->chanmode = ath_get_extchanmode(sc, chan, |
1052 | conf->channel_type); | |
5f8e077c LR |
1053 | } |
1054 | ||
ff37e337 S |
1055 | /**********************/ |
1056 | /* mac80211 callbacks */ | |
1057 | /**********************/ | |
1058 | ||
8feceb67 | 1059 | static int ath9k_start(struct ieee80211_hw *hw) |
f078f209 | 1060 | { |
bce048d7 JM |
1061 | struct ath_wiphy *aphy = hw->priv; |
1062 | struct ath_softc *sc = aphy->sc; | |
af03abec | 1063 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 1064 | struct ath_common *common = ath9k_hw_common(ah); |
8feceb67 | 1065 | struct ieee80211_channel *curchan = hw->conf.channel; |
ff37e337 | 1066 | struct ath9k_channel *init_channel; |
82880a7c | 1067 | int r; |
f078f209 | 1068 | |
226afe68 JP |
1069 | ath_dbg(common, ATH_DBG_CONFIG, |
1070 | "Starting driver with initial channel: %d MHz\n", | |
1071 | curchan->center_freq); | |
f078f209 | 1072 | |
141b38b6 S |
1073 | mutex_lock(&sc->mutex); |
1074 | ||
9580a222 JM |
1075 | if (ath9k_wiphy_started(sc)) { |
1076 | if (sc->chan_idx == curchan->hw_value) { | |
1077 | /* | |
1078 | * Already on the operational channel, the new wiphy | |
1079 | * can be marked active. | |
1080 | */ | |
1081 | aphy->state = ATH_WIPHY_ACTIVE; | |
1082 | ieee80211_wake_queues(hw); | |
1083 | } else { | |
1084 | /* | |
1085 | * Another wiphy is on another channel, start the new | |
1086 | * wiphy in paused state. | |
1087 | */ | |
1088 | aphy->state = ATH_WIPHY_PAUSED; | |
1089 | ieee80211_stop_queues(hw); | |
1090 | } | |
1091 | mutex_unlock(&sc->mutex); | |
1092 | return 0; | |
1093 | } | |
1094 | aphy->state = ATH_WIPHY_ACTIVE; | |
1095 | ||
8feceb67 | 1096 | /* setup initial channel */ |
f078f209 | 1097 | |
82880a7c | 1098 | sc->chan_idx = curchan->hw_value; |
f078f209 | 1099 | |
82880a7c | 1100 | init_channel = ath_get_curchannel(sc, hw); |
ff37e337 S |
1101 | |
1102 | /* Reset SERDES registers */ | |
af03abec | 1103 | ath9k_hw_configpcipowersave(ah, 0, 0); |
ff37e337 S |
1104 | |
1105 | /* | |
1106 | * The basic interface to setting the hardware in a good | |
1107 | * state is ``reset''. On return the hardware is known to | |
1108 | * be powered up and with interrupts disabled. This must | |
1109 | * be followed by initialization of the appropriate bits | |
1110 | * and then setup of the interrupt mask. | |
1111 | */ | |
4bdd1e97 | 1112 | spin_lock_bh(&sc->sc_pcu_lock); |
20bd2a09 | 1113 | r = ath9k_hw_reset(ah, init_channel, ah->caldata, false); |
ae8d2858 | 1114 | if (r) { |
3800276a JP |
1115 | ath_err(common, |
1116 | "Unable to reset hardware; reset status %d (freq %u MHz)\n", | |
1117 | r, curchan->center_freq); | |
4bdd1e97 | 1118 | spin_unlock_bh(&sc->sc_pcu_lock); |
141b38b6 | 1119 | goto mutex_unlock; |
ff37e337 | 1120 | } |
ff37e337 S |
1121 | |
1122 | /* | |
1123 | * This is needed only to setup initial state | |
1124 | * but it's best done after a reset. | |
1125 | */ | |
1126 | ath_update_txpow(sc); | |
8feceb67 | 1127 | |
ff37e337 S |
1128 | /* |
1129 | * Setup the hardware after reset: | |
1130 | * The receive engine is set going. | |
1131 | * Frame transmit is handled entirely | |
1132 | * in the frame output path; there's nothing to do | |
1133 | * here except setup the interrupt mask. | |
1134 | */ | |
1135 | if (ath_startrecv(sc) != 0) { | |
3800276a | 1136 | ath_err(common, "Unable to start recv logic\n"); |
141b38b6 | 1137 | r = -EIO; |
4bdd1e97 | 1138 | spin_unlock_bh(&sc->sc_pcu_lock); |
141b38b6 | 1139 | goto mutex_unlock; |
f078f209 | 1140 | } |
4bdd1e97 | 1141 | spin_unlock_bh(&sc->sc_pcu_lock); |
8feceb67 | 1142 | |
ff37e337 | 1143 | /* Setup our intr mask. */ |
b5c80475 FF |
1144 | ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL | |
1145 | ATH9K_INT_RXORN | ATH9K_INT_FATAL | | |
1146 | ATH9K_INT_GLOBAL; | |
1147 | ||
1148 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) | |
08578b8f LR |
1149 | ah->imask |= ATH9K_INT_RXHP | |
1150 | ATH9K_INT_RXLP | | |
1151 | ATH9K_INT_BB_WATCHDOG; | |
b5c80475 FF |
1152 | else |
1153 | ah->imask |= ATH9K_INT_RX; | |
ff37e337 | 1154 | |
364734fa | 1155 | ah->imask |= ATH9K_INT_GTT; |
ff37e337 | 1156 | |
af03abec | 1157 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) |
3069168c | 1158 | ah->imask |= ATH9K_INT_CST; |
ff37e337 | 1159 | |
ff37e337 | 1160 | sc->sc_flags &= ~SC_OP_INVALID; |
5f841b41 | 1161 | sc->sc_ah->is_monitoring = false; |
ff37e337 S |
1162 | |
1163 | /* Disable BMISS interrupt when we're not associated */ | |
3069168c PR |
1164 | ah->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); |
1165 | ath9k_hw_set_interrupts(ah, ah->imask); | |
ff37e337 | 1166 | |
bce048d7 | 1167 | ieee80211_wake_queues(hw); |
ff37e337 | 1168 | |
42935eca | 1169 | ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); |
164ace38 | 1170 | |
766ec4a9 LR |
1171 | if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) && |
1172 | !ah->btcoex_hw.enabled) { | |
5e197292 LR |
1173 | ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, |
1174 | AR_STOMP_LOW_WLAN_WGHT); | |
af03abec | 1175 | ath9k_hw_btcoex_enable(ah); |
f985ad12 | 1176 | |
5bb12791 LR |
1177 | if (common->bus_ops->bt_coex_prep) |
1178 | common->bus_ops->bt_coex_prep(common); | |
766ec4a9 | 1179 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
75d7839f | 1180 | ath9k_btcoex_timer_resume(sc); |
1773912b VT |
1181 | } |
1182 | ||
98c316e3 | 1183 | pm_qos_update_request(&sc->pm_qos_req, 55); |
10598c12 | 1184 | |
8060e169 VT |
1185 | if (ah->caps.pcie_lcr_extsync_en && common->bus_ops->extn_synch_en) |
1186 | common->bus_ops->extn_synch_en(common); | |
1187 | ||
141b38b6 S |
1188 | mutex_unlock: |
1189 | mutex_unlock(&sc->mutex); | |
1190 | ||
ae8d2858 | 1191 | return r; |
f078f209 LR |
1192 | } |
1193 | ||
8feceb67 VT |
1194 | static int ath9k_tx(struct ieee80211_hw *hw, |
1195 | struct sk_buff *skb) | |
f078f209 | 1196 | { |
bce048d7 JM |
1197 | struct ath_wiphy *aphy = hw->priv; |
1198 | struct ath_softc *sc = aphy->sc; | |
c46917bb | 1199 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
528f0c6b | 1200 | struct ath_tx_control txctl; |
1bc14880 | 1201 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
528f0c6b | 1202 | |
8089cc47 | 1203 | if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) { |
226afe68 JP |
1204 | ath_dbg(common, ATH_DBG_XMIT, |
1205 | "ath9k: %s: TX in unexpected wiphy state %d\n", | |
1206 | wiphy_name(hw->wiphy), aphy->state); | |
ee166a0e JM |
1207 | goto exit; |
1208 | } | |
1209 | ||
96148326 | 1210 | if (sc->ps_enabled) { |
dc8c4585 JM |
1211 | /* |
1212 | * mac80211 does not set PM field for normal data frames, so we | |
1213 | * need to update that based on the current PS mode. | |
1214 | */ | |
1215 | if (ieee80211_is_data(hdr->frame_control) && | |
1216 | !ieee80211_is_nullfunc(hdr->frame_control) && | |
1217 | !ieee80211_has_pm(hdr->frame_control)) { | |
226afe68 JP |
1218 | ath_dbg(common, ATH_DBG_PS, |
1219 | "Add PM=1 for a TX frame while in PS mode\n"); | |
dc8c4585 JM |
1220 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); |
1221 | } | |
1222 | } | |
1223 | ||
9a23f9ca JM |
1224 | if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) { |
1225 | /* | |
1226 | * We are using PS-Poll and mac80211 can request TX while in | |
1227 | * power save mode. Need to wake up hardware for the TX to be | |
1228 | * completed and if needed, also for RX of buffered frames. | |
1229 | */ | |
9a23f9ca | 1230 | ath9k_ps_wakeup(sc); |
fdf76622 VT |
1231 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
1232 | ath9k_hw_setrxabort(sc->sc_ah, 0); | |
9a23f9ca | 1233 | if (ieee80211_is_pspoll(hdr->frame_control)) { |
226afe68 JP |
1234 | ath_dbg(common, ATH_DBG_PS, |
1235 | "Sending PS-Poll to pick a buffered frame\n"); | |
1b04b930 | 1236 | sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA; |
9a23f9ca | 1237 | } else { |
226afe68 JP |
1238 | ath_dbg(common, ATH_DBG_PS, |
1239 | "Wake up to complete TX\n"); | |
1b04b930 | 1240 | sc->ps_flags |= PS_WAIT_FOR_TX_ACK; |
9a23f9ca JM |
1241 | } |
1242 | /* | |
1243 | * The actual restore operation will happen only after | |
1244 | * the sc_flags bit is cleared. We are just dropping | |
1245 | * the ps_usecount here. | |
1246 | */ | |
1247 | ath9k_ps_restore(sc); | |
1248 | } | |
1249 | ||
528f0c6b | 1250 | memset(&txctl, 0, sizeof(struct ath_tx_control)); |
066dae93 | 1251 | txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)]; |
528f0c6b | 1252 | |
226afe68 | 1253 | ath_dbg(common, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); |
8feceb67 | 1254 | |
c52f33d0 | 1255 | if (ath_tx_start(hw, skb, &txctl) != 0) { |
226afe68 | 1256 | ath_dbg(common, ATH_DBG_XMIT, "TX failed\n"); |
528f0c6b | 1257 | goto exit; |
8feceb67 VT |
1258 | } |
1259 | ||
528f0c6b S |
1260 | return 0; |
1261 | exit: | |
1262 | dev_kfree_skb_any(skb); | |
8feceb67 | 1263 | return 0; |
f078f209 LR |
1264 | } |
1265 | ||
8feceb67 | 1266 | static void ath9k_stop(struct ieee80211_hw *hw) |
f078f209 | 1267 | { |
bce048d7 JM |
1268 | struct ath_wiphy *aphy = hw->priv; |
1269 | struct ath_softc *sc = aphy->sc; | |
af03abec | 1270 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 1271 | struct ath_common *common = ath9k_hw_common(ah); |
447a42c2 | 1272 | int i; |
f078f209 | 1273 | |
4c483817 S |
1274 | mutex_lock(&sc->mutex); |
1275 | ||
9580a222 JM |
1276 | aphy->state = ATH_WIPHY_INACTIVE; |
1277 | ||
9a75c2ff VN |
1278 | if (led_blink) |
1279 | cancel_delayed_work_sync(&sc->ath_led_blink_work); | |
1280 | ||
c94dbff7 | 1281 | cancel_delayed_work_sync(&sc->tx_complete_work); |
9f42c2b6 | 1282 | cancel_work_sync(&sc->paprd_work); |
347809fc | 1283 | cancel_work_sync(&sc->hw_check_work); |
c94dbff7 | 1284 | |
447a42c2 RM |
1285 | for (i = 0; i < sc->num_sec_wiphy; i++) { |
1286 | if (sc->sec_wiphy[i]) | |
1287 | break; | |
1288 | } | |
1289 | ||
1290 | if (i == sc->num_sec_wiphy) { | |
c94dbff7 LR |
1291 | cancel_delayed_work_sync(&sc->wiphy_work); |
1292 | cancel_work_sync(&sc->chan_work); | |
1293 | } | |
1294 | ||
9c84b797 | 1295 | if (sc->sc_flags & SC_OP_INVALID) { |
226afe68 | 1296 | ath_dbg(common, ATH_DBG_ANY, "Device not present\n"); |
4c483817 | 1297 | mutex_unlock(&sc->mutex); |
9c84b797 S |
1298 | return; |
1299 | } | |
8feceb67 | 1300 | |
9580a222 JM |
1301 | if (ath9k_wiphy_started(sc)) { |
1302 | mutex_unlock(&sc->mutex); | |
1303 | return; /* another wiphy still in use */ | |
1304 | } | |
1305 | ||
3867cf6a S |
1306 | /* Ensure HW is awake when we try to shut it down. */ |
1307 | ath9k_ps_wakeup(sc); | |
1308 | ||
766ec4a9 | 1309 | if (ah->btcoex_hw.enabled) { |
af03abec | 1310 | ath9k_hw_btcoex_disable(ah); |
766ec4a9 | 1311 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
75d7839f | 1312 | ath9k_btcoex_timer_pause(sc); |
1773912b VT |
1313 | } |
1314 | ||
6a6733f2 LR |
1315 | spin_lock_bh(&sc->sc_pcu_lock); |
1316 | ||
ff37e337 S |
1317 | /* make sure h/w will not generate any interrupt |
1318 | * before setting the invalid flag. */ | |
4df3071e | 1319 | ath9k_hw_disable_interrupts(ah); |
ff37e337 S |
1320 | |
1321 | if (!(sc->sc_flags & SC_OP_INVALID)) { | |
043a0405 | 1322 | ath_drain_all_txq(sc, false); |
ff37e337 | 1323 | ath_stoprecv(sc); |
af03abec | 1324 | ath9k_hw_phy_disable(ah); |
6a6733f2 | 1325 | } else |
b77f483f | 1326 | sc->rx.rxlink = NULL; |
ff37e337 | 1327 | |
ff37e337 | 1328 | /* disable HAL and put h/w to sleep */ |
af03abec LR |
1329 | ath9k_hw_disable(ah); |
1330 | ath9k_hw_configpcipowersave(ah, 1, 1); | |
6a6733f2 LR |
1331 | |
1332 | spin_unlock_bh(&sc->sc_pcu_lock); | |
1333 | ||
3867cf6a S |
1334 | ath9k_ps_restore(sc); |
1335 | ||
1336 | /* Finally, put the chip in FULL SLEEP mode */ | |
9ecdef4b | 1337 | ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP); |
ff37e337 S |
1338 | |
1339 | sc->sc_flags |= SC_OP_INVALID; | |
500c064d | 1340 | |
98c316e3 | 1341 | pm_qos_update_request(&sc->pm_qos_req, PM_QOS_DEFAULT_VALUE); |
10598c12 | 1342 | |
141b38b6 S |
1343 | mutex_unlock(&sc->mutex); |
1344 | ||
226afe68 | 1345 | ath_dbg(common, ATH_DBG_CONFIG, "Driver halt\n"); |
f078f209 LR |
1346 | } |
1347 | ||
8feceb67 | 1348 | static int ath9k_add_interface(struct ieee80211_hw *hw, |
1ed32e4f | 1349 | struct ieee80211_vif *vif) |
f078f209 | 1350 | { |
bce048d7 JM |
1351 | struct ath_wiphy *aphy = hw->priv; |
1352 | struct ath_softc *sc = aphy->sc; | |
3069168c PR |
1353 | struct ath_hw *ah = sc->sc_ah; |
1354 | struct ath_common *common = ath9k_hw_common(ah); | |
1ed32e4f | 1355 | struct ath_vif *avp = (void *)vif->drv_priv; |
d97809db | 1356 | enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; |
2c3db3d5 | 1357 | int ret = 0; |
8feceb67 | 1358 | |
141b38b6 S |
1359 | mutex_lock(&sc->mutex); |
1360 | ||
1ed32e4f | 1361 | switch (vif->type) { |
05c914fe | 1362 | case NL80211_IFTYPE_STATION: |
d97809db | 1363 | ic_opmode = NL80211_IFTYPE_STATION; |
f078f209 | 1364 | break; |
e51f3eff BJ |
1365 | case NL80211_IFTYPE_WDS: |
1366 | ic_opmode = NL80211_IFTYPE_WDS; | |
1367 | break; | |
05c914fe | 1368 | case NL80211_IFTYPE_ADHOC: |
05c914fe | 1369 | case NL80211_IFTYPE_AP: |
9cb5412b | 1370 | case NL80211_IFTYPE_MESH_POINT: |
2c3db3d5 JM |
1371 | if (sc->nbcnvifs >= ATH_BCBUF) { |
1372 | ret = -ENOBUFS; | |
1373 | goto out; | |
1374 | } | |
1ed32e4f | 1375 | ic_opmode = vif->type; |
f078f209 LR |
1376 | break; |
1377 | default: | |
3800276a JP |
1378 | ath_err(common, "Interface type %d not yet supported\n", |
1379 | vif->type); | |
2c3db3d5 JM |
1380 | ret = -EOPNOTSUPP; |
1381 | goto out; | |
f078f209 LR |
1382 | } |
1383 | ||
226afe68 JP |
1384 | ath_dbg(common, ATH_DBG_CONFIG, |
1385 | "Attach a VIF of type: %d\n", ic_opmode); | |
8feceb67 | 1386 | |
17d7904d | 1387 | /* Set the VIF opmode */ |
5640b08e S |
1388 | avp->av_opmode = ic_opmode; |
1389 | avp->av_bslot = -1; | |
1390 | ||
2c3db3d5 | 1391 | sc->nvifs++; |
8ca21f01 | 1392 | |
364734fa | 1393 | ath9k_set_bssid_mask(hw, vif); |
8ca21f01 | 1394 | |
2c3db3d5 JM |
1395 | if (sc->nvifs > 1) |
1396 | goto out; /* skip global settings for secondary vif */ | |
1397 | ||
b238e90e | 1398 | if (ic_opmode == NL80211_IFTYPE_AP) { |
3069168c | 1399 | ath9k_hw_set_tsfadjust(ah, 1); |
b238e90e S |
1400 | sc->sc_flags |= SC_OP_TSF_RESET; |
1401 | } | |
5640b08e | 1402 | |
5640b08e | 1403 | /* Set the device opmode */ |
3069168c | 1404 | ah->opmode = ic_opmode; |
5640b08e | 1405 | |
4e30ffa2 VN |
1406 | /* |
1407 | * Enable MIB interrupts when there are hardware phy counters. | |
1408 | * Note we only do this (at the moment) for station mode. | |
1409 | */ | |
1ed32e4f JB |
1410 | if ((vif->type == NL80211_IFTYPE_STATION) || |
1411 | (vif->type == NL80211_IFTYPE_ADHOC) || | |
1412 | (vif->type == NL80211_IFTYPE_MESH_POINT)) { | |
3448f912 LR |
1413 | if (ah->config.enable_ani) |
1414 | ah->imask |= ATH9K_INT_MIB; | |
3069168c | 1415 | ah->imask |= ATH9K_INT_TSFOOR; |
4af9cf4f S |
1416 | } |
1417 | ||
3069168c | 1418 | ath9k_hw_set_interrupts(ah, ah->imask); |
4e30ffa2 | 1419 | |
1ed32e4f | 1420 | if (vif->type == NL80211_IFTYPE_AP || |
5f841b41 | 1421 | vif->type == NL80211_IFTYPE_ADHOC) { |
6c3118e2 | 1422 | sc->sc_flags |= SC_OP_ANI_RUN; |
3d536acf | 1423 | ath_start_ani(common); |
6c3118e2 | 1424 | } |
6f255425 | 1425 | |
2c3db3d5 | 1426 | out: |
141b38b6 | 1427 | mutex_unlock(&sc->mutex); |
2c3db3d5 | 1428 | return ret; |
f078f209 LR |
1429 | } |
1430 | ||
8feceb67 | 1431 | static void ath9k_remove_interface(struct ieee80211_hw *hw, |
1ed32e4f | 1432 | struct ieee80211_vif *vif) |
f078f209 | 1433 | { |
bce048d7 JM |
1434 | struct ath_wiphy *aphy = hw->priv; |
1435 | struct ath_softc *sc = aphy->sc; | |
c46917bb | 1436 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
1ed32e4f | 1437 | struct ath_vif *avp = (void *)vif->drv_priv; |
f078f209 | 1438 | |
226afe68 | 1439 | ath_dbg(common, ATH_DBG_CONFIG, "Detach Interface\n"); |
f078f209 | 1440 | |
141b38b6 S |
1441 | mutex_lock(&sc->mutex); |
1442 | ||
6f255425 | 1443 | /* Stop ANI */ |
6c3118e2 | 1444 | sc->sc_flags &= ~SC_OP_ANI_RUN; |
3d536acf | 1445 | del_timer_sync(&common->ani.timer); |
580f0b8a | 1446 | |
8feceb67 | 1447 | /* Reclaim beacon resources */ |
9cb5412b PE |
1448 | if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) || |
1449 | (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) || | |
1450 | (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) { | |
884a963f RM |
1451 | /* Disable SWBA interrupt */ |
1452 | sc->sc_ah->imask &= ~ATH9K_INT_SWBA; | |
5f70a88f | 1453 | ath9k_ps_wakeup(sc); |
884a963f | 1454 | ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask); |
b77f483f | 1455 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
5f70a88f | 1456 | ath9k_ps_restore(sc); |
884a963f | 1457 | tasklet_kill(&sc->bcon_tasklet); |
580f0b8a | 1458 | } |
f078f209 | 1459 | |
74401773 | 1460 | ath_beacon_return(sc, avp); |
8feceb67 | 1461 | sc->sc_flags &= ~SC_OP_BEACONS; |
f078f209 | 1462 | |
884a963f RM |
1463 | if (sc->nbcnvifs) { |
1464 | /* Re-enable SWBA interrupt */ | |
1465 | sc->sc_ah->imask |= ATH9K_INT_SWBA; | |
46047784 RM |
1466 | ath9k_ps_wakeup(sc); |
1467 | ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask); | |
1468 | ath9k_ps_restore(sc); | |
2c3db3d5 JM |
1469 | } |
1470 | ||
17d7904d | 1471 | sc->nvifs--; |
141b38b6 S |
1472 | |
1473 | mutex_unlock(&sc->mutex); | |
f078f209 LR |
1474 | } |
1475 | ||
fbab7390 | 1476 | static void ath9k_enable_ps(struct ath_softc *sc) |
3f7c5c10 | 1477 | { |
3069168c PR |
1478 | struct ath_hw *ah = sc->sc_ah; |
1479 | ||
3f7c5c10 | 1480 | sc->ps_enabled = true; |
3069168c PR |
1481 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { |
1482 | if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) { | |
1483 | ah->imask |= ATH9K_INT_TIM_TIMER; | |
1484 | ath9k_hw_set_interrupts(ah, ah->imask); | |
3f7c5c10 | 1485 | } |
fdf76622 | 1486 | ath9k_hw_setrxabort(ah, 1); |
3f7c5c10 | 1487 | } |
3f7c5c10 SB |
1488 | } |
1489 | ||
845d708e SB |
1490 | static void ath9k_disable_ps(struct ath_softc *sc) |
1491 | { | |
1492 | struct ath_hw *ah = sc->sc_ah; | |
1493 | ||
1494 | sc->ps_enabled = false; | |
1495 | ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); | |
1496 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { | |
1497 | ath9k_hw_setrxabort(ah, 0); | |
1498 | sc->ps_flags &= ~(PS_WAIT_FOR_BEACON | | |
1499 | PS_WAIT_FOR_CAB | | |
1500 | PS_WAIT_FOR_PSPOLL_DATA | | |
1501 | PS_WAIT_FOR_TX_ACK); | |
1502 | if (ah->imask & ATH9K_INT_TIM_TIMER) { | |
1503 | ah->imask &= ~ATH9K_INT_TIM_TIMER; | |
1504 | ath9k_hw_set_interrupts(ah, ah->imask); | |
1505 | } | |
1506 | } | |
1507 | ||
1508 | } | |
1509 | ||
e8975581 | 1510 | static int ath9k_config(struct ieee80211_hw *hw, u32 changed) |
f078f209 | 1511 | { |
bce048d7 JM |
1512 | struct ath_wiphy *aphy = hw->priv; |
1513 | struct ath_softc *sc = aphy->sc; | |
3430098a FF |
1514 | struct ath_hw *ah = sc->sc_ah; |
1515 | struct ath_common *common = ath9k_hw_common(ah); | |
e8975581 | 1516 | struct ieee80211_conf *conf = &hw->conf; |
194b7c13 | 1517 | bool disable_radio; |
f078f209 | 1518 | |
aa33de09 | 1519 | mutex_lock(&sc->mutex); |
141b38b6 | 1520 | |
194b7c13 LR |
1521 | /* |
1522 | * Leave this as the first check because we need to turn on the | |
1523 | * radio if it was disabled before prior to processing the rest | |
1524 | * of the changes. Likewise we must only disable the radio towards | |
1525 | * the end. | |
1526 | */ | |
64839170 | 1527 | if (changed & IEEE80211_CONF_CHANGE_IDLE) { |
194b7c13 LR |
1528 | bool enable_radio; |
1529 | bool all_wiphys_idle; | |
1530 | bool idle = !!(conf->flags & IEEE80211_CONF_IDLE); | |
64839170 LR |
1531 | |
1532 | spin_lock_bh(&sc->wiphy_lock); | |
1533 | all_wiphys_idle = ath9k_all_wiphys_idle(sc); | |
194b7c13 LR |
1534 | ath9k_set_wiphy_idle(aphy, idle); |
1535 | ||
11446011 | 1536 | enable_radio = (!idle && all_wiphys_idle); |
194b7c13 LR |
1537 | |
1538 | /* | |
1539 | * After we unlock here its possible another wiphy | |
1540 | * can be re-renabled so to account for that we will | |
1541 | * only disable the radio toward the end of this routine | |
1542 | * if by then all wiphys are still idle. | |
1543 | */ | |
64839170 LR |
1544 | spin_unlock_bh(&sc->wiphy_lock); |
1545 | ||
194b7c13 | 1546 | if (enable_radio) { |
1dbfd9d4 | 1547 | sc->ps_idle = false; |
68a89116 | 1548 | ath_radio_enable(sc, hw); |
226afe68 JP |
1549 | ath_dbg(common, ATH_DBG_CONFIG, |
1550 | "not-idle: enabling radio\n"); | |
64839170 LR |
1551 | } |
1552 | } | |
1553 | ||
e7824a50 LR |
1554 | /* |
1555 | * We just prepare to enable PS. We have to wait until our AP has | |
1556 | * ACK'd our null data frame to disable RX otherwise we'll ignore | |
1557 | * those ACKs and end up retransmitting the same null data frames. | |
1558 | * IEEE80211_CONF_CHANGE_PS is only passed by mac80211 for STA mode. | |
1559 | */ | |
3cbb5dd7 | 1560 | if (changed & IEEE80211_CONF_CHANGE_PS) { |
8ab2cd09 LR |
1561 | unsigned long flags; |
1562 | spin_lock_irqsave(&sc->sc_pm_lock, flags); | |
fbab7390 SB |
1563 | if (conf->flags & IEEE80211_CONF_PS) |
1564 | ath9k_enable_ps(sc); | |
845d708e SB |
1565 | else |
1566 | ath9k_disable_ps(sc); | |
8ab2cd09 | 1567 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); |
3cbb5dd7 VN |
1568 | } |
1569 | ||
199afd9d S |
1570 | if (changed & IEEE80211_CONF_CHANGE_MONITOR) { |
1571 | if (conf->flags & IEEE80211_CONF_MONITOR) { | |
226afe68 JP |
1572 | ath_dbg(common, ATH_DBG_CONFIG, |
1573 | "Monitor mode is enabled\n"); | |
5f841b41 RM |
1574 | sc->sc_ah->is_monitoring = true; |
1575 | } else { | |
226afe68 JP |
1576 | ath_dbg(common, ATH_DBG_CONFIG, |
1577 | "Monitor mode is disabled\n"); | |
5f841b41 | 1578 | sc->sc_ah->is_monitoring = false; |
199afd9d S |
1579 | } |
1580 | } | |
1581 | ||
4797938c | 1582 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
99405f93 | 1583 | struct ieee80211_channel *curchan = hw->conf.channel; |
5f8e077c | 1584 | int pos = curchan->hw_value; |
3430098a FF |
1585 | int old_pos = -1; |
1586 | unsigned long flags; | |
1587 | ||
1588 | if (ah->curchan) | |
1589 | old_pos = ah->curchan - &ah->channels[0]; | |
ae5eb026 | 1590 | |
0e2dedf9 JM |
1591 | aphy->chan_idx = pos; |
1592 | aphy->chan_is_ht = conf_is_ht(conf); | |
5ee08656 FF |
1593 | if (hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) |
1594 | sc->sc_flags |= SC_OP_OFFCHANNEL; | |
1595 | else | |
1596 | sc->sc_flags &= ~SC_OP_OFFCHANNEL; | |
0e2dedf9 | 1597 | |
8089cc47 JM |
1598 | if (aphy->state == ATH_WIPHY_SCAN || |
1599 | aphy->state == ATH_WIPHY_ACTIVE) | |
1600 | ath9k_wiphy_pause_all_forced(sc, aphy); | |
1601 | else { | |
1602 | /* | |
1603 | * Do not change operational channel based on a paused | |
1604 | * wiphy changes. | |
1605 | */ | |
1606 | goto skip_chan_change; | |
1607 | } | |
0e2dedf9 | 1608 | |
226afe68 JP |
1609 | ath_dbg(common, ATH_DBG_CONFIG, "Set channel: %d MHz\n", |
1610 | curchan->center_freq); | |
f078f209 | 1611 | |
5f8e077c | 1612 | /* XXX: remove me eventualy */ |
0e2dedf9 | 1613 | ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]); |
e11602b7 | 1614 | |
ecf70441 | 1615 | ath_update_chainmask(sc, conf_is_ht(conf)); |
86060f0d | 1616 | |
3430098a FF |
1617 | /* update survey stats for the old channel before switching */ |
1618 | spin_lock_irqsave(&common->cc_lock, flags); | |
1619 | ath_update_survey_stats(sc); | |
1620 | spin_unlock_irqrestore(&common->cc_lock, flags); | |
1621 | ||
1622 | /* | |
1623 | * If the operating channel changes, change the survey in-use flags | |
1624 | * along with it. | |
1625 | * Reset the survey data for the new channel, unless we're switching | |
1626 | * back to the operating channel from an off-channel operation. | |
1627 | */ | |
1628 | if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) && | |
1629 | sc->cur_survey != &sc->survey[pos]) { | |
1630 | ||
1631 | if (sc->cur_survey) | |
1632 | sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE; | |
1633 | ||
1634 | sc->cur_survey = &sc->survey[pos]; | |
1635 | ||
1636 | memset(sc->cur_survey, 0, sizeof(struct survey_info)); | |
1637 | sc->cur_survey->filled |= SURVEY_INFO_IN_USE; | |
1638 | } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) { | |
1639 | memset(&sc->survey[pos], 0, sizeof(struct survey_info)); | |
1640 | } | |
1641 | ||
0e2dedf9 | 1642 | if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { |
3800276a | 1643 | ath_err(common, "Unable to set channel\n"); |
aa33de09 | 1644 | mutex_unlock(&sc->mutex); |
e11602b7 S |
1645 | return -EINVAL; |
1646 | } | |
3430098a FF |
1647 | |
1648 | /* | |
1649 | * The most recent snapshot of channel->noisefloor for the old | |
1650 | * channel is only available after the hardware reset. Copy it to | |
1651 | * the survey stats now. | |
1652 | */ | |
1653 | if (old_pos >= 0) | |
1654 | ath_update_survey_nf(sc, old_pos); | |
094d05dc | 1655 | } |
f078f209 | 1656 | |
8089cc47 | 1657 | skip_chan_change: |
c9f6a656 | 1658 | if (changed & IEEE80211_CONF_CHANGE_POWER) { |
17d7904d | 1659 | sc->config.txpowlimit = 2 * conf->power_level; |
c9f6a656 LR |
1660 | ath_update_txpow(sc); |
1661 | } | |
f078f209 | 1662 | |
194b7c13 LR |
1663 | spin_lock_bh(&sc->wiphy_lock); |
1664 | disable_radio = ath9k_all_wiphys_idle(sc); | |
1665 | spin_unlock_bh(&sc->wiphy_lock); | |
1666 | ||
64839170 | 1667 | if (disable_radio) { |
226afe68 | 1668 | ath_dbg(common, ATH_DBG_CONFIG, "idle: disabling radio\n"); |
1dbfd9d4 | 1669 | sc->ps_idle = true; |
68a89116 | 1670 | ath_radio_disable(sc, hw); |
64839170 LR |
1671 | } |
1672 | ||
aa33de09 | 1673 | mutex_unlock(&sc->mutex); |
141b38b6 | 1674 | |
f078f209 LR |
1675 | return 0; |
1676 | } | |
1677 | ||
8feceb67 VT |
1678 | #define SUPPORTED_FILTERS \ |
1679 | (FIF_PROMISC_IN_BSS | \ | |
1680 | FIF_ALLMULTI | \ | |
1681 | FIF_CONTROL | \ | |
af6a3fc7 | 1682 | FIF_PSPOLL | \ |
8feceb67 VT |
1683 | FIF_OTHER_BSS | \ |
1684 | FIF_BCN_PRBRESP_PROMISC | \ | |
9c1d8e4a | 1685 | FIF_PROBE_REQ | \ |
8feceb67 | 1686 | FIF_FCSFAIL) |
c83be688 | 1687 | |
8feceb67 VT |
1688 | /* FIXME: sc->sc_full_reset ? */ |
1689 | static void ath9k_configure_filter(struct ieee80211_hw *hw, | |
1690 | unsigned int changed_flags, | |
1691 | unsigned int *total_flags, | |
3ac64bee | 1692 | u64 multicast) |
8feceb67 | 1693 | { |
bce048d7 JM |
1694 | struct ath_wiphy *aphy = hw->priv; |
1695 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 1696 | u32 rfilt; |
f078f209 | 1697 | |
8feceb67 VT |
1698 | changed_flags &= SUPPORTED_FILTERS; |
1699 | *total_flags &= SUPPORTED_FILTERS; | |
f078f209 | 1700 | |
b77f483f | 1701 | sc->rx.rxfilter = *total_flags; |
aa68aeaa | 1702 | ath9k_ps_wakeup(sc); |
8feceb67 VT |
1703 | rfilt = ath_calcrxfilter(sc); |
1704 | ath9k_hw_setrxfilter(sc->sc_ah, rfilt); | |
aa68aeaa | 1705 | ath9k_ps_restore(sc); |
f078f209 | 1706 | |
226afe68 JP |
1707 | ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG, |
1708 | "Set HW RX filter: 0x%x\n", rfilt); | |
8feceb67 | 1709 | } |
f078f209 | 1710 | |
4ca77860 JB |
1711 | static int ath9k_sta_add(struct ieee80211_hw *hw, |
1712 | struct ieee80211_vif *vif, | |
1713 | struct ieee80211_sta *sta) | |
8feceb67 | 1714 | { |
bce048d7 JM |
1715 | struct ath_wiphy *aphy = hw->priv; |
1716 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 1717 | |
4ca77860 JB |
1718 | ath_node_attach(sc, sta); |
1719 | ||
1720 | return 0; | |
1721 | } | |
1722 | ||
1723 | static int ath9k_sta_remove(struct ieee80211_hw *hw, | |
1724 | struct ieee80211_vif *vif, | |
1725 | struct ieee80211_sta *sta) | |
1726 | { | |
1727 | struct ath_wiphy *aphy = hw->priv; | |
1728 | struct ath_softc *sc = aphy->sc; | |
1729 | ||
1730 | ath_node_detach(sc, sta); | |
1731 | ||
1732 | return 0; | |
f078f209 LR |
1733 | } |
1734 | ||
141b38b6 | 1735 | static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
8feceb67 | 1736 | const struct ieee80211_tx_queue_params *params) |
f078f209 | 1737 | { |
bce048d7 JM |
1738 | struct ath_wiphy *aphy = hw->priv; |
1739 | struct ath_softc *sc = aphy->sc; | |
c46917bb | 1740 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
066dae93 | 1741 | struct ath_txq *txq; |
8feceb67 | 1742 | struct ath9k_tx_queue_info qi; |
066dae93 | 1743 | int ret = 0; |
f078f209 | 1744 | |
8feceb67 VT |
1745 | if (queue >= WME_NUM_AC) |
1746 | return 0; | |
f078f209 | 1747 | |
066dae93 FF |
1748 | txq = sc->tx.txq_map[queue]; |
1749 | ||
141b38b6 S |
1750 | mutex_lock(&sc->mutex); |
1751 | ||
1ffb0610 S |
1752 | memset(&qi, 0, sizeof(struct ath9k_tx_queue_info)); |
1753 | ||
8feceb67 VT |
1754 | qi.tqi_aifs = params->aifs; |
1755 | qi.tqi_cwmin = params->cw_min; | |
1756 | qi.tqi_cwmax = params->cw_max; | |
1757 | qi.tqi_burstTime = params->txop; | |
f078f209 | 1758 | |
226afe68 JP |
1759 | ath_dbg(common, ATH_DBG_CONFIG, |
1760 | "Configure tx [queue/halq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", | |
1761 | queue, txq->axq_qnum, params->aifs, params->cw_min, | |
1762 | params->cw_max, params->txop); | |
f078f209 | 1763 | |
066dae93 | 1764 | ret = ath_txq_update(sc, txq->axq_qnum, &qi); |
8feceb67 | 1765 | if (ret) |
3800276a | 1766 | ath_err(common, "TXQ Update failed\n"); |
f078f209 | 1767 | |
94db2936 | 1768 | if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) |
066dae93 | 1769 | if (queue == WME_AC_BE && !ret) |
94db2936 VN |
1770 | ath_beaconq_config(sc); |
1771 | ||
141b38b6 S |
1772 | mutex_unlock(&sc->mutex); |
1773 | ||
8feceb67 VT |
1774 | return ret; |
1775 | } | |
f078f209 | 1776 | |
8feceb67 VT |
1777 | static int ath9k_set_key(struct ieee80211_hw *hw, |
1778 | enum set_key_cmd cmd, | |
dc822b5d JB |
1779 | struct ieee80211_vif *vif, |
1780 | struct ieee80211_sta *sta, | |
8feceb67 VT |
1781 | struct ieee80211_key_conf *key) |
1782 | { | |
bce048d7 JM |
1783 | struct ath_wiphy *aphy = hw->priv; |
1784 | struct ath_softc *sc = aphy->sc; | |
c46917bb | 1785 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
8feceb67 | 1786 | int ret = 0; |
f078f209 | 1787 | |
b3bd89ce JM |
1788 | if (modparam_nohwcrypt) |
1789 | return -ENOSPC; | |
1790 | ||
141b38b6 | 1791 | mutex_lock(&sc->mutex); |
3cbb5dd7 | 1792 | ath9k_ps_wakeup(sc); |
226afe68 | 1793 | ath_dbg(common, ATH_DBG_CONFIG, "Set HW Key\n"); |
f078f209 | 1794 | |
8feceb67 VT |
1795 | switch (cmd) { |
1796 | case SET_KEY: | |
040e539e | 1797 | ret = ath_key_config(common, vif, sta, key); |
6ace2891 JM |
1798 | if (ret >= 0) { |
1799 | key->hw_key_idx = ret; | |
8feceb67 VT |
1800 | /* push IV and Michael MIC generation to stack */ |
1801 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
97359d12 | 1802 | if (key->cipher == WLAN_CIPHER_SUITE_TKIP) |
8feceb67 | 1803 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
97359d12 JB |
1804 | if (sc->sc_ah->sw_mgmt_crypto && |
1805 | key->cipher == WLAN_CIPHER_SUITE_CCMP) | |
0ced0e17 | 1806 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; |
6ace2891 | 1807 | ret = 0; |
8feceb67 VT |
1808 | } |
1809 | break; | |
1810 | case DISABLE_KEY: | |
040e539e | 1811 | ath_key_delete(common, key); |
8feceb67 VT |
1812 | break; |
1813 | default: | |
1814 | ret = -EINVAL; | |
1815 | } | |
f078f209 | 1816 | |
3cbb5dd7 | 1817 | ath9k_ps_restore(sc); |
141b38b6 S |
1818 | mutex_unlock(&sc->mutex); |
1819 | ||
8feceb67 VT |
1820 | return ret; |
1821 | } | |
f078f209 | 1822 | |
8feceb67 VT |
1823 | static void ath9k_bss_info_changed(struct ieee80211_hw *hw, |
1824 | struct ieee80211_vif *vif, | |
1825 | struct ieee80211_bss_conf *bss_conf, | |
1826 | u32 changed) | |
1827 | { | |
bce048d7 JM |
1828 | struct ath_wiphy *aphy = hw->priv; |
1829 | struct ath_softc *sc = aphy->sc; | |
2d0ddec5 | 1830 | struct ath_hw *ah = sc->sc_ah; |
1510718d | 1831 | struct ath_common *common = ath9k_hw_common(ah); |
2d0ddec5 | 1832 | struct ath_vif *avp = (void *)vif->drv_priv; |
0005baf4 | 1833 | int slottime; |
c6089ccc | 1834 | int error; |
f078f209 | 1835 | |
141b38b6 S |
1836 | mutex_lock(&sc->mutex); |
1837 | ||
c6089ccc S |
1838 | if (changed & BSS_CHANGED_BSSID) { |
1839 | /* Set BSSID */ | |
1840 | memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); | |
1841 | memcpy(avp->bssid, bss_conf->bssid, ETH_ALEN); | |
1510718d | 1842 | common->curaid = 0; |
f2b2143e | 1843 | ath9k_hw_write_associd(ah); |
2d0ddec5 | 1844 | |
c6089ccc S |
1845 | /* Set aggregation protection mode parameters */ |
1846 | sc->config.ath_aggr_prot = 0; | |
2d0ddec5 | 1847 | |
c6089ccc S |
1848 | /* Only legacy IBSS for now */ |
1849 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
1850 | ath_update_chainmask(sc, 0); | |
2d0ddec5 | 1851 | |
226afe68 JP |
1852 | ath_dbg(common, ATH_DBG_CONFIG, "BSSID: %pM aid: 0x%x\n", |
1853 | common->curbssid, common->curaid); | |
2d0ddec5 | 1854 | |
c6089ccc S |
1855 | /* need to reconfigure the beacon */ |
1856 | sc->sc_flags &= ~SC_OP_BEACONS ; | |
1857 | } | |
2d0ddec5 | 1858 | |
c6089ccc S |
1859 | /* Enable transmission of beacons (AP, IBSS, MESH) */ |
1860 | if ((changed & BSS_CHANGED_BEACON) || | |
1861 | ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon)) { | |
1862 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); | |
1863 | error = ath_beacon_alloc(aphy, vif); | |
1864 | if (!error) | |
1865 | ath_beacon_config(sc, vif); | |
0005baf4 FF |
1866 | } |
1867 | ||
1868 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
1869 | if (bss_conf->use_short_slot) | |
1870 | slottime = 9; | |
1871 | else | |
1872 | slottime = 20; | |
1873 | if (vif->type == NL80211_IFTYPE_AP) { | |
1874 | /* | |
1875 | * Defer update, so that connected stations can adjust | |
1876 | * their settings at the same time. | |
1877 | * See beacon.c for more details | |
1878 | */ | |
1879 | sc->beacon.slottime = slottime; | |
1880 | sc->beacon.updateslot = UPDATE; | |
1881 | } else { | |
1882 | ah->slottime = slottime; | |
1883 | ath9k_hw_init_global_settings(ah); | |
1884 | } | |
2d0ddec5 JB |
1885 | } |
1886 | ||
c6089ccc S |
1887 | /* Disable transmission of beacons */ |
1888 | if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) | |
1889 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); | |
2d0ddec5 | 1890 | |
c6089ccc S |
1891 | if (changed & BSS_CHANGED_BEACON_INT) { |
1892 | sc->beacon_interval = bss_conf->beacon_int; | |
1893 | /* | |
1894 | * In case of AP mode, the HW TSF has to be reset | |
1895 | * when the beacon interval changes. | |
1896 | */ | |
1897 | if (vif->type == NL80211_IFTYPE_AP) { | |
1898 | sc->sc_flags |= SC_OP_TSF_RESET; | |
1899 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); | |
2d0ddec5 JB |
1900 | error = ath_beacon_alloc(aphy, vif); |
1901 | if (!error) | |
1902 | ath_beacon_config(sc, vif); | |
c6089ccc S |
1903 | } else { |
1904 | ath_beacon_config(sc, vif); | |
2d0ddec5 JB |
1905 | } |
1906 | } | |
1907 | ||
8feceb67 | 1908 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
226afe68 JP |
1909 | ath_dbg(common, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", |
1910 | bss_conf->use_short_preamble); | |
8feceb67 VT |
1911 | if (bss_conf->use_short_preamble) |
1912 | sc->sc_flags |= SC_OP_PREAMBLE_SHORT; | |
1913 | else | |
1914 | sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; | |
1915 | } | |
f078f209 | 1916 | |
8feceb67 | 1917 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
226afe68 JP |
1918 | ath_dbg(common, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", |
1919 | bss_conf->use_cts_prot); | |
8feceb67 VT |
1920 | if (bss_conf->use_cts_prot && |
1921 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) | |
1922 | sc->sc_flags |= SC_OP_PROTECT_ENABLE; | |
1923 | else | |
1924 | sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; | |
1925 | } | |
f078f209 | 1926 | |
8feceb67 | 1927 | if (changed & BSS_CHANGED_ASSOC) { |
226afe68 | 1928 | ath_dbg(common, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", |
8feceb67 | 1929 | bss_conf->assoc); |
9fa23e17 | 1930 | ath9k_bss_assoc_info(sc, hw, vif, bss_conf); |
8feceb67 | 1931 | } |
141b38b6 S |
1932 | |
1933 | mutex_unlock(&sc->mutex); | |
8feceb67 | 1934 | } |
f078f209 | 1935 | |
8feceb67 VT |
1936 | static u64 ath9k_get_tsf(struct ieee80211_hw *hw) |
1937 | { | |
1938 | u64 tsf; | |
bce048d7 JM |
1939 | struct ath_wiphy *aphy = hw->priv; |
1940 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 1941 | |
141b38b6 S |
1942 | mutex_lock(&sc->mutex); |
1943 | tsf = ath9k_hw_gettsf64(sc->sc_ah); | |
1944 | mutex_unlock(&sc->mutex); | |
f078f209 | 1945 | |
8feceb67 VT |
1946 | return tsf; |
1947 | } | |
f078f209 | 1948 | |
3b5d665b AF |
1949 | static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
1950 | { | |
bce048d7 JM |
1951 | struct ath_wiphy *aphy = hw->priv; |
1952 | struct ath_softc *sc = aphy->sc; | |
3b5d665b | 1953 | |
141b38b6 S |
1954 | mutex_lock(&sc->mutex); |
1955 | ath9k_hw_settsf64(sc->sc_ah, tsf); | |
1956 | mutex_unlock(&sc->mutex); | |
3b5d665b AF |
1957 | } |
1958 | ||
8feceb67 VT |
1959 | static void ath9k_reset_tsf(struct ieee80211_hw *hw) |
1960 | { | |
bce048d7 JM |
1961 | struct ath_wiphy *aphy = hw->priv; |
1962 | struct ath_softc *sc = aphy->sc; | |
c83be688 | 1963 | |
141b38b6 | 1964 | mutex_lock(&sc->mutex); |
21526d57 LR |
1965 | |
1966 | ath9k_ps_wakeup(sc); | |
141b38b6 | 1967 | ath9k_hw_reset_tsf(sc->sc_ah); |
21526d57 LR |
1968 | ath9k_ps_restore(sc); |
1969 | ||
141b38b6 | 1970 | mutex_unlock(&sc->mutex); |
8feceb67 | 1971 | } |
f078f209 | 1972 | |
8feceb67 | 1973 | static int ath9k_ampdu_action(struct ieee80211_hw *hw, |
c951ad35 | 1974 | struct ieee80211_vif *vif, |
141b38b6 S |
1975 | enum ieee80211_ampdu_mlme_action action, |
1976 | struct ieee80211_sta *sta, | |
1977 | u16 tid, u16 *ssn) | |
8feceb67 | 1978 | { |
bce048d7 JM |
1979 | struct ath_wiphy *aphy = hw->priv; |
1980 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 1981 | int ret = 0; |
f078f209 | 1982 | |
85ad181e JB |
1983 | local_bh_disable(); |
1984 | ||
8feceb67 VT |
1985 | switch (action) { |
1986 | case IEEE80211_AMPDU_RX_START: | |
dca3edb8 S |
1987 | if (!(sc->sc_flags & SC_OP_RXAGGR)) |
1988 | ret = -ENOTSUPP; | |
8feceb67 VT |
1989 | break; |
1990 | case IEEE80211_AMPDU_RX_STOP: | |
8feceb67 VT |
1991 | break; |
1992 | case IEEE80211_AMPDU_TX_START: | |
71a3bf3e FF |
1993 | if (!(sc->sc_flags & SC_OP_TXAGGR)) |
1994 | return -EOPNOTSUPP; | |
1995 | ||
8b685ba9 | 1996 | ath9k_ps_wakeup(sc); |
231c3a1f FF |
1997 | ret = ath_tx_aggr_start(sc, sta, tid, ssn); |
1998 | if (!ret) | |
1999 | ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); | |
8b685ba9 | 2000 | ath9k_ps_restore(sc); |
8feceb67 VT |
2001 | break; |
2002 | case IEEE80211_AMPDU_TX_STOP: | |
8b685ba9 | 2003 | ath9k_ps_wakeup(sc); |
f83da965 | 2004 | ath_tx_aggr_stop(sc, sta, tid); |
c951ad35 | 2005 | ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
8b685ba9 | 2006 | ath9k_ps_restore(sc); |
8feceb67 | 2007 | break; |
b1720231 | 2008 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
8b685ba9 | 2009 | ath9k_ps_wakeup(sc); |
8469cdef | 2010 | ath_tx_aggr_resume(sc, sta, tid); |
8b685ba9 | 2011 | ath9k_ps_restore(sc); |
8469cdef | 2012 | break; |
8feceb67 | 2013 | default: |
3800276a | 2014 | ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n"); |
8feceb67 VT |
2015 | } |
2016 | ||
85ad181e JB |
2017 | local_bh_enable(); |
2018 | ||
8feceb67 | 2019 | return ret; |
f078f209 LR |
2020 | } |
2021 | ||
62dad5b0 BP |
2022 | static int ath9k_get_survey(struct ieee80211_hw *hw, int idx, |
2023 | struct survey_info *survey) | |
2024 | { | |
2025 | struct ath_wiphy *aphy = hw->priv; | |
2026 | struct ath_softc *sc = aphy->sc; | |
3430098a | 2027 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
39162dbe | 2028 | struct ieee80211_supported_band *sband; |
3430098a FF |
2029 | struct ieee80211_channel *chan; |
2030 | unsigned long flags; | |
2031 | int pos; | |
2032 | ||
2033 | spin_lock_irqsave(&common->cc_lock, flags); | |
2034 | if (idx == 0) | |
2035 | ath_update_survey_stats(sc); | |
39162dbe FF |
2036 | |
2037 | sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ]; | |
2038 | if (sband && idx >= sband->n_channels) { | |
2039 | idx -= sband->n_channels; | |
2040 | sband = NULL; | |
2041 | } | |
62dad5b0 | 2042 | |
39162dbe FF |
2043 | if (!sband) |
2044 | sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ]; | |
62dad5b0 | 2045 | |
3430098a FF |
2046 | if (!sband || idx >= sband->n_channels) { |
2047 | spin_unlock_irqrestore(&common->cc_lock, flags); | |
2048 | return -ENOENT; | |
4f1a5a4b | 2049 | } |
62dad5b0 | 2050 | |
3430098a FF |
2051 | chan = &sband->channels[idx]; |
2052 | pos = chan->hw_value; | |
2053 | memcpy(survey, &sc->survey[pos], sizeof(*survey)); | |
2054 | survey->channel = chan; | |
2055 | spin_unlock_irqrestore(&common->cc_lock, flags); | |
2056 | ||
62dad5b0 BP |
2057 | return 0; |
2058 | } | |
2059 | ||
0c98de65 S |
2060 | static void ath9k_sw_scan_start(struct ieee80211_hw *hw) |
2061 | { | |
bce048d7 JM |
2062 | struct ath_wiphy *aphy = hw->priv; |
2063 | struct ath_softc *sc = aphy->sc; | |
0c98de65 | 2064 | |
3d832611 | 2065 | mutex_lock(&sc->mutex); |
8089cc47 | 2066 | if (ath9k_wiphy_scanning(sc)) { |
8089cc47 | 2067 | /* |
30888338 LR |
2068 | * There is a race here in mac80211 but fixing it requires |
2069 | * we revisit how we handle the scan complete callback. | |
2070 | * After mac80211 fixes we will not have configured hardware | |
2071 | * to the home channel nor would we have configured the RX | |
2072 | * filter yet. | |
8089cc47 | 2073 | */ |
3d832611 | 2074 | mutex_unlock(&sc->mutex); |
8089cc47 JM |
2075 | return; |
2076 | } | |
2077 | ||
2078 | aphy->state = ATH_WIPHY_SCAN; | |
2079 | ath9k_wiphy_pause_all_forced(sc, aphy); | |
3d832611 | 2080 | mutex_unlock(&sc->mutex); |
0c98de65 S |
2081 | } |
2082 | ||
30888338 LR |
2083 | /* |
2084 | * XXX: this requires a revisit after the driver | |
2085 | * scan_complete gets moved to another place/removed in mac80211. | |
2086 | */ | |
0c98de65 S |
2087 | static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) |
2088 | { | |
bce048d7 JM |
2089 | struct ath_wiphy *aphy = hw->priv; |
2090 | struct ath_softc *sc = aphy->sc; | |
0c98de65 | 2091 | |
3d832611 | 2092 | mutex_lock(&sc->mutex); |
8089cc47 | 2093 | aphy->state = ATH_WIPHY_ACTIVE; |
3d832611 | 2094 | mutex_unlock(&sc->mutex); |
0c98de65 S |
2095 | } |
2096 | ||
e239d859 FF |
2097 | static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class) |
2098 | { | |
2099 | struct ath_wiphy *aphy = hw->priv; | |
2100 | struct ath_softc *sc = aphy->sc; | |
2101 | struct ath_hw *ah = sc->sc_ah; | |
2102 | ||
2103 | mutex_lock(&sc->mutex); | |
2104 | ah->coverage_class = coverage_class; | |
2105 | ath9k_hw_init_global_settings(ah); | |
2106 | mutex_unlock(&sc->mutex); | |
2107 | } | |
2108 | ||
6baff7f9 | 2109 | struct ieee80211_ops ath9k_ops = { |
8feceb67 VT |
2110 | .tx = ath9k_tx, |
2111 | .start = ath9k_start, | |
2112 | .stop = ath9k_stop, | |
2113 | .add_interface = ath9k_add_interface, | |
2114 | .remove_interface = ath9k_remove_interface, | |
2115 | .config = ath9k_config, | |
8feceb67 | 2116 | .configure_filter = ath9k_configure_filter, |
4ca77860 JB |
2117 | .sta_add = ath9k_sta_add, |
2118 | .sta_remove = ath9k_sta_remove, | |
8feceb67 | 2119 | .conf_tx = ath9k_conf_tx, |
8feceb67 | 2120 | .bss_info_changed = ath9k_bss_info_changed, |
8feceb67 | 2121 | .set_key = ath9k_set_key, |
8feceb67 | 2122 | .get_tsf = ath9k_get_tsf, |
3b5d665b | 2123 | .set_tsf = ath9k_set_tsf, |
8feceb67 | 2124 | .reset_tsf = ath9k_reset_tsf, |
4233df6b | 2125 | .ampdu_action = ath9k_ampdu_action, |
62dad5b0 | 2126 | .get_survey = ath9k_get_survey, |
0c98de65 S |
2127 | .sw_scan_start = ath9k_sw_scan_start, |
2128 | .sw_scan_complete = ath9k_sw_scan_complete, | |
3b319aae | 2129 | .rfkill_poll = ath9k_rfkill_poll_state, |
e239d859 | 2130 | .set_coverage_class = ath9k_set_coverage_class, |
8feceb67 | 2131 | }; |