blob: cfec2ad664d8c2d62c1784ceec833a3986d30b4d [file] [log] [blame]
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001/*
Sujithcee075a2009-03-13 09:07:23 +05302 * Copyright (c) 2008-2009 Atheros Communications Inc.
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07003 *
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
Luis R. Rodriguezf078f202008-08-04 00:16:41 -070017#include <linux/nl80211.h>
Sujith394cf0a2009-02-09 13:26:54 +053018#include "ath9k.h"
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -070019#include "btcoex.h"
Luis R. Rodriguezf078f202008-08-04 00:16:41 -070020
Sujithff37e332008-11-24 12:07:55 +053021static void ath_update_txpow(struct ath_softc *sc)
22{
Sujithcbe61d8a2009-02-09 13:27:12 +053023 struct ath_hw *ah = sc->sc_ah;
Sujithff37e332008-11-24 12:07:55 +053024
Sujith17d79042009-02-09 13:27:03 +053025 if (sc->curtxpow != sc->config.txpowlimit) {
Felix Fietkaude40f312010-10-20 03:08:53 +020026 ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit, false);
Sujithff37e332008-11-24 12:07:55 +053027 /* read back in case value is clamped */
Felix Fietkau9cc32712010-06-12 17:22:29 +020028 sc->curtxpow = ath9k_hw_regulatory(ah)->power_limit;
Sujithff37e332008-11-24 12:07:55 +053029 }
30}
31
32static 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
Vasanthakumar Thiagarajan82880a72009-06-13 14:50:24 +053067static 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
Sujith55624202010-01-08 10:36:02 +053080bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode)
Luis R. Rodriguez8c77a562009-09-09 21:02:34 -070081{
82 unsigned long flags;
83 bool ret;
84
Luis R. Rodriguez9ecdef42009-09-09 21:10:09 -070085 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);
Luis R. Rodriguez8c77a562009-09-09 21:02:34 -070088
89 return ret;
90}
91
Luis R. Rodrigueza91d75a2009-09-09 20:29:18 -070092void ath9k_ps_wakeup(struct ath_softc *sc)
93{
Felix Fietkau898c9142010-10-12 14:02:53 +020094 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
Luis R. Rodrigueza91d75a2009-09-09 20:29:18 -070095 unsigned long flags;
96
97 spin_lock_irqsave(&sc->sc_pm_lock, flags);
98 if (++sc->ps_usecount != 1)
99 goto unlock;
100
Luis R. Rodriguez9ecdef42009-09-09 21:10:09 -0700101 ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE);
Luis R. Rodrigueza91d75a2009-09-09 20:29:18 -0700102
Felix Fietkau898c9142010-10-12 14:02:53 +0200103 /*
104 * While the hardware is asleep, the cycle counters contain no
105 * useful data. Better clear them now so that they don't mess up
106 * survey data results.
107 */
108 spin_lock(&common->cc_lock);
109 ath_hw_cycle_counters_update(common);
110 memset(&common->cc_survey, 0, sizeof(common->cc_survey));
111 spin_unlock(&common->cc_lock);
112
Luis R. Rodrigueza91d75a2009-09-09 20:29:18 -0700113 unlock:
114 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
115}
116
117void ath9k_ps_restore(struct ath_softc *sc)
118{
Felix Fietkau898c9142010-10-12 14:02:53 +0200119 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
Luis R. Rodrigueza91d75a2009-09-09 20:29:18 -0700120 unsigned long flags;
121
122 spin_lock_irqsave(&sc->sc_pm_lock, flags);
123 if (--sc->ps_usecount != 0)
124 goto unlock;
125
Felix Fietkau898c9142010-10-12 14:02:53 +0200126 spin_lock(&common->cc_lock);
127 ath_hw_cycle_counters_update(common);
128 spin_unlock(&common->cc_lock);
129
Vivek Natarajan1dbfd9d2010-01-29 16:56:51 +0530130 if (sc->ps_idle)
131 ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
132 else if (sc->ps_enabled &&
133 !(sc->ps_flags & (PS_WAIT_FOR_BEACON |
Sujith1b04b932010-01-08 10:36:05 +0530134 PS_WAIT_FOR_CAB |
135 PS_WAIT_FOR_PSPOLL_DATA |
136 PS_WAIT_FOR_TX_ACK)))
Luis R. Rodriguez9ecdef42009-09-09 21:10:09 -0700137 ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP);
Luis R. Rodrigueza91d75a2009-09-09 20:29:18 -0700138
139 unlock:
140 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
141}
142
Felix Fietkau5ee08652010-07-31 00:11:59 +0200143static void ath_start_ani(struct ath_common *common)
144{
145 struct ath_hw *ah = common->ah;
146 unsigned long timestamp = jiffies_to_msecs(jiffies);
147 struct ath_softc *sc = (struct ath_softc *) common->priv;
148
149 if (!(sc->sc_flags & SC_OP_ANI_RUN))
150 return;
151
152 if (sc->sc_flags & SC_OP_OFFCHANNEL)
153 return;
154
155 common->ani.longcal_timer = timestamp;
156 common->ani.shortcal_timer = timestamp;
157 common->ani.checkani_timer = timestamp;
158
159 mod_timer(&common->ani.timer,
160 jiffies +
161 msecs_to_jiffies((u32)ah->config.ani_poll_interval));
162}
163
Felix Fietkau34300982010-10-10 18:21:52 +0200164static void ath_update_survey_nf(struct ath_softc *sc, int channel)
165{
166 struct ath_hw *ah = sc->sc_ah;
167 struct ath9k_channel *chan = &ah->channels[channel];
168 struct survey_info *survey = &sc->survey[channel];
169
170 if (chan->noisefloor) {
171 survey->filled |= SURVEY_INFO_NOISE_DBM;
172 survey->noise = chan->noisefloor;
173 }
174}
175
176static void ath_update_survey_stats(struct ath_softc *sc)
177{
178 struct ath_hw *ah = sc->sc_ah;
179 struct ath_common *common = ath9k_hw_common(ah);
180 int pos = ah->curchan - &ah->channels[0];
181 struct survey_info *survey = &sc->survey[pos];
182 struct ath_cycle_counters *cc = &common->cc_survey;
183 unsigned int div = common->clockrate * 1000;
184
Felix Fietkau08457352010-10-20 15:59:28 +0200185 if (!ah->curchan)
186 return;
187
Felix Fietkau898c9142010-10-12 14:02:53 +0200188 if (ah->power_mode == ATH9K_PM_AWAKE)
189 ath_hw_cycle_counters_update(common);
Felix Fietkau34300982010-10-10 18:21:52 +0200190
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 }
201 memset(cc, 0, sizeof(*cc));
202
203 ath_update_survey_nf(sc, pos);
204}
205
Sujithff37e332008-11-24 12:07:55 +0530206/*
207 * Set/change channels. If the channel is really being changed, it's done
208 * by reseting the chip. To accomplish this we must first cleanup any pending
209 * DMA, then restart stuff.
210*/
Jouni Malinen0e2dedf2009-03-03 19:23:32 +0200211int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
212 struct ath9k_channel *hchan)
Sujithff37e332008-11-24 12:07:55 +0530213{
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200214 struct ath_wiphy *aphy = hw->priv;
Sujithcbe61d8a2009-02-09 13:27:12 +0530215 struct ath_hw *ah = sc->sc_ah;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700216 struct ath_common *common = ath9k_hw_common(ah);
Luis R. Rodriguez25c56ee2009-09-13 23:04:44 -0700217 struct ieee80211_conf *conf = &common->hw->conf;
Sujithff37e332008-11-24 12:07:55 +0530218 bool fastcc = true, stopped;
Luis R. Rodriguezae8d2852008-12-23 15:58:40 -0800219 struct ieee80211_channel *channel = hw->conf.channel;
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200220 struct ath9k_hw_cal_data *caldata = NULL;
Luis R. Rodriguezae8d2852008-12-23 15:58:40 -0800221 int r;
Sujithff37e332008-11-24 12:07:55 +0530222
223 if (sc->sc_flags & SC_OP_INVALID)
224 return -EIO;
225
Felix Fietkau5ee08652010-07-31 00:11:59 +0200226 del_timer_sync(&common->ani.timer);
227 cancel_work_sync(&sc->paprd_work);
228 cancel_work_sync(&sc->hw_check_work);
229 cancel_delayed_work_sync(&sc->tx_complete_work);
230
Vivek Natarajan3cbb5dd2009-01-20 11:17:08 +0530231 ath9k_ps_wakeup(sc);
232
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -0700233 spin_lock_bh(&sc->sc_pcu_lock);
234
Luis R. Rodriguezc0d7c7a2008-12-23 15:58:50 -0800235 /*
236 * This is only performed if the channel settings have
237 * actually changed.
238 *
239 * To switch channels clear any pending DMA operations;
240 * wait long enough for the RX fifo to drain, reset the
241 * hardware at the new frequency, and then re-enable
242 * the relevant bits of the h/w.
243 */
Felix Fietkau4df30712010-11-08 20:54:47 +0100244 ath9k_hw_disable_interrupts(ah);
Sujith043a0402009-01-16 21:38:47 +0530245 ath_drain_all_txq(sc, false);
Luis R. Rodriguez5e848f72010-10-20 16:07:06 -0700246
Luis R. Rodriguezc0d7c7a2008-12-23 15:58:50 -0800247 stopped = ath_stoprecv(sc);
Sujithff37e332008-11-24 12:07:55 +0530248
Luis R. Rodriguezc0d7c7a2008-12-23 15:58:50 -0800249 /* XXX: do not flush receive queue here. We don't want
250 * to flush data frames already in queue because of
251 * changing channel. */
Sujithff37e332008-11-24 12:07:55 +0530252
Felix Fietkau5ee08652010-07-31 00:11:59 +0200253 if (!stopped || !(sc->sc_flags & SC_OP_OFFCHANNEL))
Luis R. Rodriguezc0d7c7a2008-12-23 15:58:50 -0800254 fastcc = false;
Sujithff37e332008-11-24 12:07:55 +0530255
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200256 if (!(sc->sc_flags & SC_OP_OFFCHANNEL))
257 caldata = &aphy->caldata;
258
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700259 ath_print(common, ATH_DBG_CONFIG,
Luis R. Rodriguez1e51b2f2010-07-29 22:56:22 -0400260 "(%u MHz) -> (%u MHz), conf_is_ht40: %d fastcc: %d\n",
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700261 sc->sc_ah->curchan->channel,
Luis R. Rodriguez1e51b2f2010-07-29 22:56:22 -0400262 channel->center_freq, conf_is_ht40(conf),
263 fastcc);
Sujith99405f92008-11-24 12:08:35 +0530264
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200265 r = ath9k_hw_reset(ah, hchan, caldata, fastcc);
Luis R. Rodriguezc0d7c7a2008-12-23 15:58:50 -0800266 if (r) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700267 ath_print(common, ATH_DBG_FATAL,
Pavel Roskinf643e512010-01-29 17:22:12 -0500268 "Unable to reset channel (%u MHz), "
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700269 "reset status %d\n",
270 channel->center_freq, r);
Gabor Juhos39892792009-06-15 17:49:09 +0200271 goto ps_restore;
Sujithff37e332008-11-24 12:07:55 +0530272 }
Luis R. Rodriguezc0d7c7a2008-12-23 15:58:50 -0800273
Luis R. Rodriguezc0d7c7a2008-12-23 15:58:50 -0800274 if (ath_startrecv(sc) != 0) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700275 ath_print(common, ATH_DBG_FATAL,
276 "Unable to restart recv logic\n");
Gabor Juhos39892792009-06-15 17:49:09 +0200277 r = -EIO;
278 goto ps_restore;
Luis R. Rodriguezc0d7c7a2008-12-23 15:58:50 -0800279 }
280
Luis R. Rodriguezc0d7c7a2008-12-23 15:58:50 -0800281 ath_update_txpow(sc);
Pavel Roskin30691682010-03-31 18:05:31 -0400282 ath9k_hw_set_interrupts(ah, ah->imask);
Gabor Juhos39892792009-06-15 17:49:09 +0200283
Luis R. Rodriguez48a6a462010-09-16 15:12:28 -0400284 if (!(sc->sc_flags & (SC_OP_OFFCHANNEL))) {
Luis R. Rodriguez52b8ac92010-09-16 15:12:27 -0400285 ath_beacon_config(sc, NULL);
Luis R. Rodriguez48a6a462010-09-16 15:12:28 -0400286 ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
287 ath_start_ani(common);
288 }
Luis R. Rodriguez52b8ac92010-09-16 15:12:27 -0400289
Gabor Juhos39892792009-06-15 17:49:09 +0200290 ps_restore:
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -0700291 spin_unlock_bh(&sc->sc_pcu_lock);
292
Vivek Natarajan3cbb5dd2009-01-20 11:17:08 +0530293 ath9k_ps_restore(sc);
Gabor Juhos39892792009-06-15 17:49:09 +0200294 return r;
Sujithff37e332008-11-24 12:07:55 +0530295}
296
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400297static void ath_paprd_activate(struct ath_softc *sc)
298{
299 struct ath_hw *ah = sc->sc_ah;
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200300 struct ath9k_hw_cal_data *caldata = ah->caldata;
Vasanthakumar Thiagarajan90945372010-09-20 22:54:46 -0700301 struct ath_common *common = ath9k_hw_common(ah);
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400302 int chain;
303
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200304 if (!caldata || !caldata->paprd_done)
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400305 return;
306
307 ath9k_ps_wakeup(sc);
Felix Fietkauddfef7922010-07-30 21:02:11 +0200308 ar9003_paprd_enable(ah, false);
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400309 for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
Vasanthakumar Thiagarajan90945372010-09-20 22:54:46 -0700310 if (!(common->tx_chainmask & BIT(chain)))
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400311 continue;
312
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200313 ar9003_paprd_populate_single_table(ah, caldata, chain);
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400314 }
315
316 ar9003_paprd_enable(ah, true);
317 ath9k_ps_restore(sc);
318}
319
320void ath_paprd_calibrate(struct work_struct *work)
321{
322 struct ath_softc *sc = container_of(work, struct ath_softc, paprd_work);
323 struct ieee80211_hw *hw = sc->hw;
324 struct ath_hw *ah = sc->sc_ah;
325 struct ieee80211_hdr *hdr;
326 struct sk_buff *skb = NULL;
327 struct ieee80211_tx_info *tx_info;
328 int band = hw->conf.channel->band;
329 struct ieee80211_supported_band *sband = &sc->sbands[band];
330 struct ath_tx_control txctl;
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200331 struct ath9k_hw_cal_data *caldata = ah->caldata;
Vasanthakumar Thiagarajan90945372010-09-20 22:54:46 -0700332 struct ath_common *common = ath9k_hw_common(ah);
Felix Fietkau066dae92010-11-07 14:59:39 +0100333 int ftype;
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400334 int chain_ok = 0;
335 int chain;
336 int len = 1800;
337 int time_left;
338 int i;
339
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200340 if (!caldata)
341 return;
342
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400343 skb = alloc_skb(len, GFP_KERNEL);
344 if (!skb)
345 return;
346
347 tx_info = IEEE80211_SKB_CB(skb);
348
349 skb_put(skb, len);
350 memset(skb->data, 0, len);
351 hdr = (struct ieee80211_hdr *)skb->data;
352 ftype = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC;
353 hdr->frame_control = cpu_to_le16(ftype);
John W. Linvillea3d3da12010-07-20 13:15:31 -0400354 hdr->duration_id = cpu_to_le16(10);
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400355 memcpy(hdr->addr1, hw->wiphy->perm_addr, ETH_ALEN);
356 memcpy(hdr->addr2, hw->wiphy->perm_addr, ETH_ALEN);
357 memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN);
358
359 memset(&txctl, 0, sizeof(txctl));
Felix Fietkau066dae92010-11-07 14:59:39 +0100360 txctl.txq = sc->tx.txq_map[WME_AC_BE];
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400361
Vasanthakumar Thiagarajan47399f12010-06-24 04:09:27 -0700362 ath9k_ps_wakeup(sc);
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400363 ar9003_paprd_init_table(ah);
364 for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
Vasanthakumar Thiagarajan90945372010-09-20 22:54:46 -0700365 if (!(common->tx_chainmask & BIT(chain)))
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400366 continue;
367
368 chain_ok = 0;
369 memset(tx_info, 0, sizeof(*tx_info));
370 tx_info->band = band;
371
372 for (i = 0; i < 4; i++) {
373 tx_info->control.rates[i].idx = sband->n_bitrates - 1;
374 tx_info->control.rates[i].count = 6;
375 }
376
377 init_completion(&sc->paprd_complete);
Felix Fietkau82259b72010-11-14 15:20:04 +0100378 sc->paprd_pending = true;
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400379 ar9003_paprd_setup_gain_table(ah, chain);
380 txctl.paprd = BIT(chain);
381 if (ath_tx_start(hw, skb, &txctl) != 0)
382 break;
383
384 time_left = wait_for_completion_timeout(&sc->paprd_complete,
Vasanthakumar Thiagarajanca369eb2010-06-24 02:42:44 -0700385 msecs_to_jiffies(ATH_PAPRD_TIMEOUT));
Felix Fietkau82259b72010-11-14 15:20:04 +0100386 sc->paprd_pending = false;
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400387 if (!time_left) {
388 ath_print(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
389 "Timeout waiting for paprd training on "
390 "TX chain %d\n",
391 chain);
Vasanthakumar Thiagarajanca369eb2010-06-24 02:42:44 -0700392 goto fail_paprd;
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400393 }
394
395 if (!ar9003_paprd_is_done(ah))
396 break;
397
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200398 if (ar9003_paprd_create_curve(ah, caldata, chain) != 0)
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400399 break;
400
401 chain_ok = 1;
402 }
403 kfree_skb(skb);
404
405 if (chain_ok) {
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200406 caldata->paprd_done = true;
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400407 ath_paprd_activate(sc);
408 }
409
Vasanthakumar Thiagarajanca369eb2010-06-24 02:42:44 -0700410fail_paprd:
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400411 ath9k_ps_restore(sc);
412}
413
Sujithff37e332008-11-24 12:07:55 +0530414/*
415 * This routine performs the periodic noise floor calibration function
416 * that is used to adjust and optimize the chip performance. This
417 * takes environmental changes (location, temperature) into account.
418 * When the task is complete, it reschedules itself depending on the
419 * appropriate interval that was calculated.
420 */
Sujith55624202010-01-08 10:36:02 +0530421void ath_ani_calibrate(unsigned long data)
Sujithff37e332008-11-24 12:07:55 +0530422{
Sujith20977d32009-02-20 15:13:28 +0530423 struct ath_softc *sc = (struct ath_softc *)data;
424 struct ath_hw *ah = sc->sc_ah;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700425 struct ath_common *common = ath9k_hw_common(ah);
Sujithff37e332008-11-24 12:07:55 +0530426 bool longcal = false;
427 bool shortcal = false;
428 bool aniflag = false;
429 unsigned int timestamp = jiffies_to_msecs(jiffies);
Felix Fietkau60444742010-08-02 15:53:15 +0200430 u32 cal_interval, short_cal_interval, long_cal_interval;
Felix Fietkaub5bfc562010-10-08 22:13:53 +0200431 unsigned long flags;
Felix Fietkau60444742010-08-02 15:53:15 +0200432
433 if (ah->caldata && ah->caldata->nfcal_interference)
434 long_cal_interval = ATH_LONG_CALINTERVAL_INT;
435 else
436 long_cal_interval = ATH_LONG_CALINTERVAL;
Sujithff37e332008-11-24 12:07:55 +0530437
Sujith20977d32009-02-20 15:13:28 +0530438 short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ?
439 ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL;
Sujithff37e332008-11-24 12:07:55 +0530440
Jouni Malinen1ffc1c62009-05-19 17:01:39 +0300441 /* Only calibrate if awake */
442 if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE)
443 goto set_timer;
444
445 ath9k_ps_wakeup(sc);
446
Sujithff37e332008-11-24 12:07:55 +0530447 /* Long calibration runs independently of short calibration. */
Felix Fietkau60444742010-08-02 15:53:15 +0200448 if ((timestamp - common->ani.longcal_timer) >= long_cal_interval) {
Sujithff37e332008-11-24 12:07:55 +0530449 longcal = true;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700450 ath_print(common, ATH_DBG_ANI, "longcal @%lu\n", jiffies);
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -0800451 common->ani.longcal_timer = timestamp;
Sujithff37e332008-11-24 12:07:55 +0530452 }
453
Sujith17d79042009-02-09 13:27:03 +0530454 /* Short calibration applies only while caldone is false */
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -0800455 if (!common->ani.caldone) {
456 if ((timestamp - common->ani.shortcal_timer) >= short_cal_interval) {
Sujithff37e332008-11-24 12:07:55 +0530457 shortcal = true;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700458 ath_print(common, ATH_DBG_ANI,
459 "shortcal @%lu\n", jiffies);
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -0800460 common->ani.shortcal_timer = timestamp;
461 common->ani.resetcal_timer = timestamp;
Sujithff37e332008-11-24 12:07:55 +0530462 }
463 } else {
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -0800464 if ((timestamp - common->ani.resetcal_timer) >=
Sujithff37e332008-11-24 12:07:55 +0530465 ATH_RESTART_CALINTERVAL) {
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -0800466 common->ani.caldone = ath9k_hw_reset_calvalid(ah);
467 if (common->ani.caldone)
468 common->ani.resetcal_timer = timestamp;
Sujithff37e332008-11-24 12:07:55 +0530469 }
470 }
471
472 /* Verify whether we must check ANI */
Luis R. Rodrigueze36b27a2010-06-12 00:33:45 -0400473 if ((timestamp - common->ani.checkani_timer) >=
474 ah->config.ani_poll_interval) {
Sujithff37e332008-11-24 12:07:55 +0530475 aniflag = true;
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -0800476 common->ani.checkani_timer = timestamp;
Sujithff37e332008-11-24 12:07:55 +0530477 }
478
479 /* Skip all processing if there's nothing to do. */
480 if (longcal || shortcal || aniflag) {
481 /* Call ANI routine if necessary */
Felix Fietkaub5bfc562010-10-08 22:13:53 +0200482 if (aniflag) {
483 spin_lock_irqsave(&common->cc_lock, flags);
Vasanthakumar Thiagarajan22e66a42009-08-19 16:23:40 +0530484 ath9k_hw_ani_monitor(ah, ah->curchan);
Felix Fietkau34300982010-10-10 18:21:52 +0200485 ath_update_survey_stats(sc);
Felix Fietkaub5bfc562010-10-08 22:13:53 +0200486 spin_unlock_irqrestore(&common->cc_lock, flags);
487 }
Sujithff37e332008-11-24 12:07:55 +0530488
489 /* Perform calibration if necessary */
490 if (longcal || shortcal) {
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -0800491 common->ani.caldone =
Luis R. Rodriguez43c27612009-09-13 21:07:07 -0700492 ath9k_hw_calibrate(ah,
493 ah->curchan,
494 common->rx_chainmask,
495 longcal);
Sujithff37e332008-11-24 12:07:55 +0530496 }
497 }
498
Jouni Malinen1ffc1c62009-05-19 17:01:39 +0300499 ath9k_ps_restore(sc);
500
Sujith20977d32009-02-20 15:13:28 +0530501set_timer:
Sujithff37e332008-11-24 12:07:55 +0530502 /*
503 * Set timer interval based on previous results.
504 * The interval must be the shortest necessary to satisfy ANI,
505 * short calibration and long calibration.
506 */
Sujithaac92072008-12-02 18:37:54 +0530507 cal_interval = ATH_LONG_CALINTERVAL;
Sujith2660b812009-02-09 13:27:26 +0530508 if (sc->sc_ah->config.enable_ani)
Luis R. Rodrigueze36b27a2010-06-12 00:33:45 -0400509 cal_interval = min(cal_interval,
510 (u32)ah->config.ani_poll_interval);
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -0800511 if (!common->ani.caldone)
Sujith20977d32009-02-20 15:13:28 +0530512 cal_interval = min(cal_interval, (u32)short_cal_interval);
Sujithff37e332008-11-24 12:07:55 +0530513
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -0800514 mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval));
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200515 if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && ah->caldata) {
516 if (!ah->caldata->paprd_done)
Felix Fietkau9f42c2b2010-06-12 00:34:01 -0400517 ieee80211_queue_work(sc->hw, &sc->paprd_work);
518 else
519 ath_paprd_activate(sc);
520 }
Sujithff37e332008-11-24 12:07:55 +0530521}
522
523/*
524 * Update tx/rx chainmask. For legacy association,
525 * hard code chainmask to 1x1, for 11n association, use
Vasanthakumar Thiagarajanc97c92d2009-01-02 15:35:46 +0530526 * the chainmask configuration, for bt coexistence, use
527 * the chainmask configuration even in legacy mode.
Sujithff37e332008-11-24 12:07:55 +0530528 */
Jouni Malinen0e2dedf2009-03-03 19:23:32 +0200529void ath_update_chainmask(struct ath_softc *sc, int is_ht)
Sujithff37e332008-11-24 12:07:55 +0530530{
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -0700531 struct ath_hw *ah = sc->sc_ah;
Luis R. Rodriguez43c27612009-09-13 21:07:07 -0700532 struct ath_common *common = ath9k_hw_common(ah);
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -0700533
Felix Fietkau5ee08652010-07-31 00:11:59 +0200534 if ((sc->sc_flags & SC_OP_OFFCHANNEL) || is_ht ||
Luis R. Rodriguez766ec4a2009-09-09 14:52:02 -0700535 (ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE)) {
Luis R. Rodriguez43c27612009-09-13 21:07:07 -0700536 common->tx_chainmask = ah->caps.tx_chainmask;
537 common->rx_chainmask = ah->caps.rx_chainmask;
Sujithff37e332008-11-24 12:07:55 +0530538 } else {
Luis R. Rodriguez43c27612009-09-13 21:07:07 -0700539 common->tx_chainmask = 1;
540 common->rx_chainmask = 1;
Sujithff37e332008-11-24 12:07:55 +0530541 }
542
Luis R. Rodriguez43c27612009-09-13 21:07:07 -0700543 ath_print(common, ATH_DBG_CONFIG,
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700544 "tx chmask: %d, rx chmask: %d\n",
Luis R. Rodriguez43c27612009-09-13 21:07:07 -0700545 common->tx_chainmask,
546 common->rx_chainmask);
Sujithff37e332008-11-24 12:07:55 +0530547}
548
549static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta)
550{
551 struct ath_node *an;
552
553 an = (struct ath_node *)sta->drv_priv;
554
Sujith87792ef2009-03-30 15:28:48 +0530555 if (sc->sc_flags & SC_OP_TXAGGR) {
Sujithff37e332008-11-24 12:07:55 +0530556 ath_tx_node_init(sc, an);
Sujith9e98ac62009-07-23 15:32:34 +0530557 an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
Sujith87792ef2009-03-30 15:28:48 +0530558 sta->ht_cap.ampdu_factor);
559 an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density);
560 }
Sujithff37e332008-11-24 12:07:55 +0530561}
562
563static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta)
564{
565 struct ath_node *an = (struct ath_node *)sta->drv_priv;
566
567 if (sc->sc_flags & SC_OP_TXAGGR)
568 ath_tx_node_cleanup(sc, an);
569}
570
Felix Fietkau347809f2010-07-02 00:09:52 +0200571void ath_hw_check(struct work_struct *work)
572{
573 struct ath_softc *sc = container_of(work, struct ath_softc, hw_check_work);
574 int i;
575
576 ath9k_ps_wakeup(sc);
577
578 for (i = 0; i < 3; i++) {
579 if (ath9k_hw_check_alive(sc->sc_ah))
580 goto out;
581
582 msleep(1);
583 }
Felix Fietkaufac6b6a2010-10-23 17:45:38 +0200584 ath_reset(sc, true);
Felix Fietkau347809f2010-07-02 00:09:52 +0200585
586out:
587 ath9k_ps_restore(sc);
588}
589
Sujith55624202010-01-08 10:36:02 +0530590void ath9k_tasklet(unsigned long data)
Sujithff37e332008-11-24 12:07:55 +0530591{
592 struct ath_softc *sc = (struct ath_softc *)data;
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -0700593 struct ath_hw *ah = sc->sc_ah;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700594 struct ath_common *common = ath9k_hw_common(ah);
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -0700595
Sujith17d79042009-02-09 13:27:03 +0530596 u32 status = sc->intrstatus;
Felix Fietkaub5c804752010-04-15 17:38:48 -0400597 u32 rxmask;
Sujithff37e332008-11-24 12:07:55 +0530598
Vasanthakumar Thiagarajan153e0802009-05-15 02:47:16 -0400599 ath9k_ps_wakeup(sc);
600
Felix Fietkau347809f2010-07-02 00:09:52 +0200601 if (status & ATH9K_INT_FATAL) {
Felix Fietkaufac6b6a2010-10-23 17:45:38 +0200602 ath_reset(sc, true);
Vasanthakumar Thiagarajan153e0802009-05-15 02:47:16 -0400603 ath9k_ps_restore(sc);
Sujithff37e332008-11-24 12:07:55 +0530604 return;
Sujithff37e332008-11-24 12:07:55 +0530605 }
606
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -0700607 spin_lock_bh(&sc->sc_pcu_lock);
608
Felix Fietkau347809f2010-07-02 00:09:52 +0200609 if (!ath9k_hw_check_alive(ah))
610 ieee80211_queue_work(sc->hw, &sc->hw_check_work);
611
Felix Fietkaub5c804752010-04-15 17:38:48 -0400612 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
613 rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL |
614 ATH9K_INT_RXORN);
615 else
616 rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
617
618 if (status & rxmask) {
Felix Fietkaub5c804752010-04-15 17:38:48 -0400619 /* Check for high priority Rx first */
620 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
621 (status & ATH9K_INT_RXHP))
622 ath_rx_tasklet(sc, 0, true);
623
624 ath_rx_tasklet(sc, 0, false);
Sujith063d8be2009-03-30 15:28:49 +0530625 }
626
Vasanthakumar Thiagarajane5003242010-04-15 17:39:36 -0400627 if (status & ATH9K_INT_TX) {
628 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
629 ath_tx_edma_tasklet(sc);
630 else
631 ath_tx_tasklet(sc);
632 }
Sujith063d8be2009-03-30 15:28:49 +0530633
Gabor Juhos96148322009-07-24 17:27:21 +0200634 if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) {
Jouni Malinen54ce8462009-05-19 17:01:40 +0300635 /*
636 * TSF sync does not look correct; remain awake to sync with
637 * the next Beacon.
638 */
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700639 ath_print(common, ATH_DBG_PS,
640 "TSFOOR - Sync with next Beacon\n");
Sujith1b04b932010-01-08 10:36:05 +0530641 sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC;
Jouni Malinen54ce8462009-05-19 17:01:40 +0300642 }
643
Luis R. Rodriguez766ec4a2009-09-09 14:52:02 -0700644 if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
Vasanthakumar Thiagarajanebb8e1d2009-09-01 17:46:32 +0530645 if (status & ATH9K_INT_GENTIMER)
646 ath_gen_timer_isr(sc->sc_ah);
647
Sujithff37e332008-11-24 12:07:55 +0530648 /* re-enable hardware interrupt */
Felix Fietkau4df30712010-11-08 20:54:47 +0100649 ath9k_hw_enable_interrupts(ah);
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -0700650
651 spin_unlock_bh(&sc->sc_pcu_lock);
Vasanthakumar Thiagarajan153e0802009-05-15 02:47:16 -0400652 ath9k_ps_restore(sc);
Sujithff37e332008-11-24 12:07:55 +0530653}
654
Gabor Juhos6baff7f2009-01-14 20:17:06 +0100655irqreturn_t ath_isr(int irq, void *dev)
Sujithff37e332008-11-24 12:07:55 +0530656{
Sujith063d8be2009-03-30 15:28:49 +0530657#define SCHED_INTR ( \
658 ATH9K_INT_FATAL | \
659 ATH9K_INT_RXORN | \
660 ATH9K_INT_RXEOL | \
661 ATH9K_INT_RX | \
Felix Fietkaub5c804752010-04-15 17:38:48 -0400662 ATH9K_INT_RXLP | \
663 ATH9K_INT_RXHP | \
Sujith063d8be2009-03-30 15:28:49 +0530664 ATH9K_INT_TX | \
665 ATH9K_INT_BMISS | \
666 ATH9K_INT_CST | \
Vasanthakumar Thiagarajanebb8e1d2009-09-01 17:46:32 +0530667 ATH9K_INT_TSFOOR | \
668 ATH9K_INT_GENTIMER)
Sujith063d8be2009-03-30 15:28:49 +0530669
Sujithff37e332008-11-24 12:07:55 +0530670 struct ath_softc *sc = dev;
Sujithcbe61d8a2009-02-09 13:27:12 +0530671 struct ath_hw *ah = sc->sc_ah;
Felix Fietkaub5bfc562010-10-08 22:13:53 +0200672 struct ath_common *common = ath9k_hw_common(ah);
Sujithff37e332008-11-24 12:07:55 +0530673 enum ath9k_int status;
674 bool sched = false;
675
Sujith063d8be2009-03-30 15:28:49 +0530676 /*
677 * The hardware is not ready/present, don't
678 * touch anything. Note this can happen early
679 * on if the IRQ is shared.
680 */
681 if (sc->sc_flags & SC_OP_INVALID)
682 return IRQ_NONE;
Sujithff37e332008-11-24 12:07:55 +0530683
Sujithff37e332008-11-24 12:07:55 +0530684
Sujith063d8be2009-03-30 15:28:49 +0530685 /* shared irq, not for us */
Sujithff37e332008-11-24 12:07:55 +0530686
Vasanthakumar Thiagarajan153e0802009-05-15 02:47:16 -0400687 if (!ath9k_hw_intrpend(ah))
Sujith063d8be2009-03-30 15:28:49 +0530688 return IRQ_NONE;
Sujithff37e332008-11-24 12:07:55 +0530689
Sujith063d8be2009-03-30 15:28:49 +0530690 /*
691 * Figure out the reason(s) for the interrupt. Note
692 * that the hal returns a pseudo-ISR that may include
693 * bits we haven't explicitly enabled so we mask the
694 * value to insure we only process bits we requested.
695 */
696 ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */
Pavel Roskin30691682010-03-31 18:05:31 -0400697 status &= ah->imask; /* discard unasked-for bits */
Sujith063d8be2009-03-30 15:28:49 +0530698
699 /*
700 * If there are no status bits set, then this interrupt was not
701 * for me (should have been caught above).
702 */
Vasanthakumar Thiagarajan153e0802009-05-15 02:47:16 -0400703 if (!status)
Sujith063d8be2009-03-30 15:28:49 +0530704 return IRQ_NONE;
Sujith063d8be2009-03-30 15:28:49 +0530705
706 /* Cache the status */
707 sc->intrstatus = status;
708
709 if (status & SCHED_INTR)
710 sched = true;
711
712 /*
713 * If a FATAL or RXORN interrupt is received, we have to reset the
714 * chip immediately.
715 */
Felix Fietkaub5c804752010-04-15 17:38:48 -0400716 if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) &&
717 !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)))
Sujith063d8be2009-03-30 15:28:49 +0530718 goto chip_reset;
719
Luis R. Rodriguez08578b82010-05-13 13:33:44 -0400720 if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
721 (status & ATH9K_INT_BB_WATCHDOG)) {
Felix Fietkaub5bfc562010-10-08 22:13:53 +0200722
723 spin_lock(&common->cc_lock);
724 ath_hw_cycle_counters_update(common);
Luis R. Rodriguez08578b82010-05-13 13:33:44 -0400725 ar9003_hw_bb_watchdog_dbg_info(ah);
Felix Fietkaub5bfc562010-10-08 22:13:53 +0200726 spin_unlock(&common->cc_lock);
727
Luis R. Rodriguez08578b82010-05-13 13:33:44 -0400728 goto chip_reset;
729 }
730
Sujith063d8be2009-03-30 15:28:49 +0530731 if (status & ATH9K_INT_SWBA)
732 tasklet_schedule(&sc->bcon_tasklet);
733
734 if (status & ATH9K_INT_TXURN)
735 ath9k_hw_updatetxtriglevel(ah, true);
736
Felix Fietkaub5c804752010-04-15 17:38:48 -0400737 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
738 if (status & ATH9K_INT_RXEOL) {
739 ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
740 ath9k_hw_set_interrupts(ah, ah->imask);
741 }
742 }
743
Sujith063d8be2009-03-30 15:28:49 +0530744 if (status & ATH9K_INT_MIB) {
745 /*
746 * Disable interrupts until we service the MIB
747 * interrupt; otherwise it will continue to
748 * fire.
749 */
Felix Fietkau4df30712010-11-08 20:54:47 +0100750 ath9k_hw_disable_interrupts(ah);
Sujith063d8be2009-03-30 15:28:49 +0530751 /*
752 * Let the hal handle the event. We assume
753 * it will clear whatever condition caused
754 * the interrupt.
755 */
Felix Fietkau88eac2d2010-10-12 16:08:03 +0200756 spin_lock(&common->cc_lock);
Felix Fietkaubfc472b2010-10-04 20:09:48 +0200757 ath9k_hw_proc_mib_event(ah);
Felix Fietkau88eac2d2010-10-12 16:08:03 +0200758 spin_unlock(&common->cc_lock);
Felix Fietkau4df30712010-11-08 20:54:47 +0100759 ath9k_hw_enable_interrupts(ah);
Sujith063d8be2009-03-30 15:28:49 +0530760 }
761
Vasanthakumar Thiagarajan153e0802009-05-15 02:47:16 -0400762 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
763 if (status & ATH9K_INT_TIM_TIMER) {
Sujith063d8be2009-03-30 15:28:49 +0530764 /* Clear RxAbort bit so that we can
765 * receive frames */
Luis R. Rodriguez9ecdef42009-09-09 21:10:09 -0700766 ath9k_setpower(sc, ATH9K_PM_AWAKE);
Vasanthakumar Thiagarajan153e0802009-05-15 02:47:16 -0400767 ath9k_hw_setrxabort(sc->sc_ah, 0);
Sujith1b04b932010-01-08 10:36:05 +0530768 sc->ps_flags |= PS_WAIT_FOR_BEACON;
Sujith063d8be2009-03-30 15:28:49 +0530769 }
Sujith063d8be2009-03-30 15:28:49 +0530770
771chip_reset:
772
Sujith817e11d2008-12-07 21:42:44 +0530773 ath_debug_stat_interrupt(sc, status);
774
Sujithff37e332008-11-24 12:07:55 +0530775 if (sched) {
Felix Fietkau4df30712010-11-08 20:54:47 +0100776 /* turn off every interrupt */
777 ath9k_hw_disable_interrupts(ah);
Sujithff37e332008-11-24 12:07:55 +0530778 tasklet_schedule(&sc->intr_tq);
779 }
780
781 return IRQ_HANDLED;
Sujith063d8be2009-03-30 15:28:49 +0530782
783#undef SCHED_INTR
Sujithff37e332008-11-24 12:07:55 +0530784}
785
Luis R. Rodriguezf078f202008-08-04 00:16:41 -0700786static u32 ath_get_extchanmode(struct ath_softc *sc,
Sujith99405f92008-11-24 12:08:35 +0530787 struct ieee80211_channel *chan,
Sujith094d05d2008-12-12 11:57:43 +0530788 enum nl80211_channel_type channel_type)
Luis R. Rodriguezf078f202008-08-04 00:16:41 -0700789{
790 u32 chanmode = 0;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -0700791
792 switch (chan->band) {
793 case IEEE80211_BAND_2GHZ:
Sujith094d05d2008-12-12 11:57:43 +0530794 switch(channel_type) {
795 case NL80211_CHAN_NO_HT:
796 case NL80211_CHAN_HT20:
Luis R. Rodriguezf078f202008-08-04 00:16:41 -0700797 chanmode = CHANNEL_G_HT20;
Sujith094d05d2008-12-12 11:57:43 +0530798 break;
799 case NL80211_CHAN_HT40PLUS:
Luis R. Rodriguezf078f202008-08-04 00:16:41 -0700800 chanmode = CHANNEL_G_HT40PLUS;
Sujith094d05d2008-12-12 11:57:43 +0530801 break;
802 case NL80211_CHAN_HT40MINUS:
Luis R. Rodriguezf078f202008-08-04 00:16:41 -0700803 chanmode = CHANNEL_G_HT40MINUS;
Sujith094d05d2008-12-12 11:57:43 +0530804 break;
805 }
Luis R. Rodriguezf078f202008-08-04 00:16:41 -0700806 break;
807 case IEEE80211_BAND_5GHZ:
Sujith094d05d2008-12-12 11:57:43 +0530808 switch(channel_type) {
809 case NL80211_CHAN_NO_HT:
810 case NL80211_CHAN_HT20:
Luis R. Rodriguezf078f202008-08-04 00:16:41 -0700811 chanmode = CHANNEL_A_HT20;
Sujith094d05d2008-12-12 11:57:43 +0530812 break;
813 case NL80211_CHAN_HT40PLUS:
Luis R. Rodriguezf078f202008-08-04 00:16:41 -0700814 chanmode = CHANNEL_A_HT40PLUS;
Sujith094d05d2008-12-12 11:57:43 +0530815 break;
816 case NL80211_CHAN_HT40MINUS:
Luis R. Rodriguezf078f202008-08-04 00:16:41 -0700817 chanmode = CHANNEL_A_HT40MINUS;
Sujith094d05d2008-12-12 11:57:43 +0530818 break;
819 }
Luis R. Rodriguezf078f202008-08-04 00:16:41 -0700820 break;
821 default:
822 break;
823 }
824
825 return chanmode;
826}
827
Vasanthakumar Thiagarajan8feceb62008-09-10 18:49:27 +0530828static void ath9k_bss_assoc_info(struct ath_softc *sc,
Felix Fietkau9fa23e12010-10-15 20:03:31 +0200829 struct ieee80211_hw *hw,
Sujith5640b082008-10-29 10:16:06 +0530830 struct ieee80211_vif *vif,
Vasanthakumar Thiagarajan8feceb62008-09-10 18:49:27 +0530831 struct ieee80211_bss_conf *bss_conf)
832{
Felix Fietkau9fa23e12010-10-15 20:03:31 +0200833 struct ath_wiphy *aphy = hw->priv;
Luis R. Rodriguezf2b21432009-09-10 08:50:20 -0700834 struct ath_hw *ah = sc->sc_ah;
Luis R. Rodriguez15107182009-09-10 09:22:37 -0700835 struct ath_common *common = ath9k_hw_common(ah);
Vasanthakumar Thiagarajan8feceb62008-09-10 18:49:27 +0530836
837 if (bss_conf->assoc) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700838 ath_print(common, ATH_DBG_CONFIG,
839 "Bss Info ASSOC %d, bssid: %pM\n",
840 bss_conf->aid, common->curbssid);
Vasanthakumar Thiagarajan8feceb62008-09-10 18:49:27 +0530841
Vasanthakumar Thiagarajan8feceb62008-09-10 18:49:27 +0530842 /* New association, store aid */
Luis R. Rodriguez15107182009-09-10 09:22:37 -0700843 common->curaid = bss_conf->aid;
Luis R. Rodriguezf2b21432009-09-10 08:50:20 -0700844 ath9k_hw_write_associd(ah);
Jouni Malinenccdfeab2009-05-20 21:59:08 +0300845
Senthil Balasubramanian2664f202009-06-24 18:56:39 +0530846 /*
847 * Request a re-configuration of Beacon related timers
848 * on the receipt of the first Beacon frame (i.e.,
849 * after time sync with the AP).
850 */
Sujith1b04b932010-01-08 10:36:05 +0530851 sc->ps_flags |= PS_BEACON_SYNC;
Vasanthakumar Thiagarajan8feceb62008-09-10 18:49:27 +0530852
853 /* Configure the beacon */
Jouni Malinen2c3db3d2009-03-03 19:23:26 +0200854 ath_beacon_config(sc, vif);
Vasanthakumar Thiagarajan8feceb62008-09-10 18:49:27 +0530855
856 /* Reset rssi stats */
Felix Fietkau9fa23e12010-10-15 20:03:31 +0200857 aphy->last_rssi = ATH_RSSI_DUMMY_MARKER;
Vasanthakumar Thiagarajan22e66a42009-08-19 16:23:40 +0530858 sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
Vasanthakumar Thiagarajan8feceb62008-09-10 18:49:27 +0530859
Vasanthakumar Thiagarajan6c3118e2010-06-23 06:49:21 -0700860 sc->sc_flags |= SC_OP_ANI_RUN;
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -0800861 ath_start_ani(common);
Vasanthakumar Thiagarajan8feceb62008-09-10 18:49:27 +0530862 } else {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700863 ath_print(common, ATH_DBG_CONFIG, "Bss Info DISASSOC\n");
Luis R. Rodriguez15107182009-09-10 09:22:37 -0700864 common->curaid = 0;
Senthil Balasubramanianf38faa32009-06-24 18:56:40 +0530865 /* Stop ANI */
Vasanthakumar Thiagarajan6c3118e2010-06-23 06:49:21 -0700866 sc->sc_flags &= ~SC_OP_ANI_RUN;
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -0800867 del_timer_sync(&common->ani.timer);
Vasanthakumar Thiagarajan8feceb62008-09-10 18:49:27 +0530868 }
869}
870
Luis R. Rodriguez68a89112009-11-02 14:35:42 -0800871void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw)
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530872{
Sujithcbe61d8a2009-02-09 13:27:12 +0530873 struct ath_hw *ah = sc->sc_ah;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700874 struct ath_common *common = ath9k_hw_common(ah);
Luis R. Rodriguez68a89112009-11-02 14:35:42 -0800875 struct ieee80211_channel *channel = hw->conf.channel;
Luis R. Rodriguezae8d2852008-12-23 15:58:40 -0800876 int r;
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530877
Vivek Natarajan3cbb5dd2009-01-20 11:17:08 +0530878 ath9k_ps_wakeup(sc);
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -0700879 spin_lock_bh(&sc->sc_pcu_lock);
880
Vivek Natarajan93b1b372009-09-17 09:24:58 +0530881 ath9k_hw_configpcipowersave(ah, 0, 0);
Sujithd2f5b3a2009-04-13 21:56:25 +0530882
Vasanthakumar Thiagarajan159cd462009-06-13 14:50:25 +0530883 if (!ah->curchan)
884 ah->curchan = ath_get_curchannel(sc, sc->hw);
885
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200886 r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
Luis R. Rodriguezae8d2852008-12-23 15:58:40 -0800887 if (r) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700888 ath_print(common, ATH_DBG_FATAL,
Pavel Roskinf643e512010-01-29 17:22:12 -0500889 "Unable to reset channel (%u MHz), "
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700890 "reset status %d\n",
891 channel->center_freq, r);
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530892 }
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530893
894 ath_update_txpow(sc);
895 if (ath_startrecv(sc) != 0) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700896 ath_print(common, ATH_DBG_FATAL,
897 "Unable to restart recv logic\n");
Luis R. Rodriguez4bdd1e92010-10-26 15:27:24 -0700898 spin_unlock_bh(&sc->sc_pcu_lock);
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530899 return;
900 }
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530901 if (sc->sc_flags & SC_OP_BEACONS)
Jouni Malinen2c3db3d2009-03-03 19:23:26 +0200902 ath_beacon_config(sc, NULL); /* restart beacons */
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530903
904 /* Re-Enable interrupts */
Pavel Roskin30691682010-03-31 18:05:31 -0400905 ath9k_hw_set_interrupts(ah, ah->imask);
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530906
907 /* Enable LED */
Vivek Natarajan08fc5c12009-08-14 11:30:52 +0530908 ath9k_hw_cfg_output(ah, ah->led_pin,
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530909 AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
Vivek Natarajan08fc5c12009-08-14 11:30:52 +0530910 ath9k_hw_set_gpio(ah, ah->led_pin, 0);
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530911
Luis R. Rodriguez68a89112009-11-02 14:35:42 -0800912 ieee80211_wake_queues(hw);
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -0700913 spin_unlock_bh(&sc->sc_pcu_lock);
914
Vivek Natarajan3cbb5dd2009-01-20 11:17:08 +0530915 ath9k_ps_restore(sc);
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530916}
917
Luis R. Rodriguez68a89112009-11-02 14:35:42 -0800918void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw)
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530919{
Sujithcbe61d8a2009-02-09 13:27:12 +0530920 struct ath_hw *ah = sc->sc_ah;
Luis R. Rodriguez68a89112009-11-02 14:35:42 -0800921 struct ieee80211_channel *channel = hw->conf.channel;
Luis R. Rodriguezae8d2852008-12-23 15:58:40 -0800922 int r;
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530923
Vivek Natarajan3cbb5dd2009-01-20 11:17:08 +0530924 ath9k_ps_wakeup(sc);
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -0700925 spin_lock_bh(&sc->sc_pcu_lock);
926
Luis R. Rodriguez68a89112009-11-02 14:35:42 -0800927 ieee80211_stop_queues(hw);
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530928
Vivek Natarajan982723d2010-06-23 12:08:29 +0530929 /*
930 * Keep the LED on when the radio is disabled
931 * during idle unassociated state.
932 */
933 if (!sc->ps_idle) {
934 ath9k_hw_set_gpio(ah, ah->led_pin, 1);
935 ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
936 }
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530937
938 /* Disable interrupts */
Felix Fietkau4df30712010-11-08 20:54:47 +0100939 ath9k_hw_disable_interrupts(ah);
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530940
Sujith043a0402009-01-16 21:38:47 +0530941 ath_drain_all_txq(sc, false); /* clear pending tx frames */
Luis R. Rodriguez5e848f72010-10-20 16:07:06 -0700942
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530943 ath_stoprecv(sc); /* turn off frame recv */
944 ath_flushrecv(sc); /* flush recv queue */
945
Vasanthakumar Thiagarajan159cd462009-06-13 14:50:25 +0530946 if (!ah->curchan)
Luis R. Rodriguez68a89112009-11-02 14:35:42 -0800947 ah->curchan = ath_get_curchannel(sc, hw);
Vasanthakumar Thiagarajan159cd462009-06-13 14:50:25 +0530948
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200949 r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
Luis R. Rodriguezae8d2852008-12-23 15:58:40 -0800950 if (r) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700951 ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL,
Pavel Roskinf643e512010-01-29 17:22:12 -0500952 "Unable to reset channel (%u MHz), "
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700953 "reset status %d\n",
954 channel->center_freq, r);
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530955 }
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530956
957 ath9k_hw_phy_disable(ah);
Luis R. Rodriguez5e848f72010-10-20 16:07:06 -0700958
Vivek Natarajan93b1b372009-09-17 09:24:58 +0530959 ath9k_hw_configpcipowersave(ah, 1, 1);
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -0700960
961 spin_unlock_bh(&sc->sc_pcu_lock);
Vivek Natarajan3cbb5dd2009-01-20 11:17:08 +0530962 ath9k_ps_restore(sc);
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -0700963
Luis R. Rodriguez9ecdef42009-09-09 21:10:09 -0700964 ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP);
Vasanthakumar Thiagarajan500c0642008-09-10 18:50:17 +0530965}
966
Sujithff37e332008-11-24 12:07:55 +0530967int ath_reset(struct ath_softc *sc, bool retry_tx)
968{
Sujithcbe61d8a2009-02-09 13:27:12 +0530969 struct ath_hw *ah = sc->sc_ah;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700970 struct ath_common *common = ath9k_hw_common(ah);
Luis R. Rodriguez030bb492008-12-23 15:58:37 -0800971 struct ieee80211_hw *hw = sc->hw;
Luis R. Rodriguezae8d2852008-12-23 15:58:40 -0800972 int r;
Sujithff37e332008-11-24 12:07:55 +0530973
Sujith2ab81d42009-12-14 16:34:56 +0530974 /* Stop ANI */
975 del_timer_sync(&common->ani.timer);
976
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -0700977 spin_lock_bh(&sc->sc_pcu_lock);
978
Sujithcc9c3782010-01-08 10:36:09 +0530979 ieee80211_stop_queues(hw);
980
Felix Fietkau4df30712010-11-08 20:54:47 +0100981 ath9k_hw_disable_interrupts(ah);
Sujith043a0402009-01-16 21:38:47 +0530982 ath_drain_all_txq(sc, retry_tx);
Luis R. Rodriguez5e848f72010-10-20 16:07:06 -0700983
Sujithff37e332008-11-24 12:07:55 +0530984 ath_stoprecv(sc);
985 ath_flushrecv(sc);
986
Felix Fietkau20bd2a02010-07-31 00:12:00 +0200987 r = ath9k_hw_reset(ah, sc->sc_ah->curchan, ah->caldata, false);
Luis R. Rodriguezae8d2852008-12-23 15:58:40 -0800988 if (r)
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700989 ath_print(common, ATH_DBG_FATAL,
990 "Unable to reset hardware; reset status %d\n", r);
Sujithff37e332008-11-24 12:07:55 +0530991
992 if (ath_startrecv(sc) != 0)
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -0700993 ath_print(common, ATH_DBG_FATAL,
994 "Unable to start recv logic\n");
Sujithff37e332008-11-24 12:07:55 +0530995
996 /*
997 * We may be doing a reset in response to a request
998 * that changes the channel so update any state that
999 * might change as a result.
1000 */
Sujithff37e332008-11-24 12:07:55 +05301001 ath_update_txpow(sc);
1002
Luis R. Rodriguez52b8ac92010-09-16 15:12:27 -04001003 if ((sc->sc_flags & SC_OP_BEACONS) || !(sc->sc_flags & (SC_OP_OFFCHANNEL)))
Jouni Malinen2c3db3d2009-03-03 19:23:26 +02001004 ath_beacon_config(sc, NULL); /* restart beacons */
Sujithff37e332008-11-24 12:07:55 +05301005
Pavel Roskin30691682010-03-31 18:05:31 -04001006 ath9k_hw_set_interrupts(ah, ah->imask);
Sujithff37e332008-11-24 12:07:55 +05301007
1008 if (retry_tx) {
1009 int i;
1010 for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
1011 if (ATH_TXQ_SETUP(sc, i)) {
Sujithb77f4832008-12-07 21:44:03 +05301012 spin_lock_bh(&sc->tx.txq[i].axq_lock);
1013 ath_txq_schedule(sc, &sc->tx.txq[i]);
1014 spin_unlock_bh(&sc->tx.txq[i].axq_lock);
Sujithff37e332008-11-24 12:07:55 +05301015 }
1016 }
1017 }
1018
Sujithcc9c3782010-01-08 10:36:09 +05301019 ieee80211_wake_queues(hw);
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -07001020 spin_unlock_bh(&sc->sc_pcu_lock);
Sujithcc9c3782010-01-08 10:36:09 +05301021
Sujith2ab81d42009-12-14 16:34:56 +05301022 /* Start ANI */
1023 ath_start_ani(common);
1024
Luis R. Rodriguezae8d2852008-12-23 15:58:40 -08001025 return r;
Sujithff37e332008-11-24 12:07:55 +05301026}
1027
Luis R. Rodriguez5f8e0772009-01-22 15:16:48 -08001028/* XXX: Remove me once we don't depend on ath9k_channel for all
1029 * this redundant data */
Jouni Malinen0e2dedf2009-03-03 19:23:32 +02001030void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw,
1031 struct ath9k_channel *ichan)
Luis R. Rodriguez5f8e0772009-01-22 15:16:48 -08001032{
Luis R. Rodriguez5f8e0772009-01-22 15:16:48 -08001033 struct ieee80211_channel *chan = hw->conf.channel;
1034 struct ieee80211_conf *conf = &hw->conf;
1035
1036 ichan->channel = chan->center_freq;
1037 ichan->chan = chan;
1038
1039 if (chan->band == IEEE80211_BAND_2GHZ) {
1040 ichan->chanmode = CHANNEL_G;
Sujith88132622009-09-03 12:08:53 +05301041 ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM | CHANNEL_G;
Luis R. Rodriguez5f8e0772009-01-22 15:16:48 -08001042 } else {
1043 ichan->chanmode = CHANNEL_A;
1044 ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM;
1045 }
1046
Luis R. Rodriguez25c56ee2009-09-13 23:04:44 -07001047 if (conf_is_ht(conf))
Luis R. Rodriguez5f8e0772009-01-22 15:16:48 -08001048 ichan->chanmode = ath_get_extchanmode(sc, chan,
1049 conf->channel_type);
Luis R. Rodriguez5f8e0772009-01-22 15:16:48 -08001050}
1051
Sujithff37e332008-11-24 12:07:55 +05301052/**********************/
1053/* mac80211 callbacks */
1054/**********************/
1055
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001056static int ath9k_start(struct ieee80211_hw *hw)
1057{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001058 struct ath_wiphy *aphy = hw->priv;
1059 struct ath_softc *sc = aphy->sc;
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -07001060 struct ath_hw *ah = sc->sc_ah;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001061 struct ath_common *common = ath9k_hw_common(ah);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001062 struct ieee80211_channel *curchan = hw->conf.channel;
Sujithff37e332008-11-24 12:07:55 +05301063 struct ath9k_channel *init_channel;
Vasanthakumar Thiagarajan82880a72009-06-13 14:50:24 +05301064 int r;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001065
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001066 ath_print(common, ATH_DBG_CONFIG,
1067 "Starting driver with initial channel: %d MHz\n",
1068 curchan->center_freq);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001069
Sujith141b38b2009-02-04 08:10:07 +05301070 mutex_lock(&sc->mutex);
1071
Jouni Malinen9580a222009-03-03 19:23:33 +02001072 if (ath9k_wiphy_started(sc)) {
1073 if (sc->chan_idx == curchan->hw_value) {
1074 /*
1075 * Already on the operational channel, the new wiphy
1076 * can be marked active.
1077 */
1078 aphy->state = ATH_WIPHY_ACTIVE;
1079 ieee80211_wake_queues(hw);
1080 } else {
1081 /*
1082 * Another wiphy is on another channel, start the new
1083 * wiphy in paused state.
1084 */
1085 aphy->state = ATH_WIPHY_PAUSED;
1086 ieee80211_stop_queues(hw);
1087 }
1088 mutex_unlock(&sc->mutex);
1089 return 0;
1090 }
1091 aphy->state = ATH_WIPHY_ACTIVE;
1092
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001093 /* setup initial channel */
1094
Vasanthakumar Thiagarajan82880a72009-06-13 14:50:24 +05301095 sc->chan_idx = curchan->hw_value;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001096
Vasanthakumar Thiagarajan82880a72009-06-13 14:50:24 +05301097 init_channel = ath_get_curchannel(sc, hw);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001098
Sujithff37e332008-11-24 12:07:55 +05301099 /* Reset SERDES registers */
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -07001100 ath9k_hw_configpcipowersave(ah, 0, 0);
Sujithff37e332008-11-24 12:07:55 +05301101
1102 /*
1103 * The basic interface to setting the hardware in a good
1104 * state is ``reset''. On return the hardware is known to
1105 * be powered up and with interrupts disabled. This must
1106 * be followed by initialization of the appropriate bits
1107 * and then setup of the interrupt mask.
1108 */
Luis R. Rodriguez4bdd1e92010-10-26 15:27:24 -07001109 spin_lock_bh(&sc->sc_pcu_lock);
Felix Fietkau20bd2a02010-07-31 00:12:00 +02001110 r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
Luis R. Rodriguezae8d2852008-12-23 15:58:40 -08001111 if (r) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001112 ath_print(common, ATH_DBG_FATAL,
1113 "Unable to reset hardware; reset status %d "
1114 "(freq %u MHz)\n", r,
1115 curchan->center_freq);
Luis R. Rodriguez4bdd1e92010-10-26 15:27:24 -07001116 spin_unlock_bh(&sc->sc_pcu_lock);
Sujith141b38b2009-02-04 08:10:07 +05301117 goto mutex_unlock;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001118 }
Sujithff37e332008-11-24 12:07:55 +05301119
1120 /*
1121 * This is needed only to setup initial state
1122 * but it's best done after a reset.
1123 */
1124 ath_update_txpow(sc);
1125
1126 /*
1127 * Setup the hardware after reset:
1128 * The receive engine is set going.
1129 * Frame transmit is handled entirely
1130 * in the frame output path; there's nothing to do
1131 * here except setup the interrupt mask.
1132 */
1133 if (ath_startrecv(sc) != 0) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001134 ath_print(common, ATH_DBG_FATAL,
1135 "Unable to start recv logic\n");
Sujith141b38b2009-02-04 08:10:07 +05301136 r = -EIO;
Luis R. Rodriguez4bdd1e92010-10-26 15:27:24 -07001137 spin_unlock_bh(&sc->sc_pcu_lock);
Sujith141b38b2009-02-04 08:10:07 +05301138 goto mutex_unlock;
Sujithff37e332008-11-24 12:07:55 +05301139 }
Luis R. Rodriguez4bdd1e92010-10-26 15:27:24 -07001140 spin_unlock_bh(&sc->sc_pcu_lock);
Sujithff37e332008-11-24 12:07:55 +05301141
1142 /* Setup our intr mask. */
Felix Fietkaub5c804752010-04-15 17:38:48 -04001143 ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL |
1144 ATH9K_INT_RXORN | ATH9K_INT_FATAL |
1145 ATH9K_INT_GLOBAL;
1146
1147 if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
Luis R. Rodriguez08578b82010-05-13 13:33:44 -04001148 ah->imask |= ATH9K_INT_RXHP |
1149 ATH9K_INT_RXLP |
1150 ATH9K_INT_BB_WATCHDOG;
Felix Fietkaub5c804752010-04-15 17:38:48 -04001151 else
1152 ah->imask |= ATH9K_INT_RX;
Sujithff37e332008-11-24 12:07:55 +05301153
Felix Fietkau364734f2010-09-14 20:22:44 +02001154 ah->imask |= ATH9K_INT_GTT;
Sujithff37e332008-11-24 12:07:55 +05301155
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -07001156 if (ah->caps.hw_caps & ATH9K_HW_CAP_HT)
Pavel Roskin30691682010-03-31 18:05:31 -04001157 ah->imask |= ATH9K_INT_CST;
Sujithff37e332008-11-24 12:07:55 +05301158
Sujithff37e332008-11-24 12:07:55 +05301159 sc->sc_flags &= ~SC_OP_INVALID;
1160
1161 /* Disable BMISS interrupt when we're not associated */
Pavel Roskin30691682010-03-31 18:05:31 -04001162 ah->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS);
1163 ath9k_hw_set_interrupts(ah, ah->imask);
Sujithff37e332008-11-24 12:07:55 +05301164
Jouni Malinenbce048d2009-03-03 19:23:28 +02001165 ieee80211_wake_queues(hw);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001166
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04001167 ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
Senthil Balasubramanian164ace32009-07-14 20:17:09 -04001168
Luis R. Rodriguez766ec4a2009-09-09 14:52:02 -07001169 if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) &&
1170 !ah->btcoex_hw.enabled) {
Luis R. Rodriguez5e197292009-09-09 15:15:55 -07001171 ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
1172 AR_STOMP_LOW_WLAN_WGHT);
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -07001173 ath9k_hw_btcoex_enable(ah);
Vasanthakumar Thiagarajanf985ad12009-08-26 21:08:43 +05301174
Luis R. Rodriguez5bb12792009-09-14 00:55:09 -07001175 if (common->bus_ops->bt_coex_prep)
1176 common->bus_ops->bt_coex_prep(common);
Luis R. Rodriguez766ec4a2009-09-09 14:52:02 -07001177 if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
Luis R. Rodriguez75d78392009-09-09 04:00:10 -07001178 ath9k_btcoex_timer_resume(sc);
Vasanthakumar Thiagarajan17739122009-08-26 21:08:50 +05301179 }
1180
Sujith141b38b2009-02-04 08:10:07 +05301181mutex_unlock:
1182 mutex_unlock(&sc->mutex);
1183
Luis R. Rodriguezae8d2852008-12-23 15:58:40 -08001184 return r;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001185}
1186
1187static int ath9k_tx(struct ieee80211_hw *hw,
1188 struct sk_buff *skb)
1189{
Jouni Malinen147583c2008-08-11 14:01:50 +03001190 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
Jouni Malinenbce048d2009-03-03 19:23:28 +02001191 struct ath_wiphy *aphy = hw->priv;
1192 struct ath_softc *sc = aphy->sc;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001193 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
Sujith528f0c62008-10-29 10:14:26 +05301194 struct ath_tx_control txctl;
Benoit Papillault1bc14882009-11-24 15:49:18 +01001195 int padpos, padsize;
1196 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
Sujith528f0c62008-10-29 10:14:26 +05301197
Jouni Malinen8089cc42009-03-03 19:23:38 +02001198 if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001199 ath_print(common, ATH_DBG_XMIT,
1200 "ath9k: %s: TX in unexpected wiphy state "
1201 "%d\n", wiphy_name(hw->wiphy), aphy->state);
Jouni Malinenee166a02009-03-03 19:23:36 +02001202 goto exit;
1203 }
1204
Gabor Juhos96148322009-07-24 17:27:21 +02001205 if (sc->ps_enabled) {
Jouni Malinendc8c4582009-05-19 17:01:42 +03001206 /*
1207 * mac80211 does not set PM field for normal data frames, so we
1208 * need to update that based on the current PS mode.
1209 */
1210 if (ieee80211_is_data(hdr->frame_control) &&
1211 !ieee80211_is_nullfunc(hdr->frame_control) &&
1212 !ieee80211_has_pm(hdr->frame_control)) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001213 ath_print(common, ATH_DBG_PS, "Add PM=1 for a TX frame "
1214 "while in PS mode\n");
Jouni Malinendc8c4582009-05-19 17:01:42 +03001215 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1216 }
1217 }
1218
Jouni Malinen9a23f9c2009-05-19 17:01:38 +03001219 if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) {
1220 /*
1221 * We are using PS-Poll and mac80211 can request TX while in
1222 * power save mode. Need to wake up hardware for the TX to be
1223 * completed and if needed, also for RX of buffered frames.
1224 */
Jouni Malinen9a23f9c2009-05-19 17:01:38 +03001225 ath9k_ps_wakeup(sc);
Vasanthakumar Thiagarajanfdf76622010-05-17 18:57:55 -07001226 if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
1227 ath9k_hw_setrxabort(sc->sc_ah, 0);
Jouni Malinen9a23f9c2009-05-19 17:01:38 +03001228 if (ieee80211_is_pspoll(hdr->frame_control)) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001229 ath_print(common, ATH_DBG_PS,
1230 "Sending PS-Poll to pick a buffered frame\n");
Sujith1b04b932010-01-08 10:36:05 +05301231 sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA;
Jouni Malinen9a23f9c2009-05-19 17:01:38 +03001232 } else {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001233 ath_print(common, ATH_DBG_PS,
1234 "Wake up to complete TX\n");
Sujith1b04b932010-01-08 10:36:05 +05301235 sc->ps_flags |= PS_WAIT_FOR_TX_ACK;
Jouni Malinen9a23f9c2009-05-19 17:01:38 +03001236 }
1237 /*
1238 * The actual restore operation will happen only after
1239 * the sc_flags bit is cleared. We are just dropping
1240 * the ps_usecount here.
1241 */
1242 ath9k_ps_restore(sc);
1243 }
1244
Sujith528f0c62008-10-29 10:14:26 +05301245 memset(&txctl, 0, sizeof(struct ath_tx_control));
Jouni Malinen147583c2008-08-11 14:01:50 +03001246
1247 /*
1248 * As a temporary workaround, assign seq# here; this will likely need
1249 * to be cleaned up to work better with Beacon transmission and virtual
1250 * BSSes.
1251 */
1252 if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
Jouni Malinen147583c2008-08-11 14:01:50 +03001253 if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
Sujithb77f4832008-12-07 21:44:03 +05301254 sc->tx.seq_no += 0x10;
Jouni Malinen147583c2008-08-11 14:01:50 +03001255 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
Sujithb77f4832008-12-07 21:44:03 +05301256 hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no);
Jouni Malinen147583c2008-08-11 14:01:50 +03001257 }
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001258
1259 /* Add the padding after the header if this is not already done */
Benoit Papillault1bc14882009-11-24 15:49:18 +01001260 padpos = ath9k_cmn_padpos(hdr->frame_control);
1261 padsize = padpos & 3;
1262 if (padsize && skb->len>padpos) {
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001263 if (skb_headroom(skb) < padsize)
1264 return -1;
1265 skb_push(skb, padsize);
Benoit Papillault1bc14882009-11-24 15:49:18 +01001266 memmove(skb->data, skb->data + padsize, padpos);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001267 }
1268
Felix Fietkau066dae92010-11-07 14:59:39 +01001269 txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)];
Sujith528f0c62008-10-29 10:14:26 +05301270
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001271 ath_print(common, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001272
Jouni Malinenc52f33d2009-03-03 19:23:29 +02001273 if (ath_tx_start(hw, skb, &txctl) != 0) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001274 ath_print(common, ATH_DBG_XMIT, "TX failed\n");
Sujith528f0c62008-10-29 10:14:26 +05301275 goto exit;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001276 }
1277
1278 return 0;
Sujith528f0c62008-10-29 10:14:26 +05301279exit:
1280 dev_kfree_skb_any(skb);
1281 return 0;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001282}
1283
1284static void ath9k_stop(struct ieee80211_hw *hw)
1285{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001286 struct ath_wiphy *aphy = hw->priv;
1287 struct ath_softc *sc = aphy->sc;
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -07001288 struct ath_hw *ah = sc->sc_ah;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001289 struct ath_common *common = ath9k_hw_common(ah);
Rajkumar Manoharan447a42c2010-07-08 12:12:29 +05301290 int i;
Sujith9c84b792008-10-29 10:17:13 +05301291
Sujith4c483812009-08-18 10:51:52 +05301292 mutex_lock(&sc->mutex);
1293
Jouni Malinen9580a222009-03-03 19:23:33 +02001294 aphy->state = ATH_WIPHY_INACTIVE;
1295
Vivek Natarajan9a75c2f2010-06-22 11:52:37 +05301296 if (led_blink)
1297 cancel_delayed_work_sync(&sc->ath_led_blink_work);
1298
Luis R. Rodriguezc94dbff2009-07-27 11:53:04 -07001299 cancel_delayed_work_sync(&sc->tx_complete_work);
Felix Fietkau9f42c2b2010-06-12 00:34:01 -04001300 cancel_work_sync(&sc->paprd_work);
Felix Fietkau347809f2010-07-02 00:09:52 +02001301 cancel_work_sync(&sc->hw_check_work);
Luis R. Rodriguezc94dbff2009-07-27 11:53:04 -07001302
Rajkumar Manoharan447a42c2010-07-08 12:12:29 +05301303 for (i = 0; i < sc->num_sec_wiphy; i++) {
1304 if (sc->sec_wiphy[i])
1305 break;
1306 }
1307
1308 if (i == sc->num_sec_wiphy) {
Luis R. Rodriguezc94dbff2009-07-27 11:53:04 -07001309 cancel_delayed_work_sync(&sc->wiphy_work);
1310 cancel_work_sync(&sc->chan_work);
1311 }
1312
Sujith9c84b792008-10-29 10:17:13 +05301313 if (sc->sc_flags & SC_OP_INVALID) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001314 ath_print(common, ATH_DBG_ANY, "Device not present\n");
Sujith4c483812009-08-18 10:51:52 +05301315 mutex_unlock(&sc->mutex);
Sujith9c84b792008-10-29 10:17:13 +05301316 return;
1317 }
1318
Jouni Malinen9580a222009-03-03 19:23:33 +02001319 if (ath9k_wiphy_started(sc)) {
1320 mutex_unlock(&sc->mutex);
1321 return; /* another wiphy still in use */
1322 }
1323
Sujith3867cf62009-12-23 20:03:27 -05001324 /* Ensure HW is awake when we try to shut it down. */
1325 ath9k_ps_wakeup(sc);
1326
Luis R. Rodriguez766ec4a2009-09-09 14:52:02 -07001327 if (ah->btcoex_hw.enabled) {
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -07001328 ath9k_hw_btcoex_disable(ah);
Luis R. Rodriguez766ec4a2009-09-09 14:52:02 -07001329 if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
Luis R. Rodriguez75d78392009-09-09 04:00:10 -07001330 ath9k_btcoex_timer_pause(sc);
Vasanthakumar Thiagarajan17739122009-08-26 21:08:50 +05301331 }
1332
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -07001333 spin_lock_bh(&sc->sc_pcu_lock);
1334
Sujithff37e332008-11-24 12:07:55 +05301335 /* make sure h/w will not generate any interrupt
1336 * before setting the invalid flag. */
Felix Fietkau4df30712010-11-08 20:54:47 +01001337 ath9k_hw_disable_interrupts(ah);
Sujithff37e332008-11-24 12:07:55 +05301338
1339 if (!(sc->sc_flags & SC_OP_INVALID)) {
Sujith043a0402009-01-16 21:38:47 +05301340 ath_drain_all_txq(sc, false);
Sujithff37e332008-11-24 12:07:55 +05301341 ath_stoprecv(sc);
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -07001342 ath9k_hw_phy_disable(ah);
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -07001343 } else
Sujithb77f4832008-12-07 21:44:03 +05301344 sc->rx.rxlink = NULL;
Sujithff37e332008-11-24 12:07:55 +05301345
Sujithff37e332008-11-24 12:07:55 +05301346 /* disable HAL and put h/w to sleep */
Luis R. Rodriguezaf03abe2009-09-09 02:33:11 -07001347 ath9k_hw_disable(ah);
1348 ath9k_hw_configpcipowersave(ah, 1, 1);
Luis R. Rodriguez6a6733f2010-10-26 15:27:25 -07001349
1350 spin_unlock_bh(&sc->sc_pcu_lock);
1351
Sujith3867cf62009-12-23 20:03:27 -05001352 ath9k_ps_restore(sc);
1353
1354 /* Finally, put the chip in FULL SLEEP mode */
Luis R. Rodriguez9ecdef42009-09-09 21:10:09 -07001355 ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP);
Sujithff37e332008-11-24 12:07:55 +05301356
1357 sc->sc_flags |= SC_OP_INVALID;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001358
Sujith141b38b2009-02-04 08:10:07 +05301359 mutex_unlock(&sc->mutex);
1360
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001361 ath_print(common, ATH_DBG_CONFIG, "Driver halt\n");
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001362}
1363
1364static int ath9k_add_interface(struct ieee80211_hw *hw,
Johannes Berg1ed32e42009-12-23 13:15:45 +01001365 struct ieee80211_vif *vif)
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001366{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001367 struct ath_wiphy *aphy = hw->priv;
1368 struct ath_softc *sc = aphy->sc;
Pavel Roskin30691682010-03-31 18:05:31 -04001369 struct ath_hw *ah = sc->sc_ah;
1370 struct ath_common *common = ath9k_hw_common(ah);
Johannes Berg1ed32e42009-12-23 13:15:45 +01001371 struct ath_vif *avp = (void *)vif->drv_priv;
Colin McCabed97809d2008-12-01 13:38:55 -08001372 enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED;
Jouni Malinen2c3db3d2009-03-03 19:23:26 +02001373 int ret = 0;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001374
Sujith141b38b2009-02-04 08:10:07 +05301375 mutex_lock(&sc->mutex);
1376
Johannes Berg1ed32e42009-12-23 13:15:45 +01001377 switch (vif->type) {
Johannes Berg05c914f2008-09-11 00:01:58 +02001378 case NL80211_IFTYPE_STATION:
Colin McCabed97809d2008-12-01 13:38:55 -08001379 ic_opmode = NL80211_IFTYPE_STATION;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001380 break;
Bill Jordane51f3ef2010-10-01 11:20:39 -04001381 case NL80211_IFTYPE_WDS:
1382 ic_opmode = NL80211_IFTYPE_WDS;
1383 break;
Johannes Berg05c914f2008-09-11 00:01:58 +02001384 case NL80211_IFTYPE_ADHOC:
Johannes Berg05c914f2008-09-11 00:01:58 +02001385 case NL80211_IFTYPE_AP:
Pat Erley9cb54122009-03-20 22:59:59 -04001386 case NL80211_IFTYPE_MESH_POINT:
Jouni Malinen2c3db3d2009-03-03 19:23:26 +02001387 if (sc->nbcnvifs >= ATH_BCBUF) {
1388 ret = -ENOBUFS;
1389 goto out;
1390 }
Johannes Berg1ed32e42009-12-23 13:15:45 +01001391 ic_opmode = vif->type;
Jouni Malinen2ad67de2008-08-11 14:01:47 +03001392 break;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001393 default:
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001394 ath_print(common, ATH_DBG_FATAL,
Johannes Berg1ed32e42009-12-23 13:15:45 +01001395 "Interface type %d not yet supported\n", vif->type);
Jouni Malinen2c3db3d2009-03-03 19:23:26 +02001396 ret = -EOPNOTSUPP;
1397 goto out;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001398 }
1399
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001400 ath_print(common, ATH_DBG_CONFIG,
1401 "Attach a VIF of type: %d\n", ic_opmode);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001402
Sujith17d79042009-02-09 13:27:03 +05301403 /* Set the VIF opmode */
Sujith5640b082008-10-29 10:16:06 +05301404 avp->av_opmode = ic_opmode;
1405 avp->av_bslot = -1;
1406
Jouni Malinen2c3db3d2009-03-03 19:23:26 +02001407 sc->nvifs++;
Jouni Malinen8ca21f02009-03-03 19:23:27 +02001408
Felix Fietkau364734f2010-09-14 20:22:44 +02001409 ath9k_set_bssid_mask(hw, vif);
Jouni Malinen8ca21f02009-03-03 19:23:27 +02001410
Jouni Malinen2c3db3d2009-03-03 19:23:26 +02001411 if (sc->nvifs > 1)
1412 goto out; /* skip global settings for secondary vif */
1413
Sujithb238e902009-03-03 10:16:56 +05301414 if (ic_opmode == NL80211_IFTYPE_AP) {
Pavel Roskin30691682010-03-31 18:05:31 -04001415 ath9k_hw_set_tsfadjust(ah, 1);
Sujithb238e902009-03-03 10:16:56 +05301416 sc->sc_flags |= SC_OP_TSF_RESET;
1417 }
Sujith5640b082008-10-29 10:16:06 +05301418
Sujith5640b082008-10-29 10:16:06 +05301419 /* Set the device opmode */
Pavel Roskin30691682010-03-31 18:05:31 -04001420 ah->opmode = ic_opmode;
Sujith5640b082008-10-29 10:16:06 +05301421
Vivek Natarajan4e30ffa2009-01-28 20:53:27 +05301422 /*
1423 * Enable MIB interrupts when there are hardware phy counters.
1424 * Note we only do this (at the moment) for station mode.
1425 */
Johannes Berg1ed32e42009-12-23 13:15:45 +01001426 if ((vif->type == NL80211_IFTYPE_STATION) ||
1427 (vif->type == NL80211_IFTYPE_ADHOC) ||
1428 (vif->type == NL80211_IFTYPE_MESH_POINT)) {
Luis R. Rodriguez3448f912010-04-15 17:38:23 -04001429 if (ah->config.enable_ani)
1430 ah->imask |= ATH9K_INT_MIB;
Pavel Roskin30691682010-03-31 18:05:31 -04001431 ah->imask |= ATH9K_INT_TSFOOR;
Sujith4af9cf42009-02-12 10:06:47 +05301432 }
1433
Pavel Roskin30691682010-03-31 18:05:31 -04001434 ath9k_hw_set_interrupts(ah, ah->imask);
Vivek Natarajan4e30ffa2009-01-28 20:53:27 +05301435
Johannes Berg1ed32e42009-12-23 13:15:45 +01001436 if (vif->type == NL80211_IFTYPE_AP ||
1437 vif->type == NL80211_IFTYPE_ADHOC ||
Vasanthakumar Thiagarajan6c3118e2010-06-23 06:49:21 -07001438 vif->type == NL80211_IFTYPE_MONITOR) {
1439 sc->sc_flags |= SC_OP_ANI_RUN;
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -08001440 ath_start_ani(common);
Vasanthakumar Thiagarajan6c3118e2010-06-23 06:49:21 -07001441 }
Luis R. Rodriguez6f255422008-10-03 15:45:27 -07001442
Jouni Malinen2c3db3d2009-03-03 19:23:26 +02001443out:
Sujith141b38b2009-02-04 08:10:07 +05301444 mutex_unlock(&sc->mutex);
Jouni Malinen2c3db3d2009-03-03 19:23:26 +02001445 return ret;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001446}
1447
1448static void ath9k_remove_interface(struct ieee80211_hw *hw,
Johannes Berg1ed32e42009-12-23 13:15:45 +01001449 struct ieee80211_vif *vif)
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001450{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001451 struct ath_wiphy *aphy = hw->priv;
1452 struct ath_softc *sc = aphy->sc;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001453 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
Johannes Berg1ed32e42009-12-23 13:15:45 +01001454 struct ath_vif *avp = (void *)vif->drv_priv;
Jouni Malinen2c3db3d2009-03-03 19:23:26 +02001455 int i;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001456
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001457 ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n");
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001458
Sujith141b38b2009-02-04 08:10:07 +05301459 mutex_lock(&sc->mutex);
1460
Luis R. Rodriguez6f255422008-10-03 15:45:27 -07001461 /* Stop ANI */
Vasanthakumar Thiagarajan6c3118e2010-06-23 06:49:21 -07001462 sc->sc_flags &= ~SC_OP_ANI_RUN;
Luis R. Rodriguez3d536ac2009-11-03 17:07:04 -08001463 del_timer_sync(&common->ani.timer);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001464
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001465 /* Reclaim beacon resources */
Pat Erley9cb54122009-03-20 22:59:59 -04001466 if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) ||
1467 (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) ||
1468 (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) {
Luis R. Rodriguez5f70a882009-12-23 20:03:28 -05001469 ath9k_ps_wakeup(sc);
Sujithb77f4832008-12-07 21:44:03 +05301470 ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
Luis R. Rodriguez5f70a882009-12-23 20:03:28 -05001471 ath9k_ps_restore(sc);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001472 }
1473
Felix Fietkau74401772010-01-19 20:51:32 +01001474 ath_beacon_return(sc, avp);
Sujith672840a2008-08-11 14:05:08 +05301475 sc->sc_flags &= ~SC_OP_BEACONS;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001476
Jouni Malinen2c3db3d2009-03-03 19:23:26 +02001477 for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) {
Johannes Berg1ed32e42009-12-23 13:15:45 +01001478 if (sc->beacon.bslot[i] == vif) {
Jouni Malinen2c3db3d2009-03-03 19:23:26 +02001479 printk(KERN_DEBUG "%s: vif had allocated beacon "
1480 "slot\n", __func__);
1481 sc->beacon.bslot[i] = NULL;
Jouni Malinenc52f33d2009-03-03 19:23:29 +02001482 sc->beacon.bslot_aphy[i] = NULL;
Jouni Malinen2c3db3d2009-03-03 19:23:26 +02001483 }
1484 }
1485
Sujith17d79042009-02-09 13:27:03 +05301486 sc->nvifs--;
Sujith141b38b2009-02-04 08:10:07 +05301487
1488 mutex_unlock(&sc->mutex);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001489}
1490
Senthil Balasubramanianfbab7392010-10-05 20:36:40 +05301491static void ath9k_enable_ps(struct ath_softc *sc)
Senthil Balasubramanian3f7c5c12010-02-03 22:51:13 +05301492{
Pavel Roskin30691682010-03-31 18:05:31 -04001493 struct ath_hw *ah = sc->sc_ah;
1494
Senthil Balasubramanian3f7c5c12010-02-03 22:51:13 +05301495 sc->ps_enabled = true;
Pavel Roskin30691682010-03-31 18:05:31 -04001496 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1497 if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) {
1498 ah->imask |= ATH9K_INT_TIM_TIMER;
1499 ath9k_hw_set_interrupts(ah, ah->imask);
Senthil Balasubramanian3f7c5c12010-02-03 22:51:13 +05301500 }
Vasanthakumar Thiagarajanfdf76622010-05-17 18:57:55 -07001501 ath9k_hw_setrxabort(ah, 1);
Senthil Balasubramanian3f7c5c12010-02-03 22:51:13 +05301502 }
Senthil Balasubramanian3f7c5c12010-02-03 22:51:13 +05301503}
1504
Senthil Balasubramanian845d7082010-10-05 20:36:41 +05301505static void ath9k_disable_ps(struct ath_softc *sc)
1506{
1507 struct ath_hw *ah = sc->sc_ah;
1508
1509 sc->ps_enabled = false;
1510 ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
1511 if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
1512 ath9k_hw_setrxabort(ah, 0);
1513 sc->ps_flags &= ~(PS_WAIT_FOR_BEACON |
1514 PS_WAIT_FOR_CAB |
1515 PS_WAIT_FOR_PSPOLL_DATA |
1516 PS_WAIT_FOR_TX_ACK);
1517 if (ah->imask & ATH9K_INT_TIM_TIMER) {
1518 ah->imask &= ~ATH9K_INT_TIM_TIMER;
1519 ath9k_hw_set_interrupts(ah, ah->imask);
1520 }
1521 }
1522
1523}
1524
Johannes Berge8975582008-10-09 12:18:51 +02001525static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001526{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001527 struct ath_wiphy *aphy = hw->priv;
1528 struct ath_softc *sc = aphy->sc;
Felix Fietkau34300982010-10-10 18:21:52 +02001529 struct ath_hw *ah = sc->sc_ah;
1530 struct ath_common *common = ath9k_hw_common(ah);
Johannes Berge8975582008-10-09 12:18:51 +02001531 struct ieee80211_conf *conf = &hw->conf;
Luis R. Rodriguez194b7c12009-10-29 10:41:15 -07001532 bool disable_radio;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001533
Sujithaa33de02008-12-18 11:40:16 +05301534 mutex_lock(&sc->mutex);
Sujith141b38b2009-02-04 08:10:07 +05301535
Luis R. Rodriguez194b7c12009-10-29 10:41:15 -07001536 /*
1537 * Leave this as the first check because we need to turn on the
1538 * radio if it was disabled before prior to processing the rest
1539 * of the changes. Likewise we must only disable the radio towards
1540 * the end.
1541 */
Luis R. Rodriguez64839172009-07-14 20:22:53 -04001542 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
Luis R. Rodriguez194b7c12009-10-29 10:41:15 -07001543 bool enable_radio;
1544 bool all_wiphys_idle;
1545 bool idle = !!(conf->flags & IEEE80211_CONF_IDLE);
Luis R. Rodriguez64839172009-07-14 20:22:53 -04001546
1547 spin_lock_bh(&sc->wiphy_lock);
1548 all_wiphys_idle = ath9k_all_wiphys_idle(sc);
Luis R. Rodriguez194b7c12009-10-29 10:41:15 -07001549 ath9k_set_wiphy_idle(aphy, idle);
1550
Felix Fietkau11446012010-04-06 12:05:01 -07001551 enable_radio = (!idle && all_wiphys_idle);
Luis R. Rodriguez194b7c12009-10-29 10:41:15 -07001552
1553 /*
1554 * After we unlock here its possible another wiphy
1555 * can be re-renabled so to account for that we will
1556 * only disable the radio toward the end of this routine
1557 * if by then all wiphys are still idle.
1558 */
Luis R. Rodriguez64839172009-07-14 20:22:53 -04001559 spin_unlock_bh(&sc->wiphy_lock);
1560
Luis R. Rodriguez194b7c12009-10-29 10:41:15 -07001561 if (enable_radio) {
Vivek Natarajan1dbfd9d2010-01-29 16:56:51 +05301562 sc->ps_idle = false;
Luis R. Rodriguez68a89112009-11-02 14:35:42 -08001563 ath_radio_enable(sc, hw);
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001564 ath_print(common, ATH_DBG_CONFIG,
1565 "not-idle: enabling radio\n");
Luis R. Rodriguez64839172009-07-14 20:22:53 -04001566 }
1567 }
1568
Luis R. Rodrigueze7824a52009-11-24 02:53:25 -05001569 /*
1570 * We just prepare to enable PS. We have to wait until our AP has
1571 * ACK'd our null data frame to disable RX otherwise we'll ignore
1572 * those ACKs and end up retransmitting the same null data frames.
1573 * IEEE80211_CONF_CHANGE_PS is only passed by mac80211 for STA mode.
1574 */
Vivek Natarajan3cbb5dd2009-01-20 11:17:08 +05301575 if (changed & IEEE80211_CONF_CHANGE_PS) {
Luis R. Rodriguez8ab2cd02010-09-16 15:12:26 -04001576 unsigned long flags;
1577 spin_lock_irqsave(&sc->sc_pm_lock, flags);
Senthil Balasubramanianfbab7392010-10-05 20:36:40 +05301578 if (conf->flags & IEEE80211_CONF_PS)
1579 ath9k_enable_ps(sc);
Senthil Balasubramanian845d7082010-10-05 20:36:41 +05301580 else
1581 ath9k_disable_ps(sc);
Luis R. Rodriguez8ab2cd02010-09-16 15:12:26 -04001582 spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
Vivek Natarajan3cbb5dd2009-01-20 11:17:08 +05301583 }
1584
Sujith199afd92010-01-08 10:36:13 +05301585 if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
1586 if (conf->flags & IEEE80211_CONF_MONITOR) {
1587 ath_print(common, ATH_DBG_CONFIG,
1588 "HW opmode set to Monitor mode\n");
1589 sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR;
1590 }
1591 }
1592
Johannes Berg47979382009-01-07 10:13:27 +01001593 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
Sujith99405f92008-11-24 12:08:35 +05301594 struct ieee80211_channel *curchan = hw->conf.channel;
Luis R. Rodriguez5f8e0772009-01-22 15:16:48 -08001595 int pos = curchan->hw_value;
Felix Fietkau34300982010-10-10 18:21:52 +02001596 int old_pos = -1;
1597 unsigned long flags;
1598
1599 if (ah->curchan)
1600 old_pos = ah->curchan - &ah->channels[0];
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001601
Jouni Malinen0e2dedf2009-03-03 19:23:32 +02001602 aphy->chan_idx = pos;
1603 aphy->chan_is_ht = conf_is_ht(conf);
Felix Fietkau5ee08652010-07-31 00:11:59 +02001604 if (hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)
1605 sc->sc_flags |= SC_OP_OFFCHANNEL;
1606 else
1607 sc->sc_flags &= ~SC_OP_OFFCHANNEL;
Jouni Malinen0e2dedf2009-03-03 19:23:32 +02001608
Jouni Malinen8089cc42009-03-03 19:23:38 +02001609 if (aphy->state == ATH_WIPHY_SCAN ||
1610 aphy->state == ATH_WIPHY_ACTIVE)
1611 ath9k_wiphy_pause_all_forced(sc, aphy);
1612 else {
1613 /*
1614 * Do not change operational channel based on a paused
1615 * wiphy changes.
1616 */
1617 goto skip_chan_change;
1618 }
Jouni Malinen0e2dedf2009-03-03 19:23:32 +02001619
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001620 ath_print(common, ATH_DBG_CONFIG, "Set channel: %d MHz\n",
1621 curchan->center_freq);
Johannes Bergae5eb022008-10-14 16:58:37 +02001622
Luis R. Rodriguez5f8e0772009-01-22 15:16:48 -08001623 /* XXX: remove me eventualy */
Jouni Malinen0e2dedf2009-03-03 19:23:32 +02001624 ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]);
Sujithe11602b2008-11-27 09:46:27 +05301625
Luis R. Rodriguezecf70442008-12-23 15:58:43 -08001626 ath_update_chainmask(sc, conf_is_ht(conf));
Sujith86060f02009-01-07 14:25:29 +05301627
Felix Fietkau34300982010-10-10 18:21:52 +02001628 /* update survey stats for the old channel before switching */
1629 spin_lock_irqsave(&common->cc_lock, flags);
1630 ath_update_survey_stats(sc);
1631 spin_unlock_irqrestore(&common->cc_lock, flags);
1632
1633 /*
1634 * If the operating channel changes, change the survey in-use flags
1635 * along with it.
1636 * Reset the survey data for the new channel, unless we're switching
1637 * back to the operating channel from an off-channel operation.
1638 */
1639 if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) &&
1640 sc->cur_survey != &sc->survey[pos]) {
1641
1642 if (sc->cur_survey)
1643 sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
1644
1645 sc->cur_survey = &sc->survey[pos];
1646
1647 memset(sc->cur_survey, 0, sizeof(struct survey_info));
1648 sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
1649 } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
1650 memset(&sc->survey[pos], 0, sizeof(struct survey_info));
1651 }
1652
Jouni Malinen0e2dedf2009-03-03 19:23:32 +02001653 if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001654 ath_print(common, ATH_DBG_FATAL,
1655 "Unable to set channel\n");
Sujithaa33de02008-12-18 11:40:16 +05301656 mutex_unlock(&sc->mutex);
Sujithe11602b2008-11-27 09:46:27 +05301657 return -EINVAL;
1658 }
Felix Fietkau34300982010-10-10 18:21:52 +02001659
1660 /*
1661 * The most recent snapshot of channel->noisefloor for the old
1662 * channel is only available after the hardware reset. Copy it to
1663 * the survey stats now.
1664 */
1665 if (old_pos >= 0)
1666 ath_update_survey_nf(sc, old_pos);
Sujith094d05d2008-12-12 11:57:43 +05301667 }
Sujith86b89ee2008-08-07 10:54:57 +05301668
Jouni Malinen8089cc42009-03-03 19:23:38 +02001669skip_chan_change:
Luis R. Rodriguezc9f6a652010-01-19 14:04:19 -05001670 if (changed & IEEE80211_CONF_CHANGE_POWER) {
Sujith17d79042009-02-09 13:27:03 +05301671 sc->config.txpowlimit = 2 * conf->power_level;
Luis R. Rodriguezc9f6a652010-01-19 14:04:19 -05001672 ath_update_txpow(sc);
1673 }
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001674
Luis R. Rodriguez194b7c12009-10-29 10:41:15 -07001675 spin_lock_bh(&sc->wiphy_lock);
1676 disable_radio = ath9k_all_wiphys_idle(sc);
1677 spin_unlock_bh(&sc->wiphy_lock);
1678
Luis R. Rodriguez64839172009-07-14 20:22:53 -04001679 if (disable_radio) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001680 ath_print(common, ATH_DBG_CONFIG, "idle: disabling radio\n");
Vivek Natarajan1dbfd9d2010-01-29 16:56:51 +05301681 sc->ps_idle = true;
Luis R. Rodriguez68a89112009-11-02 14:35:42 -08001682 ath_radio_disable(sc, hw);
Luis R. Rodriguez64839172009-07-14 20:22:53 -04001683 }
1684
Sujithaa33de02008-12-18 11:40:16 +05301685 mutex_unlock(&sc->mutex);
Sujith141b38b2009-02-04 08:10:07 +05301686
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001687 return 0;
1688}
1689
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001690#define SUPPORTED_FILTERS \
1691 (FIF_PROMISC_IN_BSS | \
1692 FIF_ALLMULTI | \
1693 FIF_CONTROL | \
Luis R. Rodriguezaf6a3fc2009-08-08 21:55:16 -04001694 FIF_PSPOLL | \
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001695 FIF_OTHER_BSS | \
1696 FIF_BCN_PRBRESP_PROMISC | \
Jouni Malinen9c1d8e42010-10-13 17:29:31 +03001697 FIF_PROBE_REQ | \
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001698 FIF_FCSFAIL)
1699
Sujith7dcfdcd2008-08-11 14:03:13 +05301700/* FIXME: sc->sc_full_reset ? */
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001701static void ath9k_configure_filter(struct ieee80211_hw *hw,
1702 unsigned int changed_flags,
1703 unsigned int *total_flags,
Johannes Berg3ac64be2009-08-17 16:16:53 +02001704 u64 multicast)
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001705{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001706 struct ath_wiphy *aphy = hw->priv;
1707 struct ath_softc *sc = aphy->sc;
Sujith7dcfdcd2008-08-11 14:03:13 +05301708 u32 rfilt;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001709
1710 changed_flags &= SUPPORTED_FILTERS;
1711 *total_flags &= SUPPORTED_FILTERS;
1712
Sujithb77f4832008-12-07 21:44:03 +05301713 sc->rx.rxfilter = *total_flags;
Jouni Malinenaa68aea2009-05-19 17:01:41 +03001714 ath9k_ps_wakeup(sc);
Sujith7dcfdcd2008-08-11 14:03:13 +05301715 rfilt = ath_calcrxfilter(sc);
1716 ath9k_hw_setrxfilter(sc->sc_ah, rfilt);
Jouni Malinenaa68aea2009-05-19 17:01:41 +03001717 ath9k_ps_restore(sc);
Sujith7dcfdcd2008-08-11 14:03:13 +05301718
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001719 ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG,
1720 "Set HW RX filter: 0x%x\n", rfilt);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001721}
1722
Johannes Berg4ca77862010-02-19 19:06:56 +01001723static int ath9k_sta_add(struct ieee80211_hw *hw,
1724 struct ieee80211_vif *vif,
1725 struct ieee80211_sta *sta)
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001726{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001727 struct ath_wiphy *aphy = hw->priv;
1728 struct ath_softc *sc = aphy->sc;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001729
Johannes Berg4ca77862010-02-19 19:06:56 +01001730 ath_node_attach(sc, sta);
1731
1732 return 0;
1733}
1734
1735static int ath9k_sta_remove(struct ieee80211_hw *hw,
1736 struct ieee80211_vif *vif,
1737 struct ieee80211_sta *sta)
1738{
1739 struct ath_wiphy *aphy = hw->priv;
1740 struct ath_softc *sc = aphy->sc;
1741
1742 ath_node_detach(sc, sta);
1743
1744 return 0;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001745}
1746
Sujith141b38b2009-02-04 08:10:07 +05301747static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue,
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001748 const struct ieee80211_tx_queue_params *params)
1749{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001750 struct ath_wiphy *aphy = hw->priv;
1751 struct ath_softc *sc = aphy->sc;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001752 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
Felix Fietkau066dae92010-11-07 14:59:39 +01001753 struct ath_txq *txq;
Sujithea9880f2008-08-07 10:53:10 +05301754 struct ath9k_tx_queue_info qi;
Felix Fietkau066dae92010-11-07 14:59:39 +01001755 int ret = 0;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001756
1757 if (queue >= WME_NUM_AC)
1758 return 0;
1759
Felix Fietkau066dae92010-11-07 14:59:39 +01001760 txq = sc->tx.txq_map[queue];
1761
Sujith141b38b2009-02-04 08:10:07 +05301762 mutex_lock(&sc->mutex);
1763
Sujith1ffb0612009-03-30 15:28:46 +05301764 memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
1765
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001766 qi.tqi_aifs = params->aifs;
1767 qi.tqi_cwmin = params->cw_min;
1768 qi.tqi_cwmax = params->cw_max;
1769 qi.tqi_burstTime = params->txop;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001770
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001771 ath_print(common, ATH_DBG_CONFIG,
1772 "Configure tx [queue/halq] [%d/%d], "
1773 "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
Felix Fietkau066dae92010-11-07 14:59:39 +01001774 queue, txq->axq_qnum, params->aifs, params->cw_min,
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001775 params->cw_max, params->txop);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001776
Felix Fietkau066dae92010-11-07 14:59:39 +01001777 ret = ath_txq_update(sc, txq->axq_qnum, &qi);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001778 if (ret)
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001779 ath_print(common, ATH_DBG_FATAL, "TXQ Update failed\n");
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001780
Vivek Natarajan94db2932009-11-25 12:01:54 +05301781 if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC)
Felix Fietkau066dae92010-11-07 14:59:39 +01001782 if (queue == WME_AC_BE && !ret)
Vivek Natarajan94db2932009-11-25 12:01:54 +05301783 ath_beaconq_config(sc);
1784
Sujith141b38b2009-02-04 08:10:07 +05301785 mutex_unlock(&sc->mutex);
1786
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001787 return ret;
1788}
1789
1790static int ath9k_set_key(struct ieee80211_hw *hw,
1791 enum set_key_cmd cmd,
Johannes Bergdc822b52008-12-29 12:55:09 +01001792 struct ieee80211_vif *vif,
1793 struct ieee80211_sta *sta,
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001794 struct ieee80211_key_conf *key)
1795{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001796 struct ath_wiphy *aphy = hw->priv;
1797 struct ath_softc *sc = aphy->sc;
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001798 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001799 int ret = 0;
1800
Jouni Malinenb3bd89c2009-02-24 13:42:01 +02001801 if (modparam_nohwcrypt)
1802 return -ENOSPC;
1803
Sujith141b38b2009-02-04 08:10:07 +05301804 mutex_lock(&sc->mutex);
Vivek Natarajan3cbb5dd2009-01-20 11:17:08 +05301805 ath9k_ps_wakeup(sc);
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001806 ath_print(common, ATH_DBG_CONFIG, "Set HW Key\n");
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001807
1808 switch (cmd) {
1809 case SET_KEY:
Bruno Randolf040e5392010-09-08 16:05:04 +09001810 ret = ath_key_config(common, vif, sta, key);
Jouni Malinen6ace2892008-12-17 13:32:17 +02001811 if (ret >= 0) {
1812 key->hw_key_idx = ret;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001813 /* push IV and Michael MIC generation to stack */
1814 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
Johannes Berg97359d12010-08-10 09:46:38 +02001815 if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
Senthil Balasubramanian1b961752008-09-01 19:45:21 +05301816 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
Johannes Berg97359d12010-08-10 09:46:38 +02001817 if (sc->sc_ah->sw_mgmt_crypto &&
1818 key->cipher == WLAN_CIPHER_SUITE_CCMP)
Jouni Malinen0ced0e12009-01-08 13:32:13 +02001819 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
Jouni Malinen6ace2892008-12-17 13:32:17 +02001820 ret = 0;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001821 }
1822 break;
1823 case DISABLE_KEY:
Bruno Randolf040e5392010-09-08 16:05:04 +09001824 ath_key_delete(common, key);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001825 break;
1826 default:
1827 ret = -EINVAL;
1828 }
1829
Vivek Natarajan3cbb5dd2009-01-20 11:17:08 +05301830 ath9k_ps_restore(sc);
Sujith141b38b2009-02-04 08:10:07 +05301831 mutex_unlock(&sc->mutex);
1832
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001833 return ret;
1834}
1835
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001836static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
1837 struct ieee80211_vif *vif,
1838 struct ieee80211_bss_conf *bss_conf,
1839 u32 changed)
1840{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001841 struct ath_wiphy *aphy = hw->priv;
1842 struct ath_softc *sc = aphy->sc;
Johannes Berg2d0ddec2009-04-23 16:13:26 +02001843 struct ath_hw *ah = sc->sc_ah;
Luis R. Rodriguez15107182009-09-10 09:22:37 -07001844 struct ath_common *common = ath9k_hw_common(ah);
Johannes Berg2d0ddec2009-04-23 16:13:26 +02001845 struct ath_vif *avp = (void *)vif->drv_priv;
Felix Fietkau0005baf2010-01-15 02:33:40 +01001846 int slottime;
Sujithc6089cc2009-11-16 11:40:48 +05301847 int error;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001848
Sujith141b38b2009-02-04 08:10:07 +05301849 mutex_lock(&sc->mutex);
1850
Sujithc6089cc2009-11-16 11:40:48 +05301851 if (changed & BSS_CHANGED_BSSID) {
1852 /* Set BSSID */
1853 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
1854 memcpy(avp->bssid, bss_conf->bssid, ETH_ALEN);
Luis R. Rodriguez15107182009-09-10 09:22:37 -07001855 common->curaid = 0;
Luis R. Rodriguezf2b21432009-09-10 08:50:20 -07001856 ath9k_hw_write_associd(ah);
Sujithc6089cc2009-11-16 11:40:48 +05301857
1858 /* Set aggregation protection mode parameters */
1859 sc->config.ath_aggr_prot = 0;
1860
1861 /* Only legacy IBSS for now */
1862 if (vif->type == NL80211_IFTYPE_ADHOC)
1863 ath_update_chainmask(sc, 0);
1864
1865 ath_print(common, ATH_DBG_CONFIG,
1866 "BSSID: %pM aid: 0x%x\n",
1867 common->curbssid, common->curaid);
1868
1869 /* need to reconfigure the beacon */
1870 sc->sc_flags &= ~SC_OP_BEACONS ;
Johannes Berg2d0ddec2009-04-23 16:13:26 +02001871 }
1872
Sujithc6089cc2009-11-16 11:40:48 +05301873 /* Enable transmission of beacons (AP, IBSS, MESH) */
1874 if ((changed & BSS_CHANGED_BEACON) ||
1875 ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon)) {
1876 ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
1877 error = ath_beacon_alloc(aphy, vif);
1878 if (!error)
1879 ath_beacon_config(sc, vif);
Johannes Berg2d0ddec2009-04-23 16:13:26 +02001880 }
1881
Felix Fietkau0005baf2010-01-15 02:33:40 +01001882 if (changed & BSS_CHANGED_ERP_SLOT) {
1883 if (bss_conf->use_short_slot)
1884 slottime = 9;
1885 else
1886 slottime = 20;
1887 if (vif->type == NL80211_IFTYPE_AP) {
1888 /*
1889 * Defer update, so that connected stations can adjust
1890 * their settings at the same time.
1891 * See beacon.c for more details
1892 */
1893 sc->beacon.slottime = slottime;
1894 sc->beacon.updateslot = UPDATE;
1895 } else {
1896 ah->slottime = slottime;
1897 ath9k_hw_init_global_settings(ah);
1898 }
1899 }
1900
Sujithc6089cc2009-11-16 11:40:48 +05301901 /* Disable transmission of beacons */
1902 if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon)
1903 ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
1904
1905 if (changed & BSS_CHANGED_BEACON_INT) {
1906 sc->beacon_interval = bss_conf->beacon_int;
1907 /*
1908 * In case of AP mode, the HW TSF has to be reset
1909 * when the beacon interval changes.
1910 */
1911 if (vif->type == NL80211_IFTYPE_AP) {
1912 sc->sc_flags |= SC_OP_TSF_RESET;
Johannes Berg2d0ddec2009-04-23 16:13:26 +02001913 ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
Johannes Berg2d0ddec2009-04-23 16:13:26 +02001914 error = ath_beacon_alloc(aphy, vif);
1915 if (!error)
1916 ath_beacon_config(sc, vif);
Sujithc6089cc2009-11-16 11:40:48 +05301917 } else {
1918 ath_beacon_config(sc, vif);
Johannes Berg2d0ddec2009-04-23 16:13:26 +02001919 }
1920 }
1921
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001922 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001923 ath_print(common, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n",
1924 bss_conf->use_short_preamble);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001925 if (bss_conf->use_short_preamble)
Sujith672840a2008-08-11 14:05:08 +05301926 sc->sc_flags |= SC_OP_PREAMBLE_SHORT;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001927 else
Sujith672840a2008-08-11 14:05:08 +05301928 sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001929 }
1930
1931 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001932 ath_print(common, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n",
1933 bss_conf->use_cts_prot);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001934 if (bss_conf->use_cts_prot &&
1935 hw->conf.channel->band != IEEE80211_BAND_5GHZ)
Sujith672840a2008-08-11 14:05:08 +05301936 sc->sc_flags |= SC_OP_PROTECT_ENABLE;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001937 else
Sujith672840a2008-08-11 14:05:08 +05301938 sc->sc_flags &= ~SC_OP_PROTECT_ENABLE;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001939 }
1940
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001941 if (changed & BSS_CHANGED_ASSOC) {
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07001942 ath_print(common, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n",
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001943 bss_conf->assoc);
Felix Fietkau9fa23e12010-10-15 20:03:31 +02001944 ath9k_bss_assoc_info(sc, hw, vif, bss_conf);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001945 }
Sujith141b38b2009-02-04 08:10:07 +05301946
1947 mutex_unlock(&sc->mutex);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001948}
1949
1950static u64 ath9k_get_tsf(struct ieee80211_hw *hw)
1951{
1952 u64 tsf;
Jouni Malinenbce048d2009-03-03 19:23:28 +02001953 struct ath_wiphy *aphy = hw->priv;
1954 struct ath_softc *sc = aphy->sc;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001955
Sujith141b38b2009-02-04 08:10:07 +05301956 mutex_lock(&sc->mutex);
1957 tsf = ath9k_hw_gettsf64(sc->sc_ah);
1958 mutex_unlock(&sc->mutex);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001959
1960 return tsf;
1961}
1962
Alina Friedrichsen3b5d6652009-01-24 07:09:59 +01001963static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf)
1964{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001965 struct ath_wiphy *aphy = hw->priv;
1966 struct ath_softc *sc = aphy->sc;
Alina Friedrichsen3b5d6652009-01-24 07:09:59 +01001967
Sujith141b38b2009-02-04 08:10:07 +05301968 mutex_lock(&sc->mutex);
1969 ath9k_hw_settsf64(sc->sc_ah, tsf);
1970 mutex_unlock(&sc->mutex);
Alina Friedrichsen3b5d6652009-01-24 07:09:59 +01001971}
1972
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001973static void ath9k_reset_tsf(struct ieee80211_hw *hw)
1974{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001975 struct ath_wiphy *aphy = hw->priv;
1976 struct ath_softc *sc = aphy->sc;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001977
Sujith141b38b2009-02-04 08:10:07 +05301978 mutex_lock(&sc->mutex);
Luis R. Rodriguez21526d52009-09-09 20:05:39 -07001979
1980 ath9k_ps_wakeup(sc);
Sujith141b38b2009-02-04 08:10:07 +05301981 ath9k_hw_reset_tsf(sc->sc_ah);
Luis R. Rodriguez21526d52009-09-09 20:05:39 -07001982 ath9k_ps_restore(sc);
1983
Sujith141b38b2009-02-04 08:10:07 +05301984 mutex_unlock(&sc->mutex);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001985}
1986
1987static int ath9k_ampdu_action(struct ieee80211_hw *hw,
Johannes Bergc951ad32009-11-16 12:00:38 +01001988 struct ieee80211_vif *vif,
Sujith141b38b2009-02-04 08:10:07 +05301989 enum ieee80211_ampdu_mlme_action action,
1990 struct ieee80211_sta *sta,
1991 u16 tid, u16 *ssn)
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001992{
Jouni Malinenbce048d2009-03-03 19:23:28 +02001993 struct ath_wiphy *aphy = hw->priv;
1994 struct ath_softc *sc = aphy->sc;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001995 int ret = 0;
1996
Johannes Berg85ad1812010-06-10 10:21:49 +02001997 local_bh_disable();
1998
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07001999 switch (action) {
2000 case IEEE80211_AMPDU_RX_START:
Sujithdca3edb2008-10-29 10:19:01 +05302001 if (!(sc->sc_flags & SC_OP_RXAGGR))
2002 ret = -ENOTSUPP;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002003 break;
2004 case IEEE80211_AMPDU_RX_STOP:
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002005 break;
2006 case IEEE80211_AMPDU_TX_START:
Luis R. Rodriguez8b685ba2009-12-23 20:03:29 -05002007 ath9k_ps_wakeup(sc);
Felix Fietkau231c3a12010-09-20 19:35:28 +02002008 ret = ath_tx_aggr_start(sc, sta, tid, ssn);
2009 if (!ret)
2010 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
Luis R. Rodriguez8b685ba2009-12-23 20:03:29 -05002011 ath9k_ps_restore(sc);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002012 break;
2013 case IEEE80211_AMPDU_TX_STOP:
Luis R. Rodriguez8b685ba2009-12-23 20:03:29 -05002014 ath9k_ps_wakeup(sc);
Sujithf83da962009-07-23 15:32:37 +05302015 ath_tx_aggr_stop(sc, sta, tid);
Johannes Bergc951ad32009-11-16 12:00:38 +01002016 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
Luis R. Rodriguez8b685ba2009-12-23 20:03:29 -05002017 ath9k_ps_restore(sc);
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002018 break;
Johannes Bergb1720232009-03-23 17:28:39 +01002019 case IEEE80211_AMPDU_TX_OPERATIONAL:
Luis R. Rodriguez8b685ba2009-12-23 20:03:29 -05002020 ath9k_ps_wakeup(sc);
Sujith8469cde2008-10-29 10:19:28 +05302021 ath_tx_aggr_resume(sc, sta, tid);
Luis R. Rodriguez8b685ba2009-12-23 20:03:29 -05002022 ath9k_ps_restore(sc);
Sujith8469cde2008-10-29 10:19:28 +05302023 break;
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002024 default:
Luis R. Rodriguezc46917b2009-09-13 02:42:02 -07002025 ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL,
2026 "Unknown AMPDU action\n");
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002027 }
2028
Johannes Berg85ad1812010-06-10 10:21:49 +02002029 local_bh_enable();
2030
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002031 return ret;
2032}
2033
Benoit Papillault62dad5b2010-04-28 00:08:24 +02002034static int ath9k_get_survey(struct ieee80211_hw *hw, int idx,
2035 struct survey_info *survey)
2036{
2037 struct ath_wiphy *aphy = hw->priv;
2038 struct ath_softc *sc = aphy->sc;
Felix Fietkau34300982010-10-10 18:21:52 +02002039 struct ath_common *common = ath9k_hw_common(sc->sc_ah);
Felix Fietkau39162db2010-09-29 19:12:06 +02002040 struct ieee80211_supported_band *sband;
Felix Fietkau34300982010-10-10 18:21:52 +02002041 struct ieee80211_channel *chan;
2042 unsigned long flags;
2043 int pos;
2044
2045 spin_lock_irqsave(&common->cc_lock, flags);
2046 if (idx == 0)
2047 ath_update_survey_stats(sc);
Benoit Papillault62dad5b2010-04-28 00:08:24 +02002048
Felix Fietkau39162db2010-09-29 19:12:06 +02002049 sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
2050 if (sband && idx >= sband->n_channels) {
2051 idx -= sband->n_channels;
2052 sband = NULL;
2053 }
Benoit Papillault62dad5b2010-04-28 00:08:24 +02002054
Felix Fietkau39162db2010-09-29 19:12:06 +02002055 if (!sband)
2056 sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
2057
Felix Fietkau34300982010-10-10 18:21:52 +02002058 if (!sband || idx >= sband->n_channels) {
2059 spin_unlock_irqrestore(&common->cc_lock, flags);
2060 return -ENOENT;
Felix Fietkau4f1a5a42010-09-29 17:15:28 +02002061 }
Benoit Papillault62dad5b2010-04-28 00:08:24 +02002062
Felix Fietkau34300982010-10-10 18:21:52 +02002063 chan = &sband->channels[idx];
2064 pos = chan->hw_value;
2065 memcpy(survey, &sc->survey[pos], sizeof(*survey));
2066 survey->channel = chan;
2067 spin_unlock_irqrestore(&common->cc_lock, flags);
2068
Benoit Papillault62dad5b2010-04-28 00:08:24 +02002069 return 0;
2070}
2071
Sujith0c98de62009-03-03 10:16:45 +05302072static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
2073{
Jouni Malinenbce048d2009-03-03 19:23:28 +02002074 struct ath_wiphy *aphy = hw->priv;
2075 struct ath_softc *sc = aphy->sc;
Sujith0c98de62009-03-03 10:16:45 +05302076
Sujith3d832612009-08-21 12:00:28 +05302077 mutex_lock(&sc->mutex);
Jouni Malinen8089cc42009-03-03 19:23:38 +02002078 if (ath9k_wiphy_scanning(sc)) {
Jouni Malinen8089cc42009-03-03 19:23:38 +02002079 /*
Luis R. Rodriguez30888332010-07-27 16:33:06 -04002080 * There is a race here in mac80211 but fixing it requires
2081 * we revisit how we handle the scan complete callback.
2082 * After mac80211 fixes we will not have configured hardware
2083 * to the home channel nor would we have configured the RX
2084 * filter yet.
Jouni Malinen8089cc42009-03-03 19:23:38 +02002085 */
Sujith3d832612009-08-21 12:00:28 +05302086 mutex_unlock(&sc->mutex);
Jouni Malinen8089cc42009-03-03 19:23:38 +02002087 return;
2088 }
2089
2090 aphy->state = ATH_WIPHY_SCAN;
2091 ath9k_wiphy_pause_all_forced(sc, aphy);
Sujith3d832612009-08-21 12:00:28 +05302092 mutex_unlock(&sc->mutex);
Sujith0c98de62009-03-03 10:16:45 +05302093}
2094
Luis R. Rodriguez30888332010-07-27 16:33:06 -04002095/*
2096 * XXX: this requires a revisit after the driver
2097 * scan_complete gets moved to another place/removed in mac80211.
2098 */
Sujith0c98de62009-03-03 10:16:45 +05302099static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
2100{
Jouni Malinenbce048d2009-03-03 19:23:28 +02002101 struct ath_wiphy *aphy = hw->priv;
2102 struct ath_softc *sc = aphy->sc;
Sujith0c98de62009-03-03 10:16:45 +05302103
Sujith3d832612009-08-21 12:00:28 +05302104 mutex_lock(&sc->mutex);
Jouni Malinen8089cc42009-03-03 19:23:38 +02002105 aphy->state = ATH_WIPHY_ACTIVE;
Sujith3d832612009-08-21 12:00:28 +05302106 mutex_unlock(&sc->mutex);
Sujith0c98de62009-03-03 10:16:45 +05302107}
2108
Felix Fietkaue239d852010-01-15 02:34:58 +01002109static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
2110{
2111 struct ath_wiphy *aphy = hw->priv;
2112 struct ath_softc *sc = aphy->sc;
2113 struct ath_hw *ah = sc->sc_ah;
2114
2115 mutex_lock(&sc->mutex);
2116 ah->coverage_class = coverage_class;
2117 ath9k_hw_init_global_settings(ah);
2118 mutex_unlock(&sc->mutex);
2119}
2120
Gabor Juhos6baff7f2009-01-14 20:17:06 +01002121struct ieee80211_ops ath9k_ops = {
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002122 .tx = ath9k_tx,
2123 .start = ath9k_start,
2124 .stop = ath9k_stop,
2125 .add_interface = ath9k_add_interface,
2126 .remove_interface = ath9k_remove_interface,
2127 .config = ath9k_config,
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002128 .configure_filter = ath9k_configure_filter,
Johannes Berg4ca77862010-02-19 19:06:56 +01002129 .sta_add = ath9k_sta_add,
2130 .sta_remove = ath9k_sta_remove,
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002131 .conf_tx = ath9k_conf_tx,
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002132 .bss_info_changed = ath9k_bss_info_changed,
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002133 .set_key = ath9k_set_key,
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002134 .get_tsf = ath9k_get_tsf,
Alina Friedrichsen3b5d6652009-01-24 07:09:59 +01002135 .set_tsf = ath9k_set_tsf,
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002136 .reset_tsf = ath9k_reset_tsf,
Johannes Berg4233df62008-10-13 13:35:05 +02002137 .ampdu_action = ath9k_ampdu_action,
Benoit Papillault62dad5b2010-04-28 00:08:24 +02002138 .get_survey = ath9k_get_survey,
Sujith0c98de62009-03-03 10:16:45 +05302139 .sw_scan_start = ath9k_sw_scan_start,
2140 .sw_scan_complete = ath9k_sw_scan_complete,
Johannes Berg3b319aa2009-06-13 14:50:26 +05302141 .rfkill_poll = ath9k_rfkill_poll_state,
Felix Fietkaue239d852010-01-15 02:34:58 +01002142 .set_coverage_class = ath9k_set_coverage_class,
Luis R. Rodriguezf078f202008-08-04 00:16:41 -07002143};