Commit | Line | Data |
---|---|---|
f078f209 | 1 | /* |
cee075a2 | 2 | * Copyright (c) 2008-2009 Atheros Communications Inc. |
f078f209 LR |
3 | * |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
16 | ||
f078f209 | 17 | #include <linux/nl80211.h> |
394cf0a1 | 18 | #include "ath9k.h" |
af03abec | 19 | #include "btcoex.h" |
f078f209 | 20 | |
f078f209 LR |
21 | static char *dev_info = "ath9k"; |
22 | ||
23 | MODULE_AUTHOR("Atheros Communications"); | |
24 | MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards."); | |
25 | MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards"); | |
26 | MODULE_LICENSE("Dual BSD/GPL"); | |
27 | ||
b3bd89ce JM |
28 | static int modparam_nohwcrypt; |
29 | module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); | |
30 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption"); | |
31 | ||
faa27fae LR |
32 | static unsigned int ath9k_debug = ATH_DBG_DEFAULT; |
33 | module_param_named(debug, ath9k_debug, uint, 0); | |
34 | MODULE_PARM_DESC(ath9k_debug, "Debugging mask"); | |
35 | ||
5f8e077c LR |
36 | /* We use the hw_value as an index into our private channel structure */ |
37 | ||
38 | #define CHAN2G(_freq, _idx) { \ | |
39 | .center_freq = (_freq), \ | |
40 | .hw_value = (_idx), \ | |
eeddfd9d | 41 | .max_power = 20, \ |
5f8e077c LR |
42 | } |
43 | ||
44 | #define CHAN5G(_freq, _idx) { \ | |
45 | .band = IEEE80211_BAND_5GHZ, \ | |
46 | .center_freq = (_freq), \ | |
47 | .hw_value = (_idx), \ | |
eeddfd9d | 48 | .max_power = 20, \ |
5f8e077c LR |
49 | } |
50 | ||
51 | /* Some 2 GHz radios are actually tunable on 2312-2732 | |
52 | * on 5 MHz steps, we support the channels which we know | |
53 | * we have calibration data for all cards though to make | |
54 | * this static */ | |
55 | static struct ieee80211_channel ath9k_2ghz_chantable[] = { | |
56 | CHAN2G(2412, 0), /* Channel 1 */ | |
57 | CHAN2G(2417, 1), /* Channel 2 */ | |
58 | CHAN2G(2422, 2), /* Channel 3 */ | |
59 | CHAN2G(2427, 3), /* Channel 4 */ | |
60 | CHAN2G(2432, 4), /* Channel 5 */ | |
61 | CHAN2G(2437, 5), /* Channel 6 */ | |
62 | CHAN2G(2442, 6), /* Channel 7 */ | |
63 | CHAN2G(2447, 7), /* Channel 8 */ | |
64 | CHAN2G(2452, 8), /* Channel 9 */ | |
65 | CHAN2G(2457, 9), /* Channel 10 */ | |
66 | CHAN2G(2462, 10), /* Channel 11 */ | |
67 | CHAN2G(2467, 11), /* Channel 12 */ | |
68 | CHAN2G(2472, 12), /* Channel 13 */ | |
69 | CHAN2G(2484, 13), /* Channel 14 */ | |
70 | }; | |
71 | ||
72 | /* Some 5 GHz radios are actually tunable on XXXX-YYYY | |
73 | * on 5 MHz steps, we support the channels which we know | |
74 | * we have calibration data for all cards though to make | |
75 | * this static */ | |
76 | static struct ieee80211_channel ath9k_5ghz_chantable[] = { | |
77 | /* _We_ call this UNII 1 */ | |
78 | CHAN5G(5180, 14), /* Channel 36 */ | |
79 | CHAN5G(5200, 15), /* Channel 40 */ | |
80 | CHAN5G(5220, 16), /* Channel 44 */ | |
81 | CHAN5G(5240, 17), /* Channel 48 */ | |
82 | /* _We_ call this UNII 2 */ | |
83 | CHAN5G(5260, 18), /* Channel 52 */ | |
84 | CHAN5G(5280, 19), /* Channel 56 */ | |
85 | CHAN5G(5300, 20), /* Channel 60 */ | |
86 | CHAN5G(5320, 21), /* Channel 64 */ | |
87 | /* _We_ call this "Middle band" */ | |
88 | CHAN5G(5500, 22), /* Channel 100 */ | |
89 | CHAN5G(5520, 23), /* Channel 104 */ | |
90 | CHAN5G(5540, 24), /* Channel 108 */ | |
91 | CHAN5G(5560, 25), /* Channel 112 */ | |
92 | CHAN5G(5580, 26), /* Channel 116 */ | |
93 | CHAN5G(5600, 27), /* Channel 120 */ | |
94 | CHAN5G(5620, 28), /* Channel 124 */ | |
95 | CHAN5G(5640, 29), /* Channel 128 */ | |
96 | CHAN5G(5660, 30), /* Channel 132 */ | |
97 | CHAN5G(5680, 31), /* Channel 136 */ | |
98 | CHAN5G(5700, 32), /* Channel 140 */ | |
99 | /* _We_ call this UNII 3 */ | |
100 | CHAN5G(5745, 33), /* Channel 149 */ | |
101 | CHAN5G(5765, 34), /* Channel 153 */ | |
102 | CHAN5G(5785, 35), /* Channel 157 */ | |
103 | CHAN5G(5805, 36), /* Channel 161 */ | |
104 | CHAN5G(5825, 37), /* Channel 165 */ | |
105 | }; | |
106 | ||
ce111bad LR |
107 | static void ath_cache_conf_rate(struct ath_softc *sc, |
108 | struct ieee80211_conf *conf) | |
ff37e337 | 109 | { |
030bb495 LR |
110 | switch (conf->channel->band) { |
111 | case IEEE80211_BAND_2GHZ: | |
112 | if (conf_is_ht20(conf)) | |
113 | sc->cur_rate_table = | |
114 | sc->hw_rate_table[ATH9K_MODE_11NG_HT20]; | |
115 | else if (conf_is_ht40_minus(conf)) | |
116 | sc->cur_rate_table = | |
117 | sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS]; | |
118 | else if (conf_is_ht40_plus(conf)) | |
119 | sc->cur_rate_table = | |
120 | sc->hw_rate_table[ATH9K_MODE_11NG_HT40PLUS]; | |
96742256 | 121 | else |
030bb495 LR |
122 | sc->cur_rate_table = |
123 | sc->hw_rate_table[ATH9K_MODE_11G]; | |
030bb495 LR |
124 | break; |
125 | case IEEE80211_BAND_5GHZ: | |
126 | if (conf_is_ht20(conf)) | |
127 | sc->cur_rate_table = | |
128 | sc->hw_rate_table[ATH9K_MODE_11NA_HT20]; | |
129 | else if (conf_is_ht40_minus(conf)) | |
130 | sc->cur_rate_table = | |
131 | sc->hw_rate_table[ATH9K_MODE_11NA_HT40MINUS]; | |
132 | else if (conf_is_ht40_plus(conf)) | |
133 | sc->cur_rate_table = | |
134 | sc->hw_rate_table[ATH9K_MODE_11NA_HT40PLUS]; | |
135 | else | |
96742256 LR |
136 | sc->cur_rate_table = |
137 | sc->hw_rate_table[ATH9K_MODE_11A]; | |
030bb495 LR |
138 | break; |
139 | default: | |
ce111bad | 140 | BUG_ON(1); |
030bb495 LR |
141 | break; |
142 | } | |
ff37e337 S |
143 | } |
144 | ||
145 | static void ath_update_txpow(struct ath_softc *sc) | |
146 | { | |
cbe61d8a | 147 | struct ath_hw *ah = sc->sc_ah; |
ff37e337 S |
148 | u32 txpow; |
149 | ||
17d7904d S |
150 | if (sc->curtxpow != sc->config.txpowlimit) { |
151 | ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit); | |
ff37e337 S |
152 | /* read back in case value is clamped */ |
153 | ath9k_hw_getcapability(ah, ATH9K_CAP_TXPOW, 1, &txpow); | |
17d7904d | 154 | sc->curtxpow = txpow; |
ff37e337 S |
155 | } |
156 | } | |
157 | ||
158 | static u8 parse_mpdudensity(u8 mpdudensity) | |
159 | { | |
160 | /* | |
161 | * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": | |
162 | * 0 for no restriction | |
163 | * 1 for 1/4 us | |
164 | * 2 for 1/2 us | |
165 | * 3 for 1 us | |
166 | * 4 for 2 us | |
167 | * 5 for 4 us | |
168 | * 6 for 8 us | |
169 | * 7 for 16 us | |
170 | */ | |
171 | switch (mpdudensity) { | |
172 | case 0: | |
173 | return 0; | |
174 | case 1: | |
175 | case 2: | |
176 | case 3: | |
177 | /* Our lower layer calculations limit our precision to | |
178 | 1 microsecond */ | |
179 | return 1; | |
180 | case 4: | |
181 | return 2; | |
182 | case 5: | |
183 | return 4; | |
184 | case 6: | |
185 | return 8; | |
186 | case 7: | |
187 | return 16; | |
188 | default: | |
189 | return 0; | |
190 | } | |
191 | } | |
192 | ||
193 | static void ath_setup_rates(struct ath_softc *sc, enum ieee80211_band band) | |
194 | { | |
4f0fc7c3 | 195 | const struct ath_rate_table *rate_table = NULL; |
ff37e337 S |
196 | struct ieee80211_supported_band *sband; |
197 | struct ieee80211_rate *rate; | |
198 | int i, maxrates; | |
199 | ||
200 | switch (band) { | |
201 | case IEEE80211_BAND_2GHZ: | |
202 | rate_table = sc->hw_rate_table[ATH9K_MODE_11G]; | |
203 | break; | |
204 | case IEEE80211_BAND_5GHZ: | |
205 | rate_table = sc->hw_rate_table[ATH9K_MODE_11A]; | |
206 | break; | |
207 | default: | |
208 | break; | |
209 | } | |
210 | ||
211 | if (rate_table == NULL) | |
212 | return; | |
213 | ||
214 | sband = &sc->sbands[band]; | |
215 | rate = sc->rates[band]; | |
216 | ||
217 | if (rate_table->rate_cnt > ATH_RATE_MAX) | |
218 | maxrates = ATH_RATE_MAX; | |
219 | else | |
220 | maxrates = rate_table->rate_cnt; | |
221 | ||
222 | for (i = 0; i < maxrates; i++) { | |
223 | rate[i].bitrate = rate_table->info[i].ratekbps / 100; | |
224 | rate[i].hw_value = rate_table->info[i].ratecode; | |
f46730d1 S |
225 | if (rate_table->info[i].short_preamble) { |
226 | rate[i].hw_value_short = rate_table->info[i].ratecode | | |
227 | rate_table->info[i].short_preamble; | |
228 | rate[i].flags = IEEE80211_RATE_SHORT_PREAMBLE; | |
229 | } | |
ff37e337 | 230 | sband->n_bitrates++; |
f46730d1 | 231 | |
c46917bb LR |
232 | ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG, |
233 | "Rate: %2dMbps, ratecode: %2d\n", | |
234 | rate[i].bitrate / 10, rate[i].hw_value); | |
ff37e337 S |
235 | } |
236 | } | |
237 | ||
82880a7c VT |
238 | static struct ath9k_channel *ath_get_curchannel(struct ath_softc *sc, |
239 | struct ieee80211_hw *hw) | |
240 | { | |
241 | struct ieee80211_channel *curchan = hw->conf.channel; | |
242 | struct ath9k_channel *channel; | |
243 | u8 chan_idx; | |
244 | ||
245 | chan_idx = curchan->hw_value; | |
246 | channel = &sc->sc_ah->channels[chan_idx]; | |
247 | ath9k_update_ichannel(sc, hw, channel); | |
248 | return channel; | |
249 | } | |
250 | ||
9ecdef4b | 251 | static bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode) |
8c77a569 LR |
252 | { |
253 | unsigned long flags; | |
254 | bool ret; | |
255 | ||
9ecdef4b LR |
256 | spin_lock_irqsave(&sc->sc_pm_lock, flags); |
257 | ret = ath9k_hw_setpower(sc->sc_ah, mode); | |
258 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); | |
8c77a569 LR |
259 | |
260 | return ret; | |
261 | } | |
262 | ||
a91d75ae LR |
263 | void ath9k_ps_wakeup(struct ath_softc *sc) |
264 | { | |
265 | unsigned long flags; | |
266 | ||
267 | spin_lock_irqsave(&sc->sc_pm_lock, flags); | |
268 | if (++sc->ps_usecount != 1) | |
269 | goto unlock; | |
270 | ||
9ecdef4b | 271 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); |
a91d75ae LR |
272 | |
273 | unlock: | |
274 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); | |
275 | } | |
276 | ||
277 | void ath9k_ps_restore(struct ath_softc *sc) | |
278 | { | |
279 | unsigned long flags; | |
280 | ||
281 | spin_lock_irqsave(&sc->sc_pm_lock, flags); | |
282 | if (--sc->ps_usecount != 0) | |
283 | goto unlock; | |
284 | ||
285 | if (sc->ps_enabled && | |
286 | !(sc->sc_flags & (SC_OP_WAIT_FOR_BEACON | | |
287 | SC_OP_WAIT_FOR_CAB | | |
288 | SC_OP_WAIT_FOR_PSPOLL_DATA | | |
289 | SC_OP_WAIT_FOR_TX_ACK))) | |
9ecdef4b | 290 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); |
a91d75ae LR |
291 | |
292 | unlock: | |
293 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); | |
294 | } | |
295 | ||
ff37e337 S |
296 | /* |
297 | * Set/change channels. If the channel is really being changed, it's done | |
298 | * by reseting the chip. To accomplish this we must first cleanup any pending | |
299 | * DMA, then restart stuff. | |
300 | */ | |
0e2dedf9 JM |
301 | int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, |
302 | struct ath9k_channel *hchan) | |
ff37e337 | 303 | { |
cbe61d8a | 304 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 305 | struct ath_common *common = ath9k_hw_common(ah); |
25c56eec | 306 | struct ieee80211_conf *conf = &common->hw->conf; |
ff37e337 | 307 | bool fastcc = true, stopped; |
ae8d2858 LR |
308 | struct ieee80211_channel *channel = hw->conf.channel; |
309 | int r; | |
ff37e337 S |
310 | |
311 | if (sc->sc_flags & SC_OP_INVALID) | |
312 | return -EIO; | |
313 | ||
3cbb5dd7 VN |
314 | ath9k_ps_wakeup(sc); |
315 | ||
c0d7c7af LR |
316 | /* |
317 | * This is only performed if the channel settings have | |
318 | * actually changed. | |
319 | * | |
320 | * To switch channels clear any pending DMA operations; | |
321 | * wait long enough for the RX fifo to drain, reset the | |
322 | * hardware at the new frequency, and then re-enable | |
323 | * the relevant bits of the h/w. | |
324 | */ | |
325 | ath9k_hw_set_interrupts(ah, 0); | |
043a0405 | 326 | ath_drain_all_txq(sc, false); |
c0d7c7af | 327 | stopped = ath_stoprecv(sc); |
ff37e337 | 328 | |
c0d7c7af LR |
329 | /* XXX: do not flush receive queue here. We don't want |
330 | * to flush data frames already in queue because of | |
331 | * changing channel. */ | |
ff37e337 | 332 | |
c0d7c7af LR |
333 | if (!stopped || (sc->sc_flags & SC_OP_FULL_RESET)) |
334 | fastcc = false; | |
335 | ||
c46917bb | 336 | ath_print(common, ATH_DBG_CONFIG, |
25c56eec | 337 | "(%u MHz) -> (%u MHz), conf_is_ht40: %d\n", |
c46917bb | 338 | sc->sc_ah->curchan->channel, |
25c56eec | 339 | channel->center_freq, conf_is_ht40(conf)); |
ff37e337 | 340 | |
c0d7c7af LR |
341 | spin_lock_bh(&sc->sc_resetlock); |
342 | ||
343 | r = ath9k_hw_reset(ah, hchan, fastcc); | |
344 | if (r) { | |
c46917bb LR |
345 | ath_print(common, ATH_DBG_FATAL, |
346 | "Unable to reset channel (%u Mhz) " | |
347 | "reset status %d\n", | |
348 | channel->center_freq, r); | |
c0d7c7af | 349 | spin_unlock_bh(&sc->sc_resetlock); |
3989279c | 350 | goto ps_restore; |
ff37e337 | 351 | } |
c0d7c7af LR |
352 | spin_unlock_bh(&sc->sc_resetlock); |
353 | ||
c0d7c7af LR |
354 | sc->sc_flags &= ~SC_OP_FULL_RESET; |
355 | ||
356 | if (ath_startrecv(sc) != 0) { | |
c46917bb LR |
357 | ath_print(common, ATH_DBG_FATAL, |
358 | "Unable to restart recv logic\n"); | |
3989279c GJ |
359 | r = -EIO; |
360 | goto ps_restore; | |
c0d7c7af LR |
361 | } |
362 | ||
363 | ath_cache_conf_rate(sc, &hw->conf); | |
364 | ath_update_txpow(sc); | |
17d7904d | 365 | ath9k_hw_set_interrupts(ah, sc->imask); |
3989279c GJ |
366 | |
367 | ps_restore: | |
3cbb5dd7 | 368 | ath9k_ps_restore(sc); |
3989279c | 369 | return r; |
ff37e337 S |
370 | } |
371 | ||
372 | /* | |
373 | * This routine performs the periodic noise floor calibration function | |
374 | * that is used to adjust and optimize the chip performance. This | |
375 | * takes environmental changes (location, temperature) into account. | |
376 | * When the task is complete, it reschedules itself depending on the | |
377 | * appropriate interval that was calculated. | |
378 | */ | |
379 | static void ath_ani_calibrate(unsigned long data) | |
380 | { | |
20977d3e S |
381 | struct ath_softc *sc = (struct ath_softc *)data; |
382 | struct ath_hw *ah = sc->sc_ah; | |
c46917bb | 383 | struct ath_common *common = ath9k_hw_common(ah); |
ff37e337 S |
384 | bool longcal = false; |
385 | bool shortcal = false; | |
386 | bool aniflag = false; | |
387 | unsigned int timestamp = jiffies_to_msecs(jiffies); | |
20977d3e | 388 | u32 cal_interval, short_cal_interval; |
ff37e337 | 389 | |
20977d3e S |
390 | short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? |
391 | ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; | |
ff37e337 S |
392 | |
393 | /* | |
394 | * don't calibrate when we're scanning. | |
395 | * we are most likely not on our home channel. | |
396 | */ | |
e5f0921a | 397 | spin_lock(&sc->ani_lock); |
0c98de65 | 398 | if (sc->sc_flags & SC_OP_SCANNING) |
20977d3e | 399 | goto set_timer; |
ff37e337 | 400 | |
1ffc1c61 JM |
401 | /* Only calibrate if awake */ |
402 | if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) | |
403 | goto set_timer; | |
404 | ||
405 | ath9k_ps_wakeup(sc); | |
406 | ||
ff37e337 | 407 | /* Long calibration runs independently of short calibration. */ |
17d7904d | 408 | if ((timestamp - sc->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) { |
ff37e337 | 409 | longcal = true; |
c46917bb | 410 | ath_print(common, ATH_DBG_ANI, "longcal @%lu\n", jiffies); |
17d7904d | 411 | sc->ani.longcal_timer = timestamp; |
ff37e337 S |
412 | } |
413 | ||
17d7904d S |
414 | /* Short calibration applies only while caldone is false */ |
415 | if (!sc->ani.caldone) { | |
20977d3e | 416 | if ((timestamp - sc->ani.shortcal_timer) >= short_cal_interval) { |
ff37e337 | 417 | shortcal = true; |
c46917bb LR |
418 | ath_print(common, ATH_DBG_ANI, |
419 | "shortcal @%lu\n", jiffies); | |
17d7904d S |
420 | sc->ani.shortcal_timer = timestamp; |
421 | sc->ani.resetcal_timer = timestamp; | |
ff37e337 S |
422 | } |
423 | } else { | |
17d7904d | 424 | if ((timestamp - sc->ani.resetcal_timer) >= |
ff37e337 | 425 | ATH_RESTART_CALINTERVAL) { |
17d7904d S |
426 | sc->ani.caldone = ath9k_hw_reset_calvalid(ah); |
427 | if (sc->ani.caldone) | |
428 | sc->ani.resetcal_timer = timestamp; | |
ff37e337 S |
429 | } |
430 | } | |
431 | ||
432 | /* Verify whether we must check ANI */ | |
20977d3e | 433 | if ((timestamp - sc->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) { |
ff37e337 | 434 | aniflag = true; |
17d7904d | 435 | sc->ani.checkani_timer = timestamp; |
ff37e337 S |
436 | } |
437 | ||
438 | /* Skip all processing if there's nothing to do. */ | |
439 | if (longcal || shortcal || aniflag) { | |
440 | /* Call ANI routine if necessary */ | |
441 | if (aniflag) | |
22e66a4c | 442 | ath9k_hw_ani_monitor(ah, ah->curchan); |
ff37e337 S |
443 | |
444 | /* Perform calibration if necessary */ | |
445 | if (longcal || shortcal) { | |
43c27613 LR |
446 | sc->ani.caldone = |
447 | ath9k_hw_calibrate(ah, | |
448 | ah->curchan, | |
449 | common->rx_chainmask, | |
450 | longcal); | |
379f0440 S |
451 | |
452 | if (longcal) | |
453 | sc->ani.noise_floor = ath9k_hw_getchan_noise(ah, | |
454 | ah->curchan); | |
455 | ||
c46917bb LR |
456 | ath_print(common, ATH_DBG_ANI, |
457 | " calibrate chan %u/%x nf: %d\n", | |
458 | ah->curchan->channel, | |
459 | ah->curchan->channelFlags, | |
460 | sc->ani.noise_floor); | |
ff37e337 S |
461 | } |
462 | } | |
463 | ||
1ffc1c61 JM |
464 | ath9k_ps_restore(sc); |
465 | ||
20977d3e | 466 | set_timer: |
e5f0921a | 467 | spin_unlock(&sc->ani_lock); |
ff37e337 S |
468 | /* |
469 | * Set timer interval based on previous results. | |
470 | * The interval must be the shortest necessary to satisfy ANI, | |
471 | * short calibration and long calibration. | |
472 | */ | |
aac9207e | 473 | cal_interval = ATH_LONG_CALINTERVAL; |
2660b81a | 474 | if (sc->sc_ah->config.enable_ani) |
aac9207e | 475 | cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL); |
17d7904d | 476 | if (!sc->ani.caldone) |
20977d3e | 477 | cal_interval = min(cal_interval, (u32)short_cal_interval); |
ff37e337 | 478 | |
17d7904d | 479 | mod_timer(&sc->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); |
ff37e337 S |
480 | } |
481 | ||
415f738e S |
482 | static void ath_start_ani(struct ath_softc *sc) |
483 | { | |
484 | unsigned long timestamp = jiffies_to_msecs(jiffies); | |
485 | ||
486 | sc->ani.longcal_timer = timestamp; | |
487 | sc->ani.shortcal_timer = timestamp; | |
488 | sc->ani.checkani_timer = timestamp; | |
489 | ||
490 | mod_timer(&sc->ani.timer, | |
491 | jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); | |
492 | } | |
493 | ||
ff37e337 S |
494 | /* |
495 | * Update tx/rx chainmask. For legacy association, | |
496 | * hard code chainmask to 1x1, for 11n association, use | |
c97c92d9 VT |
497 | * the chainmask configuration, for bt coexistence, use |
498 | * the chainmask configuration even in legacy mode. | |
ff37e337 | 499 | */ |
0e2dedf9 | 500 | void ath_update_chainmask(struct ath_softc *sc, int is_ht) |
ff37e337 | 501 | { |
af03abec | 502 | struct ath_hw *ah = sc->sc_ah; |
43c27613 | 503 | struct ath_common *common = ath9k_hw_common(ah); |
af03abec | 504 | |
3d832611 | 505 | if ((sc->sc_flags & SC_OP_SCANNING) || is_ht || |
766ec4a9 | 506 | (ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE)) { |
43c27613 LR |
507 | common->tx_chainmask = ah->caps.tx_chainmask; |
508 | common->rx_chainmask = ah->caps.rx_chainmask; | |
ff37e337 | 509 | } else { |
43c27613 LR |
510 | common->tx_chainmask = 1; |
511 | common->rx_chainmask = 1; | |
ff37e337 S |
512 | } |
513 | ||
43c27613 | 514 | ath_print(common, ATH_DBG_CONFIG, |
c46917bb | 515 | "tx chmask: %d, rx chmask: %d\n", |
43c27613 LR |
516 | common->tx_chainmask, |
517 | common->rx_chainmask); | |
ff37e337 S |
518 | } |
519 | ||
520 | static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) | |
521 | { | |
522 | struct ath_node *an; | |
523 | ||
524 | an = (struct ath_node *)sta->drv_priv; | |
525 | ||
87792efc | 526 | if (sc->sc_flags & SC_OP_TXAGGR) { |
ff37e337 | 527 | ath_tx_node_init(sc, an); |
9e98ac65 | 528 | an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + |
87792efc S |
529 | sta->ht_cap.ampdu_factor); |
530 | an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density); | |
a59b5a5e | 531 | an->last_rssi = ATH_RSSI_DUMMY_MARKER; |
87792efc | 532 | } |
ff37e337 S |
533 | } |
534 | ||
535 | static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) | |
536 | { | |
537 | struct ath_node *an = (struct ath_node *)sta->drv_priv; | |
538 | ||
539 | if (sc->sc_flags & SC_OP_TXAGGR) | |
540 | ath_tx_node_cleanup(sc, an); | |
541 | } | |
542 | ||
543 | static void ath9k_tasklet(unsigned long data) | |
544 | { | |
545 | struct ath_softc *sc = (struct ath_softc *)data; | |
af03abec | 546 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 547 | struct ath_common *common = ath9k_hw_common(ah); |
af03abec | 548 | |
17d7904d | 549 | u32 status = sc->intrstatus; |
ff37e337 | 550 | |
153e080d VT |
551 | ath9k_ps_wakeup(sc); |
552 | ||
ff37e337 | 553 | if (status & ATH9K_INT_FATAL) { |
ff37e337 | 554 | ath_reset(sc, false); |
153e080d | 555 | ath9k_ps_restore(sc); |
ff37e337 | 556 | return; |
063d8be3 | 557 | } |
ff37e337 | 558 | |
063d8be3 S |
559 | if (status & (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN)) { |
560 | spin_lock_bh(&sc->rx.rxflushlock); | |
561 | ath_rx_tasklet(sc, 0); | |
562 | spin_unlock_bh(&sc->rx.rxflushlock); | |
ff37e337 S |
563 | } |
564 | ||
063d8be3 S |
565 | if (status & ATH9K_INT_TX) |
566 | ath_tx_tasklet(sc); | |
567 | ||
96148326 | 568 | if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) { |
54ce846e JM |
569 | /* |
570 | * TSF sync does not look correct; remain awake to sync with | |
571 | * the next Beacon. | |
572 | */ | |
c46917bb LR |
573 | ath_print(common, ATH_DBG_PS, |
574 | "TSFOOR - Sync with next Beacon\n"); | |
ccdfeab6 | 575 | sc->sc_flags |= SC_OP_WAIT_FOR_BEACON | SC_OP_BEACON_SYNC; |
54ce846e JM |
576 | } |
577 | ||
766ec4a9 | 578 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
ebb8e1d7 VT |
579 | if (status & ATH9K_INT_GENTIMER) |
580 | ath_gen_timer_isr(sc->sc_ah); | |
581 | ||
ff37e337 | 582 | /* re-enable hardware interrupt */ |
af03abec | 583 | ath9k_hw_set_interrupts(ah, sc->imask); |
153e080d | 584 | ath9k_ps_restore(sc); |
ff37e337 S |
585 | } |
586 | ||
6baff7f9 | 587 | irqreturn_t ath_isr(int irq, void *dev) |
ff37e337 | 588 | { |
063d8be3 S |
589 | #define SCHED_INTR ( \ |
590 | ATH9K_INT_FATAL | \ | |
591 | ATH9K_INT_RXORN | \ | |
592 | ATH9K_INT_RXEOL | \ | |
593 | ATH9K_INT_RX | \ | |
594 | ATH9K_INT_TX | \ | |
595 | ATH9K_INT_BMISS | \ | |
596 | ATH9K_INT_CST | \ | |
ebb8e1d7 VT |
597 | ATH9K_INT_TSFOOR | \ |
598 | ATH9K_INT_GENTIMER) | |
063d8be3 | 599 | |
ff37e337 | 600 | struct ath_softc *sc = dev; |
cbe61d8a | 601 | struct ath_hw *ah = sc->sc_ah; |
ff37e337 S |
602 | enum ath9k_int status; |
603 | bool sched = false; | |
604 | ||
063d8be3 S |
605 | /* |
606 | * The hardware is not ready/present, don't | |
607 | * touch anything. Note this can happen early | |
608 | * on if the IRQ is shared. | |
609 | */ | |
610 | if (sc->sc_flags & SC_OP_INVALID) | |
611 | return IRQ_NONE; | |
ff37e337 | 612 | |
063d8be3 S |
613 | |
614 | /* shared irq, not for us */ | |
615 | ||
153e080d | 616 | if (!ath9k_hw_intrpend(ah)) |
063d8be3 | 617 | return IRQ_NONE; |
063d8be3 S |
618 | |
619 | /* | |
620 | * Figure out the reason(s) for the interrupt. Note | |
621 | * that the hal returns a pseudo-ISR that may include | |
622 | * bits we haven't explicitly enabled so we mask the | |
623 | * value to insure we only process bits we requested. | |
624 | */ | |
625 | ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ | |
626 | status &= sc->imask; /* discard unasked-for bits */ | |
ff37e337 | 627 | |
063d8be3 S |
628 | /* |
629 | * If there are no status bits set, then this interrupt was not | |
630 | * for me (should have been caught above). | |
631 | */ | |
153e080d | 632 | if (!status) |
063d8be3 | 633 | return IRQ_NONE; |
ff37e337 | 634 | |
063d8be3 S |
635 | /* Cache the status */ |
636 | sc->intrstatus = status; | |
637 | ||
638 | if (status & SCHED_INTR) | |
639 | sched = true; | |
640 | ||
641 | /* | |
642 | * If a FATAL or RXORN interrupt is received, we have to reset the | |
643 | * chip immediately. | |
644 | */ | |
645 | if (status & (ATH9K_INT_FATAL | ATH9K_INT_RXORN)) | |
646 | goto chip_reset; | |
647 | ||
648 | if (status & ATH9K_INT_SWBA) | |
649 | tasklet_schedule(&sc->bcon_tasklet); | |
650 | ||
651 | if (status & ATH9K_INT_TXURN) | |
652 | ath9k_hw_updatetxtriglevel(ah, true); | |
653 | ||
654 | if (status & ATH9K_INT_MIB) { | |
ff37e337 | 655 | /* |
063d8be3 S |
656 | * Disable interrupts until we service the MIB |
657 | * interrupt; otherwise it will continue to | |
658 | * fire. | |
ff37e337 | 659 | */ |
063d8be3 S |
660 | ath9k_hw_set_interrupts(ah, 0); |
661 | /* | |
662 | * Let the hal handle the event. We assume | |
663 | * it will clear whatever condition caused | |
664 | * the interrupt. | |
665 | */ | |
22e66a4c | 666 | ath9k_hw_procmibevent(ah); |
063d8be3 S |
667 | ath9k_hw_set_interrupts(ah, sc->imask); |
668 | } | |
ff37e337 | 669 | |
153e080d VT |
670 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
671 | if (status & ATH9K_INT_TIM_TIMER) { | |
063d8be3 S |
672 | /* Clear RxAbort bit so that we can |
673 | * receive frames */ | |
9ecdef4b | 674 | ath9k_setpower(sc, ATH9K_PM_AWAKE); |
153e080d | 675 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
063d8be3 | 676 | sc->sc_flags |= SC_OP_WAIT_FOR_BEACON; |
ff37e337 | 677 | } |
063d8be3 S |
678 | |
679 | chip_reset: | |
ff37e337 | 680 | |
817e11de S |
681 | ath_debug_stat_interrupt(sc, status); |
682 | ||
ff37e337 S |
683 | if (sched) { |
684 | /* turn off every interrupt except SWBA */ | |
17d7904d | 685 | ath9k_hw_set_interrupts(ah, (sc->imask & ATH9K_INT_SWBA)); |
ff37e337 S |
686 | tasklet_schedule(&sc->intr_tq); |
687 | } | |
688 | ||
689 | return IRQ_HANDLED; | |
063d8be3 S |
690 | |
691 | #undef SCHED_INTR | |
ff37e337 S |
692 | } |
693 | ||
f078f209 | 694 | static u32 ath_get_extchanmode(struct ath_softc *sc, |
99405f93 | 695 | struct ieee80211_channel *chan, |
094d05dc | 696 | enum nl80211_channel_type channel_type) |
f078f209 LR |
697 | { |
698 | u32 chanmode = 0; | |
f078f209 LR |
699 | |
700 | switch (chan->band) { | |
701 | case IEEE80211_BAND_2GHZ: | |
094d05dc S |
702 | switch(channel_type) { |
703 | case NL80211_CHAN_NO_HT: | |
704 | case NL80211_CHAN_HT20: | |
f078f209 | 705 | chanmode = CHANNEL_G_HT20; |
094d05dc S |
706 | break; |
707 | case NL80211_CHAN_HT40PLUS: | |
f078f209 | 708 | chanmode = CHANNEL_G_HT40PLUS; |
094d05dc S |
709 | break; |
710 | case NL80211_CHAN_HT40MINUS: | |
f078f209 | 711 | chanmode = CHANNEL_G_HT40MINUS; |
094d05dc S |
712 | break; |
713 | } | |
f078f209 LR |
714 | break; |
715 | case IEEE80211_BAND_5GHZ: | |
094d05dc S |
716 | switch(channel_type) { |
717 | case NL80211_CHAN_NO_HT: | |
718 | case NL80211_CHAN_HT20: | |
f078f209 | 719 | chanmode = CHANNEL_A_HT20; |
094d05dc S |
720 | break; |
721 | case NL80211_CHAN_HT40PLUS: | |
f078f209 | 722 | chanmode = CHANNEL_A_HT40PLUS; |
094d05dc S |
723 | break; |
724 | case NL80211_CHAN_HT40MINUS: | |
f078f209 | 725 | chanmode = CHANNEL_A_HT40MINUS; |
094d05dc S |
726 | break; |
727 | } | |
f078f209 LR |
728 | break; |
729 | default: | |
730 | break; | |
731 | } | |
732 | ||
733 | return chanmode; | |
734 | } | |
735 | ||
6ace2891 | 736 | static int ath_setkey_tkip(struct ath_softc *sc, u16 keyix, const u8 *key, |
3f53dd64 JM |
737 | struct ath9k_keyval *hk, const u8 *addr, |
738 | bool authenticator) | |
f078f209 | 739 | { |
6ace2891 JM |
740 | const u8 *key_rxmic; |
741 | const u8 *key_txmic; | |
f078f209 | 742 | |
6ace2891 JM |
743 | key_txmic = key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY; |
744 | key_rxmic = key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY; | |
f078f209 LR |
745 | |
746 | if (addr == NULL) { | |
d216aaa6 JM |
747 | /* |
748 | * Group key installation - only two key cache entries are used | |
749 | * regardless of splitmic capability since group key is only | |
750 | * used either for TX or RX. | |
751 | */ | |
3f53dd64 JM |
752 | if (authenticator) { |
753 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); | |
754 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_mic)); | |
755 | } else { | |
756 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); | |
757 | memcpy(hk->kv_txmic, key_rxmic, sizeof(hk->kv_mic)); | |
758 | } | |
d216aaa6 | 759 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr); |
f078f209 | 760 | } |
17d7904d | 761 | if (!sc->splitmic) { |
d216aaa6 | 762 | /* TX and RX keys share the same key cache entry. */ |
f078f209 LR |
763 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); |
764 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic)); | |
d216aaa6 | 765 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr); |
f078f209 | 766 | } |
d216aaa6 JM |
767 | |
768 | /* Separate key cache entries for TX and RX */ | |
769 | ||
770 | /* TX key goes at first index, RX key at +32. */ | |
f078f209 | 771 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); |
d216aaa6 JM |
772 | if (!ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, NULL)) { |
773 | /* TX MIC entry failed. No need to proceed further */ | |
c46917bb LR |
774 | ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, |
775 | "Setting TX MIC Key Failed\n"); | |
f078f209 LR |
776 | return 0; |
777 | } | |
778 | ||
779 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); | |
780 | /* XXX delete tx key on failure? */ | |
d216aaa6 | 781 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix + 32, hk, addr); |
6ace2891 JM |
782 | } |
783 | ||
784 | static int ath_reserve_key_cache_slot_tkip(struct ath_softc *sc) | |
785 | { | |
786 | int i; | |
787 | ||
17d7904d S |
788 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { |
789 | if (test_bit(i, sc->keymap) || | |
790 | test_bit(i + 64, sc->keymap)) | |
6ace2891 | 791 | continue; /* At least one part of TKIP key allocated */ |
17d7904d S |
792 | if (sc->splitmic && |
793 | (test_bit(i + 32, sc->keymap) || | |
794 | test_bit(i + 64 + 32, sc->keymap))) | |
6ace2891 JM |
795 | continue; /* At least one part of TKIP key allocated */ |
796 | ||
797 | /* Found a free slot for a TKIP key */ | |
798 | return i; | |
799 | } | |
800 | return -1; | |
801 | } | |
802 | ||
803 | static int ath_reserve_key_cache_slot(struct ath_softc *sc) | |
804 | { | |
805 | int i; | |
806 | ||
807 | /* First, try to find slots that would not be available for TKIP. */ | |
17d7904d S |
808 | if (sc->splitmic) { |
809 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 4; i++) { | |
810 | if (!test_bit(i, sc->keymap) && | |
811 | (test_bit(i + 32, sc->keymap) || | |
812 | test_bit(i + 64, sc->keymap) || | |
813 | test_bit(i + 64 + 32, sc->keymap))) | |
6ace2891 | 814 | return i; |
17d7904d S |
815 | if (!test_bit(i + 32, sc->keymap) && |
816 | (test_bit(i, sc->keymap) || | |
817 | test_bit(i + 64, sc->keymap) || | |
818 | test_bit(i + 64 + 32, sc->keymap))) | |
6ace2891 | 819 | return i + 32; |
17d7904d S |
820 | if (!test_bit(i + 64, sc->keymap) && |
821 | (test_bit(i , sc->keymap) || | |
822 | test_bit(i + 32, sc->keymap) || | |
823 | test_bit(i + 64 + 32, sc->keymap))) | |
ea612132 | 824 | return i + 64; |
17d7904d S |
825 | if (!test_bit(i + 64 + 32, sc->keymap) && |
826 | (test_bit(i, sc->keymap) || | |
827 | test_bit(i + 32, sc->keymap) || | |
828 | test_bit(i + 64, sc->keymap))) | |
ea612132 | 829 | return i + 64 + 32; |
6ace2891 JM |
830 | } |
831 | } else { | |
17d7904d S |
832 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { |
833 | if (!test_bit(i, sc->keymap) && | |
834 | test_bit(i + 64, sc->keymap)) | |
6ace2891 | 835 | return i; |
17d7904d S |
836 | if (test_bit(i, sc->keymap) && |
837 | !test_bit(i + 64, sc->keymap)) | |
6ace2891 JM |
838 | return i + 64; |
839 | } | |
840 | } | |
841 | ||
842 | /* No partially used TKIP slots, pick any available slot */ | |
17d7904d | 843 | for (i = IEEE80211_WEP_NKID; i < sc->keymax; i++) { |
be2864cf JM |
844 | /* Do not allow slots that could be needed for TKIP group keys |
845 | * to be used. This limitation could be removed if we know that | |
846 | * TKIP will not be used. */ | |
847 | if (i >= 64 && i < 64 + IEEE80211_WEP_NKID) | |
848 | continue; | |
17d7904d | 849 | if (sc->splitmic) { |
be2864cf JM |
850 | if (i >= 32 && i < 32 + IEEE80211_WEP_NKID) |
851 | continue; | |
852 | if (i >= 64 + 32 && i < 64 + 32 + IEEE80211_WEP_NKID) | |
853 | continue; | |
854 | } | |
855 | ||
17d7904d | 856 | if (!test_bit(i, sc->keymap)) |
6ace2891 JM |
857 | return i; /* Found a free slot for a key */ |
858 | } | |
859 | ||
860 | /* No free slot found */ | |
861 | return -1; | |
f078f209 LR |
862 | } |
863 | ||
864 | static int ath_key_config(struct ath_softc *sc, | |
3f53dd64 | 865 | struct ieee80211_vif *vif, |
dc822b5d | 866 | struct ieee80211_sta *sta, |
f078f209 LR |
867 | struct ieee80211_key_conf *key) |
868 | { | |
f078f209 LR |
869 | struct ath9k_keyval hk; |
870 | const u8 *mac = NULL; | |
871 | int ret = 0; | |
6ace2891 | 872 | int idx; |
f078f209 LR |
873 | |
874 | memset(&hk, 0, sizeof(hk)); | |
875 | ||
876 | switch (key->alg) { | |
877 | case ALG_WEP: | |
878 | hk.kv_type = ATH9K_CIPHER_WEP; | |
879 | break; | |
880 | case ALG_TKIP: | |
881 | hk.kv_type = ATH9K_CIPHER_TKIP; | |
882 | break; | |
883 | case ALG_CCMP: | |
884 | hk.kv_type = ATH9K_CIPHER_AES_CCM; | |
885 | break; | |
886 | default: | |
ca470b29 | 887 | return -EOPNOTSUPP; |
f078f209 LR |
888 | } |
889 | ||
6ace2891 | 890 | hk.kv_len = key->keylen; |
f078f209 LR |
891 | memcpy(hk.kv_val, key->key, key->keylen); |
892 | ||
6ace2891 JM |
893 | if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { |
894 | /* For now, use the default keys for broadcast keys. This may | |
895 | * need to change with virtual interfaces. */ | |
896 | idx = key->keyidx; | |
897 | } else if (key->keyidx) { | |
dc822b5d JB |
898 | if (WARN_ON(!sta)) |
899 | return -EOPNOTSUPP; | |
900 | mac = sta->addr; | |
901 | ||
6ace2891 JM |
902 | if (vif->type != NL80211_IFTYPE_AP) { |
903 | /* Only keyidx 0 should be used with unicast key, but | |
904 | * allow this for client mode for now. */ | |
905 | idx = key->keyidx; | |
906 | } else | |
907 | return -EIO; | |
f078f209 | 908 | } else { |
dc822b5d JB |
909 | if (WARN_ON(!sta)) |
910 | return -EOPNOTSUPP; | |
911 | mac = sta->addr; | |
912 | ||
6ace2891 JM |
913 | if (key->alg == ALG_TKIP) |
914 | idx = ath_reserve_key_cache_slot_tkip(sc); | |
915 | else | |
916 | idx = ath_reserve_key_cache_slot(sc); | |
917 | if (idx < 0) | |
ca470b29 | 918 | return -ENOSPC; /* no free key cache entries */ |
f078f209 LR |
919 | } |
920 | ||
921 | if (key->alg == ALG_TKIP) | |
3f53dd64 JM |
922 | ret = ath_setkey_tkip(sc, idx, key->key, &hk, mac, |
923 | vif->type == NL80211_IFTYPE_AP); | |
f078f209 | 924 | else |
d216aaa6 | 925 | ret = ath9k_hw_set_keycache_entry(sc->sc_ah, idx, &hk, mac); |
f078f209 LR |
926 | |
927 | if (!ret) | |
928 | return -EIO; | |
929 | ||
17d7904d | 930 | set_bit(idx, sc->keymap); |
6ace2891 | 931 | if (key->alg == ALG_TKIP) { |
17d7904d S |
932 | set_bit(idx + 64, sc->keymap); |
933 | if (sc->splitmic) { | |
934 | set_bit(idx + 32, sc->keymap); | |
935 | set_bit(idx + 64 + 32, sc->keymap); | |
6ace2891 JM |
936 | } |
937 | } | |
938 | ||
939 | return idx; | |
f078f209 LR |
940 | } |
941 | ||
942 | static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key) | |
943 | { | |
6ace2891 JM |
944 | ath9k_hw_keyreset(sc->sc_ah, key->hw_key_idx); |
945 | if (key->hw_key_idx < IEEE80211_WEP_NKID) | |
946 | return; | |
947 | ||
17d7904d | 948 | clear_bit(key->hw_key_idx, sc->keymap); |
6ace2891 JM |
949 | if (key->alg != ALG_TKIP) |
950 | return; | |
f078f209 | 951 | |
17d7904d S |
952 | clear_bit(key->hw_key_idx + 64, sc->keymap); |
953 | if (sc->splitmic) { | |
954 | clear_bit(key->hw_key_idx + 32, sc->keymap); | |
955 | clear_bit(key->hw_key_idx + 64 + 32, sc->keymap); | |
6ace2891 | 956 | } |
f078f209 LR |
957 | } |
958 | ||
eb2599ca S |
959 | static void setup_ht_cap(struct ath_softc *sc, |
960 | struct ieee80211_sta_ht_cap *ht_info) | |
f078f209 | 961 | { |
43c27613 | 962 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
140add21 | 963 | u8 tx_streams, rx_streams; |
f078f209 | 964 | |
d9fe60de JB |
965 | ht_info->ht_supported = true; |
966 | ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
967 | IEEE80211_HT_CAP_SM_PS | | |
968 | IEEE80211_HT_CAP_SGI_40 | | |
969 | IEEE80211_HT_CAP_DSSSCCK40; | |
f078f209 | 970 | |
9e98ac65 S |
971 | ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; |
972 | ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8; | |
eb2599ca | 973 | |
d9fe60de JB |
974 | /* set up supported mcs set */ |
975 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); | |
43c27613 LR |
976 | tx_streams = !(common->tx_chainmask & (common->tx_chainmask - 1)) ? |
977 | 1 : 2; | |
978 | rx_streams = !(common->rx_chainmask & (common->rx_chainmask - 1)) ? | |
979 | 1 : 2; | |
140add21 SB |
980 | |
981 | if (tx_streams != rx_streams) { | |
43c27613 | 982 | ath_print(common, ATH_DBG_CONFIG, |
c46917bb LR |
983 | "TX streams %d, RX streams: %d\n", |
984 | tx_streams, rx_streams); | |
140add21 SB |
985 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; |
986 | ht_info->mcs.tx_params |= ((tx_streams - 1) << | |
987 | IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); | |
988 | } | |
eb2599ca | 989 | |
140add21 SB |
990 | ht_info->mcs.rx_mask[0] = 0xff; |
991 | if (rx_streams >= 2) | |
eb2599ca | 992 | ht_info->mcs.rx_mask[1] = 0xff; |
eb2599ca | 993 | |
140add21 | 994 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED; |
f078f209 LR |
995 | } |
996 | ||
8feceb67 | 997 | static void ath9k_bss_assoc_info(struct ath_softc *sc, |
5640b08e | 998 | struct ieee80211_vif *vif, |
8feceb67 | 999 | struct ieee80211_bss_conf *bss_conf) |
f078f209 | 1000 | { |
f2b2143e | 1001 | struct ath_hw *ah = sc->sc_ah; |
1510718d | 1002 | struct ath_common *common = ath9k_hw_common(ah); |
f078f209 | 1003 | |
8feceb67 | 1004 | if (bss_conf->assoc) { |
c46917bb LR |
1005 | ath_print(common, ATH_DBG_CONFIG, |
1006 | "Bss Info ASSOC %d, bssid: %pM\n", | |
1007 | bss_conf->aid, common->curbssid); | |
f078f209 | 1008 | |
8feceb67 | 1009 | /* New association, store aid */ |
1510718d | 1010 | common->curaid = bss_conf->aid; |
f2b2143e | 1011 | ath9k_hw_write_associd(ah); |
2664f201 SB |
1012 | |
1013 | /* | |
1014 | * Request a re-configuration of Beacon related timers | |
1015 | * on the receipt of the first Beacon frame (i.e., | |
1016 | * after time sync with the AP). | |
1017 | */ | |
1018 | sc->sc_flags |= SC_OP_BEACON_SYNC; | |
f078f209 | 1019 | |
8feceb67 | 1020 | /* Configure the beacon */ |
2c3db3d5 | 1021 | ath_beacon_config(sc, vif); |
f078f209 | 1022 | |
8feceb67 | 1023 | /* Reset rssi stats */ |
22e66a4c | 1024 | sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; |
f078f209 | 1025 | |
415f738e | 1026 | ath_start_ani(sc); |
8feceb67 | 1027 | } else { |
c46917bb | 1028 | ath_print(common, ATH_DBG_CONFIG, "Bss Info DISASSOC\n"); |
1510718d | 1029 | common->curaid = 0; |
f38faa31 SB |
1030 | /* Stop ANI */ |
1031 | del_timer_sync(&sc->ani.timer); | |
f078f209 | 1032 | } |
8feceb67 | 1033 | } |
f078f209 | 1034 | |
8feceb67 VT |
1035 | /********************************/ |
1036 | /* LED functions */ | |
1037 | /********************************/ | |
f078f209 | 1038 | |
f2bffa7e VT |
1039 | static void ath_led_blink_work(struct work_struct *work) |
1040 | { | |
1041 | struct ath_softc *sc = container_of(work, struct ath_softc, | |
1042 | ath_led_blink_work.work); | |
1043 | ||
1044 | if (!(sc->sc_flags & SC_OP_LED_ASSOCIATED)) | |
1045 | return; | |
85067c06 VT |
1046 | |
1047 | if ((sc->led_on_duration == ATH_LED_ON_DURATION_IDLE) || | |
1048 | (sc->led_off_duration == ATH_LED_OFF_DURATION_IDLE)) | |
08fc5c1b | 1049 | ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0); |
85067c06 | 1050 | else |
08fc5c1b | 1051 | ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, |
85067c06 | 1052 | (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0); |
f2bffa7e | 1053 | |
42935eca LR |
1054 | ieee80211_queue_delayed_work(sc->hw, |
1055 | &sc->ath_led_blink_work, | |
1056 | (sc->sc_flags & SC_OP_LED_ON) ? | |
1057 | msecs_to_jiffies(sc->led_off_duration) : | |
1058 | msecs_to_jiffies(sc->led_on_duration)); | |
f2bffa7e | 1059 | |
85067c06 VT |
1060 | sc->led_on_duration = sc->led_on_cnt ? |
1061 | max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25) : | |
1062 | ATH_LED_ON_DURATION_IDLE; | |
1063 | sc->led_off_duration = sc->led_off_cnt ? | |
1064 | max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10) : | |
1065 | ATH_LED_OFF_DURATION_IDLE; | |
f2bffa7e VT |
1066 | sc->led_on_cnt = sc->led_off_cnt = 0; |
1067 | if (sc->sc_flags & SC_OP_LED_ON) | |
1068 | sc->sc_flags &= ~SC_OP_LED_ON; | |
1069 | else | |
1070 | sc->sc_flags |= SC_OP_LED_ON; | |
1071 | } | |
1072 | ||
8feceb67 VT |
1073 | static void ath_led_brightness(struct led_classdev *led_cdev, |
1074 | enum led_brightness brightness) | |
1075 | { | |
1076 | struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev); | |
1077 | struct ath_softc *sc = led->sc; | |
f078f209 | 1078 | |
8feceb67 VT |
1079 | switch (brightness) { |
1080 | case LED_OFF: | |
1081 | if (led->led_type == ATH_LED_ASSOC || | |
f2bffa7e | 1082 | led->led_type == ATH_LED_RADIO) { |
08fc5c1b | 1083 | ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, |
f2bffa7e | 1084 | (led->led_type == ATH_LED_RADIO)); |
8feceb67 | 1085 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; |
f2bffa7e VT |
1086 | if (led->led_type == ATH_LED_RADIO) |
1087 | sc->sc_flags &= ~SC_OP_LED_ON; | |
1088 | } else { | |
1089 | sc->led_off_cnt++; | |
1090 | } | |
8feceb67 VT |
1091 | break; |
1092 | case LED_FULL: | |
f2bffa7e | 1093 | if (led->led_type == ATH_LED_ASSOC) { |
8feceb67 | 1094 | sc->sc_flags |= SC_OP_LED_ASSOCIATED; |
42935eca LR |
1095 | ieee80211_queue_delayed_work(sc->hw, |
1096 | &sc->ath_led_blink_work, 0); | |
f2bffa7e | 1097 | } else if (led->led_type == ATH_LED_RADIO) { |
08fc5c1b | 1098 | ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0); |
f2bffa7e VT |
1099 | sc->sc_flags |= SC_OP_LED_ON; |
1100 | } else { | |
1101 | sc->led_on_cnt++; | |
1102 | } | |
8feceb67 VT |
1103 | break; |
1104 | default: | |
1105 | break; | |
f078f209 | 1106 | } |
8feceb67 | 1107 | } |
f078f209 | 1108 | |
8feceb67 VT |
1109 | static int ath_register_led(struct ath_softc *sc, struct ath_led *led, |
1110 | char *trigger) | |
1111 | { | |
1112 | int ret; | |
f078f209 | 1113 | |
8feceb67 VT |
1114 | led->sc = sc; |
1115 | led->led_cdev.name = led->name; | |
1116 | led->led_cdev.default_trigger = trigger; | |
1117 | led->led_cdev.brightness_set = ath_led_brightness; | |
f078f209 | 1118 | |
8feceb67 VT |
1119 | ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev); |
1120 | if (ret) | |
c46917bb LR |
1121 | ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, |
1122 | "Failed to register led:%s", led->name); | |
8feceb67 VT |
1123 | else |
1124 | led->registered = 1; | |
1125 | return ret; | |
1126 | } | |
f078f209 | 1127 | |
8feceb67 VT |
1128 | static void ath_unregister_led(struct ath_led *led) |
1129 | { | |
1130 | if (led->registered) { | |
1131 | led_classdev_unregister(&led->led_cdev); | |
1132 | led->registered = 0; | |
f078f209 | 1133 | } |
f078f209 LR |
1134 | } |
1135 | ||
8feceb67 | 1136 | static void ath_deinit_leds(struct ath_softc *sc) |
f078f209 | 1137 | { |
8feceb67 VT |
1138 | ath_unregister_led(&sc->assoc_led); |
1139 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; | |
1140 | ath_unregister_led(&sc->tx_led); | |
1141 | ath_unregister_led(&sc->rx_led); | |
1142 | ath_unregister_led(&sc->radio_led); | |
08fc5c1b | 1143 | ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1); |
8feceb67 | 1144 | } |
f078f209 | 1145 | |
8feceb67 VT |
1146 | static void ath_init_leds(struct ath_softc *sc) |
1147 | { | |
1148 | char *trigger; | |
1149 | int ret; | |
f078f209 | 1150 | |
08fc5c1b VN |
1151 | if (AR_SREV_9287(sc->sc_ah)) |
1152 | sc->sc_ah->led_pin = ATH_LED_PIN_9287; | |
1153 | else | |
1154 | sc->sc_ah->led_pin = ATH_LED_PIN_DEF; | |
1155 | ||
8feceb67 | 1156 | /* Configure gpio 1 for output */ |
08fc5c1b | 1157 | ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin, |
8feceb67 VT |
1158 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
1159 | /* LED off, active low */ | |
08fc5c1b | 1160 | ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1); |
7dcfdcd9 | 1161 | |
f2bffa7e VT |
1162 | INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work); |
1163 | ||
8feceb67 VT |
1164 | trigger = ieee80211_get_radio_led_name(sc->hw); |
1165 | snprintf(sc->radio_led.name, sizeof(sc->radio_led.name), | |
0818cb8a | 1166 | "ath9k-%s::radio", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1167 | ret = ath_register_led(sc, &sc->radio_led, trigger); |
1168 | sc->radio_led.led_type = ATH_LED_RADIO; | |
1169 | if (ret) | |
1170 | goto fail; | |
7dcfdcd9 | 1171 | |
8feceb67 VT |
1172 | trigger = ieee80211_get_assoc_led_name(sc->hw); |
1173 | snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name), | |
0818cb8a | 1174 | "ath9k-%s::assoc", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1175 | ret = ath_register_led(sc, &sc->assoc_led, trigger); |
1176 | sc->assoc_led.led_type = ATH_LED_ASSOC; | |
1177 | if (ret) | |
1178 | goto fail; | |
f078f209 | 1179 | |
8feceb67 VT |
1180 | trigger = ieee80211_get_tx_led_name(sc->hw); |
1181 | snprintf(sc->tx_led.name, sizeof(sc->tx_led.name), | |
0818cb8a | 1182 | "ath9k-%s::tx", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1183 | ret = ath_register_led(sc, &sc->tx_led, trigger); |
1184 | sc->tx_led.led_type = ATH_LED_TX; | |
1185 | if (ret) | |
1186 | goto fail; | |
f078f209 | 1187 | |
8feceb67 VT |
1188 | trigger = ieee80211_get_rx_led_name(sc->hw); |
1189 | snprintf(sc->rx_led.name, sizeof(sc->rx_led.name), | |
0818cb8a | 1190 | "ath9k-%s::rx", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1191 | ret = ath_register_led(sc, &sc->rx_led, trigger); |
1192 | sc->rx_led.led_type = ATH_LED_RX; | |
1193 | if (ret) | |
1194 | goto fail; | |
f078f209 | 1195 | |
8feceb67 VT |
1196 | return; |
1197 | ||
1198 | fail: | |
35c95ab9 | 1199 | cancel_delayed_work_sync(&sc->ath_led_blink_work); |
8feceb67 | 1200 | ath_deinit_leds(sc); |
f078f209 LR |
1201 | } |
1202 | ||
7ec3e514 | 1203 | void ath_radio_enable(struct ath_softc *sc) |
500c064d | 1204 | { |
cbe61d8a | 1205 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 1206 | struct ath_common *common = ath9k_hw_common(ah); |
ae8d2858 LR |
1207 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
1208 | int r; | |
500c064d | 1209 | |
3cbb5dd7 | 1210 | ath9k_ps_wakeup(sc); |
93b1b37f | 1211 | ath9k_hw_configpcipowersave(ah, 0, 0); |
ae8d2858 | 1212 | |
159cd468 VT |
1213 | if (!ah->curchan) |
1214 | ah->curchan = ath_get_curchannel(sc, sc->hw); | |
1215 | ||
d2f5b3a6 | 1216 | spin_lock_bh(&sc->sc_resetlock); |
2660b81a | 1217 | r = ath9k_hw_reset(ah, ah->curchan, false); |
ae8d2858 | 1218 | if (r) { |
c46917bb LR |
1219 | ath_print(common, ATH_DBG_FATAL, |
1220 | "Unable to reset channel %u (%uMhz) ", | |
1221 | "reset status %d\n", | |
1222 | channel->center_freq, r); | |
500c064d VT |
1223 | } |
1224 | spin_unlock_bh(&sc->sc_resetlock); | |
1225 | ||
1226 | ath_update_txpow(sc); | |
1227 | if (ath_startrecv(sc) != 0) { | |
c46917bb LR |
1228 | ath_print(common, ATH_DBG_FATAL, |
1229 | "Unable to restart recv logic\n"); | |
500c064d VT |
1230 | return; |
1231 | } | |
1232 | ||
1233 | if (sc->sc_flags & SC_OP_BEACONS) | |
2c3db3d5 | 1234 | ath_beacon_config(sc, NULL); /* restart beacons */ |
500c064d VT |
1235 | |
1236 | /* Re-Enable interrupts */ | |
17d7904d | 1237 | ath9k_hw_set_interrupts(ah, sc->imask); |
500c064d VT |
1238 | |
1239 | /* Enable LED */ | |
08fc5c1b | 1240 | ath9k_hw_cfg_output(ah, ah->led_pin, |
500c064d | 1241 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
08fc5c1b | 1242 | ath9k_hw_set_gpio(ah, ah->led_pin, 0); |
500c064d VT |
1243 | |
1244 | ieee80211_wake_queues(sc->hw); | |
3cbb5dd7 | 1245 | ath9k_ps_restore(sc); |
500c064d VT |
1246 | } |
1247 | ||
7ec3e514 | 1248 | void ath_radio_disable(struct ath_softc *sc) |
500c064d | 1249 | { |
cbe61d8a | 1250 | struct ath_hw *ah = sc->sc_ah; |
ae8d2858 LR |
1251 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
1252 | int r; | |
500c064d | 1253 | |
3cbb5dd7 | 1254 | ath9k_ps_wakeup(sc); |
500c064d VT |
1255 | ieee80211_stop_queues(sc->hw); |
1256 | ||
1257 | /* Disable LED */ | |
08fc5c1b VN |
1258 | ath9k_hw_set_gpio(ah, ah->led_pin, 1); |
1259 | ath9k_hw_cfg_gpio_input(ah, ah->led_pin); | |
500c064d VT |
1260 | |
1261 | /* Disable interrupts */ | |
1262 | ath9k_hw_set_interrupts(ah, 0); | |
1263 | ||
043a0405 | 1264 | ath_drain_all_txq(sc, false); /* clear pending tx frames */ |
500c064d VT |
1265 | ath_stoprecv(sc); /* turn off frame recv */ |
1266 | ath_flushrecv(sc); /* flush recv queue */ | |
1267 | ||
159cd468 VT |
1268 | if (!ah->curchan) |
1269 | ah->curchan = ath_get_curchannel(sc, sc->hw); | |
1270 | ||
500c064d | 1271 | spin_lock_bh(&sc->sc_resetlock); |
2660b81a | 1272 | r = ath9k_hw_reset(ah, ah->curchan, false); |
ae8d2858 | 1273 | if (r) { |
c46917bb LR |
1274 | ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, |
1275 | "Unable to reset channel %u (%uMhz) " | |
1276 | "reset status %d\n", | |
1277 | channel->center_freq, r); | |
500c064d VT |
1278 | } |
1279 | spin_unlock_bh(&sc->sc_resetlock); | |
1280 | ||
1281 | ath9k_hw_phy_disable(ah); | |
93b1b37f | 1282 | ath9k_hw_configpcipowersave(ah, 1, 1); |
3cbb5dd7 | 1283 | ath9k_ps_restore(sc); |
9ecdef4b | 1284 | ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP); |
500c064d VT |
1285 | } |
1286 | ||
5077fd35 GJ |
1287 | /*******************/ |
1288 | /* Rfkill */ | |
1289 | /*******************/ | |
1290 | ||
500c064d VT |
1291 | static bool ath_is_rfkill_set(struct ath_softc *sc) |
1292 | { | |
cbe61d8a | 1293 | struct ath_hw *ah = sc->sc_ah; |
500c064d | 1294 | |
2660b81a S |
1295 | return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == |
1296 | ah->rfkill_polarity; | |
500c064d VT |
1297 | } |
1298 | ||
3b319aae | 1299 | static void ath9k_rfkill_poll_state(struct ieee80211_hw *hw) |
500c064d | 1300 | { |
3b319aae JB |
1301 | struct ath_wiphy *aphy = hw->priv; |
1302 | struct ath_softc *sc = aphy->sc; | |
19d337df | 1303 | bool blocked = !!ath_is_rfkill_set(sc); |
500c064d | 1304 | |
3b319aae | 1305 | wiphy_rfkill_set_hw_state(hw->wiphy, blocked); |
500c064d VT |
1306 | } |
1307 | ||
3b319aae | 1308 | static void ath_start_rfkill_poll(struct ath_softc *sc) |
500c064d | 1309 | { |
3b319aae | 1310 | struct ath_hw *ah = sc->sc_ah; |
9c84b797 | 1311 | |
3b319aae JB |
1312 | if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
1313 | wiphy_rfkill_start_polling(sc->hw->wiphy); | |
9c84b797 | 1314 | } |
500c064d | 1315 | |
7fda1666 LR |
1316 | static void ath9k_uninit_hw(struct ath_softc *sc) |
1317 | { | |
1318 | struct ath_hw *ah = sc->sc_ah; | |
1319 | ||
1320 | BUG_ON(!ah); | |
1321 | ||
1322 | ath9k_exit_debug(ah); | |
1323 | ath9k_hw_detach(ah); | |
1324 | sc->sc_ah = NULL; | |
1325 | } | |
1326 | ||
2568835c | 1327 | static void ath_clean_core(struct ath_softc *sc) |
f078f209 | 1328 | { |
8feceb67 | 1329 | struct ieee80211_hw *hw = sc->hw; |
4d6b228d | 1330 | struct ath_hw *ah = sc->sc_ah; |
9c84b797 | 1331 | int i = 0; |
f078f209 | 1332 | |
3cbb5dd7 VN |
1333 | ath9k_ps_wakeup(sc); |
1334 | ||
4d6b228d | 1335 | dev_dbg(sc->dev, "Detach ATH hw\n"); |
f078f209 | 1336 | |
35c95ab9 | 1337 | ath_deinit_leds(sc); |
e31f7b96 | 1338 | wiphy_rfkill_stop_polling(sc->hw->wiphy); |
35c95ab9 | 1339 | |
c52f33d0 JM |
1340 | for (i = 0; i < sc->num_sec_wiphy; i++) { |
1341 | struct ath_wiphy *aphy = sc->sec_wiphy[i]; | |
1342 | if (aphy == NULL) | |
1343 | continue; | |
1344 | sc->sec_wiphy[i] = NULL; | |
1345 | ieee80211_unregister_hw(aphy->hw); | |
1346 | ieee80211_free_hw(aphy->hw); | |
1347 | } | |
3fcdfb4b | 1348 | ieee80211_unregister_hw(hw); |
8feceb67 VT |
1349 | ath_rx_cleanup(sc); |
1350 | ath_tx_cleanup(sc); | |
f078f209 | 1351 | |
9c84b797 S |
1352 | tasklet_kill(&sc->intr_tq); |
1353 | tasklet_kill(&sc->bcon_tasklet); | |
f078f209 | 1354 | |
9c84b797 | 1355 | if (!(sc->sc_flags & SC_OP_INVALID)) |
9ecdef4b | 1356 | ath9k_setpower(sc, ATH9K_PM_AWAKE); |
8feceb67 | 1357 | |
9c84b797 S |
1358 | /* cleanup tx queues */ |
1359 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1360 | if (ATH_TXQ_SETUP(sc, i)) | |
b77f483f | 1361 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
9c84b797 | 1362 | |
75d7839f | 1363 | if ((sc->btcoex.no_stomp_timer) && |
766ec4a9 | 1364 | ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
75d7839f | 1365 | ath_gen_timer_free(ah, sc->btcoex.no_stomp_timer); |
2568835c | 1366 | } |
1773912b | 1367 | |
2568835c LR |
1368 | void ath_detach(struct ath_softc *sc) |
1369 | { | |
1370 | ath_clean_core(sc); | |
7fda1666 | 1371 | ath9k_uninit_hw(sc); |
f078f209 LR |
1372 | } |
1373 | ||
bd96d390 LR |
1374 | void ath_cleanup(struct ath_softc *sc) |
1375 | { | |
1376 | struct ath_hw *ah = sc->sc_ah; | |
1377 | struct ath_common *common = ath9k_hw_common(ah); | |
1378 | ||
1379 | ath_clean_core(sc); | |
1380 | free_irq(sc->irq, sc); | |
1381 | ath_bus_cleanup(common); | |
1382 | kfree(sc->sec_wiphy); | |
1383 | ieee80211_free_hw(sc->hw); | |
1384 | ||
1385 | ath9k_uninit_hw(sc); | |
1386 | } | |
1387 | ||
e3bb249b BC |
1388 | static int ath9k_reg_notifier(struct wiphy *wiphy, |
1389 | struct regulatory_request *request) | |
1390 | { | |
1391 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | |
1392 | struct ath_wiphy *aphy = hw->priv; | |
1393 | struct ath_softc *sc = aphy->sc; | |
27c51f1a | 1394 | struct ath_regulatory *reg = ath9k_hw_regulatory(sc->sc_ah); |
e3bb249b BC |
1395 | |
1396 | return ath_reg_notifier_apply(wiphy, request, reg); | |
1397 | } | |
1398 | ||
75d7839f LR |
1399 | /* |
1400 | * Detects if there is any priority bt traffic | |
1401 | */ | |
1402 | static void ath_detect_bt_priority(struct ath_softc *sc) | |
1403 | { | |
1404 | struct ath_btcoex *btcoex = &sc->btcoex; | |
1405 | struct ath_hw *ah = sc->sc_ah; | |
1406 | ||
766ec4a9 | 1407 | if (ath9k_hw_gpio_get(sc->sc_ah, ah->btcoex_hw.btpriority_gpio)) |
75d7839f LR |
1408 | btcoex->bt_priority_cnt++; |
1409 | ||
1410 | if (time_after(jiffies, btcoex->bt_priority_time + | |
1411 | msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) { | |
1412 | if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) { | |
c46917bb LR |
1413 | ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_BTCOEX, |
1414 | "BT priority traffic detected"); | |
75d7839f LR |
1415 | sc->sc_flags |= SC_OP_BT_PRIORITY_DETECTED; |
1416 | } else { | |
1417 | sc->sc_flags &= ~SC_OP_BT_PRIORITY_DETECTED; | |
1418 | } | |
1419 | ||
1420 | btcoex->bt_priority_cnt = 0; | |
1421 | btcoex->bt_priority_time = jiffies; | |
1422 | } | |
1423 | } | |
1424 | ||
75d7839f LR |
1425 | /* |
1426 | * Configures appropriate weight based on stomp type. | |
1427 | */ | |
269ad812 LR |
1428 | static void ath9k_btcoex_bt_stomp(struct ath_softc *sc, |
1429 | enum ath_stomp_type stomp_type) | |
75d7839f | 1430 | { |
269ad812 | 1431 | struct ath_hw *ah = sc->sc_ah; |
75d7839f LR |
1432 | |
1433 | switch (stomp_type) { | |
1434 | case ATH_BTCOEX_STOMP_ALL: | |
269ad812 LR |
1435 | ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, |
1436 | AR_STOMP_ALL_WLAN_WGHT); | |
75d7839f LR |
1437 | break; |
1438 | case ATH_BTCOEX_STOMP_LOW: | |
269ad812 LR |
1439 | ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, |
1440 | AR_STOMP_LOW_WLAN_WGHT); | |
75d7839f LR |
1441 | break; |
1442 | case ATH_BTCOEX_STOMP_NONE: | |
269ad812 LR |
1443 | ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, |
1444 | AR_STOMP_NONE_WLAN_WGHT); | |
75d7839f LR |
1445 | break; |
1446 | default: | |
c46917bb LR |
1447 | ath_print(ath9k_hw_common(ah), ATH_DBG_BTCOEX, |
1448 | "Invalid Stomptype\n"); | |
75d7839f LR |
1449 | break; |
1450 | } | |
1451 | ||
269ad812 | 1452 | ath9k_hw_btcoex_enable(ah); |
75d7839f LR |
1453 | } |
1454 | ||
cd9bf689 LR |
1455 | static void ath9k_gen_timer_start(struct ath_hw *ah, |
1456 | struct ath_gen_timer *timer, | |
1457 | u32 timer_next, | |
1458 | u32 timer_period) | |
1459 | { | |
bc974f4a LR |
1460 | struct ath_common *common = ath9k_hw_common(ah); |
1461 | struct ath_softc *sc = (struct ath_softc *) common->priv; | |
1462 | ||
cd9bf689 LR |
1463 | ath9k_hw_gen_timer_start(ah, timer, timer_next, timer_period); |
1464 | ||
bc974f4a | 1465 | if ((sc->imask & ATH9K_INT_GENTIMER) == 0) { |
cd9bf689 | 1466 | ath9k_hw_set_interrupts(ah, 0); |
bc974f4a LR |
1467 | sc->imask |= ATH9K_INT_GENTIMER; |
1468 | ath9k_hw_set_interrupts(ah, sc->imask); | |
cd9bf689 LR |
1469 | } |
1470 | } | |
1471 | ||
1472 | static void ath9k_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer) | |
1473 | { | |
bc974f4a LR |
1474 | struct ath_common *common = ath9k_hw_common(ah); |
1475 | struct ath_softc *sc = (struct ath_softc *) common->priv; | |
cd9bf689 LR |
1476 | struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; |
1477 | ||
1478 | ath9k_hw_gen_timer_stop(ah, timer); | |
1479 | ||
1480 | /* if no timer is enabled, turn off interrupt mask */ | |
1481 | if (timer_table->timer_mask.val == 0) { | |
1482 | ath9k_hw_set_interrupts(ah, 0); | |
bc974f4a LR |
1483 | sc->imask &= ~ATH9K_INT_GENTIMER; |
1484 | ath9k_hw_set_interrupts(ah, sc->imask); | |
cd9bf689 LR |
1485 | } |
1486 | } | |
1487 | ||
75d7839f LR |
1488 | /* |
1489 | * This is the master bt coex timer which runs for every | |
1490 | * 45ms, bt traffic will be given priority during 55% of this | |
1491 | * period while wlan gets remaining 45% | |
1492 | */ | |
1493 | static void ath_btcoex_period_timer(unsigned long data) | |
1494 | { | |
1495 | struct ath_softc *sc = (struct ath_softc *) data; | |
1496 | struct ath_hw *ah = sc->sc_ah; | |
1497 | struct ath_btcoex *btcoex = &sc->btcoex; | |
75d7839f LR |
1498 | |
1499 | ath_detect_bt_priority(sc); | |
1500 | ||
1501 | spin_lock_bh(&btcoex->btcoex_lock); | |
1502 | ||
269ad812 | 1503 | ath9k_btcoex_bt_stomp(sc, btcoex->bt_stomp_type); |
75d7839f LR |
1504 | |
1505 | spin_unlock_bh(&btcoex->btcoex_lock); | |
1506 | ||
1507 | if (btcoex->btcoex_period != btcoex->btcoex_no_stomp) { | |
1508 | if (btcoex->hw_timer_enabled) | |
cd9bf689 | 1509 | ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); |
75d7839f | 1510 | |
cd9bf689 LR |
1511 | ath9k_gen_timer_start(ah, |
1512 | btcoex->no_stomp_timer, | |
1513 | (ath9k_hw_gettsf32(ah) + | |
1514 | btcoex->btcoex_no_stomp), | |
1515 | btcoex->btcoex_no_stomp * 10); | |
75d7839f LR |
1516 | btcoex->hw_timer_enabled = true; |
1517 | } | |
1518 | ||
1519 | mod_timer(&btcoex->period_timer, jiffies + | |
1520 | msecs_to_jiffies(ATH_BTCOEX_DEF_BT_PERIOD)); | |
1521 | } | |
1522 | ||
1523 | /* | |
1524 | * Generic tsf based hw timer which configures weight | |
1525 | * registers to time slice between wlan and bt traffic | |
1526 | */ | |
1527 | static void ath_btcoex_no_stomp_timer(void *arg) | |
1528 | { | |
1529 | struct ath_softc *sc = (struct ath_softc *)arg; | |
1530 | struct ath_hw *ah = sc->sc_ah; | |
1531 | struct ath_btcoex *btcoex = &sc->btcoex; | |
75d7839f | 1532 | |
c46917bb LR |
1533 | ath_print(ath9k_hw_common(ah), ATH_DBG_BTCOEX, |
1534 | "no stomp timer running \n"); | |
75d7839f LR |
1535 | |
1536 | spin_lock_bh(&btcoex->btcoex_lock); | |
1537 | ||
e08a6ace | 1538 | if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW) |
269ad812 | 1539 | ath9k_btcoex_bt_stomp(sc, ATH_BTCOEX_STOMP_NONE); |
e08a6ace | 1540 | else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) |
269ad812 | 1541 | ath9k_btcoex_bt_stomp(sc, ATH_BTCOEX_STOMP_LOW); |
75d7839f LR |
1542 | |
1543 | spin_unlock_bh(&btcoex->btcoex_lock); | |
1544 | } | |
1545 | ||
1546 | static int ath_init_btcoex_timer(struct ath_softc *sc) | |
1547 | { | |
1548 | struct ath_btcoex *btcoex = &sc->btcoex; | |
1549 | ||
1550 | btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD * 1000; | |
1551 | btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) * | |
1552 | btcoex->btcoex_period / 100; | |
1553 | ||
1554 | setup_timer(&btcoex->period_timer, ath_btcoex_period_timer, | |
1555 | (unsigned long) sc); | |
1556 | ||
1557 | spin_lock_init(&btcoex->btcoex_lock); | |
1558 | ||
1559 | btcoex->no_stomp_timer = ath_gen_timer_alloc(sc->sc_ah, | |
1560 | ath_btcoex_no_stomp_timer, | |
1561 | ath_btcoex_no_stomp_timer, | |
1562 | (void *) sc, AR_FIRST_NDP_TIMER); | |
1563 | ||
1564 | if (!btcoex->no_stomp_timer) | |
1565 | return -ENOMEM; | |
1566 | ||
1567 | return 0; | |
1568 | } | |
1569 | ||
9e4bffd2 LR |
1570 | /* |
1571 | * Read and write, they both share the same lock. We do this to serialize | |
1572 | * reads and writes on Atheros 802.11n PCI devices only. This is required | |
1573 | * as the FIFO on these devices can only accept sanely 2 requests. After | |
1574 | * that the device goes bananas. Serializing the reads/writes prevents this | |
1575 | * from happening. | |
1576 | */ | |
1577 | ||
1578 | static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset) | |
1579 | { | |
1580 | struct ath_hw *ah = (struct ath_hw *) hw_priv; | |
bc974f4a LR |
1581 | struct ath_common *common = ath9k_hw_common(ah); |
1582 | struct ath_softc *sc = (struct ath_softc *) common->priv; | |
9e4bffd2 LR |
1583 | |
1584 | if (ah->config.serialize_regmode == SER_REG_MODE_ON) { | |
1585 | unsigned long flags; | |
bc974f4a LR |
1586 | spin_lock_irqsave(&sc->sc_serial_rw, flags); |
1587 | iowrite32(val, sc->mem + reg_offset); | |
1588 | spin_unlock_irqrestore(&sc->sc_serial_rw, flags); | |
9e4bffd2 | 1589 | } else |
bc974f4a | 1590 | iowrite32(val, sc->mem + reg_offset); |
9e4bffd2 LR |
1591 | } |
1592 | ||
1593 | static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset) | |
1594 | { | |
1595 | struct ath_hw *ah = (struct ath_hw *) hw_priv; | |
bc974f4a LR |
1596 | struct ath_common *common = ath9k_hw_common(ah); |
1597 | struct ath_softc *sc = (struct ath_softc *) common->priv; | |
9e4bffd2 LR |
1598 | u32 val; |
1599 | ||
1600 | if (ah->config.serialize_regmode == SER_REG_MODE_ON) { | |
1601 | unsigned long flags; | |
bc974f4a LR |
1602 | spin_lock_irqsave(&sc->sc_serial_rw, flags); |
1603 | val = ioread32(sc->mem + reg_offset); | |
1604 | spin_unlock_irqrestore(&sc->sc_serial_rw, flags); | |
9e4bffd2 | 1605 | } else |
bc974f4a | 1606 | val = ioread32(sc->mem + reg_offset); |
9e4bffd2 LR |
1607 | return val; |
1608 | } | |
1609 | ||
2ddb5c8b | 1610 | static const struct ath_ops ath9k_common_ops = { |
9e4bffd2 LR |
1611 | .read = ath9k_ioread32, |
1612 | .write = ath9k_iowrite32, | |
1613 | }; | |
1614 | ||
1e40bcfa LR |
1615 | /* |
1616 | * Initialize and fill ath_softc, ath_sofct is the | |
1617 | * "Software Carrier" struct. Historically it has existed | |
1618 | * to allow the separation between hardware specific | |
1619 | * variables (now in ath_hw) and driver specific variables. | |
1620 | */ | |
5bb12791 LR |
1621 | static int ath_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid, |
1622 | const struct ath_bus_ops *bus_ops) | |
ff37e337 | 1623 | { |
cbe61d8a | 1624 | struct ath_hw *ah = NULL; |
1510718d | 1625 | struct ath_common *common; |
4f3acf81 | 1626 | int r = 0, i; |
ff37e337 | 1627 | int csz = 0; |
75d7839f | 1628 | int qnum; |
ff37e337 S |
1629 | |
1630 | /* XXX: hardware will not be ready until ath_open() being called */ | |
1631 | sc->sc_flags |= SC_OP_INVALID; | |
88b126af | 1632 | |
c52f33d0 | 1633 | spin_lock_init(&sc->wiphy_lock); |
ff37e337 | 1634 | spin_lock_init(&sc->sc_resetlock); |
6158425b | 1635 | spin_lock_init(&sc->sc_serial_rw); |
e5f0921a | 1636 | spin_lock_init(&sc->ani_lock); |
04717ccd | 1637 | spin_lock_init(&sc->sc_pm_lock); |
aa33de09 | 1638 | mutex_init(&sc->mutex); |
ff37e337 | 1639 | tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc); |
9fc9ab0a | 1640 | tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, |
ff37e337 S |
1641 | (unsigned long)sc); |
1642 | ||
4f3acf81 | 1643 | ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL); |
211f5859 LR |
1644 | if (!ah) |
1645 | return -ENOMEM; | |
4f3acf81 | 1646 | |
8df5d1b7 | 1647 | ah->hw_version.devid = devid; |
aeac355d | 1648 | ah->hw_version.subsysid = subsysid; |
e1e2f93f | 1649 | sc->sc_ah = ah; |
4f3acf81 | 1650 | |
27c51f1a | 1651 | common = ath9k_hw_common(ah); |
9e4bffd2 | 1652 | common->ops = &ath9k_common_ops; |
5bb12791 | 1653 | common->bus_ops = bus_ops; |
13b81559 | 1654 | common->ah = ah; |
b002a4a9 | 1655 | common->hw = sc->hw; |
bc974f4a | 1656 | common->priv = sc; |
faa27fae | 1657 | common->debug_mask = ath9k_debug; |
27c51f1a LR |
1658 | |
1659 | /* | |
1660 | * Cache line size is used to size and align various | |
1661 | * structures used to communicate with the hardware. | |
1662 | */ | |
5bb12791 | 1663 | ath_read_cachesize(common, &csz); |
27c51f1a LR |
1664 | /* XXX assert csz is non-zero */ |
1665 | common->cachelsz = csz << 2; /* convert to bytes */ | |
1666 | ||
f637cfd6 | 1667 | r = ath9k_hw_init(ah); |
4f3acf81 | 1668 | if (r) { |
c46917bb LR |
1669 | ath_print(common, ATH_DBG_FATAL, |
1670 | "Unable to initialize hardware; " | |
1671 | "initialization status: %d\n", r); | |
211f5859 LR |
1672 | goto bad_free_hw; |
1673 | } | |
1674 | ||
1675 | if (ath9k_init_debug(ah) < 0) { | |
1676 | ath_print(common, ATH_DBG_FATAL, | |
1677 | "Unable to create debugfs files\n"); | |
1678 | goto bad_free_hw; | |
ff37e337 | 1679 | } |
ff37e337 S |
1680 | |
1681 | /* Get the hardware key cache size. */ | |
2660b81a | 1682 | sc->keymax = ah->caps.keycache_size; |
17d7904d | 1683 | if (sc->keymax > ATH_KEYMAX) { |
c46917bb LR |
1684 | ath_print(common, ATH_DBG_ANY, |
1685 | "Warning, using only %u entries in %u key cache\n", | |
1686 | ATH_KEYMAX, sc->keymax); | |
17d7904d | 1687 | sc->keymax = ATH_KEYMAX; |
ff37e337 S |
1688 | } |
1689 | ||
1690 | /* | |
1691 | * Reset the key cache since some parts do not | |
1692 | * reset the contents on initial power up. | |
1693 | */ | |
17d7904d | 1694 | for (i = 0; i < sc->keymax; i++) |
ff37e337 | 1695 | ath9k_hw_keyreset(ah, (u16) i); |
ff37e337 | 1696 | |
ff37e337 | 1697 | /* default to MONITOR mode */ |
2660b81a | 1698 | sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; |
d97809db | 1699 | |
ff37e337 S |
1700 | /* Setup rate tables */ |
1701 | ||
1702 | ath_rate_attach(sc); | |
1703 | ath_setup_rates(sc, IEEE80211_BAND_2GHZ); | |
1704 | ath_setup_rates(sc, IEEE80211_BAND_5GHZ); | |
1705 | ||
1706 | /* | |
1707 | * Allocate hardware transmit queues: one queue for | |
1708 | * beacon frames and one data queue for each QoS | |
1709 | * priority. Note that the hal handles reseting | |
1710 | * these queues at the needed time. | |
1711 | */ | |
b77f483f S |
1712 | sc->beacon.beaconq = ath_beaconq_setup(ah); |
1713 | if (sc->beacon.beaconq == -1) { | |
c46917bb LR |
1714 | ath_print(common, ATH_DBG_FATAL, |
1715 | "Unable to setup a beacon xmit queue\n"); | |
4f3acf81 | 1716 | r = -EIO; |
ff37e337 S |
1717 | goto bad2; |
1718 | } | |
b77f483f S |
1719 | sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0); |
1720 | if (sc->beacon.cabq == NULL) { | |
c46917bb LR |
1721 | ath_print(common, ATH_DBG_FATAL, |
1722 | "Unable to setup CAB xmit queue\n"); | |
4f3acf81 | 1723 | r = -EIO; |
ff37e337 S |
1724 | goto bad2; |
1725 | } | |
1726 | ||
17d7904d | 1727 | sc->config.cabqReadytime = ATH_CABQ_READY_TIME; |
ff37e337 S |
1728 | ath_cabq_update(sc); |
1729 | ||
b77f483f S |
1730 | for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++) |
1731 | sc->tx.hwq_map[i] = -1; | |
ff37e337 S |
1732 | |
1733 | /* Setup data queues */ | |
1734 | /* NB: ensure BK queue is the lowest priority h/w queue */ | |
1735 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) { | |
c46917bb LR |
1736 | ath_print(common, ATH_DBG_FATAL, |
1737 | "Unable to setup xmit queue for BK traffic\n"); | |
4f3acf81 | 1738 | r = -EIO; |
ff37e337 S |
1739 | goto bad2; |
1740 | } | |
1741 | ||
1742 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BE)) { | |
c46917bb LR |
1743 | ath_print(common, ATH_DBG_FATAL, |
1744 | "Unable to setup xmit queue for BE traffic\n"); | |
4f3acf81 | 1745 | r = -EIO; |
ff37e337 S |
1746 | goto bad2; |
1747 | } | |
1748 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VI)) { | |
c46917bb LR |
1749 | ath_print(common, ATH_DBG_FATAL, |
1750 | "Unable to setup xmit queue for VI traffic\n"); | |
4f3acf81 | 1751 | r = -EIO; |
ff37e337 S |
1752 | goto bad2; |
1753 | } | |
1754 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VO)) { | |
c46917bb LR |
1755 | ath_print(common, ATH_DBG_FATAL, |
1756 | "Unable to setup xmit queue for VO traffic\n"); | |
4f3acf81 | 1757 | r = -EIO; |
ff37e337 S |
1758 | goto bad2; |
1759 | } | |
1760 | ||
1761 | /* Initializes the noise floor to a reasonable default value. | |
1762 | * Later on this will be updated during ANI processing. */ | |
1763 | ||
17d7904d S |
1764 | sc->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR; |
1765 | setup_timer(&sc->ani.timer, ath_ani_calibrate, (unsigned long)sc); | |
ff37e337 S |
1766 | |
1767 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1768 | ATH9K_CIPHER_TKIP, NULL)) { | |
1769 | /* | |
1770 | * Whether we should enable h/w TKIP MIC. | |
1771 | * XXX: if we don't support WME TKIP MIC, then we wouldn't | |
1772 | * report WMM capable, so it's always safe to turn on | |
1773 | * TKIP MIC in this case. | |
1774 | */ | |
1775 | ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC, | |
1776 | 0, 1, NULL); | |
1777 | } | |
1778 | ||
1779 | /* | |
1780 | * Check whether the separate key cache entries | |
1781 | * are required to handle both tx+rx MIC keys. | |
1782 | * With split mic keys the number of stations is limited | |
1783 | * to 27 otherwise 59. | |
1784 | */ | |
1785 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1786 | ATH9K_CIPHER_TKIP, NULL) | |
1787 | && ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1788 | ATH9K_CIPHER_MIC, NULL) | |
1789 | && ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT, | |
1790 | 0, NULL)) | |
17d7904d | 1791 | sc->splitmic = 1; |
ff37e337 S |
1792 | |
1793 | /* turn on mcast key search if possible */ | |
1794 | if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL)) | |
1795 | (void)ath9k_hw_setcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 1, | |
1796 | 1, NULL); | |
1797 | ||
17d7904d | 1798 | sc->config.txpowlimit = ATH_TXPOWER_MAX; |
ff37e337 S |
1799 | |
1800 | /* 11n Capabilities */ | |
2660b81a | 1801 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
ff37e337 S |
1802 | sc->sc_flags |= SC_OP_TXAGGR; |
1803 | sc->sc_flags |= SC_OP_RXAGGR; | |
1804 | } | |
1805 | ||
43c27613 LR |
1806 | common->tx_chainmask = ah->caps.tx_chainmask; |
1807 | common->rx_chainmask = ah->caps.rx_chainmask; | |
ff37e337 S |
1808 | |
1809 | ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL); | |
b77f483f | 1810 | sc->rx.defant = ath9k_hw_getdefantenna(ah); |
ff37e337 | 1811 | |
8ca21f01 | 1812 | if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) |
1510718d | 1813 | memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN); |
ff37e337 | 1814 | |
b77f483f | 1815 | sc->beacon.slottime = ATH9K_SLOT_TIME_9; /* default to short slot time */ |
ff37e337 S |
1816 | |
1817 | /* initialize beacon slots */ | |
c52f33d0 | 1818 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
2c3db3d5 | 1819 | sc->beacon.bslot[i] = NULL; |
c52f33d0 JM |
1820 | sc->beacon.bslot_aphy[i] = NULL; |
1821 | } | |
ff37e337 | 1822 | |
ff37e337 S |
1823 | /* setup channels and rates */ |
1824 | ||
5f8e077c | 1825 | sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable; |
ff37e337 S |
1826 | sc->sbands[IEEE80211_BAND_2GHZ].bitrates = |
1827 | sc->rates[IEEE80211_BAND_2GHZ]; | |
1828 | sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ; | |
5f8e077c LR |
1829 | sc->sbands[IEEE80211_BAND_2GHZ].n_channels = |
1830 | ARRAY_SIZE(ath9k_2ghz_chantable); | |
ff37e337 | 1831 | |
2660b81a | 1832 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) { |
5f8e077c | 1833 | sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable; |
ff37e337 S |
1834 | sc->sbands[IEEE80211_BAND_5GHZ].bitrates = |
1835 | sc->rates[IEEE80211_BAND_5GHZ]; | |
1836 | sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; | |
5f8e077c LR |
1837 | sc->sbands[IEEE80211_BAND_5GHZ].n_channels = |
1838 | ARRAY_SIZE(ath9k_5ghz_chantable); | |
ff37e337 S |
1839 | } |
1840 | ||
766ec4a9 | 1841 | switch (ah->btcoex_hw.scheme) { |
75d7839f LR |
1842 | case ATH_BTCOEX_CFG_NONE: |
1843 | break; | |
1844 | case ATH_BTCOEX_CFG_2WIRE: | |
1845 | ath9k_hw_btcoex_init_2wire(ah); | |
1846 | break; | |
1847 | case ATH_BTCOEX_CFG_3WIRE: | |
1848 | ath9k_hw_btcoex_init_3wire(ah); | |
1849 | r = ath_init_btcoex_timer(sc); | |
1773912b VT |
1850 | if (r) |
1851 | goto bad2; | |
75d7839f | 1852 | qnum = ath_tx_get_qnum(sc, ATH9K_TX_QUEUE_DATA, ATH9K_WME_AC_BE); |
766ec4a9 | 1853 | ath9k_hw_init_btcoex_hw(ah, qnum); |
e08a6ace | 1854 | sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW; |
75d7839f LR |
1855 | break; |
1856 | default: | |
1857 | WARN_ON(1); | |
1858 | break; | |
1773912b | 1859 | } |
c97c92d9 | 1860 | |
ff37e337 S |
1861 | return 0; |
1862 | bad2: | |
1863 | /* cleanup tx queues */ | |
1864 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1865 | if (ATH_TXQ_SETUP(sc, i)) | |
b77f483f | 1866 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
211f5859 | 1867 | |
211f5859 | 1868 | bad_free_hw: |
7fda1666 | 1869 | ath9k_uninit_hw(sc); |
4f3acf81 | 1870 | return r; |
ff37e337 S |
1871 | } |
1872 | ||
c52f33d0 | 1873 | void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) |
f078f209 | 1874 | { |
9c84b797 S |
1875 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
1876 | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | | |
1877 | IEEE80211_HW_SIGNAL_DBM | | |
3cbb5dd7 VN |
1878 | IEEE80211_HW_AMPDU_AGGREGATION | |
1879 | IEEE80211_HW_SUPPORTS_PS | | |
eeee1320 S |
1880 | IEEE80211_HW_PS_NULLFUNC_STACK | |
1881 | IEEE80211_HW_SPECTRUM_MGMT; | |
f078f209 | 1882 | |
b3bd89ce | 1883 | if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt) |
0ced0e17 JM |
1884 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
1885 | ||
9c84b797 S |
1886 | hw->wiphy->interface_modes = |
1887 | BIT(NL80211_IFTYPE_AP) | | |
1888 | BIT(NL80211_IFTYPE_STATION) | | |
9cb5412b PE |
1889 | BIT(NL80211_IFTYPE_ADHOC) | |
1890 | BIT(NL80211_IFTYPE_MESH_POINT); | |
f078f209 | 1891 | |
8feceb67 | 1892 | hw->queues = 4; |
e63835b0 | 1893 | hw->max_rates = 4; |
171387ef | 1894 | hw->channel_change_time = 5000; |
465ca84d | 1895 | hw->max_listen_interval = 10; |
dd190183 LR |
1896 | /* Hardware supports 10 but we use 4 */ |
1897 | hw->max_rate_tries = 4; | |
528f0c6b | 1898 | hw->sta_data_size = sizeof(struct ath_node); |
17d7904d | 1899 | hw->vif_data_size = sizeof(struct ath_vif); |
f078f209 | 1900 | |
8feceb67 | 1901 | hw->rate_control_algorithm = "ath9k_rate_control"; |
f078f209 | 1902 | |
c52f33d0 JM |
1903 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
1904 | &sc->sbands[IEEE80211_BAND_2GHZ]; | |
1905 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) | |
1906 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
1907 | &sc->sbands[IEEE80211_BAND_5GHZ]; | |
1908 | } | |
1909 | ||
1e40bcfa | 1910 | /* Device driver core initialization */ |
5bb12791 LR |
1911 | int ath_init_device(u16 devid, struct ath_softc *sc, u16 subsysid, |
1912 | const struct ath_bus_ops *bus_ops) | |
c52f33d0 JM |
1913 | { |
1914 | struct ieee80211_hw *hw = sc->hw; | |
1510718d | 1915 | struct ath_common *common; |
4d6b228d | 1916 | struct ath_hw *ah; |
c52f33d0 | 1917 | int error = 0, i; |
3a702e49 | 1918 | struct ath_regulatory *reg; |
c52f33d0 | 1919 | |
4d6b228d | 1920 | dev_dbg(sc->dev, "Attach ATH hw\n"); |
c52f33d0 | 1921 | |
5bb12791 | 1922 | error = ath_init_softc(devid, sc, subsysid, bus_ops); |
c52f33d0 JM |
1923 | if (error != 0) |
1924 | return error; | |
1925 | ||
4d6b228d | 1926 | ah = sc->sc_ah; |
1510718d | 1927 | common = ath9k_hw_common(ah); |
4d6b228d | 1928 | |
c52f33d0 JM |
1929 | /* get mac address from hardware and set in mac80211 */ |
1930 | ||
1510718d | 1931 | SET_IEEE80211_PERM_ADDR(hw, common->macaddr); |
c52f33d0 JM |
1932 | |
1933 | ath_set_hw_capab(sc, hw); | |
1934 | ||
1510718d | 1935 | error = ath_regd_init(&common->regulatory, sc->hw->wiphy, |
c26c2e57 LR |
1936 | ath9k_reg_notifier); |
1937 | if (error) | |
1938 | return error; | |
1939 | ||
1510718d | 1940 | reg = &common->regulatory; |
c26c2e57 | 1941 | |
4d6b228d | 1942 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
eb2599ca | 1943 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap); |
4d6b228d | 1944 | if (test_bit(ATH9K_MODE_11A, ah->caps.wireless_modes)) |
eb2599ca | 1945 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); |
9c84b797 S |
1946 | } |
1947 | ||
db93e7b5 SB |
1948 | /* initialize tx/rx engine */ |
1949 | error = ath_tx_init(sc, ATH_TXBUF); | |
1950 | if (error != 0) | |
40b130a9 | 1951 | goto error_attach; |
8feceb67 | 1952 | |
db93e7b5 SB |
1953 | error = ath_rx_init(sc, ATH_RXBUF); |
1954 | if (error != 0) | |
40b130a9 | 1955 | goto error_attach; |
8feceb67 | 1956 | |
0e2dedf9 | 1957 | INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work); |
f98c3bd2 JM |
1958 | INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work); |
1959 | sc->wiphy_scheduler_int = msecs_to_jiffies(500); | |
0e2dedf9 | 1960 | |
db93e7b5 | 1961 | error = ieee80211_register_hw(hw); |
8feceb67 | 1962 | |
3a702e49 | 1963 | if (!ath_is_world_regd(reg)) { |
c02cf373 | 1964 | error = regulatory_hint(hw->wiphy, reg->alpha2); |
fe33eb39 LR |
1965 | if (error) |
1966 | goto error_attach; | |
1967 | } | |
5f8e077c | 1968 | |
db93e7b5 SB |
1969 | /* Initialize LED control */ |
1970 | ath_init_leds(sc); | |
8feceb67 | 1971 | |
3b319aae | 1972 | ath_start_rfkill_poll(sc); |
5f8e077c | 1973 | |
8feceb67 | 1974 | return 0; |
40b130a9 VT |
1975 | |
1976 | error_attach: | |
1977 | /* cleanup tx queues */ | |
1978 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1979 | if (ATH_TXQ_SETUP(sc, i)) | |
1980 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); | |
1981 | ||
7fda1666 | 1982 | ath9k_uninit_hw(sc); |
40b130a9 | 1983 | |
8feceb67 | 1984 | return error; |
f078f209 LR |
1985 | } |
1986 | ||
ff37e337 S |
1987 | int ath_reset(struct ath_softc *sc, bool retry_tx) |
1988 | { | |
cbe61d8a | 1989 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 1990 | struct ath_common *common = ath9k_hw_common(ah); |
030bb495 | 1991 | struct ieee80211_hw *hw = sc->hw; |
ae8d2858 | 1992 | int r; |
ff37e337 S |
1993 | |
1994 | ath9k_hw_set_interrupts(ah, 0); | |
043a0405 | 1995 | ath_drain_all_txq(sc, retry_tx); |
ff37e337 S |
1996 | ath_stoprecv(sc); |
1997 | ath_flushrecv(sc); | |
1998 | ||
1999 | spin_lock_bh(&sc->sc_resetlock); | |
2660b81a | 2000 | r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); |
ae8d2858 | 2001 | if (r) |
c46917bb LR |
2002 | ath_print(common, ATH_DBG_FATAL, |
2003 | "Unable to reset hardware; reset status %d\n", r); | |
ff37e337 S |
2004 | spin_unlock_bh(&sc->sc_resetlock); |
2005 | ||
2006 | if (ath_startrecv(sc) != 0) | |
c46917bb LR |
2007 | ath_print(common, ATH_DBG_FATAL, |
2008 | "Unable to start recv logic\n"); | |
ff37e337 S |
2009 | |
2010 | /* | |
2011 | * We may be doing a reset in response to a request | |
2012 | * that changes the channel so update any state that | |
2013 | * might change as a result. | |
2014 | */ | |
ce111bad | 2015 | ath_cache_conf_rate(sc, &hw->conf); |
ff37e337 S |
2016 | |
2017 | ath_update_txpow(sc); | |
2018 | ||
2019 | if (sc->sc_flags & SC_OP_BEACONS) | |
2c3db3d5 | 2020 | ath_beacon_config(sc, NULL); /* restart beacons */ |
ff37e337 | 2021 | |
17d7904d | 2022 | ath9k_hw_set_interrupts(ah, sc->imask); |
ff37e337 S |
2023 | |
2024 | if (retry_tx) { | |
2025 | int i; | |
2026 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { | |
2027 | if (ATH_TXQ_SETUP(sc, i)) { | |
b77f483f S |
2028 | spin_lock_bh(&sc->tx.txq[i].axq_lock); |
2029 | ath_txq_schedule(sc, &sc->tx.txq[i]); | |
2030 | spin_unlock_bh(&sc->tx.txq[i].axq_lock); | |
ff37e337 S |
2031 | } |
2032 | } | |
2033 | } | |
2034 | ||
ae8d2858 | 2035 | return r; |
ff37e337 S |
2036 | } |
2037 | ||
2038 | /* | |
2039 | * This function will allocate both the DMA descriptor structure, and the | |
2040 | * buffers it contains. These are used to contain the descriptors used | |
2041 | * by the system. | |
2042 | */ | |
2043 | int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, | |
2044 | struct list_head *head, const char *name, | |
2045 | int nbuf, int ndesc) | |
2046 | { | |
2047 | #define DS2PHYS(_dd, _ds) \ | |
2048 | ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) | |
2049 | #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) | |
2050 | #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) | |
c46917bb | 2051 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
ff37e337 S |
2052 | struct ath_desc *ds; |
2053 | struct ath_buf *bf; | |
2054 | int i, bsize, error; | |
2055 | ||
c46917bb LR |
2056 | ath_print(common, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n", |
2057 | name, nbuf, ndesc); | |
ff37e337 | 2058 | |
b03a9db9 | 2059 | INIT_LIST_HEAD(head); |
ff37e337 S |
2060 | /* ath_desc must be a multiple of DWORDs */ |
2061 | if ((sizeof(struct ath_desc) % 4) != 0) { | |
c46917bb LR |
2062 | ath_print(common, ATH_DBG_FATAL, |
2063 | "ath_desc not DWORD aligned\n"); | |
9680e8a3 | 2064 | BUG_ON((sizeof(struct ath_desc) % 4) != 0); |
ff37e337 S |
2065 | error = -ENOMEM; |
2066 | goto fail; | |
2067 | } | |
2068 | ||
ff37e337 S |
2069 | dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc; |
2070 | ||
2071 | /* | |
2072 | * Need additional DMA memory because we can't use | |
2073 | * descriptors that cross the 4K page boundary. Assume | |
2074 | * one skipped descriptor per 4K page. | |
2075 | */ | |
2660b81a | 2076 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
ff37e337 S |
2077 | u32 ndesc_skipped = |
2078 | ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len); | |
2079 | u32 dma_len; | |
2080 | ||
2081 | while (ndesc_skipped) { | |
2082 | dma_len = ndesc_skipped * sizeof(struct ath_desc); | |
2083 | dd->dd_desc_len += dma_len; | |
2084 | ||
2085 | ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len); | |
2086 | }; | |
2087 | } | |
2088 | ||
2089 | /* allocate descriptors */ | |
7da3c55c | 2090 | dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len, |
f0e6ce13 | 2091 | &dd->dd_desc_paddr, GFP_KERNEL); |
ff37e337 S |
2092 | if (dd->dd_desc == NULL) { |
2093 | error = -ENOMEM; | |
2094 | goto fail; | |
2095 | } | |
2096 | ds = dd->dd_desc; | |
c46917bb LR |
2097 | ath_print(common, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n", |
2098 | name, ds, (u32) dd->dd_desc_len, | |
2099 | ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len); | |
ff37e337 S |
2100 | |
2101 | /* allocate buffers */ | |
2102 | bsize = sizeof(struct ath_buf) * nbuf; | |
f0e6ce13 | 2103 | bf = kzalloc(bsize, GFP_KERNEL); |
ff37e337 S |
2104 | if (bf == NULL) { |
2105 | error = -ENOMEM; | |
2106 | goto fail2; | |
2107 | } | |
ff37e337 S |
2108 | dd->dd_bufptr = bf; |
2109 | ||
ff37e337 S |
2110 | for (i = 0; i < nbuf; i++, bf++, ds += ndesc) { |
2111 | bf->bf_desc = ds; | |
2112 | bf->bf_daddr = DS2PHYS(dd, ds); | |
2113 | ||
2660b81a | 2114 | if (!(sc->sc_ah->caps.hw_caps & |
ff37e337 S |
2115 | ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
2116 | /* | |
2117 | * Skip descriptor addresses which can cause 4KB | |
2118 | * boundary crossing (addr + length) with a 32 dword | |
2119 | * descriptor fetch. | |
2120 | */ | |
2121 | while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) { | |
9680e8a3 | 2122 | BUG_ON((caddr_t) bf->bf_desc >= |
ff37e337 S |
2123 | ((caddr_t) dd->dd_desc + |
2124 | dd->dd_desc_len)); | |
2125 | ||
2126 | ds += ndesc; | |
2127 | bf->bf_desc = ds; | |
2128 | bf->bf_daddr = DS2PHYS(dd, ds); | |
2129 | } | |
2130 | } | |
2131 | list_add_tail(&bf->list, head); | |
2132 | } | |
2133 | return 0; | |
2134 | fail2: | |
7da3c55c GJ |
2135 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
2136 | dd->dd_desc_paddr); | |
ff37e337 S |
2137 | fail: |
2138 | memset(dd, 0, sizeof(*dd)); | |
2139 | return error; | |
2140 | #undef ATH_DESC_4KB_BOUND_CHECK | |
2141 | #undef ATH_DESC_4KB_BOUND_NUM_SKIPPED | |
2142 | #undef DS2PHYS | |
2143 | } | |
2144 | ||
2145 | void ath_descdma_cleanup(struct ath_softc *sc, | |
2146 | struct ath_descdma *dd, | |
2147 | struct list_head *head) | |
2148 | { | |
7da3c55c GJ |
2149 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
2150 | dd->dd_desc_paddr); | |
ff37e337 S |
2151 | |
2152 | INIT_LIST_HEAD(head); | |
2153 | kfree(dd->dd_bufptr); | |
2154 | memset(dd, 0, sizeof(*dd)); | |
2155 | } | |
2156 | ||
2157 | int ath_get_hal_qnum(u16 queue, struct ath_softc *sc) | |
2158 | { | |
2159 | int qnum; | |
2160 | ||
2161 | switch (queue) { | |
2162 | case 0: | |
b77f483f | 2163 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VO]; |
ff37e337 S |
2164 | break; |
2165 | case 1: | |
b77f483f | 2166 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VI]; |
ff37e337 S |
2167 | break; |
2168 | case 2: | |
b77f483f | 2169 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
ff37e337 S |
2170 | break; |
2171 | case 3: | |
b77f483f | 2172 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BK]; |
ff37e337 S |
2173 | break; |
2174 | default: | |
b77f483f | 2175 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
ff37e337 S |
2176 | break; |
2177 | } | |
2178 | ||
2179 | return qnum; | |
2180 | } | |
2181 | ||
2182 | int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc) | |
2183 | { | |
2184 | int qnum; | |
2185 | ||
2186 | switch (queue) { | |
2187 | case ATH9K_WME_AC_VO: | |
2188 | qnum = 0; | |
2189 | break; | |
2190 | case ATH9K_WME_AC_VI: | |
2191 | qnum = 1; | |
2192 | break; | |
2193 | case ATH9K_WME_AC_BE: | |
2194 | qnum = 2; | |
2195 | break; | |
2196 | case ATH9K_WME_AC_BK: | |
2197 | qnum = 3; | |
2198 | break; | |
2199 | default: | |
2200 | qnum = -1; | |
2201 | break; | |
2202 | } | |
2203 | ||
2204 | return qnum; | |
2205 | } | |
2206 | ||
5f8e077c LR |
2207 | /* XXX: Remove me once we don't depend on ath9k_channel for all |
2208 | * this redundant data */ | |
0e2dedf9 JM |
2209 | void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, |
2210 | struct ath9k_channel *ichan) | |
5f8e077c | 2211 | { |
5f8e077c LR |
2212 | struct ieee80211_channel *chan = hw->conf.channel; |
2213 | struct ieee80211_conf *conf = &hw->conf; | |
2214 | ||
2215 | ichan->channel = chan->center_freq; | |
2216 | ichan->chan = chan; | |
2217 | ||
2218 | if (chan->band == IEEE80211_BAND_2GHZ) { | |
2219 | ichan->chanmode = CHANNEL_G; | |
8813262e | 2220 | ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM | CHANNEL_G; |
5f8e077c LR |
2221 | } else { |
2222 | ichan->chanmode = CHANNEL_A; | |
2223 | ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM; | |
2224 | } | |
2225 | ||
25c56eec | 2226 | if (conf_is_ht(conf)) |
5f8e077c LR |
2227 | ichan->chanmode = ath_get_extchanmode(sc, chan, |
2228 | conf->channel_type); | |
5f8e077c LR |
2229 | } |
2230 | ||
ff37e337 S |
2231 | /**********************/ |
2232 | /* mac80211 callbacks */ | |
2233 | /**********************/ | |
2234 | ||
75d7839f LR |
2235 | /* |
2236 | * (Re)start btcoex timers | |
2237 | */ | |
2238 | static void ath9k_btcoex_timer_resume(struct ath_softc *sc) | |
2239 | { | |
2240 | struct ath_btcoex *btcoex = &sc->btcoex; | |
2241 | struct ath_hw *ah = sc->sc_ah; | |
2242 | ||
c46917bb LR |
2243 | ath_print(ath9k_hw_common(ah), ATH_DBG_BTCOEX, |
2244 | "Starting btcoex timers"); | |
75d7839f LR |
2245 | |
2246 | /* make sure duty cycle timer is also stopped when resuming */ | |
2247 | if (btcoex->hw_timer_enabled) | |
cd9bf689 | 2248 | ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer); |
75d7839f LR |
2249 | |
2250 | btcoex->bt_priority_cnt = 0; | |
2251 | btcoex->bt_priority_time = jiffies; | |
2252 | sc->sc_flags &= ~SC_OP_BT_PRIORITY_DETECTED; | |
2253 | ||
2254 | mod_timer(&btcoex->period_timer, jiffies); | |
2255 | } | |
2256 | ||
8feceb67 | 2257 | static int ath9k_start(struct ieee80211_hw *hw) |
f078f209 | 2258 | { |
bce048d7 JM |
2259 | struct ath_wiphy *aphy = hw->priv; |
2260 | struct ath_softc *sc = aphy->sc; | |
af03abec | 2261 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 2262 | struct ath_common *common = ath9k_hw_common(ah); |
8feceb67 | 2263 | struct ieee80211_channel *curchan = hw->conf.channel; |
ff37e337 | 2264 | struct ath9k_channel *init_channel; |
82880a7c | 2265 | int r; |
f078f209 | 2266 | |
c46917bb LR |
2267 | ath_print(common, ATH_DBG_CONFIG, |
2268 | "Starting driver with initial channel: %d MHz\n", | |
2269 | curchan->center_freq); | |
f078f209 | 2270 | |
141b38b6 S |
2271 | mutex_lock(&sc->mutex); |
2272 | ||
9580a222 JM |
2273 | if (ath9k_wiphy_started(sc)) { |
2274 | if (sc->chan_idx == curchan->hw_value) { | |
2275 | /* | |
2276 | * Already on the operational channel, the new wiphy | |
2277 | * can be marked active. | |
2278 | */ | |
2279 | aphy->state = ATH_WIPHY_ACTIVE; | |
2280 | ieee80211_wake_queues(hw); | |
2281 | } else { | |
2282 | /* | |
2283 | * Another wiphy is on another channel, start the new | |
2284 | * wiphy in paused state. | |
2285 | */ | |
2286 | aphy->state = ATH_WIPHY_PAUSED; | |
2287 | ieee80211_stop_queues(hw); | |
2288 | } | |
2289 | mutex_unlock(&sc->mutex); | |
2290 | return 0; | |
2291 | } | |
2292 | aphy->state = ATH_WIPHY_ACTIVE; | |
2293 | ||
8feceb67 | 2294 | /* setup initial channel */ |
f078f209 | 2295 | |
82880a7c | 2296 | sc->chan_idx = curchan->hw_value; |
f078f209 | 2297 | |
82880a7c | 2298 | init_channel = ath_get_curchannel(sc, hw); |
ff37e337 S |
2299 | |
2300 | /* Reset SERDES registers */ | |
af03abec | 2301 | ath9k_hw_configpcipowersave(ah, 0, 0); |
ff37e337 S |
2302 | |
2303 | /* | |
2304 | * The basic interface to setting the hardware in a good | |
2305 | * state is ``reset''. On return the hardware is known to | |
2306 | * be powered up and with interrupts disabled. This must | |
2307 | * be followed by initialization of the appropriate bits | |
2308 | * and then setup of the interrupt mask. | |
2309 | */ | |
2310 | spin_lock_bh(&sc->sc_resetlock); | |
af03abec | 2311 | r = ath9k_hw_reset(ah, init_channel, false); |
ae8d2858 | 2312 | if (r) { |
c46917bb LR |
2313 | ath_print(common, ATH_DBG_FATAL, |
2314 | "Unable to reset hardware; reset status %d " | |
2315 | "(freq %u MHz)\n", r, | |
2316 | curchan->center_freq); | |
ff37e337 | 2317 | spin_unlock_bh(&sc->sc_resetlock); |
141b38b6 | 2318 | goto mutex_unlock; |
ff37e337 S |
2319 | } |
2320 | spin_unlock_bh(&sc->sc_resetlock); | |
2321 | ||
2322 | /* | |
2323 | * This is needed only to setup initial state | |
2324 | * but it's best done after a reset. | |
2325 | */ | |
2326 | ath_update_txpow(sc); | |
8feceb67 | 2327 | |
ff37e337 S |
2328 | /* |
2329 | * Setup the hardware after reset: | |
2330 | * The receive engine is set going. | |
2331 | * Frame transmit is handled entirely | |
2332 | * in the frame output path; there's nothing to do | |
2333 | * here except setup the interrupt mask. | |
2334 | */ | |
2335 | if (ath_startrecv(sc) != 0) { | |
c46917bb LR |
2336 | ath_print(common, ATH_DBG_FATAL, |
2337 | "Unable to start recv logic\n"); | |
141b38b6 S |
2338 | r = -EIO; |
2339 | goto mutex_unlock; | |
f078f209 | 2340 | } |
8feceb67 | 2341 | |
ff37e337 | 2342 | /* Setup our intr mask. */ |
17d7904d | 2343 | sc->imask = ATH9K_INT_RX | ATH9K_INT_TX |
ff37e337 S |
2344 | | ATH9K_INT_RXEOL | ATH9K_INT_RXORN |
2345 | | ATH9K_INT_FATAL | ATH9K_INT_GLOBAL; | |
2346 | ||
af03abec | 2347 | if (ah->caps.hw_caps & ATH9K_HW_CAP_GTT) |
17d7904d | 2348 | sc->imask |= ATH9K_INT_GTT; |
ff37e337 | 2349 | |
af03abec | 2350 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) |
17d7904d | 2351 | sc->imask |= ATH9K_INT_CST; |
ff37e337 | 2352 | |
ce111bad | 2353 | ath_cache_conf_rate(sc, &hw->conf); |
ff37e337 S |
2354 | |
2355 | sc->sc_flags &= ~SC_OP_INVALID; | |
2356 | ||
2357 | /* Disable BMISS interrupt when we're not associated */ | |
17d7904d | 2358 | sc->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); |
af03abec | 2359 | ath9k_hw_set_interrupts(ah, sc->imask); |
ff37e337 | 2360 | |
bce048d7 | 2361 | ieee80211_wake_queues(hw); |
ff37e337 | 2362 | |
42935eca | 2363 | ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); |
164ace38 | 2364 | |
766ec4a9 LR |
2365 | if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) && |
2366 | !ah->btcoex_hw.enabled) { | |
5e197292 LR |
2367 | ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, |
2368 | AR_STOMP_LOW_WLAN_WGHT); | |
af03abec | 2369 | ath9k_hw_btcoex_enable(ah); |
f985ad12 | 2370 | |
5bb12791 LR |
2371 | if (common->bus_ops->bt_coex_prep) |
2372 | common->bus_ops->bt_coex_prep(common); | |
766ec4a9 | 2373 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
75d7839f | 2374 | ath9k_btcoex_timer_resume(sc); |
1773912b VT |
2375 | } |
2376 | ||
141b38b6 S |
2377 | mutex_unlock: |
2378 | mutex_unlock(&sc->mutex); | |
2379 | ||
ae8d2858 | 2380 | return r; |
f078f209 LR |
2381 | } |
2382 | ||
8feceb67 VT |
2383 | static int ath9k_tx(struct ieee80211_hw *hw, |
2384 | struct sk_buff *skb) | |
f078f209 | 2385 | { |
528f0c6b | 2386 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
bce048d7 JM |
2387 | struct ath_wiphy *aphy = hw->priv; |
2388 | struct ath_softc *sc = aphy->sc; | |
c46917bb | 2389 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
528f0c6b | 2390 | struct ath_tx_control txctl; |
8feceb67 | 2391 | int hdrlen, padsize; |
528f0c6b | 2392 | |
8089cc47 | 2393 | if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) { |
c46917bb LR |
2394 | ath_print(common, ATH_DBG_XMIT, |
2395 | "ath9k: %s: TX in unexpected wiphy state " | |
2396 | "%d\n", wiphy_name(hw->wiphy), aphy->state); | |
ee166a0e JM |
2397 | goto exit; |
2398 | } | |
2399 | ||
96148326 | 2400 | if (sc->ps_enabled) { |
dc8c4585 JM |
2401 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
2402 | /* | |
2403 | * mac80211 does not set PM field for normal data frames, so we | |
2404 | * need to update that based on the current PS mode. | |
2405 | */ | |
2406 | if (ieee80211_is_data(hdr->frame_control) && | |
2407 | !ieee80211_is_nullfunc(hdr->frame_control) && | |
2408 | !ieee80211_has_pm(hdr->frame_control)) { | |
c46917bb LR |
2409 | ath_print(common, ATH_DBG_PS, "Add PM=1 for a TX frame " |
2410 | "while in PS mode\n"); | |
dc8c4585 JM |
2411 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); |
2412 | } | |
2413 | } | |
2414 | ||
9a23f9ca JM |
2415 | if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) { |
2416 | /* | |
2417 | * We are using PS-Poll and mac80211 can request TX while in | |
2418 | * power save mode. Need to wake up hardware for the TX to be | |
2419 | * completed and if needed, also for RX of buffered frames. | |
2420 | */ | |
2421 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
2422 | ath9k_ps_wakeup(sc); | |
2423 | ath9k_hw_setrxabort(sc->sc_ah, 0); | |
2424 | if (ieee80211_is_pspoll(hdr->frame_control)) { | |
c46917bb LR |
2425 | ath_print(common, ATH_DBG_PS, |
2426 | "Sending PS-Poll to pick a buffered frame\n"); | |
9a23f9ca JM |
2427 | sc->sc_flags |= SC_OP_WAIT_FOR_PSPOLL_DATA; |
2428 | } else { | |
c46917bb LR |
2429 | ath_print(common, ATH_DBG_PS, |
2430 | "Wake up to complete TX\n"); | |
9a23f9ca JM |
2431 | sc->sc_flags |= SC_OP_WAIT_FOR_TX_ACK; |
2432 | } | |
2433 | /* | |
2434 | * The actual restore operation will happen only after | |
2435 | * the sc_flags bit is cleared. We are just dropping | |
2436 | * the ps_usecount here. | |
2437 | */ | |
2438 | ath9k_ps_restore(sc); | |
2439 | } | |
2440 | ||
528f0c6b | 2441 | memset(&txctl, 0, sizeof(struct ath_tx_control)); |
f078f209 | 2442 | |
8feceb67 VT |
2443 | /* |
2444 | * As a temporary workaround, assign seq# here; this will likely need | |
2445 | * to be cleaned up to work better with Beacon transmission and virtual | |
2446 | * BSSes. | |
2447 | */ | |
2448 | if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { | |
2449 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
2450 | if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) | |
b77f483f | 2451 | sc->tx.seq_no += 0x10; |
8feceb67 | 2452 | hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
b77f483f | 2453 | hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no); |
8feceb67 | 2454 | } |
f078f209 | 2455 | |
8feceb67 VT |
2456 | /* Add the padding after the header if this is not already done */ |
2457 | hdrlen = ieee80211_get_hdrlen_from_skb(skb); | |
2458 | if (hdrlen & 3) { | |
2459 | padsize = hdrlen % 4; | |
2460 | if (skb_headroom(skb) < padsize) | |
2461 | return -1; | |
2462 | skb_push(skb, padsize); | |
2463 | memmove(skb->data, skb->data + padsize, hdrlen); | |
2464 | } | |
2465 | ||
528f0c6b S |
2466 | /* Check if a tx queue is available */ |
2467 | ||
2468 | txctl.txq = ath_test_get_txq(sc, skb); | |
2469 | if (!txctl.txq) | |
2470 | goto exit; | |
2471 | ||
c46917bb | 2472 | ath_print(common, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); |
8feceb67 | 2473 | |
c52f33d0 | 2474 | if (ath_tx_start(hw, skb, &txctl) != 0) { |
c46917bb | 2475 | ath_print(common, ATH_DBG_XMIT, "TX failed\n"); |
528f0c6b | 2476 | goto exit; |
8feceb67 VT |
2477 | } |
2478 | ||
528f0c6b S |
2479 | return 0; |
2480 | exit: | |
2481 | dev_kfree_skb_any(skb); | |
8feceb67 | 2482 | return 0; |
f078f209 LR |
2483 | } |
2484 | ||
75d7839f LR |
2485 | /* |
2486 | * Pause btcoex timer and bt duty cycle timer | |
2487 | */ | |
2488 | static void ath9k_btcoex_timer_pause(struct ath_softc *sc) | |
2489 | { | |
2490 | struct ath_btcoex *btcoex = &sc->btcoex; | |
2491 | struct ath_hw *ah = sc->sc_ah; | |
2492 | ||
2493 | del_timer_sync(&btcoex->period_timer); | |
2494 | ||
2495 | if (btcoex->hw_timer_enabled) | |
cd9bf689 | 2496 | ath9k_gen_timer_stop(ah, btcoex->no_stomp_timer); |
75d7839f LR |
2497 | |
2498 | btcoex->hw_timer_enabled = false; | |
2499 | } | |
2500 | ||
8feceb67 | 2501 | static void ath9k_stop(struct ieee80211_hw *hw) |
f078f209 | 2502 | { |
bce048d7 JM |
2503 | struct ath_wiphy *aphy = hw->priv; |
2504 | struct ath_softc *sc = aphy->sc; | |
af03abec | 2505 | struct ath_hw *ah = sc->sc_ah; |
c46917bb | 2506 | struct ath_common *common = ath9k_hw_common(ah); |
f078f209 | 2507 | |
4c483817 S |
2508 | mutex_lock(&sc->mutex); |
2509 | ||
9580a222 JM |
2510 | aphy->state = ATH_WIPHY_INACTIVE; |
2511 | ||
c94dbff7 LR |
2512 | cancel_delayed_work_sync(&sc->ath_led_blink_work); |
2513 | cancel_delayed_work_sync(&sc->tx_complete_work); | |
2514 | ||
2515 | if (!sc->num_sec_wiphy) { | |
2516 | cancel_delayed_work_sync(&sc->wiphy_work); | |
2517 | cancel_work_sync(&sc->chan_work); | |
2518 | } | |
2519 | ||
9c84b797 | 2520 | if (sc->sc_flags & SC_OP_INVALID) { |
c46917bb | 2521 | ath_print(common, ATH_DBG_ANY, "Device not present\n"); |
4c483817 | 2522 | mutex_unlock(&sc->mutex); |
9c84b797 S |
2523 | return; |
2524 | } | |
8feceb67 | 2525 | |
9580a222 JM |
2526 | if (ath9k_wiphy_started(sc)) { |
2527 | mutex_unlock(&sc->mutex); | |
2528 | return; /* another wiphy still in use */ | |
2529 | } | |
2530 | ||
766ec4a9 | 2531 | if (ah->btcoex_hw.enabled) { |
af03abec | 2532 | ath9k_hw_btcoex_disable(ah); |
766ec4a9 | 2533 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
75d7839f | 2534 | ath9k_btcoex_timer_pause(sc); |
1773912b VT |
2535 | } |
2536 | ||
ff37e337 S |
2537 | /* make sure h/w will not generate any interrupt |
2538 | * before setting the invalid flag. */ | |
af03abec | 2539 | ath9k_hw_set_interrupts(ah, 0); |
ff37e337 S |
2540 | |
2541 | if (!(sc->sc_flags & SC_OP_INVALID)) { | |
043a0405 | 2542 | ath_drain_all_txq(sc, false); |
ff37e337 | 2543 | ath_stoprecv(sc); |
af03abec | 2544 | ath9k_hw_phy_disable(ah); |
ff37e337 | 2545 | } else |
b77f483f | 2546 | sc->rx.rxlink = NULL; |
ff37e337 | 2547 | |
ff37e337 | 2548 | /* disable HAL and put h/w to sleep */ |
af03abec LR |
2549 | ath9k_hw_disable(ah); |
2550 | ath9k_hw_configpcipowersave(ah, 1, 1); | |
9ecdef4b | 2551 | ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP); |
ff37e337 S |
2552 | |
2553 | sc->sc_flags |= SC_OP_INVALID; | |
500c064d | 2554 | |
141b38b6 S |
2555 | mutex_unlock(&sc->mutex); |
2556 | ||
c46917bb | 2557 | ath_print(common, ATH_DBG_CONFIG, "Driver halt\n"); |
f078f209 LR |
2558 | } |
2559 | ||
8feceb67 VT |
2560 | static int ath9k_add_interface(struct ieee80211_hw *hw, |
2561 | struct ieee80211_if_init_conf *conf) | |
f078f209 | 2562 | { |
bce048d7 JM |
2563 | struct ath_wiphy *aphy = hw->priv; |
2564 | struct ath_softc *sc = aphy->sc; | |
c46917bb | 2565 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
17d7904d | 2566 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
d97809db | 2567 | enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; |
2c3db3d5 | 2568 | int ret = 0; |
8feceb67 | 2569 | |
141b38b6 S |
2570 | mutex_lock(&sc->mutex); |
2571 | ||
8ca21f01 JM |
2572 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) && |
2573 | sc->nvifs > 0) { | |
2574 | ret = -ENOBUFS; | |
2575 | goto out; | |
2576 | } | |
2577 | ||
8feceb67 | 2578 | switch (conf->type) { |
05c914fe | 2579 | case NL80211_IFTYPE_STATION: |
d97809db | 2580 | ic_opmode = NL80211_IFTYPE_STATION; |
f078f209 | 2581 | break; |
05c914fe | 2582 | case NL80211_IFTYPE_ADHOC: |
05c914fe | 2583 | case NL80211_IFTYPE_AP: |
9cb5412b | 2584 | case NL80211_IFTYPE_MESH_POINT: |
2c3db3d5 JM |
2585 | if (sc->nbcnvifs >= ATH_BCBUF) { |
2586 | ret = -ENOBUFS; | |
2587 | goto out; | |
2588 | } | |
9cb5412b | 2589 | ic_opmode = conf->type; |
f078f209 LR |
2590 | break; |
2591 | default: | |
c46917bb | 2592 | ath_print(common, ATH_DBG_FATAL, |
04bd4638 | 2593 | "Interface type %d not yet supported\n", conf->type); |
2c3db3d5 JM |
2594 | ret = -EOPNOTSUPP; |
2595 | goto out; | |
f078f209 LR |
2596 | } |
2597 | ||
c46917bb LR |
2598 | ath_print(common, ATH_DBG_CONFIG, |
2599 | "Attach a VIF of type: %d\n", ic_opmode); | |
8feceb67 | 2600 | |
17d7904d | 2601 | /* Set the VIF opmode */ |
5640b08e S |
2602 | avp->av_opmode = ic_opmode; |
2603 | avp->av_bslot = -1; | |
2604 | ||
2c3db3d5 | 2605 | sc->nvifs++; |
8ca21f01 JM |
2606 | |
2607 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) | |
2608 | ath9k_set_bssid_mask(hw); | |
2609 | ||
2c3db3d5 JM |
2610 | if (sc->nvifs > 1) |
2611 | goto out; /* skip global settings for secondary vif */ | |
2612 | ||
b238e90e | 2613 | if (ic_opmode == NL80211_IFTYPE_AP) { |
5640b08e | 2614 | ath9k_hw_set_tsfadjust(sc->sc_ah, 1); |
b238e90e S |
2615 | sc->sc_flags |= SC_OP_TSF_RESET; |
2616 | } | |
5640b08e | 2617 | |
5640b08e | 2618 | /* Set the device opmode */ |
2660b81a | 2619 | sc->sc_ah->opmode = ic_opmode; |
5640b08e | 2620 | |
4e30ffa2 VN |
2621 | /* |
2622 | * Enable MIB interrupts when there are hardware phy counters. | |
2623 | * Note we only do this (at the moment) for station mode. | |
2624 | */ | |
4af9cf4f | 2625 | if ((conf->type == NL80211_IFTYPE_STATION) || |
9cb5412b PE |
2626 | (conf->type == NL80211_IFTYPE_ADHOC) || |
2627 | (conf->type == NL80211_IFTYPE_MESH_POINT)) { | |
1aa8e847 | 2628 | sc->imask |= ATH9K_INT_MIB; |
4af9cf4f S |
2629 | sc->imask |= ATH9K_INT_TSFOOR; |
2630 | } | |
2631 | ||
17d7904d | 2632 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
4e30ffa2 | 2633 | |
f38faa31 SB |
2634 | if (conf->type == NL80211_IFTYPE_AP || |
2635 | conf->type == NL80211_IFTYPE_ADHOC || | |
2636 | conf->type == NL80211_IFTYPE_MONITOR) | |
415f738e | 2637 | ath_start_ani(sc); |
6f255425 | 2638 | |
2c3db3d5 | 2639 | out: |
141b38b6 | 2640 | mutex_unlock(&sc->mutex); |
2c3db3d5 | 2641 | return ret; |
f078f209 LR |
2642 | } |
2643 | ||
8feceb67 VT |
2644 | static void ath9k_remove_interface(struct ieee80211_hw *hw, |
2645 | struct ieee80211_if_init_conf *conf) | |
f078f209 | 2646 | { |
bce048d7 JM |
2647 | struct ath_wiphy *aphy = hw->priv; |
2648 | struct ath_softc *sc = aphy->sc; | |
c46917bb | 2649 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
17d7904d | 2650 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
2c3db3d5 | 2651 | int i; |
f078f209 | 2652 | |
c46917bb | 2653 | ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n"); |
f078f209 | 2654 | |
141b38b6 S |
2655 | mutex_lock(&sc->mutex); |
2656 | ||
6f255425 | 2657 | /* Stop ANI */ |
17d7904d | 2658 | del_timer_sync(&sc->ani.timer); |
580f0b8a | 2659 | |
8feceb67 | 2660 | /* Reclaim beacon resources */ |
9cb5412b PE |
2661 | if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) || |
2662 | (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) || | |
2663 | (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) { | |
b77f483f | 2664 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
8feceb67 | 2665 | ath_beacon_return(sc, avp); |
580f0b8a | 2666 | } |
f078f209 | 2667 | |
8feceb67 | 2668 | sc->sc_flags &= ~SC_OP_BEACONS; |
f078f209 | 2669 | |
2c3db3d5 JM |
2670 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
2671 | if (sc->beacon.bslot[i] == conf->vif) { | |
2672 | printk(KERN_DEBUG "%s: vif had allocated beacon " | |
2673 | "slot\n", __func__); | |
2674 | sc->beacon.bslot[i] = NULL; | |
c52f33d0 | 2675 | sc->beacon.bslot_aphy[i] = NULL; |
2c3db3d5 JM |
2676 | } |
2677 | } | |
2678 | ||
17d7904d | 2679 | sc->nvifs--; |
141b38b6 S |
2680 | |
2681 | mutex_unlock(&sc->mutex); | |
f078f209 LR |
2682 | } |
2683 | ||
e8975581 | 2684 | static int ath9k_config(struct ieee80211_hw *hw, u32 changed) |
f078f209 | 2685 | { |
bce048d7 JM |
2686 | struct ath_wiphy *aphy = hw->priv; |
2687 | struct ath_softc *sc = aphy->sc; | |
c46917bb | 2688 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
e8975581 | 2689 | struct ieee80211_conf *conf = &hw->conf; |
8782b41d | 2690 | struct ath_hw *ah = sc->sc_ah; |
64839170 | 2691 | bool all_wiphys_idle = false, disable_radio = false; |
f078f209 | 2692 | |
aa33de09 | 2693 | mutex_lock(&sc->mutex); |
141b38b6 | 2694 | |
64839170 LR |
2695 | /* Leave this as the first check */ |
2696 | if (changed & IEEE80211_CONF_CHANGE_IDLE) { | |
2697 | ||
2698 | spin_lock_bh(&sc->wiphy_lock); | |
2699 | all_wiphys_idle = ath9k_all_wiphys_idle(sc); | |
2700 | spin_unlock_bh(&sc->wiphy_lock); | |
2701 | ||
2702 | if (conf->flags & IEEE80211_CONF_IDLE){ | |
2703 | if (all_wiphys_idle) | |
2704 | disable_radio = true; | |
2705 | } | |
2706 | else if (all_wiphys_idle) { | |
2707 | ath_radio_enable(sc); | |
c46917bb LR |
2708 | ath_print(common, ATH_DBG_CONFIG, |
2709 | "not-idle: enabling radio\n"); | |
64839170 LR |
2710 | } |
2711 | } | |
2712 | ||
3cbb5dd7 VN |
2713 | if (changed & IEEE80211_CONF_CHANGE_PS) { |
2714 | if (conf->flags & IEEE80211_CONF_PS) { | |
8782b41d VN |
2715 | if (!(ah->caps.hw_caps & |
2716 | ATH9K_HW_CAP_AUTOSLEEP)) { | |
2717 | if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { | |
2718 | sc->imask |= ATH9K_INT_TIM_TIMER; | |
2719 | ath9k_hw_set_interrupts(sc->sc_ah, | |
2720 | sc->imask); | |
2721 | } | |
2722 | ath9k_hw_setrxabort(sc->sc_ah, 1); | |
3cbb5dd7 | 2723 | } |
96148326 | 2724 | sc->ps_enabled = true; |
3cbb5dd7 | 2725 | } else { |
96148326 | 2726 | sc->ps_enabled = false; |
9ecdef4b | 2727 | ath9k_setpower(sc, ATH9K_PM_AWAKE); |
8782b41d VN |
2728 | if (!(ah->caps.hw_caps & |
2729 | ATH9K_HW_CAP_AUTOSLEEP)) { | |
2730 | ath9k_hw_setrxabort(sc->sc_ah, 0); | |
9a23f9ca JM |
2731 | sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | |
2732 | SC_OP_WAIT_FOR_CAB | | |
2733 | SC_OP_WAIT_FOR_PSPOLL_DATA | | |
2734 | SC_OP_WAIT_FOR_TX_ACK); | |
8782b41d VN |
2735 | if (sc->imask & ATH9K_INT_TIM_TIMER) { |
2736 | sc->imask &= ~ATH9K_INT_TIM_TIMER; | |
2737 | ath9k_hw_set_interrupts(sc->sc_ah, | |
2738 | sc->imask); | |
2739 | } | |
3cbb5dd7 VN |
2740 | } |
2741 | } | |
2742 | } | |
2743 | ||
4797938c | 2744 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
99405f93 | 2745 | struct ieee80211_channel *curchan = hw->conf.channel; |
5f8e077c | 2746 | int pos = curchan->hw_value; |
ae5eb026 | 2747 | |
0e2dedf9 JM |
2748 | aphy->chan_idx = pos; |
2749 | aphy->chan_is_ht = conf_is_ht(conf); | |
2750 | ||
8089cc47 JM |
2751 | if (aphy->state == ATH_WIPHY_SCAN || |
2752 | aphy->state == ATH_WIPHY_ACTIVE) | |
2753 | ath9k_wiphy_pause_all_forced(sc, aphy); | |
2754 | else { | |
2755 | /* | |
2756 | * Do not change operational channel based on a paused | |
2757 | * wiphy changes. | |
2758 | */ | |
2759 | goto skip_chan_change; | |
2760 | } | |
0e2dedf9 | 2761 | |
c46917bb LR |
2762 | ath_print(common, ATH_DBG_CONFIG, "Set channel: %d MHz\n", |
2763 | curchan->center_freq); | |
f078f209 | 2764 | |
5f8e077c | 2765 | /* XXX: remove me eventualy */ |
0e2dedf9 | 2766 | ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]); |
e11602b7 | 2767 | |
ecf70441 | 2768 | ath_update_chainmask(sc, conf_is_ht(conf)); |
86060f0d | 2769 | |
0e2dedf9 | 2770 | if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { |
c46917bb LR |
2771 | ath_print(common, ATH_DBG_FATAL, |
2772 | "Unable to set channel\n"); | |
aa33de09 | 2773 | mutex_unlock(&sc->mutex); |
e11602b7 S |
2774 | return -EINVAL; |
2775 | } | |
094d05dc | 2776 | } |
f078f209 | 2777 | |
8089cc47 | 2778 | skip_chan_change: |
5c020dc6 | 2779 | if (changed & IEEE80211_CONF_CHANGE_POWER) |
17d7904d | 2780 | sc->config.txpowlimit = 2 * conf->power_level; |
f078f209 | 2781 | |
64839170 | 2782 | if (disable_radio) { |
c46917bb | 2783 | ath_print(common, ATH_DBG_CONFIG, "idle: disabling radio\n"); |
64839170 LR |
2784 | ath_radio_disable(sc); |
2785 | } | |
2786 | ||
aa33de09 | 2787 | mutex_unlock(&sc->mutex); |
141b38b6 | 2788 | |
f078f209 LR |
2789 | return 0; |
2790 | } | |
2791 | ||
8feceb67 VT |
2792 | #define SUPPORTED_FILTERS \ |
2793 | (FIF_PROMISC_IN_BSS | \ | |
2794 | FIF_ALLMULTI | \ | |
2795 | FIF_CONTROL | \ | |
af6a3fc7 | 2796 | FIF_PSPOLL | \ |
8feceb67 VT |
2797 | FIF_OTHER_BSS | \ |
2798 | FIF_BCN_PRBRESP_PROMISC | \ | |
2799 | FIF_FCSFAIL) | |
c83be688 | 2800 | |
8feceb67 VT |
2801 | /* FIXME: sc->sc_full_reset ? */ |
2802 | static void ath9k_configure_filter(struct ieee80211_hw *hw, | |
2803 | unsigned int changed_flags, | |
2804 | unsigned int *total_flags, | |
3ac64bee | 2805 | u64 multicast) |
8feceb67 | 2806 | { |
bce048d7 JM |
2807 | struct ath_wiphy *aphy = hw->priv; |
2808 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2809 | u32 rfilt; |
f078f209 | 2810 | |
8feceb67 VT |
2811 | changed_flags &= SUPPORTED_FILTERS; |
2812 | *total_flags &= SUPPORTED_FILTERS; | |
f078f209 | 2813 | |
b77f483f | 2814 | sc->rx.rxfilter = *total_flags; |
aa68aeaa | 2815 | ath9k_ps_wakeup(sc); |
8feceb67 VT |
2816 | rfilt = ath_calcrxfilter(sc); |
2817 | ath9k_hw_setrxfilter(sc->sc_ah, rfilt); | |
aa68aeaa | 2818 | ath9k_ps_restore(sc); |
f078f209 | 2819 | |
c46917bb LR |
2820 | ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG, |
2821 | "Set HW RX filter: 0x%x\n", rfilt); | |
8feceb67 | 2822 | } |
f078f209 | 2823 | |
8feceb67 VT |
2824 | static void ath9k_sta_notify(struct ieee80211_hw *hw, |
2825 | struct ieee80211_vif *vif, | |
2826 | enum sta_notify_cmd cmd, | |
17741cdc | 2827 | struct ieee80211_sta *sta) |
8feceb67 | 2828 | { |
bce048d7 JM |
2829 | struct ath_wiphy *aphy = hw->priv; |
2830 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2831 | |
8feceb67 VT |
2832 | switch (cmd) { |
2833 | case STA_NOTIFY_ADD: | |
5640b08e | 2834 | ath_node_attach(sc, sta); |
8feceb67 VT |
2835 | break; |
2836 | case STA_NOTIFY_REMOVE: | |
b5aa9bf9 | 2837 | ath_node_detach(sc, sta); |
8feceb67 VT |
2838 | break; |
2839 | default: | |
2840 | break; | |
2841 | } | |
f078f209 LR |
2842 | } |
2843 | ||
141b38b6 | 2844 | static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
8feceb67 | 2845 | const struct ieee80211_tx_queue_params *params) |
f078f209 | 2846 | { |
bce048d7 JM |
2847 | struct ath_wiphy *aphy = hw->priv; |
2848 | struct ath_softc *sc = aphy->sc; | |
c46917bb | 2849 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
8feceb67 VT |
2850 | struct ath9k_tx_queue_info qi; |
2851 | int ret = 0, qnum; | |
f078f209 | 2852 | |
8feceb67 VT |
2853 | if (queue >= WME_NUM_AC) |
2854 | return 0; | |
f078f209 | 2855 | |
141b38b6 S |
2856 | mutex_lock(&sc->mutex); |
2857 | ||
1ffb0610 S |
2858 | memset(&qi, 0, sizeof(struct ath9k_tx_queue_info)); |
2859 | ||
8feceb67 VT |
2860 | qi.tqi_aifs = params->aifs; |
2861 | qi.tqi_cwmin = params->cw_min; | |
2862 | qi.tqi_cwmax = params->cw_max; | |
2863 | qi.tqi_burstTime = params->txop; | |
2864 | qnum = ath_get_hal_qnum(queue, sc); | |
f078f209 | 2865 | |
c46917bb LR |
2866 | ath_print(common, ATH_DBG_CONFIG, |
2867 | "Configure tx [queue/halq] [%d/%d], " | |
2868 | "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", | |
2869 | queue, qnum, params->aifs, params->cw_min, | |
2870 | params->cw_max, params->txop); | |
f078f209 | 2871 | |
8feceb67 VT |
2872 | ret = ath_txq_update(sc, qnum, &qi); |
2873 | if (ret) | |
c46917bb | 2874 | ath_print(common, ATH_DBG_FATAL, "TXQ Update failed\n"); |
f078f209 | 2875 | |
141b38b6 S |
2876 | mutex_unlock(&sc->mutex); |
2877 | ||
8feceb67 VT |
2878 | return ret; |
2879 | } | |
f078f209 | 2880 | |
8feceb67 VT |
2881 | static int ath9k_set_key(struct ieee80211_hw *hw, |
2882 | enum set_key_cmd cmd, | |
dc822b5d JB |
2883 | struct ieee80211_vif *vif, |
2884 | struct ieee80211_sta *sta, | |
8feceb67 VT |
2885 | struct ieee80211_key_conf *key) |
2886 | { | |
bce048d7 JM |
2887 | struct ath_wiphy *aphy = hw->priv; |
2888 | struct ath_softc *sc = aphy->sc; | |
c46917bb | 2889 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
8feceb67 | 2890 | int ret = 0; |
f078f209 | 2891 | |
b3bd89ce JM |
2892 | if (modparam_nohwcrypt) |
2893 | return -ENOSPC; | |
2894 | ||
141b38b6 | 2895 | mutex_lock(&sc->mutex); |
3cbb5dd7 | 2896 | ath9k_ps_wakeup(sc); |
c46917bb | 2897 | ath_print(common, ATH_DBG_CONFIG, "Set HW Key\n"); |
f078f209 | 2898 | |
8feceb67 VT |
2899 | switch (cmd) { |
2900 | case SET_KEY: | |
3f53dd64 | 2901 | ret = ath_key_config(sc, vif, sta, key); |
6ace2891 JM |
2902 | if (ret >= 0) { |
2903 | key->hw_key_idx = ret; | |
8feceb67 VT |
2904 | /* push IV and Michael MIC generation to stack */ |
2905 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
2906 | if (key->alg == ALG_TKIP) | |
2907 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
0ced0e17 JM |
2908 | if (sc->sc_ah->sw_mgmt_crypto && key->alg == ALG_CCMP) |
2909 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; | |
6ace2891 | 2910 | ret = 0; |
8feceb67 VT |
2911 | } |
2912 | break; | |
2913 | case DISABLE_KEY: | |
2914 | ath_key_delete(sc, key); | |
8feceb67 VT |
2915 | break; |
2916 | default: | |
2917 | ret = -EINVAL; | |
2918 | } | |
f078f209 | 2919 | |
3cbb5dd7 | 2920 | ath9k_ps_restore(sc); |
141b38b6 S |
2921 | mutex_unlock(&sc->mutex); |
2922 | ||
8feceb67 VT |
2923 | return ret; |
2924 | } | |
f078f209 | 2925 | |
8feceb67 VT |
2926 | static void ath9k_bss_info_changed(struct ieee80211_hw *hw, |
2927 | struct ieee80211_vif *vif, | |
2928 | struct ieee80211_bss_conf *bss_conf, | |
2929 | u32 changed) | |
2930 | { | |
bce048d7 JM |
2931 | struct ath_wiphy *aphy = hw->priv; |
2932 | struct ath_softc *sc = aphy->sc; | |
2d0ddec5 | 2933 | struct ath_hw *ah = sc->sc_ah; |
1510718d | 2934 | struct ath_common *common = ath9k_hw_common(ah); |
2d0ddec5 JB |
2935 | struct ath_vif *avp = (void *)vif->drv_priv; |
2936 | u32 rfilt = 0; | |
2937 | int error, i; | |
f078f209 | 2938 | |
141b38b6 S |
2939 | mutex_lock(&sc->mutex); |
2940 | ||
2d0ddec5 JB |
2941 | /* |
2942 | * TODO: Need to decide which hw opmode to use for | |
2943 | * multi-interface cases | |
2944 | * XXX: This belongs into add_interface! | |
2945 | */ | |
2946 | if (vif->type == NL80211_IFTYPE_AP && | |
2947 | ah->opmode != NL80211_IFTYPE_AP) { | |
2948 | ah->opmode = NL80211_IFTYPE_STATION; | |
2949 | ath9k_hw_setopmode(ah); | |
1510718d LR |
2950 | memcpy(common->curbssid, common->macaddr, ETH_ALEN); |
2951 | common->curaid = 0; | |
f2b2143e | 2952 | ath9k_hw_write_associd(ah); |
2d0ddec5 JB |
2953 | /* Request full reset to get hw opmode changed properly */ |
2954 | sc->sc_flags |= SC_OP_FULL_RESET; | |
2955 | } | |
2956 | ||
2957 | if ((changed & BSS_CHANGED_BSSID) && | |
2958 | !is_zero_ether_addr(bss_conf->bssid)) { | |
2959 | switch (vif->type) { | |
2960 | case NL80211_IFTYPE_STATION: | |
2961 | case NL80211_IFTYPE_ADHOC: | |
2962 | case NL80211_IFTYPE_MESH_POINT: | |
2963 | /* Set BSSID */ | |
1510718d | 2964 | memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); |
2d0ddec5 | 2965 | memcpy(avp->bssid, bss_conf->bssid, ETH_ALEN); |
1510718d | 2966 | common->curaid = 0; |
f2b2143e | 2967 | ath9k_hw_write_associd(ah); |
2d0ddec5 JB |
2968 | |
2969 | /* Set aggregation protection mode parameters */ | |
2970 | sc->config.ath_aggr_prot = 0; | |
2971 | ||
c46917bb LR |
2972 | ath_print(common, ATH_DBG_CONFIG, |
2973 | "RX filter 0x%x bssid %pM aid 0x%x\n", | |
2974 | rfilt, common->curbssid, common->curaid); | |
2d0ddec5 JB |
2975 | |
2976 | /* need to reconfigure the beacon */ | |
2977 | sc->sc_flags &= ~SC_OP_BEACONS ; | |
2978 | ||
2979 | break; | |
2980 | default: | |
2981 | break; | |
2982 | } | |
2983 | } | |
2984 | ||
2985 | if ((vif->type == NL80211_IFTYPE_ADHOC) || | |
2986 | (vif->type == NL80211_IFTYPE_AP) || | |
2987 | (vif->type == NL80211_IFTYPE_MESH_POINT)) { | |
2988 | if ((changed & BSS_CHANGED_BEACON) || | |
2989 | (changed & BSS_CHANGED_BEACON_ENABLED && | |
2990 | bss_conf->enable_beacon)) { | |
2991 | /* | |
2992 | * Allocate and setup the beacon frame. | |
2993 | * | |
2994 | * Stop any previous beacon DMA. This may be | |
2995 | * necessary, for example, when an ibss merge | |
2996 | * causes reconfiguration; we may be called | |
2997 | * with beacon transmission active. | |
2998 | */ | |
2999 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); | |
3000 | ||
3001 | error = ath_beacon_alloc(aphy, vif); | |
3002 | if (!error) | |
3003 | ath_beacon_config(sc, vif); | |
3004 | } | |
3005 | } | |
3006 | ||
3007 | /* Check for WLAN_CAPABILITY_PRIVACY ? */ | |
3008 | if ((avp->av_opmode != NL80211_IFTYPE_STATION)) { | |
3009 | for (i = 0; i < IEEE80211_WEP_NKID; i++) | |
3010 | if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i)) | |
3011 | ath9k_hw_keysetmac(sc->sc_ah, | |
3012 | (u16)i, | |
1510718d | 3013 | common->curbssid); |
2d0ddec5 JB |
3014 | } |
3015 | ||
3016 | /* Only legacy IBSS for now */ | |
3017 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
3018 | ath_update_chainmask(sc, 0); | |
3019 | ||
8feceb67 | 3020 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
c46917bb LR |
3021 | ath_print(common, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", |
3022 | bss_conf->use_short_preamble); | |
8feceb67 VT |
3023 | if (bss_conf->use_short_preamble) |
3024 | sc->sc_flags |= SC_OP_PREAMBLE_SHORT; | |
3025 | else | |
3026 | sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; | |
3027 | } | |
f078f209 | 3028 | |
8feceb67 | 3029 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
c46917bb LR |
3030 | ath_print(common, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", |
3031 | bss_conf->use_cts_prot); | |
8feceb67 VT |
3032 | if (bss_conf->use_cts_prot && |
3033 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) | |
3034 | sc->sc_flags |= SC_OP_PROTECT_ENABLE; | |
3035 | else | |
3036 | sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; | |
3037 | } | |
f078f209 | 3038 | |
8feceb67 | 3039 | if (changed & BSS_CHANGED_ASSOC) { |
c46917bb | 3040 | ath_print(common, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", |
8feceb67 | 3041 | bss_conf->assoc); |
5640b08e | 3042 | ath9k_bss_assoc_info(sc, vif, bss_conf); |
8feceb67 | 3043 | } |
141b38b6 | 3044 | |
57c4d7b4 JB |
3045 | /* |
3046 | * The HW TSF has to be reset when the beacon interval changes. | |
3047 | * We set the flag here, and ath_beacon_config_ap() would take this | |
3048 | * into account when it gets called through the subsequent | |
3049 | * config_interface() call - with IFCC_BEACON in the changed field. | |
3050 | */ | |
3051 | ||
3052 | if (changed & BSS_CHANGED_BEACON_INT) { | |
3053 | sc->sc_flags |= SC_OP_TSF_RESET; | |
3054 | sc->beacon_interval = bss_conf->beacon_int; | |
3055 | } | |
3056 | ||
141b38b6 | 3057 | mutex_unlock(&sc->mutex); |
8feceb67 | 3058 | } |
f078f209 | 3059 | |
8feceb67 VT |
3060 | static u64 ath9k_get_tsf(struct ieee80211_hw *hw) |
3061 | { | |
3062 | u64 tsf; | |
bce048d7 JM |
3063 | struct ath_wiphy *aphy = hw->priv; |
3064 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 3065 | |
141b38b6 S |
3066 | mutex_lock(&sc->mutex); |
3067 | tsf = ath9k_hw_gettsf64(sc->sc_ah); | |
3068 | mutex_unlock(&sc->mutex); | |
f078f209 | 3069 | |
8feceb67 VT |
3070 | return tsf; |
3071 | } | |
f078f209 | 3072 | |
3b5d665b AF |
3073 | static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
3074 | { | |
bce048d7 JM |
3075 | struct ath_wiphy *aphy = hw->priv; |
3076 | struct ath_softc *sc = aphy->sc; | |
3b5d665b | 3077 | |
141b38b6 S |
3078 | mutex_lock(&sc->mutex); |
3079 | ath9k_hw_settsf64(sc->sc_ah, tsf); | |
3080 | mutex_unlock(&sc->mutex); | |
3b5d665b AF |
3081 | } |
3082 | ||
8feceb67 VT |
3083 | static void ath9k_reset_tsf(struct ieee80211_hw *hw) |
3084 | { | |
bce048d7 JM |
3085 | struct ath_wiphy *aphy = hw->priv; |
3086 | struct ath_softc *sc = aphy->sc; | |
c83be688 | 3087 | |
141b38b6 | 3088 | mutex_lock(&sc->mutex); |
21526d57 LR |
3089 | |
3090 | ath9k_ps_wakeup(sc); | |
141b38b6 | 3091 | ath9k_hw_reset_tsf(sc->sc_ah); |
21526d57 LR |
3092 | ath9k_ps_restore(sc); |
3093 | ||
141b38b6 | 3094 | mutex_unlock(&sc->mutex); |
8feceb67 | 3095 | } |
f078f209 | 3096 | |
8feceb67 | 3097 | static int ath9k_ampdu_action(struct ieee80211_hw *hw, |
141b38b6 S |
3098 | enum ieee80211_ampdu_mlme_action action, |
3099 | struct ieee80211_sta *sta, | |
3100 | u16 tid, u16 *ssn) | |
8feceb67 | 3101 | { |
bce048d7 JM |
3102 | struct ath_wiphy *aphy = hw->priv; |
3103 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 3104 | int ret = 0; |
f078f209 | 3105 | |
8feceb67 VT |
3106 | switch (action) { |
3107 | case IEEE80211_AMPDU_RX_START: | |
dca3edb8 S |
3108 | if (!(sc->sc_flags & SC_OP_RXAGGR)) |
3109 | ret = -ENOTSUPP; | |
8feceb67 VT |
3110 | break; |
3111 | case IEEE80211_AMPDU_RX_STOP: | |
8feceb67 VT |
3112 | break; |
3113 | case IEEE80211_AMPDU_TX_START: | |
f83da965 S |
3114 | ath_tx_aggr_start(sc, sta, tid, ssn); |
3115 | ieee80211_start_tx_ba_cb_irqsafe(hw, sta->addr, tid); | |
8feceb67 VT |
3116 | break; |
3117 | case IEEE80211_AMPDU_TX_STOP: | |
f83da965 | 3118 | ath_tx_aggr_stop(sc, sta, tid); |
17741cdc | 3119 | ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
8feceb67 | 3120 | break; |
b1720231 | 3121 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
8469cdef S |
3122 | ath_tx_aggr_resume(sc, sta, tid); |
3123 | break; | |
8feceb67 | 3124 | default: |
c46917bb LR |
3125 | ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, |
3126 | "Unknown AMPDU action\n"); | |
8feceb67 VT |
3127 | } |
3128 | ||
3129 | return ret; | |
f078f209 LR |
3130 | } |
3131 | ||
0c98de65 S |
3132 | static void ath9k_sw_scan_start(struct ieee80211_hw *hw) |
3133 | { | |
bce048d7 JM |
3134 | struct ath_wiphy *aphy = hw->priv; |
3135 | struct ath_softc *sc = aphy->sc; | |
0c98de65 | 3136 | |
3d832611 | 3137 | mutex_lock(&sc->mutex); |
8089cc47 JM |
3138 | if (ath9k_wiphy_scanning(sc)) { |
3139 | printk(KERN_DEBUG "ath9k: Two wiphys trying to scan at the " | |
3140 | "same time\n"); | |
3141 | /* | |
3142 | * Do not allow the concurrent scanning state for now. This | |
3143 | * could be improved with scanning control moved into ath9k. | |
3144 | */ | |
3d832611 | 3145 | mutex_unlock(&sc->mutex); |
8089cc47 JM |
3146 | return; |
3147 | } | |
3148 | ||
3149 | aphy->state = ATH_WIPHY_SCAN; | |
3150 | ath9k_wiphy_pause_all_forced(sc, aphy); | |
3151 | ||
e5f0921a | 3152 | spin_lock_bh(&sc->ani_lock); |
0c98de65 | 3153 | sc->sc_flags |= SC_OP_SCANNING; |
e5f0921a | 3154 | spin_unlock_bh(&sc->ani_lock); |
3d832611 | 3155 | mutex_unlock(&sc->mutex); |
0c98de65 S |
3156 | } |
3157 | ||
3158 | static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) | |
3159 | { | |
bce048d7 JM |
3160 | struct ath_wiphy *aphy = hw->priv; |
3161 | struct ath_softc *sc = aphy->sc; | |
0c98de65 | 3162 | |
3d832611 | 3163 | mutex_lock(&sc->mutex); |
e5f0921a | 3164 | spin_lock_bh(&sc->ani_lock); |
8089cc47 | 3165 | aphy->state = ATH_WIPHY_ACTIVE; |
0c98de65 | 3166 | sc->sc_flags &= ~SC_OP_SCANNING; |
9c07a777 | 3167 | sc->sc_flags |= SC_OP_FULL_RESET; |
e5f0921a | 3168 | spin_unlock_bh(&sc->ani_lock); |
d0bec342 | 3169 | ath_beacon_config(sc, NULL); |
3d832611 | 3170 | mutex_unlock(&sc->mutex); |
0c98de65 S |
3171 | } |
3172 | ||
6baff7f9 | 3173 | struct ieee80211_ops ath9k_ops = { |
8feceb67 VT |
3174 | .tx = ath9k_tx, |
3175 | .start = ath9k_start, | |
3176 | .stop = ath9k_stop, | |
3177 | .add_interface = ath9k_add_interface, | |
3178 | .remove_interface = ath9k_remove_interface, | |
3179 | .config = ath9k_config, | |
8feceb67 | 3180 | .configure_filter = ath9k_configure_filter, |
8feceb67 VT |
3181 | .sta_notify = ath9k_sta_notify, |
3182 | .conf_tx = ath9k_conf_tx, | |
8feceb67 | 3183 | .bss_info_changed = ath9k_bss_info_changed, |
8feceb67 | 3184 | .set_key = ath9k_set_key, |
8feceb67 | 3185 | .get_tsf = ath9k_get_tsf, |
3b5d665b | 3186 | .set_tsf = ath9k_set_tsf, |
8feceb67 | 3187 | .reset_tsf = ath9k_reset_tsf, |
4233df6b | 3188 | .ampdu_action = ath9k_ampdu_action, |
0c98de65 S |
3189 | .sw_scan_start = ath9k_sw_scan_start, |
3190 | .sw_scan_complete = ath9k_sw_scan_complete, | |
3b319aae | 3191 | .rfkill_poll = ath9k_rfkill_poll_state, |
8feceb67 VT |
3192 | }; |
3193 | ||
392dff83 BP |
3194 | static struct { |
3195 | u32 version; | |
3196 | const char * name; | |
3197 | } ath_mac_bb_names[] = { | |
3198 | { AR_SREV_VERSION_5416_PCI, "5416" }, | |
3199 | { AR_SREV_VERSION_5416_PCIE, "5418" }, | |
3200 | { AR_SREV_VERSION_9100, "9100" }, | |
3201 | { AR_SREV_VERSION_9160, "9160" }, | |
3202 | { AR_SREV_VERSION_9280, "9280" }, | |
ac88b6ec VN |
3203 | { AR_SREV_VERSION_9285, "9285" }, |
3204 | { AR_SREV_VERSION_9287, "9287" } | |
392dff83 BP |
3205 | }; |
3206 | ||
3207 | static struct { | |
3208 | u16 version; | |
3209 | const char * name; | |
3210 | } ath_rf_names[] = { | |
3211 | { 0, "5133" }, | |
3212 | { AR_RAD5133_SREV_MAJOR, "5133" }, | |
3213 | { AR_RAD5122_SREV_MAJOR, "5122" }, | |
3214 | { AR_RAD2133_SREV_MAJOR, "2133" }, | |
3215 | { AR_RAD2122_SREV_MAJOR, "2122" } | |
3216 | }; | |
3217 | ||
3218 | /* | |
3219 | * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown. | |
3220 | */ | |
6baff7f9 | 3221 | const char * |
392dff83 BP |
3222 | ath_mac_bb_name(u32 mac_bb_version) |
3223 | { | |
3224 | int i; | |
3225 | ||
3226 | for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) { | |
3227 | if (ath_mac_bb_names[i].version == mac_bb_version) { | |
3228 | return ath_mac_bb_names[i].name; | |
3229 | } | |
3230 | } | |
3231 | ||
3232 | return "????"; | |
3233 | } | |
3234 | ||
3235 | /* | |
3236 | * Return the RF name. "????" is returned if the RF is unknown. | |
3237 | */ | |
6baff7f9 | 3238 | const char * |
392dff83 BP |
3239 | ath_rf_name(u16 rf_version) |
3240 | { | |
3241 | int i; | |
3242 | ||
3243 | for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) { | |
3244 | if (ath_rf_names[i].version == rf_version) { | |
3245 | return ath_rf_names[i].name; | |
3246 | } | |
3247 | } | |
3248 | ||
3249 | return "????"; | |
3250 | } | |
3251 | ||
6baff7f9 | 3252 | static int __init ath9k_init(void) |
f078f209 | 3253 | { |
ca8a8560 VT |
3254 | int error; |
3255 | ||
ca8a8560 VT |
3256 | /* Register rate control algorithm */ |
3257 | error = ath_rate_control_register(); | |
3258 | if (error != 0) { | |
3259 | printk(KERN_ERR | |
b51bb3cd LR |
3260 | "ath9k: Unable to register rate control " |
3261 | "algorithm: %d\n", | |
ca8a8560 | 3262 | error); |
6baff7f9 | 3263 | goto err_out; |
ca8a8560 VT |
3264 | } |
3265 | ||
19d8bc22 GJ |
3266 | error = ath9k_debug_create_root(); |
3267 | if (error) { | |
3268 | printk(KERN_ERR | |
3269 | "ath9k: Unable to create debugfs root: %d\n", | |
3270 | error); | |
3271 | goto err_rate_unregister; | |
3272 | } | |
3273 | ||
6baff7f9 GJ |
3274 | error = ath_pci_init(); |
3275 | if (error < 0) { | |
f078f209 | 3276 | printk(KERN_ERR |
b51bb3cd | 3277 | "ath9k: No PCI devices found, driver not installed.\n"); |
6baff7f9 | 3278 | error = -ENODEV; |
19d8bc22 | 3279 | goto err_remove_root; |
f078f209 LR |
3280 | } |
3281 | ||
09329d37 GJ |
3282 | error = ath_ahb_init(); |
3283 | if (error < 0) { | |
3284 | error = -ENODEV; | |
3285 | goto err_pci_exit; | |
3286 | } | |
3287 | ||
f078f209 | 3288 | return 0; |
6baff7f9 | 3289 | |
09329d37 GJ |
3290 | err_pci_exit: |
3291 | ath_pci_exit(); | |
3292 | ||
19d8bc22 GJ |
3293 | err_remove_root: |
3294 | ath9k_debug_remove_root(); | |
6baff7f9 GJ |
3295 | err_rate_unregister: |
3296 | ath_rate_control_unregister(); | |
3297 | err_out: | |
3298 | return error; | |
f078f209 | 3299 | } |
6baff7f9 | 3300 | module_init(ath9k_init); |
f078f209 | 3301 | |
6baff7f9 | 3302 | static void __exit ath9k_exit(void) |
f078f209 | 3303 | { |
09329d37 | 3304 | ath_ahb_exit(); |
6baff7f9 | 3305 | ath_pci_exit(); |
19d8bc22 | 3306 | ath9k_debug_remove_root(); |
ca8a8560 | 3307 | ath_rate_control_unregister(); |
04bd4638 | 3308 | printk(KERN_INFO "%s: Driver unloaded\n", dev_info); |
f078f209 | 3309 | } |
6baff7f9 | 3310 | module_exit(ath9k_exit); |