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" |
f078f209 | 19 | |
f078f209 LR |
20 | static char *dev_info = "ath9k"; |
21 | ||
22 | MODULE_AUTHOR("Atheros Communications"); | |
23 | MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards."); | |
24 | MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards"); | |
25 | MODULE_LICENSE("Dual BSD/GPL"); | |
26 | ||
b3bd89ce JM |
27 | static int modparam_nohwcrypt; |
28 | module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); | |
29 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption"); | |
30 | ||
5f8e077c LR |
31 | /* We use the hw_value as an index into our private channel structure */ |
32 | ||
33 | #define CHAN2G(_freq, _idx) { \ | |
34 | .center_freq = (_freq), \ | |
35 | .hw_value = (_idx), \ | |
eeddfd9d | 36 | .max_power = 20, \ |
5f8e077c LR |
37 | } |
38 | ||
39 | #define CHAN5G(_freq, _idx) { \ | |
40 | .band = IEEE80211_BAND_5GHZ, \ | |
41 | .center_freq = (_freq), \ | |
42 | .hw_value = (_idx), \ | |
eeddfd9d | 43 | .max_power = 20, \ |
5f8e077c LR |
44 | } |
45 | ||
46 | /* Some 2 GHz radios are actually tunable on 2312-2732 | |
47 | * on 5 MHz steps, we support the channels which we know | |
48 | * we have calibration data for all cards though to make | |
49 | * this static */ | |
50 | static struct ieee80211_channel ath9k_2ghz_chantable[] = { | |
51 | CHAN2G(2412, 0), /* Channel 1 */ | |
52 | CHAN2G(2417, 1), /* Channel 2 */ | |
53 | CHAN2G(2422, 2), /* Channel 3 */ | |
54 | CHAN2G(2427, 3), /* Channel 4 */ | |
55 | CHAN2G(2432, 4), /* Channel 5 */ | |
56 | CHAN2G(2437, 5), /* Channel 6 */ | |
57 | CHAN2G(2442, 6), /* Channel 7 */ | |
58 | CHAN2G(2447, 7), /* Channel 8 */ | |
59 | CHAN2G(2452, 8), /* Channel 9 */ | |
60 | CHAN2G(2457, 9), /* Channel 10 */ | |
61 | CHAN2G(2462, 10), /* Channel 11 */ | |
62 | CHAN2G(2467, 11), /* Channel 12 */ | |
63 | CHAN2G(2472, 12), /* Channel 13 */ | |
64 | CHAN2G(2484, 13), /* Channel 14 */ | |
65 | }; | |
66 | ||
67 | /* Some 5 GHz radios are actually tunable on XXXX-YYYY | |
68 | * on 5 MHz steps, we support the channels which we know | |
69 | * we have calibration data for all cards though to make | |
70 | * this static */ | |
71 | static struct ieee80211_channel ath9k_5ghz_chantable[] = { | |
72 | /* _We_ call this UNII 1 */ | |
73 | CHAN5G(5180, 14), /* Channel 36 */ | |
74 | CHAN5G(5200, 15), /* Channel 40 */ | |
75 | CHAN5G(5220, 16), /* Channel 44 */ | |
76 | CHAN5G(5240, 17), /* Channel 48 */ | |
77 | /* _We_ call this UNII 2 */ | |
78 | CHAN5G(5260, 18), /* Channel 52 */ | |
79 | CHAN5G(5280, 19), /* Channel 56 */ | |
80 | CHAN5G(5300, 20), /* Channel 60 */ | |
81 | CHAN5G(5320, 21), /* Channel 64 */ | |
82 | /* _We_ call this "Middle band" */ | |
83 | CHAN5G(5500, 22), /* Channel 100 */ | |
84 | CHAN5G(5520, 23), /* Channel 104 */ | |
85 | CHAN5G(5540, 24), /* Channel 108 */ | |
86 | CHAN5G(5560, 25), /* Channel 112 */ | |
87 | CHAN5G(5580, 26), /* Channel 116 */ | |
88 | CHAN5G(5600, 27), /* Channel 120 */ | |
89 | CHAN5G(5620, 28), /* Channel 124 */ | |
90 | CHAN5G(5640, 29), /* Channel 128 */ | |
91 | CHAN5G(5660, 30), /* Channel 132 */ | |
92 | CHAN5G(5680, 31), /* Channel 136 */ | |
93 | CHAN5G(5700, 32), /* Channel 140 */ | |
94 | /* _We_ call this UNII 3 */ | |
95 | CHAN5G(5745, 33), /* Channel 149 */ | |
96 | CHAN5G(5765, 34), /* Channel 153 */ | |
97 | CHAN5G(5785, 35), /* Channel 157 */ | |
98 | CHAN5G(5805, 36), /* Channel 161 */ | |
99 | CHAN5G(5825, 37), /* Channel 165 */ | |
100 | }; | |
101 | ||
ce111bad LR |
102 | static void ath_cache_conf_rate(struct ath_softc *sc, |
103 | struct ieee80211_conf *conf) | |
ff37e337 | 104 | { |
030bb495 LR |
105 | switch (conf->channel->band) { |
106 | case IEEE80211_BAND_2GHZ: | |
107 | if (conf_is_ht20(conf)) | |
108 | sc->cur_rate_table = | |
109 | sc->hw_rate_table[ATH9K_MODE_11NG_HT20]; | |
110 | else if (conf_is_ht40_minus(conf)) | |
111 | sc->cur_rate_table = | |
112 | sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS]; | |
113 | else if (conf_is_ht40_plus(conf)) | |
114 | sc->cur_rate_table = | |
115 | sc->hw_rate_table[ATH9K_MODE_11NG_HT40PLUS]; | |
96742256 | 116 | else |
030bb495 LR |
117 | sc->cur_rate_table = |
118 | sc->hw_rate_table[ATH9K_MODE_11G]; | |
030bb495 LR |
119 | break; |
120 | case IEEE80211_BAND_5GHZ: | |
121 | if (conf_is_ht20(conf)) | |
122 | sc->cur_rate_table = | |
123 | sc->hw_rate_table[ATH9K_MODE_11NA_HT20]; | |
124 | else if (conf_is_ht40_minus(conf)) | |
125 | sc->cur_rate_table = | |
126 | sc->hw_rate_table[ATH9K_MODE_11NA_HT40MINUS]; | |
127 | else if (conf_is_ht40_plus(conf)) | |
128 | sc->cur_rate_table = | |
129 | sc->hw_rate_table[ATH9K_MODE_11NA_HT40PLUS]; | |
130 | else | |
96742256 LR |
131 | sc->cur_rate_table = |
132 | sc->hw_rate_table[ATH9K_MODE_11A]; | |
030bb495 LR |
133 | break; |
134 | default: | |
ce111bad | 135 | BUG_ON(1); |
030bb495 LR |
136 | break; |
137 | } | |
ff37e337 S |
138 | } |
139 | ||
140 | static void ath_update_txpow(struct ath_softc *sc) | |
141 | { | |
cbe61d8a | 142 | struct ath_hw *ah = sc->sc_ah; |
ff37e337 S |
143 | u32 txpow; |
144 | ||
17d7904d S |
145 | if (sc->curtxpow != sc->config.txpowlimit) { |
146 | ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit); | |
ff37e337 S |
147 | /* read back in case value is clamped */ |
148 | ath9k_hw_getcapability(ah, ATH9K_CAP_TXPOW, 1, &txpow); | |
17d7904d | 149 | sc->curtxpow = txpow; |
ff37e337 S |
150 | } |
151 | } | |
152 | ||
153 | static u8 parse_mpdudensity(u8 mpdudensity) | |
154 | { | |
155 | /* | |
156 | * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": | |
157 | * 0 for no restriction | |
158 | * 1 for 1/4 us | |
159 | * 2 for 1/2 us | |
160 | * 3 for 1 us | |
161 | * 4 for 2 us | |
162 | * 5 for 4 us | |
163 | * 6 for 8 us | |
164 | * 7 for 16 us | |
165 | */ | |
166 | switch (mpdudensity) { | |
167 | case 0: | |
168 | return 0; | |
169 | case 1: | |
170 | case 2: | |
171 | case 3: | |
172 | /* Our lower layer calculations limit our precision to | |
173 | 1 microsecond */ | |
174 | return 1; | |
175 | case 4: | |
176 | return 2; | |
177 | case 5: | |
178 | return 4; | |
179 | case 6: | |
180 | return 8; | |
181 | case 7: | |
182 | return 16; | |
183 | default: | |
184 | return 0; | |
185 | } | |
186 | } | |
187 | ||
188 | static void ath_setup_rates(struct ath_softc *sc, enum ieee80211_band band) | |
189 | { | |
4f0fc7c3 | 190 | const struct ath_rate_table *rate_table = NULL; |
ff37e337 S |
191 | struct ieee80211_supported_band *sband; |
192 | struct ieee80211_rate *rate; | |
193 | int i, maxrates; | |
194 | ||
195 | switch (band) { | |
196 | case IEEE80211_BAND_2GHZ: | |
197 | rate_table = sc->hw_rate_table[ATH9K_MODE_11G]; | |
198 | break; | |
199 | case IEEE80211_BAND_5GHZ: | |
200 | rate_table = sc->hw_rate_table[ATH9K_MODE_11A]; | |
201 | break; | |
202 | default: | |
203 | break; | |
204 | } | |
205 | ||
206 | if (rate_table == NULL) | |
207 | return; | |
208 | ||
209 | sband = &sc->sbands[band]; | |
210 | rate = sc->rates[band]; | |
211 | ||
212 | if (rate_table->rate_cnt > ATH_RATE_MAX) | |
213 | maxrates = ATH_RATE_MAX; | |
214 | else | |
215 | maxrates = rate_table->rate_cnt; | |
216 | ||
217 | for (i = 0; i < maxrates; i++) { | |
218 | rate[i].bitrate = rate_table->info[i].ratekbps / 100; | |
219 | rate[i].hw_value = rate_table->info[i].ratecode; | |
f46730d1 S |
220 | if (rate_table->info[i].short_preamble) { |
221 | rate[i].hw_value_short = rate_table->info[i].ratecode | | |
222 | rate_table->info[i].short_preamble; | |
223 | rate[i].flags = IEEE80211_RATE_SHORT_PREAMBLE; | |
224 | } | |
ff37e337 | 225 | sband->n_bitrates++; |
f46730d1 | 226 | |
04bd4638 S |
227 | DPRINTF(sc, ATH_DBG_CONFIG, "Rate: %2dMbps, ratecode: %2d\n", |
228 | rate[i].bitrate / 10, rate[i].hw_value); | |
ff37e337 S |
229 | } |
230 | } | |
231 | ||
82880a7c VT |
232 | static struct ath9k_channel *ath_get_curchannel(struct ath_softc *sc, |
233 | struct ieee80211_hw *hw) | |
234 | { | |
235 | struct ieee80211_channel *curchan = hw->conf.channel; | |
236 | struct ath9k_channel *channel; | |
237 | u8 chan_idx; | |
238 | ||
239 | chan_idx = curchan->hw_value; | |
240 | channel = &sc->sc_ah->channels[chan_idx]; | |
241 | ath9k_update_ichannel(sc, hw, channel); | |
242 | return channel; | |
243 | } | |
244 | ||
ff37e337 S |
245 | /* |
246 | * Set/change channels. If the channel is really being changed, it's done | |
247 | * by reseting the chip. To accomplish this we must first cleanup any pending | |
248 | * DMA, then restart stuff. | |
249 | */ | |
0e2dedf9 JM |
250 | int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, |
251 | struct ath9k_channel *hchan) | |
ff37e337 | 252 | { |
cbe61d8a | 253 | struct ath_hw *ah = sc->sc_ah; |
ff37e337 | 254 | bool fastcc = true, stopped; |
ae8d2858 LR |
255 | struct ieee80211_channel *channel = hw->conf.channel; |
256 | int r; | |
ff37e337 S |
257 | |
258 | if (sc->sc_flags & SC_OP_INVALID) | |
259 | return -EIO; | |
260 | ||
3cbb5dd7 VN |
261 | ath9k_ps_wakeup(sc); |
262 | ||
c0d7c7af LR |
263 | /* |
264 | * This is only performed if the channel settings have | |
265 | * actually changed. | |
266 | * | |
267 | * To switch channels clear any pending DMA operations; | |
268 | * wait long enough for the RX fifo to drain, reset the | |
269 | * hardware at the new frequency, and then re-enable | |
270 | * the relevant bits of the h/w. | |
271 | */ | |
272 | ath9k_hw_set_interrupts(ah, 0); | |
043a0405 | 273 | ath_drain_all_txq(sc, false); |
c0d7c7af | 274 | stopped = ath_stoprecv(sc); |
ff37e337 | 275 | |
c0d7c7af LR |
276 | /* XXX: do not flush receive queue here. We don't want |
277 | * to flush data frames already in queue because of | |
278 | * changing channel. */ | |
ff37e337 | 279 | |
c0d7c7af LR |
280 | if (!stopped || (sc->sc_flags & SC_OP_FULL_RESET)) |
281 | fastcc = false; | |
282 | ||
283 | DPRINTF(sc, ATH_DBG_CONFIG, | |
284 | "(%u MHz) -> (%u MHz), chanwidth: %d\n", | |
2660b81a | 285 | sc->sc_ah->curchan->channel, |
c0d7c7af | 286 | channel->center_freq, sc->tx_chan_width); |
ff37e337 | 287 | |
c0d7c7af LR |
288 | spin_lock_bh(&sc->sc_resetlock); |
289 | ||
290 | r = ath9k_hw_reset(ah, hchan, fastcc); | |
291 | if (r) { | |
292 | DPRINTF(sc, ATH_DBG_FATAL, | |
293 | "Unable to reset channel (%u Mhz) " | |
6b45784f | 294 | "reset status %d\n", |
c0d7c7af LR |
295 | channel->center_freq, r); |
296 | spin_unlock_bh(&sc->sc_resetlock); | |
3989279c | 297 | goto ps_restore; |
ff37e337 | 298 | } |
c0d7c7af LR |
299 | spin_unlock_bh(&sc->sc_resetlock); |
300 | ||
c0d7c7af LR |
301 | sc->sc_flags &= ~SC_OP_FULL_RESET; |
302 | ||
303 | if (ath_startrecv(sc) != 0) { | |
304 | DPRINTF(sc, ATH_DBG_FATAL, | |
305 | "Unable to restart recv logic\n"); | |
3989279c GJ |
306 | r = -EIO; |
307 | goto ps_restore; | |
c0d7c7af LR |
308 | } |
309 | ||
310 | ath_cache_conf_rate(sc, &hw->conf); | |
311 | ath_update_txpow(sc); | |
17d7904d | 312 | ath9k_hw_set_interrupts(ah, sc->imask); |
3989279c GJ |
313 | |
314 | ps_restore: | |
3cbb5dd7 | 315 | ath9k_ps_restore(sc); |
3989279c | 316 | return r; |
ff37e337 S |
317 | } |
318 | ||
319 | /* | |
320 | * This routine performs the periodic noise floor calibration function | |
321 | * that is used to adjust and optimize the chip performance. This | |
322 | * takes environmental changes (location, temperature) into account. | |
323 | * When the task is complete, it reschedules itself depending on the | |
324 | * appropriate interval that was calculated. | |
325 | */ | |
326 | static void ath_ani_calibrate(unsigned long data) | |
327 | { | |
20977d3e S |
328 | struct ath_softc *sc = (struct ath_softc *)data; |
329 | struct ath_hw *ah = sc->sc_ah; | |
ff37e337 S |
330 | bool longcal = false; |
331 | bool shortcal = false; | |
332 | bool aniflag = false; | |
333 | unsigned int timestamp = jiffies_to_msecs(jiffies); | |
20977d3e | 334 | u32 cal_interval, short_cal_interval; |
ff37e337 | 335 | |
20977d3e S |
336 | short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? |
337 | ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; | |
ff37e337 S |
338 | |
339 | /* | |
340 | * don't calibrate when we're scanning. | |
341 | * we are most likely not on our home channel. | |
342 | */ | |
e5f0921a | 343 | spin_lock(&sc->ani_lock); |
0c98de65 | 344 | if (sc->sc_flags & SC_OP_SCANNING) |
20977d3e | 345 | goto set_timer; |
ff37e337 | 346 | |
1ffc1c61 JM |
347 | /* Only calibrate if awake */ |
348 | if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) | |
349 | goto set_timer; | |
350 | ||
351 | ath9k_ps_wakeup(sc); | |
352 | ||
ff37e337 | 353 | /* Long calibration runs independently of short calibration. */ |
17d7904d | 354 | if ((timestamp - sc->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) { |
ff37e337 | 355 | longcal = true; |
04bd4638 | 356 | DPRINTF(sc, ATH_DBG_ANI, "longcal @%lu\n", jiffies); |
17d7904d | 357 | sc->ani.longcal_timer = timestamp; |
ff37e337 S |
358 | } |
359 | ||
17d7904d S |
360 | /* Short calibration applies only while caldone is false */ |
361 | if (!sc->ani.caldone) { | |
20977d3e | 362 | if ((timestamp - sc->ani.shortcal_timer) >= short_cal_interval) { |
ff37e337 | 363 | shortcal = true; |
04bd4638 | 364 | DPRINTF(sc, ATH_DBG_ANI, "shortcal @%lu\n", jiffies); |
17d7904d S |
365 | sc->ani.shortcal_timer = timestamp; |
366 | sc->ani.resetcal_timer = timestamp; | |
ff37e337 S |
367 | } |
368 | } else { | |
17d7904d | 369 | if ((timestamp - sc->ani.resetcal_timer) >= |
ff37e337 | 370 | ATH_RESTART_CALINTERVAL) { |
17d7904d S |
371 | sc->ani.caldone = ath9k_hw_reset_calvalid(ah); |
372 | if (sc->ani.caldone) | |
373 | sc->ani.resetcal_timer = timestamp; | |
ff37e337 S |
374 | } |
375 | } | |
376 | ||
377 | /* Verify whether we must check ANI */ | |
20977d3e | 378 | if ((timestamp - sc->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) { |
ff37e337 | 379 | aniflag = true; |
17d7904d | 380 | sc->ani.checkani_timer = timestamp; |
ff37e337 S |
381 | } |
382 | ||
383 | /* Skip all processing if there's nothing to do. */ | |
384 | if (longcal || shortcal || aniflag) { | |
385 | /* Call ANI routine if necessary */ | |
386 | if (aniflag) | |
20977d3e | 387 | ath9k_hw_ani_monitor(ah, &sc->nodestats, ah->curchan); |
ff37e337 S |
388 | |
389 | /* Perform calibration if necessary */ | |
390 | if (longcal || shortcal) { | |
379f0440 S |
391 | sc->ani.caldone = ath9k_hw_calibrate(ah, ah->curchan, |
392 | sc->rx_chainmask, longcal); | |
393 | ||
394 | if (longcal) | |
395 | sc->ani.noise_floor = ath9k_hw_getchan_noise(ah, | |
396 | ah->curchan); | |
397 | ||
398 | DPRINTF(sc, ATH_DBG_ANI," calibrate chan %u/%x nf: %d\n", | |
399 | ah->curchan->channel, ah->curchan->channelFlags, | |
400 | sc->ani.noise_floor); | |
ff37e337 S |
401 | } |
402 | } | |
403 | ||
1ffc1c61 JM |
404 | ath9k_ps_restore(sc); |
405 | ||
20977d3e | 406 | set_timer: |
e5f0921a | 407 | spin_unlock(&sc->ani_lock); |
ff37e337 S |
408 | /* |
409 | * Set timer interval based on previous results. | |
410 | * The interval must be the shortest necessary to satisfy ANI, | |
411 | * short calibration and long calibration. | |
412 | */ | |
aac9207e | 413 | cal_interval = ATH_LONG_CALINTERVAL; |
2660b81a | 414 | if (sc->sc_ah->config.enable_ani) |
aac9207e | 415 | cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL); |
17d7904d | 416 | if (!sc->ani.caldone) |
20977d3e | 417 | cal_interval = min(cal_interval, (u32)short_cal_interval); |
ff37e337 | 418 | |
17d7904d | 419 | mod_timer(&sc->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); |
ff37e337 S |
420 | } |
421 | ||
415f738e S |
422 | static void ath_start_ani(struct ath_softc *sc) |
423 | { | |
424 | unsigned long timestamp = jiffies_to_msecs(jiffies); | |
425 | ||
426 | sc->ani.longcal_timer = timestamp; | |
427 | sc->ani.shortcal_timer = timestamp; | |
428 | sc->ani.checkani_timer = timestamp; | |
429 | ||
430 | mod_timer(&sc->ani.timer, | |
431 | jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); | |
432 | } | |
433 | ||
ff37e337 S |
434 | /* |
435 | * Update tx/rx chainmask. For legacy association, | |
436 | * hard code chainmask to 1x1, for 11n association, use | |
c97c92d9 VT |
437 | * the chainmask configuration, for bt coexistence, use |
438 | * the chainmask configuration even in legacy mode. | |
ff37e337 | 439 | */ |
0e2dedf9 | 440 | void ath_update_chainmask(struct ath_softc *sc, int is_ht) |
ff37e337 | 441 | { |
c97c92d9 | 442 | if (is_ht || |
2660b81a S |
443 | (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX)) { |
444 | sc->tx_chainmask = sc->sc_ah->caps.tx_chainmask; | |
445 | sc->rx_chainmask = sc->sc_ah->caps.rx_chainmask; | |
ff37e337 | 446 | } else { |
17d7904d S |
447 | sc->tx_chainmask = 1; |
448 | sc->rx_chainmask = 1; | |
ff37e337 S |
449 | } |
450 | ||
04bd4638 | 451 | DPRINTF(sc, ATH_DBG_CONFIG, "tx chmask: %d, rx chmask: %d\n", |
17d7904d | 452 | sc->tx_chainmask, sc->rx_chainmask); |
ff37e337 S |
453 | } |
454 | ||
455 | static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) | |
456 | { | |
457 | struct ath_node *an; | |
458 | ||
459 | an = (struct ath_node *)sta->drv_priv; | |
460 | ||
87792efc | 461 | if (sc->sc_flags & SC_OP_TXAGGR) { |
ff37e337 | 462 | ath_tx_node_init(sc, an); |
9e98ac65 | 463 | an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + |
87792efc S |
464 | sta->ht_cap.ampdu_factor); |
465 | an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density); | |
a59b5a5e | 466 | an->last_rssi = ATH_RSSI_DUMMY_MARKER; |
87792efc | 467 | } |
ff37e337 S |
468 | } |
469 | ||
470 | static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) | |
471 | { | |
472 | struct ath_node *an = (struct ath_node *)sta->drv_priv; | |
473 | ||
474 | if (sc->sc_flags & SC_OP_TXAGGR) | |
475 | ath_tx_node_cleanup(sc, an); | |
476 | } | |
477 | ||
478 | static void ath9k_tasklet(unsigned long data) | |
479 | { | |
480 | struct ath_softc *sc = (struct ath_softc *)data; | |
17d7904d | 481 | u32 status = sc->intrstatus; |
ff37e337 | 482 | |
153e080d VT |
483 | ath9k_ps_wakeup(sc); |
484 | ||
ff37e337 | 485 | if (status & ATH9K_INT_FATAL) { |
ff37e337 | 486 | ath_reset(sc, false); |
153e080d | 487 | ath9k_ps_restore(sc); |
ff37e337 | 488 | return; |
063d8be3 | 489 | } |
ff37e337 | 490 | |
063d8be3 S |
491 | if (status & (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN)) { |
492 | spin_lock_bh(&sc->rx.rxflushlock); | |
493 | ath_rx_tasklet(sc, 0); | |
494 | spin_unlock_bh(&sc->rx.rxflushlock); | |
ff37e337 S |
495 | } |
496 | ||
063d8be3 S |
497 | if (status & ATH9K_INT_TX) |
498 | ath_tx_tasklet(sc); | |
499 | ||
96148326 | 500 | if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) { |
54ce846e JM |
501 | /* |
502 | * TSF sync does not look correct; remain awake to sync with | |
503 | * the next Beacon. | |
504 | */ | |
505 | DPRINTF(sc, ATH_DBG_PS, "TSFOOR - Sync with next Beacon\n"); | |
ccdfeab6 | 506 | sc->sc_flags |= SC_OP_WAIT_FOR_BEACON | SC_OP_BEACON_SYNC; |
54ce846e JM |
507 | } |
508 | ||
ff37e337 | 509 | /* re-enable hardware interrupt */ |
17d7904d | 510 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
153e080d | 511 | ath9k_ps_restore(sc); |
ff37e337 S |
512 | } |
513 | ||
6baff7f9 | 514 | irqreturn_t ath_isr(int irq, void *dev) |
ff37e337 | 515 | { |
063d8be3 S |
516 | #define SCHED_INTR ( \ |
517 | ATH9K_INT_FATAL | \ | |
518 | ATH9K_INT_RXORN | \ | |
519 | ATH9K_INT_RXEOL | \ | |
520 | ATH9K_INT_RX | \ | |
521 | ATH9K_INT_TX | \ | |
522 | ATH9K_INT_BMISS | \ | |
523 | ATH9K_INT_CST | \ | |
524 | ATH9K_INT_TSFOOR) | |
525 | ||
ff37e337 | 526 | struct ath_softc *sc = dev; |
cbe61d8a | 527 | struct ath_hw *ah = sc->sc_ah; |
ff37e337 S |
528 | enum ath9k_int status; |
529 | bool sched = false; | |
530 | ||
063d8be3 S |
531 | /* |
532 | * The hardware is not ready/present, don't | |
533 | * touch anything. Note this can happen early | |
534 | * on if the IRQ is shared. | |
535 | */ | |
536 | if (sc->sc_flags & SC_OP_INVALID) | |
537 | return IRQ_NONE; | |
ff37e337 | 538 | |
063d8be3 S |
539 | |
540 | /* shared irq, not for us */ | |
541 | ||
153e080d | 542 | if (!ath9k_hw_intrpend(ah)) |
063d8be3 | 543 | return IRQ_NONE; |
063d8be3 S |
544 | |
545 | /* | |
546 | * Figure out the reason(s) for the interrupt. Note | |
547 | * that the hal returns a pseudo-ISR that may include | |
548 | * bits we haven't explicitly enabled so we mask the | |
549 | * value to insure we only process bits we requested. | |
550 | */ | |
551 | ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ | |
552 | status &= sc->imask; /* discard unasked-for bits */ | |
ff37e337 | 553 | |
063d8be3 S |
554 | /* |
555 | * If there are no status bits set, then this interrupt was not | |
556 | * for me (should have been caught above). | |
557 | */ | |
153e080d | 558 | if (!status) |
063d8be3 | 559 | return IRQ_NONE; |
ff37e337 | 560 | |
063d8be3 S |
561 | /* Cache the status */ |
562 | sc->intrstatus = status; | |
563 | ||
564 | if (status & SCHED_INTR) | |
565 | sched = true; | |
566 | ||
567 | /* | |
568 | * If a FATAL or RXORN interrupt is received, we have to reset the | |
569 | * chip immediately. | |
570 | */ | |
571 | if (status & (ATH9K_INT_FATAL | ATH9K_INT_RXORN)) | |
572 | goto chip_reset; | |
573 | ||
574 | if (status & ATH9K_INT_SWBA) | |
575 | tasklet_schedule(&sc->bcon_tasklet); | |
576 | ||
577 | if (status & ATH9K_INT_TXURN) | |
578 | ath9k_hw_updatetxtriglevel(ah, true); | |
579 | ||
580 | if (status & ATH9K_INT_MIB) { | |
ff37e337 | 581 | /* |
063d8be3 S |
582 | * Disable interrupts until we service the MIB |
583 | * interrupt; otherwise it will continue to | |
584 | * fire. | |
ff37e337 | 585 | */ |
063d8be3 S |
586 | ath9k_hw_set_interrupts(ah, 0); |
587 | /* | |
588 | * Let the hal handle the event. We assume | |
589 | * it will clear whatever condition caused | |
590 | * the interrupt. | |
591 | */ | |
592 | ath9k_hw_procmibevent(ah, &sc->nodestats); | |
593 | ath9k_hw_set_interrupts(ah, sc->imask); | |
594 | } | |
ff37e337 | 595 | |
153e080d VT |
596 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
597 | if (status & ATH9K_INT_TIM_TIMER) { | |
063d8be3 S |
598 | /* Clear RxAbort bit so that we can |
599 | * receive frames */ | |
600 | ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); | |
153e080d | 601 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
063d8be3 | 602 | sc->sc_flags |= SC_OP_WAIT_FOR_BEACON; |
ff37e337 | 603 | } |
063d8be3 S |
604 | |
605 | chip_reset: | |
ff37e337 | 606 | |
817e11de S |
607 | ath_debug_stat_interrupt(sc, status); |
608 | ||
ff37e337 S |
609 | if (sched) { |
610 | /* turn off every interrupt except SWBA */ | |
17d7904d | 611 | ath9k_hw_set_interrupts(ah, (sc->imask & ATH9K_INT_SWBA)); |
ff37e337 S |
612 | tasklet_schedule(&sc->intr_tq); |
613 | } | |
614 | ||
615 | return IRQ_HANDLED; | |
063d8be3 S |
616 | |
617 | #undef SCHED_INTR | |
ff37e337 S |
618 | } |
619 | ||
f078f209 | 620 | static u32 ath_get_extchanmode(struct ath_softc *sc, |
99405f93 | 621 | struct ieee80211_channel *chan, |
094d05dc | 622 | enum nl80211_channel_type channel_type) |
f078f209 LR |
623 | { |
624 | u32 chanmode = 0; | |
f078f209 LR |
625 | |
626 | switch (chan->band) { | |
627 | case IEEE80211_BAND_2GHZ: | |
094d05dc S |
628 | switch(channel_type) { |
629 | case NL80211_CHAN_NO_HT: | |
630 | case NL80211_CHAN_HT20: | |
f078f209 | 631 | chanmode = CHANNEL_G_HT20; |
094d05dc S |
632 | break; |
633 | case NL80211_CHAN_HT40PLUS: | |
f078f209 | 634 | chanmode = CHANNEL_G_HT40PLUS; |
094d05dc S |
635 | break; |
636 | case NL80211_CHAN_HT40MINUS: | |
f078f209 | 637 | chanmode = CHANNEL_G_HT40MINUS; |
094d05dc S |
638 | break; |
639 | } | |
f078f209 LR |
640 | break; |
641 | case IEEE80211_BAND_5GHZ: | |
094d05dc S |
642 | switch(channel_type) { |
643 | case NL80211_CHAN_NO_HT: | |
644 | case NL80211_CHAN_HT20: | |
f078f209 | 645 | chanmode = CHANNEL_A_HT20; |
094d05dc S |
646 | break; |
647 | case NL80211_CHAN_HT40PLUS: | |
f078f209 | 648 | chanmode = CHANNEL_A_HT40PLUS; |
094d05dc S |
649 | break; |
650 | case NL80211_CHAN_HT40MINUS: | |
f078f209 | 651 | chanmode = CHANNEL_A_HT40MINUS; |
094d05dc S |
652 | break; |
653 | } | |
f078f209 LR |
654 | break; |
655 | default: | |
656 | break; | |
657 | } | |
658 | ||
659 | return chanmode; | |
660 | } | |
661 | ||
6ace2891 | 662 | static int ath_setkey_tkip(struct ath_softc *sc, u16 keyix, const u8 *key, |
3f53dd64 JM |
663 | struct ath9k_keyval *hk, const u8 *addr, |
664 | bool authenticator) | |
f078f209 | 665 | { |
6ace2891 JM |
666 | const u8 *key_rxmic; |
667 | const u8 *key_txmic; | |
f078f209 | 668 | |
6ace2891 JM |
669 | key_txmic = key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY; |
670 | key_rxmic = key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY; | |
f078f209 LR |
671 | |
672 | if (addr == NULL) { | |
d216aaa6 JM |
673 | /* |
674 | * Group key installation - only two key cache entries are used | |
675 | * regardless of splitmic capability since group key is only | |
676 | * used either for TX or RX. | |
677 | */ | |
3f53dd64 JM |
678 | if (authenticator) { |
679 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); | |
680 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_mic)); | |
681 | } else { | |
682 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); | |
683 | memcpy(hk->kv_txmic, key_rxmic, sizeof(hk->kv_mic)); | |
684 | } | |
d216aaa6 | 685 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr); |
f078f209 | 686 | } |
17d7904d | 687 | if (!sc->splitmic) { |
d216aaa6 | 688 | /* TX and RX keys share the same key cache entry. */ |
f078f209 LR |
689 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); |
690 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic)); | |
d216aaa6 | 691 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr); |
f078f209 | 692 | } |
d216aaa6 JM |
693 | |
694 | /* Separate key cache entries for TX and RX */ | |
695 | ||
696 | /* TX key goes at first index, RX key at +32. */ | |
f078f209 | 697 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); |
d216aaa6 JM |
698 | if (!ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, NULL)) { |
699 | /* TX MIC entry failed. No need to proceed further */ | |
d8baa939 | 700 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 701 | "Setting TX MIC Key Failed\n"); |
f078f209 LR |
702 | return 0; |
703 | } | |
704 | ||
705 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); | |
706 | /* XXX delete tx key on failure? */ | |
d216aaa6 | 707 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix + 32, hk, addr); |
6ace2891 JM |
708 | } |
709 | ||
710 | static int ath_reserve_key_cache_slot_tkip(struct ath_softc *sc) | |
711 | { | |
712 | int i; | |
713 | ||
17d7904d S |
714 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { |
715 | if (test_bit(i, sc->keymap) || | |
716 | test_bit(i + 64, sc->keymap)) | |
6ace2891 | 717 | continue; /* At least one part of TKIP key allocated */ |
17d7904d S |
718 | if (sc->splitmic && |
719 | (test_bit(i + 32, sc->keymap) || | |
720 | test_bit(i + 64 + 32, sc->keymap))) | |
6ace2891 JM |
721 | continue; /* At least one part of TKIP key allocated */ |
722 | ||
723 | /* Found a free slot for a TKIP key */ | |
724 | return i; | |
725 | } | |
726 | return -1; | |
727 | } | |
728 | ||
729 | static int ath_reserve_key_cache_slot(struct ath_softc *sc) | |
730 | { | |
731 | int i; | |
732 | ||
733 | /* First, try to find slots that would not be available for TKIP. */ | |
17d7904d S |
734 | if (sc->splitmic) { |
735 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 4; i++) { | |
736 | if (!test_bit(i, sc->keymap) && | |
737 | (test_bit(i + 32, sc->keymap) || | |
738 | test_bit(i + 64, sc->keymap) || | |
739 | test_bit(i + 64 + 32, sc->keymap))) | |
6ace2891 | 740 | return i; |
17d7904d S |
741 | if (!test_bit(i + 32, sc->keymap) && |
742 | (test_bit(i, sc->keymap) || | |
743 | test_bit(i + 64, sc->keymap) || | |
744 | test_bit(i + 64 + 32, sc->keymap))) | |
6ace2891 | 745 | return i + 32; |
17d7904d S |
746 | if (!test_bit(i + 64, sc->keymap) && |
747 | (test_bit(i , sc->keymap) || | |
748 | test_bit(i + 32, sc->keymap) || | |
749 | test_bit(i + 64 + 32, sc->keymap))) | |
ea612132 | 750 | return i + 64; |
17d7904d S |
751 | if (!test_bit(i + 64 + 32, sc->keymap) && |
752 | (test_bit(i, sc->keymap) || | |
753 | test_bit(i + 32, sc->keymap) || | |
754 | test_bit(i + 64, sc->keymap))) | |
ea612132 | 755 | return i + 64 + 32; |
6ace2891 JM |
756 | } |
757 | } else { | |
17d7904d S |
758 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { |
759 | if (!test_bit(i, sc->keymap) && | |
760 | test_bit(i + 64, sc->keymap)) | |
6ace2891 | 761 | return i; |
17d7904d S |
762 | if (test_bit(i, sc->keymap) && |
763 | !test_bit(i + 64, sc->keymap)) | |
6ace2891 JM |
764 | return i + 64; |
765 | } | |
766 | } | |
767 | ||
768 | /* No partially used TKIP slots, pick any available slot */ | |
17d7904d | 769 | for (i = IEEE80211_WEP_NKID; i < sc->keymax; i++) { |
be2864cf JM |
770 | /* Do not allow slots that could be needed for TKIP group keys |
771 | * to be used. This limitation could be removed if we know that | |
772 | * TKIP will not be used. */ | |
773 | if (i >= 64 && i < 64 + IEEE80211_WEP_NKID) | |
774 | continue; | |
17d7904d | 775 | if (sc->splitmic) { |
be2864cf JM |
776 | if (i >= 32 && i < 32 + IEEE80211_WEP_NKID) |
777 | continue; | |
778 | if (i >= 64 + 32 && i < 64 + 32 + IEEE80211_WEP_NKID) | |
779 | continue; | |
780 | } | |
781 | ||
17d7904d | 782 | if (!test_bit(i, sc->keymap)) |
6ace2891 JM |
783 | return i; /* Found a free slot for a key */ |
784 | } | |
785 | ||
786 | /* No free slot found */ | |
787 | return -1; | |
f078f209 LR |
788 | } |
789 | ||
790 | static int ath_key_config(struct ath_softc *sc, | |
3f53dd64 | 791 | struct ieee80211_vif *vif, |
dc822b5d | 792 | struct ieee80211_sta *sta, |
f078f209 LR |
793 | struct ieee80211_key_conf *key) |
794 | { | |
f078f209 LR |
795 | struct ath9k_keyval hk; |
796 | const u8 *mac = NULL; | |
797 | int ret = 0; | |
6ace2891 | 798 | int idx; |
f078f209 LR |
799 | |
800 | memset(&hk, 0, sizeof(hk)); | |
801 | ||
802 | switch (key->alg) { | |
803 | case ALG_WEP: | |
804 | hk.kv_type = ATH9K_CIPHER_WEP; | |
805 | break; | |
806 | case ALG_TKIP: | |
807 | hk.kv_type = ATH9K_CIPHER_TKIP; | |
808 | break; | |
809 | case ALG_CCMP: | |
810 | hk.kv_type = ATH9K_CIPHER_AES_CCM; | |
811 | break; | |
812 | default: | |
ca470b29 | 813 | return -EOPNOTSUPP; |
f078f209 LR |
814 | } |
815 | ||
6ace2891 | 816 | hk.kv_len = key->keylen; |
f078f209 LR |
817 | memcpy(hk.kv_val, key->key, key->keylen); |
818 | ||
6ace2891 JM |
819 | if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { |
820 | /* For now, use the default keys for broadcast keys. This may | |
821 | * need to change with virtual interfaces. */ | |
822 | idx = key->keyidx; | |
823 | } else if (key->keyidx) { | |
dc822b5d JB |
824 | if (WARN_ON(!sta)) |
825 | return -EOPNOTSUPP; | |
826 | mac = sta->addr; | |
827 | ||
6ace2891 JM |
828 | if (vif->type != NL80211_IFTYPE_AP) { |
829 | /* Only keyidx 0 should be used with unicast key, but | |
830 | * allow this for client mode for now. */ | |
831 | idx = key->keyidx; | |
832 | } else | |
833 | return -EIO; | |
f078f209 | 834 | } else { |
dc822b5d JB |
835 | if (WARN_ON(!sta)) |
836 | return -EOPNOTSUPP; | |
837 | mac = sta->addr; | |
838 | ||
6ace2891 JM |
839 | if (key->alg == ALG_TKIP) |
840 | idx = ath_reserve_key_cache_slot_tkip(sc); | |
841 | else | |
842 | idx = ath_reserve_key_cache_slot(sc); | |
843 | if (idx < 0) | |
ca470b29 | 844 | return -ENOSPC; /* no free key cache entries */ |
f078f209 LR |
845 | } |
846 | ||
847 | if (key->alg == ALG_TKIP) | |
3f53dd64 JM |
848 | ret = ath_setkey_tkip(sc, idx, key->key, &hk, mac, |
849 | vif->type == NL80211_IFTYPE_AP); | |
f078f209 | 850 | else |
d216aaa6 | 851 | ret = ath9k_hw_set_keycache_entry(sc->sc_ah, idx, &hk, mac); |
f078f209 LR |
852 | |
853 | if (!ret) | |
854 | return -EIO; | |
855 | ||
17d7904d | 856 | set_bit(idx, sc->keymap); |
6ace2891 | 857 | if (key->alg == ALG_TKIP) { |
17d7904d S |
858 | set_bit(idx + 64, sc->keymap); |
859 | if (sc->splitmic) { | |
860 | set_bit(idx + 32, sc->keymap); | |
861 | set_bit(idx + 64 + 32, sc->keymap); | |
6ace2891 JM |
862 | } |
863 | } | |
864 | ||
865 | return idx; | |
f078f209 LR |
866 | } |
867 | ||
868 | static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key) | |
869 | { | |
6ace2891 JM |
870 | ath9k_hw_keyreset(sc->sc_ah, key->hw_key_idx); |
871 | if (key->hw_key_idx < IEEE80211_WEP_NKID) | |
872 | return; | |
873 | ||
17d7904d | 874 | clear_bit(key->hw_key_idx, sc->keymap); |
6ace2891 JM |
875 | if (key->alg != ALG_TKIP) |
876 | return; | |
f078f209 | 877 | |
17d7904d S |
878 | clear_bit(key->hw_key_idx + 64, sc->keymap); |
879 | if (sc->splitmic) { | |
880 | clear_bit(key->hw_key_idx + 32, sc->keymap); | |
881 | clear_bit(key->hw_key_idx + 64 + 32, sc->keymap); | |
6ace2891 | 882 | } |
f078f209 LR |
883 | } |
884 | ||
eb2599ca S |
885 | static void setup_ht_cap(struct ath_softc *sc, |
886 | struct ieee80211_sta_ht_cap *ht_info) | |
f078f209 | 887 | { |
140add21 | 888 | u8 tx_streams, rx_streams; |
f078f209 | 889 | |
d9fe60de JB |
890 | ht_info->ht_supported = true; |
891 | ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
892 | IEEE80211_HT_CAP_SM_PS | | |
893 | IEEE80211_HT_CAP_SGI_40 | | |
894 | IEEE80211_HT_CAP_DSSSCCK40; | |
f078f209 | 895 | |
9e98ac65 S |
896 | ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; |
897 | ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8; | |
eb2599ca | 898 | |
d9fe60de JB |
899 | /* set up supported mcs set */ |
900 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); | |
140add21 SB |
901 | tx_streams = !(sc->tx_chainmask & (sc->tx_chainmask - 1)) ? 1 : 2; |
902 | rx_streams = !(sc->rx_chainmask & (sc->rx_chainmask - 1)) ? 1 : 2; | |
903 | ||
904 | if (tx_streams != rx_streams) { | |
905 | DPRINTF(sc, ATH_DBG_CONFIG, "TX streams %d, RX streams: %d\n", | |
906 | tx_streams, rx_streams); | |
907 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; | |
908 | ht_info->mcs.tx_params |= ((tx_streams - 1) << | |
909 | IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); | |
910 | } | |
eb2599ca | 911 | |
140add21 SB |
912 | ht_info->mcs.rx_mask[0] = 0xff; |
913 | if (rx_streams >= 2) | |
eb2599ca | 914 | ht_info->mcs.rx_mask[1] = 0xff; |
eb2599ca | 915 | |
140add21 | 916 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED; |
f078f209 LR |
917 | } |
918 | ||
8feceb67 | 919 | static void ath9k_bss_assoc_info(struct ath_softc *sc, |
5640b08e | 920 | struct ieee80211_vif *vif, |
8feceb67 | 921 | struct ieee80211_bss_conf *bss_conf) |
f078f209 | 922 | { |
f078f209 | 923 | |
8feceb67 | 924 | if (bss_conf->assoc) { |
094d05dc | 925 | DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n", |
17d7904d | 926 | bss_conf->aid, sc->curbssid); |
f078f209 | 927 | |
8feceb67 | 928 | /* New association, store aid */ |
2664f201 SB |
929 | sc->curaid = bss_conf->aid; |
930 | ath9k_hw_write_associd(sc); | |
931 | ||
932 | /* | |
933 | * Request a re-configuration of Beacon related timers | |
934 | * on the receipt of the first Beacon frame (i.e., | |
935 | * after time sync with the AP). | |
936 | */ | |
937 | sc->sc_flags |= SC_OP_BEACON_SYNC; | |
f078f209 | 938 | |
8feceb67 | 939 | /* Configure the beacon */ |
2c3db3d5 | 940 | ath_beacon_config(sc, vif); |
f078f209 | 941 | |
8feceb67 | 942 | /* Reset rssi stats */ |
17d7904d S |
943 | sc->nodestats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER; |
944 | sc->nodestats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER; | |
945 | sc->nodestats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER; | |
946 | sc->nodestats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER; | |
f078f209 | 947 | |
415f738e | 948 | ath_start_ani(sc); |
8feceb67 | 949 | } else { |
1ffb0610 | 950 | DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info DISASSOC\n"); |
17d7904d | 951 | sc->curaid = 0; |
f38faa31 SB |
952 | /* Stop ANI */ |
953 | del_timer_sync(&sc->ani.timer); | |
f078f209 | 954 | } |
8feceb67 | 955 | } |
f078f209 | 956 | |
8feceb67 VT |
957 | /********************************/ |
958 | /* LED functions */ | |
959 | /********************************/ | |
f078f209 | 960 | |
f2bffa7e VT |
961 | static void ath_led_blink_work(struct work_struct *work) |
962 | { | |
963 | struct ath_softc *sc = container_of(work, struct ath_softc, | |
964 | ath_led_blink_work.work); | |
965 | ||
966 | if (!(sc->sc_flags & SC_OP_LED_ASSOCIATED)) | |
967 | return; | |
85067c06 VT |
968 | |
969 | if ((sc->led_on_duration == ATH_LED_ON_DURATION_IDLE) || | |
970 | (sc->led_off_duration == ATH_LED_OFF_DURATION_IDLE)) | |
971 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0); | |
972 | else | |
973 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, | |
974 | (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0); | |
f2bffa7e VT |
975 | |
976 | queue_delayed_work(sc->hw->workqueue, &sc->ath_led_blink_work, | |
977 | (sc->sc_flags & SC_OP_LED_ON) ? | |
978 | msecs_to_jiffies(sc->led_off_duration) : | |
979 | msecs_to_jiffies(sc->led_on_duration)); | |
980 | ||
85067c06 VT |
981 | sc->led_on_duration = sc->led_on_cnt ? |
982 | max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25) : | |
983 | ATH_LED_ON_DURATION_IDLE; | |
984 | sc->led_off_duration = sc->led_off_cnt ? | |
985 | max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10) : | |
986 | ATH_LED_OFF_DURATION_IDLE; | |
f2bffa7e VT |
987 | sc->led_on_cnt = sc->led_off_cnt = 0; |
988 | if (sc->sc_flags & SC_OP_LED_ON) | |
989 | sc->sc_flags &= ~SC_OP_LED_ON; | |
990 | else | |
991 | sc->sc_flags |= SC_OP_LED_ON; | |
992 | } | |
993 | ||
8feceb67 VT |
994 | static void ath_led_brightness(struct led_classdev *led_cdev, |
995 | enum led_brightness brightness) | |
996 | { | |
997 | struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev); | |
998 | struct ath_softc *sc = led->sc; | |
f078f209 | 999 | |
8feceb67 VT |
1000 | switch (brightness) { |
1001 | case LED_OFF: | |
1002 | if (led->led_type == ATH_LED_ASSOC || | |
f2bffa7e VT |
1003 | led->led_type == ATH_LED_RADIO) { |
1004 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, | |
1005 | (led->led_type == ATH_LED_RADIO)); | |
8feceb67 | 1006 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; |
f2bffa7e VT |
1007 | if (led->led_type == ATH_LED_RADIO) |
1008 | sc->sc_flags &= ~SC_OP_LED_ON; | |
1009 | } else { | |
1010 | sc->led_off_cnt++; | |
1011 | } | |
8feceb67 VT |
1012 | break; |
1013 | case LED_FULL: | |
f2bffa7e | 1014 | if (led->led_type == ATH_LED_ASSOC) { |
8feceb67 | 1015 | sc->sc_flags |= SC_OP_LED_ASSOCIATED; |
f2bffa7e VT |
1016 | queue_delayed_work(sc->hw->workqueue, |
1017 | &sc->ath_led_blink_work, 0); | |
1018 | } else if (led->led_type == ATH_LED_RADIO) { | |
1019 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0); | |
1020 | sc->sc_flags |= SC_OP_LED_ON; | |
1021 | } else { | |
1022 | sc->led_on_cnt++; | |
1023 | } | |
8feceb67 VT |
1024 | break; |
1025 | default: | |
1026 | break; | |
f078f209 | 1027 | } |
8feceb67 | 1028 | } |
f078f209 | 1029 | |
8feceb67 VT |
1030 | static int ath_register_led(struct ath_softc *sc, struct ath_led *led, |
1031 | char *trigger) | |
1032 | { | |
1033 | int ret; | |
f078f209 | 1034 | |
8feceb67 VT |
1035 | led->sc = sc; |
1036 | led->led_cdev.name = led->name; | |
1037 | led->led_cdev.default_trigger = trigger; | |
1038 | led->led_cdev.brightness_set = ath_led_brightness; | |
f078f209 | 1039 | |
8feceb67 VT |
1040 | ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev); |
1041 | if (ret) | |
1042 | DPRINTF(sc, ATH_DBG_FATAL, | |
1043 | "Failed to register led:%s", led->name); | |
1044 | else | |
1045 | led->registered = 1; | |
1046 | return ret; | |
1047 | } | |
f078f209 | 1048 | |
8feceb67 VT |
1049 | static void ath_unregister_led(struct ath_led *led) |
1050 | { | |
1051 | if (led->registered) { | |
1052 | led_classdev_unregister(&led->led_cdev); | |
1053 | led->registered = 0; | |
f078f209 | 1054 | } |
f078f209 LR |
1055 | } |
1056 | ||
8feceb67 | 1057 | static void ath_deinit_leds(struct ath_softc *sc) |
f078f209 | 1058 | { |
8feceb67 VT |
1059 | ath_unregister_led(&sc->assoc_led); |
1060 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; | |
1061 | ath_unregister_led(&sc->tx_led); | |
1062 | ath_unregister_led(&sc->rx_led); | |
1063 | ath_unregister_led(&sc->radio_led); | |
1064 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); | |
1065 | } | |
f078f209 | 1066 | |
8feceb67 VT |
1067 | static void ath_init_leds(struct ath_softc *sc) |
1068 | { | |
1069 | char *trigger; | |
1070 | int ret; | |
f078f209 | 1071 | |
8feceb67 VT |
1072 | /* Configure gpio 1 for output */ |
1073 | ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN, | |
1074 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | |
1075 | /* LED off, active low */ | |
1076 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); | |
7dcfdcd9 | 1077 | |
f2bffa7e VT |
1078 | INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work); |
1079 | ||
8feceb67 VT |
1080 | trigger = ieee80211_get_radio_led_name(sc->hw); |
1081 | snprintf(sc->radio_led.name, sizeof(sc->radio_led.name), | |
0818cb8a | 1082 | "ath9k-%s::radio", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1083 | ret = ath_register_led(sc, &sc->radio_led, trigger); |
1084 | sc->radio_led.led_type = ATH_LED_RADIO; | |
1085 | if (ret) | |
1086 | goto fail; | |
7dcfdcd9 | 1087 | |
8feceb67 VT |
1088 | trigger = ieee80211_get_assoc_led_name(sc->hw); |
1089 | snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name), | |
0818cb8a | 1090 | "ath9k-%s::assoc", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1091 | ret = ath_register_led(sc, &sc->assoc_led, trigger); |
1092 | sc->assoc_led.led_type = ATH_LED_ASSOC; | |
1093 | if (ret) | |
1094 | goto fail; | |
f078f209 | 1095 | |
8feceb67 VT |
1096 | trigger = ieee80211_get_tx_led_name(sc->hw); |
1097 | snprintf(sc->tx_led.name, sizeof(sc->tx_led.name), | |
0818cb8a | 1098 | "ath9k-%s::tx", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1099 | ret = ath_register_led(sc, &sc->tx_led, trigger); |
1100 | sc->tx_led.led_type = ATH_LED_TX; | |
1101 | if (ret) | |
1102 | goto fail; | |
f078f209 | 1103 | |
8feceb67 VT |
1104 | trigger = ieee80211_get_rx_led_name(sc->hw); |
1105 | snprintf(sc->rx_led.name, sizeof(sc->rx_led.name), | |
0818cb8a | 1106 | "ath9k-%s::rx", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1107 | ret = ath_register_led(sc, &sc->rx_led, trigger); |
1108 | sc->rx_led.led_type = ATH_LED_RX; | |
1109 | if (ret) | |
1110 | goto fail; | |
f078f209 | 1111 | |
8feceb67 VT |
1112 | return; |
1113 | ||
1114 | fail: | |
35c95ab9 | 1115 | cancel_delayed_work_sync(&sc->ath_led_blink_work); |
8feceb67 | 1116 | ath_deinit_leds(sc); |
f078f209 LR |
1117 | } |
1118 | ||
7ec3e514 | 1119 | void ath_radio_enable(struct ath_softc *sc) |
500c064d | 1120 | { |
cbe61d8a | 1121 | struct ath_hw *ah = sc->sc_ah; |
ae8d2858 LR |
1122 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
1123 | int r; | |
500c064d | 1124 | |
3cbb5dd7 | 1125 | ath9k_ps_wakeup(sc); |
d2f5b3a6 | 1126 | ath9k_hw_configpcipowersave(ah, 0); |
ae8d2858 | 1127 | |
159cd468 VT |
1128 | if (!ah->curchan) |
1129 | ah->curchan = ath_get_curchannel(sc, sc->hw); | |
1130 | ||
d2f5b3a6 | 1131 | spin_lock_bh(&sc->sc_resetlock); |
2660b81a | 1132 | r = ath9k_hw_reset(ah, ah->curchan, false); |
ae8d2858 | 1133 | if (r) { |
500c064d | 1134 | DPRINTF(sc, ATH_DBG_FATAL, |
ae8d2858 | 1135 | "Unable to reset channel %u (%uMhz) ", |
6b45784f | 1136 | "reset status %d\n", |
ae8d2858 | 1137 | channel->center_freq, r); |
500c064d VT |
1138 | } |
1139 | spin_unlock_bh(&sc->sc_resetlock); | |
1140 | ||
1141 | ath_update_txpow(sc); | |
1142 | if (ath_startrecv(sc) != 0) { | |
1143 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1144 | "Unable to restart recv logic\n"); |
500c064d VT |
1145 | return; |
1146 | } | |
1147 | ||
1148 | if (sc->sc_flags & SC_OP_BEACONS) | |
2c3db3d5 | 1149 | ath_beacon_config(sc, NULL); /* restart beacons */ |
500c064d VT |
1150 | |
1151 | /* Re-Enable interrupts */ | |
17d7904d | 1152 | ath9k_hw_set_interrupts(ah, sc->imask); |
500c064d VT |
1153 | |
1154 | /* Enable LED */ | |
1155 | ath9k_hw_cfg_output(ah, ATH_LED_PIN, | |
1156 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | |
1157 | ath9k_hw_set_gpio(ah, ATH_LED_PIN, 0); | |
1158 | ||
1159 | ieee80211_wake_queues(sc->hw); | |
3cbb5dd7 | 1160 | ath9k_ps_restore(sc); |
500c064d VT |
1161 | } |
1162 | ||
7ec3e514 | 1163 | void ath_radio_disable(struct ath_softc *sc) |
500c064d | 1164 | { |
cbe61d8a | 1165 | struct ath_hw *ah = sc->sc_ah; |
ae8d2858 LR |
1166 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
1167 | int r; | |
500c064d | 1168 | |
3cbb5dd7 | 1169 | ath9k_ps_wakeup(sc); |
500c064d VT |
1170 | ieee80211_stop_queues(sc->hw); |
1171 | ||
1172 | /* Disable LED */ | |
1173 | ath9k_hw_set_gpio(ah, ATH_LED_PIN, 1); | |
1174 | ath9k_hw_cfg_gpio_input(ah, ATH_LED_PIN); | |
1175 | ||
1176 | /* Disable interrupts */ | |
1177 | ath9k_hw_set_interrupts(ah, 0); | |
1178 | ||
043a0405 | 1179 | ath_drain_all_txq(sc, false); /* clear pending tx frames */ |
500c064d VT |
1180 | ath_stoprecv(sc); /* turn off frame recv */ |
1181 | ath_flushrecv(sc); /* flush recv queue */ | |
1182 | ||
159cd468 VT |
1183 | if (!ah->curchan) |
1184 | ah->curchan = ath_get_curchannel(sc, sc->hw); | |
1185 | ||
500c064d | 1186 | spin_lock_bh(&sc->sc_resetlock); |
2660b81a | 1187 | r = ath9k_hw_reset(ah, ah->curchan, false); |
ae8d2858 | 1188 | if (r) { |
500c064d | 1189 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 1190 | "Unable to reset channel %u (%uMhz) " |
6b45784f | 1191 | "reset status %d\n", |
ae8d2858 | 1192 | channel->center_freq, r); |
500c064d VT |
1193 | } |
1194 | spin_unlock_bh(&sc->sc_resetlock); | |
1195 | ||
1196 | ath9k_hw_phy_disable(ah); | |
d2f5b3a6 | 1197 | ath9k_hw_configpcipowersave(ah, 1); |
3cbb5dd7 | 1198 | ath9k_ps_restore(sc); |
38ab422e | 1199 | ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP); |
500c064d VT |
1200 | } |
1201 | ||
5077fd35 GJ |
1202 | /*******************/ |
1203 | /* Rfkill */ | |
1204 | /*******************/ | |
1205 | ||
500c064d VT |
1206 | static bool ath_is_rfkill_set(struct ath_softc *sc) |
1207 | { | |
cbe61d8a | 1208 | struct ath_hw *ah = sc->sc_ah; |
500c064d | 1209 | |
2660b81a S |
1210 | return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == |
1211 | ah->rfkill_polarity; | |
500c064d VT |
1212 | } |
1213 | ||
3b319aae | 1214 | static void ath9k_rfkill_poll_state(struct ieee80211_hw *hw) |
500c064d | 1215 | { |
3b319aae JB |
1216 | struct ath_wiphy *aphy = hw->priv; |
1217 | struct ath_softc *sc = aphy->sc; | |
19d337df | 1218 | bool blocked = !!ath_is_rfkill_set(sc); |
500c064d | 1219 | |
3b319aae JB |
1220 | wiphy_rfkill_set_hw_state(hw->wiphy, blocked); |
1221 | ||
1222 | if (blocked) | |
19d337df JB |
1223 | ath_radio_disable(sc); |
1224 | else | |
1225 | ath_radio_enable(sc); | |
500c064d VT |
1226 | } |
1227 | ||
3b319aae | 1228 | static void ath_start_rfkill_poll(struct ath_softc *sc) |
500c064d | 1229 | { |
3b319aae | 1230 | struct ath_hw *ah = sc->sc_ah; |
9c84b797 | 1231 | |
3b319aae JB |
1232 | if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
1233 | wiphy_rfkill_start_polling(sc->hw->wiphy); | |
9c84b797 | 1234 | } |
500c064d | 1235 | |
6baff7f9 | 1236 | void ath_cleanup(struct ath_softc *sc) |
39c3c2f2 GJ |
1237 | { |
1238 | ath_detach(sc); | |
1239 | free_irq(sc->irq, sc); | |
1240 | ath_bus_cleanup(sc); | |
c52f33d0 | 1241 | kfree(sc->sec_wiphy); |
39c3c2f2 GJ |
1242 | ieee80211_free_hw(sc->hw); |
1243 | } | |
1244 | ||
6baff7f9 | 1245 | void ath_detach(struct ath_softc *sc) |
f078f209 | 1246 | { |
8feceb67 | 1247 | struct ieee80211_hw *hw = sc->hw; |
9c84b797 | 1248 | int i = 0; |
f078f209 | 1249 | |
3cbb5dd7 VN |
1250 | ath9k_ps_wakeup(sc); |
1251 | ||
04bd4638 | 1252 | DPRINTF(sc, ATH_DBG_CONFIG, "Detach ATH hw\n"); |
f078f209 | 1253 | |
35c95ab9 LR |
1254 | ath_deinit_leds(sc); |
1255 | ||
c52f33d0 JM |
1256 | for (i = 0; i < sc->num_sec_wiphy; i++) { |
1257 | struct ath_wiphy *aphy = sc->sec_wiphy[i]; | |
1258 | if (aphy == NULL) | |
1259 | continue; | |
1260 | sc->sec_wiphy[i] = NULL; | |
1261 | ieee80211_unregister_hw(aphy->hw); | |
1262 | ieee80211_free_hw(aphy->hw); | |
1263 | } | |
3fcdfb4b | 1264 | ieee80211_unregister_hw(hw); |
8feceb67 VT |
1265 | ath_rx_cleanup(sc); |
1266 | ath_tx_cleanup(sc); | |
f078f209 | 1267 | |
9c84b797 S |
1268 | tasklet_kill(&sc->intr_tq); |
1269 | tasklet_kill(&sc->bcon_tasklet); | |
f078f209 | 1270 | |
9c84b797 S |
1271 | if (!(sc->sc_flags & SC_OP_INVALID)) |
1272 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); | |
8feceb67 | 1273 | |
9c84b797 S |
1274 | /* cleanup tx queues */ |
1275 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1276 | if (ATH_TXQ_SETUP(sc, i)) | |
b77f483f | 1277 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
9c84b797 S |
1278 | |
1279 | ath9k_hw_detach(sc->sc_ah); | |
826d2680 | 1280 | ath9k_exit_debug(sc); |
f078f209 LR |
1281 | } |
1282 | ||
e3bb249b BC |
1283 | static int ath9k_reg_notifier(struct wiphy *wiphy, |
1284 | struct regulatory_request *request) | |
1285 | { | |
1286 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | |
1287 | struct ath_wiphy *aphy = hw->priv; | |
1288 | struct ath_softc *sc = aphy->sc; | |
1289 | struct ath_regulatory *reg = &sc->sc_ah->regulatory; | |
1290 | ||
1291 | return ath_reg_notifier_apply(wiphy, request, reg); | |
1292 | } | |
1293 | ||
ff37e337 S |
1294 | static int ath_init(u16 devid, struct ath_softc *sc) |
1295 | { | |
cbe61d8a | 1296 | struct ath_hw *ah = NULL; |
ff37e337 S |
1297 | int status; |
1298 | int error = 0, i; | |
1299 | int csz = 0; | |
1300 | ||
1301 | /* XXX: hardware will not be ready until ath_open() being called */ | |
1302 | sc->sc_flags |= SC_OP_INVALID; | |
88b126af | 1303 | |
826d2680 S |
1304 | if (ath9k_init_debug(sc) < 0) |
1305 | printk(KERN_ERR "Unable to create debugfs files\n"); | |
ff37e337 | 1306 | |
c52f33d0 | 1307 | spin_lock_init(&sc->wiphy_lock); |
ff37e337 | 1308 | spin_lock_init(&sc->sc_resetlock); |
6158425b | 1309 | spin_lock_init(&sc->sc_serial_rw); |
e5f0921a | 1310 | spin_lock_init(&sc->ani_lock); |
04717ccd | 1311 | spin_lock_init(&sc->sc_pm_lock); |
aa33de09 | 1312 | mutex_init(&sc->mutex); |
ff37e337 | 1313 | tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc); |
9fc9ab0a | 1314 | tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, |
ff37e337 S |
1315 | (unsigned long)sc); |
1316 | ||
1317 | /* | |
1318 | * Cache line size is used to size and align various | |
1319 | * structures used to communicate with the hardware. | |
1320 | */ | |
88d15707 | 1321 | ath_read_cachesize(sc, &csz); |
ff37e337 | 1322 | /* XXX assert csz is non-zero */ |
17d7904d | 1323 | sc->cachelsz = csz << 2; /* convert to bytes */ |
ff37e337 | 1324 | |
cbe61d8a | 1325 | ah = ath9k_hw_attach(devid, sc, &status); |
ff37e337 S |
1326 | if (ah == NULL) { |
1327 | DPRINTF(sc, ATH_DBG_FATAL, | |
295834fe | 1328 | "Unable to attach hardware; HAL status %d\n", status); |
ff37e337 S |
1329 | error = -ENXIO; |
1330 | goto bad; | |
1331 | } | |
1332 | sc->sc_ah = ah; | |
1333 | ||
1334 | /* Get the hardware key cache size. */ | |
2660b81a | 1335 | sc->keymax = ah->caps.keycache_size; |
17d7904d | 1336 | if (sc->keymax > ATH_KEYMAX) { |
d8baa939 | 1337 | DPRINTF(sc, ATH_DBG_ANY, |
04bd4638 | 1338 | "Warning, using only %u entries in %u key cache\n", |
17d7904d S |
1339 | ATH_KEYMAX, sc->keymax); |
1340 | sc->keymax = ATH_KEYMAX; | |
ff37e337 S |
1341 | } |
1342 | ||
1343 | /* | |
1344 | * Reset the key cache since some parts do not | |
1345 | * reset the contents on initial power up. | |
1346 | */ | |
17d7904d | 1347 | for (i = 0; i < sc->keymax; i++) |
ff37e337 | 1348 | ath9k_hw_keyreset(ah, (u16) i); |
ff37e337 | 1349 | |
85efc86e | 1350 | if (error) |
ff37e337 S |
1351 | goto bad; |
1352 | ||
1353 | /* default to MONITOR mode */ | |
2660b81a | 1354 | sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; |
d97809db | 1355 | |
ff37e337 S |
1356 | /* Setup rate tables */ |
1357 | ||
1358 | ath_rate_attach(sc); | |
1359 | ath_setup_rates(sc, IEEE80211_BAND_2GHZ); | |
1360 | ath_setup_rates(sc, IEEE80211_BAND_5GHZ); | |
1361 | ||
1362 | /* | |
1363 | * Allocate hardware transmit queues: one queue for | |
1364 | * beacon frames and one data queue for each QoS | |
1365 | * priority. Note that the hal handles reseting | |
1366 | * these queues at the needed time. | |
1367 | */ | |
b77f483f S |
1368 | sc->beacon.beaconq = ath_beaconq_setup(ah); |
1369 | if (sc->beacon.beaconq == -1) { | |
ff37e337 | 1370 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 1371 | "Unable to setup a beacon xmit queue\n"); |
ff37e337 S |
1372 | error = -EIO; |
1373 | goto bad2; | |
1374 | } | |
b77f483f S |
1375 | sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0); |
1376 | if (sc->beacon.cabq == NULL) { | |
ff37e337 | 1377 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 1378 | "Unable to setup CAB xmit queue\n"); |
ff37e337 S |
1379 | error = -EIO; |
1380 | goto bad2; | |
1381 | } | |
1382 | ||
17d7904d | 1383 | sc->config.cabqReadytime = ATH_CABQ_READY_TIME; |
ff37e337 S |
1384 | ath_cabq_update(sc); |
1385 | ||
b77f483f S |
1386 | for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++) |
1387 | sc->tx.hwq_map[i] = -1; | |
ff37e337 S |
1388 | |
1389 | /* Setup data queues */ | |
1390 | /* NB: ensure BK queue is the lowest priority h/w queue */ | |
1391 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) { | |
1392 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1393 | "Unable to setup xmit queue for BK traffic\n"); |
ff37e337 S |
1394 | error = -EIO; |
1395 | goto bad2; | |
1396 | } | |
1397 | ||
1398 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BE)) { | |
1399 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1400 | "Unable to setup xmit queue for BE traffic\n"); |
ff37e337 S |
1401 | error = -EIO; |
1402 | goto bad2; | |
1403 | } | |
1404 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VI)) { | |
1405 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1406 | "Unable to setup xmit queue for VI traffic\n"); |
ff37e337 S |
1407 | error = -EIO; |
1408 | goto bad2; | |
1409 | } | |
1410 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VO)) { | |
1411 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1412 | "Unable to setup xmit queue for VO traffic\n"); |
ff37e337 S |
1413 | error = -EIO; |
1414 | goto bad2; | |
1415 | } | |
1416 | ||
1417 | /* Initializes the noise floor to a reasonable default value. | |
1418 | * Later on this will be updated during ANI processing. */ | |
1419 | ||
17d7904d S |
1420 | sc->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR; |
1421 | setup_timer(&sc->ani.timer, ath_ani_calibrate, (unsigned long)sc); | |
ff37e337 S |
1422 | |
1423 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1424 | ATH9K_CIPHER_TKIP, NULL)) { | |
1425 | /* | |
1426 | * Whether we should enable h/w TKIP MIC. | |
1427 | * XXX: if we don't support WME TKIP MIC, then we wouldn't | |
1428 | * report WMM capable, so it's always safe to turn on | |
1429 | * TKIP MIC in this case. | |
1430 | */ | |
1431 | ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC, | |
1432 | 0, 1, NULL); | |
1433 | } | |
1434 | ||
1435 | /* | |
1436 | * Check whether the separate key cache entries | |
1437 | * are required to handle both tx+rx MIC keys. | |
1438 | * With split mic keys the number of stations is limited | |
1439 | * to 27 otherwise 59. | |
1440 | */ | |
1441 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1442 | ATH9K_CIPHER_TKIP, NULL) | |
1443 | && ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1444 | ATH9K_CIPHER_MIC, NULL) | |
1445 | && ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT, | |
1446 | 0, NULL)) | |
17d7904d | 1447 | sc->splitmic = 1; |
ff37e337 S |
1448 | |
1449 | /* turn on mcast key search if possible */ | |
1450 | if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL)) | |
1451 | (void)ath9k_hw_setcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 1, | |
1452 | 1, NULL); | |
1453 | ||
17d7904d | 1454 | sc->config.txpowlimit = ATH_TXPOWER_MAX; |
ff37e337 S |
1455 | |
1456 | /* 11n Capabilities */ | |
2660b81a | 1457 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
ff37e337 S |
1458 | sc->sc_flags |= SC_OP_TXAGGR; |
1459 | sc->sc_flags |= SC_OP_RXAGGR; | |
1460 | } | |
1461 | ||
2660b81a S |
1462 | sc->tx_chainmask = ah->caps.tx_chainmask; |
1463 | sc->rx_chainmask = ah->caps.rx_chainmask; | |
ff37e337 S |
1464 | |
1465 | ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL); | |
b77f483f | 1466 | sc->rx.defant = ath9k_hw_getdefantenna(ah); |
ff37e337 | 1467 | |
8ca21f01 | 1468 | if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) |
ba52da58 | 1469 | memcpy(sc->bssidmask, ath_bcast_mac, ETH_ALEN); |
ff37e337 | 1470 | |
b77f483f | 1471 | sc->beacon.slottime = ATH9K_SLOT_TIME_9; /* default to short slot time */ |
ff37e337 S |
1472 | |
1473 | /* initialize beacon slots */ | |
c52f33d0 | 1474 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
2c3db3d5 | 1475 | sc->beacon.bslot[i] = NULL; |
c52f33d0 JM |
1476 | sc->beacon.bslot_aphy[i] = NULL; |
1477 | } | |
ff37e337 | 1478 | |
ff37e337 S |
1479 | /* setup channels and rates */ |
1480 | ||
5f8e077c | 1481 | sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable; |
ff37e337 S |
1482 | sc->sbands[IEEE80211_BAND_2GHZ].bitrates = |
1483 | sc->rates[IEEE80211_BAND_2GHZ]; | |
1484 | sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ; | |
5f8e077c LR |
1485 | sc->sbands[IEEE80211_BAND_2GHZ].n_channels = |
1486 | ARRAY_SIZE(ath9k_2ghz_chantable); | |
ff37e337 | 1487 | |
2660b81a | 1488 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) { |
5f8e077c | 1489 | sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable; |
ff37e337 S |
1490 | sc->sbands[IEEE80211_BAND_5GHZ].bitrates = |
1491 | sc->rates[IEEE80211_BAND_5GHZ]; | |
1492 | sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; | |
5f8e077c LR |
1493 | sc->sbands[IEEE80211_BAND_5GHZ].n_channels = |
1494 | ARRAY_SIZE(ath9k_5ghz_chantable); | |
ff37e337 S |
1495 | } |
1496 | ||
2660b81a | 1497 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX) |
c97c92d9 VT |
1498 | ath9k_hw_btcoex_enable(sc->sc_ah); |
1499 | ||
ff37e337 S |
1500 | return 0; |
1501 | bad2: | |
1502 | /* cleanup tx queues */ | |
1503 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1504 | if (ATH_TXQ_SETUP(sc, i)) | |
b77f483f | 1505 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
ff37e337 S |
1506 | bad: |
1507 | if (ah) | |
1508 | ath9k_hw_detach(ah); | |
40b130a9 | 1509 | ath9k_exit_debug(sc); |
ff37e337 S |
1510 | |
1511 | return error; | |
1512 | } | |
1513 | ||
c52f33d0 | 1514 | void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) |
f078f209 | 1515 | { |
9c84b797 S |
1516 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
1517 | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | | |
1518 | IEEE80211_HW_SIGNAL_DBM | | |
3cbb5dd7 VN |
1519 | IEEE80211_HW_AMPDU_AGGREGATION | |
1520 | IEEE80211_HW_SUPPORTS_PS | | |
eeee1320 S |
1521 | IEEE80211_HW_PS_NULLFUNC_STACK | |
1522 | IEEE80211_HW_SPECTRUM_MGMT; | |
f078f209 | 1523 | |
b3bd89ce | 1524 | if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt) |
0ced0e17 JM |
1525 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
1526 | ||
9c84b797 S |
1527 | hw->wiphy->interface_modes = |
1528 | BIT(NL80211_IFTYPE_AP) | | |
1529 | BIT(NL80211_IFTYPE_STATION) | | |
9cb5412b PE |
1530 | BIT(NL80211_IFTYPE_ADHOC) | |
1531 | BIT(NL80211_IFTYPE_MESH_POINT); | |
f078f209 | 1532 | |
8feceb67 | 1533 | hw->queues = 4; |
e63835b0 | 1534 | hw->max_rates = 4; |
171387ef | 1535 | hw->channel_change_time = 5000; |
465ca84d | 1536 | hw->max_listen_interval = 10; |
dd190183 LR |
1537 | /* Hardware supports 10 but we use 4 */ |
1538 | hw->max_rate_tries = 4; | |
528f0c6b | 1539 | hw->sta_data_size = sizeof(struct ath_node); |
17d7904d | 1540 | hw->vif_data_size = sizeof(struct ath_vif); |
f078f209 | 1541 | |
8feceb67 | 1542 | hw->rate_control_algorithm = "ath9k_rate_control"; |
f078f209 | 1543 | |
c52f33d0 JM |
1544 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
1545 | &sc->sbands[IEEE80211_BAND_2GHZ]; | |
1546 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) | |
1547 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
1548 | &sc->sbands[IEEE80211_BAND_5GHZ]; | |
1549 | } | |
1550 | ||
1551 | int ath_attach(u16 devid, struct ath_softc *sc) | |
1552 | { | |
1553 | struct ieee80211_hw *hw = sc->hw; | |
c52f33d0 | 1554 | int error = 0, i; |
3a702e49 | 1555 | struct ath_regulatory *reg; |
c52f33d0 JM |
1556 | |
1557 | DPRINTF(sc, ATH_DBG_CONFIG, "Attach ATH hw\n"); | |
1558 | ||
1559 | error = ath_init(devid, sc); | |
1560 | if (error != 0) | |
1561 | return error; | |
1562 | ||
1563 | /* get mac address from hardware and set in mac80211 */ | |
1564 | ||
1565 | SET_IEEE80211_PERM_ADDR(hw, sc->sc_ah->macaddr); | |
1566 | ||
1567 | ath_set_hw_capab(sc, hw); | |
1568 | ||
c26c2e57 LR |
1569 | error = ath_regd_init(&sc->sc_ah->regulatory, sc->hw->wiphy, |
1570 | ath9k_reg_notifier); | |
1571 | if (error) | |
1572 | return error; | |
1573 | ||
1574 | reg = &sc->sc_ah->regulatory; | |
1575 | ||
2660b81a | 1576 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
eb2599ca | 1577 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap); |
2660b81a | 1578 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) |
eb2599ca | 1579 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); |
9c84b797 S |
1580 | } |
1581 | ||
db93e7b5 SB |
1582 | /* initialize tx/rx engine */ |
1583 | error = ath_tx_init(sc, ATH_TXBUF); | |
1584 | if (error != 0) | |
40b130a9 | 1585 | goto error_attach; |
8feceb67 | 1586 | |
db93e7b5 SB |
1587 | error = ath_rx_init(sc, ATH_RXBUF); |
1588 | if (error != 0) | |
40b130a9 | 1589 | goto error_attach; |
8feceb67 | 1590 | |
0e2dedf9 | 1591 | INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work); |
f98c3bd2 JM |
1592 | INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work); |
1593 | sc->wiphy_scheduler_int = msecs_to_jiffies(500); | |
0e2dedf9 | 1594 | |
db93e7b5 | 1595 | error = ieee80211_register_hw(hw); |
8feceb67 | 1596 | |
3a702e49 | 1597 | if (!ath_is_world_regd(reg)) { |
c02cf373 | 1598 | error = regulatory_hint(hw->wiphy, reg->alpha2); |
fe33eb39 LR |
1599 | if (error) |
1600 | goto error_attach; | |
1601 | } | |
5f8e077c | 1602 | |
db93e7b5 SB |
1603 | /* Initialize LED control */ |
1604 | ath_init_leds(sc); | |
8feceb67 | 1605 | |
3b319aae | 1606 | ath_start_rfkill_poll(sc); |
5f8e077c | 1607 | |
8feceb67 | 1608 | return 0; |
40b130a9 VT |
1609 | |
1610 | error_attach: | |
1611 | /* cleanup tx queues */ | |
1612 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1613 | if (ATH_TXQ_SETUP(sc, i)) | |
1614 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); | |
1615 | ||
1616 | ath9k_hw_detach(sc->sc_ah); | |
1617 | ath9k_exit_debug(sc); | |
1618 | ||
8feceb67 | 1619 | return error; |
f078f209 LR |
1620 | } |
1621 | ||
ff37e337 S |
1622 | int ath_reset(struct ath_softc *sc, bool retry_tx) |
1623 | { | |
cbe61d8a | 1624 | struct ath_hw *ah = sc->sc_ah; |
030bb495 | 1625 | struct ieee80211_hw *hw = sc->hw; |
ae8d2858 | 1626 | int r; |
ff37e337 S |
1627 | |
1628 | ath9k_hw_set_interrupts(ah, 0); | |
043a0405 | 1629 | ath_drain_all_txq(sc, retry_tx); |
ff37e337 S |
1630 | ath_stoprecv(sc); |
1631 | ath_flushrecv(sc); | |
1632 | ||
1633 | spin_lock_bh(&sc->sc_resetlock); | |
2660b81a | 1634 | r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); |
ae8d2858 | 1635 | if (r) |
ff37e337 | 1636 | DPRINTF(sc, ATH_DBG_FATAL, |
6b45784f | 1637 | "Unable to reset hardware; reset status %d\n", r); |
ff37e337 S |
1638 | spin_unlock_bh(&sc->sc_resetlock); |
1639 | ||
1640 | if (ath_startrecv(sc) != 0) | |
04bd4638 | 1641 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); |
ff37e337 S |
1642 | |
1643 | /* | |
1644 | * We may be doing a reset in response to a request | |
1645 | * that changes the channel so update any state that | |
1646 | * might change as a result. | |
1647 | */ | |
ce111bad | 1648 | ath_cache_conf_rate(sc, &hw->conf); |
ff37e337 S |
1649 | |
1650 | ath_update_txpow(sc); | |
1651 | ||
1652 | if (sc->sc_flags & SC_OP_BEACONS) | |
2c3db3d5 | 1653 | ath_beacon_config(sc, NULL); /* restart beacons */ |
ff37e337 | 1654 | |
17d7904d | 1655 | ath9k_hw_set_interrupts(ah, sc->imask); |
ff37e337 S |
1656 | |
1657 | if (retry_tx) { | |
1658 | int i; | |
1659 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { | |
1660 | if (ATH_TXQ_SETUP(sc, i)) { | |
b77f483f S |
1661 | spin_lock_bh(&sc->tx.txq[i].axq_lock); |
1662 | ath_txq_schedule(sc, &sc->tx.txq[i]); | |
1663 | spin_unlock_bh(&sc->tx.txq[i].axq_lock); | |
ff37e337 S |
1664 | } |
1665 | } | |
1666 | } | |
1667 | ||
ae8d2858 | 1668 | return r; |
ff37e337 S |
1669 | } |
1670 | ||
1671 | /* | |
1672 | * This function will allocate both the DMA descriptor structure, and the | |
1673 | * buffers it contains. These are used to contain the descriptors used | |
1674 | * by the system. | |
1675 | */ | |
1676 | int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, | |
1677 | struct list_head *head, const char *name, | |
1678 | int nbuf, int ndesc) | |
1679 | { | |
1680 | #define DS2PHYS(_dd, _ds) \ | |
1681 | ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) | |
1682 | #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) | |
1683 | #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) | |
1684 | ||
1685 | struct ath_desc *ds; | |
1686 | struct ath_buf *bf; | |
1687 | int i, bsize, error; | |
1688 | ||
04bd4638 S |
1689 | DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n", |
1690 | name, nbuf, ndesc); | |
ff37e337 | 1691 | |
b03a9db9 | 1692 | INIT_LIST_HEAD(head); |
ff37e337 S |
1693 | /* ath_desc must be a multiple of DWORDs */ |
1694 | if ((sizeof(struct ath_desc) % 4) != 0) { | |
04bd4638 | 1695 | DPRINTF(sc, ATH_DBG_FATAL, "ath_desc not DWORD aligned\n"); |
ff37e337 S |
1696 | ASSERT((sizeof(struct ath_desc) % 4) == 0); |
1697 | error = -ENOMEM; | |
1698 | goto fail; | |
1699 | } | |
1700 | ||
ff37e337 S |
1701 | dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc; |
1702 | ||
1703 | /* | |
1704 | * Need additional DMA memory because we can't use | |
1705 | * descriptors that cross the 4K page boundary. Assume | |
1706 | * one skipped descriptor per 4K page. | |
1707 | */ | |
2660b81a | 1708 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
ff37e337 S |
1709 | u32 ndesc_skipped = |
1710 | ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len); | |
1711 | u32 dma_len; | |
1712 | ||
1713 | while (ndesc_skipped) { | |
1714 | dma_len = ndesc_skipped * sizeof(struct ath_desc); | |
1715 | dd->dd_desc_len += dma_len; | |
1716 | ||
1717 | ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len); | |
1718 | }; | |
1719 | } | |
1720 | ||
1721 | /* allocate descriptors */ | |
7da3c55c | 1722 | dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len, |
f0e6ce13 | 1723 | &dd->dd_desc_paddr, GFP_KERNEL); |
ff37e337 S |
1724 | if (dd->dd_desc == NULL) { |
1725 | error = -ENOMEM; | |
1726 | goto fail; | |
1727 | } | |
1728 | ds = dd->dd_desc; | |
04bd4638 | 1729 | DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n", |
ae459af1 | 1730 | name, ds, (u32) dd->dd_desc_len, |
ff37e337 S |
1731 | ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len); |
1732 | ||
1733 | /* allocate buffers */ | |
1734 | bsize = sizeof(struct ath_buf) * nbuf; | |
f0e6ce13 | 1735 | bf = kzalloc(bsize, GFP_KERNEL); |
ff37e337 S |
1736 | if (bf == NULL) { |
1737 | error = -ENOMEM; | |
1738 | goto fail2; | |
1739 | } | |
ff37e337 S |
1740 | dd->dd_bufptr = bf; |
1741 | ||
ff37e337 S |
1742 | for (i = 0; i < nbuf; i++, bf++, ds += ndesc) { |
1743 | bf->bf_desc = ds; | |
1744 | bf->bf_daddr = DS2PHYS(dd, ds); | |
1745 | ||
2660b81a | 1746 | if (!(sc->sc_ah->caps.hw_caps & |
ff37e337 S |
1747 | ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
1748 | /* | |
1749 | * Skip descriptor addresses which can cause 4KB | |
1750 | * boundary crossing (addr + length) with a 32 dword | |
1751 | * descriptor fetch. | |
1752 | */ | |
1753 | while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) { | |
1754 | ASSERT((caddr_t) bf->bf_desc < | |
1755 | ((caddr_t) dd->dd_desc + | |
1756 | dd->dd_desc_len)); | |
1757 | ||
1758 | ds += ndesc; | |
1759 | bf->bf_desc = ds; | |
1760 | bf->bf_daddr = DS2PHYS(dd, ds); | |
1761 | } | |
1762 | } | |
1763 | list_add_tail(&bf->list, head); | |
1764 | } | |
1765 | return 0; | |
1766 | fail2: | |
7da3c55c GJ |
1767 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
1768 | dd->dd_desc_paddr); | |
ff37e337 S |
1769 | fail: |
1770 | memset(dd, 0, sizeof(*dd)); | |
1771 | return error; | |
1772 | #undef ATH_DESC_4KB_BOUND_CHECK | |
1773 | #undef ATH_DESC_4KB_BOUND_NUM_SKIPPED | |
1774 | #undef DS2PHYS | |
1775 | } | |
1776 | ||
1777 | void ath_descdma_cleanup(struct ath_softc *sc, | |
1778 | struct ath_descdma *dd, | |
1779 | struct list_head *head) | |
1780 | { | |
7da3c55c GJ |
1781 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
1782 | dd->dd_desc_paddr); | |
ff37e337 S |
1783 | |
1784 | INIT_LIST_HEAD(head); | |
1785 | kfree(dd->dd_bufptr); | |
1786 | memset(dd, 0, sizeof(*dd)); | |
1787 | } | |
1788 | ||
1789 | int ath_get_hal_qnum(u16 queue, struct ath_softc *sc) | |
1790 | { | |
1791 | int qnum; | |
1792 | ||
1793 | switch (queue) { | |
1794 | case 0: | |
b77f483f | 1795 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VO]; |
ff37e337 S |
1796 | break; |
1797 | case 1: | |
b77f483f | 1798 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VI]; |
ff37e337 S |
1799 | break; |
1800 | case 2: | |
b77f483f | 1801 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
ff37e337 S |
1802 | break; |
1803 | case 3: | |
b77f483f | 1804 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BK]; |
ff37e337 S |
1805 | break; |
1806 | default: | |
b77f483f | 1807 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
ff37e337 S |
1808 | break; |
1809 | } | |
1810 | ||
1811 | return qnum; | |
1812 | } | |
1813 | ||
1814 | int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc) | |
1815 | { | |
1816 | int qnum; | |
1817 | ||
1818 | switch (queue) { | |
1819 | case ATH9K_WME_AC_VO: | |
1820 | qnum = 0; | |
1821 | break; | |
1822 | case ATH9K_WME_AC_VI: | |
1823 | qnum = 1; | |
1824 | break; | |
1825 | case ATH9K_WME_AC_BE: | |
1826 | qnum = 2; | |
1827 | break; | |
1828 | case ATH9K_WME_AC_BK: | |
1829 | qnum = 3; | |
1830 | break; | |
1831 | default: | |
1832 | qnum = -1; | |
1833 | break; | |
1834 | } | |
1835 | ||
1836 | return qnum; | |
1837 | } | |
1838 | ||
5f8e077c LR |
1839 | /* XXX: Remove me once we don't depend on ath9k_channel for all |
1840 | * this redundant data */ | |
0e2dedf9 JM |
1841 | void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, |
1842 | struct ath9k_channel *ichan) | |
5f8e077c | 1843 | { |
5f8e077c LR |
1844 | struct ieee80211_channel *chan = hw->conf.channel; |
1845 | struct ieee80211_conf *conf = &hw->conf; | |
1846 | ||
1847 | ichan->channel = chan->center_freq; | |
1848 | ichan->chan = chan; | |
1849 | ||
1850 | if (chan->band == IEEE80211_BAND_2GHZ) { | |
1851 | ichan->chanmode = CHANNEL_G; | |
1852 | ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM; | |
1853 | } else { | |
1854 | ichan->chanmode = CHANNEL_A; | |
1855 | ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM; | |
1856 | } | |
1857 | ||
1858 | sc->tx_chan_width = ATH9K_HT_MACMODE_20; | |
1859 | ||
1860 | if (conf_is_ht(conf)) { | |
1861 | if (conf_is_ht40(conf)) | |
1862 | sc->tx_chan_width = ATH9K_HT_MACMODE_2040; | |
1863 | ||
1864 | ichan->chanmode = ath_get_extchanmode(sc, chan, | |
1865 | conf->channel_type); | |
1866 | } | |
1867 | } | |
1868 | ||
ff37e337 S |
1869 | /**********************/ |
1870 | /* mac80211 callbacks */ | |
1871 | /**********************/ | |
1872 | ||
8feceb67 | 1873 | static int ath9k_start(struct ieee80211_hw *hw) |
f078f209 | 1874 | { |
bce048d7 JM |
1875 | struct ath_wiphy *aphy = hw->priv; |
1876 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 1877 | struct ieee80211_channel *curchan = hw->conf.channel; |
ff37e337 | 1878 | struct ath9k_channel *init_channel; |
82880a7c | 1879 | int r; |
f078f209 | 1880 | |
04bd4638 S |
1881 | DPRINTF(sc, ATH_DBG_CONFIG, "Starting driver with " |
1882 | "initial channel: %d MHz\n", curchan->center_freq); | |
f078f209 | 1883 | |
141b38b6 S |
1884 | mutex_lock(&sc->mutex); |
1885 | ||
9580a222 JM |
1886 | if (ath9k_wiphy_started(sc)) { |
1887 | if (sc->chan_idx == curchan->hw_value) { | |
1888 | /* | |
1889 | * Already on the operational channel, the new wiphy | |
1890 | * can be marked active. | |
1891 | */ | |
1892 | aphy->state = ATH_WIPHY_ACTIVE; | |
1893 | ieee80211_wake_queues(hw); | |
1894 | } else { | |
1895 | /* | |
1896 | * Another wiphy is on another channel, start the new | |
1897 | * wiphy in paused state. | |
1898 | */ | |
1899 | aphy->state = ATH_WIPHY_PAUSED; | |
1900 | ieee80211_stop_queues(hw); | |
1901 | } | |
1902 | mutex_unlock(&sc->mutex); | |
1903 | return 0; | |
1904 | } | |
1905 | aphy->state = ATH_WIPHY_ACTIVE; | |
1906 | ||
8feceb67 | 1907 | /* setup initial channel */ |
f078f209 | 1908 | |
82880a7c | 1909 | sc->chan_idx = curchan->hw_value; |
f078f209 | 1910 | |
82880a7c | 1911 | init_channel = ath_get_curchannel(sc, hw); |
ff37e337 S |
1912 | |
1913 | /* Reset SERDES registers */ | |
1914 | ath9k_hw_configpcipowersave(sc->sc_ah, 0); | |
1915 | ||
1916 | /* | |
1917 | * The basic interface to setting the hardware in a good | |
1918 | * state is ``reset''. On return the hardware is known to | |
1919 | * be powered up and with interrupts disabled. This must | |
1920 | * be followed by initialization of the appropriate bits | |
1921 | * and then setup of the interrupt mask. | |
1922 | */ | |
1923 | spin_lock_bh(&sc->sc_resetlock); | |
ae8d2858 LR |
1924 | r = ath9k_hw_reset(sc->sc_ah, init_channel, false); |
1925 | if (r) { | |
ff37e337 | 1926 | DPRINTF(sc, ATH_DBG_FATAL, |
6b45784f | 1927 | "Unable to reset hardware; reset status %d " |
ae8d2858 LR |
1928 | "(freq %u MHz)\n", r, |
1929 | curchan->center_freq); | |
ff37e337 | 1930 | spin_unlock_bh(&sc->sc_resetlock); |
141b38b6 | 1931 | goto mutex_unlock; |
ff37e337 S |
1932 | } |
1933 | spin_unlock_bh(&sc->sc_resetlock); | |
1934 | ||
1935 | /* | |
1936 | * This is needed only to setup initial state | |
1937 | * but it's best done after a reset. | |
1938 | */ | |
1939 | ath_update_txpow(sc); | |
8feceb67 | 1940 | |
ff37e337 S |
1941 | /* |
1942 | * Setup the hardware after reset: | |
1943 | * The receive engine is set going. | |
1944 | * Frame transmit is handled entirely | |
1945 | * in the frame output path; there's nothing to do | |
1946 | * here except setup the interrupt mask. | |
1947 | */ | |
1948 | if (ath_startrecv(sc) != 0) { | |
1ffb0610 | 1949 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); |
141b38b6 S |
1950 | r = -EIO; |
1951 | goto mutex_unlock; | |
f078f209 | 1952 | } |
8feceb67 | 1953 | |
ff37e337 | 1954 | /* Setup our intr mask. */ |
17d7904d | 1955 | sc->imask = ATH9K_INT_RX | ATH9K_INT_TX |
ff37e337 S |
1956 | | ATH9K_INT_RXEOL | ATH9K_INT_RXORN |
1957 | | ATH9K_INT_FATAL | ATH9K_INT_GLOBAL; | |
1958 | ||
2660b81a | 1959 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_GTT) |
17d7904d | 1960 | sc->imask |= ATH9K_INT_GTT; |
ff37e337 | 1961 | |
2660b81a | 1962 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) |
17d7904d | 1963 | sc->imask |= ATH9K_INT_CST; |
ff37e337 | 1964 | |
ce111bad | 1965 | ath_cache_conf_rate(sc, &hw->conf); |
ff37e337 S |
1966 | |
1967 | sc->sc_flags &= ~SC_OP_INVALID; | |
1968 | ||
1969 | /* Disable BMISS interrupt when we're not associated */ | |
17d7904d S |
1970 | sc->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); |
1971 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); | |
ff37e337 | 1972 | |
bce048d7 | 1973 | ieee80211_wake_queues(hw); |
ff37e337 | 1974 | |
164ace38 SB |
1975 | queue_delayed_work(sc->hw->workqueue, &sc->tx_complete_work, 0); |
1976 | ||
141b38b6 S |
1977 | mutex_unlock: |
1978 | mutex_unlock(&sc->mutex); | |
1979 | ||
ae8d2858 | 1980 | return r; |
f078f209 LR |
1981 | } |
1982 | ||
8feceb67 VT |
1983 | static int ath9k_tx(struct ieee80211_hw *hw, |
1984 | struct sk_buff *skb) | |
f078f209 | 1985 | { |
528f0c6b | 1986 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
bce048d7 JM |
1987 | struct ath_wiphy *aphy = hw->priv; |
1988 | struct ath_softc *sc = aphy->sc; | |
528f0c6b | 1989 | struct ath_tx_control txctl; |
8feceb67 | 1990 | int hdrlen, padsize; |
528f0c6b | 1991 | |
8089cc47 | 1992 | if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) { |
ee166a0e JM |
1993 | printk(KERN_DEBUG "ath9k: %s: TX in unexpected wiphy state " |
1994 | "%d\n", wiphy_name(hw->wiphy), aphy->state); | |
1995 | goto exit; | |
1996 | } | |
1997 | ||
96148326 | 1998 | if (sc->ps_enabled) { |
dc8c4585 JM |
1999 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
2000 | /* | |
2001 | * mac80211 does not set PM field for normal data frames, so we | |
2002 | * need to update that based on the current PS mode. | |
2003 | */ | |
2004 | if (ieee80211_is_data(hdr->frame_control) && | |
2005 | !ieee80211_is_nullfunc(hdr->frame_control) && | |
2006 | !ieee80211_has_pm(hdr->frame_control)) { | |
2007 | DPRINTF(sc, ATH_DBG_PS, "Add PM=1 for a TX frame " | |
2008 | "while in PS mode\n"); | |
2009 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); | |
2010 | } | |
2011 | } | |
2012 | ||
9a23f9ca JM |
2013 | if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) { |
2014 | /* | |
2015 | * We are using PS-Poll and mac80211 can request TX while in | |
2016 | * power save mode. Need to wake up hardware for the TX to be | |
2017 | * completed and if needed, also for RX of buffered frames. | |
2018 | */ | |
2019 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
2020 | ath9k_ps_wakeup(sc); | |
2021 | ath9k_hw_setrxabort(sc->sc_ah, 0); | |
2022 | if (ieee80211_is_pspoll(hdr->frame_control)) { | |
2023 | DPRINTF(sc, ATH_DBG_PS, "Sending PS-Poll to pick a " | |
2024 | "buffered frame\n"); | |
2025 | sc->sc_flags |= SC_OP_WAIT_FOR_PSPOLL_DATA; | |
2026 | } else { | |
2027 | DPRINTF(sc, ATH_DBG_PS, "Wake up to complete TX\n"); | |
2028 | sc->sc_flags |= SC_OP_WAIT_FOR_TX_ACK; | |
2029 | } | |
2030 | /* | |
2031 | * The actual restore operation will happen only after | |
2032 | * the sc_flags bit is cleared. We are just dropping | |
2033 | * the ps_usecount here. | |
2034 | */ | |
2035 | ath9k_ps_restore(sc); | |
2036 | } | |
2037 | ||
528f0c6b | 2038 | memset(&txctl, 0, sizeof(struct ath_tx_control)); |
f078f209 | 2039 | |
8feceb67 VT |
2040 | /* |
2041 | * As a temporary workaround, assign seq# here; this will likely need | |
2042 | * to be cleaned up to work better with Beacon transmission and virtual | |
2043 | * BSSes. | |
2044 | */ | |
2045 | if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { | |
2046 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
2047 | if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) | |
b77f483f | 2048 | sc->tx.seq_no += 0x10; |
8feceb67 | 2049 | hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
b77f483f | 2050 | hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no); |
8feceb67 | 2051 | } |
f078f209 | 2052 | |
8feceb67 VT |
2053 | /* Add the padding after the header if this is not already done */ |
2054 | hdrlen = ieee80211_get_hdrlen_from_skb(skb); | |
2055 | if (hdrlen & 3) { | |
2056 | padsize = hdrlen % 4; | |
2057 | if (skb_headroom(skb) < padsize) | |
2058 | return -1; | |
2059 | skb_push(skb, padsize); | |
2060 | memmove(skb->data, skb->data + padsize, hdrlen); | |
2061 | } | |
2062 | ||
528f0c6b S |
2063 | /* Check if a tx queue is available */ |
2064 | ||
2065 | txctl.txq = ath_test_get_txq(sc, skb); | |
2066 | if (!txctl.txq) | |
2067 | goto exit; | |
2068 | ||
04bd4638 | 2069 | DPRINTF(sc, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); |
8feceb67 | 2070 | |
c52f33d0 | 2071 | if (ath_tx_start(hw, skb, &txctl) != 0) { |
04bd4638 | 2072 | DPRINTF(sc, ATH_DBG_XMIT, "TX failed\n"); |
528f0c6b | 2073 | goto exit; |
8feceb67 VT |
2074 | } |
2075 | ||
528f0c6b S |
2076 | return 0; |
2077 | exit: | |
2078 | dev_kfree_skb_any(skb); | |
8feceb67 | 2079 | return 0; |
f078f209 LR |
2080 | } |
2081 | ||
8feceb67 | 2082 | static void ath9k_stop(struct ieee80211_hw *hw) |
f078f209 | 2083 | { |
bce048d7 JM |
2084 | struct ath_wiphy *aphy = hw->priv; |
2085 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2086 | |
9580a222 JM |
2087 | aphy->state = ATH_WIPHY_INACTIVE; |
2088 | ||
c94dbff7 LR |
2089 | cancel_delayed_work_sync(&sc->ath_led_blink_work); |
2090 | cancel_delayed_work_sync(&sc->tx_complete_work); | |
2091 | ||
2092 | if (!sc->num_sec_wiphy) { | |
2093 | cancel_delayed_work_sync(&sc->wiphy_work); | |
2094 | cancel_work_sync(&sc->chan_work); | |
2095 | } | |
2096 | ||
9c84b797 | 2097 | if (sc->sc_flags & SC_OP_INVALID) { |
04bd4638 | 2098 | DPRINTF(sc, ATH_DBG_ANY, "Device not present\n"); |
9c84b797 S |
2099 | return; |
2100 | } | |
8feceb67 | 2101 | |
141b38b6 | 2102 | mutex_lock(&sc->mutex); |
ff37e337 | 2103 | |
9580a222 JM |
2104 | if (ath9k_wiphy_started(sc)) { |
2105 | mutex_unlock(&sc->mutex); | |
2106 | return; /* another wiphy still in use */ | |
2107 | } | |
2108 | ||
ff37e337 S |
2109 | /* make sure h/w will not generate any interrupt |
2110 | * before setting the invalid flag. */ | |
2111 | ath9k_hw_set_interrupts(sc->sc_ah, 0); | |
2112 | ||
2113 | if (!(sc->sc_flags & SC_OP_INVALID)) { | |
043a0405 | 2114 | ath_drain_all_txq(sc, false); |
ff37e337 S |
2115 | ath_stoprecv(sc); |
2116 | ath9k_hw_phy_disable(sc->sc_ah); | |
2117 | } else | |
b77f483f | 2118 | sc->rx.rxlink = NULL; |
ff37e337 | 2119 | |
3b319aae | 2120 | wiphy_rfkill_stop_polling(sc->hw->wiphy); |
19d337df | 2121 | |
ff37e337 S |
2122 | /* disable HAL and put h/w to sleep */ |
2123 | ath9k_hw_disable(sc->sc_ah); | |
2124 | ath9k_hw_configpcipowersave(sc->sc_ah, 1); | |
2125 | ||
2126 | sc->sc_flags |= SC_OP_INVALID; | |
500c064d | 2127 | |
141b38b6 S |
2128 | mutex_unlock(&sc->mutex); |
2129 | ||
04bd4638 | 2130 | DPRINTF(sc, ATH_DBG_CONFIG, "Driver halt\n"); |
f078f209 LR |
2131 | } |
2132 | ||
8feceb67 VT |
2133 | static int ath9k_add_interface(struct ieee80211_hw *hw, |
2134 | struct ieee80211_if_init_conf *conf) | |
f078f209 | 2135 | { |
bce048d7 JM |
2136 | struct ath_wiphy *aphy = hw->priv; |
2137 | struct ath_softc *sc = aphy->sc; | |
17d7904d | 2138 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
d97809db | 2139 | enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; |
2c3db3d5 | 2140 | int ret = 0; |
8feceb67 | 2141 | |
141b38b6 S |
2142 | mutex_lock(&sc->mutex); |
2143 | ||
8ca21f01 JM |
2144 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) && |
2145 | sc->nvifs > 0) { | |
2146 | ret = -ENOBUFS; | |
2147 | goto out; | |
2148 | } | |
2149 | ||
8feceb67 | 2150 | switch (conf->type) { |
05c914fe | 2151 | case NL80211_IFTYPE_STATION: |
d97809db | 2152 | ic_opmode = NL80211_IFTYPE_STATION; |
f078f209 | 2153 | break; |
05c914fe | 2154 | case NL80211_IFTYPE_ADHOC: |
05c914fe | 2155 | case NL80211_IFTYPE_AP: |
9cb5412b | 2156 | case NL80211_IFTYPE_MESH_POINT: |
2c3db3d5 JM |
2157 | if (sc->nbcnvifs >= ATH_BCBUF) { |
2158 | ret = -ENOBUFS; | |
2159 | goto out; | |
2160 | } | |
9cb5412b | 2161 | ic_opmode = conf->type; |
f078f209 LR |
2162 | break; |
2163 | default: | |
2164 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 2165 | "Interface type %d not yet supported\n", conf->type); |
2c3db3d5 JM |
2166 | ret = -EOPNOTSUPP; |
2167 | goto out; | |
f078f209 LR |
2168 | } |
2169 | ||
17d7904d | 2170 | DPRINTF(sc, ATH_DBG_CONFIG, "Attach a VIF of type: %d\n", ic_opmode); |
8feceb67 | 2171 | |
17d7904d | 2172 | /* Set the VIF opmode */ |
5640b08e S |
2173 | avp->av_opmode = ic_opmode; |
2174 | avp->av_bslot = -1; | |
2175 | ||
2c3db3d5 | 2176 | sc->nvifs++; |
8ca21f01 JM |
2177 | |
2178 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) | |
2179 | ath9k_set_bssid_mask(hw); | |
2180 | ||
2c3db3d5 JM |
2181 | if (sc->nvifs > 1) |
2182 | goto out; /* skip global settings for secondary vif */ | |
2183 | ||
b238e90e | 2184 | if (ic_opmode == NL80211_IFTYPE_AP) { |
5640b08e | 2185 | ath9k_hw_set_tsfadjust(sc->sc_ah, 1); |
b238e90e S |
2186 | sc->sc_flags |= SC_OP_TSF_RESET; |
2187 | } | |
5640b08e | 2188 | |
5640b08e | 2189 | /* Set the device opmode */ |
2660b81a | 2190 | sc->sc_ah->opmode = ic_opmode; |
5640b08e | 2191 | |
4e30ffa2 VN |
2192 | /* |
2193 | * Enable MIB interrupts when there are hardware phy counters. | |
2194 | * Note we only do this (at the moment) for station mode. | |
2195 | */ | |
4af9cf4f | 2196 | if ((conf->type == NL80211_IFTYPE_STATION) || |
9cb5412b PE |
2197 | (conf->type == NL80211_IFTYPE_ADHOC) || |
2198 | (conf->type == NL80211_IFTYPE_MESH_POINT)) { | |
4af9cf4f S |
2199 | if (ath9k_hw_phycounters(sc->sc_ah)) |
2200 | sc->imask |= ATH9K_INT_MIB; | |
2201 | sc->imask |= ATH9K_INT_TSFOOR; | |
2202 | } | |
2203 | ||
17d7904d | 2204 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
4e30ffa2 | 2205 | |
f38faa31 SB |
2206 | if (conf->type == NL80211_IFTYPE_AP || |
2207 | conf->type == NL80211_IFTYPE_ADHOC || | |
2208 | conf->type == NL80211_IFTYPE_MONITOR) | |
415f738e | 2209 | ath_start_ani(sc); |
6f255425 | 2210 | |
2c3db3d5 | 2211 | out: |
141b38b6 | 2212 | mutex_unlock(&sc->mutex); |
2c3db3d5 | 2213 | return ret; |
f078f209 LR |
2214 | } |
2215 | ||
8feceb67 VT |
2216 | static void ath9k_remove_interface(struct ieee80211_hw *hw, |
2217 | struct ieee80211_if_init_conf *conf) | |
f078f209 | 2218 | { |
bce048d7 JM |
2219 | struct ath_wiphy *aphy = hw->priv; |
2220 | struct ath_softc *sc = aphy->sc; | |
17d7904d | 2221 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
2c3db3d5 | 2222 | int i; |
f078f209 | 2223 | |
04bd4638 | 2224 | DPRINTF(sc, ATH_DBG_CONFIG, "Detach Interface\n"); |
f078f209 | 2225 | |
141b38b6 S |
2226 | mutex_lock(&sc->mutex); |
2227 | ||
6f255425 | 2228 | /* Stop ANI */ |
17d7904d | 2229 | del_timer_sync(&sc->ani.timer); |
580f0b8a | 2230 | |
8feceb67 | 2231 | /* Reclaim beacon resources */ |
9cb5412b PE |
2232 | if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) || |
2233 | (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) || | |
2234 | (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) { | |
b77f483f | 2235 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
8feceb67 | 2236 | ath_beacon_return(sc, avp); |
580f0b8a | 2237 | } |
f078f209 | 2238 | |
8feceb67 | 2239 | sc->sc_flags &= ~SC_OP_BEACONS; |
f078f209 | 2240 | |
2c3db3d5 JM |
2241 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
2242 | if (sc->beacon.bslot[i] == conf->vif) { | |
2243 | printk(KERN_DEBUG "%s: vif had allocated beacon " | |
2244 | "slot\n", __func__); | |
2245 | sc->beacon.bslot[i] = NULL; | |
c52f33d0 | 2246 | sc->beacon.bslot_aphy[i] = NULL; |
2c3db3d5 JM |
2247 | } |
2248 | } | |
2249 | ||
17d7904d | 2250 | sc->nvifs--; |
141b38b6 S |
2251 | |
2252 | mutex_unlock(&sc->mutex); | |
f078f209 LR |
2253 | } |
2254 | ||
e8975581 | 2255 | static int ath9k_config(struct ieee80211_hw *hw, u32 changed) |
f078f209 | 2256 | { |
bce048d7 JM |
2257 | struct ath_wiphy *aphy = hw->priv; |
2258 | struct ath_softc *sc = aphy->sc; | |
e8975581 | 2259 | struct ieee80211_conf *conf = &hw->conf; |
8782b41d | 2260 | struct ath_hw *ah = sc->sc_ah; |
64839170 | 2261 | bool all_wiphys_idle = false, disable_radio = false; |
f078f209 | 2262 | |
aa33de09 | 2263 | mutex_lock(&sc->mutex); |
141b38b6 | 2264 | |
64839170 LR |
2265 | /* Leave this as the first check */ |
2266 | if (changed & IEEE80211_CONF_CHANGE_IDLE) { | |
2267 | ||
2268 | spin_lock_bh(&sc->wiphy_lock); | |
2269 | all_wiphys_idle = ath9k_all_wiphys_idle(sc); | |
2270 | spin_unlock_bh(&sc->wiphy_lock); | |
2271 | ||
2272 | if (conf->flags & IEEE80211_CONF_IDLE){ | |
2273 | if (all_wiphys_idle) | |
2274 | disable_radio = true; | |
2275 | } | |
2276 | else if (all_wiphys_idle) { | |
2277 | ath_radio_enable(sc); | |
2278 | DPRINTF(sc, ATH_DBG_CONFIG, | |
2279 | "not-idle: enabling radio\n"); | |
2280 | } | |
2281 | } | |
2282 | ||
3cbb5dd7 VN |
2283 | if (changed & IEEE80211_CONF_CHANGE_PS) { |
2284 | if (conf->flags & IEEE80211_CONF_PS) { | |
8782b41d VN |
2285 | if (!(ah->caps.hw_caps & |
2286 | ATH9K_HW_CAP_AUTOSLEEP)) { | |
2287 | if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { | |
2288 | sc->imask |= ATH9K_INT_TIM_TIMER; | |
2289 | ath9k_hw_set_interrupts(sc->sc_ah, | |
2290 | sc->imask); | |
2291 | } | |
2292 | ath9k_hw_setrxabort(sc->sc_ah, 1); | |
3cbb5dd7 | 2293 | } |
96148326 | 2294 | sc->ps_enabled = true; |
3cbb5dd7 | 2295 | } else { |
96148326 | 2296 | sc->ps_enabled = false; |
3cbb5dd7 | 2297 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); |
8782b41d VN |
2298 | if (!(ah->caps.hw_caps & |
2299 | ATH9K_HW_CAP_AUTOSLEEP)) { | |
2300 | ath9k_hw_setrxabort(sc->sc_ah, 0); | |
9a23f9ca JM |
2301 | sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | |
2302 | SC_OP_WAIT_FOR_CAB | | |
2303 | SC_OP_WAIT_FOR_PSPOLL_DATA | | |
2304 | SC_OP_WAIT_FOR_TX_ACK); | |
8782b41d VN |
2305 | if (sc->imask & ATH9K_INT_TIM_TIMER) { |
2306 | sc->imask &= ~ATH9K_INT_TIM_TIMER; | |
2307 | ath9k_hw_set_interrupts(sc->sc_ah, | |
2308 | sc->imask); | |
2309 | } | |
3cbb5dd7 VN |
2310 | } |
2311 | } | |
2312 | } | |
2313 | ||
4797938c | 2314 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
99405f93 | 2315 | struct ieee80211_channel *curchan = hw->conf.channel; |
5f8e077c | 2316 | int pos = curchan->hw_value; |
ae5eb026 | 2317 | |
0e2dedf9 JM |
2318 | aphy->chan_idx = pos; |
2319 | aphy->chan_is_ht = conf_is_ht(conf); | |
2320 | ||
8089cc47 JM |
2321 | if (aphy->state == ATH_WIPHY_SCAN || |
2322 | aphy->state == ATH_WIPHY_ACTIVE) | |
2323 | ath9k_wiphy_pause_all_forced(sc, aphy); | |
2324 | else { | |
2325 | /* | |
2326 | * Do not change operational channel based on a paused | |
2327 | * wiphy changes. | |
2328 | */ | |
2329 | goto skip_chan_change; | |
2330 | } | |
0e2dedf9 | 2331 | |
04bd4638 S |
2332 | DPRINTF(sc, ATH_DBG_CONFIG, "Set channel: %d MHz\n", |
2333 | curchan->center_freq); | |
f078f209 | 2334 | |
5f8e077c | 2335 | /* XXX: remove me eventualy */ |
0e2dedf9 | 2336 | ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]); |
e11602b7 | 2337 | |
ecf70441 | 2338 | ath_update_chainmask(sc, conf_is_ht(conf)); |
86060f0d | 2339 | |
0e2dedf9 | 2340 | if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { |
04bd4638 | 2341 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n"); |
aa33de09 | 2342 | mutex_unlock(&sc->mutex); |
e11602b7 S |
2343 | return -EINVAL; |
2344 | } | |
094d05dc | 2345 | } |
f078f209 | 2346 | |
8089cc47 | 2347 | skip_chan_change: |
5c020dc6 | 2348 | if (changed & IEEE80211_CONF_CHANGE_POWER) |
17d7904d | 2349 | sc->config.txpowlimit = 2 * conf->power_level; |
f078f209 | 2350 | |
64839170 LR |
2351 | if (disable_radio) { |
2352 | DPRINTF(sc, ATH_DBG_CONFIG, "idle: disabling radio\n"); | |
2353 | ath_radio_disable(sc); | |
2354 | } | |
2355 | ||
aa33de09 | 2356 | mutex_unlock(&sc->mutex); |
141b38b6 | 2357 | |
f078f209 LR |
2358 | return 0; |
2359 | } | |
2360 | ||
8feceb67 VT |
2361 | #define SUPPORTED_FILTERS \ |
2362 | (FIF_PROMISC_IN_BSS | \ | |
2363 | FIF_ALLMULTI | \ | |
2364 | FIF_CONTROL | \ | |
2365 | FIF_OTHER_BSS | \ | |
2366 | FIF_BCN_PRBRESP_PROMISC | \ | |
2367 | FIF_FCSFAIL) | |
c83be688 | 2368 | |
8feceb67 VT |
2369 | /* FIXME: sc->sc_full_reset ? */ |
2370 | static void ath9k_configure_filter(struct ieee80211_hw *hw, | |
2371 | unsigned int changed_flags, | |
2372 | unsigned int *total_flags, | |
2373 | int mc_count, | |
2374 | struct dev_mc_list *mclist) | |
2375 | { | |
bce048d7 JM |
2376 | struct ath_wiphy *aphy = hw->priv; |
2377 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2378 | u32 rfilt; |
f078f209 | 2379 | |
8feceb67 VT |
2380 | changed_flags &= SUPPORTED_FILTERS; |
2381 | *total_flags &= SUPPORTED_FILTERS; | |
f078f209 | 2382 | |
b77f483f | 2383 | sc->rx.rxfilter = *total_flags; |
aa68aeaa | 2384 | ath9k_ps_wakeup(sc); |
8feceb67 VT |
2385 | rfilt = ath_calcrxfilter(sc); |
2386 | ath9k_hw_setrxfilter(sc->sc_ah, rfilt); | |
aa68aeaa | 2387 | ath9k_ps_restore(sc); |
f078f209 | 2388 | |
b77f483f | 2389 | DPRINTF(sc, ATH_DBG_CONFIG, "Set HW RX filter: 0x%x\n", sc->rx.rxfilter); |
8feceb67 | 2390 | } |
f078f209 | 2391 | |
8feceb67 VT |
2392 | static void ath9k_sta_notify(struct ieee80211_hw *hw, |
2393 | struct ieee80211_vif *vif, | |
2394 | enum sta_notify_cmd cmd, | |
17741cdc | 2395 | struct ieee80211_sta *sta) |
8feceb67 | 2396 | { |
bce048d7 JM |
2397 | struct ath_wiphy *aphy = hw->priv; |
2398 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2399 | |
8feceb67 VT |
2400 | switch (cmd) { |
2401 | case STA_NOTIFY_ADD: | |
5640b08e | 2402 | ath_node_attach(sc, sta); |
8feceb67 VT |
2403 | break; |
2404 | case STA_NOTIFY_REMOVE: | |
b5aa9bf9 | 2405 | ath_node_detach(sc, sta); |
8feceb67 VT |
2406 | break; |
2407 | default: | |
2408 | break; | |
2409 | } | |
f078f209 LR |
2410 | } |
2411 | ||
141b38b6 | 2412 | static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
8feceb67 | 2413 | const struct ieee80211_tx_queue_params *params) |
f078f209 | 2414 | { |
bce048d7 JM |
2415 | struct ath_wiphy *aphy = hw->priv; |
2416 | struct ath_softc *sc = aphy->sc; | |
8feceb67 VT |
2417 | struct ath9k_tx_queue_info qi; |
2418 | int ret = 0, qnum; | |
f078f209 | 2419 | |
8feceb67 VT |
2420 | if (queue >= WME_NUM_AC) |
2421 | return 0; | |
f078f209 | 2422 | |
141b38b6 S |
2423 | mutex_lock(&sc->mutex); |
2424 | ||
1ffb0610 S |
2425 | memset(&qi, 0, sizeof(struct ath9k_tx_queue_info)); |
2426 | ||
8feceb67 VT |
2427 | qi.tqi_aifs = params->aifs; |
2428 | qi.tqi_cwmin = params->cw_min; | |
2429 | qi.tqi_cwmax = params->cw_max; | |
2430 | qi.tqi_burstTime = params->txop; | |
2431 | qnum = ath_get_hal_qnum(queue, sc); | |
f078f209 | 2432 | |
8feceb67 | 2433 | DPRINTF(sc, ATH_DBG_CONFIG, |
04bd4638 | 2434 | "Configure tx [queue/halq] [%d/%d], " |
8feceb67 | 2435 | "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", |
04bd4638 S |
2436 | queue, qnum, params->aifs, params->cw_min, |
2437 | params->cw_max, params->txop); | |
f078f209 | 2438 | |
8feceb67 VT |
2439 | ret = ath_txq_update(sc, qnum, &qi); |
2440 | if (ret) | |
04bd4638 | 2441 | DPRINTF(sc, ATH_DBG_FATAL, "TXQ Update failed\n"); |
f078f209 | 2442 | |
141b38b6 S |
2443 | mutex_unlock(&sc->mutex); |
2444 | ||
8feceb67 VT |
2445 | return ret; |
2446 | } | |
f078f209 | 2447 | |
8feceb67 VT |
2448 | static int ath9k_set_key(struct ieee80211_hw *hw, |
2449 | enum set_key_cmd cmd, | |
dc822b5d JB |
2450 | struct ieee80211_vif *vif, |
2451 | struct ieee80211_sta *sta, | |
8feceb67 VT |
2452 | struct ieee80211_key_conf *key) |
2453 | { | |
bce048d7 JM |
2454 | struct ath_wiphy *aphy = hw->priv; |
2455 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2456 | int ret = 0; |
f078f209 | 2457 | |
b3bd89ce JM |
2458 | if (modparam_nohwcrypt) |
2459 | return -ENOSPC; | |
2460 | ||
141b38b6 | 2461 | mutex_lock(&sc->mutex); |
3cbb5dd7 | 2462 | ath9k_ps_wakeup(sc); |
d8baa939 | 2463 | DPRINTF(sc, ATH_DBG_CONFIG, "Set HW Key\n"); |
f078f209 | 2464 | |
8feceb67 VT |
2465 | switch (cmd) { |
2466 | case SET_KEY: | |
3f53dd64 | 2467 | ret = ath_key_config(sc, vif, sta, key); |
6ace2891 JM |
2468 | if (ret >= 0) { |
2469 | key->hw_key_idx = ret; | |
8feceb67 VT |
2470 | /* push IV and Michael MIC generation to stack */ |
2471 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
2472 | if (key->alg == ALG_TKIP) | |
2473 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
0ced0e17 JM |
2474 | if (sc->sc_ah->sw_mgmt_crypto && key->alg == ALG_CCMP) |
2475 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; | |
6ace2891 | 2476 | ret = 0; |
8feceb67 VT |
2477 | } |
2478 | break; | |
2479 | case DISABLE_KEY: | |
2480 | ath_key_delete(sc, key); | |
8feceb67 VT |
2481 | break; |
2482 | default: | |
2483 | ret = -EINVAL; | |
2484 | } | |
f078f209 | 2485 | |
3cbb5dd7 | 2486 | ath9k_ps_restore(sc); |
141b38b6 S |
2487 | mutex_unlock(&sc->mutex); |
2488 | ||
8feceb67 VT |
2489 | return ret; |
2490 | } | |
f078f209 | 2491 | |
8feceb67 VT |
2492 | static void ath9k_bss_info_changed(struct ieee80211_hw *hw, |
2493 | struct ieee80211_vif *vif, | |
2494 | struct ieee80211_bss_conf *bss_conf, | |
2495 | u32 changed) | |
2496 | { | |
bce048d7 JM |
2497 | struct ath_wiphy *aphy = hw->priv; |
2498 | struct ath_softc *sc = aphy->sc; | |
2d0ddec5 JB |
2499 | struct ath_hw *ah = sc->sc_ah; |
2500 | struct ath_vif *avp = (void *)vif->drv_priv; | |
2501 | u32 rfilt = 0; | |
2502 | int error, i; | |
f078f209 | 2503 | |
141b38b6 S |
2504 | mutex_lock(&sc->mutex); |
2505 | ||
2d0ddec5 JB |
2506 | /* |
2507 | * TODO: Need to decide which hw opmode to use for | |
2508 | * multi-interface cases | |
2509 | * XXX: This belongs into add_interface! | |
2510 | */ | |
2511 | if (vif->type == NL80211_IFTYPE_AP && | |
2512 | ah->opmode != NL80211_IFTYPE_AP) { | |
2513 | ah->opmode = NL80211_IFTYPE_STATION; | |
2514 | ath9k_hw_setopmode(ah); | |
2515 | memcpy(sc->curbssid, sc->sc_ah->macaddr, ETH_ALEN); | |
2516 | sc->curaid = 0; | |
2517 | ath9k_hw_write_associd(sc); | |
2518 | /* Request full reset to get hw opmode changed properly */ | |
2519 | sc->sc_flags |= SC_OP_FULL_RESET; | |
2520 | } | |
2521 | ||
2522 | if ((changed & BSS_CHANGED_BSSID) && | |
2523 | !is_zero_ether_addr(bss_conf->bssid)) { | |
2524 | switch (vif->type) { | |
2525 | case NL80211_IFTYPE_STATION: | |
2526 | case NL80211_IFTYPE_ADHOC: | |
2527 | case NL80211_IFTYPE_MESH_POINT: | |
2528 | /* Set BSSID */ | |
2529 | memcpy(sc->curbssid, bss_conf->bssid, ETH_ALEN); | |
2530 | memcpy(avp->bssid, bss_conf->bssid, ETH_ALEN); | |
2531 | sc->curaid = 0; | |
2532 | ath9k_hw_write_associd(sc); | |
2533 | ||
2534 | /* Set aggregation protection mode parameters */ | |
2535 | sc->config.ath_aggr_prot = 0; | |
2536 | ||
2537 | DPRINTF(sc, ATH_DBG_CONFIG, | |
2538 | "RX filter 0x%x bssid %pM aid 0x%x\n", | |
2539 | rfilt, sc->curbssid, sc->curaid); | |
2540 | ||
2541 | /* need to reconfigure the beacon */ | |
2542 | sc->sc_flags &= ~SC_OP_BEACONS ; | |
2543 | ||
2544 | break; | |
2545 | default: | |
2546 | break; | |
2547 | } | |
2548 | } | |
2549 | ||
2550 | if ((vif->type == NL80211_IFTYPE_ADHOC) || | |
2551 | (vif->type == NL80211_IFTYPE_AP) || | |
2552 | (vif->type == NL80211_IFTYPE_MESH_POINT)) { | |
2553 | if ((changed & BSS_CHANGED_BEACON) || | |
2554 | (changed & BSS_CHANGED_BEACON_ENABLED && | |
2555 | bss_conf->enable_beacon)) { | |
2556 | /* | |
2557 | * Allocate and setup the beacon frame. | |
2558 | * | |
2559 | * Stop any previous beacon DMA. This may be | |
2560 | * necessary, for example, when an ibss merge | |
2561 | * causes reconfiguration; we may be called | |
2562 | * with beacon transmission active. | |
2563 | */ | |
2564 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); | |
2565 | ||
2566 | error = ath_beacon_alloc(aphy, vif); | |
2567 | if (!error) | |
2568 | ath_beacon_config(sc, vif); | |
2569 | } | |
2570 | } | |
2571 | ||
2572 | /* Check for WLAN_CAPABILITY_PRIVACY ? */ | |
2573 | if ((avp->av_opmode != NL80211_IFTYPE_STATION)) { | |
2574 | for (i = 0; i < IEEE80211_WEP_NKID; i++) | |
2575 | if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i)) | |
2576 | ath9k_hw_keysetmac(sc->sc_ah, | |
2577 | (u16)i, | |
2578 | sc->curbssid); | |
2579 | } | |
2580 | ||
2581 | /* Only legacy IBSS for now */ | |
2582 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
2583 | ath_update_chainmask(sc, 0); | |
2584 | ||
8feceb67 | 2585 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
04bd4638 | 2586 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", |
8feceb67 VT |
2587 | bss_conf->use_short_preamble); |
2588 | if (bss_conf->use_short_preamble) | |
2589 | sc->sc_flags |= SC_OP_PREAMBLE_SHORT; | |
2590 | else | |
2591 | sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; | |
2592 | } | |
f078f209 | 2593 | |
8feceb67 | 2594 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
04bd4638 | 2595 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", |
8feceb67 VT |
2596 | bss_conf->use_cts_prot); |
2597 | if (bss_conf->use_cts_prot && | |
2598 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) | |
2599 | sc->sc_flags |= SC_OP_PROTECT_ENABLE; | |
2600 | else | |
2601 | sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; | |
2602 | } | |
f078f209 | 2603 | |
8feceb67 | 2604 | if (changed & BSS_CHANGED_ASSOC) { |
04bd4638 | 2605 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", |
8feceb67 | 2606 | bss_conf->assoc); |
5640b08e | 2607 | ath9k_bss_assoc_info(sc, vif, bss_conf); |
8feceb67 | 2608 | } |
141b38b6 | 2609 | |
57c4d7b4 JB |
2610 | /* |
2611 | * The HW TSF has to be reset when the beacon interval changes. | |
2612 | * We set the flag here, and ath_beacon_config_ap() would take this | |
2613 | * into account when it gets called through the subsequent | |
2614 | * config_interface() call - with IFCC_BEACON in the changed field. | |
2615 | */ | |
2616 | ||
2617 | if (changed & BSS_CHANGED_BEACON_INT) { | |
2618 | sc->sc_flags |= SC_OP_TSF_RESET; | |
2619 | sc->beacon_interval = bss_conf->beacon_int; | |
2620 | } | |
2621 | ||
141b38b6 | 2622 | mutex_unlock(&sc->mutex); |
8feceb67 | 2623 | } |
f078f209 | 2624 | |
8feceb67 VT |
2625 | static u64 ath9k_get_tsf(struct ieee80211_hw *hw) |
2626 | { | |
2627 | u64 tsf; | |
bce048d7 JM |
2628 | struct ath_wiphy *aphy = hw->priv; |
2629 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2630 | |
141b38b6 S |
2631 | mutex_lock(&sc->mutex); |
2632 | tsf = ath9k_hw_gettsf64(sc->sc_ah); | |
2633 | mutex_unlock(&sc->mutex); | |
f078f209 | 2634 | |
8feceb67 VT |
2635 | return tsf; |
2636 | } | |
f078f209 | 2637 | |
3b5d665b AF |
2638 | static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
2639 | { | |
bce048d7 JM |
2640 | struct ath_wiphy *aphy = hw->priv; |
2641 | struct ath_softc *sc = aphy->sc; | |
3b5d665b | 2642 | |
141b38b6 S |
2643 | mutex_lock(&sc->mutex); |
2644 | ath9k_hw_settsf64(sc->sc_ah, tsf); | |
2645 | mutex_unlock(&sc->mutex); | |
3b5d665b AF |
2646 | } |
2647 | ||
8feceb67 VT |
2648 | static void ath9k_reset_tsf(struct ieee80211_hw *hw) |
2649 | { | |
bce048d7 JM |
2650 | struct ath_wiphy *aphy = hw->priv; |
2651 | struct ath_softc *sc = aphy->sc; | |
c83be688 | 2652 | |
141b38b6 S |
2653 | mutex_lock(&sc->mutex); |
2654 | ath9k_hw_reset_tsf(sc->sc_ah); | |
2655 | mutex_unlock(&sc->mutex); | |
8feceb67 | 2656 | } |
f078f209 | 2657 | |
8feceb67 | 2658 | static int ath9k_ampdu_action(struct ieee80211_hw *hw, |
141b38b6 S |
2659 | enum ieee80211_ampdu_mlme_action action, |
2660 | struct ieee80211_sta *sta, | |
2661 | u16 tid, u16 *ssn) | |
8feceb67 | 2662 | { |
bce048d7 JM |
2663 | struct ath_wiphy *aphy = hw->priv; |
2664 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2665 | int ret = 0; |
f078f209 | 2666 | |
8feceb67 VT |
2667 | switch (action) { |
2668 | case IEEE80211_AMPDU_RX_START: | |
dca3edb8 S |
2669 | if (!(sc->sc_flags & SC_OP_RXAGGR)) |
2670 | ret = -ENOTSUPP; | |
8feceb67 VT |
2671 | break; |
2672 | case IEEE80211_AMPDU_RX_STOP: | |
8feceb67 VT |
2673 | break; |
2674 | case IEEE80211_AMPDU_TX_START: | |
f83da965 S |
2675 | ath_tx_aggr_start(sc, sta, tid, ssn); |
2676 | ieee80211_start_tx_ba_cb_irqsafe(hw, sta->addr, tid); | |
8feceb67 VT |
2677 | break; |
2678 | case IEEE80211_AMPDU_TX_STOP: | |
f83da965 | 2679 | ath_tx_aggr_stop(sc, sta, tid); |
17741cdc | 2680 | ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
8feceb67 | 2681 | break; |
b1720231 | 2682 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
8469cdef S |
2683 | ath_tx_aggr_resume(sc, sta, tid); |
2684 | break; | |
8feceb67 | 2685 | default: |
04bd4638 | 2686 | DPRINTF(sc, ATH_DBG_FATAL, "Unknown AMPDU action\n"); |
8feceb67 VT |
2687 | } |
2688 | ||
2689 | return ret; | |
f078f209 LR |
2690 | } |
2691 | ||
0c98de65 S |
2692 | static void ath9k_sw_scan_start(struct ieee80211_hw *hw) |
2693 | { | |
bce048d7 JM |
2694 | struct ath_wiphy *aphy = hw->priv; |
2695 | struct ath_softc *sc = aphy->sc; | |
0c98de65 | 2696 | |
8089cc47 JM |
2697 | if (ath9k_wiphy_scanning(sc)) { |
2698 | printk(KERN_DEBUG "ath9k: Two wiphys trying to scan at the " | |
2699 | "same time\n"); | |
2700 | /* | |
2701 | * Do not allow the concurrent scanning state for now. This | |
2702 | * could be improved with scanning control moved into ath9k. | |
2703 | */ | |
2704 | return; | |
2705 | } | |
2706 | ||
2707 | aphy->state = ATH_WIPHY_SCAN; | |
2708 | ath9k_wiphy_pause_all_forced(sc, aphy); | |
2709 | ||
e5f0921a | 2710 | spin_lock_bh(&sc->ani_lock); |
0c98de65 | 2711 | sc->sc_flags |= SC_OP_SCANNING; |
e5f0921a | 2712 | spin_unlock_bh(&sc->ani_lock); |
0c98de65 S |
2713 | } |
2714 | ||
2715 | static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) | |
2716 | { | |
bce048d7 JM |
2717 | struct ath_wiphy *aphy = hw->priv; |
2718 | struct ath_softc *sc = aphy->sc; | |
0c98de65 | 2719 | |
e5f0921a | 2720 | spin_lock_bh(&sc->ani_lock); |
8089cc47 | 2721 | aphy->state = ATH_WIPHY_ACTIVE; |
0c98de65 | 2722 | sc->sc_flags &= ~SC_OP_SCANNING; |
9c07a777 | 2723 | sc->sc_flags |= SC_OP_FULL_RESET; |
e5f0921a | 2724 | spin_unlock_bh(&sc->ani_lock); |
0c98de65 S |
2725 | } |
2726 | ||
6baff7f9 | 2727 | struct ieee80211_ops ath9k_ops = { |
8feceb67 VT |
2728 | .tx = ath9k_tx, |
2729 | .start = ath9k_start, | |
2730 | .stop = ath9k_stop, | |
2731 | .add_interface = ath9k_add_interface, | |
2732 | .remove_interface = ath9k_remove_interface, | |
2733 | .config = ath9k_config, | |
8feceb67 | 2734 | .configure_filter = ath9k_configure_filter, |
8feceb67 VT |
2735 | .sta_notify = ath9k_sta_notify, |
2736 | .conf_tx = ath9k_conf_tx, | |
8feceb67 | 2737 | .bss_info_changed = ath9k_bss_info_changed, |
8feceb67 | 2738 | .set_key = ath9k_set_key, |
8feceb67 | 2739 | .get_tsf = ath9k_get_tsf, |
3b5d665b | 2740 | .set_tsf = ath9k_set_tsf, |
8feceb67 | 2741 | .reset_tsf = ath9k_reset_tsf, |
4233df6b | 2742 | .ampdu_action = ath9k_ampdu_action, |
0c98de65 S |
2743 | .sw_scan_start = ath9k_sw_scan_start, |
2744 | .sw_scan_complete = ath9k_sw_scan_complete, | |
3b319aae | 2745 | .rfkill_poll = ath9k_rfkill_poll_state, |
8feceb67 VT |
2746 | }; |
2747 | ||
392dff83 BP |
2748 | static struct { |
2749 | u32 version; | |
2750 | const char * name; | |
2751 | } ath_mac_bb_names[] = { | |
2752 | { AR_SREV_VERSION_5416_PCI, "5416" }, | |
2753 | { AR_SREV_VERSION_5416_PCIE, "5418" }, | |
2754 | { AR_SREV_VERSION_9100, "9100" }, | |
2755 | { AR_SREV_VERSION_9160, "9160" }, | |
2756 | { AR_SREV_VERSION_9280, "9280" }, | |
ac88b6ec VN |
2757 | { AR_SREV_VERSION_9285, "9285" }, |
2758 | { AR_SREV_VERSION_9287, "9287" } | |
392dff83 BP |
2759 | }; |
2760 | ||
2761 | static struct { | |
2762 | u16 version; | |
2763 | const char * name; | |
2764 | } ath_rf_names[] = { | |
2765 | { 0, "5133" }, | |
2766 | { AR_RAD5133_SREV_MAJOR, "5133" }, | |
2767 | { AR_RAD5122_SREV_MAJOR, "5122" }, | |
2768 | { AR_RAD2133_SREV_MAJOR, "2133" }, | |
2769 | { AR_RAD2122_SREV_MAJOR, "2122" } | |
2770 | }; | |
2771 | ||
2772 | /* | |
2773 | * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown. | |
2774 | */ | |
6baff7f9 | 2775 | const char * |
392dff83 BP |
2776 | ath_mac_bb_name(u32 mac_bb_version) |
2777 | { | |
2778 | int i; | |
2779 | ||
2780 | for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) { | |
2781 | if (ath_mac_bb_names[i].version == mac_bb_version) { | |
2782 | return ath_mac_bb_names[i].name; | |
2783 | } | |
2784 | } | |
2785 | ||
2786 | return "????"; | |
2787 | } | |
2788 | ||
2789 | /* | |
2790 | * Return the RF name. "????" is returned if the RF is unknown. | |
2791 | */ | |
6baff7f9 | 2792 | const char * |
392dff83 BP |
2793 | ath_rf_name(u16 rf_version) |
2794 | { | |
2795 | int i; | |
2796 | ||
2797 | for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) { | |
2798 | if (ath_rf_names[i].version == rf_version) { | |
2799 | return ath_rf_names[i].name; | |
2800 | } | |
2801 | } | |
2802 | ||
2803 | return "????"; | |
2804 | } | |
2805 | ||
6baff7f9 | 2806 | static int __init ath9k_init(void) |
f078f209 | 2807 | { |
ca8a8560 VT |
2808 | int error; |
2809 | ||
ca8a8560 VT |
2810 | /* Register rate control algorithm */ |
2811 | error = ath_rate_control_register(); | |
2812 | if (error != 0) { | |
2813 | printk(KERN_ERR | |
b51bb3cd LR |
2814 | "ath9k: Unable to register rate control " |
2815 | "algorithm: %d\n", | |
ca8a8560 | 2816 | error); |
6baff7f9 | 2817 | goto err_out; |
ca8a8560 VT |
2818 | } |
2819 | ||
19d8bc22 GJ |
2820 | error = ath9k_debug_create_root(); |
2821 | if (error) { | |
2822 | printk(KERN_ERR | |
2823 | "ath9k: Unable to create debugfs root: %d\n", | |
2824 | error); | |
2825 | goto err_rate_unregister; | |
2826 | } | |
2827 | ||
6baff7f9 GJ |
2828 | error = ath_pci_init(); |
2829 | if (error < 0) { | |
f078f209 | 2830 | printk(KERN_ERR |
b51bb3cd | 2831 | "ath9k: No PCI devices found, driver not installed.\n"); |
6baff7f9 | 2832 | error = -ENODEV; |
19d8bc22 | 2833 | goto err_remove_root; |
f078f209 LR |
2834 | } |
2835 | ||
09329d37 GJ |
2836 | error = ath_ahb_init(); |
2837 | if (error < 0) { | |
2838 | error = -ENODEV; | |
2839 | goto err_pci_exit; | |
2840 | } | |
2841 | ||
f078f209 | 2842 | return 0; |
6baff7f9 | 2843 | |
09329d37 GJ |
2844 | err_pci_exit: |
2845 | ath_pci_exit(); | |
2846 | ||
19d8bc22 GJ |
2847 | err_remove_root: |
2848 | ath9k_debug_remove_root(); | |
6baff7f9 GJ |
2849 | err_rate_unregister: |
2850 | ath_rate_control_unregister(); | |
2851 | err_out: | |
2852 | return error; | |
f078f209 | 2853 | } |
6baff7f9 | 2854 | module_init(ath9k_init); |
f078f209 | 2855 | |
6baff7f9 | 2856 | static void __exit ath9k_exit(void) |
f078f209 | 2857 | { |
09329d37 | 2858 | ath_ahb_exit(); |
6baff7f9 | 2859 | ath_pci_exit(); |
19d8bc22 | 2860 | ath9k_debug_remove_root(); |
ca8a8560 | 2861 | ath_rate_control_unregister(); |
04bd4638 | 2862 | printk(KERN_INFO "%s: Driver unloaded\n", dev_info); |
f078f209 | 2863 | } |
6baff7f9 | 2864 | module_exit(ath9k_exit); |