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 LR |
19 | |
20 | #define ATH_PCI_VERSION "0.1" | |
21 | ||
f078f209 LR |
22 | static char *dev_info = "ath9k"; |
23 | ||
24 | MODULE_AUTHOR("Atheros Communications"); | |
25 | MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards."); | |
26 | MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards"); | |
27 | MODULE_LICENSE("Dual BSD/GPL"); | |
28 | ||
b3bd89ce JM |
29 | static int modparam_nohwcrypt; |
30 | module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); | |
31 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption"); | |
32 | ||
5f8e077c LR |
33 | /* We use the hw_value as an index into our private channel structure */ |
34 | ||
35 | #define CHAN2G(_freq, _idx) { \ | |
36 | .center_freq = (_freq), \ | |
37 | .hw_value = (_idx), \ | |
38 | .max_power = 30, \ | |
39 | } | |
40 | ||
41 | #define CHAN5G(_freq, _idx) { \ | |
42 | .band = IEEE80211_BAND_5GHZ, \ | |
43 | .center_freq = (_freq), \ | |
44 | .hw_value = (_idx), \ | |
45 | .max_power = 30, \ | |
46 | } | |
47 | ||
48 | /* Some 2 GHz radios are actually tunable on 2312-2732 | |
49 | * on 5 MHz steps, we support the channels which we know | |
50 | * we have calibration data for all cards though to make | |
51 | * this static */ | |
52 | static struct ieee80211_channel ath9k_2ghz_chantable[] = { | |
53 | CHAN2G(2412, 0), /* Channel 1 */ | |
54 | CHAN2G(2417, 1), /* Channel 2 */ | |
55 | CHAN2G(2422, 2), /* Channel 3 */ | |
56 | CHAN2G(2427, 3), /* Channel 4 */ | |
57 | CHAN2G(2432, 4), /* Channel 5 */ | |
58 | CHAN2G(2437, 5), /* Channel 6 */ | |
59 | CHAN2G(2442, 6), /* Channel 7 */ | |
60 | CHAN2G(2447, 7), /* Channel 8 */ | |
61 | CHAN2G(2452, 8), /* Channel 9 */ | |
62 | CHAN2G(2457, 9), /* Channel 10 */ | |
63 | CHAN2G(2462, 10), /* Channel 11 */ | |
64 | CHAN2G(2467, 11), /* Channel 12 */ | |
65 | CHAN2G(2472, 12), /* Channel 13 */ | |
66 | CHAN2G(2484, 13), /* Channel 14 */ | |
67 | }; | |
68 | ||
69 | /* Some 5 GHz radios are actually tunable on XXXX-YYYY | |
70 | * on 5 MHz steps, we support the channels which we know | |
71 | * we have calibration data for all cards though to make | |
72 | * this static */ | |
73 | static struct ieee80211_channel ath9k_5ghz_chantable[] = { | |
74 | /* _We_ call this UNII 1 */ | |
75 | CHAN5G(5180, 14), /* Channel 36 */ | |
76 | CHAN5G(5200, 15), /* Channel 40 */ | |
77 | CHAN5G(5220, 16), /* Channel 44 */ | |
78 | CHAN5G(5240, 17), /* Channel 48 */ | |
79 | /* _We_ call this UNII 2 */ | |
80 | CHAN5G(5260, 18), /* Channel 52 */ | |
81 | CHAN5G(5280, 19), /* Channel 56 */ | |
82 | CHAN5G(5300, 20), /* Channel 60 */ | |
83 | CHAN5G(5320, 21), /* Channel 64 */ | |
84 | /* _We_ call this "Middle band" */ | |
85 | CHAN5G(5500, 22), /* Channel 100 */ | |
86 | CHAN5G(5520, 23), /* Channel 104 */ | |
87 | CHAN5G(5540, 24), /* Channel 108 */ | |
88 | CHAN5G(5560, 25), /* Channel 112 */ | |
89 | CHAN5G(5580, 26), /* Channel 116 */ | |
90 | CHAN5G(5600, 27), /* Channel 120 */ | |
91 | CHAN5G(5620, 28), /* Channel 124 */ | |
92 | CHAN5G(5640, 29), /* Channel 128 */ | |
93 | CHAN5G(5660, 30), /* Channel 132 */ | |
94 | CHAN5G(5680, 31), /* Channel 136 */ | |
95 | CHAN5G(5700, 32), /* Channel 140 */ | |
96 | /* _We_ call this UNII 3 */ | |
97 | CHAN5G(5745, 33), /* Channel 149 */ | |
98 | CHAN5G(5765, 34), /* Channel 153 */ | |
99 | CHAN5G(5785, 35), /* Channel 157 */ | |
100 | CHAN5G(5805, 36), /* Channel 161 */ | |
101 | CHAN5G(5825, 37), /* Channel 165 */ | |
102 | }; | |
103 | ||
ce111bad LR |
104 | static void ath_cache_conf_rate(struct ath_softc *sc, |
105 | struct ieee80211_conf *conf) | |
ff37e337 | 106 | { |
030bb495 LR |
107 | switch (conf->channel->band) { |
108 | case IEEE80211_BAND_2GHZ: | |
109 | if (conf_is_ht20(conf)) | |
110 | sc->cur_rate_table = | |
111 | sc->hw_rate_table[ATH9K_MODE_11NG_HT20]; | |
112 | else if (conf_is_ht40_minus(conf)) | |
113 | sc->cur_rate_table = | |
114 | sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS]; | |
115 | else if (conf_is_ht40_plus(conf)) | |
116 | sc->cur_rate_table = | |
117 | sc->hw_rate_table[ATH9K_MODE_11NG_HT40PLUS]; | |
96742256 | 118 | else |
030bb495 LR |
119 | sc->cur_rate_table = |
120 | sc->hw_rate_table[ATH9K_MODE_11G]; | |
030bb495 LR |
121 | break; |
122 | case IEEE80211_BAND_5GHZ: | |
123 | if (conf_is_ht20(conf)) | |
124 | sc->cur_rate_table = | |
125 | sc->hw_rate_table[ATH9K_MODE_11NA_HT20]; | |
126 | else if (conf_is_ht40_minus(conf)) | |
127 | sc->cur_rate_table = | |
128 | sc->hw_rate_table[ATH9K_MODE_11NA_HT40MINUS]; | |
129 | else if (conf_is_ht40_plus(conf)) | |
130 | sc->cur_rate_table = | |
131 | sc->hw_rate_table[ATH9K_MODE_11NA_HT40PLUS]; | |
132 | else | |
96742256 LR |
133 | sc->cur_rate_table = |
134 | sc->hw_rate_table[ATH9K_MODE_11A]; | |
030bb495 LR |
135 | break; |
136 | default: | |
ce111bad | 137 | BUG_ON(1); |
030bb495 LR |
138 | break; |
139 | } | |
ff37e337 S |
140 | } |
141 | ||
142 | static void ath_update_txpow(struct ath_softc *sc) | |
143 | { | |
cbe61d8a | 144 | struct ath_hw *ah = sc->sc_ah; |
ff37e337 S |
145 | u32 txpow; |
146 | ||
17d7904d S |
147 | if (sc->curtxpow != sc->config.txpowlimit) { |
148 | ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit); | |
ff37e337 S |
149 | /* read back in case value is clamped */ |
150 | ath9k_hw_getcapability(ah, ATH9K_CAP_TXPOW, 1, &txpow); | |
17d7904d | 151 | sc->curtxpow = txpow; |
ff37e337 S |
152 | } |
153 | } | |
154 | ||
155 | static u8 parse_mpdudensity(u8 mpdudensity) | |
156 | { | |
157 | /* | |
158 | * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": | |
159 | * 0 for no restriction | |
160 | * 1 for 1/4 us | |
161 | * 2 for 1/2 us | |
162 | * 3 for 1 us | |
163 | * 4 for 2 us | |
164 | * 5 for 4 us | |
165 | * 6 for 8 us | |
166 | * 7 for 16 us | |
167 | */ | |
168 | switch (mpdudensity) { | |
169 | case 0: | |
170 | return 0; | |
171 | case 1: | |
172 | case 2: | |
173 | case 3: | |
174 | /* Our lower layer calculations limit our precision to | |
175 | 1 microsecond */ | |
176 | return 1; | |
177 | case 4: | |
178 | return 2; | |
179 | case 5: | |
180 | return 4; | |
181 | case 6: | |
182 | return 8; | |
183 | case 7: | |
184 | return 16; | |
185 | default: | |
186 | return 0; | |
187 | } | |
188 | } | |
189 | ||
190 | static void ath_setup_rates(struct ath_softc *sc, enum ieee80211_band band) | |
191 | { | |
4f0fc7c3 | 192 | const struct ath_rate_table *rate_table = NULL; |
ff37e337 S |
193 | struct ieee80211_supported_band *sband; |
194 | struct ieee80211_rate *rate; | |
195 | int i, maxrates; | |
196 | ||
197 | switch (band) { | |
198 | case IEEE80211_BAND_2GHZ: | |
199 | rate_table = sc->hw_rate_table[ATH9K_MODE_11G]; | |
200 | break; | |
201 | case IEEE80211_BAND_5GHZ: | |
202 | rate_table = sc->hw_rate_table[ATH9K_MODE_11A]; | |
203 | break; | |
204 | default: | |
205 | break; | |
206 | } | |
207 | ||
208 | if (rate_table == NULL) | |
209 | return; | |
210 | ||
211 | sband = &sc->sbands[band]; | |
212 | rate = sc->rates[band]; | |
213 | ||
214 | if (rate_table->rate_cnt > ATH_RATE_MAX) | |
215 | maxrates = ATH_RATE_MAX; | |
216 | else | |
217 | maxrates = rate_table->rate_cnt; | |
218 | ||
219 | for (i = 0; i < maxrates; i++) { | |
220 | rate[i].bitrate = rate_table->info[i].ratekbps / 100; | |
221 | rate[i].hw_value = rate_table->info[i].ratecode; | |
f46730d1 S |
222 | if (rate_table->info[i].short_preamble) { |
223 | rate[i].hw_value_short = rate_table->info[i].ratecode | | |
224 | rate_table->info[i].short_preamble; | |
225 | rate[i].flags = IEEE80211_RATE_SHORT_PREAMBLE; | |
226 | } | |
ff37e337 | 227 | sband->n_bitrates++; |
f46730d1 | 228 | |
04bd4638 S |
229 | DPRINTF(sc, ATH_DBG_CONFIG, "Rate: %2dMbps, ratecode: %2d\n", |
230 | rate[i].bitrate / 10, rate[i].hw_value); | |
ff37e337 S |
231 | } |
232 | } | |
233 | ||
ff37e337 S |
234 | /* |
235 | * Set/change channels. If the channel is really being changed, it's done | |
236 | * by reseting the chip. To accomplish this we must first cleanup any pending | |
237 | * DMA, then restart stuff. | |
238 | */ | |
0e2dedf9 JM |
239 | int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, |
240 | struct ath9k_channel *hchan) | |
ff37e337 | 241 | { |
cbe61d8a | 242 | struct ath_hw *ah = sc->sc_ah; |
ff37e337 | 243 | bool fastcc = true, stopped; |
ae8d2858 LR |
244 | struct ieee80211_channel *channel = hw->conf.channel; |
245 | int r; | |
ff37e337 S |
246 | |
247 | if (sc->sc_flags & SC_OP_INVALID) | |
248 | return -EIO; | |
249 | ||
3cbb5dd7 VN |
250 | ath9k_ps_wakeup(sc); |
251 | ||
c0d7c7af LR |
252 | /* |
253 | * This is only performed if the channel settings have | |
254 | * actually changed. | |
255 | * | |
256 | * To switch channels clear any pending DMA operations; | |
257 | * wait long enough for the RX fifo to drain, reset the | |
258 | * hardware at the new frequency, and then re-enable | |
259 | * the relevant bits of the h/w. | |
260 | */ | |
261 | ath9k_hw_set_interrupts(ah, 0); | |
043a0405 | 262 | ath_drain_all_txq(sc, false); |
c0d7c7af | 263 | stopped = ath_stoprecv(sc); |
ff37e337 | 264 | |
c0d7c7af LR |
265 | /* XXX: do not flush receive queue here. We don't want |
266 | * to flush data frames already in queue because of | |
267 | * changing channel. */ | |
ff37e337 | 268 | |
c0d7c7af LR |
269 | if (!stopped || (sc->sc_flags & SC_OP_FULL_RESET)) |
270 | fastcc = false; | |
271 | ||
272 | DPRINTF(sc, ATH_DBG_CONFIG, | |
273 | "(%u MHz) -> (%u MHz), chanwidth: %d\n", | |
2660b81a | 274 | sc->sc_ah->curchan->channel, |
c0d7c7af | 275 | channel->center_freq, sc->tx_chan_width); |
ff37e337 | 276 | |
c0d7c7af LR |
277 | spin_lock_bh(&sc->sc_resetlock); |
278 | ||
279 | r = ath9k_hw_reset(ah, hchan, fastcc); | |
280 | if (r) { | |
281 | DPRINTF(sc, ATH_DBG_FATAL, | |
282 | "Unable to reset channel (%u Mhz) " | |
6b45784f | 283 | "reset status %d\n", |
c0d7c7af LR |
284 | channel->center_freq, r); |
285 | spin_unlock_bh(&sc->sc_resetlock); | |
286 | return r; | |
ff37e337 | 287 | } |
c0d7c7af LR |
288 | spin_unlock_bh(&sc->sc_resetlock); |
289 | ||
c0d7c7af LR |
290 | sc->sc_flags &= ~SC_OP_FULL_RESET; |
291 | ||
292 | if (ath_startrecv(sc) != 0) { | |
293 | DPRINTF(sc, ATH_DBG_FATAL, | |
294 | "Unable to restart recv logic\n"); | |
295 | return -EIO; | |
296 | } | |
297 | ||
298 | ath_cache_conf_rate(sc, &hw->conf); | |
299 | ath_update_txpow(sc); | |
17d7904d | 300 | ath9k_hw_set_interrupts(ah, sc->imask); |
3cbb5dd7 | 301 | ath9k_ps_restore(sc); |
ff37e337 S |
302 | return 0; |
303 | } | |
304 | ||
305 | /* | |
306 | * This routine performs the periodic noise floor calibration function | |
307 | * that is used to adjust and optimize the chip performance. This | |
308 | * takes environmental changes (location, temperature) into account. | |
309 | * When the task is complete, it reschedules itself depending on the | |
310 | * appropriate interval that was calculated. | |
311 | */ | |
312 | static void ath_ani_calibrate(unsigned long data) | |
313 | { | |
20977d3e S |
314 | struct ath_softc *sc = (struct ath_softc *)data; |
315 | struct ath_hw *ah = sc->sc_ah; | |
ff37e337 S |
316 | bool longcal = false; |
317 | bool shortcal = false; | |
318 | bool aniflag = false; | |
319 | unsigned int timestamp = jiffies_to_msecs(jiffies); | |
20977d3e | 320 | u32 cal_interval, short_cal_interval; |
ff37e337 | 321 | |
20977d3e S |
322 | short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? |
323 | ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; | |
ff37e337 S |
324 | |
325 | /* | |
326 | * don't calibrate when we're scanning. | |
327 | * we are most likely not on our home channel. | |
328 | */ | |
0c98de65 | 329 | if (sc->sc_flags & SC_OP_SCANNING) |
20977d3e | 330 | goto set_timer; |
ff37e337 S |
331 | |
332 | /* Long calibration runs independently of short calibration. */ | |
17d7904d | 333 | if ((timestamp - sc->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) { |
ff37e337 | 334 | longcal = true; |
04bd4638 | 335 | DPRINTF(sc, ATH_DBG_ANI, "longcal @%lu\n", jiffies); |
17d7904d | 336 | sc->ani.longcal_timer = timestamp; |
ff37e337 S |
337 | } |
338 | ||
17d7904d S |
339 | /* Short calibration applies only while caldone is false */ |
340 | if (!sc->ani.caldone) { | |
20977d3e | 341 | if ((timestamp - sc->ani.shortcal_timer) >= short_cal_interval) { |
ff37e337 | 342 | shortcal = true; |
04bd4638 | 343 | DPRINTF(sc, ATH_DBG_ANI, "shortcal @%lu\n", jiffies); |
17d7904d S |
344 | sc->ani.shortcal_timer = timestamp; |
345 | sc->ani.resetcal_timer = timestamp; | |
ff37e337 S |
346 | } |
347 | } else { | |
17d7904d | 348 | if ((timestamp - sc->ani.resetcal_timer) >= |
ff37e337 | 349 | ATH_RESTART_CALINTERVAL) { |
17d7904d S |
350 | sc->ani.caldone = ath9k_hw_reset_calvalid(ah); |
351 | if (sc->ani.caldone) | |
352 | sc->ani.resetcal_timer = timestamp; | |
ff37e337 S |
353 | } |
354 | } | |
355 | ||
356 | /* Verify whether we must check ANI */ | |
20977d3e | 357 | if ((timestamp - sc->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) { |
ff37e337 | 358 | aniflag = true; |
17d7904d | 359 | sc->ani.checkani_timer = timestamp; |
ff37e337 S |
360 | } |
361 | ||
362 | /* Skip all processing if there's nothing to do. */ | |
363 | if (longcal || shortcal || aniflag) { | |
364 | /* Call ANI routine if necessary */ | |
365 | if (aniflag) | |
20977d3e | 366 | ath9k_hw_ani_monitor(ah, &sc->nodestats, ah->curchan); |
ff37e337 S |
367 | |
368 | /* Perform calibration if necessary */ | |
369 | if (longcal || shortcal) { | |
379f0440 S |
370 | sc->ani.caldone = ath9k_hw_calibrate(ah, ah->curchan, |
371 | sc->rx_chainmask, longcal); | |
372 | ||
373 | if (longcal) | |
374 | sc->ani.noise_floor = ath9k_hw_getchan_noise(ah, | |
375 | ah->curchan); | |
376 | ||
377 | DPRINTF(sc, ATH_DBG_ANI," calibrate chan %u/%x nf: %d\n", | |
378 | ah->curchan->channel, ah->curchan->channelFlags, | |
379 | sc->ani.noise_floor); | |
ff37e337 S |
380 | } |
381 | } | |
382 | ||
20977d3e | 383 | set_timer: |
ff37e337 S |
384 | /* |
385 | * Set timer interval based on previous results. | |
386 | * The interval must be the shortest necessary to satisfy ANI, | |
387 | * short calibration and long calibration. | |
388 | */ | |
aac9207e | 389 | cal_interval = ATH_LONG_CALINTERVAL; |
2660b81a | 390 | if (sc->sc_ah->config.enable_ani) |
aac9207e | 391 | cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL); |
17d7904d | 392 | if (!sc->ani.caldone) |
20977d3e | 393 | cal_interval = min(cal_interval, (u32)short_cal_interval); |
ff37e337 | 394 | |
17d7904d | 395 | mod_timer(&sc->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); |
ff37e337 S |
396 | } |
397 | ||
415f738e S |
398 | static void ath_start_ani(struct ath_softc *sc) |
399 | { | |
400 | unsigned long timestamp = jiffies_to_msecs(jiffies); | |
401 | ||
402 | sc->ani.longcal_timer = timestamp; | |
403 | sc->ani.shortcal_timer = timestamp; | |
404 | sc->ani.checkani_timer = timestamp; | |
405 | ||
406 | mod_timer(&sc->ani.timer, | |
407 | jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); | |
408 | } | |
409 | ||
ff37e337 S |
410 | /* |
411 | * Update tx/rx chainmask. For legacy association, | |
412 | * hard code chainmask to 1x1, for 11n association, use | |
c97c92d9 VT |
413 | * the chainmask configuration, for bt coexistence, use |
414 | * the chainmask configuration even in legacy mode. | |
ff37e337 | 415 | */ |
0e2dedf9 | 416 | void ath_update_chainmask(struct ath_softc *sc, int is_ht) |
ff37e337 | 417 | { |
c97c92d9 | 418 | if (is_ht || |
2660b81a S |
419 | (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX)) { |
420 | sc->tx_chainmask = sc->sc_ah->caps.tx_chainmask; | |
421 | sc->rx_chainmask = sc->sc_ah->caps.rx_chainmask; | |
ff37e337 | 422 | } else { |
17d7904d S |
423 | sc->tx_chainmask = 1; |
424 | sc->rx_chainmask = 1; | |
ff37e337 S |
425 | } |
426 | ||
04bd4638 | 427 | DPRINTF(sc, ATH_DBG_CONFIG, "tx chmask: %d, rx chmask: %d\n", |
17d7904d | 428 | sc->tx_chainmask, sc->rx_chainmask); |
ff37e337 S |
429 | } |
430 | ||
431 | static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) | |
432 | { | |
433 | struct ath_node *an; | |
434 | ||
435 | an = (struct ath_node *)sta->drv_priv; | |
436 | ||
87792efc | 437 | if (sc->sc_flags & SC_OP_TXAGGR) { |
ff37e337 | 438 | ath_tx_node_init(sc, an); |
87792efc S |
439 | an->maxampdu = 1 << (IEEE80211_HTCAP_MAXRXAMPDU_FACTOR + |
440 | sta->ht_cap.ampdu_factor); | |
441 | an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density); | |
442 | } | |
ff37e337 S |
443 | } |
444 | ||
445 | static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) | |
446 | { | |
447 | struct ath_node *an = (struct ath_node *)sta->drv_priv; | |
448 | ||
449 | if (sc->sc_flags & SC_OP_TXAGGR) | |
450 | ath_tx_node_cleanup(sc, an); | |
451 | } | |
452 | ||
453 | static void ath9k_tasklet(unsigned long data) | |
454 | { | |
455 | struct ath_softc *sc = (struct ath_softc *)data; | |
17d7904d | 456 | u32 status = sc->intrstatus; |
ff37e337 | 457 | |
153e080d VT |
458 | ath9k_ps_wakeup(sc); |
459 | ||
ff37e337 | 460 | if (status & ATH9K_INT_FATAL) { |
ff37e337 | 461 | ath_reset(sc, false); |
153e080d | 462 | ath9k_ps_restore(sc); |
ff37e337 | 463 | return; |
063d8be3 | 464 | } |
ff37e337 | 465 | |
063d8be3 S |
466 | if (status & (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN)) { |
467 | spin_lock_bh(&sc->rx.rxflushlock); | |
468 | ath_rx_tasklet(sc, 0); | |
469 | spin_unlock_bh(&sc->rx.rxflushlock); | |
ff37e337 S |
470 | } |
471 | ||
063d8be3 S |
472 | if (status & ATH9K_INT_TX) |
473 | ath_tx_tasklet(sc); | |
474 | ||
ff37e337 | 475 | /* re-enable hardware interrupt */ |
17d7904d | 476 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
153e080d | 477 | ath9k_ps_restore(sc); |
ff37e337 S |
478 | } |
479 | ||
6baff7f9 | 480 | irqreturn_t ath_isr(int irq, void *dev) |
ff37e337 | 481 | { |
063d8be3 S |
482 | #define SCHED_INTR ( \ |
483 | ATH9K_INT_FATAL | \ | |
484 | ATH9K_INT_RXORN | \ | |
485 | ATH9K_INT_RXEOL | \ | |
486 | ATH9K_INT_RX | \ | |
487 | ATH9K_INT_TX | \ | |
488 | ATH9K_INT_BMISS | \ | |
489 | ATH9K_INT_CST | \ | |
490 | ATH9K_INT_TSFOOR) | |
491 | ||
ff37e337 | 492 | struct ath_softc *sc = dev; |
cbe61d8a | 493 | struct ath_hw *ah = sc->sc_ah; |
ff37e337 S |
494 | enum ath9k_int status; |
495 | bool sched = false; | |
496 | ||
063d8be3 S |
497 | /* |
498 | * The hardware is not ready/present, don't | |
499 | * touch anything. Note this can happen early | |
500 | * on if the IRQ is shared. | |
501 | */ | |
502 | if (sc->sc_flags & SC_OP_INVALID) | |
503 | return IRQ_NONE; | |
ff37e337 | 504 | |
063d8be3 S |
505 | |
506 | /* shared irq, not for us */ | |
507 | ||
153e080d | 508 | if (!ath9k_hw_intrpend(ah)) |
063d8be3 | 509 | return IRQ_NONE; |
063d8be3 S |
510 | |
511 | /* | |
512 | * Figure out the reason(s) for the interrupt. Note | |
513 | * that the hal returns a pseudo-ISR that may include | |
514 | * bits we haven't explicitly enabled so we mask the | |
515 | * value to insure we only process bits we requested. | |
516 | */ | |
517 | ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ | |
518 | status &= sc->imask; /* discard unasked-for bits */ | |
ff37e337 | 519 | |
063d8be3 S |
520 | /* |
521 | * If there are no status bits set, then this interrupt was not | |
522 | * for me (should have been caught above). | |
523 | */ | |
153e080d | 524 | if (!status) |
063d8be3 | 525 | return IRQ_NONE; |
ff37e337 | 526 | |
063d8be3 S |
527 | /* Cache the status */ |
528 | sc->intrstatus = status; | |
529 | ||
530 | if (status & SCHED_INTR) | |
531 | sched = true; | |
532 | ||
533 | /* | |
534 | * If a FATAL or RXORN interrupt is received, we have to reset the | |
535 | * chip immediately. | |
536 | */ | |
537 | if (status & (ATH9K_INT_FATAL | ATH9K_INT_RXORN)) | |
538 | goto chip_reset; | |
539 | ||
540 | if (status & ATH9K_INT_SWBA) | |
541 | tasklet_schedule(&sc->bcon_tasklet); | |
542 | ||
543 | if (status & ATH9K_INT_TXURN) | |
544 | ath9k_hw_updatetxtriglevel(ah, true); | |
545 | ||
546 | if (status & ATH9K_INT_MIB) { | |
ff37e337 | 547 | /* |
063d8be3 S |
548 | * Disable interrupts until we service the MIB |
549 | * interrupt; otherwise it will continue to | |
550 | * fire. | |
ff37e337 | 551 | */ |
063d8be3 S |
552 | ath9k_hw_set_interrupts(ah, 0); |
553 | /* | |
554 | * Let the hal handle the event. We assume | |
555 | * it will clear whatever condition caused | |
556 | * the interrupt. | |
557 | */ | |
558 | ath9k_hw_procmibevent(ah, &sc->nodestats); | |
559 | ath9k_hw_set_interrupts(ah, sc->imask); | |
560 | } | |
ff37e337 | 561 | |
153e080d VT |
562 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
563 | if (status & ATH9K_INT_TIM_TIMER) { | |
063d8be3 S |
564 | /* Clear RxAbort bit so that we can |
565 | * receive frames */ | |
566 | ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); | |
153e080d | 567 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
063d8be3 | 568 | sc->sc_flags |= SC_OP_WAIT_FOR_BEACON; |
ff37e337 | 569 | } |
063d8be3 S |
570 | |
571 | chip_reset: | |
ff37e337 | 572 | |
817e11de S |
573 | ath_debug_stat_interrupt(sc, status); |
574 | ||
ff37e337 S |
575 | if (sched) { |
576 | /* turn off every interrupt except SWBA */ | |
17d7904d | 577 | ath9k_hw_set_interrupts(ah, (sc->imask & ATH9K_INT_SWBA)); |
ff37e337 S |
578 | tasklet_schedule(&sc->intr_tq); |
579 | } | |
580 | ||
581 | return IRQ_HANDLED; | |
063d8be3 S |
582 | |
583 | #undef SCHED_INTR | |
ff37e337 S |
584 | } |
585 | ||
f078f209 | 586 | static u32 ath_get_extchanmode(struct ath_softc *sc, |
99405f93 | 587 | struct ieee80211_channel *chan, |
094d05dc | 588 | enum nl80211_channel_type channel_type) |
f078f209 LR |
589 | { |
590 | u32 chanmode = 0; | |
f078f209 LR |
591 | |
592 | switch (chan->band) { | |
593 | case IEEE80211_BAND_2GHZ: | |
094d05dc S |
594 | switch(channel_type) { |
595 | case NL80211_CHAN_NO_HT: | |
596 | case NL80211_CHAN_HT20: | |
f078f209 | 597 | chanmode = CHANNEL_G_HT20; |
094d05dc S |
598 | break; |
599 | case NL80211_CHAN_HT40PLUS: | |
f078f209 | 600 | chanmode = CHANNEL_G_HT40PLUS; |
094d05dc S |
601 | break; |
602 | case NL80211_CHAN_HT40MINUS: | |
f078f209 | 603 | chanmode = CHANNEL_G_HT40MINUS; |
094d05dc S |
604 | break; |
605 | } | |
f078f209 LR |
606 | break; |
607 | case IEEE80211_BAND_5GHZ: | |
094d05dc S |
608 | switch(channel_type) { |
609 | case NL80211_CHAN_NO_HT: | |
610 | case NL80211_CHAN_HT20: | |
f078f209 | 611 | chanmode = CHANNEL_A_HT20; |
094d05dc S |
612 | break; |
613 | case NL80211_CHAN_HT40PLUS: | |
f078f209 | 614 | chanmode = CHANNEL_A_HT40PLUS; |
094d05dc S |
615 | break; |
616 | case NL80211_CHAN_HT40MINUS: | |
f078f209 | 617 | chanmode = CHANNEL_A_HT40MINUS; |
094d05dc S |
618 | break; |
619 | } | |
f078f209 LR |
620 | break; |
621 | default: | |
622 | break; | |
623 | } | |
624 | ||
625 | return chanmode; | |
626 | } | |
627 | ||
6ace2891 | 628 | static int ath_setkey_tkip(struct ath_softc *sc, u16 keyix, const u8 *key, |
3f53dd64 JM |
629 | struct ath9k_keyval *hk, const u8 *addr, |
630 | bool authenticator) | |
f078f209 | 631 | { |
6ace2891 JM |
632 | const u8 *key_rxmic; |
633 | const u8 *key_txmic; | |
f078f209 | 634 | |
6ace2891 JM |
635 | key_txmic = key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY; |
636 | key_rxmic = key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY; | |
f078f209 LR |
637 | |
638 | if (addr == NULL) { | |
d216aaa6 JM |
639 | /* |
640 | * Group key installation - only two key cache entries are used | |
641 | * regardless of splitmic capability since group key is only | |
642 | * used either for TX or RX. | |
643 | */ | |
3f53dd64 JM |
644 | if (authenticator) { |
645 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); | |
646 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_mic)); | |
647 | } else { | |
648 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); | |
649 | memcpy(hk->kv_txmic, key_rxmic, sizeof(hk->kv_mic)); | |
650 | } | |
d216aaa6 | 651 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr); |
f078f209 | 652 | } |
17d7904d | 653 | if (!sc->splitmic) { |
d216aaa6 | 654 | /* TX and RX keys share the same key cache entry. */ |
f078f209 LR |
655 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); |
656 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic)); | |
d216aaa6 | 657 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr); |
f078f209 | 658 | } |
d216aaa6 JM |
659 | |
660 | /* Separate key cache entries for TX and RX */ | |
661 | ||
662 | /* TX key goes at first index, RX key at +32. */ | |
f078f209 | 663 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); |
d216aaa6 JM |
664 | if (!ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, NULL)) { |
665 | /* TX MIC entry failed. No need to proceed further */ | |
d8baa939 | 666 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 667 | "Setting TX MIC Key Failed\n"); |
f078f209 LR |
668 | return 0; |
669 | } | |
670 | ||
671 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); | |
672 | /* XXX delete tx key on failure? */ | |
d216aaa6 | 673 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix + 32, hk, addr); |
6ace2891 JM |
674 | } |
675 | ||
676 | static int ath_reserve_key_cache_slot_tkip(struct ath_softc *sc) | |
677 | { | |
678 | int i; | |
679 | ||
17d7904d S |
680 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { |
681 | if (test_bit(i, sc->keymap) || | |
682 | test_bit(i + 64, sc->keymap)) | |
6ace2891 | 683 | continue; /* At least one part of TKIP key allocated */ |
17d7904d S |
684 | if (sc->splitmic && |
685 | (test_bit(i + 32, sc->keymap) || | |
686 | test_bit(i + 64 + 32, sc->keymap))) | |
6ace2891 JM |
687 | continue; /* At least one part of TKIP key allocated */ |
688 | ||
689 | /* Found a free slot for a TKIP key */ | |
690 | return i; | |
691 | } | |
692 | return -1; | |
693 | } | |
694 | ||
695 | static int ath_reserve_key_cache_slot(struct ath_softc *sc) | |
696 | { | |
697 | int i; | |
698 | ||
699 | /* First, try to find slots that would not be available for TKIP. */ | |
17d7904d S |
700 | if (sc->splitmic) { |
701 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 4; i++) { | |
702 | if (!test_bit(i, sc->keymap) && | |
703 | (test_bit(i + 32, sc->keymap) || | |
704 | test_bit(i + 64, sc->keymap) || | |
705 | test_bit(i + 64 + 32, sc->keymap))) | |
6ace2891 | 706 | return i; |
17d7904d S |
707 | if (!test_bit(i + 32, sc->keymap) && |
708 | (test_bit(i, sc->keymap) || | |
709 | test_bit(i + 64, sc->keymap) || | |
710 | test_bit(i + 64 + 32, sc->keymap))) | |
6ace2891 | 711 | return i + 32; |
17d7904d S |
712 | if (!test_bit(i + 64, sc->keymap) && |
713 | (test_bit(i , sc->keymap) || | |
714 | test_bit(i + 32, sc->keymap) || | |
715 | test_bit(i + 64 + 32, sc->keymap))) | |
ea612132 | 716 | return i + 64; |
17d7904d S |
717 | if (!test_bit(i + 64 + 32, sc->keymap) && |
718 | (test_bit(i, sc->keymap) || | |
719 | test_bit(i + 32, sc->keymap) || | |
720 | test_bit(i + 64, sc->keymap))) | |
ea612132 | 721 | return i + 64 + 32; |
6ace2891 JM |
722 | } |
723 | } else { | |
17d7904d S |
724 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { |
725 | if (!test_bit(i, sc->keymap) && | |
726 | test_bit(i + 64, sc->keymap)) | |
6ace2891 | 727 | return i; |
17d7904d S |
728 | if (test_bit(i, sc->keymap) && |
729 | !test_bit(i + 64, sc->keymap)) | |
6ace2891 JM |
730 | return i + 64; |
731 | } | |
732 | } | |
733 | ||
734 | /* No partially used TKIP slots, pick any available slot */ | |
17d7904d | 735 | for (i = IEEE80211_WEP_NKID; i < sc->keymax; i++) { |
be2864cf JM |
736 | /* Do not allow slots that could be needed for TKIP group keys |
737 | * to be used. This limitation could be removed if we know that | |
738 | * TKIP will not be used. */ | |
739 | if (i >= 64 && i < 64 + IEEE80211_WEP_NKID) | |
740 | continue; | |
17d7904d | 741 | if (sc->splitmic) { |
be2864cf JM |
742 | if (i >= 32 && i < 32 + IEEE80211_WEP_NKID) |
743 | continue; | |
744 | if (i >= 64 + 32 && i < 64 + 32 + IEEE80211_WEP_NKID) | |
745 | continue; | |
746 | } | |
747 | ||
17d7904d | 748 | if (!test_bit(i, sc->keymap)) |
6ace2891 JM |
749 | return i; /* Found a free slot for a key */ |
750 | } | |
751 | ||
752 | /* No free slot found */ | |
753 | return -1; | |
f078f209 LR |
754 | } |
755 | ||
756 | static int ath_key_config(struct ath_softc *sc, | |
3f53dd64 | 757 | struct ieee80211_vif *vif, |
dc822b5d | 758 | struct ieee80211_sta *sta, |
f078f209 LR |
759 | struct ieee80211_key_conf *key) |
760 | { | |
f078f209 LR |
761 | struct ath9k_keyval hk; |
762 | const u8 *mac = NULL; | |
763 | int ret = 0; | |
6ace2891 | 764 | int idx; |
f078f209 LR |
765 | |
766 | memset(&hk, 0, sizeof(hk)); | |
767 | ||
768 | switch (key->alg) { | |
769 | case ALG_WEP: | |
770 | hk.kv_type = ATH9K_CIPHER_WEP; | |
771 | break; | |
772 | case ALG_TKIP: | |
773 | hk.kv_type = ATH9K_CIPHER_TKIP; | |
774 | break; | |
775 | case ALG_CCMP: | |
776 | hk.kv_type = ATH9K_CIPHER_AES_CCM; | |
777 | break; | |
778 | default: | |
ca470b29 | 779 | return -EOPNOTSUPP; |
f078f209 LR |
780 | } |
781 | ||
6ace2891 | 782 | hk.kv_len = key->keylen; |
f078f209 LR |
783 | memcpy(hk.kv_val, key->key, key->keylen); |
784 | ||
6ace2891 JM |
785 | if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { |
786 | /* For now, use the default keys for broadcast keys. This may | |
787 | * need to change with virtual interfaces. */ | |
788 | idx = key->keyidx; | |
789 | } else if (key->keyidx) { | |
dc822b5d JB |
790 | if (WARN_ON(!sta)) |
791 | return -EOPNOTSUPP; | |
792 | mac = sta->addr; | |
793 | ||
6ace2891 JM |
794 | if (vif->type != NL80211_IFTYPE_AP) { |
795 | /* Only keyidx 0 should be used with unicast key, but | |
796 | * allow this for client mode for now. */ | |
797 | idx = key->keyidx; | |
798 | } else | |
799 | return -EIO; | |
f078f209 | 800 | } else { |
dc822b5d JB |
801 | if (WARN_ON(!sta)) |
802 | return -EOPNOTSUPP; | |
803 | mac = sta->addr; | |
804 | ||
6ace2891 JM |
805 | if (key->alg == ALG_TKIP) |
806 | idx = ath_reserve_key_cache_slot_tkip(sc); | |
807 | else | |
808 | idx = ath_reserve_key_cache_slot(sc); | |
809 | if (idx < 0) | |
ca470b29 | 810 | return -ENOSPC; /* no free key cache entries */ |
f078f209 LR |
811 | } |
812 | ||
813 | if (key->alg == ALG_TKIP) | |
3f53dd64 JM |
814 | ret = ath_setkey_tkip(sc, idx, key->key, &hk, mac, |
815 | vif->type == NL80211_IFTYPE_AP); | |
f078f209 | 816 | else |
d216aaa6 | 817 | ret = ath9k_hw_set_keycache_entry(sc->sc_ah, idx, &hk, mac); |
f078f209 LR |
818 | |
819 | if (!ret) | |
820 | return -EIO; | |
821 | ||
17d7904d | 822 | set_bit(idx, sc->keymap); |
6ace2891 | 823 | if (key->alg == ALG_TKIP) { |
17d7904d S |
824 | set_bit(idx + 64, sc->keymap); |
825 | if (sc->splitmic) { | |
826 | set_bit(idx + 32, sc->keymap); | |
827 | set_bit(idx + 64 + 32, sc->keymap); | |
6ace2891 JM |
828 | } |
829 | } | |
830 | ||
831 | return idx; | |
f078f209 LR |
832 | } |
833 | ||
834 | static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key) | |
835 | { | |
6ace2891 JM |
836 | ath9k_hw_keyreset(sc->sc_ah, key->hw_key_idx); |
837 | if (key->hw_key_idx < IEEE80211_WEP_NKID) | |
838 | return; | |
839 | ||
17d7904d | 840 | clear_bit(key->hw_key_idx, sc->keymap); |
6ace2891 JM |
841 | if (key->alg != ALG_TKIP) |
842 | return; | |
f078f209 | 843 | |
17d7904d S |
844 | clear_bit(key->hw_key_idx + 64, sc->keymap); |
845 | if (sc->splitmic) { | |
846 | clear_bit(key->hw_key_idx + 32, sc->keymap); | |
847 | clear_bit(key->hw_key_idx + 64 + 32, sc->keymap); | |
6ace2891 | 848 | } |
f078f209 LR |
849 | } |
850 | ||
eb2599ca S |
851 | static void setup_ht_cap(struct ath_softc *sc, |
852 | struct ieee80211_sta_ht_cap *ht_info) | |
f078f209 | 853 | { |
60653678 S |
854 | #define ATH9K_HT_CAP_MAXRXAMPDU_65536 0x3 /* 2 ^ 16 */ |
855 | #define ATH9K_HT_CAP_MPDUDENSITY_8 0x6 /* 8 usec */ | |
f078f209 | 856 | |
d9fe60de JB |
857 | ht_info->ht_supported = true; |
858 | ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
859 | IEEE80211_HT_CAP_SM_PS | | |
860 | IEEE80211_HT_CAP_SGI_40 | | |
861 | IEEE80211_HT_CAP_DSSSCCK40; | |
f078f209 | 862 | |
60653678 S |
863 | ht_info->ampdu_factor = ATH9K_HT_CAP_MAXRXAMPDU_65536; |
864 | ht_info->ampdu_density = ATH9K_HT_CAP_MPDUDENSITY_8; | |
eb2599ca | 865 | |
d9fe60de JB |
866 | /* set up supported mcs set */ |
867 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); | |
eb2599ca | 868 | |
17d7904d | 869 | switch(sc->rx_chainmask) { |
eb2599ca S |
870 | case 1: |
871 | ht_info->mcs.rx_mask[0] = 0xff; | |
872 | break; | |
3c457265 | 873 | case 3: |
eb2599ca S |
874 | case 5: |
875 | case 7: | |
876 | default: | |
877 | ht_info->mcs.rx_mask[0] = 0xff; | |
878 | ht_info->mcs.rx_mask[1] = 0xff; | |
879 | break; | |
880 | } | |
881 | ||
d9fe60de | 882 | ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; |
f078f209 LR |
883 | } |
884 | ||
8feceb67 | 885 | static void ath9k_bss_assoc_info(struct ath_softc *sc, |
5640b08e | 886 | struct ieee80211_vif *vif, |
8feceb67 | 887 | struct ieee80211_bss_conf *bss_conf) |
f078f209 | 888 | { |
17d7904d | 889 | struct ath_vif *avp = (void *)vif->drv_priv; |
f078f209 | 890 | |
8feceb67 | 891 | if (bss_conf->assoc) { |
094d05dc | 892 | DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n", |
17d7904d | 893 | bss_conf->aid, sc->curbssid); |
f078f209 | 894 | |
8feceb67 | 895 | /* New association, store aid */ |
d97809db | 896 | if (avp->av_opmode == NL80211_IFTYPE_STATION) { |
17d7904d | 897 | sc->curaid = bss_conf->aid; |
ba52da58 | 898 | ath9k_hw_write_associd(sc); |
8feceb67 | 899 | } |
f078f209 | 900 | |
8feceb67 | 901 | /* Configure the beacon */ |
2c3db3d5 | 902 | ath_beacon_config(sc, vif); |
f078f209 | 903 | |
8feceb67 | 904 | /* Reset rssi stats */ |
17d7904d S |
905 | sc->nodestats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER; |
906 | sc->nodestats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER; | |
907 | sc->nodestats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER; | |
908 | sc->nodestats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER; | |
f078f209 | 909 | |
415f738e | 910 | ath_start_ani(sc); |
8feceb67 | 911 | } else { |
1ffb0610 | 912 | DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info DISASSOC\n"); |
17d7904d | 913 | sc->curaid = 0; |
f078f209 | 914 | } |
8feceb67 | 915 | } |
f078f209 | 916 | |
8feceb67 VT |
917 | /********************************/ |
918 | /* LED functions */ | |
919 | /********************************/ | |
f078f209 | 920 | |
f2bffa7e VT |
921 | static void ath_led_blink_work(struct work_struct *work) |
922 | { | |
923 | struct ath_softc *sc = container_of(work, struct ath_softc, | |
924 | ath_led_blink_work.work); | |
925 | ||
926 | if (!(sc->sc_flags & SC_OP_LED_ASSOCIATED)) | |
927 | return; | |
85067c06 VT |
928 | |
929 | if ((sc->led_on_duration == ATH_LED_ON_DURATION_IDLE) || | |
930 | (sc->led_off_duration == ATH_LED_OFF_DURATION_IDLE)) | |
931 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0); | |
932 | else | |
933 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, | |
934 | (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0); | |
f2bffa7e VT |
935 | |
936 | queue_delayed_work(sc->hw->workqueue, &sc->ath_led_blink_work, | |
937 | (sc->sc_flags & SC_OP_LED_ON) ? | |
938 | msecs_to_jiffies(sc->led_off_duration) : | |
939 | msecs_to_jiffies(sc->led_on_duration)); | |
940 | ||
85067c06 VT |
941 | sc->led_on_duration = sc->led_on_cnt ? |
942 | max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25) : | |
943 | ATH_LED_ON_DURATION_IDLE; | |
944 | sc->led_off_duration = sc->led_off_cnt ? | |
945 | max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10) : | |
946 | ATH_LED_OFF_DURATION_IDLE; | |
f2bffa7e VT |
947 | sc->led_on_cnt = sc->led_off_cnt = 0; |
948 | if (sc->sc_flags & SC_OP_LED_ON) | |
949 | sc->sc_flags &= ~SC_OP_LED_ON; | |
950 | else | |
951 | sc->sc_flags |= SC_OP_LED_ON; | |
952 | } | |
953 | ||
8feceb67 VT |
954 | static void ath_led_brightness(struct led_classdev *led_cdev, |
955 | enum led_brightness brightness) | |
956 | { | |
957 | struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev); | |
958 | struct ath_softc *sc = led->sc; | |
f078f209 | 959 | |
8feceb67 VT |
960 | switch (brightness) { |
961 | case LED_OFF: | |
962 | if (led->led_type == ATH_LED_ASSOC || | |
f2bffa7e VT |
963 | led->led_type == ATH_LED_RADIO) { |
964 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, | |
965 | (led->led_type == ATH_LED_RADIO)); | |
8feceb67 | 966 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; |
f2bffa7e VT |
967 | if (led->led_type == ATH_LED_RADIO) |
968 | sc->sc_flags &= ~SC_OP_LED_ON; | |
969 | } else { | |
970 | sc->led_off_cnt++; | |
971 | } | |
8feceb67 VT |
972 | break; |
973 | case LED_FULL: | |
f2bffa7e | 974 | if (led->led_type == ATH_LED_ASSOC) { |
8feceb67 | 975 | sc->sc_flags |= SC_OP_LED_ASSOCIATED; |
f2bffa7e VT |
976 | queue_delayed_work(sc->hw->workqueue, |
977 | &sc->ath_led_blink_work, 0); | |
978 | } else if (led->led_type == ATH_LED_RADIO) { | |
979 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0); | |
980 | sc->sc_flags |= SC_OP_LED_ON; | |
981 | } else { | |
982 | sc->led_on_cnt++; | |
983 | } | |
8feceb67 VT |
984 | break; |
985 | default: | |
986 | break; | |
f078f209 | 987 | } |
8feceb67 | 988 | } |
f078f209 | 989 | |
8feceb67 VT |
990 | static int ath_register_led(struct ath_softc *sc, struct ath_led *led, |
991 | char *trigger) | |
992 | { | |
993 | int ret; | |
f078f209 | 994 | |
8feceb67 VT |
995 | led->sc = sc; |
996 | led->led_cdev.name = led->name; | |
997 | led->led_cdev.default_trigger = trigger; | |
998 | led->led_cdev.brightness_set = ath_led_brightness; | |
f078f209 | 999 | |
8feceb67 VT |
1000 | ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev); |
1001 | if (ret) | |
1002 | DPRINTF(sc, ATH_DBG_FATAL, | |
1003 | "Failed to register led:%s", led->name); | |
1004 | else | |
1005 | led->registered = 1; | |
1006 | return ret; | |
1007 | } | |
f078f209 | 1008 | |
8feceb67 VT |
1009 | static void ath_unregister_led(struct ath_led *led) |
1010 | { | |
1011 | if (led->registered) { | |
1012 | led_classdev_unregister(&led->led_cdev); | |
1013 | led->registered = 0; | |
f078f209 | 1014 | } |
f078f209 LR |
1015 | } |
1016 | ||
8feceb67 | 1017 | static void ath_deinit_leds(struct ath_softc *sc) |
f078f209 | 1018 | { |
f2bffa7e | 1019 | cancel_delayed_work_sync(&sc->ath_led_blink_work); |
8feceb67 VT |
1020 | ath_unregister_led(&sc->assoc_led); |
1021 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; | |
1022 | ath_unregister_led(&sc->tx_led); | |
1023 | ath_unregister_led(&sc->rx_led); | |
1024 | ath_unregister_led(&sc->radio_led); | |
1025 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); | |
1026 | } | |
f078f209 | 1027 | |
8feceb67 VT |
1028 | static void ath_init_leds(struct ath_softc *sc) |
1029 | { | |
1030 | char *trigger; | |
1031 | int ret; | |
f078f209 | 1032 | |
8feceb67 VT |
1033 | /* Configure gpio 1 for output */ |
1034 | ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN, | |
1035 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | |
1036 | /* LED off, active low */ | |
1037 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); | |
7dcfdcd9 | 1038 | |
f2bffa7e VT |
1039 | INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work); |
1040 | ||
8feceb67 VT |
1041 | trigger = ieee80211_get_radio_led_name(sc->hw); |
1042 | snprintf(sc->radio_led.name, sizeof(sc->radio_led.name), | |
0818cb8a | 1043 | "ath9k-%s::radio", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1044 | ret = ath_register_led(sc, &sc->radio_led, trigger); |
1045 | sc->radio_led.led_type = ATH_LED_RADIO; | |
1046 | if (ret) | |
1047 | goto fail; | |
7dcfdcd9 | 1048 | |
8feceb67 VT |
1049 | trigger = ieee80211_get_assoc_led_name(sc->hw); |
1050 | snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name), | |
0818cb8a | 1051 | "ath9k-%s::assoc", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1052 | ret = ath_register_led(sc, &sc->assoc_led, trigger); |
1053 | sc->assoc_led.led_type = ATH_LED_ASSOC; | |
1054 | if (ret) | |
1055 | goto fail; | |
f078f209 | 1056 | |
8feceb67 VT |
1057 | trigger = ieee80211_get_tx_led_name(sc->hw); |
1058 | snprintf(sc->tx_led.name, sizeof(sc->tx_led.name), | |
0818cb8a | 1059 | "ath9k-%s::tx", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1060 | ret = ath_register_led(sc, &sc->tx_led, trigger); |
1061 | sc->tx_led.led_type = ATH_LED_TX; | |
1062 | if (ret) | |
1063 | goto fail; | |
f078f209 | 1064 | |
8feceb67 VT |
1065 | trigger = ieee80211_get_rx_led_name(sc->hw); |
1066 | snprintf(sc->rx_led.name, sizeof(sc->rx_led.name), | |
0818cb8a | 1067 | "ath9k-%s::rx", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1068 | ret = ath_register_led(sc, &sc->rx_led, trigger); |
1069 | sc->rx_led.led_type = ATH_LED_RX; | |
1070 | if (ret) | |
1071 | goto fail; | |
f078f209 | 1072 | |
8feceb67 VT |
1073 | return; |
1074 | ||
1075 | fail: | |
1076 | ath_deinit_leds(sc); | |
f078f209 LR |
1077 | } |
1078 | ||
7ec3e514 | 1079 | void ath_radio_enable(struct ath_softc *sc) |
500c064d | 1080 | { |
cbe61d8a | 1081 | struct ath_hw *ah = sc->sc_ah; |
ae8d2858 LR |
1082 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
1083 | int r; | |
500c064d | 1084 | |
3cbb5dd7 | 1085 | ath9k_ps_wakeup(sc); |
d2f5b3a6 | 1086 | ath9k_hw_configpcipowersave(ah, 0); |
ae8d2858 | 1087 | |
d2f5b3a6 | 1088 | spin_lock_bh(&sc->sc_resetlock); |
2660b81a | 1089 | r = ath9k_hw_reset(ah, ah->curchan, false); |
ae8d2858 | 1090 | if (r) { |
500c064d | 1091 | DPRINTF(sc, ATH_DBG_FATAL, |
ae8d2858 | 1092 | "Unable to reset channel %u (%uMhz) ", |
6b45784f | 1093 | "reset status %d\n", |
ae8d2858 | 1094 | channel->center_freq, r); |
500c064d VT |
1095 | } |
1096 | spin_unlock_bh(&sc->sc_resetlock); | |
1097 | ||
1098 | ath_update_txpow(sc); | |
1099 | if (ath_startrecv(sc) != 0) { | |
1100 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1101 | "Unable to restart recv logic\n"); |
500c064d VT |
1102 | return; |
1103 | } | |
1104 | ||
1105 | if (sc->sc_flags & SC_OP_BEACONS) | |
2c3db3d5 | 1106 | ath_beacon_config(sc, NULL); /* restart beacons */ |
500c064d VT |
1107 | |
1108 | /* Re-Enable interrupts */ | |
17d7904d | 1109 | ath9k_hw_set_interrupts(ah, sc->imask); |
500c064d VT |
1110 | |
1111 | /* Enable LED */ | |
1112 | ath9k_hw_cfg_output(ah, ATH_LED_PIN, | |
1113 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | |
1114 | ath9k_hw_set_gpio(ah, ATH_LED_PIN, 0); | |
1115 | ||
1116 | ieee80211_wake_queues(sc->hw); | |
3cbb5dd7 | 1117 | ath9k_ps_restore(sc); |
500c064d VT |
1118 | } |
1119 | ||
7ec3e514 | 1120 | void ath_radio_disable(struct ath_softc *sc) |
500c064d | 1121 | { |
cbe61d8a | 1122 | struct ath_hw *ah = sc->sc_ah; |
ae8d2858 LR |
1123 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
1124 | int r; | |
500c064d | 1125 | |
3cbb5dd7 | 1126 | ath9k_ps_wakeup(sc); |
500c064d VT |
1127 | ieee80211_stop_queues(sc->hw); |
1128 | ||
1129 | /* Disable LED */ | |
1130 | ath9k_hw_set_gpio(ah, ATH_LED_PIN, 1); | |
1131 | ath9k_hw_cfg_gpio_input(ah, ATH_LED_PIN); | |
1132 | ||
1133 | /* Disable interrupts */ | |
1134 | ath9k_hw_set_interrupts(ah, 0); | |
1135 | ||
043a0405 | 1136 | ath_drain_all_txq(sc, false); /* clear pending tx frames */ |
500c064d VT |
1137 | ath_stoprecv(sc); /* turn off frame recv */ |
1138 | ath_flushrecv(sc); /* flush recv queue */ | |
1139 | ||
1140 | spin_lock_bh(&sc->sc_resetlock); | |
2660b81a | 1141 | r = ath9k_hw_reset(ah, ah->curchan, false); |
ae8d2858 | 1142 | if (r) { |
500c064d | 1143 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 1144 | "Unable to reset channel %u (%uMhz) " |
6b45784f | 1145 | "reset status %d\n", |
ae8d2858 | 1146 | channel->center_freq, r); |
500c064d VT |
1147 | } |
1148 | spin_unlock_bh(&sc->sc_resetlock); | |
1149 | ||
1150 | ath9k_hw_phy_disable(ah); | |
d2f5b3a6 | 1151 | ath9k_hw_configpcipowersave(ah, 1); |
500c064d | 1152 | ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP); |
3cbb5dd7 | 1153 | ath9k_ps_restore(sc); |
500c064d VT |
1154 | } |
1155 | ||
5077fd35 GJ |
1156 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
1157 | ||
1158 | /*******************/ | |
1159 | /* Rfkill */ | |
1160 | /*******************/ | |
1161 | ||
500c064d VT |
1162 | static bool ath_is_rfkill_set(struct ath_softc *sc) |
1163 | { | |
cbe61d8a | 1164 | struct ath_hw *ah = sc->sc_ah; |
500c064d | 1165 | |
2660b81a S |
1166 | return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == |
1167 | ah->rfkill_polarity; | |
500c064d VT |
1168 | } |
1169 | ||
1170 | /* h/w rfkill poll function */ | |
1171 | static void ath_rfkill_poll(struct work_struct *work) | |
1172 | { | |
1173 | struct ath_softc *sc = container_of(work, struct ath_softc, | |
1174 | rf_kill.rfkill_poll.work); | |
1175 | bool radio_on; | |
1176 | ||
1177 | if (sc->sc_flags & SC_OP_INVALID) | |
1178 | return; | |
1179 | ||
1180 | radio_on = !ath_is_rfkill_set(sc); | |
1181 | ||
1182 | /* | |
1183 | * enable/disable radio only when there is a | |
1184 | * state change in RF switch | |
1185 | */ | |
1186 | if (radio_on == !!(sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED)) { | |
1187 | enum rfkill_state state; | |
1188 | ||
1189 | if (sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED) { | |
1190 | state = radio_on ? RFKILL_STATE_SOFT_BLOCKED | |
1191 | : RFKILL_STATE_HARD_BLOCKED; | |
1192 | } else if (radio_on) { | |
1193 | ath_radio_enable(sc); | |
1194 | state = RFKILL_STATE_UNBLOCKED; | |
1195 | } else { | |
1196 | ath_radio_disable(sc); | |
1197 | state = RFKILL_STATE_HARD_BLOCKED; | |
1198 | } | |
1199 | ||
1200 | if (state == RFKILL_STATE_HARD_BLOCKED) | |
1201 | sc->sc_flags |= SC_OP_RFKILL_HW_BLOCKED; | |
1202 | else | |
1203 | sc->sc_flags &= ~SC_OP_RFKILL_HW_BLOCKED; | |
1204 | ||
1205 | rfkill_force_state(sc->rf_kill.rfkill, state); | |
1206 | } | |
1207 | ||
1208 | queue_delayed_work(sc->hw->workqueue, &sc->rf_kill.rfkill_poll, | |
1209 | msecs_to_jiffies(ATH_RFKILL_POLL_INTERVAL)); | |
1210 | } | |
1211 | ||
1212 | /* s/w rfkill handler */ | |
1213 | static int ath_sw_toggle_radio(void *data, enum rfkill_state state) | |
1214 | { | |
1215 | struct ath_softc *sc = data; | |
1216 | ||
1217 | switch (state) { | |
1218 | case RFKILL_STATE_SOFT_BLOCKED: | |
1219 | if (!(sc->sc_flags & (SC_OP_RFKILL_HW_BLOCKED | | |
1220 | SC_OP_RFKILL_SW_BLOCKED))) | |
1221 | ath_radio_disable(sc); | |
1222 | sc->sc_flags |= SC_OP_RFKILL_SW_BLOCKED; | |
1223 | return 0; | |
1224 | case RFKILL_STATE_UNBLOCKED: | |
1225 | if ((sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED)) { | |
1226 | sc->sc_flags &= ~SC_OP_RFKILL_SW_BLOCKED; | |
1227 | if (sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED) { | |
1228 | DPRINTF(sc, ATH_DBG_FATAL, "Can't turn on the" | |
04bd4638 | 1229 | "radio as it is disabled by h/w\n"); |
500c064d VT |
1230 | return -EPERM; |
1231 | } | |
1232 | ath_radio_enable(sc); | |
1233 | } | |
1234 | return 0; | |
1235 | default: | |
1236 | return -EINVAL; | |
1237 | } | |
1238 | } | |
1239 | ||
1240 | /* Init s/w rfkill */ | |
1241 | static int ath_init_sw_rfkill(struct ath_softc *sc) | |
1242 | { | |
1243 | sc->rf_kill.rfkill = rfkill_allocate(wiphy_dev(sc->hw->wiphy), | |
1244 | RFKILL_TYPE_WLAN); | |
1245 | if (!sc->rf_kill.rfkill) { | |
1246 | DPRINTF(sc, ATH_DBG_FATAL, "Failed to allocate rfkill\n"); | |
1247 | return -ENOMEM; | |
1248 | } | |
1249 | ||
1250 | snprintf(sc->rf_kill.rfkill_name, sizeof(sc->rf_kill.rfkill_name), | |
0818cb8a | 1251 | "ath9k-%s::rfkill", wiphy_name(sc->hw->wiphy)); |
500c064d VT |
1252 | sc->rf_kill.rfkill->name = sc->rf_kill.rfkill_name; |
1253 | sc->rf_kill.rfkill->data = sc; | |
1254 | sc->rf_kill.rfkill->toggle_radio = ath_sw_toggle_radio; | |
1255 | sc->rf_kill.rfkill->state = RFKILL_STATE_UNBLOCKED; | |
500c064d VT |
1256 | |
1257 | return 0; | |
1258 | } | |
1259 | ||
1260 | /* Deinitialize rfkill */ | |
1261 | static void ath_deinit_rfkill(struct ath_softc *sc) | |
1262 | { | |
2660b81a | 1263 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
500c064d VT |
1264 | cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll); |
1265 | ||
1266 | if (sc->sc_flags & SC_OP_RFKILL_REGISTERED) { | |
1267 | rfkill_unregister(sc->rf_kill.rfkill); | |
1268 | sc->sc_flags &= ~SC_OP_RFKILL_REGISTERED; | |
1269 | sc->rf_kill.rfkill = NULL; | |
1270 | } | |
1271 | } | |
9c84b797 S |
1272 | |
1273 | static int ath_start_rfkill_poll(struct ath_softc *sc) | |
1274 | { | |
2660b81a | 1275 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
9c84b797 S |
1276 | queue_delayed_work(sc->hw->workqueue, |
1277 | &sc->rf_kill.rfkill_poll, 0); | |
1278 | ||
1279 | if (!(sc->sc_flags & SC_OP_RFKILL_REGISTERED)) { | |
1280 | if (rfkill_register(sc->rf_kill.rfkill)) { | |
1281 | DPRINTF(sc, ATH_DBG_FATAL, | |
1282 | "Unable to register rfkill\n"); | |
1283 | rfkill_free(sc->rf_kill.rfkill); | |
1284 | ||
1285 | /* Deinitialize the device */ | |
39c3c2f2 | 1286 | ath_cleanup(sc); |
9c84b797 S |
1287 | return -EIO; |
1288 | } else { | |
1289 | sc->sc_flags |= SC_OP_RFKILL_REGISTERED; | |
1290 | } | |
1291 | } | |
1292 | ||
1293 | return 0; | |
1294 | } | |
500c064d VT |
1295 | #endif /* CONFIG_RFKILL */ |
1296 | ||
6baff7f9 | 1297 | void ath_cleanup(struct ath_softc *sc) |
39c3c2f2 GJ |
1298 | { |
1299 | ath_detach(sc); | |
1300 | free_irq(sc->irq, sc); | |
1301 | ath_bus_cleanup(sc); | |
c52f33d0 | 1302 | kfree(sc->sec_wiphy); |
39c3c2f2 GJ |
1303 | ieee80211_free_hw(sc->hw); |
1304 | } | |
1305 | ||
6baff7f9 | 1306 | void ath_detach(struct ath_softc *sc) |
f078f209 | 1307 | { |
8feceb67 | 1308 | struct ieee80211_hw *hw = sc->hw; |
9c84b797 | 1309 | int i = 0; |
f078f209 | 1310 | |
3cbb5dd7 VN |
1311 | ath9k_ps_wakeup(sc); |
1312 | ||
04bd4638 | 1313 | DPRINTF(sc, ATH_DBG_CONFIG, "Detach ATH hw\n"); |
f078f209 | 1314 | |
e97275cb | 1315 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
500c064d VT |
1316 | ath_deinit_rfkill(sc); |
1317 | #endif | |
3fcdfb4b | 1318 | ath_deinit_leds(sc); |
0e2dedf9 | 1319 | cancel_work_sync(&sc->chan_work); |
f98c3bd2 | 1320 | cancel_delayed_work_sync(&sc->wiphy_work); |
3fcdfb4b | 1321 | |
c52f33d0 JM |
1322 | for (i = 0; i < sc->num_sec_wiphy; i++) { |
1323 | struct ath_wiphy *aphy = sc->sec_wiphy[i]; | |
1324 | if (aphy == NULL) | |
1325 | continue; | |
1326 | sc->sec_wiphy[i] = NULL; | |
1327 | ieee80211_unregister_hw(aphy->hw); | |
1328 | ieee80211_free_hw(aphy->hw); | |
1329 | } | |
3fcdfb4b | 1330 | ieee80211_unregister_hw(hw); |
8feceb67 VT |
1331 | ath_rx_cleanup(sc); |
1332 | ath_tx_cleanup(sc); | |
f078f209 | 1333 | |
9c84b797 S |
1334 | tasklet_kill(&sc->intr_tq); |
1335 | tasklet_kill(&sc->bcon_tasklet); | |
f078f209 | 1336 | |
9c84b797 S |
1337 | if (!(sc->sc_flags & SC_OP_INVALID)) |
1338 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); | |
8feceb67 | 1339 | |
9c84b797 S |
1340 | /* cleanup tx queues */ |
1341 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1342 | if (ATH_TXQ_SETUP(sc, i)) | |
b77f483f | 1343 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
9c84b797 S |
1344 | |
1345 | ath9k_hw_detach(sc->sc_ah); | |
826d2680 | 1346 | ath9k_exit_debug(sc); |
3cbb5dd7 | 1347 | ath9k_ps_restore(sc); |
f078f209 LR |
1348 | } |
1349 | ||
e3bb249b BC |
1350 | static int ath9k_reg_notifier(struct wiphy *wiphy, |
1351 | struct regulatory_request *request) | |
1352 | { | |
1353 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | |
1354 | struct ath_wiphy *aphy = hw->priv; | |
1355 | struct ath_softc *sc = aphy->sc; | |
1356 | struct ath_regulatory *reg = &sc->sc_ah->regulatory; | |
1357 | ||
1358 | return ath_reg_notifier_apply(wiphy, request, reg); | |
1359 | } | |
1360 | ||
ff37e337 S |
1361 | static int ath_init(u16 devid, struct ath_softc *sc) |
1362 | { | |
cbe61d8a | 1363 | struct ath_hw *ah = NULL; |
ff37e337 S |
1364 | int status; |
1365 | int error = 0, i; | |
1366 | int csz = 0; | |
1367 | ||
1368 | /* XXX: hardware will not be ready until ath_open() being called */ | |
1369 | sc->sc_flags |= SC_OP_INVALID; | |
88b126af | 1370 | |
826d2680 S |
1371 | if (ath9k_init_debug(sc) < 0) |
1372 | printk(KERN_ERR "Unable to create debugfs files\n"); | |
ff37e337 | 1373 | |
c52f33d0 | 1374 | spin_lock_init(&sc->wiphy_lock); |
ff37e337 | 1375 | spin_lock_init(&sc->sc_resetlock); |
6158425b | 1376 | spin_lock_init(&sc->sc_serial_rw); |
aa33de09 | 1377 | mutex_init(&sc->mutex); |
ff37e337 | 1378 | tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc); |
9fc9ab0a | 1379 | tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, |
ff37e337 S |
1380 | (unsigned long)sc); |
1381 | ||
1382 | /* | |
1383 | * Cache line size is used to size and align various | |
1384 | * structures used to communicate with the hardware. | |
1385 | */ | |
88d15707 | 1386 | ath_read_cachesize(sc, &csz); |
ff37e337 | 1387 | /* XXX assert csz is non-zero */ |
17d7904d | 1388 | sc->cachelsz = csz << 2; /* convert to bytes */ |
ff37e337 | 1389 | |
cbe61d8a | 1390 | ah = ath9k_hw_attach(devid, sc, &status); |
ff37e337 S |
1391 | if (ah == NULL) { |
1392 | DPRINTF(sc, ATH_DBG_FATAL, | |
295834fe | 1393 | "Unable to attach hardware; HAL status %d\n", status); |
ff37e337 S |
1394 | error = -ENXIO; |
1395 | goto bad; | |
1396 | } | |
1397 | sc->sc_ah = ah; | |
1398 | ||
1399 | /* Get the hardware key cache size. */ | |
2660b81a | 1400 | sc->keymax = ah->caps.keycache_size; |
17d7904d | 1401 | if (sc->keymax > ATH_KEYMAX) { |
d8baa939 | 1402 | DPRINTF(sc, ATH_DBG_ANY, |
04bd4638 | 1403 | "Warning, using only %u entries in %u key cache\n", |
17d7904d S |
1404 | ATH_KEYMAX, sc->keymax); |
1405 | sc->keymax = ATH_KEYMAX; | |
ff37e337 S |
1406 | } |
1407 | ||
1408 | /* | |
1409 | * Reset the key cache since some parts do not | |
1410 | * reset the contents on initial power up. | |
1411 | */ | |
17d7904d | 1412 | for (i = 0; i < sc->keymax; i++) |
ff37e337 | 1413 | ath9k_hw_keyreset(ah, (u16) i); |
ff37e337 | 1414 | |
85efc86e LR |
1415 | error = ath_regd_init(&sc->sc_ah->regulatory, sc->hw->wiphy, |
1416 | ath9k_reg_notifier); | |
1417 | if (error) | |
ff37e337 S |
1418 | goto bad; |
1419 | ||
1420 | /* default to MONITOR mode */ | |
2660b81a | 1421 | sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; |
d97809db | 1422 | |
ff37e337 S |
1423 | /* Setup rate tables */ |
1424 | ||
1425 | ath_rate_attach(sc); | |
1426 | ath_setup_rates(sc, IEEE80211_BAND_2GHZ); | |
1427 | ath_setup_rates(sc, IEEE80211_BAND_5GHZ); | |
1428 | ||
1429 | /* | |
1430 | * Allocate hardware transmit queues: one queue for | |
1431 | * beacon frames and one data queue for each QoS | |
1432 | * priority. Note that the hal handles reseting | |
1433 | * these queues at the needed time. | |
1434 | */ | |
b77f483f S |
1435 | sc->beacon.beaconq = ath_beaconq_setup(ah); |
1436 | if (sc->beacon.beaconq == -1) { | |
ff37e337 | 1437 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 1438 | "Unable to setup a beacon xmit queue\n"); |
ff37e337 S |
1439 | error = -EIO; |
1440 | goto bad2; | |
1441 | } | |
b77f483f S |
1442 | sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0); |
1443 | if (sc->beacon.cabq == NULL) { | |
ff37e337 | 1444 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 1445 | "Unable to setup CAB xmit queue\n"); |
ff37e337 S |
1446 | error = -EIO; |
1447 | goto bad2; | |
1448 | } | |
1449 | ||
17d7904d | 1450 | sc->config.cabqReadytime = ATH_CABQ_READY_TIME; |
ff37e337 S |
1451 | ath_cabq_update(sc); |
1452 | ||
b77f483f S |
1453 | for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++) |
1454 | sc->tx.hwq_map[i] = -1; | |
ff37e337 S |
1455 | |
1456 | /* Setup data queues */ | |
1457 | /* NB: ensure BK queue is the lowest priority h/w queue */ | |
1458 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) { | |
1459 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1460 | "Unable to setup xmit queue for BK traffic\n"); |
ff37e337 S |
1461 | error = -EIO; |
1462 | goto bad2; | |
1463 | } | |
1464 | ||
1465 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BE)) { | |
1466 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1467 | "Unable to setup xmit queue for BE traffic\n"); |
ff37e337 S |
1468 | error = -EIO; |
1469 | goto bad2; | |
1470 | } | |
1471 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VI)) { | |
1472 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1473 | "Unable to setup xmit queue for VI traffic\n"); |
ff37e337 S |
1474 | error = -EIO; |
1475 | goto bad2; | |
1476 | } | |
1477 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VO)) { | |
1478 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1479 | "Unable to setup xmit queue for VO traffic\n"); |
ff37e337 S |
1480 | error = -EIO; |
1481 | goto bad2; | |
1482 | } | |
1483 | ||
1484 | /* Initializes the noise floor to a reasonable default value. | |
1485 | * Later on this will be updated during ANI processing. */ | |
1486 | ||
17d7904d S |
1487 | sc->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR; |
1488 | setup_timer(&sc->ani.timer, ath_ani_calibrate, (unsigned long)sc); | |
ff37e337 S |
1489 | |
1490 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1491 | ATH9K_CIPHER_TKIP, NULL)) { | |
1492 | /* | |
1493 | * Whether we should enable h/w TKIP MIC. | |
1494 | * XXX: if we don't support WME TKIP MIC, then we wouldn't | |
1495 | * report WMM capable, so it's always safe to turn on | |
1496 | * TKIP MIC in this case. | |
1497 | */ | |
1498 | ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC, | |
1499 | 0, 1, NULL); | |
1500 | } | |
1501 | ||
1502 | /* | |
1503 | * Check whether the separate key cache entries | |
1504 | * are required to handle both tx+rx MIC keys. | |
1505 | * With split mic keys the number of stations is limited | |
1506 | * to 27 otherwise 59. | |
1507 | */ | |
1508 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1509 | ATH9K_CIPHER_TKIP, NULL) | |
1510 | && ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1511 | ATH9K_CIPHER_MIC, NULL) | |
1512 | && ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT, | |
1513 | 0, NULL)) | |
17d7904d | 1514 | sc->splitmic = 1; |
ff37e337 S |
1515 | |
1516 | /* turn on mcast key search if possible */ | |
1517 | if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL)) | |
1518 | (void)ath9k_hw_setcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 1, | |
1519 | 1, NULL); | |
1520 | ||
17d7904d | 1521 | sc->config.txpowlimit = ATH_TXPOWER_MAX; |
ff37e337 S |
1522 | |
1523 | /* 11n Capabilities */ | |
2660b81a | 1524 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
ff37e337 S |
1525 | sc->sc_flags |= SC_OP_TXAGGR; |
1526 | sc->sc_flags |= SC_OP_RXAGGR; | |
1527 | } | |
1528 | ||
2660b81a S |
1529 | sc->tx_chainmask = ah->caps.tx_chainmask; |
1530 | sc->rx_chainmask = ah->caps.rx_chainmask; | |
ff37e337 S |
1531 | |
1532 | ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL); | |
b77f483f | 1533 | sc->rx.defant = ath9k_hw_getdefantenna(ah); |
ff37e337 | 1534 | |
8ca21f01 | 1535 | if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) |
ba52da58 | 1536 | memcpy(sc->bssidmask, ath_bcast_mac, ETH_ALEN); |
ff37e337 | 1537 | |
b77f483f | 1538 | sc->beacon.slottime = ATH9K_SLOT_TIME_9; /* default to short slot time */ |
ff37e337 S |
1539 | |
1540 | /* initialize beacon slots */ | |
c52f33d0 | 1541 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
2c3db3d5 | 1542 | sc->beacon.bslot[i] = NULL; |
c52f33d0 JM |
1543 | sc->beacon.bslot_aphy[i] = NULL; |
1544 | } | |
ff37e337 | 1545 | |
ff37e337 S |
1546 | /* setup channels and rates */ |
1547 | ||
5f8e077c | 1548 | sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable; |
ff37e337 S |
1549 | sc->sbands[IEEE80211_BAND_2GHZ].bitrates = |
1550 | sc->rates[IEEE80211_BAND_2GHZ]; | |
1551 | sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ; | |
5f8e077c LR |
1552 | sc->sbands[IEEE80211_BAND_2GHZ].n_channels = |
1553 | ARRAY_SIZE(ath9k_2ghz_chantable); | |
ff37e337 | 1554 | |
2660b81a | 1555 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) { |
5f8e077c | 1556 | sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable; |
ff37e337 S |
1557 | sc->sbands[IEEE80211_BAND_5GHZ].bitrates = |
1558 | sc->rates[IEEE80211_BAND_5GHZ]; | |
1559 | sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; | |
5f8e077c LR |
1560 | sc->sbands[IEEE80211_BAND_5GHZ].n_channels = |
1561 | ARRAY_SIZE(ath9k_5ghz_chantable); | |
ff37e337 S |
1562 | } |
1563 | ||
2660b81a | 1564 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX) |
c97c92d9 VT |
1565 | ath9k_hw_btcoex_enable(sc->sc_ah); |
1566 | ||
ff37e337 S |
1567 | return 0; |
1568 | bad2: | |
1569 | /* cleanup tx queues */ | |
1570 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1571 | if (ATH_TXQ_SETUP(sc, i)) | |
b77f483f | 1572 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
ff37e337 S |
1573 | bad: |
1574 | if (ah) | |
1575 | ath9k_hw_detach(ah); | |
40b130a9 | 1576 | ath9k_exit_debug(sc); |
ff37e337 S |
1577 | |
1578 | return error; | |
1579 | } | |
1580 | ||
c52f33d0 | 1581 | void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) |
f078f209 | 1582 | { |
9c84b797 S |
1583 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
1584 | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | | |
1585 | IEEE80211_HW_SIGNAL_DBM | | |
3cbb5dd7 VN |
1586 | IEEE80211_HW_AMPDU_AGGREGATION | |
1587 | IEEE80211_HW_SUPPORTS_PS | | |
eeee1320 S |
1588 | IEEE80211_HW_PS_NULLFUNC_STACK | |
1589 | IEEE80211_HW_SPECTRUM_MGMT; | |
f078f209 | 1590 | |
b3bd89ce | 1591 | if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt) |
0ced0e17 JM |
1592 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
1593 | ||
9c84b797 S |
1594 | hw->wiphy->interface_modes = |
1595 | BIT(NL80211_IFTYPE_AP) | | |
1596 | BIT(NL80211_IFTYPE_STATION) | | |
9cb5412b PE |
1597 | BIT(NL80211_IFTYPE_ADHOC) | |
1598 | BIT(NL80211_IFTYPE_MESH_POINT); | |
f078f209 | 1599 | |
8feceb67 | 1600 | hw->queues = 4; |
e63835b0 | 1601 | hw->max_rates = 4; |
171387ef | 1602 | hw->channel_change_time = 5000; |
465ca84d | 1603 | hw->max_listen_interval = 10; |
e63835b0 | 1604 | hw->max_rate_tries = ATH_11N_TXMAXTRY; |
528f0c6b | 1605 | hw->sta_data_size = sizeof(struct ath_node); |
17d7904d | 1606 | hw->vif_data_size = sizeof(struct ath_vif); |
f078f209 | 1607 | |
8feceb67 | 1608 | hw->rate_control_algorithm = "ath9k_rate_control"; |
f078f209 | 1609 | |
c52f33d0 JM |
1610 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
1611 | &sc->sbands[IEEE80211_BAND_2GHZ]; | |
1612 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) | |
1613 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
1614 | &sc->sbands[IEEE80211_BAND_5GHZ]; | |
1615 | } | |
1616 | ||
1617 | int ath_attach(u16 devid, struct ath_softc *sc) | |
1618 | { | |
1619 | struct ieee80211_hw *hw = sc->hw; | |
c52f33d0 | 1620 | int error = 0, i; |
3a702e49 | 1621 | struct ath_regulatory *reg; |
c52f33d0 JM |
1622 | |
1623 | DPRINTF(sc, ATH_DBG_CONFIG, "Attach ATH hw\n"); | |
1624 | ||
1625 | error = ath_init(devid, sc); | |
1626 | if (error != 0) | |
1627 | return error; | |
1628 | ||
c02cf373 BC |
1629 | reg = &sc->sc_ah->regulatory; |
1630 | ||
c52f33d0 JM |
1631 | /* get mac address from hardware and set in mac80211 */ |
1632 | ||
1633 | SET_IEEE80211_PERM_ADDR(hw, sc->sc_ah->macaddr); | |
1634 | ||
1635 | ath_set_hw_capab(sc, hw); | |
1636 | ||
2660b81a | 1637 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
eb2599ca | 1638 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap); |
2660b81a | 1639 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) |
eb2599ca | 1640 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); |
9c84b797 S |
1641 | } |
1642 | ||
db93e7b5 SB |
1643 | /* initialize tx/rx engine */ |
1644 | error = ath_tx_init(sc, ATH_TXBUF); | |
1645 | if (error != 0) | |
40b130a9 | 1646 | goto error_attach; |
8feceb67 | 1647 | |
db93e7b5 SB |
1648 | error = ath_rx_init(sc, ATH_RXBUF); |
1649 | if (error != 0) | |
40b130a9 | 1650 | goto error_attach; |
8feceb67 | 1651 | |
e97275cb | 1652 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
500c064d | 1653 | /* Initialze h/w Rfkill */ |
2660b81a | 1654 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
500c064d VT |
1655 | INIT_DELAYED_WORK(&sc->rf_kill.rfkill_poll, ath_rfkill_poll); |
1656 | ||
1657 | /* Initialize s/w rfkill */ | |
40b130a9 VT |
1658 | error = ath_init_sw_rfkill(sc); |
1659 | if (error) | |
1660 | goto error_attach; | |
500c064d VT |
1661 | #endif |
1662 | ||
0e2dedf9 | 1663 | INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work); |
f98c3bd2 JM |
1664 | INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work); |
1665 | sc->wiphy_scheduler_int = msecs_to_jiffies(500); | |
0e2dedf9 | 1666 | |
db93e7b5 | 1667 | error = ieee80211_register_hw(hw); |
8feceb67 | 1668 | |
3a702e49 | 1669 | if (!ath_is_world_regd(reg)) { |
c02cf373 | 1670 | error = regulatory_hint(hw->wiphy, reg->alpha2); |
fe33eb39 LR |
1671 | if (error) |
1672 | goto error_attach; | |
1673 | } | |
5f8e077c | 1674 | |
db93e7b5 SB |
1675 | /* Initialize LED control */ |
1676 | ath_init_leds(sc); | |
8feceb67 | 1677 | |
5f8e077c | 1678 | |
8feceb67 | 1679 | return 0; |
40b130a9 VT |
1680 | |
1681 | error_attach: | |
1682 | /* cleanup tx queues */ | |
1683 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1684 | if (ATH_TXQ_SETUP(sc, i)) | |
1685 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); | |
1686 | ||
1687 | ath9k_hw_detach(sc->sc_ah); | |
1688 | ath9k_exit_debug(sc); | |
1689 | ||
8feceb67 | 1690 | return error; |
f078f209 LR |
1691 | } |
1692 | ||
ff37e337 S |
1693 | int ath_reset(struct ath_softc *sc, bool retry_tx) |
1694 | { | |
cbe61d8a | 1695 | struct ath_hw *ah = sc->sc_ah; |
030bb495 | 1696 | struct ieee80211_hw *hw = sc->hw; |
ae8d2858 | 1697 | int r; |
ff37e337 S |
1698 | |
1699 | ath9k_hw_set_interrupts(ah, 0); | |
043a0405 | 1700 | ath_drain_all_txq(sc, retry_tx); |
ff37e337 S |
1701 | ath_stoprecv(sc); |
1702 | ath_flushrecv(sc); | |
1703 | ||
1704 | spin_lock_bh(&sc->sc_resetlock); | |
2660b81a | 1705 | r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); |
ae8d2858 | 1706 | if (r) |
ff37e337 | 1707 | DPRINTF(sc, ATH_DBG_FATAL, |
6b45784f | 1708 | "Unable to reset hardware; reset status %d\n", r); |
ff37e337 S |
1709 | spin_unlock_bh(&sc->sc_resetlock); |
1710 | ||
1711 | if (ath_startrecv(sc) != 0) | |
04bd4638 | 1712 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); |
ff37e337 S |
1713 | |
1714 | /* | |
1715 | * We may be doing a reset in response to a request | |
1716 | * that changes the channel so update any state that | |
1717 | * might change as a result. | |
1718 | */ | |
ce111bad | 1719 | ath_cache_conf_rate(sc, &hw->conf); |
ff37e337 S |
1720 | |
1721 | ath_update_txpow(sc); | |
1722 | ||
1723 | if (sc->sc_flags & SC_OP_BEACONS) | |
2c3db3d5 | 1724 | ath_beacon_config(sc, NULL); /* restart beacons */ |
ff37e337 | 1725 | |
17d7904d | 1726 | ath9k_hw_set_interrupts(ah, sc->imask); |
ff37e337 S |
1727 | |
1728 | if (retry_tx) { | |
1729 | int i; | |
1730 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { | |
1731 | if (ATH_TXQ_SETUP(sc, i)) { | |
b77f483f S |
1732 | spin_lock_bh(&sc->tx.txq[i].axq_lock); |
1733 | ath_txq_schedule(sc, &sc->tx.txq[i]); | |
1734 | spin_unlock_bh(&sc->tx.txq[i].axq_lock); | |
ff37e337 S |
1735 | } |
1736 | } | |
1737 | } | |
1738 | ||
ae8d2858 | 1739 | return r; |
ff37e337 S |
1740 | } |
1741 | ||
1742 | /* | |
1743 | * This function will allocate both the DMA descriptor structure, and the | |
1744 | * buffers it contains. These are used to contain the descriptors used | |
1745 | * by the system. | |
1746 | */ | |
1747 | int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, | |
1748 | struct list_head *head, const char *name, | |
1749 | int nbuf, int ndesc) | |
1750 | { | |
1751 | #define DS2PHYS(_dd, _ds) \ | |
1752 | ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) | |
1753 | #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) | |
1754 | #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) | |
1755 | ||
1756 | struct ath_desc *ds; | |
1757 | struct ath_buf *bf; | |
1758 | int i, bsize, error; | |
1759 | ||
04bd4638 S |
1760 | DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n", |
1761 | name, nbuf, ndesc); | |
ff37e337 | 1762 | |
b03a9db9 | 1763 | INIT_LIST_HEAD(head); |
ff37e337 S |
1764 | /* ath_desc must be a multiple of DWORDs */ |
1765 | if ((sizeof(struct ath_desc) % 4) != 0) { | |
04bd4638 | 1766 | DPRINTF(sc, ATH_DBG_FATAL, "ath_desc not DWORD aligned\n"); |
ff37e337 S |
1767 | ASSERT((sizeof(struct ath_desc) % 4) == 0); |
1768 | error = -ENOMEM; | |
1769 | goto fail; | |
1770 | } | |
1771 | ||
ff37e337 S |
1772 | dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc; |
1773 | ||
1774 | /* | |
1775 | * Need additional DMA memory because we can't use | |
1776 | * descriptors that cross the 4K page boundary. Assume | |
1777 | * one skipped descriptor per 4K page. | |
1778 | */ | |
2660b81a | 1779 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
ff37e337 S |
1780 | u32 ndesc_skipped = |
1781 | ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len); | |
1782 | u32 dma_len; | |
1783 | ||
1784 | while (ndesc_skipped) { | |
1785 | dma_len = ndesc_skipped * sizeof(struct ath_desc); | |
1786 | dd->dd_desc_len += dma_len; | |
1787 | ||
1788 | ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len); | |
1789 | }; | |
1790 | } | |
1791 | ||
1792 | /* allocate descriptors */ | |
7da3c55c | 1793 | dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len, |
f0e6ce13 | 1794 | &dd->dd_desc_paddr, GFP_KERNEL); |
ff37e337 S |
1795 | if (dd->dd_desc == NULL) { |
1796 | error = -ENOMEM; | |
1797 | goto fail; | |
1798 | } | |
1799 | ds = dd->dd_desc; | |
04bd4638 | 1800 | DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n", |
ae459af1 | 1801 | name, ds, (u32) dd->dd_desc_len, |
ff37e337 S |
1802 | ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len); |
1803 | ||
1804 | /* allocate buffers */ | |
1805 | bsize = sizeof(struct ath_buf) * nbuf; | |
f0e6ce13 | 1806 | bf = kzalloc(bsize, GFP_KERNEL); |
ff37e337 S |
1807 | if (bf == NULL) { |
1808 | error = -ENOMEM; | |
1809 | goto fail2; | |
1810 | } | |
ff37e337 S |
1811 | dd->dd_bufptr = bf; |
1812 | ||
ff37e337 S |
1813 | for (i = 0; i < nbuf; i++, bf++, ds += ndesc) { |
1814 | bf->bf_desc = ds; | |
1815 | bf->bf_daddr = DS2PHYS(dd, ds); | |
1816 | ||
2660b81a | 1817 | if (!(sc->sc_ah->caps.hw_caps & |
ff37e337 S |
1818 | ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
1819 | /* | |
1820 | * Skip descriptor addresses which can cause 4KB | |
1821 | * boundary crossing (addr + length) with a 32 dword | |
1822 | * descriptor fetch. | |
1823 | */ | |
1824 | while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) { | |
1825 | ASSERT((caddr_t) bf->bf_desc < | |
1826 | ((caddr_t) dd->dd_desc + | |
1827 | dd->dd_desc_len)); | |
1828 | ||
1829 | ds += ndesc; | |
1830 | bf->bf_desc = ds; | |
1831 | bf->bf_daddr = DS2PHYS(dd, ds); | |
1832 | } | |
1833 | } | |
1834 | list_add_tail(&bf->list, head); | |
1835 | } | |
1836 | return 0; | |
1837 | fail2: | |
7da3c55c GJ |
1838 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
1839 | dd->dd_desc_paddr); | |
ff37e337 S |
1840 | fail: |
1841 | memset(dd, 0, sizeof(*dd)); | |
1842 | return error; | |
1843 | #undef ATH_DESC_4KB_BOUND_CHECK | |
1844 | #undef ATH_DESC_4KB_BOUND_NUM_SKIPPED | |
1845 | #undef DS2PHYS | |
1846 | } | |
1847 | ||
1848 | void ath_descdma_cleanup(struct ath_softc *sc, | |
1849 | struct ath_descdma *dd, | |
1850 | struct list_head *head) | |
1851 | { | |
7da3c55c GJ |
1852 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
1853 | dd->dd_desc_paddr); | |
ff37e337 S |
1854 | |
1855 | INIT_LIST_HEAD(head); | |
1856 | kfree(dd->dd_bufptr); | |
1857 | memset(dd, 0, sizeof(*dd)); | |
1858 | } | |
1859 | ||
1860 | int ath_get_hal_qnum(u16 queue, struct ath_softc *sc) | |
1861 | { | |
1862 | int qnum; | |
1863 | ||
1864 | switch (queue) { | |
1865 | case 0: | |
b77f483f | 1866 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VO]; |
ff37e337 S |
1867 | break; |
1868 | case 1: | |
b77f483f | 1869 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VI]; |
ff37e337 S |
1870 | break; |
1871 | case 2: | |
b77f483f | 1872 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
ff37e337 S |
1873 | break; |
1874 | case 3: | |
b77f483f | 1875 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BK]; |
ff37e337 S |
1876 | break; |
1877 | default: | |
b77f483f | 1878 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
ff37e337 S |
1879 | break; |
1880 | } | |
1881 | ||
1882 | return qnum; | |
1883 | } | |
1884 | ||
1885 | int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc) | |
1886 | { | |
1887 | int qnum; | |
1888 | ||
1889 | switch (queue) { | |
1890 | case ATH9K_WME_AC_VO: | |
1891 | qnum = 0; | |
1892 | break; | |
1893 | case ATH9K_WME_AC_VI: | |
1894 | qnum = 1; | |
1895 | break; | |
1896 | case ATH9K_WME_AC_BE: | |
1897 | qnum = 2; | |
1898 | break; | |
1899 | case ATH9K_WME_AC_BK: | |
1900 | qnum = 3; | |
1901 | break; | |
1902 | default: | |
1903 | qnum = -1; | |
1904 | break; | |
1905 | } | |
1906 | ||
1907 | return qnum; | |
1908 | } | |
1909 | ||
5f8e077c LR |
1910 | /* XXX: Remove me once we don't depend on ath9k_channel for all |
1911 | * this redundant data */ | |
0e2dedf9 JM |
1912 | void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, |
1913 | struct ath9k_channel *ichan) | |
5f8e077c | 1914 | { |
5f8e077c LR |
1915 | struct ieee80211_channel *chan = hw->conf.channel; |
1916 | struct ieee80211_conf *conf = &hw->conf; | |
1917 | ||
1918 | ichan->channel = chan->center_freq; | |
1919 | ichan->chan = chan; | |
1920 | ||
1921 | if (chan->band == IEEE80211_BAND_2GHZ) { | |
1922 | ichan->chanmode = CHANNEL_G; | |
1923 | ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM; | |
1924 | } else { | |
1925 | ichan->chanmode = CHANNEL_A; | |
1926 | ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM; | |
1927 | } | |
1928 | ||
1929 | sc->tx_chan_width = ATH9K_HT_MACMODE_20; | |
1930 | ||
1931 | if (conf_is_ht(conf)) { | |
1932 | if (conf_is_ht40(conf)) | |
1933 | sc->tx_chan_width = ATH9K_HT_MACMODE_2040; | |
1934 | ||
1935 | ichan->chanmode = ath_get_extchanmode(sc, chan, | |
1936 | conf->channel_type); | |
1937 | } | |
1938 | } | |
1939 | ||
ff37e337 S |
1940 | /**********************/ |
1941 | /* mac80211 callbacks */ | |
1942 | /**********************/ | |
1943 | ||
8feceb67 | 1944 | static int ath9k_start(struct ieee80211_hw *hw) |
f078f209 | 1945 | { |
bce048d7 JM |
1946 | struct ath_wiphy *aphy = hw->priv; |
1947 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 1948 | struct ieee80211_channel *curchan = hw->conf.channel; |
ff37e337 | 1949 | struct ath9k_channel *init_channel; |
ae8d2858 | 1950 | int r, pos; |
f078f209 | 1951 | |
04bd4638 S |
1952 | DPRINTF(sc, ATH_DBG_CONFIG, "Starting driver with " |
1953 | "initial channel: %d MHz\n", curchan->center_freq); | |
f078f209 | 1954 | |
141b38b6 S |
1955 | mutex_lock(&sc->mutex); |
1956 | ||
9580a222 JM |
1957 | if (ath9k_wiphy_started(sc)) { |
1958 | if (sc->chan_idx == curchan->hw_value) { | |
1959 | /* | |
1960 | * Already on the operational channel, the new wiphy | |
1961 | * can be marked active. | |
1962 | */ | |
1963 | aphy->state = ATH_WIPHY_ACTIVE; | |
1964 | ieee80211_wake_queues(hw); | |
1965 | } else { | |
1966 | /* | |
1967 | * Another wiphy is on another channel, start the new | |
1968 | * wiphy in paused state. | |
1969 | */ | |
1970 | aphy->state = ATH_WIPHY_PAUSED; | |
1971 | ieee80211_stop_queues(hw); | |
1972 | } | |
1973 | mutex_unlock(&sc->mutex); | |
1974 | return 0; | |
1975 | } | |
1976 | aphy->state = ATH_WIPHY_ACTIVE; | |
1977 | ||
8feceb67 | 1978 | /* setup initial channel */ |
f078f209 | 1979 | |
5f8e077c | 1980 | pos = curchan->hw_value; |
f078f209 | 1981 | |
0e2dedf9 | 1982 | sc->chan_idx = pos; |
2660b81a | 1983 | init_channel = &sc->sc_ah->channels[pos]; |
0e2dedf9 | 1984 | ath9k_update_ichannel(sc, hw, init_channel); |
ff37e337 S |
1985 | |
1986 | /* Reset SERDES registers */ | |
1987 | ath9k_hw_configpcipowersave(sc->sc_ah, 0); | |
1988 | ||
1989 | /* | |
1990 | * The basic interface to setting the hardware in a good | |
1991 | * state is ``reset''. On return the hardware is known to | |
1992 | * be powered up and with interrupts disabled. This must | |
1993 | * be followed by initialization of the appropriate bits | |
1994 | * and then setup of the interrupt mask. | |
1995 | */ | |
1996 | spin_lock_bh(&sc->sc_resetlock); | |
ae8d2858 LR |
1997 | r = ath9k_hw_reset(sc->sc_ah, init_channel, false); |
1998 | if (r) { | |
ff37e337 | 1999 | DPRINTF(sc, ATH_DBG_FATAL, |
6b45784f | 2000 | "Unable to reset hardware; reset status %d " |
ae8d2858 LR |
2001 | "(freq %u MHz)\n", r, |
2002 | curchan->center_freq); | |
ff37e337 | 2003 | spin_unlock_bh(&sc->sc_resetlock); |
141b38b6 | 2004 | goto mutex_unlock; |
ff37e337 S |
2005 | } |
2006 | spin_unlock_bh(&sc->sc_resetlock); | |
2007 | ||
2008 | /* | |
2009 | * This is needed only to setup initial state | |
2010 | * but it's best done after a reset. | |
2011 | */ | |
2012 | ath_update_txpow(sc); | |
8feceb67 | 2013 | |
ff37e337 S |
2014 | /* |
2015 | * Setup the hardware after reset: | |
2016 | * The receive engine is set going. | |
2017 | * Frame transmit is handled entirely | |
2018 | * in the frame output path; there's nothing to do | |
2019 | * here except setup the interrupt mask. | |
2020 | */ | |
2021 | if (ath_startrecv(sc) != 0) { | |
1ffb0610 | 2022 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); |
141b38b6 S |
2023 | r = -EIO; |
2024 | goto mutex_unlock; | |
f078f209 | 2025 | } |
8feceb67 | 2026 | |
ff37e337 | 2027 | /* Setup our intr mask. */ |
17d7904d | 2028 | sc->imask = ATH9K_INT_RX | ATH9K_INT_TX |
ff37e337 S |
2029 | | ATH9K_INT_RXEOL | ATH9K_INT_RXORN |
2030 | | ATH9K_INT_FATAL | ATH9K_INT_GLOBAL; | |
2031 | ||
2660b81a | 2032 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_GTT) |
17d7904d | 2033 | sc->imask |= ATH9K_INT_GTT; |
ff37e337 | 2034 | |
2660b81a | 2035 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) |
17d7904d | 2036 | sc->imask |= ATH9K_INT_CST; |
ff37e337 | 2037 | |
ce111bad | 2038 | ath_cache_conf_rate(sc, &hw->conf); |
ff37e337 S |
2039 | |
2040 | sc->sc_flags &= ~SC_OP_INVALID; | |
2041 | ||
2042 | /* Disable BMISS interrupt when we're not associated */ | |
17d7904d S |
2043 | sc->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); |
2044 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); | |
ff37e337 | 2045 | |
bce048d7 | 2046 | ieee80211_wake_queues(hw); |
ff37e337 | 2047 | |
e97275cb | 2048 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
ae8d2858 | 2049 | r = ath_start_rfkill_poll(sc); |
500c064d | 2050 | #endif |
141b38b6 S |
2051 | |
2052 | mutex_unlock: | |
2053 | mutex_unlock(&sc->mutex); | |
2054 | ||
ae8d2858 | 2055 | return r; |
f078f209 LR |
2056 | } |
2057 | ||
8feceb67 VT |
2058 | static int ath9k_tx(struct ieee80211_hw *hw, |
2059 | struct sk_buff *skb) | |
f078f209 | 2060 | { |
528f0c6b | 2061 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
bce048d7 JM |
2062 | struct ath_wiphy *aphy = hw->priv; |
2063 | struct ath_softc *sc = aphy->sc; | |
528f0c6b | 2064 | struct ath_tx_control txctl; |
8feceb67 | 2065 | int hdrlen, padsize; |
528f0c6b | 2066 | |
8089cc47 | 2067 | if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) { |
ee166a0e JM |
2068 | printk(KERN_DEBUG "ath9k: %s: TX in unexpected wiphy state " |
2069 | "%d\n", wiphy_name(hw->wiphy), aphy->state); | |
2070 | goto exit; | |
2071 | } | |
2072 | ||
9a23f9ca JM |
2073 | if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) { |
2074 | /* | |
2075 | * We are using PS-Poll and mac80211 can request TX while in | |
2076 | * power save mode. Need to wake up hardware for the TX to be | |
2077 | * completed and if needed, also for RX of buffered frames. | |
2078 | */ | |
2079 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
2080 | ath9k_ps_wakeup(sc); | |
2081 | ath9k_hw_setrxabort(sc->sc_ah, 0); | |
2082 | if (ieee80211_is_pspoll(hdr->frame_control)) { | |
2083 | DPRINTF(sc, ATH_DBG_PS, "Sending PS-Poll to pick a " | |
2084 | "buffered frame\n"); | |
2085 | sc->sc_flags |= SC_OP_WAIT_FOR_PSPOLL_DATA; | |
2086 | } else { | |
2087 | DPRINTF(sc, ATH_DBG_PS, "Wake up to complete TX\n"); | |
2088 | sc->sc_flags |= SC_OP_WAIT_FOR_TX_ACK; | |
2089 | } | |
2090 | /* | |
2091 | * The actual restore operation will happen only after | |
2092 | * the sc_flags bit is cleared. We are just dropping | |
2093 | * the ps_usecount here. | |
2094 | */ | |
2095 | ath9k_ps_restore(sc); | |
2096 | } | |
2097 | ||
528f0c6b | 2098 | memset(&txctl, 0, sizeof(struct ath_tx_control)); |
f078f209 | 2099 | |
8feceb67 VT |
2100 | /* |
2101 | * As a temporary workaround, assign seq# here; this will likely need | |
2102 | * to be cleaned up to work better with Beacon transmission and virtual | |
2103 | * BSSes. | |
2104 | */ | |
2105 | if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { | |
2106 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
2107 | if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) | |
b77f483f | 2108 | sc->tx.seq_no += 0x10; |
8feceb67 | 2109 | hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
b77f483f | 2110 | hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no); |
8feceb67 | 2111 | } |
f078f209 | 2112 | |
8feceb67 VT |
2113 | /* Add the padding after the header if this is not already done */ |
2114 | hdrlen = ieee80211_get_hdrlen_from_skb(skb); | |
2115 | if (hdrlen & 3) { | |
2116 | padsize = hdrlen % 4; | |
2117 | if (skb_headroom(skb) < padsize) | |
2118 | return -1; | |
2119 | skb_push(skb, padsize); | |
2120 | memmove(skb->data, skb->data + padsize, hdrlen); | |
2121 | } | |
2122 | ||
528f0c6b S |
2123 | /* Check if a tx queue is available */ |
2124 | ||
2125 | txctl.txq = ath_test_get_txq(sc, skb); | |
2126 | if (!txctl.txq) | |
2127 | goto exit; | |
2128 | ||
04bd4638 | 2129 | DPRINTF(sc, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); |
8feceb67 | 2130 | |
c52f33d0 | 2131 | if (ath_tx_start(hw, skb, &txctl) != 0) { |
04bd4638 | 2132 | DPRINTF(sc, ATH_DBG_XMIT, "TX failed\n"); |
528f0c6b | 2133 | goto exit; |
8feceb67 VT |
2134 | } |
2135 | ||
528f0c6b S |
2136 | return 0; |
2137 | exit: | |
2138 | dev_kfree_skb_any(skb); | |
8feceb67 | 2139 | return 0; |
f078f209 LR |
2140 | } |
2141 | ||
8feceb67 | 2142 | static void ath9k_stop(struct ieee80211_hw *hw) |
f078f209 | 2143 | { |
bce048d7 JM |
2144 | struct ath_wiphy *aphy = hw->priv; |
2145 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2146 | |
9580a222 JM |
2147 | aphy->state = ATH_WIPHY_INACTIVE; |
2148 | ||
9c84b797 | 2149 | if (sc->sc_flags & SC_OP_INVALID) { |
04bd4638 | 2150 | DPRINTF(sc, ATH_DBG_ANY, "Device not present\n"); |
9c84b797 S |
2151 | return; |
2152 | } | |
8feceb67 | 2153 | |
141b38b6 | 2154 | mutex_lock(&sc->mutex); |
ff37e337 | 2155 | |
bce048d7 | 2156 | ieee80211_stop_queues(hw); |
ff37e337 | 2157 | |
9580a222 JM |
2158 | if (ath9k_wiphy_started(sc)) { |
2159 | mutex_unlock(&sc->mutex); | |
2160 | return; /* another wiphy still in use */ | |
2161 | } | |
2162 | ||
ff37e337 S |
2163 | /* make sure h/w will not generate any interrupt |
2164 | * before setting the invalid flag. */ | |
2165 | ath9k_hw_set_interrupts(sc->sc_ah, 0); | |
2166 | ||
2167 | if (!(sc->sc_flags & SC_OP_INVALID)) { | |
043a0405 | 2168 | ath_drain_all_txq(sc, false); |
ff37e337 S |
2169 | ath_stoprecv(sc); |
2170 | ath9k_hw_phy_disable(sc->sc_ah); | |
2171 | } else | |
b77f483f | 2172 | sc->rx.rxlink = NULL; |
ff37e337 S |
2173 | |
2174 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) | |
2660b81a | 2175 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
ff37e337 S |
2176 | cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll); |
2177 | #endif | |
2178 | /* disable HAL and put h/w to sleep */ | |
2179 | ath9k_hw_disable(sc->sc_ah); | |
2180 | ath9k_hw_configpcipowersave(sc->sc_ah, 1); | |
2181 | ||
2182 | sc->sc_flags |= SC_OP_INVALID; | |
500c064d | 2183 | |
141b38b6 S |
2184 | mutex_unlock(&sc->mutex); |
2185 | ||
04bd4638 | 2186 | DPRINTF(sc, ATH_DBG_CONFIG, "Driver halt\n"); |
f078f209 LR |
2187 | } |
2188 | ||
8feceb67 VT |
2189 | static int ath9k_add_interface(struct ieee80211_hw *hw, |
2190 | struct ieee80211_if_init_conf *conf) | |
f078f209 | 2191 | { |
bce048d7 JM |
2192 | struct ath_wiphy *aphy = hw->priv; |
2193 | struct ath_softc *sc = aphy->sc; | |
17d7904d | 2194 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
d97809db | 2195 | enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; |
2c3db3d5 | 2196 | int ret = 0; |
8feceb67 | 2197 | |
141b38b6 S |
2198 | mutex_lock(&sc->mutex); |
2199 | ||
8ca21f01 JM |
2200 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) && |
2201 | sc->nvifs > 0) { | |
2202 | ret = -ENOBUFS; | |
2203 | goto out; | |
2204 | } | |
2205 | ||
8feceb67 | 2206 | switch (conf->type) { |
05c914fe | 2207 | case NL80211_IFTYPE_STATION: |
d97809db | 2208 | ic_opmode = NL80211_IFTYPE_STATION; |
f078f209 | 2209 | break; |
05c914fe | 2210 | case NL80211_IFTYPE_ADHOC: |
05c914fe | 2211 | case NL80211_IFTYPE_AP: |
9cb5412b | 2212 | case NL80211_IFTYPE_MESH_POINT: |
2c3db3d5 JM |
2213 | if (sc->nbcnvifs >= ATH_BCBUF) { |
2214 | ret = -ENOBUFS; | |
2215 | goto out; | |
2216 | } | |
9cb5412b | 2217 | ic_opmode = conf->type; |
f078f209 LR |
2218 | break; |
2219 | default: | |
2220 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 2221 | "Interface type %d not yet supported\n", conf->type); |
2c3db3d5 JM |
2222 | ret = -EOPNOTSUPP; |
2223 | goto out; | |
f078f209 LR |
2224 | } |
2225 | ||
17d7904d | 2226 | DPRINTF(sc, ATH_DBG_CONFIG, "Attach a VIF of type: %d\n", ic_opmode); |
8feceb67 | 2227 | |
17d7904d | 2228 | /* Set the VIF opmode */ |
5640b08e S |
2229 | avp->av_opmode = ic_opmode; |
2230 | avp->av_bslot = -1; | |
2231 | ||
2c3db3d5 | 2232 | sc->nvifs++; |
8ca21f01 JM |
2233 | |
2234 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) | |
2235 | ath9k_set_bssid_mask(hw); | |
2236 | ||
2c3db3d5 JM |
2237 | if (sc->nvifs > 1) |
2238 | goto out; /* skip global settings for secondary vif */ | |
2239 | ||
b238e90e | 2240 | if (ic_opmode == NL80211_IFTYPE_AP) { |
5640b08e | 2241 | ath9k_hw_set_tsfadjust(sc->sc_ah, 1); |
b238e90e S |
2242 | sc->sc_flags |= SC_OP_TSF_RESET; |
2243 | } | |
5640b08e | 2244 | |
5640b08e | 2245 | /* Set the device opmode */ |
2660b81a | 2246 | sc->sc_ah->opmode = ic_opmode; |
5640b08e | 2247 | |
4e30ffa2 VN |
2248 | /* |
2249 | * Enable MIB interrupts when there are hardware phy counters. | |
2250 | * Note we only do this (at the moment) for station mode. | |
2251 | */ | |
4af9cf4f | 2252 | if ((conf->type == NL80211_IFTYPE_STATION) || |
9cb5412b PE |
2253 | (conf->type == NL80211_IFTYPE_ADHOC) || |
2254 | (conf->type == NL80211_IFTYPE_MESH_POINT)) { | |
4af9cf4f S |
2255 | if (ath9k_hw_phycounters(sc->sc_ah)) |
2256 | sc->imask |= ATH9K_INT_MIB; | |
2257 | sc->imask |= ATH9K_INT_TSFOOR; | |
2258 | } | |
2259 | ||
17d7904d | 2260 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
4e30ffa2 | 2261 | |
415f738e S |
2262 | if (conf->type == NL80211_IFTYPE_AP) |
2263 | ath_start_ani(sc); | |
6f255425 | 2264 | |
2c3db3d5 | 2265 | out: |
141b38b6 | 2266 | mutex_unlock(&sc->mutex); |
2c3db3d5 | 2267 | return ret; |
f078f209 LR |
2268 | } |
2269 | ||
8feceb67 VT |
2270 | static void ath9k_remove_interface(struct ieee80211_hw *hw, |
2271 | struct ieee80211_if_init_conf *conf) | |
f078f209 | 2272 | { |
bce048d7 JM |
2273 | struct ath_wiphy *aphy = hw->priv; |
2274 | struct ath_softc *sc = aphy->sc; | |
17d7904d | 2275 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
2c3db3d5 | 2276 | int i; |
f078f209 | 2277 | |
04bd4638 | 2278 | DPRINTF(sc, ATH_DBG_CONFIG, "Detach Interface\n"); |
f078f209 | 2279 | |
141b38b6 S |
2280 | mutex_lock(&sc->mutex); |
2281 | ||
6f255425 | 2282 | /* Stop ANI */ |
17d7904d | 2283 | del_timer_sync(&sc->ani.timer); |
580f0b8a | 2284 | |
8feceb67 | 2285 | /* Reclaim beacon resources */ |
9cb5412b PE |
2286 | if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) || |
2287 | (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) || | |
2288 | (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) { | |
b77f483f | 2289 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
8feceb67 | 2290 | ath_beacon_return(sc, avp); |
580f0b8a | 2291 | } |
f078f209 | 2292 | |
8feceb67 | 2293 | sc->sc_flags &= ~SC_OP_BEACONS; |
f078f209 | 2294 | |
2c3db3d5 JM |
2295 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
2296 | if (sc->beacon.bslot[i] == conf->vif) { | |
2297 | printk(KERN_DEBUG "%s: vif had allocated beacon " | |
2298 | "slot\n", __func__); | |
2299 | sc->beacon.bslot[i] = NULL; | |
c52f33d0 | 2300 | sc->beacon.bslot_aphy[i] = NULL; |
2c3db3d5 JM |
2301 | } |
2302 | } | |
2303 | ||
17d7904d | 2304 | sc->nvifs--; |
141b38b6 S |
2305 | |
2306 | mutex_unlock(&sc->mutex); | |
f078f209 LR |
2307 | } |
2308 | ||
e8975581 | 2309 | static int ath9k_config(struct ieee80211_hw *hw, u32 changed) |
f078f209 | 2310 | { |
bce048d7 JM |
2311 | struct ath_wiphy *aphy = hw->priv; |
2312 | struct ath_softc *sc = aphy->sc; | |
e8975581 | 2313 | struct ieee80211_conf *conf = &hw->conf; |
8782b41d | 2314 | struct ath_hw *ah = sc->sc_ah; |
f078f209 | 2315 | |
aa33de09 | 2316 | mutex_lock(&sc->mutex); |
141b38b6 | 2317 | |
3cbb5dd7 VN |
2318 | if (changed & IEEE80211_CONF_CHANGE_PS) { |
2319 | if (conf->flags & IEEE80211_CONF_PS) { | |
8782b41d VN |
2320 | if (!(ah->caps.hw_caps & |
2321 | ATH9K_HW_CAP_AUTOSLEEP)) { | |
2322 | if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { | |
2323 | sc->imask |= ATH9K_INT_TIM_TIMER; | |
2324 | ath9k_hw_set_interrupts(sc->sc_ah, | |
2325 | sc->imask); | |
2326 | } | |
2327 | ath9k_hw_setrxabort(sc->sc_ah, 1); | |
3cbb5dd7 | 2328 | } |
3cbb5dd7 VN |
2329 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); |
2330 | } else { | |
2331 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); | |
8782b41d VN |
2332 | if (!(ah->caps.hw_caps & |
2333 | ATH9K_HW_CAP_AUTOSLEEP)) { | |
2334 | ath9k_hw_setrxabort(sc->sc_ah, 0); | |
9a23f9ca JM |
2335 | sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | |
2336 | SC_OP_WAIT_FOR_CAB | | |
2337 | SC_OP_WAIT_FOR_PSPOLL_DATA | | |
2338 | SC_OP_WAIT_FOR_TX_ACK); | |
8782b41d VN |
2339 | if (sc->imask & ATH9K_INT_TIM_TIMER) { |
2340 | sc->imask &= ~ATH9K_INT_TIM_TIMER; | |
2341 | ath9k_hw_set_interrupts(sc->sc_ah, | |
2342 | sc->imask); | |
2343 | } | |
3cbb5dd7 VN |
2344 | } |
2345 | } | |
2346 | } | |
2347 | ||
4797938c | 2348 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
99405f93 | 2349 | struct ieee80211_channel *curchan = hw->conf.channel; |
5f8e077c | 2350 | int pos = curchan->hw_value; |
ae5eb026 | 2351 | |
0e2dedf9 JM |
2352 | aphy->chan_idx = pos; |
2353 | aphy->chan_is_ht = conf_is_ht(conf); | |
2354 | ||
8089cc47 JM |
2355 | if (aphy->state == ATH_WIPHY_SCAN || |
2356 | aphy->state == ATH_WIPHY_ACTIVE) | |
2357 | ath9k_wiphy_pause_all_forced(sc, aphy); | |
2358 | else { | |
2359 | /* | |
2360 | * Do not change operational channel based on a paused | |
2361 | * wiphy changes. | |
2362 | */ | |
2363 | goto skip_chan_change; | |
2364 | } | |
0e2dedf9 | 2365 | |
04bd4638 S |
2366 | DPRINTF(sc, ATH_DBG_CONFIG, "Set channel: %d MHz\n", |
2367 | curchan->center_freq); | |
f078f209 | 2368 | |
5f8e077c | 2369 | /* XXX: remove me eventualy */ |
0e2dedf9 | 2370 | ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]); |
e11602b7 | 2371 | |
ecf70441 | 2372 | ath_update_chainmask(sc, conf_is_ht(conf)); |
86060f0d | 2373 | |
0e2dedf9 | 2374 | if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { |
04bd4638 | 2375 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n"); |
aa33de09 | 2376 | mutex_unlock(&sc->mutex); |
e11602b7 S |
2377 | return -EINVAL; |
2378 | } | |
094d05dc | 2379 | } |
f078f209 | 2380 | |
8089cc47 | 2381 | skip_chan_change: |
5c020dc6 | 2382 | if (changed & IEEE80211_CONF_CHANGE_POWER) |
17d7904d | 2383 | sc->config.txpowlimit = 2 * conf->power_level; |
f078f209 | 2384 | |
aa33de09 | 2385 | mutex_unlock(&sc->mutex); |
141b38b6 | 2386 | |
f078f209 LR |
2387 | return 0; |
2388 | } | |
2389 | ||
8feceb67 VT |
2390 | #define SUPPORTED_FILTERS \ |
2391 | (FIF_PROMISC_IN_BSS | \ | |
2392 | FIF_ALLMULTI | \ | |
2393 | FIF_CONTROL | \ | |
2394 | FIF_OTHER_BSS | \ | |
2395 | FIF_BCN_PRBRESP_PROMISC | \ | |
2396 | FIF_FCSFAIL) | |
c83be688 | 2397 | |
8feceb67 VT |
2398 | /* FIXME: sc->sc_full_reset ? */ |
2399 | static void ath9k_configure_filter(struct ieee80211_hw *hw, | |
2400 | unsigned int changed_flags, | |
2401 | unsigned int *total_flags, | |
2402 | int mc_count, | |
2403 | struct dev_mc_list *mclist) | |
2404 | { | |
bce048d7 JM |
2405 | struct ath_wiphy *aphy = hw->priv; |
2406 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2407 | u32 rfilt; |
f078f209 | 2408 | |
8feceb67 VT |
2409 | changed_flags &= SUPPORTED_FILTERS; |
2410 | *total_flags &= SUPPORTED_FILTERS; | |
f078f209 | 2411 | |
b77f483f | 2412 | sc->rx.rxfilter = *total_flags; |
8feceb67 VT |
2413 | rfilt = ath_calcrxfilter(sc); |
2414 | ath9k_hw_setrxfilter(sc->sc_ah, rfilt); | |
f078f209 | 2415 | |
b77f483f | 2416 | DPRINTF(sc, ATH_DBG_CONFIG, "Set HW RX filter: 0x%x\n", sc->rx.rxfilter); |
8feceb67 | 2417 | } |
f078f209 | 2418 | |
8feceb67 VT |
2419 | static void ath9k_sta_notify(struct ieee80211_hw *hw, |
2420 | struct ieee80211_vif *vif, | |
2421 | enum sta_notify_cmd cmd, | |
17741cdc | 2422 | struct ieee80211_sta *sta) |
8feceb67 | 2423 | { |
bce048d7 JM |
2424 | struct ath_wiphy *aphy = hw->priv; |
2425 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2426 | |
8feceb67 VT |
2427 | switch (cmd) { |
2428 | case STA_NOTIFY_ADD: | |
5640b08e | 2429 | ath_node_attach(sc, sta); |
8feceb67 VT |
2430 | break; |
2431 | case STA_NOTIFY_REMOVE: | |
b5aa9bf9 | 2432 | ath_node_detach(sc, sta); |
8feceb67 VT |
2433 | break; |
2434 | default: | |
2435 | break; | |
2436 | } | |
f078f209 LR |
2437 | } |
2438 | ||
141b38b6 | 2439 | static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
8feceb67 | 2440 | const struct ieee80211_tx_queue_params *params) |
f078f209 | 2441 | { |
bce048d7 JM |
2442 | struct ath_wiphy *aphy = hw->priv; |
2443 | struct ath_softc *sc = aphy->sc; | |
8feceb67 VT |
2444 | struct ath9k_tx_queue_info qi; |
2445 | int ret = 0, qnum; | |
f078f209 | 2446 | |
8feceb67 VT |
2447 | if (queue >= WME_NUM_AC) |
2448 | return 0; | |
f078f209 | 2449 | |
141b38b6 S |
2450 | mutex_lock(&sc->mutex); |
2451 | ||
1ffb0610 S |
2452 | memset(&qi, 0, sizeof(struct ath9k_tx_queue_info)); |
2453 | ||
8feceb67 VT |
2454 | qi.tqi_aifs = params->aifs; |
2455 | qi.tqi_cwmin = params->cw_min; | |
2456 | qi.tqi_cwmax = params->cw_max; | |
2457 | qi.tqi_burstTime = params->txop; | |
2458 | qnum = ath_get_hal_qnum(queue, sc); | |
f078f209 | 2459 | |
8feceb67 | 2460 | DPRINTF(sc, ATH_DBG_CONFIG, |
04bd4638 | 2461 | "Configure tx [queue/halq] [%d/%d], " |
8feceb67 | 2462 | "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", |
04bd4638 S |
2463 | queue, qnum, params->aifs, params->cw_min, |
2464 | params->cw_max, params->txop); | |
f078f209 | 2465 | |
8feceb67 VT |
2466 | ret = ath_txq_update(sc, qnum, &qi); |
2467 | if (ret) | |
04bd4638 | 2468 | DPRINTF(sc, ATH_DBG_FATAL, "TXQ Update failed\n"); |
f078f209 | 2469 | |
141b38b6 S |
2470 | mutex_unlock(&sc->mutex); |
2471 | ||
8feceb67 VT |
2472 | return ret; |
2473 | } | |
f078f209 | 2474 | |
8feceb67 VT |
2475 | static int ath9k_set_key(struct ieee80211_hw *hw, |
2476 | enum set_key_cmd cmd, | |
dc822b5d JB |
2477 | struct ieee80211_vif *vif, |
2478 | struct ieee80211_sta *sta, | |
8feceb67 VT |
2479 | struct ieee80211_key_conf *key) |
2480 | { | |
bce048d7 JM |
2481 | struct ath_wiphy *aphy = hw->priv; |
2482 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2483 | int ret = 0; |
f078f209 | 2484 | |
b3bd89ce JM |
2485 | if (modparam_nohwcrypt) |
2486 | return -ENOSPC; | |
2487 | ||
141b38b6 | 2488 | mutex_lock(&sc->mutex); |
3cbb5dd7 | 2489 | ath9k_ps_wakeup(sc); |
d8baa939 | 2490 | DPRINTF(sc, ATH_DBG_CONFIG, "Set HW Key\n"); |
f078f209 | 2491 | |
8feceb67 VT |
2492 | switch (cmd) { |
2493 | case SET_KEY: | |
3f53dd64 | 2494 | ret = ath_key_config(sc, vif, sta, key); |
6ace2891 JM |
2495 | if (ret >= 0) { |
2496 | key->hw_key_idx = ret; | |
8feceb67 VT |
2497 | /* push IV and Michael MIC generation to stack */ |
2498 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
2499 | if (key->alg == ALG_TKIP) | |
2500 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
0ced0e17 JM |
2501 | if (sc->sc_ah->sw_mgmt_crypto && key->alg == ALG_CCMP) |
2502 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; | |
6ace2891 | 2503 | ret = 0; |
8feceb67 VT |
2504 | } |
2505 | break; | |
2506 | case DISABLE_KEY: | |
2507 | ath_key_delete(sc, key); | |
8feceb67 VT |
2508 | break; |
2509 | default: | |
2510 | ret = -EINVAL; | |
2511 | } | |
f078f209 | 2512 | |
3cbb5dd7 | 2513 | ath9k_ps_restore(sc); |
141b38b6 S |
2514 | mutex_unlock(&sc->mutex); |
2515 | ||
8feceb67 VT |
2516 | return ret; |
2517 | } | |
f078f209 | 2518 | |
8feceb67 VT |
2519 | static void ath9k_bss_info_changed(struct ieee80211_hw *hw, |
2520 | struct ieee80211_vif *vif, | |
2521 | struct ieee80211_bss_conf *bss_conf, | |
2522 | u32 changed) | |
2523 | { | |
bce048d7 JM |
2524 | struct ath_wiphy *aphy = hw->priv; |
2525 | struct ath_softc *sc = aphy->sc; | |
2d0ddec5 JB |
2526 | struct ath_hw *ah = sc->sc_ah; |
2527 | struct ath_vif *avp = (void *)vif->drv_priv; | |
2528 | u32 rfilt = 0; | |
2529 | int error, i; | |
f078f209 | 2530 | |
141b38b6 S |
2531 | mutex_lock(&sc->mutex); |
2532 | ||
2d0ddec5 JB |
2533 | /* |
2534 | * TODO: Need to decide which hw opmode to use for | |
2535 | * multi-interface cases | |
2536 | * XXX: This belongs into add_interface! | |
2537 | */ | |
2538 | if (vif->type == NL80211_IFTYPE_AP && | |
2539 | ah->opmode != NL80211_IFTYPE_AP) { | |
2540 | ah->opmode = NL80211_IFTYPE_STATION; | |
2541 | ath9k_hw_setopmode(ah); | |
2542 | memcpy(sc->curbssid, sc->sc_ah->macaddr, ETH_ALEN); | |
2543 | sc->curaid = 0; | |
2544 | ath9k_hw_write_associd(sc); | |
2545 | /* Request full reset to get hw opmode changed properly */ | |
2546 | sc->sc_flags |= SC_OP_FULL_RESET; | |
2547 | } | |
2548 | ||
2549 | if ((changed & BSS_CHANGED_BSSID) && | |
2550 | !is_zero_ether_addr(bss_conf->bssid)) { | |
2551 | switch (vif->type) { | |
2552 | case NL80211_IFTYPE_STATION: | |
2553 | case NL80211_IFTYPE_ADHOC: | |
2554 | case NL80211_IFTYPE_MESH_POINT: | |
2555 | /* Set BSSID */ | |
2556 | memcpy(sc->curbssid, bss_conf->bssid, ETH_ALEN); | |
2557 | memcpy(avp->bssid, bss_conf->bssid, ETH_ALEN); | |
2558 | sc->curaid = 0; | |
2559 | ath9k_hw_write_associd(sc); | |
2560 | ||
2561 | /* Set aggregation protection mode parameters */ | |
2562 | sc->config.ath_aggr_prot = 0; | |
2563 | ||
2564 | DPRINTF(sc, ATH_DBG_CONFIG, | |
2565 | "RX filter 0x%x bssid %pM aid 0x%x\n", | |
2566 | rfilt, sc->curbssid, sc->curaid); | |
2567 | ||
2568 | /* need to reconfigure the beacon */ | |
2569 | sc->sc_flags &= ~SC_OP_BEACONS ; | |
2570 | ||
2571 | break; | |
2572 | default: | |
2573 | break; | |
2574 | } | |
2575 | } | |
2576 | ||
2577 | if ((vif->type == NL80211_IFTYPE_ADHOC) || | |
2578 | (vif->type == NL80211_IFTYPE_AP) || | |
2579 | (vif->type == NL80211_IFTYPE_MESH_POINT)) { | |
2580 | if ((changed & BSS_CHANGED_BEACON) || | |
2581 | (changed & BSS_CHANGED_BEACON_ENABLED && | |
2582 | bss_conf->enable_beacon)) { | |
2583 | /* | |
2584 | * Allocate and setup the beacon frame. | |
2585 | * | |
2586 | * Stop any previous beacon DMA. This may be | |
2587 | * necessary, for example, when an ibss merge | |
2588 | * causes reconfiguration; we may be called | |
2589 | * with beacon transmission active. | |
2590 | */ | |
2591 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); | |
2592 | ||
2593 | error = ath_beacon_alloc(aphy, vif); | |
2594 | if (!error) | |
2595 | ath_beacon_config(sc, vif); | |
2596 | } | |
2597 | } | |
2598 | ||
2599 | /* Check for WLAN_CAPABILITY_PRIVACY ? */ | |
2600 | if ((avp->av_opmode != NL80211_IFTYPE_STATION)) { | |
2601 | for (i = 0; i < IEEE80211_WEP_NKID; i++) | |
2602 | if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i)) | |
2603 | ath9k_hw_keysetmac(sc->sc_ah, | |
2604 | (u16)i, | |
2605 | sc->curbssid); | |
2606 | } | |
2607 | ||
2608 | /* Only legacy IBSS for now */ | |
2609 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
2610 | ath_update_chainmask(sc, 0); | |
2611 | ||
8feceb67 | 2612 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
04bd4638 | 2613 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", |
8feceb67 VT |
2614 | bss_conf->use_short_preamble); |
2615 | if (bss_conf->use_short_preamble) | |
2616 | sc->sc_flags |= SC_OP_PREAMBLE_SHORT; | |
2617 | else | |
2618 | sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; | |
2619 | } | |
f078f209 | 2620 | |
8feceb67 | 2621 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
04bd4638 | 2622 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", |
8feceb67 VT |
2623 | bss_conf->use_cts_prot); |
2624 | if (bss_conf->use_cts_prot && | |
2625 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) | |
2626 | sc->sc_flags |= SC_OP_PROTECT_ENABLE; | |
2627 | else | |
2628 | sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; | |
2629 | } | |
f078f209 | 2630 | |
8feceb67 | 2631 | if (changed & BSS_CHANGED_ASSOC) { |
04bd4638 | 2632 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", |
8feceb67 | 2633 | bss_conf->assoc); |
5640b08e | 2634 | ath9k_bss_assoc_info(sc, vif, bss_conf); |
8feceb67 | 2635 | } |
141b38b6 | 2636 | |
57c4d7b4 JB |
2637 | /* |
2638 | * The HW TSF has to be reset when the beacon interval changes. | |
2639 | * We set the flag here, and ath_beacon_config_ap() would take this | |
2640 | * into account when it gets called through the subsequent | |
2641 | * config_interface() call - with IFCC_BEACON in the changed field. | |
2642 | */ | |
2643 | ||
2644 | if (changed & BSS_CHANGED_BEACON_INT) { | |
2645 | sc->sc_flags |= SC_OP_TSF_RESET; | |
2646 | sc->beacon_interval = bss_conf->beacon_int; | |
2647 | } | |
2648 | ||
141b38b6 | 2649 | mutex_unlock(&sc->mutex); |
8feceb67 | 2650 | } |
f078f209 | 2651 | |
8feceb67 VT |
2652 | static u64 ath9k_get_tsf(struct ieee80211_hw *hw) |
2653 | { | |
2654 | u64 tsf; | |
bce048d7 JM |
2655 | struct ath_wiphy *aphy = hw->priv; |
2656 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2657 | |
141b38b6 S |
2658 | mutex_lock(&sc->mutex); |
2659 | tsf = ath9k_hw_gettsf64(sc->sc_ah); | |
2660 | mutex_unlock(&sc->mutex); | |
f078f209 | 2661 | |
8feceb67 VT |
2662 | return tsf; |
2663 | } | |
f078f209 | 2664 | |
3b5d665b AF |
2665 | static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
2666 | { | |
bce048d7 JM |
2667 | struct ath_wiphy *aphy = hw->priv; |
2668 | struct ath_softc *sc = aphy->sc; | |
3b5d665b | 2669 | |
141b38b6 S |
2670 | mutex_lock(&sc->mutex); |
2671 | ath9k_hw_settsf64(sc->sc_ah, tsf); | |
2672 | mutex_unlock(&sc->mutex); | |
3b5d665b AF |
2673 | } |
2674 | ||
8feceb67 VT |
2675 | static void ath9k_reset_tsf(struct ieee80211_hw *hw) |
2676 | { | |
bce048d7 JM |
2677 | struct ath_wiphy *aphy = hw->priv; |
2678 | struct ath_softc *sc = aphy->sc; | |
c83be688 | 2679 | |
141b38b6 S |
2680 | mutex_lock(&sc->mutex); |
2681 | ath9k_hw_reset_tsf(sc->sc_ah); | |
2682 | mutex_unlock(&sc->mutex); | |
8feceb67 | 2683 | } |
f078f209 | 2684 | |
8feceb67 | 2685 | static int ath9k_ampdu_action(struct ieee80211_hw *hw, |
141b38b6 S |
2686 | enum ieee80211_ampdu_mlme_action action, |
2687 | struct ieee80211_sta *sta, | |
2688 | u16 tid, u16 *ssn) | |
8feceb67 | 2689 | { |
bce048d7 JM |
2690 | struct ath_wiphy *aphy = hw->priv; |
2691 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2692 | int ret = 0; |
f078f209 | 2693 | |
8feceb67 VT |
2694 | switch (action) { |
2695 | case IEEE80211_AMPDU_RX_START: | |
dca3edb8 S |
2696 | if (!(sc->sc_flags & SC_OP_RXAGGR)) |
2697 | ret = -ENOTSUPP; | |
8feceb67 VT |
2698 | break; |
2699 | case IEEE80211_AMPDU_RX_STOP: | |
8feceb67 VT |
2700 | break; |
2701 | case IEEE80211_AMPDU_TX_START: | |
b5aa9bf9 | 2702 | ret = ath_tx_aggr_start(sc, sta, tid, ssn); |
8feceb67 VT |
2703 | if (ret < 0) |
2704 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 2705 | "Unable to start TX aggregation\n"); |
8feceb67 | 2706 | else |
17741cdc | 2707 | ieee80211_start_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
8feceb67 VT |
2708 | break; |
2709 | case IEEE80211_AMPDU_TX_STOP: | |
b5aa9bf9 | 2710 | ret = ath_tx_aggr_stop(sc, sta, tid); |
8feceb67 VT |
2711 | if (ret < 0) |
2712 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 2713 | "Unable to stop TX aggregation\n"); |
f078f209 | 2714 | |
17741cdc | 2715 | ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
8feceb67 | 2716 | break; |
b1720231 | 2717 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
8469cdef S |
2718 | ath_tx_aggr_resume(sc, sta, tid); |
2719 | break; | |
8feceb67 | 2720 | default: |
04bd4638 | 2721 | DPRINTF(sc, ATH_DBG_FATAL, "Unknown AMPDU action\n"); |
8feceb67 VT |
2722 | } |
2723 | ||
2724 | return ret; | |
f078f209 LR |
2725 | } |
2726 | ||
0c98de65 S |
2727 | static void ath9k_sw_scan_start(struct ieee80211_hw *hw) |
2728 | { | |
bce048d7 JM |
2729 | struct ath_wiphy *aphy = hw->priv; |
2730 | struct ath_softc *sc = aphy->sc; | |
0c98de65 | 2731 | |
8089cc47 JM |
2732 | if (ath9k_wiphy_scanning(sc)) { |
2733 | printk(KERN_DEBUG "ath9k: Two wiphys trying to scan at the " | |
2734 | "same time\n"); | |
2735 | /* | |
2736 | * Do not allow the concurrent scanning state for now. This | |
2737 | * could be improved with scanning control moved into ath9k. | |
2738 | */ | |
2739 | return; | |
2740 | } | |
2741 | ||
2742 | aphy->state = ATH_WIPHY_SCAN; | |
2743 | ath9k_wiphy_pause_all_forced(sc, aphy); | |
2744 | ||
0c98de65 S |
2745 | mutex_lock(&sc->mutex); |
2746 | sc->sc_flags |= SC_OP_SCANNING; | |
2747 | mutex_unlock(&sc->mutex); | |
2748 | } | |
2749 | ||
2750 | static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) | |
2751 | { | |
bce048d7 JM |
2752 | struct ath_wiphy *aphy = hw->priv; |
2753 | struct ath_softc *sc = aphy->sc; | |
0c98de65 S |
2754 | |
2755 | mutex_lock(&sc->mutex); | |
8089cc47 | 2756 | aphy->state = ATH_WIPHY_ACTIVE; |
0c98de65 | 2757 | sc->sc_flags &= ~SC_OP_SCANNING; |
9c07a777 | 2758 | sc->sc_flags |= SC_OP_FULL_RESET; |
0c98de65 S |
2759 | mutex_unlock(&sc->mutex); |
2760 | } | |
2761 | ||
6baff7f9 | 2762 | struct ieee80211_ops ath9k_ops = { |
8feceb67 VT |
2763 | .tx = ath9k_tx, |
2764 | .start = ath9k_start, | |
2765 | .stop = ath9k_stop, | |
2766 | .add_interface = ath9k_add_interface, | |
2767 | .remove_interface = ath9k_remove_interface, | |
2768 | .config = ath9k_config, | |
8feceb67 | 2769 | .configure_filter = ath9k_configure_filter, |
8feceb67 VT |
2770 | .sta_notify = ath9k_sta_notify, |
2771 | .conf_tx = ath9k_conf_tx, | |
8feceb67 | 2772 | .bss_info_changed = ath9k_bss_info_changed, |
8feceb67 | 2773 | .set_key = ath9k_set_key, |
8feceb67 | 2774 | .get_tsf = ath9k_get_tsf, |
3b5d665b | 2775 | .set_tsf = ath9k_set_tsf, |
8feceb67 | 2776 | .reset_tsf = ath9k_reset_tsf, |
4233df6b | 2777 | .ampdu_action = ath9k_ampdu_action, |
0c98de65 S |
2778 | .sw_scan_start = ath9k_sw_scan_start, |
2779 | .sw_scan_complete = ath9k_sw_scan_complete, | |
8feceb67 VT |
2780 | }; |
2781 | ||
392dff83 BP |
2782 | static struct { |
2783 | u32 version; | |
2784 | const char * name; | |
2785 | } ath_mac_bb_names[] = { | |
2786 | { AR_SREV_VERSION_5416_PCI, "5416" }, | |
2787 | { AR_SREV_VERSION_5416_PCIE, "5418" }, | |
2788 | { AR_SREV_VERSION_9100, "9100" }, | |
2789 | { AR_SREV_VERSION_9160, "9160" }, | |
2790 | { AR_SREV_VERSION_9280, "9280" }, | |
2791 | { AR_SREV_VERSION_9285, "9285" } | |
2792 | }; | |
2793 | ||
2794 | static struct { | |
2795 | u16 version; | |
2796 | const char * name; | |
2797 | } ath_rf_names[] = { | |
2798 | { 0, "5133" }, | |
2799 | { AR_RAD5133_SREV_MAJOR, "5133" }, | |
2800 | { AR_RAD5122_SREV_MAJOR, "5122" }, | |
2801 | { AR_RAD2133_SREV_MAJOR, "2133" }, | |
2802 | { AR_RAD2122_SREV_MAJOR, "2122" } | |
2803 | }; | |
2804 | ||
2805 | /* | |
2806 | * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown. | |
2807 | */ | |
6baff7f9 | 2808 | const char * |
392dff83 BP |
2809 | ath_mac_bb_name(u32 mac_bb_version) |
2810 | { | |
2811 | int i; | |
2812 | ||
2813 | for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) { | |
2814 | if (ath_mac_bb_names[i].version == mac_bb_version) { | |
2815 | return ath_mac_bb_names[i].name; | |
2816 | } | |
2817 | } | |
2818 | ||
2819 | return "????"; | |
2820 | } | |
2821 | ||
2822 | /* | |
2823 | * Return the RF name. "????" is returned if the RF is unknown. | |
2824 | */ | |
6baff7f9 | 2825 | const char * |
392dff83 BP |
2826 | ath_rf_name(u16 rf_version) |
2827 | { | |
2828 | int i; | |
2829 | ||
2830 | for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) { | |
2831 | if (ath_rf_names[i].version == rf_version) { | |
2832 | return ath_rf_names[i].name; | |
2833 | } | |
2834 | } | |
2835 | ||
2836 | return "????"; | |
2837 | } | |
2838 | ||
6baff7f9 | 2839 | static int __init ath9k_init(void) |
f078f209 | 2840 | { |
ca8a8560 VT |
2841 | int error; |
2842 | ||
ca8a8560 VT |
2843 | /* Register rate control algorithm */ |
2844 | error = ath_rate_control_register(); | |
2845 | if (error != 0) { | |
2846 | printk(KERN_ERR | |
b51bb3cd LR |
2847 | "ath9k: Unable to register rate control " |
2848 | "algorithm: %d\n", | |
ca8a8560 | 2849 | error); |
6baff7f9 | 2850 | goto err_out; |
ca8a8560 VT |
2851 | } |
2852 | ||
19d8bc22 GJ |
2853 | error = ath9k_debug_create_root(); |
2854 | if (error) { | |
2855 | printk(KERN_ERR | |
2856 | "ath9k: Unable to create debugfs root: %d\n", | |
2857 | error); | |
2858 | goto err_rate_unregister; | |
2859 | } | |
2860 | ||
6baff7f9 GJ |
2861 | error = ath_pci_init(); |
2862 | if (error < 0) { | |
f078f209 | 2863 | printk(KERN_ERR |
b51bb3cd | 2864 | "ath9k: No PCI devices found, driver not installed.\n"); |
6baff7f9 | 2865 | error = -ENODEV; |
19d8bc22 | 2866 | goto err_remove_root; |
f078f209 LR |
2867 | } |
2868 | ||
09329d37 GJ |
2869 | error = ath_ahb_init(); |
2870 | if (error < 0) { | |
2871 | error = -ENODEV; | |
2872 | goto err_pci_exit; | |
2873 | } | |
2874 | ||
f078f209 | 2875 | return 0; |
6baff7f9 | 2876 | |
09329d37 GJ |
2877 | err_pci_exit: |
2878 | ath_pci_exit(); | |
2879 | ||
19d8bc22 GJ |
2880 | err_remove_root: |
2881 | ath9k_debug_remove_root(); | |
6baff7f9 GJ |
2882 | err_rate_unregister: |
2883 | ath_rate_control_unregister(); | |
2884 | err_out: | |
2885 | return error; | |
f078f209 | 2886 | } |
6baff7f9 | 2887 | module_init(ath9k_init); |
f078f209 | 2888 | |
6baff7f9 | 2889 | static void __exit ath9k_exit(void) |
f078f209 | 2890 | { |
09329d37 | 2891 | ath_ahb_exit(); |
6baff7f9 | 2892 | ath_pci_exit(); |
19d8bc22 | 2893 | ath9k_debug_remove_root(); |
ca8a8560 | 2894 | ath_rate_control_unregister(); |
04bd4638 | 2895 | printk(KERN_INFO "%s: Driver unloaded\n", dev_info); |
f078f209 | 2896 | } |
6baff7f9 | 2897 | module_exit(ath9k_exit); |