Commit | Line | Data |
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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 | { | |
192 | struct ath_rate_table *rate_table = NULL; | |
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) " | |
283 | "reset status %u\n", | |
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 | ||
290 | sc->sc_flags &= ~SC_OP_CHAINMASK_UPDATE; | |
291 | sc->sc_flags &= ~SC_OP_FULL_RESET; | |
292 | ||
293 | if (ath_startrecv(sc) != 0) { | |
294 | DPRINTF(sc, ATH_DBG_FATAL, | |
295 | "Unable to restart recv logic\n"); | |
296 | return -EIO; | |
297 | } | |
298 | ||
299 | ath_cache_conf_rate(sc, &hw->conf); | |
300 | ath_update_txpow(sc); | |
17d7904d | 301 | ath9k_hw_set_interrupts(ah, sc->imask); |
3cbb5dd7 | 302 | ath9k_ps_restore(sc); |
ff37e337 S |
303 | return 0; |
304 | } | |
305 | ||
306 | /* | |
307 | * This routine performs the periodic noise floor calibration function | |
308 | * that is used to adjust and optimize the chip performance. This | |
309 | * takes environmental changes (location, temperature) into account. | |
310 | * When the task is complete, it reschedules itself depending on the | |
311 | * appropriate interval that was calculated. | |
312 | */ | |
313 | static void ath_ani_calibrate(unsigned long data) | |
314 | { | |
20977d3e S |
315 | struct ath_softc *sc = (struct ath_softc *)data; |
316 | struct ath_hw *ah = sc->sc_ah; | |
ff37e337 S |
317 | bool longcal = false; |
318 | bool shortcal = false; | |
319 | bool aniflag = false; | |
320 | unsigned int timestamp = jiffies_to_msecs(jiffies); | |
20977d3e | 321 | u32 cal_interval, short_cal_interval; |
ff37e337 | 322 | |
20977d3e S |
323 | short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? |
324 | ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; | |
ff37e337 S |
325 | |
326 | /* | |
327 | * don't calibrate when we're scanning. | |
328 | * we are most likely not on our home channel. | |
329 | */ | |
0c98de65 | 330 | if (sc->sc_flags & SC_OP_SCANNING) |
20977d3e | 331 | goto set_timer; |
ff37e337 S |
332 | |
333 | /* Long calibration runs independently of short calibration. */ | |
17d7904d | 334 | if ((timestamp - sc->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) { |
ff37e337 | 335 | longcal = true; |
04bd4638 | 336 | DPRINTF(sc, ATH_DBG_ANI, "longcal @%lu\n", jiffies); |
17d7904d | 337 | sc->ani.longcal_timer = timestamp; |
ff37e337 S |
338 | } |
339 | ||
17d7904d S |
340 | /* Short calibration applies only while caldone is false */ |
341 | if (!sc->ani.caldone) { | |
20977d3e | 342 | if ((timestamp - sc->ani.shortcal_timer) >= short_cal_interval) { |
ff37e337 | 343 | shortcal = true; |
04bd4638 | 344 | DPRINTF(sc, ATH_DBG_ANI, "shortcal @%lu\n", jiffies); |
17d7904d S |
345 | sc->ani.shortcal_timer = timestamp; |
346 | sc->ani.resetcal_timer = timestamp; | |
ff37e337 S |
347 | } |
348 | } else { | |
17d7904d | 349 | if ((timestamp - sc->ani.resetcal_timer) >= |
ff37e337 | 350 | ATH_RESTART_CALINTERVAL) { |
17d7904d S |
351 | sc->ani.caldone = ath9k_hw_reset_calvalid(ah); |
352 | if (sc->ani.caldone) | |
353 | sc->ani.resetcal_timer = timestamp; | |
ff37e337 S |
354 | } |
355 | } | |
356 | ||
357 | /* Verify whether we must check ANI */ | |
20977d3e | 358 | if ((timestamp - sc->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) { |
ff37e337 | 359 | aniflag = true; |
17d7904d | 360 | sc->ani.checkani_timer = timestamp; |
ff37e337 S |
361 | } |
362 | ||
363 | /* Skip all processing if there's nothing to do. */ | |
364 | if (longcal || shortcal || aniflag) { | |
365 | /* Call ANI routine if necessary */ | |
366 | if (aniflag) | |
20977d3e | 367 | ath9k_hw_ani_monitor(ah, &sc->nodestats, ah->curchan); |
ff37e337 S |
368 | |
369 | /* Perform calibration if necessary */ | |
370 | if (longcal || shortcal) { | |
371 | bool iscaldone = false; | |
372 | ||
2660b81a | 373 | if (ath9k_hw_calibrate(ah, ah->curchan, |
17d7904d | 374 | sc->rx_chainmask, longcal, |
ff37e337 S |
375 | &iscaldone)) { |
376 | if (longcal) | |
17d7904d | 377 | sc->ani.noise_floor = |
ff37e337 | 378 | ath9k_hw_getchan_noise(ah, |
2660b81a | 379 | ah->curchan); |
ff37e337 S |
380 | |
381 | DPRINTF(sc, ATH_DBG_ANI, | |
04bd4638 | 382 | "calibrate chan %u/%x nf: %d\n", |
2660b81a S |
383 | ah->curchan->channel, |
384 | ah->curchan->channelFlags, | |
17d7904d | 385 | sc->ani.noise_floor); |
ff37e337 S |
386 | } else { |
387 | DPRINTF(sc, ATH_DBG_ANY, | |
04bd4638 | 388 | "calibrate chan %u/%x failed\n", |
2660b81a S |
389 | ah->curchan->channel, |
390 | ah->curchan->channelFlags); | |
ff37e337 | 391 | } |
17d7904d | 392 | sc->ani.caldone = iscaldone; |
ff37e337 S |
393 | } |
394 | } | |
395 | ||
20977d3e | 396 | set_timer: |
ff37e337 S |
397 | /* |
398 | * Set timer interval based on previous results. | |
399 | * The interval must be the shortest necessary to satisfy ANI, | |
400 | * short calibration and long calibration. | |
401 | */ | |
aac9207e | 402 | cal_interval = ATH_LONG_CALINTERVAL; |
2660b81a | 403 | if (sc->sc_ah->config.enable_ani) |
aac9207e | 404 | cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL); |
17d7904d | 405 | if (!sc->ani.caldone) |
20977d3e | 406 | cal_interval = min(cal_interval, (u32)short_cal_interval); |
ff37e337 | 407 | |
17d7904d | 408 | mod_timer(&sc->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); |
ff37e337 S |
409 | } |
410 | ||
411 | /* | |
412 | * Update tx/rx chainmask. For legacy association, | |
413 | * hard code chainmask to 1x1, for 11n association, use | |
c97c92d9 VT |
414 | * the chainmask configuration, for bt coexistence, use |
415 | * the chainmask configuration even in legacy mode. | |
ff37e337 | 416 | */ |
0e2dedf9 | 417 | void ath_update_chainmask(struct ath_softc *sc, int is_ht) |
ff37e337 S |
418 | { |
419 | sc->sc_flags |= SC_OP_CHAINMASK_UPDATE; | |
c97c92d9 | 420 | if (is_ht || |
2660b81a S |
421 | (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX)) { |
422 | sc->tx_chainmask = sc->sc_ah->caps.tx_chainmask; | |
423 | sc->rx_chainmask = sc->sc_ah->caps.rx_chainmask; | |
ff37e337 | 424 | } else { |
17d7904d S |
425 | sc->tx_chainmask = 1; |
426 | sc->rx_chainmask = 1; | |
ff37e337 S |
427 | } |
428 | ||
04bd4638 | 429 | DPRINTF(sc, ATH_DBG_CONFIG, "tx chmask: %d, rx chmask: %d\n", |
17d7904d | 430 | sc->tx_chainmask, sc->rx_chainmask); |
ff37e337 S |
431 | } |
432 | ||
433 | static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) | |
434 | { | |
435 | struct ath_node *an; | |
436 | ||
437 | an = (struct ath_node *)sta->drv_priv; | |
438 | ||
439 | if (sc->sc_flags & SC_OP_TXAGGR) | |
440 | ath_tx_node_init(sc, an); | |
441 | ||
442 | an->maxampdu = 1 << (IEEE80211_HTCAP_MAXRXAMPDU_FACTOR + | |
443 | sta->ht_cap.ampdu_factor); | |
444 | an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density); | |
445 | } | |
446 | ||
447 | static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) | |
448 | { | |
449 | struct ath_node *an = (struct ath_node *)sta->drv_priv; | |
450 | ||
451 | if (sc->sc_flags & SC_OP_TXAGGR) | |
452 | ath_tx_node_cleanup(sc, an); | |
453 | } | |
454 | ||
455 | static void ath9k_tasklet(unsigned long data) | |
456 | { | |
457 | struct ath_softc *sc = (struct ath_softc *)data; | |
17d7904d | 458 | u32 status = sc->intrstatus; |
ff37e337 S |
459 | |
460 | if (status & ATH9K_INT_FATAL) { | |
461 | /* need a chip reset */ | |
462 | ath_reset(sc, false); | |
463 | return; | |
464 | } else { | |
465 | ||
466 | if (status & | |
467 | (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN)) { | |
b77f483f | 468 | spin_lock_bh(&sc->rx.rxflushlock); |
ff37e337 | 469 | ath_rx_tasklet(sc, 0); |
b77f483f | 470 | spin_unlock_bh(&sc->rx.rxflushlock); |
ff37e337 S |
471 | } |
472 | /* XXX: optimize this */ | |
473 | if (status & ATH9K_INT_TX) | |
474 | ath_tx_tasklet(sc); | |
475 | } | |
476 | ||
477 | /* re-enable hardware interrupt */ | |
17d7904d | 478 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
ff37e337 S |
479 | } |
480 | ||
6baff7f9 | 481 | irqreturn_t ath_isr(int irq, void *dev) |
ff37e337 S |
482 | { |
483 | struct ath_softc *sc = dev; | |
cbe61d8a | 484 | struct ath_hw *ah = sc->sc_ah; |
ff37e337 S |
485 | enum ath9k_int status; |
486 | bool sched = false; | |
487 | ||
488 | do { | |
489 | if (sc->sc_flags & SC_OP_INVALID) { | |
490 | /* | |
491 | * The hardware is not ready/present, don't | |
492 | * touch anything. Note this can happen early | |
493 | * on if the IRQ is shared. | |
494 | */ | |
495 | return IRQ_NONE; | |
496 | } | |
497 | if (!ath9k_hw_intrpend(ah)) { /* shared irq, not for us */ | |
498 | return IRQ_NONE; | |
499 | } | |
500 | ||
501 | /* | |
502 | * Figure out the reason(s) for the interrupt. Note | |
503 | * that the hal returns a pseudo-ISR that may include | |
504 | * bits we haven't explicitly enabled so we mask the | |
505 | * value to insure we only process bits we requested. | |
506 | */ | |
507 | ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ | |
508 | ||
17d7904d | 509 | status &= sc->imask; /* discard unasked-for bits */ |
ff37e337 S |
510 | |
511 | /* | |
512 | * If there are no status bits set, then this interrupt was not | |
513 | * for me (should have been caught above). | |
514 | */ | |
515 | if (!status) | |
516 | return IRQ_NONE; | |
517 | ||
17d7904d | 518 | sc->intrstatus = status; |
541d8dd5 | 519 | ath9k_ps_wakeup(sc); |
ff37e337 S |
520 | |
521 | if (status & ATH9K_INT_FATAL) { | |
522 | /* need a chip reset */ | |
523 | sched = true; | |
524 | } else if (status & ATH9K_INT_RXORN) { | |
525 | /* need a chip reset */ | |
526 | sched = true; | |
527 | } else { | |
528 | if (status & ATH9K_INT_SWBA) { | |
529 | /* schedule a tasklet for beacon handling */ | |
530 | tasklet_schedule(&sc->bcon_tasklet); | |
531 | } | |
532 | if (status & ATH9K_INT_RXEOL) { | |
533 | /* | |
534 | * NB: the hardware should re-read the link when | |
535 | * RXE bit is written, but it doesn't work | |
536 | * at least on older hardware revs. | |
537 | */ | |
538 | sched = true; | |
539 | } | |
540 | ||
541 | if (status & ATH9K_INT_TXURN) | |
542 | /* bump tx trigger level */ | |
543 | ath9k_hw_updatetxtriglevel(ah, true); | |
544 | /* XXX: optimize this */ | |
545 | if (status & ATH9K_INT_RX) | |
546 | sched = true; | |
547 | if (status & ATH9K_INT_TX) | |
548 | sched = true; | |
549 | if (status & ATH9K_INT_BMISS) | |
550 | sched = true; | |
551 | /* carrier sense timeout */ | |
552 | if (status & ATH9K_INT_CST) | |
553 | sched = true; | |
554 | if (status & ATH9K_INT_MIB) { | |
555 | /* | |
556 | * Disable interrupts until we service the MIB | |
557 | * interrupt; otherwise it will continue to | |
558 | * fire. | |
559 | */ | |
560 | ath9k_hw_set_interrupts(ah, 0); | |
561 | /* | |
562 | * Let the hal handle the event. We assume | |
563 | * it will clear whatever condition caused | |
564 | * the interrupt. | |
565 | */ | |
17d7904d S |
566 | ath9k_hw_procmibevent(ah, &sc->nodestats); |
567 | ath9k_hw_set_interrupts(ah, sc->imask); | |
ff37e337 S |
568 | } |
569 | if (status & ATH9K_INT_TIM_TIMER) { | |
2660b81a | 570 | if (!(ah->caps.hw_caps & |
ff37e337 S |
571 | ATH9K_HW_CAP_AUTOSLEEP)) { |
572 | /* Clear RxAbort bit so that we can | |
573 | * receive frames */ | |
3cbb5dd7 | 574 | ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); |
ff37e337 S |
575 | ath9k_hw_setrxabort(ah, 0); |
576 | sched = true; | |
3cbb5dd7 | 577 | sc->sc_flags |= SC_OP_WAIT_FOR_BEACON; |
ff37e337 S |
578 | } |
579 | } | |
4af9cf4f S |
580 | if (status & ATH9K_INT_TSFOOR) { |
581 | /* FIXME: Handle this interrupt for power save */ | |
582 | sched = true; | |
583 | } | |
ff37e337 | 584 | } |
541d8dd5 | 585 | ath9k_ps_restore(sc); |
ff37e337 S |
586 | } while (0); |
587 | ||
817e11de S |
588 | ath_debug_stat_interrupt(sc, status); |
589 | ||
ff37e337 S |
590 | if (sched) { |
591 | /* turn off every interrupt except SWBA */ | |
17d7904d | 592 | ath9k_hw_set_interrupts(ah, (sc->imask & ATH9K_INT_SWBA)); |
ff37e337 S |
593 | tasklet_schedule(&sc->intr_tq); |
594 | } | |
595 | ||
596 | return IRQ_HANDLED; | |
597 | } | |
598 | ||
f078f209 | 599 | static u32 ath_get_extchanmode(struct ath_softc *sc, |
99405f93 | 600 | struct ieee80211_channel *chan, |
094d05dc | 601 | enum nl80211_channel_type channel_type) |
f078f209 LR |
602 | { |
603 | u32 chanmode = 0; | |
f078f209 LR |
604 | |
605 | switch (chan->band) { | |
606 | case IEEE80211_BAND_2GHZ: | |
094d05dc S |
607 | switch(channel_type) { |
608 | case NL80211_CHAN_NO_HT: | |
609 | case NL80211_CHAN_HT20: | |
f078f209 | 610 | chanmode = CHANNEL_G_HT20; |
094d05dc S |
611 | break; |
612 | case NL80211_CHAN_HT40PLUS: | |
f078f209 | 613 | chanmode = CHANNEL_G_HT40PLUS; |
094d05dc S |
614 | break; |
615 | case NL80211_CHAN_HT40MINUS: | |
f078f209 | 616 | chanmode = CHANNEL_G_HT40MINUS; |
094d05dc S |
617 | break; |
618 | } | |
f078f209 LR |
619 | break; |
620 | case IEEE80211_BAND_5GHZ: | |
094d05dc S |
621 | switch(channel_type) { |
622 | case NL80211_CHAN_NO_HT: | |
623 | case NL80211_CHAN_HT20: | |
f078f209 | 624 | chanmode = CHANNEL_A_HT20; |
094d05dc S |
625 | break; |
626 | case NL80211_CHAN_HT40PLUS: | |
f078f209 | 627 | chanmode = CHANNEL_A_HT40PLUS; |
094d05dc S |
628 | break; |
629 | case NL80211_CHAN_HT40MINUS: | |
f078f209 | 630 | chanmode = CHANNEL_A_HT40MINUS; |
094d05dc S |
631 | break; |
632 | } | |
f078f209 LR |
633 | break; |
634 | default: | |
635 | break; | |
636 | } | |
637 | ||
638 | return chanmode; | |
639 | } | |
640 | ||
6ace2891 | 641 | static int ath_setkey_tkip(struct ath_softc *sc, u16 keyix, const u8 *key, |
3f53dd64 JM |
642 | struct ath9k_keyval *hk, const u8 *addr, |
643 | bool authenticator) | |
f078f209 | 644 | { |
6ace2891 JM |
645 | const u8 *key_rxmic; |
646 | const u8 *key_txmic; | |
f078f209 | 647 | |
6ace2891 JM |
648 | key_txmic = key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY; |
649 | key_rxmic = key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY; | |
f078f209 LR |
650 | |
651 | if (addr == NULL) { | |
d216aaa6 JM |
652 | /* |
653 | * Group key installation - only two key cache entries are used | |
654 | * regardless of splitmic capability since group key is only | |
655 | * used either for TX or RX. | |
656 | */ | |
3f53dd64 JM |
657 | if (authenticator) { |
658 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); | |
659 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_mic)); | |
660 | } else { | |
661 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); | |
662 | memcpy(hk->kv_txmic, key_rxmic, sizeof(hk->kv_mic)); | |
663 | } | |
d216aaa6 | 664 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr); |
f078f209 | 665 | } |
17d7904d | 666 | if (!sc->splitmic) { |
d216aaa6 | 667 | /* TX and RX keys share the same key cache entry. */ |
f078f209 LR |
668 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); |
669 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic)); | |
d216aaa6 | 670 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr); |
f078f209 | 671 | } |
d216aaa6 JM |
672 | |
673 | /* Separate key cache entries for TX and RX */ | |
674 | ||
675 | /* TX key goes at first index, RX key at +32. */ | |
f078f209 | 676 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); |
d216aaa6 JM |
677 | if (!ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, NULL)) { |
678 | /* TX MIC entry failed. No need to proceed further */ | |
f078f209 | 679 | DPRINTF(sc, ATH_DBG_KEYCACHE, |
04bd4638 | 680 | "Setting TX MIC Key Failed\n"); |
f078f209 LR |
681 | return 0; |
682 | } | |
683 | ||
684 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); | |
685 | /* XXX delete tx key on failure? */ | |
d216aaa6 | 686 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix + 32, hk, addr); |
6ace2891 JM |
687 | } |
688 | ||
689 | static int ath_reserve_key_cache_slot_tkip(struct ath_softc *sc) | |
690 | { | |
691 | int i; | |
692 | ||
17d7904d S |
693 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { |
694 | if (test_bit(i, sc->keymap) || | |
695 | test_bit(i + 64, sc->keymap)) | |
6ace2891 | 696 | continue; /* At least one part of TKIP key allocated */ |
17d7904d S |
697 | if (sc->splitmic && |
698 | (test_bit(i + 32, sc->keymap) || | |
699 | test_bit(i + 64 + 32, sc->keymap))) | |
6ace2891 JM |
700 | continue; /* At least one part of TKIP key allocated */ |
701 | ||
702 | /* Found a free slot for a TKIP key */ | |
703 | return i; | |
704 | } | |
705 | return -1; | |
706 | } | |
707 | ||
708 | static int ath_reserve_key_cache_slot(struct ath_softc *sc) | |
709 | { | |
710 | int i; | |
711 | ||
712 | /* First, try to find slots that would not be available for TKIP. */ | |
17d7904d S |
713 | if (sc->splitmic) { |
714 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 4; i++) { | |
715 | if (!test_bit(i, sc->keymap) && | |
716 | (test_bit(i + 32, sc->keymap) || | |
717 | test_bit(i + 64, sc->keymap) || | |
718 | test_bit(i + 64 + 32, sc->keymap))) | |
6ace2891 | 719 | return i; |
17d7904d S |
720 | if (!test_bit(i + 32, sc->keymap) && |
721 | (test_bit(i, sc->keymap) || | |
722 | test_bit(i + 64, sc->keymap) || | |
723 | test_bit(i + 64 + 32, sc->keymap))) | |
6ace2891 | 724 | return i + 32; |
17d7904d S |
725 | if (!test_bit(i + 64, sc->keymap) && |
726 | (test_bit(i , sc->keymap) || | |
727 | test_bit(i + 32, sc->keymap) || | |
728 | test_bit(i + 64 + 32, sc->keymap))) | |
ea612132 | 729 | return i + 64; |
17d7904d S |
730 | if (!test_bit(i + 64 + 32, sc->keymap) && |
731 | (test_bit(i, sc->keymap) || | |
732 | test_bit(i + 32, sc->keymap) || | |
733 | test_bit(i + 64, sc->keymap))) | |
ea612132 | 734 | return i + 64 + 32; |
6ace2891 JM |
735 | } |
736 | } else { | |
17d7904d S |
737 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { |
738 | if (!test_bit(i, sc->keymap) && | |
739 | test_bit(i + 64, sc->keymap)) | |
6ace2891 | 740 | return i; |
17d7904d S |
741 | if (test_bit(i, sc->keymap) && |
742 | !test_bit(i + 64, sc->keymap)) | |
6ace2891 JM |
743 | return i + 64; |
744 | } | |
745 | } | |
746 | ||
747 | /* No partially used TKIP slots, pick any available slot */ | |
17d7904d | 748 | for (i = IEEE80211_WEP_NKID; i < sc->keymax; i++) { |
be2864cf JM |
749 | /* Do not allow slots that could be needed for TKIP group keys |
750 | * to be used. This limitation could be removed if we know that | |
751 | * TKIP will not be used. */ | |
752 | if (i >= 64 && i < 64 + IEEE80211_WEP_NKID) | |
753 | continue; | |
17d7904d | 754 | if (sc->splitmic) { |
be2864cf JM |
755 | if (i >= 32 && i < 32 + IEEE80211_WEP_NKID) |
756 | continue; | |
757 | if (i >= 64 + 32 && i < 64 + 32 + IEEE80211_WEP_NKID) | |
758 | continue; | |
759 | } | |
760 | ||
17d7904d | 761 | if (!test_bit(i, sc->keymap)) |
6ace2891 JM |
762 | return i; /* Found a free slot for a key */ |
763 | } | |
764 | ||
765 | /* No free slot found */ | |
766 | return -1; | |
f078f209 LR |
767 | } |
768 | ||
769 | static int ath_key_config(struct ath_softc *sc, | |
3f53dd64 | 770 | struct ieee80211_vif *vif, |
dc822b5d | 771 | struct ieee80211_sta *sta, |
f078f209 LR |
772 | struct ieee80211_key_conf *key) |
773 | { | |
f078f209 LR |
774 | struct ath9k_keyval hk; |
775 | const u8 *mac = NULL; | |
776 | int ret = 0; | |
6ace2891 | 777 | int idx; |
f078f209 LR |
778 | |
779 | memset(&hk, 0, sizeof(hk)); | |
780 | ||
781 | switch (key->alg) { | |
782 | case ALG_WEP: | |
783 | hk.kv_type = ATH9K_CIPHER_WEP; | |
784 | break; | |
785 | case ALG_TKIP: | |
786 | hk.kv_type = ATH9K_CIPHER_TKIP; | |
787 | break; | |
788 | case ALG_CCMP: | |
789 | hk.kv_type = ATH9K_CIPHER_AES_CCM; | |
790 | break; | |
791 | default: | |
ca470b29 | 792 | return -EOPNOTSUPP; |
f078f209 LR |
793 | } |
794 | ||
6ace2891 | 795 | hk.kv_len = key->keylen; |
f078f209 LR |
796 | memcpy(hk.kv_val, key->key, key->keylen); |
797 | ||
6ace2891 JM |
798 | if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { |
799 | /* For now, use the default keys for broadcast keys. This may | |
800 | * need to change with virtual interfaces. */ | |
801 | idx = key->keyidx; | |
802 | } else if (key->keyidx) { | |
dc822b5d JB |
803 | if (WARN_ON(!sta)) |
804 | return -EOPNOTSUPP; | |
805 | mac = sta->addr; | |
806 | ||
6ace2891 JM |
807 | if (vif->type != NL80211_IFTYPE_AP) { |
808 | /* Only keyidx 0 should be used with unicast key, but | |
809 | * allow this for client mode for now. */ | |
810 | idx = key->keyidx; | |
811 | } else | |
812 | return -EIO; | |
f078f209 | 813 | } else { |
dc822b5d JB |
814 | if (WARN_ON(!sta)) |
815 | return -EOPNOTSUPP; | |
816 | mac = sta->addr; | |
817 | ||
6ace2891 JM |
818 | if (key->alg == ALG_TKIP) |
819 | idx = ath_reserve_key_cache_slot_tkip(sc); | |
820 | else | |
821 | idx = ath_reserve_key_cache_slot(sc); | |
822 | if (idx < 0) | |
ca470b29 | 823 | return -ENOSPC; /* no free key cache entries */ |
f078f209 LR |
824 | } |
825 | ||
826 | if (key->alg == ALG_TKIP) | |
3f53dd64 JM |
827 | ret = ath_setkey_tkip(sc, idx, key->key, &hk, mac, |
828 | vif->type == NL80211_IFTYPE_AP); | |
f078f209 | 829 | else |
d216aaa6 | 830 | ret = ath9k_hw_set_keycache_entry(sc->sc_ah, idx, &hk, mac); |
f078f209 LR |
831 | |
832 | if (!ret) | |
833 | return -EIO; | |
834 | ||
17d7904d | 835 | set_bit(idx, sc->keymap); |
6ace2891 | 836 | if (key->alg == ALG_TKIP) { |
17d7904d S |
837 | set_bit(idx + 64, sc->keymap); |
838 | if (sc->splitmic) { | |
839 | set_bit(idx + 32, sc->keymap); | |
840 | set_bit(idx + 64 + 32, sc->keymap); | |
6ace2891 JM |
841 | } |
842 | } | |
843 | ||
844 | return idx; | |
f078f209 LR |
845 | } |
846 | ||
847 | static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key) | |
848 | { | |
6ace2891 JM |
849 | ath9k_hw_keyreset(sc->sc_ah, key->hw_key_idx); |
850 | if (key->hw_key_idx < IEEE80211_WEP_NKID) | |
851 | return; | |
852 | ||
17d7904d | 853 | clear_bit(key->hw_key_idx, sc->keymap); |
6ace2891 JM |
854 | if (key->alg != ALG_TKIP) |
855 | return; | |
f078f209 | 856 | |
17d7904d S |
857 | clear_bit(key->hw_key_idx + 64, sc->keymap); |
858 | if (sc->splitmic) { | |
859 | clear_bit(key->hw_key_idx + 32, sc->keymap); | |
860 | clear_bit(key->hw_key_idx + 64 + 32, sc->keymap); | |
6ace2891 | 861 | } |
f078f209 LR |
862 | } |
863 | ||
eb2599ca S |
864 | static void setup_ht_cap(struct ath_softc *sc, |
865 | struct ieee80211_sta_ht_cap *ht_info) | |
f078f209 | 866 | { |
60653678 S |
867 | #define ATH9K_HT_CAP_MAXRXAMPDU_65536 0x3 /* 2 ^ 16 */ |
868 | #define ATH9K_HT_CAP_MPDUDENSITY_8 0x6 /* 8 usec */ | |
f078f209 | 869 | |
d9fe60de JB |
870 | ht_info->ht_supported = true; |
871 | ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
872 | IEEE80211_HT_CAP_SM_PS | | |
873 | IEEE80211_HT_CAP_SGI_40 | | |
874 | IEEE80211_HT_CAP_DSSSCCK40; | |
f078f209 | 875 | |
60653678 S |
876 | ht_info->ampdu_factor = ATH9K_HT_CAP_MAXRXAMPDU_65536; |
877 | ht_info->ampdu_density = ATH9K_HT_CAP_MPDUDENSITY_8; | |
eb2599ca | 878 | |
d9fe60de JB |
879 | /* set up supported mcs set */ |
880 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); | |
eb2599ca | 881 | |
17d7904d | 882 | switch(sc->rx_chainmask) { |
eb2599ca S |
883 | case 1: |
884 | ht_info->mcs.rx_mask[0] = 0xff; | |
885 | break; | |
3c457265 | 886 | case 3: |
eb2599ca S |
887 | case 5: |
888 | case 7: | |
889 | default: | |
890 | ht_info->mcs.rx_mask[0] = 0xff; | |
891 | ht_info->mcs.rx_mask[1] = 0xff; | |
892 | break; | |
893 | } | |
894 | ||
d9fe60de | 895 | ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; |
f078f209 LR |
896 | } |
897 | ||
8feceb67 | 898 | static void ath9k_bss_assoc_info(struct ath_softc *sc, |
5640b08e | 899 | struct ieee80211_vif *vif, |
8feceb67 | 900 | struct ieee80211_bss_conf *bss_conf) |
f078f209 | 901 | { |
17d7904d | 902 | struct ath_vif *avp = (void *)vif->drv_priv; |
f078f209 | 903 | |
8feceb67 | 904 | if (bss_conf->assoc) { |
094d05dc | 905 | DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n", |
17d7904d | 906 | bss_conf->aid, sc->curbssid); |
f078f209 | 907 | |
8feceb67 | 908 | /* New association, store aid */ |
d97809db | 909 | if (avp->av_opmode == NL80211_IFTYPE_STATION) { |
17d7904d | 910 | sc->curaid = bss_conf->aid; |
ba52da58 | 911 | ath9k_hw_write_associd(sc); |
8feceb67 | 912 | } |
f078f209 | 913 | |
8feceb67 | 914 | /* Configure the beacon */ |
2c3db3d5 | 915 | ath_beacon_config(sc, vif); |
f078f209 | 916 | |
8feceb67 | 917 | /* Reset rssi stats */ |
17d7904d S |
918 | sc->nodestats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER; |
919 | sc->nodestats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER; | |
920 | sc->nodestats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER; | |
921 | sc->nodestats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER; | |
f078f209 | 922 | |
6f255425 | 923 | /* Start ANI */ |
17d7904d | 924 | mod_timer(&sc->ani.timer, |
20977d3e | 925 | jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); |
8feceb67 | 926 | } else { |
04bd4638 | 927 | DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info DISSOC\n"); |
17d7904d | 928 | sc->curaid = 0; |
f078f209 | 929 | } |
8feceb67 | 930 | } |
f078f209 | 931 | |
8feceb67 VT |
932 | /********************************/ |
933 | /* LED functions */ | |
934 | /********************************/ | |
f078f209 | 935 | |
f2bffa7e VT |
936 | static void ath_led_blink_work(struct work_struct *work) |
937 | { | |
938 | struct ath_softc *sc = container_of(work, struct ath_softc, | |
939 | ath_led_blink_work.work); | |
940 | ||
941 | if (!(sc->sc_flags & SC_OP_LED_ASSOCIATED)) | |
942 | return; | |
85067c06 VT |
943 | |
944 | if ((sc->led_on_duration == ATH_LED_ON_DURATION_IDLE) || | |
945 | (sc->led_off_duration == ATH_LED_OFF_DURATION_IDLE)) | |
946 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0); | |
947 | else | |
948 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, | |
949 | (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0); | |
f2bffa7e VT |
950 | |
951 | queue_delayed_work(sc->hw->workqueue, &sc->ath_led_blink_work, | |
952 | (sc->sc_flags & SC_OP_LED_ON) ? | |
953 | msecs_to_jiffies(sc->led_off_duration) : | |
954 | msecs_to_jiffies(sc->led_on_duration)); | |
955 | ||
85067c06 VT |
956 | sc->led_on_duration = sc->led_on_cnt ? |
957 | max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25) : | |
958 | ATH_LED_ON_DURATION_IDLE; | |
959 | sc->led_off_duration = sc->led_off_cnt ? | |
960 | max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10) : | |
961 | ATH_LED_OFF_DURATION_IDLE; | |
f2bffa7e VT |
962 | sc->led_on_cnt = sc->led_off_cnt = 0; |
963 | if (sc->sc_flags & SC_OP_LED_ON) | |
964 | sc->sc_flags &= ~SC_OP_LED_ON; | |
965 | else | |
966 | sc->sc_flags |= SC_OP_LED_ON; | |
967 | } | |
968 | ||
8feceb67 VT |
969 | static void ath_led_brightness(struct led_classdev *led_cdev, |
970 | enum led_brightness brightness) | |
971 | { | |
972 | struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev); | |
973 | struct ath_softc *sc = led->sc; | |
f078f209 | 974 | |
8feceb67 VT |
975 | switch (brightness) { |
976 | case LED_OFF: | |
977 | if (led->led_type == ATH_LED_ASSOC || | |
f2bffa7e VT |
978 | led->led_type == ATH_LED_RADIO) { |
979 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, | |
980 | (led->led_type == ATH_LED_RADIO)); | |
8feceb67 | 981 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; |
f2bffa7e VT |
982 | if (led->led_type == ATH_LED_RADIO) |
983 | sc->sc_flags &= ~SC_OP_LED_ON; | |
984 | } else { | |
985 | sc->led_off_cnt++; | |
986 | } | |
8feceb67 VT |
987 | break; |
988 | case LED_FULL: | |
f2bffa7e | 989 | if (led->led_type == ATH_LED_ASSOC) { |
8feceb67 | 990 | sc->sc_flags |= SC_OP_LED_ASSOCIATED; |
f2bffa7e VT |
991 | queue_delayed_work(sc->hw->workqueue, |
992 | &sc->ath_led_blink_work, 0); | |
993 | } else if (led->led_type == ATH_LED_RADIO) { | |
994 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0); | |
995 | sc->sc_flags |= SC_OP_LED_ON; | |
996 | } else { | |
997 | sc->led_on_cnt++; | |
998 | } | |
8feceb67 VT |
999 | break; |
1000 | default: | |
1001 | break; | |
f078f209 | 1002 | } |
8feceb67 | 1003 | } |
f078f209 | 1004 | |
8feceb67 VT |
1005 | static int ath_register_led(struct ath_softc *sc, struct ath_led *led, |
1006 | char *trigger) | |
1007 | { | |
1008 | int ret; | |
f078f209 | 1009 | |
8feceb67 VT |
1010 | led->sc = sc; |
1011 | led->led_cdev.name = led->name; | |
1012 | led->led_cdev.default_trigger = trigger; | |
1013 | led->led_cdev.brightness_set = ath_led_brightness; | |
f078f209 | 1014 | |
8feceb67 VT |
1015 | ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev); |
1016 | if (ret) | |
1017 | DPRINTF(sc, ATH_DBG_FATAL, | |
1018 | "Failed to register led:%s", led->name); | |
1019 | else | |
1020 | led->registered = 1; | |
1021 | return ret; | |
1022 | } | |
f078f209 | 1023 | |
8feceb67 VT |
1024 | static void ath_unregister_led(struct ath_led *led) |
1025 | { | |
1026 | if (led->registered) { | |
1027 | led_classdev_unregister(&led->led_cdev); | |
1028 | led->registered = 0; | |
f078f209 | 1029 | } |
f078f209 LR |
1030 | } |
1031 | ||
8feceb67 | 1032 | static void ath_deinit_leds(struct ath_softc *sc) |
f078f209 | 1033 | { |
f2bffa7e | 1034 | cancel_delayed_work_sync(&sc->ath_led_blink_work); |
8feceb67 VT |
1035 | ath_unregister_led(&sc->assoc_led); |
1036 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; | |
1037 | ath_unregister_led(&sc->tx_led); | |
1038 | ath_unregister_led(&sc->rx_led); | |
1039 | ath_unregister_led(&sc->radio_led); | |
1040 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); | |
1041 | } | |
f078f209 | 1042 | |
8feceb67 VT |
1043 | static void ath_init_leds(struct ath_softc *sc) |
1044 | { | |
1045 | char *trigger; | |
1046 | int ret; | |
f078f209 | 1047 | |
8feceb67 VT |
1048 | /* Configure gpio 1 for output */ |
1049 | ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN, | |
1050 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | |
1051 | /* LED off, active low */ | |
1052 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); | |
7dcfdcd9 | 1053 | |
f2bffa7e VT |
1054 | INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work); |
1055 | ||
8feceb67 VT |
1056 | trigger = ieee80211_get_radio_led_name(sc->hw); |
1057 | snprintf(sc->radio_led.name, sizeof(sc->radio_led.name), | |
0818cb8a | 1058 | "ath9k-%s::radio", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1059 | ret = ath_register_led(sc, &sc->radio_led, trigger); |
1060 | sc->radio_led.led_type = ATH_LED_RADIO; | |
1061 | if (ret) | |
1062 | goto fail; | |
7dcfdcd9 | 1063 | |
8feceb67 VT |
1064 | trigger = ieee80211_get_assoc_led_name(sc->hw); |
1065 | snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name), | |
0818cb8a | 1066 | "ath9k-%s::assoc", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1067 | ret = ath_register_led(sc, &sc->assoc_led, trigger); |
1068 | sc->assoc_led.led_type = ATH_LED_ASSOC; | |
1069 | if (ret) | |
1070 | goto fail; | |
f078f209 | 1071 | |
8feceb67 VT |
1072 | trigger = ieee80211_get_tx_led_name(sc->hw); |
1073 | snprintf(sc->tx_led.name, sizeof(sc->tx_led.name), | |
0818cb8a | 1074 | "ath9k-%s::tx", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1075 | ret = ath_register_led(sc, &sc->tx_led, trigger); |
1076 | sc->tx_led.led_type = ATH_LED_TX; | |
1077 | if (ret) | |
1078 | goto fail; | |
f078f209 | 1079 | |
8feceb67 VT |
1080 | trigger = ieee80211_get_rx_led_name(sc->hw); |
1081 | snprintf(sc->rx_led.name, sizeof(sc->rx_led.name), | |
0818cb8a | 1082 | "ath9k-%s::rx", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1083 | ret = ath_register_led(sc, &sc->rx_led, trigger); |
1084 | sc->rx_led.led_type = ATH_LED_RX; | |
1085 | if (ret) | |
1086 | goto fail; | |
f078f209 | 1087 | |
8feceb67 VT |
1088 | return; |
1089 | ||
1090 | fail: | |
1091 | ath_deinit_leds(sc); | |
f078f209 LR |
1092 | } |
1093 | ||
7ec3e514 | 1094 | void ath_radio_enable(struct ath_softc *sc) |
500c064d | 1095 | { |
cbe61d8a | 1096 | struct ath_hw *ah = sc->sc_ah; |
ae8d2858 LR |
1097 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
1098 | int r; | |
500c064d | 1099 | |
3cbb5dd7 | 1100 | ath9k_ps_wakeup(sc); |
500c064d | 1101 | spin_lock_bh(&sc->sc_resetlock); |
ae8d2858 | 1102 | |
2660b81a | 1103 | r = ath9k_hw_reset(ah, ah->curchan, false); |
ae8d2858 LR |
1104 | |
1105 | if (r) { | |
500c064d | 1106 | DPRINTF(sc, ATH_DBG_FATAL, |
ae8d2858 LR |
1107 | "Unable to reset channel %u (%uMhz) ", |
1108 | "reset status %u\n", | |
1109 | channel->center_freq, r); | |
500c064d VT |
1110 | } |
1111 | spin_unlock_bh(&sc->sc_resetlock); | |
1112 | ||
1113 | ath_update_txpow(sc); | |
1114 | if (ath_startrecv(sc) != 0) { | |
1115 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1116 | "Unable to restart recv logic\n"); |
500c064d VT |
1117 | return; |
1118 | } | |
1119 | ||
1120 | if (sc->sc_flags & SC_OP_BEACONS) | |
2c3db3d5 | 1121 | ath_beacon_config(sc, NULL); /* restart beacons */ |
500c064d VT |
1122 | |
1123 | /* Re-Enable interrupts */ | |
17d7904d | 1124 | ath9k_hw_set_interrupts(ah, sc->imask); |
500c064d VT |
1125 | |
1126 | /* Enable LED */ | |
1127 | ath9k_hw_cfg_output(ah, ATH_LED_PIN, | |
1128 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | |
1129 | ath9k_hw_set_gpio(ah, ATH_LED_PIN, 0); | |
1130 | ||
1131 | ieee80211_wake_queues(sc->hw); | |
3cbb5dd7 | 1132 | ath9k_ps_restore(sc); |
500c064d VT |
1133 | } |
1134 | ||
7ec3e514 | 1135 | void ath_radio_disable(struct ath_softc *sc) |
500c064d | 1136 | { |
cbe61d8a | 1137 | struct ath_hw *ah = sc->sc_ah; |
ae8d2858 LR |
1138 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
1139 | int r; | |
500c064d | 1140 | |
3cbb5dd7 | 1141 | ath9k_ps_wakeup(sc); |
500c064d VT |
1142 | ieee80211_stop_queues(sc->hw); |
1143 | ||
1144 | /* Disable LED */ | |
1145 | ath9k_hw_set_gpio(ah, ATH_LED_PIN, 1); | |
1146 | ath9k_hw_cfg_gpio_input(ah, ATH_LED_PIN); | |
1147 | ||
1148 | /* Disable interrupts */ | |
1149 | ath9k_hw_set_interrupts(ah, 0); | |
1150 | ||
043a0405 | 1151 | ath_drain_all_txq(sc, false); /* clear pending tx frames */ |
500c064d VT |
1152 | ath_stoprecv(sc); /* turn off frame recv */ |
1153 | ath_flushrecv(sc); /* flush recv queue */ | |
1154 | ||
1155 | spin_lock_bh(&sc->sc_resetlock); | |
2660b81a | 1156 | r = ath9k_hw_reset(ah, ah->curchan, false); |
ae8d2858 | 1157 | if (r) { |
500c064d | 1158 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 1159 | "Unable to reset channel %u (%uMhz) " |
ae8d2858 LR |
1160 | "reset status %u\n", |
1161 | channel->center_freq, r); | |
500c064d VT |
1162 | } |
1163 | spin_unlock_bh(&sc->sc_resetlock); | |
1164 | ||
1165 | ath9k_hw_phy_disable(ah); | |
1166 | ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP); | |
3cbb5dd7 | 1167 | ath9k_ps_restore(sc); |
500c064d VT |
1168 | } |
1169 | ||
5077fd35 GJ |
1170 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
1171 | ||
1172 | /*******************/ | |
1173 | /* Rfkill */ | |
1174 | /*******************/ | |
1175 | ||
500c064d VT |
1176 | static bool ath_is_rfkill_set(struct ath_softc *sc) |
1177 | { | |
cbe61d8a | 1178 | struct ath_hw *ah = sc->sc_ah; |
500c064d | 1179 | |
2660b81a S |
1180 | return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == |
1181 | ah->rfkill_polarity; | |
500c064d VT |
1182 | } |
1183 | ||
1184 | /* h/w rfkill poll function */ | |
1185 | static void ath_rfkill_poll(struct work_struct *work) | |
1186 | { | |
1187 | struct ath_softc *sc = container_of(work, struct ath_softc, | |
1188 | rf_kill.rfkill_poll.work); | |
1189 | bool radio_on; | |
1190 | ||
1191 | if (sc->sc_flags & SC_OP_INVALID) | |
1192 | return; | |
1193 | ||
1194 | radio_on = !ath_is_rfkill_set(sc); | |
1195 | ||
1196 | /* | |
1197 | * enable/disable radio only when there is a | |
1198 | * state change in RF switch | |
1199 | */ | |
1200 | if (radio_on == !!(sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED)) { | |
1201 | enum rfkill_state state; | |
1202 | ||
1203 | if (sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED) { | |
1204 | state = radio_on ? RFKILL_STATE_SOFT_BLOCKED | |
1205 | : RFKILL_STATE_HARD_BLOCKED; | |
1206 | } else if (radio_on) { | |
1207 | ath_radio_enable(sc); | |
1208 | state = RFKILL_STATE_UNBLOCKED; | |
1209 | } else { | |
1210 | ath_radio_disable(sc); | |
1211 | state = RFKILL_STATE_HARD_BLOCKED; | |
1212 | } | |
1213 | ||
1214 | if (state == RFKILL_STATE_HARD_BLOCKED) | |
1215 | sc->sc_flags |= SC_OP_RFKILL_HW_BLOCKED; | |
1216 | else | |
1217 | sc->sc_flags &= ~SC_OP_RFKILL_HW_BLOCKED; | |
1218 | ||
1219 | rfkill_force_state(sc->rf_kill.rfkill, state); | |
1220 | } | |
1221 | ||
1222 | queue_delayed_work(sc->hw->workqueue, &sc->rf_kill.rfkill_poll, | |
1223 | msecs_to_jiffies(ATH_RFKILL_POLL_INTERVAL)); | |
1224 | } | |
1225 | ||
1226 | /* s/w rfkill handler */ | |
1227 | static int ath_sw_toggle_radio(void *data, enum rfkill_state state) | |
1228 | { | |
1229 | struct ath_softc *sc = data; | |
1230 | ||
1231 | switch (state) { | |
1232 | case RFKILL_STATE_SOFT_BLOCKED: | |
1233 | if (!(sc->sc_flags & (SC_OP_RFKILL_HW_BLOCKED | | |
1234 | SC_OP_RFKILL_SW_BLOCKED))) | |
1235 | ath_radio_disable(sc); | |
1236 | sc->sc_flags |= SC_OP_RFKILL_SW_BLOCKED; | |
1237 | return 0; | |
1238 | case RFKILL_STATE_UNBLOCKED: | |
1239 | if ((sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED)) { | |
1240 | sc->sc_flags &= ~SC_OP_RFKILL_SW_BLOCKED; | |
1241 | if (sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED) { | |
1242 | DPRINTF(sc, ATH_DBG_FATAL, "Can't turn on the" | |
04bd4638 | 1243 | "radio as it is disabled by h/w\n"); |
500c064d VT |
1244 | return -EPERM; |
1245 | } | |
1246 | ath_radio_enable(sc); | |
1247 | } | |
1248 | return 0; | |
1249 | default: | |
1250 | return -EINVAL; | |
1251 | } | |
1252 | } | |
1253 | ||
1254 | /* Init s/w rfkill */ | |
1255 | static int ath_init_sw_rfkill(struct ath_softc *sc) | |
1256 | { | |
1257 | sc->rf_kill.rfkill = rfkill_allocate(wiphy_dev(sc->hw->wiphy), | |
1258 | RFKILL_TYPE_WLAN); | |
1259 | if (!sc->rf_kill.rfkill) { | |
1260 | DPRINTF(sc, ATH_DBG_FATAL, "Failed to allocate rfkill\n"); | |
1261 | return -ENOMEM; | |
1262 | } | |
1263 | ||
1264 | snprintf(sc->rf_kill.rfkill_name, sizeof(sc->rf_kill.rfkill_name), | |
0818cb8a | 1265 | "ath9k-%s::rfkill", wiphy_name(sc->hw->wiphy)); |
500c064d VT |
1266 | sc->rf_kill.rfkill->name = sc->rf_kill.rfkill_name; |
1267 | sc->rf_kill.rfkill->data = sc; | |
1268 | sc->rf_kill.rfkill->toggle_radio = ath_sw_toggle_radio; | |
1269 | sc->rf_kill.rfkill->state = RFKILL_STATE_UNBLOCKED; | |
1270 | sc->rf_kill.rfkill->user_claim_unsupported = 1; | |
1271 | ||
1272 | return 0; | |
1273 | } | |
1274 | ||
1275 | /* Deinitialize rfkill */ | |
1276 | static void ath_deinit_rfkill(struct ath_softc *sc) | |
1277 | { | |
2660b81a | 1278 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
500c064d VT |
1279 | cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll); |
1280 | ||
1281 | if (sc->sc_flags & SC_OP_RFKILL_REGISTERED) { | |
1282 | rfkill_unregister(sc->rf_kill.rfkill); | |
1283 | sc->sc_flags &= ~SC_OP_RFKILL_REGISTERED; | |
1284 | sc->rf_kill.rfkill = NULL; | |
1285 | } | |
1286 | } | |
9c84b797 S |
1287 | |
1288 | static int ath_start_rfkill_poll(struct ath_softc *sc) | |
1289 | { | |
2660b81a | 1290 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
9c84b797 S |
1291 | queue_delayed_work(sc->hw->workqueue, |
1292 | &sc->rf_kill.rfkill_poll, 0); | |
1293 | ||
1294 | if (!(sc->sc_flags & SC_OP_RFKILL_REGISTERED)) { | |
1295 | if (rfkill_register(sc->rf_kill.rfkill)) { | |
1296 | DPRINTF(sc, ATH_DBG_FATAL, | |
1297 | "Unable to register rfkill\n"); | |
1298 | rfkill_free(sc->rf_kill.rfkill); | |
1299 | ||
1300 | /* Deinitialize the device */ | |
39c3c2f2 | 1301 | ath_cleanup(sc); |
9c84b797 S |
1302 | return -EIO; |
1303 | } else { | |
1304 | sc->sc_flags |= SC_OP_RFKILL_REGISTERED; | |
1305 | } | |
1306 | } | |
1307 | ||
1308 | return 0; | |
1309 | } | |
500c064d VT |
1310 | #endif /* CONFIG_RFKILL */ |
1311 | ||
6baff7f9 | 1312 | void ath_cleanup(struct ath_softc *sc) |
39c3c2f2 GJ |
1313 | { |
1314 | ath_detach(sc); | |
1315 | free_irq(sc->irq, sc); | |
1316 | ath_bus_cleanup(sc); | |
c52f33d0 | 1317 | kfree(sc->sec_wiphy); |
39c3c2f2 GJ |
1318 | ieee80211_free_hw(sc->hw); |
1319 | } | |
1320 | ||
6baff7f9 | 1321 | void ath_detach(struct ath_softc *sc) |
f078f209 | 1322 | { |
8feceb67 | 1323 | struct ieee80211_hw *hw = sc->hw; |
9c84b797 | 1324 | int i = 0; |
f078f209 | 1325 | |
3cbb5dd7 VN |
1326 | ath9k_ps_wakeup(sc); |
1327 | ||
04bd4638 | 1328 | DPRINTF(sc, ATH_DBG_CONFIG, "Detach ATH hw\n"); |
f078f209 | 1329 | |
e97275cb | 1330 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
500c064d VT |
1331 | ath_deinit_rfkill(sc); |
1332 | #endif | |
3fcdfb4b | 1333 | ath_deinit_leds(sc); |
0e2dedf9 | 1334 | cancel_work_sync(&sc->chan_work); |
f98c3bd2 | 1335 | cancel_delayed_work_sync(&sc->wiphy_work); |
3fcdfb4b | 1336 | |
c52f33d0 JM |
1337 | for (i = 0; i < sc->num_sec_wiphy; i++) { |
1338 | struct ath_wiphy *aphy = sc->sec_wiphy[i]; | |
1339 | if (aphy == NULL) | |
1340 | continue; | |
1341 | sc->sec_wiphy[i] = NULL; | |
1342 | ieee80211_unregister_hw(aphy->hw); | |
1343 | ieee80211_free_hw(aphy->hw); | |
1344 | } | |
3fcdfb4b | 1345 | ieee80211_unregister_hw(hw); |
8feceb67 VT |
1346 | ath_rx_cleanup(sc); |
1347 | ath_tx_cleanup(sc); | |
f078f209 | 1348 | |
9c84b797 S |
1349 | tasklet_kill(&sc->intr_tq); |
1350 | tasklet_kill(&sc->bcon_tasklet); | |
f078f209 | 1351 | |
9c84b797 S |
1352 | if (!(sc->sc_flags & SC_OP_INVALID)) |
1353 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); | |
8feceb67 | 1354 | |
9c84b797 S |
1355 | /* cleanup tx queues */ |
1356 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1357 | if (ATH_TXQ_SETUP(sc, i)) | |
b77f483f | 1358 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
9c84b797 S |
1359 | |
1360 | ath9k_hw_detach(sc->sc_ah); | |
826d2680 | 1361 | ath9k_exit_debug(sc); |
3cbb5dd7 | 1362 | ath9k_ps_restore(sc); |
f078f209 LR |
1363 | } |
1364 | ||
ff37e337 S |
1365 | static int ath_init(u16 devid, struct ath_softc *sc) |
1366 | { | |
cbe61d8a | 1367 | struct ath_hw *ah = NULL; |
ff37e337 S |
1368 | int status; |
1369 | int error = 0, i; | |
1370 | int csz = 0; | |
1371 | ||
1372 | /* XXX: hardware will not be ready until ath_open() being called */ | |
1373 | sc->sc_flags |= SC_OP_INVALID; | |
88b126af | 1374 | |
826d2680 S |
1375 | if (ath9k_init_debug(sc) < 0) |
1376 | printk(KERN_ERR "Unable to create debugfs files\n"); | |
ff37e337 | 1377 | |
c52f33d0 | 1378 | spin_lock_init(&sc->wiphy_lock); |
ff37e337 | 1379 | spin_lock_init(&sc->sc_resetlock); |
6158425b | 1380 | spin_lock_init(&sc->sc_serial_rw); |
aa33de09 | 1381 | mutex_init(&sc->mutex); |
ff37e337 | 1382 | tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc); |
9fc9ab0a | 1383 | tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, |
ff37e337 S |
1384 | (unsigned long)sc); |
1385 | ||
1386 | /* | |
1387 | * Cache line size is used to size and align various | |
1388 | * structures used to communicate with the hardware. | |
1389 | */ | |
88d15707 | 1390 | ath_read_cachesize(sc, &csz); |
ff37e337 | 1391 | /* XXX assert csz is non-zero */ |
17d7904d | 1392 | sc->cachelsz = csz << 2; /* convert to bytes */ |
ff37e337 | 1393 | |
cbe61d8a | 1394 | ah = ath9k_hw_attach(devid, sc, &status); |
ff37e337 S |
1395 | if (ah == NULL) { |
1396 | DPRINTF(sc, ATH_DBG_FATAL, | |
295834fe | 1397 | "Unable to attach hardware; HAL status %d\n", status); |
ff37e337 S |
1398 | error = -ENXIO; |
1399 | goto bad; | |
1400 | } | |
1401 | sc->sc_ah = ah; | |
1402 | ||
1403 | /* Get the hardware key cache size. */ | |
2660b81a | 1404 | sc->keymax = ah->caps.keycache_size; |
17d7904d | 1405 | if (sc->keymax > ATH_KEYMAX) { |
ff37e337 | 1406 | DPRINTF(sc, ATH_DBG_KEYCACHE, |
04bd4638 | 1407 | "Warning, using only %u entries in %u key cache\n", |
17d7904d S |
1408 | ATH_KEYMAX, sc->keymax); |
1409 | sc->keymax = ATH_KEYMAX; | |
ff37e337 S |
1410 | } |
1411 | ||
1412 | /* | |
1413 | * Reset the key cache since some parts do not | |
1414 | * reset the contents on initial power up. | |
1415 | */ | |
17d7904d | 1416 | for (i = 0; i < sc->keymax; i++) |
ff37e337 | 1417 | ath9k_hw_keyreset(ah, (u16) i); |
ff37e337 | 1418 | |
5f8e077c | 1419 | if (ath9k_regd_init(sc->sc_ah)) |
ff37e337 S |
1420 | goto bad; |
1421 | ||
1422 | /* default to MONITOR mode */ | |
2660b81a | 1423 | sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; |
d97809db | 1424 | |
ff37e337 S |
1425 | /* Setup rate tables */ |
1426 | ||
1427 | ath_rate_attach(sc); | |
1428 | ath_setup_rates(sc, IEEE80211_BAND_2GHZ); | |
1429 | ath_setup_rates(sc, IEEE80211_BAND_5GHZ); | |
1430 | ||
1431 | /* | |
1432 | * Allocate hardware transmit queues: one queue for | |
1433 | * beacon frames and one data queue for each QoS | |
1434 | * priority. Note that the hal handles reseting | |
1435 | * these queues at the needed time. | |
1436 | */ | |
b77f483f S |
1437 | sc->beacon.beaconq = ath_beaconq_setup(ah); |
1438 | if (sc->beacon.beaconq == -1) { | |
ff37e337 | 1439 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 1440 | "Unable to setup a beacon xmit queue\n"); |
ff37e337 S |
1441 | error = -EIO; |
1442 | goto bad2; | |
1443 | } | |
b77f483f S |
1444 | sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0); |
1445 | if (sc->beacon.cabq == NULL) { | |
ff37e337 | 1446 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 1447 | "Unable to setup CAB xmit queue\n"); |
ff37e337 S |
1448 | error = -EIO; |
1449 | goto bad2; | |
1450 | } | |
1451 | ||
17d7904d | 1452 | sc->config.cabqReadytime = ATH_CABQ_READY_TIME; |
ff37e337 S |
1453 | ath_cabq_update(sc); |
1454 | ||
b77f483f S |
1455 | for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++) |
1456 | sc->tx.hwq_map[i] = -1; | |
ff37e337 S |
1457 | |
1458 | /* Setup data queues */ | |
1459 | /* NB: ensure BK queue is the lowest priority h/w queue */ | |
1460 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) { | |
1461 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1462 | "Unable to setup xmit queue for BK traffic\n"); |
ff37e337 S |
1463 | error = -EIO; |
1464 | goto bad2; | |
1465 | } | |
1466 | ||
1467 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BE)) { | |
1468 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1469 | "Unable to setup xmit queue for BE traffic\n"); |
ff37e337 S |
1470 | error = -EIO; |
1471 | goto bad2; | |
1472 | } | |
1473 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VI)) { | |
1474 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1475 | "Unable to setup xmit queue for VI traffic\n"); |
ff37e337 S |
1476 | error = -EIO; |
1477 | goto bad2; | |
1478 | } | |
1479 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VO)) { | |
1480 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1481 | "Unable to setup xmit queue for VO traffic\n"); |
ff37e337 S |
1482 | error = -EIO; |
1483 | goto bad2; | |
1484 | } | |
1485 | ||
1486 | /* Initializes the noise floor to a reasonable default value. | |
1487 | * Later on this will be updated during ANI processing. */ | |
1488 | ||
17d7904d S |
1489 | sc->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR; |
1490 | setup_timer(&sc->ani.timer, ath_ani_calibrate, (unsigned long)sc); | |
ff37e337 S |
1491 | |
1492 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1493 | ATH9K_CIPHER_TKIP, NULL)) { | |
1494 | /* | |
1495 | * Whether we should enable h/w TKIP MIC. | |
1496 | * XXX: if we don't support WME TKIP MIC, then we wouldn't | |
1497 | * report WMM capable, so it's always safe to turn on | |
1498 | * TKIP MIC in this case. | |
1499 | */ | |
1500 | ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC, | |
1501 | 0, 1, NULL); | |
1502 | } | |
1503 | ||
1504 | /* | |
1505 | * Check whether the separate key cache entries | |
1506 | * are required to handle both tx+rx MIC keys. | |
1507 | * With split mic keys the number of stations is limited | |
1508 | * to 27 otherwise 59. | |
1509 | */ | |
1510 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1511 | ATH9K_CIPHER_TKIP, NULL) | |
1512 | && ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1513 | ATH9K_CIPHER_MIC, NULL) | |
1514 | && ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT, | |
1515 | 0, NULL)) | |
17d7904d | 1516 | sc->splitmic = 1; |
ff37e337 S |
1517 | |
1518 | /* turn on mcast key search if possible */ | |
1519 | if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL)) | |
1520 | (void)ath9k_hw_setcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 1, | |
1521 | 1, NULL); | |
1522 | ||
17d7904d | 1523 | sc->config.txpowlimit = ATH_TXPOWER_MAX; |
ff37e337 S |
1524 | |
1525 | /* 11n Capabilities */ | |
2660b81a | 1526 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
ff37e337 S |
1527 | sc->sc_flags |= SC_OP_TXAGGR; |
1528 | sc->sc_flags |= SC_OP_RXAGGR; | |
1529 | } | |
1530 | ||
2660b81a S |
1531 | sc->tx_chainmask = ah->caps.tx_chainmask; |
1532 | sc->rx_chainmask = ah->caps.rx_chainmask; | |
ff37e337 S |
1533 | |
1534 | ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL); | |
b77f483f | 1535 | sc->rx.defant = ath9k_hw_getdefantenna(ah); |
ff37e337 | 1536 | |
8ca21f01 | 1537 | if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) |
ba52da58 | 1538 | memcpy(sc->bssidmask, ath_bcast_mac, ETH_ALEN); |
ff37e337 | 1539 | |
b77f483f | 1540 | sc->beacon.slottime = ATH9K_SLOT_TIME_9; /* default to short slot time */ |
ff37e337 S |
1541 | |
1542 | /* initialize beacon slots */ | |
c52f33d0 | 1543 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
2c3db3d5 | 1544 | sc->beacon.bslot[i] = NULL; |
c52f33d0 JM |
1545 | sc->beacon.bslot_aphy[i] = NULL; |
1546 | } | |
ff37e337 S |
1547 | |
1548 | /* save MISC configurations */ | |
17d7904d | 1549 | sc->config.swBeaconProcess = 1; |
ff37e337 | 1550 | |
ff37e337 S |
1551 | /* setup channels and rates */ |
1552 | ||
5f8e077c | 1553 | sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable; |
ff37e337 S |
1554 | sc->sbands[IEEE80211_BAND_2GHZ].bitrates = |
1555 | sc->rates[IEEE80211_BAND_2GHZ]; | |
1556 | sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ; | |
5f8e077c LR |
1557 | sc->sbands[IEEE80211_BAND_2GHZ].n_channels = |
1558 | ARRAY_SIZE(ath9k_2ghz_chantable); | |
ff37e337 | 1559 | |
2660b81a | 1560 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) { |
5f8e077c | 1561 | sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable; |
ff37e337 S |
1562 | sc->sbands[IEEE80211_BAND_5GHZ].bitrates = |
1563 | sc->rates[IEEE80211_BAND_5GHZ]; | |
1564 | sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; | |
5f8e077c LR |
1565 | sc->sbands[IEEE80211_BAND_5GHZ].n_channels = |
1566 | ARRAY_SIZE(ath9k_5ghz_chantable); | |
ff37e337 S |
1567 | } |
1568 | ||
2660b81a | 1569 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX) |
c97c92d9 VT |
1570 | ath9k_hw_btcoex_enable(sc->sc_ah); |
1571 | ||
ff37e337 S |
1572 | return 0; |
1573 | bad2: | |
1574 | /* cleanup tx queues */ | |
1575 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1576 | if (ATH_TXQ_SETUP(sc, i)) | |
b77f483f | 1577 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
ff37e337 S |
1578 | bad: |
1579 | if (ah) | |
1580 | ath9k_hw_detach(ah); | |
40b130a9 | 1581 | ath9k_exit_debug(sc); |
ff37e337 S |
1582 | |
1583 | return error; | |
1584 | } | |
1585 | ||
c52f33d0 | 1586 | void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) |
f078f209 | 1587 | { |
9c84b797 S |
1588 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
1589 | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | | |
1590 | IEEE80211_HW_SIGNAL_DBM | | |
3cbb5dd7 VN |
1591 | IEEE80211_HW_AMPDU_AGGREGATION | |
1592 | IEEE80211_HW_SUPPORTS_PS | | |
eeee1320 S |
1593 | IEEE80211_HW_PS_NULLFUNC_STACK | |
1594 | IEEE80211_HW_SPECTRUM_MGMT; | |
f078f209 | 1595 | |
b3bd89ce | 1596 | if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt) |
0ced0e17 JM |
1597 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
1598 | ||
9c84b797 S |
1599 | hw->wiphy->interface_modes = |
1600 | BIT(NL80211_IFTYPE_AP) | | |
1601 | BIT(NL80211_IFTYPE_STATION) | | |
9cb5412b PE |
1602 | BIT(NL80211_IFTYPE_ADHOC) | |
1603 | BIT(NL80211_IFTYPE_MESH_POINT); | |
f078f209 | 1604 | |
5f8e077c LR |
1605 | hw->wiphy->reg_notifier = ath9k_reg_notifier; |
1606 | hw->wiphy->strict_regulatory = true; | |
1607 | ||
8feceb67 | 1608 | hw->queues = 4; |
e63835b0 | 1609 | hw->max_rates = 4; |
171387ef | 1610 | hw->channel_change_time = 5000; |
465ca84d | 1611 | hw->max_listen_interval = 10; |
e63835b0 | 1612 | hw->max_rate_tries = ATH_11N_TXMAXTRY; |
528f0c6b | 1613 | hw->sta_data_size = sizeof(struct ath_node); |
17d7904d | 1614 | hw->vif_data_size = sizeof(struct ath_vif); |
f078f209 | 1615 | |
8feceb67 | 1616 | hw->rate_control_algorithm = "ath9k_rate_control"; |
f078f209 | 1617 | |
c52f33d0 JM |
1618 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
1619 | &sc->sbands[IEEE80211_BAND_2GHZ]; | |
1620 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) | |
1621 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
1622 | &sc->sbands[IEEE80211_BAND_5GHZ]; | |
1623 | } | |
1624 | ||
1625 | int ath_attach(u16 devid, struct ath_softc *sc) | |
1626 | { | |
1627 | struct ieee80211_hw *hw = sc->hw; | |
1628 | const struct ieee80211_regdomain *regd; | |
1629 | int error = 0, i; | |
1630 | ||
1631 | DPRINTF(sc, ATH_DBG_CONFIG, "Attach ATH hw\n"); | |
1632 | ||
1633 | error = ath_init(devid, sc); | |
1634 | if (error != 0) | |
1635 | return error; | |
1636 | ||
1637 | /* get mac address from hardware and set in mac80211 */ | |
1638 | ||
1639 | SET_IEEE80211_PERM_ADDR(hw, sc->sc_ah->macaddr); | |
1640 | ||
1641 | ath_set_hw_capab(sc, hw); | |
1642 | ||
2660b81a | 1643 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
eb2599ca | 1644 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap); |
2660b81a | 1645 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) |
eb2599ca | 1646 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); |
9c84b797 S |
1647 | } |
1648 | ||
db93e7b5 SB |
1649 | /* initialize tx/rx engine */ |
1650 | error = ath_tx_init(sc, ATH_TXBUF); | |
1651 | if (error != 0) | |
40b130a9 | 1652 | goto error_attach; |
8feceb67 | 1653 | |
db93e7b5 SB |
1654 | error = ath_rx_init(sc, ATH_RXBUF); |
1655 | if (error != 0) | |
40b130a9 | 1656 | goto error_attach; |
8feceb67 | 1657 | |
e97275cb | 1658 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
500c064d | 1659 | /* Initialze h/w Rfkill */ |
2660b81a | 1660 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
500c064d VT |
1661 | INIT_DELAYED_WORK(&sc->rf_kill.rfkill_poll, ath_rfkill_poll); |
1662 | ||
1663 | /* Initialize s/w rfkill */ | |
40b130a9 VT |
1664 | error = ath_init_sw_rfkill(sc); |
1665 | if (error) | |
1666 | goto error_attach; | |
500c064d VT |
1667 | #endif |
1668 | ||
5f8e077c | 1669 | if (ath9k_is_world_regd(sc->sc_ah)) { |
191a99b7 | 1670 | /* Anything applied here (prior to wiphy registration) gets |
5f8e077c | 1671 | * saved on the wiphy orig_* parameters */ |
191a99b7 | 1672 | regd = ath9k_world_regdomain(sc->sc_ah); |
5f8e077c LR |
1673 | hw->wiphy->custom_regulatory = true; |
1674 | hw->wiphy->strict_regulatory = false; | |
5f8e077c LR |
1675 | } else { |
1676 | /* This gets applied in the case of the absense of CRDA, | |
191a99b7 | 1677 | * it's our own custom world regulatory domain, similar to |
5f8e077c | 1678 | * cfg80211's but we enable passive scanning */ |
191a99b7 | 1679 | regd = ath9k_default_world_regdomain(); |
5f8e077c | 1680 | } |
191a99b7 BC |
1681 | wiphy_apply_custom_regulatory(hw->wiphy, regd); |
1682 | ath9k_reg_apply_radar_flags(hw->wiphy); | |
7db90f4a | 1683 | ath9k_reg_apply_world_flags(hw->wiphy, NL80211_REGDOM_SET_BY_DRIVER); |
5f8e077c | 1684 | |
0e2dedf9 | 1685 | INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work); |
f98c3bd2 JM |
1686 | INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work); |
1687 | sc->wiphy_scheduler_int = msecs_to_jiffies(500); | |
0e2dedf9 | 1688 | |
db93e7b5 | 1689 | error = ieee80211_register_hw(hw); |
8feceb67 | 1690 | |
fe33eb39 LR |
1691 | if (!ath9k_is_world_regd(sc->sc_ah)) { |
1692 | error = regulatory_hint(hw->wiphy, | |
1693 | sc->sc_ah->regulatory.alpha2); | |
1694 | if (error) | |
1695 | goto error_attach; | |
1696 | } | |
5f8e077c | 1697 | |
db93e7b5 SB |
1698 | /* Initialize LED control */ |
1699 | ath_init_leds(sc); | |
8feceb67 | 1700 | |
5f8e077c | 1701 | |
8feceb67 | 1702 | return 0; |
40b130a9 VT |
1703 | |
1704 | error_attach: | |
1705 | /* cleanup tx queues */ | |
1706 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1707 | if (ATH_TXQ_SETUP(sc, i)) | |
1708 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); | |
1709 | ||
1710 | ath9k_hw_detach(sc->sc_ah); | |
1711 | ath9k_exit_debug(sc); | |
1712 | ||
8feceb67 | 1713 | return error; |
f078f209 LR |
1714 | } |
1715 | ||
ff37e337 S |
1716 | int ath_reset(struct ath_softc *sc, bool retry_tx) |
1717 | { | |
cbe61d8a | 1718 | struct ath_hw *ah = sc->sc_ah; |
030bb495 | 1719 | struct ieee80211_hw *hw = sc->hw; |
ae8d2858 | 1720 | int r; |
ff37e337 S |
1721 | |
1722 | ath9k_hw_set_interrupts(ah, 0); | |
043a0405 | 1723 | ath_drain_all_txq(sc, retry_tx); |
ff37e337 S |
1724 | ath_stoprecv(sc); |
1725 | ath_flushrecv(sc); | |
1726 | ||
1727 | spin_lock_bh(&sc->sc_resetlock); | |
2660b81a | 1728 | r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); |
ae8d2858 | 1729 | if (r) |
ff37e337 | 1730 | DPRINTF(sc, ATH_DBG_FATAL, |
ae8d2858 | 1731 | "Unable to reset hardware; reset status %u\n", r); |
ff37e337 S |
1732 | spin_unlock_bh(&sc->sc_resetlock); |
1733 | ||
1734 | if (ath_startrecv(sc) != 0) | |
04bd4638 | 1735 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); |
ff37e337 S |
1736 | |
1737 | /* | |
1738 | * We may be doing a reset in response to a request | |
1739 | * that changes the channel so update any state that | |
1740 | * might change as a result. | |
1741 | */ | |
ce111bad | 1742 | ath_cache_conf_rate(sc, &hw->conf); |
ff37e337 S |
1743 | |
1744 | ath_update_txpow(sc); | |
1745 | ||
1746 | if (sc->sc_flags & SC_OP_BEACONS) | |
2c3db3d5 | 1747 | ath_beacon_config(sc, NULL); /* restart beacons */ |
ff37e337 | 1748 | |
17d7904d | 1749 | ath9k_hw_set_interrupts(ah, sc->imask); |
ff37e337 S |
1750 | |
1751 | if (retry_tx) { | |
1752 | int i; | |
1753 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { | |
1754 | if (ATH_TXQ_SETUP(sc, i)) { | |
b77f483f S |
1755 | spin_lock_bh(&sc->tx.txq[i].axq_lock); |
1756 | ath_txq_schedule(sc, &sc->tx.txq[i]); | |
1757 | spin_unlock_bh(&sc->tx.txq[i].axq_lock); | |
ff37e337 S |
1758 | } |
1759 | } | |
1760 | } | |
1761 | ||
ae8d2858 | 1762 | return r; |
ff37e337 S |
1763 | } |
1764 | ||
1765 | /* | |
1766 | * This function will allocate both the DMA descriptor structure, and the | |
1767 | * buffers it contains. These are used to contain the descriptors used | |
1768 | * by the system. | |
1769 | */ | |
1770 | int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, | |
1771 | struct list_head *head, const char *name, | |
1772 | int nbuf, int ndesc) | |
1773 | { | |
1774 | #define DS2PHYS(_dd, _ds) \ | |
1775 | ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) | |
1776 | #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) | |
1777 | #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) | |
1778 | ||
1779 | struct ath_desc *ds; | |
1780 | struct ath_buf *bf; | |
1781 | int i, bsize, error; | |
1782 | ||
04bd4638 S |
1783 | DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n", |
1784 | name, nbuf, ndesc); | |
ff37e337 | 1785 | |
b03a9db9 | 1786 | INIT_LIST_HEAD(head); |
ff37e337 S |
1787 | /* ath_desc must be a multiple of DWORDs */ |
1788 | if ((sizeof(struct ath_desc) % 4) != 0) { | |
04bd4638 | 1789 | DPRINTF(sc, ATH_DBG_FATAL, "ath_desc not DWORD aligned\n"); |
ff37e337 S |
1790 | ASSERT((sizeof(struct ath_desc) % 4) == 0); |
1791 | error = -ENOMEM; | |
1792 | goto fail; | |
1793 | } | |
1794 | ||
1795 | dd->dd_name = name; | |
1796 | dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc; | |
1797 | ||
1798 | /* | |
1799 | * Need additional DMA memory because we can't use | |
1800 | * descriptors that cross the 4K page boundary. Assume | |
1801 | * one skipped descriptor per 4K page. | |
1802 | */ | |
2660b81a | 1803 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
ff37e337 S |
1804 | u32 ndesc_skipped = |
1805 | ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len); | |
1806 | u32 dma_len; | |
1807 | ||
1808 | while (ndesc_skipped) { | |
1809 | dma_len = ndesc_skipped * sizeof(struct ath_desc); | |
1810 | dd->dd_desc_len += dma_len; | |
1811 | ||
1812 | ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len); | |
1813 | }; | |
1814 | } | |
1815 | ||
1816 | /* allocate descriptors */ | |
7da3c55c | 1817 | dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len, |
f0e6ce13 | 1818 | &dd->dd_desc_paddr, GFP_KERNEL); |
ff37e337 S |
1819 | if (dd->dd_desc == NULL) { |
1820 | error = -ENOMEM; | |
1821 | goto fail; | |
1822 | } | |
1823 | ds = dd->dd_desc; | |
04bd4638 S |
1824 | DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n", |
1825 | dd->dd_name, ds, (u32) dd->dd_desc_len, | |
ff37e337 S |
1826 | ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len); |
1827 | ||
1828 | /* allocate buffers */ | |
1829 | bsize = sizeof(struct ath_buf) * nbuf; | |
f0e6ce13 | 1830 | bf = kzalloc(bsize, GFP_KERNEL); |
ff37e337 S |
1831 | if (bf == NULL) { |
1832 | error = -ENOMEM; | |
1833 | goto fail2; | |
1834 | } | |
ff37e337 S |
1835 | dd->dd_bufptr = bf; |
1836 | ||
ff37e337 S |
1837 | for (i = 0; i < nbuf; i++, bf++, ds += ndesc) { |
1838 | bf->bf_desc = ds; | |
1839 | bf->bf_daddr = DS2PHYS(dd, ds); | |
1840 | ||
2660b81a | 1841 | if (!(sc->sc_ah->caps.hw_caps & |
ff37e337 S |
1842 | ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
1843 | /* | |
1844 | * Skip descriptor addresses which can cause 4KB | |
1845 | * boundary crossing (addr + length) with a 32 dword | |
1846 | * descriptor fetch. | |
1847 | */ | |
1848 | while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) { | |
1849 | ASSERT((caddr_t) bf->bf_desc < | |
1850 | ((caddr_t) dd->dd_desc + | |
1851 | dd->dd_desc_len)); | |
1852 | ||
1853 | ds += ndesc; | |
1854 | bf->bf_desc = ds; | |
1855 | bf->bf_daddr = DS2PHYS(dd, ds); | |
1856 | } | |
1857 | } | |
1858 | list_add_tail(&bf->list, head); | |
1859 | } | |
1860 | return 0; | |
1861 | fail2: | |
7da3c55c GJ |
1862 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
1863 | dd->dd_desc_paddr); | |
ff37e337 S |
1864 | fail: |
1865 | memset(dd, 0, sizeof(*dd)); | |
1866 | return error; | |
1867 | #undef ATH_DESC_4KB_BOUND_CHECK | |
1868 | #undef ATH_DESC_4KB_BOUND_NUM_SKIPPED | |
1869 | #undef DS2PHYS | |
1870 | } | |
1871 | ||
1872 | void ath_descdma_cleanup(struct ath_softc *sc, | |
1873 | struct ath_descdma *dd, | |
1874 | struct list_head *head) | |
1875 | { | |
7da3c55c GJ |
1876 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
1877 | dd->dd_desc_paddr); | |
ff37e337 S |
1878 | |
1879 | INIT_LIST_HEAD(head); | |
1880 | kfree(dd->dd_bufptr); | |
1881 | memset(dd, 0, sizeof(*dd)); | |
1882 | } | |
1883 | ||
1884 | int ath_get_hal_qnum(u16 queue, struct ath_softc *sc) | |
1885 | { | |
1886 | int qnum; | |
1887 | ||
1888 | switch (queue) { | |
1889 | case 0: | |
b77f483f | 1890 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VO]; |
ff37e337 S |
1891 | break; |
1892 | case 1: | |
b77f483f | 1893 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VI]; |
ff37e337 S |
1894 | break; |
1895 | case 2: | |
b77f483f | 1896 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
ff37e337 S |
1897 | break; |
1898 | case 3: | |
b77f483f | 1899 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BK]; |
ff37e337 S |
1900 | break; |
1901 | default: | |
b77f483f | 1902 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
ff37e337 S |
1903 | break; |
1904 | } | |
1905 | ||
1906 | return qnum; | |
1907 | } | |
1908 | ||
1909 | int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc) | |
1910 | { | |
1911 | int qnum; | |
1912 | ||
1913 | switch (queue) { | |
1914 | case ATH9K_WME_AC_VO: | |
1915 | qnum = 0; | |
1916 | break; | |
1917 | case ATH9K_WME_AC_VI: | |
1918 | qnum = 1; | |
1919 | break; | |
1920 | case ATH9K_WME_AC_BE: | |
1921 | qnum = 2; | |
1922 | break; | |
1923 | case ATH9K_WME_AC_BK: | |
1924 | qnum = 3; | |
1925 | break; | |
1926 | default: | |
1927 | qnum = -1; | |
1928 | break; | |
1929 | } | |
1930 | ||
1931 | return qnum; | |
1932 | } | |
1933 | ||
5f8e077c LR |
1934 | /* XXX: Remove me once we don't depend on ath9k_channel for all |
1935 | * this redundant data */ | |
0e2dedf9 JM |
1936 | void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, |
1937 | struct ath9k_channel *ichan) | |
5f8e077c | 1938 | { |
5f8e077c LR |
1939 | struct ieee80211_channel *chan = hw->conf.channel; |
1940 | struct ieee80211_conf *conf = &hw->conf; | |
1941 | ||
1942 | ichan->channel = chan->center_freq; | |
1943 | ichan->chan = chan; | |
1944 | ||
1945 | if (chan->band == IEEE80211_BAND_2GHZ) { | |
1946 | ichan->chanmode = CHANNEL_G; | |
1947 | ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM; | |
1948 | } else { | |
1949 | ichan->chanmode = CHANNEL_A; | |
1950 | ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM; | |
1951 | } | |
1952 | ||
1953 | sc->tx_chan_width = ATH9K_HT_MACMODE_20; | |
1954 | ||
1955 | if (conf_is_ht(conf)) { | |
1956 | if (conf_is_ht40(conf)) | |
1957 | sc->tx_chan_width = ATH9K_HT_MACMODE_2040; | |
1958 | ||
1959 | ichan->chanmode = ath_get_extchanmode(sc, chan, | |
1960 | conf->channel_type); | |
1961 | } | |
1962 | } | |
1963 | ||
ff37e337 S |
1964 | /**********************/ |
1965 | /* mac80211 callbacks */ | |
1966 | /**********************/ | |
1967 | ||
8feceb67 | 1968 | static int ath9k_start(struct ieee80211_hw *hw) |
f078f209 | 1969 | { |
bce048d7 JM |
1970 | struct ath_wiphy *aphy = hw->priv; |
1971 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 1972 | struct ieee80211_channel *curchan = hw->conf.channel; |
ff37e337 | 1973 | struct ath9k_channel *init_channel; |
ae8d2858 | 1974 | int r, pos; |
f078f209 | 1975 | |
04bd4638 S |
1976 | DPRINTF(sc, ATH_DBG_CONFIG, "Starting driver with " |
1977 | "initial channel: %d MHz\n", curchan->center_freq); | |
f078f209 | 1978 | |
141b38b6 S |
1979 | mutex_lock(&sc->mutex); |
1980 | ||
9580a222 JM |
1981 | if (ath9k_wiphy_started(sc)) { |
1982 | if (sc->chan_idx == curchan->hw_value) { | |
1983 | /* | |
1984 | * Already on the operational channel, the new wiphy | |
1985 | * can be marked active. | |
1986 | */ | |
1987 | aphy->state = ATH_WIPHY_ACTIVE; | |
1988 | ieee80211_wake_queues(hw); | |
1989 | } else { | |
1990 | /* | |
1991 | * Another wiphy is on another channel, start the new | |
1992 | * wiphy in paused state. | |
1993 | */ | |
1994 | aphy->state = ATH_WIPHY_PAUSED; | |
1995 | ieee80211_stop_queues(hw); | |
1996 | } | |
1997 | mutex_unlock(&sc->mutex); | |
1998 | return 0; | |
1999 | } | |
2000 | aphy->state = ATH_WIPHY_ACTIVE; | |
2001 | ||
8feceb67 | 2002 | /* setup initial channel */ |
f078f209 | 2003 | |
5f8e077c | 2004 | pos = curchan->hw_value; |
f078f209 | 2005 | |
0e2dedf9 | 2006 | sc->chan_idx = pos; |
2660b81a | 2007 | init_channel = &sc->sc_ah->channels[pos]; |
0e2dedf9 | 2008 | ath9k_update_ichannel(sc, hw, init_channel); |
ff37e337 S |
2009 | |
2010 | /* Reset SERDES registers */ | |
2011 | ath9k_hw_configpcipowersave(sc->sc_ah, 0); | |
2012 | ||
2013 | /* | |
2014 | * The basic interface to setting the hardware in a good | |
2015 | * state is ``reset''. On return the hardware is known to | |
2016 | * be powered up and with interrupts disabled. This must | |
2017 | * be followed by initialization of the appropriate bits | |
2018 | * and then setup of the interrupt mask. | |
2019 | */ | |
2020 | spin_lock_bh(&sc->sc_resetlock); | |
ae8d2858 LR |
2021 | r = ath9k_hw_reset(sc->sc_ah, init_channel, false); |
2022 | if (r) { | |
ff37e337 | 2023 | DPRINTF(sc, ATH_DBG_FATAL, |
ae8d2858 LR |
2024 | "Unable to reset hardware; reset status %u " |
2025 | "(freq %u MHz)\n", r, | |
2026 | curchan->center_freq); | |
ff37e337 | 2027 | spin_unlock_bh(&sc->sc_resetlock); |
141b38b6 | 2028 | goto mutex_unlock; |
ff37e337 S |
2029 | } |
2030 | spin_unlock_bh(&sc->sc_resetlock); | |
2031 | ||
2032 | /* | |
2033 | * This is needed only to setup initial state | |
2034 | * but it's best done after a reset. | |
2035 | */ | |
2036 | ath_update_txpow(sc); | |
8feceb67 | 2037 | |
ff37e337 S |
2038 | /* |
2039 | * Setup the hardware after reset: | |
2040 | * The receive engine is set going. | |
2041 | * Frame transmit is handled entirely | |
2042 | * in the frame output path; there's nothing to do | |
2043 | * here except setup the interrupt mask. | |
2044 | */ | |
2045 | if (ath_startrecv(sc) != 0) { | |
8feceb67 | 2046 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 2047 | "Unable to start recv logic\n"); |
141b38b6 S |
2048 | r = -EIO; |
2049 | goto mutex_unlock; | |
f078f209 | 2050 | } |
8feceb67 | 2051 | |
ff37e337 | 2052 | /* Setup our intr mask. */ |
17d7904d | 2053 | sc->imask = ATH9K_INT_RX | ATH9K_INT_TX |
ff37e337 S |
2054 | | ATH9K_INT_RXEOL | ATH9K_INT_RXORN |
2055 | | ATH9K_INT_FATAL | ATH9K_INT_GLOBAL; | |
2056 | ||
2660b81a | 2057 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_GTT) |
17d7904d | 2058 | sc->imask |= ATH9K_INT_GTT; |
ff37e337 | 2059 | |
2660b81a | 2060 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) |
17d7904d | 2061 | sc->imask |= ATH9K_INT_CST; |
ff37e337 | 2062 | |
ce111bad | 2063 | ath_cache_conf_rate(sc, &hw->conf); |
ff37e337 S |
2064 | |
2065 | sc->sc_flags &= ~SC_OP_INVALID; | |
2066 | ||
2067 | /* Disable BMISS interrupt when we're not associated */ | |
17d7904d S |
2068 | sc->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); |
2069 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); | |
ff37e337 | 2070 | |
bce048d7 | 2071 | ieee80211_wake_queues(hw); |
ff37e337 | 2072 | |
e97275cb | 2073 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
ae8d2858 | 2074 | r = ath_start_rfkill_poll(sc); |
500c064d | 2075 | #endif |
141b38b6 S |
2076 | |
2077 | mutex_unlock: | |
2078 | mutex_unlock(&sc->mutex); | |
2079 | ||
ae8d2858 | 2080 | return r; |
f078f209 LR |
2081 | } |
2082 | ||
8feceb67 VT |
2083 | static int ath9k_tx(struct ieee80211_hw *hw, |
2084 | struct sk_buff *skb) | |
f078f209 | 2085 | { |
528f0c6b | 2086 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
bce048d7 JM |
2087 | struct ath_wiphy *aphy = hw->priv; |
2088 | struct ath_softc *sc = aphy->sc; | |
528f0c6b | 2089 | struct ath_tx_control txctl; |
8feceb67 | 2090 | int hdrlen, padsize; |
528f0c6b | 2091 | |
8089cc47 | 2092 | if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) { |
ee166a0e JM |
2093 | printk(KERN_DEBUG "ath9k: %s: TX in unexpected wiphy state " |
2094 | "%d\n", wiphy_name(hw->wiphy), aphy->state); | |
2095 | goto exit; | |
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 | ||
4e30ffa2 VN |
2260 | /* |
2261 | * Some hardware processes the TIM IE and fires an | |
2262 | * interrupt when the TIM bit is set. For hardware | |
2263 | * that does, if not overridden by configuration, | |
2264 | * enable the TIM interrupt when operating as station. | |
2265 | */ | |
2660b81a | 2266 | if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_ENHANCEDPM) && |
4e30ffa2 | 2267 | (conf->type == NL80211_IFTYPE_STATION) && |
17d7904d S |
2268 | !sc->config.swBeaconProcess) |
2269 | sc->imask |= ATH9K_INT_TIM; | |
4e30ffa2 | 2270 | |
17d7904d | 2271 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
4e30ffa2 | 2272 | |
6f255425 LR |
2273 | if (conf->type == NL80211_IFTYPE_AP) { |
2274 | /* TODO: is this a suitable place to start ANI for AP mode? */ | |
2275 | /* Start ANI */ | |
17d7904d | 2276 | mod_timer(&sc->ani.timer, |
6f255425 LR |
2277 | jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); |
2278 | } | |
2279 | ||
2c3db3d5 | 2280 | out: |
141b38b6 | 2281 | mutex_unlock(&sc->mutex); |
2c3db3d5 | 2282 | return ret; |
f078f209 LR |
2283 | } |
2284 | ||
8feceb67 VT |
2285 | static void ath9k_remove_interface(struct ieee80211_hw *hw, |
2286 | struct ieee80211_if_init_conf *conf) | |
f078f209 | 2287 | { |
bce048d7 JM |
2288 | struct ath_wiphy *aphy = hw->priv; |
2289 | struct ath_softc *sc = aphy->sc; | |
17d7904d | 2290 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
2c3db3d5 | 2291 | int i; |
f078f209 | 2292 | |
04bd4638 | 2293 | DPRINTF(sc, ATH_DBG_CONFIG, "Detach Interface\n"); |
f078f209 | 2294 | |
141b38b6 S |
2295 | mutex_lock(&sc->mutex); |
2296 | ||
6f255425 | 2297 | /* Stop ANI */ |
17d7904d | 2298 | del_timer_sync(&sc->ani.timer); |
580f0b8a | 2299 | |
8feceb67 | 2300 | /* Reclaim beacon resources */ |
9cb5412b PE |
2301 | if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) || |
2302 | (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) || | |
2303 | (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) { | |
b77f483f | 2304 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
8feceb67 | 2305 | ath_beacon_return(sc, avp); |
580f0b8a | 2306 | } |
f078f209 | 2307 | |
8feceb67 | 2308 | sc->sc_flags &= ~SC_OP_BEACONS; |
f078f209 | 2309 | |
2c3db3d5 JM |
2310 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
2311 | if (sc->beacon.bslot[i] == conf->vif) { | |
2312 | printk(KERN_DEBUG "%s: vif had allocated beacon " | |
2313 | "slot\n", __func__); | |
2314 | sc->beacon.bslot[i] = NULL; | |
c52f33d0 | 2315 | sc->beacon.bslot_aphy[i] = NULL; |
2c3db3d5 JM |
2316 | } |
2317 | } | |
2318 | ||
17d7904d | 2319 | sc->nvifs--; |
141b38b6 S |
2320 | |
2321 | mutex_unlock(&sc->mutex); | |
f078f209 LR |
2322 | } |
2323 | ||
e8975581 | 2324 | static int ath9k_config(struct ieee80211_hw *hw, u32 changed) |
f078f209 | 2325 | { |
bce048d7 JM |
2326 | struct ath_wiphy *aphy = hw->priv; |
2327 | struct ath_softc *sc = aphy->sc; | |
e8975581 | 2328 | struct ieee80211_conf *conf = &hw->conf; |
f078f209 | 2329 | |
aa33de09 | 2330 | mutex_lock(&sc->mutex); |
141b38b6 | 2331 | |
3cbb5dd7 VN |
2332 | if (changed & IEEE80211_CONF_CHANGE_PS) { |
2333 | if (conf->flags & IEEE80211_CONF_PS) { | |
17d7904d S |
2334 | if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { |
2335 | sc->imask |= ATH9K_INT_TIM_TIMER; | |
3cbb5dd7 | 2336 | ath9k_hw_set_interrupts(sc->sc_ah, |
17d7904d | 2337 | sc->imask); |
3cbb5dd7 VN |
2338 | } |
2339 | ath9k_hw_setrxabort(sc->sc_ah, 1); | |
2340 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); | |
2341 | } else { | |
2342 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); | |
2343 | ath9k_hw_setrxabort(sc->sc_ah, 0); | |
2344 | sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON; | |
17d7904d S |
2345 | if (sc->imask & ATH9K_INT_TIM_TIMER) { |
2346 | sc->imask &= ~ATH9K_INT_TIM_TIMER; | |
3cbb5dd7 | 2347 | ath9k_hw_set_interrupts(sc->sc_ah, |
17d7904d | 2348 | sc->imask); |
3cbb5dd7 VN |
2349 | } |
2350 | } | |
2351 | } | |
2352 | ||
4797938c | 2353 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
99405f93 | 2354 | struct ieee80211_channel *curchan = hw->conf.channel; |
5f8e077c | 2355 | int pos = curchan->hw_value; |
ae5eb026 | 2356 | |
0e2dedf9 JM |
2357 | aphy->chan_idx = pos; |
2358 | aphy->chan_is_ht = conf_is_ht(conf); | |
2359 | ||
8089cc47 JM |
2360 | if (aphy->state == ATH_WIPHY_SCAN || |
2361 | aphy->state == ATH_WIPHY_ACTIVE) | |
2362 | ath9k_wiphy_pause_all_forced(sc, aphy); | |
2363 | else { | |
2364 | /* | |
2365 | * Do not change operational channel based on a paused | |
2366 | * wiphy changes. | |
2367 | */ | |
2368 | goto skip_chan_change; | |
2369 | } | |
0e2dedf9 | 2370 | |
04bd4638 S |
2371 | DPRINTF(sc, ATH_DBG_CONFIG, "Set channel: %d MHz\n", |
2372 | curchan->center_freq); | |
f078f209 | 2373 | |
5f8e077c | 2374 | /* XXX: remove me eventualy */ |
0e2dedf9 | 2375 | ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]); |
e11602b7 | 2376 | |
ecf70441 | 2377 | ath_update_chainmask(sc, conf_is_ht(conf)); |
86060f0d | 2378 | |
0e2dedf9 | 2379 | if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { |
04bd4638 | 2380 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n"); |
aa33de09 | 2381 | mutex_unlock(&sc->mutex); |
e11602b7 S |
2382 | return -EINVAL; |
2383 | } | |
094d05dc | 2384 | } |
f078f209 | 2385 | |
8089cc47 | 2386 | skip_chan_change: |
5c020dc6 | 2387 | if (changed & IEEE80211_CONF_CHANGE_POWER) |
17d7904d | 2388 | sc->config.txpowlimit = 2 * conf->power_level; |
f078f209 | 2389 | |
b238e90e S |
2390 | /* |
2391 | * The HW TSF has to be reset when the beacon interval changes. | |
2392 | * We set the flag here, and ath_beacon_config_ap() would take this | |
2393 | * into account when it gets called through the subsequent | |
2394 | * config_interface() call - with IFCC_BEACON in the changed field. | |
2395 | */ | |
2396 | ||
2397 | if (changed & IEEE80211_CONF_CHANGE_BEACON_INTERVAL) | |
2398 | sc->sc_flags |= SC_OP_TSF_RESET; | |
2399 | ||
aa33de09 | 2400 | mutex_unlock(&sc->mutex); |
141b38b6 | 2401 | |
f078f209 LR |
2402 | return 0; |
2403 | } | |
2404 | ||
8feceb67 VT |
2405 | static int ath9k_config_interface(struct ieee80211_hw *hw, |
2406 | struct ieee80211_vif *vif, | |
2407 | struct ieee80211_if_conf *conf) | |
c83be688 | 2408 | { |
bce048d7 JM |
2409 | struct ath_wiphy *aphy = hw->priv; |
2410 | struct ath_softc *sc = aphy->sc; | |
cbe61d8a | 2411 | struct ath_hw *ah = sc->sc_ah; |
17d7904d | 2412 | struct ath_vif *avp = (void *)vif->drv_priv; |
8feceb67 VT |
2413 | u32 rfilt = 0; |
2414 | int error, i; | |
c83be688 | 2415 | |
2554935b S |
2416 | mutex_lock(&sc->mutex); |
2417 | ||
8feceb67 VT |
2418 | /* TODO: Need to decide which hw opmode to use for multi-interface |
2419 | * cases */ | |
05c914fe | 2420 | if (vif->type == NL80211_IFTYPE_AP && |
2660b81a S |
2421 | ah->opmode != NL80211_IFTYPE_AP) { |
2422 | ah->opmode = NL80211_IFTYPE_STATION; | |
8feceb67 | 2423 | ath9k_hw_setopmode(ah); |
ba52da58 S |
2424 | memcpy(sc->curbssid, sc->sc_ah->macaddr, ETH_ALEN); |
2425 | sc->curaid = 0; | |
2426 | ath9k_hw_write_associd(sc); | |
8feceb67 VT |
2427 | /* Request full reset to get hw opmode changed properly */ |
2428 | sc->sc_flags |= SC_OP_FULL_RESET; | |
2429 | } | |
c83be688 | 2430 | |
8feceb67 VT |
2431 | if ((conf->changed & IEEE80211_IFCC_BSSID) && |
2432 | !is_zero_ether_addr(conf->bssid)) { | |
2433 | switch (vif->type) { | |
05c914fe JB |
2434 | case NL80211_IFTYPE_STATION: |
2435 | case NL80211_IFTYPE_ADHOC: | |
9cb5412b | 2436 | case NL80211_IFTYPE_MESH_POINT: |
8feceb67 | 2437 | /* Set BSSID */ |
17d7904d | 2438 | memcpy(sc->curbssid, conf->bssid, ETH_ALEN); |
f0ed85c6 | 2439 | memcpy(avp->bssid, conf->bssid, ETH_ALEN); |
17d7904d | 2440 | sc->curaid = 0; |
ba52da58 | 2441 | ath9k_hw_write_associd(sc); |
c83be688 | 2442 | |
8feceb67 | 2443 | /* Set aggregation protection mode parameters */ |
17d7904d | 2444 | sc->config.ath_aggr_prot = 0; |
c83be688 | 2445 | |
8feceb67 | 2446 | DPRINTF(sc, ATH_DBG_CONFIG, |
04bd4638 | 2447 | "RX filter 0x%x bssid %pM aid 0x%x\n", |
17d7904d | 2448 | rfilt, sc->curbssid, sc->curaid); |
c83be688 | 2449 | |
8feceb67 VT |
2450 | /* need to reconfigure the beacon */ |
2451 | sc->sc_flags &= ~SC_OP_BEACONS ; | |
c83be688 | 2452 | |
8feceb67 VT |
2453 | break; |
2454 | default: | |
2455 | break; | |
2456 | } | |
2457 | } | |
c83be688 | 2458 | |
1f7d6cbf | 2459 | if ((vif->type == NL80211_IFTYPE_ADHOC) || |
9cb5412b PE |
2460 | (vif->type == NL80211_IFTYPE_AP) || |
2461 | (vif->type == NL80211_IFTYPE_MESH_POINT)) { | |
1f7d6cbf S |
2462 | if ((conf->changed & IEEE80211_IFCC_BEACON) || |
2463 | (conf->changed & IEEE80211_IFCC_BEACON_ENABLED && | |
2464 | conf->enable_beacon)) { | |
2465 | /* | |
2466 | * Allocate and setup the beacon frame. | |
2467 | * | |
2468 | * Stop any previous beacon DMA. This may be | |
2469 | * necessary, for example, when an ibss merge | |
2470 | * causes reconfiguration; we may be called | |
2471 | * with beacon transmission active. | |
2472 | */ | |
2473 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); | |
c83be688 | 2474 | |
c52f33d0 | 2475 | error = ath_beacon_alloc(aphy, vif); |
2554935b S |
2476 | if (error != 0) { |
2477 | mutex_unlock(&sc->mutex); | |
1f7d6cbf | 2478 | return error; |
2554935b | 2479 | } |
c83be688 | 2480 | |
2c3db3d5 | 2481 | ath_beacon_config(sc, vif); |
1f7d6cbf | 2482 | } |
8feceb67 | 2483 | } |
c83be688 | 2484 | |
8feceb67 | 2485 | /* Check for WLAN_CAPABILITY_PRIVACY ? */ |
d97809db | 2486 | if ((avp->av_opmode != NL80211_IFTYPE_STATION)) { |
8feceb67 VT |
2487 | for (i = 0; i < IEEE80211_WEP_NKID; i++) |
2488 | if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i)) | |
2489 | ath9k_hw_keysetmac(sc->sc_ah, | |
2490 | (u16)i, | |
17d7904d | 2491 | sc->curbssid); |
8feceb67 | 2492 | } |
c83be688 | 2493 | |
8feceb67 | 2494 | /* Only legacy IBSS for now */ |
05c914fe | 2495 | if (vif->type == NL80211_IFTYPE_ADHOC) |
8feceb67 | 2496 | ath_update_chainmask(sc, 0); |
f078f209 | 2497 | |
2554935b S |
2498 | mutex_unlock(&sc->mutex); |
2499 | ||
8feceb67 VT |
2500 | return 0; |
2501 | } | |
f078f209 | 2502 | |
8feceb67 VT |
2503 | #define SUPPORTED_FILTERS \ |
2504 | (FIF_PROMISC_IN_BSS | \ | |
2505 | FIF_ALLMULTI | \ | |
2506 | FIF_CONTROL | \ | |
2507 | FIF_OTHER_BSS | \ | |
2508 | FIF_BCN_PRBRESP_PROMISC | \ | |
2509 | FIF_FCSFAIL) | |
c83be688 | 2510 | |
8feceb67 VT |
2511 | /* FIXME: sc->sc_full_reset ? */ |
2512 | static void ath9k_configure_filter(struct ieee80211_hw *hw, | |
2513 | unsigned int changed_flags, | |
2514 | unsigned int *total_flags, | |
2515 | int mc_count, | |
2516 | struct dev_mc_list *mclist) | |
2517 | { | |
bce048d7 JM |
2518 | struct ath_wiphy *aphy = hw->priv; |
2519 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2520 | u32 rfilt; |
f078f209 | 2521 | |
8feceb67 VT |
2522 | changed_flags &= SUPPORTED_FILTERS; |
2523 | *total_flags &= SUPPORTED_FILTERS; | |
f078f209 | 2524 | |
b77f483f | 2525 | sc->rx.rxfilter = *total_flags; |
8feceb67 VT |
2526 | rfilt = ath_calcrxfilter(sc); |
2527 | ath9k_hw_setrxfilter(sc->sc_ah, rfilt); | |
f078f209 | 2528 | |
b77f483f | 2529 | DPRINTF(sc, ATH_DBG_CONFIG, "Set HW RX filter: 0x%x\n", sc->rx.rxfilter); |
8feceb67 | 2530 | } |
f078f209 | 2531 | |
8feceb67 VT |
2532 | static void ath9k_sta_notify(struct ieee80211_hw *hw, |
2533 | struct ieee80211_vif *vif, | |
2534 | enum sta_notify_cmd cmd, | |
17741cdc | 2535 | struct ieee80211_sta *sta) |
8feceb67 | 2536 | { |
bce048d7 JM |
2537 | struct ath_wiphy *aphy = hw->priv; |
2538 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2539 | |
8feceb67 VT |
2540 | switch (cmd) { |
2541 | case STA_NOTIFY_ADD: | |
5640b08e | 2542 | ath_node_attach(sc, sta); |
8feceb67 VT |
2543 | break; |
2544 | case STA_NOTIFY_REMOVE: | |
b5aa9bf9 | 2545 | ath_node_detach(sc, sta); |
8feceb67 VT |
2546 | break; |
2547 | default: | |
2548 | break; | |
2549 | } | |
f078f209 LR |
2550 | } |
2551 | ||
141b38b6 | 2552 | static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
8feceb67 | 2553 | const struct ieee80211_tx_queue_params *params) |
f078f209 | 2554 | { |
bce048d7 JM |
2555 | struct ath_wiphy *aphy = hw->priv; |
2556 | struct ath_softc *sc = aphy->sc; | |
8feceb67 VT |
2557 | struct ath9k_tx_queue_info qi; |
2558 | int ret = 0, qnum; | |
f078f209 | 2559 | |
8feceb67 VT |
2560 | if (queue >= WME_NUM_AC) |
2561 | return 0; | |
f078f209 | 2562 | |
141b38b6 S |
2563 | mutex_lock(&sc->mutex); |
2564 | ||
8feceb67 VT |
2565 | qi.tqi_aifs = params->aifs; |
2566 | qi.tqi_cwmin = params->cw_min; | |
2567 | qi.tqi_cwmax = params->cw_max; | |
2568 | qi.tqi_burstTime = params->txop; | |
2569 | qnum = ath_get_hal_qnum(queue, sc); | |
f078f209 | 2570 | |
8feceb67 | 2571 | DPRINTF(sc, ATH_DBG_CONFIG, |
04bd4638 | 2572 | "Configure tx [queue/halq] [%d/%d], " |
8feceb67 | 2573 | "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", |
04bd4638 S |
2574 | queue, qnum, params->aifs, params->cw_min, |
2575 | params->cw_max, params->txop); | |
f078f209 | 2576 | |
8feceb67 VT |
2577 | ret = ath_txq_update(sc, qnum, &qi); |
2578 | if (ret) | |
04bd4638 | 2579 | DPRINTF(sc, ATH_DBG_FATAL, "TXQ Update failed\n"); |
f078f209 | 2580 | |
141b38b6 S |
2581 | mutex_unlock(&sc->mutex); |
2582 | ||
8feceb67 VT |
2583 | return ret; |
2584 | } | |
f078f209 | 2585 | |
8feceb67 VT |
2586 | static int ath9k_set_key(struct ieee80211_hw *hw, |
2587 | enum set_key_cmd cmd, | |
dc822b5d JB |
2588 | struct ieee80211_vif *vif, |
2589 | struct ieee80211_sta *sta, | |
8feceb67 VT |
2590 | struct ieee80211_key_conf *key) |
2591 | { | |
bce048d7 JM |
2592 | struct ath_wiphy *aphy = hw->priv; |
2593 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2594 | int ret = 0; |
f078f209 | 2595 | |
b3bd89ce JM |
2596 | if (modparam_nohwcrypt) |
2597 | return -ENOSPC; | |
2598 | ||
141b38b6 | 2599 | mutex_lock(&sc->mutex); |
3cbb5dd7 | 2600 | ath9k_ps_wakeup(sc); |
04bd4638 | 2601 | DPRINTF(sc, ATH_DBG_KEYCACHE, "Set HW Key\n"); |
f078f209 | 2602 | |
8feceb67 VT |
2603 | switch (cmd) { |
2604 | case SET_KEY: | |
3f53dd64 | 2605 | ret = ath_key_config(sc, vif, sta, key); |
6ace2891 JM |
2606 | if (ret >= 0) { |
2607 | key->hw_key_idx = ret; | |
8feceb67 VT |
2608 | /* push IV and Michael MIC generation to stack */ |
2609 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
2610 | if (key->alg == ALG_TKIP) | |
2611 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
0ced0e17 JM |
2612 | if (sc->sc_ah->sw_mgmt_crypto && key->alg == ALG_CCMP) |
2613 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; | |
6ace2891 | 2614 | ret = 0; |
8feceb67 VT |
2615 | } |
2616 | break; | |
2617 | case DISABLE_KEY: | |
2618 | ath_key_delete(sc, key); | |
8feceb67 VT |
2619 | break; |
2620 | default: | |
2621 | ret = -EINVAL; | |
2622 | } | |
f078f209 | 2623 | |
3cbb5dd7 | 2624 | ath9k_ps_restore(sc); |
141b38b6 S |
2625 | mutex_unlock(&sc->mutex); |
2626 | ||
8feceb67 VT |
2627 | return ret; |
2628 | } | |
f078f209 | 2629 | |
8feceb67 VT |
2630 | static void ath9k_bss_info_changed(struct ieee80211_hw *hw, |
2631 | struct ieee80211_vif *vif, | |
2632 | struct ieee80211_bss_conf *bss_conf, | |
2633 | u32 changed) | |
2634 | { | |
bce048d7 JM |
2635 | struct ath_wiphy *aphy = hw->priv; |
2636 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2637 | |
141b38b6 S |
2638 | mutex_lock(&sc->mutex); |
2639 | ||
8feceb67 | 2640 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
04bd4638 | 2641 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", |
8feceb67 VT |
2642 | bss_conf->use_short_preamble); |
2643 | if (bss_conf->use_short_preamble) | |
2644 | sc->sc_flags |= SC_OP_PREAMBLE_SHORT; | |
2645 | else | |
2646 | sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; | |
2647 | } | |
f078f209 | 2648 | |
8feceb67 | 2649 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
04bd4638 | 2650 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", |
8feceb67 VT |
2651 | bss_conf->use_cts_prot); |
2652 | if (bss_conf->use_cts_prot && | |
2653 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) | |
2654 | sc->sc_flags |= SC_OP_PROTECT_ENABLE; | |
2655 | else | |
2656 | sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; | |
2657 | } | |
f078f209 | 2658 | |
8feceb67 | 2659 | if (changed & BSS_CHANGED_ASSOC) { |
04bd4638 | 2660 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", |
8feceb67 | 2661 | bss_conf->assoc); |
5640b08e | 2662 | ath9k_bss_assoc_info(sc, vif, bss_conf); |
8feceb67 | 2663 | } |
141b38b6 S |
2664 | |
2665 | mutex_unlock(&sc->mutex); | |
8feceb67 | 2666 | } |
f078f209 | 2667 | |
8feceb67 VT |
2668 | static u64 ath9k_get_tsf(struct ieee80211_hw *hw) |
2669 | { | |
2670 | u64 tsf; | |
bce048d7 JM |
2671 | struct ath_wiphy *aphy = hw->priv; |
2672 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2673 | |
141b38b6 S |
2674 | mutex_lock(&sc->mutex); |
2675 | tsf = ath9k_hw_gettsf64(sc->sc_ah); | |
2676 | mutex_unlock(&sc->mutex); | |
f078f209 | 2677 | |
8feceb67 VT |
2678 | return tsf; |
2679 | } | |
f078f209 | 2680 | |
3b5d665b AF |
2681 | static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
2682 | { | |
bce048d7 JM |
2683 | struct ath_wiphy *aphy = hw->priv; |
2684 | struct ath_softc *sc = aphy->sc; | |
3b5d665b | 2685 | |
141b38b6 S |
2686 | mutex_lock(&sc->mutex); |
2687 | ath9k_hw_settsf64(sc->sc_ah, tsf); | |
2688 | mutex_unlock(&sc->mutex); | |
3b5d665b AF |
2689 | } |
2690 | ||
8feceb67 VT |
2691 | static void ath9k_reset_tsf(struct ieee80211_hw *hw) |
2692 | { | |
bce048d7 JM |
2693 | struct ath_wiphy *aphy = hw->priv; |
2694 | struct ath_softc *sc = aphy->sc; | |
c83be688 | 2695 | |
141b38b6 S |
2696 | mutex_lock(&sc->mutex); |
2697 | ath9k_hw_reset_tsf(sc->sc_ah); | |
2698 | mutex_unlock(&sc->mutex); | |
8feceb67 | 2699 | } |
f078f209 | 2700 | |
8feceb67 | 2701 | static int ath9k_ampdu_action(struct ieee80211_hw *hw, |
141b38b6 S |
2702 | enum ieee80211_ampdu_mlme_action action, |
2703 | struct ieee80211_sta *sta, | |
2704 | u16 tid, u16 *ssn) | |
8feceb67 | 2705 | { |
bce048d7 JM |
2706 | struct ath_wiphy *aphy = hw->priv; |
2707 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2708 | int ret = 0; |
f078f209 | 2709 | |
8feceb67 VT |
2710 | switch (action) { |
2711 | case IEEE80211_AMPDU_RX_START: | |
dca3edb8 S |
2712 | if (!(sc->sc_flags & SC_OP_RXAGGR)) |
2713 | ret = -ENOTSUPP; | |
8feceb67 VT |
2714 | break; |
2715 | case IEEE80211_AMPDU_RX_STOP: | |
8feceb67 VT |
2716 | break; |
2717 | case IEEE80211_AMPDU_TX_START: | |
b5aa9bf9 | 2718 | ret = ath_tx_aggr_start(sc, sta, tid, ssn); |
8feceb67 VT |
2719 | if (ret < 0) |
2720 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 2721 | "Unable to start TX aggregation\n"); |
8feceb67 | 2722 | else |
17741cdc | 2723 | ieee80211_start_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
8feceb67 VT |
2724 | break; |
2725 | case IEEE80211_AMPDU_TX_STOP: | |
b5aa9bf9 | 2726 | ret = ath_tx_aggr_stop(sc, sta, tid); |
8feceb67 VT |
2727 | if (ret < 0) |
2728 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 2729 | "Unable to stop TX aggregation\n"); |
f078f209 | 2730 | |
17741cdc | 2731 | ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
8feceb67 | 2732 | break; |
8469cdef S |
2733 | case IEEE80211_AMPDU_TX_RESUME: |
2734 | ath_tx_aggr_resume(sc, sta, tid); | |
2735 | break; | |
8feceb67 | 2736 | default: |
04bd4638 | 2737 | DPRINTF(sc, ATH_DBG_FATAL, "Unknown AMPDU action\n"); |
8feceb67 VT |
2738 | } |
2739 | ||
2740 | return ret; | |
f078f209 LR |
2741 | } |
2742 | ||
0c98de65 S |
2743 | static void ath9k_sw_scan_start(struct ieee80211_hw *hw) |
2744 | { | |
bce048d7 JM |
2745 | struct ath_wiphy *aphy = hw->priv; |
2746 | struct ath_softc *sc = aphy->sc; | |
0c98de65 | 2747 | |
8089cc47 JM |
2748 | if (ath9k_wiphy_scanning(sc)) { |
2749 | printk(KERN_DEBUG "ath9k: Two wiphys trying to scan at the " | |
2750 | "same time\n"); | |
2751 | /* | |
2752 | * Do not allow the concurrent scanning state for now. This | |
2753 | * could be improved with scanning control moved into ath9k. | |
2754 | */ | |
2755 | return; | |
2756 | } | |
2757 | ||
2758 | aphy->state = ATH_WIPHY_SCAN; | |
2759 | ath9k_wiphy_pause_all_forced(sc, aphy); | |
2760 | ||
0c98de65 S |
2761 | mutex_lock(&sc->mutex); |
2762 | sc->sc_flags |= SC_OP_SCANNING; | |
2763 | mutex_unlock(&sc->mutex); | |
2764 | } | |
2765 | ||
2766 | static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) | |
2767 | { | |
bce048d7 JM |
2768 | struct ath_wiphy *aphy = hw->priv; |
2769 | struct ath_softc *sc = aphy->sc; | |
0c98de65 S |
2770 | |
2771 | mutex_lock(&sc->mutex); | |
8089cc47 | 2772 | aphy->state = ATH_WIPHY_ACTIVE; |
0c98de65 S |
2773 | sc->sc_flags &= ~SC_OP_SCANNING; |
2774 | mutex_unlock(&sc->mutex); | |
2775 | } | |
2776 | ||
6baff7f9 | 2777 | struct ieee80211_ops ath9k_ops = { |
8feceb67 VT |
2778 | .tx = ath9k_tx, |
2779 | .start = ath9k_start, | |
2780 | .stop = ath9k_stop, | |
2781 | .add_interface = ath9k_add_interface, | |
2782 | .remove_interface = ath9k_remove_interface, | |
2783 | .config = ath9k_config, | |
2784 | .config_interface = ath9k_config_interface, | |
2785 | .configure_filter = ath9k_configure_filter, | |
8feceb67 VT |
2786 | .sta_notify = ath9k_sta_notify, |
2787 | .conf_tx = ath9k_conf_tx, | |
8feceb67 | 2788 | .bss_info_changed = ath9k_bss_info_changed, |
8feceb67 | 2789 | .set_key = ath9k_set_key, |
8feceb67 | 2790 | .get_tsf = ath9k_get_tsf, |
3b5d665b | 2791 | .set_tsf = ath9k_set_tsf, |
8feceb67 | 2792 | .reset_tsf = ath9k_reset_tsf, |
4233df6b | 2793 | .ampdu_action = ath9k_ampdu_action, |
0c98de65 S |
2794 | .sw_scan_start = ath9k_sw_scan_start, |
2795 | .sw_scan_complete = ath9k_sw_scan_complete, | |
8feceb67 VT |
2796 | }; |
2797 | ||
392dff83 BP |
2798 | static struct { |
2799 | u32 version; | |
2800 | const char * name; | |
2801 | } ath_mac_bb_names[] = { | |
2802 | { AR_SREV_VERSION_5416_PCI, "5416" }, | |
2803 | { AR_SREV_VERSION_5416_PCIE, "5418" }, | |
2804 | { AR_SREV_VERSION_9100, "9100" }, | |
2805 | { AR_SREV_VERSION_9160, "9160" }, | |
2806 | { AR_SREV_VERSION_9280, "9280" }, | |
2807 | { AR_SREV_VERSION_9285, "9285" } | |
2808 | }; | |
2809 | ||
2810 | static struct { | |
2811 | u16 version; | |
2812 | const char * name; | |
2813 | } ath_rf_names[] = { | |
2814 | { 0, "5133" }, | |
2815 | { AR_RAD5133_SREV_MAJOR, "5133" }, | |
2816 | { AR_RAD5122_SREV_MAJOR, "5122" }, | |
2817 | { AR_RAD2133_SREV_MAJOR, "2133" }, | |
2818 | { AR_RAD2122_SREV_MAJOR, "2122" } | |
2819 | }; | |
2820 | ||
2821 | /* | |
2822 | * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown. | |
2823 | */ | |
6baff7f9 | 2824 | const char * |
392dff83 BP |
2825 | ath_mac_bb_name(u32 mac_bb_version) |
2826 | { | |
2827 | int i; | |
2828 | ||
2829 | for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) { | |
2830 | if (ath_mac_bb_names[i].version == mac_bb_version) { | |
2831 | return ath_mac_bb_names[i].name; | |
2832 | } | |
2833 | } | |
2834 | ||
2835 | return "????"; | |
2836 | } | |
2837 | ||
2838 | /* | |
2839 | * Return the RF name. "????" is returned if the RF is unknown. | |
2840 | */ | |
6baff7f9 | 2841 | const char * |
392dff83 BP |
2842 | ath_rf_name(u16 rf_version) |
2843 | { | |
2844 | int i; | |
2845 | ||
2846 | for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) { | |
2847 | if (ath_rf_names[i].version == rf_version) { | |
2848 | return ath_rf_names[i].name; | |
2849 | } | |
2850 | } | |
2851 | ||
2852 | return "????"; | |
2853 | } | |
2854 | ||
6baff7f9 | 2855 | static int __init ath9k_init(void) |
f078f209 | 2856 | { |
ca8a8560 VT |
2857 | int error; |
2858 | ||
ca8a8560 VT |
2859 | /* Register rate control algorithm */ |
2860 | error = ath_rate_control_register(); | |
2861 | if (error != 0) { | |
2862 | printk(KERN_ERR | |
b51bb3cd LR |
2863 | "ath9k: Unable to register rate control " |
2864 | "algorithm: %d\n", | |
ca8a8560 | 2865 | error); |
6baff7f9 | 2866 | goto err_out; |
ca8a8560 VT |
2867 | } |
2868 | ||
19d8bc22 GJ |
2869 | error = ath9k_debug_create_root(); |
2870 | if (error) { | |
2871 | printk(KERN_ERR | |
2872 | "ath9k: Unable to create debugfs root: %d\n", | |
2873 | error); | |
2874 | goto err_rate_unregister; | |
2875 | } | |
2876 | ||
6baff7f9 GJ |
2877 | error = ath_pci_init(); |
2878 | if (error < 0) { | |
f078f209 | 2879 | printk(KERN_ERR |
b51bb3cd | 2880 | "ath9k: No PCI devices found, driver not installed.\n"); |
6baff7f9 | 2881 | error = -ENODEV; |
19d8bc22 | 2882 | goto err_remove_root; |
f078f209 LR |
2883 | } |
2884 | ||
09329d37 GJ |
2885 | error = ath_ahb_init(); |
2886 | if (error < 0) { | |
2887 | error = -ENODEV; | |
2888 | goto err_pci_exit; | |
2889 | } | |
2890 | ||
f078f209 | 2891 | return 0; |
6baff7f9 | 2892 | |
09329d37 GJ |
2893 | err_pci_exit: |
2894 | ath_pci_exit(); | |
2895 | ||
19d8bc22 GJ |
2896 | err_remove_root: |
2897 | ath9k_debug_remove_root(); | |
6baff7f9 GJ |
2898 | err_rate_unregister: |
2899 | ath_rate_control_unregister(); | |
2900 | err_out: | |
2901 | return error; | |
f078f209 | 2902 | } |
6baff7f9 | 2903 | module_init(ath9k_init); |
f078f209 | 2904 | |
6baff7f9 | 2905 | static void __exit ath9k_exit(void) |
f078f209 | 2906 | { |
09329d37 | 2907 | ath_ahb_exit(); |
6baff7f9 | 2908 | ath_pci_exit(); |
19d8bc22 | 2909 | ath9k_debug_remove_root(); |
ca8a8560 | 2910 | ath_rate_control_unregister(); |
04bd4638 | 2911 | printk(KERN_INFO "%s: Driver unloaded\n", dev_info); |
f078f209 | 2912 | } |
6baff7f9 | 2913 | module_exit(ath9k_exit); |