Commit | Line | Data |
---|---|---|
f078f209 LR |
1 | /* |
2 | * Copyright (c) 2008 Atheros Communications Inc. | |
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; | |
943 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, | |
944 | (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0); | |
945 | ||
946 | queue_delayed_work(sc->hw->workqueue, &sc->ath_led_blink_work, | |
947 | (sc->sc_flags & SC_OP_LED_ON) ? | |
948 | msecs_to_jiffies(sc->led_off_duration) : | |
949 | msecs_to_jiffies(sc->led_on_duration)); | |
950 | ||
951 | sc->led_on_duration = | |
952 | max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25); | |
953 | sc->led_off_duration = | |
954 | max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10); | |
955 | sc->led_on_cnt = sc->led_off_cnt = 0; | |
956 | if (sc->sc_flags & SC_OP_LED_ON) | |
957 | sc->sc_flags &= ~SC_OP_LED_ON; | |
958 | else | |
959 | sc->sc_flags |= SC_OP_LED_ON; | |
960 | } | |
961 | ||
8feceb67 VT |
962 | static void ath_led_brightness(struct led_classdev *led_cdev, |
963 | enum led_brightness brightness) | |
964 | { | |
965 | struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev); | |
966 | struct ath_softc *sc = led->sc; | |
f078f209 | 967 | |
8feceb67 VT |
968 | switch (brightness) { |
969 | case LED_OFF: | |
970 | if (led->led_type == ATH_LED_ASSOC || | |
f2bffa7e VT |
971 | led->led_type == ATH_LED_RADIO) { |
972 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, | |
973 | (led->led_type == ATH_LED_RADIO)); | |
8feceb67 | 974 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; |
f2bffa7e VT |
975 | if (led->led_type == ATH_LED_RADIO) |
976 | sc->sc_flags &= ~SC_OP_LED_ON; | |
977 | } else { | |
978 | sc->led_off_cnt++; | |
979 | } | |
8feceb67 VT |
980 | break; |
981 | case LED_FULL: | |
f2bffa7e | 982 | if (led->led_type == ATH_LED_ASSOC) { |
8feceb67 | 983 | sc->sc_flags |= SC_OP_LED_ASSOCIATED; |
f2bffa7e VT |
984 | queue_delayed_work(sc->hw->workqueue, |
985 | &sc->ath_led_blink_work, 0); | |
986 | } else if (led->led_type == ATH_LED_RADIO) { | |
987 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0); | |
988 | sc->sc_flags |= SC_OP_LED_ON; | |
989 | } else { | |
990 | sc->led_on_cnt++; | |
991 | } | |
8feceb67 VT |
992 | break; |
993 | default: | |
994 | break; | |
f078f209 | 995 | } |
8feceb67 | 996 | } |
f078f209 | 997 | |
8feceb67 VT |
998 | static int ath_register_led(struct ath_softc *sc, struct ath_led *led, |
999 | char *trigger) | |
1000 | { | |
1001 | int ret; | |
f078f209 | 1002 | |
8feceb67 VT |
1003 | led->sc = sc; |
1004 | led->led_cdev.name = led->name; | |
1005 | led->led_cdev.default_trigger = trigger; | |
1006 | led->led_cdev.brightness_set = ath_led_brightness; | |
f078f209 | 1007 | |
8feceb67 VT |
1008 | ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev); |
1009 | if (ret) | |
1010 | DPRINTF(sc, ATH_DBG_FATAL, | |
1011 | "Failed to register led:%s", led->name); | |
1012 | else | |
1013 | led->registered = 1; | |
1014 | return ret; | |
1015 | } | |
f078f209 | 1016 | |
8feceb67 VT |
1017 | static void ath_unregister_led(struct ath_led *led) |
1018 | { | |
1019 | if (led->registered) { | |
1020 | led_classdev_unregister(&led->led_cdev); | |
1021 | led->registered = 0; | |
f078f209 | 1022 | } |
f078f209 LR |
1023 | } |
1024 | ||
8feceb67 | 1025 | static void ath_deinit_leds(struct ath_softc *sc) |
f078f209 | 1026 | { |
f2bffa7e | 1027 | cancel_delayed_work_sync(&sc->ath_led_blink_work); |
8feceb67 VT |
1028 | ath_unregister_led(&sc->assoc_led); |
1029 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; | |
1030 | ath_unregister_led(&sc->tx_led); | |
1031 | ath_unregister_led(&sc->rx_led); | |
1032 | ath_unregister_led(&sc->radio_led); | |
1033 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); | |
1034 | } | |
f078f209 | 1035 | |
8feceb67 VT |
1036 | static void ath_init_leds(struct ath_softc *sc) |
1037 | { | |
1038 | char *trigger; | |
1039 | int ret; | |
f078f209 | 1040 | |
8feceb67 VT |
1041 | /* Configure gpio 1 for output */ |
1042 | ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN, | |
1043 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | |
1044 | /* LED off, active low */ | |
1045 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); | |
7dcfdcd9 | 1046 | |
f2bffa7e VT |
1047 | INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work); |
1048 | ||
8feceb67 VT |
1049 | trigger = ieee80211_get_radio_led_name(sc->hw); |
1050 | snprintf(sc->radio_led.name, sizeof(sc->radio_led.name), | |
0818cb8a | 1051 | "ath9k-%s::radio", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1052 | ret = ath_register_led(sc, &sc->radio_led, trigger); |
1053 | sc->radio_led.led_type = ATH_LED_RADIO; | |
1054 | if (ret) | |
1055 | goto fail; | |
7dcfdcd9 | 1056 | |
8feceb67 VT |
1057 | trigger = ieee80211_get_assoc_led_name(sc->hw); |
1058 | snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name), | |
0818cb8a | 1059 | "ath9k-%s::assoc", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1060 | ret = ath_register_led(sc, &sc->assoc_led, trigger); |
1061 | sc->assoc_led.led_type = ATH_LED_ASSOC; | |
1062 | if (ret) | |
1063 | goto fail; | |
f078f209 | 1064 | |
8feceb67 VT |
1065 | trigger = ieee80211_get_tx_led_name(sc->hw); |
1066 | snprintf(sc->tx_led.name, sizeof(sc->tx_led.name), | |
0818cb8a | 1067 | "ath9k-%s::tx", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1068 | ret = ath_register_led(sc, &sc->tx_led, trigger); |
1069 | sc->tx_led.led_type = ATH_LED_TX; | |
1070 | if (ret) | |
1071 | goto fail; | |
f078f209 | 1072 | |
8feceb67 VT |
1073 | trigger = ieee80211_get_rx_led_name(sc->hw); |
1074 | snprintf(sc->rx_led.name, sizeof(sc->rx_led.name), | |
0818cb8a | 1075 | "ath9k-%s::rx", wiphy_name(sc->hw->wiphy)); |
8feceb67 VT |
1076 | ret = ath_register_led(sc, &sc->rx_led, trigger); |
1077 | sc->rx_led.led_type = ATH_LED_RX; | |
1078 | if (ret) | |
1079 | goto fail; | |
f078f209 | 1080 | |
8feceb67 VT |
1081 | return; |
1082 | ||
1083 | fail: | |
1084 | ath_deinit_leds(sc); | |
f078f209 LR |
1085 | } |
1086 | ||
e97275cb | 1087 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
9c84b797 | 1088 | |
500c064d VT |
1089 | /*******************/ |
1090 | /* Rfkill */ | |
1091 | /*******************/ | |
1092 | ||
1093 | static void ath_radio_enable(struct ath_softc *sc) | |
1094 | { | |
cbe61d8a | 1095 | struct ath_hw *ah = sc->sc_ah; |
ae8d2858 LR |
1096 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
1097 | int r; | |
500c064d | 1098 | |
3cbb5dd7 | 1099 | ath9k_ps_wakeup(sc); |
500c064d | 1100 | spin_lock_bh(&sc->sc_resetlock); |
ae8d2858 | 1101 | |
2660b81a | 1102 | r = ath9k_hw_reset(ah, ah->curchan, false); |
ae8d2858 LR |
1103 | |
1104 | if (r) { | |
500c064d | 1105 | DPRINTF(sc, ATH_DBG_FATAL, |
ae8d2858 LR |
1106 | "Unable to reset channel %u (%uMhz) ", |
1107 | "reset status %u\n", | |
1108 | channel->center_freq, r); | |
500c064d VT |
1109 | } |
1110 | spin_unlock_bh(&sc->sc_resetlock); | |
1111 | ||
1112 | ath_update_txpow(sc); | |
1113 | if (ath_startrecv(sc) != 0) { | |
1114 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1115 | "Unable to restart recv logic\n"); |
500c064d VT |
1116 | return; |
1117 | } | |
1118 | ||
1119 | if (sc->sc_flags & SC_OP_BEACONS) | |
2c3db3d5 | 1120 | ath_beacon_config(sc, NULL); /* restart beacons */ |
500c064d VT |
1121 | |
1122 | /* Re-Enable interrupts */ | |
17d7904d | 1123 | ath9k_hw_set_interrupts(ah, sc->imask); |
500c064d VT |
1124 | |
1125 | /* Enable LED */ | |
1126 | ath9k_hw_cfg_output(ah, ATH_LED_PIN, | |
1127 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | |
1128 | ath9k_hw_set_gpio(ah, ATH_LED_PIN, 0); | |
1129 | ||
1130 | ieee80211_wake_queues(sc->hw); | |
3cbb5dd7 | 1131 | ath9k_ps_restore(sc); |
500c064d VT |
1132 | } |
1133 | ||
1134 | static void ath_radio_disable(struct ath_softc *sc) | |
1135 | { | |
cbe61d8a | 1136 | struct ath_hw *ah = sc->sc_ah; |
ae8d2858 LR |
1137 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
1138 | int r; | |
500c064d | 1139 | |
3cbb5dd7 | 1140 | ath9k_ps_wakeup(sc); |
500c064d VT |
1141 | ieee80211_stop_queues(sc->hw); |
1142 | ||
1143 | /* Disable LED */ | |
1144 | ath9k_hw_set_gpio(ah, ATH_LED_PIN, 1); | |
1145 | ath9k_hw_cfg_gpio_input(ah, ATH_LED_PIN); | |
1146 | ||
1147 | /* Disable interrupts */ | |
1148 | ath9k_hw_set_interrupts(ah, 0); | |
1149 | ||
043a0405 | 1150 | ath_drain_all_txq(sc, false); /* clear pending tx frames */ |
500c064d VT |
1151 | ath_stoprecv(sc); /* turn off frame recv */ |
1152 | ath_flushrecv(sc); /* flush recv queue */ | |
1153 | ||
1154 | spin_lock_bh(&sc->sc_resetlock); | |
2660b81a | 1155 | r = ath9k_hw_reset(ah, ah->curchan, false); |
ae8d2858 | 1156 | if (r) { |
500c064d | 1157 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 1158 | "Unable to reset channel %u (%uMhz) " |
ae8d2858 LR |
1159 | "reset status %u\n", |
1160 | channel->center_freq, r); | |
500c064d VT |
1161 | } |
1162 | spin_unlock_bh(&sc->sc_resetlock); | |
1163 | ||
1164 | ath9k_hw_phy_disable(ah); | |
1165 | ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP); | |
3cbb5dd7 | 1166 | ath9k_ps_restore(sc); |
500c064d VT |
1167 | } |
1168 | ||
1169 | static bool ath_is_rfkill_set(struct ath_softc *sc) | |
1170 | { | |
cbe61d8a | 1171 | struct ath_hw *ah = sc->sc_ah; |
500c064d | 1172 | |
2660b81a S |
1173 | return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == |
1174 | ah->rfkill_polarity; | |
500c064d VT |
1175 | } |
1176 | ||
1177 | /* h/w rfkill poll function */ | |
1178 | static void ath_rfkill_poll(struct work_struct *work) | |
1179 | { | |
1180 | struct ath_softc *sc = container_of(work, struct ath_softc, | |
1181 | rf_kill.rfkill_poll.work); | |
1182 | bool radio_on; | |
1183 | ||
1184 | if (sc->sc_flags & SC_OP_INVALID) | |
1185 | return; | |
1186 | ||
1187 | radio_on = !ath_is_rfkill_set(sc); | |
1188 | ||
1189 | /* | |
1190 | * enable/disable radio only when there is a | |
1191 | * state change in RF switch | |
1192 | */ | |
1193 | if (radio_on == !!(sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED)) { | |
1194 | enum rfkill_state state; | |
1195 | ||
1196 | if (sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED) { | |
1197 | state = radio_on ? RFKILL_STATE_SOFT_BLOCKED | |
1198 | : RFKILL_STATE_HARD_BLOCKED; | |
1199 | } else if (radio_on) { | |
1200 | ath_radio_enable(sc); | |
1201 | state = RFKILL_STATE_UNBLOCKED; | |
1202 | } else { | |
1203 | ath_radio_disable(sc); | |
1204 | state = RFKILL_STATE_HARD_BLOCKED; | |
1205 | } | |
1206 | ||
1207 | if (state == RFKILL_STATE_HARD_BLOCKED) | |
1208 | sc->sc_flags |= SC_OP_RFKILL_HW_BLOCKED; | |
1209 | else | |
1210 | sc->sc_flags &= ~SC_OP_RFKILL_HW_BLOCKED; | |
1211 | ||
1212 | rfkill_force_state(sc->rf_kill.rfkill, state); | |
1213 | } | |
1214 | ||
1215 | queue_delayed_work(sc->hw->workqueue, &sc->rf_kill.rfkill_poll, | |
1216 | msecs_to_jiffies(ATH_RFKILL_POLL_INTERVAL)); | |
1217 | } | |
1218 | ||
1219 | /* s/w rfkill handler */ | |
1220 | static int ath_sw_toggle_radio(void *data, enum rfkill_state state) | |
1221 | { | |
1222 | struct ath_softc *sc = data; | |
1223 | ||
1224 | switch (state) { | |
1225 | case RFKILL_STATE_SOFT_BLOCKED: | |
1226 | if (!(sc->sc_flags & (SC_OP_RFKILL_HW_BLOCKED | | |
1227 | SC_OP_RFKILL_SW_BLOCKED))) | |
1228 | ath_radio_disable(sc); | |
1229 | sc->sc_flags |= SC_OP_RFKILL_SW_BLOCKED; | |
1230 | return 0; | |
1231 | case RFKILL_STATE_UNBLOCKED: | |
1232 | if ((sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED)) { | |
1233 | sc->sc_flags &= ~SC_OP_RFKILL_SW_BLOCKED; | |
1234 | if (sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED) { | |
1235 | DPRINTF(sc, ATH_DBG_FATAL, "Can't turn on the" | |
04bd4638 | 1236 | "radio as it is disabled by h/w\n"); |
500c064d VT |
1237 | return -EPERM; |
1238 | } | |
1239 | ath_radio_enable(sc); | |
1240 | } | |
1241 | return 0; | |
1242 | default: | |
1243 | return -EINVAL; | |
1244 | } | |
1245 | } | |
1246 | ||
1247 | /* Init s/w rfkill */ | |
1248 | static int ath_init_sw_rfkill(struct ath_softc *sc) | |
1249 | { | |
1250 | sc->rf_kill.rfkill = rfkill_allocate(wiphy_dev(sc->hw->wiphy), | |
1251 | RFKILL_TYPE_WLAN); | |
1252 | if (!sc->rf_kill.rfkill) { | |
1253 | DPRINTF(sc, ATH_DBG_FATAL, "Failed to allocate rfkill\n"); | |
1254 | return -ENOMEM; | |
1255 | } | |
1256 | ||
1257 | snprintf(sc->rf_kill.rfkill_name, sizeof(sc->rf_kill.rfkill_name), | |
0818cb8a | 1258 | "ath9k-%s::rfkill", wiphy_name(sc->hw->wiphy)); |
500c064d VT |
1259 | sc->rf_kill.rfkill->name = sc->rf_kill.rfkill_name; |
1260 | sc->rf_kill.rfkill->data = sc; | |
1261 | sc->rf_kill.rfkill->toggle_radio = ath_sw_toggle_radio; | |
1262 | sc->rf_kill.rfkill->state = RFKILL_STATE_UNBLOCKED; | |
1263 | sc->rf_kill.rfkill->user_claim_unsupported = 1; | |
1264 | ||
1265 | return 0; | |
1266 | } | |
1267 | ||
1268 | /* Deinitialize rfkill */ | |
1269 | static void ath_deinit_rfkill(struct ath_softc *sc) | |
1270 | { | |
2660b81a | 1271 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
500c064d VT |
1272 | cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll); |
1273 | ||
1274 | if (sc->sc_flags & SC_OP_RFKILL_REGISTERED) { | |
1275 | rfkill_unregister(sc->rf_kill.rfkill); | |
1276 | sc->sc_flags &= ~SC_OP_RFKILL_REGISTERED; | |
1277 | sc->rf_kill.rfkill = NULL; | |
1278 | } | |
1279 | } | |
9c84b797 S |
1280 | |
1281 | static int ath_start_rfkill_poll(struct ath_softc *sc) | |
1282 | { | |
2660b81a | 1283 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
9c84b797 S |
1284 | queue_delayed_work(sc->hw->workqueue, |
1285 | &sc->rf_kill.rfkill_poll, 0); | |
1286 | ||
1287 | if (!(sc->sc_flags & SC_OP_RFKILL_REGISTERED)) { | |
1288 | if (rfkill_register(sc->rf_kill.rfkill)) { | |
1289 | DPRINTF(sc, ATH_DBG_FATAL, | |
1290 | "Unable to register rfkill\n"); | |
1291 | rfkill_free(sc->rf_kill.rfkill); | |
1292 | ||
1293 | /* Deinitialize the device */ | |
39c3c2f2 | 1294 | ath_cleanup(sc); |
9c84b797 S |
1295 | return -EIO; |
1296 | } else { | |
1297 | sc->sc_flags |= SC_OP_RFKILL_REGISTERED; | |
1298 | } | |
1299 | } | |
1300 | ||
1301 | return 0; | |
1302 | } | |
500c064d VT |
1303 | #endif /* CONFIG_RFKILL */ |
1304 | ||
6baff7f9 | 1305 | void ath_cleanup(struct ath_softc *sc) |
39c3c2f2 GJ |
1306 | { |
1307 | ath_detach(sc); | |
1308 | free_irq(sc->irq, sc); | |
1309 | ath_bus_cleanup(sc); | |
c52f33d0 | 1310 | kfree(sc->sec_wiphy); |
39c3c2f2 GJ |
1311 | ieee80211_free_hw(sc->hw); |
1312 | } | |
1313 | ||
6baff7f9 | 1314 | void ath_detach(struct ath_softc *sc) |
f078f209 | 1315 | { |
8feceb67 | 1316 | struct ieee80211_hw *hw = sc->hw; |
9c84b797 | 1317 | int i = 0; |
f078f209 | 1318 | |
3cbb5dd7 VN |
1319 | ath9k_ps_wakeup(sc); |
1320 | ||
04bd4638 | 1321 | DPRINTF(sc, ATH_DBG_CONFIG, "Detach ATH hw\n"); |
f078f209 | 1322 | |
e97275cb | 1323 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
500c064d VT |
1324 | ath_deinit_rfkill(sc); |
1325 | #endif | |
3fcdfb4b | 1326 | ath_deinit_leds(sc); |
0e2dedf9 | 1327 | cancel_work_sync(&sc->chan_work); |
3fcdfb4b | 1328 | |
c52f33d0 JM |
1329 | for (i = 0; i < sc->num_sec_wiphy; i++) { |
1330 | struct ath_wiphy *aphy = sc->sec_wiphy[i]; | |
1331 | if (aphy == NULL) | |
1332 | continue; | |
1333 | sc->sec_wiphy[i] = NULL; | |
1334 | ieee80211_unregister_hw(aphy->hw); | |
1335 | ieee80211_free_hw(aphy->hw); | |
1336 | } | |
3fcdfb4b | 1337 | ieee80211_unregister_hw(hw); |
8feceb67 VT |
1338 | ath_rx_cleanup(sc); |
1339 | ath_tx_cleanup(sc); | |
f078f209 | 1340 | |
9c84b797 S |
1341 | tasklet_kill(&sc->intr_tq); |
1342 | tasklet_kill(&sc->bcon_tasklet); | |
f078f209 | 1343 | |
9c84b797 S |
1344 | if (!(sc->sc_flags & SC_OP_INVALID)) |
1345 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); | |
8feceb67 | 1346 | |
9c84b797 S |
1347 | /* cleanup tx queues */ |
1348 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1349 | if (ATH_TXQ_SETUP(sc, i)) | |
b77f483f | 1350 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
9c84b797 S |
1351 | |
1352 | ath9k_hw_detach(sc->sc_ah); | |
826d2680 | 1353 | ath9k_exit_debug(sc); |
3cbb5dd7 | 1354 | ath9k_ps_restore(sc); |
f078f209 LR |
1355 | } |
1356 | ||
ff37e337 S |
1357 | static int ath_init(u16 devid, struct ath_softc *sc) |
1358 | { | |
cbe61d8a | 1359 | struct ath_hw *ah = NULL; |
ff37e337 S |
1360 | int status; |
1361 | int error = 0, i; | |
1362 | int csz = 0; | |
1363 | ||
1364 | /* XXX: hardware will not be ready until ath_open() being called */ | |
1365 | sc->sc_flags |= SC_OP_INVALID; | |
88b126af | 1366 | |
826d2680 S |
1367 | if (ath9k_init_debug(sc) < 0) |
1368 | printk(KERN_ERR "Unable to create debugfs files\n"); | |
ff37e337 | 1369 | |
c52f33d0 | 1370 | spin_lock_init(&sc->wiphy_lock); |
ff37e337 | 1371 | spin_lock_init(&sc->sc_resetlock); |
aa33de09 | 1372 | mutex_init(&sc->mutex); |
ff37e337 | 1373 | tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc); |
9fc9ab0a | 1374 | tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, |
ff37e337 S |
1375 | (unsigned long)sc); |
1376 | ||
1377 | /* | |
1378 | * Cache line size is used to size and align various | |
1379 | * structures used to communicate with the hardware. | |
1380 | */ | |
88d15707 | 1381 | ath_read_cachesize(sc, &csz); |
ff37e337 | 1382 | /* XXX assert csz is non-zero */ |
17d7904d | 1383 | sc->cachelsz = csz << 2; /* convert to bytes */ |
ff37e337 | 1384 | |
cbe61d8a | 1385 | ah = ath9k_hw_attach(devid, sc, &status); |
ff37e337 S |
1386 | if (ah == NULL) { |
1387 | DPRINTF(sc, ATH_DBG_FATAL, | |
295834fe | 1388 | "Unable to attach hardware; HAL status %d\n", status); |
ff37e337 S |
1389 | error = -ENXIO; |
1390 | goto bad; | |
1391 | } | |
1392 | sc->sc_ah = ah; | |
1393 | ||
1394 | /* Get the hardware key cache size. */ | |
2660b81a | 1395 | sc->keymax = ah->caps.keycache_size; |
17d7904d | 1396 | if (sc->keymax > ATH_KEYMAX) { |
ff37e337 | 1397 | DPRINTF(sc, ATH_DBG_KEYCACHE, |
04bd4638 | 1398 | "Warning, using only %u entries in %u key cache\n", |
17d7904d S |
1399 | ATH_KEYMAX, sc->keymax); |
1400 | sc->keymax = ATH_KEYMAX; | |
ff37e337 S |
1401 | } |
1402 | ||
1403 | /* | |
1404 | * Reset the key cache since some parts do not | |
1405 | * reset the contents on initial power up. | |
1406 | */ | |
17d7904d | 1407 | for (i = 0; i < sc->keymax; i++) |
ff37e337 | 1408 | ath9k_hw_keyreset(ah, (u16) i); |
ff37e337 | 1409 | |
5f8e077c | 1410 | if (ath9k_regd_init(sc->sc_ah)) |
ff37e337 S |
1411 | goto bad; |
1412 | ||
1413 | /* default to MONITOR mode */ | |
2660b81a | 1414 | sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; |
d97809db | 1415 | |
ff37e337 S |
1416 | /* Setup rate tables */ |
1417 | ||
1418 | ath_rate_attach(sc); | |
1419 | ath_setup_rates(sc, IEEE80211_BAND_2GHZ); | |
1420 | ath_setup_rates(sc, IEEE80211_BAND_5GHZ); | |
1421 | ||
1422 | /* | |
1423 | * Allocate hardware transmit queues: one queue for | |
1424 | * beacon frames and one data queue for each QoS | |
1425 | * priority. Note that the hal handles reseting | |
1426 | * these queues at the needed time. | |
1427 | */ | |
b77f483f S |
1428 | sc->beacon.beaconq = ath_beaconq_setup(ah); |
1429 | if (sc->beacon.beaconq == -1) { | |
ff37e337 | 1430 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 1431 | "Unable to setup a beacon xmit queue\n"); |
ff37e337 S |
1432 | error = -EIO; |
1433 | goto bad2; | |
1434 | } | |
b77f483f S |
1435 | sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0); |
1436 | if (sc->beacon.cabq == NULL) { | |
ff37e337 | 1437 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 1438 | "Unable to setup CAB xmit queue\n"); |
ff37e337 S |
1439 | error = -EIO; |
1440 | goto bad2; | |
1441 | } | |
1442 | ||
17d7904d | 1443 | sc->config.cabqReadytime = ATH_CABQ_READY_TIME; |
ff37e337 S |
1444 | ath_cabq_update(sc); |
1445 | ||
b77f483f S |
1446 | for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++) |
1447 | sc->tx.hwq_map[i] = -1; | |
ff37e337 S |
1448 | |
1449 | /* Setup data queues */ | |
1450 | /* NB: ensure BK queue is the lowest priority h/w queue */ | |
1451 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) { | |
1452 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1453 | "Unable to setup xmit queue for BK traffic\n"); |
ff37e337 S |
1454 | error = -EIO; |
1455 | goto bad2; | |
1456 | } | |
1457 | ||
1458 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BE)) { | |
1459 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1460 | "Unable to setup xmit queue for BE traffic\n"); |
ff37e337 S |
1461 | error = -EIO; |
1462 | goto bad2; | |
1463 | } | |
1464 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VI)) { | |
1465 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1466 | "Unable to setup xmit queue for VI traffic\n"); |
ff37e337 S |
1467 | error = -EIO; |
1468 | goto bad2; | |
1469 | } | |
1470 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VO)) { | |
1471 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 1472 | "Unable to setup xmit queue for VO traffic\n"); |
ff37e337 S |
1473 | error = -EIO; |
1474 | goto bad2; | |
1475 | } | |
1476 | ||
1477 | /* Initializes the noise floor to a reasonable default value. | |
1478 | * Later on this will be updated during ANI processing. */ | |
1479 | ||
17d7904d S |
1480 | sc->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR; |
1481 | setup_timer(&sc->ani.timer, ath_ani_calibrate, (unsigned long)sc); | |
ff37e337 S |
1482 | |
1483 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1484 | ATH9K_CIPHER_TKIP, NULL)) { | |
1485 | /* | |
1486 | * Whether we should enable h/w TKIP MIC. | |
1487 | * XXX: if we don't support WME TKIP MIC, then we wouldn't | |
1488 | * report WMM capable, so it's always safe to turn on | |
1489 | * TKIP MIC in this case. | |
1490 | */ | |
1491 | ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC, | |
1492 | 0, 1, NULL); | |
1493 | } | |
1494 | ||
1495 | /* | |
1496 | * Check whether the separate key cache entries | |
1497 | * are required to handle both tx+rx MIC keys. | |
1498 | * With split mic keys the number of stations is limited | |
1499 | * to 27 otherwise 59. | |
1500 | */ | |
1501 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1502 | ATH9K_CIPHER_TKIP, NULL) | |
1503 | && ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, | |
1504 | ATH9K_CIPHER_MIC, NULL) | |
1505 | && ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT, | |
1506 | 0, NULL)) | |
17d7904d | 1507 | sc->splitmic = 1; |
ff37e337 S |
1508 | |
1509 | /* turn on mcast key search if possible */ | |
1510 | if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL)) | |
1511 | (void)ath9k_hw_setcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 1, | |
1512 | 1, NULL); | |
1513 | ||
17d7904d | 1514 | sc->config.txpowlimit = ATH_TXPOWER_MAX; |
ff37e337 S |
1515 | |
1516 | /* 11n Capabilities */ | |
2660b81a | 1517 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
ff37e337 S |
1518 | sc->sc_flags |= SC_OP_TXAGGR; |
1519 | sc->sc_flags |= SC_OP_RXAGGR; | |
1520 | } | |
1521 | ||
2660b81a S |
1522 | sc->tx_chainmask = ah->caps.tx_chainmask; |
1523 | sc->rx_chainmask = ah->caps.rx_chainmask; | |
ff37e337 S |
1524 | |
1525 | ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL); | |
b77f483f | 1526 | sc->rx.defant = ath9k_hw_getdefantenna(ah); |
ff37e337 | 1527 | |
8ca21f01 | 1528 | if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) |
ba52da58 | 1529 | memcpy(sc->bssidmask, ath_bcast_mac, ETH_ALEN); |
ff37e337 | 1530 | |
b77f483f | 1531 | sc->beacon.slottime = ATH9K_SLOT_TIME_9; /* default to short slot time */ |
ff37e337 S |
1532 | |
1533 | /* initialize beacon slots */ | |
c52f33d0 | 1534 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
2c3db3d5 | 1535 | sc->beacon.bslot[i] = NULL; |
c52f33d0 JM |
1536 | sc->beacon.bslot_aphy[i] = NULL; |
1537 | } | |
ff37e337 S |
1538 | |
1539 | /* save MISC configurations */ | |
17d7904d | 1540 | sc->config.swBeaconProcess = 1; |
ff37e337 | 1541 | |
ff37e337 S |
1542 | /* setup channels and rates */ |
1543 | ||
5f8e077c | 1544 | sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable; |
ff37e337 S |
1545 | sc->sbands[IEEE80211_BAND_2GHZ].bitrates = |
1546 | sc->rates[IEEE80211_BAND_2GHZ]; | |
1547 | sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ; | |
5f8e077c LR |
1548 | sc->sbands[IEEE80211_BAND_2GHZ].n_channels = |
1549 | ARRAY_SIZE(ath9k_2ghz_chantable); | |
ff37e337 | 1550 | |
2660b81a | 1551 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) { |
5f8e077c | 1552 | sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable; |
ff37e337 S |
1553 | sc->sbands[IEEE80211_BAND_5GHZ].bitrates = |
1554 | sc->rates[IEEE80211_BAND_5GHZ]; | |
1555 | sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; | |
5f8e077c LR |
1556 | sc->sbands[IEEE80211_BAND_5GHZ].n_channels = |
1557 | ARRAY_SIZE(ath9k_5ghz_chantable); | |
ff37e337 S |
1558 | } |
1559 | ||
2660b81a | 1560 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX) |
c97c92d9 VT |
1561 | ath9k_hw_btcoex_enable(sc->sc_ah); |
1562 | ||
ff37e337 S |
1563 | return 0; |
1564 | bad2: | |
1565 | /* cleanup tx queues */ | |
1566 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1567 | if (ATH_TXQ_SETUP(sc, i)) | |
b77f483f | 1568 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
ff37e337 S |
1569 | bad: |
1570 | if (ah) | |
1571 | ath9k_hw_detach(ah); | |
40b130a9 | 1572 | ath9k_exit_debug(sc); |
ff37e337 S |
1573 | |
1574 | return error; | |
1575 | } | |
1576 | ||
c52f33d0 | 1577 | void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) |
f078f209 | 1578 | { |
9c84b797 S |
1579 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
1580 | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | | |
1581 | IEEE80211_HW_SIGNAL_DBM | | |
3cbb5dd7 VN |
1582 | IEEE80211_HW_AMPDU_AGGREGATION | |
1583 | IEEE80211_HW_SUPPORTS_PS | | |
1584 | IEEE80211_HW_PS_NULLFUNC_STACK; | |
f078f209 | 1585 | |
b3bd89ce | 1586 | if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt) |
0ced0e17 JM |
1587 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
1588 | ||
9c84b797 S |
1589 | hw->wiphy->interface_modes = |
1590 | BIT(NL80211_IFTYPE_AP) | | |
1591 | BIT(NL80211_IFTYPE_STATION) | | |
1592 | BIT(NL80211_IFTYPE_ADHOC); | |
f078f209 | 1593 | |
5f8e077c LR |
1594 | hw->wiphy->reg_notifier = ath9k_reg_notifier; |
1595 | hw->wiphy->strict_regulatory = true; | |
1596 | ||
8feceb67 | 1597 | hw->queues = 4; |
e63835b0 | 1598 | hw->max_rates = 4; |
171387ef | 1599 | hw->channel_change_time = 5000; |
465ca84d | 1600 | hw->max_listen_interval = 10; |
e63835b0 | 1601 | hw->max_rate_tries = ATH_11N_TXMAXTRY; |
528f0c6b | 1602 | hw->sta_data_size = sizeof(struct ath_node); |
17d7904d | 1603 | hw->vif_data_size = sizeof(struct ath_vif); |
f078f209 | 1604 | |
8feceb67 | 1605 | hw->rate_control_algorithm = "ath9k_rate_control"; |
f078f209 | 1606 | |
c52f33d0 JM |
1607 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
1608 | &sc->sbands[IEEE80211_BAND_2GHZ]; | |
1609 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) | |
1610 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
1611 | &sc->sbands[IEEE80211_BAND_5GHZ]; | |
1612 | } | |
1613 | ||
1614 | int ath_attach(u16 devid, struct ath_softc *sc) | |
1615 | { | |
1616 | struct ieee80211_hw *hw = sc->hw; | |
1617 | const struct ieee80211_regdomain *regd; | |
1618 | int error = 0, i; | |
1619 | ||
1620 | DPRINTF(sc, ATH_DBG_CONFIG, "Attach ATH hw\n"); | |
1621 | ||
1622 | error = ath_init(devid, sc); | |
1623 | if (error != 0) | |
1624 | return error; | |
1625 | ||
1626 | /* get mac address from hardware and set in mac80211 */ | |
1627 | ||
1628 | SET_IEEE80211_PERM_ADDR(hw, sc->sc_ah->macaddr); | |
1629 | ||
1630 | ath_set_hw_capab(sc, hw); | |
1631 | ||
2660b81a | 1632 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
eb2599ca | 1633 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap); |
2660b81a | 1634 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) |
eb2599ca | 1635 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); |
9c84b797 S |
1636 | } |
1637 | ||
db93e7b5 SB |
1638 | /* initialize tx/rx engine */ |
1639 | error = ath_tx_init(sc, ATH_TXBUF); | |
1640 | if (error != 0) | |
40b130a9 | 1641 | goto error_attach; |
8feceb67 | 1642 | |
db93e7b5 SB |
1643 | error = ath_rx_init(sc, ATH_RXBUF); |
1644 | if (error != 0) | |
40b130a9 | 1645 | goto error_attach; |
8feceb67 | 1646 | |
e97275cb | 1647 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
500c064d | 1648 | /* Initialze h/w Rfkill */ |
2660b81a | 1649 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
500c064d VT |
1650 | INIT_DELAYED_WORK(&sc->rf_kill.rfkill_poll, ath_rfkill_poll); |
1651 | ||
1652 | /* Initialize s/w rfkill */ | |
40b130a9 VT |
1653 | error = ath_init_sw_rfkill(sc); |
1654 | if (error) | |
1655 | goto error_attach; | |
500c064d VT |
1656 | #endif |
1657 | ||
5f8e077c | 1658 | if (ath9k_is_world_regd(sc->sc_ah)) { |
191a99b7 | 1659 | /* Anything applied here (prior to wiphy registration) gets |
5f8e077c | 1660 | * saved on the wiphy orig_* parameters */ |
191a99b7 | 1661 | regd = ath9k_world_regdomain(sc->sc_ah); |
5f8e077c LR |
1662 | hw->wiphy->custom_regulatory = true; |
1663 | hw->wiphy->strict_regulatory = false; | |
5f8e077c LR |
1664 | } else { |
1665 | /* This gets applied in the case of the absense of CRDA, | |
191a99b7 | 1666 | * it's our own custom world regulatory domain, similar to |
5f8e077c | 1667 | * cfg80211's but we enable passive scanning */ |
191a99b7 | 1668 | regd = ath9k_default_world_regdomain(); |
5f8e077c | 1669 | } |
191a99b7 BC |
1670 | wiphy_apply_custom_regulatory(hw->wiphy, regd); |
1671 | ath9k_reg_apply_radar_flags(hw->wiphy); | |
1672 | ath9k_reg_apply_world_flags(hw->wiphy, REGDOM_SET_BY_INIT); | |
5f8e077c | 1673 | |
0e2dedf9 JM |
1674 | INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work); |
1675 | ||
db93e7b5 | 1676 | error = ieee80211_register_hw(hw); |
8feceb67 | 1677 | |
fe33eb39 LR |
1678 | if (!ath9k_is_world_regd(sc->sc_ah)) { |
1679 | error = regulatory_hint(hw->wiphy, | |
1680 | sc->sc_ah->regulatory.alpha2); | |
1681 | if (error) | |
1682 | goto error_attach; | |
1683 | } | |
5f8e077c | 1684 | |
db93e7b5 SB |
1685 | /* Initialize LED control */ |
1686 | ath_init_leds(sc); | |
8feceb67 | 1687 | |
5f8e077c | 1688 | |
8feceb67 | 1689 | return 0; |
40b130a9 VT |
1690 | |
1691 | error_attach: | |
1692 | /* cleanup tx queues */ | |
1693 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) | |
1694 | if (ATH_TXQ_SETUP(sc, i)) | |
1695 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); | |
1696 | ||
1697 | ath9k_hw_detach(sc->sc_ah); | |
1698 | ath9k_exit_debug(sc); | |
1699 | ||
8feceb67 | 1700 | return error; |
f078f209 LR |
1701 | } |
1702 | ||
ff37e337 S |
1703 | int ath_reset(struct ath_softc *sc, bool retry_tx) |
1704 | { | |
cbe61d8a | 1705 | struct ath_hw *ah = sc->sc_ah; |
030bb495 | 1706 | struct ieee80211_hw *hw = sc->hw; |
ae8d2858 | 1707 | int r; |
ff37e337 S |
1708 | |
1709 | ath9k_hw_set_interrupts(ah, 0); | |
043a0405 | 1710 | ath_drain_all_txq(sc, retry_tx); |
ff37e337 S |
1711 | ath_stoprecv(sc); |
1712 | ath_flushrecv(sc); | |
1713 | ||
1714 | spin_lock_bh(&sc->sc_resetlock); | |
2660b81a | 1715 | r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); |
ae8d2858 | 1716 | if (r) |
ff37e337 | 1717 | DPRINTF(sc, ATH_DBG_FATAL, |
ae8d2858 | 1718 | "Unable to reset hardware; reset status %u\n", r); |
ff37e337 S |
1719 | spin_unlock_bh(&sc->sc_resetlock); |
1720 | ||
1721 | if (ath_startrecv(sc) != 0) | |
04bd4638 | 1722 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); |
ff37e337 S |
1723 | |
1724 | /* | |
1725 | * We may be doing a reset in response to a request | |
1726 | * that changes the channel so update any state that | |
1727 | * might change as a result. | |
1728 | */ | |
ce111bad | 1729 | ath_cache_conf_rate(sc, &hw->conf); |
ff37e337 S |
1730 | |
1731 | ath_update_txpow(sc); | |
1732 | ||
1733 | if (sc->sc_flags & SC_OP_BEACONS) | |
2c3db3d5 | 1734 | ath_beacon_config(sc, NULL); /* restart beacons */ |
ff37e337 | 1735 | |
17d7904d | 1736 | ath9k_hw_set_interrupts(ah, sc->imask); |
ff37e337 S |
1737 | |
1738 | if (retry_tx) { | |
1739 | int i; | |
1740 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { | |
1741 | if (ATH_TXQ_SETUP(sc, i)) { | |
b77f483f S |
1742 | spin_lock_bh(&sc->tx.txq[i].axq_lock); |
1743 | ath_txq_schedule(sc, &sc->tx.txq[i]); | |
1744 | spin_unlock_bh(&sc->tx.txq[i].axq_lock); | |
ff37e337 S |
1745 | } |
1746 | } | |
1747 | } | |
1748 | ||
ae8d2858 | 1749 | return r; |
ff37e337 S |
1750 | } |
1751 | ||
1752 | /* | |
1753 | * This function will allocate both the DMA descriptor structure, and the | |
1754 | * buffers it contains. These are used to contain the descriptors used | |
1755 | * by the system. | |
1756 | */ | |
1757 | int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, | |
1758 | struct list_head *head, const char *name, | |
1759 | int nbuf, int ndesc) | |
1760 | { | |
1761 | #define DS2PHYS(_dd, _ds) \ | |
1762 | ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) | |
1763 | #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) | |
1764 | #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) | |
1765 | ||
1766 | struct ath_desc *ds; | |
1767 | struct ath_buf *bf; | |
1768 | int i, bsize, error; | |
1769 | ||
04bd4638 S |
1770 | DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n", |
1771 | name, nbuf, ndesc); | |
ff37e337 S |
1772 | |
1773 | /* ath_desc must be a multiple of DWORDs */ | |
1774 | if ((sizeof(struct ath_desc) % 4) != 0) { | |
04bd4638 | 1775 | DPRINTF(sc, ATH_DBG_FATAL, "ath_desc not DWORD aligned\n"); |
ff37e337 S |
1776 | ASSERT((sizeof(struct ath_desc) % 4) == 0); |
1777 | error = -ENOMEM; | |
1778 | goto fail; | |
1779 | } | |
1780 | ||
1781 | dd->dd_name = name; | |
1782 | dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc; | |
1783 | ||
1784 | /* | |
1785 | * Need additional DMA memory because we can't use | |
1786 | * descriptors that cross the 4K page boundary. Assume | |
1787 | * one skipped descriptor per 4K page. | |
1788 | */ | |
2660b81a | 1789 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
ff37e337 S |
1790 | u32 ndesc_skipped = |
1791 | ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len); | |
1792 | u32 dma_len; | |
1793 | ||
1794 | while (ndesc_skipped) { | |
1795 | dma_len = ndesc_skipped * sizeof(struct ath_desc); | |
1796 | dd->dd_desc_len += dma_len; | |
1797 | ||
1798 | ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len); | |
1799 | }; | |
1800 | } | |
1801 | ||
1802 | /* allocate descriptors */ | |
7da3c55c GJ |
1803 | dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len, |
1804 | &dd->dd_desc_paddr, GFP_ATOMIC); | |
ff37e337 S |
1805 | if (dd->dd_desc == NULL) { |
1806 | error = -ENOMEM; | |
1807 | goto fail; | |
1808 | } | |
1809 | ds = dd->dd_desc; | |
04bd4638 S |
1810 | DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n", |
1811 | dd->dd_name, ds, (u32) dd->dd_desc_len, | |
ff37e337 S |
1812 | ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len); |
1813 | ||
1814 | /* allocate buffers */ | |
1815 | bsize = sizeof(struct ath_buf) * nbuf; | |
1816 | bf = kmalloc(bsize, GFP_KERNEL); | |
1817 | if (bf == NULL) { | |
1818 | error = -ENOMEM; | |
1819 | goto fail2; | |
1820 | } | |
1821 | memset(bf, 0, bsize); | |
1822 | dd->dd_bufptr = bf; | |
1823 | ||
1824 | INIT_LIST_HEAD(head); | |
1825 | for (i = 0; i < nbuf; i++, bf++, ds += ndesc) { | |
1826 | bf->bf_desc = ds; | |
1827 | bf->bf_daddr = DS2PHYS(dd, ds); | |
1828 | ||
2660b81a | 1829 | if (!(sc->sc_ah->caps.hw_caps & |
ff37e337 S |
1830 | ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
1831 | /* | |
1832 | * Skip descriptor addresses which can cause 4KB | |
1833 | * boundary crossing (addr + length) with a 32 dword | |
1834 | * descriptor fetch. | |
1835 | */ | |
1836 | while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) { | |
1837 | ASSERT((caddr_t) bf->bf_desc < | |
1838 | ((caddr_t) dd->dd_desc + | |
1839 | dd->dd_desc_len)); | |
1840 | ||
1841 | ds += ndesc; | |
1842 | bf->bf_desc = ds; | |
1843 | bf->bf_daddr = DS2PHYS(dd, ds); | |
1844 | } | |
1845 | } | |
1846 | list_add_tail(&bf->list, head); | |
1847 | } | |
1848 | return 0; | |
1849 | fail2: | |
7da3c55c GJ |
1850 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
1851 | dd->dd_desc_paddr); | |
ff37e337 S |
1852 | fail: |
1853 | memset(dd, 0, sizeof(*dd)); | |
1854 | return error; | |
1855 | #undef ATH_DESC_4KB_BOUND_CHECK | |
1856 | #undef ATH_DESC_4KB_BOUND_NUM_SKIPPED | |
1857 | #undef DS2PHYS | |
1858 | } | |
1859 | ||
1860 | void ath_descdma_cleanup(struct ath_softc *sc, | |
1861 | struct ath_descdma *dd, | |
1862 | struct list_head *head) | |
1863 | { | |
7da3c55c GJ |
1864 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
1865 | dd->dd_desc_paddr); | |
ff37e337 S |
1866 | |
1867 | INIT_LIST_HEAD(head); | |
1868 | kfree(dd->dd_bufptr); | |
1869 | memset(dd, 0, sizeof(*dd)); | |
1870 | } | |
1871 | ||
1872 | int ath_get_hal_qnum(u16 queue, struct ath_softc *sc) | |
1873 | { | |
1874 | int qnum; | |
1875 | ||
1876 | switch (queue) { | |
1877 | case 0: | |
b77f483f | 1878 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VO]; |
ff37e337 S |
1879 | break; |
1880 | case 1: | |
b77f483f | 1881 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VI]; |
ff37e337 S |
1882 | break; |
1883 | case 2: | |
b77f483f | 1884 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
ff37e337 S |
1885 | break; |
1886 | case 3: | |
b77f483f | 1887 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BK]; |
ff37e337 S |
1888 | break; |
1889 | default: | |
b77f483f | 1890 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
ff37e337 S |
1891 | break; |
1892 | } | |
1893 | ||
1894 | return qnum; | |
1895 | } | |
1896 | ||
1897 | int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc) | |
1898 | { | |
1899 | int qnum; | |
1900 | ||
1901 | switch (queue) { | |
1902 | case ATH9K_WME_AC_VO: | |
1903 | qnum = 0; | |
1904 | break; | |
1905 | case ATH9K_WME_AC_VI: | |
1906 | qnum = 1; | |
1907 | break; | |
1908 | case ATH9K_WME_AC_BE: | |
1909 | qnum = 2; | |
1910 | break; | |
1911 | case ATH9K_WME_AC_BK: | |
1912 | qnum = 3; | |
1913 | break; | |
1914 | default: | |
1915 | qnum = -1; | |
1916 | break; | |
1917 | } | |
1918 | ||
1919 | return qnum; | |
1920 | } | |
1921 | ||
5f8e077c LR |
1922 | /* XXX: Remove me once we don't depend on ath9k_channel for all |
1923 | * this redundant data */ | |
0e2dedf9 JM |
1924 | void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, |
1925 | struct ath9k_channel *ichan) | |
5f8e077c | 1926 | { |
5f8e077c LR |
1927 | struct ieee80211_channel *chan = hw->conf.channel; |
1928 | struct ieee80211_conf *conf = &hw->conf; | |
1929 | ||
1930 | ichan->channel = chan->center_freq; | |
1931 | ichan->chan = chan; | |
1932 | ||
1933 | if (chan->band == IEEE80211_BAND_2GHZ) { | |
1934 | ichan->chanmode = CHANNEL_G; | |
1935 | ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM; | |
1936 | } else { | |
1937 | ichan->chanmode = CHANNEL_A; | |
1938 | ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM; | |
1939 | } | |
1940 | ||
1941 | sc->tx_chan_width = ATH9K_HT_MACMODE_20; | |
1942 | ||
1943 | if (conf_is_ht(conf)) { | |
1944 | if (conf_is_ht40(conf)) | |
1945 | sc->tx_chan_width = ATH9K_HT_MACMODE_2040; | |
1946 | ||
1947 | ichan->chanmode = ath_get_extchanmode(sc, chan, | |
1948 | conf->channel_type); | |
1949 | } | |
1950 | } | |
1951 | ||
ff37e337 S |
1952 | /**********************/ |
1953 | /* mac80211 callbacks */ | |
1954 | /**********************/ | |
1955 | ||
8feceb67 | 1956 | static int ath9k_start(struct ieee80211_hw *hw) |
f078f209 | 1957 | { |
bce048d7 JM |
1958 | struct ath_wiphy *aphy = hw->priv; |
1959 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 1960 | struct ieee80211_channel *curchan = hw->conf.channel; |
ff37e337 | 1961 | struct ath9k_channel *init_channel; |
ae8d2858 | 1962 | int r, pos; |
f078f209 | 1963 | |
04bd4638 S |
1964 | DPRINTF(sc, ATH_DBG_CONFIG, "Starting driver with " |
1965 | "initial channel: %d MHz\n", curchan->center_freq); | |
f078f209 | 1966 | |
141b38b6 S |
1967 | mutex_lock(&sc->mutex); |
1968 | ||
9580a222 JM |
1969 | if (ath9k_wiphy_started(sc)) { |
1970 | if (sc->chan_idx == curchan->hw_value) { | |
1971 | /* | |
1972 | * Already on the operational channel, the new wiphy | |
1973 | * can be marked active. | |
1974 | */ | |
1975 | aphy->state = ATH_WIPHY_ACTIVE; | |
1976 | ieee80211_wake_queues(hw); | |
1977 | } else { | |
1978 | /* | |
1979 | * Another wiphy is on another channel, start the new | |
1980 | * wiphy in paused state. | |
1981 | */ | |
1982 | aphy->state = ATH_WIPHY_PAUSED; | |
1983 | ieee80211_stop_queues(hw); | |
1984 | } | |
1985 | mutex_unlock(&sc->mutex); | |
1986 | return 0; | |
1987 | } | |
1988 | aphy->state = ATH_WIPHY_ACTIVE; | |
1989 | ||
8feceb67 | 1990 | /* setup initial channel */ |
f078f209 | 1991 | |
5f8e077c | 1992 | pos = curchan->hw_value; |
f078f209 | 1993 | |
0e2dedf9 | 1994 | sc->chan_idx = pos; |
2660b81a | 1995 | init_channel = &sc->sc_ah->channels[pos]; |
0e2dedf9 | 1996 | ath9k_update_ichannel(sc, hw, init_channel); |
ff37e337 S |
1997 | |
1998 | /* Reset SERDES registers */ | |
1999 | ath9k_hw_configpcipowersave(sc->sc_ah, 0); | |
2000 | ||
2001 | /* | |
2002 | * The basic interface to setting the hardware in a good | |
2003 | * state is ``reset''. On return the hardware is known to | |
2004 | * be powered up and with interrupts disabled. This must | |
2005 | * be followed by initialization of the appropriate bits | |
2006 | * and then setup of the interrupt mask. | |
2007 | */ | |
2008 | spin_lock_bh(&sc->sc_resetlock); | |
ae8d2858 LR |
2009 | r = ath9k_hw_reset(sc->sc_ah, init_channel, false); |
2010 | if (r) { | |
ff37e337 | 2011 | DPRINTF(sc, ATH_DBG_FATAL, |
ae8d2858 LR |
2012 | "Unable to reset hardware; reset status %u " |
2013 | "(freq %u MHz)\n", r, | |
2014 | curchan->center_freq); | |
ff37e337 | 2015 | spin_unlock_bh(&sc->sc_resetlock); |
141b38b6 | 2016 | goto mutex_unlock; |
ff37e337 S |
2017 | } |
2018 | spin_unlock_bh(&sc->sc_resetlock); | |
2019 | ||
2020 | /* | |
2021 | * This is needed only to setup initial state | |
2022 | * but it's best done after a reset. | |
2023 | */ | |
2024 | ath_update_txpow(sc); | |
8feceb67 | 2025 | |
ff37e337 S |
2026 | /* |
2027 | * Setup the hardware after reset: | |
2028 | * The receive engine is set going. | |
2029 | * Frame transmit is handled entirely | |
2030 | * in the frame output path; there's nothing to do | |
2031 | * here except setup the interrupt mask. | |
2032 | */ | |
2033 | if (ath_startrecv(sc) != 0) { | |
8feceb67 | 2034 | DPRINTF(sc, ATH_DBG_FATAL, |
04bd4638 | 2035 | "Unable to start recv logic\n"); |
141b38b6 S |
2036 | r = -EIO; |
2037 | goto mutex_unlock; | |
f078f209 | 2038 | } |
8feceb67 | 2039 | |
ff37e337 | 2040 | /* Setup our intr mask. */ |
17d7904d | 2041 | sc->imask = ATH9K_INT_RX | ATH9K_INT_TX |
ff37e337 S |
2042 | | ATH9K_INT_RXEOL | ATH9K_INT_RXORN |
2043 | | ATH9K_INT_FATAL | ATH9K_INT_GLOBAL; | |
2044 | ||
2660b81a | 2045 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_GTT) |
17d7904d | 2046 | sc->imask |= ATH9K_INT_GTT; |
ff37e337 | 2047 | |
2660b81a | 2048 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) |
17d7904d | 2049 | sc->imask |= ATH9K_INT_CST; |
ff37e337 | 2050 | |
ce111bad | 2051 | ath_cache_conf_rate(sc, &hw->conf); |
ff37e337 S |
2052 | |
2053 | sc->sc_flags &= ~SC_OP_INVALID; | |
2054 | ||
2055 | /* Disable BMISS interrupt when we're not associated */ | |
17d7904d S |
2056 | sc->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); |
2057 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); | |
ff37e337 | 2058 | |
bce048d7 | 2059 | ieee80211_wake_queues(hw); |
ff37e337 | 2060 | |
e97275cb | 2061 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
ae8d2858 | 2062 | r = ath_start_rfkill_poll(sc); |
500c064d | 2063 | #endif |
141b38b6 S |
2064 | |
2065 | mutex_unlock: | |
2066 | mutex_unlock(&sc->mutex); | |
2067 | ||
ae8d2858 | 2068 | return r; |
f078f209 LR |
2069 | } |
2070 | ||
8feceb67 VT |
2071 | static int ath9k_tx(struct ieee80211_hw *hw, |
2072 | struct sk_buff *skb) | |
f078f209 | 2073 | { |
528f0c6b | 2074 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
bce048d7 JM |
2075 | struct ath_wiphy *aphy = hw->priv; |
2076 | struct ath_softc *sc = aphy->sc; | |
528f0c6b | 2077 | struct ath_tx_control txctl; |
8feceb67 | 2078 | int hdrlen, padsize; |
528f0c6b | 2079 | |
ee166a0e JM |
2080 | if (aphy->state != ATH_WIPHY_ACTIVE) { |
2081 | printk(KERN_DEBUG "ath9k: %s: TX in unexpected wiphy state " | |
2082 | "%d\n", wiphy_name(hw->wiphy), aphy->state); | |
2083 | goto exit; | |
2084 | } | |
2085 | ||
528f0c6b | 2086 | memset(&txctl, 0, sizeof(struct ath_tx_control)); |
f078f209 | 2087 | |
8feceb67 VT |
2088 | /* |
2089 | * As a temporary workaround, assign seq# here; this will likely need | |
2090 | * to be cleaned up to work better with Beacon transmission and virtual | |
2091 | * BSSes. | |
2092 | */ | |
2093 | if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { | |
2094 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
2095 | if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) | |
b77f483f | 2096 | sc->tx.seq_no += 0x10; |
8feceb67 | 2097 | hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
b77f483f | 2098 | hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no); |
8feceb67 | 2099 | } |
f078f209 | 2100 | |
8feceb67 VT |
2101 | /* Add the padding after the header if this is not already done */ |
2102 | hdrlen = ieee80211_get_hdrlen_from_skb(skb); | |
2103 | if (hdrlen & 3) { | |
2104 | padsize = hdrlen % 4; | |
2105 | if (skb_headroom(skb) < padsize) | |
2106 | return -1; | |
2107 | skb_push(skb, padsize); | |
2108 | memmove(skb->data, skb->data + padsize, hdrlen); | |
2109 | } | |
2110 | ||
528f0c6b S |
2111 | /* Check if a tx queue is available */ |
2112 | ||
2113 | txctl.txq = ath_test_get_txq(sc, skb); | |
2114 | if (!txctl.txq) | |
2115 | goto exit; | |
2116 | ||
04bd4638 | 2117 | DPRINTF(sc, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); |
8feceb67 | 2118 | |
c52f33d0 | 2119 | if (ath_tx_start(hw, skb, &txctl) != 0) { |
04bd4638 | 2120 | DPRINTF(sc, ATH_DBG_XMIT, "TX failed\n"); |
528f0c6b | 2121 | goto exit; |
8feceb67 VT |
2122 | } |
2123 | ||
528f0c6b S |
2124 | return 0; |
2125 | exit: | |
2126 | dev_kfree_skb_any(skb); | |
8feceb67 | 2127 | return 0; |
f078f209 LR |
2128 | } |
2129 | ||
8feceb67 | 2130 | static void ath9k_stop(struct ieee80211_hw *hw) |
f078f209 | 2131 | { |
bce048d7 JM |
2132 | struct ath_wiphy *aphy = hw->priv; |
2133 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2134 | |
9580a222 JM |
2135 | aphy->state = ATH_WIPHY_INACTIVE; |
2136 | ||
9c84b797 | 2137 | if (sc->sc_flags & SC_OP_INVALID) { |
04bd4638 | 2138 | DPRINTF(sc, ATH_DBG_ANY, "Device not present\n"); |
9c84b797 S |
2139 | return; |
2140 | } | |
8feceb67 | 2141 | |
141b38b6 | 2142 | mutex_lock(&sc->mutex); |
ff37e337 | 2143 | |
bce048d7 | 2144 | ieee80211_stop_queues(hw); |
ff37e337 | 2145 | |
9580a222 JM |
2146 | if (ath9k_wiphy_started(sc)) { |
2147 | mutex_unlock(&sc->mutex); | |
2148 | return; /* another wiphy still in use */ | |
2149 | } | |
2150 | ||
ff37e337 S |
2151 | /* make sure h/w will not generate any interrupt |
2152 | * before setting the invalid flag. */ | |
2153 | ath9k_hw_set_interrupts(sc->sc_ah, 0); | |
2154 | ||
2155 | if (!(sc->sc_flags & SC_OP_INVALID)) { | |
043a0405 | 2156 | ath_drain_all_txq(sc, false); |
ff37e337 S |
2157 | ath_stoprecv(sc); |
2158 | ath9k_hw_phy_disable(sc->sc_ah); | |
2159 | } else | |
b77f483f | 2160 | sc->rx.rxlink = NULL; |
ff37e337 S |
2161 | |
2162 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) | |
2660b81a | 2163 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
ff37e337 S |
2164 | cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll); |
2165 | #endif | |
2166 | /* disable HAL and put h/w to sleep */ | |
2167 | ath9k_hw_disable(sc->sc_ah); | |
2168 | ath9k_hw_configpcipowersave(sc->sc_ah, 1); | |
2169 | ||
2170 | sc->sc_flags |= SC_OP_INVALID; | |
500c064d | 2171 | |
141b38b6 S |
2172 | mutex_unlock(&sc->mutex); |
2173 | ||
04bd4638 | 2174 | DPRINTF(sc, ATH_DBG_CONFIG, "Driver halt\n"); |
f078f209 LR |
2175 | } |
2176 | ||
8feceb67 VT |
2177 | static int ath9k_add_interface(struct ieee80211_hw *hw, |
2178 | struct ieee80211_if_init_conf *conf) | |
f078f209 | 2179 | { |
bce048d7 JM |
2180 | struct ath_wiphy *aphy = hw->priv; |
2181 | struct ath_softc *sc = aphy->sc; | |
17d7904d | 2182 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
d97809db | 2183 | enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; |
2c3db3d5 | 2184 | int ret = 0; |
8feceb67 | 2185 | |
141b38b6 S |
2186 | mutex_lock(&sc->mutex); |
2187 | ||
8ca21f01 JM |
2188 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) && |
2189 | sc->nvifs > 0) { | |
2190 | ret = -ENOBUFS; | |
2191 | goto out; | |
2192 | } | |
2193 | ||
8feceb67 | 2194 | switch (conf->type) { |
05c914fe | 2195 | case NL80211_IFTYPE_STATION: |
d97809db | 2196 | ic_opmode = NL80211_IFTYPE_STATION; |
f078f209 | 2197 | break; |
05c914fe | 2198 | case NL80211_IFTYPE_ADHOC: |
2c3db3d5 JM |
2199 | if (sc->nbcnvifs >= ATH_BCBUF) { |
2200 | ret = -ENOBUFS; | |
2201 | goto out; | |
2202 | } | |
d97809db | 2203 | ic_opmode = NL80211_IFTYPE_ADHOC; |
f078f209 | 2204 | break; |
05c914fe | 2205 | case NL80211_IFTYPE_AP: |
2c3db3d5 JM |
2206 | if (sc->nbcnvifs >= ATH_BCBUF) { |
2207 | ret = -ENOBUFS; | |
2208 | goto out; | |
2209 | } | |
d97809db | 2210 | ic_opmode = NL80211_IFTYPE_AP; |
f078f209 LR |
2211 | break; |
2212 | default: | |
2213 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 2214 | "Interface type %d not yet supported\n", conf->type); |
2c3db3d5 JM |
2215 | ret = -EOPNOTSUPP; |
2216 | goto out; | |
f078f209 LR |
2217 | } |
2218 | ||
17d7904d | 2219 | DPRINTF(sc, ATH_DBG_CONFIG, "Attach a VIF of type: %d\n", ic_opmode); |
8feceb67 | 2220 | |
17d7904d | 2221 | /* Set the VIF opmode */ |
5640b08e S |
2222 | avp->av_opmode = ic_opmode; |
2223 | avp->av_bslot = -1; | |
2224 | ||
2c3db3d5 | 2225 | sc->nvifs++; |
8ca21f01 JM |
2226 | |
2227 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) | |
2228 | ath9k_set_bssid_mask(hw); | |
2229 | ||
2c3db3d5 JM |
2230 | if (sc->nvifs > 1) |
2231 | goto out; /* skip global settings for secondary vif */ | |
2232 | ||
b238e90e | 2233 | if (ic_opmode == NL80211_IFTYPE_AP) { |
5640b08e | 2234 | ath9k_hw_set_tsfadjust(sc->sc_ah, 1); |
b238e90e S |
2235 | sc->sc_flags |= SC_OP_TSF_RESET; |
2236 | } | |
5640b08e | 2237 | |
5640b08e | 2238 | /* Set the device opmode */ |
2660b81a | 2239 | sc->sc_ah->opmode = ic_opmode; |
5640b08e | 2240 | |
4e30ffa2 VN |
2241 | /* |
2242 | * Enable MIB interrupts when there are hardware phy counters. | |
2243 | * Note we only do this (at the moment) for station mode. | |
2244 | */ | |
4af9cf4f S |
2245 | if ((conf->type == NL80211_IFTYPE_STATION) || |
2246 | (conf->type == NL80211_IFTYPE_ADHOC)) { | |
2247 | if (ath9k_hw_phycounters(sc->sc_ah)) | |
2248 | sc->imask |= ATH9K_INT_MIB; | |
2249 | sc->imask |= ATH9K_INT_TSFOOR; | |
2250 | } | |
2251 | ||
4e30ffa2 VN |
2252 | /* |
2253 | * Some hardware processes the TIM IE and fires an | |
2254 | * interrupt when the TIM bit is set. For hardware | |
2255 | * that does, if not overridden by configuration, | |
2256 | * enable the TIM interrupt when operating as station. | |
2257 | */ | |
2660b81a | 2258 | if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_ENHANCEDPM) && |
4e30ffa2 | 2259 | (conf->type == NL80211_IFTYPE_STATION) && |
17d7904d S |
2260 | !sc->config.swBeaconProcess) |
2261 | sc->imask |= ATH9K_INT_TIM; | |
4e30ffa2 | 2262 | |
17d7904d | 2263 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
4e30ffa2 | 2264 | |
6f255425 LR |
2265 | if (conf->type == NL80211_IFTYPE_AP) { |
2266 | /* TODO: is this a suitable place to start ANI for AP mode? */ | |
2267 | /* Start ANI */ | |
17d7904d | 2268 | mod_timer(&sc->ani.timer, |
6f255425 LR |
2269 | jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); |
2270 | } | |
2271 | ||
2c3db3d5 | 2272 | out: |
141b38b6 | 2273 | mutex_unlock(&sc->mutex); |
2c3db3d5 | 2274 | return ret; |
f078f209 LR |
2275 | } |
2276 | ||
8feceb67 VT |
2277 | static void ath9k_remove_interface(struct ieee80211_hw *hw, |
2278 | struct ieee80211_if_init_conf *conf) | |
f078f209 | 2279 | { |
bce048d7 JM |
2280 | struct ath_wiphy *aphy = hw->priv; |
2281 | struct ath_softc *sc = aphy->sc; | |
17d7904d | 2282 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
2c3db3d5 | 2283 | int i; |
f078f209 | 2284 | |
04bd4638 | 2285 | DPRINTF(sc, ATH_DBG_CONFIG, "Detach Interface\n"); |
f078f209 | 2286 | |
141b38b6 S |
2287 | mutex_lock(&sc->mutex); |
2288 | ||
6f255425 | 2289 | /* Stop ANI */ |
17d7904d | 2290 | del_timer_sync(&sc->ani.timer); |
580f0b8a | 2291 | |
8feceb67 | 2292 | /* Reclaim beacon resources */ |
2660b81a S |
2293 | if (sc->sc_ah->opmode == NL80211_IFTYPE_AP || |
2294 | sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) { | |
b77f483f | 2295 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
8feceb67 | 2296 | ath_beacon_return(sc, avp); |
580f0b8a | 2297 | } |
f078f209 | 2298 | |
8feceb67 | 2299 | sc->sc_flags &= ~SC_OP_BEACONS; |
f078f209 | 2300 | |
2c3db3d5 JM |
2301 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
2302 | if (sc->beacon.bslot[i] == conf->vif) { | |
2303 | printk(KERN_DEBUG "%s: vif had allocated beacon " | |
2304 | "slot\n", __func__); | |
2305 | sc->beacon.bslot[i] = NULL; | |
c52f33d0 | 2306 | sc->beacon.bslot_aphy[i] = NULL; |
2c3db3d5 JM |
2307 | } |
2308 | } | |
2309 | ||
17d7904d | 2310 | sc->nvifs--; |
141b38b6 S |
2311 | |
2312 | mutex_unlock(&sc->mutex); | |
f078f209 LR |
2313 | } |
2314 | ||
e8975581 | 2315 | static int ath9k_config(struct ieee80211_hw *hw, u32 changed) |
f078f209 | 2316 | { |
bce048d7 JM |
2317 | struct ath_wiphy *aphy = hw->priv; |
2318 | struct ath_softc *sc = aphy->sc; | |
e8975581 | 2319 | struct ieee80211_conf *conf = &hw->conf; |
f078f209 | 2320 | |
aa33de09 | 2321 | mutex_lock(&sc->mutex); |
141b38b6 | 2322 | |
3cbb5dd7 VN |
2323 | if (changed & IEEE80211_CONF_CHANGE_PS) { |
2324 | if (conf->flags & IEEE80211_CONF_PS) { | |
17d7904d S |
2325 | if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { |
2326 | sc->imask |= ATH9K_INT_TIM_TIMER; | |
3cbb5dd7 | 2327 | ath9k_hw_set_interrupts(sc->sc_ah, |
17d7904d | 2328 | sc->imask); |
3cbb5dd7 VN |
2329 | } |
2330 | ath9k_hw_setrxabort(sc->sc_ah, 1); | |
2331 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); | |
2332 | } else { | |
2333 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); | |
2334 | ath9k_hw_setrxabort(sc->sc_ah, 0); | |
2335 | sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON; | |
17d7904d S |
2336 | if (sc->imask & ATH9K_INT_TIM_TIMER) { |
2337 | sc->imask &= ~ATH9K_INT_TIM_TIMER; | |
3cbb5dd7 | 2338 | ath9k_hw_set_interrupts(sc->sc_ah, |
17d7904d | 2339 | sc->imask); |
3cbb5dd7 VN |
2340 | } |
2341 | } | |
2342 | } | |
2343 | ||
4797938c | 2344 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
99405f93 | 2345 | struct ieee80211_channel *curchan = hw->conf.channel; |
5f8e077c | 2346 | int pos = curchan->hw_value; |
ae5eb026 | 2347 | |
0e2dedf9 JM |
2348 | aphy->chan_idx = pos; |
2349 | aphy->chan_is_ht = conf_is_ht(conf); | |
2350 | ||
2351 | /* TODO: do not change operation channel immediately if there | |
18eb62f8 JM |
2352 | * are other virtual wiphys that use another channel. For now, |
2353 | * we do the change immediately to allow mac80211-operated scan | |
2354 | * to work. Once the scan operation is moved into ath9k, we can | |
2355 | * just move the current aphy in PAUSED state if the channel is | |
2356 | * changed into something different from the current operation | |
2357 | * channel. */ | |
2358 | ath9k_wiphy_pause_all_forced(sc, aphy); | |
0e2dedf9 | 2359 | |
04bd4638 S |
2360 | DPRINTF(sc, ATH_DBG_CONFIG, "Set channel: %d MHz\n", |
2361 | curchan->center_freq); | |
f078f209 | 2362 | |
5f8e077c | 2363 | /* XXX: remove me eventualy */ |
0e2dedf9 | 2364 | ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]); |
e11602b7 | 2365 | |
ecf70441 | 2366 | ath_update_chainmask(sc, conf_is_ht(conf)); |
86060f0d | 2367 | |
0e2dedf9 | 2368 | if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { |
04bd4638 | 2369 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n"); |
aa33de09 | 2370 | mutex_unlock(&sc->mutex); |
e11602b7 S |
2371 | return -EINVAL; |
2372 | } | |
094d05dc | 2373 | } |
f078f209 | 2374 | |
5c020dc6 | 2375 | if (changed & IEEE80211_CONF_CHANGE_POWER) |
17d7904d | 2376 | sc->config.txpowlimit = 2 * conf->power_level; |
f078f209 | 2377 | |
b238e90e S |
2378 | /* |
2379 | * The HW TSF has to be reset when the beacon interval changes. | |
2380 | * We set the flag here, and ath_beacon_config_ap() would take this | |
2381 | * into account when it gets called through the subsequent | |
2382 | * config_interface() call - with IFCC_BEACON in the changed field. | |
2383 | */ | |
2384 | ||
2385 | if (changed & IEEE80211_CONF_CHANGE_BEACON_INTERVAL) | |
2386 | sc->sc_flags |= SC_OP_TSF_RESET; | |
2387 | ||
aa33de09 | 2388 | mutex_unlock(&sc->mutex); |
141b38b6 | 2389 | |
f078f209 LR |
2390 | return 0; |
2391 | } | |
2392 | ||
8feceb67 VT |
2393 | static int ath9k_config_interface(struct ieee80211_hw *hw, |
2394 | struct ieee80211_vif *vif, | |
2395 | struct ieee80211_if_conf *conf) | |
c83be688 | 2396 | { |
bce048d7 JM |
2397 | struct ath_wiphy *aphy = hw->priv; |
2398 | struct ath_softc *sc = aphy->sc; | |
cbe61d8a | 2399 | struct ath_hw *ah = sc->sc_ah; |
17d7904d | 2400 | struct ath_vif *avp = (void *)vif->drv_priv; |
8feceb67 VT |
2401 | u32 rfilt = 0; |
2402 | int error, i; | |
c83be688 | 2403 | |
2554935b S |
2404 | mutex_lock(&sc->mutex); |
2405 | ||
8feceb67 VT |
2406 | /* TODO: Need to decide which hw opmode to use for multi-interface |
2407 | * cases */ | |
05c914fe | 2408 | if (vif->type == NL80211_IFTYPE_AP && |
2660b81a S |
2409 | ah->opmode != NL80211_IFTYPE_AP) { |
2410 | ah->opmode = NL80211_IFTYPE_STATION; | |
8feceb67 | 2411 | ath9k_hw_setopmode(ah); |
ba52da58 S |
2412 | memcpy(sc->curbssid, sc->sc_ah->macaddr, ETH_ALEN); |
2413 | sc->curaid = 0; | |
2414 | ath9k_hw_write_associd(sc); | |
8feceb67 VT |
2415 | /* Request full reset to get hw opmode changed properly */ |
2416 | sc->sc_flags |= SC_OP_FULL_RESET; | |
2417 | } | |
c83be688 | 2418 | |
8feceb67 VT |
2419 | if ((conf->changed & IEEE80211_IFCC_BSSID) && |
2420 | !is_zero_ether_addr(conf->bssid)) { | |
2421 | switch (vif->type) { | |
05c914fe JB |
2422 | case NL80211_IFTYPE_STATION: |
2423 | case NL80211_IFTYPE_ADHOC: | |
8feceb67 | 2424 | /* Set BSSID */ |
17d7904d | 2425 | memcpy(sc->curbssid, conf->bssid, ETH_ALEN); |
f0ed85c6 | 2426 | memcpy(avp->bssid, conf->bssid, ETH_ALEN); |
17d7904d | 2427 | sc->curaid = 0; |
ba52da58 | 2428 | ath9k_hw_write_associd(sc); |
c83be688 | 2429 | |
8feceb67 | 2430 | /* Set aggregation protection mode parameters */ |
17d7904d | 2431 | sc->config.ath_aggr_prot = 0; |
c83be688 | 2432 | |
8feceb67 | 2433 | DPRINTF(sc, ATH_DBG_CONFIG, |
04bd4638 | 2434 | "RX filter 0x%x bssid %pM aid 0x%x\n", |
17d7904d | 2435 | rfilt, sc->curbssid, sc->curaid); |
c83be688 | 2436 | |
8feceb67 VT |
2437 | /* need to reconfigure the beacon */ |
2438 | sc->sc_flags &= ~SC_OP_BEACONS ; | |
c83be688 | 2439 | |
8feceb67 VT |
2440 | break; |
2441 | default: | |
2442 | break; | |
2443 | } | |
2444 | } | |
c83be688 | 2445 | |
1f7d6cbf S |
2446 | if ((vif->type == NL80211_IFTYPE_ADHOC) || |
2447 | (vif->type == NL80211_IFTYPE_AP)) { | |
2448 | if ((conf->changed & IEEE80211_IFCC_BEACON) || | |
2449 | (conf->changed & IEEE80211_IFCC_BEACON_ENABLED && | |
2450 | conf->enable_beacon)) { | |
2451 | /* | |
2452 | * Allocate and setup the beacon frame. | |
2453 | * | |
2454 | * Stop any previous beacon DMA. This may be | |
2455 | * necessary, for example, when an ibss merge | |
2456 | * causes reconfiguration; we may be called | |
2457 | * with beacon transmission active. | |
2458 | */ | |
2459 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); | |
c83be688 | 2460 | |
c52f33d0 | 2461 | error = ath_beacon_alloc(aphy, vif); |
2554935b S |
2462 | if (error != 0) { |
2463 | mutex_unlock(&sc->mutex); | |
1f7d6cbf | 2464 | return error; |
2554935b | 2465 | } |
c83be688 | 2466 | |
2c3db3d5 | 2467 | ath_beacon_config(sc, vif); |
1f7d6cbf | 2468 | } |
8feceb67 | 2469 | } |
c83be688 | 2470 | |
8feceb67 | 2471 | /* Check for WLAN_CAPABILITY_PRIVACY ? */ |
d97809db | 2472 | if ((avp->av_opmode != NL80211_IFTYPE_STATION)) { |
8feceb67 VT |
2473 | for (i = 0; i < IEEE80211_WEP_NKID; i++) |
2474 | if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i)) | |
2475 | ath9k_hw_keysetmac(sc->sc_ah, | |
2476 | (u16)i, | |
17d7904d | 2477 | sc->curbssid); |
8feceb67 | 2478 | } |
c83be688 | 2479 | |
8feceb67 | 2480 | /* Only legacy IBSS for now */ |
05c914fe | 2481 | if (vif->type == NL80211_IFTYPE_ADHOC) |
8feceb67 | 2482 | ath_update_chainmask(sc, 0); |
f078f209 | 2483 | |
2554935b S |
2484 | mutex_unlock(&sc->mutex); |
2485 | ||
8feceb67 VT |
2486 | return 0; |
2487 | } | |
f078f209 | 2488 | |
8feceb67 VT |
2489 | #define SUPPORTED_FILTERS \ |
2490 | (FIF_PROMISC_IN_BSS | \ | |
2491 | FIF_ALLMULTI | \ | |
2492 | FIF_CONTROL | \ | |
2493 | FIF_OTHER_BSS | \ | |
2494 | FIF_BCN_PRBRESP_PROMISC | \ | |
2495 | FIF_FCSFAIL) | |
c83be688 | 2496 | |
8feceb67 VT |
2497 | /* FIXME: sc->sc_full_reset ? */ |
2498 | static void ath9k_configure_filter(struct ieee80211_hw *hw, | |
2499 | unsigned int changed_flags, | |
2500 | unsigned int *total_flags, | |
2501 | int mc_count, | |
2502 | struct dev_mc_list *mclist) | |
2503 | { | |
bce048d7 JM |
2504 | struct ath_wiphy *aphy = hw->priv; |
2505 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2506 | u32 rfilt; |
f078f209 | 2507 | |
8feceb67 VT |
2508 | changed_flags &= SUPPORTED_FILTERS; |
2509 | *total_flags &= SUPPORTED_FILTERS; | |
f078f209 | 2510 | |
b77f483f | 2511 | sc->rx.rxfilter = *total_flags; |
8feceb67 VT |
2512 | rfilt = ath_calcrxfilter(sc); |
2513 | ath9k_hw_setrxfilter(sc->sc_ah, rfilt); | |
f078f209 | 2514 | |
b77f483f | 2515 | DPRINTF(sc, ATH_DBG_CONFIG, "Set HW RX filter: 0x%x\n", sc->rx.rxfilter); |
8feceb67 | 2516 | } |
f078f209 | 2517 | |
8feceb67 VT |
2518 | static void ath9k_sta_notify(struct ieee80211_hw *hw, |
2519 | struct ieee80211_vif *vif, | |
2520 | enum sta_notify_cmd cmd, | |
17741cdc | 2521 | struct ieee80211_sta *sta) |
8feceb67 | 2522 | { |
bce048d7 JM |
2523 | struct ath_wiphy *aphy = hw->priv; |
2524 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2525 | |
8feceb67 VT |
2526 | switch (cmd) { |
2527 | case STA_NOTIFY_ADD: | |
5640b08e | 2528 | ath_node_attach(sc, sta); |
8feceb67 VT |
2529 | break; |
2530 | case STA_NOTIFY_REMOVE: | |
b5aa9bf9 | 2531 | ath_node_detach(sc, sta); |
8feceb67 VT |
2532 | break; |
2533 | default: | |
2534 | break; | |
2535 | } | |
f078f209 LR |
2536 | } |
2537 | ||
141b38b6 | 2538 | static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
8feceb67 | 2539 | const struct ieee80211_tx_queue_params *params) |
f078f209 | 2540 | { |
bce048d7 JM |
2541 | struct ath_wiphy *aphy = hw->priv; |
2542 | struct ath_softc *sc = aphy->sc; | |
8feceb67 VT |
2543 | struct ath9k_tx_queue_info qi; |
2544 | int ret = 0, qnum; | |
f078f209 | 2545 | |
8feceb67 VT |
2546 | if (queue >= WME_NUM_AC) |
2547 | return 0; | |
f078f209 | 2548 | |
141b38b6 S |
2549 | mutex_lock(&sc->mutex); |
2550 | ||
8feceb67 VT |
2551 | qi.tqi_aifs = params->aifs; |
2552 | qi.tqi_cwmin = params->cw_min; | |
2553 | qi.tqi_cwmax = params->cw_max; | |
2554 | qi.tqi_burstTime = params->txop; | |
2555 | qnum = ath_get_hal_qnum(queue, sc); | |
f078f209 | 2556 | |
8feceb67 | 2557 | DPRINTF(sc, ATH_DBG_CONFIG, |
04bd4638 | 2558 | "Configure tx [queue/halq] [%d/%d], " |
8feceb67 | 2559 | "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", |
04bd4638 S |
2560 | queue, qnum, params->aifs, params->cw_min, |
2561 | params->cw_max, params->txop); | |
f078f209 | 2562 | |
8feceb67 VT |
2563 | ret = ath_txq_update(sc, qnum, &qi); |
2564 | if (ret) | |
04bd4638 | 2565 | DPRINTF(sc, ATH_DBG_FATAL, "TXQ Update failed\n"); |
f078f209 | 2566 | |
141b38b6 S |
2567 | mutex_unlock(&sc->mutex); |
2568 | ||
8feceb67 VT |
2569 | return ret; |
2570 | } | |
f078f209 | 2571 | |
8feceb67 VT |
2572 | static int ath9k_set_key(struct ieee80211_hw *hw, |
2573 | enum set_key_cmd cmd, | |
dc822b5d JB |
2574 | struct ieee80211_vif *vif, |
2575 | struct ieee80211_sta *sta, | |
8feceb67 VT |
2576 | struct ieee80211_key_conf *key) |
2577 | { | |
bce048d7 JM |
2578 | struct ath_wiphy *aphy = hw->priv; |
2579 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2580 | int ret = 0; |
f078f209 | 2581 | |
b3bd89ce JM |
2582 | if (modparam_nohwcrypt) |
2583 | return -ENOSPC; | |
2584 | ||
141b38b6 | 2585 | mutex_lock(&sc->mutex); |
3cbb5dd7 | 2586 | ath9k_ps_wakeup(sc); |
04bd4638 | 2587 | DPRINTF(sc, ATH_DBG_KEYCACHE, "Set HW Key\n"); |
f078f209 | 2588 | |
8feceb67 VT |
2589 | switch (cmd) { |
2590 | case SET_KEY: | |
3f53dd64 | 2591 | ret = ath_key_config(sc, vif, sta, key); |
6ace2891 JM |
2592 | if (ret >= 0) { |
2593 | key->hw_key_idx = ret; | |
8feceb67 VT |
2594 | /* push IV and Michael MIC generation to stack */ |
2595 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
2596 | if (key->alg == ALG_TKIP) | |
2597 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
0ced0e17 JM |
2598 | if (sc->sc_ah->sw_mgmt_crypto && key->alg == ALG_CCMP) |
2599 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; | |
6ace2891 | 2600 | ret = 0; |
8feceb67 VT |
2601 | } |
2602 | break; | |
2603 | case DISABLE_KEY: | |
2604 | ath_key_delete(sc, key); | |
8feceb67 VT |
2605 | break; |
2606 | default: | |
2607 | ret = -EINVAL; | |
2608 | } | |
f078f209 | 2609 | |
3cbb5dd7 | 2610 | ath9k_ps_restore(sc); |
141b38b6 S |
2611 | mutex_unlock(&sc->mutex); |
2612 | ||
8feceb67 VT |
2613 | return ret; |
2614 | } | |
f078f209 | 2615 | |
8feceb67 VT |
2616 | static void ath9k_bss_info_changed(struct ieee80211_hw *hw, |
2617 | struct ieee80211_vif *vif, | |
2618 | struct ieee80211_bss_conf *bss_conf, | |
2619 | u32 changed) | |
2620 | { | |
bce048d7 JM |
2621 | struct ath_wiphy *aphy = hw->priv; |
2622 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2623 | |
141b38b6 S |
2624 | mutex_lock(&sc->mutex); |
2625 | ||
8feceb67 | 2626 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
04bd4638 | 2627 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", |
8feceb67 VT |
2628 | bss_conf->use_short_preamble); |
2629 | if (bss_conf->use_short_preamble) | |
2630 | sc->sc_flags |= SC_OP_PREAMBLE_SHORT; | |
2631 | else | |
2632 | sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; | |
2633 | } | |
f078f209 | 2634 | |
8feceb67 | 2635 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
04bd4638 | 2636 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", |
8feceb67 VT |
2637 | bss_conf->use_cts_prot); |
2638 | if (bss_conf->use_cts_prot && | |
2639 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) | |
2640 | sc->sc_flags |= SC_OP_PROTECT_ENABLE; | |
2641 | else | |
2642 | sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; | |
2643 | } | |
f078f209 | 2644 | |
8feceb67 | 2645 | if (changed & BSS_CHANGED_ASSOC) { |
04bd4638 | 2646 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", |
8feceb67 | 2647 | bss_conf->assoc); |
5640b08e | 2648 | ath9k_bss_assoc_info(sc, vif, bss_conf); |
8feceb67 | 2649 | } |
141b38b6 S |
2650 | |
2651 | mutex_unlock(&sc->mutex); | |
8feceb67 | 2652 | } |
f078f209 | 2653 | |
8feceb67 VT |
2654 | static u64 ath9k_get_tsf(struct ieee80211_hw *hw) |
2655 | { | |
2656 | u64 tsf; | |
bce048d7 JM |
2657 | struct ath_wiphy *aphy = hw->priv; |
2658 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 2659 | |
141b38b6 S |
2660 | mutex_lock(&sc->mutex); |
2661 | tsf = ath9k_hw_gettsf64(sc->sc_ah); | |
2662 | mutex_unlock(&sc->mutex); | |
f078f209 | 2663 | |
8feceb67 VT |
2664 | return tsf; |
2665 | } | |
f078f209 | 2666 | |
3b5d665b AF |
2667 | static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
2668 | { | |
bce048d7 JM |
2669 | struct ath_wiphy *aphy = hw->priv; |
2670 | struct ath_softc *sc = aphy->sc; | |
3b5d665b | 2671 | |
141b38b6 S |
2672 | mutex_lock(&sc->mutex); |
2673 | ath9k_hw_settsf64(sc->sc_ah, tsf); | |
2674 | mutex_unlock(&sc->mutex); | |
3b5d665b AF |
2675 | } |
2676 | ||
8feceb67 VT |
2677 | static void ath9k_reset_tsf(struct ieee80211_hw *hw) |
2678 | { | |
bce048d7 JM |
2679 | struct ath_wiphy *aphy = hw->priv; |
2680 | struct ath_softc *sc = aphy->sc; | |
c83be688 | 2681 | |
141b38b6 S |
2682 | mutex_lock(&sc->mutex); |
2683 | ath9k_hw_reset_tsf(sc->sc_ah); | |
2684 | mutex_unlock(&sc->mutex); | |
8feceb67 | 2685 | } |
f078f209 | 2686 | |
8feceb67 | 2687 | static int ath9k_ampdu_action(struct ieee80211_hw *hw, |
141b38b6 S |
2688 | enum ieee80211_ampdu_mlme_action action, |
2689 | struct ieee80211_sta *sta, | |
2690 | u16 tid, u16 *ssn) | |
8feceb67 | 2691 | { |
bce048d7 JM |
2692 | struct ath_wiphy *aphy = hw->priv; |
2693 | struct ath_softc *sc = aphy->sc; | |
8feceb67 | 2694 | int ret = 0; |
f078f209 | 2695 | |
8feceb67 VT |
2696 | switch (action) { |
2697 | case IEEE80211_AMPDU_RX_START: | |
dca3edb8 S |
2698 | if (!(sc->sc_flags & SC_OP_RXAGGR)) |
2699 | ret = -ENOTSUPP; | |
8feceb67 VT |
2700 | break; |
2701 | case IEEE80211_AMPDU_RX_STOP: | |
8feceb67 VT |
2702 | break; |
2703 | case IEEE80211_AMPDU_TX_START: | |
b5aa9bf9 | 2704 | ret = ath_tx_aggr_start(sc, sta, tid, ssn); |
8feceb67 VT |
2705 | if (ret < 0) |
2706 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 2707 | "Unable to start TX aggregation\n"); |
8feceb67 | 2708 | else |
17741cdc | 2709 | ieee80211_start_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
8feceb67 VT |
2710 | break; |
2711 | case IEEE80211_AMPDU_TX_STOP: | |
b5aa9bf9 | 2712 | ret = ath_tx_aggr_stop(sc, sta, tid); |
8feceb67 VT |
2713 | if (ret < 0) |
2714 | DPRINTF(sc, ATH_DBG_FATAL, | |
04bd4638 | 2715 | "Unable to stop TX aggregation\n"); |
f078f209 | 2716 | |
17741cdc | 2717 | ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
8feceb67 | 2718 | break; |
8469cdef S |
2719 | case IEEE80211_AMPDU_TX_RESUME: |
2720 | ath_tx_aggr_resume(sc, sta, tid); | |
2721 | break; | |
8feceb67 | 2722 | default: |
04bd4638 | 2723 | DPRINTF(sc, ATH_DBG_FATAL, "Unknown AMPDU action\n"); |
8feceb67 VT |
2724 | } |
2725 | ||
2726 | return ret; | |
f078f209 LR |
2727 | } |
2728 | ||
0c98de65 S |
2729 | static void ath9k_sw_scan_start(struct ieee80211_hw *hw) |
2730 | { | |
bce048d7 JM |
2731 | struct ath_wiphy *aphy = hw->priv; |
2732 | struct ath_softc *sc = aphy->sc; | |
0c98de65 S |
2733 | |
2734 | mutex_lock(&sc->mutex); | |
2735 | sc->sc_flags |= SC_OP_SCANNING; | |
2736 | mutex_unlock(&sc->mutex); | |
2737 | } | |
2738 | ||
2739 | static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) | |
2740 | { | |
bce048d7 JM |
2741 | struct ath_wiphy *aphy = hw->priv; |
2742 | struct ath_softc *sc = aphy->sc; | |
0c98de65 S |
2743 | |
2744 | mutex_lock(&sc->mutex); | |
2745 | sc->sc_flags &= ~SC_OP_SCANNING; | |
2746 | mutex_unlock(&sc->mutex); | |
2747 | } | |
2748 | ||
6baff7f9 | 2749 | struct ieee80211_ops ath9k_ops = { |
8feceb67 VT |
2750 | .tx = ath9k_tx, |
2751 | .start = ath9k_start, | |
2752 | .stop = ath9k_stop, | |
2753 | .add_interface = ath9k_add_interface, | |
2754 | .remove_interface = ath9k_remove_interface, | |
2755 | .config = ath9k_config, | |
2756 | .config_interface = ath9k_config_interface, | |
2757 | .configure_filter = ath9k_configure_filter, | |
8feceb67 VT |
2758 | .sta_notify = ath9k_sta_notify, |
2759 | .conf_tx = ath9k_conf_tx, | |
8feceb67 | 2760 | .bss_info_changed = ath9k_bss_info_changed, |
8feceb67 | 2761 | .set_key = ath9k_set_key, |
8feceb67 | 2762 | .get_tsf = ath9k_get_tsf, |
3b5d665b | 2763 | .set_tsf = ath9k_set_tsf, |
8feceb67 | 2764 | .reset_tsf = ath9k_reset_tsf, |
4233df6b | 2765 | .ampdu_action = ath9k_ampdu_action, |
0c98de65 S |
2766 | .sw_scan_start = ath9k_sw_scan_start, |
2767 | .sw_scan_complete = ath9k_sw_scan_complete, | |
8feceb67 VT |
2768 | }; |
2769 | ||
392dff83 BP |
2770 | static struct { |
2771 | u32 version; | |
2772 | const char * name; | |
2773 | } ath_mac_bb_names[] = { | |
2774 | { AR_SREV_VERSION_5416_PCI, "5416" }, | |
2775 | { AR_SREV_VERSION_5416_PCIE, "5418" }, | |
2776 | { AR_SREV_VERSION_9100, "9100" }, | |
2777 | { AR_SREV_VERSION_9160, "9160" }, | |
2778 | { AR_SREV_VERSION_9280, "9280" }, | |
2779 | { AR_SREV_VERSION_9285, "9285" } | |
2780 | }; | |
2781 | ||
2782 | static struct { | |
2783 | u16 version; | |
2784 | const char * name; | |
2785 | } ath_rf_names[] = { | |
2786 | { 0, "5133" }, | |
2787 | { AR_RAD5133_SREV_MAJOR, "5133" }, | |
2788 | { AR_RAD5122_SREV_MAJOR, "5122" }, | |
2789 | { AR_RAD2133_SREV_MAJOR, "2133" }, | |
2790 | { AR_RAD2122_SREV_MAJOR, "2122" } | |
2791 | }; | |
2792 | ||
2793 | /* | |
2794 | * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown. | |
2795 | */ | |
6baff7f9 | 2796 | const char * |
392dff83 BP |
2797 | ath_mac_bb_name(u32 mac_bb_version) |
2798 | { | |
2799 | int i; | |
2800 | ||
2801 | for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) { | |
2802 | if (ath_mac_bb_names[i].version == mac_bb_version) { | |
2803 | return ath_mac_bb_names[i].name; | |
2804 | } | |
2805 | } | |
2806 | ||
2807 | return "????"; | |
2808 | } | |
2809 | ||
2810 | /* | |
2811 | * Return the RF name. "????" is returned if the RF is unknown. | |
2812 | */ | |
6baff7f9 | 2813 | const char * |
392dff83 BP |
2814 | ath_rf_name(u16 rf_version) |
2815 | { | |
2816 | int i; | |
2817 | ||
2818 | for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) { | |
2819 | if (ath_rf_names[i].version == rf_version) { | |
2820 | return ath_rf_names[i].name; | |
2821 | } | |
2822 | } | |
2823 | ||
2824 | return "????"; | |
2825 | } | |
2826 | ||
6baff7f9 | 2827 | static int __init ath9k_init(void) |
f078f209 | 2828 | { |
ca8a8560 VT |
2829 | int error; |
2830 | ||
ca8a8560 VT |
2831 | /* Register rate control algorithm */ |
2832 | error = ath_rate_control_register(); | |
2833 | if (error != 0) { | |
2834 | printk(KERN_ERR | |
b51bb3cd LR |
2835 | "ath9k: Unable to register rate control " |
2836 | "algorithm: %d\n", | |
ca8a8560 | 2837 | error); |
6baff7f9 | 2838 | goto err_out; |
ca8a8560 VT |
2839 | } |
2840 | ||
6baff7f9 GJ |
2841 | error = ath_pci_init(); |
2842 | if (error < 0) { | |
f078f209 | 2843 | printk(KERN_ERR |
b51bb3cd | 2844 | "ath9k: No PCI devices found, driver not installed.\n"); |
6baff7f9 GJ |
2845 | error = -ENODEV; |
2846 | goto err_rate_unregister; | |
f078f209 LR |
2847 | } |
2848 | ||
09329d37 GJ |
2849 | error = ath_ahb_init(); |
2850 | if (error < 0) { | |
2851 | error = -ENODEV; | |
2852 | goto err_pci_exit; | |
2853 | } | |
2854 | ||
f078f209 | 2855 | return 0; |
6baff7f9 | 2856 | |
09329d37 GJ |
2857 | err_pci_exit: |
2858 | ath_pci_exit(); | |
2859 | ||
6baff7f9 GJ |
2860 | err_rate_unregister: |
2861 | ath_rate_control_unregister(); | |
2862 | err_out: | |
2863 | return error; | |
f078f209 | 2864 | } |
6baff7f9 | 2865 | module_init(ath9k_init); |
f078f209 | 2866 | |
6baff7f9 | 2867 | static void __exit ath9k_exit(void) |
f078f209 | 2868 | { |
09329d37 | 2869 | ath_ahb_exit(); |
6baff7f9 | 2870 | ath_pci_exit(); |
ca8a8560 | 2871 | ath_rate_control_unregister(); |
04bd4638 | 2872 | printk(KERN_INFO "%s: Driver unloaded\n", dev_info); |
f078f209 | 2873 | } |
6baff7f9 | 2874 | module_exit(ath9k_exit); |