diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_main.c')
-rw-r--r-- | drivers/net/wireless/ath/ath9k/htc_drv_main.c | 1775 |
1 files changed, 1775 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c new file mode 100644 index 00000000000..9d371c18eb4 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c | |||
@@ -0,0 +1,1775 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2010 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 | |||
17 | #include "htc.h" | ||
18 | |||
19 | #ifdef CONFIG_ATH9K_HTC_DEBUGFS | ||
20 | static struct dentry *ath9k_debugfs_root; | ||
21 | #endif | ||
22 | |||
23 | /*************/ | ||
24 | /* Utilities */ | ||
25 | /*************/ | ||
26 | |||
27 | static void ath_update_txpow(struct ath9k_htc_priv *priv) | ||
28 | { | ||
29 | struct ath_hw *ah = priv->ah; | ||
30 | u32 txpow; | ||
31 | |||
32 | if (priv->curtxpow != priv->txpowlimit) { | ||
33 | ath9k_hw_set_txpowerlimit(ah, priv->txpowlimit); | ||
34 | /* read back in case value is clamped */ | ||
35 | ath9k_hw_getcapability(ah, ATH9K_CAP_TXPOW, 1, &txpow); | ||
36 | priv->curtxpow = txpow; | ||
37 | } | ||
38 | } | ||
39 | |||
40 | /* HACK Alert: Use 11NG for 2.4, use 11NA for 5 */ | ||
41 | static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv, | ||
42 | struct ath9k_channel *ichan) | ||
43 | { | ||
44 | enum htc_phymode mode; | ||
45 | |||
46 | mode = HTC_MODE_AUTO; | ||
47 | |||
48 | switch (ichan->chanmode) { | ||
49 | case CHANNEL_G: | ||
50 | case CHANNEL_G_HT20: | ||
51 | case CHANNEL_G_HT40PLUS: | ||
52 | case CHANNEL_G_HT40MINUS: | ||
53 | mode = HTC_MODE_11NG; | ||
54 | break; | ||
55 | case CHANNEL_A: | ||
56 | case CHANNEL_A_HT20: | ||
57 | case CHANNEL_A_HT40PLUS: | ||
58 | case CHANNEL_A_HT40MINUS: | ||
59 | mode = HTC_MODE_11NA; | ||
60 | break; | ||
61 | default: | ||
62 | break; | ||
63 | } | ||
64 | |||
65 | return mode; | ||
66 | } | ||
67 | |||
68 | static bool ath9k_htc_setpower(struct ath9k_htc_priv *priv, | ||
69 | enum ath9k_power_mode mode) | ||
70 | { | ||
71 | bool ret; | ||
72 | |||
73 | mutex_lock(&priv->htc_pm_lock); | ||
74 | ret = ath9k_hw_setpower(priv->ah, mode); | ||
75 | mutex_unlock(&priv->htc_pm_lock); | ||
76 | |||
77 | return ret; | ||
78 | } | ||
79 | |||
80 | void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv) | ||
81 | { | ||
82 | mutex_lock(&priv->htc_pm_lock); | ||
83 | if (++priv->ps_usecount != 1) | ||
84 | goto unlock; | ||
85 | ath9k_hw_setpower(priv->ah, ATH9K_PM_AWAKE); | ||
86 | |||
87 | unlock: | ||
88 | mutex_unlock(&priv->htc_pm_lock); | ||
89 | } | ||
90 | |||
91 | void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv) | ||
92 | { | ||
93 | mutex_lock(&priv->htc_pm_lock); | ||
94 | if (--priv->ps_usecount != 0) | ||
95 | goto unlock; | ||
96 | |||
97 | if (priv->ps_idle) | ||
98 | ath9k_hw_setpower(priv->ah, ATH9K_PM_FULL_SLEEP); | ||
99 | else if (priv->ps_enabled) | ||
100 | ath9k_hw_setpower(priv->ah, ATH9K_PM_NETWORK_SLEEP); | ||
101 | |||
102 | unlock: | ||
103 | mutex_unlock(&priv->htc_pm_lock); | ||
104 | } | ||
105 | |||
106 | void ath9k_ps_work(struct work_struct *work) | ||
107 | { | ||
108 | struct ath9k_htc_priv *priv = | ||
109 | container_of(work, struct ath9k_htc_priv, | ||
110 | ps_work); | ||
111 | ath9k_htc_setpower(priv, ATH9K_PM_AWAKE); | ||
112 | |||
113 | /* The chip wakes up after receiving the first beacon | ||
114 | while network sleep is enabled. For the driver to | ||
115 | be in sync with the hw, set the chip to awake and | ||
116 | only then set it to sleep. | ||
117 | */ | ||
118 | ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP); | ||
119 | } | ||
120 | |||
121 | static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv, | ||
122 | struct ieee80211_hw *hw, | ||
123 | struct ath9k_channel *hchan) | ||
124 | { | ||
125 | struct ath_hw *ah = priv->ah; | ||
126 | struct ath_common *common = ath9k_hw_common(ah); | ||
127 | struct ieee80211_conf *conf = &common->hw->conf; | ||
128 | bool fastcc = true; | ||
129 | struct ieee80211_channel *channel = hw->conf.channel; | ||
130 | enum htc_phymode mode; | ||
131 | __be16 htc_mode; | ||
132 | u8 cmd_rsp; | ||
133 | int ret; | ||
134 | |||
135 | if (priv->op_flags & OP_INVALID) | ||
136 | return -EIO; | ||
137 | |||
138 | if (priv->op_flags & OP_FULL_RESET) | ||
139 | fastcc = false; | ||
140 | |||
141 | /* Fiddle around with fastcc later on, for now just use full reset */ | ||
142 | fastcc = false; | ||
143 | ath9k_htc_ps_wakeup(priv); | ||
144 | htc_stop(priv->htc); | ||
145 | WMI_CMD(WMI_DISABLE_INTR_CMDID); | ||
146 | WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID); | ||
147 | WMI_CMD(WMI_STOP_RECV_CMDID); | ||
148 | |||
149 | ath_print(common, ATH_DBG_CONFIG, | ||
150 | "(%u MHz) -> (%u MHz), HT: %d, HT40: %d\n", | ||
151 | priv->ah->curchan->channel, | ||
152 | channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf)); | ||
153 | |||
154 | ret = ath9k_hw_reset(ah, hchan, fastcc); | ||
155 | if (ret) { | ||
156 | ath_print(common, ATH_DBG_FATAL, | ||
157 | "Unable to reset channel (%u Mhz) " | ||
158 | "reset status %d\n", channel->center_freq, ret); | ||
159 | goto err; | ||
160 | } | ||
161 | |||
162 | ath_update_txpow(priv); | ||
163 | |||
164 | WMI_CMD(WMI_START_RECV_CMDID); | ||
165 | if (ret) | ||
166 | goto err; | ||
167 | |||
168 | ath9k_host_rx_init(priv); | ||
169 | |||
170 | mode = ath9k_htc_get_curmode(priv, hchan); | ||
171 | htc_mode = cpu_to_be16(mode); | ||
172 | WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode); | ||
173 | if (ret) | ||
174 | goto err; | ||
175 | |||
176 | WMI_CMD(WMI_ENABLE_INTR_CMDID); | ||
177 | if (ret) | ||
178 | goto err; | ||
179 | |||
180 | htc_start(priv->htc); | ||
181 | |||
182 | priv->op_flags &= ~OP_FULL_RESET; | ||
183 | err: | ||
184 | ath9k_htc_ps_restore(priv); | ||
185 | return ret; | ||
186 | } | ||
187 | |||
188 | static int ath9k_htc_add_monitor_interface(struct ath9k_htc_priv *priv) | ||
189 | { | ||
190 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
191 | struct ath9k_htc_target_vif hvif; | ||
192 | int ret = 0; | ||
193 | u8 cmd_rsp; | ||
194 | |||
195 | if (priv->nvifs > 0) | ||
196 | return -ENOBUFS; | ||
197 | |||
198 | memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif)); | ||
199 | memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN); | ||
200 | |||
201 | hvif.opmode = cpu_to_be32(HTC_M_MONITOR); | ||
202 | priv->ah->opmode = NL80211_IFTYPE_MONITOR; | ||
203 | hvif.index = priv->nvifs; | ||
204 | |||
205 | WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif); | ||
206 | if (ret) | ||
207 | return ret; | ||
208 | |||
209 | priv->nvifs++; | ||
210 | return 0; | ||
211 | } | ||
212 | |||
213 | static int ath9k_htc_remove_monitor_interface(struct ath9k_htc_priv *priv) | ||
214 | { | ||
215 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
216 | struct ath9k_htc_target_vif hvif; | ||
217 | int ret = 0; | ||
218 | u8 cmd_rsp; | ||
219 | |||
220 | memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif)); | ||
221 | memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN); | ||
222 | hvif.index = 0; /* Should do for now */ | ||
223 | WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif); | ||
224 | priv->nvifs--; | ||
225 | |||
226 | return ret; | ||
227 | } | ||
228 | |||
229 | static int ath9k_htc_add_station(struct ath9k_htc_priv *priv, | ||
230 | struct ieee80211_vif *vif, | ||
231 | struct ieee80211_sta *sta) | ||
232 | { | ||
233 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
234 | struct ath9k_htc_target_sta tsta; | ||
235 | struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv; | ||
236 | struct ath9k_htc_sta *ista; | ||
237 | int ret; | ||
238 | u8 cmd_rsp; | ||
239 | |||
240 | if (priv->nstations >= ATH9K_HTC_MAX_STA) | ||
241 | return -ENOBUFS; | ||
242 | |||
243 | memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta)); | ||
244 | |||
245 | if (sta) { | ||
246 | ista = (struct ath9k_htc_sta *) sta->drv_priv; | ||
247 | memcpy(&tsta.macaddr, sta->addr, ETH_ALEN); | ||
248 | memcpy(&tsta.bssid, common->curbssid, ETH_ALEN); | ||
249 | tsta.associd = common->curaid; | ||
250 | tsta.is_vif_sta = 0; | ||
251 | tsta.valid = true; | ||
252 | ista->index = priv->nstations; | ||
253 | } else { | ||
254 | memcpy(&tsta.macaddr, vif->addr, ETH_ALEN); | ||
255 | tsta.is_vif_sta = 1; | ||
256 | } | ||
257 | |||
258 | tsta.sta_index = priv->nstations; | ||
259 | tsta.vif_index = avp->index; | ||
260 | tsta.maxampdu = 0xffff; | ||
261 | if (sta && sta->ht_cap.ht_supported) | ||
262 | tsta.flags = cpu_to_be16(ATH_HTC_STA_HT); | ||
263 | |||
264 | WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta); | ||
265 | if (ret) { | ||
266 | if (sta) | ||
267 | ath_print(common, ATH_DBG_FATAL, | ||
268 | "Unable to add station entry for: %pM\n", sta->addr); | ||
269 | return ret; | ||
270 | } | ||
271 | |||
272 | if (sta) | ||
273 | ath_print(common, ATH_DBG_CONFIG, | ||
274 | "Added a station entry for: %pM (idx: %d)\n", | ||
275 | sta->addr, tsta.sta_index); | ||
276 | |||
277 | priv->nstations++; | ||
278 | return 0; | ||
279 | } | ||
280 | |||
281 | static int ath9k_htc_remove_station(struct ath9k_htc_priv *priv, | ||
282 | struct ieee80211_vif *vif, | ||
283 | struct ieee80211_sta *sta) | ||
284 | { | ||
285 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
286 | struct ath9k_htc_sta *ista; | ||
287 | int ret; | ||
288 | u8 cmd_rsp, sta_idx; | ||
289 | |||
290 | if (sta) { | ||
291 | ista = (struct ath9k_htc_sta *) sta->drv_priv; | ||
292 | sta_idx = ista->index; | ||
293 | } else { | ||
294 | sta_idx = 0; | ||
295 | } | ||
296 | |||
297 | WMI_CMD_BUF(WMI_NODE_REMOVE_CMDID, &sta_idx); | ||
298 | if (ret) { | ||
299 | if (sta) | ||
300 | ath_print(common, ATH_DBG_FATAL, | ||
301 | "Unable to remove station entry for: %pM\n", | ||
302 | sta->addr); | ||
303 | return ret; | ||
304 | } | ||
305 | |||
306 | if (sta) | ||
307 | ath_print(common, ATH_DBG_CONFIG, | ||
308 | "Removed a station entry for: %pM (idx: %d)\n", | ||
309 | sta->addr, sta_idx); | ||
310 | |||
311 | priv->nstations--; | ||
312 | return 0; | ||
313 | } | ||
314 | |||
315 | static int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv) | ||
316 | { | ||
317 | struct ath9k_htc_cap_target tcap; | ||
318 | int ret; | ||
319 | u8 cmd_rsp; | ||
320 | |||
321 | memset(&tcap, 0, sizeof(struct ath9k_htc_cap_target)); | ||
322 | |||
323 | /* FIXME: Values are hardcoded */ | ||
324 | tcap.flags = 0x240c40; | ||
325 | tcap.flags_ext = 0x80601000; | ||
326 | tcap.ampdu_limit = 0xffff0000; | ||
327 | tcap.ampdu_subframes = 20; | ||
328 | tcap.tx_chainmask_legacy = 1; | ||
329 | tcap.protmode = 1; | ||
330 | tcap.tx_chainmask = 1; | ||
331 | |||
332 | WMI_CMD_BUF(WMI_TARGET_IC_UPDATE_CMDID, &tcap); | ||
333 | |||
334 | return ret; | ||
335 | } | ||
336 | |||
337 | static int ath9k_htc_init_rate(struct ath9k_htc_priv *priv, | ||
338 | struct ieee80211_vif *vif, | ||
339 | struct ieee80211_sta *sta) | ||
340 | { | ||
341 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
342 | struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv; | ||
343 | struct ieee80211_supported_band *sband; | ||
344 | struct ath9k_htc_target_rate trate; | ||
345 | u32 caps = 0; | ||
346 | u8 cmd_rsp; | ||
347 | int i, j, ret; | ||
348 | |||
349 | memset(&trate, 0, sizeof(trate)); | ||
350 | |||
351 | /* Only 2GHz is supported */ | ||
352 | sband = priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ]; | ||
353 | |||
354 | for (i = 0, j = 0; i < sband->n_bitrates; i++) { | ||
355 | if (sta->supp_rates[sband->band] & BIT(i)) { | ||
356 | priv->tgt_rate.rates.legacy_rates.rs_rates[j] | ||
357 | = (sband->bitrates[i].bitrate * 2) / 10; | ||
358 | j++; | ||
359 | } | ||
360 | } | ||
361 | priv->tgt_rate.rates.legacy_rates.rs_nrates = j; | ||
362 | |||
363 | if (sta->ht_cap.ht_supported) { | ||
364 | for (i = 0, j = 0; i < 77; i++) { | ||
365 | if (sta->ht_cap.mcs.rx_mask[i/8] & (1<<(i%8))) | ||
366 | priv->tgt_rate.rates.ht_rates.rs_rates[j++] = i; | ||
367 | if (j == ATH_HTC_RATE_MAX) | ||
368 | break; | ||
369 | } | ||
370 | priv->tgt_rate.rates.ht_rates.rs_nrates = j; | ||
371 | |||
372 | caps = WLAN_RC_HT_FLAG; | ||
373 | if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) | ||
374 | caps |= WLAN_RC_40_FLAG; | ||
375 | if (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40) | ||
376 | caps |= WLAN_RC_SGI_FLAG; | ||
377 | |||
378 | } | ||
379 | |||
380 | priv->tgt_rate.sta_index = ista->index; | ||
381 | priv->tgt_rate.isnew = 1; | ||
382 | trate = priv->tgt_rate; | ||
383 | priv->tgt_rate.capflags = cpu_to_be32(caps); | ||
384 | trate.capflags = cpu_to_be32(caps); | ||
385 | |||
386 | WMI_CMD_BUF(WMI_RC_RATE_UPDATE_CMDID, &trate); | ||
387 | if (ret) { | ||
388 | ath_print(common, ATH_DBG_FATAL, | ||
389 | "Unable to initialize Rate information on target\n"); | ||
390 | return ret; | ||
391 | } | ||
392 | |||
393 | ath_print(common, ATH_DBG_CONFIG, | ||
394 | "Updated target STA: %pM (caps: 0x%x)\n", sta->addr, caps); | ||
395 | return 0; | ||
396 | } | ||
397 | |||
398 | static bool check_rc_update(struct ieee80211_hw *hw, bool *cw40) | ||
399 | { | ||
400 | struct ath9k_htc_priv *priv = hw->priv; | ||
401 | struct ieee80211_conf *conf = &hw->conf; | ||
402 | |||
403 | if (!conf_is_ht(conf)) | ||
404 | return false; | ||
405 | |||
406 | if (!(priv->op_flags & OP_ASSOCIATED) || | ||
407 | (priv->op_flags & OP_SCANNING)) | ||
408 | return false; | ||
409 | |||
410 | if (conf_is_ht40(conf)) { | ||
411 | if (priv->ah->curchan->chanmode & | ||
412 | (CHANNEL_HT40PLUS | CHANNEL_HT40MINUS)) { | ||
413 | return false; | ||
414 | } else { | ||
415 | *cw40 = true; | ||
416 | return true; | ||
417 | } | ||
418 | } else { /* ht20 */ | ||
419 | if (priv->ah->curchan->chanmode & CHANNEL_HT20) | ||
420 | return false; | ||
421 | else | ||
422 | return true; | ||
423 | } | ||
424 | } | ||
425 | |||
426 | static void ath9k_htc_rc_update(struct ath9k_htc_priv *priv, bool is_cw40) | ||
427 | { | ||
428 | struct ath9k_htc_target_rate trate; | ||
429 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
430 | int ret; | ||
431 | u32 caps = be32_to_cpu(priv->tgt_rate.capflags); | ||
432 | u8 cmd_rsp; | ||
433 | |||
434 | memset(&trate, 0, sizeof(trate)); | ||
435 | |||
436 | trate = priv->tgt_rate; | ||
437 | |||
438 | if (is_cw40) | ||
439 | caps |= WLAN_RC_40_FLAG; | ||
440 | else | ||
441 | caps &= ~WLAN_RC_40_FLAG; | ||
442 | |||
443 | priv->tgt_rate.capflags = cpu_to_be32(caps); | ||
444 | trate.capflags = cpu_to_be32(caps); | ||
445 | |||
446 | WMI_CMD_BUF(WMI_RC_RATE_UPDATE_CMDID, &trate); | ||
447 | if (ret) { | ||
448 | ath_print(common, ATH_DBG_FATAL, | ||
449 | "Unable to update Rate information on target\n"); | ||
450 | return; | ||
451 | } | ||
452 | |||
453 | ath_print(common, ATH_DBG_CONFIG, "Rate control updated with " | ||
454 | "caps:0x%x on target\n", priv->tgt_rate.capflags); | ||
455 | } | ||
456 | |||
457 | static int ath9k_htc_aggr_oper(struct ath9k_htc_priv *priv, | ||
458 | struct ieee80211_vif *vif, | ||
459 | u8 *sta_addr, u8 tid, bool oper) | ||
460 | { | ||
461 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
462 | struct ath9k_htc_target_aggr aggr; | ||
463 | struct ieee80211_sta *sta = NULL; | ||
464 | struct ath9k_htc_sta *ista; | ||
465 | int ret = 0; | ||
466 | u8 cmd_rsp; | ||
467 | |||
468 | if (tid >= ATH9K_HTC_MAX_TID) | ||
469 | return -EINVAL; | ||
470 | |||
471 | memset(&aggr, 0, sizeof(struct ath9k_htc_target_aggr)); | ||
472 | |||
473 | rcu_read_lock(); | ||
474 | |||
475 | /* Check if we are able to retrieve the station */ | ||
476 | sta = ieee80211_find_sta(vif, sta_addr); | ||
477 | if (!sta) { | ||
478 | rcu_read_unlock(); | ||
479 | return -EINVAL; | ||
480 | } | ||
481 | |||
482 | ista = (struct ath9k_htc_sta *) sta->drv_priv; | ||
483 | |||
484 | if (oper) | ||
485 | ista->tid_state[tid] = AGGR_START; | ||
486 | else | ||
487 | ista->tid_state[tid] = AGGR_STOP; | ||
488 | |||
489 | aggr.sta_index = ista->index; | ||
490 | |||
491 | rcu_read_unlock(); | ||
492 | |||
493 | aggr.tidno = tid; | ||
494 | aggr.aggr_enable = oper; | ||
495 | |||
496 | WMI_CMD_BUF(WMI_TX_AGGR_ENABLE_CMDID, &aggr); | ||
497 | if (ret) | ||
498 | ath_print(common, ATH_DBG_CONFIG, | ||
499 | "Unable to %s TX aggregation for (%pM, %d)\n", | ||
500 | (oper) ? "start" : "stop", sta->addr, tid); | ||
501 | else | ||
502 | ath_print(common, ATH_DBG_CONFIG, | ||
503 | "%s aggregation for (%pM, %d)\n", | ||
504 | (oper) ? "Starting" : "Stopping", sta->addr, tid); | ||
505 | |||
506 | return ret; | ||
507 | } | ||
508 | |||
509 | void ath9k_htc_aggr_work(struct work_struct *work) | ||
510 | { | ||
511 | int ret = 0; | ||
512 | struct ath9k_htc_priv *priv = | ||
513 | container_of(work, struct ath9k_htc_priv, | ||
514 | ath9k_aggr_work.work); | ||
515 | struct ath9k_htc_aggr_work *wk = &priv->aggr_work; | ||
516 | |||
517 | mutex_lock(&wk->mutex); | ||
518 | |||
519 | switch (wk->action) { | ||
520 | case IEEE80211_AMPDU_TX_START: | ||
521 | ret = ath9k_htc_aggr_oper(priv, wk->vif, wk->sta_addr, | ||
522 | wk->tid, true); | ||
523 | if (!ret) | ||
524 | ieee80211_start_tx_ba_cb(wk->vif, wk->sta_addr, | ||
525 | wk->tid); | ||
526 | break; | ||
527 | case IEEE80211_AMPDU_TX_STOP: | ||
528 | ath9k_htc_aggr_oper(priv, wk->vif, wk->sta_addr, | ||
529 | wk->tid, false); | ||
530 | ieee80211_stop_tx_ba_cb(wk->vif, wk->sta_addr, wk->tid); | ||
531 | break; | ||
532 | default: | ||
533 | ath_print(ath9k_hw_common(priv->ah), ATH_DBG_FATAL, | ||
534 | "Unknown AMPDU action\n"); | ||
535 | } | ||
536 | |||
537 | mutex_unlock(&wk->mutex); | ||
538 | } | ||
539 | |||
540 | /*********/ | ||
541 | /* DEBUG */ | ||
542 | /*********/ | ||
543 | |||
544 | #ifdef CONFIG_ATH9K_HTC_DEBUGFS | ||
545 | |||
546 | static int ath9k_debugfs_open(struct inode *inode, struct file *file) | ||
547 | { | ||
548 | file->private_data = inode->i_private; | ||
549 | return 0; | ||
550 | } | ||
551 | |||
552 | static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, | ||
553 | size_t count, loff_t *ppos) | ||
554 | { | ||
555 | struct ath9k_htc_priv *priv = | ||
556 | (struct ath9k_htc_priv *) file->private_data; | ||
557 | struct ath9k_htc_target_stats cmd_rsp; | ||
558 | char buf[512]; | ||
559 | unsigned int len = 0; | ||
560 | int ret = 0; | ||
561 | |||
562 | memset(&cmd_rsp, 0, sizeof(cmd_rsp)); | ||
563 | |||
564 | WMI_CMD(WMI_TGT_STATS_CMDID); | ||
565 | if (ret) | ||
566 | return -EINVAL; | ||
567 | |||
568 | |||
569 | len += snprintf(buf + len, sizeof(buf) - len, | ||
570 | "%19s : %10u\n", "TX Short Retries", | ||
571 | be32_to_cpu(cmd_rsp.tx_shortretry)); | ||
572 | len += snprintf(buf + len, sizeof(buf) - len, | ||
573 | "%19s : %10u\n", "TX Long Retries", | ||
574 | be32_to_cpu(cmd_rsp.tx_longretry)); | ||
575 | len += snprintf(buf + len, sizeof(buf) - len, | ||
576 | "%19s : %10u\n", "TX Xretries", | ||
577 | be32_to_cpu(cmd_rsp.tx_xretries)); | ||
578 | len += snprintf(buf + len, sizeof(buf) - len, | ||
579 | "%19s : %10u\n", "TX Unaggr. Xretries", | ||
580 | be32_to_cpu(cmd_rsp.ht_txunaggr_xretry)); | ||
581 | len += snprintf(buf + len, sizeof(buf) - len, | ||
582 | "%19s : %10u\n", "TX Xretries (HT)", | ||
583 | be32_to_cpu(cmd_rsp.ht_tx_xretries)); | ||
584 | len += snprintf(buf + len, sizeof(buf) - len, | ||
585 | "%19s : %10u\n", "TX Rate", priv->debug.txrate); | ||
586 | |||
587 | return simple_read_from_buffer(user_buf, count, ppos, buf, len); | ||
588 | } | ||
589 | |||
590 | static const struct file_operations fops_tgt_stats = { | ||
591 | .read = read_file_tgt_stats, | ||
592 | .open = ath9k_debugfs_open, | ||
593 | .owner = THIS_MODULE | ||
594 | }; | ||
595 | |||
596 | static ssize_t read_file_xmit(struct file *file, char __user *user_buf, | ||
597 | size_t count, loff_t *ppos) | ||
598 | { | ||
599 | struct ath9k_htc_priv *priv = | ||
600 | (struct ath9k_htc_priv *) file->private_data; | ||
601 | char buf[512]; | ||
602 | unsigned int len = 0; | ||
603 | |||
604 | len += snprintf(buf + len, sizeof(buf) - len, | ||
605 | "%20s : %10u\n", "Buffers queued", | ||
606 | priv->debug.tx_stats.buf_queued); | ||
607 | len += snprintf(buf + len, sizeof(buf) - len, | ||
608 | "%20s : %10u\n", "Buffers completed", | ||
609 | priv->debug.tx_stats.buf_completed); | ||
610 | len += snprintf(buf + len, sizeof(buf) - len, | ||
611 | "%20s : %10u\n", "SKBs queued", | ||
612 | priv->debug.tx_stats.skb_queued); | ||
613 | len += snprintf(buf + len, sizeof(buf) - len, | ||
614 | "%20s : %10u\n", "SKBs completed", | ||
615 | priv->debug.tx_stats.skb_completed); | ||
616 | len += snprintf(buf + len, sizeof(buf) - len, | ||
617 | "%20s : %10u\n", "SKBs dropped", | ||
618 | priv->debug.tx_stats.skb_dropped); | ||
619 | |||
620 | return simple_read_from_buffer(user_buf, count, ppos, buf, len); | ||
621 | } | ||
622 | |||
623 | static const struct file_operations fops_xmit = { | ||
624 | .read = read_file_xmit, | ||
625 | .open = ath9k_debugfs_open, | ||
626 | .owner = THIS_MODULE | ||
627 | }; | ||
628 | |||
629 | static ssize_t read_file_recv(struct file *file, char __user *user_buf, | ||
630 | size_t count, loff_t *ppos) | ||
631 | { | ||
632 | struct ath9k_htc_priv *priv = | ||
633 | (struct ath9k_htc_priv *) file->private_data; | ||
634 | char buf[512]; | ||
635 | unsigned int len = 0; | ||
636 | |||
637 | len += snprintf(buf + len, sizeof(buf) - len, | ||
638 | "%20s : %10u\n", "SKBs allocated", | ||
639 | priv->debug.rx_stats.skb_allocated); | ||
640 | len += snprintf(buf + len, sizeof(buf) - len, | ||
641 | "%20s : %10u\n", "SKBs completed", | ||
642 | priv->debug.rx_stats.skb_completed); | ||
643 | len += snprintf(buf + len, sizeof(buf) - len, | ||
644 | "%20s : %10u\n", "SKBs Dropped", | ||
645 | priv->debug.rx_stats.skb_dropped); | ||
646 | |||
647 | return simple_read_from_buffer(user_buf, count, ppos, buf, len); | ||
648 | } | ||
649 | |||
650 | static const struct file_operations fops_recv = { | ||
651 | .read = read_file_recv, | ||
652 | .open = ath9k_debugfs_open, | ||
653 | .owner = THIS_MODULE | ||
654 | }; | ||
655 | |||
656 | int ath9k_htc_init_debug(struct ath_hw *ah) | ||
657 | { | ||
658 | struct ath_common *common = ath9k_hw_common(ah); | ||
659 | struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; | ||
660 | |||
661 | if (!ath9k_debugfs_root) | ||
662 | return -ENOENT; | ||
663 | |||
664 | priv->debug.debugfs_phy = debugfs_create_dir(wiphy_name(priv->hw->wiphy), | ||
665 | ath9k_debugfs_root); | ||
666 | if (!priv->debug.debugfs_phy) | ||
667 | goto err; | ||
668 | |||
669 | priv->debug.debugfs_tgt_stats = debugfs_create_file("tgt_stats", S_IRUSR, | ||
670 | priv->debug.debugfs_phy, | ||
671 | priv, &fops_tgt_stats); | ||
672 | if (!priv->debug.debugfs_tgt_stats) | ||
673 | goto err; | ||
674 | |||
675 | |||
676 | priv->debug.debugfs_xmit = debugfs_create_file("xmit", S_IRUSR, | ||
677 | priv->debug.debugfs_phy, | ||
678 | priv, &fops_xmit); | ||
679 | if (!priv->debug.debugfs_xmit) | ||
680 | goto err; | ||
681 | |||
682 | priv->debug.debugfs_recv = debugfs_create_file("recv", S_IRUSR, | ||
683 | priv->debug.debugfs_phy, | ||
684 | priv, &fops_recv); | ||
685 | if (!priv->debug.debugfs_recv) | ||
686 | goto err; | ||
687 | |||
688 | return 0; | ||
689 | |||
690 | err: | ||
691 | ath9k_htc_exit_debug(ah); | ||
692 | return -ENOMEM; | ||
693 | } | ||
694 | |||
695 | void ath9k_htc_exit_debug(struct ath_hw *ah) | ||
696 | { | ||
697 | struct ath_common *common = ath9k_hw_common(ah); | ||
698 | struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; | ||
699 | |||
700 | debugfs_remove(priv->debug.debugfs_recv); | ||
701 | debugfs_remove(priv->debug.debugfs_xmit); | ||
702 | debugfs_remove(priv->debug.debugfs_tgt_stats); | ||
703 | debugfs_remove(priv->debug.debugfs_phy); | ||
704 | } | ||
705 | |||
706 | int ath9k_htc_debug_create_root(void) | ||
707 | { | ||
708 | ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL); | ||
709 | if (!ath9k_debugfs_root) | ||
710 | return -ENOENT; | ||
711 | |||
712 | return 0; | ||
713 | } | ||
714 | |||
715 | void ath9k_htc_debug_remove_root(void) | ||
716 | { | ||
717 | debugfs_remove(ath9k_debugfs_root); | ||
718 | ath9k_debugfs_root = NULL; | ||
719 | } | ||
720 | |||
721 | #endif /* CONFIG_ATH9K_HTC_DEBUGFS */ | ||
722 | |||
723 | /*******/ | ||
724 | /* ANI */ | ||
725 | /*******/ | ||
726 | |||
727 | static void ath_start_ani(struct ath9k_htc_priv *priv) | ||
728 | { | ||
729 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
730 | unsigned long timestamp = jiffies_to_msecs(jiffies); | ||
731 | |||
732 | common->ani.longcal_timer = timestamp; | ||
733 | common->ani.shortcal_timer = timestamp; | ||
734 | common->ani.checkani_timer = timestamp; | ||
735 | |||
736 | ieee80211_queue_delayed_work(common->hw, &priv->ath9k_ani_work, | ||
737 | msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); | ||
738 | } | ||
739 | |||
740 | void ath9k_ani_work(struct work_struct *work) | ||
741 | { | ||
742 | struct ath9k_htc_priv *priv = | ||
743 | container_of(work, struct ath9k_htc_priv, | ||
744 | ath9k_ani_work.work); | ||
745 | struct ath_hw *ah = priv->ah; | ||
746 | struct ath_common *common = ath9k_hw_common(ah); | ||
747 | bool longcal = false; | ||
748 | bool shortcal = false; | ||
749 | bool aniflag = false; | ||
750 | unsigned int timestamp = jiffies_to_msecs(jiffies); | ||
751 | u32 cal_interval, short_cal_interval; | ||
752 | |||
753 | short_cal_interval = ATH_STA_SHORT_CALINTERVAL; | ||
754 | |||
755 | /* Only calibrate if awake */ | ||
756 | if (ah->power_mode != ATH9K_PM_AWAKE) | ||
757 | goto set_timer; | ||
758 | |||
759 | /* Long calibration runs independently of short calibration. */ | ||
760 | if ((timestamp - common->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) { | ||
761 | longcal = true; | ||
762 | ath_print(common, ATH_DBG_ANI, "longcal @%lu\n", jiffies); | ||
763 | common->ani.longcal_timer = timestamp; | ||
764 | } | ||
765 | |||
766 | /* Short calibration applies only while caldone is false */ | ||
767 | if (!common->ani.caldone) { | ||
768 | if ((timestamp - common->ani.shortcal_timer) >= | ||
769 | short_cal_interval) { | ||
770 | shortcal = true; | ||
771 | ath_print(common, ATH_DBG_ANI, | ||
772 | "shortcal @%lu\n", jiffies); | ||
773 | common->ani.shortcal_timer = timestamp; | ||
774 | common->ani.resetcal_timer = timestamp; | ||
775 | } | ||
776 | } else { | ||
777 | if ((timestamp - common->ani.resetcal_timer) >= | ||
778 | ATH_RESTART_CALINTERVAL) { | ||
779 | common->ani.caldone = ath9k_hw_reset_calvalid(ah); | ||
780 | if (common->ani.caldone) | ||
781 | common->ani.resetcal_timer = timestamp; | ||
782 | } | ||
783 | } | ||
784 | |||
785 | /* Verify whether we must check ANI */ | ||
786 | if ((timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) { | ||
787 | aniflag = true; | ||
788 | common->ani.checkani_timer = timestamp; | ||
789 | } | ||
790 | |||
791 | /* Skip all processing if there's nothing to do. */ | ||
792 | if (longcal || shortcal || aniflag) { | ||
793 | |||
794 | ath9k_htc_ps_wakeup(priv); | ||
795 | |||
796 | /* Call ANI routine if necessary */ | ||
797 | if (aniflag) | ||
798 | ath9k_hw_ani_monitor(ah, ah->curchan); | ||
799 | |||
800 | /* Perform calibration if necessary */ | ||
801 | if (longcal || shortcal) { | ||
802 | common->ani.caldone = | ||
803 | ath9k_hw_calibrate(ah, ah->curchan, | ||
804 | common->rx_chainmask, | ||
805 | longcal); | ||
806 | |||
807 | if (longcal) | ||
808 | common->ani.noise_floor = | ||
809 | ath9k_hw_getchan_noise(ah, ah->curchan); | ||
810 | |||
811 | ath_print(common, ATH_DBG_ANI, | ||
812 | " calibrate chan %u/%x nf: %d\n", | ||
813 | ah->curchan->channel, | ||
814 | ah->curchan->channelFlags, | ||
815 | common->ani.noise_floor); | ||
816 | } | ||
817 | |||
818 | ath9k_htc_ps_restore(priv); | ||
819 | } | ||
820 | |||
821 | set_timer: | ||
822 | /* | ||
823 | * Set timer interval based on previous results. | ||
824 | * The interval must be the shortest necessary to satisfy ANI, | ||
825 | * short calibration and long calibration. | ||
826 | */ | ||
827 | cal_interval = ATH_LONG_CALINTERVAL; | ||
828 | if (priv->ah->config.enable_ani) | ||
829 | cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL); | ||
830 | if (!common->ani.caldone) | ||
831 | cal_interval = min(cal_interval, (u32)short_cal_interval); | ||
832 | |||
833 | ieee80211_queue_delayed_work(common->hw, &priv->ath9k_ani_work, | ||
834 | msecs_to_jiffies(cal_interval)); | ||
835 | } | ||
836 | |||
837 | /*******/ | ||
838 | /* LED */ | ||
839 | /*******/ | ||
840 | |||
841 | static void ath9k_led_blink_work(struct work_struct *work) | ||
842 | { | ||
843 | struct ath9k_htc_priv *priv = container_of(work, struct ath9k_htc_priv, | ||
844 | ath9k_led_blink_work.work); | ||
845 | |||
846 | if (!(priv->op_flags & OP_LED_ASSOCIATED)) | ||
847 | return; | ||
848 | |||
849 | if ((priv->led_on_duration == ATH_LED_ON_DURATION_IDLE) || | ||
850 | (priv->led_off_duration == ATH_LED_OFF_DURATION_IDLE)) | ||
851 | ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0); | ||
852 | else | ||
853 | ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, | ||
854 | (priv->op_flags & OP_LED_ON) ? 1 : 0); | ||
855 | |||
856 | ieee80211_queue_delayed_work(priv->hw, | ||
857 | &priv->ath9k_led_blink_work, | ||
858 | (priv->op_flags & OP_LED_ON) ? | ||
859 | msecs_to_jiffies(priv->led_off_duration) : | ||
860 | msecs_to_jiffies(priv->led_on_duration)); | ||
861 | |||
862 | priv->led_on_duration = priv->led_on_cnt ? | ||
863 | max((ATH_LED_ON_DURATION_IDLE - priv->led_on_cnt), 25) : | ||
864 | ATH_LED_ON_DURATION_IDLE; | ||
865 | priv->led_off_duration = priv->led_off_cnt ? | ||
866 | max((ATH_LED_OFF_DURATION_IDLE - priv->led_off_cnt), 10) : | ||
867 | ATH_LED_OFF_DURATION_IDLE; | ||
868 | priv->led_on_cnt = priv->led_off_cnt = 0; | ||
869 | |||
870 | if (priv->op_flags & OP_LED_ON) | ||
871 | priv->op_flags &= ~OP_LED_ON; | ||
872 | else | ||
873 | priv->op_flags |= OP_LED_ON; | ||
874 | } | ||
875 | |||
876 | static void ath9k_led_brightness_work(struct work_struct *work) | ||
877 | { | ||
878 | struct ath_led *led = container_of(work, struct ath_led, | ||
879 | brightness_work.work); | ||
880 | struct ath9k_htc_priv *priv = led->priv; | ||
881 | |||
882 | switch (led->brightness) { | ||
883 | case LED_OFF: | ||
884 | if (led->led_type == ATH_LED_ASSOC || | ||
885 | led->led_type == ATH_LED_RADIO) { | ||
886 | ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, | ||
887 | (led->led_type == ATH_LED_RADIO)); | ||
888 | priv->op_flags &= ~OP_LED_ASSOCIATED; | ||
889 | if (led->led_type == ATH_LED_RADIO) | ||
890 | priv->op_flags &= ~OP_LED_ON; | ||
891 | } else { | ||
892 | priv->led_off_cnt++; | ||
893 | } | ||
894 | break; | ||
895 | case LED_FULL: | ||
896 | if (led->led_type == ATH_LED_ASSOC) { | ||
897 | priv->op_flags |= OP_LED_ASSOCIATED; | ||
898 | ieee80211_queue_delayed_work(priv->hw, | ||
899 | &priv->ath9k_led_blink_work, 0); | ||
900 | } else if (led->led_type == ATH_LED_RADIO) { | ||
901 | ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0); | ||
902 | priv->op_flags |= OP_LED_ON; | ||
903 | } else { | ||
904 | priv->led_on_cnt++; | ||
905 | } | ||
906 | break; | ||
907 | default: | ||
908 | break; | ||
909 | } | ||
910 | } | ||
911 | |||
912 | static void ath9k_led_brightness(struct led_classdev *led_cdev, | ||
913 | enum led_brightness brightness) | ||
914 | { | ||
915 | struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev); | ||
916 | struct ath9k_htc_priv *priv = led->priv; | ||
917 | |||
918 | led->brightness = brightness; | ||
919 | if (!(priv->op_flags & OP_LED_DEINIT)) | ||
920 | ieee80211_queue_delayed_work(priv->hw, | ||
921 | &led->brightness_work, 0); | ||
922 | } | ||
923 | |||
924 | static void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv) | ||
925 | { | ||
926 | cancel_delayed_work_sync(&priv->radio_led.brightness_work); | ||
927 | cancel_delayed_work_sync(&priv->assoc_led.brightness_work); | ||
928 | cancel_delayed_work_sync(&priv->tx_led.brightness_work); | ||
929 | cancel_delayed_work_sync(&priv->rx_led.brightness_work); | ||
930 | } | ||
931 | |||
932 | static int ath9k_register_led(struct ath9k_htc_priv *priv, struct ath_led *led, | ||
933 | char *trigger) | ||
934 | { | ||
935 | int ret; | ||
936 | |||
937 | led->priv = priv; | ||
938 | led->led_cdev.name = led->name; | ||
939 | led->led_cdev.default_trigger = trigger; | ||
940 | led->led_cdev.brightness_set = ath9k_led_brightness; | ||
941 | |||
942 | ret = led_classdev_register(wiphy_dev(priv->hw->wiphy), &led->led_cdev); | ||
943 | if (ret) | ||
944 | ath_print(ath9k_hw_common(priv->ah), ATH_DBG_FATAL, | ||
945 | "Failed to register led:%s", led->name); | ||
946 | else | ||
947 | led->registered = 1; | ||
948 | |||
949 | INIT_DELAYED_WORK(&led->brightness_work, ath9k_led_brightness_work); | ||
950 | |||
951 | return ret; | ||
952 | } | ||
953 | |||
954 | static void ath9k_unregister_led(struct ath_led *led) | ||
955 | { | ||
956 | if (led->registered) { | ||
957 | led_classdev_unregister(&led->led_cdev); | ||
958 | led->registered = 0; | ||
959 | } | ||
960 | } | ||
961 | |||
962 | void ath9k_deinit_leds(struct ath9k_htc_priv *priv) | ||
963 | { | ||
964 | priv->op_flags |= OP_LED_DEINIT; | ||
965 | ath9k_unregister_led(&priv->assoc_led); | ||
966 | priv->op_flags &= ~OP_LED_ASSOCIATED; | ||
967 | ath9k_unregister_led(&priv->tx_led); | ||
968 | ath9k_unregister_led(&priv->rx_led); | ||
969 | ath9k_unregister_led(&priv->radio_led); | ||
970 | } | ||
971 | |||
972 | void ath9k_init_leds(struct ath9k_htc_priv *priv) | ||
973 | { | ||
974 | char *trigger; | ||
975 | int ret; | ||
976 | |||
977 | if (AR_SREV_9287(priv->ah)) | ||
978 | priv->ah->led_pin = ATH_LED_PIN_9287; | ||
979 | else if (AR_SREV_9271(priv->ah)) | ||
980 | priv->ah->led_pin = ATH_LED_PIN_9271; | ||
981 | else | ||
982 | priv->ah->led_pin = ATH_LED_PIN_DEF; | ||
983 | |||
984 | /* Configure gpio 1 for output */ | ||
985 | ath9k_hw_cfg_output(priv->ah, priv->ah->led_pin, | ||
986 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | ||
987 | /* LED off, active low */ | ||
988 | ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 1); | ||
989 | |||
990 | INIT_DELAYED_WORK(&priv->ath9k_led_blink_work, ath9k_led_blink_work); | ||
991 | |||
992 | trigger = ieee80211_get_radio_led_name(priv->hw); | ||
993 | snprintf(priv->radio_led.name, sizeof(priv->radio_led.name), | ||
994 | "ath9k-%s::radio", wiphy_name(priv->hw->wiphy)); | ||
995 | ret = ath9k_register_led(priv, &priv->radio_led, trigger); | ||
996 | priv->radio_led.led_type = ATH_LED_RADIO; | ||
997 | if (ret) | ||
998 | goto fail; | ||
999 | |||
1000 | trigger = ieee80211_get_assoc_led_name(priv->hw); | ||
1001 | snprintf(priv->assoc_led.name, sizeof(priv->assoc_led.name), | ||
1002 | "ath9k-%s::assoc", wiphy_name(priv->hw->wiphy)); | ||
1003 | ret = ath9k_register_led(priv, &priv->assoc_led, trigger); | ||
1004 | priv->assoc_led.led_type = ATH_LED_ASSOC; | ||
1005 | if (ret) | ||
1006 | goto fail; | ||
1007 | |||
1008 | trigger = ieee80211_get_tx_led_name(priv->hw); | ||
1009 | snprintf(priv->tx_led.name, sizeof(priv->tx_led.name), | ||
1010 | "ath9k-%s::tx", wiphy_name(priv->hw->wiphy)); | ||
1011 | ret = ath9k_register_led(priv, &priv->tx_led, trigger); | ||
1012 | priv->tx_led.led_type = ATH_LED_TX; | ||
1013 | if (ret) | ||
1014 | goto fail; | ||
1015 | |||
1016 | trigger = ieee80211_get_rx_led_name(priv->hw); | ||
1017 | snprintf(priv->rx_led.name, sizeof(priv->rx_led.name), | ||
1018 | "ath9k-%s::rx", wiphy_name(priv->hw->wiphy)); | ||
1019 | ret = ath9k_register_led(priv, &priv->rx_led, trigger); | ||
1020 | priv->rx_led.led_type = ATH_LED_RX; | ||
1021 | if (ret) | ||
1022 | goto fail; | ||
1023 | |||
1024 | priv->op_flags &= ~OP_LED_DEINIT; | ||
1025 | |||
1026 | return; | ||
1027 | |||
1028 | fail: | ||
1029 | cancel_delayed_work_sync(&priv->ath9k_led_blink_work); | ||
1030 | ath9k_deinit_leds(priv); | ||
1031 | } | ||
1032 | |||
1033 | /*******************/ | ||
1034 | /* Rfkill */ | ||
1035 | /*******************/ | ||
1036 | |||
1037 | static bool ath_is_rfkill_set(struct ath9k_htc_priv *priv) | ||
1038 | { | ||
1039 | return ath9k_hw_gpio_get(priv->ah, priv->ah->rfkill_gpio) == | ||
1040 | priv->ah->rfkill_polarity; | ||
1041 | } | ||
1042 | |||
1043 | static void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw) | ||
1044 | { | ||
1045 | struct ath9k_htc_priv *priv = hw->priv; | ||
1046 | bool blocked = !!ath_is_rfkill_set(priv); | ||
1047 | |||
1048 | wiphy_rfkill_set_hw_state(hw->wiphy, blocked); | ||
1049 | } | ||
1050 | |||
1051 | void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv) | ||
1052 | { | ||
1053 | if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) | ||
1054 | wiphy_rfkill_start_polling(priv->hw->wiphy); | ||
1055 | } | ||
1056 | |||
1057 | /**********************/ | ||
1058 | /* mac80211 Callbacks */ | ||
1059 | /**********************/ | ||
1060 | |||
1061 | static int ath9k_htc_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | ||
1062 | { | ||
1063 | struct ieee80211_hdr *hdr; | ||
1064 | struct ath9k_htc_priv *priv = hw->priv; | ||
1065 | int padpos, padsize, ret; | ||
1066 | |||
1067 | hdr = (struct ieee80211_hdr *) skb->data; | ||
1068 | |||
1069 | /* Add the padding after the header if this is not already done */ | ||
1070 | padpos = ath9k_cmn_padpos(hdr->frame_control); | ||
1071 | padsize = padpos & 3; | ||
1072 | if (padsize && skb->len > padpos) { | ||
1073 | if (skb_headroom(skb) < padsize) | ||
1074 | return -1; | ||
1075 | skb_push(skb, padsize); | ||
1076 | memmove(skb->data, skb->data + padsize, padpos); | ||
1077 | } | ||
1078 | |||
1079 | ret = ath9k_htc_tx_start(priv, skb); | ||
1080 | if (ret != 0) { | ||
1081 | if (ret == -ENOMEM) { | ||
1082 | ath_print(ath9k_hw_common(priv->ah), ATH_DBG_XMIT, | ||
1083 | "Stopping TX queues\n"); | ||
1084 | ieee80211_stop_queues(hw); | ||
1085 | spin_lock_bh(&priv->tx_lock); | ||
1086 | priv->tx_queues_stop = true; | ||
1087 | spin_unlock_bh(&priv->tx_lock); | ||
1088 | } else { | ||
1089 | ath_print(ath9k_hw_common(priv->ah), ATH_DBG_XMIT, | ||
1090 | "Tx failed"); | ||
1091 | } | ||
1092 | goto fail_tx; | ||
1093 | } | ||
1094 | |||
1095 | return 0; | ||
1096 | |||
1097 | fail_tx: | ||
1098 | dev_kfree_skb_any(skb); | ||
1099 | return 0; | ||
1100 | } | ||
1101 | |||
1102 | static int ath9k_htc_radio_enable(struct ieee80211_hw *hw, bool led) | ||
1103 | { | ||
1104 | struct ath9k_htc_priv *priv = hw->priv; | ||
1105 | struct ath_hw *ah = priv->ah; | ||
1106 | struct ath_common *common = ath9k_hw_common(ah); | ||
1107 | struct ieee80211_channel *curchan = hw->conf.channel; | ||
1108 | struct ath9k_channel *init_channel; | ||
1109 | int ret = 0; | ||
1110 | enum htc_phymode mode; | ||
1111 | __be16 htc_mode; | ||
1112 | u8 cmd_rsp; | ||
1113 | |||
1114 | ath_print(common, ATH_DBG_CONFIG, | ||
1115 | "Starting driver with initial channel: %d MHz\n", | ||
1116 | curchan->center_freq); | ||
1117 | |||
1118 | /* setup initial channel */ | ||
1119 | init_channel = ath9k_cmn_get_curchannel(hw, ah); | ||
1120 | |||
1121 | /* Reset SERDES registers */ | ||
1122 | ath9k_hw_configpcipowersave(ah, 0, 0); | ||
1123 | |||
1124 | ath9k_hw_htc_resetinit(ah); | ||
1125 | ret = ath9k_hw_reset(ah, init_channel, false); | ||
1126 | if (ret) { | ||
1127 | ath_print(common, ATH_DBG_FATAL, | ||
1128 | "Unable to reset hardware; reset status %d " | ||
1129 | "(freq %u MHz)\n", ret, curchan->center_freq); | ||
1130 | return ret; | ||
1131 | } | ||
1132 | |||
1133 | ath_update_txpow(priv); | ||
1134 | |||
1135 | mode = ath9k_htc_get_curmode(priv, init_channel); | ||
1136 | htc_mode = cpu_to_be16(mode); | ||
1137 | WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode); | ||
1138 | WMI_CMD(WMI_ATH_INIT_CMDID); | ||
1139 | WMI_CMD(WMI_START_RECV_CMDID); | ||
1140 | |||
1141 | ath9k_host_rx_init(priv); | ||
1142 | |||
1143 | priv->op_flags &= ~OP_INVALID; | ||
1144 | htc_start(priv->htc); | ||
1145 | |||
1146 | spin_lock_bh(&priv->tx_lock); | ||
1147 | priv->tx_queues_stop = false; | ||
1148 | spin_unlock_bh(&priv->tx_lock); | ||
1149 | |||
1150 | if (led) { | ||
1151 | /* Enable LED */ | ||
1152 | ath9k_hw_cfg_output(ah, ah->led_pin, | ||
1153 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); | ||
1154 | ath9k_hw_set_gpio(ah, ah->led_pin, 0); | ||
1155 | } | ||
1156 | |||
1157 | ieee80211_wake_queues(hw); | ||
1158 | |||
1159 | return ret; | ||
1160 | } | ||
1161 | |||
1162 | static int ath9k_htc_start(struct ieee80211_hw *hw) | ||
1163 | { | ||
1164 | struct ath9k_htc_priv *priv = hw->priv; | ||
1165 | int ret = 0; | ||
1166 | |||
1167 | mutex_lock(&priv->mutex); | ||
1168 | ret = ath9k_htc_radio_enable(hw, false); | ||
1169 | mutex_unlock(&priv->mutex); | ||
1170 | |||
1171 | return ret; | ||
1172 | } | ||
1173 | |||
1174 | static void ath9k_htc_radio_disable(struct ieee80211_hw *hw, bool led) | ||
1175 | { | ||
1176 | struct ath9k_htc_priv *priv = hw->priv; | ||
1177 | struct ath_hw *ah = priv->ah; | ||
1178 | struct ath_common *common = ath9k_hw_common(ah); | ||
1179 | int ret = 0; | ||
1180 | u8 cmd_rsp; | ||
1181 | |||
1182 | if (priv->op_flags & OP_INVALID) { | ||
1183 | ath_print(common, ATH_DBG_ANY, "Device not present\n"); | ||
1184 | return; | ||
1185 | } | ||
1186 | |||
1187 | if (led) { | ||
1188 | /* Disable LED */ | ||
1189 | ath9k_hw_set_gpio(ah, ah->led_pin, 1); | ||
1190 | ath9k_hw_cfg_gpio_input(ah, ah->led_pin); | ||
1191 | } | ||
1192 | |||
1193 | /* Cancel all the running timers/work .. */ | ||
1194 | cancel_work_sync(&priv->ps_work); | ||
1195 | cancel_delayed_work_sync(&priv->ath9k_ani_work); | ||
1196 | cancel_delayed_work_sync(&priv->ath9k_aggr_work); | ||
1197 | cancel_delayed_work_sync(&priv->ath9k_led_blink_work); | ||
1198 | ath9k_led_stop_brightness(priv); | ||
1199 | |||
1200 | ath9k_htc_ps_wakeup(priv); | ||
1201 | htc_stop(priv->htc); | ||
1202 | WMI_CMD(WMI_DISABLE_INTR_CMDID); | ||
1203 | WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID); | ||
1204 | WMI_CMD(WMI_STOP_RECV_CMDID); | ||
1205 | ath9k_hw_phy_disable(ah); | ||
1206 | ath9k_hw_disable(ah); | ||
1207 | ath9k_hw_configpcipowersave(ah, 1, 1); | ||
1208 | ath9k_htc_ps_restore(priv); | ||
1209 | ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP); | ||
1210 | |||
1211 | skb_queue_purge(&priv->tx_queue); | ||
1212 | |||
1213 | /* Remove monitor interface here */ | ||
1214 | if (ah->opmode == NL80211_IFTYPE_MONITOR) { | ||
1215 | if (ath9k_htc_remove_monitor_interface(priv)) | ||
1216 | ath_print(common, ATH_DBG_FATAL, | ||
1217 | "Unable to remove monitor interface\n"); | ||
1218 | else | ||
1219 | ath_print(common, ATH_DBG_CONFIG, | ||
1220 | "Monitor interface removed\n"); | ||
1221 | } | ||
1222 | |||
1223 | priv->op_flags |= OP_INVALID; | ||
1224 | |||
1225 | ath_print(common, ATH_DBG_CONFIG, "Driver halt\n"); | ||
1226 | } | ||
1227 | |||
1228 | static void ath9k_htc_stop(struct ieee80211_hw *hw) | ||
1229 | { | ||
1230 | struct ath9k_htc_priv *priv = hw->priv; | ||
1231 | |||
1232 | mutex_lock(&priv->mutex); | ||
1233 | ath9k_htc_radio_disable(hw, false); | ||
1234 | mutex_unlock(&priv->mutex); | ||
1235 | } | ||
1236 | |||
1237 | |||
1238 | static int ath9k_htc_add_interface(struct ieee80211_hw *hw, | ||
1239 | struct ieee80211_vif *vif) | ||
1240 | { | ||
1241 | struct ath9k_htc_priv *priv = hw->priv; | ||
1242 | struct ath9k_htc_vif *avp = (void *)vif->drv_priv; | ||
1243 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
1244 | struct ath9k_htc_target_vif hvif; | ||
1245 | int ret = 0; | ||
1246 | u8 cmd_rsp; | ||
1247 | |||
1248 | mutex_lock(&priv->mutex); | ||
1249 | |||
1250 | /* Only one interface for now */ | ||
1251 | if (priv->nvifs > 0) { | ||
1252 | ret = -ENOBUFS; | ||
1253 | goto out; | ||
1254 | } | ||
1255 | |||
1256 | ath9k_htc_ps_wakeup(priv); | ||
1257 | memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif)); | ||
1258 | memcpy(&hvif.myaddr, vif->addr, ETH_ALEN); | ||
1259 | |||
1260 | switch (vif->type) { | ||
1261 | case NL80211_IFTYPE_STATION: | ||
1262 | hvif.opmode = cpu_to_be32(HTC_M_STA); | ||
1263 | break; | ||
1264 | case NL80211_IFTYPE_ADHOC: | ||
1265 | hvif.opmode = cpu_to_be32(HTC_M_IBSS); | ||
1266 | break; | ||
1267 | default: | ||
1268 | ath_print(common, ATH_DBG_FATAL, | ||
1269 | "Interface type %d not yet supported\n", vif->type); | ||
1270 | ret = -EOPNOTSUPP; | ||
1271 | goto out; | ||
1272 | } | ||
1273 | |||
1274 | ath_print(common, ATH_DBG_CONFIG, | ||
1275 | "Attach a VIF of type: %d\n", vif->type); | ||
1276 | |||
1277 | priv->ah->opmode = vif->type; | ||
1278 | |||
1279 | /* Index starts from zero on the target */ | ||
1280 | avp->index = hvif.index = priv->nvifs; | ||
1281 | hvif.rtsthreshold = cpu_to_be16(2304); | ||
1282 | WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif); | ||
1283 | if (ret) | ||
1284 | goto out; | ||
1285 | |||
1286 | priv->nvifs++; | ||
1287 | |||
1288 | /* | ||
1289 | * We need a node in target to tx mgmt frames | ||
1290 | * before association. | ||
1291 | */ | ||
1292 | ret = ath9k_htc_add_station(priv, vif, NULL); | ||
1293 | if (ret) | ||
1294 | goto out; | ||
1295 | |||
1296 | ret = ath9k_htc_update_cap_target(priv); | ||
1297 | if (ret) | ||
1298 | ath_print(common, ATH_DBG_CONFIG, "Failed to update" | ||
1299 | " capability in target \n"); | ||
1300 | |||
1301 | priv->vif = vif; | ||
1302 | out: | ||
1303 | ath9k_htc_ps_restore(priv); | ||
1304 | mutex_unlock(&priv->mutex); | ||
1305 | return ret; | ||
1306 | } | ||
1307 | |||
1308 | static void ath9k_htc_remove_interface(struct ieee80211_hw *hw, | ||
1309 | struct ieee80211_vif *vif) | ||
1310 | { | ||
1311 | struct ath9k_htc_priv *priv = hw->priv; | ||
1312 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
1313 | struct ath9k_htc_vif *avp = (void *)vif->drv_priv; | ||
1314 | struct ath9k_htc_target_vif hvif; | ||
1315 | int ret = 0; | ||
1316 | u8 cmd_rsp; | ||
1317 | |||
1318 | ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n"); | ||
1319 | |||
1320 | mutex_lock(&priv->mutex); | ||
1321 | |||
1322 | memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif)); | ||
1323 | memcpy(&hvif.myaddr, vif->addr, ETH_ALEN); | ||
1324 | hvif.index = avp->index; | ||
1325 | WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif); | ||
1326 | priv->nvifs--; | ||
1327 | |||
1328 | ath9k_htc_remove_station(priv, vif, NULL); | ||
1329 | priv->vif = NULL; | ||
1330 | |||
1331 | mutex_unlock(&priv->mutex); | ||
1332 | } | ||
1333 | |||
1334 | static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed) | ||
1335 | { | ||
1336 | struct ath9k_htc_priv *priv = hw->priv; | ||
1337 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
1338 | struct ieee80211_conf *conf = &hw->conf; | ||
1339 | |||
1340 | mutex_lock(&priv->mutex); | ||
1341 | |||
1342 | if (changed & IEEE80211_CONF_CHANGE_IDLE) { | ||
1343 | bool enable_radio = false; | ||
1344 | bool idle = !!(conf->flags & IEEE80211_CONF_IDLE); | ||
1345 | |||
1346 | if (!idle && priv->ps_idle) | ||
1347 | enable_radio = true; | ||
1348 | |||
1349 | priv->ps_idle = idle; | ||
1350 | |||
1351 | if (enable_radio) { | ||
1352 | ath9k_htc_setpower(priv, ATH9K_PM_AWAKE); | ||
1353 | ath9k_htc_radio_enable(hw, true); | ||
1354 | ath_print(common, ATH_DBG_CONFIG, | ||
1355 | "not-idle: enabling radio\n"); | ||
1356 | } | ||
1357 | } | ||
1358 | |||
1359 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { | ||
1360 | struct ieee80211_channel *curchan = hw->conf.channel; | ||
1361 | int pos = curchan->hw_value; | ||
1362 | bool is_cw40 = false; | ||
1363 | |||
1364 | ath_print(common, ATH_DBG_CONFIG, "Set channel: %d MHz\n", | ||
1365 | curchan->center_freq); | ||
1366 | |||
1367 | if (check_rc_update(hw, &is_cw40)) | ||
1368 | ath9k_htc_rc_update(priv, is_cw40); | ||
1369 | |||
1370 | ath9k_cmn_update_ichannel(hw, &priv->ah->channels[pos]); | ||
1371 | |||
1372 | if (ath9k_htc_set_channel(priv, hw, &priv->ah->channels[pos]) < 0) { | ||
1373 | ath_print(common, ATH_DBG_FATAL, | ||
1374 | "Unable to set channel\n"); | ||
1375 | mutex_unlock(&priv->mutex); | ||
1376 | return -EINVAL; | ||
1377 | } | ||
1378 | |||
1379 | } | ||
1380 | if (changed & IEEE80211_CONF_CHANGE_PS) { | ||
1381 | if (conf->flags & IEEE80211_CONF_PS) { | ||
1382 | ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP); | ||
1383 | priv->ps_enabled = true; | ||
1384 | } else { | ||
1385 | priv->ps_enabled = false; | ||
1386 | cancel_work_sync(&priv->ps_work); | ||
1387 | ath9k_htc_setpower(priv, ATH9K_PM_AWAKE); | ||
1388 | } | ||
1389 | } | ||
1390 | |||
1391 | if (changed & IEEE80211_CONF_CHANGE_MONITOR) { | ||
1392 | if (conf->flags & IEEE80211_CONF_MONITOR) { | ||
1393 | if (ath9k_htc_add_monitor_interface(priv)) | ||
1394 | ath_print(common, ATH_DBG_FATAL, | ||
1395 | "Failed to set monitor mode\n"); | ||
1396 | else | ||
1397 | ath_print(common, ATH_DBG_CONFIG, | ||
1398 | "HW opmode set to Monitor mode\n"); | ||
1399 | } | ||
1400 | } | ||
1401 | |||
1402 | if (priv->ps_idle) { | ||
1403 | ath_print(common, ATH_DBG_CONFIG, | ||
1404 | "idle: disabling radio\n"); | ||
1405 | ath9k_htc_radio_disable(hw, true); | ||
1406 | } | ||
1407 | |||
1408 | mutex_unlock(&priv->mutex); | ||
1409 | |||
1410 | return 0; | ||
1411 | } | ||
1412 | |||
1413 | #define SUPPORTED_FILTERS \ | ||
1414 | (FIF_PROMISC_IN_BSS | \ | ||
1415 | FIF_ALLMULTI | \ | ||
1416 | FIF_CONTROL | \ | ||
1417 | FIF_PSPOLL | \ | ||
1418 | FIF_OTHER_BSS | \ | ||
1419 | FIF_BCN_PRBRESP_PROMISC | \ | ||
1420 | FIF_FCSFAIL) | ||
1421 | |||
1422 | static void ath9k_htc_configure_filter(struct ieee80211_hw *hw, | ||
1423 | unsigned int changed_flags, | ||
1424 | unsigned int *total_flags, | ||
1425 | u64 multicast) | ||
1426 | { | ||
1427 | struct ath9k_htc_priv *priv = hw->priv; | ||
1428 | u32 rfilt; | ||
1429 | |||
1430 | mutex_lock(&priv->mutex); | ||
1431 | |||
1432 | ath9k_htc_ps_wakeup(priv); | ||
1433 | changed_flags &= SUPPORTED_FILTERS; | ||
1434 | *total_flags &= SUPPORTED_FILTERS; | ||
1435 | |||
1436 | priv->rxfilter = *total_flags; | ||
1437 | rfilt = ath9k_htc_calcrxfilter(priv); | ||
1438 | ath9k_hw_setrxfilter(priv->ah, rfilt); | ||
1439 | |||
1440 | ath_print(ath9k_hw_common(priv->ah), ATH_DBG_CONFIG, | ||
1441 | "Set HW RX filter: 0x%x\n", rfilt); | ||
1442 | |||
1443 | ath9k_htc_ps_restore(priv); | ||
1444 | mutex_unlock(&priv->mutex); | ||
1445 | } | ||
1446 | |||
1447 | static void ath9k_htc_sta_notify(struct ieee80211_hw *hw, | ||
1448 | struct ieee80211_vif *vif, | ||
1449 | enum sta_notify_cmd cmd, | ||
1450 | struct ieee80211_sta *sta) | ||
1451 | { | ||
1452 | struct ath9k_htc_priv *priv = hw->priv; | ||
1453 | int ret; | ||
1454 | |||
1455 | mutex_lock(&priv->mutex); | ||
1456 | |||
1457 | switch (cmd) { | ||
1458 | case STA_NOTIFY_ADD: | ||
1459 | ret = ath9k_htc_add_station(priv, vif, sta); | ||
1460 | if (!ret) | ||
1461 | ath9k_htc_init_rate(priv, vif, sta); | ||
1462 | break; | ||
1463 | case STA_NOTIFY_REMOVE: | ||
1464 | ath9k_htc_remove_station(priv, vif, sta); | ||
1465 | break; | ||
1466 | default: | ||
1467 | break; | ||
1468 | } | ||
1469 | |||
1470 | mutex_unlock(&priv->mutex); | ||
1471 | } | ||
1472 | |||
1473 | static int ath9k_htc_conf_tx(struct ieee80211_hw *hw, u16 queue, | ||
1474 | const struct ieee80211_tx_queue_params *params) | ||
1475 | { | ||
1476 | struct ath9k_htc_priv *priv = hw->priv; | ||
1477 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
1478 | struct ath9k_tx_queue_info qi; | ||
1479 | int ret = 0, qnum; | ||
1480 | |||
1481 | if (queue >= WME_NUM_AC) | ||
1482 | return 0; | ||
1483 | |||
1484 | mutex_lock(&priv->mutex); | ||
1485 | |||
1486 | memset(&qi, 0, sizeof(struct ath9k_tx_queue_info)); | ||
1487 | |||
1488 | qi.tqi_aifs = params->aifs; | ||
1489 | qi.tqi_cwmin = params->cw_min; | ||
1490 | qi.tqi_cwmax = params->cw_max; | ||
1491 | qi.tqi_burstTime = params->txop; | ||
1492 | |||
1493 | qnum = get_hw_qnum(queue, priv->hwq_map); | ||
1494 | |||
1495 | ath_print(common, ATH_DBG_CONFIG, | ||
1496 | "Configure tx [queue/hwq] [%d/%d], " | ||
1497 | "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", | ||
1498 | queue, qnum, params->aifs, params->cw_min, | ||
1499 | params->cw_max, params->txop); | ||
1500 | |||
1501 | ret = ath_htc_txq_update(priv, qnum, &qi); | ||
1502 | if (ret) | ||
1503 | ath_print(common, ATH_DBG_FATAL, "TXQ Update failed\n"); | ||
1504 | |||
1505 | mutex_unlock(&priv->mutex); | ||
1506 | |||
1507 | return ret; | ||
1508 | } | ||
1509 | |||
1510 | static int ath9k_htc_set_key(struct ieee80211_hw *hw, | ||
1511 | enum set_key_cmd cmd, | ||
1512 | struct ieee80211_vif *vif, | ||
1513 | struct ieee80211_sta *sta, | ||
1514 | struct ieee80211_key_conf *key) | ||
1515 | { | ||
1516 | struct ath9k_htc_priv *priv = hw->priv; | ||
1517 | struct ath_common *common = ath9k_hw_common(priv->ah); | ||
1518 | int ret = 0; | ||
1519 | |||
1520 | if (htc_modparam_nohwcrypt) | ||
1521 | return -ENOSPC; | ||
1522 | |||
1523 | mutex_lock(&priv->mutex); | ||
1524 | ath_print(common, ATH_DBG_CONFIG, "Set HW Key\n"); | ||
1525 | ath9k_htc_ps_wakeup(priv); | ||
1526 | |||
1527 | switch (cmd) { | ||
1528 | case SET_KEY: | ||
1529 | ret = ath9k_cmn_key_config(common, vif, sta, key); | ||
1530 | if (ret >= 0) { | ||
1531 | key->hw_key_idx = ret; | ||
1532 | /* push IV and Michael MIC generation to stack */ | ||
1533 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | ||
1534 | if (key->alg == ALG_TKIP) | ||
1535 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | ||
1536 | if (priv->ah->sw_mgmt_crypto && key->alg == ALG_CCMP) | ||
1537 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; | ||
1538 | ret = 0; | ||
1539 | } | ||
1540 | break; | ||
1541 | case DISABLE_KEY: | ||
1542 | ath9k_cmn_key_delete(common, key); | ||
1543 | break; | ||
1544 | default: | ||
1545 | ret = -EINVAL; | ||
1546 | } | ||
1547 | |||
1548 | ath9k_htc_ps_restore(priv); | ||
1549 | mutex_unlock(&priv->mutex); | ||
1550 | |||
1551 | return ret; | ||
1552 | } | ||
1553 | |||
1554 | static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw, | ||
1555 | struct ieee80211_vif *vif, | ||
1556 | struct ieee80211_bss_conf *bss_conf, | ||
1557 | u32 changed) | ||
1558 | { | ||
1559 | struct ath9k_htc_priv *priv = hw->priv; | ||
1560 | struct ath_hw *ah = priv->ah; | ||
1561 | struct ath_common *common = ath9k_hw_common(ah); | ||
1562 | |||
1563 | mutex_lock(&priv->mutex); | ||
1564 | ath9k_htc_ps_wakeup(priv); | ||
1565 | |||
1566 | if (changed & BSS_CHANGED_ASSOC) { | ||
1567 | common->curaid = bss_conf->assoc ? | ||
1568 | bss_conf->aid : 0; | ||
1569 | ath_print(common, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", | ||
1570 | bss_conf->assoc); | ||
1571 | |||
1572 | if (bss_conf->assoc) { | ||
1573 | priv->op_flags |= OP_ASSOCIATED; | ||
1574 | ath_start_ani(priv); | ||
1575 | } else { | ||
1576 | priv->op_flags &= ~OP_ASSOCIATED; | ||
1577 | cancel_work_sync(&priv->ps_work); | ||
1578 | cancel_delayed_work_sync(&priv->ath9k_ani_work); | ||
1579 | } | ||
1580 | } | ||
1581 | |||
1582 | if (changed & BSS_CHANGED_BSSID) { | ||
1583 | /* Set BSSID */ | ||
1584 | memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); | ||
1585 | ath9k_hw_write_associd(ah); | ||
1586 | |||
1587 | ath_print(common, ATH_DBG_CONFIG, | ||
1588 | "BSSID: %pM aid: 0x%x\n", | ||
1589 | common->curbssid, common->curaid); | ||
1590 | } | ||
1591 | |||
1592 | if ((changed & BSS_CHANGED_BEACON_INT) || | ||
1593 | (changed & BSS_CHANGED_BEACON) || | ||
1594 | ((changed & BSS_CHANGED_BEACON_ENABLED) && | ||
1595 | bss_conf->enable_beacon)) { | ||
1596 | priv->op_flags |= OP_ENABLE_BEACON; | ||
1597 | ath9k_htc_beacon_config(priv, vif); | ||
1598 | } | ||
1599 | |||
1600 | if ((changed & BSS_CHANGED_BEACON_ENABLED) && | ||
1601 | !bss_conf->enable_beacon) { | ||
1602 | priv->op_flags &= ~OP_ENABLE_BEACON; | ||
1603 | ath9k_htc_beacon_config(priv, vif); | ||
1604 | } | ||
1605 | |||
1606 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { | ||
1607 | ath_print(common, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", | ||
1608 | bss_conf->use_short_preamble); | ||
1609 | if (bss_conf->use_short_preamble) | ||
1610 | priv->op_flags |= OP_PREAMBLE_SHORT; | ||
1611 | else | ||
1612 | priv->op_flags &= ~OP_PREAMBLE_SHORT; | ||
1613 | } | ||
1614 | |||
1615 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { | ||
1616 | ath_print(common, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", | ||
1617 | bss_conf->use_cts_prot); | ||
1618 | if (bss_conf->use_cts_prot && | ||
1619 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) | ||
1620 | priv->op_flags |= OP_PROTECT_ENABLE; | ||
1621 | else | ||
1622 | priv->op_flags &= ~OP_PROTECT_ENABLE; | ||
1623 | } | ||
1624 | |||
1625 | if (changed & BSS_CHANGED_ERP_SLOT) { | ||
1626 | if (bss_conf->use_short_slot) | ||
1627 | ah->slottime = 9; | ||
1628 | else | ||
1629 | ah->slottime = 20; | ||
1630 | |||
1631 | ath9k_hw_init_global_settings(ah); | ||
1632 | } | ||
1633 | |||
1634 | ath9k_htc_ps_restore(priv); | ||
1635 | mutex_unlock(&priv->mutex); | ||
1636 | } | ||
1637 | |||
1638 | static u64 ath9k_htc_get_tsf(struct ieee80211_hw *hw) | ||
1639 | { | ||
1640 | struct ath9k_htc_priv *priv = hw->priv; | ||
1641 | u64 tsf; | ||
1642 | |||
1643 | mutex_lock(&priv->mutex); | ||
1644 | tsf = ath9k_hw_gettsf64(priv->ah); | ||
1645 | mutex_unlock(&priv->mutex); | ||
1646 | |||
1647 | return tsf; | ||
1648 | } | ||
1649 | |||
1650 | static void ath9k_htc_set_tsf(struct ieee80211_hw *hw, u64 tsf) | ||
1651 | { | ||
1652 | struct ath9k_htc_priv *priv = hw->priv; | ||
1653 | |||
1654 | mutex_lock(&priv->mutex); | ||
1655 | ath9k_hw_settsf64(priv->ah, tsf); | ||
1656 | mutex_unlock(&priv->mutex); | ||
1657 | } | ||
1658 | |||
1659 | static void ath9k_htc_reset_tsf(struct ieee80211_hw *hw) | ||
1660 | { | ||
1661 | struct ath9k_htc_priv *priv = hw->priv; | ||
1662 | |||
1663 | ath9k_htc_ps_wakeup(priv); | ||
1664 | mutex_lock(&priv->mutex); | ||
1665 | ath9k_hw_reset_tsf(priv->ah); | ||
1666 | mutex_unlock(&priv->mutex); | ||
1667 | ath9k_htc_ps_restore(priv); | ||
1668 | } | ||
1669 | |||
1670 | static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw, | ||
1671 | struct ieee80211_vif *vif, | ||
1672 | enum ieee80211_ampdu_mlme_action action, | ||
1673 | struct ieee80211_sta *sta, | ||
1674 | u16 tid, u16 *ssn) | ||
1675 | { | ||
1676 | struct ath9k_htc_priv *priv = hw->priv; | ||
1677 | struct ath9k_htc_aggr_work *work = &priv->aggr_work; | ||
1678 | struct ath9k_htc_sta *ista; | ||
1679 | |||
1680 | switch (action) { | ||
1681 | case IEEE80211_AMPDU_RX_START: | ||
1682 | break; | ||
1683 | case IEEE80211_AMPDU_RX_STOP: | ||
1684 | break; | ||
1685 | case IEEE80211_AMPDU_TX_START: | ||
1686 | case IEEE80211_AMPDU_TX_STOP: | ||
1687 | if (!(priv->op_flags & OP_TXAGGR)) | ||
1688 | return -ENOTSUPP; | ||
1689 | memcpy(work->sta_addr, sta->addr, ETH_ALEN); | ||
1690 | work->hw = hw; | ||
1691 | work->vif = vif; | ||
1692 | work->action = action; | ||
1693 | work->tid = tid; | ||
1694 | ieee80211_queue_delayed_work(hw, &priv->ath9k_aggr_work, 0); | ||
1695 | break; | ||
1696 | case IEEE80211_AMPDU_TX_OPERATIONAL: | ||
1697 | ista = (struct ath9k_htc_sta *) sta->drv_priv; | ||
1698 | ista->tid_state[tid] = AGGR_OPERATIONAL; | ||
1699 | break; | ||
1700 | default: | ||
1701 | ath_print(ath9k_hw_common(priv->ah), ATH_DBG_FATAL, | ||
1702 | "Unknown AMPDU action\n"); | ||
1703 | } | ||
1704 | |||
1705 | return 0; | ||
1706 | } | ||
1707 | |||
1708 | static void ath9k_htc_sw_scan_start(struct ieee80211_hw *hw) | ||
1709 | { | ||
1710 | struct ath9k_htc_priv *priv = hw->priv; | ||
1711 | |||
1712 | mutex_lock(&priv->mutex); | ||
1713 | spin_lock_bh(&priv->beacon_lock); | ||
1714 | priv->op_flags |= OP_SCANNING; | ||
1715 | spin_unlock_bh(&priv->beacon_lock); | ||
1716 | cancel_work_sync(&priv->ps_work); | ||
1717 | cancel_delayed_work_sync(&priv->ath9k_ani_work); | ||
1718 | mutex_unlock(&priv->mutex); | ||
1719 | } | ||
1720 | |||
1721 | static void ath9k_htc_sw_scan_complete(struct ieee80211_hw *hw) | ||
1722 | { | ||
1723 | struct ath9k_htc_priv *priv = hw->priv; | ||
1724 | |||
1725 | ath9k_htc_ps_wakeup(priv); | ||
1726 | mutex_lock(&priv->mutex); | ||
1727 | spin_lock_bh(&priv->beacon_lock); | ||
1728 | priv->op_flags &= ~OP_SCANNING; | ||
1729 | spin_unlock_bh(&priv->beacon_lock); | ||
1730 | priv->op_flags |= OP_FULL_RESET; | ||
1731 | if (priv->op_flags & OP_ASSOCIATED) | ||
1732 | ath9k_htc_beacon_config(priv, priv->vif); | ||
1733 | ath_start_ani(priv); | ||
1734 | mutex_unlock(&priv->mutex); | ||
1735 | ath9k_htc_ps_restore(priv); | ||
1736 | } | ||
1737 | |||
1738 | static int ath9k_htc_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | ||
1739 | { | ||
1740 | return 0; | ||
1741 | } | ||
1742 | |||
1743 | static void ath9k_htc_set_coverage_class(struct ieee80211_hw *hw, | ||
1744 | u8 coverage_class) | ||
1745 | { | ||
1746 | struct ath9k_htc_priv *priv = hw->priv; | ||
1747 | |||
1748 | mutex_lock(&priv->mutex); | ||
1749 | priv->ah->coverage_class = coverage_class; | ||
1750 | ath9k_hw_init_global_settings(priv->ah); | ||
1751 | mutex_unlock(&priv->mutex); | ||
1752 | } | ||
1753 | |||
1754 | struct ieee80211_ops ath9k_htc_ops = { | ||
1755 | .tx = ath9k_htc_tx, | ||
1756 | .start = ath9k_htc_start, | ||
1757 | .stop = ath9k_htc_stop, | ||
1758 | .add_interface = ath9k_htc_add_interface, | ||
1759 | .remove_interface = ath9k_htc_remove_interface, | ||
1760 | .config = ath9k_htc_config, | ||
1761 | .configure_filter = ath9k_htc_configure_filter, | ||
1762 | .sta_notify = ath9k_htc_sta_notify, | ||
1763 | .conf_tx = ath9k_htc_conf_tx, | ||
1764 | .bss_info_changed = ath9k_htc_bss_info_changed, | ||
1765 | .set_key = ath9k_htc_set_key, | ||
1766 | .get_tsf = ath9k_htc_get_tsf, | ||
1767 | .set_tsf = ath9k_htc_set_tsf, | ||
1768 | .reset_tsf = ath9k_htc_reset_tsf, | ||
1769 | .ampdu_action = ath9k_htc_ampdu_action, | ||
1770 | .sw_scan_start = ath9k_htc_sw_scan_start, | ||
1771 | .sw_scan_complete = ath9k_htc_sw_scan_complete, | ||
1772 | .set_rts_threshold = ath9k_htc_set_rts_threshold, | ||
1773 | .rfkill_poll = ath9k_htc_rfkill_poll_state, | ||
1774 | .set_coverage_class = ath9k_htc_set_coverage_class, | ||
1775 | }; | ||