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Commit | Line | Data |
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f0706e82 JB |
1 | /* |
2 | * Copyright 2006, Johannes Berg <johannes@sipsolutions.net> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | ||
9 | /* just for IFNAMSIZ */ | |
10 | #include <linux/if.h> | |
5a0e3ad6 | 11 | #include <linux/slab.h> |
bc3b2d7f | 12 | #include <linux/export.h> |
2c8dccc7 | 13 | #include "led.h" |
f0706e82 | 14 | |
47f0c502 MB |
15 | void ieee80211_led_assoc(struct ieee80211_local *local, bool associated) |
16 | { | |
8d5c2585 | 17 | if (!atomic_read(&local->assoc_led_active)) |
47f0c502 MB |
18 | return; |
19 | if (associated) | |
8d5c2585 | 20 | led_trigger_event(&local->assoc_led, LED_FULL); |
47f0c502 | 21 | else |
8d5c2585 | 22 | led_trigger_event(&local->assoc_led, LED_OFF); |
47f0c502 MB |
23 | } |
24 | ||
cdcb006f ID |
25 | void ieee80211_led_radio(struct ieee80211_local *local, bool enabled) |
26 | { | |
8d5c2585 | 27 | if (!atomic_read(&local->radio_led_active)) |
cdcb006f ID |
28 | return; |
29 | if (enabled) | |
8d5c2585 | 30 | led_trigger_event(&local->radio_led, LED_FULL); |
cdcb006f | 31 | else |
8d5c2585 JB |
32 | led_trigger_event(&local->radio_led, LED_OFF); |
33 | } | |
34 | ||
35 | void ieee80211_alloc_led_names(struct ieee80211_local *local) | |
36 | { | |
37 | local->rx_led.name = kasprintf(GFP_KERNEL, "%srx", | |
38 | wiphy_name(local->hw.wiphy)); | |
39 | local->tx_led.name = kasprintf(GFP_KERNEL, "%stx", | |
40 | wiphy_name(local->hw.wiphy)); | |
41 | local->assoc_led.name = kasprintf(GFP_KERNEL, "%sassoc", | |
42 | wiphy_name(local->hw.wiphy)); | |
43 | local->radio_led.name = kasprintf(GFP_KERNEL, "%sradio", | |
44 | wiphy_name(local->hw.wiphy)); | |
45 | } | |
46 | ||
47 | void ieee80211_free_led_names(struct ieee80211_local *local) | |
48 | { | |
49 | kfree(local->rx_led.name); | |
50 | kfree(local->tx_led.name); | |
51 | kfree(local->assoc_led.name); | |
52 | kfree(local->radio_led.name); | |
53 | } | |
54 | ||
2282e125 | 55 | static int ieee80211_tx_led_activate(struct led_classdev *led_cdev) |
8d5c2585 JB |
56 | { |
57 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
58 | struct ieee80211_local, | |
59 | tx_led); | |
60 | ||
61 | atomic_inc(&local->tx_led_active); | |
2282e125 UKK |
62 | |
63 | return 0; | |
8d5c2585 JB |
64 | } |
65 | ||
66 | static void ieee80211_tx_led_deactivate(struct led_classdev *led_cdev) | |
67 | { | |
68 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
69 | struct ieee80211_local, | |
70 | tx_led); | |
71 | ||
72 | atomic_dec(&local->tx_led_active); | |
73 | } | |
74 | ||
2282e125 | 75 | static int ieee80211_rx_led_activate(struct led_classdev *led_cdev) |
8d5c2585 JB |
76 | { |
77 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
78 | struct ieee80211_local, | |
79 | rx_led); | |
80 | ||
81 | atomic_inc(&local->rx_led_active); | |
2282e125 UKK |
82 | |
83 | return 0; | |
8d5c2585 JB |
84 | } |
85 | ||
86 | static void ieee80211_rx_led_deactivate(struct led_classdev *led_cdev) | |
87 | { | |
88 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
89 | struct ieee80211_local, | |
90 | rx_led); | |
91 | ||
92 | atomic_dec(&local->rx_led_active); | |
93 | } | |
94 | ||
2282e125 | 95 | static int ieee80211_assoc_led_activate(struct led_classdev *led_cdev) |
8d5c2585 JB |
96 | { |
97 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
98 | struct ieee80211_local, | |
99 | assoc_led); | |
100 | ||
101 | atomic_inc(&local->assoc_led_active); | |
2282e125 UKK |
102 | |
103 | return 0; | |
8d5c2585 JB |
104 | } |
105 | ||
106 | static void ieee80211_assoc_led_deactivate(struct led_classdev *led_cdev) | |
107 | { | |
108 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
109 | struct ieee80211_local, | |
110 | assoc_led); | |
111 | ||
112 | atomic_dec(&local->assoc_led_active); | |
113 | } | |
114 | ||
2282e125 | 115 | static int ieee80211_radio_led_activate(struct led_classdev *led_cdev) |
8d5c2585 JB |
116 | { |
117 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
118 | struct ieee80211_local, | |
119 | radio_led); | |
120 | ||
121 | atomic_inc(&local->radio_led_active); | |
2282e125 UKK |
122 | |
123 | return 0; | |
8d5c2585 JB |
124 | } |
125 | ||
126 | static void ieee80211_radio_led_deactivate(struct led_classdev *led_cdev) | |
127 | { | |
128 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
129 | struct ieee80211_local, | |
130 | radio_led); | |
131 | ||
132 | atomic_dec(&local->radio_led_active); | |
133 | } | |
134 | ||
2282e125 | 135 | static int ieee80211_tpt_led_activate(struct led_classdev *led_cdev) |
8d5c2585 JB |
136 | { |
137 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
138 | struct ieee80211_local, | |
139 | tpt_led); | |
140 | ||
141 | atomic_inc(&local->tpt_led_active); | |
2282e125 UKK |
142 | |
143 | return 0; | |
cdcb006f ID |
144 | } |
145 | ||
8d5c2585 | 146 | static void ieee80211_tpt_led_deactivate(struct led_classdev *led_cdev) |
fe67c913 | 147 | { |
8d5c2585 JB |
148 | struct ieee80211_local *local = container_of(led_cdev->trigger, |
149 | struct ieee80211_local, | |
150 | tpt_led); | |
151 | ||
152 | atomic_dec(&local->tpt_led_active); | |
fe67c913 JB |
153 | } |
154 | ||
f0706e82 JB |
155 | void ieee80211_led_init(struct ieee80211_local *local) |
156 | { | |
8d5c2585 JB |
157 | atomic_set(&local->rx_led_active, 0); |
158 | local->rx_led.activate = ieee80211_rx_led_activate; | |
159 | local->rx_led.deactivate = ieee80211_rx_led_deactivate; | |
160 | if (local->rx_led.name && led_trigger_register(&local->rx_led)) { | |
161 | kfree(local->rx_led.name); | |
162 | local->rx_led.name = NULL; | |
f0706e82 JB |
163 | } |
164 | ||
8d5c2585 JB |
165 | atomic_set(&local->tx_led_active, 0); |
166 | local->tx_led.activate = ieee80211_tx_led_activate; | |
167 | local->tx_led.deactivate = ieee80211_tx_led_deactivate; | |
168 | if (local->tx_led.name && led_trigger_register(&local->tx_led)) { | |
169 | kfree(local->tx_led.name); | |
170 | local->tx_led.name = NULL; | |
47f0c502 MB |
171 | } |
172 | ||
8d5c2585 JB |
173 | atomic_set(&local->assoc_led_active, 0); |
174 | local->assoc_led.activate = ieee80211_assoc_led_activate; | |
175 | local->assoc_led.deactivate = ieee80211_assoc_led_deactivate; | |
176 | if (local->assoc_led.name && led_trigger_register(&local->assoc_led)) { | |
177 | kfree(local->assoc_led.name); | |
178 | local->assoc_led.name = NULL; | |
f0706e82 | 179 | } |
cdcb006f | 180 | |
8d5c2585 JB |
181 | atomic_set(&local->radio_led_active, 0); |
182 | local->radio_led.activate = ieee80211_radio_led_activate; | |
183 | local->radio_led.deactivate = ieee80211_radio_led_deactivate; | |
184 | if (local->radio_led.name && led_trigger_register(&local->radio_led)) { | |
185 | kfree(local->radio_led.name); | |
186 | local->radio_led.name = NULL; | |
cdcb006f | 187 | } |
e1e54068 | 188 | |
8d5c2585 | 189 | atomic_set(&local->tpt_led_active, 0); |
e1e54068 | 190 | if (local->tpt_led_trigger) { |
8d5c2585 JB |
191 | local->tpt_led.activate = ieee80211_tpt_led_activate; |
192 | local->tpt_led.deactivate = ieee80211_tpt_led_deactivate; | |
193 | if (led_trigger_register(&local->tpt_led)) { | |
e1e54068 JB |
194 | kfree(local->tpt_led_trigger); |
195 | local->tpt_led_trigger = NULL; | |
196 | } | |
197 | } | |
f0706e82 JB |
198 | } |
199 | ||
200 | void ieee80211_led_exit(struct ieee80211_local *local) | |
201 | { | |
8d5c2585 JB |
202 | if (local->radio_led.name) |
203 | led_trigger_unregister(&local->radio_led); | |
204 | if (local->assoc_led.name) | |
205 | led_trigger_unregister(&local->assoc_led); | |
206 | if (local->tx_led.name) | |
207 | led_trigger_unregister(&local->tx_led); | |
208 | if (local->rx_led.name) | |
209 | led_trigger_unregister(&local->rx_led); | |
e1e54068 JB |
210 | |
211 | if (local->tpt_led_trigger) { | |
8d5c2585 | 212 | led_trigger_unregister(&local->tpt_led); |
e1e54068 JB |
213 | kfree(local->tpt_led_trigger); |
214 | } | |
f0706e82 JB |
215 | } |
216 | ||
f5c4ae07 | 217 | const char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw) |
cdcb006f ID |
218 | { |
219 | struct ieee80211_local *local = hw_to_local(hw); | |
220 | ||
8d5c2585 | 221 | return local->radio_led.name; |
cdcb006f ID |
222 | } |
223 | EXPORT_SYMBOL(__ieee80211_get_radio_led_name); | |
224 | ||
f5c4ae07 | 225 | const char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) |
47f0c502 MB |
226 | { |
227 | struct ieee80211_local *local = hw_to_local(hw); | |
228 | ||
8d5c2585 | 229 | return local->assoc_led.name; |
47f0c502 MB |
230 | } |
231 | EXPORT_SYMBOL(__ieee80211_get_assoc_led_name); | |
232 | ||
f5c4ae07 | 233 | const char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw) |
f0706e82 JB |
234 | { |
235 | struct ieee80211_local *local = hw_to_local(hw); | |
236 | ||
8d5c2585 | 237 | return local->tx_led.name; |
f0706e82 JB |
238 | } |
239 | EXPORT_SYMBOL(__ieee80211_get_tx_led_name); | |
240 | ||
f5c4ae07 | 241 | const char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw) |
f0706e82 JB |
242 | { |
243 | struct ieee80211_local *local = hw_to_local(hw); | |
244 | ||
8d5c2585 | 245 | return local->rx_led.name; |
f0706e82 JB |
246 | } |
247 | EXPORT_SYMBOL(__ieee80211_get_rx_led_name); | |
e1e54068 JB |
248 | |
249 | static unsigned long tpt_trig_traffic(struct ieee80211_local *local, | |
250 | struct tpt_led_trigger *tpt_trig) | |
251 | { | |
252 | unsigned long traffic, delta; | |
253 | ||
254 | traffic = tpt_trig->tx_bytes + tpt_trig->rx_bytes; | |
255 | ||
256 | delta = traffic - tpt_trig->prev_traffic; | |
257 | tpt_trig->prev_traffic = traffic; | |
258 | return DIV_ROUND_UP(delta, 1024 / 8); | |
259 | } | |
260 | ||
34f11cd3 | 261 | static void tpt_trig_timer(struct timer_list *t) |
e1e54068 | 262 | { |
34f11cd3 KC |
263 | struct tpt_led_trigger *tpt_trig = from_timer(tpt_trig, t, timer); |
264 | struct ieee80211_local *local = tpt_trig->local; | |
e1e54068 JB |
265 | struct led_classdev *led_cdev; |
266 | unsigned long on, off, tpt; | |
267 | int i; | |
268 | ||
269 | if (!tpt_trig->running) | |
270 | return; | |
271 | ||
272 | mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ)); | |
273 | ||
274 | tpt = tpt_trig_traffic(local, tpt_trig); | |
275 | ||
276 | /* default to just solid on */ | |
277 | on = 1; | |
278 | off = 0; | |
279 | ||
280 | for (i = tpt_trig->blink_table_len - 1; i >= 0; i--) { | |
281 | if (tpt_trig->blink_table[i].throughput < 0 || | |
282 | tpt > tpt_trig->blink_table[i].throughput) { | |
283 | off = tpt_trig->blink_table[i].blink_time / 2; | |
284 | on = tpt_trig->blink_table[i].blink_time - off; | |
285 | break; | |
286 | } | |
287 | } | |
288 | ||
658358ce JB |
289 | read_lock(&local->tpt_led.leddev_list_lock); |
290 | list_for_each_entry(led_cdev, &local->tpt_led.led_cdevs, trig_list) | |
e1e54068 | 291 | led_blink_set(led_cdev, &on, &off); |
658358ce | 292 | read_unlock(&local->tpt_led.leddev_list_lock); |
e1e54068 JB |
293 | } |
294 | ||
f5c4ae07 JB |
295 | const char * |
296 | __ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, | |
297 | unsigned int flags, | |
298 | const struct ieee80211_tpt_blink *blink_table, | |
299 | unsigned int blink_table_len) | |
e1e54068 JB |
300 | { |
301 | struct ieee80211_local *local = hw_to_local(hw); | |
302 | struct tpt_led_trigger *tpt_trig; | |
303 | ||
304 | if (WARN_ON(local->tpt_led_trigger)) | |
305 | return NULL; | |
306 | ||
307 | tpt_trig = kzalloc(sizeof(struct tpt_led_trigger), GFP_KERNEL); | |
308 | if (!tpt_trig) | |
309 | return NULL; | |
310 | ||
311 | snprintf(tpt_trig->name, sizeof(tpt_trig->name), | |
312 | "%stpt", wiphy_name(local->hw.wiphy)); | |
313 | ||
8d5c2585 | 314 | local->tpt_led.name = tpt_trig->name; |
e1e54068 JB |
315 | |
316 | tpt_trig->blink_table = blink_table; | |
317 | tpt_trig->blink_table_len = blink_table_len; | |
67408c8c | 318 | tpt_trig->want = flags; |
34f11cd3 | 319 | tpt_trig->local = local; |
e1e54068 | 320 | |
34f11cd3 | 321 | timer_setup(&tpt_trig->timer, tpt_trig_timer, 0); |
e1e54068 JB |
322 | |
323 | local->tpt_led_trigger = tpt_trig; | |
324 | ||
325 | return tpt_trig->name; | |
326 | } | |
327 | EXPORT_SYMBOL(__ieee80211_create_tpt_led_trigger); | |
328 | ||
67408c8c | 329 | static void ieee80211_start_tpt_led_trig(struct ieee80211_local *local) |
e1e54068 JB |
330 | { |
331 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
332 | ||
67408c8c | 333 | if (tpt_trig->running) |
e1e54068 JB |
334 | return; |
335 | ||
336 | /* reset traffic */ | |
337 | tpt_trig_traffic(local, tpt_trig); | |
338 | tpt_trig->running = true; | |
339 | ||
34f11cd3 | 340 | tpt_trig_timer(&tpt_trig->timer); |
e1e54068 JB |
341 | mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ)); |
342 | } | |
343 | ||
67408c8c | 344 | static void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local) |
e1e54068 JB |
345 | { |
346 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
347 | struct led_classdev *led_cdev; | |
348 | ||
67408c8c | 349 | if (!tpt_trig->running) |
e1e54068 JB |
350 | return; |
351 | ||
352 | tpt_trig->running = false; | |
353 | del_timer_sync(&tpt_trig->timer); | |
354 | ||
658358ce JB |
355 | read_lock(&local->tpt_led.leddev_list_lock); |
356 | list_for_each_entry(led_cdev, &local->tpt_led.led_cdevs, trig_list) | |
19cd67e2 | 357 | led_set_brightness(led_cdev, LED_OFF); |
658358ce | 358 | read_unlock(&local->tpt_led.leddev_list_lock); |
e1e54068 | 359 | } |
67408c8c JB |
360 | |
361 | void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local, | |
362 | unsigned int types_on, unsigned int types_off) | |
363 | { | |
364 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
365 | bool allowed; | |
366 | ||
367 | WARN_ON(types_on & types_off); | |
368 | ||
369 | if (!tpt_trig) | |
370 | return; | |
371 | ||
372 | tpt_trig->active &= ~types_off; | |
373 | tpt_trig->active |= types_on; | |
374 | ||
375 | /* | |
376 | * Regardless of wanted state, we shouldn't blink when | |
377 | * the radio is disabled -- this can happen due to some | |
378 | * code ordering issues with __ieee80211_recalc_idle() | |
379 | * being called before the radio is started. | |
380 | */ | |
381 | allowed = tpt_trig->active & IEEE80211_TPT_LEDTRIG_FL_RADIO; | |
382 | ||
383 | if (!allowed || !(tpt_trig->active & tpt_trig->want)) | |
384 | ieee80211_stop_tpt_led_trig(local); | |
385 | else | |
386 | ieee80211_start_tpt_led_trig(local); | |
387 | } |