Commit | Line | Data |
---|---|---|
d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
f0706e82 JB |
2 | /* |
3 | * Copyright 2006, Johannes Berg <johannes@sipsolutions.net> | |
f0706e82 JB |
4 | */ |
5 | ||
6 | /* just for IFNAMSIZ */ | |
7 | #include <linux/if.h> | |
5a0e3ad6 | 8 | #include <linux/slab.h> |
bc3b2d7f | 9 | #include <linux/export.h> |
2c8dccc7 | 10 | #include "led.h" |
f0706e82 | 11 | |
47f0c502 MB |
12 | void ieee80211_led_assoc(struct ieee80211_local *local, bool associated) |
13 | { | |
8d5c2585 | 14 | if (!atomic_read(&local->assoc_led_active)) |
47f0c502 MB |
15 | return; |
16 | if (associated) | |
8d5c2585 | 17 | led_trigger_event(&local->assoc_led, LED_FULL); |
47f0c502 | 18 | else |
8d5c2585 | 19 | led_trigger_event(&local->assoc_led, LED_OFF); |
47f0c502 MB |
20 | } |
21 | ||
cdcb006f ID |
22 | void ieee80211_led_radio(struct ieee80211_local *local, bool enabled) |
23 | { | |
8d5c2585 | 24 | if (!atomic_read(&local->radio_led_active)) |
cdcb006f ID |
25 | return; |
26 | if (enabled) | |
8d5c2585 | 27 | led_trigger_event(&local->radio_led, LED_FULL); |
cdcb006f | 28 | else |
8d5c2585 JB |
29 | led_trigger_event(&local->radio_led, LED_OFF); |
30 | } | |
31 | ||
32 | void ieee80211_alloc_led_names(struct ieee80211_local *local) | |
33 | { | |
34 | local->rx_led.name = kasprintf(GFP_KERNEL, "%srx", | |
35 | wiphy_name(local->hw.wiphy)); | |
36 | local->tx_led.name = kasprintf(GFP_KERNEL, "%stx", | |
37 | wiphy_name(local->hw.wiphy)); | |
38 | local->assoc_led.name = kasprintf(GFP_KERNEL, "%sassoc", | |
39 | wiphy_name(local->hw.wiphy)); | |
40 | local->radio_led.name = kasprintf(GFP_KERNEL, "%sradio", | |
41 | wiphy_name(local->hw.wiphy)); | |
42 | } | |
43 | ||
44 | void ieee80211_free_led_names(struct ieee80211_local *local) | |
45 | { | |
46 | kfree(local->rx_led.name); | |
47 | kfree(local->tx_led.name); | |
48 | kfree(local->assoc_led.name); | |
49 | kfree(local->radio_led.name); | |
50 | } | |
51 | ||
2282e125 | 52 | static int ieee80211_tx_led_activate(struct led_classdev *led_cdev) |
8d5c2585 JB |
53 | { |
54 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
55 | struct ieee80211_local, | |
56 | tx_led); | |
57 | ||
58 | atomic_inc(&local->tx_led_active); | |
2282e125 UKK |
59 | |
60 | return 0; | |
8d5c2585 JB |
61 | } |
62 | ||
63 | static void ieee80211_tx_led_deactivate(struct led_classdev *led_cdev) | |
64 | { | |
65 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
66 | struct ieee80211_local, | |
67 | tx_led); | |
68 | ||
69 | atomic_dec(&local->tx_led_active); | |
70 | } | |
71 | ||
2282e125 | 72 | static int ieee80211_rx_led_activate(struct led_classdev *led_cdev) |
8d5c2585 JB |
73 | { |
74 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
75 | struct ieee80211_local, | |
76 | rx_led); | |
77 | ||
78 | atomic_inc(&local->rx_led_active); | |
2282e125 UKK |
79 | |
80 | return 0; | |
8d5c2585 JB |
81 | } |
82 | ||
83 | static void ieee80211_rx_led_deactivate(struct led_classdev *led_cdev) | |
84 | { | |
85 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
86 | struct ieee80211_local, | |
87 | rx_led); | |
88 | ||
89 | atomic_dec(&local->rx_led_active); | |
90 | } | |
91 | ||
2282e125 | 92 | static int ieee80211_assoc_led_activate(struct led_classdev *led_cdev) |
8d5c2585 JB |
93 | { |
94 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
95 | struct ieee80211_local, | |
96 | assoc_led); | |
97 | ||
98 | atomic_inc(&local->assoc_led_active); | |
2282e125 UKK |
99 | |
100 | return 0; | |
8d5c2585 JB |
101 | } |
102 | ||
103 | static void ieee80211_assoc_led_deactivate(struct led_classdev *led_cdev) | |
104 | { | |
105 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
106 | struct ieee80211_local, | |
107 | assoc_led); | |
108 | ||
109 | atomic_dec(&local->assoc_led_active); | |
110 | } | |
111 | ||
2282e125 | 112 | static int ieee80211_radio_led_activate(struct led_classdev *led_cdev) |
8d5c2585 JB |
113 | { |
114 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
115 | struct ieee80211_local, | |
116 | radio_led); | |
117 | ||
118 | atomic_inc(&local->radio_led_active); | |
2282e125 UKK |
119 | |
120 | return 0; | |
8d5c2585 JB |
121 | } |
122 | ||
123 | static void ieee80211_radio_led_deactivate(struct led_classdev *led_cdev) | |
124 | { | |
125 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
126 | struct ieee80211_local, | |
127 | radio_led); | |
128 | ||
129 | atomic_dec(&local->radio_led_active); | |
130 | } | |
131 | ||
2282e125 | 132 | static int ieee80211_tpt_led_activate(struct led_classdev *led_cdev) |
8d5c2585 JB |
133 | { |
134 | struct ieee80211_local *local = container_of(led_cdev->trigger, | |
135 | struct ieee80211_local, | |
136 | tpt_led); | |
137 | ||
138 | atomic_inc(&local->tpt_led_active); | |
2282e125 UKK |
139 | |
140 | return 0; | |
cdcb006f ID |
141 | } |
142 | ||
8d5c2585 | 143 | static void ieee80211_tpt_led_deactivate(struct led_classdev *led_cdev) |
fe67c913 | 144 | { |
8d5c2585 JB |
145 | struct ieee80211_local *local = container_of(led_cdev->trigger, |
146 | struct ieee80211_local, | |
147 | tpt_led); | |
148 | ||
149 | atomic_dec(&local->tpt_led_active); | |
fe67c913 JB |
150 | } |
151 | ||
f0706e82 JB |
152 | void ieee80211_led_init(struct ieee80211_local *local) |
153 | { | |
8d5c2585 JB |
154 | atomic_set(&local->rx_led_active, 0); |
155 | local->rx_led.activate = ieee80211_rx_led_activate; | |
156 | local->rx_led.deactivate = ieee80211_rx_led_deactivate; | |
157 | if (local->rx_led.name && led_trigger_register(&local->rx_led)) { | |
158 | kfree(local->rx_led.name); | |
159 | local->rx_led.name = NULL; | |
f0706e82 JB |
160 | } |
161 | ||
8d5c2585 JB |
162 | atomic_set(&local->tx_led_active, 0); |
163 | local->tx_led.activate = ieee80211_tx_led_activate; | |
164 | local->tx_led.deactivate = ieee80211_tx_led_deactivate; | |
165 | if (local->tx_led.name && led_trigger_register(&local->tx_led)) { | |
166 | kfree(local->tx_led.name); | |
167 | local->tx_led.name = NULL; | |
47f0c502 MB |
168 | } |
169 | ||
8d5c2585 JB |
170 | atomic_set(&local->assoc_led_active, 0); |
171 | local->assoc_led.activate = ieee80211_assoc_led_activate; | |
172 | local->assoc_led.deactivate = ieee80211_assoc_led_deactivate; | |
173 | if (local->assoc_led.name && led_trigger_register(&local->assoc_led)) { | |
174 | kfree(local->assoc_led.name); | |
175 | local->assoc_led.name = NULL; | |
f0706e82 | 176 | } |
cdcb006f | 177 | |
8d5c2585 JB |
178 | atomic_set(&local->radio_led_active, 0); |
179 | local->radio_led.activate = ieee80211_radio_led_activate; | |
180 | local->radio_led.deactivate = ieee80211_radio_led_deactivate; | |
181 | if (local->radio_led.name && led_trigger_register(&local->radio_led)) { | |
182 | kfree(local->radio_led.name); | |
183 | local->radio_led.name = NULL; | |
cdcb006f | 184 | } |
e1e54068 | 185 | |
8d5c2585 | 186 | atomic_set(&local->tpt_led_active, 0); |
e1e54068 | 187 | if (local->tpt_led_trigger) { |
8d5c2585 JB |
188 | local->tpt_led.activate = ieee80211_tpt_led_activate; |
189 | local->tpt_led.deactivate = ieee80211_tpt_led_deactivate; | |
190 | if (led_trigger_register(&local->tpt_led)) { | |
e1e54068 JB |
191 | kfree(local->tpt_led_trigger); |
192 | local->tpt_led_trigger = NULL; | |
193 | } | |
194 | } | |
f0706e82 JB |
195 | } |
196 | ||
197 | void ieee80211_led_exit(struct ieee80211_local *local) | |
198 | { | |
8d5c2585 JB |
199 | if (local->radio_led.name) |
200 | led_trigger_unregister(&local->radio_led); | |
201 | if (local->assoc_led.name) | |
202 | led_trigger_unregister(&local->assoc_led); | |
203 | if (local->tx_led.name) | |
204 | led_trigger_unregister(&local->tx_led); | |
205 | if (local->rx_led.name) | |
206 | led_trigger_unregister(&local->rx_led); | |
e1e54068 JB |
207 | |
208 | if (local->tpt_led_trigger) { | |
8d5c2585 | 209 | led_trigger_unregister(&local->tpt_led); |
e1e54068 JB |
210 | kfree(local->tpt_led_trigger); |
211 | } | |
f0706e82 JB |
212 | } |
213 | ||
f5c4ae07 | 214 | const char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw) |
cdcb006f ID |
215 | { |
216 | struct ieee80211_local *local = hw_to_local(hw); | |
217 | ||
8d5c2585 | 218 | return local->radio_led.name; |
cdcb006f ID |
219 | } |
220 | EXPORT_SYMBOL(__ieee80211_get_radio_led_name); | |
221 | ||
f5c4ae07 | 222 | const char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) |
47f0c502 MB |
223 | { |
224 | struct ieee80211_local *local = hw_to_local(hw); | |
225 | ||
8d5c2585 | 226 | return local->assoc_led.name; |
47f0c502 MB |
227 | } |
228 | EXPORT_SYMBOL(__ieee80211_get_assoc_led_name); | |
229 | ||
f5c4ae07 | 230 | const char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw) |
f0706e82 JB |
231 | { |
232 | struct ieee80211_local *local = hw_to_local(hw); | |
233 | ||
8d5c2585 | 234 | return local->tx_led.name; |
f0706e82 JB |
235 | } |
236 | EXPORT_SYMBOL(__ieee80211_get_tx_led_name); | |
237 | ||
f5c4ae07 | 238 | const char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw) |
f0706e82 JB |
239 | { |
240 | struct ieee80211_local *local = hw_to_local(hw); | |
241 | ||
8d5c2585 | 242 | return local->rx_led.name; |
f0706e82 JB |
243 | } |
244 | EXPORT_SYMBOL(__ieee80211_get_rx_led_name); | |
e1e54068 JB |
245 | |
246 | static unsigned long tpt_trig_traffic(struct ieee80211_local *local, | |
247 | struct tpt_led_trigger *tpt_trig) | |
248 | { | |
249 | unsigned long traffic, delta; | |
250 | ||
251 | traffic = tpt_trig->tx_bytes + tpt_trig->rx_bytes; | |
252 | ||
253 | delta = traffic - tpt_trig->prev_traffic; | |
254 | tpt_trig->prev_traffic = traffic; | |
255 | return DIV_ROUND_UP(delta, 1024 / 8); | |
256 | } | |
257 | ||
34f11cd3 | 258 | static void tpt_trig_timer(struct timer_list *t) |
e1e54068 | 259 | { |
34f11cd3 KC |
260 | struct tpt_led_trigger *tpt_trig = from_timer(tpt_trig, t, timer); |
261 | struct ieee80211_local *local = tpt_trig->local; | |
e1e54068 JB |
262 | unsigned long on, off, tpt; |
263 | int i; | |
264 | ||
265 | if (!tpt_trig->running) | |
266 | return; | |
267 | ||
268 | mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ)); | |
269 | ||
270 | tpt = tpt_trig_traffic(local, tpt_trig); | |
271 | ||
272 | /* default to just solid on */ | |
273 | on = 1; | |
274 | off = 0; | |
275 | ||
276 | for (i = tpt_trig->blink_table_len - 1; i >= 0; i--) { | |
277 | if (tpt_trig->blink_table[i].throughput < 0 || | |
278 | tpt > tpt_trig->blink_table[i].throughput) { | |
279 | off = tpt_trig->blink_table[i].blink_time / 2; | |
280 | on = tpt_trig->blink_table[i].blink_time - off; | |
281 | break; | |
282 | } | |
283 | } | |
284 | ||
e298d8a3 | 285 | led_trigger_blink(&local->tpt_led, on, off); |
e1e54068 JB |
286 | } |
287 | ||
f5c4ae07 JB |
288 | const char * |
289 | __ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, | |
290 | unsigned int flags, | |
291 | const struct ieee80211_tpt_blink *blink_table, | |
292 | unsigned int blink_table_len) | |
e1e54068 JB |
293 | { |
294 | struct ieee80211_local *local = hw_to_local(hw); | |
295 | struct tpt_led_trigger *tpt_trig; | |
296 | ||
297 | if (WARN_ON(local->tpt_led_trigger)) | |
298 | return NULL; | |
299 | ||
300 | tpt_trig = kzalloc(sizeof(struct tpt_led_trigger), GFP_KERNEL); | |
301 | if (!tpt_trig) | |
302 | return NULL; | |
303 | ||
304 | snprintf(tpt_trig->name, sizeof(tpt_trig->name), | |
305 | "%stpt", wiphy_name(local->hw.wiphy)); | |
306 | ||
8d5c2585 | 307 | local->tpt_led.name = tpt_trig->name; |
e1e54068 JB |
308 | |
309 | tpt_trig->blink_table = blink_table; | |
310 | tpt_trig->blink_table_len = blink_table_len; | |
67408c8c | 311 | tpt_trig->want = flags; |
34f11cd3 | 312 | tpt_trig->local = local; |
e1e54068 | 313 | |
34f11cd3 | 314 | timer_setup(&tpt_trig->timer, tpt_trig_timer, 0); |
e1e54068 JB |
315 | |
316 | local->tpt_led_trigger = tpt_trig; | |
317 | ||
318 | return tpt_trig->name; | |
319 | } | |
320 | EXPORT_SYMBOL(__ieee80211_create_tpt_led_trigger); | |
321 | ||
67408c8c | 322 | static void ieee80211_start_tpt_led_trig(struct ieee80211_local *local) |
e1e54068 JB |
323 | { |
324 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
325 | ||
67408c8c | 326 | if (tpt_trig->running) |
e1e54068 JB |
327 | return; |
328 | ||
329 | /* reset traffic */ | |
330 | tpt_trig_traffic(local, tpt_trig); | |
331 | tpt_trig->running = true; | |
332 | ||
34f11cd3 | 333 | tpt_trig_timer(&tpt_trig->timer); |
e1e54068 JB |
334 | mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ)); |
335 | } | |
336 | ||
67408c8c | 337 | static void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local) |
e1e54068 JB |
338 | { |
339 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
e1e54068 | 340 | |
67408c8c | 341 | if (!tpt_trig->running) |
e1e54068 JB |
342 | return; |
343 | ||
344 | tpt_trig->running = false; | |
345 | del_timer_sync(&tpt_trig->timer); | |
346 | ||
3f9d9725 | 347 | led_trigger_event(&local->tpt_led, LED_OFF); |
e1e54068 | 348 | } |
67408c8c JB |
349 | |
350 | void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local, | |
351 | unsigned int types_on, unsigned int types_off) | |
352 | { | |
353 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
354 | bool allowed; | |
355 | ||
356 | WARN_ON(types_on & types_off); | |
357 | ||
358 | if (!tpt_trig) | |
359 | return; | |
360 | ||
361 | tpt_trig->active &= ~types_off; | |
362 | tpt_trig->active |= types_on; | |
363 | ||
364 | /* | |
365 | * Regardless of wanted state, we shouldn't blink when | |
366 | * the radio is disabled -- this can happen due to some | |
367 | * code ordering issues with __ieee80211_recalc_idle() | |
368 | * being called before the radio is started. | |
369 | */ | |
370 | allowed = tpt_trig->active & IEEE80211_TPT_LEDTRIG_FL_RADIO; | |
371 | ||
372 | if (!allowed || !(tpt_trig->active & tpt_trig->want)) | |
373 | ieee80211_stop_tpt_led_trig(local); | |
374 | else | |
375 | ieee80211_start_tpt_led_trig(local); | |
376 | } |