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 | |
e47f2509 FB |
15 | #define MAC80211_BLINK_DELAY 50 /* ms */ |
16 | ||
f0706e82 JB |
17 | void ieee80211_led_rx(struct ieee80211_local *local) |
18 | { | |
e47f2509 | 19 | unsigned long led_delay = MAC80211_BLINK_DELAY; |
f0706e82 JB |
20 | if (unlikely(!local->rx_led)) |
21 | return; | |
e47f2509 | 22 | led_trigger_blink_oneshot(local->rx_led, &led_delay, &led_delay, 0); |
f0706e82 JB |
23 | } |
24 | ||
e47f2509 | 25 | void ieee80211_led_tx(struct ieee80211_local *local) |
f0706e82 | 26 | { |
e47f2509 | 27 | unsigned long led_delay = MAC80211_BLINK_DELAY; |
f0706e82 JB |
28 | if (unlikely(!local->tx_led)) |
29 | return; | |
e47f2509 | 30 | led_trigger_blink_oneshot(local->tx_led, &led_delay, &led_delay, 0); |
f0706e82 JB |
31 | } |
32 | ||
47f0c502 MB |
33 | void ieee80211_led_assoc(struct ieee80211_local *local, bool associated) |
34 | { | |
35 | if (unlikely(!local->assoc_led)) | |
36 | return; | |
37 | if (associated) | |
38 | led_trigger_event(local->assoc_led, LED_FULL); | |
39 | else | |
40 | led_trigger_event(local->assoc_led, LED_OFF); | |
41 | } | |
42 | ||
cdcb006f ID |
43 | void ieee80211_led_radio(struct ieee80211_local *local, bool enabled) |
44 | { | |
45 | if (unlikely(!local->radio_led)) | |
46 | return; | |
47 | if (enabled) | |
48 | led_trigger_event(local->radio_led, LED_FULL); | |
49 | else | |
50 | led_trigger_event(local->radio_led, LED_OFF); | |
51 | } | |
52 | ||
fe67c913 JB |
53 | void ieee80211_led_names(struct ieee80211_local *local) |
54 | { | |
55 | snprintf(local->rx_led_name, sizeof(local->rx_led_name), | |
56 | "%srx", wiphy_name(local->hw.wiphy)); | |
57 | snprintf(local->tx_led_name, sizeof(local->tx_led_name), | |
58 | "%stx", wiphy_name(local->hw.wiphy)); | |
59 | snprintf(local->assoc_led_name, sizeof(local->assoc_led_name), | |
60 | "%sassoc", wiphy_name(local->hw.wiphy)); | |
61 | snprintf(local->radio_led_name, sizeof(local->radio_led_name), | |
62 | "%sradio", wiphy_name(local->hw.wiphy)); | |
63 | } | |
64 | ||
f0706e82 JB |
65 | void ieee80211_led_init(struct ieee80211_local *local) |
66 | { | |
67 | local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); | |
47f0c502 | 68 | if (local->rx_led) { |
47f0c502 MB |
69 | local->rx_led->name = local->rx_led_name; |
70 | if (led_trigger_register(local->rx_led)) { | |
71 | kfree(local->rx_led); | |
72 | local->rx_led = NULL; | |
73 | } | |
f0706e82 JB |
74 | } |
75 | ||
76 | local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); | |
47f0c502 | 77 | if (local->tx_led) { |
47f0c502 MB |
78 | local->tx_led->name = local->tx_led_name; |
79 | if (led_trigger_register(local->tx_led)) { | |
80 | kfree(local->tx_led); | |
81 | local->tx_led = NULL; | |
82 | } | |
83 | } | |
84 | ||
85 | local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); | |
86 | if (local->assoc_led) { | |
47f0c502 MB |
87 | local->assoc_led->name = local->assoc_led_name; |
88 | if (led_trigger_register(local->assoc_led)) { | |
89 | kfree(local->assoc_led); | |
90 | local->assoc_led = NULL; | |
91 | } | |
f0706e82 | 92 | } |
cdcb006f ID |
93 | |
94 | local->radio_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); | |
95 | if (local->radio_led) { | |
cdcb006f ID |
96 | local->radio_led->name = local->radio_led_name; |
97 | if (led_trigger_register(local->radio_led)) { | |
98 | kfree(local->radio_led); | |
99 | local->radio_led = NULL; | |
100 | } | |
101 | } | |
e1e54068 JB |
102 | |
103 | if (local->tpt_led_trigger) { | |
104 | if (led_trigger_register(&local->tpt_led_trigger->trig)) { | |
105 | kfree(local->tpt_led_trigger); | |
106 | local->tpt_led_trigger = NULL; | |
107 | } | |
108 | } | |
f0706e82 JB |
109 | } |
110 | ||
111 | void ieee80211_led_exit(struct ieee80211_local *local) | |
112 | { | |
cdcb006f ID |
113 | if (local->radio_led) { |
114 | led_trigger_unregister(local->radio_led); | |
115 | kfree(local->radio_led); | |
116 | } | |
47f0c502 MB |
117 | if (local->assoc_led) { |
118 | led_trigger_unregister(local->assoc_led); | |
119 | kfree(local->assoc_led); | |
120 | } | |
f0706e82 JB |
121 | if (local->tx_led) { |
122 | led_trigger_unregister(local->tx_led); | |
123 | kfree(local->tx_led); | |
124 | } | |
125 | if (local->rx_led) { | |
126 | led_trigger_unregister(local->rx_led); | |
127 | kfree(local->rx_led); | |
128 | } | |
e1e54068 JB |
129 | |
130 | if (local->tpt_led_trigger) { | |
131 | led_trigger_unregister(&local->tpt_led_trigger->trig); | |
132 | kfree(local->tpt_led_trigger); | |
133 | } | |
f0706e82 JB |
134 | } |
135 | ||
cdcb006f ID |
136 | char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw) |
137 | { | |
138 | struct ieee80211_local *local = hw_to_local(hw); | |
139 | ||
fe67c913 | 140 | return local->radio_led_name; |
cdcb006f ID |
141 | } |
142 | EXPORT_SYMBOL(__ieee80211_get_radio_led_name); | |
143 | ||
47f0c502 MB |
144 | char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) |
145 | { | |
146 | struct ieee80211_local *local = hw_to_local(hw); | |
147 | ||
fe67c913 | 148 | return local->assoc_led_name; |
47f0c502 MB |
149 | } |
150 | EXPORT_SYMBOL(__ieee80211_get_assoc_led_name); | |
151 | ||
f0706e82 JB |
152 | char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw) |
153 | { | |
154 | struct ieee80211_local *local = hw_to_local(hw); | |
155 | ||
fe67c913 | 156 | return local->tx_led_name; |
f0706e82 JB |
157 | } |
158 | EXPORT_SYMBOL(__ieee80211_get_tx_led_name); | |
159 | ||
160 | char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw) | |
161 | { | |
162 | struct ieee80211_local *local = hw_to_local(hw); | |
163 | ||
fe67c913 | 164 | return local->rx_led_name; |
f0706e82 JB |
165 | } |
166 | EXPORT_SYMBOL(__ieee80211_get_rx_led_name); | |
e1e54068 JB |
167 | |
168 | static unsigned long tpt_trig_traffic(struct ieee80211_local *local, | |
169 | struct tpt_led_trigger *tpt_trig) | |
170 | { | |
171 | unsigned long traffic, delta; | |
172 | ||
173 | traffic = tpt_trig->tx_bytes + tpt_trig->rx_bytes; | |
174 | ||
175 | delta = traffic - tpt_trig->prev_traffic; | |
176 | tpt_trig->prev_traffic = traffic; | |
177 | return DIV_ROUND_UP(delta, 1024 / 8); | |
178 | } | |
179 | ||
180 | static void tpt_trig_timer(unsigned long data) | |
181 | { | |
182 | struct ieee80211_local *local = (void *)data; | |
183 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
184 | struct led_classdev *led_cdev; | |
185 | unsigned long on, off, tpt; | |
186 | int i; | |
187 | ||
188 | if (!tpt_trig->running) | |
189 | return; | |
190 | ||
191 | mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ)); | |
192 | ||
193 | tpt = tpt_trig_traffic(local, tpt_trig); | |
194 | ||
195 | /* default to just solid on */ | |
196 | on = 1; | |
197 | off = 0; | |
198 | ||
199 | for (i = tpt_trig->blink_table_len - 1; i >= 0; i--) { | |
200 | if (tpt_trig->blink_table[i].throughput < 0 || | |
201 | tpt > tpt_trig->blink_table[i].throughput) { | |
202 | off = tpt_trig->blink_table[i].blink_time / 2; | |
203 | on = tpt_trig->blink_table[i].blink_time - off; | |
204 | break; | |
205 | } | |
206 | } | |
207 | ||
208 | read_lock(&tpt_trig->trig.leddev_list_lock); | |
209 | list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list) | |
210 | led_blink_set(led_cdev, &on, &off); | |
211 | read_unlock(&tpt_trig->trig.leddev_list_lock); | |
212 | } | |
213 | ||
06778b1c JB |
214 | char *__ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, |
215 | unsigned int flags, | |
e1e54068 JB |
216 | const struct ieee80211_tpt_blink *blink_table, |
217 | unsigned int blink_table_len) | |
218 | { | |
219 | struct ieee80211_local *local = hw_to_local(hw); | |
220 | struct tpt_led_trigger *tpt_trig; | |
221 | ||
222 | if (WARN_ON(local->tpt_led_trigger)) | |
223 | return NULL; | |
224 | ||
225 | tpt_trig = kzalloc(sizeof(struct tpt_led_trigger), GFP_KERNEL); | |
226 | if (!tpt_trig) | |
227 | return NULL; | |
228 | ||
229 | snprintf(tpt_trig->name, sizeof(tpt_trig->name), | |
230 | "%stpt", wiphy_name(local->hw.wiphy)); | |
231 | ||
232 | tpt_trig->trig.name = tpt_trig->name; | |
233 | ||
234 | tpt_trig->blink_table = blink_table; | |
235 | tpt_trig->blink_table_len = blink_table_len; | |
67408c8c | 236 | tpt_trig->want = flags; |
e1e54068 JB |
237 | |
238 | setup_timer(&tpt_trig->timer, tpt_trig_timer, (unsigned long)local); | |
239 | ||
240 | local->tpt_led_trigger = tpt_trig; | |
241 | ||
242 | return tpt_trig->name; | |
243 | } | |
244 | EXPORT_SYMBOL(__ieee80211_create_tpt_led_trigger); | |
245 | ||
67408c8c | 246 | static void ieee80211_start_tpt_led_trig(struct ieee80211_local *local) |
e1e54068 JB |
247 | { |
248 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
249 | ||
67408c8c | 250 | if (tpt_trig->running) |
e1e54068 JB |
251 | return; |
252 | ||
253 | /* reset traffic */ | |
254 | tpt_trig_traffic(local, tpt_trig); | |
255 | tpt_trig->running = true; | |
256 | ||
257 | tpt_trig_timer((unsigned long)local); | |
258 | mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ)); | |
259 | } | |
260 | ||
67408c8c | 261 | static void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local) |
e1e54068 JB |
262 | { |
263 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
264 | struct led_classdev *led_cdev; | |
265 | ||
67408c8c | 266 | if (!tpt_trig->running) |
e1e54068 JB |
267 | return; |
268 | ||
269 | tpt_trig->running = false; | |
270 | del_timer_sync(&tpt_trig->timer); | |
271 | ||
272 | read_lock(&tpt_trig->trig.leddev_list_lock); | |
273 | list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list) | |
19cd67e2 | 274 | led_set_brightness(led_cdev, LED_OFF); |
e1e54068 JB |
275 | read_unlock(&tpt_trig->trig.leddev_list_lock); |
276 | } | |
67408c8c JB |
277 | |
278 | void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local, | |
279 | unsigned int types_on, unsigned int types_off) | |
280 | { | |
281 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
282 | bool allowed; | |
283 | ||
284 | WARN_ON(types_on & types_off); | |
285 | ||
286 | if (!tpt_trig) | |
287 | return; | |
288 | ||
289 | tpt_trig->active &= ~types_off; | |
290 | tpt_trig->active |= types_on; | |
291 | ||
292 | /* | |
293 | * Regardless of wanted state, we shouldn't blink when | |
294 | * the radio is disabled -- this can happen due to some | |
295 | * code ordering issues with __ieee80211_recalc_idle() | |
296 | * being called before the radio is started. | |
297 | */ | |
298 | allowed = tpt_trig->active & IEEE80211_TPT_LEDTRIG_FL_RADIO; | |
299 | ||
300 | if (!allowed || !(tpt_trig->active & tpt_trig->want)) | |
301 | ieee80211_stop_tpt_led_trig(local); | |
302 | else | |
303 | ieee80211_start_tpt_led_trig(local); | |
304 | } |