Commit | Line | Data |
---|---|---|
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 JB |
14 | |
15 | void ieee80211_led_rx(struct ieee80211_local *local) | |
16 | { | |
17 | if (unlikely(!local->rx_led)) | |
18 | return; | |
19 | if (local->rx_led_counter++ % 2 == 0) | |
20 | led_trigger_event(local->rx_led, LED_OFF); | |
21 | else | |
22 | led_trigger_event(local->rx_led, LED_FULL); | |
23 | } | |
24 | ||
25 | /* q is 1 if a packet was enqueued, 0 if it has been transmitted */ | |
26 | void ieee80211_led_tx(struct ieee80211_local *local, int q) | |
27 | { | |
28 | if (unlikely(!local->tx_led)) | |
29 | return; | |
30 | /* not sure how this is supposed to work ... */ | |
31 | local->tx_led_counter += 2*q-1; | |
32 | if (local->tx_led_counter % 2 == 0) | |
33 | led_trigger_event(local->tx_led, LED_OFF); | |
34 | else | |
35 | led_trigger_event(local->tx_led, LED_FULL); | |
36 | } | |
37 | ||
47f0c502 MB |
38 | void ieee80211_led_assoc(struct ieee80211_local *local, bool associated) |
39 | { | |
40 | if (unlikely(!local->assoc_led)) | |
41 | return; | |
42 | if (associated) | |
43 | led_trigger_event(local->assoc_led, LED_FULL); | |
44 | else | |
45 | led_trigger_event(local->assoc_led, LED_OFF); | |
46 | } | |
47 | ||
cdcb006f ID |
48 | void ieee80211_led_radio(struct ieee80211_local *local, bool enabled) |
49 | { | |
50 | if (unlikely(!local->radio_led)) | |
51 | return; | |
52 | if (enabled) | |
53 | led_trigger_event(local->radio_led, LED_FULL); | |
54 | else | |
55 | led_trigger_event(local->radio_led, LED_OFF); | |
56 | } | |
57 | ||
fe67c913 JB |
58 | void ieee80211_led_names(struct ieee80211_local *local) |
59 | { | |
60 | snprintf(local->rx_led_name, sizeof(local->rx_led_name), | |
61 | "%srx", wiphy_name(local->hw.wiphy)); | |
62 | snprintf(local->tx_led_name, sizeof(local->tx_led_name), | |
63 | "%stx", wiphy_name(local->hw.wiphy)); | |
64 | snprintf(local->assoc_led_name, sizeof(local->assoc_led_name), | |
65 | "%sassoc", wiphy_name(local->hw.wiphy)); | |
66 | snprintf(local->radio_led_name, sizeof(local->radio_led_name), | |
67 | "%sradio", wiphy_name(local->hw.wiphy)); | |
68 | } | |
69 | ||
f0706e82 JB |
70 | void ieee80211_led_init(struct ieee80211_local *local) |
71 | { | |
72 | local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); | |
47f0c502 | 73 | if (local->rx_led) { |
47f0c502 MB |
74 | local->rx_led->name = local->rx_led_name; |
75 | if (led_trigger_register(local->rx_led)) { | |
76 | kfree(local->rx_led); | |
77 | local->rx_led = NULL; | |
78 | } | |
f0706e82 JB |
79 | } |
80 | ||
81 | local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); | |
47f0c502 | 82 | if (local->tx_led) { |
47f0c502 MB |
83 | local->tx_led->name = local->tx_led_name; |
84 | if (led_trigger_register(local->tx_led)) { | |
85 | kfree(local->tx_led); | |
86 | local->tx_led = NULL; | |
87 | } | |
88 | } | |
89 | ||
90 | local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); | |
91 | if (local->assoc_led) { | |
47f0c502 MB |
92 | local->assoc_led->name = local->assoc_led_name; |
93 | if (led_trigger_register(local->assoc_led)) { | |
94 | kfree(local->assoc_led); | |
95 | local->assoc_led = NULL; | |
96 | } | |
f0706e82 | 97 | } |
cdcb006f ID |
98 | |
99 | local->radio_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); | |
100 | if (local->radio_led) { | |
cdcb006f ID |
101 | local->radio_led->name = local->radio_led_name; |
102 | if (led_trigger_register(local->radio_led)) { | |
103 | kfree(local->radio_led); | |
104 | local->radio_led = NULL; | |
105 | } | |
106 | } | |
e1e54068 JB |
107 | |
108 | if (local->tpt_led_trigger) { | |
109 | if (led_trigger_register(&local->tpt_led_trigger->trig)) { | |
110 | kfree(local->tpt_led_trigger); | |
111 | local->tpt_led_trigger = NULL; | |
112 | } | |
113 | } | |
f0706e82 JB |
114 | } |
115 | ||
116 | void ieee80211_led_exit(struct ieee80211_local *local) | |
117 | { | |
cdcb006f ID |
118 | if (local->radio_led) { |
119 | led_trigger_unregister(local->radio_led); | |
120 | kfree(local->radio_led); | |
121 | } | |
47f0c502 MB |
122 | if (local->assoc_led) { |
123 | led_trigger_unregister(local->assoc_led); | |
124 | kfree(local->assoc_led); | |
125 | } | |
f0706e82 JB |
126 | if (local->tx_led) { |
127 | led_trigger_unregister(local->tx_led); | |
128 | kfree(local->tx_led); | |
129 | } | |
130 | if (local->rx_led) { | |
131 | led_trigger_unregister(local->rx_led); | |
132 | kfree(local->rx_led); | |
133 | } | |
e1e54068 JB |
134 | |
135 | if (local->tpt_led_trigger) { | |
136 | led_trigger_unregister(&local->tpt_led_trigger->trig); | |
137 | kfree(local->tpt_led_trigger); | |
138 | } | |
f0706e82 JB |
139 | } |
140 | ||
cdcb006f ID |
141 | char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw) |
142 | { | |
143 | struct ieee80211_local *local = hw_to_local(hw); | |
144 | ||
fe67c913 | 145 | return local->radio_led_name; |
cdcb006f ID |
146 | } |
147 | EXPORT_SYMBOL(__ieee80211_get_radio_led_name); | |
148 | ||
47f0c502 MB |
149 | char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) |
150 | { | |
151 | struct ieee80211_local *local = hw_to_local(hw); | |
152 | ||
fe67c913 | 153 | return local->assoc_led_name; |
47f0c502 MB |
154 | } |
155 | EXPORT_SYMBOL(__ieee80211_get_assoc_led_name); | |
156 | ||
f0706e82 JB |
157 | char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw) |
158 | { | |
159 | struct ieee80211_local *local = hw_to_local(hw); | |
160 | ||
fe67c913 | 161 | return local->tx_led_name; |
f0706e82 JB |
162 | } |
163 | EXPORT_SYMBOL(__ieee80211_get_tx_led_name); | |
164 | ||
165 | char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw) | |
166 | { | |
167 | struct ieee80211_local *local = hw_to_local(hw); | |
168 | ||
fe67c913 | 169 | return local->rx_led_name; |
f0706e82 JB |
170 | } |
171 | EXPORT_SYMBOL(__ieee80211_get_rx_led_name); | |
e1e54068 JB |
172 | |
173 | static unsigned long tpt_trig_traffic(struct ieee80211_local *local, | |
174 | struct tpt_led_trigger *tpt_trig) | |
175 | { | |
176 | unsigned long traffic, delta; | |
177 | ||
178 | traffic = tpt_trig->tx_bytes + tpt_trig->rx_bytes; | |
179 | ||
180 | delta = traffic - tpt_trig->prev_traffic; | |
181 | tpt_trig->prev_traffic = traffic; | |
182 | return DIV_ROUND_UP(delta, 1024 / 8); | |
183 | } | |
184 | ||
185 | static void tpt_trig_timer(unsigned long data) | |
186 | { | |
187 | struct ieee80211_local *local = (void *)data; | |
188 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
189 | struct led_classdev *led_cdev; | |
190 | unsigned long on, off, tpt; | |
191 | int i; | |
192 | ||
193 | if (!tpt_trig->running) | |
194 | return; | |
195 | ||
196 | mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ)); | |
197 | ||
198 | tpt = tpt_trig_traffic(local, tpt_trig); | |
199 | ||
200 | /* default to just solid on */ | |
201 | on = 1; | |
202 | off = 0; | |
203 | ||
204 | for (i = tpt_trig->blink_table_len - 1; i >= 0; i--) { | |
205 | if (tpt_trig->blink_table[i].throughput < 0 || | |
206 | tpt > tpt_trig->blink_table[i].throughput) { | |
207 | off = tpt_trig->blink_table[i].blink_time / 2; | |
208 | on = tpt_trig->blink_table[i].blink_time - off; | |
209 | break; | |
210 | } | |
211 | } | |
212 | ||
213 | read_lock(&tpt_trig->trig.leddev_list_lock); | |
214 | list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list) | |
215 | led_blink_set(led_cdev, &on, &off); | |
216 | read_unlock(&tpt_trig->trig.leddev_list_lock); | |
217 | } | |
218 | ||
06778b1c JB |
219 | char *__ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, |
220 | unsigned int flags, | |
e1e54068 JB |
221 | const struct ieee80211_tpt_blink *blink_table, |
222 | unsigned int blink_table_len) | |
223 | { | |
224 | struct ieee80211_local *local = hw_to_local(hw); | |
225 | struct tpt_led_trigger *tpt_trig; | |
226 | ||
227 | if (WARN_ON(local->tpt_led_trigger)) | |
228 | return NULL; | |
229 | ||
230 | tpt_trig = kzalloc(sizeof(struct tpt_led_trigger), GFP_KERNEL); | |
231 | if (!tpt_trig) | |
232 | return NULL; | |
233 | ||
234 | snprintf(tpt_trig->name, sizeof(tpt_trig->name), | |
235 | "%stpt", wiphy_name(local->hw.wiphy)); | |
236 | ||
237 | tpt_trig->trig.name = tpt_trig->name; | |
238 | ||
239 | tpt_trig->blink_table = blink_table; | |
240 | tpt_trig->blink_table_len = blink_table_len; | |
67408c8c | 241 | tpt_trig->want = flags; |
e1e54068 JB |
242 | |
243 | setup_timer(&tpt_trig->timer, tpt_trig_timer, (unsigned long)local); | |
244 | ||
245 | local->tpt_led_trigger = tpt_trig; | |
246 | ||
247 | return tpt_trig->name; | |
248 | } | |
249 | EXPORT_SYMBOL(__ieee80211_create_tpt_led_trigger); | |
250 | ||
67408c8c | 251 | static void ieee80211_start_tpt_led_trig(struct ieee80211_local *local) |
e1e54068 JB |
252 | { |
253 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
254 | ||
67408c8c | 255 | if (tpt_trig->running) |
e1e54068 JB |
256 | return; |
257 | ||
258 | /* reset traffic */ | |
259 | tpt_trig_traffic(local, tpt_trig); | |
260 | tpt_trig->running = true; | |
261 | ||
262 | tpt_trig_timer((unsigned long)local); | |
263 | mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ)); | |
264 | } | |
265 | ||
67408c8c | 266 | static void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local) |
e1e54068 JB |
267 | { |
268 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
269 | struct led_classdev *led_cdev; | |
270 | ||
67408c8c | 271 | if (!tpt_trig->running) |
e1e54068 JB |
272 | return; |
273 | ||
274 | tpt_trig->running = false; | |
275 | del_timer_sync(&tpt_trig->timer); | |
276 | ||
277 | read_lock(&tpt_trig->trig.leddev_list_lock); | |
278 | list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list) | |
19cd67e2 | 279 | led_set_brightness(led_cdev, LED_OFF); |
e1e54068 JB |
280 | read_unlock(&tpt_trig->trig.leddev_list_lock); |
281 | } | |
67408c8c JB |
282 | |
283 | void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local, | |
284 | unsigned int types_on, unsigned int types_off) | |
285 | { | |
286 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; | |
287 | bool allowed; | |
288 | ||
289 | WARN_ON(types_on & types_off); | |
290 | ||
291 | if (!tpt_trig) | |
292 | return; | |
293 | ||
294 | tpt_trig->active &= ~types_off; | |
295 | tpt_trig->active |= types_on; | |
296 | ||
297 | /* | |
298 | * Regardless of wanted state, we shouldn't blink when | |
299 | * the radio is disabled -- this can happen due to some | |
300 | * code ordering issues with __ieee80211_recalc_idle() | |
301 | * being called before the radio is started. | |
302 | */ | |
303 | allowed = tpt_trig->active & IEEE80211_TPT_LEDTRIG_FL_RADIO; | |
304 | ||
305 | if (!allowed || !(tpt_trig->active & tpt_trig->want)) | |
306 | ieee80211_stop_tpt_led_trig(local); | |
307 | else | |
308 | ieee80211_start_tpt_led_trig(local); | |
309 | } |