mac80211: make LED trigger names available early
[linux-2.6.git] / net / mac80211 / led.c
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>
11 #include <linux/slab.h>
12 #include "led.h"
13
14 void ieee80211_led_rx(struct ieee80211_local *local)
15 {
16         if (unlikely(!local->rx_led))
17                 return;
18         if (local->rx_led_counter++ % 2 == 0)
19                 led_trigger_event(local->rx_led, LED_OFF);
20         else
21                 led_trigger_event(local->rx_led, LED_FULL);
22 }
23
24 /* q is 1 if a packet was enqueued, 0 if it has been transmitted */
25 void ieee80211_led_tx(struct ieee80211_local *local, int q)
26 {
27         if (unlikely(!local->tx_led))
28                 return;
29         /* not sure how this is supposed to work ... */
30         local->tx_led_counter += 2*q-1;
31         if (local->tx_led_counter % 2 == 0)
32                 led_trigger_event(local->tx_led, LED_OFF);
33         else
34                 led_trigger_event(local->tx_led, LED_FULL);
35 }
36
37 void ieee80211_led_assoc(struct ieee80211_local *local, bool associated)
38 {
39         if (unlikely(!local->assoc_led))
40                 return;
41         if (associated)
42                 led_trigger_event(local->assoc_led, LED_FULL);
43         else
44                 led_trigger_event(local->assoc_led, LED_OFF);
45 }
46
47 void ieee80211_led_radio(struct ieee80211_local *local, bool enabled)
48 {
49         if (unlikely(!local->radio_led))
50                 return;
51         if (enabled)
52                 led_trigger_event(local->radio_led, LED_FULL);
53         else
54                 led_trigger_event(local->radio_led, LED_OFF);
55 }
56
57 void ieee80211_led_names(struct ieee80211_local *local)
58 {
59         snprintf(local->rx_led_name, sizeof(local->rx_led_name),
60                  "%srx", wiphy_name(local->hw.wiphy));
61         snprintf(local->tx_led_name, sizeof(local->tx_led_name),
62                  "%stx", wiphy_name(local->hw.wiphy));
63         snprintf(local->assoc_led_name, sizeof(local->assoc_led_name),
64                  "%sassoc", wiphy_name(local->hw.wiphy));
65         snprintf(local->radio_led_name, sizeof(local->radio_led_name),
66                  "%sradio", wiphy_name(local->hw.wiphy));
67 }
68
69 void ieee80211_led_init(struct ieee80211_local *local)
70 {
71         local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
72         if (local->rx_led) {
73                 local->rx_led->name = local->rx_led_name;
74                 if (led_trigger_register(local->rx_led)) {
75                         kfree(local->rx_led);
76                         local->rx_led = NULL;
77                 }
78         }
79
80         local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
81         if (local->tx_led) {
82                 local->tx_led->name = local->tx_led_name;
83                 if (led_trigger_register(local->tx_led)) {
84                         kfree(local->tx_led);
85                         local->tx_led = NULL;
86                 }
87         }
88
89         local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
90         if (local->assoc_led) {
91                 local->assoc_led->name = local->assoc_led_name;
92                 if (led_trigger_register(local->assoc_led)) {
93                         kfree(local->assoc_led);
94                         local->assoc_led = NULL;
95                 }
96         }
97
98         local->radio_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
99         if (local->radio_led) {
100                 local->radio_led->name = local->radio_led_name;
101                 if (led_trigger_register(local->radio_led)) {
102                         kfree(local->radio_led);
103                         local->radio_led = NULL;
104                 }
105         }
106 }
107
108 void ieee80211_led_exit(struct ieee80211_local *local)
109 {
110         if (local->radio_led) {
111                 led_trigger_unregister(local->radio_led);
112                 kfree(local->radio_led);
113         }
114         if (local->assoc_led) {
115                 led_trigger_unregister(local->assoc_led);
116                 kfree(local->assoc_led);
117         }
118         if (local->tx_led) {
119                 led_trigger_unregister(local->tx_led);
120                 kfree(local->tx_led);
121         }
122         if (local->rx_led) {
123                 led_trigger_unregister(local->rx_led);
124                 kfree(local->rx_led);
125         }
126 }
127
128 char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw)
129 {
130         struct ieee80211_local *local = hw_to_local(hw);
131
132         return local->radio_led_name;
133 }
134 EXPORT_SYMBOL(__ieee80211_get_radio_led_name);
135
136 char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
137 {
138         struct ieee80211_local *local = hw_to_local(hw);
139
140         return local->assoc_led_name;
141 }
142 EXPORT_SYMBOL(__ieee80211_get_assoc_led_name);
143
144 char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
145 {
146         struct ieee80211_local *local = hw_to_local(hw);
147
148         return local->tx_led_name;
149 }
150 EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
151
152 char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
153 {
154         struct ieee80211_local *local = hw_to_local(hw);
155
156         return local->rx_led_name;
157 }
158 EXPORT_SYMBOL(__ieee80211_get_rx_led_name);