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Diffstat (limited to 'net/mac80211/ieee80211_led.c')
-rw-r--r--net/mac80211/ieee80211_led.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/net/mac80211/ieee80211_led.c b/net/mac80211/ieee80211_led.c
new file mode 100644
index 000000000000..719d75b20707
--- /dev/null
+++ b/net/mac80211/ieee80211_led.c
@@ -0,0 +1,91 @@
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 "ieee80211_led.h"
12
13void ieee80211_led_rx(struct ieee80211_local *local)
14{
15 if (unlikely(!local->rx_led))
16 return;
17 if (local->rx_led_counter++ % 2 == 0)
18 led_trigger_event(local->rx_led, LED_OFF);
19 else
20 led_trigger_event(local->rx_led, LED_FULL);
21}
22
23/* q is 1 if a packet was enqueued, 0 if it has been transmitted */
24void ieee80211_led_tx(struct ieee80211_local *local, int q)
25{
26 if (unlikely(!local->tx_led))
27 return;
28 /* not sure how this is supposed to work ... */
29 local->tx_led_counter += 2*q-1;
30 if (local->tx_led_counter % 2 == 0)
31 led_trigger_event(local->tx_led, LED_OFF);
32 else
33 led_trigger_event(local->tx_led, LED_FULL);
34}
35
36void ieee80211_led_init(struct ieee80211_local *local)
37{
38 local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
39 if (!local->rx_led)
40 return;
41 snprintf(local->rx_led_name, sizeof(local->rx_led_name),
42 "%srx", wiphy_name(local->hw.wiphy));
43 local->rx_led->name = local->rx_led_name;
44 if (led_trigger_register(local->rx_led)) {
45 kfree(local->rx_led);
46 local->rx_led = NULL;
47 }
48
49 local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
50 if (!local->tx_led)
51 return;
52 snprintf(local->tx_led_name, sizeof(local->tx_led_name),
53 "%stx", wiphy_name(local->hw.wiphy));
54 local->tx_led->name = local->tx_led_name;
55 if (led_trigger_register(local->tx_led)) {
56 kfree(local->tx_led);
57 local->tx_led = NULL;
58 }
59}
60
61void ieee80211_led_exit(struct ieee80211_local *local)
62{
63 if (local->tx_led) {
64 led_trigger_unregister(local->tx_led);
65 kfree(local->tx_led);
66 }
67 if (local->rx_led) {
68 led_trigger_unregister(local->rx_led);
69 kfree(local->rx_led);
70 }
71}
72
73char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
74{
75 struct ieee80211_local *local = hw_to_local(hw);
76
77 if (local->tx_led)
78 return local->tx_led_name;
79 return NULL;
80}
81EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
82
83char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
84{
85 struct ieee80211_local *local = hw_to_local(hw);
86
87 if (local->rx_led)
88 return local->rx_led_name;
89 return NULL;
90}
91EXPORT_SYMBOL(__ieee80211_get_rx_led_name);