summaryrefslogtreecommitdiff
path: root/net/mac80211/led.c
blob: 063aad944246678d7ebaa4392b42abbb07a4a055 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
/*
 * Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

/* just for IFNAMSIZ */
#include <linux/if.h>
#include <linux/slab.h>
#include "led.h"

void ieee80211_led_rx(struct ieee80211_local *local)
{
	if (unlikely(!local->rx_led))
		return;
	if (local->rx_led_counter++ % 2 == 0)
		led_trigger_event(local->rx_led, LED_OFF);
	else
		led_trigger_event(local->rx_led, LED_FULL);
}

/* q is 1 if a packet was enqueued, 0 if it has been transmitted */
void ieee80211_led_tx(struct ieee80211_local *local, int q)
{
	if (unlikely(!local->tx_led))
		return;
	/* not sure how this is supposed to work ... */
	local->tx_led_counter += 2*q-1;
	if (local->tx_led_counter % 2 == 0)
		led_trigger_event(local->tx_led, LED_OFF);
	else
		led_trigger_event(local->tx_led, LED_FULL);
}

void ieee80211_led_assoc(struct ieee80211_local *local, bool associated)
{
	if (unlikely(!local->assoc_led))
		return;
	if (associated)
		led_trigger_event(local->assoc_led, LED_FULL);
	else
		led_trigger_event(local->assoc_led, LED_OFF);
}

void ieee80211_led_radio(struct ieee80211_local *local, bool enabled)
{
	if (unlikely(!local->radio_led))
		return;
	if (enabled)
		led_trigger_event(local->radio_led, LED_FULL);
	else
		led_trigger_event(local->radio_led, LED_OFF);
}

void ieee80211_led_init(struct ieee80211_local *local)
{
	local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
	if (local->rx_led) {
		snprintf(local->rx_led_name, sizeof(local->rx_led_name),
			 "%srx", wiphy_name(local->hw.wiphy));
		local->rx_led->name = local->rx_led_name;
		if (led_trigger_register(local->rx_led)) {
			kfree(local->rx_led);
			local->rx_led = NULL;
		}
	}

	local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
	if (local->tx_led) {
		snprintf(local->tx_led_name, sizeof(local->tx_led_name),
			 "%stx", wiphy_name(local->hw.wiphy));
		local->tx_led->name = local->tx_led_name;
		if (led_trigger_register(local->tx_led)) {
			kfree(local->tx_led);
			local->tx_led = NULL;
		}
	}

	local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
	if (local->assoc_led) {
		snprintf(local->assoc_led_name, sizeof(local->assoc_led_name),
			 "%sassoc", wiphy_name(local->hw.wiphy));
		local->assoc_led->name = local->assoc_led_name;
		if (led_trigger_register(local->assoc_led)) {
			kfree(local->assoc_led);
			local->assoc_led = NULL;
		}
	}

	local->radio_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
	if (local->radio_led) {
		snprintf(local->radio_led_name, sizeof(local->radio_led_name),
			 "%sradio", wiphy_name(local->hw.wiphy));
		local->radio_led->name = local->radio_led_name;
		if (led_trigger_register(local->radio_led)) {
			kfree(local->radio_led);
			local->radio_led = NULL;
		}
	}
}

void ieee80211_led_exit(struct ieee80211_local *local)
{
	if (local->radio_led) {
		led_trigger_unregister(local->radio_led);
		kfree(local->radio_led);
	}
	if (local->assoc_led) {
		led_trigger_unregister(local->assoc_led);
		kfree(local->assoc_led);
	}
	if (local->tx_led) {
		led_trigger_unregister(local->tx_led);
		kfree(local->tx_led);
	}
	if (local->rx_led) {
		led_trigger_unregister(local->rx_led);
		kfree(local->rx_led);
	}
}

char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw)
{
	struct ieee80211_local *local = hw_to_local(hw);

	if (local->radio_led)
		return local->radio_led_name;
	return NULL;
}
EXPORT_SYMBOL(__ieee80211_get_radio_led_name);

char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
{
	struct ieee80211_local *local = hw_to_local(hw);

	if (local->assoc_led)
		return local->assoc_led_name;
	return NULL;
}
EXPORT_SYMBOL(__ieee80211_get_assoc_led_name);

char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
{
	struct ieee80211_local *local = hw_to_local(hw);

	if (local->tx_led)
		return local->tx_led_name;
	return NULL;
}
EXPORT_SYMBOL(__ieee80211_get_tx_led_name);

char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
{
	struct ieee80211_local *local = hw_to_local(hw);

	if (local->rx_led)
		return local->rx_led_name;
	return NULL;
}
EXPORT_SYMBOL(__ieee80211_get_rx_led_name);