root/net/mac80211/led.c

DEFINITIONS

1. ieee80211_led_rx
2. ieee80211_led_tx
3. ieee80211_led_assoc
4. ieee80211_led_radio
5. ieee80211_led_init
6. ieee80211_led_exit
7. __ieee80211_get_radio_led_name
8. __ieee80211_get_assoc_led_name
9. __ieee80211_get_tx_led_name
10. __ieee80211_get_rx_led_name

/*
 * 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 "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);