47f0c50220
Many devices have LEDs to indicate the link status. Export this functionality to drivers. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
126 lines
3.2 KiB
C
126 lines
3.2 KiB
C
/*
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* Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/* just for IFNAMSIZ */
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#include <linux/if.h>
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#include "ieee80211_led.h"
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void ieee80211_led_rx(struct ieee80211_local *local)
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{
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if (unlikely(!local->rx_led))
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return;
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if (local->rx_led_counter++ % 2 == 0)
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led_trigger_event(local->rx_led, LED_OFF);
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else
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led_trigger_event(local->rx_led, LED_FULL);
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}
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/* q is 1 if a packet was enqueued, 0 if it has been transmitted */
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void ieee80211_led_tx(struct ieee80211_local *local, int q)
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{
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if (unlikely(!local->tx_led))
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return;
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/* not sure how this is supposed to work ... */
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local->tx_led_counter += 2*q-1;
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if (local->tx_led_counter % 2 == 0)
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led_trigger_event(local->tx_led, LED_OFF);
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else
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led_trigger_event(local->tx_led, LED_FULL);
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}
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void ieee80211_led_assoc(struct ieee80211_local *local, bool associated)
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{
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if (unlikely(!local->assoc_led))
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return;
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if (associated)
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led_trigger_event(local->assoc_led, LED_FULL);
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else
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led_trigger_event(local->assoc_led, LED_OFF);
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}
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void ieee80211_led_init(struct ieee80211_local *local)
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{
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local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
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if (local->rx_led) {
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snprintf(local->rx_led_name, sizeof(local->rx_led_name),
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"%srx", wiphy_name(local->hw.wiphy));
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local->rx_led->name = local->rx_led_name;
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if (led_trigger_register(local->rx_led)) {
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kfree(local->rx_led);
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local->rx_led = NULL;
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}
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}
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local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
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if (local->tx_led) {
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snprintf(local->tx_led_name, sizeof(local->tx_led_name),
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"%stx", wiphy_name(local->hw.wiphy));
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local->tx_led->name = local->tx_led_name;
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if (led_trigger_register(local->tx_led)) {
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kfree(local->tx_led);
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local->tx_led = NULL;
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}
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}
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local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
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if (local->assoc_led) {
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snprintf(local->assoc_led_name, sizeof(local->assoc_led_name),
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"%sassoc", wiphy_name(local->hw.wiphy));
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local->assoc_led->name = local->assoc_led_name;
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if (led_trigger_register(local->assoc_led)) {
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kfree(local->assoc_led);
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local->assoc_led = NULL;
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}
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}
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}
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void ieee80211_led_exit(struct ieee80211_local *local)
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{
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if (local->assoc_led) {
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led_trigger_unregister(local->assoc_led);
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kfree(local->assoc_led);
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}
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if (local->tx_led) {
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led_trigger_unregister(local->tx_led);
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kfree(local->tx_led);
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}
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if (local->rx_led) {
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led_trigger_unregister(local->rx_led);
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kfree(local->rx_led);
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}
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}
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char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
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{
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struct ieee80211_local *local = hw_to_local(hw);
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if (local->assoc_led)
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return local->assoc_led_name;
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return NULL;
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}
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EXPORT_SYMBOL(__ieee80211_get_assoc_led_name);
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char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
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{
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struct ieee80211_local *local = hw_to_local(hw);
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if (local->tx_led)
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return local->tx_led_name;
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return NULL;
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}
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EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
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char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
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{
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struct ieee80211_local *local = hw_to_local(hw);
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if (local->rx_led)
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return local->rx_led_name;
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return NULL;
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}
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EXPORT_SYMBOL(__ieee80211_get_rx_led_name);
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