LXR linux/net/mac80211/ieee80211

   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_assoc(struct ieee80211_local *local, bool associated)
  37{
  38        if (unlikely(!local->assoc_led))
  39                return;
  40        if (associated)
  41                led_trigger_event(local->assoc_led, LED_FULL);
  42        else
  43                led_trigger_event(local->assoc_led, LED_OFF);
  44}
  45
  46void ieee80211_led_init(struct ieee80211_local *local)
  47{
  48        local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
  49        if (local->rx_led) {
  50                snprintf(local->rx_led_name, sizeof(local->rx_led_name),
  51                         "%srx", wiphy_name(local->hw.wiphy));
  52                local->rx_led->name = local->rx_led_name;
  53                if (led_trigger_register(local->rx_led)) {
  54                        kfree(local->rx_led);
  55                        local->rx_led = NULL;
  56                }
  57        }
  58
  59        local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
  60        if (local->tx_led) {
  61                snprintf(local->tx_led_name, sizeof(local->tx_led_name),
  62                         "%stx", wiphy_name(local->hw.wiphy));
  63                local->tx_led->name = local->tx_led_name;
  64                if (led_trigger_register(local->tx_led)) {
  65                        kfree(local->tx_led);
  66                        local->tx_led = NULL;
  67                }
  68        }
  69
  70        local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
  71        if (local->assoc_led) {
  72                snprintf(local->assoc_led_name, sizeof(local->assoc_led_name),
  73                         "%sassoc", wiphy_name(local->hw.wiphy));
  74                local->assoc_led->name = local->assoc_led_name;
  75                if (led_trigger_register(local->assoc_led)) {
  76                        kfree(local->assoc_led);
  77                        local->assoc_led = NULL;
  78                }
  79        }
  80}
  81
  82void ieee80211_led_exit(struct ieee80211_local *local)
  83{
  84        if (local->assoc_led) {
  85                led_trigger_unregister(local->assoc_led);
  86                kfree(local->assoc_led);
  87        }
  88        if (local->tx_led) {
  89                led_trigger_unregister(local->tx_led);
  90                kfree(local->tx_led);
  91        }
  92        if (local->rx_led) {
  93                led_trigger_unregister(local->rx_led);
  94                kfree(local->rx_led);
  95        }
  96}
  97
  98char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
  99{
 100        struct ieee80211_local *local = hw_to_local(hw);
 101
 102        if (local->assoc_led)
 103                return local->assoc_led_name;
 104        return NULL;
 105}
 106EXPORT_SYMBOL(__ieee80211_get_assoc_led_name);
 107
 108char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
 109{
 110        struct ieee80211_local *local = hw_to_local(hw);
 111
 112        if (local->tx_led)
 113                return local->tx_led_name;
 114        return NULL;
 115}
 116EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
 117
 118char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
 119{
 120        struct ieee80211_local *local = hw_to_local(hw);
 121
 122        if (local->rx_led)
 123                return local->rx_led_name;
 124        return NULL;
 125}
 126EXPORT_SYMBOL(__ieee80211_get_rx_led_name);
 127