| Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 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 | |
| 13 | void 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 */ |
| 24 | void 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 | |
| 36 | void 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 | |
| 61 | void 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 | |
| 73 | char *__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 | } |
| 81 | EXPORT_SYMBOL(__ieee80211_get_tx_led_name); |
| 82 | |
| 83 | char *__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 | } |
| 91 | EXPORT_SYMBOL(__ieee80211_get_rx_led_name); |