include/linux/can/led.h

   1 /*
   2  * Copyright 2012, Fabio Baltieri <fabio.baltieri@gmail.com>
   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 #ifndef _CAN_LED_H
  10 #define _CAN_LED_H
  11
  12 #include <linux/if.h>
  13 #include <linux/leds.h>
  14
  15 enum can_led_event {
  16         CAN_LED_EVENT_OPEN,
  17         CAN_LED_EVENT_STOP,
  18         CAN_LED_EVENT_TX,
  19         CAN_LED_EVENT_RX,
  20 };
  21
  22 #ifdef CONFIG_CAN_LEDS
  23
  24 /* keep space for interface name + "-tx"/"-rx"/"-rxtx"
  25  * suffix and null terminator
  26  */
  27 #define CAN_LED_NAME_SZ (IFNAMSIZ + 6)
  28
  29 void can_led_event(struct net_device *netdev, enum can_led_event event);
  30 void devm_can_led_init(struct net_device *netdev);
  31 int __init can_led_notifier_init(void);
  32 void __exit can_led_notifier_exit(void);
  33
  34 #else
  35
  36 static inline void can_led_event(struct net_device *netdev,
  37                                  enum can_led_event event)
  38 {
  39 }
  40 static inline void devm_can_led_init(struct net_device *netdev)
  41 {
  42 }
  43 static inline int can_led_notifier_init(void)
  44 {
  45         return 0;
  46 }
  47 static inline void can_led_notifier_exit(void)
  48 {
  49 }
  50
  51 #endif
  52
  53 #endif /* !_CAN_LED_H */