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