1 /* 2 * linux/can/dev.h 3 * 4 * Definitions for the CAN network device driver interface 5 * 6 * Copyright (C) 2006 Andrey Volkov <[email protected]> 7 * Varma Electronics Oy 8 * 9 * Copyright (C) 2008 Wolfgang Grandegger <[email protected]> 10 * 11 * Send feedback to <[email protected]> 12 */ 13 14 #ifndef CAN_DEV_H 15 #define CAN_DEV_H 16 17 #include <linux/can/netlink.h> 18 #include <linux/can/error.h> 19 20 /* 21 * CAN mode 22 */ 23 enum can_mode { 24 CAN_MODE_STOP = 0, 25 CAN_MODE_START, 26 CAN_MODE_SLEEP 27 }; 28 29 /* 30 * CAN common private data 31 */ 32 #define CAN_ECHO_SKB_MAX 4 33 34 struct can_priv { 35 struct can_device_stats can_stats; 36 37 struct can_bittiming bittiming; 38 struct can_bittiming_const *bittiming_const; 39 struct can_clock clock; 40 41 enum can_state state; 42 u32 ctrlmode; 43 44 int restart_ms; 45 struct timer_list restart_timer; 46 47 struct sk_buff *echo_skb[CAN_ECHO_SKB_MAX]; 48 49 int (*do_set_bittiming)(struct net_device *dev); 50 int (*do_set_mode)(struct net_device *dev, enum can_mode mode); 51 int (*do_get_state)(const struct net_device *dev, 52 enum can_state *state); 53 }; 54 55 struct net_device *alloc_candev(int sizeof_priv); 56 void free_candev(struct net_device *dev); 57 58 int open_candev(struct net_device *dev); 59 void close_candev(struct net_device *dev); 60 61 int register_candev(struct net_device *dev); 62 void unregister_candev(struct net_device *dev); 63 64 int can_restart_now(struct net_device *dev); 65 void can_bus_off(struct net_device *dev); 66 67 void can_put_echo_skb(struct sk_buff *skb, struct net_device *dev, int idx); 68 void can_get_echo_skb(struct net_device *dev, int idx); 69 70 #endif /* CAN_DEV_H */ 71