vcan.h

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#ifndef VCAN_H
#define VCAN_H
 
#ifdef __cplusplus
extern "C"
{
#endif
 
#define VCAN_VERSION "2.0.0"
 
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include <stdlib.h>
 
#define VCAN_DATA_MAX_LEN 64
 
#define VCAN_MAX_CONNECTED_NODES 16
 
typedef enum
{
            VCAN_OK = 0,
            VCAN_NULL_BUS = 1,
            VCAN_NULL_MSG = 2,
            VCAN_NULL_NODE = 3,
            VCAN_NULL_CALLBACK = 4,
 
            VCAN_TOO_MANY_CONNECTED = 5,
 
            VCAN_NODE_NOT_FOUND = 6,
            VCAN_ALREADY_CONNECTED = 7,
} vcan_err_t;
 
typedef struct
{
    uint32_t id;
 
    uint32_t len;
 
    uint8_t data[VCAN_DATA_MAX_LEN];
} vcan_msg_t;
 
struct vcan_node
{
    void (* callback_on_rx)(struct vcan_node* node, const vcan_msg_t* msg);
 
    void* other_custom_data;
 
    uint32_t id;
};
 
typedef struct vcan_node vcan_node_t;
 
typedef struct
{
    vcan_msg_t received_msg;
 
    vcan_node_t* nodes[VCAN_MAX_CONNECTED_NODES];
 
    size_t connected;
} vcan_bus_t;
 
vcan_err_t vcan_init(vcan_bus_t* bus);
 
vcan_err_t vcan_connect(vcan_bus_t* bus, vcan_node_t* node);
 
vcan_err_t vcan_disconnect(vcan_bus_t* bus, const vcan_node_t* node);
 
vcan_err_t vcan_tx(vcan_bus_t* bus,
                   const vcan_msg_t* msg,
                   const vcan_node_t* src_node);
 
#ifdef __cplusplus
}
#endif
 
#endif  /* VCAN_H */