target.h

 
#pragma once
 
#include <stdint.h>
 
struct joybus_target;

#define JOYBUS_TARGET(target) ((struct joybus_target *)(target))

typedef void (*joybus_target_response_cb_t)(const uint8_t *response, uint8_t len, void *user_data);
 
// API for a Joybus target.
struct joybus_target_api {
  int (*byte_received)(struct joybus_target *target, const uint8_t *command, uint8_t byte_idx,
                       joybus_target_response_cb_t send_response, void *user_data);
};

struct joybus_target {
  const struct joybus_target_api *api;
};

static inline int joybus_target_byte_received(struct joybus_target *target, const uint8_t *command, uint8_t byte_idx,
                                              joybus_target_response_cb_t send_response, void *user_data)
{
  return target->api->byte_received(target, command, byte_idx, send_response, user_data);
}