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pumpitupdev_pumptools/src/api/ptapi/io/piubtn.h
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2.8 KiB
C

/**
* Common API to use for any devices implementing piu (pro) button controls
* (e.g. keyboard emulation, custom IOs)
*/
#ifndef PTAPI_IO_PIUBTN_H
#define PTAPI_IO_PIUBTN_H
#include <stdbool.h>
#include <stdint.h>
/**
* Button inputs of a single player
*/
struct ptapi_io_piubtn_inputs {
bool start;
bool back;
bool left;
bool right;
};
/**
* Button light outputs of a single player
*/
struct ptapi_io_piubtn_outputs {
bool start;
bool back;
bool left;
bool right;
};
typedef const char* (*ptapi_io_piubtn_ident_t)(void);
typedef bool (*ptapi_io_piubtn_open_t)(void);
typedef void (*ptapi_io_piubtn_close_t)(void);
typedef bool (*ptapi_io_piubtn_recv_t)(void);
typedef bool (*ptapi_io_piubtn_send_t)(void);
typedef void (*ptapi_io_piubtn_get_input_t)(uint8_t player, struct ptapi_io_piubtn_inputs* inputs);
typedef void (*ptapi_io_piubtn_set_output_t)(uint8_t player, const struct ptapi_io_piubtn_outputs* outputs);
/**
* API functions in a struct to make them easier to handle and have less boilerplate
*/
struct ptapi_io_piubtn_api {
ptapi_io_piubtn_ident_t ident;
ptapi_io_piubtn_open_t open;
ptapi_io_piubtn_close_t close;
ptapi_io_piubtn_recv_t recv;
ptapi_io_piubtn_send_t send;
ptapi_io_piubtn_get_input_t get_input;
ptapi_io_piubtn_set_output_t set_output;
};
/**
* Return an identifier of the implementation. Used for logging and debugging.
*
* @return Identifier string for your implementation (e.g. "my-custom-btnio")
*/
const char* ptapi_io_piubtn_ident(void);
/**
* Open the piubtn device
*
* Open any file handles, spawn threads and/or initialize your device or emulation code to be ready to accept further
* commands.
*
* @return True if opening/initializing your implementation was sucessful, false on failure
*/
bool ptapi_io_piubtn_open(void);
/**
* Close and cleanup your device, shut down threads, free resources etc
*/
void ptapi_io_piubtn_close(void);
/**
* Get _ALL_ readable data from your device in this single recv call.
*
* @return True on success, false on error
*/
bool ptapi_io_piubtn_recv(void);
/**
* Send any output data (e.g. lights) to your device
*
* @return True on success, false on error
*/
bool ptapi_io_piubtn_send(void);
/**
* Get buffered button input data
*
* @param player Player id (0, 1)
* @param inputs Pointer to buffer to copy inputs to. Every time this is invoked, this buffer is nulled. If you do not
* write any data to this, all inputs remain un-triggered.
*/
void ptapi_io_piubtn_get_input(uint8_t player, struct ptapi_io_piubtn_inputs* inputs);
/**
* Set button light outputs (i.e. buffer them)
*
* @param player Player id (0, 1)
* @param outputs Pointer to output data to copy to your private buffers.
*/
void ptapi_io_piubtn_set_output(uint8_t player, const struct ptapi_io_piubtn_outputs* outputs);
#endif