touch_dev.h

/*
 * Copyright (C) 2020 Inria
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#ifndef TOUCH_DEV_H
#define TOUCH_DEV_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
 
typedef struct touch_dev touch_dev_t;
 
typedef struct {
    uint16_t x;     
    uint16_t y;     
} touch_t;
 
typedef struct {
 
    uint16_t (*height)(const touch_dev_t *dev);
 
    uint16_t (*width)(const touch_dev_t *dev);
 
    uint8_t (*touches)(const touch_dev_t *dev, touch_t *touches, size_t len);
} touch_dev_driver_t;
 
struct touch_dev {
    const touch_dev_driver_t *driver;    
};
 
uint16_t touch_dev_height(const touch_dev_t *dev);
 
uint16_t touch_dev_width(const touch_dev_t *dev);
 
uint8_t touch_dev_touches(const touch_dev_t *dev, touch_t *touches, size_t len);
 
#ifdef __cplusplus
}
#endif
 
#endif /* TOUCH_DEV_H */