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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-02-08 Zhangyihong the first version
* 2018-10-29 XY
*/
#ifndef __DRV_TOUCH_H__
#define __DRV_TOUCH_H__
#include "rtthread.h"
#include "rtdevice.h"
#define TOUCH_EVENT_UP (0x01)
#define TOUCH_EVENT_DOWN (0x02)
#define TOUCH_EVENT_MOVE (0x03)
#define TOUCH_EVENT_NONE (0x80)
struct touch_message
{
rt_uint16_t x;
rt_uint16_t y;
rt_uint8_t event;
};
typedef struct touch_message *touch_message_t;
struct touch_ops
{
void (*init)(struct rt_i2c_bus_device *);
void (*deinit)(void);
rt_err_t (*read_point)(touch_message_t);
};
typedef struct touch_ops *touch_ops_t;
struct touch_driver
{
rt_slist_t list;
rt_bool_t (*probe)(struct rt_i2c_bus_device *i2c_bus);
rt_sem_t isr_sem;
touch_ops_t ops;
void *user_data;
};
typedef struct touch_driver *touch_driver_t;
rt_err_t rt_touch_drivers_register(touch_driver_t drv);
int rt_touch_read(rt_uint16_t addr, void *cmd_buf, size_t cmd_len, void *data_buf, size_t data_len);
int rt_touch_write(rt_uint16_t addr, void *data_buf, size_t data_len);
#endif
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