1 /*
2  * COPYRIGHT (C) 2012-2024, Shanghai Real-Thread Technology Co., Ltd
3  * All rights reserved.
4  * Change Logs:
5  * Date           Author       Notes
6  * 2018-02-08     RT-Thread  the first version
7  */
8 
9 #ifndef __DRV_TOUCH_H__
10 #define __DRV_TOUCH_H__
11 
12 #include <stddef.h>
13 #include "rtthread.h"
14 #include "rtdevice.h"
15 
16 #define TOUCH_POLL_MODE (1 << 0)
17 #define TOUCH_INT_MODE (1 << 1)
18 
19 struct touch_ops
20 {
21     void (*init)(struct rt_i2c_bus_device *);
22     void (*deinit)(void);
23     rt_err_t (*read_point)(struct rt_touch_data *touch_data, rt_size_t touch_num);
24 };
25 typedef struct touch_ops *touch_ops_t;
26 
27 struct touch_driver
28 {
29     rt_slist_t list;
30     rt_bool_t (*probe)(struct rt_i2c_bus_device *i2c_bus);
31     rt_tick_t read_interval;
32     rt_uint32_t check_mode;
33     touch_ops_t ops;
34     void *user_data;
35 };
36 typedef struct touch_driver *touch_driver_t;
37 
38 rt_err_t rt_touch_drivers_register(touch_driver_t drv);
39 
40 int rt_touch_read(rt_uint16_t addr, void *cmd_buf, size_t cmd_len, void *data_buf, size_t data_len);
41 int rt_touch_write(rt_uint16_t addr, void *data_buf, size_t data_len);
42 void touch_coord_convert(int *x, int *y, int range_x, int range_y, int flag);
43 #endif
44