/* * 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 */ #ifndef __DRV_TOUCH_H__ #define __DRV_TOUCH_H__ #include "rtthread.h" #include "rtdevice.h" #define TOUCH_DBG_LEVEL DBG_LOG #define IIC_RETRY_NUM 2 #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_msg_t; struct touch_ops { void (* isr_enable)(rt_bool_t); rt_err_t (* read_point)(touch_msg_t); void (* init)(struct rt_i2c_bus_device *); void (* deinit)(void); }; typedef struct touch_ops *touch_ops_t; struct touch_drivers { rt_list_t list; unsigned char address; 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_drivers *touch_drv_t; extern void rt_touch_drivers_register(touch_drv_t drv); #endif