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