69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
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/*
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* File : drv_touch.h
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2017, RT-Thread Development Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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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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*/
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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_DBG_LEVEL DBG_LOG
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#define IIC_RETRY_NUM 2
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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_msg_t;
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struct touch_ops
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{
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void (* isr_enable)(rt_bool_t);
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rt_err_t (* read_point)(touch_msg_t);
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void (* init)(struct rt_i2c_bus_device *);
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void (* deinit)(void);
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};
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typedef struct touch_ops *touch_ops_t;
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struct touch_drivers
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{
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rt_list_t list;
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unsigned char address;
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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_drivers *touch_drv_t;
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extern void rt_touch_drivers_register(touch_drv_t drv);
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#endif
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