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93 lines
1.8 KiB
93 lines
1.8 KiB
6 months ago
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/******************************************************************
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Copyright © Deng Zhimao Co., Ltd. 1990-2030. All rights reserved.
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* @projectName iotest
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* @brief beep.cpp
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* @author Deng Zhimao
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* @email 1252699831@qq.com
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* @date 2020-07-20
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*******************************************************************/
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#include "beep.h"
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <QDebug>
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#include <QEvent>
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Beep::Beep(QObject *parent) : QObject (parent)
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{
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keythread = new KeysThread;
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connect(keythread,SIGNAL(myKeyValueChanged()),this,SLOT(readMykeysChanged()));
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}
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void Beep::setKeyMonitor(bool str)
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{
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if (str){
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keythread->start();
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keythread->startFlag = true;
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}
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else{
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keythread->startFlag = false;
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keythread->quit();
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}
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}
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void Beep::setBeepState(bool str)
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{
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char const *filename = "/sys/devices/platform/leds/leds/beep/brightness";
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int err = 0;
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int fd;
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unsigned char databuf[1];
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if (str)
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databuf[0] = '1';
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else
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databuf[0] = '0';
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fd = open(filename, O_RDWR);
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if(fd < 0){
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close(fd);
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qDebug()<<"open file error!"<<endl;
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return;
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}
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err = write(fd, databuf, sizeof(databuf));
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if (err < 0){
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close(fd);
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qDebug()<<"read data error!"<<endl;
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return;
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}
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close(fd);
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}
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void Beep::readMykeysChanged()
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{
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if(keythread->startFlag){
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key0 = keythread->key0Value;
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key1 = keythread->key1Value;
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if (key0 || key1)
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setBeepState(true);
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else
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setBeepState(false);
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emit keysPressChanged();
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}
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}
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bool Beep::key0Str()
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{
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return key0;
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}
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bool Beep::key1Str()
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{
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return key1;
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}
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Beep::~Beep()
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{
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}
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