206 lines
6.3 KiB
C++
206 lines
6.3 KiB
C++
#include "keymonitor.h"
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#include <uart/Gpio.h>
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#include <uart/PinMonitor.h>
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#include <iostream>
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#define STATUS_SUCCESS 0
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#define STATUS_FAILURE -1
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#define CH455_GET_KEY 0x0700 // 获取按键,返回按键代码
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#define CH455_SYSOFF 0x0400 // 关闭显示、关闭键盘
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#define CH455_I2C_ADDR 0x40 // CH455的地址
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#define CH455_I2C_MASK 0x3E // CH455的高字节命令掩码
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#define CH455_BIT_ENABLE 0x01
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//#define CH455_BIT_ENABLE 0x03 // 开启/关闭位
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#define CH455_BIT_SLEEP 0x04 // 睡眠控制位
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#define CH455_SYSON ( CH455_SYSOFF | CH455_BIT_ENABLE )
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#define CH455_SLEEPOFF CH455_SYSOFF // 关闭睡眠
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#define CH455_SLEEPON (CH455_SYSOFF|CH455_BIT_SLEEP) // 开启睡眠
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KeyMonitor::KeyMonitor(std::function<void(int)> keycall) : m_keycall(keycall)
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{
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m_gpioi2c_SCL = std::make_shared<Gpio>(44); //I2C_SCL
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m_gpioi2c_SCL->setDirection(Gpio::out);
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m_gpioi2c_SDA = std::make_shared<Gpio>(43); //I2C_SDA
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m_gpioi2c_SDA->setDirection(Gpio::out);
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write_cmd(CH455_SYSON);
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printf("read_key = %02x\n", read_key());
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setled(HGLed::Led_All_close);
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auto pincall=[&](int pin)
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{
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auto value= read_key();
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// printf("Key = %02x pin value = %d \n",value,pin);
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if(m_keycall)
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m_keycall(value);
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};
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m_keymonitor = std::make_shared<PinMonitor>(52,pincall);
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}
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KeyMonitor::~KeyMonitor()
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{
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if(m_gpioi2c_SCL.get())
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m_gpioi2c_SCL.reset();
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if(m_gpioi2c_SDA.get())
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m_gpioi2c_SDA.reset();
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if(m_keymonitor.get())
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m_keymonitor.reset();
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}
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void KeyMonitor::init()
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{
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}
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void KeyMonitor::i2c_start()
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{
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m_gpioi2c_SDA->setValue(Gpio::GpioLevel::High);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::High);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SDA->setValue(Gpio::GpioLevel::Low);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::Low);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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}
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void KeyMonitor::i2c_write(unsigned char cmd)
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{
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unsigned char i;
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for(i=0; i<8; i++)
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{
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//IOWR(I2C_SCL, 0); //钳住I2C总线，准备发送数据
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if(cmd & 0x80)
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m_gpioi2c_SDA->setValue(Gpio::GpioLevel::High);
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else
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m_gpioi2c_SDA->setValue(Gpio::GpioLevel::Low);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::High);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::Low);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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cmd<<=1;
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}
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SDA->setValue(Gpio::GpioLevel::High);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::High);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::Low);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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}
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unsigned char KeyMonitor::i2c_read()
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{
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unsigned char bytedata = 0;
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m_gpioi2c_SDA->setDirection(Gpio::in);//将数据设置为输入模式
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//m_gpioi2c_SDA->setValue(Gpio::GpioLevel::High);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::Low);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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for(int i=0; i<8; i++)
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{
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::High);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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bytedata <<= 1;
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bytedata = bytedata | (m_gpioi2c_SDA->getValue());
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::Low);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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}
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m_gpioi2c_SDA->setDirection(Gpio::out);
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m_gpioi2c_SDA->setValue(Gpio::GpioLevel::High);////数据线设置回输出模式
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::High);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::Low);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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return bytedata;
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}
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void KeyMonitor::i2c_stop()
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{
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::Low);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SDA->setValue(Gpio::GpioLevel::Low);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SCL->setValue(Gpio::GpioLevel::High);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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m_gpioi2c_SDA->setValue(Gpio::GpioLevel::High);
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std::this_thread::sleep_for(std::chrono::microseconds(5));
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}
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void KeyMonitor::write_cmd(unsigned short cmd)
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{
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i2c_start();
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i2c_write(((unsigned char)(cmd>>7)&CH455_I2C_MASK)|CH455_I2C_ADDR);
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i2c_write(cmd);
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i2c_stop();
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}
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unsigned char KeyMonitor::read_key()
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{
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unsigned char key=0;
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i2c_start();
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i2c_write((unsigned char)(CH455_GET_KEY>>7)&CH455_I2C_MASK|0x01|CH455_I2C_ADDR);
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key = i2c_read();
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i2c_stop();
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return key;
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}
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std::uint8_t KeyMonitor::getledstate()
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{
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return m_ledstate;
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}
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void KeyMonitor::setled(HGLed value)
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{
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switch (value)
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{
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case HGLed::Led_All_close:
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m_ledstate = 0;
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break;
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#ifdef G200
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case HGLed::Led_All_open:
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m_ledstate = 0xf8;
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break;
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case HGLed::Led_Count_close:
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m_ledstate = m_ledstate & 0xef;
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break;
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case HGLed::Led_Count_open:
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m_ledstate = m_ledstate | 0x10;
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break;
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case HGLed::Led_DoubleFeed_close:
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m_ledstate = m_ledstate & 0xbf;
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break;
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case HGLed::Led_DoubleFeed_open:
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m_ledstate = m_ledstate | 0x40;
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break;
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case HGLed::Led_Enter_close:
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m_ledstate = m_ledstate & 0xf7;
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break;
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case HGLed::Led_Enter_open:
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m_ledstate = m_ledstate | 0x8;
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break;
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case HGLed::Led_Handle_close:
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m_ledstate = m_ledstate & 0xdf;
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break;
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case HGLed::Led_Handle_open:
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m_ledstate = m_ledstate | 0x20;
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break;
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#endif
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default:
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break;
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}
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i2c_start();
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i2c_write(0x6e);
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i2c_write(m_ledstate);
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i2c_stop();
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}
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