#include "stdafx.h"
#include "ExternLightControlLCP.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CExternLightControlLCP::CExternLightControlLCP()
{
	m_hLightControl = NULL;
}

CExternLightControlLCP::~CExternLightControlLCP()
{
	CloseControl();
}	

BOOL CExternLightControlLCP::OpenControl(int nPort)
{
	m_nPort = nPort;
	
	DCB dcb;

	CString strPort;
	strPort.Format(_T("COM%d"), nPort);
	
	m_hLightControl = CreateFile( strPort, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );

	if (m_hLightControl == INVALID_HANDLE_VALUE)
	{
		CloseHandle(m_hLightControl);
		m_hLightControl = NULL;
		return FALSE;
	}
	
	dcb.DCBlength = sizeof(DCB);
	if (GetCommState(m_hLightControl,(LPDCB) &dcb))
	{
		dcb.DCBlength		= sizeof(DCB);
		dcb.BaudRate		= CBR_9600;
		dcb.ByteSize		= 8;
		dcb.fParity			= FALSE;
		dcb.Parity			= NOPARITY;
		//		dcb.StopBits		= 1;
		dcb.fOutxCtsFlow	= 0;
		dcb.fOutxDsrFlow	= 0;
		dcb.fOutX			= 0;
		dcb.fInX			= 0;
		
		if (!SetCommState(m_hLightControl,(LPDCB) &dcb))
		{
			CloseHandle(m_hLightControl);
			m_hLightControl = NULL;
			return FALSE;
		}
	}
	else
	{
		CloseHandle(m_hLightControl);
		m_hLightControl = NULL;
		return FALSE;
	}	
	
	return TRUE;
}

BOOL CExternLightControlLCP::CloseControl()
{
	if (m_hLightControl)
		CloseHandle(m_hLightControl);
	m_hLightControl = NULL;
	
	return TRUE;
}

BOOL CExternLightControlLCP::SetLightControlValue(int nChannel, int nValue)
{
	if (nChannel < 0 || nChannel > MAX_LAMP_CHANNEL)
		return FALSE;
	if (!m_hLightControl)
		return FALSE;
	

	CString tmp;
	char Outbuf[10];
	DWORD NumberOfBytesWritten;
			
	//tmp.Format(_T("%c%cw%4.4u%c"), 0x02, nChannel+0x30, nValue, 0x03);
	tmp.Format(_T("%c%cw%04d%c"), 0x02, nChannel+0x30, nValue, 0x03);
	
	int nLength = tmp.GetLength();
	ZeroMemory(Outbuf,sizeof(char)*10);

	sprintf_s(Outbuf,"%c%c%c%c%c%c%c%c",tmp.GetAt(0),tmp.GetAt(1),tmp.GetAt(2),tmp.GetAt(3),tmp.GetAt(4),tmp.GetAt(5),tmp.GetAt(6),tmp.GetAt(7));	
	
	BOOL bRet = WriteFile( m_hLightControl,(LPCVOID) Outbuf,8,(LPDWORD) &NumberOfBytesWritten,NULL);

	m_nLightValue = nValue;

	return bRet;
}

BOOL CExternLightControlLCP::IsTurnOnLamp(int iIdxChannel)
{
	
	return TRUE;
}

BOOL CExternLightControlLCP::TurnOnOffLamp(int nChannel,BOOL bOn)
{
	if (nChannel < 0 || nChannel > MAX_LAMP_CHANNEL)
		return FALSE;
	if (!m_hLightControl)
		return FALSE;

	char Outbuf[10];
	ZeroMemory(Outbuf,sizeof(char)*10);

	Outbuf[0] = 0x02;
	Outbuf[1] = nChannel+0x30;
	if(bOn == TRUE)
		Outbuf[2] = 'o';
	else
		Outbuf[2] = 'f';
	Outbuf[3] = 0x03;

	DWORD NumberOfBytesWritten;
	BOOL bRet = WriteFile( m_hLightControl,(LPCVOID) Outbuf,4,(LPDWORD) &NumberOfBytesWritten,NULL);

	return bRet;
}