myportioview.cpp

Device IO Control MyPortIo.zip

// MyPortIoView.cpp : implementation of the CMyPortIoView class
//

#include "stdafx.h"
#include "MyPortIo.h"

#include "MyPortIoDoc.h"
#include "MyPortIoView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyPortIoView

IMPLEMENT_DYNCREATE(CMyPortIoView, CEditView)

BEGIN_MESSAGE_MAP(CMyPortIoView, CEditView)
	//{{AFX_MSG_MAP(CMyPortIoView)
	ON_COMMAND(ID_READ_CMOS, OnReadCmos)
	ON_COMMAND(ID_SPEAKER_SOUND, OnSpeakerSound)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CEditView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CEditView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CEditView::OnFilePrintPreview)
END_MESSAGE_MAP()


// 0x70是CMOS索引端口(只写)
// 0x71是CMOS数据端口
BYTE ReadCmos(BYTE index)
{
	BYTE data;

	::WritePortByte(0x70, index);
	
	data = ::ReadPortByte(0x71);

	return data;
}

// 0x61是speaker控制端口
// 0x43是8253/8254定时器控制端口
// 0x42是8253/8254定时器通道2的端口
void Sound(DWORD freq )
{
	BYTE data;

	if(freq>=20 && freq<=20000)
	{
		freq = 1193181 / freq;

		data = ::ReadPortByte(0x61);

		if((data & 3) == 0)
		{
			::WritePortByte(0x61, data | 3);
			::WritePortByte(0x43, 0xb6);
		}

		::WritePortByte(0x42, (BYTE)(freq%256));
		::WritePortByte(0x42, (BYTE)(freq/256));
	}
}

void NoSound( void )
{
	BYTE data;

	data = ::ReadPortByte(0x61);

	::WritePortByte(0x61, data & 0xfc);
}


/////////////////////////////////////////////////////////////////////////////
// CMyPortIoView construction/destruction

CMyPortIoView::CMyPortIoView()
{
	// TODO: add construction code here
}

CMyPortIoView::~CMyPortIoView()
{
}

BOOL CMyPortIoView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	BOOL bPreCreated = CEditView::PreCreateWindow(cs);
	cs.style &= ~(ES_AUTOHSCROLL|WS_HSCROLL);	// Enable word-wrapping

	return bPreCreated;
}

/////////////////////////////////////////////////////////////////////////////
// CMyPortIoView drawing

void CMyPortIoView::OnDraw(CDC* pDC)
{
	CMyPortIoDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CMyPortIoView printing

BOOL CMyPortIoView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default CEditView preparation
	return CEditView::OnPreparePrinting(pInfo);
}

void CMyPortIoView::OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo)
{
	// Default CEditView begin printing.
	CEditView::OnBeginPrinting(pDC, pInfo);
}

void CMyPortIoView::OnEndPrinting(CDC* pDC, CPrintInfo* pInfo)
{
	// Default CEditView end printing
	CEditView::OnEndPrinting(pDC, pInfo);
}

/////////////////////////////////////////////////////////////////////////////
// CMyPortIoView diagnostics

#ifdef _DEBUG
void CMyPortIoView::AssertValid() const
{
	CEditView::AssertValid();
}

void CMyPortIoView::Dump(CDumpContext& dc) const
{
	CEditView::Dump(dc);
}

CMyPortIoDoc* CMyPortIoView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMyPortIoDoc)));
	return (CMyPortIoDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMyPortIoView message handlers

void CMyPortIoView::OnReadCmos() 
{
	// TODO: Add your command handler code here
	CString strInfo;
	CString strTmp;
	BYTE data;

	strInfo = "COMS DATA:\r\n";

	// 读出CMOS 128个字节
	for(int i=0;i<128;i++)
	{
		data = ::ReadCmos(i);
		strTmp.Format("Byte %02X:\t%02X\r\n", i, data);
		strInfo+=strTmp;
	}
	
	CEdit& Edit = GetEditCtrl();

	Edit.SetWindowText(strInfo);
}

void CMyPortIoView::OnSpeakerSound() 
{
	// TODO: Add your command handler code here

	// C调

	// 1 = 262 Hz
	::Sound(262);
	::Sleep(200);
	::NoSound();

	// 2 = 288 Hz
	::Sound(288);
	::Sleep(200);
	::NoSound();

	// 3 = 320 Hz
	::Sound(320);
	::Sleep(200);
	::NoSound();	
}