// Sample 0Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "Sample 0.h"
#include "Sample 0Dlg.h"
#include "acces32.h"

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

#define InsCR(x) x += 0x0d; x += 0x0a;

int base = 0x300;

/////////////////////////////////////////////////////////////////////////////
// CSample0Dlg dialog

CSample0Dlg::CSample0Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSample0Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSample0Dlg)
	m_BaseEdit = _T("300");
	m_ChannelLabel = _T("");
	m_Instructions = _T("Sample 0");
	m_CardName = _T("AD12-8");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CSample0Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSample0Dlg)
	DDX_Control(pDX, IDOK, m_TestButton);
	DDX_Text(pDX, IDC_BASE_EDIT, m_BaseEdit);
	DDX_Text(pDX, IDC_ChannelLabels, m_ChannelLabel);
	DDX_Text(pDX, IDC_INSTRUCT_TEXT, m_Instructions);
	DDX_Text(pDX, IDC_TITLE_LABEL, m_CardName);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSample0Dlg, CDialog)
	//{{AFX_MSG_MAP(CSample0Dlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_TIMER()
	ON_BN_CLICKED(IDCANCEL, OnExitButtonClick)
	ON_BN_CLICKED(IDOK, OnTestButtonClick)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSample0Dlg message handlers

BOOL CSample0Dlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon

	InsCR(m_Instructions);
	m_Instructions += _T("This sample reads the eight analog inputs and displays them for you.");
	InsCR(m_Instructions);
	m_Instructions += _T("Please enter the base address (in hex) in the text box below, and click the 'Start Test' button to begin.");
	
    CString ThisLabel;
	int i = 0;
	
	for (i = 0; i <= 7; i++) {
       ThisLabel.Format("Channel %1X", i);
	   m_ChannelLabel += ThisLabel;
	   InsCR(m_ChannelLabel);
	   InsCR(m_ChannelLabel);
   }

   if (InPortB(0x61) == 0xAA55) {
      MessageBox("ACCESNT.SYS not detected. Please copy ACCESNT.SYS into [NT]/system32/drivers and re-run this sample.", "Warning", MB_OK);
   }

	UpdateData(false);
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CSample0Dlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CSample0Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CSample0Dlg::OnTimer(UINT nIDEvent) 
{
   int channel, counts, i, j;
   double volts;
   CString ThisLabel = "";
   CString RangeString = "";

   sscanf(m_BaseEdit.GetBuffer(0), "%x", &base);

   for (channel = 0; channel <= 7; channel++) {
      OutPortB(base+2, channel);        // Set channel

     if ((channel % 2) == 0) {         // Set gain:
         OutPortB(base+3, 0x00);        // +/-5v range on even channels
         RangeString = "±5V";
      }  //  end if
      else {
         OutPortB(base+3, 0x08);        // +/-10v range on odd channels
         RangeString = "±10v";
      }  //  end else

      for (i = 0;i < 2000;i++);        // Wait for settle count, this is an empty loop
      OutPortB(base+1, 0);              // Start A/D conversion
      j = 0;                            // Wait for EOC or timeout

      while (((InPortB(base+2) & 0x80) >= 0x80) & (j < 2000))
         j++;

      if (j >=2000) {
         m_ChannelLabel.Format("Timeout on channel %1X", channel);
		 UpdateData(false);
         break;
      }  //  end if

      counts = InPort(base) >> 4;       // Read count data

      // Scaling 5v range on 12 bit device = 0.00244v/count
       volts  = (counts-2048.0)*0.00244;

      // Display results
	  if (channel == 0)
         m_ChannelLabel.Format("Channel %1X                        %d                      %g                      %4s",channel,counts,volts,RangeString);
	  else {
         ThisLabel.Format("Channel %1X                        %d                      %g                      %4s",channel,counts,volts,RangeString);
		 InsCR(m_ChannelLabel); 
		 InsCR(m_ChannelLabel);
	     m_ChannelLabel += ThisLabel;
	  }  //  end else
   }  //  end for
	
   UpdateData(false);

   CDialog::OnTimer(nIDEvent);
}

void CSample0Dlg::OnExitButtonClick() 
{
   exit(0);	
}

void CSample0Dlg::OnTestButtonClick() 
{
	static bool TimerEnabled = false;

	if (TimerEnabled)
	{
		TimerEnabled = false;	
    	int i = 0;
		CString ThisLabel = "";
		m_ChannelLabel.Empty();

		m_TestButton.SetWindowText("Start Test");
        for (i = 0; i <= 7; i++) {
			ThisLabel.Format("Channel %1X                        0                                 0                          0", i);
			m_ChannelLabel += ThisLabel;
			InsCR(m_ChannelLabel);
			InsCR(m_ChannelLabel);
		}

	    UpdateData(false);
		KillTimer(0);
	}
	else
	{
		TimerEnabled = true;
		m_TestButton.SetWindowText("Abort Test");
		SetTimer(0, 100, NULL);
	}	
}