// PCIDADlg.cpp : implementation file
//

#include "stdafx.h"
#include "PCIDA.h"
#include "PCIDADlg.h"
#include "ACCES32.h"
#include <math.h>

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

#define InsCR(x) x += 0x0d; x += 0x0a;
#define MyKey   "Software\\PCIFIND\\NTioPCI\\Parameters"

bool RunFlag, Testing;
unsigned long Base, XValue;
unsigned long Value;
TPCI_COMMON_CONFIG buf[64];
unsigned long WhichAddress[64], WhichEPROMAddress[64];
int NumChannels[64];

/////////////////////////////////////////////////////////////////////////////
// CPCIDADlg dialog

CPCIDADlg::CPCIDADlg(CWnd* pParent /*=NULL*/)
	: CDialog(CPCIDADlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CPCIDADlg)
	m_StatusEdit = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CPCIDADlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CPCIDADlg)
	DDX_Control(pDX, IDOK, m_StartButton);
	DDX_Control(pDX, IDC_EDIT1, m_StatusControl);
	DDX_Control(pDX, IDC_COMBO2, m_ChannelsComboControl);
	DDX_Control(pDX, IDC_COMBO1, m_CardComboControl);
	DDX_Text(pDX, IDC_EDIT1, m_StatusEdit);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CPCIDADlg, CDialog)
	//{{AFX_MSG_MAP(CPCIDADlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDCANCEL, OnExit)
	ON_WM_SHOWWINDOW()
	ON_BN_CLICKED(IDOK, OnStartClick)
	ON_WM_TIMER()
	ON_CBN_SELCHANGE(IDC_COMBO1, OnSelChangeCardCombo)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CPCIDADlg message handlers

BOOL CPCIDADlg::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
	
   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);
   }

	// 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 CPCIDADlg::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 CPCIDADlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CPCIDADlg::OnExit() 
{
	exit(0);	
}

void CPCIDADlg::OnShowWindow(BOOL bShow, UINT nStatus) 
{
	CDialog::OnShowWindow(bShow, nStatus);
	
	FindCards();	
}

void CPCIDADlg::FindCards(void)
{
	int i, n = 0;
	HKEY Key;
	unsigned long DataType, DataLength;
	long Num =0;
	char AddStr[255];

	RegOpenKeyEx(HKEY_LOCAL_MACHINE, MyKey, 0, KEY_ALL_ACCESS, &Key);
	DataLength = sizeof(Num);
	RegQueryValueEx(Key, "NumDevices", NULL, &DataType, (PUCHAR)&Num, &DataLength);

	if (Num > 0)
	{
		DataLength = Num * sizeof(TPCI_COMMON_CONFIG);
		RegQueryValueEx(Key, "PCICommonConfig", NULL, &DataType, (PUCHAR)buf, &DataLength);
		RunFlag = true;
	}
    for (i=0; i<Num; i++)
	{
        switch (buf[i].DeviceID)
        {
		case 0x6CB0:
			sprintf(AddStr, "Card %02d PCI-DA12-16 BaseAddress: %4X", n+1, buf[i].BaseAddresses[2] & 0xFFF8);
			m_CardComboControl.AddString(AddStr);
			WhichAddress[n] = buf[i].BaseAddresses[2] & 0xFFF8;
			WhichEPROMAddress[n] = buf[i].BaseAddresses[3] & 0xFFF8;
			NumChannels[n] = 16;
			n++;
			break;
		case 0x6CA8:
			sprintf(AddStr, "Card %02d PCI-DA12-8 BaseAddress: %4X", n+1, buf[i].BaseAddresses[2] & 0xFFF8);
			m_CardComboControl.AddString(AddStr);
			WhichAddress[n] = buf[i].BaseAddresses[2] & 0xFFF8;
			WhichEPROMAddress[n] = buf[i].BaseAddresses[3] & 0xFFF8;
			NumChannels[n] = 8;
			n++;
			break;
		case 0x6CA0:
			sprintf(AddStr, "Card %02d PCI-DA12-6 BaseAddress: %4X", n+1, buf[i].BaseAddresses[2] & 0xFFF8);
			m_CardComboControl.AddString(AddStr);
			WhichAddress[n] = buf[i].BaseAddresses[2] & 0xFFF8;
			WhichEPROMAddress[n] = buf[i].BaseAddresses[3] & 0xFFF8;
			NumChannels[n] = 6;
			n++;
			break;
		case 0x6C98:
			sprintf(AddStr, "Card %02d PCI-DA12-4 BaseAddress: %4X", n+1, buf[i].BaseAddresses[2] & 0xFFF8);
			m_CardComboControl.AddString(AddStr);
			WhichAddress[n] = buf[i].BaseAddresses[2] & 0xFFF8;
			WhichEPROMAddress[n] = buf[i].BaseAddresses[3] & 0xFFF8;
			NumChannels[n] = 4;
			n++;
			break;
		case 0x6C90:
			sprintf(AddStr, "Card %02d PCI-DA12-2 BaseAddress: %4X", n+1, buf[i].BaseAddresses[2] & 0xFFF8);
			m_CardComboControl.AddString(AddStr);
			WhichAddress[n] = buf[i].BaseAddresses[2] & 0xFFF8;
			WhichEPROMAddress[n] = buf[i].BaseAddresses[3] & 0xFFF8;
			NumChannels[n] = 2;
			n++;
			break;
		case 0x6CB1:
			sprintf(AddStr, "Card %02d PCI-DA12-16V BaseAddress: %4X", n+1, buf[i].BaseAddresses[2] & 0xFFF8);
			m_CardComboControl.AddString(AddStr);
			WhichAddress[n] = buf[i].BaseAddresses[2] & 0xFFF8;
			WhichEPROMAddress[n] = buf[i].BaseAddresses[3] & 0xFFF8;
			NumChannels[n] = 16;
			n++;
			break;
		case 0x6CA9:
			sprintf(AddStr, "Card %02d PCI-DA12-8V BaseAddress: %4X", n+1, buf[i].BaseAddresses[2] & 0xFFF8);
			m_CardComboControl.AddString(AddStr);
			WhichEPROMAddress[n] = buf[i].BaseAddresses[3] & 0xFFF8;
			WhichAddress[n] = buf[i].BaseAddresses[2] & 0xFFF8;
			NumChannels[n] = 8;
			n++;
			break;
		case 0x6CF0:
			sprintf(AddStr, "Card %02d PCI-DA16-16 BaseAddress: %4X", n+1, buf[i].BaseAddresses[2] & 0xFFF8);
			m_CardComboControl.AddString(AddStr);
			WhichAddress[n] = buf[i].BaseAddresses[2] & 0xFFF8;
			WhichEPROMAddress[n] = buf[i].BaseAddresses[3] & 0xFFF8;
			NumChannels[n] = 16;
			n++;
			break;
		case 0x6CE8:
			sprintf(AddStr, "Card %02d PCI-DA16-8 BaseAddress: %4X", n+1, buf[i].BaseAddresses[2] & 0xFFF8);
			m_CardComboControl.AddString(AddStr);
			WhichAddress[n] = buf[i].BaseAddresses[2] & 0xFFF8;
			WhichEPROMAddress[n] = buf[i].BaseAddresses[3] & 0xFFF8;
			NumChannels[n] = 8;
			n++;
			break;
		case 0x6CF1:
			sprintf(AddStr, "Card %02d PCI-DA16-16V BaseAddress: %4X", n+1, buf[i].BaseAddresses[2] & 0xFFF8);
			m_CardComboControl.AddString(AddStr);
			WhichAddress[n] = buf[i].BaseAddresses[2] & 0xFFF8;
			WhichEPROMAddress[n] = buf[i].BaseAddresses[3] & 0xFFF8;
			NumChannels[n] = 16;
			n++;
			break;
		case 0x6CE9:
			sprintf(AddStr, "Card %02d PCI-DA16-8V BaseAddress: %4X", n+1, buf[i].BaseAddresses[2] & 0xFFF8);
			m_CardComboControl.AddString(AddStr);
			WhichAddress[n] = buf[i].BaseAddresses[2] & 0xFFF8;
			WhichEPROMAddress[n] = buf[i].BaseAddresses[3] & 0xFFF8;
			NumChannels[n] = 8;
			n++;
			break;
		}
	}
	if (!n)
	{
		m_StatusEdit +=  "No PCI-DA Board Found In Registry!";
		InsCR(m_StatusEdit);
		m_StatusEdit += "This may mean the card is not installed.";
		InsCR(m_StatusEdit);
		m_StatusEdit += "Make sure you have run PCIFind.exe.";
		InsCR(m_StatusEdit);
		m_StatusControl.LineScroll(999);

        RunFlag = false;
    }                                                      
	UpdateData(false);
    if (RunFlag)
	{
		m_CardComboControl.SetCurSel(0);
		char text[4];
		m_ChannelsComboControl.Clear();
		for (int i=0; i < NumChannels[m_CardComboControl.GetCurSel()]; i++)
		{
			sprintf(text, "%d", i);
			m_ChannelsComboControl.AddString(text);
		}
		m_ChannelsComboControl.SetCurSel(0);
		Base = WhichAddress[m_CardComboControl.GetCurSel()];
	}
	RegCloseKey(Key);
}


void CPCIDADlg::OnStartClick() 
{
    if (Testing)
    {
        KillTimer(0);
        m_StartButton.SetWindowText("&Start");
        Testing = false;
    }
    else
    {
        if (RunFlag == false)
        {
            m_StatusEdit += "Cannot run without card!";
			InsCR(m_StatusEdit);
			UpdateData(false);
			m_StatusControl.LineScroll(999);
            return;
        }
        InPortB(Base + 0xF);
        InPortB(Base + 0x2);
        m_StartButton.SetWindowText("&Stop");
        Testing = true;
        XValue = Value = 0;
        SetTimer(0, 1, NULL);
    }
}

void CPCIDADlg::OnTimer(UINT nIDEvent) 
{
    double RValue = sin(++Value/50.0);

    unsigned short OutValue = RValue * 2048.0 + 2048.0;
    int Chan = m_ChannelsComboControl.GetCurSel();
    if (RunFlag)
        OutPort(Base + Chan * 2, Cal(OutValue, Chan));

	CDialog::OnTimer(nIDEvent);
}

unsigned short CPCIDADlg::Cal(unsigned short InValue, int Ch)
{
    unsigned long EBase = WhichEPROMAddress[m_CardComboControl.GetCurSel()];
    unsigned char a = InPortB(EBase + ((Ch * 2) + (InPortB(EBase + 240 + Ch) * 32)) + 1);
    unsigned char b = InPortB(EBase + ((Ch * 2) + (InPortB(EBase + 240 + Ch) * 32)));
    unsigned short OutValue = ((4095.0 - a - b) / 4095.0) * InValue + b;
	return OutValue;
}

void CPCIDADlg::OnSelChangeCardCombo() 
{
	char text[4];
	m_ChannelsComboControl.Clear();
	for (int i=0; i < NumChannels[m_CardComboControl.GetCurSel()]; i++)
	{
		sprintf(text, "%d", i);
		m_ChannelsComboControl.AddString(text);
	}
	m_ChannelsComboControl.SetCurSel(0);
	Base = WhichAddress[m_CardComboControl.GetCurSel()];
}