ps2mouse.cpp

来自「WinCE 3.0 BSP, 包含Inter SA1110, Intel_815」· C++ 代码 · 共 224 行

/*

THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.
Copyright (c) 1995-2000 Microsoft Corporation.  All rights reserved.

*/

#include <windows.h>
#include <ceddk.h>
#include <nkintr.h>

#include "ps2port.hpp"
#include "ps2mouse.hpp"
#include "ps2keybd.hpp"

#ifdef WINCECODETEST
#ifndef __CT__
#include "ct.h"
#endif

#ifndef __CT_CE__
#include "ct_ce.h"
#endif

#ifndef __TAGIMPORTS__
#include "tagimports.h"
#endif
#endif  // WINCECODETEST

DWORD dwSysIntr_Mouse;

extern void Read_SysIntr( LPCWSTR szKeyName, LPDWORD pdwSysIntr );
    
BOOL
Ps2Mouse::
Initialize(
	Ps2Port	*pp2p
	)
{
	UINT8		ui8Data;

	m_pp2p = pp2p;
	m_hevInterrupt = NULL;
	m_ui8ButtonState = 0;

	m_pp2p -> MouseDataRead(&ui8Data);		// make sure mouse input buffer is empty
	m_pp2p -> MouseDataRead(&ui8Data);
	m_pp2p -> MouseDataRead(&ui8Data);

	return TRUE;
}


BOOL
Ps2Mouse::
IsrThreadProc(
	void
	)
{
	int			cBytes = 0;
	UINT8		ui8Data;
	INT8		buf[3];
	long		x,y;

	UINT8	ui8Buttons;
	UINT8	ui8XorButtons;

	unsigned int	evfMouse;

	SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_HIGHEST);

	m_hevInterrupt = CreateEvent(NULL, FALSE, FALSE, NULL);
	if ( m_hevInterrupt == NULL)
		{
		goto leave;
		}

	Read_SysIntr( TEXT("HARDWARE\\DEVICEMAP\\MOUSE"), &dwSysIntr_Mouse );
	if( !dwSysIntr_Mouse ) {
		goto leave;
	}


	if ( !InterruptInitialize(dwSysIntr_Mouse, m_hevInterrupt, NULL, 0) )
		{
		goto leave;
		}

	m_pp2p -> MouseInterruptEnable();

	for ( ; ; )
		{
wait_for_interrupt:
		if (WaitForSingleObject(m_hevInterrupt, (cBytes == 0 ? INFINITE : IN_PACKET_TIMEOUT)) == WAIT_TIMEOUT)
		{
			cBytes = 0;

			m_pp2p -> MouseDataRead(&ui8Data);		// make sure mouse input buffer is empty
			m_pp2p -> MouseDataRead(&ui8Data);
			m_pp2p -> MouseDataRead(&ui8Data);

			goto wait_for_interrupt;
		}

#ifdef WINCECODETEST
// AMC code: IST mouse entry
        *amc_ctrl_port = FUNCTION_NORMAL_ENTRY | IST_PS2MOUSE;
#endif
		if ( m_pp2p -> MouseDataRead(&ui8Data) )
			{
			if ( cBytes < 3 )
				{
				buf[cBytes++] = ui8Data;
				}
			if ( cBytes == 3 )
				{
				evfMouse = 0;
				ui8XorButtons = buf[0] ^ m_ui8ButtonState;
				if ( ui8XorButtons )
					{
					ui8Buttons = buf[0];

					if ( ui8XorButtons & 0x01 )
						{
						if ( ui8Buttons & 0x01 )
							{
							evfMouse |= MOUSEEVENTF_LEFTDOWN;
							}
						else
							{
							evfMouse |= MOUSEEVENTF_LEFTUP;
							}
						}

					if ( ui8XorButtons & 0x02 )
						{
						if ( ui8Buttons & 0x02 )
							{
							evfMouse |= MOUSEEVENTF_RIGHTDOWN;
							}
						else
							{
							evfMouse |= MOUSEEVENTF_RIGHTUP;
							}
						}

					if ( ui8XorButtons & 0x04 )
						{
						if ( ui8Buttons & 0x04 )
							{
							evfMouse |= MOUSEEVENTF_MIDDLEDOWN;
							}
						else
							{
							evfMouse |= MOUSEEVENTF_MIDDLEUP;
							}
						}
					m_ui8ButtonState = buf[0];
					}

				if ( buf[1] || buf[2] )
					{
					evfMouse |= MOUSEEVENTF_MOVE;
					}

				x = buf[1];
				y = -buf[2];
				mouse_event(evfMouse, x, y, 0, NULL);

				cBytes = 0;
				}
			}
		else
			{
			ERRORMSG(1,(TEXT("Error reading mouse data\r\n")));
			}

		InterruptDone(dwSysIntr_Mouse);
#ifdef WINCECODETEST
    // AMC code: mouse IST exit
        *amc_ctrl_port = FUNCTION_NORMAL_EXIT | IST_PS2MOUSE;
#endif

		}

leave:
	return TRUE;
}



DWORD
Ps2MouseIsrThread(
	Ps2Mouse	*pp2m
	)
{

	pp2m -> IsrThreadProc();

	return 0;
}



BOOL
Ps2Mouse::
IsrThreadStart(
	void
	)
{
	HANDLE	hthrd;

	hthrd = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)Ps2MouseIsrThread, this, 0, NULL);

	//	Since we don't need the handle, close it now.
	CloseHandle(hthrd);
	return TRUE;
}