ps2port.hpp

Ep93XX TionProV2 BSP

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
/*

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.

*/

#ifndef __PS2PORT_HPP_INCLUDED__
#define __PS2PORT_HPP_INCLUDED__



#include <windows.h>

/*++

Ps2Port:

This is a very simplistic i8042 interface.

It does not provide a complete interface to the i8042 chip.  It is 
intended to provide only basic keyboard and mouse support.


--*/

#define GPIO_PBDR_OFFSET                  0x0004
#define GPIO_PBDDR_OFFSET                 0x0014

class Ps2Port
{
	CRITICAL_SECTION	m_csWrite;

	HANDLE				m_hDevEvent;

	int					m_cEnterWrites;
	BOOL				m_bMouseFound;
	BOOL				m_bIntelliMouseFound;

	UINT8				m_ui8CmdByte;

	BOOL				m_fEnableWake;


	void	CommandWrite( UINT8	cmd8042 )
	{
		WritePort(  cmd8042 );
	}

	void 	WritePort(  UINT8	data );
	BOOL 	ReadPort( PUCHAR pui8Data );

	UINT8	MouseId( void );

	void   SetModeIntelliMouse ( void );

public:

	BOOL	MouseTest(	void );

	BOOL	Initialize(	unsigned int	iopBase	);

	BOOL	KeyboardInterfaceTest(	void );

	BOOL	KeyboardReset(	void );

	void	KeyboardLights(	unsigned int	fLights	);

	BOOL	KeyboardCommandPut(	UINT8	ui8Cmd	);

	BOOL	KeybdDataRead(	UINT8	*pui8Data	);

	BOOL	MouseDataRead(	UINT8	*pui8Data	);
	BOOL   bIntelliMouseFound( void );

	// Note: On a PS/2 controller, if you have both a keyboard and mouse
	// connected and one is set to wake but the other is not, there is a good
	// chance that neither will wake the system. If the non-wake source 
	// has activity, its data will fill the controller's output buffer, but it will not
	// be removed. Then, if the wake source has activity, it will wait for the
	// controller to accept its data, but this will not happen until the data in
	// the controller's output buffer is read. Thus, no activity on either device 
	// will wake the system. Moral: Have both the keyboard and mouse set as
	// wake sources or neither set as wake sources. We enforce that here.

	HANDLE GetDeviceEvent( void )
	{
		return m_hDevEvent;
	}
	void InterruptDone( void );

};


#endif