keyq.h

完整的基于Conxant平台的USB电视棒的WIN驱动程序。

/*+++ *******************************************************************\ 
* 
*  Copyright and Disclaimer: 
*  
*     --------------------------------------------------------------- 
*     This software is provided "AS IS" without warranty of any kind, 
*     either expressed or implied, including but not limited to the 
*     implied warranties of noninfringement, merchantability and/or 
*     fitness for a particular purpose.
*     --------------------------------------------------------------- 
*   
*     Copyright (c) 2008 Conexant Systems, Inc. 
*     All rights reserved. 
*
\******************************************************************* ---*/ 

#ifndef __KEYQ_H__
#define __KEYQ_H__

extern "C"
{
    #include <wdm.h>
}

#include <windef.h>
#include <ks.h>
#include <ksmedia.h>

typedef struct 
{
    DWORD dwCommand;
    DWORD dwAddress;
}KEYSTROKE;

class KeystrokeQueue{

public:
    
    VOID Insert(KEYSTROKE& Keystroke);
    
    KEYSTROKE Remove();
    
    VOID Flush();
    
    KeystrokeQueue(USHORT Size);

    ~KeystrokeQueue();

    BOOLEAN IsEmpty(){return (m_ReadIndex == -1);}

	NTSTATUS init();
    
protected:
    USHORT m_BufferSize;

    KEYSTROKE *m_Buffer;

    USHORT m_ReadIndex;

    USHORT m_WriteIndex;

    KSPIN_LOCK m_SpinLock;

};
#endif