syncregio.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 _SYNCREGIO_H
#define _SYNCREGIO_H

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

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

#include "driverI2C.h"


#define FIRMWARE_STOP_REASON_CROSSBAR          1
#define FIRMWARE_STOP_REASON_HW_INIT           2
#define FIRMWARE_STOP_REASON_CHANNEL_CHANGE    4


class SyncRegIo
{
public:
    SyncRegIo(DriverI2C *p_i2c);
    ~SyncRegIo();

    VOID lock();
    VOID unlock();

    VOID stopAudioFirmware(DWORD firware_stop_reason);
    VOID restartAudioFirmware(DWORD firware_stop_reason);
    NTSTATUS setCommandFormat(BOOLEAN first,BOOLEAN last);

    NTSTATUS writeByte(WORD address, BYTE value);
    NTSTATUS readByte(WORD address, PBYTE p_value);

    NTSTATUS writeDword(WORD address, DWORD value);
    NTSTATUS readModifyWriteDword(WORD address, DWORD mask, DWORD value);

    NTSTATUS writeMultiByteNoLock(WORD register_address, BYTE* p_value, DWORD value_num);
    NTSTATUS writeMultiByte(WORD register_address, BYTE* p_value, DWORD value_num);
    

    NTSTATUS readDword(WORD address, PDWORD p_value);

    DWORD Set_Field(DWORD field_mask, DWORD data);

    NTSTATUS writeAudioFirmware(HANDLE file_handle,DWORD rev_id);

    VOID verifyAudioFirmware(HANDLE file_handle);

    NTSTATUS RegMaskWrite(BYTE size, WORD register_address,BYTE bit_start,BYTE bit_end, DWORD value);

    KMUTEX* getSyncRegIOMutex() {return &_mutex;}

//protected:
    NTSTATUS writeByteNoLock(WORD address, BYTE value);
    NTSTATUS readByteNoLock(WORD address, PBYTE p_value);
    NTSTATUS writeDwordNoLock(WORD address, DWORD value);
    NTSTATUS readDwordNoLock(WORD address, PDWORD p_value);

private:
    typedef enum{
        FIRMWARE_STATE_ENABLED,
        FIRMWARE_STATE_NOT_STARTED,
        FIRMWARE_STATE_STOPPED
    }FIRMWARE_STATE;

    DriverI2C*      _p_i2c;
    KMUTEX          _mutex;
    FIRMWARE_STATE  _firmware_state;
    DWORD           _chip_rev;

    DWORD           _firmware_stop_reasons;
};

#endif