audasc.c

来自「台湾凌阳方案300万数码相机源代码」· C语言 代码 · 共 75 行

/*++

Copyright (c) 2001 Sunplus Technology Co., Ltd.

Module Name:

        audasc.c

Abstract:

        Module related to alternate setting change of audio interface

Environment:

        Keil C51 Compiler

Revision History:

        08/28/2001      Chi-Yeh Tsai    created                 

--*/

//=============================================================================
//Header file
//=============================================================================
#include "general.h"

#if (AUDIO_OPTION == 1)

#include "audio.h"
#include "audasc.h"

//=============================================================================
//Symbol
//=============================================================================
//-----------------------------------------------------------------------------
//Constant
//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
//Variable
//-----------------------------------------------------------------------------

//=============================================================================
//Program
//=============================================================================
//-----------------------------------------------------------------------------
//AUDASC_Packet
//-----------------------------------------------------------------------------
/*++

Routine Description:

        process alternate setting change of audio interface

Arguments:

        none

Return Value:

        none

--*/
void AUDASC_Packet(void) USING_1
{
        BYTE audAS;

        audAS = L2_GetUsbAudioAlternateSetting();

        L2_WrAC97Reg(K_AC_Index_SampleRate0, AudAS_SampleRate[audAS]);
}

#endif