headset_volume.h

bc5_stereo：bluetooth stereo Headset CODE 支持A2DP HSP 和 HSP 。可作为车载免提。BlueLab 2007环境下编译

/****************************************************************************
Copyright (C) Cambridge Silicon Radio Ltd. 2004-2007

FILE NAME
    headset_volume.h
    
DESCRIPTION

    
*/

#ifndef HEADSET_VOLUME_H
#define HEADSET_VOLUME_H


#include "headset_private.h"


#define VOL_DEFAULT_VOLUME_LEVEL (0x08)
#define VOL_MAX_VOLUME_LEVEL (0x0f)


/****************************************************************************
NAME 
    VolumeInit

DESCRIPTION
    Initialises the volume.

*/
void VolumeInit ( hsTaskData * pApp );


/****************************************************************************
NAME 
    VolumeInitHfp

DESCRIPTION
    Initialises the HFP volume.

*/
void VolumeInitHfp ( hsTaskData * pApp );

/****************************************************************************
NAME 
    VolumeToggleMute

DESCRIPTION
    Toggles the mute state.

*/
void VolumeToggleMute ( hsTaskData * pApp );


/****************************************************************************
NAME 
    VolumeMuteOn

DESCRIPTION
    Enables Mute.

*/
void VolumeMuteOn ( hsTaskData * pApp ) ;


/****************************************************************************
NAME 
    VolumeMuteOff

DESCRIPTION
    Disables Mute.

*/
void VolumeMuteOff ( hsTaskData * pApp ) ;


/****************************************************************************
NAME 
    VolumeUp

DESCRIPTION
    Increments volume.
    
*/
void VolumeUp ( hsTaskData * pApp ) ;


/****************************************************************************
NAME 
    VolumeDown

DESCRIPTION
    Decrements volume.

*/
void VolumeDown ( hsTaskData * pApp ) ;

/****************************************************************************
NAME 
    VolumeStoreLevels

DESCRIPTION
    Store the volume levels in PS.

*/
void VolumeStoreLevels ( hsTaskData * pApp ) ;


/****************************************************************************
NAME 
    VolumeSendSettingsToAG

DESCRIPTION
    Send local speaker and mic volume levels to the connected AG .

*/
void VolumeSendSettingsToAG(hsTaskData * pApp, bool send_speaker, bool send_mic);


/****************************************************************************
NAME 
    VolumeGetHeadsetVolume

DESCRIPTION
    Retrieve the current headset volume. 

RETURNS
	Returns FALSE if no volume was retrieved.

*/
bool VolumeGetHeadsetVolume(hsTaskData * pApp, uint16 * actVol, bool * avAudio);


/****************************************************************************
NAME 
    VolumeSetHeadsetVolume

DESCRIPTION
    Sets the current headset volume. This volume can also be sent to the connected AG. 

RETURNS
	Returns FALSE if no volume was retrieved.

*/
void VolumeSetHeadsetVolume(hsTaskData * pApp, uint16 actVol, bool avAudio, bool sendVolToAg);


/****************************************************************************
NAME 
    VolumeRetrieveGain

DESCRIPTION
    Retrieve the gain to be set based on the index table used by the application. 

RETURNS
	Returns the gain to be set.

*/
uint16 VolumeRetrieveGain( uint16 index , bool avAudio );


#endif