analog_audio.h

1. 8623L平台

/*
 *
 * Copyright (c) 2001-2007 Sigma Designs, Inc. 
 * All Rights Reserved. Proprietary and Confidential.
 *
 */

/**
  @file   analog_video.h
  @brief  Interface to access an analog video capture port
  
  @author Christian Wolff, Sean.Sekwon.Choi
  @date   2007-07-18
*/

#ifndef __ANALOG_AUDIO_H__
#define __ANALOG_AUDIO_H__

// internal state of the analog video capture port
struct cap_analog_audio_instance;

RMstatus cap_analog_audio_open(	struct RUA *pRUA, 
				struct cap_analog_audio_instance **ppAnalogAudio, 
				struct cap_chip_instance *pChip);

/*
RMstatus cap_analog_audio_open(
	struct RUA *pRUA, 
	struct cap_analog_audio_instance **ppAnalogAudio, 
	enum cap_chip analog_audio_chip,
	RMuint32 I2CModuleID,  // emhwlib Module ID of the I2C bus access5
	struct EMhwlibI2CDeviceParameter *pI2CDevice,
	RMuint32 XtalClock);
*/

RMstatus cap_analog_audio_close(struct cap_analog_audio_instance *pAnalogAudio);

RMstatus cap_analog_audio_tristate(struct cap_analog_audio_instance *pAnalogAudio);

/*
RMstatus cap_analog_audio_select_input(struct cap_analog_audio_instance *pAnalogAudio,
				       const struct cap_access *pInput);
*/

RMstatus cap_analog_audio_select_input(struct cap_analog_audio_instance *pAnalogAudio,
				       enum cap_board board,
				       enum cap_audio_input audio_input, 
				       RMuint32 audio_input_num );

RMstatus cap_analog_audio_setup_output(struct cap_analog_audio_instance *pAnalogAudio, 
				       struct cap_update *pUpdate);

/*** Interrupt handling functions ***/

/* Returns RM_OK if cap_analog_audio_handle_int() needs to be called */
RMstatus cap_analog_audio_check_int(struct cap_analog_audio_instance *pAnalogAudio);

/* check and handle interrupts and/or other changes on the chip, 
   fill in update information to pUpdate */
RMstatus cap_analog_audio_handle_int(struct cap_analog_audio_instance *pAnalogAudio, 
				     struct cap_update *pUpdate);

#endif  // __ANALOG_AUDIO_H__