audio.h

PEAKAUDIO用于EV2板的MCU控制源码

/*************************************************************************

 Audio.h

 This include file declares routines to control the audio on the CobraNet 
 Eval board and defines constants associated with the control of audio.

--Copyright (C) 2001-2004 by Cirrus Logic Inc. All Rights Reserved
*************************************************************************/

#ifndef Audio_h
#define Audio_h

#define cDAC_REG_ptr		0x8008		//DAC audio routing address
#define cDAC_MUTE_ptr		0x8009		//DAC Mute address
#define cDAC_MODE_ptr		0x800A		//DAC Mode address
#define cDAC_RESET_ptr	0x800B		//DAC reset address
#define cADC_SLAVE_ptr	0x8011		//ADC slave/master address
#define cAES_REG_ptr		0x8018		//AES audio routing address
#define cAES_MUTE_ptr		0x8019		//AES mute address
#define cSSI_REG0_ptr		0x8020		//SSI 0 audio routing address
#define cSSI_MUTE0_ptr	0x8021		//SSI 0 mute address
#define cSSI_REG1_ptr		0x8028		//SSI 1 audio routing address
#define cSSI_MUTE1_ptr	0x8029		//SSI 1 mute address
#define cSSI_REG2_ptr		0x8030		//SSI 2 audio routing address
#define cSSI_MUTE2_ptr	0x8031		//SSI 2 mute address
#define cSSI_REG3_ptr		0x8038		//SSI 3 audio routing address
#define cSSI_MUTE3_ptr	0x8039		//SSI 3 mute address
#define cGAIN_ptr				0x8070		//sinewave gain address
#define cFREQ_ptr				0x8078		//sinewave frequency address

#define cAD_CAL_ADDR_ptr	0x8010	//A/D calibration address
#define cADCAL_OFF				0
#define cADCAL_ON					1
#define cADCAL_CHECK			2

#define cAUDIO_SSI0	0
#define cAUDIO_SSI1	1
#define cAUDIO_SSI2	2
#define cAUDIO_SSI3	3
#define cAUDIO_ADC1	4
#define cAUDIO_DAC	4
#define cAUDIO_ADC2	6
#define cAUDIO_AES	5
#define cAUDIO_SINE	7
#define	cAUDIO_MUTE	8

#define cMUTE_ON					0
#define cMUTE_OFF					1
#define cDAC_RESET_ON 		0
#define cDAC_RESET_OFF 		1
#define cDAC_SINGLE_DEEM	0
#define cDAC_SINGLE_SPEED	1
#define cDAC_DOUBLE_SPEED	3
#define cDAC_QUAD_SPEED		2
#define cMASTER						0
#define cSLAVE						1

//sinewave gain parameters
#define cGAIN_0DB					0
#define cGAIN_MINUS6			1
#define cGAIN_MINUS12			2
#define cGAIN_MINUS18			3

//audio line command selections
#define cAUDIO_SAMPLERATE		0
#define cAUDIO_CALIBRATE		1
#define cAUDIO_GAIN					2
#define cAUDIO_FREQUENCY		3

//audio samplerate line command choices
#define cAUDIO_48K					0
#define cAUDIO_96K					1
#define cAUDIO_48KD					2
#define cAUDIO_192K					3

#define cFREQ_FUNDAMENTAL	1

extern code struct command_item_t route_command;
extern code struct command_item_t audio_command;

extern void audio_put_route( unsigned char source, char * target );
extern char audio_get_route( char * target );
extern void audio_mute( char * target );
extern void audio_unmute( char * target );
extern void audio_DACMode( unsigned char the_mode );
extern void audio_DACreset( unsigned char unresetit );
extern void audio_ADCCaste( unsigned char the_caste );
extern char ad_cal( unsigned char the_op );
extern void sine_gain( unsigned char the_gain );
extern void sine_freq( unsigned char the_frequency );
#endif