mp3_drv.h

ATMEL公司AT89C51SND1为主控制器MP3源代码

/*H**************************************************************************
* NAME:         mp3_drv.h         
*----------------------------------------------------------------------------
* Copyright (c) 2003 Atmel.
*----------------------------------------------------------------------------
* RELEASE:      snd1c-refd-nf-4_0_3      
* REVISION:     1.7     
*----------------------------------------------------------------------------
* PURPOSE:
* This file contains the MP3 decoder definition
*****************************************************************************/

#ifndef _MP3_DRV_H_
#define _MP3_DRV_H_

/*_____ I N C L U D E S ____________________________________________________*/


/*_____ M A C R O S ________________________________________________________*/


/*_____ D E F I N I T I O N ________________________________________________*/


/*_____ D E C L A R A T I O N ______________________________________________*/

void    mp3_init      (void);
void    mp3_set_prio  (Byte);
void    mp3_stop      (void);
void    mp3_restart   (void);

#define Mp3_enable()          (MP3CON |= MSK_MPEN)
#define Mp3_disable()         (MP3CON &= ~MSK_MPEN)
#define Mp3_enable_int()      (EMP3 = 1)
#define Mp3_disable_int()     (EMP3 = 0)
#define Mp3_mask_int_set(i)   (MP3CON |= (i))
#define Mp3_mask_int_clr(i)   (MP3CON &= ~(i))
#define Mp3_ack_int()         (ACC = MP3STA)
#define Mp3_skip_crc_error()  (MP3CON |= MSK_CRCEN)
#define Mp3_play_crc_error()  (MP3CON &= ~MSK_CRCEN)
#define Mp3_set_bass_boost()  (MP3CON |= MSK_MPBBST)
#define Mp3_clr_bass_boost()  (MP3CON &= ~MSK_MPBBST)
#define Mp3_load(d)           (MP3DAT = d)
#define Mp3_set_clock(c)      (MP3CLK = c)
#define Mp3_frame_int()       (MPREQ)
#define Mp3_frame_request()   ((MP3STA1 & MSK_MPFREQ) == MSK_MPFREQ)
#define Mp3_byte_request()    ((MP3STA1 & MSK_MPBREQ) == MSK_MPBREQ)
#define Mp3_set_right_vol(v)  (MP3VOR = v)
#define Mp3_set_left_vol(v)   (MP3VOL = v)
#define Mp3_set_bass(v)       (MP3BAS = v)
#define Mp3_set_medium(v)     (MP3MED = v)
#define Mp3_set_treble(v)     (MP3TRE = v)
#define Mp3_get_right_vol()   ((Byte)MP3VOR)
#define Mp3_get_left_vol()    ((Byte)MP3VOL)
#define Mp3_get_bass()        ((Byte)MP3BAS)
#define Mp3_get_medium()      ((Byte)MP3MED)
#define Mp3_get_treble()      ((Byte)MP3TRE)
#define Mp3_get_mpeg()        (MP3STA & MSK_MPVER)
#define Mp3_get_fs()          (MP3STA & MSK_FS)
#define Mp3_play_error()      ((MP3STA & (MSK_ERRLAY | MSK_ERRSYN)) != 0)
#define Mp3_set_full()        (MP3DBG |= MSK_MPFULL)
#define Mp3_reset_full()      (MP3DBG &= ~MSK_MPFULL)



#endif  /* _MP3_DRV_H_ */