MP3编解码原程序以及设计资料
源代码在线查看： mp3_drv.h
/*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_ */
