cdrom_drv.h

atmel at89c51snd1c mp3芯片方案源码

//cdrom_drv.h
#ifndef _CDROM_DRV_H_
#define _CDROM_DRV_H_

#include <absacc.h>


/////////////////////////////////////////////////////////////////
#define CDROM_FILE0 XBYTE[0x7010]            //硬盘数据寄存器          
#define CDROM_FILE1 XBYTE[0x7011]            //错误/特征寄存器
#define CDROM_FILE2 XBYTE[0x7012]            //扇区数寄存器
#define CDROM_FILE3 XBYTE[0x7013]            //扇区号寄存器
#define CDROM_FILE4 XBYTE[0x7014]            //柱面号寄存器L
#define CDROM_FILE5 XBYTE[0x7015]            //柱面号寄存器H
#define CDROM_FILE6 XBYTE[0x7016]            //驱动器/磁头寄存器
#define CDROM_FILE7 XBYTE[0x7017]            //状态/命令寄存器

sbit CD_RST   = P5 ^ 0;
sbit CD_INTRQ = P3 ^ 2;




#define BSYMASK    0x80
#define DRDYMASK   0x40
#define DRQMASK    0x08
#define ERRMASK    0x01
#define ILTMASK    0x01

//////////////////////////////////////////////////////////////////////
#define CMD_TESTUNITREADY    0
#define CMD_READTOC          1
#define CMD_MODESENSE        2
#define CMD_MODESELECT       3
#define CMD_PAUSE            4
#define CMD_RESUME           5
#define CMD_STOP             6
#define CMD_START            7
#define CMD_OPEN             8
#define CMD_CLOSE            9
#define CMD_READSUBCH        10


//////////////////////////////////////////////////////////////////////
#define STATUS_TESTUNITREADY   0
#define STATUS_READTOC         1
#define STATUS_PLAYCD          2
#define STATUS_PAUSECD         3
#define STATUS_STOPCD          4
#define STATUS_OPENCD          5
#define STATUS_CLOSECD         6



//////////////////////////////////////////////////////////////////////
#define CDROM_VOLUP            1
#define CDROM_VOLDN            0

typedef struct
{
   INT8U u8Track;
   INT8U u8Min;
   INT8U u8Sec;
}str_cdinfo;



void cdrom_init(void);
void cdrom_task(void);
bit  cd_getdata(INT8U *pData, INT8U u8Num);
void cd_setcommand(INT8U u8Command);
void cd_command(INT8U u8Command);



#endif /* _CDROM_DRV_H_ */