sig.h

代码有点长,需细心阅读,仅供影音视听类产品的开发人员参考

#ifndef	__SIG_H

/*
**
**
**
** NOTE:
**
** a typical system should be like this..
**
**	do 
**	{
**	  srv_...
**	  if (soft_intr_flag)
**	  {
*8	    interrupt-handler();
**	  }
**	} while (!finished);
**
**
*/

#define	INTR_PROG_END		(1<<16)
#define	INTR_SEQ_HEADER		(1<<15)
#define	INTR_SEQ_END		(1<<14)
//#define INTR_GOP      (1<<13)
//#define INTR_I_PIC      (1<<12)
//#define INTR_A_PIC      (1<<11)
#define	INTR_CD_FAILURE		(1<<9)
#define	INTR_AUTOPAUSE		(1<<8)
#define	INTR_EOF			(1<<7)

#define	INTR_TIMEOUT		(1<<6)
#define	INTR_TRACK_CHANGE	(1<<5)
#define	INTR_FOUND			(1<<4)
#define	INTR_VFD			(1<<3)
#define	INTR_IRKEY			(1<<2)
#define	INTR_TRAYIN			(1<<1)
#define	INTR_TRAYOUT		(1<<0)

EXTERN UINT32 softintr_mask;
EXTERN UINT32 softintr_flag;

#define	SetIntrMask(x)		(softintr_mask = (x))
#define	GetIntrMask()		(softintr_mask)
#define	SetIntrFlag(x)		(softintr_flag = (x))
#define	GetIntrFlag()		(softintr_flag)

#define	INTR_MASK_CDROM		\
				( INTR_TIMEOUT \
				| INTR_TRAYOUT)

#define	INTR_MASK_NORMAL	( INTR_AUTOPAUSE \
				| INTR_EOF \
				| INTR_PROG_END \
				| INTR_TRACK_CHANGE \
				| INTR_TIMEOUT \
				| INTR_VFD \
				| INTR_IRKEY \
				| INTR_TRAYOUT)

#define	INTR_MASK_NORMAL_LINEAR	( INTR_TIMEOUT \
				| INTR_PROG_END \
				| INTR_TRACK_CHANGE)

#define	INTR_MASK_NORMAL_CDDA	( INTR_EOF \
				| INTR_TRACK_CHANGE \
				| INTR_TIMEOUT \
				| INTR_VFD \
				| INTR_IRKEY \
				| INTR_TRAYOUT)

#define	INTR_MASK_NORMAL_MP3	( INTR_EOF \
				| INTR_TRACK_CHANGE \
				| INTR_TIMEOUT \
				| INTR_VFD \
				| INTR_IRKEY \
				| INTR_TRAYOUT)

#define	INTR_MASK_READTOC	( INTR_TIMEOUT \
				| INTR_VFD \
				| INTR_IRKEY \
				| INTR_TRAYOUT)
#if 0
#define	INTR_MASK_IDLE		( INTR_TIMEOUT \
				| INTR_VFD \
				| INTR_IRKEY \
				| INTR_TRAYOUT)
#endif

#define	INTR_MASK_NORMAL_ROM	( INTR_EOF	\
				| INTR_PROG_END \
				| INTR_SEQ_END	\
				| INTR_TIMEOUT	\
				| INTR_VFD	\
				| INTR_IRKEY )

#endif/*__SIG_H*/