tdm.h

ESS3890+SL原代码（1*16内存）

/* Copyright 1997, ESS Technology, Inc.					*/
/* SCCSID @(#)tdm.h	4.6 05/12/04 */

#ifndef __TDM_H__
#define __TDM_H__

#ifndef _COMMON_H_
#include "common.h"
#endif /* _COMMON_H_ */

/*
 * Notice that endian settings for video data are just oppposit to the 
 * real data format since transport automaticaly flips the endian.
 * For CDDA, endian settings are the same as data format since we
 * flip it again at the output of the transport.
 */
typedef struct {
    unsigned short slot;	/* tdmslot  value			*/
    unsigned short delay;	/* tdmdelay value			*/
    unsigned short ctl;		/* tdmctl   value			*/
    unsigned short low;		/* Don't turn on TDM if lower than this */
} TDM_settings;

typedef struct {
    TDM_settings cd[2];
} TDM_SETTING;

/****************************************
 * Global variables define		*
 ****************************************/
GBLDEF0(int TDM_hw_error);                      /* Time of TDM sync error*/
GBLDEF_0(int TDM_isCDDA, 0);			/* 0: VCD; 1: CDDA	*/
#ifdef MP3
GBLDEF_0(int TDM_expect_stop, 0);
#endif
GBLDEF_0(int TDM_cntInterrupt, 0);
GBLDEF_0(volatile unsigned int currCDtime, 0);	/* mm:ss:ff		*/
GBLDEF_0(volatile int end_of_still, 0);		/* End 0f still picture */
GBLDEF_0(int TDM_needs_flush, 0);

GBLDEF_0(volatile int C2PO_interrupt, 0);       /* C2PO interrupt flag */
GBLDEF_0(volatile int C2PO_audio_error, 0);     /* audio fram C2PO error */
GBLDEF_0(volatile int C2PO_video_error, 0);     /* video pack C2PO error */

#ifdef XPORT11
GBLDEF_0(int TDM_most_recent_video, 0); 	/* Most recent video	*
						 * type (E0/E1 or E2)	*/
GBLDEF_0(int TDM_tracknumber, 0);		/* Track number		*/
GBLDEF_0(int TDM_send_skip, 0);			/* Send skip in background*/
GBLDEF_0(int TDM_skip_sent, 0);			/* Skip sent or not	*/
GBLDEF_0(int TDM_setIsCDDA, 0);			/* To determine VCD/CDDA*/
#endif /* XPORT11 */

#ifdef FIXEFM
/* Only used for EFM->TDM board */
GBLDEF_0(int TDM_skip_sectors, 0);		/* When non-zero, don't	*
						 * decode the data.	*/
#endif /* FIXEFM */

#ifdef PLAY20
GBLDEF_0(unsigned int begCDtime, 0);
GBLDEF(unsigned int endCDtime, 0x999999);
GBLDEF(unsigned int second_endCDtime, 0x999999);
GBLDEF_0(unsigned int stopCDtime, 0);		/* Last read in sector	*/
#endif /* PLAY20 */

GBLDEF_0(unsigned int TDM_trigger, 0);		/* trigger bit in submod*/
GBLDEF_0(unsigned volatile int TDM_found_begCDtime, 0);
                                          /* set 1 when begCDtime is found. */

GBLDEF(unsigned char TDM_expectBreak, 1);	/* Expect time to break?*/
GBLDEF_0(unsigned int end_of_play, 0);		/* endCDtime is met	*/
GBLDEF_0(unsigned int end_of_sequence, 0);	/* Seen 000001b7	*/

/* ANTI_SHOCK..enable for FAE's */
#ifdef ANTI_SHOCK 
GBLDEF_0(int c2po, 0);
GBLDEF_0(unsigned int c2po_timeout, 0);
#endif /* ANTI_SHOCK */


void	TDM_init(void);
void	TDM_turn_on(void);
void	TDM_interrupt_service(void);
void	TDM_force_stop(int save);

#endif /* __TDM_H__ */