/**************************************************************************************/
/*															Header for Cycfcntl.c																	*/
/*												Copyright(C)1999 Peter Armstrong														*/
/*																	Release 2.0																				*/
/**************************************************************************************/

/* structure for PC file & directory information, values returned by cyc_findfirst/next() */
struct c_find
{
	int		attrib;				/* attribute bits, see CA_ macros below */
	u_int	wr_time;			/* time file was last written to */
	u_int	wr_date;			/* date file was last written to */
	int		size;					/* size in bytes */
	char	name[13];			/* name in dos 8.3 format */
};

/* attribute bit values */
#define		CA_NORMAL		0x0000		/* ordinary file, no attributes */
#define		CA_RDONLY		0x0001		/* read only */
#define		CA_HIDDEN		0x0002		/* hidden file */
#define		CA_SYSTEM		0x0004		/* system file */
#define		CA_VOLID		0x0008		/* volume label */
#define		CA_SUBDIR		0x0010		/* sub-directory */
#define		CA_ARCH			0x0020		/* archive bit set */


/* cyc_creat() file creation flags */
#define		C_IREAD			0x0100 	/* read mode */
#define		C_IWRITE		0x0080 	/* write mode */
#define		C_IRDWR			C_IREAD|C_IWRITE   /* read/write mode */

/* cyc_open() file opening flags */
#define		C_RDONLY    0x0001
#define		C_WRONLY    0x0002
#define		C_RDWR      0x0004

#define		C_CREAT     0x0100  /* create and open file (new files are read-only) */
#define		C_TRUNC     0x0200  /* open with truncation */
#define		C_EXCL      0x0400  /* open only if non-existant */
#define		C_APPEND		0x0800  /* append data to end of file */

#define		C_BINARY		0x8000  /* open with this for all non-text files */
#define		C_TEXT			0x4000  /* CR-LF translation */


/* macros for cyc_lseek() origin */
#define		C_SEEK_CUR    1							/* current file position */
#define		C_SEEK_END    2							/* end of file */
#define		C_SEEK_SET    0							/* start of file */

/* return values for cyc_ping() */
#define		PNG_PC			1				/* connected to PC */
#define		PNG_PSX			0				/* connected to psx */
#define		PNG_NG		 -1				/* no response, not connected (at time of calling) */

#define		BLK_SIZE			4096				/* max write-out block size */
#define		RLE_BUF_SIZE	4096				/* size of RLE data buffer to allocate */

#define		RLE_BLK			0x8000			/* RLE block flag */
#define		RLE_HDR			0x8000			/* RLE in-block header */
#define		RLE_END			0x4000			/* RLE block end marker */


/* return values for block_read/write() */
#define		B_OK							1				/* read/write successful */
#define		B_CNT_ERROR				0				/* not connected to other psx */
#define		B_TIMEOUT				 -1				/* communications error (serial port time-out) */
#define		B_CMD_MISMATCH	 -2				/* write not matched by read & vice versa */
#define		B_ID_MISMATCH		 -3				/* different data identifiers */
#define		B_SIZE_MISMATCH	 -4				/* invalid block size */
#define		B_MEM_FAIL			 -5				/* malloc() failure on block_read()ing psx */

/* block commands from remote */
#define		B_READ						'R'				/* read block */
#define		B_WRITE						'W'				/* write block */
#define		B_CANX						'X'				/* cancel block command */


 
/* prototypes */
int		cyc_ping(void);
int		cyc_printf(char *format_str, ...);
int		cyc_findfirst(char *fname,int attr,struct c_find *ptr);
int		cyc_findnext(struct c_find *ptr);
int		cyc_getfileattr(char *fname, u_int *attrib);
int		cyc_setfileattr(char *fname, u_int attrib);
int		cyc_creat(char *fname,int pmode);
int		cyc_open(char *fname,int mode);
int		cyc_close(int fd);
long	cyc_lseek(int fd,int offset,int origin);
int		cyc_unlink(char *fname);
int		cyc_system(char *cmd);
long	cyc_tell(int fd);
int		cyc_eof(int fd);
int		cyc_read(int fd,char *buf,u_int num);
int		RLEtoRaw(int data_size);
int		cyc_write(int fd,char *buf,u_int num);
int		block_read(int id, char **buf, int size);
int		Send_RdBlockCmd(int id);
int		ReadIn_Block(char **buf, int size);
int		Read_Block(char *buf, int size);
int		block_write(int id, char *buf, int size);
int		Send_WrBlockCmd(int id);
int		WriteOut_Block(char *buf, int size);
int		Write_Block(char *buf, int size);
int		cyc_exit(void);