zmdm.h

国产CPU－龙芯（loongson)BIOS源代码

/*
 * zmdm.h
 * zmodem primitives prototypes and global data
 * (C) Mattheij Computer Service 1994
 */

#ifndef _ZMDM_H

#define _ZMDM_H

#ifdef ZMDM
#define EXTERN
#else
#define EXTERN extern
#endif

#include <errno.h>

#define TRUE  1
#define FALSE 0

#define ENDOFFRAME 2
#define FRAMEOK    1
#define TIMEOUT   -1	/* rx routine did not receive a character within timeout */
#define INVHDR    -2	/* invalid header received; but within timeout */
#define INVDATA   -3	/* invalid data subpacket received */
#define ZDLEESC 0x8000	/* one of ZCRCE; ZCRCG; ZCRCQ or ZCRCW was received; ZDLE escaped */

#define HDRLEN     5	/* size of a zmodme header */

EXTERN int in_fp;	/* input file descriptor */
EXTERN int out_fp;	/* output file descriptor */
EXTERN unsigned char rxd_header[ZMAXHLEN];	/* last received header */
EXTERN int rxd_header_len;			/* last received header size */

/*
 * receiver capability flags
 * extracted from the ZRINIT frame as received
 */

EXTERN int can_full_duplex;
EXTERN int can_overlap_io;
EXTERN int can_break;
EXTERN int can_fcs_32;
EXTERN int escape_all_control_characters;	/* guess */
EXTERN int escape_8th_bit;

EXTERN int use_variable_headers;		/* use variable length headers */

/*
 * file management options.
 * only one should be on
 */

EXTERN int management_newer;
EXTERN int management_clobber;
EXTERN int management_protect;

void
fd_init(FILE *);				/* make the io channel raw */

void
fd_exit(void);				/* reset io channel to state before zmtx was called */

void
tx_hheader(unsigned char * buf,int n);

void
tx_bheader(unsigned char * buf,int n);

int
rx_header(int to);			/* receive any header with timeout in milliseconds */

void rx_purge(void);
void tx_raw(int c);
void tx_esc(int c);
void tx(unsigned char c);
void tx_flush(void);
void tx_nibble(int n);
void tx_hex(int h);
void tx_hex_header(unsigned char *p);
void tx_bin32_header(unsigned char *p);
void tx_bin16_header(unsigned char *p);
void tx_header(unsigned char *p);
void tx_32_data(int sub_frame_type, unsigned char *p, int l);
void tx_16_data(int sub_frame_type, unsigned char *p, int l);
void tx_data(int sub_frame_type, unsigned char *p, int l);
void tx_pos_header(int type, long pos);
void tx_znak(void);
void tx_zskip(void);
void alrm(int a);
int rx_poll(void);
int rx_raw(int to);
int rx(int to);
int rx_32_data(unsigned char *p, int *l);
int rx_16_data(register unsigned char *p, int *l);
int rx_data(unsigned char *p, int *l);
int rx_nibble(int to);
int rx_hex(int to);
void rx_bin16_header(int to);
void rx_hex_header(int to);
void rx_bin32_header(int to);
int rx_header_raw(int to, int errors);
int rx_header_and_check(int timeout);
void cleanup(void);
void show_progress(char *name);
int receive_file_data(FILE *, char *, char *, int );
void tx_zrinit(void);
int receiveFile(FILE *, char *, int , int );

#endif