www.pudn.com > slow.zip > modem.h

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	modem.h 
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#define global 
#define unless(x)   if(!(x)) 
#define until(x)    while(!(x)) 
 
#define BAUDRATE    2400		    /* symbols per sec (V.29)	      */ 
#define SYMBLEN	    (SAMPLERATE / BAUDRATE) /* num. samples per symbol (V.29) */ 
 
#define HDLC_FLAG   (-1) 
#define HDLC_ABORT  (-2) 
 
#define DIAL_TONE   1 
#define CONN_TONE   2 
 
#define NULL	    0 
 
/* cmd line and other options */ 
#define opt_fax	    0x001   /* -fax : fax call		  */ 
#define opt_mod	    0x002   /* -V.. : modem call	  */ 
#define opt_org	    0x004   /* originate (telno given)	  */ 
#define opt_ans	    0x008   /* -ans : answer		  */ 
#define opt_bps	    0x010   /* -bps : bits per sec	  */ 
#define opt_v	    0x020   /* -v : verbose		  */ 
#define opt_v8	    0x100   /* -V8 : session control	  */ 
#define opt_H	    0x200   /* high resolution		  */ 
 
union word	/* for message routines */ 
  { word() { } 
    word(char *sx) { s = sx; } 
    word(int ix)   { i = ix; } 
    char *s; int i; 
  }; 
 
enum vmode	/* protocols */ 
  { V21o, V21a, V23o, V23a,	/* handled here */ 
    V32o,			/* handled by fmodem */ 
    V34o,			/* handled by zmodem */ 
    V29,			/* fax mode */ 
  }; 
 
typedef unsigned char uchar; 
typedef unsigned int uint; 
typedef unsigned short ushort; 
 
struct complex;		/* def'd in complex.h */ 
 
typedef void (*proc)(); 
 
extern int errno;			    /* from sys lib */ 
 
extern int numpages;			    /* from main */ 
extern uint options, bitrates;		    /* from main */ 
extern vmode veemode;			    /* from main */ 
 
extern "C" 
  { int time(int*), atoi(char*); 
    int open(char*, uint); 
    void close(int), atexit(proc), sleep(int); 
    proc set_new_handler(proc); 
  }; 
 
inline bool seq(char *s1, char *s2) { return strcmp(s1,s2) == 0;			     } 
inline float sqr(float x)	    { return x*x;					     } 
inline float fsgn(float x)	    { return (x > 0.0f) ? +1.0f : (x < 0.0f) ? -1.0f : 0.0f; } 
 
extern void dialnumber(char*);						/* from dial	 */ 
extern void waitfortone(int);						/* from progress */ 
extern void startsession();						/* from session	 */ 
extern void becomemodem();						/* from modem	 */ 
extern void becomefax();						/* from fax	 */ 
extern void initdoc(), readdoc(), sendpage(int, int);			/* from doc	 */ 
extern void receivepage(int), writedoc();				/* from doc	 */ 
 
extern void inittx_fsk(vmode);						/* from fsktx	 */ 
extern void putasync(int), putsync(int);				/* from fsktx	 */ 
 
extern void initrx_fsk(vmode);						/* from fskrx	 */ 
extern int getasync(), getsync();					/* from fskrx	 */ 
 
extern void inittx_v29();						/* from v29tx	 */ 
extern void putbit(int);						/* from v29tx	 */ 
 
extern void initrx_v29();						/* from v29rx	 */ 
extern int getbit();							/* from v29rx	 */ 
 
extern void sendfreq(float, float), sendfreqs(float, float, float);	/* from common	 */ 
extern void sendpause(float);						/* from common	 */ 
extern void giveup(char*, word = 0, word = 0, word = 0);		/* from common	 */ 
extern void infomsg(char*, word = 0, word = 0, word = 0);		/* from common	 */