/* ------------------------------------------------------------------------ */ /* sstfoss.c */ /* */ /* Revision 5 FOSSIL interface layer */ /* CopyRight (C) 1991,1992 Steven Lutrov. All rights reserved. */ /* ------------------------------------------------------------------------ */ #define F_SIGNATURE 0x1954 #define F_SETDTR 0x0001 #define F_RESETDTR 0x0000 #define F_NULL 0xFFFF /* ------------------------------------------------------------------------ */ /* Port Status flags */ /* ------------------------------------------------------------------------ */ #define F_RXCHARS 0x0100 /* Characters in input buffer */ #define F_RXOVER 0x0200 /* Receive buffer overrun */ #define F_MASK 0x0008 /* Bits always set */ #define F_TXCHARS 0x2000 /* Transmit buffer not full */ #define F_TXEMPTY 0x4000 /* Transmit buffer is empty */ #define F_CARRIER 0x0080 /* Carrier detect is high */ /* ------------------------------------------------------------------------ */ /* Port IDs */ /* ------------------------------------------------------------------------ */ #define F_COM1 0x0000 /* Com port 1 */ #define F_COM2 0x0001 /* Com port 2 */ #define F_COM3 0x0002 /* Com port 3 */ #define F_COM4 0x0003 /* Com port 4 */ #define F_CONSOLE 0x00FF /* Route port to console */ /* ------------------------------------------------------------------------ */ /* Baud Rates */ /* ------------------------------------------------------------------------ */ #define F_B300 0x0040 /* 300 baud */ #define F_B600 0x0060 /* 600 baud */ #define F_B1200 0x0080 /* 1200 baud */ #define F_B2400 0x00a0 /* 2400 baud */ #define F_B4800 0x00c0 /* 4800 baud */ #define F_B9600 0x00e0 /* 9600 baud */ #define F_B19200 0x0000 /* 19200 baud */ #define F_B38400 0x0020 /* 38400 baud */ #define F_B57600 0x0100 /* 57600 baud */ #define F_B115200 0x0120 /* 115200 baud */ #define F_BMASK 0x01E0 /* Mask for baud rate */ /* ------------------------------------------------------------------------ */ /* Character Framing */ /* ------------------------------------------------------------------------ */ #define F_PMASK 0x0018 /* Mask for parity bits */ #define F_NOPARITY 0x0000 /* No parity */ #define F_SPCPARITY 0x0010 /* Space/mark parity */ #define F_ODDPARITY 0x0008 /* Odd parity */ #define F_EVENPARITY 0x0018 /* Even parity */ #define F_SMASK 0x0004 /* Stop bits mask */ #define F_STOP1 0x0000 /* 1 stop bit */ #define F_STOP2 0x0004 /* 2 stop bits */ #define F_BITMASK 0x0003 /* Bit mask */ #define F_BITS5 0x0000 /* 5 data bits */ #define F_BITS6 0x0001 /* 6 data bits */ #define F_BITS7 0x0002 /* 7 data bits */ #define F_BITS8 0x0003 /* 8 data bits */ #define F_NORMAL (F_BITS8|F_STOP1|F_NOPARITY) #define F_UNIX (F_BITS7|F_STOP1|F_EVENPARITY) #define F_8N1 (F_BITS8|F_STOP1|F_NOPARITY) #define F_8N2 (F_BITS8|F_STOP2|F_NOPARITY) #define F_7O1 (F_BITS7|F_STOP1|F_ODDPARITY) #define F_7E1 (F_BITS7|F_STOP1|F_EVENPARITY) #define F_7N1 (F_BITS7|F_STOP1|F_NOPARITY) #define F_7O2 (F_BITS7|F_STOP2|F_ODDPARITY) #define F_7E2 (F_BITS7|F_STOP2|F_EVENPARITY) #define F_7N2 (F_BITS7|F_STOP2|F_NOPARITY) /* ------------------------------------------------------------------------ */ /* Flow Control flags */ /* ------------------------------------------------------------------------ */ #define F_LOCXON 0x0001 /* Enables local Xon/Xoff */ #define F_LOCCTS 0x0002 /* Enables local Cts/Dte */ #define F_REMXON 0x0008 /* Enables remove Xon/Xoff */ #define F_XONOFF 0x0000 /* Disables all flow control */ /* ------------------------------------------------------------------------ */ /* Break detect flags */ /* ------------------------------------------------------------------------ */ #define F_BRK_ON 0x0001 /* Enable ^C/^K checking */ #define F_BRK_OFF 0x0000 /* Disable ^C/^K checking */ #define F_SRELEASE 0x0002 /* Force Xoff transmitter */ /* ------------------------------------------------------------------------ */ /* FOSSIL status bits */ /* ------------------------------------------------------------------------ */ #define F_DCD (0x0080) #define F_RDA (0x0100) #define F_OVRN (0x0200) #define F_THRE (0x2000) #define F_TSRE (0x4000) /* ------------------------------------------------------------------------ */ /* macros */ /* ------------------------------------------------------------------------ */ #define fcarrier(p) (fstatus(p) & F_CARRIER) /* ------------------------------------------------------------------------ */ /* Fossil information structures */ /* ------------------------------------------------------------------------ */ struct finfo { char maxfunc; /* Maximum function call supported */ char revision; /* FOSSIL revision number */ }; struct ftinfo { char timerint; /* Timer tick interrupt number */ char ticksecs; /* Number of timer ticks per second */ char milltick; /* Number of milliseconds per timer tick */ }; struct fdata { short fdsize; /* Offset 0 (word) = Structure size */ char specver; /* 2 (byte) = FOSSIL spec version */ char drvlvl; /* 3 (byte) = Driver rev level */ char far *drvid; /* 4 (dwrd) = Pointer to ASCII ID */ short rxsize; /* 8 (word) = Input buffer size */ short rxavail; /* 0A (word) = Bytes avail (input) */ short txsize; /* 0C (word) = Output buffer size */ short txavail; /* 0E (word) = Bytes avail (output) */ char scnwid; /* 10 (byte) = Screen width, chars */ char scnlen; /* 11 (byte) = Screen height, chars */ short bdmask; /* 12 (word) = Baud rate mask */ char filler[2]; }; /* ------------------------------------------------------------------------ */ /* Function prototypes */ /* ------------------------------------------------------------------------ */ unsigned int finit (unsigned int p, unsigned int b); unsigned int fputch (unsigned int p, char c); unsigned int fgetch (unsigned int p); unsigned int fstatus (unsigned int p); unsigned int ffinit (unsigned int p, unsigned int *f, char far *fb); void fdeinit (unsigned int p); void fdtr (unsigned int p, unsigned int d); unsigned int ftickparms (unsigned int *ms); void fflushout (unsigned int p); void fpurgeout (unsigned int p); void fpurgein (unsigned int p); unsigned int fpoke (unsigned int p, char c); unsigned int fpeek (unsigned int p); unsigned int fkbdpeek (void); unsigned int fkbdgetch (void); void fflow (unsigned int p, unsigned char m); unsigned int fcontrol (unsigned int p, unsigned char m); void fgotoxy (unsigned int x, unsigned int y); unsigned int fwherexy (unsigned int *x, unsigned int *y); void fdispansi (char c); void fwatchdog (unsigned int p, int f); void fdispbios (char c); unsigned int ftickchain (int a, void (far *func)()); void freboot (unsigned int w); unsigned int fgetblk (unsigned int p, void far *buf, unsigned int z); unsigned int fputblk (unsigned int p, void far *buf, unsigned int z); void fbreak (unsigned int p, unsigned int f); unsigned int finfo (unsigned int p, void far *buf, unsigned int z); unsigned int faddapp (unsigned int p, unsigned int *c, void (far *func)()); unsigned int fdelapp (unsigned int p, unsigned int *c, void (far *func)());