Return to cons.c CVS log

Up to [CSRG BSD Unix] / 43BSDReno / sys / hpstand

Annotation of 43BSDReno/sys/hpstand/cons.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1988 University of Utah.
                      3:  * Copyright (c) 1990 The Regents of the University of California.
                      4:  * All rights reserved.
                      5:  *
                      6:  * This code is derived from software contributed to Berkeley by
                      7:  * the Systems Programming Group of the University of Utah Computer
                      8:  * Science Department.
                      9:  *
                     10:  * Redistribution is only permitted until one year after the first shipment
                     11:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
                     12:  * binary forms are permitted provided that: (1) source distributions retain
                     13:  * this entire copyright notice and comment, and (2) distributions including
                     14:  * binaries display the following acknowledgement:  This product includes
                     15:  * software developed by the University of California, Berkeley and its
                     16:  * contributors'' in the documentation or other materials provided with the
                     17:  * distribution and in all advertising materials mentioning features or use
                     18:  * of this software.  Neither the name of the University nor the names of
                     19:  * its contributors may be used to endorse or promote products derived from
                     20:  * this software without specific prior written permission.
                     21:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     22:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     23:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     24:  *
                     25:  * from: Utah $Hdr: cons.c 1.5 89/08/22$
                     26:  *
                     27:  *     @(#)cons.c      7.2 (Berkeley) 5/25/90
                     28:  */
                     29: 
                     30: #include "param.h"
                     31: #include "samachdep.h"
                     32: #include "machine/cons.h"
                     33: 
                     34: int    nodev();
                     35: #ifdef ITECONSOLE
                     36: int    iteprobe(), iteinit(), itegetchar(), iteputchar();
                     37: #endif
                     38: #ifdef DCACONSOLE
                     39: int    dcaprobe(), dcainit(), dcagetchar(), dcaputchar();
                     40: #endif
                     41: #ifdef DCMCONSOLE
                     42: int    dcmprobe(), dcminit(), dcmgetchar(), dcmputchar();
                     43: #endif
                     44: 
                     45: struct consdev constab[] = {
                     46: #ifdef ITECONSOLE
                     47:        { iteprobe,     iteinit,        itegetchar,     iteputchar },
                     48: #endif
                     49: #ifdef DCACONSOLE
                     50:        { dcaprobe,     dcainit,        dcagetchar,     dcaputchar },
                     51: #endif
                     52: #ifdef DCMCONSOLE
                     53:        { dcmprobe,     dcminit,        dcmgetchar,     dcmputchar },
                     54: #endif
                     55:        { 0 },
                     56: };
                     57: 
                     58: struct consdev *cn_tab;
                     59: int noconsole;
                     60: 
                     61: cninit()
                     62: {
                     63:        register struct consdev *cp;
                     64: 
                     65:        cn_tab = NULL;
                     66:        noconsole = 1;
                     67:        for (cp = constab; cp->cn_probe; cp++) {
                     68:                (*cp->cn_probe)(cp);
                     69:                if (cp->cn_pri > CN_DEAD &&
                     70:                    (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri))
                     71:                        cn_tab = cp;
                     72:        }
                     73:        if (cn_tab) {
                     74:                (*cn_tab->cn_init)(cn_tab);
                     75:                noconsole = 0;
                     76:        }
                     77: }
                     78: 
                     79: cngetc()
                     80: {
                     81:        if (cn_tab)
                     82:                return((*cn_tab->cn_getc)());
                     83:        return(0);
                     84: }
                     85: 
                     86: cnputc(c)
                     87:        int c;
                     88: {
                     89:        if (cn_tab)
                     90:                (*cn_tab->cn_putc)(c);
                     91: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.