Annotation of sys/arch/hp300/stand/common/cons.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: cons.c,v 1.4 2006/08/17 06:31:10 miod Exp $ */
2: /* $NetBSD: cons.c,v 1.2 1997/05/12 07:44:53 thorpej Exp $ */
3:
4: /*
5: * Copyright (c) 1988 University of Utah.
6: * Copyright (c) 1990, 1993
7: * The Regents of the University of California. All rights reserved.
8: *
9: * This code is derived from software contributed to Berkeley by
10: * the Systems Programming Group of the University of Utah Computer
11: * Science Department.
12: *
13: * Redistribution and use in source and binary forms, with or without
14: * modification, are permitted provided that the following conditions
15: * are met:
16: * 1. Redistributions of source code must retain the above copyright
17: * notice, this list of conditions and the following disclaimer.
18: * 2. Redistributions in binary form must reproduce the above copyright
19: * notice, this list of conditions and the following disclaimer in the
20: * documentation and/or other materials provided with the distribution.
21: * 3. Neither the name of the University nor the names of its contributors
22: * may be used to endorse or promote products derived from this software
23: * without specific prior written permission.
24: *
25: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35: * SUCH DAMAGE.
36: *
37: * from: Utah Hdr: cons.c 1.7 92/02/28
38: *
39: * @(#)cons.c 8.1 (Berkeley) 6/10/93
40: */
41:
42: #include <sys/param.h>
43:
44: #include "samachdep.h"
45: #include "consdefs.h"
46:
47: struct consdev constab[] = {
48: #ifdef ITECONSOLE
49: { iteprobe, iteinit, itegetchar, iteputchar },
50: #endif
51: #ifdef DCACONSOLE
52: { dcaprobe, dcainit, dcagetchar, dcaputchar },
53: #endif
54: #ifdef APCICONSOLE
55: { apciprobe, apciinit, apcigetchar, apciputchar },
56: #endif
57: #ifdef DCMCONSOLE
58: { dcmprobe, dcminit, dcmgetchar, dcmputchar },
59: #endif
60: { 0 },
61: };
62:
63: struct consdev *cn_tab;
64: int noconsole;
65:
66: void
67: cninit()
68: {
69: struct consdev *cp;
70:
71: cn_tab = NULL;
72: noconsole = 1;
73: for (cp = constab; cp->cn_probe; cp++) {
74: (*cp->cn_probe)(cp);
75: if (cp->cn_pri > CN_DEAD &&
76: (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri))
77: cn_tab = cp;
78: }
79: if (cn_tab) {
80: (*cn_tab->cn_init)(cn_tab);
81: noconsole = 0;
82: }
83: }
84:
85: int
86: cngetc()
87: {
88:
89: /* Note: the dev_t arguments are not used! */
90: if (cn_tab)
91: return((*cn_tab->cn_getc)(0));
92: return(0);
93: }
94:
95: void
96: cnputc(c)
97: int c;
98: {
99: /* Note: the dev_t arguments are not used! */
100: if (userom)
101: romputchar(c);
102: else if (cn_tab)
103: (*cn_tab->cn_putc)(0, c);
104: }
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