1/* $NetBSD: cons.c,v 1.6 2005/12/11 12:17:19 christos Exp $ */ 2 3/* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: Utah Hdr: cons.c 1.7 92/02/28 37 * 38 * @(#)cons.c 8.1 (Berkeley) 6/10/93 39 */ 40 41#include <sys/param.h> 42#include <dev/cons.h> 43 44#include <hp300/stand/common/consdefs.h> 45#include <hp300/stand/common/samachdep.h> 46 47struct 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 63int curcons_scode; /* select code of device currently being probed */ 64int cons_scode; /* final select code of console device */ 65 66struct consdev *cn_tab; 67int noconsole; 68 69void 70cninit(void) 71{ 72 struct consdev *cp; 73 74 cn_tab = NULL; 75 noconsole = 1; 76 cons_scode = 256; /* larger than last valid select code */ 77 for (cp = constab; cp->cn_probe; cp++) { 78 (*cp->cn_probe)(cp); 79 if (cp->cn_pri > CN_DEAD && 80 (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri)) { 81 cn_tab = cp; 82 cons_scode = curcons_scode; 83 } 84 } 85 if (cn_tab) { 86 (*cn_tab->cn_init)(cn_tab); 87 noconsole = 0; 88#if 0 89 printf("console: "); 90 switch (cons_scode) { 91 case -2: 92 printf("apci\n"); 93 break; 94 case -1: 95 printf("internal grf\n"); 96 break; 97 default: 98 printf("scode %d\n", cons_scode); 99 } 100#endif 101 } 102} 103 104int 105cngetc(void) 106{ 107 108 /* Note: the dev_t arguments are not used! */ 109 if (cn_tab) 110 return (*cn_tab->cn_getc)(0); 111 return 0; 112} 113 114int 115cnputc(int c) 116{ 117 118 /* Note: the dev_t arguments are not used! */ 119 if (userom) 120 romputchar(c); 121 else if (cn_tab) 122 (*cn_tab->cn_putc)(0, c); 123 124 return 0; 125} 126