cons.c revision 1.5
1 /* $NetBSD: cons.c,v 1.5 2005/02/20 13:59:27 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * the Systems Programming Group of the University of Utah Computer 9 * Science Department. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: Utah Hdr: cons.c 1.7 92/02/28 36 * 37 * @(#)cons.c 8.1 (Berkeley) 6/10/93 38 */ 39 /* 40 * Copyright (c) 1988 University of Utah. 41 * 42 * This code is derived from software contributed to Berkeley by 43 * the Systems Programming Group of the University of Utah Computer 44 * Science Department. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * This product includes software developed by the University of 57 * California, Berkeley and its contributors. 58 * 4. Neither the name of the University nor the names of its contributors 59 * may be used to endorse or promote products derived from this software 60 * without specific prior written permission. 61 * 62 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 63 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 64 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 65 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 66 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 67 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 68 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 69 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 70 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 71 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 72 * SUCH DAMAGE. 73 * 74 * from: Utah Hdr: cons.c 1.7 92/02/28 75 * 76 * @(#)cons.c 8.1 (Berkeley) 6/10/93 77 */ 78 79 #include <sys/param.h> 80 #include <dev/cons.h> 81 82 #include <hp300/stand/common/consdefs.h> 83 #include <hp300/stand/common/samachdep.h> 84 85 struct consdev constab[] = { 86 #ifdef ITECONSOLE 87 { iteprobe, iteinit, itegetchar, iteputchar }, 88 #endif 89 #ifdef DCACONSOLE 90 { dcaprobe, dcainit, dcagetchar, dcaputchar }, 91 #endif 92 #ifdef APCICONSOLE 93 { apciprobe, apciinit, apcigetchar, apciputchar }, 94 #endif 95 #ifdef DCMCONSOLE 96 { dcmprobe, dcminit, dcmgetchar, dcmputchar }, 97 #endif 98 { 0 }, 99 }; 100 101 int curcons_scode; /* select code of device currently being probed */ 102 int cons_scode; /* final select code of console device */ 103 104 struct consdev *cn_tab; 105 int noconsole; 106 107 void 108 cninit(void) 109 { 110 struct consdev *cp; 111 112 cn_tab = NULL; 113 noconsole = 1; 114 cons_scode = 256; /* larger than last valid select code */ 115 for (cp = constab; cp->cn_probe; cp++) { 116 (*cp->cn_probe)(cp); 117 if (cp->cn_pri > CN_DEAD && 118 (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri)) { 119 cn_tab = cp; 120 cons_scode = curcons_scode; 121 } 122 } 123 if (cn_tab) { 124 (*cn_tab->cn_init)(cn_tab); 125 noconsole = 0; 126 #if 0 127 printf("console: "); 128 switch (cons_scode) { 129 case -2: 130 printf("apci\n"); 131 break; 132 case -1: 133 printf("internal grf\n"); 134 break; 135 default: 136 printf("scode %d\n", cons_scode); 137 } 138 #endif 139 } 140 } 141 142 int 143 cngetc(void) 144 { 145 146 /* Note: the dev_t arguments are not used! */ 147 if (cn_tab) 148 return (*cn_tab->cn_getc)(0); 149 return 0; 150 } 151 152 int 153 cnputc(int c) 154 { 155 156 /* Note: the dev_t arguments are not used! */ 157 if (userom) 158 romputchar(c); 159 else if (cn_tab) 160 (*cn_tab->cn_putc)(0, c); 161 162 return 0; 163 } 164
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