sys/arch/hp300/stand/common/cons.c

   1 /*      $NetBSD: cons.c,v 1.2.56.4 2005/03/04 16:38:26 skrll 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 }