sys/arch/bebox/stand/boot/cons.c

   1 /*      $NetBSD: cons.c,v 1.10 2008/06/07 03:56:20 kiyohara 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 <lib/libsa/stand.h>
  80 #include <sys/param.h>
  81 #include "boot.h"
  82 #include "cons.h"
  83
  84 #ifdef CONS_BE
  85 void becnprobe(struct consdev *);
  86 void becninit(struct consdev *);
  87 void becnputchar(void *, register int);
  88 int becngetchar(void *);
  89 int becnscan(void *);
  90 #endif
  91
  92 #ifdef CONS_VGA
  93 void vgacnprobe(struct consdev *);
  94 void vgacninit(struct consdev *);
  95 void vgacnputchar(void *, register int);
  96 int vgacngetchar(void *);
  97 int vgacnscan(void *);
  98 #endif
  99
 100 #ifdef CONS_SERIAL
 101 void siocnprobe(struct consdev *);
 102 void siocninit(struct consdev *);
 103 void siocnputchar(void *, register int);
 104 int siocngetchar(void *);
 105 int siocnscan(void *);
 106 # include "ns16550.h"
 107 # ifndef COMPORT
 108 #  define COMPORT COM1
 109 # endif
 110 # ifndef COMSPEED
 111 #  define COMSPEED 9600
 112 # endif
 113 #endif
 114
 115 struct consdev constab[] = {
 116 #ifdef CONS_BE
 117         { "be", 0xd0000000, 0,
 118             becnprobe, becninit, becngetchar, becnputchar, becnscan },
 119 #endif
 120 #ifdef CONS_VGA
 121         { "vga", 0xc0000000, 0,
 122             vgacnprobe, vgacninit, vgacngetchar, vgacnputchar, vgacnscan },
 123 #endif
 124 #ifdef CONS_SERIAL
 125         { "com", COMPORT, COMSPEED,
 126             siocnprobe, siocninit, siocngetchar, siocnputchar, siocnscan },
 127 #endif
 128         { 0 }
 129 };
 130
 131 struct consdev *cn_tab;
 132
 133 char *
 134 cninit(int *addr, int *speed)
 135 {
 136         register struct consdev *cp;
 137
 138         cn_tab = NULL;
 139         for (cp = constab; cp->cn_probe; cp++) {
 140                 (*cp->cn_probe)(cp);
 141                 if (cp->cn_pri > CN_DEAD &&
 142                     (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri))
 143                         cn_tab = cp;
 144         }
 145         if (cn_tab) {
 146                 (*cn_tab->cn_init)(cn_tab);
 147                 *addr = cn_tab->address;
 148                 *speed = cn_tab->speed;
 149                 return (cn_tab->cn_name);
 150         }
 151
 152         return (NULL);
 153 }
 154
 155 int
 156 cngetc(void)
 157 {
 158
 159         if (cn_tab)
 160                 return ((*cn_tab->cn_getc)(cn_tab->cn_dev));
 161         return (0);
 162 }
 163
 164 void
 165 cnputc(int c)
 166 {
 167
 168         if (cn_tab)
 169                 (*cn_tab->cn_putc)(cn_tab->cn_dev, c);
 170 }
 171
 172 int
 173 cnscan(void)
 174 {
 175
 176         if (cn_tab)
 177                 return ((*cn_tab->cn_scan)(cn_tab->cn_dev));
 178         return -1;
 179 }
 180
 181 #ifdef CONS_BE
 182 /*
 183  * BeBox default console
 184  */
 185 void
 186 becnprobe(struct consdev *cp)
 187 {
 188
 189         cp->cn_pri = CN_INTERNAL;
 190 }
 191
 192 void
 193 becninit(struct consdev *cp)
 194 {
 195
 196         video_init((u_char *)cp->address);
 197         kbdreset();
 198         kbd(1);         /* read out ugly data */
 199 }
 200
 201 int
 202 becngetchar(void *dev)
 203 {
 204
 205         return (kbd_getc());
 206 }
 207
 208 void
 209 becnputchar(void *dev, register int c)
 210 {
 211
 212         video_putc(c);
 213 }
 214
 215 int
 216 becnscan(void *dev)
 217 {
 218
 219         return (kbd(1));
 220 }
 221 #endif /* CONS_BE */
 222
 223 #ifdef CONS_VGA
 224 /*
 225  * VGA console
 226  */
 227 void
 228 vgacnprobe(struct consdev *cp)
 229 {
 230
 231         cp->cn_pri = CN_NORMAL;
 232 }
 233
 234 void
 235 vgacninit(struct consdev *cp)
 236 {
 237
 238         vga_reset((u_char *)cp->address);
 239         vga_init((u_char *)cp->address);
 240         kbdreset();
 241 }
 242
 243 int
 244 vgacngetchar(void *dev)
 245 {
 246
 247         return (kbd_getc());
 248 }
 249
 250 void
 251 vgacnputchar(void *dev, register int c)
 252 {
 253
 254         vga_putc(c);
 255 }
 256
 257 int
 258 vgacnscan(void *dev)
 259 {
 260
 261         return (kbd(1));
 262 }
 263 #endif /* CONS_VGA */
 264
 265 #ifdef CONS_SERIAL
 266 /*
 267  * serial console
 268  */
 269 void
 270 siocnprobe(struct consdev *cp)
 271 {
 272
 273         cp->cn_pri = CN_REMOTE;
 274 }
 275
 276 void
 277 siocninit(struct consdev *cp)
 278 {
 279
 280         cp->cn_dev = (void *)NS16550_init(cp->address, cp->speed);
 281 }
 282
 283 int
 284 siocngetchar(void *dev)
 285 {
 286
 287         return (NS16550_getc((struct NS16550 *)dev));
 288 }
 289
 290 void
 291 siocnputchar(void *dev, register int c)
 292 {
 293
 294         if (c == '\n')
 295                 NS16550_putc((struct NS16550 *)dev, '\r');
 296         NS16550_putc((struct NS16550 *)dev, c);
 297 }
 298
 299 int
 300 siocnscan(void *dev)
 301 {
 302
 303         return (NS16550_scankbd((struct NS16550 *)dev));
 304 }
 305 #endif /* CONS_SERIAL */