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

   1 /*      $NetBSD: cons.c,v 1.8 2008/03/23 17:19:57 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 <lib/libsa/stand.h>
  80
  81 #include <machine/cpu.h>
  82
  83 #include "boot.h"
  84 #include "cons.h"
  85
  86 #ifdef CONS_SERIAL
  87 void comcnprobe(struct consdev *);
  88 void comcninit(struct consdev *);
  89 void comcnputchar(void *, int);
  90 int comcngetchar(void *);
  91 int comcnscan(void *);
  92 # include "ns16550.h"
  93 # ifndef COMPORT
  94 #  define COMPORT COM1
  95 # endif
  96 # ifndef COMSPEED
  97 #  define COMSPEED 9600
  98 # endif
  99 #endif
 100
 101 #ifdef CONS_ZS
 102 void zscnprobe(struct consdev *);
 103 void zscninit(struct consdev *);
 104 void zscnputchar(void *, int);
 105 int zscngetchar(void *);
 106 int zscnscan(void *);
 107 #include "zs.h"
 108 #ifndef ZSCHAN
 109 #define ZSCHAN ZS_CHAN_A
 110 #endif
 111 #ifndef ZSSPEED
 112 #define ZSSPEED 115200
 113 #endif
 114 #endif
 115
 116 struct consdev constab[] = {
 117 #ifdef CONS_SERIAL
 118         { "com", COMPORT, COMSPEED,
 119             comcnprobe, comcninit, comcngetchar, comcnputchar, comcnscan },
 120 #endif
 121 #ifdef CONS_ZS
 122         { "zs", ZSCHAN, ZSSPEED,
 123             zscnprobe, zscninit, zscngetchar, zscnputchar, zscnscan },
 124 #endif
 125         { 0 }
 126 };
 127
 128 struct consdev *cn_tab;
 129
 130 char *
 131 cninit(int *addr, int *speed)
 132 {
 133         register struct consdev *cp;
 134
 135         cn_tab = NULL;
 136         for (cp = constab; cp->cn_probe; cp++) {
 137                 (*cp->cn_probe)(cp);
 138                 if (cp->cn_pri > CN_DEAD &&
 139                     (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri))
 140                         cn_tab = cp;
 141         }
 142         if (cn_tab) {
 143                 (*cn_tab->cn_init)(cn_tab);
 144                 *addr = cn_tab->address;
 145                 *speed = cn_tab->speed;
 146                 return cn_tab->cn_name;
 147         }
 148
 149         return NULL;
 150 }
 151
 152 int
 153 cngetc(void)
 154 {
 155
 156         if (cn_tab)
 157                 return (*cn_tab->cn_getc)(cn_tab->cn_dev);
 158         return 0;
 159 }
 160
 161 void
 162 cnputc(int c)
 163 {
 164
 165         if (cn_tab)
 166                 (*cn_tab->cn_putc)(cn_tab->cn_dev, c);
 167 }
 168
 169 int
 170 cnscan(void)
 171 {
 172
 173         if (cn_tab)
 174                 return (*cn_tab->cn_scan)(cn_tab->cn_dev);
 175         return -1;
 176 }
 177
 178 #ifdef CONS_SERIAL
 179 /*
 180  * serial console
 181  */
 182 void
 183 comcnprobe(struct consdev *cp)
 184 {
 185
 186         if (*((uint32_t *)COMPROBE) != 0 &&
 187             cobalt_id != COBALT_ID_QUBE2700)
 188                 cp->cn_pri = CN_REMOTE;
 189 }
 190
 191 void
 192 comcninit(struct consdev *cp)
 193 {
 194
 195         cp->cn_dev = com_init(cp->address, cp->speed);
 196 }
 197
 198 int
 199 comcngetchar(void *dev)
 200 {
 201
 202         return com_getc(dev);
 203 }
 204
 205 void
 206 comcnputchar(void *dev, int c)
 207 {
 208
 209         if (c == '\n')
 210                 com_putc(dev, '\r');
 211         com_putc(dev, c);
 212 }
 213
 214 int
 215 comcnscan(void *dev)
 216 {
 217
 218         return com_scankbd(dev);
 219 }
 220 #endif /* CONS_SERIAL */
 221
 222 #ifdef CONS_ZS
 223 /*
 224  * optional z85c30 serial console on Qube2700
 225  */
 226 void
 227 zscnprobe(struct consdev *cp)
 228 {
 229
 230         if (*((uint32_t *)ZSPROBE) != 0 &&
 231             cobalt_id == COBALT_ID_QUBE2700)
 232                 cp->cn_pri = CN_REMOTE;
 233 }
 234
 235 void
 236 zscninit(struct consdev *cp)
 237 {
 238
 239         cp->cn_dev = zs_init(cp->address, cp->speed);
 240 }
 241
 242 int
 243 zscngetchar(void *dev)
 244 {
 245
 246         return zs_getc(dev);
 247 }
 248
 249 void
 250 zscnputchar(void *dev, int c)
 251 {
 252
 253         if (c == '\n')
 254                 zs_putc(dev, '\r');
 255         zs_putc(dev, c);
 256 }
 257
 258 int
 259 zscnscan(void *dev)
 260 {
 261
 262         return zs_scan(dev);
 263 }
 264 #endif  /* CONS_ZS */