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

   1 /*      $NetBSD$        */
   2
   3 /*-
   4  * Copyright (c) 2005 NONAKA Kimihiro
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <lib/libsa/stand.h>
  30 #include <lib/libkern/libkern.h>
  31
  32 #include <sys/bootblock.h>
  33
  34 #include "boot.h"
  35 #include "cons.h"
  36
  37 #ifndef CONSPEED
  38 #define CONSPEED        9600
  39 #endif
  40
  41 #define POLL_FREQ       10
  42
  43 extern struct landisk_boot_params boot_params;
  44
  45 static int consdev = CONSDEV_BIOSCONS;
  46
  47 /*ARGSUSED*/
  48 int
  49 cninit(int dev)
  50 {
  51
  52         switch (dev) {
  53         default:
  54         case CONSDEV_BIOSCONS:
  55                 break;
  56
  57         case CONSDEV_SCIF:
  58                 switch (boot_params.bp_conspeed) {
  59                 default:
  60                         scif_init(CONSPEED);
  61                         break;
  62
  63                 case 9600:
  64 #if 0
  65                 case 19200:
  66                 case 38400:
  67                 case 57600:
  68                 case 115200:
  69 #endif
  70                         scif_init(boot_params.bp_conspeed);
  71                         break;
  72                 }
  73                 break;
  74         }
  75         consdev = dev;
  76
  77         return (0);
  78 }
  79
  80 int
  81 getchar(void)
  82 {
  83
  84         switch (consdev) {
  85         default:
  86         case CONSDEV_BIOSCONS:
  87                 return bioscons_getc();
  88
  89         case CONSDEV_SCIF:
  90                 return scif_getc();
  91         }
  92 }
  93
  94 void
  95 putchar(int c)
  96 {
  97
  98         switch (consdev) {
  99         default:
 100         case CONSDEV_BIOSCONS:
 101                 bioscons_putc(c);
 102                 break;
 103
 104         case CONSDEV_SCIF:
 105                 if (c == '\n')
 106                         scif_putc('\r');
 107                 scif_putc(c);
 108                 break;
 109         }
 110 }
 111
 112 /*ARGSUSED*/
 113 int
 114 iskey(int intr)
 115 {
 116
 117         switch (consdev) {
 118         default:
 119         case CONSDEV_BIOSCONS:
 120                 return scif_status2();
 121
 122         case CONSDEV_SCIF:
 123                 return scif_status();
 124         }
 125 }
 126
 127 char
 128 awaitkey(int timeout, int tell)
 129 {
 130         int i;
 131         char c = 0;
 132
 133         i = timeout * POLL_FREQ;
 134
 135         for (;;) {
 136                 if (tell && (i % POLL_FREQ) == 0) {
 137                         char numbuf[20];
 138                         int len, j;
 139
 140                         sprintf(numbuf, "%d ", i / POLL_FREQ);
 141                         len = strlen(numbuf);
 142                         for (j = 0; j < len; j++)
 143                                 numbuf[len + j] = '\b';
 144                         numbuf[len + j] = '\0';
 145                         printf(numbuf);
 146                 }
 147                 if (iskey(1)) {
 148                         /* flush input buffer */
 149                         while (iskey(0))
 150                                 c = getchar();
 151                         if (c == 0)
 152                                 c = -1;
 153                         goto out;
 154                 }
 155                 if (i--) {
 156                         delay(1000 / POLL_FREQ);
 157                 } else {
 158                         break;
 159                 }
 160         }
 161
 162 out:
 163         if (tell)
 164                 printf("0 \n");
 165
 166         return (c);
 167 }