usr.sbin/lptctl/lptctl.c

   1 /* $NetBSD: lptctl.c,v 1.10 2004/02/03 21:46:39 jdolecek Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2004 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Gary Thorpe.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __RCSID("$NetBSD: lptctl.c,v 1.10 2004/02/03 21:46:39 jdolecek Exp $");
  34
  35 #include <stdio.h>
  36 #include <fcntl.h>
  37 #include <string.h>
  38 #include <unistd.h>
  39 #include <stdlib.h>
  40 #include <err.h>
  41
  42 #include <sys/ioctl.h>
  43
  44 #include <dev/ppbus/lptio.h>
  45
  46 /* Prototypes */
  47 static void usage(int status);
  48 static void print_lpt_info(int, int);
  49
  50 int
  51 main(const int argc, const char * const * argv) {
  52         int fd, i;
  53         int omode, mode, oflags, flags;
  54
  55         setprogname(argv[0]);
  56
  57         /* N = command name + device name + number of command-arg pairs */
  58         /* Check number of arguments: at least 2, always even */
  59         if((argc < 2) || (argc % 2 != 0))
  60                 usage(1);
  61
  62         if ((fd = open(argv[1], O_RDONLY, 0)) == -1)
  63                 err(2, "device open");
  64
  65         /* get current settings */
  66         if (ioctl(fd, LPTGFLAGS, &flags) == -1)
  67                 err(2, "ioctl(LPTGFLAGS)");
  68         oflags = flags;
  69
  70         if (ioctl(fd, LPTGMODE, &mode) == -1)
  71                 err(2, "ioctl(LPTGMODE)");
  72         omode = mode;
  73
  74         /* Get command and arg pairs (if any) and do an ioctl for each */
  75         for(i = 2; i < argc; i += 2) {
  76                 if (strcmp("dma", argv[i]) == 0) {
  77                         if (strcmp("yes", argv[i + 1]) == 0)
  78                                 flags |= LPT_DMA;
  79                         else if (strcmp("no", argv[i + 1]) == 0)
  80                                 flags &= ~LPT_DMA;
  81                         else {
  82                                 errx(2, "invalid '%s' command argument '%s'",
  83                                         argv[i], argv[i + 1]);
  84                         }
  85                 } else if (strcmp("mode", argv[i]) == 0) {
  86                         if (strcmp("standard", argv[i + 1]) == 0)
  87                                 mode = mode_standard;
  88                         else if (strcmp("ps2", argv[i + 1]) == 0)
  89                                 mode = mode_ps2;
  90                         else if (strcmp("nibble", argv[i + 1]) == 0)
  91                                 mode = mode_nibble;
  92                         else if (strcmp("fast", argv[i + 1]) == 0)
  93                                 mode = mode_fast;
  94                         else if (strcmp("ecp", argv[i + 1]) == 0)
  95                                 mode = mode_ecp;
  96                         else if (strcmp("epp", argv[i + 1]) == 0)
  97                                 mode = mode_epp;
  98                         else {
  99                                 errx(2, "invalid '%s' command argument '%s'",
 100                                         argv[i], argv[i+1]);
 101                         }
 102                 } else if (strcmp("ieee", argv[i]) == 0) {
 103                         if (strcmp("yes", argv[i + 1]) == 0)
 104                                 flags |= LPT_IEEE;
 105                         else if (strcmp("no", argv[i + 1]) == 0)
 106                                 flags &= ~LPT_IEEE;
 107                         else {
 108                                 errx(2, "invalid '%s' command argument '%s'",
 109                                         argv[i], argv[i+1]);
 110                         }
 111                 } else if (strcmp("intr", argv[i]) == 0) {
 112                         if (strcmp("yes", argv[i + 1]) == 0)
 113                                 flags |= LPT_INTR;
 114                         else if (strcmp("no", argv[i + 1]) == 0)
 115                                 flags &= ~LPT_INTR;
 116                         else {
 117                                 errx(2, "invalid '%s' command argument '%s'",
 118                                         argv[i], argv[i+1]);
 119                         }
 120                 } else if (strcmp("prime", argv[i]) == 0) {
 121                         if (strcmp("yes", argv[i + 1]) == 0)
 122                                 flags |= LPT_PRIME;
 123                         else if (strcmp("no", argv[i + 1]) == 0)
 124                                 flags &= ~LPT_PRIME;
 125                         else {
 126                                 errx(2, "invalid '%s' command argument '%s'",
 127                                         argv[i], argv[i+1]);
 128                         }
 129                 } else if (strcmp("autolf", argv[i]) == 0) {
 130                         if (strcmp("yes", argv[i + 1]) == 0)
 131                                 flags |= LPT_AUTOLF;
 132                         else if (strcmp("no", argv[i + 1]) == 0)
 133                                 flags &= ~LPT_AUTOLF;
 134                         else {
 135                                 errx(2, "invalid '%s' command argument '%s'",
 136                                         argv[i], argv[i+1]);
 137                         }
 138                 } else {
 139                         errx(2, "invalid command '%s'", argv[i]);
 140                 }
 141         }
 142
 143         /* update mode and flags */
 144         if (flags != oflags) {
 145                 if (ioctl(fd, LPTSFLAGS, &flags) == -1)
 146                         err(2, "ioctl(LPTSFLAGS)");
 147         }
 148         if (mode != omode) {
 149                 if (ioctl(fd, LPTSMODE, &mode) == -1)
 150                         err(2, "ioctl(LPTSMODE)");
 151         }
 152
 153         /* Print out information on device */
 154         printf("%s status:\n\t", argv[1]);
 155         print_lpt_info(mode, flags);
 156
 157         exit(0);
 158         /* NOTREACHED */
 159 }
 160
 161 static void
 162 print_lpt_info(int mode, int flags) {
 163         printf("mode=");
 164         switch(mode) {
 165         case mode_standard:
 166                 printf("standard ");
 167                 break;
 168         case mode_nibble:
 169                 printf("nibble ");
 170                 break;
 171         case mode_fast:
 172                 printf("fast ");
 173                 break;
 174         case mode_ps2:
 175                 printf("ps2 ");
 176                 break;
 177         case mode_ecp:
 178                 printf("ecp ");
 179                 break;
 180         case mode_epp:
 181                 printf("epp ");
 182                 break;
 183         default:
 184                 printf("<unknown> ");
 185                 break;
 186         }
 187
 188         printf("dma=%s ", (flags & LPT_DMA) ? "yes" : "no");
 189         printf("ieee=%s ", (flags & LPT_IEEE) ? "yes" : "no");
 190         printf("intr=%s ", (flags & LPT_INTR) ? "yes" : "no");
 191         printf("prime=%s ", (flags & LPT_PRIME) ? "yes" : "no");
 192         printf("autolf=%s ", (flags & LPT_AUTOLF) ? "yes" : "no");
 193
 194         printf("\n");
 195 }
 196
 197 static void
 198 usage(int status) {
 199         printf("usage:\t%s /dev/device [[command arg] ...]\n"
 200                 "\tcommands are:\n"
 201                 "\t\tmode [standard|ps2|nibble|fast|ecp|epp]\n"
 202                 "\t\tdma [yes|no]\n"
 203                 "\t\tieee [yes|no]\n"
 204                 "\t\tintr [yes|no]\n"
 205                 "\t\tprime [yes|no]\n"
 206                 "\t\tautolf [yes|no]\n",
 207                 getprogname());
 208         exit(status);
 209 }