NetBSD/usr.sbin/lptctl/lptctl.c

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/* $NetBSD: lptctl.c,v 1.10 2004/02/03 21:46:39 jdolecek Exp $ */
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/*-
* Copyright (c) 2004 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Gary Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: lptctl.c,v 1.10 2004/02/03 21:46:39 jdolecek Exp $");
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#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <err.h>
#include <sys/ioctl.h>
#include <dev/ppbus/lptio.h>
/* Prototypes */
static void usage(int status);
static void print_lpt_info(int, int);
int
main(const int argc, const char * const * argv) {
int fd, i;
int omode, mode, oflags, flags;
setprogname(argv[0]);
/* N = command name + device name + number of command-arg pairs */
/* Check number of arguments: at least 2, always even */
if((argc < 2) || (argc % 2 != 0))
usage(1);
if ((fd = open(argv[1], O_RDONLY, 0)) == -1)
err(2, "device open");
/* get current settings */
if (ioctl(fd, LPTGFLAGS, &flags) == -1)
err(2, "ioctl(LPTGFLAGS)");
oflags = flags;
if (ioctl(fd, LPTGMODE, &mode) == -1)
err(2, "ioctl(LPTGMODE)");
omode = mode;
/* Get command and arg pairs (if any) and do an ioctl for each */
for(i = 2; i < argc; i += 2) {
if (strcmp("dma", argv[i]) == 0) {
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if (strcmp("yes", argv[i + 1]) == 0)
flags |= LPT_DMA;
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else if (strcmp("no", argv[i + 1]) == 0)
flags &= ~LPT_DMA;
else {
errx(2, "invalid '%s' command argument '%s'",
argv[i], argv[i + 1]);
}
} else if (strcmp("mode", argv[i]) == 0) {
if (strcmp("standard", argv[i + 1]) == 0)
mode = mode_standard;
else if (strcmp("ps2", argv[i + 1]) == 0)
mode = mode_ps2;
else if (strcmp("nibble", argv[i + 1]) == 0)
mode = mode_nibble;
else if (strcmp("fast", argv[i + 1]) == 0)
mode = mode_fast;
else if (strcmp("ecp", argv[i + 1]) == 0)
mode = mode_ecp;
else if (strcmp("epp", argv[i + 1]) == 0)
mode = mode_epp;
else {
errx(2, "invalid '%s' command argument '%s'",
argv[i], argv[i+1]);
}
} else if (strcmp("ieee", argv[i]) == 0) {
if (strcmp("yes", argv[i + 1]) == 0)
flags |= LPT_IEEE;
else if (strcmp("no", argv[i + 1]) == 0)
flags &= ~LPT_IEEE;
else {
errx(2, "invalid '%s' command argument '%s'",
argv[i], argv[i+1]);
}
} else if (strcmp("intr", argv[i]) == 0) {
if (strcmp("yes", argv[i + 1]) == 0)
flags |= LPT_INTR;
else if (strcmp("no", argv[i + 1]) == 0)
flags &= ~LPT_INTR;
else {
errx(2, "invalid '%s' command argument '%s'",
argv[i], argv[i+1]);
}
} else if (strcmp("prime", argv[i]) == 0) {
if (strcmp("yes", argv[i + 1]) == 0)
flags |= LPT_PRIME;
else if (strcmp("no", argv[i + 1]) == 0)
flags &= ~LPT_PRIME;
else {
errx(2, "invalid '%s' command argument '%s'",
argv[i], argv[i+1]);
}
} else if (strcmp("autolf", argv[i]) == 0) {
if (strcmp("yes", argv[i + 1]) == 0)
flags |= LPT_AUTOLF;
else if (strcmp("no", argv[i + 1]) == 0)
flags &= ~LPT_AUTOLF;
else {
errx(2, "invalid '%s' command argument '%s'",
argv[i], argv[i+1]);
}
} else {
errx(2, "invalid command '%s'", argv[i]);
}
}
/* update mode and flags */
if (flags != oflags) {
if (ioctl(fd, LPTSFLAGS, &flags) == -1)
err(2, "ioctl(LPTSFLAGS)");
}
if (mode != omode) {
if (ioctl(fd, LPTSMODE, &mode) == -1)
err(2, "ioctl(LPTSMODE)");
}
/* Print out information on device */
printf("%s status:\n\t", argv[1]);
print_lpt_info(mode, flags);
exit(0);
/* NOTREACHED */
}
static void
print_lpt_info(int mode, int flags) {
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printf("mode=");
switch(mode) {
case mode_standard:
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printf("standard ");
break;
case mode_nibble:
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printf("nibble ");
break;
case mode_fast:
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printf("fast ");
break;
case mode_ps2:
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printf("ps2 ");
break;
case mode_ecp:
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printf("ecp ");
break;
case mode_epp:
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printf("epp ");
break;
default:
printf("<unknown> ");
break;
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}
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printf("dma=%s ", (flags & LPT_DMA) ? "yes" : "no");
printf("ieee=%s ", (flags & LPT_IEEE) ? "yes" : "no");
printf("intr=%s ", (flags & LPT_INTR) ? "yes" : "no");
printf("prime=%s ", (flags & LPT_PRIME) ? "yes" : "no");
printf("autolf=%s ", (flags & LPT_AUTOLF) ? "yes" : "no");
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printf("\n");
}
static void
usage(int status) {
printf("usage:\t%s /dev/device [[command arg] ...]\n"
"\tcommands are:\n"
"\t\tmode [standard|ps2|nibble|fast|ecp|epp]\n"
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"\t\tdma [yes|no]\n"
"\t\tieee [yes|no]\n"
"\t\tintr [yes|no]\n"
"\t\tprime [yes|no]\n"
"\t\tautolf [yes|no]\n",
getprogname());
exit(status);
}