lptcontrol.c revision 97748
12470Scsgr/* 22470Scsgr * Copyright (c) 1994 Geoffrey M. Rehmet 32470Scsgr * All rights reserved. 42470Scsgr * 52470Scsgr * Redistribution and use in source and binary forms, with or without 62470Scsgr * modification, are permitted provided that the following conditions 72470Scsgr * are met: 82470Scsgr * 1. Redistributions of source code must retain the above copyright 92470Scsgr * notice, this list of conditions and the following disclaimer. 102470Scsgr * 2. Redistributions in binary form must reproduce the above copyright 112470Scsgr * notice, this list of conditions and the following disclaimer in the 122470Scsgr * documentation and/or other materials provided with the distribution. 132470Scsgr * 3. All advertising materials mentioning features or use of this software 142470Scsgr * must display the following acknowledgement: 152470Scsgr * This product includes software developed by Geoffrey M. Rehmet 162470Scsgr * 4. The name of the author may not be used to endorse or promote products 1797748Sschweikh * derived from this software without specific prior written permission 182470Scsgr * 192470Scsgr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 202470Scsgr * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 212470Scsgr * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 222470Scsgr * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 232470Scsgr * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 242470Scsgr * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 252470Scsgr * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 262470Scsgr * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 272470Scsgr * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 282470Scsgr * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 292470Scsgr */ 302470Scsgr 3129846Scharnier#ifndef lint 3229846Scharnierstatic const char rcsid[] = 3350479Speter "$FreeBSD: head/usr.sbin/lptcontrol/lptcontrol.c 97748 2002-06-02 20:05:59Z schweikh $"; 3429846Scharnier#endif /* not lint */ 3529846Scharnier 362484Scsgr#include <ctype.h> 3729846Scharnier#include <err.h> 382484Scsgr#include <limits.h> 392484Scsgr#include <paths.h> 402484Scsgr#include <stdio.h> 412470Scsgr#include <stdlib.h> 422484Scsgr#include <string.h> 432470Scsgr#include <unistd.h> 442484Scsgr 4560726Speter#include <dev/ppbus/lptio.h> 462484Scsgr#include <sys/file.h> 472484Scsgr#include <sys/ioctl.h> 482484Scsgr#include <sys/types.h> 492470Scsgr 502470Scsgr 512484Scsgr#define PATH_LPCTL _PATH_DEV "lpctl" 5263112Salfred#define DEFAULT_DEVICE _PATH_DEV "lpt0" 532470Scsgr#define IRQ_INVALID -1 542470Scsgr#define DO_POLL 0 552470Scsgr#define USE_IRQ 1 5642475Snsouch#define USE_EXT_MODE 2 5742475Snsouch#define USE_STD_MODE 3 582470Scsgr 5978714Sddstatic void usage(void) 602470Scsgr{ 6143993Snsouch fprintf(stderr, "usage: lptcontrol -i | -p | -s | -e [-d device]\n"); 622470Scsgr exit(1); 632470Scsgr} 642470Scsgr 652470Scsgrstatic void set_interrupt_status(int irq_status, const char * file) 662470Scsgr{ 672470Scsgr int fd; 682470Scsgr 6929846Scharnier if((fd = open(file, O_WRONLY, 0660)) < 0) 7029846Scharnier err(1, "open"); 7129846Scharnier if(ioctl(fd, LPT_IRQ, &irq_status) < 0) 7229846Scharnier err(1, "ioctl"); 732470Scsgr close(fd); 742470Scsgr} 752470Scsgr 762470Scsgrint main (int argc, char * argv[]) 772470Scsgr{ 782470Scsgr int opt; 792484Scsgr int irq_status = IRQ_INVALID; 8078714Sdd const char *device = DEFAULT_DEVICE; 818857Srgrimes 8243993Snsouch while((opt = getopt(argc, argv, "ipesd:")) != -1) 832470Scsgr switch(opt) { 842470Scsgr case 'i': irq_status = USE_IRQ; break; 852470Scsgr case 'p': irq_status = DO_POLL; break; 8642475Snsouch case 'e': irq_status = USE_EXT_MODE; break; 8742475Snsouch case 's': irq_status = USE_STD_MODE; break; 8843993Snsouch case 'd': device = optarg; break; 8929846Scharnier default : usage(); 902470Scsgr } 918857Srgrimes if(irq_status == IRQ_INVALID) 9229846Scharnier usage(); 932470Scsgr 9443993Snsouch set_interrupt_status(irq_status, device); 952470Scsgr 962470Scsgr exit(0); 972470Scsgr} 98