1 /* $NetBSD: parioctl.h,v 1.7 2005/12/11 12:16:28 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1990 The Regents of the University of California. 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 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)ppiioctl.h 7.2 (Berkeley) 12/16/90 32 */ 33 34 #ifndef _IOCTL_ 35 #include <sys/ioctl.h> 36 #endif 37 38 struct parparam { 39 int burst; /* chars to send/recv in one call */ 40 int timo; /* timeout: -1 blocking, 0 non-blocking, >0 msec */ 41 int delay; /* delay between polls (msec) */ 42 }; 43 44 #define PAR_BLOCK -1 45 #define PAR_NOBLOCK 0 46 47 /* default values */ 48 #define PAR_BURST 1024 49 #define PAR_TIMO PAR_BLOCK 50 #define PAR_DELAY 10 51 52 /* limits */ 53 #define PAR_BURST_MIN 1 54 #define PAR_BURST_MAX 1024 55 #define PAR_DELAY_MIN 0 56 #define PAR_DELAY_MAX 30000 57 58 #define PARIOCSPARAM _IOW('P', 0x1, struct parparam) 59 #define PARIOCGPARAM _IOR('P', 0x2, struct parparam) 60