1 /* $NetBSD: parioctl.h,v 1.5 1994/10/26 02:32:00 cgd 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)ppiioctl.h 7.2 (Berkeley) 12/16/90 36 */ 37 38 #ifndef _IOCTL_ 39 #include <sys/ioctl.h> 40 #endif 41 42 struct parparam { 43 int burst; /* chars to send/recv in one call */ 44 int timo; /* timeout: -1 blocking, 0 non-blocking, >0 msec */ 45 int delay; /* delay between polls (msec) */ 46 }; 47 48 #define PAR_BLOCK -1 49 #define PAR_NOBLOCK 0 50 51 /* default values */ 52 #define PAR_BURST 1024 53 #define PAR_TIMO PAR_BLOCK 54 #define PAR_DELAY 10 55 56 /* limits */ 57 #define PAR_BURST_MIN 1 58 #define PAR_BURST_MAX 1024 59 #define PAR_DELAY_MIN 0 60 #define PAR_DELAY_MAX 30000 61 62 #define PARIOCSPARAM _IOW('P', 0x1, struct parparam) 63 #define PARIOCGPARAM _IOR('P', 0x2, struct parparam) 64