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      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