1*43a90889SApple OSS Distributions /* 2*43a90889SApple OSS Distributions * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3*43a90889SApple OSS Distributions * 4*43a90889SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*43a90889SApple OSS Distributions * 6*43a90889SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*43a90889SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*43a90889SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*43a90889SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*43a90889SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*43a90889SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*43a90889SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*43a90889SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*43a90889SApple OSS Distributions * 15*43a90889SApple OSS Distributions * Please obtain a copy of the License at 16*43a90889SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*43a90889SApple OSS Distributions * 18*43a90889SApple OSS Distributions * The Original Code and all software distributed under the License are 19*43a90889SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*43a90889SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*43a90889SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*43a90889SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*43a90889SApple OSS Distributions * Please see the License for the specific language governing rights and 24*43a90889SApple OSS Distributions * limitations under the License. 25*43a90889SApple OSS Distributions * 26*43a90889SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*43a90889SApple OSS Distributions */ 28*43a90889SApple OSS Distributions /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ 29*43a90889SApple OSS Distributions /*- 30*43a90889SApple OSS Distributions * Copyright (c) 1982, 1986, 1990, 1993, 1994 31*43a90889SApple OSS Distributions * The Regents of the University of California. All rights reserved. 32*43a90889SApple OSS Distributions * 33*43a90889SApple OSS Distributions * Redistribution and use in source and binary forms, with or without 34*43a90889SApple OSS Distributions * modification, are permitted provided that the following conditions 35*43a90889SApple OSS Distributions * are met: 36*43a90889SApple OSS Distributions * 1. Redistributions of source code must retain the above copyright 37*43a90889SApple OSS Distributions * notice, this list of conditions and the following disclaimer. 38*43a90889SApple OSS Distributions * 2. Redistributions in binary form must reproduce the above copyright 39*43a90889SApple OSS Distributions * notice, this list of conditions and the following disclaimer in the 40*43a90889SApple OSS Distributions * documentation and/or other materials provided with the distribution. 41*43a90889SApple OSS Distributions * 3. All advertising materials mentioning features or use of this software 42*43a90889SApple OSS Distributions * must display the following acknowledgement: 43*43a90889SApple OSS Distributions * This product includes software developed by the University of 44*43a90889SApple OSS Distributions * California, Berkeley and its contributors. 45*43a90889SApple OSS Distributions * 4. Neither the name of the University nor the names of its contributors 46*43a90889SApple OSS Distributions * may be used to endorse or promote products derived from this software 47*43a90889SApple OSS Distributions * without specific prior written permission. 48*43a90889SApple OSS Distributions * 49*43a90889SApple OSS Distributions * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50*43a90889SApple OSS Distributions * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51*43a90889SApple OSS Distributions * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52*43a90889SApple OSS Distributions * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53*43a90889SApple OSS Distributions * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54*43a90889SApple OSS Distributions * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55*43a90889SApple OSS Distributions * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56*43a90889SApple OSS Distributions * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57*43a90889SApple OSS Distributions * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58*43a90889SApple OSS Distributions * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59*43a90889SApple OSS Distributions * SUCH DAMAGE. 60*43a90889SApple OSS Distributions * 61*43a90889SApple OSS Distributions * @(#)ioccom.h 8.2 (Berkeley) 3/28/94 62*43a90889SApple OSS Distributions */ 63*43a90889SApple OSS Distributions 64*43a90889SApple OSS Distributions #ifndef _SYS_IOCCOM_H_ 65*43a90889SApple OSS Distributions #define _SYS_IOCCOM_H_ 66*43a90889SApple OSS Distributions 67*43a90889SApple OSS Distributions #include <sys/_types.h> 68*43a90889SApple OSS Distributions 69*43a90889SApple OSS Distributions /* 70*43a90889SApple OSS Distributions * Ioctl's have the command encoded in the lower word, and the size of 71*43a90889SApple OSS Distributions * any in or out parameters in the upper word. The high 3 bits of the 72*43a90889SApple OSS Distributions * upper word are used to encode the in/out status of the parameter. 73*43a90889SApple OSS Distributions */ 74*43a90889SApple OSS Distributions #define IOCPARM_MASK 0x1fff /* parameter length, at most 13 bits */ 75*43a90889SApple OSS Distributions #define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK) 76*43a90889SApple OSS Distributions #define IOCBASECMD(x) ((x) & ~(IOCPARM_MASK << 16)) 77*43a90889SApple OSS Distributions #define IOCGROUP(x) (((x) >> 8) & 0xff) 78*43a90889SApple OSS Distributions 79*43a90889SApple OSS Distributions #define IOCPARM_MAX (IOCPARM_MASK + 1) /* max size of ioctl args */ 80*43a90889SApple OSS Distributions /* no parameters */ 81*43a90889SApple OSS Distributions #define IOC_VOID (__uint32_t)0x20000000 82*43a90889SApple OSS Distributions /* copy parameters out */ 83*43a90889SApple OSS Distributions #define IOC_OUT (__uint32_t)0x40000000 84*43a90889SApple OSS Distributions /* copy parameters in */ 85*43a90889SApple OSS Distributions #define IOC_IN (__uint32_t)0x80000000 86*43a90889SApple OSS Distributions /* copy parameters in and out */ 87*43a90889SApple OSS Distributions #define IOC_INOUT (IOC_IN|IOC_OUT) 88*43a90889SApple OSS Distributions /* mask for IN/OUT/VOID */ 89*43a90889SApple OSS Distributions #define IOC_DIRMASK (__uint32_t)0xe0000000 90*43a90889SApple OSS Distributions 91*43a90889SApple OSS Distributions #define _IOC(inout, group, num, len) \ 92*43a90889SApple OSS Distributions (inout | ((len & IOCPARM_MASK) << 16) | ((group) << 8) | (num)) 93*43a90889SApple OSS Distributions #define _IO(g, n) _IOC(IOC_VOID, (g), (n), 0) 94*43a90889SApple OSS Distributions #define _IOR(g, n, t) _IOC(IOC_OUT, (g), (n), sizeof(t)) 95*43a90889SApple OSS Distributions #define _IOW(g, n, t) _IOC(IOC_IN, (g), (n), sizeof(t)) 96*43a90889SApple OSS Distributions /* this should be _IORW, but stdio got there first */ 97*43a90889SApple OSS Distributions #define _IOWR(g, n, t) _IOC(IOC_INOUT, (g), (n), sizeof(t)) 98*43a90889SApple OSS Distributions 99*43a90889SApple OSS Distributions #endif /* !_SYS_IOCCOM_H_ */ 100