1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1997 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28*0Sstevel@tonic-gate /* All Rights Reserved */ 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate /* 31*0Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988 32*0Sstevel@tonic-gate * The Regents of the University of California 33*0Sstevel@tonic-gate * All Rights Reserved 34*0Sstevel@tonic-gate * 35*0Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from 36*0Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its 37*0Sstevel@tonic-gate * contributors. 38*0Sstevel@tonic-gate */ 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate #ifndef _SYS_IOCCOM_H 41*0Sstevel@tonic-gate #define _SYS_IOCCOM_H 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate #ifdef __cplusplus 46*0Sstevel@tonic-gate extern "C" { 47*0Sstevel@tonic-gate #endif 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate /* 50*0Sstevel@tonic-gate * Ioctl's have the command encoded in the lower word, 51*0Sstevel@tonic-gate * and the size of any in or out parameters in the upper 52*0Sstevel@tonic-gate * word. The high 2 bits of the upper word are used 53*0Sstevel@tonic-gate * to encode the in/out status of the parameter; for now 54*0Sstevel@tonic-gate * we restrict parameters to at most 255 bytes. 55*0Sstevel@tonic-gate */ 56*0Sstevel@tonic-gate #define IOCPARM_MASK 0xff /* parameters must be < 256 bytes */ 57*0Sstevel@tonic-gate #define IOC_VOID 0x20000000 /* no parameters */ 58*0Sstevel@tonic-gate #define IOC_OUT 0x40000000 /* copy out parameters */ 59*0Sstevel@tonic-gate #define IOC_IN 0x80000000 /* copy in parameters */ 60*0Sstevel@tonic-gate #define IOC_INOUT (IOC_IN|IOC_OUT) 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate /* 63*0Sstevel@tonic-gate * The 0x20000000 is so we can distinguish new ioctl's from old. 64*0Sstevel@tonic-gate */ 65*0Sstevel@tonic-gate #define _IO(x, y) (IOC_VOID|(x<<8)|y) 66*0Sstevel@tonic-gate #define _IOR(x, y, t) \ 67*0Sstevel@tonic-gate ((int)((uint32_t) \ 68*0Sstevel@tonic-gate (IOC_OUT|(((sizeof (t))&IOCPARM_MASK)<<16)|(x<<8)|y))) 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate #define _IORN(x, y, t) ((int)((uint32_t)(IOC_OUT|(((t)&IOCPARM_MASK)<<16)| \ 71*0Sstevel@tonic-gate (x<<8)|y))) 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate #define _IOW(x, y, t) \ 74*0Sstevel@tonic-gate ((int)((uint32_t)(IOC_IN|(((sizeof (t))&IOCPARM_MASK)<<16)| \ 75*0Sstevel@tonic-gate (x<<8)|y))) 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate #define _IOWN(x, y, t) ((int32_t)(uint32_t)(IOC_IN|(((t)&IOCPARM_MASK)<<16)| \ 78*0Sstevel@tonic-gate (x<<8)|y)) 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate #define _IOWR(x, y, t) \ 81*0Sstevel@tonic-gate ((int)((uint32_t)(IOC_INOUT|(((sizeof (t))&IOCPARM_MASK)<<16)| \ 82*0Sstevel@tonic-gate (x<<8)|y))) 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate #define _IOWRN(x, y, t) \ 85*0Sstevel@tonic-gate ((int)((uint32_t)(IOC_INOUT|(((t)&IOCPARM_MASK)<<16)| \ 86*0Sstevel@tonic-gate (x<<8)|y))) 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate #ifdef __cplusplus 89*0Sstevel@tonic-gate } 90*0Sstevel@tonic-gate #endif 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate #endif /* _SYS_IOCCOM_H */ 93