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 1993 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 #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #define L_BITSMAJOR 14 /* # of SVR4 major device bits */ 30*0Sstevel@tonic-gate #define L_BITSMINOR 18 /* # of SVR4 minor device bits */ 31*0Sstevel@tonic-gate #define L_MAXMIN 0x3ffff /* MAX minor for 3b2 software drivers. 32*0Sstevel@tonic-gate ** For 3b2 hardware devices the minor is 33*0Sstevel@tonic-gate ** restricted to 256 (0-255) 34*0Sstevel@tonic-gate */ 35*0Sstevel@tonic-gate #define O_BITSMINOR 8 /* # of SunOS 4.x minor device bits */ 36*0Sstevel@tonic-gate #define O_MAXMAJ 0xff /* SunOS 4.x max major value */ 37*0Sstevel@tonic-gate #define O_MAXMIN 0xff /* SunOS 4.x max minor value */ 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate /* convert to old dev format */ 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate #define cmpdev(x) (unsigned long)((((x)>>L_BITSMINOR) > O_MAXMAJ || \ 42*0Sstevel@tonic-gate ((x)&L_MAXMIN) > O_MAXMIN) ? NODEV : \ 43*0Sstevel@tonic-gate ((((x)>>L_BITSMINOR)<<O_BITSMINOR)|((x)&O_MAXMIN))) 44