1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 1999 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/types.h> 30 #include <sys/byteorder.h> 31 32 33 /* 34 * functions to convert between host format and scsi format 35 */ 36 void 37 scsi_htos_3byte(unchar *ap, ulong nav) 38 { 39 *(ushort *)ap = (ushort)(((nav & 0xff0000) >> 16) | (nav & 0xff00)); 40 ap[2] = (unchar)nav; 41 } 42 43 void 44 scsi_htos_long(unchar *ap, ulong niv) 45 { 46 *(ulong *)ap = htonl(niv); 47 } 48 49 void 50 scsi_htos_short(unchar *ap, ushort nsv) 51 { 52 *(ushort *)ap = htons(nsv); 53 } 54 55 ulong 56 scsi_stoh_3byte(unchar *ap) 57 { 58 register ulong av = *(ulong *)ap; 59 60 return (((av & 0xff) << 16) | (av & 0xff00) | ((av & 0xff0000) >> 16)); 61 } 62 63 ulong 64 scsi_stoh_long(ulong ai) 65 { 66 return (ntohl(ai)); 67 } 68 69 ushort 70 scsi_stoh_short(ushort as) 71 { 72 return (ntohs(as)); 73 } 74