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 #include <sys/types.h> 28 #include <sys/byteorder.h> 29 30 31 /* 32 * functions to convert between host format and scsi format 33 */ 34 void 35 scsi_htos_3byte(unchar *ap, ulong nav) 36 { 37 *(ushort *)ap = (ushort)(((nav & 0xff0000) >> 16) | (nav & 0xff00)); 38 ap[2] = (unchar)nav; 39 } 40 41 void 42 scsi_htos_long(unchar *ap, ulong niv) 43 { 44 *(ulong *)ap = htonl(niv); 45 } 46 47 void 48 scsi_htos_short(unchar *ap, ushort nsv) 49 { 50 *(ushort *)ap = htons(nsv); 51 } 52 53 ulong 54 scsi_stoh_3byte(unchar *ap) 55 { 56 register ulong av = *(ulong *)ap; 57 58 return (((av & 0xff) << 16) | (av & 0xff00) | ((av & 0xff0000) >> 16)); 59 } 60 61 ulong 62 scsi_stoh_long(ulong ai) 63 { 64 return (ntohl(ai)); 65 } 66 67 ushort 68 scsi_stoh_short(ushort as) 69 { 70 return (ntohs(as)); 71 } 72