1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1982, 1986, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * (c) UNIX System Laboratories, Inc. 7 * All or some portions of this file are derived from material licensed 8 * to the University of California by American Telephone and Telegraph 9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 10 * the permission of UNIX System Laboratories, Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 #ifndef FAT_PARAM_H 37 #define FAT_PARAM_H 38 39 40 // Modified to support the Haiku FAT driver. 41 42 #include <sys/time.h> 43 44 #ifndef FS_SHELL 45 #include <errno.h> 46 #include_next <sys/param.h> 47 #endif // !FS_SHELL 48 49 #include "sys/types.h" 50 51 52 #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ 53 #define DEV_BSIZE (1 << DEV_BSHIFT) 54 55 #ifndef MAXPHYS /* max raw I/O transfer size */ 56 #ifdef __ILP32__ 57 #define MAXPHYS (128 * 1024) 58 #else 59 #define MAXPHYS (1024 * 1024) 60 #endif 61 #endif 62 63 /* 64 * Machine-independent constants (some used in following include files). 65 */ 66 #define SPECNAMELEN 255 /* max length of devicename */ 67 68 // BSD error codes used by the driver 69 #define EINTEGRITY 97 /* Integrity check failed */ 70 /* pseudo-errors returned inside kernel to modify return to process */ 71 #define EJUSTRETURN (-2) /* don't modify regs, just return */ 72 73 /* Macros for counting and rounding. */ 74 #define rounddown(x, y) (((x) / (y)) * (y)) 75 #define rounddown2(x, y) __align_down(x, y) /* if y is power of two */ 76 #define roundup(x, y) ((((x) + ((y) -1)) / (y)) * (y)) /* to any y */ 77 #define roundup2(x, y) __align_up(x, y) /* if y is powers of two */ 78 #define powerof2(x) ((((x) -1) & (x)) == 0) 79 80 81 #endif // FAT_PARAM_H 82