2 * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
4 * Copyright (C) 2002-2011 Aleph One Ltd.
5 * for Toby Churchill Ltd and Brightstar Engineering
7 * Created by Charles Manning <charles@aleph1.co.uk>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU Lesser General Public License version 2.1 as
11 * published by the Free Software Foundation.
13 * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
16 #ifndef __YPORTENV_H__
17 #define __YPORTENV_H__
20 * Define the MTD version in terms of Linux Kernel versions
21 * This allows yaffs to be used independantly of the kernel
25 #define MTD_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c))
27 #ifdef YAFFS_OUT_OF_TREE
28 #include "moduleconfig.h"
31 #include <linux/version.h>
32 #define MTD_VERSION_CODE LINUX_VERSION_CODE
34 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
35 #include <linux/config.h>
37 #include <linux/version.h>
38 #include <linux/kernel.h>
40 #include <linux/sched.h>
41 #include <linux/string.h>
42 #include <linux/slab.h>
43 #include <linux/vmalloc.h>
44 #include <linux/xattr.h>
45 #include <linux/list.h>
46 #include <linux/types.h>
48 #include <linux/stat.h>
49 #include <linux/sort.h>
50 #include <linux/bitops.h>
52 /* These type wrappings are used to support Unicode names in WinCE. */
54 #define YUCHAR unsigned char
57 #define YAFFS_LOSTNFOUND_NAME "lost+found"
58 #define YAFFS_LOSTNFOUND_PREFIX "obj"
61 #define YAFFS_ROOT_MODE 0755
62 #define YAFFS_LOSTNFOUND_MODE 0700
64 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
65 #define Y_CURRENT_TIME CURRENT_TIME.tv_sec
66 #define Y_TIME_CONVERT(x) (x).tv_sec
68 #define Y_CURRENT_TIME CURRENT_TIME
69 #define Y_TIME_CONVERT(x) (x)
72 #define compile_time_assertion(assertion) \
73 ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })
76 #define yaffs_trace(msk, fmt, ...) do { \
77 if (yaffs_trace_mask & (msk)) \
78 printk(KERN_DEBUG "yaffs: " fmt "\n", ##__VA_ARGS__); \