2 * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
4 * Copyright (C) 2002-2010 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 #if defined CONFIG_YAFFS_WINCE
29 #include "ywinceenv.h"
31 #elif defined __KERNEL__
33 #include "moduleconfig.h"
37 #include <linux/version.h>
38 #define MTD_VERSION_CODE LINUX_VERSION_CODE
40 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
41 #include <linux/config.h>
43 #include <linux/version.h>
44 #include <linux/kernel.h>
46 #include <linux/sched.h>
47 #include <linux/string.h>
48 #include <linux/slab.h>
49 #include <linux/vmalloc.h>
50 #include <linux/xattr.h>
51 #include <linux/list.h>
52 #include <linux/types.h>
54 #include <linux/stat.h>
55 #include <linux/sort.h>
58 #define YUCHAR unsigned char
60 #define yaffs_strcat(a, b) strcat(a, b)
61 #define yaffs_strcpy(a, b) strcpy(a, b)
62 #define yaffs_strncpy(a, b, c) strncpy(a, b, c)
63 #define yaffs_strncmp(a, b, c) strncmp(a, b, c)
64 #define yaffs_strnlen(s,m) strnlen(s,m)
65 #define yaffs_sprintf sprintf
66 #define yaffs_toupper(a) toupper(a)
67 #define yaffs_sort(base, n, sz, cmp_fn) sort(base, n, sz, cmp_fn, NULL)
69 #define Y_INLINE __inline__
71 #define YAFFS_LOSTNFOUND_NAME "lost+found"
72 #define YAFFS_LOSTNFOUND_PREFIX "obj"
74 /* #define YPRINTF(x) printk x */
75 #define YMALLOC(x) kmalloc(x, GFP_NOFS)
76 #define YFREE(x) kfree(x)
77 #define YMALLOC_ALT(x) vmalloc(x)
78 #define YFREE_ALT(x) vfree(x)
79 #define YMALLOC_DMA(x) YMALLOC(x)
81 #define YYIELD() schedule()
82 #define Y_DUMP_STACK() dump_stack()
84 #define YAFFS_ROOT_MODE 0755
85 #define YAFFS_LOSTNFOUND_MODE 0700
87 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
88 #define Y_CURRENT_TIME CURRENT_TIME.tv_sec
89 #define Y_TIME_CONVERT(x) (x).tv_sec
91 #define Y_CURRENT_TIME CURRENT_TIME
92 #define Y_TIME_CONVERT(x) (x)
95 #define yaffs_sum_cmp(x, y) ((x) == (y))
96 #define yaffs_strcmp(a, b) strcmp(a, b)
99 #define TSTR(x) KERN_DEBUG x
101 #define TOUT(p) printk p
103 #define compile_time_assertion(assertion) \
104 ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })
106 #elif defined CONFIG_YAFFS_DIRECT
108 #define MTD_VERSION_CODE MTD_VERSION(2, 6, 22)
110 /* Direct interface */
111 #include "ydirectenv.h"
113 #elif defined CONFIG_YAFFS_UTIL
115 /* Stuff for YAFFS utilities */
121 #define YMALLOC(x) malloc(x)
122 #define YFREE(x) free(x)
123 #define YMALLOC_ALT(x) malloc(x)
124 #define YFREE_ALT(x) free(x)
127 #define YUCHAR unsigned char
129 #define yaffs_strcat(a, b) strcat(a, b)
130 #define yaffs_strcpy(a, b) strcpy(a, b)
131 #define yaffs_strncpy(a, b, c) strncpy(a, b, c)
132 #define yaffs_strnlen(s,m) strnlen(s,m)
133 #define yaffs_sprintf sprintf
134 #define yaffs_toupper(a) toupper(a)
136 #define Y_INLINE inline
138 /* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */
139 /* #define YALERT(s) YINFO(s) */
143 #define TOUT(p) printf p
145 #define YAFFS_LOSTNFOUND_NAME "lost+found"
146 #define YAFFS_LOSTNFOUND_PREFIX "obj"
147 /* #define YPRINTF(x) printf x */
149 #define YAFFS_ROOT_MODE 0755
150 #define YAFFS_LOSTNFOUND_MODE 0700
152 #define yaffs_sum_cmp(x, y) ((x) == (y))
153 #define yaffs_strcmp(a, b) strcmp(a, b)
156 /* Should have specified a configuration type */
157 #error Unknown configuration
161 #if defined(CONFIG_YAFFS_DIRECT) || defined(CONFIG_YAFFS_WINCE)
163 #ifdef CONFIG_YAFFSFS_PROVIDE_VALUES
186 #define O_TRUNC 01000
190 #define O_APPEND 02000
254 #define ENAMETOOLONG 36
276 #define S_IFMT 0170000
280 #define S_IFLNK 0120000
284 #define S_IFDIR 0040000
288 #define S_IFREG 0100000
292 #define S_IREAD 0000400
296 #define S_IWRITE 0000200
300 #define S_IEXEC 0000100
304 #define XATTR_CREATE 1
307 #ifndef XATTR_REPLACE
308 #define XATTR_REPLACE 2
320 #include <sys/stat.h>
327 #define Y_DUMP_STACK() do { } while (0)
333 (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),\