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.
17 #ifndef __YPORTENV_H__
18 #define __YPORTENV_H__
21 * Define the MTD version in terms of Linux Kernel versions
22 * This allows yaffs to be used independantly of the kernel
26 #define MTD_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c))
28 #if defined CONFIG_YAFFS_WINCE
30 #include "ywinceenv.h"
32 #elif defined __KERNEL__
34 #include "moduleconfig.h"
38 #include <linux/version.h>
39 #define MTD_VERSION_CODE LINUX_VERSION_CODE
41 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
42 #include <linux/config.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>
52 #define YUCHAR unsigned char
54 #define yaffs_strcat(a, b) strcat(a, b)
55 #define yaffs_strcpy(a, b) strcpy(a, b)
56 #define yaffs_strncpy(a, b, c) strncpy(a, b, c)
57 #define yaffs_strncmp(a, b, c) strncmp(a, b, c)
58 #define yaffs_strnlen(s,m) strnlen(s,m)
59 #define yaffs_sprintf sprintf
60 #define yaffs_toupper(a) toupper(a)
62 #define Y_INLINE inline
64 #define YAFFS_LOSTNFOUND_NAME "lost+found"
65 #define YAFFS_LOSTNFOUND_PREFIX "obj"
67 /* #define YPRINTF(x) printk x */
68 #define YMALLOC(x) kmalloc(x, GFP_NOFS)
69 #define YFREE(x) kfree(x)
70 #define YMALLOC_ALT(x) vmalloc(x)
71 #define YFREE_ALT(x) vfree(x)
72 #define YMALLOC_DMA(x) YMALLOC(x)
74 #define YYIELD() schedule()
75 #define Y_DUMP_STACK() dump_stack()
77 #define YAFFS_ROOT_MODE 0755
78 #define YAFFS_LOSTNFOUND_MODE 0700
80 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
81 #define Y_CURRENT_TIME CURRENT_TIME.tv_sec
82 #define Y_TIME_CONVERT(x) (x).tv_sec
84 #define Y_CURRENT_TIME CURRENT_TIME
85 #define Y_TIME_CONVERT(x) (x)
88 #define yaffs_SumCompare(x, y) ((x) == (y))
89 #define yaffs_strcmp(a, b) strcmp(a, b)
92 #define TSTR(x) KERN_DEBUG x
94 #define TOUT(p) printk p
96 #define compile_time_assertion(assertion) \
97 ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })
99 #elif defined CONFIG_YAFFS_DIRECT
101 #define MTD_VERSION_CODE MTD_VERSION(2, 6, 22)
103 /* Direct interface */
104 #include "ydirectenv.h"
106 #elif defined CONFIG_YAFFS_UTIL
108 /* Stuff for YAFFS utilities */
114 #include "devextras.h"
116 #define YMALLOC(x) malloc(x)
117 #define YFREE(x) free(x)
118 #define YMALLOC_ALT(x) malloc(x)
119 #define YFREE_ALT(x) free(x)
122 #define YUCHAR unsigned char
124 #define yaffs_strcat(a, b) strcat(a, b)
125 #define yaffs_strcpy(a, b) strcpy(a, b)
126 #define yaffs_strncpy(a, b, c) strncpy(a, b, c)
127 #define yaffs_strnlen(s,m) strnlen(s,m)
128 #define yaffs_sprintf sprintf
129 #define yaffs_toupper(a) toupper(a)
131 #define Y_INLINE inline
133 /* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */
134 /* #define YALERT(s) YINFO(s) */
138 #define TOUT(p) printf p
140 #define YAFFS_LOSTNFOUND_NAME "lost+found"
141 #define YAFFS_LOSTNFOUND_PREFIX "obj"
142 /* #define YPRINTF(x) printf x */
144 #define YAFFS_ROOT_MODE 0755
145 #define YAFFS_LOSTNFOUND_MODE 0700
147 #define yaffs_SumCompare(x, y) ((x) == (y))
148 #define yaffs_strcmp(a, b) strcmp(a, b)
151 /* Should have specified a configuration type */
152 #error Unknown configuration
157 #define Y_DUMP_STACK() do { } while (0)
163 (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),\