1/*
2 * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
3 *
4 * Copyright (C) 2002-2010 Aleph One Ltd.
5 *   for Toby Churchill Ltd and Brightstar Engineering
6 *
7 * Created by Charles Manning <charles@aleph1.co.uk>
8 *
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.
12 *
13 * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
14 */
15
16
17#ifndef __YPORTENV_H__
18#define __YPORTENV_H__
19
20/*
21 * Define the MTD version in terms of Linux Kernel versions
22 * This allows yaffs to be used independantly of the kernel
23 * as well as with it.
24 */
25
26#define MTD_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c))
27
28#if defined CONFIG_YAFFS_WINCE
29
30#include "ywinceenv.h"
31
32#elif defined __KERNEL__
33
34#include "moduleconfig.h"
35
36/* Linux kernel */
37
38#include <linux/version.h>
39#define MTD_VERSION_CODE LINUX_VERSION_CODE
40
41#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
42#include <linux/config.h>
43#endif
44
45#include <linux/kernel.h>
46#include <linux/mm.h>
47#include <linux/sched.h>
48#include <linux/string.h>
49#include <linux/slab.h>
50#include <linux/vmalloc.h>
51#include <linux/xattr.h>
52
53#define YCHAR char
54#define YUCHAR unsigned char
55#define _Y(x)     x
56#define yaffs_strcat(a, b)     strcat(a, b)
57#define yaffs_strcpy(a, b)     strcpy(a, b)
58#define yaffs_strncpy(a, b, c) strncpy(a, b, c)
59#define yaffs_strncmp(a, b, c) strncmp(a, b, c)
60#define yaffs_strnlen(s,m)	strnlen(s,m)
61#define yaffs_sprintf	       sprintf
62#define yaffs_toupper(a)       toupper(a)
63
64#define Y_INLINE __inline__
65
66#define YAFFS_LOSTNFOUND_NAME		"lost+found"
67#define YAFFS_LOSTNFOUND_PREFIX		"obj"
68
69/* #define YPRINTF(x) printk x */
70#define YMALLOC(x) kmalloc(x, GFP_NOFS)
71#define YFREE(x)   kfree(x)
72#define YMALLOC_ALT(x) vmalloc(x)
73#define YFREE_ALT(x)   vfree(x)
74#define YMALLOC_DMA(x) YMALLOC(x)
75
76#define YYIELD() schedule()
77#define Y_DUMP_STACK() dump_stack()
78
79#define YAFFS_ROOT_MODE			0755
80#define YAFFS_LOSTNFOUND_MODE		0700
81
82#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
83#define Y_CURRENT_TIME CURRENT_TIME.tv_sec
84#define Y_TIME_CONVERT(x) (x).tv_sec
85#else
86#define Y_CURRENT_TIME CURRENT_TIME
87#define Y_TIME_CONVERT(x) (x)
88#endif
89
90#define yaffs_sum_cmp(x, y) ((x) == (y))
91#define yaffs_strcmp(a, b) strcmp(a, b)
92
93#define TENDSTR "\n"
94#define TSTR(x) KERN_DEBUG x
95#define TCONT(x) x
96#define TOUT(p) printk p
97
98#define compile_time_assertion(assertion) \
99	({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })
100
101#elif defined CONFIG_YAFFS_DIRECT
102
103#define MTD_VERSION_CODE MTD_VERSION(2, 6, 22)
104
105/* Direct interface */
106#include "ydirectenv.h"
107
108#elif defined CONFIG_YAFFS_UTIL
109
110/* Stuff for YAFFS utilities */
111
112#include "stdlib.h"
113#include "stdio.h"
114#include "string.h"
115
116
117#define YMALLOC(x) malloc(x)
118#define YFREE(x)   free(x)
119#define YMALLOC_ALT(x) malloc(x)
120#define YFREE_ALT(x) free(x)
121
122#define YCHAR char
123#define YUCHAR unsigned char
124#define _Y(x)     x
125#define yaffs_strcat(a, b)     strcat(a, b)
126#define yaffs_strcpy(a, b)     strcpy(a, b)
127#define yaffs_strncpy(a, b, c) strncpy(a, b, c)
128#define yaffs_strnlen(s,m)	       strnlen(s,m)
129#define yaffs_sprintf	       sprintf
130#define yaffs_toupper(a)       toupper(a)
131
132#define Y_INLINE inline
133
134/* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */
135/* #define YALERT(s) YINFO(s) */
136
137#define TENDSTR "\n"
138#define TSTR(x) x
139#define TOUT(p) printf p
140
141#define YAFFS_LOSTNFOUND_NAME		"lost+found"
142#define YAFFS_LOSTNFOUND_PREFIX		"obj"
143/* #define YPRINTF(x) printf x */
144
145#define YAFFS_ROOT_MODE			0755
146#define YAFFS_LOSTNFOUND_MODE		0700
147
148#define yaffs_sum_cmp(x, y) ((x) == (y))
149#define yaffs_strcmp(a, b) strcmp(a, b)
150
151#else
152/* Should have specified a configuration type */
153#error Unknown configuration
154
155#endif
156
157#if defined(CONFIG_YAFFS_DIRECT) || defined(CONFIG_YAFFS_WINCE)
158
159#ifdef CONFIG_YAFFSFS_PROVIDE_VALUES
160
161#ifndef O_RDONLY
162#define O_RDONLY        00
163#endif
164
165#ifndef O_WRONLY
166#define O_WRONLY	01
167#endif
168
169#ifndef O_RDWR
170#define O_RDWR		02
171#endif
172
173#ifndef O_CREAT
174#define O_CREAT 	0100
175#endif
176
177#ifndef O_EXCL
178#define O_EXCL		0200
179#endif
180
181#ifndef O_TRUNC
182#define O_TRUNC		01000
183#endif
184
185#ifndef O_APPEND
186#define O_APPEND	02000
187#endif
188
189#ifndef SEEK_SET
190#define SEEK_SET	0
191#endif
192
193#ifndef SEEK_CUR
194#define SEEK_CUR	1
195#endif
196
197#ifndef SEEK_END
198#define SEEK_END	2
199#endif
200
201#ifndef EBUSY
202#define EBUSY	16
203#endif
204
205#ifndef ENODEV
206#define ENODEV	19
207#endif
208
209#ifndef EINVAL
210#define EINVAL	22
211#endif
212
213#ifndef EBADF
214#define EBADF	9
215#endif
216
217#ifndef EACCES
218#define EACCES	13
219#endif
220
221#ifndef EXDEV
222#define EXDEV	18
223#endif
224
225#ifndef ENOENT
226#define ENOENT	2
227#endif
228
229#ifndef ENOSPC
230#define ENOSPC	28
231#endif
232
233#ifndef ERANGE
234#define ERANGE 34
235#endif
236
237#ifndef ENODATA
238#define ENODATA 61
239#endif
240
241#ifndef ENOTEMPTY
242#define ENOTEMPTY 39
243#endif
244
245#ifndef ENAMETOOLONG
246#define ENAMETOOLONG 36
247#endif
248
249#ifndef ENOMEM
250#define ENOMEM 12
251#endif
252
253#ifndef EEXIST
254#define EEXIST 17
255#endif
256
257#ifndef ENOTDIR
258#define ENOTDIR 20
259#endif
260
261#ifndef EISDIR
262#define EISDIR 21
263#endif
264
265
266// Mode flags
267
268#ifndef S_IFMT
269#define S_IFMT		0170000
270#endif
271
272#ifndef S_IFLNK
273#define S_IFLNK		0120000
274#endif
275
276#ifndef S_IFDIR
277#define S_IFDIR		0040000
278#endif
279
280#ifndef S_IFREG
281#define S_IFREG		0100000
282#endif
283
284#ifndef S_IREAD
285#define S_IREAD		0000400
286#endif
287
288#ifndef S_IWRITE
289#define	S_IWRITE	0000200
290#endif
291
292#ifndef S_IEXEC
293#define	S_IEXEC	0000100
294#endif
295
296#ifndef XATTR_CREATE
297#define XATTR_CREATE 1
298#endif
299
300#ifndef XATTR_REPLACE
301#define XATTR_REPLACE 2
302#endif
303
304#ifndef R_OK
305#define R_OK	4
306#define W_OK	2
307#define X_OK	1
308#define F_OK	0
309#endif
310
311#else
312#include <errno.h>
313#include <sys/stat.h>
314#include <fcntl.h>
315#endif
316
317#endif
318
319#ifndef Y_DUMP_STACK
320#define Y_DUMP_STACK() do { } while (0)
321#endif
322
323#ifndef YBUG
324#define YBUG() do {\
325	T(YAFFS_TRACE_BUG,\
326		(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),\
327		__LINE__));\
328	Y_DUMP_STACK();\
329} while (0)
330#endif
331
332
333#endif
334