mirror of
https://github.com/openwrt/openwrt.git
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334 lines
5.8 KiB
C
334 lines
5.8 KiB
C
/*
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* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
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*
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* Copyright (C) 2002-2010 Aleph One Ltd.
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* for Toby Churchill Ltd and Brightstar Engineering
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*
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* Created by Charles Manning <charles@aleph1.co.uk>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 2.1 as
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* published by the Free Software Foundation.
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*
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* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
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*/
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#ifndef __YPORTENV_H__
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#define __YPORTENV_H__
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/*
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* Define the MTD version in terms of Linux Kernel versions
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* This allows yaffs to be used independantly of the kernel
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* as well as with it.
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*/
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#define MTD_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c))
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#if defined CONFIG_YAFFS_WINCE
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#include "ywinceenv.h"
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#elif defined __KERNEL__
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#include "moduleconfig.h"
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/* Linux kernel */
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#include <linux/version.h>
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#define MTD_VERSION_CODE LINUX_VERSION_CODE
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
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#include <linux/config.h>
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#endif
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/sched.h>
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#include <linux/string.h>
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#include <linux/slab.h>
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#include <linux/vmalloc.h>
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#include <linux/xattr.h>
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#define YCHAR char
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#define YUCHAR unsigned char
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#define _Y(x) x
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#define yaffs_strcat(a, b) strcat(a, b)
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#define yaffs_strcpy(a, b) strcpy(a, b)
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#define yaffs_strncpy(a, b, c) strncpy(a, b, c)
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#define yaffs_strncmp(a, b, c) strncmp(a, b, c)
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#define yaffs_strnlen(s,m) strnlen(s,m)
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#define yaffs_sprintf sprintf
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#define yaffs_toupper(a) toupper(a)
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#define Y_INLINE __inline__
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#define YAFFS_LOSTNFOUND_NAME "lost+found"
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#define YAFFS_LOSTNFOUND_PREFIX "obj"
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/* #define YPRINTF(x) printk x */
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#define YMALLOC(x) kmalloc(x, GFP_NOFS)
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#define YFREE(x) kfree(x)
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#define YMALLOC_ALT(x) vmalloc(x)
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#define YFREE_ALT(x) vfree(x)
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#define YMALLOC_DMA(x) YMALLOC(x)
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#define YYIELD() schedule()
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#define Y_DUMP_STACK() dump_stack()
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#define YAFFS_ROOT_MODE 0755
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#define YAFFS_LOSTNFOUND_MODE 0700
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#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
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#define Y_CURRENT_TIME CURRENT_TIME.tv_sec
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#define Y_TIME_CONVERT(x) (x).tv_sec
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#else
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#define Y_CURRENT_TIME CURRENT_TIME
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#define Y_TIME_CONVERT(x) (x)
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#endif
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#define yaffs_sum_cmp(x, y) ((x) == (y))
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#define yaffs_strcmp(a, b) strcmp(a, b)
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#define TENDSTR "\n"
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#define TSTR(x) KERN_DEBUG x
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#define TCONT(x) x
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#define TOUT(p) printk p
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#define compile_time_assertion(assertion) \
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({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })
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#elif defined CONFIG_YAFFS_DIRECT
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#define MTD_VERSION_CODE MTD_VERSION(2, 6, 22)
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/* Direct interface */
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#include "ydirectenv.h"
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#elif defined CONFIG_YAFFS_UTIL
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/* Stuff for YAFFS utilities */
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#include "stdlib.h"
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#include "stdio.h"
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#include "string.h"
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#define YMALLOC(x) malloc(x)
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#define YFREE(x) free(x)
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#define YMALLOC_ALT(x) malloc(x)
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#define YFREE_ALT(x) free(x)
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#define YCHAR char
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#define YUCHAR unsigned char
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#define _Y(x) x
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#define yaffs_strcat(a, b) strcat(a, b)
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#define yaffs_strcpy(a, b) strcpy(a, b)
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#define yaffs_strncpy(a, b, c) strncpy(a, b, c)
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#define yaffs_strnlen(s,m) strnlen(s,m)
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#define yaffs_sprintf sprintf
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#define yaffs_toupper(a) toupper(a)
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#define Y_INLINE inline
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/* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */
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/* #define YALERT(s) YINFO(s) */
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#define TENDSTR "\n"
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#define TSTR(x) x
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#define TOUT(p) printf p
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#define YAFFS_LOSTNFOUND_NAME "lost+found"
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#define YAFFS_LOSTNFOUND_PREFIX "obj"
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/* #define YPRINTF(x) printf x */
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#define YAFFS_ROOT_MODE 0755
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#define YAFFS_LOSTNFOUND_MODE 0700
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#define yaffs_sum_cmp(x, y) ((x) == (y))
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#define yaffs_strcmp(a, b) strcmp(a, b)
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#else
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/* Should have specified a configuration type */
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#error Unknown configuration
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#endif
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#if defined(CONFIG_YAFFS_DIRECT) || defined(CONFIG_YAFFS_WINCE)
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#ifdef CONFIG_YAFFSFS_PROVIDE_VALUES
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#ifndef O_RDONLY
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#define O_RDONLY 00
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#endif
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#ifndef O_WRONLY
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#define O_WRONLY 01
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#endif
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#ifndef O_RDWR
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#define O_RDWR 02
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#endif
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#ifndef O_CREAT
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#define O_CREAT 0100
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#endif
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#ifndef O_EXCL
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#define O_EXCL 0200
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#endif
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#ifndef O_TRUNC
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#define O_TRUNC 01000
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#endif
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#ifndef O_APPEND
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#define O_APPEND 02000
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#endif
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#ifndef SEEK_SET
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#define SEEK_SET 0
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#endif
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#ifndef SEEK_CUR
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#define SEEK_CUR 1
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#endif
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#ifndef SEEK_END
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#define SEEK_END 2
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#endif
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#ifndef EBUSY
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#define EBUSY 16
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#endif
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#ifndef ENODEV
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#define ENODEV 19
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#endif
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#ifndef EINVAL
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#define EINVAL 22
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#endif
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#ifndef EBADF
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#define EBADF 9
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#endif
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#ifndef EACCES
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#define EACCES 13
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#endif
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#ifndef EXDEV
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#define EXDEV 18
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#endif
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#ifndef ENOENT
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#define ENOENT 2
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#endif
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#ifndef ENOSPC
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#define ENOSPC 28
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#endif
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#ifndef ERANGE
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#define ERANGE 34
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#endif
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#ifndef ENODATA
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#define ENODATA 61
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#endif
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#ifndef ENOTEMPTY
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#define ENOTEMPTY 39
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#endif
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#ifndef ENAMETOOLONG
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#define ENAMETOOLONG 36
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#endif
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#ifndef ENOMEM
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#define ENOMEM 12
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#endif
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#ifndef EEXIST
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#define EEXIST 17
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#endif
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#ifndef ENOTDIR
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#define ENOTDIR 20
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#endif
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#ifndef EISDIR
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#define EISDIR 21
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#endif
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// Mode flags
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#ifndef S_IFMT
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#define S_IFMT 0170000
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#endif
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#ifndef S_IFLNK
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#define S_IFLNK 0120000
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#endif
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#ifndef S_IFDIR
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#define S_IFDIR 0040000
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#endif
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#ifndef S_IFREG
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#define S_IFREG 0100000
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#endif
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#ifndef S_IREAD
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#define S_IREAD 0000400
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#endif
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#ifndef S_IWRITE
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#define S_IWRITE 0000200
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#endif
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#ifndef S_IEXEC
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#define S_IEXEC 0000100
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#endif
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#ifndef XATTR_CREATE
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#define XATTR_CREATE 1
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#endif
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#ifndef XATTR_REPLACE
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#define XATTR_REPLACE 2
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#endif
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#ifndef R_OK
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#define R_OK 4
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#define W_OK 2
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#define X_OK 1
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#define F_OK 0
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#endif
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#else
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#include <errno.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#endif
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#endif
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#ifndef Y_DUMP_STACK
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#define Y_DUMP_STACK() do { } while (0)
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#endif
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#ifndef YBUG
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#define YBUG() do {\
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T(YAFFS_TRACE_BUG,\
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(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),\
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__LINE__));\
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Y_DUMP_STACK();\
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} while (0)
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#endif
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#endif
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