2 * YAFFS: Yet another FFS. A NAND-flash specific file system.
3 * yportenv.h: Portable services used by yaffs. This is done to allow
4 * simple migration from kernel space into app space for testing.
6 * Copyright (C) 2002 Aleph One Ltd.
7 * for Toby Churchill Ltd and Brightstar Engineering
9 * Created by Charles Manning <charles@aleph1.co.uk>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU Lesser General Public License version 2.1 as
13 * published by the Free Software Foundation.
16 * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
18 * $Id: yportenv.h,v 1.12 2007-01-19 04:07:48 charles Exp $
22 #ifndef __YPORTENV_H__
23 #define __YPORTENV_H__
25 #if defined CONFIG_YAFFS_WINCE
27 #include "ywinceenv.h"
29 #elif defined __KERNEL__
31 #include "moduleconfig.h"
34 #include <linux/version.h>
35 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
36 #include <linux/config.h>
38 #include <linux/kernel.h>
40 #include <linux/string.h>
41 #include <linux/slab.h>
42 #include <linux/vmalloc.h>
45 #define YUCHAR unsigned char
47 #define yaffs_strcpy(a,b) strcpy(a,b)
48 #define yaffs_strncpy(a,b,c) strncpy(a,b,c)
49 #define yaffs_strlen(s) strlen(s)
50 #define yaffs_sprintf sprintf
51 #define yaffs_toupper(a) toupper(a)
53 #define Y_INLINE inline
55 #define YAFFS_LOSTNFOUND_NAME "lost+found"
56 #define YAFFS_LOSTNFOUND_PREFIX "obj"
58 /* #define YPRINTF(x) printk x */
59 #define YMALLOC(x) kmalloc(x,GFP_KERNEL)
60 #define YFREE(x) kfree(x)
61 #define YMALLOC_ALT(x) vmalloc(x)
62 #define YFREE_ALT(x) vfree(x)
63 #define YMALLOC_DMA(x) YMALLOC(x)
65 // KR - added for use in scan so processes aren't blocked indefinitely.
66 #define YYIELD() schedule()
68 #define YAFFS_ROOT_MODE 0666
69 #define YAFFS_LOSTNFOUND_MODE 0666
71 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
72 #define Y_CURRENT_TIME CURRENT_TIME.tv_sec
73 #define Y_TIME_CONVERT(x) (x).tv_sec
75 #define Y_CURRENT_TIME CURRENT_TIME
76 #define Y_TIME_CONVERT(x) (x)
79 #define yaffs_SumCompare(x,y) ((x) == (y))
80 #define yaffs_strcmp(a,b) strcmp(a,b)
83 #define TSTR(x) KERN_WARNING x
84 #define TOUT(p) printk p
86 #elif defined CONFIG_YAFFS_DIRECT
88 /* Direct interface */
89 #include "ydirectenv.h"
91 #elif defined CONFIG_YAFFS_UTIL
93 /* Stuff for YAFFS utilities */
99 #include "devextras.h"
101 #define YMALLOC(x) malloc(x)
102 #define YFREE(x) free(x)
103 #define YMALLOC_ALT(x) malloc(x)
104 #define YFREE_ALT(x) free(x)
107 #define YUCHAR unsigned char
109 #define yaffs_strcpy(a,b) strcpy(a,b)
110 #define yaffs_strncpy(a,b,c) strncpy(a,b,c)
111 #define yaffs_strlen(s) strlen(s)
112 #define yaffs_sprintf sprintf
113 #define yaffs_toupper(a) toupper(a)
115 #define Y_INLINE inline
117 /* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */
118 /* #define YALERT(s) YINFO(s) */
122 #define TOUT(p) printf p
124 #define YAFFS_LOSTNFOUND_NAME "lost+found"
125 #define YAFFS_LOSTNFOUND_PREFIX "obj"
126 /* #define YPRINTF(x) printf x */
128 #define YAFFS_ROOT_MODE 0666
129 #define YAFFS_LOSTNFOUND_MODE 0666
131 #define yaffs_SumCompare(x,y) ((x) == (y))
132 #define yaffs_strcmp(a,b) strcmp(a,b)
135 /* Should have specified a configuration type */
136 #error Unknown configuration
140 extern unsigned yaffs_traceMask;
142 #define YAFFS_TRACE_ERROR 0x00000001
143 #define YAFFS_TRACE_OS 0x00000002
144 #define YAFFS_TRACE_ALLOCATE 0x00000004
145 #define YAFFS_TRACE_SCAN 0x00000008
146 #define YAFFS_TRACE_BAD_BLOCKS 0x00000010
147 #define YAFFS_TRACE_ERASE 0x00000020
148 #define YAFFS_TRACE_GC 0x00000040
149 #define YAFFS_TRACE_WRITE 0x00000080
150 #define YAFFS_TRACE_TRACING 0x00000100
151 #define YAFFS_TRACE_DELETION 0x00000200
152 #define YAFFS_TRACE_BUFFERS 0x00000400
153 #define YAFFS_TRACE_NANDACCESS 0x00000800
154 #define YAFFS_TRACE_GC_DETAIL 0x00001000
155 #define YAFFS_TRACE_SCAN_DEBUG 0x00002000
156 #define YAFFS_TRACE_MTD 0x00004000
157 #define YAFFS_TRACE_CHECKPOINT 0x00008000
158 #define YAFFS_TRACE_ALWAYS 0x40000000
159 #define YAFFS_TRACE_BUG 0x80000000
161 #define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ERROR)) TOUT(p);} while(0)
163 #ifndef CONFIG_YAFFS_WINCE
164 #define YBUG() T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__))