2 * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
4 * Copyright (C) 2002-2007 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 #ifndef CONFIG_YAFFS_DIRECT
22 #define CONFIG_YAFFS_DIRECT
25 #if defined CONFIG_YAFFS_WINCE
27 #include "ywinceenv.h"
30 #elif 0 /* defined __KERNEL__ */
32 #include "moduleconfig.h"
35 #include <linux/version.h>
36 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
37 #include <linux/config.h>
39 #include <linux/kernel.h>
41 #include <linux/sched.h>
42 #include <linux/string.h>
43 #include <linux/slab.h>
44 #include <linux/vmalloc.h>
47 #define YUCHAR unsigned char
49 #define yaffs_strcpy(a,b) strcpy(a,b)
50 #define yaffs_strncpy(a,b,c) strncpy(a,b,c)
51 #define yaffs_strncmp(a,b,c) strncmp(a,b,c)
52 #define yaffs_strlen(s) strlen(s)
53 #define yaffs_sprintf sprintf
54 #define yaffs_toupper(a) toupper(a)
56 #define Y_INLINE inline
58 #define YAFFS_LOSTNFOUND_NAME "lost+found"
59 #define YAFFS_LOSTNFOUND_PREFIX "obj"
61 /* #define YPRINTF(x) printk x */
62 #define YMALLOC(x) kmalloc(x,GFP_KERNEL)
63 #define YFREE(x) kfree(x)
64 #define YMALLOC_ALT(x) vmalloc(x)
65 #define YFREE_ALT(x) vfree(x)
66 #define YMALLOC_DMA(x) YMALLOC(x)
68 // KR - added for use in scan so processes aren't blocked indefinitely.
69 #define YYIELD() schedule()
71 #define YAFFS_ROOT_MODE 0666
72 #define YAFFS_LOSTNFOUND_MODE 0666
74 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
75 #define Y_CURRENT_TIME CURRENT_TIME.tv_sec
76 #define Y_TIME_CONVERT(x) (x).tv_sec
78 #define Y_CURRENT_TIME CURRENT_TIME
79 #define Y_TIME_CONVERT(x) (x)
82 #define yaffs_SumCompare(x,y) ((x) == (y))
83 #define yaffs_strcmp(a,b) strcmp(a,b)
86 #define TSTR(x) KERN_WARNING x
87 #define TOUT(p) printk p
89 #define yaffs_trace(mask, fmt, args...) \
90 do { if ((mask) & (yaffs_traceMask|YAFFS_TRACE_ERROR)) \
91 printk(KERN_WARNING "yaffs: " fmt, ## args); \
94 #define compile_time_assertion(assertion) \
95 ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })
97 #elif defined CONFIG_YAFFS_DIRECT
99 /* Direct interface */
100 #include "ydirectenv.h"
102 #elif defined CONFIG_YAFFS_UTIL
104 /* Stuff for YAFFS utilities */
110 #include "devextras.h"
112 #define YMALLOC(x) malloc(x)
113 #define YFREE(x) free(x)
114 #define YMALLOC_ALT(x) malloc(x)
115 #define YFREE_ALT(x) free(x)
118 #define YUCHAR unsigned char
120 #define yaffs_strcpy(a,b) strcpy(a,b)
121 #define yaffs_strncpy(a,b,c) strncpy(a,b,c)
122 #define yaffs_strlen(s) strlen(s)
123 #define yaffs_sprintf sprintf
124 #define yaffs_toupper(a) toupper(a)
126 #define Y_INLINE inline
128 /* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */
129 /* #define YALERT(s) YINFO(s) */
133 #define TOUT(p) printf p
135 #define YAFFS_LOSTNFOUND_NAME "lost+found"
136 #define YAFFS_LOSTNFOUND_PREFIX "obj"
137 /* #define YPRINTF(x) printf x */
139 #define YAFFS_ROOT_MODE 0666
140 #define YAFFS_LOSTNFOUND_MODE 0666
142 #define yaffs_SumCompare(x,y) ((x) == (y))
143 #define yaffs_strcmp(a,b) strcmp(a,b)
146 /* Should have specified a configuration type */
147 #error Unknown configuration
152 extern unsigned int yaffs_traceMask;
153 extern unsigned int yaffs_wr_attempts;
157 * The flags masked in YAFFS_TRACE_ALWAYS are always traced.
160 #define YAFFS_TRACE_OS 0x00000002
161 #define YAFFS_TRACE_ALLOCATE 0x00000004
162 #define YAFFS_TRACE_SCAN 0x00000008
163 #define YAFFS_TRACE_BAD_BLOCKS 0x00000010
164 #define YAFFS_TRACE_ERASE 0x00000020
165 #define YAFFS_TRACE_GC 0x00000040
166 #define YAFFS_TRACE_WRITE 0x00000080
167 #define YAFFS_TRACE_TRACING 0x00000100
168 #define YAFFS_TRACE_DELETION 0x00000200
169 #define YAFFS_TRACE_BUFFERS 0x00000400
170 #define YAFFS_TRACE_NANDACCESS 0x00000800
171 #define YAFFS_TRACE_GC_DETAIL 0x00001000
172 #define YAFFS_TRACE_SCAN_DEBUG 0x00002000
173 #define YAFFS_TRACE_MTD 0x00004000
174 #define YAFFS_TRACE_CHECKPOINT 0x00008000
176 #define YAFFS_TRACE_VERIFY 0x00010000
177 #define YAFFS_TRACE_VERIFY_NAND 0x00020000
178 #define YAFFS_TRACE_VERIFY_FULL 0x00040000
179 #define YAFFS_TRACE_VERIFY_ALL 0x000F0000
182 #define YAFFS_TRACE_ERROR 0x40000000
183 #define YAFFS_TRACE_BUG 0x80000000
184 #define YAFFS_TRACE_ALWAYS 0xF0000000
187 #define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p);} while(0)
189 #ifndef CONFIG_YAFFS_WINCE
190 #define YBUG() T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__))