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__
20 #if defined CONFIG_YAFFS_WINCE
22 #include "ywinceenv.h"
24 #elif defined __KERNEL__
26 #include "moduleconfig.h"
29 #include <linux/version.h>
30 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
31 #include <linux/config.h>
33 #include <linux/kernel.h>
35 #include <linux/sched.h>
36 #include <linux/string.h>
37 #include <linux/slab.h>
38 #include <linux/vmalloc.h>
41 #define YUCHAR unsigned char
43 #define yaffs_strcpy(a,b) strcpy(a,b)
44 #define yaffs_strncpy(a,b,c) strncpy(a,b,c)
45 #define yaffs_strncmp(a,b,c) strncmp(a,b,c)
46 #define yaffs_strlen(s) strlen(s)
47 #define yaffs_sprintf sprintf
48 #define yaffs_toupper(a) toupper(a)
50 #define Y_INLINE inline
52 #define YAFFS_LOSTNFOUND_NAME "lost+found"
53 #define YAFFS_LOSTNFOUND_PREFIX "obj"
55 /* #define YPRINTF(x) printk x */
56 #define YMALLOC(x) kmalloc(x,GFP_KERNEL)
57 #define YFREE(x) kfree(x)
58 #define YMALLOC_ALT(x) vmalloc(x)
59 #define YFREE_ALT(x) vfree(x)
60 #define YMALLOC_DMA(x) YMALLOC(x)
62 // KR - added for use in scan so processes aren't blocked indefinitely.
63 #define YYIELD() schedule()
65 #define YAFFS_ROOT_MODE 0666
66 #define YAFFS_LOSTNFOUND_MODE 0666
68 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
69 #define Y_CURRENT_TIME CURRENT_TIME.tv_sec
70 #define Y_TIME_CONVERT(x) (x).tv_sec
72 #define Y_CURRENT_TIME CURRENT_TIME
73 #define Y_TIME_CONVERT(x) (x)
76 #define yaffs_SumCompare(x,y) ((x) == (y))
77 #define yaffs_strcmp(a,b) strcmp(a,b)
80 #define TSTR(x) KERN_WARNING x
81 #define TOUT(p) printk p
83 #define yaffs_trace(mask, fmt, args...) \
84 do { if ((mask) & (yaffs_traceMask|YAFFS_TRACE_ERROR)) \
85 printk(KERN_WARNING "yaffs: " fmt, ## args); \
88 #define compile_time_assertion(assertion) \
89 ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })
91 #elif defined CONFIG_YAFFS_DIRECT
93 /* Direct interface */
94 #include "ydirectenv.h"
96 #elif defined CONFIG_YAFFS_UTIL
98 /* Stuff for YAFFS utilities */
104 #include "devextras.h"
106 #define YMALLOC(x) malloc(x)
107 #define YFREE(x) free(x)
108 #define YMALLOC_ALT(x) malloc(x)
109 #define YFREE_ALT(x) free(x)
112 #define YUCHAR unsigned char
114 #define yaffs_strcpy(a,b) strcpy(a,b)
115 #define yaffs_strncpy(a,b,c) strncpy(a,b,c)
116 #define yaffs_strlen(s) strlen(s)
117 #define yaffs_sprintf sprintf
118 #define yaffs_toupper(a) toupper(a)
120 #define Y_INLINE inline
122 /* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */
123 /* #define YALERT(s) YINFO(s) */
127 #define TOUT(p) printf p
129 #define YAFFS_LOSTNFOUND_NAME "lost+found"
130 #define YAFFS_LOSTNFOUND_PREFIX "obj"
131 /* #define YPRINTF(x) printf x */
133 #define YAFFS_ROOT_MODE 0666
134 #define YAFFS_LOSTNFOUND_MODE 0666
136 #define yaffs_SumCompare(x,y) ((x) == (y))
137 #define yaffs_strcmp(a,b) strcmp(a,b)
140 /* Should have specified a configuration type */
141 #error Unknown configuration
146 extern unsigned int yaffs_traceMask
;
147 extern unsigned int yaffs_wr_attempts
;
151 * The flags masked in YAFFS_TRACE_ALWAYS are always traced.
154 #define YAFFS_TRACE_OS 0x00000002
155 #define YAFFS_TRACE_ALLOCATE 0x00000004
156 #define YAFFS_TRACE_SCAN 0x00000008
157 #define YAFFS_TRACE_BAD_BLOCKS 0x00000010
158 #define YAFFS_TRACE_ERASE 0x00000020
159 #define YAFFS_TRACE_GC 0x00000040
160 #define YAFFS_TRACE_WRITE 0x00000080
161 #define YAFFS_TRACE_TRACING 0x00000100
162 #define YAFFS_TRACE_DELETION 0x00000200
163 #define YAFFS_TRACE_BUFFERS 0x00000400
164 #define YAFFS_TRACE_NANDACCESS 0x00000800
165 #define YAFFS_TRACE_GC_DETAIL 0x00001000
166 #define YAFFS_TRACE_SCAN_DEBUG 0x00002000
167 #define YAFFS_TRACE_MTD 0x00004000
168 #define YAFFS_TRACE_CHECKPOINT 0x00008000
170 #define YAFFS_TRACE_VERIFY 0x00010000
171 #define YAFFS_TRACE_VERIFY_NAND 0x00020000
172 #define YAFFS_TRACE_VERIFY_FULL 0x00040000
173 #define YAFFS_TRACE_VERIFY_ALL 0x000F0000
176 #define YAFFS_TRACE_ERROR 0x40000000
177 #define YAFFS_TRACE_BUG 0x80000000
178 #define YAFFS_TRACE_ALWAYS 0xF0000000
181 #define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p);} while(0)
183 #ifndef CONFIG_YAFFS_WINCE
184 #define YBUG() T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__))
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