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 * Define the MTD version in terms of Linux Kernel versions
22 * This allows yaffs to be used independantly of the kernel
26 #define MTD_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
28 #if defined CONFIG_YAFFS_WINCE
30 #include "ywinceenv.h"
32 #elif defined __KERNEL__
34 #include "moduleconfig.h"
38 #include <linux/version.h>
39 #define MTD_VERSION_CODE LINUX_VERSION_CODE
41 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
42 #include <linux/config.h>
44 #include <linux/kernel.h>
46 #include <linux/sched.h>
47 #include <linux/string.h>
48 #include <linux/slab.h>
49 #include <linux/vmalloc.h>
52 #define YUCHAR unsigned char
54 #define yaffs_strcpy(a,b) strcpy(a,b)
55 #define yaffs_strncpy(a,b,c) strncpy(a,b,c)
56 #define yaffs_strncmp(a,b,c) strncmp(a,b,c)
57 #define yaffs_strlen(s) strlen(s)
58 #define yaffs_sprintf sprintf
59 #define yaffs_toupper(a) toupper(a)
61 #define Y_INLINE inline
63 #define YAFFS_LOSTNFOUND_NAME "lost+found"
64 #define YAFFS_LOSTNFOUND_PREFIX "obj"
66 /* #define YPRINTF(x) printk x */
67 #define YMALLOC(x) kmalloc(x,GFP_KERNEL)
68 #define YFREE(x) kfree(x)
69 #define YMALLOC_ALT(x) vmalloc(x)
70 #define YFREE_ALT(x) vfree(x)
71 #define YMALLOC_DMA(x) YMALLOC(x)
73 // KR - added for use in scan so processes aren't blocked indefinitely.
74 #define YYIELD() schedule()
76 #define YAFFS_ROOT_MODE 0666
77 #define YAFFS_LOSTNFOUND_MODE 0666
79 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
80 #define Y_CURRENT_TIME CURRENT_TIME.tv_sec
81 #define Y_TIME_CONVERT(x) (x).tv_sec
83 #define Y_CURRENT_TIME CURRENT_TIME
84 #define Y_TIME_CONVERT(x) (x)
87 #define yaffs_SumCompare(x,y) ((x) == (y))
88 #define yaffs_strcmp(a,b) strcmp(a,b)
91 #define TSTR(x) KERN_WARNING x
92 #define TOUT(p) printk p
94 #define yaffs_trace(mask, fmt, args...) \
95 do { if ((mask) & (yaffs_traceMask|YAFFS_TRACE_ERROR)) \
96 printk(KERN_WARNING "yaffs: " fmt, ## args); \
99 #define compile_time_assertion(assertion) \
100 ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })
102 #elif defined CONFIG_YAFFS_DIRECT
104 #define MTD_VERSION_CODE MTD_VERSION(2,6,22)
106 /* Direct interface */
107 #include "ydirectenv.h"
109 #elif defined CONFIG_YAFFS_UTIL
111 /* Stuff for YAFFS utilities */
117 #include "devextras.h"
119 #define YMALLOC(x) malloc(x)
120 #define YFREE(x) free(x)
121 #define YMALLOC_ALT(x) malloc(x)
122 #define YFREE_ALT(x) free(x)
125 #define YUCHAR unsigned char
127 #define yaffs_strcpy(a,b) strcpy(a,b)
128 #define yaffs_strncpy(a,b,c) strncpy(a,b,c)
129 #define yaffs_strlen(s) strlen(s)
130 #define yaffs_sprintf sprintf
131 #define yaffs_toupper(a) toupper(a)
133 #define Y_INLINE inline
135 /* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */
136 /* #define YALERT(s) YINFO(s) */
140 #define TOUT(p) printf p
142 #define YAFFS_LOSTNFOUND_NAME "lost+found"
143 #define YAFFS_LOSTNFOUND_PREFIX "obj"
144 /* #define YPRINTF(x) printf x */
146 #define YAFFS_ROOT_MODE 0666
147 #define YAFFS_LOSTNFOUND_MODE 0666
149 #define yaffs_SumCompare(x,y) ((x) == (y))
150 #define yaffs_strcmp(a,b) strcmp(a,b)
153 /* Should have specified a configuration type */
154 #error Unknown configuration
159 extern unsigned int yaffs_traceMask
;
160 extern unsigned int yaffs_wr_attempts
;
164 * The flags masked in YAFFS_TRACE_ALWAYS are always traced.
167 #define YAFFS_TRACE_OS 0x00000002
168 #define YAFFS_TRACE_ALLOCATE 0x00000004
169 #define YAFFS_TRACE_SCAN 0x00000008
170 #define YAFFS_TRACE_BAD_BLOCKS 0x00000010
171 #define YAFFS_TRACE_ERASE 0x00000020
172 #define YAFFS_TRACE_GC 0x00000040
173 #define YAFFS_TRACE_WRITE 0x00000080
174 #define YAFFS_TRACE_TRACING 0x00000100
175 #define YAFFS_TRACE_DELETION 0x00000200
176 #define YAFFS_TRACE_BUFFERS 0x00000400
177 #define YAFFS_TRACE_NANDACCESS 0x00000800
178 #define YAFFS_TRACE_GC_DETAIL 0x00001000
179 #define YAFFS_TRACE_SCAN_DEBUG 0x00002000
180 #define YAFFS_TRACE_MTD 0x00004000
181 #define YAFFS_TRACE_CHECKPOINT 0x00008000
183 #define YAFFS_TRACE_VERIFY 0x00010000
184 #define YAFFS_TRACE_VERIFY_NAND 0x00020000
185 #define YAFFS_TRACE_VERIFY_FULL 0x00040000
186 #define YAFFS_TRACE_VERIFY_ALL 0x000F0000
189 #define YAFFS_TRACE_ERROR 0x40000000
190 #define YAFFS_TRACE_BUG 0x80000000
191 #define YAFFS_TRACE_ALWAYS 0xF0000000
194 #define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p);} while(0)
197 #define YBUG() do {T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__));} while(0)
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