1 /* 2 * YAFFS: Yet another Flash File System . A NAND-flash specific file system. 3 * 4 * Copyright (C) 2002-2007 Aleph One Ltd. 5 * for Toby Churchill Ltd and Brightstar Engineering 6 * 7 * Created by Charles Manning <charles@aleph1.co.uk> 8 * 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. 12 * 13 * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. 14 */ 15 16 17 #ifndef __YPORTENV_H__ 18 #define __YPORTENV_H__ 19 20 /* XXX U-BOOT XXX */ 21 #ifndef CONFIG_YAFFS_DIRECT 22 #define CONFIG_YAFFS_DIRECT 23 #endif 24 25 #if defined CONFIG_YAFFS_WINCE 26 27 #include "ywinceenv.h" 28 29 /* XXX U-BOOT XXX */ 30 #elif 0 /* defined __KERNEL__ */ 31 32 #include "moduleconfig.h" 33 34 /* Linux kernel */ 35 #include <linux/version.h> 36 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) 37 #include <linux/config.h> 38 #endif 39 #include <linux/kernel.h> 40 #include <linux/mm.h> 41 #include <linux/sched.h> 42 #include <linux/string.h> 43 #include <linux/slab.h> 44 #include <linux/vmalloc.h> 45 46 #define YCHAR char 47 #define YUCHAR unsigned char 48 #define _Y(x) x 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) 55 56 #define Y_INLINE inline 57 58 #define YAFFS_LOSTNFOUND_NAME "lost+found" 59 #define YAFFS_LOSTNFOUND_PREFIX "obj" 60 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) 67 68 // KR - added for use in scan so processes aren't blocked indefinitely. 69 #define YYIELD() schedule() 70 71 #define YAFFS_ROOT_MODE 0666 72 #define YAFFS_LOSTNFOUND_MODE 0666 73 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 77 #else 78 #define Y_CURRENT_TIME CURRENT_TIME 79 #define Y_TIME_CONVERT(x) (x) 80 #endif 81 82 #define yaffs_SumCompare(x,y) ((x) == (y)) 83 #define yaffs_strcmp(a,b) strcmp(a,b) 84 85 #define TENDSTR "\n" 86 #define TSTR(x) KERN_WARNING x 87 #define TOUT(p) printk p 88 89 #define yaffs_trace(mask, fmt, args...) \ 90 do { if ((mask) & (yaffs_traceMask|YAFFS_TRACE_ERROR)) \ 91 printk(KERN_WARNING "yaffs: " fmt, ## args); \ 92 } while (0) 93 94 #define compile_time_assertion(assertion) \ 95 ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; }) 96 97 #elif defined CONFIG_YAFFS_DIRECT 98 99 /* Direct interface */ 100 #include "ydirectenv.h" 101 102 #elif defined CONFIG_YAFFS_UTIL 103 104 /* Stuff for YAFFS utilities */ 105 106 #include "stdlib.h" 107 #include "stdio.h" 108 #include "string.h" 109 110 #include "devextras.h" 111 112 #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) 116 117 #define YCHAR char 118 #define YUCHAR unsigned char 119 #define _Y(x) x 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) 125 126 #define Y_INLINE inline 127 128 /* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */ 129 /* #define YALERT(s) YINFO(s) */ 130 131 #define TENDSTR "\n" 132 #define TSTR(x) x 133 #define TOUT(p) printf p 134 135 #define YAFFS_LOSTNFOUND_NAME "lost+found" 136 #define YAFFS_LOSTNFOUND_PREFIX "obj" 137 /* #define YPRINTF(x) printf x */ 138 139 #define YAFFS_ROOT_MODE 0666 140 #define YAFFS_LOSTNFOUND_MODE 0666 141 142 #define yaffs_SumCompare(x,y) ((x) == (y)) 143 #define yaffs_strcmp(a,b) strcmp(a,b) 144 145 #else 146 /* Should have specified a configuration type */ 147 #error Unknown configuration 148 149 #endif 150 151 /* see yaffs_fs.c */ 152 extern unsigned int yaffs_traceMask; 153 extern unsigned int yaffs_wr_attempts; 154 155 /* 156 * Tracing flags. 157 * The flags masked in YAFFS_TRACE_ALWAYS are always traced. 158 */ 159 160 #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 175 176 #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 180 181 182 #define YAFFS_TRACE_ERROR 0x40000000 183 #define YAFFS_TRACE_BUG 0x80000000 184 #define YAFFS_TRACE_ALWAYS 0xF0000000 185 186 187 #define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p);} while(0) 188 189 #ifndef CONFIG_YAFFS_WINCE 190 #define YBUG() T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__)) 191 #endif 192 193 #endif 194