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 #if defined CONFIG_YAFFS_WINCE 21 22 #include "ywinceenv.h" 23 24 #elif defined __KERNEL__ 25 26 #include "moduleconfig.h" 27 28 /* Linux kernel */ 29 #include <linux/version.h> 30 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) 31 #include <linux/config.h> 32 #endif 33 #include <linux/kernel.h> 34 #include <linux/mm.h> 35 #include <linux/sched.h> 36 #include <linux/string.h> 37 #include <linux/slab.h> 38 #include <linux/vmalloc.h> 39 40 #define YCHAR char 41 #define YUCHAR unsigned char 42 #define _Y(x) x 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) 49 50 #define Y_INLINE inline 51 52 #define YAFFS_LOSTNFOUND_NAME "lost+found" 53 #define YAFFS_LOSTNFOUND_PREFIX "obj" 54 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) 61 62 // KR - added for use in scan so processes aren't blocked indefinitely. 63 #define YYIELD() schedule() 64 65 #define YAFFS_ROOT_MODE 0666 66 #define YAFFS_LOSTNFOUND_MODE 0666 67 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 71 #else 72 #define Y_CURRENT_TIME CURRENT_TIME 73 #define Y_TIME_CONVERT(x) (x) 74 #endif 75 76 #define yaffs_SumCompare(x,y) ((x) == (y)) 77 #define yaffs_strcmp(a,b) strcmp(a,b) 78 79 #define TENDSTR "\n" 80 #define TSTR(x) KERN_WARNING x 81 #define TOUT(p) printk p 82 83 #define yaffs_trace(mask, fmt, args...) \ 84 do { if ((mask) & (yaffs_traceMask|YAFFS_TRACE_ERROR)) \ 85 printk(KERN_WARNING "yaffs: " fmt, ## args); \ 86 } while (0) 87 88 #define compile_time_assertion(assertion) \ 89 ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; }) 90 91 #elif defined CONFIG_YAFFS_DIRECT 92 93 /* Direct interface */ 94 #include "ydirectenv.h" 95 96 #elif defined CONFIG_YAFFS_UTIL 97 98 /* Stuff for YAFFS utilities */ 99 100 #include "stdlib.h" 101 #include "stdio.h" 102 #include "string.h" 103 104 #include "devextras.h" 105 106 #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) 110 111 #define YCHAR char 112 #define YUCHAR unsigned char 113 #define _Y(x) x 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) 119 120 #define Y_INLINE inline 121 122 /* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */ 123 /* #define YALERT(s) YINFO(s) */ 124 125 #define TENDSTR "\n" 126 #define TSTR(x) x 127 #define TOUT(p) printf p 128 129 #define YAFFS_LOSTNFOUND_NAME "lost+found" 130 #define YAFFS_LOSTNFOUND_PREFIX "obj" 131 /* #define YPRINTF(x) printf x */ 132 133 #define YAFFS_ROOT_MODE 0666 134 #define YAFFS_LOSTNFOUND_MODE 0666 135 136 #define yaffs_SumCompare(x,y) ((x) == (y)) 137 #define yaffs_strcmp(a,b) strcmp(a,b) 138 139 #else 140 /* Should have specified a configuration type */ 141 #error Unknown configuration 142 143 #endif 144 145 /* see yaffs_fs.c */ 146 extern unsigned int yaffs_traceMask; 147 extern unsigned int yaffs_wr_attempts; 148 149 /* 150 * Tracing flags. 151 * The flags masked in YAFFS_TRACE_ALWAYS are always traced. 152 */ 153 154 #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 169 170 #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 174 175 176 #define YAFFS_TRACE_ERROR 0x40000000 177 #define YAFFS_TRACE_BUG 0x80000000 178 #define YAFFS_TRACE_ALWAYS 0xF0000000 179 180 181 #define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p);} while(0) 182 183 #ifndef CONFIG_YAFFS_WINCE 184 #define YBUG() T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__)) 185 #endif 186 187 #endif 188