fs/yaffs2/yaffs_uboot_glue.c

   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 General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 /*
  15  * yaffscfg.c  The configuration for the "direct" use of yaffs.
  16  *
  17  * This is set up for u-boot.
  18  *
  19  * This version now uses the ydevconfig mechanism to set up partitions.
  20  */
  21
  22 #include <common.h>
  23 #include <div64.h>
  24
  25 #include <config.h>
  26 #include "nand.h"
  27 #include "yaffscfg.h"
  28 #include "yaffsfs.h"
  29 #include "yaffs_packedtags2.h"
  30 #include "yaffs_mtdif.h"
  31 #include "yaffs_mtdif2.h"
  32 #if 0
  33 #include <errno.h>
  34 #else
  35 #include "malloc.h"
  36 #endif
  37
  38 unsigned yaffs_trace_mask = 0x0; /* Disable logging */
  39 static int yaffs_errno;
  40
  41
  42 void yaffs_bug_fn(const char *fn, int n)
  43 {
  44         printf("yaffs bug at %s:%d\n", fn, n);
  45 }
  46
  47 void *yaffsfs_malloc(size_t x)
  48 {
  49         return malloc(x);
  50 }
  51
  52 void yaffsfs_free(void *x)
  53 {
  54         free(x);
  55 }
  56
  57 void yaffsfs_SetError(int err)
  58 {
  59         yaffs_errno = err;
  60 }
  61
  62 int yaffsfs_GetLastError(void)
  63 {
  64         return yaffs_errno;
  65 }
  66
  67
  68 int yaffsfs_GetError(void)
  69 {
  70         return yaffs_errno;
  71 }
  72
  73 void yaffsfs_Lock(void)
  74 {
  75 }
  76
  77 void yaffsfs_Unlock(void)
  78 {
  79 }
  80
  81 __u32 yaffsfs_CurrentTime(void)
  82 {
  83         return 0;
  84 }
  85
  86 void *yaffs_malloc(size_t size)
  87 {
  88         return malloc(size);
  89 }
  90
  91 void yaffs_free(void *ptr)
  92 {
  93         free(ptr);
  94 }
  95
  96 void yaffsfs_LocalInitialisation(void)
  97 {
  98         /* No locking used */
  99 }
 100
 101
 102 static const char *yaffs_file_type_str(struct yaffs_stat *stat)
 103 {
 104         switch (stat->st_mode & S_IFMT) {
 105         case S_IFREG: return "regular file";
 106         case S_IFDIR: return "directory";
 107         case S_IFLNK: return "symlink";
 108         default: return "unknown";
 109         }
 110 }
 111
 112 static const char *yaffs_error_str(void)
 113 {
 114         int error = yaffsfs_GetLastError();
 115
 116         if (error < 0)
 117                 error = -error;
 118
 119         switch (error) {
 120         case EBUSY: return "Busy";
 121         case ENODEV: return "No such device";
 122         case EINVAL: return "Invalid parameter";
 123         case ENFILE: return "Too many open files";
 124         case EBADF:  return "Bad handle";
 125         case EACCES: return "Wrong permissions";
 126         case EXDEV:  return "Not on same device";
 127         case ENOENT: return "No such entry";
 128         case ENOSPC: return "Device full";
 129         case EROFS:  return "Read only file system";
 130         case ERANGE: return "Range error";
 131         case ENOTEMPTY: return "Not empty";
 132         case ENAMETOOLONG: return "Name too long";
 133         case ENOMEM: return "Out of memory";
 134         case EFAULT: return "Fault";
 135         case EEXIST: return "Name exists";
 136         case ENOTDIR: return "Not a directory";
 137         case EISDIR: return "Not permitted on a directory";
 138         case ELOOP:  return "Symlink loop";
 139         case 0: return "No error";
 140         default: return "Unknown error";
 141         }
 142 }
 143
 144 extern nand_info_t nand_info[];
 145
 146 void cmd_yaffs_tracemask(unsigned set, unsigned mask)
 147 {
 148         if (set)
 149                 yaffs_trace_mask = mask;
 150
 151         printf("yaffs trace mask: %08x\n", yaffs_trace_mask);
 152 }
 153
 154 static int yaffs_regions_overlap(int a, int b, int x, int y)
 155 {
 156         return  (a <= x && x <= b) ||
 157                 (a <= y && y <= b) ||
 158                 (x <= a && a <= y) ||
 159                 (x <= b && b <= y);
 160 }
 161
 162 void cmd_yaffs_devconfig(char *_mp, int flash_dev,
 163                         int start_block, int end_block)
 164 {
 165         struct mtd_info *mtd = NULL;
 166         struct yaffs_dev *dev = NULL;
 167         struct yaffs_dev *chk;
 168         char *mp = NULL;
 169         struct nand_chip *chip;
 170
 171         dev = calloc(1, sizeof(*dev));
 172         mp = strdup(_mp);
 173
 174         mtd = &nand_info[flash_dev];
 175
 176         if (!dev || !mp) {
 177                 /* Alloc error */
 178                 printf("Failed to allocate memory\n");
 179                 goto err;
 180         }
 181
 182         if (flash_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
 183                 printf("Flash device invalid\n");
 184                 goto err;
 185         }
 186
 187         if (end_block == 0)
 188                 end_block = lldiv(mtd->size, mtd->erasesize - 1);
 189
 190         if (end_block < start_block) {
 191                 printf("Bad start/end\n");
 192                 goto err;
 193         }
 194
 195         chip =  mtd->priv;
 196
 197         /* Check for any conflicts */
 198         yaffs_dev_rewind();
 199         while (1) {
 200                 chk = yaffs_next_dev();
 201                 if (!chk)
 202                         break;
 203                 if (strcmp(chk->param.name, mp) == 0) {
 204                         printf("Mount point name already used\n");
 205                         goto err;
 206                 }
 207                 if (chk->driver_context == mtd &&
 208                         yaffs_regions_overlap(
 209                                 chk->param.start_block, chk->param.end_block,
 210                                 start_block, end_block)) {
 211                         printf("Region overlaps with partition %s\n",
 212                                 chk->param.name);
 213                         goto err;
 214                 }
 215
 216         }
 217
 218         /* Seems sane, so configure */
 219         memset(dev, 0, sizeof(*dev));
 220         dev->param.name = mp;
 221         dev->driver_context = mtd;
 222         dev->param.start_block = start_block;
 223         dev->param.end_block = end_block;
 224         dev->param.chunks_per_block = mtd->erasesize / mtd->writesize;
 225         dev->param.total_bytes_per_chunk = mtd->writesize;
 226         dev->param.is_yaffs2 = 1;
 227         dev->param.use_nand_ecc = 1;
 228         dev->param.n_reserved_blocks = 5;
 229         if (chip->ecc.layout->oobavail < sizeof(struct yaffs_packed_tags2))
 230                 dev->param.inband_tags = 1;
 231         dev->param.n_caches = 10;
 232         dev->param.write_chunk_tags_fn = nandmtd2_write_chunk_tags;
 233         dev->param.read_chunk_tags_fn = nandmtd2_read_chunk_tags;
 234         dev->param.erase_fn = nandmtd_EraseBlockInNAND;
 235         dev->param.initialise_flash_fn = nandmtd_InitialiseNAND;
 236         dev->param.bad_block_fn = nandmtd2_MarkNANDBlockBad;
 237         dev->param.query_block_fn = nandmtd2_QueryNANDBlock;
 238
 239         yaffs_add_device(dev);
 240
 241         printf("Configures yaffs mount %s: dev %d start block %d, end block %d %s\n",
 242                 mp, flash_dev, start_block, end_block,
 243                 dev->param.inband_tags ? "using inband tags" : "");
 244         return;
 245
 246 err:
 247         free(dev);
 248         free(mp);
 249 }
 250
 251 void cmd_yaffs_dev_ls(void)
 252 {
 253         struct yaffs_dev *dev;
 254         int flash_dev;
 255         int free_space;
 256
 257         yaffs_dev_rewind();
 258
 259         while (1) {
 260                 dev = yaffs_next_dev();
 261                 if (!dev)
 262                         return;
 263                 flash_dev =
 264                         ((unsigned) dev->driver_context - (unsigned) nand_info)/
 265                                 sizeof(nand_info[0]);
 266                 printf("%-10s %5d 0x%05x 0x%05x %s",
 267                         dev->param.name, flash_dev,
 268                         dev->param.start_block, dev->param.end_block,
 269                         dev->param.inband_tags ? "using inband tags, " : "");
 270
 271                 free_space = yaffs_freespace(dev->param.name);
 272                 if (free_space < 0)
 273                         printf("not mounted\n");
 274                 else
 275                         printf("free 0x%x\n", free_space);
 276
 277         }
 278 }
 279
 280 void make_a_file(char *yaffsName, char bval, int sizeOfFile)
 281 {
 282         int outh;
 283         int i;
 284         unsigned char buffer[100];
 285
 286         outh = yaffs_open(yaffsName,
 287                                 O_CREAT | O_RDWR | O_TRUNC,
 288                                 S_IREAD | S_IWRITE);
 289         if (outh < 0) {
 290                 printf("Error opening file: %d. %s\n", outh, yaffs_error_str());
 291                 return;
 292         }
 293
 294         memset(buffer, bval, 100);
 295
 296         do {
 297                 i = sizeOfFile;
 298                 if (i > 100)
 299                         i = 100;
 300                 sizeOfFile -= i;
 301
 302                 yaffs_write(outh, buffer, i);
 303
 304         } while (sizeOfFile > 0);
 305
 306
 307         yaffs_close(outh);
 308 }
 309
 310 void read_a_file(char *fn)
 311 {
 312         int h;
 313         int i = 0;
 314         unsigned char b;
 315
 316         h = yaffs_open(fn, O_RDWR, 0);
 317         if (h < 0) {
 318                 printf("File not found\n");
 319                 return;
 320         }
 321
 322         while (yaffs_read(h, &b, 1) > 0) {
 323                 printf("%02x ", b);
 324                 i++;
 325                 if (i > 32) {
 326                         printf("\n");
 327                         i = 0;;
 328                 }
 329         }
 330         printf("\n");
 331         yaffs_close(h);
 332 }
 333
 334 void cmd_yaffs_mount(char *mp)
 335 {
 336         int retval = yaffs_mount(mp);
 337         if (retval < 0)
 338                 printf("Error mounting %s, return value: %d, %s\n", mp,
 339                         yaffsfs_GetError(), yaffs_error_str());
 340 }
 341
 342
 343 void cmd_yaffs_umount(char *mp)
 344 {
 345         if (yaffs_unmount(mp) == -1)
 346                 printf("Error umounting %s, return value: %d, %s\n", mp,
 347                         yaffsfs_GetError(), yaffs_error_str());
 348 }
 349
 350 void cmd_yaffs_write_file(char *yaffsName, char bval, int sizeOfFile)
 351 {
 352         make_a_file(yaffsName, bval, sizeOfFile);
 353 }
 354
 355
 356 void cmd_yaffs_read_file(char *fn)
 357 {
 358         read_a_file(fn);
 359 }
 360
 361
 362 void cmd_yaffs_mread_file(char *fn, char *addr)
 363 {
 364         int h;
 365         struct yaffs_stat s;
 366
 367         yaffs_stat(fn, &s);
 368
 369         printf("Copy %s to 0x%p... ", fn, addr);
 370         h = yaffs_open(fn, O_RDWR, 0);
 371         if (h < 0) {
 372                 printf("File not found\n");
 373                 return;
 374         }
 375
 376         yaffs_read(h, addr, (int)s.st_size);
 377         printf("\t[DONE]\n");
 378
 379         yaffs_close(h);
 380 }
 381
 382
 383 void cmd_yaffs_mwrite_file(char *fn, char *addr, int size)
 384 {
 385         int outh;
 386
 387         outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
 388         if (outh < 0)
 389                 printf("Error opening file: %d, %s\n", outh, yaffs_error_str());
 390
 391         yaffs_write(outh, addr, size);
 392
 393         yaffs_close(outh);
 394 }
 395
 396
 397 void cmd_yaffs_ls(const char *mountpt, int longlist)
 398 {
 399         int i;
 400         yaffs_DIR *d;
 401         struct yaffs_dirent *de;
 402         struct yaffs_stat stat;
 403         char tempstr[255];
 404
 405         d = yaffs_opendir(mountpt);
 406
 407         if (!d) {
 408                 printf("opendir failed, %s\n", yaffs_error_str());
 409                 return;
 410         }
 411
 412         for (i = 0; (de = yaffs_readdir(d)) != NULL; i++) {
 413                 if (longlist) {
 414                         sprintf(tempstr, "%s/%s", mountpt, de->d_name);
 415                         yaffs_lstat(tempstr, &stat);
 416                         printf("%-25s\t%7ld",
 417                                         de->d_name,
 418                                         (long)stat.st_size);
 419                         printf(" %5d %s\n",
 420                                         stat.st_ino,
 421                                         yaffs_file_type_str(&stat));
 422                 } else {
 423                         printf("%s\n", de->d_name);
 424                 }
 425         }
 426
 427         yaffs_closedir(d);
 428 }
 429
 430
 431 void cmd_yaffs_mkdir(const char *dir)
 432 {
 433         int retval = yaffs_mkdir(dir, 0);
 434
 435         if (retval < 0)
 436                 printf("yaffs_mkdir returning error: %d, %s\n",
 437                         retval, yaffs_error_str());
 438 }
 439
 440 void cmd_yaffs_rmdir(const char *dir)
 441 {
 442         int retval = yaffs_rmdir(dir);
 443
 444         if (retval < 0)
 445                 printf("yaffs_rmdir returning error: %d, %s\n",
 446                         retval, yaffs_error_str());
 447 }
 448
 449 void cmd_yaffs_rm(const char *path)
 450 {
 451         int retval = yaffs_unlink(path);
 452
 453         if (retval < 0)
 454                 printf("yaffs_unlink returning error: %d, %s\n",
 455                         retval, yaffs_error_str());
 456 }
 457
 458 void cmd_yaffs_mv(const char *oldPath, const char *newPath)
 459 {
 460         int retval = yaffs_rename(newPath, oldPath);
 461
 462         if (retval < 0)
 463                 printf("yaffs_unlink returning error: %d, %s\n",
 464                         retval, yaffs_error_str());
 465 }