direct/test-framework/yaffs_nandsim_file.c

   1 /*
   2  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
   3  *
   4  * Copyright (C) 2002-2011 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 #include "yaffs_nandsim_file.h"
  16
  17 #include "nandsim_file.h"
  18 #include "nand_chip.h"
  19 #include "yaffs_guts.h"
  20 #include <stddef.h>
  21
  22
  23 struct yaffs_dev *yaffs_nandsim_install_drv(const char *dev_name,
  24                                         const char *backing_file_name,
  25                                         int n_blocks)
  26 {
  27         struct yaffs_dev *dev;
  28         char *name_copy = NULL;
  29         struct yaffs_param *param;
  30         struct nand_chip *chip = NULL;
  31
  32
  33
  34         dev = malloc(sizeof(struct yaffs_dev));
  35         name_copy = strdup(dev_name);
  36
  37         if(!dev || !name_copy)
  38                 goto fail;
  39
  40         memset(dev, 0, sizeof(*dev));
  41         chip = nandsim_file_init(backing_file_name, n_blocks, 64, 2048, 64, 0);
  42         if(!chip)
  43                 goto fail;
  44
  45         param = &dev->param;
  46
  47         param->name = name_copy;
  48
  49         param->total_bytes_per_chunk = chip->data_bytes_per_page;
  50         param->chunks_per_block = chip->pages_per_block;
  51         param->n_reserved_blocks = 5;
  52         param->start_block = 0; // First block
  53         param->end_block = n_blocks - 1; // Last block
  54         param->is_yaffs2 = 1;
  55         param->use_nand_ecc = 1;
  56         param->n_caches = 10;
  57         param->stored_endian = 2;
  58
  59         if(yaffs_nand_install_drv(dev, chip) != YAFFS_OK)
  60                 goto fail;
  61
  62         /* The yaffs device has been configured, install it into yaffs */
  63         yaffs_add_device(dev);
  64
  65         return dev;
  66
  67 fail:
  68         free(dev);
  69         free(name_copy);
  70         return NULL;
  71 }