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) 2002-2018 Aleph One Ltd.
   5  *
   6  * Created by Charles Manning <charles@aleph1.co.uk>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13
  14 #include "yaffs_nandsim_file.h"
  15 #include "yaffs_nand_drv.h"
  16 #include "nandsim_file.h"
  17 #include "nand_chip.h"
  18 #include "yaffs_guts.h"
  19 #include <stddef.h>
  20
  21
  22 struct yaffs_dev *yaffs_nandsim_install_drv(const char *dev_name,
  23                                         const char *backing_file_name,
  24                                         int n_blocks,
  25                                         int n_caches,
  26                                         int inband_tags)
  27 {
  28         struct yaffs_dev *dev;
  29         char *name_copy = NULL;
  30         struct yaffs_param *param;
  31         struct nand_chip *chip = NULL;
  32
  33
  34
  35         dev = malloc(sizeof(struct yaffs_dev));
  36         name_copy = strdup(dev_name);
  37
  38         if(!dev || !name_copy)
  39                 goto fail;
  40
  41         memset(dev, 0, sizeof(*dev));
  42         chip = nandsim_file_init(backing_file_name, n_blocks, 64, 2048, 64, 0);
  43         if(!chip)
  44                 goto fail;
  45
  46         param = &dev->param;
  47
  48         param->name = name_copy;
  49
  50         param->total_bytes_per_chunk = chip->data_bytes_per_page;
  51         param->chunks_per_block = chip->pages_per_block;
  52         param->n_reserved_blocks = 5;
  53         param->start_block = 0; // First block
  54         param->end_block = n_blocks - 1; // Last block
  55         param->is_yaffs2 = 1;
  56         param->use_nand_ecc = 1;
  57         param->n_caches = n_caches;
  58         param->stored_endian = 2;
  59         param->inband_tags = inband_tags;
  60
  61         if(yaffs_nand_install_drv(dev, chip) != YAFFS_OK)
  62                 goto fail;
  63
  64         /* The yaffs device has been configured, install it into yaffs */
  65         yaffs_add_device(dev);
  66
  67         return dev;
  68
  69 fail:
  70         free(dev);
  71         free(name_copy);
  72         return NULL;
  73 }