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 {
  26         struct yaffs_dev *dev;
  27         char *name_copy = NULL;
  28         struct yaffs_param *param;
  29         struct nand_chip *chip = NULL;
  30
  31
  32
  33         dev = malloc(sizeof(struct yaffs_dev));
  34         name_copy = strdup(dev_name);
  35
  36         if(!dev || !name_copy)
  37                 goto fail;
  38
  39         memset(dev, 0, sizeof(*dev));
  40         chip = nandsim_file_init(backing_file_name, n_blocks, 64, 2048, 64, 0);
  41         if(!chip)
  42                 goto fail;
  43
  44         param = &dev->param;
  45
  46         param->name = name_copy;
  47
  48         param->total_bytes_per_chunk = chip->data_bytes_per_page;
  49         param->chunks_per_block = chip->pages_per_block;
  50         param->n_reserved_blocks = 5;
  51         param->start_block = 0; // First block
  52         param->end_block = n_blocks - 1; // Last block
  53         param->is_yaffs2 = 1;
  54         param->use_nand_ecc = 1;
  55         param->n_caches = 10;
  56         param->stored_endian = 2;
  57
  58         if(yaffs_nand_install_drv(dev, chip) != YAFFS_OK)
  59                 goto fail;
  60
  61         /* The yaffs device has been configured, install it into yaffs */
  62         yaffs_add_device(dev);
  63
  64         return dev;
  65
  66 fail:
  67         free(dev);
  68         free(name_copy);
  69         return NULL;
  70 }