src/udev/mtd_probe/mtd_probe.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 #pragma once
   3
   4 /*
   5  * Copyright (C) 2010 - Maxim Levitsky
   6  *
   7  * mtd_probe is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * mtd_probe is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with mtd_probe; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor,
  20  * Boston, MA  02110-1301  USA
  21  */
  22
  23 #include <mtd/mtd-user.h>
  24
  25 #include "macro.h"
  26
  27 /* Full oob structure as written on the flash */
  28 struct sm_oob {
  29         uint32_t reserved;
  30         uint8_t data_status;
  31         uint8_t block_status;
  32         uint8_t lba_copy1[2];
  33         uint8_t ecc2[3];
  34         uint8_t lba_copy2[2];
  35         uint8_t ecc1[3];
  36 } _packed_;
  37
  38 /* one sector is always 512 bytes, but it can consist of two nand pages */
  39 #define SM_SECTOR_SIZE                512
  40
  41 /* oob area is also 16 bytes, but might be from two pages */
  42 #define SM_OOB_SIZE                16
  43
  44 /* This is maximum zone size, and all devices that have more that one zone
  45    have this size */
  46 #define SM_MAX_ZONE_SIZE         1024
  47
  48 /* support for small page nand */
  49 #define SM_SMALL_PAGE                 256
  50 #define SM_SMALL_OOB_SIZE        8
  51
  52 void probe_smart_media(int mtd_fd, mtd_info_t *info);