LXR busybox/util-linux/volume_id/unused_silicon

   1/*
   2 * volume_id - reads filesystem label and uuid
   3 *
   4 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
   5 *
   6 *      This library is free software; you can redistribute it and/or
   7 *      modify it under the terms of the GNU Lesser General Public
   8 *      License as published by the Free Software Foundation; either
   9 *      version 2.1 of the License, or (at your option) any later version.
  10 *
  11 *      This library is distributed in the hope that it will be useful,
  12 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14 *      Lesser General Public License for more details.
  15 *
  16 *      You should have received a copy of the GNU Lesser General Public
  17 *      License along with this library; if not, write to the Free Software
  18 *      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19 */
  20//config:### config FEATURE_VOLUMEID_SILICONRAID
  21//config:###    bool "silicon raid"
  22//config:###    default y
  23//config:###    depends on VOLUMEID
  24
  25//kbuild:### lib-$(CONFIG_FEATURE_VOLUMEID_SILICONRAID) += silicon_raid.o
  26
  27#include "volume_id_internal.h"
  28
  29struct silicon_meta {
  30        uint8_t         unknown0[0x2E];
  31        uint8_t         ascii_version[0x36 - 0x2E];
  32        uint8_t         diskname[0x56 - 0x36];
  33        uint8_t         unknown1[0x60 - 0x56];
  34        uint32_t        magic;
  35        uint32_t        unknown1a[0x6C - 0x64];
  36        uint32_t        array_sectors_low;
  37        uint32_t        array_sectors_high;
  38        uint8_t         unknown2[0x78 - 0x74];
  39        uint32_t        thisdisk_sectors;
  40        uint8_t         unknown3[0x100 - 0x7C];
  41        uint8_t         unknown4[0x104 - 0x100];
  42        uint16_t        product_id;
  43        uint16_t        vendor_id;
  44        uint16_t        minor_ver;
  45        uint16_t        major_ver;
  46} PACKED;
  47
  48#define SILICON_MAGIC           0x2F000000
  49
  50int FAST_FUNC volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size)
  51{
  52        uint64_t meta_off;
  53        struct silicon_meta *sil;
  54
  55        dbg("probing at offset 0x%llx, size 0x%llx",
  56            (unsigned long long) off, (unsigned long long) size);
  57
  58        if (size < 0x10000)
  59                return -1;
  60
  61        meta_off = ((size / 0x200)-1) * 0x200;
  62        sil = volume_id_get_buffer(id, off + meta_off, 0x200);
  63        if (sil == NULL)
  64                return -1;
  65
  66        if (sil->magic != cpu_to_le32(SILICON_MAGIC))
  67                return -1;
  68
  69//      volume_id_set_usage(id, VOLUME_ID_RAID);
  70//      snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u",
  71//              le16_to_cpu(sil->major_ver), le16_to_cpu(sil->minor_ver));
  72//      id->type = "silicon_medley_raid_member";
  73
  74        return 0;
  75}
  76