release/src/router/busybox/util-linux/volume_id/unused_highpoint.c

   1 /*
   2  * volume_id - reads filesystem label and uuid
   3  *
   4  * Copyright (C) 2004 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
  21 //kbuild:### lib-$(CONFIG_FEATURE_VOLUMEID_HIGHPOINTRAID) += highpoint.o
  22
  23 //config:
  24 //config:### config FEATURE_VOLUMEID_HIGHPOINTRAID
  25 //config:###    bool "highpoint raid"
  26 //config:###    default y
  27 //config:###    depends on VOLUMEID
  28 //config:###    help
  29 //config:###      TODO
  30 //config:
  31
  32 #include "volume_id_internal.h"
  33
  34 struct hpt37x_meta {
  35         uint8_t         filler1[32];
  36         uint32_t        magic;
  37 } PACKED;
  38
  39 struct hpt45x_meta {
  40         uint32_t        magic;
  41 } PACKED;
  42
  43 #define HPT37X_CONFIG_OFF               0x1200
  44 #define HPT37X_MAGIC_OK                 0x5a7816f0
  45 #define HPT37X_MAGIC_BAD                0x5a7816fd
  46
  47 #define HPT45X_MAGIC_OK                 0x5a7816f3
  48 #define HPT45X_MAGIC_BAD                0x5a7816fd
  49
  50
  51 int FAST_FUNC volume_id_probe_highpoint_37x_raid(struct volume_id *id, uint64_t off)
  52 {
  53         struct hpt37x_meta *hpt;
  54         uint32_t magic;
  55
  56         dbg("probing at offset 0x%llx", (unsigned long long) off);
  57
  58         hpt = volume_id_get_buffer(id, off + HPT37X_CONFIG_OFF, 0x200);
  59         if (hpt == NULL)
  60                 return -1;
  61
  62         magic = hpt->magic;
  63         if (magic != cpu_to_le32(HPT37X_MAGIC_OK) && magic != cpu_to_le32(HPT37X_MAGIC_BAD))
  64                 return -1;
  65
  66 //      volume_id_set_usage(id, VOLUME_ID_RAID);
  67 //      id->type = "highpoint_raid_member";
  68
  69         return 0;
  70 }
  71
  72 int FAST_FUNC volume_id_probe_highpoint_45x_raid(struct volume_id *id, uint64_t off, uint64_t size)
  73 {
  74         struct hpt45x_meta *hpt;
  75         uint64_t meta_off;
  76         uint32_t magic;
  77
  78         dbg("probing at offset 0x%llx, size 0x%llx",
  79             (unsigned long long) off, (unsigned long long) size);
  80
  81         if (size < 0x10000)
  82                 return -1;
  83
  84         meta_off = ((size / 0x200)-11) * 0x200;
  85         hpt = volume_id_get_buffer(id, off + meta_off, 0x200);
  86         if (hpt == NULL)
  87                 return -1;
  88
  89         magic = hpt->magic;
  90         if (magic != cpu_to_le32(HPT45X_MAGIC_OK) && magic != cpu_to_le32(HPT45X_MAGIC_BAD))
  91                 return -1;
  92
  93 //      volume_id_set_usage(id, VOLUME_ID_RAID);
  94 //      id->type = "highpoint_raid_member";
  95
  96         return 0;
  97 }