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unused_silicon_raid.c 2.3 KB

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  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. //kbuild:### lib-$(CONFIG_FEATURE_VOLUMEID_SILICONRAID) += silicon_raid.o
  25. #include "volume_id_internal.h"
  26. struct silicon_meta {
  27. uint8_t unknown0[0x2E];
  28. uint8_t ascii_version[0x36 - 0x2E];
  29. uint8_t diskname[0x56 - 0x36];
  30. uint8_t unknown1[0x60 - 0x56];
  31. uint32_t magic;
  32. uint32_t unknown1a[0x6C - 0x64];
  33. uint32_t array_sectors_low;
  34. uint32_t array_sectors_high;
  35. uint8_t unknown2[0x78 - 0x74];
  36. uint32_t thisdisk_sectors;
  37. uint8_t unknown3[0x100 - 0x7C];
  38. uint8_t unknown4[0x104 - 0x100];
  39. uint16_t product_id;
  40. uint16_t vendor_id;
  41. uint16_t minor_ver;
  42. uint16_t major_ver;
  43. } PACKED;
  44. #define SILICON_MAGIC 0x2F000000
  45. int FAST_FUNC volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size)
  46. {
  47. uint64_t meta_off;
  48. struct silicon_meta *sil;
  49. dbg("probing at offset 0x%llx, size 0x%llx",
  50. (unsigned long long) off, (unsigned long long) size);
  51. if (size < 0x10000)
  52. return -1;
  53. meta_off = ((size / 0x200)-1) * 0x200;
  54. sil = volume_id_get_buffer(id, off + meta_off, 0x200);
  55. if (sil == NULL)
  56. return -1;
  57. if (sil->magic != cpu_to_le32(SILICON_MAGIC))
  58. return -1;
  59. // volume_id_set_usage(id, VOLUME_ID_RAID);
  60. // snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u",
  61. // le16_to_cpu(sil->major_ver), le16_to_cpu(sil->minor_ver));
  62. // id->type = "silicon_medley_raid_member";
  63. return 0;
  64. }