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
21#include "volume_id_internal.h"
22
23struct silicon_meta {
24	uint8_t		unknown0[0x2E];
25	uint8_t		ascii_version[0x36 - 0x2E];
26	uint8_t		diskname[0x56 - 0x36];
27	uint8_t		unknown1[0x60 - 0x56];
28	uint32_t	magic;
29	uint32_t	unknown1a[0x6C - 0x64];
30	uint32_t	array_sectors_low;
31	uint32_t	array_sectors_high;
32	uint8_t		unknown2[0x78 - 0x74];
33	uint32_t	thisdisk_sectors;
34	uint8_t		unknown3[0x100 - 0x7C];
35	uint8_t		unknown4[0x104 - 0x100];
36	uint16_t	product_id;
37	uint16_t	vendor_id;
38	uint16_t	minor_ver;
39	uint16_t	major_ver;
40} PACKED;
41
42#define SILICON_MAGIC		0x2F000000
43
44int FAST_FUNC volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size)
45{
46	uint64_t meta_off;
47	struct silicon_meta *sil;
48
49	dbg("probing at offset 0x%llx, size 0x%llx",
50	    (unsigned long long) off, (unsigned long long) size);
51
52	if (size < 0x10000)
53		return -1;
54
55	meta_off = ((size / 0x200)-1) * 0x200;
56	sil = volume_id_get_buffer(id, off + meta_off, 0x200);
57	if (sil == NULL)
58		return -1;
59
60	if (sil->magic != cpu_to_le32(SILICON_MAGIC))
61		return -1;
62
63//	volume_id_set_usage(id, VOLUME_ID_RAID);
64//	snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u",
65//		 le16_to_cpu(sil->major_ver), le16_to_cpu(sil->minor_ver));
66//	id->type = "silicon_medley_raid_member";
67
68	return 0;
69}
70