blob: 176d89bcf123e80030aced7e55aee23a3de79172 [file] [log] [blame]
Bob Copeland0e6e1db2006-01-16 22:14:20 -08001/*
2 * fs/partitions/karma.c
3 * Rio Karma partition info.
4 *
5 * Copyright (C) 2006 Bob Copeland (me@bobcopeland.com)
6 * based on osf.c
7 */
8
9#include "check.h"
10#include "karma.h"
11
12int karma_partition(struct parsed_partitions *state, struct block_device *bdev)
13{
14 int i;
15 int slot = 1;
16 Sector sect;
17 unsigned char *data;
18 struct disklabel {
19 u8 d_reserved[270];
20 struct d_partition {
21 __le32 p_res;
22 u8 p_fstype;
23 u8 p_res2[3];
24 __le32 p_offset;
25 __le32 p_size;
26 } d_partitions[2];
27 u8 d_blank[208];
28 __le16 d_magic;
29 } __attribute__((packed)) *label;
30 struct d_partition *p;
31
32 data = read_dev_sector(bdev, 0, &sect);
33 if (!data)
34 return -1;
35
36 label = (struct disklabel *)data;
37 if (le16_to_cpu(label->d_magic) != KARMA_LABEL_MAGIC) {
38 put_dev_sector(sect);
39 return 0;
40 }
41
42 p = label->d_partitions;
43 for (i = 0 ; i < 2; i++, p++) {
44 if (slot == state->limit)
45 break;
46
47 if (p->p_fstype == 0x4d && le32_to_cpu(p->p_size)) {
48 put_partition(state, slot, le32_to_cpu(p->p_offset),
49 le32_to_cpu(p->p_size));
50 }
51 slot++;
52 }
53 printk("\n");
54 put_dev_sector(sect);
55 return 1;
56}
57