1 /*
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 
karma_partition(struct parsed_partitions * state)12 int karma_partition(struct parsed_partitions *state)
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_part_sector(state, 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 	strlcat(state->pp_buf, "\n", PAGE_SIZE);
54 	put_dev_sector(sect);
55 	return 1;
56 }
57 
58