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1 | /* |
2 | * Copyright (C) 2012 CERN (www.cern.ch) | |
3 | * Author: Alessandro Rubini <rubini@gnudd.com> | |
4 | * | |
5 | * Released according to the GNU GPL, version 2 or any later version. | |
6 | * | |
7 | * This work is part of the White Rabbit project, a research effort led | |
8 | * by CERN, the European Institute for Nuclear Research. | |
9 | */ | |
10 | #include <linux/ipmi-fru.h> | |
11 | ||
12 | /* Some internal helpers */ | |
13 | static struct fru_type_length * | |
14 | __fru_get_board_tl(struct fru_common_header *header, int nr) | |
15 | { | |
16 | struct fru_board_info_area *bia; | |
17 | struct fru_type_length *tl; | |
18 | ||
19 | bia = fru_get_board_area(header); | |
20 | tl = bia->tl; | |
21 | while (nr > 0 && !fru_is_eof(tl)) { | |
22 | tl = fru_next_tl(tl); | |
23 | nr--; | |
24 | } | |
25 | if (fru_is_eof(tl)) | |
26 | return NULL; | |
27 | return tl; | |
28 | } | |
29 | ||
30 | static char *__fru_alloc_get_tl(struct fru_common_header *header, int nr) | |
31 | { | |
32 | struct fru_type_length *tl; | |
33 | char *res; | |
77864f2e AR |
34 | |
35 | tl = __fru_get_board_tl(header, nr); | |
36 | if (!tl) | |
37 | return NULL; | |
8e12381b | 38 | |
77864f2e AR |
39 | res = fru_alloc(fru_strlen(tl) + 1); |
40 | if (!res) | |
41 | return NULL; | |
42 | return fru_strcpy(res, tl); | |
43 | } | |
44 | ||
45 | /* Public checksum verifiers */ | |
46 | int fru_header_cksum_ok(struct fru_common_header *header) | |
47 | { | |
48 | uint8_t *ptr = (void *)header; | |
49 | int i, sum; | |
50 | ||
51 | for (i = sum = 0; i < sizeof(*header); i++) | |
52 | sum += ptr[i]; | |
53 | return (sum & 0xff) == 0; | |
54 | } | |
55 | int fru_bia_cksum_ok(struct fru_board_info_area *bia) | |
56 | { | |
57 | uint8_t *ptr = (void *)bia; | |
58 | int i, sum; | |
59 | ||
60 | for (i = sum = 0; i < 8 * bia->area_len; i++) | |
61 | sum += ptr[i]; | |
62 | return (sum & 0xff) == 0; | |
63 | } | |
64 | ||
65 | /* Get various stuff, trivial */ | |
66 | char *fru_get_board_manufacturer(struct fru_common_header *header) | |
67 | { | |
68 | return __fru_alloc_get_tl(header, 0); | |
69 | } | |
70 | char *fru_get_product_name(struct fru_common_header *header) | |
71 | { | |
72 | return __fru_alloc_get_tl(header, 1); | |
73 | } | |
74 | char *fru_get_serial_number(struct fru_common_header *header) | |
75 | { | |
76 | return __fru_alloc_get_tl(header, 2); | |
77 | } | |
78 | char *fru_get_part_number(struct fru_common_header *header) | |
79 | { | |
80 | return __fru_alloc_get_tl(header, 3); | |
81 | } |