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 *
__fru_get_board_tl(struct fru_common_header * header,int nr)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
__fru_alloc_get_tl(struct fru_common_header * header,int nr)30 static char *__fru_alloc_get_tl(struct fru_common_header *header, int nr)
31 {
32 struct fru_type_length *tl;
33 char *res;
34
35 tl = __fru_get_board_tl(header, nr);
36 if (!tl)
37 return NULL;
38
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 */
fru_header_cksum_ok(struct fru_common_header * header)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 }
fru_bia_cksum_ok(struct fru_board_info_area * bia)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 */
fru_get_board_manufacturer(struct fru_common_header * header)66 char *fru_get_board_manufacturer(struct fru_common_header *header)
67 {
68 return __fru_alloc_get_tl(header, 0);
69 }
fru_get_product_name(struct fru_common_header * header)70 char *fru_get_product_name(struct fru_common_header *header)
71 {
72 return __fru_alloc_get_tl(header, 1);
73 }
fru_get_serial_number(struct fru_common_header * header)74 char *fru_get_serial_number(struct fru_common_header *header)
75 {
76 return __fru_alloc_get_tl(header, 2);
77 }
fru_get_part_number(struct fru_common_header * header)78 char *fru_get_part_number(struct fru_common_header *header)
79 {
80 return __fru_alloc_get_tl(header, 3);
81 }
82
