]>
git.ipfire.org Git - thirdparty/pciutils.git/blob - ls-vpd.c
2 * The PCI Utilities -- Show Vital Product Data
4 * Copyright (c) 2008 Solarflare Communications
6 * Written by Ben Hutchings <bhutchings@solarflare.com>
7 * Improved by Martin Mares <mj@ucw.cz>
9 * Can be freely distributed and used under the terms of the GNU GPL.
17 * The list of all known VPD items and their formats.
18 * Technically, this belongs to the pci.ids file, but the VPD does not seem
19 * to be developed any longer, so we have chosen the easier way.
29 static const struct vpd_item
{
34 { 'C','P', F_BINARY
, "Extended capability" },
35 { 'E','C', F_TEXT
, "Engineering changes" },
36 { 'M','N', F_BINARY
, "Manufacture ID" },
37 { 'P','N', F_TEXT
, "Part number" },
38 { 'R','V', F_RESVD
, "Reserved" },
39 { 'R','W', F_RDWR
, "Read-write area" },
40 { 'S','N', F_TEXT
, "Serial number" },
41 { 'Y','A', F_TEXT
, "Asset tag" },
42 { 'V', 0 , F_TEXT
, "Vendor specific" },
43 { 'Y', 0 , F_TEXT
, "System specific" },
44 { 0, 0 , F_BINARY
, "Unknown" }
48 print_vpd_string(const byte
*buf
, word len
)
56 ; /* Cards with null-terminated strings have been observed */
57 else if (ch
< 32 || ch
== 127)
58 printf("\\x%02x", ch
);
65 print_vpd_binary(const byte
*buf
, word len
)
68 for (i
= 0; i
< len
; i
++)
72 printf("%02x", buf
[i
]);
77 read_vpd(struct device
*d
, int pos
, byte
*buf
, int len
, byte
*csum
)
79 if (!pci_read_vpd(d
->dev
, pos
, buf
, len
))
87 cap_vpd(struct device
*d
)
89 word res_addr
= 0, res_len
, part_pos
, part_len
;
94 printf("Vital Product Data\n");
98 while (res_addr
<= PCI_VPD_ADDR_MASK
)
100 if (!read_vpd(d
, res_addr
, &tag
, 1, &csum
))
104 if (res_addr
> PCI_VPD_ADDR_MASK
+ 1 - 3)
106 if (!read_vpd(d
, res_addr
+ 1, buf
, 2, &csum
))
108 res_len
= buf
[0] + (buf
[1] << 8);
117 if (res_len
> PCI_VPD_ADDR_MASK
+ 1 - res_addr
)
129 printf("\t\tProduct Name: ");
130 while (part_pos
< res_len
)
132 part_len
= res_len
- part_pos
;
133 if (part_len
> sizeof(buf
))
134 part_len
= sizeof(buf
);
135 if (!read_vpd(d
, res_addr
+ part_pos
, buf
, part_len
, &csum
))
137 print_vpd_string(buf
, part_len
);
138 part_pos
+= part_len
;
145 printf("\t\t%s fields:\n",
146 (tag
== 0x90) ? "Read-only" : "Read/write");
148 while (part_pos
+ 3 <= res_len
)
151 const struct vpd_item
*item
;
154 if (!read_vpd(d
, res_addr
+ part_pos
, buf
, 3, &csum
))
160 if (part_len
> res_len
- part_pos
)
163 /* Is this item known? */
164 for (item
=vpd_items
; item
->id1
&& item
->id1
!= id1
||
165 item
->id2
&& item
->id2
!= id2
; item
++)
168 /* Only read the first byte of the RV field because the
169 * remaining bytes are not included in the checksum. */
170 read_len
= (item
->format
== F_RESVD
) ? 1 : part_len
;
171 if (!read_vpd(d
, res_addr
+ part_pos
, buf
, read_len
, &csum
))
174 printf("\t\t\t[%c%c] %s: ", id1
, id2
, item
->name
);
176 switch (item
->format
)
179 print_vpd_string(buf
, part_len
);
183 print_vpd_binary(buf
, part_len
);
187 printf("checksum %s, %d byte(s) reserved\n", csum
? "bad" : "good", part_len
- 1);
190 printf("%d byte(s) free\n", part_len
);
194 part_pos
+= part_len
;
199 printf("\t\tUnknown %s resource type %02x, will not decode more.\n",
200 (tag
& 0x80) ? "large" : "small", tag
& ~0x80);
208 printf("\t\tNot readable\n");
210 printf("\t\tNo end tag found\n");