Blame dmioem.c

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/*
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 * Decoding of OEM-specific entries
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 * This file is part of the dmidecode project.
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 *
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 *   Copyright (C) 2007-2008 Jean Delvare <jdelvare@suse.de>
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 *
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 *   This program is free software; you can redistribute it and/or modify
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 *   it under the terms of the GNU General Public License as published by
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 *   the Free Software Foundation; either version 2 of the License, or
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 *   (at your option) any later version.
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 *
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 *   This program is distributed in the hope that it will be useful,
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 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *   GNU General Public License for more details.
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 *
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 *   You should have received a copy of the GNU General Public License
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 *   along with this program; if not, write to the Free Software
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 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
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 */
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#include <stdio.h>
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#include <string.h>
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#include "types.h"
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#include "dmidecode.h"
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#include "dmioem.h"
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/*
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 * Globals for vendor-specific decodes
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 */
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enum DMI_VENDORS
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{
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	VENDOR_UNKNOWN,
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	VENDOR_ACER,
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	VENDOR_HP,
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	VENDOR_HPE,
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	VENDOR_IBM,
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	VENDOR_LENOVO,
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};
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static enum DMI_VENDORS dmi_vendor = VENDOR_UNKNOWN;
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/*
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 * Remember the system vendor for later use. We only actually store the
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 * value if we know how to decode at least one specific entry type for
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 * that vendor.
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 */
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void dmi_set_vendor(const char *s)
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{
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	int len;
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	/*
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	 * Often DMI strings have trailing spaces. Ignore these
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	 * when checking for known vendor names.
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	 */
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	len = strlen(s);
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	while (len && s[len - 1] == ' ')
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		len--;
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	if (strncmp(s, "Acer", len) == 0)
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		dmi_vendor = VENDOR_ACER;
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	else if (strncmp(s, "HP", len) == 0 || strncmp(s, "Hewlett-Packard", len) == 0)
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		dmi_vendor = VENDOR_HP;
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	else if (strncmp(s, "HPE", len) == 0 || strncmp(s, "Hewlett Packard Enterprise", len) == 0)
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		dmi_vendor = VENDOR_HPE;
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	else if (strncmp(s, "IBM", len) == 0)
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		dmi_vendor = VENDOR_IBM;
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	else if (strncmp(s, "LENOVO", len) == 0)
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		dmi_vendor = VENDOR_LENOVO;
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}
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/*
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 * Acer-specific data structures are decoded here.
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 */
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static int dmi_decode_acer(const struct dmi_header *h)
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{
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	u8 *data = h->data;
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	u16 cap;
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	switch (h->type)
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	{
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		case 170:
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			/*
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			 * Vendor Specific: Acer Hotkey Function
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			 *
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			 * Source: acer-wmi kernel driver
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			 *
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			 * Probably applies to some laptop models of other
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			 * brands, including Fujitsu-Siemens, Medion, Lenovo,
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			 * and eMachines.
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			 */
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			printf("Acer Hotkey Function\n");
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			if (h->length < 0x0F) break;
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			cap = WORD(data + 0x04);
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			printf("\tFunction bitmap for Communication Button: 0x%04hx\n", cap);
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			printf("\t\tWiFi: %s\n", cap & 0x0001 ? "Yes" : "No");
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			printf("\t\t3G: %s\n", cap & 0x0040 ? "Yes" : "No");
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			printf("\t\tWiMAX: %s\n", cap & 0x0080 ? "Yes" : "No");
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			printf("\t\tBluetooth: %s\n", cap & 0x0800 ? "Yes" : "No");
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			printf("\tFunction bitmap for Application Button: 0x%04hx\n", WORD(data + 0x06));
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			printf("\tFunction bitmap for Media Button: 0x%04hx\n", WORD(data + 0x08));
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			printf("\tFunction bitmap for Display Button: 0x%04hx\n", WORD(data + 0x0A));
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			printf("\tFunction bitmap for Others Button: 0x%04hx\n", WORD(data + 0x0C));
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			printf("\tCommunication Function Key Number: %d\n", data[0x0E]);
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			break;
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		default:
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			return 0;
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	}
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	return 1;
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}
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/*
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 * HPE-specific data structures are decoded here.
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 *
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 * Code contributed by John Cagle and Tyler Bell.
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 */
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static void dmi_print_hp_net_iface_rec(u8 id, u8 bus, u8 dev, const u8 *mac)
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{
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	/* Some systems do not provide an id. nic_ctr provides an artificial
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	 * id, and assumes the records will be provided "in order".  Also,
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	 * using 0xFF marker is not future proof. 256 NICs is a lot, but
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	 * 640K ought to be enough for anybody(said no one, ever).
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	 * */
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	static u8 nic_ctr;
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	if (id == 0xFF)
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		id = ++nic_ctr;
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	if (dev == 0x00 && bus == 0x00)
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		printf("\tNIC %d: Disabled\n", id);
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	else if (dev == 0xFF && bus == 0xFF)
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		printf("\tNIC %d: Not Installed\n", id);
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	else
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	{
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		printf("\tNIC %d: PCI device %02x:%02x.%x, "
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			"MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
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			id, bus, dev >> 3, dev & 7,
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			mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
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	}
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}
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static int dmi_decode_hp(const struct dmi_header *h)
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{
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	u8 *data = h->data;
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	int nic, ptr;
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	u32 feat;
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	const char *company = (dmi_vendor == VENDOR_HP) ? "HP" : "HPE";
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	switch (h->type)
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	{
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		case 204:
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			/*
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			 * Vendor Specific: HPE ProLiant System/Rack Locator
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			 */
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			printf("%s ProLiant System/Rack Locator\n", company);
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			if (h->length < 0x0B) break;
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			printf("\tRack Name: %s\n", dmi_string(h, data[0x04]));
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			printf("\tEnclosure Name: %s\n", dmi_string(h, data[0x05]));
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			printf("\tEnclosure Model: %s\n", dmi_string(h, data[0x06]));
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			printf("\tEnclosure Serial: %s\n", dmi_string(h, data[0x0A]));
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			printf("\tEnclosure Bays: %d\n", data[0x08]);
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			printf("\tServer Bay: %s\n", dmi_string(h, data[0x07]));
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			printf("\tBays Filled: %d\n", data[0x09]);
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			break;
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		case 209:
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		case 221:
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			/*
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			 * Vendor Specific: HPE ProLiant NIC MAC Information
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			 *
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			 * This prints the BIOS NIC number,
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			 * PCI bus/device/function, and MAC address
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			 *
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			 * Type 209:
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			 * Offset |  Name  | Width | Description
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			 * -------------------------------------
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			 *  0x00  |  Type  | BYTE  | 0xD1, MAC Info
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			 *  0x01  | Length | BYTE  | Length of structure
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			 *  0x02  | Handle | WORD  | Unique handle
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			 *  0x04  | Dev No | BYTE  | PCI Device/Function No
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			 *  0x05  | Bus No | BYTE  | PCI Bus
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			 *  0x06  |   MAC  | 6B    | MAC addr
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			 *  0x0C  | NIC #2 | 8B    | Repeat 0x04-0x0B
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			 *
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			 * Type 221: is deprecated in the latest docs
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			 */
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			printf("%s %s\n", company,
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				h->type == 221 ?
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					"BIOS iSCSI NIC PCI and MAC Information" :
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					"BIOS PXE NIC PCI and MAC Information");
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			nic = 1;
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			ptr = 4;
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			while (h->length >= ptr + 8)
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			{
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				dmi_print_hp_net_iface_rec(nic,
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							   data[ptr + 0x01],
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							   data[ptr],
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							   &data[ptr + 0x02]);
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				nic++;
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				ptr += 8;
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			}
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			break;
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		case 233:
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			/*
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			 * Vendor Specific: HPE ProLiant NIC MAC Information
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			 *
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			 * This prints the BIOS NIC number,
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			 * PCI bus/device/function, and MAC address
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			 *
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			 * Offset |  Name  | Width | Description
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			 * -------------------------------------
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			 *  0x00  |  Type  | BYTE  | 0xE9, NIC structure
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			 *  0x01  | Length | BYTE  | Length of structure
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			 *  0x02  | Handle | WORD  | Unique handle
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			 *  0x04  | Grp No | WORD  | 0 for single segment
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			 *  0x06  | Bus No | BYTE  | PCI Bus
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			 *  0x07  | Dev No | BYTE  | PCI Device/Function No
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			 *  0x08  |   MAC  | 32B   | MAC addr padded w/ 0s
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			 *  0x28  | Port No| BYTE  | Each NIC maps to a Port
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			 */
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			printf("%s BIOS PXE NIC PCI and MAC Information\n", company);
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			if (h->length < 0x0E) break;
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			/* If the record isn't long enough, we don't have an ID
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			 * use 0xFF to use the internal counter.
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			 * */
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			nic = h->length > 0x28 ? data[0x28] : 0xFF;
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			dmi_print_hp_net_iface_rec(nic, data[0x06], data[0x07],
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						   &data[0x08]);
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			break;
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		case 212:
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			/*
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			 * Vendor Specific: HPE 64-bit CRU Information
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			 *
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			 * Source: hpwdt kernel driver
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			 */
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			printf("%s 64-bit CRU Information\n", company);
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			if (h->length < 0x18) break;
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			printf("\tSignature: 0x%08x", DWORD(data + 0x04));
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			if (is_printable(data + 0x04, 4))
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				printf(" (%c%c%c%c)", data[0x04], data[0x05],
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					data[0x06], data[0x07]);
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			printf("\n");
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			if (DWORD(data + 0x04) == 0x55524324)
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			{
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				u64 paddr = QWORD(data + 0x08);
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				paddr.l += DWORD(data + 0x14);
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				if (paddr.l < DWORD(data + 0x14))
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					paddr.h++;
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				printf("\tPhysical Address: 0x%08x%08x\n",
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					paddr.h, paddr.l);
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				printf("\tLength: 0x%08x\n", DWORD(data + 0x10));
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			}
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			break;
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		case 219:
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			/*
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			 * Vendor Specific: HPE ProLiant Information
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			 *
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			 * Source: hpwdt kernel driver
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			 */
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			printf("%s ProLiant Information\n", company);
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			if (h->length < 0x08) break;
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			printf("\tPower Features: 0x%08x\n", DWORD(data + 0x04));
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			if (h->length < 0x0C) break;
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			printf("\tOmega Features: 0x%08x\n", DWORD(data + 0x08));
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			if (h->length < 0x14) break;
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			feat = DWORD(data + 0x10);
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			printf("\tMisc. Features: 0x%08x\n", feat);
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			printf("\t\tiCRU: %s\n", feat & 0x0001 ? "Yes" : "No");
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			printf("\t\tUEFI: %s\n", feat & 0x1400 ? "Yes" : "No");
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			break;
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		default:
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			return 0;
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	}
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	return 1;
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}
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static int dmi_decode_ibm_lenovo(const struct dmi_header *h)
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{
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	u8 *data = h->data;
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	switch (h->type)
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	{
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		case 131:
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			/*
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			 * Vendor Specific: ThinkVantage Technologies feature bits
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			 *
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			 * Source: Compal hel81 Service Manual Software Specification,
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			 *         documented under "System Management BIOS(SM BIOS)
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			 *         version 2.4 or greater"
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			 *
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			 * Offset |  Name         | Width   | Description
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			 * ----------------------------------------------
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			 *  0x00  | Type          | BYTE    | 0x83
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			 *  0x01  | Length        | BYTE    | 0x16
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			 *  0x02  | Handle        | WORD    | Varies
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			 *  0x04  | Version       | BYTE    | 0x01
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			 *  0x05  | TVT Structure | BYTEx16 | Each of the 128 bits represents a TVT feature:
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			 *        |               |         |  - bit 127 means diagnostics (PC Doctor) is available
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			 *        |               |         |    (http://www.pc-doctor.com/company/pr-articles/45-lenovo-introduces-thinkvantage-toolbox)
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			 *        |               |         |  - the rest (126-0) are reserved/unknown
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			 *
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			 * It must also be followed by a string containing
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			 * "TVT-Enablement". There exist other type 131 records
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			 * with different length and a different string, for
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			 * other purposes.
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			 */
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			if (h->length != 0x16
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			 || strcmp(dmi_string(h, 1), "TVT-Enablement") != 0)
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				return 0;
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			printf("ThinkVantage Technologies\n");
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			printf("\tVersion: %u\n", data[0x04]);
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			printf("\tDiagnostics: %s\n",
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				data[0x14] & 0x80 ? "Available" : "No");
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			break;
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		case 135:
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			/*
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			 * Vendor Specific: Device Presence Detection bits
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			 *
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			 * Source: Compal hel81 Service Manual Software Specification,
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			 *         documented as "SMBIOS Type 135: Bulk for Lenovo
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			 *         Mobile PC Unique OEM Data" under appendix D.
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			 *
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			 * Offset |  Name                | Width | Description
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			 * ---------------------------------------------------
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			 *  0x00  | Type                 | BYTE  | 0x87
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			 *  0x01  | Length               | BYTE  | 0x0A
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			 *  0x02  | Handle               | WORD  | Varies
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			 *  0x04  | Signature            | WORD  | 0x5054 (ASCII for "TP")
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			 *  0x06  | OEM struct offset    | BYTE  | 0x07
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			 *  0x07  | OEM struct number    | BYTE  | 0x03, for this structure
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			 *  0x08  | OEM struct revision  | BYTE  | 0x01, for this format
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			 *  0x09  | Device presence bits | BYTE  | Each of the 8 bits indicates device presence:
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			 *        |                      |       |  - bit 0 indicates the presence of a fingerprint reader
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			 *        |                      |       |  - the rest (7-1) are reserved/unknown
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			 *
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			 * Other OEM struct number+rev combinations have been
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			 * seen in the wild but we don't know how to decode
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			 * them.
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			 */
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			if (h->length < 0x0A || data[0x04] != 'T' || data[0x05] != 'P')
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				return 0;
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			/* Bail out if not the expected format */
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			if (data[0x06] != 0x07 || data[0x07] != 0x03 || data[0x08] != 0x01)
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				return 0;
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			printf("ThinkPad Device Presence Detection\n");
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			printf("\tFingerprint Reader: %s\n",
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				data[0x09] & 0x01 ? "Present" : "No");
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			break;
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		case 140:
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			/*
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			 * Vendor Specific: ThinkPad Embedded Controller Program
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			 *
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			 * Source: some guesswork, and publicly available information;
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			 *         Lenovo's BIOS update READMEs often contain the ECP IDs
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			 *         which match the first string in this type.
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			 *
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			 * Offset |  Name                | Width  | Description
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			 * ----------------------------------------------------
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			 *  0x00  | Type                 | BYTE   | 0x8C
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			 *  0x01  | Length               | BYTE   |
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			 *  0x02  | Handle               | WORD   | Varies
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			 *  0x04  | Signature            | BYTEx6 | ASCII for "LENOVO"
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			 *  0x0A  | OEM struct offset    | BYTE   | 0x0B
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			 *  0x0B  | OEM struct number    | BYTE   | 0x07, for this structure
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			 *  0x0C  | OEM struct revision  | BYTE   | 0x01, for this format
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			 *  0x0D  | ECP version ID       | STRING |
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			 *  0x0E  | ECP release date     | STRING |
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			 */
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			if (h->length < 0x0F || memcmp(data + 4, "LENOVO", 6) != 0)
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				return 0;
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			/* Bail out if not the expected format */
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			if (data[0x0A] != 0x0B || data[0x0B] != 0x07 || data[0x0C] != 0x01)
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				return 0;
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			printf("ThinkPad Embedded Controller Program\n");
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			printf("\tVersion ID: %s\n", dmi_string(h, 1));
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			printf("\tRelease Date: %s\n", dmi_string(h, 2));
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			break;
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		default:
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			return 0;
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	}
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	return 1;
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}
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/*
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 * Dispatch vendor-specific entries decoding
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 * Return 1 if decoding was successful, 0 otherwise
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 */
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int dmi_decode_oem(const struct dmi_header *h)
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{
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	switch (dmi_vendor)
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	{
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		case VENDOR_HP:
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		case VENDOR_HPE:
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			return dmi_decode_hp(h);
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		case VENDOR_ACER:
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			return dmi_decode_acer(h);
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		case VENDOR_IBM:
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		case VENDOR_LENOVO:
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			return dmi_decode_ibm_lenovo(h);
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		default:
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			return 0;
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	}
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}