blob: ec7d40ae5e6e2f4ff222a146262234e6ad6eee06 [file] [log] [blame]
* Common functions for kernel modules using Dell SMBIOS
* Copyright (c) Red Hat <>
* Copyright (c) 2014 Gabriele Mazzotta <>
* Copyright (c) 2014 Pali Rohár <>
* Based on documentation in the libsmbios package:
* Copyright (C) 2005-2014 Dell Inc.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
#ifndef _DELL_SMBIOS_H_
#define _DELL_SMBIOS_H_
/* This structure will be modified by the firmware when we enter
* system management mode, hence the volatiles */
struct calling_interface_buffer {
u16 class;
u16 select;
volatile u32 input[4];
volatile u32 output[4];
} __packed;
struct calling_interface_token {
u16 tokenID;
u16 location;
union {
u16 value;
u16 stringlength;
int dell_smbios_error(int value);
struct calling_interface_buffer *dell_smbios_get_buffer(void);
void dell_smbios_clear_buffer(void);
void dell_smbios_release_buffer(void);
void dell_smbios_send_request(int class, int select);
struct calling_interface_token *dell_smbios_find_token(int tokenid);