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/*
* Common functions for kernel modules using Dell SMBIOS
*
* Copyright (c) Red Hat <mjg@redhat.com>
* Copyright (c) 2014 Gabriele Mazzotta <gabriele.mzt@gmail.com>
* Copyright (c) 2014 Pali Rohár <pali.rohar@gmail.com>
*
* 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;
};
};
extern struct calling_interface_buffer *buffer;
extern struct calling_interface_token *da_tokens;
void dell_smbios_get_buffer(void);
void dell_smbios_clear_buffer(void);
void dell_smbios_release_buffer(void);
struct calling_interface_buffer *
dell_send_request(struct calling_interface_buffer *buffer,
int class, int select);
int find_token_id(int tokenid);
int find_token_location(int tokenid);
#endif
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