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17070f242a
Passing an SMBIOS buffer pointer to dell_smbios_send_request() is redundant as it should always operate on the SMBIOS buffer exported from the module. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Reviewed-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Darren Hart <dvhart@linux.intel.com>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/*
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* Common functions for kernel modules using Dell SMBIOS
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*
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* Copyright (c) Red Hat <mjg@redhat.com>
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* Copyright (c) 2014 Gabriele Mazzotta <gabriele.mzt@gmail.com>
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* Copyright (c) 2014 Pali Rohár <pali.rohar@gmail.com>
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*
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* Based on documentation in the libsmbios package:
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* Copyright (C) 2005-2014 Dell Inc.
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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 version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _DELL_SMBIOS_H_
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#define _DELL_SMBIOS_H_
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/* This structure will be modified by the firmware when we enter
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* system management mode, hence the volatiles */
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struct calling_interface_buffer {
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u16 class;
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u16 select;
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volatile u32 input[4];
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volatile u32 output[4];
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} __packed;
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struct calling_interface_token {
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u16 tokenID;
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u16 location;
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union {
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u16 value;
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u16 stringlength;
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};
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};
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extern struct calling_interface_buffer *buffer;
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extern struct calling_interface_token *da_tokens;
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void dell_smbios_get_buffer(void);
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void dell_smbios_clear_buffer(void);
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void dell_smbios_release_buffer(void);
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struct calling_interface_buffer *
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dell_smbios_send_request(int class, int select);
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int find_token_id(int tokenid);
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int find_token_location(int tokenid);
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#endif
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