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2f9f26bd MK |
1 | /* |
2 | * Common functions for kernel modules using Dell SMBIOS | |
3 | * | |
4 | * Copyright (c) Red Hat <mjg@redhat.com> | |
5 | * Copyright (c) 2014 Gabriele Mazzotta <gabriele.mzt@gmail.com> | |
6 | * Copyright (c) 2014 Pali Rohár <pali.rohar@gmail.com> | |
7 | * | |
8 | * Based on documentation in the libsmbios package: | |
9 | * Copyright (C) 2005-2014 Dell Inc. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | */ | |
15 | ||
16 | #ifndef _DELL_SMBIOS_H_ | |
17 | #define _DELL_SMBIOS_H_ | |
18 | ||
19 | /* This structure will be modified by the firmware when we enter | |
20 | * system management mode, hence the volatiles */ | |
21 | ||
22 | struct calling_interface_buffer { | |
23 | u16 class; | |
24 | u16 select; | |
25 | volatile u32 input[4]; | |
26 | volatile u32 output[4]; | |
27 | } __packed; | |
28 | ||
29 | struct calling_interface_token { | |
30 | u16 tokenID; | |
31 | u16 location; | |
32 | union { | |
33 | u16 value; | |
34 | u16 stringlength; | |
35 | }; | |
36 | }; | |
37 | ||
0db2180f | 38 | int dell_smbios_error(int value); |
e8edf53b | 39 | |
bc2104c2 | 40 | struct calling_interface_buffer *dell_smbios_get_buffer(void); |
b6aa7e18 | 41 | void dell_smbios_clear_buffer(void); |
cb161763 | 42 | void dell_smbios_release_buffer(void); |
c42831c8 | 43 | void dell_smbios_send_request(int class, int select); |
2f9f26bd | 44 | |
96f7ef90 | 45 | struct calling_interface_token *dell_smbios_find_token(int tokenid); |
2f9f26bd | 46 | #endif |