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1 | /* toshiba.h -- Linux driver for accessing the SMM on Toshiba laptops |
2 | * | |
3 | * Copyright (c) 1996-2000 Jonathan A. Buzzard (jonathan@buzzard.org.uk) | |
fc5462f8 | 4 | * Copyright (c) 2015 Azael Avalos <coproscefalo@gmail.com> |
607ca46e DH |
5 | * |
6 | * Thanks to Juergen Heinzl <juergen@monocerus.demon.co.uk> for the pointers | |
7 | * on making sure the structure is aligned and packed. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the | |
11 | * Free Software Foundation; either version 2, or (at your option) any | |
12 | * later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but | |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * General Public License for more details. | |
18 | * | |
19 | */ | |
20 | ||
21 | #ifndef _UAPI_LINUX_TOSHIBA_H | |
22 | #define _UAPI_LINUX_TOSHIBA_H | |
23 | ||
fc5462f8 AA |
24 | /* |
25 | * Toshiba modules paths | |
26 | */ | |
27 | ||
28 | #define TOSH_PROC "/proc/toshiba" | |
29 | #define TOSH_DEVICE "/dev/toshiba" | |
30 | #define TOSHIBA_ACPI_PROC "/proc/acpi/toshiba" | |
31 | #define TOSHIBA_ACPI_DEVICE "/dev/toshiba_acpi" | |
32 | ||
33 | /* | |
34 | * Toshiba SMM structure | |
35 | */ | |
607ca46e DH |
36 | |
37 | typedef struct { | |
38 | unsigned int eax; | |
39 | unsigned int ebx __attribute__ ((packed)); | |
40 | unsigned int ecx __attribute__ ((packed)); | |
41 | unsigned int edx __attribute__ ((packed)); | |
42 | unsigned int esi __attribute__ ((packed)); | |
43 | unsigned int edi __attribute__ ((packed)); | |
44 | } SMMRegisters; | |
45 | ||
fc5462f8 AA |
46 | /* |
47 | * IOCTLs (0x90 - 0x91) | |
48 | */ | |
49 | ||
50 | #define TOSH_SMM _IOWR('t', 0x90, SMMRegisters) | |
51 | /* | |
52 | * Convenience toshiba_acpi command. | |
53 | * | |
54 | * The System Configuration Interface (SCI) is opened/closed internally | |
55 | * to avoid userspace of buggy BIOSes. | |
56 | * | |
57 | * The toshiba_acpi module checks whether the eax register is set with | |
58 | * SCI_GET (0xf300) or SCI_SET (0xf400), returning -EINVAL if not. | |
59 | */ | |
60 | #define TOSHIBA_ACPI_SCI _IOWR('t', 0x91, SMMRegisters) | |
61 | ||
607ca46e DH |
62 | |
63 | #endif /* _UAPI_LINUX_TOSHIBA_H */ |