projects / deliverable / linux.git / blame
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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 | */ | |
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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 | ||
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62 | |
| 63 | #endif /* _UAPI_LINUX_TOSHIBA_H */ |