You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
|
|
/* toshiba.h -- Linux driver for accessing the SMM on Toshiba laptops
|
|
*
|
|
* Copyright (c) 1996-2000 Jonathan A. Buzzard (jonathan@buzzard.org.uk)
|
|
* Copyright (c) 2015 Azael Avalos <coproscefalo@gmail.com>
|
|
*
|
|
* Thanks to Juergen Heinzl <juergen@monocerus.demon.co.uk> for the pointers
|
|
* on making sure the structure is aligned and packed.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2, or (at your option) any
|
|
* later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#ifndef _LINUX_TOSHIBA_H
|
|
#define _LINUX_TOSHIBA_H
|
|
|
|
/*
|
|
* Toshiba modules paths
|
|
*/
|
|
|
|
#define TOSH_PROC "/proc/toshiba"
|
|
#define TOSH_DEVICE "/dev/toshiba"
|
|
#define TOSHIBA_ACPI_PROC "/proc/acpi/toshiba"
|
|
#define TOSHIBA_ACPI_DEVICE "/dev/toshiba_acpi"
|
|
|
|
/*
|
|
* Toshiba SMM structure
|
|
*/
|
|
|
|
typedef struct {
|
|
unsigned int eax;
|
|
unsigned int ebx __attribute__ ((packed));
|
|
unsigned int ecx __attribute__ ((packed));
|
|
unsigned int edx __attribute__ ((packed));
|
|
unsigned int esi __attribute__ ((packed));
|
|
unsigned int edi __attribute__ ((packed));
|
|
} SMMRegisters;
|
|
|
|
/*
|
|
* IOCTLs (0x90 - 0x91)
|
|
*/
|
|
|
|
#define TOSH_SMM _IOWR('t', 0x90, SMMRegisters)
|
|
/*
|
|
* Convenience toshiba_acpi command.
|
|
*
|
|
* The System Configuration Interface (SCI) is opened/closed internally
|
|
* to avoid userspace of buggy BIOSes.
|
|
*
|
|
* The toshiba_acpi module checks whether the eax register is set with
|
|
* SCI_GET (0xf300) or SCI_SET (0xf400), returning -EINVAL if not.
|
|
*/
|
|
#define TOSHIBA_ACPI_SCI _IOWR('t', 0x91, SMMRegisters)
|
|
|
|
|
|
#endif /* _LINUX_TOSHIBA_H */
|