forked from 0ad/0ad
68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/* Copyright (C) 2009 Wildfire Games.
|
|
* This file is part of 0 A.D.
|
|
*
|
|
* 0 A.D. 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 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 0 A.D. 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/*
|
|
* minimal subset of ACPI
|
|
*/
|
|
|
|
#ifndef INCLUDED_ACPI
|
|
#define INCLUDED_ACPI
|
|
|
|
#pragma pack(push, 1)
|
|
|
|
// common header for all ACPI tables
|
|
struct AcpiTable
|
|
{
|
|
char signature[4];
|
|
u32 size; // table size [bytes], including header
|
|
u8 revision;
|
|
u8 checksum; // to make sum of entire table == 0
|
|
char oemId[6];
|
|
char oemTableId[8];
|
|
u32 oemRevision;
|
|
char creatorId[4];
|
|
u32 creatorRevision;
|
|
};
|
|
|
|
enum AcpiAddressSpace
|
|
{
|
|
// (these are not generally powers-of-two - some values have been omitted.)
|
|
ACPI_AS_MEMORY = 0,
|
|
ACPI_AS_IO = 1,
|
|
ACPI_AS_PCI_CONFIG = 2,
|
|
ACPI_AS_SMBUS = 4
|
|
};
|
|
|
|
// address of a struct or register
|
|
struct AcpiGenericAddress
|
|
{
|
|
u8 addressSpaceId;
|
|
u8 registerBitWidth;
|
|
u8 registerBitOffset;
|
|
u8 accessSize;
|
|
u64 address;
|
|
};
|
|
|
|
#pragma pack(pop)
|
|
|
|
extern bool acpi_Init();
|
|
extern void acpi_Shutdown();
|
|
|
|
extern const AcpiTable* acpi_GetTable(const char* signature);
|
|
|
|
#endif // #ifndef INCLUDED_ACPI
|