/*
* Copyright (c) 2005 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup kernel_genarch
* @{
*/
/** @file
*/
#ifndef KERN_ACPI_H_
#define KERN_ACPI_H_
#include <typedefs.h>
/* Root System Description Pointer */
struct acpi_rsdp {
uint8_t signature[8];
uint8_t checksum;
uint8_t oemid[6];
uint8_t revision;
uint32_t rsdt_address;
uint32_t length;
uint64_t xsdt_address;
uint32_t ext_checksum;
uint8_t reserved[3];
} __attribute__((packed));
/* System Description Table Header */
struct acpi_sdt_header {
uint8_t signature[4];
uint32_t length;
uint8_t revision;
uint8_t checksum;
uint8_t oemid[6];
uint8_t oem_table_id[8];
uint32_t oem_revision;
uint32_t creator_id;
uint32_t creator_revision;
} __attribute__((packed));
struct acpi_signature_map {
uint8_t *signature;
struct acpi_sdt_header **sdt_ptr;
const char *description;
};
/* Root System Description Table */
struct acpi_rsdt {
struct acpi_sdt_header header;
uint32_t entry[];
} __attribute__((packed));
/* Extended System Description Table */
struct acpi_xsdt {
struct acpi_sdt_header header;
uint64_t entry[];
} __attribute__((packed));
extern struct acpi_rsdp *acpi_rsdp;
extern struct acpi_rsdt *acpi_rsdt;
extern struct acpi_xsdt *acpi_xsdt;
extern void acpi_init(void);
extern int acpi_sdt_check(uint8_t *sdt);
#endif /* KERN_ACPI_H_ */
/** @}
*/