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