| 1 | /*
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| 2 | * Copyright (c) 2005 Jakub Jermar
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup genarch
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | */
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| 34 |
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| 35 | #ifndef KERN_ACPI_H_
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| 36 | #define KERN_ACPI_H_
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| 37 |
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| 38 | #include <typedefs.h>
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| 39 |
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| 40 | /* Root System Description Pointer */
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| 41 | struct acpi_rsdp {
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| 42 | uint8_t signature[8];
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| 43 | uint8_t checksum;
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| 44 | uint8_t oemid[6];
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| 45 | uint8_t revision;
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| 46 | uint32_t rsdt_address;
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| 47 | uint32_t length;
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| 48 | uint64_t xsdt_address;
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| 49 | uint32_t ext_checksum;
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| 50 | uint8_t reserved[3];
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| 51 | } __attribute__ ((packed));
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| 52 |
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| 53 | /* System Description Table Header */
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| 54 | struct acpi_sdt_header {
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| 55 | uint8_t signature[4];
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| 56 | uint32_t length;
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| 57 | uint8_t revision;
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| 58 | uint8_t checksum;
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| 59 | uint8_t oemid[6];
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| 60 | uint8_t oem_table_id[8];
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| 61 | uint32_t oem_revision;
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| 62 | uint32_t creator_id;
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| 63 | uint32_t creator_revision;
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| 64 | } __attribute__ ((packed));;
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| 65 |
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| 66 | struct acpi_signature_map {
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| 67 | uint8_t *signature;
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| 68 | struct acpi_sdt_header **sdt_ptr;
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| 69 | const char *description;
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| 70 | };
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| 71 |
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| 72 | /* Root System Description Table */
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| 73 | struct acpi_rsdt {
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| 74 | struct acpi_sdt_header header;
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| 75 | uint32_t entry[];
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| 76 | } __attribute__ ((packed));;
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| 77 |
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| 78 | /* Extended System Description Table */
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| 79 | struct acpi_xsdt {
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| 80 | struct acpi_sdt_header header;
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| 81 | uint64_t entry[];
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| 82 | } __attribute__ ((packed));;
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| 83 |
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| 84 | extern struct acpi_rsdp *acpi_rsdp;
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| 85 | extern struct acpi_rsdt *acpi_rsdt;
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| 86 | extern struct acpi_xsdt *acpi_xsdt;
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| 87 |
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| 88 | extern void acpi_init(void);
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| 89 | extern int acpi_sdt_check(uint8_t *sdt);
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| 90 |
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| 91 | #endif /* KERN_ACPI_H_ */
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| 92 |
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| 93 | /** @}
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| 94 | */
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