1 | /* |
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2 | * hal_acpi.h - ACPI-specific values and structures |
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3 | * |
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4 | * Copyright (c) 2017 Maxime Villard |
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5 | * |
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6 | * This file is part of ALMOS-MKH. |
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7 | * |
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8 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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9 | * under the terms of the GNU General Public License as published by |
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10 | * the Free Software Foundation; version 2.0 of the License. |
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11 | * |
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12 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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13 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 | * General Public License for more details. |
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16 | * |
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17 | * You should have received a copy of the GNU General Public License |
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18 | * along with ALMOS-MKH.; if not, write to the Free Software Foundation, |
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19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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20 | */ |
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21 | |
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22 | void hal_acpi_init(); |
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23 | |
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24 | #define ACPI_RSDP_ALIGN 16 |
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25 | #define ACPI_RSDP_SIGNATURE "RSD PTR " |
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26 | #define ACPI_RSDP_SIGNATURE_SIZE 8 |
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27 | |
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28 | #define ACPI_OEM_ID_SIZE 6 |
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29 | |
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30 | struct acpi_table_rsdp { |
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31 | char Signature[8]; /* ACPI signature, contains "RSD PTR " */ |
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32 | uint8_t Checksum; /* ACPI 1.0 checksum */ |
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33 | char OemId[ACPI_OEM_ID_SIZE]; /* OEM identification */ |
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34 | uint8_t Revision; /* Must be (0) for ACPI 1.0 or (2) for ACPI 2.0+ */ |
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35 | uint32_t RsdtPhysicalAddress; /* 32-bit physical address of the RSDT */ |
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36 | uint32_t Length; /* Table length in bytes, including header (ACPI 2.0+) */ |
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37 | uint64_t XsdtPhysicalAddress; /* 64-bit physical address of the XSDT (ACPI 2.0+) */ |
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38 | uint8_t ExtendedChecksum; /* Checksum of entire table (ACPI 2.0+) */ |
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39 | uint8_t Reserved[3]; /* Reserved, must be zero */ |
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40 | } __packed; |
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41 | |
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42 | typedef struct acpi_table_rsdp rsdp_t; |
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